Waste lithium batteries contain a large number of non-renewable and high economic value of heavy metal resources, lithium batteries in the positive electrode sheet material for lithium cobalt cobalt oxide powder, negative electrode sheet material for graphite powder, whether the positive electrode sheet or the negative electrode sheet contains a large number of cobalt, nickel, manganese, copper, aluminum and other metal materials; if you can effectively recycle the disposal of discarded or unqualified lithium batteries, not only to reduce the pressure of the waste batteries on the environment, but also to avoid the creation of Cobalt, nickel, manganese and other heavy metal resources are wasted; therefore, due to resource constraints and the need to manage the environment, countries around the world have attached great importance to the recycling of waste lithium batteries.     

In the process of waste lithium battery recycling and treatment, the main use of dry recycling technology and wet recycling technology, of which the wet recycling technology process route is long, large investment, equipment, can not be recovered in which the metal aluminum, and wet process can not dispose of lithium batteries in the PVDF; dry recycling technology is mainly divided into high-temperature (∼800 ℃) dry and low-temperature (∼400 ℃) dry technology, dry recycling technology, dry recycling technology, the route is short, Less equipment, can effectively deal with the PVDF, but high energy consumption, need to consume a lot of heat, dry processing shall produce acidic gas HF (or other hydrogen halide gas) and organic cracking exhaust, need to be treated separately, otherwise the environmental impact on the environment, the environmental protection facilities of the investment is huge; lithium battery recycling and processing equipment, including dismantling line (ladder reuse) ＋ grinding grinding and crushing wind line ＋ extracting (counter-extracting) production line, of which Grinding and crushing line (i.e. pulverizing line) is the most important, waste lithium batteries pulverizing line is the key to lithium battery recycling and processing equipment, but many domestic manufacturers are still applying the process of a certain place, i.e., shredding + secondary crushing, grinding + wind selection (purchased from high school temperature furnace), did not solve the flammable and explosive problem of the waste lithium batteries charged from the source, and the cost of processing is close to 3,000.00 yuan / ton, we cite the homegrown High temperature pyrolysis furnace feed part of the design of frequency conversion speed control and the formation of high-temperature vacuum belt, a fundamental solution to the shredder of the fire and explosion-proof problem, and a substantial reduction in paper equipment and its production and operating costs, this unique process of lithium battery recycling and processing equipment production line due to the non-use of nitrogen and other oxygen-insulating body, thereby substantially reducing the production and equipment operating costs!

1. Waste lithium battery recycling and treatment system, including waste lithium battery recycling and treatment device and exhaust gas treatment device, waste lithium battery recycling and treatment device including lithium battery recycling pre-treatment shredding device, pyrolysis device, lithium battery recycling post-processing (including secondary crushing and grinding and wind selection equipment) device connected in turn; pyrolysis device including pyrolysis furnace and frequency conversion air volume control device, connected in turn to the production of pre-processing device, Dry rotary furnace integration, post-treatment device, dry rotary furnace firing exhaust port three-dimensional connection pre-treatment shredding device outlet and production of environmental protection devices; pyrolysis furnace cracking exhaust gas outlet and environmental protection devices; in addition to solve the problem of waste lithium batteries dry recycling treatment of high energy consumption, this complete set of equipment also adopts the following preferred way: the pyrolysis device also includes an external heat exchanger, the external heat exchanger is mounted in the pyrolysis furnace outside; the external heat exchanger air inlet connects the environmental protection device; the external heat exchanger air inlet connects the environmental protection device. The air inlet of the heat exchanger is connected to the high-temperature flue gas discharge port of the environmental protection device; the connecting pipeline between the cracking exhaust gas outlet of the pyrolysis furnace and the dry process rotary furnace is equipped with an insulating sleeve; one of the branch pipes is connected to the air inlet of the external heat exchanger, and a flow adjustment device is provided for the branch pipe at the high-temperature flue gas discharge port; the exhaust gas generated by the dry process rotary furnace enters into the external heat exchanger of the pyrolysis device through the high-temperature flue gas discharge port of the environmental protection device and the connecting pipeline, and is used as a pyrolysis agent. The waste gas from the dry process converter enters the external heat exchanger of the pyrolysis device through the high-temperature flue gas discharge port of the environmental protection device and the connecting pipeline, and is used as the heat source of the pyrolysis furnace.

2. The purpose of equipping the high-temperature flue gas discharge port with a flow regulating device is to control the air volume of the high-temperature flue gas into the branch pipe through the flow regulating device, and then control the temperature of the high-temperature flue gas into the inlet of the external heat exchanger in the range of 400℃~1000℃, and preferably control the temperature of the high-temperature flue gas into the inlet of the external heat exchanger in the range of 500℃~650℃. And the formation of a vacuum belt, so that the shredder and pyrolysis furnace oxygen isolation operation, from the source to solve the lithium battery recycling and treatment of fire and explosion-proof problems; and waste lithium batteries torn by the shredder through the pyrolysis furnace entrance to the furnace on waste lithium batteries contained in the organic matter pyrolysis treatment; pyrolysis furnace in the waste lithium batteries contained in the binder PVDF, lithium hexafluorophosphate and organic solvents by the thermal decomposition of cracking waste gas; cracking waste gas by combustion ultimately produce carbon dioxide, lithium hexafluorophosphate, and organic solvent; cracking waste gas by combustion ultimately produce carbon dioxide, carbon dioxide, and organic solvent by the heat of the furnace. Cracking exhaust gas by combustion ultimately produces carbon dioxide, water, HF and other gases; due to the exhaust gas treatment device nano-sized calcium oxide has a very high activity at working temperature, can be quickly combined with HF to generate calcium fluoride, so HF will not enter the atmosphere, the same reason the rest of the hydrogen halide gas is generated by the calcium halide, and other carbon dioxide and water by the production of cement environmental protection equipment after conventional treatment to meet the standards of discharge