Semi-closed dust production working area dust removal device based on air curtain dust blocking

Abstract

The utility model discloses a dust removal device for a semi-closed dust production working area based on air curtain dust blocking, relates to the technical field of industrial dust removal, and provides the following scheme that the dust removal device comprises the semi-closed dust production working area, a dust suction opening is formed in the upper end of the semi-closed dust production working area, and a dust suction mechanism is connected to the upper end of the dust suction opening; an outlet is formed in one side of the semi-closed dust production working area, an air curtain retaining wall is arranged at the top end of the outlet, an air conveying pipeline is fixed to the inner wall of the air curtain retaining wall, air spraying heads are fixed to the air conveying pipeline at equal intervals, and the air outlet ends of the air spraying heads are connected with nozzles. The other end of the gas conveying pipeline extends to the outside of the semi-closed dust production working area and is connected to the air outlet end of the air compressor, and a dust detection mechanism is fixed to the outer wall of the air curtain retaining wall. According to the utility model, the air volume of the dust remover can be dynamically regulated and controlled according to the concentration of the overflowed dust volume, so that the dust removal efficiency is improved, the energy consumption is reduced, the production cost is reduced and the service life of the dust remover is prolonged on the premise of effectively controlling the dust overflow.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial dust removal technical field especially relates to a dust removal device of semi-closed dust production work area based on gas curtain dust prevention. BACKGROUND

[0002] With the continuous improvement of environmental protection requirements, the production processes such as casting (melting, casting, sanding, sand regeneration, shot blasting, sanding, shot blasting, etc.), welding, cleaning, etc. with large dust production are facing huge air pollution control pressure. The characteristics of this part of the production process are that the working area is a single opening semi-closed working area (hereinafter referred to as semi-closed dust production working area). The semi-closed dust production working area is generally provided with a roof, three of the four vertical surfaces are closed walls for preventing dust overflow, and one surface is left open to communicate with the area outside the working area to facilitate the transportation of workpieces inside and outside the working area and prevent the working area from affecting the health of workers due to the large negative pressure generated by the dust removal system.

[0003] The dust removal method for the semi-closed dust production working area in the prior art is to set a convex dust collecting hood on the top of the working area near the opening side, the top and side of the dust collecting hood are provided with openings connected with the dust removal pipeline, the other side of the dust removal pipeline is connected with a dust remover, the dust remover uses a fan and a dust removal pipeline to generate negative pressure in the dust collecting hood, which promotes the movement of working dust to the dust collecting hood under the action of pressure difference, and a filter system is arranged in the dust remover to filter out the inhaled dust, thereby realizing dust removal.

[0004] The main problems existing in the prior art are:

[0005] 1. Poor dust removal effect: In order to facilitate the transportation of workpieces, mechanical barriers cannot be installed at the opening of the semi-closed dust production working area. When the dust production is large, the dust will seriously overflow through the opening and pollute the working environment due to insufficient negative pressure and flow of the dust removal system.

[0006] 2. Large energy consumption of the dust removal system: Taking the casting sanding working area of a factory in northern China as an example, the dust removal system uses two sets of 60KW fans, and both sets of fans are started during work. However, due to the influence of production process, production plan, etc., the dust production in the working area is not constant, which leads to large energy waste when the dust production is small.

[0007] Therefore, the present application provides a dust removal device for semi-closed dust production working area based on gas curtain dust prevention. Utility model content

[0008] The dust removal device for the semi-closed dust production working area based on the air curtain dust prevention can dynamically control the air volume of the dust remover according to the concentration of the overflowed dust, improve the dust removal efficiency under the premise of effectively controlling the dust overflow, reduce the energy consumption, lower the production cost, and prolong the service life of the dust remover, and overcomes the defects of the prior art.

[0009] In order to achieve the above object, the utility model adopts the following technical scheme:

[0010] A dust removal device for a semi-closed dust production working area based on an air curtain dust prevention, comprising a semi-closed dust production working area, a dust suction port is arranged at the upper end of the semi-closed dust production working area, a dust suction mechanism is connected to the upper end of the dust suction port, an outlet is arranged on one side of the semi-closed dust production working area, a wind curtain barrier wall is arranged at the top end of the outlet, a gas conveying pipeline is fixed to the inner wall of the wind curtain barrier wall, air jet heads are fixed at equal intervals on the gas conveying pipeline, a nozzle is connected to the air outlet end of the air jet head, one end of the gas conveying pipeline extends to the outside of the semi-closed dust production working area and is connected to the air outlet end of an air compressor, a dust detection mechanism is fixed to the outer wall of the wind curtain barrier wall, and a controller is fixed to the outer wall of the semi-closed dust production working area.

[0011] As a further scheme of the utility model: the dust suction mechanism comprises a dust collecting cover fixed to the upper end of the dust suction port, a dust collecting pipeline is connected to the upper end of the dust collecting cover, and one end of the dust collecting pipeline is connected to the dust remover body.

[0012] As a further scheme of the utility model: the dust detection mechanism comprises a dust concentration detection sensor fixed to the outer wall of the wind curtain barrier wall, and a protective cover is arranged outside the dust concentration detection sensor.

[0013] As a further scheme of the utility model: the detection head of the dust concentration detection sensor extends to the outside of the protective cover.

[0014] As a further scheme of the utility model: a fixing seat is arranged on the outer wall of the wind curtain barrier wall and below the dust concentration detection sensor, an electric push rod is fixed to one side of the fixing seat, a cleaning plate is connected to one end of the electric push rod, and a sponge block is fixed to one side of the cleaning plate.

[0015] As a further scheme of the utility model: a water tank is fixed to one side of the upper end of the semi-closed dust production working area, a water pump is fixed to the outer wall of the water tank, a water suction pipe is connected to the water suction end of the water pump, one end of the water suction pipe is connected to the bottom of the water tank, a water outlet pipe is connected to the water outlet end of the water pump, a water jet head is connected to one end of the water outlet pipe, and the water jet head is arranged on one side of the detection head of the dust concentration detection sensor.

[0016] As a further scheme of the utility model: the flow regulating valve is installed on the gas pipeline, the flow regulating valve, the dust remover body and the dust concentration detection sensor are electrically connected with the controller.

[0017] As a further scheme of the utility model: the display screen and the control button are integrally installed on the controller.

[0018] As a further scheme of the utility model: the wind baffle is provided with an arc-shaped flow guide part on the top of the side towards the semi-closed dust generating working area.

[0019] As a further scheme of the utility model: the wind baffle is provided with a connecting lug plate at both ends.

[0020] The utility model has the advantages of:

[0021] 1. Dust remover air volume can be dynamically controlled according to the concentration of overflow dust, dust removal efficiency can be improved under the premise of effectively controlling dust overflow, energy consumption can be reduced, production cost can be lowered, and dust remover service life can be prolonged.

[0022] 2. The actual problem that mechanical baffle cannot be set is solved by the special air curtain baffle technology, dust overflow can be prevented under the premise of not affecting production rhythm. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a first perspective three-dimensional structure schematic view of a semi-closed dust generating working area dust removal device based on air curtain dust prevention.

[0024] Figure 2 It is a second perspective three-dimensional structure schematic view of a semi-closed dust generating working area dust removal device based on air curtain dust prevention.

[0025] Figure 3 It is a third perspective three-dimensional structure schematic view of a semi-closed dust generating working area dust removal device based on air curtain dust prevention.

[0026] Figure 4 It is a fourth perspective three-dimensional structure schematic view of a semi-closed dust generating working area dust removal device based on air curtain dust prevention.

[0027] Figure 5 It is a wind baffle structure schematic view of a semi-closed dust generating working area dust removal device based on air curtain dust prevention.

[0028] Figure 6 A local structure schematic view of a dust removal device of a semi-closed dust production working area based on air curtain dust prevention is provided for the utility model.

[0029] Figure 7 A local structure schematic view of a dust removal device of a semi-closed dust production working area based on air curtain dust prevention is provided for the utility model. Figure 1 An enlarged structure schematic view of position A in the middle.

[0030] Figure 8 An enlarged structure schematic view of position B in the middle. Figure 4 An enlarged structure schematic view of position B in the middle.

[0031] In the figure: 1, semi-closed dust production working area; 2, air compressor; 3, gas conveying pipeline; 4, wind baffle; 5, fixing base; 6, electric push rod; 7, cleaning plate; 8, wind curtain baffle wall; 9, outlet; 10, dust collecting cover; 11, dust collecting pipeline; 12, dust remover body; 13, flow regulating valve; 14, water outlet pipe; 15, water tank; 16, protective cover; 17, dust concentration detection sensor; 18, water spraying head; 19, controller; 20, arc-shaped flow guiding part; 21, sponge block; 22, water pump; 23, water suction pipe; 24, air jet head; 25, nozzle; 26, dust suction port; 27, connecting lug plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0033] Embodiment 1, refer to Figures 1-4 A dust removal device of a semi-closed dust production working area based on air curtain dust prevention, including semi-closed dust production working area 1, its characterized in that, the upper end of semi-closed dust production working area 1 is provided with dust suction port 26, the upper end of dust suction port 26 is connected with dust suction mechanism, one side of semi-closed dust production working area 1 is provided with outlet 9, the top of outlet 9 is provided with wind curtain baffle wall 8, the inner wall of wind curtain baffle wall 8 is fixed with gas conveying pipeline 3, air jet head 24 is fixed on gas conveying pipeline 3 at equal distance, the air outlet end of air jet head 24 is connected with nozzle 25, one end of gas conveying pipeline 3 extends to the outside of semi-closed dust production working area 1 and is connected to the air outlet end of air compressor 2, the outer wall of wind curtain baffle wall 8 is fixed with dust detection mechanism, the outer wall of one side of semi-closed dust production working area 1 is fixed with controller 19.

[0034] Dust suction mechanism includes dust collecting cover 10 fixed on the upper end of dust suction port 26, the upper end of dust collecting cover 10 is connected with dust collecting pipeline 11, one end of dust collecting pipeline 11 is connected to dust remover body 12.

[0035] The dust detection mechanism comprises a dust concentration detection sensor 17 fixed to the outer wall of the air curtain barrier wall 8, the outer cover of the dust concentration detection sensor 17 is provided with a protective cover 16, and the detection head of the dust concentration detection sensor 17 extends to the outside of the protective cover 16.

[0036] An fixing seat 5 is mounted to the outer wall of the air curtain barrier wall 8 and located below the dust concentration detection sensor 17, one side of the fixing seat 5 is fixed with an electric push rod 6, one end of the electric push rod 6 is connected with a cleaning plate 7, and one side of the cleaning plate 7 is fixed with a sponge block 21.

[0037] A water tank 15 is fixed to one side of the upper end of the semi-closed dust generating working area 1, a water pump 22 is fixed to the outer wall of the water tank 15, the water suction end of the water pump 22 is connected with a water suction pipe 23, one end of the water suction pipe 23 is connected with the bottom of the water tank 15, the water outlet end of the water pump 22 is connected with a water outlet pipe 14, one end of the water outlet pipe 14 is connected with a water spraying head 18, and the water spraying head 18 is located at one side of the detection head of the dust concentration detection sensor 17.

[0038] The water pump 22 and the electric push rod 6 are started regularly, so that the water spraying head 18 sprays water to the detection head of the dust concentration detection sensor 17, the cleaning plate 7 is driven to move back and forth by the extension and retraction of the electric push rod 6, the sponge block 21 is used to wash and wipe the detection head of the dust concentration detection sensor 17, the detection head of the dust concentration detection sensor 17 is kept clean, and the inaccuracy of the detection data is avoided.

[0039] The flow regulating valve 13 is mounted on the gas conveying pipeline 3, the flow regulating valve 13, the dust remover body 12 and the dust concentration detection sensor 17 are electrically connected with the controller 19, and the display screen and the control buttons are integrally installed on the controller 19.

[0040] The high-speed airflow is blown out from the outlet 9 through the air jet head 24, so that an air curtain is formed at the outlet, meanwhile, whether there is dust overflow at the outlet 9 is detected by the dust concentration detection sensor 17, the controller 19 receives the signal transmitted from the dust concentration detection sensor 17, and the frequency conversion control of the dust remover body 12 and the adjustment of the flow regulating valve 13 are realized according to the signal, when there is no dust overflow, the real-time airflow of the dust remover body 12 is automatically reduced or the flow adjustment of the flow regulating valve 13 is reduced, when the dust detection device 5 detects that there is dust overflow, the dust remover body 12 is automatically started or the real-time airflow of the dust remover 2 is increased and the flow adjustment of the flow regulating valve 13 is increased, so that the energy consumption is saved under the premise that there is no dust overflow.

[0041] In the embodiment 2, the embodiment 1 is optimized, and specifically:

[0042] The outer wall of the semi-closed dust generating working area 1 and the bottom end of the outlet 9 are provided with a wind blocking strip 4, the wind blocking strip 4 is provided with an arc-shaped flow guiding part 20 towards the top of one side of the semi-closed dust generating working area 1, and both ends of the wind blocking strip 4 are provided with connecting lug plates 27.

[0043] The arc-shaped flow guiding part 20 of the wind blocking strip 4 can guide the wind curtain to the inside of the semi-closed dust generating working area 1, so that the dust enters the dust collecting cover 10, and the wind curtain is prevented from blowing to the outside of the semi-closed dust generating working area 1 to take out the dust.

[0044] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A dust removal device based on the gas curtain dust blocking for semi-closed dust production work area, comprising a semi-closed dust production work area (1), characterized in that, The upper end of the semi-closed dust production working area (1) is provided with a dust suction port (26), the upper end of the dust suction port (26) is connected with a dust suction mechanism, one side of the semi-closed dust production working area (1) is provided with an outlet (9), the top end of the outlet (9) is provided with a wind curtain barrier wall (8), the inner wall of the wind curtain barrier wall (8) is fixed with a gas conveying pipeline (3), the gas conveying pipeline (3) is fixed with a gas jet head (24) at equal intervals, the gas outlet end of the gas jet head (24) is connected with a nozzle (25), one end of the gas conveying pipeline (3) extends to the outside of the semi-closed dust production working area (1) and is connected to the gas outlet end of the air compressor (2), the outer wall of the wind curtain barrier wall (8) is fixed with a dust detection mechanism (A), and the outer wall of one side of the semi-closed dust production working area (1) is fixed with a controller (19).

2. A semi-enclosed dust generating work area dust extraction device based on gas curtain dust suppression according to claim 1, characterized in that, The dust suction mechanism comprises a dust collecting cover (10) fixed at the upper end of the dust suction port (26), and the upper end of the dust collecting cover (10) is connected with a dust collecting pipeline (11), and one end of the dust collecting pipeline (11) is connected to a dust remover body (12) in a sleeved manner.

3. A semi-enclosed dust generating work area dust extraction apparatus based on gas curtain dust suppression according to claim 2, characterized in that, The dust detection mechanism comprises a dust concentration detection sensor (17) fixed to the outer wall of the wind curtain barrier wall (8), and the dust concentration detection sensor (17) is covered with a protective cover (16) outside.

4. A semi-enclosed dust generating work area dust extraction apparatus based on gas curtain dust suppression according to claim 3, characterized in that, The detection head of the dust concentration detection sensor (17) extends to the outside of the protective cover (16).

5. A semi-enclosed dusting work area dust extraction device based on gas curtain dust suppression according to claim 4, wherein, The outer wall of the wind curtain barrier wall (8) and located below the dust concentration detection sensor (17) side is provided with a fixing seat (5), one side of the fixing seat (5) is fixed with an electric push rod (6), one end of the electric push rod (6) is connected with a cleaning plate (7), and one side of the cleaning plate (7) is fixed with a sponge block (21).

6. A semi-enclosed dusting work area dust extraction device based on gas curtain dust suppression according to claim 3, characterized in that, The upper end of the semi-closed dust production working area (1) is provided with a water tank (15), the outer wall of the water tank (15) is fixed with a water pump (22), the water suction end of the water pump (22) is connected with a water suction pipe (23), one end of the water suction pipe (23) is connected with the bottom of the water tank (15), the water outlet end of the water pump (22) is connected with a water outlet pipe (14), one end of the water outlet pipe (14) is connected with a water jet head (18), and the water jet head (18) is located on one side of the detection head of the dust concentration detection sensor (17).

7. A semi-enclosed dusting work area dust extraction device based on gas curtain dust suppression according to claim 3, characterized in that, The gas conveying pipeline (3) is provided with a flow regulating valve (13), and the flow regulating valve (13), the dust remover body (12) and the dust concentration detection sensor (17) are electrically connected with the controller (19).

8. A semi-enclosed dusting work area dust extraction device based on a gas curtain dust barrier according to claim 7, characterized in that, The controller (19) is integrally provided with a display screen and control buttons.

9. A semi-enclosed dusting work area dust extraction device based on air curtain dust containment according to claim 1, wherein, The outer wall of the semi-closed dust production working area (1) and located at the bottom end of the outlet (9) is provided with a wind blocking strip (4), and the top of the side of the semi-closed dust production working area (1) is provided with an arc-shaped flow guiding part (20).

10. A semi-enclosed dusting work area dust extraction device based on a curtain of dust-retarding gas according to claim 9, characterised in that, The both ends of the wind blocking strip (4) are provided with connecting ear plates (27).

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