CN201470247U - Dust collection device - Google Patents

Abstract

The utility model relates to a filtering and collecting device, in particular to a dust collecting device, comprising a housing (1), a flower plate (2), a collecting device (3), a filtering device (4), a high-pressure dust cleaning device (5 ), the gas inlet (6) and the gas outlet (7), the collection device (3) includes a collection hopper (8), and the flower plate (2) separates the housing (1) into an upper clean room (9) and a lower filter room (10), the collecting hopper (8) is arranged on the bottom of the filter chamber (10), and the filter device (5) includes a filter bag (12) and a cage frame (11), and the filter bag (12) is set outside the cage frame (11), The cage frame (11) is connected on the flower plate (2), and the Venturi tube (13) is arranged on the upper part of the cage frame (11). When the Venturi tube (13) is installed upside down, the A The surface is the lower contact surface for installation. The utility model has the advantages that the filter bag has good air permeability and good collection effect; it has a wide application range and is easy to assemble and disassemble.

Description

Dust collection device

technical field

The utility model relates to a filtering and collecting device, in particular to a dust collecting device.

Background technique

The dust collection device is suitable for gas and dust separation of dusty gas in food, grain, medicine, building materials, chemical industry and other industries. It can filter and collect dust and fine dust such as PVC, carbon black, titanium dioxide, feed, etc., and pass through the dust collection device. The filtered clean air is discharged out of the machine after being filtered by the advanced filter element, and the falling dust falls into the collecting device, and is discharged after being collected by the collecting device. The current dust collection device generally includes a shell, a flower plate, a material collecting device, a filter device, a high-pressure dust cleaning device, a gas inlet and a gas outlet, and the material collecting device includes a collecting hopper, and the flower plate separates the shell into upper cleaning chamber and the lower part of the filter room, the collecting hopper is set in the lower part of the filter room, the filter device includes a cage and a filter bag, the Venturi tube is set inside the upper end of the cage, the cage is covered with a filter bag, and the cage is connected to the flower plate Above, the high-pressure dust cleaning device includes an air bag, a solenoid valve and a nozzle. The dust-laden gas is introduced into the filter chamber from the gas inlet, and the clean air filtered by the filter device is discharged to the outside of the shell, while the dust is collected by the aggregate. The high-pressure dust cleaning device blows high-pressure air into the filter bag to remove the dust adhering to the filter bag, so as to ensure the effectiveness of the filter bag dust removal. The existing dust collection device has the following defects: the Venturi tube is installed on the lower contact surface as the B surface (see Figure 3), and the distance between the upper surface of the flower plate and the upper opening of the Venturi tube is short, so the dust in the cleaning room It is easy to enter the inside of the filter bag from the upper opening of the Venturi tube, which will cause pollution to the filter bag and make the inner surface of the filter bag poor in air permeability, thus greatly affecting the separation and dust removal effect of the dust collection device.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a dust collection device with simple structure, good air permeability of the filter bag and good collection effect.

The technical solution to achieve the above purpose is: a dust collection device, including a shell, a flower plate, a material collecting device, a filter device, a high-pressure dust cleaning device, a gas inlet and a gas outlet, the material collecting device includes a collecting hopper, and the flower plate will The housing is divided into an upper clean room and a lower filter room. The collecting hopper is set at the lower part of the filter room. The filter device includes a filter bag and a cage frame. The filter bag is set outside the cage frame, and the cage frame is connected to the flower plate. The inner tube is arranged on the upper part of the cage, and the high-pressure dust cleaning device includes an air bag, a solenoid valve and a nozzle. When the venturi tube is installed, it is upside down and upside down, and the A side of the venturi tube is the lower contact surface for installation.

Further, the upper part of the Venturi tube is an inverted conical tube body with a large upper part and a smaller lower part, and the lower part is a cylindrical tube seat with a convex edge on the upper end, and a bell-shaped upper convex edge on the upper part of the tube body. , the bottom of the tube body has a bell mouth-shaped lower convex edge, the lower convex edge of the tube body is connected with the convex edge of the tube seat, the middle part of the tube seat has an inward groove, and the lower surface of the convex edge of the tube seat is the A surface .

Further, the collection hopper, the filter chamber and the inlet pipe of the gas inlet are all made of stainless steel.

Further, the clean room is made of stainless steel.

Further, the electromagnetic valve is arranged above the air bag.

Further, the flower board adopts an assembled structure.

Further, the stainless steel materials used in the collecting hopper, the filter chamber and the inlet pipe of the gas inlet are all 316L-2B stainless steel.

Further, the stainless steel material used in the clean room is 304-2B stainless steel.

Further, the width of a single flower board used for assembling the flower board is 610 mm.

After adopting the above-mentioned technical scheme, there are many advantages: (1), the structure is simple, the air permeability of the filter bag is good, and the collection effect is good. The Venturi tube of the utility model is changed from the traditional installation method. When the Venturi tube is installed, the upper and lower sides are reversed, and the A surface of the Venturi tube is the installation contact surface. The utility model has a simple structure, and the adoption of such a structure greatly extends the distance between the upper surface of the flower plate and the upper opening of the Venturi tube, increases the installation height of the Venturi tube, and increases the inflow of secondary gas during blowing. Therefore, the dust in the clean room is not easy to enter the inside of the filter bag from the upper opening of the Venturi tube, so as to ensure that the filter bag will not be polluted, the inner surface of the filter bag is clean, and the air permeability is excellent, thereby greatly improving the separation of the dust collection device. The dust removal effect is good, the separation effect is good, the dust removal effect is very ideal, the collection effect is good, and the filter bag is not easy to be damaged, which prolongs the service life of the utility model and reduces the maintenance cost of the equipment; (2) Wide application range. The collecting hopper, the filter chamber, the inlet pipe of the gas inlet and the cleaning room of the utility model are all made of stainless steel materials, which have great advantages compared with the carbon steel material of the prior art. The utility model is not only suitable for collecting dry powder materials, but also It is suitable for the collection of viscous wet powder such as paste resin after passing through the atomization dryer, and the utility model has a cleaning effect on the material, ensuring that the material is pollution-free, realizing real clean production, and avoiding the occurrence of secondary pollution ; At the same time, the material does not corrode the equipment, prolonging the service life of the equipment; (3), reliable performance. The utility model changes the original traditional structure that the electromagnetic valve is arranged under the air bag, but arranges the electromagnetic valve above the air bag, thus avoiding that the electromagnetic valve is arranged under the air bag, which is easy to dislodge the air in the air bag. The accumulated water is brought into the solenoid valve to make the solenoid valve malfunction, so as to ensure the normal operation of the solenoid valve, make the solenoid valve reliable, and effectively control the injection of compressed air, so that the utility model works stably and has a good collection effect; (4) , Easy to disassemble and save materials. The flower board of the utility model adopts an assembled structure, which greatly improves the rigidity of the flower board, and is convenient to disassemble, which brings great convenience to the transportation and installation of the utility model; the width of a single flower board used for flower board assembly 610mm is appropriate, because the commercial board width specification for making filter chambers and clean rooms on the market is 1220mm, so the width of a single flower board is 610mm, which is the same base as the standard width of clean rooms and filter chambers, which is not only convenient for the main material More importantly, the utilization rate of materials is greatly improved, waste is avoided, materials are saved, production is convenient, and material costs and processing costs are greatly reduced.

Description of drawings

Fig. 1 is a schematic diagram of the front view structure of the utility model with a part of the casing of part 1 removed;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is an enlarged view of part I of Fig. 1;

Fig. 4 is the structural representation of 13 Venturi tubes;

Fig. 5 is the schematic structural view of the part 15 solenoid valve installed on the air bag 14 in the part 5 high-pressure dust cleaning device 5;

Fig. 6 is a schematic structural view of a single piece with 2 flower plates;

Fig. 7 is a top view structural schematic diagram of Fig. 4;

Fig. 8 is a structural schematic diagram of piece 2 after the flower board is assembled.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Example

As shown in Figures 1 to 8, a dust collection device includes a housing 1, a flower plate 2, a collection device 3, a filter device 4, a high-pressure cleaning device 5, a gas inlet 6, a gas outlet 7, and an inspection port 22 and bracket 23. The casing 1 is provided with an inspection port 22, which is convenient for maintenance operations such as extracting and replacing the filter bag 12 from the inspection port 22, and the inspection port 22 can also be provided at other positions as required. The lower four legs of the housing 1 are provided with brackets 23 . The flower plate 2 separates the housing 1 into an upper clean room 9 and a lower filter room 10. The collecting device 3 includes a collecting hopper 8 and a rotary valve 17 at the bottom of the collecting hopper 8. The collecting hopper 8 is arranged at the lower part of the filter room 10. . The gas inlet 6 is installed on the upper side of the collecting hopper 8 and communicates with the collecting hopper 8 , and the gas outlet 7 is arranged on the upper part of the housing 1 and communicates with the clean room 9 . The collecting hopper 8, the inlet pipe 6-1 of the filter chamber 10 and the gas inlet 6, and the clean room 9 are all made of 316L-2B stainless steel, and the clean room 9 is made of 304-2B stainless steel. The flower board 2 adopts an assembled structure, and the flower board 6 adopts a single-piece hemming structure when the flower board 6 is assembled. The strong bolts at 18 make the flower plates 2 assembled together horizontally, and the strong bolts arranged at the bottom connection holes 19 of two adjacent flower plates 2 make the flower plates 2 longitudinally assembled together, and the assembled joints are covered with reinforcing ribs , to ensure that the utility model has a beautiful appearance, the flower plate 2 is provided with a flower plate hole 20. The filter device 5 includes a cage frame 11 and a filter bag 12, the cage frame 11 is installed in the filter chamber 9, the filter bag 12 is set outside the cage frame 11, and the cage frame 11 upper end has a cage frame edge 11-1 with a filter The cage frame 11 of the bag 12 is inserted from above the flower plate hole 20 during installation, and after the lower part of the cage frame 11 passes through the flower plate hole 20, the cage edge 11-1 is lapped on the flower plate 2 on the upper edge of the flower plate hole 20, That is, the cage frame 11 is lapped and connected to the flower plate 2 through the cage frame lap 11 - 1 . The upper part of the Venturi tube 13 is a tube body 13-1 with a large upper part and a lower side with a small inverted conical tube shape, and the lower part is a cylindrical tube seat 13-2 with a convex edge 13-2-1 on the upper end, and the tube body 13-1 There is a bell-shaped convex edge 13-1-1 on the top of the pipe body 13-1, and a bell-shaped downward convex edge 13-1-2 is provided below the pipe body 13-1, and the downward convex edge 13-1-2 of the pipe body 13-1 2 It is connected with the convex edge 13-2-1 of the tube seat 13-2, and the middle part of the tube seat 13-2 has an inward groove 13-2-2, and the convex edge 13-2-1 of the tube seat 13-2 The lower surface is A surface, and the lower convex edge 13-1-2 upper surface of the pipe body 13-1 is B surface. The Venturi tube 13 is installed upside down and upside down, which is opposite to the installation direction of the prior art, that is, the tube body 13-1 of the Venturi tube 13 is located at the top, and the tube seat 13-2 is located at the bottom. When installing, the A surface of the Venturi tube 13 In contact with the upper end of the cage frame 11, the A surface of the Venturi tube 13 is the lower contact surface for installation. Compared with the lower convex edge 13-1-2, the upper convex edge 13-1-1 is smaller and the lower convex edge 13-1-2 is larger. The groove 13-2-2 of the tube base 13-2 is used to clamp the upper part of the cage 11, and the lower part of the Venturi tube 13 is clamped on the inner opening of the cage 11 through the groove 13-2-2, thereby The Venturi tube 13 is arranged on the upper part of the cage frame 11 . The high-pressure dust cleaning device 5 includes an air bag 14, a solenoid valve 15, a nozzle 16 and a blowing pipe 21. The solenoid valve 15 is arranged above the air bag 14, so that the solenoid valve 15 is not easy to malfunction and has reliable performance. The nozzle 16 is installed on the blowing pipe 21, and the blowing pipe 21 is arranged at the lower part of the cleaning room 9. The nozzle 16 is opposite to the corresponding filter bag 12. Under the control of the electromagnetic valve 15, the utility model makes the high-pressure air in the air bag 14 pass through the blowing pipe The nozzle 16 on the 21 sprays out and sprays into the filter bag 12 through the Venturi tube 13. This blowing makes the dust adhering to the filter bag 12 detached, thereby achieving the purpose of cleaning the filter bag 12 and ensuring The filter bag 12 effectively collects dust. The falling dust falls into the collecting hopper 8, and is discharged after being collected by the rotary valve 17. The solenoid valve 15 of this embodiment is a pulse solenoid valve, and equipped with a pulse controller, the pulse solenoid valve can be triggered in sequence under the control of the pulse controller, so as to realize automatic control of the high-pressure air in the air bag 14 passing through the blowing pipe 21. The nozzle 16 is automatically ejected at regular intervals.

Except above-mentioned embodiment, solenoid valve 15 of the present utility model can also be equipped with PLC microcomputer control instrument, under the control of PLC microcomputer control instrument, realize automatic control the high-pressure air in the air bag 14 through the nozzle 16 on the spray pipe 21 regular automatic injection out.

The utility model is not limited to the above-mentioned embodiments, and all technical solutions formed by equivalent replacement or equivalent replacement all belong to the protection scope of the utility model.

Claims (8)

1. dust collecting, include housing (1), card (2), material-gathering device (3), filter (4), high pressure deashing device (5), gas access (6) and gas vent (7), material-gathering device (3) includes aggregate bin (8), card (2) is separated into the clean room (9) on top and the filter chamber (10) of bottom with housing (1), aggregate bin (8) is arranged on the bottom of filter chamber (10), filter (5) includes filter bag (12) and cage (11), filter bag (12) is sleeved on outside the cage (11), cage (11) is connected on the card (2), Venturi tube (13) is arranged on cage (11) top, high pressure deashing device (5) includes gas bag (14), magnetic valve (15) and nozzle (16), it is characterized in that: oppositely be inverted up and down when described Venturi tube (13) is installed, the A face of Venturi tube (13) is for installing contact-making surface down.

2. dust collecting according to claim 1, it is characterized in that: the top of described Venturi tube (13) is the pipe shaft (13-1) of top big following little inverted cone tubular, the bottom is the base (13-2) of the upper end cylinder barrel shaped that has chimb (13-2-1), the last convex edge (13-1-1) that has toroidal above the pipe shaft (13-1), the following convex edge (13-1-2) that has toroidal below the pipe shaft (13-1), the following convex edge (13-1-2) of pipe shaft (13-1) joins with the chimb (13-2-1) of base (13-2), base (13-2) middle part has inside groove (13-2-2), and chimb (13-2-1) lower surface of base (13-2) is the A face.

3. dust collecting according to claim 1 is characterized in that: the inlet duct (6-1) of described aggregate bin (8), filter chamber (10), gas access (6) and clean room (9) all adopt stainless steel material to make.

4. dust collecting according to claim 1 is characterized in that: described magnetic valve (15) is arranged at the top of gas bag (14).

5. dust collecting according to claim 1 is characterized in that: described card (2) adopts splicing structure.

6. dust collecting according to claim 3 is characterized in that: the stainless steel material that the inlet duct (6-1) of described aggregate bin (8) and filter chamber (10) and gas access (6) adopts is the 316L-2B stainless steel.

7. dust collecting according to claim 3 is characterized in that: the stainless steel material that described clean room (9) adopts is the 304-2B stainless steel.

8. dust collecting according to claim 5 is characterized in that: card (2) width of the used monolithic of described card (2) assembly unit is 610mm.

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