CN103624876A - Plough paddle type mixer as well as mixing device and mixing paddles thereof - Google Patents

Plough paddle type mixer as well as mixing device and mixing paddles thereof Download PDF

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Publication number
CN103624876A
CN103624876A CN201310656311.9A CN201310656311A CN103624876A CN 103624876 A CN103624876 A CN 103624876A CN 201310656311 A CN201310656311 A CN 201310656311A CN 103624876 A CN103624876 A CN 103624876A
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CN
China
Prior art keywords
blade
paddle
main shaft
rotary main
cylindrical shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310656311.9A
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Chinese (zh)
Inventor
翟志鸿
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SHUANGLONG GROUP CO Ltd
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SHUANGLONG GROUP CO Ltd
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Publication date
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Priority to CN201310656311.9A priority Critical patent/CN103624876A/en
Publication of CN103624876A publication Critical patent/CN103624876A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/14Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • B28C5/0818Charging or discharging gates or chutes; Sealing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • B28C5/0831Drives or drive systems, e.g. toothed racks, winches

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention aims at providing a plough paddle type mixer as well as a mixing device and mixing paddles thereof. The mixer is used for mixing building materials; the mixing paddles in the mixer are mounted on a rotary main shaft in a barrel body and comprise paddle handles and paddle blades; each mixing paddle is characterized by comprising a paddle handle, a paddle blade and a reverse wing plate, the paddle blade is arranged at the outer end of the paddle handle, the reverse wing plate is more inwardly arranged on the paddle handle relative to the paddle blade, the paddle blade is obliquely crossed with the shaft line of the rotary main shaft and the horizontal section of the barrel body, the paddle handle is orthogonal to the shaft line of the rotary main shaft, and the oblique directions of the reverse wing plate and the paddle blade relative to the rotary main shaft are opposite.

Description

Pears paddle mixer and agitating device thereof, paddle
Technical field
The present invention relates to mixer and paddle thereof.
Background technology
Along with scientific and technical progress, the building material such as thermal insulation mortar, extraordinary mortar is widely used, the hybrid process equipment kind of producing for these building materials is also varied, and main type has agravic paddle type mixer, coulter type mixer, ribbon mixer etc.In the practical application of producing, this several equipment respectively has speciality, also has corresponding limitation, or incorporation time is long, and material adaptability is weak or the uniformity is not high.Therefore most production of construction materials units are all furnished with mixing apparatus processing with the different products that require for different output that big or small type is different, and the overlapping investment that so just brings equipment for production unit, has increased production cost.
The problem of encountering for solving production of construction materials, need to develop a kind of mixing machine special targetedly, can meet the requirement that building materials mixing match is greatly different, proportion particle diameter difference is large, mixing cycle is short, unit volume production capacity is high, for manufacturer brings direct benefit.
Summary of the invention
The object of the present invention is to provide a kind of pears paddle mixer and agitating device thereof, paddle, for the hybrid process of building materials.
For realizing the paddle of described object, for being arranged on the rotary main shaft in a cylindrical shell, comprise loom and blade, be characterized in, described blade comprises loom, blade and reverse wing plate, and blade is arranged on the outer end of loom, oppositely the relative blade of wing plate is more inwardly arranged in loom, the axis oblique of blade and rotary main shaft and with the horizontal section oblique of cylindrical shell, the axis quadrature of loom and rotary main shaft, described reverse wing plate is oblique contrary with the relative rotary main shaft of blade.
For realizing the agitating device of described object, comprise cylindrical shell, rotary main shaft and paddle, rotary main shaft be supported on cylindrical shell in also free to rotate in the heart, a plurality of paddles are arranged on rotary main shaft, spaced apart at axial and circumferential respectively, paddle comprises loom and blade, be characterized in, described blade comprises loom, blade and oppositely wing plate, blade is arranged on the outer end of loom, oppositely the relative blade of wing plate is more inwardly arranged in loom, thereby the axis oblique of blade and rotary main shaft and the direction that promotes material according to blade are to the horizontal section oblique of turning in cylindrical shell with cylindrical shell, the axis quadrature of loom and rotary main shaft, described reverse wing plate is oblique contrary with the relative rotary main shaft of blade.
For realizing the pears paddle mixer of described object, comprise drive unit, fluid coupling, reductor, shaft coupling and arbitrary aforesaid agitating device, between drive unit and reductor, by fluid coupling, connect, between the rotary main shaft of agitating device and reductor, by shaft coupling, connected, fly knife device is also installed on the cylindrical shell of agitating device.
Aforesaid invention, its further feature is that the axis of blade and rotary main shaft is 60 degree angles.
Aforesaid invention, its further feature is that blade becomes 60 degree angles with the horizontal section of cylindrical shell.
Aforesaid invention, its further feature is that the area of described reverse wing plate is less than the area of described blade.
Described pears paddle mixer, its further feature is, mixing for building material industry article, cylinder body bottom disposes the pneumatic drawing mechanism that opens the door greatly, the discharge door of the pneumatic drawing mechanism that opens the door greatly can make cylinder body bottom all open, the pneumatic drawing mechanism that opens the door greatly disposes mechanical locking structure, so that powering-off state bottom discharge Men Buhui opens, cylindrical shell top is provided with through type cleaning door.
The new material that the paddle of aforementioned invention and the global design of mixer can effectively meet the various different formulations of building material industry mixes demand.
Accompanying drawing explanation
Fig. 1 is the schematic elevational view of ploughing paddle mixer in the embodiment of the present invention.
Fig. 2 is the cross sectional representation of pears paddle mixer in the embodiment of the present invention.
Fig. 3 is that in the embodiment of the present invention, the schematic master of the agitating device under duty looks cutaway view.
Fig. 4 is the agitating device cross sectional representation under duty in the embodiment of the present invention.
The specific embodiment
As shown in Figure 1, plough paddle mixer comprises drive unit 1, fluid coupling 2, reductor 3, shaft coupling 4, agitating device, mounting seat 8.
Agitating device comprises cylindrical shell 5, rotary main shaft 12 and a plurality of paddle 9, the two ends of rotary main shaft 12 free to rotately by bearings on cylindrical shell 5, cylindrical shell 5 is by mounting seat 8 fixed supports, drive unit 1 connects reductor 3 by fluid coupling 2, and reductor 3 connects agitating device by shaft coupling 4.
A plurality of paddles 9 are arranged spaced apart on rotary main shaft 12 on circumferential and axial, a plurality of paddles 9 are arranged according to spiral way in the layout form of rotary main shaft 12, according to walking of spiral, always arrange a plurality of paddles 9, can always arrange a plurality of paddles 9 according to walking of one or more hand of spiral.
As shown in Figure 2, fly knife device 10 is also installed on cylindrical shell 5, the fly cutter parts of fly knife device 10 (being positioned at cylindrical shell 5) play the effect of shearing material, and the driving part of fly cutter parts 10 is arranged on the outside of cylindrical shell 5, can arrange a plurality of fly knife devices 10 on cylindrical shell 5.
As shown in Figure 1, the top of cylindrical shell 5 is provided with cleaning door 6, and cleaning door 6 is through type cleaning door, and after cleaning door 6 is opened, omnibearing cleaning is carried out in each corner of fly cutter parts, paddle 9 and cylindrical shell in can direct many cylindrical shells 5.
As depicted in figs. 1 and 2, the bottom of cylindrical shell 5 is provided with the pneumatic drawing mechanism 11 that opens the door greatly, and it comprises the discharge door of cylindrical shell 5, once discharge door is opened, just all open the bottom of cylindrical shell 5.The pneumatic drawing mechanism 11 that opens the door greatly also disposes connecting rod self-locking device 7, connecting rod self-locking device 7(mechanical locking structure) so that powering-off state bottom discharge Men Buhui opens.
As shown in Figure 3 and Figure 4, paddle 9 comprises loom 91, reverse wing plate 92 and blade 93, blade 93 is arranged on the outer end of loom 91, oppositely the relative blade 93 of wing plate 92 is more inwardly arranged in loom 91, blade 93 (is intersecting under spatiality with the axis oblique of rotary main shaft 12, not in abutting connection with intersecting)) and the direction that promotes materials according to blade 93 to cylindrical shell 5 interior turn over (as shown in Figure 3) thus with the horizontal section oblique of cylindrical shell 5, the axis quadrature of loom 91 and rotary main shaft 12, oppositely wing plate 92 rotary main shaft 12 relative to blade 93 is oblique contrary, right several the paddles 9 as shown in Figure 3, oppositely wing plate 92 is oblique left, and blade 93 is oblique to the right.
Preferably, blade 93 is 60 degree with the angle of the axis of rotary main shaft 12.Blade 93 is also 60 degree with the angle of the horizontal section of cylindrical shell 5.But, previous embodiment is obviously not limited to this, can be according to the difference of the difference of material and mixed effect and corresponding adjustment.
Oppositely the area of wing plate 92 is less than the area of blade 93, so that obtain better mixing effect.
As shown in Figure 3 and Figure 4, the mixing function of previous embodiment obtains 3D mixed effect, and its mixing principle is described as follows:
First blade 93 has an angle with the axis of rotary main shaft 12, can promote material along the cylindrical shell 5 circumference convective motion of spinning while making blade 93 rotation.Simultaneously blade 93, to intracardiac turning in cylindrical shell 5, has an angle with cylindrical shell 5 horizontal sections, is similar to slice shape, during blade 93 rotation, partial material can be taken up to ecto-entad along cone-type spiral orbiting motion, make outer material mutually merge diffusion with the reverse material of internal layer fast, reach mixed effect.At the middle part of loom 91, be designed with reverse wing plate 92, under turning effort, can promote internal layer material and form reverse acting spiral convection current.Circulating of the storeroom of several different levels above, can make at short notice material in cylindrical shell form by outer and in, left and right intersects, the three-dimensional mixed effect of diffusion layer by layer.In Fig. 3 and in Fig. 4, arrow 21 represents outer ring circumference Flow of Goods and Materials track, and arrow 22 represents material ecto-entad flow trace, and arrow 23 is illustrated in material cutting diffusion track under blade effect, arrow 24 represents inner ring material convection current track, arrow 25 indication equipment direction of rotation.
Under the effect of drive unit 1 High Rotation Speed, can make material not the German number of labor reach more than 7.0, under this rotating speed, in cylinder, material forms state of weightlessness very soon, and be evenly distributed on cylindrical shell perisporium, blade can drive material to mix in cylindrical shell 360 degree scopes fully like this, and because flowing of material after weightlessness is freer, be affected by gravity less, make diffusion more violent, thereby mixing velocity improves greatly, general incorporation time can reach 45S~120S, and the incorporation time of conventional mixing apparatus is more than 300S.
At present conventional coulter type mixer and the mixing principle of Homotaxial paddle mixer are basic identical, by the turning effort of stirring parts, make material shape become troposphere, and at stirring parts edge, form local material diffusion motion, the mobile Action of Gravity Field that almost leans on material due to material internal layer material, flowing velocity is slow, and material internal layer and outer interlayer do not have the effect of forced convertion diffusion yet, so mixing effect is not obvious.In addition, because the rotating speed of conventional mixer is lower, material can not be thrown completely, cannot form state of weightlessness, and material flow is freely falling body after eminence, so agitating device only has 2/3 to play a role, and efficiency is obviously not as good as previous embodiment.
The plough paddle mixer of previous embodiment is the special-purpose mixing apparatus for building material industry particular design, has that incorporation time is short, good mixing effect, is applicable to the feature of the mixing of most of building materials new materials, and its operation principle is:
When 1, equipment work starts, first start the main motor of drive unit 1(), under fluid coupling 2 effects, start the steadily rear fly knife device 10 that starts.
2, material to be mixed adds mixer through cylindrical shell top charge door, the proportioning of material is controlled by upstream measuring equipment, material is through the effect of paddle, around barrel, do high-speed screw circular motion, and form fast state of weightlessness, material is under the effect of the inclination angle of paddle simultaneously, by cylindrical shell two ends, along axis, to center, converged, the material counter motion at center forms closed hoop convection current, and in convection process, between material, strong shearing diffusion effect makes the material of heterogeneity reach fast homogenising.Material by blade pushing course in, the high speed fly cutter rotary area of can constantly flowing through, under the high velocity impact of fly cutter parts, material forms eddy current state, high-speed material and low speed material form high shear force, make to be difficult to the material that mixes also very easily reach uniform effect.
3, after mixing, control system instruction drawing mechanism magnetic valve is opened, and equipment discharge door is opened under cylinder action, and device bottom is fully opened, and material is fast blanking under Action of Gravity Field, does not almost have residually, and mixing cycle finishes.
The solid of minimum ten thousand/ratio that previous embodiment can be used for the building material industries such as dry-mixed mortar mixes, and the new material that effectively solves the various different formulations of building material industry mixes.In previous embodiment, adopt associated mode drive unit 1 that the not German several more than 7.0 high-speed driving power of labor is provided.Drive unit 1 connects with reductor 3 by fluid coupling 2, can realize mechanical type soft starting, improves apparatus of load and starts ability 50%; Reductor 3 adopts high efficiency compact H series hard-tooth surface speed reducer, and this reductor has the advantages that efficiency is high, anti-impact force is strong, is applicable to the characteristic of building materials heavy load.
The agitating device of previous embodiment combines the colter formula agitator high dispersive ability of mixing and mixes the feature of ability with the high convection current of flat arm stirrer, no longer be confined to the mixing of single aspect, formed the effect that 3D mixes, thereby greatly accelerated incorporation time, average incorporation time 45S~120S;
In previous embodiment, the main material of paddle and cylindrical shell adopts the wear-resisting design of high chrome, reduces corrective maintenance cost.The mixer of previous embodiment is for adapting to the Fast Installation of building equipment, the needs of construction, and mixer can be designed to tower structure, can integral hoisting.
The beneficial effect of previous embodiment is: 1, extremely short incorporation time and preferably mixed effect, for the large output of skinny device provides possibility, can greatly reduce subscriber equipment and drop into and management cost.2, special stirring structure, makes equipment be applicable to the mixing of nearly all building materials powder, and material multi-form, proportioning is added, and can reach rapid mixing effect, and mixing efficiency improves 50% than conventional equipment, really accomplishes Universal efficient.3, modular design, facilitates customization and installation, can with the seamless connection of user's process system, meet the requirement that automation is controlled.

Claims (10)

1. paddle, for being arranged on the rotary main shaft in a cylindrical shell, comprise loom and blade, it is characterized in that, described blade comprises loom, blade and reverse wing plate, and blade is arranged on the outer end of loom, oppositely the relative blade of wing plate is more inwardly arranged in loom, the axis oblique of blade and rotary main shaft and with the horizontal section oblique of cylindrical shell, the axis quadrature of loom and rotary main shaft, described reverse wing plate is oblique contrary with the relative rotary main shaft of blade.
2. paddle as claimed in claim 1, is characterized in that, the axis of blade and rotary main shaft is 60 degree angles.
3. paddle as claimed in claim 1, is characterized in that, blade becomes 60 degree angles with the horizontal section of cylindrical shell.
4. paddle as claimed in claim 1, is characterized in that, the area of described reverse wing plate is less than the area of described blade.
5. agitating device, comprise cylindrical shell, rotary main shaft and paddle, rotary main shaft be supported on cylindrical shell in also free to rotate in the heart, a plurality of paddles are arranged on rotary main shaft, spaced apart at axial and circumferential respectively, paddle comprises loom and blade, it is characterized in that, described blade comprises loom, blade and oppositely wing plate, blade is arranged on the outer end of loom, oppositely the relative blade of wing plate is more inwardly arranged in loom, thereby the axis oblique of blade and rotary main shaft and the direction that promotes material according to blade are to the horizontal section oblique of turning in cylindrical shell with cylindrical shell, the axis quadrature of loom and rotary main shaft, described reverse wing plate is oblique contrary with the relative rotary main shaft of blade.
6. agitating device as claimed in claim 5, is characterized in that, the axis of blade and rotary main shaft is 60 degree angles.
7. agitating device as claimed in claim 5, is characterized in that, blade becomes 60 degree angles with the horizontal section of cylindrical shell.
8. agitating device as claimed in claim 5, is characterized in that, the area of described reverse wing plate is less than the area of described blade.
9. pears paddle mixer, comprise drive unit, fluid coupling, reductor, shaft coupling and agitating device, it is characterized in that, agitating device is the agitating device as described in any one in claim 5 to 8, between drive unit and reductor, by fluid coupling, connect, between the rotary main shaft of agitating device and reductor, by shaft coupling, connected, fly knife device is also installed on the cylindrical shell of agitating device.
10. pears paddle mixer as claimed in claim 1, it is characterized in that, mixing for building material industry article, cylinder body bottom disposes the pneumatic drawing mechanism that opens the door greatly, the discharge door of the pneumatic drawing mechanism that opens the door greatly can make cylinder body bottom all open, the pneumatic drawing mechanism that opens the door greatly disposes mechanical locking structure, so that powering-off state bottom discharge Men Buhui opens, cylindrical shell top is provided with through type cleaning door.
CN201310656311.9A 2013-12-06 2013-12-06 Plough paddle type mixer as well as mixing device and mixing paddles thereof Pending CN103624876A (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106869130A (en) * 2017-02-16 2017-06-20 常州瑞之源机械有限公司 Wet-type concrete injection apparatus
CN106113255B (en) * 2016-08-23 2018-06-29 成都市易建建筑材料有限公司 Blender separates the agitating unit and blender of sand wash
CN109926432A (en) * 2019-03-15 2019-06-25 深圳市发现环保科技有限公司 Solid organic matters fine crusher
CN109939589A (en) * 2019-03-14 2019-06-28 双龙集团有限公司 Chocolate agitator tank
CN110722682A (en) * 2019-11-15 2020-01-24 云南昆船设计研究院有限公司 A horizontal screw opposite double-blade mixing and discharging device
CN114082328A (en) * 2021-11-11 2022-02-25 扬州科博新材料有限公司 Low molecular weight polyethylene is mixing stirring device for powder
CN114311584A (en) * 2022-01-05 2022-04-12 山东庆昕机械科技有限公司 A kind of multifunctional two-stage melting method high-efficiency production equipment and process
CN116510579A (en) * 2023-05-04 2023-08-01 佛山市特赛化工设备有限公司 Vacuum powder feeding system of base material machine and vacuum powder feeding method of base material machine

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Publication number Priority date Publication date Assignee Title
US5433388A (en) * 1991-10-04 1995-07-18 Gebruder Lodige Maschinenbangesellschaft Mit, Beschrankter Haftung Usage application of a machine for recycling gypsum plaster board
CN201067950Y (en) * 2007-06-14 2008-06-04 福建南方路面机械有限公司 Horizontal stirrer with fly cutter stirring device
CN201094908Y (en) * 2007-06-14 2008-08-06 福建南方路面机械有限公司 Horizontal stirring machine with barrel configuration determined by Froude number
CN101323148A (en) * 2007-06-14 2008-12-17 福建南方路面机械有限公司 Horizontal type mixer with improved stirring device
CN201493954U (en) * 2009-09-17 2010-06-02 长安大学 Opposed mixing mechanism for asphalt forced mixer
CN203592575U (en) * 2013-12-06 2014-05-14 双龙集团有限公司 Plough paddle type mixing machine as well as agitating device and agitating paddles thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433388A (en) * 1991-10-04 1995-07-18 Gebruder Lodige Maschinenbangesellschaft Mit, Beschrankter Haftung Usage application of a machine for recycling gypsum plaster board
CN201067950Y (en) * 2007-06-14 2008-06-04 福建南方路面机械有限公司 Horizontal stirrer with fly cutter stirring device
CN201094908Y (en) * 2007-06-14 2008-08-06 福建南方路面机械有限公司 Horizontal stirring machine with barrel configuration determined by Froude number
CN101323148A (en) * 2007-06-14 2008-12-17 福建南方路面机械有限公司 Horizontal type mixer with improved stirring device
CN201493954U (en) * 2009-09-17 2010-06-02 长安大学 Opposed mixing mechanism for asphalt forced mixer
CN203592575U (en) * 2013-12-06 2014-05-14 双龙集团有限公司 Plough paddle type mixing machine as well as agitating device and agitating paddles thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106113255B (en) * 2016-08-23 2018-06-29 成都市易建建筑材料有限公司 Blender separates the agitating unit and blender of sand wash
CN106869130A (en) * 2017-02-16 2017-06-20 常州瑞之源机械有限公司 Wet-type concrete injection apparatus
CN109939589A (en) * 2019-03-14 2019-06-28 双龙集团有限公司 Chocolate agitator tank
CN109926432A (en) * 2019-03-15 2019-06-25 深圳市发现环保科技有限公司 Solid organic matters fine crusher
CN110722682A (en) * 2019-11-15 2020-01-24 云南昆船设计研究院有限公司 A horizontal screw opposite double-blade mixing and discharging device
CN114082328A (en) * 2021-11-11 2022-02-25 扬州科博新材料有限公司 Low molecular weight polyethylene is mixing stirring device for powder
CN114311584A (en) * 2022-01-05 2022-04-12 山东庆昕机械科技有限公司 A kind of multifunctional two-stage melting method high-efficiency production equipment and process
CN114311584B (en) * 2022-01-05 2025-03-07 山东庆昕机械科技有限公司 A multifunctional dual-stage melting method efficient production equipment and process
CN116510579A (en) * 2023-05-04 2023-08-01 佛山市特赛化工设备有限公司 Vacuum powder feeding system of base material machine and vacuum powder feeding method of base material machine

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Application publication date: 20140312