CN110280183A - Granulator and method of granulating - Google Patents
Granulator and method of granulating Download PDFInfo
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- CN110280183A CN110280183A CN201910608363.6A CN201910608363A CN110280183A CN 110280183 A CN110280183 A CN 110280183A CN 201910608363 A CN201910608363 A CN 201910608363A CN 110280183 A CN110280183 A CN 110280183A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
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Abstract
The present invention proposes a kind of granulator, for manufacturing and collecting particle, it includes several feeding machanisms, several droppers for corresponding and being vertically connected with feeding machanism, receiving mechanism below dropper and dropper and receiving mechanism are covered to interior glove box, dropper includes quartz funnel, heating mantle, funnel upper cover, funnel protective shell, quartz funnel is placed in heating mantle, funnel protective shell is coated on outside heating mantle, funnel upper cover is covered in heating mantle, quartz funnel includes hopper walls and encloses the funnel chamber for setting and being formed by hopper walls, hopper walls bottom end protrudes out several fistulaes, fistulae is connected to funnel chamber, heating mantle and funnel protective shell are provided with corresponding aperture corresponding with fistulae, after mounting, fistulae stretches out heating mantle and funnel protective shell through corresponding aperture convex.The present invention proposes a kind of corresponding method of granulating simultaneously.
Description
Technical field
The present invention relates to high-purity dissipated metal preparation field more particularly to a kind of granulators and method of granulating.
Background technique
Selenium is a kind of common high pure metal, and selenium can be applied to the crowds such as metallurgy, glass, ceramics, electronics, solar energy, feed
It is multi-field, and with the appearance of the development of world economy and new application field, the downstream demand of selenium constantly increases.With selenium
Using more and more extensive, industry proposes increasingly higher demands to the granules of selenium uniformity, stability and oxygen content.
A kind of method for preparing high-purity anaerobic granules of selenium of CN105967152B- proposed by rare metal research institute, Guangdong Province
The continuous production of high-purity semicircle spherical shape selenium grain is realized with device, however its production efficiency is still unable to meet demand, exists
Selenium abscission difficulty in turn results in the defects of collection is difficult, manual operation is difficult, and it is empty that granulation device still has very big improvement
Between.
Summary of the invention
It is an object of the invention to overcome above-mentioned technical problem, a kind of high production efficiency, automatically collection particle, particle are proposed
Uniformly and a kind of high granulator and method of granulating of stability.
To realize foregoing purpose, the present invention adopts the following technical scheme: a kind of granulator, for manufacturing and collecting particle,
It includes several feeding machanisms, several droppers for corresponding and being vertically connected with feeding machanism, is located under dropper
The receiving mechanism of side and dropper and receiving mechanism are covered to interior glove box, dropper include quartz funnel plus
Hot jacket, funnel upper cover, funnel protective shell, quartz funnel are placed in heating mantle, and funnel protective shell is coated on outside heating mantle, on funnel
It is covered in heating mantle, quartz funnel includes hopper walls and encloses the funnel chamber for setting and being formed by hopper walls, and hopper walls bottom end is convex
Several fistulaes are stretched out, fistulae is connected to funnel chamber, and heating mantle and funnel protective shell are provided with corresponding aperture corresponding with fistulae,
After assembly, fistulae stretches out heating mantle and funnel protective shell through corresponding aperture convex.
As a further improvement of the present invention, the hopper walls include half cylinder end walls, and several fistulaes are formed symmetrically
Two column occupy semicolumn bottom wall two sides.
As a further improvement of the present invention, spaced set between the adjacent fistulae of each column.
As a further improvement of the present invention, receiving mechanism includes idler wheel, scraper part, driving wheel, driven wheel, fixed support
The stereoscopic frame and splicing dustpan of idler wheel, driven wheel and idler wheel one end are coaxially connected, pass through belt between driving wheel and driven wheel
Or chain connection.
As a further improvement of the present invention, idler wheel includes a main shaft and the mirror surface wheel rotated coaxially with main shaft, driven
It takes turns and main shaft coaxially connected with main shaft one end to be driven by driven wheel, dropper is always positioned at the surface of mirror surface wheel, and splicing is winnowed with a dustpan
Dustpan is always positioned at the underface of mirror surface wheel.
As a further improvement of the present invention, scraper part includes a fixed link, several doctor blade holders and several scrapers, is fixed
Bar is arranged in parallel with main shaft, and the both ends of fixed link are individually fixed on the opposite turning rolls of stereoscopic frame, and each doctor blade holder can
It is slided along fixed link.
As a further improvement of the present invention, each scraper includes scraper fixed part and blade, and scraper fixed part one is a pair of
That answers is fixed on doctor blade holder lower end, and blade is directed toward the mirror surface wheel of idler wheel.
As a further improvement of the present invention, the most short spacing between blade and mirror surface wheel is no more than drippage on mirror surface wheel
The particle being cooled into along mirror surface wheel radial size.
As a further improvement of the present invention, stereoscopic frame include pedestal from bottom to top, it is opposite a pair of of turning rolls, opposite
A pair of of dropping section, each turning rolls be a hollow square box, each dropping section include the first dropping section and the second dropping section,
Pedestal includes bottom plate and four support columns upwardly extending from bottom plate, and four support columns are individually fixed on the quadrangle of bottom plate, often
One turning rolls is fixed on vertically above two support columns, and the first dropping section and the second dropping section can be risen above turning rolls
Drop.
As a further improvement of the present invention, main shaft both ends extend through a turning rolls main shaft are made to be set up in this to rolling
On wheel carrier.
As a further improvement of the present invention, the both ends of splicing dustpan are individually fixed on the diagonal strut column of pedestal.
As a further improvement of the present invention, feeding machanism include barrel, discharger and up and down be separately connected barrel and
The star-shaped discharge valve of discharger, discharger are provided with the switch of control discharge velocity.
As a further improvement of the present invention, a weighing sensor built in quartz funnel, and weighing sensor and discharger
Switch be electrically connected.
As a further improvement of the present invention, barrel includes that the main body cylinder of hollow cylinder, autonomous agent cylinder extend downwardly
Aggregate tube and one it is covered on barrel lid above main body cylinder.
The present invention proposes that a kind of method of granulating, above-mentioned granulator, the method for granulating include the following steps: simultaneously
S1, solid material is packed into the barrel of feeding machanism；Solid material passes sequentially through star-shaped discharge valve and discharger；
S2, discharger switch control solid material enter the rate of dropper from discharger；
S3, solid material enter quartz funnel from discharger, start the heating of heating mantle, and heating mantle provides for melting solid material
Heat source, solid material are melt into as liquid material in quartz funnel；
S4, liquid material are dripped by fistulae on mirror surface wheel, and liquid material is cooled into particle；
S5, as mirror surface wheel rotates, partial particulate drops in splicing dustpan naturally under the effect of gravity, the portion not fallen off naturally
Particle is divided to be scraped after touching blade to splicing dustpan.
This granulator and method of granulating can be realized automated production, after the completion of feeding intake, be not required to very important person in process of production
Work operation, it is only necessary to which splicing is packaged, and is significantly reduced artificial investment, is met very much in shop floor production management and mentioned
The energy-saving management mode advocated, and high production efficiency, preparation-obtained grain products are high-quality, homogeneity is high.
Detailed description of the invention
Fig. 1 is the overall structure diagram of granulator of the present invention.
Fig. 2 is the partial structure diagram one of granulator of the present invention.
Fig. 3 is the partial structure diagram two of granulator of the present invention.
Fig. 4 is the configuration schematic diagram of the dropper of granulator of the present invention.
Fig. 5 is the assembling structure schematic diagram of the dropper of granulator of the present invention.
Fig. 6 is the assembling structure schematic diagram of the idler wheel of granulator of the present invention.
Fig. 7 is the structural schematic diagram of the scraper part of granulator of the present invention.
Fig. 8 is the structural schematic diagram of the feeding machanism of granulator of the present invention.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
In the description of the present application unless specifically defined or limited otherwise, term " first ", " second " are only used for describing
Purpose, be not understood to indicate or imply relative importance；Term " multiple " refers to more than two (including two)；Unless
State otherwise or illustrate, term " connection " " connection ", etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, can
Dismantling connection is integrally connected；" connection " can be directly connected, can also be indirectly connected through an intermediary；" connection "
It can be direct connection, intermediary indirect communication can also be passed through.For the ordinary skill in the art, Ke Yigen
The concrete meaning of above-mentioned term in this application is understood according to concrete condition.
In the description of this specification, it is to be understood that the nouns of locality such as "upper", "lower" described in the embodiment of the present application are
With angle shown in the drawings come what is be described, the restriction to the embodiment of the present application should not be construed as.Below by specific reality
It applies example and the application is described in further detail in conjunction with attached drawing.
Please refer to Fig. 1,2, a kind of granulator 1 comprising several feeding machanisms 11 correspond simultaneously up and down with feeding machanism
Several droppers 12 of connection, positioned at the receiving mechanism 13 of the lower section of dropper 12 and by dropper 12 and receiving mechanism
13 cover at interior glove box 14.
Referring to Fig. 3, feeding machanism 11 includes barrel 111, discharger 112 and is separately connected barrel 111 up and down and puts
The star-shaped discharge valve 113 of glassware 112.
In certain embodiments, it is connected between discharger 112 and star-shaped discharge valve 113 by flange 114.
The aggregate tube 111b that main body cylinder 111a, the autonomous agent cylinder 111a of barrel 111 including hollow cylinder are extended downwardly with
And one the top-down cross-sectional area of barrel lid 111c, aggregate tube 111b that is covered on above main body cylinder 111a gradually reduce.
Discharger 112 is provided with the switch (being not shown on figure) of control discharge velocity.
The effect of star-shaped discharge valve 113 is: uniformly accurate feed, while also completely cutting off inside glove box 14 to greatest extent
With external air communication, while normal feed, the oxygen-free environment in glove box 14 is effectively kept.
Fig. 4, Fig. 5 are please referred to, dropper 12 includes quartz funnel 121, heating mantle 122, funnel upper cover 123, funnel guarantor
Protective case 124, quartz funnel 121 are placed in heating mantle 122, and funnel protective shell 124 is coated on outside heating mantle 122, funnel upper cover 123
It is covered in heating mantle 122, quartz funnel 121 includes hopper walls 121a and encloses the funnel chamber for setting and being formed by hopper walls 121a
The bottom end 121b, hopper walls 121a protrudes out several fistulae 121c, and fistulae 121c is connected to funnel chamber 121b, heating mantle 122 and leakage
Bucket protective shell 124 be provided with corresponding aperture (being not shown on figure) corresponding with fistulae 121c, after mounting, fistulae 121c through pair
Hole convex is answered to stretch out heating mantle 122 and funnel protective shell 124.
Hopper walls 121a includes half cylinder end walls 121a1, and several fistulae 121c form symmetrical two column and occupy semicolumn
The two sides bottom wall 121a1.
In some embodiments, a weighing sensor (being not shown on figure) built in quartz funnel 121, and weighing sensor with
The switch of discharger 112 is electrically connected, and weighing sensor controls the weight of liquid material in quartz funnel 121 always, and according to
The rate of dropping liquid controls feed rate of the discharger 112 to quartz funnel 121, and the material liquid surface of 121 the inside of quartz funnel is made to begin
It is maintained at the height of the optimal granular state of drop eventually, to guarantee the stability of material particles quality.
Spaced set between the adjacent fistulae 121c of each column.Spaced set may insure suffered by each fistulae 121c
Pressure it is consistent so that the size of the drop dripped is consistent, and then the partial size of preparation-obtained particle is consistent
Property is good.
Heating mantle 122 includes several external connection 122a, and external connection 122a and external power supply are electrically connected.Heating mantle 122 is
Fused materials provide heat source.In the present embodiment, heating mantle 122 includes two external connection 122a.
Dropper 12 further includes a quartzy backing plate 125, and the quartzy pad of backing plate 125 is set to funnel upper cover 123 and heating mantle 122
Between.Quartzy backing plate 125 plays heat-insulated effect, avoids heating mantle 122 and funnel upper cover 123 from directly contacting, extends on funnel
The service life of lid 123.
At least one feed opening 123a is opened up in funnel upper cover 123.Specifically, feed opening 123a is in a rectangle or pros
A pair of of interface 123b is arranged above the feed opening 123a in shape, to interface 123b by four flanging 123b1 shapes being folded upward at
At the height of four flanging 123b1 is concordant.112 lower end of discharger is connected with to interface 123b.
Funnel protective shell 124 includes the body part 124a and side portion 124b protruded from body part 124a to side,
Body part 124a and the junction side portion 124b are opened up there are two pilot hole 124c, are filled in heating mantle 122 and funnel protective shell 124
Timing, pilot hole 124c are convenient for the heating mantle 122 including external connection 122a to assemble downwards, external connection 122a are avoided to be pressed from both sides.
Side portion 124b includes connector cover 124b1, after external connection 122a and external power supply are electrically connected, connector cover
124b1 is fixed on side portion 124b by screw and side portion 124b is closed.
Receiving mechanism 13 includes idler wheel 131, scraper part 132, driving wheel 133, driven wheel 134, fixed back-up roller wheel 131
Stereoscopic frame 135 and splicing dustpan 136, driven wheel 134 and 131 one end of idler wheel are coaxially connected, driving wheel 133 and driven wheel 134
Between connected by belt or chain.Driving wheel 133 and driven wheel 134 are fixed on the same side of stereoscopic frame 135.
Stereoscopic frame 135 includes pedestal 135a, opposite a pair of of turning rolls 135b, opposite a pair of of dropping section from bottom to top
135c, each turning rolls 135b are a hollow square box, and each dropping section 135c includes the first dropping section 135c1 and second liter
Section 135c2 drops, and pedestal 135a includes bottom plate 135a1 and four support column 135a2 upwardly extending from bottom plate 135a1, four branch
Dagger 135a2 is individually fixed on the quadrangle of bottom plate 135a1, and each turning rolls 135b is fixed on two support column 135a2 vertically
Top, the first dropping section 135c1 and the second dropping section 135c2 can be gone up and down above turning rolls 135b.Dropper 12
Upper and lower side is individually fixed in the first dropping section 135c1 and the second dropping section 135c2, and therefore, dropper 12 can be as needed
As the first dropping section 135c1 and the second dropping section 135c2 are gone up and down.
Idler wheel 131 includes a main shaft 131a and the mirror surface wheel 131b rotated coaxially with main shaft 131a, the edge mirror surface wheel 131b
The direction G section radius be greater than main shaft 131a along the direction G section radius.Driven wheel 134 and the one end main shaft 131a are coaxial
It connects and main shaft 131a is driven by driven wheel 134.Dropper 12 is always positioned at the surface of mirror surface wheel 131b, splicing dustpan
136 are always positioned at the underface of mirror surface wheel 131b.In some embodiments, recirculated cooling water, recirculated cooling water built in idler wheel 131
Cooling mirror surface wheel 131b.The both ends main shaft 131a extend through a turning rolls 135b and main shaft 131a are made to be set up in this to turning rolls
On 135b.
Scraper part 132 include a fixed link 132a, several doctor blade holder 132b and several scraper 132c, fixed link 132a with
Main shaft 131a is arranged in parallel, and the both ends of fixed link 132a are individually fixed on the opposite turning rolls 135b of stereoscopic frame 135, each
Doctor blade holder 132b can slide 132a along fixed link.Each scraper 132c includes scraper fixed part 132c1 and blade 132c2,
Scraper fixed part 132c1 is fixed on the lower end doctor blade holder 132b correspondingly, and blade 132c2 is directed toward the mirror surface wheel of idler wheel 131
131b。
Most short spacing between blade 132c2 and mirror surface wheel 131b is no more than drippage in being cooled on mirror surface wheel 131b
Particle along mirror surface wheel 131b radial direction size.In some embodiments, particle is along the size of mirror surface wheel 131b radial direction
1mm, then can to ensure that blade 132c2 can be scraped viscous no more than 1mm for the most short spacing between blade 132c2 and mirror surface wheel 131b
Invest the particle not fallen off naturally on mirror surface wheel 131b.
The both ends of splicing dustpan 136 are individually fixed on the diagonal strut column 135a2 of pedestal 135a.Naturally it falls off and is scraped
Under particle fall in splicing dustpan 136 and be collected.One vibration motor 136a is installed on splicing dustpan 136, shakes motor
136a provides power and promotes the further mobile of particle and be collected, and is not stranded in splicing dustpan 136.
Dropper 12 and receiving mechanism 13 cover in glove box 14, and glove box 14 is anaerobic glove box, glove box
14 provide the environment of anaerobic to dropper 12, receiving mechanism 13.Glove box 14 includes several transparency windows 141, and transparency window 141 is used
In the operating status of observation dropper 12 and receiving mechanism 13.
The present invention proposes a kind of method of granulating simultaneously, uses above-mentioned granulator 100, which includes following step
It is rapid:
S1, solid material is packed into the barrel 111 of feeding machanism 11；Solid material passes sequentially through star-shaped discharge valve 113 and puts
Glassware 112；
S2, discharger 112 switch control solid material from discharger 112 enter dropper 12 rate；
S3, solid material enter quartz funnel 121 from discharger 112, start the heating of heating mantle 122, and heating mantle 122 is melting
Solid material provides heat source, and solid material is melt into as liquid material in quartz funnel 121；
S4, liquid material are dripped by fistulae 121c on mirror surface wheel 131b, and liquid material is cooled into particle；
S5, as mirror surface wheel 131b rotates, partial particulate drops in splicing dustpan 136 naturally under the effect of gravity, unnatural
The partial particulate to fall off is scraped after touching blade 132c2 to splicing dustpan 136.
The granulator and method of granulating are highly suitable for producing anaerobic high-purity selenium grain under anaerobic slight positive pressure state environment.
The reason of partial particulate falls off naturally under the effect of gravity in S5 is: passing through fistulae by the liquid material melted
It drips on the mirror surface wheel of constant speed operating, the recirculated cooling water of internal flow keeps the temperature of mirror surface wheel constant in best effort shape
State, so that liquid material is enable to be quickly cooled down solidification, since liquid material is prepared with mirror surface wheel by the metal of unlike material,
The rate of expanding with heat and contract with cold of the metal of unlike material is not identical, therefore, the particle being cooled by liquid material can naturally with
The separation of mirror surface wheel, particle can be fallen in the splicing dustpan below mirror surface wheel automatically due to self weight.
The granulator and method of granulating cleverly use the circumferential surface of mirror surface wheel, and being utilized for most maximum efficiency is limited
The space of glove box prepares the production efficiency of anaerobic selenium grain than mentioning in background technique in the space of same glove box
" method and apparatus for preparing high-purity anaerobic granules of selenium " of rare metal research institute, Guangdong Province exploitation improve nearly 20 times.
Make to drip the high-purity selenium liquid level of solution inside grain funnel by weighing sensor and remains at the optimal granular state of drop
Height, to ensure that the stability of grain products quality.
This granulator and method of granulating can be realized automated production, after the completion of feeding intake, be not required to very important person in process of production
Work operation, it is only necessary to which splicing is packaged, and is significantly reduced artificial investment, is met very much in shop floor production management and mentioned
The energy-saving management mode advocated, and high production efficiency, preparation-obtained grain products are high-quality, homogeneity is high.
Although for illustrative purposes, the preferred embodiment of the present invention is had been disclosed, but the ordinary skill people of this field
Member will realize without departing from the scope and spirit of the invention as disclosed by the appended claims, various to change
Into, increase and replace be possible.
Claims (15)
1. a kind of granulator, for manufacturing and collecting particle comprising several feeding machanisms, with feeding machanism correspond and on
Several droppers of lower connection, the receiving mechanism below dropper and dropper and receiving mechanism are covered at
Interior glove box, it is characterised in that: dropper includes quartz funnel, heating mantle, funnel upper cover, funnel protective shell, quartz leakage
Bucket is placed in heating mantle, and funnel protective shell is coated on outside heating mantle, and funnel upper cover is covered in heating mantle, and quartz funnel includes leakage
Headwall and the funnel chamber for setting and being formed is enclosed by hopper walls, hopper walls bottom end protrudes out several fistulaes, and fistulae is connected to funnel chamber, adds
Hot jacket and funnel protective shell are provided with corresponding aperture corresponding with fistulae, and after mounting, fistulae is stretched out through corresponding aperture convex
Heating mantle and funnel protective shell.
2. granulator according to claim 1, it is characterised in that: the hopper walls include half cylinder end walls, several leakages
Pipe forms symmetrical two column and occupy semicolumn bottom wall two sides.
3. granulator according to claim 2, it is characterised in that: spaced set between the adjacent fistulae of each column.
4. granulator according to claim 3, it is characterised in that: receiving mechanism include idler wheel, scraper part, driving wheel, from
The stereoscopic frame and splicing dustpan of driving wheel, fixed back-up roller wheel, driven wheel and idler wheel one end are coaxially connected, driving wheel and driven wheel
Between connected by belt or chain.
5. granulator according to claim 4, it is characterised in that: idler wheel include a main shaft and rotated coaxially with main shaft one
Mirror surface wheel, driven wheel is coaxially connected with main shaft one end and main shaft is driven by driven wheel, and dropper is being always positioned at mirror surface wheel just
Top, splicing dustpan are always positioned at the underface of mirror surface wheel.
6. granulator according to claim 5, it is characterised in that: scraper part include a fixed link, several doctor blade holders and
Several scrapers, fixed link are arranged in parallel with main shaft, and the both ends of fixed link are individually fixed on the opposite turning rolls of stereoscopic frame, often
One doctor blade holder can be slided along fixed link.
7. granulator according to claim 6, it is characterised in that: each scraper includes scraper fixed part and blade, scraper
Fixed part is fixed on doctor blade holder lower end correspondingly, and blade is directed toward the mirror surface wheel of idler wheel.
8. granulator according to claim 7, it is characterised in that: the most short spacing between blade and mirror surface wheel is no more than drop
The particle that is cooled on mirror surface wheel is fallen within along the size of mirror surface wheel radial.
9. granulator according to claim 8, it is characterised in that: stereoscopic frame includes pedestal from bottom to top, opposite one
To turning rolls, opposite a pair of of dropping section, each turning rolls is a hollow square box, and each dropping section includes the first dropping section
With the second dropping section, pedestal includes bottom plate and four support columns upwardly extending from bottom plate, and four support columns are individually fixed in bottom
On the quadrangle of plate, each turning rolls is fixed on vertically above two support columns, and the first dropping section and the second dropping section can roll
It is gone up and down above wheel carrier.
10. granulator according to claim 9, it is characterised in that: main shaft both ends, which extend through a turning rolls, makes winner
Pedestal is set to this on turning rolls.
11. granulator according to claim 10, it is characterised in that: the both ends of splicing dustpan are individually fixed in pair of pedestal
On the support column of angle.
12. granulator according to claim 11, it is characterised in that: feeding machanism include barrel, discharger and up and down
It is separately connected the star-shaped discharge valve of barrel and discharger, discharger is provided with the switch of control discharge velocity.
13. granulator according to claim 12, it is characterised in that: a weighing sensor built in quartz funnel, and weigh
The switch of sensor and discharger is electrically connected.
14. granulator according to claim 13, it is characterised in that: barrel includes the main body cylinder, autonomous of hollow cylinder
The aggregate tube and one that body cylinder extends downwardly are covered on the barrel lid above main body cylinder.
15. a kind of method of granulating uses granulator described in claim 14, it is characterised in that: the method for granulating includes such as
Lower step:
S1, solid material is packed into the barrel of feeding machanism；Solid material passes sequentially through star-shaped discharge valve and discharger；
S2, discharger switch control solid material enter the rate of dropper from discharger；
S3, solid material enter quartz funnel from discharger, start the heating of heating mantle, and heating mantle provides for melting solid material
Heat source, solid material are melt into as liquid material in quartz funnel；
S4, liquid material are dripped by fistulae on mirror surface wheel, and liquid material is cooled into particle；
S5, as mirror surface wheel rotates, partial particulate drops in splicing dustpan naturally under the effect of gravity, the portion not fallen off naturally
Particle is divided to be scraped after touching blade to splicing dustpan.
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| CN208107439U (en) * | 2018-03-20 | 2018-11-16 | 河南佰利联新材料有限公司 | A kind of dust arrester goes out material conveying device |
| CN209005698U (en) * | 2018-09-30 | 2019-06-21 | 唐山市奥博尔饲料有限公司 | A kind of ring die pelleter |
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