CN207654829U - A kind of dust-extraction unit and the entrance guiding board group part for dust-extraction unit - Google Patents

Abstract

Dust-extraction unit has mobile entrance deflector, and the entrance guiding plate is controlled by actuator in position, to change flow velocity of the granular materials on clamp down.Entrance guiding plate is formed with the fixing component extended between the antetheca and rear wall of the dust-extraction unit, and is extended downwardly from roof, is terminated with the relationship that the surface with clamp down separates.Movable link is operatively coupled to actuator, and the actuator position is movable to below the fixing component and passes through deflector close to the surface of clamp down with termination material flowing.Gasket maintains the minimum range between fixing component and movable link.

Description

A kind of dust-extraction unit and the entrance guiding board group part for dust-extraction unit

Technical field

In this application invention disclosed generally relate to clean and handle granular materials (such as plastic beads, grain, Glass etc.) device, and more particularly to dust-extraction unit controls entrance guiding plate to close granular materials anti-with actuator Flowing on clamp down.

Background technology

It is well known that especially in the field for transporting and using granular materials (being typically powder, particle, bead etc.), Product particle is kept to be important without pollutant as much as possible.Particle would generally transmit in a facility, in the facility Particle is mixed in the guard system that pressurizes, packs or uses, which, which actually produces, shows to be somewhat like fluid Material flow.Because these materials move through pipeline, not only between particle itself, but also between tube wall and particle stream Produce sizable friction.In turn, this friction results in particle dust, crushed particles, fluffing, ribbon (streamers) glass fibre in (strip element " can be grown " to considerably long and entanglement), glass-filled product, these energy Enough hinder the flowing of material.The characteristic of such Transmission system is well-known, as kept product particle to be free of as far as possible The importances and value of pollutant.

As used herein term " pollutant " includes extensive foreign matter, and includes foreign matter and breaking by conveying products Broken particle or ribbon.Pollutant, also referred to as dust, including micronic dust can be generated by a large amount of source, including, for example, in plastics Dust granule is generated in the processing procedure of bead, wherein larger particle is isolated to re-grind；Organic matter in grain, such as Shell and crust；Iron ore pellet forms the generation of middle dust；And as previously pointed out, it is conveyed in pipeline and other machinery With the simple transmission of bead in processing system.As an example using plastics, such foreign matter may adversely affect finished product.Tool It says to body, foreign matter is different from raw material in composition, such as the heterogeneous material (such as ribbon) of dust and original product is not necessarily With melting temperature identical with original product, and defect can be caused when plastic material melts and is molded.In addition, floaing at bagging station Band can influence platform scale and block metering screw.

In view of the quality of product, and it is conceived to mouldable plastics as main example, foreign matter is different in composition Melting temperature identical with original product is not necessarily had in raw material, such as the heterogeneous material of dust, original product, fluffing and ribbon Degree, and can cause defect when material melts and is molded.These defects lead to finished color disunity, may contain bubble, and And flaw or dyeing are often appeared to have, and therefore can not be sold.It is worth noting that, because these identical heterogeneous materials It tends not to melt at that same temperature with original product, unfused pollutant can cause the too early mill of friction and molding machine Damage, leads to downtime, production loss, the productivity of reduction, increased repair, to increase total production cost.

It is generated mostly by Transmission system due to dust and other pollutants, it is most important that device to be not only provided and is used for Thoroughly cleaning particle, and as close to particle application point pollutant is generated to avoid passing through additional transmission.Cause This, compact deduster is used for many years, to clean the material in the application, can handle the product of smaller size smaller, It also being capable of thorough cleaning products.Compact deduster allows to install the deduster using preceding in the final of product just, example Such as be directly installed on the top of molding machine or extruder, or before packaging and pack in the upper surface of feed bin and feed bin in the following, Rather than in earlier stage, recontamination may occur before product use after this.Certainly, the deduster also can be used as Freely erect unit installation.

Deduster for cleaning the pollutant from granular materials can find in U.S. Patent number 5,035,331, Jerome I.Paulson are awarded on July 30th, 1991, wherein air is blown through clamp down, the particle of pollution upwards Material flow is passed through on clamp down so that pollutant is removed from material flow upwardly through the air stream of clamp down.By removing Dirt device provides magnetic field so that granular materials stream by magnetic field to neutralize the electrostatic charge on particle, and convenient for removing decontamination from material Contaminate object.Pollutant loads air stream and is discharged from deduster, and clean granular materials is transmitted to manufacturing process.

Compact dust-extraction unit discloses in U.S. Patent number 6,595,369, is awarded on July 22nd, 2003 Jerome I.Paulson.Picture is in U.S. Patent number 5, the bigger dust-extraction unit described in 035,331, subsequent granular materials quilt Pollutant is washed, the pollutant, which has, attracts pollutant to the electrostatic charge for being neutralized particle.Cleaning process utilize by The air stream of grain material flow, the granular materials stream pass through clamp down.Pollutant loads air and is arranged by the top of dust-extraction unit Go out, and clean granular materials is discharged from the bottom of deduster.

The U.S. Patent number 7,380,670 of authorizing Jerome I.Paulson et al. on June 3rd, 2008 and In the U.S. Patent number 8,016,116 that September in 2011 authorizes Heinz Schneider on 13rd, dust-extraction unit includes a pair of of direction Opposite clamp down receives contaminated granular materials from common charging port.Feed mechanism opposite is rushed at two The material flow is separated between washing down deck, and the granular materials is guided to cross the air stream by the first clamp down, so It by the downstream from venturi region that is spaced laterally apart and reaches on inside two level clamp down afterwards, clean granular materials is guided to enter Center discharge port.It is guided to the air stream of main clamp down and two level clamp down by the manifold positioned backward, manifold tool There is center to be mainly open and the spaced under shed under two level clamp down.

These compact dedusters are provided with single, offset and bis- (back-to-back) clamp downs and the pipe by vertical orientation Road is utilized, and wherein granular materials is transported in the manufacturing device using granular materials.Therefore, on the dust-extraction unit top Product inlet opening and the cleaning products exit opening vertical alignment in portion.Granular materials is introduced in the entrance opening In, and be metered on diagonally oriented main clamp down, by it, air is blown into from air supply entrance, to remove in institute State the dust and clast of the granular materials flowed on clamp down.In these dust-extraction units, granular materials is in clamp down Lower end is discharged and is dropped through downstream from venturi region, and air moves up wherein, is made with providing strong cleaning to granular materials With.The material for being dropped through downstream from venturi region is received on two level clamp down, the orientation opposite with main clamp down, with Guiding material returns to the cleaning products exit opening of center alignment.

With the increased ability of dust-extraction unit, it is advantageous to for waiting for clearly on the opposite clamp down of dust-extraction unit The complete equipilibrium of the inflow of clean granular materials is distributed, or in deviating dust-extraction unit, provides the entire width of clamp down On stream.In conventional dust removal devices, flowing of the granular materials on clamp down is typically then to be passed through by rotary valve In round entrance opening to rectangle clamp down.Therefore, the stream on the entire width of clamp down generally can not be completed.

Advantageously, providing the configuration for dust-extraction unit so that the granular materials to be cleaned is in the whole of clamp down It is evenly distributed on a width.It is further advantageous that flowing of the granular materials on clamp down can be terminated selectively.In addition have The configuration of profit being to provide for dust-extraction unit so that rotary valve can be eliminated from the entire combination of component, while make granular material The charging of material is by round feed openings.

Invention content

The purpose of this utility model is by providing for existing to overcome except the device of dust and fragment from granular materials There is the shortcomings that technology, which has entrance structure, this will provide balanced flowing of the granular materials on opposite clamp down For cleaning granular materials.

Another purpose of the utility model is to provide a kind of dust-extraction unit, and completing material using round entrance port exists Evenly distributing on the entire width of clamp down.

The utility model is characterized in that the dust-extraction unit establishes fully loaded entrance structure to provide granular material opposite Equilibrium assignment on clamp down.

The further feature of the utility model is that the application of the entrance guiding plate of actuator control makes granular materials rinse It is distributed on the entire width on deck.

The further feature of the utility model is can to terminate granular materials using the entrance guiding plate of actuator control rinsing Flowing on deck, to allow material to be accumulated on entrance guiding plate and enter in rectangle entrance structure, this, which is provided, is rinsing Uniform Flow on deck.

The utility model has the advantages that entrance guiding plate can be positioned individually, to provide granular materials in opposite flushing first The flowing of pre-selection on single clamp down on plate or for deviating dust-extraction unit in a manner of balancing, evenly distribute.

The further feature of the utility model is that entrance guiding plate is controlled by actuator, which can be coupled to meter Calculation machine, for being automatically positioned the entrance guiding plate relative to the surface of the clamp down, to control material in clamp down Flowing on surface.

The another object of the utility model be to provide granular materials dust-extraction unit two opposite clamp downs each On flowing independent control, or control flowing on single clamp down.

In addition the utility model is further characterized in that entrance guiding plate can be adjusted individually to control granular materials each Flowing on the upper surface of corresponding clamp down.

The utility model is further advantage is that independently adjustable, actuator control entrance guiding plate is operable to close The operation of one or two clamp down.

The utility model is another further advantage is that the control provided by independently adjustable entrance guiding plate is without carrying It is supplied in dust-extraction unit for rotary valve and by granular materials.

Another of the utility model is characterized in that the entrance guiding plate is formed with fixing component, from the dust-extraction unit shell The upper surface of body extends downwardly, and is terminated with spaced relationship with corresponding clamp down.

Another of the utility model is characterized in that the entrance guiding plate is also formed with and shelves on the fixing element and can The movable link moved relative to the fixing component and corresponding clamp down surface.

Another advantage of the utility model is that the movable link of the entrance guiding plate is by the operation of actuator It is mobile.

The utility model another object is that the movable link of entrance guiding plate may be positioned to the neighbouring clamp down Surface is to terminate flowing of the granular materials on clamp down surface.

Another advantage of the utility model, which is cessation of flow of the granular materials on clamp down surface, allows granular material Material accumulation is on entrance guiding plate, to be filled in the shell of the dust-extraction unit between opposite entrance guiding plate on clamp down.

The utility model another will be further advantage is that the granular materials accumulated will completely be loaded for by entering On the entire width of clamp down, the entrance guiding plate can be positioned to be existed with providing granular materials for distribution after below mouth deflector Flow velocity needed on clamp down.

The another object of the utility model is to provide the entrance guiding plate of the actuator control for dust-extraction unit, structure It is durable, manufacture is cheap, safeguard easily, assembling is easy and using simple and effectively.

According to the utility model, these and other objects, feature and advantage are to be provided with moveable entrance by providing The dust-extraction unit of deflector is come what is realized, which controlled by actuator in position, to change granular materials Flow velocity on clamp down.Entrance guiding plate is formed with fixing component, between the antetheca and rear wall of the dust-extraction unit Extend, and extended downwardly from roof, is terminated with spaced relationship with the surface with clamp down.Movable link is operatively coupled To actuator, the actuator position is movable to close to the surface of clamp down below the fixing component to terminate Deflector is passed through in material flowing.Gasket maintains the minimum range between fixing component and movable link.

Description of the drawings

By considering the detailed disclosures of following the utility model especially in conjunction with attached drawing, the advantages of the utility model, will Become apparent, wherein：

Fig. 1 is combined with the front perspective view of the dust-extraction unit of the utility model principle；

Fig. 2 is the schematic elevational view of dust-extraction unit shown in Fig. 1, and entrance guiding plate is located in raised position, with Material is allowed to be flowed on clamp down；

Fig. 3 is the vertical view of dust-extraction unit shown in Fig. 1；

Fig. 4 is the perspective view of dust-extraction unit shown in Fig. 1；

Fig. 5 is the amplification front perspective view of dust-extraction unit shown in Fig. 1, and for the sake of clarity front door is detached from；

Fig. 6 is amplification vertical view, the front perspective view of the entrance guiding plate on the upper surface of clamp down；

Fig. 7 is analogous to the amplification front perspective view of the entrance guiding plate of Fig. 6；

Fig. 8 is the front view of an alternate embodiments of automatic entrance guiding plate；

Fig. 9 corresponds to the enlarged view of an entrance guiding plate part of Fig. 8 centre circles A；

Specific implementation mode

Dust-extraction unit is known in the art.Conventional dust removal devices and regular compact dust-extraction unit are structurally and operationally General description can find that this two patents are all in U.S. Patent number 5,035,331 and U.S. Patent number 6,595,369 Jerome I.Paulson are authorized, the content of each of these patents is incorporated herein by reference.By dedusting It is plastic beads that device 10, which carries out clean Typical particle material, is sent in injection molding machine to form plastic section Part.The example of plastic particle material of material of being cleared the pollution off by dust-extraction unit 10 is that polyester, acrylic resin, high density are gathered Ethylene, polypropylene, nylon, makrolon, styrene and low density polyethylene (LDPE).The dry scattered material of any kind of graininess, such as mine It production, food, drug and other can all be cleaned in dust-extraction unit 10.

Referring to Fig.1-4, it defines hub products ingress port 13 in conjunction with the dust-extraction unit of the utility model principle 10, leads to It is often connected to the vertical component of fluent material processing system (not shown) so that the granular materials is admitted to positioned at substantially airtight The top of main casing 11 transverse center product inlet port 13.Main casing 11 supports a pair of of back flush deck 20, from Ingress port 13 receive will clean granular materials, this will be described in greater detail below.Main casing, which also defines, to be had The air inlet passage 15 of air inlet port 16 in the rear wall 12 of shell 11.As will be described in more detail below, pass through Air inlet port 16 introduces air stream and will direct air through clamp down 20 to clean granular materials.

It is cleaned on 13 direct product particle to clamp down 20 of product inlet port.Magnetic coil 13a produces magnetic Logical field is simultaneously mounted on ingress port 13 so that will be flowed through into main casing 11 by flux field in by clean granular materials With the electrostatic charge on pellets, to which the separation of pollutant (especially micronic dust) and bead be more easily accomplished.Air is by wearing Later the clean air ingress port 16 of wall 12 is sent into shell 11, and to guide clean air stream to enter in shell 11, this will be It is described in more detail below.Clean air of the part Jing Guo entrance opening 16 is directed upwards by clamp down 20, simultaneously Clean air in the inflow shell 11 of remainder is assigned in downstream from venturi region 30, this will be retouched in further detail below It states.

Clamp down 20 is supported by the shell 11 between antetheca 17 and rear wall 12, to present from product inlet port 13 to punching Wash down deck 20 discharge end relative direction on downward inclined surface, on a surface will be by clean granule particles form Product moves under the effect of gravity.Granular materials is dropped through downstream from venturi region 30 and falls on two level clamp down 22, wherein Additional clean air stream meets the granular materials before being transmitted to products export port 14.

A pair of of entrance guiding plate 40 is installed in a manner of it will be described in further detail below in shell 11.The entrance guiding plate Flowing of the 40 control materials on the surface of upper clamp down 20.Gap between entrance guiding plate 40 and clamp down is bigger, Flow velocity will be higher.Entrance guiding plate 40 includes towing leg 46, the gradient orientation of the clamp down 20 is roughly parallel to, to compel Product particle is set to enter on the surface of clamp down 20 downwardly downstream from venturi region 30 after entrance guiding plate 40 Laminar flow.

The clamp down 20 is formed to have the pitch of top surface 24, wherein forming approximate horizontal slot 25 and circle is opened Mouthful.Level trough 25 is formed as and the deflector that upwardly extends coordinates, the deflector on the top surface 24 of clamp down 20 to Slope is presented in the product particle of lower movement.Slot 25 is formed across top surface 24 and the level between deflector and top surface 24 Opening so that the air for flowing through slot 25 is led into product in generally horizontal directions by deflector, and the direction is relative to institute The gradient for stating the top surface 24 of clamp down 20 is slightly upward.The mobile air by the circular open is approximately perpendicular to described The angled top surface 24 of clamp down 20 is guided.

Final operating result is that product particle is subjected to downward acceleration along the surface of clamp down, and is subjected to by described It is rapid caused by movement of the particle on deflector and the substantially vertical air stream by being flowed out from circular open and level trough 25 Stream.Therefore, dust and clast pollutant are discharged from product particle and are vented by the dirty air at air flow delivery to 11 top of shell Port 19.

The product particle to fall off from the lower outlet side 21 of corresponding clamp down 20 is generally perpendicularly by downstream from venturi region 30 It is fallen towards corresponding two level clamp down 22, air is by the way that downstream from venturi region 30 is blown upwards is micro- by the product of whereabouts Grain, to provide strong final cleaning.Air is from the lower section of clamp down 20 by blinds baffle plate 29 and by being rushed by two level 22 air of washing down deck is introduced into downstream from venturi region 30.Clean air also can be introduced into downstream from venturi region by by-pass line 35 In 30.Main casing 11, which is provided with, to be entered in 12 subsequent clean air room of rear wall or manifold 18, main casing 11 with the clean air Mouth opening 16 is in fluid communication to direct airflow into clamp down 20,22, and is introduced into by-pass line 35.

The by-pass line 35 guides forward air stream around main casing 11, and main casing 11 is returned to before rear wall 12 In, to be directed into downstream from venturi region 30 behind and below pivot member 36.The mobile sky by by-pass line 35 Tolerance is controlled by the pivot damper 36 being pivotally mounted in by-pass line 35.It the size of downstream from venturi region 30 and leads into The pivot member 36 that the throughput of downstream from venturi region 30 adjusts lever 37 by being operably connected to position controls, position adjusting rod 37 are projected into the outside of main casing 11.

Enter downstream from venturi region 30 from the lower section of pivot member 36 and is showed by the air stream of blinds baffle plate 29 to falling Under across downstream from venturi region 30 product particle substantive cleaning action, but less acutely, to will not be by product particle It is promoted to dirty air exhaust port 19.If too many air movement is by downstream from venturi region 30, pivoting damper 36 should retract Not only to increase the effective dimensions of downstream from venturi region 30, but also reduce the air capacity for moving into downstream from venturi region 30.When shell 11 (reflected as schemed) when antetheca 17 is constructed by transparent or semitransparent makrolon, the operation of the clamp down component 20 can be by By physically being observed by checking for antetheca 17, to watch whether product particle is transported to dirty air exhaust port 19.

Entrained dirt and the air stream of clast pollutant are discharged from shell 11 by dirty air exhaust port 19 wherein, The dirty air exhaust port 19 is located at the top of shell 11 and in the top of downstream from venturi region 30, and in product inlet port 13 On opposite side.The transparent front wall 17 of shell 11 is formed as the hinged door of 17a with handles, and the handle 17a is at front door 17 from frame Convenient for the movement at front door 17 when 11a discharges.Selectively, antetheca 17 be not it is hinged and can by release connect antetheca 17 to The appropriate fastener of case frame 11a and remove.Antetheca 17 can pass through the frame of the frame 42 from connection antetheca 17 to shell 11 It supports 43 release fasteners 17b and is removed from shell 11.With the movement of antetheca 17, including clamp down 20, entrance guiding plate 40 and the internal element of pivot member 36 can be removed from shell 11, with the inside of shell 11 convenient for cleaning and removed member Part.

Preferably referring to Fig. 5-7, entrance guiding plate 40 is formed with fixing component 42, be fixed to shell 11 top and Extend between antetheca 17 and median wall 17, to prevent granular materials from passing through between fixing component 42 and the wall of shell 11.Installation In fixing component 42 is movable link 45, extension is also flushed between antetheca 17 and median wall 17, but be attached to cause Dynamic device 50 is to influence the movement on the surface of fixing component 42.Movable link 45 can be positioned on maximum as depicted in the figures Between raised position and lower position, which is positioned to the upper surface so close to clamp down 20 so that granular material Material can not pass through entrance guiding plate 40.In the lower position, entrance guiding plate 40 effectively seals against clamp down 20 so that particle Material will be accumulated and be filled to be limited by the top of clamp down 20, of laterally opposite entrance guiding plate and product inlet port 13 Shell 11 volume.

In this accumulation structure, granular materials loads the clamp down between antetheca 17 and rear wall 12 completely so that when Entrance guiding plate 40 increase with allow granular materials by when, the flowing is equably enterprising in the entire width of clamp down 20 Row.With granular materials continuing to flow by product inlet port 13, the clamp down 20 will keep fully loaded, improves and removes The effect of dirt device 10.Each entrance guiding plate 40 includes the towing leg 46 for the part for being formed as movable link 45, and puts down Row is oriented in the upper surface of the clamp down 20, to force product material to become laminar flow along clamp down 20.Linear auricle (tab) 48 be fixed on movable link 45 using from towing leg 46 be downwardly projected and as flowing limiting member.Work as entrance guiding When plate 40 is in lower position, linear auricle 48 is positioned to the surface of closely adjacent clamp down 20, and pulls leg 46 and rinsing The top on deck 20 is spaced apart.

Actuator 50 can be by hydraulic pressure, pneumatic or provide power by electric power, so as to extend from it and be connected to movable link 45 bar 51 extends.Actuator rod 51 and movable link 45 are arranged to along fixing component 42 toward and away from the clamp down 20 linear movements.Actuator rod 51 can be dismantled from movable link 45, and actuator 50 can be disassembled from shell 11 and from except Dirt device 10 removes, in order to safeguard or repair.

In operation, the utilization in conjunction with needed for the products export port 14, dust-extraction unit 10 are installed in place, and It is connected to the supply of the granular materials of product inlet port 13.Product particle by the product inlet port 13 and due to Linear auricle 48 passes through entrance guiding plate 40 positioned at lower position and by limitation so that granular materials can be accumulated and be filled in punching Wash down deck 20 tops and the vome of shell between entrance guiding plate 40.Once filling up, entrance guiding plate 40 can be promoted required Height, generate move through the entrance guiding plate 40 and under fall on clamp down 20 material desired flow rate.Once through Linear auricle 48 is crossed, the back leg 46 is so that material stratified flow on reversed dip clamp down 20.

Clean air is received by clean air entrance opening 16 and is directed in the shell 11 of lower section of clamp down 20, Enter in downstream from venturi region 30 by blinds baffle plate 29 and by the air-flow of two level clamp down 22.Flow into 20 lower section of clamp down Shell 11 in air be passed through slot 25 on clamp down 20 and opening.25 He of slot in clamp down 20 The air of opening is generating turbulent flow along the product particle that the top surface 24 of each clamp down 20 moves.Turbulent flow is by from top surface 24 What is projected upwards projects upwards the orientation reinforcement of deflector and level trough 25, and the orientation of level trough 25 accelerates product particle and rushing Wash down deck and the flowing on 20 and further generates turbulent flow.It is transported by the clamp down 20 and by the air of the product particle of flowing Dynamic that dust and fragment pollutant are eliminated from product particle, static attraction is neutralized by flux field, and the flux field is by magnetic flux Amount generator 13a causes at product inlet port 13.

Although preferred embodiment shown in attached drawing utilizes a pair of of the actuator to cooperate with corresponding opposite clamp down 20 Control entrance guiding plate 40, but the single entrance guiding plate associated with single clamp down 20 40 formed as described above Construction can control flowing of the granular materials in the upper surface of single clamp down 20.The single clamp down 20 can be discharged into Single secondary clamp down 22, then its clean granular material stream is directed to and 13 vertically aligned outlet end of ingress port Mouth 14.And individually the granular materials of purification can be discharged to by downstream from venturi region 30 relative to arrival end by clamp down 20 The outlet port of 13 horizontal and vertical offsets of mouth.The United States Patent (USP) 8 that this offset dust-extraction unit was authorized on January 13rd, 2015, Described in 931,641, content is incorporated herein by reference.

The entrance guiding plate structure 60 of replacement is best illustrated in figs. 8 and 9.In order to eliminate above-mentioned entrance guiding plate In 40 embodiment the problem of particle residence between fixing component 42 and movable link 45, the portion of the entrance guiding plate 60 of replacement Part is orientated different.Fixed water conservancy diversion board member 62 is fixed to shell 11 at bending part 63, and bending part 63 makes plane institution movement 64 With the angular orientation that stops of the Motion Parallel with the movable link 65 for being connected to actuator 50.As described above, movable link 65 is fixed It can move to linear actuators 50 and in the path for being parallel to the lower section of plane institution movement 64.The position of movable link 65 can To be controlled by microprocessor, which cleans the flow velocity of the granular materials on deck 20.Movable link 65 terminates It in top 66, can be positioned against cleaning deck 20 by actuator 50, to prevent granular materials any on cleaning deck 20 Flowing.Actuator 50 can pull out movable link 65 from cleaning deck 20, to provide the flow velocity of required granular materials.

The plane institution movement 64 of fixing component 62 separates scheduled distance with movable link 65, which is enough to prevent fine Grain rests between fixing component 62 and movable link 65.Preferably, fixing component 62 and movable link 65 are spaced apart about six Millimeter, this provide enough distances so that subparticle and the other dusts that may be gathered and clast by gravity from It is fallen between fixing component 62 and movable link 65.For the appropriate intervals being kept fixed between component 62 and movable link 65, One in fixing component 62 or movable link 65 should have the gasket 67 being fixed to the upper.As shown in figure 9, movable link 65 is with the gaskets 67 being fixed to the upper.

It is understood that those skilled in the art can be in the original of the scope of the utility model according to the reading of present disclosure Expect in then and details, material, step and the component for explaining the utility model property for having been described and showing can be made The change of arrangement.The description of front illustrates preferred embodiments of the present invention；However, the concept based on the description can be It is used in other embodiment, without departing from the scope of the utility model.Therefore, the claim of the utility model is intended to extensively The concrete form that ground is protected the utility model and shown.

Claims (16)

1. a kind of granular materials dust-extraction unit for cleaning unwanted clast from granular materials, including：

Shell；

Central feeding is open, and direct contaminated granular materials stream enters in shell；

The main clamp down that a pair connects on top is extended downwardly and outwardly to opposite discharge edge；

Corresponding to the entrance guiding plate of each clamp down, each entrance guiding plate can be toward and away from corresponding institute Clamp down movement is stated, with entrance guiding plate described in from maximum spaced position to minimum spacing position change and the corresponding punching Spacing between washing down deck, the minimum spacing position are that the entrance guiding plate is placed as neighbouring corresponding clamp down, To prevent contaminated granular materials by the entrance guiding plate, the entrance guiding plate is terminated with angled top, Granular materials will not be detained between entrance guiding plate and clamp down；

Actuator is connected to each entrance guiding plate, is it in the maximum spaced position and the minimum spacing position Between mobile offer power.

2. the apparatus according to claim 1, wherein each entrance guiding plate extends between the front and rear walls, in institute It states and is extended with the main clamp down between antetheca and the rear wall, the deflector is moved to described in the minimum spacing permission Pollution granular materials accumulates between the entrance guiding plate and the clamp down.

3. the apparatus of claim 2, wherein each entrance guiding plate includes：

The fixing component for extending between the antetheca and the rear wall and being mounted on the overhead of the shell, it is described solid The relationship for determining component to be separated with the corresponding main clamp down terminates；And

The movable link that can be slided along the fixing component, be connected to the corresponding actuator with for movable link it is opposite In the mobile offer power of the fixing component, the movable link can be positioned between the maximum spaced position and the minimum Away between position, at the minimum spacing position, the granular materials of pollution cannot pass through the movable link, the movable structure Part is located at the lower section of the fixing component.

4. device according to claim 3, wherein each described movable link include：

Support is on the fixing member and the planar section of orientation in parallel；

The towing leg of the clamp down orientation is extended downwardly and is roughly parallel to from the planar section, and the towing leg can be grasped Guide particulate material stratified flow if as the planar section is moved past once the granular materials；And

It is roughly parallel to the linear auricle that the planar section extends from the towing leg, can be positioned adjacent to the clamp down, To limit gap relative to the clamp down when the movable link is moved relative to the fixing component.

5. device according to claim 4 makes wherein each fixing component is oriented relative to the shell diagonally opposing corner The linear auricle to be substantially that right angle is moved towards and far from the corresponding clamp down.

6. device according to claim 5, wherein each actuator is typically parallel to the corresponding entrance guiding Plate orients, and by hydraulic pressure, power one of is pneumatically or electrically provided.

7. device according to claim 6, wherein each actuator can be dismantled from the corresponding movable link.

8. device according to claim 7, further comprises：

Clean air ingress port bypasses air through the flushing first to guide clean air stream below the clamp down Plate come formed from discharge edge be discharged cleaning granular materials, the clean air ingress port be located at the clamp down lower section The rear wall in；

Downstream from venturi region on the outside of each corresponding discharge edge；

The cleaning products discharge port supported by the shell, for cleaning granular materials to be discharged from shell.

9. device according to claim 8 further comprises being respectively supported at the main flushing first in the shell A pair of of two level clamp down of the lower section of the outlet side of plate, with receive after the corresponding downstream from venturi region from the row The granular materials of outlet discharge.

10. a kind of entrance guiding board group part for dust-extraction unit is directed to shell with shell, by the granular material stream of pollution Feed openings in body and extend downwardly and outwardly the clamp down to discharge edge, the entrance guiding board group part packet from it It includes：

Extend between the antetheca and the rear wall of the shell of the shell and is mounted on consolidating on the overhead of the shell Determine component, the fixing component is terminated with the relationship separated with the corresponding clamp down；

The movable link that can be slided along the fixing component, is located between maximum spaced position and minimum spacing position, At the minimum spacing position, the granular materials of pollution cannot pass through the movable link；The movable link is located at described solid Determine the lower section of component, and at predetermined distance intervals；

Actuator is connected to the movable link, and power is provided relative to fixing component movement for the movable link.

11. entrance guiding board group part according to claim 10, wherein the fixing component includes

The shell is fixed on from the bending part that the dust-extraction unit is detached from；And

The planar section of the clamp down is extended downwardly and is approximately perpendicular to from the bending part.

12. entrance guiding board group part according to claim 11, wherein in the fixing component and the movable link One include it is at least one being located between the fixing component and the movable link and keep the fixing component and The gasket of minimum separation distances between the movable link.

13. entrance guiding board group part according to claim 12, wherein the actuator is roughly parallel to the entrance and leads Flowing plate orients and by hydraulic pressure, and pneumatically or electrically one of power provides power.

14. entrance guiding board group part according to claim 13, wherein the actuator can be from the corresponding movable structure Part is dismantled.

15. entrance guiding board group part according to claim 14, wherein the dust-extraction unit includes a pair of of clamp down, Top below the feed openings is converged, and the clamp down is downward and extends out to the opposite side on the top Face, the entrance guiding board group part include that fixing component described in one, a movable link and one are used for each institute State the actuator of clamp down.

16. entrance guiding board group part according to claim 15, movable link described in two of which enter it is described it is minimum between Positioning away from position allows the pollution granular materials to be accumulated between two movable links and on the clamp down, To be fully loaded with the flushing first along the width dimensions of clamp down when being moved on the minimum spacing position in the movable link Plate.