CN222680322U - Portable cutting machine smoke and dust collection device - Google Patents

Abstract

The utility model provides a smoke dust collecting device of a mobile cutting machine, which comprises a dust hood with a travelling castor, a sliding air pipe with an upper opening, a sliding air suction assembly which slides on the sliding air pipe and is communicated with the opening side of the sliding air pipe, and a dust suction pipe which is communicated with the dust hood and the sliding air suction assembly, wherein the sliding air suction assembly comprises an air hood which is connected with the sliding air pipe in a sliding manner and a sealing belt which is sealed on the opening of the sliding air pipe and is arranged between the sliding air pipe and the air hood, four compression rollers are connected in the air hood in an axial manner, the sealing belt is designed in a shape of a Chinese character 'ji', the air hood is designed in an inverted trapezoid, an inclined surface of the air hood is a guide plate and is used for guiding air into the sliding air pipe, and one end of the sliding air pipe is communicated with a dust removing device. Through the guide plate of the wind suction cover, air is guided into the sliding air pipe to form a side suction type air duct, so that the resistance of air flow entering the sliding air pipe is reduced, the efficiency of smoke dust collection is improved, the power of a dust removal fan is reduced, and the energy is saved.

Description

Portable cutting machine smoke and dust collection device

Technical Field

The utility model relates to the field of dust removal and air purification, in particular to a smoke dust collecting device of a movable cutting machine.

Background

Current situation of smoke and dust treatment of the mobile plasma steel plate cutting machine and the mobile flame steel plate cutting machine in the prior industrial field is that:

At present, most of cutting smoke dust collection of a plasma steel plate cutting machine and a flame steel plate cutting machine adopts a ① blowing-sucking type collection method ② side-sucking type collection method ③ air door type collection ④ wet type collection method.

Blowing and sucking type collection

The dust removing mode is that a sliding air duct is arranged on one side of a cutting platform of the cutting machine, and an air suction inlet which can move along with the cutting machine is arranged on the sliding air duct. The sliding air duct is covered with a sealing belt, and the movable air suction port is communicated with the sliding air duct. The other side of the cutting platform is provided with a blowing port with an axial flow fan, and the blowing port and the suction port are simultaneously fixed on the cutting machine and are kept in a straight line with the cutting head. The flue dust enters the air suction port along the grid space by utilizing an air flue formed by the grid plate of the cutting platform and the steel plate covered on the grid plate, and then enters the sliding air flue and the dust remover through the air suction port, and is discharged after being filtered and purified.

Side suction type collection

The dust removing mode is to place a sliding air duct on two sides of the cutting platform respectively, and an air suction inlet capable of moving along with the cutting machine is arranged on the cutting platform respectively. The sliding air duct is covered with a sealing belt, the movable air suction port is communicated with the sliding air duct, an air duct formed by a grid plate of the cutting platform and a steel plate covered on the movable air suction port is utilized, after the system is started, smoke dust enters the air suction port along a grid space, and then enters the air duct and the dust remover through the air suction port, and is discharged after filtration and purification.

Disadvantages and drawbacks of the suction-type collection process and the side-suction type collection process:

(1) Because the side-suction type dust collection is adopted, the dust in the grid plate of the cutting area is mainly collected, namely the dust below the workpiece steel plate, the dust above the workpiece steel plate and the dust outside the dust collection opening cannot be collected, the escape of the dust is serious, the treatment effect is poor, and most of the dust collection equipment is abandoned after being used for 1-2 years, so that the investment waste is caused.

(2) The dust removal effect depends on the coverage rate of the steel plates on the cutting platform, and when the steel plates on the cutting platform cannot be fully paved or gaps arranged between the steel plates are large, smoke dust can largely escape from two sides or the gaps, so that the trapping efficiency is greatly reduced.

(3) The side suction belongs to the downdraft type, and the waste residue with larger particles during steel plate cutting can be brought into the air duct, so that the air duct is easy to block and block, and the service life of the filter element of the dust remover can be greatly shortened.

(4) Arc radiation and noise pollution remediation are not involved.

(5) The size of the cutting platform is limited, namely the blowing-sucking type dust removing mode is only suitable for the cutting platform with the width of less than 4.5m, and the effect is poorer when the width is larger.

Air door type collection

The cutting platform is divided into a plurality of spaces with the same width along the length direction, and each space is provided with an air door, an air door control mechanism (air cylinder), an ash bucket and an inductive switch. When the cutting machine approaches the induction switch, the cylinder piston rod drives the air door to open, smoke dust in the space enters the air duct from the air door, and then enters the air purification device from the air duct, and is discharged after being treated and purified.

Air door type collecting defects and shortages

(1) The air door, the air cylinder and the sensor assembly are more, the fault points are more, and the maintenance is inconvenient;

(2) Sundries such as iron slag and the like in the air door the influence is easy to close and is not tight, the air leakage is serious, and the cleaning is time-consuming and labor-consuming;

(4) Under the condition of the same track gauge, compared with a blowing-sucking type dust removing system and a side-sucking type dust removing system, the effective use area of the cutting platform is increased, but the air extraction quantity and the energy consumption are also relatively increased;

(5) No arc radiation and noise pollution abatement are involved;

(6) The smoke dust in the grid plate of the cutting area is mainly collected, namely, the smoke dust below the cutting steel plate, and the smoke dust above and the smoke dust outside the dust collection opening cannot be collected.

Wet collection method

The wet treatment method is that a water bed is added on a cutting platform of a plasma cutting machine, a workpiece is placed into water during cutting, the workpiece is completely cut under water, harmful substances generated during cutting are trapped by the water, ultraviolet radiation and noise can be reduced, the initial investment of the treatment method is small, the application is not too much at present, and the following defects and shortcomings mainly exist:

(1) Water pollution is caused, waste water is formed, and the production cost is necessarily increased when the waste water is treated;

(2) In cold winter, the northern area is easy to freeze, and the production of enterprises is affected;

(3) Cutting speed is 10% slower than dry;

(4) Underwater cutting is not beneficial to observing the cutting torch and the cutting situation, and cutting abnormality is easy to occur;

(5) The wet collecting method is not suitable for cutting metals such as aluminum, magnesium and the like;

(6) After the pretreated steel plate is cut under water, the incision can rust for the second time.

Therefore, the utility model needs to solve the problems of low collection rate of cutting smoke dust, large transmission resistance after collection and the like caused by the moving operation of the movable type plasma steel plate cutting machine and the flame steel plate cutting machine in the heavy industry field.

Disclosure of utility model

The utility model discloses a smoke dust collecting device of a movable cutting machine, which is used for solving the related technical problems in the background technology.

The utility model provides a smoke dust collecting device of a mobile cutting machine, which comprises a dust hood with a travelling castor, a sliding air pipe with an upper opening, a sliding air suction assembly which slides on the sliding air pipe and is communicated with the opening side of the sliding air pipe, and a dust suction pipe which is communicated with the dust hood and the sliding air suction assembly;

The sliding air suction assembly comprises an air suction cover which is connected to the sliding air pipe in a sliding way and a sealing belt which is sealed on the opening of the sliding air pipe and between the sliding air pipe and the air suction cover, wherein four compression rollers are connected to the inner shaft of the air suction cover, the sealing belt is designed in a shape of a Chinese character 'ji', and the air suction cover is designed in an inverted trapezoid, and the inclined surface of the air suction cover is a guide plate for guiding air into the sliding air pipe;

One end of the sliding air pipe is communicated with the dust removing device.

In one embodiment, the dust hood is composed of a polycarbonate plate and a metal bracket.

In one embodiment, the dust hood is provided with a viewing window and a sliding door.

In one embodiment, the top of the dust hood is separated into a negative pressure bin through a mesh plate, a rectangular air pipe communicated with the dust suction pipe is arranged in the negative pressure bin, and a dust suction port is formed in the side of the rectangular air pipe.

In one embodiment, the rectangular air pipe is communicated with the dust suction pipe through an air pipe elbow.

In one embodiment, an electrically operated valve is provided between the suction tube and the sliding air suction assembly.

In one embodiment, sliding rails are respectively arranged on two sides of the sliding air pipe, and the air suction cover is connected to the sliding rails in a sliding manner through sliding blocks.

In one embodiment, the sliding air duct is in a bridge or sink type.

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

(1) According to the mobile smoke dust collecting device of the cutting machine, the wind suction cover is of an inverted trapezoid design, and air is guided into the sliding air pipe through the inclined guide plate of the wind suction cover, so that the side suction type air flue is formed, the resistance of air flow entering the sliding air pipe is reduced, the smoke dust collecting efficiency is improved, the power of the dust removing fan is reduced, and the energy is saved.

(2) According to the smoke dust collecting device of the mobile cutting machine, the negative pressure bin is formed by separating the top of the dust hood through the mesh plate, the negative pressure bin can achieve uniform air suction quantity of each point at the mesh plate in the hood, the problems that smoke dust in partial areas cannot be discharged due to uneven upward suction wind force in the hood are solved, therefore, when the smoke dust rises due to self lifting force, uniform upward suction force is provided by the negative pressure bin, the smoke dust collecting efficiency can be improved, an ideal effect can be achieved with smaller air quantity, and energy is saved.

(3) According to the mobile type smoke dust collecting device for the cutting machine, the dust hood with the travelling casters and the sliding air suction assembly are arranged, so that when the dust hood and the cutting machine synchronously move, the beneficial effects of collecting and conveying smoke dust in a moving state can be guaranteed, and the problem that the dust cannot be collected and conveyed due to moving operation is solved.

Drawings

FIG. 1 is a schematic view of an embodiment of a smoke collection device of the present utility model;

FIG. 2 is a schematic view of another embodiment of the smoke collection device of the present utility model;

FIG. 3 is an enlarged view of a portion of the smoke collection device of the present utility model;

FIG. 4 is a cross-sectional view of a suction hood in accordance with the present utility model;

FIG. 5 is a schematic view of the external structure of the sliding wind suction assembly according to the present utility model;

FIG. 6 is a schematic view of the internal structure of the sliding wind absorbing assembly in the present utility model.

The air suction device comprises the following components of a dust suction hood, an observation window, a sliding door, a sliding air pipe, a sliding rail, a sliding air suction assembly, a sliding air suction hood, a sealing belt, a sealing roller, a guide plate, a sliding block, a dust suction pipe, a mesh plate, a negative pressure bin, a rectangular air pipe, a dust suction opening, an air pipe elbow and an electric valve.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.

Example 1

As shown in figures 1-6, the utility model relates to a smoke dust collecting device of a mobile cutting machine, which comprises a dust hood 1, a sliding air pipe 2, a sliding air suction assembly 3, a dust suction pipe 4 and a dust removing device. The dust hood 1 is of a hood-shaped structure with an opening at the bottom, covers a movable cutting machine, the bottom of the dust hood 1 is provided with a travelling castor and can synchronously move along with the cutting machine, the sliding air pipe 2 is of a U-shaped structure with an opening at the top, one end of the sliding air pipe is communicated with the dust removing device, the sliding air suction assembly 3 is connected onto the sliding air pipe 2 in a sliding manner, the opening at the top of the sliding air pipe 2 is sealed, the other side of the sliding air suction assembly 3 is communicated with the dust hood 1, a suction port is arranged on the side surface of the top of the dust hood 1, an up-draught structure is formed, the natural rising rule of smoke dust is met, the ideal effect can be achieved with smaller air quantity of a fan, and energy is saved. Through setting up suction hood 1 and slip wind subassembly 3 that have the walking truckle, when suction hood 1 and cutting machine synchronous movement, can guarantee that the device can realize smoke and dust entrapment and the beneficial effect who carries under the mobile state, solved because of the removal operation, unable entrapment and the problem of transportation. Specific:

The dust hood 1 adopts galvanized steel pipes or aluminum alloy as a framework, and a polycarbonate plate is used as a surrounding to form a hood-type structure with an opening at the bottom, so that the polycarbonate plate has high strength and light weight, and the effects of sound insulation, noise reduction and arc light ultraviolet blocking are achieved.

The sliding air suction assembly 3 comprises an air suction cover 31, a sealing belt 32 and press rollers 33, wherein sliding rails 21 are respectively arranged on two sides of the sliding air pipe 2, the air suction cover 31 is connected to the sliding rails 21 in a sliding mode through sliding blocks 35, the sealing belt 32 is sealed on an opening of the sliding air pipe 2, specifically, four press rollers 33 are axially connected to the inner side of the air suction cover 31, two press rollers 33 are arranged on the upper side, two press rollers 33 are arranged below the air suction cover, the sealing belt 32 bypasses the press rollers 33 and is designed in a shape like a Chinese character 'ji', the sealing belt 32 outside the air suction cover 31 is sealed on the sliding air pipe 2, the sealing belt 32 in the upper side is far away from the sliding air pipe 2, the air suction cover 31 is communicated with the sliding air pipe 2, the inclined surface of the air suction cover 31 is a guide plate 34 used for guiding air into the sliding air pipe 2, smoke dust enters the air suction cover 31 along with negative pressure air flow, the inclined surface of the air suction cover 31 is enabled to move to the inclined surface of the sliding air pipe 2, and the sealing belt 32 is enabled to be still communicated with the sliding air pipe 2 when the sliding air suction cover 31 is always in the shape like a Chinese character 'ji', and the sealing belt 32 is enabled to move along with the sliding air pipe 2. The wind suction cover 31 is of an inverted trapezoid design, and air is guided into the sliding air pipe 2 through the guide plate 34 to form a side suction type air channel, so that the resistance of air flow entering the sliding air pipe 2 is reduced, the efficiency of smoke dust collection is improved, the power of a dust removal fan is reduced, and energy is saved.

The dust hood 1 of the embodiment is provided with an observation window 11 and a sliding door 12, the sliding doors 12 are respectively arranged on the front side and the rear side of the dust hood 1, so that the operation and the overhaul are facilitated, and the observation window 11 is arranged on the side of the operating table of the cutting machine, so that an operator can conveniently observe the working state of the cutting machine.

In this embodiment, an electric valve 9 is disposed between the dust suction pipe 4 and the sliding air suction component 3, when the dust suction operation starts, the electric valve 9 is opened, and the smoke passes through the dust suction pipe 4, the electric valve 9 and the sliding air suction component, and then enters the dust remover through the sliding air pipe 2, and is filtered and purified and then discharged.

The sliding air pipe 2 is of a sinking type as shown in fig. 1, the sliding air pipe 2 is of a bridge type as shown in fig. 2, and the two structures can be selected according to the actual situation of the site.

Example 2

The embodiment 2 is completed on the basis of the embodiment 1, as shown in fig. 4, the structure of the negative pressure bin 6 at the top is added on the basis of the embodiment 1, and the cutting smoke dust rapidly enters the negative pressure bin 6 at the top due to self lifting force and suction force, so that rapid and effective collection of the smoke dust is realized. Specific:

The top in the dust hood 1 separates negative pressure bin 6 through mesh board 5, be equipped with in the negative pressure bin 6 with the rectangle tuber pipe 7 of dust absorption pipe 4 intercommunication, the dust absorption mouth 71 has been seted up to rectangle tuber pipe 7 side, rectangle tuber pipe 7 with through tuber pipe elbow 8 intercommunication between the dust absorption pipe 4, negative pressure bin 6 can realize that the cover mesh board department each point induced draft volume is even, solves in the cover because of the uneven, problem that partial regional smoke and dust can't be discharged of updraft wind force. Therefore, when the smoke rises due to the self lifting force, the negative pressure bin 6 provides uniform upward suction force, so that the efficiency of smoke trapping can be improved, the ideal effect can be achieved with smaller air quantity, and the energy is saved.

When the cutting work is started, the dust hood 1 and the cutting machine synchronously move, the dust removing device starts to work, the negative pressure state is quickly formed in the dust hood 1 due to the negative pressure bin 6, the cutting smoke dust enters the air hood 31 through the rectangular air pipe 7, the air pipe elbow 8, the dust collection pipe 4 and the electric valve 9 due to the suction force of the self-lifting wind, is guided into the sliding air pipe 2 by the guide plate 34, enters the dust remover by the sliding air pipe 2, and is discharged after being filtered and purified.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (8)

1. The dust collection device of the mobile cutting machine is characterized by comprising a dust hood (1) with a travelling castor, a sliding air pipe (2) with an upper opening, a sliding air suction assembly (3) which slides on the sliding air pipe (2) and is communicated with the opening side of the sliding air pipe (2), and a dust collection pipe (4) which is communicated with the dust hood (1) and the sliding air suction assembly (3);

The sliding air suction assembly (3) comprises an air suction cover (31) which is connected to the sliding air pipe (2) in a sliding manner, and a sealing belt (32) which is sealed on an opening of the sliding air pipe (2) and is arranged between the sliding air pipe (2) and the air suction cover (31), wherein four compression rollers (33) are axially connected to the air suction cover (31), the sealing belt (32) bypasses the compression rollers (33) and is in a shape of a Chinese character 'ji', the air suction cover (31) is in a reverse trapezoid, and an inclined surface of the air suction cover is a guide plate (34) for guiding air into the sliding air pipe (2);

one end of the sliding air pipe (2) is communicated with the dust removing device.

2. A mobile cutter dust collector as claimed in claim 1, characterized in that the dust hood (1) is formed by a polycarbonate plate and a metal bracket.

3. A mobile cutter dust collecting device according to claim 1, characterized in that the dust hood (1) is provided with an observation window (11) and a sliding door (12).

4. The mobile cutting machine smoke dust collecting device according to claim 1, wherein a negative pressure bin (6) is separated from the inner top of the dust hood (1) through a mesh plate (5), a rectangular air pipe (7) communicated with the dust suction pipe (4) is arranged in the negative pressure bin (6), and a dust suction opening (71) is formed in the side of the rectangular air pipe (7).

5. A mobile cutter dust collector as claimed in claim 4, characterized in that the rectangular air duct (7) is connected to the dust suction duct (4) via an air duct bend (8).

6. A mobile cutter dust collecting device according to claim 1, characterized in that an electrically operated valve (9) is arranged between the dust suction pipe (4) and the sliding wind suction assembly (3).

7. A mobile cutting machine smoke dust collecting device according to claim 1, wherein sliding rails (21) are respectively arranged on two sides of the sliding air pipe (2), and the air suction cover (31) is connected to the sliding rails (21) in a sliding manner through sliding blocks (35).

8. A mobile cutter dust collector as claimed in claim 1, wherein the sliding duct (2) is of the bridge or sink type.