Summary of the invention
The object of this invention is to provide a kind of efficient controlled carbon black products of iodine and production technique thereof of inhaling, this production technique belongs to the mixed gas slotless manufacturing technologies of carbon black in contact process, this production technique according to carbon black quality realized fire tube height and burner aperture quick-replaceable, greatly improve its efficiency, also realized the controlled of iodine absorption value simultaneously.The product of this explained hereafter is colour carbon black, has that degree of mobilization is high, blackness is high, strong coloring force and a good feature of glossiness.
Carbon black products provided by the invention is colour carbon black, comprises C611, C311, C111 series carbon black.The raw material of described carbon black products comprises: stock oil and year combustion gas, and described stock oil with the weight proportion that carries combustion gas is: 360 ~ 400:140 ~ 240; Stock oil is carbolineum, and carrying combustion gas is coke-oven gas.
Further, the moisture of described stock oil is less than 4%, and density is 1.13 ~ 1.16g/mL, described coke-oven gas low heat value>=16500kJ/ m3, H
2s≤300mg/m3, NH
3≤ 100mg/m3, naphthalene≤500mg/m3, tar≤50mg/m3, density is 0.45 ~ 0.50kg/m
3.
Manufacturing technologies of carbon black provided by the invention, comprises the following steps:
(1) air, by the mode of natural air inlet, enters fiery room by fiery room two bottom sides adjustable scoop, and this air intake mode does not need additional Fan Energy-saving, and the aperture adjustment of fluorescent tube height and burner is convenient;
(2) stock oil is squeezed into carbolineum preheating can by oil pump, enters still preheater preheating by carbolineum test tank dosing, and preheating temperature is controlled at 160 DEG C ~ 200 DEG C, then enters gasification still;
(3) in gasification still stock oil gasification with carry a combustion gas mixing, the temperature of mixing is controlled at 300 DEG C ~ 340 DEG C, pressure-controlling, at 2000 DEG C ~ 2800Pa, then enters the fluorescent tube in fiery room, carries out incomplete combustion by the fluorescent tube arranged in length and breadth and burner above;
Combustion gas in described year, before entering gasification still, is first rounded in fiery room by gas pipeline, takes full advantage of fiery room waste heat and heats, and the temperature of carrying combustion gas is controlled at 450 DEG C ~ 550 DEG C, and pressure-controlling is at 2000 ~ 2800Pa.
(4) react the rear high-temperature product flue gas producing first and after year combustion gas heat exchange, enter the total pipeline being centered around outside fiery room and carry out air-cooled heat exchange, the temperature of product flue gas is down to below 300 DEG C;
(5) product flue gas enters air conveying wind system after cyclonic separator, bag filter temperature are down to 180 DEG C ~ 200 DEG C, sends into granulator granulation by air conveying blower fan, makes carbon black products packaging warehouse-in after granulation after lift, sieve apparatus;
(6) the outer row after purifying of the tail gas in bag filter;
(7) pitch in the carbolineum of gasification still bottom accumulation is delivered to asphalt tank through bitumenpump, and in asphalt tank, the lhv gas of hard pitch volatilization reclaims after pitch washing tower.This step has not only reclaimed pitch and has also reduced the pollution to environment, has both had an economic benefit and has also had good environmental benefit.
In such scheme, the fluorescent tube in described fiery room, for arranging in length and breadth, is provided with 110 ~ 200, and fluorescent tube is 1 ~ 3 meter apart from the distance of bottom, fiery room, and fluorescent tube is provided with burner, and the aperture of burner is 0.3 ~ 3mm.
Further, described sieve apparatus is selected 20 ~ 200 mesh sieves.
Can regulate product performance by the mode of quick adjustment burner according to this production technique of the variation in market, particularly fiery room height and processing parameter adjustment can be controlled the iodine absorption value of product carbon black.
The present invention is taking carbolineum as stock oil, taking coke-oven gas as carrying combustion gas, adopt the proportioning of rational carbolineum and coke-oven gas, be adjustable fire tube by changing traditional fixing fire tube height, fixing burner aperture is can regulating burning nozzle aperture, not only improve the efficiency of producing, and realized the controlled of carbon black iodine absorption number.The colour carbon black particle diameter that the present invention produces is medium, size distribution is narrower, its surperficial active function groups is higher, carbon black is after tablets press, make the serial carbon black products such as C611, therefore this production technique efficiency is high, can regulate as required production technique to make the colour carbon black of different iodine absorption values, and it is high that this product has degree of mobilization, blackness is high, the feature that strong coloring force and glossiness are good, and raw material is easily purchased, production cost is low, large scale investment is produced, the pre-thermal recovery fire of heat-carrying gas room pre-heating technique is a conservation measures, in production process, burner is changed the product that succinctly can produce different qualities and is had good economic benefit.
The C611 series carbon black that production technique of the present invention is produced is mainly used in the industries such as ink product, plastics and papermaking; C311 carbon black is mainly used in the industries such as the plastics of coating, leatherware, ink, high-quality, has splendid uvioresistant, antioxidant property in polyolefin master batch; C111 carbon black is mainly used in aterrimus coating, the toning of high-grade plastics machine synthon, the industries such as disc, aterrimus goods.
Embodiment
Further illustrate the present invention below by embodiment, but be not limited to following examples.
Embodiment 1: preparation C611 series carbon black products
First in conjunction with Fig. 1, technical process of the present invention is described:
(1) stock oil that comes from carbolineum storage tank 1 is squeezed into carbolineum preheating can 2 by oil pump 3, enters still preheater 5 preheatings by carbolineum test tank 4 dosings, and preheating temperature is controlled at 160 DEG C ~ 200 DEG C, then enters gasification still 6;
(2) year combustion gas that comes from coke-oven coal gas tank 7 is before entering gasification still 6, first round in fiery room 8 by gas pipeline, take full advantage of fiery room waste heat and heat, the temperature of carrying combustion gas is controlled at 450 DEG C ~ 550 DEG C, and pressure-controlling is at 2000 ~ 2800Pa.
(3) in the interior stock oil gasification of gasification still 6 and a year combustion gas mixing, the temperature of mixing is controlled at 300 DEG C ~ 340 DEG C, pressure-controlling, at 2000 DEG C ~ 2800Pa, then enters the fluorescent tube in fiery room 8, carries out incomplete combustion by more than 140 fluorescent tube by arranging in length and breadth and burner above.
Air, by the mode of natural air inlet, enters fiery room by fiery room two bottom sides adjustable ventilation door, and this air intake mode does not need additional Fan Energy-saving outer and easy to adjust, only needs to adjust the air door of bottom, fiery room.
(4) react the rear high-temperature product flue gas producing first and after year combustion gas heat exchange, enter the total pipeline being centered around outside fiery room 8 and carry out air-cooled heat exchange, the temperature of product flue gas is down to below 300 DEG C.
(5) product flue gas enters air conveying wind system through cyclonic separator 10, bag filter 11 temperature after being down to 180 DEG C ~ 200 DEG C; send into tablets press 13 granulations by air conveying blower fan 12, after granulation, after lift 14, carbon black storage tank 15, wrapping machine 16, make carbon black products packaging warehouse-in.
(6) the outer row after purifying of the tail gas in bag filter 11.
(7) pitch in the carbolineum of gasification still 6 bottom accumulation is delivered to asphalt tank 18 through bitumenpump 17, in asphalt tank 18, the lhv gas of hard pitch volatilization reclaims after pitch washing tower 20, not only reclaimed pitch and also reduced the pollution to environment, environmental benefit in addition has both had an economic benefit.
The present embodiment adopts the reaction unit shown in Fig. 1 and above-mentioned reaction principle to prepare C611 series carbon black products, comprises the following steps:
(1) air, by the mode of natural air inlet, enters fiery room by fiery room two bottom sides adjustable ventilation door, and this air intake mode does not need additional Fan Energy-saving outer and easy to adjust, only needs to adjust the air door of bottom, fiery room;
(2) 360kg/h stock oil is squeezed into carbolineum preheating can by oil pump, enters still preheater preheating by test tank dosing mode, and preheating temperature is controlled at 160 DEG C, then enters gasification still,
(3) 140kg/h carries combustion gas and rounds in fiery room by its pipeline and take full advantage of fiery room waste heat and heat, and the temperature of carrying combustion gas is controlled at 450 DEG C, and pressure-controlling is at 1800Pa.
(4) stock oil gasification and a year combustion gas mixing in gasification still, the temperature of mixing is controlled at 300 DEG C, and pressure-controlling, at 2000Pa, then enters the fluorescent tube in fiery room, and heightening fluorescent tube height is to be 2mm apart from 2.0 meters of bottoms, fiery room and burner diameter;
Described stock oil is carbolineum, and carrying combustion gas is coke-oven gas; The moisture of described stock oil is less than 4%, and density is 1.13g/mL, described coke-oven gas low heat value>=16500kJ/ m3, H
2s≤300mg/m3, NH
3≤ 100mg/m3, naphthalene≤500mg/m3, tar≤50mg/m3, density is 0.451kg/m
3.Carbolineum consumption is 360kg per hour, and coke-oven gas consumption is 310m3 per hour.
(5) react the rear high-temperature product flue gas producing first and after year combustion gas heat exchange, enter the total pipeline being centered around outside fiery room and carry out air-cooled heat exchange, the temperature of product flue gas is down to below 300 DEG C.
(6) product flue gas enters air conveying wind system through cyclonic separator, bag filter temperature after being down to 180 DEG C; make a gift to someone into granulator granulation by air conveying blower fan, after granulation, after chapelet, 150 mesh sieves, make C611 series carbon black packing of product warehouse-in.
(7) the outer row after purifying of the tail gas in described bag filter.
Test index and the reference standard of the C611 series carbon black products that production technique of the present invention is produced are as follows:
Project |
Test value |
Reference value (GB/T7044-2003) |
Blackness (reflectivity) |
≤44 |
≤44 |
Tinting strength % |
114 |
≥106 |
DBP absorption value (mL/g) |
1.02 |
≤1. 2 |
Weight loss on heating (massfraction) % |
0.9 |
≤4.0 |
Fugitive constituent (massfraction) % |
6.0 |
≥3.0 |
Ash content (massfraction) % |
0.01 |
≤0.2 |
35 DEG C of degree of mobilization |
24 |
≥23 |
pH |
3.1 |
2~6 |
Bi Biao Mian Ji ㎡/g |
196 |
80~120 |
The C611 series carbon black that production technique of the present invention is produced is mainly used in the industries such as ink product, plastics and papermaking.
Embodiment 2: preparation C311 series carbon black products
The present embodiment adopts the reaction unit shown in Fig. 1 and above-mentioned reaction principle to prepare C311 series carbon black products, comprises the following steps:
(1) air, by the mode of natural air inlet, enters fiery room by fiery room two bottom sides adjustable ventilation door, and this air intake mode does not need additional Fan Energy-saving outer and easy to adjust, only needs to adjust the air door of bottom, fiery room;
(2) 380kg/h stock oil is squeezed into carbolineum preheating can by oil pump, by preset time section dosing mode enter still preheater preheating, preheating temperature is controlled at 180 DEG C, then enters gasification still,
(3) 200kg/h carries combustion gas and rounds in fiery room by its pipeline and take full advantage of fiery room waste heat and heat, and the temperature of carrying combustion gas is controlled at 520 DEG C, and pressure-controlling is at 2400Pa.
(4) stock oil gasification and a year combustion gas mixing in gasification still, the temperature of mixing is controlled at 320 DEG C, and pressure-controlling, at 2100Pa, then enters the fluorescent tube in fiery room, and heightening fluorescent tube height is to be 1.6mm apart from 1.0 meters of bottoms, fiery room and burner diameter;
Described stock oil is carbolineum, and carrying combustion gas is coke-oven gas; The moisture of described stock oil is less than 4%, and density is 1.13g/mL, described coke-oven gas low heat value>=16500kJ/ m3, H
2s≤300mg/m3, NH
3≤ 100mg/m3, naphthalene≤500mg/m3, tar≤50mg/m3, density is 0.451kg/m
3.Carbolineum consumption is 380kg per hour, and coke-oven gas consumption is 443m3 per hour.
(5) react the rear high-temperature product flue gas producing first and after year combustion gas heat exchange, enter the total pipeline being centered around outside fiery room and carry out air-cooled heat exchange, the temperature of product flue gas is down to below 300 DEG C.
(6) product flue gas enters air conveying wind system through cyclonic separator, bag filter temperature after being down to 190 DEG C; make a gift to someone into granulator granulation by air conveying blower fan, after granulation, after chapelet, 180 mesh sieves, make C311 series carbon black packing of product warehouse-in.
(7) the outer row after purifying of the tail gas in described bag filter.
Test index and the reference standard of the C311 series carbon black products that production technique of the present invention is produced are as follows:
Project |
Test value |
Reference value GB/T7044-2003 |
Blackness (reflectivity) |
≤32 |
≤32 |
Tinting strength % |
128 |
≥109 |
DBP absorption value (mL/g) |
1.04 |
≤1.3 |
Weight loss on heating (massfraction) % |
1.16 |
≤5.0 |
Fugitive constituent (massfraction) % |
6.7 |
≥3.0 |
Ash content (massfraction) % |
0.05 |
≤0.2 |
35 DEG C of degree of mobilization |
23 |
≥16 |
pH |
2.5 |
2~6 |
Bi Biao Mian Ji ㎡/g |
262 |
150~400 |
The C311 series carbon black that production technique of the present invention is produced is mainly used in the industries such as the plastics of coating, leatherware, ink, high-quality, has splendid uvioresistant, antioxidant property in polyolefin master batch.
Embodiment 3: preparation C111 series carbon black products
The present embodiment adopts the reaction unit shown in Fig. 1 and above-mentioned reaction principle to prepare C111 series carbon black products, comprises the following steps:
(1) air, by the mode of natural air inlet, enters fiery room by fiery room two bottom sides adjustable ventilation door, and this air intake mode does not need additional Fan Energy-saving outer and easy to adjust, only needs to adjust the air door of bottom, fiery room;
(2) 400kg/h stock oil is squeezed into carbolineum preheating can by oil pump, by preset time section dosing mode enter still preheater preheating, preheating temperature is controlled at 200 DEG C, then enters gasification still,
(3) 240kg/h carries combustion gas and rounds in fiery room by its pipeline and take full advantage of fiery room waste heat and heat, and the temperature of carrying combustion gas is controlled at 550 DEG C, and pressure-controlling is at 2800Pa.
(4) stock oil gasification and a year combustion gas mixing in gasification still, the temperature of mixing is controlled at 340 DEG C, and pressure-controlling, at 2200Pa, then enters the fluorescent tube in fiery room, and heightening fluorescent tube height is to be that 1.5m and burner diameter are 1.2mm apart from bottom, fiery room;
Described stock oil is carbolineum, and carrying combustion gas is coke-oven gas; The moisture of described stock oil is less than 4%, and density is 1.13g/mL, described coke-oven gas low heat value>=16500kJ/ m3, H
2s≤300mg/m3, NH
3≤ 100mg/m3, naphthalene≤500mg/m3, tar≤50mg/m3, density is 0.451kg/m
3.Carbolineum consumption is 400kg per hour, and coke-oven gas consumption is 532m3.
(5) react the rear high-temperature product flue gas producing first and after year combustion gas heat exchange, enter the total pipeline being centered around outside fiery room and carry out air-cooled heat exchange, the temperature of product flue gas is down to below 300 DEG C.
(6) product flue gas enters air conveying wind system through cyclonic separator, bag filter temperature after being down to 200 DEG C; make a gift to someone into granulator granulation by air conveying blower fan, after granulation, after chapelet, 200 mesh sieves, make C111 series carbon black packing of product warehouse-in.
(7) the outer row after purifying of the tail gas in described bag filter.
Test index and the reference standard of the C111 series carbon black products that production technique of the present invention is produced are as follows:
Project |
Test value |
Reference value GB/T7044-2003 |
Blackness (reflectivity) |
≤20 |
≤20 |
Tinting strength % |
144 |
≥109 |
DBP absorption value (mL/g) |
1.13 |
≤1.8 |
Weight loss on heating (massfraction) % |
1.8 |
≤6.0 |
Fugitive constituent (massfraction) % |
8.2 |
≥3.0 |
Ash content (massfraction) % |
0.01 |
≤0.5 |
35 DEG C of degree of mobilization |
27 |
≥18 |
pH |
2.1 |
2~6 |
Bi Biao Mian Ji ㎡/g |
333 |
200~600 |
The C111 series carbon black that production technique of the present invention is produced is mainly used in aterrimus coating, the toning of high-grade plastics machine synthon, the industries such as disc, aterrimus goods.