Sludge dewatering equipment

Abstract

The utility model relates to the technical field of sludge purification equipment, and particularly discloses sludge dewatering equipment which comprises a shell, a filter box is mounted in the shell in an up-and-down sliding manner, a plurality of filter holes are formed in the inner bottom wall of the filter box, filter screens are mounted in the filter holes, a collecting box is mounted at the top of the shell, and the collecting box is communicated with a first corrugated pipe; and a first water pump is arranged in the first corrugated pipe. Sludge and water are layered by precipitating the sludge, the layered water is filtered into the filter box, the precipitated sludge is layered, the sludge and the water are layered, sludge impurities contained in the water entering the filter box are reduced as much as possible, and the water quality is improved. Therefore, the filter screen is prevented from being blocked by the sludge when the sludge is dewatered, and the dewatering efficiency of the sludge is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge purification equipment, in particular to sludge dewatering equipment. Background Art

[0002] Sludge is solid sediment produced by water and sewage treatment processes.

[0003] After searching, it was found that the Chinese patent with application number 202320203470.2 disclosed "a sludge treatment and dewatering device, including a shell provided with a drainage bin and a purification bin, a first motor is installed inside the shell, the first motor passes through the top of the shell and extends to one end of the drainage bin and is fixedly connected to the purification bin, a plurality of filter screens are installed at equal intervals through the inner wall of the purification bin, a driving component is installed on the outer wall of the shell, and a plugging component driven by the driving component to realize opening and closing adjustment is installed on the upper ends of the drainage bin and the purification bin, and the plugging component is connected to the first connecting rod. A second connecting rod is fixedly connected, and both ends of the second connecting rod are fixedly connected with a scraper, and the scraper and the inner wall of the purification bin are against the filter screen, and the driving component drives the blocking component and the first connecting rod to move up and down. "; However, when the above-mentioned sludge treatment and dehydration equipment dehydrates the water in the sludge, it uses centrifugal force to throw the water out of the sludge, but when the sludge and water are thrown by the centrifugal force, the sludge and water will be tightly attached to the filter screen, causing the filter screen to be blocked by the sludge, affecting the efficiency of sludge dehydration. Therefore, in order to solve such problems, a sludge dehydration equipment is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a sludge dewatering device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sludge dewatering device comprises a shell, in which a filter box is slidably installed up and down, a plurality of filter holes are opened in the bottom wall of the filter box, a filter screen is installed in the filter holes, a collecting box is installed on the top of the shell, the collecting box is connected to a first corrugated pipe, a first water pump is arranged in the first corrugated pipe, an end of the first corrugated pipe passes through the shell and is inserted into the filter box, an end of the first corrugated pipe is connected to a spherical screen, and the spherical screen is located in the filter box.

[0007] Preferably, a clean water tank is installed on the top of the shell, the clean water tank is connected to a second bellows, a second water pump is arranged in the second bellows, the second bellows passes through the shell and is inserted into the filter box, a clean water pipe is installed on the top wall of the filter box, a plurality of nozzles connected to the clean water pipe are installed on the bottom of the outer wall of the clean water pipe, and the end of the second bellows is connected to the clean water pipe.

[0008] Preferably, the first water pump and the second water pump are both installed on the top of the filter box.

[0009] Preferably, the top of the shell is connected to a top plate via a support column, an electric telescopic rod is installed at the bottom of the top plate, and the piston rod end of the electric telescopic rod is inserted into the shell and connected to the top of the filter box.

[0010] Preferably, a reinforcing block is connected to the end of the piston rod of the electric telescopic rod, the reinforcing block is installed on the top of the filter box, the bottom end of the support column is installed on the top of the shell, and the top end of the support column is installed on the bottom of the top plate.

[0011] Preferably, a support plate is installed on the top wall of the filter box, and the cleaning water pipe is installed on the bottom of the support plate.

[0012] Preferably, the spherical screen is in contact with the inner bottom wall of the filter box, a feed port is provided on the side of the shell, the feed port is located below the filter box, and a discharge port is provided on the inner bottom wall of the shell.

[0013] Preferably, two supporting legs are symmetrically installed at the bottom of the shell, a bottom plate is installed at the bottom of the supporting legs, and a mounting hole is opened on the bottom plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1: In the utility model, sludge is precipitated to separate sludge and water, and the separated water is then filtered into a filter box. The sludge after precipitation is separated into layers, so that the sludge and water are separated, thereby reducing the sludge impurities contained in the water entering the filter box as much as possible, thereby avoiding sludge clogging the filter screen when the sludge is dehydrated, thereby improving the dehydration efficiency of the sludge.

[0016] 2: In the utility model, the second water pump draws the clean water in the clean water tank into the second bellows, and the water entering the second bellows enters the clean water pipe. The water entering the clean water pipe is sprayed out through the nozzle to clean the inner wall of the filter box by spraying water, and the nozzle can also be used to spray water to clean the filter screen in the filter hole on the bottom wall of the filter box, which can maintain the cleanliness of the filter screen and the inner wall of the filter box, making it easy to clean the filter box and the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a sludge dewatering device proposed by the utility model from a first perspective;

[0018] Figure 2 This is a structural schematic diagram of a sludge dewatering device proposed by the utility model from a second perspective;

[0019] Figure 3A partial cross-sectional view of a shell of a sludge dewatering device proposed by the utility model;

[0020] Figure 4 The utility model is a partial cross-sectional view of a filter box of a sludge dewatering device.

[0021] In the figure: 1. Shell; 2. Support column; 3. Top plate; 4. Electric telescopic rod; 5. Collecting box; 6. Clean water tank; 7. Support leg; 8. Bottom plate; 9. Feed port; 10. Discharge port; 11. Filter box; 12. Filter hole; 13. Spherical screen; 14. First bellows; 15. First water pump; 16. Second bellows; 17. Second water pump; 18. Reinforcement block; 19. Filter; 20. Support plate; 21. Clean water pipe; 22. Nozzle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A sludge dewatering device includes a shell 1, a filter box 11 is slidably installed in the shell 1, a plurality of filter holes 12 are opened in the bottom wall of the filter box 11, a filter screen 19 is installed in the filter hole 12, a collecting box 5 is installed on the top of the shell 1, the collecting box 5 is connected to a first corrugated pipe 14, a first water pump 15 is arranged in the first corrugated pipe 14, the end of the first corrugated pipe 14 passes through the shell 1 and is inserted into the filter box 11, the end of the first corrugated pipe 14 is connected to a spherical screen 13, and the spherical screen 13 is located in the filter box 11.

[0024] As a technical optimization scheme of the utility model, a clean water tank 6 is installed on the top of the shell 1, and the clean water tank 6 is connected to the second bellows 16. A second water pump 17 is arranged in the second bellows 16. The second bellows 16 passes through the shell 1 and is inserted into the filter box 11. A clean water pipe 21 is installed on the top wall of the filter box 11. A plurality of nozzles 22 connected to the clean water pipe 21 are installed on the bottom of the outer wall of the clean water pipe 21. The end of the second bellows 16 is connected to the clean water pipe 21. Through the coordinated use of the clean water tank 6, the second bellows 16, the second water pump 17, the clean water pipe 21 and the nozzle 22, it is convenient to use the nozzle 22 to spray clean water on the inner wall of the filter box 11 and the filter net 19 for cleaning treatment in the later stage.

[0025] As a technical optimization solution of the utility model, the first water pump 15 and the second water pump 17 are both installed on the top of the filter box 11.

[0026] As a technical optimization solution of the utility model, the top of the shell 1 is connected to the top plate 3 through the support column 2, and the bottom of the top plate 3 is installed with an electric telescopic rod 4. The piston rod end of the electric telescopic rod 4 is inserted into the shell 1 and connected to the top of the filter box 11. The extension or retraction of the piston rod of the electric telescopic rod 4 can drive the filter box 11 to move up and down in the shell 1.

[0027] As a technical optimization solution of the utility model, the end of the piston rod of the electric telescopic rod 4 is connected to a reinforcing block 18, the reinforcing block 18 is installed on the top of the filter box 11, the bottom end of the support column 2 is installed on the top of the shell 1, and the top end of the support column 2 is installed on the bottom of the top plate 3. The reinforcing block 18 can increase the connection strength between the end of the piston rod of the electric telescopic rod 4 and the filter box 11.

[0028] As a technical optimization solution of the utility model, a support plate 20 is installed on the inner top wall of the filter box 11, and a clean water pipe 21 is installed at the bottom of the support plate 20. The support plate 20 can facilitate the connection between the clean water pipe 21 and the inner top wall of the filter box 11.

[0029] As a technical optimization scheme of the utility model, the spherical screen 13 is in contact with the inner bottom wall of the filter box 11, a feed port 9 is opened on the side of the shell 1, the feed port 9 is located below the filter box 11, and a discharge port 10 is opened on the inner bottom wall of the shell 1. The spherical screen 13 can filter the water entering the first corrugated pipe 14 to prevent impurities from entering the first corrugated pipe 14 and causing blockage of the first water pump 15.

[0030] As a technical optimization solution of the present utility model, two supporting legs 7 are symmetrically installed at the bottom of the shell 1, and a base plate 8 is installed at the bottom of the supporting legs 7. A mounting hole is opened on the base plate 8. The supporting legs 7 and the base plate 8 can provide support for the device, and the mounting holes on the base plate 8 can facilitate the fixation of the base plate 8, thereby facilitating the installation and fixation of the device.

[0031] When the utility model is used, when the sludge needs to be dehydrated, first, the sludge to be dehydrated is injected into the shell 1 through the feed port 9, and the sludge to be dehydrated that enters the shell 1 falls on the inner bottom wall of the shell 1.

[0032] After the sludge to be dehydrated is injected into the shell 1 and falls on the inner bottom wall of the shell 1, the sludge falling on the inner bottom wall of the shell 1 is precipitated. The sludge will settle to the bottom under its own weight, while the water in the sludge is above the sludge.

[0033] The sludge to be dehydrated is precipitated to separate the sludge and water. At this time, the electric telescopic rod 4 is started, and the piston rod of the electric telescopic rod 4 pushes the filter box 11 downward. The filter box 11 moves downward so that the bottom end of the filter box 11 enters the separated water. The separated water enters the filter box 11 through the filter hole 12 and the filter net 19 at the bottom of the filter box 11. The separated water is filtered into the filter box 11 by the filter net 19. When the water enters the filter box 11, the first water pump 15 is started. The first water pump 15 passes through the first bellows 14 and The spherical screen 13 draws the water entering the filter box 11 into the first corrugated pipe 14, and then transports the water entering the first corrugated pipe 14 to the collecting box 5. The device utilizes sludge sedimentation to separate the sludge and water into layers, and then filters the separated water into the filter box 11. The sludge after sedimentation is separated into layers, so that the sludge and water are separated, thereby reducing the sludge impurities contained in the water entering the filter box 11 as much as possible, thereby avoiding sludge clogging the filter screen 19 when the sludge is dehydrated, thereby improving the dehydration efficiency of the sludge.

[0034] After the sludge is precipitated, the sludge and water are separated into layers. The separated water is relatively clean, and the impurities in the water sink to the lower layer under the action of its own gravity, so that the separated water maintains a certain degree of cleanliness, thereby preventing the sludge and the impurities in the sludge from clogging the filter 19 when the sludge is dehydrated.

[0035] After the sludge is dehydrated, the dehydrated sludge can be discharged through the discharge port 10 .

[0036] When it is necessary to clean the filter box 11 and the filter screen 19, start the second water pump 17, and the second water pump 17 pumps the clean water in the clean water tank 6 into the second bellows 16. The water entering the second bellows 16 enters the clean water pipe 21. The water entering the clean water pipe 21 is sprayed out through the nozzle 22 to clean the inner wall of the filter box 11 by spraying water. The nozzle 22 can also be used to spray water to clean the filter screen 19 in the filter hole 12 on the inner bottom wall of the filter box 11, which can maintain the cleanliness of the filter screen 19 and the inner wall of the filter box 11, making it easier to clean the filter box 11 and the filter screen 19.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sludge dewatering device, comprising a housing (1), characterized in that: A filter box (11) is slidably mounted in the housing (1) up and down, a plurality of filter holes (12) are provided in the bottom wall of the filter box (11), a filter screen (19) is installed in the filter hole (12), a collection box (5) is mounted on the top of the housing (1), the collection box (5) is connected to a first bellows (14), a first water pump (15) is arranged in the first bellows (14), an end of the first bellows (14) passes through the housing (1) and is inserted into the filter box (11), an end of the first bellows (14) is connected to a spherical screen (13), and the spherical screen (13) is located in the filter box (11).

2. A sludge dewatering equipment according to claim 1, characterized in that: A clean water tank (6) is installed on the top of the housing (1), the clean water tank (6) is connected to a second bellows (16), a second water pump (17) is arranged in the second bellows (16), the second bellows (16) passes through the housing (1) and is inserted into the filter box (11), a clean water pipe (21) is installed on the top wall of the filter box (11), a plurality of nozzles (22) connected to the clean water pipe (21) are installed at the bottom of the outer wall of the clean water pipe (21), and the end of the second bellows (16) is connected to the clean water pipe (21).

3. A sludge dewatering equipment according to claim 2, characterized in that: The first water pump (15) and the second water pump (17) are both installed on the top of the filter box (11).

4. The sludge dewatering equipment according to claim 1, characterized in that: The top of the housing (1) is connected to a top plate (3) via a support column (2), an electric telescopic rod (4) is installed at the bottom of the top plate (3), and the piston rod end of the electric telescopic rod (4) is inserted into the housing (1) and connected to the top of the filter box (11).

5. The sludge dewatering equipment according to claim 4, characterized in that: The piston rod end of the electric telescopic rod (4) is connected to a reinforcing block (18), the reinforcing block (18) is mounted on the top of the filter box (11), the bottom end of the support column (2) is mounted on the top of the housing (1), and the top end of the support column (2) is mounted on the bottom of the top plate (3).

6. The sludge dewatering equipment according to claim 2, characterized in that: A support plate (20) is installed on the inner top wall of the filter box (11), and a clean water pipe (21) is installed on the bottom of the support plate (20).

7. The sludge dewatering equipment according to claim 1, characterized in that: The spherical screen (13) is in contact with the inner bottom wall of the filter box (11); a feed port (9) is provided on the side of the shell (1), the feed port (9) is located below the filter box (11); and a discharge port (10) is provided on the inner bottom wall of the shell (1).

8. The sludge dewatering equipment according to claim 1, characterized in that: Two supporting legs (7) are symmetrically mounted on the bottom of the housing (1); a bottom plate (8) is mounted on the bottom of the supporting legs (7); and a mounting hole is provided on the bottom plate (8).

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