Grid rough filtration device for tank cleaning wastewater

Abstract

The utility model relates to a tank cleaning wastewater grating rough filtration device, which comprises a tank body and a screen drum rotatably arranged in the tank body, one end of the tank body is provided with a water inlet, one end of the screen drum far away from the water inlet penetrates through the other end of the tank body and extends to the outside, the bottom of the tank body is provided with a water outlet, and the top of the tank body is provided with a washing assembly. A washing assembly is arranged on the tank body, a conveying assembly is arranged on the tank body, a driving assembly connected with the washing assembly is further arranged on the tank body, and the driving assembly is respectively connected with the screen mesh cylinder and the conveying assembly through a transmission structure. By means of mutual cooperation of the washing assembly, the driving assembly, the conveying assembly and the transmission structure, impurities attached to the screen mesh cylinder can be washed away, the screen mesh cylinder is prevented from being blocked, and the impurities washed down from the screen mesh cylinder can be conveyed to the outside of the tank body in time.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a bar screen coarse filter device for tank cleaning wastewater. Background Technology

[0002] Tank cleaning wastewater refers to the wastewater generated during the cleaning of tanks used to store or transport various liquids and chemicals. This type of wastewater usually contains residual components of the substances being cleaned, as well as pollutants such as chemical agents used in the cleaning process.

[0003] Tank cleaning wastewater mainly originates from the tank cleaning processes in industries such as chemical, petroleum, food, and pharmaceutical. For example, tank trucks transporting hazardous chemicals such as gasoline, diesel, acids, and alkalis need to be cleaned when changing cargo to prevent residual chemicals from contaminating the next batch of goods.

[0004] However, existing bar screen coarse filtration devices have the following drawbacks when filtering tank cleaning wastewater:

[0005] 1. Filter clogging: After prolonged use, a large amount of impurities will accumulate on the filter screen, reducing the flow rate and filtration efficiency. This not only affects the progress of wastewater treatment but may also cause wastewater to accumulate in the system, increasing treatment costs.

[0006] Second, the slag removal work is tedious. The slag on the filter screen needs to be cleaned in time, otherwise it will affect the filtration effect. The slag removal work usually requires manual operation, which increases labor costs and the workload of operators. Summary of the Invention

[0007] The purpose of this invention is to provide a bar screen for coarse filtration of tank cleaning wastewater, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A coarse filtration device for tank cleaning wastewater includes a tank body and a screen cylinder rotatably disposed inside the tank body. One end of the tank body is provided with an inlet, and the end of the screen cylinder away from the inlet passes through the other end of the tank body and extends to the outside. The bottom of the tank body is provided with an outlet.

[0010] The top of the tank is equipped with a flushing component, which can remove impurities attached to the screen cylinder.

[0011] The tank is equipped with a conveying assembly, which can convey the impurities washed down from the screen cylinder to the outside of the tank.

[0012] The tank is also provided with a drive component connected to the flushing component, and the drive component is connected to the screen cylinder and the conveying component respectively through a transmission structure. When the drive component is running, the flushing component and the conveying component will follow the action, and the screen cylinder will rotate at the same time.

[0013] As a further embodiment of this utility model:

[0014] The flushing assembly includes a first rotating shaft, a second rotating shaft, and a slide block that is slidably disposed on the tank along the length of the tank body. Both the first rotating shaft and the second rotating shaft are rotatably disposed on the tank body.

[0015] The first rotating shaft and the second rotating shaft are respectively equipped with a first sprocket and a second sprocket, and the first sprocket and the second sprocket are connected by a chain.

[0016] As a further improvement of this utility model:

[0017] The slide block is provided with a slide groove, and a slide post is rotatably provided on one of the links of the chain. The slide post is located in the slide groove and slides with each other.

[0018] A high-pressure nozzle is provided on the slide block. The high-pressure nozzle penetrates the side wall of the tank and extends into its interior. An obstacle groove is provided on the tank along its length to allow the high-pressure nozzle to move.

[0019] As a further improvement of this utility model:

[0020] The conveying assembly includes a receiving frame, a housing, and a spiral conveying rod that rotates with the housing. The receiving frame is disposed inside the tank.

[0021] The receiving frame is located directly below the high-pressure nozzle, and the screen cylinder is located between the high-pressure nozzle and the receiving frame.

[0022] As a further improvement of this utility model:

[0023] One end of the outer shell is connected to the other end of the tank via a bracket, and the other end of the outer shell is fixedly connected to the bottom of the receiving frame via a conduit;

[0024] The end of the screen cylinder away from the water inlet is rotatably fitted onto the outside of the outer casing, and a discharge port is provided at the bottom of one end of the outer casing.

[0025] As a further improvement of this utility model:

[0026] The drive assembly includes a pump mounted on the tank and a transmission rod rotatably mounted on the tank, wherein the output shaft of the pump is connected to one end of the transmission rod.

[0027] The transmission rod is equipped with a first transmission wheel, and the first rotating shaft is equipped with a second transmission wheel. The first transmission wheel and the second transmission wheel are connected by a belt, and the water outlet of the pump and the high-pressure nozzle are connected by a hose.

[0028] As a further improvement of this utility model:

[0029] The transmission structure includes a first bevel gear, a second bevel gear, and a third bevel gear, with the first bevel gear connected to the other end of the transmission rod.

[0030] The second bevel gear is located at one end of the spiral conveyor rod, and the third bevel gear is located at the end of the screen cylinder away from the water inlet. Both the second and third bevel gears mesh with the first bevel gear.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] Wastewater enters the tank through the inlet. Under the filtration of the screen cylinder, impurities are retained inside the screen cylinder, and the wastewater is discharged through the outlet. The flushing component works in conjunction with the drive component to flush away impurities adhering to the inner wall of the screen cylinder. At the same time, the drive component also drives the conveying component to operate and the screen cylinder to rotate through the transmission structure. The conveying component can transport the impurities flushed off the screen cylinder to the outside of the tank. The rotating screen cylinder allows the impurities inside to pass through the flushing component in sequence, which is more conducive to the removal of impurities.

[0033] This application utilizes a tank and a screen cylinder to filter wastewater. By cooperating with the flushing component, drive component, conveying component, and transmission structure, impurities attached to the screen cylinder can be flushed away, preventing clogging that would reduce flow rate and filtration efficiency. Furthermore, the impurities flushed off the screen cylinder can be promptly transported to the outside of the tank, eliminating the need for manual handling and reducing workload. Attached Figure Description

[0034] Figure 1 A schematic diagram of the overall structure of an embodiment of a bar screen coarse filter device for tank cleaning wastewater.

[0035] Figure 2 for Figure 2 Enlarged view of point A in the middle.

[0036] Figure 3 In order to be in Figure 6Sectional views of the base material receiving frame, outer shell, No. 1 bevel gear, No. 2 bevel gear, and No. 3 bevel gear.

[0037] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0038] Figure 5 for Figure 3 Enlarged view of point C in the middle.

[0039] Figure 6 A cross-sectional view of the tank body and screen cylinder structure in one embodiment of a bar screen coarse filtration device for tank cleaning wastewater.

[0040] Figure 7 for Figure 6 Enlarged view of point D in the middle.

[0041] Figure 8 A schematic diagram from another perspective of the overall structure of an embodiment of a bar screen coarse filter device for tank cleaning wastewater.

[0042] Figure 9 for Figure 8 Enlarged view of point E in the middle.

[0043] In the diagram: 1. Tank body; 101. Inlet; 102. Outlet; 2. Screen cylinder; 3. Shaft No. 1; 4. Shaft No. 2; 5. Slide block; 6. Sprocket No. 1; 7. Sprocket No. 2; 8. Chain; 9. Slide groove; 10. Slide column; 11. High-pressure nozzle; 12. Receiving frame; 13. Outer shell; 14. Screw conveyor rod; 15. Support; 16. Guide pipe; 17. Discharge port; 18. Pump; 19. Transmission rod; 20. Transmission wheel No. 1; 21. Transmission wheel No. 2; 22. Belt; 23. Hose; 24. Bevel gear No. 1; 25. Bevel gear No. 2; 26. Bevel gear No. 3. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] Furthermore, the elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] Please see Figures 1-9 In this embodiment of the present invention, a coarse filtration device for tank cleaning wastewater includes a tank body 1 and a screen cylinder 2 rotatably disposed inside the tank body 1. One end of the tank body 1 is provided with an inlet 101, and one end of the screen cylinder 2 away from the inlet 101 passes through the other end of the tank body 1 and extends to the outside. The bottom of the tank body 1 is provided with an outlet 102.

[0047] The top of the tank 1 is provided with a flushing assembly, which can remove impurities attached to the screen cylinder 2.

[0048] The tank 1 is equipped with a conveying assembly, which can convey the impurities washed down from the screen cylinder 2 to the outside of the tank 1.

[0049] The tank body 1 is also provided with a drive component connected to the flushing component, and the drive component is connected to the screen cylinder 2 and the conveying component respectively through a transmission structure. When the drive component is running, the flushing component and the conveying component will follow the action, and the screen cylinder 2 will rotate at the same time.

[0050] In this scheme, sewage enters the tank 1 through the inlet 101. Under the filtration effect of the screen cylinder 2, impurities are retained inside the screen cylinder 2, and sewage is discharged through the outlet 102. The flushing component can cooperate with the drive component to flush away the impurities attached to the inner wall of the screen cylinder 2. At the same time, the drive component will also drive the conveying component to move and the screen cylinder 2 to rotate through the transmission structure. The conveying component can transport the impurities flushed off the screen cylinder 2 to the outside of the tank 1. The rotating screen cylinder 2 can make the impurities inside pass through the flushing component in sequence, which is more conducive to removing impurities.

[0051] As a further embodiment of this utility model, the flushing assembly includes a first rotating shaft 3, a second rotating shaft 4, and a slide block 5 that is slidably disposed on the tank 1 along the length direction of the tank 1. Both the first rotating shaft 3 and the second rotating shaft 4 are rotatably disposed on the tank 1.

[0052] A first sprocket 6 and a second sprocket 7 are respectively provided on the first rotating shaft 3 and the second rotating shaft 4, and the first sprocket 6 and the second sprocket 7 are connected by a chain 8;

[0053] The slide block 5 is provided with a slide groove 9, and a slide post 10 is rotatably provided on one of the links of the chain 8. The slide post 10 is located in the slide groove 9 and slides with each other.

[0054] The slide block 5 is provided with a high-pressure nozzle 11, which penetrates the side wall of the tank body 1 and extends into its interior. The tank body 1 is provided with a clearance groove along its length for the high-pressure nozzle 11 to move.

[0055] In this embodiment, since the first sprocket 6 fixed on the first shaft 3 and the second sprocket 7 fixed on the second shaft 4 are connected by a chain 8, when the first shaft 3 rotates, the first sprocket 6, the chain 8, the second sprocket 7 and the second shaft 4 will all rotate.

[0056] Since the slide block 5 is slidably mounted on the tank body 1, and the slide column 10, which is rotatably mounted on one of the links of the chain 8, is located in the slide groove 9 opened on the slide block 5 and slides and cooperates with each other, the slide block 5 will move horizontally back and forth when the chain 8 rotates; since the high pressure nozzle 11 is fixed on the slide block 5, the high pressure nozzle 11 will move synchronously with the slide block 5.

[0057] As a further embodiment of the present invention, the conveying assembly includes a receiving frame 12, a housing 13, and a spiral conveying rod 14 that rotatably engages with the housing 13, wherein the receiving frame 12 is disposed inside the tank 1;

[0058] The receiving frame 12 is located directly below the high-pressure nozzle 11, and the screen cylinder 2 is located between the high-pressure nozzle 11 and the receiving frame 12;

[0059] One end of the outer shell 13 is connected to the other end of the tank 1 via a bracket 15, and the other end of the outer shell 13 is fixedly connected to the bottom of the receiving frame 12 via a conduit 16;

[0060] The end of the screen cylinder 2 away from the water inlet 101 is rotatably sleeved on the outside of the outer shell 13, and a discharge port 17 is provided at the bottom of one end of the outer shell 13.

[0061] In this embodiment, since the receiving frame 12 is located directly below the high-pressure nozzle 11 and the screen cylinder 2 is located between the high-pressure nozzle 11 and the receiving frame 12, the impurities washed off the screen cylinder 2 will fall into the receiving frame 12.

[0062] Since the other end of the outer shell 13 is fixedly connected to the bottom of the receiving frame 12 through the conduit 16, impurities will enter the outer shell 13 through the conduit 16.

[0063] Since the screw conveyor 14 is rotatably coupled with the outer casing 13, and a discharge port 17 is provided at the bottom of one end of the outer casing 13, when the screw conveyor 14 rotates, the impurities inside the outer casing 13 will be transported to the discharge port 17 and discharged.

[0064] As a further embodiment of the present invention, the drive assembly includes a pump 18 disposed on the tank 1 and a transmission rod 19 rotatably disposed on the tank 1, wherein the output shaft of the pump 18 is connected to one end of the transmission rod 19.

[0065] A first transmission wheel 20 is provided on the transmission rod 19, and a second transmission wheel 21 is provided on the first rotating shaft 3. The first transmission wheel 20 and the second transmission wheel 21 are connected by a belt 22. The water outlet of the pump 18 and the high-pressure nozzle 11 are connected by a hose 23.

[0066] In this embodiment, since the output shaft of the pump 18 is connected to one end of the transmission rod 19, and the water outlet of the pump 18 and the high-pressure nozzle 11 are connected by a hose 23, when the water inlet of the pump 18 is connected to the water source and the pump 18 is started, the transmission rod 19 will rotate, and at the same time, the high-pressure nozzle 11 will spray water to flush and clean the screen cylinder 2, so that the impurities on the screen cylinder 2 fall into the receiving frame 12.

[0067] Since the first transmission wheel 20 fixed on the transmission rod 19 and the second transmission wheel 21 fixed on the first rotating shaft 3 are connected by a belt 22, the rotating transmission rod 19 will drive the first rotating shaft 3 to rotate.

[0068] As a further embodiment of this utility model, the transmission structure includes a first bevel gear 24, a second bevel gear 25, and a third bevel gear 26, wherein the first bevel gear 24 is connected to the other end of the transmission rod 19.

[0069] The second bevel gear 25 is located at one end of the spiral conveyor rod 14, and the third bevel gear 26 is located at the end of the screen cylinder 2 away from the water inlet 101. Both the second bevel gear 25 and the third bevel gear 26 mesh with the first bevel gear 24.

[0070] In this embodiment, since the No. 2 bevel gear 25 fixed at the other end of the transmission rod 19 meshes with the No. 3 bevel gear 26 fixed on the screen cylinder 2 and the No. 2 bevel gear 25 fixed on the spiral conveying rod 14, when the transmission rod 19 rotates, both the screen cylinder 2 and the spiral conveying rod 14 will rotate accordingly.

[0071] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0072] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coarse filtration device for tank cleaning wastewater, comprising a tank body (1) and a screen cylinder (2) rotatably disposed inside the tank body (1), characterized in that, One end of the tank (1) is provided with a water inlet (101), the end of the screen cylinder (2) away from the water inlet (101) passes through the other end of the tank (1) and extends to the outside, and the bottom of the tank (1) is provided with a water outlet (102). The top of the tank (1) is provided with a flushing assembly, which can remove impurities attached to the screen cylinder (2); The tank (1) is provided with a conveying assembly, which can convey the impurities washed down from the screen cylinder (2) to the outside of the tank (1); The tank (1) is also provided with a drive component connected to the flushing component, and the drive component is connected to the screen cylinder (2) and the conveying component respectively through a transmission structure. When the drive component is running, the flushing component and the conveying component will follow the action, and the screen cylinder (2) will rotate.

2. The bar screen coarse filtration device for tank cleaning wastewater according to claim 1, characterized in that, The flushing assembly includes a first rotating shaft (3), a second rotating shaft (4), and a slide block (5) that is slidably disposed on the tank (1) along the length direction of the tank (1). The first rotating shaft (3) and the second rotating shaft (4) are both rotatably disposed on the tank (1). A first sprocket (6) and a second sprocket (7) are respectively provided on the first shaft (3) and the second shaft (4), and the first sprocket (6) and the second sprocket (7) are connected by a chain (8).

3. The bar screen coarse filtration device for tank cleaning wastewater according to claim 2, characterized in that, The slide block (5) is provided with a slide groove (9), and a slide post (10) is rotatably provided on one of the links of the chain (8). The slide post (10) is located in the slide groove (9) and slides with each other. A high-pressure nozzle (11) is provided on the slide (5). The high-pressure nozzle (11) penetrates the side wall of the tank (1) and extends into its interior. An obstacle groove is provided on the tank (1) along its length direction for the high-pressure nozzle (11) to move.

4. The bar screen coarse filtration device for tank cleaning wastewater according to claim 3, characterized in that, The conveying assembly includes a receiving frame (12), a housing (13), and a spiral conveying rod (14) that rotates with the housing (13). The receiving frame (12) is disposed inside the tank (1). The receiving frame (12) is located directly below the high-pressure nozzle (11), and the screen cylinder (2) is located between the high-pressure nozzle (11) and the receiving frame (12).

5. A bar screen coarse filtration device for tank cleaning wastewater according to claim 4, characterized in that, One end of the outer shell (13) is connected to the other end of the tank (1) via a bracket (15), and the other end of the outer shell (13) is fixedly connected to the bottom of the receiving frame (12) via a conduit (16); The end of the screen cylinder (2) away from the water inlet (101) is rotatably sleeved on the outside of the outer shell (13), and a discharge port (17) is opened at the bottom of one end of the outer shell (13).

6. The bar screen coarse filtration device for tank cleaning wastewater according to claim 4, characterized in that, The drive assembly includes a pump (18) mounted on the tank (1) and a transmission rod (19) rotatably mounted on the tank (1), wherein the output shaft of the pump (18) is connected to one end of the transmission rod (19); The transmission rod (19) is provided with a first transmission wheel (20), and the first rotating shaft (3) is provided with a second transmission wheel (21). The first transmission wheel (20) and the second transmission wheel (21) are connected by a belt (22). The water outlet of the pump (18) and the high-pressure nozzle (11) are connected by a hose (23).

7. A bar screen coarse filtration device for tank cleaning wastewater according to claim 6, characterized in that, The transmission structure includes a first bevel gear (24), a second bevel gear (25), and a third bevel gear (26), with the first bevel gear (24) connected to the other end of the transmission rod (19). The second bevel gear (25) is located at one end of the spiral conveyor rod (14), and the third bevel gear (26) is located at the end of the screen cylinder (2) away from the water inlet (101). The second bevel gear (25) and the third bevel gear (26) are both meshed with the first bevel gear (24).

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