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Summary of 8/15/26 12:47 GMT:>> Show Compact View
7/11/25 3:20 GMT
FEDA FD-80T Heavy Duty Thread Rolling Machine Automatic Knurling Machine St

1. Automatic feeding with adjustable brackets 2. Speed is adjustable for different products 3. 54mm hole diameter for SKD11/DC53 thread rolling dies 4. Max. Rolling pressure is about 800KN 5. It is easy to operate and maintain the machine 6. CE, ISO9001-2008 Specification Working diameter 12-130mm Thread pitch 1.0-15mm Thread length In feed or Thru feed Spindle speed 16/21/27rpm (variable speed) Outside diameter of rolling die 220-300mm Inside diameter of rolling die 100mm Thickness of rolling die 250mm Feed stroke 0-20mm Mian motor 30KW Hydraulic motor 5.5KW Max rolling pressure 80T Supply voltage 380V 3P 50Hz Weight(reference) 7800(KG) Package Dimension(L*W*H) 2550*2250*2000mm Dimension(L*W*H) 2450*2150*1850mm

Minimum Order: 1 bags

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Ricardo Xia
19166277530

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Shenzhen Feda Machinery Industry Co.,Ltd
Hong Hai Building, Hongxing Community, Songgang Street, Bao'an District, Shenzhen, China
Shenzhen 518105
China
7/11/25 3:15 GMT
FEDA FD-100T Rebar Thread Rolling Machine Heavy Duty Thread Making Machine

1. Automatic feeding with adjustable brackets 2. Speed is adjustable for different products 3. 54mm hole diameter for SKD11/DC53 thread rolling dies 4. Max. Rolling pressure is about 1000KN 5. It is easy to operate and maintain the machine 6. CE, ISO9001-2008 Specification Working diameter 14-150mm Thread pitch 1.0-15mm Thread length In feed or Thru feed Spindle speed 16/21/27rpm (variable speed) Outside diameter of rolling die 220-300mm Inside diameter of rolling die 110mm Thickness of rolling die 250mm Feed stroke 0-20mm Mian motor 37KW Hydraulic motor 7.5KW Max rolling pressure 100T Supply voltage 380V 3P 50Hz Weight(reference) 8800(KG) Package Dimension(L*W*H) 2550*2450*2050mm Dimension(L*W*H) 2450*2350*1900mm

Minimum Order: 1 bags

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Ricardo Xia
19166277530

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Shenzhen Feda Machinery Industry Co.,Ltd
Hong Hai Building, Hongxing Community, Songgang Street, Bao'an District, Shenzhen, China
Shenzhen 518105
China
7/10/25 8:59 GMT
FD-20T Rebar Threading Machine Spoke Threading Machine

1. Automatic feeding with adjustable brackets 2. Speed is adjustable for different products 3. 75mm hole diameter for SKD11/DC53 thread rolling dies 4. Max. Rolling pressure is about 200KN 5. It is easy to operate and maintain the machine 6. CE, ISO9001-2008 Specification Working diameter 10-70mm Thread pitch 1.0-6mm Thread length In feed or Thru feed Spindle speed 28/35/45/56rpm (variable speed) Outside diameter of rolling die 178mm Inside diameter of rolling die 75mm Thickness of rolling die 140mm Feed stroke 0-12mm Total machine power 11KW Max rolling pressure 20T Supply voltage 380V 3P 50Hz Weight(reference) 2800(KG) Package Dimension(L*W*H) 1600*1510*1750mm Dimension(L*W*H) 1550*1460*1650mm A1. We are factory of manufacturing thread rolling machine and dies by ourselves. Welcome to visit our factory, if possible. Q2. What is the delivery time ? A2. Usually 15-25 working days for machine, and 10-15 working days for dies. Q3. What is the warranty time for machine? A3. Usually 12 months from B/L date. Q4. What is the payment term? A4. T/T, Western Union, Money Gram, Alipay, PayPal. 50% as deposit, and 50% before shipping. Q5. Is it possible to design and produce automatic loading & unloading devices? A5. Yes, Engineer can design special auto feeding device according to your products. But please provide the drawing of your products before that. Q6. How will you solve problems that we face during using your machine? A6. A. Please provide necessary videos and pictures that can show the problems, our engineers will check and give corresponding solutions. B. Will arrange engineers to solve problems at the scene, if possible. WhatsApp&Phone: +86-13392185053 QQ: 3931526564 Wechat: fedacom16

Minimum Order: 1 bags

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Sini Luo
13392185053

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Feda Industry Co., Ltd
No. 608, Hong Hai Building, Hongxing Community, Songgang Street, Bao'an District, Shenzhen, China
ShengZhen 518105
China
7/10/25 1:56 GMT
TOFFON freeze dryer TF-SFD-2

TOFFON freeze dryer TF-SFD-2 Product Overview: SFD Pilot-type Freeze-Dryer simplifies the cumbersome operation of small freeze- dryers, prevents material contamination, and accelerates the sublimation of material moisture. This series of models features shelf heating and programmable functions, allowing users to view the freeze-drying curve and conveniently observe the material's freeze-drying process. 1. In-site pre-freeze drying,fully automatic operation. Equipment features: 2. Special thermal oil for efficient heat conduction, high temperature control precision, shelf temperature difference ≤1°C, achieving uniform drying effect. 3. 304 stainless steel square trays, resistant to deformation and corrosion, easy to clean. 4. Touch screen operation, PLC control,can set startup password, display drying curves. 5. Equipped with an inflation valve, capable of introducing inert gas during drying. the drying chamber features a high-transparency colorless transparent organic glass door, providing a clear observation of material changes during operation. 6. Adjustable temperature and vacuum regulation functions, controllable production process, capable of storing multiple programs, each with 36 segments. the freeze- drying machine can modify program parameters during operation and record vacuum drying curves and data online.

Minimum Order: 1 bags

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tuofen
15021803145

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Shanghai Toffon Machinery Equipment
上海市宝山区罗店路388弄MAX科技园一期38号楼10楼
shanghai 201908
China
7/10/25 1:19 GMT
Multi-Ply Conveyor Belt

The multi-layer rubber textile conveyor belts we offer are composed of three components: cloth cover, carcass cover and skim cloth.  The rubber cover is a unique rubber compound suitable for different purposes, like abrasion resistance, high temperature resistance, cold strength, acid resistance, fuel resistance and many others. Material Quality Nylon (NN)  Highly flexible.  Highly resistant againstimpact. Highly bendable.  Polyester (EP)  Less elongation.  Less deformed by heat.  Less affected by moisture. Cotton (CC56)  Good Price. Structure The multi-layer conveyor belts we offer feature our renowned multi-layer EP construction (warp knitted polyester and weft knitted nylon). These rubber textile conveyor belts are also equipped with a special rubber layer (coating layer) that has excellent fabric bonding properties. The top layer of the belts features a highly wear-resistant cover for heavy-duty applications or special covers upon customer request.

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Feilong LEE
86-0312-6268481

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Baoding Hi Hero Conveying Equipment IMP & EXP CO.,
Jiariyadiancheng, Yangguang Stree
Baoding
China
7/10/25 1:18 GMT
Steel Cord Conveyor Belt

Steel cord conveyor belts have proved to be a very reliable and cost-efficient mode of bulk material handling in long distance conveyors. we provide transverse reinforcementand, embedded sensor coil and normal type steel cord belt conveyor belt.  (1) Belt elongation: ST500~ST5000(kN/m) (2) Belt width: 600~2200mm (3) Minimum length: 100m Our steel cord conveyor belts are crafted with premium high-tensile steel cords and a selection of cover grades to suit various industrial needs. A standard construction with 7 x 7 hot-dip galvanized steel cords offers exceptional tensile strength reaching up to 2,000 N/mm. For applications demanding even greater strength, we provide a 7 x 19 configuration capable of withstanding up to 10,000 N/mm. The cords are designed with an elongation rate of 0.22 - 0.28%, ensuring high structural integrity and pull-out strength. This contributes to superior fatigue resistance. The open cross-lay cord structure, combined with a robust chemical adhesive system, allows for thorough core rubber penetration, ensuring a strong bond and long-lasting protection against corrosion.   Versatile Cover Grades We offer a range of cover grades, all composed of top-tier rubber that exhibits extreme resistance to abrasion, cutting, and impact, while also boasting excellent resistance to aging. The choice of cover grade is application- specific and significantly impacts the belt's service life. Selecting the appropriate belt for your needs minimizes waste and supports your sustainability goals.   Wear-Resistant Options For heavy-duty conveying tasks involving bulky and sharp materials, such as abrasive rocks, our belts are available in X, Y, W grades (and equivalents). These high-quality cover grades provide optimal protection for the belt carcass, ensuring extended service life.   Heat-Resistant Variants We provide specialized grades for high-temperature applications, including T120 and T200, suitable for materials like clinker, coke, foundry sand, and slag. These Conveyor belts are designed to handle continuous temperatures up to 190°C, with the ability to withstand brief temperature spikes of up to 200°C.   Flame-Resistant Compliance Our belts are available in a flame-resistant grade K, compliant with ISO 340. These belts are ideal for use in tunnel projects, although not recommended for underground applications. For personalized advice and to determine the most suitable belt and cover grade for your specific operations, please reach out to our Hi Hero specialists.

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Feilong LEE
86-0312-6268481

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Baoding Hi Hero Conveying Equipment IMP & EXP CO.,
Jiariyadiancheng, Yangguang Stree
Baoding
China
7/10/25 1:18 GMT
Oil Resistant Conveyor Belt

Oil resistant conveyor belt is used in greasy situation, conveying oily materials such as mineral oil, vegetable oil, animal oil, organic solvent in food processing plants or chemical factories. The conveyor belt uses multiple layers of EP/nylon fabric as the reinforcement layer, and the surface is covered with an oil-resistant rubber layer made by a special formula and process. Ordinary conveyor belts are prone to expansion, deformation, and surface peeling when in contact with or soaked in oily materials. HI HERO uses a unique rubber formula technology to significantly improve the conveyor belt's anti- expansion, anti-deformation, wear resistance, impact resistance, anti-aging, and light resistance properties, ensuring its stability and durability under complex working conditions. Our oil-resistant conveyor belts are designed to withstand the challenges of environments where oil and grease are common. These belts are engineered to maintain their strength and flexibility even when exposed to oil, ensuring reliable operation in tough conditions. Applications Oil-resistant 210 black NBR (nitrile) Resistant to aromatic solvents, halogenated hydrocarbons, ketones and oils (except esters). The cover rubber has excellent abrasion and tear resistance. Oil resistant 220 black NBR + NR (nitrile + natural) Suitable for applications requiring mild oil resistance and oil/cold resistance. Commonly used for transporting wood chips, frozen fish, grains, etc. Oil resistant 300 PVC + NBR (vinyl + nitrile) poly blend Highly oil resistant, suitable for general food transport (except for food to be eaten directly). Caution may occur when the operating temperature exceeds 80°C. Standard stock is one side white and one side green. Oil-resistant 310 black, oil-resistant 330 white, oil-resistant 340 green PVC + NBR (vinyl + nitrile) This is a custom color product of the Oil-resistant 300 series. This section mainly focuses on the material types, oil resistance and applicable scenarios of oil-resistant conveyor belts, and details the characteristics of oil-resistant conveyor belts with different formulas (such as NBR, PVC, etc.) in terms of chemical corrosion resistance, wear resistance, temperature resistance, etc., as well as their applications in food, industry and other fields.

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Feilong LEE
86-0312-6268481

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Baoding Hi Hero Conveying Equipment IMP & EXP CO.,
Jiariyadiancheng, Yangguang Stree
Baoding
China
7/10/25 1:17 GMT
Cold Resistant Conveyor Belt

We provide cold resistant conveyor belts, meticulously engineered with rubber cover grades to ensure seamless operation in the harshest cold environments. These belts are designed to maintain their integrity and performance in temperatures as low as –40 to –60 degrees Celsius. Cold resistant conveyor belt structure EP rubber conveyor belt consists of upper cover rubber, carcass and lower cover rubber. The carcass of the conveyor belt consists of fabric and rubber layer. We provide EP100, EP125, EP150, EP200, EP250 and other strength conveyor belt fabrics. The carcass thickness and fabric layers are customized according to the requirements of the conveyor belt.   Material of cold resistant conveyor belt The Material of our cold resistant conveyor belts is Ep Nylon Cotton, those fabric inside ensures the belts retain their exceptional strength, elasticity, and impact resistance even in the most frigid conditions. Two Types of Cold Resistant Conveyor Belts for option: According to different cold resistance performance, it is divided into two types: C1 and C2 C1: Operating temperature range: -45°C to +50°C. C2: Operating temperature range: -60°C to +50°C.

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Feilong LEE
86-0312-6268481

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Baoding Hi Hero Conveying Equipment IMP & EXP CO.,
Jiariyadiancheng, Yangguang Stree
Baoding
China
7/10/25 1:17 GMT
Heat Resistant Conveyor Belt

High temperatures are a real challenge for conveyor belts and can cause a lot of damage. When it's hot, the rubber on the belt ages quickly, making it hard and causing cracks. The heat also harms the main body of the belt because it weakens the bond between the outer cover and the belt's core, as well as between the layers of fabric inside the core. This can literally make the belt fall apart, a problem we call "de-lamination." As the rubber gets harder and less stretchy from the heat, its ability to stretch before breaking can drop by up to 80%, which really hurts its strength and flexibility. Plus, its resistance to wear can decrease by 40% or more. But, as the reference guide shows, Hi hero heat-resistant belts are really good at handling heat, and they last much longer than other belts out there. A QUICK REFERENCE GUIDE TO HIHERO HEAT RESISTANT COVERS  Heat-Resistant Conveyor Belt Design Cover rubber: SBR, EPDM rubber or chlorobutadiene rubber. Carcass: polyester cloth or nylon cloth. According to the client’s request, we can make an endless belt. The heat-resistant conveyor belt is made up of multi-layer structure to ensure exceptional durability and performance under high-temperature conditions. Its construction includes a high-temperature burning layer, a transition layer, an organic insulation layer, and a robust heat-resistant layer. Each layer is meticulously designed to work in harmony, providing superior resistance to heat, wear, and mechanical stress. The rubber surface is crafted using premium materials such as EPDM (Ethylene Propylene Diene Monomer) or SBR (Styrene-Butadiene Rubber), both of which offer excellent heat resistance and flexibility. For the reinforcing layer, high- strength materials like polyester canvas or high-permeability fabric are utilized, ensuring the belt maintains its structural integrity even under extreme conditions. These layers are seamlessly bonded together through high-temperature vulcanization, a process that enhances the belt's overall strength, elasticity, and longevity. This advanced manufacturing technique ensures the conveyor belt can withstand demanding industrial environments, making it ideal for applications in industries such as steel, cement, and chemical processing. Heat resistant conveyor belt Technical data:  heat resistant conveyor belt cover type T1 able to bear the temperature range of material less than 120°C. T2 able to bear the temperature range of material 120°C – 140°C  . T3 able to bear the temperature range of material 150°C – 180°C. T4:able to bear the temperature range of material 180°C – 400°C T5:able to bear the temperature range of material 240°C800°C Based on your material, choose the correct conveyor belt.

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Feilong LEE
86-0312-6268481

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Baoding Hi Hero Conveying Equipment IMP & EXP CO.,
Jiariyadiancheng, Yangguang Stree
Baoding
China
7/9/25 9:38 GMT
Biodegradable Nonwoven Colored Dry Wipes

Product Description With the characteristics of short process flow, fast production speed, high output, low cost, wide range of uses, nonwoven fabrics are a new generation of environmentally friendly materials that are water-repellent, breathable, flexible, non-combustible, non-toxic and non-irritating, rich colors and other features. Item Name Kitchen Cleaning Nowoven Towel Material Viscose/Polyester Usage Kitchen, Table, Home Cleaning Weight 35-80g/m2 Width Customized Color Customized Type Cross or Parallel, Plain or Embossed Package Plastic bags,pressboard at the both end,wrapped with PE film. Feature of Biodegradable Nonwoven Colored Dry Wipes Unlike tissue papers, non-woven towels leave no fluff when cleaning and can be washed several times. With versatile usages, they can be used on kichen utensils, cars, applicances, titles, glass, leather shoes, plates, tables, floors and windows. They are great for cleaning small areas in the kitchen and washing dishes. Packaging And Delivery Each roll of nonwoven faric is packed well by wrapping films. We have rich experience in loading nonwoven fabrics and will calculate all the quantities that can be loaded in a container for customers without wasting any space. Normally one 40HQ container can load about 10 tons of nonwoven fabrics. The roll diameter and width of spunlace nonwoven fabrics both are customized by clients’ needs. Wholesale Non Woven Fabric For Wet Wipes Production Factory Price As leading China non woven fabric for wet wipes manufacturer and supplier, QIANZHAO supplies and wholesale spunlace non woven fabric and flushable nonwoven fabric for wet wipes manufacturer with OEM and ODM service, Please contact us through email info@qzqianzhao.com, then we will reply you for products detail with factory price.

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Joyce Yang
86-13959999259

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QUANZHOU QIANZHAO IMPORT AND EXPORT TRADE CO.,LTD
37-4 Xuefu Road, Meifeng Community, Quanzhou City, Fujian Province, China
Quanzhou 362000
China
7/9/25 9:29 GMT
Hot Selling Colorful PP Spunbond Nonwoven

Hot Selling Colorful PP Spunbond Nonwoven Description With the characteristics of short process flow, fast production speed, high output, low cost, wide range of uses, nonwoven fabrics are a new generation of environmentally friendly materials that are water-repellent, breathable, flexible, non-combustible, non-toxic and non-irritating, rich colors and other features. Our Workshop Our production workshop is spacious, clean and tidy, with multiple non-woven production lines. It meets national purification standards and is equipped with complete experimental, analytical and testing equipment. Environmental emissions Environmental protection is an eternal topic in economic and social development, the core of the road to sustainable development, and a principle that every enterprise should follow. As a responsible enterprise, our company has continuously upgraded its emission equipment and invested in UV photolysis purification and activated carbon purification equipment. Dual environmental treatment and dual protection are safer and more environmentally friendly. In the entire process of daily production and operation activities, we can achieve full-process, all-weather, all-staff safety. Environmental management. Ensure long-term, stable and efficient operation of environmental protection facilities, thereby reducing atmospheric pollution and slowing down ecological deterioration. Thereby improving the economic benefits and corporate image of the enterprise Main Types of Non Woven Fabric for Wet Wipes Biodegradable Flushable Nonwoven Fabric: Flushable nonwoven fabric is designed to disintegrate safely in water, making them suitable for flushable hygiene products like wet wipes. They are typically made from natural fibers like cellulose or synthetic fibers engineered to break down under specific conditions. Spunlace Non Woven Fabric: Spunlace non woven fabric is produced using a unique technology that combines the principles of spinning and hydroentangling. Water jets entangle the fibers, creating a strong and soft non-woven fabric. Jumbo rolls refer to large rolls of fabric used in industrial production.

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Joyce Yang
86-13959999259

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QUANZHOU QIANZHAO IMPORT AND EXPORT TRADE CO.,LTD
37-4 Xuefu Road, Meifeng Community, Quanzhou City, Fujian Province, China
Quanzhou 362000
China
7/9/25 9:22 GMT
High Performance 12 Lanes Baby Wet Wipes Making Machine

Production flow: Raw material loading → vertical-folding → tissue wetting → tissue cutting → tissue counting and stacking → tissue delivery → film date Printing, punching and labeling→tissue packing → full auto plastic lid application Product Type: Baby wet wipes; Household wet wipes (30-120pcs/pack) Technical feature: This machine adopts full servo drive and PLC control system for operation. It’s made of raw material loading device, tension device, folding device, automatic wetting system, automatic counting device and slitting device, printing and punching device, labeling device, packing and gusseting device, full auto plastic lid application for finished products. Stainless steel is applied to the cover of machine and main spare parts. The parts in contact with liquid and fabric are made of stainless steel. All the processes are finished on the machine without manual labor involved, so the finished product meets hygienic standard. The folding device is specially designed to make various folding ways feasible. It’s smart and speedy. Our advantages of High Performance 12 Lanes Baby Wet Wipes Making Machine 1.High speed: 3500-4800 pcs/min (25-60bags) 2.Professional manufacturer 3.Top quality 4.High performance 5.Full servo automatic control 6.Easy operation 7.Quality assurance 8.Hygiene products converting solution 9.Customized service 10.Main supported parts from world famous brands. The archive is digitally managed into the ERP system number to keep the standard samples, process technology and material characteristics of each product series in order to be traceable for subsequent orders; The process specialist of the technical department shall sort out the file bag and put it into storage. Archive: 1. Printing sample (printing process data record) 2. Bag-making sample (bag-making process data record) Wet Wipes Making Machines - Factory Price With 16+ years of expertise, Quanzhou Qianzhao Co., Ltd specializes in high- quality wet wipes machines and raw materials, serving global clients. We offer custom/OEM solutions, competitive pricing, and reliable after-sales support. Our dedication to innovation ensures premium performance. Contact us at info@qzqianzhao.com for tailored solutions! Contact us for the latest wet wipes machine price!

Contact:
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Email:
Joyce Yang
86-13959999259

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QUANZHOU QIANZHAO IMPORT AND EXPORT TRADE CO.,LTD
37-4 Xuefu Road, Meifeng Community, Quanzhou City, Fujian Province, China
Quanzhou 362000
China
7/9/25 9:20 GMT
High Speed Fully Automatic 16 Lanes Wet Wipes Production Line

Production Description Production flow: Raw material loading → vertical-folding → tissue wetting → tissue cutting → tissue counting and stacking → tissue delivery → film date Printing, punching and labeling→tissue packing → full auto plastic lid application Product Type: Baby wet wipes; Household wet wipes (30-120pcs/pack) Technical feature: This High Speed Fully Automatic 16 Lanes Wet Wipes machine adopts full servo drive and PLC control system for operation. It’s made of raw material loading device, tension device, folding device, automatic wetting system, automatic counting device and slitting device, printing and punching device, labeling device, packing and gusseting device, full auto plastic lid application for finished products. Stainless steel is applied to the cover of machine and main spare parts. The parts in contact with liquid and fabric are made of stainless steel. All the processes are finished on the machine without manual labor involved, so the finished product meets hygienic standard. The folding device is specially designed to make various folding ways feasible. It’s smart and speedy. Environmental emissions Environmental protection is an eternal topic in economic and social development, the core of the road to sustainable development, and a principle that every enterprise should follow. As a responsible enterprise, our company has continuously upgraded its emission equipment and invested in UV photolysis purification and activated carbon purification equipment. Dual environmental treatment and dual protection are safer and more environmentally friendly. In the entire process of daily production and operation activities, we can achieve full-process, all-weather, all-staff safety. Environmental management. Ensure long-term, stable and efficient operation of environmental protection facilities, thereby reducing atmospheric pollution and slowing down ecological deterioration. Thereby improving the economic benefits and corporate image of the enterprise Types Of Wet Wipes Making Machines As leading China wet wipes making machine manufacturer, QIANZHAO provides quality wet wipe making machines equipment for our customers to make wet wipes, wet tissues products. Quality wet wipe machines with 6, 12, 16, 20 lanes Single Sachet Wet Wipes Machine Alcohol Wipes Machine Automatic Wet Wipe Machine Contact us for the latest wet wipes machine price!

Contact:
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Email:
Joyce Yang
86-13959999259

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QUANZHOU QIANZHAO IMPORT AND EXPORT TRADE CO.,LTD
37-4 Xuefu Road, Meifeng Community, Quanzhou City, Fujian Province, China
Quanzhou 362000
China
7/8/25 7:31 GMT
Arsenic Reduction Furnace

This series of patented equipment developed by our company in cooperation with Central South University is mainly adopted to treat arsenic alkali slag, arsenic filter cake, and other arsenic contented materials from copper smelter,lead smelter and zinc smelters. The main process is: hydrometallurgy + pyrometallurgy combined to turn the arsenic-containing hazardous wastes into pure arsenic trioxide, and then reduced to metallic arsenic, metallic arsenic can be sold according to local market demand or rigid landfill disposal. The main patented equipment of this process, As2O3 purification furnace and arsenic reduction furnace, is widely praised for its high level of environmental protection, high level of automation, and large treatment capacity during industrial application. Arsenic Reduction Furnace is a type of industrial equipment used in metallurgical processes to remove or reduce the arsenic content in ores, concentrates, or other materials. Arsenic is commonly found in copper, lead, and zinc ores and can pose environmental and health hazards if not properly managed. The reduction furnace typically uses high temperatures and specific reducing agents (such as carbon or hydrogen) to convert arsenic compounds (often in the form of arsenic oxide) into more stable or less toxic forms that can be safely captured or neutralized. Key Components: Reactor Chamber: The primary area where the thermal reduction process occurs. Heat Source: Often electric or fuel-based, it provides the necessary temperature to initiate the reduction reactions. Reducing Agent: Materials like carbon, hydrogen, or other chemicals that assist in breaking down arsenic compounds. Scrubber or Filter System: Captures or neutralizes the arsenic gas or vapor produced during the process to prevent atmospheric release. Applications: Mining and Metallurgy: Commonly used in smelters where copper, lead, or zinc ores are processed, and arsenic is a byproduct. Environmental Management: Helps reduce the risk of arsenic contamination in the environment by stabilizing arsenic compounds.

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Liu Wei
0731 85404716

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Hunan RE Technology CO.,LTD
Building.10, Liandong U Valley Industrial Park, Yuelu District
Changsha 410036
China
7/8/25 7:31 GMT
Fuming Furnace

The principle of fuming is a reduction and volatilization process, which is to blow air and pulverized coal into the slag in the fuming furnace, generate heat and carbon monoxide after combustion, keep the slag at high temperature, and make the compounds and free ZnO and PbO in the slag reduced to Zn and Pb vapors, the vapor will rise to the upper space of the furnace, meet CO2 or inhaled air and oxidize to zinc oxide and lead oxide again, and are collected in the state of soot. The four walls of the fuming furnace are all composed of water jackets. The lowermost water jacket on the side is provided with a tuyere. The inner wall of the water jacket is welded with Φ16mm and 50mm long pins, and the distance between the nails is 50mm, so that the condensed slag adheres to it and forms slag layer protects the water jacket and reduces heat loss. There is a slag outlet on the water jacket at the front end of the furnace. The lower layer of the water jacket and the inclined flue are water-cooled and circulated, and the upper layer of the water jacket is cooled by vaporization. The tuyere structure adopts a tuyere with a ball valve, and there are two branch pipes. The one near the water jacket is called the primary air coal pipe, and the one outside is the secondary air pipe. In order to prevent pulverized coal from escaping out of the furnace, the secondary air pressure is slightly higher than the primary air pressure (about 100mmHg). There are three air outlets on the upper part of the furnace, which is convenient for operation and observation, and can inhale air oxidized metal vapor.   Fuming Furnace Operational In order to achieve good results in the fuming process, the following conditions must be well controlled:temperature, fuel and air supply volume, slag composition, molten pool depth.   1. Temperature If the temperature is too high (such as exceeding 1350°C), iron deposits or Zn-Fe, Sn-Fe alloys may be formed, which is harmful to the fuming operation. If the temperature is too low, the reduction rate of metal oxides will slow down, the volatilization rate will decrease, the fluidity of the slag will deteriorate, and there may even be a danger of furnace formation, so the temperature in the fuming practice is kept in the range of 1150-1300 °C.   2. Fuel and air supply volume The most active factor affecting the volatilization rate in the fuming process is the air supply volume. Because the temperature in the furnace, the ratio of CO/CO2, the amount of gas, and the vapor pressure of the metal are all related to the air supply volume. The volume of the air supply depends on the pulverized coal consumption and the air utilization coefficient (α). The larger the air utilization coefficient, the higher the thermal effect of the fuel, the greater the partial pressure of CO2, and the higher the temperature in the furnace; the smaller the air utilization coefficient , the thermal effect is reduced, the partial pressure of CO becomes larger, and the reducing ability is enhanced. Pulverized coal is both a reducing agent and an exothermic agent in the fuming process, so the CO/CO2 should have an appropriate ratio during combustion. The air utilization factor actually adopted by the factory is variable. Usually, at the beginning of fuming, an air utilization factor close to 1.0 causes almost all carbon to be burned into CO2 to increase the temperature of the slag. In the reduction stage, adjust the air utilization factor to make carbon into CO as much as possible to improve the reduction ability. 3. Slag composition In practical the actual zinc content of the slag feed into the fuming furnace should be >6%. Below 4%, fuming treatment is uneconomical. Regarding the effect of slag composition on the volatilization rate of zinc, it can be summarized as follows: The increase of CaO content can increase the volatilization rate of zinc; The increase of FeO content in slag has little effect on ZnO activity; The content of SiO2 increases, and the volatilization rate of zinc decreases. Therefore, the silicic acidity of the slag is preferably in the range of 1.1 to 1.2.   4. Molten pool depth The thickness of the slag layer in production is generally in the range of 700- 1000mm above the tuyere area.

Contact:
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Email:
Liu Wei
0731 85404716

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Hunan RE Technology CO.,LTD
Building.10, Liandong U Valley Industrial Park, Yuelu District
Changsha 410036
China


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