CN210614342U

CN210614342U - Coal screening plant for coal mining

Info

Publication number: CN210614342U
Application number: CN201921672051.3U
Authority: CN
Inventors: 张志群; 周松江
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-05-26
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a coal screening plant for coal mining, including the screening case, be equipped with the charge door on the roof of screening case, the bottom of screening case is the fill form and is equipped with the discharge gate, equidistant parallel is equipped with first screen cloth, second screen cloth and third screen cloth in the screening case, first screen cloth, second screen cloth and third screen cloth all have first contained angle with water flat line, first screen cloth, second screen cloth and third screen cloth are fixed with a plurality of dead levers, every jointly the top of dead lever all extends to the upside of first screen cloth and installs solid fixed ring. The setting through each structure of this scheme can realize quick convenient screening processing to the coal that gets into the screening incasement, can realize convenient quick supplementary ejection of compact to coal simultaneously after the screening, has increased ejection of compact speed, avoids coal to block up, and whole device all has the characteristics simple as a result, easily realization, the work efficiency of improvement coal screening that can be great.

Description

Coal screening plant for coal mining

Technical Field

The utility model relates to a coal mining technology field especially relates to a coal screening plant for coal mining.

Background

Coal mines are generally divided into miners and opencast coal mines. When the coal seam is far from the ground surface, a tunnel is usually dug to the underground, so that the coal is a mineworker coal mine. When the coal seam is very close to the earth surface, the coal is generally excavated by directly stripping the earth surface, which is an open pit coal mine. Coal is the most predominant solid fuel, one of the flammable organic rocks. It is formed by that the flourishing plants grown in a certain geologic age are gradually piled up into a thick layer in a proper geologic environment, and are buried in the water bottom or silt, and then are subjected to the natural coalification action in a long geologic age.

Various mechanical equipment can be used in coal mining operation, wherein coal mines with different particle sizes need to be screened after coal mining, so that the coal mines can be conveniently processed and utilized in the later period, and the coal screening equipment used in the prior art generally has the following defects: screening equipment is generally complex in structure, large in size, slow in screening speed of coal, slow in discharging speed of the coal after screening, and the working efficiency of coal screening is seriously influenced by the problems, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a coal screening device for coal mining.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coal screening device for coal mining comprises a screening box, wherein a feed inlet is formed in the top wall of the screening box, the bottom end of the screening box is in a bucket shape and is provided with a discharge outlet, a first screen, a second screen and a third screen are arranged in the screening box in parallel at equal intervals, a first included angle is formed between the first screen, the second screen and the third screen and a horizontal line, a plurality of fixing rods are jointly fixed on the first screen, the top end of each fixing rod extends to the upper side of the first screen and is provided with a fixing ring, a steel wire rope is fixed on the top wall of each fixing ring through two fixing buckles, a first motor and two rotating seats are installed on the bottom wall of the top plate of the screening box, an elliptical steel wire wheel is rotatably connected between the two rotating seats, and the axis of the elliptical steel wire wheel is fixed with the driving end of the first motor through a shaft lever, the oval steel wire wheel is matched with the steel wire rope;

one side of first screen cloth, second screen cloth and third screen cloth bottom all is equipped with row's material pipe, and arranges material pipe and screening incasement intercommunication, every row material pipe all has the second contained angle with water flat line, and the second contained angle is greater than first contained angle, every arrange the bottom side that row material pipe kept away from screening case one end and all install the discharging pipe, and discharging pipe and row material pipe intercommunication, every arrange and all be equipped with supplementary row material mechanism in the material pipe.

Preferably, every supplementary row material mechanism all is including installing the second motor of keeping away from screening case one end at row material pipe, the drive end of second motor extends to in the discharge pipe and installs the spiral discharger, the one end that the spiral discharger is close to the screening case is connected with the backup pad through the bearing rotation, the tip of backup pad is fixed with the inboard of arranging the material pipe.

Preferably, the first, second and third screens have a mesh diameter of 3:2: 1.

Preferably, a plurality of location slide bars are installed on the inside wall of screening case near the bottom, every the top of location slide bar runs through third screen cloth, second screen cloth and first screen cloth in proper order and extends to the upside of first screen cloth, location slide bar respectively with third screen cloth, second screen cloth and first screen cloth sliding connection.

Preferably, the screw discharger consists of a rotating rod and a screw blade which is arranged on the rotating rod in a surrounding mode.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the setting through each structure of this scheme can realize quick convenient screening processing to the coal that gets into the screening incasement, can realize convenient quick supplementary ejection of compact to coal simultaneously after the screening, has increased ejection of compact speed, avoids coal to block up, and whole device all has the characteristics simple as a result, easily realization, the work efficiency of improvement coal screening that can be great.

Drawings

Fig. 1 is a schematic view of the overall structure of a coal screening device for coal mining according to the present invention;

FIG. 2 is an enlarged view of the structure of portion A of FIG. 1;

FIG. 3 is an enlarged view of the structure of portion B of FIG. 1;

fig. 4 is an enlarged view of a portion C of fig. 1.

In the figure: the device comprises a screening box 1, a feed inlet 101, a first screen 2, a second screen 3, a third screen 4, a positioning slide rod 5, a fixing rod 6, a fixing ring 7, a fixing buckle 8, a steel wire rope 9, a first motor 10, a rotating seat 11, an elliptical steel wire wheel 12, a discharge pipe 13, a second motor 14, a spiral discharge device 15, a discharge pipe 16, a support plate 17 and a bearing 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a coal screening device for coal mining comprises a screening box 1, a feed inlet 101 is arranged on the top wall of the screening box 1, the bottom end of the screening box 1 is in a hopper shape and is provided with a discharge port, a first screen 2, a second screen 3 and a third screen 4 are arranged in parallel in the screening box 1 at equal intervals, the first screen 2, the second screen 3 and the third screen 4 all have a first included angle with a horizontal line, the first screen 2, the second screen 3 and the third screen 4 are jointly fixed with a plurality of fixing rods 6, the top end of each fixing rod 6 extends to the upper side of the first screen 2 and is provided with a fixing ring 7, two fixing buckles 8 on the top wall of the fixing ring 7 are fixed with a steel wire rope 9, a first motor 10 and two rotating seats 11 are arranged on the bottom wall of the top plate of the screening box 1, an elliptical steel wire wheel 12 is rotatably connected between the two rotating seats 11, the axle center of the elliptical steel wire wheel 12 is fixedly driven by a shaft rod, the elliptical steel wire wheel 12 is matched with the steel wire rope 9;

one side of first screen cloth 2, second screen cloth 3 and third screen cloth 4 bottom all is equipped with row material pipe 13, and arranges material pipe 13 and sieve incasement intercommunication, every row material pipe 13 all has the second contained angle with water flat line, and the second contained angle is greater than first contained angle, every row material pipe 13 keeps away from the bottom side of sieve case 1 one end and all installs discharging pipe 16, and discharging pipe 16 and row material pipe 13 intercommunication, every row all is equipped with supplementary row material mechanism in arranging material pipe 13.

Every supplementary row's material mechanism all is including installing the second motor 14 that keeps away from screening case 1 one end at row material pipe 13, and the drive end of second motor 14 extends to row material pipe 13 in and installs spiral discharger 15, and spiral discharger 15 is close to the one end of screening case 1 and is connected with backup pad 17 through bearing 18 rotation, and the tip of backup pad 17 is fixed with row's inboard of expecting pipe 13.

The first screen 2, the second screen 3 and the third screen 4 have mesh diameters of 3:2: 1.

A plurality of positioning slide bars 5 are installed on the inner side wall of the screening box 1 close to the bottom end, the top end of each positioning slide bar 5 sequentially penetrates through the third screen 4, the second screen 3 and the first screen 2 and extends to the upper side of the first screen 2, and the positioning slide bars 5 are respectively in sliding connection with the third screen 4, the second screen 3 and the first screen 2.

The spiral discharging device 15 is composed of a rotating rod and a spiral blade which is arranged on the rotating rod in a surrounding mode.

In the utility model, the first motor 10 drives the elliptical steel wire wheel 12 to rotate, the elliptical steel wire wheel 12 is matched with the steel wire rope 9, the steel wire rope 9 is in sliding contact with the elliptical steel wire wheel 12, the elliptical steel wire wheel 12 is elliptical, when in sliding contact with the steel wire rope 9, the elliptical steel wire wheel 12 intermittently applies upward pulling force to the steel wire rope 9, the pulling force is transmitted to the fixing buckle 8, the fixing ring 7 and the fixing rod 6 through the steel wire rope 9, and finally transmitted to the first screen 2, the second screen 3 and the third screen 4, so that the first screen 2, the second screen 3 and the third screen 4 can do reciprocating up-and-down motion, coal enters the screening box 1 through the charging opening 101, the coal firstly falls on the first screen 2, because the first screen 2 moves up and down, the coal can be vibrated up and down, at the moment, the coal with the particle diameter smaller than the mesh diameter of the first screen 2 falls on the second screen 3, then the coal with the particle diameter smaller than the mesh diameter of the second screen 3 falls to the third screen 4, and finally the coal with the particle diameter smaller than the mesh diameter of the third screen 4 falls to the bottom of the screening box 1 and is discharged from a discharge hole at the bottom of the screening box 1.

In addition, to the coal that particle diameter is greater than 2 sieve mesh diameters of first screen cloth, the coal that particle diameter is greater than 3 sieve mesh diameters of second screen cloth, particle diameter is greater than the coal of 4 sieve mesh diameters of third screen cloth, can stay on the screen cloth that corresponds, because first screen cloth 2, second screen cloth 3 and third screen cloth 4 can up-and-down motion, consequently the coal after being sieved can pass through and get into corresponding row material pipe 13 in, because second motor 14 can drive spiral discharger 15 and rotate, consequently accessible spiral discharger 15 carries the coal in arranging material pipe 13 to corresponding discharging pipe 16 department, and finally discharge row material pipe 13, this whole screening process is accomplished.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a coal screening plant for coal mining, includes screening case (1), be equipped with charge door (101) on the roof of screening case (1), the bottom of screening case (1) is the fill form and is equipped with the discharge gate, its characterized in that, equidistance parallel is equipped with first screen cloth (2), second screen cloth (3) and third screen cloth (4) in screening case (1), first screen cloth (2), second screen cloth (3) and third screen cloth (4) all exist first contained angle with water flat line, first screen cloth (2), second screen cloth (3) and third screen cloth (4) are fixed with a plurality of dead levers (6) jointly, every the top of dead lever (6) all extends to the upside of first screen cloth (2) and installs solid fixed ring (7), two fixed knot (8) are fixed with wire rope (9) on the roof of solid fixed ring (7), a first motor (10) and two rotating seats (11) are mounted on the bottom wall of a top plate of the screening box (1), an elliptical steel wire wheel (12) is rotatably connected between the two rotating seats (11), the axis of the elliptical steel wire wheel (12) is fixed with the driving end of the first motor (10) through a shaft rod, and the elliptical steel wire wheel (12) is matched with a steel wire rope (9);

one side of first screen cloth (2), second screen cloth (3) and third screen cloth (4) bottom all is equipped with row material pipe (13), and arranges material pipe (13) and sieve case (1) interior intercommunication, every row material pipe (13) all exists the second contained angle with water flat line, and the second contained angle is greater than first contained angle, every arrange material pipe (13) and keep away from the bottom side of sieve case (1) one end and all install discharging pipe (16), and discharging pipe (16) and row material pipe (13) intercommunication, every arrange and all be equipped with supplementary row material mechanism in material pipe (13).

2. The coal screening device for coal mining as claimed in claim 1, wherein each auxiliary discharging mechanism comprises a second motor (14) installed at one end of a discharging pipe (13) far away from the screening box (1), the driving end of the second motor (14) extends into the discharging pipe (13) and is provided with a spiral discharger (15), one end, close to the screening box (1), of the spiral discharger (15) is rotatably connected with a supporting plate (17) through a bearing (18), and the end part of the supporting plate (17) is fixed with the inner side of the discharging pipe (13).

3. A coal screening apparatus as claimed in claim 1, wherein the first screen (2), second screen (3) and third screen (4) have mesh diameters of 3:2: 1.

4. The coal mining coal screening device according to claim 1, characterized in that a plurality of positioning slide bars (5) are installed on the inner side wall of the screening box (1) close to the bottom end, the top end of each positioning slide bar (5) penetrates through the third screen (4), the second screen (3) and the first screen (2) in sequence and extends to the upper side of the first screen (2), and the positioning slide bars (5) are respectively connected with the third screen (4), the second screen (3) and the first screen (2) in a sliding manner.

5. A coal screening apparatus as claimed in claim 1, wherein the screw discharger (15) comprises a rotary rod and a screw blade mounted around the rotary rod.