阅读说明：本技术 一种用于废气除尘的环保设备 (environment-friendly equipment for waste gas dust removal ) 是由 何川 孙建薇 王延让 于 2019-10-09 设计创作，主要内容包括：本发明涉及一种用于废气除尘的环保设备。包括箱体和接灰斗,接灰斗采用支架支撑；在箱体的顶部安装有支座,在支座上安装有离心通风机以及驱动电机,还包括风道,风道连接在离心通风机的入口与箱体顶部的排气管之间；在接灰斗的侧壁上安装有延伸至内腔的进气组件,在接灰斗的底部安装有卸灰组件；在箱体的侧壁上设有检修口,在检修口上设有箱门；在箱体的内腔安装有多个滤袋组件,在箱体的内腔的顶部设有摇摆组件,在箱体内腔的底部设有固定底板；滤袋组件包括滤袋本体,在滤袋本体的顶部通过吊带与装载支架固定连接,在各滤袋本体的底部均设有密封固定套箍,各密封固定套箍分位于各板孔内。本发明结构简单、废气处理能力强、便于清理维护。(The invention relates to environment-friendly equipment for waste gas dust removal, which comprises a box body and an ash receiving hopper, wherein the ash receiving hopper is supported by a support, a support is arranged at the top of the box body, a centrifugal fan and a driving motor are arranged on the support, the air duct is connected between an inlet of the centrifugal fan and an exhaust pipe at the top of the box body, an air inlet assembly extending to an inner cavity is arranged on the side wall of the ash receiving hopper, an ash discharging assembly is arranged at the bottom of the ash receiving hopper, an access hole is formed in the side wall of the box body, a box is arranged on the access hole, a plurality of filter bag assemblies are arranged in the inner cavity of the box body, a swinging assembly is arranged at the top of the inner cavity of the box body, a fixed bottom plate is arranged at the bottom of the inner cavity of the box body, each filter bag assembly comprises a filter bag body, the top of each filter bag body is fixedly connected with the loading support through a hanging strip, a sealing fixed hoop is arranged at the bottom of each filter.)

The environment-friendly equipment for waste gas dust removal is characterized by comprising a box body (11) positioned at the upper part, an ash receiving hopper (14) positioned at the lower part, a support (15) used for supporting the ash receiving hopper (14), a support (1) arranged at the top of the box body (11), a centrifugal fan (4) and a driving motor (2) used for driving the centrifugal fan (4) arranged on the support (1), and an air duct (5), wherein the air duct (5) is connected between an inlet of the centrifugal fan (4) and an exhaust pipe arranged at the top of the box body (11), an air inlet assembly (13) extending to an inner cavity is arranged on the side wall of the ash receiving hopper (14), an ash discharging assembly (16) is arranged at the bottom of the ash receiving hopper (14), an access hole is formed in the side wall of the box body (11), and a box (10) is arranged on the access hole;

the swing type dust collector comprises a box body (11), a plurality of filter bag assemblies (17) are installed in an inner cavity of the box body (11), a swing assembly (8) for driving each filter bag assembly (17) to swing is arranged at the top of the inner cavity of the box body (11), a fixed bottom plate (18) is arranged at the bottom of the inner cavity of the box body (11), the swing assembly (8) comprises a plurality of swing rotating shafts (8-5) which are fixedly installed between side walls of the box body (11) through shaft seats (8-4) and second shaft seats (8-7), loading supports (8-6) are installed on each swing rotating shaft (8-5), connecting rods (8-3) are installed at the outer ends of the same side of each swing rotating shaft (8-5), a linkage shaft (8-8) is further included, the linkage shaft (8-8), the end portion of each connecting rod (8-3) is hinged with the corresponding shaft (8-8), a swing motor (7) is further included, an eccentric turntable (8-1) is installed on a motor shaft of the motor, a pull rod (8-2) is further included, the upper end of the pull rod (8-2) is eccentrically hinged on the eccentric turntable (8-1), the fixed bottom plate hole of the corresponding filter bag assembly, the bottom of the filter bag assembly (17), the bottom plate is connected with a hanging strip (1) through a sealing ring (18), the bottom plate (17-1), the bottom plate (18) and a sealing ring (17) is arranged at the bottom of each filter bag assembly, the bottom plate (1), the bottom plate (18), the bottom plate (4-3) and a.

2. The environmental protection equipment for dust removal of exhaust gas according to claim 1, wherein the support (1) is further provided with a transmission shaft (3), the end of the transmission shaft (3) is in butt joint with the motor shaft of the driving motor (2), and the end of the transmission shaft is in butt joint with the rotating shaft of the centrifugal fan (4).

3. The eco-friendly apparatus for exhaust gas dust removal according to claim 1, wherein: the loading support (8-6) is made of square steel and is welded and fixed with the swinging rotating shaft (8-5); the filter bag assembly (17) further comprises an anchor ear (17-1), the anchor ear (17-1) is fixedly arranged on each loading support (8-6) through screws, and the upper end of a hanging strip (17-3) of the filter bag assembly (17) is fixedly connected with the anchor ear (17-1) through a buckle (17-2).

4. The eco-friendly apparatus for exhaust gas dust removal according to claim 1, wherein: the air inlet assembly (13) comprises a transverse air inlet pipe (13-1), and the middle part of the air inlet pipe (13-1) is fixedly connected with the side wall of the ash receiving hopper (14) in a sealing way; an inner end plate (13-2) is arranged at the inner end of the air inlet pipe (13-1), a flange plate is arranged at the outer end, and an air outlet (13-3) is also arranged at the bottom of the inner end of the air inlet pipe (13-1).

5. The eco-friendly apparatus for exhaust gas dust removal according to claim 1, wherein: the ash discharging component (16) comprises an outer sleeve, and the upper end of the outer sleeve is in butt joint connection with the bottom of the ash receiving hopper (14) through a flange plate; a rotatable blanking roller shaft with a material groove on the outer wall is arranged in the outer sleeve, and a blanking motor for driving the blanking roller shaft to rotate is also arranged on the outer sleeve.

6. The eco-friendly apparatus for exhaust gas dust removal according to claim 1, wherein: the bottom of the box body (11) and the top of the ash receiving hopper (14) are both provided with flange plates, the edge of the bottom plate body (18-1) of the fixed bottom plate (18) is provided with a connecting hole, and the edge of the bottom plate body (18-1) is positioned between the flange plate of the box body (11) and the flange plate of the ash receiving hopper (14) and is fixedly connected by bolts.

7. The eco-friendly apparatus for exhaust gas dust removal according to claim 6, wherein: a plurality of reinforcing ribs (18-2) are arranged on the bottom plate body (18-1).

8. The environment-friendly equipment for exhaust gas dust removal as set forth in claim 1, wherein the sealing fixing hoop (17-5) is made of rubber and formed by injection molding of bodies, the upper edge of the sealing fixing hoop (17-5) is connected with the bottom edge of the filter bag body (17-4) in a hot melting mode, bodies are formed on the outer wall of the sealing fixing hoop (17-5) in an injection molding mode to form an annular groove, and when the sealing fixing hoop (17-5) is embedded into the corresponding plate hole (18-3), the inner edge of the plate hole (18-3) falls into the groove.

9. The environmental protection equipment for exhaust gas dust removal according to claim 1, wherein the box (10) is hinged with the box body (11) by an upper hinge (9) and a lower hinge (9), a plurality of locking handles (12) for locking the box (10) in a closed state are further installed on the outer wall of the box body (11), and a sealing gasket is arranged between the inner side of the box (10) and the access opening.

10. The eco-friendly apparatus for exhaust gas dust removal according to claim 1, wherein: an air exhaust chimney (6) is arranged at the outlet of the centrifugal ventilator (4).

Technical Field

The invention belongs to the technical field of environment-friendly equipment, and particularly relates to environment-friendly equipment for waste gas dust removal.

Background

Dust is almost ubiquitous and soils and rocks break down into many fine particles after weathering, which drift in the air with pollen, spores and other organic particles. In addition, many dusts are by-products of the development of industry and transportation; the exhaust gases from chimneys and internal combustion engines also contain a large amount of volcanic ash erupting from the operation of flours, quarries, etc. 1. Mechanical processing or crushing of solid matter, such as metal grinding, cutting, drilling, blasting, crushing, milling, processing of agricultural and forestry products, etc.; 2. dust particles formed by condensing or oxidizing steam generated when the substance is heated in the air, such as metal smelting, welding, casting and the like; 3. particles formed by incomplete combustion of organic substances, such as smoke and dust generated during combustion of wood, oil, coal and the like; 4. the operation processes of foundry and sand cleaning powdery substances of the casting, such as mixing, sieving, packaging, carrying and the like, and the deposited dust is heavy and floats in the air due to vibration or airflow movement, so that the deposited dust is also a source of the dust.

The waste gas purification mainly refers to the treatment of industrial waste gas generated in industrial places, such as dust particles, smoke and dust, peculiar smell gas and toxic and harmful gas. Common waste gas purification includes factory smoke waste gas purification, workshop dust waste gas purification, organic waste gas purification, waste gas peculiar smell purification, acid-base waste gas purification, chemical waste gas purification and the like. Dust-containing waste gas is generated in various industrial production occasions, and specifically comprises industries such as wood processing, stone processing, chemical production, grain processing and the like.

In modern industry, the disposal of dust-containing waste gases before discharge has become an essential requirement. The dust-containing waste gas is treated mainly by filtering, and the waste gas is guided to pass through the filtering component, so that particulate matters in the dust are trapped and collected, and the purpose of discharging dust particles in the environment which is not similar to the surrounding environment is achieved. The processing capacity of current environmental protection equipment to dust waste gas is lower, because the particulate matter in the dust blocks up filter assembly's filtration pore easily, therefore filter assembly needs regularly to clear up, and current dust treatment equipment is not convenient for above-mentioned clearance maintenance operation.

Disclosure of Invention

The invention provides kinds of environment-friendly equipment for waste gas dust removal, which has reasonable structure, strong waste gas treatment capacity and convenient cleaning and maintenance, and is used for solving the technical problems in the prior art.

The technical scheme includes that the environment-friendly equipment for removing dust from waste gas comprises a box body located at the upper portion, a dust receiving hopper located at the lower portion, a support is mounted at the top of the box body, a centrifugal fan and a driving motor for driving the centrifugal fan are mounted on the support, an air duct is connected between an inlet of the centrifugal fan and an exhaust pipe at the top of the box body, an air inlet assembly extending to an inner cavity is mounted on the side wall of the dust receiving hopper, a dust discharging assembly is mounted at the bottom of the dust receiving hopper, an access opening is formed in the side wall of the box body, a box is arranged on the access opening, a plurality of filter bag assemblies are mounted in the inner cavity of the box body, a swinging assembly for driving and swinging each filter bag assembly is arranged at the top of the inner cavity of the box body, a fixed bottom plate is arranged at the bottom of the inner cavity of the box body, the swinging assembly comprises a plurality of swinging rotating shafts fixedly mounted between the side walls of the box body by and second shaft seats, loading supports are mounted on the swinging assemblies, connecting rods are mounted on the same side of the swinging shaft seats, the swinging assemblies are hinged to the outer ends of the rotating shafts, the rotating shafts are hinged to the rotating disc bodies, the rotating disc bodies are hinged to the rotating disc bodies, the rotating shafts are hinged to the rotating disc bodies, the rotating shafts, the.

The invention has the advantages and positive effects that the environment-friendly equipment for dust removal of waste gas with structural designs is provided, compared with the existing dust removal environment-friendly equipment, the technical scheme is that the box body is arranged, the filter bag assemblies are arranged in the box body, multi-channel filtration treatment of waste gas containing dust is realized, the trapped dust falls downwards and is received by the dust receiving hopper, and the purified air is upwards discharged through the centrifugal ventilator, so that continuous filtration and dust removal treatment is realized, the treatment capacity is strong, the swinging assembly is arranged at the top of the inner cavity of the box body, synchronous swinging drive of the filter bag assemblies is realized, the filter bag assemblies still have fixed swinging effect in the process of filtration and dust removal, the dust attachment speed on the filter bag bodies can be reduced, the dust attached to the filter bag bodies is desorbed and falls downwards under the swinging action, the environment-friendly equipment can be in a stable working state within a long time, the maintenance port is arranged on the side wall of the box body, the box is arranged on the maintenance port, maintenance personnel can enter the interior of the box body through opening , the maintenance of the box body, the filter bag assemblies can be quickly maintained, and the environment-friendly equipment can be maintained conveniently and can be maintained for a long time.

Preferably, a transmission shaft is further mounted on the support, an end of the transmission shaft is in butt joint with a motor shaft of the driving motor, and the end of the transmission shaft is in butt joint with a rotating shaft of the centrifugal fan.

Preferably: the loading support is made of square steel and is welded and fixed with the swinging rotating shaft; the filter bag assembly further comprises an anchor ear, the anchor ear is fixedly arranged on each loading support through screws, and the upper end of a hanging strip of the filter bag assembly is fixedly connected with the anchor ear through a buckle.

Preferably: the air inlet assembly comprises a transverse air inlet pipe, and the middle part of the air inlet pipe is fixedly connected with the side wall of the ash receiving hopper in a sealing way; the inner end of the air inlet pipe is provided with an inner end plate, the outer end of the air inlet pipe is provided with a flange plate, and the bottom of the inner end of the air inlet pipe is also provided with an air outlet.

Preferably: the ash discharging component comprises an outer sleeve, and the upper end of the outer sleeve is in butt joint connection with the bottom of the ash receiving hopper through a flange plate; a rotatable blanking roller shaft with a material groove on the outer wall is arranged in the outer sleeve, and a blanking motor for driving the blanking roller shaft to rotate is also arranged on the outer sleeve.

Preferably: the bottom of the box body and the top of the ash receiving hopper are both provided with flange plates, the edge of the bottom plate body of the fixed bottom plate is provided with a connecting hole, and the edge of the bottom plate body is positioned between the flange plates of the box body and the ash receiving hopper and is fixedly connected by bolts.

Preferably: the bottom plate body is provided with a plurality of reinforcing ribs.

Preferably, the sealing fixing hoop is made of rubber, the body is obtained through injection molding, the upper edge of the sealing fixing hoop is connected with the bottom edge of the filter bag body in a hot melting mode, the body is formed into an annular groove in an injection molding mode on the outer wall of the sealing fixing hoop, and when the sealing fixing hoop is embedded into the corresponding plate hole, the inner edge of the plate hole falls into the groove.

Preferably, box is hingedly connected to the box using upper and lower hinges, a plurality of locking handles are mounted on the outer wall of the box to lock box in a closed position, and a sealing gasket is provided between the inside of box and the access opening.

Preferably: an air exhaust chimney is arranged at the outlet of the centrifugal ventilator.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a side elevation, partially cross-sectional structural schematic of the present invention;

FIG. 3 is a front view schematically showing the structure of the case portion of the present invention;

FIG. 4 is a schematic view showing the construction of the rocking device of the present invention;

FIG. 5 is a schematic view showing the construction of the rocking device of the present invention;

FIG. 6 is a partial sectional view of the ash receiving hopper portion of the present invention;

FIG. 7 is a schematic top view of the mounting plate of the present invention;

FIG. 8 is a schematic view showing the structure of a filter bag portion in the present invention.

In the figure, the device comprises a support 1, a driving motor 2, a transmission shaft 3, a centrifugal fan 4, an air duct 5, an air exhaust chimney 6, a swinging motor 7, a swinging assembly 8-1, an eccentric turntable 8-2, a pull rod 8-3, a connecting rod 8-4, an -th shaft seat 8-5, a swinging rotating shaft 8-6, a loading support 8-7, a second shaft seat 8-8, a linkage shaft 9, a hinge 10, a box , a box body 11, a locking handle 12, a locking handle 13, an air inlet assembly 13-1, an air inlet pipe 13-2, an inner end plate 13-3, an air outlet 14, an ash receiving hopper 15, a support 16, an ash discharging assembly 17, a filter bag assembly 17-1, a hoop 17-2, a buckle 17-3, a hanging belt 17-4, a filter bag body 17-5, a sealing and fixing hoop 18, a fixing bottom plate 18-1, a bottom plate body 18-2, a reinforcing rib plate hole 18-3 and a plate hole 18-3.

Detailed Description

To further understand the contents, features and effects of the invention, the following examples are given in detail:

referring to fig. 1, 2 and 3, the environmental protection equipment for exhaust gas dust removal of the present invention is provided with an upper box 11 and a lower ash receiving hopper 14, wherein the ash receiving hopper 14 is supported by a bracket 15, and the bracket 15 can be anchored on the ground of a workshop by using ground anchors. The dust filtered and trapped by the environmental protection equipment enters the dust receiving hopper 14 for storage and is periodically discharged.

The top of the box body 11 is provided with a support 1, the support 1 is provided with a centrifugal fan 4 and a driving motor 2 for driving the centrifugal fan 4, and the air-conditioning box further comprises an air duct 5, and the air duct 5 is connected between an inlet of the centrifugal fan 4 and an exhaust pipe at the top of the box body 11. Under the driving action of the driving motor 2, the centrifugal ventilator 4 runs at a high speed, and continuously exhausts the air in the box body 11 to the outside through the exhaust pipe and the air duct 5.

In this embodiment, the support 1 is further provided with a transmission shaft 3, an end of the transmission shaft 3 is in butt joint with a motor shaft of the driving motor 2, and another end is in butt joint with a rotating shaft of the centrifugal fan 4.

In this embodiment, an exhaust chimney 6 is provided at an outlet of the centrifugal fan 4, and clean air obtained by filtering the dust-containing exhaust gas is exhausted from the exhaust chimney 6 to the surrounding environment under the action of the centrifugal fan 4.

Referring to fig. 6, an air inlet assembly 13 extending to the inner cavity is installed on the side wall of the ash receiving hopper 14, and an ash discharging assembly 16 is installed at the bottom of the ash receiving hopper 14, wherein the air inlet assembly 13 is used for feeding waste gas containing dust into the environmental protection equipment, and the ash discharging assembly 16 is used for periodically discharging collected dust from the ash receiving hopper 14.

In the embodiment, the air inlet assembly 13 comprises a transverse air inlet pipe 13-1, and the middle part of the air inlet pipe 13-1 is fixedly connected with the side wall of the ash receiving hopper 14 in a sealing way; the inner end of the air inlet pipe 13-1 is provided with an inner end plate 13-2, the outer end is provided with a flange plate, and the bottom of the inner end of the air inlet pipe 13-1 is also provided with an air outlet 13-3. The effect of arranging the air outlet 13-3 at the bottom of the inner end is: effectively preventing the dust falling from the upper part from falling into the air outlet 13-3. The connection of the inlet assembly 13 to the exhaust gas collection/delivery line is facilitated by the provision of a flange at the outer end.

In the embodiment, the ash discharging component 16 comprises an outer sleeve, the upper end of the outer sleeve is in butt joint with the bottom of the ash receiving hopper 14 through a flange plate, a rotatable blanking roller shaft with a trough on the outer wall is arranged in the outer sleeve, a blanking motor for driving the blanking roller shaft to rotate is further arranged on the outer sleeve, the blanking roller shaft rotates under the driving of the blanking motor, dust falls into the trough, the dust is brought to the outside in the rotating process of the blanking roller shaft and falls under the action of self gravity, and the essence of the structure of the ash discharging component 16 is rotary blanking devices.

Referring to fig. 1 and 3, an access opening is formed in a side wall of a box body 11, a box is disposed on the access opening, the access opening can be exposed by opening the box 10, and an inspector can access the inside of the box body 11 through the access opening to inspect, as can be seen from the figure, the box is hinged to the box body 11 by using upper and lower hinges 9, a plurality of locking handles 12 for locking the box 11 in a closed state are further mounted on an outer wall of the box body 11, a plurality of locking tongues with slots are disposed on the box , when the box 10 is closed, the locking handles 12 fall into the corresponding slots, the locking handles 12 are rotated by 90 °, and the locking of the box 11 is completed.

Referring to fig. 4 and 5, a plurality of filter bag assemblies 17 are installed in the cavity of the box 11, a swing assembly 8 for driving each filter bag assembly 11 to swing is installed at the top of the cavity of the box 11, and a fixed bottom plate 18 is installed at the bottom of the cavity of the box 11, the filter bag assemblies 17 trap dust particles in the process of dust-containing exhaust gas flowing therethrough, the dust will gradually adhere to the inner walls of the filter bag assemblies 17, the swing assembly 8 provides action effects of continuous reciprocating swing for each filter bag assembly 17, which is beneficial to slow down the speed of dust adhering to the filter bag assembly 17, and desorb and drop the dust particles which have adhered, and maintain the working efficiency of the filter bag assembly 17 for a long time, the fixed bottom plate 18 is used for fixing the lower ends of the filter bag assemblies 17, that is, each filter bag assembly 17 is not floated in the cavity of the box 11 but fixed in an upright state, so that a good filtering effect can be ensured.

The swinging assembly 8 comprises a plurality of swinging rotating shafts 8-5 which are fixedly arranged between the side walls of the box body 11 by adopting a plurality of groups of shaft seats 8-4 and second shaft seats 8-7, each swinging rotating shaft 8-5 is provided with a loading support 8-6, the outer end of each swinging rotating shaft 8-5 at the same side is provided with a connecting rod 8-3, as shown in the figure, the shaft seat 8-4 is arranged on the outer wall of the box body 11, the second shaft seats 8-7 are arranged on the inner wall of the box body 11, each connecting rod 8-3 is arranged at the outer end part of each swinging rotating shaft 8-5 positioned on the shaft seat 8-4, as shown in the figure 5, connecting rods 8-3 positioned at the end part are L-shaped, and the rest connecting rods 8-3 are flat and.

In the embodiment, the loading bracket 8-6 is made of square steel and is welded and fixed with the swinging rotating shaft 8-5; specifically, the square steel is cut into square steel sections with proper lengths, end plates are welded at two ends, shaft holes are formed in the centers of the two end plates, and the swinging rotating shaft 8-5 penetrates through the shaft holes and is fixedly welded with the end plates and the swinging rotating shaft 8-5.

The device also comprises a linkage shaft 8-8, the end parts of the connecting rods 8-3 are hinged with the linkage shaft 8-8, and further comprises a swing motor 7 (the swing motor 7 is arranged at the top of the box body 11), an eccentric turntable 8-1 is arranged on a motor shaft of the swing motor, and a pull rod 8-2, wherein the upper end of the pull rod 8-2 is eccentrically hinged on a disk body of the eccentric turntable 8-1, the lower end of the pull rod is hinged with connecting rods 8-3 (the L-shaped connecting rod 8-3 positioned at the outermost side), concretely, a core shaft is eccentrically arranged on the disk body of the eccentric turntable 8-1, a shaft sleeve is arranged at the upper end of the pull rod 8-2, and the shaft sleeve is sleeved on a core shaft of the eccentric turntable 8-1, the motion mode is that the swing motor 7 drives the eccentric turntable 8-1 to stably rotate, so that the pull rod 8-2 has combined motions of left-right swinging and lifting movement, the motion is transmitted to the linkage shaft 8-8 through the L-3 in a lever mode, the linkage shaft 8-8 drives each swinging rotating shaft 8-5 to synchronously swing the reciprocating motion components, and the reciprocating motion effect.

Referring to fig. 7, it can be seen that the fixed bottom plate 18 includes a bottom plate body 18-1, a plurality of plate holes 18-3 are formed on the bottom plate body 18-1, the fixed bottom plate 18 is formed by stamping and cutting a metal plate of , in this embodiment, flanges are respectively disposed at the bottom of the box body 11 and the top of the ash receiving hopper 14, a connecting hole is disposed at the edge of the bottom plate body 18-1 of the fixed bottom plate 18, the edge of the bottom plate body 18-1 is disposed between the flange of the box body 11 and the flange of the ash receiving hopper 14 and fixedly connected by bolts, a sealing gasket can be disposed between the flanges to ensure sealing, and a plurality of reinforcing ribs 18-2 are disposed on the bottom plate body 18-1 to increase the overall structural strength.

Referring to fig. 8, it can be seen that: the filter bag assembly 17 comprises a filter bag body 17-4 with a sealed top and an open bottom, the top of the filter bag body 17-4 is fixedly connected with a loading support 8-6 through a hanging strip 17-3, the bottom of each filter bag body 17-4 is provided with a sealing fixed hoop 17-5, and each sealing fixed hoop 17-5 is positioned in each plate hole 18-3. In the embodiment, the filter bag assembly 17 further comprises an anchor ear 17-1, the anchor ear 17-1 is fixedly arranged on each loading support 8-6 through screws, and the upper end of a hanging strip 17-3 of the filter bag assembly 17 is fixedly connected with the anchor ear 17-1 through a buckle 17-2.

In the embodiment, the sealing and fixing hoop 17-5 is made of rubber, the body is obtained by injection molding, the upper edge of the sealing and fixing hoop 17-5 is in hot melting connection with the bottom edge of the filter bag body 17-4, the body is formed on the outer wall of the sealing and fixing hoop 17-5 by injection molding to form an annular groove, when the sealing and fixing hoop 17-5 is embedded into the corresponding plate hole 18-3, the inner edge of the plate hole 18-3 falls into the groove, and the sealing and fixing hoop 17-5 is embedded and clamped in the plate hole 18-3 through the extrusion deformation effect of the rubber material.

The working process is as follows:

the air inlet assembly 13 is connected with a waste gas supply pipeline through a flange plate at the outer end, dust-containing waste gas enters along an air inlet pipe 13-1 under the combined action of a blower and a centrifugal ventilator 4 on the waste gas supply pipeline and enters an inner cavity of a dust receiving hopper 14 through an air outlet 13-3, and then the waste gas flows upwards and enters a filter bag body 17-4 through sealing and fixing cuffs 17-5 on a fixing bottom plate 18 to form multi-channel filtration;

dust particles are intercepted when the waste gas passes through the side wall of the filter bag body 17-4, and clean air continues to go upwards through the exhaust pipe and the air duct 5 at the top of the box body 11 and is finally discharged to the surrounding environment through the exhaust chimney 6 under the action of the centrifugal ventilator 4;

the dust trapped by the filter bag body 17-4 is adsorbed on the inner wall of the filter bag body, because the equipment operates for times and stops for times (also can be called as a pulse type operation mode), in the intermittent time of stopping, the dust is desorbed and falls downwards under the action of the self gravity and the swinging driving action of the swinging assembly 8, and finally enters the dust receiving hopper 14 for storage, the dust discharging assembly 16 is opened at regular time, and the accumulated dust is discharged;

when the filter box is in operation for a long time, the filter holes of the filter bag bodies 17-4 of the filter bag assemblies 17 are blocked, the filtering efficiency is reduced, and shutdown maintenance is needed at the moment, during maintenance, the box 10 is opened, maintenance personnel enter the box body 11, the filter bag assemblies 17 with problems are detached from the loading supports 8-6 and the fixed bottom plate 18 and are sent out from an access hole, new filter bag assemblies 17 can be replaced or the filter bag assemblies 17 can be installed again after being cleaned, and the device can be put into operation again after the box 10 is closed.