Coal mine screening device

Abstract

The utility model provides a coal mine screening device which comprises a machine frame, a screening device, a conveying device, a screening device and a screening device, and the machine frame is provided with a conveying channel which is used for conveying coal mines; the spraying assembly comprises a spraying head, the spraying head is arranged on the rack and located above the conveying channel, and the spraying assembly is used for conducting spraying and dust falling on the coal mine on the conveying channel; the vibrating assembly comprises a driving part and a vibrating screen, the vibrating screen is movably arranged on the rack, located below the conveying channel and arranged corresponding to the tail end of the conveying channel, the vibrating screen is used for bearing the coal mine on the conveying channel, and the driving part is in driving connection with the vibrating screen to drive the vibrating screen to vibrate. According to the technical scheme, the problems that in the prior art, the screening effect is poor during coal mine screening, and generated coal mine dust harms the health of workers can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine screening technical field, specifically, relate to a coal mine screening device. BACKGROUND

[0002] In the process of mining, a lot of other impurities will be mixed with coal, if want to make full use of coal, need to carry out screening in the process of coal mining, the existing coal screening equipment is cumbersome, coal screening effect is poor, will lead to a lot of coal waste, and a large amount of coal dust will be produced when coal screening, and the staff is easy to inhale the dust floating in the air into the body, coal dust has great harm to the lungs, affects the health of operating personnel. SUMMARY

[0003] The utility model provides a coal mine screening device to solve the problem of poor screening effect and coal dust harm worker's health in prior art.

[0004] The utility model provides a coal mine screening device, coal mine screening device includes: frame, frame has transport channel, and transport channel is used for conveying coal mine, spray subassembly, spray subassembly includes spray head, and spray head sets up on the frame, and is located transport channel top, and spray subassembly is used for spray dust to the coal mine on transport channel, vibration subassembly, vibration subassembly includes drive part and vibrating screen, and vibrating screen movably sets up on the frame, and vibrating screen is located the below of transport channel, and vibrating screen sets up corresponding the end of transport channel, and vibrating screen is used for the coal mine on transport channel, and drive part is driven to connect with vibrating screen, to drive vibrating screen vibration.

[0005] Further, the frame includes: a frame body; a conveyor belt disposed on the top of the frame body, the conveyor belt being used for conveying coal; and a mounting frame disposed on the frame body and below the conveyor belt, at least part of the vibration subassembly being disposed on the mounting frame.

[0006] Further, the vibrating screen includes: a frame and a screen mesh, the screen mesh being disposed on the bottom of the frame, the frame and the screen mesh cooperating to form a screen groove, the extension direction of the screen groove being the same as the extension direction of the conveyor belt.

[0007] Further, the vibrating screen further includes support members, the support members being respectively disposed on both sides of the frame, one end of each support member being hingedly connected to a side wall of the frame, and the other end of each support member being hingedly connected to the frame body.

[0008] Further, the frame has a driving end and a discharging end oppositely disposed, the discharging end has an opening, the opening being in communication with the screen groove, and the vibrating screen further includes a baffle, the baffle being detachably disposed at the opening.

[0009] Further, the side wall on both sides of the opening is provided with a slot, and the baffle is provided with a guide protrusion at both ends, which is matched with the slot.

[0010] Further, the driving member comprises a motor and a rotating disc, the rotating disc is provided with an input shaft and an output shaft in opposite positions, the input shaft is located at one side of the rotating disc, the motor is drivingly connected with the input shaft, the output shaft is located at the other side of the rotating disc, and the output shaft is drivingly connected with the driving end, so that the motor drives the vibrating screen to vibrate through the rotating disc.

[0011] Further, the rack further comprises a shell, the shell is arranged on the top of the frame body, the shell is provided with a conveying cavity, the shell is provided with an inlet and an outlet in opposite positions along the conveying direction, the inlet and the outlet are communicated with the conveying cavity, a conveying belt is arranged in the conveying cavity, and the nozzle is located on the top of the conveying cavity.

[0012] Further, the spraying assembly further comprises a main pipe and a plurality of branch pipes, the main pipe and the branch pipes are communicated, the main pipe is arranged on the shell, the water inlet of the main pipe is located on the outside of the shell, the branch pipes are fixed on the top of the conveying cavity, and each branch pipe is provided with a nozzle.

[0013] Further, the coal mine screening device further comprises an inlet cylinder, the inlet cylinder is arranged on the shell, the bottom end of the inlet cylinder is communicated with the inlet, and the flow area of the inlet cylinder gradually decreases from the direction close to the inlet.

[0014] According to the technical scheme of the coal mine screening device, the coal mine is conveyed through the conveying channel on the rack, the vibrating screen is located below the conveying channel, and the vibrating screen is arranged at the end of the conveying channel, so that the vibrating screen can receive the coal mine on the conveying channel. The driving member is drivingly connected with the vibrating screen to drive the vibrating screen to vibrate, without complex operation, other impurities and the coal mine can be screened, and the coal mine can be fully utilized. The spraying assembly located above the conveying channel can spray and dust the coal mine on the conveying channel, so that the coal mine is in a wet state before being conveyed to the vibrating screen, the vibrating screen is not easy to produce coal dust when screening the coal mine, the workers are prevented from inhaling the coal dust into the lungs during operation, and the working environment of the workers is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings accompanying the specification of this application form a part hereof, serve to provide further understanding of the application, and together with the description of the application provided below, serve to explain the application. In the drawings:

[0016] Figure 1 Fig. 1 shows a structure schematic view of a coal mine screening device provided by the present application;

[0017] Figure 2 Fig. 2 shows a structure schematic view of another perspective of the coal mine screening device provided by the present application.

[0018] Figure 3 The structure schematic diagram of the screen frame is shown.

[0019] Figure 4 The structure schematic diagram of the rotating disc and the motor is shown.

[0020] Among them, the above-mentioned drawings include the following reference signs:

[0021] 10, rack;

[0022] 11, frame body;

[0023] 12, conveying belt;

[0024] 13, mounting frame;

[0025] 14, shell;

[0026] 141, feeding port;

[0027] 142, discharging port;

[0028] 20, spraying assembly;

[0029] 21, spray head;

[0030] 22, main pipe;

[0031] 221, water inlet;

[0032] 23, branch pipe;

[0033] 30, vibration assembly;

[0034] 31, driving piece;

[0035] 311, motor;

[0036] 312, rotating disc;

[0037] 3121, input shaft;

[0038] 3122, output shaft;

[0039] 32, vibrating screen;

[0040] 321, frame;

[0041] 3210, opening;

[0042] 3212, first connecting hole;

[0043] 3211, driving end;

[0044] 322, screen mesh;

[0045] 323, supporting piece;

[0046] 324, baffle;

[0047] 40, feed cylinder. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0049] As shown in Figures 1 to 4 The coal mine screening device provided by the embodiment of the present application includes a rack 10, a spraying assembly 20 and a vibration assembly 30. The rack 10 has a transportation channel for transporting coal mines. The spraying assembly 20 includes a spray head 21 arranged on the rack 10 above the transportation channel and used for spraying and dust-setting on the coal mines on the transportation channel. The vibration assembly 30 includes a driving member 31 and a vibrating screen 32 movably arranged on the rack 10 below the transportation channel. The vibrating screen 32 is arranged corresponding to the end of the transportation channel and used for receiving the coal mines on the transportation channel. The driving member 31 is drivingly connected with the vibrating screen 32 to drive the vibrating screen 32 to vibrate.

[0050] The technical scheme of the present application is applied to transport coal mines through the transportation channel on the rack 10. The vibrating screen 32 is arranged below the transportation channel and corresponding to the end of the transportation channel, so that the vibrating screen 32 can receive the coal mines on the transportation channel. The driving member 31 is drivingly connected with the vibrating screen 32 to drive the vibrating screen 32 to vibrate, without complicated operation, so that other impurities and coal mines can be screened and separated, and the coal mines can be fully utilized. In addition, the spraying assembly 20 above the transportation channel can spray and dust-set on the coal mines on the transportation channel, so that the coal mines are in a wet state before being transported to the vibrating screen, so that the vibrating screen 32 is not easy to produce coal dust when screening the coal mines, and the workers are prevented from inhaling the coal dust into the lungs when working, thereby improving the working environment of the workers.

[0051] Further, the rack 10 comprises a rack body 11, a conveying belt 12 and a mounting rack 13. The conveying belt 12 is arranged on the top of the rack body 11 and is used for conveying the coal mine; the mounting rack 13 is arranged on the rack body 11 and is located below the conveying belt 12, and at least part of the vibration assembly 30 is arranged on the mounting rack 13. Through the above arrangement, the combination of the conveying belt 12 and the vibrating screen 32 not only realizes the automatic process from conveying to screening of the coal mine, greatly reduces the manual operation, improves the production efficiency, but also ensures the continuity and stability of the screening process.

[0052] As shown in Figure 3 The vibrating screen 32 comprises a frame 321 and a screen 322. The screen 322 is arranged at the bottom of the frame 321, and the frame 321 and the screen 322 cooperate to form a screening groove, and the extension direction of the screening groove is the same as the extension direction of the conveying belt 12. Through the above arrangement, the screen 322 is arranged at the bottom of the frame 321, and the frame 321 and the screen 322 cooperate to form a screening groove, which can realize the separation of the coal mine and other impurities. The extension direction of the screening groove is the same as the extension direction of the conveying belt 12, which can make the vibrating screen 32 keep consistent with the conveying belt 12 during work, and improve the continuity and stability of the coal screening work.

[0053] Specifically, the vibrating screen 32 further comprises a support 323, and the support 323 is arranged on both sides of the frame 321. One end of the support 323 is hinged to the side wall of the frame 321, and the other end of the support 323 is hinged to the rack body 11.

[0054] In the embodiment of the present application, the two ends of the two supports 323 are provided with connecting rods, the middle of the left and right sides of the frame 321 is respectively provided with a first connecting hole 3212, and the inner side of the rack body 11 is also provided with a second connecting hole. The connecting rods are inserted into the first connecting hole 3212 and the second connecting hole correspondingly, so that the frame 321 can move relative to the rack body 11, preventing the frame 321 from interfering with the rack body 11 when the driving part 31 drives the vibrating screen 32 to vibrate, and ensuring the normal vibration of the vibrating screen 32.

[0055] Further, the frame 321 has a driving end 3211 and a discharging end arranged oppositely, the discharging end has an opening 3210, the opening 3210 is communicated with the screening groove, and the vibrating screen 32 further comprises a baffle 324, which is detachably arranged at the opening 3210. Through the above arrangement, the discharging end has an opening 3210, and the baffle 324 is detachably arranged at the opening 3210. When the coal screening work is completed, the staff can take out the baffle 324 from the opening 3210 of the discharging end, so that the screened coal can be poured out from the discharging end of the vibrating screen 32, thereby improving the practicability of the device.

[0056] The side wall on both sides of the opening 3210 is provided with a slot, and the baffle 324 is provided with a guide protrusion at both ends, which is matched and inserted with the slot. Through the above setting, the guide protrusion and the slot are matched and inserted one by one, which can ensure the accurate alignment between the opening 3210 and the baffle 324, thereby improving the accuracy and stability of the overall connection. In addition, the guide protrusion plays a guiding role during assembly, making the opening 3210 and the baffle 324 easier to align and insert, simplifying the assembly process and improving the assembly efficiency.

[0057] In the embodiment of the present application, a handle is further provided on the upper end of the baffle 324, which facilitates the removal of the baffle 324 from the opening 3210 after the coal is screened, thereby improving the practicability.

[0058] As shown in Figure 4 The driving member 31 includes a motor 311 and a rotating disc 312. The rotating disc 312 has an input shaft 3121 and an output shaft 3122 arranged oppositely. The input shaft 3121 is located on one side of the rotating disc 312, and the motor 311 is drivingly connected with the input shaft 3121. The output shaft 3122 is located on the other side of the rotating disc 312, and the output shaft 3122 is drivingly connected with the driving end 3211. The motor 311 drives the vibrating screen 32 to vibrate through the rotating disc 312. In this way, the motor 311 is connected with the input shaft 3121 of the rotating disc 312 to transmit power to the rotating disc 312, and the output shaft 3122 is connected with the driving end 3211 of the vibrating screen 32 to transmit power to the vibrating screen 32, so that the vibrating screen can realize screening of the coal, thereby improving the quality of the coal. The motor 311 and the rotating disc 312 provide a stable and efficient power source, which can ensure the efficient and stable operation of the vibrating screen 32 and can work continuously for a long time. In addition, the use of the rotating disc 312 also reduces noise, improves the operation stability of the equipment, and reduces the influence of vibration on the surrounding environment.

[0059] In the embodiment of the present application, the driving end 3211 is provided with a connecting rod, which is directly connected with the output shaft 3122. In this way, the driving end 3211 and the rotating disc 312 are connected.

[0060] As shown in Figure 1As shown, the rack 10 further comprises a housing 14 arranged on the top of the rack body 11, the housing 14 has a conveying cavity, the housing 14 has an inlet 141 and an outlet 142 oppositely arranged along the conveying direction, the inlet 141 and the outlet 142 are both in communication with the conveying cavity, the conveying belt 12 is arranged in the conveying cavity, and the spray head 21 is located at the top of the conveying cavity. Through the above arrangement, the unsorted coal mine enters the conveying cavity from the inlet 141, is conveyed to the outlet 142 by the conveying belt 12, and then falls into the vibrating screen 32 for subsequent wetting of the coal mine. In addition, the arrangement of the housing 14 not only protects the conveying belt 12 and the spray assembly 20, but also effectively controls the dust diffusion of the working environment, thereby improving the environmental protection performance of the equipment.

[0061] The spray assembly 20 further comprises a main pipe 22 and a plurality of branch pipes 23, the main pipe 22 and the plurality of branch pipes 23 are in communication, the main pipe 22 is arranged on the housing 14, the water inlet 221 of the main pipe 22 is located on the outside of the housing 14, the branch pipes 23 are fixed on the top of the conveying cavity, and each branch pipe 23 is provided with a spray head 21. Through the above arrangement, the main pipe 22 and the plurality of branch pipes 23 are arranged, and each branch pipe 23 is provided with a spray head 21, so that the dust in the coal mine can be fully settled during the conveying process, thereby improving the dust settling effect. In addition, the water inlet 221 of the main pipe 22 is located on the outside of the housing 14, so that the water source can be connected from the outside.

[0062] The coal mine screening device further comprises an inlet cylinder 40, the inlet cylinder 40 is arranged on the housing 14, the bottom end of the inlet cylinder 40 is in communication with the inlet 141, and the flow area of the inlet cylinder 40 gradually decreases from the direction close to the inlet 141. Through the above arrangement, the tapered design of the inlet cylinder 40 can effectively control the feeding speed and distribution of the coal mine, avoid the blockage and uneven distribution of the coal mine during feeding, improve the continuity and stability of the screening process, and also optimize the distribution of the coal.

[0063] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0064] The foregoing description, for purposes of explanation, sets forth specific values and arrangements of components and steps that are subject to many options. It is their functions, equivalents, and combinations thereof, that are intended to be abidingly abstracted. The relative arrangements of components and steps, numerical expressions, and numerical values set forth in the examples herein are not intended to limit the scope of the application unless specifically recited in the claims. Also, it is to be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale as the emphasis lies in the principles of the application. Techniques, methods, and apparatus known to those of ordinary skill are not discussed in detail because they would be understood that the description is to be considered as part of the specification. In all examples shown and discussed herein, any specific value is to be interpreted merely as an example, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It is to be noted that like reference numerals and letters refer to like items in the drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0065] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0066] For the convenience of description, spatial relative terms such as "above", "upper", "on", "upper", and the like can be used herein to describe the spatial relationship of one device or feature to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0067] In addition, it needs to be pointed out that the use of "first", "second" and the like to limit the parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0068] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A coal mine screening device, characterised in that, The coal mine screening device comprises: a rack (10) having a conveying channel for conveying coal mines; a spraying assembly (20) comprising a spray head (21) arranged on the rack (10) and above the conveying channel, and used for spraying and dust-setting on the coal mines on the conveying channel; a vibrating assembly (30) comprising a driving member (31) and a vibrating screen (32) movably arranged on the rack (10) and below the conveying channel, and arranged at the end of the conveying channel, and used for receiving the coal mines on the conveying channel, and the driving member (31) is drivingly connected with the vibrating screen (32) to drive the vibrating screen (32) to vibrate.

2. The coal mine screening device of claim 1, wherein, The rack (10) comprises: a rack body (11); a conveying belt (12) arranged on the top of the rack body (11) and used for conveying coal mines; a mounting rack (13) arranged on the rack body (11) and below the conveying belt (12), and at least part of the vibrating assembly (30) is arranged on the mounting rack (13).

3. The coal mine screening apparatus of claim 2, wherein, The vibrating screen (32) comprises: a frame (321) and a screen mesh (322) arranged on the bottom of the frame (321), and the frame (321) and the screen mesh (322) cooperate to form a screen groove, and the extension direction of the screen groove is the same as the extension direction of the conveying belt (12).

4. The coal mine screening apparatus of claim 3, wherein, The vibrating screen (32) further comprises a support member (323) arranged on both sides of the frame (321), one end of the support member (323) is hinged to the side wall of the frame (321), and the other end of the support member (323) is hinged to the rack body (11).

5. The coal mine screening device of claim 3, wherein, The frame (321) has a driving end (3211) and a discharge end arranged oppositely, the discharge end has an opening (3210) in communication with the screen groove, and the vibrating screen (32) further comprises a baffle (324) detachably arranged at the opening (3210).

6. The coal mine screening apparatus of claim 5, wherein, The side walls on both sides of the opening (3210) are provided with insertion grooves, and the baffle (324) is provided with guide protrusions at both ends, and the guide protrusions are one-to-one matched with the insertion grooves.

7. The coal mine screening device of claim 5, wherein, The driving piece (31) comprises a motor (311) and a rotating disc (312), the rotating disc (312) is provided with oppositely arranged input shaft (3121) and output shaft (3122), the input shaft (3121) is located on one side of the rotating disc (312), the motor (311) is in driving connection with the input shaft (3121), the output shaft (3122) is located on the other side of the rotating disc (312), the output shaft (3122) is in driving connection with the driving end (3211), the motor (311) drives the vibrating screen (32) to vibrate through the rotating disc (312).

8. The coal mine screening device of claim 2, wherein, The rack (10) further comprises a shell (14) provided on the top of the frame body (11), the shell (14) has a conveying cavity, the shell (14) has a feeding port (141) and a discharging port (142) oppositely arranged along the conveying direction, the feeding port (141) and the discharging port (142) are both in communication with the conveying cavity, the conveying belt (12) is arranged in the conveying cavity, and the spray head (21) is located on the top of the conveying cavity.

9. The coal mine screening apparatus of claim 8, wherein, The spray assembly (20) further comprises a main pipe (22) and a plurality of branch pipes (23), the main pipe (22) and the plurality of branch pipes (23) are in communication, the main pipe (22) is arranged on the shell (14), the water inlet (221) of the main pipe (22) is located on the outside of the shell (14), the branch pipe (23) is fixed on the top of the conveying cavity, and the spray head (21) is arranged on each branch pipe (23).

10. The coal mine screening device of claim 8, wherein, The coal mine screening device further comprises a feeding cylinder (40), the feeding cylinder (40) is arranged on the shell (14), the bottom end of the feeding cylinder (40) is in communication with the feeding port (141), and the flow area of the feeding cylinder (40) gradually decreases from the direction close to the feeding port (141).

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