CN210121390U

CN210121390U - Bag-type dust collector

Info

Publication number: CN210121390U
Application number: CN201822137473.2U
Authority: CN
Inventors: 王凤军; 王娜
Original assignee: Fushun Yilong Engineering Materials Co Ltd
Current assignee: Fushun Yilong Engineering Materials Co Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2020-03-03
Anticipated expiration: 2028-12-19

Abstract

The utility model relates to the technical field of auxiliary dedusting devices, in particular to a bag-type dust remover; the dust removing device comprises a box body, an ash bucket and a dust removing fan, wherein a working cavity is arranged in the box body, fixing plates are arranged on the left front side, the left rear side, the right front side and the right rear side of the outer wall of the box body, and supporting legs are longitudinally arranged at the bottom end of each group of fixing plates; comprises a blower and a uniform distribution box; still including the installation pipe, the installation cover, the solid fixed ring of first solid fixed ring and second, the top of installation pipe is connected with one heart with the bottom middle part of box, and the fixed suit of first solid fixed ring is at the outer wall downside of installation pipe, the bottom inner wall circumference of installation cover is provided with the sealing washer, and the bottom of installation cover and the top intercommunication of ash bucket, the solid fixed ring's of second bottom is connected with one heart with the top of installation cover, the solid fixed ring of second passes through multiunit bolt fixed connection on the bottom outer wall of box, and the installation pipe is located inside the installation cover, the bottom of first solid fixed ring is pasted tightly with the top of sealing washer.

Description

Bag-type dust collector

Technical Field

The utility model relates to a technical field of dust removal auxiliary device especially relates to a sack cleaner.

Background

The bag-type dust collector is an auxiliary device for purifying the gas containing the sediment so as to reduce the pollution to the atmospheric environment, and is widely used in the field of dust collection. When the existing bag-type dust collector is used, firstly, the whole bag-type dust collector is placed at a position required by a user through supporting legs, then, an air inlet pipe is communicated with a conveying pipe containing the sinking gas, a dust removing fan is communicated with a mains supply, the dust removing fan is turned on, the sinking gas is sucked into a lower cavity under the action of the dust removing fan, dust contained in the sinking gas is intercepted by four groups of dust removing cloth bags, sucked into the upper cavity and discharged to the outside through a right output end of the dust removing fan; in addition, after the dust removal cloth bag is used for a long time, more dust can be attached to the surface of the dust removal cloth bag and is not easy to remove, so that the filtering effect of the dust removal cloth bag on the heavy gas is influenced, and the use reliability is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a bag-type dust collector.

The utility model discloses a bag-type dust collector, which comprises a box body, an ash bucket and a dust removal fan, the inside of the box body is provided with a working cavity, and the upper side in the inner part of the working cavity is transversely provided with a partition plate, and the partition plate divides the working cavity into an upper cavity and a lower cavity, the left front side, the left rear side, the right front side and the right rear side of the top end of the partition plate are respectively provided with an installation through hole which runs through from top to bottom, the bottom ends of the four groups of installation through holes are respectively provided with a supporting framework, and the supporting framework is respectively sleeved with a dust removal bag, the left end lower side of the box body is communicated with an air inlet pipe, the bottom output end of the dust removal fan is communicated with the middle part of the top end of the box body, the top end of the ash bucket is communicated with the bottom end of the box body; the left end of the blower is connected with the upper side of the outer wall of the right end of the box body, the cloth-equalizing box is positioned in the lower chamber, the left front side, the left rear side, the right front side and the right rear side of the top end of the cloth-equalizing box are respectively provided with a fixing through hole which penetrates through the upper part and the lower part, each group of fixing through holes is hermetically provided with a fixing pipe, the cloth-equalizing box is respectively sleeved on the outer upper sides of four groups of dust-removing cloth bags through four groups of fixing pipes, the top end of the cloth-equalizing box is connected with the bottom end of the partition plate, four groups of nozzles are arranged on the circumference of the bottom end of each group of fixing through holes at equal intervals, each group of nozzles is communicated with the inside of the cloth-equalizing box, the left output end of the blower is provided with a communicating pipe, and the left end of; still including installation pipe, installation cover, the solid fixed ring of first solid fixed ring and second, the top of installation pipe with the bottom middle part of box is connected with one heart, and the fixed suit of first solid fixed ring is at the outer wall downside of installation pipe, and the bottom inner wall circumference of installation cover is provided with the sealing washer to the bottom of installation cover with the top intercommunication of ash bucket, the solid fixed ring's of second bottom is connected with one heart with the top of installation cover, and the solid fixed ring of second passes through multiunit bolt fixed connection on the bottom outer wall of box, and inside the installation pipe was located the installation cover, the bottom of first solid fixed ring was pasted tightly with the top of sealing washer.

Preferably, the utility model is improved by further comprising a pressure relief box, a pressure relief pipe, a limiting ring, a limiting plate, a connecting spring and a cover plate, wherein the left end of the pressure relief pipe is communicated with the right end of the pressure relief box, the right end of the pressure relief pipe penetrates through the outer wall of the left end of the box body and extends into the lower cavity to be communicated with the middle part of the left end of the cloth homogenizing box, the middle part of the top end of the pressure relief box is provided with an air release port, the bottom end of the cover plate is tightly attached to the top end of the pressure relief box, the air release port is positioned below the cover plate, the connecting spring is positioned in the air relief box, the top end of the connecting spring is connected with the middle part of the bottom end of the cover plate, the circumferential outer wall of the limiting ring is connected with the lower side of the circumferential inner wall of the pressure relief box, the limiting plate is positioned below the limiting ring, and the middle part of the top end of the limiting plate is connected with the bottom end of the connecting spring, and the top end of the limiting plate is tightly attached to the bottom end of the limiting ring.

As preferred, the utility model discloses the improvement has, still includes adjusting bolt and adjustable ring, the bottom middle part of pressure release case is provided with the screw thread through-hole, and the top of adjustable ring with the bottom middle part of limiting plate is connected through the multiunit connecting rod, adjusting bolt's top is passed inside the screw thread through-hole and is stretched into to the pressure release incasement portion from the bottom spiral shell dress of pressure release case, and adjusting bolt's top is passed the adjustable ring and is stretched out to the top of adjustable ring external, and adjusting bolt's top is provided with the baffle to the bottom of baffle with the top contact of adjustable ring.

As preferred, the utility model discloses the improvement has, still includes four groups of support travellers, the inside left front side of limiting plate, left rear side, right front side and right rear side all vertically are provided with sliding through hole, and four groups of support travellers bottom respectively with the left front side, left rear side, right front side and the right rear side of pressure release bottom of the case end inner wall are connected, and four groups of support travellers' top all from the bottom of limiting plate slidable respectively pass four groups of sliding through hole inside and respectively with left front side, left rear side, right front side and the right rear side of spacing ring bottom are connected.

As preferred, the utility model discloses the improvement has, the cover is equipped with sealed guide pin bushing on the circumference outer wall of limiting plate to the circumference outer wall of sealed guide pin bushing with the circumference inner wall sliding seal contact of pressure relief case.

Preferably, the utility model discloses the improvement has, every group the bottom of nozzle all sets up to the direction slope of every group corresponding dust removal sack.

As preferably, the utility model discloses the improvement has, still includes the kuppe, the kuppe is located go up inside the cavity to the bottom and the four group's installation through-holes of kuppe communicate with each other, the top of kuppe with dust exhausting fan's bottom input communicates with each other.

Preferably, the utility model discloses the improvement has, still includes four group's footing boards, the top of four group's footing boards is connected with the bottom of four group's landing legs respectively.

Advantageous effects

The utility model can conveniently remove the dust attached to the surface of the dust removing cloth bag, reduce the influence of the dust removing cloth bag on the filtering effect of the gas containing the sediment, and improve the use reliability; and conveniently dismantle between ash bucket and the box, conveniently clear up ash bucket inside, reduced the use limitation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the local enlarged structure at a position of the present invention;

fig. 3 is a schematic view of a partially enlarged structure at the position B of the present invention;

fig. 4 is a schematic view of the local enlarged structure at the position C of the present invention;

in the drawings, the reference numbers: 1. a box body; 2. an ash hopper; 3. a dust removal fan; 4. a partition plate; 5. a dust removal cloth bag; 6. an air inlet pipe; 7. a fixing plate; 8. a support leg; 9. a blower; 10. a cloth homogenizing box; 11. a nozzle; 12. installing a pipe; 13. installing a sleeve; 14. a first retaining ring; 15. a second retaining ring; 16. a seal ring; 17. a pressure relief tank; 18. a pressure relief pipe; 19. a limiting ring; 20. a limiting plate; 21. a connecting spring; 22. a cover plate; 23. adjusting the bolt; 24. an adjusting ring; 25. a support strut; 26. sealing the guide sleeve; 27. a pod; 28. footing board.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 4, the bag-type dust collector of the utility model comprises a box body 1, an ash bucket 2 and a dust-removing fan 3, a working chamber is arranged inside the box body 1, and the upper side of the inner part of the working cavity is transversely provided with a clapboard 4, the working cavity is divided into an upper chamber and a lower chamber by the clapboard 4, the left front side, the left rear side, the right front side and the right rear side of the top end of the clapboard 4 are all provided with mounting through holes which penetrate up and down, and the bottom ends of the four groups of mounting through holes are all provided with a supporting framework, the supporting framework is sleeved with a dust removal cloth bag 5, the lower side of the left end of the box body 1 is communicated with an air inlet pipe 6, the bottom output end of the dust removal fan 3 is communicated with the middle of the top end of the box body 1, the top end of the ash bucket 2 is communicated with the bottom end of the box body 1, fixing plates 7 are arranged on the left front side, the left rear side, the right front side and the right rear side of the outer wall of the box body 1, and supporting legs 8 are longitudinally arranged at the bottom end of each group of fixing plates 7; the dust removing device comprises a blower 9 and an even distribution box 10, wherein the left end of the blower 9 is connected with the upper side of the outer wall of the right end of a box body 1, the even distribution box 10 is positioned in a lower chamber, the left front side, the left rear side, the right front side and the right rear side of the top end of the even distribution box 10 are respectively provided with a fixing through hole which penetrates through the upper and lower parts, each group of fixing through holes is hermetically provided with a fixing pipe, the even distribution box 10 is respectively sleeved on the upper outer sides of four groups of dust removing cloth bags 5 through the four groups of fixing pipes, the top end of the even distribution box 10 is connected with the bottom end of a partition plate 4, four groups of nozzles 11 are arranged on the circumference outer part of the bottom end of each group of fixing through holes at equal intervals, each group of nozzles 11 are communicated with the inside of the even distribution box 10, the output end of; the ash bucket type dust collector further comprises a mounting pipe 12, a mounting sleeve 13, a first fixing ring 14 and a second fixing ring 15, wherein the top end of the mounting pipe 12 is concentrically connected with the middle part of the bottom end of the box body 1, the first fixing ring 14 is fixedly sleeved on the lower side of the outer wall of the mounting pipe 12, a sealing ring 16 is arranged on the circumference of the inner wall of the bottom end of the mounting sleeve 13, the bottom end of the mounting sleeve 13 is communicated with the top end of the ash bucket 2, the bottom end of the second fixing ring 15 is concentrically connected with the top end of the mounting sleeve 13, the second fixing ring 15 is fixedly connected to the outer wall of the bottom end of the box body 1 through a plurality of groups of bolts, the mounting pipe 12 is positioned inside; the blower is matched with the communicating pipe to blow air to the inside of the uniform distribution box, and the air in the uniform distribution box can be blown out to the outside of the corresponding dust collection cloth bag through four groups of nozzles on the upper side of the outside of each group of dust collection cloth bag, so that dust on the upper side of the outside of the dust collection cloth bag is blown off downwards from the upper side of the dust collection cloth bag, the dust attached to the surface of the dust collection cloth bag is conveniently removed, the influence of the dust collection cloth bag on the filtering effect of the settled gas is reduced, and the use reliability; and can be connected through dismantling between multiunit bolt and the box bottom outer wall, dismantle between messenger's second solid fixed ring and the box bottom outer wall to can make and dismantle between installation cover and the installation pipe, through the cooperation between sealing washer and the first solid fixed ring, improve the intercommunication leakproofness between ash bucket and the box, thereby can make and conveniently dismantle between ash bucket and the box, conveniently dismantle the back with the ash bucket and clear up the ash bucket is inside, reduce the use limitation.

In a further specific embodiment, the pressure relief device further comprises a pressure relief box 17, a pressure relief pipe 18, a limiting ring 19, a limiting plate 20, a connecting spring 21 and a cover plate 22, wherein the left end of the pressure relief pipe 18 is communicated with the right end of the pressure relief box 17, the right end of the pressure relief pipe 18 penetrates through the outer wall of the left end of the box body 1 and extends into the lower chamber to be communicated with the middle part of the left end of the uniform distribution box 10, the middle part of the top end of the pressure relief box 17 is provided with an air release port, the bottom end of the cover plate 22 is tightly attached to the top end of the pressure relief box 17, the air release opening is positioned below the cover plate 22, the connecting spring 21 is positioned in the air release box, the top end of the connecting spring 21 is connected with the middle part of the bottom end of the cover plate 22, the circumferential outer wall of the limiting ring 19 is connected with the lower side of the circumferential inner wall of the pressure relief box 17, the limiting plate 20 is positioned below the limiting ring 19, the middle part of the top end of the limit plate 20 is connected with the bottom end of the connecting spring 21, and the top end of the limit plate 20 is tightly attached to the bottom end of the limit ring 19; can blow into the hair-dryer together with the pressure release case through the pressure release pipe and carry out the pressure release discharge to the gas of equipartition incasement portion, keep the air steady output of equipartition incasement portion, reduce the speed that is greater than nozzle exhaust gas because of hair-dryer output gas causes the condition of the inside pressure increase of equipartition incasement portion, produce the pulling force through coupling spring, the pulling apron covers tightly on disappointing mouthful, inside when gas gets into the pressure release incasement portion, gaseous promotion apron rebound and the top separation of pressure release case, thereby can make the unnecessary gas discharge of equipartition incasement portion, when the gaseous enough nozzle output of equipartition incasement portion, the inside pressure of pressure release incasement portion and external balance this moment, the apron continues to cover tightly on disappointing mouthful under the pulling force of spring, prevent that external dust from getting into, improve and.

In a further specific embodiment, the pressure relief box further comprises an adjusting bolt 23 and an adjusting ring 24, a threaded through hole is formed in the middle of the bottom end of the pressure relief box 17, the top end of the adjusting ring 24 is connected with the middle of the bottom end of the limiting plate 20 through a plurality of groups of connecting rods, the top end of the adjusting bolt 23 is screwed from the bottom end of the pressure relief box 17, penetrates through the threaded through hole and extends into the pressure relief box 17, the top end of the adjusting bolt 23 penetrates through the adjusting ring 24 and extends out of the top end of the adjusting ring 24, a baffle is arranged at the top end of the adjusting bolt 23, and the bottom end of the; if connecting spring's pulling force is less, the apron lid is relatively poor at the tight effect of lid of pressure release mouth, the gas of equipartition incasement portion all overflows and can't guarantee sweeping of nozzle dust on to the dust removal sack from the pressure release mouth, can pass through the spiral shell assembly between adjusting bolt and the screw thread through-hole, simultaneously through the cooperation between adjustable ring and the baffle, it can make the limiting plate reciprocate at the pressure release incasement portion to rotate adjusting bolt, thereby can adjust connecting spring's tensile length, thereby can be according to the in-service use condition, adjust connecting spring to the pulling force of apron through rotating adjusting bolt, guarantee gaseous inside the nozzle to the output of sweeping of dust removal sack, adaptability is improved.

In a further specific embodiment, the pressure relief box further comprises four groups of supporting sliding columns 25, sliding through holes are longitudinally formed in the left front side, the left rear side, the right front side and the right rear side of the interior of the limiting plate 20, the bottom ends of the four groups of supporting sliding columns 25 are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the inner wall of the bottom end of the pressure relief box 17, and the top ends of the four groups of supporting sliding columns 25 can respectively penetrate through the interior of the four groups of sliding through holes from the bottom end of the limiting plate 20 in a sliding manner and are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the bottom end; through the sliding fit between four groups of support travelers and four groups of slip through-holes respectively, make the limiting plate can reciprocate along the direction of four groups of support travelers in the adjustment process about going on to improve the stability of limiting plate in the adjustment process from top to bottom.

In a further specific embodiment, the circumferential outer wall of the limiting plate 20 is sleeved with a sealing guide sleeve 26, and the circumferential outer wall of the sealing guide sleeve 26 is in slidable sealing contact with the circumferential inner wall of the pressure relief box 17; the sliding sealing performance between the limiting plate and the circumferential inner wall of the pressure relief box can be improved through the sealing guide sleeve, air leakage between the limiting plate and the circumferential inner wall of the pressure relief box is prevented, and therefore the using effect of pressure relief of the pressure relief opening is guaranteed.

In a further specific embodiment, the bottom end of each group of nozzles 11 is obliquely arranged towards the direction of each group of corresponding dust removal cloth bags 5; the blowing effect of the nozzle on dust outside the dust removal cloth bag is improved.

In a further specific embodiment, the dust removing device further comprises a flow guide cover 27, wherein the flow guide cover 27 is positioned inside the upper chamber, the bottom end of the flow guide cover 27 is communicated with the four groups of mounting through holes, and the top end of the flow guide cover 27 is communicated with the bottom input end of the dust removing fan 3; when the purified gas is output through the dust removal fan, the impact of the purified gas on the inner wall of the top end of the upper chamber can be reduced through the flow guide sleeve, extra work loss is reduced, and the output stability of the dust removal fan on the gas is improved.

In a further specific embodiment, the foldable support further comprises four groups of base plates 28, and the top ends of the four groups of base plates 28 are respectively connected with the bottom ends of the four groups of support legs 8; the supporting and stabilizing effects of the four groups of supporting legs on the whole can be improved through the four groups of footing plates.

The working principle is as follows: when the dust removal device works, firstly, the whole body is placed at a position required by a user through the supporting legs, then the air inlet pipe is communicated with the conveying pipe containing the sinking gas, the dust removal fan is communicated with a mains supply, the dust removal fan is started, the sinking gas is sucked into the lower chamber under the action of the dust removal fan, dust contained in the sinking gas is intercepted by the four groups of dust removal cloth bags, sucked into the upper chamber and discharged to the outside through the right output end of the dust removal fan, air is blown into the uniform distribution box through the blower matched with the communicating pipe, air in the uniform distribution box can be blown out to the outside of the corresponding dust removal cloth bag through the four groups of nozzles on the upper side of the outside of each group of dust removal cloth bag, so that the dust on the upper side of the outside of the dust removal cloth bag is blown down from the upper side of the dust removal cloth bag respectively, the dust attached to the surface, the second fixing ring can be detached from the outer wall of the bottom end of the box body through the detachable connection between a plurality of groups of bolts and the outer wall of the bottom end of the box body, so that the mounting sleeve and the mounting pipe can be detached, the communication sealing performance between the ash bucket and the box body is improved through the matching between the sealing ring and the first fixing ring, so that the ash bucket and the box body can be conveniently detached, the interior of the ash bucket is conveniently cleaned after the ash bucket is detached, the pressure relief pipe and the pressure relief box are used for relieving and discharging gas blown into the interior of the uniform distribution box by a blower, the stable output of the air in the uniform distribution box is kept, the situation that the pressure in the uniform distribution box is increased due to the fact that the gas output speed of the blower is greater than the gas output speed of a nozzle is reduced, the pulling force is generated through the connecting spring, the cover plate is pulled to be tightly covered on the gas release port, when the gas enters the pressure, therefore, the redundant gas in the uniform distribution box can be discharged, when the gas in the uniform distribution box is enough to be output by the nozzle, the pressure in the pressure relief box is balanced with the outside, the cover plate is continuously covered on the air release port under the tension of the spring to prevent the external dust from entering, if the tension of the connecting spring is smaller, the covering effect of the cover plate cover on the pressure release port is poorer, the gas in the uniform distribution box overflows from the pressure release port and cannot ensure the blowing of the dust on the dust removal cloth bag by the nozzle, the stretching length of the connecting spring can be adjusted by adjusting the screw fit between the adjusting bolt and the threaded through hole and simultaneously rotating the adjusting bolt through the fit between the adjusting ring and the baffle plate to ensure the blowing output of the gas to the dust removal cloth bag in the nozzle, through the sliding fit between four groups of support travelers and four groups of slip through-holes respectively, make the limiting plate can reciprocate along the direction of four groups of support travelers in the adjustment process from top to bottom going on, thereby improve the stability in the adjustment process from top to bottom of limiting plate, improve the sliding seal nature between limiting plate and the pressure release case circumference inner wall through sealed guide pin bushing, prevent leaking gas between limiting plate and the pressure release case circumference inner wall, improve the effect of sweeping of nozzle to the outside dust of dust removal sack, when the gas after the purification exports through dust exhausting fan, can reduce the striking of the gas after the purification to the top inner wall of upper chamber through the kuppe, reduce extra work loss, improve dust exhausting fan to gaseous output stationarity, improve four groups of landing legs through four groups of footing boards and support stable effect to holistic.

Moreover, the terms "mounted," "disposed," "connected," and "nested" are to be construed broadly and may, for example, be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; they may be directly connected or indirectly connected through an intermediate or internal communication between two devices, elements or components, and the specific meanings of the above terms in the present invention should be understood by those skilled in the art according to the specific situation.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A bag-type dust collector comprises a box body (1), an ash bucket (2) and a dust removal fan (3), wherein a working cavity is arranged in the box body (1), a partition plate (4) is transversely arranged on the upper side in the working cavity, the working cavity is divided into an upper cavity and a lower cavity by the partition plate (4), a left front side, a left rear side, a right front side and a right rear side at the top end of the partition plate (4) are respectively provided with a vertically-penetrating mounting through hole, the bottom ends of four groups of mounting through holes are respectively provided with a supporting framework, a dust removal bag (5) is sleeved on each supporting framework, the lower side of the left end of the box body (1) is communicated with an air inlet pipe (6), the bottom output end of the dust removal fan (3) is communicated with the middle part of the top end of the box body (1), the top end of the ash bucket (2) is communicated with the bottom end of the box body (1), fixing plates (7) are respectively arranged on, and the bottom end of each group of fixed plates (7) is longitudinally provided with a supporting leg (8); characterized in that the dust collector comprises a blower (9) and a uniform distribution box (10), the left end of the blower (9) is connected with the upper side of the outer wall of the right end of the box body (1), the uniform distribution box (10) is positioned in the lower chamber, the left front side, the left rear side, the right front side and the right rear side of the top end of the uniform distribution box (10) are respectively provided with a fixing through hole which penetrates up and down, each group of fixing through holes is hermetically provided with a fixing pipe, the uniform distribution box (10) is respectively sleeved on the upper sides of the outer parts of four groups of dust removing cloth bags (5) through the four groups of fixing pipes, the top end of the uniform distribution box (10) is connected with the bottom end of the partition plate (4), the outer part of the circumference of the bottom end of each group of fixing through hole is provided with four groups of nozzles (11) at equal intervals, each group of nozzles (11) is communicated with the inner, the left end of the communicating pipe penetrates through the outer wall of the right end of the box body (1) and extends into the lower chamber to be communicated with the middle part of the right end of the uniform distribution box (10); still including installation pipe (12), installation cover (13), first solid fixed ring (14) and the solid fixed ring of second (15), the top of installation pipe (12) with the bottom middle part of box (1) is connected with one heart, and the fixed suit of first solid fixed ring (14) is at the outer wall downside of installation pipe (12), and the bottom inner wall circumference of installation cover (13) is provided with sealing washer (16), and the bottom of installation cover (13) with the top intercommunication of ash bucket (2), the bottom of the solid fixed ring of second (15) is connected with the top of installation cover (13) with one heart, and the solid fixed ring of second (15) is through multiunit bolt fixed connection on the bottom outer wall of box (1), and inside installation pipe (12) is located installation cover (13), the bottom of first solid fixed ring (14) is pasted tightly with the top of sealing washer (16).

2. The cloth bag dust collector of claim 1, further comprising a pressure relief box (17), a pressure relief pipe (18), a limiting ring (19), a limiting plate (20), a connecting spring (21) and a cover plate (22), wherein the left end of the pressure relief pipe (18) is communicated with the right end of the pressure relief box (17), the right end of the pressure relief pipe (18) passes through the outer wall of the left end of the box body (1) and extends into the lower chamber to be communicated with the middle of the left end of the cloth equalizing box (10), the middle of the top end of the pressure relief box (17) is provided with a gas leakage port, the bottom end of the cover plate (22) is tightly attached to the top end of the pressure relief box (17), the gas leakage port is located below the cover plate (22), the connecting spring (21) is located inside the gas leakage box, the top end of the connecting spring (21) is connected with the middle of the bottom end of the cover plate (22), the outer wall of the circumference of the limiting ring (19) is connected with the lower side of the inner wall of the circumference of, the limiting plate (20) is positioned below the limiting ring (19), the middle of the top end of the limiting plate (20) is connected with the bottom end of the connecting spring (21), and the top end of the limiting plate (20) is tightly attached to the bottom end of the limiting ring (19).

3. The bag-type dust collector according to claim 2, further comprising an adjusting bolt (23) and an adjusting ring (24), wherein a threaded through hole is formed in the middle of the bottom end of the pressure relief box (17), the top end of the adjusting ring (24) is connected with the middle of the bottom end of the limiting plate (20) through a plurality of groups of connecting rods, the top end of the adjusting bolt (23) is screwed from the bottom end of the pressure relief box (17) and penetrates through the interior of the threaded through hole and extends into the interior of the pressure relief box (17), the top end of the adjusting bolt (23) penetrates through the adjusting ring (24) and extends out of the top end of the adjusting ring (24), a baffle is arranged at the top end of the adjusting bolt (23), and the bottom end of the baffle is in contact with the top end of the adjusting.

4. The bag-type dust collector according to claim 3, further comprising four sets of supporting sliding columns (25), wherein the left front side, the left rear side, the right front side and the right rear side inside the limiting plate (20) are longitudinally provided with sliding through holes, the bottom ends of the four sets of supporting sliding columns (25) are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the inner wall of the bottom end of the pressure relief box (17), and the top ends of the four sets of supporting sliding columns (25) can respectively pass through the inside of the four sets of sliding through holes from the bottom end of the limiting plate (20) in a sliding manner and are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the bottom end of the limiting ring (19).

5. The bag-type dust collector according to claim 4, wherein the outer circumferential wall of the limiting plate (20) is sleeved with a sealing guide sleeve (26), and the outer circumferential wall of the sealing guide sleeve (26) is in slidable sealing contact with the inner circumferential wall of the pressure relief tank (17).

6. A bag-type dust collector as claimed in claim 5, characterized in that the bottom end of each group of nozzles (11) is arranged obliquely to the direction of the respective dust collecting bag (5).

7. The bag-type dust collector of claim 6, further comprising a diversion cover (27), wherein the diversion cover (27) is positioned in the upper chamber, the bottom end of the diversion cover (27) is communicated with the four sets of installation through holes, and the top end of the diversion cover (27) is communicated with the bottom input end of the dust collection fan (3).

8. The bag-type dust collector of claim 7, further comprising four sets of footing plates (28), wherein the top ends of the four sets of footing plates (28) are respectively connected with the bottom ends of the four sets of legs (8).