CN108435323A - A kind of modified high conversion biomass liquefying equipment - Google Patents

A kind of modified high conversion biomass liquefying equipment Download PDF

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Publication number
CN108435323A
CN108435323A CN201810106469.1A CN201810106469A CN108435323A CN 108435323 A CN108435323 A CN 108435323A CN 201810106469 A CN201810106469 A CN 201810106469A CN 108435323 A CN108435323 A CN 108435323A
Authority
CN
China
Prior art keywords
face
motor
chamber
grind
liquefaction
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
CN201810106469.1A
Other languages
Chinese (zh)
Inventor
童浩
郭超杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Soft Import & Export Trading Co Ltd
Original Assignee
Guangzhou Soft Import & Export Trading Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Soft Import & Export Trading Co Ltd filed Critical Guangzhou Soft Import & Export Trading Co Ltd
Priority to CN201810106469.1A priority Critical patent/CN108435323A/en
Publication of CN108435323A publication Critical patent/CN108435323A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/02Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/06Crushing or disintegrating by disc mills with coaxial discs with horizontal axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/11Details
    • B02C7/12Shape or construction of discs

Abstract

A kind of modified high conversion biomass liquefying equipment,Including being fixedly mounted on the support arm of pedestal back end surface and being mounted on the liquefaction pedestal of the support arm front end face by lifting drive,The lifting drive includes the lifting chamber being embedded in support arm front end face,Being slidably installed in the lifting chamber has elevator,Screw-thread fit is equipped with spiral shell shape column in the elevator,Spiral shell shape column top spread ends are rotatably assorted with the lifting intracavitary roof and connect,Spiral shell shape column bottom spread ends are connected with motor power,The motor outer surface is fixedly arranged in the lifting intracavitary bottom wall,The elevator right end face is fixedly connected with the liquefaction pedestal left end face,It is provided with crushing groove in the liquefaction pedestal top end surface,It is provided with grinding device in the crushing groove,It is provided in the crushing groove inner bottom wall and grinds slot,It is described to grind the discharge chamber being equipped in slot inner bottom wall through the liquefaction base bottom end face.

Description

A kind of modified high conversion biomass liquefying equipment
Technical field
The present invention relates to processing equipment field, specially a kind of modified high conversion biomass liquefying equipment.
Background technology
Biomass liquefying process is primarily referred to as converting biomass into alcohol fuel, fuel using means such as hydrolysis, fermentations Butanol etc., hydrolysis, fermentation before carry out grinding work, to make raw material more facile hydrolysis, fermentation, current pulverising apparatus its It is low to grind efficiency, needs artificial frequent operation, and individual equipment is needed to crush stirring work before grinding, this nothing It doubts and increases equipment purchase cost and operational sequence.
Invention content
The purpose of the present invention is to provide a kind of modified high conversion biomass liquefying equipment, for overcoming the prior art In drawbacks described above.
A kind of modified high conversion biomass liquefying equipment according to the present invention, including it is fixedly mounted on pedestal rear side end The support arm in face and the liquefaction pedestal that the support arm front end face is mounted on by lifting drive, the lifting driving Device includes the lifting chamber being embedded in support arm front end face, and being slidably installed in the lifting chamber has elevator, described Screw-thread fit is equipped with spiral shell shape column in elevator, and spiral shell shape column top spread ends are rotatably assorted with the lifting intracavitary roof Connection, spiral shell shape column bottom spread ends are connected with motor power, and the motor outer surface is fixedly arranged on the liter It drops in intracavitary bottom wall, the elevator right end face is fixedly connected with the liquefaction pedestal left end face, the liquefaction pedestal top It is provided with crushing groove in end surface, grinding device is provided in the crushing groove, is provided with and grinds in the crushing groove inner bottom wall Slot, it is described to grind the discharge chamber being equipped in slot inner bottom wall through the liquefaction base bottom end face, the crushing groove and the mill Match in the left and right sides inner wall of broken slot junction equipped with sliding chamber, it is described slide to be slidably installed in chamber put in the mill The partition board left end face screw-internal thread fit of partition board in broken slot, left side is equipped with spiral shell shape bar, extends on the left of the spiral shell shape bar Power cooperation in end is equipped with the first motor, first motor be fixedly installed in it is described slide in chamber inner left wall, it is right The partition board right end face ejection cooperation of side is equipped with ejection spring element, left side it is described slide to communicate in inner wall before and after chamber set There is guidance cavity, the cavity for setting of extending equipped with left and right is communicated in the liquefaction base internal wall body on the right side of the guidance cavity, it is described Spread ends are communicated equipped with L-shaped chamber on the right side of cavity, and the L-shaped chamber communicates setting, institute with the chamber right side end wall that slides on right side The guiding bar for being slidably installed in guidance cavity and being fixedly connected with the partition board front/rear end is stated, rotates and matches in the L-shaped chamber Conjunction is provided with two groups of turntables, and the guiding bar right end face is installed with around the turntable and right with the partition board on right side The traction rope that side end face is fixedly connected, it is described grind to be installed in wall at left and right sides of slot grind block, it is described to grind block transfer Dynamic cooperation is equipped with the first steering shaft, and spread ends grind block right end face through the described of right side on the right side of first steering shaft And power cooperation in end is equipped with the second motor, second motor is fixedly arranged in the liquefaction base internal wall body, left and right The the first steering shaft circumferential exterior surface ground between block of both sides, which is installed with, grinds wheel, the liquefaction base internal wall body In be additionally provided with motor control device.
Further technical solution, the grinding device include the second steering that left and right extension is arranged in the crushing groove Axis, the second steering shaft right side spread ends are rotatably assorted with inner wall on the right side of the crushing groove to be connect, second steering shaft Left side spread ends power cooperation is equipped with third motor, and third motor outer surface is fixedly arranged on the left of the crushing groove In inner wall, second steering shaft outer surface is circumferentially installed with multigroup crushing slurry.
Further technical solution, the circumferential zygomorphism of wheel that grinds is equipped with the first oblique face, described to grind wheel left and right Both sides of the face, which are provided with, grinds tooth, and the block top end surface that grinds is provided with the second oblique face.
Further technical solution, the crushing trench bottom are provided with the oblique face of third.
Further technical solution, the motor control device include the first control device and the second control device, and described the One control device is fixedly mounted on third motor upside and is connect with the third motor circuit, second manipulation Device is fixedly mounted on second motor upside and is connect with second motor circuit.
The beneficial effects of the invention are as follows:The configuration of the present invention is simple, it is easy to operate, by being arranged in the pedestal top end surface that liquefies There is crushing groove, grinding device is provided in crushing groove, is provided in crushing groove inner bottom wall and grinds slot, grinds in slot inner bottom wall and is equipped with Discharge chamber through liquefaction base bottom end face matches to be equipped in crushing groove and the left and right sides inner wall for grinding slot junction and slide Chamber slides the partition board for being slidably installed in chamber and putting in and grinding in slot, the partition board left end face screw-internal thread fit installation in left side There are spiral shell shape bar, the spread ends power cooperation of spiral shell shape bar left side that the first motor is installed, the first motor, which is fixedly installed in, to be slided In chamber inner left wall, the partition board right end face ejection cooperation on right side is equipped with ejection spring element, the inner wall before and after sliding chamber in left side It inside communicates equipped with guidance cavity, the cavity for setting of extending equipped with left and right, cavity is communicated in the liquefaction base internal wall body on the right side of guidance cavity Right side spread ends are communicated equipped with L-shaped chamber, and L-shaped chamber communicates setting with the end wall on the right side of chamber that slides on right side, slides and match in guidance cavity Conjunction is equipped with the guiding bar being fixedly connected with partition board front/rear end, is rotated in L-shaped chamber and is equipped with two groups of turntables, guiding bar is right Side end face is installed with the traction rope for surrounding turntable and being fixedly connected with the partition board right end face on right side, grinds at left and right sides of slot It is installed in wall and grinds block, ground to be rotatably assorted in block the first steering shaft is installed, spread ends on the right side of the first steering shaft Through right side grind block right end face and end power cooperation the second motor is installed, the second motor is fixedly arranged on liquefaction base Seat inner wall in, the first steering shaft circumferential exterior surface of the left and right sides ground between block, which is installed with, grinds wheel, so as to Quantitatively discharge grinding work, increases grinding operation convenience after being blended to biomaterial, and to biomaterial blend with Grinding work is carried out by the same device, is effectively saved equipment purchase cost, is substantially increased liquefaction efficiency.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention;
Fig. 2 is the liquefaction pedestal structure schematic diagram of the present invention;
Fig. 3 is arrow direction structural schematic diagram in Fig. 2.
Specific implementation mode
With reference to Fig. 1-Fig. 3, the present invention is described in detail.
- Fig. 3 referring to Fig.1, a kind of modified high conversion biomass liquefying equipment according to an embodiment of the invention, including It is fixedly mounted on the support arm 10 of 20 back end surface of pedestal and 10 front side of the support arm is mounted on by lifting drive The liquefaction pedestal 100 of end face, the lifting drive include the lifting chamber 103 being embedded in 10 front end face of support arm, institute It states to be slidably installed in lifting chamber 103 and has elevator 104, screw-thread fit is equipped with spiral shell shape column 102 in the elevator 104, The 102 top spread ends of spiral shell shape column are rotatably assorted with 103 inner roof wall of lifting chamber and connect, 102 bottom of spiral shell shape column Spread ends are connected with 101 power of motor, and 101 outer surface of the motor is fixedly arranged on 103 inner bottom wall of lifting chamber Interior, 104 right end face of the elevator is fixedly connected with 100 left end face of liquefaction pedestal, 100 top of the liquefaction pedestal It is provided with crushing groove 143 in end face, grinding device is provided in the crushing groove 143, is arranged in 143 inner bottom wall of the crushing groove Slot 116 is ground, it is described to grind the discharge chamber 122 being equipped in 116 inner bottom wall of slot through liquefaction 100 bottom end face of pedestal, Match to be equipped in the crushing groove 143 and the left and right sides inner wall for grinding 116 junction of slot and slides chamber 132, it is described to slide It is slidably installed in chamber 132 and puts in the partition board 115 ground in slot 116, in 115 left end face of the partition board in left side Screw-thread fit is equipped with spiral shell shape bar 133, and 133 left side spread ends power cooperation of the spiral shell shape bar is equipped with the first motor 134, First motor 134 slides described in being fixedly installed in 132 inner left wall of chamber, 115 right end face of the partition board on right side Ejection cooperation is equipped with ejection spring element 114, and described slide in left side is communicated equipped with guidance cavity 151, institute in inner wall before and after chamber 132 The cavity 153 that setting of extending equipped with left and right is communicated in 100 inner wall of liquefaction pedestal on 151 right side of guidance cavity is stated, it is described logical 153 right side spread ends of chamber are communicated equipped with L-shaped chamber 156, and the L-shaped chamber 156 slides 132 right side end wall phase of chamber with the described of right side Logical to be arranged, be slidably installed the guiding bar 152 being fixedly connected with 115 front/rear end of the partition board in the guidance cavity 151, Rotation is equipped with two groups of turntables 155 in the L-shaped chamber 156, and 152 right end face of the guiding bar is installed with around institute The traction rope 154 stated turntable 155 and be fixedly connected with 115 right end face of the partition board on right side, it is described to grind slot 116 or so two Be installed in side wall and grind block 118, it is described grind to be rotatably assorted in block 118 first steering shaft 130 is installed, described first 130 right side spread ends of steering shaft grind 118 right end face of block and power cooperation in end is equipped with second through the described of right side Motor 117, second motor 117 are fixedly arranged in 100 inner wall of liquefaction pedestal, and the described of the left and right sides grinds block 130 circumferential exterior surface of the first steering shaft between 118, which is installed with, grinds wheel 121, in 100 inner wall of liquefaction pedestal also It is provided with motor control device.
Valuably, the grinding device includes the second steering shaft 141 that left and right extension is arranged in the crushing groove 143, Second steering shaft, 141 right side spread ends are rotatably assorted with 143 right side inner wall of the crushing groove and connect, and described second turns to 141 left side spread ends power cooperation of axis is equipped with third motor 136, and 136 outer surface of third motor is fixedly arranged on institute It states in 143 inner left wall of crushing groove, 141 outer surface of the second steering shaft is circumferentially installed with multigroup crushing slurry 135, to life The progress of object material efficiently blends work.
Valuably, the circumferential zygomorphism of wheel 121 that grinds is equipped with the first oblique face 123, described to grind wheel 121 or so two Side end face, which is provided with, grinds tooth 124, and 118 top end surface of block that grinds is provided with the second oblique face 131, to increase grinding effect Rate.
Valuably, 143 bottom of the crushing groove is provided with the oblique face 113 of third, consequently facilitating the biomaterial after blending It is ground in slot 116 into described.
Valuably, the motor control device includes the first control device 161 and the second control device 162, first behaviour Control device 161 is fixedly mounted on 136 upside of third motor and is connect with 136 circuit of third motor, and described the Two control devices 162 are fixedly mounted on 117 upside of the second motor and are connect with 117 circuit of the second motor, from And automatically control the velocity of rotation of third motor 136 and second motor 117.
The operation principle of the present invention is that:
The biological material of 135 pairs of slurry is crushed in use, starting third motor 136 after biomaterial is put into crushing groove 143 and driving Material carries out blending work, after blending, starts the first motor 134 and spiral shell shape bar 133 is driven to rotate, spiral shell shape bar 133 drives a left side The partition board 115 of side slides to the left, due to the effect of traction rope 154, while the partition board 115 on right side being pulled to slide to the right, so as to Biomaterial after blending quantitatively is discharged into and is ground in slot 116, discharge it is good after the first motor of reverse starting 134 make left side every Plate 115 slides to the right, and due to the effect of ejection spring element 114, the partition board 115 on right side slides to the left, until the left and right sides every Plate 115 offsets, and then, startup the second motor 117 drive, which grinds 121 rotation of wheel, to be ground work to biomaterial, Biomaterial after grinding is discharged from discharge chamber 122 automatically.
The beneficial effects of the invention are as follows:The configuration of the present invention is simple, it is easy to operate, by being arranged in the pedestal top end surface that liquefies There is crushing groove, grinding device is provided in crushing groove, is provided in crushing groove inner bottom wall and grinds slot, grinds in slot inner bottom wall and is equipped with Discharge chamber through liquefaction base bottom end face matches to be equipped in crushing groove and the left and right sides inner wall for grinding slot junction and slide Chamber slides the partition board for being slidably installed in chamber and putting in and grinding in slot, the partition board left end face screw-internal thread fit installation in left side There are spiral shell shape bar, the spread ends power cooperation of spiral shell shape bar left side that the first motor is installed, the first motor, which is fixedly installed in, to be slided In chamber inner left wall, the partition board right end face ejection cooperation on right side is equipped with ejection spring element, the inner wall before and after sliding chamber in left side It inside communicates equipped with guidance cavity, the cavity for setting of extending equipped with left and right, cavity is communicated in the liquefaction base internal wall body on the right side of guidance cavity Right side spread ends are communicated equipped with L-shaped chamber, and L-shaped chamber communicates setting with the end wall on the right side of chamber that slides on right side, slides and match in guidance cavity Conjunction is equipped with the guiding bar being fixedly connected with partition board front/rear end, is rotated in L-shaped chamber and is equipped with two groups of turntables, guiding bar is right Side end face is installed with the traction rope for surrounding turntable and being fixedly connected with the partition board right end face on right side, grinds at left and right sides of slot It is installed in wall and grinds block, ground to be rotatably assorted in block the first steering shaft is installed, spread ends on the right side of the first steering shaft Through right side grind block right end face and end power cooperation the second motor is installed, the second motor is fixedly arranged on liquefaction base Seat inner wall in, the first steering shaft circumferential exterior surface of the left and right sides ground between block, which is installed with, grinds wheel, so as to Quantitatively discharge grinding work, increases grinding operation convenience after being blended to biomaterial, and to biomaterial blend with Grinding work is carried out by the same device, is effectively saved equipment purchase cost, is substantially increased liquefaction efficiency.
Those skilled in the art can define, can in the case of not departing from overall spirit and the design of the present invention To make the various modifications for above example.It each falls within protection scope of the present invention.The protection scheme of the present invention It is subject to claims appended hereto.

Claims (5)

1. a kind of modified high conversion biomass liquefying equipment, including be fixedly mounted on pedestal back end surface support arm and The liquefaction pedestal of the support arm front end face is mounted on by lifting drive, it is characterised in that:The lifting driving dress The lifting chamber including being embedded in support arm front end face is set, being slidably installed in the lifting chamber has elevator, the liter Screw-thread fit is equipped with spiral shell shape column in drop block, and spiral shell shape column top spread ends and the lifting intracavitary roof are rotatably assorted company It connects, spiral shell shape column bottom spread ends are connected with motor power, and the motor outer surface is fixedly arranged on the lifting In intracavitary bottom wall, the elevator right end face is fixedly connected with the liquefaction pedestal left end face, at the top of the liquefaction pedestal It is provided with crushing groove in end face, grinding device is provided in the crushing groove, is provided in the crushing groove inner bottom wall and grinds slot, Described to grind the discharge chamber being equipped in slot inner bottom wall through the liquefaction base bottom end face, the crushing groove grinds slot with described Match in the left and right sides inner wall of junction equipped with sliding chamber, it is described slide to be slidably installed to put in chamber described grind slot In partition board, the partition board left end face screw-internal thread fit in left side is equipped with spiral shell shape bar, spread ends on the left of the spiral shell shape bar Power cooperation is equipped with the first motor, first motor be fixedly installed in it is described slide in chamber inner left wall, right side Partition board right end face ejection cooperation is equipped with ejection spring element, and described slide in left side is communicated before and after chamber in inner wall equipped with drawing Guide cavity communicates the cavity for setting of extending equipped with left and right, the cavity in the liquefaction base internal wall body on the right side of the guidance cavity Right side spread ends are communicated equipped with L-shaped chamber, and the L-shaped chamber communicates setting with the chamber right side end wall that slides on right side, described to draw Be slidably installed the guiding bar being fixedly connected with the partition board front/rear end in guide cavity, is rotatably assorted and sets in the L-shaped chamber Two groups of turntables are equipped with, the guiding bar right end face is installed with around the turntable and the partition board right-hand end with right side The traction rope that face is fixedly connected, it is described grind to be installed in wall at left and right sides of slot grind block, it is described to grind rotation in block and match Conjunction is equipped with the first steering shaft, and spread ends grind block right end face and end through the described of right side on the right side of first steering shaft End power cooperation is equipped with the second motor, and second motor is fixedly arranged in the liquefaction base internal wall body, the left and right sides The the first steering shaft circumferential exterior surface ground between block be installed with and grind wheel, in the liquefaction base internal wall body and also It is provided with motor control device.
2. a kind of modified high conversion biomass liquefying equipment according to claim 1, it is characterised in that:The crushing Device includes the second steering shaft that left and right extension is arranged in the crushing groove, the second steering shaft right side spread ends and institute It states inner wall on the right side of crushing groove to be rotatably assorted connection, spread ends power coordinates that be equipped with third electronic on the left of second steering shaft Machine, third motor outer surface are fixedly arranged in the crushing groove inner left wall, and second steering shaft outer surface is circumferentially solid It is starched equipped with multigroup crushing.
3. a kind of modified high conversion biomass liquefying equipment according to claim 1, it is characterised in that:It is described to grind The circumferential zygomorphism of wheel is equipped with the first oblique face, it is described grind wheel left and right sides end face and be provided with grind tooth, it is described to grind block top End surface is provided with the second oblique face.
4. a kind of modified high conversion biomass liquefying equipment according to claim 1, it is characterised in that:The crushing Trench bottom is provided with the oblique face of third.
5. a kind of modified high conversion biomass liquefying equipment according to claim 1, it is characterised in that:It is described electronic Machine control device includes the first control device and the second control device, and first control device is fixedly mounted on the third motor Side and connect with the third motor circuit, second control device be fixedly mounted on second motor upside and It is connect with second motor circuit.
CN201810106469.1A 2018-02-02 2018-02-02 A kind of modified high conversion biomass liquefying equipment Pending CN108435323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810106469.1A CN108435323A (en) 2018-02-02 2018-02-02 A kind of modified high conversion biomass liquefying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810106469.1A CN108435323A (en) 2018-02-02 2018-02-02 A kind of modified high conversion biomass liquefying equipment

Publications (1)

Publication Number Publication Date
CN108435323A true CN108435323A (en) 2018-08-24

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Application Number Title Priority Date Filing Date
CN201810106469.1A Pending CN108435323A (en) 2018-02-02 2018-02-02 A kind of modified high conversion biomass liquefying equipment

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Citations (9)

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Publication number Priority date Publication date Assignee Title
CN204620079U (en) * 2015-04-24 2015-09-09 谢锡东 A kind of Highefficientpulverizer of pulverizing capable of circulation
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CN205731371U (en) * 2016-06-29 2016-11-30 新疆维吾尔自治区人民医院 A kind of crusher for medicinal tablet automatically
CN106622480A (en) * 2017-03-01 2017-05-10 张兴明 Sesame paste grinding device provided with vertical grinding plates
CN206333951U (en) * 2016-09-01 2017-07-18 第四军医大学唐都医院 Poitioning device for pneumocentesis
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Publication number Priority date Publication date Assignee Title
CN204620079U (en) * 2015-04-24 2015-09-09 谢锡东 A kind of Highefficientpulverizer of pulverizing capable of circulation
CN205628206U (en) * 2016-05-16 2016-10-12 赤壁市美德光电通讯有限公司 Good grinding machine of efficiency of grinding
CN205700884U (en) * 2016-06-07 2016-11-23 东北林业大学 A kind of Folium Eucommiae bruisher
CN205731371U (en) * 2016-06-29 2016-11-30 新疆维吾尔自治区人民医院 A kind of crusher for medicinal tablet automatically
CN206333951U (en) * 2016-09-01 2017-07-18 第四军医大学唐都医院 Poitioning device for pneumocentesis
CN106622480A (en) * 2017-03-01 2017-05-10 张兴明 Sesame paste grinding device provided with vertical grinding plates
CN206746654U (en) * 2017-05-06 2017-12-15 卢明加 A kind of mineral breaker
CN107377116A (en) * 2017-08-03 2017-11-24 陈春女 A kind of medical traditional Chinese medicine powder breakdown mill screening plant
CN107419881A (en) * 2017-09-26 2017-12-01 张宇霞 A kind of old ceramic tile demolition machine of metope

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Application publication date: 20180824