Multi-stage crushing equipment

Abstract

The utility model provides multi-stage crushing equipment, which belongs to the technical field of limestone crushing equipment and comprises a roller type crushing box at the top of a multi-stage crushing box body and a dust removal case fixed on the side wall of the roller type crushing box, ventilation branch pipes are arranged at four corners of the upper part of the roller type crushing box, and the air outlet ends of the ventilation branch pipes are communicated with ventilation components. The bottom of the ventilation assembly communicates with a purification fan, the purification fan is fixed to the bottom in the dust removal case, an exhaust pipeline is arranged at the air outlet end of the purification fan, a filter box is arranged at the air outlet end of the exhaust pipeline, a filter plate is arranged in the middle of the filter box in the left-right direction, sliding rails are arranged on the upper surface and the lower surface of the filter plate, and a notch is formed in one side of the filter box in a penetrating mode. Dust in the roller type crushing box can be discharged into the filtering box body by using the purification fan to be matched with the ventilation assembly, then the dust is filtered for the second time through the activated carbon layer and the filtering net in the filtering plate, and finally the dust is discharged into the atmosphere through the filtering cotton plate on the filtering box body.

Description

Technical Field

[0001] The utility model relates to the technical field of limestone crushing equipment, and particularly relates to a multi-stage crushing equipment. Background Art

[0002] In the production and processing of limestone, it is necessary to crush the limestone raw materials, and thus a multi-stage crushing equipment is required for the fine crushing of limestone. Usually, a roll crusher is used for primary crushing. The roll crusher has the advantages of simple structure, reliable operation, and large crushing ratio.

[0003] In the prior art, most limestone multi-stage crushing equipments are prone to generate dust during the primary crushing of limestone. Generally, a roll crushing box is used for primary crushing, and thus a purification fan is added to extract the dust generated during the crushing of limestone. However, the existing purification fan can only filter the dust once, resulting in some dust still adhering to the discharged gas, which affects the environment. To solve the above problems, a multi-stage crushing equipment is proposed herein. Summary of the Utility Model

[0004] In view of this, the utility model provides a multi-stage crushing equipment. The utility model can discharge the dust in the roll crushing box into the filter box body by using a purification fan in cooperation with a ventilation component, and then secondary filter the dust through the activated carbon layer and the filter screen in the filter plate, and finally discharge it into the atmosphere through the filter cotton plate on the filter box body.

[0005] To solve the above technical problems, the utility model provides a multi-stage crushing equipment, which includes a roll crushing box at the top of the multi-stage crushing box body and a dust removal machine box fixed to the side wall of the roll crushing box. Ventilation branch pipes are arranged at the four corners of the upper part of the roll crushing box, and a ventilation component is connected to the air outlet end of the ventilation branch pipes. The bottom of the ventilation component is connected to a purification fan, and the purification fan is fixed to the inner bottom of the dust removal machine box. An exhaust pipe is arranged at the air outlet end of the purification fan, and a filter box body is arranged at the air outlet end of the exhaust pipe. A filter plate is arranged in the middle of the filter box body along the left-right direction, and slide rails are arranged on the upper and lower surfaces of the filter plate. A notch is arranged through one side of the filter box body, and a sealing plate is arranged on one side of the notch.

[0006] The inner surface of the sealing plate is fixed to the outer side wall of the filter plate. The size of the side wall of the filter plate is the same as that of the notch, and the size of the sealing plate is the same as that of the notch. A handle for facilitating the insertion and extraction of the sealing plate is fixed in the middle of the outer surface of the sealing plate.

[0007] A set of positioning buckles for connecting the sealing plate and the filter box body are symmetrically arranged at the upper and lower ends of the outer surface of the sealing plate, and the positioning buckles are hinged to the outer side wall of the filter box body.

[0008] The filter plate includes a hollow cavity inside the filter plate. The hollow cavity is used to place an activated carbon layer. An activated carbon layer for filtering dust is filled in the hollow cavity. The activated carbon layer is in a square shape with dimensions consistent with the hollow cavity, and filter nets on the front and back surfaces of the hollow cavity. The filter nets are used to allow air to flow through and prevent the activated carbon layer from falling off. The filter nets are fixed to the front and back surfaces of the filter plate.

[0009] A filter cotton plate for further filtering the gas passing through the filter plate is fixedly provided on the air outlet surface of the filter box body.

[0010] A heat dissipation grille for cooling the purification fan during operation is provided on the top of the dust removal machine box.

[0011] The ventilation assembly includes a ventilation main pipe communicated with the ventilation branch pipes. The ventilation main pipe is used to converge the air flowing through the ventilation branch pipes into the purification fan, and a sealing connector at the air outlet end of the ventilation main pipe. The sealing connector is used to connect the ventilation main pipe to the air inlet end of the purification fan. The lower end of the sealing connector is connected to the air inlet pipe of the purification fan.

[0012] The slide rails are slidably matched with the upper and lower surfaces of the filter plate, and the slide rails are fixed to the upper and lower inner walls inside the filter box body.

[0013] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0014] 1. Start the purification fan. The purification fan is communicated with the ventilation branch pipes through the sealing connector on the ventilation assembly and the ventilation main pipe. Thus, the purification fan can directly extract the dust in the roll crusher box communicated with the ventilation branch pipes. The dust is discharged into the filter box body through the purification fan via the exhaust pipe, and then the dust is secondarily filtered by the activated carbon layer and the filter nets inside the filter plate. Finally, it is discharged into the atmosphere through the filter cotton plate on the filter box body, improving the purification and filtration ability of the dust in the roll crusher box.

[0015] 2. Separate the sealing plate from the filter box body by removing the positioning buckle, and then use the handle to pull out the sealing plate. Thus, the filter plate fixed to the sealing plate is pulled out together with the slide rails, facilitating the replacement of the filter element inside the filter plate.

[0016] 3. A heat dissipation grille for cooling the purification fan during operation is provided on the top of the dust removal machine box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of a multi-stage crushing device of the present invention;

[0018] Figure 2 It is a bottom view cross-sectional view of the present invention;

[0019] Figure 3 It is a partial cross-sectional view at B of the present invention;

[0020] Figure 4 This is the main sectional view of the present utility model;

[0021] Figure 5 This is the partial sectional view A of the present utility model;

[0022] Figure 6 This is the side sectional view of the present utility model.

[0023] Explanation of reference numerals in the drawings: 100, multi-stage crushing box body; 101, roller crushing box; 102, ventilation branch pipe; 103, ventilation assembly; 104, ventilation main pipe; 105, sealing connector; 200, dust removal machine box; 201, purification fan; 202, heat dissipation grille; 203, exhaust duct; 300, filter box body; 301, filter plate; 302, slide rail; 303, notch; 304, sealing plate; 305, handle; 306, positioning buckle; 307, filter cotton board; 308, hollow cavity; 309, activated carbon layer; 310, filter net. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will combine the accompanying drawings of the embodiments of the present utility model Figures 1-6 to clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are some, rather than all, of the embodiments of the present utility model. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

[0025] As Figures 1-6As shown in the figure: This embodiment provides a multi-stage crushing device, including a roll crushing box 101 at the top of a multi-stage crushing box body 100, and a dust removal box 200 fixed to the side wall of the roll crushing box 101. Ventilation branch pipes 102 for dust in the roll crushing box 101 to enter a purification fan 201 are provided at the four corners of the upper part of the roll crushing box 101. A ventilation component 103 for connecting the ventilation branch pipe 102 and the purification fan 201 is connected to the air outlet end of the ventilation branch pipe 102. A purification fan 201 for extracting dust in the roll crushing box 101 is connected to the bottom of the ventilation component 103. The purification fan 201 is fixed to the inner bottom of the dust removal box 200. The dust removal box 200 can be made of noise-reducing material. An exhaust duct 203 for discharging the dust extracted by the purification fan 201 into a filter box 300 is provided at the air outlet end of the purification fan 201. The exhaust duct 203 is hermetically connected to the purification fan 201. A filter box 300 for filtering dust is provided at the air outlet end of the exhaust duct 203. The filter box 300 is fixedly connected to the dust removal box 200 by using shims and bolts. A filter plate 301 for enhancing dust filtration is provided in the middle of the filter box 300 in the left-right direction. Slide rails 302 for facilitating the movement and insertion / extraction of the filter plate 301 are provided on the upper and lower surfaces of the filter plate 301. A notch 303 for facilitating the insertion / extraction of the filter plate 301 penetrates through one side of the filter box 300. A sealing plate 304 for sealing the notch 303 is provided on one side of the notch 303.

[0026] During use, start the purification fan 201. The ventilation main pipe 104 and the ventilation branch pipe 102 are connected through a sealing connector 105 on the ventilation component 103, so that the purification fan 201 can directly extract the dust in the roll crushing box 101 connected to the ventilation branch pipe 102. The dust is discharged into the filter box 300 through the exhaust duct 203 by the purification fan 201. Then, the dust is secondarily filtered by an activated carbon layer 309 and a filter screen 310 in the filter plate 301, and finally discharged into the atmosphere through a filter cotton plate 307 on the filter box 300, improving the purification and filtration ability of the dust in the roll crushing box 101. By removing the positioning buckle 306, the sealing plate 304 is separated from the filter box 300, and then the sealing plate 304 is pulled out by using a handle 305, so that the filter plate 301 fixed to the sealing plate 304 is pulled out together through the slide rail 302, facilitating the replacement of the filter element in the filter plate 301.

[0027] This embodiment provides a multi-stage crushing device,

[0028] Such as Figure 2 、 3As shown in Figures 5 and 6: The inner surface of the sealing plate 304 is fixedly connected to the outer side wall of the filter plate 301 by bolts. The size of the side wall of the filter plate 301 is the same as that of the notch 303, and the size of the sealing plate 304 is the same as that of the notch 303. In the center of the outer surface of the sealing plate 304, a handle 305 for facilitating the insertion and extraction of the sealing plate 304 is fixedly provided. The handle 305 and the sealing plate 304 can be fixedly connected by using packing iron and bolts. The handle 305 has a square hollow design. At the upper and lower ends of the outer surface of the sealing plate 304, a set of positioning buckles 306 for connecting the sealing plate 304 to the filter box body 300 are symmetrically provided. The sealing plate 304 and the positioning buckles 306 are fixedly connected by bolts. The positioning buckles 306 are hingedly connected to the outer side wall of the filter box body 300.

[0029] As Figure 2 、 3 、5 and 6 show: The filter plate 301 includes a hollow cavity 308 inside the filter plate 301. The hollow cavity 308 is used to place the activated carbon layer 309. The activated carbon layer 309 for filtering dust is filled in the hollow cavity 308. The activated carbon layer 309 is in a square block shape with the same size as the hollow cavity 308, and filter meshes 310 on the front and back surfaces of the hollow cavity 308. The filter meshes 310 are used to allow air to flow through to prevent the activated carbon layer 309 from falling. The filter meshes 310 and the front and back surfaces of the filter plate 301 are fixedly connected by bolts.

[0030] As Figure 1 、 2 、5 show: On the air outlet surface of the filter box body 300, a filter cotton board 307 for further filtering the gas passing through the filter plate 301 is fixedly provided. The filter cotton board 307 and the filter box body 300 are fixedly connected by bolts.

[0031] As Figure 1 、 2 shown: On the top of the dust removal machine box 200, a heat dissipation grille 202 for dissipating heat when the purification fan 201 works is provided. The dust removal machine box 200 and the heat dissipation grille 202 are fixedly connected by bolts.

[0032] As Figure 1 、 2 、4 and 5 show: The ventilation assembly 103 includes a ventilation main pipe 104 communicating with the ventilation branch pipe 102. The ventilation main pipe 104 and the ventilation branch pipe 102 are welded and communicated. The ventilation main pipe 104 is used to converge the air flowing through the ventilation branch pipe 102 into the purification fan 201, and a sealing connector 105 at the air outlet end of the ventilation main pipe 104. The ventilation main pipe and the sealing connector 105 can be fixedly connected by using a flange and bolts. The sealing connector 105 is used for sealing connection between the ventilation main pipe 104 and the air inlet end of the purification fan 201. The lower end of the sealing connector 105 is hermetically connected to the air inlet pipe of the purification fan 201.

[0033] As Figure 4 、5 As shown, the slide rail 302 is in sliding fit with the upper and lower surfaces of the filter plate 301, and the slide rail 302 can be fixedly welded to the upper and lower inner walls in the filter box body 300.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-stage crushing device, comprising a roll crushing box (101) at the top of a multi-stage crushing box body (100), and a dust removal box (200) fixed to the side wall of the roll crushing box (101), characterized in that: Four corners of the upper part of the roll crushing box (101) are provided with ventilation branch pipes (102). An air outlet end of the ventilation branch pipe (102) is communicated with a ventilation assembly (103). A bottom of the ventilation assembly (103) is communicated with a purification fan (201). The purification fan (201) is fixed to an inner bottom of the dust removal machine box (200). An air outlet end of the purification fan (201) is provided with an exhaust duct (203). An air outlet end of the exhaust duct (203) is provided with a filter box body (300). A filter plate (301) is arranged in the middle of the filter box body (300) in a left-right direction. Slide rails (302) are arranged on upper and lower surfaces of the filter plate (301). A notch (303) is arranged through one side of the filter box body (300). A sealing plate (304) is arranged on one side of the notch (303).

2. The multi-stage crushing device according to claim 1, characterized in that: An inner surface of the sealing plate (304) is fixed to an outer side wall of the filter plate (301). A side wall dimension of the filter plate (301) is consistent with a dimension of the notch (303). A dimension of the sealing plate (304) is consistent with the dimension of the notch (303). A handle (305) is fixedly arranged in the middle on an outer surface of the sealing plate (304).

3. A multi-stage crushing device according to claim 2, characterized in that: A group of positioning buckles (306) are symmetrically arranged at upper and lower ends on an outer surface of the sealing plate (304). The positioning buckles (306) are hingedly connected with an outer side wall of the filter box body (300).

4. A multi-stage crushing device according to claim 3, characterized in that: The filter plate (301) includes a hollow cavity (308) inside the filter plate (301), an activated carbon layer (309) filled in the hollow cavity (308), the activated carbon layer (309) being in a square shape with a dimension consistent with that of the hollow cavity (308), and filter meshes (310) on front and back surfaces of the hollow cavity (308). The filter meshes (310) are fixed to front and back surfaces of the filter plate (301).

5. The multi-stage crushing device according to claim 4, characterized in that: A filter cotton plate (307) is fixedly arranged on an air outlet surface of the filter box body (300).

6. A multi-stage crushing device according to claim 5, characterized in that: A heat dissipation grille (202) is arranged on a top of the dust removal machine box (200).

7. A multi-stage crushing device according to claim 6, characterized in that: The ventilation assembly (103) includes a ventilation main pipe (104) communicated with the ventilation branch pipe (102), and a sealing connector (105) at an air outlet end of the ventilation main pipe (104). A lower end of the sealing connector (105) is connected to an air inlet end of the purification fan (201) through a pipe.

8. A multi-stage crushing device according to claim 7, characterized in that: The slide rails (302) are in sliding fit with upper and lower surfaces of the filter plate (301). The slide rails (302) are fixed to upper and lower inner walls inside the filter box body (300).

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