Crushing equipment for mining

Abstract

The utility model provides crushing equipment for mining, and relates to the technical field of mining, the crushing equipment comprises a crushing box, a feeding end is arranged at the top of the crushing box, a supporting frame is fixedly mounted at the bottom of the crushing box, a discharging cover is fixedly mounted at the bottom of the crushing box, and symmetrically distributed crushing rollers are rotatably mounted in the crushing box; a smashing motor is fixedly installed on the front face of the outer surface of the smashing box, the driving end of the smashing motor is connected with a smashing roller, a dust suction assembly is arranged on one side of the smashing box, and a fixing frame is fixedly installed on the back face of the supporting frame. According to the dust suppression device, a dry type negative pressure dust removal mode is adopted, the annular dust suction cover and the rectangular dust suction cover are used for capturing flying dust in the whole process at the feeding port and the discharging port, efficient purification is achieved in combination with the filtering assembly, water resource consumption of a traditional spraying mode is thoroughly avoided, the dust suppression coverage range is remarkably widened, and the dust suppression effect is remarkably improved; and the cleanness of a production environment and the stability of continuous operation are ensured.

Description

Technical Field

[0001] This utility model relates to the field of mining technology, and more specifically, to a crushing device for mining. Background Technology

[0002] With the continuous advancement of global industrialization and the sustained increase in demand for mineral resources, traditional ore crushing processes are no longer fully adapted to the requirements of modern large-scale, high-efficiency, and low-energy-consumption mining production. In open-pit mines or underground mines, primary crushing of ore is a crucial preliminary step in mineral processing and metallurgy, and its efficiency and quality directly affect the cost, energy consumption, and resource recovery rate of subsequent processing.

[0003] For example, the specification of the "Mining Crushing Equipment" disclosed in Chinese Utility Model Patent (Publication No.: CN213133376U) states that when using the mining crushing equipment to transport ore, a feeding cylinder is installed at the top of the crushing structure, and the crushing structure includes a crushing barrel, an extrusion plate, and a rotating shaft frame. The extrusion plate is evenly and vertically arranged along the circumference on the inner wall of the crushing barrel, and the rotating shaft frame is horizontally welded to both the upper and lower ends of the crushing barrel. An extrusion roller is vertically arranged in the crushing barrel, and the two ends of the extrusion roller are rotatably connected through the rotating shaft frame, thereby facilitating the addition of ore raw materials from the feeding cylinder. The feeding cylinder is then welded to the top of the crushing barrel, and a water spray ring plate is welded to the inner wall of the feeding cylinder, thereby spraying water on the surface of the incoming ore, reducing dust generation, and improving the cleanliness of transportation.

[0004] Regarding the aforementioned technologies, this equipment has some shortcomings. In actual use, although the equipment uses a water spray ring plate for wet dust suppression at the feeding end, it does not achieve water resource recycling, resulting in a large water consumption throughout the crushing process and insufficient economic efficiency. At the same time, dust suppression at the front end is insufficient to cover subsequent processes. When the ore is discharged, some of the surface moisture has already evaporated or fallen off, and fine particles will still spread, causing secondary dust pollution and incomplete dust suppression.

[0005] Therefore, we have made improvements to this and proposed a crushing device for mining. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a crushing device for mining, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A crushing device for mining includes a crushing box, a feeding end at the top of the crushing box, a support frame fixedly installed at the bottom of the crushing box, a discharge cover fixedly installed at the bottom of the crushing box, symmetrically distributed crushing rollers rotatably installed inside the crushing box, a crushing motor fixedly installed on the front of the outer surface of the crushing box, the drive end of the crushing motor being connected to the crushing rollers, a dust collection assembly provided on one side of the crushing box, a fixing frame fixedly installed on the back of the support frame, and a filter assembly provided on the top of the fixing frame.

[0009] The dust collection assembly includes an annular dust collection hood fixedly installed at the top of the feed end and a rectangular dust collection hood above one end of the discharge hood. A distribution pipe is fixedly installed on the outer surface of the rectangular dust collection hood. The distribution pipe is connected to the interior of the annular dust collection hood at multiple points. A guide tube is fixedly installed at one end of the distribution pipe. Several upper auxiliary pipes are fixedly installed at equal intervals on the lower side of the outer wall of the guide tube. Several lower auxiliary pipes are fixedly installed at equal intervals on the top of the rectangular dust collection hood. A main pipe is fixedly installed between the opposite ends of the upper and lower auxiliary pipes. A dust pump is provided on one side of the top of the fixed frame.

[0010] As a preferred technical solution of this application, the filter assembly includes two filter boxes fixedly installed on the top of the mounting frame. One end of the main pipe is fixedly connected to a three-way pipe, and the two ends of the three-way pipe are respectively fixedly connected to one side of the two filter boxes and connected in communication. The other side of each of the two filter boxes is fixedly connected to an output pipe. One end of each of the two output pipes is fixedly connected to the input end of a dust pump. The three-way pipe is provided with symmetrically distributed second electric valves, and the two output pipes are each provided with a first electric valve. The interior of each of the two filter boxes is provided with several filter screens.

[0011] As a preferred technical solution of this application, the top of the filter box is provided with slots corresponding to the position and number of filter screens. The slots are slidably inserted into the filter screens. The tops of both sets of filter screens are fixedly installed with sealing covers. The sealing covers are fixedly connected to the top of the filter box by bolts.

[0012] As a preferred technical solution of this application, a handle is fixedly installed on the top of the sealing cover.

[0013] As a preferred technical solution of this application, a flow sensor is provided on the output end of the dust pump.

[0014] As a preferred technical solution of this application, a barrier net is fixedly installed at the port of both the rectangular dust hood and the annular dust hood.

[0015] As a preferred technical solution of this application, a sealing gasket is adhered to the bottom of the sealing cover.

[0016] As a preferred technical solution of this application, each group of filter screens consists of three screens, and the mesh diameter of the three filter screens gradually decreases from the T-junction pipe to the output pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] 1. By using the combination of the crushing box, crushing motor, feeding end, support frame, dust collection component, fixed frame, discharge hood, crushing roller, main pipe, dust collection pump, upper auxiliary pipe, lower auxiliary pipe, rectangular dust collection hood, guide pipe, distribution pipe, and annular dust collection hood, this equipment adopts a dry negative pressure dust removal method. The annular and rectangular dust collection hoods capture dust throughout the inlet and outlet ports, and the filter components achieve efficient purification. This not only completely avoids the water consumption of traditional spraying methods, but also significantly improves the coverage and effect of dust suppression, ensuring the cleanliness of the production environment and the stability of continuous operation.

[0020] 2. Through the coordinated use of the filter components, filter boxes, filter screens, sealing covers, dust pump, flow sensor, handle, slots, second electric valve, and T-connector, the dual filter box alternating operation design, combined with flow sensor monitoring and automatic valve switching, achieves uninterrupted, efficient filtration and stable operation of the dust removal system. At the same time, the structure of the slots and removable sealing covers makes the maintenance and cleaning of the filter screens more convenient, significantly improving the equipment's continuous operation capability and ease of operation. Attached Figure Description

[0021] Figure 1 This application provides a three-dimensional structural schematic diagram of a mining crushing equipment;

[0022] Figure 2 This application provides a cross-sectional structural schematic diagram of a mining crushing equipment;

[0023] Figure 3 This application provides a rear view structural schematic diagram of a mining crushing equipment;

[0024] Figure 4 This application provides a schematic diagram of the connection structure between a dust collection component and a filter component in a mining crushing equipment;

[0025] Figure 5 This is a schematic diagram of the structure of a filter component in a mining crushing device provided in this application.

[0026] The image shows:

[0027] 1. Crushing box; 2. Crushing motor; 3. Feeding end; 4. Support frame; 5. Dust collection assembly; 6. Filter assembly; 7. Fixing frame; 8. Discharge hood; 9. Crushing roller; 10. Main pipe; 11. Filter box; 12. Filter screen; 13. Sealing cover; 14. First electric valve; 15. Output pipe; 16. Dust pump; 17. Flow sensor; 18. Upper auxiliary pipe; 19. Lower auxiliary pipe; 20. Rectangular dust collection hood; 21. Conduit; 22. Distributor pipe; 23. Annular dust collection hood; 24. Handle; 25. Slot; 26. Second electric valve; 27. T-connector. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Example 1

[0033] Please refer to Figures 1-5 A crushing device for mining includes a crushing box 1, a feeding end 3 at the top of the crushing box 1, a support frame 4 fixedly installed at the bottom of the crushing box 1, a discharge cover 8 fixedly installed at the bottom of the crushing box 1, symmetrically distributed crushing rollers 9 rotatably installed inside the crushing box 1, a crushing motor 2 fixedly installed on the front of the outer surface of the crushing box 1, the drive end of the crushing motor 2 being connected to the crushing rollers 9, a dust collection assembly 5 provided on one side of the crushing box 1, a fixing frame 7 fixedly installed on the back of the support frame 4, and a filter assembly 6 provided on the top of the fixing frame 7.

[0034] The dust collection assembly 5 includes an annular dust collection hood 23 fixedly installed at the top of the feed end 3 and a rectangular dust collection hood 20 above one end of the discharge hood 8. A distribution pipe 22 is fixedly installed on the outer surface of the rectangular dust collection hood 20. The distribution pipe 22 is connected to the interior of the annular dust collection hood 23 at multiple points. A guide pipe 21 is fixedly installed at one end of the distribution pipe 22. Several upper auxiliary pipes 18 are fixedly installed at equal intervals on the lower side of the outer wall of the guide pipe 21. Several lower auxiliary pipes 19 are fixedly installed at equal intervals on the top of the rectangular dust collection hood 20. A main pipe 10 is fixedly installed between the opposite ends of the upper auxiliary pipes 18 and the lower auxiliary pipes 19. A dust pump 16 is provided on one side of the top of the mounting bracket 7.

[0035] Furthermore, both the rectangular dust hood 20 and the annular dust hood 23 have barrier nets fixedly installed at their ports. The barrier nets effectively prevent larger particles or debris from being sucked into the dust hood, thus avoiding clogging or damage to subsequent pipes and filter components.

[0036] Example 2

[0037] Further optimization of the mining crushing equipment provided in Embodiment 1: Specifically, the filter assembly 6 includes two filter boxes 11 fixedly installed on the top of the fixed frame 7. One end of the main pipe 10 is fixedly connected to a three-way pipe 27. The two ends of the three-way pipe 27 are respectively fixedly connected to one side of the two filter boxes 11 and communicate with each other. The other side of each of the two filter boxes 11 is fixedly connected to an output pipe 15. One end of each of the two output pipes 15 is fixedly connected to the input end of the dust suction pump 16. The three-way pipe 27 is provided with symmetrically distributed second electric valves 26. The two output pipes 15 are each provided with a first electric valve 14. The interior of each of the two filter boxes 11 is provided with a plurality of filter screens 12.

[0038] Furthermore, the top of the filter box 11 has slots 25 corresponding to the position and number of filter screens 12. The slots 25 are slidably inserted into the filter screens 12. Sealing covers 13 are fixedly installed on the top of both sets of filter screens 12, and the sealing covers 13 are fixedly connected to the top of the filter box 11 by bolts. The slots 25 enable quick positioning and sliding insertion / removal of the filter screens 12. Combined with the top bolted sealing covers 13, this ensures both installation accuracy and sealing reliability, and significantly improves the convenience of filter maintenance and replacement.

[0039] Furthermore, a handle 24 is fixedly installed on the top of the sealing cover 13. The handle 24 provides a convenient operating point for disassembling and assembling the sealing cover 13 and the built-in filter screen 12, significantly improving the convenience and safety of maintenance operations.

[0040] Furthermore, a flow sensor 17 is installed on the output end of the dust pump 16. The flow sensor 17 can monitor the output flow of the dust pump 16 in real time, providing key data for judging the degree of blockage of the filter screen 12, thereby triggering the automatic switching of the dual filter boxes 11 in a timely manner to ensure the continuous and stable operation of the dust removal system.

[0041] Furthermore, a sealing gasket is adhered to the bottom of the sealing cover 13. This effectively improves the contact sealing between the sealing cover 13 and the filter box 11, preventing short-circuit leakage of dust-laden airflow.

[0042] Furthermore, each set of filter plates 12 consists of three plates, with the mesh diameter of the three filter plates 12 gradually decreasing from the three-way pipe 27 towards the output pipe 15. This forms a three-stage gradient filtration system, which can achieve layer-by-layer interception of dust from coarse to fine, effectively improving the overall filtration accuracy and dust load capacity, while reducing the clogging pressure of the end fine filter plate and extending the filter cleaning cycle.

[0043] It should be noted that the controller control circuit can be implemented by those skilled in the art through simple programming, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0044] The usage process of the mining crushing equipment provided by this utility model is as follows:

[0045] During operation, the equipment first activates the crushing motor 2 via the controller, driving the two crushing rollers 9 to rotate relative to each other. The ore enters the crushing box 1 through the feed end 3 and comes into contact with the crushing rollers 9 to complete the crushing. The crushed material is then discharged through the discharge hood 8. Simultaneously activated, the dust pump 16, through a connecting pipeline consisting of a filter assembly 6, main pipe 10, lower auxiliary pipe 19, upper auxiliary pipe 18, conduit 21, and distribution pipe 22, creates a stable negative pressure adsorption environment inside the annular dust suction hood 23 located above the feed port and the rectangular dust suction hood 20 at the discharge port. This efficiently captures and sucks in the dust generated during the entire process of ore input and output. The captured dust enters the filter assembly 6 for filtration and purification, and finally, the clean gas is discharged through the dust pump 16. This dry negative pressure adsorption method replaces traditional spray dust suppression, achieving full coverage and thorough control of dust generated during the input and output processes while avoiding water consumption.

[0046] During dust removal operations, the adsorbed dust enters the filter box 11 of the filter assembly 6 via the dust collection component 5. The system has two filter boxes 11, but only one set is kept in the open state during operation, i.e., the first electric valve 14 and the second electric valve 26 at both ends of this set are open, while the other set is closed. After entering the open filter box 11, the dust is trapped and filtered by the internal filter screen 12 to ensure the cleanliness of the exhaust gas. As dust continues to accumulate, the filter screen 12 gradually becomes clogged, increasing the system's flow resistance. At this point, the flow sensor 17 monitors the outlet flow of the dust collection pump 16 in real time. When the detected flow rate falls below a set threshold, the system automatically switches the working channel, closing the first electric valve 14 and the second electric valve 26 corresponding to the original working filter box 11, while simultaneously opening the valve of the other filter box 11, allowing the dust to be transferred to the standby filter box 11 for continued efficient filtration. This dual-channel alternating operation design ensures stable filtration performance during long-term continuous operation. For filter box 11 switched to non-working state, manual cleaning and maintenance can be performed: remove the fixing bolts between its top sealing cover 13 and filter box 11, lift the sealing cover 13 upward by handle 24, and the filter screen 12 can be pulled out from the slot 25 in the box body. After cleaning, reverse the operation to install and reset it for the next cycle of use.

[0047] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A comminution apparatus for mining, characterised in that, The utility model provides a kind of dust suction device for powdering box, including the pulverization box (1), the top of the pulverization box (1) is provided with feed end (3), the bottom of the pulverization box (1) is fixedly installed with support frame (4), the bottom of the pulverization box (1) is fixedly installed with discharge cover (8), the inside of the pulverization box (1) is rotatably installed with symmetrically distributed pulverization roller (9), the front surface of the outer surface of the pulverization box (1) is fixedly installed with pulverization motor (2), the driving end of the pulverization motor (2) is connected with pulverization roller (9), one side of the pulverization box (1) is provided with dust suction assembly (5), the back of the support frame (4) is fixedly installed with fixed frame (7), the top of the fixed frame (7) is provided with filter assembly (6); The dust suction assembly (5) includes a circular dust suction cover (23) fixedly installed at the top end of the feed end (3) and a rectangular dust suction cover (20) above one end of the discharge cover (8), a plurality of evenly distributed pipes (22) are fixedly installed on the outer surface of the rectangular dust suction cover (20), the pipes (22) are in communication with the inside of the circular dust suction cover (23) at multiple points, one end of each pipe (22) is fixedly installed with a conduit (21), a plurality of upper sub-pipes (18) are equidistantly fixedly installed on the lower side of the outer wall of the conduit (21), a plurality of lower sub-pipes (19) are equidistantly fixedly installed on the top of the rectangular dust suction cover (20), a main pipe (10) is fixedly installed between the opposite ends of the upper sub-pipes (18) and the lower sub-pipes (19), and a dust suction pump (16) is arranged on one side of the top of the fixed frame (7).

2. A comminution device for mining according to claim 1, characterised in that, The filter assembly (6) includes two filter boxes (11) fixedly installed on the top of the fixed frame (7), one end of the main pipe (10) is fixedly connected with a three-way pipe (27), the two ends of the three-way pipe (27) are fixedly connected with and in communication with one side of each filter box (11), the other side of each filter box (11) is fixedly connected with an output pipe (15), one end of each output pipe (15) is fixedly connected with the input end of the dust suction pump (16), the three-way pipe (27) is provided with symmetrically distributed second electric valves (26), each output pipe (15) is provided with a first electric valve (14), and the inside of each filter box (11) is provided with a plurality of filter screens (12).

3. A comminution device for mining according to claim 2, characterised in that, The top of each filter box (11) is provided with a plurality of insertion grooves (25) corresponding in position and number to the filter screens (12), each insertion groove (25) is slidably inserted with a filter screen (12), the top of each filter screen (12) is fixedly installed with a sealing cover plate (13), and the sealing cover plate (13) is fixedly connected with the top of the filter box (11) by bolts.

4. A comminution device for mining according to claim 3, characterised in that, The top of the sealing cover plate (13) is fixedly installed with a handle (24).

5. The comminution apparatus for mining according to claim 1, characterized by, The output end of the dust suction pump (16) is provided with a flow sensor (17).

6. The comminution apparatus for mining according to claim 1, characterized by, The ports of the rectangular dust suction cover (20) and the circular dust suction cover (23) are fixedly installed with barrier nets.

7. The comminution apparatus for mining according to claim 3, wherein The bottom of the sealing cover plate (13) is bonded with a sealing gasket.

8. The comminution apparatus for mining according to claim 2, wherein The number of the filter screen plates (12) in each group is three, and the mesh diameters of the three filter screen plates (12) gradually decrease from the three-way pipes (27) to the output pipes (15).

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