CN109368975A - Underground coal slime processing unit and its treatment process - Google Patents

Abstract

The invention belongs to coal mining fields, in order to solve the problems, such as that underground coal mine belt conveyer head, the working face coal slime as caused by atomizing de-dusting expire tunnel stream, provide a kind of slime drying device that underground coal mine can use everywhere, including collecting box, the rubber strip with rubber bar, coal slime case, driven shaft, cover board and driving shaft, driven shaft and driving shaft connect and compose coal slime transport mechanism by rubber strip, and rubber strip is obliquely installed, driving shaft is located at oblique upper；Cover board is parallel, is spaced the top for being set to rubber strip, the air inlet penetrated through with rubber bar is equipped at the top of cover board, coal slime case is set to the obliquely downward of rubber strip, the oblique upper of collecting box docking rubber strip, and be connected on collecting box for touching the resistance rod for hitting rubber bar, driving shaft is circumscribed with speed adjustment control.The present invention can guarantee it is severe even if current subsurface environment, coal slime water content have height have it is low in the case where, can also be competent at the work of coal slime drying and dehydrating completely.

Description

Underground coal slime processing unit and its treatment process

Technical field

The invention belongs to coal mining fields, and in particular to a kind of underground coal slime processing unit that underground speed is controllable and its The dry treatment process that underground coal mine belt conveyer head, working face coal slime and water use when separating.

Background technique

Coal mine was that thick mad type production practice with continuously improving for technique is engaged in coal mine to underground under many university students originally Exploitation, university student proposes many requirements to inherently safe and working environment, including strict implement belt conveyer head, working face Atomizing de-dusting, the execution of these processes bring some new problems, that is, after coal dust and water mixing, form coal slime Water can expire tunnel stream, most start to build a big reservoir using in belt conveyer head, working face, these black waters are collected To wherein, the mixed liquor of coal dust and water can slowly form three layers in big volume pond, the sewage of top layer, the coal slime of middle layer, Undermost solid coal grain.Then sewage above is extracted into big sump with slush pump after accumulating completely to reservoir, with mine water It is discharged on well, is then focused on well together.It is cleaned out after undermost pulverized coal particle water to be exhausted with crooked chisel, Then after equal its is done, upper well is transported with belt, at this moment most troublesome thing occurs, the coal slime of middle layer, and mud pumping is not Out, it or releases, can not but handle, send toward big sump, will cause pipeline blockage and send to pass by, upper belt, and can be along Belt does not draw well toward reflux.Cumulative, resulting in coal slime expires the scene in tunnel.In this case, only coal slime is done Dry, then upper belt is drawn onto well, but separation equipment on the market in underground and is not suitable at present.Based on this, it is necessary to invent A kind of completely new coal slime drying equipment expires the safety problem in lane to solve the current belt lane coal slime of my mine.

Summary of the invention

The present invention expires tunnel stream to solve underground coal mine belt conveyer head, the working face coal slime as caused by atomizing de-dusting Problem provides a kind of slime drying device that underground coal mine can use everywhere.

The present invention adopts the following technical scheme:

A kind of underground coal slime processing unit, including collecting box, the rubber strip with rubber bar, coal slime case, driven shaft, cover board and active Axis, driven shaft and driving shaft connect and compose coal slime transport mechanism by rubber strip, and rubber strip is obliquely installed, driving shaft is located on tiltedly Side；Cover board is parallel, interval is equipped with the air inlet penetrated through with rubber bar at the top of the top of rubber strip, cover board, and coal slime case is set to The obliquely downward of rubber strip, collecting box dock the oblique upper of rubber strip, and are connected on collecting box and hit rubber bar for touching Resistance rod.

The driving shaft is circumscribed with speed adjustment control, and speed adjustment control includes fling-cut switch QS, fusing It is protector FU, transformer T, Current Transmit 1, silicon-controlled VT1, silicon-controlled VT2, silicon-controlled VT3, silicon-controlled VT4, silicon-controlled VT5, silicon-controlled VT6, capacitor C2 and dc motor Z, input terminal A, B, C pass through fling-cut switch QS and fuse protector FU Connect one to one with three inlet wires of primary side of transformer T, input terminal A, B, C external power supply, detection and controller power source Three outlets of secondary side of terminal U, V, W and transformer T connect one to one；The primary side end of incoming cables of Current Transmit 1 is logical Three outlets of secondary side of the normally opened contact and transformer T of crossing three-phase contactor KM1 connect one to one；Current Transmit 1 Cathode of the primary side outlet terminal respectively with the anode of silicon-controlled VT1, VT3, VT5 and VT4, VT6, VT2 connect one to one, The anode of capacitor C2 is connected with the anode of the cathode of silicon-controlled VT1, VT3, VT5 and dc motor Z respectively, the cathode of capacitor C2 It is connected respectively with the cathode of the anode of VT4, VT6, VT2 and dc motor Z；It is detection and controller power source terminal U, V, W, controllable The control electrode of silicon VT1, VT3, VT5, VT4, VT6, VT2, the coil both ends of three-phase contactor KM1, Current Transmit 1 it is secondary Side three-phase end of incoming cables A1, B1, C1 and secondary side three-phase leading-out terminal a1, b1, c1 are connect with speed adjusting controller N；The speed Degree adjusting controller N includes the PLC master controller being correspondingly connected with wiring, and PLC master controller is coupled with to be adjusted set on speed Speed display screen, speed up-regulation button, speed down button, start button and stop button on controller N.

It is connected with two setting height different resistance rods one and resistance rod two on collecting box, is connect by two resistance rods Rubber bar is hit in touching, and the coal slime on rubber bar is made to fall collection.

Beneficial effects of the present invention are as follows: reasonable utilization underground existence conditions, realize the new of underground coal slime drying equipment Structure and control circuit realize the functions/drying of coal slime.Structure positioning of the invention is accurate, strong applicability high reliablity, grasps Make it is simple, ensure that it is severe even if current subsurface environment, coal slime water content have height have it is low in the case where, can also be competent at coal completely The work of mud drying and dehydrating, without having to worry about the condition of underground work environment, without increasing the object for additionally helping to settle in coal slime Matter.Structure of the invention is compact, ingenious in design, and equipment is few, and occupied area is small, and the cost and mine for significantly reducing training are built If cost, the coal formed especially suitable for high to operating environment requirements at present working face and belt conveyer head due to depositing dust The drying process of mud.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of apparatus of the present invention；

Fig. 2 is the front elevation of rubber strip；

Fig. 3 is the circuit connection schematic diagram of speed control；

Fig. 4 is the elementary diagram of speed adjusting controller；

In figure: D- air inlet, E- collecting box, F- rubber bar, G- resistance rod one, H- rubber strip, I- coal slime case, J- resistance rod two, K- driven shaft, L- cover board, M- driving shaft, N- speed control, Z- direct current generator.

Specific embodiment

Underground coal slime processing unit as shown in Figure 1, including a speed adjustment circuit, a speed control N and The controllable driving shaft M of one speed, a driven shaft K, it is connected by the rubber strip H with rubber bar F between two axis, in addition Ancillary equipment have coal slime case I, cover board L, air inlet D, resistance rod G, resistance rod J, collecting box E.It is adjusted by speed control N Save revolving speed and the start and stop etc. of driving shaft M.

Driven shaft K and driving shaft M connects and composes coal slime transport mechanism by rubber strip H, and rubber strip H is obliquely installed, actively Axis M is located at oblique upper；Cover board L is parallel, interval is set to the top of rubber strip H, be equipped at the top of cover board L with rubber bar F penetrate through into Air port D, coal slime case I are set to the obliquely downward of rubber strip H, and collecting box E docks the oblique upper of rubber strip H, and is connected on collecting box E For touching the resistance rod for hitting rubber bar F.

Input terminal A, B, C pass through primary side (the i.e. power supply of fling-cut switch QS and fuse protector FU and transformer T Side, the transformer are step-down transformer, also are understood as high-pressure side) three pieces inlet wires connect one to one, outside input terminal A, B, C Connect power supply；The secondary side (load-side also is understood as low-pressure side) three of detection and controller power source terminal U, V, W and transformer T Root outlet connects one to one；Normally opened contact and change of the primary side end of incoming cables of Current Transmit 1 by three-phase contactor KM1 Three outlets of secondary side of depressor T connect one to one；The primary side outlet terminal of Current Transmit 1 respectively with it is silicon-controlled The anode of VT1, VT3, VT5 and the cathode of VT4, VT6, VT2 connect one to one, capacitor C2 anode respectively with silicon-controlled VT1, The cathode of VT3, VT5 are connected with the anode of dc motor Z, the cathode of capacitor C2 respectively with the anode of VT4, VT6, VT2 and straight The cathode of galvanic electricity motivation Z is connected；Detection and controller power source terminal U, V, W, silicon-controlled VT1, VT3, VT5, VT4, VT6, VT2 Control electrode, the coil both ends of three-phase contactor KM1, secondary side three-phase end of incoming cables A1, B1, C1 of Current Transmit 1 and secondary Three-phase leading-out terminal a1, b1, c1 are connect with speed adjusting controller N for side；Speed adjusting controller N includes being correspondingly connected with wiring S7-300 series of PLC master controller, PLC master controller be coupled with speed display screen on speed adjusting controller N, Speed raises button, speed down button, start button and stop button.

In use, by fling-cut switch QS switching to coincidence, fuse guarantees that transformer is normal after external power supply connects power supply Work, speed adjusting controller N can to detection and controller power source terminal U, V, W voltage balance whether normal range (NR) it The electric current of interior and Current Transmit 1 secondary side three-phase end of incoming cables A1, B1, C1 and secondary side three-phase leading-out terminal a1, b1, c1 into Row detection, confirmation three-phase current is identical when being switched on and is zero, and electric current is continued to monitor after normal work, big by three-phase current Whether small identical, whether confirmation coal slime drying equipment is normal, and whether there is or not damages.After confirming Plant in good condition, equipment state is returned To original state.Coal slime is extracted out from sump, is put into coal slime case I, air inlet D is connected to underground pressure air hose with hose Road opens pressure ventilation pipe valve, presses start button, at this moment the coil of three-phase contactor KM1 can be in the control of speed adjusting controller N Under system, normally opened contact is closed, connects circuit.Then according to coal slime dry and wet degree, speed up-regulation button and speed down button are pressed The accurate control of speed is carried out, velocity magnitude can be with the real-time display on a display screen of pressing of each button, speed control meeting According to the numerical value shown on a display screen, six silicon-controlled angles of flow of real-time control, to realize that dc motor Z speed is big Small real-time adjusting；Dc motor Z connection driving shaft M operating, driven shaft K and then slowly operating under the drive of rubber strip H. Rubber bar F can be stained with coal slime during operating, and slowly run up, and the wind of air inlet can be under the action of cover board L, edge Between driving shaft M and driven shaft K rubber strip H movement, in the process of movement by the moisture band in the coal slime on rubber bar F It walks, leaves dry coal slime block and be fixedly arranged on rubber bar F, then rubber bar F can encounter resistance by root under the drive of driving shaft M Stick G, then generates deformation, and under the continuous drive of driving shaft M, the rubber bar F of deformation can impinge upon resistance with very big active force On power stick J, under the active force of deformation and shock, the anhydrous coal slime block of consolidation can be detached from rubber bar F, and gather in collecting box E Collection.The above process constantly repeats, the drying until completing whole coal slimes.After the dry completion of the coal slime of one sump, need to only it press Stop button stops working, and by fling-cut switch QS switching to open position, entire work is completed.

The effect of fling-cut switch QS is that external power supply is introduced transformer T, provides power supply for speed adjustment circuit, passes through control The three-phase normally opened contact of three-phase contactor KM1 processed is closed, silicon-controlled VT1, VT3, VT5, VT4, VT6, VT2, Current Mutual Inductance Device CT1 carries out velocity magnitude adjusting jointly, detection and the effect of controller power source terminal U, V, W be detect voltage size and Power supply is provided for speed adjusting controller N.Six silicon-controlled effects are the voltage increased or reduced towards dc motor Z. The effect of capacitor C2 is filtering, steady voltage, and whether the effect of Current Transmit 1 is to detect the size of electric current and balance, Thus play the role of controlling dc motor Z speed.The control wiring of S7-300 series of PLC master controller is art technology Personnel are easy to accomplish, can determine specific wiring according to the above-mentioned course of work.

Claims (3)

1. a kind of underground coal slime processing unit, it is characterised in that: rubber strip (H), coal including collecting box (E), with rubber bar (F) Mud box (I), driven shaft (K), cover board (L) and driving shaft (M), driven shaft (K) and driving shaft (M) connect structure by rubber strip (H) At coal slime transport mechanism, rubber strip (H) is obliquely installed, driving shaft (M) is located at oblique upper；Cover board (L) is parallel, interval is set to rubber The top of band (H), cover board (L) top are equipped with the air inlet (D) penetrated through with rubber bar (F), and coal slime case (I) is set to rubber strip (H) Obliquely downward, collecting box (E) dock rubber strip (H) oblique upper, and be connected on collecting box (E) for touch hit rubber bar (F) resistance rod.

2. coal slime processing unit in underground according to claim 1, it is characterised in that: the driving shaft (M) is circumscribed with speed Control set for adjusting, speed adjustment control include fling-cut switch QS, fuse protector FU, transformer T, current transformer CT1, silicon-controlled VT1, silicon-controlled VT2, silicon-controlled VT3, silicon-controlled VT4, silicon-controlled VT5, silicon-controlled VT6, capacitor C2 and direct current Motor Z, input terminal A, B, C pass through three inlet wires of primary side of fling-cut switch QS and fuse protector FU and transformer T Connect one to one, input terminal A, B, C external power supply, detection and controller power source terminal U, V, W and transformer T secondary side Three outlets connect one to one；The primary side end of incoming cables of Current Transmit 1 by the normally opened contact of three-phase contactor KM1 with Three outlets of secondary side of transformer T connect one to one；The primary side outlet terminal of Current Transmit 1 respectively with it is silicon-controlled The anode of VT1, VT3, VT5 and the cathode of VT4, VT6, VT2 connect one to one, capacitor C2 anode respectively with silicon-controlled VT1, The cathode of VT3, VT5 are connected with the anode of dc motor Z, the cathode of capacitor C2 respectively with the anode of VT4, VT6, VT2 and straight The cathode of galvanic electricity motivation Z is connected；Detection and controller power source terminal U, V, W, silicon-controlled VT1, VT3, VT5, VT4, VT6, VT2 Control electrode, the coil both ends of three-phase contactor KM1, secondary side three-phase end of incoming cables A1, B1, C1 of Current Transmit 1 and secondary Three-phase leading-out terminal a1, b1, c1 are connect with speed adjusting controller N for side；The speed adjusting controller N includes answering with pair of connecting wires The PLC master controller of connection, PLC master controller are coupled with the speed display screen on speed adjusting controller N, in speed Adjust button, speed down button, start button and stop button.

3. coal slime processing unit in underground according to claim 2, it is characterised in that: be connected with two on collecting box (E) and set Set height different resistance rod one (G) and resistance rod two (J).