Packed tower for coal chemical industry

Abstract

The utility model belongs to the technical field of packed towers, and particularly relates to a packed tower for coal chemical industry, which comprises a tower body, an air inlet pipe and an exhaust pipe, the air inlet pipe is communicated and connected with the bottom of the side wall of the tower body, the exhaust pipe is communicated and connected with the top of the tower body, a support bottom plate is arranged on the inner wall of the tower body, and first packing is arranged on the upper surface of the support bottom plate. A first filler is arranged on the lower surface of the first filler, a second filler is arranged above the first filler, a spraying disc is arranged above the second filler, a liquid distribution disc is arranged between the first filler and the second filler and abuts against the lower surface of the second filler, and fans are installed on the lower surface of the liquid distribution disc and above the spraying disc. The draught fan blows air downwards above the first filler and the second filler, the rising speed of waste gas can be reduced, the time for the waste gas to pass through the first filler and the second filler is prolonged, the waste gas can make better contact with falling water, and the waste gas treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packed towers, in particular to a packed tower for coal chemical industry. Background Art

[0002] The packed tower uses packing as the basic component for gas-liquid contact and mass transfer. The liquid flows from top to bottom in a film-like manner on the surface of the packing, and the gas flows from bottom to top in a continuous phase with the liquid, and mass and heat transfer between the gas and liquid phases is carried out. The component concentration and temperature of the two phases change continuously along the tower height. The packed tower is a differential contact type gas-liquid mass transfer equipment.

[0003] The invention patent with the current patent publication number CN106178843B discloses a packed absorption tower, including an absorption tower body, a circulating liquid tank, a circulating water pump, an absorption liquid tank, and a feeding device; the absorption tower body is provided with a demisting layer, a plurality of liquid distributors, a packing pressure plate, a packing layer, a packing support plate, and a first PH detector from top to bottom, and the side wall of the absorption tower body is provided with an exhaust gas inlet; the circulating liquid tank is provided with a stirring motor on the top, and a high liquid level sensor, a low liquid level sensor, and a second PH detector are provided on the inner wall; the circulating water pump, the water inlet end of which is connected to the circulating liquid tank through a water inlet pipe, and the water outlet end of the circulating water pump is connected to a water outlet pipe, and the water outlet end of the water outlet pipe is provided with multiple water outlet branches; the absorption liquid tank is connected to the circulating liquid tank through a liquid infusion pipe; the feeding device includes a feeding hopper and a feeding cylinder. The device can intelligently add new absorption liquid according to the saturation of the absorption liquid, and has a high organic waste gas removal efficiency, meeting strict emission standards.

[0004] When the existing packed tower is purifying the waste gas, the waste gas rises in the tower body, passes through the packing and is sprayed. The waste gas rises quickly in the tower body, resulting in a short time for the waste gas to pass through the packing and the time it encounters the spraying liquid during treatment, resulting in poor waste gas treatment effect. In order to solve the above problems, a packed tower for coal chemical industry is proposed in the present application. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a packing tower for coal chemical industry, in which a fan blows air downward above the No. 1 packing and the No. 2 packing, which can reduce the rising speed of the exhaust gas and increase the time for the exhaust gas to pass through the No. 1 packing and the No. 2 packing, so that the exhaust gas can better contact with the falling water, thereby improving the treatment effect of the exhaust gas, so as to solve the problems raised in the background technology.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a packing tower for coal chemical industry, including a tower body, an air inlet pipe and an exhaust pipe, wherein the air inlet pipe is connected to the bottom of the tower body side wall, the exhaust pipe is connected to the top of the tower body, a supporting bottom plate is provided on the upper surface of the supporting bottom plate, a No. 1 packing is provided above the No. 1 packing, a No. 2 packing is provided above the No. 1 packing, and a spray plate is provided above the No. 2 packing;

[0009] A liquid distribution plate is provided between the No. 1 filler and the No. 2 filler. The liquid distribution plate abuts against the lower surface of the No. 2 filler. Fans are installed on the lower surface of the liquid distribution plate and above the spray plate.

[0010] Preferably, a fixed pressure plate is provided on the top surface of the No. 2 filler, and the fixed pressure plate is located below the spray plate.

[0011] Preferably, a water injection pipe is connected to one side of the spray plate, and the water injection pipe is conductively connected to the tower body.

[0012] Preferably, a water pump is installed at one end of the water injection pipe away from the spray plate, and the water pump is fixed on the surface of the tower body.

[0013] Preferably, a drainage pipe is connected to the bottom of the outer wall of the tower body, and the height of the drainage pipe is lower than the height of the air inlet pipe.

[0014] Preferably, a driving motor is installed on the lower surface of the tower body, a power output end of the driving motor penetrates the cavity wall at the bottom of the tower body, and the power output end of the driving motor is transmission-connected to a rotating frame.

[0015] Preferably, rubber scrapers are embedded in the bottom surface and the outer wall surface of the rotating frame, and the rubber scrapers are respectively in contact with the inner wall and the bottom surface of the tower body.

[0016] The above technical solution of the utility model has the following beneficial technical effects:

[0017] The utility model adopts a fan to blow air downward above the No. 1 filler and the No. 2 filler, which can reduce the rising speed of the exhaust gas and increase the time for the exhaust gas to pass through the No. 1 filler and the No. 2 filler, so that the exhaust gas can better contact with the falling water, thereby improving the treatment effect of the exhaust gas.

[0018] The utility model drives the rotating frame by a driving motor, and the rotating frame can scrape off the stains adhered to the inner wall and the bottom of the tower body through a rubber scraper, and can clean the water storage cavity wall at the bottom of the inner cavity of the tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a packing tower for coal chemical industry of the utility model;

[0020] Figure 2This is a schematic diagram of the internal structure of a tower body of a packing tower for coal chemical industry of the utility model;

[0021] Figure 3 This is a schematic cross-sectional structure diagram of a packing tower for coal chemical industry of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of a rotating frame driving structure of a packing tower for coal chemical industry.

[0023] Reference numerals:

[0024] 1. Tower body; 2. Air inlet pipe; 3. Exhaust pipe; 4. Support bottom plate; 5. No. 1 filler; 6. Liquid distribution plate; 7. No. 2 filler; 8. Fixed pressure plate; 9. Spray plate; 10. Water injection pipe; 11. Water pump; 12. Fan; 13. Drain pipe; 14. Drive motor; 15. Rotating frame; 16. Rubber scraper. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0026] like Figure 1-4 As shown, the utility model proposes a packing tower for coal chemical industry, comprising a tower body 1, an air inlet pipe 2 and an exhaust pipe 3, wherein the air inlet pipe 2 is connected to the bottom of the side wall of the tower body 1, and the exhaust pipe 3 is connected to the top of the tower body 1, and a supporting bottom plate 4 is provided on the inner wall of the tower body 1, and a No. 1 packing 5 is provided on the upper surface of the supporting bottom plate 4, and a No. 2 packing 7 is provided above the No. 1 packing 5, and a spray plate 9 is provided above the No. 2 packing 7;

[0027] A liquid distribution plate 6 is provided between the No. 1 filler 5 and the No. 2 filler 7 . The liquid distribution plate 6 abuts against the lower surface of the No. 2 filler 7 . A fan 12 is installed on the lower surface of the liquid distribution plate 6 and above the spray plate 9 .

[0028] It should be noted that the waste gas generated during coal chemical production is injected into the bottom of the inner cavity of the tower body 1 through the air inlet pipe 2, the waste gas rises in the tower body 1, and the waste gas passes through the No. 1 filler 5 and the No. 2 filler 7. The water is evenly sprayed on the No. 2 filler 7 through the spray plate 9. The water drips downward under the action of gravity. In the process of dripping downward, the water meets the rising waste gas, which can play the role of spraying cooling and water filtering on the waste gas. The water drips into the liquid distribution plate 6, and the liquid can be distributed through the liquid distribution plate 6 so that the liquid can be evenly dripped into the No. 1 filler 5, which can realize secondary spraying of the waste gas. At the same time, the fan 12 blows downward above the No. 1 filler 5 and the No. 2 filler 7, which can reduce the rising speed of the waste gas and increase the time for the waste gas to pass through the No. 1 filler 5 and the No. 2 filler 7, so that the waste gas can better contact with the falling water, thereby improving the treatment effect of the waste gas.

[0029] In this embodiment, if Figure 2 and Figure 3 As shown, a fixed pressure plate 8 is provided on the top surface of the No. 2 filler 7 , and the fixed pressure plate 8 is located below the spray plate 9 .

[0030] It should be noted that the fixed pressure plate 8 can fix the No. 2 filler 7 .

[0031] In this embodiment, if Figure 2 and Figure 3 As shown, a water injection pipe 10 is connected to one side of the spray plate 9 , and the water injection pipe 10 is conductively connected to the tower body 1 . A water pump 11 is installed at one end of the water injection pipe 10 away from the spray plate 9 , and the water pump 11 is fixed on the surface of the tower body 1 .

[0032] It should be noted that the water pump 11 extracts the water liquid and injects the water liquid into the spray plate 9 through the water injection pipe 10, and the water liquid is evenly sprayed on the No. 2 filler 7 through the spray plate 9.

[0033] In this embodiment, if Figure 1 and Figure 3 As shown, a drainage pipe 13 is connected to the bottom of the outer wall of the tower body 1 , and the height of the drainage pipe 13 is lower than the height of the air inlet pipe 2 .

[0034] It should be noted that the dripping waste water can be discharged through the drain pipe 13 , and the height of the drain pipe 13 is lower than the height of the air intake pipe 2 , which can prevent the waste water from flowing back into the air intake pipe 2 .

[0035] In this embodiment, if Figure 3 and Figure 4As shown, a driving motor 14 is installed on the lower surface of the tower body 1, and the power output end of the driving motor 14 penetrates the bottom cavity wall of the tower body 1, and the power output end of the driving motor 14 is transmission-connected to a rotating frame 15, and rubber scrapers 16 are embedded on the bottom surface and outer wall surface of the rotating frame 15, and the rubber scrapers 16 are respectively abutted against the inner wall and bottom surface of the tower body 1.

[0036] It should be noted that the driving motor 14 drives the rotating frame 15 , and the rotating frame 15 can scrape away the stains adhering to the inner wall and bottom of the tower body 1 through the rubber scraper 16 , and can clean the water storage cavity wall at the bottom of the inner cavity of the tower body 1 .

[0037] The working principle and use process of the utility model are as follows: the waste gas generated during coal chemical production is injected into the bottom of the inner cavity of the tower body 1 through the air inlet pipe 2, the waste gas rises in the tower body 1, and the waste gas passes through the No. 1 filler 5 and the No. 2 filler 7. At the same time, the water pump 11 extracts the water liquid, and injects the water liquid into the spray plate 9 through the water injection pipe 10, and the water liquid is evenly sprayed on the No. 2 filler 7 through the spray plate 9. The water liquid drips downward under the action of gravity. In the process of dripping downward, the water liquid meets the rising waste gas, which can play the role of spraying, cooling and water filtering the waste gas. The water liquid drips into the liquid distribution plate 6, and the liquid can be distributed through the liquid distribution plate 6, so that the liquid It can evenly drip into the No. 1 filler 5, and realize secondary spraying of the exhaust gas. At the same time, the fan 12 blows air downward above the No. 1 filler 5 and the No. 2 filler 7, which can reduce the rising speed of the exhaust gas and increase the time for the exhaust gas to pass through the No. 1 filler 5 and the No. 2 filler 7, so that the exhaust gas can better contact with the falling water, thereby improving the treatment effect of the exhaust gas. The treated gas is discharged through the exhaust pipe 3, and the dripping waste water can be discharged through the drain pipe 13. The driving motor 14 drives the rotating frame 15, and the rotating frame 15 can scrape off the stains adhering to the inner wall and bottom of the tower body 1 through the rubber scraper 16, and the water storage cavity wall at the bottom of the inner cavity of the tower body 1 can be cleaned.

[0038] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims or the equivalent forms of such scope and boundaries.

Claims

1. A packed tower for coal chemical industry, comprising a tower body (1), an air inlet pipe (2) and an exhaust pipe (3), wherein the air inlet pipe (2) is conductively connected to the bottom of the side wall of the tower body (1), and the exhaust pipe (3) is conductively connected to the top of the tower body (1), characterized in that: The inner wall of the tower body (1) is provided with a supporting bottom plate (4), the upper surface of the supporting bottom plate (4) is provided with a first filler (5), a second filler (7) is provided above the first filler (5), and a spray plate (9) is provided above the second filler (7); A liquid distribution plate (6) is provided between the first filler (5) and the second filler (7), the liquid distribution plate (6) abuts against the lower surface of the second filler (7), and fans (12) are installed on the lower surface of the liquid distribution plate (6) and above the spray plate (9).

2. A coal chemical packed tower according to claim 1, characterized in that: A fixed pressure plate (8) is provided on the top surface of the No. 2 filler (7), and the fixed pressure plate (8) is located below the spray plate (9).

3. A coal chemical packed tower according to claim 2, characterized in that: A water injection pipe (10) is connected to one side of the spray plate (9), and the water injection pipe (10) is conductively connected to the tower body (1).

4. A coal chemical packed tower according to claim 3, characterized in that: A water pump (11) is installed at one end of the water injection pipe (10) away from the spray plate (9), and the water pump (11) is fixed on the surface of the tower body (1).

5. A coal chemical packing tower according to claim 4, characterized in that: The bottom of the outer wall of the tower body (1) is connected to a drainage pipe (13), and the height of the drainage pipe (13) is lower than the height of the air inlet pipe (2).

6. A coal chemical packed tower according to claim 1, characterized in that: A drive motor (14) is installed on the lower surface of the tower body (1), a power output end of the drive motor (14) penetrates the bottom cavity wall of the tower body (1), and the power output end of the drive motor (14) is transmission-connected to a rotating frame (15).

7. A coal chemical packed tower according to claim 6, characterized in that: The bottom surface and the outer wall surface of the rotating frame (15) are both embedded with rubber scrapers (16), and the rubber scrapers (16) are respectively in contact with the inner wall and the bottom surface of the tower body (1).

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