CN109501039A - A kind of pc particle board grinding and processing raw material device - Google Patents

A kind of pc particle board grinding and processing raw material device Download PDF

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Publication number
CN109501039A
CN109501039A CN201910011817.1A CN201910011817A CN109501039A CN 109501039 A CN109501039 A CN 109501039A CN 201910011817 A CN201910011817 A CN 201910011817A CN 109501039 A CN109501039 A CN 109501039A
Authority
CN
China
Prior art keywords
box body
stirred box
shaft
stirring
servo motor
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.)
Withdrawn
Application number
CN201910011817.1A
Other languages
Chinese (zh)
Inventor
陆国兴
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.)
Jiangsu Guoweixing Plastic Technology Co Ltd
Original Assignee
Jiangsu Guoweixing Plastic Technology 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 Jiangsu Guoweixing Plastic Technology Co Ltd filed Critical Jiangsu Guoweixing Plastic Technology Co Ltd
Priority to CN201910011817.1A priority Critical patent/CN109501039A/en
Publication of CN109501039A publication Critical patent/CN109501039A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00Conditioning or physical treatment of the material to be shaped
    • B29B13/10Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/02Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/12Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
    • B29B7/16Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/02Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22Component parts, details or accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/02Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22Component parts, details or accessories; Auxiliary operations
    • B29B7/24Component parts, details or accessories; Auxiliary operations for feeding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention discloses a kind of pc particle board grinding and processing raw material devices, including pulverizing component, funnel pipe, stirred box body, screening orifice union and subregion mixing component, screening orifice union and subregion mixing component are installed in the stirred box body, funnel pipe is installed at the top of the stirred box body, and the funnel pipe and stirred box body inner cavity connection, it is equipped at the top of the funnel pipe and pulverizes component;The subregion mixing component includes discharging circular slab, dumping pit, stirring rod, shaft and servo motor b, and stirred box body bottom middle position has been screwed servo motor b;The present invention improves rolling effect, crushes to material, uniformly provide help to later period material stirring;Be conducive to screen out the larger impurity being mingled with inside material, while advantageously reducing the speed of blanking, avoids the inventory of stirring too big;Be conducive to expect to carry out subregion stirring, make stirring more evenly, improve stirring efficiency.

Description

A kind of pc particle board grinding and processing raw material device
Technical field
The present invention relates to pc particle board processing equipment field, specially a kind of pc particle board grinding and processing raw material device.
Background technique
Pc plate is also designated as polycarbonate plate, is a kind of engineering plastics that comprehensive performance is splendid, has outstanding object Reason, mechanical, electrical and hot property, call it by the fine-sounding name of " king of transparent plastic ".Pc particle board is one of pc plate, for pc Grain board raw material processing, crushing is a critically important step, but existing pc particle board grinding and processing raw material device is lacked there are following Fall into: raising rolling effect is bad, is not easy to provide help to later period material stirring;Be unfavorable for screening out be mingled with inside material compared with Big impurity, while being unfavorable for reducing the speed of blanking, cause the inventory of stirring too big, keeps stirring uneven;It is unfavorable for expect Subregion stirring is carried out, stirring is not uniform enough, and stirring efficiency is low;For these defects, so we design a kind of pc particle board original The broken processing unit (plant) of feed powder is necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of pc particle board grinding and processing raw material devices, rolling effect are improved, to material It is crushed, uniformly provides help to later period material stirring;Be conducive to screen out the larger impurity being mingled with inside material, have simultaneously Conducive to the speed for reducing blanking, avoid the inventory of stirring too big;Be conducive to expect to carry out subregion stirring, make stirring more evenly, Improve stirring efficiency.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of pc particle board grinding and processing raw material device, including pulverize component, funnel pipe, stirred box body, screening throttling Component and subregion mixing component are equipped with screening orifice union and subregion mixing component, the agitator tank in the stirred box body Funnel pipe, and the funnel pipe and stirred box body inner cavity connection are installed at the top of body, are equipped at the top of the funnel pipe Pulverize component;
The subregion mixing component includes discharging circular slab, dumping pit, stirring rod, shaft and servo motor c, the stirring Bottom of box middle position has been screwed servo motor c, and the servo motor c output shaft by shaft coupling and turns Axis transmission connection, and the shaft is vertically arranged through stirred box body bottom interior wall, the shaft interlude is socketed with discharging circle Shape plate, and the stirred box body inner wall offers annular groove, the discharging circular slab outer rim and annular groove are clamped, the discharging circle It is uniformly provided with several dumping pits in shape plate plate face, the shaft, which is located at discharging circular slab upper and lower part end and is mounted on, to be stirred Mix stick.
As a further solution of the present invention: the screening orifice union include threaded rod, servo motor b, without hamper and Threaded hole, the stirred box body top inner wall offers sliding slot, and the stirred box body side center tip position is equipped with and watches Motor b is taken, the threaded rod both ends are correspondingly connected with stirred box body two sides inner wall, and the servo motor b output shaft passes through shaft coupling Device and threaded rod one end are sequentially connected, and the no hamper two sides symmetrically offer each threaded hole, and the no hamper passes through spiral shell Pit is threadedly coupled with threaded rod, and the no hamper top ports are located at below funnel pipe discharge end, the uncovered cassette bottom Portion is uniformly provided with several blanking holes.
As a further solution of the present invention: the component that pulverizes includes bottomless rolling guide wheel, the without capping cabinet, first Two roll guide wheel, servo motor a, driven shaft, driving shaft, driven spur gear and active spur gear, the funnel pipe top sides Edge is correspondingly connected with bottomless without capping bottom of box edge, and described bottomless without capping, cabinet side middle position is on the upper side passes through screw It is fixed with servo motor a, the both ends of main drive shaft is correspondingly connected with bottomless without capping cabinet two sides inner wall, the servo motor a Output shaft is driven axis connection by shaft coupling and driving shaft, and the driving shaft two sides are symmetrically arranged with each driven shaft, and institute Driven shaft both ends are stated to be correspondingly connected with bottomless without capping cabinet two sides inner wall, it is equidistant on the driving shaft to be socketed with multiple first Roll guide wheel, it is equidistant on the driven shaft to be socketed with multiple second and roll guide wheel, and multiple described second roll guide wheel and more A first rolls the arrangement of guide wheel sequence, is socketed with active spur gear on the driving shaft, is socketed on the active spur gear Driven spur gear, and the driven spur gear and active spur gear are intermeshed.
As a further solution of the present invention: stirred box body bottom both ends are symmetrically arranged with each discharge nozzle, and Stirred box body bottom interior wall both ends are symmetrically arranged with each hang plate.
As a further solution of the present invention: stirred box body bottom surrounding is welded with support leg.
Beneficial effects of the present invention:
1, by material pour into it is bottomless without capping cabinet in, servo motor a drive driving shaft and active spur gear rotation, thus It drives first to roll guide wheel rotation, since active spur gear and driven spur gear are intermeshed, so that driven shaft be driven to rotate, makes Second roll guide wheel rotation, due to first roll guide wheel and second roll guide wheel sequence arrangement, improve rolling effect, to material It is crushed, uniformly provides help to later period material stirring;
2, smashed material by fall under funnel pipe in stirred box body without hamper inside, servo motor b drives Threaded rod rotation, since threaded rod is threadedly coupled with the threaded hole on no hamper, thus drive without hamper move, drive material into Row movement, falls material by blanking hole, and movement keeps blanking convenient, while screening orifice union reduction blanking velocity, the mistake Journey is conducive to screen out the larger impurity being mingled with inside material, while advantageously reducing the speed of blanking, avoids the material of stirring It measures too big;
3, the material after screening throttling is fallen on discharging circular slab, and servo motor c drives shaft rotation, is stirred to drive Stick rotation is mixed, since material falls to lower part from top by the dumping pit on discharging circular slab, since dumping pit keeps blanking fast Degree reduces, and discharging circular slab upper and lower part is made to have material, and material is carried out subregion stirring, the process, be conducive to will to expect into The stirring of row subregion, makes stirring more evenly, improves stirring efficiency.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is overall structure of the present invention;
Fig. 2 is that the present invention pulverizes assembly plan view;
Fig. 3 is whole interior structural schematic diagram of the present invention;
Fig. 4 is whole interior structural schematic diagram of the present invention;
In figure: 1, pulverizing component;11, bottomless without capping cabinet;12, first guide wheel is rolled;13, second guide wheel is rolled;14, Servo motor a;15, driven shaft;16, driving shaft;17, driven spur gear;18, active spur gear;2, funnel pipe;3, agitator tank Body;4, orifice union is screened;41, threaded rod;42, servo motor b;43, without hamper;44, threaded hole;5, subregion mixing component; 51, discharging circular slab;52, dumping pit;53, stirring rod;54, shaft;55, servo motor c;6, discharge nozzle.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected Range.
As shown in Figs 1-4, a kind of pc particle board grinding and processing raw material device, including pulverize component 1, funnel pipe 2, stirring Cabinet 3 screens orifice union 4 and subregion mixing component 5, and screening orifice union 4 and subregion stirring group are equipped in stirred box body 3 Part 5 is equipped with funnel pipe 2, and funnel pipe 2 and 3 inner cavity connection of stirred box body, 2 top of funnel pipe at the top of stirred box body 3 It is equipped with and pulverizes component 1;
Subregion mixing component 5 includes discharging circular slab 51, dumping pit 52, stirring rod 53, shaft 54 and servo motor c55, 3 bottom middle position of stirred box body has been screwed servo motor c55, and servo motor c55 output shaft passes through shaft coupling Device and shaft 54 are sequentially connected, and shaft 54 is vertically arranged through 3 bottom interior wall of stirred box body, and 54 interlude of shaft, which is socketed with, to be unloaded Expect circular slab 51, and 3 inner wall of stirred box body offers annular groove, 51 outer rim of discharging circular slab and annular groove are clamped, and discharging is round Several dumping pits 52 are uniformly provided in 51 plate face of plate, shaft 54 is located at 51 upper and lower part end of discharging circular slab and is mounted on Stirring rod 53 is conducive to expect to carry out subregion stirring, makes stirring more evenly, improve stirring efficiency;
Screening orifice union 4 includes threaded rod 41, servo motor b42, without hamper 43 and threaded hole 44, and stirred box body 3 is pushed up Portion's inner wall offers sliding slot, and 3 side center tip position of stirred box body is equipped with servo motor b42,41 both ends of threaded rod with 3 two sides inner wall of stirred box body is correspondingly connected with, and servo motor b42 output shaft is sequentially connected by shaft coupling and 41 one end of threaded rod, No 43 two sides of hamper symmetrically offer each threaded hole 44, and no hamper 43 is threadedly coupled by threaded hole 44 with threaded rod 41, And be located at below 2 discharge end of funnel pipe without 43 top ports of hamper, no 43 bottom of hamper is uniformly provided with several blankings Hole is conducive to screen out the larger impurity being mingled with inside material, while advantageously reducing the speed of blanking, avoids the material of stirring It measures too big;
Pulverizing component 1 includes bottomless rolling guide wheel 12 without capping cabinet 11, first, second rolling guide wheel 13, servo motor A14, driven shaft 15, driving shaft 16, driven spur gear 17 and active spur gear 18,2 top edge of funnel pipe and bottomless no envelope 11 bottom margin of top box body is correspondingly connected with, and bottomless without covering, 11 side middle position of cabinet is on the upper side to be screwed servo electricity Machine a14,16 both ends of driving shaft are correspondingly connected with bottomless without capping 11 two sides inner wall of cabinet, and servo motor a14 output shaft passes through connection Axis device and driving shaft 16 are driven axis connection, and 16 two sides of driving shaft are symmetrically arranged with each driven shaft 15, and 15 both ends of driven shaft It is correspondingly connected with bottomless without capping 11 two sides inner wall of cabinet, it is equidistant on driving shaft 16 to be socketed with multiple first and roll guide wheel 12, It is equidistant on driven shaft 15 to be socketed with multiple second and roll guide wheel 13, and multiple second roll guide wheel 13 and roll with multiple first and lead The arrangement of 12 sequences is taken turns, active spur gear 18 is socketed on driving shaft 16, driven spur gear 17 is socketed on active spur gear 18, And driven spur gear 17 is intermeshed with active spur gear 18, be conducive to raising material pulverizes degree, makes material stirring more Uniformly;
Wherein, 3 bottom both ends of stirred box body are symmetrically arranged with each discharge nozzle 6, and 3 bottom interior wall both ends of stirred box body It is symmetrically arranged with each hang plate, be conducive to discharge and assists blanking, 3 bottom surrounding of stirred box body is welded with support Foot is conducive to be supported.
The working principle of the invention: by material pour into it is bottomless without capping cabinet 11 in, servo motor a14 drive driving shaft 16 It is rotated with active spur gear 18, to drive first to roll the rotation of guide wheel 12, due to active spur gear 18 and driven spur gear 17 Intermeshing, thus drive driven shaft 15 rotate, make second roll guide wheel 13 rotation, due to first roll guide wheel 12 and second grind The arrangement of 13 sequence of guide wheel is pressed, rolling effect is improved, material is crushed, uniformly provides help to later period material stirring;Powder Material after broken by fallen under funnel pipe 2 in stirred box body 3 without hamper 43 inside, servo motor b42 drives threaded rod 41 rotations, since threaded rod 41 is threadedly coupled with the threaded hole 44 on no hamper 43, to drive, band animal mobile without hamper 43 Material is moved, and falls material by blanking hole, and movement keeps blanking convenient, while screening the reduction blanking velocity of orifice union 4, The process is conducive to screen out the larger impurity being mingled with inside material, while advantageously reducing the speed of blanking, avoids stirring Inventory is too big;Material after screening throttling is fallen on discharging circular slab 51, and servo motor c55 drives shaft 54 to rotate, from And stirring rod 53 is driven to rotate, since material falls to lower part from top by the dumping pit 52 on discharging circular slab 51, due to Dumping pit 52 reduces blanking velocity, and 51 upper and lower part of discharging circular slab is made to have material, and material is carried out subregion stirring, should Process is conducive to expect to carry out subregion stirring, makes stirring more evenly, improve stirring efficiency.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (5)

1. a kind of pc particle board grinding and processing raw material device, which is characterized in that including pulverizing component (1), funnel pipe (2), stirring Cabinet (3), screening orifice union (4) and subregion mixing component (5) are mixed, screening throttling group is installed on the stirred box body (3) Part (4) and subregion mixing component (5), stirred box body (3) top is equipped with funnel pipe (2), and the funnel pipe (2) With stirred box body (3) inner cavity connection, funnel pipe (2) top, which is equipped with, pulverizes component (1);
The subregion mixing component (5) includes discharging circular slab (51), dumping pit (52), stirring rod (53), shaft (54) and watches It takes motor c (55), stirred box body (3) bottom middle position has been screwed servo motor c (55), and described watches It takes motor c (55) output shaft to be sequentially connected by shaft coupling and shaft (54), and the shaft (54) runs through stirred box body (3) bottom Portion's inner wall is vertically arranged, and shaft (54) interlude is socketed with discharging circular slab (51), and the stirred box body (3) inner wall is opened Equipped with annular groove, discharging circular slab (51) outer rim and annular groove are clamped, and are uniformly opened in discharging circular slab (51) plate face Equipped with several dumping pits (52), the shaft (54) is located at discharging circular slab (51) upper and lower part end and is mounted on stirring rod (53)。
2. a kind of pc particle board grinding and processing raw material device according to claim 1, which is characterized in that the screening throttling Component (4) includes threaded rod (41), servo motor b (42), without hamper (43) and threaded hole (44), stirred box body (3) top Portion's inner wall offers sliding slot, and the stirred box body (3) side center tip position is equipped with servo motor b (42), the spiral shell Rasp bar (41) both ends are correspondingly connected with stirred box body (3) two sides inner wall, servo motor b (42) output shaft by shaft coupling with The transmission connection of threaded rod (41) one end, no hamper (43) two sides symmetrically offer each threaded hole (44), the uncovered Box (43) is threadedly coupled by threaded hole (44) with threaded rod (41), and no hamper (43) top ports are located at funnel pipe (2) below discharge end, no hamper (43) bottom is uniformly provided with several blanking holes.
3. a kind of pc particle board grinding and processing raw material device according to claim 1, which is characterized in that described to pulverize component (1) include it is bottomless without capping cabinet (11), first roll guide wheel (12), second roll guide wheel (13), servo motor a (14), from Moving axis (15), driving shaft (16), driven spur gear (17) and active spur gear (18), funnel pipe (2) top edge with Bottomless to be correspondingly connected with without capping cabinet (11) bottom margin, described bottomless without capping, cabinet (11) side middle position is on the upper side passes through Screw is fixed with servo motor a (14), driving shaft (16) both ends with it is bottomless without capping cabinet (11) two sides inner wall it is corresponding company It connects, servo motor a (14) output shaft is driven axis connection, driving shaft (16) two sides by shaft coupling and driving shaft (16) It is symmetrically arranged with each driven shaft (15), and the driven shaft (15) both ends and bottomless without capping cabinet (11) two sides inner wall pair It should connect, it is equidistant on the driving shaft (16) to be socketed with multiple first and roll guide wheel (12), it is equidistant on the driven shaft (15) It is rolled guide wheel (13) from being socketed with multiple second, and multiple described second roll guide wheel (13) and multiple first and roll guide wheel (12) Sequence arrangement, is socketed with active spur gear (18) on the driving shaft (16), be socketed on the active spur gear (18) from Dynamic spur gear (17), and the driven spur gear (17) and active spur gear (18) are intermeshed.
4. a kind of pc particle board grinding and processing raw material device according to claim 1, which is characterized in that the stirred box body (3) bottom both ends are symmetrically arranged with each discharge nozzle (6), and the stirred box body (3) bottom interior wall both ends are symmetrically arranged with Each hang plate.
5. a kind of pc particle board grinding and processing raw material device according to claim 1, which is characterized in that the stirred box body (3) bottom surrounding is welded with support leg.
CN201910011817.1A 2019-01-07 2019-01-07 A kind of pc particle board grinding and processing raw material device Withdrawn CN109501039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910011817.1A CN109501039A (en) 2019-01-07 2019-01-07 A kind of pc particle board grinding and processing raw material device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910011817.1A CN109501039A (en) 2019-01-07 2019-01-07 A kind of pc particle board grinding and processing raw material device

Publications (1)

Publication Number Publication Date
CN109501039A true CN109501039A (en) 2019-03-22

Family

ID=65757355

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910011817.1A Withdrawn CN109501039A (en) 2019-01-07 2019-01-07 A kind of pc particle board grinding and processing raw material device

Country Status (1)

Country Link
CN (1) CN109501039A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110185086A (en) * 2019-05-16 2019-08-30 徐州益康环保科技有限公司 A kind of wetland park environment protection multifunctional water storage box
CN112143879A (en) * 2020-09-21 2020-12-29 沈宁宁 Rare earth concentrate treatment method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110185086A (en) * 2019-05-16 2019-08-30 徐州益康环保科技有限公司 A kind of wetland park environment protection multifunctional water storage box
CN112143879A (en) * 2020-09-21 2020-12-29 沈宁宁 Rare earth concentrate treatment method

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Application publication date: 20190322