A rotatable bag dust removal assembly and bag dust collector

Abstract

The present invention relates to a rotatable bag dust removal assembly and a bag dust collector, wherein the bag dust removal assembly comprises: a flower plate with a plurality of through holes, a filter cloth bag connected to the flower plate and a reaction guide; the filter cloth bag is arranged one-to-one with the through holes of the flower plate, and the open end of the filter cloth bag is sealed and connected with the upper edge of the through hole; the reaction guide is installed on the upper side of the flower plate, and the reaction guide is arranged corresponding to the selected through hole; the reaction guide is used to guide the airflow passing through the through hole from bottom to top in a preset direction, and drive the flower plate to rotate based on the reaction force of the airflow. The present invention effectively solves the problem of non-uniform loss of the filter cloth bag by making the flower plate rotate slowly and continuously.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to a rotatable bag dust removal component and a bag dust collector. Background Art

[0002] With the development of society, people have higher and higher requirements for the quality of the atmospheric environment, so the emission requirements for production enterprises are becoming more and more stringent. In order to achieve standard emissions, enterprises often need to install a variety of environmental protection equipment to purify the dust or smoke they produce. Bag dust collectors are installed as the last check equipment by many enterprises due to their simple principle, reliable quality, high efficiency, and long-term stable operation, so they have been widely used.

[0003] However, there is also a problem with bag filters. If the pores of the bags are too coarse, the emission control effect cannot be achieved. If they are too fine, the dust or smoke flow resistance will increase, affecting the efficiency. The bags are also prone to clogging and damage, and need to be replaced constantly, so the maintenance cost is high. In particular, there are often hundreds of bags in a dust collector, and they are damaged at different times. In particular, due to the uneven distribution of the flow field, the bags in some positions are particularly prone to damage, which requires frequent shutdowns for inspection and replacement of bags, which increases the maintenance cost sharply.

[0004] There are three main methods to solve this problem in the prior art. One is to add a pretreatment process in front, such as passing through a cyclone dust collector before the dust or smoke enters the bag filter to remove relatively large particles. The second is to add a shaking device to shake off the particles attached to the surface of the bag in time through regular or irregular shaking. The third is to add a diversion device to make the dust or smoke flow through all the bags as evenly as possible, so that the damage of the bags is more uniform and can be replaced in batches, thereby reducing the frequency of bag replacement.

[0005] Although these existing technical measures have certain effects, their effects are very limited and it is difficult to completely solve the problem. For example, shaking measures often cannot be shaken off due to the adhesion and electrostatic adsorption between particles and bags. Another example is diversion. Because the flow field inside the dust collector is too complicated, and the continuous fluctuations in production conditions will cause changes in dust or flue gas flow, flow rate, pressure, and temperature, it is difficult to solve the problem of uneven flow field by adding some simple diversion devices.

[0006] Therefore, reducing the maintenance cost of bag dust collectors is still an issue worthy of further research and solution. Summary of the invention

[0007] The object of the present invention is to provide a rotatable bag dust removal assembly and a bag dust collector.

[0008] To achieve the above-mentioned purpose, the present invention provides a rotatable bag dust removal assembly, comprising: a flower plate with a plurality of through holes, a filter bag connected to the flower plate and a reaction guide;

[0009] The filter cloth bag is arranged in one-to-one correspondence with the through holes of the flower plate, and the opening end of the filter cloth bag is sealed and connected to the upper edge of the through hole;

[0010] The reaction guide is installed on the upper side of the flower plate, and the reaction guide is arranged corresponding to the selected through hole;

[0011] The reaction guide is used to guide the airflow passing through the through hole from bottom to top along a preset direction, and drive the flower plate to rotate based on the reaction force of the airflow.

[0012] According to one aspect of the present invention, on the flower plate, a through hole for mounting the reaction guide is spaced apart from the center of the flower plate.

[0013] According to one aspect of the present invention, the reaction guide is a hollow structure with two open ends, and one end thereof is connected to the through hole, and the other end is oriented in a vertical plane at an angle to the axial direction of the through hole, and the projection of the other end on the plane of the flower plate is oriented at an angle to the radial direction of the flower plate.

[0014] According to one aspect of the present invention, the end of the reaction guide member connected to the through hole is rotatably arranged.

[0015] According to one aspect of the present invention, the reaction guide member is a cover body with two open ends, and the two open ends of the cover body are oriented at an angle, or the reaction guide member is a curved tube body with two open ends, and the two open ends of the curved tube body are oriented at an angle.

[0016] According to one aspect of the present invention, it also includes: a rotation support and a guide support;

[0017] The rotating support and the guide support are arranged on the upper and lower sides of the flower plate respectively;

[0018] Along the circumference of the flower plate, a plurality of the rotation supports are arranged at equal intervals, and a plurality of the guide supports are arranged at equal intervals.

[0019] In order to achieve the above-mentioned invention object, the present invention provides a bag dust collector using the above-mentioned bag dust removal assembly, comprising: a bag dust removal assembly, a shell assembly;

[0020] The housing assembly comprises: a hollow body, an air inlet and an air outlet mounted on a side wall of the hollow body;

[0021] The bag dust removal assembly is rotatably mounted in the housing assembly;

[0022] In the vertical direction, the bag dust removal assembly is arranged between the air inlet and the air outlet;

[0023] The bag dust removal assembly comprises: a flower plate with a plurality of through holes, a filter bag connected to the flower plate and a reaction guide;

[0024] The filter cloth bag is arranged in one-to-one correspondence with the through holes of the flower plate, and the opening end of the filter cloth bag is sealed and connected to the upper edge of the through hole;

[0025] The reaction guide is installed on the upper side of the flower plate, and the reaction guide is arranged corresponding to the selected through hole;

[0026] The reaction guide is used to guide the airflow passing through the through hole from bottom to top in a preset direction, and drive the flower plate to rotate in the hollow body based on the reaction force of the airflow.

[0027] According to one aspect of the present invention, a sealing member is provided between the flower plate and the hollow body.

[0028] According to one aspect of the present invention, the inner side wall of the hollow body is provided with an annular support beam;

[0029] The rotating support of the bag dust removal assembly is respectively connected to the flower plate and the annular support beam;

[0030] The guide supports of the bag dust removal assembly are respectively connected to the flower plate and the inner side wall of the hollow body.

[0031] According to one aspect of the present invention, the hollow body comprises: an upper cylinder and a lower ash hopper connected to each other, an inspection cover plate, and a support assembly;

[0032] An observation hole and a detection hole are arranged on the side wall of the upper cylinder, and the observation hole is located above and / or below the flower plate, and the detection hole is located above and / or below the flower plate;

[0033] A transparent baffle is embedded in the observation hole;

[0034] A detection device is embedded in the detection hole;

[0035] A maintenance hole is provided on the top of the upper cylinder, and the inspection cover is connected to the maintenance hole in an openable and closable manner;

[0036] The maintenance hole is a long hole arranged along the radial direction of the upper cylinder, wherein the maintenance hole extends radially from the edge of the upper cylinder to the center and exceeds the center position of the upper cylinder;

[0037] The inspection cover is at least partially transparent;

[0038] The width of the maintenance hole is greater than the size of the reaction guide and the filter bag.

[0039] According to one scheme of the present invention, the present invention creatively uses a method of continuously and slowly rotating the flower plate together with the filter bag, which effectively solves the problem of uneven loss of the filter bag (such as blockage or breakage), and at the same time solves the problem of rotation power, sealing problem, operation observation and detection problem, and batch replacement and maintenance problem of the filter bag. It can be expected that the application of the present invention can significantly reduce the replacement frequency of the filter bag, thereby significantly reducing maintenance costs.

[0040] According to one solution of the present invention, the present invention does not need to open the entire dust collector during maintenance, and only needs to open the maintenance cover on the top to achieve batch replacement of internal damaged parts.

[0041] According to one solution of the present invention, the rotational power of the bag-type dust collector assembly of the present invention comes entirely from the impact of the reaction guide pieces with the airflow, so the power can be controlled by increasing or decreasing the number of reaction guide pieces, thereby controlling the rotation speed of the bag-type dust collector assembly.

[0042] According to one solution of the present invention, the entire design of the present invention is centered on the flower plate, and the problem of non-uniform loss of the filter bag is solved by making the flower plate rotate slowly with the filter bag, thereby reducing the frequency of filter bag replacement and thus reducing maintenance costs.

[0043] According to one scheme of the present invention, the present invention can stably and effectively adapt to the continuous production mode of enterprises such as steel plants, coking plants, and cement plants, and it can fully operate through unpowered operation until the filter bag is damaged and shut down for maintenance, which greatly reduces the maintenance difficulty of the entire device, and it can flexibly set its external dimensions according to the object of application so that it has different dust removal capabilities, and its adaptability and flexibility of use are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a perspective view schematically showing a bag dust removal assembly according to an embodiment of the present invention;

[0045] Figure 2 is a partial enlarged view schematically showing a bag dust removal assembly according to an embodiment of the present invention;

[0046] Figure 3 is a perspective view schematically showing a bag filter according to an embodiment of the present invention;

[0047] Figure 4 FIG. 1 is a cross-sectional view schematically showing a bag filter according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] When describing the embodiments of the present invention, the orientation or positional relationship expressed by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the relevant drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0050] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the embodiments of the present invention are not therefore limited to the following embodiments.

[0051] Combination Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, a rotatable bag dust removal assembly of the present invention comprises: a flower plate 11 having a plurality of through holes, a filter cloth bag 12 connected to the flower plate 11, and a reaction guide 13; in this embodiment, the flower plate 11 is a circular plate as a whole, and a plurality of through holes are arranged in a regular array thereon to facilitate the installation of the filter cloth bag 12; wherein the filter cloth bag 12 is arranged one-to-one with the through holes of the flower plate 11, and the open end of the filter cloth bag 12 is sealed and connected to the upper edge of the through hole, so that the sealed end of the filter cloth bag 12 is suspended below the flower plate 11. In this embodiment, the filter cloth bag 12 is provided with a steel wire skeleton to effectively ensure the stability of the overall structure of the filter cloth bag 12, so that its shape will not be greatly changed by the influence of airflow.

[0052] In this embodiment, the reaction guide 13 is installed on the upper side of the flower plate 11, and the reaction guide 13 is arranged corresponding to the selected through hole; wherein the reaction guide 13 is used to guide the airflow passing through the through hole from bottom to top along a preset direction, and drive the flower plate 11 to rotate based on the reaction force of the airflow.

[0053] Through the above arrangement, when the bag-type dust removal assembly of the present invention is performing dust removal operation, its upper side is subjected to the suction effect of the exhaust fan, while the flue gas to be purified is introduced from the lower side, and then under the filtering effect of the filter bag 12, there is an air pressure difference between the upper and lower sides of the bag-type dust removal group, so that the airflow can flow out from the through-hole position of the flower plate 11 through the filter bag 12, and then, through the reaction guide member 13 that can guide the direction of the airflow, on the one hand, the direction of the airflow can be changed, and on the other hand, according to the momentum theorem, the airflow flowing through is acted upon by the reaction guide member 13 to generate a reaction force acting on the reaction guide member 13, thereby, the reaction force can be amplified by arranging multiple reaction guide members 13 to realize the driving force that drives the entire bag-type dust removal assembly to rotate.

[0054] In addition, the present invention uses the reaction force exerted on the reaction guide member 13 to drive the entire bag dust removal assembly to rotate, and does not require the use of other drivers, so that the present invention has the advantages of simpler and more reliable structure and low cost.

[0055] Combination Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, on the flower plate 11 , a through hole for mounting the reaction guide member 13 is spaced apart from the center of the flower plate 11 .

[0056] Through the above-mentioned arrangement, the arrangement of the reaction guide 13 offset relative to the center of the flower plate 11 can conveniently realize that the reaction force has a driving force arm relative to the flower plate 11, so that the reaction guide 13 can be conveniently arranged to realize the distribution of different driving forces, thereby achieving flexible adjustment of the rotation speed of the bag dust removal assembly.

[0057] Combination Figure 1 and Figure 2As shown, according to an embodiment of the present invention, the reaction guide 13 is a hollow structure with two open ends, and one end of the reaction guide 13 is connected to the through hole, and the direction of the other end is set at an angle with the axial direction of the through hole in the vertical plane, and the projection of the direction of the other end on the plane of the flower plate 11 is set at an angle with the radial direction of the flower plate 11; wherein, one open end of the reaction guide 13 can be installed on the through hole in a docking manner, or surrounded in an encircling manner, and the connection position between the reaction guide 13 and the through hole needs to maintain sufficient sealing to avoid leakage when the airflow passes, so as to ensure that the reaction guide 13 can fully receive the reaction force. In this embodiment, the angle between the two open ends of the reaction guide 13 is less than 120°, thereby, an angle can be formed between the outlet direction of the airflow and the axial direction of the through hole, and then the reaction guide 13 can have a sufficient area to generate a corresponding reaction force, so as to achieve a corresponding driving effect.

[0058] Preferably, the angle between the two open ends of the reaction guide 13 is between 60° and 120°. In this embodiment, the angle between the two open ends of the reaction guide 13 can be set at 90°. In this embodiment, in order to facilitate the adjustment of the reaction force received by the reaction guide 13, the angle between the two open ends of the reaction guide 13 can be adjusted so that the outlet direction of the airflow guided by the reaction guide 13 can be flexibly adjusted in the vertical direction so that the size of the reaction force received by the reaction guide 13 can be controlled.

[0059] Through the above arrangement, the reaction guide member 13 can not only guide the airflow, but also fully ensure that the outlet position has a sufficient area to ensure the flow efficiency of the airflow during the dust removal process, which is more beneficial to ensuring the overall filtering effect.

[0060] Combination Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the end of the reaction guide 13 connected to the through hole is rotatable. In this embodiment, the end of the reaction guide 13 connected to the through hole can be rotated by relative sliding, so that a sealing structure can be conveniently provided at the connection position to ensure the sealing of the rotation position.

[0061] Through the above-mentioned arrangement, by setting one end of the reaction guide 13 connected to the through hole in a rotatable manner, the outlet direction of the reaction guide 13 can be flexibly adjusted in a direction parallel to the flower plate 11, thereby realizing flexible adjustment of the airflow outlet direction, thereby realizing the relative position relationship between the reaction force exerted on the reaction guide 13 and the force arm acting on the flower plate 11, so as to achieve the adjustment of the driving force of the entire bag-type dust removal assembly (wherein, the projection of the direction of the outlet end of the reaction guide 13 on the plane of the flower plate 11 is perpendicular to the radial direction of the flower plate 11, that is, when the direction of the outlet end is in the tangential direction of the rotation of the flower plate 11, the driving force is the largest), thereby facilitating flexible adjustment of the rotation speed of the entire bag-type dust removal assembly.

[0062] In this embodiment, a limiter may be further provided at the position where the reaction guide member 13 is connected to the through hole, so as to limit the reaction guide member 13 after the position is adjusted, so as to keep the outlet direction thereof constant.

[0063] In this embodiment, when the reaction guide 13 is rotatably connected to the through hole, a control member can be further provided on the plurality of reaction guides 13 to achieve the orientation adjustment of the plurality of reaction guides 13 connected by the control member within a preset range; specifically, since the flower plate 11 is a circular plate as a whole, and the through holes arranged thereon are in a circular array, reaction guides 13 can be respectively provided on the through holes in the circular array, so that the reaction guides 13 are also arranged in a circular array, and thus the reaction guides 13 arranged in a circular array can generate a driving force to drive the bag dust removal assembly to rotate by adjusting the outlet direction of the reaction guide 13. Therefore, the control member can be provided as a rod, and the number of the reaction guides 13 connected can be controlled by changing the length and shape of the rod, so as to achieve synchronous adjustment of the connected reaction guides 13. In the present embodiment, in order to further facilitate the rotation of the reaction guide 13 and the connection with the control member, a driving rocker with a preset length may be installed on the side wall of the reaction guide 13 to facilitate the rotation of the reaction guide 13. For example, a rocker may be connected to the top or side of the reaction guide 13, one end of the rocker is fixedly connected to the reaction guide 13, and the other end is rotatably connected to the control member, wherein the extension direction of the rocker may be determined according to the direction of the connected control member. If the control member connects a plurality of adjacent reaction guide members 13 in the circumferential direction of the flower plate 11, the rocker is selected to be extended radially along the flower plate 11 so that the plurality of reaction guide members 13 in the circumferential direction of the flower plate 11 present a synchronous adjustment effect; if the control member connects a plurality of adjacent reaction guide members 13 in the radial direction of the flower plate 11, the rocker is selected to be extended along the tangential direction of the circumferential direction of the flower plate 11 so that the plurality of reaction guide members 13 in the radial direction of the flower plate 11 present a synchronous adjustment effect. Of course, in other embodiments, different control element settings can be selected in the reaction guide members 13 in different areas, thereby achieving the effect of synchronous adjustment of the reaction guide members 13 by area, so as to simplify the adjustment process and achieve flexible and reliable rotation adjustment of the entire bag dust removal assembly.

[0064] Through the above-mentioned setting method, the control member is used to realize the synchronous adjustment of the connected reaction guide member 13, which can effectively solve the problem that the single reaction guide member 13 is subjected to small force, and it is difficult to achieve the effect of quickly adjusting the rotation speed of the bag dust removal assembly, which greatly affects the debugging and installation efficiency of the bag dust removal assembly. In addition, it is difficult to achieve fast reproduction of different rotation speeds by adjusting the reaction guide member 13 alone. Therefore, by uniformly adjusting multiple reaction guide members 13, the force of some areas can be selectively amplified to effectively accelerate the adjustment efficiency.

[0065] In addition, the use of a control member can flexibly realize synchronous connection of multiple reaction guide members 13 with smaller forces to achieve force amplification, while the reaction guide members 13 with larger forces can be adjusted independently, thereby making the rotation speed control of the present invention easier to achieve.

[0066] Combination Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, the reaction guide 13 is a cover body with two open ends, and the two open ends of the cover body are oriented at an angle, or the reaction guide 13 is a curved tube body with two open ends, and the two open ends of the curved tube body are oriented at an angle. In this embodiment, if the reaction guide 13 is a cover body, the reaction guide 13 can be implemented by a spherical surface, for example, the reaction guide 13 is set as a 1 / 4 spherical surface, and the radius of the spherical surface is matched with the radius of the through hole, so that the reaction guide 13 can be connected to the through hole, so that the curved surface of the entire reaction guide 13 can guide the airflow. Of course, the reaction guide 13 can also be set as a hollow cover body composed of a curved surface and a flat surface. For example, the reaction guide 13 includes: an arc plate and flat plates arranged on both sides of the arc plate in the axial direction. The flat plates and the arc plates form a hollow structure, so that by shielding the through hole, the airflow can be guided along the arc plate to the direction intersecting the axial direction of the through hole. Among them, the guiding effect of the airflow is mainly achieved by the arc plate, so that the reaction force is relatively concentrated. Of course, the reaction guide 13 can also be set as a combination of an arc plate and a flat plate, and the arc plate is connected to the through hole at one end in the axial direction, and the flat plate is installed in a manner opposite to the through hole. As a result, the flat plate opposite to the through hole has a greater obstruction effect on the airflow, and the control of the reaction force can be achieved by arranging its relative height and angle. In addition, the reaction guide 13 can also be set as other cover structures, and the curved surface and flat surface can be set according to the setting to optimize the airflow guiding process to achieve the effect of fully receiving the reaction force.

[0067] Combination Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, it further includes: a rotating support 14 and a guiding support 15; wherein the rotating support 14 and the guiding support 15 are respectively arranged on the upper and lower sides of the flower plate 11; in this embodiment, along the circumference of the flower plate 11, a plurality of rotating supports 14 are arranged at equal intervals, and a plurality of guiding supports 15 are arranged at equal intervals. In this embodiment, the rotating support 14 and the guiding support 15 can be installed on the flower plate 11, or the rotating support 14 and the guiding support 15 can be installed on other shells for supporting the flower plate 11.

[0068] In this embodiment, the rotating support 14 includes: a vertical connecting shaft 141, a roller swivel seat 142 connected to the vertical connecting shaft 141, and a roller 143 rotatably connected to the roller swivel seat 142; wherein, the vertical connecting shaft 141 and the roller swivel seat 142 are connected by a rolling bearing with a sealing ring, and the roller 143 and the roller swivel seat 142 are connected by a rolling bearing with a sealing ring.

[0069] In this embodiment, the guide support 15 includes: a guide wheel 151 and a guide mounting seat 152 connected to the guide wheel 151; wherein the guide wheel 151 and the guide mounting seat 152 are connected by a rolling bearing with a sealing ring.

[0070] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to an embodiment of the present invention, the present invention provides a bag dust collector using the aforementioned bag dust removal assembly, comprising: bag dust removal assembly a, shell assembly b; in this embodiment, shell assembly b comprises: hollow body b1, air inlet b2 and air outlet b3 installed on the side wall of the hollow body b1; bag dust removal assembly a is rotatably installed in shell assembly b. And in the vertical direction, bag dust removal assembly a is arranged between air inlet b2 and air outlet b3. In this embodiment, the bag dust removal assembly a includes: a flower plate 11 with multiple through holes, a filter bag 12 connected to the flower plate 11, and a reaction guide 13; the filter bag 12 is arranged one-to-one with the through holes of the flower plate 11, and the open end of the filter bag 12 is sealed and connected to the upper edge of the through hole; the reaction guide 13 is installed on the upper side of the flower plate 11, and the reaction guide 13 is arranged corresponding to the selected through hole; the reaction guide 13 is used to guide the airflow passing through the through hole from bottom to top in a preset direction, and drive the flower plate 11 to rotate in the hollow body b1 based on the reaction force of the airflow. Among them, the specific structural setting of the bag dust removal assembly a is consistent with the above setting, and will not be repeated here.

[0071] like Figure 2 As shown, according to one embodiment of the present invention, a seal c is provided between the flower plate 11 and the hollow body b1. The seal c can be a sticky foam seal ring, which is installed on the side wall of the hollow body b1 by sticking, so as to achieve a sealing effect at the position between the flower plate 11 and the hollow body b1, so as to ensure the sealing of the flower plate 11 during the rotation process. In addition, in order to ensure the airtightness between the flower plate 11 and the hollow body b1, the seal c can be optionally provided at the gap position existing at the upper and lower positions of the flower plate 11 to achieve the airtightness of the upper and lower sides thereof.

[0072] Combination Figure 2 and Figure 4As shown, according to one embodiment of the present invention, the inner wall of the hollow body b1 is provided with an annular support beam b11; wherein the rotating support 14 of the bag-type dust removal assembly a is respectively connected to the flower plate 11 and the annular support beam b11; and the guide support 15 of the bag-type dust removal assembly a is respectively connected to the flower plate 11 and the inner wall of the hollow body b1.

[0073] In this embodiment, if the rotating support 14 and the guide support 15 are installed on the flower plate 11, the vertical connecting shaft 141 of the rotating support 14 can be fixedly connected with the flower plate 11 by threading, thereby, the roller 143 can be carried on the annular support beam b11, and the friction force during the rotation of the flower plate 11 can be reduced by the rolling of the roller 143; wherein, the vertical connecting shaft 141 and the roller rotating seat 142 are rotationally connected, thereby, adaptive adjustment can be achieved during the rotation process to ensure smooth rotation. In addition, the guide mounting seat 152 in the guide support 15 can be fixedly installed on the flower plate 11, and the guide wheel 151 at this time contacts the side wall of the hollow body b1, thereby achieving the guidance of the flower plate 11 during the rotation process and the stable restriction of the flower plate position, so as to control the relative position between the edge of the flower plate 11 and the wall surface of the hollow body b1. In this embodiment, at least three rotating supports 14 are provided in the circumference of the flower plate 11 (preferably, 6 to 12 are provided), and at least three guide supports 15 are provided (preferably, 6 to 12 are provided), thereby achieving accurate and reliable positioning of the flower plate 11.

[0074] In this embodiment, the roller 143 and the guide wheel 151 can be configured as wear-resistant rollers, and the annular support beam b11 can be configured as a wear-resistant beam to achieve long-term reliable operation.

[0075] In this embodiment, the rotation speed of the bag dust removal component a in the housing component b is controlled to be 1 to 10 revolutions per hour to avoid excessive energy consumption, thereby achieving long-term stable operation.

[0076] Combination Figure 3 and Figure 4 As shown, according to one embodiment of the present invention, the hollow main body b1 includes: an upper cylinder b1a and a lower ash hopper b1b that are connected to each other, an inspection cover b1c, and a support assembly b1d; wherein the support assembly b1d is fixedly connected to the outside of the hollow main body b1, and it can be set to multiple legs to achieve stable support for the bag dust collector.

[0077] In this embodiment, an observation hole b1a1 and a detection hole b1a2 are provided on the side wall of the upper cylinder b1a, and the observation hole b1a1 is located above and / or below the flower plate 11, and the detection hole b1a2 is located above and / or below the flower plate 11; wherein, a transparent baffle is embedded in the observation hole b1a1; and a detection device (for example, an instrument or sensor such as an image sensor, a barometer or a dust concentration detector) is embedded in the detection hole b1a2 so as to more comprehensively grasp the working status of the bag filter, and even remotely monitor it online.

[0078] In this embodiment, a maintenance hole b1a3 is provided at the top of the upper cylinder b1a, and the inspection cover b1c is connected to the maintenance hole b1a3 in an openable and closable manner; wherein the maintenance hole b1a3 is a long hole provided along the radial direction of the upper cylinder b1a, wherein the maintenance hole b1a3 extends radially from the edge of the upper cylinder b1a to the center and exceeds the center position of the upper cylinder b1a; wherein the maintenance hole b1a3 can be provided as an oblong hole or a rectangular hole, and its width is greater than the size of the reaction guide 13 and the filter bag 12. Therefore, since the bag dust removal assembly a is rotatable, flexible maintenance of various positions on the bag dust removal assembly a can be achieved through the provided long strip maintenance hole b1a3.

[0079] In this embodiment, the inspection cover b1c is at least partially transparent, thereby making it easy to observe the interior.

[0080] To further illustrate the present invention, its working principle is further described.

[0081] The air outlet b3 of the bag filter is connected to a large dust removal fan, and the air inlet b2 is connected to an external air source. The connected air source can be the dust-containing gas from a cement plant, the boiler flue gas from a power plant, or the blast furnace flue gas from a steel plant or a coking plant. These gases are pre-treated with a cyclone dust collector to remove larger particles and then connected to the air inlet b2.

[0082] Under the continuous suction of the large dust removal fan, negative pressure is formed above the flower plate 11, and the dust gas or smoke below the flower plate 11 will enter the top of the flower plate 11 after being filtered and purified by the filter bag 12 under the action of the pressure difference, and then be sucked away by the large dust removal fan from the air outlet b3. Among them, the particles blocked by the filter bag 12 fall down into the lower ash hopper b1b, and are cleared away by regularly opening the bottom cleaning port. Among them, the bag dust removal component a selects the type, mesh number, and specification of the filter bag 12 according to the emission requirements, and then determines the number of filter bags 12 according to the air volume. The size and layout of the flower plate are determined according to the number of filter bags 12, so that the size of the entire bag dust collector is determined.

[0083] Furthermore, during the gas filtration process, the airflow from bottom to top is obstructed by the reaction guide 13 and its flow direction is changed, so that the reaction guide 13 receives the corresponding airflow impact. At this point, the driving force can be controlled by increasing or decreasing the number of reaction guides 13, thereby controlling the rotation speed of the entire bag dust removal assembly a; in order not to consume too much energy, a slow rotation of about 1-10 revolutions per hour is generally appropriate.

[0084] The above contents are merely examples of specific solutions of the present invention. For devices and structures not described in detail therein, it should be understood that they can be implemented by adopting general devices and general methods available in the art.

[0085] The above is only one solution of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotatable bag dust removal assembly, characterized in that: include: A flower plate (11) having a plurality of through holes, a filter bag (12) and a reaction guide member (13) connected to the flower plate (11); The filter cloth bag (12) is arranged in one-to-one correspondence with the through hole of the flower plate (11), and the opening end of the filter cloth bag (12) is sealed and connected to the upper edge of the through hole; The reaction guide member (13) is installed on the upper side of the flower plate (11), and the reaction guide member (13) is arranged corresponding to the selected through hole; The reaction guide member (13) is used to guide the airflow passing through the through hole from bottom to top in a preset direction, and to drive the flower plate (11) to rotate based on the reaction force of the airflow.

2. The bag dust removal assembly according to claim 1, characterized in that: On the flower plate (11), a through hole for mounting the reaction guide member (13) is spaced apart from the center of the flower plate (11).

3. The bag dust removal assembly according to claim 2, characterized in that: The reaction guide (13) is a hollow structure with two open ends, one end of which is connected to the through hole, the other end of which is oriented in a vertical plane at an angle to the axial direction of the through hole, and the projection of the other end of which is oriented on the plane of the flower plate (11) at an angle to the radial direction of the flower plate (11).

4. The bag dust removal assembly according to claim 3, characterized in that: The end of the reaction guide member (13) connected to the through hole is rotatably arranged.

5. The bag dust removal assembly according to claim 4, characterized in that: The reaction flow guide (13) is a cover body having two open ends, and the two open ends of the cover body are oriented at an angle, or the reaction flow guide (13) is a curved tube body having two open ends, and the two open ends of the curved tube body are oriented at an angle.

6. The bag dust removal assembly according to claim 5, characterized in that: Also includes: A rotation support (14) and a guide support (15); The rotating support (14) and the guide support (15) are respectively arranged on the upper and lower sides of the flower plate (11); Along the circumference of the flower plate (11), a plurality of the rotation supports (14) are arranged at equal intervals, and a plurality of the guide supports (15) are arranged at equal intervals.

7. A bag dust collector using the bag dust removal assembly according to any one of claims 1 to 6, characterized in that: include: Bag filter assembly (a), housing assembly (b); The housing component (b) comprises: a hollow body (b1), an air inlet (b2) and an air outlet (b3) mounted on the side wall of the hollow body (b1); The bag dust removal component (a) is rotatably mounted in the housing component (b); In the vertical direction, the bag dust removal assembly (a) is arranged between the air inlet (b2) and the air outlet (b3); The bag dust removal assembly (a) comprises: a flower plate (11) having a plurality of through holes, a filter bag (12) connected to the flower plate (11), and a reaction guide member (13); The filter cloth bag (12) is arranged in one-to-one correspondence with the through hole of the flower plate (11), and the opening end of the filter cloth bag (12) is sealed and connected to the upper edge of the through hole; The reaction guide member (13) is installed on the upper side of the flower plate (11), and the reaction guide member (13) is arranged corresponding to the selected through hole; The reaction guide member (13) is used to guide the airflow passing through the through hole from bottom to top in a preset direction, and to drive the flower plate (11) to rotate in the hollow body (b1) based on the reaction force of the airflow.

8. The bag filter according to claim 7, characterized in that: A sealing member (c) is provided between the flower plate (11) and the hollow body (b1).

9. The bag filter according to claim 8, characterized in that: The inner side wall of the hollow body (b1) is provided with an annular support beam (b11); The rotating support (14) of the bag dust removal assembly (a) is respectively connected to the flower plate (11) and the annular support beam (b11); The guide support (15) of the bag dust removal assembly (a) is respectively connected to the flower plate (11) and the inner side wall of the hollow body (b1).

10. The bag filter according to claim 9, characterized in that: The hollow body (b1) comprises: an upper cylinder (b1a) and a lower ash hopper (b1b) connected to each other, an inspection cover (b1c), and a support assembly (b1d); An observation hole (b1a1) and a detection hole (b1a2) are provided on the side wall of the upper cylinder (b1a), and the observation hole (b1a1) is located above and / or below the flower plate (11), and the detection hole (b1a2) is located above and / or below the flower plate (11); A transparent baffle is embedded in the observation hole (b1a1); A detection device is embedded in the detection hole (b1a2); A maintenance hole (b1a3) is provided on the top of the upper cylinder (b1a), and the inspection cover (b1c) is connected to the maintenance hole (b1a3) in an openable and closable manner; The maintenance hole (b1a3) is a long hole arranged along the radial direction of the upper cylinder (b1a), wherein the maintenance hole (b1a3) extends radially from the edge of the upper cylinder (b1a) to the center and exceeds the center position of the upper cylinder (b1a); The inspection cover (b1c) is at least partially transparent; The width of the maintenance hole (b1a3) is greater than the size of the reaction guide member (13) and the filter bag (12).

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