Jet mill for lithium battery processing

Abstract

The utility model relates to a jet mill for lithium battery processing, which belongs to the field of lithium battery production equipment and is characterized in that a first filter is arranged between a gas storage tank and a drying machine of the jet mill for lithium battery processing, and a second filter and a third filter are arranged between the drying machine and a jet mill, so that the cleanliness of gas for jet milling can be effectively ensured; and a water inlet pipe and an atomizing nozzle are arranged in the dust remover, spraying dust removal is carried out, residual dust in discharged gas meets the standard, the crushing effect can be effectively guaranteed, and meanwhile pollution is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the field of lithium battery production equipment, and specifically relates to an air flow pulverizer for processing lithium batteries. Background Art

[0002] Powdered materials are the main raw materials for lithium battery processing. Powdered raw materials for lithium battery processing are composed of metal elements such as lithium, cobalt, nickel and a variety of inorganic compounds; the proportion and quality of these elements and compounds have a great influence on the performance and life of lithium batteries. Usually, lithium cobalt oxide is used in the positive electrode of lithium batteries, and carbon materials are used in the negative electrode; the main sources of lithium battery powder raw materials are lithium, cobalt, nickel and other metal elements extracted from minerals; lithium can be extracted from lithium ores such as spodumene, malachite and tremolite. Cobalt and nickel can be extracted from minerals such as chalcopyrite and chlorite. Because the abundance of metal elements such as lithium, cobalt and nickel is not high, their extraction process usually requires a series of chemical reactions and physical treatments. Crushing operations are a necessary step in the processing of lithium battery processing raw materials;

[0003] The air flow mill, cyclone separator, dust collector and induced draft fan form a complete set of pulverizing system. After being filtered and dried, the compressed air is sprayed into the pulverizing chamber at high speed through the Laval nozzle. At the intersection of multiple high-pressure airflows, the material is repeatedly collided, rubbed, sheared and pulverized. The pulverized material moves to the classification area with the rising airflow under the suction force of the fan. Under the strong centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated. The fine particles that meet the particle size requirements enter the cyclone separator and dust collector for collection through the classification wheel, and the coarse particles fall to the pulverizing area for further pulverization; it is suitable for the pulverization operation of lithium battery processing raw materials.

[0004] Patent No. CN201921719431.8 discloses an airflow pulverizer with a cooling function, which includes a base and a water pump; an airflow pulverizer is provided on the left side of the upper surface of the base, a cooling water tank is provided on the right side of the airflow pulverizer, and a cooling water jacket is provided on the outer side of the airflow pulverizer; the water pump is placed on the right inner wall of the cooling water tank. An ice-throwing port is provided through the left side of the top of the cooling water tank. When the temperature is low in summer, ice cubes can be thrown into the cooling water tank through the ice-throwing port, which can quickly reduce the temperature of the cooling water and improve the heat absorption effect of the cooling water jacket. This technology limits the cooling mechanism of the pulverizer, but the cleanliness of the drying gas of the airflow pulverizer, including the dust removal effect after airflow drying, is also crucial to the actual production effect. Utility Model Content

[0005] In order to overcome the problems existing in the background technology, the utility model discloses a lithium battery processing air flow pulverizer, a first filter is arranged between the gas storage tank and the dryer of the lithium battery processing air flow pulverizer, a second multi-filter and a third filter are arranged between the dryer and the air flow mill, which can effectively ensure the cleanliness of the gas used for air flow pulverization and will not cause pollution to the pulverized material, a water inlet pipe and an atomizing nozzle are arranged inside the dust collector for spray dust removal, and the residual dust in the discharged gas meets the standard, which can effectively ensure the pulverization effect and effectively avoid pollution.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] The lithium battery processing air flow mill comprises: an air compressor, a first connecting pipe, an air storage tank, a second connecting pipe, a first filter, a dryer, a third connecting pipe, a second filter, a fourth connecting pipe, a third filter, a fifth connecting pipe, an air flow mill, a sixth connecting pipe, a cyclone separator, a seventh connecting pipe, a dust collector, an eighth connecting pipe, an air outlet pipe, and a fan;

[0008] The air compressor is connected to the air storage tank through a first connecting pipe, the air storage tank is connected to the first filter through a second connecting pipe, the first filter is connected to the dryer through a third connecting pipe, the dryer is connected to the second filter through a fourth connecting pipe, the second filter is connected to the third filter through a fifth connecting pipe, the third filter is connected to the air flow mill through a sixth connecting pipe, the air flow mill is connected to the cyclone separator through a seventh connecting pipe, the cyclone separator is connected to the dust collector through an eighth connecting pipe, and the air outlet pipe on the top of the dust collector is connected to a fan.

[0009] As a preferred embodiment, it comprises: a hopper and a feed pipe; the feed pipe is arranged on the side of the jet mill, and the feed port is connected to the feed pipe.

[0010] As a preference: it comprises: a lower diverter pipe and a side diverter pipe; one end of the lower diverter pipe is connected to the sixth connecting pipe, and the other end is connected to the air flow mill; one end of the side diverter pipe is connected to the lower diverter pipe, and the other end is connected to the feed pipe.

[0011] As a preference: comprising: a bottom recovery pipe; a bottom recovery pipe is provided at the bottom of the first filter, the second filter and the third filter.

[0012] As a preference, it comprises: a first filter screen and a second filter screen; the first filter screen is arranged inside the first filter, the second filter screen is arranged inside the second filter, and the second filter has the same structure as the first filter.

[0013] As a preference: comprising: a first recovery trolley and a second recovery trolley; the first recovery trolley is arranged below the cyclone separator, the second recovery trolley is arranged below the dust collector, and a side recovery pipe is arranged on the side of the second recovery trolley.

[0014] As a preferred embodiment, it comprises: a water inlet pipe, an atomizing nozzle, and a partition net; the water inlet pipe is arranged on the side of the dust collector, the atomizing nozzle is connected to the water inlet pipe, and the partition net is arranged inside the dust collector.

[0015] Preferably, it comprises a shunt pipe, and the shunt pipe is arranged on the top of the dust collector.

[0016] As a preference, it comprises: an inner bin body, an air bin, a Laval nozzle, and a driving motor; the air bin is arranged below the inner bin body, the Laval nozzle is arranged at the bottom of the inner bin body, and the driving motor is arranged at the side of the inner bin body.

[0017] The beneficial effects of the utility model are as follows: a first filter is arranged between the gas storage tank and the dryer of the lithium battery processing air flow mill, and a second multi-filter and a third filter are arranged between the dryer and the air flow mill, which can effectively ensure the cleanliness of the gas used for air flow crushing and will not cause pollution to the crushed material. A water inlet pipe and an atomizing nozzle are arranged inside the dust collector for spray dust removal. The residual dust in the discharged gas meets the standard, which can effectively ensure the crushing effect and effectively avoid pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 is a schematic structural diagram of a first filter;

[0020] Figure 3 is a schematic structural diagram of a second filter;

[0021] Figure 4 It is a schematic diagram of the structure of the dust collector;

[0022] Figure 5 It is the structural diagram of the air flow mill.

[0023] In the figure, 1-air compressor, 2-first connecting pipe, 3-gas storage tank, 4-second connecting pipe, 5-first filter, 6-third connecting pipe, 7-dryer, 8-fourth connecting pipe, 9-second filter, 10-fifth connecting pipe, 11-third filter, 12-sixth connecting pipe, 13-lower shunt pipe, 14-side shunt pipe, 15-air flow mill, 16-hopper, 17-feed pipe, 18-seventh connecting pipe, 19-cyclone separator, 2 0-eighth connecting pipe, 21-first recovery trolley, 22-dust collector, 23-water inlet pipe, 24-air outlet pipe, 25-fan, 26-second recovery trolley, 27-side recovery pipe, 28-first discharge pipe, 29-second discharge pipe, 30-bottom recovery pipe, 31-first filter screen, 32-second filter screen, 33-atomizing nozzle, 34-partition screen, 35-inner warehouse body, 36-air warehouse, 37-Laval nozzle, 38-driving motor. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objectives, technical solutions and beneficial effects clearer, the present invention is described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5As shown, the lithium battery processing air flow mill comprises: an air compressor 1, a first connecting pipe 2, an air storage tank 3, a second connecting pipe 4, a first filter 5, a third connecting pipe 6, a dryer 7, a fourth connecting pipe 8, a second filter 9, a fifth connecting pipe 10, a third filter 11, a sixth connecting pipe 12, a lower shunt pipe 13, a side shunt pipe 14, an air flow mill 15, a hopper 16, a feed pipe 17, a seventh connecting pipe 18, a cyclone separator 19, an eighth connecting pipe 20, a first recovery trolley 21, a dust collector 22, a water inlet pipe 23, an air outlet pipe 24, a fan 25, a second recovery trolley 26, a side recovery pipe 27, a first discharge pipe 28, a second discharge The material pipe 29, the bottom recovery pipe 30, the first filter 31, the second filter 32, the atomizing nozzle 33, the partition 34, the inner bin body 35, the gas bin 36, the Laval nozzle 37, and the driving motor 38; the air compressor 1 is connected to the gas storage tank 3 through the first connecting pipe 2, the gas storage tank 3 is connected to the first filter 5 through the second connecting pipe 4, the first filter 5 is connected to the dryer 7 through the third connecting pipe 6, the dryer 7 is connected to the second filter 9 through the fourth connecting pipe 8, the second filter 9 is connected to the third filter 11 through the fifth connecting pipe 10, the third filter 11 is connected to the air flow mill 15 through the sixth connecting pipe 12, and the air flow mill 15 is connected to the air flow mill 15 through the seventh connecting pipe 8. The connecting pipe 18 is connected to the cyclone separator 19, and the cyclone separator 19 is connected to the dust collector 22 through the eighth connecting pipe 20. The air outlet pipe 24 at the top of the dust collector 22 is connected to the fan 25. The feed pipe 17 is arranged on the side of the air flow mill 15, and the material port is connected to the feed pipe 17. One end of the lower diverter pipe 13 is connected to the sixth connecting pipe 12, and the other end is connected to the air flow mill 15. One end of the side diverter pipe 14 is connected to the lower diverter pipe 13, and the other end is connected to the feed pipe 17. The bottoms of the first filter 5, the second filter 9, and the third filter 11 are all provided with a bottom recovery pipe 30. The first filter screen 31 is arranged inside the first filter 5. The second filter screen 32 is arranged inside the second filter 9, and the second filter 9 has the same structure as the first filter 9. The first recovery cart 21 is arranged below the cyclone separator 19, and the second recovery cart 26 is arranged below the dust collector 22. A side recovery pipe 27 is arranged on the side of the second recovery cart 26. The water inlet pipe 23 is arranged on the side of the dust collector 22, and the atomizing nozzle 33 is connected to the water inlet pipe 23. The partition net 34 is arranged inside the dust collector 22, and the diverter pipe is arranged at the top of the dust collector 22. The gas warehouse 36 is arranged below the inner warehouse body 35, the Laval nozzle 37 is arranged at the bottom of the inner warehouse body 35, and the drive motor 38 is arranged on the side of the inner warehouse body 35.

[0026] A first filter 5 is arranged between the gas storage tank 3 and the dryer 7 of the lithium battery processing air flow mill, and a second multi-filter and a third filter 11 are arranged between the dryer 7 and the air flow mill 15, which can effectively ensure the cleanliness of the gas used for air flow milling and will not cause pollution to the crushed material. The air flow mill 15 is a closed-loop circulation air flow mill 15, and the inner bin 35 and the air bin 36 constitute the main body of the air flow mill 15. The inner bin 35 is located at the bottom of the gas bin 36 and is connected with multiple Laval nozzles 37. After the air flow treated by the filter enters the gas bin 36, it is sprayed into the inner bin 35 at high speed from the multiple Laval nozzles 37, and the material entering the inner bin 35 is cleaned. The gas flow is operated to crush the materials, and the qualified materials enter the cyclone dust collector 22 for separation. The separated materials are recovered from the first recovery trolley 21. The gas floating up from the cyclone separator 19 enters the dust collector 22 for dust removal. The dust collector 22 is provided with a water inlet pipe 23 and an atomizing nozzle 33 for spray dust removal. The gas after dust removal floats up and is led out through the fan 25. The residual dust in the led-out gas meets the standard, which can effectively ensure the crushing effect and effectively avoid pollution. The liquid after spray dust removal in the dust collector 22 is recovered to the second recovery trolley 26. A side recovery pipe 27 is provided on the side of the second recovery trolley 26 to recycle the liquid.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A lithium battery processing airflow pulverizer, characterized in that: include: Air compressor, first connecting pipe, air storage tank, second connecting pipe, first filter, dryer, third connecting pipe, second filter, fourth connecting pipe, third filter, fifth connecting pipe, air flow mill, sixth connecting pipe, cyclone separator, seventh connecting pipe, dust collector, eighth connecting pipe, air outlet pipe, fan; The air compressor is connected to the air storage tank through a first connecting pipe, the air storage tank is connected to the first filter through a second connecting pipe, the first filter is connected to the dryer through a third connecting pipe, the dryer is connected to the second filter through a fourth connecting pipe, the second filter is connected to the third filter through a fifth connecting pipe, the third filter is connected to the air flow mill through a sixth connecting pipe, the air flow mill is connected to the cyclone separator through a seventh connecting pipe, the cyclone separator is connected to the dust collector through an eighth connecting pipe, and the air outlet pipe on the top of the dust collector is connected to a fan.

2. A lithium battery processing airflow pulverizer according to claim 1, characterized in that: include: A hopper and a feed pipe; the feed pipe is arranged on the side of the air flow mill, and the feed port is connected to the feed pipe.

3. A lithium battery processing airflow pulverizer according to claim 2, characterized in that: include: A lower shunt pipe and a side shunt pipe; one end of the lower shunt pipe is connected to the sixth connecting pipe, and the other end is connected to the airflow mill; one end of the side shunt pipe is connected to the lower shunt pipe, and the other end is connected to the feed pipe. According to the lithium battery processing airflow pulverizer as described in claim 1, it is characterized by comprising: Bottom recovery pipe: The bottoms of the first filter, the second filter and the third filter are all provided with bottom recovery pipes.

4. A lithium battery processing airflow pulverizer according to claim 1, characterized in that: include: A first filter screen and a second filter screen; the first filter screen is arranged inside the first filter, the second filter screen is arranged inside the second filter, and the second filter has the same structure as the first filter.

5. A lithium battery processing airflow pulverizer according to claim 1, characterized in that: include: A first recovery trolley and a second recovery trolley; the first recovery trolley is arranged below the cyclone separator, the second recovery trolley is arranged below the dust collector, and a side recovery pipe is arranged on the side of the second recovery trolley.

6. A lithium battery processing airflow pulverizer according to claim 1, characterized in that: include: A water inlet pipe, an atomizing nozzle, and a partition net; the water inlet pipe is arranged on the side of the dust collector, the atomizing nozzle is connected to the water inlet pipe, and the partition net is arranged inside the dust collector.

7. A lithium battery processing airflow pulverizer according to claim 1, characterized in that: include: The shunt pipe is arranged at the top of the dust collector.

8. A lithium battery processing airflow pulverizer according to claim 1, characterized in that: include: Inner chamber, air chamber, Laval nozzle, drive motor; The gas bin is arranged below the inner bin body, the Laval nozzle is arranged at the bottom of the inner bin body, and the driving motor is arranged at the side of the inner bin body.

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