Special anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machine

Abstract

The invention provides a special anti-blocking crushing system for a high-moisture and high-viscosity coal mechanical sampling machine, and relates to the technical field of coal mining crushing, the inner wall of a crushing inner container is made of wear-resistant alloy steel, the adhesion effect of coal with too high humidity can be greatly reduced, the maintenance frequency of the inner wall is reduced, the minimum width of an inner channel is 400 mm, and the service life of the inner channel is prolonged. The conical feeding port can ensure that materials cannot be blocked due to narrow passages in the crushing process, the diameter of the feeding port is 500mm, the large-diameter design can reduce the resistance of the materials when the materials enter a crushing cavity, experimental data shows that compared with a traditional 300mm feeding port, the blocking rate is reduced by 40%, the conical degree of the conical feeding port is 15 degrees, the materials can be guided to enter a crushing area smoothly, and the service life of the materials is prolonged. The inner wall of the feeding port and the inner wall of the discharging port are both coated with the macromolecule anti-sticking materials, the adhesion performance of the macromolecule anti-sticking materials is reduced by 90%, it means that coal is not prone to adhering to the wall when passing through the feeding port and the discharging port, and therefore the possibility of blocking is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining and crushing, and particularly to a special anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machines. Background Art

[0002] As an important energy resource, during the processes of coal mining, transportation, and use, it is necessary to accurately detect its quality to determine indicators such as calorific value, ash content, moisture content, and sulfur content of coal. A mechanical sampling machine is a key device for coal sample collection, which can ensure that the collected samples are representative and provide a reliable basis for subsequent chemical analysis.

[0003] During the actual sampling process, the moisture content and viscosity of coal will have a great impact on the operation of the sampling machine. High-moisture coal is prone to forming a muddy state and has a relatively high viscosity. During the crushing process, this coal is likely to adhere to the inner wall, hammer head, screen and other components of the crushing device, resulting in material accumulation, and then blocking the crushing cavity, making the crushing device unable to work properly. This not only affects the sampling efficiency but also may lead to inaccurate sampling results. Summary of the Invention

[0004] The purpose of the present invention is to provide a special anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machines to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A special anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machines, including a fixed base and an anti-adhesion crushing mechanism. The anti-adhesion crushing mechanism is arranged on the upper side of the fixed base. The anti-adhesion crushing mechanism includes a fixed support assembly, an anti-adhesion auxiliary crushing assembly, a sealing and dust-proof assembly, a driving and crushing assembly, and a feeding assembly. The fixed support assembly is arranged on the upper side of the fixed base. The anti-adhesion auxiliary crushing assembly is arranged on the upper side of the fixed support assembly. The sealing and dust-proof assembly is arranged on one side of the anti-adhesion auxiliary crushing assembly. The driving and crushing assembly is arranged inside the anti-adhesion auxiliary crushing assembly. The feeding assembly is arranged on the upper side of the anti-adhesion auxiliary crushing assembly.

[0006] Preferably, the fixed support assembly includes a support base and an auxiliary base for the driving device. The support base is threadedly connected to the upper side of the fixed base, and the auxiliary base for the driving device is welded and fixed to the upper side of the support base.

[0007] Preferably, the anti-adhesion auxiliary crushing assembly includes a protective housing, a crushing inner liner, an auxiliary crushing base, and a crushing hammer head. The upper side of the support base is threadedly connected to the protective housing, the inner side of the protective housing is threadedly connected to the crushing inner liner, the lower part of the inner side of the crushing inner liner is welded and fixed to the auxiliary crushing base, and the front side of the auxiliary crushing base is fixedly connected to the crushing hammer head.

[0008] Preferably, the sealing and dust-proof assembly includes a dust-proof inner liner and a cleaning observation window. One side of the protective housing is threadedly connected to the dust-proof inner liner, and the surface of the dust-proof inner liner is movably connected to the cleaning observation window.

[0009] Preferably, the driving and crushing assembly includes a rotary driving module, a set screw, a driving rod support base, a driving rotary shaft, and a crushing wheel. The rotary driving module is arranged on the upper side of the driving device auxiliary base. The rotary driving module is fixedly connected to the driving device auxiliary base by the set screw. One side of the rotary driving module is fixedly connected to the driving rotary shaft, and one side of the driving rotary shaft is fixedly sleeved with the crushing wheel.

[0010] Preferably, the feeding assembly includes a sealing and fastening base and a conical feeding port. The upper side of the protective housing is threadedly connected to the sealing and fastening base, and the upper side of the sealing and fastening base is provided with a conical feeding port.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the setting of the anti-adhesion crushing mechanism, during use, the inner wall material of the crushing inner liner is made of wear-resistant alloy steel. During the crushing process, it can greatly reduce the adhesion effect of coal with too high humidity, thereby reducing the number of maintenance times for the inner wall. The minimum width of its internal channel is 400 mm, which can ensure that the material will not be blocked due to the narrow aisle during crushing. The diameter of the feeding port is 500 mm, and the large-diameter design can reduce the resistance of the material when entering the crushing chamber. According to experimental data, compared with the traditional 300-mm feeding port, the blockage rate is reduced by 40%. Moreover, the taper of the conical feeding port is 15°, which helps to guide the material to smoothly enter the crushing area and reduce the wall-hanging phenomenon. Both the inner walls of the feeding port and the discharging port are coated with a high-molecular anti-adhesion material, and the adhesion performance of this high-molecular anti-adhesion material is reduced by 90%. This means that coal is less likely to adhere to the wall when passing through the feeding port and the discharging port, thus greatly reducing the possibility of blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall external structure of the present invention; Figure 2 is a schematic diagram of the overall right side and internal crushing structure of the present invention; Figure 3 is a schematic diagram of the overall top view and internal structure of the present invention; Reference numerals in the figure: 1, fixed base; 2, anti-adhesion crushing and pulverizing mechanism; 21, fixed support assembly; 211, support base; 212, auxiliary base for driving device; 22, anti-adhesion auxiliary crushing assembly; 221, protective housing; 222, crushing inner liner; 223, auxiliary crushing base; 224, crushing hammer head; 23, sealing and dust-proof assembly; 231, dust-proof inner liner; 232, cleaning observation window; 24, driving and crushing assembly; 241, rotary driving module; 242, set screw; 243, driving rod support base; 244, driving rotary shaft; 245, crushing wheel; 25, feeding assembly; 251, sealing and fastening base; 252, conical feeding port. Detailed implementation mode

[0013] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0014] Please refer to Figures 1-3 As shown in the figure, the present invention provides a technical solution: a special anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machines, including a fixed base 1 and an anti-adhesion crushing and pulverizing mechanism 2. The anti-adhesion crushing and pulverizing mechanism 2 is arranged on the upper side of the fixed base 1; The anti-adhesion crushing and pulverizing mechanism 2 includes a fixed support assembly 21, an anti-adhesion auxiliary crushing assembly 22, a sealing and dust-proof assembly 23, a driving and crushing assembly 24 and a feeding assembly 25. The fixed support assembly 21 is arranged on the upper side of the fixed base 1, the anti-adhesion auxiliary crushing assembly 22 is arranged on the upper side of the fixed support assembly 21, the sealing and dust-proof assembly 23 is arranged on one side of the anti-adhesion auxiliary crushing assembly 22, the driving and crushing assembly 24 is arranged inside the anti-adhesion auxiliary crushing assembly 22, and the feeding assembly 25 is arranged on the upper side of the anti-adhesion auxiliary crushing assembly 22.

[0015] Furthermore, the fixed support assembly 21 includes a support base 211 and an auxiliary base 212 for the driving device. The support base 211 is threadedly connected to the upper side of the fixed base 1, and the auxiliary base 212 for the driving device is welded and fixed to the upper side of the support base 211.

[0016] Furthermore, the anti-adhesion auxiliary crushing component 22 includes a protective housing 221, a crushing inner liner 222, an auxiliary crushing base 223, and a crushing hammer head 224. The upper side of the support base 211 is threadedly connected to the protective housing 221. The inner side of the protective housing 221 is threadedly connected to the crushing inner liner 222. The lower part of the inner side of the crushing inner liner 222 is welded and fixed to the auxiliary crushing base 223. The front side of the auxiliary crushing base 223 is fixedly connected to the crushing hammer head 224. And the anti-adhesion auxiliary crushing component 22 is symmetrically arranged with the crushing wheel 245 as the center. And the inner wall material of the crushing inner liner 222 is made of wear-resistant alloy steel. During the crushing process, it can greatly reduce the adhesion effect of coal with too high humidity, thereby reducing the maintenance frequency of the inner wall. The minimum width of its internal passage is 400 mm, which can ensure that the material will not be blocked due to the narrow passage during crushing. Experiments have proved that at this width, the material passing speed is increased by 50%. The internal crushing hammer head 224 is made of high manganese steel, and the hardness is as high as HRC58 - 62 after heat treatment. When cooperating with the crushing wheel 245 for crushing, it can effectively improve the crushing efficiency. Experimental data shows that the crushing efficiency is increased by 25% compared with traditional crushers.

[0017] Furthermore, the sealing and dust-proof component 23 includes a dust-proof inner liner 231 and a cleaning observation window 232. One side of the protective housing 221 is threadedly connected to the dust-proof inner liner 231. The surface of the dust-proof inner liner 231 is movably connected to the cleaning observation window 232. The dust-proof inner liner 231 adopts a double-layer sealing structure. The inner layer is a fluororubber sealing ring, and the outer layer is a labyrinth sealing cover. Experiments show that when operating for 8 hours in an environment with a dust concentration of 1000 mg / m³, the dust leakage amount is less than 5 mg. And through the setting of the cleaning observation window 232, it is convenient for operators to carry out maintenance and cleaning operations.

[0018] Furthermore, the driving and crushing component 24 includes a rotary driving module 241, a set screw 242, a driving rod support base 243, a driving rotary shaft 244, and a crushing wheel 245. The rotary driving module 241 is arranged on the upper side of the driving device auxiliary base 212. The rotary driving module 241 is threadedly and fixedly connected to the driving device auxiliary base 212 through the set screw 242. One side of the rotary driving module 241 is fixedly connected to the driving rotary shaft 244. One side of the driving rotary shaft 244 is fixedly sleeved with the crushing wheel 245. The sieve plate design is cancelled below the driving and crushing component 24. Through the non-sieve plate design, the sieve hole blockage can be avoided when the material is crushed and discharged. According to the long-term operation data, its continuous working time is increased by 50%. It can be Figure III seen that the surface of the crushing wheel 245 is composed of multiple crushing devices, and the gap between each crushing device and the adjacent crushing hammer head 224 is tangent. During the crushing process, it can accelerate the crushing work of the material.

[0019] Furthermore, the feeding assembly 25 includes a sealed fastening base 251 and a conical feeding port 252. The upper side of the protective housing 221 is threadedly connected to the sealed fastening base 251. The upper side of the sealed fastening base 251 is provided with a conical feeding port 252. The inner wall of the conical feeding port 252 is made of a special polymer anti-sticking material as the inner wall material. The wear resistance of this material is more than 3 times that of ordinary materials. This means that during long-term and high-intensity coal crushing, it can maintain a longer service life, reduce the performance degradation and blockage risk caused by wear. In addition to wear resistance, the impact resistance of this material has also increased by 300%. This enables it to better maintain its shape and stability when facing sudden impacts or pressure changes, avoiding blockages caused thereby. More importantly, the adhesion performance of this polymer anti-sticking material has been reduced by 90%. This means that coal is less likely to adhere to the wall when passing through the feeding port and the discharging port, thus greatly reducing the possibility of blockage. The diameter of the feeding port is 500 mm. The large-diameter design can reduce the resistance of the material when entering the crushing chamber. According to experimental data, compared with the traditional 300-mm feeding port, the blockage rate has been reduced by 40%. Moreover, the taper of the conical feeding port 252 is 15°, which helps to guide the material into the crushing area smoothly and reduce the wall-hanging phenomenon.

[0020] Working principle: First, install the special anti-blocking crushing system for high-moisture and high-viscosity coal mechanical samplers at the designated use location. During use, the sampled coal enters the interior of the crushing device through the upper conical feeding port 252. The inner wall of the feeding port is evenly coated with a polymer anti-sticking material. The adhesion performance of this polymer anti-sticking material has been reduced by 90%, preventing the material from sticking to the inner wall of the feeding port. By increasing the setting of the feeding port, the blockage rate can be reduced and blockages can be prevented. As Figure III can be seen, the surface of the crushing wheel 245 is composed of multiple crushing devices, and the gap between each crushing device and the adjacent crushing hammer head 224 is tangent. During the crushing process, it can accelerate the crushing work of the material. Moreover, the inner crushing hammer head 224 and the crushing wheel 245 are both made of high manganese steel. After heat treatment, the hardness is as high as HRC58 - 62. When cooperating with the crushing wheel 245 for crushing, it can effectively improve the crushing efficiency. Experimental data shows that the crushing efficiency is 25% higher than that of traditional crushers. The screen plate design is cancelled at the lower end of the crushing device. Through the non-screen plate design, the screen holes can be avoided from being blocked when the material is crushed and discharged. According to long-term operation data, its continuous working time has increased by 50%, enabling the crushed material to be discharged smoothly and reducing the adhesion problem. In this way, the use process of the special anti-blocking crushing system for high-moisture and high-viscosity coal mechanical samplers is completed.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special anti-blocking crushing system for a high-moisture and high-viscosity coal mechanical sampler, comprising a fixed base (1) and an anti-adhesion pulverizing crushing mechanism (2), characterized in that: An anti-adhesion pulverizing mechanism (2) is provided on the upper side of the fixed base (1); The anti-adhesion pulverizing crushing mechanism (2) comprises a fixed support component (21), an anti-adhesion auxiliary crushing component (22), a sealing dustproof component (23), a driving crushing component (24) and a feeding component (25); the fixed support component (21) is arranged on the upper side of the fixed base (1); the anti-adhesion auxiliary crushing component (22) is arranged on the upper side of the fixed support component (21); a sealing dustproof component (23) is arranged on one side of the anti-adhesion auxiliary crushing component (22); a driving crushing component (24) is arranged on the inner side of the anti-adhesion auxiliary crushing component (22); and a feeding component (25) is arranged on the upper side of the anti-adhesion auxiliary crushing component (22).

2. The anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machine according to claim 1 is characterized in that: The fixed support assembly (21) comprises a support base (211) and a drive device auxiliary base (212); the upper side of the fixed base (1) is threadedly connected to the support base (211); and the upper side of the support base (211) is welded and fixed to the drive device auxiliary base (212).

3. The anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machine according to claim 2 is characterized in that: The anti-adhesion auxiliary crushing component (22) comprises a protective shell (221), a crushing liner (222), an auxiliary crushing base (223) and a crushing hammer head (224); the upper side of the support base (211) is threadedly connected to the protective shell (221); the inner side of the protective shell (221) is threadedly connected to the crushing liner (222); the lower inner side of the crushing liner (222) is welded and fixed with the auxiliary crushing base (223); and the front side of the auxiliary crushing base (223) is fixedly connected to the crushing hammer head (224).

4. The anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machine according to claim 3 is characterized in that: The sealing dustproof component (23) comprises a dustproof inner liner (231) and a clean observation window (232); one side of the protective outer shell (221) is threadedly connected to the dustproof inner liner (231); and the surface of the dustproof inner liner (231) is movably connected to the clean observation window (232).

5. The anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machine according to claim 2 is characterized in that: The driving crushing assembly (24) comprises a rotating driving module (241), a fixing bolt (242), a driving rod supporting base (243), a driving rotating shaft (244) and a crushing wheel (245); the rotating driving module (241) is arranged on the upper side of the driving device auxiliary base (212); the rotating driving module (241) is threadedly fixedly connected to the driving device auxiliary base (212) via the fixing bolt (242); one side of the rotating driving module (241) is fixedly connected to the driving rotating shaft (244); and one side of the driving rotating shaft (244) is fixedly sleeved with a crushing wheel (245).

6. The anti-blocking crushing system for high-moisture and high-viscosity coal mechanical sampling machine according to claim 3 is characterized in that: The feed assembly (25) comprises a sealing fastening base (251) and a conical feed opening (252); the sealing fastening base (251) is threadedly connected to the upper side of the protective housing (221); and the conical feed opening (252) is provided on the upper side of the sealing fastening base (251).

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