A forced insertion dust removal device for a cloth bag dust collector

Abstract

The application relates to a forced intervention type dust removal device for a cloth bag dust remover, which comprises a sealing ring, a first ring channel is arranged in the sealing ring, a second ring channel is arranged on the inner side of the first ring channel, a stabilizing ring is connected through a supporting pipe below the sealing ring, the stabilizing rings are arranged in multiple groups at intervals, a plurality of air nozzles are arranged on the side walls of the stabilizing rings, and adjacent air nozzles are communicated with the first ring channel and the second ring channel respectively. In the application, the air nozzles on the stabilizing ring can provide stable support for the cloth bag, when one air nozzle inhales, adjacent air nozzles blow, so that the cloth bag is high-frequency vibrated in a small range, dust on the cloth bag can be peeled off, the vibration amplitude of the cloth bag is reduced, the damage probability of the cloth bag is reduced, and the service life of the cloth bag is prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of dust collectors, and particularly relates to a forced intervention type dust removal device for a bag-type dust collector. BACKGROUND

[0002] The bag-type dust collector is a dust removal equipment for treating dust, and needs to be cleaned to prolong the service life of the dust collector. The bag-type dust collector usually adopts four dust removal modes, i.e. physical cleaning, sound wave cleaning, pulse cleaning and counter-flow cleaning.

[0003] The pulse cleaning has the advantage of cleaning while working and has better dust removal effect. The compressed air is introduced into the venturi tube, the surrounding air is induced to be sprayed into the bag in a very short time, the bag is made to pulse expand and vibrate, and the dust on the bag is stripped under the action of the counter-flow. However, this dust removal mode also has a big disadvantage. Since high-pressure compressed air is used, the damage to the dust removal bag is relatively serious when the bag expands and contracts at a high frequency. Therefore, the cleaning by this mode needs to be limited to the use of the bag which is thick, wear-resistant and strong in tensile force. SUMMARY

[0004] In view of the above, in order to overcome the defects of the prior art, the application provides a forced intervention type dust removal device for a bag-type dust collector, which at least partially solves the above problems.

[0005] The technical scheme adopted by the application is as follows: the forced intervention type dust removal device for the bag-type dust collector comprises a fixing frame, and the fixing frame is arrayed with alternating vibration mechanisms. The pitch of the alternating vibration mechanisms is the same as the pitch of the bags of the bag-type dust collector, so that all the alternating vibration mechanisms can be inserted into the bags at one time.

[0006] Further, a plurality of longitudinal air pipes are arranged on the fixing frame, a first cavity is arranged on the longitudinal air pipe, a second cavity is arranged on one side of the first cavity, a first transverse air pipe and a second transverse air pipe are respectively arranged on the longitudinal air pipe, the first transverse air pipe is communicated with the first cavity, and the second transverse air pipe is communicated with the second cavity.

[0007] Further, a first interface is arranged on the first transverse air pipe, a second interface is arranged on the second transverse air pipe, and the first interface and the second interface are communicated with the gas source of alternating suction air.

[0008] Further, the alternating vibration mechanism comprises a sealing ring, the sealing ring is arranged on the fixing frame, a first annular channel is arranged in the sealing ring, a second annular channel is arranged on the inner side of the first annular channel, a third interface and a fourth interface are respectively arranged on the upper wall of the sealing ring, the lower end of the third interface is communicated with the first annular channel, and the lower end of the fourth interface is communicated with the second annular channel.

[0009] Furthermore, the upper end of the third interface is connected to the first cavity, and the upper end of the fourth interface is connected to the second cavity.

[0010] Furthermore, the alternating vibration machine also includes multiple sets of spaced-apart stabilizing rings. The stabilizing rings are connected to the bottom of the sealing ring via support tubes and are spaced in the vertical direction to provide a certain support to the inner wall of the bag at different heights.

[0011] Furthermore, in order to apply the alternating airflow in the first and second ring channels to the fabric bag and cause the fabric bag to vibrate at high frequency, multiple sets of air nozzles are provided on the side wall of the stabilizing ring, and adjacent air nozzles are respectively connected to the first and second ring channels.

[0012] Furthermore, the first ring channel is provided with multiple sets of first working holes, the second ring channel is provided with multiple sets of second working holes, the first working holes and the second working holes are arranged at intervals, the lower wall of the sealing ring is provided with a lower binding ring, the lower binding ring is provided with multiple sets of second positioning holes, and adjacent second positioning holes are respectively connected to the first working holes and the second working holes.

[0013] Furthermore, the stabilizing ring is provided with multiple sets of first positioning holes, the first positioning holes are connected to the air nozzle, the support tube connects the first positioning hole and the second positioning hole in the uppermost stabilizing ring, and the support tube connects the first positioning holes on adjacent stabilizing rings.

[0014] Furthermore, the first positioning hole and the second positioning hole are arranged in a circumferential array in the circumferential direction, the first working hole and the second working hole are also arranged in a circumferential array in the circumferential direction, and the air nozzle is arranged in a circumferential array in the circumferential direction.

[0015] Furthermore, the lower wall of the sealing ring is provided with a sealing gasket, which is sealed to the upper opening of the cloth bag to prevent dust from being shaken off inside the bag and thrown up.

[0016] Furthermore, in order to be applicable to bag filters with different pipe diameters, multiple sets of extended tubes are provided on the side wall of the stabilizing ring, the air nozzle is slidably sleeved on the extended tube, the end of the air nozzle is provided with a flange, and a spring is provided between the flange and the side wall of the stabilizing ring.

[0017] The beneficial effects achieved by this invention are as follows: the stabilizing rings are spaced apart in the vertical direction of the bag, and the uniformly spaced air nozzles on the stabilizing rings can provide stable support for the bag. When one air nozzle draws air, the adjacent air nozzle blows air. The air nozzle that draws air will adsorb and fix the bag, and the air nozzle that blows air will cause the bag to expand, thereby causing the bag to vibrate at high frequency in a small range. This can not only remove dust from the bag, but also reduce the vibration amplitude of the bag, reduce the probability of damage to the bag, and improve the service life of the bag. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the forced intervention dust removal device for a bag filter according to an embodiment of the present invention;

[0019] Figure 2 This is a partial sectional view of the fixing frame;

[0020] Figure 3 This is a schematic diagram of the alternating vibration mechanism;

[0021] Figure 4 This is a cross-sectional view of the stabilizing ring;

[0022] Figure 5 This is a cross-sectional view of the sealing ring.

[0023] Among them, 1. fixed frame, 2. alternating vibration mechanism, 3. longitudinal air tube, 4. first horizontal air tube, 5. second horizontal air tube, 6. first interface, 7. second interface, 8. sealing ring, 9. support tube, 10. stabilizing ring, 11. third interface, 12. fourth interface, 13. sealing gasket, 14. first positioning hole, 15. extension tube, 16. air nozzle, 17. flange, 18. spring, 19. first ring channel, 20. second ring channel, 21. first working hole, 22. second working hole, 23. lower binding ring, 24. second positioning hole, 25. first cavity, 26. second cavity.

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] like Figure 1As shown, the forced intervention type dust removal device for cloth bag dust collector provided by the embodiment of the present application comprises a fixing frame 1, and the fixing frame 1 is provided with alternately vibrating mechanisms 2 arranged in an array, the alternately vibrating mechanisms 2 are used for vibrating and removing dust from the cloth bag, the spacing of the alternately vibrating mechanisms 2 is the same as the spacing of the cloth bag of the cloth bag dust collector, so as to insert all the alternately vibrating mechanisms 2 into the cloth bag at one time.

[0028] As shown, Figure 2 the fixing frame 1 is provided with multiple groups of longitudinal air pipes 3, the longitudinal air pipes 3 are provided with first cavities 25, one side of the first cavities 25 is provided with second cavities 26, the alternately vibrating mechanisms 2 are in communication with the first cavities 25 and the second cavities 26, the longitudinal air pipes 3 are respectively provided with first transverse air pipes 4 and second transverse air pipes 5, the first transverse air pipes 4 are in communication with the first cavities 25, and the second transverse air pipes 5 are in communication with the second cavities 26.

[0029] The first transverse air pipes 4 are provided with first interfaces 6, the second transverse air pipes 5 are provided with second interfaces 7, the first interfaces 6 and the second interfaces 7 are in communication with the air source of alternately sucking air, that is, when the first interfaces 6 are filled with air to form positive pressure, the second interfaces 7 suck air to form negative pressure, when the second interfaces 7 are filled with air to form positive pressure, the first interfaces 6 suck air to form negative pressure, under the action of the first cavities 25 and the second cavities 26, in cooperation with the first interfaces 6 and the second interfaces 7, the alternately vibrating mechanisms 2 will also form the airflow of alternately sucking air, the positive pressure airflow in the alternately vibrating mechanisms 2 can blow air to the cloth bag to make the cloth bag locally expand, the negative pressure airflow in the alternately vibrating mechanisms 2 can fix the cloth bag to avoid the cloth bag expanding too much, the two kinds of air make the surface of the cloth bag high-frequency staggered fluctuate, thereby forming the effect of vibrating and removing dust, and the cloth bag can also be protected to avoid being damaged due to too large deformation.

[0030] As shown, Figure 3 and Figure 5 the alternately vibrating mechanisms 2 comprise sealing rings 8, the sealing rings 8 are arranged on the fixing frame 1, the sealing rings 8 are provided with first ring channels 19, the inner side of the first ring channels 19 is provided with second ring channels 20, the upper walls of the sealing rings 8 are respectively provided with third interfaces 11 and fourth interfaces 12, the lower end of the third interface 11 is in communication with the first ring channel 19, and the lower end of the fourth interface 12 is in communication with the second ring channel 20; in combination with Figure 2 as shown, the upper end of the third interface 11 is in communication with the first cavity 25, and the upper end of the fourth interface 12 is in communication with the second cavity 26, so that the first ring channel 19 and the second ring channel 20 alternately suck air and blow air.

[0031] As shown, Figure 1 the alternately vibrating mechanisms further comprise multiple groups of stably arranged stabilizing rings 10, the stabilizing rings 10 are connected to the lower side of the sealing rings 8 through support pipes 9, that is, the stabilizing rings 10 are arranged in multiple groups in the vertical direction to adapt to the arrangement direction of the cloth bag in the cloth bag dust collector, and the arrangement in the vertical direction can produce a certain supporting effect on the inner wall of the cloth bag at different heights.

[0032] As Figure 4 shown, in order to make the alternating airflow in the first and second annular channels 19 and 20 act on the cloth bag, and make the cloth bag vibrate, a plurality of air nozzles 16 are arranged on the side wall of the stabilizing ring 10, and adjacent air nozzles 16 are respectively communicated with the first and second annular channels 19 and 20.

[0033] As Figure 5 shown, a plurality of first working holes 21 are arranged in the first annular channel 19, and a plurality of second working holes 22 are arranged in the second annular channel 20. The first and second working holes 21 and 22 are arranged at intervals, and the lower wall of the sealing ring 8 is provided with a lower ring 23, and a plurality of second positioning holes 24 are arranged on the lower ring 23. Adjacent second positioning holes 24 are respectively communicated with the first and second working holes 21 and 22.

[0034] A plurality of first positioning holes 14 are arranged on the stabilizing ring 10, and the first positioning holes 14 are communicated with the air nozzles 16. The support pipe 9 makes the first positioning holes 14 in the uppermost stabilizing ring 10 communicated with the second positioning holes 24, and the support pipe 9 makes the first positioning holes 14 on the upper and lower adjacent stabilizing rings 10 communicated. Under the action of the first and second working holes 21 and 22, the support pipe 9, the first and second positioning holes 14 and 24, the direction of the airflow in the adjacent air nozzles 16 will change alternately. One group of airflow enters the air nozzle 16 through the first working hole 21, the support pipe 9, the second positioning hole 24 and the first positioning hole 14, and the other group of airflow enters the air nozzle 16 through the second working hole 22, the support pipe 9, the second positioning hole 24 and the first positioning hole 14. The two groups of airflow are opposite in direction, and respectively generate positive pressure airflow and negative pressure airflow in different directions, so as to exert forces in different directions on the positions of the inner wall of the cloth bag close to each other, so that the cloth bag vibrates, and at the same time, the amplitude of the local cloth bag is reduced, and the cloth bag is protected.

[0035] In order to make the cloth bag vibrate more stably, and make the amplitude uniform everywhere, and not produce the condition that the local fluctuation is large and the local fluctuation is small, the first and second positioning holes 14 and 24 are arranged in a circumferential array in the circumferential direction, the first and second working holes 21 and 22 are also arranged in a circumferential array in the circumferential direction, and the air nozzles 16 are arranged in a circumferential array in the circumferential direction.

[0036] The lower wall of the sealing ring 8 is provided with a sealing gasket 13, which is sealingly matched with the upper end opening of the cloth bag, so as to avoid the dust stripped by the vibration of the cloth bag from rising up.

[0037] In order to be suitable for cloth bags with different pipe diameters, as Figure 4As shown, the side wall of the stabilizing ring 10 is provided with a plurality of extension tubes 15, the air nozzle 16 is slidably sleeved on the extension tube 15, the end of the air nozzle 16 is provided with a flange 17, the flange 17 and the side wall of the stabilizing ring 10 are provided with a spring 18, the spring 18 always pushes the air nozzle 16 outward, so that the air nozzle 16 always adheres to the inner wall of the cloth bag, so that the air flow better acts on the surface of the cloth bag, when the diameter of the cloth bag is small, the inner wall of the cloth bag will compress the air nozzle 16 to overcome the resistance of the spring 18, so that the air nozzle 16 shrinks inward.

[0038] The specific working principle is as follows:

[0039] Place the fixed frame 1 at the upper end of the cloth bag dust collector, make the alternating vibration mechanism 2 inserted into the cloth bag in turn, connect the first interface 6 and the second interface 7 to the gas source, the gas source can alternately inject or suck compressed gas into the first interface 6 and the second interface 7 at a set frequency, the air flow forms two channels, respectively passing through the first horizontal air pipe 4, the first cavity 25, the first interface 6, and the second horizontal air pipe 5, the second cavity 26, the second interface 7, and finally entering the first annular channel 19 and the second annular channel 20 respectively, when the first interface 6 is filled with positive pressure gas and the second interface 7 is sucked out of the gas, the first annular channel 19 is filled with positive pressure gas, and the second annular channel 20 is negative pressure, and the gas is sucked outwards, when the first interface 6 is sucked out of the gas and the second interface 7 is filled with positive pressure gas, the first annular channel 19 is negative pressure, and the second annular channel 20 is filled with positive pressure gas.

[0040] The air flow in the first annular channel 19 enters the first positioning hole 14 through the first working hole 21, the second positioning hole 24 and the support pipe 9, and the air flow in the second annular channel 20 enters the adjacent first positioning hole 14 through the second working hole 22, the second positioning hole 24 and the support pipe 9, so that the direction of the air flow between any adjacent first positioning holes 14 on the stabilizing ring 10 is opposite, the air flow in the first positioning hole 14 will be transmitted into the air nozzle 16, and the air flow will finally act on the inner wall of the cloth bag.

[0041] In some embodiments, the air flow directly enters the air nozzle 16 from the first positioning hole 14, the air nozzle 16 blows the cloth bag in the circumferential direction to make the cloth bag expand, and the adjacent air nozzle 16 provides suction force to pull the cloth bag to the center of the inner circle, so that the inner wall of the cloth bag protrudes outward uniformly in the circumferential direction, and the positions between the protrusions are concave inward, and with the change of the direction of the air flow in the air nozzle 16, the protrusions and the concave positions on the cloth bag change reversely, the protrusions become concave and the concave positions become protrusions, so that the cloth bag forms stable undulations in the circumferential direction, thereby stripping the dust on the cloth bag.

[0042] In some embodiments, when the model of the cloth bag changes, the size of the inner wall of the cloth bag changes, the air nozzle 16 is configured to be slidable on the extension tube 15, and the air nozzle 16 will move up and down under the action of the spring 18, so that the working radius of the air nozzle 16 changes.

[0043] It is to be noted that the terms such as first and second, etc. are used herein merely to differentiate one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] The above description of the application and its embodiments is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the application, without creative design, similar structure and embodiments of the technical solution can be designed, which shall belong to the protection scope of the application.

Claims

1. A forced-intervention dust collection device for a bag filter, comprising a fixing frame (1), characterized in that, Also includes: Multiple sealing rings (8) are set on the fixed frame (1). The sealing ring (8) has a first ring channel (19) inside and a second ring channel (20) inside the first ring channel (19). The first ring channel (19) and the second ring channel (20) alternately draw air and blow air. The stabilizing ring (10) is connected to the bottom of the sealing ring (8) through the support tube (9). Multiple sets of stabilizing rings (10) are arranged at intervals. Multiple sets of air nozzles (16) are provided on the side wall of the stabilizing ring (10). The adjacent air nozzles (16) are respectively connected to the first ring channel (19) and the second ring channel (20). The positive pressure airflow blows air onto the bag, causing the bag to expand locally. The negative pressure airflow fixes the bag, preventing the bag from expanding too much. The two gases acting on the surface of the bag at the same time cause the surface of the bag to fluctuate at high frequency, forming a vibration dust removal effect while avoiding excessive deformation and damage to the bag.

2. The forced-intervention dust collection device for baghouse dust collectors according to claim 1, characterized in that: The stabilizing ring (10) has multiple sets of extended tubes (15) on its side wall. The air nozzle (16) is slidably sleeved on the extended tube (15). The end of the air nozzle (16) is provided with a flange (17). A spring (18) is provided between the flange (17) and the side wall of the stabilizing ring (10).

3. The forced-intervention dust collection device for a bag filter according to claim 2, characterized in that: The first ring channel (19) is provided with multiple sets of first working holes (21), and the second ring channel (20) is provided with multiple sets of second working holes (22). The first working holes (21) and the second working holes (22) are spaced apart. The lower wall of the sealing ring (8) is provided with a lower binding ring (23). The lower binding ring (23) is provided with multiple sets of second positioning holes (24). The adjacent second positioning holes (24) are respectively connected to the first working holes (21) and the second working holes (22).

4. The forced-intervention dust collection device for a bag filter according to claim 3, characterized in that: The stabilizing ring (10) is provided with multiple sets of first positioning holes (14), the first positioning holes (14) are connected to the air nozzle (16), the support tube (9) connects the first positioning holes (14) and the second positioning holes (24), and the support tube (9) connects the first positioning holes (14) on the upper and lower adjacent stabilizing rings (10).

5. The forced-intervention dust collection device for a bag filter according to claim 1, characterized in that: The upper wall of the sealing ring (8) is provided with a third interface (11) and a fourth interface (12). The third interface (11) is connected to the first ring channel (19), and the fourth interface (12) is connected to the second ring channel (20).

6. The forced-intervention dust collection device for a bag filter according to claim 5, characterized in that: The fixed frame (1) is provided with multiple sets of longitudinal air pipes (3), the longitudinal air pipes (3) are provided with a first cavity (25), a second cavity (26) is provided on one side of the first cavity (25), the third interface (11) is connected to the first cavity (25), and the fourth interface (12) is connected to the second cavity (26).

7. The forced-intervention dust collection device for a bag filter according to claim 6, characterized in that: The longitudinal air tube (3) is provided with a first transverse air tube (4) and a second transverse air tube (5). The first transverse air tube (4) is connected to the first cavity (25), and the second transverse air tube (5) is connected to the second cavity (26).

8. The forced-intervention dust collection device for a bag filter according to claim 7, characterized in that: The first horizontal air tube (4) is provided with a first interface (6), and the second horizontal air tube (5) is provided with a second interface (7). The first interface (6) and the second interface (7) are connected to the air source for alternating suction.

9. The forced-intervention dust collection device for a bag filter according to claim 1, characterized in that: The sealing ring (8) has a sealing gasket (13) on its lower wall.

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