CN1004070B - Stone collector for negative-pressure pneumatic transportation - Google Patents
Stone collector for negative-pressure pneumatic transportation Download PDFInfo
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- CN1004070B CN1004070B CN86107464.5A CN86107464A CN1004070B CN 1004070 B CN1004070 B CN 1004070B CN 86107464 A CN86107464 A CN 86107464A CN 1004070 B CN1004070 B CN 1004070B
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- stone
- pipe
- casing
- stone collector
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Abstract
The present invention provides a stone collector for negative-pressure pneumatic conveyance, and relates to a pneumatic pipeline conveyer. The stone collector of the present invention adopts a pneumatic conveying form (namely attraction type conveyance), a rotating suction nozzle in a reasonable shape is designed, a bending part of a material conveying pipe is made into a rectangular pipe with large size, a horizontal material separator is additionally provided with a vertical baffle, and the structure of an upper flashboard and a lower flashboard is arranged in a discharger. The stone collector of the present invention has the advantages of small energy consumption, wide application ranges and high efficiency, and the stone collector can be suitable for conveying stone granules, ores and light granular materials.
Description
The present invention relates to the strength pipeline conveyer.
In branch of industry, with powder and granule shape material a lot of as raw material or product, save labour power in order to make in loading and unloading, transportation, improve working conditions, adopt strength ducting form in recent years both at home and abroad widely.But existing Pneumatic conveyer only is to be applied to the material of rule of lightweight, fine and shape, as the conveying (seeing that (day) is ferocious wild military outstanding: " powder and granule shape material feedway ") of cereal, beans, cement, pulverized limestone, chemical fertilizer, plastic grain goods etc.And for example US3876258 is the aspiration-type compressed-air controlled device of bulk material, but its structure is numerous and diverse.Material Pneumatic conveyer for heavy, corase particles and the non-rule of shape does not appear in the newspapers.
The weight of heavy particles such as stone grain and ore is much bigger far beyond beans, chemical fertilizer etc., and its shape is very irregular, and its difference in size is also very greatly different, and general Pneumatic conveyer is inefficient.The objective of the invention is transportation problem for the stone grain that solves heavy, corase particles and the non-rule of shape and ore etc., make the raw material conveying in infrastructure project, harbour, water transport and the mine construction can realize mechanization, improve working conditions, raise the efficiency and economic benefit.
In the stone collector that negative pressure strength of the present invention is carried, can do upward movement and conveying in order to make heavy corase particles (stone grain, ore etc.), key is the suction nozzle of shape reasonable in design and the pressure of control air-flow, inlet air flow is fully quickened, cause the stone grain under kinetic pressure and barometric pressure (being negative pressure in the suction nozzle) effect, to enter conveying pipeline from the suction nozzle upward movement.And in the design of horizontal material separator, can separate by by gravity for making the heavy corase particles in the two phase flow (air and stone grain), and, in horizontal material separator, be provided with vertical baffle in order to collect less stone grain and chicken girt.For reduce stone collector in operation process the stone grain to the frequent collision of conveying pipeline wall and the wearing and tearing of the conveying pipeline wall that causes, the particularly wearing and tearing of the bent tube section of conveying pipeline, the bent tube section of conveying pipeline is designed to the rectangular tube of large-size in stone collector of the present invention, reduce the ascending velocity of stone grain, reduce its wearing and tearing to tube wall, and in part easy to wear except adopting the abrasion resistant material, also make the form that can change.Be provided with two flashboards up and down in the discharger of stone collector, rely on control system that two flashboard cyclic periodicity ground are opened and the sealing action, thereby realized carrying out under the vacuum source condition discharging, not only discharging is convenient, and has guaranteed the stable of whole stone collector vacuum work state.Because of whole stone collector is to be in work under negative pressure (vacuum) state, so the each several part of machine all must be carried out vacuum seal.
Each parts of the stone collector that the negative pressure strength is carried describe with reference to the accompanying drawings.
Figure one is the integral structure scheme drawing of the stone collector of negative pressure strength conveying.The stone collector that the negative pressure strength is carried is by rotating nozzle (2), and conveying pipeline (3), horizontal material separator (4), discharger (5) proliferation cyclone (6), freeing pipe (7), roots blower (8), silencing unit (9), the movable supporting body of stone collector (13) are formed.Wherein telescoping mechanism (1), luffing mechanism (10), rotating mechanism (11) are made the regulating mechanism that the three degree of freedom of top to bottom, left and right, front and rear moves for controlling conveying pipeline (3); Open and the usefulness of sealing by cyclic periodicity for the last lower flashboard in the control discharger (5) is done for control system (12); Silencing unit (9) is for reducing the noise design-calculated parts that stone collector produces in the running; Proliferation cyclone (6) by air inlet pipe, cylinder, reverse taper, formed by dirt bucket, radiation shield and freeing pipe, when containing grit, powder and enter dust exhaustor at a high speed in company with gas, under centrifugal action, powder is thrown to wall to be stood the dirt bucket and discharges, stone collector is placed on the movable supporting body (13), makes stone collector can adapt to variation and (14) coordination of stone grain heap of material position.The movable supporting body of stone collector can be made movable hull in harbour, uses on land such as mines and can make movable massive plate car.(15) be band conveyor.
Figure two is the scheme drawing of rotating nozzle.The design of rotating nozzle is the key of stone collector, and because of the stone grain is inhaled into conveying pipeline with air by rotating nozzle, therefore suction nozzle is the loader of aspiration-type feeding device comparatively speaking.For making the conveying of in conveying pipeline, rising of stone grain, the air-flow of suction nozzle should maintain certain speed, air from air volume regulator (21) by inner suction pipe (22) and outside slit annular region between the rotating casing (23) (for straight bobbin) enter, the size of air inlet air quantity is regulated by the inlet flow resistance that changes air volume regulator (21), the small part air-flow enters around the bottom of suction nozzle, for being mixed with air-flow, the stone grain forms dual-phase jet bundle with certain flow rate, the stone grain obtains the momentum setting in motion from jet beam, fully mixing formation stone grain stream with air-flow is transferred, so the gap between inner suction pipe (22) and the outer rotating casing (23) should be selected appropriately, and the bottom of inner suction pipe is made the loudspeaker with certain angle and is dehisced, the bottom of inner suction pipe is mounted to the bottom of outer rotating casing and maintains certain height difference d, make the gap of internal and external casing form best torus section, improve attraction efficient and even acceleration of air-flow entered.Stone collector of the present invention adopts the rotary type suction nozzle, promptly make outer rotating casing (23) make circular movement with respect to inner suction pipe (22) (fixing) by Worm wheel transmission mechanism (24), the rotating speed of outer rotating casing is 45～90 rev/mins, the bottom outside of outer rotating casing is equipped with two above well-distributed loose metal cuttves (25), loose metal cutter (25) in stone collector work is constantly entad loosening with the stone grain that outer rotating casing rotates around making, and auxiliary stone grain carries out conveying pipeline.
Figure three is the scheme drawing of conveying pipeline.The conveying pipeline of the stone collector that the negative pressure strength is carried be connected with rotating nozzle (2), horizontal material separator (4) (seeing figure one).Conveying pipeline is by straight tube (31), with straight tube horn interface (32), crooked rectangular tube (33), form with the horn interface (34) of horizontal material separator.Because the straight-tube portion of the dual-phase jet of stone grain and air from rotating nozzle along conveying pipeline rises and carries, to become horizontal motion then and enter horizontal material separator, stone grain and air-flow are to move along a curved path, this will make the stone grain often and duct wall bump and rub, thereby cause tube wall very easily to wear and tear.The two phase flow of stone grain and air is slowed down lower degree of wear to tube wall, but the too low stone grain that can not drive again of the flow velocity of two phase flow enters horizontal material separator, so choosing of the effect angle of the control of its flow velocity, air-flow and crooked rectangular tube tube wall should be appropriate.Therefore, do squarely, and enlarge its size at the curve of conveying pipeline, and in its part easy to wear except adopting the abrasion resistant material makes, also make the cover plate (35) that can convert.
Figure four is the scheme drawing of horizontal material separator.Horizontal material separator is made up of induction pipe (41), airflow outlet pipe (42), casing (43), building stones outlets (44) and vertical baffle (45).For the flow velocity that makes two phase flow more reduces in disconnector, induction pipe (41) is designed to the increaser form, and outlet pipe (42) is designed to the oblong pipe of convergent, and the casing of disconnector is made the big rectangular box (43) of convergent from top to bottom.The two phase flow that air-flow mixes with the stone grain enters from airflow inlet pipe (41) horizontal direction, because the long-pending sudden enlargement of container section, the flow velocity of two phase flow reduces suddenly, separated and vertical sedimentation under the gravity of stone grain, air-flow kinetic pressure and the fluid resistance effect.Can vertically be deposited to building stones and export (44) in order to make less stone grain be difficult for leaping outlet and medium stone grain with air-flow, minimizing is to the bump of casing rear wall, vertical plate washer (45) is set in horizontal material separator, plate washer is installed in the side of casing near air stream outlet, on the optimum position of choosing, and its height should be able to shelter from the height of air stream outlet slot, just can reach and make light gravelstone grain and air separation sedimentation effectively, and the top of plate washer is made up of double layer material, to increase its impact resistant capability.
Figure five is the scheme drawing of discharger.The effect of discharger is the building stones in the horizontal glassware to be discharged by band conveyor carry and transhipment.Because the top of discharger is connected and interior logical negative pressure source of the gas with horizontal material separator, bottom discharger mouth (54) is again a barometric pressure, can draught head occur and cause the stone grain can't the sedimentation discharge by its deadweight, thus the phenomenon of delay.Therefore, in the discharger of stone collector of the present invention, adopt the design of double-deck gate.The control system of forming by electronic time programming controller, two position four-way solenoid valves and actuator cylinder (53), tail gates (51) and (52) can be opened and sealing on repetition period ground, promptly when upper lock gate (51) is opened, tail gates (52) sealing, only making, grain drops in the dumper body (55) by deadweight; When upper lock gate (51) sealed, tail gates (52) were opened, and building stones drop on the belt of band conveyor (15), have so both made the sedimentation successfully of stone grain, keep the vacuum state of stone collector again, reduced the living load of stone collector.
The technical performance index of the stone collector that negative pressure strength of the present invention is carried is as follows:
1. mode of movement: the negative-pressure air-flow aspiration-type is carried;
2. stone grain character dimension D s(stone grain character dimension D s is defined as: Ds=Vs/Fs, and Vs is long-pending for the stone plastochondria, Fs is a stone grain windward side area); 30 millimeters, maximum can reach 50 millimeters;
3. carry the height H of stone grain: 8 meters;
4. the proportion of stone grain: 2.7 tons/meter
3
5. the maximum stone amount of inhaling: 35 tons/hour (comprising the time of bringing down stocks)
45 tons/hour (not comprising the time of bringing down stocks);
6. the air-flow velocity of conveying pipeline: 54 meter per seconds;
7. air flow rate: 3000 meters
3/ hour;
8. power power: 40 kilowatts
According to data (thermal technology of Beijing College of Iron and Steel Technology, the compiling of hydraulics teaching and research group, " Pneumatic conveyer ", People's Transportation Press shows 7-5 in publishing the 222nd page in 1974) the Japanese aspiration-type Pneumatic conveyer that provides, when carrying 100 meters of wheats, 30 tons/hour of operational throughpuies; Power power is 75 kilowatts, and the stone collector that negative pressure strength of the present invention is carried is when carrying 120 meters of stone grains 35 tons/hour (comprising the time of bringing down stocks), and its power power is 60 kilowatts (the power power that comprise belt feeder).Consume power power from defeated tonnage stone grain, it is 2.5 kilowatts that the aspiration-type of Japan carries the wheat device to carry the power power of wheat consumption per ton, and the stone collector that negative pressure strength of the present invention is carried, the power power of carrying stone grain per ton to be consumed is 1.714 kilowatts.
The stone collector that negative pressure strength of the present invention is carried is used for the conveying of heavier feeds such as the stone grain in infrastructure project, harbour, mine etc. and mine, goes for little light granular conveying such as cereal, beans, chemical fertilizer, particle plastics for stone collector of the present invention as long as suitably regulate the airshed of roots blower.Stone collector of the present invention has the advantages that energy consumption is little, applied widely, efficient is high.
Claims (3)
1, a kind of by rotating nozzle (2), conveying pipeline (3), material separator (4), discharge duct (5), band conveyor (15), the stone collector that the negative pressure strength that supporting body (11) is formed is carried, the outer rotating casing (23) that it is characterized in that rotating nozzle (2) is straight bobbin formula, make the bottom of inner suction pipe (22) has the tubaeform of certain angle, it is poor that the bottom of bottom and outer rotating casing maintains certain height, form best annular air-flow path between inner and outer pipes, outer rotating casing makes it rotate as circumference relative to inner suction pipe by Worm wheel transmission mechanism (24), air volume regulator (21) is arranged on the outer rotating casing, and loose metal cutter (25) is installed in the bottom outside of outer rotating casing symmetrically.
2, stone collector as claimed in claim 1, conveying pipeline (3) is made up of straight tube (31), horn interface (32), (34), crooked rectangular tube (33), it is characterized in that crooked rectangular tube (33) is crooked square pipe; Its line of centers is a curve, and its radius of curvature and curve arc long degree are chosen for optimum value.The size of crooked rectangular tube is bigger than straight tube (31), and the cover plate (35) that can convert is arranged above it.
3, stone collector as claimed in claim 1, material separator (4) is made up of induction pipe (41), airflow outlet pipe (42), casing (43), building stones outlets (44), it is characterized by induction pipe (41) and is the increaser shape.Outlet pipe (42) is a convergent oblong pipe, casing (43) is the big microscler case of convergent from bottom to top, vertical plate washer (45) is housed in the casing, plate washer is installed in the side of casing near air stream outlet, on the optimum position of choosing, the height of baffle plate surpasses a certain numerical value of height of air stream outlet oblong pipe; Its top is made up of double layer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86107464.5A CN1004070B (en) | 1986-11-07 | 1986-11-07 | Stone collector for negative-pressure pneumatic transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86107464.5A CN1004070B (en) | 1986-11-07 | 1986-11-07 | Stone collector for negative-pressure pneumatic transportation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86107464A CN86107464A (en) | 1988-06-29 |
| CN1004070B true CN1004070B (en) | 1989-05-03 |
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ID=4803572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86107464.5A Expired CN1004070B (en) | 1986-11-07 | 1986-11-07 | Stone collector for negative-pressure pneumatic transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004070B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443490C (en) * | 2005-09-23 | 2008-12-17 | 四川省乐山市福华通达农药科技有限公司 | Process for preparing glyphosate |
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| CN102642726B (en) * | 2012-04-12 | 2015-11-04 | 北京国电富通科技发展有限责任公司 | A kind of direct entrucking boat system of long distance Geldart-D particle of loose unpacked material |
| CN103159032B (en) * | 2013-02-21 | 2015-10-28 | 江苏浦士达环保科技有限公司 | Flow delivery systems |
| CN104030043A (en) * | 2014-06-25 | 2014-09-10 | 中铁上海工程局集团有限公司 | Air compressor type large-diameter gravel pump |
| CN107136438B (en) * | 2017-05-25 | 2020-05-12 | 巫溪县海丰水产养殖有限公司 | Efficient giant salamander skin mucus extraction element |
| CN108529238A (en) * | 2018-04-13 | 2018-09-14 | 无锡市科丰自控设备有限公司 | Rotary suction device |
| CN113597877B (en) * | 2021-07-12 | 2022-09-30 | 农业农村部南京农业机械化研究所 | Pneumatic conveying type edible bean combine harvester |
-
1986
- 1986-11-07 CN CN86107464.5A patent/CN1004070B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443490C (en) * | 2005-09-23 | 2008-12-17 | 四川省乐山市福华通达农药科技有限公司 | Process for preparing glyphosate |
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| Publication number | Publication date |
|---|---|
| CN86107464A (en) | 1988-06-29 |
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