CN219540976U - Sieving mechanism that colliery was opened and is used - Google Patents

Abstract

The utility model belongs to the technical field of coal mining, and provides a screening device for coal mining, which comprises a base, wherein a box body is fixedly connected to the base, a composite screen cylinder part is connected in the box body in a rotating way, the composite screen cylinder part is obliquely arranged, two ends of the box body are provided with a feeding component and a discharging component, a first driving part is arranged between the box body and the composite screen cylinder part, a water spraying part is arranged on the box body and corresponds to the inner side of the composite screen cylinder part, a discharge hopper is arranged at the bottom of the box body and corresponds to the composite screen cylinder part, a water collecting tank is arranged below the discharge hopper and fixedly connected to the base, a water filtering screening part is arranged in the water collecting tank, a second driving part is arranged between the water filtering screening part and the water collecting tank, a discharging hole is formed in the side wall of the water collecting tank, and the discharging hole corresponds to the water filtering screening part. The utility model can effectively inhibit dust diffusion in the process of screening the coal mine and can perform multi-stage screening.

Description

Sieving mechanism that colliery was opened and is used

Technical Field

The utility model belongs to the technical field of coal mining, and particularly relates to a screening device for coal mining.

Background

In the current market, coal is required to be screened according to different sizes of coal particles in the production technology of coal so as to conveniently distinguish the sizes of the coal particles, and under the general condition, the coal is placed on a circular vibrating screen or a vibrating screen to obtain the coal with the size required by people.

Patent publication No. CN217069546U discloses a device for mining of open pit coal mine thin seam, drives the cylinder through the motor and rotates, makes coal roll in the cylinder, sieves the material through a plurality of sieve pores of seting up on the cylinder, and the material that drops from the sieve pore enters into and collects in the storehouse. Although this scheme has solved and will be worse along with coal mining mechanization degree improvement and raw coal quality at present, need carry out the problem of screening to the coal when the colliery is mined, when carrying out the colliery screening through this technical scheme, there is a large amount of dust diffusion, not only can produce the influence to equipment, still has the potential safety hazard, and simultaneously, this technical scheme sieves through one kind sieve mesh only, and the process is single, and screening efficiency is not high. Therefore, there is a need for a coal mine screening apparatus that can effectively suppress dust diffusion in the process of screening a coal mine and simultaneously perform multi-stage screening.

Disclosure of Invention

The utility model aims to provide a screening device for coal mine exploitation, which solves the problems and achieves the purposes of effectively inhibiting dust diffusion and carrying out multistage screening in the process of screening coal mines.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a sieving mechanism that colliery was opened and was used, includes the base, the rigid coupling has the box on the base, it is connected with compound screen section of thick bamboo portion to rotate in the box, compound screen section of thick bamboo portion slope sets up, the both ends of box are provided with feed assembly and ejection of compact subassembly, compound screen section of thick bamboo portion high-end with feed assembly intercommunication, compound screen section of thick bamboo portion's low end with ejection of compact subassembly intercommunication, the box with be provided with first drive portion between the compound screen section of thick bamboo portion, be provided with water spray portion on the box, water spray portion with compound screen section of thick bamboo portion's inboard corresponds the setting, the bottom of box is provided with out the hopper, out the hopper with compound screen section of thick bamboo portion corresponds the setting, the below of hopper is provided with the water catch bowl, the water catch bowl rigid coupling is in on the base, be provided with drainage screening portion in the water catch bowl, the drainage screening portion with be provided with second drive portion between the water catch bowl, the discharge gate has been seted up on the lateral wall of water catch bowl, the discharge gate corresponds with the drainage portion.

Preferably, the composite screen drum comprises an outer drum which is connected between two opposite side walls of the box body in a rotating mode, the outer drum is obliquely arranged, the lower end of the outer drum is provided with an opening, an inner drum is fixedly connected to the inner drum in a coaxial line mode, two ends of the inner drum are provided with openings, the high end of the inner drum fixedly penetrates through the outer drum, a plurality of reinforcing rods are fixedly connected between the inner drum and the outer drum, a plurality of first sieve holes are formed in the circumferential side wall of the inner drum, a plurality of second sieve holes are formed in the circumferential side wall of the outer drum, and the lower ends of the inner drum and the outer drum are respectively communicated with the discharging assembly.

Preferably, the first driving part comprises a gear ring coaxially and fixedly sleeved on the outer roller, the gear ring is positioned at the high end of the outer roller, a first motor is fixedly connected to the box body, a gear is fixedly sleeved on an output shaft of the first motor, and the gear is meshed with the gear ring.

Preferably, the water spraying part comprises a water pump fixedly connected to the box body, a water inlet pipe is communicated with a water inlet end of the water pump, one end of a high-pressure water pipe is communicated with a water outlet end of the water pump, a plurality of spray heads are communicated with the other end of the high-pressure water pipe, and the spray heads are positioned on the upper portion of the inner side of the inner roller.

Preferably, the water filtering and screening part comprises a plurality of fixing seats fixedly connected to the inner side wall of the water collecting tank, one ends of springs are vertically and fixedly connected to the tops of the fixing seats respectively, a plurality of screens are fixedly connected to the other ends of the springs, the screens are located in the water collecting tank and are obliquely arranged, the lower ends of the screens are correspondingly arranged at the discharge holes, and the second driving part is arranged between the screens and the water collecting tank.

Preferably, the second driving part comprises a second motor fixedly connected to the side wall of the water collecting tank, a rotary table is fixedly sleeved on an output shaft of the second motor, one end of a connecting rod is hinged to the edge of the rotary table, and the other end of the connecting rod is hinged to the edge of the screen.

Preferably, the discharging assembly comprises a first guide chute and a second guide chute which are fixedly connected to the box body, the first guide chute is correspondingly arranged with the low-end opening of the inner roller, and the second guide chute is correspondingly arranged with the low-end opening of the outer roller.

The utility model has the following technical effects: the main function of the composite screen cylinder part is to perform two-stage screening on the coal mine poured into the screening device; the main function of the feeding component is to guide the coal mine into the composite screen cylinder; the main function of the discharging component is to guide the coal mine screened in the composite screen cylinder part out of the screening device in a grading way; the main function of the water spraying part is to spray water to the coal mine in the composite screen cylinder part when the composite screen cylinder part works, so that dust generation is inhibited; the main function of the discharge hopper is to guide the dropped materials and water in the composite screen cylinder part into the water collecting tank; the main function of the water filtering and screening part is to separate the materials falling from the water screen in the composite screen cylinder part, so that the water flows into the water collecting tank, and the materials are guided out from the discharge hole; the main function of the second driving part is to drive the filtering screening part to vibrate, so as to accelerate the screening process. In the whole, the utility model can effectively inhibit dust diffusion in the process of screening the coal mine, improve the working environment, and simultaneously can carry out multistage screening on the coal mine, thereby effectively improving the screening efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front cross-sectional view of a screening apparatus of the present utility model;

FIG. 2 is an enlarged view of part A of FIG. 1;

wherein, 1, the box body; 2. an outer drum; 3. an inner drum; 4. a gear ring; 5. a first motor; 6. a first screen aperture; 7. a second screen aperture; 8. a first guide chute; 9. a second guide chute; 10. discharging a hopper; 11. a water collection tank; 12. a screen; 13. a spring; 14. a second motor; 15. a connecting rod; 16. a fixing seat; 17. a feed pipe; 18. a high pressure water pipe; 19. a spray head; 20. a water pump; 21. a water inlet pipe; 22. a discharge port; 23. a feed hopper; 24. a reinforcing rod; 25. a base; 26. and a water discharge pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1-2, the utility model provides a screening device for coal mine opening, which comprises a base 25, wherein a box body 1 is fixedly connected to the base 25, a composite screen drum part is connected in a rotating manner to the box body 1, the composite screen drum part is obliquely arranged, two ends of the box body 1 are provided with a feeding component and a discharging component, the high end of the composite screen drum part is communicated with the feeding component, the low end of the composite screen drum part is communicated with the discharging component, a first driving part is arranged between the box body 1 and the composite screen drum part, a water spraying part is arranged on the box body 1, the water spraying part is correspondingly arranged on the inner side of the composite screen drum part, a discharge hopper 10 is arranged at the bottom of the box body 1, the discharge hopper 10 is correspondingly arranged with the composite screen drum part, a water collecting tank 11 is fixedly connected to the base 25, a water filtering screening part is arranged in the water collecting tank 11, a second driving part is arranged between the water filtering screening part and the water collecting tank 11, a discharging port 22 is arranged on the side wall of the water collecting tank 11, and the discharging port 22 is correspondingly arranged with the water filtering screening part.

The main function of the composite screen cylinder part is to perform two-stage screening on the coal mine poured into the screening device; the main function of the feeding component is to guide the coal mine into the composite screen cylinder; the main function of the discharging component is to guide the coal mine screened in the composite screen cylinder part out of the screening device in a grading way; the primary function of the first driving part is to drive the composite screen cylinder part to run, so that screening work is smoothly carried out; the main function of the water spraying part is to spray water to the coal mine in the composite screen cylinder part when the composite screen cylinder part works, so that dust generation is inhibited; the main function of the discharge hopper 10 is to guide the materials and water falling from the composite screen cylinder part into the water collecting tank 11; the main function of the water filtering and screening part is to separate the materials falling from the water screen in the composite screen cylinder part, so that the water flows into the water collecting tank 11, and the materials are guided out from the discharge hole 22; the main function of the second driving part is to drive the filtering screening part to vibrate, so as to accelerate the screening process. In the whole, the utility model can effectively inhibit dust diffusion in the process of screening the coal mine, improve the working environment, and simultaneously can carry out multistage screening on the coal mine, thereby effectively improving the screening efficiency.

Further optimizing scheme, the compound screen drum is including rotating the outer cylinder 2 of connection between the two opposite side walls of box 1, outer cylinder 2 slope setting, outer cylinder 2's low extreme is the opening setting, outer cylinder 2 is interior cylinder 3 of coaxial line fixedly connected with, interior cylinder 3's both ends are the opening setting, outer cylinder 2 is run through to interior cylinder 3's high end is fixed, fixedly connected with a plurality of reinforcing bars 24 between interior cylinder 3 and the outer cylinder 2, a plurality of first sieve meshes 6 have been seted up on the circumference lateral wall of interior cylinder 3, a plurality of second sieve meshes 7 have been seted up on the circumference lateral wall of outer cylinder 2, interior cylinder 3 and outer cylinder 2's low extreme respectively with ejection of compact subassembly intercommunication.

Further optimizing scheme, first drive portion includes the fixed cover of coaxial line and establishes ring gear 4 on outer cylinder 2, and ring gear 4 is located the high end of outer cylinder 2, fixedly connected with first motor 5 on the box 1, and the fixed cover of output shaft of first motor 5 is equipped with the gear, and the gear meshes with ring gear 4 mutually.

The size of the first screen holes 6 is larger than the size of the second screen holes 7. When the coal mine is screened, the coal mine is poured into the inner roller 3 through the feeding component, the first motor 5 is started, the first motor 5 rotates to drive the gear to rotate, the gear rotates to drive the gear ring 4 to enable the outer roller 2 to rotate in the box body 1, and the outer roller 2 rotates to drive the inner roller 3 to synchronously rotate. The inner roller 3 rotates to roll the coal mine in the inner roller and move to the lower end, part of the coal mine falls into the outer roller 2 through the first sieve holes 6, and the rest of the coal mine enters the discharging assembly through the lower end opening. The coal mine in the outer roller 2 rolls along with the outer roller 2 and moves towards the lower end, part of the coal mine falls to the discharge hopper 10 through the second sieve holes 7, and the rest enters the discharge assembly through the opening at the lower end.

Further optimizing scheme, water spraying portion includes the water pump 20 of fixed connection on box 1, and the water inlet end intercommunication of water pump 20 has inlet tube 21, and the water outlet end intercommunication of water pump 20 has the one end of high-pressure water pipe 18, and the other end intercommunication of high-pressure water pipe 18 has a plurality of shower nozzles 19, and a plurality of shower nozzles 19 are located the inboard upper portion of interior cylinder 3.

One end of the water inlet pipe 21 is communicated with water storage equipment, and the other end is communicated with the water inlet end of the water pump 20. When the coal mine is screened, the water pump 20 is started, the water pump 20 leads the water in the water storage equipment into the high-pressure water pipe 18 and sprays the water through the spray heads 19, and the spray heads 19 spray the water into the coal mine, so that dust generation is inhibited.

Further optimizing scheme, the drainage screening portion includes a plurality of fixing bases 16 of fixed connection on water catch bowl 11 inside wall, the one end of vertical fixedly connected with spring 13 is respectively at the top of a plurality of fixing bases 16, the other end fixedly connected with screen cloth 12 of a plurality of springs 13, screen cloth 12 is located the inside of water catch bowl 11 and slope setting, the low end and the discharge gate 22 of screen cloth 12 correspond the setting, the second drive portion setting is between screen cloth 12 and water catch bowl 11.

Further optimizing scheme, the second drive part includes fixed connection on water catch bowl 11 lateral wall second motor 14, and fixed cover is equipped with the carousel on the output shaft of second motor 14, and the limit portion of carousel articulates there is the one end of connecting rod 15, and the other end of connecting rod 15 articulates the limit portion at screen cloth 12.

When the coal mine is screened, the second motor 14 is started simultaneously, the second motor 14 rotates to drive the turntable to rotate, the turntable rotates to drive the connecting rod 15 to swing, and the connecting rod 15 swings to drive the screen 12 to vibrate. The main function of the spring 13 is to amplify the vibration of the screen 12 and to improve screening efficiency. The mesh size of the screen 12 is smaller than the size of the second mesh 7. After the materials and water screened by the outer roller 2 fall onto the screen 12 from the discharge hopper 10, the coal mine is screened by vibration of the screen 12, so that fine impurities and water flow into the water collecting tank 11 through the meshes together for storage, and the rest coal mine is led out through the discharge hole 22.

Further optimizing scheme, the feeding subassembly includes inlet pipe 17 and feeder hopper 23, and inlet pipe 17 fixed connection is on box 1, and the discharge gate of inlet pipe 17 corresponds the setting with the high end opening of interior cylinder 3, and the discharge end and the feeder hopper 23 intercommunication of inlet pipe 17.

Further optimizing scheme, the ejection of compact subassembly includes first baffle box 8 and second baffle box 9 of fixed connection on box 1, and first baffle box 8 corresponds the setting with the low side opening of interior cylinder 3, and second baffle box 9 corresponds the setting with the low side opening of outer cylinder 2.

The first guide chute 8, the second guide chute 9 and the discharge hole 22 are respectively communicated with different storage devices and are used for storing coal mines with different sizes which are screened out.

Further optimizing scheme, the bottom of water catch bowl 11 is the slope facility, and the intercommunication has drain pipe 26 on the lateral wall that water catch bowl 11 is close to the bottom low end, and drain pipe 26 communicates with water catch bowl 11 inside.

When the water collection tank 11 is full, the drain pipe 26 may be opened to allow water to flow out.

The working procedure of this embodiment is as follows: when the coal mine is needed to be screened, the water pump 20 is communicated with the water storage equipment, the first motor 5, the second motor 14 and the water pump 20 are connected with the mains supply, and then the first motor 5, the second motor 14 and the water pump 20 are started to enable the outer roller 2 to rotate, the screen 12 is vibrated, and the spray heads 19 spray water into the inner roller 3. The coal mine is poured into the feed hopper 23, and after entering the inner drum 3 through the feed pipe 17, the screening device begins screening the coal mine. Large particle coal mines screened out by the inner roller 3 are guided out by the first guide chute 8, and smaller particle coal mines screened out by the outer roller 2 are guided out by the second guide chute 9. Coal mine and water flowing out through the second sieve holes 7 on the outer drum 2 fall onto the screen mesh 12 through the discharge hopper 10, the second screen mesh 12 filters the water and fine impurities into the water collecting tank 11, and the rest coal mine moves to the discharge hole 22 and is discharged under the vibration action of the screen mesh 12.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (7)

1. A sieving mechanism that colliery was opened and is used, its characterized in that: including base (25), the rigid coupling has box (1) on base (25), the box (1) internal rotation is connected with compound screen section of thick bamboo portion, compound screen section of thick bamboo portion slope sets up, the both ends of box (1) are provided with feed assembly and ejection of compact subassembly, the high end of compound screen section of thick bamboo portion with feed assembly intercommunication, the low end of compound screen section of thick bamboo portion with ejection of compact subassembly intercommunication, box (1) with be provided with first drive portion between the compound screen section of thick bamboo portion, be provided with water spray portion on box (1), water spray portion with the inboard of compound screen section of thick bamboo portion corresponds the setting, the bottom of box (1) is provided with out hopper (10), go out hopper (10) with the below of compound screen section of thick bamboo portion corresponds the setting, the below of hopper (10) is provided with water catch bowl (11), water catch bowl (11) rigid coupling is in base (25), be provided with in water filter screen portion, water filter portion with be provided with between compound screen portion and the drive portion (22) water catch bowl (11) correspond the discharge port (22).

2. A coal mine opening screening apparatus as claimed in claim 1, wherein: the composite screen cylinder comprises an outer cylinder (2) which is connected between two opposite side walls of a box body (1) in a rotating mode, the outer cylinder (2) is obliquely arranged, the lower end of the outer cylinder (2) is provided with an opening, an inner cylinder (3) is fixedly connected to the inner cylinder (2) in a coaxial line mode, two ends of the inner cylinder (3) are provided with openings, the high end of the inner cylinder (3) fixedly penetrates through the outer cylinder (2), a plurality of reinforcing rods (24) are fixedly connected between the inner cylinder (3) and the outer cylinder (2), a plurality of first screen holes (6) are formed in the circumferential side walls of the inner cylinder (3), a plurality of second screen holes (7) are formed in the circumferential side walls of the outer cylinder (2), and the lower ends of the inner cylinder (3) and the outer cylinder (2) are respectively communicated with a discharging assembly.

3. A coal mine opening screening apparatus as claimed in claim 2, wherein: the first driving part comprises a gear ring (4) coaxially and fixedly sleeved on the outer roller (2), the gear ring (4) is positioned at the high end of the outer roller (2), a first motor (5) is fixedly connected to the box body (1), a gear is fixedly sleeved on an output shaft of the first motor (5), and the gear is meshed with the gear ring (4).

4. A coal mine opening screening apparatus as claimed in claim 2, wherein: the water spraying part comprises a water pump (20) fixedly connected to the box body (1), a water inlet pipe (21) is communicated with the water inlet end of the water pump (20), one end of a high-pressure water pipe (18) is communicated with the water outlet end of the water pump (20), a plurality of spray heads (19) are communicated with the other end of the high-pressure water pipe (18), and the spray heads (19) are located on the upper inner side of the inner roller (3).

5. A coal mine opening screening apparatus as claimed in claim 1, wherein: the water filtering and screening part comprises a plurality of fixing seats (16) fixedly connected to the inner side wall of the water collecting tank (11), a plurality of fixing seats (16) are vertically fixedly connected with one ends of springs (13) respectively at the tops of the fixing seats, a plurality of screens (12) are fixedly connected to the other ends of the springs (13), the screens (12) are located in the water collecting tank (11) and are obliquely arranged, the lower ends of the screens (12) are correspondingly arranged at the discharge holes (22), and the second driving part is arranged between the screens (12) and the water collecting tank (11).

6. The coal mine opening screening apparatus of claim 5, wherein: the second driving part comprises a second motor (14) fixedly connected to the side wall of the water collecting tank (11), a rotary disc is fixedly sleeved on an output shaft of the second motor (14), one end of a connecting rod (15) is hinged to the edge of the rotary disc, and the other end of the connecting rod (15) is hinged to the edge of the screen (12).

7. A coal mine opening screening apparatus as claimed in claim 2, wherein: the discharging assembly comprises a first guide chute (8) and a second guide chute (9) which are fixedly connected to the box body (1), the first guide chute (8) is correspondingly arranged with the low-end opening of the inner roller (3), and the second guide chute (9) is correspondingly arranged with the low-end opening of the outer roller (2).