CN205247144U - Pitch mix equipment batching control system based on singlechip - Google Patents
Pitch mix equipment batching control system based on singlechip Download PDFInfo
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- CN205247144U CN205247144U CN201521067867.5U CN201521067867U CN205247144U CN 205247144 U CN205247144 U CN 205247144U CN 201521067867 U CN201521067867 U CN 201521067867U CN 205247144 U CN205247144 U CN 205247144U
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- building stones
- chip microcomputer
- powder
- agitator
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Abstract
The utility model relates to a pitch mix equipment batching control system based on singlechip includes the agitator, including the agitator to and a plurality of material batching unit continuous with the agitator, every material batching unit is all including the measurement container to and be arranged in carrying the conveying system of material to the measurement container that corresponds, all install the weighing sensor who is arranged in acquireing the actual quality of measurement container material on every measurement container, weighing sensor passes through the AD converter and connects the singlechip, and conveying system and measurement container are connected to the singlechip, and the singlechip is used for receiving the actual quality of material to carry out the comparison with the setting value of this material, when actual quality equals the setting value, close the conveying system of this material, open the measurement container of this material, make that the material is automatic to be got into in the agitator. The utility model discloses reduced manual operation, intensity of labour reduces, has improved control accuracy moreover, has guaranteed production quality and production efficiency.
Description
[technical field]
The utility model relates to pitch batching field, is specifically related to a kind of SCM Based asphalt mixing apparatus batching control system.
[background technology]
The main performance indications of batch asphalt mixing are grating precision, bitumen content deviation and the mix uniformities of building stones,The quality that affects asphalt mixture mixing quality for this equipment is mainly that the measuring accuracy of each material balance is closed with each bin gate size, cylinderDoor speed and Weighting and Controlling System are relevant. By adopting automatic control technology able to programme, avoid existing in early stage batching control systemWiring complexity, line inspection difficulty, poor reliability, fault rate is high; Use, maintenance and function expand the shortcomings such as inconvenience, and what make system canGreatly improve by property and precision, thereby reduced widely manual operation, workman's labour intensity is reduced, and control accuracy is carriedGao Liao, has ensured the quality of production and production efficiency.
[summary of the invention]
The purpose of this utility model is to overcome problems of the prior art, and a kind of SCM Based asphalt mixing apparatus is providedBatching control system,
In order to achieve the above object, the utility model adopts following technical scheme:
Comprise agitator, and several proportioning materials unit that are connected with agitator; Each proportioning materials unit includes metering to be heldDevice, and for the induction system of the measuring container convey materials to corresponding; On each measuring container, be all provided with for obtaining meterThe LOAD CELLS of amount material in container actual mass, LOAD CELLS connects single-chip microcomputer by A/D converter, and single-chip microcomputer connectsInduction system and measuring container, single-chip microcomputer is used for receiving the actual mass of material, and compares with the setting value of this material, in realityWhen border quality equals to set value, close the induction system of this material, open the measuring container of this material, make material automatically enter stirringIn device.
Further, induction system comprises the electricity being connected for delivery of the filler screw conveyer of powder and with filler screw conveyerMachine; The outlet below of filler screw conveyer arranges powder metering bucket, is provided with for weighing and enters powder metering on powder metering bucketThe powder material weighing sensor of powder quality in bucket, the bottom of powder metering bucket is provided with the powder sluice gate of the first cylinder, powder material weighingSensor is connected with single-chip microcomputer, and single-chip microcomputer connects motor and the first cylinder simultaneously.
Further, induction system comprises the building stones warehouse for delivery of building stones, arrange in the bottom of building stones warehouse several all withThe building stones door of the second cylinder; Building stones door below arranges building stones scale hooper, is provided with for weighing and enters building stones on building stones scale hooperThe building stones LOAD CELLS of building stones quality in scale hooper, the bottom of building stones scale hooper is provided with the building stones sluice gate of the 3rd cylinder; Building stonesLOAD CELLS is connected with single-chip microcomputer, and single-chip microcomputer connects the second cylinder and the 3rd cylinder simultaneously.
Further, induction system comprises the pitch pipeline for delivery of pitch, and pitch device for cleaning pipeline is crossed valve and connected pitch oil inlet pipe;And the outlet of pitch pipeline connects pitch weighing tank, on pitch weighing tank, be provided with for weighing and enter pitch weighing tank medium pitch qualityPitch LOAD CELLS, the bottom of pitch weighing tank is provided with the bottom valve of four-cylinder, bottom valve connect asphalt delivery system; PowderMaterial weighing hopper and building stones scale hooper are all positioned at the top of agitator, and asphalt delivery system is communicated with agitator; Pitch LOAD CELLS and listSheet machine is connected, and single-chip microcomputer connects valve, four-cylinder and asphalt delivery system simultaneously.
Further, valve adopts three-way magnetic valve, and pitch device for cleaning pipeline is crossed three-way magnetic valve and connected pitch oil inlet pipe and pitch oil return pipe.
Further, asphalt delivery system comprises the pitch jet pipe being connected with the bottom of pitch weighing tank, and the outlet of pitch jet pipe is stretchedEnter in agitator, on pitch jet pipe, be provided with pitch jet pump.
Further, the outside of pitch weighing tank is also provided with asphalt thermal insulation cylinder.
Further, LOAD CELLS adopts pulling force sensor, and each measuring container is all by several pulling force sensors in parallelBe connected with fixture, fixture is positioned at measuring container upper end.
Further, A/D converter adopts ADC0809; Single-chip microcomputer adopts AT89C51 single-chip microcomputer; On single-chip microcomputer with 8255AExtended chip.
Further, between LOAD CELLS and A/D converter, be disposed with signal amplification circuit and filter circuit.
Compared with prior art, the utlity model has following useful technique effect:
The utility model obtains respectively the actual mass of each material by LOAD CELLS, and sends single-chip microcomputer to, and single-chip microcomputer is by realityQuality and setting value contrast, and when both are consistent, open the measuring container of corresponding material, make material can enter stirringIn device, to complete batching, reduced widely manual operation, labour intensity reduces, and control accuracy improved, and has ensured lifeYield and quality and production efficiency.
Further, in the utility model, by three-way magnetic valve is set, in connecting pitch oil inlet pipe, can also connect dropBlue or green oil return pipe, while disconnection, can make pitch in pitch oil inlet pipe from pitch oil return pipe between pitch pipeline and pitch oil inlet pipeReflux, avoid the cooling obstruction pitch of pitch oil inlet pipe.
Further, in the utility model, by pitch jet pipe and pitch jet pump are set, make pitch enter and to stir at a relatively high speedMix in device, be more conducive to mix.
Further, in the utility model, by asphalt thermal insulation cylinder is set, effectively prevent that pitch is cooling in blending process, ensure to joinMaterial quality.
[brief description of the drawings]
Fig. 1 is the utility model control system total structure block diagram.
Fig. 2 is apparatus structure schematic diagram of the present utility model.
Wherein, 1-agitator, 2-pitch jet pipe, 3-powder metering bucket, 4-filler screw conveyer, 5-powder material weighing sensor,6-building stones warehouse, 7-building stones scale hooper, 8-building stones LOAD CELLS, 9-three-way magnetic valve, 10-pitch oil return pipe, the oil-feed of 11-pitchPipe, 12-pitch LOAD CELLS, 13-pitch weighing tank, 14-asphalt thermal insulation cylinder, 15-pitch jet pump.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further details.
Referring to Fig. 1 and Fig. 2, the utility model comprises agitator 1, and several proportioning materials unit that are connected with agitator 1;Each proportioning materials unit includes measuring container, and for the induction system of the measuring container convey materials to corresponding; EachLOAD CELLS for obtaining measuring container material actual mass is all installed on measuring container, and LOAD CELLS passes through A/DConverter connects single-chip microcomputer, and single-chip microcomputer connects induction system and measuring container.
In the utility model, material comprises powder, building stones and pitch, corresponding corresponding powder delivery system, building stones induction system and dropBlue or green induction system.
Powder delivery system comprises for delivery of the filler screw conveyer 4 of powder and the electricity that is connected with filler screw conveyer 4Machine; The outlet below of filler screw conveyer 4 arranges powder metering bucket 3, is provided with for weighing and enters powder on powder metering bucket 3The powder material weighing sensor 5 of powder quality in material weighing hopper 3, the bottom of powder metering bucket 3 is provided with the powder bucket of the first cylinderDoor, powder material weighing sensor 5 is connected with single-chip microcomputer, and single-chip microcomputer connects motor and the first cylinder simultaneously.
Building stones induction system comprises the building stones warehouse 6 for delivery of building stones, is provided with the second cylinder in the bottom of building stones warehouse 6Building stones door; Building stones door below arranges building stones scale hooper 7, is provided with for weighing and enters building stones scale hooper on building stones scale hooper 7The building stones LOAD CELLS 8 of building stones quality in 7, the bottom of building stones scale hooper 7 is provided with the building stones sluice gate of the 3rd cylinder; Building stonesLOAD CELLS 8 is connected with single-chip microcomputer, and single-chip microcomputer connects the second cylinder and the 3rd cylinder simultaneously.
Asphalt delivery system comprises the pitch pipeline for delivery of pitch, and pitch device for cleaning pipeline is crossed three-way magnetic valve 9 and connected pitch oil inlet pipe11 and pitch oil return pipe 10; And the outlet of pitch pipeline connects pitch weighing tank 13, on pitch weighing tank 13, be provided with for claimingAmount enters the pitch LOAD CELLS 12 of pitch weighing tank 13 medium pitch quality, and the bottom of pitch weighing tank 13 is provided with the 4thThe bottom valve of cylinder, wherein four-cylinder, on pitch weighing tank 13, and drives bottom valve to move up and down by connecting rod, thereby realizesClose and open pitch weighing tank 13; Bottom valve connects asphalt delivery system, and powder metering bucket 3 and building stones scale hooper 7 are all positioned at and stirMix the top of device 1, asphalt delivery system is communicated with agitator 1, and asphalt delivery system comprises the bottom bottom valve with pitch weighing tank 13The pitch jet pipe 2 being connected, the outlet of pitch jet pipe 2 is stretched in agitator 1, is provided with pitch jet pump 15 on pitch jet pipe 2;Pitch LOAD CELLS 12 is connected with single-chip microcomputer, and single-chip microcomputer is connecting tee magnetic valve 9, four-cylinder and asphalt delivery system simultaneously.The outside of pitch weighing tank 13 is also provided with asphalt thermal insulation cylinder 14.
Powder material weighing sensor 5, building stones LOAD CELLS 8 and pitch LOAD CELLS 12 all can adopt NS type pulling force sensor,And powder metering bucket 3, building stones scale hooper 7 and pitch weighing tank 13 are all by several pulling force sensors in parallel and separatelyFixture be connected. Can select according to the weight of material that will weigh the number of pulling force sensor, as powder metering weight is400kg, powder metering bucket 3 is that 3 pulling force sensors hang weighing; The weight of building stones is 2000Kg, and building stones scale hooper 7 is 4Individual pulling force sensor hangs and weighs; Pitch calculates the weight as 300kg, and pitch weighing tank 13 is that 3 pulling force sensors hang weighing.
In the utility model, signal amplification circuit AD522 is connected with A/D converter input, for by the small simulation of sensorThen amount signal amplifies delivers to A/D module; A/D converter adopts ADC0809, is connected for by analog signals with single-chip microcomputerBeing converted into digital quantity signal is sent in the middle of single-chip microcomputer; Single-chip microcomputer adopts AT89C51 single-chip microcomputer; On single-chip microcomputer, expand with 8255AExhibition chip. Between signal amplification circuit and A/D converter, being also provided with filter circuit, is mainly photoisolator, adopts photoelectricityThe mode of isolation is cut off the impact of interfering signal on blending process, makes measurement result more reliable.
The course of work that the utility model is main and principle:
Single-chip microcomputer receives the actual mass of each measuring container kind material, and compares with the setting value of this material, at actual mass etc.In the time of setting value, judge that this proportioning materials completes, once after having prepared burden, close the induction system of this material, open this materialMeasuring container, carry out discharging, discharging is last procedure of blending process. By discharge process, the material previously having prepared is unloadedEnter in mixer 1 and stir into required finished product material. Before carrying out discharging, need first each batching state to be detected, such asWhether weight reaches setting value requirement. When blowing, first put building stones, when building stones start blowing, load weighted pitch passes through dropBlue or green jet pump 15 pumps, in agitator 1, when building stones and pitch are after all discharging completes, just start powder discharging. Concrete control procedureAs follows:
In powder delivery system, first single-chip microcomputer sets value starter motor according to powder, and filler screw conveyer 4 is in motor effectIn powder metering bucket 3, carry powder down, powder material weighing sensor 5 obtains the actual matter that enters powder in powder metering bucket 3 in real timeAmount, single-chip microcomputer is given in not dig, and single-chip microcomputer is by obtaining the real-time quality of powder and contrasting with setting value, in powder realityQuality is less than when setting value, and single-chip microcomputer only repeats receive real-time quality and contrast, until actual mass is while equaling to set value, singleSheet machine disable motor, makes filler screw conveyer 4 stop carrying powder in powder metering bucket 3, then opens by the first cylinderPowder sluice gate, enters in agitator 1 powder; After conveying completes, close powder sluice gate by the first cylinder; Once obtain upperWhen powder setting value, recycle above-mentioned steps.
In building stones induction system, single-chip microcomputer sets value according to building stones, opens the building stones on building stones warehouse 6 by controlling the second cylinderDoor, building stones enter building stones scale hooper 7 automatically, and the actual mass of building stones LOAD CELLS 8 Real-time Obtaining building stones is also transferred to monolithicMachine, single-chip microcomputer receives building stones actual mass and also contrasts with setting value, until both when equal, close building stones by the second cylinderDoor, stops building stones and carries; Then open building stones sluice gate by the 3rd cylinder, building stones are entered in agitator 1, building stones all enterGo after agitator 1, close building stones sluice gate by the 3rd cylinder.
In the time that three-way magnetic valve 9 is connected pitch pipeline and pitch oil inlet pipe 11, the pitch that pitch oil inlet pipe 11 is sent here injects pitch and claimsIn graduated cylinder 13. Along with the injection of pitch, the magnitude of voltage that pitch LOAD CELLS 12 is exported also increases, and single-chip microcomputer is given in not dig,In the time reaching setting value, single-chip microcomputer sends signal controlling three-way magnetic valve 9 and cuts out pitch pipeline and pitch oil inlet pipe 11, weighsJourney completes; Three-way magnetic valve 9 is communicated with pitch oil inlet pipe 11 with pitch oil return pipe 10 subsequently, makes the drop in pitch oil inlet pipe 11Green grass or young crops is refluxed from pitch oil return pipe 10, avoids the cooling rear viscosity of pitch to increase and stops up pitch oil inlet pipe 11; Finally open pitchThe bottom valve of weighing tank 13, load weighted a pitch is delivered to the interior ejection of agitator 1 by pitch jet pump 15 and playpipe 2.
The utility model utilizes single chip computer AT 89C51 to carry out building stones Weighting and Controlling, pitch Weighting and Controlling, powder weighing control, unloadMaterial bin gate control etc., control thereby realize batching. Building stones and powder are the switchings of controlling bin gate by cylinder and motor; Pitch amountCylinder is controlled adding of pitch and discharged by three-way magnetic valve 9. Whole system is controlled by single-chip microcomputer, and when work, system is adoptedCollection building stones, the analog signal of pitch and powder weight, can drive the motion of the multiple cylinders of multiple Controls, as building stones doorAnd the second cylinder of controlling the open and close of building stones door all can be set to four groups, building stones sluice gate and the unlatching of control building stones sluice gateAll can be set to two groups with the 3rd cylinder of closing, the first cylinder and powder sluice gate are one group, and bottom valve and four-cylinder are one group,To complete the metering of many group building stones and pitch and powder. The weighing of building stones adopts building stones LOAD CELLS 8 parallel connections of four 1t to makeWith. The building stones quality of building stones scale hooper 7 changes quality into voltage signal by building stones LOAD CELLS 8, and voltage signal is through electricityPress amplifying circuit to amplify and filter circuit filtering, then convert analog voltage signal to data signal through A/D converter, through listSheet machine sends to control end, as the relay for control cylinder. In the time reaching quality requirement, the building stones sluice gate of building stones scale hooper 7Open building stones are put into agitator 1 at twice. The weighing process of asphalt material and powder and the weighing process of building stones are similar. RelayDriving be to realize by the I/O mouth of interface microcontroller extended chip 8255A.
The utility model is reasonable in design, reliable, has improved the proportioning accuracy of asphalt mixing apparatus feed proportioning system, and to external worldInterference has certain opposing.
In weighing process, in order to ensure to greatest extent the precision of batching, in the time of batching, adopt the method for surveying drop, automatically calculateThe actual dosage of material, thus realize the dynamic control to material proportion. Surveying drop is in the time that material falls into measuring container, claimsRetransmit the weight that sensor starts to experience material, if stop feed in the time that its indicated value arrives setting value, must have oneDivide the material that is in space, whereabouts also will to continue to fall into measuring container, thereby cause " super title ", for fear of " super title " occurs,Just must before the required mass value of reality, just stop feed, all enter after LOAD CELLS material to skyborne " flying material "Weight just equal setting value; And in the time that material falls into scale hooper with certain speed conventionally with larger impact, thisTime the scale weight experienced be not only the weight of building stones, and also have dynamic shock loading. For this reason in the time of design control procedure, canWith in the time that the indicated value of every kind of material arrives setting value, storehouse, pass time delay a period of time are measured the weight of scale hooper again, thereby calculateDifference, for the normative reference of batching next time, such as the required mass value of reality deducts this drop value, is only establishing that single-chip microcomputer obtainsDefinite value. In the time reading A/D conversion value, adopt in addition filter, also reduced to a certain extent the trueness error of batching. In additionIn the time reading A/D conversion value, adopt filter, also reduced to a certain extent the trueness error of batching.
Because the blending process of each material is simultaneously and carries out continuously, consider the execution speed of single-chip microcomputer, can be by circulationContrast raw material actual mass and setting value, make single-chip microcomputer inquire about rapidly the state of batching, thereby guarantee that feed proportioning system fast and effecientlyFinish the work. Utilize single-chip microcomputer to realize the automatic dispensing to three kinds of material (building stones, powder, asphalt material) in blending process, andThe control of proportioning accuracy. The utility model is avoided the wiring complexity in early stage batching control system, line inspection difficulty, poor reliability, thereforeBarrier rate is high, and use, maintenance and function expand the shortcomings such as inconvenience; Reliability and the precision of system are improved greatly, thereby subtract widelyLack manual operation, workman's labour intensity is reduced, and control accuracy improved, and ensured the quality of production and production efficiency.
Claims (10)
1. a SCM Based asphalt mixing apparatus batching control system, is characterized in that, comprises agitator (1), andThe proportioning materials unit that several are connected with agitator (1); Each proportioning materials unit includes measuring container, and for toThe induction system of convey materials in corresponding measuring container; On each measuring container, be all provided with for obtaining measuring container material realThe LOAD CELLS of border quality, LOAD CELLS connects single-chip microcomputer by A/D converter, and single-chip microcomputer connects induction system and meteringContainer, single-chip microcomputer is used for receiving the actual mass of material, and compares with the setting value of this material, equals to set at actual massWhen value, close the induction system of this material, open the measuring container of this material, material is entered in agitator (1) automatically.
2. the SCM Based asphalt mixing apparatus batching control system of one according to claim 1, is characterized in that,Induction system comprises the filler screw conveyer (4) for delivery of powder and the motor being connected with filler screw conveyer (4);The outlet below of filler screw conveyer (4) arranges powder metering bucket (3), on powder metering bucket (3), be provided with for weigh intoThe powder material weighing sensor (5) that enters powder quality in powder metering bucket (3), the bottom of powder metering bucket (3) is provided with firstThe powder sluice gate of cylinder, powder material weighing sensor (5) is connected with single-chip microcomputer, and single-chip microcomputer connects motor and the first cylinder simultaneously.
3. the SCM Based asphalt mixing apparatus batching control system of one according to claim 1, is characterized in that,Induction system comprises the building stones warehouse (6) for delivery of building stones, several is set all with second in the bottom of building stones warehouse (6)The building stones door of cylinder; Building stones door below arranges building stones scale hooper (7), on building stones scale hooper (7), be provided with for weigh intoThe building stones LOAD CELLS (8) that enters building stones quality in building stones scale hooper (7), the bottom of building stones scale hooper (7) is provided with the 3rdThe building stones sluice gate of cylinder; Building stones LOAD CELLS (8) is connected with single-chip microcomputer, and single-chip microcomputer connects the second cylinder and the 3rd cylinder simultaneously.
4. the SCM Based asphalt mixing apparatus batching control system of one according to claim 1, is characterized in that,Induction system comprises the pitch pipeline for delivery of pitch, and pitch device for cleaning pipeline is crossed valve and connected pitch oil inlet pipe (11); And pitch pipeThe outlet in road connects pitch weighing tank (13), is provided with for weighing and enters pitch weighing tank (13) on pitch weighing tank (13)The pitch LOAD CELLS (12) of medium pitch quality, the bottom of pitch weighing tank (13) is provided with the bottom valve of four-cylinder, the endValve connects asphalt delivery system; Powder metering bucket (3) and building stones scale hooper (7) are all positioned at the top of agitator (1), pitchInduction system is communicated with agitator (1); Pitch LOAD CELLS (12) is connected with single-chip microcomputer, and single-chip microcomputer connects valve, the 4th simultaneouslyCylinder and asphalt delivery system.
5. the SCM Based asphalt mixing apparatus batching control system of one according to claim 4, is characterized in that,Valve adopts three-way magnetic valve (9), and pitch device for cleaning pipeline is crossed three-way magnetic valve (9) and connected pitch oil inlet pipe (11) and pitch oil returnPipe (10).
6. the SCM Based asphalt mixing apparatus batching control system of one according to claim 4, is characterized in that,Asphalt delivery system comprises the pitch jet pipe (2) being connected with the bottom of pitch weighing tank (13), the outlet of pitch jet pipe (2)Stretch in agitator (1), on pitch jet pipe (2), be provided with pitch jet pump (15).
7. the SCM Based asphalt mixing apparatus batching control system of one according to claim 4, is characterized in that,The outside of pitch weighing tank (13) is also provided with asphalt thermal insulation cylinder (14).
8. the SCM Based asphalt mixing apparatus batching control system of one according to claim 1, is characterized in that,LOAD CELLS adopts pulling force sensor, and each measuring container is all by several pulling force sensors in parallel and fixture phaseConnect, fixture is positioned at measuring container upper end.
9. the SCM Based asphalt mixing apparatus batching control system of one according to claim 1, is characterized in that,A/D converter adopts ADC0809; Single-chip microcomputer adopts AT89C51 single-chip microcomputer; On single-chip microcomputer with 8255A extended chip.
10. the SCM Based asphalt mixing apparatus batching control system of one according to claim 1, is characterized in that,Between LOAD CELLS and A/D converter, be disposed with signal amplification circuit and filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067867.5U CN205247144U (en) | 2015-12-19 | 2015-12-19 | Pitch mix equipment batching control system based on singlechip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067867.5U CN205247144U (en) | 2015-12-19 | 2015-12-19 | Pitch mix equipment batching control system based on singlechip |
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| Publication Number | Publication Date |
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| CN205247144U true CN205247144U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521067867.5U Expired - Fee Related CN205247144U (en) | 2015-12-19 | 2015-12-19 | Pitch mix equipment batching control system based on singlechip |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103715A1 (en) * | 2016-12-09 | 2018-06-14 | 成都斯力康科技股份有限公司 | Automatic control system for silicon slag separation |
| CN110846978A (en) * | 2019-11-16 | 2020-02-28 | 德州广通筑路设备有限公司 | Composite modified asphalt production device |
| CN112140546A (en) * | 2020-08-27 | 2020-12-29 | 湖南华曙高科技有限责任公司 | Powder preparation device and method for selective laser sintering equipment |
| CN117055455A (en) * | 2023-08-02 | 2023-11-14 | 山东春光磁电科技有限公司 | Automatic batching control system for soft magnetic ferrite |
-
2015
- 2015-12-19 CN CN201521067867.5U patent/CN205247144U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103715A1 (en) * | 2016-12-09 | 2018-06-14 | 成都斯力康科技股份有限公司 | Automatic control system for silicon slag separation |
| CN110846978A (en) * | 2019-11-16 | 2020-02-28 | 德州广通筑路设备有限公司 | Composite modified asphalt production device |
| CN112140546A (en) * | 2020-08-27 | 2020-12-29 | 湖南华曙高科技有限责任公司 | Powder preparation device and method for selective laser sintering equipment |
| CN117055455A (en) * | 2023-08-02 | 2023-11-14 | 山东春光磁电科技有限公司 | Automatic batching control system for soft magnetic ferrite |
| CN117055455B (en) * | 2023-08-02 | 2024-05-24 | 山东春光磁电科技有限公司 | Automatic batching control system for soft magnetic ferrite |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |