CN202848131U - Powdery material automatic bag-breaking discharge device for mine filling process - Google Patents
Powdery material automatic bag-breaking discharge device for mine filling process Download PDFInfo
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- CN202848131U CN202848131U CN 201220554559 CN201220554559U CN202848131U CN 202848131 U CN202848131 U CN 202848131U CN 201220554559 CN201220554559 CN 201220554559 CN 201220554559 U CN201220554559 U CN 201220554559U CN 202848131 U CN202848131 U CN 202848131U
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- vibrating grizzly
- breaking
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Abstract
The utility model relates to a powdery material automatic bag-breaking discharge device for mine filling process. The powdery material automatic bag-breaking discharge device for the mine filling process is characterized in that a bag-breaking hopper (4) is fixed inside a dustproof enclosed hood (3) through a bag-breaking hopper support (6), the bag-breaking hopper (4) is positioned under the discharging end of a first belt conveyer (1), a vibrating screen (12) is arranged below the bag-breaking hopper (4) and a second belt conveyer (14) is arranged under the vibrating screen (12). A group of strip-type cutter holes are symmetrically arranged on rectangular side plates of the left and right sides of the bag-breaking hopper (4), cutter shafts are horizontally arranged on the outsides of the cutter holes, a bag-cutting cutter (5) is arranged in each cutter hole, the bag-cutting cutters (5) are sequentially arranged on the cutter shafts, the distance between each cutter shaft and the lower hopper mouth of the bag-breaking hopper (4) is 200-400 mm, the vertical distance between a shaft axis of each cutter shaft and the inner sides of the rectangular side plates is 30-50 mm lesser than the radius of the bag-breaking hopper (4). The powdery material automatic bag-breaking discharge device for the mine filling process has the advantages of being small in size, good in dust removal effect, high in efficiency, small in labor intensity, convenient to operate and capable of effectively controlling dust dispersion in operating environment.
Description
Technical field
The utility model belongs to the device for discharging technical field.Be specifically related to a kind of granular material automatic bag-breaking device for discharging for mine filling technique.
Background technology
Employed concrete pump is the manual cleaning in traditional colliery fill process, and not only work capacity is large, and the workman can produce a large amount of dust during batch turning on the belt transporter, causes the dust concentration severe overweight, is threatening that safety in production and workman's is healthy.
How to solve the problem that dust concentration exceeds standard in the underground filling technique process, researcher and engineering staff have carried out a large amount of theory and practice research both at home and abroad, take every dust suppression to personnel are concentrated with the high work place of dust concentration, worked out various dust exhaustors and dusting equipment.But because the particularity of underground work condition, these dust exhaustors and dusting equipment also are not suitable for the Underground well operation.
Therefore, the research emphasis of home and abroad colliery dust pelletizing system nearly all is that the dust that has produced is taked dust suppression, and fundamentally do not control the generation of dust, namely fundamentally do not control the diffusion of dust in the operating environment, especially for concrete pump for coal mine manual cleaning airborne dust problem, also there is not economy and the actv. solution at present.
At present, in order to reduce workman's work capacity, increase work efficiency, developed various automatic bag-breaking devices for discharging both at home and abroad.Volume is large, weight is large, resistance is large, inefficient problem but these devices exist, and is not used for yet at present mine filling technique.
Summary of the invention
The utility model is intended to overcome the defective of prior art, purpose provides that a kind of volume is little, good dedusting effect, efficient is high, labour intensity is little, simple to operate and can effectively control the granular material automatic bag-breaking device for discharging that is used for mine filling technique of dust diffusion in the operating environment.
For realizing above-mentioned task, the technical solution adopted in the utility model is: this device comprises dust-proof enclosed hood, broken bag bucket, dust exhaustor, blower fan, vibrating grizzly, the second belt transporter, cutter electrical motor and vibrating grizzly electrical motor.
The top in dust-proof enclosed hood left side is provided with inlet point, and the throw-off end of the first belt transporter is positioned at the inboard of inlet point; The top on dust-proof enclosed hood right side communicates with dust exhaustor by cleaning shaft, and the exit end of dust exhaustor and the entrance point of blower fan communicate.The middle part on dust-proof enclosed hood right side is provided with broken bag outlet, and the second belt transporter is arranged on the bottom of dust-proof enclosed hood.
The broken bag bucket is fixed in the dust-proof enclosed hood by broken bag bucket support, and the broken bag bucket is positioned at the below of the first belt transporter throw-off end.Be provided with vibrating grizzly under the broken bag bucket, the left end of vibrating grizzly is positioned at the left side of dust-proof enclosed hood, and the right-hand member of vibrating grizzly is positioned at the outside of broken bag outlet, and four angles of vibrating grizzly are fixed on the corresponding vibrating grizzly bearing by each self-corresponding spring.Be installed in the both sides of vibrating grizzly, the vibrating grizzly electrical motor is positioned at the outside of sealed dust-tight over body case two vibrating grizzly electrical motor coaxial-symmetricals.The second belt transporter is equipped with in the below of vibrating grizzly.
Vibrating grizzly tilts to install, and the angle of inclination is 5 ~ 15 °; The sieve aperture of vibrating grizzly is the strip shape hole, and the number in strip shape hole is 8 ~ 20, and the long side direction in strip shape hole is consistent with the granular material sense of motion, and the width in strip shape hole is 10 ~ 30mm.
Be provided with symmetrically one group of bar shaped cutter holes on the rectangular side panels of the broken bag bucket left and right sides, the distance between the bar shaped cutter holes is 40 ~ 60mm, and the width of bar shaped cutter holes is to cut 2 ~ 3 times of bag cutter thickness, and the length of bar shaped cutter holes is to cut 1 ~ 1.5 times of bag tool diameter.Bar shaped cutter holes outside on even keel is equipped with tool spindle, and each bar shaped cutter holes is provided with and cuts a bag cutter, cuts bag cutter and is installed in successively on the tool spindle; Tool spindle distance of quarrel under the broken bag bucket is 200 ~ 400mm, the axial line of tool spindle apart from the vertical distance of rectangular side panels medial surface than the little 30 ~ 50mm of the radius that cuts bag cutter.Tool spindle is connected with the cutter motor reel, and the cutter electrical motor is installed in the outside of dust-proof enclosed hood.
Described broken bag bucket is comprised of four side plates, the front and back side plate is for falling isosceles trapezoid, left side plate is rectangle, the upper quarrel of broken bag bucket is of a size of (600 ~ 800) * (600 ~ 800) mm, lower quarrel is of a size of (100 ~ 200) * (600 ~ 800) mm, and the height of broken bag bucket is 700 ~ 900mm.
The inlet point of described dust-proof enclosed hood is equipped with screening dirt curtain, and middle screening dirt curtain is equipped with in broken bag exit, and lower screening dirt curtain is equipped with respectively on the left side of dust-proof enclosed hood bottom and right side.
Owing to adopting technique scheme, the utlity model has following good effect:
1) top that the broken bag bucket that cuts bag cutter is housed is delivered in the packaging bag that granular material will be housed of the first belt transporter, the packaging bag that granular material is housed relies on Gravitational sliding in the broken bag bucket, at this moment, the packaging bag that bag cutter will be equipped with granular material of cutting of twirl is cut, the powdery-material packaging bag of cutting and the granular material of the inside thereof slip into vibrating grizzly, vibrating grizzly motor drives shaker vibration, granular material is fallen by the second belt transporter from the strip shape hole of vibrating grizzly to be exported, realize automatic discharging, reduced the generation of dust from the source, dust Control is effective.
2) the broken bag bucket left and right sides cuts bag cutter along the packaging bag landing direction rotation that granular material is housed, the packaging bag that granular material is housed is cut from the many places, two sides, both guaranteed that the powdery-material packaging bag of cutting can be discharged on the vibrating grizzly at an easy rate, guaranteed again the powdery-material packaging bag cut inner basic noresidue granular material after screening, avoided the granular material waste, good separating effect, high efficiency.
3) sieve aperture of vibrating grizzly is designed to the strip shape hole, can effectively prevent leak-off pocket.Because vibrating grizzly tilts, the powdery-material packaging bag of cutting direction of tilt along vibrating grizzly in vibration processes moves, finally skid off dust-proof enclosed hood along compass screen surface, has reached the purpose that powdery-material packaging bag and granular material separate automatically, degree of automation is high, has reduced workman's labor content.
Therefore, this device have that volume is little, good dedusting effect, efficient is high, labour intensity is little, simple to operate and can effectively control the characteristics of dust diffusion in the operating environment.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1;
Fig. 3 is the B-B sectional structure schematic diagram of Fig. 1.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing and implementation case.
Embodiment 1
A kind of granular material automatic bag-breaking device for discharging for mine filling technique.This installs as depicted in figs. 1 and 2, and this device comprises dust-proof enclosed hood 3, broken bag bucket 4, dust exhaustor 8, blower fan 9, vibrating grizzly 12, the second belt transporter 14, cutter electrical motor 15 and vibrating grizzly electrical motor 16.
As shown in Figure 1, the top in dust-proof enclosed hood 3 left sides is provided with inlet point, and the throw-off end of the first belt transporter 1 is positioned at the inboard of inlet point; The top on dust-proof enclosed hood 3 right sides communicates with dust exhaustor 8 by cleaning shaft 7, and the entrance point of the exit end of dust exhaustor 8 and blower fan 9 communicates.The middle part on dust-proof enclosed hood 3 right sides is provided with broken bag outlet, and the second belt transporter 14 is arranged on the bottom of dust-proof enclosed hood 3.
Broken bag bucket 4 is fixed in the dust-proof enclosed hood 3 by broken bag bucket support 6, and broken bag bucket 4 is positioned at the below of the first belt transporter 1 throw-off end.Be provided with vibrating grizzly 12 under the broken bag bucket 4, the left end of vibrating grizzly 12 is positioned at the left side of dust-proof enclosed hood 3, and the right-hand member of vibrating grizzly 12 is positioned at the outside of broken bag outlet, and four angles of vibrating grizzly 12 are fixed on the corresponding vibrating grizzly bearing 11 by each self-corresponding spring.Be installed in the both sides of vibrating grizzly 12, vibrating grizzly electrical motor 16 is positioned at the outside of dust-proof enclosed hood 3 housings two vibrating grizzly electrical motor 16 coaxial-symmetricals.The second belt transporter 14 is equipped with in the below of vibrating grizzly 12.
As shown in Figure 1, vibrating grizzly 12 tilts to install, and the angle of inclination is 5 ~ 10 °; As shown in Figure 3, the sieve aperture of vibrating grizzly 12 is the strip shape hole, and the number in strip shape hole is 10, and the long side direction in strip shape hole is consistent with the granular material sense of motion, and the width in strip shape hole is 10 ~ 20mm.
Be provided with symmetrically one group of bar shaped cutter holes on the rectangular side panels of broken bag bucket 4 left and right sides, distance between the bar shaped cutter holes is 40 ~ 50mm, the width of bar shaped cutter holes is to cut 2 ~ 3 times of bag cutter 5 thickness, and the length of bar shaped cutter holes is to cut 1 ~ 1.5 times of bag cutter 5 diameters.Bar shaped cutter holes outside on even keel is equipped with tool spindle, and each bar shaped cutter holes is provided with and cuts bag cutter 5, cuts bag cutter 5 and is installed in successively on the tool spindle; Tool spindle is 200 ~ 300mm apart from the distance of 4 times quarrels of broken bag bucket, and the axial line of tool spindle is apart from the vertical distance of the rectangular side panels medial surface little 30 ~ 50mm of radius than bag breaking cutter 5.Tool spindle is connected with cutter electrical motor 15 axles, and cutter electrical motor 15 is installed in the outside of dust-proof enclosed hood 3.
Described broken bag bucket 4 is comprised of four side plates, the front and back side plate is for falling isosceles trapezoid, left side plate is rectangle, the upper quarrel of broken bag bucket 4 is of a size of (600 ~ 700) * (600 ~ 700) mm, lower quarrel is of a size of (100 ~ 150) * (600 ~ 700) mm, and the height of broken bag bucket 4 is 700 ~ 800mm.
The inlet point of described dust-proof enclosed hood 3 is equipped with screening dirt curtain 2, and middle screening dirt curtain 9 is equipped with in broken bag exit, and lower screening dirt curtain 14 is equipped with respectively on the left side of dust-proof enclosed hood 3 bottoms and right side.The dust that produces in whole cutting broken bag and the granular material course of conveying is isolated seizure, through cleaning shaft 7 transmission, by dust exhaustor 8 purifying treatment.
Embodiment 2
A kind of granular material automatic bag-breaking device for discharging for mine filling technique.Except following technical parameter, all the other are with embodiment 1:
The angle of inclination of vibrating grizzly 12 is 10 ~ 15 °; The number of vibrating grizzly 12 sieve apertures is 8 ~ 9; The width of vibrating grizzly 12 sieve apertures is 20 ~ 30mm; Distance between the bar shaped cutter holes is 50 ~ 60mm; Tool spindle is 300 ~ 400mm apart from the distance of 4 times quarrels of broken bag bucket; The upper quarrel of broken bag bucket 4 is of a size of (700 ~ 800) * (700 ~ 800) mm, lower quarrel be of a size of (150 ~ 200) *
(700 ~ 800) mm, the height of broken bag bucket 4 are 800 ~ 900mm.
Embodiment 3
A kind of granular material automatic bag-breaking device for discharging for mine filling technique.Except following technical parameter, all the other are with embodiment 1:
The angle of inclination of vibrating grizzly 12 is 8 ~ 12 °; The number of vibrating grizzly 12 sieve apertures is 11 ~ 20; The width of vibrating grizzly 12 sieve apertures is 15 ~ 25mm; Distance between the bar shaped cutter holes is 45 ~ 55mm; Tool spindle is 280 ~ 380mm apart from the distance of 4 times quarrels of broken bag bucket; The upper quarrel of broken bag bucket 4 is of a size of (650 ~ 750) * (650 ~ 750) mm, lower quarrel be of a size of (120 ~ 180) *
(650 ~ 750) mm, the height of broken bag bucket 4 are 750 ~ 850mm.
This specific embodiment has following good effect:
1) top that the broken bag bucket 4 that cuts bag cutter 5 is housed is delivered in the packaging bag that granular material will be housed of the first belt transporter 1, the packaging bag that granular material is housed relies on Gravitational sliding in broken bag bucket 4, at this moment, the packaging bag that bag cutter 5 will be equipped with granular material of cutting of twirl is cut, the powdery-material packaging bag of cutting and the granular material of the inside thereof slip into vibrating grizzly 12, vibrating grizzly electrical motor 16 drives vibrating grizzly 12 vibrations, granular material is fallen by 14 outputs of the second belt transporter from the strip shape hole of vibrating grizzly 12, realize automatic discharging, reduced the generation of dust from the source, dust Control is effective.
2) broken bag bucket 4 left and right sides cuts bag cutter 5 along the packaging bag landing direction rotation that granular material is housed, the packaging bag that granular material is housed is cut from the many places, two sides, both guaranteed that the powdery-material packaging bag of cutting can be discharged on the vibrating grizzly 12 at an easy rate, guaranteed again the powdery-material packaging bag cut inner basic noresidue granular material after screening, avoided the granular material waste, good separating effect, high efficiency.
3) sieve aperture of vibrating grizzly 12 is designed to the strip shape hole, can effectively prevent leak-off pocket.Because vibrating grizzly 12 tilts, the powdery-material packaging bag of cutting moves along the direction of tilt of vibrating grizzly 12 in vibration processes, finally skid off dust-proof enclosed hood 3 along compass screen surface, reached the purpose that powdery-material packaging bag and granular material separate automatically, degree of automation is high, has reduced workman's labor content.
Therefore, this device have that volume is little, good dedusting effect, efficient is high, labour intensity is little, simple to operate and can effectively control the characteristics of dust diffusion in the operating environment.
Claims (2)
1. granular material automatic bag-breaking device for discharging that is used for mine filling technique, this device comprises dust-proof enclosed hood (3), broken bag bucket (4), dust exhaustor (8), blower fan (9), vibrating grizzly (12), the second belt transporter (14), cutter electrical motor (15) and vibrating grizzly electrical motor (16);
The top in dust-proof enclosed hood (3) left side is provided with inlet point, the throw-off end of the first belt transporter (1) is positioned at the inboard of inlet point, the top on dust-proof enclosed hood (3) right side communicates with dust exhaustor (8) by cleaning shaft (7), and the entrance point of the exit end of dust exhaustor (8) and blower fan (9) communicates; The middle part on dust-proof enclosed hood (3) right side is provided with broken bag outlet, and the second belt transporter (14) is arranged on the bottom of dust-proof enclosed hood (3);
Broken bag bucket (4) is fixed in the dust-proof enclosed hood (3) by broken bag bucket support (6), and broken bag bucket (4) is positioned at the below of the first belt transporter (1) throw-off end; Be provided with vibrating grizzly (12) under the broken bag bucket (4), the left end of vibrating grizzly (12) is positioned at the left side of dust-proof enclosed hood (3), the right-hand member of vibrating grizzly (12) is positioned at the outside of broken bag outlet, and four angles of vibrating grizzly (12) are fixed on the corresponding vibrating grizzly bearing (11) by each self-corresponding spring; Be installed in the both sides of vibrating grizzly (12), vibrating grizzly electrical motor (16) is positioned at the outside of dust-proof enclosed hood (3) housing two vibrating grizzly electrical motors (16) coaxial-symmetrical; The second belt transporter (14) is equipped with in the below of vibrating grizzly (12);
Vibrating grizzly (12) tilts to install, and the angle of inclination is 5 ~ 15 °; The sieve aperture of vibrating grizzly (12) is the strip shape hole, and the number in strip shape hole is 8 ~ 20, and the long side direction in strip shape hole is consistent with the granular material sense of motion, and the width in strip shape hole is 10 ~ 30mm;
Be provided with symmetrically one group of bar shaped cutter holes on the rectangular side panels of broken bag bucket (4) left and right sides, distance between the bar shaped cutter holes is 40 ~ 60mm, the width of bar shaped cutter holes is for cutting 2 ~ 3 times of a bag cutter (5) thickness, and the length of bar shaped cutter holes is for cutting 1 ~ 1.5 times of a bag cutter (5) diameter; Bar shaped cutter holes outside on even keel is equipped with tool spindle, and each bar shaped cutter holes is provided with and cuts a bag cutter (5), cuts a bag cutter (5) and is installed in successively on the tool spindle; Tool spindle is 200 ~ 400mm apart from the distance of the lower quarrel of broken bag bucket (4), and the axial line of tool spindle is apart from the vertical distance of the rectangular side panels medial surface little 30 ~ 50mm of radius than bag breaking cutter (5); Tool spindle is connected with cutter electrical motor (15) axle, and cutter electrical motor (15) is installed in the outside of dust-proof enclosed hood (3).
2. the granular material automatic bag-breaking device for discharging for mine filling technique according to claim 1, it is characterized in that described broken bag bucket (4) is comprised of four side plates, the front and back side plate is for falling isosceles trapezoid, left side plate is rectangle, the upper quarrel of broken bag bucket (4) is of a size of (600 ~ 800) * (600 ~ 800) mm, lower quarrel is of a size of (100 ~ 200) * (600 ~ 800) mm, and the height of broken bag bucket (4) is 700 ~ 900mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554559 CN202848131U (en) | 2012-10-26 | 2012-10-26 | Powdery material automatic bag-breaking discharge device for mine filling process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554559 CN202848131U (en) | 2012-10-26 | 2012-10-26 | Powdery material automatic bag-breaking discharge device for mine filling process |
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| CN202848131U true CN202848131U (en) | 2013-04-03 |
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| CN 201220554559 Expired - Fee Related CN202848131U (en) | 2012-10-26 | 2012-10-26 | Powdery material automatic bag-breaking discharge device for mine filling process |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103241565A (en) * | 2013-04-23 | 2013-08-14 | 安徽泽加业粉体工程有限公司 | Automatic bag-opening dumping device for small bags |
| CN103950601A (en) * | 2014-05-10 | 2014-07-30 | 葵花药业集团(冀州)有限公司 | Packaging bag tearing machine |
| CN104689982A (en) * | 2015-03-10 | 2015-06-10 | 湘西自治州丰达合金科技有限公司 | Automatic powder removing device for rolled and forged manganese |
| CN104801481A (en) * | 2015-04-20 | 2015-07-29 | 高城 | High-efficiency material bag separating device |
| CN104828342A (en) * | 2015-03-17 | 2015-08-12 | 华侨大学 | Automatic unpacking and blanking device |
| CN104843259A (en) * | 2015-04-16 | 2015-08-19 | 武汉科技大学 | Bag moving machine with full-automatic bag breaking and discharging functions |
| CN104890963A (en) * | 2015-03-27 | 2015-09-09 | 华侨大学 | A turning discharging device |
| CN105035439A (en) * | 2015-07-14 | 2015-11-11 | 宁德师范学院 | Automatic bale breaker and method |
| CN105668194A (en) * | 2016-04-19 | 2016-06-15 | 山东耀华特耐科技有限公司 | Efficient feeding equipment for high-strength wear-resistant castable production line and production process of efficient feeding equipment |
| CN105819043A (en) * | 2016-04-19 | 2016-08-03 | 山东耀华特耐科技有限公司 | Full-automatic production line for high-strength and wear-resistant castable and production process for full-automatic production line |
| CN106347896A (en) * | 2016-11-03 | 2017-01-25 | 广州市图治科技应用有限公司 | Enclosed collecting equipment for garbage |
| CN106628460A (en) * | 2017-01-13 | 2017-05-10 | 中国计量大学 | Vibrating and residue removing manner based automatic unpacking and charging method |
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| CN113413828A (en) * | 2021-08-06 | 2021-09-21 | 深圳市新泰盈电子材料有限公司 | Powder feeding system with dustproof function |
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- 2012-10-26 CN CN 201220554559 patent/CN202848131U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103241565A (en) * | 2013-04-23 | 2013-08-14 | 安徽泽加业粉体工程有限公司 | Automatic bag-opening dumping device for small bags |
| CN103950601A (en) * | 2014-05-10 | 2014-07-30 | 葵花药业集团(冀州)有限公司 | Packaging bag tearing machine |
| CN104689982A (en) * | 2015-03-10 | 2015-06-10 | 湘西自治州丰达合金科技有限公司 | Automatic powder removing device for rolled and forged manganese |
| CN104828342A (en) * | 2015-03-17 | 2015-08-12 | 华侨大学 | Automatic unpacking and blanking device |
| CN104890963A (en) * | 2015-03-27 | 2015-09-09 | 华侨大学 | A turning discharging device |
| CN104843259B (en) * | 2015-04-16 | 2017-03-01 | 武汉科技大学 | A kind of full-automatic broken bag discharging moves bag machine |
| CN104843259A (en) * | 2015-04-16 | 2015-08-19 | 武汉科技大学 | Bag moving machine with full-automatic bag breaking and discharging functions |
| CN104801481A (en) * | 2015-04-20 | 2015-07-29 | 高城 | High-efficiency material bag separating device |
| CN105035439A (en) * | 2015-07-14 | 2015-11-11 | 宁德师范学院 | Automatic bale breaker and method |
| CN105035439B (en) * | 2015-07-14 | 2016-07-06 | 宁德师范学院 | A kind of bale breaker and method automatically |
| CN105668194A (en) * | 2016-04-19 | 2016-06-15 | 山东耀华特耐科技有限公司 | Efficient feeding equipment for high-strength wear-resistant castable production line and production process of efficient feeding equipment |
| CN105819043A (en) * | 2016-04-19 | 2016-08-03 | 山东耀华特耐科技有限公司 | Full-automatic production line for high-strength and wear-resistant castable and production process for full-automatic production line |
| CN105819043B (en) * | 2016-04-19 | 2018-07-17 | 山东耀华特耐科技有限公司 | The automatic production line and its production technology of high-strength wear-resistant pouring material |
| CN106347896A (en) * | 2016-11-03 | 2017-01-25 | 广州市图治科技应用有限公司 | Enclosed collecting equipment for garbage |
| CN106347896B (en) * | 2016-11-03 | 2018-10-02 | 广州市图治科技应用有限公司 | Rubbish closes collecting device |
| CN106628460A (en) * | 2017-01-13 | 2017-05-10 | 中国计量大学 | Vibrating and residue removing manner based automatic unpacking and charging method |
| CN110356663A (en) * | 2019-07-02 | 2019-10-22 | 徐州明威饲料有限公司 | A kind of Feed Manufacturing ton feed packet charging device |
| CN113413828A (en) * | 2021-08-06 | 2021-09-21 | 深圳市新泰盈电子材料有限公司 | Powder feeding system with dustproof function |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20131026 |