CN107400527A - Production process of preheated coal stacked coke - Google Patents
Production process of preheated coal stacked coke Download PDFInfo
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- CN107400527A CN107400527A CN201710608272.3A CN201710608272A CN107400527A CN 107400527 A CN107400527 A CN 107400527A CN 201710608272 A CN201710608272 A CN 201710608272A CN 107400527 A CN107400527 A CN 107400527A
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- 239000003245 coal Substances 0.000 title claims abstract description 157
- 239000000571 coke Substances 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000004939 coking Methods 0.000 claims abstract description 37
- 238000010791 quenching Methods 0.000 claims abstract description 29
- 230000000171 quenching effect Effects 0.000 claims abstract description 29
- 238000000197 pyrolysis Methods 0.000 claims abstract description 22
- 239000003034 coal gas Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 238000012824 chemical production Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000011027 product recovery Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 9
- 239000011230 binding agent Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000007731 hot pressing Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002802 bituminous coal Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000002894 chemical waste Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to a production process of preheated coal stacked coke, which comprises the following steps: pretreatment: preheating and crushing coal materials according to the properties of the coal types, weighing the corresponding crushed coal materials according to the coal blending ratio, adding or not adding a binder, and mixing to obtain raw material coal; molding: hot-pressing raw material coal to obtain molded coal; stacking: stacking molded coal into a coal wall and laterally installing the molded coal into a vertical coke oven; coking: dry distilling in a vertical coke oven; quenching coke: pushing the coke into a coke quenching car, screening and storing the coke after quenching, and recycling the coal gas generated by dry distillation. According to the technical scheme, the viscosity of the coal is effectively improved through coal preheating, so that the using amount of the weak caking coal can be increased to more than 45%, the density of the weak caking coal is improved through a thermal forming technology, and the coking time can be greatly shortened; the preheating of the coal as fired can effectively improve the starting temperature of dry distillation, reduce the generation of coking wastewater and improve the quality of coal gas; the effects of energy conservation and environmental protection are realized by recovering the sensible heat of the generated coal gas.
Description
Technical field
The invention belongs to coal coking technical field, and in particular to a kind of pre- hot coal stacking coke production technique.
Background technology
Coke be in bituminous coal under conditions of air is completely cut off, certain temperature is heated to, by drying, pyrolysis, melting, viscous
What the stages such as knot, solidification, contraction were finally made, this process is high-temperature coking (high-temperature retorting).Jiao obtained by high-temperature coking
Charcoal can be used for blast furnace process, casting and gasification.Coke-stove gas in process of coking after caused recovered, purification is both high heating value
Fuel, be the important organic synthesis raw material of industry again.Coke is mainly used in blast furnace ironmaking and for copper, lead, zinc, titanium, antimony, mercury
Deng the blast furnace smelting of non-ferrous metal, reducing agent, exothermic mixture and stock column skeleton function are played.
Coal resources in China is very abundant, but passes through geological prospecting, and the reserves of coking coal only account for gross reserves
36.78%, wherein can the coking coal reserves of independent coking there was only 6.21%.In addition, coal source and coal are distributed not in national each province
, some particularly southern regional coal reserves of some provinces and regions are seldom, and mainly mill coal.Therefore how significantly to expand non-
The utilization of coking coal, it is the important topic of current China's coking industry development.In addition to blast furnace ironmaking needs a large amount of coke, other
Coke required for industry is quite a few, and such as Foundry Coke, gasification is burnt, electric Jiao etc..Cupola coke is the main of furnace cupola molten iron
Fuel, for melting batch, and overheats molten iron, also plays support stock column, keeps good gas permeability and for the effect such as charcoal.
China Coke industry is grown along with steel industry Growth Development, and its coal utilization technology and coking technique technology can be rated as
It is world-class.Existing coke production technique is there is resource restriction, environmental pollution, the problems such as especially operating environment is severe,
The exploitation of 21 century coke production technique has two great development directions, is concentrated mainly on the effective of weakly caking coal and utilizes and enhancement of environment, drop
In terms of low energy consumption.Correspondingly, many New Coke-making Technologies are developed, " the jumbo Coking reaction of such as European coking worker exploitation
SCOPE21 techniques that the single hole coking system of device one ", Japan develop etc..It is world's coking to develop new coke production technology
The problem that industry faces.
To expand coking coal as raw material, by specifically preheating coal blending process, hot extrusion molding, certain size is fabricated with
Coke is made by charing with the shaped coal of intensity, is an important method for expanding coking coal source.Both can use jet coal,
The coal cokings such as anthracite, not cohesive, weakly caking coal chlorine adding ratio can also be expanded.Existing coke production technique, usually using money
Source some strong caking coals in short supply, production efficiency is relatively low, the thermal efficiency is poor.Meanwhile also gas leak pollution environment etc. is asked
Topic.Therefore, new coking process is developed thoroughly to innovate current technology.
Publication No. CN1923956A patent application discloses a kind of pretreatment technology of coking mixing coal, and specifically discloses
Step：A certain amount of anthracitic coking mixing coal will be incorporated to be mixed evenly with water, another side heating is while be stirred to
Predetermined moisture content, that is, coking mixing coal is subjected to bubble, boiling, drying process, make the coking coal and nothing in coking mixing coal
Bituminous coal merges into an organic whole；The coking mixing coal after bubble, boiling, drying process is entered into stove coking again, high-quality Jiao can be produced.But
Moisture of the above-mentioned technical proposal after bubble, boiling step in coal largely raises, and step is also additionally dried, and wastes energy
Source and improve cost.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of new pre- hot coal stacking coke production work
Skill, can be by improving the viscosity of coal and density, coking time, degree can be greatly shortened, reduce coking chemical waste water and generate and improve
Gas quality, there is the advantages of energy-conserving and environment-protective.
The technical scheme that uses to achieve the above object of the present invention is：A kind of pre- hot coal stacking coke production technique, including
Following steps：
1) pre-process：Corresponding crushing coal charge addition after blends preheating and crushing, will be weighed according to coal property or do not added
Feed coal is mixed to get after adding additives；
2) it is molded：Moulded coal is obtained by feed coal is hot-forming；
3) stacking：Moulded coal stacking is attached to vertical coke oven into coal wall and side；
4) coking：The destructive distillation in vertical coke oven；
5) quenching：Coke is pushed into coke quenching cart, sieves, store after quenching, coal-gas recovering caused by destructive distillation is handled；
Further, the grain diameter for coal charge being crushed in step 1) is less than 2mm；
Further, the temperature of blends preheating is more than 200 DEG C in step 1)；
Further, compression ratio hot-forming in step 2) is more than 2:1, briquetting pressure is more than 20MPa；
Further, moulded coal density >=1.25 ton/m hot-forming in step 2)3；
Further, moulded coal stacking is put into the dragging on coal plate of charging car into coal wall in step 3), and side is by dragging coal
Baffle, by dragging coal plate and dragging the motion of coal baffle plate to be loaded into stacking coal wall is preheated in the furnace chamber of vertical coke oven；
Further, pyrolysis temperature is 750-1250 DEG C in step 4)；
Further, retorting time is 14-24h in step 4)；
Further, it is pushed into coke quenching cart through coke guide by ripe coke is refined with ram in step 5)；Quenching uses
Cooled coal gas, nitrogen or vapor quenching, then sieve, store；
Further, coal gas caused by destructive distillation is anxious with cyclic ammonia water after heat exchange is cooled to 600 DEG C -850 DEG C in step 5)
It is cooled to 85 DEG C, then chemical products recovery workshop working process is sent to through gas gathering system；
Further, the gas composition obtained is as follows：Methane 25%-34%, nitrogen content 2%-3%, carbon monoxide
7%-10%, hydrogen 50%-55%, CnHm2%-4%, calorific value 17-19MJ/m2。
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
Technical scheme effectively improves the viscosity of coal by coal preheating so that the dosage of weak caking coal can carry
It is high to improve its density to more than 45%, and using thermoforming technology, coking time can be greatly shortened；As-fired coal is preheated
Destructive distillation initial temperature can be effectively improved, reduction coking chemical waste water generates and improves gas quality；By being returned to caused gas heat
Receive, realize the effect of energy-saving and environmental protection.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
A kind of pre- hot coal stacking coke production technique, comprises the following steps：
1) pre-process：According to coal property by after blends preheating and crushing, weigh the corresponding coal charge that crushes by blending ratio and add
Add or be mixed to get feed coal after not adding binding agent；
2) it is molded：Moulded coal is obtained by feed coal is hot-forming；
3) stacking：Coal stacking is attached to vertical coke oven into coal wall and side；
4) coking：The destructive distillation in vertical coke oven；
5) quenching：Coke is pushed into coke quenching cart, sieves, store after quenching, coal-gas recovering caused by destructive distillation is handled；
Preferably, the grain diameter that coal charge is crushed in step 1) is less than 2mm；
Preferably, the temperature of blends preheating is more than 200 DEG C in step 1)；
Preferably, compression ratio hot-forming in step 2) is more than 2:1, briquetting pressure is more than 20MPa；
Preferably, moulded coal density >=1.25 ton/m hot-forming in step 2)3；
Preferably, moulded coal stacking is put into the dragging on coal plate of charging car into coal wall in step 3), and side is by dragging coal
Baffle, by dragging coal plate and dragging the motion of coal baffle plate to be loaded into stacking coal wall is preheated in the furnace chamber of vertical coke oven；
Preferably, pyrolysis temperature is 750-1250 DEG C in step 4)；
Preferably, retorting time is 14-24h in step 4)；
Preferably, it is pushed into coke quenching cart through coke guide by ripe coke is refined with ram in step 5)；Quenching uses
Cooled coal gas, nitrogen or vapor quenching, then sieve, store；
Preferably, coal gas caused by destructive distillation is anxious with cyclic ammonia water after heat exchange is cooled to 600 DEG C -850 DEG C in step 5)
It is cooled to 85 DEG C, then chemical products recovery workshop working process is sent to through gas gathering system.
Obtained gas composition is as follows：Methane 25%-34%, nitrogen content 2%-3%, carbon monoxide 7%-10%, hydrogen
Gas 50%-55%, CnHm2%-4%, calorific value calorific value 17-19MJ/m2。
Embodiment 1
A kind of pre- hot coal stacking coke production technique, comprises the following steps：
1) pre-process：Coal charge is preheated respectively, binding coal is preheating to 200-300 DEG C, weak caking coal is preheating to
250-380 DEG C, after above-mentioned coal charge is crushed, weighed accordingly by the blending ratio of binding coal, each 50% weight of weak caking coal
Crush after coal charge does not add binding agent and be mixed to get feed coal, the grain diameter for crushing coal charge is less than 2mm；
2) it is molded：Moulded coal is obtained by feed coal is hot-forming, and hot-forming compression ratio is more than 2:1, briquetting pressure is more than
20MPa, obtained hot-forming moulded coal density >=1.25 ton/m3；
3) stacking：Moulded coal stacking is put into the dragging on coal plate of charging car into coal wall, and side is led to by dragging coal baffle
Cross and drag coal plate and drag the motion of coal baffle plate to be loaded into stacking coal wall is preheated in the furnace chamber of vertical coke oven；
4) coking：The destructive distillation in vertical coke oven, pyrolysis temperature are 750 DEG C, retorting time 14h；
5) quenching：With ram coke quenching cart is pushed into by ripe coke is refined through coke guide；Quenching uses cooled coal gas quenching,
Then sieve, store；Coal gas caused by destructive distillation is chilled to 85 DEG C after heat exchange is cooled to 600 DEG C with cyclic ammonia water, then through gas collection
System is sent to chemical products recovery workshop working process.
Obtained gas composition is as follows：Methane 34%, nitrogen content 3%, carbon monoxide 7%, hydrogen 50%, CnHm2%,
Calorific value 18.9MJ/m2。
Embodiment 2
A kind of pre- hot coal stacking coke production technique, comprises the following steps：
1) pre-process：Coal charge is preheated respectively, binding coal is preheating to 200-300 DEG C, weak caking coal is preheating to
250-380 DEG C, after above-mentioned coal charge is crushed, weighed accordingly by the blending ratio of binding coal, each 50% weight of weak caking coal
Feed coal is mixed to get after crushing coal charge addition binding agent, the grain diameter for crushing coal charge is less than 2mm；
2) it is molded：Moulded coal is obtained by feed coal is hot-forming, and hot-forming compression ratio is more than 2:1, briquetting pressure is more than
20MPa, obtained hot-forming moulded coal density >=1.25 ton/m3；
3) stacking：Moulded coal stacking is put into the dragging on coal plate of charging car into coal wall, and side is led to by dragging coal baffle
Cross and drag coal plate and drag the motion of coal baffle plate to be loaded into stacking coal wall is preheated in the furnace chamber of vertical coke oven；
4) coking：The destructive distillation in vertical coke oven, pyrolysis temperature are 1250 DEG C, retorting time 14h；
5) quenching：With ram coke quenching cart is pushed into by ripe coke is refined through coke guide；Quenching uses cooled coal gas quenching,
Then sieve, store；Coal gas caused by destructive distillation is chilled to 85 DEG C after heat exchange is cooled to 850 DEG C with cyclic ammonia water, then through gas collection
System is sent to chemical products recovery workshop working process.
Obtained gas composition is as follows：Methane 33%, nitrogen content 2%, carbon monoxide 7%, hydrogen 55%, CnHm4%,
Calorific value 17.8MJ/m2。
Embodiment 3
Exemplified by existing 5.5 meters of tamping coke furnaces, transformed, 200,000 tons of yield of target year increase：
1) briquette shaper is preheated to calculate
Forming machine is the key equipment of production, has considerable influence to the production efficiency and quality of product.According to this work
The requirement of skill is, it is necessary to production capacity is big, hot-press forming device.
Dress moulded coal 60 hole, every hole need 1330 pieces of moulded coal daily for the design requirement, and the daily working time is 21 hours, i.e., every
Hour needs the moulded coal to be：
N0=(60 × 1330) ÷ 21=3800 parts
Press model SKM600-6B, rated pressure 31.5MPa, the average 7s of single device is selected to produce 1 piece of moulded coal, i.e.,
Every can produce moulded coal per hour
N=3600 ÷ 7=514 parts
Need press
N=1900 ÷ 514=7.38 platforms, round numbers 8
If 1 standby, therefore selected forming machine number of units is N=9 platforms
2) moulded coal stacking station calculates
Palletizing mechanical is the key equipment of production, has considerable influence to the production efficiency of product.Working time is divided into moulded coal
Palletization times and loading time.
Palletization times
T1=20min
Loading time
T2=3.5min
Assuming that calculating cycle has 20% error, then K=1.2
Total operating time
T=K (T1+T2)=1.2 × (20+3.5)=28.2min
Therefore T0=50.4min>T=28.2min, requirement is met using 1 set of stacking station.
Above-described embodiment is in the art the purpose is to be to allow simply to illustrate that the technical concepts and features of the present invention
Those of ordinary skill can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent change or modification according to made by the essence of present invention, should all covers within the scope of the present invention.
Claims (10)
1. a kind of pre- hot coal stacking coke production technique, it is characterised in that comprise the following steps：
1) pre-process：Corresponding crushing coal charge addition after blends preheating and crushing, will be weighed according to coal property or do not added viscous
Feed coal is mixed to get after knot agent；
2) it is molded：Moulded coal is obtained by feed coal is hot-forming；
3) stacking：Moulded coal stacking is attached to vertical coke oven into coal wall and side；
4) coking：The destructive distillation in vertical coke oven；
5) quenching：Coke is pushed into coke quenching cart, sieves, store after quenching, coal-gas recovering caused by destructive distillation is handled.
2. a kind of pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that coal charge is crushed in step 1)
Grain diameter be less than 2mm.
A kind of 3. pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that blends preheating in step 1)
Temperature be more than 200 DEG C.
4. a kind of pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that hot-forming in step 2)
Compression ratio be more than 2:1, briquetting pressure is more than 20MPa.
5. a kind of pre- hot coal stacking coke production technique as claimed in claim 2, it is characterised in that hot-forming in step 2)
Moulded coal density >=1.25 ton/m3。
6. a kind of pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that by moulded coal code in step 3)
Pile is put into the dragging on coal plate of charging car into coal wall, and side passes through the fortune dragged coal plate He drag coal baffle plate by dragging coal baffle
It is dynamic that preheating stacking coal wall is loaded into the furnace chamber of vertical coke oven.
A kind of 7. pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that pyrolysis temperature in step 4)
For 750-1250 DEG C.
A kind of 8. pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that retorting time in step 4)
For 14-24h.
9. a kind of pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that ram is used in step 5)
Ripe coke will be refined and be pushed into coke quenching cart through coke guide；Quenching uses cooled coal gas, nitrogen or vapor quenching, then sieve,
Storage.
10. a kind of pre- hot coal stacking coke production technique as claimed in claim 1, it is characterised in that destructive distillation is produced in step 5)
Raw coal gas is chilled to 85 DEG C, then be sent to chemical production through gas gathering system after heat exchange is cooled to 600 DEG C -850 DEG C with cyclic ammonia water
Product recovery workshop working process.
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| CN201710608272.3A CN107400527A (en) | 2017-07-24 | 2017-07-24 | Production process of preheated coal stacked coke |
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| CN107400527A true CN107400527A (en) | 2017-11-28 |
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| CN201710608272.3A Pending CN107400527A (en) | 2017-07-24 | 2017-07-24 | Production process of preheated coal stacked coke |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097071A (en) * | 2018-09-29 | 2018-12-28 | 山西沁新能源集团股份有限公司 | A kind of heating means producing formed coke |
| CN111187634A (en) * | 2019-11-24 | 2020-05-22 | 石晶 | Intelligent forming, stacking and coking production method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109097071B (en) * | 2018-09-29 | 2021-01-01 | 山西沁新能源集团股份有限公司 | Heating method for producing formed coke |
| CN111187634A (en) * | 2019-11-24 | 2020-05-22 | 石晶 | Intelligent forming, stacking and coking production method |
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