CN105600456A - Annular channel air inflow type pneumatic lifting device capable of preventing slurry outage and backflow - Google Patents
Annular channel air inflow type pneumatic lifting device capable of preventing slurry outage and backflow Download PDFInfo
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- CN105600456A CN105600456A CN201510796324.5A CN201510796324A CN105600456A CN 105600456 A CN105600456 A CN 105600456A CN 201510796324 A CN201510796324 A CN 201510796324A CN 105600456 A CN105600456 A CN 105600456A
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- lifting device
- riser tubing
- air admission
- groove
- refluxes
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Abstract
The invention provides an annular channel air inflow type pneumatic lifting device capable of preventing slurry outage and backflow. The lifting device is connected to a lifting pipeline, an annular air inlet channel is formed in the lifting device and is communicated with the inside of the lifting pipeline, end caps are arranged at the tail ends of the lifting device, and air inlet holes are formed in the end caps. A sliding stopping plate groove is formed in the position, located above the annular air inlet channel, in the lifting pipeline, and a sliding stopping plate is inserted into the sliding stopping plate groove and vertically moves in the sliding stopping plate groove to open or close the annular air inlet channel, so that the annular air inlet channel is or is not communicated with the lifting pipeline. A groove is formed in the side, in contact with the lifting pipeline, of the sliding stopping plate and is matched with the lifting pipeline for sealing, a ridge arm is arranged at the position, connected to the lifting pipeline, of the upper end of the lifting device, and ventilating pipelines for communicating the annular air inlet channel with the groove formed in the sliding stopping plate are arranged in the ridge arm. The annular channel air inflow type pneumatic lifting device fixes an air inflow position to form central air inflow so as to form a better air-liquid-solid three-phase flow pattern and can also prevent slurry outage and backflow.
Description
Technical field
The present invention relates to a kind of strength lifting device, particularly a kind of can be anti-the circular passage air admission type strength lifting device that refluxes of slurry power-off.
Background technology
Airlift technology is by the suitable position of compressed air injecting lift pipeline, utilizes the pressure reduction causing inside and outside pipe to carry liquid or slurry. Compared with hydraulic hoisting, that airlift has is simple in structure, under water without any moving component, the advantage such as system wear is less, maintenance load is few, and in practical engineering application, operating cost is low, good reliability. Strength lifting device compact conformation, charging aperture discharging opening are roughly the same, and hoisting power is large, and the thousands of tons of that reaches per hour can worked under large immersion rate condition, to depth extraction mineral and silt and economical rationality arbitrarily under water. Its basic functional principle is to carry out material lifting under water by the pressure reduction that between the less gas-liquid-solid three-phase flow of density in feed pipe for mortar and Environmental Water, density contrast forms, and wherein the steady progression of three-phase flow is the key that improves the airlift efficiency under large immersion rate.
Airlift method has a wide range of applications field, generally under the operating mode of transport condition complexity, uses. For example, carry explosive or poisonous liquid in chemical industry, the water conservancy industry training of channel and harbour desilting, carry at mining industry oil gas water multiphase pipeline, the exploitation of deep ore Pipeline lift, the eliminating of soil stone and boring rock dust etc. when vertical shaft for mine is dug. The effect of airlift technology in marine resources development field is also more and more significant, is one of the ore deposit method of mainly raising of current oceanic multi-metal nodule exploitation. Along with the aggravation of energy crisis, the paces of development of resources have been stepped up in countries in the world. Therefore airlift technology is gathered around and is had broad application prospects.
The patent of invention (publication number: CN200880131226.8) of " deep-sea exploitation lifting device and Hoisting System " by name discloses the method and system of a kind of deep-sea exploitation, set forth whole theory and the actual flow process of deep-sea exploitation, but the concrete key point that does not propose to make improved efficiency. The application for a patent for invention number of by name " liquid method and device are adopted in a kind of gaslift ": 201210453381.X has proposed the auxiliary theory of adopting liquid of gaslift, but it is placed in airlift unit in pipeline, is unfavorable for dismounting and changes. The patent (China Patent No.: ZL200620200573.X) of " Cocentric tube gas-lifting operation tube " by name utilizes the existing general gas lift method of Cocentric tube gas-lifting operation tube solution can not bring into play the problem of low-pressure oil reservoir effect, but still take bottom inflow mode, cannot make efficiency be highly improved. In design concept of the present invention, apply the operation principle of above patent of invention. The major defect of existing strength lifting device is:
1, owing to being to be directly communicated with breather pipe by air compressor machine to enter riser tubing, cannot fix Inlet Position, whole air inlet lifting process plays pendulum;
2, due to single from bottom inflow, cannot obtain better three-phase flow flow pattern, the efficiency of airlift can not effectively be promoted;
3, the unshielded measure because compressed air outlet is directly exposed in riser, once there is emergency power-off, ore pulp refluxes and can produce huge water attack pressure, thereby hurts whole device air inlet link.
Summary of the invention
The present invention proposes a kind of can be anti-the circular passage air admission type strength lifting device that refluxes of slurry power-off, provide a kind of Inlet Position of can fixing to form air feeding in center to form better gas-liquid-solid three-phase flow flow pattern, also can prevent the strength lifting device that slurry power-off refluxes simultaneously.
Technical scheme of the present invention is achieved in that
A kind of can be anti-the circular passage air admission type strength lifting device that refluxes of slurry power-off, lifting device 6 is connected on riser tubing 1, described lifting device 6 inside are provided with an annular inlet passageway, described annular inlet passageway is communicated to riser tubing 1 inside, be provided with an end cap 8 at lifting device 6 ends, described end cap 8 is provided with air admission hole 7; In described riser tubing 1, be provided with a slide damper groove 3 in the position of described annular inlet passageway top, described slide damper groove 3 is assigned a slide damper 4, and described slide damper 4 moves up and down opening and closing of fault annular inlet passageway and whether is communicated to riser tubing 1 in slide damper groove 3; The side that described slide damper 4 contacts with riser tubing 1 is provided with groove, and sealing coincide between groove and riser tubing 1, the position that described lifting device 6 upper ends are connected to riser tubing 1 is provided with ridge arm 5, is provided with the breather line 9 that is communicated with annular inlet passageway and slide damper 4 upper grooves in described ridge arm 5.
Further, described air admission hole 7 has n, 3≤n≤6, and n pore is uniformly distributed around annular inlet passageway, and the center line of the circle that air admission hole surrounds and the center line of annular inlet passageway are positioned at same straight line.
Further, annular inlet passageway adopts part streams device, as nozzle ring, self-oscillation nozzle.
Further, the quantity of described breather line 9 is n, n=4, and breather line 9 is 25-30 ° with riser tubing 1 angle.
Further, the center line of described annular inlet passageway and riser tubing 1 angle are 45-75 °, channel width 1.8-6.0mm, passage length 7.0-50.0mm.
Further, the air inlet section of described lifting device 6 is positioned at the position of the non-pipeline bottommost of riser tubing 1.
Further, described lifting device 6 is threaded connection with riser tubing 1.
The beneficial effect that the present invention produces is: the present invention has applied ring device and coordinated pore to realize air feeding in center, after can making compressed air mix with ore pulp, be more tending towards riser tubing central area, friction between minimizing and tube wall, improve the service life of riser, with forming the three-phase flow flow pattern that is more conducive to lifting, to realize the lifting that airlift is applied to the efficiency of the exploitation under large immersion rate. The present invention is provided with slide damper simultaneously, in the time that not working, air compressor machine covers air inlet, in the time that air compressor machine starts to carry compressed air, slide damper is backed down, this airlift setting can prevent that the slurry in riser tubing from forming backflow and hurting whole Pneumatic lift system, be conducive to extend the replacement cycle of inlet duct, be also more convenient to clean and change.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is complete section structural representation view of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is Fig. 1 partial enlarged drawing;
Fig. 4 is that the A-A of Fig. 1 is to view.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Fig. 1～4 a kind of can be anti-the circular passage air admission type strength lifting device that refluxes of slurry power-off, lifting device 6 is connected on riser tubing 1, described lifting device 6 inside are provided with an annular inlet passageway, described annular inlet passageway is communicated to riser tubing 1 inside, be provided with an end cap 8 at lifting device 6 ends, described end cap 8 is provided with air admission hole 7; In described riser tubing 1, be provided with a slide damper groove 3 in the position of described annular inlet passageway top, described slide damper groove 3 is assigned a slide damper 4, and described slide damper 4 moves up and down opening and closing of fault annular inlet passageway and whether is communicated to riser tubing 1 in slide damper groove 3; The side that described slide damper 4 contacts with riser tubing 1 is provided with groove, and sealing coincide between groove and riser tubing 1, the position that described lifting device 6 upper ends are connected to riser tubing 1 is provided with ridge arm 5, is provided with the breather line 9 that is communicated with annular inlet passageway and slide damper 4 upper grooves in described ridge arm 5.
In the present embodiment, air admission hole 7 has n, 3≤n≤6, and n pore is uniformly distributed around annular inlet passageway, and the center line of the circle that air admission hole surrounds and the center line of annular inlet passageway are positioned at same straight line.
Further, annular inlet passageway adopts part streams device, as nozzle ring, self-oscillation nozzle.
Further, the quantity of described breather line 9 is n, n=4, and breather line 9 is 25-30 ° with riser tubing 1 angle; The center line of described annular inlet passageway and riser tubing 1 angle are 45-75 °, channel width 1.8-6.0mm, passage length 7.0-50.0mm. The air inlet section of described lifting device 6 is positioned at the position of the non-pipeline bottommost of riser tubing 1. Described lifting device 6 is threaded connection with riser tubing 1.
As shown in Figure 1, Figure 2 and Fig. 4, this device is provided with some ridge arms 5 for lifting device intensity, has breather line 9 to control the keying of slide damper in ridge arm, and the angle of ridge arm and riser tubing is 25-30 °, and the angle of annular inlet passageway and riser tubing is 45-75 °. The ring-shaped ventilation pipeline of lifting device is communicated with air compressor machine, pass into compressed air by air admission hole 7 and can form stable air feeding in center mode, this device is positioned at the riser tubing somewhere of traditional strength lifting device, and ore pulp enters with Compressed Gas and exchanges the three-phase flow that forms better flow pattern from bottom of device.
In the working chamber of pipeline shown in Fig. 1, compressed air enters after annular inlet passageway backs down slide damper 4 and sprays in pipeline with certain speed through air admission hole 7, produce strong momentum-exchange with liquid wherein, in gaslift head, form parital vacuum, the solid-liquid two-phase flow being inhaled into mixes in trunnion entrance and trunnion with high velocity air, carry out energy and quality transmission, the flow velocity of gas reduces, the solid-liquid thing speed of being inhaled increases gradually, form the gas-liquid-solid three-phase flow lighter than water, both speed is gradually consistent in trunnion exit. The pressure of fluid-mixing reduces to trunnion entrance section gradually at nozzle exit, increases gradually later, converts the kinetic energy of fluid-mixing to pressure energy carry along riser tubing 1 by anemostat. Because fluid-mixing density is less, under the effect of riser tubing 1 inside and outside differential pressure, fluid-mixing is with the streamed floating of bulk, in floating-upward process, pressure in bubbles reduces gradually, the diameter of bubble increases gradually, ascent rate is also accelerated gradually, thereby reduce the density of three-phase flow in whole riser 1, until riser 1 exports to sea platform. Drift, industrial chemicals, ore particle etc. carry out sorting with regard to being drawn into continuously ground like this.
In the present invention, compressed air is passed through pore 7 access equipments by air compressor machine, by breather line 9 jack-up slide dampers 3, in trunnion, there is strong momentum-exchange with liquid and form parital vacuum in compressed air, thereby bottom pipe sucks by midge body, after forming gas-liquid-solid three-phase flow, enter riser tubing, make deep-sea mineral rise to operations offshore platform. Once there is power-off or emergency, air compressor machine is quit work, slide damper 4 can slide into stroke beginning, covers whole air inlet, prevents that slurry from refluxing.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. can be anti-the circular passage air admission type strength lifting device that refluxes of slurry power-off, it is characterized in that:It is upper that lifting device (6) is connected to riser tubing (1), and described lifting device (6) inside is provided with an annular and entersGas passage, described annular inlet passageway is communicated to riser tubing (1) inside, at lifting device (6) endBe provided with an end cap (8), described end cap (8) is provided with air admission hole (7); Place in described riser tubing (1)Position in described annular inlet passageway top is provided with a slide damper groove (3), described slide damper groove (3)Assign a slide damper (4), described slide damper (4) moves up and down unlatching in slide damper groove (3)Or whether closed ring inlet channel is communicated to riser tubing (1); Described slide damper (4) and riser tubing(1) side of contact is provided with groove, and the sealing that coincide between groove and riser tubing (1), described liftingThe position that device (6) upper end is connected to riser tubing (1) is provided with ridge arm (5), in described ridge arm (5), establishesThere is the breather line (9) that is communicated with annular inlet passageway and slide damper (4) upper groove.
As claimed in claim 1 a kind of can be anti-the circular passage air admission type airlift that refluxes of slurry power-offDevice, is characterized in that, described air admission hole (7) has n, 3≤n≤6, and n pore is logical around annular air inletBeing uniformly distributed of road, the center line of the circle that air admission hole surrounds and the center line of annular inlet passageway are positioned at sameStraight line.
As claimed in claim 1 or 2 a kind of can be anti-the circular passage air admission type strength that refluxes of slurry power-offLifting device, is characterized in that, annular inlet passageway adopts part streams device, as nozzle ring, self-excitationVibration nozzle.
As claimed in claim 1 a kind of can be anti-the circular passage air admission type airlift that refluxes of slurry power-offDevice, is characterized in that, the quantity of described breather line (9) is n, n=4, breather line (9) withRiser tubing 1 angle is 25-30 °.
As claimed in claim 1 a kind of can be anti-the circular passage air admission type airlift that refluxes of slurry power-offDevice, is characterized in that, the center line of described annular inlet passageway and riser tubing (1) angle is 45-75 °,Channel width 1.8-6.0mm, passage length 7.0-50.0mm.
As claimed in claim 1 a kind of can be anti-the circular passage air admission type airlift that refluxes of slurry power-offDevice, is characterized in that, the air inlet section of described lifting device (6) is positioned at the non-pipeline of riser tubing (1)The position of bottommost.
As claimed in claim 1 a kind of can be anti-the circular passage air admission type airlift that refluxes of slurry power-offDevice, is characterized in that, described lifting device (6) is threaded connection with riser tubing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796324.5A CN105600456B (en) | 2015-11-18 | 2015-11-18 | It is a kind of can the power-off backflow of anti-slurry circular passage air admission type strength lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796324.5A CN105600456B (en) | 2015-11-18 | 2015-11-18 | It is a kind of can the power-off backflow of anti-slurry circular passage air admission type strength lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105600456A true CN105600456A (en) | 2016-05-25 |
| CN105600456B CN105600456B (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510796324.5A Expired - Fee Related CN105600456B (en) | 2015-11-18 | 2015-11-18 | It is a kind of can the power-off backflow of anti-slurry circular passage air admission type strength lifting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321204A (en) * | 2017-08-21 | 2017-11-07 | 上海久田汽车零部件制造有限公司 | Microbubble generator |
| CN111322279A (en) * | 2020-04-24 | 2020-06-23 | 湖南科技大学 | Pneumatic piston push type lift pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001010726A (en) * | 1999-06-30 | 2001-01-16 | Amano Corp | Powdery and granular material high-pressure transporting device |
| CN104150222A (en) * | 2014-06-30 | 2014-11-19 | 泰州市开发区源天机械设备有限公司 | Controllable wear-resistant powder air chute conveying device |
| CN104229482A (en) * | 2014-08-26 | 2014-12-24 | 济南麦哈勃冶金技术开发有限公司 | Automatic energy-saving pressurizing device for use in particle pipeline conveying |
| CN204280719U (en) * | 2014-11-26 | 2015-04-22 | 常州常衡德宇粉体集成系统有限公司 | Positive Pressure Transportation System row of conduits block apparatus |
-
2015
- 2015-11-18 CN CN201510796324.5A patent/CN105600456B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001010726A (en) * | 1999-06-30 | 2001-01-16 | Amano Corp | Powdery and granular material high-pressure transporting device |
| CN104150222A (en) * | 2014-06-30 | 2014-11-19 | 泰州市开发区源天机械设备有限公司 | Controllable wear-resistant powder air chute conveying device |
| CN104229482A (en) * | 2014-08-26 | 2014-12-24 | 济南麦哈勃冶金技术开发有限公司 | Automatic energy-saving pressurizing device for use in particle pipeline conveying |
| CN204280719U (en) * | 2014-11-26 | 2015-04-22 | 常州常衡德宇粉体集成系统有限公司 | Positive Pressure Transportation System row of conduits block apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321204A (en) * | 2017-08-21 | 2017-11-07 | 上海久田汽车零部件制造有限公司 | Microbubble generator |
| CN107321204B (en) * | 2017-08-21 | 2023-07-14 | 上海捷乔纳米科技有限公司 | Microbubble generator |
| CN111322279A (en) * | 2020-04-24 | 2020-06-23 | 湖南科技大学 | Pneumatic piston push type lift pump |
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| CN105600456B (en) | 2018-02-06 |
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