A sludge low-temperature biological drying waste gas treatment device

Abstract

This utility model discloses a sludge low-temperature biological drying waste gas treatment device, relating to the field of sludge drying waste gas treatment technology. It includes a base plate and a spray tower. The spray tower is fixedly installed on one side of the upper surface of the base plate, and an exhaust fan is fixedly installed on the other side of the upper surface of the base plate. The exhaust fan's outlet is connected to the spray tower's inlet via a connecting pipe. A filter screen is installed at the exhaust fan's inlet, and a U-shaped scraper is abutted against the outer side of the filter screen. A U-shaped transmission plate is fixedly connected to the upper side of the U-shaped scraper, and a first transmission mechanism for moving the U-shaped scraper is provided on the upper side of the exhaust fan. This utility model can filter large particulate impurities in the waste gas during the extraction process, minimizing the entry of impurities into the exhaust fan and extending its service life. It also automatically cleans the filter plate, effectively preventing filter plate clogging.

Description

Technical Field

[0001] This utility model relates to the field of sludge drying waste gas treatment technology, specifically to a sludge low-temperature biological drying waste gas treatment device. Background Technology

[0002] With increasingly stringent environmental protection requirements, low-temperature biological drying technology for sludge has been widely applied. However, this process generates a large amount of waste gas containing impurities. Direct emission of this waste gas would cause serious environmental pollution. Therefore, effective treatment of this waste gas is necessary.

[0003] Currently, in common waste gas treatment devices, large particulate impurities in the waste gas can easily enter the exhaust fan during the extraction process. This not only affects the normal operation of the exhaust fan but also shortens its service life. Furthermore, the filter plates in existing waste gas treatment devices are prone to clogging by impurities after a period of use, leading to a decrease in filtration efficiency and requiring frequent manual cleaning. This not only increases labor intensity but also affects production efficiency. Utility Model Content

[0004] In view of the problems existing in the above-mentioned low-temperature biological drying waste gas treatment device for sludge, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a sludge low-temperature biological drying waste gas treatment device, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sludge low-temperature biological drying waste gas treatment device includes a base plate and a spray tower. The spray tower is fixedly installed on one side of the upper surface of the base plate, and an exhaust fan is fixedly installed on the other side of the upper surface of the base plate. The exhaust fan's outlet is connected to the spray tower's inlet through a connecting pipe. A filter screen is installed at the exhaust fan's inlet, and a U-shaped scraper is abutted against the outer side of the filter screen. A U-shaped transmission plate is fixedly connected to the upper side of the U-shaped scraper, and a first transmission mechanism for moving the U-shaped scraper is provided on the upper side of the exhaust fan.

[0008] Preferably, the first transmission mechanism includes a turntable and a round pin. A vertical plate is fixedly installed on the upper surface of the exhaust fan and on the side near the spray tower. A crossbar is rotatably sleeved on the middle of the vertical plate. The turntable is fixedly sleeved on the side of the crossbar near the U-shaped transmission plate. The round pin is eccentrically set on the side of the turntable near the U-shaped transmission plate. A strip-shaped opening is opened in the middle of the upper end of the U-shaped transmission plate. One end of the round pin passes through the strip-shaped opening. A second transmission mechanism that drives the crossbar to rotate is provided inside the connecting pipe.

[0009] Preferably, the second transmission mechanism includes an impeller and a transmission rod. The transmission rod is rotatably sleeved on the upper side of the inside of the connecting pipe. The impeller is disposed inside the connecting pipe and fixedly sleeved with the transmission rod. The upper end of the transmission rod extends to the outside of the connecting pipe. A first bevel gear is fixedly sleeved on the upper end of the transmission rod. A second bevel gear is fixedly sleeved on the end of the crossbar near the transmission rod. The first bevel gear and the second bevel gear are meshed and connected.

[0010] Preferably, the front and rear outer walls of the exhaust fan are fixedly provided with limiting shells at positions corresponding to the U-shaped transmission plate, and both ends of the U-shaped transmission plate pass through the corresponding limiting shells.

[0011] Preferably, both ends of the transmission rod are rotatably connected to the inner wall of the connecting pipe via sealed bearings.

[0012] Preferably, the ratio of the number of teeth of the first bevel gear and the second bevel gear is 1:30.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model, by installing a filter screen at the air inlet of the exhaust fan, can filter out large particulate impurities and effectively extend the service life of the exhaust fan.

[0015] 2. In this utility model, exhaust gas is sent into the spray tower for treatment through the exhaust port of the exhaust fan and the connecting pipe. During this process, the exhaust gas will drive the impeller to rotate, which will cause the transmission rod to rotate. Through the transmission of the first bevel gear and the second bevel gear, the crossbar drives the turntable to rotate, which in turn causes the round pin to rotate around the crossbar as the axis. During this process, the round pin slides in the strip-shaped opening, which will drive the U-shaped transmission plate to move up and down reciprocally, and then drive the U-shaped scraper to move up and down reciprocally, scraping and cleaning the filter screen to keep the filter screen unobstructed. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a sludge low-temperature biological drying waste gas treatment device proposed in this utility model.

[0018] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0019] Figure 3 for Figure 1A three-dimensional view of the connection structure between the U-shaped scraper and the U-shaped transmission plate.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base plate; 2. Spray tower; 3. Exhaust fan; 4. Filter plate; 5. Connecting pipe; 6. U-shaped scraper; 7. Limiting shell; 8. U-shaped transmission plate; 9. Vertical plate; 10. Horizontal bar; 11. Turntable; 12. Round pin; 13. Second bevel gear; 14. Transmission rod; 15. First bevel gear; 16. Impeller. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a sludge low-temperature biological drying waste gas treatment device.

[0024] Example 1

[0025] Reference Figure 1-3 A sludge low-temperature biological drying waste gas treatment device includes a base plate 1 and a spray tower 2. The spray tower 2 is fixedly installed on one side of the upper surface of the base plate 1, and an exhaust fan 3 is fixedly installed on the other side of the upper surface of the base plate 1. The air outlet of the exhaust fan 3 is connected to the smoke inlet of the spray tower 2 through a connecting pipe 5. A filter screen 4 is installed at the air inlet of the exhaust fan 3. A U-shaped scraper 6 is abutted against the outer side of the filter screen 4. A U-shaped transmission plate 8 is fixedly connected to the upper side of the U-shaped scraper 6. A first transmission mechanism that drives the U-shaped scraper 6 to move is provided on the upper side of the exhaust fan 3.

[0026] Example 2

[0027] Reference Figure 1-3 The first transmission mechanism includes a turntable 11 and a pin 12. A vertical plate 9 is fixedly installed on the upper surface of the exhaust fan 3 and on the side near the spray tower 2. A horizontal bar 10 is rotatably sleeved in the middle of the vertical plate 9. The turntable 11 is fixedly sleeved on the side of the horizontal bar 10 near the U-shaped transmission plate 8. The pin 12 is eccentrically set on the side of the turntable 11 near the U-shaped transmission plate 8. A strip-shaped opening is opened in the middle of the upper end of the U-shaped transmission plate 8. One end of the pin 12 passes through the strip-shaped opening. Limiting shells 7 are fixedly installed on the front and rear outer walls of the exhaust fan 3 at positions corresponding to the U-shaped transmission plate 8. Both ends of the U-shaped transmission plate 8 pass through the corresponding limiting shells 7, so that the U-shaped transmission plate 8 can slide stably. A second transmission mechanism that drives the horizontal bar 10 to rotate is installed inside the connecting pipe 5.

[0028] Example 3

[0029] Reference Figure 1-3The second transmission mechanism includes an impeller 16 and a transmission rod 14. The transmission rod 14 is rotatably sleeved on the upper side of the inside of the connecting pipe 5. The impeller 16 is located inside the connecting pipe 5 and is fixedly sleeved with the transmission rod 14. The upper end of the transmission rod 14 extends to the outside of the connecting pipe 5. A first bevel gear 15 is fixedly sleeved on the upper end of the transmission rod 14. A second bevel gear 13 is fixedly sleeved on the end of the crossbar 10 near the transmission rod 14. The first bevel gear 15 and the second bevel gear 13 are meshed and connected. Both ends of the transmission rod 14 are rotatably connected to the inner wall of the connecting pipe 5 through sealed bearings to improve the sealing between the transmission rod 14 and the inner wall of the connecting pipe 5. The gear ratio of the first bevel gear 15 and the second bevel gear 13 is 1:30, which enables the first bevel gear 15 to drive the second bevel gear 13 to rotate slowly.

[0030] In this utility model, when treating the waste gas generated by the low-temperature biological drying of sludge, the exhaust fan 3 is started. Under the action of the exhaust fan 3, the waste gas flows towards the air inlet of the exhaust fan 3. First, it passes through the filter screen 4, where large particulate impurities in the waste gas are intercepted by the filter screen 4. The filtered waste gas enters the exhaust fan 3 and is then transported to the spray tower 2 through the connecting pipe 5 for spray treatment, reducing the entry of large particulate impurities into the exhaust fan 3 and protecting the exhaust fan 3.

[0031] When the exhaust gas flows in the connecting pipe 5, it impacts the impeller 16 and drives the transmission rod 14 to rotate. The first bevel gear 15 at the upper end of the transmission rod 14 meshes with the second bevel gear 13 on the crossbar 10. Since the ratio of the number of teeth of the first bevel gear 15 to the second bevel gear 13 is 1:30, when the first bevel gear 15 rotates rapidly, the second bevel gear 13 drives the crossbar 10 to rotate slowly.

[0032] When the crossbar 10 rotates, the turntable 11 at its end rotates synchronously. The round pin 12 on the turntable 11 slides in the strip opening of the U-shaped transmission plate 8, pushing the U-shaped transmission plate 8 to move up and down along the limiting shell 7. The U-shaped transmission plate 8 drives the U-shaped scraper 6 to move up and down synchronously. The U-shaped scraper 6 abuts against the surface of the filter screen 4. During the movement, it scrapes off the impurities on the surface of the filter screen 4 to prevent impurities from accumulating and clogging the filter screen 4.

[0033] The sealed bearing ensures the sealing of the connecting pipe 5 when the transmission rod 14 rotates, preventing exhaust gas leakage. The limiting shell 7 guides and limits the movement of the U-shaped transmission plate 8, ensuring that the U-shaped scraper 6 stably contacts and cleans the filter screen 4. The whole process does not require manual intervention. The filter screen is automatically cleaned by utilizing the kinetic energy of the exhaust gas flow, ensuring the continuity and efficiency of exhaust gas treatment.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions 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 sludge low-temperature biological drying waste gas treatment device, comprising a base plate (1) and a spray tower (2), characterized in that, The spray tower (2) is fixedly installed on one side of the upper surface of the base plate (1), and an exhaust fan (3) is fixedly installed on the other side of the upper surface of the base plate (1). The air outlet of the exhaust fan (3) is connected to the smoke inlet of the spray tower (2) through a connecting pipe (5). A filter screen (4) is installed at the air inlet of the exhaust fan (3). A U-shaped scraper (6) is abutted against the outer side of the filter screen (4). A U-shaped transmission plate (8) is fixedly connected to the upper side of the U-shaped scraper (6). A first transmission mechanism that drives the U-shaped scraper (6) to move is provided on the upper side of the exhaust fan (3).

2. The sludge low-temperature biological drying waste gas treatment device according to claim 1, characterized in that, The first transmission mechanism includes a turntable (11) and a pin (12). A vertical plate (9) is fixedly installed on the upper surface of the exhaust fan (3) and on the side near the spray tower (2). A horizontal bar (10) is rotatably sleeved on the middle of the vertical plate (9). The turntable (11) is fixedly sleeved on the side of the horizontal bar (10) near the U-shaped transmission plate (8). The pin (12) is eccentrically set on the side of the turntable (11) near the U-shaped transmission plate (8). A strip-shaped opening is opened in the middle of the upper end of the U-shaped transmission plate (8). One end of the pin (12) passes through the strip-shaped opening. A second transmission mechanism that drives the horizontal bar (10) to rotate is provided inside the connecting pipe (5).

3. The sludge low-temperature biological drying waste gas treatment device according to claim 2, characterized in that, The second transmission mechanism includes an impeller (16) and a transmission rod (14). The transmission rod (14) is rotatably sleeved on the upper side of the inside of the connecting pipe (5). The impeller (16) is disposed inside the connecting pipe (5). The impeller (16) is fixedly sleeved with the transmission rod (14). The upper end of the transmission rod (14) extends to the outside of the connecting pipe (5). A first bevel gear (15) is fixedly sleeved on the upper end of the transmission rod (14). A second bevel gear (13) is fixedly sleeved on the end of the crossbar (10) near the transmission rod (14). The first bevel gear (15) and the second bevel gear (13) are meshed together.

4. The sludge low-temperature biological drying waste gas treatment device according to claim 1, characterized in that, Limiting shells (7) are fixedly installed on the front and rear outer walls of the exhaust fan (3) at positions corresponding to the U-shaped transmission plate (8), and both ends of the U-shaped transmission plate (8) pass through the corresponding limiting shells (7).

5. The sludge low-temperature biological drying waste gas treatment device according to claim 3, characterized in that, Both ends of the transmission rod (14) are rotatably connected to the inner wall of the connecting pipe (5) through sealed bearings.

6. The sludge low-temperature biological drying waste gas treatment device according to claim 3, characterized in that, The ratio of the number of teeth of the first bevel gear (15) and the second bevel gear (13) is 1:30.

Images