CN105131997B - The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette - Google Patents
The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette Download PDFInfo
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- CN105131997B CN105131997B CN201510621730.8A CN201510621730A CN105131997B CN 105131997 B CN105131997 B CN 105131997B CN 201510621730 A CN201510621730 A CN 201510621730A CN 105131997 B CN105131997 B CN 105131997B
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Abstract
The invention discloses the production method of a kind of environmental protection sulphur-fixing and dust-fixing semi coke briquette, belong to eco-friendly power source field.Solving prior art coal briquette intensity difference, cost is high, it is insufficient to burn, combustible is many in flue gas, and over-emitting black exhaust pollutes environment, it is impossible to the problems such as qualified discharge.It mainly comprises the steps that (1) preparation material coal；(2) retting shaping；(3) in, low temperature pyrogenation coking obtains finished product.Present invention reduces the burning-point of moulded coal, improve the intensity of moulded coal, save production cost, and environment friendly and pollution-free, it is mainly used in processing sulphur-fixing and dust-fixing semi coke briquette.
Description
Technical field
The present invention relates to the production method of a kind of environmental protection sulphur-fixing and dust-fixing semi coke briquette, belong to eco-friendly power source field.
Background technology
China is the country that coal resources are the abundantest, and current coal occupies about 70% in primary energy consumption, with coal is
Main energy consumption structure and using of high-sulfur coal bring serious pollution problem to China, often burn one ton of coal, produce
1600 × S% kilogram of SO2, 1 ten thousand stere waste gas, produce 200 kilograms of flue dust.Sulphur more than 95% in coal is with SO2Form
Discharge into the atmosphere, cause serious acid rain phenomenon and ecological disruption.Current process produce common coal briquette burning time, by force
It is poor to spend, and carbon sequestration burning is insufficient, discharges great amount of carbon dioxide, dust etc. and pollutes environment, does not meets the environmental requirement of country,
A lot of industry, civil are in the state of closing down.
Summary of the invention
It is an object of the invention to provide the production method of a kind of environmental protection sulphur-fixing and dust-fixing semi coke briquette, make full use of available group in coal
Point, improve the utilization rate of coal, SO when reducing coal combustion2And the discharge capacity of dust.
The production method of described environmental protection sulphur-fixing and dust-fixing semi coke briquette, comprises the following steps:
(1) preparation material coal:
Rice coal and bituminous coal end are mixed according to the weight ratio of 70-80:20-30, after electromagnetism is except iron, sends into pulverizer pulverizes,
Living beings after being then fed into storage bin and pulverizing mix according to the weight ratio of 80-90:10-20, add adhesive, are sufficiently stirred for
Uniform must expect coal；
(2) retting shaping:
Material coal is sent into retting storehouse retting 6-12 hour, loose uniformly to material coal, it is then sent to forming machine shaping；
(3) in, low temperature pyrogenation coking obtains finished product:
Moulded coal after shaping enters coking furnace, preheats 3-5 hour under the conditions of 250-400 DEG C, is pyrolyzed under the conditions of 700-900 DEG C
2-3 hour, being incubated 2-3 hour under the conditions of 500-700 DEG C, then at bottom coohng to 60-120 DEG C, the pyrolysis gas of generation enters
Entering furnace roof gas skirt, moulded coal is discharged through automatic discharge unit at furnace bottom, obtains sulphur-fixing and dust-fixing semi coke briquette.
The production method of described environmental protection sulphur-fixing and dust-fixing semi coke briquette, further comprising the steps of:
(4) pyrolysis gas causes one-level washer, two grades of scrubbing tower degreasing washings through furnace roof gas skirt, and purified gas enters vapour
Separator is dehydrated, and the recirculated water of the oil-containing dirt that wash tower bottoms flows out enters sedimentation basin and carries out dust precipitation, by cryoprecipitation
Pond carries out water-oil separating, and the recirculated water after water-oil separating enters scrubbing tower through water circulating pump and again recycles, the coal tar after separation
Tar pool squeezed into by oil pump.
(5) gas after steam-water separator is dehydrated described in is divided into three tunnels:
First via coal briquette heat exchange cooling in circulating fan entrance furnace bottom is to stove, causes gas retort middle and upper part by this gas afterwards, gives
Stove top coal briquette carries out prebake, and the furnace roof gas skirt of this gas entrance afterwards recycles again；
The second pressurized fan action in tunnel will deliver to combustion chamber burner and air mixing after-combustion after this gas pressurized, dries to coal briquette
Thermal source is provided；
Flue gas more than needed is caused gas blowing boiler through regulating fan effect and burns by the 3rd tunnel.
Adhesive described in step (1) is made up of the raw material of following weight portion:
Organic wastewater 4000 parts, humic acid 1000-1200 part, NaOH 300-600 part, polyacrylamide 0.6-1.2 part.
The mass ratio of the addition of described adhesive and rice coal, bituminous coal end and living beings total amount is 1:20.
Free humic acid content >=35% in described humic acid, fineness >=80 mesh, moisture ＜ 25%.
Described Molecular Weight for Polyacrylamide is more than 8,250,000 units.
Adhesive viscosities standard: during temperature 20 DEG C, with being coated with 4 viscosimeter detections, viscosity >=25 second.
Described adhesive has viscosity reduction, resistance is melted, improve heat endurance, improves the modification effect of optimizations such as mechanical strength.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is on the basis of traditional single coal produces moulded coal, has carried out bituminous coal, the mixing of anthracite coal, adds raw
Biomass fuel, turns waste into wealth, resource circulation utilization, reduces the burning-point of moulded coal, improves the intensity of moulded coal, product intensity >=80N.
2, the effective sub-prime of the present invention utilizes pyrolysis gas component, first with the active principle of tail gas, CO, H2、CH4Deng conduct
Chemical Manufacture raw material, remaining waste gas enters boiler combustion, SO when reducing coal combustion2And the discharge capacity of dust reaches more than 95%,
It is greatly saved production cost, and environment friendly and pollution-free.
3, the in advance destructive distillation in process units of extruded moulded coal is decomposed, eliminate most of the nitrogen, sulphur, phosphorus in advance, tar,
The pyrolysis gas such as benzene,toluene,xylene, phenol, naphthalene, anthracene, reach the purpose of sulphur-fixing and dust-fixing cleaning degraded, save coal simultaneously
Resource, has positive society and economic implications.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
The production method of described environmental protection sulphur-fixing and dust-fixing semi coke briquette, comprises the following steps:
(1) preparation material coal:
Rice coal and bituminous coal end are mixed according to the weight ratio of 75:25, after electromagnetism is except iron, sends into pulverizer pulverizes, then send
Biomass straw after entering storage bin and pulverizing mixes according to the weight ratio of 85:15, by 1 ton of rice coal, bituminous coal end and life
Material adds the weight ratio of 50kg and adds adhesive, stirs to obtain material coal；
(2) retting shaping:
Material coal is sent into retting storehouse retting 6-12 hour, loose uniformly to material coal, it is then sent to forming machine shaping；
(3) in, low temperature pyrogenation coking obtains finished product:
Moulded coal after shaping enters coking furnace, preheats 4 hours under the conditions of 350 DEG C, is pyrolyzed 2.5 hours under the conditions of 850 DEG C,
Being incubated 2-3 hour under the conditions of 600 DEG C, then at bottom coohng to 100 DEG C, the pyrolysis gas of generation enters furnace roof gas skirt, type
Coal is discharged through automatic discharge unit at furnace bottom, obtains sulphur-fixing and dust-fixing semi coke briquette.
(4) pyrolysis gas that step (3) obtains causes one-level washer through furnace roof gas skirt, two grades of scrubbing tower degreasing washings, only
Gas after change enters steam-water separator dehydration, and the recirculated water entrance sedimentation basin of the oil-containing dirt that wash tower bottoms flows out carries out dust and sinks
Forming sediment, carry out water-oil separating by cryoprecipitation pond, the recirculated water after water-oil separating again circulates through water circulating pump entrance scrubbing tower and makes
With, tar pool squeezed into by the coal tar pump after separation.
(5) gas after steam-water separator is dehydrated is divided into three tunnels:
First via moulded coal heat exchange cooling in circulating fan entrance furnace bottom is to stove, causes gas retort middle and upper part by this gas afterwards, gives
Stove top moulded coal carries out prebake, again recycles subsequently into furnace roof gas skirt；
The second pressurized fan action in tunnel will deliver to combustion chamber burner and air mixing after-combustion after this gas pressurized, dries to moulded coal
Thermal source is provided；
Flue gas more than needed is caused gas blowing boiler through regulating fan effect and burns by the 3rd tunnel.
Utilizing the production method described in embodiment 1, if certain unit produces 100000 tons/year per year, output moulded coal amount is 12.5 the most per hour
Ton/h, meanwhile, the fugitive constituent gas of more than 95% in coal disengages, product by-product pyrolysis gas 140m per ton3, by-product tar
12kg, as being used as gasified raw material with moulded coal, the production and processing expense of coal briquette per ton is 110 yuan/ton, and rice coal per ton about 300
Unit, the most per ton saves expense 190 yuan.Calculate as run 8000 hours time per year:
Year can save expense: 190 × 10,000,0=1,900 ten thousand yuan.
Annual SO2CER: 1600 × 3% × (1-95%) × 100000=240 ton SO2；
Fume amount can be reduced discharging every year: 140 × 8000/10000 × 200 × (1-5%)=21.28 ton flue dust.
Embodiment 2
The production method of described environmental protection sulphur-fixing and dust-fixing semi coke briquette, comprises the following steps:
(1) preparation material coal:
Rice coal and bituminous coal end are mixed according to the weight ratio of 70:30, after electromagnetism is except iron, sends into pulverizer pulverizes, then send
Biomass sludge after entering storage bin and pulverizing mixes according to the weight ratio of 80:20, adds adhesive, stirs to obtain material
Coal；
(2) retting shaping:
Material coal is sent into retting storehouse retting 6 hours, loose uniformly to material coal, it is then sent to forming machine shaping；
(3) in, low temperature pyrogenation coking obtains finished product:
Moulded coal after shaping enters coking furnace, preheats 5 hours under the conditions of 250 DEG C, is pyrolyzed 3 hours under the conditions of 700 DEG C,
Being incubated 3 hours under the conditions of 500 DEG C, then at bottom coohng to 60 DEG C, the pyrolysis gas of generation enters furnace roof gas skirt, and moulded coal exists
Furnace bottom is discharged through automatic discharge unit, obtains sulphur-fixing and dust-fixing semi coke briquette.
Embodiment 3
The production method of described environmental protection sulphur-fixing and dust-fixing semi coke briquette, comprises the following steps:
(1) preparation material coal:
Rice coal and bituminous coal end are mixed according to the weight ratio of 80:20, after electromagnetism is except iron, sends into pulverizer pulverizes, then send
Biomass sludge and stalk after entering storage bin and pulverizing mix according to the weight ratio of 90:10, add adhesive, are sufficiently stirred for all
Even must expect coal；
(2) retting shaping:
Material coal is sent into retting storehouse retting 12 hours, loose uniformly to material coal, it is then sent to forming machine shaping；
(3) in, low temperature pyrogenation coking obtains finished product:
Moulded coal after shaping enters coking furnace, preheats 3 hours under the conditions of 400 DEG C, is pyrolyzed 2 hours under the conditions of 900 DEG C,
Being incubated 2 hours under the conditions of 700 DEG C, then at bottom coohng to 120 DEG C, the pyrolysis gas of generation enters furnace roof gas skirt, and moulded coal exists
Furnace bottom is discharged through automatic discharge unit, obtains sulphur-fixing and dust-fixing semi coke briquette.
Embodiment 4
The production method of described environmental protection sulphur-fixing and dust-fixing semi coke briquette, comprises the following steps:
(1) preparation material coal:
Rice coal and bituminous coal end are mixed according to the weight ratio of 78:22, after electromagnetism is except iron, sends into pulverizer pulverizes, then send
Biomass straw after entering storage bin and pulverizing mixes according to the weight ratio of 84:16, adds adhesive, stirs to obtain material
Coal；
(2) retting shaping:
Material coal is sent into retting storehouse retting 8-12 hour, loose uniformly to material coal, it is then sent to forming machine shaping；
(3) in, low temperature pyrogenation coking obtains finished product:
Moulded coal after shaping enters coking furnace, preheats 3.5 hours under the conditions of 300 DEG C, is pyrolyzed 2 hours under the conditions of 800 DEG C,
Being incubated 3 hours under the conditions of 650 DEG C, then at bottom coohng to 100 DEG C, the pyrolysis gas of generation enters furnace roof gas skirt, moulded coal
Discharge through automatic discharge unit at furnace bottom, obtain sulphur-fixing and dust-fixing semi coke briquette.
Claims (5)
1. the production method of an environmental protection sulphur-fixing and dust-fixing semi coke briquette, it is characterised in that comprise the following steps:
(1) preparation material coal:
Rice coal and bituminous coal end are mixed according to the weight ratio of 70-80:20-30, after electromagnetism is except iron, sends into pulverizer pulverizes,
Living beings after being then fed into storage bin and pulverizing mix according to the weight ratio of 80-90:10-20, add adhesive, are sufficiently stirred for
Uniform must expect coal；
(2) retting shaping:
Material coal is sent into retting storehouse retting 6-12 hour, loose uniformly to material coal, it is then sent to forming machine shaping；
(3) in, low temperature pyrogenation coking obtains finished product:
Moulded coal after shaping enters coking furnace, preheats 3-5 hour under the conditions of 250-400 DEG C, is pyrolyzed under the conditions of 700-900 DEG C
2-3 hour, being incubated 2-3 hour under the conditions of 500-700 DEG C, then at bottom coohng to 60-120 DEG C, the pyrolysis gas of generation enters
Entering furnace roof gas skirt, moulded coal is discharged through automatic discharge unit at furnace bottom, obtains sulphur-fixing and dust-fixing semi coke briquette.
The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette the most according to claim 1, it is characterised in that also include following step
Rapid:
(4) pyrolysis gas causes one-level washer, two grades of scrubbing tower degreasing washings through furnace roof gas skirt, and purified gas enters vapour
Separator is dehydrated, and the recirculated water of the oil-containing dirt that wash tower bottoms flows out enters sedimentation basin and carries out dust precipitation, by cryoprecipitation
Pond carries out water-oil separating, and the recirculated water after water-oil separating enters scrubbing tower through water circulating pump and again recycles, the coal tar after separation
Tar pool squeezed into by oil pump.
The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette the most according to claim 2, it is characterised in that also include following step
Rapid:
(5) gas after steam-water separator is dehydrated is divided into three tunnels:
First via moulded coal heat exchange cooling in circulating fan entrance furnace bottom is to stove, causes gas retort middle and upper part by this gas afterwards, gives
Stove top moulded coal carries out prebake, again recycles subsequently into furnace roof gas skirt；
The second pressurized fan action in tunnel will deliver to combustion chamber burner and air mixing after-combustion after this gas pressurized, dries to moulded coal
Thermal source is provided；
Flue gas more than needed is caused gas blowing boiler through regulating fan effect and burns by the 3rd tunnel.
The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette the most according to claim 1, it is characterised in that: step (1)
Described adhesive is made up of the raw material of following weight portion:
Organic wastewater 4000 parts, humic acid 1000-1200 part, NaOH 300-600 part, polyacrylamide 0.6-1.2 part.
The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette the most according to claim 4, it is characterised in that: adding of adhesive
The mass ratio of dosage and rice coal, bituminous coal end and living beings total amount is 1:20.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621730.8A CN105131997B (en) | 2015-09-25 | 2015-09-25 | The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621730.8A CN105131997B (en) | 2015-09-25 | 2015-09-25 | The production method of environmental protection sulphur-fixing and dust-fixing semi coke briquette |
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| CN105131997B true CN105131997B (en) | 2016-08-24 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337441A (en) * | 2001-09-03 | 2002-02-27 | 李志远 | Metallurgical coke briquette |
| CN101812343A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Briquette binder and briquette preparation method based on binder |
| CN103923719A (en) * | 2014-04-08 | 2014-07-16 | 洪洞县利众生物质能源有限公司 | Composite solid fuel |
-
2015
- 2015-09-25 CN CN201510621730.8A patent/CN105131997B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337441A (en) * | 2001-09-03 | 2002-02-27 | 李志远 | Metallurgical coke briquette |
| CN101812343A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Briquette binder and briquette preparation method based on binder |
| CN103923719A (en) * | 2014-04-08 | 2014-07-16 | 洪洞县利众生物质能源有限公司 | Composite solid fuel |
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| CN105131997A (en) | 2015-12-09 |
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Denomination of invention: Production method of environment-friendly sulfur and dust fixing semi coke briquette Effective date of registration: 20211201 Granted publication date: 20160824 Pledgee: Linshu sub branch of Linshang Bank Co.,Ltd. Pledgor: SHANDONG JINYIMENG ECOLOGICAL FERTILIZER Co.,Ltd. Registration number: Y2021980013601 |