Automatic detection screening control device for coal mine
Technical Field
The utility model relates to an automatic detection screening control device for a coal mine.
Background
At present, coal is widely used in China, but coal resources are limited, along with the rapid development of the economy of China, the urban construction is accelerated, the industrial production is rapidly developed, the demand of the coal is more and more large, the current coal can be screened before transmission, but the screening precision of some existing coal mine screening devices is not high, due to the fact that the granularity of the broken coal mine is different, the difficulty of the whole line is large, the coal mine with small grain size is easy to extrude and pile, the inspection is inconvenient, the operation of removing impurities and removing impurities is more difficult, and therefore the screening effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coal mine automatic detection screening control device, which solves the problem that the screening precision of the conventional coal mine screening equipment is not high.
In order to solve the technical problem, the utility model provides an automatic detection and screening control device for a coal mine, which comprises a crushing device and a first conveyor belt arranged below a discharge hole of the crushing device; the first conveyor belt sequentially penetrates through the spraying device and the drying device and then is connected with a feeding port of the coal mine classification device; the coal mine classification device comprises a shell, wherein a vibrator is arranged at the bottom of the shell, a plurality of screen meshes are sequentially arranged in the shell from top to bottom, and meshes of the screen meshes at the upper part are sequentially larger than meshes at the lower part; the discharge gate of every screen cloth all disposes an permutation device, the discharge gate of permutation device is provided with colliery sieving mechanism.
Further, the spraying device comprises a high-pressure water spraying head arranged above the first conveyor belt.
Furthermore, a water permeable hole is formed in the first conveying belt, a sewage recovery device is arranged below the first conveying belt and is arranged on the high-pressure water spray head, and sewage in the sewage recovery device is circulated to supply water to the high-pressure water spray head after passing through a sewage filter.
Further, the drying device is an air drying device and comprises a plurality of high-pressure air nozzles arranged above the first conveyor belt.
Further, the permutation device is equipped with the pan feeding surge chamber of being connected with colliery sorter discharge gate including the vibration shaking table that the slope set up, the upper end of vibration shaking table, be equipped with on the vibration shaking table along vibration shaking table incline direction extend and with the permutation passageway of pan feeding surge chamber intercommunication.
Further, the whole row of channels is S-shaped.
Further, the coal mine screening device comprises a second conveyor belt communicated with an outlet of the alignment channel, a coal mine detector is arranged above the second conveyor belt, and an impurity removing device is arranged on the side portion of the second conveyor belt.
Further, the impurity removing device is a blowing device, a starting push rod or a mechanical arm.
The utility model has the beneficial effects that: the crushed coal mine is firstly subjected to spraying treatment, so that silt impurities attached to the coal mine can be removed, the purpose of impurity removal is achieved, dust in the subsequent operation process is reduced, and in addition, the detection precision of subsequent detection is improved after the impurities on the surface of the coal mine are removed under the spraying effect; the coal mine after the spraying treatment is dried by the drying device, so that the quality of the coal mine can be ensured, and the subsequent screening and impurity removal operation is facilitated; through the classification of coal of different size grades in the colliery through the drying, then carry out the edulcoration to the colliery of different particle sizes respectively, reduced because of the detection degree of difficulty and the impurity that small-size colliery crowded heap brought and propose the degree of difficulty.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic block diagram of one embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an alignment apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a coal mine screening device according to an embodiment of the utility model.
Wherein: 1. a crusher; 2. a first conveyor belt; 3. a spraying device; 4. a drying device; 5. a coal mine classification device; 51. screening a screen; 52. a vibrator; 6. arranging devices in a row; 61. vibrating the shaking table; 62. a feeding port; 63. arranging channels in a row; 7. a coal mine screening device; 71. a second conveyor belt; 72. an impurity removing device; 73. a coal mine detector; 74. a coal mine collection box; 75. impurity collecting box.
Detailed Description
The automatic detection and screening control device for the coal mine as shown in fig. 1 and 2 comprises a crushing device and a first conveyor belt 2 arranged below a discharge port of the crushing device; the first conveyor belt 2 sequentially penetrates through the spraying device 3 and the drying device 4 and then is connected with a feeding port 62 of the coal mine classification device 5; the coal mine classification device 5 comprises a shell, wherein a vibrator 52 is arranged at the bottom of the shell, a plurality of screen meshes 51 are sequentially arranged in the shell from top to bottom, and meshes of the screen meshes 51 positioned at the upper part are sequentially larger than meshes at the lower part; the discharge port of each screen 51 is provided with an alignment device, and the discharge port of the alignment device is provided with a coal mine screening device 7.
According to the utility model, the crushed coal mine is firstly subjected to spraying treatment, so that silt impurities attached to the coal mine can be removed to achieve the purpose of impurity removal, dust in the subsequent operation process is reduced, and the detection precision of subsequent detection is improved after the impurities on the surface of the coal mine are removed under the spraying action; the coal mine after the spraying treatment is dried by the drying device 4, so that the quality of the coal mine can be ensured, and the subsequent screening and impurity removal operation is facilitated; through the classification of coal of different size grades in the colliery through the drying, then carry out the edulcoration to the colliery of different particle sizes respectively, reduced because of the detection degree of difficulty and the impurity that small-size colliery crowded heap brought and propose the degree of difficulty.
The spraying device 3 comprises a high-pressure water spraying head arranged above the first conveyor belt 2. The coal mine on the first conveyor belt 2 below is sprayed by the high-pressure spray nozzle, so that the dust removal and cleaning effects can be achieved, and the subsequent screening operation is realized.
The first conveyor belt 2 is provided with water permeable holes, a sewage recovery device is arranged below the first conveyor belt 2 and is arranged on the high-pressure water spray head, and sewage in the sewage recovery device is circulated to supply water to the high-pressure water spray head after passing through a sewage filter. The sewage generated after spraying is filtered and recycled, so that water resources can be saved, and meanwhile, the environmental pollution can be reduced.
The drying device 4 is an air drying device and comprises a plurality of high-pressure air nozzles arranged above the first conveyor belt 2. The high-pressure air nozzle is used as drying equipment, so that the coal mine drying device can play a role in drying the coal mine, and can also play a role in secondary cleaning on the surface of the coal mine so as to improve the screening precision of the follow-up coal mine.
As shown in fig. 3, the aligning device includes an inclined vibrating table 61, a feeding buffer chamber connected to the discharge port of the coal mine classifying device 5 is disposed at the upper end of the vibrating table 61, and an aligning channel 63 extending along the inclined direction of the vibrating table 61 and communicating with the feeding buffer chamber is disposed on the vibrating table 61. The aperture of the sorting channel can be slightly larger than that of the upper layer screen mesh 51 of the screen mesh 51 corresponding to the aligning device, the aperture of the sorting channel of the uppermost aligning device is slightly larger than the maximum coal mine particle size crushed by the crusher 1, and coal mines with different particle sizes classified by the coal mine classification device 5 enter the corresponding aligning device and then sequentially enter the aligning channel 63 for aligning under the vibration and shaking of the vibration shaker 61.
The array of channels 63 is S-shaped. Because there is occasionally a very small amount of coal mine cracking during screening and transportation, and there may be overlapping conditions after the coal mine enters the alignment passage 63 after the coal mine particle size is reduced, the present application prolongs the path of the coal mine in the alignment passage 63 by providing the S-shaped alignment passage 63, and under the vibration and shaking of the vibration shaker 61, the coal mine with slightly smaller particle size overlapped together can be separated under the continuous collision with the wall of the alignment passage 63.
As shown in fig. 4, the coal mine screening device 7 comprises a second conveyor belt 71 communicated with the outlet of the alignment passage 63, a coal mine detector 73 is arranged above the second conveyor belt 71, and an impurity removing device 72 is arranged at the side part of the second conveyor belt 71; the coal mine detector 73 may use a gamma ray detector to perform identification and detection through gamma rays, or may use an image identification device to perform identification and detection, and the specific identification device may be implemented by using existing equipment, which is not described herein again. The impurity removing device 72 is a blowing device, a starting push rod or a mechanical arm; when the coal mine detector 73 identifies the impurity blocks, the impurity removing device 72 is started to remove the impurity blocks from the second conveyor belt 71 immediately, an impurity collecting box 75 is arranged below the second conveyor belt 71 corresponding to the impurity removing device to collect the impurities, and a coal mine collecting box 74 is arranged at the tail of the second conveyor belt 71 to collect the impurities.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.