CN220834481U - Blast furnace water slag flushing filtering device - Google Patents

Abstract

The utility model aims to provide a blast furnace water slag flushing filtering device which solves the problem of blockage of a slag flushing pipeline and comprises a liquid inlet pipe, a liquid outlet pipe and a filtering bin, wherein the liquid inlet pipe and the liquid outlet pipe are respectively connected with two ends of the filtering bin, and the liquid inlet pipe is communicated with the liquid outlet pipe.

Description

Blast furnace water slag flushing filtering device

Technical Field

The utility model relates to the field of steelmaking, in particular to a blast furnace water slag flushing filtering device.

Background

The normal blast furnace water slag flushing process is to change liquid slag melted by a blast furnace into solid slag through the action of cooling water.

The cooling water is generally controlled at about 50 ℃ in the water slag flushing process to be the best control point of the slag flushing process, but the water temperature is difficult to meet the control requirement of the process theory in the actual production process, so that fine particles in the slag flushing water are easily accumulated due to the rise of the water temperature in the process of rectifying and modifying the slag flushing, scale with calcium salt as a main component is formed on the inner wall of a circulating water pipeline, and the scale is accumulated to a certain extent due to the effect of water flow to cause the phenomenon that the scale drops, so that the large scale forms on the inner wall of the pipeline to circulate, and when the water reaches the inside of a water pump or a water pipe outlet flushing box, the water outlet is not smoothly blocked, so that the slag flushing flow is reduced, the slag flushing effect is influenced, and the blast furnace production process is influenced.

Analysis shows that the problem that the water yield of flushing slag is influenced to the greatest extent when the pipeline is scabbed and large blocks of pipeline are fallen off to block the water pump and the pipeline outlet is caused.

How to prevent the pipeline from being blocked is a problem to be solved.

Disclosure of utility model

The utility model aims to provide a blast furnace water slag flushing filtering device which solves the problem of blockage of a slag flushing water pipeline.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a blast furnace water flushing slag filtering device which comprises a liquid inlet pipe, a liquid outlet pipe and a filtering bin, wherein the liquid inlet pipe and the liquid outlet pipe are respectively connected with two ends of the filtering bin, and the liquid inlet pipe is communicated with the liquid outlet pipe.

Optionally, be provided with first flashboard valve and second flashboard valve on the feed liquor pipe, first flashboard valve with the second flashboard valve looks interval sets up.

Optionally, the filter bin bottom is provided with the dirt-removing gate valve, the dirt-removing gate valve includes the swivel, the swivel is rotatable to be set up on the dirt-removing gate valve.

Optionally, the cover is transparent.

Optionally, a pressure gauge is arranged on the liquid outlet pipe.

Further, a liquid guide pipe is arranged on the liquid outlet pipe, the pressure gauge is arranged on the liquid guide pipe, a manual valve is further arranged on the liquid guide pipe, and the manual valve is located between the pressure gauge and the liquid outlet pipe.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

According to the blast furnace water slag flushing filtering device, the filter plates are arranged in the filtering bin, so that when fine particles in slag flushing water fall on the filter plates, a mode of manually observing the flow of slag flushing water is adopted, the slag flushing water enters the filter plates from the maintenance holes for periodic cleaning, and therefore scale is not formed on the pipeline by the fine particles, and the problem of blockage of a slag flushing water pipeline is solved.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a front view of a blast furnace water slag-flushing filtration device according to a preferred embodiment of the present utility model;

Fig. 2 is an enlarged view of the filter plate shown in fig. 1.

Wherein reference numerals are as follows:

1. A liquid inlet pipe; 2. a liquid outlet pipe; 3. a filtering bin; 4. a filter plate; 5. maintaining the hole; 6. a cover body; 7. a first gate valve; 8. a second gate valve; 9. a dirt-removing gate valve; 10. a swivel; 11. a pressure gauge; 12. a catheter; 13. a manual valve.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 and 2, the filter comprises a liquid inlet pipe 1, a liquid outlet pipe 2 and a filter bin 3, wherein the liquid inlet pipe 1 and the liquid outlet pipe 2 are respectively connected with two ends of the filter bin 3, slag flushing water enters the filter bin 3 from the liquid inlet pipe 1 and is filtered in the filter bin 3, and the filtered slag flushing water is beaten out from the liquid outlet pipe 2, so that the liquid inlet pipe 1 is communicated with the liquid outlet pipe 2, namely, the liquid inlet pipe 1 is communicated with the liquid outlet pipe 2 through the filter bin 3, and fine particles in the slag flushing water entering the filter bin 3 can be precipitated.

The filter bin 3 is internally provided with the filter plate 4, the filter plate 4 is a steel plate with a certain thickness, the filter hole is formed in the filter plate, the filter bin 3 is provided with the maintenance hole 5, the maintenance hole 5 is positioned between the filter plate 4 and the liquid outlet pipe 2, the shape of the maintenance hole 5 is not limited, the filter bin 3 is movably provided with the cover body 6, the cover body 6 is used for covering or opening the maintenance hole 5, when the filter bin 3 filters liquid, the cover body 6 is covered in the filter bin 3 and is a closed space, when a lot of fine particles or scales are arranged on the filter plate 4, the cover body 6 can be opened, then the fine particles or scales on the filter plate 4 can fall to the bottom of the filter bin 3 by manual work and can be beaten on the filter plate 4 by manual work because of vibrating the filter plate 4, some clean liquid is added to wash the filter plate 4, and then the fine particles or scales are discharged from the bottom of the filter bin 3 along with the liquid, so that the fine particles or scales in the liquid outlet pipe 2 are cleaned, and the pipeline is not easy to block.

Be provided with first flashboard valve 7 and second flashboard valve 8 on the feed liquor pipe 1, first flashboard valve 7 and second flashboard valve 8 looks interval sets up, and one of them is reserve of first flashboard valve 7 and second flashboard valve 8, when no longer need provide the slag flushing water to filtering storehouse 3, can close first flashboard valve 7 or close second flashboard valve 8, and the liquid outlet has all been seted up to first flashboard valve 7 bottom and second flashboard valve 8 bottom, if there is residual liquid in the feed liquor pipe 1, or remain the granule, just can follow the liquid outlet of first flashboard valve 7 or the liquid outlet of second flashboard valve 8 and go out.

The filter house 3 bottom is provided with the clean gate valve 9, and clean gate valve 9 includes swivel 10, and swivel 10 rotatable setting is on clean gate valve 9, if the granule or the incrustation scale in the filter house 3 is to be cleared up, and manual rotation swivel 10 opens clean gate valve 9 through rotatory swivel 10, then granule or incrustation scale are discharged from clean gate valve 9 in liquid.

The cover 6 is transparent, i.e. the filtering condition of the filter plate 4 can be observed through the transparent cover 6, and if the filter plate 4 is provided with scale or too many small particles, manual intervention is required, i.e. the cover 6 is opened, the filter plate 4 is manually knocked through the maintenance hole 5.

Be provided with manometer 11 on drain pipe 2, under the normal condition, the liquid pressure difference of filter 4 both sides is little, but along with filterable slag flushing water is more, has packed tiny granule or incrustation scale on the filter 4, and filter 4 filter effect is worse, and the pressure that manometer 11 detected is less and less like this, and when the pressure value that manometer 11 detected was less than the setting value, need the manual work to observe through maintenance hole 5 and judge, whether need the manual work to wash filter 4.

The liquid outlet pipe 2 is provided with a liquid guide pipe 12, the pressure gauge 11 is arranged on the liquid guide pipe 12, the liquid guide pipe 12 is also provided with a manual valve 13, and the manual valve 13 is positioned between the pressure gauge 11 and the liquid outlet pipe 2, so that when the pressure gauge 11 needs to be replaced, the manual valve 13 is manually closed, and then the pressure gauge 11 is replaced, particularly when slag flushing water is filtered.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (6)

1. The utility model provides a blast furnace water flushing slag filter equipment, includes feed liquor pipe (1), drain pipe (2) and filtration storehouse (3), feed liquor pipe (1) with drain pipe (2) are connected respectively the both ends of filtration storehouse (3), feed liquor pipe (1) with drain pipe (2) communicate with each other, a serial communication port, be provided with filter (4) in filtration storehouse (3), be provided with maintenance hole (5) on filtration storehouse (3), maintenance hole (5) are located filter (4) with between drain pipe (2), the activity is provided with lid (6) on filtration storehouse (3), lid (6) are used for the lid to close or open maintenance hole (5).

2. The blast furnace water flushing slag filtering device according to claim 1, wherein a first gate valve (7) and a second gate valve (8) are arranged on the liquid inlet pipe (1), and the first gate valve (7) and the second gate valve (8) are arranged at intervals.

3. The blast furnace water slag-flushing filtration device according to claim 1, characterized in that the bottom of the filtration bin (3) is provided with a cleaning gate valve (9), the cleaning gate valve (9) comprises a swivel (10), and the swivel (10) is rotatably arranged on the cleaning gate valve (9).

4. The blast furnace water slag-flushing filtration device according to claim 1, characterized in that the cover (6) is transparent.

5. The blast furnace water slag-flushing filtration device according to claim 1, characterized in that a pressure gauge (11) is arranged on the liquid outlet pipe (2).

6. The blast furnace water flushing slag filtering device according to claim 5, wherein a liquid guiding pipe (12) is arranged on the liquid outlet pipe (2), the pressure gauge (11) is arranged on the liquid guiding pipe (12), a manual valve (13) is further arranged on the liquid guiding pipe (12), and the manual valve (13) is located between the pressure gauge (11) and the liquid outlet pipe (2).