CN102874507A - 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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- CN102874507A CN102874507A CN201210205155XA CN201210205155A CN102874507A CN 102874507 A CN102874507 A CN 102874507A CN 201210205155X A CN201210205155X A CN 201210205155XA CN 201210205155 A CN201210205155 A CN 201210205155A CN 102874507 A CN102874507 A CN 102874507A
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- blade
- blanking section
- bottom blanking
- nozzle
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011343 solid material Substances 0.000 title claims abstract description 21
- 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging 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
- 230000011890 leaf development Effects 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 the 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 that when carrying along gravitational field, has intelligent block clearing and/or choke preventing function.
Background technology
At present, the solid material conveying is very general process in chemical industry, field of boilers, and wherein the vertical transport of solid material is modal process.In general, carry in order to save energy along the solid material of gravitational field, all be rely on gravity carry out solid material freely descend 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 might form bridge formation when the whole discharging 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 that results in blockage is such as having friction force between solid material and the equipment inner wall, having friction force etc. between the 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 from stopping up, it is all higher that but it prevents from stopping up the energy consumption that needs, and still needs a kind of solid material carrying method of stopping up of preventing efficiently.
Summary of the invention
Blockage problem when 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 the 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, has blade in the bottom blanking section, blade maintains static, blade and bottom blanking section inwall have a fixed gap, bottom blanking section outer wall is connected with bearing driving device, driving bottom blanking section by bearing driving device rotates, blade has the nozzle of subordinate's section of expecting inwall jet gas down, has flow measurement at the outlet section of bottom blanking section;
The flow that measures when flow measurement drops to when a certain amount of, starts bearing driving device, can only start bearing driving device, also can start simultaneously the nozzle of bearing driving device and blade.
Wherein, be connected with pressure sensor at least one blade, preferably be connected with pressure sensor at each blade.
Wherein, the space of blade and bottom blanking section inwall accounts for the 0.3-10% of bottom blanking section inwall radius, preferred 1.0%-6.6%, more preferably 1.6%-3.3%.
Wherein, blade is identical everywhere with the space of bottom blanking section inwall; Perhaps, 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 the blade.
Wherein, the nozzle on the blade and horizontal sextant angle are 15-95 °, preferred 35-75 °, and more preferably 55-75 °, most preferably 75 °.
The flow that measures when flow measurement drops to when a certain amount of, starts bearing driving device, can only start bearing driving device, also can start simultaneously the nozzle of bearing driving device and blade.Also can start all the time bearing driving device, also can start simultaneously all the time the nozzle of bearing driving device and blade
According to the character of powder material the condition of startup is set, in general when flow drops to the 80%-40% of normal discharge, starts anti-blocking equipment, reduction energy consumption that can maximal efficiency.Carry for power plant boiler fine coal, in general when flow drop to normal discharge 60% the time startup; And for the fly ash carry of flying dust treating system, in general when flow drop to normal discharge 50% the time start.
Equipment of the present invention is judged stopping state by discharge measurement, selects start anti-block apparatus suitable opportunity, has improved anti-blocking efficient, has reduced energy consumption.At blade nozzle is set, in the rotation of bottom blanking section, sprays, improved anti-blocking efficient, reduced energy consumption.Adjust the spray angle of blade top nozzle, improved anti-blocking efficient, reduced energy consumption.
In real-world operation; resistance between blade and the solid material is very large; the problems such as blade often can become flexible, disconnect, comes off; in case generation the problems referred to above; not only can cause blocking-proof result obviously to descend; also may damage the parts such as hopper, therefore must in time find the problems referred to above, and immediately maintenance.The present invention can detect in real time the situation of blade, thereby solve the problems referred to above by pressure sensor is set.
The weight of hopper is larger, adopt as 200810140442.0 in gear transmission the time, the rotation of hopper can not be stablized, and often breaks down, this equipment changes gear transmission into bearing-transmission, has overcome for a long time problem of normal smooth operation of gear transmission.
Description of drawings
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, this broach hopper comprise top material loading section 1 and bottom blanking section 2, have blade 4 in bottom blanking section 2, and 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 the blade.Outlet section in bottom blanking section has flow measurement 5, and blade plan form is the swash plate shape.Bottom blanking section 2 middle part outer walls are connected with bearing driving device 3, drive bottom blanking section by bearing driving device 3 and rotate.Be connected with the pressure sensor (not shown in FIG.) at each blade 4.
When the 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 the blade is worked all the time, becomes flexible, disconnects, comes off etc. when unusual if find blade, 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% the 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.Energy consumption take 0.3% is 1, calculates the energy consumption of other ratio, sees 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, on inspection the loosening phenomenon of leaf development; 15% can't return to 95% of normal discharge.
The space of employing 3.3% blade warning and bottom blanking section do not occur and rotates unusually apart from contact running 1000 hours.
Embodiment 2:
Take fine coal as example, when flow drop to normal discharge 70% the time start bearing driving device 3 and (start simultaneously the nozzle of blade, nozzle Jet with downward flow direction gas on the 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.
Take the energy consumption of embodiment 1 as 1, calculate the energy consumption of embodiment 2, see Table 2.
| Embodiment 1 | |
|
| Energy consumption | 100％ | 90％ |
As can be seen from the table, the nozzle that starts on the 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% the time start bearing driving device 3 and (start simultaneously the nozzle of blade, 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 the blade, nozzle and horizontal sextant angle 15,35,55,75,95 °.Measuring flow returns to 95% energy consumption of normal discharge.Take the energy consumption of 15 ° of angles as 1, calculate the energy consumption of other angle, see 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% the time start bearing driving device 3 and (start simultaneously the nozzle of blade, 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 the blade, 75 ° of nozzle and horizontal sextant angles, flow return to normal discharge 95% the time close bearing driving device 3 (closing simultaneously the nozzle of blade), calculate the energy consumption of carrying the anti-blocking equipment of 10kg material.Energy consumption take 40% is 1, calculates other energy consumption, sees Table 4.
| 40％ | 50％ | 60％ | 70％ | 80％ | |
| Energy consumption | 100％ | 100％ | 85％ | 90％ | 100％ |
As can be seen from the table, start 60% the time and have lowest energy consumption.
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 50% the time and have lowest energy consumption.
Claims (10)
1. solid material carrying method, use the 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, has blade in the bottom blanking section, blade maintains static, blade and bottom blanking section inwall have a fixed gap, bottom blanking section outer wall is connected with bearing driving device, driving bottom blanking section by bearing driving device rotates, blade has the nozzle of subordinate's section of expecting inwall jet gas down, has flow measurement at the outlet section of bottom blanking section;
The flow that measures when flow measurement drops to when a certain amount of, starts bearing driving device, can only start bearing driving device, also can start simultaneously the nozzle of bearing driving device and blade.
2. the method for claim 1 is connected with pressure sensor at least one blade, preferably is connected with pressure sensor at each blade.
3. such as each described method of claim 1-2, the space of blade and bottom blanking section inwall accounts for the 0.3%-10% of bottom blanking section inwall radius, preferred 1.0%-6.6%, more preferably 1.6%-3.3%.
4. such as each described method of claim 1-3, its Leaf is identical everywhere with the space of bottom blanking section inwall.
5. such as each described method of claim 1-3, the space of its Leaf and bottom blanking section inwall reduces from top to bottom gradually.
6. such as each described method of claim 1-5, wherein blade plan form can be in the shape of a spiral, straight tabular or swash plate shape.
7. such as each described method of claim 1-6, the nozzle Jet with downward flow direction gas on its Leaf.
8. method as claimed in claim 7, the nozzle on the blade and horizontal sextant angle are 15-95 °, preferred 45-90 °, more preferably 55-75 °, most preferably 75 °.
9. such as each described method of claim 1-8, it is the 80%-40% that drops to normal discharge that described flow drops to a certain amount of.
10. method as claimed in claim 9, 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 |
|---|---|
| CN102874507A true CN102874507A (en) | 2013-01-16 |
| CN102874507B CN102874507B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Publication number | Publication date |
|---|---|
| CN102874507B (en) | 2014-05-07 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: SHANDONG PINGYUAN CHOOSUN ENERGY SAVING EQUIPMENT Free format text: FORMER OWNER: CHENG XIAOTANG Effective date: 20140729 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
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 |
Granted publication date: 20140507 Termination date: 20160619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |