CN116139621B

CN116139621B - Pulse cloth bag dust collector

Info

Publication number: CN116139621B
Application number: CN202310443778.9A
Authority: CN
Inventors: 赵静; 韩洪洲; 何同忠; 郭长春; 南晨光
Original assignee: Botou Dahua Environmental Protection Engineering Co ltd
Current assignee: Botou Dahua Environmental Protection Engineering Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-06-30
Anticipated expiration: 2043-04-24
Also published as: CN116139621A; CN116139621B9

Abstract

The invention relates to the technical field of dust removal equipment, and particularly provides a pulse cloth bag dust removal device; the device comprises a cylindrical and vertically arranged dust removal bin body, wherein a rotary mechanism which is driven to intermittently rotate around the central axis is arranged in the dust removal bin body, and a plurality of cloth bag assemblies which are uniformly distributed around the circumference of a rotary central axis are arranged on the rotary mechanism; compared with the existing cloth bag dust removing device which adopts the mode of stopping air and removing dust to carry out dust removing operation, the device provided by the invention does not need to stop air and remove dust, in actual work, continuous dust removing and purifying operation is not affected, and enough time can be ensured to carry out pulse dust removing treatment on the dust removing cloth bag in a dust removing empty area while the dust removing operation is carried out, so that intermittent dust removing treatment can be carried out one by one while the dust removing operation is carried out continuously, the dust removing operation time is not occupied intermittently in the dust removing process, and the dust removing continuity and dust removing efficiency can be effectively ensured.

Description

Pulse cloth bag dust collector

Technical Field

The invention relates to the technical field of dust removal equipment, and particularly provides a pulse cloth bag dust removal device.

Background

The pulse cloth bag dust collector is one kind of dust collector based on cloth bag dust collector and with pulse blowing ash eliminating technology. The cloth bag is generally made of woven filter cloth or non-woven felt, dust-containing gas is filtered by utilizing the filtering effect of fiber fabric, and when the dust-containing gas enters the bag-type dust collector, dust with large particles and large specific gravity falls down due to the effect of gravity and falls into an ash bucket, and when the gas containing finer dust passes through the cloth bag, the dust is blocked, so that the gas is dedusted.

In the actual working process, the blocked fine dust is continuously adhered and accumulated on the surface of the cloth bag, in order to maintain higher clean air discharge efficiency of the cloth bag, periodic cloth bag dust removal treatment is needed, when dust-containing air flow adopts a lower inlet and upper outlet arrangement mode, in order to avoid the interference of the air flow, the dust cleaned from the cloth bag is ensured to be separated from the bag surface and to be settled in an ash bucket in time, the settled dust can be discharged quickly, the pulse dust removal treatment is usually needed under the condition of stopping air, and the existing pulse cloth bag dust removal device is basically provided with only one shared filter chamber space, namely, the dust removal device is in a stop state in the process of stopping air and removing dust, continuous dust removal operation is not beneficial to continuous promotion of dust removal work when the dust removal device is in a working environment with higher dust removal pressure, and especially when the dust removal device has the defects of shorter dust removal period and longer dust removal time.

Disclosure of Invention

In order to solve the above problems, the present invention provides a pulse bag-type dust collector for solving the problems mentioned in the background art.

In order to achieve the above purpose, the present invention is implemented by adopting the following technical scheme: the utility model provides a pulse sack dust collector, includes the cylindric and the vertical dust removal storehouse body that sets up, the internal slewing mechanism that is equipped with of dust removal storehouse around its central axis intermittent type gyration drive, be equipped with a plurality of sack assemblies that evenly distributed around the gyration central axis circumference on the slewing mechanism.

A plurality of cylindrical channels with the same number as the total assembly of the cloth bags are uniformly distributed on the circumference of the bottom end of the dust removal bin body; the cross section of the dust removing bin body is divided into two channel areas of a clean air channel and a pulse channel in an area above the cloth bag assembly, one of the cylinder channels and the pulse channel are arranged oppositely in the vertical direction, the top of the dust removing bin body is provided with a pulse device for pulse dust removal, and the pulse device is vertically communicated into the pulse channel downwards; the cloth bag assembly is provided with an independent filtering chamber cavity, and the bottom end of the filtering chamber cavity is provided with an opposite port which can be independently communicated with the circular tube channel.

When the rotating mechanism drives a plurality of cloth bag assemblies to intermittently rotate, and one butt joint port of one cloth bag assembly is independently communicated with one circular tube channel below the pulse channel, a top end air purifying port of the cloth bag assembly below the pulse channel is independently communicated with the pulse channel, butt joint ports of the rest of the cloth bag assemblies are in one-to-one independent butt joint communication with the rest of the circular tube channels, and the top end air purifying ports of the rest of the cloth bag assemblies are jointly communicated with the air purifying channel.

Preferably, the cloth bag assembly comprises a keel frame, a dust removing cloth bag sleeved on the keel frame and a filter chamber cover assembled on the keel frame, wherein the dust removing cloth bag is arranged in the filter chamber cover, and the filter chamber cavity is formed by an annular inner cavity surrounded by the dust removing cloth bag and the filter chamber cover.

Preferably, an elastic pressing ring group which is elastically pressed and butted with the circular tube passage opening is arranged at the opposite joint of the bottom end of the filter chamber cover.

Preferably, the cloth bag assembly further comprises a bag pressing ring for pressing and fixing the mouth end of the dust removing cloth bag on the keel frame; the filter chamber cover is rotatably arranged on the keel frame through a bearing; an inner gear ring is horizontally fixed in the dust removal bin body, a plurality of cloth bags are assembled in the inner gear ring, and an outer gear ring meshed with the inner gear ring is fixed on the outer wall of the filter chamber cover; an array scraper which is in scraping contact with the inner wall of the filter chamber cover is fixed on the bag pressing ring.

Preferably, the dust removing bin body comprises a bottom end baffle plate horizontally fixed at the bottom end, and a plurality of cylinder channels are jointly fixed on the bottom end surface of the bottom end baffle plate; the slewing mechanism is assembled on the bottom end partition plate.

Preferably, the rotary mechanism comprises a rotary frame vertically and rotatably arranged in the dust removal bin body, and a lower shifting turntable with the bottom end face in rotary contact with the upper end face of the bottom end partition plate is horizontally fixed on the rotary frame; the lower shifting turntable is provided with a plurality of air inlet round holes which are communicated with a plurality of cloth bag assembly butt joints in a one-to-one correspondence manner, the elastic pressing contact ring group is rotatably arranged in the air inlet round holes through a bearing, and the elastic pressing contact ring group is in axial sliding fit with the bearing; the connection position of the circular tube channel and the bottom end partition plate is arranged in a concave groove; when the cloth bag assembly is in a butt joint state with the circular tube channel, the elastic press contact ring group is pressed in the circular tube channel groove.

Preferably, the revolving frame further comprises an upper shifting disc which is arranged above the lower shifting disc and horizontally and fixedly arranged, the upper shifting disc is rotationally connected with the inner wall of the dust removal bin body through a bearing, a plurality of cloth bag assemblies are fixed on the upper shifting disc through the keel frame, and exhaust round holes are correspondingly communicated with the top air purifying ports of each cloth bag assembly on the upper shifting disc.

Preferably, a partition cylinder is fixedly arranged above the upper dial plate in the dust removal bin body, and the upper end surface of the upper dial plate is in rotary contact with the bottom end of the partition cylinder; a partition plate with a U-shaped structure is fixed on the inner wall of the partition cylinder; the channel space which is enclosed between the partition plate and the inner wall of the partition cylinder and is positioned in the U-shaped groove forms the pulse channel, and the channel space which is positioned outside the U-shaped groove forms the clean air channel.

The technical scheme has the following advantages or beneficial effects: compared with the existing bag-type dust removing device which adopts a wind-stopping dust removing mode to remove dust, the device provided by the invention does not need wind-stopping dust removing operation, the dust removing empty spaces and dust removing working spaces are arranged in a circumferentially distributed mode through the plurality of bag-type assemblies and are independently and separately arranged, each bag-type assembly is transferred from the dust removing working space to the dust removing empty spaces one by one in a mode of intermittent rotation and replacement switching under the condition that wind stopping is not needed, and independent dust removing treatment is carried out on the dust removing bag in the dust removing empty spaces.

Drawings

The invention and its features, aspects and advantages will become more apparent from the detailed description of non-limiting embodiments with reference to the following drawings. Like numbers refer to like parts throughout the several views, and are not intended to scale, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a perspective view of a pulse cloth bag dust collector provided by the invention.

Fig. 2 is a front view of a pulse bag-type dust collector according to the present invention.

Fig. 3 is a cross-sectional view of A-A in fig. 2.

Fig. 4 is a partially enlarged schematic view at B in fig. 3.

Fig. 5 is a perspective view of the pulse bag dust collector provided by the invention under the condition that the main bin body and the top cover are detached.

Fig. 6 is a schematic view of the structure of fig. 5 from another perspective.

Fig. 7 is a schematic perspective view of the final assembly of the cloth bag.

Fig. 8 is a schematic perspective sectional structure of the cloth bag assembly.

Fig. 9 is a schematic view of the cross-sectional structure of fig. 8 from another perspective.

Fig. 10 is a partially enlarged schematic view at C in fig. 8.

Fig. 11 is a partially enlarged schematic view at D in fig. 9.

In the figure: 1. a dust removal bin body; 11. a main bin body; 12. a bottom end baffle; 121. a circular tube channel; 13. a partitioned cylinder; 131. a partition plate; 132. a purge gas passage; 133. a pulse channel; 14. a top cover; 141. an exhaust port; 142. a pulse port; 143. a pulse device; 15. an inner gear ring; 2. a slewing mechanism; 21. a rotary motor; 22. a revolving frame; 221. a rotating shaft; 222. a lower dial; 2221. an air inlet round hole; 223. a dial-up rotary table; 2231. an exhaust round hole; 3. assembling a cloth bag; 31. a keel frame; 311. a keel ring; 312. an inner support cage; 32. a dust removing cloth bag; 33. a bag pressing ring; 34. a filter chamber cover; 341. an outer ring gear; 35. an elastic pressing contact ring set; 351. a guide ring; 3511. a stepped groove; 352. a movable ring; 3521. a sliding ring; 3522. an annular plate; 3523. pressing the contact ring; 353. a pressure spring; 36. an array scraper; 361. an annular tool holder; 362. an adherence scraper; 363. and (5) connecting the rings in series.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order that those skilled in the art will better understand the present invention, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2 and 3, the pulse cloth bag dust collector comprises a cylindrical and vertically arranged dust collection bin body 1, a rotary mechanism 2 which is driven by intermittent rotation around the central axis is assembled in the dust collection bin body 1, and four cloth bag assemblies 3 which are uniformly distributed around the circumference of the rotary central axis are assembled on the rotary mechanism 2.

As shown in fig. 1, 3, 4, 5 and 6, the dust removing bin body 1 comprises a cylindrical main bin body 11, a bottom end partition plate 12 is horizontally welded in the main bin body 11 near the bottom end of the main bin body, four circular tube channels 121 are welded on the bottom end surface of the bottom end partition plate 12, the four circular tube channels 121 are uniformly distributed around the circumference of the central axis of the main bin body 11, and the distance between the center of the circular tube channels 121 and the central axis of the main bin body 11 is equal to the distance between the center of the cloth bag assembly 3 and the central axis of the main bin body 11. A partition cylinder 13 is horizontally welded in the main bin body 11 at a position close to the top end of the main bin body, and the outer wall of the partition cylinder 13 is in sealing contact with the inner wall of the main bin body 11; the partition plate 131 with a U-shaped structure is welded on the inner wall of the partition cylinder 13; the channel space in the U-shaped groove enclosed between the partition plate 131 and the inner wall of the partition cylinder 13 constitutes a pulse channel 133, and the channel space outside the U-shaped groove constitutes a clean air channel 132, wherein one of the circular tube channels 121 is disposed opposite to the pulse channel 133 in the vertical direction. The top end of the main bin body 11 is fixedly provided with a top cover 14 through bolts, and in order to keep independent tightness between the pulse channel 133 and the clean air channel 132, the lower end surface of the top cover 14 is in compression contact with the top end of the partition cylinder 13; the top cover 14 is provided with an exhaust port 141 communicated with the air purifying channel 132 and a pulse port 142 communicated with the pulse channel 133, a pulse device 143 is arranged on the pulse port 142, the pulse device 143 is of an existing structure used in a pulse bag dust collector, the pulse device 143 mainly comprises an electromagnetic pulse valve and an injection pipe communicated with the electromagnetic pulse valve and leading to the pulse port 142, the electromagnetic pulse valve is assembled on an external high-pressure air bag, and a large amount of pre-charged high-pressure air in the high-pressure air bag is instantaneously released through the electromagnetic pulse valve, so that pulse dust cleaning is realized.

As shown in fig. 3, 5 and 6, the swing mechanism 2 is assembled to the bottom end partition 12. The rotary mechanism 2 comprises a rotary motor 21 vertically fixed on the bottom end surface of the bottom end baffle plate 12 through a motor fixing frame and a rotary frame 22 vertically fixed on an output shaft of the rotary motor 21; it should be noted that, the rotary motor 21 is a self-locking gear motor with a self-locking structure and a speed reducing mechanism in the prior art, and adopts an intermittent starting mode in the actual working process, and intermittently drives the rotary frame 22 to rotate 90 ° each time. The revolving frame 22 comprises a revolving shaft 221 vertically penetrating through the bottom end partition plate 12 and fixedly connected to an output shaft of the revolving motor 21, a lower dial plate 222 and an upper dial plate 223 are sequentially arranged on the revolving shaft 221 from bottom to top in a distributed and welded mode, the lower dial plate 222 and the upper dial plate 223 are rotatably arranged on the inner wall of the main bin body 11 through bearings, the lower dial plate 222 is positioned above the bottom end partition plate 12, four air inlet round holes 2221 in one-to-one correspondence with the four round pipe channels 121 are formed in the lower dial plate 222, and the lower end face of the lower dial plate 222 is in fit contact with the upper end face of the bottom end partition plate 12; four air discharge round holes 2231 are formed in the upper dial 223, the four air discharge round holes 2231 and the four air inlet round holes 2221 are vertically and oppositely arranged in a one-to-one correspondence mode, and in order to ensure independent tightness of the air purifying channel 132 and the pulse channel 133, the upper end face of the upper dial 223 is in contact with the bottom end of the partition cylinder 13.

As shown in fig. 3, 4, 7, 8, 9, 10 and 11, four bag assemblies 3 are all assembled on the turret 22, and the bag assemblies 3 are assembled between the air discharge circular holes 2231 and the air intake circular holes 2221 in vertically opposite positions. The cloth bag assembly 3 is provided with an independent filtering chamber cavity, and the bottom end of the filtering chamber cavity is provided with an opposite port which can be independently communicated with the circular tube channel 121. The cloth bag assembly 3 comprises a keel frame 31, a dust removing cloth bag 32, a bag pressing ring 33 and a filter chamber cover 34, wherein the keel frame 31 is of an existing cylindrical cage-shaped keel frame 31 structure, the keel frame 31 comprises a keel ring 311 of a circular ring structure and an inner supporting cage 312 welded on the keel ring 311, the keel ring 311 is fixed on the bottom end face of an upper shifting rotary plate 223 through bolts, the dust removing cloth bag 32 is sleeved on the inner supporting cage 312, the bag mouth end of the dust removing cloth bag 32 is tightly pressed between the keel ring 311 and the bag pressing ring 33, the bag pressing ring 33 is fixed on the keel ring 311 through bolts, the top end edge of the filter chamber cover 34 is provided with a bearing, the bearing is fixed on the keel ring 311 through bolts, the dust removing cloth bag 32 is arranged in the filter chamber cover 34, an independent filter chamber cavity is formed by an annular cavity surrounded by the dust removing cloth bag 32 and the filter chamber cover 34, and the butt joint is positioned at the bottom end position of the filter chamber cover 34. The bottom end of the filter chamber cover 34 is provided with an elastic pressing ring group 35 which is elastically pressed and butted with the channel opening of the circular tube channel 121 at the opposite interface. The elastic pressing ring set 35 comprises a guide ring 351 welded at the bottom end of the filter chamber cover 34 and a movable ring 352 matched and assembled at the bottom end of the guide ring 351, a stepped groove 3511 is formed in the guide ring 351, four spline grooves are uniformly formed in the circumference of the stepped groove 3511, the movable ring 352 comprises a sliding ring 3521, an annular plate 3522 and pressing rings 3523 which are integrally formed from top to bottom, four splines in one-to-one sliding fit with the four spline grooves are uniformly formed on the outer wall of the sliding ring 3521, the sliding ring 3521 is slidably mounted in the stepped groove 3511 in a sliding fit mode of the splines and the spline grooves, in order to avoid unsmooth ash falling during ash removal, the inner walls of the sliding ring 3521, the guide ring 351 and a connecting port at the bottom end of the filter chamber cover 34 are all flush, the annular plate 3522 is arranged on the outer wall of the sliding ring 3521, eight vertically extending blind holes are uniformly formed at one end of the guide ring 351 facing the annular plate 3522, a pressure spring 353 is embedded in each blind hole, one end of the pressure spring is welded in the blind holes, and the other end of the pressure spring is welded on the annular plate 3522; the connection position of the circular tube channel 121 and the bottom end baffle plate 12 is arranged in a concave groove; the upper end face of the lower dial plate 222 is welded with a bearing at each air inlet round hole 2221, the press contact ring 3523 is matched with the inner ring of the bearing at the air inlet round holes 2221 in a spline and spline groove matching mode, and the press contact ring 3523 is matched with the bearing to form rotary connection.

When the rotation mechanism 2 drives the four cloth bag assemblies 3 to intermittently rotate, and the butt joint of one cloth bag assembly 3 is independently communicated with one of the circular tube channels 121 below the pulse channel 133, the top air purifying ports of the cloth bag assembly 3 below the pulse channel 133 are independently communicated with the pulse channel 133, the butt joint of the rest of the cloth bag assemblies 3 are in one-to-one corresponding independent butt joint with the rest of the circular tube channels 121, and the top air purifying ports of the rest of the cloth bag assemblies 3 are jointly communicated with the air purifying channel 132.

In this embodiment, one of the circular tube channels 121 located vertically below the pulse channel 133 is used as an ash cleaning channel alone, and the nozzle at the lower end of the circular tube channel 121 can be matched with an existing auger conveyor for automatically conveying dust generated after ash cleaning; the other three circular tube channels 121 are located at the lower area of the clean air channel 132, and can be used as air inlet channels for dust-containing gas independently, and can be used for independently introducing dust-containing gas, it is to be noted that the bottom ends of the three circular tube channels 121 can be mounted on an ash bucket in a common communication manner, and a main pipeline can be assembled on the ash bucket for introducing dust-containing gas into the ash bucket, so that the dust-containing gas can be dispersed into the three circular tube channels 121, and in addition, in the actual dust removal process, larger and heavier dust particles in the dust-containing gas entering the ash bucket and dispersed into the three circular tube channels 121 can automatically settle in the ash bucket under the action of gravity to complete common collection.

In the actual dust removal operation process, one cloth bag assembly 3 is in butt joint with a circular tube channel 121 serving as a dust removal channel, the cloth bag assembly 3 is in an idle operation state, the other three cloth bag assemblies 3 are just in butt joint with the other three circular tube channels 121 serving as air inlet channels in a one-to-one correspondence manner, and the three cloth bag assemblies 3 are in an actual operation state; in addition, in the abutting state, for each cloth bag assembly 3, the pressing ring 3523 extends into the concave groove under the elastic force of the pressure spring 353, and the chamfer surface of the pressing ring 3523 is pressed and attached to the concave groove surface. In the dust removing operation process, dust-containing gas is independently introduced into three circular tube channels 121 serving as air inlet channels, the dust with larger particles and larger specific gravity is driven by air flow to enter the filter chamber cavity of the cloth bag assembly 3, the dust with larger particle size and larger specific gravity is settled in the ash bucket under the action of gravity, the dust with finer particle size is blocked by the dust removing cloth bag 32, the clean gas after filtration enters the dust removing cloth bag 32 and is discharged upwards from the bag mouth, and the clean gas in the three cloth bag assemblies 3 is collected into the clean gas channel 132 and is finally discharged outwards from the air outlet 141 of the top cover 14.

When the dust removing cloth bags 32 need to be cleaned, the rotary motor 21 is started and drives the four cloth bag assemblies 3 to intermittently rotate by 90 degrees along with the rotary frame 22, the cloth bag assemblies 3 which are in the idle operation originally are switched and rotated to the lower part of the clean air channel 132 and are converted into dust removing operation, one of the cloth bag assemblies 3 which are in the dust removing operation state is replaced by rotation to the position of the idle operation, when the intermittent rotation and the switching are completed, the pulse device 143 is automatically started, pulse dust removing treatment is carried out on the dust removing cloth bags 32 of the cloth bag assemblies 3 at the lower position, and cleaned dust is discharged from the circular tube channel 121 at the lower part in a homeopathic manner. In the process of rotating switching, the pressing contact ring 3523 is separated from the concave groove, and because the lower dial plate 222 is always kept in a two-sided fit state with the bottom end partition plate 12, when the pressing contact ring 3523 and the circular tube channel 121 are partially dislocated, dust-containing gas can be partially introduced into the chamber of the filter chamber, after the complete dislocation, the lower dial plate 222 completely covers the circular tube channel 121, and the four cloth bag assemblies 3 are in an idle operation state, but the whole switching process time is very short, and the actual influence on the dust removal efficiency is negligible. Compared with the existing cloth bag dust removing device which adopts a wind stopping dust removing mode to remove dust, the device provided by the invention does not need wind stopping dust removing operation, the cloth bag assemblies 3 are circumferentially distributed and are independently and separately provided with dust removing empty spaces and dust removing working spaces, each cloth bag assembly 3 is transferred from the dust removing working space to the dust removing empty spaces one by one in a mode of intermittent rotation and replacement switching under the condition of not needing wind stopping, and the dust removing empty spaces independently remove dust on the dust removing cloth bags 32, so that continuous dust removing and purifying operation is not influenced, pulse dust removing operation is ensured to be carried out on the dust removing cloth bags 32 positioned in the dust removing empty spaces while the dust removing operation is carried out, intermittent dust removing operation is carried out one by one while the dust removing operation is not interrupted, the dust removing operation time is not interrupted any more in the dust removing process, and the dust removing continuity and the dust removing efficiency are effectively ensured.

In addition, as shown in fig. 3, 4, 5, 7, 8, 9, 10 and 11, an inner gear ring 15 is welded horizontally in the dust removal bin body 1, four cloth bag assemblies 3 are positioned in the inner gear ring 15, and an outer gear ring 341 meshed with the inner gear ring 15 is welded on the outer wall of the filter chamber cover 34; the bag pressing ring 33 is fixedly provided with an array scraper 36 in scraping contact with the inner wall of the filter chamber cover 34, the array scraper 36 comprises an annular cutter frame 361 fixed on the bag pressing ring 33 through bolts, eight adherence scrapers 362 are welded on the bottom end face of the annular cutter frame 361, the eight adherence scrapers 362 are uniformly distributed around the circumference of the central shaft of the annular cutter frame 361, the cutting edges are in scraping contact with the inner wall of the filter chamber cover 34, and in order to improve the stability of the eight adherence scrapers 362, a serial ring 363 is welded in series between the bottom ends of the eight adherence scrapers 362. Because the filter chamber cover 34 is rotatably mounted on the keel ring 311 through the bearing, and the bottom end of the filter chamber cover 34 is rotatably mounted on the lower dial plate 222 through the elastic pressing ring set 35, when the cloth bag assembly 3 rotates along with the rotary frame 22 through intermittent driving of the rotary mechanism 2, the inner gear ring 15 drives the outer gear ring 341 to rotate the filter chamber cover 34 passively, and then the filter chamber cover 34 rotates relative to the annular knife rest 361, and the wall-attaching scraper 362 scrapes and cleans the inner wall of the filter chamber cover 34, so that the annular knife rest 361 cleans the whole inner wall of the filter chamber cover 34 in the intermittent rotation process of the cloth bag assembly 3, dust is prevented from accumulating on the inner wall, the normalization of the space size of the filter chamber cavity is ensured, and the air inflow can be maintained to a certain extent, so that the stability of dust removal efficiency is ensured.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The preferred embodiments of the present invention have been described above. It is to be understood that the invention is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art will make many possible variations and modifications, or adaptations to equivalent embodiments without departing from the technical solution of the present invention, which do not affect the essential content of the present invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a pulse sack dust collector which characterized in that: the dust collection device comprises a cylindrical dust collection bin body (1) which is vertically arranged, wherein a rotary mechanism (2) which is driven by intermittent rotation around the central axis is assembled in the dust collection bin body (1), and a plurality of cloth bag assemblies (3) which are uniformly distributed around the circumference of the rotary central axis are assembled on the rotary mechanism (2);

a plurality of round tube channels (121) which are the same as the cloth bag assembly (3) in number are uniformly distributed on the circumference of the bottom end of the dust removal bin body (1); the cross section of the dust removing bin body (1) is divided into two channel areas of a clean air channel (132) and a pulse channel (133) in the area above the cloth bag assembly (3), one circular tube channel (121) and the pulse channel (133) are arranged oppositely in the vertical direction, a pulse device (143) for pulse dust removing is arranged at the top of the dust removing bin body (1), and the pulse device (143) is vertically and downwardly communicated to the pulse channel (133); the cloth bag assembly (3) is provided with an independent filtering chamber cavity, and the bottom end of the filtering chamber cavity is provided with an opposite port which can be independently communicated with the circular tube channel (121);

when the rotary mechanism (2) drives a plurality of cloth bag assembly (3) to intermittently rotate, and the butt joint of one cloth bag assembly (3) is independently communicated with one circular tube channel (121) below the pulse channel (133), the top air purifying port of the cloth bag assembly (3) below the pulse channel (133) is independently communicated with the pulse channel (133), the butt joint of the rest of cloth bag assembly (3) is independently butt-jointed and communicated with the rest of circular tube channels (121) in a one-to-one correspondence, and the top air purifying port of the rest of cloth bag assembly (3) is commonly communicated with the air purifying channel (132);

the cloth bag assembly (3) comprises a dragon skeleton (31), a dust removing cloth bag (32) sleeved on the dragon skeleton (31) and a filter chamber cover (34) assembled on the dragon skeleton (31), wherein the dust removing cloth bag (32) is arranged in the filter chamber cover (34), and a filter chamber cavity is formed by an annular inner cavity surrounded by the dust removing cloth bag (32) and the filter chamber cover (34);

an elastic pressing contact ring group (35) which is elastically pressed and contacted with the channel opening of the circular tube channel (121) is arranged at the opposite interface at the bottom end of the filter chamber cover (34);

the dust removal bin body (1) comprises a bottom end partition plate (12) horizontally fixed at the bottom end, and a plurality of circular tube channels (121) are jointly fixed on the bottom end face of the bottom end partition plate (12); the slewing mechanism (2) is assembled on the bottom end partition plate (12);

the rotary mechanism (2) comprises a rotary frame (22) vertically and rotatably arranged in the dust removal bin body (1), and a lower dial plate (222) with the bottom end face in rotary contact with the upper end face of the bottom end partition plate (12) is horizontally fixed on the rotary frame (22); the lower shifting turntable (222) is provided with a plurality of air inlet round holes (2221) which are communicated with the interfaces of the cloth bag assembly (3) in a one-to-one correspondence manner, the elastic pressing contact ring group (35) is rotatably arranged in the air inlet round holes (2221) through a bearing, and the elastic pressing contact ring group (35) is in axial sliding fit with the bearing; the connection position of the circular tube channel (121) and the bottom end baffle plate (12) is arranged in a concave groove; when the cloth bag assembly (3) and the circular tube channel (121) are in a butt joint state, the elastic pressing ring group (35) is pressed in the groove of the circular tube channel (121);

the elastic pressing ring set (35) comprises a guide ring (351) welded at the bottom end of the filter chamber cover (34) and a movable ring (352) matched and assembled at the bottom end of the guide ring (351), wherein a stepped groove (3511) is formed in the guide ring (351), four spline grooves are uniformly formed in the circumference of the stepped groove (3511), the movable ring (352) comprises a sliding ring (3521), an annular plate (3522) and a pressing ring (3523) which are integrally formed from top to bottom, four splines which are in one-to-one sliding fit with the four spline grooves are uniformly formed on the outer wall of the sliding ring (3521), the sliding ring (3521) is slidably mounted in the stepped groove (3511) in a mode of sliding fit with the spline grooves through the splines, in order to avoid unsmooth ash falling during ash removal, the inner walls of the sliding ring (3521), the guide ring (351) and a connecting port at the bottom end of the filter chamber cover (34) are all arranged in a flush manner, the annular plate (3522) is arranged on the outer wall of the sliding ring (3521), the guide ring (3522) faces one end of the annular plate (3522) and eight pressure springs are uniformly arranged in a vertical blind hole, and each pressure spring is welded in the blind hole (353; the connection position of the circular tube channel (121) and the bottom end baffle plate (12) is arranged in a concave groove; the bearing is welded on the upper end face of the lower dial plate (222) at the position of each air inlet round hole (2221), the pressing contact ring (3523) is matched with the inner ring of the bearing at the position of the air inlet round hole (2221) in a spline and spline groove mode, the pressing contact ring (3523) is matched with the bearing to form rotary connection, the bottom of the pressing contact ring (3523) is provided with a plane in pressing contact with the upper end face of the bottom baffle plate (12), and a chamfer surface which can be in pressing contact with the concave groove is arranged at the edge of the outer ring of the bottom of the pressing contact ring (3523).

2. The pulse bag-type dust collector according to claim 1, wherein: the cloth bag assembly (3) further comprises a bag pressing ring (33) for pressing and fixing the bag mouth end of the dust removing cloth bag (32) on the keel frame (31); the filter housing (34) is rotatably mounted on the keel frame (31) by means of bearings; an inner gear ring (15) is horizontally fixed in the dust removal bin body (1), a plurality of cloth bag assemblies (3) are positioned in the inner gear ring (15), and an outer gear ring (341) meshed with the inner gear ring (15) is fixed on the outer wall of the filter chamber cover (34); an array scraper (36) in scraping contact with the inner wall of the filter chamber cover (34) is fixed on the bag pressing ring (33).

3. The pulse bag-type dust collector according to claim 1, wherein: the rotary frame (22) further comprises an upper shifting disc (223) which is arranged above the lower shifting disc (222) and horizontally and fixedly arranged, the upper shifting disc (223) is rotationally connected with the inner wall of the dust removal bin body (1) through a bearing, a plurality of cloth bag assembly (3) are fixed on the upper shifting disc (223) through the keel frame (31), and an exhaust round hole (2231) is correspondingly communicated with a top air purifying port of each cloth bag assembly (3) on the upper shifting disc (223).

4. A pulse bag house dust collector according to claim 3, characterized in that: a partition cylinder (13) is fixedly arranged above the upper dial plate (223) in the dust removal bin body (1), and the upper end surface of the upper dial plate (223) is in rotary contact with the bottom end of the partition cylinder (13); a partition plate (131) with a U-shaped structure is fixed on the inner wall of the partition cylinder (13); the channel space which is enclosed between the partition plate (131) and the inner wall of the partition cylinder (13) and is positioned in the U-shaped groove forms the pulse channel (133), and the channel space which is positioned outside the U-shaped groove forms the clean air channel (132).