Fermentation malodorous gas pretreatment device

Abstract

The utility model relates to the technical field of gas pretreatment, and discloses a fermentation malodorous gas pretreatment device, which comprises a spray tower, a circulating box and a scraper blade, one side of the circulating box is fixedly connected with the surface of the spray tower, the circulating box is communicated with the spray tower, an arc-shaped filter plate is fixedly arranged at the communicated part of the circulating box and the spray tower, and the scraper blade is fixedly connected with the spray tower. A spraying assembly is arranged in the spraying tower, a conveying assembly for conveying liquid to the spraying assembly is arranged in the circulating box, an extrusion assembly is arranged below the spraying assembly, the scraping plate is fixedly connected with the extrusion assembly, the scraping plate is tightly attached to the inner wall of the spraying tower, and a driving assembly for driving the extrusion assembly to rotate is arranged above the spraying assembly; the driving assembly is fixedly connected with the inner wall of the spraying tower, the filtering assembly for purifying gas is arranged above the driving assembly, the gas pipe is fixedly installed on the surface close to the bottom of the spraying tower, and impurities and dust on the inner wall of a spraying area are scraped through the rotating scraping plate, so that dirt is prevented from being formed on the inner wall of the spraying tower in the spraying area.

Description

Technical Field

[0001] This utility model relates to the field of gas pretreatment technology, and more specifically to a pretreatment device for fermentation odorous gases. Background Technology

[0002] In the waste management industry, during the processes of waste stacking, sorting, and composting, the fermentation of organic matter produces odorous gases such as hydrogen sulfide, ammonia, and volatile fatty acids. In order to ensure that these gases are discharged in compliance with standards, they need to be purified by spraying a spraying tower to meet emission standards. Most spraying towers use spraying reaction liquid to contact the odorous gases, thereby removing the odor, impurities, and dust from the gases and thus purifying them.

[0003] When existing spray towers come into contact with odorous gases through spray reaction liquid, the odorous gases contain impurities such as dust and particulate matter. During the spraying process, these impurities are carried by the spray liquid to the tower wall of the spray area. As the water evaporates, the dust and particulate matter adhere to the tower wall. Over time, this dust and particulate matter accumulates and forms a layer of dirt on the inner wall of the spray area. This dirt will cause some corrosion to the tower wall and shorten the service life of the equipment. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pretreatment device for fermentation odorous gas to solve the problems in the background art.

[0005] This utility model provides the following technical solution: a pretreatment device for fermentation odorous gas, including a spray tower and a circulation box, and also including a scraper. One side of the circulation box is fixedly connected to the surface of the spray tower, and the circulation box is connected to the spray tower. An arc-shaped filter plate is fixedly installed at the connection between the circulation box and the spray tower. A spray assembly is provided inside the spray tower. A conveying assembly for conveying liquid to the spray assembly is provided inside the circulation box. A squeezing assembly is provided below the spray assembly. The scraper is fixedly connected to the squeezing assembly and is in close contact with the inner wall of the spray tower. A driving assembly for driving the squeezing assembly to rotate is provided above the spray assembly. The driving assembly is fixedly connected to the inner wall of the spray tower. A filter assembly for purifying the gas is provided above the driving assembly. The filter assembly is connected to the inner wall of the spray tower. The spray assembly is fixedly connected to the driving assembly. A gas pipe is fixedly installed on the surface near the bottom of the spray tower and is connected to the spray tower.

[0006] Furthermore, the drive assembly includes a ring, a fixed plate, a motor, and a rotating rod. The ring is fixedly connected to the inner wall of the spray tower, and both ends of the fixed plate are fixedly connected to the ring. The motor is fixedly mounted on the fixed plate, and one end of the rotating rod is fixedly connected to the output end of the motor, while the other end passes through the fixed plate and is rotatably connected to the fixed plate.

[0007] Furthermore, the extrusion assembly includes a connecting plate, a slot, a first spring, and a connecting rod. The top of the connecting plate is fixedly connected to the other end of the rotating rod. The slot is opened on one side of the connecting plate. One end of the first spring is fixedly connected to the inner wall of the slot. The connecting rod is disposed inside the slot and slides in cooperation with the slot. One end of the connecting rod extends to the outside of the slot and is connected to the scraper by bolts. The other end of the first spring is fixedly connected to the connecting rod.

[0008] Furthermore, the spray assembly includes several nozzles, an annular pipe, and several support rods. The nozzles are arranged in an annular pattern at equal intervals on the annular pipe and located below the annular pipe. The support rods are fixedly connected to the annular pipe in an annular pattern at equal intervals, with their other ends fixedly connected to the ring. The nozzles are connected to the annular pipe.

[0009] Furthermore, the conveying components include a water pump and a water pipe. The water pump is fixedly installed on the inner wall of the circulation tank. The input end of the water pump is close to the bottom of the circulation tank. The water pipe is fixedly connected to the output end of the water pump. The other end of the water pipe passes through the top of the circulation tank and the surface of the spray tower, and is connected to the annular pipe. The water pipe is fixedly connected to the annular pipe, the circulation tank, and the spray tower.

[0010] Furthermore, the filter assembly includes a fixed ring, several connecting blocks, several second springs, an annular plate, and an activated carbon plate. The fixed ring is fixedly installed on the inner wall of the spray tower. The several connecting blocks are fixedly installed in an annular shape at equal intervals on the inner wall of the spray tower and are located above the several fixed rings. The annular plate is located between the fixed rings and the connecting blocks. The activated carbon plate is located between the fixed rings and the annular plate. One end of each of the several second springs is fixedly connected to the bottom of the corresponding connecting block, and the other end is fixedly connected to the annular plate.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] The drive assembly drives the connecting plate, the first spring, the connecting rod, and the scraper to rotate synchronously. The rotating scraper scrapes away impurities and dust on the walls of the spray area. The scraped dust and impurities fall along the scraper to the bottom of the spray tower with the reaction liquid. The rotating scraper comes into contact with the arc-shaped filter plate and scrapes off the solid particles on the arc-shaped filter plate, thereby ensuring the filtration performance of the arc-shaped filter plate and preventing dust and particulate matter from adhering to the inner wall of the spray tower, thus preventing the formation of dirt on the inner wall of the spray tower in the spray area. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the spray tower;

[0015] Figure 3 This is a schematic diagram of the internal structure of the spray tower;

[0016] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle.

[0017] The attached figures are labeled as follows: 1. Spray tower; 2. Circulation tank; 3. Scraper; 4. Arc-shaped filter plate; 5. Spray assembly; 501. Nozzle; 502. Annular pipe; 503. Support rod; 6. Conveying assembly; 601. Water pump; 602. Water pipe; 7. Extrusion assembly; 701. Connecting plate; 702. Groove; 703. First spring; 704. Connecting rod; 8. Drive assembly; 801. Ring; 802. Fixing plate; 803. Motor; 804. Rotating rod; 9. Filter assembly; 901. Fixing ring; 902. Connecting block; 903. Second spring; 904. Annular plate; 905. Activated carbon plate; 10. Air pipe. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0019] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Attached Figure 4 The present invention will be further described below.

[0020] This utility model discloses a pretreatment device for fermentation odorous gas, including a spray tower 1 and a circulation box 2, and also includes a scraper 3. One side of the circulation box 2 is fixedly connected to the surface of the spray tower 1, and the circulation box 2 is connected to the spray tower 1. An arc-shaped filter plate 4 is fixedly installed at the connection between the circulation box 2 and the spray tower 1. A spray assembly 5 is provided inside the spray tower 1. A conveying assembly 6 for conveying liquid to the spray assembly 5 is provided inside the circulation box 2. A squeezing assembly 7 is provided below the spray assembly 5. The scraper 3 is fixedly connected to the squeezing assembly 7 and is in close contact with the inner wall of the spray tower 1. A driving assembly 8 for driving the squeezing assembly 7 to rotate is provided above the spray assembly 5. The driving assembly 8 is fixedly connected to the inner wall of the spray tower 1. A filter assembly 9 for purifying the gas is provided above the driving assembly 8. The filter assembly 9 is connected to the inner wall of the spray tower 1. The spray assembly 5 is fixedly connected to the driving assembly 8. A gas pipe 10 is fixedly installed on the surface near the bottom of the spray tower 1 and is connected to the spray tower 1.

[0021] In this embodiment, two observation ports are vertically arranged on the surface of the spray tower 1. Each observation port is equipped with a rotating transparent glass door that seals the observation port. When in use, the exhaust port at the top of the spray tower 1 is connected to other purification equipment, and the gas pipe 10 is connected to the fermented odor, allowing the odor to enter the bottom of the spray tower 1 through the gas pipe 10. Initially, the reaction liquid is manually added to the spray tower 1 until the reaction liquid level reaches half the height of the arc-shaped filter plate 4. At this time, the reaction liquid is transported to the spray assembly 5 through the conveying component 6, and the reaction liquid is sprayed out through the spray assembly 5. The rising odor comes into contact with and reacts with the odor, thus ensuring the removal of odor, impurities, and dust from the odor. The reaction liquid falls to the bottom of the spray tower 1 or falls along the inner wall of the spray tower 1 to the bottom, where it mixes with the reaction liquid at the bottom of the spray tower 1. The reaction liquid entering the circulation tank 2 is filtered through the arc-shaped filter plate 4, thereby filtering out impurities in the odor and solid particles formed upon contact with the reaction, preventing fixed particles and impurities in the odor from entering the conveying component 6. During the spraying operation, the drive component 8 simultaneously drives the extrusion component 7 and the scraper. 3 rotates, and the rotating scraper 3 scrapes the inner wall of the spray tower 1 in the spray area, scraping away the dust and impurities adsorbed on the inner wall of the spray tower 1. The scraped dust and impurities will fall to the bottom of the spray tower 1 along with the reaction liquid along the scraper 3, preventing dust and particulate matter from adhering to the inner wall of the spray tower 1. The rotating scraper 3 will contact the arc-shaped filter plate 4, scraping off the solid particles on the arc-shaped filter plate 4, thereby ensuring the filtration performance of the arc-shaped filter plate 4. The rising gas in the spray area passes through the filter assembly 9, and the gas is filtered by the filter assembly 9. The gas undergoes further deodorization and purification. The gas purified by the filter assembly 9 rises and is discharged from the exhaust port at the top of the spray tower 1 to other purification equipment. When the odor purification work is completed and the reaction liquid needs to be replaced, the operator opens the valve on the drain pipe at the bottom of the spray tower 1 to discharge the reaction liquid through the drain pipe. During the spraying operation, the valve on the drain pipe is closed, and the bottom glass door can be opened to inject new reaction liquid. The reaction liquid is the same as that in the Chinese utility model with announcement number CN214319704U.

[0022] Specifically, the drive assembly 8 includes a ring 801, a fixed plate 802, a motor 803, and a rotating rod 804. The ring 801 is fixedly connected to the inner wall of the spray tower 1. Both ends of the fixed plate 802 are fixedly connected to the ring 801. The motor 803 is fixedly mounted on the fixed plate 802. One end of the rotating rod 804 is fixedly connected to the output end of the motor 803, and the other end passes through the fixed plate 802 and is rotatably connected to the fixed plate 802. The extrusion assembly 7 includes a connecting plate 701, a slot 702, and... The first spring 703 and the connecting rod 704 are connected. The top of the connecting plate 701 is fixedly connected to the other end of the rotating rod 804. The slot 702 is opened on one side of the connecting plate 701. One end of the first spring 703 is fixedly connected to the inner wall of the slot 702. The connecting rod 704 is set in the slot 702 and slides in cooperation with the slot 702. One end of the connecting rod 704 extends to the outside of the slot 702 and is connected to the scraper 3 by bolts. The other end of the first spring 703 is fixedly connected to the connecting rod 704.

[0023] In this embodiment, the motor 803 is externally powered and serves to control the motor 803. When spraying is in progress, the external power supply powers the motor 803, starting it and driving the rotating rod 804 to rotate. The rotating rod 804 drives the connecting plate 701, the first spring 703, the connecting rod 704, and the scraper 3 to rotate synchronously. The rotating scraper 3 scrapes away impurities and dust on the walls of the spraying area. The scraped dust and impurities fall along the scraper 3 to the bottom of the spray tower 1 along with the reaction liquid. The rotating scraper 3 comes into contact with the arc-shaped filter plate 4, which will abrade the surface of the arc-shaped filter plate 4. Solid particles are scraped off to ensure the filtration performance of the arc-shaped filter plate 4, preventing dust and particulate matter from adhering to the inner wall of the spray tower 1, thus preventing the formation of dirt on the inner wall of the spray tower 1 in the spraying area. When the spraying work is finished and the motor 803 is de-energized, the scraper 3 is kept in contact with the inner wall of the spray tower 1 by the elastic force of the first spring 703. After a period of use, the scraper 3 will wear out because the scraper 3 is connected to the connecting rod 704 by bolts. The operator opens the bottom glass door, unscrews the bolt connection between the scraper 3 and the connecting rod 704, and replaces the scraper 3 with a new one.

[0024] Specifically, the spray assembly 5 includes several nozzles 501, an annular pipe 502, and several support rods 503. The nozzles 501 are arranged in an annular pattern at equal intervals on the annular pipe 502 and located below the annular pipe 502. The support rods 503 are also arranged in an annular pattern at equal intervals and are fixedly connected to the annular pipe 502. The other end of each support rod is fixedly connected to a circular ring 801. The nozzles 501 are connected to the annular pipe 502. The conveying assembly 6 includes a water pump 601 and a water pipe 602. The water pump 601 is fixedly installed on the inner wall of the circulation tank 2. The input end of the water pump 601 is close to the bottom of the circulation tank 2. The water pipe 602 is fixedly connected to the output end of the water pump 601. The other end of the water pipe 602 passes through the top of the circulation tank 2 and the surface of the spray tower 1 and is connected to the annular pipe 502. The water pipe 602 is fixedly connected to the annular pipe 502, the circulation tank 2, and the spray tower 1.

[0025] In this embodiment, when the odor enters the spray tower 1, the water pump 601 is connected to an external power source and controlled to operate. The water pump 601 is a QBY-50 diaphragm pump in the prior art, which will not be explained here. The water pump 601 transports the reaction liquid at the bottom of the circulation tank 2 to the water pipe 602. The reaction liquid enters the annular pipe 502 through the water pipe 602 and is sprayed out through several nozzles 501. The sprayed reaction liquid comes into contact with the rising odor and reacts, thereby carrying away the odor, impurities and dust in the odor and falling to the bottom of the spray tower 1.

[0026] Specifically, the filter assembly 9 includes a fixing ring 901, several connecting blocks 902, several second springs 903, an annular plate 904, and an activated carbon plate 905. The fixing ring 901 is fixedly installed on the inner wall of the spray tower 1. The several connecting blocks 902 are fixedly installed in an annular shape at equal intervals on the inner wall of the spray tower 1 and are located above the several fixing rings. The annular plate 904 is located between the fixing ring 901 and the connecting blocks 902. The activated carbon plate is located between the fixing ring and the annular plate. One end of each of the several second springs 903 is fixedly connected to the bottom of the corresponding connecting block 902, and the other end is fixedly connected to the annular plate 904.

[0027] In this implementation scheme, the sprayed gas rises to the activated carbon plate 905 and is purified by adsorbing odors and harmful substances in the gas. The gas purified by the activated carbon plate 905 is discharged from the exhaust port at the top of the spray tower 1 to other purification equipment. After the activated carbon plate 905 has been used for a period of time, in its initial state, the activated carbon plate 905 is located on the fixed ring 901 and the top edge of the activated carbon plate 905 is squeezed by the annular plate 904. When a new activated carbon plate 905 needs to be replaced, the operator opens the top glass door and pulls the annular plate 904 upward. The annular plate 904 squeezes several second springs 903 and no longer squeezes the top of the activated carbon plate 905. At this time, the operator removes the activated carbon plate 905 from the observation port, places the new activated carbon plate 905 on the fixed ring 901, and no longer pulls the annular plate 904. The annular plate 904 rebounds through several second springs 903, causing the bottom of the annular plate 904 to squeeze the edge of the activated carbon plate 905. At this time, the replacement is completed.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A pretreatment device for fermentation odorous gases, comprising a spray tower (1) and a circulation tank (2), characterized in that: It also includes a scraper (3), one side of the circulation box (2) is fixedly connected to the surface of the spray tower (1), the circulation box (2) is connected to the spray tower (1), an arc-shaped filter plate (4) is fixedly installed at the connection between the circulation box (2) and the spray tower (1), a spray assembly (5) is provided inside the spray tower (1), a conveying assembly (6) for conveying liquid to the spray assembly (5) is provided inside the circulation box (2), a squeezing assembly (7) is provided below the spray assembly (5), the scraper (3) is fixedly connected to the squeezing assembly (7), the scraper (3) The spray assembly (5) is in close contact with the inner wall of the spray tower (1). A drive assembly (8) is provided above the spray assembly (5) to drive the extrusion assembly (7) to rotate. The drive assembly (8) is fixedly connected to the inner wall of the spray tower (1). A filter assembly (9) for purifying the gas is provided above the drive assembly (8). The filter assembly (9) is connected to the inner wall of the spray tower (1). The spray assembly (5) is fixedly connected to the drive assembly (8). An air pipe (10) is fixedly installed on the surface near the bottom of the spray tower (1). The air pipe (10) is connected to the spray tower (1).

2. The fermentation odor gas pretreatment device according to claim 1, characterized in that: The drive assembly (8) includes a ring (801), a fixed plate (802), a motor (803), and a rotating rod (804). The ring (801) is fixedly connected to the inner wall of the spray tower (1). Both ends of the fixed plate (802) are fixedly connected to the ring (801). The motor (803) is fixedly installed on the fixed plate (802). One end of the rotating rod (804) is fixedly connected to the output end of the motor (803), and the other end passes through the fixed plate (802) and is rotatably connected to the fixed plate (802).

3. The fermentation odor gas pretreatment device according to claim 2, characterized in that: The extrusion assembly (7) includes a connecting plate (701), a slot (702), a first spring (703), and a connecting rod (704). The top of the connecting plate (701) is fixedly connected to the other end of the rotating rod (804). The slot (702) is opened on one side of the connecting plate (701). One end of the first spring (703) is fixedly connected to the inner wall of the slot (702). The connecting rod (704) is set inside the slot (702) and slides in cooperation with the slot (702). One end of the connecting rod (704) extends to the outside of the slot (702) and is connected to the scraper (3) by bolts. The other end of the first spring (703) is fixedly connected to the connecting rod (704).

4. The fermentation odor gas pretreatment device according to claim 2, characterized in that: The spray assembly (5) includes several nozzles (501), an annular tube (502) and several support rods (503). The nozzles (501) are arranged in an annular shape at equal intervals on the annular tube (502) and located below the annular tube (502). The support rods (503) are fixedly connected to the annular tube (502) in an annular shape at equal intervals, and the other end is fixedly connected to a circular ring (801). The nozzles (501) are connected to the annular tube (502).

5. The fermentation odor gas pretreatment device according to claim 4, characterized in that: The conveying assembly (6) includes a water pump (601) and a water pipe (602). The water pump (601) is fixedly installed on the inner wall of the circulation tank (2). The input end of the water pump (601) is close to the bottom of the circulation tank (2). The water pipe (602) is fixedly connected to the output end of the water pump (601). The other end of the water pipe (602) passes through the top of the circulation tank (2) and the surface of the spray tower (1) and is connected to the annular pipe (502). The water pipe (602) is fixedly connected to the annular pipe (502), the circulation tank (2) and the spray tower (1).

6. The fermentation odor gas pretreatment device according to claim 1, characterized in that: The filter assembly (9) includes a fixed ring (901), several connecting blocks (902), several second springs (903), an annular plate (904), and an activated carbon plate (905). The fixed ring (901) is fixedly installed on the inner wall of the spray tower (1). Several connecting blocks (902) are fixedly installed in an annular shape at equal intervals on the inner wall of the spray tower (1) and located above the fixed ring (901). The annular plate (904) is located between the fixed ring (901) and the connecting blocks (902). The activated carbon plate (905) is located between the fixed ring (901) and the annular plate (904). One end of each of the several second springs (903) is fixedly connected to the bottom of the corresponding connecting block (902), and the other end is fixedly connected to the annular plate (904).

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