CN101343582A - Method for preparing moulded coke with ball press technique - Google Patents
Method for preparing moulded coke with ball press technique Download PDFInfo
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- CN101343582A CN101343582A CN 200810012949 CN200810012949A CN101343582A CN 101343582 A CN101343582 A CN 101343582A CN 200810012949 CN200810012949 CN 200810012949 CN 200810012949 A CN200810012949 A CN 200810012949A CN 101343582 A CN101343582 A CN 101343582A
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Abstract
The invention relates to a formed charred coal production method which adopts ball pressing process. The formed charred coal production method is characterized in that: one or a mixture of more than one of petrolatum coke with or without calcination pretreatment, pitch coke, electric calcined coal, metallurgical coke, natural graphite, artificial graphite and production return material and reclaimed materials of carbon products is adopted as a raw material; the process method for producing formed charred coal by ball pressing process of a ball pressing machine controls the maximum grain size of the raw material of between 5 mm and 0.01 mm during ball pressing according to the variety of the raw material and the size difference of volatile matters; the content of the volatile matters of the raw material is adjusted and controlled within the range of 7 percent to 20 percent; and the lowest line pressure ratio is controlled to be larger than 0.8 t/mm during the ball pressing by the ball pressing machine. The formed charred coal adopts a ball shape or an ellipsoid shape with unequal three-dimensional sizes, the volume density is larger than 1.3 g/ cm<3>, the compression strength is larger than 20 MPa, the porosity of the pressed parallel surfaces of the balls are lower than that of the pressed vertical surfaces, and the formed charred coal has graphitized anisotropy property. The invention has the advantages that the resources are protected and fully used, the environment is purified, and the high quality formed charred coal products can be produced.
Description
Technical field
The invention belongs to chemical technology field, the production method of raw material of wood-charcoal material and raw material thereof, particularly a kind of is raw material with the powdery coke, adopts the method for ball press technique type of production coke.
Background technology
Ubiquity volume densities such as the raw material of raw material of wood-charcoal material, metallurgical coke, intensity are low, and quality fluctuation is big, in production, storage, transportation, use, produces a large amount of powders, dust especially, and serious environment pollution causes the wasting of resources simultaneously, the restriction Economic development.To produce after-smithing petroleum coke is example, reaches 50% when above less than 3mm granularity content in the refinery coke before forging, and 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%.After-smithing petroleum coke with ball press technique production is a raw material, the prebaked anode of producing, the minimizing wedding agent coal-tar pitch add-on 20% of comparing with common after-smithing petroleum coke.Volume density reaches 1.62g/cm
3Therefore, adopt ball press technique type of production coke technology, both protected resource, made full use of resource, also purified environment, can produce high-quality formed coke charcoal product again.
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: refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product were produced returns, reclaimed materials before employing was forged, and 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 concrete implementation step of the method for 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
Refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product were produced returns, reclaimed materials before employing was forged, 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, earlier use crusher in crushing, sieve again, minus mesh enters subsequent processing, oversize turns back to and continues in the crusher to sieve after the fragmentation again;
(2), when powder quantity is many in the raw material, screening earlier, minus mesh enters subsequent processing, oversize turns back to screening again 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, directly enter subsequent processing less than pressure ball raw material maximum particle size;
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-purpose sealing 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: get being lower than the adjusted value volatile matter or not having the volatile matter raw material of release mesh, is wedding agent to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of product between the coal-tar pitch with oil extract heavy oil, adopts cold conditions, hot two kinds of inflation method:
A: cold conditions adjustment: one or more of release mesh are lower than the adjusted value volatile matter or do not have the volatile content raw material and deliver in the mixing machine, the oil extract heavy oil that adds the normal temperature liquid state to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of 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 do not have the volatile content raw material 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 to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of 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 works better 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 ball press comes out, pressing raw material type, purposes, service requirements or calciner allows incinerating pressure ball granularity to select screen size, when not needing to calcine, can directly not use oversize as raw material of wood-charcoal material raw material or metallurgical coke, 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 pressure ball again in proportion 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
Come out from calciner, what 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 made full use 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 concrete implementation step of method 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
Refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product were produced returns, reclaimed materials before employing was forged, 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, earlier use crusher in crushing, sieve again, minus mesh enters subsequent processing, oversize turns back to and continues in the crusher to sieve after the fragmentation again;
(2), when powder quantity is many in the raw material, screening earlier, minus mesh enters subsequent processing, oversize turns back to screening again 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 1200 ℃ of constant temperature test electric furnaces fast, 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 preceding 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 maximum during with calcining compacting spheroid, the maximum volatile content when not producing bubble again simultaneously generally is controlled in 7～20% scopes as best adjusted value.Formed coke charcoal volume density is big, intensity is high when requiring, during good conductivity, volatile content is got big 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-purpose sealing 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: get being lower than the adjusted value volatile matter or not having the volatile matter raw material of release mesh, is wedding agent to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of product between the coal-tar pitch with oil extract heavy oil, adopts cold conditions, hot two kinds of inflation method:
A: cold conditions adjustment: one or more of release mesh are lower than the adjusted value volatile matter or do not have the volatile content raw material and deliver in the mixing machine, the oil extract heavy oil that adds the normal temperature liquid state to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of 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 do not have the volatile content raw material 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 to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of 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 works better line pressure ratio greater than 0.8t/mm, according to formed coke charcoal purposes, service requirements and 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 promptly has whole ball after ball press comes out, broken ball and other powder of different grain size level are also arranged, and need separate with screening plant.Pressing raw material type, purposes, service requirements or calciner allows incinerating pressure ball granularity to select screen size, when not needing to calcine, can directly not use oversize as raw material of wood-charcoal material raw material or metallurgical coke, 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 pressure ball again in proportion 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
Come out from calciner, what reach room temperature is the calcinated type coke.According to the difference of selecting raw material type can be directly as the raw material or the metallurgical coke use of carbon product, greying goods, thickener.
Embodiment 1
Prebaked anode is with forging back oil formed coke production method
(1), material choice: what get volatile matter 9.8% is raw material based on the preceding refinery coke of forging of powder;
(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%, the volatile matter adjustment finished;
(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 after ball press comes out 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 pressure ball again in proportion into;
(7), calciner and calcining temperature: oversize enter rotary kiln calcine routinely before the refinery coke method calcine 1350 ℃ of the highest calcining temperatures;
(8), forge back oil formed coke: come out from rotary kiln, reach being of room temperature and forge back oil formed coke.Volume density 1.54g/cm
3Compressive strength 41Mpa; The raw material that can be used as 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 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%, the volatile matter adjustment finished;
(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 after ball press comes out 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 pressure ball again in proportion 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: come out from can-type calcine furnace, 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 a raw material;
(2), granularity control: because of bulk material quantity in the raw material many, earlier with 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%, the volatile matter adjustment finished;
(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 after ball press comes out 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 pressure ball again in proportion into;
(7), calciner and calcining temperature: oversize enters electric calciner and calcines, 1800 ℃ of the highest calcining temperatures;
(8), greying type charcoal: come out from electric calciner, 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 carbon products such as graphitized electrode uses.
Claims (6)
1, a kind of method that adopts ball press technique type of production coke, it is characterized in that: refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product were produced returns, reclaimed materials before employing was forged, and 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.
2, the method for employing ball press technique type of production coke as claimed in claim 1, it is characterized in that: 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.
3, the method for employing ball press technique type of production coke as claimed in claim 1 is characterized in that: the concrete implementation step of the method for 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
Refinery coke or after-smithing petroleum coke, pitch coke, electric forging coal, metallurgical coke, natural graphite, synthetic graphite, carbon product were produced returns, reclaimed materials before employing was forged, 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, earlier use crusher in crushing, sieve again, minus mesh enters subsequent processing, oversize turns back to and continues in the crusher to sieve after the fragmentation again;
(2), when powder quantity is many in the raw material, screening earlier, minus mesh enters subsequent processing, oversize turns back to screening again 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, directly enter subsequent processing less than pressure ball raw material maximum particle size; 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 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-purpose sealing 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: get being lower than the adjusted value volatile matter or not having the volatile matter raw material of release mesh, is wedding agent to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of product between the coal-tar pitch with oil extract heavy oil, adopts cold conditions, hot two kinds of inflation method:
A: cold conditions adjustment: one or more of release mesh are lower than the adjusted value volatile matter or do not have the volatile content raw material and deliver in the mixing machine, the oil extract heavy oil that adds the normal temperature liquid state to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of 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 do not have the volatile content raw material 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 to product, coal tar extract carbolineum between the pitch to wherein a kind of or above-mentioned more than one mixtures of 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 works better 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 ball press comes out, pressing raw material type, purposes, service requirements or calciner allows incinerating pressure ball granularity to select screen size, when not needing to calcine, can directly not use oversize as raw material of wood-charcoal material raw material or metallurgical coke, 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 pressure ball again in proportion 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
Come out from calciner, what reach room temperature is the calcinated type coke.
4, the method for employing ball press technique type of production coke as claimed in claim 3 is characterized in that: prebaked anode with forging back oil formed coke production method is:
(1), material choice: what get volatile matter 9.8% is raw material based on the preceding refinery coke of forging of powder;
(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%, the volatile matter adjustment finished;
(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 after ball press comes out 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 pressure ball again in proportion into;
(7), calciner and calcining temperature: oversize enter rotary kiln calcine routinely before the refinery coke method calcine 1350 ℃ of the highest calcining temperatures;
(8), forge back oil formed coke: come out from rotary kiln, reach being of room temperature and forge back oil formed coke, volume density 1.54g/cm
3Compressive strength 41Mpa.
5, the method for employing ball press technique type of production coke as claimed in claim 3, it is characterized in that: the metallurgical formed coke production method is:
(1), material choice: choosing the granularity that produces in metallurgical coke production, transportation, the use 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%, the volatile matter adjustment finished;
(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 after ball press comes out 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 pressure ball again in proportion 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: come out from can-type calcine furnace, reach the metallurgical formed coke that is of room temperature, volume density 1.35g/cm
3Compressive strength 28Mpa.
6, the method for employing ball press technique type of production coke as claimed in claim 3 is characterized in that: greying type charcoal production method is:
(1), material choice: choose that the graphitized charcoal cellulose product is produced returns, reclaimed materials is a raw material;
(2), granularity control: because of bulk material quantity in the raw material many, earlier with 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%, the volatile matter adjustment finished;
(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 after ball press comes out 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 pressure ball again in proportion into;
(7), calciner and calcining temperature: oversize enters electric calciner and calcines, 1800 ℃ of the highest calcining temperatures;
(8), greying type charcoal: come out from electric calciner, reach the greying type that the is charcoal of room temperature, volume density 1.59g/cm
3Compressive strength 39Mpa.
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| CN201210525761XA Division CN102963880A (en) | 2008-08-27 | 2008-08-27 | Calcined petroleum coke produced by ball pressing technology and production method thereof |
| CN 201210525771 Division CN102965172A (en) | 2008-08-27 | 2008-08-27 | Metallurgy formed coke by ball pressing technology and production method thereof |
| CN2012105257770A Division CN102963881A (en) | 2008-08-27 | 2008-08-27 | Graphite formed carbon produced by ball pressing technology and production method thereof |
| CN2012105257573A Division CN102963879A (en) | 2008-08-27 | 2008-08-27 | Formed coke produced by ball pressing technology and production method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887503A (en) * | 2011-07-22 | 2013-01-23 | 任利华 | Method for reducing content of coal pitch and producing carbon product |
| CN103042712A (en) * | 2012-12-17 | 2013-04-17 | 常州亚邦化学有限公司 | Ball press machine |
| CN103224397A (en) * | 2013-05-16 | 2013-07-31 | 任利华 | Method for producing high-density prebaked anode by adopting carbon intermediate |
| CN107384494A (en) * | 2017-07-28 | 2017-11-24 | 玉门市利丰洁净煤有限公司 | A kind of high heating value Filter Tuber For Clean Coal and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1048834A (en) * | 1990-05-18 | 1991-01-30 | 东新电碳厂 | The manufacture method of carbon materials |
| CN1063777C (en) * | 1997-11-07 | 2001-03-28 | 张炳魁 | Metallurgical waste ash content controlled formed coke and molding coal and its producing method |
| AUPS037402A0 (en) * | 2002-02-07 | 2002-02-28 | Commonwealth Scientific And Industrial Research Organisation | A process for producing metallurgical coke |
| CN1227327C (en) * | 2003-05-18 | 2005-11-16 | 鞍山科技大学 | Compressed and calcined petroleum coke and its production process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887503A (en) * | 2011-07-22 | 2013-01-23 | 任利华 | Method for reducing content of coal pitch and producing carbon product |
| CN102887503B (en) * | 2011-07-22 | 2014-08-13 | 任利华 | Method for reducing content of coal pitch and producing carbon product |
| CN103042712A (en) * | 2012-12-17 | 2013-04-17 | 常州亚邦化学有限公司 | Ball press machine |
| CN103224397A (en) * | 2013-05-16 | 2013-07-31 | 任利华 | Method for producing high-density prebaked anode by adopting carbon intermediate |
| CN107384494A (en) * | 2017-07-28 | 2017-11-24 | 玉门市利丰洁净煤有限公司 | A kind of high heating value Filter Tuber For Clean Coal and preparation method thereof |
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| CN101343582B (en) | 2013-04-10 |
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