CN101530849A

CN101530849A - Pneumatic screening machine

Info

Publication number: CN101530849A
Application number: CN200810084937A
Authority: CN
Inventors: 张士友; 刘连志
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-10
Filing date: 2008-03-10
Publication date: 2009-09-16

Abstract

The invention relates to mine beneficiation equipment, in particular to mine winnowing equipment. The design adopts a pneumatic structure; the high fall leads the mineral powder to disperse sufficiently; the mineral powder disperses and falls uniformly by a vibration screen; an axial-flow fan blows the mineral powder to a certain distance; as the mineral powder contains various matter elements with different densities, the distances of the blown matters are different, and the linear speed of the movement of the blown matters are also different due to different density. Along the blown distances, due to different densities of the mineral powders, various matter elements with different blown distances and different linear speeds are dropped in different recovery troughs at different distances, thus achieving the separation effect of various matter elements of the mineral powder.

Description

Pneumatic screening machine

Technical field

Patent of the present invention relates to a kind of mine ore dressing equipment, especially a kind of mine pneumatic separator.Bring the breeze screening installation of a kind of simple and feasible, power saving, water-saving, raising output capacity, novel environment friendly for the screening of breeze.

Background technology

What the breeze screening installation that present known bargh uses adopted mostly all is that traditional water jigs optional equipment, also claims wet cleaning process, wet cleaning process screening installation such as rolling chute, rotation chute, vertical large helix angle chute, oscillating delivery chute or the like.Change equipment screening structure howsoever, its basic Design Mechanism still want a large amount of consumption water source, electric energy, through chemical reaction with breeze in each metalloid element screen.If contain the multiple components metallic element in the breeze, so just need repeat to screen several times, that is to say has several material elements in the breeze, just need do screening several times to breeze.This wet cleaning process output ratio that tradition bargh adopts, also unsatisfactory, and it is serious to consume a large amount of electric energy, water source, environmental pollution, because operating personnel's repeatable operation brings the corresponding product cost to improve, operating efficiency reduces or the like some undesirable elements.

Summary of the invention

In order to solve traditional wet cleaning process screening various unfavorable factors that breeze brought, reach and save electric energy, water source, reduce environmental pollution, reduce cost, improve the output ratio, the optimum efficiency that disposable screening is extracted to the breeze that contains multiple material element.Finally develop the novel Pneumatic screening machine that a kind of simple and feasible reaches the above-mentioned requirements effect through repetition test for many years.

This equipment Design Mechanism is to adopt pneumatic structure, high drop to make breeze separations that fully scatter, and through vibratory sieve breeze is scattered, and by the axial flow adjustable speed fan breeze is blown to necessarily not at a distance.Because the contained various material element density differences of breeze, the distance of being blown is also different so, the linear velocity of being walked by blowing because of the difference material element of density size is also different again, in blowing distance, make the different various material elements of breeze density, the material element that had nothing in common with each other by wind blows distance and linear velocity, fall into different accumulator tanks in different distance, reach the separating effect of the various material elements of breeze to the greatest extent.

Residue is not dropped into breeze in the accumulator tank, and to separate with each material element substantially, through axial flow blower, pipeline is blown in the recovery bin, through environmental protection treatment, flows out from the recovery bin pipeline.

The technical scheme that patent technical solution problem of the present invention is adopted is: make many speed governing axial flow blowers by oneself, be installed in sealing selection by winnowing case differing heights position, so that selection by winnowing case diverse location wind speed, wind-force is afraid of control rationally, the charging aperture position is provided with even charging vibratory sieve above the selection by winnowing case, screened material can fully be shaken loose and enter selection by winnowing case charging aperture uniformly, selection by winnowing case charging aperture has the charging of adjustment to adjust plate, this structure also is to fully take into account by sieve material density difference to reach the control charging rate, screened material flows into secondary vibration screening case through charging aperture and makes all fear vibration blanking in plane, this project organization is screened thing to be distributed on the height fall position can at the uniform velocity be scattered in the selection by winnowing case, the material that falls is forwards dispelled by the air quantity that axial flow blower produces rapidly, the various material elements that dispelled, because different its linear velocity of the walking about distances of density are also different, can fall into different material element accumulator tanks to the greatest extent, reach separating effect.

For guaranteeing optimal separation effect and reliability, the unique parallel tapering ajutage of sizing screening of design one cover in pneumatic lower box part structure, this structure Design has guaranteed the effect of material by density separation more fully, and screened thing is further pressed 45 from clothes by parallel tapering ajutage ⁰Direction is blown separation, makes the screening material can reach higher output ratio, and the reliability of separating.

The specific embodiment:

Fig. 1 patent structure figure of the present invention

Fig. 2 is parallel tapering ajutage structure

Description of drawings

Among the figure: Shou Bing 4, vibration screening case 5, vibrating motor 6, shafting oil blower fan 7,8,9, motor 10, parallel tapering ajutage 11, accumulator tank 12, air quantity adjustment Shou Bing 13, axial flow blower 14, motor 15, recovery bin 16, recovery bin outlet 17 are adjusted in pneumatic case 1, charging vibratory sieve 2, charging aperture 3, charging.

Below in conjunction with accompanying drawing embodiment patent of the present invention is described further: from the breeze of charging vibratory sieve 5 through charging aperture 3, quantitative feeding is adjusted Shou Bing 4, evenly fall into vibration screening case 2, vibration screening case 2, uniformly fear control of breeze vibration is pulled surface and the even parallel pneumatic case 1 that falls at vibration screening case 2 sieves, because pneumatic case has enough height, make the breeze drop big, from axial flow blower 7,8, under the 9 wind-force effects, make the density gravity drop that differs in size, blow distance, the different material element of linear velocity blows out not equidistant, fall into different accumulator tanks 12, smaller or the smaller material element of density can be by axial flow blower 7,8,9 (axial flow blower wind speed root distance material element density size is adjusted the wind speed flow and is generally regulated and control at 5-6m/s) far away or more farther of blowing. be provided with a plurality of accumulator tanks 12 in pneumatic case 1 bottom and make the material element of different densities fall into accumulator tank 12 by diverse location, pneumatic case 1 below is provided with the unique branch of a cover and screens parallel tapering ajutage 11, parallel tapering ajutage 11 will be from pneumatic case 1 bottom by axial flow blower 14, wind regime is delivered to air channel, pneumatic case 1 bottom, adjust Shou Bing 13 through air quantity, parallel tapering ajutage 11 wind speed of diverse location are mixed well, general air rate adjustment 1.3-1.5m/s evenly will fall breeze again with 45 from the air quantity of parallel tapering ajutage 11⁰Blow afloat forward and repeat auxiliary precision sieve Choosing. Surplus materials through axial flow blower 7,8,9,14 unite blow down enter recovery bin 16, After the recovery bin environmental protection treatment, flow out from pipeline 17.

From axial flow blower 7,8,9 power is to be finished by motor 15 by axial flow blower 14, power that motor 10 is finished.

Patent Pneumatic screening machine of the present invention also can be used for the different densities different material and makes the screening mask work.

Claims

1 described Pneumatic screening machine bellows structure design.

The parallel tapering ajutage of 2 described Pneumatic screening machines.