CN102874507B - Nozzle-contained solid material conveying method with intelligent anti-clogging function - Google Patents
Nozzle-contained solid material conveying method with intelligent anti-clogging function Download PDFInfo
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- CN102874507B CN102874507B CN201210205155.XA CN201210205155A CN102874507B CN 102874507 B CN102874507 B CN 102874507B CN 201210205155 A CN201210205155 A CN 201210205155A CN 102874507 B CN102874507 B CN 102874507B
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- blade
- blanking section
- nozzle
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- bottom blanking
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- 239000011343 solid material Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 8
- 239000003245 coal Substances 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 27
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention provides a solid material conveying method and adopts solid material conveying equipment. The equipment comprises at least one tapered hopper, wherein the tapered hopper comprises an upper part loading section and a lower part blanking section; blades are arranged in the lower part blanking section and fixed; a certain gap is formed between each blade and the lower part blanking section; the outer wall of the lower part blanking section is connected with a bearing transmission device which drives the lower part blanking section to rotate; the blades comprise nozzles which spray gas to the inner wall of the lower part blanking section; and flow measuring equipment is arranged at the outlet section of the lower part blanking section. When the flow measuring equipment measures that the flow rate falls to a certain value, the bearing transmission device is started in such a manner that only the bearing transmission device is started or the bearing transmission device and the nozzles of the blades are started at the same time. The method can improve anti-clogging efficiency and reduce energy consumption.
Description
Technical field
The invention belongs to solid material transportation art, be specifically related to a kind of solid material carrying method with intelligent block clearing and/or choke preventing function, particularly a kind of solid material carrying method when carrying along gravitational field with intelligent block clearing and/or choke preventing function.
Background technology
At present, in chemical industry, field of boilers, solid material conveying is very general process, and wherein the vertical transport of solid material is modal process.In general, along the solid material of gravitational field, carry in order to save energy, be all rely on gravity carry out solid material freely decline carry.Solid material load transfer device along gravitational field comprises at least one broach hopper, and this broach hopper comprises top material loading section and bottom blanking section.Although the outlet size of blanking section, much larger than the particle diameter of powder, still likely forms and builds bridge when the whole discharge downwards of solid material.This obstruction can cause the fault of load transfer device, and then has influence on the fault of whole system.The major cause resulting in blockage is such as having friction force between solid material and equipment inner wall, has friction force etc. between solid material.In order to prevent latch up phenomenon, corresponding block clearing and/or anti-block apparatus must be set in load transfer device.
For many years, in order to solve blockage problem, developed vibration or beaten the methods such as inwall, rotation scraping inwall, gas injection inwall.200810140442.0 proposed the equipment of rotary conic hopper stationary blade, 201020262144.1 proposed the fixedly equipment of broach hopper of rotating blade, although these two kinds of equipment can reach the effect that prevents obstruction, but it is all higher that it prevents stopping up the energy consumption needing, still need a kind of solid material carrying method that prevents efficiently obstruction.
Summary of the invention
Blockage problem while carrying in order to solve powder material, the design people provides a kind of powder load transfer device and method with block clearing and/or choke preventing function.
Solid material carrying method proposed by the invention, use solid material load transfer device, described equipment comprises at least one broach hopper, this broach hopper comprises top material loading section and bottom blanking section, in bottom blanking section, there is blade, blade maintains static, blade and bottom blanking section inwall have a fixed gap, bottom blanking section outer wall is connected with bearing driving device, by bearing driving device, drive bottom blanking section to rotate, blade has the nozzle of subordinate's section of expecting inwall jet gas down, at the outlet section of bottom blanking section, has flow measurement;
The flow measuring when flow measurement drops to when a certain amount of, starts bearing driving device, can only start bearing driving device, also can start the nozzle of bearing driving device and blade simultaneously.
Wherein, at least one blade, be connected with pressure sensor, preferably on each blade, be connected with pressure sensor.
Wherein, the space of blade and bottom blanking section inwall accounts for the 0.3-10% of bottom blanking section inwall radius, preferably 1.0%-6.6%, more preferably 1.6%-3.3%.
Wherein, blade is identical everywhere with the space of bottom blanking section inwall; Or the space of blade and bottom blanking section inwall reduces from top to bottom gradually.
Wherein, blade plan form can be in the shape of a spiral, straight tabular or swash plate shape.
Wherein, the nozzle Jet with downward flow direction gas on blade.
Wherein, the nozzle on blade and horizontal sextant angle are 15-95 °, preferred 35-75 °, more preferably 55-75 °, most preferably 75 °.
The flow measuring when flow measurement drops to when a certain amount of, starts bearing driving device, can only start bearing driving device, also can start the nozzle of bearing driving device and blade simultaneously.Also bearing driving device can be started all the time, also the nozzle of bearing driving device and blade can be started all the time simultaneously
The condition of startup is set according to the character of powder material, in general when flow drops to the 80%-40% of normal discharge, starts anti-blocking equipment, reduction energy consumption that can maximal efficiency.For power plant boiler fine coal, carry, in general when flow drop to normal discharge 60% time startup; And for the fly ash carry of flying dust treating system, in general when flow drop to normal discharge 50% time start.
Equipment of the present invention judges stopping state by discharge measurement, selects start anti-block apparatus suitable opportunity, has improved anti-blocking efficiency, has reduced energy consumption.Nozzle is set on blade, in the rotation of bottom blanking section, sprays, improved anti-blocking efficiency, reduced energy consumption.The spray angle of adjusting blade top nozzle, has improved anti-blocking efficiency, has reduced energy consumption.
In real-world operation; resistance between blade and solid material is very large; the problems such as blade often can become flexible, disconnect, comes off; once generation the problems referred to above; not only can cause blocking-proof result obviously to decline; also the parts such as hopper may be damaged, therefore the problems referred to above must be found in time, and maintenance immediately.The present invention, by pressure sensor is set, can detect in real time the situation of blade, thereby solve the problems referred to above.
The weight of hopper is larger, adopt as 200810140442.0 in gear transmission time, the rotation of hopper can not be stablized, and often breaks down, this equipment changes gear transmission into bearing-transmission, has overcome the gear transmission problem of normal smooth operation for a long time.
Accompanying drawing explanation
Fig. 1 represents the structural representation of this equipment.
The specific embodiment
This equipment is referring to Fig. 1.Its structure comprises: at least one broach hopper, and this broach hopper comprises top material loading section 1 and bottom blanking section 2, in bottom blanking section 2, has blade 4, blade 4 maintains static.Blade has the nozzle (not shown in FIG.) of subordinate's section of expecting inwall jet gas down.Nozzle Jet with downward flow direction gas on blade.Outlet section in bottom blanking section has flow measurement 5, and blade plan form is swash plate shape.Bottom blanking section 2 middle part outer walls are connected with bearing driving device 3, by bearing driving device 3, drive blanking section in bottom to rotate.On each blade 4, be connected with pressure sensor (not shown in FIG.).
When conveying powder material, flow measurement 5 measuring flows change, and when flow drops to when a certain amount of, start bearing driving device 3; When starting bearing driving device 3, the nozzle that can start blade 4 also can not start the nozzle of blade 4, thereby prevents that efficiently powder material from stopping up.Pressure sensor on blade is worked all the time, if find that blade becomes flexible, disconnects, comes off etc. when abnormal, can report to the police, and as early as possible blade is repaired.
Embodiment 1:
Take fine coal as example, when flow drop to normal discharge 70% time start bearing driving device 3 (not starting the nozzle of blade), the space of blade and bottom blanking section 2 inwalls accounts for 0.1%, 0.3%, 1.0%, 1.6%, 3.3%, 6.6%, 10%, 15% of bottom blanking section radius (internal diameter).Measuring flow returns to 95% energy consumption of normal discharge.0.3% the energy consumption of take is 1, calculates the energy consumption of other ratio, in Table 1.
| 0.1％ | 0.3％ | 1.0％ | 1.6％ | 3.3％ | 6.6％ | 10％ | 15％ | |
| Energy consumption | 100％ | 95％ | 80％ | 75％ | 90％ | 105％ |
Wherein 0.1% space pressure sensor when testing is for the second time reported to the police, and loosening phenomenon occurs blade on inspection; 15% cannot return to 95% of normal discharge.
Adopt 3.3% space apart from contact running 1000 hours, do not occur that blade is reported to the police and blanking section in bottom is rotated abnormal.
Embodiment 2:
Take fine coal as example, when flow drop to normal discharge 70% time start bearing driving device 3 and (start the nozzle of blade simultaneously, nozzle Jet with downward flow direction gas on blade, 75 ° of nozzle and horizontal sextant angles, the space of blade and bottom blanking section 2 inwalls account for bottom blanking section radius (internal diameter) 3.3%), measuring flow returns to 95% energy consumption of normal discharge.
The energy consumption of embodiment 1 of take is 1, calculates the energy consumption of embodiment 2, in Table 2.
| Embodiment 1 | Embodiment 2 | |
| Energy consumption | 100％ | 90％ |
As can be seen from the table, the nozzle starting on blade when blanking section in bottom is rotated can reduce anti-blocking energy consumption.
Embodiment 3:
Take fine coal as example, when flow drop to normal discharge 70% time start bearing driving device 3 and (start the nozzle of blade simultaneously, the space of blade and bottom blanking section 2 inwalls account for bottom blanking section radius (internal diameter) 3.3%), wherein, nozzle Jet with downward flow direction gas on blade, 15,35,55,75,95 ° of nozzle and horizontal sextant angles.Measuring flow returns to 95% energy consumption of normal discharge.The energy consumption of 15 ° of angles of take is 1, calculates the energy consumption of other angle, in Table 3.
| 15° | 35° | 55° | 75° | 95° | |
| Energy consumption | 100％ | 95％ | 80％ | 75％ | 100％ |
As can be seen from the table, 75 ° have lowest energy consumption.
Embodiment 4:
Take fine coal as example, when flow drop to normal discharge 40%, 50%, 60%, 70%, 80% time start bearing driving device 3 and (start the nozzle of blade simultaneously, the space of blade and bottom blanking section 2 inwalls account for bottom blanking section radius (internal diameter) 3.3%), wherein, nozzle Jet with downward flow direction gas on blade, 75 ° of nozzle and horizontal sextant angles, flow return to normal discharge 95% time close bearing driving device 3 (simultaneously closing the nozzle of blade), calculate the energy consumption of carrying the anti-blocking equipment of 10kg material.40% the energy consumption of take is 1, calculates other energy consumption, in Table 4.
| 40％ | 50％ | 60％ | 70％ | 80％ | |
| Energy consumption | 100％ | 100％ | 85％ | 90％ | 100％ |
As can be seen from the table, start and there is lowest energy consumption 60% time.
Embodiment 5:
Similar to Example 4, just change fine coal into flying dust, the results are shown in Table 5.
| 40％ | 50％ | 60％ | 70％ | 80％ | |
| Energy consumption | 100％ | 85％ | 95％ | 100％ | 105％ |
As can be seen from the table, start and there is lowest energy consumption 50% time.
Claims (3)
1. a solid material carrying method, use solid material load transfer device, described equipment comprises at least one broach hopper, this broach hopper comprises top material loading section and bottom blanking section, in bottom blanking section, there is blade, blade maintains static, blade and bottom blanking section inwall have a fixed gap, bottom blanking section outer wall is connected with bearing driving device, by bearing driving device, drive bottom blanking section to rotate, blade has the nozzle of subordinate's section of expecting inwall jet gas down, at the outlet section of bottom blanking section, has flow measurement, the flow measuring when flow measurement drops to when a certain amount of, start bearing driving device, can only start bearing driving device, also can start the nozzle of bearing driving device and blade simultaneously, on each blade, be connected with pressure sensor, the space of blade and bottom blanking section inwall accounts for the 1.6%-3.3% of bottom blanking section inwall radius, blade reduces in identical or space with the space of bottom blanking section inwall everywhere from top to bottom gradually, blade plan form in the shape of a spiral or directly tabular, nozzle Jet with downward flow direction gas on blade, nozzle on blade and horizontal sextant angle are 55-75 °, it is the 80%-40% that drops to normal discharge that described flow drops to a certain amount of.
2. the method for claim 1, the nozzle on blade and horizontal sextant angle are 75 °.
3. method as claimed in claim 2, when for delivery of fine coal, flow drops to 60% of normal discharge; When for delivery of flying dust, flow drops to 50% of normal discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210205155.XA CN102874507B (en) | 2012-06-19 | 2012-06-19 | Nozzle-contained solid material conveying method with intelligent anti-clogging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210205155.XA CN102874507B (en) | 2012-06-19 | 2012-06-19 | Nozzle-contained solid material conveying method with intelligent anti-clogging function |
Publications (2)
| Publication Number | Publication Date |
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| CN102874507A CN102874507A (en) | 2013-01-16 |
| CN102874507B true CN102874507B (en) | 2014-05-07 |
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| CN201210205155.XA Expired - Fee Related CN102874507B (en) | 2012-06-19 | 2012-06-19 | Nozzle-contained solid material conveying method with intelligent anti-clogging function |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917126A (en) * | 1974-07-16 | 1975-11-04 | William H Beach | Feeding device |
| SU979232A1 (en) * | 1981-06-26 | 1982-12-07 | Всесоюзный Научно-Исследовательский Институт Комбикормовой Промышленности | Apparatus for unloading silos |
| JP2005132528A (en) * | 2003-10-29 | 2005-05-26 | Hitachi Plant Eng & Constr Co Ltd | Hopper device |
| CN201721835U (en) * | 2010-06-28 | 2011-01-26 | 濮阳市亚利机械制造有限公司 | Novel mounting structure of air cannon combined dredging machine |
| CN201785051U (en) * | 2010-08-06 | 2011-04-06 | 天瑞集团水泥有限公司 | Automatic detecting anti-blocking device of discharge bin |
| CN201942185U (en) * | 2011-03-04 | 2011-08-24 | 无锡市华通环保设备有限公司 | Integrated blocking cleaning coal bucket |
| CN201961727U (en) * | 2011-02-24 | 2011-09-07 | 哈尔滨润河科技有限公司 | Pneumatic block clearing device for coal dropping pipe |
| CN202030219U (en) * | 2011-04-06 | 2011-11-09 | 南通市华峰化工有限责任公司 | Screw feeder |
| CN202030289U (en) * | 2011-04-06 | 2011-11-09 | 南通市华峰化工有限责任公司 | Spiral feeder |
| CN202138746U (en) * | 2011-03-09 | 2012-02-08 | 万平 | Spiral-thrust rotary blocking-cleaning bunker |
-
2012
- 2012-06-19 CN CN201210205155.XA patent/CN102874507B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917126A (en) * | 1974-07-16 | 1975-11-04 | William H Beach | Feeding device |
| SU979232A1 (en) * | 1981-06-26 | 1982-12-07 | Всесоюзный Научно-Исследовательский Институт Комбикормовой Промышленности | Apparatus for unloading silos |
| JP2005132528A (en) * | 2003-10-29 | 2005-05-26 | Hitachi Plant Eng & Constr Co Ltd | Hopper device |
| CN201721835U (en) * | 2010-06-28 | 2011-01-26 | 濮阳市亚利机械制造有限公司 | Novel mounting structure of air cannon combined dredging machine |
| CN201785051U (en) * | 2010-08-06 | 2011-04-06 | 天瑞集团水泥有限公司 | Automatic detecting anti-blocking device of discharge bin |
| CN201961727U (en) * | 2011-02-24 | 2011-09-07 | 哈尔滨润河科技有限公司 | Pneumatic block clearing device for coal dropping pipe |
| CN201942185U (en) * | 2011-03-04 | 2011-08-24 | 无锡市华通环保设备有限公司 | Integrated blocking cleaning coal bucket |
| CN202138746U (en) * | 2011-03-09 | 2012-02-08 | 万平 | Spiral-thrust rotary blocking-cleaning bunker |
| CN202030219U (en) * | 2011-04-06 | 2011-11-09 | 南通市华峰化工有限责任公司 | Screw feeder |
| CN202030289U (en) * | 2011-04-06 | 2011-11-09 | 南通市华峰化工有限责任公司 | Spiral feeder |
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| CN102874507A (en) | 2013-01-16 |
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Owner name: SHANDONG PINGYUAN CHOOSUN ENERGY SAVING EQUIPMENT Free format text: FORMER OWNER: CHENG XIAOTANG Effective date: 20140729 |
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Free format text: CORRECT: ADDRESS; FROM: 100049 HAIDIAN, BEIJING TO: 253100 DEZHOU, SHANDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140729 Address after: 253100 Eastern District of Plain Economic Development Zone, Shandong Patentee after: Shandong plain energy saving equipment Co., Ltd. Address before: 100049 Beijing Fuxing Road, No. 36, building No. 1, building No. 1104, No. Patentee before: Cheng Xiaotang |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20140507 Termination date: 20160619 |