CN107267251A - A kind of boiler dirt-resistant additive and its preparation and application - Google Patents

A kind of boiler dirt-resistant additive and its preparation and application Download PDF

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Publication number
CN107267251A
CN107267251A CN201710463393.3A CN201710463393A CN107267251A CN 107267251 A CN107267251 A CN 107267251A CN 201710463393 A CN201710463393 A CN 201710463393A CN 107267251 A CN107267251 A CN 107267251A
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China
Prior art keywords
boiler
dirt
additive
parts
resistant
Prior art date
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Granted
Application number
CN201710463393.3A
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Chinese (zh)
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CN107267251B (en
Inventor
邵敬爱
张真
冯道显
易凡
刘汝杰
董安民
邓婷婷
王贤华
陈汉平
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China Power Construction Engineering Consulting Zhongnan Co Ltd
Huazhong University of Science and Technology
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China Power Construction Engineering Consulting Zhongnan Co Ltd
Huazhong University of Science and Technology
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Priority to CN201710463393.3A priority Critical patent/CN107267251B/en
Publication of CN107267251A publication Critical patent/CN107267251A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/10—Treating solid fuels to improve their combustion by using additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0204—Metals or alloys
    • C10L2200/0218—Group III metals: Sc, Y, Al, Ga, In, Tl
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0204—Metals or alloys
    • C10L2200/0227—Group V metals: V, Nb, Ta, As, Sb, Bi
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0204—Metals or alloys
    • C10L2200/0231—Group VI metals: Cr, Mo, W, Po
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0204—Metals or alloys
    • C10L2200/0236—Group VII metals: Mn, To, Re
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0204—Metals or alloys
    • C10L2200/024—Group VIII metals: Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The present invention relates to a kind of boiler dirt-resistant additive and its preparation and application, the additive includes the component of following parts by weight：15~25 parts of tungsten ore；10~20 parts of gangue；20~30 parts of bauxite；5~15 parts of chromite；25~35 parts of sandstone.Compared with prior art, the present invention is not on the premise of boiler structure and service condition is changed, it can effectively improve and easily stain fuel ash fusing point, reduce its caking property, substantially reduce slagging, the dust stratification problem for using and easily staiing fuel boiler, strengthen heat exchanger tube heat-transfer effect, reduce the flue gas loss of boiler, improve boiler efficiency；Electrical energy consumption of ventilation is reduced, station service has been saved；Effectively reduce the risk of carbonated drink normal work inside slagging influence heating surface, it is therefore prevented that carbonated drink pipe overheats booster；Reduce corrosion of the slagging to metal pipe-wall.The present invention expands accommodation of the boiler to easily contamination fuel for solving the problems, such as easily to stain fuel slagging, dust stratification.

Description

A kind of boiler dirt-resistant additive and its preparation and application
Technical field
The present invention relates to boiler technology field, and in particular to a kind of boiler dirt-resistant additive and its preparation and application.
Background technology
Many coals, few gas, oil-poor energy resource structure determine that coal is still the leading of China in the future for a long period of time The energy.Thermal power plant, which is undoubtedly, uses coal rich and influential family, and wherein quite a few is low-order coal, when boiler uses low-order coal, easily causes tight The dust stratification of weight and slagging.Because grey dirt has the thermal resistance more much bigger than metallic walls, thus heat-transfer effect is reduced, add boiler Flue gas loss, reduces boiler efficiency, and adds electrical energy consumption of ventilation.Simultaneously as slagging has a locality, thus have influence on by Carbonated drink normal work inside hot face.Serious slagging will block exhaust gases passes and burner hearth slag-drip opening and carbonated drink pipe is overheated booster, Destruction equipment is continuously run.Slagging also exacerbates corrosion of metal.To remove slagging, shutdown maintenance of often having to is short by then every 3 Once, long then every 6 months shutdown maintenances once, substantially reduce the time that boiler is continuously run, caused huge individual month shutdown maintenance Big economic loss.To prevent slagging, some boilers are also forced to run at low load for a long time.Therefore, dust stratification, the serious shadow of slagging Ring the availability of boiler, exert oneself and security, bring huge economic loss.Therefore, boiler structure and operation are not being changed On the premise of condition, seek a kind of energy-efficient, inexpensive, strong ecad boiler dirt-resistant additive and be just particularly important.
Current dirt-resistant additive types are various, can be divided into 3 classes according to the main component of additive：Based on kaolin Dirt-resistant additive, such as 104,371,790 104327903 A of A, CN of A, CN of patent CN 102786998, though effect is good Consumption is big, freight charges are high, action is slow, fuel tolerance is poor, and kaolinic combination water evaporation heat absorption can reduce boiler efficiency；With Cr2O3, oxidant, adsorbent be main component chromium base dirt-resistant additive, such as patent CN 104845698 A, CN 104910996 103060051 A of A, CN, though it is fast to work, effect is general, and fuel tolerance is poor, so being difficult to promote；With Al2O3Pure material and SiO2Oxide dirt-resistant additive based on pure material, such as patent CN 104371789 A, CN 104745270 104164270 A of A, CN, though the good cost of raw material of effect is high, fuel tolerance is poor.Above-mentioned three classes dirt-resistant Additive is although each advantageous, but consumption is big, freight charges are high, action is slow, the inferior position of fuel tolerance difference causes it to use scope It is very limited, is extremely difficult to popularization truly.So a kind of energy-efficient, inexpensive, strong ecad pot of research and development Stove dirt-resistant additive is particularly important.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind it is energy-efficient, low into Originally, the boiler dirt-resistant additive of strong ecad and its preparation and application.
The purpose of the present invention can be achieved through the following technical solutions：A kind of boiler dirt-resistant additive, its feature exists In the additive includes the component of following parts by weight：
In above-mentioned ore, MnWO is contained in tungsten ore4, MnWO4Dirt-resistant effect is fabulous, with the part in ash content under high temperature Inorganic elements combines to form high-melting-point tungsten thing, improves grey component, significantly improves ash content fusing point, and coal adaptability is excellent It is good；The main component of gangue is Al2O3、SiO2；The main component of bauxite is Al2O3, Al3(SiO3)3；It is main in sandstone Composition is SiO2；Al2O3、SiO2、Al3(SiO3)3Good alkali metal conversion ratio is shown, alkali metal can be converted into stabilization Alkali metal aluminosilicate, significantly reduces alkali metal corrosion and alkali metal stains；Contain Cr in chromite2O3, the material plays Booster action, promote to be changed into crystalline state from glassy state by above-mentioned reacted cinder, further make ash content rapid shaping, prevent Flowable state cinder stains boiler.
It is preferred that, the sandstone includes the one or more in gneiss, sea sand, river sand or Desert Sand.
It is preferred that, the additive can also include 1~5 part of pyrolusite.There is abundant MnO in pyrolusite2, MnO2 As catalyst, the dirt-resistant reaction of the catalysis above improves reaction rate, and stable dirt-resistant effect improves coal adaptability.
A kind of preparation method of boiler dirt-resistant additive as described above, comprises the following steps：Each component is crushed, so It is well mixed according to parts by weight afterwards, produce the boiler dirt-resistant additive.
Each component is crushed to particle diameter less than 200 μm.
A kind of application of the boiler dirt-resistant additive obtained using preparation method as described above, the additive is used for coal dust The dirt-resistant of boiler or fluidized-bed combustion boiler.
When boiler is pulverized-coal fired boiler, the application comprises the following steps：The additive prepared and fire coal are sent in the lump Enter coal pulverizer to be crushed and mixed, obtained mixture sequentially passes through mill separator, pulverized-coal collector and separated, then Storage, when in use, pulverized-coal fired boiler is sent into by powder feeding blower fan.
When boiler is fluidized-bed combustion boiler, the application comprises the following steps：By the additive prepared and desulfurizing agent powder Material mixing storage, then sends into fluidized-bed combustion boiler by powder feeding blower fan.
Using when, the weight ratio of fuel and additive is 100 in the pulverized-coal fired boiler or fluidized-bed combustion boiler：(0.1~3).
Compared with prior art, beneficial effects of the present invention are embodied in following several respects：
(1) formula of the invention is using the ore easily obtained, and cost is low, and with more preferable soil resistant effect and coal Plant adaptability；
(2) prepare simple, using simple, application prospect is big.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementations Example.
Embodiment 1
Prepare boiler dirt-resistant additive of the present invention：The dirt-resistant additive of the present embodiment presses 20 parts of tungsten ore, gangue 15 parts, 25 parts of bauxite, 10 parts of chromite, 20 parts of gneiss, 10 parts of Desert Sand, 3 parts of pyrolusite mass fraction prepare.
Preparation method：Each component is first crushed to maximum particle diameter less than 200 μm, then again by each component according to mass fraction It is well mixed.
The application method of this dirt-resistant additive is as follows：
Desulfurizing agent feed bin is stored in after the additive prepared is mixed with desulfurizing agent powder, is finally sent under conveying wind effect Fluidized bed.
The usage amount of boiler dirt-resistant additive of the present invention is：The mass ratio of this additive and boiler oil is 0.3: 100。
The boiler dirt-resistant additive application that the present embodiment is provided is to certain 135MW bituminous rock circulating fluidized bed boiler of power station On, monitored, as a result shown under conditions of steam generator system is normally run by long-play：Ash content is with alkali metal aluminosilicate The ratio that form is present is 90%, measures ash fusion point for 1475 DEG C, reduces the dust stratification as caused by alkali vapor, slagging and heat-transfer surface Etching problem, improves the utilization ratio of equipment, prolonged boiler life-span.And boiler continuous operating time reaches 258 days, during which pot Stove items service data normal table.
Embodiment 2
Using formula similar to Example 1 and preparation method and application method, difference is：
(1) parts by weight of each component are as follows：25 parts of tungsten ore, 10 parts of gangue, 30 parts of bauxite, 15 parts of chromite, sea 35 parts of sand, 5 parts of pyrolusite.
(2) mass ratio of additive and boiler oil is 3: 100.
Through actual test, the ratio that ash content is present in alkali metal aluminosilicate form is 92%, and it is 1501 to measure ash fusion point DEG C, the dust stratification as caused by alkali vapor, slagging and heat-transfer surface etching problem are equally reduced, the utilization ratio of equipment is improved, prolongs Long boiler life.Boiler continuous operating time reaches 269 days, during which the every service data normal table of boiler.
Embodiment 3
Using formula and preparation method similar to Example 1, difference is：
(1) parts by weight of each component are as follows：15 parts of tungsten ore, 20 parts of gangue, 20 parts of bauxite, 5 parts of chromite, river sand 25 parts, 1 part of pyrolusite.
(2) additive obtained by the present embodiment is used for the mass ratio of certain 350MW boiler using brown coal, additive and boiler oil For 0.1: 100.
(3) application process：The additive prepared and the coal-fired coal pulverizer of feeding in the lump are crushed and mixed, is obtained Mixture sequentially passes through mill separator, pulverized-coal collector and separated, and is then store in coal store, when in use, by sending Powder blower fan sends into pulverized-coal fired boiler.
Through actual test, the ratio that ash content is present in alkali metal aluminosilicate form is 88%, and it is 1463 to measure ash fusion point DEG C, the dust stratification as caused by alkali vapor, slagging and heat-transfer surface etching problem are equally reduced, the utilization ratio of equipment is improved, prolongs Long boiler life.Boiler continuous operating time reaches 240 days, during which the every service data normal table of boiler.

Claims (9)

1. a kind of boiler dirt-resistant additive, it is characterised in that the additive includes the component of following parts by weight：
2. a kind of boiler dirt-resistant additive according to claim 1, it is characterised in that the sandstone include gneiss, One or more in sea sand, river sand or Desert Sand.
3. a kind of boiler dirt-resistant additive according to claim 1, it is characterised in that the additive includes 1~5 part Pyrolusite.
4. the preparation method of a kind of boiler dirt-resistant additive as described in claims 1 to 3 is any, it is characterised in that described Preparation method comprises the following steps：Each component is crushed, it is then well mixed according to parts by weight, produce the boiler dirt-resistant and add Plus agent.
5. the preparation method of a kind of boiler dirt-resistant additive according to claim 4, it is characterised in that each component is crushed It is less than 200 μm to particle diameter.
6. a kind of application of the additive as described in claims 1 to 3 is any, it is characterised in that the additive is used for pulverized-coal fired boiler Or the dirt-resistant of fluidized-bed combustion boiler.
7. the application of a kind of boiler dirt-resistant additive according to claim 6, it is characterised in that when boiler is coal dust pot During stove, the application comprises the following steps：The additive prepared and the coal-fired coal pulverizer of feeding in the lump are crushed with being mixed, Obtained mixture sequentially passes through mill separator, pulverized-coal collector and separated, and then stores, when in use, passes through powder feeding Blower fan sends into pulverized-coal fired boiler.
8. the application of a kind of boiler dirt-resistant additive according to claim 6, it is characterised in that when boiler is fluid bed During boiler, the application comprises the following steps：The additive prepared is mixed into storage with desulfurizing agent powder, then passes through powder feeding Blower fan sends into fluidized-bed combustion boiler.
9. the application of a kind of boiler dirt-resistant additive according to claim 6, it is characterised in that when applying, the coal The weight ratio of fuel and additive is 100 in powder boiler or fluidized-bed combustion boiler：(0.1~3).
CN201710463393.3A 2017-06-19 2017-06-19 Boiler anti-contamination additive and preparation and application thereof Active CN107267251B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108384597A (en) * 2018-02-06 2018-08-10 武汉凯迪绿色能源开发运营有限公司 Biomass recirculating fluidized bed boiler anti-coking additive and its preparation and application method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101475864A (en) * 2009-01-19 2009-07-08 赵楠 Non-sodium chloride environment-friendly type coal-saving combustion adjuvant special for cement
CN102585966A (en) * 2012-03-07 2012-07-18 哈尔滨巨龙节能设备经销有限责任公司 Combustion-supporting decoking coal saving agent
CN103627468A (en) * 2013-07-31 2014-03-12 陈方 Novel decoking agent for fire coal
CN105132075A (en) * 2015-08-14 2015-12-09 上海理工大学 Eastern Junggar coal slagging and contamination improvement additive and application method thereof
CN106190430A (en) * 2016-08-24 2016-12-07 郴州回康科技有限责任公司 A kind of desulphurization denitration combustion adjuvant and the application in fire coal thereof
CN106635242A (en) * 2016-12-07 2017-05-10 江西稀有金属钨业控股集团有限公司 Method and device for utilizing scheelite concentrate smelting slag and application of scheelite concentrate smelting slag

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101475864A (en) * 2009-01-19 2009-07-08 赵楠 Non-sodium chloride environment-friendly type coal-saving combustion adjuvant special for cement
CN102585966A (en) * 2012-03-07 2012-07-18 哈尔滨巨龙节能设备经销有限责任公司 Combustion-supporting decoking coal saving agent
CN103627468A (en) * 2013-07-31 2014-03-12 陈方 Novel decoking agent for fire coal
CN105132075A (en) * 2015-08-14 2015-12-09 上海理工大学 Eastern Junggar coal slagging and contamination improvement additive and application method thereof
CN106190430A (en) * 2016-08-24 2016-12-07 郴州回康科技有限责任公司 A kind of desulphurization denitration combustion adjuvant and the application in fire coal thereof
CN106635242A (en) * 2016-12-07 2017-05-10 江西稀有金属钨业控股集团有限公司 Method and device for utilizing scheelite concentrate smelting slag and application of scheelite concentrate smelting slag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108384597A (en) * 2018-02-06 2018-08-10 武汉凯迪绿色能源开发运营有限公司 Biomass recirculating fluidized bed boiler anti-coking additive and its preparation and application method

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