Activated carbon tail gas waste heat utilization and collection device

Abstract

The utility model relates to the field of activated carbon tail gas treatment, and discloses an activated carbon tail gas waste heat utilization and collection device which comprises a water tank, a protective cover is arranged at the top end of the water tank, a driving motor is arranged at the top end of the protective cover, an exhaust pipe is spirally wound on the inner wall of the water tank, and a cleaning assembly is arranged on the inner wall of the protective cover. And the cleaning assembly comprises a gear ring, the outer side of the gear ring is fixedly connected to the inner wall of the protective cover, the inner side of the gear ring is meshed with three sets of first gears, and the top ends of the three sets of first gears are rotationally connected with a stabilizing plate. The water tank, the protective cover, the exhaust pipe and the cleaning assembly are used in cooperation, when the device works, water in the water tank is driven to be stirred through operation of the cleaning assembly, so that the heat energy transmission efficiency and the heating uniformity are improved, meanwhile, the inner wall of the water tank is scraped through the scraping plate, incrustation is prevented from being attached to the inner wall of the water tank, and the service life of the water tank is prolonged. The heat exchange efficiency of the device is maintained.

Description

Technical Field

[0001] The utility model relates to the field of activated carbon tail gas treatment, in particular to a device for collecting and utilizing the waste heat of activated carbon tail gas. Background Technique

[0002] In the production process of activated carbon, especially in key steps such as carbonization and activation, a large amount of tail gas will be generated. These tail gases not only contain harmless components such as water vapor and unburned hydrocarbons, but may also contain a certain amount of volatile organic compounds (VOCs) and harmful gases such as sulfur oxides and nitrogen oxides.

[0003] When the device for collecting and utilizing the waste heat of activated carbon tail gas recovers the waste heat of the tail gas, an effective way commonly adopted is to heat cold water through a heat exchange process to indirectly utilize the waste heat.

[0004] When the existing device for collecting and utilizing the waste heat of activated carbon tail gas recovers the waste heat of the tail gas, during the long-term heating process, minerals in the water may precipitate due to temperature changes and form scale adhering to the inner wall of the device, which will reduce the heat exchange efficiency. Therefore, a device for collecting and utilizing the waste heat of activated carbon tail gas is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a device for collecting and utilizing the waste heat of activated carbon tail gas, aiming to improve the problem that "during long-term heating, minerals in the water are likely to precipitate into scale and adhere to the wall, resulting in a decrease in heat exchange efficiency" in the existing technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A device for collecting and utilizing the waste heat of activated carbon tail gas, including a water tank, a protective cover is arranged at the top of the water tank, a driving motor is arranged at the top of the protective cover, an exhaust pipe is spirally wound on the inner wall of the water tank, a cleaning component is arranged on the inner wall of the protective cover, the cleaning component includes a toothed ring, the outer side of the toothed ring is fixedly connected to the inner wall of the protective cover, three groups of first gears are meshed inside the toothed ring, a stabilizing plate is rotatably connected to the top of the three groups of first gears, a second gear is arranged on the lower side of the middle of the stabilizing plate, the outer side of the second gear is meshed with the outer side of the first gear, the outer side of the output shaft of the driving motor penetrates and is rotatably connected to the inner walls of the protective cover and the stabilizing plate, and the bottom end of the output shaft of the driving motor is fixedly connected to the top of the second gear.

[0007] As a further description of the above technical solution:

[0008] A protective plate is rotatably connected to the lower side of the protective cover, a mounting seat is fixedly connected to the lower side of the first gear, and the outer wall of the upper side of the mounting seat is rotatably connected to the inner wall of the protective plate.

[0009] As a further description of the above technical solution:

[0010] A scraper is slidably connected to the inner wall of the mounting seat, and the scraper is elastically connected to the mounting seat through a return spring.

[0011] As a further description of the above technical solution:

[0012] Multiple groups of the scrapers are provided, and the multiple groups of scrapers are circumferentially and arrayedly distributed around the center point of the mounting seat.

[0013] As a further description of the above technical solution:

[0014] The scraper is made of silica gel material, and the outer side of the scraper slides on the inner wall of the water tank.

[0015] As a further description of the above technical solution:

[0016] A filter box is arranged on the lower side of the exhaust pipe. A filter plate is arranged on the inner wall of the filter box. An upper cover is fixedly connected to the top end of the filter box. A limiting component is arranged on the inner wall of the filter box. The limiting component includes a limiting column. The top end of the limiting column is fixedly connected to the bottom end of the upper cover. The outer side of the limiting column is inserted into the inner wall of the filter box. A limiting block is slidably connected to the inner wall of the front side of the filter box. Multiple groups of the limiting blocks are provided. The opposite sides of two groups of the limiting blocks are elastically connected through a compression spring.

[0017] As a further description of the above technical solution:

[0018] The limiting block is arranged in an L shape.

[0019] As a further description of the above technical solution:

[0020] Multiple groups of the limiting columns are provided. A clamping groove is formed on the side of the limiting column close to the limiting block. The upper part of the side of the limiting block close to the limiting column is an inclined surface. The outer side of the limiting block is inserted into the inner wall of the clamping groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the combined use of the water tank, the protective cover, the exhaust pipe and the cleaning component, when the device works, the operation of the cleaning component drives the water in the water tank to be stirred, so as to improve the heat transfer efficiency and heating uniformity. At the same time, the inner wall of the water tank is scraped by the scraper to prevent scale from adhering to the inner wall of the water tank and maintain the heat exchange efficiency of the device.

[0023] 2. In the present utility model, through the combined use of a filter box, a limiting component, and an exhaust pipe, the tail gas after waste heat utilization can be filtered. When it is necessary to replace the filter plate in the filter box, the upper cover can be quickly removed through the limiting component, thereby improving the replacement and maintenance efficiency of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the overall device in the present utility model;

[0025] Figure 2 is a front three-dimensional structural sectional schematic diagram of the water tank in the present utility model;

[0026] Figure 3 is a disassembled three-dimensional structural schematic diagram of the cleaning component in the present utility model;

[0027] Figure 4 is a top three-dimensional structural sectional schematic diagram of the mounting seat in the present utility model;

[0028] Figure 5 is a left three-dimensional structural sectional schematic diagram of the filter box in the present utility model.

[0029] LEGEND DESCRIPTION:

[0030] 1. Water tank; 2. Protective cover; 3. Driving motor; 4. Exhaust pipe; 51. Ring gear; 52. First gear; 53. Second gear; 54. Protective plate; 55. Mounting seat; 56. Scraper; 57. Return spring; 6. Filter box; 7. Upper cover; 71. Limiting column; 72. Limiting block; 73. Compression spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figure 1 - Figure 3, An embodiment provided by the present utility model: An activated carbon tail gas waste heat utilization and collection device, including a water tank 1, with a water injection port provided on the upper side and a water outlet valve provided on the lower side, which can heat the cold water inside the water tank 1 through the waste heat of the activated carbon tail gas, for the recovery and utilization of waste heat. A protective cover 2 is provided at the top of the water tank 1 to seal the water tank 1, prevent heat loss and prevent impurities from entering the water tank 1. A driving motor 3 is provided at the top of the protective cover 2, which is a reduction motor and provides a power source for the cleaning component. This technology is prior art, so it will not be elaborated here. An exhaust pipe 4 is spirally wound on the inner wall of the water tank 1, and the activated carbon tail gas flows in the exhaust pipe 4, enabling the heat in the tail gas to be effectively transferred to the cold water in the water tank 1, realizing waste heat utilization. A cleaning component is provided on the inner wall of the protective cover 2.

[0033] Further, the cleaning component includes a gear ring 51, the outer side of the gear ring 51 is fixedly connected to the inner wall of the protective cover 2, enabling the three groups of gears 52 to rotate around the gear 53 while rotating on their own axes. The inner side of the gear ring 51 is engaged with three groups of gears 52, and the gears 52 are used to drive the mounting seat 55 and the scraper 56 to rotate, for cleaning the inner wall of the water tank 1. A stabilizing plate is rotatably connected to the top of the three groups of gears 52 to improve the stability of the three groups of gears 52. A gear 53 is provided on the lower side of the middle of the stabilizing plate, which is directly driven by the driving motor 3 to rotate. Through the engagement of the gear 53 with the gears 52, the power is dispersed and transmitted to each gear 52, realizing the distribution and transmission of power. The outer side of the gear 53 is engaged with the outer side of the gears 52, and the outer side of the output shaft of the driving motor 3 is rotatably connected through the inner walls of the protective cover 2 and the stabilizing plate.

[0034] Referring to Figure 2 and Figure 3 , the bottom end of the output shaft of the driving motor 3 is fixedly connected to the top of the gear 53. A protective plate 54 is rotatably connected to the lower side of the protective cover 2 to protect the components inside the protective cover 2. The lower side of the gear 52 is fixedly connected to a mounting seat 55, which is fixedly connected to the lower side of the gear 52 and can rotate under the drive of the gear 52. The mounting seat 55 provides a position for the installation and fixation of the scraper 56, enabling the scraper 56 to clean the inner wall of the water tank 1 as the mounting seat 55 rotates, preventing scale from adhering to the inner wall of the water tank 1 and maintaining the heat exchange efficiency of the device. The outer wall of the upper side of the mounting seat 55 is rotatably connected to the inner wall of the protective plate 54.

[0035] Furthermore, a scraper 56 is slidably connected to the inner wall of the mounting base 55. Driven by the mounting base 55, the scraper 56 slides on the inner wall of the water tank 1 to scrape off the attached impurities and dirt, maintaining the heat exchange efficiency of the device. The scraper 56 is made of silica gel material, having a certain elasticity and softness, which can not only effectively scrape the dirt on the inner wall of the water tank 1, but also cause no damage to the water tank 1. The outer side of the scraper 56 slides on the inner wall of the water tank 1, and the scraper 56 is elastically connected to the mounting base 55 by a return spring 57, providing a restoring force for the scraper 56. When the scraper 56 encounters an obstacle or an uneven surface on the inner wall of the water tank 1, the return spring 57 can keep the scraper 56 in close contact with the inner wall of the water tank 1 to ensure the cleaning effect.

[0036] Refer to Figure 2 - Figure 4 , multiple groups of scrapers 56 are provided. The multiple groups of scrapers 56 are circumferentially and arrayedly distributed around the center point of the mounting base 55, which can clean the inner wall of the water tank 1 more comprehensively. A filter box 6 is arranged on the lower side of the exhaust pipe 4, which is used to filter the activated carbon tail gas passing through the exhaust pipe 4, remove the impurities and harmful substances therein, and reduce the environmental pollution. At the same time, a sealing gasket is arranged at the joint between the bottom end of the filter box 6 and the upper cover 7. A filter plate is arranged on the inner wall of the filter box 6, and activated carbon is arranged inside to absorb the harmful substances in the tail gas. This technology is an existing technology, so it will not be elaborated here. The top end of the filter box 6 is fixedly connected with an upper cover 7, which is used to seal the top end of the filter box 6 to prevent the tail gas from leaking and provide an installation basis for the limiting component.

[0037] Refer to Figure 1 、 Figure 2 and Figure 5 , a limiting component is arranged on the inner wall of the filter box 6. The limiting component includes a limiting post 71. By opening a clamping groove on one side close to the limiting block 72 and cooperating with the limiting block 72, the fixed connection between the upper cover 7 and the filter box 6 is realized. At the same time, the bottom end of the limiting post 71 is set as an inclined surface, and the inclined surface enables the limiting post 71 to relatively easily squeeze the inclined surface on the limiting block 72, causing the limiting block 72 to contract inward, and the compression spring 73 is compressed. When the upper cover 7 is installed in place, under the elastic force of the compression spring 73, the limiting block 72 pops into the clamping groove to complete the fixation. The top end of the limiting post 71 is fixedly connected to the bottom end of the upper cover 7, the outer side of the limiting post 71 is inserted into the inner wall of the filter box 6, and a limiting block 72 is slidably connected to the front inner wall of the filter box 6. Under the action of the compression spring 73, the outer side of the limiting block 72 is inserted into the clamping groove of the limiting post 71, thereby quickly fixing the upper cover 7 and the filter box 6 together.

[0038] The locking cam 73 is used to lock the locking cam 72 so that the locking cam 72 is in a state of being locked and the locking cam 72 is in a state of being locked.

[0039] Working principle: When in use, first inject cold water into the water tank 1 through the water inlet on the upper side of the water tank 1, and the activated carbon tail gas enters the exhaust pipe 4 spirally wound around the inner wall of the water tank 1, and the heat in the tail gas is transferred to the cold water in the water tank 1 to realize the waste heat utilization.

[0040] During the operation of the device, the driving motor 3 at the top of the protective cover 2 is started, and the output shaft of the driving motor 3 drives the gear 2 53 to rotate. The gear 2 53 interacts with the three sets of gears 1 52 meshing on the outside. Since the ring gear 51 is fixed to the inner wall of the protective cover 2 and meshes with the gear 1 52, the gear 1 52 rotates around the gear 2 53 while rotating on its own.

[0041] Gear 1 52 drives the mounting seat 55 on the lower side to rotate, and multiple groups of scrapers 56 slidably connected to the inner wall of the mounting seat 55 rotate accordingly. The scrapers 56 are made of silicone. Under the action of the return spring 57, the outer side of the scrapers 56 closely fits the inner wall of the water tank 1. The scrapers 56 completely clean the dirt on the inner wall of the water tank 1 during the rotation process to prevent scale adhesion from affecting the heat exchange efficiency.

[0042] When it is necessary to open the upper cover 7 on the filter box 6 for maintenance or replacement of the filter plate, the operator pulls the L-shaped limit block 72 to overcome the elastic force of the compression spring 73 and disengage from the slot of the limit column 71, thereby releasing the fixation of the upper cover 7 and the filter box 6, and replacing or maintaining the filter plate. When the filter plate is replaced or maintained and the upper cover 7 needs to be installed, the inclined surface at the bottom end of the limit column 71 squeezes the inclined surface on the limit block 72, causing the limit block 72 to shrink inward and the compression spring 73 to be compressed. When the upper cover 7 is installed in place, under the elastic force of the compression spring 73, the limit block 72 pops into the slot, completing the fixation of the upper cover 7 and the filter box 6.

[0043] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An activated carbon tail gas waste heat collection device, comprising a water tank (1), characterized in that: The top of the water tank (1) is provided with a protective cover (2), the top of the protective cover (2) is provided with a driving motor (3), the inner wall of the water tank (1) is provided with an exhaust pipe (4) spirally wound, the inner wall of the protective cover (2) is provided with a cleaning assembly, the cleaning assembly comprises a gear ring (51), the outer side of the gear ring (51) is fixedly connected to the inner wall of the protective cover (2), the inner side of the gear ring (51) is meshed with a gear one (52) and is provided with three groups, the tops of the three groups of gears one (52) are rotatably connected to a stabilizing plate, a gear two (53) is provided at the lower middle part of the stabilizing plate, the outer side of the gear two (53) is meshed with the outer side of the gear one (52), the outer side of the output shaft of the driving motor (3) passes through and is rotatably connected to the protective cover (2) and the inner wall of the stabilizing plate, and the bottom end of the output shaft of the driving motor (3) is fixedly connected to the top of the gear two (53).

2. The activated carbon tail gas waste heat collection device according to claim 1 is characterized in that: The lower side of the protective cover (2) is rotatably connected to a protective plate (54), the lower side of the gear 1 (52) is fixedly connected to a mounting seat (55), and the upper outer wall of the mounting seat (55) is rotatably connected to the inner wall of the protective plate (54).

3. The activated carbon tail gas waste heat collection device according to claim 2 is characterized in that: The inner wall of the mounting seat (55) is slidably connected with a scraper (56), and the scraper (56) is elastically connected to the mounting seat (55) via a return spring (57).

4. The activated carbon tail gas waste heat collection device according to claim 3 is characterized in that: The scrapers (56) are provided in a plurality of groups, and the plurality of groups of scrapers (56) are distributed in a circular array with the center point of the mounting seat (55) as the axis.

5. The activated carbon tail gas waste heat collection device according to claim 3 is characterized by: The scraper (56) is made of silica gel, and the outer side of the scraper (56) slides on the inner wall of the water tank (1).

6. The activated carbon tail gas waste heat collection device according to claim 1, characterized in that: A filter box (6) is arranged at the lower side of the exhaust pipe (4), a filter plate is arranged on the inner wall of the filter box (6), the top end of the filter box (6) is fixedly connected to an upper cover (7), a limit assembly is arranged on the inner wall of the filter box (6), the limit assembly comprises a limit column (71), the top end of the limit column (71) is fixedly connected to the bottom end of the upper cover (7), the outer side of the limit column (71) is plugged into the inner wall of the filter box (6), the front inner wall of the filter box (6) is slidably connected to a limit block (72), a plurality of groups of the limit blocks (72) are arranged, and opposite sides of two groups of the limit blocks (72) are elastically connected via a compression spring (73).

7. The activated carbon tail gas waste heat collection device according to claim 6, characterized in that: The limiting block (72) is configured to be in an L shape.

8. The activated carbon tail gas waste heat collection device according to claim 6 is characterized by: The limiting posts (71) are provided with a plurality of groups. A slot is provided on one side of the limiting posts (71) close to the limiting blocks (72). An upper portion of the side of the limiting blocks (72) close to the limiting posts (71) is provided with an inclined surface. The outer side of the limiting blocks (72) is plugged into the inner wall of the slot.

Images