Cloth bag collector special for dust collection

Abstract

The utility model discloses a special cloth bag collector for dust collection, which comprises a stand column frame, a dust collection box, a compartment dust hopper, a rainproof shed, an air storage tank, a pulse-jet dust cleaning system and a climbing ladder, the dust collection box comprises a middle box body communicated with the compartment dust hopper, an air inlet channel arranged on the inner side of the middle box body, and an upper box body communicated with the middle box body, the upper box body air guide pipe is installed on the inner side of the upper box body, the air outlet channel is communicated with the upper box body air guide pipe, the inner layer heat preservation sealing access door and the outer layer heat preservation sealing access door are installed on the top of the upper box body, and the offline valve system is installed above the upper box body and matched with the upper box body air guide pipe to isolate adjacent dust collecting boxes. The dust removal cloth bags are arranged in the upper box body and the middle box body through bag cages; the dust collecting efficiency, stability and operability are enhanced, the dust collecting cloth bag can be prevented from being blocked, the service life of the dust collecting cloth bag is prolonged, and the dust collecting device is suitable for the industrial environment requiring efficient and stable operation.

Description

Technical Field

[0001] This utility model specifically relates to a dust collection bag collector. Background Technology

[0002] Baghouse dust collectors are widely used in the steel and metallurgical industries. Dust-laden air is filtered through the bags of the baghouse dust collector, and the dust falls into the ash hopper. It is then collected and treated by a dust collection device. Due to the special nature of dust, it is easy to generate dust during the collection process, so there are certain requirements for the structure of the dust collection device.

[0003] Most current baghouse dust collectors collect dust online, meaning they collect dust without shutting down the machine. When a certain amount of fine dust adheres to the outer surface of the filter cloth, high-pressure air is released through a blowpipe to blow the dust off the filter bags and into the dust hopper. However, this dust collection method has several drawbacks: 1. Because the baghouse dust collector operates continuously, the high-pressure airflow blowing through the filter bags causes severe dust generation, resulting in incomplete dust removal; 2. Severe dust generation can also increase... Heavy-duty baghouse dust collectors are difficult to use, and in severe cases, they can even clog the filter bags, reducing the filtration speed, accelerating the aging of the baghouse dust collector, and shortening its service life. 3. Baghouse dust collectors are installed outdoors, so they are equipped with rain shelters to protect them from sun and rain. However, most baghouse dust collectors' inspection doors are not airtight, causing toxic fumes and dust to leak out from the gaps in the inspection doors. Therefore, when performing maintenance, operators need to manually open the heavy inspection doors, which increases the workload and danger for operators and also exposes them to toxic fumes and dust. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a special bag collector for dust collection.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A dust collection baghouse includes a column frame, dust collection boxes equidistantly installed on the column frame and interconnected, a compartmentalized ash hopper installed at the bottom of the dust collection boxes and connected to them, a rainproof canopy installed above the column frame, an air storage tank installed outside the column frame, a pulse jet cleaning system installed at the top of the dust collection boxes and connected to the air storage tank, and a climbing ladder installed on the side of the column frame. The dust collection boxes include a middle box fixedly installed to the column frame and connected to the compartmentalized ash hopper, and a cleaning system installed inside the middle box. The system includes an air inlet duct, an upper housing that is fixedly installed to the column frame and connected to the middle housing, an upper housing air duct installed inside the upper housing, an air outlet duct located below the upper housing air duct and connected to it, an inner layer insulated and sealed inspection door installed on the top of the upper housing, an outer layer insulated and sealed inspection door installed on the top of the upper housing with a gap fit to the inner insulated and sealed inspection door, an offline valve system installed above the upper housing to cooperate with the upper housing air duct to isolate adjacent dust collection boxes, and dust collection bags installed inside the upper housing and the middle housing via bag cages.

[0007] Preferably, the external air inlet of the air inlet channel is equipped with an air inlet hopper, a manual regulating valve connected to the air inlet hopper, and an air inlet bend connected to the manual regulating valve.

[0008] Preferably, the upper housing air duct is equipped with a sealing port, and a sealing gasket is provided at the upper end of the sealing port.

[0009] Preferably, the offline valve system includes a drive cylinder fixedly installed with the upper housing, a drive rod extending from the output end of the drive cylinder into the air duct of the upper housing, and a sealing plate fixedly installed at the end of the drive rod.

[0010] Preferably, the rain shelter is equipped with an electric hoist.

[0011] Preferably, the pulse jet cleaning system includes an air tank connected to an air storage tank, a pulse valve connected to the air tank, an air supply pipe connected to the pulse valve at its upper end, a pulse jet pipe connected to the lower end of the air supply pipe, and nozzles equidistantly installed at the lower end of the pulse jet pipe.

[0012] Furthermore, an L-shaped angle steel is welded to the end of the pulse jet pipe.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By closing the manual regulating valve in the corresponding dust collection box and then activating the offline valve system, the sealing plate is aligned with the sealing port inside the upper box air duct. At this time, the dust collection box is disconnected from the main airflow and enters the "offline" state. Then, the corresponding pulse jet cleaning system can be activated to perform pulse jet cleaning, overcoming the disadvantages of poor online cleaning effect and incomplete cleaning.

[0015] 2. Since a single dust collection box can achieve "offline" dust removal, the dust is removed by pulse jet cleaning from top to bottom through the pulse jet cleaning system. This process can reduce dust generation, avoid clogging of the dust collector bags, and thus not affect the filtration speed and extend their service life.

[0016] 3. Using an electric hoist to lift and open the inner and outer insulated and sealed inspection doors on the top of the upper housing can reduce the workload and danger to operators, and also prevent operators from being exposed to toxic fumes and dust. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a dust collection bag filter for this utility model;

[0018] Figure 2 for Figure 1 Side view;

[0019] Figure 3 for Figure 2 A magnified view of partial view A in the middle;

[0020] Figure 4 for Figure 2 Structural diagram of the medium pulse jet cleaning system;

[0021] Figure 5 for Figure 1 Cross-sectional structural diagram. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0023] Example

[0024] A dust collection bag filter, such as Figure 1-5 As shown, it includes a column frame 1, dust collection boxes 2 that are equidistantly installed on the column frame 1 and interconnected with each other, a compartmentalized ash hopper 3 installed at the bottom of the dust collection box 2 and connected to the dust collection box 2, a rainproof canopy 4 installed above the column frame 1, an air storage tank 5 installed outside the column frame 1, a pulse jet cleaning system 6 installed at the top of the dust collection box 2 and connected to the air storage tank 5, and a climbing ladder 7 installed on the side of the column frame 1.

[0025] The dust collection box 2 includes a middle box 21 fixedly installed with the column frame 1 and connected to the compartment ash hopper 3; an air inlet channel 22 installed inside the middle box 21; an upper box 23 fixedly installed with the column frame 1 and connected to the middle box 21; an upper box air duct 24 installed inside the upper box 23; an air outlet channel 25 located below the upper box air duct 24 and connected to the upper box air duct 24; an inner insulation and sealing inspection door 26 installed on the top of the upper box 23; an outer insulation and sealing inspection door 27 installed on the top of the upper box 23 and clearance-fitted with the inner insulation and sealing inspection door 26; an offline valve system 28 installed above the upper box 23 and working with the upper box air duct 24 to isolate adjacent dust collection boxes 2; and dust collection bags 29 installed inside the upper box 23 and the middle box 21 via bag cages.

[0026] In the structure of the dust collection box 2, an air inlet hopper 221 is installed on the external air inlet part of the air inlet channel 22, a manual regulating valve 222 is connected to the air inlet hopper 221, and an air inlet bend 223 is connected to the manual regulating valve 222.

[0027] During operation, dust-laden gas enters the middle chamber 21 of each dust collection box 2 through the inlet hopper 221, manual regulating valve 222, and inlet bend 223. Then, guided by the middle chamber 21, it enters the compartment hopper 3. During this process, coarse dust particles fall directly into the bottom of the compartment hopper 3, while fine dust particles are evenly introduced into the dust collection bags 29 inside the middle chamber 21 and the upper chamber 23 by the airflow and accumulate on the outer surface of the dust collection bags. Then, the gas is discharged through the upper chamber duct 24 and the outlet duct 25.

[0028] In the structure of the dust collection box 2, a sealing port 241 is installed inside the upper box air duct 24, and a sealing gasket 242 is provided at the upper end of the sealing port 241.

[0029] In the structure of the dust collection box 2, the offline valve system 28 includes a drive cylinder 281 fixedly installed with the upper box body 23, a drive rod 282 extending from the output end of the drive cylinder 281 into the interior of the upper box body air duct 24, and a sealing plate 283 fixedly installed at the end of the drive rod 282. Specifically, the sealing plate 283 is aligned with the sealing opening 241 inside the upper box body air duct 24. The drive cylinder 281 drives the drive rod 282 to press the sealing plate 283 against the sealing opening 241, and the sealing gasket 242 improves the sealing effect.

[0030] When performing pulse jet cleaning on one of the dust collection boxes 2 of the dust collection bag filter, close the manual adjustment valve 222 in the corresponding dust collection box 2, and then start the offline valve system 28 so that the sealing plate 283 is aligned with the sealing port 241 inside the upper box air duct 24. At this time, the dust collection box is disconnected from the main airflow and enters the "offline" state. Then the corresponding pulse jet cleaning system 6 can be started to perform pulse jet cleaning.

[0031] The rain shelter 4 is equipped with an electric hoist 41. Specifically, during maintenance, the inner insulation and sealing maintenance door 26 and the outer insulation and sealing maintenance door 27 on the top of the upper box 23 can be lifted and opened by the electric hoist 41, which can reduce the workload and danger to the operators, and also prevent the operators from being exposed to toxic fumes and dust.

[0032] The pulse jet cleaning system 6 includes an air tank 61 connected to the air storage tank 5, a pulse valve 62 connected to the air tank 61, an air supply pipe 63 connected to the pulse valve 62 at its upper end, a pulse jet pipe 64 connected to the lower end of the air supply pipe 63, and nozzles 65 equidistantly installed at the lower end of the pulse jet pipe 64. Specifically, the lower end of the air supply pipe 63 passes through the upper housing 23 and is fixedly installed to the upper housing 23 to support the air tank 61.

[0033] It should be further explained that compressed air is injected from the air tank 61 through the pulse valve 62 and the nozzle 65 on the pulse jet pipe 64 into the dust collector bag 29. Under the action of instantaneous injection and reverse airflow, the dust adhering to the outside of the dust collector bag 29 is shaken off into the compartment ash hopper 3, and finally the dust is discharged from the compartment ash hopper 3.

[0034] The end of the pulse jet pipe 64 is welded with an L-shaped angle steel 641. Specifically, the L-shaped angle steel 641 is fixed to the frame inside the upper housing 23 by bolts, which can reinforce the installation of the pulse jet pipe 64 and prevent it from swaying during operation.

[0035] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A dust collection baghouse, comprising a column frame, dust collection boxes equidistantly mounted on the column frame and interconnected thereto, a compartmented ash hopper mounted at the bottom of the dust collection boxes and connected to the dust collection boxes, a rainproof canopy mounted above the column frame, an air storage tank mounted outside the column frame, a pulse jet cleaning system mounted on the upper end of the dust collection boxes and connected to the air storage tank, and a climbing ladder mounted on the side of the column frame, characterized in that... The dust collecting box comprises a middle box body fixedly installed with the stand column frame and communicated with the compartmentalized dust hopper, an air inlet channel installed inside the middle box body, an upper box body fixedly installed with the stand column frame and communicated with the middle box body, an upper box body air guide pipe installed inside the upper box body, an air outlet channel communicated with the upper box body air guide pipe below the upper box body air guide pipe, an inner heat preservation sealing access door installed on the top of the upper box body, an outer heat preservation sealing access door installed on the top of the upper box body and matched with the gap of the inner heat preservation sealing access door, an offline valve system installed above the upper box body and matched with the upper box body air guide pipe to isolate adjacent dust collecting boxes, and dust removal cloth bags installed inside the upper box body and the middle box body through the bag cages.

2. The dedicated baghouse for dust collection according to claim 1, wherein An air inlet dust hopper is installed at the outer air inlet part of the air inlet channel, a manual regulating valve is installed in butt joint with the air inlet dust hopper, and an air inlet elbow is installed in butt joint with the manual regulating valve.

3. The dedicated baghouse for dust collection according to claim 1, wherein A sealing gasket is arranged at the upper end of the plugging opening installed inside the upper box body air guide pipe.

4. The dedicated baghouse for dust collection according to claim 1, wherein The offline valve system comprises a driving cylinder fixedly installed with the upper box body, a driving rod extended from the output end of the driving cylinder to the inside of the upper box body air guide pipe, and a plugging plate fixedly installed at the end of the driving rod.

5. The dedicated baghouse for dust collection according to claim 1, wherein An electric hoist lifting machine is installed on the rainproof shed.

6. The dedicated baghouse for dust collection according to claim 1, wherein The pulse jet dust removal system comprises a gas pocket communicated with the gas storage tank, a pulse valve communicated in butt joint with the gas pocket, an air supply pipe communicated in butt joint with the pulse valve at the upper end, a pulse jet pipe communicated in butt joint with the lower end of the air supply pipe, and nozzles installed at equal intervals at the lower end of the pulse jet pipe.

7. The dedicated baghouse for dust collection according to claim 6, wherein An L-shaped angle steel is welded at the end of the pulse jet pipe.

Images