CN111635088A

CN111635088A - Jet type medicine adding device

Info

Publication number: CN111635088A
Application number: CN202010446361.4A
Authority: CN
Inventors: 熊刚; 周旋辉; 张晓东; 廖宁安; 徐滔明; 章磊
Original assignee: Hunan Longhui Environmental Protection Co ltd
Current assignee: Hunan Longhui Environmental Protection Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-09-08

Abstract

The utility model provides a jet type charge device, includes medicine storage tank, ejector and the perforated pipe that connects gradually through the pipeline, be equipped with the medicament delivery pump on the pipeline between ejector and the medicine storage tank, air pressure ware is connected to the ejector, the bottom in sludge impoundment is located to the perforated pipe, and air pressure ware carries compressed air to mix with the medicament solution in the ejector, and gas-liquid mixture carries to the perforated pipe in, at the aperture blowout and the sludge reaction of perforated pipe. By utilizing the invention, the mixing efficiency and the reaction rate can be improved, the problem that the sludge and the medicament are difficult to be quickly and uniformly mixed in the traditional medicament adding method is solved, and the medicament adding amount is reduced by more than 15 percent, so that the operation cost is reduced; meanwhile, air is introduced into the sludge tank, so that the sludge can maintain higher dissolved oxygen, the sludge is prevented from being anaerobic, the sludge filtering performance is improved, and the phosphorus content in the filter press liquid is reduced.

Description

Jet type medicine adding device

Technical Field

The invention relates to a dosing device for sludge treatment, in particular to a jet type dosing device.

Background

In sludge treatment processes, the use of chemical agents, such as flocculants, coagulants, conditioners, etc., is often involved. The addition of the chemical agent can improve the property and the state of the sludge in a very short time, thereby achieving good treatment effect.

At present, in the sludge dosing process, the following dosing methods and dosing devices are mainly used.

The first method comprises the following steps: adding the medicament into a medicament adding port of the conditioning tank. The top of the conditioning tank is provided with a sludge feeding port and a medicament feeding port, and the medicament feeding ports are one or more than one according to actual needs. Firstly, adding sludge into a conditioning tank, then adding a medicament (one or more medicaments), and continuously stirring by a stirring machine of the conditioning tank in the process to uniformly mix the sludge and the medicaments to generate a series of chemical and physical reactions such as electric neutralization, coagulation, bridging and the like, thereby finishing the dosing conditioning of the sludge (see attached figure 1). This method of dosing is currently the most commonly used.

This method has the following disadvantages: when the added medicament is a solid medicament, the concentration of the sludge is too high, and the reaction speed of the medicament and the sludge is too high, the problem that the sludge and the medicament are difficult to be uniformly mixed exists, so that the added medicament does not fully play a role, the medicament is wasted, and the sludge conditioning effect is influenced.

The second method comprises the following steps: and adding the medicament by adopting a pipeline mixer. In the mud pipeline, set up one or more line mixer, add the medicament at line mixer medicament throwing mouth, medicament and mud produce the flow direction change when passing through in the line mixer, the turbulent phenomenon appears to improve mixing efficiency, after getting into the conditioning tank, under the effect of mixer, further mix, take place a series of chemistry and physical reaction, accomplish the medicine that adds of mud and take care of (see figure 2).

This method has the following disadvantages: 1. the mixing time of the sludge and the medicament is short, and when the reaction speed of the medicament and the sludge is high, the mixing effect is difficult to ensure, local reaction is easy to cause, and the conditioning effect is influenced; 2. the sundries in the sludge are more, so that the pipeline mixer is easily blocked, and the maintenance work amount is increased.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provide a jet type dosing device which can realize efficient mixing and mass transfer of sludge and a medicament and reduce the dosing amount of the medicament.

According to the technical scheme for solving the technical problems, the jet type dosing device comprises a medicine storage tank, a jet device and a perforated pipe which are sequentially connected through a pipeline, a medicine delivery pump is arranged on the pipeline between the jet device and the medicine storage tank, the jet device is connected with an air pressurizer, the perforated pipe is arranged at the bottom of a sludge pool, the air pressurizer delivers compressed air into the jet device to be mixed with a medicine solution, the gas-liquid mixture is delivered into the perforated pipe, and the compressed air is sprayed out of small holes of the perforated pipe to react with sludge.

Further, the body of the ejector is of a cylindrical structure, one end of the cylinder is provided with a liquid medicine suction nozzle, the pipe wall close to the end is provided with an air suction pipe, and the other end of the cylinder is provided with a gas-liquid mixture nozzle.

Further, the perforated pipe is composed of a main drug pipe and a branch drug pipe, one end of the main drug pipe is connected with the drug storage tank through a pipeline provided with an ejector, and the other end of the main drug pipe is connected with the branch drug pipe arranged at the bottom of the sludge tank.

Further, the air pressurizer is an air compressor, and the air compressor is connected with an air storage tank.

Furthermore, a plurality of valves are arranged on the pipeline to control the opening and closing of related parts.

Furthermore, the medicine branch pipes are arranged in a square shape, and a plurality of small holes are uniformly formed in the four directions of upward, downward or side surfaces.

Further, the number of the small holes is determined according to the coverage range of the injection holes, and the opening area of each hole is determined according to the cross section area and the opening number of the main pipeline of the dosing pipe.

Further, the medicament branch pipe is fixed at the bottom of the sludge tank through a bracket.

The invention can realize the homogeneous mixing of the sludge and the medicament in a very short time, improve the mixing efficiency and the reaction rate, solve the problem that the sludge and the medicament are difficult to be quickly and uniformly mixed in the traditional medicament adding method, and reduce the medicament adding amount, thereby reducing the operation cost, and when the sludge concentration of the conditioning tank is too high and the medicament reaction speed is higher, the jet type medicament adding method can reduce the medicament dosage by more than 15 percent, thereby obviously reducing the medicament cost; meanwhile, air is introduced into the sludge tank, so that the sludge can maintain higher dissolved oxygen, the sludge is prevented from being anaerobic, the sludge filtering performance is improved, and the phosphorus content in the filter press liquid is reduced.

Drawings

FIG. 1 is a schematic diagram of a first prior art;

FIG. 2 is a schematic diagram of a second prior art;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a schematic diagram of the structure of the perforated tube of the embodiment of FIG. 3;

fig. 6 is a schematic structural view of the ejector in the embodiment shown in fig. 3.

In the figure: 1-pipeline, 2-medicine storage tank, 3-ejector, 31-suction nozzle, 32-nozzle, 33-air suction pipe, 34-ejector inner cavity, 4-perforated pipe, 41-main medicine pipe, 42-branch medicine pipe, 43-bracket, 421-small hole, 5-medicine delivery pump, 6-air pressurizer, 61-air storage tank, 62-air compressor and 7-sludge tank.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to the attached drawings 3-6, this embodiment includes medicine storage tank 2, ejector 3 and perforated pipe 4 that connect gradually through pipeline 1, be equipped with medicament delivery pump 5 on the pipeline 1 between ejector 3 and the medicine storage tank 2, air compressor 6 is connected to ejector 3, perforated pipe 4 locates the bottom of sludge impoundment 7, and air compressor 6 carries compressed air to mix with the medicament solution in ejector 3, and the gas-liquid mixture carries to perforated pipe 4 in, at the aperture 421 blowout and the mud reaction of perforated pipe 4.

The air pressurizer 6 is an air compressor 62, the air compressor 62 is connected with an air storage tank 61, the air compressor 62 provides compressed air to the air storage tank 61, and the compressed air in the air storage tank 61 is conveyed to the ejector 3 through a pipeline.

The ejector 3 is a cylindrical structure, one end of the cylinder is provided with a liquid medicine suction nozzle 31, the pipe wall close to the end is provided with an air suction pipe 33, the other end of the cylinder is provided with an air-liquid mixture nozzle 32, the suction nozzle 31 is used for receiving the medicine solution, the air suction pipe 33 is used for receiving the compressed air, and the medicine solution and the compressed air are mixed in an inner cavity 34 of the ejector and then are ejected through the nozzle 32.

Perforated pipe 4 is responsible for 41 and medicament branch pipe 42 by the medicament and constitutes, and the medicament is responsible for the one end of 41 and is linked together through pipeline 1 and the medicine storage tank 2 that is equipped with ejector 3, the other end and the medicament branch pipe 42 intercommunication of locating sludge impoundment 7 bottom, medicament branch pipe 42 is the rectangle and arranges, and upward and/or the side is evenly opened has a plurality of apertures 421 for the compressed air of blowout and medicament (gas-liquid mixture), and the quantity of trompil is confirmed according to the coverage of jet orifice, and single hole trompil area is confirmed according to the sectional area and the trompil quantity that the medicament was responsible for. The agent branch pipe 42 is fixed at the bottom of the sludge tank 7 through a bracket 43.

The working process is as follows: the medicament solution in the medicine storage tank 2 is under the effect of medicament delivery pump 5, and the medicament solution passes through ejector suction nozzle 31 and gets into in the ejector 3, and when the medicament solution that flows at a high speed passes through ejector inner chamber 34, at ejector inner chamber 34 formation vacuum, simultaneously, a large amount of compressed air is inhaled to the breathing pipe 33, and compressed air gets into ejector inner chamber 34 after, violently mixes with the medicament solution, and compressed air exists with the fine bubble form in the medicament solution, forms gas-liquid mixture. After the gas-liquid mixture enters the perforated pipe 4, the gas-liquid mixture is sprayed out from the small hole 421 of the agent branch pipe 42 at the bottom of the sludge tank, and the rapidly flowing gas-liquid mixture and the sludge generate strong convection and reverse collision effects, so that the mixing of the gas-liquid mixture and the sludge can be accelerated; tiny bubbles accompanied with compressed air in the agent solution can increase the contact area of the sludge and the agent and strengthen the mixing and mass transfer effects; under the mechanical forced stirring and shearing action of the stirrer, the sludge at the bottom of the conditioning tank (the sludge tank 7) and the sludge at the upper part are further mixed, the homogenization of the sludge and the medicament is realized in a very short time, and the mixing efficiency and the reaction rate are improved.

Practice proves that the invention can realize the homogeneous mixing of the sludge and the medicament in a very short time, and reduce the dosage of the medicament by more than 15 percent; the operation cost is reduced by more than 15 percent; meanwhile, air is introduced into the sludge tank, so that the sludge can maintain higher dissolved oxygen, the sludge is prevented from being anaerobic, the sludge filtering performance is improved, and the phosphorus content in the filter press liquid is reduced.

Various modifications and variations of the present invention may be made by those skilled in the art, and they are still within the scope of the present patent invention provided they are within the scope of the claims and their equivalents.

What is not described in detail in the specification is prior art that is well known to those skilled in the art.

Claims

1. The utility model provides a efflux formula charge device which characterized in that: include storage medicine jar, ejector and the perforated pipe that connects gradually through the pipeline, be equipped with the medicament delivery pump on the pipeline between ejector and the storage medicine jar, air pressure ware is connected to the ejector, the bottom in sludge impoundment is located to the perforated pipe, and air pressure ware carries compressed air to the ejector in to mix with the medicament solution, and gas-liquid mixture carries to the perforated pipe in, at the aperture blowout and the sludge reaction of perforated pipe.

2. The fluidic applicator of claim 1, wherein: the jet device body is of a cylindrical structure, one end of the cylinder is provided with a liquid medicine suction nozzle, the pipe wall close to the end is provided with an air suction pipe, and the other end of the cylinder is provided with a gas-liquid mixture nozzle.

3. The fluidic applicator of claim 1 or 2, wherein: the perforated pipe is composed of a main drug pipe and a branch drug pipe, one end of the main drug pipe is connected with the drug storage tank through a pipeline provided with an ejector, and the other end of the main drug pipe is connected with the branch drug pipe arranged at the bottom of the sludge tank.

4. The fluidic applicator of claim 1 or 2, wherein: the air pressurizer is an air compressor, and the air compressor is connected with an air storage tank.

5. The fluidic applicator of claim 1 or 2, wherein: and the pipeline is provided with a plurality of valves for controlling the opening and closing of related parts.

6. The fluidic applicator of claim 3, wherein: the medicine branch pipes are arranged in a square shape, and a plurality of small holes are uniformly formed in the four directions of upward, downward or side surfaces.

7. The fluidic applicator of claim 6, wherein: the number of the small holes is determined according to the coverage range of the injection holes, and the opening area of a single hole is determined according to the cross section area and the opening number of the main pipeline of the dosing pipe.

8. The fluidic applicator of claim 3, wherein: the agent branch pipe is fixed at the bottom of the sludge tank through a bracket.