CN108485751A - Pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant and preparation method thereof, application method - Google Patents
Pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant and preparation method thereof, application method Download PDFInfo
- Publication number
- CN108485751A CN108485751A CN201810291975.2A CN201810291975A CN108485751A CN 108485751 A CN108485751 A CN 108485751A CN 201810291975 A CN201810291975 A CN 201810291975A CN 108485751 A CN108485751 A CN 108485751A
- Authority
- CN
- China
- Prior art keywords
- oxide
- combustion adjuvant
- rare earth
- blast furnace
- desulphurization denitration
- 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
Classifications
-
- 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
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The present invention provides a kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant and preparation method thereof, application method, the combustion adjuvant is made of the raw material of following weight percent：Manganese dioxide 18~23%, iron oxide 5~8%, barium carbonate 9~13%, calcium oxide 10~16%, sodium carbonate 5~8%, rare earth oxide 10~16%, titanium dioxide 2~6%, potassium nitrate 3~6%, surplus are activated carbon；The rare earth oxide by following weight percent raw material：Yttrium oxide 40~55%, lanthana 25~35%, indium oxide 20~30%；The average grain diameter of the rare earth oxide is 10~40 μm；Inventive desulfurization denitration combustion adjuvant is notable to the combustion-supporting effect of coal dust, can effectively improve the efficiency of combustion of coal dust, and effectively reduce NOxAnd SOxDischarge, achieve energy-saving and emission reduction purposes.
Description
Technical field
The present invention relates to combustion adjuvant technical fields, and in particular to a kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant and its system
Preparation Method, application method.
Background technology
Due to the energy resource structure feature of China's " rich coal, oil-poor, few gas ", in the period of considerably long in China be difficult to change
Become the energy consumption structure based on coal.The traditional combustion mode of coal can not achieve the efficient utilization of coal at present, cause resource
Significant wastage, simultaneously because in coal the elements such as N, S presence, when burning will produce a large amount of SOx、NOxEqual polluted gas and again
The pollutants such as metal, polycyclic aromatic hydrocarbon, impact environment.
Burning of coal process is complicated, is generally divided into 3 initial Volatile, volatile combustion and fixed carbon burning ranks
Section.1st stage was the pyrolytic reaction of coal, and organic matter thermally decomposes in coal in this stage, is broken from macromolecular
Side chain and functional group form volatile matter, while being pyrolyzed resultant product generation thermal polycondensation and reacting to form fixed carbon.In the 2nd phase temperature
When reaching ignition point, combustion reaction occurs for the volatile matter of coal, this combustion mechanism is complicated, is swift in response.The burning of usual volatile matter
Speed depends on its speed of separating out.3rd stage was that with oxygen oxidation reaction occurs for carbon at high temperature.
Following reaction occurs in the entire combustion process of coal：1. key reaction is C and O2Burning generates CO2；2. in O2No
CO is generated when fully or temperature is too high；3. C and CO2Reaction generates CO under certain condition；4. N, S element and O in coal2Reaction production
The a large amount of polluted gas such as raw SOx, NO.
Pulverized coal injection in blast furnace has become countries in the world blast furnace response environment pollution, Optimization of Energy Structure, while improving enterprise
The mainstream technology of industry economic benefit.Under current crude fuel and process conditions, when blast furnace injection coal ratio is more than certain threshold
After value, it will lead to spray into the coal combustion rate reduction in blast furnace, and then reduce coal-to-coke replacement, increase coke load, influence height
The normal stable smooth operation of stove, makes troubles to blast furnace operating.Coal dust combustion supporting catalyst is to improve coal dust under the conditions of blast furnace blowing
The advantageous measures of combustion process, when coal injection, add a certain proportion of combustion adjuvant, can largely improve its burning effect
Rate weakens adverse effect of the unburned coal powder to blast furnace process, and then blast furnace is made to obtain optimum economic benefit.Therefore in recent years, lead to
Addition combustion adjuvant is crossed increasingly to be taken seriously with the research for improving coal combustion performance.
Invention content
The purpose of the present invention is to provide a kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant and preparation method thereof, users
Method, the coal dust combustion adjuvant is notable to the combustion-supporting effect of coal injection, can effectively improve the efficiency of combustion of coal dust, can effectively reduce
NOxAnd SOxDischarge, achieve energy-saving and emission reduction purposes.
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, the combustion adjuvant are made of the raw material of following weight percent：
Manganese dioxide 18~23%, iron oxide 5~8%, barium carbonate 9~13%, calcium oxide 10~16%, sodium carbonate 5~8%, rare earth
Oxide 10~16%, titanium dioxide 2~6%, potassium nitrate 3~6%, surplus are activated carbon；
The rare earth oxide by following weight percent raw material：Yttrium oxide 40~55%, lanthana 25~35%, oxygen
Change indium 20~30%；The average grain diameter of the rare earth oxide is 10~40 μm.
Preferably, the combustion adjuvant is made of the raw material of following weight percent：Manganese dioxide 20~22.5%, iron oxide
6~7%, barium carbonate 10~12%, calcium oxide 11~14%, sodium carbonate 5.5~6.5%, rare earth oxide 11~14.5%, two
Titanium oxide 4~5.5%, potassium nitrate 5~6%, surplus are activated carbon.
Preferably, the combustion adjuvant is made of the raw material of following weight percent：Manganese dioxide 21.5%, iron oxide 7%,
Barium carbonate 11.2%, calcium oxide 13%, sodium carbonate 5.5%, rare earth oxide 12.2%, titanium dioxide 4.5%, potassium nitrate
4.8%, surplus is activated carbon.
Preferably, the rare earth oxide by following weight percent raw material：Yttrium oxide 50%, lanthana 28%, oxygen
Change indium 22%.
Preferably, the average grain diameter of the rare earth oxide is 15~20 μm.
The preparation method of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant of the present invention, includes the following steps：
(1) each raw material is weighed by recipe ratio；
(2) activated carbon is crushed and cross 30~50 mesh sieve, backward activated carbon coarse powder in addition in addition to rare earth oxide
Raw material, be uniformly mixed, be subsequently placed in grinder and grind, and cross 100~140 mesh sieve, obtain mixture；
(3) mixture is uniformly mixed with rare earth oxide to get the pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant.
Preferably, in the step (2), 130 mesh sieve is crossed, mixture is obtained.
The application method of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant of the present invention, includes the following steps：It is added into coal dust
The coal dust combustion adjuvant of coal dust gross mass 0.8~1.6% is uniformly mixed.
The beneficial effects of the invention are as follows：
Combustion adjuvant combustion-supporting effect of the present invention is good, and the ingredients such as manganese oxide, barium carbonate, calcium oxide can effectively improve the volatilization of coal dust
The thermal discharge for dividing burst size and coal dust, fire behaviour and burnout index to coal dust have larger facilitation.It is added simultaneously
Calcium oxide there is good sulfur fixation, and iron oxide, sodium carbonate, titanium dioxide consolidate sulphur with certain catalysis to calcium oxide
Effect, effective item improve sulfur-fixing rate.Addition titanium dioxide, sodium carbonate can be by effectively reducing the discharge of NO.
The rare earth oxide being added in the present invention has coal dust as manganese oxide, barium carbonate, calcium oxide good
Catalytic effect.Under the action of rare earth oxide, the lattice structure of carbon can be made to be distorted, promote the volatilization of more difficult cracking in coal
Divide and discharge in advance, greatly reduces the start temperature that combustion reaction occurs for fixed carbon, improve the efficiency of combustion of coal dust.It is dilute simultaneously
Yttrium oxide, lanthana, indium oxide fiting effect are good in earth compounds, and combustion-supporting effect, which is better than, only uses one of which rare earth oxygen
Compound.
The present invention is notable to the combustion-supporting effect of coal injection in combustion adjuvant, can effectively improve the efficiency of combustion of coal dust, can have
Effect reduces NOxAnd SOxDischarge, achieve energy-saving and emission reduction purposes.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Embodiment 1：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, is made of the raw material of following weight percent：Manganese dioxide
21.5%, iron oxide 7%, barium carbonate 11.2%, calcium oxide 13%, sodium carbonate 5.5%, rare earth oxide 12.2%, titanium dioxide
Titanium 4.5%, potassium nitrate 4.8%, surplus are activated carbon.
Rare earth oxide by following weight percent raw material：Yttrium oxide 50%, lanthana 28%, indium oxide 22%；It is dilute
The average grain diameter of native oxide is 15 μm.
The preparation method of above-mentioned pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, includes the following steps：
(1) each raw material is weighed by recipe ratio；
(2) activated carbon is crushed to and is crossed 40 mesh sieve, backward activated carbon coarse powder in original of the addition in addition to rare earth oxide
Material is uniformly mixed, is subsequently placed in grinder and grinds, and crosses 120 mesh sieve, obtains mixture；
(3) mixture is uniformly mixed with rare earth oxide to get the pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant.
Embodiment 2：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, is made of the raw material of following weight percent：Manganese dioxide
23%, iron oxide 5%, barium carbonate 13%, calcium oxide 12%, sodium carbonate 7%, rare earth oxide 13%, titanium dioxide 4%, nitre
Sour potassium 6%, surplus are activated carbon.
Rare earth oxide by following weight percent raw material：Yttrium oxide 55%, lanthana 25%, indium oxide 25%；It is dilute
The average grain diameter of native oxide is 10 μm.
The preparation method of above-mentioned pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, includes the following steps：
(1) each raw material is weighed by recipe ratio；
(2) activated carbon is crushed to and is crossed 50 mesh sieve, backward activated carbon coarse powder in original of the addition in addition to rare earth oxide
Material is uniformly mixed, is subsequently placed in grinder and grinds, and sieve with 100 mesh sieve, obtain mixture；
(3) mixture is uniformly mixed with rare earth oxide to get the pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant.
Embodiment 3：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, is made of the raw material of following weight percent：Manganese dioxide
20%, iron oxide 8%, barium carbonate 9%, calcium oxide 10%, sodium carbonate 8%, rare earth oxide 10%, titanium dioxide 2%, nitric acid
Potassium 5%, surplus are activated carbon.
Rare earth oxide by following weight percent raw material：Yttrium oxide 40%, lanthana 35%, indium oxide 25%；It is dilute
The average grain diameter of native oxide is 40 μm.
The preparation method of above-mentioned pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, includes the following steps：
(1) each raw material is weighed by recipe ratio；
(2) activated carbon is crushed to and is crossed 30 mesh sieve, backward activated carbon coarse powder in original of the addition in addition to rare earth oxide
Material is uniformly mixed, is subsequently placed in grinder and grinds, and crosses 140 mesh sieve, obtains mixture；
(3) mixture is uniformly mixed with rare earth oxide to get the pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant.
Embodiment 4：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, is made of the raw material of following weight percent：Manganese dioxide
18%, iron oxide 7%, barium carbonate 10%, calcium oxide 16%, sodium carbonate 5%, rare earth oxide 16%, titanium dioxide 6%, nitre
Sour potassium 3%, surplus are activated carbon.
Rare earth oxide by following weight percent raw material：Yttrium oxide 40%, lanthana 30%, indium oxide 30%；It is dilute
The average grain diameter of native oxide is 20 μm.
The preparation method of above-mentioned pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, includes the following steps：
(1) each raw material is weighed by recipe ratio；
(2) activated carbon is crushed to and is crossed 40 mesh sieve, backward activated carbon coarse powder in original of the addition in addition to rare earth oxide
Material is uniformly mixed, is subsequently placed in grinder and grinds, and crosses 130 mesh sieve, obtains mixture；
(3) mixture is uniformly mixed with rare earth oxide to get the pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant.
Embodiment 5：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, combustion adjuvant are made of the raw material of following weight percent：Dioxy
Change manganese 22.5%, iron oxide 6%, barium carbonate 12%, calcium oxide 11%, sodium carbonate 6.5%, rare earth oxide 14.5%, dioxy
Change titanium 5.5%, potassium nitrate 6%, surplus is activated carbon.
Rare earth oxide by following weight percent raw material：Yttrium oxide 50%, lanthana 30%, indium oxide 20%；It is dilute
The average grain diameter of native oxide is 15 μm.
The preparation method is the same as that of Example 1 for above-mentioned pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant.
Embodiment 6：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, combustion adjuvant are made of the raw material of following weight percent：Dioxy
Change manganese 20%, iron oxide 7%, barium carbonate 10%, calcium oxide 14%, sodium carbonate 5.5%, rare earth oxide 11%, titanium dioxide
4%, potassium nitrate 5%, surplus are activated carbon.
Rare earth oxide by following weight percent raw material：Yttrium oxide 45%, lanthana 30%, indium oxide 25%；It is dilute
The average grain diameter of native oxide is 20 μm.
The preparation method of above-mentioned pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant is the same as embodiment 2.
The application method of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant in the embodiment of the present invention 1~6, including following step
Suddenly：The coal dust combustion adjuvant of coal dust gross mass 0.8~1.6% is added into coal dust, is uniformly mixed.
Comparative example 1：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, is made of the raw material of following weight percent：Manganese dioxide
21.5%, iron oxide 7%, barium carbonate 11.2%, calcium oxide 13%, sodium carbonate 5.5%, yttrium oxide 12.2%, titanium dioxide
4.5%, potassium nitrate 4.8%, surplus are activated carbon.
The average grain diameter of yttrium oxide is 15 μm.
The preparation method is the same as that of Example 1.
Comparative example 2：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, is made of the raw material of following weight percent：Manganese dioxide
21.5%, iron oxide 7%, barium carbonate 11.2%, calcium oxide 13%, sodium carbonate 5.5%, lanthana 12.2%, titanium dioxide
4.5%, potassium nitrate 4.8%, surplus are activated carbon.
The average grain diameter of lanthana is 15 μm.
The preparation method is the same as that of Example 1.
Comparative example 3：
A kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, is made of the raw material of following weight percent：Manganese dioxide
21.5%, iron oxide 7%, barium carbonate 11.2%, calcium oxide 13%, sodium carbonate 5.5%, indium oxide 12.2%, titanium dioxide
4.5%, potassium nitrate 4.8%, surplus are activated carbon.
The average grain diameter of indium oxide is 15 μm.
The preparation method is the same as that of Example 1.
Performance test：
Common coal dust is divided into 10 groups, the 1st~9 group is experimental group, and the 10th group is blank group, to the 1st~6 group of experimental group
In common coal dust in be separately added into desulphurization denitration combustion adjuvant in Examples 1 to 6, and be uniformly mixed, mixed coal powder be made；The
The desulphurization denitration combustion adjuvant being separately added into common coal dust in 7~9 groups of experimental groups in comparative example 1~3, and be uniformly mixed, it makes
Obtain mixed coal powder；The addition of desulphurization denitration combustion adjuvant is 1.3% of coal dust gross mass contained by every group of experimental group.
100g mixed coal powders are weighed respectively in the 1st~9 group of experimental group, and the common coal dusts of 100g are weighed in control group, it
The combustion rate of each group of coal dust is measured afterwards, and specific test result is as shown in table 1.
1 coal combustion rate of table
| Project | Wind-warm syndrome/DEG C | Furnace temperature/DEG C | Combustion rate/% |
| Experimental group 1 | 1050 | 1250 | 78.52 |
| Experimental group 2 | 1050 | 1250 | 78.16 |
| Experimental group 3 | 1050 | 1250 | 78.06 |
| Experimental group 4 | 1050 | 1250 | 77.98 |
| Experimental group 5 | 1050 | 1250 | 78.26 |
| Experimental group 6 | 1050 | 1250 | 78.41 |
| Experimental group 7 | 1050 | 1250 | 74.25 |
| Experimental group 8 | 1050 | 1250 | 74.01 |
| Experimental group 9 | 1050 | 1250 | 73.29 |
| Blank group | 1050 | 1250 | 65.32 |
Coal dust added with the combustion adjuvant in the embodiment of the present invention 1~6 in addition to higher combustion rate, simultaneously added with
Object is closed in gas cure of the coal dust of combustion adjuvant of the present invention than common coal dust reduces 30~45%, than the soot dust granule of common coal dust
Object reduces 55~65%.Simultaneously by the data comparison in data and the experimental group 7~9 in experimental group 1~6 of the present invention it is found that
Yttrium oxide, lanthana, indium oxide fiting effect are good in rare earth compound, and combustion-supporting effect, which is better than, only uses one of which rare earth
Oxide.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, which is characterized in that the combustion adjuvant is by following weight percent
Raw material is made：Manganese dioxide 18~23%, iron oxide 5~8%, barium carbonate 9~13%, calcium oxide 10~16%, sodium carbonate 5~
8%, rare earth oxide 10~16%, titanium dioxide 2~6%, potassium nitrate 3~6%, surplus are activated carbon；
The rare earth oxide by following weight percent raw material：Yttrium oxide 40~55%, lanthana 25~35%, indium oxide
20~30%；The average grain diameter of the rare earth oxide is 10~40 μm.
2. pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant according to claim 1, which is characterized in that the combustion adjuvant by with
The raw material of lower weight percent is made：Manganese dioxide 20~22.5%, iron oxide 6~7%, barium carbonate 10~12%, calcium oxide
11~14%, sodium carbonate 5.5~6.5%, rare earth oxide 11~14.5%, titanium dioxide 4~5.5%, potassium nitrate 5~6%,
Surplus is activated carbon.
3. pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant according to claim 2, which is characterized in that the combustion adjuvant by with
The raw material of lower weight percent is made：Manganese dioxide 21.5%, iron oxide 7%, barium carbonate 11.2%, calcium oxide 13%, carbonic acid
Sodium 5.5%, rare earth oxide 12.2%, titanium dioxide 4.5%, potassium nitrate 4.8%, surplus are activated carbon.
4. pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant according to claim 1, which is characterized in that the rare earth oxide
By the raw material of following weight percent：Yttrium oxide 50%, lanthana 28%, indium oxide 22%.
5. pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant according to claim 1, which is characterized in that the rare earth oxide
Average grain diameter be 15~20 μm.
6. according to the preparation method of Claims 1 to 5 any one of them pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, feature
It is, includes the following steps：
(1) each raw material is weighed by recipe ratio；
(2) activated carbon is crushed to and is crossed 30~50 mesh sieve, backward activated carbon coarse powder in original of the addition in addition to rare earth oxide
Material is uniformly mixed, is subsequently placed in grinder and grinds, and crosses 100~140 mesh sieve, obtains mixture；
(3) mixture is uniformly mixed with rare earth oxide to get the pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant.
7. the preparation method of pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant according to claim 6, which is characterized in that described
In step (2), 130 mesh sieve is crossed, mixture is obtained.
8. according to the application method of Claims 1 to 5 any one of them pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant, feature
It is, includes the following steps：The coal dust combustion adjuvant of coal dust gross mass 0.8~1.6% is added into coal dust, is uniformly mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291975.2A CN108485751B (en) | 2018-04-03 | 2018-04-03 | Desulfurization and denitrification combustion improver for pulverized coal injected into blast furnace and preparation method and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291975.2A CN108485751B (en) | 2018-04-03 | 2018-04-03 | Desulfurization and denitrification combustion improver for pulverized coal injected into blast furnace and preparation method and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108485751A true CN108485751A (en) | 2018-09-04 |
| CN108485751B CN108485751B (en) | 2020-12-18 |
Family
ID=63318325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810291975.2A Active CN108485751B (en) | 2018-04-03 | 2018-04-03 | Desulfurization and denitrification combustion improver for pulverized coal injected into blast furnace and preparation method and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108485751B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111004660A (en) * | 2019-12-25 | 2020-04-14 | 王研 | High-temperature in-situ combustion-supporting method for fire coal |
| CN111575079A (en) * | 2020-05-26 | 2020-08-25 | 镇江市蓝火环保能源有限公司 | Raw material coal powder for environment-friendly coal powder production and treatment method thereof |
| CN112280577A (en) * | 2020-09-27 | 2021-01-29 | 四川轻化工大学 | Preparation and processing method of blast furnace injection biomass coke |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699526A (en) * | 2005-06-13 | 2005-11-23 | 华中科技大学 | Coal combustion and sulfur fixation composite additives |
| CN101220312A (en) * | 2008-01-29 | 2008-07-16 | 广西庆荣耐火材料有限公司 | Combustion improver for catalytic combustion of blast furnace coal injection |
| CN101302456A (en) * | 2007-07-30 | 2008-11-12 | 陈睿红 | Highly effective coal combustion improver and preparation thereof |
| CN105349217A (en) * | 2015-11-18 | 2016-02-24 | 广西阔能霸能源科技开发有限责任公司 | Activated-carbon-containing energy saving fire coal synergist |
| CN106350147A (en) * | 2016-10-24 | 2017-01-25 | 马鞍山科宇环境工程有限公司 | High-efficiency coal-saving combustion-supporting denitration agent and preparation method thereof |
| CN107739642A (en) * | 2017-11-13 | 2018-02-27 | 李旺 | A kind of solid sulphur denitration coke cleaning additive of coal-burning boiler |
-
2018
- 2018-04-03 CN CN201810291975.2A patent/CN108485751B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699526A (en) * | 2005-06-13 | 2005-11-23 | 华中科技大学 | Coal combustion and sulfur fixation composite additives |
| CN101302456A (en) * | 2007-07-30 | 2008-11-12 | 陈睿红 | Highly effective coal combustion improver and preparation thereof |
| CN101220312A (en) * | 2008-01-29 | 2008-07-16 | 广西庆荣耐火材料有限公司 | Combustion improver for catalytic combustion of blast furnace coal injection |
| CN105349217A (en) * | 2015-11-18 | 2016-02-24 | 广西阔能霸能源科技开发有限责任公司 | Activated-carbon-containing energy saving fire coal synergist |
| CN106350147A (en) * | 2016-10-24 | 2017-01-25 | 马鞍山科宇环境工程有限公司 | High-efficiency coal-saving combustion-supporting denitration agent and preparation method thereof |
| CN107739642A (en) * | 2017-11-13 | 2018-02-27 | 李旺 | A kind of solid sulphur denitration coke cleaning additive of coal-burning boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111004660A (en) * | 2019-12-25 | 2020-04-14 | 王研 | High-temperature in-situ combustion-supporting method for fire coal |
| CN111575079A (en) * | 2020-05-26 | 2020-08-25 | 镇江市蓝火环保能源有限公司 | Raw material coal powder for environment-friendly coal powder production and treatment method thereof |
| CN112280577A (en) * | 2020-09-27 | 2021-01-29 | 四川轻化工大学 | Preparation and processing method of blast furnace injection biomass coke |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108485751B (en) | 2020-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102061212B (en) | Fire coal efficient catalysis combustion-supporting agent and preparation method and use method thereof | |
| CN108485751A (en) | Pulverized coal injection in blast furnace desulphurization denitration combustion adjuvant and preparation method thereof, application method | |
| CN103881782B (en) | The agent of fluidized-bed gasification furnace fly ash granule and working method thereof | |
| CN109384225B (en) | Method for producing desulfurization and denitrification active carbon | |
| CN103013616B (en) | Catalytic combustion improver for blast furnace coal injection and application method thereof | |
| CN105176618A (en) | Clean coal and production method thereof | |
| CN106190430A (en) | A kind of desulphurization denitration combustion adjuvant and the application in fire coal thereof | |
| CN114410362A (en) | Biomass-based fire coal additive and application thereof | |
| CN1401747A (en) | Spray blowing coal powder catalytic combustion adjuvant for blast furnace, and production method thereof | |
| CN107739642A (en) | A kind of solid sulphur denitration coke cleaning additive of coal-burning boiler | |
| CN102585905B (en) | Bituminous coal fixed bed continuous gasification method | |
| CN101767041A (en) | Preparation method of flue gas denitration catalyst | |
| CN114891549A (en) | Desulfurizing agent and preparation method and application thereof | |
| CN114635035B (en) | Sintering method of solid-free fossil fuel based on coupling heat supply of multicomponent gas medium and waste biomass | |
| CN109279770A (en) | The desulphurization during combustion of petroleum coke and the method that reduces mirabilite content are used in a kind of glass industry | |
| CN109806913B (en) | Denitration catalyst applied to cement plant and preparation method thereof | |
| CN104388145B (en) | High-efficiency environment-friendly synergistic agent for coal | |
| CN101705133A (en) | Efficient coal-fired combustion-supporting desulfurization additive and preparation method thereof | |
| CN103131513A (en) | Thermal power plant fire coal combustion supporting and sulfur fixation composition method | |
| CN103131519A (en) | Boiler fire coal sulfur fixation composition method | |
| CN112665404A (en) | Method for reducing emission of nitric oxide in rotary kiln waste gas | |
| CN111185189A (en) | Method for preparing yolk-egg white type SCR denitration catalyst and application | |
| CN110917831A (en) | Coal-fired flue gas desulfurizer and preparation method thereof | |
| CN101440321A (en) | Efficient reburning denitration mixed fuel made from scrap tire and preparation thereof | |
| CN103131516A (en) | Cement plant fire coal combustion supporting and sulfur fixation composition method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 238100 in Qingxi Town Industrial Park, Hanshan County, Ma'anshan City, Anhui Province Patentee after: Ma'anshan Keyu environmental protection equipment Co.,Ltd. Address before: 243000 Qingxi Town Industrial Park, Hanshan County, Ma'anshan, Anhui Patentee before: MAANSHAN KEYU ENVIRONMENT ENGINEERING CO.,LTD. |