Multi-mud-bucket sedimentation tank based on high-concentration organic wastewater integrated treatment equipment

Abstract

The utility model discloses a multi-mud bucket sedimentation tank based on high-concentration organic wastewater integrated treatment equipment, a plurality of mud buckets are arranged at the bottom of a sedimentation tank main body, mud outlet pipelines are arranged at the bottoms of the mud buckets, and each mud bucket is circularly controlled to discharge mud through a second electric control device. A first electric control device is arranged between the water inlet pipeline and the sedimentation tank main body, and a third electric control device is arranged between the sludge outlet pipeline and the sludge return pipeline as well as between the sludge outlet pipeline and the sludge discharge pipeline; the opening degree of the electric valve is adjusted through the difference value of the two flow meters, so that flow control over the sedimentation tank body is achieved, the purposes of automatically discharging water and adjusting the water outlet amount and the sludge discharging amount are achieved, the automation degree of operation of the sedimentation tank is improved, the labor amount of operators is reduced, the labor intensity is relieved, the number of field operators is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a multi-mud hopper sedimentation tank based on high-concentration organic wastewater integrated treatment equipment. Background Art

[0002] In recent years, the country has continuously improved the wastewater treatment standards, and the discharge of wastewater has become increasingly stringent; the A-stage treatment process based on the AB method is used to treat high-concentration organic wastewater, which mainly includes biological carbon removal aeration tanks and sedimentation tanks; due to the high organic matter content in the treated wastewater, microorganisms quickly utilize part of the organic matter while adsorbing a large amount of large-molecule organic matter, and the microorganisms grow and proliferate rapidly; the high-concentration sludge formed needs to be precipitated and separated in the sedimentation tank, and the separated supernatant is discharged from the system through the overflow weir. The sludge that is further concentrated and precipitated in the sludge hopper is returned to the front end of the system through the sludge reflux, and part is discharged from the system to remove the organic pollutants therein.

[0003] Sedimentation tanks with sludge concentrations exceeding 10,000 mg / L in integrated treatment equipment must consider the height limitations of the entire equipment and generally adopt a multi-hopper design. During actual operation, factors such as the differences in sludge concentration in each hopper, the distance from the sludge return pump, and the length of the sludge discharge pipeline make it impossible to ensure uniform sludge discharge from each hopper. Some hoppers may even experience extremely high sludge concentrations and poor fluidity, leading to blockage and sludge discharge. Sludge hoppers that remain undischarged for extended periods of time can cause uneven sludge levels in the sedimentation tank. Anaerobic gas generation can also cause sludge to float, affecting effluent quality and ultimately impacting the operation of the entire biochemical system.

[0004] Therefore, whether the sedimentation tank can normally take in water, discharge water and discharge sludge is a crucial control link to ensure that the entire system can efficiently treat high-concentration organic wastewater. Utility Model Content

[0005] In response to the technical defects in the background technology, the present invention proposes a multi-mud hopper sedimentation tank based on an integrated high-concentration organic wastewater treatment device, which solves the above technical problems and meets actual needs. The specific technical solution is as follows:

[0006] A multi-mud hopper sedimentation tank based on high-concentration organic wastewater integrated treatment equipment includes a sedimentation tank main body, a plurality of mud hoppers are provided near the bottom of the sedimentation tank main body, a water inlet pipe is provided on the side near the top of the sedimentation tank main body, a first electric control device is provided between the water inlet pipe and the sedimentation tank main body, an overflow weir is provided on the other side near the top of the sedimentation tank main body, a mud discharge pipe is provided at the bottom of the mud hopper, and the mud discharge pipe is respectively connected to a sludge return pipe and a sludge discharge pipe, a second electric control device is provided at the end of the mud discharge pipe connected to the mud hopper, and a third electric control device is provided between the mud discharge pipe and the sludge return pipe and the sludge discharge pipe.

[0007] As an improvement to the above solution, the sedimentation tank body is provided with four mud hoppers, which are arranged in an array and fit together at the bottom of the sedimentation tank body.

[0008] As an improvement of the above solution, the mud bucket is in the shape of an inverted four-cone, which is formed by four slopes, and a mud outlet pipe is connected to the position near the bottom of the slope.

[0009] As an improvement of the above scheme, the first electric control device includes a water inlet pump, a water inlet flow meter and a water inlet electric valve connected to the water inlet pipe, and the water inlet pump, water inlet flow meter and the water inlet electric valve are arranged in sequence along the water flow direction of the water inlet pipe.

[0010] As an improvement of the above scheme, the water inlet pipe includes a first water inlet pipe arranged outside the sedimentation tank body and a second water inlet pipe arranged inside the sedimentation tank body. The second water inlet pipe extends horizontally toward the sedimentation tank body and is bent at a right angle and vertically arranged above the middle part of the sedimentation tank body.

[0011] As an improvement of the above scheme, the second electric control device includes a mud discharge branch pipe and a mud discharge electric valve arranged on the mud discharge branch pipe. The mud discharge branch pipe and the mud discharge electric valve match the number of the mud bucket. One end of the mud discharge branch pipe is connected to the bottom of the mud bucket, and the other end is connected to the mud discharge pipe.

[0012] As an improvement of the above scheme, the third electric control device includes a sludge return pump, a water outlet flow meter, a return electric valve and a mud discharge electric valve. The sludge return pump and the water outlet flow meter are arranged in sequence along the mud and water flow direction of the mud outlet pipe. The return electric valve is arranged on the sludge return pipe connected to the mud outlet pipe, and the mud discharge electric valve is arranged on the sludge discharge pipe connected to the mud outlet pipe.

[0013] The beneficial effects of the present invention are:

[0014] A plurality of mud hoppers are provided at the bottom of the sedimentation tank body, and mud outlet branches are installed at the bottom of each mud hopper. The mud outlet of each mud hopper is circulated and controlled by the second electric control device to prevent the concentrated sludge in individual mud hoppers from having extremely high concentration and poor fluidity, thereby causing blockage.

[0015] The sedimentation tank body controls the water inlet of the sedimentation tank body through the first electric control device, and controls the water outlet and mud discharge of the sedimentation tank body through the third electric control device. The water inlet flow and sludge return flow of the sedimentation tank body are collected by installing a flow meter, and the opening of the electric valve is adjusted by the difference between the two flow meters to realize flow control of the sedimentation tank body, so as to achieve the purpose of automatic water discharge and adjustment of water outlet and mud discharge, improve the degree of automation of sedimentation tank operation, reduce the workload of operators, reduce labor intensity, and thus reduce the number of on-site operators and reduce operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the main structure of the sedimentation tank of this utility model Figure 1 .

[0017] Figure 2 Schematic diagram of the main structure of the sedimentation tank of this utility model Figure 2 .

[0018] Among them: sedimentation tank main body 1, mud hopper 2, slope 201, water inlet pipe 3, first water inlet pipe 301, second water inlet pipe 302, overflow weir 4, mud outlet pipe 5, sludge return pipe 6, sludge discharge pipe 7, water inlet pump 8, water inlet flow meter 9, water inlet electric valve 10, mud discharge electric valve 11, mud discharge branch pipe 12, sludge return pump 13, water outlet flow meter 14, return electric valve 15, mud discharge electric valve 16. DETAILED DESCRIPTION

[0019] The following describes the implementation of the present invention in conjunction with the accompanying drawings and relevant embodiments. The implementation of the present invention is not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0020] A multi-mud hopper sedimentation tank based on an integrated treatment device for high-concentration organic wastewater includes a sedimentation tank main body 1, a plurality of mud hoppers 2 are provided near the bottom of the sedimentation tank main body 1, a water inlet pipe 3 is provided on the side near the top of the sedimentation tank main body 1, a first electric control device is provided between the water inlet pipe 3 and the sedimentation tank main body 1, an overflow weir 4 is provided on the other side near the top of the sedimentation tank main body 1, a mud discharge pipe 5 is provided at the bottom of the mud hopper 2, the mud discharge pipe 5 is respectively connected to a sludge return pipe 6 and a sludge discharge pipe 7, a second electric control device is provided at the end of the mud discharge pipe 5 connected to the mud hopper 2, and a third electric control device is provided between the mud discharge pipe 5 and the sludge return pipe 6 and the sludge discharge pipe 7.

[0021] In the structure of the sedimentation tank body 1 of the utility model, a water inlet pipe 3 connected to the carbon removal aeration tank is provided on one side of the sedimentation tank body 1, and an overflow weir 4 is provided on the other side. Four mud hoppers 2 are provided at the bottom of the sedimentation tank body 1, and a mud discharge pipe 5 is provided at the bottom of the mud hopper 2. After being treated in the carbon removal aeration tank, the muddy water enters the sedimentation tank body 1 through the water inlet pipe 3. The sludge in the muddy water settles in the mud hopper 2 and is discharged or refluxed through the mud discharge pipe 5. The clear water after sedimentation flows out through the overflow weir 4.

[0022] It should be noted that a first electric control device is provided on the water inlet pipe 3 connecting the sedimentation tank main body 1 and the carbon removal aeration tank. The first electric control device includes a water inlet pump 8, a water inlet flow meter 9 and a water inlet electric valve 10 connected to the water inlet pipe 3. The water inlet pump 8, the water inlet flow meter 9 and the water inlet electric valve 10 are arranged in sequence along the water flow direction of the water inlet pipe 3. The water inlet pump 8 is used to extract the muddy water in the carbon removal aeration tank through the water inlet flow meter 9 into the sedimentation tank main body 1. The water inlet electric valve 10 controls the opening and closing of the water inlet pipe 3. The water inlet flow meter 9 records the flow of the water inlet pipe 3 and calculates the muddy water flow entering the sedimentation tank main body 1 according to the opening time of the water inlet electric valve 10.

[0023] It should be noted that a third electric control device connected to the mud hopper 2 is provided at the bottom of the sedimentation tank body 1. The third electric control device includes a sludge return pump 13, an outlet flow meter 14, a return electric valve 15, and a mud discharge electric valve 16. The sludge return pump 13 and the outlet flow meter 14 are sequentially arranged along the mud and water flow direction of the mud discharge pipe 5. The return electric valve 15 is arranged on the sludge return pipe 6 connected to the mud discharge pipe 5, and the mud discharge electric valve 16 is arranged on the sludge discharge pipe 7 connected to the mud discharge pipe 5.

[0024] Specifically, the sludge return pump 13 is used to extract the sludge deposited at the bottom of the sludge hopper 2 and pump a mixture of the settled sludge and a small amount of water into the sludge discharge pipe 5. The return electric valve 15 and the sludge discharge electric valve 16 control the return or discharge of the extracted sludge. The water outlet flow meter 14 records the flow of the sludge discharge pipe 5 and calculates the sludge and water flow discharged from the sedimentation tank main body 1 according to the opening time of the return electric valve 15 and the sludge discharge electric valve 16.

[0025] Furthermore, the water inlet flow rate of the sedimentation tank main body 1 can be obtained by controlling the opening time of the water inlet electric valve 10, and the water outlet flow rate of the sedimentation tank main body 1 can be obtained by controlling the opening time of the return electric valve 15 and the mud discharge electric valve 16. The flow control of the sedimentation tank main body 1 is realized by adjusting the opening of the electric valve through the difference between the two flow meters, so as to achieve the purpose of automatic water discharge and adjustment of water outlet and mud discharge.

[0026] Furthermore, in the above scheme, the water inlet pipe 3 includes a first water inlet pipe 301 arranged outside the sedimentation tank body 1 and a second water inlet pipe 302 arranged inside the sedimentation tank body 1. The second water inlet pipe 302 extends horizontally toward the sedimentation tank body 1 and is bent at a right angle and vertically arranged above the middle of the sedimentation tank body 1. The water inlet pump 8, the water inlet flowmeter 9 and the water inlet electric valve 10 are arranged on the first water inlet pipe 301;

[0027] Furthermore, in the above scheme, the number of the mud hoppers 2 is four, which are arranged in an array and fit together at the bottom of the sedimentation tank body 1. The outlet of the second water inlet pipe 302 is aligned with the intersection of the mud hoppers 2 arranged in the array, so as to reduce the excessive accumulation of sludge in one of the mud hoppers 2. The mud hopper 2 is in the shape of an inverted four-cone, which is formed by four slopes 201. When the sludge settles, it slides along the slope 201 and is deposited at the bottom of the mud hopper 2, avoiding local accumulation of soil. A mud outlet pipe 5 is connected to the position near the bottom of the slope 201.

[0028] Furthermore, in the above scheme, the second electric control device includes a mud discharge branch pipe 12 and a mud discharge electric valve 11 arranged on the mud discharge branch pipe 12. The mud discharge branch pipe 12 and the mud discharge electric valve 11 match the number of the mud bucket 2. One end of the mud discharge branch pipe 12 is connected to the bottom of the mud bucket 2, and the other end is connected to the mud discharge pipe 5.

[0029] It should be noted that a mud discharge branch pipe 12 is connected to the bottom of each mud hopper 2, and the opening and closing of the mud discharge branch pipe 12 is controlled by the mud discharge electric valve 11. The mud discharge is cyclically controlled by the second electric control device to control the mud discharge of the mud discharge electric valve 11 corresponding to each mud hopper 2 to prevent the situation where the concentration of sludge concentrated and precipitated in individual mud hoppers 2 is extremely high, affecting the sedimentation effect and the water quality of the effluent, so as to achieve the goal of uniform mud discharge.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A multi-mud hopper sedimentation tank based on an integrated high-concentration organic wastewater treatment device, characterized in that: The invention comprises a sedimentation tank body (1), wherein a plurality of mud hoppers (2) are provided near the bottom of the sedimentation tank body (1), a water inlet pipe (3) is provided on one side near the top of the sedimentation tank body (1), a first electric control device is provided between the water inlet pipe (3) and the sedimentation tank body (1), an overflow weir (4) is provided on the other side near the top of the sedimentation tank body (1), a mud discharge pipe (5) is provided at the bottom of the mud hopper (2), the mud discharge pipe (5) is connected to a sludge return pipe (6) and a sludge discharge pipe (7), a second electric control device is provided at one end of the mud discharge pipe (5) connected to the mud hopper (2), and a third electric control device is provided between the mud discharge pipe (5) and the sludge return pipe (6) and the sludge discharge pipe (7).

2. The multi-mud hopper sedimentation tank based on the integrated high-concentration organic wastewater treatment equipment according to claim 1 is characterized in that: The sedimentation tank body (1) is provided with four mud hoppers (2), and the mud hoppers (2) are arranged in an array and are arranged in close contact with each other at the bottom of the sedimentation tank body (1).

3. The multi-mud hopper sedimentation tank based on the integrated high-concentration organic wastewater treatment equipment according to claim 1 is characterized in that: The mud bucket (2) is in the shape of an inverted four-pole cone, formed by four slopes (201), and a mud outlet pipe (5) is connected to the position near the bottom of the slope (201).

4. The multi-mud hopper sedimentation tank based on the integrated high-concentration organic wastewater treatment equipment according to claim 1 is characterized in that: The first electric control device comprises a water inlet pump (8), a water inlet flow meter (9), and a water inlet electric valve (10) connected to the water inlet pipe (3); the water inlet pump (8), the water inlet flow meter (9), and the water inlet electric valve (10) are arranged in sequence along the water flow direction of the water inlet pipe (3).

5. The multi-mud hopper sedimentation tank based on the integrated high-concentration organic wastewater treatment equipment according to claim 1 is characterized in that: The water inlet pipe (3) comprises a first water inlet pipe (301) arranged outside the sedimentation tank body (1) and a second water inlet pipe (302) arranged inside the sedimentation tank body (1); the second water inlet pipe (302) extends horizontally toward the inside of the sedimentation tank body (1) and is bent at a right angle and vertically arranged above the middle of the sedimentation tank body (1).

6. The multi-mud hopper sedimentation tank based on the integrated high-concentration organic wastewater treatment equipment according to claim 1 is characterized in that: The second electric control device comprises a mud discharge branch pipe (12) and a mud discharge electric valve (11) arranged on the mud discharge branch pipe (12), wherein the number of the mud discharge branch pipes (12) and the mud discharge electric valve (11) matches the number of the mud buckets (2), and one end of the mud discharge branch pipe (12) is connected to the bottom of the mud bucket (2), and the other end is connected to the mud discharge pipe (5).

7. The multi-mud hopper sedimentation tank based on the integrated high-concentration organic wastewater treatment equipment according to claim 1 is characterized in that: The third electric control device comprises a sludge return pump (13), a water outlet flow meter (14), a return electric valve (15) and a sludge discharge electric valve (16); the sludge return pump (13) and the water outlet flow meter (14) are sequentially arranged along the mud and water flow direction of the sludge discharge pipe (5); the return electric valve (15) is arranged on the sludge return pipe (6) connected to the sludge discharge pipe (5); and the sludge discharge electric valve (16) is arranged on the sludge discharge pipe (7) connected to the sludge discharge pipe (5).

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