Reverberator for recovery processing waste lead acid accumulator

Abstract

The invention discloses a reflecting furnace for recovering and processing used lead-acid battery, which comprises a furnace body, a feeding inlet and a smoke suck pipe. The furnace body is positioned with a plurality of feeding inlets and the smoke suck pipe is arranged at top of the furnace body. The invention also comprises a plurality of gas pipes positioned at top of the furnace body and communicated with the interior of the furnace body through a plurality of nozzles. By heating the reflecting furnace through burning gas by using coal gas producers through gas pipes, the invention overcomes the defects as serious dust caused by charging coal and poking coal during burning coal and insufficient temperature, etc., which will not harm for operating worker's health and pollute the environment; besides, by adopting a plurality of nozzles, which is able to provide adequate firepower and make the lead solid wastes to sufficiently melt up; the gas nozzle is arranged at front end of the reflecting furnace and through mouths are positioned at rear end, thereby enabling the fire in front to move constantly and the lead articles in rear to be sufficiently melt up; a heat exchanging pipe is mounted at top of the reflecting furnace and is connected with a heat exchanger in flue for the secondary burning, which enables the fire bigger and the time for melting shorter.

Description

【Technical field】 [0001] The invention relates to the field of lead-acid batteries, in particular to a reverberatory furnace for recycling and treating solid waste in waste lead-acid batteries. 【Background technique】 [0002] Lead-acid batteries are used in a wide variety of applications to power a wide variety of products. At present, electric bicycles that are vigorously promoted as smoke-free vehicles basically use lead-acid batteries to provide walking power. However, lead-acid batteries are prone to cause "secondary pollution" but the development of this new type of means of transportation has been criticized. [0003] Lead-acid batteries are composed of positive and negative plates, separators, shells, electrolytes and wiring pile heads, etc. The chemical reaction of the discharge depends on the positive plate active material (lead Lead) is carried out under the action of electrolyte (dilute sulfuric acid solution), wherein the grid of the pole plate is made of lead-...

AI Technical Summary

Problems solved by technology

During the dismantling process of the battery, the acid liquid is easy to leak into the soil and cause pollution; the lead-containing substances are not burned sufficiently, and the lead recovery rate is low, generally only reaching about 80%, and the residual lead discharged into the atmosphere will still cause pollution. ; There is a lot of lead dust in the production workshop, which affects the physical and mental health of the operators; the waste gas and smoke discharge equipment is simple and easy to leak, causing pollution to the environment

The leaked waste water contains soot suspensions and heavy metal ions that naturally settle in the air, directly causing pollution to groundwater and drinking water for residents; the waste residue contains lead, arsenic, antimony and other minerals deposited in the soil, which are difficult to remove , and gradually gather in crops, through the food chain, causing harm to animals and humans

There is also a smelting technology that uses desulfurization first and then fire reduction in foreign countries. However, this technology requires a lot of equipment and requires a variety of equipment such as blast furnaces, reverberatory furnaces, electric furnaces, and converters, and its working process will also pollute the environment.

[0006] Among them, the reverberatory furnace for smelting and processing lead-containing waste is an important equipment in the process. The current reverberatory furnace has a simple structure. It adopts the method of burning furnace mouth in front of the furnace and manually adding coal for combustion and heating. There are workers who add coal and poke coal. The dust is too large, the temperature is not in place, the time is long, and it is unfavorable to the human body and the environment; the solid waste is not fully burned, and the lead recovery rate is low; the lead liquid is easy to leak from the bottom of the furnace, causing pollution; when the temperature is too high, the furnace body Swelling and deformation are serious; lead dust is easy to run into the workshop when feeding materials, causing damage to workers and the environment

Images