Bag type dust collector with protection function

Abstract

The utility model relates to the technical field of dust removal, in particular to a bag type dust collector with a protection function, which comprises a box body, a dust inlet and an air outlet, the dust inlet and the air outlet are arranged on the surface of the box body, a sealing plate is fixedly connected inside the box body, a filter bag is mounted at the lower end of the sealing plate, and a filter plate is fixedly connected inside the box body and positioned below the sealing plate. A cleaning and cooling mechanism is arranged in the box body and is used for reducing the temperature in the box body and cleaning dust on the surface of the filter plate. According to the utility model, the smoke is cooled and preliminarily filtered before entering the filter bag under the mutual matching of the cleaning mechanism and the filter plate, so that the phenomena of shrinkage, burnout, bag pasting and the like of the filter bag due to the fact that the temperature and the impurity content of the smoke exceed the bearing capacity of the filter bag of the dust remover can be avoided, and the effect of protecting the filter bag is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal, and in particular relates to a bag type dust collector with a protective function. Background Art

[0002] In recent decades, with the comprehensive advancement of my country's economic construction, the continuous progress of science and technology, and the increasing awareness of environmental protection, bag dust collectors, as an efficient environmentally friendly dust removal equipment and production process equipment, have been widely used in more and more fields.

[0003] Due to the reliability and high energy of pulse cleaning and the excellent performance of filter materials, bag dust collectors have become the mainstream of bag dust removal technology in the world. Especially in developed countries, bag dust removal technology is widely used in cement new dry rotary kiln head, kiln tail, coal-fired boilers, steel, chemical industry, foundry, etc.

[0004] However, the temperature and impurity content of the flue gas entering the dust collector exceed the bearing capacity of the dust collector filter bags, causing the filter bags to shrink, burn, and become stuck. In mild cases, the service life of the filter bags is greatly shortened. In severe cases, the dust collector filter bags may fail and the dust collector cannot operate normally. Utility Model Content

[0005] The purpose of the utility model is to provide a bag dust collector with a protective function to solve the problem in the prior art that the temperature and impurity content of the flue gas entering the dust collector exceed the bearing capacity of the dust collector filter bags, resulting in shrinkage, burning, and bag sticking of the filter bags, which greatly shortens the service life of the filter bags in mild cases and can cause the dust collector filter bags to fail and the dust collector cannot operate normally in severe cases.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bag dust collector with a protective function comprises a box body and a dust inlet and an air outlet arranged on the surface of the box body, a sealing plate is fixedly connected inside the box body, a filter bag is installed at the lower end of the sealing plate, a filter plate is fixedly connected inside the box body, the filter plate is located below the sealing plate, a cleaning and cooling mechanism is arranged inside the box body, and the cleaning and cooling mechanism is used to reduce the temperature inside the box body and clean the dust on the surface of the filter plate.

[0008] Preferably: the cleaning and cooling mechanism includes an air duct and an air outlet assembly, the air duct is rotatably connected inside the box, the side wall of the air duct is fixedly connected to a connecting pipe, an end of the connecting pipe away from the air duct is installed with an air outlet assembly, both sides of the air duct pass through the outside of the box, the side wall of the air duct located outside the box is fixedly connected to a first gear, the front end of the box is fixedly connected to a motor, and the output shaft end of the motor is fixedly connected to the rear end of the air duct.

[0009] Preferably: the air outlet assembly includes a sleeve and an inner tube, the end of the connecting tube away from the air duct is fixedly connected to the sleeve, the inner tube is slidably connected inside the sleeve, the rear end of the inner tube is fixedly connected to a push rod, the push rod passes through the rear wall of the sleeve, the inside of the box is fixedly connected to an arc-shaped protrusion, the push rod and the arc-shaped protrusion abut against each other, the front end of the inner tube is fixedly connected to a return spring, the end of the return spring away from the inner tube is fixedly connected to the inside of the sleeve, the side wall of the sleeve is provided with a first through hole, the side wall of the inner tube is provided with a second through hole, the first through hole is connected to the second through hole, and the side wall of the inner tube is provided with a reserved hole.

[0010] Preferably: a cleaning mechanism is provided inside the box, the cleaning mechanism is used to remove impurities above the filter plate, the cleaning mechanism includes an arc-shaped rack and a scraper, a mounting seat is fixedly connected inside the box, the mounting seat is provided with two groups and is located above the front and rear sides of the filter plate, an arc-shaped rack is slidably connected to the outer arc surface of the mounting seat, a scraper is fixedly connected between the two groups of the arc-shaped racks, and the lower end of the scraper abuts against the upper end of the filter plate.

[0011] Preferably: transmission mechanisms are provided at both ends of the rear end of the box body, the transmission mechanism includes a second gear and a third gear, a transmission rod is rotatably connected to the inside of the box body, the circumferential surface of the transmission rod is fixedly connected to the third gear, two groups of the third gear are provided and are located inside the box body, the third gear is meshed with an arc-shaped rack, the front and rear ends of the transmission rod are fixedly connected to the fourth gear, the outer wall of the fourth gear is meshed with a rack, the lower end of the rack is rotatably connected to a connecting rod, the front and rear ends of the box body are rotatably connected to the second gear, the end of the second gear away from the inside of the box body is rotatably connected to the connecting rod, and the second gear is meshed with the first gear.

[0012] Preferably: a partition mechanism is provided inside the box, the partition mechanism is provided with two groups and is located on both sides of the filter plate, the partition mechanism includes a guide plate and a rotating plate, the guide plate is fixedly connected inside the box, the lower end of the guide plate is rotatably connected to the rotating plate, the end of the rotating plate close to the inner wall of the box is fixedly connected to an arc spring, the end of the arc spring away from the rotating plate is fixedly connected to the lower end of the guide plate, and the end of the rotating plate away from the guide plate abuts against the upper end of the filter plate.

[0013] Preferably, the first through hole forms a certain angle with the horizontal plane, and the angle ranges from 45° to 90°.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can cool down and preliminarily filter the flue gas before it enters the filter bag through the cooperation of the cleaning and lowering mechanism and the filter plate, thereby preventing the flue gas temperature and impurity content from exceeding the bearing capacity of the dust collector filter bag, causing the filter bag to shrink, burn, or become stuck, thereby achieving the effect of protecting the filter bag.

[0016] 2. The utility model can clean the filter plate during the filtering process through the mutual cooperation of the cleaning and cooling mechanism, the transmission mechanism and the cleaning mechanism, so as to prevent impurities in the flue gas from adhering to the filter plate and clogging the filter plate, thereby achieving the effect of cleaning the filter plate and ensuring that the flue gas can flow normally inside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall main cross-sectional plan structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged structural diagram of part A in the middle;

[0020] Figure 4 This is a schematic diagram of the overall left-side cross-sectional structure of the utility model;

[0021] Figure 5 For this utility model Figure 4 The enlarged structural diagram of part B in the middle;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the casing of the utility model;

[0023] Figure 7 This is a schematic diagram of the inner tube structure of the utility model when viewed from above;

[0024] Figure 8 For this utility model Figure 2 Schematic diagram of the enlarged structure of part C in the middle.

[0025] In the figure: 1. box body; 11. dust inlet; 12. air outlet; 13. sealing plate; 14. filter bag; 15. arc-shaped protrusion; 2. filter plate; 3. cleaning and cooling mechanism; 31. air duct; 32. first gear; 33. connecting pipe; 34. air outlet assembly; 341. sleeve; 342. inner pipe; 343. reset spring; 344. first through hole; 345. second through hole; 346. push rod; 347. reserved hole; 4. transmission mechanism; 41. second gear; 42. connecting rod; 43. rack; 44. transmission rod; 45. third gear; 46. fourth gear; 5. cleaning mechanism; 51. mounting seat; 52. arc-shaped rack; 53. scraper; 6. partition mechanism; 61. guide plate; 62. rotating plate; 63. arc-shaped spring; 7. motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-Figure 4 As shown, the utility model provides a bag dust collector with a protective function, including a box body 1 and a dust inlet 11 and an air outlet 12 arranged on the surface of the box body 1, a sealing plate 13 is fixedly connected inside the box body 1, a filter bag 14 is installed at the lower end of the sealing plate 13, a filter plate 2 is fixedly connected inside the box body 1, the filter plate 2 is located below the sealing plate 13, and a cleaning and cooling mechanism 3 is arranged inside the box body 1, the cleaning and cooling mechanism 3 is used to reduce the temperature inside the box body 1 and clean the dust on the surface of the filter plate 2; the filter plate 2 can be preliminarily filtered through the arrangement of the filter plate 2, and then the bearing capacity of the filter bag 14 to the impurities can be reduced; the cleaning and cooling mechanism can be arranged to reduce the temperature in the flue gas, and then the burning and sticking of the filter bag 14 can be avoided, thereby achieving the effect of protecting the filter bag 14.

[0028] In a further embodiment, referring to Figure 2-Figure 3 The cleaning and cooling mechanism 3 includes an air duct 31 and an air outlet assembly 34. The air duct 31 is rotatably connected inside the box body 1, and a connecting pipe 33 is fixedly connected to the side wall of the air duct 31. An air outlet assembly 34 is installed at one end of the connecting pipe 33 away from the air duct 31. Both sides of the air duct 31 pass through the outside of the box body 1, and a first gear 32 is fixedly connected to the side wall of the air duct 31 outside the box body 1. A motor 7 is fixedly connected to the front end of the box body 1, and the output shaft end of the motor 7 is fixedly connected to the rear end of the air duct 31.

[0029] In this embodiment, high-pressure cold air from the outside is introduced into the connecting pipe 33 from the main pipe and then ejected from the air outlet assembly 34. The ejected high-pressure cold air can reduce the temperature of the flue gas on the one hand, and clean the filter plate 2 on the other hand.

[0030] In a further embodiment, referring to Figure 6-Figure 8 The air outlet assembly 34 includes a sleeve 341 and an inner tube 342, the end of the connecting tube 33 away from the air duct 31 is fixedly connected to the sleeve 341, the inner tube 342 is slidably connected inside the sleeve 341, the rear end of the inner tube 342 is fixedly connected to a push rod 346, the push rod 346 passes through the rear wall of the sleeve 341, the inside of the box body 1 is fixedly connected to an arc-shaped protrusion 15, the push rod 346 and the arc-shaped protrusion 15 abut against each other, the front end of the inner tube 342 is fixedly connected to a return spring 343, the end of the return spring 343 away from the inner tube 342 is fixedly connected to the inside of the sleeve 341, a first through hole 344 is opened on the side wall of the sleeve 341, a second through hole 345 is opened on the side wall of the inner tube 342, the first through hole 344 is connected to the second through hole 345, and a reserved hole 347 is opened on the side wall of the inner tube 342.

[0031] In this embodiment, the connecting pipe 33 is driven to rotate by the rotating main pipe, and the connecting pipe 33 drives the sleeve 341 to move. When the sleeve 341 moves to the front of the protrusion, the push rod 346 facilitates the protrusion to abut against each other, and drives the push rod 346 to move backward, thereby driving the inner tube 342 to move backward. The inner tube 342 moves backward and squeezes the return spring 343. The inner tube 342 moving backward makes the second through hole 345 connected with the first through hole 344, so that high-pressure cold air is ejected from the first through hole 344, achieving the effect of cooling and cleaning; when the moving push rod 346 is separated from the abutment of the protrusion, the inner tube 342 is driven to move backward by the recovery deformation of the return spring 343, so that the second through hole 345 and the first through hole 344 are staggered with each other, thereby achieving the effect of closing the first through hole 344.

[0032] In a further embodiment, referring to Figure 2-Figure 5 A cleaning mechanism 5 is provided inside the box body 1, and the cleaning mechanism 5 is used to remove impurities above the filter plate 2. The cleaning mechanism 5 includes an arc-shaped rack 52 and a scraper 53. A mounting seat 51 is fixedly connected inside the box body 1. The mounting seat 51 is provided with two groups and is located above the front and rear sides of the filter plate 2. The outer arc surface of the mounting seat 51 is slidably connected with the arc-shaped rack 52, and a scraper 53 is fixedly connected between the two groups of arc-shaped racks 52, and the lower end of the scraper 53 abuts against the upper end of the filter plate 2.

[0033] In this embodiment, the arc-shaped rack 52 slides on the upper end of the mounting seat 51 to drive the scraper 53 to move. Since the scraper 53 and the filter plate 2 abut against each other, the moving scraper 53 can clean the impurities on the upper end of the filter plate 2, thereby achieving the effect of cleaning the filter plate 2.

[0034] In a further embodiment, referring to Figure 1-Figure 5 A transmission mechanism 4 is provided at both ends of the rear end of the box body 1, and the transmission mechanism 4 includes a second gear 41 and a third gear 45. A transmission rod 44 is rotatably connected inside the box body 1, and a third gear 45 is fixedly connected to the circumferential surface of the transmission rod 44. Two groups of third gears 45 are provided and are located inside the box body 1. The third gear 45 is meshed with an arc-shaped rack 52. Fourth gears 46 are fixedly connected to the front and rear ends of the transmission rod 44. A rack 43 is meshed on the outer wall of the fourth gear 46. The lower end of the rack 43 is rotatably connected to the connecting rod 42. The front and rear ends of the box body 1 are rotatably connected to the second gear 41, and one end of the second gear 41 away from the inside of the box body 1 is rotatably connected to the connecting rod 42, and the second gear 41 is meshed with the first gear 32.

[0035] In this embodiment, the second gear 41 is driven to rotate by the rotation of the first gear 32, the rotating second gear 41 drives the connecting rod 42 to move, the movement of the connecting rod 42 drives the rack 43 to reciprocate up and down, the gear movement drives the fourth gear 46 to reciprocate, the first gear 32 rotates to drive the transmission rod 44 to rotate, the transmission rod 44 rotates to drive the third gear 45 to rotate, the third gear 45 rotates to drive the arc rack 52 to reciprocate, thereby providing power for the movement of the arc rack 52.

[0036] In a further embodiment, referring to Figure 3 A partition mechanism 6 is provided inside the box body 1. The partition mechanism 6 is provided with two groups and is located on both sides of the filter plate 2. The partition mechanism 6 includes a guide plate 61 and a rotating plate 62. The guide plate 61 is fixedly connected inside the box body 1. The lower end of the guide plate 61 is rotatably connected to the rotating plate 62. An end of the rotating plate 62 close to the inner wall of the box body 1 is fixedly connected to an arc spring 63. An end of the arc spring 63 away from the rotating plate 62 is fixedly connected to the lower end of the guide plate 61, and an end of the rotating plate 62 away from the guide plate 61 abuts against the upper end of the filter plate 2.

[0037] In this embodiment, when the machine is stopped, the rotating plate 62 is opened so that impurities on the upper end of the filter plate 2 can fall from the opening of the rotating plate 62, thereby achieving the effect of cleaning the impurities.

[0038] In a further embodiment, referring to Figure 8 The first through hole 344 forms a certain angle with the horizontal plane, and the angle ranges from 45° to 90°.

[0039] In this embodiment, the first through hole 344 forms a certain angle with the horizontal plane, so that the high-pressure cold air forms a certain angle with the lower end surface of the filter plate 2 when ejected, thereby facilitating the cleaning of impurities at the lower end of the filter plate 2.

[0040] The working principle of the utility model is as follows: the impurities in the smoke are initially filtered out through the filter plate 2, the pressure on the filter bag 14 is reduced, and then the motor 7 is started to drive the main pipe to rotate. While the main pipe is rotating, high-pressure cold air from the outside enters the inside of the main pipe, and then the connecting pipe 33 and the sleeve 341 are filled with high-pressure cold air. The main pipe rotates to drive the connecting pipe 33 to rotate, and the connecting pipe 33 rotates to drive the sleeve 341 to move. When the sleeve 341 moves to the front of the protrusion, the top rod 346 facilitates the protrusions to abut against each other, and then drives the top rod 346 to move backward, thereby driving the inner pipe 342 to move backward, and the inner pipe 342 moves backward to the complex The inner tube 342 moves backwards to make the second through hole 345 connected with the first through hole 344, so that high-pressure cold air is ejected from the first through hole 344. The ejected high-pressure cold air cleans the filter plate 2 and reduces the temperature in the flue gas, thereby protecting the filter bag 14 from the influence of the high-temperature flue gas. When the moving top rod 346 is separated from the contact of the protrusion, the inner tube 342 is driven to move backwards by the restoring deformation of the reset spring 343, so that the second through hole 345 and the first through hole 344 are staggered with each other, thereby achieving the effect of closing the first through hole 344, and preventing the impurities collected at the lower end of the box body 1 from being blown up;

[0041] When the main pipe rotates, the first gear 32 is driven to rotate, and the rotation of the first gear 32 drives the second gear 41 to rotate. The rotating second gear 41 drives the connecting rod 42 to move, and the movement of the connecting rod 42 drives the rack 43 to reciprocate up and down. The gear movement drives the fourth gear 46 to reciprocate. The rotation of the first gear 32 drives the transmission rod 44 to rotate, and the rotation of the transmission rod 44 drives the third gear 45 to rotate. The rotation of the third gear 45 drives the arc rack 52 to reciprocate. The arc rack 52 slides on the upper end of the mounting seat 51 and drives the scraper 53 to move. Since the scraper 53 and the filter plate 2 abut against each other, the moving scraper 53 can clean the impurities on the upper end of the filter plate 2, thereby achieving the effect of cleaning the upper end surface of the filter plate 2; when the arc rack 52 moves, one end of the arc rack 52 will abut against the rotating plate 62, thereby driving the rotating plate 62 to rotate, so that the impurities on the upper end of the filter plate 2 can fall from the place where the rotating plate 62 is rotated to the lower end of the box body 1.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag dust collector with a protective function, comprising a box body (1) and a dust inlet (11) and an air outlet (12) arranged on the surface of the box body (1), characterized in that: A sealing plate (13) is fixedly connected inside the box (1), a filter bag (14) is installed at the lower end of the sealing plate (13), a filter plate (2) is fixedly connected inside the box (1), the filter plate (2) is located below the sealing plate (13), and a cleaning and cooling mechanism (3) is arranged inside the box (1), the cleaning and cooling mechanism (3) is used to reduce the temperature inside the box (1) and clean dust on the surface of the filter plate (2).

2. The bag filter with protective function according to claim 1, characterized in that: The cleaning and cooling mechanism (3) comprises an air duct (31) and an air outlet assembly (34); the air duct (31) is rotatably connected inside the box (1); a connecting pipe (33) is fixedly connected to the side wall of the air duct (31); an air outlet assembly (34) is installed at one end of the connecting pipe (33) away from the air duct (31); both sides of the air duct (31) extend to the outside of the box (1); a first gear (32) is fixedly connected to the side wall of the air duct (31) located outside the box (1); a motor (7) is fixedly connected to the front end of the box (1); and an output shaft end of the motor (7) is fixedly connected to the rear end of the air duct (31).

3. The bag filter with protective function according to claim 2, characterized in that: The air outlet assembly (34) comprises a sleeve (341) and an inner tube (342); one end of the connecting tube (33) away from the air duct (31) is fixedly connected to the sleeve (341); the inner tube (342) is slidably connected inside the sleeve (341); a push rod (346) is fixedly connected to the rear end of the inner tube (342); the push rod (346) passes through the rear wall of the sleeve (341); an arc-shaped protrusion (15) is fixedly connected inside the box body (1); the push rod (346) and the arc-shaped protrusion are slidably connected inside the inner tube (342); (15) are abutted against each other, a reset spring (343) is fixedly connected to the front end of the inner tube (342), and one end of the reset spring (343) away from the inner tube (342) is fixedly connected to the inside of the sleeve (341), a first through hole (344) is opened on the side wall of the sleeve (341), a second through hole (345) is opened on the side wall of the inner tube (342), the first through hole (344) is connected to the second through hole (345), and a reserved hole (347) is opened on the side wall of the inner tube (342).

4. The bag filter with protective function according to claim 1, characterized in that: A cleaning mechanism (5) is provided inside the box body (1), and the cleaning mechanism (5) is used to remove impurities above the filter plate (2). The cleaning mechanism (5) comprises an arc-shaped rack (52) and a scraper (53). A mounting seat (51) is fixedly connected inside the box body (1). The mounting seat (51) is provided with two groups and is located above the front and rear sides of the filter plate (2). The outer arc surface of the mounting seat (51) is slidably connected with the arc-shaped rack (52). The scraper (53) is fixedly connected between the two groups of the arc-shaped rack (52), and the lower end of the scraper (53) abuts against the upper end of the filter plate (2).

5. The bag filter with protective function according to claim 1, characterized in that: A transmission mechanism (4) is provided at both ends of the rear end of the housing (1), and the transmission mechanism (4) comprises a second gear (41) and a third gear (45). A transmission rod (44) is rotatably connected inside the housing (1), and a third gear (45) is fixedly connected to the circumferential surface of the transmission rod (44). Two groups of the third gear (45) are provided and are located inside the housing (1). The third gear (45) is meshed with an arc-shaped rack (52). The front and rear ends of the transmission rod (44) are both fixedly connected with a fourth gear (46), and a rack (43) is meshed on the outer wall of the fourth gear (46). The lower end of the rack (43) is rotatably connected with a connecting rod (42). The front and rear ends of the housing (1) are both rotatably connected with the second gear (41), and one end of the second gear (41) away from the inside of the housing (1) is rotatably connected to the connecting rod (42), and the second gear (41) is meshed with the first gear (32).

6. The bag filter with protective function according to claim 1, characterized in that: A partition mechanism (6) is arranged inside the box body (1). The partition mechanism (6) is provided with two groups and is located on both sides of the filter plate (2). The partition mechanism (6) comprises a guide plate (61) and a rotating plate (62). The guide plate (61) is fixedly connected inside the box body (1). The lower end of the guide plate (61) is rotatably connected to the rotating plate (62). An end of the rotating plate (62) close to the inner wall of the box body (1) is fixedly connected to an arc spring (63). An end of the arc spring (63) away from the rotating plate (62) is fixedly connected to the lower end of the guide plate (61). An end of the rotating plate (62) away from the guide plate (61) abuts against the upper end of the filter plate (2).

7. The bag filter with protective function according to claim 3, characterized in that: The first through hole (344) forms a certain angle with the horizontal plane, and the angle ranges from 45° to 90°.

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