CN219117318U

CN219117318U - High-pressure diaphragm type efficient sludge concentration device

Info

Publication number: CN219117318U
Application number: CN202223007620.7U
Authority: CN
Inventors: 崔峰; 秦臻
Original assignee: Jilin Zengjie Environmental Protection Technology Co ltd
Current assignee: Jilin Zengjie Environmental Protection Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-06-02
Anticipated expiration: 2032-11-11

Abstract

The utility model belongs to the technical field of sludge dewatering, and particularly relates to a high-pressure diaphragm type efficient sludge concentrating device, which comprises: the device comprises a concrete tank body, a conditioning tank, a maintenance manhole, a stirrer, a high-position overflow pipe, an air chamber, an air inlet pipe, an air inlet valve, an air compressor, an exhaust pipe and an exhaust valve, wherein the conditioning tank is arranged on the left side of the concrete tank body, the maintenance manhole is arranged on the left side of the top of the concrete tank body, the stirrer is arranged on the top of the conditioning tank, the left side wall of the concrete tank body is communicated with the high-position overflow pipe, the air chamber is arranged on the right side of the concrete tank body, the conditioning tank is communicated with the bottom of the air chamber, the air inlet pipe is communicated with the air chamber, the air inlet pipe is provided with the air inlet valve, the supernatant produced after flocculating settling of sludge in the sludge conditioning tank is extracted, the water content of the sludge is reduced, the primary dewatering concentration effect of the sludge is achieved, the equipment required for concentrating the sludge is reduced, the concentrating cost of the sludge is reduced, and the failure rate of the sludge concentrating equipment is reduced.

Description

High-pressure diaphragm type efficient sludge concentration device

Technical Field

The utility model relates to the technical field of sludge dewatering, in particular to a high-pressure diaphragm type efficient sludge concentrating device.

Background

In the existing sewage treatment process, the water content of the sludge needs to be reduced in the sludge dewatering process to meet the subsequent process requirement (hereinafter referred to as sludge concentration), and the sludge concentration is a sludge treatment method for reducing the water content of the sludge discharged by a water treatment structure so as to reduce the volume of the sludge. Is suitable for sludge with higher water content. For example, activated sludge, which has a water content of up to about 99%. When the water content of the sludge is reduced from 99% to 96%, the volume of the sludge can be reduced to 1/4 of the original volume. In order to effectively and economically further treat the sludge, it is necessary to concentrate the sludge. The water content of the concentrated sludge is generally 95-97%. The traditional sludge dewatering and sludge concentration method is to concentrate sludge with high water content by using a concentration tank (the concentration tank has two operation modes of continuous operation and intermittent operation, the continuous operation means continuous sludge feeding and continuous sludge discharging, which are easy to realize in a sewage treatment plant with a larger scale, the small sewage treatment plant can only intermittently feed and discharge sludge generally, because the primary sedimentation tank can only intermittently operate, the continuous operation can keep a sludge layer stable and is beneficial to the concentration effect, a treatment plant which cannot continuously operate must "feed and discharge" to ensure that the operation tends to be continuous as much as possible, and of course, the operation depends on the sludge discharging operation of the primary sedimentation tank to a great extent, when the "feed and discharge" cannot be realized, at least timely sludge discharging is ensured, and each sludge discharging must not be excessive, otherwise, the sludge discharging speed exceeds the concentration speed, the sludge discharging becomes thin and the sludge layer is destroyed). The other type of sludge concentration is to add PAM coagulant into the sludge, then mechanically concentrate (1-fold spiral shell machine 2-belt type concentrator 3-centrifugal concentrator) to reduce the water content of the sludge, then add PAC flocculant into a sludge conditioning tank to stir, and further separate the sludge from the water and then enter the next process. Wherein, the spiral shell machine and the centrifugal machine both adopt rotary motion to generate solid-liquid separation to extract water in the sludge, and the belt type thickener adopts a filter cloth filtration mode to separate the sludge from the water to extract the water. And then the water content of the sludge is continuously compressed by other processes to reach the industry standard.

The traditional sludge concentration, the hydraulic retention time of the sludge in a sludge concentration tank is difficult to control, (for a certain determined sludge concentration tank, too short retention time can lead to too high concentration of supernatant and too low concentration of discharged sludge to achieve the proper concentration effect, too long retention time firstly causes hydrolysis and acidification to reduce the particle size of sludge particles and lighten the specific gravity, and leads to concentration difficulty, if the retention time is prolonged, anaerobic decomposition or denitrification can be carried out to directly lead to sludge floating up, thus the concentration cannot be smoothly carried out.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

The present utility model has been made in view of the above and/or problems occurring in the prior sludge conditioning tanks.

Therefore, the utility model aims to provide a high-pressure diaphragm type efficient sludge concentration device, which utilizes the flocculation precipitation function of a sludge conditioning tank, uses an air compressor to provide a compressed air source, utilizes air to occupy a place to improve the liquid level, extracts supernatant after flocculation precipitation to reduce the water content of sludge, achieves the effect of sludge concentration, extracts supernatant produced after flocculation precipitation of sludge in the sludge conditioning tank, reduces the water content of the sludge, achieves the effect of preliminary dehydration concentration of the sludge, reduces equipment required by sludge concentration, reduces the sludge concentration cost and reduces the failure rate of sludge concentration equipment.

In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

a high pressure diaphragm sludge high efficiency concentrating apparatus, comprising:

the air conditioner comprises a concrete tank body, a conditioning tank, a maintenance manhole, a stirrer, a high-position overflow pipe, an air chamber, an air inlet pipe, an air inlet valve, an air compressor, an exhaust pipe and an exhaust valve, wherein the conditioning tank is arranged on the left side of the concrete tank body, the maintenance manhole is arranged on the left side of the top of the concrete tank body, the stirrer is arranged on the top of the conditioning tank, the left side wall of the concrete tank body is communicated with the high-position overflow pipe, the air chamber is arranged on the right side of the concrete tank body, the conditioning tank is communicated with the bottom of the air chamber, the top of the air chamber is communicated with the air inlet pipe, the air inlet valve is arranged on the air inlet pipe, the top of the air inlet pipe is connected with the air compressor, and the exhaust pipe is provided with the exhaust valve.

As a preferable scheme of the high-pressure diaphragm type sludge efficient concentration device, the utility model comprises the following steps: the inner wall of the concrete tank body is provided with a waterproof coating film.

As a preferable scheme of the high-pressure diaphragm type sludge efficient concentration device, the utility model comprises the following steps: and the top of the maintenance manhole is provided with a flip cover.

As a preferable scheme of the high-pressure diaphragm type sludge efficient concentration device, the utility model comprises the following steps: the stirring blade of the stirrer stretches into the bottom of the inner cavity of the conditioning tank.

As a preferable scheme of the high-pressure diaphragm type sludge efficient concentration device, the utility model comprises the following steps: the air inlet valve and the air outlet valve are both arranged outside the concrete tank body.

As a preferable scheme of the high-pressure diaphragm type sludge efficient concentration device, the utility model comprises the following steps: the top of the air chamber is of a closed structure.

Compared with the prior art: the utility model utilizes the flocculation precipitation function of the sludge conditioning tank, uses the air compressor to provide a compressed air source, uses the air to occupy a place to improve the liquid level, extracts supernatant after flocculation precipitation to reduce the water content of sludge, achieves the effect of concentrating the sludge, extracts supernatant produced by flocculation precipitation of the sludge in the sludge conditioning tank, reduces the water content of the sludge, achieves the effect of primary dehydration and concentration of the sludge, reduces equipment required by the concentration of the sludge, reduces the concentration cost of the sludge, and reduces the failure rate of the sludge concentration equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:

FIG. 1 is a schematic diagram of the structure of the utility model when the gravity flocculation sedimentation is carried out by the sludge replenishment;

FIG. 2 is a schematic diagram of the structure of the sludge in the conditioning tank after the gravity flocculation precipitation is completed.

In the figure: 1 concrete cell body, 2 conditioning pond, 3 maintenance manhole, 4 agitator, 5 high-order overflow pipe, 6 air chamber, 7 intake pipe, 8 admission valve, 9 air compressor machine, 10 blast pipe, 11 discharge valve.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

The utility model provides a high-pressure diaphragm type high-efficiency sludge concentration device, which utilizes the flocculation precipitation function of a sludge conditioning tank, uses an air compressor to provide a compressed air source, utilizes air to occupy space to improve liquid level, extracts supernatant after flocculation precipitation, reduces the water content of sludge, achieves the effect of sludge concentration, extracts supernatant produced by flocculation precipitation of sludge in the sludge conditioning tank, reduces the water content of the sludge, achieves the effect of primary dehydration concentration of the sludge, reduces equipment required by sludge concentration, reduces the cost of sludge concentration, reduces the failure rate of sludge concentration equipment, and please refer to figures 1-2, and comprises: concrete cell body 1, conditioning pond 2, maintenance manhole 3, agitator 4, high-order overflow pipe 5, air chamber 6, intake pipe 7, admission valve 8, air compressor machine 9, blast pipe 10 and discharge valve 11.

The left side of the concrete tank body 1 is provided with a conditioning tank 2, the left side of the top of the concrete tank body 1 is provided with a maintenance manhole 3, the top of the conditioning tank 2 is provided with a stirrer 4, the left side wall of the concrete tank body 1 is communicated with a high-level overflow pipe 5, the right side of the concrete tank body 1 is provided with an air chamber 6, the conditioning tank 2 is communicated with the bottom of the air chamber 6, the top of the air chamber 6 is communicated with an air inlet pipe 7, an air inlet valve 8 is arranged on the air inlet pipe 7, the top of the air inlet pipe 7 is connected with an air compressor 9, the top of the air chamber 6 is communicated with an exhaust pipe 10, an exhaust valve 11 is arranged on the exhaust pipe 10, and the air inlet valve 8 and the exhaust valve 11 are all arranged outside the concrete tank body 1.

The inner wall of the concrete tank body 1 is provided with a coating waterproof film, so that water seepage is avoided.

The top of the maintenance manhole 3 is provided with a flip cover for sealing the maintenance manhole 3 and preventing foreign matters from falling into the conditioning tank 2.

The stirring blade of the stirrer 4 stretches into the bottom of the inner cavity of the conditioning tank 2, so that the sludge in the interior can be effectively stirred.

The top of the air chamber 6 is of a closed structure, so that the air tightness is guaranteed, air leakage is avoided, and the inside of the air chamber 6 can be inflated and pressurized.

When the device is specifically used, in the process of gravity flocculation precipitation by sludge replenishment in the sludge conditioning tank, in the process of gravity flocculation precipitation by sludge replenishment, an air inlet valve 8 in a normally closed state is closed, an air outlet valve 11 in a normally open state is opened, an air chamber 6 does not form a closed space, the liquid level of the conditioning tank 2 is the same as that of the air chamber 6, and the liquid level of the conditioning tank 2 is lower than that of a high-level overflow pipe 5;

in fig. 2, when the sludge conditioning tank is in fig. 1 and the gravity flocculation precipitation is completed on the sludge in the conditioning tank, solid suspended matters in the sludge are separated from liquid, so that supernatant liquid in the upper layer and solid matters in the lower layer are generated, at the same time, a normally closed air inlet valve 8 is controlled to be opened, a normally open air outlet valve 11 is closed, an air chamber 6 forms a closed space, compressed air enters the air chamber 6 which forms the closed space through the opened air inlet valve 8, occupies the upper layer of the air chamber 6 and gradually pressurizes the liquid level of the air chamber 6, the liquid level of the air chamber 6 is reduced, the liquid level of the conditioning tank 2 connected with the liquid level is increased due to the reduction of the liquid level of the air chamber 6, when the liquid level of the conditioning tank 2 is increased to be higher than the bottom of a high-level overflow pipe 5, the supernatant liquid in the conditioning tank 2 is discharged and collected through the high-level overflow pipe 5, the sludge in the conditioning tank 2 is also discharged due to the drainage of the supernatant liquid, the water content is reduced, so that sludge concentration is realized, the air inlet valve 8 in an opened state after the collection is closed, the air inlet valve 11 in a closed state is opened, the state is reentered in the state in fig. 1, the sludge is replenished, the gravity flocculation precipitation is performed, the sludge is separated, the supernatant liquid is generated, the liquid is moved, and the sludge is subjected to the state, and the state is subjected to the circulation, and the water is recycled, and the water is reduced.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a high-pressure diaphragm type mud high-efficient enrichment facility which characterized in that includes: concrete cell body (1), nursing pool (2), maintenance manhole (3), agitator (4), high-order overflow pipe (5), air chamber (6), intake pipe (7), admission valve (8), air compressor (9), blast pipe (10) and discharge valve (11), concrete cell body (1) left side sets up nursing pool (2), nursing manhole (3) are seted up in concrete cell body (1) top left side, nursing pool (2) top sets up agitator (4), concrete cell body (1) left side wall intercommunication high-order overflow pipe (5), concrete cell body (1) right side sets up air chamber (6), nursing pool (2) and air chamber (6) bottom intercommunication, air chamber (6) top intercommunication intake pipe (7), set up admission valve (8) on intake pipe (7), air compressor (9) are connected on intake pipe (7) top, air chamber (6) top intercommunication blast pipe (10), set up discharge valve (11) on blast pipe (10).

2. The high-pressure diaphragm type sludge efficient concentration device according to claim 1, wherein a waterproof coating film is arranged on the inner wall of the concrete tank body (1).

3. The high-pressure diaphragm type sludge efficient concentration device according to claim 1, wherein a flip cover is arranged at the top of the maintenance manhole (3).

4. The high-pressure diaphragm type sludge efficient concentration device according to claim 1, wherein the stirring blades of the stirrer (4) extend into the bottom of the inner cavity of the conditioning tank (2).

5. The high-pressure diaphragm type sludge efficient concentration device according to claim 1, wherein the air inlet valve (8) and the air outlet valve (11) are arranged outside the concrete tank body (1).

6. The high-pressure diaphragm type sludge efficient concentration device as claimed in claim 1, wherein the top of the air chamber (6) is of a closed structure.