Negative electrode material roaster temperature gradient control mechanism

By designing a temperature gradient control system for the negative electrode material roasting furnace, and using a cyclone separator and filter screen system to separate and recover solid particles in the furnace exhaust gas, the environmental pollution and raw material waste caused by direct exhaust gas emission are solved, thereby improving production efficiency and equipment stability.

CN224353557UActive Publication Date: 2026-06-12NANJING GUOYAN ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING GUOYAN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-05-09
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing anode material roasting furnace generates dusty exhaust gas during the high-temperature roasting process, which directly causes environmental pollution and wastes raw materials, and it is difficult to achieve precise control of the temperature gradient.

Method used

Design a temperature gradient control body for a negative electrode material roasting furnace, including a corrosion-resistant exhaust pipe, a cyclone separator, a filter screen, and a spray pipe system. By cooling, filtering, and separating the waste gas, it recovers fine solid particles and reduces the waste gas temperature, preventing damage to the cyclone separator.

Benefits of technology

It achieves efficient separation and recovery of waste gas, reduces raw material waste, improves production efficiency, ensures equipment stability and sealing, and avoids high-temperature damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of negative electrode material calcination furnace temperature gradient control machine bodies, it is related to calcination furnace technical field, including support seat, support frame, calcination furnace, anticorrosive exhaust duct, the one end of anticorrosive exhaust duct is provided with cooling filter assembly, gas in calcination furnace is transported to cyclone cylinder by anticorrosive exhaust duct by inlet through cyclone separator, realize the gas of high-efficiency separation that calcination furnace discharges, by separating emphysema's solid particles, these can be recovered and returned calcination furnace, to reduce raw material waste, improve production efficiency, guide rail and moving seat sliding connection, realize the moving seat that can be moved to anticorrosive exhaust duct outer wall, the work of cleaning to multiple spray pipes, multiple infusion hose cooling liquid in liquid storage cavity is through buffer cross pipe and utilizes multiple spray pipes to carry out cooling work to waste gas in anticorrosive exhaust duct, realize before its gas temperature cooling work to gas into cyclone separator, avoid damaging cyclone separator.
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Description

Technical Field

[0001] This utility model relates to the field of roasting furnace technology, and in particular to a temperature gradient control body for a negative electrode material roasting furnace. Background Technology

[0002] The anode material calcination furnace is a key piece of equipment used in the production of lithium-ion battery anode materials. Its operating temperature typically exceeds 1300℃, and precise temperature gradient control is required to achieve uniform calcination of the materials. During the calcination process, high-temperature, dust-laden exhaust gases are generated inside the furnace. These gases contain fine solid particles (such as iron oxide powder). Direct emission of these gases would not only cause environmental pollution but also waste raw materials.

[0003] To address the above issues, it is necessary to design a temperature gradient control mechanism for the negative electrode material calcination furnace, thereby overcoming these problems. Utility Model Content

[0004] The main objective of this invention is to provide a temperature gradient control body for a negative electrode material calcination furnace, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A temperature gradient control body for a negative electrode material calcination furnace includes a support base, a support frame, a calcination furnace, and a corrosion-resistant exhaust pipe. The calcination furnace is installed at one end of the top of the support frame by fastening bolts, and a cooling filter assembly is provided at one end of the corrosion-resistant exhaust pipe.

[0007] The cooling and filtering assembly includes a protective sleeve disposed at one end of the outer wall of the anti-corrosion exhaust pipe. A sealing seat is connected to the end of the anti-corrosion exhaust pipe away from the roasting furnace. A wedge-shaped block is connected to the end of the sealing seat near the protective sleeve. An adjusting frame is engaged with the inner wall of the wedge-shaped block. An installation cavity is connected to the top of the adjusting frame. A guide rail is connected to the top of the inner side of the adjusting frame. A movable seat is slidably connected to the inner side of the guide rail. A liquid storage chamber is engaged with the inner side of the movable seat. An infusion hose is connected to the bottom of the liquid storage chamber through the bottom of the adjusting frame. A buffer horizontal pipe is connected to the bottom of a plurality of infusion hoses through the top of the anti-corrosion exhaust pipe. A spray pipe is connected to the bottom of the infusion hoses.

[0008] As a preferred embodiment of this utility model, the two ends of the anti-corrosion exhaust pipe are respectively connected to a first filter screen and a second filter screen. The bottom end of the anti-corrosion exhaust pipe near the sealing seat is connected to an air inlet. The bottom of the air inlet is connected to a cyclone separator. The bottom of the cyclone separator is connected to a cyclone cylinder. The bottom of the cyclone cylinder is connected to a dust discharge pipe. The end of the cyclone cylinder away from the dust discharge pipe is connected to an exhaust pipe. A positioning frame is fitted onto the outer wall of the cyclone cylinder.

[0009] As a preferred embodiment of this utility model, the first filter screen is sleeved on one end of the outer wall of the anti-corrosion exhaust pipe, the sealing seat is connected to one end of the anti-corrosion exhaust pipe by fastening bolts, and the wedge-shaped block is snapped into the inner side of one end of the sealing seat.

[0010] In a preferred embodiment of this utility model, the adjustment frame is snapped onto the inner side of the wedge-shaped block, the guide rail is fastened to the inner side of the adjustment frame by fastening bolts, and the movable seat is slidably connected to the inner side of the guide rail.

[0011] As a preferred embodiment of this utility model, the liquid storage chamber is snapped onto the inner side of the movable seat, the top of the movable seat is connected to the infusion tubing via a hose, and the liquid storage chamber is connected to the storage cylinder via a hose passing through the top of the mounting cavity.

[0012] As a preferred embodiment of this utility model, the plurality of infusion tubing passes through the top of the anti-corrosion exhaust pipe and is rotatably connected to the buffer horizontal pipe, the buffer horizontal pipe is rotatably connected to the spray pipe, and the plurality of spray pipes are internally connected to the anti-corrosion exhaust pipe.

[0013] As a preferred embodiment of this utility model, the first filter plate and the second filter plate are both snapped into the two ends inside the anti-corrosion exhaust pipe, and the anti-corrosion exhaust pipe is interconnected with the inside of the cyclone separator through the air inlet.

[0014] As a preferred embodiment of this utility model, the cyclone separator is connected to the cyclone cylinder body by fastening bolts, the cyclone cylinder body is movably connected to the ash discharge pipe, and the positioning frame is sleeved on the outer wall of the cyclone cylinder body by fastening bolts. Beneficial effects

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The temperature gradient control unit of this negative electrode material roasting furnace uses a cyclone separator to transport the gas from the roasting furnace through the air inlet and a corrosion-resistant exhaust pipe into the cyclone body. This achieves efficient separation of the gas discharged from the roasting furnace. By separating solid particles from emphysema, these particles can be recovered and returned to the roasting furnace, thereby reducing raw material waste and improving production efficiency. The positioning frame provides support and stability for the cyclone body. The first and second filter plates effectively perform preliminary filtration of the exhaust gas. The sealing seat uses wedge blocks to limit the adjustment frame, fixing it to the inner wall of the protective sleeve. The guide rail is slidably connected to the moving seat, allowing the moving seat to be moved to the outer wall of the corrosion-resistant exhaust pipe for cleaning multiple spray pipes. Multiple liquid delivery hoses deliver coolant from the storage chamber through a buffer horizontal pipe and multiple spray pipes to cool the exhaust gas in the corrosion-resistant exhaust pipe, achieving gas temperature cooling before the gas enters the cyclone separator and preventing damage to the cyclone separator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the cyclone separator of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the cooling and filtering assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the spray pipe installation structure of this utility model.

[0021] In the diagram: 1. Support base; 2. Support frame; 3. Roasting furnace; 4. Corrosion-resistant exhaust pipe; 5. Cooling and filtering assembly; 6. Air inlet; 7. Cyclone separator; 8. Cyclone cylinder; 9. Ash discharge pipe; 10. Positioning frame; 11. Exhaust pipe; 501. Protective sleeve; 502. First filter screen; 503. Second filter screen; 504. Sealing seat; 505. Wedge block; 506. Adjusting frame; 507. Mounting cavity; 508. Guide rail; 509. Moving seat; 510. Liquid storage chamber; 511. Infusion hose; 512. Buffer horizontal pipe; 513. Spray pipe. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1-4As shown, a temperature gradient control body for a negative electrode material calcination furnace includes a support base 1, a support frame 2, a calcination furnace 3, and a corrosion-resistant exhaust pipe 4. The calcination furnace 3 is installed at one end of the top of the support frame 2 by fastening bolts, and a cooling filter assembly 5 is provided at one end of the corrosion-resistant exhaust pipe 4.

[0024] The cooling filter assembly 5 includes a protective sleeve 501 disposed at one end of the outer wall of the anti-corrosion exhaust pipe 4. A sealing seat 504 is connected to the end of the anti-corrosion exhaust pipe 4 away from the roasting furnace 3. A wedge block 505 is connected to the end of the sealing seat 504 near the protective sleeve 501. An adjusting frame 506 is snapped into the inner wall of the wedge block 505. An installation cavity 507 is connected to the top of the adjusting frame 506. A guide rail 508 is connected to the top of the inner side of the adjusting frame 506. A movable seat 509 is slidably connected to the inner side of the guide rail 508. A liquid storage chamber 510 is snapped into the inner side of the movable seat 509. An infusion hose 511 is connected to the bottom of the liquid storage chamber 510 through the bottom of the adjusting frame 506. A buffer horizontal pipe 512 is connected to the bottom of multiple infusion hoses 511 through the top of the anti-corrosion exhaust pipe 4. A spray pipe 513 is connected to the bottom of the infusion hoses 511.

[0025] The first filter screen 502 is sleeved on one end of the outer wall of the anti-corrosion exhaust pipe 4. The sealing seat 504 is connected to one end of the anti-corrosion exhaust pipe 4 by fastening bolts. The wedge block 505 is snapped into the inner side of one end of the sealing seat 504. The adjusting frame 506 is snapped into the inner side of the wedge block 505. The guide rail 508 is connected to the inner side of the adjusting frame 506 by fastening bolts. The moving seat 509 is slidably connected to the inner side of the guide rail 508. The liquid storage chamber 510 is snapped into the inner side of the moving seat 509. The top of the moving seat 509 is connected to the infusion hose 511 through a hose. The liquid storage chamber 510 is connected to the storage cylinder through the top of the installation chamber 507 through a hose. Multiple infusion hoses 511 pass through the top of the anti-corrosion exhaust pipe 4 and are rotatably connected to the buffer horizontal pipe 512. The buffer horizontal pipe 512 is rotatably connected to the spray pipe 513. Multiple spray pipes 513 are connected to the inside of the anti-corrosion exhaust pipe 4.

[0026] Specifically, the protective sleeve 501 is fitted onto one end of the outer wall of the anti-corrosion exhaust pipe 4; the sealing seat 504 is connected to the end of the anti-corrosion exhaust pipe 4 away from the roasting furnace 3 by fastening bolts; the wedge block 505 is snapped into the inner side of one end of the sealing seat 504; the adjusting frame 506 is snapped into the inner side of the wedge block 505; the guide rail 508 is installed on the inner side of the adjusting frame 506 by fastening bolts; the moving seat 509 is slidably connected to the inner side of the guide rail 508; and the liquid storage chamber 510 is snapped into place. On the inner side of the movable seat 509, the top of the movable seat 509 is connected to the infusion hose 511 through a hose. The liquid storage chamber 510 is connected to the storage cylinder through the top of the installation chamber 507 through a hose. Multiple infusion hoses 511 pass through the top of the anti-corrosion exhaust pipe 4 and are rotatably connected to the buffer horizontal pipe 512. The buffer horizontal pipe 512 is rotatably connected to the spray pipe 513. Multiple spray pipes 513 are connected to the interior of the anti-corrosion exhaust pipe 4. A filter screen 502 is sleeved on one end of the outer wall of the anti-corrosion exhaust pipe 4.

[0027] The two ends of the anti-corrosion exhaust pipe 4 are respectively connected to the first filter screen 502 and the second filter screen 503. The bottom end of the anti-corrosion exhaust pipe 4 near the sealing seat 504 is connected to the air inlet 6. The bottom of the air inlet 6 is connected to the cyclone separator 7. The bottom of the cyclone separator 7 is connected to the cyclone cylinder 8. The bottom of the cyclone cylinder 8 is connected to the ash discharge pipe 9. The end of the cyclone cylinder 8 away from the ash discharge pipe 9 is connected to the exhaust pipe 11. The outer wall of the cyclone cylinder 8 is fitted with a positioning frame 10.

[0028] The first filter plate 502 and the second filter plate 503 are both snapped into the two ends inside the anti-corrosion exhaust pipe 4. The anti-corrosion exhaust pipe 4 is interconnected with the inside of the cyclone separator 7 through the air inlet 6. The cyclone separator 7 is connected to the cyclone body 8 by fastening bolts. The cyclone body 8 is movably connected to the ash discharge pipe 9. The positioning frame 10 is sleeved on the outer wall of the cyclone body 8 by fastening bolts.

[0029] The air inlet 6 is connected to the bottom of the anti-corrosion exhaust pipe 4 near the sealing seat 504. The cyclone separator 7 is connected to the bottom of the air inlet 6. The cyclone separator 7 is connected to the cyclone body 8 by fastening bolts. The cyclone body 8 is movably connected to the ash discharge pipe 9. The positioning frame 10 is sleeved on the outer wall of the cyclone body 8 by fastening bolts. The end of the cyclone body 8 away from the ash discharge pipe 9 is connected to the exhaust pipe 11. The first filter plate 502 and the second filter plate 503 are respectively snapped into the two ends inside the anti-corrosion exhaust pipe 4.

[0030] It should be noted that this utility model is a temperature gradient control body for a negative electrode material roasting furnace. During use, the roasting furnace 3 generates dusty exhaust gas during the high-temperature roasting process. Before entering the cyclone separator 7, the exhaust gas is cooled by the cooling filter assembly 5. The coolant in the liquid storage chamber 510 is transported to the buffer horizontal pipe 512 through the liquid delivery hose 511, and then sprayed into the anti-corrosion exhaust pipe 4 by the spray pipe 513 to reduce the temperature of the exhaust gas. The temperature of the cooled exhaust gas is reduced, avoiding damage to the cyclone separator 7 caused by high temperature. Before entering the cyclone separator 7, the exhaust gas undergoes preliminary filtration by the first filter plate 502 and the second filter plate 503 to remove larger particles. Particulate matter, cooled and pre-filtered exhaust gas enters the cyclone body 8 through the air inlet 6. Inside the cyclone body 8, the exhaust gas rotates at high speed, using centrifugal force to separate fine solid particles such as iron oxide powder and collect them into the ash discharge pipe 9. The separated clean exhaust gas is discharged through the exhaust pipe 11, and the separated solid particles are collected through the ash discharge pipe 9 and can be returned to the roasting furnace 3 for reuse, reducing raw material waste. The guide rail 508 is slidably connected to the movable seat 509, which facilitates moving the movable seat 509 to the outer wall of the anti-corrosion exhaust pipe 4 to clean the spray pipe 513. The sealing seat 504 is fixed to the adjusting frame 506 by the wedge block 505 to ensure the system's sealing and stability.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature gradient control body for a negative electrode material calcination furnace, comprising a support base (1), a support frame (2), a calcination furnace (3), and a corrosion-resistant exhaust pipe (4), characterized in that: The roasting furnace (3) is installed at one end of the top of the support frame (2) by fastening bolts, and a cooling filter assembly (5) is provided at one end of the anti-corrosion exhaust pipe (4). The cooling filter assembly (5) includes a protective sleeve (501) disposed at one end of the outer wall of the anti-corrosion exhaust pipe (4). A sealing seat (504) is connected to the end of the anti-corrosion exhaust pipe (4) away from the roasting furnace (3). A wedge block (505) is connected to the end of the sealing seat (504) near the protective sleeve (501). An adjusting frame (506) is snapped into the inner wall of the wedge block (505). An installation cavity (507) is connected to the top of the adjusting frame (506). The inner side of the adjusting frame (506) is... The top of the device is connected to a guide rail (508), and the inner side of the guide rail (508) is slidably connected to a movable seat (509). The inner side of the movable seat (509) is snapped with a liquid storage chamber (510). The bottom of the liquid storage chamber (510) passes through the bottom of the adjustment frame (506) and is connected to an infusion hose (511). The bottom of the multiple infusion hoses (511) passes through the top of the anti-corrosion exhaust pipe (4) and is connected to a buffer horizontal pipe (512). The bottom of the infusion hoses (511) is connected to a spray pipe (513).

2. The temperature gradient control body of the negative electrode material calcination furnace according to claim 1, characterized in that: The two ends of the anti-corrosion exhaust pipe (4) are respectively connected to a first filter screen plate (502) and a second filter screen plate (503). The bottom of the anti-corrosion exhaust pipe (4) near the sealing seat (504) is connected to an air inlet (6). The bottom of the air inlet (6) is connected to a cyclone separator (7). The bottom of the cyclone separator (7) is connected to a cyclone cylinder (8). The bottom of the cyclone cylinder (8) is connected to a ash discharge pipe (9). The end of the cyclone cylinder (8) away from the ash discharge pipe (9) is connected to an exhaust pipe (11). The outer wall of the cyclone cylinder (8) is fitted with a positioning frame (10).

3. The temperature gradient control body of the negative electrode material calcination furnace according to claim 2, characterized in that: The first filter screen (502) is sleeved on one end of the outer wall of the anti-corrosion exhaust pipe (4), the sealing seat (504) is connected to one end of the anti-corrosion exhaust pipe (4) by fastening bolts, and the wedge block (505) is snapped into the inner side of one end of the sealing seat (504).

4. The temperature gradient control body of the negative electrode material calcination furnace according to claim 1, characterized in that: The adjustment frame (506) is snapped onto the inner side of the wedge block (505), the guide rail (508) is fastened to the inner side of the adjustment frame (506) by fastening bolts, and the movable seat (509) is slidably connected to the inner side of the guide rail (508).

5. The temperature gradient control body of the negative electrode material calcination furnace according to claim 1, characterized in that: The liquid storage chamber (510) is snapped into the inner side of the movable seat (509). The top of the movable seat (509) is connected to the infusion hose (511) through a hose. The liquid storage chamber (510) is connected to the storage cylinder through the top of the mounting cavity (507) through a hose.

6. The temperature gradient control body of the negative electrode material calcination furnace according to claim 1, characterized in that: The plurality of infusion hoses (511) pass through the top of the anti-corrosion exhaust pipe (4) and are rotatably connected to the buffer horizontal pipe (512). The buffer horizontal pipe (512) is rotatably connected to the spray pipe (513). The plurality of spray pipes (513) are internally connected to the anti-corrosion exhaust pipe (4).

7. The temperature gradient control body of the negative electrode material calcination furnace according to claim 2, characterized in that: The first filter plate (502) and the second filter plate (503) are both snapped into the two ends inside the anti-corrosion exhaust pipe (4), and the anti-corrosion exhaust pipe (4) is interconnected with the inside of the cyclone separator (7) through the air inlet (6).

8. The temperature gradient control body of the negative electrode material calcination furnace according to claim 2, characterized in that: The cyclone separator (7) is connected to the cyclone cylinder (8) by fastening bolts. The cyclone cylinder (8) is movably connected to the ash discharge pipe (9). The positioning frame (10) is sleeved on the outer wall of the cyclone cylinder (8) by fastening bolts.