Blowback adjusting device of dust remover

Abstract

The utility model relates to the technical field of dust remover blowback, and provides a dust remover blowback adjusting device which comprises a blowpipe, a rotating pipe, an exhaust pipe and a blocking piece, the blowpipe is longitudinally inserted into a cloth bag, blowback gas generated by a blowback system can be more deeply transmitted to a lower side area of the cloth bag, and the rotating pipe can rotate around the rotating pipe. The rotating pipe rotates and is arranged outside the air blowing pipe in a communicating and sleeving mode, the exhaust pipe is circumferentially and tangentially arranged on the outer wall of the rotating pipe in a communicating mode, and the blocking piece is circumferentially arranged on the periphery of the air blowing pipe. The cloth bag at the part cannot be directly impacted by the blowing force of the gas, the expansion effect of the cloth bag is reduced, and the cloth bag generates a shaking effect under the continuous rotation of the rotating pipe, so that compared with the mode of purely expanding the cloth bag in the prior art, the dust can be more effectively shaken off, the reverse blowing frequency is reduced, and the dust removal efficiency is improved. And the effective service time of the bag-type dust collector is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collector backblowing, and in particular to a dust collector backblowing regulating device. Background Art

[0002] Industrial bag dust collector is a kind of high-efficiency dust removal device that uses bag as filter material, and also has the function of back-blowing self-cleaning of bag. The conventional cleaning method of bag dust collector in the prior art is: when the filter material resistance of bag dust collector reaches a certain specified value, it will automatically clean. At this time, the PLC program controls the opening and closing of pulse valve. First, the lifting valve is closed to cut off the filtered airflow, and then the electromagnetic pulse valve is opened. The compressed air expands rapidly in the upper box body in a very short time and rushes into the bag, causing the bag to expand and deform. Under the action of reverse airflow, the dust attached to the outer surface of the bag is stripped off and falls into the ash hopper. After cleaning, the electromagnetic pulse valve is closed, the lifting valve is opened, and the chamber resumes the filtering state. Cleaning is carried out in sequence from each chamber in the bag dust collector. From the beginning of the chamber cleaning to the beginning of the next cleaning is a cleaning cycle. Finally, the fallen dust falls into the ash hopper and is discharged through the ash discharge valve.

[0003] However, although this backblowing method can clean the bags, since the air outlet of the backblowing system is located above the bags, when the gas is blown downward, there is still a certain distance from the bottom of the bags, so that the lower side of the inner part of the bags cannot be immediately blown by the gas and expand rapidly, thereby reducing the cleaning efficiency. Moreover, when the gas is directly backblown, the force inside the bags remains almost unchanged, that is, the expansion of the bags remains unchanged. As we all know, the cleaning effect is better when the bags are shaken. When the shape of the expansion deformation remains the same every time, the dust on the surface of the bags is not shaken thoroughly during backblowing, thereby increasing the frequency of backblowing cleaning. The increased frequency of backblowing cleaning occupies the dust removal time of the bag collector, thereby affecting the normal and effective use efficiency of the industrial bag collector. Therefore, in combination with the existing backblowing system, an adjustment device is designed for its blowing output end to improve its backblowing effect on the bags, enhance the impact of the gas on the bags and the shaking of the bags themselves, thereby improving the cleaning effect on the bags. Utility Model Content

[0004] The utility model provides a dust collector back-blowing adjustment device, which solves the problems in the related art that the back-blowing effect is poor and the increase in frequency affects the effective use time of the bag dust collector.

[0005] The technical solution of the utility model is as follows: A dust collector backflush adjustment device includes a backflush system, the backflush system is installed on a filter cartridge, and also includes:

[0006] An air blowing pipe, the air blowing pipe is longitudinally inserted into the interior of the cloth bag;

[0007] Wherein, the input end of the air blowing pipe is connected to the output end of the back-blowing system;

[0008] A rotating tube, which rotates and is connected to the outside of the blowing tube;

[0009] The exhaust pipe is circumferential and tangentially connected to the outer wall of the rotating tube.

[0010] The baffle is arranged in a circle on the periphery of the air blowing pipe and is located inside the cloth bag.

[0011] Furthermore, an annular groove is provided on the blowing pipe at a position where the blowing pipe is rotatably connected to the rotating pipe, and an air outlet is provided on the annular groove;

[0012] An annular through groove is provided on the inner wall of the rotating tube, and the rotating tube is rotatably connected to the annular groove through the annular through groove;

[0013] Wherein, the air outlet is communicated with the rotating interior through an annular groove.

[0014] Furthermore, it also includes:

[0015] A rotating ring, the rotating ring being rotatably arranged at the upper side and the lower side of the outer wall of the blowing pipe;

[0016] Wherein, the top end and the bottom end of the baffle are respectively connected to the two rotating rings.

[0017] In addition to the above solutions, it also includes:

[0018] A wind blocking rod, the inner wall of each baffle being connected to the wind blocking rod;

[0019] The wind blocking rod is consistent with the baffle in length.

[0020] Optionally, the rotating tube is in sealed rotational connection with the outer edge of the annular groove.

[0021] Preferably, a plurality of rotating tubes are arranged equidistantly along the length direction of the blowing tube.

[0022] The working principle and beneficial effects of the utility model are:

[0023] 1. In the utility model, by setting the air blowing pipe, the back-blowing gas generated by the back-blowing system can be more deeply transmitted to the lower area of ​​the bag, so that the lower area of ​​the bag can be effectively affected by the blowing force of the back-blowing gas and expand rapidly, thereby achieving the purpose of comprehensive dust shaking.

[0024] 2. In the utility model, by providing a rotating tube and an exhaust pipe arranged on the rotating tube on a circumferential tangent line, when the back-blowing gas is discharged outward through the blowing tube, the rotating tube and the exhaust pipe, the gas discharged from all sides generates a reaction thrust, causing the rotating tube to rotate on the outer wall of the blowing tube, which can not only realize the circumferential, comprehensive and rapid blowing of the position where the rotating tube is provided in the bag, but also enable the rotating jet to make the bag in this part evenly stressed and expand rapidly.

[0025] 3. In the utility model, a baffle is provided, and the circumference of the baffle is arranged around the air blowing pipe. Due to the rotary jet of the rotating tube, when the gas blows onto the baffle during rotation, the blowing force of the gas on the bag is blocked by the baffle. The bag at this position cannot receive the direct impact of the blowing force of the gas, and its expansion effect will be reduced. Under the continuous rotation of the rotating tube, the bag at this position will be blocked by the baffle. At one time, it will be affected by the blowing force of the gas, and at another time, the blowing force will be blocked, so that the bag at this position will produce an alternating phenomenon of shrinkage and expansion, so that the bag will produce a "shaking" effect, which improves the shaking of dust on the outer surface of the bag, so that compared with the method of simply expanding the bag in the prior art, it can more effectively shake off the dust, reduce the frequency of backblowing, and increase the effective use time of the bag dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Figure 1 It is a schematic diagram of the structure of the air blowing pipe, the rotating pipe and the exhaust pipe in the utility model in cooperation with the back-blowing system and inside the filter cartridge;

[0028] Figure 2 This is a schematic diagram of the structure of the air blowing pipe, the rotating pipe and the exhaust pipe inside the cloth bag in the utility model;

[0029] Figure 3 It is a schematic diagram of the structure of the blow pipe, the rotating pipe and the exhaust pipe in the utility model in cooperation with the back-blowing system;

[0030] Figure 4 It is a schematic diagram of the structure of the blow pipe, the rotating pipe, the rotating ring, the baffle and the exhaust pipe in the utility model;

[0031] Figure 5 It is a structural schematic diagram of the utility model in which the baffle plate and the rotating ring are in a disassembled state;

[0032] Figure 6 It is a structural schematic diagram of the utility model in which the rotating pipe, the exhaust pipe and the air blowing pipe are in an exploded state;

[0033] Figure 7 For this utility model Figure 5 Schematic diagram of the local enlarged structure at point A in the middle.

[0034] In the figure: 1. backflush system; 2. filter cartridge; 3. air blowing pipe; 4. rotating pipe; 5. exhaust pipe; 6. annular groove; 7. air outlet; 8. rotating ring; 9. wind blocking rod; 10. baffle. DETAILED DESCRIPTION

[0035] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Examples, such as Figures 1 to 7 As shown, a dust collector back-blowing adjustment device includes a back-blowing system 1, which is installed on a filter cartridge 2, wherein the back-blowing system 1 is the back-blowing system 1 that comes with the original industrial bag dust collector, and mainly includes a back-blowing manifold, an electromagnetic pulse valve, a pressure-bearing joint, a nozzle pipe, a bracket, etc., and each bag is provided with a compressed air nozzle pipe (that is, the gas output end of the back-blowing system 1 shown in this application). During operation, each row of bags is generally set to be pulse-backblown and cleaned once at a certain interval, and a timer starts the electromagnetic valve once to spray pulse back-blowing air into the bags to achieve the purpose of bag expansion and cleaning, which is a well-known technology for those skilled in the art. Therefore, the structure of the back-blowing system 1 itself will not be described in detail here, and the present application does not improve its internal structure, and the focus is only on The gas output end is extended and designed, and the gas output position during backblowing is adjusted and designed. It also includes: a blowing pipe 3, a rotating pipe 4, an exhaust pipe 5 and a baffle 10. The blowing pipe 3 is longitudinally inserted into the interior of the cloth bag, and the input end of the blowing pipe 3 is connected with the output end of the backblowing system 1. Through the setting of the blowing pipe 3, the backblowing gas generated by the backblowing system 1 can be more deeply transmitted to the lower area of ​​the cloth bag, so that the lower area of ​​the cloth bag can be effectively affected by the blowing force of the backblowing gas and expand rapidly, so as to achieve the purpose of comprehensive dust shaking. The rotating pipe 4 is rotatably and connected to the outside of the blowing pipe 3, and the exhaust pipe 5 is circumferentially and tangentially connected to the outer wall of the rotating pipe 4. Correspondingly, an annular groove 6 is provided at the position where the blowing pipe 3 is rotatably connected to the rotating pipe 4, and an air outlet 7 is provided on the annular groove 6. Please refer to Figure 6The inner wall of the rotating tube 4 is provided with an annular groove, and the rotating tube 4 is rotatably connected with the annular groove 6 through the annular groove, and the air outlet hole 7 is communicated with the rotating interior through the annular groove, and the rotating tube 4 is rotatably connected with the outer edge of the annular groove 6 in a sealed manner. By providing the rotating tube 4 and the exhaust pipe 5 arranged on the rotating tube 4 on a circumferential tangent, when the back-blowing gas is discharged outward through the blowing tube 3, the rotating tube 4 and the exhaust pipe 5, the gas discharged from all sides generates a reaction thrust, so that the rotating tube 4 rotates on the outer wall of the blowing tube 3, which can not only realize the circumferential comprehensive and rapid blowing of the position where the rotating tube 4 is provided in the cloth bag, but also can make the cloth bag of this part be uniformly stressed and expand rapidly through its rotary jet. A plurality of rotating tubes 4 are equidistantly arranged along the length direction of the blowing tube 3, so that the inside of the cloth bag is uniformly subjected to the blowing force of the back-blowing gas.

[0037] On the basis of the above scheme, the baffle 10 is circumferentially arranged on the periphery of the blowing pipe 3, and the baffle 10 is located inside the cloth bag, and further includes: a rotating ring 8, the rotating ring 8 is rotatably arranged on the upper and lower sides of the outer wall of the blowing pipe 3, and the top and bottom ends of the baffle 10 are respectively connected to the two rotating rings 8, and further includes: a wind blocking rod 9, each of the inner walls of the baffle 10 is connected to a wind blocking rod 9, and the length of the wind blocking rod 9 is consistent with that of the baffle 10. In addition, the wind blocking rod 9 is triangular in shape, and the width of the wind blocking rod 9 is smaller than the width of the baffle 10. A short right-angled side of 9 is close to the output end of the exhaust pipe 5, and a baffle 10 is provided. The baffle 10 is circumferentially arranged around the blowing pipe 3. Due to the rotary jet of the rotating tube 4, when the gas blows onto the baffle 10 during rotation, the blowing force of the gas on the bag is blocked by the baffle 10. The bag at this position cannot receive the direct impact of the blowing force of the gas, and its expansion effect will be reduced. Under the continuous rotation of the rotating tube 4, the bag at this position will be blocked by the baffle 10, and one of them will be affected by the blowing force of the gas, and the other will be blocked by the blowing force. The baffle 10 is provided with a rotating ring 8, so that the baffle 10 can rotate relative to the air blowing pipe. When the rotating tube 4 rotates, the gas is discharged outward from the exhaust pipe 5. While the baffle 10 blocks the bag at this position, the gas blows to the edge of the wind blocking rod 9, generating a certain thrust on the wind blocking rod 9, so that multiple wind blocking rods 9 are all subjected to the thrust of the exhaust pipe 5, thereby prompting the rotating ring 8 (that is, the baffle 10) to rotate relative to the air blowing pipe 3, so that the position of the baffle 10 is constantly changing. The change in the position of the baffle 10 will cause the contraction and expansion positions of the corresponding bag positions to change, thereby further increasing the vibration effect of the bag itself, improving its shaking, and achieving the purpose of quickly shaking dust.

[0038] It should be noted that the space occupied by the rotating ring 8, the blowing pipe 3 and the baffle 10 related structures inside the bag is relatively small, and has little effect on the gas circulation during bag filtering. The drawings of this embodiment are only structural schematic diagrams, and their purpose is to clearly express the above-mentioned related structures, and are not the actual setting ratio between the bag and the cloth bag. In addition, sealing rings can be installed on both sides of the annular groove 6, and an annular placement groove suitable for the placement and relative rotation of the sealing ring can be provided on the inner wall of the rotating tube 4, so as to ensure the relative rotation between the rotating tube 4 and the blowing pipe 3 while improving the sealing effect, so that the gas is discharged outward from the exhaust pipe 5 as much as possible, and the rotation effect of the rotating tube 4 is improved. The sealing and rotating connection shown here is to achieve a relative sealing effect, not an absolute seal.

[0039] To summarize, the dust collector backblowing adjustment device first connects the blowing pipe 3 in the device with the output end of the backblowing system 1. A corresponding compressed air nozzle pipe is provided on the top of each bag, and the blowing pipe 3 is connected and installed at the bottom of the pipe. Under the action of the airflow, the purpose of automatically adjusting the blowing effect of the backblowing system 1 is achieved. When backblowing is required, compressed air enters the blowing pipe 3, and under the action of the exhaust pipe 5, the rotating tube 4 is rotated to achieve comprehensive blowing, so that the inside of the bag can achieve a fixed-point expansion effect. Then, with the cooperation of the baffle 10 and the setting of the wind-blocking rod 9, the position of the bag being blown is continuously changed, so that the bag can produce alternating actions of being inflated and not being inflated under the action of backblowing, so as to achieve the shaking of the bag itself, thereby shaking off the dust outside the bag. When the adjustment structure of the present application is used, compared with the prior art, the backblowing time is increased, but the overall backblowing frequency is reduced.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust collector backflush adjustment device, comprising a backflush system (1), wherein the backflush system (1) is mounted on a filter cartridge (2), and is characterized in that: Also includes: An air blowing pipe (3), the air blowing pipe (3) being longitudinally inserted into the interior of the cloth bag; Wherein, the input end of the air blowing pipe (3) is connected to the output end of the back-blowing system (1); A rotating tube (4), the rotating tube (4) being rotatable and connected to the outside of the blowing tube (3); An exhaust pipe (5), the exhaust pipe (5) being circumferentially arranged and tangentially connected to the outer wall of the rotating tube (4); A baffle (10), the baffle (10) being arranged in a circular shape on the periphery of the air blowing pipe (3), and the baffle (10) being located inside the cloth bag.

2. A dust collector backflush adjustment device according to claim 1, characterized in that: An annular groove (6) is provided at a position on the air blowing pipe (3) that is rotatably connected to the rotating pipe (4), and an air outlet hole (7) is provided on the annular groove (6); An annular through groove is provided on the inner wall of the rotating tube (4), and the rotating tube (4) is rotatably connected to the annular groove (6) via the annular through groove; The air outlet hole (7) is connected to the rotating interior through an annular through groove.

3. A dust collector backflush adjustment device according to claim 2, characterized in that: Also includes: A rotating ring (8), the rotating ring (8) being rotatably arranged at the upper side and the lower side of the outer wall of the blowing pipe (3); The top end and the bottom end of the baffle (10) are respectively connected to the two rotating rings (8).

4. A dust collector backflush adjustment device according to claim 3, characterized in that: Also includes: A wind blocking rod (9), wherein the inner wall of each baffle (10) is connected to the wind blocking rod (9); The wind blocking rod (9) and the baffle (10) have the same length.

5. A dust collector backflush adjustment device according to claim 4, characterized in that: The rotating tube (4) and the outer edge of the annular groove (6) are in sealed rotational connection.

6. A dust collector backflush adjustment device according to claim 5, characterized in that: A plurality of rotating tubes (4) are arranged at equal intervals along the length direction of the blowing tube (3).

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