Novel reverse blowing type dust removal treatment equipment

Abstract

The invention relates to novel reverse blowing type dust removal treatment equipment which comprises an air inlet box, a dust remover filtering box body and an air inlet pipe, the back-blowing fan is positioned at the top of the dust remover filtering box body; the back-blowing air pipe is connected with an outlet of the back-blowing fan; the telescopic moving device is connected with the rotating cylinder; the sealing cover plate is matched with the telescopic moving device; according to the invention, the reverse blowing fan is independently arranged, a reverse blowing system is optimized, reverse blowing is carried out in different areas and different modules, the reverse blowing efficiency is improved, and dust accumulation on the surface of a cloth bag is prevented; the flat frame cloth bag is adopted for dust removal, so that the filtering area of a single cloth bag is increased, and the occupied area of the dust remover is effectively reduced; the pretreatment device is arranged at the inlet of the dust remover, so that large-particle dust can be removed, sparks can be prevented from entering the dust remover, and the treatment load of rear-end bag type dust removal is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal equipment, and specifically to a novel reverse blowing type dust removal treatment equipment. Background Art

[0002] Dust removal equipment refers to equipment that separates dust from flue gas, also known as a dust collector or dust removal equipment. Conventional dry bag dust removal equipment on the current market is mainly divided into bag dust removal and cartridge dust removal. The filter bag is made of woven filter cloth or non-woven felt, and the fiber fabric's filtering effect is used to filter the dust-containing gas. When the dust-containing gas enters the bag dust collector, dust particles with large size and high specific gravity settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, and the gas is purified. Bag dust removal can be further divided into mechanical vibration type, reverse blowing type, and pulse jet type according to different dust cleaning methods. Currently, the most widely used dust cleaning method for dust collectors is the pulse jet type. However, the main disadvantage of this type of dust collector is that the filter area of the filter bag is small, and the equipment occupies a large area. The reverse blowing type dust collector is less used in the market, and its main defect is that the reverse blowing pressure is insufficient, the effect is not good, and the dust removal efficiency is not high. Summary of the Invention

[0003] To solve the above problems, the present invention proposes a novel reverse blowing type dust removal treatment equipment.

[0004] A novel reverse blowing type dust removal treatment equipment includes an air inlet box, a dust collector filter box body with a dust collector body built therein, an air inlet pipe provided on the air inlet box, and further includes a pretreatment device that enters through the air inlet pipe to block large particle dust and sparks, a reverse blower located at the top of the dust collector filter box body, a reverse blowing air pipe connected to the outlet of the reverse blower, an electric air valve connected to the reverse blowing air pipe, a rotating cylinder connected to the electric air valve, a telescopic moving device connected to the rotating cylinder, a sealing cover plate cooperating with the telescopic moving device, and a transmission device located on the lower side of the dust collector body. The sealing cover plate covers the side of the dust collector body close to the opening of the flat frame filter bag.

[0005] The rear end of the pretreatment device is connected through a self-discharging ash pipe to an inlet receiving ash bucket for loading the intercepted large particle dust and sparks.

[0006] The pretreatment device includes a fixed shaft fixed on the inner wall of the pretreatment device, an air inlet connected to the front section of the waste gas pipe, an air outlet connected to the air inlet box, and spiral blades welded on the fixed shaft.

[0007] The inlet of the reverse blower is connected to the atmosphere.

[0008] The telescopic moving device described above includes an upper fixed pipe connected to the rotating cylinder, a telescopic pipe connected to the upper fixed pipe, and a lower fixed pipe connected to the telescopic pipe. The lower end of the lower fixed pipe is connected to the sealing cover plate.

[0009] The transmission device described above includes a protective cover, a positioning gear arranged inside the protective cover, a transmission pull rope engaged with the positioning gear, a limit switch arranged at the lower end of the positioning gear, and a motor engaged with the transmission pull rope.

[0010] Rolling small wheels are arranged at the lower end of the sealing cover plate.

[0011] A dust collection hopper for receiving and storing ash after the equipment is back blown and cleaned is provided at the lower part of the dust collector body. A plurality of exhaust branch pipes and an exhaust main pipe connected to the exhaust branch pipes are provided on the side surface of the lower part of the dust collector body.

[0012] The beneficial effects of the present invention are as follows:

[0013] The present invention separately sets an air reverse blower, optimizes the air reverse system, performs air reverse in zones and modules, improves the air reverse efficiency, and prevents ash accumulation on the surface of the cloth bags; adopts flat frame cloth bag dust collection, increases the filtration area of a single cloth bag, and effectively reduces the floor area of the dust collector; a pretreatment device is provided at the inlet of the dust collector, which can remove large particle dust and prevent sparks from entering the dust collector, reducing the treatment load of the subsequent bag type dust collection. Description of the Drawings

[0014] The present invention will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 It is the front view structural schematic diagram of the present invention;

[0016] Figure 2 It is the structural schematic diagram of the transmission device of the present invention;

[0017] Figure 3 It is the structural schematic diagram of the pretreatment device of the present invention;

[0018] Reference numerals: 1, air inlet pipe; 2, pretreatment device; 21, air inlet; 22, air outlet; 23, spiral blade; 24, fixed shaft; 3, ash receiving bucket; 4, air inlet box; 5, air reverse blower; 6, rotating cylinder; 7, electric air valve; 8, telescopic moving device; 81, upper fixed pipe; 82, lower fixed pipe; 83, telescopic pipe; 9, transmission device; 91, positioning gear; 92, limit switch; 93, protective cover; 94, transmission pull rope; 95, motor; 10, dust collector filter box body; 11, flat frame cloth bag; 12, exhaust branch pipe; 13, exhaust main pipe; 14, rolling small wheel; 15, sealing cover plate; 16, dust collection hopper; 17, air reverse duct. Detailed Embodiments

[0019] In order to make the technical means, creative features, achieved objectives and effects realized by the present invention easy to understand, the present invention will be further described below.

[0020] As Figures 1 to 3 shown, a new type of reverse blowing dust removal treatment equipment includes an air inlet box 4, a dust collector filter box body 10 with a dust collector body built therein, an air inlet pipe 1 provided on the air inlet box 4, and further includes a pretreatment device 2 for blocking large particulate dust and sparks after entering through the air inlet pipe 1, a reverse blowing fan 5 located at the top of the dust collector filter box body 10, a reverse blowing air pipe 17 connected to the outlet of the reverse blowing fan 5, an electric air valve 7 connected to the reverse blowing air pipe 17, a rotating cylinder 6 connected to the electric air valve 7, a telescopic moving device 8 connected to the rotating cylinder 6, a sealing cover plate 15 cooperating with the telescopic moving device 8, and a transmission device 9 located on the lower side of the dust collector body. The sealing cover plate 15 covers the side of the dust collector body close to the opening of the flat frame cloth bag 11.

[0021] The flat frame cloth bag 11 has a rectangular cross-section, the frame is made of a metal structure, and a filter layer is sleeved on the outer layer. The flat frame cloth bag 11 is used for dust removal, which improves the filtering area of a single cloth bag and effectively reduces the floor area of the dust collector.

[0022] The rear end of the pretreatment device 2 is connected through a self-discharging ash pipe to an inlet ash receiving bucket 3 for containing the intercepted large particulate dust and sparks.

[0023] A common air distribution baffle is provided in the air inlet box 4, which can make the air inlet evenly enter each chamber of the dust collector.

[0024] The reverse blowing air pipe 17 is connected to the electric air valve 7. Multiple electric air valves 7 can be set in the system according to the dust removal amount. Each electric air valve 7 is controlled to open and close through the system PLC program and is opened at intervals.

[0025] The pretreatment device 2 includes a fixed shaft 24 fixed on the inner wall of the pretreatment device 2, an air inlet 21 connected to the front-stage exhaust gas pipeline, an air outlet 22 connected to the air inlet box 4, and a spiral blade 23 welded on the fixed shaft 24. The pretreatment device 2 is provided at the dust collector inlet, which can remove large particulate dust and prevent sparks from entering the dust collector, reducing the treatment load of the subsequent bag type dust removal.

[0026] The inlet of the reverse blowing fan 5 is connected to the atmosphere. The reverse blowing fan 5 is separately provided, optimizing the reverse blowing system, performing reverse blowing in zones and modules, improving the reverse blowing efficiency, preventing dust accumulation on the surface of the cloth bag. The reverse blowing fan 5 is located at the top of the dust collector, and an anti-vibration base is provided at the bottom.

[0027] The telescopic moving device 8 described above includes an upper fixed pipe 81 connected to the rotating cylinder 6, a telescopic pipe 83 connected to the upper fixed pipe 81, and a lower fixed pipe 82 connected to the telescopic pipe 83. The lower end of the lower fixed pipe 82 is connected to the sealing cover plate 15. The rotating cylinder 6 can rotate freely by 360° and is connected to the upper fixed pipe 81. When the rotating cylinder 6 rotates, the telescopic moving device 8 moves accordingly.

[0028] The telescopic pipe 83 is a flexible transparent telescopic sleeve and can be telescopically extended and retracted freely according to the moving position.

[0029] The transmission device 9 includes a protective cover 93, a positioning gear 91 arranged inside the protective cover 93, a transmission pull rope 94 engaged with the positioning gear 91, a limit switch 92 arranged at the lower end of the positioning gear 91, and a motor 95 engaged with the transmission pull rope 94.

[0030] When the positioning gear 91 rotates, the transmission pull rope 94 moves a certain distance. The moving distance is related to the rotation angle of the positioning gear 91, and the rotation angle of the positioning gear 91 is controlled by the limit switch 92.

[0031] The probe of the limit switch 92 contacts the teeth on the positioning gear 91 and stops when the positioning gear 91 rotates to the next tooth. At this time, the sealing cover plate 15 and the telescopic moving device 8 move to the next pulse-jet filtering position accordingly. The transmission pull rope 94 passes through the side of the sealing cover plate 15, so as to drive the sealing cover plate 15 to move relative to the dust collector body. The overall operating power of the transmission device 9 is provided by the motor 95.

[0032] Rolling small wheels 14 are arranged at the lower end of the sealing cover plate 15, which can support the sealing cover plate 15 and move horizontally along the dust collector body.

[0033] A dust collecting hopper 16 for receiving and storing ash after the equipment is pulse-jet cleaned is arranged at the lower part of the dust collector body. A plurality of exhaust branch pipes 12 are arranged on the side of the lower part of the dust collector body, and an exhaust main pipe 13 connected to the exhaust branch pipes 12.

[0034] The main process flow: Dust enters the intake pipe, large particle size dust is removed through pretreatment and blocking, and then enters the intake chamber 4. After that, it passes through the surface filtration of the flat frame filter bag 11, and dust particles accumulate on the surface of the filter material. The waste gas is finally sent to the terminal for discharge through the exhaust main pipe 13.

[0035] When it is necessary to clean the flat frame filter bag 11, the electric air valve 7 on the corresponding module air duct is opened, and the pulse-jet blower 5 is started to clean this position. The cleaning time can be adjusted through the control program. After the cleaning of this area is completed, the transmission device 9 drives the sealing cover plate 15 to move to the next module to be cleaned, so as to clean the remaining modules to be cleaned in turn.

[0036] The reverse blowing is modularized, effectively ensuring the cleaning pressure and improving the dust removal efficiency.

[0037] The flat-frame filter bag 11 adopted in the present invention occupies a small space and has a large filtering area, which can effectively reduce the floor area of the dust collector; the flat-frame filter bag 11 is vertically arranged, which can effectively prevent dust accumulation on the surface of the filter bag. The whole set of system can realize full-automatic control and one-key operation, and has the function of continuous operation for 24 hours.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A new type of reverse blow dust removal treatment equipment, comprising an air inlet box (4), a dust collector filter box body (10) with a dust collector body built therein, and an air inlet pipe (1) arranged on the air inlet box (4), characterized in that: It also includes a pretreatment device (2) that enters through the intake pipe (1) and then blocks large particulate dust and sparks, a reverse blower (5) located at the top of the dust collector filter box body (10), a reverse blowing air pipe (17) connected to the outlet of the reverse blower (5), an electric air valve (7) connected to the reverse blowing air pipe (17), a rotating cylinder (6) connected to the electric air valve (7), a telescopic moving device (8) connected to the rotating cylinder (6), a sealing cover plate (15) cooperating with the telescopic moving device (8), and a transmission device (9) located on the lower side of the dust collector body. The sealing cover plate (15) covers the side of the dust collector body close to the opening of the flat frame filter bag (11).

2. A novel reverse-blowing dust removal treatment equipment according to claim 1, characterized in that: The rear end of the pretreatment device (2) is connected by a self-discharging ash pipe to an incoming ash bucket (3) for storing the intercepted large particulate dust and sparks.

3. A novel reverse-blowing dust removal treatment equipment according to claim 1, characterized in that: The pretreatment device (2) includes a fixed shaft (24), an air inlet (21) connected to the front-section waste gas pipe, an air outlet (22) connected to the intake box (4), and a spiral blade (23) welded to the fixed shaft (24).

4. A novel reverse-blowing dust removal treatment equipment according to claim 1, characterized in that: The inlet of the reverse blower (5) is connected to the atmosphere.

5. A novel reverse blow dust removal treatment equipment according to claim 1, characterized in that: The telescopic moving device (8) includes an upper fixed pipe (81) connected to the rotating cylinder (6), a telescopic pipe (83) connected to the upper fixed pipe (81), and a lower fixed pipe (82) connected to the telescopic pipe (83). The lower end of the lower fixed pipe (82) is connected to the sealing cover plate (15).

6. A novel reverse-blowing dust removal treatment equipment according to claim 1, characterized in that: The transmission device (9) includes a protective cover (93), a positioning gear (91) arranged inside the protective cover (93), a transmission pull rope (94) cooperating with the positioning gear (91), a limit switch (92) arranged at the lower end of the positioning gear (91), and a motor (95) cooperating with the transmission pull rope (94).

7. A novel reverse-blowing dust removal treatment equipment according to claim 1, characterized in that: The lower end of the sealing cover plate (15) is provided with rolling small wheels (14).

8. A novel reverse blowing dust removal treatment equipment according to claim 1, characterized in that: A dust collection hopper (16) for receiving and storing ash after the equipment is reversely blown and cleaned is provided at the lower part of the dust collector body. A plurality of exhaust branch pipes (12) and an exhaust main pipe (13) connected to the exhaust branch pipes (12) are provided on the lower side of the dust collector body.

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