A bag dust collector

Abstract

The present application relates to a bag dust collector, and relates to the technical field of dust removal equipment, including a dust removal housing, a partition plate is installed inside the dust removal housing, a plurality of through holes are opened on the partition plate, a support frame is installed at the through holes, two layers of filter bags are sleeved on the support frame, and a cleaning mechanism for cleaning the bags is provided between the two layers of filter bags. The present application has the effect of maintaining the dust removal capacity of the bag dust collector.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal equipment, and in particular to a bag dust collector. Background Art

[0002] Bag dust collector is a dry dust filter that absorbs dust into the bag dust collector for collection, which can protect the working environment of the production site and prevent dust pollution. Usually, the bag dust collector generally includes a dust collector box, the upper end of the dust collector box is provided with an air outlet, the lower end is provided with an air inlet, and a dust removal cavity is provided inside. The lower half of the dust removal cavity is provided with an ash hopper, and the upper half is provided with a dust collection bag. It is suitable for capturing fine, dry, non-fibrous dust. After a period of dust accumulation in the bag, there will be too much dust and the bag will be blocked. Usually, nitrogen pressurized pulse backwashing and other methods are used to remove the accumulated dust.

[0003] When cleaning the dust bags, the dust bags expand due to the pulse wind pressure, which can easily lead to damage. If the staff fails to react and repair them in time, the bag dust collector will not be able to remove dust. Summary of the invention

[0004] The purpose of the present application is to provide a bag dust collector for maintaining the dust removal effect of the bag dust collector.

[0005] The bag dust collector provided in this application adopts the following technical solution:

[0006] A bag dust collector comprises a dust removal shell, a partition plate is installed inside the dust removal shell, a plurality of through holes are opened on the partition plate, a support frame is installed at the through holes, two layers of filter bags are sleeved on the support frame, and a cleaning mechanism for cleaning the bags is provided between the two layers of filter bags.

[0007] By adopting the above technical solution, the filter bag is provided with an inner and outer layer, thereby enabling double filtration, reducing residual impurities in the air, and further improving the filtering effect. In addition, when cleaning the dust on the filter bag, the pulse pressure is more concentrated on the inner filter bag, thereby reducing the damage to the outer filter bag. When one of the two filter bags is damaged, the other filter bag can still maintain the filtering effect, and the bag dust collector will not directly lose its filtering function. The cleaning mechanism can effectively clean the dust between the two filter bags, thereby improving the dust removal effect.

[0008] Optionally, the support frame includes an upper support ring and a lower support ring which are arranged opposite to each other from top to bottom, and the upper support ring is rotatably connected with a first connecting ring and a second connecting ring which are coaxially arranged, a plurality of first support rods are provided between the first connecting ring and the lower support ring, and a connecting block is also rotatably connected inside the lower support ring, the first support rod is slidably connected to the connecting block around the center line of the through hole, the second connecting ring is fixedly connected with a second support rod, and the end of the second support rod away from the second connecting ring is provided with a rotating rod rotatably connected to the connecting block, one of the filter cloth bags is arranged on the outside of the first support rod, and the other of the filter cloth bags is arranged on the outside of the second support rod.

[0009] By adopting the above technical solution, the filter bag mounted on the outside of the first support rod can rotate along with the axis of the first connecting ring of the first support rod, and the filter bag mounted on the outside of the second support rod rotates around the second connecting ring along with the second support rod. As a result, the cleaning mechanism located between the two layers of filter bags can clean the circumference of the filter bags during the rotation of the filter bags, thereby improving the cleaning efficiency and effect of the dust on the filter bags.

[0010] Optionally, the cleaning mechanism includes a plurality of cleaning rods arranged between two filter bags, all of the cleaning rods are evenly distributed around the center line of the through hole, the cleaning rods are provided with a plurality of eccentric wheels that can abut the side walls of the filter bags, one end of the cleaning rod is rotatably connected to a connecting rod, and the connecting rod is also fixedly connected to a connecting block, the other end of the cleaning rod is rotatably connected to an upper support ring, and the upper support ring is also provided with a driving assembly for rotating the cleaning rod.

[0011] By adopting the above technical solution, the driving assembly drives the cleaning rod to rotate, and the cleaning rod drives all the eccentric wheels to rotate. During the rotation process, the eccentric wheel cyclically hits the sides of the two filter bags through the end away from the eccentric, thereby beating the filter bags, so that the dust on the filter bags is shaken off. At the same time, the connecting rod and the cleaning rod support the connecting block to maintain the stability of the connecting block.

[0012] Optionally, the driving assembly includes a driven gear arranged at the end of the cleaning rod and rotatably connected to the upper support ring, the driven gear is meshed with a driving gear ring on the side facing the through hole, the driving gear ring is coaxially arranged with the upper support ring and rotatably connected, fan blades are arranged on the inner side of the driving gear ring, and the fan blades are located in the through hole.

[0013] By adopting the above technical solution, when the airflow passes through the through hole, the airflow drives the fan blades, the fan blades drive the active ring gear to rotate, the active ring gear drives the driven gear to rotate, and then drives the cleaning rod to rotate, thereby realizing the rotation of the cleaning rod without the need for an additional power source.

[0014] Optionally, a driving gear is further provided on the cleaning rod, and the driving gear is meshed with the first connecting ring and the second connecting ring for transmission.

[0015] By adopting the above technical solution, when the cleaning rod rotates, the driving gear drives the first connecting ring and the second connecting ring to rotate in opposite directions, so that the two layers of filter bags turn in opposite directions. When the airflow passes through the two filter bags, the filter bags can play a blocking role, thereby achieving a full filtering effect.

[0016] Optionally, the connecting block is provided with a debris removal component for cleaning impurities between the two filter bags, the debris removal component includes a rotating block rotatably connected to the connecting block, the rotating block is provided with a plurality of accommodating grooves evenly distributed around the axis of the rotating block, an end of the connecting block away from the through hole is provided with a debris removal port that can be connected to the accommodating grooves, a driving ring is rotatably connected to the connecting block, the first support rod is fixedly connected to the driving ring, and a gear set for transmission is provided between the driving ring and the rotating block.

[0017] By adopting the above technical solution, the dust retained between the two layers of filter bags is shaken down by the cleaning mechanism and enters the receiving groove of the connecting block. As the outer filter bags rotate, the driving ring drives the rotating block to rotate through the gear set. When the receiving groove containing the dust is directly opposite to the impurity discharge port, the dust is discharged along the impurity discharge port and then falls to the lower end of the dust removal shell.

[0018] Optionally, an exhaust fan is provided at the impurity exhaust port, and a gear set for transmission is provided between the exhaust fan and the driving ring.

[0019] By adopting the above technical solution, when the driving ring rotates, the driving ring also drives the exhaust fan to rotate. The exhaust fan accelerates the airflow at the impurity discharge port by rotating, thereby accelerating the falling of dust inside the containing tank and improving the impurity discharge efficiency.

[0020] Optionally, the interior of the cleaning rod is hollow, the eccentric wheel is provided with a spray hole connected to the interior of the cleaning rod, and the upper end of the dust removal shell is provided with an air injection pipe facing the interior of the cleaning rod.

[0021] By adopting the above technical solution, when pulse back pressure is performed, the airflow flows along the inside of the cleaning rod and sprays toward the filter bag through the spray hole, thereby quickly cleaning the dust on the filter bag.

[0022] Optionally, a heating rod parallel to the cleaning rod is provided between the two filter bags, and the heating rod is rotatably connected to the upper support ring and the connecting rod at the same time, and the heating rod is abutted against the filter bag on the first support rod at the same time.

[0023] By adopting the above technical solution, the heating rod is in contact with the outer filter bag, which can heat and dry the filter bag, thereby reducing the risk of the filter bag being damp and stuck with dust, making it easier to clean the filter bag.

[0024] Optionally, a limit plate overlapping the side surface of the partition plate is provided at the upper end of the upper support ring, a clamping block is slidably connected to the upper support ring, a limit spring is provided between the clamping block and the upper support ring, a clamping groove for inserting the clamping block is provided on the partition plate, and the clamping block gradually shrinks toward the end away from the center line of the upper support ring.

[0025] By adopting the above technical solution, the support frame is lowered from above the through hole until the limit plate abuts against the top of the partition plate, and at the same time the clamping block is inserted into the clamping groove, so that the support frame is restricted, thereby the support frame will not shake easily, thereby maintaining the stability of the support frame and the filter bag.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The filter bag is set with two layers, inner and outer, so that double filtration can be performed, which reduces the impurities remaining in the air and further improves the filtering effect. When one of the two filter bags is damaged, the other filter bag can still maintain the filtering effect, so that the bag filter will not directly lose its filtering function;

[0028] 2. The cleaning mechanism rotates the eccentric wheel to beat the filter bag, so that the dust on the filter bag is shaken off. At the same time, the connecting rod and the cleaning rod support the connecting block to keep the connecting block stable;

[0029] 3. The impurity removal component quickly removes impurities between the two layers of filter bags through the receiving groove. When the receiving groove containing dust is directly opposite to the impurity discharge port, the dust is discharged along the impurity discharge port and then falls to the lower end of the dust removal shell, thereby improving the impurity removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 is a schematic structural diagram of an upper support ring of an embodiment of the present application;

[0032] Figure 3 is a schematic structural diagram of a support frame according to an embodiment of the present application;

[0033] Figure 4 It is a structural schematic diagram of the impurity removal component of an embodiment of the present application;

[0034] In the figure, 1, dust removal shell; 2, partition plate; 21, through hole; 3, support frame; 31, upper support ring; 311, limit plate; 312, clamping block; 313, limit spring; 32, lower support ring; 33, first connecting ring; 331, first support rod; 332, positioning rod; 34, second connecting ring; 341, second support rod; 342, rotating rod; 35, connecting block; 351, debris discharge port; 4, filter bag; 5, cleaning mechanism; 51, cleaning rod; 52, eccentric wheel; 53, connecting rod; 54, heating rod; 6, driving assembly; 61, driven gear; 62, driving gear ring; 63, fan blade; 64, driving gear; 7, debris discharge assembly; 71, rotating block; 711, receiving groove; 72, driving ring; 73, exhaust fan. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0036] Embodiment: A bag dust collector, referring to Figure 1 and Figure 2 A partition plate 2 is installed inside the dust removal housing 1. A plurality of through holes 21 are formed on the partition plate 2. A support frame 3 is installed at the through holes 21. The support frame 3 includes an upper support ring 31 and a lower support ring 32 which are arranged opposite to each other from top to bottom. The upper support ring 31 is overlapped and installed in the through hole 21. A first connecting ring 33 and a second connecting ring 34 which are arranged coaxially are rotatably connected to the upper support ring 31. The diameter of the first connecting ring 33 is larger than the diameter of the second connecting ring 34. A plurality of first supporting rods 331 are arranged between the first connecting ring 33 and the lower supporting ring 32. The two ends of the first supporting rods 331 are respectively fixed on the first connecting ring 33 and the lower supporting ring 32. Two layers of filter cloth bags 4 are sleeved on the support frame 3. One layer of filter cloth bags 4 is arranged on the first connecting ring 33, and the other layer of filter cloth bags 4 is arranged on the second connecting ring 34. A cleaning mechanism 5 for cleaning the cloth bags is arranged between the two layers of filter cloth bags 4.

[0037] The filter bag 4 is arranged with an inner and outer layer, thereby enabling double filtration, reducing residual impurities in the air, and further improving the filtering effect. In addition, when cleaning the dust on the filter bag 4, the pulse pressure is more concentrated on the inner filter bag 4, thereby reducing the damage to the outer filter bag 4. When one of the two layers of filter bags 4 is damaged, the other filter bag 4 can still maintain the filtering effect, and the bag dust collector will not directly lose its filtering function. The cleaning mechanism 5 can effectively clean the dust between the two layers of filter bags 4 and improve the dust removal effect.

[0038] A limiting plate 311 is fixed to the upper end of the upper support ring 31 and overlapped on the upper side of the partition plate 2. A snap-fit ​​block 312 is slidably connected to the upper support ring 31. A limiting spring 313 is provided between the snap-fit ​​block 312 and the upper support ring 31. A snap-fit ​​groove for inserting the snap-fit ​​block 312 is provided on the partition plate 2. The snap-fit ​​block 312 gradually shrinks toward the end away from the center line of the upper support ring 31.

[0039] The support frame 3 is lowered from above the through hole 21 until the limiting plate 311 abuts against the top of the partition plate 2, and at the same time the clamping block 312 is inserted into the clamping groove, so that the support frame 3 is restricted, thereby the support frame 3 will not shake easily, maintaining the stability of the support frame 3 and the filter bag 4.

[0040] Reference Figure 2 and Figure 3 A connecting block 35 is also provided on the inner side of the lower support ring 32, and a positioning rod 332 is fixedly connected to the lower support ring 32. The end of the positioning rod 332 away from the lower support ring 32 is slidably connected to the connecting block 35 around the center line of the through hole 21, and a second supporting rod 341 parallel to the first supporting rod 331 is fixedly connected to the second connecting ring 34. A rotating rod 342 is fixed to the end of the second supporting rod 341 away from the second connecting ring 34, and the rotating rod 342 is rotatably connected to the connecting block 35. A filter bag 4 is sleeved on the outside of the first support rod 331, and another filter bag 4 is sleeved on the outside of the second support rod 341.

[0041] The filter bag 4 mounted on the outside of the first support rod 331 can rotate around the axis of the first connecting ring 33 along with the first support rod 331, and the filter bag 4 mounted on the outside of the second support rod 341 can rotate around the axis of the second connecting ring 34 along with the second support rod 341. Therefore, the cleaning mechanism 5 located between the two layers of filter bags 4 can clean the circumference of the filter bags 4 during the rotation of the filter bags 4, thereby improving the cleaning efficiency and effect of the dust on the filter bags 4.

[0042] The cleaning mechanism 5 includes a plurality of cleaning rods 51 arranged between the two filter bags 4, all of the cleaning rods 51 are evenly distributed around the center line of the through hole 21, a plurality of eccentric wheels 52 that can abut the side walls of the filter bags 4 on both sides are fixed on the cleaning rods 51, one end of the cleaning rods 51 is rotatably connected to a connecting rod 53, and the connecting rod 53 is also fixedly connected to the connecting block 35, the other end of the cleaning rod 51 is rotatably connected to the upper support ring 31, and the upper support ring 31 is also provided with a driving assembly 6 for rotating the cleaning rod 51.

[0043] Reference Figure 2 and Figure 4The driving assembly 6 drives the cleaning rod 51 to rotate, and the cleaning rod 51 drives all the eccentric wheels 52 to rotate. During the rotation process, the eccentric wheels 52 cyclically hit the sides of the two filter bags through the end away from the eccentricity, thereby beating the filter bags 4, so that the dust on the filter bags 4 is shaken off. At the same time, the connecting rod 53 and the cleaning rod 51 support the connecting block 35 to keep the connecting block 35 stable.

[0044] The driving assembly 6 includes a driven gear 61 arranged at the end of the cleaning rod 51 and rotatably connected to the upper support ring 31. The driven gear 61 is meshed with a driving ring gear 62 on the side facing the through hole 21. The driving ring gear 62 is coaxially arranged with the upper support ring 31 and rotatably connected. A fan blade 63 is installed on the inner side of the driving ring gear 62, and the fan blade 63 is located in the through hole 21.

[0045] When the airflow passes through the through hole 21, the airflow drives the fan blades 63, the fan blades 63 drive the active ring gear 62 to rotate, the active ring gear 62 drives the driven gear 61 to rotate, and then drives the cleaning rod 51 to rotate, thereby realizing the rotation of the cleaning rod 51 without the need for an additional power source.

[0046] The cleaning rod 51 is also provided with a driving gear 64, which is meshed with the first connecting ring 33 and the second connecting ring 34. When the cleaning rod 51 rotates, the driving gear 64 drives the first connecting ring 33 and the second connecting ring 34 to rotate in opposite directions, so that the two layers of filter bags 4 rotate in opposite directions. When the airflow passes through the two filter bags 4, the filter bags 4 can play a blocking role, thereby achieving a full filtering effect.

[0047] A heating rod 54 parallel to the cleaning rod 51 is also provided between the two filter bags 4. The heating rod 54 is rotatably connected to the upper support ring 31 and the connecting rod 53 at the same time, and the heating rod 54 abuts against the filter bag 4 on the first support rod 331. The heating rod 54 contacts the outer filter bag 4, and can heat and dry the filter bag 4, thereby reducing the filter bag 4 from being damp and stuck with dust, and facilitating the cleaning of the filter bag 4.

[0048] The connecting block 35 is provided with a debris removal component 7 for cleaning the impurities between the two filter cloth bags 4. The debris removal component 7 includes a rotating block 71 rotatably connected to the connecting block 35. The rotating block 71 is provided with a plurality of receiving grooves 711 evenly distributed around the axis of the rotating block 71. The end of the connecting block 35 away from the through hole 21 is provided with a debris removal port 351 that can be connected to the receiving groove 711. The connecting block 35 is rotatably connected with a driving ring 72. The first support rod 331 is fixedly connected to the driving ring 72. At the same time, a gear set for transmission is provided between the driving ring 72 and the rotating block 71. An exhaust fan 73 is installed at the debris removal port 351. A gear set for transmission is provided between the exhaust fan 73 and the driving ring 72. The gear set includes mutually meshing bevel gears.

[0049] The dust remaining between the two layers of filter bags 4 is shaken down by the cleaning mechanism 5 and enters the receiving groove 711 of the connecting block 35. As the outer filter bag 4 rotates, the driving ring 72 drives the rotating block 71 to rotate through the gear set. When the receiving groove 711 containing dust is directly opposite to the impurity discharge port 351, the dust is discharged along the impurity discharge port 351 and then falls to the lower end of the dust removal housing 1. When the driving ring 72 rotates, the driving ring 72 also drives the exhaust fan 73 to rotate. The exhaust fan 73 accelerates the airflow at the impurity discharge port 351 by rotating, thereby accelerating the falling of dust inside the receiving groove 711 and improving the impurity discharge efficiency.

[0050] In order to improve the cleaning efficiency, the cleaning rod 51 can also be hollow inside, and a spray hole connected to the inside of the cleaning rod 51 is opened on the eccentric wheel 52, and an air jet pipe facing the inside of the cleaning rod 51 is provided inside the upper end of the dust removal housing 1. When pulse back pressure is performed, the air flow flows along the inside of the cleaning rod 51 and sprays toward the filter bag 4 through the spray hole, thereby quickly cleaning the dust on the filter bag 4.

[0051] The implementation principle of the embodiment of the present application is: when the bag dust collector is working, the airflow passes through the two layers of bags in sequence, and then passes through the two layers of bags.

[0052] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bag dust collector, characterized in that: The dust removal device comprises a dust removal housing (1), wherein a partition plate (2) is installed inside the dust removal housing (1), wherein a plurality of through holes (21) are formed on the partition plate (2), wherein a support frame (3) is installed at the through holes (21), wherein two layers of filter bags (4) are sleeved on the support frame (3), wherein a cleaning mechanism (5) for cleaning the filter bags is provided between the two layers of filter bags (4), wherein the support frame (3) comprises an upper support ring (31) and a lower support ring (32) which are arranged opposite to each other from top to bottom, wherein a first connecting ring (33) and a second connecting ring (34) which are arranged coaxially are rotatably connected to the upper support ring (31), wherein the first connecting ring (33) and the lower support ring (3 2), a plurality of first support rods (331) are provided between the lower support ring (32), a connecting block (35) is rotatably connected inside the lower support ring (32), the first support rod (331) is slidably connected to the connecting block (35) around the center line of the through hole (21), a second support rod (341) is fixedly connected to the second connecting ring (34), a rotating rod (342) rotatably connected to the connecting block (35) is provided at one end of the second support rod (341) away from the second connecting ring (34), one of the filter cloth bags (4) is sleeved on the outside of the first support rod (331), and another of the filter cloth bags (4) is sleeved on the outside of the second support rod (341), The cleaning mechanism (5) comprises a plurality of cleaning rods (51) arranged between two filter bags (4), all of the cleaning rods (51) being evenly distributed around the center line of the through hole (21), the cleaning rods (51) being provided with a plurality of eccentric wheels (52) capable of abutting against the side walls of the filter bags (4), one end of the cleaning rod (51) being rotatably connected to a connecting rod (53), the connecting rod (53) being fixedly connected to a connecting block (35), the other end of the cleaning rod (51) being rotatably connected to an upper support ring (31), the upper support ring (31) being further provided with a driving assembly (6) for rotating the cleaning rod (51), the connecting block (35) being provided with a drive assembly (6) for rotating the cleaning rod (51), A debris removal component (7) for cleaning impurities between two filter bags (4), the debris removal component (7) comprising a rotating block (71) rotatably connected to a connecting block (35), the rotating block (71) being provided with a plurality of receiving grooves (711) evenly distributed around the axis of the rotating block (71), an impurity removal port (351) that can communicate with the receiving grooves (711) being provided at one end of the connecting block (35) away from the through hole (21), a driving ring (72) being rotatably connected to the connecting block (35), the first support rod (331) being fixedly connected to the driving ring (72), and a gear set for transmission being provided between the driving ring (72) and the rotating block (71).The driving assembly (6) comprises a driven gear (61) disposed at the end of the cleaning rod (51) and rotatably connected to the upper support ring (31); a driving gear ring (62) is meshed with the side of the driven gear (61) facing the through hole (21); the driving gear ring (62) is coaxially disposed with the upper support ring (31) and rotatably connected; a fan blade (63) is disposed inside the driving gear ring (62), and the fan blade (63) is located in the through hole (21); a driving gear (64) is also disposed on the cleaning rod (51); the driving gear (64) is meshed with the first connecting ring (33) and the second connecting ring (34) for transmission; when the cleaning rod (51) rotates, the driving gear (64) drives the first connecting ring (33) and the second connecting ring (34) to rotate in opposite directions.

2. A bag dust collector according to claim 1, characterized in that: An exhaust fan (73) is provided at the impurity exhaust port (351), and a gear set for transmission is provided between the exhaust fan (73) and the drive ring (72).

3. A bag dust collector according to claim 2, characterized in that: The cleaning rod (51) is hollow inside, the eccentric wheel (52) is provided with a spray hole connected to the inside of the cleaning rod (51), and the upper end of the dust removal housing (1) is provided with a spray pipe facing the inside of the cleaning rod (51).

4. A bag dust collector according to claim 1, characterized in that: A heating rod (54) parallel to the cleaning rod (51) is also provided between the two filter bags (4); the heating rod (54) is rotatably connected to the upper support ring (31) and the connecting rod (53); the heating rod (54) is also in contact with the filter bag (4) on the first support rod (331).

5. The bag filter according to claim 1, characterized in that: The upper end of the upper support ring (31) is provided with a limit plate (311) overlapped on the upper side of the partition plate (2); a clamping block (312) is slidably connected to the upper support ring (31); a limit spring (313) is provided between the clamping block (312) and the upper support ring (31); a clamping groove for inserting the clamping block (312) is provided on the partition plate (2); and the clamping block (312) gradually shrinks towards an end away from the center line of the upper support ring (31).

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