Screening dust removal device

Abstract

The utility model discloses a screening dust removal device, which belongs to the field of dust removal equipment and comprises an upper box body, a middle box body and a lower box body, a dust removal bag is arranged between the upper box body and the middle box body, the lower box body is provided with a plurality of dust hoppers, and each dust hopper is connected with the middle box body through a bent pipe; the middle box body is connected with the air inlet channel; the upper box body is connected with the air outlet channel; an elbow of the bent pipe is connected with the back flushing device; the bent pipe is arranged upwards, a plurality of air inlet holes are formed in the elbow, and each air inlet hole is outwards provided with an air inlet pipe seat with the corresponding size; the back flushing device comprises a main pipeline branched from the air source, a valve connected with the main pipeline, and a hose connected with the valve; the hose is fixedly connected with a port of the air inlet pipe seat. The utility model can effectively solve the problem of dust clogging of the elbow, improve the operation efficiency of the dust remover, reduce the requirement of manual dust removal, and reduce the working intensity of operators.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment, and in particular to a screening dust removal device. Background Technology

[0002] With the continuous development of industrial production, various dust removal equipment has been widely used to purify dust-laden gases generated during industrial processes. Among them, the screening dust collector is a common type of dust removal equipment, achieving automatic dust collection through pulse backflushing. However, in actual use, the dust often accumulates at the bend of the dust collector, causing clogging and preventing it from falling properly into the ash hopper. This prevents operators from performing normal dust removal operations, requiring manual cleaning inside the chamber when clogging occurs, increasing the difficulty of the operation. The existing screening dust collectors are prone to clogging at the bend, mainly because the dust cannot be smoothly discharged at this point. When the bend is clogged, it not only affects the normal operation of the dust collector but also increases the workload of the operators. Therefore, it is urgent to modify the bend section of the screening dust collector to solve the clogging problem, improve dust removal efficiency, and reduce the workload of operators. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a screening and dust removal device that can effectively solve the problem of dust blockage at elbows, improve the operating efficiency of the dust collector, reduce the need for manual dust removal, and reduce the workload of operators.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A screening and dust removal device includes an upper chamber, a middle chamber, and a lower chamber; a dust collection bag is disposed between the upper chamber and the middle chamber, and a plurality of dust hoppers are disposed in the lower chamber, each dust hopper being connected to the middle chamber via a bent pipe; the middle chamber is connected to an air inlet channel; and the upper chamber is connected to an air outlet channel.

[0006] The elbow of the bend is connected to the backflushing device;

[0007] The bend is upward-pointing, and several air inlets are opened at the bend. Each air inlet is provided with an air inlet seat of a corresponding size.

[0008] The backflush device includes a main pipe branching from the air source, a valve connected to the main pipe, and a hose connected to the valve; the hose is fixedly connected to the air inlet port.

[0009] A further improvement of the present invention is that: an inspection hole is provided on the bend, an inspection pipe seat of corresponding size is provided outward from the inspection hole, an inspection pipe door is provided at the interface between the inspection pipe seat and the bend and is movably connected to the inspection pipe seat; and a sealing is provided at the port of the inspection pipe seat.

[0010] A further improvement of this utility model is that the air inlet is located at different positions on the elbow.

[0011] A further improvement of this utility model is that the number of air inlets ranges from five to eight.

[0012] A further improvement of this utility model is that the diameter of the air inlet is in the range of 5mm to 15mm.

[0013] A further improvement of this utility model is that the gas source is connected to the steam drum.

[0014] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0015] 1. This utility model solves the problem of elbow blockage by installing a back-blowing device at the elbow, which uses back-blowing to clear the blockage and allow dust to fall smoothly into the ash hopper, thus improving the operating efficiency of the dust collector.

[0016] 2. The distribution and number of air inlets in this utility model have been optimized to improve the backflushing cleaning effect.

[0017] 3. This utility model eliminates the need for operators to enter the box for manual dust removal, reducing the workload of operators; the device has a simple structure, is easy to operate, and improves operating efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the screening and dust removal device in this utility model;

[0019] Figure 2 This is a schematic diagram of the backflush device in this utility model;

[0020] Figure 3 This is a front view of the elbow air inlet setting in this utility model;

[0021] Among them, 1. Dust collector bag, 2. Dust hopper, 3. Bend, 4. Air inlet channel, 5. Air outlet channel, 6. Air inlet pipe seat, 7. Air source, 8. Hose, 9. Valve. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, in the description of this utility model, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] like Figure 1 , 2 As shown, a screening and dust removal device includes an upper chamber, a middle chamber, and a lower chamber; a dust collection bag 1 is provided between the upper chamber and the middle chamber, and a plurality of ash hoppers 2 are provided in the lower chamber, each ash hopper 2 being connected to the middle chamber via a bent pipe 3; the middle chamber is connected to an air inlet channel 4; and the upper chamber is connected to an air outlet channel 5.

[0026] The bend 3 is connected to the backflushing device;

[0027] The bend 3 is set upwards, and several air inlets are opened at the bend. Each air inlet is provided with an air inlet pipe seat 6 of a corresponding size.

[0028] The backflush device includes a main pipe branching from the air source 7, a valve 9 connected to the main pipe, and a hose 8 connected to the valve 9; the hose 8 is fixedly connected to the port of the air inlet pipe seat 6; the air source 7 is connected to the steam drum.

[0029] The bend 3 is also provided with an inspection hole, and an inspection pipe seat of corresponding size is provided outward from the inspection hole. An inspection pipe door is provided at the interface between the inspection pipe seat and the bend and is movably connected to the inspection pipe seat. The port of the inspection pipe seat is sealed.

[0030] Example 1

[0031] like Figure 3 As shown, the intake pipe seat 6 is configured with five parts, including two small intake holes arranged side by side above the bend 3 and three large intake holes arranged side by side below the bend 3.

[0032] The small air inlet has a diameter of 5mm and a spacing of 50mm; the large air inlet has a diameter of 10mm and a spacing of 40mm. The hose 8 is a high-temperature, high-pressure hose, and the air source 7 is connected to the steam drum at a pressure of 0.6 MPa.

[0033] Example 2

[0034] The intake manifold 6 is configured with six parts, including three small intake holes arranged side by side above the bend 3 and three large intake holes arranged side by side below the bend 3.

[0035] The small air inlet has a diameter of 5mm and a spacing of 30mm; the large air inlet has a diameter of 8mm and a spacing of 20mm. The hose 8 is a high-temperature and high-pressure hose, and the air source 7 is compressed air with a pressure of 0.8 MPa.

[0036] How to use:

[0037] When in use, first turn off the dust collector, open valve 9, and the main pipeline draws air from the air source 7. Valve 9 controls the flow of air, and hose 8 guides the air to the elbow. The five air pipes concentrate the airflow and spray it into the inside of the elbow to impact the blocked dust, causing it to detach from the elbow wall and fall smoothly into the ash hopper 2. Use the back-blowing device to clear the blockage of dust in the elbow. After clearing the blockage, close valve 9 and restart the dust collector.

[0038] When a problem occurs at bend 3, remove the seal on the inspection hole and open the inspection valve to inspect bend 3.

[0039] In summary, this invention can effectively solve the problem of dust blockage at elbows, improve the operating efficiency of dust collectors, reduce the need for manual dust removal, and reduce the workload of operators.

Claims

1. A screening dedusting device, characterized in that: It comprises an upper box, a middle box and a lower box; a dust removal bag (1) is arranged between the upper box and the middle box, and the lower box is provided with a plurality of ash hoppers (2), each of which is connected with the middle box through an elbow pipe (3); the middle box is connected with an air inlet channel (4); the upper box is connected with an air outlet channel (5); The elbow of the elbow pipe (3) is connected with a back flushing device; The elbow pipe (3) is arranged upwardly, and a plurality of air inlet holes are formed at the elbow, and each air inlet hole is outwardly provided with an air inlet pipe seat (6) of corresponding size; The back flushing device comprises a main pipe branched from a gas source (7), a valve (9) connected with the main pipe, and a hose (8) connected with the valve (9); the hose (8) is fixedly connected with the air inlet pipe seat (6).

2. The screening dust extraction apparatus of claim 1, wherein: An inspection hole is arranged on the elbow pipe (3), and an inspection pipe seat of corresponding size is outwardly arranged at the inspection hole; the inspection pipe seat is movably connected with an inspection pipe door at the joint surface of the inspection pipe seat and the elbow.

3. The screening dust extraction apparatus of claim 1, wherein: The air inlet holes are arranged at different positions of the elbow.

4. The screening dust extraction apparatus of claim 1, wherein: The number of the air inlet holes ranges from five to eight.

5. The screening dust extraction device of claim 1, wherein: The diameter of the air inlet holes ranges from 5mm to 15mm.

6. The screening dust extraction device of claim 1, wherein: The gas source (7) is connected with a steam drum.

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