Sludge storage device used in wastewater treatment process

Abstract

The utility model discloses a sludge storage device used in wastewater treatment process, which comprises a sludge storage tank, a sludge filtering component is mounted in an inner cavity of the sludge storage tank, a drainage component is fixedly connected to the inner wall of the sludge storage tank, the sludge storage tank comprises a tank body, the inner cavity of the tank body is divided into a front part and a rear part by the sludge filtering component, and the drainage component is fixedly connected to the inner wall of the sludge storage tank. One end of the drainage assembly floats on the liquid level, the other end of the drainage assembly is communicated with the drainage pipe, the drainage assembly is used for draining supernatant liquid in the inner cavity of the tank body, and meanwhile, the drainage assembly is automatically closed when the supernatant liquid is less. According to the utility model, the mud filtering assembly is arranged, so that the interference on the inner cavity of the rear part of the tank body when mud enters is reduced, the time consumed by gravity separation is reduced, and the water draining assembly is arranged, so that automatic discharging and closing are realized, and the labor capacity of workers in the treatment process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a mud storage device used in the process of wastewater treatment. Background Art

[0002] Wastewater treatment is to treat wastewater using physical, chemical and biological methods to purify wastewater, reduce pollution, and even recycle and reuse wastewater to make full use of water resources. Gravity separation separates suspended solids in wastewater by utilizing the difference between the density of suspended solids in wastewater and the density of water. It does not require external power, does not consume chemicals, does not cause secondary pollution, and has low operating and maintenance costs. It is a very economical wastewater treatment method.

[0003] After searching, the application number CN202021618949.5 discloses a sludge storage tank, including a sludge storage tank, a thickened wall is arranged on the left side wall of the sludge storage tank, sludge is accumulated at the bottom of the sludge storage tank, there is supernatant above the sludge, and a drain outlet is arranged on the right wall of the sludge storage tank, the drain outlet is connected to a drain pipe, and a float is arranged on the top of the drain pipe, which can improve the supernatant discharge efficiency and increase the sludge discharge amount.

[0004] In the existing mud storage device, the flowing mud will interfere with the sedimentation system when entering the mud, reducing the purity of the supernatant. At the same time, after the supernatant is discharged to a certain level, the drain pipe needs to be closed manually. During the treatment process, the staff needs to observe at any time, which increases the manpower investment cost. Utility Model Content

[0005] The purpose of the utility model is to provide a sludge storage device used in the wastewater treatment process to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a sludge storage device for use in a wastewater treatment process, comprising a sludge storage tank, a filter mud assembly is installed in the inner cavity of the sludge storage tank, a drainage assembly is fixedly connected to the inner wall of the sludge storage tank, the sludge storage tank comprises a tank body, a mud inlet pipe is fixedly connected to the front end face of the tank body, a drainage pipe is fixedly connected to the rear end face of the tank body, the filter mud assembly divides the inner cavity of the tank body into front and rear parts, the front and rear cavities are respectively connected to the drainage pipe and the sludge inlet pipe, one end of the drainage assembly floats on the liquid surface, and the other end of the drainage assembly is connected to the drainage pipe, the drainage assembly is used to discharge the upper clear liquid in the tank body cavity, and the drainage assembly is automatically closed when the upper clear liquid is less.

[0007] As a further preference, two groups of installation grooves are symmetrically opened on the left and right sides of the inner wall of the pool body, a limiting groove is opened at the front end of the inner cavity of the pool body, and a mud discharge pipe is fixedly connected to the lower edge of the outer wall of the pool body, and the mud discharge pipe is connected to the rear part of the pool body.

[0008] As a further preference, the filter mud assembly includes a receiving plate, a filter mud plate is fixedly connected to one side of the upper end of the receiving plate, mounting strips are fixedly connected on both sides of the filter mud plate, the mounting strips are slidably connected in the mounting groove, a limiting block is fixedly connected to the front end of the receiving plate, and the limiting block is slidably connected in the limiting groove.

[0009] As a further preference, the drainage assembly includes a water inlet hopper, a drainage hose is fixedly connected to the lower end of the water inlet hopper, a filter plate is fixedly connected to the inner wall of the water inlet hopper, and a sealing cover is installed at the upper port of the water inlet hopper.

[0010] As a further preference, the sealing cover includes a cover plate, a cavity is opened inside the cover plate, a sealing ring is fixedly connected to the lower end of the cover plate, a plurality of groups of elastic ropes are fixedly connected to the lower end surface of the cover plate at circumferential intervals, the elastic ropes are installed in the internal area of ​​the sealing ring, and one end of the elastic rope facing away from the cover plate is fixedly connected to the upper end surface of the filter plate.

[0011] As a further preference, the sealing ring is made of elastic material, and the outer wall of the sealing ring is in contact with the inner wall of the water inlet hopper.

[0012] Through the above technical solution, the sludge storage device for wastewater treatment provided by the utility model has the following benefits:

[0013] 1. The utility model provides a filter mud assembly, and the mud entering through the mud inlet pipe surges in the inner cavity of the front part of the pool body. The mud passes through the filter mud plate and enters the rear part of the inner cavity of the pool body to reduce the mud flow rate and perform preliminary filtration on the mud. When the sludge on the upper end of the limit block is deposited to a certain thickness, the mud in the front part of the pool body is stratified, and the liquid with low sludge content in the upper layer overflows from the top of the filter mud plate into the rear part of the inner cavity of the pool body. The rear part of the inner cavity of the pool body is separated by gravity to form sludge at the bottom and clear liquid at the top, and then the clear liquid is discharged through the drainage assembly, thereby reducing the interference of the mud on the inner cavity of the rear part of the pool body when entering. At the same time, it is filtered by the filter mud plate, reducing the sludge content in the rear cavity, thereby reducing the time consumed by gravity separation.

[0014] 2. The utility model sets a drainage component, and the cover plate is suspended on the surface of the supernatant liquid. The lower end of the elastic rope is deformed and stretched by the downward gravity of the filter plate and the water inlet bucket, so that the sealing ring moves out of the upper end of the water inlet bucket. The supernatant enters from the upper end of the water inlet bucket, is filtered by the filter plate, and is connected to the drain pipe through the drainage hose and discharged to the outside of the sludge storage tank. When the supernatant liquid level drops to a certain level, the buoyancy of the cover plate is reduced, and the deformed elastic rope pulls the cover plate closer to the water inlet bucket, so that the sealing ring moves to the inner wall of the water inlet bucket to seal the upper end of the water inlet bucket, so as to prevent the sludge from entering the drain pipe through the drainage component when the supernatant liquid is insufficient. The automatic discharge and closing of the drainage component reduces the workload of the staff during the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a mud storage device used in a wastewater treatment process according to the utility model.

[0016] Figure 2 This is a schematic diagram of the partial cross-section structure of the mud storage device of the utility model

[0017] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the mud storage tank of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the filter mud component of the utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the drainage component of the utility model.

[0020] Figure 6 It is a schematic diagram of the sealing cover structure of the utility model.

[0021] In the figure: 1 mud storage tank, 11 limiting groove, 12 mounting groove, 13 drainage pipe, 14 tank body, 15 mud discharge pipe, 16 mud inlet pipe, 2 mud filter assembly, 21 lifting ring, 22 mud filter plate, 23 mounting strip, 24 limiting block, 25 receiving plate, 3 drainage assembly, 31 drainage hose, 32 filter plate, 33 sealing cover, 331 cavity, 332 cover plate, 333 sealing ring, 334 elastic rope, 34 water inlet bucket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model is further described in detail with reference to the accompanying drawings.

[0024] See also Figure 1 - Figure 6 , which is a mud storage device used in a wastewater treatment process provided by the utility model, comprises a mud storage tank 1, a filter mud component 2 and a drainage component 3.

[0025] Among them, see Figure 1 - Figure 3The mud storage tank 1 includes a tank body 14, a mud inlet pipe 16 is fixedly connected to the lower end of the front end surface of the tank body 14, a drainage pipe 13 is fixedly connected to the rear end surface of the tank body 14 near the upper end, two groups of mounting grooves 12 are symmetrically opened on the left and right sides of the inner wall of the tank body 14, a limiting groove 11 is opened on the front end surface of the inner wall of the tank body 14, a mud discharge pipe 15 is fixedly connected to the lower end of the side wall of the tank body 14, and a mud filter assembly 2 is slidably connected to the inner wall of the tank body 14. The mud filter assembly 2 divides the inner cavity of the tank body 14 into two parts, namely, the mud enters the front part of the tank body 14 through the mud inlet pipe 16, and enters the rear part of the tank body 14 after being filtered by the mud filter assembly 2. After gravity separation in the inner cavity of the rear part of the tank body 14, the upper supernatant is discharged through the drainage assembly 3 through the drainage pipe 13, and the sludge deposited at the lower end is discharged through the mud discharge pipe 15.

[0026] For details, please refer to Figure 4 In order to reduce the influence of mud influx on the gravity separation system, the filter mud assembly 2 includes a receiving plate 25, a filter mud plate 22 is fixedly connected to the rear side of the upper end surface of the receiving plate 25, the filter mud plate 22 and the receiving plate 25 are fixedly connected in an L-shaped manner, both sides of the filter mud plate 22 are fixedly connected with mounting strips 23, the mounting strips 23 are slidably connected in the mounting groove 12, the front end surface of the receiving plate 25 is fixedly connected with a limiting block 24, the limiting block 24 is slidably connected in the limiting groove 11, the upper end surface of the filter mud plate 22 is fixedly connected with a lifting ring 21, and the filter mud plate 22 can be fixedly connected with the lifting ring 21 by an external crane. The mud assembly 2 is lifted upward from the inner cavity of the tank body 14 as a whole, and the mud enters the filter mud plate 22 through the mud inlet pipe 16, and enters the front inner cavity A surrounded by the receiving plate 25 and the inner wall of the tank body 14. The mud is filtered through the filter mud plate 22 and enters the rear inner cavity B, while greatly reducing the interference of the mud surge on the gravity separation system of the rear inner cavity. As the mud increases, the mud is initially separated by gravity in area A, and the upper layer of liquid with less silt overflows to area B through the top of the filter mud plate 22, greatly reducing the mud content in area B, thereby saving the time required for subsequent gravity separation.

[0027] It should be noted that when the sludge in the pool body 14 is deposited to more than half the height of the inner cavity of the pool body 14, the filter mud assembly 2 is moved upward through an external crane connected to the lifting ring 21 and taken out from the upper end of the pool body 14. After the limit block 24 and the lifting ring 21 are thoroughly cleaned, the mounting strip 23 is aligned with the mounting groove 12 and replaced in the inner cavity of the pool body 14.

[0028] For details, please refer to Figure 5 and Figure 6In order to realize automatic discharge of supernatant liquid, the drainage assembly 3 includes a drainage hose 31, one end of the drainage hose 31 is connected to the drainage pipe 13, the other end of the drainage hose 31 is fixedly connected to a water inlet bucket 34, the inner wall of the water inlet bucket 34 is fixedly connected to a filter plate 32, and a sealing cover 33 is installed on the upper end of the water inlet bucket 34. When the sealing cover 33 is opened, the supernatant liquid is filtered through the filter plate 32 and enters the water inlet bucket 34, and then is transmitted to the drainage pipe 13 through the drainage hose 31, and finally discharged from the drainage pipe 13. The sealing cover 33 includes a cover plate 332, and a sealing ring 333 is fixedly connected to the lower end of the cover plate 332. The outer wall of the sealing ring 333 is in contact with the inner wall of the water inlet bucket 34, and the lower end surface of the cover plate 332 is fixedly connected with a plurality of groups of elastic ropes 33 at circumferential intervals. 4. The end of the elastic rope 334 facing away from the cover plate 332 is fixedly connected to the upper end surface of the filter plate 32. The cover plate 332 floats on the surface of the supernatant liquid due to the buoyancy. The lower end of the elastic rope 334 is deformed and stretched due to the gravity of the filter plate 32 and the water inlet bucket 34, so that the sealing ring 333 moves out of the upper end of the water inlet bucket 34, and the supernatant enters from the upper end of the water inlet bucket 34 to realize the discharge of the clear liquid. When the level of the supernatant liquid is low, the buoyancy of the cover plate 332 becomes smaller, and the deformed elastic rope 334 pulls the cover plate 332 to move closer to the upper end of the water inlet bucket 34, so that the sealing ring 333 moves back to the inside of the water inlet bucket 34, and the upper end of the water inlet bucket 34 is sealed to prevent mud from entering the drain pipe 13 through the drainage component 3, thereby reducing the cleanliness of the supernatant liquid.

[0029] It should be noted that a cavity 331 is provided inside the cover plate 332 , which can reduce the deadweight of the cavity 331 and increase the load-bearing capacity of the cover plate 332 in the liquid phase.

[0030] It should also be noted that when the cover plate 332 and the water inlet bucket 34 are not affected by buoyancy, the elastic rope 334 is in a stretched state. At this time, the cover plate 332 is tightly attached to the upper end of the water inlet bucket 34, and the sealing ring 333 is located in the inner cavity of the water inlet bucket 34 to seal the upper end of the water inlet bucket 34.

[0031] It should be added that there are at least three groups of elastic ropes 334 , which are arranged perpendicular to the cover plate 332 and the filter plate 32 to prevent the sealing ring 333 from shifting when pulling the cover plate 332 to move, thereby affecting the sealing of the upper port of the water inlet bucket 34 .

[0032] Principle: The mud enters area A through the mud inlet pipe 16, and enters area B after being filtered through the filter mud plate 22. As the mud increases, the mud in area A is separated by gravity, and the upper layer of liquid with a lower sludge content overflows to area B through the top of the filter mud plate 22, reducing the sludge content in the system in area B, thereby reducing the gravity separation time of area B. The cover plate 332 floats on the surface of the supernatant liquid due to the buoyancy of the supernatant liquid in area B. At the same time, the lower end of the elastic rope 334 is stretched and deformed by the gravity of the filter plate 32 and the water inlet bucket 34, and the water inlet bucket 34 moves downward, causing the sealing ring 333 to move out of the inner wall of the water inlet bucket 34, and the supernatant is filtered into the filter plate 32 through the upper port of the water inlet bucket 34. The sludge in area B is discharged to the outside through the mud discharge pipe 15. When the upper liquid level is low, the buoyancy of the cover plate 332 is reduced, and the deformed elastic rope 334 pulls the cover plate 332 to move closer to the port of the water inlet bucket 34, so that the sealing ring 333 moves back to the inside of the water inlet bucket 34, and the upper port of the water inlet bucket 34 is sealed to prevent the mud from flowing into the drain pipe 13 through the drainage component 3. When the thickness of the deposited sludge in the pool body 14 exceeds one-half of the height of the inner cavity of the pool body 14, the lifting ring 21 is hooked by an external crane to move the limit block 24 out of the pool body 14 for thorough cleaning.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge storage device for use in a wastewater treatment process, comprising a sludge storage tank (1), characterized in that: The inner cavity of the sludge storage tank (1) is installed with a filter mud assembly (2), and the inner wall of the sludge storage tank (1) is fixedly connected with a drainage assembly (3). The sludge storage tank (1) comprises a tank body (14), the front end surface of the tank body (14) is fixedly connected with a sludge inlet pipe (16), and the rear end surface of the tank body (14) is fixedly connected with a drainage pipe (13). The filter mud assembly (2) divides the inner cavity of the tank body (14) into two parts, front and rear. The inner cavities of the front and rear parts are respectively connected with the drainage pipe (13) and the sludge inlet pipe (16). One end of the drainage assembly (3) floats on the liquid surface, and the other end of the drainage assembly (3) is connected with the drainage pipe (13). The drainage assembly (3) is used to discharge the upper clear liquid of the inner cavity of the tank body (14), and the drainage assembly (3) is automatically closed when the upper clear liquid is less.

2. The sludge storage device for wastewater treatment according to claim 1, characterized in that: Two groups of mounting grooves (12) are symmetrically provided on the left and right sides of the inner wall of the pool body (14), a limiting groove (11) is provided at the front end of the inner cavity of the pool body (14), and a mud discharge pipe (15) is fixedly connected to the lower edge of the outer wall of the pool body (14), and the mud discharge pipe (15) is communicated with the rear part of the pool body (14).

3. The sludge storage device for wastewater treatment according to claim 2, characterized in that: The filter mud assembly (2) comprises a receiving plate (25), one side of the upper end of the receiving plate (25) is fixedly connected to a filter mud plate (22), both sides of the filter mud plate (22) are fixedly connected to mounting strips (23), the mounting strips (23) are slidably connected in the mounting groove (12), the front end of the receiving plate (25) is fixedly connected to a limit block (24), and the limit block (24) is slidably connected in the limit groove (11).

4. The sludge storage device for wastewater treatment according to claim 1, characterized in that: The drainage assembly (3) comprises a water inlet hopper (34), the lower end of which is fixedly connected to a drainage hose (31), the inner wall of which is fixedly connected to a filter plate (32), and the upper end of which is installed to a sealing cover (33).

5. The sludge storage device for wastewater treatment according to claim 4, characterized in that: The sealing cover (33) comprises a cover plate (332), a cavity (331) is provided inside the cover plate (332), a sealing ring (333) is fixedly connected to the lower end of the cover plate (332), a plurality of groups of elastic ropes (334) are fixedly connected to the lower end surface of the cover plate (332) at circumferential intervals, the elastic ropes (334) are installed in the inner area of ​​the sealing ring (333), and one end of the elastic rope (334) facing away from the cover plate (332) is fixedly connected to the upper end surface of the filter plate (32).

6. The sludge storage device for wastewater treatment according to claim 5, characterized in that: The sealing ring (333) is made of elastic material, and the outer wall of the sealing ring (333) is in close contact with the inner wall of the water inlet hopper (34).

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