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CN-224208038-U - Graphite particle manufacturing system

CN224208038UCN 224208038 UCN224208038 UCN 224208038UCN-224208038-U

Abstract

The utility model provides a graphite particle manufacturing system, which comprises a reaction kettle, a combustion assembly, a gas-solid separator, an air inlet pipe and an exhaust pipe, wherein the reaction kettle comprises an outer shell and an inner shell, at least one part of the inner shell is arranged in the outer shell, a heating cavity is formed between the inner shell and the outer shell, the inner shell is used for accommodating reaction materials, the combustion assembly comprises a combustor and a combustion chamber arranged on one side of the combustor, the combustor is used for providing combustion gas for the combustion chamber, the combustion chamber is communicated with an air inlet of the heating cavity through the air inlet pipe, an air outlet of the heating cavity is communicated with the combustor and an exhaust gas treatment device through the exhaust pipe, an inlet end of the gas-solid separator is communicated with the inside of the inner shell and is used for collecting volatile matters in the reaction materials, and a gas output end of the gas-solid separation is communicated with the combustor. The graphite particle manufacturing system can solve the problems of low heating efficiency and energy waste of the graphite particle manufacturing system in the prior art.

Inventors

  • HUANG HELING
  • CUI LEXIANG
  • LING WEIXING
  • YANG HONGQIANG
  • HUANG YOUYUAN
  • HE XUEQIN

Assignees

  • 贝特瑞新材料集团股份有限公司

Dates

Publication Date
20260508
Application Date
20250424

Claims (10)

  1. 1. A graphite particle manufacturing system, comprising: The reaction kettle (10) comprises an outer shell (110) and at least one part of an inner shell (120) arranged inside the outer shell (110), a heating cavity (101) is formed between the inner shell (120) and the outer shell (110), and the inner shell (120) is used for accommodating reaction materials; A combustion assembly (30) comprising a burner (310) and a combustion chamber (320) arranged on one side of the burner (310), the burner (310) being adapted to provide combustion gas to the combustion chamber (320); An air inlet pipe (40) and an air outlet pipe (50), wherein the combustion chamber (320) is communicated with an air inlet of the heating cavity (101) through the air inlet pipe (40) and is used for providing high-temperature gas to heat the inner shell (120), and an air outlet of the heating cavity (101) is communicated with the burner (310) and the tail gas treatment device (60) through the air outlet pipe (50); And the inlet end of the gas-solid separator (80) is communicated with the inside of the inner shell (120) and is used for collecting volatile matters in the reaction materials, and the gas output end of the gas-solid separator is communicated with the burner (310).
  2. 2. The graphite particle production system according to claim 1, wherein, in the height direction of the reaction kettle (10), an air inlet of the heating chamber (101) is provided at the bottom end of the outer case (110), an air outlet of the heating chamber (101) is provided at the top end of the outer case (110), and the reaction kettle (10) further comprises: A partition plate (20) disposed inside the heating chamber (101), wherein the partition plate (20) divides the heating chamber (101) into an upper space (1011) and a lower space (1012) along the height direction of the reaction kettle (10), the air inlet is communicated with the lower space (1012), and a plurality of air inlets are disposed on the partition plate (20) at intervals along the circumferential direction of the partition plate (20); Swirl tube (210), set up in the top surface of baffle (20), swirl tube (210) with the setting of air gap one-to-one, swirl tube (210) set up in the outer fringe of air gap and with the air gap intercommunication, high temperature gas flow through a plurality of behind swirl tube (210) the inside in upper space (1011) forms along the circumference of inner shell (120) and towards the hot-blast whirl that the gas outlet flows.
  3. 3. The graphite particle manufacturing system of claim 2, wherein the cyclone tube (210) comprises: A guide pipe wall (211), wherein a first end of the guide pipe wall (211) is connected with the partition plate (20), the first end of the guide pipe wall (211) is arranged at the outer edge of one end of the air passing opening along the circumferential direction of the partition plate (20), and a second end of the guide pipe wall (211) extends towards the top side of the outer shell (110) and towards one side of the air passing opening; The side pipe walls are arranged on two sides of the guide pipe wall (211), one ends of the two side pipe walls are connected with the guide pipe wall (211), and the other ends of the two side pipe walls are arranged at intervals to form guide openings (212).
  4. 4. The graphite particle manufacturing system according to claim 3, wherein, The air-passing opening is arranged in the projection of the guide pipe wall (211) on one side of the baffle plate (20), and/or Two of the side tube walls are symmetrically arranged, and/or The connection line between the side pipe wall and the center of the circle where the partition board (20) is located is perpendicular to the extending direction of the side pipe wall, and/or An included angle A is formed between the guide pipe wall (211) and the partition board (20), and the included angle A is more than or equal to 30 degrees and less than or equal to 60 degrees, and/or The distance between the partition (20) and the bottom surface of the outer housing (110) is smaller than the distance between the partition (20) and the top surface of the outer housing (110).
  5. 5. The graphite particle manufacturing system of claim 1, wherein the combustion assembly (30) further comprises: -a natural gas pipe (1110), the natural gas pipe (1110) being in communication with the burner (310) for providing natural gas; a first control valve provided to the natural gas pipe (1110); A first pressure detecting member (1130) and a first flow detecting member (1140) provided on the natural gas pipe (1110); an air tube (1120), said air tube (1120) being in communication with said burner (310) for providing air; a first fan (1150) disposed on the air pipe (1120); A second pressure detecting member (1160) and a second flow rate detecting member (1170) provided on the air tube (1120); And the controller is in signal connection with the first control valve, the first pressure detection piece (1130), the first flow detection piece (1140), the first fan (1150), the second pressure detection piece (1160) and the second flow detection piece (1170).
  6. 6. The graphite particle manufacturing system of claim 1, wherein the combustion assembly (30) further comprises: An igniter provided inside the burner (310); A flame detector provided inside the burner (310); A display disposed on an outer surface of the outer housing (110); A fourth pressure detecting element (1180) and a first temperature detecting element (1190) arranged on the intake pipe (40); And a controller in signal connection with the display, the igniter, the flame detector, a fourth pressure detector (1180), and a fourth flow detector (1420).
  7. 7. The graphite particle manufacturing system according to claim 1, wherein a first end of the exhaust pipe (50) communicates with an air outlet of the heating chamber (101), and a second end of the exhaust pipe (50) forms a first conduit (510) communicating with the burner (310) and a second conduit (520) communicating with the exhaust gas treatment device (60), the graphite particle manufacturing system further comprising: A second fan (1230), the second fan (1230) being disposed on the first end of the exhaust pipe (50); A fifth pressure detecting member (1210) and a second temperature detecting member (1220) both provided on the first end of the exhaust pipe (50); An oxygen content detector (1240) disposed on a first end of the exhaust pipe (50); A second control valve (1270) disposed on said first pipe (510); A sixth pressure detecting member (1250) and a third temperature detecting member (1260) both disposed on the first pipe (510); and a third control valve arranged on the second pipeline (520).
  8. 8. The graphite particle production system of claim 1, characterized in that the graphite particle manufacturing system further comprises: A discharge pipe (70), wherein one end of the discharge pipe (70) is communicated with a discharge hole at the top end of the inner shell (120), and the other end of the discharge pipe (70) is communicated with the gas-solid separator (80); a first heat preservation structure (1310), wherein the first heat preservation structure (1310) is sleeved on the discharge pipe (70); The seventh pressure detecting member (1280) and the fourth temperature detecting member (1290) are both disposed on the discharge pipe (70).
  9. 9. The graphite particle manufacturing system of any one of claims 1 to 8, further comprising: A gas return pipe (90), one end of the gas return pipe (90) is communicated with the gas output end of the gas-solid separation, and the other end of the gas return pipe (90) is communicated with the burner (310); a third fan (1320) provided to the gas return pipe (90); The second heat preservation structure (1330) is sleeved on the gas return pipe (90); A third pressure detecting member (1340), a fifth temperature detecting member (1350), a volatile concentration detecting member (1360), and a third flow rate detecting member (1370) provided on the gas return pipe (90); And a fourth control valve (1380) provided on the gas return pipe (90) and provided at an end of the gas return pipe (90) close to the burner (310).
  10. 10. The graphite particle manufacturing system of any one of claims 1 to 8, further comprising: A feeding machine (1390) arranged at one side of the outside of the reaction kettle (10), wherein the feeding machine (1390) is communicated with a feeding hole at the top end of the inner shell (120) and is used for providing reaction materials, and/or A nitrogen supplementing pipe (1410) and a fourth flow detecting member (1420), wherein the end part of the nitrogen supplementing pipe (1410) is communicated with the inner shell (120), the fourth flow detecting member (1420) is arranged on the nitrogen supplementing pipe (1410), and/or The temperature sensors are arranged on the inner shell (120) at intervals along the circumferential direction and the height direction of the inner shell (120).

Description

Graphite particle manufacturing system Technical Field The utility model relates to the technical field related to graphite particles, in particular to a graphite particle manufacturing system. Background The electric new energy automobile is a future development direction of the automobile market, and the core component of the electric new energy automobile is a lithium ion battery. As battery regulations are promulgated and implemented, the ESG (Social and Governance) concept has become a generally accepted standard and general language, and society is focusing on products conforming to the ESG concept, and the technical field of negative electrode materials as environment-friendly materials conforms to the ESG concept, and thus, there is a greater demand for negative electrode materials and production thereof. In the production process of the artificial graphite material, a granulating process is a crucial step and is used for improving the performance of the graphite material, so that the artificial graphite material is more suitable for the application fields such as batteries and the like. In the granulating process of artificial graphite materials, conventional granulating equipment such as rotary kilns, VC granulating kettles, horizontal granulating kettles, roller furnaces and the like can realize continuous or intermittent production, and meet the specific requirements of different products, but the problem of excessively high energy consumption generally exists. Taking a VC granulator as an example, in the process of producing artificial graphite, the mixture of asphalt and petroleum coke is heated to a temperature ranging from 550 ℃ to 750 ℃ required for granulation by means of external resistance heating, in the process, the ton electricity consumption can be as high as 375 kWh to 460kWh, and considering that the efficiency of converting electric energy into heat energy is about 80%, this means that a large amount of energy sources are already lost before being converted into effective heat energy, and the cost is significantly increased. Further analysis, the artificial graphite granulating equipment and process in the prior art, such as a VC granulating kettle, can realize continuous or intermittent production of a granulating process, but has low energy utilization efficiency, mainly comprises the following two aspects that firstly, under an electric heating mode, the electric energy consumed in the granulating process of each ton of artificial graphite is far more than actually required due to the efficiency loss of electric energy conversion into heat energy, the production cost is directly increased, and secondly, volatile matters generated in the granulating process are easily discharged or treated due to the lack of effective recycling and utilization mechanisms although carrying a large amount of potential heat energy, and cannot be converted into actual production benefits, so that the energy consumption is caused. From the above, the graphite particle manufacturing system in the prior art has problems of low heating efficiency and energy waste. Disclosure of utility model The utility model mainly aims to provide a graphite particle manufacturing system which solves the problems of low heating efficiency and energy waste in the graphite particle manufacturing system in the prior art. In order to achieve the above object, according to one aspect of the present utility model, there is provided a graphite particle manufacturing system comprising a reaction vessel including an outer casing and an inner casing at least a portion of which is provided inside the outer casing, a heating chamber being formed between the inner casing and the outer casing, the inner casing being for accommodating a reaction material, a combustion assembly including a burner and a combustion chamber provided at one side of the burner, the burner being for supplying combustion gas to the combustion chamber, an intake pipe and an exhaust pipe, the combustion chamber being in communication with an intake port of the heating chamber through the intake pipe for supplying high-temperature gas to heat the inner casing, an exhaust port of the heating chamber being in communication with the burner and an exhaust gas treatment device through the exhaust pipe, a gas-solid separator having an inlet end in communication with an inside of the inner casing for collecting volatile components in the reaction material, and a gas output end of the gas-solid separator being in communication with the burner. Further, the air inlet of the heating cavity is arranged at the bottom end of the outer shell body along the height direction of the reaction kettle, the air outlet of the heating cavity is arranged at the top end of the outer shell body, the reaction kettle further comprises a partition plate, the partition plate is arranged inside the heating cavity, the heating cavity is divided into an upper space and a lower space along the