Tar filtering device with dumping function

By designing a tar filtration device with a dumping function, the problems of efficient filtration and impurity removal of waste tar in the production of lithium battery negative electrodes are solved, the labor intensity and environmental pollution risks are reduced, and the efficient treatment of tar and resource recycling are achieved.

CN223351239UActive Publication Date: 2025-09-19GANSU SOTONGSHENGYUAN CARBON MATERIALS CO LTD
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Patent Information

Application Number
CN202422826081.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-09-19
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

In the existing technology, the waste tar generated during the production of lithium battery negative electrodes needs to be free of impurities and moisture before treatment, but there is a lack of efficient filtering devices, resulting in high treatment costs and great environmental pollution risks.

Method used

A tar filtration device with a dumping function is designed, including a shell, a steam system, a filter screen and a multi-stage sedimentation tank. Combining steam heating and multi-stage sedimentation, efficient tar filtration and impurity removal are achieved, and the dumping device improves operational convenience.

Benefits of technology

It achieves efficient filtration of waste tar and removal of impurities, reduces labor intensity, reduces environmental pollution risks, and recycles condensed water to reduce processing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the tar filtering device with the pouring function, in the device, a shell is of a hollow interlayer structure; the deflection baffle is arranged in the interlayer of the shell and is communicated with the steam inlet to slow down the flow speed of steam in the steam inlet; the filter screen is arranged at a tar inlet in the top of the shell to filter tar guided into the inner layer of the interlayer of the shell; the tar outlet is formed in one end, far away from the filter screen, of the shell and communicated with the interlayer inner layer of the shell to lead out tar; the first isolation retaining wall and the second isolation retaining wall are arranged on the inner layer of the interlayer of the shell and extend upwards; the running track is arranged on one side of the shell, the running track comprises a lifting part vertically extending upwards and a bending part which bends and extends from the top end of the lifting part and is used for turning and dumping, the tar collecting barrel supporting plate is movably arranged between a lower running limit and an upper running limit, and the lifting oil cylinder is in driving connection with the tar collecting barrel supporting plate. The device is used for filtering impurities in the waste tar and removing moisture in the waste tar.
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Description

Technical Field

[0001] The utility model relates to the technical field of waste tar filtering in the lithium battery negative electrode material production industry, in particular to a tar filtering device with a dumping function. Background Art

[0002] The negative electrode is the main component of lithium batteries. Currently, the negative electrode materials of lithium batteries are mainly divided into artificial graphite negative electrodes and natural graphite negative electrodes. The main raw materials of artificial graphite negative electrodes are coal-based, petroleum-based, and coal and petroleum mixed systems. Currently, the production of ordinary artificial graphite by negative electrode manufacturers on the market requires four major processes, including crushing, granulation, graphitization, and screening. Granulation is the key link in the processing of artificial graphite, and the mainstream equipment for the granulation process is mostly vertical or horizontal reactors. When the material is heated and stirred in the reactor, the material will undergo a series of physical and chemical changes. The generated flue gas is extracted from the reactor through the flue under the action of the negative pressure of the reactor exhaust fan. When the flue gas passes through the flue gas condenser of the reactor, the tar, materials, etc. in the flue gas will be deposited due to the drop in temperature and the slowdown in flow rate. Deposited tar is typically collected in industrial plastic barrels. The collected tar is considered hazardous waste and must be provided or entrusted to a qualified disposal facility for disposal. Generally, the waste tar must be filtered to remove impurities, moisture, and other non-combustible substances before being incinerated or otherwise disposed of. This initial filtration and moisture treatment of the waste tar directly impacts the effectiveness and cost of subsequent treatment.

[0003] The above information disclosed in the background technology section is only for enhancing understanding of the background of the present invention and therefore may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a tar filtering device with a dumping function, which can filter impurities in waste tar and remove moisture in the waste tar.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] The utility model provides a tar filtering device with a dumping function, comprising:

[0007] a shell having a hollow sandwich structure;

[0008] a steam inlet, which is provided in the shell and communicates with the interlayer of the shell to introduce steam;

[0009] a deflection baffle, which is provided in the interlayer of the shell and communicates with the steam inlet to slow down the flow rate of the steam therein;

[0010] a steam outlet, which is provided on the shell and communicates with the interlayer to discharge steam;

[0011] A filter screen is provided at the tar inlet on the top of the shell to filter the tar introduced into the inner layer of the shell interlayer;

[0012] A tar outlet is provided at one end of the housing away from the filter screen and is connected to the inner layer of the housing interlayer to discharge the tar;

[0013] A first isolation retaining wall and a second isolation retaining wall are provided in the inner layer of the interlayer of the shell and extend upward to separate the inner layer of the interlayer into a primary sedimentation tank below the filter screen, a secondary sedimentation tank adjacent to the primary sedimentation tank, and a tertiary sedimentation tank adjacent to the secondary sedimentation tank, a primary sedimentation drain valve is provided at the bottom of the primary sedimentation tank, a secondary sedimentation drain valve is provided at the bottom of the secondary sedimentation tank, and a tertiary sedimentation drain valve is provided at the bottom of the tertiary sedimentation tank;

[0014] A tar pouring device is connected to the housing, and the tar pouring device includes:

[0015] The running track is arranged on one side of the shell, and the running track includes a lifting part extending vertically upward and a curved part extending from the top of the lifting part for turning and dumping. The running starting position of the lifting part is provided with a running lower limit, and the running ending position of the curved part is provided with a running upper limit.

[0016] The tar collection barrel support plate is movably arranged between the lower operating limit position and the upper operating limit position.

[0017] A lifting cylinder drives the tar collection barrel support plate.

[0018] In the tar filtering device with a dumping function, the tar dumping device also includes a tar barrel holder for clamping the tar barrel on the tar collection barrel support plate, which rotates around a fixed rotating shaft to clamp the tar barrel.

[0019] In the tar filtering device with a dumping function, the tar collecting barrel support plate is moved by being pulled by a cable, and the cable is provided on the tar dumping device via a support plate lifting cable fixing ring.

[0020] In the tar filtering device with a dumping function, the shell includes a radar level gauge arranged inside and a smoke outlet connected to the interlayer to guide the smoke.

[0021] In the tar filtering device with a dumping function, the outer layer of the shell is covered with a heat-insulating material layer.

[0022] In the tar filtering device with a dumping function, the top surface of the shell includes a cooling cover plate through which cooling water can pass, the inner side of the top surface is an inverted cone structure, and a condensed water collector is provided at the cone apex of the inverted cone structure.

[0023] In the tar filtering device with a dumping function, the cooling cover plate includes a cooling water outlet and a cooling water inlet.

[0024] In the tar filtering device with a dumping function, the filter screen is detachably arranged at the tar inlet, and the filter screen is provided with an anti-splashing baffle.

[0025] In the tar filtering device with a dumping function, the first isolation retaining wall is higher than the second isolation retaining wall.

[0026] In the tar filtering device with a dumping function, a fixed filter screen is provided at the top of the first isolation retaining wall.

[0027] In the above technical solution, the utility model provides a tar filter device with a dumping function, which has the following beneficial effects: the tar filter device with a dumping function collects and filters the tar generated during the production process of lithium battery negative electrode manufacturers. The tar dumping device increases the portability of the tar dumping device and reduces the labor intensity. At the same time, a cooling device and a gas collection port are added to ensure that volatile organic compounds that overflow from the waste tar during the evaporation process during the filtration process will not diffuse into the air and pollute the environment. The gas enters the flue gas purification device through the collection port for treatment and then meets the emission standards. The condensed water is treated in the sewage treatment system and can be returned to the production system for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1 This is a structural diagram of the tar filtering device with a dumping function of the utility model.

[0030] Figure 2 This is a structural schematic diagram of a tar pouring device of a tar filtering device with a pouring function of the utility model.

[0031] The marks in the accompanying drawings are: 1. Tar collection barrel pallet; 2. Lifting cylinder; 3. Running track; 4. Filter; 5. Anti-splash baffle; 6. Cooling water outlet; 7. Cooling cover; 8. Condensate collector; 9. Cooling water inlet; 10. Flue gas outlet; 11. Steam inlet; 12. Tar flow outlet; 13. Steam condensate drain valve; 14. Three-stage sedimentation drain valve; 15. Two-stage sedimentation drain valve; 16. One-stage sedimentation drain valve; 17. Radar level gauge; 18. Steam outlet; 19. Deflection baffle; 20. Fixed filter; 201. Pallet lifting cable fixing ring; 202. Tar barrel holder; 203. Tar barrel fixing cylinder; 301. Upper operating limit; 302. Lower operating limit. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1-2 As shown, in one embodiment, a tar filtering device with a dumping function of the utility model includes:

[0037] a shell having a hollow sandwich structure;

[0038] a steam inlet 11, which is provided in the shell and communicates with the interlayer of the shell to introduce steam;

[0039] a deflector baffle 19, which is provided in the interlayer of the shell and communicates with the steam inlet 11 to slow down the flow rate of steam therein;

[0040] a steam outlet 18 provided on the shell and communicating with the interlayer to discharge steam;

[0041] A filter 4 is provided at the tar inlet on the top of the housing to filter the tar introduced into the inner layer of the housing interlayer;

[0042] A tar outlet 12 is provided at one end of the housing away from the filter 4 and communicates with the inner layer of the housing interlayer to discharge the tar;

[0043] The first isolation retaining wall and the second isolation retaining wall are provided in the inner layer of the interlayer of the shell and extend upward to separate the inner layer of the interlayer into a primary sedimentation tank below the filter screen, a secondary sedimentation tank adjacent to the primary sedimentation tank, and a tertiary sedimentation tank adjacent to the secondary sedimentation tank. A primary sedimentation drain valve 16 is provided at the bottom of the primary sedimentation tank, a secondary sedimentation drain valve 15 is provided at the bottom of the secondary sedimentation tank, and a tertiary sedimentation drain valve 14 is provided at the bottom of the tertiary sedimentation tank;

[0044] A tar pouring device is connected to the housing, and the tar pouring device includes:

[0045] The running track 3 is provided on one side of the housing. The running track 3 includes a lifting portion extending vertically upward and a curved portion extending from the top of the lifting portion for turning and dumping. The running starting position of the lifting portion is provided with a running lower limit 302, and the running ending position of the curved portion is provided with a running upper limit 301.

[0046] The tar collection barrel support plate 1 is movably arranged between the lower limit position and the upper limit position.

[0047] The lifting cylinder 2 drives the tar collection barrel support plate 1.

[0048] In a preferred embodiment of the tar filtering device with a dumping function, the tar dumping device further comprises a tar barrel holder 202 for clamping the tar barrel on the tar collecting barrel support plate 1, which rotates around a fixed rotation axis to clamp the tar barrel.

[0049] In a preferred embodiment of the tar filtering device with a dumping function, the tar collecting barrel support plate 1 is moved by being pulled by a cable, and the cable is provided on the tar dumping device via a support plate lifting cable fixing ring 201.

[0050] In a preferred embodiment of the tar filtering device with a dumping function, the housing includes a radar level gauge 17 provided inside and a smoke outlet 10 connected to the interlayer to conduct smoke.

[0051] In a preferred embodiment of the tar filtering device with a dumping function, the outer layer of the shell is coated with a layer of heat-insulating material.

[0052] In a preferred embodiment of the tar filtering device with a dumping function, the top surface of the shell includes a cooling cover plate 7 through which cooling water can pass, the inner side of the top surface is an inverted conical structure, and a condensed water collector 8 is provided at the cone apex of the inverted conical structure.

[0053] In a preferred embodiment of the tar filtering device with a dumping function, the cooling cover plate 7 includes a cooling water outlet 6 and a cooling water inlet 9 .

[0054] In a preferred embodiment of the tar filtering device with a dumping function, the filter screen is detachably arranged at the tar inlet, and the filter screen is provided with an anti-splashing baffle 5.

[0055] In a preferred embodiment of the tar filtering device with a dumping function, the first isolation retaining wall is higher than the second isolation retaining wall.

[0056] In a preferred embodiment of the tar filtering device with a dumping function, a fixed filter screen 20 is provided on the top of the first isolation retaining wall.

[0057] In one embodiment, a tar filtration device with an automatic dumping function has a steam inlet 11 on the right side of the housing and a steam outlet 18 on the left side. During operation, high-temperature steam is introduced through the steam inlet 11. A deflector 19 within the housing interlayer slows the steam flow, allowing the interior of the housing to heat up rapidly. The right side of the housing is equipped with a tar dumping mechanism. To operate, a tar collection barrel is placed on the tar collection barrel support plate 1. The device is then activated, and the tar barrel securing cylinder activates, driving the tar barrel holder 202 to rotate around a fixed axis, clamping the tar barrel. The tar collection barrel support plate 1, lifted by the lifting cylinder 2, begins to move upward along the running track 3. When it reaches the end of the track, the upper limit stop 301 signals the stop of the lifting mechanism, causing the tar barrel to flip 90 degrees. The tar inside the barrel, guided by the anti-splash baffle 5, flows into the filter screen 4 for preliminary tar filtration. After preliminary filtration, the tar flows into the primary sedimentation tank for sedimentation. When the incoming tar level reaches the height of the first isolation wall, the upper layer of tar begins to flow through the fixed filter 20 into the secondary sedimentation tank for sedimentation. When the tar level in the secondary sedimentation tank reaches the height of the second isolation wall, the tar begins to overflow into the tertiary sedimentation tank. The filtered and settled tar can be discharged from the tar discharge port 12. The top of the shell is equipped with a cooling cover 7 containing cooling water. Cooling circulating water enters through the cooling water inlet 9 and flows out through the cooling water outlet 6. When the steam temperature rises above 100 degrees Celsius, the water mixed with the tar begins to evaporate. The evaporated water vapor contacts the cooling cover and becomes condensed water. Under the action of the inverted conical slope, it flows into the condensate collector 8. The collected condensed water flows out through a pipe. The smoke generated by the heating of the tar in the shell is discharged from the smoke outlet 10 and discharged through the smoke pipe to the smoke purification facility.

[0058] In one embodiment, the interlayer is provided with a steam condensate drain valve 13 .

[0059] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tar filtering device with a dumping function, characterized in that: These include, a shell having a hollow sandwich structure; a steam inlet, which is provided in the shell and communicates with the interlayer of the shell to introduce steam; a deflection baffle, which is provided in the interlayer of the shell and communicates with the steam inlet to slow down the flow rate of the steam therein; a steam outlet, which is provided on the shell and communicates with the interlayer to discharge steam; A filter screen is provided at the tar inlet on the top of the shell to filter the tar introduced into the inner layer of the shell interlayer; A tar outlet is provided at one end of the housing away from the filter screen and is connected to the inner layer of the housing interlayer to discharge the tar; A first isolation retaining wall and a second isolation retaining wall are provided in the inner layer of the interlayer of the shell and extend upward to separate the inner layer of the interlayer into a primary sedimentation tank below the filter screen, a secondary sedimentation tank adjacent to the primary sedimentation tank, and a tertiary sedimentation tank adjacent to the secondary sedimentation tank, a primary sedimentation drain valve is provided at the bottom of the primary sedimentation tank, a secondary sedimentation drain valve is provided at the bottom of the secondary sedimentation tank, and a tertiary sedimentation drain valve is provided at the bottom of the tertiary sedimentation tank; A tar pouring device is connected to the housing, and the tar pouring device includes: The running track is arranged on one side of the shell, and the running track includes a lifting part extending vertically upward and a curved part extending from the top of the lifting part for turning and dumping. The running starting position of the lifting part is provided with a running lower limit, and the running ending position of the curved part is provided with a running upper limit. The tar collection barrel support plate is movably arranged between the lower operating limit position and the upper operating limit position. A lifting cylinder drives the tar collection barrel support plate.

2. The tar filtering device with a dumping function according to claim 1, characterized in that: The tar pouring device also includes a tar barrel fixer for clamping the tar barrel on the tar collection barrel support plate, which rotates around a fixed rotation axis to clamp the tar barrel.

3. The tar filtering device with a dumping function according to claim 1, characterized in that: The tar collecting barrel supporting plate is moved by being pulled by a cable, and the cable is arranged on the tar pouring device via a supporting plate lifting cable fixing ring.

4. The tar filtering device with a dumping function according to claim 1, characterized in that: The shell includes a radar level gauge arranged inside and a smoke outlet connected to the interlayer to guide the smoke out.

5. The tar filtering device with a dumping function according to claim 1, characterized in that: The outer layer of the shell is covered with a heat-insulating material layer.

6. The tar filtering device with a dumping function according to claim 1, characterized in that: The top surface of the shell includes a cooling cover plate through which cooling water can pass. The inner side of the top surface is an inverted cone structure, and a condensed water collector is provided at the cone apex of the inverted cone structure.

7. The tar filtering device with a dumping function according to claim 6, characterized in that: The cooling cover plate includes a cooling water outlet and a cooling water inlet.

8. The tar filtering device with a dumping function according to claim 1, characterized in that: The filter screen is detachably arranged at the tar inlet, and the filter screen is provided with an anti-splashing baffle.

9. The tar filtering device with a dumping function according to claim 1, characterized in that: The first isolation retaining wall is higher than the second isolation retaining wall.

10. The tar filtering device with a dumping function according to claim 1, characterized in that: A fixed filter screen is provided on the top of the first isolation retaining wall.