CN106765270A - A kind of fine coal enters stove burning explosion-proof method - Google Patents
A kind of fine coal enters stove burning explosion-proof method Download PDFInfo
- Publication number
- CN106765270A CN106765270A CN201610988358.9A CN201610988358A CN106765270A CN 106765270 A CN106765270 A CN 106765270A CN 201610988358 A CN201610988358 A CN 201610988358A CN 106765270 A CN106765270 A CN 106765270A
- Authority
- CN
- China
- Prior art keywords
- coal
- fine coal
- proof method
- stove burning
- burning explosion
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
Enter stove burning explosion-proof method the present invention relates to a kind of fine coal, it is that fine coal is sent into the combust of boiler one with the paper mill sludge mixture extruding coal-forming rod blending broken coal after extracting.It can effectively be eliminated " blowing out ", and security is good, save fuel, reduce pollution.
Description
Technical field
Enter stove burning explosion-proof method the present invention relates to a kind of fine coal.
Background technology
Raw coal particle is too dry, too thin, and the fine coal of below particle diameter ＜ 1mm can cause stove after the meeting into boiler fluid bed
Dust concentration is too high in thorax, flash burn blast, is commonly called as " blowing out ", very dangerous.And the main Solid content of paper mill sludge be fiber fines,
Miberal powder and colloid, its calorific value are 1142 kilocalories or so, using machine for producing coal bars fine breeze and paper mill sludge mixture extruding coal-forming
Bar fuel is burned into boiler, had both been solved burner hearth and " has been blown out " problem, and coal fuel is saved again.
Paper mill sludge is the end product of paper-making process wastewater treatment, and its organic matter (predominantly cellulose) content is
62%, content of ashes is 38%, and pH value is 7.2, can realize innoxious, minimizing and recycling treatment.Current Treatment of Sludge
Method can divide three classes：Landfill, compost and burning.
The multifuel combustion of coal and other solid waste such as sludge, domestic waste and biomass etc., it is considered to be to ring
Harmless, the economic method in border, has both processed rubbish, and heat energy is produced again.Use the notable of recirculating fluidized bed coal combustion technology
Advantage is the adaptability and low pollution emission of pluralities of fuel.
The content of the invention
The purpose of the present invention is to change CFBB tradition fire coal handling process, there is provided a kind of new fine coal enters stove
Burning explosion-proof method, solves CFBB because the dirt of " blowing out " and paper mill sludge to environment occurs in coal too thin, burner hearth
Dye phenomenon, obtains preferable environmental benefit, social benefit.
The object of the present invention is achieved like this, and it is that fine coal is extruded into coal-forming rod with the paper mill sludge mixture after extracting
The blending broken coal feeding combust of boiler one.
Coal rod size is φ 10-20mm × 30~50mm.
It is an advantage of the invention that：Process is simple, it is easy to operate, eliminate " blowing out ", security is good；Made after reducing sewage disposal
The secondary pollution of paper sludge, is sparing in the use of coal.
Brief description of the drawings
Fig. 1 is present invention process flow chart.
Specific embodiment
Embodiment：As shown in figure 1, the sludge of Sewage Disposal deposition is extracted into sludge concentration tank 1 by sludge pump 21, and
Concentration basin adds appropriate flocculant, sludge that upper strata primary water is extracted into sewage disposal with immersible pump after concentration basin is precipitated 2 hours
Stand treatment, remaining sludge concentration about 3~5%, then injecting diaphragm filter press 2 with screw pump carries out dewater treatment, the water for leaching
Sewage Disposal is returned to, the mud cake moisture after filtering is 47~50%, it is stand-by to load mud cake bucket with loading machine.Mud cake bucket lower section sets
Put the broken spiral 4 of metering, mud cake granularity≤30mm after metering crushes the primary breakup of spiral 4, subsequently into broken conveying spiral shell
Rotation 5 carries out secondary high-speed breakage, and particle size after cracking≤5mm is simultaneously delivered to biaxial rneader.
Duff carbon sifts out fine breeze to coal bunker 17 by slanted screen 16, and coal bunker 17 is provided below metering travelling belt 18, coal dust
Biaxial rneader 6 is transported to by measuring travelling belt 18 to mix with mud cake particle, and is stirred.Metering belt conveyor 18 with
The broken spiral 4 of metering is mounted on frequency converter, can control coal dust with mud cake particle mixed proportion and conveying capacity size.Twin shaft is stirred
Mix 6 the coal dust for stirring and mud cake mixture are delivered to machine for producing coal bars 7 and be squeezed into φ 16mm × 40mm coal rods, the coal rod of extrusion
Fall on belt conveyor 8 and be transported to coal rod storehouse 9 standby.
The duff charcoal that can't pass slanted screen is screened together with thick raw coal by vibratory sieve 19, and falling directly into for granularity≤10mm is defeated
The coal cinder of belt feeder 11, >=10mm is sent to fall into belt conveyor 11 after disintegrating machine 20 is broken.Coal rod storehouse 9 is arranged on belt conveyor
11 top, when belt conveyor 11 starts, be evenly supplied to for coal rod defeated by the synchronous averaging of metering screw 10 of the bottom of coal rod storehouse 9
Send on belt 11, adjustment frequency converter frequency can just control the coal rod conveying capacity of metering screw 10.After belt conveyor 11 will be screened
Raw coal is delivered to elevator 12 with coal rod mixture, and elevator 12 is standby to coal store 13 with the lifting of coal rod mixture by raw coal.
Feeder 14 is arranged at the bottom of coal store 13, and coal is uniformly sent with coal rod according to the rotating speed that boiler load size adjusts feeder 14
Fluidized bed 15 is burned.
Sludge after Sewage is mixed by fiber fines, the type organic of jelly and miberal powder etc inorganic matter etc.
Compound composition.Coal rod paper mill sludge used by the present invention make binding agent and duff particle compacting coal-forming rod (coal rod moisture≤
25%, kilocalorie of calorific value 3300 or so), both solved the problems, such as that burner hearth coal powder density was too high, flash burn blast, mud cake water is reduced again
Point be conducive to boiler to burn, so as to reduce the consumption of coal, be sparing in the use of coal, while reducing the secondary of sludge after Sewage
Pollution, economic benefit and social benefit are simultaneously deposited.
Meanwhile, the miberal powder in paper mill sludge reacts with the sulphur in coal in burner hearth, can effectively reduce boiler smoke
Gas SO2Content, reduce desulphurizer of boiler usage amount, reduce consumption, mitigate environmental pollution.
Claims (2)
1. a kind of fine coal enters stove burning explosion-proof method, it is characterised in that：Fine coal is extruded with the paper mill sludge mixture after extracting
The coal-forming rod blending broken coal feeding combust of boiler one.
2. fine coal according to claim 1 enters stove burning explosion-proof method, it is characterised in that：Coal rod size is 10~20mm of Φ
× 30~50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988358.9A CN106765270A (en) | 2016-11-04 | 2016-11-04 | A kind of fine coal enters stove burning explosion-proof method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988358.9A CN106765270A (en) | 2016-11-04 | 2016-11-04 | A kind of fine coal enters stove burning explosion-proof method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106765270A true CN106765270A (en) | 2017-05-31 |
Family
ID=58972721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610988358.9A Pending CN106765270A (en) | 2016-11-04 | 2016-11-04 | A kind of fine coal enters stove burning explosion-proof method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106765270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592044A (en) * | 2018-04-23 | 2018-09-28 | 武汉永清环保科技工程有限公司 | A kind of method that power plant soot mixes medical sludge incineration |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213718A (en) * | 2001-01-15 | 2002-07-31 | Ishikawajima Harima Heavy Ind Co Ltd | Combination coal/paper sludge boiler equipment |
| CN1559939A (en) * | 2004-03-10 | 2005-01-05 | 沈阳戴维国际机电设备有限公司 | Process for treating sludge of sewage treatment plant by circulating fluidizing burning method |
| CN102269418A (en) * | 2011-05-18 | 2011-12-07 | 桑洪忠 | Method for utilizing papermaking sludge to realize desulfuration, denitrification and coal conservation of circulating fluid bed |
| CN202747364U (en) * | 2012-09-10 | 2013-02-20 | 中冶北方（大连）工程技术有限公司 | Paper sludge recycling system |
| CN103090378A (en) * | 2011-10-27 | 2013-05-08 | 新邵德信绝缘纸板有限公司 | Boiler fire coal processing process |
| CN204844939U (en) * | 2015-08-12 | 2015-12-09 | 王风贡 | Coal -rod machine |
-
2016
- 2016-11-04 CN CN201610988358.9A patent/CN106765270A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213718A (en) * | 2001-01-15 | 2002-07-31 | Ishikawajima Harima Heavy Ind Co Ltd | Combination coal/paper sludge boiler equipment |
| CN1559939A (en) * | 2004-03-10 | 2005-01-05 | 沈阳戴维国际机电设备有限公司 | Process for treating sludge of sewage treatment plant by circulating fluidizing burning method |
| CN102269418A (en) * | 2011-05-18 | 2011-12-07 | 桑洪忠 | Method for utilizing papermaking sludge to realize desulfuration, denitrification and coal conservation of circulating fluid bed |
| CN103090378A (en) * | 2011-10-27 | 2013-05-08 | 新邵德信绝缘纸板有限公司 | Boiler fire coal processing process |
| CN202747364U (en) * | 2012-09-10 | 2013-02-20 | 中冶北方（大连）工程技术有限公司 | Paper sludge recycling system |
| CN204844939U (en) * | 2015-08-12 | 2015-12-09 | 王风贡 | Coal -rod machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592044A (en) * | 2018-04-23 | 2018-09-28 | 武汉永清环保科技工程有限公司 | A kind of method that power plant soot mixes medical sludge incineration |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |