CN101259344A - Sewage pretreatment multifunctional solid-liquid separator - Google Patents

Abstract

A multifunctional solid-liquid separator for sewage pretreatment, mainly composed of a retarder box (1), an intercepting net (2), a dirt receiving bucket (3), a frame structure (4), a water inlet pipe (5) and a mud discharge pipe ( 6) composition, wherein the retarder box (1) is arranged inside the intercepting net (2), and the dirt receiving bucket (3) is then arranged below the two, the top of the retarder box (1) has no cover, and the bottom of the box ( 11) A part is that the back cover (14) is separated from the dirt receiving bucket (3), and the other part has a flushing port (12) to communicate with the dirt receiving bucket (3). The slow-speed tank (1) will make the incoming water form a discontinuous fluid with a certain splash velocity and a gently descending fluid. This flow interaction will separate the lighter hair and heavier solids from the sewage, and finally Discharge from the dirt hopper. The invention has the advantages of simple structure, high efficiency, low manufacturing cost, and easy maintenance and repair.

Description

Sewage pretreatment multifunctional solid-liquid separator

technical field

The invention relates to a sewage treatment device, in particular to a solid-liquid separator in the sewage treatment system.

Background technique

At present, in the process of sewage pretreatment, hair collectors, grilles and sedimentation tanks are the most common and most suitable conventional solid-liquid separation units, which play an important role in sewage treatment and environmental purification. However, in the actual application process, there are inevitably problems of one kind or another. The hair collector is mostly used in the pretreatment unit of domestic sewage and bathing wastewater, but it must be manually disassembled and cleaned, and the cleaning interval is generally 2-3 days or even shorter. The basket-type grille (network separation) needs to be cleaned manually on a regular basis, usually 3-5 days, and the cleaning operation is troublesome, especially the organic pollutants on the screen surface must be cleaned with special tools, and it is difficult to completely remove them. Basket-type The screen surface of the grid (network) needs to be replaced every six months, and the maintenance cost is high. Although the mechanical grille does not need to be cleaned manually, the mechanical failure rate is high after long-term use. The minimum distance between the mechanical fine grilles is 2-3mm, and the removal effect is far from ideal. However, the sedimentation tank has a large volume and occupies a large area, and it is inconvenient and unclean to discharge mud. The efficiency of solid-liquid separation is not high, and the function is single, so it is difficult to remove hair. Therefore, it is necessary to design a device with simple structure and high decontamination efficiency, which can give full play to the potential of sewage itself, self-clean and efficiently remove solids in sewage. The design and manufacture of this solid-liquid separator is very necessary.

Contents of the invention

According to the background technology, the purpose of the present invention is to provide a novel sewage pretreatment multifunctional solid-liquid separator mainly composed of a retarder box, an interception net and a dirt bucket, wherein the retarder is arranged inside the interception net, and The dirt receiving bucket is set under the two. The top of the slow tank is not covered to receive sewage, the bottom of the tank is partially sealed, and the other part is opened as a flushing outlet. The mud pipe, this structural form can make the sewage form a discontinuous fluid with a splashing flow rate and a fluid with a gently dispersed flow in the solid-liquid separator. The interaction between the two realizes the separation of lighter hair and heavier solid particles. effect.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

A multifunctional solid-liquid separator for sewage pretreatment, mainly composed of a retarder box (1), an intercepting net (2), a dirt receiving bucket (3), a frame structure (4), a water inlet pipe (5) and a mud discharge pipe ( 6) form, wherein: retarder box (1) is made up of box wall (13) and square box bottom (11) surrounded by four rectangular flat plates, wherein the case top of retarder box (1) does not have sealing cover, and the box bottom ( 11) Part of the bottom cover (14) is separated from the dirt bucket (3), and the other part has a flushing port (12) connected to the space of the dirt bucket (3). The overall structure of the retarder box (1) The middle part of the upper part of the dirt bucket (3) is connected through the frame structure (4); the interception net (2) is surrounded by four rectangular mesh walls (21), and the dirt bucket (3) is connected with the frame structure (4). ) is connected to the surrounding structure of the upper part; below the structure of the retarder box (1) and the interception net (2), a conical bucket-shaped dirt receiving bucket (3) is formed by five trapezoidal flat plates, and the retarder box (1) and The space between the intercepting nets (2) communicates with the space of the dirt receiving bucket (3), a water inlet pipe (5) is arranged above the slow speed box (1), and a mud discharge is arranged at the bottom of the dirt receiving bucket (3) Pipe (6), and a solenoid valve (61) is arranged on the pipeline.

Owing to adopting this technical scheme, the present invention has following advantage and effect:

1. The process of the present invention is simple, easy to clean, no need to manually disassemble and clean, only need to regularly open the mud discharge valve to discharge mud, because the efficiency of removing dirt is high, so that the post-processing workload is reduced, for example, the hair filter can be used The amount of debris is very small, and the cleaning interval is extended from the original 2-3 days to 25-30 days.

2. Due to the high efficiency of removing impurities in the present invention, there are very few organic particles entering the biological oxidation tank, which protects the operation safety of subsequent equipment and is not easy to be blocked; due to the low content of organic matter entering the biological oxidation tank, the sludge produced is also very small, and the effluent Filtering through the sand tank can make the water clear and save the sedimentation tank in the system.

3. The present invention is simple in structure, low in cost, and easy to use, maintain and overhaul.

Description of drawings

Fig. 1 is the three-dimensional schematic view of the overall structure of the present invention

Fig. 2 is a schematic top view of the overall structure of the present invention

Fig. 3 is the A-A sectional schematic diagram of Fig. 2 of the present invention

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, a multifunctional solid-liquid separator for sewage pretreatment is mainly composed of a slow speed box 1, an intercepting net 2, a dirt receiving bucket 3, a frame structure 4, a water inlet pipe 5 and a sludge discharge Tube 6, wherein: the retarder tank 1 is composed of a box wall 13 surrounded by four rectangular flat plates and a square tank bottom 11, wherein the top of the retarder tank 1 has no cover, and a part of the tank bottom 11 is a bottom cover 14 and a dirt bucket The three phases are separated, and the other part has a flushing port 12 to communicate with the space of the dirt bucket 3. The overall structure of the retarder box 1 is connected to the middle part of the upper part of the dirt bucket 3 through the frame structure 4; it consists of four rectangular The net wall 21 encircles the interception net 2, and is connected with the surrounding structure on the upper part of the dirt bucket 3 through the frame structure 4; under the structure of the retarder box 1 and the interception net 2, a cone-shaped bucket-shaped structure is formed by five trapezoidal flat plates. Dirt storage hopper 3, the space between the retarder box 1 and the interception net 2 communicates with the space of the dirt receiver 3, a water inlet pipe 5 is arranged above the retarder box 1, and a mud discharge is arranged at the bottom of the dirt receiver 3 Pipe 6, and a solenoid valve 61 is arranged on the pipe.

It is also known that the sewage drawn from the water inlet pipe 5 at the top of the retarder case 1 rushes directly to the retarder case 1, since the bottom 11 of the retarder case 1 is composed of the flushing port 12 and the bottom cover 14, the incoming water flows through the bottom 11 of the case , so that the fluid passing through the flushing port 12 forms a discontinuous flow with a certain speed and a gently descending flow, and the gently descending fluid forms a liquid level in real time, and the fluid with a certain flow rate will hit the liquid level to achieve a splashing form , the water flow will disperse and flow to the net wall 21 around the intercepting net 2 naturally, and the lighter solids such as hair are hung on the net wall 21, and the lighter solids such as hair will slowly fall due to the effect of water flow and gravity. Sliding to the bucket wall 31 of the dirt bucket 3, the relatively gentle flow from the flushing outlet 12 will directly settle into the dirt bucket 3 with heavier particles and other solids, and finally the hair and particles in the dirt bucket 3 , miscellaneous and other solids are regularly discharged through the mud discharge pipe 6.

Claims (1)

1. A multifunctional solid-liquid separator for sewage pretreatment, mainly composed of a retarder box (1), an intercepting net (2), a dirt receiving bucket (3), a frame structure (4), a water inlet pipe (5) and a sludge discharge tube (6), characterized in that: the retarder box (1) is composed of a box wall (13) surrounded by four rectangular flat plates and a square box bottom (11), wherein the roof of the retarder box (1) is not sealed Cover, a part of the bottom of the box (11) is that the bottom cover (14) is separated from the dirt bucket (3), and the other part has a flushing port (12) that communicates with the space of the dirt bucket (3), and its retarder box (1 ) is connected to the upper middle part of the dirt receiving bucket (3) through a frame structure (4); the interception net (2) is surrounded by four rectangular mesh walls (21), and the frame structure (4) and the receiving The surrounding structure on the upper part of the dirt bucket (3) is connected; under the structure of the retarder box (1) and the interception net (2), there is a conical bucket-shaped dirt receiving bucket (3) composed of five trapezoidal flat plates, and the retarder box The space between (1) and the interception net (2) communicates with the space of the dirt receiving bucket (3), and a water inlet pipe (5) is arranged above the retarder box (1), and at the bottom of the dirt receiving bucket (3) A mud discharge pipe (6) is provided, and a solenoid valve (61) is provided on the pipeline.

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