CN1990838A - Coke heat stability composition - Google Patents
Coke heat stability composition Download PDFInfo
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- CN1990838A CN1990838A CN 200510048379 CN200510048379A CN1990838A CN 1990838 A CN1990838 A CN 1990838A CN 200510048379 CN200510048379 CN 200510048379 CN 200510048379 A CN200510048379 A CN 200510048379A CN 1990838 A CN1990838 A CN 1990838A
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Abstract
The invention discloses a thermal- stable coke composite. The comprised components and their proportion by weight are as follows: main flame retardant 30- 80%, foaming agent 10- 50%, carbon forming agent 1- 50%, and carbon forming catalyst 1- 50%. The utilization method is to inject composite liquid into coke showing system for extinguishing coke.
Description
Technical field
The present invention relates to a kind of coke heat stability composition.
Background technology
Coke is widely used in fields such as Metal smelting, chemical industry, is important key industry starting material.Coke plays reductive agent, heat supply, supports four effects for carbon and skeleton in blast furnace.In recent years,, increase furnace processor, improve iron quality, adopted in blast-furnace tuyere Coal powder spray, heavy oil, strengthening smelting technology such as oxygen enriched blast for reducing coke consumption.The method of fuel injection makes the kind of blast furnace fuel and goes into the stove mode variation has all been arranged, and has accounted for 10% ~ 30% of whole firing rates from the fuel of tuyere injection.Coke is as thermal source, reductive agent and carbon supplying agenty can be replaced by above-mentioned intensifying technology to a certain extent, but not only fail to be substituted as the loose skeleton function of blast furnace intensifying technology, and with blast furnace maximization and strengthening smelting broad application, this effect becomes more important.
Iron and Steel Production need consume a large amount of high grade cokes, and coke production needs a large amount of colory coking coals again.The coking coal quality requirements is special, and its agglutinating value(of coal) and coking property are the important technological properties of coking coal, has only to adopt to have preferably the coal of agglutinating value(of coal) and coking property and can produce the fine coke.Because increase in demand and resource limit, coking coal price are constantly soaring, quality is difficult to ensure.
In order to change the quality of coke, the hot strength of coke particularly, people attempt carrying out surface modification with the way STRENGTH ON COKE of chemical modification, in the hope of suitably reducing coke in paragraph combustionvelocity sometime, in blast furnace, keep the effect of coke upholder, reduce the consumption of coke.Existing experiment and technology show, the hot strength that some inorganic chemical can modified coke for example, uses certain density boric acid aqueous solution to spray coke, and the hot strength of coke is significantly increased.
Carry out Passivation Treatment and modification by chemical means STRENGTH ON COKE surface, improve the thermostability of coke in blast furnace, can improve the coke supporting role, reduce coke consumption.But the chemical modification method improper use also has its limitation, for example, the coke production coke making process has limited the use of chemical modification method, the requirement of ash and moisture has limited the choice of the selection chemical of compound in the coke quality index, and the decomposition composition of chemical can not bring harm to blast furnace production in addition.Except technology and technical restriction, the cost that chemical modification is handled then is a prior problem.Because with respect to coke price, the price of most chemical is not cheap.Therefore find still difficulty relatively of a satisfactory to both parties technical solution.
Summary of the invention
The objective of the invention is to, filter out suitable chemical, this class chemical can spray or be immersed on coke or the coke surface easily; This class chemical is preferably water miscible; This class chemical can more effectively improve the thermostability of coke than known chemical (as boric acid); This class chemical is cheap and is easy to get.
As mentioned above, what at first will avoid in embodiment of the present invention is, the introducing of chemical heat stablizer can not make coke inherent ash content obviously increase, otherwise, will run counter to desire.
The ash content of coke be the coke analytical sample 850 ± 10 ℃ of following ashing to constant weight, its residue accounts for the quality percentage of burnt sample, press CNS, for metallurgical coke, the coke ash of trade mark I is not more than 12%, and other trade mark is not more than 15% at most, because, coke ash whenever increases 1%, and Wingdale increases by 2.5% approximately with amount, and furnace processor descends 2.2% approximately.Therefore, ash content is the detrimental impurity in the coke, is subjected to the influence of mineral mining, and its main component is dystectic SiO
2And Al
2O
3, coke ash will make it to generate low melting component with flux such as CaO in blast-furnace smelting, and discharges with the molten slag form.In addition, when coke is heated to above the coking temperature in blast furnace, because burnt matter is different with the ash content thermal expansivity, can around ash particles, crack, make coke quicken cracked or efflorescence, and at this moment, exactly need coke to show better thermostability, rather than cracked or efflorescence fast owing to the influence of ash content.Cracked or the efflorescence meeting of coke makes it lose supporting role, influences the rising of gases such as CO and the decline of melting molten iron.In addition, the basic metal in the ash content also can catalysis quicken coke and CO
2Reaction, also make the destruction aggravation of coke.
But everything all has dual character, and some chemical substance is seen ash content beyond doubt from the quality index of coke, but may have the effect of purifying coke burning surface simultaneously.Similar to the burning or the chemical transformation of other materials, the burning of coke is at first also from the surface, if some chemical substance can effectively passivation coke surface, and its consumption is controlled in a suitable scope again, may produce beyond thought effect, because the technical solution that the inventor proposed is with the exist form and the distribution of coke ash have the different of essence usually.The described technical solution of the inventor may relate to and comprise that some are regarded as the chemical substance of ash content, but by the present invention program, these so-called ash contents only are present on the coke surface, rather than usually the ash content of coke be present in coke more body mutually in, thereby avoided causing the cracked or efflorescence of acceleration of coke owing to reasons such as thermal expansions.The technical solution that the inventor proposes attempts to reach a kind of beyond thought effect, goes after profits and advoids disadvantages, and becomes unfavorable into favourable.
Another difficult problem that is faced in the described technical solution of the inventor is that by coke production technology, in whole coke production, carrying out chemical modification with chemical substance STRENGTH ON COKE surface basically can only be from quenching.Because have only from quenching, we just can see so-called coke, though at this moment the temperature of coke may still have about 1000 ℃.As everyone knows, after quenching car entered coke quenching tower, coke quenching water was by the quenching of spraying water of the direct pump of water pump to quenching spray header, and the quenching water spraying time is about 120 seconds, and about 20% water is evaporated in the quenching process.Quenching car stops 40-60 second after the quenching, and superfluous water drop in the car is gone out.Coke after the quenching stays for some time on Jiao Tai, gets final product after making residual water-content evaporation.The present invention program's application runs into several difficult points, and the one, temperature, the temperature of coke is about 1050 ℃ before the quenching, high temperature like this, can chemical substance not be decomposed? the 2nd, the time, have only 120 seconds, the 3rd, the spray water consumption is big.The inventor attempts to find a kind of technical solution or application art, before coke temperature is reduced to envrionment temperature, is soaking a certain amount of chemical modifier on the coke surface, does not bring to coke again simultaneously to exceed the moisture that is limited in the coke quality index.
Embodiment of the present invention:
Selection has the compound composition of certain anti-flaming function, selected compound composition is made into coke thermo-stabilizer solution, colloidal solution or suspension liquid, the coke thermo-stabilizer solution, colloidal solution or the suspension liquid that prepare are sprayed or dip treating pending coke, then coke is dried to qualified getting final product.
Coke heat stability composition of the present invention is made up of fire-retardant host, whipping agent, carbon forming agent, one-tenth C catalyst.
The quality percentage composition of coke heat stability composition of the present invention consists of:
Fire-retardant host 30～80%
Whipping agent 10～50%
Carbon forming agent 1～50%
Become C catalyst 1～50%
The fire-retardant host that the present invention selects is the compound with certain anti-flaming function: organo phosphorous compounds, inorganic phosphorous compound or other mineral compound.
Organo phosphorous compounds of the present invention is phosphoric acid ester, phosphonic acid ester, phosphorous acid ester or microcosmic salt.
Organic phosphine compound of the present invention is a phosphoric acid ester:
R
1, R
2, R
3Be alkyl, aryl, brine alkyl or halogenated aryl.
Organo phosphorous compounds of the present invention is a phosphonic acid ester:
R
1Be alkyl, aryl, thiazolinyl, R
2, R
3Be alkyl or haloalkyl.
Organo phosphorous compounds of the present invention is a phosphorous acid ester:
R
1, R
2, R
3Be alkyl or aryl.
Inorganic phosphorous compound of the present invention is ammonium polyphosphate, triammonium phosphate, Secondary ammonium phosphate, phosphoric acid dihydro amine and their constituent.
Other mineral compound of the present invention is antimonous oxide, aluminium hydroxide or magnesium hydroxide.
Other mineral compound of the present invention also comprises boron compound, as boric acid, borax or zinc borate.
Other mineral compound of the present invention comprises molybdenum compound, as molybdic oxide etc.
Other mineral compound of the present invention can also be selected from nonmetalliferous ore, is specially kaolin Al
4(Si
4O
10) (OH)
8, wilkinite Al
2O
3.4SiO
2.3H
2O, sepiolite Mg
8(H
2O)
4[Si
6O
16]
2(OH)
4.8H
2O, attapulgite Mg
5(H
2O)
4[Si
4O
10]
2(OH)
2Deng natural mineral.
Whipping agent of the present invention is nitrogenous or halogen compounds, comprising: trimeric cyanamide, Dyhard RU 100, urea.
Carbon forming agent of the present invention is the poly-hydroxy carbon-rich compounds, comprising: starch, dextrin, carbohydrate, Mierocrystalline cellulose or polyvalent alcohol.
The one-tenth C catalyst that the present invention selects is generally mineral acid, comprises boric acid, phosphoric acid, hydrochloric acid, sulfuric acid.
The one-tenth C catalyst that the present invention selects also comprises their salt except that above-mentioned mineral acid.
One-tenth C catalyst of the present invention is phosphoric acid, ammonium phosphate or ammonium polyphosphate.
Ammonium polyphosphate of the present invention is (NH
4) n
+ 2PnO
3n+1Or be abbreviated as (NH
4PO
3)
n, n=10～20, molecular weight 500～2500.
Preparation method of composition of the present invention is, above-mentioned fire-retardant host, the rich carbon carbon forming agent of poly-hydroxy compound, nitrogenous or halogen whipping agent compound are mixed into solution with becoming C catalyst.
Using method of the present invention is above-mentioned coke heat stability improved composition solution to be injected coke quenching sprinkling system STRENGTH ON COKE carry out the quenching processing.
Using method of the present invention is directly to prepare above-mentioned coke heat stability improved composition solution in coke quenching millpond.
Using method of the present invention is to spray the ortho-water of certain hour earlier when quenching, again switching spray coke heat stability improved composition solution.
Application art of the present invention is that the spray time of ortho-water is 80～110 seconds, switches coke surface modification purifying agent solution spraying then 40～10 seconds.
Embodiment
Embodiment 1, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent urea 0.5kg, carbon forming agent Mierocrystalline cellulose 0.5kg, water 50kg, fully stirring gets final product, and the solution for preparing is evenly sprayed on the 100kg coke about 200 ℃, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 2, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent urea 0.5kg, carbon forming agent Mierocrystalline cellulose 0.5kg, water 50kg, fully stir stand-by, 50 kilograms of coke are immersed the solution that has prepared, and dipping time is 30 minutes, the centrifugal moisture content of sloughing, 150 ℃ of dryings of retort furnace are carried out the thermostability evaluation by GB GB4000-83 to it.
Embodiment 3, fire-retardant host among the embodiment 1 and catalyzer are replaced with triammonium phosphate, Secondary ammonium phosphate, primary ammonium phosphate respectively, be made into three kinds 50 liters the aqueous solution, then the solution for preparing is evenly sprayed on the 100kg coke of 250 ℃, 200 ℃ and 150 ℃ three kinds of differing tempss respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 4, fire-retardant host among the embodiment 1 and catalyzer are replaced with triammonium phosphate, Secondary ammonium phosphate, primary ammonium phosphate respectively, be made into three kinds 50 liters the aqueous solution, flood, dewater and drying by the method among the embodiment 2, obtain three coke samples, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 5, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent urea 0.5kg, carbon forming agent starch 0.5kg, water 50kg fully mixes, the solution for preparing is divided into three parts of difference evenly to spray on the coke of 250 ℃, 200 ℃ and 150 ℃ three kinds of differing tempss, the heavy 40kg of every part of coke, treat that coke is reduced to room temperature and drying after, by GB GB4000-83 it is carried out the thermostability evaluation.
Embodiment 6, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent urea 0.5kg, carbon forming agent starch 0.5kg, water 50kg fully mixes, flood, dewater and drying by the method among the embodiment 2, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 7, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent trimeric cyanamide 0.5kg, carbon forming agent glycerine 0.5kg, be mixed with three parts 50 liters the aqueous solution, then with the solution for preparing respectively evenly spray on the 100kg coke of 250 ℃, 200 ℃ and 150 ℃ three kinds of differing tempss, treat that coke is reduced to room temperature and drying after, by GB GB4000-83 it is carried out the thermostability evaluation.
Embodiment 8, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent Dyhard RU 100 0.5kg, carbon forming agent glycerine 0.5kg, be mixed with three parts 50 liters the aqueous solution, then the solution for preparing evenly sprayed on the coke of 250 ℃, 200 ℃ and 150 ℃ three kinds of differing tempss respectively, the coke example weight all is 50kg, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 9, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent urea 1kg, carbon forming agent Mierocrystalline cellulose 1kg, water 50kg fully mixes, and the solution for preparing is evenly sprayed on the 40kg coke about 150 ℃ respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 10, fire-retardant host and catalyzer triammonium phosphate 1kg, whipping agent urea 1kg, carbon forming agent polyoxyethylene glycol 1kg, water 50kg fully mixes, and the solution for preparing is evenly sprayed on the 40kg coke about 150 ℃ respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 11, fire-retardant host and catalyzer ammonium phosphate 1kg, whipping agent urea 2kg, carbon forming agent Mierocrystalline cellulose 2kg, water 50kg fully mixes, and the solution for preparing is evenly sprayed on the 40kg coke about 180 ℃ respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 12, fire-retardant host and catalyzer Secondary ammonium phosphate 1kg, whipping agent urea 2kg, carbon forming agent polyoxyethylene glycol 2kg, water 50kg fully mixes, and the solution for preparing is evenly sprayed on the 40kg coke about 180 ℃ respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 13, fire-retardant host and catalyzer ammonium phosphate 2kg, whipping agent urea 0.1kg, carbon forming agent Mierocrystalline cellulose 0.1kg, water 50kg fully mixes, and the solution for preparing is evenly sprayed on the 40kg coke about 220 ℃ respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 14, fire-retardant host and catalyzer primary ammonium phosphate 2kg, whipping agent urea 0.1kg, carbon forming agent polyoxyethylene glycol 0.1kg, water 50kg fully mixes, and the solution for preparing is evenly sprayed on the 40kg coke about 220 ℃ respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 15, fire-retardant host and catalyzer select triammonium phosphate, Secondary ammonium phosphate, each 1kg of primary ammonium phosphate respectively, whipping agent urea 0.5kg, carbon forming agent starch 0.5kg, water 50kg, be mixed with three kinds 50 liters each three parts of the aqueous solution by the method for embodiment 2, count 9 parts of aqueous solution, the aqueous solution with three kinds of fire-retardant hosts of difference evenly sprays on the coke of 250 ℃, 200 ℃ and 150 ℃ three kinds of differing tempss respectively then, the coke example weight all is 50kg, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 16, fire-retardant host and catalyzer select triammonium phosphate, Secondary ammonium phosphate, each 1kg of primary ammonium phosphate respectively, whipping agent urea 0.5kg, carbon forming agent polyoxyethylene glycol 0.5kg, water 50kg, be mixed with three kinds 50 liters each three parts of the aqueous solution by the method for embodiment 2, count 9 parts of aqueous solution, the aqueous solution with three kinds of fire-retardant hosts of difference evenly sprays on the coke of 250 ℃, 200 ℃ and 150 ℃ three kinds of differing tempss respectively then, the coke example weight all is 50kg, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 17, kaolin 1kg, phosphoric acid 0.1kg (by net weight), tripoly phosphate sodium STPP 0.1kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 18, kaolin 1kg, hydrochloric acid 0.1kg (by net weight), tripoly phosphate sodium STPP 0.1kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 350 ℃, 300 ℃, 250 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 19, kaolin 0.5kg, wilkinite 0.5kg, phosphoric acid 0.1kg, urea 1kg, Mierocrystalline cellulose 1kg is made into water temperature and is 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 350 ℃, 300 ℃, 250 ℃, 200 ℃, 150 ℃ respectively, spray time 20 seconds, treat that coke is reduced to room temperature and drying after, by GB it is carried out the thermostability evaluation.
Embodiment 20, kaolin 0.8kg, sepiolite 0.2kg, hydrochloric acid 0.1kg (by net weight), urea 2kg, polyoxyethylene glycol 2kg is made into water temperature and is 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 350 ℃, 300 ℃, 250 ℃, 200 ℃, 150 ℃ respectively, spray time 20 seconds, treat that coke is reduced to room temperature and drying after, by GB it is carried out the thermostability evaluation.
Embodiment 21, sepiolite 1kg, phosphoric acid 0.1kg (by net weight), tripoly phosphate sodium STPP 0.1kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 22, sepiolite 0.8kg, attapulgite 0.2kg hydrochloric acid 0.1kg (by net weight), tripoly phosphate sodium STPP 0.1kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 400 ℃, 300 ℃, 250 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 23, sepiolite 1kg, boric acid 0.1kg (by net weight), urea 0.8kg, Mierocrystalline cellulose 0.8kg, be made into water temperature and be 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 350 ℃, 300 ℃, 250 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 24, sepiolite 0.6kg, wilkinite 0.4kg, hydrochloric acid 0.1kg (by net weight), urea 0.5kg, polyoxyethylene glycol 2kg is made into water temperature and is 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ respectively, spray time 20 seconds, treat that coke is reduced to room temperature and drying after, by GB it is carried out the thermostability evaluation.
Embodiment 25, attapulgite 1kg, phosphoric acid 0.1kg (by net weight), tripoly phosphate sodium STPP 0.1kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 26, attapulgite 1kg, hydrochloric acid 0.1kg (by net weight), tripoly phosphate sodium STPP 0.1kg, glycerine 0.5kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ respectively, spray time 20 seconds, treat that coke is reduced to room temperature and drying after, by GB it is carried out the thermostability evaluation.
Embodiment 27, attapulgite 1kg, boric acid 0.1kg (by net weight), urea 0.5kg, Mierocrystalline cellulose 0.5kg, be made into water temperature and be 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 28, attapulgite 1kg, hydrochloric acid 0.1kg (by net weight), urea 1kg, polyoxyethylene glycol 2kg, be made into water temperature and be 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 29, wilkinite 1kg, phosphoric acid 0.1kg (by net weight), Dyhard RU 100 0.1kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 30, wilkinite 0.8kg, and attapulgite 0.2kg, hydrochloric acid 0.1kg (by net weight), trimeric cyanamide 0.5kg, polyoxyethylene glycol 1kg, water 100kg, being mixed with water temperature is 80 ℃ of outstanding solution, on the dipping 100kg coke, by GB it is carried out the thermostability evaluation.
Embodiment 31, wilkinite 1kg, phosphoric acid 0.1kg (by net weight), urea 0.5kg, Mierocrystalline cellulose 0.5kg, be made into water temperature and be 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 500 ℃, 400 ℃, 300 ℃, 200 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 32, wilkinite 1kg, hydrochloric acid 0.1kg (by net weight), urea 0.5kg, polyoxyethylene glycol 0.5kg, be made into water temperature and be 80 ℃ 100 liters of outstanding solution, should hang solution and evenly be five parts, evenly spray on the 20kg coke of five kinds of differing tempss about 300 ℃, 250 ℃, 200 ℃, 180 ℃, 150 ℃ spray time 20 seconds respectively, after treating that coke is reduced to room temperature and drying, it is carried out the thermostability evaluation by GB.
Embodiment 33, selecting molecular weight is 1000 ammonium polyphosphate 1kg, urea 0.5kg, Mierocrystalline cellulose 0.5kg, be mixed with three parts 50 liters the aqueous solution, fully stirring is stand-by, selects three parts of 50kg to treat the quenching respectively of quenching charcoal respectively, during the coke quenching, elder generation sprayed quenching respectively 80 seconds, 100 seconds, 110 seconds with 80 ℃ ortho-water, switch to ammonium polyphosphate solution then and evenly sprayed again respectively 40 seconds, 20 seconds, 10 seconds, obtain three coke samples, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 34, selecting molecular weight is 1000 ammonium polyphosphate 1kg, urea 0.5kg, polyoxyethylene glycol 0.5kg, be mixed with three parts 50 liters the aqueous solution, fully stirring is stand-by, selects three parts of 50kg to treat the quenching respectively of quenching charcoal respectively, during the coke quenching, elder generation sprayed quenching respectively 80 seconds, 100 seconds, 110 seconds with 80 ℃ ortho-water, switch to ammonium polyphosphate solution then and evenly sprayed again respectively 40 seconds, 20 seconds, 10 seconds, obtain three coke samples, it is carried out the thermostability evaluation by GB GB4000-83.
Embodiment 35, and selecting molecular weight is 500 ammonium polyphosphate 1kg, and all the other are with embodiment 33.
Embodiment 36, and selecting molecular weight is 500 ammonium polyphosphate 1kg, and all the other are with embodiment 34.
Embodiment 37, and selecting molecular weight is 1500 ammonium polyphosphate 1kg, and all the other are with embodiment 33.
Embodiment 38, and selecting molecular weight is 1500 ammonium polyphosphate 1kg, and all the other are with embodiment 34.
Embodiment 39, and selecting molecular weight is 2000 ammonium polyphosphate 1kg, and all the other are with embodiment 33.
Embodiment 40, and selecting molecular weight is 2000 ammonium polyphosphate 1kg, and all the other are with embodiment 34.
Embodiment 41, and selecting molecular weight is 1000 ammonium polyphosphate 1kg, cyanamid dimerization 0.1kg, and polyoxyethylene glycol 0.1kg, all the other are with embodiment 34.
Embodiment 42, and selecting molecular weight is 1000 ammonium polyphosphate 1kg, Dyhard RU 100 1kg, and polyoxyethylene glycol 1kg, all the other are with embodiment 34.
Embodiment 43, and selecting molecular weight is 1000 ammonium polyphosphate 1kg, urea 2kg, and polyoxyethylene glycol 2kg, all the other are with embodiment 34.
Embodiment 44, and selecting molecular weight is 1000 ammonium polyphosphate 1kg, urea 0.5kg, and Mierocrystalline cellulose 0.5kg is mixed with 50 liters the aqueous solution, and the 50kg coke was immersed this aqueous solution 30 minutes, and dehydration back 150 ℃ of dryings in retort furnace are estimated then.
Embodiment 45, and selecting molecular weight is 1000 ammonium polyphosphate 1kg, urea 2kg, and glycerine 2kg is mixed with 50 liters the aqueous solution, and the 50kg coke was immersed this aqueous solution 30 minutes, and dehydration back 150 ℃ of dryings in retort furnace are estimated then.
Embodiment 46, press the embodiment of embodiment 41～45, the molecular weight of ammonium polyphosphate is replaced with 500,1500 and 2,000 three kinds of enforcements respectively get final product.
Embodiment 47, become the thermostability aqueous solution by the formulated of embodiment 17～32, and 20 kilograms of coke are immersed in this solution, and the time was respectively 60 minutes, 30 minutes, 10 minutes, dehydration then, dry, estimate.
Claims (12)
1, a kind of coke heat stability composition, the quality percentage composition of the composition of said composition and component is: fire-retardant host 30～80%, whipping agent 10～50%, carbon forming agent 1～50% becomes C catalyst 1～50%; Wherein fire-retardant host is selected from organo phosphorous compounds, inorganic phosphorous compound or other mineral compound; Whipping agent is selected from nitrogenous or halogen compounds; Carbon forming agent is the poly-hydroxy carbon-rich compounds; Become C catalyst to be selected from boric acid, phosphoric acid, hydrochloric acid, sulfuric acid or their salt.
2, composition as claimed in claim 1 is characterized in that organo phosphorous compounds is phosphoric acid ester, phosphonic acid ester, phosphorous acid ester or microcosmic salt.
3, composition as claimed in claim 2 is characterized in that inorganic phosphorous compound is ammonium polyphosphate, triammonium phosphate, Secondary ammonium phosphate, phosphoric acid dihydro amine and their constituent.
4, composition as claimed in claim 1 is characterized in that other mineral compound is antimonous oxide, aluminium hydroxide or magnesium hydroxide.
5, composition as claimed in claim 1 is characterized in that other mineral compound is boric acid, borax or zinc borate.
6, composition as claimed in claim 1 is characterized in that other mineral compound is a molybdenum compound.
7, composition as claimed in claim 1 is characterized in that other mineral compound is selected from nonmetalliferous ore, is kaolin, wilkinite, sepiolite or attapulgite.
8, composition as claimed in claim 1 is characterized in that whipping agent is trimeric cyanamide, Dyhard RU 100 or urea.
9, composition as claimed in claim 1 is characterized in that carbon forming agent is starch, dextrin, carbohydrate, Mierocrystalline cellulose or polyvalent alcohol.
10, composition as claimed in claim 1 is characterized in that into C catalyst and is selected from and draws together boric acid, phosphoric acid, hydrochloric acid, sulfuric acid or their salt.
11, as claim 1 or 10 described compositions, it is characterized in that into C catalyst is phosphoric acid, ammonium phosphate or ammonium polyphosphate.
12, composition as claimed in claim 11 is characterized in that the molecular formula of ammonium polyphosphate is (NH
4) n
+ 2PnO
3n+1Or be abbreviated as (NH
4PO
3)
n, n=10～20, molecular weight 500～2500.
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| CN 200510048379 CN1990838A (en) | 2005-12-28 | 2005-12-28 | Coke heat stability composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510048379 CN1990838A (en) | 2005-12-28 | 2005-12-28 | Coke heat stability composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433135A (en) * | 2011-08-10 | 2012-05-02 | 王长龙 | Practical environment-friendly type water-quenched coke strength reinforcing agent |
| CN102533301A (en) * | 2012-01-13 | 2012-07-04 | 曹金贵 | Coking coal modifier |
| CN102786963A (en) * | 2012-08-02 | 2012-11-21 | 武钢集团昆明钢铁股份有限公司 | Method for improving high-temperature metallurgical property of coke |
| CN103045280A (en) * | 2013-01-24 | 2013-04-17 | 重庆路牛科技有限责任公司 | Pulverized Anthracite modifying agent and coal blending and coking method using same |
| CN104152210A (en) * | 2014-09-02 | 2014-11-19 | 河南炬能能源科技有限公司 | Coke enhancing solution |
| CN106118795A (en) * | 2016-06-25 | 2016-11-16 | 陈毅忠 | A kind of preparation method preventing spontaneous combustionof coal to be combined retardant |
| CN106915921A (en) * | 2017-03-22 | 2017-07-04 | 佛山市蓝瑞欧特信息服务有限公司 | A kind of fire retardant man-made quartzite slate and preparation method thereof |
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2005
- 2005-12-28 CN CN 200510048379 patent/CN1990838A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433135A (en) * | 2011-08-10 | 2012-05-02 | 王长龙 | Practical environment-friendly type water-quenched coke strength reinforcing agent |
| CN102433135B (en) * | 2011-08-10 | 2013-10-30 | 王长龙 | Environment-friendly type water-quenched coke strength reinforcing agent |
| CN102533301A (en) * | 2012-01-13 | 2012-07-04 | 曹金贵 | Coking coal modifier |
| CN102533301B (en) * | 2012-01-13 | 2013-10-30 | 曹金贵 | Coking coal modifier |
| CN102786963A (en) * | 2012-08-02 | 2012-11-21 | 武钢集团昆明钢铁股份有限公司 | Method for improving high-temperature metallurgical property of coke |
| CN103045280A (en) * | 2013-01-24 | 2013-04-17 | 重庆路牛科技有限责任公司 | Pulverized Anthracite modifying agent and coal blending and coking method using same |
| CN103045280B (en) * | 2013-01-24 | 2014-06-11 | 重庆路牛科技有限责任公司 | Pulverized Anthracite modifying agent and coal blending and coking method using same |
| CN104152210A (en) * | 2014-09-02 | 2014-11-19 | 河南炬能能源科技有限公司 | Coke enhancing solution |
| CN104152210B (en) * | 2014-09-02 | 2016-06-08 | 河南炬能能源科技有限公司 | A kind of coke reinforced solution |
| CN106118795A (en) * | 2016-06-25 | 2016-11-16 | 陈毅忠 | A kind of preparation method preventing spontaneous combustionof coal to be combined retardant |
| CN106118795B (en) * | 2016-06-25 | 2018-11-06 | 唐钢美锦（唐山）煤化工有限公司 | A kind of preparation method preventing the compound retardant of spontaneous combustionof coal |
| CN106915921A (en) * | 2017-03-22 | 2017-07-04 | 佛山市蓝瑞欧特信息服务有限公司 | A kind of fire retardant man-made quartzite slate and preparation method thereof |
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