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Lead shot production method

A production method and technology for lead pellets, applied in the field of lead pellet production, can solve the problems of poor production environment, high energy consumption for lead pellet production, and high slag rate, and achieve the effects of saving energy consumption, reducing lead slag rate, and short technological process.

Active Publication Date: 2013-08-28
JIYUAN WANYANG SMELTING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] What the present invention aims to solve is the technical problem of high energy consumption, high smoke and dust rate, high slag rate and poor production environment in the traditional production of lead pellets, thereby providing a production method of lead pellets, which is conducive to reducing the loss of lead, and at the same time reduces the lead melting pot. , lead melting pot dust collection equipment and lead particle cutting equipment

Method used

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  • Lead shot production method

Examples

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Embodiment 1

[0012] Example 1: A production method of lead pellets. The electrolytic refined lead used contains 99.99% lead, put into a refining pot for smelting, feed in natural gas for heating, stir for 20 minutes, and raise the temperature to 450-500°C until the refined lead is completely melted into liquid lead , remove the scum, add caustic soda 0.2~0.5kg / TPb according to the electrolytic lead composition and scum condition, and keep stirring for more than 3 hours. The scum is sent to the reverberatory furnace for melting, and the flue gas passes through the bag filter to the processing equipment. The liquid lead is pumped to the ingot lead tank by lead pump. The flow rate of the lead pump and the liquid level of the ingot lead tank are controlled by the automatic system. The liquid lead overflowed from the ingot lead tank due to the control of the constant liquid level enters the lead shot pouring box, and the lead shot The liquid lead in the pouring box flows to the casting unit to c...

Embodiment 2

[0013] Example 2: The electrolytic refined lead used contains 99.99% lead, put it into a refining pot for smelting, feed in natural gas for heating, stir for 20 minutes, heat up to 450-500 °C until the refined lead is completely melted into liquid lead, remove the scum, according to Add 0.2-0.5kg / TPb of caustic soda to the electrolytic lead composition and scum condition, and keep it warm and stirred for more than 3 hours. The casting unit casts lead grains, controls the flow rate of the lead pump and the speed of the casting unit, the production capacity of the lead grains is 2t / h, the liquid lead flows to the disc casting unit for cooling, and there is a water cooling system under the casting unit, after cooling for 15 seconds, the disc The casting machine is turned to the pellet outlet, and the lead pellets are ejected by the mechanical automatic demoulding plug under the pelletizing machine. The lead pellets flow through the pelletizing tank to the packaging equipment to co...

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Abstract

The invention discloses a lead shot production method, which comprises the following steps of: directly charging electrolyzed fine lead into a refining pot for refining, controlling the temperature at 450 to 500 DEG C till the fine lead is totally melted into liquid lead, fishing the floating slag, then adding 0.2 to 0.5kg / TPb of caustic soda, stirring for 3 to 6 hours with temperature preservation, pumping the liquid lead in the refining pot into an ingot casting lead tank through a lead pump, delivering the liquid lead overflowed by controlling the constant liquid level in the ingot castinglead tank to a lead shot pouring tank, making the liquid lead in the lead shot pouring tank flow to a shot casting unit for casting, performing cooling, stripping, shot discharge and laundering in the closed shot casting unit, and thus completing shot preparation. By directly producing lead shorts in the method, massive energy consumption is saved, and the production cost of a lead-acid storage battery is reduced; and the process flow is short, the operation is simple, and the index is easily controlled.

Description

technical field [0001] The invention relates to a production method for preparing lead pellets. Background technique [0002] At present, in the field of traditional lead smelting, electric lead is melted and cast in a refining pot to produce lead ingots (each ingot weighs 45kg) for sale; in the lead-acid battery industry, the lead powder machine for producing lead powder needs about 50g of lead pellets as raw materials. The traditional way to obtain lead pellets is to melt lead ingots in a lead melting pot, then pump the liquid lead to a chute to cool into strips, and then cut the cooled lead into pellets with a granulator. In this way, refined lead is melted twice to make lead pellets, which wastes a lot of energy, increases the volatile smoke and dust rate and slag rate of lead, causes great loss, serious environmental pollution, and poor environmental protection effect; the traditional process is complicated, with many equipments, High energy consumption. These problem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/08
Inventor 卢一明卢新民卢志东李小兵张立
Owner JIYUAN WANYANG SMELTING GROUP