CN217663879U

CN217663879U - Hydraulic automatic gangue discharge control system of coal preparation jigger

Info

Publication number: CN217663879U
Application number: CN202220623632.3U
Authority: CN
Inventors: 杨光喜; 杨士辉; 王向阳; 王汉伟; 张华伟; 张莹莹
Original assignee: Ruzhou Weiyuan Coal Preparation Co ltd
Current assignee: Ruzhou Weiyuan Coal Preparation Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-10-28
Anticipated expiration: 2032-03-22

Abstract

The utility model relates to a coal dressing jigging machine technical field, especially coal dressing jigging machine hydraulic pressure automatic discharge gangue control system, the technical scheme of its solution is, including the discharge gangue passageway, the discharge gangue passageway comprises two risers and a bottom plate that are interval arrangement around being, the front side riser front end fixedly connected with electrical control cabinet, its characterized in that, two fixedly connected with a vertical slide rail respectively on the relative end of riser, two the vertical sliding fit of slide rail has the baffle, seted up on the bottom plate and located the left discharge gangue mouth of baffle, two be equipped with on the riser and be used for the drive the baffle is followed the drive arrangement of the vertical removal of slide rail, drive arrangement with electrical control cabinet electricity is connected, two be equipped with respectively on the relative end of riser a set of with the trigger device that electrical control cabinet electricity is connected.

Description

Hydraulic automatic gangue discharge control system of coal preparation jigger

Technical Field

The utility model relates to a coal dressing jigging machine technical field, especially coal dressing jigging machine hydraulic pressure automatic discharge refuse control system.

Background

The working principle of the jigging coal dressing is that after the washed raw coal enters the jigging coal washer, the raw coal jumps forward under the action of wind and water; in the process of continuously jumping and advancing, light materials, namely clean coal, float upwards, heavy materials, namely waste rocks sink, layering according to density is achieved, and when the materials move to discharge openings of a waste rock section and a medium coal section, the waste rocks are discharged in time through a discharge device.

In order to obtain a better coal dressing effect, reduce the loss of clean coal and ensure the high qualification of product quality, the materials need to be discharged timely and accurately during the jigging coal dressing, so that the waste rock layer can be stably maintained at the thickness meeting the production requirement, and the stable maintenance of the waste rock layer at the thickness meeting the requirement is favorable for the overflow of the clean coal.

However, the gangue layer is often manually explored in the process of jigging and coal separation, so that the labor intensity is high, the risk is high, the thickness of the gangue layer is not beneficial to accurate control, the control of the gangue discharge time is further influenced, the phenomenon of coal leakage can occur in the case of too early gangue discharge, and the quality of clean coal can be poor in the case of too late gangue discharge. Therefore, a coal-selecting jigger capable of accurately and automatically controlling gangue discharge is urgently needed.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, for overcoming the defects of the prior art, the utility model provides an automatic waste rock discharge control system of coal dressing jigging machine hydraulic pressure, the technical scheme of its solution is, including the waste rock discharge passageway, the waste rock discharge passageway comprises two risers and a bottom plate that are interval arrangement around being, and the front side riser front end fixedly connected with electrical control cabinet, its characterized in that, two fixedly connected with a vertical slide rail respectively on the opposite end of riser, two the vertical sliding fit of slide rail has the baffle, seted up on the bottom plate and located the left waste rock discharge mouth of baffle, two be equipped with on the riser and be used for the drive the baffle is followed the drive arrangement of the vertical removal of slide rail, drive arrangement with electrical control cabinet electricity is connected, two be equipped with respectively on the opposite end of riser a set of with the trigger device that electrical control cabinet electricity is connected.

Preferably, each trigger device all includes two supporting shoes with riser inner wall fixed connection, two vertical through-hole has all been seted up on the supporting shoe, two the through-hole on the supporting shoe corresponds from top to bottom and arranges and common vertical sliding fit has the montant, montant upper end coaxial fixedly connected with be located the upside the terminal surface contact complex fender dish on the supporting shoe, montant lower extreme fixedly connected with is along transversely arranged's flat board, fixedly connected with on the riser inner wall with keep off the last trigger button that the dish corresponds, fixedly connected's clamp plate on the montant outer fringe face, fixedly connected with on the riser inner wall with the lower trigger button that the clamp plate corresponds, the coaxial fixedly connected with of montant is located the tray between two supporting shoes, and the montant overcoat is equipped with the spring that is located between the supporting shoe of tray and upside, go up trigger button with lower trigger button all with the electrical control cabinet electricity is connected.

Preferably, two symmetrically arranged vertical grooves are formed in the inner wall of the through hole in the supporting block on the lower side, and the outer edge surface of each vertical rod is fixedly connected with a guide key which is vertically matched with the corresponding vertical groove in a sliding manner.

Preferably, the driving device comprises a connecting plate fixedly connected with opposite ends of the two vertical plates, the upper end of the connecting plate is fixedly connected with a stepping motor electrically connected with the electrical control cabinet, the lower end of the connecting plate is rotatably connected with a lead screw which is vertically arranged and driven by the stepping motor, and the left end of the baffle plate is fixedly connected with a lug which is in threaded connection with the lead screw.

Preferably, the opposite ends of the two vertical plates are fixedly connected with a supporting plate which is rotatably connected with the lower end of the reciprocating screw rod.

The utility model has the advantages that:

the trigger device that is equipped with can trigger according to the thickness change on waste rock layer to step-by-step drive arrangement of electrical control cabinet control moves, and then the rising and the decline of control baffle, whether come the control to release waste rock layer discharge refuse mouth in proper order, and then the thickness of adjusting the waste rock layer maintains the thickness that accords with the production requirement all the time, and then improves the quality of coal dressing. The guide key on the vertical rod is in vertical sliding fit with the vertical groove on the inner wall of the through hole, so that the rotation of the vertical rod is limited, and the flat plate is prevented from being contacted with a gangue layer due to accidental deviation, and further the failure of the trigger device is caused. The stepping motor arranged can drive the baffle to lift through positive rotation or reverse rotation under the combined action of the trigger device and the electric control cabinet.

Drawings

Fig. 1 is a front view of the utility model.

Fig. 2 is a right side view of the present invention.

Fig. 3 is an enlarged view of the area a in the right side view of the present invention.

Fig. 4 is a first perspective view of the present invention.

Fig. 5 is a perspective view of the triggering device of the present invention.

Fig. 6 is a partial three-dimensional view of the second viewing angle of the triggering device of the present invention.

Fig. 7 is a third perspective view of the triggering device of the present invention.

Reference numerals

1. The waste rock discharge device comprises a waste rock discharge channel, 2 vertical plates, 3 bottom plates, 4 electrical control cabinets, 5 sliding rails, 6 baffle plates, 7 waste rock discharge ports, 8 supporting blocks, 9 through holes, 10 vertical rods, 11 retaining discs, 12 flat plates, 13 upper trigger buttons, 14 pressure plates, 15 lower trigger buttons, 16 trays, 17 springs, 18 vertical grooves, 19 guide keys, 20 connecting plates, 21 stepping motors, 22 lead screws, 23 bumps and 24 supporting plates.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings 1-7.

According to the first embodiment, the technical scheme for solving the problem is that the trigger device can control the driving device to work through the electric control cabinet 4, and then the baffle 6 can vertically move along the sliding rail 5. The two groups of trigger devices can control the driving device to work through the electric control cabinet 4 no matter the trigger devices are triggered simultaneously or sequentially or only one group of trigger devices is triggered. When the upper trigger button 13 of the trigger device is triggered, the upper trigger button 13 controls the stepping motor 21 to rotate forward for a set stroke through the electrical control cabinet 4, so that the baffle 6 rises along the slide rail 5 to discharge waste rock; when the lower trigger button 15 of the trigger device is triggered, the lower trigger button 15 controls the stepping motor 21 to reversely rotate for a set stroke through the electric control cabinet 4, so that the baffle 6 descends along the sliding rail 5 to block gangue discharge.

Second embodiment, on the basis of first embodiment, the waste rock discharge channel 1 comprises two vertical plates 2 and a bottom plate 3 that are the interval arrangement from front to back, the waste rock layer moves along the waste rock discharge channel 1 from the right side left side, along with the increase of the thickness of the waste rock layer in the waste rock discharge channel 1, the waste rock layer up end will contact with the flat plate 12 of trigger device and force the flat plate 12 to move upwards, along with the upward movement of the flat plate 12, the montant 10 will also move upwards vertically along the through-hole 9 on the supporting shoe 8, because the rotation of montant 10 has been restricted in the vertical sliding fit of the vertical groove 18 on the guide key 19 on the montant 10 and the through-hole 9 inner wall, in-process that has guaranteed the montant 10 to move upwards, the contact of flat plate 12 with the waste rock layer can not deviate because of accident, guarantee that trigger device can normally work. The upper end of a spring 17 in the trigger device is fixedly connected with the supporting block 8 at the upper side, and the lower end of the spring 17 is fixedly connected with the tray 16.

Along with the upward movement of the vertical rod 10, the spring 17 between the supporting block 8 on the upper side and the tray 16 is also compressed, along with the continuous increase of the thickness of the gangue layer, the vertical rod 10 continuously moves upward, the baffle disc 11 at the upper end of the vertical rod 10 is in contact with the upper trigger button 13 to trigger the upper trigger button 13, the upper trigger button 13 is triggered to stop after controlling the stroke set by the forward rotation of the stepping motor 21 on the connecting plate 20 through the electric control cabinet 4, the stroke set by the forward rotation of the stepping motor 21 drives the lead screw 22 to rotate forward for a corresponding stroke, so that the lead screw 22 drives the baffle 6 to ascend along the sliding rail 5 through the bump 23 for a corresponding stroke, at the moment, the gangue layer can be discharged through the baffle 6 and the gangue discharge port 7, along with the discharge of the gangue layer through the gangue discharge port 7, the thickness of the gangue layer in the gangue discharge passage 1 is gradually reduced. The upper end of the lead screw 22 is rotatably connected with the connecting plate 20, and the lower end of the lead screw 22 is rotatably connected with the supporting plate 24, so that the stability of the lead screw 22 is ensured.

Along with the thickness of the gangue layer in the gangue discharge channel 1 is gradually reduced, the action force of the gangue layer on the flat bar is gradually reduced, under the self-weight of the vertical bar 10 and the self-recovery extension action of the spring 17, the vertical bar 10 falls along the through hole 9 on the supporting block 8 to vertically move downwards until the vertical bar 10 moves downwards to the lowest position, at the moment, the pressing plate 14 is in contact with the lower trigger button 15 and enables the lower trigger button 15 to be triggered, the lower trigger button 15 is triggered to be located on the connecting plate 20 through the control of the electric control cabinet 4, the step motor 21 reverses the set stroke and stops, the step motor 21 reverses the set stroke and drives the lead screw 22 to reversely correspond to the stroke, further, the lead screw 22 drives the baffle 6 to descend to the initial position along the sliding rail 5 through the lug 23, the spring 17 arranged can guarantee the flexibility of the reset of the vertical bar 10, and guarantee the normal work of the trigger device.

Under the control of the trigger device, the thickness of the gangue layer in the gangue discharge passage 1 is always maintained in a thickness range suitable for production, and the coal dressing quality is ensured.

Claims

1. The hydraulic automatic waste rock discharge control system of the coal dressing jigger comprises a waste rock discharge channel (1), wherein the waste rock discharge channel (1) comprises two vertical plates (2) and a bottom plate (3) which are arranged at intervals in the front and back, the front end of the vertical plate (2) at the front side is fixedly connected with an electric control cabinet (4), the hydraulic automatic waste rock discharge control system is characterized in that the opposite ends of the vertical plates (2) are respectively and fixedly connected with a vertical sliding rail (5), the sliding rails (5) are vertically matched with a baffle (6) in a sliding manner, a waste rock discharge opening (7) positioned at the left side of the baffle (6) is formed in the bottom plate (3), a driving device used for driving the baffle (6) to vertically move along the sliding rails (5) is arranged on the vertical plates (2), the driving device is electrically connected with the electric control cabinet (4), and a set of triggering devices electrically connected with the electric control cabinet (4) is respectively arranged at the opposite ends of the vertical plates (2).

2. The hydraulic automatic gangue discharging control system of the coal preparation jigger of claim 1, wherein each triggering device comprises two supporting blocks (8) fixedly connected with the inner wall of the vertical plate (2), vertical through holes (9) are formed in the two supporting blocks (8), the through holes (9) in the two supporting blocks (8) are vertically arranged correspondingly and are matched with vertical rods (10) in a vertical sliding manner, the upper end of the vertical rod (10) is coaxially and fixedly connected with a baffle disc (11) which is in contact fit with the end surface of the supporting block (8) positioned at the upper side, the lower end of the vertical rod (10) is fixedly connected with a flat plate (12) which is arranged along the transverse direction, an upper trigger button (13) corresponding to the baffle disc (11) is fixedly connected on the inner wall of the vertical plate (2), a pressing plate (14) fixedly connected with the outer edge surface of the vertical rod (10), a lower trigger button (15) corresponding to the pressure plate (14) is fixedly connected on the inner wall of the vertical plate (2), the vertical rod (10) is coaxially and fixedly connected with a tray (16) positioned between the two supporting blocks (8), a spring (17) positioned between the tray (16) and the supporting block (8) at the upper side is sleeved outside the vertical rod (10), the upper trigger button (13) and the lower trigger button (15) are electrically connected with the electric control cabinet (4).

3. The hydraulic automatic gangue discharging control system of the coal preparation jigger of claim 2, wherein the inner wall of the through hole (9) on the supporting block (8) positioned at the lower side is provided with two symmetrically arranged vertical grooves (18), and the outer edge surface of the vertical rod (10) is fixedly connected with a guide key (19) which is vertically matched with the vertical groove (18) at the corresponding side in a sliding manner.

4. The hydraulic automatic gangue discharging control system of the coal preparation jig according to claim 1, wherein the driving device comprises a connecting plate (20) fixedly connected with opposite ends of the two vertical plates (2), a stepping motor (21) electrically connected with the electric control cabinet (4) is fixedly connected with the upper end of the connecting plate (20), a lead screw (22) which is vertically arranged and driven by the stepping motor (21) is rotatably connected with the lower end of the connecting plate (20), and a lug (23) in threaded connection with the lead screw (22) is fixedly connected with the left end of the baffle (6).

5. The hydraulic automatic gangue discharging control system of the coal preparation jigger of claim 4, wherein opposite ends of the two vertical plates (2) are fixedly connected with a supporting plate (24) rotatably connected with the lower end of the screw rod (22).