CN108160242A - A kind of pitch crushes thermofusion device - Google Patents

A kind of pitch crushes thermofusion device Download PDF

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Publication number
CN108160242A
CN108160242A CN201711400649.2A CN201711400649A CN108160242A CN 108160242 A CN108160242 A CN 108160242A CN 201711400649 A CN201711400649 A CN 201711400649A CN 108160242 A CN108160242 A CN 108160242A
Authority
CN
China
Prior art keywords
chamber
pitch
hot melt
thermofusion
crushes
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
CN201711400649.2A
Other languages
Chinese (zh)
Inventor
杨改
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.)
Hunan Wanglong Enterprise Management Consulting Co Ltd
Original Assignee
Hunan Wanglong Enterprise Management Consulting 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 Hunan Wanglong Enterprise Management Consulting Co Ltd filed Critical Hunan Wanglong Enterprise Management Consulting Co Ltd
Priority to CN201711400649.2A priority Critical patent/CN108160242A/en
Publication of CN108160242A publication Critical patent/CN108160242A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • B02C18/10Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/22Feed or discharge means
    • B02C18/2216Discharge means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/104Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165Screen denying egress of oversize material

Abstract

The invention discloses a kind of pitches to crush thermofusion device, including pulverizing chamber, promotes chamber and hot melt chamber;The pulverizing chamber upper end is communicated with feed hopper;Sieve plate is slidably connected on the inside of the pulverizing chamber;Promotion chamber is provided on the right side of the pulverizing chamber;The right end for promoting chamber is provided with hot melt chamber, and the upper end of hot melt gun is connected by passage with promoting the right side upper end of chamber, and the outer sheath for heating chamber is equipped with deep fat chamber, and circulation mechanism is provided on the right side of deep fat chamber.It is of the invention novel in design, it is easy to operate, it is being heated after asphalt blocks are crushed, pitch hot melt can be effectively improved, the circulation mechanism of setting can keep deep fat cavity temperature constant, it is good to heat intracavitary heating effect, so as to make pitch particle melting thorough, improves the melting effect of pitch particle, the separated discharge of impurity and pitch melt cannot can not be realized moltenly by the filter plate of setting, the effect and quality of pitch melting are improved, and working efficiency is high, the degree of automation is strong.

Description

A kind of pitch crushes thermofusion device
Technical field
The present invention relates to a kind of asphalt hot-melt unit, specifically a kind of pitch crushes thermofusion device.
Background technology
Pitch in municipal road construction in occupation of critical role, wherein being applied using modified pitch as waterproof layer as road The important component of work.At present, cauldron is usually propped on the ground for the melting of pitch, put solid asphalt into and added with open fire Hot smelting.Such mode is can not meet the construction of the highway needs of modernization.The pitch bay that brick and cement are built on construction ground, It is heated with heating tube, since radiating surface is big, thermal losses is serious, and scene cleaning is difficult.Using asphalt barrel melting, asphalt blocks addition is tired Difficulty, and in being difficult to fully melt in the pitch short time of bulk, take a substantial amount of time and energy, and during discharge, part Non-fusant is mixed into asphaltic liquid and discharges together, influences the quality of asphalt melting and the quality of road pavement.
Invention content
The purpose of the present invention is to provide a kind of pitches to crush thermofusion device, to solve mentioned above in the background art ask Topic.
To achieve the above object, the present invention provides following technical solution:
A kind of pitch crushes thermofusion device, including pulverizing chamber, promotes chamber and hot melt chamber;The pulverizing chamber upper end is communicated with charging It struggles against, motor is provided on the right side of feed hopper, the output terminal of motor is fixedly connected with rotary shaft, and rotary shaft runs through the upper end of pulverizing chamber And it is rotatablely connected with pulverizing chamber;Sieve plate is slidably connected on the inside of the pulverizing chamber;Promotion is provided on the right side of the pulverizing chamber Chamber, the right side lower end of pulverizing chamber connects with promoting the left side lower end of chamber, and promotion intracavitary side is rotatably connected to the first rotating bar, and first Helical blade is installed in rotating bar;The right end for promoting chamber is provided with hot melt chamber, and the upper end of hot melt gun passes through guide It manages and is connected with promoting the right side upper end of chamber, the outer sheath for heating chamber is equipped with deep fat chamber, and circulation mechanism is provided on the right side of deep fat chamber; The hot melt intracavitary is rotatably connected to the second rotating bar, and the upper end of the second rotating bar through the upper cover plate for heating chamber and passes through belt It is rotatablely connected with the first rotating bar, stirring rod is installed in the second rotating bar of hot melt intracavitary side.
As further embodiment of the present invention:Cutting blade is symmetrically arranged in the rotary shaft.
As further scheme of the invention:The middle position of the lower end of the sieve plate is installed with vibrator, The lower end both sides of sieve plate are symmetrically installed with spring.
As further scheme of the invention:Stock guide is provided with below the sieve plate, stock guide is obliquely installed.
As further scheme of the invention:The upper end of first rotating bar is through the upper end for promoting chamber and passes through skin Band is rotatablely connected with rotary shaft.
As further scheme of the invention:The circulation mechanism includes drawing liquid pump, conduit and heating arrangements, drawing liquid pump Upper and lower ends connected by conduit with deep fat chamber, be provided with heating arrangements on the conduit of drawing liquid pump lower end.
As further scheme of the invention:The hot melt chamber inside lower end is also installed with conical filter plate, institute State the handstand setting of conical filter plate.
As further scheme of the invention:The lower end of the hot melt chamber is provided with discharge port.
Compared with prior art, the beneficial effects of the invention are as follows:
1st, asphalt blocks are ground by graininess by the pulverizing chamber of setting, improve the hot melt of pitch, save the plenty of time;
2nd, the adherency that pitch can be effectively reduced by the promotion chamber of setting is lost;
3rd, deep fat cavity temperature can be kept constant by the circulation mechanism of setting, hot melt intracavitary heating effect is good, so as to make pitch Particle fusion is thorough, improves the melting effect of pitch particle;
4th, the pitch for heating intracavitary is stirred by the stirring rod of setting, so as to be that pitch is heated evenly, improves pitch heat Molten efficiency increases the hot melt of pitch.
It is of the invention novel in design, it is easy to operate, it is being heated after asphalt blocks are crushed, pitch hot melt effect can be effectively improved Rate, the circulation mechanism of setting can keep deep fat cavity temperature constant, and hot melt intracavitary heating effect is good, so as to melt pitch particle Thoroughly, the melting effect of pitch particle is improved, the separated row of impurity and pitch melt cannot can not be realized moltenly by the filter plate of setting It puts, improves the effect and quality of pitch melting, and working efficiency is high, the degree of automation is strong.
Description of the drawings
Fig. 1 is the structure diagram that pitch crushes thermofusion device.
Fig. 2 is the stereogram that pitch crushes conical filter plate in thermofusion device.
In figure:1- pulverizing chambers, 2- feed hoppers, 3- motors, 4- rotary shafts, 5- cutting blades, 6- sieve plates, 7- springs, 8- are led Flitch, 9- vibrators, 10- promote chamber, 11- helical blades, the first rotating bars of 12-, 13- passages, the second rotating bars of 14-, 15- Deep fat chamber, 16- drawing liquid pumps, 17- heating arrangements, 18- hot melts chamber, 19- stirring rod, 20- conical filters plate, 21- discharge ports.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment shall fall within the protection scope of the present invention.
~ 2 are please referred to Fig.1, a kind of pitch crushes thermofusion device, including pulverizing chamber 1, promotes chamber 10 and hot melt chamber 18;It is described 1 upper end of pulverizing chamber is communicated with feed hopper 2, and the right side of feed hopper 2 is provided with motor 3, and output terminal and the rotary shaft 4 of motor 3 are fixed Connection, rotary shaft 4 are rotatablely connected through the upper end of pulverizing chamber 1 and with pulverizing chamber 1, and cutting is symmetrically arranged in the rotary shaft 4 Blade 5, motor 3 drive cutting blade 5 to rotate by rotary shaft 4, and cutting blade 5 crushes asphalt blocks, facilitates subsequent thermal It is molten;The inside of the pulverizing chamber 1 slidably connects sieve plate 6, and the middle position of the lower end of sieve plate 6 is installed with vibrator 9, Sieve plate 6 is driven to shake when vibrator 9 vibrates, so as to improve the screening efficiency of sieve plate 6, the lower end both sides of sieve plate 6 are symmetrically installed with Spring 7, spring 7 can improve the shaking rate of sieve plate 6, so as to further improve the screening efficiency of sieve plate 6;The lower section of the sieve plate 6 Stock guide 8 is provided with, stock guide 8 is obliquely installed.
The right side of the pulverizing chamber 1, which is provided with, promotes chamber 10, the right side lower end of pulverizing chamber 1 and the left side lower end for promoting chamber 10 Connection promotes 10 inside of chamber and is rotatably connected to the first rotating bar 12, helical blade 11 is installed in the first rotating bar 12, the One rotating bar 12 drives helical blade 11 to rotate, and the pitch particle after crushing is lifted up by helical blade 11;Described first turn The upper end of lever 12 is rotatablely connected through the upper end for promoting chamber 10 and by belt and rotary shaft 4.
The right end for promoting chamber 10 is provided with hot melt chamber 18, and the upper end of hot melt gun 18 passes through passage 13 and promotion chamber 10 Right side upper end connection, by promoted chamber 10 can reduce hot melt chamber 18 in hot gas enter in pulverizing chamber 1, so as to effectively reduce drip Green adherency loss, the outer sheath of hot melt chamber 18 are equipped with deep fat chamber 15, and the right side of deep fat chamber 15 is provided with circulation mechanism, described to follow Ring mechanism includes drawing liquid pump 16, conduit and heating arrangements 17, and the upper and lower ends of drawing liquid pump 16 are connected by conduit with deep fat chamber 15, Heating arrangements 17 are provided on the conduit of 16 lower end of drawing liquid pump, heating arrangements 17 heat 16 tapped oil of drawing liquid pump, so as to Ensure that the temperature in deep fat chamber 15 is kept constant, heating effect is good, makes pitch particle melting thorough, improves the melting of pitch particle Effect;The second rotating bar 14 is rotatably connected in the hot melt chamber 18, the upper end of the second rotating bar 14 is through the upper of hot melt chamber 18 It cover board and is rotatablely connected by belt and the first rotating bar 12, is fixedly mounted in the second rotating bar 14 of 18 inside of hot melt chamber There is stirring rod 19, the first rotating bar 12 drives the second rotating bar 14 to rotate by belt, and the second rotating bar 14 drives stirring rod 19 Rotation, stirring rod 19 is stirred the pitch in hot melt chamber 18, so as to be that pitch is heated evenly, improves pitch hot melt, Increase the hot melt effect of pitch;Hot melt 18 inside lower end of chamber is also installed with conical filter plate 20, the conical filter Plate 20, which stands upside down, to be set, and for the not slag mixed in pitch to be filtered out, the cold primer-oil after thawing passes through filter plate 20 Outflow, the lower end of the hot melt chamber 18 are provided with discharge port 21.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art The other embodiment being appreciated that.

Claims (8)

1. a kind of pitch crushes thermofusion device, including pulverizing chamber(1), promoted chamber(10)With hot melt chamber(18);It is characterized in that, institute State pulverizing chamber(1)Upper end is communicated with feed hopper(2), feed hopper(2)Right side be provided with motor(3), motor(3)Output terminal with Rotary shaft(4)It is fixedly connected, rotary shaft(4)Through pulverizing chamber(1)Upper end and and pulverizing chamber(1)Rotation connection;The crushing Room(1)Inside slidably connect sieve plate(6);The pulverizing chamber(1)Right side be provided with promotion chamber(10), pulverizing chamber(1)'s Right side lower end is with promoting chamber(10)Left side lower end connection, promoted chamber(10)Inside is rotatably connected to the first rotating bar(12), the One rotating bar(12)On be installed with helical blade(11);The promotion chamber(10)Right end be provided with hot melt chamber(18), heat Molten rifle(18)Upper end pass through passage(13)With promoting chamber(10)Right side upper end connection, heat chamber(18)Outer sheath be equipped with Deep fat chamber(15), deep fat chamber(15)Right side be provided with circulation mechanism;The hot melt chamber(18)Inside it is rotatably connected to the second rotation Bar(14), the second rotating bar(14)Upper end through hot melt chamber(18)Upper cover plate and pass through belt and the first rotating bar(12)Turn Dynamic connection, positioned at hot melt chamber(18)Second rotating bar of inside(14)On be installed with stirring rod(19).
2. pitch according to claim 1 crushes thermofusion device, which is characterized in that the rotary shaft(4)It is upper to be symmetrical arranged There is cutting blade(5).
3. pitch according to claim 1 crushes thermofusion device, which is characterized in that the sieve plate(6)Lower end centre Vibrator is installed at position(9), sieve plate(6)Lower end both sides be symmetrically installed with spring(7).
4. pitch according to claim 1 crushes thermofusion device, which is characterized in that the sieve plate(6)Lower section be provided with Stock guide(8), stock guide(8)It is obliquely installed.
5. pitch according to claim 1 crushes thermofusion device, which is characterized in that first rotating bar(12)Upper end Through promotion chamber(10)Upper end and pass through belt and rotary shaft(4)Rotation connection.
6. pitch according to claim 1 crushes thermofusion device, which is characterized in that the circulation mechanism includes drawing liquid pump (16), conduit and heating arrangements(17), drawing liquid pump(16)Upper and lower ends pass through conduit and deep fat chamber(15)Connection, drawing liquid pump (16)Heating arrangements are provided on the conduit of lower end(17).
7. pitch according to claim 1 crushes thermofusion device, which is characterized in that the hot melt chamber(18)Inside lower end is also It is installed with conical filter plate(20), the conical filter plate(20)It stands upside down and sets.
8. pitch according to claim 1 crushes thermofusion device, which is characterized in that the hot melt chamber(18)Lower end setting There is discharge port(21).
CN201711400649.2A 2017-12-22 2017-12-22 A kind of pitch crushes thermofusion device Pending CN108160242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711400649.2A CN108160242A (en) 2017-12-22 2017-12-22 A kind of pitch crushes thermofusion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711400649.2A CN108160242A (en) 2017-12-22 2017-12-22 A kind of pitch crushes thermofusion device

Publications (1)

Publication Number Publication Date
CN108160242A true CN108160242A (en) 2018-06-15

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109318396A (en) * 2018-09-25 2019-02-12 巢湖市金辉自控设备有限公司 A kind of recyclable device for tubing waste and old in frequency converter
CN110813458A (en) * 2019-11-20 2020-02-21 宁波尚士华信息科技有限公司 Raw materials hot melting device is used in plastics toy production
CN110813457A (en) * 2019-11-14 2020-02-21 徐州中嘉木业有限公司 Panel fragment reducing mechanism
CN111287046A (en) * 2020-02-28 2020-06-16 沈春波 Municipal administration is with bituminous paving patching machine
CN111957403A (en) * 2020-06-23 2020-11-20 湖州荣耀铝业有限公司 Automatic aluminum bar production line
CN112227146A (en) * 2020-10-22 2021-01-15 齐春雪 Environment-friendly device for automatically controlling discharged asphalt amount by utilizing resistance of asphalt
CN112297290A (en) * 2020-10-10 2021-02-02 湖北科技学院 Treatment method for garbage such as plastic rubber and the like which is not easy to decompose
CN112943151A (en) * 2021-04-21 2021-06-11 哈尔滨艾拓普科技有限公司 Oil field downhole packer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006112126A (en) * 2004-10-15 2006-04-27 Nikko Co Ltd Reclaiming apparatus of asphalt pavement waste material
CN205368957U (en) * 2016-02-17 2016-07-06 陕西正得信热再生公路养护股份有限公司 Detection device is retrieved to pitch
CN106345597A (en) * 2016-10-10 2017-01-25 芜湖瑞德机械科技有限公司 Crushing and screening device suitable for coating raw materials and operation method for crushing and screening device
CN107261945A (en) * 2017-07-14 2017-10-20 徐得强 A kind of new and effective asphalt mixing for green building
CN107365596A (en) * 2017-08-10 2017-11-21 长沙科悦企业管理咨询有限公司 A kind of municipal construction crushes fusion apparatus with pitch
CN208023358U (en) * 2017-12-22 2018-10-30 中宁县华葡农林科技有限公司 A kind of pitch crushing thermofusion device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006112126A (en) * 2004-10-15 2006-04-27 Nikko Co Ltd Reclaiming apparatus of asphalt pavement waste material
CN205368957U (en) * 2016-02-17 2016-07-06 陕西正得信热再生公路养护股份有限公司 Detection device is retrieved to pitch
CN106345597A (en) * 2016-10-10 2017-01-25 芜湖瑞德机械科技有限公司 Crushing and screening device suitable for coating raw materials and operation method for crushing and screening device
CN107261945A (en) * 2017-07-14 2017-10-20 徐得强 A kind of new and effective asphalt mixing for green building
CN107365596A (en) * 2017-08-10 2017-11-21 长沙科悦企业管理咨询有限公司 A kind of municipal construction crushes fusion apparatus with pitch
CN208023358U (en) * 2017-12-22 2018-10-30 中宁县华葡农林科技有限公司 A kind of pitch crushing thermofusion device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109318396A (en) * 2018-09-25 2019-02-12 巢湖市金辉自控设备有限公司 A kind of recyclable device for tubing waste and old in frequency converter
CN109318396B (en) * 2018-09-25 2021-06-29 巢湖市金辉自控设备有限公司 A recovery unit that is used for old and useless tubular product in converter
CN110813457A (en) * 2019-11-14 2020-02-21 徐州中嘉木业有限公司 Panel fragment reducing mechanism
CN110813458A (en) * 2019-11-20 2020-02-21 宁波尚士华信息科技有限公司 Raw materials hot melting device is used in plastics toy production
CN111287046A (en) * 2020-02-28 2020-06-16 沈春波 Municipal administration is with bituminous paving patching machine
CN111957403A (en) * 2020-06-23 2020-11-20 湖州荣耀铝业有限公司 Automatic aluminum bar production line
CN112297290A (en) * 2020-10-10 2021-02-02 湖北科技学院 Treatment method for garbage such as plastic rubber and the like which is not easy to decompose
CN112227146A (en) * 2020-10-22 2021-01-15 齐春雪 Environment-friendly device for automatically controlling discharged asphalt amount by utilizing resistance of asphalt
CN112943151A (en) * 2021-04-21 2021-06-11 哈尔滨艾拓普科技有限公司 Oil field downhole packer

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Application publication date: 20180615

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