New Yellow Lead Production Line Equipment

In the competitive lead processing industry, New Yellow Lead Production Line Equipment stands out as a cutting-edge solution designed to optimize efficiency, reduce costs, and enhance product quality. This equipment is specifically tailored for the production of lead-based products, ensuring a seamless and high-yield process. Below, we provide a detailed overview of the product parameters, features, and benefits, along with technical specifications to help you make an informed decision.

The yellow lead production line features and performance: This line converts lead ingots into lead dioxide, which is then oxidized again in a yellow lead powder sintering furnace to produce qualified yellow lead powder. This production line was developed by integrating advanced concepts and technologies from international peers and in line with the demands of modern society. It can meet the demand for yellow lead powder production both domestically and internationally, while remaining dust-free. Specifications comply with HG/T3002-1997.

The process is described as follows:

(1) Electrolytic Lead Melting Furnace

First, the electrolytic lead is manually transferred to the lead melting furnace. The furnace is heated to approximately 500°C (electric heating is used during the lead melting process). The electrolytic lead is then melted into liquid form and fed into the Barton machine for powder production. The lead melting process is completely enclosed, and a small amount of lead fume and lead slag is generated during the process.

In the lead melting furnace of the yellow lead production line of the project, the lead fume is treated with bag filters before being fed into a water curtain dust removal system. The exhaust gas is discharged through a 20-meter-high exhaust stack. The lead fume and dust captured after the bag filters are then fed to the lead melting furnace for reuse.

The water curtain dust removal system is regularly drained and sent to the production wastewater treatment station for treatment.

(2) The Barton machine produces powder and the dust collector collects the powder.

Lead powder is the active material used in the manufacture of lead-acid battery plates. It is a powdery granular substance of metallic lead covered with a layer of PbO. It is formed from pure lead through a specific thermal oxidation process. The liquid flowing out of the lead melting furnace cools and granulates, and the molten lead enters the Barton furnace.

The production process generally involves first melting pure lead, then allowing the molten lead to overflow into the Barton furnace under natural pressure differential.

The lead oxide is primarily tetragonal, with an average particle diameter of approximately 2μm and a surface area of approximately 2.4-2.8 m2/g. The lead powder after initial oxidation is conveyed to the oxidation furnace via a Jiaolong conveyor through a secondary cyclone separator and bag filter duct. This production line features an induced draft fan at the cyclone and bag filter unit. Both the lead powder machine and dust collector operate at negative pressure. The retained lead from the cyclone separator and bag filter is conveyed to the oxidation furnace along with the initial oxidation lead powder. (3) Oxidation in an Oxidation Furnace

The oxidation furnace is maintained at a temperature of 680-700°C (heated by coal during the oxidation process). The lead oxide powder (which also contains some lead) produced in the pulverizing process is roasted and further oxidized. The oxidation process is continuously stirred (continuous production). The lead surrounded by the lead oxide creates an oxidizing environment, allowing oxidation to occur. The reaction ultimately yields extremely pure yellow lead. The oxide product is indirectly cooled by a water cooling system, rapidly cooling to below 100°C. It then enters a sealed mixing vessel and is transported to the pulverizer. The oxidation process in the oxidation furnace is a fully enclosed process with an air inlet at the feed end, resulting in the generation of no lead smoke or dust. ⑷ Product Grinding and Packaging

Lead oxide produced by calcination in the oxidation furnace is a mixture of lumps and powders. According to the quality standards for yellow lead, manufacturers have specific requirements for yellow lead particle size. For example, the residue on the sieve (using a 180-mesh sieve) must be ≤1.5%. Therefore, the crude product from the oxidation furnace must be pulverized before packaging and shipment. The pulverizing equipment is completely sealed and maintained at room temperature.

Product packaging is performed manually. Powder may fall during the packaging process, generating a small amount of lead dust. This is collected along with the lead dust from the pulverization process through an exhaust gas collection device and fed into a bag filter. After treatment, it enters a water curtain dust removal system, with the exhaust gas discharged through a 20-meter-high exhaust stack. The lead dust trapped by the bag filter is returned to the packaging process for repackaging. The packaging bag switching process results in some lead-containing powder spillage. This will be regularly collected and returned to the oxidation process for re-oxidation, ultimately improving product quality and avoiding hazardous waste disposal.

Water is rarely used for floor cleaning within the plant; instead, vacuuming is used. Because transfers between various work sections of the project primarily utilize mechanical conveying and sealed operations, manual spillage is minimal, resulting in minimal lead on the plant floor. The small amount of lead powder collected after cleaning is then reused in the oxidation process.

Yellow lead production process

1. Barton Milling Section

Sequence Number	Device Name	quantity	power	Material	parameter
1	Automatic lead conveyor	1	1.5	Q235	Harbin bearings, Deneng motors (first-level energy efficiency), and reducer oiling treatment
2	Lead melting furnace	1	15	310Sstainless steel	Internal heating and external heating are both available. The equipment is designed for a temperature range of 0-550 degrees. The material is 321 No Stainless steel (withstands temperature of 780 degrees) with temperature sensor
3	Burner burner	1	/		Riello Burner
4	oxidation furnace 1500 (cover plate δ16 Flange δ25 )	1	45	310S Stainless steel, Bucket δ14 Bottom δ40	310s Stainless steel (withstand temperature of 1180 degrees), barrel δ14 bottom δ40, DeNeng motor (one Grade energy efficiency), Harbin bearings, the equipment is designed to operate at a temperature of 0-600 degrees, with temperature sensors Device
5	Oxidation furnace basics	1	/	Foundation cover	Insulation without leakage

Sequence Number	Device Name	quantity	power	Material	parameter
6	MC-Ⅱ-108 dust collector	1	2.2	Q235δ3	Filter area 65 Square, dust concentration <15g/m3, efficiency 99.5%
7	15KW fan	1	15	9-19-5.6 15KW	Air pressure 7400, flow 3200, DeNeng motor (first-level energy efficiency)
8	Star-shaped discharge valve	4	1. 1*4	Mechanical and electrical separation	Mechanical and electrical separation,4 liters/rev
9	400 cyclone separator	2	/	Q235δ3	Filter area 90 Square, efficiency 92%

2. Yellow lead powder making section

Serial number	Device Name	quantity	power	Remark	Remark
1	Yellow ochre furnace ( 7.5 meters long rice)	1	55	500 welded pipe	310s Stainless steel (withstand temperature 1180 degrees), Deneng motor (first-level energy efficiency), Hal Bin bearings, the equipment is designed to operate at a temperature of 0-730 degrees
2	Cooling screw conveyor	1	1.5	φ159,2 rice	Q235, conveying speed 350KG/H, material temperature ≤65 DeNeng motor (first-level energy efficiency), Reducer oiling treatment
3	Cooling screw conveyor	1	2.2	Φ219× 4.5 rice	304 Stainless steel, conveying speed 400KG/H, material temperature ≤34 degrees, DeNeng motor (first level Energy efficiency), reducer oiling treatment

3. Crushing Section

Serial number	Device Name	quantity	power	Remark	Remark
1	Silo, screw conveyor	1	1.5		Storage capacity 1500KG, conveying speed 1T/H, material temperature is normal temperature, DENENG motor (first level Energy efficiency), reducer oil treatment, packaging and dust collection
2	Cyclone screening machine	1	2.2	Q235	Screening capacity ≥500KG/H, screening fineness ≤200Head
3	MC-Ⅱ-48 dust collector	1	/	Q235δ3	Filtration area 48 square, dust concentration <12g/m3,  efficiency 99.5%
4	Micro-tube dust collector	1	/		Filtration area 70 square meters,  dust concentration <0.03g/m² , efficiency 99.85%

4. Packaging Section

Serial number	Device Name	quantity	power	Remark	Remark
1	Finished product packaging machine	1	5		Lead powder, contact materials 304 stainless steel, Teflon treatment
2	Fixed driving	1	2		2 ton
3	Storage box	1	/		304 Stainless steel
4	platform	1	/

5. Auxiliary equipment

Electrical appliances, cables: electrical appliances PLC control, manual and automatic modes, with fault alarm Electrical appliances: Delixi contactor, Siemens touch screen, Delixi module, Delixi inverter, main power switch Chint (Delixi)