Sludge discharge device for sewage treatment

Abstract

The utility model discloses a sewage treatment sludge discharge device which comprises a treatment box and a filter plate, the cross section of the filter plate is v-shaped, a gap is arranged between the rear side of the filter plate and the rear side wall of the treatment box, a barrier plate capable of moving back and forth is arranged in the gap on the rear side wall of the treatment box, and a sludge turnover box is arranged below the gap. A first sludge outlet is formed in the left end of the sludge turnover box; a first scraper capable of moving back and forth is arranged above the filter plate; a water outlet is formed in the right side wall of the treatment box and below the filter plate; a second sludge outlet is formed in the bottom of the left side wall of the treatment box; the gap is formed between the rear side of the filter plate and the rear side wall of the treatment box, and the barrier plate capable of moving back and forth is arranged in the gap, so that the barrier plate can prevent sewage from flowing into the sludge turnover box during filtration, and the sludge discharge effect and the sewage treatment efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment sludge discharging device. Background Art

[0002] A sewage treatment sludge discharging device is a device used to remove sediment and suspended matter in sewage, also known as a sewage treatment sedimentation tank or a sewage treatment sedimentation pond. Its main function is to separate large particle substances and solid particle substances in sewage through gravity sedimentation and mechanical screening, so as to reduce the burden on subsequent treatment equipment and improve the sewage treatment efficiency.

[0003] For sewage treatment sludge discharging devices, in the prior art, after retrieval, the utility model patent with the Chinese patent publication number CN220405047U discloses a sewage treatment sludge discharging device, as Figure 1 shown. It mainly includes a treatment tank a, an inlet b is provided at the upper end of the treatment tank a, a sludge discharge port c is provided at the lower end of one side of the treatment tank a, a filter plate d is provided below the inlet b in the treatment tank a, the filter plate d is gradually inclined downward from the side far away from the sludge discharge port c to the side close to the sludge discharge port c, there is a gap between the filter plate and the side of the treatment tank close to the sludge discharge port, a control box e is provided below the filter plate d, through holes are formed in the filter plate d, and a first scraper f is provided above the filter plate.

[0004] In the prior art, for sewage treatment sludge discharging devices with technical solutions similar to the above, it is found that there are certain defects in the actual implementation process: when sewage enters from the inlet, during the process of falling onto the filter plate and flowing downward through it, a considerable part of the sewage directly flows downward along the inclined surface of the filter plate and is discharged from the sludge discharge port, affecting the normal sludge discharging effect and the sewage treatment efficiency. Content of the Utility Model

[0005] In view of the deficiencies and defects existing in the prior art, the purpose of the utility model is to provide a sewage treatment sludge discharging device, which solves the problem that in the sewage treatment sludge discharging device in the prior art, when sewage enters from the inlet, during the process of falling onto the filter plate and flowing downward through it, a considerable part of the sewage directly flows downward along the inclined surface of the filter plate and is discharged from the sludge discharge port, affecting the normal sludge discharging effect and the sewage treatment efficiency.

[0006] To solve the above technical problems, the present utility model adopts the following technical solutions: A sewage treatment sludge discharge device, comprising a treatment tank and a filter plate. The cross-sectional shape of the filter plate is V-shaped. There is a gap between the rear side of the filter plate and the rear side wall of the treatment tank. A blocking plate that can move back and forth and can adhere to the rear side of the filter plate is provided in the gap on the rear side wall of the treatment tank. A sludge turnover tank is provided below the gap. The left side of the sludge turnover tank extends out of the treatment tank, and a first sludge discharge port is provided at the left end of the sludge turnover tank. Above the filter plate, a first scraper that can move back and forth is provided. The bottom of the first scraper is in contact with the filter plate. A drain port is provided on the right side wall of the treatment tank below the filter plate. A second sludge discharge port is provided at the bottom of the left side wall of the treatment tank. An inlet hopper is provided above the treatment tank, and the outlet of the inlet hopper is inclined towards one side edge of the filter plate.

[0007] As a further improvement of the present utility model, the blocking plate is connected to the rear side wall of the treatment tank through an electric push rod.

[0008] As a further improvement of the present utility model, the left and right ends of the first scraper are slidably connected to the treatment tank, and a driving mechanism for driving its sliding is provided on the first scraper.

[0009] As a further improvement of the present utility model, a separating plate that can move up and down is provided below the filter plate. A second scraper that can move left and right and expand and contract up and down is provided at the lower end of the separating plate. A plurality of sieve holes are provided on the separating plate, and the diameter of the sieve holes is larger than the diameter of the filter holes on the filter plate.

[0010] As a further improvement of the present utility model, slide bars are slidably connected to the left and right below the separating plate. A driving member for driving its sliding is provided on the slide bars, and the lower part of the slide bars is connected to the second scraper.

[0011] As a further improvement of the present utility model, the second scraper includes a fixing plate and a telescopic plate. The fixing plate is fixed on the slide bar, and the telescopic plate is slidably connected up and down on one side of the fixing plate.

[0012] As a further improvement of the present utility model, the bottom wall of the sludge turnover tank is inclined downward gradually from right to left.

[0013] Relative to the prior art, the present utility model has the following advantages:

[0014] 1. By providing a filter plate with a gap between the rear side of the filter plate and the rear side wall of the treatment tank, and a blocking plate that can move back and forth is provided in the gap on the rear side wall of the treatment tank. When filtering sewage, the blocking plate is made to adhere to the filter plate, and the blocking plate, the filter plate, and the treatment tank form a filter tank, so that sewage can be comprehensively filtered. When the filtering is completed and sludge needs to be discharged, the blocking plate is moved backward, that is, the blocking plate is separated from the filter plate. At this time, the first scraper is moved from front to back, and the first scraper scrapes the sludge on the filter plate into the sludge turnover box and finally flows out from the first sludge discharge port of the sludge turnover box. This avoids the problem that some sewage in the prior art directly flows away from the sludge discharge port without being filtered, and improves the sludge discharge effect and sewage treatment efficiency.

[0015] In addition, the filter plate is set in a V-shaped shape, and the outlet of the water inlet hopper is inclined towards one edge of the filter plate. Then the incoming sewage falls on the filter plate for filtering, and the filtered sludge slides towards the low point of the filter plate under the action of gravity, avoiding the blockage of the filter plate near the outlet of the water inlet hopper and improving the filtering efficiency.

[0016] 2. By providing a separation plate, a second scraper that can move left and right and stretch up and down is provided below the separation plate. When sewage is being treated and sewage enters, the separation plate is at a relatively high position. After the sewage treatment is completed, that is, when the cement in the sewage has settled downward and is stratified from the sewage, the separation plate moves downward to the stratification position of the sludge and the sewage. Then the sewage in the treatment tank is pumped out through the drain port. After that, the second sludge discharge port is opened, and the length of the second scraper is adjusted so that the bottom of the second scraper contacts the bottom of the treatment tank. Then the second scraper is gradually moved from right to left, and the second scraper discharges the sludge at the bottom of the treatment tank from the second sludge discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model with reference to the accompanying drawings:

[0018] Figure 1 is a structural schematic diagram of the prior art;

[0019] Figure 2 is a sectional structural schematic Figure 1 ;

[0020] Figure 3 is a sectional structural schematic Figure 2 ;

[0021] In the figure: 1, treatment tank; 2, filter plate; 3, gap; 4, blocking plate; 5, sludge turnover box; 6, first sludge discharge port; 7, first scraper; 8, drain port; 9, second sludge discharge port; 10, water inlet hopper; 11, electric push rod; 12, separation plate; 13, second scraper; 131, fixed plate; 132, telescopic plate; 14, sieve hole; 15, slide bar; 16, driving member. Detailed implementation mode

[0022] The following will further elaborate on the present utility model in conjunction with the appended Figure 2-3 drawings. For a clearer illustration, only the structures related to the inventive points of the present utility model are shown in the figures.

[0023] For the convenience of description, a coordinate system is now defined as Figure 2 shown, with the left - right direction being the horizontal direction, the front - back direction being the longitudinal direction, and the up - down direction being the vertical direction.

[0024] An embodiment of the present utility model discloses a sewage treatment sludge discharge device. Referring to Figure 2 and Figure 3 , a sewage treatment sludge discharge device includes a treatment tank 1 and a filter plate 2. The filter plate 2 is provided with filter holes. The cross - sectional shape of the filter plate 2 is V - shaped. A gap 3 is provided between the rear side of the filter plate 2 and the rear side wall of the treatment tank 1. A blocking plate 4 that can move back and forth and can adhere to the rear side of the filter plate 2 is provided in the gap 3 on the rear side wall of the treatment tank 1. Specifically, the blocking plate 4 is connected to the rear side wall of the treatment tank 1 through an electric push rod 11. A sludge turnover box 5 is provided below the gap 3. The left side of the sludge turnover box 5 extends out of the treatment tank 1, and a first sludge discharge port 6 is provided at the left end of the sludge turnover box 5. The bottom wall of the sludge turnover box 5 is inclined downward gradually from right to left.

[0025] In addition, a first scraper 7 that can move back and forth is provided above the filter plate 2. The bottom of the first scraper 7 is in contact with the filter plate 2. Specifically, the left and right ends of the first scraper 7 are slidably connected to the front and rear of the treatment tank 1. A driving mechanism for driving its sliding is provided on the first scraper 7. The driving mechanism can be a traveling motor or a pneumatic push rod.

[0026] As Figure 2 and Figure 3 shown, a drain port 8 is provided on the right side wall of the treatment tank 1 below the filter plate 2. A second sludge discharge port 9 is provided at the bottom of the left side wall of the treatment tank 1. An inlet hopper 10 is provided above the treatment tank 1. The outlet of the inlet hopper 10 is inclined towards one side edge of the filter plate 2.

[0027] In addition, a separation plate 12 that can move up and down is provided below the filter plate 2. The separation plate 12 is slidably connected to the treatment tank 1 up and down. A traveling motor (not shown in the drawings) for driving the separation plate 12 to move up and down is provided on the separation plate 12. A plurality of sieve holes 14 are provided on the separation plate 12. The diameter of the sieve holes 14 is larger than the diameter of the filter holes on the filter plate 2. A second scraper 13 that can move left - right and stretch up - down is provided at the lower end of the separation plate 12. Specifically, as Figure 4As shown in the figure, a slide bar 15 can be slidably connected to the left and right below the separation plate 12. For example, a chute can be provided on the separation plate 12, and the slide bar 15 is slidably connected to the chute through a slider. A driving member 16 capable of driving its sliding is provided on the slide bar 15. The driving member 16 can be a traveling motor or an electric push rod 11. The lower part of the slide bar 15 is connected to the second scraper 13. The second scraper 13 includes a fixed plate 131 and a telescopic plate 132. The fixed plate 131 is fixed on the slide bar 15, and the telescopic plate 132 is slidably connected up and down on one side of the fixed plate 131. By providing the separation plate 12 and providing the second scraper 13 that can move left and right and expand and contract up and down below the separation plate 12, when sewage is treated and sewage enters, the separation plate 12 is at a relatively high position. After the sewage treatment is completed, that is, the cement in the sewage has settled downward and is stratified with the sewage, the separation plate 12 moves downward to the stratification position of the sludge and the sewage. Then, the sewage in the treatment tank 1 is pumped out through the drain port 8. After that, the second sludge discharge port 9 is opened, and the length on the second scraper 13 is adjusted so that the bottom of the second scraper 13 contacts the bottom of the treatment tank 1. Then, the second scraper 13 is gradually moved from right to left, and the second scraper 13 discharges the sludge at the bottom of the treatment tank 1 from the second sludge discharge port 9.

[0028] In the present utility model, by providing the filter plate 2, a gap 3 is provided between the rear side of the filter plate 2 and the rear side wall of the treatment tank 1. A blocking plate 4 that can move back and forth is provided in the gap 3 on the rear side wall of the treatment tank 1. When filtering sewage, the blocking plate 4 is attached to the filter plate 2. The blocking plate 4, the filter plate 2, and the treatment tank 1 form a filter tank, so that sewage can be comprehensively filtered. When the filtering is completed and sludge needs to be discharged, the blocking plate 4 is moved backward, that is, the blocking plate 4 is separated from the filter plate 2. At this time, the first scraper 7 is moved from front to back, and the first scraper 7 scrapes the sludge on the filter plate 2 into the sludge turnover box 5 and finally flows out from the first sludge discharge port 6 of the sludge turnover box 5. It avoids the problem that some sewage in the prior art directly flows away from the sludge discharge port without being filtered, and improves the sludge discharge effect and sewage treatment efficiency.

[0029] In addition, the filter plate 2 is set in a V shape, and the outlet of the water inlet hopper 10 is inclined toward one side edge of the filter plate 2. Then, the incoming sewage falls onto the filter plate 2 for filtering, and the filtered sludge slides toward the low point of the filter plate 2 under the action of gravity, avoiding the blockage of the filter plate 2 near the outlet of the water inlet hopper 10 and improving the filtering efficiency.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. It should be understood that the specific embodiments described herein are only for understanding the present utility model and are not used to limit the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Claims

1. A sewage treatment and sludge discharge device, comprising a treatment box and a filter plate, characterized in that: The filter plate has a V-shaped cross-sectional shape, and a gap is provided between the rear side of the filter plate and the rear side wall of the treatment box. A blocking plate that can move forward and backward and can be attached to the rear side of the filter plate is provided on the rear side wall of the treatment box in the gap. A sludge turnover box is provided below the gap, and the left side of the sludge turnover box extends out of the treatment box, and a first mud discharge port is provided at the left end of the sludge turnover box. A first scraper that can move forward and backward is provided above the filter plate, and the bottom of the first scraper is attached to the filter plate. A drain port is provided on the right side wall of the treatment box below the filter plate, and a second mud discharge port is provided at the bottom of the left side wall of the treatment box. A water inlet hopper is provided above the treatment box, and the outlet of the water inlet hopper is inclined toward one side edge of the filter plate.

2. A sewage treatment sludge discharge device according to claim 1, characterized in that: The blocking plate is connected to the rear side wall of the processing box through an electric push rod.

3. A sewage treatment sludge discharge device according to claim 1, characterized in that: The left and right ends of the first scraper are slidably connected to the processing box, and a driving mechanism capable of driving the first scraper to slide is provided on the first scraper.

4. A sewage treatment sludge discharge device according to claim 1, characterized in that: A separation plate that can move up and down is provided below the filter plate, and a second scraper that can move left and right and stretch up and down is provided at the lower end of the separation plate. A plurality of sieve holes are provided on the separation plate, and the diameter of the sieve holes is larger than the diameter of the filter holes on the filter plate.

5. A sewage treatment sludge discharge device according to claim 4, characterized in that: A slide bar is slidably connected to the left and right below the separation plate, and a driving member capable of driving the slide bar to slide is provided on the slide bar, and the slide bar is connected to the second scraper below.

6. A sewage treatment sludge discharge device according to claim 4, characterized in that: The second scraper includes a fixed plate and a telescopic plate, wherein the fixed plate is fixed on the slide bar, and the telescopic plate is connected to one side of the fixed plate in an up-and-down sliding manner.

7. A sewage treatment sludge discharge device according to any one of claims 1 to 6, characterized in that: The bottom wall of the sludge turnover box is gradually inclined downward from right to left.

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