Gas filtering and dust removing device for non-woven fabric production

Abstract

The invention relates to the technical field of dust removal equipment, in particular to a gas filtering and dust removal device for non-woven fabric production. Comprising a shell; the fixing plate is fixedly connected to the inner wall of the shell, a plurality of fixing holes are formed in the fixing plate, an n-shaped frame is fixedly connected to the position, close to the fixing holes, of the fixing plate, the n-shaped frame is fixedly connected with an air guide barrel, and the air guide barrel is fixedly connected with a fixing rod; the number of the rotating cylinders is the same as that of the fixing rods, the rotating cylinders are rotationally connected to the fixing rods, rotating rings are rotationally connected to all the fixing holes of the fixing plate, and supporting rods are arranged on the rotating rings; the filter bag is detachably connected to the rotating ring. When compressed gas cleans the filter bag, the filter bag is driven to rotate through the rotating ring and the supporting rod, the amount of fiber dust falling off from the filter bag and brought back to the area of the filter bag by unfiltered gas again is reduced, and the fiber dust brought back by the unfiltered gas is distributed on the surface of the filter bag more dispersedly.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, and in particular to a gas filtering and dust removal device for non-woven fabric production. Background Art

[0002] Non-woven fabrics are produced by combining fibers together through chemical or mechanical methods. Due to their unique properties, non-woven fabrics are widely used in various industries such as medical and industrial. In the process of non-woven fabric production, the fibers will go through processes such as opening, combing, and laying nets. A large amount of fiber dust will be generated in these processes. The fiber dust floating in the air will affect normal breathing and even cause respiratory diseases. Therefore, a bag dust collector is usually required to filter and remove dust from the gas containing fiber dust. After the existing bag dust collector has been used for a period of time, the fiber dust will cause the filter bag of the bag dust collector to be blocked, thereby triggering the pulse soot blowing device to blow out compressed gas to clean the filter bag. However, after the compressed gas blows off the fiber dust on the filter bag, part of the blown-off fiber dust will return to its original position on the filter bag under the drive of the unfiltered gas, resulting in secondary entrainment, which affects the cleaning effect of the filter bag. In addition, the filter bag is a vertically placed long strip. The compressed gas blown out by the pulse soot blowing device will have a reduced speed before reaching the lower side of the filter bag, and the cleaning effect on the lower half of the filter bag is poor. Summary of the invention

[0003] In order to overcome the shortcoming of the existing bag-type dust collector that secondary entrainment is easy to occur when cleaning the filter bag, the present invention provides a gas filtering and dust removal device for non-woven fabric production.

[0004] Technical solution: A gas filtration and dust removal device for non-woven fabric production, comprising:

[0005] A housing, wherein the housing is provided with a pulse sootblowing device;

[0006] A fixing plate is fixedly connected to the inner wall of the shell, the fixing plate is provided with a plurality of fixing holes, an n-shaped frame is fixedly connected to the fixing plate near the fixing holes, the n-shaped frame is fixedly connected to an air guide tube, and the air guide tube is fixedly connected to a fixing rod;

[0007] The rotating cylinder has the same number as the fixed rods and is rotatably connected to the fixed rods. An oil storage hole is provided in the middle of the rotating cylinder and is located in the air guide cylinder. The rotating cylinder is fixedly connected to a fan. All the fixed holes of the fixed plate are rotatably connected to a rotating ring. The rotating cylinder is fixedly connected to a plurality of sliding columns. The sliding columns are provided with fixed cylinders. The rotating ring is provided with the same number of support rods as those on the rotating cylinder. The support rods are fixedly connected to the adjacent fixed cylinders.

[0008] The number of filter bags is the same as the number of the rotating rings, and the filter bags are detachably connected to the rotating rings, and the support rods are in contact with adjacent filter bags;

[0009] The locking components, the number of which is the same as the number of the rotating drums, are arranged on the rotating drum, and the locking components are used to shrink the filter bag and fix its position.

[0010] Furthermore, the axis center line of the rotating cylinder coincides with the axis center line of the adjacent rotating ring.

[0011] Furthermore, the surface where the support rod contacts the adjacent filter bag is a curved surface.

[0012] Furthermore, the locking assembly comprises:

[0013] A plurality of truncated cone rings fixedly connected to the rotating cylinder;

[0014] A support plate is detachably connected to the filter bag, and the support plate is slidably connected to two symmetrically distributed limiting rods, the limiting rods are squeezed and limitedly matched with the truncated cone ring, and the two limiting rods are commonly fixed with a first elastic member;

[0015] Round rods, the number of which is the same as the number of the support rods in the same filter bag, are slidably fitted in adjacent support rods, the round rods are extrusion-fitted with the filter bag, and a second elastic member is fixedly connected between the round rods and the adjacent support rods;

[0016] A guide block is fixedly connected to the rotating cylinder, wherein the guide block is slidably connected to a sliding rod, and the sliding rod is fixedly connected to the support plate;

[0017] The unlocking assembly, the number of which is consistent with the number of the fixing holes of the fixing plate, is arranged on the rotating cylinder, and the unlocking assembly is used to release the limit between the limit rod and the truncated cone ring.

[0018] Furthermore, the unlocking component comprises:

[0019] An extrusion rod is sealingly and slidably connected to the oil storage hole of the rotating cylinder, and the extrusion rod is fixedly connected to a truncated cone shell;

[0020] The number of the sealing members is consistent with the number of the limiting rods on the support plate, and they are respectively fixed to the adjacent limiting rods. The two sealing members are jointly sealed and slidably connected with a sealing shell, and the sealing shell is fixedly connected to the support plate. The oil storage hole of the rotating cylinder is connected to the sealing shell through a pipeline.

[0021] Furthermore, the maximum outer diameter of the truncated cone shell is not greater than the outer diameter of the rotating cylinder.

[0022] Furthermore, it also includes:

[0023] Sliding blocks, the number of which is the same as the number of the support rods, are slidably connected to the rotating ring, the sliding blocks are fixedly connected to the adjacent support rods, and a third elastic member is fixedly connected between the support rods and the adjacent sliding columns;

[0024] The number of the extrusion components is consistent with the number of the fixing holes of the fixing plate, and is arranged on the rotating cylinder. The extrusion components are used to squeeze the filter bag to make it vibrate.

[0025] Furthermore, the extrusion assembly comprises:

[0026] A plurality of extrusion pins distributed circumferentially and fixedly connected to the limiting rod;

[0027] A rectangular shell, the number of which is the same as the number of the extrusion pins, is fixed to the rotating cylinder, the rectangular shell is slidably connected to a sliding plate, the extrusion pins are extrusion-matched with the adjacent sliding plates, and a fourth elastic member is fixed between the rectangular shell and the sliding plate;

[0028] The number of the extrusion columns is the same as that of the sliding plates, and the extrusion columns are fixed to the sliding plates. The extrusion columns are extrusion-matched with the filter bag.

[0029] Furthermore, a center line of the extrusion pin and a center line of the adjacent sliding plate are located on the same vertical plane.

[0030] Furthermore, the cross section of the extrusion column is T-shaped, and the surface where the extrusion column and the filter bag are in contact is a curved surface.

[0031] Compared with the prior art, the present invention has the following advantages: 1. When the filter bag is cleaned by compressed gas, the filter bag is driven to rotate by the rotating ring and the support rod, thereby reducing the amount of fiber dust that falls off the filter bag and is brought back to the filter bag area by the unfiltered gas, so that the fiber dust brought back by the unfiltered gas is more dispersed on the surface of the filter bag.

[0032] 2. The present invention uses a limiting rod to shrink the lower half of the filter bag after being blocked upward, shortening the distance from the air outlet of the pulse soot blowing device and enhancing the cleaning effect on the lower half of the filter bag.

[0033] 3. The present invention adapts to the deformation of the outer side of the filter bag caused by the compression of the compressed gas by the sliding of the support rod, thereby avoiding the influence of the outer side of the filter bag becoming loose due to excessive squeezing force between the support rod and the outer side of the filter bag, thereby affecting the filtering effect of the filter bag.

[0034] 4. When the compressed gas is blown into the filter bag, the sliding plate drives the extrusion column to continuously squeeze the outer side of the filter bag, causing it to vibrate and shake off part of the fiber dust, thereby enhancing the cleaning effect of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the three-dimensional structure of the pulse soot blowing device and the fixing plate of the present invention;

[0037] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating ring and the round rod of the present invention;

[0038] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting rod and the sliding rod of the present invention;

[0039] Figure 5 It is a schematic diagram of the three-dimensional structure of the support rod and the truncated cone shell of the present invention;

[0040] Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding column and the extrusion rod of the present invention;

[0041] Figure 7 It is a schematic diagram of the three-dimensional structure of the sliding rod and the extrusion pin of the present invention;

[0042] Figure 8 It is a schematic diagram of the three-dimensional structure of the truncated cone ring and the sealing member of the present invention.

[0043] The names and serial numbers of the parts in the figure are: 1. Shell, 3. Pulse soot blowing device, 4. Fixed plate, 5. N-shaped frame, 6. Air guide tube, 7. Fixed rod, 8. Rotating tube, 9. Fan, 10. Rotating ring, 11. Sliding column, 12. Fixed tube, 13. Support rod, 14. Filter bag, 1601. Cone ring, 1602. Support plate, 1603. Limit rod, 1604. First elastic member, 1605. Round rod, 1606. Second elastic member, 1607. Guide block, 1608. Sliding rod, 1701. Extrusion rod, 1702. Cone shell, 1703. Seal, 1704. Sealing shell, 1801. Sliding block, 1802. Third elastic member, 1901. Extrusion pin, 1902. Rectangular shell, 1903. Sliding plate, 1904. Fourth elastic member, 1905. Extrusion column. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] In the process of using existing bag dust collectors to filter gas during the production of non-woven fabrics, the filter bags are mainly cleaned by compressed gas. However, the detached fiber dust will be brought back to the outer side of the filter bag by the unfiltered gas, causing entrainment, resulting in secondary pollution and affecting the dust removal efficiency.

[0046] Embodiment 1: A gas filtration and dust removal device for nonwoven fabric production, such as Figure 1-Figure 8As shown, it comprises: a shell 1, the shell 1 is provided with a pulse soot blowing device 3; a fixed plate 4, fixedly connected to the inner wall of the shell 1, the fixed plate 4 is provided with a plurality of fixing holes, the fixed plate 4 is fixedly connected with an n-shaped frame 5 near its fixing holes, the n-shaped frame 5 is fixedly connected with an air guide tube 6, the air guide tube 6 is fixedly connected with a fixing rod 7; a rotating cylinder 8, the number of which is the same as the number of the fixing rods 7, and is rotatably connected to the fixing rod 7, the middle part of the rotating cylinder 8 is provided with an oil storage hole, and is located in the air guide tube 6, the rotating cylinder 8 is fixedly connected with a fan 9, all the fixing holes of the fixed plate 4 are rotatably connected with a rotating ring 10, and the axis of the rotating cylinder 8 is aligned with the adjacent The axis lines of the rotating ring 10 coincide, a plurality of sliding columns 11 are fixedly connected to the rotating cylinder 8, the sliding columns 11 are provided with fixed cylinders 12, the rotating ring 10 is provided with support rods 13 of the same number as the rotating cylinder 8, the support rods 13 are fixedly connected to adjacent fixed cylinders 12; the number of filter bags 14 is the same as the number of the rotating ring 10, and they are detachably connected to the rotating ring 10, the support rods 13 are in contact with adjacent filter bags 14, and the contact surface of the support rods 13 with the adjacent filter bags 14 is an arc surface; the number of locking components is the same as the number of the rotating cylinder 8, and they are provided on the rotating cylinder 8, and the locking components are used to shrink the filter bags 14 and fix their positions.

[0047] In the above scheme, the shell 1 is an existing device, and the shell 1 is provided with an air inlet, an air outlet and an ash discharge port, wherein the air inlet is located below the fixed plate 4, the ash discharge port is located on the lower side of the shell 1, and the air outlet is located above the fixed plate 4. The outside of the shell 1 is provided with an air inlet device, a dust conveying device, a discharge device and a pressure detection system, the air inlet of the shell 1 is connected with the external air inlet device, the air outlet of the shell 1 is connected with the discharge device, and the ash discharge port of the shell 1 is connected with the dust conveying device. The shell 1 is composed of a rectangular shell, legs and an ash hopper, and the ash hopper is provided with an inclined surface to gather the fiber dust sliding along the inner wall of the shell 1. The number of legs is four and they are distributed in a rectangular array. The pulse soot blowing device 3 is an existing device, the pressure detection system is electrically connected to the pulse soot blowing device 3, the pulse soot blowing device 3 is electrically connected to the pressure detection system, the pulse soot blowing device 3 is provided with an air outlet nozzle, the number of the air outlet nozzles is consistent with the number of the air guide tubes 6, and a plurality of air outlet nozzles are respectively located above adjacent air guide tubes 6, the fixed plate 4 is located at the upper part of the inner wall of the shell 1, and the fixed plate 4 is located at the upper part of the inner wall of the shell 1. The fixing holes on the fixed plate 4 are arranged in a rectangular array (the number of which can be adjusted according to specific usage conditions). The number of n-shaped frames 5 in the same fixed plate 4 is two, which are respectively located on the left and right sides of the fixing holes of the adjacent fixed plates 4. The two n-shaped frames 5 are fixedly connected to the adjacent air guide tubes 6. The middle part of the air guide tube 6 is provided with a through hole whose diameter increases first and then decreases from top to bottom. The air guide tube 6 is located below the rotating ring 10 and is used to guide the compressed gas to pass through and accelerate the flow rate of the compressed gas. The axis of the air guide tube 6 coincides with the axis of the rotating ring 10. The distance from the air guide tube 6 to the air outlet nozzle of the pulse soot blowing device can be adjusted according to specific usage conditions. The closer to the air outlet nozzle, the faster the rotation speed of the fan 9. The number of sliding columns 11 on the same rotating cylinder 8 is six distributed in a circular array, and they are all located below the fixed rod 7. The diameter of the circle corresponding to the arc surface of the support rod 13 is equal to the inner diameter of the filter bag 14, which is used to ensure that the annular side of the filter bag 14 is in a vertical state. The sizes of the support rod 13 and the filter bag 14 can be adjusted according to specific usage conditions.

[0048] like Figure 4-Figure 8As shown, the locking assembly includes: a truncated cone ring 1601, which has a plurality of truncated cone rings 1601 and is fixed to the rotating cylinder 8; a support plate 1602, which is detachably connected to the filter bag 14, and the support plate 1602 is slidably connected to two symmetrically distributed limiting rods 1603, the limiting rods 1603 are squeezed and limitedly matched with the truncated cone ring 1601, and the two limiting rods 1603 are commonly fixed to a first elastic member 1604; round rods 1605, the number of which is consistent with the number of support rods 13 in the same filter bag 14, and are slidably matched with adjacent support rods 13. Inside the rod 13, the round rod 1605 is squeezed and fitted with the filter bag 14, and a second elastic member 1606 is fixedly connected between the round rod 1605 and the adjacent support rod 13; the guide block 1607 is fixedly connected to the rotating cylinder 8, and the guide block 1607 is slidably connected with a sliding rod 1608, and the sliding rod 1608 is fixedly connected to the support plate 1602; the unlocking assembly, the number of which is consistent with the number of fixing holes of the fixing plate 4, is arranged on the rotating cylinder 8, and the unlocking assembly is used to release the limit between the limit rod 1603 and the truncated cone ring 1601.

[0049] In the above scheme, a plurality of truncated cone rings 1601 on the same rotating cylinder 8 are distributed in a circular array, and the spacing distance thereof can be adjusted according to the specific usage conditions. The upper diameter of the truncated cone ring 1601 is larger than the lower diameter. The support plate 1602 is located in the middle of the lower side surface inside the filter bag 14. The support plate 1602 is provided with two rectangular slide grooves symmetrically distributed on the left and right. The limit rod 1603 is composed of a rectangular long rod and a right-angled triangle block. The inclined surfaces of the two right-angled triangle blocks are located on the opposite sides thereof. The first elastic member 1604 is a tension spring, which is initially in a stretched state and is used to increase the force required for the two limit rods 1603 to move back to back. In order to reduce the force required, the number of round rods 1605 in the same filter bag 14 is six, and the lower ends of the six round rods 1605 are all provided with spherical surfaces for reducing the friction force on the inner side of the filter bag 14. The second elastic member 1606 is a spring. The guide block 1607 is located on the lower side of the rotating cylinder 8. The number of sliding rods 1608 on the same guide block 1607 is two, which is used to prevent the support plate 1602 from shaking when moving up and down. The length of the sliding rod 1608 can be adjusted according to actual use to ensure that when the lower side of the filter bag 14 is convex, the two sliding rods 1608 will not fall off the guide block 1607.

[0050] like Figure 5-Figure 8 As shown, the unlocking assembly includes: an extrusion rod 1701, which is sealingly and slidably connected to the oil storage hole of the rotating cylinder 8, the extrusion rod 1701 is fixedly connected to a conical shell 1702, and the maximum outer diameter of the conical shell 1702 is not greater than the outer diameter of the rotating cylinder 8; sealing members 1703, the number of which is consistent with the number of upper limit rods 1603 on the support plate 1602, and are respectively fixedly connected to adjacent limit rods 1603, and the two sealing members 1703 are jointly sealingly and slidably connected to a sealing shell 1704, the sealing shell 1704 is fixedly connected to the support plate 1602, and the oil storage hole of the rotating cylinder 8 is connected to the sealing shell 1704 through a pipeline.

[0051] In the above scheme, the oil storage hole, pipeline and the chamber composed of two seals 1703 and the sealing shell 1704 of the rotating cylinder 8 are filled with hydraulic oil. The upper side surface of the extrusion rod 1701 is located above the upper side surface of the rotating cylinder 8, which is used to make the conical shell 1702 closer to the adjacent air outlet nozzle. The maximum outer diameter of the conical shell 1702 is not larger than the maximum outer diameter of the rotating cylinder 8, which is used to reduce the obstruction of the compressed gas driving the fan 9 to rotate. The two seals 1703 are symmetrically distributed on the left and right, and the sealing shell 1704 is located in the middle of the two limit rods 1603.

[0052] When it is necessary to use this device to clean the fiber dust generated during the production of non-woven fabrics, first power on the pressure detection system, then open the air intake device, and the gas containing the fiber dust enters the interior of the shell 1 from the air inlet, and then passes through the filter bag 14 for filtration. Finally, the filtered gas flows from the air outlet of the shell 1 to the subsequent links. At the same time, the dust conveying device conveys the fiber dust sliding down the inner wall of the shell 1.

[0053] After using the device for dust removal for a long time, the filter bag 14 will be blocked by fiber dust, resulting in a decrease in its air permeability. Under the continuous air supply from the air intake device, the air pressure in the shell 1 rises, and the gas in the shell 1 begins to squeeze the inner wall of the shell 1 and the filter bag 14.

[0054] When the filter bag 14 is squeezed, the filter bag 14 tends to shrink, and the lower side of the filter bag 14 begins to move upward. The lower side of the filter bag 14 drives the support plate 1602 to move upward, and the support plate 1602 drives the two limit rods 1603 to move upward. The inclined surfaces of the right-angled triangle blocks in the two limit rods 1603 gradually approach the penultimate truncated cone ring 1601. After moving to a certain distance, the inclined surfaces of the right-angled triangle blocks in the two limit rods 1603 are squeezed with the outer side surface of the truncated cone ring 1601. Under the squeezing of the outer side surface of the truncated cone ring 1601, the two limit rods 1603 slide backwards along the adjacent rectangular slide grooves of the support plate 1602 respectively, and the two limit rods 1603 slide backwards while stretching the first elastic member 1604.

[0055] When the lower sides of the right-angled triangle blocks in the two limit rods 1603 pass through the lowest truncated cone ring 1601, they slide toward each other along the rectangular groove of the support plate 1602 driven by the first elastic member 1604 until they slide toward each other along the rectangular groove of the support plate 1602 to the maximum distance, completing the resetting of the two limit rods 1603.

[0056] When the blockage degree of the filter bag 14 further increases, as the support plate 1602 continues to move upward, the right-angled triangle blocks in the two limit rods 1603 contact with the remaining truncated cone rings 1601 in turn and repeat the above-mentioned actions until the support plate 1602 stops moving, causing the lower side surface of the filter bag 14 to shrink upward and stay at a certain position, so as to make the lower side surface of the filter bag 14 close to the air outlet nozzle of the pulse soot blowing device 3, thereby increasing the impact force of the compressed gas blown out of the air outlet nozzle of the pulse soot blowing device 3 on the lower side surface of the filter bag 14, and strengthening the cleaning force on the lower half of the filter bag 14.

[0057] When the support plate 1602 moves upward, the support plate 1602 drives the two sliding rods 1608 to move upward, so that the support plate 1602 is always located in the middle of the filter bag 14.

[0058] When the lower side of the filter bag 14 starts to move upward, the lower side of the filter bag 14 drives the six round rods 1605 to slide upward along the adjacent support rods 13 respectively. The six round rods 1605 slide upward to squeeze the adjacent second elastic members 1606 respectively, and the second elastic members 1606 are squeezed and compressed.

[0059] When the pressure detection system detects that the air pressure in the shell 1 rises to a certain value, the pressure detection system detects and controls the pulse soot blowing device 3 to open, and the air outlet of the pulse soot blowing device 3 begins to intermittently blow compressed gas into the adjacent filter bag 14. Part of the fiber dust falls off the filter bag 14 due to the impact of the compressed gas, and slides along the inner wall of the shell 1 to the ash discharge port, thereby clearing the blockage of the filter bag 14.

[0060] When compressed gas is blown into the adjacent filter bags 14, the compressed gas flows through the air guide tube 6 and drives the fan 9 to rotate. The fan 9 drives the six sliding columns 11 to rotate through the rotating cylinder 8. The sliding columns 11 drive the rotating ring 10 to rotate through the fixed cylinder 12 and the support rod 13, thereby rotating the filter bags 14, so as to reduce the probability of secondary entrainment of the fallen fiber dust by the gas blown into the air intake device back to the filter bag 14.

[0061] When compressed gas is blown in, the compressed gas pushes the truncated cone shell 1702 to move downward, and the truncated cone shell 1702 drives the extrusion rod 1701 to move downward. The extrusion rod 1701 squeezes the hydraulic oil of the rotating cylinder 8. The hydraulic oil in the rotating cylinder 8 is squeezed into the sealing shell 1704 through the pipeline. The increased hydraulic oil in the sealing shell 1704 squeezes the two seals 1703 to move backwards. The two seals 1703 move backwards until they slide to the maximum distance along the adjacent rectangular slide grooves of the support plate 1602 respectively. At this time, the right-angled triangle blocks in the two limiting rods 1603 release the limitation with the adjacent truncated cone ring 1601, and the two seals 1703 move backwards, driving the two limiting rods 1603 to move backwards. The two limiting rods 1603 move backwards to stretch the first elastic member 1604.

[0062] When the right-angled triangle blocks in the two limiting rods 1603 are released from the limiting position with the adjacent truncated cone ring 1601, under the action of the blowing force of the compressed gas, the middle part of the lower side of the filter bag 14 moves downward, the filter bag 14 drives the support plate 1602 to move downward, and the support plate 1602 drives the two sliding rods 1608 and the attached parts thereon to move downward until the lower side of the filter bag 14 is in a downward convex state, blowing the fiber dust off the filter bag 14.

[0063] When the filter bag 14 moves downward, the squeezing of the six round rods 1605 is released, and the round rods 1605 move downward and return to their original positions under the elastic force of the adjacent second elastic members 1606 .

[0064] When the pulse sootblowing device 3 stops blowing compressed gas, the filter bag 14 begins to recover under the action of its own elastic force and drives the support plate 1602 to move upward. The two limit rods 1603 are reset under the action of the elastic force of the first elastic member 1604 and drive the two seals 1703 to move toward each other. The two seals 1703 jointly squeeze the hydraulic oil in the sealing shell 1704. The hydraulic oil is squeezed and flows back to the oil storage hole of the rotating cylinder 8 through the pipeline, so that the squeezing rod 1701 is reset. At the same time, the support plate 1602 moves upward, driving the two sliding rods 1608 to slide upward along the guide block 1607 and reset.

[0065] The above-mentioned actions are continuously repeated so that the filter bag 14 can be continuously self-cleaned, thereby extending the service life of the device.

[0066] When the device is stopped from being used for dust removal, the external air intake device is stopped first, and the pulse soot blowing device 3 is started once through the pressure detection system, and the above actions are repeated. Finally, the pressure detection system is turned off and the filter bag 14 is replaced according to the blockage condition of the filter bag 14 to complete the resetting of the device.

[0067] In this embodiment, the rotating ring 10 is fixedly connected to the support rod 13, and the sliding column 11 is fixedly connected to the fixed cylinder 12. In subsequent embodiments, the rotating ring 10 is slidably connected to the support rod 13, and the sliding column 11 is slidably connected to the fixed cylinder 12.

[0068] When compressed gas is blown on the filter bag, the filter bag will be deformed and squeeze the support rod. Excessive squeezing force will make the filter bag loose and affect its use effect. It is difficult to effectively clean the fiber dust that adheres to the filter screen and forms a dust cake only by blowing with compressed gas.

[0069] Embodiment 2: Based on embodiment 1, Figure 6-Figure 8As shown, it also includes: sliding blocks 1801, the number of which is consistent with the number of support rods 13, which are slidably connected to the rotating ring 10, the sliding blocks 1801 are fixedly connected to the adjacent support rods 13, and a third elastic member 1802 is fixedly connected between the support rods 13 and the adjacent sliding columns 11; extrusion components, the number of which is consistent with the number of fixing holes of the fixing plate 4, are arranged on the rotating cylinder 8, and the extrusion components are used to squeeze the filter bag 14 to make it vibrate.

[0070] In the above solution, the number of the sliding blocks 1801 on the same rotating ring 10 is six, which are distributed in a ring array, and the third elastic member 1802 is a spring.

[0071] like Figure 4-Figure 8 As shown, the extrusion assembly includes: an extrusion pin 1901, which has a number distributed circumferentially and is fixed to the limiting rod 1603; a rectangular shell 1902, the number of which is the same as the number of the extrusion pins 1901, which is fixed to the rotating cylinder 8, the rectangular shell 1902 is slidably connected with a sliding plate 1903, the extrusion pin 1901 is extruded and matched with the adjacent sliding plate 1903, the center line of the extrusion pin 1901 and the center line of the adjacent sliding plate 1903 are located on the same vertical plane, and a fourth elastic member 1904 is fixed between the rectangular shell 1902 and the sliding plate 1903; an extrusion column 1905, the number of which is the same as the number of the sliding plate 1903, which is fixed to the sliding plate 1903, the extrusion column 1905 is extruded and matched with the filter bag 14, the cross-section of the extrusion column 1905 is T-shaped, and the surface where the extrusion column 1905 fits the filter bag 14 is an arc surface.

[0072] In the above scheme, the extrusion pin 1901 is located on the side of the limiting rod 1603 away from the rotating cylinder 8, the rectangular shell 1902 is located above the extrusion pin 1901, the sliding plate 1903 is composed of a sliding plate and an extrusion plate with a plurality of protrusions, and there is a gap between the plurality of protrusions for moving the sliding plate 1903 left and right. The extrusion pin 1901 squeezes the center line of the adjacent sliding plates 1903 to reduce the wear on the adjacent rectangular shells 1902 when the adjacent sliding plates 1903 slide along the adjacent rectangular shells 1902. The length of the sliding plate 1903 can be adjusted according to the specific usage to change the vibration time. The extrusion column 1905 is composed of a horizontal connecting rod and a vertical arc rod to increase the range of vibration caused by the extrusion column 1905 to the filter bag 14 and reduce damage to the inner side of the filter bag 14. The arc rod of the extrusion column 1905 is located in the middle and lower part of the filter bag 14 to strengthen the cleaning of the middle and lower areas that are prone to clogging.

[0073] When the air outlet of the pulse soot blowing device 3 blows compressed gas into the filter bag 14, the lower side surface of the filter bag 14 moves downward. After the lower side surface of the filter bag 14 moves downward until it returns to its initial state, the lower side surface of the filter bag 14 continues to move downward so that the lower side surface of the filter bag 14 is in a downward convex state. At this time, the annular side surface of the filter bag 14 is contracted toward the axial direction of the rotating ring 10 by the pulling force of the lower side surface, and squeezes the six support rods 13 to move toward the axial direction of the rotating ring 10. The support rods 13 drive the adjacent sliding blocks 1801 to slide toward the axial direction of the rotating ring 10. The support rods 13 drive the fixed cylinder 12 to slide along the adjacent sliding columns 11 in the axial direction and squeeze the adjacent third elastic member 1802, thereby further increasing the downward convexity of the lower side surface of the filter bag 14 and reducing the squeezing degree of the annular side surface of the filter bag 14 by the support rods 13, thereby avoiding damage to the annular side surface of the filter bag 14.

[0074] When the blockage degree of the filter bag 14 increases, the support plate 1602 moves upward continuously and drives the adjacent extrusion pin 1901 to move upward through the adjacent limiting rod 1603, so that the extrusion pin 1901 is located on the side of the adjacent sliding plate 1903 close to the adjacent rotating cylinder 8. When the gas outlet of the pulse soot blowing device 3 blows compressed gas into the filter bag 14, the two limiting rods 1603 slide in opposite directions to drive the two extrusion pins 1901 to move in opposite directions until they slide to the maximum distance along the rectangular slide groove on the support plate 1602. 1 squeezes the adjacent sliding plates 1903. When the support plate 1602 moves downward, the support plate 1602 drives the two squeezing pins 1901 to move downward. The squeezing pins 1901 sequentially squeeze the protrusions on the adjacent sliding plates 1903, so that the two sliding plates 1903 move back and forth. The sliding plates 1903 slide and stretch the adjacent fourth elastic members 1904. The sliding plates 1903 drive the squeezing columns 1905 to move back and forth. The squeezing columns 1905 squeeze the inner side surface of the filter bag 14 to make it vibrate, and shake off the fiber dust of the filter bag 14.

[0075] After the blowing of compressed gas stops, the support rod 13 drives the adjacent sliding block 1801 to move and reset in the direction away from the axis of the rotating ring 10 under the action of the elastic force of the adjacent third elastic member 1802. The six support rods 13 are reset and prop up the annular side of the filter bag 14, so that the support plate 1602 moves further upward. The support plate 1602 drives the two limiting rods 1603 to move upward, so that the right-angled triangle block inside the limiting rod 1603 is re-limited with the bottom truncated cone ring 1601. The two limiting rods 1603 move toward each other and reset under the pull of the first elastic member 1604. The limiting rod 1603 drives the adjacent extrusion pin 1901 to reset and release the extrusion on the sliding plate 1903. The sliding plate 1903 is reset under the action of the elastic force of the adjacent fourth elastic member 1904.

[0076] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas filtration and dust removal device for non-woven fabric production, characterized in that: include: A shell (1), wherein the shell (1) is provided with a pulse soot blowing device (3); A fixing plate (4) is fixedly connected to the inner wall of the shell (1), the fixing plate (4) being provided with a plurality of fixing holes, an n-shaped frame (5) being fixedly connected to the fixing plate (4) near the fixing holes, the n-shaped frame (5) being fixedly connected to an air guide tube (6), and the air guide tube (6) being fixedly connected to a fixing rod (7); The rotating cylinder (8) is the same in number as the fixed rod (7) and is rotatably connected to the fixed rod (7). An oil storage hole is provided in the middle of the rotating cylinder (8) and is located in the air guide cylinder (6). The rotating cylinder (8) is fixedly connected to a fan (9). All the fixing holes of the fixed plate (4) are rotatably connected to a rotating ring (10). The rotating cylinder (8) is fixedly connected to a plurality of sliding columns (11). The sliding columns (11) are provided with fixed cylinders (12). The rotating ring (10) is provided with support rods (13) of the same number as those on the rotating cylinder (8). The support rods (13) are fixedly connected to adjacent fixed cylinders (12). The number of filter bags (14) is the same as the number of the rotating rings (10), and they are detachably connected to the rotating rings (10), and the support rods (13) are in contact with adjacent filter bags (14); The number of locking components is the same as the number of the rotating cylinders (8), and they are arranged on the rotating cylinders (8). The locking components are used to shrink the filter bag (14) and fix its position.

2. A gas filtration and dust removal device for nonwoven fabric production according to claim 1, characterized in that: The axis center line of the rotating cylinder (8) coincides with the axis center line of the adjacent rotating ring (10).

3. The gas filtering and dust removal device for nonwoven fabric production according to claim 1, characterized in that: The surface where the support rod (13) contacts the adjacent filter bag (14) is a curved surface.

4. A gas filtration and dust removal device for nonwoven fabric production according to claim 2, characterized in that: The locking assembly comprises: A plurality of truncated cone rings (1601) are fixedly connected to the rotating cylinder (8); A support plate (1602) is detachably connected to the filter bag (14); the support plate (1602) is slidably connected to two symmetrically distributed limiting rods (1603); the limiting rods (1603) are pressed and limitedly matched with the truncated cone ring (1601); the two limiting rods (1603) are commonly fixedly connected to a first elastic member (1604); The number of round rods (1605) is the same as the number of the support rods (13) in the same filter bag (14), and they are slidably fitted in adjacent support rods (13). The round rods (1605) are squeeze-fitted with the filter bag (14), and a second elastic member (1606) is fixedly connected between the round rods (1605) and the adjacent support rods (13); A guide block (1607) is fixedly connected to the rotating cylinder (8); the guide block (1607) is slidably connected to a sliding rod (1608); and the sliding rod (1608) is fixedly connected to the support plate (1602); Unlocking components, the number of which is consistent with the number of fixing holes of the fixing plate (4), are arranged on the rotating cylinder (8), and the unlocking components are used to release the limit between the limit rod (1603) and the truncated cone ring (1601).

5. A gas filtering and dust removal device for nonwoven fabric production according to claim 4, characterized in that: The unlocking component comprises: An extrusion rod (1701) is sealingly and slidably connected to the oil storage hole of the rotating cylinder (8), and the extrusion rod (1701) is fixedly connected to a truncated cone shell (1702); The number of the sealing members (1703) is the same as the number of the limiting rods (1603) on the support plate (1602), and they are respectively fixed to adjacent limiting rods (1603). The two sealing members (1703) are jointly sealed and slidably connected to a sealing shell (1704). The sealing shell (1704) is fixedly connected to the support plate (1602), and the oil storage hole of the rotating cylinder (8) is connected to the sealing shell (1704) through a pipeline.

6. A gas filtration and dust removal device for nonwoven fabric production according to claim 5, characterized in that: The maximum outer diameter of the truncated cone shell (1702) is no greater than the outer diameter of the rotating cylinder (8).

7. A gas filtering and dust removal device for nonwoven fabric production according to claim 4, characterized in that: Also includes: Sliding blocks (1801), the number of which is the same as the number of the supporting rods (13), are slidably connected to the rotating ring (10), the sliding blocks (1801) are fixedly connected to the adjacent supporting rods (13), and a third elastic member (1802) is fixedly connected between the supporting rods (13) and the adjacent sliding columns (11); Extrusion assemblies, the number of which is the same as the number of the fixing holes of the fixing plate (4), are arranged on the rotating cylinder (8), and the extrusion assemblies are used to squeeze the filter bag (14) to make it vibrate.

8. The gas filtering and dust removal device for nonwoven fabric production according to claim 7, characterized in that: The extrusion assembly comprises: A plurality of extrusion pins (1901) distributed circumferentially and fixedly connected to the limiting rod (1603); A rectangular shell (1902), the number of which is the same as the number of the extrusion pins (1901), is fixedly connected to the rotating cylinder (8); the rectangular shell (1902) is slidably connected to a sliding plate (1903); the extrusion pins (1901) are extrusion-matched with the adjacent sliding plate (1903); and a fourth elastic member (1904) is fixedly connected between the rectangular shell (1902) and the sliding plate (1903); The number of extrusion columns (1905) is the same as the number of the sliding plates (1903), and they are fixed to the sliding plates (1903). The extrusion columns (1905) are extrusion-matched with the filter bag (14).

9. A gas filtering and dust removal device for nonwoven fabric production according to claim 8, characterized in that: The center line of the extrusion pin (1901) and the center line of the adjacent sliding plate (1903) are located on the same vertical plane.

10. The gas filtering and dust removal device for nonwoven fabric production according to claim 8, characterized in that: The cross section of the extrusion column (1905) is T-shaped, and the surface where the extrusion column (1905) fits the filter bag (14) is a curved surface.

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