Sewage treatment solid-liquid separation device

Abstract

The utility model relates to the technical field of environmental protection engineering, in particular to a sewage treatment solid-liquid separation device which comprises a first filter screen, a feeding pipeline, a solid-liquid separation box, a second filter screen, a vibrator, a third filter screen and an extrusion device. Sewage of filter screen plastic waste is forwards conveyed into a solid-liquid separation box through a conveying shaft and a spiral blade, waste solids of the sewage are separated from the sewage through a second filter screen and a vibrator, the vibrator vibrates the waste solids of the sewage to fall to a third filter screen, and then the solid wastes are extruded through an extrusion device; and extruded water falls into the lower part of the solid-liquid separation box from the third filter screen, so that solid-liquid separation of the whole sewage is completed, and the solid-liquid separation efficiency of sewage treatment is improved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection engineering, in particular to a sewage treatment solid-liquid separation device. Background Art

[0002] The Chinese patent with authorization announcement number CN218873218U discloses a solid-liquid separation device for sewage treatment, which specifically discloses that the crushing part includes a plurality of driving rods, a plurality of crushing cylinders, a main gear and a sub-gear; the plurality of driving rods are rotatably arranged in the treatment box, and the crushing cylinder is provided on any of the driving rods. The ends of the plurality of driving rods pass through the treatment box and are respectively connected to the main gear and the sub-gear, the main gear is meshed with the sub-gear, and the output end of the motor is connected to any of the driving rods.

[0003] This patent can crush the solid waste in sewage very well, but because there are not only solid wastes but also some plastic wastes in sewage, during the process of sewage treatment using this patent, the plastic wastes are easily stuck between the crushing cylinders, thereby affecting the operation of the crushing cylinders and reducing the efficiency of solid-liquid separation of sewage. Therefore, there is an urgent need for a sewage treatment solid-liquid separation device that can pre-treat sewage and thus improve the solid-liquid separation efficiency of sewage. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a solid-liquid separation device for sewage treatment, which can pre-treat sewage and thus improve the solid-liquid separation efficiency of sewage.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a sewage treatment solid-liquid separation device, comprising:

[0006] frame;

[0007] The conveying device is connected to the frame, and the conveying device includes a sewage conveying box, a conveying shaft, a spiral blade and a driving motor. The driving motor is connected to the X-direction side of the sewage conveying box, the conveying shaft is located inside the sewage conveying box, the spiral blade is connected to the outer wall of the conveying shaft, the driving motor is drivingly connected to the conveying shaft, and the axial direction of the conveying shaft is the X-direction;

[0008] Pretreatment device; the pretreatment device includes a feed pipe and a first filter screen, the feed pipe is connected to the upper part of the beginning of the sewage delivery box, and the first filter screen is detachably connected to the feed pipe;

[0009] A solid-liquid separation box, the upper part of which is connected to the lower part of the end of the sewage delivery box through a water outlet pipe, and a second filter screen, a partition, a third filter screen and an extrusion device are arranged in the solid-liquid separation box;

[0010] The second filter screen is connected to the solid-liquid separation box in an inclined manner, the high end of the second filter screen is located directly below the water outlet pipe, the upper part of the partition is connected to the low end of the second filter screen, and the third filter screen is detachably connected to the solid-liquid separation box;

[0011] A vibrator connected to the lower side of the second filter screen;

[0012] When the third filter screen is connected to the solid-liquid separation box, the first filter screen, the partition plate and the third filter screen separate the solid-liquid separation box into a first chamber and a second chamber, the extrusion device is located in the first chamber, and the extrusion includes a first cylinder and a pressing plate, the first cylinder is connected to the upper part of the solid-liquid separation box, the axial direction of the first cylinder is in the vertical direction, and the pressing plate is located above the third filter screen;

[0013] A drainage pipe is connected to the bottom of the X-direction reverse side wall of the solid-liquid separation tank.

[0014] Further, the sewage treatment solid-liquid separation device also includes a first moving mechanism, the first moving mechanism includes a screw guide rail assembly, a slider, and a second cylinder, the screw guide rail assembly is connected to the frame, the axial direction of the screw guide rail assembly is the X direction, the slider is slidably connected to the screw guide rail assembly, the second cylinder is connected to the slider, the axial direction of the second cylinder is the vertical direction, and the first filter is connected to the piston rod of the second cylinder;

[0015] The first moving mechanism drives the first filter to switch between a first state and a second state;

[0016] In the first state, the first filter is located in the feed pipe;

[0017] In the second state, the first filter screen is located on one side of the feed pipe in the X direction.

[0018] Furthermore, the solid-liquid separation device for sewage treatment further comprises a cleaning device, which is located on the X-direction side of the feed pipe, and comprises a water pipe and a cleaning nozzle, a water tank is provided on the frame, one end of the water pipe is connected to the water tank, and the cleaning nozzle is connected to the other end of the water pipe;

[0019] In the second state, the first filter screen is located below the cleaning nozzle, and the nozzle direction of the cleaning nozzle is toward the first filter screen.

[0020] Furthermore, a waste collection bucket is provided on the frame, and the waste collection bucket is located below the cleaning nozzle.

[0021] Furthermore, an opening is provided on the X-direction side wall of the solid separation box, and a handle is provided on one side of the third filter screen in the X-direction, and the shape of the handle is interference fit with the opening.

[0022] Furthermore, a branch pipe is provided on the drainage pipe, a water pump is provided on the branch pipe, and the branch pipe is connected to the water tank.

[0023] The beneficial effect of the utility model is that, compared with the prior art, plastic waste is processed through pretreatment by the first filter screen, and then the sewage is transported forward into the solid-liquid separation box through the conveying shaft and the spiral blade, and the solid-liquid waste is processed by the second filter screen, the third filter screen and the extrusion device, thereby improving the solid-liquid separation efficiency of sewage treatment through the above-mentioned pretreatment device, conveying device and solid-liquid separation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a solid-liquid separation device for sewage treatment according to a specific embodiment of the utility model;

[0025] Figure 2 It is a side view of a solid-liquid separation device for sewage treatment according to a specific embodiment of the utility model;

[0026] Figure 3 for Figure 2 A-direction cross-sectional view.

[0027] Description of symbols

[0028] 1. Frame; 11. Water tank; 12. Waste collection barrel;

[0029] 2. Conveying device; 21. Sewage conveying box; 22. Conveying shaft; 23. Spiral blade; 24. Driving motor;

[0030] 3. Pretreatment device; 31. First filter screen; 32. Feed pipeline;

[0031] 4. solid-liquid separation box; 41. second filter screen; 42. partition; 43. third filter screen; 431. handle; 44. extrusion device; 441. first cylinder; 442. pressing plate; 45. opening;

[0032] 5. Water outlet pipe;

[0033] 6. Vibrator;

[0034] 7. Drainage pipe; 71. Branch pipe; 711. Water pump;

[0035] 8. First moving mechanism; 81. Screw guide rail assembly; 82. Sliding block; 83. Second cylinder;

[0036] 9. Cleaning device; 91. Cleaning pipe; 92. Cleaning nozzle. DETAILED DESCRIPTION

[0037] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0038] Please refer to Figures 1 to 3, a sewage treatment solid-liquid separation device, comprising:

[0039] Rack 1;

[0040] The conveying device 2 is connected to the frame 1. The conveying device 2 includes a sewage conveying box 21, a conveying shaft 22, a spiral blade 23 and a driving motor 24. The driving motor 24 is connected to the X-direction side of the sewage conveying box 21. The conveying shaft 22 is located inside the sewage conveying box 21. The spiral blade 23 is connected to the outer wall of the conveying shaft 22. The driving motor 24 is in driving connection with the conveying shaft 22. The axial direction of the conveying shaft 22 is the X-direction.

[0041] Pretreatment device 3; the pretreatment device 3 includes a feed pipe 32 and a first filter 31, the feed pipe 32 is connected to the upper part of the beginning of the sewage delivery box 21, and the first filter 31 is detachably connected to the feed pipe 32;

[0042] A solid-liquid separation box 4, the upper part of which is connected to the lower part of the end of the sewage delivery box 21 through a water outlet pipe 5, and a second filter screen 41, a partition plate 42, a third filter screen 43 and an extrusion device 44 are provided in the solid-liquid separation box 4;

[0043] The second filter screen 41 is connected to the solid-liquid separation box 4 in an inclined manner, the high end of the second filter screen 41 is located directly below the water outlet pipe 5, the upper part of the partition plate 42 is connected to the lower end of the second filter screen 41, and the third filter screen 43 is detachably connected to the solid-liquid separation box 4;

[0044] A vibrator 6, which is connected to the lower side of the second filter screen 41;

[0045] When the third filter screen 43 is connected to the solid-liquid separation box 4, the first filter screen 31, the partition plate 42 and the third filter screen 43 separate the solid-liquid separation box 4 into a first chamber and a second chamber. The extrusion device 44 is located in the first chamber. The extrusion includes a first cylinder 441 and a pressing plate 442. The first cylinder 441 is connected to the upper part of the solid-liquid separation box. The axial direction of the first cylinder 441 is in the vertical direction. The pressing plate 442 is located above the third filter screen 43.

[0046] A drainage pipe 7, the drainage pipe 7 is connected to the bottom of the X-direction reverse side wall of the solid-liquid separation tank;

[0047] In the above embodiment, sewage is poured into the feed pipe 32, and the larger and plastic waste in the sewage is filtered through the first filter screen 31. The filtered sewage enters the sewage conveying box 21, and the filtered sewage is conveyed forward by the conveying shaft 22 and the spiral blade 23, so that the sewage enters the solid-liquid separation box 4 through the inlet and outlet pipes, and the sewage falls to the top of the second filter screen 41, so that the solid waste in the sewage is separated from the sewage, and the solid waste area passes through the vibrator 6 below the second filter screen 41, and falls from the bottom of the second filter screen 41 to the third filter screen 43, and the sewage falls from the second filter screen 41 into the second cavity, and then the first cylinder 441 The driving pressure plate 442 squeezes the third filtered solid waste, so that the moisture in the solid waste falls from the third filter screen 43 into the second cavity through squeezing, and finally the water in the second cavity is drained away through the drainage pipe 7. Compared with the prior art, the plastic waste is processed through the pretreatment of the first filter screen 31, and then the sewage is transported forward into the solid-liquid separation box 4 through the conveying shaft 22 and the spiral blade 23, and the solid-liquid waste is processed by the second filter screen 41, the third filter screen 43 and the squeezing device 44, thereby improving the solid-liquid separation efficiency of sewage treatment through the above-mentioned pretreatment device 3, the conveying device 2 and the solid-liquid separation box 4.

[0048] As an optional embodiment, the sewage treatment solid-liquid separation device also includes a first moving mechanism 8, the first moving mechanism 8 includes a screw guide assembly 81, a slider 82 and a second cylinder 83, the screw guide assembly 81 is connected to the frame 1, the axial direction of the screw guide assembly 81 is the X direction, the slider 82 is slidably connected to the screw guide assembly 81, the second cylinder 83 is connected to the slider 82, the axial direction of the second cylinder 83 is the vertical direction, and the first filter 31 is connected to the piston rod of the second cylinder 83;

[0049] The first moving mechanism 8 drives the first filter screen 31 to switch between the first state and the second state;

[0050] In the first state, the first filter screen 31 is located in the feed pipe 32;

[0051] In the second state, the first filter screen 31 is located on one side of the feed pipe 32 in the X direction.

[0052] In the above embodiment, the first filter screen 31 is moved upward by driving the second cylinder 83, and then the first filter screen 31 is driven by the screw guide rail assembly 81 to move along X to the X side of the feed pipe 32, so that one filter screen is separated from the feed pipe 32 to achieve a detachable connection.

[0053] As an optional embodiment, the solid-liquid separation device for sewage treatment further includes a cleaning device 9, which is located on the X-side of the feed pipe 32, and includes a cleaning pipe 91 and a cleaning nozzle 92. A water tank 11 is provided on the frame 1, one end of the cleaning pipe 91 is connected to the water tank 11, and the cleaning nozzle 92 is connected to the other end of the cleaning pipe 91;

[0054] In the second state, the first filter screen 31 is located below the cleaning nozzle 92 , and the nozzle direction of the cleaning nozzle 92 is toward the first filter screen 31 .

[0055] In the above embodiment, when there are a lot of plastic waste and larger solid waste on the first filter 31, the first moving mechanism 8 drives the first filter 31 to move to the second state, and the water tank 11 flows water to the cleaning nozzle 92 through the cleaning pipe 91, and the cleaning nozzle 92 sprays water to the first filter 31 to clean the plastic waste and solid waste on the first filter 31. Plastic waste that is more difficult to clean can be cleaned manually. After cleaning, the first moving mechanism 8 drives the first filter back to the first state to continue sewage treatment.

[0056] As an optional implementation, a waste collection bucket 12 is provided on the frame 1 , and the waste collection bucket 12 is located below the cleaning nozzle 92 .

[0057] In the above embodiment, the waste is collected in the waste collection barrel 12 by washing the first filter screen 31 .

[0058] As an optional implementation, an opening 45 is provided on the X-direction side wall of the solid separation box, and a handle 431 is provided on one side of the third filter screen 43 in the X-direction. The shape of the handle 431 is interference fit with the opening 45 .

[0059] In the above embodiment, by inserting the third filter screen 43 into the opening 45 and making the handle 431 interference fit with the opening 45, the third filter screen 43 is located directly below the pressure plate 442, thereby separating the solid-liquid separation box into a first cavity and a second cavity together with the second filter screen 41 and the partition 42.

[0060] As an optional implementation, a branch pipe 71 is provided on the drainage pipe 7 , a water pump 711 is provided on the branch pipe 71 , and the branch pipe 71 is connected to the water tank 11 .

[0061] In the above embodiments, the sewage after multiple filtrations enters the water tank 11 through the water pump 711 to provide water source support for the cleaning device 9 .

[0062] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A solid-liquid separation device for sewage treatment, characterized in that: include: frame; The conveying device is connected to the frame, and the conveying device includes a sewage conveying box, a conveying shaft, a spiral blade and a driving motor. The driving motor is connected to the X-direction side of the sewage conveying box, the conveying shaft is located inside the sewage conveying box, the spiral blade is connected to the outer wall of the conveying shaft, the driving motor is drivingly connected to the conveying shaft, and the axial direction of the conveying shaft is the X-direction; Pretreatment device; The pretreatment device comprises a feed pipe and a first filter screen, wherein the feed pipe is connected to the upper part of the beginning of the sewage delivery box, and the first filter screen is detachably connected to the feed pipe; A solid-liquid separation box, the upper part of which is connected to the lower part of the end of the sewage delivery box through a water outlet pipe, and a second filter screen, a partition, a third filter screen and an extrusion device are arranged in the solid-liquid separation box; The second filter screen is connected to the solid-liquid separation box in an inclined manner, the high end of the second filter screen is located directly below the water outlet pipe, the upper part of the partition is connected to the low end of the second filter screen, and the third filter screen is detachably connected to the solid-liquid separation box; A vibrator connected to the lower side of the second filter screen; When the third filter screen is connected to the solid-liquid separation box, the first filter screen, the partition plate and the third filter screen separate the solid-liquid separation box into a first chamber and a second chamber, the extrusion device is located in the first chamber, and the extrusion includes a first cylinder and a pressing plate, the first cylinder is connected to the upper part of the solid-liquid separation box, the axial direction of the first cylinder is in the vertical direction, and the pressing plate is located above the third filter screen; A drainage pipe is connected to the bottom of the X-direction reverse side wall of the solid-liquid separation tank.

2. The solid-liquid separation device for sewage treatment according to claim 1, characterized in that: The sewage treatment solid-liquid separation device also includes a first moving mechanism, which includes a screw guide rail assembly, a slider and a second cylinder, the screw guide rail assembly is connected to the frame, the axial direction of the screw guide rail assembly is the X direction, the slider is slidably connected to the screw guide rail assembly, the second cylinder is connected to the slider, the axial direction of the second cylinder is the vertical direction, and the first filter is connected to the piston rod of the second cylinder; The first moving mechanism drives the first filter to switch between a first state and a second state; In the first state, the first filter is located in the feed pipe; In the second state, the first filter screen is located on one side of the feed pipe in the X direction.

3. The solid-liquid separation device for sewage treatment according to claim 2, characterized in that: The solid-liquid separation device for sewage treatment also includes a cleaning device, which is located on the X-direction side of the feed pipeline. The cleaning device includes a water pipe and a cleaning nozzle. A water tank is provided on the frame, one end of the water pipe is connected to the water tank, and the cleaning nozzle is connected to the other end of the water pipe; In the second state, the first filter screen is located below the cleaning nozzle, and the nozzle direction of the cleaning nozzle is toward the first filter screen.

4. The solid-liquid separation device for sewage treatment according to claim 1, characterized in that: A waste collection bucket is arranged on the frame and is located below the cleaning nozzle.

5. The solid-liquid separation device for sewage treatment according to claim 1, characterized in that: An opening is arranged on the X-direction side wall of the solid separation box, and a handle is arranged on one side of the third filter screen in the X-direction, and the shape of the handle is interference-fitted with the opening.

6. The solid-liquid separation device for sewage treatment according to claim 1, characterized in that: The drainage pipeline is provided with a branch pipe, the branch pipe is provided with a water pump, and the branch pipe is connected with the water tank.

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