CN216838044U

CN216838044U - Dust removing device

Info

Publication number: CN216838044U
Application number: CN202220194373.7U
Authority: CN
Inventors: 王珲; 娄可宾; 王天莹; 张璞; 杨雅娟; 朱晓华
Original assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; MCC Energy Saving and Environmental Protection Co Ltd
Current assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; MCC Energy Saving and Environmental Protection Co Ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-28
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses a dust removal device, which comprises a dust hood, a revolving door, a hinge, a sliding baffle, a track and a pulley, wherein the dust hood is fixed above a smoke dissipation point, the revolving door is rotationally connected with the front side and the rear side of the dust hood through the hinge, the sliding baffle can be movably arranged at the left side or the right side of the dust hood, and the dust hood forms an operation open space or a tapping closed space through the rotation of the revolving door and/or the movement of the sliding baffle; the utility model forms a closed space above the taphole, reduces the dedusting air quantity and reduces the energy consumption; meanwhile, the smoke can be effectively prevented from escaping, the unorganized smoke emission of the factory building is reduced, and the post environment of the factory building is ensured.

Description

Dust removing device

Technical Field

The utility model relates to the technical field of blast furnace tapping dust removal, in particular to a dust removal device of a heat-resistant movable blast furnace tapping hole.

Background

The blast furnace casting house is used as a core procedure factory building for steel production, the dust production can reach 3 kg/t-iron, and the environmental problem is very serious. In the tapping process, air is heated by high-temperature molten iron to form hot plumes, pollutants such as dust rise along with the hot plumes and are diffused, and the environment of a factory building is polluted.

The main dust sources of the casting house comprise a taphole, a main channel, a skimmer, an iron channel, a slag channel, a swing spout and the like, wherein the pollutants at the taphole account for more than 30 percent of the total amount and are the most important treatment areas. Molten iron is sprayed into the main channel from the iron notch, and during the spraying process, the molten iron and impurities carried by the molten iron contact with air, so that a large amount of high-temperature smoke dust and pollutants such as CO, NOx and the like are generated. At present, the most common dust removal device for the taphole is a top suction cover, but the dust removal effect of the common open top suction cover is poor, smoke dust easily escapes to the environment from the lower part of the dust removal cover, and only the air suction volume can be increased and the energy consumption can be increased in order to improve the dust removal efficiency. The iron notch dust removal of a part of cast house adopts the form of an iron notch closed small chamber, but the smoke concentration in the closed small chamber is high, the heat radiation is serious, and the body of an operator is greatly damaged.

Besides dust and harmful gases, high-temperature heat sources are also present in the cast house. The temperature of molten iron can reach 1400 ℃, but a common iron outlet dust removal device does not have any heat radiation prevention measure, the radiation temperature of a local working area can reach 100 ℃, and a heatstroke event of an operator often happens in summer. The problem of radiant heat pollution near the taphole is quite serious.

To this, it is excessive to reduce the high temperature smoke and dust of taphole department, reduces the dust removal amount of wind, reduces the heat radiation of taphole in to the external environment, improves post environment, improves operation workman comfort level, is the utility model discloses the problem that needs the solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dust collector to it is excessive to solve the high temperature smoke and dust that how to reduce taphole department, reduces the amount of wind that removes dust, improves post environment, improves the problem of operation workman comfort level.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dust collector, includes dust excluding hood, revolving door, hinge, sliding damper, track, pulley, the dust excluding hood is fixed in smoke and dust dissipation point top, the revolving door passes through the hinge and rotates to be connected in both sides around the dust excluding hood, the mobilizable sliding damper that sets up in dust excluding hood left side or right side, the dust excluding hood forms the open space of operation or the airtight space of casting iron through the revolving door is rotatory and/or the sliding damper removes.

Further, the pulley is installed below a sliding barrier which moves on the rail by the pulley.

Further, the revolving door is turned over by 0-180 ° by a hinge.

Furthermore, the sliding baffle is cuboid and is formed by welding four steel plates on the front side, the rear side, the upper side and the left side or the right side, and the interior of the sliding baffle is made of refractory bricks resistant to high temperature of more than 1500 ℃.

Furthermore, the length of the sliding baffle is consistent with that of the dust hood, the width of the sliding baffle is 1/5-1/2 of the width of the dust hood, and the height of the sliding baffle is the height from the ground below the dust hood.

Further, the length of the track is 2-5 times of the width of the sliding baffle.

Furthermore, the revolving door is hung on the ground through a hinge, and the sliding baffle moves to the left side or the right side of the dust hood to form a tapping closed space above the tapping hole.

Further, the revolving door is pulled up through the hinge and is parallel to the ground, and meanwhile, the sliding baffle moves to the far side of the dust hood to form an operation open space for manually opening and blocking an iron notch or overhauling equipment.

Furthermore, the revolving door is made of corrugated steel plates, and the wave shapes of the corrugated steel plates are open trapezoids.

Furthermore, the wave-shaped trapezoid of the corrugated steel plate has the depth H of 20-50mm, the angle theta of 45-60 degrees and the L of 60-200mm, and both surfaces of the corrugated steel plate are sprayed with the radiation-proof coating.

Compared with the prior art, the beneficial effects of the utility model are that:

1. a closed space is formed above the tap hole, so that the dedusting air quantity is reduced, and the energy consumption is reduced; meanwhile, the smoke can be effectively prevented from escaping, the unorganized smoke emission of the factory building is reduced, and the post environment of the factory building is ensured.

2. General stokehold operating space all is limited in the blast furnace casting house, and this form just to the dust excluding hood has a lot of restrictions, the utility model discloses the revolving door of well dust excluding hood below is rotatory and slide damper removes, can accomplish to guarantee promptly that dust removal effect does not influence stokehold operation again.

3. Revolving door both sides spraying radiation protection coating, revolving door are corrugated steel plate material in order to increase radiation protection coating surface area, and the reinforcing radiation protection effect separates high temperature heat source and staff on revolving door perpendicular to ground when tapping, and the outwards heat radiation volume of iron notch that can significantly reduce improves factory building thermal environment, reduces operation workman body and feels the temperature.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a dust removing device of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of a dust removing device of the present invention;

fig. 3 is a schematic view of a corrugated steel plate of the dust removing device of the present invention.

In the figure: 1-dust hood, 2-revolving door, 3-hinge, 4-sliding baffle, 5-track, 6-pulley, 7-corrugated steel plate.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to perform clear and complete description of the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is to be understood that the terms "comprises/comprising," "consisting of … …," or any other variation, are intended to cover a non-exclusive inclusion, such that a product, device, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, device, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.

It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship illustrated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device, component, or structure so referred to must have a particular orientation, be constructed in a particular orientation, or be operated in a particular orientation, and are not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a dust collector, includes dust excluding hood 1, revolving door 2, hinge 3, sliding baffle 4, track 5, pulley 6, dust excluding hood 1 is fixed in the smoke and dust and dissipates the point top, revolving door 2 rotates through hinge 3 and connects both sides around dust excluding hood 1, the mobilizable sliding baffle 4 that sets up in dust excluding hood 1 left side or right side, dust excluding hood 1 forms operation open space or the airtight space of tapping through the rotatory and/or 4 removal of sliding baffle of revolving door 2.

Further, a pulley 6 is installed below the slide shutter 4, and the slide shutter 4 is moved on the rail 5 by the pulley 6.

Further, the swing door 2 is turned 0 to 180 ° by the hinge 3.

Further, the slide damper 4 is rectangular and is formed by welding four steel plates on the front side, the rear side, the upper side and the left side or the right side, and the interior of the slide damper 4 is made of a refractory brick material which can resist high temperature of more than 1500 ℃.

Further, the length of the sliding baffle 4 is consistent with that of the dust hood, the width of the sliding baffle is 1/5-1/2 of the width of the dust hood, and the height of the sliding baffle is the height from the ground below the dust hood.

Further, the length of the rail 5 is 2-5 times the width of the slide damper 4.

Further, the revolving door 2 is hung on the ground through the hinge 3, and at the same time, the sliding flap 4 is moved to the left or right side of the dust hood 1 to form a tapping closed space above the tapping hole.

Further, the revolving door 2 is pulled up parallel to the ground by the hinge 3, and simultaneously the sliding damper 4 is moved to the far side of the dust hood 1 to form an operation open space for manually opening and blocking the iron notch or overhauling the equipment.

Furthermore, the material of the revolving door 2 is a corrugated steel plate 7, and the corrugated steel plate 7 has a wave shape of an open trapezoid.

Furthermore, the depth H of the wave-shaped trapezoid of the corrugated steel plate 7 is 20-50mm, the angle theta is 45-60 degrees, the L is 60-200mm, and the radiation-proof coating is sprayed on both sides of the corrugated steel plate 7. The corrugated steel plate 7 has the advantages that the surface area of the radiation-proof coating can be increased, the thermal radiation diffusion of a taphole is reduced, the thermal environment of a workshop is improved, and the body sensing temperature of an operator is reduced.

When workers perform operations such as opening and plugging iron openings or equipment maintenance, the radiation-proof revolving door can be pulled up by the hinge 3 to be parallel to the ground, and the sliding baffle 4 moves to the far side of the dust hood 1 without influencing the work of the dust hood, as shown in fig. 1; when the iron is normally tapped, the revolving door 2 is put down by the hinge 3 to be vertical to the ground, and the sliding baffle 4 moves to the front of the dust hood 1, as shown in figure 2; the dust hood (1), the revolving door (2) and the sliding baffle (4) form a closed space above the tap hole, so that the air suction volume can be reduced, the energy consumption can be reduced, and the escape of pollutants at dust points can be reduced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a dust collector, its characterized in that, includes dust excluding hood (1), revolving door (2), hinge (3), slide damper (4), track (5), pulley (6), dust excluding hood (1) is fixed in the smoke and dust and dissipates some top, both sides around revolving door (2) rotate through hinge (3) and connect in dust excluding hood (1), dust excluding hood (1) left side or right side mobilizable slide damper (4) that set up, dust excluding hood (1) is opened the space or is gone out the iron airtight space through revolving door (2) rotation and/or slide damper (4) removal formation operation.

2. The dust removing device according to claim 1, wherein: the pulley (6) is installed below the sliding baffle (4), and the sliding baffle (4) moves on the track (5) through the pulley (6).

3. The dust removing device according to claim 1, wherein: the rotating door (2) is turned over for 0-180 degrees through the hinge (3).

4. The dust removing device according to claim 1, wherein: the sliding baffle (4) is cuboid and is formed by welding four steel plates on the front side, the rear side, the upper side and the left side or the right side, and the sliding baffle (4) is internally made of refractory brick materials which can resist the high temperature of more than 1500 ℃.

5. The dust removing device according to claim 4, wherein: the length of the sliding baffle (4) is consistent with that of the dust hood, the width of the sliding baffle is 1/5-1/2 of the width of the dust hood, and the height of the sliding baffle is the height from the lower part of the dust hood to the ground.

6. The dust removing device according to claim 2, wherein: the length of the track (5) is 2-5 times of the width of the sliding baffle (4).

7. The dust removing device according to claim 1, wherein: the revolving door (2) is vertically placed on the ground through the hinge (3), and meanwhile, the sliding baffle (4) moves to the left side or the right side of the dust hood (1) to form a tapping closed space above the tapping hole.

8. The dust removing device according to claim 1, wherein: the revolving door (2) is pulled up through the hinge (3) and is parallel to the ground, and meanwhile, the sliding baffle (4) moves to the far side of the dust hood (1) to form an operation opening space for manually opening and blocking an iron notch or overhauling equipment.

9. The dust removing device according to claim 1, wherein: the revolving door (2) is made of a corrugated steel plate (7), and the corrugated steel plate (7) is in an open trapezoid shape.

10. The dust removing apparatus according to claim 9, wherein: the wave-shaped trapezoid depth H of the corrugated steel plate (7) is 20-50mm, the angle theta is 45-60 degrees, the angle L is 60-200mm, and the radiation-proof coatings are sprayed on the two surfaces of the corrugated steel plate (7).