CN219004100U

CN219004100U - Dust hood

Info

Publication number: CN219004100U
Application number: CN202223216970.4U
Authority: CN
Inventors: 王东生
Original assignee: Beijing Metallurgical Equipment Research Design Institute Co Ltd
Current assignee: Beijing Metallurgical Equipment Research Design Institute Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-12
Anticipated expiration: 2032-11-30

Abstract

The utility model provides a dust hood which comprises a hood body arranged at the lower port of a dust collection pipeline, wherein the hood body is arranged above the side of a production line; the side section of the cover body is triangular; a dust collection opening is formed in one side, close to the production line, of the cover body, an opening and closing door is arranged on the dust collection opening, and the upper side edge of the opening and closing door is rotatably connected with the upper end of the dust collection opening; the dust collection opening is closed by self gravity of the opening and closing door in a closed state; the opening and closing door is obliquely supported right above the production line through a supporting structure in an opening state. The utility model has small occupied space, simple operation, convenient use and high dust collection efficiency.

Description

Dust hood

Technical Field

The utility model relates to the technical field of smoke emission, in particular to a dust hood.

Background

Environmental protection requirements for the industrial field are continuously increased in the modern process, and organized smoke and dust emission in factories is an important part. In the metal rolling line operation process, the rolled piece contains a large amount of dust in the surrounding environment due to high temperature and speed, and great influence is caused on the occupational health and the surrounding environment of workers, so that the rolled piece is required to be purified and then discharged.

In the process of smoke emission treatment, a production line dust hood is generally used for collecting smoke generated in a production line, and then subsequent treatment such as filtration, purification and the like is carried out. The existing dust hood is generally positioned right above the production line, the lower opening is mostly rectangular, and the part of the dust hood adjacent to the branch air pipe is in an inverted funnel shape, so that smoke dust generated in the production line is sucked as much as possible, and the influence on the surrounding production environment is avoided.

However, when the main line of the production line fails, the main line failure result is often expressed as pile of steel, with the rolled piece (steel) arching or running out of the gap between the equipment. The dust hood positioned right above the production line is very easy to accumulate the rolled piece in the dust hood due to the fact that the dust hood fully covers the rolled piece, so that the dust hood can be damaged, and the maintenance of the main rolling line is affected.

In addition, when the main rolling line needs to be overhauled, the main rolling line is usually replaced by two types of specifications (different rolled steel products need to be adjusted) and maintained, only personnel operation is possible to avoid hoisting during maintenance, but a larger space can provide convenience for personnel operation. The dust hood equipped with the existing dust removal system usually occupies large space and is not easy to detach. Therefore, the dust hood arranged right above the production line can not be cleared above the production line during maintenance, and inconvenience is inevitably caused to main line maintenance.

Based on the above, there is a need for improvements to existing suction hoods.

Disclosure of Invention

In view of the above problems, the utility model aims to provide a dust hood, which solves the problems of large occupied space, difficult disassembly and difficult main line overhaul and maintenance in the existing dust hood.

The utility model provides a dust hood, which comprises a hood body arranged at the lower port of a dust collection pipeline, wherein,

the cover body is arranged above the side of the production line;

the side section of the cover body is triangular; a dust collection opening is formed in one side, close to the production line, of the cover body, an opening and closing door is arranged on the dust collection opening, and the upper side edge of the opening and closing door is rotatably connected with the upper end of the dust collection opening;

the dust collection opening is closed by self gravity of the opening and closing door in a closed state; the opening and closing door is obliquely supported right above the production line through a supporting structure in an opening state.

The upper side edge of the opening and closing door is rotatably connected with the upper end of the dust collection opening through a hinge.

Wherein, the optional scheme is that the cover body comprises a pair of right triangle side walls which are parallel to each other, and an inclined side wall, a top wall and a vertical opening wall which are connected between the pair of right triangle side walls; wherein, open the trompil that suits with the inferior port of the said dust collection pipeline on the said roof; the lower port of the dust collection pipeline is communicated with the cover body through the opening.

Wherein, optionally, the vertical opening wall is connected between the right triangle side wall and the top wall, and the upper side of the opening and closing door is rotatably connected with the lower side of the vertical opening wall.

The support structure is a support rod, one end of the support rod is supported on the opening and closing door, and the other end of the support rod is supported on the inclined side wall.

Wherein, optionally, the one end that the bracing piece supported on the oblique lateral wall is rotatable with the oblique lateral wall is connected.

The alternative scheme is that the supporting rod is made of round steel with the diameter larger than 10 mm.

Wherein, alternatively, when the opening and closing door is in an open state, the opening and closing door forms an angle of 45 degrees with the plane of the dust collection opening.

Wherein, the alternative scheme is that a handle is arranged on one surface of the opening and closing door, which is away from the dust collection opening.

The opening and closing door is provided with at least two supporting positioning points, and the opening angle of the opening and closing door is adjusted by the supporting structure through the supporting positioning points.

As can be seen from the above description, the dust hood provided by the utility model has the following beneficial effects:

1) The condition that the dust hood is damaged due to equipment faults is greatly avoided, and a space is left for equipment overhaul and maintenance, so that the operation rate is improved;

2) The utility model has simple operation, the state of the equipment can be changed by opening and closing the door manually by a single person, and compared with the old scheme, the utility model has almost no preparation time when other operations are carried out;

3) In the using process, smoke enters the dust hood from the left, lower and right directions of the dust hood, compared with the existing dust hood with two closed sides, the dust hood has higher dust collection efficiency, and the space occupation of the dust hood is smaller under the same working condition.

Drawings

Other objects and results of the present utility model will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the utility model.

In the drawings:

fig. 1 is a schematic perspective view of a dust hood according to an embodiment of the present utility model;

FIG. 2 is a side view of a suction hood according to an embodiment of the present utility model;

FIG. 3 is a front view of a suction hood according to an embodiment of the present utility model;

FIG. 4 is a top view of a suction hood according to an embodiment of the present utility model;

reference numerals illustrate:

1. the production line rolled piece comprises 2 parts of fixed gap bridge, 3 parts of cover body, 31 parts of dust collection opening, 32 parts of opening and closing door, 322 parts of hinge, 324 parts of handle, 33 parts of right triangle side wall, 34 parts of inclined side wall, 35 parts of top wall, 352 parts of opening and closing door, 36 parts of vertical opening wall, 37 parts of supporting rod, 372 parts of rotatable supporting piece, 374 parts of supporting positioning point, 4 parts of dust collection pipeline.

The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Fig. 1 to 4 show the structure of a suction hood according to an embodiment of the present utility model from different angles. Specifically, fig. 1 is a schematic perspective view of a dust hood according to an embodiment of the present utility model; FIG. 2 is a side view of a suction hood according to an embodiment of the present utility model; FIG. 3 is a front view of a suction hood according to an embodiment of the present utility model; fig. 4 is a top view of a suction hood according to an embodiment of the present utility model.

As shown in fig. 1 to 4 together, the dust hood provided by the utility model mainly comprises a hood body arranged at the lower port of the dust collection pipeline, wherein the hood body is arranged above the side of the production line, and the side section of the hood body is triangular. In the embodiment shown in fig. 1, 1 is a production line rolled piece, a fixed gap bridge 2 is arranged below the production line rolled piece, a cover body 3 is integrally arranged at the upper right of the production line, and a dust collection pipeline 4 is arranged above the cover body 3.

In the embodiment shown in fig. 1, the side section of the cover body is a right triangle, one right-angle side is vertically arranged at the upper right of the production line, and the other right-angle side is fixedly connected with the dust collection pipeline.

Wherein, a dust collection opening 31 is arranged on one side of the cover body 3 close to the production line, an opening and closing door 32 is arranged on the dust collection opening 31, and the upper side edge of the opening and closing door 32 is rotatably connected with the upper end of the dust collection opening 31. The opening and closing door 32 is in a closed state, and the opening and closing door 32 can close the dust collection opening 31 by self gravity of the opening and closing door 32; the opening and closing door 32 can be supported right above the production line in an inclined manner through the supporting structure in an opening state, so that the dust collection opening 31 is opened, and the dust collection cover can generate negative pressure to absorb smoke dust above the production line under the action of the dust collection system.

The dust hood with the structure can close the door during production stoppage or maintenance, so that the clearance above the rolling line is kept, and the maintenance operation and the hoisting operation are not affected. The open-close door is opened in the production process, and the negative pressure between the open-close door and the cavity of the dust hood can enable smoke dust near the rolled piece to enter the pipeline below and at two sides of the dust hood, so that the dust collection efficiency is higher.

The opening and closing door can be made of steel plates made of the same material as the cover body 3.

The upper side of the door 32 may be rotatably connected with the upper end of the dust collection opening 31 through a hinge 322, or may be rotatably connected to the upper side wall of the dust collection opening of the cover body through a latch or other modes or a mode that the door is opened and closed up and down.

The suction hood of fig. 1, the hood body 3 comprises a pair of right triangle side walls 33 parallel to each other, and an inclined side wall 34, a top wall 35 and a vertical opening wall 36 connected between the pair of right triangle side walls 33; wherein, an opening 352 matched with the lower port of the dust collection pipeline 4 is arranged on the top wall 35; the lower port of the dust collection pipe 4 is communicated with the hood body through the opening 352, so that the dust on the production line is sucked through the dust collection hood in the production process.

Wherein, the side of the dust hood facing the production line is partially blocked by the vertical opening wall 36, and the lower end of the vertical opening wall 36 is rotatably connected with the upper end of the opening and closing door. Specifically, the vertical opening wall 36 is connected between the two right triangle side walls 33 and the top wall 35, and the upper side of the opening and closing door 32 is rotatably connected with the lower side of the vertical opening wall 36.

In one embodiment of the utility model, the hood 3 is arranged above the side of the production line, the horizontal distance of the hood 3 from the production line being 150mm. The right angle side length of the right triangle side wall 33 is 800mm and the height of the vertical opening wall 36 is 200mm. The top wall 35 is an isosceles trapezoid with a large front and a small back (one side close to the vertical opening wall 36 is the front), the upper bottom edge of the top wall 35 is 600mm long, the lower bottom edge is 1000mm long, and the diameter of an opening formed on the top wall 35, which is matched with the dust collection pipeline 4, is 530mm; the vertical opening wall 36 and the opening and closing door are also in the shape of an isosceles trapezoid, wherein the upper bottom edge of the vertical opening wall 36 is equal to the lower bottom edge of the top wall 35 in length, also 1000mm, 200mm in height and 1050mm in length; the upper bottom edge of the opening and closing door 32 is 1050mm long, 600mm high, and the lower bottom edge is 1200mm long.

In one embodiment of the present utility model, the support structure is a support bar 37, one end of the support bar 37 is supported on the opening and closing door 32, and the other end is supported on the inclined side wall 34. In the embodiment shown in fig. 1, a support structure is provided. Two supporting structures can be symmetrically arranged on the opening and closing door according to the requirement, so that the opening and closing door cannot incline due to the asymmetry of the supporting points when the opening and closing door is supported.

In one embodiment of the present utility model, one end of the support rod 37 supported on the inclined sidewall 34 is rotatably connected to the inclined sidewall 34, and the other end is supported at a preset position of the opening and closing door in a propping manner. In order to flexibly adjust the opening and closing angle of the opening and closing door, a plurality of supporting positioning points can be arranged on the side edge of the opening and closing door. Specifically, as an example, a rotatable supporting member 372 is fixedly provided on the inclined side wall 34, a plurality of supporting positioning points 374 are provided on the opening and closing door, one end of the supporting rod 37 is fixedly connected with the rotatable supporting member 372, and the other end is supported on the supporting positioning points 374. One of the supporting positioning points can maximize the opening angle of the opening and closing door (such as the middle supporting positioning point), and when the supporting structure is supported at the other supporting positioning points, the opening angle of the opening and closing door is smaller. The support structure adjusts the opening angle of the opening and closing door by adjusting the position of the support positioning point.

In addition, the supporting structure can be designed into a supporting structure with telescopic adjustment length, such as a telescopic rod, and the opening angle of the opening and closing door can be adjusted by adjusting the length of the supporting structure.

The support rod is too thin and can deform during use under high temperature conditions, so in one embodiment of the utility model, the support rod is round steel with a diameter of more than 10 mm. In the embodiment shown in fig. 1, the length of the supporting rod is 500mm, and in the open state of the door, the door forms an angle of 45 degrees with the plane of the dust collection opening.

To facilitate opening the door, a handle 324 may also be provided on the side of the door facing away from the dust collection opening. The handle 324 may be welded to the door 32 or may be bolted to the door. In addition, an anti-skid sleeve can be arranged on the handle, so that the use is convenient.

According to the technical scheme, the dust hood provided by the utility model has the advantages that the front side view is triangular, and the rear side view is nearly parallelogram; the dust hood is positioned above the side of the production line when positioned, so that clearance can be achieved right above the production line, and other operations are not influenced; the opening and closing door and the cover body form a dust collection channel together after being opened. And the opening and closing door of the dust hood is supported and fixed by using the support rod after being opened, the opening angle of the dust hood can be adjusted by adjusting the fixed position of the upper end of the support rod on the opening and closing door, and the dust collection effect is controlled. And moreover, the operating personnel can change the state of equipment by manually opening and closing the door, so that the dust hood is convenient to use, dust can enter the dust hood from the left, lower and right directions of the dust hood in the using process of the dust hood by adopting the design, and the dust hood has higher efficiency compared with the existing dust hood with two closed sides and occupies smaller space under the same working condition.

The suction hood of the present utility model is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the suction hood set forth above without departing from the teachings of the present utility model. Accordingly, the scope of the utility model should be determined from the following claims.

Claims

1. The utility model provides a dust hood, includes the cover body of setting at the lower port of dust absorption pipeline, its characterized in that:

the cover body is arranged above the side of the production line;

2. The suction hood of claim 1 wherein the upper side of the opening and closing door is pivotally connected to the upper end of the suction opening by a hinge.

3. The suction hood of claim 2 wherein said hood body includes a pair of right triangle side walls parallel to each other and diagonal side walls, a top wall and a vertical opening wall connected between the pair of right triangle side walls; wherein,,

an opening matched with the lower port of the dust collection pipeline is formed in the top wall; the lower port of the dust collection pipeline is communicated with the cover body through the opening.

4. A suction hood according to claim 3 wherein said vertical opening wall is connected between said right triangle side wall and said top wall and wherein an upper side of said opening and closing door is rotatably connected with a lower side of said vertical opening wall.

5. The suction hood of claim 4 wherein the support structure is a support bar having one end supported on the opening and closing door and the other end supported on the sloped side wall.

6. The suction hood of claim 5 wherein an end of the support bar supported on the sloped side wall is rotatably connected to the sloped side wall.

7. The suction hood of claim 5 wherein the support bar is round steel having a diameter greater than 10 mm.

8. The suction hood according to any one of claims 1 to 7 wherein the door is in an open position, the door being at an angle of 45 degrees to the plane of the suction opening.

9. A suction hood according to any one of claims 1 to 7, wherein a handle is provided on a side of the door facing away from the suction opening.

10. The suction hood according to any one of claims 1 to 7, wherein at least two supporting positioning points are provided on the opening and closing door, and the supporting structure adjusts an opening angle of the opening and closing door by the supporting positioning points.