CN217511224U - Absorber overflow tube defoamer - Google Patents

Abstract

The utility model relates to an absorption tower overflow pipe defoamer. At present, the conventional defoaming agent method is to add a defoaming agent into a pit of an absorption tower, pump the defoaming agent into the absorption tower through a pit pump to eliminate foam inside the absorption tower and reduce overflow of the absorption tower. An absorption tower overflow tube defoamer, comprising: the device comprises a defoaming agent dosing tank (1) and an overflow pipe (2), wherein a water injection pipe (3) is connected above the defoaming agent dosing tank, the water injection pipe is connected with a flushing water pipe (4) through an elbow, a water injection valve (5) is installed on the water injection pipe, and a flushing valve (6) is installed on the flushing water pipe; the side box body of the defoaming agent dosing box is connected with a burette (7), a medicine receiving hopper is arranged below the burette and connected with a medicine feeding pipe (8), and the medicine feeding pipe is connected with a flushing water pipe through an elbow; the burette is provided with a titration valve (9), and the dosing pipe is provided with a check valve (10). The utility model discloses be applied to the absorption tower desulfurization field.

Description

Absorber overflow tube defoamer

Technical Field

The utility model relates to an absorption tower overflow pipe defoamer.

Background

In the limestone-gypsum wet desulphurization process, the foaming overflow of the absorption tower is a very common phenomenon, the time of 7-15 days is generally required when the foaming of the absorption tower is treated, and if the foaming reason is not clear, the foaming is continued when the treatment is improper. In the meantime, in order to prevent the overflow of the absorption tower and the slurry overflow caused by the misalignment of a liquid level meter of a pit of the absorption tower, a defoaming agent is firstly used for eliminating foam, and meanwhile, the foaming problem is thoroughly solved by means of dehydration, wastewater discharge, stopping using a synergist and the like. If the foam is caused by stone powder, water quality and other reasons, the quality of the stone powder and water source cannot be effectively changed, foaming of the absorption tower can exist all the time, and the defoaming agent needs to be used all the time. The conventional defoaming agent method is to add the defoaming agent into a pit of the absorption tower, pump the defoaming agent into the absorption tower through a pit pump to eliminate foam in the absorption tower and reduce overflow of the absorption tower. If the organic silicon defoaming agent is used, 1-2 barrels are needed in one day, and one barrel is needed in two days for the polyether defoaming agent, so that the slight overflow of the absorption tower can be ensured, the normal operation of equipment such as a pit of the absorption tower is not influenced, and the environmental pollution of the area of the absorption tower is not caused. About 17 ten thousand yuan of defoaming agent is used in one year, and the influence on the cost of desulfurization production materials is large.

Disclosure of Invention

The utility model aims at providing an absorption tower overflow pipe defoamer, absorption tower overflow pipe defoamer's use can prevent effectively that the thick liquid foam from scale deposit on overflow pipe evacuation pipe, prevents that overflow pipe evacuation pipe from blockking up and initiating siphonage, causes heavily at the operation accident.

The above purpose is realized by the following technical scheme:

an absorption tower overflow tube defoamer, comprising: the system comprises a defoaming agent dosing tank and an overflow pipe, wherein a water injection pipe is connected above the defoaming agent dosing tank and is connected with a flushing water pipe through an elbow, a water injection valve is installed on the water injection pipe, and a flushing valve is installed on the flushing water pipe;

the side box body of the defoaming agent dosing box is connected with a burette, a medicine receiving hopper is arranged below the burette and connected with a dosing pipe, and the dosing pipe is connected with the flushing water pipe through an elbow; the burette on install the titration valve, the dosing pipe on install the check valve.

The absorption tower overflow pipe defoamer, the dosing pipe is connected with the overflow pipe.

The absorption tower overflow pipe foam breaker, the top of overflow pipe be connected with the evacuation pipe.

The utility model has the advantages that:

1. the utility model discloses add the dosing tank to the defoaming agent medicine, open the water injection valve and blend into the diluent of certain concentration to the defoaming agent, control the titration rate through titration valve, the diluent flows into the overflow pipe and eliminates intraductal foam. When the titration pipeline needs to be flushed, the check valve is closed, the flushing valve is opened to flush the pipeline, and water flow physical defoaming can be used.

2. The utility model discloses can effectively eliminate absorption tower overflow foam, protection absorption tower pit equipment safety reduces the pollution to the factory environment, improves the utilization ratio of defoaming agent. Relates to the technical field of environmental protection, and the device comprises a defoaming agent dosing tank, a flushing water system, a titration system and the like. The defoaming agent is added into a defoaming agent dosing box and mixed with water to form a diluted solution, so that the defoaming agent can flow out and the dosage can be controlled conveniently, the opening of a titration valve is adjusted to a proper value by observing the water flow of a pipe opening, and the defoaming agent diluted solution flows into the side of an absorption tower overflow pipe absorption tower to eliminate pipeline foam and prevent overflow. Because the pipeline area is narrow and small, the concentration of the defoaming agent in the slurry can be effectively maintained, the generation of foam is prevented, and the using amount of the defoaming agent is reduced.

3. The utility model discloses can the effective control absorption tower overflow, provide sufficient time for the thick liquid foaming is administered, this device adds the defoaming agent in the overflow pipe, can prevent effectively that the pit pump from beating the pump empty, the pit level gauge is misaligned to cause unusual incident such as pit overflow, the excessive on-the-spot environment of pollution of trench foam to take place, and this device does not change the overflow pipe structure moreover, does not influence the original function of overflow pipe. The process water periodically washes the pipeline to effectively prevent the pipeline from being blocked and is used for washing and defoaming when the absorption tower is slightly foamed.

4. The utility model discloses at DCS picture design density calculation module, but manual input thick liquid density calculates current absorption tower liquid level, can prevent effectively that true liquid level is too high during the absorption tower foaming, causes former flue to advance thick liquid occurence of failure. The foam is lighter, so that the foam can be blown away from an original flue area by smoke in the operation process, a certain inclination is designed at the joint of the original flue and the absorption tower, and the pulp entering accident of the original flue can not occur as long as the liquid level of the absorption tower is controlled within a normal range.

5. The utility model discloses every set of equipment cost is about 4 ten thousand yuan, and in our actual application, it can effectively practice thrift 60% defoaming agent use amount to discover this equipment on the basis of guaranteeing unit safety and stability operation, only 4 months can easily withdraw the cost during the foaming.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

In the figure: 1. defoaming agent dosing tank, 2, overflow pipe, 3, water injection pipe, 4, flushing water pipe, 5, water injection valve, 6, flushing valve, 7, burette, 8, dosing pipe, 9, burette, 10, check valve, 11, emptying pipe.

The specific implementation mode is as follows:

example 1:

an absorption tower overflow tube defoamer, comprising: the system comprises a defoaming agent dosing box 1 and an overflow pipe 2, wherein a water injection pipe 3 is connected above the defoaming agent dosing box, the water injection pipe is connected with a flushing water pipe 4 through an elbow, a water injection valve 5 is installed on the water injection pipe, and a flushing valve 6 is installed on the flushing water pipe; the side box body of the defoaming agent dosing box is connected with a burette 7, a medicine receiving hopper is arranged below the burette, the medicine receiving hopper is connected with a medicine feeding pipe 8, and the medicine feeding pipe is connected with the flushing water pipe through an elbow; the burette on install titration valve 9, the dosing pipe on install check valve 10.

Example 2:

the absorber overflow tube defoamer as described in example 1, wherein said dosing tube is connected to said overflow tube.

Example 3:

the absorber overflow tube foam breaker according to embodiment 1 or 2, wherein a drain pipe 11 is connected to the upper part of the overflow tube.

Claims (3)

1. An absorption tower overflow tube defoamer, comprising: defoaming agent dosing tank and overflow pipe, characterized by: a water injection pipe is connected above the defoaming agent dosing box and is connected with a flushing water pipe through an elbow, a water injection valve is installed on the water injection pipe, and a flushing valve is installed on the flushing water pipe;

the side box body of the defoaming agent dosing box is connected with a burette, a medicine receiving hopper is arranged below the burette and connected with a dosing pipe, and the dosing pipe is connected with the flushing water pipe through an elbow; the burette on install the titration valve, the dosing pipe on install the check valve.

2. The absorber overflow tube defoamer of claim 1, wherein: the medicine feeding pipe is connected with the overflow pipe.

3. The absorber overflow tube defoamer of claim 2, wherein: and an emptying pipe is connected above the overflow pipe.

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