Municipal engineering sewage pretreatment equipment

Abstract

Municipal engineering sewage pretreatment equipment comprises a filter tank, an inclined filter screen is arranged on the filter tank, the filter screen is communicated with a water collecting tank, a garbage tank is arranged behind the filter screen, and the garbage tank is connected with the water collecting tank through a permeable plate; the scraping mechanism is connected to the filter screen in a sliding manner; the aeration tank is communicated with the water collecting tank through a lifting pump, and an aeration pipe is arranged in the aeration tank; the sewage disposal mechanism is connected to the aeration tank in a sliding manner, the sewage disposal mechanism comprises a sewage collection plate and a dredge pump, and the sewage collection plate and the dredge pump are integrally connected; the sewage collecting tank is arranged on the side wall of the aeration tank. The water permeable plate is located on one side of the garbage pool, garbage fed into the garbage pool by the scraping mechanism further contains part of water, the part of water flows into the water collecting tank from the water permeable plate, and solid-liquid separation in the garbage can is achieved; when the connecting block moves, the dirt collecting plate and the dredge pump move at the same time, only one motor is needed for driving, the effect of cleaning the upper face and the lower face at the same time can be achieved during cleaning, cleaning is completed at a time, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically, to a municipal engineering sewage pretreatment device. Background Art

[0002] Municipal sewage pretreatment equipment first filters out large impurities, and then enters the aeration grit tank to clean the sand.

[0003] Existing sewage pretreatment equipment will cause sewage to flow out when cleaning large pieces of garbage. The discharged sewage cannot be treated well. At the same time, the sludge suction pump and sewage collecting plate in the aerated grit chamber are moved separately, which requires more equipment and is more complicated to drive, resulting in low cleaning efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a municipal engineering sewage pretreatment device, which can separate the solid and liquid in the filtered garbage pool and realize the simultaneous movement of the sewage collecting plate and the mud suction plate.

[0005] A municipal engineering sewage pretreatment device comprises: a filter tank, wherein an inclined filter screen is provided on the filter tank, the filter screen is connected to a water collection tank, a garbage tank is provided behind the filter screen, and the garbage tank and the water collection tank are connected via a permeable plate; a scraping mechanism, wherein the scraping mechanism is slidably connected to the filter screen; an aeration tank, wherein the aeration tank and the water collection tank are connected via a lifting pump, and an aeration pipe is provided in the aeration tank; a sewage cleaning mechanism, wherein the sewage cleaning mechanism is slidably connected to the aeration tank, the sewage cleaning mechanism comprises a sewage collecting plate and a sludge suction pump, and the sewage collecting plate and the sludge suction pump are integrally connected; and a sewage collecting tank, wherein the sewage collecting tank is provided on the side wall of the aeration tank.

[0006] Furthermore, the filter screen and the water-permeable plate are arranged on both sides of the garbage pool, and the filter screen and the top of the water-permeable plate are connected together.

[0007] Furthermore, the scraping mechanism includes a scraper, a rack and a first motor, the scraper is slidably connected to the filter screen, the rack is fixed to the scraper, the first motor is arranged at the top of the filter tank, and the output end of the first motor is engaged with the rack.

[0008] Furthermore, a slide rail is provided on one side of the filter tank, and a protective cover is provided on the other side of the filter tank. The protective cover wraps the rack, and the scraper is slidably connected to the slide rail and the protective cover.

[0009] Furthermore, the bottom area of ​​the aeration tank gradually decreases from top to bottom.

[0010] Furthermore, the cleaning mechanism also includes a second motor, a threaded rod, a connecting block and a connecting rod. The output end of the second motor is fixedly connected to the threaded rod, the connecting block is screwed to the threaded rod, the connecting block is also fixedly connected to the sewage collecting plate, the bottom of the connecting block is fixedly connected to the connecting rod, and the bottom of the connecting rod is fixedly connected to the mud suction pump.

[0011] Furthermore, a limiting groove is provided on the upper inner wall of the aeration tank, and the sewage collecting plate is slidably connected to the limiting groove.

[0012] Furthermore, a slide is provided on the lower side wall of the aeration tank, and a pulley is provided on the side wall of the sludge suction pump, and the pulley is slidably connected to the slide.

[0013] Furthermore, a sewage outlet is provided on the side wall of the aeration tank, the sewage outlet is connected to the sewage collecting tank, and an opening and closing door is provided on the outside of the sewage outlet.

[0014] Furthermore, the mud suction pipe of the mud suction pump passes through the aeration tank and is connected with the sewage collection tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] ① The permeable plate is located on one side of the garbage pool. The garbage sent into the garbage pool by the scraping mechanism still contains some water. This part of the water flows from the permeable plate into the water collecting tank, realizing solid-liquid separation in the garbage tank.

[0017] ② When the connecting block moves, the sewage collecting plate and the sludge suction pump move at the same time, and only one motor is needed to drive them, which saves resources. When cleaning, the upper and lower sides can be cleaned at the same time, and the cleaning can be completed in one go, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of municipal engineering sewage pretreatment equipment.

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 This is a schematic diagram of an aeration tank in a municipal engineering sewage pretreatment equipment.

[0022] In the figure: 1. Filter tank; 11. Filter screen; 12. Water collection tank; 13. Garbage tank; 131. Permeable plate; 14. Slide rail; 15. Protective cover; 2. Scraping mechanism; 21. Scraper; 22. Rack; 23. First motor; 3. Aeration tank; 31. Aeration pipe; 32. Limiting groove; 33. Slide; 34. Sewage outlet; 35. Opening and closing door; 4. Sewage cleaning mechanism; 41. Sewage collecting plate; 42. Mud suction pump; 43. Second motor; 44. Threaded rod; 45. Connecting block; 46. Connecting rod; 5. Sewage collection tank. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 、 Figure 3 As shown, a municipal engineering sewage pretreatment equipment includes: a filter tank 1, the filter tank 1 is provided with an inclined filter screen 11, the filter screen 11 is connected to the water collection tank 12, and a garbage tank 13 is provided behind the filter screen 11, and the garbage tank 13 is connected to the water collection tank 12 through a permeable plate 131; a scraping mechanism 2, the scraping mechanism 2 is slidably connected to the filter screen 11; an aeration tank 3, the aeration tank 3 is connected to the water collection tank 12 through a lifting pump, and an aeration pipe 31 is provided in the aeration tank 3; a cleaning mechanism 4, the cleaning mechanism 4 is slidably connected to the aeration tank 3, the cleaning mechanism 4 includes a garbage collecting plate 41 and a sludge suction pump 42, and the garbage collecting plate 41 and the sludge suction pump 42 are integrally connected; a garbage collecting tank 5, the garbage collecting tank 5 is arranged on the side wall of the aeration tank 3.

[0025] Sewage from municipal projects is first discharged into the filter tank 1. The filter screen 11 and the permeable plate 131 are located on both sides of the garbage pool 13, and the tops of the filter screen 11 and the permeable plate 131 are connected together. Municipal sewage first passes through the filter screen 11, which intercepts large pieces of municipal waste, such as woven bags and large stones, to prevent the large pieces of waste from clogging the pipes for subsequent work. The large pieces of waste are then sent to the garbage pool 13 by the scraping mechanism 2 for further processing. The sewage filtered by the filter screen 11 flows into the water collection tank 12. The permeable plate 131 is located on one side of the garbage pool 13. The garbage sent to the garbage pool 13 by the scraping mechanism 2 also contains some water. This water flows from the permeable plate 131 back into the water collection tank 12, achieving solid-liquid separation in the garbage pool 13.

[0026] like Figure 2As shown, the scraping mechanism 2 includes a scraper 21, a rack 22, and a first motor 23. The scraper 21 is slidably connected to the filter screen 11, and the scraper 21 is in contact with the side wall of the filter screen 11. The scraper 21 has a bucket on top, which shovels garbage from the filter screen 11 into the bucket during the sliding process. The rack 22 is fixed to the scraper 21 and slides along the side wall of the filter tank 1. The first motor 23 is located at the top of the filter tank 1. The output end of the first motor 23 has a gear shaft, which meshes with the rack 22. When the first motor 23 is started, it drives the rack 22 up and down, further driving the scraper 21 to slide and clean garbage. When the scraper 21 slides to the top, the garbage in the scraper 21 is pushed into the garbage tank 13.

[0027] A slide rail 14 is provided on one side of the filter tank 1, and a protective cover 15 is provided on the other side of the filter tank 1. The protective cover 15 wraps the rack 22 to prevent large pieces of garbage from sticking to the rack 22 and causing inconvenience in movement. The scraper 21 is slidably connected to the slide rail 14 and the protective cover 15. The slide rail 14 and the protective cover 15 limit the moving direction of the scraper 21.

[0028] like Figure 3 As shown, the aeration tank 3 has a rectangular top, and its bottom area gradually decreases from top to bottom. An aeration pipe 31 is located in the middle of the tank 3 and is connected to a blower. Through aeration, the pipe 31 removes organic pollutants attached to the sand particles, causing them and low-density impurities to float on the top surface of the tank 3. The denser sand particles sink to the bottom of the tank 3 due to the aeration. Due to the reduced bottom area of ​​the tank 3, the sinking sand particles gather together. After the floating matter and sediment are separated, they are separated from the wastewater by a cleaning mechanism 4, completing the pretreatment.

[0029] The cleaning mechanism 4 also includes a second motor 43, a threaded rod 44, a connecting block 45, and a connecting rod 46. The output end of the second motor 43 is fixedly connected to the threaded rod 44. The second motor 43 drives the threaded tube to rotate. The connecting block 45 is screwed to the threaded rod 44 and moves on the threaded rod 44. The connecting block 45 is also fixedly connected to the sewage collecting plate 41. The bottom of the connecting block 45 is fixedly connected to the connecting rod 46. The bottom of the connecting rod 46 is fixedly connected to the sludge pump 42. The sewage collecting plate 41 scrapes the floating objects on the upper layer toward the edge of the aeration tank 3, and eventually flows into the sewage collecting tank 5. The sludge pump 42 draws the sand particles at the bottom of the aeration tank 3 and eventually enters the sewage collecting tank 5. When the connecting block 45 moves, the sewage collecting plate 41 and the sludge pump 42 move simultaneously. Only one motor is required to drive them, which saves resources. During cleaning, the upper and lower surfaces can be cleaned simultaneously, and the cleaning can be completed in one go, thereby improving cleaning efficiency.

[0030] A limit groove 32 is provided on the upper inner wall of the aeration tank 3 , and the sewage collecting plate 41 is slidably connected to the limit groove 32 . The limit groove 32 limits the sewage collecting plate 41 to move only along the limit groove 32 direction, while preventing the connecting block 45 from rotating with the threaded rod 44 .

[0031] A slide 33 is provided on the lower side wall of the aeration tank 3 , and a pulley is provided on the side wall of the sludge suction pump 42 . The pulley is slidably connected to the slide 33 , and the slide 33 provides a guide for the movement of the sludge suction pump 42 .

[0032] A sewage outlet 34 is provided on the side wall of the aeration tank 3, and the sewage outlet 34 is connected to the sewage collecting tank 5. An opening and closing door 35 is provided on the outside of the sewage outlet 34, and a small motor is provided on one side of the opening and closing door 35. When the aeration tank 3 is storing water and aerating, the opening and closing door 35 is closed to prevent water from flowing out. After the aeration and sand settling is completed, the second motor 43 is started to drive the sewage collecting plate 41 to move and let the upper floating objects flow into the sewage collecting tank 5 through the sewage outlet 34.

[0033] The mud suction pipe of the mud suction pump 42 passes through the aeration tank 3 and is connected with the sewage collection tank 5 . The mud suction pump 42 sucks sand particles at the bottom of the aeration tank 3 into the sewage collection tank 5 .

[0034] A water outlet pipe is also provided on one side of the aeration tank 3, and the water outlet pipe is connected to a deeper treatment equipment.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A municipal engineering sewage pretreatment equipment, characterized in that: include: A filter pool (1), wherein an inclined filter screen (11) is provided on the filter pool (1), the filter screen (11) is connected to a water collection pool (12), a garbage pool (13) is provided behind the filter screen (11), and the garbage pool (13) is connected to the water collection pool (12) through a permeable plate (131); A scraping mechanism (2), wherein the scraping mechanism (2) is slidably connected to the filter screen (11); an aeration tank (3), wherein the aeration tank (3) is connected to the water collection tank (12) via a lifting pump, and an aeration pipe (31) is provided in the aeration tank (3); A dirt cleaning mechanism (4), the dirt cleaning mechanism (4) is slidably connected to the aeration tank (3), the dirt cleaning mechanism (4) comprises a dirt collecting plate (41) and a mud suction pump (42), the dirt collecting plate (41) and the mud suction pump (42) are integrally connected; A sewage collecting tank (5), wherein the sewage collecting tank (5) is arranged on the side wall of the aeration tank (3).

2. A municipal engineering sewage pretreatment equipment according to claim 1, characterized in that: The filter screen (11) and the water-permeable plate (131) are arranged on both sides of the garbage pool (13), and the tops of the filter screen (11) and the water-permeable plate (131) are connected together.

3. A municipal engineering sewage pretreatment equipment according to claim 2, characterized in that: The scraping mechanism (2) comprises a scraper (21), a rack (22) and a first motor (23); the scraper (21) is slidably connected to the filter screen (11); the rack (22) is fixed to the scraper (21); the first motor (23) is arranged on the top of the filter tank (1); and the output end of the first motor (23) is engaged with the rack (22).

4. A municipal engineering sewage pretreatment equipment according to claim 3, characterized in that: A slide rail (14) is provided on one side of the filter tank (1), and a protective cover (15) is provided on the other side of the filter tank (1). The protective cover (15) wraps the rack (22), and the scraper (21) is slidably connected to the slide rail (14) and the protective cover (15).

5. The municipal engineering sewage pretreatment equipment according to claim 4, characterized in that: The bottom area of ​​the aeration tank (3) gradually decreases from top to bottom.

6. The municipal engineering sewage pretreatment equipment according to claim 5, characterized in that: The dirt cleaning mechanism (4) further comprises a second motor (43), a threaded rod (44), a connecting block (45) and a connecting rod (46); the output end of the second motor (43) is fixedly connected to the threaded rod (44); the connecting block (45) is screwed to the threaded rod (44); the connecting block (45) is also fixedly connected to the dirt collecting plate (41); the bottom of the connecting block (45) is fixedly connected to the connecting rod (46); and the bottom of the connecting rod (46) is fixedly connected to the mud suction pump (42).

7. The municipal engineering sewage pretreatment equipment according to claim 6, characterized in that: A limiting groove (32) is provided on the upper inner wall of the aeration tank (3), and the dirt collecting plate (41) is slidably connected to the limiting groove (32).

8. The municipal engineering sewage pretreatment equipment according to claim 7, characterized in that: A slideway (33) is provided on the lower side wall of the aeration tank (3), and a pulley is provided on the side wall of the mud suction pump (42), and the pulley is slidably connected to the slideway (33).

9. The municipal engineering sewage pretreatment equipment according to claim 8, characterized in that: A sewage outlet (34) is provided on the side wall of the aeration tank (3), the sewage outlet (34) is communicated with the sewage collecting tank (5), and an opening and closing door (35) is provided on the outside of the sewage outlet (34).

10. The municipal engineering sewage pretreatment equipment according to claim 9, characterized in that: The mud suction pipe of the mud suction pump (42) passes through the aeration tank (3) and is in communication with the sewage collection tank (5).

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