Dust removal device for sand-gravel material processing

Abstract

The utility model belongs to the field of environmental protection and dust removal, and discloses a dust removal device for gravel material processing, which comprises a filter cartridge, one end of the filter cartridge is an air inlet end, the other end of the filter cartridge is an air outlet end, the inner wall of the filter cartridge is fixedly connected with an oscillation plate arranged along the length direction of the filter cartridge, and the inside of the filter cartridge is rotatably connected with a first rotating shaft and a second rotating shaft. The first rotating shaft is fixedly connected with the second rotating shaft, the first rotating shaft is fixedly connected with a turbofan, the turbofan is arranged at the air inlet end of the filter cartridge, the second rotating shaft is fixedly connected with at least one mounting seat, at least one mounting groove is formed in the mounting seat, one end of the knocking plate is fixedly connected with a pin shaft, and the other end of the knocking plate is fixedly connected with the pin shaft. The pin shaft is rotationally connected into the mounting groove, the pin shaft is sleeved with a torsional spring, one end of the torsional spring is fixedly connected with the knocking plate, and the other end of the torsional spring is fixedly connected with the inner wall of the mounting groove; and the filter element is fixedly sleeved on the filter cartridge. Dust on the surface of the filter element can be better cleaned, and the cleaning effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection and dust removal, specifically relating to a dust removal device for sand and gravel processing. Background Technology

[0002] Sand and gravel are essential building materials, and sand and gravel of suitable fineness are also raw materials for concrete processing, hence the high demand for them. Because concrete production has strict requirements on the size of sand and gravel, the stones in commonly used sand and gravel often need to be crushed and screened first. Concrete aggregates often use crushed stone, which is made by crushing unshaped bluestone.

[0003] During the crushing process, significant dust is often generated due to the dust carried by the stone itself and the dust produced by stone breakage. To ensure the environment of the workshop and the health of the workers, crushing workshops are usually equipped with industrial dust collectors. Pulse jet dust collectors are one of the most commonly used dust collectors. They mainly utilize multiple filter cartridges as the dust removal and purification structure. When the dust on the surface of the filter cartridges is thick, a pulse controller sends a command to inject high-pressure gas into the filter cartridges, blowing away the dust. However, this method of relying solely on airflow to clean dust is relatively inefficient, especially when the filter cartridges are partially clogged, making it even more difficult to remove dust from the filter cartridge surface using airflow. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dust removal device for sand and gravel processing, which solves the problem that it is more difficult to blow away the dust on the surface of the filter cartridge by airflow in the existing technology.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A dust removal device for sand and gravel processing includes:

[0007] A filter cartridge, with one end as an air inlet and the other end as an air outlet, has a vibrating plate fixedly connected to its inner wall along its length. A first rotating shaft and a second rotating shaft are rotatably connected inside the filter cartridge, and the first and second rotating shafts are fixedly connected. A turbine fan is fixedly connected to the first rotating shaft and is located at the air inlet of the filter cartridge. At least one mounting base is fixedly connected to the second rotating shaft, and the mounting base has at least one mounting groove. A pin is fixedly connected to one end of a striking plate, and the pin is rotatably connected within the mounting groove. A torsion spring is fitted onto the pin, with one end of the torsion spring fixedly connected to the striking plate and the other end fixedly connected to the inner wall of the mounting groove.

[0008] The filter element is fixedly sleeved on the filter cylinder.

[0009] The principles and technical effects of the above technical solution are as follows:

[0010] When a large amount of dust accumulates on the outer surface of the filter element, the air outlet of the filter cartridge is blocked. The first and second rotating shafts are driven by the drive source to rotate. The first rotating shaft drives the turbine fan to rotate, and the rotation of the turbine fan causes external air to enter the interior of the filter cartridge from the air inlet. Since the air outlet of the filter cartridge is blocked, the airflow flows from the inside of the filter element to the outside, blowing away the dust accumulated on the outer surface of the filter element. At the same time, the rotation of the second rotating shaft drives the mounting base to rotate, and the mounting base drives the striking plate to rotate around the second rotating shaft. This causes the other end of the striking plate to continuously strike the vibrating plate, causing the filter cartridge to vibrate and further shaking off the dust on the outer surface of the filter element. Specifically, when the other end of the striking plate hits the vibrating plate, the striking plate will deflect around the pin. When the striking plate separates from the vibrating plate, the striking plate will return to its original position under the action of the torsion spring, preparing for the next strike.

[0011] In a preferred embodiment, the present invention can be further configured such that the filter cartridge has a plurality of air vents.

[0012] In a preferred embodiment, the present invention can be further configured such that: the air inlet end of the filter cartridge has a closed structure and is fixedly connected to a motor; the output end of the motor is fixedly connected to a first rotating shaft; a plurality of air inlet holes are opened on the periphery of the air inlet end of the filter cartridge; and the air outlet end of the filter cartridge has an open structure.

[0013] In a preferred embodiment, the present invention can be further configured such that a speed reducer is fixedly connected between the first rotating shaft and the second rotating shaft.

[0014] In a preferred embodiment, the present invention can be further configured such that: the two ends of the second rotating shaft are rotatably connected to brackets, the brackets are fixedly connected inside the filter cylinder, and the reducer is fixedly connected to the brackets.

[0015] In a preferred embodiment, the present invention can be further configured such that: a flange is fixedly connected to the outer side of the filter cartridge near the air inlet end; the flange is detachably connected to the mounting plate; the mounting plate is detachably connected to the side wall of the dust collector; and the air outlet end of the filter cartridge extends outward through the other side wall of the dust collector.

[0016] In a preferred embodiment, the present invention can be further configured such that: an air inlet pipe is fixedly connected to the side end of the dust collection box, and the air inlet pipe communicates with the interior of the dust collection box.

[0017] In a preferred embodiment, the present invention can be further configured such that: a dust collection hopper is fixedly connected to the bottom of the dust collection box, the dust collection hopper is connected to the interior of the dust collection box, and a baffle is inserted into the lower end of the dust collection hopper.

[0018] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0019] A fixed connection refers to a connection in which parts or components are fixed in place, with no relative movement between them. These connections are divided into two types: detachable and non-detachable.

[0020] (1) Detachable connections use screws, splines, wedges, etc. to fix parts together. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, wedges) and properly tightened.

[0021] (2) Non-removable connections mainly refer to welding, riveting, and tenon joints. Since disassembly is required by forging, sawing, or oxy-acetylene cutting during repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to the process quality, technical inspection, and remedial measures (such as correction, polishing, etc.) when making connections.

[0022] A threaded connection is a detachable connection in which threaded parts (or the threaded portion of the connected parts) are joined together as one unit.

[0023] A sliding connection refers to two objects that are in contact but not fixed, and can slide relative to each other.

[0024] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0025] The beneficial effects of this utility model are:

[0026] When a large amount of dust accumulates on the outer surface of the filter element, the air outlet of the filter cartridge is blocked. The first and second rotating shafts are driven by the drive source to rotate. The first rotating shaft drives the turbine fan to rotate, and the rotation of the turbine fan causes external air to enter the interior of the filter cartridge from the air inlet. Since the air outlet of the filter cartridge is blocked, the airflow flows from the inside of the filter element to the outside, blowing away the dust accumulated on the outer surface of the filter element. At the same time, the rotation of the second rotating shaft drives the mounting base to rotate, and the mounting base drives the striking plate to rotate around the second rotating shaft, so that the other end of the striking plate continuously strikes the vibrating plate, causing the filter cartridge to vibrate and further shaking off the dust on the outer surface of the filter element. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a front view of the overall structure of an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this utility model from the rear.

[0030] Figure 3 This is a schematic diagram of the external structure of the filter cylinder according to an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the internal structure of the filter cylinder according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the connection structure at the reducer in an embodiment of this utility model;

[0033] Figure 6 This is an embodiment of the present utility model. Figure 5 Schematic diagram of the structure at point A in the middle. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Based on the concept of this application, combined with Figures 1 to 6This describes an embodiment of a dust removal device for sand and gravel processing. Specifically, the dust removal device is constructed as a split structure, comprising a filter cartridge 1, a turbine fan 7, a striking plate 10, and a filter element 13, which work together. When a large amount of dust accumulates on the outer surface of the filter element 13, the air outlet 3 of the filter cartridge 1 is blocked. A drive source drives a first rotating shaft 5 and a second rotating shaft 6 to rotate. The first rotating shaft 5 drives the turbine fan 7 to rotate. The rotation of the turbine fan 7 causes external air to enter the interior of the filter cartridge 1 from the air inlet 2. Since the air outlet 3 of the filter cartridge 1 is blocked, the airflow flows from the interior to the exterior of the filter element 13, thus cleaning the filter element 13. Dust accumulated on the outer surface of filter element 13 is blown away. At the same time, the rotation of the second rotating shaft 6 drives the mounting base 8 to rotate. The mounting base 8 drives the striking plate 10 to rotate around the second rotating shaft 6, so that the other end of the striking plate 10 continuously strikes the vibrating plate 4, causing the filter cartridge 1 to vibrate, further shaking off the dust on the outer surface of the filter element 13. Specifically, when the other end of the striking plate 10 hits the vibrating plate 4, the striking plate 10 will deflect around the pin shaft 11. When the striking plate 10 separates from the vibrating plate 4, the striking plate 10 is reset under the action of the torsion spring 12, preparing for the next strike.

[0037] like Figures 1 to 6 As shown, a dust removal device for sand and gravel processing includes:

[0038] A filter cartridge 1 has an air inlet 2 at one end and an air outlet 3 at the other end. A vibrating plate 4 is fixedly connected to the inner wall of the filter cartridge 1 along its length. A first rotating shaft 5 and a second rotating shaft 6 are rotatably connected inside the filter cartridge 1. The first rotating shaft 5 and the second rotating shaft 6 are fixedly connected. A turbo fan 7 is fixedly connected to the first rotating shaft 5. The turbo fan 7 is located at the air inlet 2 of the filter cartridge. At least one mounting seat 8 is fixedly connected to the second rotating shaft 6. At least one mounting groove 9 is provided on the mounting seat 8. A pin 11 is fixedly connected to one end of a striking plate 10. The pin 11 is rotatably connected in the mounting groove 9. A torsion spring 12 is sleeved on the pin 11. One end of the torsion spring 12 is fixedly connected to the striking plate 10, and the other end is fixedly connected to the inner wall of the mounting groove 9.

[0039] Filter element 13 is fixedly fitted onto filter cylinder 1.

[0040] In use, when a large amount of dust accumulates on the outer surface of the filter element 13, the air outlet 3 of the filter cartridge 1 is blocked. The first rotating shaft 5 and the second rotating shaft 6 are driven to rotate by the drive source. The first rotating shaft 5 drives the turbine fan 7 to rotate. The rotation of the turbine fan 7 causes external air to enter the interior of the filter cartridge 1 from the air inlet 2. Since the air outlet 3 of the filter cartridge 1 is blocked, the airflow flows from the inside of the filter element 13 to the outside, blowing away the dust accumulated on the outer surface of the filter element 13. At the same time, the rotation of the second rotating shaft 6... The motor drives the mounting base 8 to rotate, and the mounting base 8 drives the striking plate 10 to rotate around the second rotating shaft 6, so that the other end of the striking plate 10 continuously strikes the vibrating plate 4, causing the filter cartridge 1 to vibrate, further shaking off the dust on the outer surface of the filter element 13. Specifically, when the other end of the striking plate 10 hits the vibrating plate 4, the striking plate 10 will deflect around the pin shaft 11. When the striking plate 10 separates from the vibrating plate 4, the striking plate 10 will be reset under the action of the torsion spring 12, preparing for the next strike.

[0041] Of course, in some other embodiments, the filter cartridge 1 can also be a skeleton structure, consisting of a filter cartridge skeleton and a filter cartridge mesh.

[0042] In order to prevent dusty gas from entering through the gap between the two ends of the filter element 13 and the filter cylinder 1, thus reducing the filtration effect, the two ends of the filter element 13 and the filter cylinder 1 need to be sealed. Depending on the specific situation, different methods such as adding sealing rings or adhesive bonding can be used for sealing, which will not be described in detail here.

[0043] In one embodiment of this utility model, in order to enable the air mixed with dust to be filtered by the filter element 13 and to allow the gas to flow normally, the filter cylinder 1 is provided with a number of air vents 14. At the same time, a negative pressure device is connected to the air outlet 3 of the filter cylinder 1, and one end of the filter cylinder 1, which is the air inlet 2, is blocked. When the negative pressure device is activated, a negative pressure is generated inside the filter cylinder 1, which allows the air to flow through the filter element 13 and trap the dust, thereby achieving the function of filtering dust.

[0044] In one embodiment of this utility model, the air inlet 2 of the filter cartridge 1 has a closed structure and is fixedly connected to a motor 15. The output end of the motor 15 is fixedly connected to the first rotating shaft 5. Several air inlet holes 16 are opened on the periphery of the air inlet 2 of the filter cartridge 1, and the air outlet 3 of the filter cartridge 1 has an open structure. The motor 15, as a driving source, can drive the first rotating shaft 5 and the second rotating shaft 6 to rotate, thereby causing the first rotating shaft 5 to drive the turbine fan 7 to rotate. The rotation of the turbine fan 7 causes external air to enter the interior of the filter cartridge 1 from the air inlet 2. Since the air outlet 3 of the filter cartridge 1 is blocked, the airflow flows from the interior of the filter element 13 to the outside, blowing away the dust accumulated on the outer surface of the filter element 13. At the same time, the rotation of the second rotating shaft 6 drives the mounting base 8 to rotate, and the mounting base 8 drives the striking plate 10 to rotate around the second rotating shaft 6, so that the other end of the striking plate 10 continuously strikes the vibrating plate 4, causing the filter cartridge 1 to vibrate, further shaking off the dust on the outer surface of the filter element 13.

[0045] In one embodiment of this utility model, for the turbofan 7 to generate high-speed flowing gas, the first rotating shaft 5 needs to rotate at a very high speed. If the second rotating shaft 6 rotates at the same speed as the first rotating shaft 5, the vibrating plate 4 and the striking plate 10 inside the filter cylinder 1 will be damaged under high-speed rotation. Therefore, a reducer 17 is fixedly connected between the first rotating shaft 5 and the second rotating shaft 6. The two ends of the second rotating shaft 6 are rotatably connected to the bracket 18, which is fixedly connected inside the filter cylinder 1. The reducer 17 is fixedly connected to the bracket 18. By reducing the speed of the reducer 17, the rotation speed of the second rotating shaft 6 is reduced, thereby reducing the probability of damage to the internal structure of the filter cylinder 1.

[0046] In one embodiment of this utility model, for ease of assembly and disassembly, a flange 19 is fixedly connected to the outer side of the filter cartridge 1 near the air inlet 2. The flange 19 is detachably connected to the mounting plate 20, which is detachably connected to the side wall of the dust collector 21. The air outlet 3 of the filter cartridge 1 extends outward through the other side wall of the dust collector 21. In use, the filter element 13 is first fitted onto the filter cartridge 1, and then multiple filter cartridges 1 fitted with filter elements are installed on the mounting plate 20. The flange 19 is fixed to the mounting plate 20 with bolts and nuts. The mounting plate 20 is then fixed to the side wall of the dust collector 21 with bolts and nuts. During this process, the air outlet 3 of the filter cartridge 1 needs to be aligned with the hole on the other side wall of the dust collector 21 and passed through.

[0047] In one embodiment of this utility model, an air inlet pipe 22 is fixedly connected to the side of the dust collector 21, and the air inlet pipe 22 communicates with the interior of the dust collector 21. A dust collection hopper 23 is fixedly connected to the bottom of the dust collector 21, and the dust collection hopper 23 communicates with the interior of the dust collector 21. A baffle 24 is inserted into the lower end of the dust collection hopper 23. In use, the air inlet pipe 22 is connected to the sand and gravel workshop. The dust-containing gas in the sand and gravel workshop is discharged into the dust collector 21 through the air inlet pipe 22 and filtered by the filter cartridge 1 installed therein. The dust in the air falls into the dust collection hopper 23 at the bottom of the dust collector 21, and the filtered air flows out from the filter cartridge 1 and is finally discharged from the air outlet 3. When there is a lot of dust collected in the dust collection hopper 23, the dust can be discharged by pulling open the baffle 24.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A dust removal device for sand and gravel processing, characterized in that, include: A filter cylinder (1) has an air inlet (2) at one end and an air outlet (3) at the other end. A vibrating plate (4) is fixedly connected to the inner wall of the filter cylinder (1) along its length. A first rotating shaft (5) and a second rotating shaft (6) are rotatably connected inside the filter cylinder (1). The first rotating shaft (5) and the second rotating shaft (6) are fixedly connected. A turbofan (7) is fixedly connected to the first rotating shaft (5). The turbofan (7) is located on the filter cylinder. At the air intake end (2), at least one mounting seat (8) is fixedly connected to the second rotating shaft (6). At least one mounting groove (9) is provided on the mounting seat (8). One end of the striking plate (10) is fixedly connected to a pin (11). The pin (11) is rotatably connected in the mounting groove (9). A torsion spring (12) is sleeved on the pin (11). One end of the torsion spring (12) is fixedly connected to the striking plate (10), and the other end is fixedly connected to the inner wall of the mounting groove (9). Filter element (13), which is fixedly sleeved on filter cylinder (1).

2. The dust removal device for sand and gravel processing according to claim 1, characterized in that, The filter cartridge (1) has several air vents (14).

3. The dust removal device for sand and gravel processing according to claim 2, characterized in that, The air inlet (2) of the filter cylinder (1) has a closed structure and is fixedly connected to a motor (15). The output end of the motor (15) is fixedly connected to the first rotating shaft (5). Several air inlet holes (16) are opened on the periphery of the air inlet (2) of the filter cylinder (1). The air outlet (3) of the filter cylinder (1) has an open structure.

4. The dust removal device for sand and gravel processing according to claim 3, characterized in that, A speed reducer (17) is fixedly connected between the first rotating shaft (5) and the second rotating shaft (6).

5. A dust removal device for sand and gravel processing according to claim 4, characterized in that, The two ends of the second rotating shaft (6) are rotatably connected to brackets (18), the brackets (18) are fixedly connected inside the filter cylinder (1), and the reducer (17) is fixedly connected to the brackets (18).

6. A dust removal device for sand and gravel processing according to claim 5, characterized in that, A flange (19) is fixedly connected to the outer side of the filter cartridge (1) near the air inlet end (2). The flange (19) is detachably connected to the mounting plate (20). The mounting plate (20) is detachably connected to the side wall of the dust collector (21). The air outlet end (3) of the filter cartridge (1) extends outward through the other side wall of the dust collector (21).

7. A dust removal device for sand and gravel processing according to claim 6, characterized in that, An air inlet pipe (22) is fixedly connected to the side end of the dust collector (21), and the air inlet pipe (22) communicates with the inside of the dust collector (21).

8. A dust removal device for sand and gravel processing according to claim 7, characterized in that, The bottom of the dust collection box (21) is fixedly connected to a dust collection hopper (23), which is connected to the inside of the dust collection box (21). A baffle (24) is inserted into the lower end of the dust collection hopper (23).

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