CN101634456A - Fluidized grain dust removing system - Google Patents
Fluidized grain dust removing system Download PDFInfo
- Publication number
- CN101634456A CN101634456A CN200910169624A CN200910169624A CN101634456A CN 101634456 A CN101634456 A CN 101634456A CN 200910169624 A CN200910169624 A CN 200910169624A CN 200910169624 A CN200910169624 A CN 200910169624A CN 101634456 A CN101634456 A CN 101634456A
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- China
- Prior art keywords
- even mixing
- storage tank
- mixing pot
- dust removing
- removing system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000428 dust Substances 0.000 title claims abstract description 36
- 238000002156 mixing Methods 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000000779 smoke Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 13
- 230000000740 bleeding effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000005243 fluidization Methods 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000005514 two-phase flow Effects 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention provides a fluidized grain dust removing system which comprises a charging hopper, a material storage pot, a screwed feeder and a material even mixing pot which are sequentially connected from the top down and fixed on a steel bracket, wherein a cylinder body of the material storage pot is divided into an upper part and a lower part, the upper part is cylindrical, and the lower part is of an inverted cone shape; an upper sealing head of the material storage pot is connected with an outlet of the charging hopper through a pipeline, and a lower sealing head of the material storage pot is connected with an inlet of the screwed feeder through a pipeline; an outlet of the screwed feeder is connected with the top of the material even mixing pot; the upper part of the material even mixing pot is cylindrical, while the lower part is of the inverted cone shape; the top end of material even mixing pot is connected with one end of a main air pipe, while the other end of the main air pipe is connected with an air compressor, and a material loosing air pipe is also led out from the main air pipe; and the bottom end of the material even mixing pot is connected with one end of a material conveying pipeline, while the other end of the material conveying pipeline is connected with a front smoke box of a boiler. The system can mix fine sand with air so as to enable the fine sand to be fluidized and has simple manufacturing process, strong controllability, high safety, good stability, ideal dust removing effect as well as convenient use and maintenance.
Description
Technical field
The present invention relates to a kind of fluidized grain dust removing system that is used for chemical industry pan shell type waste heat boiler.
Background technology
The deashing cleaner of boiler heating surface is to improve boiler thermal output, prolongs one of visual plant of service life of equipment.The dust collection method of boiler and equipment are varied.Gas impulse dust pelletizing system for example, it is sound wave with certain pressure and an air-flow pulse technique of utilizing the moment burning of fuel gas to produce, it is big that it has intensity, dedusting effect is good, advantage such as easy to use, but to leak may appear in fuel gas, and ND hidden danger is arranged; Simultaneously fuel gas and Air mixing proportion requirement height, and the fuel gas consumption is big, otherwise a bit not the situation generation; Also have the uppity defective of pulse energy in addition, when pulse energy is excessive easily to stove in refractory wall and heat-insulation layer damage.
Fluidization is as a new subject in the Chemical Engineering and Technology, experience nearly 70 years development, be used widely, remove as the RFCC of oil plant, the fluidized drying of chemical industry, the fluid-bed combustion boiler in the power plant, the sulfide in environmental protection field etc.In chemical industry high-temperature flue gas used heat utilizes, the high-temperature flue gas that enters waste heat boiler often contains a large amount of stickiness dust granules, the stickiness particle since between particle adhesive force big, being easy to influences the heat exchange effect and the security of operation of boiler on the coalescent agglomerating furnace wall and heating surface that sticks to boiler greatly.
Summary of the invention
The object of the present invention is to provide and a kind ofly can reduce the dust granules stickiness, thus the fluidized grain dust removing system of the poly-group of control size.
Realize the object of the invention technical scheme: a kind of fluidized grain dust removing system, it comprises loading hopper, storage tank, steel bracket, screw(-type) feeder, even mixing pot, loose metal airduct, air main, air compressor machine, feeding pipe, boiler front smoke box; Described loading hopper, storage tank, screw(-type) feeder, even mixing pot connect from top to bottom successively, and are fixed on the steel bracket; The storage tank cylindrical shell divides two parts up and down, and top is divided into cylindrical, and the bottom is divided into back taper, and the upper cover of storage tank links to each other with the outlet of loading hopper by pipeline, and the low head of storage tank is connected with the screw(-type) feeder inlet by pipeline; The screw(-type) feeder outlet is connected with the even mixing pot top; Even mixing pot top is cylindrical shape, and the bottom is a back taper; The even mixing pot top is connected with air main one end, and the air main other end is connected with air compressor machine, also draws the loose metal airduct on air main; The even mixing pot bottom is connected with feeding pipe one end, and the feeding pipe other end is connected with the boiler front smoke box.
Aforesaid a kind of fluidized grain dust removing system, it is provided with to regulate on connection loading hopper and storage tank pipeline uses the dish valve.
Aforesaid a kind of fluidized grain dust removing system, it is provided with to regulate on the feeding pipe of even mixing pot bottom uses the dish valve, also is provided with the discharging ball valve on the lateral that feeding pipe is drawn.
Aforesaid a kind of fluidized grain dust removing system, it also is provided with motorized adjustment ball valve, air main stop valve, Pressure gauge and flowmeter on air main.
Aforesaid a kind of fluidized grain dust removing system, it is provided with several defeated material arms on the boiler front smoke box, and defeated material arm is provided with conveying pipeline ball valve and check-valves.
Aforesaid a kind of fluidized grain dust removing system, its described storage tank upper cover is flat head or ellipse head, this upper cover is provided with anticlogging Pressure gauge and air bleeding valve; The low head of described storage tank is plate.
Effect of the present invention is: adopting fluidized grain dust removing system of the present invention, can be that fine sand and the air mixing of 0.2～0.5mm makes it be fluidization with diameter, obtains the even dust storm gas of uniform temperature, pressure and flow, solid two-phase flow.The stickiness dust that utilizes fluidization fine sand particle to reunite on fragmentation under certain cigarette speed condition, wearing and tearing boiler heating surface guarantees that boiler heating surface is clean, helps conducting heat.Simultaneously, because the particle that has high input also causes the boiler heat exchange property to be greatly improved, improved the boiler coefficient of heat transfer.Fluidized grain dust removing system provided by the invention has that manufacturing process is simple, controllability is strong, and is safe, good stability, and the dedusting effect ideal is used characteristics such as easy to maintenance, suits to promote the use of in the ash disposal of chemical industry pan shell type waste heat boiler heating surface.
Description of drawings
Fig. 1 is a kind of fluidized grain dust removing system structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a storage tank lower end structure schematic diagram.
Among the figure: 1, loading hopper; 2, dish valve; 3, air bleeding valve; 4, storage tank; 5, steel bracket; 6, screw(-type) feeder; 7, even mixing pot; 8, ball valve; 9, Pressure gauge; 10, loose metal wind stop valve; 11, loose metal airduct; 12, air main stop valve; 13, air main; 14, flowmeter; 15, air compressor machine; 16, motorized adjustment ball valve; 17, feeding pipe; 18, conveying pipeline ball valve; 19, check-valves; 20, defeated material arm; 21, boiler front smoke box; 22, loose metal blast cap.
The specific embodiment
Below in conjunction with the drawings and specific embodiments a kind of fluidized grain dust removing system of the present invention is further described.
As depicted in figs. 1 and 2, fluidized grain dust removing system of the present invention mainly comprises loading hopper 1, storage tank 4, steel bracket 5, screw(-type) feeder 6, even mixing pot 7, loose metal airduct 11, air main 13, air compressor machine 15, feeding pipe 17, boiler front smoke box 21.
Loading hopper 1, storage tank 4, screw(-type) feeder 6, even mixing pot 7 connect from top to bottom successively, and are fixed on the steel bracket 5.The body weight of native system drops on the steel bracket 5.
Even mixing pot 7 tops are cylindrical shape, and the bottom is a back taper; Even mixing pot 7 tops are connected with air main 13 1 ends, and even mixing pot 7 bottoms are connected with feeding pipe 17 1 ends, and feeding pipe 17 other ends are connected with boiler front smoke box 21.Also be provided with on the feeding pipe 17 and regulate, on the lateral that feeding pipe 17 is drawn, also be provided with discharging ball valve 8 with dish valve 2.。
Air main 13 other ends are connected with air compressor machine 15, are provided with motorized adjustment ball valve 16, air main stop valve 12, Pressure gauge 9 and flowmeter 14 on air main 13 successively.On air main 13, also draw loose metal airduct 11.
On connection loading hopper 1 and storage tank 4 pipelines, be provided with and regulate with dish valve 2.
Be provided with several defeated material arms 20 on boiler front smoke box 21, defeated material arm 20 is provided with conveying pipeline ball valve 18 and check-valves 19.
As shown in figures 1 and 3, storage tank 4 is made up of cylindrical shell, end socket, glass plate peep hole and blast cap.Cylindrical shell divides two parts up and down, and top is divided into cylindrical, and the bottom is divided into back taper.The upper cover of storage tank 4 can be flat head or ellipse head, links to each other by pipeline with the outlet of loading hopper 1, and anticlogging Pressure gauge 9 and air bleeding valve 3 also are installed on it.The low head of storage tank 4 is dull and stereotyped, and two loose metal blast caps 22 are installed, and is connected with screw(-type) feeder 6 inlets by pipeline.
Fluidized grain dust removing system of the present invention in use, husky material enters loading hopper 1 by defeated material equipment, enters storage tank 4 through loading hopper 1, the feed flow is regulated by dish valve 2.The air that the anticlogging air bleeding valve of installing by storage tank 4 tops when reinforced 3 is got rid of in the cylindrical shell, it is excessive to prevent that the internal memory conductance from causing pressure, makes that the loading hopper fine sand can not normal descend.The loose metal blast cap 22 that is provided with by storage tank 4 bottoms, the input flow air is used for loose fine sand, makes to have certain pressure in the storage tank, keeps fine sand to drop to screw(-type) feeder 6 more smoothly.Fine sand enters even mixing pot 7 through screw(-type) feeder 6, wind from air compressor machine 15 is blown into even mixing pot 7 through air main 13 as batch mixing wind simultaneously, even mixing pot 7 is places that fine sand particle and batch mixing wind mix, fine sand and an amount of air mix the even dust storm gas that obtains uniform temperature, pressure and flow, solid two-phase flow, send into the boiler front smoke box by feeding pipe 17 again.Two arms of drawing on the air main 13 are loose metal airduct 11, and loose metal wind is provided.Dual-Phrase Distribution of Gas olid enters in the boiler front smoke box through defeated material arm 17, and conveying pipeline ball valve 18 is used for regulating the flow of dust storm Dual-Phrase Distribution of Gas olid, and check-valves 19 is used for preventing that the sand and dust in the boiler uptake from flowing backwards.
Fluidized grain dust removing system of the present invention can be that fine sand and the air mixing of 0.2～0.5mm makes it be fluidization with diameter, obtains the even dust storm gas of uniform temperature, pressure and flow, solid two-phase flow.The stickiness dust that utilizes fluidization fine sand particle to reunite on fragmentation under certain cigarette speed condition, wearing and tearing boiler heating surface guarantees that boiler heating surface is clean, helps conducting heat.Simultaneously, the flue-gas temperature that can also record by boiler back end ductwork and the difference of design temperature adopt native system to realize Automatic Control, guarantee the instant collecting ash of removing, and boiler is under the optimum condition all the time moves.Particle also causes the boiler heat exchange property to be greatly improved owing to have high input, and has improved the boiler coefficient of heat transfer.
Claims (6)
1, a kind of fluidized grain dust removing system is characterized in that: it comprises loading hopper (1), storage tank (4), steel bracket (5), screw(-type) feeder (6), even mixing pot (7), loose metal airduct (11), air main (13), air compressor machine (15), feeding pipe (17), boiler front smoke box (21);
Described loading hopper (1), storage tank (4), screw(-type) feeder (6), even mixing pot (7) connect from top to bottom successively, and are fixed on the steel bracket (5);
Storage tank (4) cylindrical shell divides two parts up and down, and top is divided into cylindrical, and the bottom is divided into back taper, and the upper cover of storage tank (4) links to each other by the outlet of pipeline with loading hopper (1), and the low head of storage tank (4) is connected with screw(-type) feeder (6) inlet by pipeline; Screw(-type) feeder (6) outlet is connected with even mixing pot (7) top;
Even mixing pot (7) top is cylindrical shape, and the bottom is a back taper; Even mixing pot (7) top is connected with air main (13) one ends, and air main (13) other end is connected with air compressor machine (15), also draws loose metal airduct (11) on air main (13); Even mixing pot (7) bottom is connected with feeding pipe (17) one ends, and feeding pipe (17) other end is connected with boiler front smoke box (21).
2, a kind of fluidized grain dust removing system according to claim 1 is characterized in that: be provided with on connection loading hopper (1) and storage tank (4) pipeline and regulate with dish valve (2).
3, a kind of fluidized grain dust removing system according to claim 1, it is characterized in that: on the feeding pipe (17) of even mixing pot (7) bottom, be provided with and regulate, on the lateral that feeding pipe (17) is drawn, also be provided with discharging ball valve (8) with dish valve (2).
4, a kind of fluidized grain dust removing system according to claim 1 is characterized in that: also be provided with motorized adjustment ball valve (16), air main stop valve (12), Pressure gauge (9) and flowmeter (14) on air main (13).
5, a kind of fluidized grain dust removing system according to claim 1 is characterized in that: be provided with several defeated material arms (20) on boiler front smoke box (21), defeated material arm (20) is provided with conveying pipeline ball valve (18) and check-valves (19).
6, a kind of fluidized grain dust removing system according to claim 1 is characterized in that: described storage tank (4) upper cover is flat head or ellipse head, and this upper cover is provided with anticlogging Pressure gauge (9) and air bleeding valve (3); The low head of described storage tank (4) is plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101696245A CN101634456B (en) | 2009-08-27 | 2009-08-27 | Fluidized grain dust removing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101696245A CN101634456B (en) | 2009-08-27 | 2009-08-27 | Fluidized grain dust removing system |
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| Publication Number | Publication Date |
|---|---|
| CN101634456A true CN101634456A (en) | 2010-01-27 |
| CN101634456B CN101634456B (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101696245A Active CN101634456B (en) | 2009-08-27 | 2009-08-27 | Fluidized grain dust removing system |
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| Country | Link |
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| CN (1) | CN101634456B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313288A (en) * | 2011-07-26 | 2012-01-11 | 北京交通大学 | Dust deposition removing method and system |
| CN105737143A (en) * | 2016-02-25 | 2016-07-06 | 四川省宜宾惠美线业有限责任公司 | Circular ash removing method suitable for fluidized bed boiler |
| CN105737144A (en) * | 2016-02-25 | 2016-07-06 | 四川省宜宾惠美线业有限责任公司 | Ash removal method suitable for fluidized bed boiler |
-
2009
- 2009-08-27 CN CN2009101696245A patent/CN101634456B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313288A (en) * | 2011-07-26 | 2012-01-11 | 北京交通大学 | Dust deposition removing method and system |
| CN105737143A (en) * | 2016-02-25 | 2016-07-06 | 四川省宜宾惠美线业有限责任公司 | Circular ash removing method suitable for fluidized bed boiler |
| CN105737144A (en) * | 2016-02-25 | 2016-07-06 | 四川省宜宾惠美线业有限责任公司 | Ash removal method suitable for fluidized bed boiler |
| CN105737144B (en) * | 2016-02-25 | 2018-01-05 | 四川省宜宾惠美线业有限责任公司 | A kind of process for deashing suitable for fluidized-bed combustion boiler |
| CN105737143B (en) * | 2016-02-25 | 2018-01-05 | 四川省宜宾惠美线业有限责任公司 | A kind of circulation process for deashing suitable for fluidized-bed combustion boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101634456B (en) | 2010-11-10 |
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Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Inst. of Aerospace Dynamics Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Inst. of Aerospace Dynamics Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corp. |
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Effective date of registration: 20170109 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Aerospace Propulsion Institute Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |
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Effective date of registration: 20170323 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing wing wing Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing aviate energy saving and Environmental Protection Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing wing wing Technology Co., Ltd. |