CN102963879A - Formed coke produced by ball pressing technology and production method thereof - Google Patents
Formed coke produced by ball pressing technology and production method thereof Download PDFInfo
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Abstract
The invention provides a method for producing a formed coke by adopting a ball pressing technology. The method is characterized by adopting one or the mixture of more than one of petroleum coke which is not calcined or calcined petroleum coke, pitch coke, electrically calcined coal, metallurgical coke, natural graphite, synthetic graphite, returned materials and reclaimed materials of carbon products as a raw material; according to the technique method for producing the formed coke by adopting the ball pressing technology of a ball press machine, the maximum granularity of the raw material is controlled to be in a range of 5-0.01mm during ball pressing based on the difference of the variety of raw materials and the size of volatile components, the content of the volatile components of the raw material is adjusted and controlled in the range of 7-20%, and the minimum linear pressure ratio is controlled to be greater than 0.8t/mm when the ball press machine is used for pressing balls. The formed coke is spherical or takes the shape of an oval ball with different three-dimensional sizes, and has a volume density of greater than 1.3g/cm<3> and compression strength of greater than 20Mpa as well as graphitization anisotropy character; and the porosity of the pressured parallel surface of the ball is less than that of the pressured vertical surface of the ball. The method has the advantages that resources are protected and fully used, the environments are purified, and the formed coke product with high quality is produced.
Description
Technical field
The invention belongs to chemical technology field, the production method of Carbon Materials and raw material thereof, particularly a kind of take the powdery coke as raw material, the method for employing ball press technique type of production coke.
Background technology
The ubiquity volume densities such as the raw material of Carbon Materials, metallurgical coke, intensity are low, and quality fluctuation is large, in production, storage, transportation, use procedure, produces a large amount of powders, dust especially, and serious environment pollution causes the wasting of resources simultaneously, the restriction Economic development.Producing after-smithing petroleum coke as example, in forging front refinery coke, reach 50% when above less than 3mm granularity content, calcined by rotary kiln flies to decrease above 10%, and the after-smithing petroleum coke volume density of producing is at 1.0g/cm
3About, void content is greater than 30%.Adopt ball press technique type of production coke technology to produce after-smithing petroleum coke, can reduce calcined by rotary kiln and fly to decrease 50%, the after-smithing petroleum coke volume density is brought up to 1.5g/cm
3, void content is less than 20%.Take the after-smithing petroleum coke of ball press technique production as raw material, the prebaked anode of producing is compared with common after-smithing petroleum coke and to be reduced wedding agent coal-tar pitch add-on 20%.Volume density reaches 1.62g/cm
3Therefore, adopt ball press technique type of production coke technology, both protected resource, take full advantage of resource, also purified environment, can produce again high-quality formed coke charcoal product.
Summary of the invention
The present invention has overcome the defective of above-mentioned existence, and purpose provides a kind of method that adopts ball press technique type of production coke.
The present invention adopts the method content Description of ball press technique type of production coke:
The present invention adopts the method for ball press technique type of production coke, it is characterized in that: adopt and to forge front refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product is produced returns, reclaimed materials, wherein a kind of or above-mentioned more than one mixtures are raw material;
Adopt the processing method of ball press ball press technique type of production coke, vary in size according to raw material type, volatile matter, the raw material maximum particle size is controlled at 5～0.1mm during pressure ball; Adjust volatility of raw material and divide content, be controlled in 7～20% scopes; Minimum rate of accumulation pressure ratio is greater than 0.8t/mm during control ball press pressure ball.
The feature of formed coke charcoal is: the unequal oval ball shape of sphere or three-dimensional dimension; Volume density is greater than 1.3g/cm
3Compressive strength is greater than 20Mpa; Spheroid pressurized parallel surface void content is less than pressurized vertical surface void content; Has the greying anisotropic properties.
The method implementation step of type of production coke: material choice → granularity control → volatile content adjustment → ball press line pressure separates → calciner and calcining temperature → calcinated type coke than → ball press pressure ball → qualified spheroid definite with the pressure ball size.
Material choice
Front refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite are forged in employing, carbon product is produced returns, reclaimed materials, and wherein a kind of or above-mentioned more than one mixtures are raw material;
The control of maximum particle size during pressure ball
Vary in size according to raw material type, volatile matter, the raw material maximum particle size that enters ball press is controlled at 5～0.1mm, presses particle and the shared different ratios of powder in the raw material, selects two kinds of screenings, crushing process:
(1), when piece material quantity is many in the raw material, use first crusher in crushing, sieve again, minus mesh enters subsequent processing, oversize turns back in the crusher and to continue again screening after the fragmentation;
(2), when powder quantity is many in the raw material, first screening, minus mesh enters subsequent processing, oversize turns back to again screening after the crusher in crushing;
When maximum particle size requires less than 1mm, to get minus mesh and enter in pulverizing, the milling equipment, material behind pulverizing, the grinding directly enters subsequent processing;
When raw material granularity during less than pressure ball raw material maximum particle size, directly enter subsequent processing;
Adjust volatile content in the raw material
Volatility of raw material divides the content adjusted value to be controlled in 7～20% scopes, adopts three kinds of inflation method:
(1), adopt in proportion with respect to the high and low different volatile content raw materials of adjusted value and to adjust: one or more that one or more of release mesh are higher than adjusted value volatile content raw material and release mesh are lower than adjusted value volatile content raw material by adjusted value, directly carry out proportioning, mixing at 100～350 ℃ of hot or normal temperature states.Volatile content reaches adjusted value after testing, directly delivers to ball press charging tank pressure ball;
(2), being higher than adjusted value volatile content raw material adopts heating to reduce the volatile matter adjustment: one or more of release mesh are higher than adjusted value volatile content raw material deliver in 100～350 ℃ of adjustable heat agitated machines of temperature or heat agitated and the coefficient Special seal equipment of negative pressure of vacuum, under continuous hot stirring, the volatilizable composition of raw material is volatilized fast, content constantly reduces, volatile content reaches adjusted value after testing, delivers to ball press charging tank pressure ball under hot or cold conditions;
(3), increase the volatile content adjustment: that gets release mesh is lower than adjusted value volatile matter or non-volatile minute raw material, take oil extract heavy oil to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch wherein a kind of or above-mentioned more than one mixtures adopt cold conditions, hot two kinds of inflation method as wedding agent:
A: adjustment in cold air condition; One or more of release mesh are lower than the adjusted value volatile matter or contained content of starting materials in non-volatile minute deliver in the mixing machine, the oil extract heavy oil that adds the Normal Atmospheric Temperature Liquid state is a kind of or above-mentioned more than one mixtures wherein to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch, through constantly mixing, volatile content reaches adjusted value after testing, is sent to ball press charging tank pressure ball;
B: hot adjustment; One or more of release mesh are lower than the adjusted value volatile content or contained content of starting materials in non-volatile minute and deliver in the adjustable Hot mixer of 100～350 ℃ of temperature, under continuous hot stirring, the oil extract heavy oil that adds solid, powdery or liquid state is a kind of or above-mentioned more than one mixtures wherein to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch, make volatility of raw material divide content to bring up to adjusted value, volatile content reaches adjusted value after testing, and hot or cold conditions is delivered to ball press charging tank pressure ball;
Ball press line pressure ratio and pressure ball size are determined
Ball press normal operation line pressure is than greater than 0.8t/mm, compacting sphere or the unequal oval-shaped ball of three-dimensional dimension, and length direction sphere size is less than 100mm;
The ball press pressure ball
Cold conditions or the hot raw material of adjusting volatile content are sent in the ball press charging tank, realize balling-up through precompressed, pressure ball;
The separation of qualified spheroid
Raw material separates with screening plant after out through ball press, press the pressure ball granularity selection screen size that raw material type, purposes, service requirements or calciner allow calcining, when not needing to calcine, can directly not use as Carbon Materials raw material or metallurgical coke oversize, entering calciner when needing calcining calcines, minus mesh turns back to the ball press charging tank with the raw material of preparing pressure ball, allocates in proportion again pressure ball into;
Calciner and calcining temperature
Select can-type calcine furnace or rotary kiln, electric calciner, shaft furnace, tunnel furnace etc. wherein a kind of as calciner, get an operation pressure ball oversize and send into and calcine in the calciner, calcining temperature is controlled between 600～2000 ℃.
The calcinated type coke
What from calciner out, reach room temperature is the calcinated type coke.
The present invention adopts the method for ball press technique type of production coke, and the formed coke charcoal of production is the unequal oval ball shape of sphere or three-dimensional dimension, and volume density is greater than 1.3g/cm
3, compressive strength is greater than 20Mpa, and spheroid pressurized parallel surface void content has the greying anisotropic properties less than pressurized vertical surface void content.The present invention has protected resource, has taken full advantage of resource, has purified environment, produces high-quality formed coke charcoal product.
Embodiment
The present invention adopts the method for ball press technique type of production coke to do below being achieved in that and specifies.The present invention adopts the method implementation step of ball press technique type of production coke: material choice → granularity control → volatile content adjustment → ball press line pressure separates → calciner and calcining temperature → calcinated type coke than → ball press pressure ball → qualified spheroid definite with the pressure ball size.
Material choice
Front refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite are forged in employing, carbon product is produced returns, reclaimed materials, and wherein a kind of or above-mentioned more than one mixtures are raw material;
The control of maximum particle size during pressure ball
Vary in size according to raw material type, volatile matter, the raw material maximum particle size that enters ball press is controlled at 5～0.1mm.The raw material maximum particle size gets the small value, and improves pressure ball volume density, intensity, but reduces balling ratio.According to particle in the raw material and the shared different ratios of powder, select two kinds of screenings, crushing process:
(1), when piece material quantity is many in the raw material, use first crusher in crushing, sieve again, minus mesh enters subsequent processing, oversize turns back in the crusher and to continue again screening after the fragmentation;
(2), when powder quantity is many in the raw material, first screening, minus mesh enters subsequent processing, oversize turns back to again screening after the crusher in crushing;
When maximum particle size requires less than 1mm, increase pulverizing, milling equipment.Get minus mesh and enter in pulverizing, the milling equipment, material behind pulverizing, the grinding directly enters subsequent processing.
When raw material came material granularity less than pressure ball raw material maximum particle size, cancellation screening, broken process directly entered subsequent processing.
Adjust volatile content in the raw material
Volatile content is measured: with the crucible that raw material to be determined is packed into and sealed, put into fast 1200 ℃ of constant temperature test electric furnaces, take out behind the calcining 30min, naturally cool to room temperature.The quality that takes by weighing raw material calcining volatilization loss is volatile content with the front raw material total mass per-cent of calcining.
It is not a fixed value that pressure ball divides the content adjustment with volatility of raw material, but volumetric shrinkage is maximum during with calcining compacting spheroid, and the maximum volatile content when not producing bubble again simultaneously is as best adjusted value, and general control is in 7～20% scopes.Formed coke charcoal volume density is large, intensity is high when requiring, during good conductivity, volatile content is got large value.Adopt three kinds of inflation method:
(1), adopt in proportion with respect to the high and low different volatile content raw materials of adjusted value and to adjust: one or more that one or more of release mesh are higher than adjusted value volatile content raw material and release mesh are lower than adjusted value volatile content raw material by adjusted value, directly carry out proportioning, mixing at 100～350 ℃ of hot or normal temperature states.Volatile content reaches adjusted value after testing, directly delivers to ball press charging tank pressure ball.
(2), being higher than adjusted value volatile content raw material adopts heating to reduce the volatile content adjustment: one or more of release mesh are higher than adjusted value volatile content raw material deliver in 100～350 ℃ of adjustable heat agitated machines of temperature or heat agitated and the coefficient Special seal equipment of negative pressure of vacuum, under continuous hot stirring, the volatilizable composition of raw material is volatilized fast, content constantly reduces, volatile content reaches adjusted value after testing, delivers to ball press charging tank pressure ball under hot or cold conditions.
(3), increase the volatile content adjustment: that gets release mesh is lower than adjusted value volatile matter or non-volatile minute raw material, take oil extract heavy oil to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch wherein a kind of or above-mentioned more than one mixtures adopt cold conditions, hot two kinds of inflation method as wedding agent:
A: adjustment in cold air condition: one or more of release mesh are lower than the adjusted value volatile matter or contained content of starting materials in non-volatile minute deliver in the mixing machine, the oil extract heavy oil that adds the Normal Atmospheric Temperature Liquid state is a kind of or above-mentioned more than one mixtures wherein to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch, through constantly mixing, volatile content reaches adjusted value after testing, is sent to ball press charging tank pressure ball.
B: hot adjustment: one or more of release mesh are lower than the adjusted value volatile content or contained content of starting materials in non-volatile minute and deliver in the adjustable Hot mixer of 100～350 ℃ of temperature, under continuous hot stirring, the oil extract heavy oil that adds solid, powdery or liquid state is a kind of or above-mentioned more than one mixtures wherein to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch, make volatility of raw material divide content to bring up to adjusted value, volatile content reaches adjusted value after testing, and hot or cold conditions is delivered to ball press charging tank pressure ball.
Ball press line pressure ratio and pressure ball size are determined
Require ball press normal operation line pressure ratio greater than 0.8t/mm, according to formed coke charcoal purposes, service requirements and the comprehensive calciner granularity requirements to calcining raw materials, compacting sphere or the unequal oval-shaped ball of three-dimensional dimension, generally length direction sphere size is less than 100mm.
The ball press pressure ball
Cold conditions or the hot raw material of adjusting volatile content are sent in the ball press charging tank, realize the balling-up technological process through precompressed, pressure ball.
The separation of qualified spheroid
Raw material through ball press out after, whole ball is namely arranged, broken ball and other powder of different grain size level are also arranged, need to separate with screening plant.Press the pressure ball granularity selection screen size that raw material type, purposes, service requirements or calciner allow calcining, when not needing to calcine, can directly not use as Carbon Materials raw material or metallurgical coke oversize, entering calciner when needing calcining calcines, minus mesh turns back to the ball press charging tank with the raw material of preparing pressure ball, allocates in proportion again pressure ball into.
Calciner and calcining temperature
Select can-type calcine furnace, rotary kiln, electric calciner, shaft furnace, tunnel furnace etc. wherein a kind of as calciner.Get an operation pressure ball oversize and send in the calciner and calcine, according to formed coke charcoal purposes, the highest calcining temperature is controlled between 600～2000 ℃.
The calcinated type coke
What from calciner out, reach room temperature is the calcinated type coke.According to the difference of selecting raw material type can be directly as raw material or the metallurgical coke use of carbon product, greying goods, thickener.
Embodiment 1
Prebaked anode is with forging rear oil production method of formed coke
(1), material choice: that gets volatile matter 9.8% forges front refinery coke as raw material take powder as main;
(2), granularity control: adopt sieve aperture 5mm vibratory screening apparatus to sieve, oversize is delivered to the jaw crushing crusher machine, and the raw material after the fragmentation enters vibratory screening apparatus and sieves, and forms oversize fragmentation, screening closed cycle.Minus mesh is sent to the beater grinder of mesh 1mm and pulverizes.
(3), volatile matter adjustment: get raw material after the pulverizing and put into 160 ℃ of Hot mixers it is heated to more than 120 ℃, in mixing machine, constantly add granularity less than 68 ℃ of medium temperature coal pitch powder of 2mm softening temperature, hot mixing, when getting calcining shrinking percentage maximum, after the detection volatile content reached 15%, volatile matter was adjusted complete;
(4), ball press line pressure ratio and pressure ball size are determined: set the ball press line pressure than 0.9t/mm, the unequal oval-shaped ball of compacting 35 * 25 * 20 three-dimensional dimensions;
(5), ball press pressure ball: the hot raw material that will adjust volatile content is sent in the ball press charging tank, realizes balling-up through precompressed, pressure ball;
(6), the separation of qualified spheroid: raw material through ball press out after with hole 10mm fixedly grate separate, oversize enters calciner and calcines, minus mesh turns back to the ball press charging tank with the raw material of preparing pressure ball, allocates in proportion again pressure ball into;
(7), calciner and calcining temperature: oversize enters rotary kiln and calcines routinely front refinery coke method and calcine 1350 ℃ of the highest calcining temperatures;
(8), forge rear oil formed coke: from rotary kiln out, reach being of room temperature and forge rear oil formed coke.Volume density 1.54g/cm
3Compressive strength 41Mpa; The raw material that can be used as the carbon products such as prebaked anode and graphitized electrode uses.
Embodiment 2
The metallurgical formed coke production method
(1), material choice: choosing the granularity that produces in metallurgical coke production, transportation, the use procedure is raw material less than the 2mm metallurgical coke;
(2), granularity control: because of raw material granularity less than pressure ball raw material maximum particle size, cancellation is broken, sieving technology, directly enters subsequent processing;
(3), volatile matter adjustment: the raw material of getting release mesh is put into 140 ℃ of Hot mixers is heated to more than 100 ℃ it, in mixing machine, constantly add petroleum slag and asphalt mixture, hot mixing, when getting calcining shrinking percentage maximum, after the detection volatile content reached 13%, volatile matter was adjusted complete;
(4), ball press line pressure ratio and pressure ball size are determined: set the ball press line pressure than 0.85t/mm, the unequal oval-shaped ball of compacting 45 * 32 * 28 three-dimensional dimensions;
(5), ball press pressure ball: the hot raw material that will adjust volatile content is sent in the ball press charging tank, realizes balling-up through precompressed, pressure ball;
(6), the separation of qualified spheroid: raw material through ball press out after with hole 20mm fixedly grate separate, oversize enters calciner and calcines, minus mesh turns back to the ball press charging tank with the raw material of preparing pressure ball, allocates in proportion again pressure ball into;
(7), calciner and calcining temperature: oversize entered can-type calcine furnace, calcined 1000 ℃ of the highest calcining temperatures by 12 hours one-period;
(8), metallurgical formed coke: from can-type calcine furnace out, reach the metallurgical formed coke that is of room temperature.Volume density 1.35g/cm
3Compressive strength 28Mpa; Can replace common metallurgical coke to be used for the use that acts as a fuel of blast furnace ironmaking, smelting, casting, process furnace.
Embodiment 3
Greying type charcoal production method
(1), material choice: choose that the graphitized charcoal cellulose product is produced returns, reclaimed materials is raw material;
(2), granularity control: because of bulk material quantity in the raw material many, use first unqualified positive poleb crusher, jaw crushing crusher machine, sieve with sieve aperture 5mm vibratory screening apparatus, oversize turns back to and continues in the crusher to sieve after the fragmentation again, forms oversize fragmentation, screening closed cycle again.Minus mesh is sent to the beater grinder of mesh 0.8mm and pulverizes.
(3), volatile matter adjustment: get raw material after the pulverizing and put into 180 ℃ of Hot mixers it is heated to more than 120 ℃, in mixing machine, constantly add granularity less than 82 ℃ of medium temperature coal pitch powder of 1mm softening temperature, hot mixing, when getting calcining shrinking percentage maximum, after the detection volatile content reached 14%, volatile matter was adjusted complete;
(4), ball press line pressure ratio and pressure ball size are determined: set the ball press line pressure than 0.95t/mm, the unequal oval-shaped ball of compacting 32 * 22 * 18 three-dimensional dimensions;
(5), ball press pressure ball: the hot raw material that will adjust volatile content is sent in the ball press charging tank, realizes balling-up through precompressed, pressure ball;
(6), the separation of qualified spheroid: raw material through ball press out after with hole 8mm fixedly grate separate, oversize enters calciner and calcines, minus mesh turns back to the ball press charging tank with the raw material of preparing pressure ball, allocates in proportion again pressure ball into;
(7), calciner and calcining temperature: oversize enters electric calciner and calcines, 1800 ℃ of the highest calcining temperatures;
(8), greying type charcoal: from electric calciner out, reach the greying type that the is charcoal of room temperature.Volume density 1.59g/cm
3Compressive strength 39Mpa; The raw material that can be used as the carbon products such as graphitized electrode uses.
Claims (3)
1. formed coke charcoal, it is characterized in that: be shaped as the unequal oval ball of sphere or three-dimensional dimension, volume density is greater than 1.3g/cm
3, compressive strength is greater than 20Mpa, and spheroid pressurized parallel surface void content has the greying anisotropic properties less than pressurized vertical surface void content.
2. formed coke charcoal as claimed in claim 1, it is characterized in that adopting being selected from the returns of forging front refinery coke, after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product production or one or more the mixture in the reclaimed materials is raw material, through the ball press technique preparation and get.
3. formed coke charcoal as claimed in claim 2, wherein said ball press technique comprises following steps:
1. material choice
Employing is selected from forges returns or the reclaimed materials that front refinery coke, after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product are produced, in more than one mixtures be raw material;
2. granularity control
Vary in size according to raw material type, volatile matter, the raw material maximum particle size that enters ball press is controlled at 5～0.1mm, presses particle and the shared different ratios of powder in the raw material, selects two kinds of screenings, crushing process:
(1), when piece material quantity is many in the raw material, use first crusher in crushing, sieve again, minus mesh enters subsequent processing, oversize turns back in the crusher and to continue again screening after the fragmentation;
(2), when powder quantity is many in the raw material, first screening, minus mesh enters subsequent processing, oversize turns back to again screening after the crusher in crushing; When maximum particle size requires less than 1mm, to get minus mesh and enter in pulverizing, the milling equipment, material behind pulverizing, the grinding directly enters subsequent processing; When raw material granularity during less than pressure ball raw material maximum particle size, directly enter subsequent processing;
3. volatile content adjustment
Volatility of raw material divides the content adjusted value to be controlled in 7～20% scopes, adopts three kinds of inflation method:
(1), adopt in proportion with respect to the high and low different volatile content raw materials of adjusted value and adjust: more than one that more than one of release mesh are higher than adjusted value volatile content raw material and release mesh are lower than adjusted value volatile content raw material by adjusted value, directly carry out proportioning, mixing at 100～350 ℃ of hot or normal temperature states, volatile content reaches adjusted value after testing, directly delivers to ball press charging tank pressure ball;
(2), being higher than adjusted value volatile content raw material adopts heating to reduce the volatile matter adjustment: more than one of release mesh are higher than adjusted value volatile content raw material deliver in 100～350 ℃ of adjustable heat agitated machines of temperature or heat agitated and the coefficient Special seal equipment of negative pressure of vacuum, under continuous hot stirring, the volatilizable composition of raw material is volatilized fast, content constantly reduces, volatile content reaches adjusted value after testing, delivers to ball press charging tank pressure ball under hot or cold conditions;
(3), increase the volatile content adjustment: that gets release mesh is lower than adjusted value volatile matter or non-volatile minute raw material, take oil extract heavy oil to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch wherein more than one mixtures adopt cold conditions, hot two kinds of inflation method as wedding agent:
A: adjustment in cold air condition: more than one of release mesh are lower than the adjusted value volatile matter or contained content of starting materials in non-volatile minute deliver in the mixing machine, the oil extract heavy oil that adds the Normal Atmospheric Temperature Liquid state is more than one mixtures wherein to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch, through constantly mixing, volatile content reaches adjusted value after testing, is sent to ball press charging tank pressure ball;
B: hot adjustment: more than one of release mesh are lower than the adjusted value volatile content or contained content of starting materials in non-volatile minute and deliver in the adjustable Hot mixer of 100～350 ℃ of temperature, under continuous hot stirring, the oil extract heavy oil that adds solid, powdery or liquid state is more than one mixtures wherein to product between the pitch, coal tar extract carbolineum to product between the coal-tar pitch, make volatility of raw material divide content to bring up to adjusted value, volatile content reaches adjusted value after testing, and hot or cold conditions is delivered to ball press charging tank pressure ball;
4. ball press line pressure ratio and pressure ball size are determined
The minimum rate of accumulation pressure ratio of ball press normal operation is greater than 0.8t/mm, compacting sphere or the unequal oval-shaped ball of three-dimensional dimension, and length direction sphere size is less than 100mm;
5. ball press pressure ball
Cold conditions or the hot raw material of adjusting volatile content are sent in the ball press charging tank, realize balling-up through precompressed, pressure ball;
6. the separation of qualified spheroid
Raw material separates with screening plant after out through ball press, press the pressure ball granularity selection screen size that raw material type, purposes, service requirements or calciner allow calcining, when not needing to calcine, can directly not use as Carbon Materials raw material or metallurgical coke oversize, entering calciner when needing calcining calcines, minus mesh turns back to the ball press charging tank with the raw material of preparing pressure ball, allocates in proportion again pressure ball into;
7. calciner and calcining temperature are determined
Select can-type calcine furnace or rotary kiln, electric calciner, shaft furnace or tunnel furnace wherein a kind of as calciner, get an operation pressure ball oversize and send in the calciner and calcine, calcining temperature is controlled between 600～2000 ℃;
8. calcinated type coke
Product after the calcining is taken out from calciner, be cooled to the i.e. acquisition calcinated type coke of room temperature.
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| CN103130208A (en) * | 2013-03-21 | 2013-06-05 | 任利华 | Method for producing carbon intermediate by using ball pressing process |
| CN107116087A (en) * | 2017-05-08 | 2017-09-01 | 四川川投峨眉铁合金（集团）有限责任公司 | A kind of recoverying and utilizing method of self-baking electrode working end broken end |
| CN111914221A (en) * | 2020-08-25 | 2020-11-10 | 武汉钢铁有限公司 | Process adjustment method for reducing mass percentage of coke with particle size of more than 60mm |
| CN112877086A (en) * | 2021-01-25 | 2021-06-01 | 焦作钧菲津材科技有限公司 | Petroleum coke calcination control method |
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- 2008-08-27 CN CN2012105257573A patent/CN102963879A/en active Pending
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| CN103130208A (en) * | 2013-03-21 | 2013-06-05 | 任利华 | Method for producing carbon intermediate by using ball pressing process |
| CN103130208B (en) * | 2013-03-21 | 2015-09-09 | 任利华 | Ball press technique is adopted to produce the method for charcoal element intermediate |
| CN107116087A (en) * | 2017-05-08 | 2017-09-01 | 四川川投峨眉铁合金（集团）有限责任公司 | A kind of recoverying and utilizing method of self-baking electrode working end broken end |
| CN107116087B (en) * | 2017-05-08 | 2019-04-12 | 四川川投峨眉铁合金（集团）有限责任公司 | A kind of recoverying and utilizing method of self-baking electrode working end broken end |
| CN111914221A (en) * | 2020-08-25 | 2020-11-10 | 武汉钢铁有限公司 | Process adjustment method for reducing mass percentage of coke with particle size of more than 60mm |
| CN111914221B (en) * | 2020-08-25 | 2023-08-18 | 武汉钢铁有限公司 | Process adjustment method for reducing mass percentage of coke with granularity of more than 60mm |
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Application publication date: 20130313 |