A wing-type sludge discharge device and sludge discharge system for sludge discharge

Abstract

The present invention discloses a wing-type mud discharge device for sludge discharge, comprising a mud discharge pipe and an air jet pipeline arranged at the lower part of a water treatment sludge tank, the air jet pipeline is provided with an air jet hole for jetting mud at the bottom of the sludge tank, the mud discharge pipe is suspended horizontally at the bottom of the sludge tank, the rear end pipe mouth is closed, holes are arranged on both sides of the pipe wall, the holes are covered with anti-gas overflow wings, the anti-gas overflow wings are full-length, and the air jet pipeline is arranged below the anti-gas overflow wings. The present invention arranges full-length wings on both sides of the mud discharge pipe with holes, and arranges an air jet pipeline at the lower end of the wings to implement jet-type gas sweeping and washing of the mud layer at the bottom of the tank, and at the same time sucks the sludge, the suction distance is low, the mud suction surface is large, the air sweeping and suction are thorough, and the problem of odor pollution in water bodies is effectively solved and eliminated.

Description

Technical Field

[0001] The present invention relates to the field of sludge discharge from reaction tanks, sedimentation tanks, sand settling tanks and other sludge accumulation sections of water treatment for environmentally friendly water supply and drainage treatment, and more specifically, it relates to a wing-type sludge discharge device and a sludge discharge system for sludge discharge. Background Art

[0002] The sludge removal process is one of the important water treatment processes. Its main purpose is to cooperate with the sedimentation treatment process to promptly remove the sludge at the bottom of the water treatment structure, and avoid problems in the operation of the water treatment system caused by untimely removal of the sludge at the bottom of the pool.

[0003] Traditional mud discharge pipes cannot completely absorb the mud layer at the bottom of the pool or cannot completely absorb the mud layer at the bottom of the pool due to their small mud suction surface and high suction distance from the mud interface at the bottom of the pool, resulting in sludge accumulation at the bottom of the pool. In severe cases, water treatment facilities cannot operate normally or even become paralyzed due to sludge accumulation. In particular, sludge accumulation in water supply facilities (especially water plants) can easily lead to anaerobic odorization of sludge, which seriously affects the quality and quantity of effluent water and the hygiene and health of drinking water. A Chinese patent with publication number CN 103977607 A discloses an air lift mud discharge device, which has a mud suction hood on the mud accumulation layer and a mud lifting pipe above the mud suction hood. However, this type of mud discharge device has the disadvantages of narrow mud suction surface, high suction distance, scattered suction points, many components, complex installation and high cost. Summary of the invention

[0004] The object of the present invention is to provide a wing-type mud discharge device and a mud discharge system for sludge discharge, wherein full-length wings are arranged on both sides of the mud discharge pipe with holes, and jet pipelines are arranged at the lower ends of the full-length wings on both sides to implement jet-type gas sweeping and washing of the mud layer at the bottom of the pool, and at the same time suck out the sludge, which has the advantages of low suction distance, large mud suction surface, and thorough air sweeping and suction, can drain the mud at the bottom of the pool, effectively solve and eliminate the problem of odor pollution in water bodies, improve water quality and the taste of drinking water, and enhance the safety and health protection of drinking water for the people.

[0005] The invention discloses a wing-type sludge discharge device for sludge discharge, comprising a sludge discharge pipe and an air jet pipeline arranged at the lower part of a water treatment sludge tank, the air jet pipeline is provided with an air jet hole for jetting sludge at the bottom of the sludge tank, the sludge discharge pipe is suspended horizontally at the bottom of the sludge tank, the rear end pipe mouth is closed, holes are arranged on both sides of the pipe wall, the holes are covered with air overflow prevention wings, the air overflow prevention wings are full length, and the air jet pipeline is arranged below the air overflow prevention wings.

[0006] Preferably, a group of anti-air overflow fins are provided above the holes on both sides, one side of each group of anti-air overflow fins is connected to the wall of the mud discharge pipe, and the other side is suspended in the air, the suspended side is inclined downward, and the angle between it and the vertical axis of the mud discharge pipe is less than 90°.

[0007] Preferably, the air overflow prevention wings are symmetrically arranged along the axis of both sides of the mud discharge pipe.

[0008] Preferably, the jet pipeline is arranged axially along the anti-overflow wing and attached to the lower end surface of the anti-overflow wing, and the air holes are distributed axially along the jet pipeline, and the air holes are inclined downward and toward the closed space formed by the symmetrical anti-overflow wing.

[0009] Preferably, the opening ratio of the holes is ≤95%.

[0010] Preferably, the holes are distributed axially along the wall of the mud discharge pipe.

[0011] Preferably, the mud discharge pipe is installed on the pool bottom using an adjustable H-shaped bracket, which includes an adjusting clamp, a screw and a nut. The adjusting clamp sleeve is arranged on the mud discharge pipe, one end of the screw is fixed to the pool bottom, and the other end passes through the through hole of the adjusting clamp and is fixed by the nut.

[0012] The invention also discloses a mud discharge system. The front end of the mud discharge pipe extends out of the wall of the pool body and is connected to the mud discharge valve. At this time, the sludge in the mud discharge pipe is discharged through the mud discharge valve.

[0013] Alternatively, a mud discharge system, the front end of the mud discharge pipe is connected to the conveying trough through a mud lifting pipe, the mud lifting pipe is placed vertically, and the sludge in the mud discharge pipe is discharged through the mud lifting pipe and the conveying trough in sequence. At this time, no hole is opened in the wall.

[0014] The working process of the present invention is as follows: the gas ejected from the jet pipeline impacts and stirs the sludge layer, causing the sludge layer to float and become soft and easy to absorb; at the same time, the pressure difference is used to make the soft and easy to absorb sludge automatically enter the sludge discharge pipe from the holes under the action of gas stirring, and finally enter the conveying trough through the sludge discharge valve or sludge lifting pipe outside the wall for discharge.

[0015] The beneficial effects of the present invention are as follows: the mud discharge pipe is placed horizontally at the bottom of the sedimentation tank to reduce the suction distance between the hole and the mud interface at the bottom of the tank, while increasing the mud suction area, so that the mud accumulated at the bottom of the tank can be completely discharged; the anti-gas overflow wing is arranged above the jet pipeline, which not only prevents the bubbles from rising and impacting the suspended matter in the water treatment tank and floating up to destroy the normal work of the water purification treatment, but also has a guiding effect, so that the gas flows in the space below the anti-gas overflow wing to form the required pressure difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the mud discharge device structure.

[0017] Figure 2 This is a schematic diagram of the bottom structure of the mud discharge device.

[0018] Figure 3 It is a cross-sectional schematic diagram of the mud discharge pipe device.

[0019] Figure 4 This is the first embodiment of the mud discharge system.

[0020] Figure 5 This is the second embodiment of the mud discharge system.

[0021] Markings in the figure: sedimentation tank 1, mud discharge pipe 2, hole 21, air jet pipeline 3, air jet hole 31, anti-air overflow wing 4, adjustable H-shaped bracket 5, adjusting clamp 51, screw 52, ​​nut 53, mud discharge valve 6, mud lifting pipe 7, conveying trough 8. DETAILED DESCRIPTION

[0022] The following further describes the structures involved in the present invention or the technical terms used in these descriptions. These descriptions are only used as examples to illustrate how the methods of the present invention are implemented, and cannot constitute any limitation to the present invention.

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the present invention, unless otherwise clearly specified and limited, "connection", "fixation" and the like should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-3 As shown, a wing-type sludge discharge device for sludge discharge comprises a sludge discharge pipe 2 and an air jet pipeline 3 arranged at the lower part of a water treatment sludge tank 1. The air jet pipeline 3 is provided with an air jet hole 31 for jetting the sludge at the bottom of the sludge tank. The sludge discharge pipe 2 is horizontally suspended at the bottom of the sludge tank 1, with a closed rear end pipe opening, holes 21 are arranged on both sides of the pipe wall, and the holes 21 are covered with anti-overflow wings 4, which are continuous, and the air jet pipeline 3 is arranged below the anti-overflow wings 4.

[0026] The gas injected by the jet pipeline 3 is given a certain air impact pressure, and the huge impact force stirs the sludge layer, making the sludge layer soft and easy to absorb. At the same time, the pressure difference is used to make the soft and easy to absorb sludge automatically enter the mud discharge pipe 2 from the hole 21 under the joint action of the water head pressure and the gas impact force, so as to achieve the purpose of mud discharge. Among them, the gas can be connected to the pressure gas source of the water treatment plant or supplied by the air pump. There are slopes on both sides of the pool, and the mud discharge pipe 2 is located in the recess formed by the slopes on both sides. In this way, the sludge slides down the slope and accumulates in the recess, which is easy to concentrate the mud. The mud discharge pipe 2 is placed horizontally at the bottom of the sludge pool to reduce the suction distance of the hole 21 from the mud interface at the bottom of the pool, and at the same time increase the mud suction area, so that the mud accumulated at the bottom of the pool can be completely discharged. The anti-gas overflow wing 4 is arranged above the jet pipeline 3, which not only prevents the bubbles from floating up and impacting the suspended matter in the water treatment pool and destroying the normal operation of the water purification treatment, but also has a guiding effect, so that the gas flows in the space below the anti-gas overflow wing 4 to form the required pressure difference. The anti-overflow fins 4 are laid along the axial length of the mud discharge pipe 2. The distance between the mud discharge pipe 2 and the bottom of the pool can be determined according to the amount of mud discharge, but the mud discharge pipe 2 should be located above the mud accumulation interface and close to the mud accumulation interface, so that the suction distance is minimized and the mud suction efficiency is high, thereby effectively sucking out the sludge.

[0027] In some embodiments, Figure 2 As shown, a group of anti-gas overflow flaps 4 are respectively arranged above the holes 21 on both sides, one side of each group of anti-gas overflow flaps 4 is connected to the wall of the mud discharge pipe, and the other side is suspended, and the suspended side is tilted downward, and the angle between the suspended side and the vertical axis of the mud discharge pipe 2 is 45°. The two groups of anti-gas overflow flaps 4 are tilted downward to form a closed structure, which helps to prevent gas overflow. The material of the anti-gas overflow flaps 4 is not limited, for example, metal, plastic, etc. If it is metal, the anti-gas overflow flaps 4 are welded to the wall of the mud discharge pipe. The suspended width of the anti-gas overflow flaps 4 is appropriate, which should not be too wide to avoid causing the suction distance to be too high, and should not be too narrow to avoid causing gas overflow.

[0028] In some embodiments, Figure 3 As shown, the anti-gas overflow fins 4 are symmetrically arranged along the axis of both sides of the mud discharge pipe 2. The symmetrical arrangement of the two sets of anti-gas overflow fins 4 ensures that the mud on both sides of the mud discharge pipe 2 is evenly sucked.

[0029] In some embodiments, Figure 2As shown, the jet pipeline 3 is arranged axially along the anti-gas overflow flap 4 and attached to the lower end surface of the anti-gas overflow flap 4, and the air holes 31 are distributed axially along the jet pipeline 3, and the air holes 31 are obliquely downward and toward the closed space formed by the symmetrical anti-gas overflow flaps 4. If it is a flexible pipeline, the jet pipeline 3 will generate a reverse thrust when conveying gas, and the anti-gas overflow flap 4 can stabilize the jet pipeline 3. The jet pipeline 3 is provided with a plurality of air holes 31 axially to ensure sufficient output air flow, and the number of air holes 31 is not limited. The air holes 31 are obliquely downward and toward the closed space formed by the two groups of anti-gas overflow flaps 4, so that the dispersed sludge is filled in the closed space formed by the two groups of anti-gas overflow flaps 4, thereby effectively sucking the sludge.

[0030] In some embodiments, the opening rate of the hole 21 is 60%. Holes with a certain opening rate can increase the amount of mud suction.

[0031] In some embodiments, Figure 2 As shown, the holes 21 are distributed axially along the wall of the mud discharge pipe 2 to increase the mud suction amount. The holes 21 are arranged close to the lower part of the wall, so as to be closer to the mud accumulation interface, which is conducive to reducing the suction distance and increasing the mud suction amount.

[0032] In some embodiments, Figure 3 As shown, the mud discharge pipe 2 is installed on the bottom of the pool using an adjustable H-shaped bracket 5. The adjustable H-shaped bracket 5 includes an adjusting clamp 51, a screw 52 and a nut 53. The adjusting clamp 51 is sleeved on the mud discharge pipe 1. One end of the screw 52 is fixed to the bottom of the pool, and the other end passes through the hole of the adjusting clamp 51 and is fixed by the nut 53. The height is adjustable. The use of the adjustable H-shaped bracket 5 not only allows the mud discharge pipe 2 to be firmly installed on the bottom of the pool, but also allows the height to be adjusted. Of course, the installation of the mud discharge pipe 1 is not limited to the above-mentioned adjustable H-shaped bracket 5. The adjustable H-shaped bracket 5 is installed on both sides of the axial direction of the mud discharge pipe 2 to avoid interference with the installation of the anti-air overflow wing 4.

[0033] The present invention also discloses a mud discharge system. In the first embodiment, the front end of the mud discharge pipe 2 extends out of the wall of the pool body and is connected to the mud discharge valve 6. At this time, the mud in the mud discharge pipe 2 is discharged through the mud discharge valve 6. Figure 4 .

[0034] Alternatively, the second embodiment: the front end of the mud discharge pipe 2 is connected to the conveying trough 8 through the mud lifting pipe 7, the mud lifting pipe 7 is placed vertically, and the sludge in the mud discharge pipe 2 is discharged through the mud lifting pipe 7 and the conveying trough 8 in sequence. At this time, the wall is not opened. Figure 5 .

[0035] The working process of the present invention is as follows: the pressure gas source of the water treatment plant is connected or the air pump supplies gas, and the gas is ejected through the jet pipeline 3 to impact and stir the sludge layer, so that the sludge layer floats and becomes soft and easy to absorb. At the same time, the pressure difference is used to make the soft and easy to absorb sludge automatically enter the sludge discharge pipe 2 from the hole 21 under the action of gas stirring, and finally enter the conveying trough 8 through the sludge discharge valve 6 or the sludge lifting pipe 7 outside the wall for discharge.

[0036] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A wing-type sludge discharge device for sludge discharge, comprising a sludge discharge pipe and an air jet pipeline arranged at the lower part of a water treatment sludge tank, the air jet pipeline having an air jet hole for jetting the sludge at the bottom of the sludge tank, characterized in that: The mud discharge pipe is suspended horizontally at the bottom of the mud settling tank, with the rear end of the pipe mouth closed. Holes are arranged on both sides of the pipe wall, and the holes are covered with anti-air overflow wings. The anti-air overflow wings are full-length, and the air jet pipeline is arranged below the anti-air overflow wings. A group of anti-air overflow wings are arranged above the holes on both sides. One side of each group of anti-air overflow wings is connected to the mud discharge pipe wall, and the other side is suspended. The suspended side is inclined downward, and the angle between the suspended side and the vertical axis of the mud discharge pipe is less than 90°. The air jet pipeline is arranged along the axial direction of the anti-air overflow wing and attached to the lower end surface of the anti-air overflow wing. The air emission holes are distributed along the axial direction of the air jet pipeline, and the air emission holes are inclined downward and face the closed space formed by the symmetrical anti-air overflow wings. The opening rate of the holes is ≤95%.

2. A wing-type sludge discharge device for sludge discharge according to claim 1, characterized in that: The air overflow prevention wings are symmetrically arranged along the axis of both sides of the mud discharge pipe.

3. A wing-type sludge discharge device for sludge discharge according to claim 1, characterized in that: The holes are distributed axially along the wall of the mud discharge pipe.

4. A wing-type sludge discharge device for sludge discharge as claimed in claim 1, characterized in that: The mud discharge pipe is installed on the bottom of the pool with an adjustable H-shaped bracket. The adjustable H-shaped bracket includes an adjusting clamp, a screw and a nut. The adjusting clamp sleeve is arranged on the mud discharge pipe. One end of the screw is fixed to the bottom of the pool, and the other end passes through the hole of the adjusting clamp and is fixed by the nut.

5. A mud discharge system comprising the wing-type mud discharge device according to any one of claims 1 to 4, characterized in that: The front end of the mud discharge pipe extends out of the wall of the pool body to connect to the mud discharge valve, or the front end of the mud discharge pipe is connected to the conveying trough through the mud lifting pipe, and the mud lifting pipe is placed vertically.

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