CN207193707U - Gravitational dust collecting device and asphalt mixing plant - Google Patents

Abstract

It the utility model is related to a kind of gravitational dust collecting device and asphalt mixing plant, wherein gravitational dust collecting device is included into gas storehouse (1), gravitational dust collection storehouse (2) and go out gas storehouse (3), enter gas storehouse to be used to import ash-laden gas, gravitational dust collection storehouse is arranged on the downstream into gas storehouse, and at least part dust in ash-laden gas is excluded by Action of Gravity Field, flue gas after purification is discharged by going out gas storehouse, guide vane (51) is provided with gravitational dust collection storehouse, guide vane is used for carrying out dedusting and guiding by the flue gas in gravitational dust collection storehouse, the water conservancy diversion adjustable angle of guide vane.The utility model is by setting the adjustable guide vane of water conservancy diversion angle, overcome the limitation of gravitational dust collecting device in the prior art, gravitational dust collecting device is allowd to adjust the water conservancy diversion angle of guide vane at any time according to the actual operating mode of asphalt mixing plant, so as to realize the adaptive performance of water conservancy diversion angle, ensure efficiency of dust collection, meet dust removal requirement.

Description

Gravitational dust collecting device and asphalt mixing plant

Technical field

Road building machine technical field is the utility model is related to, more particularly to a kind of gravitational dust collecting device and asphalt mixing are set It is standby.

Background technology

With the gradual increase of infrastructure development project, a large amount of outmoded road surfaces need to overhaul, for asphalt Demand increasingly increases, the needs based on energy-saving and emission-reduction, environmental protection, for the technical of asphalt mixing plant (also known as asphalt mixing plant) Can index request also more and more higher.Gravitational dust collecting device for asphalt mixing plant requires powder of the recovery particle diameter more than 75 μm Dirt, and existing gravitational dust collecting device is generally fixed structure, versatility is poor, when the production capacity or aggregate of mixing station contain When dirt ratio changes, gravitational dust collecting device can not carry out effectively Adaptive matching, cause to reclaim particle diameter and the rate of recovery not It can meet to require, influence gravitational dust collection effect, and then influence the dust emission of mixing station, cause the atmosphere pollution of surrounding environment.

The gravitational dust collecting device species of existing asphalt mixing plant is more, as shown in figure 1, being a kind of deduster in the prior art Structural representation, the deduster using substantially in Y types dust board 10 carry out dedusting；As shown in Fig. 2 it is another in the prior art A kind of structural representation of deduster, if the ash bucket in the deduster carries the deflector 20 of dry plate interlaced arrangement, the deflector 20 uprush directions front arrangement；As shown in figure 3, there is a kind of dedusting ash bucket in the prior art, it is provided with the ash bucket Interlaced waveform spoiler 30, spoiler 30 is along airflow direction fixed and arranged.

Above-mentioned deduster of the prior art, although the form of deflector and mounting means are had nothing in common with each other, deflector is equal It is fixedly mounted on gravitational dust collecting device, i.e., the problem of deflector is motionless, and this technical scheme is present is：Deflector is Fixed, it is constant and do not have the system of limit value requirement to dedusting particle diameter to be only adapted to ventilation, when mixing station productivity ratio change, Systematic air flow will also follow change, now will also be changed by the grain diameter that gravitational dust collecting device is collected, collection rate also will Change, but deflector can not carry out automatic adjusument, therefore can not meet that fine aggregate during mixing station working conditions change accurately returns The requirement of receipts.

It should be noted that the information for being disclosed in the utility model background section is merely intended to increase to this practicality newly The understanding of the general background of type, and be not construed as recognizing or imply that the information structure has been art technology in any form Prior art well known to personnel.

Utility model content

The purpose of this utility model is to propose a kind of gravitational dust collecting device and asphalt mixing plant, to solve in the prior art Gravitational dust collecting device can not according to the actual operating mode of mixing station carry out automatic adjusument the problem of.

To achieve the above object, the utility model provides a kind of gravitational dust collecting device, including enters gas storehouse, gravitational dust collection storehouse With go out gas storehouse, enter gas storehouse be used for import ash-laden gas, gravitational dust collection storehouse is arranged on the downstream into gas storehouse, and is arranged by Action of Gravity Field Except at least part dust in ash-laden gas, the flue gas after purification is discharged by going out gas storehouse, is provided with and leads in gravitational dust collection storehouse Blade is flowed, guide vane is used for carrying out dedusting and guiding by the flue gas in gravitational dust collection storehouse, and the water conservancy diversion angle of guide vane can Adjust.

Further, link gear is additionally provided with gravitational dust collection storehouse, guide vane is including multiple, by driving link gear The water conservancy diversion angle of multiple guide vanes can be driven while changed.

Further, link gear includes multigroup, and every group of link gear can drive the water conservancy diversion of at least one guide vane Angle changes, and multigroup link gear can drive the identical or different angle of the water conservancy diversion angulation change of corresponding guide vane Degree.

Further, link gear can drive guide vane to rotate.

Further, link gear includes multigroup jointed gear unit and/or rack and pinion drive mechanism, to pass through driving The gear in drive rod and/or rack and pinion drive mechanism in jointed gear unit drives guide vane to rotate.

Further, jointed gear unit includes drive rod, rotating bar and power transmission shaft, and drive rod and rotating bar are rotatably Connection, power transmission shaft are arranged on gravitational dust collection storehouse,

Power transmission shaft can be rotated around own axes, and power transmission shaft is fixedly connected with rotating bar, guide vane and power transmission shaft Connection, to drive rotating bar to rotate by driving drive rod, the rotation of rotating bar can drive power transmission shaft and guide vane to turn It is dynamic；

Or power transmission shaft is fixed relative to gravitational dust collection storehouse, rotating bar can be around drive axis, and guide vane is with rotating Bar connects, and to drive rotating bar around drive axis by driving drive rod, while drives guide vane to rotate.

Further, the both ends of rotating bar are connected to the first drive rod and the second drive rod, to pass through driving first Drive rod drives rotating bar to rotate, and then drives the guide vane coordinated with rotating bar to rotate；Meanwhile the rotation for passing through rotating bar The second drive rod can also be driven to move, to drive the rotation of another rotating bar be connected with the second drive rod, and then drive and Another guide vane that another rotating bar coordinates rotates.

Further, the side of rotating bar is provided with the fastener with opening, and power transmission shaft is passed through and is arranged in rotating bar Mounting hole simultaneously passes through fastener, and bolt, so that the opening of fastener to be locked, realizes consolidating for power transmission shaft and rotating bar through fastener Fixed connection.

Further, guide vane is provided with mounting bracket, is provided with mounting bracket and is connected simultaneously with mounting bracket and guide vane Connecting rod, connecting rod is connected with power transmission shaft or rotating bar.

Further, mounting bracket forms triangular support structure with guide vane.

Further, rack and pinion drive mechanism include gear and with the intermeshing rack of gear, guide vane and tooth Wheel connection, to drive guide vane to rotate when drive gear rotates, while moved with carry-over bar, and pass through rack drives and its Another pinion rotation of engagement, and then drive another guide vane to rotate.

Further, the surface of guide vane is plane and/or curved surface.

Further, curved surface is arc surface, elliptical arc surface or parabola cambered surface.

Further, the water conservancy diversion angle of guide vane is 30 °~65 °.

Further, gravitational dust collecting device also includes controller and the detection means being arranged on out in gas storehouse, detection means For detecting the size of the parameter preset in gas storehouse, controller is connected with detection means signal, examined with receiving detection device The parameter signal of survey, and adjust according to parameter signal the water conservancy diversion angle of guide vane.

Further, detection means includes granularity of dust detection means, and parameter preset includes granularity of dust.

Further, detection means includes air quantity or wind pressure detection device, and parameter preset includes air quantity or blast.

Further, the end of gravitational dust collecting device is provided with blower fan, and blower fan is used for the gas for being aspirated through gravitational dust collecting device Flow and by outside the air discharge storehouse after purification, detection means includes fan rotation speed detecting device or air door of fan Measuring opening Device, parameter preset include rotation speed of fan or air door of fan aperture.

To achieve the above object, the utility model additionally provides a kind of asphalt mixing plant, including above-mentioned gravitational dust collection Device.

Based on above-mentioned technical proposal, the utility model is overcome existing by setting the adjustable guide vane of water conservancy diversion angle The limitation of gravitational dust collecting device in technology so that gravitational dust collecting device can be according to the actual operating mode of asphalt mixing plant And the water conservancy diversion angle of guide vane is adjusted at any time, so as to realize the adaptive performance of water conservancy diversion angle, it is ensured that efficiency of dust collection, meet to remove Dirt requirement.

Brief description of the drawings

Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application, Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper Limit.In the accompanying drawings：

Fig. 1 is a kind of structural representation of deduster in the prior art.

Fig. 2 is the structural representation of another deduster in the prior art.

Fig. 3 is a kind of structural representation of dedusting ash bucket in the prior art.

Fig. 4 is the structural representation of the utility model gravitational dust collecting device one embodiment.

Fig. 5 is the structural representation of guiding device in the utility model gravitational dust collecting device one embodiment.

Fig. 6 is the structural representation of guide vane in the utility model gravitational dust collecting device one embodiment.

In figure：

10th, dust board；20th, deflector；30th, spoiler；

1st, gas storehouse is entered；2nd, gravitational dust collection storehouse；3rd, gas storehouse is gone out；4th, grey hopper；5th, guiding device；

51st, guide vane；52nd, rotating bar；53rd, drive rod；54th, sell；55th, fastener；56th, bolt；57th, power transmission shaft；58、 Mounting bracket；59th, connecting rod.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is carried out clear, complete Ground describes.Obviously, described embodiment is only part of the embodiment of the present utility model, rather than whole embodiments. Based on embodiment of the present utility model, institute that those of ordinary skill in the art are obtained under the premise of creative work is not made There is other embodiment, belong to the scope of the utility model protection.

In description of the present utility model, it is to be understood that term " " center ", " transverse direction ", " longitudinal direction ", "front", "rear", The orientation or position relationship of the instruction such as "left", "right", " on ", " under ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that For the limitation to scope of protection of the utility model.

It is adaptive to overcome gravitational dust collecting device of the prior art can not be carried out according to the actual operating mode of mixing station The problem of regulation, the utility model proposes a kind of improved gravitational dust collecting device of structure.

As shown in Figure 4 and Figure 5, in an illustrative examples of gravitational dust collecting device provided by the utility model, The gravitational dust collecting device includes into gas storehouse 1, gravitational dust collection storehouse 2 and goes out gas storehouse 3, enters gas storehouse 1 and is used to import ash-laden gas, gravity removes Dirt storehouse 2 is arranged on into the downstream of gas storehouse 1, and excludes at least part dust in ash-laden gas by Action of Gravity Field, is gone out gas storehouse 3 and is set Put and discharged in the downstream in gravitational dust collection storehouse 2, the flue gas after purification by going out gas storehouse 3.

Guiding device 5 is provided with gravitational dust collection storehouse 2, guiding device 5 includes guide vane 51, and guide vane 51 is used for logical The flue gas for crossing gravity dedusting cabin 2 carries out dedusting and guiding, the water conservancy diversion adjustable angle of guide vane 51.

Wherein, water conservancy diversion angle refers to the angle between the tangent line of guide vane 51 and horizontal direction, with reference to shown in figure 6, β Angle is the channelization angle of the guide vane 51.

In the above-described embodiments, by setting the adjustable guide vane 51 of water conservancy diversion angle, gravity in the prior art is overcome The limitation of dust arrester so that gravitational dust collecting device can be adjusted at any time according to the actual operating mode of asphalt mixing plant The water conservancy diversion angle of guide vane, so as to realize the adaptive performance of water conservancy diversion angle, it is ensured that efficiency of dust collection, meet dust removal requirement.

In the above-described embodiments, gravitational dust collecting device can also include grey hopper 4, and grey hopper 4 is arranged on gravitational dust collection storehouse 2 Lower section, for collecting by the collision with guide vane 51 dust that falls under gravity.The bottom of grey hopper 4 is also It can be connected with helical feed pipeline, in order to convey the dust of collection in time.

In the above-described embodiments, the bottom for entering gas storehouse 1 preferably has angle of inclination, in order to arrange upstream drying drum The high-temperature dust-containing flue gas gone out is guided and entered in gravitational dust collection storehouse 2.

In a preferred embodiment of gravitational dust collecting device provided by the utility model, also set in gravitational dust collection storehouse 2 There is link gear, guide vane 51 is including multiple, by driving link gear to drive the channelization angle of multiple guide vanes 51 Degree changes simultaneously.By setting link gear, the water conservancy diversion angulation change of one of guide vane 51 can driven Meanwhile the water conservancy diversion angle of other guide vanes 51 is also changed, the linkage between each guide vane 51 can be achieved.

Wherein, the driving of link gear can also set drive mechanism to be driven, drive mechanism by manual drive Motor, cylinder or oil cylinder etc. can be used.

Further, link gear can include multigroup, and every group of link gear can drive at least one guide vane 51 Water conservancy diversion angle change, i.e. every group of link gear corresponding one, two or more guide vanes 51；Multigroup link gear energy The water conservancy diversion angulation change identical angle of guide vane 51, i.e., multigroup link gear have synchronism corresponding to enough drives；It is multigroup The action of link gear can also be asynchronous so that the water conservancy diversion angle of different guide vanes 51 can change it is different big It is small, to adapt to the different demands of more multi-state.

To realize the change of water conservancy diversion angle, it is preferable that link gear can drive guide vane 51 to rotate, water conservancy diversion leaf Piece 51 changes water conservancy diversion angle by the form of rotation.

For link gear, its specific constructive form can have multiple choices, as long as can realize that it is acted on.

Preferably, link gear includes multigroup jointed gear unit and/or rack and pinion drive mechanism, is driven with passing through The gear in drive rod 53 and/or rack and pinion drive mechanism in jointed gear unit is moved to drive guide vane 51 to rotate. The transmission efficiency of jointed gear unit and rack and pinion drive mechanism, stability is good, and reliability is high.

As a specific embodiment of jointed gear unit, as shown in figure 5, jointed gear unit include drive rod 53, Rotating bar 52 and power transmission shaft 57, drive rod 53 are rotatably attached with rotating bar 52, and power transmission shaft 57 is arranged on gravitational dust collection storehouse 2 On, power transmission shaft 57 can be rotated around own axes, and power transmission shaft 57 is fixedly connected with rotating bar 52, guide vane 51 and transmission Axle 57 connects, and to drive rotating bar 52 to rotate by driving above-mentioned drive rod 53, the rotation of rotating bar 52 can drive biography Moving axis 57 and guide vane 51 rotate.

In this embodiment, side plate is provided with gravitational dust collection storehouse 2, power transmission shaft 57 may be mounted on side plate, be driven simultaneously Axle 57 itself can rotate, guide vane 51 be arranged on power transmission shaft 57 on, so when drive rod 53 is driven, can drive with Its rotating bar 52 connected is rotated, and rotating bar 52 is fixedly connected with power transmission shaft 57, thus power transmission shaft 57 also can concomitant rotation, biography The rotation of moving axis 57 can drive guide vane 51 to rotate, so as to realize the regulation to water conservancy diversion angle.

In another specific embodiment, power transmission shaft 57 is fixed relative to gravitational dust collection storehouse 2, and rotating bar 52 can be around transmission Axle 57 is rotated, and guide vane 51 is connected with rotating bar 52, to drive rotating bar 52 around biography by driving above-mentioned drive rod 53 Moving axis 57 rotates, while drives guide vane 51 to rotate.

In this embodiment, power transmission shaft 57 itself does not rotate, but rotating bar 52 is set in the end of power transmission shaft 57, Therefore rotating bar 52 can rotate with the rotation of drive rod 53 around power transmission shaft 57, and guide vane 51 is arranged on rotating bar On 52, therefore the rotation of rotating bar 52 can directly drive guide vane 51 to rotate, so as to realize the water conservancy diversion to guide vane 51 The regulation of angle.

Further, the both ends of rotating bar 52 are connected to the first drive rod and the second drive rod, to pass through driving the One drive rod drives rotating bar 52 to rotate, and then drives the guide vane 51 coordinated with rotating bar 52 to rotate；Meanwhile pass through rotation The rotation of bar 52 can also drive the second drive rod to move, to drive turning for another rotating bar 52 being connected with the second drive rod It is dynamic, and then drive another guide vane 51 coordinated with another rotating bar 52 to rotate, so just realize only by driving first Drive rod can make the purpose that the channelization angle of multiple guide vanes 51 changes.

In two specific embodiments of above-mentioned jointed gear unit, drive rod 53 and rotating bar 52 can be connected by pin 54 Connect, so that drive rod 53 can rotate relative to rotating bar 52, so that jointed gear unit has more frees degree.

In first specific embodiment of above-mentioned jointed gear unit, consolidating between rotating bar 52 and power transmission shaft 57 is realized Surely the concrete form connected has many kinds, such as, the fastener 55 with opening can be set in the side of rotating bar 52, wherein Fastener 55 and rotating bar 52 can be with relatively independent, and are linked together by the form such as welding or being threadedly coupled, can also one It is body formed, i.e. a part of the fastener 55 as rotating bar 52.Power transmission shaft 57 passes through the mounting hole being arranged in rotating bar 52 simultaneously Through fastener 55, bolt 56, so that the opening of fastener 55 to be locked, realizes power transmission shaft 57 and rotating bar 52 through fastener 55 Be fixedly connected.

It is provided with addition, mounting bracket 58 can be set on guide vane 51, in mounting bracket 58 simultaneously with mounting bracket 58 and leading The connecting rod 59 that blade 51 connects is flowed, connecting rod 59 is connected with power transmission shaft 57 or rotating bar 52.Specifically, connecting rod 59 and transmission It can be attached between axle 57 or rotating bar 52 by welding, spiral shell peg or pin.Connecting rod 59 is preferably with mounting bracket 58 and leading Stream blade 51 is welded to connect, to improve connection reliability.

Preferably by angle steel, mounting bracket 58 may be provided at the middle part of guide vane 51 or close to the position of center of gravity mounting bracket 58 Put, to form preferable supporting role to guide vane 51.

As shown in fig. 6, mounting bracket 58 forms triangular support structure with guide vane 51, to improve stability.

Certainly, jointed gear unit is not limited to above listed several forms, and other can realize the company of same purpose Bar transmission mechanism also should be within the scope of protection of the utility model.

As a kind of specific embodiment of rack and pinion drive mechanism, rack and pinion drive mechanism includes gear and and gear Intermeshing rack, guide vane 51 are connected with gear, to drive guide vane 51 to rotate when drive gear rotates, simultaneously Band carry-over bar moves, and another pinion rotation engaged by rack drives, and then drives another guide vane 51 to rotate.

Certainly, scheme of the link gear except individually using rack and pinion drive mechanism using jointed gear unit or individually Before, the scheme that jointed gear unit and rack and pinion drive mechanism can also be used to mix, a portion guide vane 51 Linkage purpose is realized by jointed gear unit, and another part guide vane 51 realizes connection by rack and pinion drive mechanism Dynamic purpose.

In above-mentioned each embodiment, the surface of guide vane 51 (it is larger to refer here to surface area in guide vane Surface) can be plane (i.e. guide vane 51 is flat type), or curved surface (for example guide vane 51 is arc-shaped leaf Piece), can also be any number plane and curved surface arbitrary arrangement combination, such as plane-curved surface, plane-curved surface-plane or Person's curved surface-plane-curved surface etc..

When the surface of guide vane 51 is curved surface, it is therefore preferable to arc surface, elliptical arc surface or parabola cambered surface, these forms Curved surface have certain streamlined, the flowing of air-flow can be made more smooth, reduce flow perturbation, reduce air-flow by when make Into vortex, reduce the pressure loss caused by vortex.In addition, when dust-contained airflow impacts guide vane 51, curved Formula can reduce the erosive wear to guide vane 51, while can also reduce the formation of dust stratification.

In above-mentioned each embodiment, when guide vane 51 is arc shaped blade, it is preferable that arc shaped blade direction and air-flow The opposite direction in direction, as shown in figure 4, arc shaped blade is set down, i.e., the center of circle of arc shaped blade is located at the lower section of blade, so It can not only make to come from the back side that the ash-laden gas into gas storehouse 1 just impinges upon arc shaped blade, big particle diameter dust is fallen, and And flue gas stream can also be avoided to be gathered at arc shaped blade, airflow can be made more smooth, reduce the hair of air-flow vortex It is raw, reduce aerodynamic loss.

In above-mentioned each embodiment, the water conservancy diversion angle of guide vane 51 is preferably 30 °~65 °, for example, 30 °, 40 °, 50 ° and 60 °.Channelization angle spends the big or how small decline that can cause efficiency of dust collection, therefore channelization angle is maintained at suitable angle It is favorably improved dust removing effects and efficiency of dust collection.

As the further improvement of the utility model gravitational dust collecting device embodiment, gravitational dust collecting device can also include control Device processed and the detection means being arranged on out in gas storehouse 3, detection means are used for the size for detecting the parameter preset in gas storehouse 3, control Device processed is connected with detection means signal, the parameter signal detected with receiving detection device, and is led according to parameter signal to adjust Flow the water conservancy diversion angle of blade 51.By setting controller and detection means, it is possible to achieve guide vane 51 automatically adjusts, and improves The adaptive ability of gravitational dust collecting device.

In a preferred embodiment, detection means includes granularity of dust detection means, and parameter preset includes dust grain Degree.The granularity of dust in the flue gas stream in outlet storehouse 3 is flowed through by the detection of granularity of dust detection means, can be according to granularity of dust Size adaptively adjust the water conservancy diversion angle of guide vane 51.

Specifically, granularity of dust setting value can be pre-set in controller, and is provided for driving link gear Drive mechanism, controller are connected with drive mechanism.

Granularity of dust in granularity of dust detection means detects the flue gas stream for flowing through out gas storehouse 3 exceedes default powder During grit degree setting value, drive mechanism can be controlled by controller, it is driven link gear, to drive 51 turns of guide vane It is dynamic, and increase its water conservancy diversion angle, to increase the collision probability of ash-laden gas and guide vane 51, enable more dusts by Separate and under fall in ash bucket storehouse 4, improve dust removing effects, meet dust removal requirement；

And when granularity of dust detection means detects that the granularity of dust in the flue gas stream for flowing through out gas storehouse 3 is less than or equal to During default granularity of dust setting value, the measure being failure to actuate can be taken, drive mechanism can also be controlled by controller, make it Link gear is driven, to drive guide vane 51 to rotate, and its water conservancy diversion angle is suitably reduced, so that airflow is more suitable Freely, the dedusting time is shortened.

In addition to water conservancy diversion angle is adjusted by detecting granularity of dust, usually, when asphalt mixing plant When itself production capacity or aggregate dust-laden ratio change, the air quantity or blast that go out in gas storehouse 3 and gravitational dust collecting device is arranged on The rotating speed and throttle opening of the blower fan of end can be also adjusted therewith, and these parameters sometimes can be according to the warp of staff Test and be adjusted, and the water conservancy diversion angle of guide vane 51 is difficult then to be adjusted by experience, therefore on this basis, Ke Yishe Special detection means is put, air quantity, blast, rotation speed of fan or the blower fan wind of production capacity or granularity of dust can be reflected with detection Door aperture, and accordingly by the water conservancy diversion angle of controller regulation guide vane 51.

Specifically, in another preferred embodiment, detection means includes air quantity or wind pressure detection device, above-mentioned Parameter preset includes air quantity or blast.The air quantity or blast in gas storehouse 3, Ke Yigen are detected by air quantity or wind pressure detection device The water conservancy diversion angle of guide vane 51 is adaptively adjusted according to the size of air quantity or blast.

When air quantity or blast increase, the production capacity or aggregate dust-laden ratio that illustrate asphalt mixing plant have also increased Greatly, therefore now drive mechanism can be controlled by controller, it is driven link gear, to drive guide vane 51 to rotate, and Increase its water conservancy diversion angle, to increase the collision probability of ash-laden gas and guide vane 51, more dusts is separated Fallen under and in ash bucket storehouse 4, improve dust removing effects.

In yet another preferred embodiment, the end of gravitational dust collecting device is provided with blower fan, and blower fan is used to be aspirated through weight The air-flow of power dust arrester simultaneously discharges the air after purification outside storehouse, and detection means includes fan rotation speed detecting device or wind Machine throttle opening detection means, parameter preset include rotation speed of fan or air door of fan aperture.By fan rotation speed detecting device or The rotating speed of air door of fan Measuring opening device detection blowing machine and the throttle opening of blower fan, can be according to the rotating speed and blower fan of blower fan The size of throttle opening adaptively adjust the water conservancy diversion angle of guide vane 51.

When rotation speed of fan increase or throttle opening increase, illustrate the production capacity or aggregate dust-laden ratio of asphalt mixing plant Example has also increased, and now also can control drive mechanism by controller, it is driven link gear, to drive guide vane 51 Rotate, and increase its water conservancy diversion angle, to increase the collision probability of ash-laden gas and guide vane 51, enable more dusts Be separated and under fall in ash bucket storehouse 4, improve dust removing effects.

Certainly, for adjusting the parameter of water conservancy diversion angle, to be not limited in the above several, can be led using other as regulation The parameter of flow angle foundation come realize regulation purpose technical scheme also should be within the scope of protection of the utility model, here not Repeat again.

Based on above-mentioned gravitational dust collecting device, the utility model also proposes a kind of asphalt mixing plant, and the asphalt mixing is set It is standby to include above-mentioned gravitational dust collecting device.Positive technique effect is same possessed by gravitational dust collecting device in above-mentioned each embodiment Suitable for asphalt mixing plant, repeat no more here.

Certainly, each embodiment of gravitational dust collecting device provided by the utility model is not limited in stirring applied to pitch In mixing equipment, can also be applied to other needs in the engineering mechanical device of dedusting, allows it to adapt to the change of actual condition Change, improve the adaptive performance of guide vane.

One embodiment of 4~6 pairs of the utility model gravitational dust collecting devices and asphalt mixing plant below in conjunction with the accompanying drawings Concrete structure and the course of work illustrate：

As shown in figure 4, the gravitational dust collecting device includes into gas storehouse 1, gravitational dust collection storehouse 2, grey hopper 4 and goes out gas storehouse 3.Its In, enter the upper, open end of gas storehouse 1 and be connected with the gas exhaust piping of drying drum.The downstream for entering gas storehouse 1 is gravity dedusting cabin 2, Guiding device 5 is provided with gravitational dust collection storehouse 2, the water conservancy diversion angle of guide vane 51 can be adjusted according to system parameter variations, to adapt to The dust removal requirement of variable working condition.Guiding device 5 is installed in gravitational dust collection storehouse 2, reclaimed by adjusting the angulation change of guide vane 51 The size and collection rate of dust granules.Grey hopper 4 is located at the lower end in gravitational dust collection storehouse 2, and its underpart communicates with helical feed pipeline, It is easy to the aggregate dust that conveying is collected in time.Go out gas storehouse 3 and be located at the downstream of gravitational dust collection storehouse 2, the flue gas stream after purification is arranged Go out.

As shown in figure 5, guiding device 5 includes guide vane 51, rotating bar 52, drive rod 53, pin 54, fastener 55, spiral shell Bolt 56 and power transmission shaft 57.Connected between rotating bar 52 and power transmission shaft 57 by bolt 56, rotating bar 52 passes through pin with drive rod 53 54 connections, guide vane 51 are arranged on power transmission shaft 57, and nethermost one end of drive rod 53 is connected with rotating bar 52, another End can be connected with drive mechanism, driven above-mentioned drive rod 53 to realize the rotation of rotating bar 52 by drive mechanism, turned The rotation of lever 52 can drive power transmission shaft 57 to rotate, and then drive guide vane 51 to rotate.

As shown in fig. 6, guide vane 51 is arc shaped blade, connecting rod 59 and mounting bracket 58 are additionally provided with guide vane 51. Mounting bracket 58 is connected by spot welding with connecting rod 59, and is connected by way of spot welding with guide vane 51, it is ensured that connecting rod 59 With the position of guide vane 51.Connecting rod 59 is connected with power transmission shaft 57 by modes such as spiral shell peg or pins, and rotating bar 52 rotates When, by power transmission shaft 57 and connecting rod 59 guide vane 51 can be driven to rotate.

It is outside when external rotating controlling organization, which receives, is arranged on out feedback signal that the monitoring unit of gas storehouse 3 is sent Rotation controling mechanism drives drive rod 53 to perform action, drives coupled rotating bar 52 to rotate by drive rod 53, and then Guide vane 51 is driven to perform rotational action, the action transmission between all rotating bars 52 and drive rod 53 so that all water conservancy diversion The synchronous axial system of blade 51, complete the instruction action of external control mechanisms.

Granularity of dust detection means and air quantity or wind pressure detection device can be set in gas storehouse 3 going out, when asphalt mixing plant When itself production capacity or aggregate dust-laden ratio change, the dust in gravitational dust collecting device exit can be detected by detection means Granularity and air quantity or blast size, the detection data of detection means can be transmitted to controller, and controller is according to detection numerical value and in advance The predetermined value first set is compared, and different instruction is sent according to comparative result, rotate drive rod 53 by drive mechanism, And then the water conservancy diversion angle of guide vane 51 is adjusted, until dust concentration detection numerical value reaches sets requirement.

In actual motion, the high-temperature dust-containing flue gas discharged through drying drum removes asphalt mixing plant into gravity by the road Dirt device enters gas storehouse 1, and the barrier effect through tilting bulkhead travels forward, into gravitational dust collection storehouse 2 after run into and arrange from top to bottom The guiding device 5 of row, big particle diameter dust fall after being collided with guide vane 51, are used for into the bottom of gravitational dust collection storehouse 2 The grey hopper 4 of dust, is transferred out through helix transporting device.Small particle dusty gas continues to pull away from gravitational dust collection storehouse 2, leads to Cross out gas storehouse 3 and enter next stage deduster.When dust-contained airflow passes through the detection means being arranged on out in gas storehouse 3, detection means can Granularity of dust to air-flow, the air quantity gone out in gas storehouse 3 or blast are detected, and detection signal is sent to controller, controller Can be by it compared with the setting value pre-set, when detection numerical value exceedes setting value, controller can be sent out to drive mechanism Control signal is sent, to control drive mechanism to drive drive rod 53 to perform action, coupled rotation is driven by drive rod 53 Bar 52 rotates, and then drives power transmission shaft 57 and guide vane 51 to perform rotational action, and then drives all rotating bars 52 and driving Execution transmission between bar 53 so that all synchronous axial systems of guide vane 51, control action is completed, until going out at gas storehouse 3 Untill detection numerical value reaches sets requirement.

Pass through the explanation to the utility model gravitational dust collecting device and multiple embodiments of asphalt mixing plant, it can be seen that The utility model gravitational dust collecting device and asphalt mixing plant embodiment are by setting the adjustable guide vane of water conservancy diversion angle so that Gravitational dust collecting device has higher general matching, adapts to different production capacity demands, while can also strengthen gravitational dust collection dress Put the adaptation matching for actual production working conditions change, it is ensured that the efficiency of dust collection of gravitational dust collecting device, dust removing effects are improved, it is full Sufficient emission request.

Finally it should be noted that：Above example is only illustrating the technical solution of the utility model rather than it is limited System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model Among scope.

Claims (19)

1. a kind of gravitational dust collecting device, it is characterised in that described including entering gas storehouse (1), gravitational dust collection storehouse (2) and going out gas storehouse (3) Enter gas storehouse (1) to be used to import ash-laden gas, the gravitational dust collection storehouse (2) be arranged on it is described enter gas storehouse (1) downstream, and pass through weight Power effect excludes at least part dust in the ash-laden gas, the flue gas after purification by it is described go out gas storehouse (3) discharge, Guide vane (51) is provided with the gravitational dust collection storehouse (2), the guide vane (51) is used for passing through the gravitational dust collection storehouse (2) flue gas carries out dedusting and guiding, the water conservancy diversion adjustable angle of the guide vane (51).

2. gravitational dust collecting device according to claim 1, it is characterised in that be additionally provided with connection in the gravitational dust collection storehouse (2) Motivation structure, the guide vane (51) is including multiple, by driving the link gear to drive multiple guide vanes (51) water conservancy diversion angle changes simultaneously.

3. gravitational dust collecting device according to claim 2, it is characterised in that the link gear includes multigroup, every group of institute Stating link gear can drive the water conservancy diversion angle of at least one guide vane (51) to change, multigroup link gear The identical or different angle of the water conservancy diversion angulation change of the guide vane (51) corresponding to can driving.

4. gravitational dust collecting device according to claim 2, it is characterised in that the link gear can drive the water conservancy diversion Blade (51) rotates.

5. gravitational dust collecting device according to claim 4, it is characterised in that the link gear includes multigroup link transmission Mechanism and/or rack and pinion drive mechanism, with by driving drive rod (53) and/or the tooth in the jointed gear unit The gear in rack gear is taken turns to drive the guide vane (51) to rotate.

6. gravitational dust collecting device according to claim 5, it is characterised in that the jointed gear unit includes drive rod (53), rotating bar (52) and power transmission shaft (57), the drive rod (53) are rotatably attached with the rotating bar (52), the biography Moving axis (57) is arranged on the gravitational dust collection storehouse (2),

The power transmission shaft (57) can rotate around own axes, and the power transmission shaft (57) and the fixed company of the rotating bar (52) Connect, the guide vane (51) is connected with the power transmission shaft (57), to drive described turn by driving the drive rod (53) Lever (52) rotates, and the rotation of the rotating bar (52) can drive the power transmission shaft (57) and the guide vane (51) to turn It is dynamic；

Or the power transmission shaft (57) is fixed relative to the gravitational dust collection storehouse (2), the rotating bar (52) can be around the biography Moving axis (57) rotates, and the guide vane (51) is connected with the rotating bar (52), with by drive the drive rod (53) come Drive the rotating bar (52) to be rotated around the power transmission shaft (57), while drive the guide vane (51) to rotate.

7. gravitational dust collecting device according to claim 6, it is characterised in that the both ends of the rotating bar (52) connect respectively There are the first drive rod and the second drive rod, with by driving first drive rod to drive the rotating bar (52) to rotate, and then The guide vane (51) coordinated with the rotating bar (52) is driven to rotate；Meanwhile pass through the rotation of the rotating bar (52) Second drive rod can also be driven to move, to drive turning for another rotating bar (52) being connected with second drive rod It is dynamic, and then drive another guide vane (51) coordinated with another rotating bar (52) to rotate.

8. gravitational dust collecting device according to claim 6, it is characterised in that the side of the rotating bar (52), which is provided with, to be had The fastener (55) of opening, the power transmission shaft (57) pass through the mounting hole being arranged in the rotating bar (52) and passed through described tight Firmware (55), bolt (56) so that the opening of the fastener (55) to be locked, realize the transmission through the fastener (55) Axle (57) is fixedly connected with the rotating bar (52).

9. gravitational dust collecting device according to claim 6, it is characterised in that the guide vane (51) is provided with mounting bracket (58) connecting rod being connected simultaneously with the mounting bracket (58) and the guide vane (51), is provided with the mounting bracket (58) (59), the connecting rod (59) is connected with the power transmission shaft (57) or the rotating bar (52).

10. gravitational dust collecting device according to claim 9, it is characterised in that the mounting bracket (58) and the water conservancy diversion leaf Piece (51) forms triangular support structure.

11. gravitational dust collecting device according to claim 5, it is characterised in that the rack and pinion drive mechanism includes tooth Take turns and be connected with the intermeshing rack of the gear, the guide vane (51) with the gear, to drive the gear Drive the guide vane (51) to rotate during rotation, while drive the rack to move, and nibbled by the rack drives with it Another pinion rotation closed, and then drive another guide vane (51) to rotate.

12. according to the gravitational dust collecting device described in any one of claim 1~11, it is characterised in that the guide vane (51) Surface be plane and/or curved surface.

13. gravitational dust collecting device according to claim 12, it is characterised in that the curved surface is arc surface, elliptical arc surface Or parabola cambered surface.

14. according to the gravitational dust collecting device described in any one of claim 1~11, it is characterised in that the guide vane (51) Water conservancy diversion angle be 30 °~65 °.

15. according to the gravitational dust collecting device described in any one of claim 1~11, it is characterised in that also including controller and set Put it is described go out gas storehouse (3) in detection means, the detection means be used to detecting it is described go out gas storehouse (3) in parameter preset Size, the controller are connected with the detection means signal, to receive the parameter signal that the detection means is detected, and root The water conservancy diversion angle of the guide vane (51) is adjusted according to the parameter signal.

16. gravitational dust collecting device according to claim 15, it is characterised in that the detection means is examined including granularity of dust Device is surveyed, the parameter preset includes granularity of dust.

17. gravitational dust collecting device according to claim 15, it is characterised in that the detection means includes air quantity or blast Detection means, the parameter preset include air quantity or blast.

18. gravitational dust collecting device according to claim 15, it is characterised in that the end of the gravitational dust collecting device is provided with Blower fan, the blower fan is used for the air-flow for being aspirated through gravitational dust collecting device and discharges the air after purification outside storehouse, described Detection means includes fan rotation speed detecting device or air door of fan Measuring opening device, the parameter preset include rotation speed of fan or Air door of fan aperture.

19. a kind of asphalt mixing plant, it is characterised in that including the gravitational dust collection dress as described in any one of claim 1~18 Put.