Bag type dust collector with adjustable air inlet rate

Abstract

The utility model discloses a bag type dust collector with adjustable air inlet rate, and belongs to the field of bag type dust collectors. A bag type dust collector with the adjustable air inlet amount comprises a support, a box body is fixed to the upper side of the support, and a partition plate is fixed in the box body and used for dividing the interior of the box body into a dust area and a clean area from bottom to top; according to the bag type dust collector, the adjustable air volume adjusting mechanism and the centrifugal fan are matched with each other, the design of the bag type dust collector with the adjustable air inlet volume is achieved, when dust-containing gas is treated through the design, the air volume of the air inlet is flexibly controlled by adjusting the angle position of the arc-shaped blade so as to meet the filtering requirements of dust with different concentrations, and the dust collecting efficiency is improved; and through cooperation of the dust concentration mechanism and the quantitative material stirring mechanism on the discharging mechanism, dust in the conical hopper can be quantitatively discharged in time, and the problem of blockage caused by untimely discharging of a discharging opening is effectively solved through the design.

Description

Technical Field

[0001] The utility model relates to the field of bag dust collectors, in particular to a bag dust collector with adjustable air inlet volume. Background Art

[0002] With the continuous development of industrial production, the requirements for air quality are becoming higher and higher. Especially in the production process of cement and building materials industries, the generation of a large amount of dust has caused serious impacts on the environment and workers' health. Although the bag dust collectors on the market have solved the dust pollution problem to a certain extent, there are generally problems such as the air intake volume cannot be adjusted, resulting in low filtration efficiency and high maintenance costs.

[0003] In the prior art, bag dust collectors generally adopt a fixed air intake design, which cannot flexibly respond to changes in dust concentration at the production site. When the dust concentration is high, the fixed air intake design often leads to poor dust collection and difficulty in achieving the ideal dust removal effect; when the dust concentration is low, it will cause energy waste and reduce the operating efficiency of the equipment; in addition, if the dust discharge port of the traditional bag dust collector is not cleaned in time, the discharge port is easily clogged by dust. Therefore, in view of the shortcomings and defects of the prior art, it is necessary to make improvements to improve the performance and use effect of the bag dust collector. Utility Model Content

[0004] The purpose of the present invention is to provide a bag dust collector with adjustable air inlet volume to solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bag dust collector with adjustable air inlet volume comprises: a bracket, a box body is fixed on the upper side of the bracket, an isolation plate is fixed in the box body for dividing the box body from bottom to top into a dust area and a clean area, a plurality of filter bags are installed and fixed on the isolation plate, two conical hoppers are fixedly connected to the lower side of the dust area, the lower sides of the two conical hoppers are connected to a discharging mechanism, the discharging mechanism comprises a dust collecting mechanism and a quantitative feeding mechanism, an air inlet cavity is fixed to the outer side of the bottom of the dust area, a centrifugal fan and an air volume adjusting mechanism are fixed to the outer surface of the air inlet cavity, a centrifugal blade is fixed to the power output shaft of the centrifugal fan, the centrifugal blade is rotatably connected to the air inlet cavity, and an air outlet is fixed to the outer side of the top of the clean area.

[0007] Furthermore, a pulse dust removal device is fixed on the outside of the box, and a plurality of nozzles are connected to the pulse dust removal device via a connecting pipe. The nozzles are located in the clean area and directly above the filter bag.

[0008] Furthermore, the air volume regulating mechanism is located at the input end of the air inlet cavity tube, and is provided with a U-shaped fixing plate and arc-shaped blades. The U-shaped fixing plate is fixedly connected to the outer side of the air inlet cavity tube, and the arc-shaped blades are rotatably connected to the air inlet cavity tube via a rotating shaft. A screw rod is rotatably connected inside the U-shaped fixing plate, and a wire sleeve is threadedly connected to the screw rod. The wire sleeve is slidably connected to the U-shaped fixing plate, and one end of the wire sleeve is rotatably connected to a connecting rod, which is hinged to a fixed rod fixed to the outer end of the rotating shaft.

[0009] Furthermore, a hand crank is fixedly connected to the outer end of the screw rod.

[0010] Furthermore, the size of the arc-shaped blades is adapted to the size of the air inlet at the input end of the air inlet cavity tube.

[0011] Furthermore, the dust collection mechanism is provided with a feed drum, which is fixedly connected between the two conical hoppers and the upper side of the feed drum is communicated with the lower discharge port of the conical hopper, a spiral feed roller is rotatably connected inside the feed drum, and a discharge cavity tube is provided on the quantitative material discharging mechanism, the discharge cavity tube is fixedly connected to the end portion on the lower side of the feed drum, a toothed material discharging blade is rotatably connected inside the discharge cavity tube, and a cloth bag opening is fixedly connected to the lower side of the discharge cavity tube.

[0012] Furthermore, a motor 1 is fixed to the outside of the end of the feeding barrel, and the output shaft of the motor 1 is fixedly connected to the spiral material roller through a coupling. A motor 2 is fixed to the outside of the discharge cavity tube, and the output shaft of the motor 2 is fixedly connected to the toothed material discharging blade through a coupling.

[0013] Compared with the prior art, the utility model provides a bag-type dust collector with adjustable air inlet volume, which has the following beneficial effects:

[0014] In the utility model, an adjustable air volume regulating mechanism and a centrifugal fan are arranged to cooperate with each other, thereby realizing a bag dust collector design with adjustable air inlet volume. When processing dust-containing gases, this design flexibly controls the air volume at the air inlet to adapt to the filtering requirements of dust with different concentrations by adjusting the angular position of the arc-shaped blades, thereby improving the dust collecting efficiency. Through the cooperation of the dust concentration mechanism and the quantitative material feeding mechanism on the discharging mechanism, the dust in the conical hopper can be discharged quantitatively in time. This design effectively avoids the blockage problem caused by untimely discharge of the discharge port. The utility model improves the problems of fixed air volume and high maintenance cost of traditional bag dust collectors, and provides strong support for environmental protection and workers' health. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front structural schematic diagram of a bag-type dust collector with adjustable air inlet volume proposed by the utility model;

[0016] Figure 2This is a rear structural schematic diagram of a bag-type dust collector with adjustable air inlet volume proposed by the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of a bag-type dust collector with adjustable air inlet volume proposed by the utility model;

[0018] Figure 4 The utility model provides a bag-type dust collector with adjustable air inlet volume. Figure 3 Schematic diagram of the structure of part A;

[0019] Figure 5 This is a schematic diagram of the structure of an air volume regulating mechanism of a bag-type dust collector with adjustable air volume proposed by the utility model;

[0020] Figure 6 The utility model discloses a cross-sectional structural diagram of an air volume regulating mechanism of a bag-type dust collector with adjustable air volume.

[0021] In the figure: 1. bracket; 2. box body; 21. isolation plate; 22. conical hopper; 23. air outlet; 3. filter bag; 4. pulse dust removal equipment; 41. connecting pipe; 42. nozzle; 5. air inlet cavity tube; 6. centrifugal fan; 61. centrifugal blade; 7. air volume adjustment mechanism; 71. U-shaped fixing plate; 72. screw rod; 73. screw sleeve; 74. connecting rod; 75. rotating shaft; 76. arc blade; 8. discharging mechanism; 81. feeding barrel; 82. spiral material roller; 83. discharging cavity tube; 84. toothed material discharging blade; 85. bag mouth. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Embodiment 1:

[0025] Reference Figure 1-6A bag dust collector with adjustable air inlet volume comprises: a bracket 1, a box body 2 is fixed on the upper side of the bracket 1, an isolation plate 21 is fixed in the box body 2, which is used to separate the box body 2 from bottom to top into a dust area and a clean area, a plurality of filter bags 3 are installed and fixed on the isolation plate 21, two conical hoppers 22 are fixedly connected to the lower side of the dust area, and the lower sides of the two conical hoppers 22 are connected to a discharging mechanism 8, the discharging mechanism 8 includes a dust concentration mechanism and a quantitative feeding mechanism, an air inlet cavity pipe 5 is fixed to the outer side of the bottom of the dust area, a centrifugal fan 6 and an air volume adjustment mechanism 7 are fixed to the outer surface of the air inlet cavity pipe 5, a centrifugal blade 61 is fixed on the power output shaft of the centrifugal fan 6, and the centrifugal blade 61 is rotatably connected to the air inlet cavity pipe 5, and an air outlet 23 is fixed to the outer side of the top of the clean area.

[0026] A pulse dust removal device 4 is fixed to the outside of the box body 2 , and a plurality of nozzles 42 are connected to the pulse dust removal device 4 via a connecting pipe 41 . The nozzles 42 are located in the clean area and directly above the filter bag 3 .

[0027] The air volume regulating mechanism 7 is located at the input end of the air inlet cavity tube 5, and is provided with a U-shaped fixing plate 71 and an arc-shaped blade 76. The U-shaped fixing plate 71 is fixedly connected to the outer side of the air inlet cavity tube 5, and the arc-shaped blade 76 is rotatably connected to the air inlet cavity tube 5 through a rotating shaft 75. A screw rod 72 is rotatably connected to the U-shaped fixing plate 71, and a wire sleeve 73 is threadedly connected to the screw rod 72. The wire sleeve 73 is slidably connected to the U-shaped fixing plate 71, and one end of the wire sleeve 73 is rotatably connected to a connecting rod 74, and the connecting rod 74 is hinged to a fixed rod fixed to the outer end of the rotating shaft 75.

[0028] The outer end of the screw rod 72 is fixedly connected with a hand crank; Figure 5 As shown, through the hand crank at the left end of the screw rod 72, the operator can drive the screw rod 72 to rotate through the hand crank according to the use needs, so as to conveniently adjust the opening angle of the arc-shaped blade 76 appropriately.

[0029] The size of the arc-shaped blade 76 is adapted to the size of the air inlet at the input end of the air inlet cavity tube 5 .

[0030] Embodiment 2:

[0031] The difference between this embodiment and embodiment 1 is that:

[0032] A feeding cylinder 81 is provided on the dust collection mechanism, and the feeding cylinder 81 is fixedly connected between the two conical hoppers 22, and the upper side of the feeding cylinder 81 is communicated with the lower discharge port of the conical hopper 22, and a spiral material roller 82 is rotatably connected in the feeding cylinder 81, and a discharge cavity tube 83 is provided on the quantitative material feeding mechanism, and the discharge cavity tube 83 is fixedly connected to the lower end of the feeding cylinder 81, and a toothed material feeding blade 84 is rotatably connected in the discharge cavity tube 83, and a cloth bag opening 85 is fixedly connected to the lower side of the discharge cavity tube 83.

[0033] A motor 1 is fixed to the outside of the end of the feeding cylinder 81, and the output shaft of the motor 1 is fixedly connected to the spiral material roller 82 through a coupling. A motor 2 is fixed to the outside of the discharge cavity 83, and the output shaft of the motor 2 is fixedly connected to the toothed material-discharging blade 84 through a coupling.

[0034] Working principle: Before the utility model works, the angle position of the arc blade 76 on the air volume adjustment mechanism 7 can be adjusted according to the use needs, such as Figure 5 , Figure 6 As shown, the screw rod 72 on the air volume adjustment mechanism 7 is rotated, and the screw rod 72 can drive the threaded sleeve 73 to slide left and right in the U-shaped fixed sheet 71 through the thread, and the threaded sleeve 73 can drive the rotating shaft 75 to rotate through the connecting rod 74 and the fixed rod in turn, and the rotating shaft 75 drives the arc blade 76 in the air inlet cavity tube 5 to deflect. As the angle of the arc blade 76 changes, the air volume of the air inlet of the air inlet cavity tube 5 also changes accordingly to meet the filtering needs of dust with different concentrations;

[0035] When working, starting the centrifugal fan 6 can drive the centrifugal blades 61 in the air inlet cavity tube 5 to rotate, and the dust-containing gas enters the dust area in the box body 2 through the air inlet of the air inlet cavity tube 5. Figure 2 , Figure 3 As shown, part of the dust adheres to the outer surface of the filter bag 3, and the other part of the dust with higher density falls downward into the conical hopper 22 due to gravity. The gas filtered by the filter bag 3 passes upward through the isolation plate 21 into the clean area and is finally discharged from the air outlet 23. Starting the pulse dust removal device 4 can make the high-pressure gas pass through the connecting pipe 41 and be ejected downward from the nozzle 42 to act on the filter bag 3 directly below. The surface tension of the filter bag 3 changes, and the dust particles attached to the surface of the filter bag 3 can be quickly shaken off to achieve the purpose of dust removal, so as to ensure the filtering effect of the filter bag 3 on the dust-containing gas, and the shaken-off dust particles fall downward into the conical hopper 22;

[0036] While the above structure filters the dust in the dust-laden gas, the motors 1 and 2 on the discharge mechanism 8 are started. The motor 1 starts to drive the spiral roller 82 to rotate. The spiral blades on the spiral roller 82 can carry the dust discharged from the lower discharge of the two conical hoppers 22 and collect it into the discharge cavity 83. The motor 2 is started to drive the toothed material-discharging blade 84 to rotate at a uniform speed. The blades on the toothed material-discharging blade 84 allow the collected dust to be quantitatively discharged outward through the bag mouth 85, thereby effectively avoiding the problem of poor discharge or blockage at the lower discharge port at the bottom of the conical hopper 22, which affects the production efficiency.

Claims

1. A bag dust collector with adjustable air inlet volume, comprising: A support (1) is characterized in that a box body (2) is fixed on the upper side of the support (1), an isolation plate (21) is fixed inside the box body (2) for dividing the box body (2) from bottom to top into a dust zone and a clean zone, a plurality of filter bags (3) are fixedly installed on the isolation plate (21), two conical hoppers (22) are fixedly connected to the lower side of the dust zone, the lower sides of the two conical hoppers (22) are connected to a discharge mechanism (8), the discharge mechanism (8) includes a dust collection mechanism and a quantitative feeding mechanism, an air inlet cavity (5) is fixed on the outer side of the bottom of the dust zone, a centrifugal fan (6) and an air volume adjustment mechanism (7) are fixed on the outer surface of the air inlet cavity (5), a centrifugal blade (61) is fixed on the power output shaft of the centrifugal fan (6), and the centrifugal blade (61) is rotatably connected to the air inlet cavity (5), and an air outlet (23) is fixed on the outer side of the top of the clean zone.

2. The bag dust collector with adjustable air inlet volume according to claim 1, characterized in that: A pulse dust removal device (4) is fixed on the outside of the box (2), and a plurality of nozzles (42) are connected to the pulse dust removal device (4) via a connecting pipe (41). The nozzles (42) are located in the clean area and directly above the filter bag (3).

3. The bag dust collector with adjustable air inlet volume according to claim 1, characterized in that: The air volume regulating mechanism (7) is located at the input end of the air inlet cavity tube (5). The air volume regulating mechanism (7) is provided with a U-shaped fixing plate (71) and an arc-shaped blade (76). The U-shaped fixing plate (71) is fixedly connected to the outer side of the air inlet cavity tube (5). The arc-shaped blade (76) is rotatably connected to the air inlet cavity tube (5) via a rotating shaft (75). A screw rod (72) is rotatably connected to the inside of the U-shaped fixing plate (71). A threaded sleeve (73) is threadedly connected to the screw rod (72). The threaded sleeve (73) is slidably connected to the inside of the U-shaped fixing plate (71). One end of the threaded sleeve (73) is rotatably connected to a connecting rod (74). The connecting rod (74) is hinged to a fixing rod fixed to the outer end of the rotating shaft (75).

4. The bag dust collector with adjustable air inlet volume according to claim 3, characterized in that: The outer extension end of the screw rod (72) is fixedly connected with a hand crank.

5. The bag dust collector with adjustable air inlet volume according to claim 3, characterized in that: The size of the arc-shaped blade (76) is adapted to the size of the air inlet at the input end of the air inlet cavity tube (5).

6. The bag dust collector with adjustable air inlet volume according to claim 1, characterized in that: The dust collecting mechanism is provided with a feeding cylinder (81), the feeding cylinder (81) is fixedly connected between the two conical hoppers (22), and the upper side of the feeding cylinder (81) is communicated with the lower discharge port of the conical hopper (22), a spiral material roller (82) is rotatably connected inside the feeding cylinder (81), and the quantitative material dispensing mechanism is provided with a discharge cavity tube (83), the discharge cavity tube (83) is fixedly connected to the lower end of the feeding cylinder (81), a toothed material dispensing blade (84) is rotatably connected inside the discharge cavity tube (83), and a cloth bag opening (85) is fixedly connected to the lower side of the discharge cavity tube (83).

7. The bag dust collector with adjustable air inlet volume according to claim 6, characterized in that: A motor 1 is fixed to the outside of the end of the feeding cylinder (81), and the output shaft of the motor 1 is fixedly connected to the spiral material roller (82) through a coupling. A motor 2 is fixed to the outside of the discharge cavity tube (83), and the output shaft of the motor 2 is fixedly connected to the toothed material discharging blade (84) through a coupling.

Images