CN102515919B - Fully sealed automatic lifting device - Google Patents
Fully sealed automatic lifting device Download PDFInfo
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- CN102515919B CN102515919B CN 201110426504 CN201110426504A CN102515919B CN 102515919 B CN102515919 B CN 102515919B CN 201110426504 CN201110426504 CN 201110426504 CN 201110426504 A CN201110426504 A CN 201110426504A CN 102515919 B CN102515919 B CN 102515919B
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Abstract
A fully sealed automatic lifting device is disclosed, which is an improvement for the structure of a lifting and feeding machine in high-tower production equipment for a compound fertilizer. The fully-sealed automatic lifting device comprises a storage hopper 1, a lifting hanging hopper 2, a traction device 3 and a revolution controller 31 thereof, a hanging cable 32, a hanging well 33, a discharge bin 4, a programmable controller 8, a working condition display device 9 and a frequency converter 10, wherein an automatic charging device 5 and an automatic discharging device 6 are composed of abracket, an oil pump as well as coaxial inner barrel and outer barrel respectively; the outer barrel is fixed on the bracket and provided with a guide groove on the barrel wall along an axis; an upper limit switch and a lower limit switch are installed on the guide groove; a guide block capable of stretching out of the guide groove is installed on the outer wall of the inner barrel; collision blocks corresponding to the upper limit switch and the lower limit switch are installed on the guide block; and the oil pump drives the inner barrel to move downwards during charging or discharging, and after the process is finished, the oil pump drives the inner barrel to retreat. The fully-sealed automatic lifting device has the advantages of enabling lifter to realize fully-sealed automatic operation during charging, lifting and discharging processes, solving the problems of the high dust amount of raw material and serious pollution, reducing investment and facilitating operation. The fully-sealed automatic lifting device can be used for production equipment in the industries of chemical engineering, food and the like using dusty and granular raw materials.
Description
Technical field
The present invention relates to a kind of lifting feeder for the high tower compound fertilizer production facilities, relate in particular to a kind of hermetically sealed automatic lifting materials device.
Background technology
At present, domestic composite fertilizer high-tower granulation manufacturing line has over one hundred cover, and the major part that promotes powder or feed particulate material adopts bucket elevator or pit car type gig.Characteristics due to composite fertilizer's production, above-mentioned two kinds of gigs are difficult in raw material charging, lifting, discharge process realize that sealing is carried and equipment moves automatically, cause that in production, dust is large, environmental pollution is serious, very easily bring serious health hazard to the site operation personnel.
Summary of the invention
The object of the invention is to overcome in prior art gig and does not seal at charging, lifting, discharging link raw material and carry and equipment needs manually-operated defective, a kind of hermetically sealed automatic lifting materials device is provided, dust is large in order to solve in prior art, with serious pollution problem, realize hermetically sealed in charging, lifting, discharge process of raw material, reduce wastage of material, save cost.
The present invention is achieved by following technical proposals.this hermetically sealed automatic lifting materials device, comprise storage bin hopper 1, promote suspension bucket 2, draw gear 3 and revolution controller 31, hanger rope 32, hang well 33, discharge bin 4, Programmable Logic Controller 8, working condition display device 9, frequency converter 10, at storage bin hopper 1 inwall, stuff level switch 11, lower stuff level switch 12 are housed, outlet valve 13 is equipped with in its outlet, promote suspension bucket 2 imports and admission valve 21 and outlet valve 22 are equipped with respectively in outlet, promote suspension bucket 2 and are connected connection with draw gear by hanger rope 32, auto feeding device 5 comprises bottom bracket 53, bottom oil pump 54 and coaxial urceolus 51 and inner core 52, urceolus 51 is fixed on bottom bracket 53 and along axle and has guide groove 55 at barrel, upper limit position switch 551 and lower position switch 552 are housed on guide groove 55, the guide block 521 of extended guide groove 55 is housed on inner core 52 outer walls, collision block with upper limit position switch 551, lower position switch 552 correspondences is housed on guide block 521, urceolus 51 is connected outlet and is connected with storage bin hopper, when filling with substance bottom oil pump 54 drives inner cores 52 and moves down and be connected suspension bucket 2 imports and connect, automatic discharge unit 6 comprises upper bracket 63, top oil pump 64 and coaxial outer sleeve 61 and inner sleeve 62, outer sleeve 61 is fixed on upper bracket 63 and along axle and has inner sleeve guide groove 65 at barrel, upper stroke switch 651 and lower stroke switch 652 are housed on inner sleeve guide groove 65, the inner sleeve guide block 621 of extended inner sleeve guide groove 65 is housed on inner sleeve 62 outer walls, be equipped with on inner sleeve guide block 621 and upper stroke switch 651, the collision block of lower stroke switch 652 correspondences, during discharging outer sleeve 61 be connected suspension bucket 2 outlet and connect, top oil pump 64 can drive the inner sleeve 62 lower mobile inlet point that stretches into discharge bin 4 vertically.
Be arranged on the collision block on auto feeding device guide groove 55 and automatic discharge unit inner sleeve guide groove 65, in order to trigger upper stroke switch or the lower position switch on upper limit position switch on guide groove 55 or lower position switch, inner sleeve guide groove 65, thereby send signal to Programmable Logic Controller 8, control scope and location that urceolus 52 and inner sleeve 62 move.
Lifting suspension bucket outlet valve 22 in hermetically sealed automatic lifting materials device is split type electric butterfly valve, comprise and be arranged on the valve body that promotes in the suspension bucket outlet, be arranged on the valve electric actuator 7 that hangs well 33 tops and open valve-stem guide 71, valve body has fluting along axle on valve rod, open valve-stem guide 71 for tabular, its thickness is less than the width of valve rod fluting, open valve-stem guide 71 upper ends and be fixed on valve electric actuator 7, its lower end thickness is less than upper end thickness.
The electric actuator 7 of the lifting suspension bucket outlet valve 22 in hermetically sealed automatic lifting materials device is arranged on the top of hanging well 33.Generally it is arranged on outlet valve 22 in the prior art, can follows lifting suspension bucket 2 and move up and down, easily cause fault to cause valve to open.Opening valve-stem guide 71 can be made into tabular, its upper end is fixed on electric actuator 7, open valve-stem guide 71 for tabular, its thickness is less than the width of valve rod fluting, and what be introduced into valve rod fluting opens valve-stem guide 71, its lower end thickness is convenient to valve electric actuator to the location of valve and finds accurately less than upper end thickness, has improved accuracy rate.
Storage bin hopper 1 in hermetically sealed automatic lifting materials device, lifting suspension bucket 2 can be set to one or more, storage bin hopper outlet valve 13, promoting suspension bucket admission valve 22 can be for one or more, and storage bin hopper outlet valve 13 and lifting suspension bucket admission valve 22 quantity, position are corresponding.
There is outside enlarging outer sleeve 61 upper ends of the automatic discharge unit 6 in hermetically sealed automatic lifting materials device, and greater than the outlet that promotes suspension bucket 2, and seal ring is housed in enlarging.Technique scheme can guarantee when discharging, promotes the urceolus that the outlet of suspension bucket 2 is connected with automatic discharge unit and realizes hermetically sealed connection.
Storage bin hopper 1 volume in hermetically sealed automatic lifting materials device is less than the volume that promotes suspension bucket 2.After making storage bin hopper 1 unsnatch material, the lower stuff level switch 12 that is arranged on storage bin hopper 1 can send signal to control 8 able to programme, controls subsequently storage bin hopper outlet valve 13 and closes, starts bottom oil pump 54, drives inner core 52 and returns.More specifically in hermetically sealed automatic lifting materials device storage bin hopper 1 to make volume be 4.1m
3Steel vessel, it is the electric butterfly valve of 400mm that the outlet valve 13 of installing on it adopts diameters.
The flapper valve of lifting suspension bucket admission valve 21 in hermetically sealed automatic lifting materials device for utilizing gravity rod to drive is equipped with the lever that supports gravity rod hanging well 33 bottoms.When filling with substance utilizes Action of Gravity Field to open admission valve 21; In the process that promotes suspension bucket 2 liftings, discharging and decline, gravity rod falls and drives and keep admission valve 21 to close, and stops the raw material dust to be emerged, and uses simultaneously mechanical flapper valve also to reduce the trouble point.
Hermetically sealed automatic lifting materials device, elder generation to storage bin hopper 1 feeding, when raw material reaches the upper material level of upper stuff level switch 11 correspondences, stops outside charging by external device.Promoting suspension buckets 2 by 23 pairs of position-sensing switches of charging carries out after the charging position location finds accurately, send the charging signal for Programmable Logic Controller 8, the lower end of the inner core 52 that 2 imports of control lifting suspension bucket are connected with auto feeding device connects, and unlatching storage bin hopper outlet valve 13 is feeded to promoting suspension bucket 2 with lifting suspension bucket admission valve 21.After raw material in storage bin hopper 1 discharges, its lower stuff level switch 12 sends signal for control 8 able to programme, close storage bin hopper outlet valve 13, start bottom oil pump 54 and drive inner cores 52 and return, draw gear 3 scrolling hanger ropes 32 drive and promote suspension buckets 2 and rise, and promote simultaneously suspension bucket admission valve 21 and close; When discharging, promoting suspension buckets 2 by 24 pairs of discharging position-sensing switches carries out after the discharge position location finds accurately, send discharging signal for Programmable Logic Controller 8, control the outlet of lifting suspension bucket 2 and the outer sleeve 61 upper ends docking of automatic discharge unit 6, the inner sleeve 62 that top oil pump 64 drives automatic discharge unit 6 stretches into the inlet point of discharge bin 4, opens lifting suspension bucket outlet valve 22 and carries out discharging; Discharging finishes, and promotes suspension bucket outlet valve 22 and closes, and the inner sleeve 62 that top oil pump 64 drives automatic discharge unit 6 is return, and promotes suspension bucket 2 and descends.
Advantage of the present invention is:
1, realize hermetically sealed in charging, lifting, discharge process of raw material, solved fully that dust is large, with serious pollution problem, reduced wastage of material, saved cost.
2, fully automatic operation, simple in structure, improved life-span and the Occupation coefficient of equipment.
Description of drawings
Fig. 1 is the structural representation of the hermetically sealed automatic lifting materials device of the present invention embodiment; Illustrate simultaneously and promote three location statuss of suspension bucket in when filling with substance, the way of rising, during discharging, the inner core in auto feeding device, automatic discharge unit adopts transparent view to illustrate.
Fig. 2 is the auto feeding device part perspective view in Fig. 1.
Fig. 3 is control principle drawing in the hermetically sealed automatic lifting materials device of the present invention embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.
Fig. 1 is the structural representation of the hermetically sealed automatic lifting materials device of the present invention embodiment, and Fig. 2 is the auto feeding device part perspective view in Fig. 1, and Fig. 3 is control principle drawing in the hermetically sealed automatic lifting materials device of the present invention embodiment.As Fig. 1, Fig. 2 and shown in Figure 3, the hermetically sealed automatic lifting materials device of the present embodiment comprises storage bin hopper 1, promotes suspension bucket 2, draw gear 3 and revolution controller 31, hanger rope 32, hangs well 33, discharge bin 4, Programmable Logic Controller 8, working condition display device 9, frequency converter 10.at the inwall of storage bin hopper 1, stuff level switch 11, lower stuff level switch 12 are housed, outlet valve 13 is equipped with in its outlet, promote suspension bucket 2 imports admission valve 21 is housed, outlet valve 22 is equipped with in its outlet, promotes suspension bucket 2 and is connected connection with draw gear by hanger rope 32, auto feeding device 5 comprises bottom bracket 53, bottom oil pump 54 and coaxial urceolus 51 and inner core 52, urceolus 51 is fixed on bottom bracket 53 and along axle and has guide groove 55 at barrel, upper limit position switch 551 and lower position switch 552 are housed on guide groove 55, the guide block 521 of extended guide groove 55 is housed on inner core 52 outer walls, collision block with upper limit position switch 551, lower position switch 552 correspondences is housed on guide block 521, urceolus 51 is connected outlet and is connected with storage bin hopper, when filling with substance bottom oil pump 54 drives inner cores 52 and moves down and promote suspension bucket 2 imports docking, automatic discharge unit 6 comprises upper bracket 63, top oil pump 64 and coaxial outer sleeve 61 and inner sleeve 62, outer sleeve 61 is fixed on upper bracket 63 and along axle and has inner sleeve guide groove 65 at barrel, upper stroke switch 651 and lower stroke switch 652 are housed on inner sleeve guide groove 65, the inner sleeve guide block 621 of extended inner sleeve guide groove 65 is housed on inner sleeve 62 outer walls, be equipped with on inner sleeve guide block 621 and upper stroke switch 651, the collision block of lower stroke switch 652 correspondences, outer sleeve 61 and the 2 outlet docking of lifting suspension bucket during discharging, top oil pump 64 can drive inner sleeve 62 and move into down vertically the inlet point of discharge bin 4.Be arranged on the collision block on auto feeding device guide groove 55 and automatic discharge unit inner sleeve guide groove 65, in order to trigger upper stroke switch or the lower position switch on upper limit position switch on guide groove 55 or lower position switch, inner sleeve guide groove 65, thereby send signal to Programmable Logic Controller 8, control scope and location that urceolus 52 and inner sleeve 62 move.
particularly, the upper stuff level switch 11 of storage bin hopper 1 and lower stuff level switch 12, the upper limit position switch 551 of auto feeding device 5 and lower position switch 552, the upper stroke switch 651 of automatic discharge unit 6 and lower stroke switch 652, draw gear revolution controller 33, the input end of frequency converter 10 connects arbitrary input/output interface of Programmable Logic Controller 8, arbitrary input/output interface of Programmable Logic Controller 8 also connects charging position-sensing switch 23 and the discharging position-sensing switch 24 that promotes suspension bucket 2, bottom oil pump controller 541 and top oil pump controller 641, its communication interface connects working condition display device 9, the frequency output terminal of frequency converter 10 connects the electrical motor in draw gear 3.In draw gear 3 with electrical motor, on bottom oil pump 54 with bottom oil pump controller 541, on top oil pump 64 with top oil pump controller 641.
Further, to make volume be 4.1m to storage bin hopper 1
3Steel vessel, it is the electric butterfly valve of 400mm that its outlet at bottom valve 13 adopts diameters, its valve electric actuator is M00LeL-50 type.When the interior raw material of storage bin hopper 1 reached upper material level, the upper stuff level switch 11 of single-capacitor type CM23-150 type outputed signal to 100 Programmable Logic Controllers 8 of Siemens, stops the external device charging.Promote suspension bucket 2 and drop to the bottom of hanging well 33, by charging position-sensing switch 23, its charging position is located and find accurately, and send signal to Programmable Logic Controller 8, send control signal by Programmable Logic Controller 8, starting oil cylinder is the bottom oil pump 54 of HOB-63/600 type, when oil pressure reaches 2.5MPa, bottom oil pump 54 drives inner core 52 and stretches out downwards, after the import that is connected suspension bucket 2 connects, collision block on inner core 52 triggers the lower position switch 552 of LA500/5A type, Programmable Logic Controller 8 sends control signal, opens storage bin hopper outlet valve 13, to promoting suspension bucket 2 chargings.Raw material in storage bin hopper 1 discharges, its lower stuff level switch 12 provides signal to Programmable Logic Controller 8, close storage bin hopper outlet valve 13, start subsequently bottom oil pump 54, driving inner core 52 returns, when the collision block on inner core 52 triggers upper limit position switch 551, send signal and stop oil pump 54 to Programmable Logic Controller 8.
Traction rises device 3 and is the winch of 40 m/mins of speed, is promoting suspension bucket 2 charging end, and beginning scrolling hanger rope 32 drives and promotes suspension bucket 2 along hanging well 33 risings.Because the mechanical gravity effect of gravity rod, the rear lifting suspension bucket 2 import flapper valves 21 that begin to rise cut out, and stop the raw material dust to be emerged.Promote suspension bucket 2 apart from discharging position-sensing switch 24 2 to 3 meters the time, the revolution controller 31 of Programmable Logic Controller 8 control draw geares, frequency converter 10 are with electrical motor reduction of speed to 5 meter per second in draw gear 3, be beneficial to out valve-stem guide 71 capturing positions, opening valve-stem guide 71 makes tabular, the thickness of its lower end is less than the thickness of upper end, so that the valve rod fluting of outlet valve 22 is located and found accurately.Rise to discharging position-sensing switch 24 positions when promoting suspension bucket 2, Programmable Logic Controller 8 sends control signal, control draw gear 3 stall brakes, control subsequently top oil pump controller 641 and start top oil pump 64, drive inner sleeve 62 and stretch into discharge bin 4 inlet point soft cloth bag cylinders, outlet valve 22 docking of outer sleeve 61 and lifting suspension bucket 2, dock completely, promote electric actuator 7 actions of suspension bucket outlet valve 22, drive and open valve-stem guide 71 and rotate, open and promote suspension bucket outlet valve 22, raw material enters discharge bin 4.Discharging finishes, and promotes suspension bucket outlet valve 22 and at first closes, and then oil pump 64 drive inner sleeves 62 in top are return.Return complete after, promote suspension bucket 2 and descend, for circulation next time is prepared.
Further, storage bin hopper 1, promoting suspension bucket 2 can be for one or more, and described storage bin hopper outlet valve 13, promoting suspension bucket admission valve 22 can be for one or more, and storage bin hopper outlet valve 13 and lifting suspension bucket admission valve 22 quantity, position are corresponding.
The rubber ring of sealing use all is equipped with in outer sleeve 61 upper ends of the lower end of the inner core 52 of auto feeding device 5, automatic discharge unit 6, the inlet point of discharge bin 4 is equipped with soft cloth bag cylinder, has guaranteed that auto feeding device and automatic discharge unit are in the sealing of charging, discharge process.
The present invention can be also the production facilities of the industries such as dust, granular chemical industry, food for raw material, as the full automatic lifting feeder of sealing, solves dust pollution, reduces waste, the saving cost of raw material, realizes the automatic and safe operation of equipment.
Claims (6)
1. hermetically sealed automatic lifting materials device, comprise storage bin hopper (1), promote suspension bucket (2), draw gear (3) and revolution controller (31), hanger rope (32), hang well (33), discharge bin (4), Programmable Logic Controller (8), working condition display device (9), frequency converter (10), it is characterized in that, described storage bin hopper (1) inwall is equipped with stuff level switch (11), lower stuff level switch (12), and outlet valve (13) is equipped with in its outlet, admission valve (21) and outlet valve (22) are equipped with respectively in described lifting suspension bucket (2) import and outlet, promote suspension bucket (2) and are connected 3 by hanger rope (32) with draw gear) connect, the urceolus (51) of auto feeding device (5) is fixed on bottom bracket (53) upward and has guide groove (55) along axle at barrel, upper limit position switch (551) and lower position switch (552) are housed on guide groove (55), the guide block (521) of extended guide groove (55) is housed at inner core (52) outer wall, be equipped with on guide block (521) and upper limit position switch (551), the collision block that lower position switch (552) is corresponding, urceolus (51) is connected 1 with storage bin hopper) the outlet connection, when filling with substance bottom oil pump (54) drives inner core (52) and moves down and be connected suspension bucket (2) import connection, the outer sleeve (61) of automatic discharge unit (6) is fixed on upper bracket (63) upward and has inner sleeve guide groove (65) along axle at barrel, upper stroke switch (651) and lower stroke switch (652) are housed on inner sleeve guide groove (65), the inner sleeve guide block (621) of extended inner sleeve guide groove (65) is housed at inner sleeve (62) outer wall, be equipped with on inner sleeve guide block (621) and upper stroke switch (651), the collision block that lower stroke switch (652) is corresponding, outer sleeve during discharging (61) be connected suspension bucket (2) outlet and connect, top oil pump (64) can drive inner sleeve (62) and move into down vertically the inlet point of discharge bin (4), there is enlarging outer sleeve (61) upper end of automatic discharge unit (6), and greater than the outlet that promotes suspension bucket (2), seal ring all is equipped with in the upper end of the lower end of the inner core (52) of auto feeding device (5), the outer sleeve (61) of automatic discharge unit (6).
2. hermetically sealed automatic lifting materials device according to claim 1, it is characterized in that, the upper stuff level switch (11) of described storage bin hopper (1) and lower stuff level switch (12), the upper limit position switch (551) of auto feeding device (5) and lower position switch (552), the upper stroke switch (651) of automatic discharge unit (6) and lower stroke switch (652), draw gear revolution controller (31), the input end of frequency converter (10) connects arbitrary input/output interface of Programmable Logic Controller (8), the input/output interface of Programmable Logic Controller (8) also connects bottom oil pump controller (541) and top oil pump controller (641), promote charging position-sensing switch (23) and the discharging position-sensing switch (24) of suspension bucket (2), its communication interface connects working condition display device (9), described frequency converter (10) frequency output terminal connects the electrical motor in draw gear (3).
3. hermetically sealed automatic lifting materials device according to claim 1 and 2, it is characterized in that, described lifting suspension bucket outlet valve (22) is split type electric butterfly valve, comprise the valve body that is arranged in automatic discharge unit (6) outlet, be arranged on the valve electric actuator (7) that hangs well (33) top and open valve-stem guide (71), valve body has fluting along axle on valve rod, open valve-stem guide (71) for tabular, thickness is less than the groove width of valve rod, its upper end is fixed on valve electric actuator (7), opens the lower end thickness of valve-stem guide (71) less than upper end thickness.
4. hermetically sealed automatic lifting materials device according to claim 1 and 2, is characterized in that the volume of described storage bin hopper (1) is less than the volume that promotes suspension bucket (2).
5. hermetically sealed automatic lifting materials device according to claim 1 and 2, is characterized in that, the flapper valve of described lifting suspension bucket admission valve (21) for utilizing gravity rod to drive is equipped with the pin that supports gravity rod in the bottom of hanging well (33).
6. hermetically sealed automatic lifting materials device according to claim 1 and 2, is characterized in that, described discharge bin (4) inlet point is equipped with soft cloth bag cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110426504 CN102515919B (en) | 2011-12-19 | 2011-12-19 | Fully sealed automatic lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110426504 CN102515919B (en) | 2011-12-19 | 2011-12-19 | Fully sealed automatic lifting device |
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| Publication Number | Publication Date |
|---|---|
| CN102515919A CN102515919A (en) | 2012-06-27 |
| CN102515919B true CN102515919B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110426504 Active CN102515919B (en) | 2011-12-19 | 2011-12-19 | Fully sealed automatic lifting device |
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| CN (1) | CN102515919B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092656A (en) * | 2016-06-24 | 2016-11-09 | 江苏永钢集团有限公司 | A kind of semi-automatic lifting formula sampler |
| CN110697624B (en) * | 2019-09-27 | 2020-11-24 | 萧县威辰机电工程设备有限公司 | Automatic feeding hoister for processing small parts |
| CN111807264A (en) * | 2020-07-20 | 2020-10-23 | 安徽强坤机械有限公司 | Lifting equipment for high-temperature materials and processing method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316382Y (en) * | 1997-06-02 | 1999-04-28 | 李海祥 | Double safety double basket elevator |
| CN2873772Y (en) * | 2005-04-20 | 2007-02-28 | 张行赫 | Full closed full automatic powder lime emulfying complete set equipment |
| CN201348267Y (en) * | 2008-12-15 | 2009-11-18 | 中天环保产业(集团)有限公司 | Polymorphous material combined feeding system |
| CN201746088U (en) * | 2010-01-29 | 2011-02-16 | 和原生态控股股份有限公司 | Fertilizer lifting machine |
| CN202369518U (en) * | 2011-12-19 | 2012-08-08 | 青岛中天化工科技有限公司 | Fully-sealed automatic lifting device |
| CN202465196U (en) * | 2012-02-21 | 2012-10-03 | 胡相兰 | Tunnel stacker crane |
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Effective date of registration: 20210819 Address after: No. 55, Haizhou Road, Pingdu Economic Development Zone, Qingdao, Shandong 266705 Patentee after: Qingdao founder Equipment Technology Co.,Ltd. Address before: 266731 No. 577, Jiaoping Road, Pingdu City, Qingdao City, Shandong Province Patentee before: QINGDAO ZHONGTIAN CHEMICAL TECHNOLOGY Co.,Ltd. |
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