CN216909544U - Pulse bag-type dust collector - Google Patents

Abstract

The utility model discloses a pulse bag-type dust collector, which can effectively reduce the content of PM2.5 particles at a waste gas port of a fan through the dual functions of a diversion hopper and a filter cloth plate, can effectively reduce the accumulation of dust at the joint of a bag, a frame and a sealing ring through the large-caliber covering function of the diversion hopper, and can prolong the interval time of machine halt and dust removal.

Description

A pulse bag filter

technical field

The utility model relates to the technical field of industrial dust removal equipment, in particular to a pulse bag filter.

Background technique

For industrial production fields that contain powder raw materials or produce powder during processing, the control of dust is not only a health guarantee for the production environment of operators, but also an effective requirement for improving product quality. Pulse bag filter is an improved new type of high-efficiency, online dust-cleaning pulse bag filter based on bag filter. It has obvious dust collection effect, long continuous working time and wide application. It is an indispensable dust removal equipment for industrial dust removal. .

The pulse bag filter retains the advantages of high purification efficiency, large gas processing capacity, stable performance, convenient operation, long filter bag life and small maintenance workload. The bag of the pulse bag filter isolates large particles of dust, while the small particles of dust can pass through the bag, and then be sucked out of the box from bottom to top by the traction force of the fan set at the upper end of the pulse bag filter. The fine dust in the bag may cause damage to the fan if it is inhaled, and there may be more PM2.5 particles in the exhausted gas.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a pulse bag filter that can effectively reduce PM2.5 particles at the air outlet.

The purpose of this utility model adopts following technical scheme to realize:

A pulse bag filter includes a box, a fan assembly, a discharge valve, a bag assembly and a pulse assembly. An orifice plate matching the bag assembly is horizontally arranged in the box. There is an air inlet, an air outlet is arranged on the side wall opposite to the air inlet above the orifice plate, the air outlet is clamped to a filter cloth plate, the fan assembly is connected to the air outlet of the box, and the cloth bag assembly includes a cloth bag, a sealing ring, a frame and Drainage bucket, the cloth bag is sleeved on the frame and the upper end is airtightly connected with the orifice plate through the sealing ring, the drainage bucket is inserted into the frame, the outer diameter of the drainage bucket is larger than the outer diameter of the frame, and the inner diameter of the top of the drainage bucket is larger than the inner diameter of the cloth bag.

Further, the fan assembly includes a motor, a runner body, an air guide and an exhaust port, and the opening direction of the exhaust port is vertically upward.

Further, the air guide fins are inclined from the axis to the direction of the exhaust port.

Further, the frame is a warp and weft frame.

Further, the filter cloth plate is detachably mounted on the air outlet.

Further, the drainage bucket is a PVC or nylon drainage bucket.

Further, the drainage hopper is a metal drainage hopper whose surface is coated with a polytetrafluoroethylene coating.

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

The pulse bag filter provided by the invention can effectively reduce the PM2.5 particle content in the exhaust port of the fan through the dual functions of the drainage hopper and the filter cloth plate. The dust accumulation at the connection of the ring will prolong the interval between shutdown and cleaning.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the side structure schematic diagram of the utility model;

Fig. 3 is the partial enlarged schematic diagram of the R part of Fig. 2;

FIG. 4 is a schematic structural diagram of a cloth bag assembly.

Reference signs: 1. Box body; 11. Air inlet; 12. Air outlet; 13. Orifice plate; 14. Filter cloth plate; 2. Fan assembly; 21. Motor; 22. Wheel body; sheet; 24, waste gas outlet; 3, discharge valve; 4, cloth bag assembly; 41, cloth bag; 42, sealing ring; 43, frame; 44, drainage bucket; 5, pulse assembly.

Detailed ways

Hereinafter, the present invention will be further described with reference to the specific embodiments. It should be noted that, under the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

The following are specific embodiments of the present utility model. Unless otherwise specified, the words “upper”, “lower” and other words with orientation indications should only be understood as orientation indications for the accompanying drawings, and should not be understood as actual products. orientation limitation.

As shown in Figure 1, a pulse bag filter includes a box 1, a fan assembly 2, a discharge valve 3, a bag assembly 4 and a pulse assembly 5. As shown in Figure 2, the box is horizontally provided with a cloth bag assembly. The matching orifice plate 13, the box body is provided with an air inlet 11 on the side wall below the orifice plate, and an air outlet 12 on the side wall opposite to the air inlet above the orifice plate. A filter cloth plate 14 is connected, and the fan assembly is connected to the air outlet of the box. As shown in Figure 4, the cloth bag assembly includes a cloth bag 41, a sealing ring 42, a frame 43 and a drainage bucket 44. The cloth bag is sleeved outside the frame and the upper end is sealed The ring is airtightly connected with the orifice plate, the drainage bucket is inserted into the frame, the outer diameter of the drainage bucket is larger than the outer diameter of the frame, and the inner diameter of the top of the drainage bucket is larger than the inner diameter of the cloth bag.

As shown in Figures 2 and 3, the fan assembly includes a motor 21, a runner body 22, an air guide 23 and an exhaust port 24; the opening direction of the exhaust port is vertically upward. The upward opening direction can reduce the overflow of dust to a certain extent. The air guides are arranged in an inclined array from the axis to the exhaust port. The air guide plate can speed up the airflow to the exhaust gas to form a vortex, thereby improving the air outlet efficiency.

As shown in FIG. 2 , the box body adopts the shape of a cuboid combined with a cone, and the air inlet is arranged on the side wall in the width direction of the cuboid, so that the air flow path in the box body is longer. There are preferably two discharge valves, and the lower end of the box body is double-conical to improve dust accumulation efficiency.

As shown in Figure 4, the frame is a warp and weft frame with fixed upper and lower ends, that is, including radially arranged support columns and axially arranged support rings, the upper end of the frame is matched with the cloth bag and the sealing ring, and the frame and the sealing ring are matched. The matching method is preferably that the longitudinal section of the sealing ring is L-shaped, the upper end of the frame is turned outward to present a downwardly opening card groove, the lower end of the sealing ring is airtightly connected to the orifice plate, and the upper end is clamped in the card groove.

The specific connection method of the cloth bag assembly is that the cloth bag is sleeved outside the frame assembly, the upper edge of the cloth bag is clamped between the sealing ring and the edge of the fixing ring, and the sealing ring and the orifice plate are airtightly connected, that is, the orifice plate is connected to the cloth bag assembly. Matching, so that the box is divided into two relatively separated spaces, namely the upper box and the lower box. Most of the large particles of dust settle in the lower box and slide down along the bucket of the lower box to open the discharge. The dust in the upper box is the fine powder after passing through the cloth bag, and the content in the upper box is less. It is blocked by the filter cloth plate at the outlet of the upper box and the drainage bucket with a trumpet-shaped opening upward. On the one hand, the dust content in the upper box is reduced from the source, and on the other hand, the dust in the upper box is blocked from the air outlet from entering the fan assembly. .

The filter cloth plate is detachably installed on the air outlet; the specific structure of the filter cloth plate can be composed of a ring body supporting the filter cloth matched with the air outlet. As a secondary filter device, the filter cloth plate can effectively reduce the PM2.5 particles entering the fan.

The drainage bucket can be a polymer resin drainage bucket, such as PVC or nylon, which has good strength and toughness. Or a metal drainage bucket coated with a PTFE coating on the surface, the drainage bucket should preferably have an inner surface extending smoothly in the radial direction, so that the dust particles fall back into the cloth bag.

The above-mentioned embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited by this. Any insubstantial changes and replacements made by those skilled in the art on the basis of the present invention belong to the scope of the present invention. The scope of protection of the utility model.

Claims (7)

1. A pulse bag filter, comprising a box, a fan assembly, a discharge valve, a bag assembly and a pulse assembly, the box is horizontally provided with an orifice plate that matches the bag assembly, and the box is in the orifice plate. There is an air inlet on the lower side wall of the orifice plate, and an air outlet is arranged on the side wall opposite to the air inlet above the orifice plate. The bag assembly includes a cloth bag, a sealing ring, a frame and a drainage bucket, the cloth bag is sleeved on the frame and the upper end is airtightly connected to the orifice plate through the sealing ring, and the drainage bucket is inserted into the A frame, the outer diameter of the drainage bucket is larger than the outer diameter of the frame, and the inner diameter of the top of the drainage bucket is larger than the inner diameter of the cloth bag. 2 . The pulse bag filter according to claim 1 , wherein the fan assembly comprises a motor, a runner body, an air guide and an exhaust gas port, and the opening direction of the exhaust gas port is vertically upward. 3 . 3 . The pulse bag filter according to claim 2 , wherein the air guide fins are arranged in an inclined array from the axial center to the direction of the exhaust port. 4 . 4. The pulse bag filter according to claim 1, wherein the frame is a warp and weft frame. 5 . The pulse bag filter according to claim 1 , wherein the filter cloth plate is detachably installed at the air outlet. 6 . 6 . The pulse bag filter according to claim 1 , wherein the drainage hopper is a PVC or nylon drainage hopper. 7 . 7 . The pulse bag filter according to claim 1 , wherein the drainage hopper is a metal drainage hopper whose surface is coated with a polytetrafluoroethylene coating. 8 .

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