CN115216353A - Preparation method of sintered coke powder - Google Patents
Preparation method of sintered coke powder Download PDFInfo
- Publication number
- CN115216353A CN115216353A CN202210840634.2A CN202210840634A CN115216353A CN 115216353 A CN115216353 A CN 115216353A CN 202210840634 A CN202210840634 A CN 202210840634A CN 115216353 A CN115216353 A CN 115216353A
- Authority
- CN
- China
- Prior art keywords
- coke powder
- parts
- preparation
- additive
- fuel
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 45
- 239000000654 additive Substances 0.000 claims abstract description 25
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 230000000996 additive effect Effects 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims abstract description 21
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 11
- 239000011593 sulfur Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 238000007664 blowing Methods 0.000 claims description 20
- 239000003245 coal Substances 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 17
- 238000000227 grinding Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 15
- 238000005245 sintering Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 10
- 239000004327 boric acid Substances 0.000 claims description 10
- 238000011049 filling Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 239000002551 biofuel Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000004449 solid propellant Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 5
- 229920000896 Ethulose Polymers 0.000 claims description 5
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 5
- 229910002651 NO3 Inorganic materials 0.000 claims description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 229910021538 borax Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 239000002803 fossil fuel Substances 0.000 claims description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000004317 sodium nitrate Substances 0.000 claims description 5
- 235000010344 sodium nitrate Nutrition 0.000 claims description 5
- 239000004328 sodium tetraborate Substances 0.000 claims description 5
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 235000011148 calcium chloride Nutrition 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- -1 volatile matters Chemical compound 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000011777 magnesium Substances 0.000 abstract description 3
- 229910052749 magnesium Inorganic materials 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 231100000614 poison Toxicity 0.000 abstract description 2
- 239000003440 toxic substance Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 10
- 239000000571 coke Substances 0.000 description 5
- 238000004939 coking Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention belongs to the technical field of coke powder preparation, and particularly relates to a preparation material of sintered coke powder, which comprises 10-15 parts of dry-base fixed carbon, 5-9 parts of ash, 3-8 parts of volatile components, 2-7 parts of sulfur, 12-17 parts of water, 20-25 parts of fuel, 4-9 parts of an additive and 8-12 parts of a combustion improver. According to the invention, the combustion improver is added, so that the material can be more fully combusted in the preparation process, excessive oxide impurities such as silicon, aluminum, iron, magnesium and the like are avoided, the purity of the prepared sintered coke powder is improved, and the preparation requirement is better met; and then, the additive is added into the preparation material, and the corrosivity and toxic substances of the additive are almost set to be 0, so that the gas generated in the preparation of the sintered coke powder has low pollution, and the additive does not corrode preparation equipment.
Description
Technical Field
The invention relates to the technical field of coke powder preparation, in particular to a preparation method of sintered coke powder.
Background
Modern iron and steel united enterprises generally comprise a coking process, a sintering and pelletizing process and an ironmaking process, and the processes are generally attributed to the operation and management of an ironmaking main plant. The metallurgical coke required by the blast furnace is mainly produced by a coking process, a large amount of coke breeze is generated in the processes of coke pushing, cooling, conveying, coke cutting and screening in the production process of the coking process, and a large amount of coke breeze is also generated by screening under a blast furnace ditch; at this time, if the sintered coke powder is not prepared, a certain amount of resources are wasted. However, the preparation method of the sintered coke powder in the current market is easy to cause incomplete combustion integrally, so that more oxide impurities such as silicon, aluminum, iron, magnesium and the like in the sintered coke powder are caused; and the addition of the additive easily causes environmental pollution and equipment corrosion, thereby causing the problem of great reduction of environmental protection.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of sintered coke powder, which solves the problems that the existing preparation method of sintered coke powder in the market is easy to cause incomplete combustion integrally and the addition of additives is easy to cause environmental pollution and equipment corrosion.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a preparation material of sintered coke powder comprises 10-15 parts of dry-base fixed carbon, 5-9 parts of ash, 3-8 parts of volatile components, 2-7 parts of sulfur, 12-17 parts of water and 20-25 parts of fuel, and also comprises 4-9 parts of additives and 8-12 parts of combustion improver; the preparation of the coke powder also comprises the following preparation methods:
s1, firstly, putting dry-basis fixed carbon, ash, volatile components, sulfur and moisture into configuration equipment according to a certain proportion, and then carrying out corresponding grinding and collection;
s2, introducing the substances in the S1 which are ground and collected into a blowing tank, and then filling nitrogen into the top of the blowing tank and filling fluidized air into the bottom of the blowing tank to enable the substances in the S1 to be in a uniform state in the tank;
s3, drying the mixture in the S2 through a powder preparation link of a coal injection system, and grinding again by using a grinder, wherein the grinding time is controlled to be 15-25min;
s4, adding an additive and a combustion improver into the dried substance in the S3, and then fully combusting the mixture by using a furnace; and obtaining a dried sintered coke powder primary body;
s5, crushing the sintered coke powder primary body by adopting a crushing mechanism and a dust removing mechanism, wherein the crushing period is accompanied with the treatment of dust; finally, sintering coke powder is obtained and is guided back to the blowing tank again;
s6, inserting the injection pipeline into a coal feeding machine lower coal pipeline in an inclined mode, and directly injecting sintered coke powder into the grinding machine in an injection mode by using the nitrogen pressure in the injection tank to finish coke powder conveying.
As a preferable technical scheme of the invention, the combustion improver is formed by mixing two or more of bentonite, borax, boric acid, ferric trichloride, sodium nitrate and (NH 4) 2S2O 8.
As a preferable technical scheme of the invention, the additive is prepared from one or two or more of BaO, caO, mgO, mgCl2, caCl2 or carbonate, nitrate, permanganate and borate containing the above oxides, or boric acid, methacrylic acid polymer and ethyl hydroxyethyl cellulose.
As a preferred embodiment of the present invention, the crushing mechanism in S5 may adopt one or more of a roller crusher, a jaw crusher, a gyratory crusher, an impact crusher, a medium speed coal mill, a sand mill and a pneumatic crusher.
As a preferred technical scheme of the invention, the fuel can adopt one or more of solid fuel, liquid fuel, gas fuel, fossil fuel or biofuel.
As a preferred technical scheme of the present invention, the dust removing mechanism in S5 may be one of a bag dust remover, a pulse dust remover, a bin top dust remover, a cyclone dust remover, and a boiler dust remover.
(III) advantageous effects
Compared with the prior art, the invention provides a preparation method of sintered coke powder, which has the following beneficial effects:
1. according to the preparation method of the sintering coke powder, the combustion improver is added, so that the more sufficient combustion of the material can be completed in the preparation process, the excessive oxide impurities such as silicon, aluminum, iron, magnesium and the like are avoided, the purity of the prepared sintering coke powder is improved, and the preparation requirement is better met.
2. According to the preparation method of the sintered coke powder, the additive is added into the preparation material, the corrosivity and toxic substances of the additive are almost set to be 0, so that gas generated in the preparation of the sintered coke powder has low pollution, and the additive does not corrode preparation equipment.
3. According to the preparation method of the sintering coke powder, the crushing mechanism and the dust removal mechanism are arranged, so that the sintering coke powder can be better crushed in the preparation process; and the dust raising phenomenon is difficult to generate during the integral crushing, so that the environment is better protected.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides the following technical scheme: the preparation material of the sintering coke powder comprises 10 parts of dry-basis fixed carbon, 5 parts of ash, 3 parts of volatile matters, 2 parts of sulfur, 12 parts of water and 20 parts of fuel, and is characterized in that: also comprises 4 parts of additive and 8 parts of combustion improver; the preparation of the coke powder also comprises the following preparation methods:
s1, firstly, putting dry-basis fixed carbon, ash, volatile matters, sulfur and moisture into configuration equipment according to a certain proportion, and then correspondingly polishing and collecting;
s2, introducing the substances in the S1 which are polished and collected into a spraying and blowing tank, and then filling nitrogen into the top of the spraying and blowing tank and filling fluidized air into the bottom of the spraying and blowing tank to enable the substances in the S1 to be in a uniform state in the tank;
s3, drying the mixture in the S2 through a powder preparation link of a coal injection system, and grinding again by using a grinder, wherein the grinding time is controlled to be 15-25min;
s4, adding an additive and a combustion improver into the dried substance in the S3, and then fully combusting the mixture by using a furnace; and obtaining a dried sintered coke powder primary body;
s5, crushing the sintered coke powder primary body by adopting a crushing mechanism and a dust removing mechanism, wherein the crushing period is accompanied with the treatment of dust; finally, sintering coke powder is obtained and is guided back to the blowing tank again;
s6, inserting the injection pipeline into a coal feeding machine lower coal pipeline in an inclined mode, and directly injecting sintered coke powder into the grinding machine in an injection mode by using the nitrogen pressure in the injection tank to finish coke powder conveying.
Specifically, the combustion improver is prepared by mixing two or more of bentonite, borax, boric acid, ferric trichloride, sodium nitrate and (NH 4) 2S2O 8.
Specifically, the additive is prepared from one, two or more of BaO, caO, mgO, mgCl2 and CaCl2 or carbonate, nitrate, permanganate and borate containing the oxides, or boric acid, methacrylic acid polymer and ethyl hydroxyethyl cellulose.
Specifically, the crushing mechanism in S5 may be one or more of a roller crusher, a jaw crusher, a gyratory crusher, an impact crusher, a medium speed coal mill, a sand mill, and an airflow crusher.
Specifically, the fuel can be one of solid fuel, liquid fuel, gas fuel, fossil fuel or biofuel or a mixture of the solid fuel, the liquid fuel, the gas fuel and the biofuel.
Specifically, the dust removing mechanism in S5 may be one of a bag dust remover, a pulse dust remover, a bin top dust remover, a cyclone dust remover, and a boiler dust remover.
Example 2
A preparation material of sintered coke powder comprises 13 parts of dry-base fixed carbon, 7 parts of ash, 5 parts of volatile components, 4 parts of sulfur, 14 parts of water, 23 parts of fuel, 6 parts of additive and 10 parts of combustion improver; the preparation of the coke powder also comprises the following preparation methods:
s1, firstly, putting dry-basis fixed carbon, ash, volatile matters, sulfur and moisture into configuration equipment according to a certain proportion, and then correspondingly polishing and collecting;
s2, introducing the substances in the S1 which are polished and collected into a spraying and blowing tank, and then filling nitrogen into the top of the spraying and blowing tank and filling fluidized air into the bottom of the spraying and blowing tank to enable the substances in the S1 to be in a uniform state in the tank;
s3, drying the mixture in the S2 through a powder preparation link of a coal injection system, and grinding again by using a grinder, wherein the grinding time is controlled to be 15-25min;
s4, adding an additive and a combustion improver into the dried substance in the S3, and then fully combusting the mixture by using a furnace; and obtaining a dried sintered coke powder primary body;
s5, crushing the sintered coke powder primary body by adopting a crushing mechanism and a dust removing mechanism, wherein the crushing period is accompanied with the treatment of dust; finally, sintering coke powder is obtained and is guided back to the blowing tank again;
s6, inserting the injection pipeline into a coal feeding machine lower coal pipeline in an inclined mode, and directly injecting sintered coke powder into the grinding machine in an injection mode by using the nitrogen pressure in the injection tank to finish coke powder conveying.
Specifically, the combustion improver is formed by mixing two or more of bentonite, borax, boric acid, ferric trichloride, sodium nitrate and (NH 4) 2S2O 8.
Specifically, the additive is prepared from one, two or more of BaO, caO, mgO, mgCl2 and CaCl2 or carbonate, nitrate, permanganate and borate containing the oxides, or boric acid, methacrylic acid polymer and ethyl hydroxyethyl cellulose.
Specifically, the crushing mechanism in S5 may be one or more of a roller crusher, a jaw crusher, a gyratory crusher, an impact crusher, a medium speed coal mill, a sand mill, and an airflow crusher.
Specifically, the fuel can be one of solid fuel, liquid fuel, gas fuel, fossil fuel or biofuel or a mixture of more or less.
Specifically, the dust removing mechanism in S5 may be one of a bag dust remover, a pulse dust remover, a bin top dust remover, a cyclone dust remover, and a boiler dust remover.
In the embodiment, the mixture ratio of the materials adopts an intermediate value, so that the quality of the sintered coke powder prepared by different mixture ratios can be clearly compared, and the sintered coke powder can be prepared by adopting a better mixture ratio; and the stability of the sintered coke powder after preparation can be better obtained by the mixing ratio of the intermediate value.
Example 3
A preparation material of sintered coke powder comprises 15 parts of dry-base fixed carbon, 9 parts of ash, 8 parts of volatile matter, 7 parts of sulfur, 17 parts of water, 25 parts of fuel, 9 parts of additive and 12 parts of combustion improver; the preparation method of the coke powder also comprises the following preparation methods:
s1, firstly, putting dry-basis fixed carbon, ash, volatile matters, sulfur and moisture into configuration equipment according to a certain proportion, and then correspondingly polishing and collecting;
s2, introducing the substances in the S1 which are polished and collected into a spraying and blowing tank, and then filling nitrogen into the top of the spraying and blowing tank and filling fluidized air into the bottom of the spraying and blowing tank to enable the substances in the S1 to be in a uniform state in the tank;
s3, drying the mixture in the S2 through a powder preparation link of a coal injection system, and grinding again by using a grinder, wherein the grinding time is controlled to be 15-25min;
s4, adding an additive and a combustion improver into the dried substance in the S3, and then fully combusting the mixture by using a furnace; and obtaining a dried sintered coke powder primary body;
s5, crushing the sintered coke powder primary body by adopting a crushing mechanism and a dust removing mechanism, wherein the crushing period is accompanied with the treatment of dust; finally, sintering coke powder is obtained and is guided back to the blowing tank again;
s6, inserting the injection pipeline into a coal feeding machine lower coal pipeline in an inclined mode, and directly injecting sintered coke powder into the grinding machine in an injection mode by using the nitrogen pressure in the injection tank to finish coke powder conveying.
Specifically, the combustion improver is formed by mixing two or more of bentonite, borax, boric acid, ferric trichloride, sodium nitrate and (NH 4) 2S2O 8.
Specifically, the additive is prepared from one, two or more of BaO, caO, mgO, mgCl2 and CaCl2 or carbonate, nitrate, permanganate and borate containing the oxides, or boric acid, methacrylic acid polymer and ethyl hydroxyethyl cellulose.
Specifically, the crushing mechanism in S5 may be one or more of a roller crusher, a jaw crusher, a gyratory crusher, an impact crusher, a medium speed coal mill, a sand mill, and an airflow crusher.
Specifically, the fuel can be one of solid fuel, liquid fuel, gas fuel, fossil fuel or biofuel or a mixture of the solid fuel, the liquid fuel, the gas fuel and the biofuel.
Specifically, the dust removing mechanism in S5 may be one of a bag dust remover, a pulse dust remover, a bin top dust remover, a cyclone dust remover, and a boiler dust remover.
In the embodiment, the developed additive does not cause the problems of environmental pollution, equipment corrosion and the like in the sintering process, has the characteristics of small using amount, wide source, low cost, environmental friendliness and the like, and has very wide popularization and application prospects.
Finally, it should be noted that: having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be regarded as illustrative only and not as limiting the present specification. Various modifications, improvements and adaptations to the present description may occur to those skilled in the art, although not explicitly described herein. Such alterations, modifications, and improvements are intended to be suggested in this specification, and are intended to be within the spirit and scope of the exemplary embodiments of this specification. Also, the description uses specific words to describe embodiments of the description. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the specification is included. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the specification may be combined as appropriate. Additionally, the order in which the elements and sequences of the process are recited in the specification, the use of alphanumeric characters, or other designations, is not intended to limit the order in which the processes and methods of the specification occur, unless otherwise specified in the claims.
Claims (6)
1. A preparation material of sintered coke powder comprises 10-15 parts of dry-based fixed carbon, 5-9 parts of ash, 3-8 parts of volatile components, 2-7 parts of sulfur, 12-17 parts of water and 20-25 parts of fuel, and is characterized in that: 4-9 parts of additive and 8-12 parts of combustion improver; the preparation method of the coke powder also comprises the following preparation methods:
s1, firstly, putting dry-basis fixed carbon, ash, volatile matters, sulfur and moisture into configuration equipment according to a certain proportion, and then correspondingly polishing and collecting;
s2, introducing the substances in the S1 which are polished and collected into a spraying and blowing tank, and then filling nitrogen into the top of the spraying and blowing tank and filling fluidized air into the bottom of the spraying and blowing tank to enable the substances in the S1 to be in a uniform state in the tank;
s3, drying the mixture in the S2 through a powder preparation link of a coal injection system, and grinding again by using a grinder, wherein the grinding time is controlled to be 15-25min;
s4, adding an additive and a combustion improver into the dried substance in the S3, and then fully combusting the mixture by using a furnace; and obtaining a dried sintered coke powder primary body;
s5, crushing the sintered coke powder primary body by adopting a crushing mechanism and a dust removing mechanism, wherein the crushing period is accompanied with the treatment of dust; finally, sintering coke powder is obtained and is guided back to the blowing tank again;
s6, inserting the injection pipeline into a coal feeding machine lower coal pipeline in an inclined mode, and directly injecting sintered coke powder into the grinding machine in an injection mode by using the nitrogen pressure in the injection tank to finish coke powder conveying.
2. The method for preparing sintered coke powder according to claim 1, wherein: the combustion improver is formed by mixing two or more of bentonite, borax, boric acid, ferric trichloride, sodium nitrate and (NH 4) 2S2O 8.
3. The method for preparing sintered coke powder according to claim 1, wherein: the additive is prepared from one or two or more of BaO, caO, mgO, mgCl2 and CaCl2 or carbonate, nitrate, permanganate and borate containing the oxides, or boric acid, methacrylic acid polymer and ethyl hydroxyethyl cellulose.
4. The method for preparing sintered coke powder according to claim 1, wherein: the crushing mechanism in the step S5 can adopt one or more of a roller crusher, a jaw crusher, a gyratory crusher, an impact crusher, a medium-speed coal mill, a sand mill and a gas flow crusher.
5. The method for preparing sintered coke powder according to claim 1, wherein: the fuel can be one of solid fuel, liquid fuel, gas fuel, fossil fuel or biofuel or a mixture of more or less.
6. The method for preparing sintered coke powder according to claim 1, wherein: the dust removing mechanism in the S5 can adopt one of a bag-type dust remover, a pulse dust remover, a bin top dust remover, a cyclone dust remover and a boiler dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210840634.2A CN115216353A (en) | 2022-07-18 | 2022-07-18 | Preparation method of sintered coke powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210840634.2A CN115216353A (en) | 2022-07-18 | 2022-07-18 | Preparation method of sintered coke powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115216353A true CN115216353A (en) | 2022-10-21 |
Family
ID=83611696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210840634.2A Pending CN115216353A (en) | 2022-07-18 | 2022-07-18 | Preparation method of sintered coke powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115216353A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5752993A (en) * | 1994-01-21 | 1998-05-19 | Covol Technologies, Inc. | Blast furnace fuel from reclaimed carbonaceous materials and related methods |
| CN101089159A (en) * | 2006-06-14 | 2007-12-19 | 宫志利 | Green energy-saving briquette |
| CN103555871A (en) * | 2013-10-14 | 2014-02-05 | 鞍钢股份有限公司 | Coke powder coal blending process and device |
| CN109161421A (en) * | 2018-10-29 | 2019-01-08 | 包头钢铁（集团）有限责任公司 | A kind of solid fuel for producing sinter and using |
| CN111518973A (en) * | 2020-05-27 | 2020-08-11 | 陕西智科新能源有限公司 | Multi-element mixed semi-coke powder for steelmaking blast furnace injection raw material |
| CN113637510A (en) * | 2020-04-27 | 2021-11-12 | 宝山钢铁股份有限公司 | Production method of high-value formed coke from waste coke powder |
-
2022
- 2022-07-18 CN CN202210840634.2A patent/CN115216353A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5752993A (en) * | 1994-01-21 | 1998-05-19 | Covol Technologies, Inc. | Blast furnace fuel from reclaimed carbonaceous materials and related methods |
| CN101089159A (en) * | 2006-06-14 | 2007-12-19 | 宫志利 | Green energy-saving briquette |
| CN103555871A (en) * | 2013-10-14 | 2014-02-05 | 鞍钢股份有限公司 | Coke powder coal blending process and device |
| CN109161421A (en) * | 2018-10-29 | 2019-01-08 | 包头钢铁（集团）有限责任公司 | A kind of solid fuel for producing sinter and using |
| CN113637510A (en) * | 2020-04-27 | 2021-11-12 | 宝山钢铁股份有限公司 | Production method of high-value formed coke from waste coke powder |
| CN111518973A (en) * | 2020-05-27 | 2020-08-11 | 陕西智科新能源有限公司 | Multi-element mixed semi-coke powder for steelmaking blast furnace injection raw material |
Non-Patent Citations (1)
| Title |
|---|
| 林志宏，刘新宇主编: "《工业锅炉节能技术与管理》", vol. 1, 中国计量出版社, pages: 29 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101812562B (en) | Safe and high-efficiency recovery method for converter gas | |
| CN101220312A (en) | Combustion improver for catalytic combustion of blast furnace coal injection | |
| CN105132075A (en) | Eastern Junggar coal slagging and contamination improvement additive and application method thereof | |
| CN104131127B (en) | RKEF technique nickel-iron smelting residual-heat utilization method | |
| CN101555533A (en) | Oxygen blast furnace iron-making process adopting water-coal-slurry as fuel | |
| CN101942535B (en) | Method for utilizing and recycling solid waste of cyclone ash by spraying through blast-furnace tuyere | |
| CN112317517A (en) | Pretreatment system and method suitable for co-processing electrolytic aluminum overhaul residues in cement kiln | |
| CN104212975B (en) | Dedusting ash of stainless steel composite blowing dephosphorization is utilized to reclaim the smelting process of chromium | |
| CN111793728A (en) | Blast furnace smelting fly ash treatment system and treatment method thereof | |
| Guo et al. | Physicochemical properties of cinder and alkaline modification in tuyere birdnest region of blast furnace | |
| KR101269148B1 (en) | Additives for enhancing pulverized coal combustibility in ironmaking process | |
| CN114540617A (en) | Preparation method and application method of redox briquetting of converter fly ash | |
| CN102260766A (en) | Smelting production method of iron | |
| CN212335216U (en) | Fly ash processing system is smelted to blast furnace | |
| CN109294654A (en) | A kind of blast furnace blowing fuel and preparation method | |
| CN112553396A (en) | Converter ignition method for preventing explosion venting of dry dedusting system | |
| CN115216353A (en) | Preparation method of sintered coke powder | |
| CN112029937A (en) | Comprehensive recycling and disposal process and equipment for electrolytic manganese slag | |
| CN1632136A (en) | Method for reclaiming and reusing iron-making dust in blast furnace | |
| CN216639609U (en) | System for overall process comprehensive utilization of stone coal | |
| CN112921139A (en) | Fine coke utilization method for blast furnace injection | |
| CN212770796U (en) | Comprehensive recycling and disposal equipment for electrolytic manganese slag | |
| CN103710480A (en) | Production method for reducing iron ores by utilization of liquid-state steel slag residual heat | |
| CN114622093B (en) | Method for efficiently recycling dry quenching dust | |
| RU2321647C1 (en) | Iron-containing waste material such as scale briquetting method for melting |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221021 |
|
| RJ01 | Rejection of invention patent application after publication |