Rotatable ash removal device

Abstract

The utility model discloses a rotatable ash removal device which comprises a dust remover and an ash storage bin, the dust remover is used for filtering the introduced dust-containing flue gas and discharging filtered clean flue gas; and the ash storage bin is connected with the dust remover and is used for storing dust in the flue gas collected by the dust remover. The dust remover can be used for efficiently filtering the introduced dust-containing flue gas, effectively separating dust particles in the flue gas, ensuring that the discharged flue gas is the filtered clean flue gas, and collecting the dust captured on the surface of the filter material while efficiently removing the dust, thereby not only being beneficial to reducing the environmental pollution, but also being beneficial to reducing the environmental pollution. And the fluctuation of the running resistance in the dust removal process of the dust remover is reduced. And the dust storage bin is tightly connected with the dust remover, so that the collected dust can be safely and effectively stored, secondary flying and leakage of the dust are avoided, and potential hazards to the working environment and personnel are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal technology, specifically relating to a rotatable dust removal device. Background Technology

[0002] Filter-type dust collectors, with their high dust removal efficiency and low dust emissions, have been widely used in many fields, including but not limited to the steel, cement, power, and environmental protection industries. The core of this type of dust collector lies in its filter media, which is responsible for capturing and retaining dust particles in the flue gas, thereby achieving the purpose of purifying the emitted gas.

[0003] In practical applications, the selection of dust collector filter media is influenced by various factors, including flue gas temperature, sulfur content, ammonia content, and moisture content. Depending on different operating conditions, different materials and processing techniques are required for filter media, such as polyphenylene sulfide (PPS), polyimide (PI), polytetrafluoroethylene (PTFE), stainless steel, intermetallic compounds, and ceramics. These filter media are typically cleaned by horizontal or rotary jetting with low-pressure air or nitrogen. Low-pressure air or nitrogen is injected from the top of the filter media into its interior to remove dust trapped on the surface, ensuring the dust collector can operate continuously, efficiently, and with low resistance.

[0004] However, traditional dust removal technologies are not ideal when dealing with high-humidity dust, highly viscous dust, fine dust, and especially nano-sized dust. After prolonged operation, a dust layer gradually accumulates on the surface of the filter media, leading to a decrease in the air permeability of the filter media and an increase in the operating resistance loss of the dust collector. When the operating resistance loss of the dust collector increases to a certain extent or the dust layer on the filter media surface accumulates to a certain thickness (such as the operating resistance being much higher than the design value), the dust collector's ability to filter flue gas decreases excessively, the fan experiences surge or overload, and the dust collector will have to be shut down, seriously affecting normal production and environmental hygiene. Utility Model Content

[0005] In view of this, the main objective of this utility model is to provide a rotatable dust removal device.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] This utility model provides a rotatable dust removal device, including a dust collector and a dust storage bin;

[0008] The dust collector is used to filter the introduced dust-laden flue gas and discharge the filtered clean flue gas.

[0009] The ash storage bin is connected to the dust collector and is used to store the dust collected by the dust collector from the flue gas.

[0010] Preferably, the dust collector includes a cylinder, filter media, and a dust removal mechanism;

[0011] Several sets of filter media are arranged on the upper side of the cylinder;

[0012] The dust removal mechanism is located circumferentially in each group of filter media.

[0013] Preferably, the dust removal mechanism includes a suction pipe, a dust brush, a movable dust brush drive mechanism, and a movable dust transmission mechanism;

[0014] The suction pipe is connected to the moving dust drive mechanism via a moving dust transmission mechanism, which is used to drive the suction pipe to rotate clockwise or counterclockwise along the circumference of the filter material.

[0015] The dust brush is located on the side of the suction pipe near the filter material.

[0016] Preferably, the suction pipe is located on the inner or outer side of the filter material in the circumferential direction.

[0017] Preferably, the suction pipe is connected to the ash storage bin via a dust pipe.

[0018] Preferably, the mobile dust transmission mechanism includes a rotating shaft, a rotating shaft track, a rotating dust chamber, and a fixed dust chamber. One end of the rotating shaft is connected to the rotating dust chamber, and the other end passes through the suction pipe and is connected to the rotating shaft track. The rotating shaft track is set on the perforated surface of the cylinder. The rotating dust chamber is connected to the fixed dust chamber. The inner cavity of the rotating dust chamber is connected to the lower side of the suction pipe. The fixed dust chamber is installed at the lower part of the filter material.

[0019] Preferably, the dust brush base includes a slide, a compression spring, and a dust brush holder; the slide is located on both sides of the suction pipe opening, and a compression spring is installed in each slide, with one end of each compression spring connected to the dust brush via the dust brush holder.

[0020] Preferably, the brush heads of the two dust brushes on both sides of the dust suction pipe opening are spaced apart along the surface dust layer of the filter material.

[0021] Preferably, the dust collector includes a dust duct; the dust duct is disposed on the lower side of the filter material;

[0022] The dust pipeline includes a dust conveying steel pipe and a dust conveying steel pipe. One end of the dust conveying steel pipe is connected to the opening of the fixed dust hopper, and the other end is connected to the dust conveying steel pipe. One end of the dust conveying steel pipe can be connected to multiple dust conveying steel pipes, and the other end is connected to devices such as air pumps and fans to generate negative pressure.

[0023] Preferably, the dust collector includes a cleaning steel pipe; the cleaning steel pipe is disposed on the lower side of each group of filter media; the cleaning steel pipe is connected to the ash conveying steel pipe, and the other end is used to introduce low-pressure air, low-pressure nitrogen or other gases required by the process, to clean the blockages in the dust pipe, fixed dust bin, rotating dust bin, suction pipe and filter media.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This invention enables efficient filtration of introduced dust-laden flue gas through a dust collector, effectively separating dust particles from the flue gas and efficiently removing and collecting the dust captured on the filter material surface. This not only helps reduce environmental pollution but also helps reduce fluctuations in the operating resistance of the dust collector during the dust removal process.

[0026] Furthermore, the close connection between the ash storage silo and the dust collector ensures that the collected dust can be stored safely and effectively, preventing secondary dust dispersion and leakage, and reducing potential hazards to the working environment and personnel. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this invention, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 This utility model provides a schematic diagram of a rotatable dust removal device with an external filter.

[0029] Figure 2 for Figure 1 Cross-sectional view of the filter media and suction pipe;

[0030] Figure 3 This utility model provides a schematic diagram of a rotatable dust removal device with an internal filter structure.

[0031] Figure 4 for Figure 3 Cross-sectional view of the filter media and suction pipe;

[0032] Figure 5 This invention provides a schematic diagram of the structure of a dust brush in a rotatable dust removal device according to an embodiment of the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0036] This utility model embodiment provides a rotatable dust removal device, such as Figure 1-5 As shown, it includes a dust collector 1 and an ash storage bin;

[0037] The dust collector 1 is used to filter the introduced dust-laden flue gas and discharge the filtered clean flue gas.

[0038] The ash storage bin is connected to the dust collector 1 and is used to store the dust in the flue gas collected by the dust collector 1.

[0039] This invention enables the dust collector 1 to efficiently filter the introduced dust-laden flue gas, effectively separate the dust particles in the flue gas, and efficiently remove and collect the dust captured on the surface of the filter material. This not only helps to reduce environmental pollution, but also helps to reduce the fluctuation of operating resistance during the dust removal process of the dust collector.

[0040] Furthermore, the close connection between the ash storage silo and the dust collector 1 ensures that the collected dust can be stored safely and effectively, avoiding secondary dust dispersion and leakage, and reducing potential hazards to the working environment and personnel.

[0041] The dust collector 1 includes a cylinder 11, filter media 12, and a dust removal mechanism 13; several sets of filter media 12 are arranged on the upper side inside the cylinder 11; the dust removal mechanism 13 is arranged in the circumferential direction of each set of filter media 12.

[0042] The filter material 12 is used to filter dust and can be either a flexible material or a rigid material.

[0043] With the dust removal mechanism 13, the dust collector 1 can perform a dust removal process while working continuously, so as to remove the dust accumulated on the filter material in time, maintain its filtration efficiency, and extend its service life.

[0044] The dust removal mechanism 13 includes a suction pipe 131, a dust brush 132, a moving dust brush drive mechanism 133, and a moving dust transmission mechanism 134.

[0045] The suction pipe 131 is connected to the moving dust brush drive mechanism 133 through the moving dust transmission mechanism 134, and is used to drive the suction pipe 131 to rotate clockwise or counterclockwise along the circumference of the filter material 12.

[0046] The dust brush 132 is located on the side of the suction pipe 131 near the filter material 12.

[0047] The suction pipe 131 is made of round or square steel pipe. Along its length, it is processed into multiple rectangular holes of different lengths and widths according to the distance from the ash storage bin and the airflow of the dust, so as to ensure that the dust removed by the filter material from bottom to top can be quickly sucked into the inner cavity of the suction pipe 131 and transported to the ash storage bin.

[0048] For example, the mobile dust transmission mechanism 134 includes a rotating shaft 1341, a rotating shaft track 1342, a rotating dust chamber 1343, and a fixed dust chamber 1344. One end of the rotating shaft 1341 is connected to the rotating dust chamber 1343, and the other end passes through the suction pipe 131 and is connected to the rotating shaft track 1342. The rotating shaft track 1342 is set on the perforated surface of the cylinder 11. The rotating dust chamber 1343 is connected to the fixed dust chamber 1344. The inner cavity of the rotating dust chamber 1343 is connected to the lower side of the suction pipe 131. The fixed dust chamber 1344 is installed at the lower part of the filter material 12.

[0049] The rotating shaft track 1342 adopts a groove-shaped structure and is fixed on the tube sheet of the dust collector 1, serving as the upper limit device of the rotating shaft 1341.

[0050] The rotating dust chamber 1343 adopts a hollow cylindrical structure with an opening on the cylindrical surface. The opening shape can be circular or polygonal, so that the rotating dust chamber 1343 can be connected to the fixed dust chamber 1344. The 1343 is installed on the fixed dust chamber 1344. The dust sucked in by the suction pipe 131 enters the inner cavity of the 1343 from the bottom of the 131, and then enters the fixed dust chamber 1344 through the opening.

[0051] The fixed dust chamber 1344 is a hollow cylindrical structure or a hollow cuboid structure. The upper and lower sides of the fixed dust chamber 1344 have circular openings along the axis, and the opening size is similar to that of the rotating dust chamber 1343. Guide rails and seals are provided around the circular openings on the upper and lower sides. The rotating dust chamber 1343 is installed at the opening. The rotating dust chamber 1343 and the suction pipe 131 rotate along the guide rails. The side opening of the fixed dust chamber 1344 is circular or square in shape. Dust is sucked into the dust pipe through the opening.

[0052] The mobile dust brush drive mechanism 133 comprises a variable frequency motor, a gearbox, a short transmission shaft, a coupling, a mechanism bracket, a ratchet 1331, and a pawl 1332.

[0053] The ratchet 1331 is mounted through the short drive shaft, and the ratchet 1331 rotates while the short drive shaft rotates.

[0054] The pawl 1332 is a solid bullet-shaped structure, fixed to the lower side of the rotating dust chamber 1343, and arranged circumferentially along the axis of the rotating dust chamber 1343. The number of pawls matches the number of ratchet 1331. When the ratchet 1331 rotates, it drives the pawl 1332 to rotate. The rotation of the pawl 1332 drives the rotating dust chamber 1343 to rotate. The rotation of the rotating dust chamber 1343 drives the suction pipe 131 and the dust brush 132 to rotate.

[0055] For example, such as Figure 1 , 2 As shown, the suction pipe 131 is located on the outer side of the filter material 12 in the circumferential direction, that is, the external filter type. The suction pipe 131 drives the dust brush 132 to rotate along the outer circumference of the filter material 12. During the rotation, the dust layer on the surface of the filter material 12 is removed. Then the dust is sucked away by the suction pipe 131 through the opening. The dust is sucked into the rotating dust chamber 1343 from the lower side of the suction pipe 131. The dust is sucked into the fixed dust chamber 1344 through the side opening of the rotating dust chamber 1343. The dust is further sucked into the dust pipe through the side opening of the fixed dust chamber 1344. The dust pipe leads to the ash storage chamber, so the dust is stored in the ash storage chamber.

[0056] For example, such as Figure 3 , 4 As shown, the suction pipe 131 is located on the inner side of the filter material 12 in the circumference direction, which is an internal filter type. The dust brush 132 is driven to rotate along the inner circumference of the filter material 12 by the suction pipe 131. During the rotation, the dust layer on the surface of the filter material 12 is removed. Then the dust is sucked away by the suction pipe 131 through the opening and stored in the ash storage bin.

[0057] Of course, in order for the suction pipe 131 to generate suction, an air pump, a fan or other device is installed on the ash storage bin or on the pipeline between the suction pipe 131 and the ash storage bin to generate negative pressure.

[0058] The dust brush 132 is mounted on the side of the suction pipe 131 near the filter material 12 via a dust brush base 1321.

[0059] The dust brush base 1321 includes a slide rail 13211, a compression spring 13212, and a dust brush holder. The slide rail 13211 is located on both sides of the opening of the suction pipe 131. Each slide rail 13211 is equipped with a compression spring 13212. One end of each compression spring 13212 is connected to the dust brush 132 through the dust brush holder.

[0060] The dust brush holder adopts a groove-shaped structure to securely hold the dust brush 132.

[0061] The slide 13211 is designed to ensure that the dust brush 132 and the dust brush holder retract perpendicular to the dust layer of the filter material, so that the dust brush 132 can effectively fit against the surface of the filter material 12 and improve the dust removal effect.

[0062] The compression spring 13212 is a helical spring, and the spring material can be either spring steel or stainless steel. The spring stiffness and compression amount are selected according to the filter material and dust characteristics.

[0063] like Figure 5 As shown, the brush heads of the two dust brushes 132 on both sides of the opening of the suction pipe 131 are arranged at intervals along the surface dust layer of the filter material 12.

[0064] Two dust brushes 132 are installed in pairs at the same height, along the circumference of the filter media. When one dust brush 132 is equipped with a brush head to clean the area, the other dust brush 132 does not have a fully equipped brush head in that area, but leaves a rectangular through hole. When one dust brush 132 does not have a brush head but leaves a rectangular through hole, the other dust brush 132 is equipped with a brush head. This arrangement of two dust brushes 132 is to efficiently clean the dust layer on the surface of the filter media 12, while also allowing the dust cleaned by the dust brushes to be quickly sucked into the suction pipe 131 through the reserved through hole. The size of the through hole can also be used to adjust the dust-to-air ratio of the pneumatic dust conveying system.

[0065] Furthermore, the dust collector 1 includes a dust duct 14; the dust duct 14 is disposed on the lower side of the filter material 12.

[0066] The dust duct 14 includes a dust conveying steel pipe 141 and a dust conveying steel pipe 142. One end of the dust conveying steel pipe 141 is connected to the opening of the fixed dust hopper 1344, and the other end is connected to the dust conveying steel pipe 142. One end of the dust conveying steel pipe 142 can be connected to multiple dust conveying steel pipes 141, and the other end is connected to devices such as air pumps and fans to generate negative pressure.

[0067] Furthermore, the dust collector 1 includes a cleaning steel pipe 15; the cleaning steel pipe 15 is disposed on the lower side of each group of filter media 12, the cleaning steel pipe 151 is connected to the ash conveying steel pipe 142, and the other end is used to introduce low-pressure air, low-pressure nitrogen or other gases required by the process, to clean the blockage of the dust pipe 14, the fixed dust bin 1344, the rotating dust bin 1343, the suction pipe 131, and the filter media 12.

[0068] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A rotatable dust removal device, characterized in that, Includes dust collectors and ash storage silos; The dust collector is used to filter the introduced dust-laden flue gas and discharge the filtered clean flue gas. The ash storage bin is connected to the dust collector and is used to store the dust collected in the flue gas by the dust collector.

2. The rotatable dust removal device according to claim 1, characterized in that, The dust collector includes a cylinder, filter media, and a dust removal mechanism; Several sets of filter media are arranged on the upper side of the cylinder; The dust removal mechanism is located circumferentially in each group of filter media.

3. The rotatable dust removal device according to claim 2, characterized in that, The dust removal mechanism includes a suction pipe, a dust brush, a movable dust brush drive mechanism, and a movable dust transmission mechanism. The suction pipe is connected to the moving dust drive mechanism via a moving dust transmission mechanism, which is used to drive the suction pipe to rotate clockwise or counterclockwise along the circumference of the filter material. The dust brush is located on the side of the suction pipe near the filter material.

4. The rotatable dust removal device according to claim 3, characterized in that, The suction pipe is located on the inner or outer side of the filter material in the circumference direction.

5. The rotatable dust removal device according to claim 4, characterized in that, The suction pipe is connected to the ash storage bin via a dust pipe.

6. The rotatable dust removal device according to claim 5, characterized in that, The mobile dust transmission mechanism includes a rotating shaft, a rotating shaft track, a rotating dust chamber, and a fixed dust chamber. One end of the rotating shaft is connected to the rotating dust chamber, and the other end passes through the suction pipe and is connected to the rotating shaft track. The rotating shaft track is set on the perforated plate surface of the cylinder. The rotating dust chamber and the fixed dust chamber are connected. The inner cavity of the rotating dust chamber is connected to the lower side of the suction pipe. The fixed dust chamber is installed at the lower part of the filter material.

7. The rotatable dust removal device according to claim 6, characterized in that, The dust brush base includes a slide, a compression spring, and a dust brush holder. The slide is located on both sides of the suction pipe opening, and a compression spring is installed in each slide. One end of each compression spring is connected to the dust brush through the dust brush holder.

8. The rotatable dust removal device according to claim 7, characterized in that, The brush heads of the two dust brushes on both sides of the opening of the suction pipe are spaced apart along the surface dust layer of the filter material.

9. The rotatable dust removal device according to claim 8, characterized in that, The dust collector includes a dust duct; the dust duct is located on the underside of the filter media; The dust pipeline includes a dust conveying steel pipe and a dust conveying steel pipe. One end of the dust conveying steel pipe is connected to the opening of the fixed dust hopper, and the other end is connected to the dust conveying steel pipe. One end of the dust conveying steel pipe can be connected to multiple dust conveying steel pipes, and the other end is connected to devices such as air pumps and fans to generate negative pressure.

10. The rotatable dust removal device according to claim 9, characterized in that, The dust collector includes a cleaning steel pipe; the cleaning steel pipe is located on the underside of each group of filter media; the cleaning steel pipe is connected to the ash conveying steel pipe, and the other end is used to introduce low-pressure air, low-pressure nitrogen, or other gases required by the process to clean the blockages in the dust pipes, fixed dust bins, rotating dust bins, suction pipes, and filter media.

Images