CN201391476Y - Abrasion automatic compensation sealing and autopneumatolysis device of impeller-type high-pressure pneumatic conveying pump - Google Patents
Abrasion automatic compensation sealing and autopneumatolysis device of impeller-type high-pressure pneumatic conveying pump Download PDFInfo
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- CN201391476Y CN201391476Y CN200820158784U CN200820158784U CN201391476Y CN 201391476 Y CN201391476 Y CN 201391476Y CN 200820158784 U CN200820158784 U CN 200820158784U CN 200820158784 U CN200820158784 U CN 200820158784U CN 201391476 Y CN201391476 Y CN 201391476Y
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Abstract
The utility model relates to an abrasion automatic compensation sealing and autopneumatolysis device of an impeller-type high-pressure pneumatic conveying pump, which comprises a stander, and is characterized in that the stander is provided with a motor, a speed reducer and a reducer pipe assembly, wherein one end of a spraying pipe is connected with a pressure ventilation pipe, one end of the spraying pipe, which is provided with a nozzle, extends into an inner cavity of the reducer pipe assembly, the cavity forms a material-gas mixing chamber, a pump body is installed on the reducer pipe assembly, the top end of the pump body is of a feed opening, and a gasification nozzle on the lower part of the pump body is just opposite to the inner cavity of the reducer pipe assembly; and a transmission shaft of the material-gas mixing chamber is connected with a rotation shaft of the pump body through a coupling joint. The device is provided with a sealing device having abrasion gap automatic compensation function, so that the abrasion automatic compensation sealing and autopneumatolysis device solves the problem that the conventional rotation feeder only can perform the low-pressure short-distance dilute-phase conveying, and can be applied to the novel impeller-type high-pressure conveying pump which utilizes the high-pressure gas source to perform the large-flow-rate long-distance conveying of materials.
Description
Technical field
The utility model relates to the sealing and the autopneumatolysis device of the continuous transfer pump of a kind of impeller type high pressure strength, particularly can form the wear automatic-compensation sealing and the autopneumatolysis device of the impeller type high pressure strength transfer pump of reliable sealing.
Background technique
Using the wider strength conveying transmitter installation of growing apart from the larger capacity conveying now is various types of big or small storehouses pumps.The storehouse pump exists to be carried discontinuously, unstable, and the shortcoming of system layout complexity causes its inefficiency, and energy consumption is higher.According to powder technology research institute of Xi'an University of Architecture and Technology data, belong to single storehouse pump of intermittent delivery, efficient has only 50% of continuous conveying equipment, and energy consumption is high by 35%; Belong to two storehouses pump of semicontinuous conveying, efficient is 75% of continuous conveying equipment, and energy consumption is high by 13%.
The existing a kind of distribution equipment that can carry continuously is a screw transport pump, and the violent on a large scale friction of integrity can take place when operation for it, and power consumpiton is very big, and the critical piece wearing and tearing are very fast, begun progressively to withdraw from the market.Another kind of distribution equipment with continuous conveying capacity is the low pressure rotary feeder, and this kind equipment does not possess inner high sealing performance, can not use high-pressure air source, therefore can only do short-range dilute phase and carry, and the conveying energy consumption height, wearing and tearing are very fast.
In the workflow of this kind equipment, the mixing chamber of impeller bottom is a hyperbaric environment, and the material feeding mouth of upper impeller is an atmospheric pressure environment.The upper and lower of impeller exists pressure reduction.At this moment just require to carry out between the upper and lower of impeller strict sealing; make isolated up and down; otherwise upwards gush in the slit that the pressurized gas of bottom and powdered granule can see through between impeller and the pump case, stops material to fall, and can cause the quick wearing and tearing of blade and casing.Therefore in the strict seal performance that must have between impeller and the housing under the dynamic condition, could use pressurized gas to carry.And the high gas of working pressure is to carry out big flow, long necessary and sufficient condition apart from mass transport.Though turn in one's mind in the rotary feeder that has is provided with but still the unable slit that produces of making up at random.If lack reliable sealing, the bottom pressurized gas have two to the path that the top atmospheric area leaks, one be from impeller radially along the edge of blade and the slot leakage between the housing (liner), another is from the slot leakage between impeller end panel and the pump case.
Summary of the invention
The utility model has designed a kind of wear automatic-compensation sealing and autopneumatolysis device of impeller type high pressure strength transfer pump, and it can make the reliable dynamic seal (packing) of the inner formation of rotary feeder.This sealing function has solved rotary feeder and high-pressure air source is carried out supporting problem, low pressure rotation feed gas is changed for carrying out big flow, long distance, high efficiency, the continuous high-pressure impeller pump of carrying of low energy consumption to material, its internal friction alleviates greatly than screw transport pump, has solved the subject matter that storehouse pump, volute pump, rotary feeder exist.This pump also possesses the automatic gasifying function, to reduce the resistance that material starts and plugging danger prevent the start up period.
It comprises frame 50, motor and speed reducer 90 and reducer pipe combination 60 is installed on this frame 50, one termination pressure ventilation pipe 80 of jet pipe 70, cavity forms material gas mixing chamber 40, one end of jet pipe 70 band nozzles stretches into the inner chamber of material gas mixing chamber 40, the pump housing 30 is installed in the reducer pipe combination 60, and the top of this pump housing 30 is a material feeding mouth 100, and below gasification valve 25 faces the inner chamber of reducer pipe combination 60; The transmission shaft of material gas mixing chamber 40 links to each other with the rotating shaft of the pump housing 30 by shaft coupling 7.The blade of the impeller 27 of the pump housing 30 is separated out the little storehouse of a plurality of impellers, and the pump housing 30 comprises both sides dynamic seal (packing) mechanism and end face seal mechanism, and below, the little storehouse of the impeller of the pump housing 30 is equipped with gasification valve 25.
Dynamic seal (packing) mechanism is the seal arrangement that stops radial leakage, it is in the pump housing 30 both sides, on the pump housing 30 both sides shells, respectively open a cavity, place a sealed compartment in each cavity, the structure member ecto-entad of sealed compartment is side cover plate 23, measurement bolt 22, elastic element 16, push pedal 17, sealing bearing bush 18 successively; Side cover plate 23 is somes that side cover plate forms shell, for having the air chamber of certain space, one group of solid elastic element is housed also in the air chamber between side cover plate and the push pedal, one of elastic element is a side cover plate 23, one is push pedal 17, a pressurized gas joint 20 respectively is housed on the side cover plate 23;
Sealing bearing bush 18 is composited by rubber layer and wear-resistant material layer, and the wearing layer surface is lonely shape, closely contacts with the blade edge of impeller, does not stay the slit.
Described end face seal mechanism stops the pump two ends to produce the sealing mechanism that leaks, its ecto-entad is spring pressuring ring 1, big end cap 2 successively, measures bolt 10, end face spring 12, hold-down ring 14 and end face sealing ring 15, big end cap 2 is the somes that form the pump housing 30, be end face air chamber 13 between spring pressuring ring 1 and the hold-down ring 14, end face spring 12 is installed along circumference; On the big end cap 2 the end face air chamber is housed and presses wind joint 24, the adjustable compression gas that imports, in end face air chamber 13, form composite elastics pressurization compensating units jointly with end face spring 12, pressure points to hold-down ring, be delivered to seal ring again, seal ring is closely contacted with impeller two ends panel along the circumference anchor ring, stop the leakage of gas or mixed flow.Also be equipped with on the big end cap 2 and survey the extent of deterioration of bolt 10 with timely grasp seal ring.
The pump housing 30 also is provided with a relief tube 26.
The guarantee of above-mentioned two place's strict seal has been arranged, and powder just can be exempted the upwards active force of lower gas pressure, successfully falls into the material gas mixing chamber of bottom from the little storehouse of impeller.The top of material gas mixing chamber is provided with the powder that the gasification valve sprays to the whereabouts near the impeller place, and powder is tentatively gasified, and the gasification powder can reduce at ducted transporting resistance and prevent plugging.The gas of ejection also can purge the material in the little storehouse of impeller clean, avoids material to be subjected to the retardance of wheel rotation inertia and remains in and can't draw off in the little storehouse of impeller, causes the transfer efficiency of pump to reduce.
Description of drawings
Fig. 1 is a Facad structure schematic representation of the present utility model;
Fig. 2 is a pump housing orthogonal view;
Fig. 3 is a pump housing flat sectional drawing;
Fig. 4 is a pump housing cross-section profile.
Wherein: 30, the pump housing, 40, material gas mixing chamber, 90, motor and speed reducer, 50, frame, 60, the reducer pipe combination, 70, jet pipe, 80, pressure ventilation pipe, 25, the gasification valve, 7, shaft coupling, 100, material feeding mouth
1, seal ring 6, key before spring pressuring ring 2, big end cap 3, impeller end panel 4, bearing 5, the bearing, 8, bearing air cover bolt 9, bearing air cover 10, survey seal ring 12, end face spring 13, end face air chamber 14, hold-down ring 15, end face sealing ring 16, spring 17, push pedal 18, sealing bearing bush 19, main shaft 20, pressure ventilation pipe joint 21, air chamber 22 behind bolt hole 11, the bearing, survey bolt hole 23, side end cap 24, end face air chamber press wind joint 25, gasification valve 26, relief tube 27, impeller 28, the little storehouse 29 of impeller, bearing stifle
Embodiment
Shown in Fig. 1-4, it comprises frame 50, motor and speed reducer 90 and reducer pipe combination 60 is installed on this frame 50, one termination pressure ventilation pipe 80 of jet pipe 70, one end of jet pipe 70 band nozzles stretches into the inner chamber of reducer pipe combination 60, and cavity forms material gas mixing chamber 40, and the pump housing 30 is installed in the reducer pipe combination 60, the top of this pump housing 30 is a material feeding mouth 100, and below gasification valve 25 faces the inner chamber of reducer pipe combination 60; The transmission shaft of material gas mixing chamber 40 links to each other with the rotating shaft of the pump housing 30 by shaft coupling 7.The blade of the impeller 27 of the pump housing 30 is separated out the little storehouse of a plurality of impellers, and the pump housing 30 comprises both sides dynamic seal (packing) mechanism and end face seal mechanism, and below, the little storehouse of the impeller of the pump housing 30 is equipped with gasification valve 25.
The utility model is provided with two and overlaps targetedly seal arrangement so that two leakage paths are carried out effective shutoff.One cover is the seal arrangement that stops radial leakage.This device is in the pump housing 30 both sides, on the pump housing 30 both sides shells, respectively open a cavity, place a sealed compartment in each cavity, the structure member ecto-entad of sealed compartment is side cover plate 23 (side cover plate forms the some of shell), measurement bolt 22, elastic element 16, push pedal 17, sealing bearing bush 18 successively.Be air chamber between side cover plate and the push pedal, have certain space.One group of spiral spring also is housed in the air chamber.One on spring is that 23, one of side cover plates are push pedal 17.A pressurized gas joint 20 respectively is housed on the side cover plate 23, the gas that mixes up pressure is imported air chamber.Sealing bearing bush 18 is composited by rubber layer and wear-resistant material layer, and the wearing layer surface is lonely shape, closely contacts with the blade edge of impeller, does not stay the slit.The pressurized gas of air chamber and spring assembly become compound elastic force auto compensation unit.It first can make sealing bearing bush and impeller keep closely contacting dynamically; Second wearing layer that can in time make up automatically because of blade edge and sealing bearing bush wears away the slit that is occurred, the performance dynamic compensation function; The 3rd it have good stretchability at random, can prevent to press from both sides dead impeller.In order in time to grasp the extent of deterioration of sealing bearing bush wearing layer, also on side cover plate 23, be equipped with two and survey bolt 22.Another set of is to stop the pump two ends to produce the sealing mechanism that leaks.Its component parts ecto-entad is spring pressuring ring 1, big end cap 2 (it forms the some of pump) successively, measures bolt 10, end face spring 12, hold-down ring 14 and end face sealing ring 15.Be end face air chamber 13 between spring pressuring ring 1 and the hold-down ring 14, end face spring 12 is installed along circumference.On the big end cap 2 the end face air chamber is housed and presses wind joint 24, the adjustable compression gas that imports, in end face air chamber 13, form composite elastics pressurization compensating units jointly with end face spring 12, pressure points to hold-down ring, be delivered to seal ring again, seal ring is closely contacted with impeller two ends panel along the circumference anchor ring, stop the leakage of gas or mixed flow.Also be equipped with on the big end cap 2 and survey the extent of deterioration of bolt 10 with timely grasp seal ring.Seal ring is made by high-abrasive material.
The pump housing 30 also is provided with a relief tube 26.Shaft coupling 7 joints include key 6, main shaft 19 links to each other with shaft coupling 7.The bearing 4 at impeller 27 two ends has seal ring 11,5 to seal, and after the operation of experience certain hour, powder more easily sees through seal ring 11 and enters bearing.Bearing air cover 9 is fixed on the pump housing 30 by bearing air cover bolt 8, is connected to pressure ventilation pipe joint 20 by bearing air cover 9 and bearing stifle 29, compressed gas is imported the reliability that improves its sealing in the bearing bore.
On the big end cap another one is installed also and presses the wind joint, the cavity that is made of big end cap and impeller end panel is led in its outlet.
Pump housing both sides and two end part are provided with sealing bearing bush and the seal ring that the high abrasion sealing material is made, sealing bearing bush and seal ring are compensated the abrasion slit that produces between seal element and the impeller blade by the automatic compensation mechanism support of composite elastic automatically. and its degree of compensation can be surveyed by surveying bolt. and the elasticity compensation mechanism also can prevent that impeller from being pressed from both sides dead stall.Valve between the mixing chamber gasifies to the material that is about to begin to carry in advance and the little storehouse of impeller is cleaned.Sealing bearing bush is the composite component that is made of rubber layer and abrasive sealing materials layer, also can be the composite component that the multilayer material layer constitutes.Rubber layer can substitute with other elastomeric layer, and the material of wear-resistant seal layer can be by flexibility, and flexible firm partially, the high-abrasive material of the soft partially rigidity of rigidity forms.End face sealing ring can be made or single high-abrasive material is made by composite material.High-abrasive material can be flexibility, and is flexible firm partially, the soft partially rigid material of rigidity.Because the support of the compensation mechanism of high elasticity is arranged, and sealing bearing bush also can be made by single high-abrasive material, sealing compound is adopted in peripheral slit, the sealing of sealing materials such as seal gease.
Composite elastic slit compensation mechanism is made of pressurized gas, solid elastic element and other annex.Pressurized gas is adjustable or non-adjustable.The solid elastic element can be that spring or other have the components and parts of elastic force.Quantity one also can be a plurality of.Other annex cooperates the elastic force cell operation, and annex quantity, profile and effect can have multiple design.The container that holds pressurized gas can be that air chamber also can be other form container, as: capsule, bag, bag etc.Its pressure medium also can be other fluids.The Flexible element of composite elastic compensation mechanism can be simplified to single Flexible element, promptly single compressed fluid unit or solid elastic unit.The detection bolt of composite elastic compensation mechanism is artificial prospecting tools, also the detection means of other kinds such as machinery, electronics or physics.The impeller below is provided with the gasification valve, and its quantity can be zero, one or more; Have a plurality of directions to select, direction can have multidirectional or unidirectional.The valve gas pressure is adjustable or non-adjustable.The outlet of gasification valve is towards the little storehouse of impeller of impeller 27, and inlet links to each other with high-pressure air source by pneumatic tube.
The guarantee of above-mentioned two place's strict seal has been arranged, and powder just can be exempted the upwards active force of lower gas pressure, successfully falls into the material gas mixing chamber of bottom from the little storehouse of impeller.The top of material gas mixing chamber is provided with the powder that the gasification valve sprays to the whereabouts near the impeller place, and powder is tentatively gasified, and the gasification powder can reduce at ducted transporting resistance and prevent plugging.The gas of ejection also can purge the material in the little storehouse of impeller clean, avoids material to be subjected to the retardance of wheel rotation inertia and remains in and can't draw off in the little storehouse of impeller, causes the transfer efficiency of pump to reduce.Under the guarantee of above two sealing mechanisms, just can not occur successfully entering material gas mixing chamber 40 from the material that focuses on whereabouts, impeller 27 belows because of the pressurized gas in the material gas mixing chamber 40 upwards leak the existing picture that is obstructed.The band pressure gas stream of the 25 li ejections of gasification valve above material gas mixing chamber 40 can enter material gas mixing chamber 40 with material gasification and acceleration rapidly, and the little storehouse 28 of the impeller of loaded material is also purged clean.Preliminary gasification materiel in material gas mixing chamber 40, the blowing of the high pressure draught that ejects by the jet pipe 70 that is connected to source of the gas high-pressure air hose 80 by thorough fluidization, and be pushed to reducer pipe combination 60, after the reducing pressurization, enter carrier pipe and be transported to the destination.
Wherein: conveying material enters the little storehouse 28 of impeller of impeller 27 by pump housing material feeding mouth, and impeller 27 drives rotation (maximum 33rpm/min) at a slow speed by miniature motor (2.2-4KW) and cycloidal-pin wheel retarder 90.Material is driven to the pump housing 30 Lower Halves to fall with deadweight by impeller 27.Import the adjustable compression gas and the pressing spring 16 of side sealing air chamber 21 by the pump housing 30 both sides pressure ventilation pipe joints 20, push pedal 17 is exerted pressure and pressure is transmitted to sealing bearing bush 18, sealing bearing bush 18 is closely contacted with the blade edge of impeller 27, formed the isolated pump housing dynamic seal (packing) mechanism of two parts up and down.Because adjustable compression gas and spring 16 have favorable elasticity, guarantee that impeller 27 can rotate freely under the dynamic seal (packing) condition.Pressurized gas is provided by gas source, through reduction valve or pressure governor pressure is adjusted to suitable size, after the running check pressure is fixed.Through continuous service, sealing bearing bush 18 all can wear and tear to some extent with the blade edge of impeller 27, calm the anger this moment and spring 16 make a concerted effort dynamically the slit that occurs because of wearing and tearing between sealing tile-roofed house 18 and blade is made up, make sealing bearing bush 18 all the time with blade edge keep in touch closely, keep good sealed environment.The specification of spring 16 and quantity are determined by test.Sealing bearing bush 18 is composite parts of rubber layer and abrasive sealing materials layer, generally adds heat bonding by sulfuration, and bonding is reliable.Selecting for use by concrete object conveyor of abrasive sealing materials, the working system of conveying are decided (being intermittent delivery or conveying continuously).Rubber layer is made the buffer layer of wearing layer and gap around the sealing bearing bush 18 is sealed.
In order to grasp the degree of wear of sealing bearing bush 18, be in operation and can survey understanding to be placed in the detection bolt of surveying in the screw 22 at any time, place on record.High pressure draught enters the material of expecting the gas mixing chamber through the nozzle directive of jet pipe, and material enters carrier pipe along the high pressure draught flow direction through reducer pipe and is transported to the destination.Impeller is directly driven by miniature motor and speed reducer.
This novel impeller pump can dock the low speed transporting system that forms big flow, long distance with mode of movements such as fluidization concentrated phase boosting pipe-line system, two sleeve pipe turbulent flow concentrated phase system, low speed material bolt concentrated phase assist systems.The system layout of wing pump is very simple, but the single pump system only with button complete operation just, many pumps and remote system only need simple PLC control.The also available low-pressure gas source of this novel impeller pump is carried out the short distance dilute phase of material and is carried.
It has the seal arrangement of wearing and tearing slit automatic compensation function, solved at one stroke conventional rotary feeder and can only carry out the present situation that low pressure short distance dilute phase is carried, become and to use high-pressure air source that material is made the novel impeller formula high-pressure delivery pump that the long distance of big flow is carried.Its continuous mode of movement and simple system layout have solved too complicated problems of the inefficient high energy consumption of storehouse pump and corollary system, high power consumption of spiral transfer pump and huge wear problem have been solved, the continuous transfer pump of novel impeller formula provides effective and simple mode of movement for relevant industry, for they reduce input, reduce and carry cost that a new selection is provided.
Claims (6)
1, sealing of a kind of wear automatic-compensation of impeller type high pressure strength transfer pump and autopneumatolysis device, it comprises frame (50), motor and speed reducer (90) and reducer pipe combination (60) is installed on the described frame (50), one termination pressure ventilation pipe (80) of jet pipe (70), cavity forms material gas mixing chamber (40), one end of jet pipe (70) band nozzle stretches into the inner chamber of material gas mixing chamber (40), and motor links to each other by the rotating shaft of shaft coupling (7) with the pump housing (30) with the transmission shaft of speed reducer (90); The pump housing (30) is installed in material gas mixing chamber (40) top, the top of this pump housing (30) is material feeding mouth (100), the blade of the impeller (27) of the pump housing (30) is separated out the little storehouse of a plurality of impellers, it is characterized in that the described pump housing (30) comprises both sides dynamic seal (packing) mechanism and end face seal mechanism, below, the little storehouse of the impeller of the pump housing (30) is equipped with gasification valve (25).
2, sealing of the wear automatic-compensation of a kind of impeller type high pressure strength transfer pump as claimed in claim 1 and autopneumatolysis device, it is characterized in that described dynamic seal (packing) mechanism is the seal arrangement that stops radial leakage, it is in the pump housing (30) both sides, on the shell of the pump housing (30) both sides, respectively open a cavity, place a sealed compartment in each cavity, the structure member ecto-entad of sealed compartment is side cover plate (23), measurement bolt (22), elastic element (16), push pedal (17), sealing bearing bush (18) successively; Side cover plate (23) is the some that side cover plate forms shell, it between side cover plate and the push pedal air chamber with certain space, one group of solid elastic element also is housed in the air chamber, one of this elastic element is side cover plate (23), one is push pedal (17), a pressurized gas joint (20) respectively is housed on the side cover plate (23); The pump housing (30) also is provided with a relief tube (26).
3, sealing of the wear automatic-compensation of a kind of impeller type high pressure strength transfer pump as claimed in claim 2 and autopneumatolysis device is characterized in that described sealing bearing bush (18) closely contacts with the blade edge of impeller (27), does not stay the slit.
4, sealing of the wear automatic-compensation of a kind of impeller type high pressure strength transfer pump as claimed in claim 2 and autopneumatolysis device, it is characterized in that described end face seal mechanism stops the pump two ends to produce the sealing mechanism that leaks, its ecto-entad is spring pressuring ring (1), big end cap (2) successively, measures bolt (10), end face spring (12), hold-down ring (14) and end face sealing ring (15), big end cap (2) is the some that forms the pump housing (30), be end face air chamber (13) between spring pressuring ring (1) and the hold-down ring (14), end face spring (12) is installed along circumference; On the big end cap (2) the end face air chamber is housed and presses wind joint (24), the adjustable compression gas that imports, in end face air chamber (13), form composite elastic pressurization compensating unit jointly with end face spring (12), pressure points to hold-down ring, be delivered to seal ring again, seal ring is closely contacted with impeller two ends panel along the circumference anchor ring, stop the leakage of gas or mixed flow, also be equipped with on the big end cap (2) and survey the extent of deterioration of bolt (10) with timely grasp seal ring.
5, as the wear automatic-compensation sealing and the autopneumatolysis device of a kind of impeller type high pressure strength transfer pump of claim 1 or 2, it is characterized in that the impeller little storehouse of the outlet of described gasification valve (25) towards impeller (27), inlet links to each other with high-pressure air source by pneumatic tube.
6, sealing of the wear automatic-compensation of a kind of impeller type high pressure strength transfer pump as claimed in claim 4 and autopneumatolysis device, it is characterized in that also being equipped with on the described big end cap (2) another one and press the wind joint, the cavity that is made of big end cap (2) and impeller end panel is led in its outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820158784U CN201391476Y (en) | 2008-10-16 | 2008-10-16 | Abrasion automatic compensation sealing and autopneumatolysis device of impeller-type high-pressure pneumatic conveying pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820158784U CN201391476Y (en) | 2008-10-16 | 2008-10-16 | Abrasion automatic compensation sealing and autopneumatolysis device of impeller-type high-pressure pneumatic conveying pump |
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| Publication Number | Publication Date |
|---|---|
| CN201391476Y true CN201391476Y (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820158784U Expired - Fee Related CN201391476Y (en) | 2008-10-16 | 2008-10-16 | Abrasion automatic compensation sealing and autopneumatolysis device of impeller-type high-pressure pneumatic conveying pump |
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| CN (1) | CN201391476Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536313A (en) * | 2012-02-15 | 2012-07-04 | 新汶矿业集团有限责任公司协庄煤矿 | Gangue filling pneumatic conveying system |
| CN103287860A (en) * | 2013-06-21 | 2013-09-11 | 上海交通大学 | Rotary type microscale powder feeding device |
| CN103420097A (en) * | 2013-07-21 | 2013-12-04 | 哈尔滨电站设备成套设计研究所有限公司 | Dynamic compensation and sealing method for offset type feeder with peripheral end dynamically compensated and sealed |
| CN103964205A (en) * | 2014-04-30 | 2014-08-06 | 程辉 | Uninterrupted automatic batching and feeding pneumatic conveying injection pump |
| CN105016084A (en) * | 2014-04-21 | 2015-11-04 | 中煤科工集团武汉设计研究院有限公司 | High-pressure jet type pneumatic filling equipment |
| CN105202309A (en) * | 2014-06-24 | 2015-12-30 | 北大方正集团有限公司 | Pipeline stirring device and plasma chemical vapor deposition equipment |
| CN107630930A (en) * | 2017-11-01 | 2018-01-26 | 大连西力博机电设备科技有限公司 | The sealing of tailing wheel of bucket elevator drive bearing and seal-leak detection arrangement |
| CN111252556A (en) * | 2020-03-26 | 2020-06-09 | 江苏惟德智能工程技术有限公司 | Pneumatic conveying device with strong sealing performance |
| CN112644981A (en) * | 2020-12-18 | 2021-04-13 | 武汉宇格电力设备有限公司 | Self-lubricating piece, self-lubricating piece mounting structure and flexible feeder |
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2008
- 2008-10-16 CN CN200820158784U patent/CN201391476Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536313A (en) * | 2012-02-15 | 2012-07-04 | 新汶矿业集团有限责任公司协庄煤矿 | Gangue filling pneumatic conveying system |
| CN103287860A (en) * | 2013-06-21 | 2013-09-11 | 上海交通大学 | Rotary type microscale powder feeding device |
| CN103287860B (en) * | 2013-06-21 | 2016-02-17 | 上海交通大学 | Swinging trace dust feeder |
| CN103420097A (en) * | 2013-07-21 | 2013-12-04 | 哈尔滨电站设备成套设计研究所有限公司 | Dynamic compensation and sealing method for offset type feeder with peripheral end dynamically compensated and sealed |
| CN105016084A (en) * | 2014-04-21 | 2015-11-04 | 中煤科工集团武汉设计研究院有限公司 | High-pressure jet type pneumatic filling equipment |
| CN103964205A (en) * | 2014-04-30 | 2014-08-06 | 程辉 | Uninterrupted automatic batching and feeding pneumatic conveying injection pump |
| CN105202309A (en) * | 2014-06-24 | 2015-12-30 | 北大方正集团有限公司 | Pipeline stirring device and plasma chemical vapor deposition equipment |
| CN107630930A (en) * | 2017-11-01 | 2018-01-26 | 大连西力博机电设备科技有限公司 | The sealing of tailing wheel of bucket elevator drive bearing and seal-leak detection arrangement |
| CN107630930B (en) * | 2017-11-01 | 2023-04-18 | 大连广的科技有限公司 | Sealing and sealing leakage detection device for tail wheel transmission bearing of bucket elevator |
| CN111252556A (en) * | 2020-03-26 | 2020-06-09 | 江苏惟德智能工程技术有限公司 | Pneumatic conveying device with strong sealing performance |
| CN112644981A (en) * | 2020-12-18 | 2021-04-13 | 武汉宇格电力设备有限公司 | Self-lubricating piece, self-lubricating piece mounting structure and flexible feeder |
| CN112644981B (en) * | 2020-12-18 | 2023-05-26 | 武汉宇格电力设备有限公司 | Flexible feeder |
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