1. Classification. Recycling sales of used battery batteries smashed, peeled off the zinc shell and battery bottom iron, remove the copper cap and graphite rods, the remaining black matter is a mixture of manganese dioxide and ammonium chloride as a battery core, the above substances were collected and processed after processing, you can get some useful substances. Its graphite rods are washed and dried and then used as electrodes.
2. Make zinc pellets. Stripped zinc shells after washing placed in a cast iron pot, heating and melting and insulation for 2 hours, remove the upper layer of slag, pour out and cool, drop on the iron plate, recycling sales of waste batteries to be solidified that is, zinc particles.
3. Recycling copper sheet. The copper cap spreading after washing with hot water, and then add a certain amount of 10% sulfuric acid boiled for 30 minutes to remove the surface oxidation layer, fish out and wash, dry that is the copper sheet.
4. Recovery of ammonium chloride. The black material into the cylinder, add 60oC of warm water stirring for 1 hour, so that all the ammonium chloride dissolved in water, static, filtration, washing slag 2 times, collect mother liquor; in the mother liquor vacuum distillation to the surface of the white crystal film appeared until the cooling, filtration of ammonium chloride crystals, mother liquor recycling.
5. Recycling of manganese dioxide. After filtration, the filter residue is washed 3 times, filtered, the filter cake is put into the pot to dry to remove a little carbon and other organic matter, and then put into the water for 30 minutes with full mixing, filtering, the filter cake is dried at 100-110oC, that is, the black manganese dioxide.
Recycling sales of used batteries into the environment, the human body to bring a series of teratogenic, carcinogenic, mutagenic and other hazards. And the heavy metals in the waste battery is a resource that can be used, so it is very important to resource treatment of waste batteries.
As the negative electrode zinc skin of used zinc - manganese batteries belongs to amphoteric metal, it is easy to react with water and corrosion perforation, resulting in the flow of heavy metals such as mercury in the electrolyte, contaminating the soil and groundwater. After cracking and sorting of recycling and selling waste batteries, after reduction roasting, leaching, net liquid, zinc and manganese electrolysis at the same time, 82% of the useful components of waste batteries can be recovered, of which the total recovery rate of zinc can reach more than 83%, the total recovery rate of manganese dioxide is about 82%, and the mercury-containing waste residue can be sent to specialized factories for treatment. This process can achieve considerable economic and environmental benefits.
Now the international lead price of 19,000 to 20,000 yuan a ton, recycled lead 99% purity of 17,000 a ton, waste batteries about 10,000 yuan a ton.
A 12v20ah battery, about 6.9 kilograms, of which lead accounts for about 4.8 kilograms. To produce a new battery, if you use virgin lead, you need 96 dollars of lead cost. If you use recycled lead about 92 yuan lead cost, but because there are some impurities, will affect the quality.
Lead refining recycling is relatively simple, because of the low melting point, but easy to produce pollution, the state now does not allow small workshops to recover lead. There are several large bases in the country, specializing in lead-acid battery lead recycling. Recently, Chaowei has begun to use recycled lead, and the introduction of their own website also said. In fact, by improving the smelting and purification technology, recycled lead can also be used.
I believe that everyone in the replacement of the battery did not think too much, the old battery to throw it away, or choose to be recycled directly. But the question is, do you really understand the value of your old battery that was eliminated? The old battery is not handled well, but not environmentally friendly and no gain, in fact, many times, the old battery by the waste recycling station welcome.
The value of the battery
I believe that many car owners know that the battery can be sold for money, but just listen to the owner of the recycling station said about five dollars per kilogram, and do not know the real price. According to a car battery's ordinary weight is about eighteen kilograms or so, probably is able to sell almost one hundred dollars, counting on going to the auto repair store to replace the new battery, that is, about seventy dollars, and can't pick what's wrong.
Batteries are recycled where to go
I believe that we will not know how the old batteries are recycled after the end, informed sources revealed that some repair points will be directly recycled old batteries, some of which is to let the recycling station when the recycling of waste products. But there is no thought, if these batteries fall into the hands of some ill-intentioned people, the consequences are also unimaginable.
Have you ever thought that some unscrupulous merchants will refurbish some old batteries, is it possible that we buy new batteries, may be refurbished? In fact, we do not have to worry about, because the waste battery itself is no service life, plus the waste battery can also sell a good price, so this is a high interest in low things, many people are also not willing to do.
Recycling of batteries
Because it is a battery, it is likely to pollute the environment, so the government needs to set up a special recycling point to recycle batteries, which facilitates the unified treatment of batteries, but also prevents environmental pollution.
First of all, look at the old battery pricesThe old battery recycling price list is based on the size of the battery capacity, whether maintenance-free to determine the general 40 non-maintenance-free battery recycling price of 80 to 150 or so, the old battery the latest recycling price is a group of three (36V10Ah and 12Ah a price) 108 yuan, a piece of 36 yuan, 4820Ah four, the recycling price of 230 yuan, can be calculated according to pounds! Calculated at 4.3 yuan per pound.
General capacity of 60 broken frame of the waste battery about 80 yuan, weighing 20 kilograms, and now charge the battery with a lead version of the recycling, according to this than the price of a ton of 4,000 yuan to 5,000 yuan. Now can be recycled to more than 4 yuan a catty, 12 Ⅴ 20AH a 14 pounds can be sold to 60 yuan, four can be sold to 240 yuan. Some recycling is to look at the size of the head, some are on the pound, the price is a little different.
Recycling
We recover the old battery will use advanced instruments for repair, is really the end of the battery, we will be given through the manufacturer specializing in recycling battery decomposition process, as far as I know, the formal recycling business will be broken down into several parts of the battery, the outside of the plastic shell recycling again, the internal lead can be back to the furnace refinery, the acid will be used to neutralize lye and after discharge, so that the battery is actually good for the environment. The acid will be neutralized with lye and then discharged, so that the battery's actual harm to the environment will not be as great as we think. On the contrary, we usually use 5 # \\ 7 # batteries, no recycling value, there is no special recycling site, in the process of our randomly discarded contaminated land and water. This is more for us to think y about the problem.
Recycling, the lead plates inside, after desulfurization treatment, and then the furnace, can be used from new to new batteries inside.
One is refurbished, and the other is sold for zinc!
Electric car repair stores and other recycling of waste batteries are generally sold directly to the battery manufacturer, the production of batteries, the enterprise will be on the waste battery refining some of the resources can be reused.
Like Tennant Battery currently has two lead battery recycling bases in East China and North China, the East China recycling base located in Changxing, Zhejiang Province has obtained the only license for recycling and processing of used batteries in Zhejiang Province, which can process 150,000 tons of old batteries per year, and the North China recycling base located in Puyang, Henan Province has started trial production in 2015, with a capacity of 100,000 tons of old batteries per year. The battery treatment process is environmentally friendly and non-polluting, with a lead recovery rate of up to 99%, and near-zero emissions of waste.
Since he said he would guarantee 50 kilometers when you bought it, ask him to give you a battery that can run 50 kilometers. General lead-acid batteries can not be so test, because the battery electricity once used up the capacity of the battery will drop a lot, many times to run to remember to recharge the battery is almost scrapped. You still go to a reputable store to buy a high-priced battery cost-effective, miscellaneous cottage and refurbished are not durable and safety addictions, some of the lead plate made into a fine sand mesh, the new use of current and voltage can be used, and soon the storage of electricity declined, and some of the internal disconnection. This battery is relatively light, but also useful glass or even cement added to the center to increase the weight. Waste batteries, some people put a good refurbishment of the blind, can not be repaired by refining into a lead block to re-do the new one.
The first thing is to understand what material the battery is made of. The car battery with the kind of steam water, commonly known as water battery, that is, lead storage batteries. Lead is not a precious metal, but it's a lot more expensive than aluminum, and it's still used to make lead after recycling.
It is important to note that in addition to lead and water, there is sulfuric acid, which is the strongest acid, and is strongly corrosive.
Ordinary electric car batteries are also mostly lead storage batteries, and car batteries are only less vaporized water, lithium batteries due to the more expensive, with less.
Because lead is harmful to human beings, the state prohibits private recycling and smelting.
Lead-acid batteries have recycling value, recycling price is obviously higher than the price of lithium batteries. As long as there are people recycling, it means that there is a certain amount of profit in this thing, recycling batteries previously counted on the cold recycling industry, profits are much higher than other metal recycling.
A lead-acid battery can be sold after the end of the original battery purchase price of 30% -40% or so, which is still the price of mobile recycling vendors. Terminal purchase price will be higher, I know two pairs of Anhui recycling battery couple, they are a year out. Early to open a four-wheeled agricultural vehicles now open 6.8 trucks, husband and wife specializing in the recovery of old batteries, go to various brick factories, plate factories, whereabouts throughout the north. You think about it, hundreds of thousands of kilometers to collect batteries, not enough profit support how possible. They have to run hundreds of kilometers every day, when to collect a car full of batteries before going back. Of course not directly back to Anhui, they have a site near the provincial capital specifically to store batteries. The first thing you need to do is to get your hands on a car and send it back, so that you have a lower freight cost and a bigger profit.
When you ship a battery, you can't take the acid with you, but how do you deal with the acid from thousands of batteries? The centralized treatment is obviously not possible, involving costs, harmless treatment costs are too high. What to do? Dispose of it locally by weighing the collected batteries with water and then pouring it out with the lid open anywhere. Acid poured on the ground after the soil will foam, environmental pollution is immeasurable, or go halfway to the wilderness without people in the field to pour the acid.
How to deal with the battery when you send it back home? It is very simple, disassembly. The main component of the battery is the metal lead, the plastic shell directly smashed, the pole plate out.
Shell can do particles, recycled material, flower material, pole plate directly melt, after all, battery manufacturers do battery is the need for lead ingots. If it is environmentally friendly manufacturers will do a series of harmless dismantling, but in order to maximize profits many dismantling plants are random dismantling, without any environmental protection equipment, random rows of pollution exceeding the standards of smoke, random rows of wastewater containing heavy metal pollution, and direct damage to the environment.
The finished product of battery dismantling and refining is as follows:
This is the lead ingot, which can be used to make the pole plate of the battery, and is the main raw material of battery manufacturers. At present, the lead ingot per ton offer in about 14,000 yuan, waste battery clay refining lead ingot is very simple, so many people are desperate to engage in the illegal dismantling of batteries refining lead line of work, seriously damaged the local environment.
After recycling, the metal zinc inside can be recycled, and the shell you can reuse.