A mine with a crusher

Abstract

The application relates to a crusher for mine exploitation, in which crushed stones formed by crushing of ores by the crusher can enter a screening module through a discharge port, and under the screening effect of a screening net, the crushed stones meeting the particle size requirement pass through the screening net and are discharged from a qualified product discharge port, while the crushed stones with particle sizes exceeding the preset standard leak out from the gap between the shell and the screening net and are discharged from an unqualified discharge port, so that the crushed stones are effectively screened, and meanwhile, a pressure sensor can realize real-time monitoring on the working state of a compression spring, wherein when the compression spring moves to a specified position and the crushed stones not meeting the standard on the screening net leak out, the measurement value of the pressure sensor reaches a critical standard; when the data of the pressure sensor frequently reaches or is at the critical standard within a short time, it is indicated that the working state of the crusher has a problem, and shutdown treatment needs to be carried out in time.

Description

A type of mine uses crushers Technical Field

[0001] The present invention relates to a crusher, and more particularly to a crusher used in mining operations in the field of crushing equipment. Background Technology

[0002] Mining sand making technology refers to the process of processing raw materials such as quarryed stones and ores into sand and gravel that meet the needs of construction and industry through a series of treatments. The mining sand making process can be adjusted according to factors such as the properties of the raw materials, particle size, and production volume requirements to meet the needs of different customers. At the same time, the mining sand making process also needs to consider environmental protection and energy conservation factors to achieve sustainable development.

[0003] The specification of invention patent CN202211503696.0 discloses a high-efficiency feeding mechanism for a mining crusher. When there are stones larger than the standard size, the mechanism presses the offset control group and the pressing separation group, thereby driving the main screen group to rotate and opening the lower clamping ring, thus transferring and discharging the large-sized stones, thereby improving crushing efficiency and protecting the machine body.

[0004] The invention patent CN201610377199.9 discloses a screening-type transfer crusher, which integrates crushing and transfer into one unit and has a screening function, with a compact structure. This equipment uses a motor, coupler, and reducer as power sources, and is composed of double toothed rollers, crushing beams, and transfer machine head sprocket assembly to form a device with screening and crushing functions, effectively controlling the output particle size, reducing space, and effectively preventing over-crushing conditions.

[0005] In the mining process, raw materials need to be crushed according to standards. In existing technologies, raw materials entering the crusher are usually screened to ensure the normal operation of the crusher. However, existing crushers cannot monitor the output particle size in real time and cannot guarantee the working status of the crusher. Once the crusher malfunctions, it is very easy to produce a large number of products with non-standard particle size. Summary of the Invention

[0006] The technical problem that this invention aims to solve in view of the above-mentioned prior art is that existing crushers cannot monitor the output particle size in real time, and cannot guarantee the working status of the crusher. Once the crusher malfunctions, it is very easy to produce a large number of products with non-standard particle size.

[0007] To solve the above problems, the present invention provides a crusher for mining operations, including a crusher body, a feed port and a discharge port fixedly connected to the crusher body, and a screening module fixedly connected to the end of the discharge port away from the crusher body.

[0008] The screening module includes an outer shell, which is shaped like a conical hat in the middle. The outer shell is connected to the discharge port. A qualified product discharge port is cut at the lower end of the outer shell, and a non-qualified product discharge port is cut on the side wall of the outer shell. An installation platform is set inside the qualified product discharge port. Multiple connecting arms are fixedly connected to the inner wall of the qualified product discharge port. A guide rod and a pressure sensor are fixedly connected to the upper end of the installation platform. The pressure sensor is sleeved on the outside of the guide rod. A screening screen is slidably connected to the outside of the guide rod. A compression spring is connected between the screening screen and the pressure sensor. The compression spring is sleeved on the outside of the guide rod. When the screening screen is at the top of the guide rod, it is in contact with the inner wall of the outer shell. When the screening screen is at the highest point, the compression spring is in a compressed state.

[0009] In the above-mentioned mining operation using crushers, it is possible to discharge crushed stone that meets the size standard from the qualified product outlet, while crushed stone that does not meet the size standard is discharged from the unqualified product outlet, thus effectively screening the crushed stone.

[0010] As a further improvement of this application, a bellows is sleeved on the outside of the compression spring. The two ends of the bellows are fixedly connected to the screening screen and the pressure sensor, respectively. The bellows provides effective protection for the compression spring, making it less susceptible to damage from gravel.

[0011] As a further improvement of this application, an annular limiting plate is fixedly connected to the bottom plate of the outer shell, and the annular limiting plate is located between the qualified product outlet and the unqualified product outlet. On the one hand, the annular limiting plate can protect the compression spring to a certain extent, so that the compression spring is not prone to excessive deformation and is not likely to affect the normal operation of the compression spring. On the other hand, the annular limiting plate can also separate the areas of the qualified product outlet and the unqualified product outlet, so as to avoid the cross discharge of qualified and unqualified crushed stone from the qualified product outlet and the unqualified product outlet, and is not likely to affect the screening effect.

[0012] As a further improvement of this application, the height of the unqualified discharge port is 1.5-2 times the diameter of the crushed stone particles that meet the standard size after being crushed by the crusher, so that the crushed stone is less likely to get stuck and blocked at the unqualified discharge port.

[0013] As another improvement of this application, a buffer module is fixedly connected between the discharge port one and the screening module. The buffer module includes a housing two, and the discharge port two and the screening module are connected through the housing two.

[0014] Both inner walls of the outer shell have movable grooves. Buffer plates are slidably connected in both movable grooves. Each buffer plate includes an electromagnetic block that matches the movable groove. Adjacent electromagnetic blocks repel each other when energized. A buffer panel is fixedly connected to the end of the electromagnetic block away from the inner wall of the outer shell. The buffer plates in the two movable grooves are arranged in an alternating pattern. A discharge port is carved on the bottom plate of the outer shell, which is connected to the screening module. When large-sized gravel blocks the space between two adjacent buffer plates, excessive gravel accumulates on the buffer plates, causing the buffer plates to shift downwards and increase the distance between the buffer plates and the upper buffer plate. This allows large-sized gravel to roll off smoothly, preventing blockages within the buffer plates.

[0015] As a further improvement to this application, a sloping groove is chiseled on the bottom plate of the second outer shell. The sloping groove makes the bottom plate of the second outer shell appear to be low in the middle and high at both ends, so that the crushed stone can be concentrated and transferred from the second discharge port.

[0016] As a further improvement to this application, a limiting rod is fixedly connected inside the movable groove, and a limiting block matching the movable groove is fixedly connected to the upper end of the limiting rod, which can restrict the sliding of the buffer plate and make it difficult for the buffer plate to slide out of the movable groove.

[0017] In summary, in this application, the crushed stone formed by the ore crusher enters the screening module through the discharge port. Under the screening action of the screening screen, the crushed stone that meets the particle size requirements passes through the screening screen and is discharged from the qualified product discharge port. The crushed stone that exceeds the preset standard remains on the screening screen and rolls down along the surface of the screening screen, moving to the connection between the screening screen and the outer shell. As the number of non-standard crushed stones on the screening screen increases, the pressure on the compression spring increases until the compression spring is compressed and deformed. At this time, the crushed stone that does not meet the size standard will leak out from the gap between the outer shell and the screening screen and be discharged from the non-qualified discharge port. This achieves the goal of discharging crushed stone that meets the size standard from the qualified product discharge port and crushed stone that does not meet the size standard from the non-qualified discharge port, thus effectively screening the crushed stone.

[0018] Meanwhile, the pressure sensor can monitor the working status of the compression spring in real time. When the compression spring moves to a designated position and leaks non-standard crushed stone from the screening screen, the pressure sensor's measurement value will reach the critical standard. The PLC will monitor the pressure sensor's measurement data in real time. When the pressure sensor's data frequently reaches or is at the critical standard in a short period of time, it indicates that a large amount of non-standard crushed stone has appeared during the current working period, and there is a problem with the crusher's working status, requiring immediate shutdown. Attached Figure Description

[0019] Figure 1 is a structural schematic diagram of a mining crusher according to the first embodiment of this application;

[0020] Figure 2 is a bottom view of the screening module according to the first embodiment of this application;

[0021] Figure 3 is a front view of the screening module according to the first embodiment of this application;

[0022] Figure 4 is a front sectional view of the screening module according to the first embodiment of this application;

[0023] Figure 5 is a schematic diagram of the operation of the screening module in the first embodiment of this application;

[0024] Figure 6 is a structural schematic diagram of a crusher used in mining according to the second embodiment of this application;

[0025] Figure 7 is a schematic diagram of the buffer module according to the second embodiment of this application;

[0026] Figure 8 is a cross-sectional structural diagram of the buffer module according to the second embodiment of this application;

[0027] Figure 9 is a schematic diagram of the structure of the buffer plate according to the second embodiment of this application;

[0028] Figure 10 is a schematic diagram of the structure of the buffer plate in the second embodiment of this application when it is blocked.

[0029] Explanation of the labels in the diagram:

[0030] 1. Crusher; 101. Crusher body; 102. Feed port; 103. Discharge port one; 2. Screening module; 201. Outer shell one; 202. Qualified product discharge port; 203. Unqualified product discharge port; 204. Mounting platform; 205. Guide rod; 206. Screening screen; 207. Compression spring; 208. Corrugated pipe; 209. Pressure sensor; 210. Annular limit plate; 3. Buffer module; 301. Outer shell two; 302. Movable groove; 303. Inclined groove; 304. Discharge port two; 305. Limiting rod; 306. Limiting block; 4. Buffer plate; 401. Buffer panel; 402. Electromagnetic block. Detailed Implementation

[0031] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0032] First implementation method:

[0033] Figure 1-4 shows a crusher used in mining, including a crusher 1. The crusher 1 includes a crusher body 101. A feed port 102 and a discharge port 103 are fixedly connected to the crusher body 101. A screening module 2 is fixedly connected to the end of the discharge port 103 away from the crusher body 101.

[0034] The screening module 2 includes a housing 201, which is shaped like a conical hat in the middle. The housing 201 is connected to the discharge port 103. A qualified product discharge port 202 is cut out at the lower end of the housing 201, and a non-qualified product discharge port 203 is cut out on the side wall of the housing 201. An installation platform 204 is provided inside the qualified product discharge port 202. Multiple connecting arms are fixedly connected to the inner wall of the installation platform 204 and the qualified product discharge port 202. A guide rod 20 is fixedly connected to the upper end of the installation platform 204. 5 and pressure sensor 209, with pressure sensor 209 sleeved on the outside of guide rod 205. Screening screen 206 is slidably connected to the outside of guide rod 205. Compression spring 207 is connected between screening screen 206 and pressure sensor 209, and compression spring 207 is sleeved on the outside of guide rod 205. When screening screen 206 is at the uppermost end of guide rod 205, it is in contact with the inner wall of outer shell 201. When screening screen 206 is at the highest point, compression spring 207 is in a compressed state.

[0035] Please refer to Figure 5. In this application, the crushed stone formed by the crusher 1 enters the screening module 2 through the discharge port 103. Under the screening action of the screening screen 206, the crushed stone that meets the particle size requirements passes through the screening screen 206 and is discharged from the qualified product discharge port 202. The crushed stone that exceeds the preset standard remains on the screening screen 206 and rolls down along the upper surface of the screening screen 206, moving to the connection between the screening screen 206 and the outer shell 201. As the number of non-standard crushed stones on the screening screen 206 increases, the pressure on the compression spring 207 increases until the compression spring 207 is compressed and deformed. At this time, the crushed stone that does not meet the size standard will leak out from the gap between the outer shell 201 and the screening screen 206 and be discharged from the unqualified discharge port 203. This realizes that the crushed stone that meets the size standard is discharged from the qualified product discharge port 202, while the crushed stone that does not meet the size standard is discharged from the unqualified discharge port 203, thus effectively screening the crushed stone.

[0036] In particular, the normal use of the pressure sensor 209 in this application also requires a PLC control terminal. The PLC control terminal can monitor the working status of the crusher 1 and the pressure sensor 209, and issue an alarm in a timely manner after the pressure sensor 209 detects abnormal data, so as to contact technicians for timely maintenance. This is a well-known technology in the art, so it is not disclosed in detail in this application. Those skilled in the art know how to build the corresponding circuit between the crusher 1, the pressure sensor 209 and the PLC control terminal.

[0037] The pressure sensor 209 can monitor the working status of the compression spring 207 in real time. When the compression spring 207 moves to a designated position and leaks non-standard crushed stone from the screening screen 206, the measured value of the pressure sensor 209 will reach the critical standard. The PLC will monitor the measurement data of the pressure sensor 209 in real time. When the data of the pressure sensor 209 frequently reaches or is at the critical standard in a short period of time, it indicates that a large amount of non-standard crushed stone has appeared in the current working period, and there is a problem with the working status of the crusher 1, which needs to be stopped in time.

[0038] Please refer to Figure 2-4. A corrugated tube 208 is sleeved on the outside of the compression spring 207. The two ends of the corrugated tube 208 are fixedly connected to the screening screen 206 and the pressure sensor 209, respectively. The corrugated tube 208 effectively protects the compression spring 207, making it less susceptible to damage from gravel. An annular limiting plate 210 is fixedly connected to the bottom plate of the outer casing 201. The annular limiting plate 210 is located between the qualified product outlet 202 and the unqualified product outlet 203. On the one hand, the annular limiting plate 210 can protect the compression spring 207 to a certain extent, making it less likely to undergo excessive deformation and affect its normal operation. On the other hand, the annular limiting plate 210 can also separate the areas of the qualified product outlet 202 and the unqualified product outlet 203, preventing qualified and unqualified gravel from being discharged from the qualified product outlet 202 and the unqualified product outlet 203, thus avoiding affecting the screening effect.

[0039] The height of the unqualified discharge port 203 is twice the diameter of the crushed stone particles that meet the standard size after being crushed by the crusher 1, so that the crushed stone is less likely to get stuck and blocked in the unqualified discharge port 203.

[0040] Second implementation method:

[0041] Figure 6-9 shows a crusher used in mining. A buffer module 3 is fixedly connected between the discharge port 103 and the screening module 2. The buffer module 3 includes a second outer shell 301. The discharge port 103 and the screening module 2 are connected through the second outer shell 301.

[0042] On the inner walls of the outer casing 301, there are movable grooves 302. Buffer plates 4 are slidably connected in both movable grooves 302. Each buffer plate 4 includes an electromagnetic block 402 that matches the movable groove 302. Adjacent electromagnetic blocks 402 repel each other when energized. A buffer panel 401 is fixedly connected to the end of the electromagnetic block 402 away from the inner wall of the outer casing 301. The buffer plates 4 in the two movable grooves 302 are arranged alternately. A discharge port 304 is carved on the bottom plate of the outer casing 301. The discharge port 304 is connected to the screening module 2.

[0043] Please refer to Figure 10. In this application, after the crusher 1 starts working, the electromagnetic block 402 is activated, causing multiple buffer plates 4 to move away from each other. The gap between two adjacent buffer plates 4 is more than twice that of standard crushed stone, and the impact force generated by the crushed stone impact does not easily affect the gap between two adjacent buffer plates 4. This reduces the initial velocity of the crushed stone falling on the screening screen 206, reduces the impact of the falling stone impact on the detection result of the pressure sensor 209, and increases the accuracy of screening. When the gap between two adjacent buffer plates 4 is blocked by large-sized crushed stone, excessive crushed stone will accumulate on the buffer plate 4, causing the position of the buffer plate 4 to shift downward and increase the distance between the buffer plate 4 and the upper buffer plate 4, so that large-sized crushed stone can roll off smoothly and is less likely to form a blockage in the buffer plate 4.

[0044] Please refer to Figure 6-9. An inclined groove 303 is carved on the bottom plate of the outer shell 2 301. The inclined groove 303 makes the bottom plate of the outer shell 2 301 present a state of being low in the middle and high at both ends, so that the crushed stone can be concentrated and transferred from the discharge port 2 304.

[0045] A limiting rod 305 is fixedly connected inside the movable groove 302. A limiting block 306 matching the movable groove 302 is fixedly connected to the upper end of the limiting rod 305, which can restrict the sliding of the buffer plate 4, making it difficult for the buffer plate 4 to slide out of the movable groove 302.

[0046] The buffer module 3 in this embodiment is an optional accessory. It can reduce the impact of falling rocks on the detection results of the pressure sensor 209 and increase the accuracy of screening. At the same time, through the cooperation between multiple buffer plates 4, when large-sized gravel blocks the space between two adjacent buffer plates 4, excessive gravel will accumulate on the buffer plate 4, causing the position of the buffer plate 4 to drop and increase. The distance between the buffer plate 4 and the upper buffer plate 4 allows large-sized gravel to roll off smoothly and is less likely to form a blockage in the buffer plate 4.

[0047] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A crusher for mining operations, characterized in that: The system includes a crusher (1), which includes a crusher body (101). A feed port (102) and a discharge port (103) are fixedly connected to the crusher body (101). A screening module (2) is fixedly connected to the end of the discharge port (103) away from the crusher body (101). The screening module (2) includes a shell (201). The middle part of the shell (201) is shaped like a conical hat. The shell (201) is connected to the discharge port (103). A qualified product discharge port (202) is chiseled at the lower end of the shell (201). An unqualified product discharge port (203) is chiseled on the side wall of the shell (201). An installation platform (204) is provided inside the qualified product discharge port (202). Multiple connecting arms are fixedly connected to the inner wall of the mounting platform (204) and the qualified product outlet (202). A guide rod (205) and a pressure sensor (209) are fixedly connected to the upper end of the mounting platform (204). The pressure sensor (209) is sleeved on the outside of the guide rod (205). A screening screen (206) is slidably connected to the outside of the guide rod (205). A compression spring (207) is connected between the screening screen (206) and the pressure sensor (209). The compression spring (207) is sleeved on the outside of the guide rod (205). When the screening screen (206) is at the uppermost end of the guide rod (205), it is in contact with the inner wall of the outer shell (201). When the screening screen (206) is at the highest point, the compression spring (207) is in a compressed state.

2. A crusher for mining operations according to claim 1, characterized in that: The compression spring (207) is fitted with a bellows (208) on its outer side, and the two ends of the bellows (208) are fixedly connected to the screening screen (206) and the pressure sensor (209) respectively.

3. A crusher for mining operations according to claim 1, characterized in that: An annular limiting plate (210) is fixedly connected to the bottom plate of the outer shell (201), and the annular limiting plate (210) is located between the qualified product outlet (202) and the unqualified product outlet (203).

4. A crusher for mining operations according to claim 1, characterized in that: The height of the unqualified discharge port (203) is 1.5-2 times the size of the crushed stone particles that have been crushed by the crusher (1) and meet the standard size.

5. A crusher for mining operations according to claim 1, characterized in that: A buffer module (3) is fixedly connected between the discharge port 1 (103) and the screening module (2). The buffer module (3) includes a second outer shell (301). The discharge port 1 (103) and the screening module (2) are connected through the second outer shell (301). Movable grooves (302) are carved on the inner walls of the second outer shell (301). Buffer plates (4) are slidably connected in the two movable grooves (302). The buffer plates (4) include electromagnetic blocks (402) that match the movable grooves (302). The adjacent electromagnetic blocks (402) repel each other when energized. A buffer panel (401) is fixedly connected to the end of the electromagnetic block (402) away from the inner wall of the second outer shell (301). The buffer plates (4) in the two movable grooves (302) are arranged alternately. A discharge port 2 (304) is carved on the bottom plate of the second outer shell (301). The discharge port 2 (304) is connected to the screening module (2).

6. A crusher for mining operations according to claim 5, characterized in that: The bottom plate of the second outer shell (301) has a sloping groove (303) which makes the bottom plate of the second outer shell (301) appear to be low in the middle and high at both ends.

7. A crusher for mining operations according to claim 5, characterized in that: A limiting rod (305) is fixedly connected inside the movable groove (302), and a limiting block (306) matching the movable groove (302) is fixedly connected to the upper end of the limiting rod (305).

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