Tower-type acid-making tail gas purification device

Abstract

The utility model discloses a tower-type acid-making tail gas purification device, and relates to the technical field of sulfuric acid production and related equipment thereof. The tail gas purification tower comprises a tower body and a tail gas pipe arranged below the outer wall of one side of the tower body, the other end of the tail gas pipe is connected with a first fan through a pipe joint, the air inlet end of the first fan is connected with a suction hood through a pipe joint, a filtering assembly is arranged in the suction hood, and turbulent flow assemblies are arranged on the upper portion and the lower portion in the tower body. Through the turbulent flow assembly and the filtering assembly, the turbulent flow plates on the outer walls of the second rotating shaft and the third rotating shaft can rotate in opposite directions, internal tail gas flow is disturbed, the purposes of delaying the tail gas flow speed and enabling the tail gas to be fully purified and reacted are achieved, the purification effect is improved, and the rotating plates and the cleaning brushes on the inner walls of the rotating plates rotate, so that the cleaning effect is improved. The outer wall of the filter screen can be cleaned, it is avoided that a large number of impurities adhere to the surface of the filter screen, the tail gas suction efficiency is affected, and the labor amount and labor intensity of workers can be relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sulfuric acid production and related equipment, in particular to a tower type acid production tail gas purification device. Background Art

[0002] With the development of science and technology, equipment in various fields has been greatly improved. Sulfuric acid is an important industrial raw material that can be used to make fertilizers, medicines, explosives, etc. It is also widely used in industries such as petroleum purification and metal smelting. Sulfuric acid will produce tail gas that pollutes the environment during the production process, so it is generally necessary to use purification equipment to purify the tail gas produced to reduce damage to the ecological environment.

[0003] After searching, publication number CN109316930A, application date 2018.10.13 discloses a chemical acid tail gas purification device, including a tower body, an air inlet is provided on one side of the bottom of the tower body, an air outlet is provided on the top of the tower body, an acid washing tank is provided at the bottom of the tower body, a water tank is provided on the top of the acid washing tank, a first partition is provided on the top of the water tank, a first packing layer is provided on the top of the first partition, a first spray layer is provided on the top of the first packing layer, a second partition is provided on the top of the first spray layer, and a second packing layer is provided on the top of the second partition.

[0004] However, it still has the following disadvantages in actual use:

[0005] The above-mentioned chemical acid tail gas purification device purifies the tail gas through the acid washing box, the first spray layer, the second spray layer, etc. when in use. However, after the tail gas enters at a high speed, due to the high air flow speed, the tail gas is prone to escape without reacting, resulting in insufficient purification reaction and poor purification effect.

[0006] The above-mentioned chemical acid production tail gas purification device filters large particle impurities in the tail gas through the first filter when in use. However, after a long period of filtration, a large amount of impurities will be attached to the filter surface, which will affect the exhaust gas suction efficiency, and manual cleaning will increase the workload. Utility Model Content

[0007] The utility model aims to provide a tower-type acid-making tail gas purification device. Through the spoiler component and the filter component, the spoiler plates on the outer walls of the second rotating shaft and the third rotating shaft can rotate in opposite directions to disturb the internal tail gas flow, thereby achieving the purpose of delaying the tail gas flow rate and making it fully purified and reacted, thereby improving the purification effect, and the cleaning brush on the rotating plate and its inner wall can be rotated to clean the outer wall of the filter screen, thereby avoiding a large amount of impurities adhering to the surface of the filter screen and affecting the efficiency of tail gas suction, and can reduce the workload and labor intensity of the staff.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model discloses a tower-type acid-making tail gas purification device, comprising a tower body and a tail gas pipe arranged below the outer wall of one side thereof, the other end of the tail gas pipe is connected to a first fan through a pipe joint, the air inlet end of the first fan is connected to an air suction hood through a pipe joint, a filter assembly is arranged inside the air suction hood, and spoiler assemblies are arranged above and below the inside of the tower body;

[0010] The filter assembly includes a bracket and a rotating rod installed in a bearing at the center position of one end surface of the bracket, and one end of the rotating rod passes through the bearing at the center position of one end surface of the bracket and is connected to the fan blade;

[0011] The spoiler assembly includes a motor and a first rotating shaft installed on its output shaft through a coupling, and the other end of the first rotating shaft sequentially passes through a bearing on an outer wall of one side of the tower body and a first pulley and is connected to a first gear disc.

[0012] Furthermore, a partition is fixedly connected to the lower part of the inner wall of the tower body, an acid washing box is arranged directly below the partition, and air permeable plates are evenly installed from top to bottom directly above the partition.

[0013] Furthermore, a packing layer is arranged on the upper surface of the air permeable plate, and a demister, a cooling fan and an adsorption layer are arranged in sequence from bottom to top on the inner top of the tower body.

[0014] Furthermore, an exhaust pipe is arranged at the top center of the tower body, the other end of the exhaust pipe is connected to the second fan through a pipe joint, and a spray mechanism is arranged on the outside of the outer wall on the other side of the tower body.

[0015] Furthermore, the other end of the rotating rod passes through the bearing at the center of one end surface of the filter and is connected to the rotating plate. Cleaning brushes are provided at both front and rear ends of the inner wall of the rotating plate, and the outer wall of the bracket and the filter are installed on the inner wall of the air intake hood.

[0016] Furthermore, the outer wall of the first pulley is connected to the second pulley through a belt, and a second rotating shaft is installed at the center position of the inner wall of the second pulley.

[0017] Furthermore, two ends of the second rotating shaft respectively pass through two ends of the second pulley and are connected to bearings on the inner wall adjacent to the tower body. A second toothed disc is arranged on one side of the first toothed disc, and a third rotating shaft is installed at the center of the inner wall of the second toothed disc.

[0018] Furthermore, two ends of the third rotating shaft respectively pass through two ends of the second gear plate and are connected to bearings on the inner wall adjacent to the tower body, and spoilers are sleeved on the outer walls of the second rotating shaft and the third rotating shaft.

[0019] The utility model has the following beneficial effects:

[0020] The utility model provides a spoiler assembly, and the motor operates under the transmission action of various components to cause the spoiler plates on the outer walls of the second rotating shaft and the third rotating shaft to rotate in opposite directions, thereby disturbing the internal exhaust gas flow, thereby delaying the exhaust gas flow rate, allowing it to fully purify the reaction, and improving the purification effect.

[0021] The utility model provides a filter assembly, and the airflow generated in the process of extracting exhaust gas will cause the fan blades to rotate, and the rotating plate and the cleaning brush on the inner wall thereof will rotate under the action of the rotating rod, so as to clean the outer wall of the filter screen and avoid a large amount of impurities adhering to the surface of the filter screen and affecting the efficiency of exhaust gas suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0023] Figure 1 It is a structural schematic diagram of a tower-type acid-making tail gas purification device;

[0024] Figure 2 It is a cross-sectional view of a tower-type acid-making tail gas purification device;

[0025] Figure 3 It is a structural diagram of the filtering component;

[0026] Figure 4 This is a structural diagram of the spoiler component.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Tower body; 101. tail gas pipe; 102. first fan; 103. suction hood; 104. acid washing box; 105. partition; 106. air permeable plate; 107. packing layer; 108. demister; 109. air cooler; 1010. adsorption layer; 1011. exhaust pipe; 1012. second fan; 1013. spray mechanism; 2. filter assembly; 201. bracket; 202. rotating rod; 203. fan blade; 204. filter screen; 205. rotating plate; 2051. cleaning brush; 3. spoiler assembly; 301. motor; 302. first rotating shaft; 3021. first pulley; 3022. first gear disc; 303. second rotating shaft; 3031. second pulley; 304. third rotating shaft; 3041. second gear disc; 305. spoiler. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] See also Figures 1 to 3As shown, the utility model is a tower-type acid-making tail gas purification device, comprising a tower body 1 and a tail gas pipe 101 arranged below the outer wall of one side thereof, the other end of the tail gas pipe 101 is connected to a first fan 102 through a pipe joint, the air inlet end of the first fan 102 is connected to an air suction hood 103 through a pipe joint, a filter assembly 2 is arranged inside the air suction hood 103, and the pipe joint plays the role of pipeline connection;

[0031] The filter assembly 2 includes a bracket 201 and a rotating rod 202 installed in a bearing at the center of one end surface of the bracket 201. One end of the rotating rod 202 passes through the bearing at the center of one end surface of the bracket 201 and is connected to the fan blade 203. The bracket 201 supports and assists the rotation of the rotating rod 202.

[0032] A partition 105 is fixedly connected to the lower part of the inner wall of the tower body 1, an acid washing box 104 is arranged directly below the partition 105, and air permeable plates 106 are evenly installed from top to bottom directly above the partition 105; a packing layer 107 is arranged on the upper surface of the air permeable plate 106, and a demister 108, a cooling fan 109 and an adsorption layer 1010 are arranged in sequence from bottom to top on the inner top of the tower body 1;

[0033] An exhaust pipe 1011 is provided at the top center of the tower body 1, and the other end of the exhaust pipe 1011 is connected to the second fan 1012 through a pipe joint. A spray mechanism 1013 is provided on the outer side of the outer wall of the other side of the tower body 1;

[0034] The other end of the rotating rod 202 passes through the bearing at the center of the end surface of one side of the filter screen 204 and is connected to the rotating plate 205. Cleaning brushes 2051 are provided at both the front and rear ends of the inner wall of the rotating plate 205. The outer wall of the bracket 201 and the filter screen 204 are both installed on the inner wall of the suction cover 103. The fan blades 203 and the rotating plate 205 are both located on the outer wall of the rotating rod 202, and the three move synchronously.

[0035] When the above arrangement is used, the first fan 102 is started, and the first fan 102 operates to suck the tail gas generated in the acid production process through the suction hood 103, and then enters the tower body 1 through the tail gas pipe 101, and then passes through the acid washing box 104, the air permeable plate 106, the packing layer 107, the demister 108, the cold air fan 109, the adsorption layer 1010 and the spraying action of the spray mechanism 1013. After purification, it is discharged by the second fan 1012 through the exhaust pipe 1011. The process and the designed equipment are all prior art, so they are not described in detail here. In the process of sucking the tail gas Under the action of the filter 204, large particles contained in the exhaust gas can be discharged. Since the first fan 102 generates suction, it will drive the fan blades 203 to rotate, and the fan blades 203 and the rotating plate 205 are all located on the outer wall of the rotating rod 202. The three can move synchronously, so when the fan blades 203 rotate, the rotating plate 205 will be driven to rotate under the action of the rotating rod 202, and the outer wall of the filter 204 can be cleaned by the cleaning brush 2051 on the inner wall of the rotating plate 205, so as to avoid a large amount of impurities adhering to the surface of the filter 204, affecting the efficiency of exhaust gas suction, and can reduce the workload and labor intensity of the staff.

[0036] Among them Figure 2 , 4 As shown, a spoiler assembly 3 is provided above and below the inside of the tower body 1. The spoiler assembly 3 includes a motor 301 and a first rotating shaft 302 installed on its output shaft through a coupling. The other end of the first rotating shaft 302 sequentially passes through a bearing and a first pulley 3021 on an outer wall of one side of the tower body 1 and is connected to a first toothed disc 3022. The operation of the motor 301 drives the first rotating shaft 302 and the first pulley 3021 and the first toothed disc 3022 on the outer wall thereof to rotate.

[0037] The outer wall of the first pulley 3021 is connected to the second pulley 3031 through a belt, and a second rotating shaft 303 is installed at the center of the inner wall of the second pulley 3031. The first pulley 3021 and the second pulley 3031 are connected under the action of the belt to play a transmission role;

[0038] The two ends of the second rotating shaft 303 respectively penetrate the two ends of the second pulley 3031 and are connected to the bearings on the adjacent inner wall of the tower body 1. A second toothed disc 3041 is provided on one side of the first toothed disc 3022. The third rotating shaft 304 is installed at the center of the inner wall of the second toothed disc 3041. The gears on the outer wall of the first toothed disc 3022 are meshed with the gears on the outer wall of the second toothed disc 3041 to play a transmission role.

[0039] The two ends of the third rotating shaft 304 respectively penetrate the two ends of the second gear plate 3041 and are connected to the bearings on the adjacent inner wall of the tower body 1. The outer walls of the second rotating shaft 303 and the third rotating shaft 304 are both sleeved with spoilers 305. The surface of the spoiler 305 is provided with a plurality of spoiler holes to reduce the exhaust gas velocity.

[0040] When the above arrangement is in use, during the process of spraying and purifying the exhaust gas by using the spray mechanism 1013, the upper and lower motors 301 are started, and the output shaft of the motor 301 rotates to drive the first rotating shaft 302 to rotate through the coupling, and the first pulley 3021 and the first toothed disc 3022 are both located on the outer wall of the first rotating shaft 302. Therefore, when the first rotating shaft 302 rotates, the first pulley 3021 and the first toothed disc 3022 will be driven to rotate, and because the outer wall of the first pulley 3021 is connected to the second pulley 3031 through a belt, The gear on the outer wall of the first toothed disc 3022 is meshed with the gear on the outer wall of the second toothed disc 3041. Therefore, when the first pulley 3021 and the first toothed disc 3022 rotate, the second pulley 3031 and the second toothed disc 3041 will be driven to rotate, and the second rotating shaft 303 and the third rotating shaft 304 will rotate in opposite directions, thereby making the spoilers 305 on the outer walls of the two rotate in opposite directions, disturbing the internal exhaust gas flow, thereby achieving the purpose of slowing down the exhaust gas flow rate, allowing it to fully purify the reaction, and improving the purification effect.

[0041] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A tower-type acid-making tail gas purification device, comprising a tower body (1) and a tail gas pipe (101) arranged below the outer wall of one side thereof, the other end of the tail gas pipe (101) being connected to a first fan (102) through a pipe joint, and the air inlet end of the first fan (102) being connected to an air intake hood (103) through a pipe joint, characterized in that: A filter assembly (2) is arranged inside the air suction hood (103), and spoiler assemblies (3) are arranged above and below the tower body (1); The filter assembly (2) comprises a bracket (201) and a rotating rod (202) installed in a bearing at the center position of one end surface of the bracket (201), one end of the rotating rod (202) passing through the bearing at the center position of one end surface of the bracket (201) and connected to the fan blade (203); The spoiler assembly (3) comprises a motor (301) and a first rotating shaft (302) mounted on the output shaft thereof via a coupling, the other end of the first rotating shaft (302) sequentially passing through a bearing on an outer wall of one side of the tower body (1) and a first pulley (3021) to be connected to a first gear disc (3022).

2. A tower type acid production tail gas purification device according to claim 1, characterized in that: A partition (105) is fixedly connected to the lower part of the inner wall of the tower body (1), an acid washing box (104) is arranged directly below the partition (105), and air permeable plates (106) are evenly spaced from top to bottom directly above the partition (105).

3. A tower type acid production tail gas purification device according to claim 2, characterized in that: A packing layer (107) is provided on the upper surface of the air permeable plate (106), and a demister (108), a cooling fan (109) and an adsorption layer (1010) are provided in sequence from bottom to top at the inner top of the tower body (1).

4. A tower type acid production tail gas purification device according to claim 3, characterized in that: An exhaust pipe (1011) is arranged at the center of the top of the tower body (1); the other end of the exhaust pipe (1011) is connected to a second fan (1012) via a pipe joint; and a spray mechanism (1013) is arranged on the outside of the outer wall on the other side of the tower body (1).

5. A tower type acid-making tail gas purification device according to claim 1, characterized in that: The other end of the rotating rod (202) passes through a bearing at the center of an end surface of one side of the filter screen (204) and is connected to a rotating plate (205); cleaning brushes (2051) are provided at both the front and rear ends of the inner wall of the rotating plate (205); and the outer wall of the bracket (201) and the filter screen (204) are both mounted on the inner wall of the suction hood (103).

6. A tower type acid-making tail gas purification device according to claim 1, characterized in that: The outer wall of the first belt pulley (3021) is connected to the second belt pulley (3031) via a belt, and a second rotating shaft (303) is installed at the center of the inner wall of the second belt pulley (3031).

7. A tower type acid production tail gas purification device according to claim 6, characterized in that: The two ends of the second rotating shaft (303) respectively pass through the two ends of the second pulley (3031) and are connected to bearings on the adjacent inner wall of the tower body (1); a second toothed disc (3041) is provided on one side of the first toothed disc (3022); and a third rotating shaft (304) is installed at the center of the inner wall of the second toothed disc (3041).

8. A tower type acid-making tail gas purification device according to claim 7, characterized in that: The two ends of the third rotating shaft (304) respectively pass through the two ends of the second gear disc (3041) and are connected to bearings on the adjacent inner wall of the tower body (1); spoilers (305) are sleeved on the outer walls of the second rotating shaft (303) and the third rotating shaft (304).

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