Device for treating blockage of filter screen of drum device on line

Abstract

The utility model relates to the technical field of blast furnace granulated slag treatment, and provides a device for treating blockage of a filter screen of a rotary drum device on line, which comprises a sand storage tank, an air compressor, a first valve, a second valve, a sand blasting gun, a first pipeline, a second pipeline and a third pipeline, the air compressor is communicated with the first pipeline, the first pipeline is communicated with the second pipeline, and the second pipeline is communicated with an air inlet of the sand storage tank. A sand outlet of the sand storage tank is communicated with a third pipeline, the third pipeline is communicated with a first pipeline, the first pipeline is communicated with a sand blasting gun, a first valve is arranged on the second pipeline, and a second valve is arranged on the third pipeline. When the device is used for cleaning stubborn deposits on the filter screen, shutdown is not needed, the production interruption time is shortened, and the continuity and efficiency of blast furnace granulated slag treatment are remarkably improved; the frequency of manually replacing the filter screen is reduced, and the labor intensity and the maintenance cost are reduced; the problem of intractable blockage of the filter screen is effectively solved, the service life of the filter screen is prolonged, and the stability and reliability of the whole drum system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace water slag treatment technical field in metallurgical industry, especially online processing drum device filter screen clogging device. BACKGROUND

[0002] In the process of blast furnace ironmaking, a large amount of water slag needs to be dewatered by the drum device, and in this process, the filter screen is used as a key component to separate water slag and moisture, because the flushing water uses new production water, and the pressure is 400Kpa, which is relatively low, but after long-term operation, the filter screen is easy to be clogged due to the deposition of solid particles in the water slag, especially the stubborn clogging seriously affects the production efficiency and product quality. The traditional cleaning method often needs to stop and clean manually, which not only consumes time and effort, but also increases the production cost and safety hazard. Therefore, it is particularly important to develop a device capable of online and automatic cleaning of filter screen clogging. SUMMARY

[0003] (I) Technical problem solved

[0004] The utility model discloses in order to solve the problem of frequent clogging of filter screen in the existing blast furnace water slag drum device, provides a kind of device that high efficiency, online processing drum device filter screen clogging, to improve production efficiency and the stability of equipment operation.

[0005] (II) Technical scheme

[0006] To achieve the above object, the utility model discloses the following technical scheme: a kind of online processing drum device filter screen clogging device including sand storage tank, air compressor, first valve, second valve, sand blasting gun, first pipeline, second pipeline, third pipeline, the air compressor is communicated first pipeline, the first pipeline is communicated second pipeline, the second pipeline is communicated the gas inlet of sand storage tank, the sand outlet of sand storage tank is communicated third pipeline, third pipeline is communicated first pipeline, the first pipeline is communicated sand blasting gun, first valve is set on the second pipeline, second valve is set on the third pipeline.

[0007] Preferably, the air compressor is connected to the first pipeline by a first hose.

[0008] Preferably, the air compressor is connected to the sand blasting gun by a second hose.

[0009] Preferably, the sand storage tank stores sand with a particle size of 1-3mm.

[0010] Preferably, the first valve has an opening degree of 40-60%, and the second valve has an opening degree of 40-60%.

[0011] Beneficial effects

[0012] The device of the utility model is used for cleaning the stubborn deposit on the filter screen without stopping the machine, reducing the interruption time in production, and significantly improving the continuity and efficiency of the blast furnace water slag treatment; reducing the frequency of manual filter screen replacement, reducing the labor intensity and maintenance cost; effectively solving the stubborn clogging problem of the filter screen, prolonging the service life of the filter screen, and improving the stability and reliability of the entire drum system. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following is a preferred example of the utility model and the detailed description of the drawings.

[0014] Figure 1 It is an overall structure schematic view in the embodiment of the utility model.

[0015] Legend: sand storage tank 1, air compressor 2, first valve 3, second valve 4, sand blasting gun 5, first pipeline 6, second pipeline 7, third pipeline 8, first hose 9, second hose 10. DETAILED DESCRIPTION

[0016] EMBODIMENT

[0017] In view of the problems in the prior art, the utility model provides a device for online processing of filter screen clogging of a drum device, which comprises a sand storage tank 1, an air compressor 2, a first valve 3, a second valve 4, a sand blasting gun 5, a first pipeline 6, a second pipeline 7 and a third pipeline 8, the air compressor 2 is communicated with the first pipeline 6, the first pipeline 6 is communicated with the second pipeline 7, the second pipeline 7 is communicated with the air inlet of the sand storage tank 1, the sand outlet of the sand storage tank 1 is communicated with the third pipeline 8, the third pipeline 8 is communicated with the first pipeline 6, the first pipeline 6 is communicated with the sand blasting gun 5, the first valve 3 is arranged on the second pipeline 7, and the second valve 4 is arranged on the third pipeline 8.

[0018] As a preferred embodiment of the embodiment, the air compressor 2 is connected with the first pipeline 6 through the first hose 9.

[0019] As a preferred embodiment of the embodiment, the air compressor 2 is connected with the sand blasting gun 5 through the second hose 10.

[0020] As a preferred embodiment of the embodiment, the sand storage tank 1 stores sand with a particle size of 1-3mm.

[0021] As a preferred embodiment of the embodiment, the opening degree of the first valve 3 is 40-60%, and the opening degree of the second valve 4 is 40-60%.

[0022] When the check finds that the filter screen is blocked seriously, the pressure of the air compressor 2 is adjusted to 600Kpa, the sand in the sand storage tank 1 is sprayed out at high speed by the sand spraying gun 5 by using the compressed air with the pressure of 600Kpa, a strong sand flow is formed, directly impacts the surface of the filter screen and the blocked position, the opening of the first valve 3 and the second valve 4 needs to be adjusted in the process, generally the opening of the first valve 3 and the second valve 4 is 50% for cleaning. The physical scouring effect of the sand effectively peels off the stubborn water slag particles attached to the filter screen, at the same time, the stainless steel filter screen can resist this cleaning method without being damaged due to its good wear resistance.

[0023] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An apparatus for on-line processing of filter screen clogging of a drum apparatus, characterized by: The sand storage tank, the air compressor, the first valve, the second valve, the sand blasting gun, the first pipeline, the second pipeline and the third pipeline are connected.

2. A device for unblocking the screen of an in-line processing drum according to claim 1, characterized in that: The air compressor is connected with the first pipeline through a first hose.

3. A device for unblocking the screen of an in-line processing drum according to claim 2, characterized in that: The air compressor is connected with the sand blasting gun through a second hose.

4. An apparatus for unblocking the screen of an in-line processing drum as claimed in claim 1, characterized in that: The sand storage tank stores sand with a particle size of 1-3 mm.

5. An apparatus for unblocking the screen of an in-line processing drum as claimed in claim 1, wherein: The opening of the first valve is 40-60%, and the opening of the second valve is 40-60%.

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