CN201367917Y

CN201367917Y - Impact wind pressure type pipeline waste rock removing device

Info

Publication number: CN201367917Y
Application number: CNU2009200198873U
Authority: CN
Inventors: 袁秋新; 刘永; 耿华锋; 王维
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-27
Filing date: 2009-03-27
Publication date: 2009-12-23
Anticipated expiration: 2019-03-27

Abstract

The utility model discloses an impact wind pressure type pipeline waste rock removing device which is characterized by consisting of a spiral feeder, a Roots blower, a wind material mixer and a waste rock transmission pipeline, wherein the wind material mixer is a pipeline shell body, the front end of which is provided with an air inlet; the wind material mixer is connected with the Roots blower through the air inlet; one side of the pipeline shell is provided with a feed inlet, and is connected with the outlet of the spiral feeder through the feed inlet; the back end of the pipeline shell is provided with a horn-shaped outlet, and is connected with the waste rock transmission pipeline through the horn-shaped outlet; and the waste rock transmission pipeline adopts a polymer PE pipe. The impact wind pressure type pipeline waste rock removing device can transmit waste rock blocks with large diameter, crushes the waste rocks easily, saves the crushing time, can effectively prevent the accumulation of fine waste rock particles, and avoids the blocking of the pipeline.

Description

Impact wind pressure type pipe waste rock discharge device

Technical field

The utility model relates to coal mine gob waste filling technical field.

Background technology

At present, in two technical problems of pit mining ubiquity: the one, a large amount of gangues is constantly carried to ground from the down-hole, occupies cultivated land that pile up like a mountain, and the pollution that hillock landslide, spontaneous combustion simultaneously brings also becomes the harm source of social recognition.The 2nd, the goaf natural caving causes roof caving, surface subsidence in the pit mining.In order to solve above-mentioned two problems, the someone takes not gug of spoil, direct mode in the underground filling goaf.This mode is called the waste filling technology.To be the down-hole be broken into particle powder below the 3mm with spoil to the waste filling technology relevant with the application, adds water and mix the back and be transported to the goaf with the spoil pump and carry out filling.Its weak point is, 1, because of the granularity of spoil fragmentation needs very carefully, so broken workload is big, efficient is low; 2, need to carry after the water mixing waste water source; 3, wet feed is carried and is caused pipeline blockage easily, influences normal filling operation.

The utility model content

For addressing the above problem, the utility model provides a kind of impact wind pressure type pipe waste rock discharge device.

The technical scheme of taking is: it is made of jointly feed screw, roots blower, wind feed mixer and defeated cash pipeline; Described wind feed mixer is a pipeline shell, and the front end of pipeline shell is provided with air intake, is connected with roots blower by air intake, and a side of pipeline shell is provided with charging aperture, is connected with the feed screw exit seal by charging aperture; The rear end of pipeline shell is provided with flaring exit, is connected with defeated cash pipeline by flaring exit.Defeated cash pipeline adopts macromolecule PE pipe.

Operating principle is: spoil is crushed to spoil piece below the particle diameter 50mm, with feed screw the spoil piece is delivered in the wind feed mixer, the impact wind pressure that roots blower produces is as power source, under the effect of impact wind pressure, spoil and the distinguished and admirable homogeneous mixture that in blender, forms the gas-solid two-phase, and send from horn mouth, by defeated cash pipeline the spoil piece is delivered to the goaf

The utility model has the advantages that:

The spoil piece footpath of 1, carrying is big, and broken spoil is easy, saves the broken time; Adopt dry feed, save the water source, and not sticky pipeline, transporting resistance is little, not plugging, and filling velocity is fast, the efficient height.

2, feed screw advances the extruding of spoil stratum granulosum helical layer, forms obturator in machine, thoroughly eliminates pipeline inverted ventilation phenomenon.

3, the impact disturbance that produces of the roots blower material that will sink at BOP constantly blows afloat, and can effectively prevent gathering of tiny spoil particle, avoids line clogging.

4, use the wind feed mixer that the impact wind pressure that roots blower provides is fully mixed with the spoil piece, form gas-solid two-phase homogeneous mixture; And enter transfer pipeline with floating shape, and little to the frictional force of pipeline, can not cause the pipeline blockage problem.

5, transfer pipeline adopts macromolecule PE pipe, and the pipeline inner wall self lubricity is good, can effectively reduce the pipeline inner wall resistance, improves spoil particle transport speed; And have abrasion resistance, can use for a long time.

6, can adopt concentrated frequency-changing control system to control, when distance filling operation face is longer, can improve the roots blower blast, reduce the defeated cash amount of feed screw simultaneously, realize quantitatively remote conveying; Otherwise when nearer, can reduce the roots blower blast, suitably improve the defeated cash amount of feeding screw, thereby how defeated the low coverage that realizes filling operation is apart from filling operation face.

7, owing to can realize carrying at a distance spoil, can make the downhole gangue whole fill, reduce the surface subsidence that the down-hole roof caving is caused, have good economy, society and safety benefit to the goaf.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

In the accompanying drawing: 1, crushing engine; 2, conveyer; 3, feed screw; 4, roots blower; 5, wind feed mixer; 6, defeated cash pipeline; The 7-pipeline shell, 8-air intake, 9-charging aperture, 10-flaring exit.。

The specific embodiment

Further specify enforcement of the present utility model below in conjunction with accompanying drawing.

As shown in Figure 1, the utility model is made up of feed screw 3, roots blower 4 and blower fan blender 5, described wind feed mixer 5 is to be provided with air intake 8 in the rear end of pipeline shell 7, be connected with roots blower 4 by air intake 8, one side of pipeline shell 7 has charging aperture 9, is connected with feed screw 3 exit seals by charging aperture 9; The front end of pipeline shell 7 is provided with flaring exit 10, is connected with defeated cash pipeline 6 by flaring exit 10.Defeated cash pipeline 6 adopts macromolecule PE pipe.

During work, crushing engine 1 is crushed to spoil below the particle diameter 50mm, send into feed screw 3 by conveyer 2, feed screw 3 is delivered to the spoil piece in the wind feed mixer 5, the impact wind pressure that roots blower 4 produces is as power source, make spoil and the distinguished and admirable homogeneous mixture that in wind feed mixer 5, forms the gas-solid two-phase, send, the spoil piece is delivered to the goaf by defeated cash pipeline 6 from tubaeform discharging opening 11.

Claims

1, a kind of impact wind pressure type pipe waste rock discharge device is characterized in that, it is made of jointly feed screw, roots blower, wind feed mixer and the defeated cash pipeline of macromolecule PE pipe; Described wind feed mixer is a pipeline shell, and the front end of pipeline shell is provided with air intake, is connected with roots blower by air intake, and a side of pipeline shell is provided with charging aperture, is connected with the feed screw exit seal by charging aperture; The rear end of pipeline shell is provided with flaring exit, is connected with defeated cash pipeline by flaring exit.