CN201124152Y - Non-blocking, energy-saving, environment-protecting rotary sieve - Google Patents
Non-blocking, energy-saving, environment-protecting rotary sieve Download PDFInfo
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- CN201124152Y CN201124152Y CNU2007201904649U CN200720190464U CN201124152Y CN 201124152 Y CN201124152 Y CN 201124152Y CN U2007201904649 U CNU2007201904649 U CN U2007201904649U CN 200720190464 U CN200720190464 U CN 200720190464U CN 201124152 Y CN201124152 Y CN 201124152Y
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Abstract
The utility model provides a no-block, energy saving and environmental protection rotary screen, relating to the screening machinery technical field, wherein a screen shaft has one end fixedly connected with a bracket by a bearing base and the other end fixedly connected with the bracket by a reducer; the screen shaft is in welding connection with a circular and strip-formed screen barrel; the bracket is fixedly connected with a motor, a screen cleaning shaft, a sealing shielding cover, a feeding barrel, an undersize funnel and an oversize funnel, and the lower end of the sealing shielding cover is also fixedly connected with the undersize funnel; the screen cleaning shaft connected with screen cleaning slivers has one end in welded connection with a manual adjustment handle. The circular and strip-formed screen barrel adopts a cylindrical screen shaped structure formed by a plurality of circular strips which are concentric and same in radian concentrically arranged spaced along the axial direction, and the cross section of each circular strip is trapezoidal, quadrate, rectangular, elliptic or triangular; clearances between circular strips are matched with corresponding screen cleaning silvers on the screen cleaning shaft; an angle between the screen shaft and a horizontal line is 5 to 20 degrees; the screen shaft is parallel to the screen cleaning shaft. The utility model is applied to the fuel screening and has advantages of no block, energy conservation, environmental protection, high efficiency and wide application range, etc.
Description
Technical field
That the utility model does not have is stifled, the roto-siofter of energy-saving and environmental protection, relates to field of mechanical technique; Be particularly related to the sieving machine technical field; Relate in particular to and to clear up the sieving machine technical field that screen drum stops up; Be specifically related to not have roto-siofter technical fields stifled, energy-saving and environmental protection.
Background technology
At present, in CFBB power plant, the employed fuel of its CFBB is middle coal, coal drystone, coal slime ... Deng, these fuel exist the inherent characteristic that viscosity is big, humidity is high, because this inherent characteristic of fuel can produce the series of negative influence to screening plant; This negative effect mainly shows as: the bonding screen drum, stop up that screen drum, screening efficiency are low, screening plant overload operation, screening plant long operational time, the wearing and tearing that strengthen coal breaker, the fuel particle behind the sieve spend broken, screening effect is poor, the consumes energy height, influence burning in circulating fluid bed boiler adjustment, influence the burning of fuel, boiler operatiopn instability, fuel the thermal efficiency low, cause waste of fuel, overall economic efficiency poor ... Deng.Based on applicant's professional knowledge be engaged in the many years of experience of industry work and to the excelsior pursuit of cause; At above-described many deficiencies, defective and drawback, specially on the structure to screen drum implement substantial improvement with perfect, increase cleaning axle and cleaning axle and the cleaning sliver that is connected and hand adjustment handle are set and can according to circumstances screen drum be cleared up timely, thus, the utility model is exactly conscientious and on sufficient investigation, understanding, analysis, the above-mentioned existing known technology of summary and the present situation basis, for overcoming and solving that the many deficiencies, defective and the drawback that exist in the existing known technology succeed in developing.
The utility model content
The purpose of this utility model provides a kind of roto-siofters stifled, energy-saving and environmental protection that do not have, one end of its sieve axle is all fastening with support by decelerator by bearing block, the other end, its sieve axle and the welding of circular arc strip screen drum, the lower end and the screenings funnel of its support and motor, support and cleaning axle, support and seal isolation cover, support and feeding cylinder, support and screenings funnel, support and oversize funnel, seal isolation cover are all fastening, be provided with on its cleaning axle and be connected with the cleaning sliver, an end of its cleaning axle and the welding of hand adjustment handle.Described circular arc strip screen drum constitutes the structure of drum sieve shape in the mode that is separated with slit and concentric, axial arrangement for many circular arc bars that wait with one heart circle.The circular arc bar cross section of described circular arc strip screen drum is for selecting a kind of structure in trapezoid cross section structure, square cross, rectangle cross section structure, elliptical sectional structure, the triangular cross-sectional configuration.Described sieve axle is that 5-20 degree angle, sieve axle parallel with the cleaning axle with the angle that horizontal line constitutes.
The purpose that reaches by the utility model is: a kind of " not having stifled; energy-conservation; the roto-siofter of environmental protection " new product is provided, overcome and solve and have the many deficiencies that exist in the known technology, defective and drawback make it scientific and reasonable for structure, non-caked screen drum, the non clogging screen tube, the screening efficiency height, screening plant is overload operation not, screening plant is normal running time, reduce the wearing and tearing of coal breaker, fuel particle degree behind the sieve is moderate, screening effect is good, consumes energy is low, the burning of CFBB can be adjusted, the burning of fuel can burn, boiler operatiopn is stable, the thermal efficiency height of fuel, reduce waste of fuel, overall economic efficiency is good, effect stability is reliable, easy for operation, be easy to processing and fabricating and I﹠M and cost is low, help wide popularization and application.
The utility model can accomplish the end in view.
For achieving the above object, the technical scheme that provides of the utility model is:
A kind of do not have roto-siofters stifled, energy-saving and environmental protection, mainly is made of support, sieve axle, circular arc strip screen drum, decelerator, motor, cleaning axle, cleaning sliver, hand adjustment handle, seal isolation cover, feeding cylinder, screenings funnel, oversize funnel;
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, one end of its sieve axle all is fastenedly connected by securing member with support by decelerator by bearing block, the other end, its sieve axle and the welding of circular arc strip screen drum, the lower end and the screenings funnel of its support and motor, support and cleaning axle, support and seal isolation cover, support and feeding cylinder, support and screenings funnel, support and oversize funnel, seal isolation cover are fastenedly connected by securing member, be provided with on its cleaning axle and be connected with the cleaning sliver, an end of its cleaning axle and the welding of hand adjustment handle.
Described nothing is stifled, energy-conservation, the roto-siofter of environmental protection, described support is a support body shape structure, described sieve axle, the cleaning axle is a shape structure, described circular arc strip screen drum constitutes the structure of drum sieve shape in the mode that is separated with slit and concentric, axial arrangement for many circular arc bars that wait with one heart circle, the gearbox shape structure that described decelerator is general for market purchases, the motor shape structure that described motor is general for market purchases, described cleaning sliver is a wire brush shape structure, described hand adjustment handle handle shape structure, described seal isolation cover is that side-looking is trapezoidal and tubular structure that the lower end section is rectangle to upper end section, described feeding cylinder is the taper tubular structure, described screenings funnel, the oversize funnel is funnel-shaped structure.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the circular arc bar cross section of described circular arc strip screen drum is for selecting a kind of structure in trapezoid cross section structure, square cross, rectangle cross section structure, elliptical sectional structure, the triangular cross-sectional configuration.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the circular arc bar of described circular arc strip screen drum is provided with many, and described sieve axle and circular arc strip screen drum are welded as between the circular arc bar that sieves axle and circular arc strip screen drum and weld by spoke.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and described cleaning sliver is provided with many.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the cleaning sliver that connection is set on formed slit and the cleaning axle between the circular arc bar of described circular arc strip screen drum is corresponding and identical.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the feeding cylinder end of described sieve axle is higher than oversize funnel end, promptly the sieve axle is 5-20 degree angle with the angle that horizontal line constitutes.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and described sieve axle parallels with the cleaning axle.
The operation principle of the present utility model and the course of work are:
The utility model in use, fuel from feeding cylinder enter into circular arc strip screen drum the tube in after, the angle that has 5-20 degree angle owing to the screen drum that rotates through deceleration, so obtain screening in the process that fuel just exports under gravity and action of centrifugal force, from entering the mouth to, promptly screenings is collected by the oversize funnel by the collection of screenings funnel, oversize; In this course, constitute the structure of drum sieve shape in the mode that is separated with slit and concentric, axial arrangement for many circular arc bars that wait with one heart circle owing to circular arc strip screen drum, so, fuel the comprehensive function power that stands gravity and centrifugal force simultaneously, also can one the tunnel be subjected to continuously stopping again and again of an another described circular arc bar and the bump that produces, this bump can obtain effectively to separate and be scattered by fuel big at viscosity, the high humidity inherent characteristic, guarantees effectively and has improved screening effect.In screening process, because the utility model is provided with the device that is referred to as " sieve cleaning mechanism " that is made of jointly cleaning axle, cleaning sliver, hand adjustment handle, simultaneously, the cleaning sliver that connection is set on formed slit and the cleaning axle between the circular arc bar of described circular arc strip screen drum is corresponding and identical, so, as long as fuel is disposed the fuel that formed slit between the described circular arc bar forms when stopping up, described cleaning sliver just in time will constitute obstruction; Also owing to be welded with the hand adjustment handle on the cleaning axle of described " sieve cleaning mechanism ", so, can by move the hand adjustment handle adjust the angle of cleaning axle and drive cleaning sliver translation-angle, with realize being formed between cleaning sliver and described circular arc bar between the slit apart from and make this distance remain at needed degree, to reach the purpose that the fuel that constitutes obstruction is in time disposed, when treating that the cleaning sliver may wear to a certain degree, as long as it is just passable to change the cleaning sliver.Because the utility model is provided with the seal isolation cover, make whole screening process all be in the state of seal isolation, what can not produce the fuel dust raises, also just not can cause the pollution to environment outward, it is energy-conservation but also so the utility model not only clogging can not occur because of can not causing pollution environmental protection, so just be referred to as " not having roto-siofters stifled, energy-saving and environmental protection " to environment.Operation of the present utility model and extremely easy to use not only can be applicable to the screening to fuel, but also can be applicable to the screening to various materials, and its range of application and adaptability are extremely strong, have the characteristics of applied range.
Owing to adopted technical scheme provided by the utility model, because the operation principle of the present utility model and the course of work are described, make the utility model compare with existing known technology, obtained following beneficial effect:
1, welds by spoke owing to the utility model is provided with between circular arc strip screen drum and circular arc strip screen drum constitute the structure of drum sieve shape and sieve axle and circular arc strip screen drum in the mode that is separated with slit and concentric, axial and arranges for the circular arc bar of many circles such as the concentric circular arc bar, thereby obtained the beneficial effect that can sieve fuel.
2,, thereby obtained screening process beneficial effect smoothly because the feeding cylinder end of sieve axle described in the utility model is higher than oversize funnel end, promptly the sieve axle is 5-20 degree angle with the angle that horizontal line constitutes.
3, since the utility model above-mentioned two described; Thereby obtained fuel the comprehensive function power that stands gravity and centrifugal force simultaneously, also can one the tunnel be subjected to continuously stopping again and again of an another described circular arc bar and the bump that produces, this bump can obtain effectively to separate and be scattered by fuel big at viscosity, the high humidity inherent characteristic, guarantees effectively and the beneficial effect that has improved screening effect.
4, since the circular arc bar cross section of circular arc strip screen drum described in the utility model for selecting a kind of structure in trapezoid cross section structure, square cross, rectangle cross section structure, elliptical sectional structure, the triangular cross-sectional configuration, thereby obtained not to be only applicable to the screening of fuel but also be applicable to various materials are sieved and the beneficial effect of wide accommodation.
5,, thereby obtained and to have cleared up and to have prevented to stop up, prevent sticking the sieve and the beneficial effect of the screening efficiency height and the saving energy to circular arc strip screen drum because the utility model is provided with the described device that is referred to as " sieve cleaning mechanism " that is made of jointly cleaning axle, cleaning sliver, hand adjustment handle.
6,, thereby obtained to remain the beneficial effect that described circular arc strip screen drum is in the works fine state because cleaning sliver described in the utility model is provided with many and can adjust or change according to abrasion condition.
7,, thereby obtained that dust is raised, the free from environmental pollution and beneficial effect of environmental protection outward because the utility model is provided with the seal isolation cover.
8,, thereby obtained the beneficial effect of " not having roto-siofters stifled, energy-saving and environmental protection " new product because above each bar of the present utility model is described.
9,, thereby obtained to overcome and solve the beneficial effect of the many deficiencies, defective and the drawback that exist in the existing known technology because above each bar of the present utility model is described.
10, because design science of the present utility model is reasonable, simple and practical, use is easy to operate, effect stability is reliable, thus the beneficial effect of low, an easy to use and sharp popularization that obtained to be easy to be made.
Description of drawings
Fig. 1 looks schematic diagram for the utility model specific embodiment structure master.
Fig. 2 is that the A of Fig. 1 is to schematic diagram.Promptly overlook to schematic diagram.
Fig. 3 is that the B of Fig. 1 is to schematic diagram.Be that side-looking is to schematic diagram.
Label among the figure: 1, support, 2, sieve axle, 3, circular arc strip screen drum, 4, decelerator, 5, motor, 6, the cleaning axle, 7, the cleaning sliver, 8, the hand adjustment handle, 9, the seal isolation cover, 10, feeding cylinder, 11, the screenings funnel, 12, the oversize funnel.
The specific embodiment
Below in conjunction with Figure of description, the utility model is described in detail.Shown in Figure of description 1,2,3:
A kind of do not have roto-siofters stifled, energy-saving and environmental protection, mainly is made of support 1, sieve axle 2, circular arc strip screen drum 3, decelerator 4, motor 5, cleaning axle 6, cleaning sliver 7, hand adjustment handle 8, seal isolation cover 9, feeding cylinder 10, screenings funnel 11, oversize funnel 12;
Described nothing is stifled, energy-conservation, the roto-siofter of environmental protection, one end of its sieve axle 2 passes through bearing block, the other end all is fastenedly connected by securing member with support 1 by decelerator 4, its sieve axle 2 and 3 welding of circular arc strip screen drum, its support 1 and motor 5, support 1 and cleaning axle 6, support 1 and seal isolation cover 9, support 1 and feeding cylinder 10, support 1 and screenings funnel 11, support 1 and oversize funnel 12, the lower end of seal isolation cover 9 and screenings funnel 11 are fastenedly connected by securing member, be provided with on its cleaning axle 6 and be connected with cleaning sliver 7, an end of its cleaning axle 6 and 8 welding of hand adjustment handle.
Described nothing is stifled, energy-conservation, the roto-siofter of environmental protection, described support 1 is a support body shape structure, described sieve axle 2, cleaning axle 6 is a shape structure, described circular arc strip screen drum 3 constitutes the structure of drum sieve shape in the mode that is separated with slit and concentric, axial arrangement for many circular arc bars that wait with one heart circle, described decelerator 4 is purchased general gearbox shape structure for market, described motor 5 is purchased general motor shape structure for market, described cleaning sliver 7 is a wire brush shape structure, described hand adjustment handle 8 handle shape structures, described seal isolation cover 9 is the tubular structure that trapezoidal lower end section is rectangle for side-looking to upper end section, described feeding cylinder 10 is taper tubular structure, described screenings funnel 11, oversize funnel 12 is funnel-shaped structure.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the circular arc bar cross section of described circular arc strip screen drum 3 is for selecting a kind of structure in trapezoid cross section structure, square cross, rectangle cross section structure, elliptical sectional structure, the triangular cross-sectional configuration.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the circular arc bar of described circular arc strip screen drum 3 is provided with many, and described sieve axle 2 and circular arc strip screen drum 3 are welded as between the circular arc bar that sieves axle 2 and circular arc strip screen drum 3 and weld by spoke.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and described cleaning sliver 7 is provided with many.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the cleaning sliver 7 that connection is set on formed slit and the cleaning axle 6 between the circular arc bar of described circular arc strip screen drum 3 is corresponding and identical.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and the feeding cylinder end of described sieve axle 2 is higher than oversize funnel end, promptly sieve axle 2 is 5-20 degree angle with the angle that horizontal line constitutes.
Described nothing is stifled, the roto-siofter of energy-saving and environmental protection, and described sieve axle 2 parallels with cleaning axle 6.
In above-mentioned specific implementation process: implement with trapezoid cross section structure, square cross, rectangle cross section structure, elliptical sectional structure, triangular cross-sectional configuration respectively in the circular arc bar cross section to described circular arc strip screen drum 3; The angle that described sieve axle 2 and horizontal line constitute is implemented with 5,6,8,10,12,15,16,18,20 degree angles respectively; All received the expection good result.
After the utility model is implemented to finish, carried out the test of examination row,, obtained the good result of expection through certification test.
The above is preferred embodiment of the present utility model only, is not that the utility model is done any pro forma restriction; The those of ordinary skill of all industry, but all shown in the by specification accompanying drawing and the above, and implement the utility model swimmingly; But all those skilled in the art in not breaking away from the technical solutions of the utility model scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, are equivalent embodiment of the present utility model; Simultaneously, all foundations essence technology of the present utility model all still belongs in the scope of the technical solution of the utility model change, modification and the differentiation etc. of any equivalent variations that above embodiment did.
Claims (8)
1, a kind of do not have roto-siofters stifled, energy-saving and environmental protection, it is characterized in that: mainly be made of support (1), sieve axle (2), a circular arc strip screen drum (3), decelerator (4), motor (5), cleaning axle (6), cleaning sliver (7), hand adjustment handle (8), seal isolation cover (9), feeding cylinder (10), screenings funnel (11), oversize funnel (12);
Described nothing is stifled, energy-conservation, the roto-siofter of environmental protection, one end of its sieve axle (2) passes through bearing block, the other end all is fastenedly connected by securing member with support (1) by decelerator (4), its sieve axle (2) and circular arc strip screen drum (3) welding, its support (1) and motor (5), support (1) and cleaning axle (6), support (1) and seal isolation cover (9), support (1) and feeding cylinder (10), support (1) and screenings funnel (11), support (1) and oversize funnel (12), the lower end of seal isolation cover (9) and screenings funnel (11) are fastenedly connected by securing member, its cleaning axle (6) is gone up to be provided with and is connected with cleaning sliver (7), an end of its cleaning axle (6) and hand adjustment handle (8) welding.
2, nothing according to claim 1 is stifled, energy-conservation, the roto-siofter of environmental protection, it is characterized in that: described support (1) is support body shape structure, described sieve axle (2), cleaning axle (6) is a shape structure, described circular arc strip screen drum (3) constitutes the structure of drum sieve shape in the mode that is separated with slit and concentric, axial arrangement for many circular arc bars that wait with one heart circle, described decelerator (4) is purchased general gearbox shape structure for market, described motor (5) is purchased general motor shape structure for market, described cleaning sliver (7) is a wire brush shape structure, described hand adjustment handle (8) handle shape structure, described seal isolation cover (9) is the tubular structure that trapezoidal lower end section is rectangle for side-looking to upper end section, described feeding cylinder (10) is the taper tubular structure, described screenings funnel (11), oversize funnel (12) is funnel-shaped structure.
3, the roto-siofter of stifled, the energy-saving and environmental protection of nothing according to claim 1, it is characterized in that: the circular arc bar cross section of described circular arc strip screen drum (3) is for selecting a kind of structure in trapezoid cross section structure, square cross, rectangle cross section structure, elliptical sectional structure, the triangular cross-sectional configuration.
4, the roto-siofter of stifled, the energy-saving and environmental protection of nothing according to claim 1, it is characterized in that: the circular arc bar of described circular arc strip screen drum (3) is provided with many, and described sieve axle (2) and circular arc strip screen drum (3) are welded as between the circular arc bar that sieves axle (2) and circular arc strip screen drum (3) and weld by spoke.
5, the roto-siofter of stifled, the energy-saving and environmental protection of nothing according to claim 1, it is characterized in that: described cleaning sliver (7) is provided with many.
6, the roto-siofter of stifled, the energy-saving and environmental protection of nothing according to claim 1 is characterized in that: the cleaning sliver (7) that connection is set on formed slit and the cleaning axle (6) between the circular arc bar of described circular arc strip screen drum (3) is corresponding and identical.
7, the roto-siofter of stifled, the energy-saving and environmental protection of nothing according to claim 1, it is characterized in that: the feeding cylinder end of described sieve axle (2) is higher than oversize funnel end, promptly sieve axle (2) is 5-20 degree angle with the angle that horizontal line constitutes.
8, the roto-siofter of stifled, the energy-saving and environmental protection of nothing according to claim 1, it is characterized in that: described sieve spool (2) parallels with cleaning axle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201904649U CN201124152Y (en) | 2007-11-29 | 2007-11-29 | Non-blocking, energy-saving, environment-protecting rotary sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201904649U CN201124152Y (en) | 2007-11-29 | 2007-11-29 | Non-blocking, energy-saving, environment-protecting rotary sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201124152Y true CN201124152Y (en) | 2008-10-01 |
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ID=39997566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201904649U Expired - Fee Related CN201124152Y (en) | 2007-11-29 | 2007-11-29 | Non-blocking, energy-saving, environment-protecting rotary sieve |
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| Country | Link |
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| CN (1) | CN201124152Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825000A (en) * | 2012-09-01 | 2012-12-19 | 山西平朔煤矸石发电有限责任公司 | Slag sorting device for circulating fluidized bed |
| CN103861797A (en) * | 2012-12-11 | 2014-06-18 | 蒋小华 | Anti-blocking rotary drum screen |
| CN105268629A (en) * | 2015-12-07 | 2016-01-27 | 关勇河 | Automatic ore pulp screening device for beneficiation |
| CN105311877A (en) * | 2015-11-13 | 2016-02-10 | 淮南润成科技股份有限公司 | Water purification station for underground mine |
| CN105344590A (en) * | 2015-11-30 | 2016-02-24 | 天津百利阳光环保设备有限公司 | Rake type vibrating screening machine |
| CN105344579A (en) * | 2015-11-30 | 2016-02-24 | 天津百利阳光环保设备有限公司 | Adjustable vibration type bar screening equipment |
| CN105381945A (en) * | 2015-12-07 | 2016-03-09 | 关勇河 | Mineral processing ore pulp screening device |
-
2007
- 2007-11-29 CN CNU2007201904649U patent/CN201124152Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825000A (en) * | 2012-09-01 | 2012-12-19 | 山西平朔煤矸石发电有限责任公司 | Slag sorting device for circulating fluidized bed |
| CN103861797A (en) * | 2012-12-11 | 2014-06-18 | 蒋小华 | Anti-blocking rotary drum screen |
| CN103861797B (en) * | 2012-12-11 | 2015-09-30 | 蒋小华 | A kind of anti-blocking drum sieve |
| CN105311877A (en) * | 2015-11-13 | 2016-02-10 | 淮南润成科技股份有限公司 | Water purification station for underground mine |
| CN105344590A (en) * | 2015-11-30 | 2016-02-24 | 天津百利阳光环保设备有限公司 | Rake type vibrating screening machine |
| CN105344579A (en) * | 2015-11-30 | 2016-02-24 | 天津百利阳光环保设备有限公司 | Adjustable vibration type bar screening equipment |
| CN105344590B (en) * | 2015-11-30 | 2017-03-29 | 天津百利阳光环保设备有限公司 | A kind of rake shakes screening machine |
| CN105268629A (en) * | 2015-12-07 | 2016-01-27 | 关勇河 | Automatic ore pulp screening device for beneficiation |
| CN105381945A (en) * | 2015-12-07 | 2016-03-09 | 关勇河 | Mineral processing ore pulp screening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081001 Termination date: 20111129 |