CN207121427U - A kind of calcium carbide furnace system of hydrogen and oxygen mixed injection and heat integration - Google Patents
A kind of calcium carbide furnace system of hydrogen and oxygen mixed injection and heat integration Download PDFInfo
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- CN207121427U CN207121427U CN201720607416.9U CN201720607416U CN207121427U CN 207121427 U CN207121427 U CN 207121427U CN 201720607416 U CN201720607416 U CN 201720607416U CN 207121427 U CN207121427 U CN 207121427U
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Abstract
The utility model belongs to coal chemical technology, more particularly to the calcium carbide furnace system of a kind of hydrogen and oxygen mixed injection and heat integration, including:Solid mixer, pulverized coal pyrolysis stove, cyclone dust collectors, oil gas condensation device, pyrolysis air purifying apparatus, gas mixer, electric arc furnaces, oxygen tank and hydrogen gas tank.Thus, the calcium carbide furnace system carries out calcium carbide production using electric arc furnaces, using hydrogen and oxygen burn caused by heat substitute part electric energy, solves the problems, such as the high power consumption of calcium carbide production;Pulverized coal pyrolysis in the pulverized coal pyrolysis stove is that the part of waste heat that flue gas is produced by absorbing is used as thermal source, and the upgrading for solving the problems, such as low-order coal utilizes, and reduces production cost;It is pyrolyzed by using pulverized coal pyrolysis stove, the hydrogen content in calcium carbide stove exhaust can be improved, available for various industrial chemicals, wherein, hydrogen can carry out extraction production as byproduct caused by pulverized coal pyrolysis stove, recycle.
Description
Technical field
The utility model belongs to coal chemical technology, more particularly to a kind of production technology on calcium carbide.
Background technology
Calcium carbide is commonly called as calcium carbide, is reacted and is made by coke and calcium oxide, is that important coalification chemical product and basic chemical industry are former
Material, mainly for the production of acetylene and ethynylation chemical product.The acetylene gas for producing to obtain can be used for preparing a variety of chemistry productions
Product, including the series of products such as vinyl chloride serial, vinyl acetate series and acrylic.Therefore, calcium carbide is sent out Chinese national economy
Exhibition is had a very important role, and calcium carbide yield is continuously increased nearly ten years.
Although the existing history for many years of development of calcium carbide industry, in the calcium carbide production technology of routine, also mainly adopt
With the method for electric arc heated.In the prior art, the technique of conventional electric arc heated production calcium carbide is mainly by using electric arc furnaces
Electric energy next life produces electricity stone, and its specific production process is:Added mixture into by the entrance or pipeline of electric furnace upper end in electric furnace,
2200 DEG C or so are heated in open or closed electric furnace, the calcium carbide melted, by the calcium carbide of fusing through cooling down broken place
Packed after reason as finished product;Wherein, CO gas is generated in course of reaction, the gas is then according to different types of electricity
Stone stove discharges the furnace of calcium carbide in a different manner.But the above-mentioned technology for producing electricity stone using conventional electric arc heated method next life is present
Following technical problem:The technique of electric arc heated production calcium carbide consumes a large amount of electric energy, can not directly utilize the heat of coal dust firing
Energy;Also, required reaction temperature is high, and energy expenditure is big, high is required to refractory material;Existing electric arc heated produces calcium carbide skill
Art can not utilize powder, cause the waste of powder, cause the increase of production cost indirectly;Existing electric arc heated produces calcium carbide
Caused high-temperature flue gas is fewer due to measuring in technology, and the heat that the high-temperature flue gas contains is difficult to reclaim.In the prior art, use
The method of oxygen hot method production calcium carbide is:By block calcic raw material and carbon raw material after epimere shaft furnace is preheated to 800~1300 DEG C
Into in hypomere electric arc furnaces, 1700~2200 are risen to the compound heat supply temperature of electrode by oxygen and breeze blowing in electric arc furnaces
DEG C, reaction generation high-grade calcium carbide, electrical power generators are driven by gas turbine combustion after caused calcium carbide furnace gas removing dust purification,
Waste gas sensible heat is reclaimed by waste heat boiler.But the major defect of the hot method of oxygen is that do not solve block material reaction to deposit in the prior art
Technical problem, because block stock specific surface area is small so that the hot method of the oxygen still needs under higher temperature conditionss
Reaction can be completed, thus, causes system production high energy consumption;Moreover, the raw materials for production of the hot method of oxygen remain as price in the prior art
Compare high block coke and lime stone, do not effectively reduce cost of material;High-temperature flue gas caused by the production system is only
Go to preheat raw material and generating using the high-temperature gas, do not utilize the properties such as the reproducibility of the high-temperature gas, thus, the high temperature
Utilization ratio after gas recovery needs further to be improved.According to current research, the hot method low cost production electricity of oxygen is directly realized by
Stone technique difficulty is larger.Therefore, how to design it is a kind of can by the use of powder raw material as raw materials for production, make full use of product
Heat, reaction temperature, the calcium carbide production technology of low cost are reduced, turn into the technical barrier for being badly in need of solving at present.
Utility model content
For above-mentioned problem present in prior art, the utility model provides a kind of hydrogen-blowing oxygen and heat energy
The calcium carbide furnace system of comprehensive utilization, the calcium carbide furnace system carries out calcium carbide production using electric arc furnaces, with traditional calcium carbide production technology
In provided all of electric energy heat mode of heating it is different, the electric arc furnaces utilizes heat caused by hydrogen-oxygen combustion to substitute
Part electric energy, solve the problems, such as that calcium carbide produces high power consumption;Pulverized coal pyrolysis in the pulverized coal pyrolysis stove is to produce cigarette by absorbing
As thermal source, the upgrading for solving the problems, such as low-order coal utilizes the part of waste heat of gas, reduces production cost;By using fine coal
Pyrolysis oven is pyrolyzed, and can improve the hydrogen content in calcium carbide stove exhaust, available for various industrial chemicals, wherein, hydrogen can
Extraction production is carried out as byproduct caused by pulverized coal pyrolysis stove, is recycled.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
The utility model provides a kind of calcium carbide furnace system of blowing oxygen and heat integration, it is characterised in that bag
Include solid mixer, pulverized coal pyrolysis stove, cyclone dust collectors, oil gas condensation device, pyrolysis air purifying apparatus, gas mixer, electricity
Arc stove, oxygen tank and hydrogen gas tank, wherein:The solid mixer, for feed coal and lime stone to be well mixed;The fine coal
Pyrolysis oven, it is connected with the solid mixer, for the well mixed feed coal and the lime stone to be carried out at pyrolysis
Reason;The inlet end of the cyclone dust collectors is connected with the pyrolysis gas outlet of the pulverized coal pyrolysis stove, and outlet side and the oil gas are cold
Solidifying device connection;The oil gas condensation device is connected with the cyclone dust collectors, for will in the pulverized coal pyrolysis stove caused by
Pyrolysis gas carries out condensation process;The pyrolysis air purifying apparatus is connected with the oil gas condensation device, for the oil gas is cold
The gas discharged in solidifying device carries out purified treatment;The entrance of the gas mixer respectively with it is described pyrolysis air purifying apparatus and
The offgas outlet connection of the electric arc furnaces, the outlet of the gas mixer connect with the pyrolysis gas entrance of the pulverized coal pyrolysis stove
Connect, be the powder for the gas of the pyrolysis air purifying apparatus discharge to be mixed with flue gas caused by the electric arc furnaces
The pyrolytic reaction of coal heat decomposition stove provides thermal source;The electric arc furnaces is provided with charging aperture using the hot method next life electricity production stone of oxygen, its side wall
And air inlet, the charging aperture are connected with the coke export of the pulverized coal pyrolysis stove, the air inlet respectively with the oxygen tank
Connected with hydrogen gas tank.
Inventor has found that the utility model provides a kind of furnace of calcium carbide system of hydrogen-blowing oxygen and heat integration
System, the calcium carbide furnace system using electric arc furnaces provide all of electric energy in calcium carbide production, with traditional calcium carbide production technology
The mode of heating of heat is different, and the electric arc furnaces utilizes heat caused by hydrogen-oxygen combustion to substitute part electric energy, solves calcium carbide
The problem of producing high power consumption;Pulverized coal pyrolysis in the pulverized coal pyrolysis stove is that the part of waste heat that flue gas is produced by absorbing is used as heat
Source, the upgrading for solving the problems, such as low-order coal utilize, and reduce production cost;It is pyrolyzed by using pulverized coal pyrolysis stove, can
The hydrogen content in calcium carbide stove exhaust is improved, available for various industrial chemicals, wherein, hydrogen can be used as pulverized coal pyrolysis stove to produce
Byproduct carry out extraction production, recycle;Reaction interval in furnace of calcium carbide is expanded, the utilization rate of stove furnace of calcium carbide is improved, carries
High yield;Using pyrogenic steam caused by pyrolysis in pulverized coal pyrolysis stove oil, the combustible gas of high-quality are obtained by condensation, purification
Product, waste recovery is realized, produce new benefit, reduce cost indirectly.
According to specific embodiment of the utility model, in addition to multiple hydrogen-oxygen rifles, each hydrogen-oxygen rifle includes:Muzzle, hydrogen
Entrance and oxygen intake, the muzzle are connected with the air inlet of the electric arc furnace sidewall, the hydrogen inlet and the hydrogen gas tank
Connection, the oxygen intake are connected with the oxygen tank, and hydrogen and oxygen are uniformly sprayed into electricity by the multiple hydrogen-oxygen rifle from surrounding
In arc stove, oxygen and hydrogen is burnt in the electric arc furnaces, heat is provided for reaction.
According to specific embodiment of the utility model, the lance head of the hydrogen-oxygen rifle is the inclined hole knot that angle is assembled to center
Structure, for strengthening the mixing between oxygen and hydrogen.
According to specific embodiment of the utility model, the pulverized coal pyrolysis stove is that fluid bed or down-flow fluidized bed using ECT fast pyrogenation react
Device;The pyrolysis gas cleaning system includes desulfurization unit, deamination unit, de- benzene unit, de- naphthalene unit.
According to specific embodiment of the utility model, in addition to calcium carbide holding vessel, it is connected with the discharging opening of the electric arc furnaces.
What the utility model obtained has the beneficial effect that:
(1) the utility model provides a kind of calcium carbide furnace system of hydrogen-blowing oxygen and heat integration, the calcium carbide
Furnace system using electric arc furnaces provide the heating of heat all of electric energy in calcium carbide production, with traditional calcium carbide production technology
Mode is different, and the electric arc furnaces utilizes heat caused by hydrogen-oxygen combustion to substitute part electric energy, solves calcium carbide and produces high power consumption
The problem of.
(2) the utility model provides a kind of calcium carbide furnace system of hydrogen-blowing oxygen and heat integration, the calcium carbide
Pulverized coal pyrolysis in furnace system is the pyrolysis thermal source for being used as pulverized coal pyrolysis stove by absorbing the part of waste heat of generation flue gas, is solved
The problem of upgrading of low-order coal utilizes, reduces production cost;Meanwhile pulverized coal pyrolysis is carried out by using pulverized coal pyrolysis stove, can
The hydrogen content in calcium carbide stove exhaust is improved, available for various industrial chemicals, wherein, hydrogen can be used as pulverized coal pyrolysis stove to produce
Byproduct carry out extraction production, recycle.
(3) the utility model provides a kind of calcium carbide furnace system of hydrogen-blowing oxygen and heat integration, the calcium carbide
Furnace system expands reaction interval in furnace of calcium carbide, improves the utilization rate of stove furnace of calcium carbide, improves yield.
(4) the utility model provides a kind of calcium carbide furnace system of hydrogen-blowing oxygen and heat integration, the calcium carbide
Furnace system can utilize pulverized coal pyrolysis stove in pyrolysis caused by pyrogenic steam be obtained after condensing, purifying high-quality oil, can
Fuel gas product, waste recovery is realized, produce new benefit, reduce cost indirectly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1, pulverized coal pyrolysis stove, 2, cyclone dust collectors, 3, oil gas condensation device, 4, pyrolysis gas cleaning system, 5, electric arc
Stove, 6, solid mixer, 7, hydrogen gas tank, 8, oxygen tank, 9, gas mixer.
Embodiment
Embodiment of the present utility model is described below in detail.The embodiments described below is exemplary, is only used for explaining
The utility model, and it is not intended that to limitation of the present utility model.Unreceipted particular technique or condition in embodiment, according to
Technology or condition described by document in the art are carried out according to product description.Agents useful for same or the unreceipted life of instrument
Manufacturer person is produced, being can be by the conventional products of acquisition purchased in market.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
One or more this feature can be expressed or be implicitly included to the feature of " first ", " second ".Of the present utility model
In description, " multiple " are meant that two or more, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be
Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
According to one side of the present utility model, the utility model provides a kind of hydrogen-blowing oxygen and integrated with heat energy
The calcium carbide furnace system utilized, it is characterised in that including solid mixer 6, pulverized coal pyrolysis stove 1, cyclone dust collectors 2, oil gas condensation
Device 3, pyrolysis air purifying apparatus 4, gas mixer 9, electric arc furnaces 5, oxygen tank 8 and hydrogen gas tank 7, wherein:The solid mixing
Device, for feed coal and lime stone to be well mixed;The pulverized coal pyrolysis stove, is connected with the solid mixer, for that will mix
Close the uniform feed coal and the lime stone carries out pyrolysis processing;The inlet end of the cyclone dust collectors and fine coal heat
The pyrolysis gas outlet connection of stove is solved, outlet side is connected with the oil gas condensation device;The oil gas condensation device and the whirlwind
Deduster connects, for caused pyrolysis gas in the pulverized coal pyrolysis stove to be carried out into condensation process;The pyrolysis air purifying apparatus
It is connected with the oil gas condensation device, the gas for will be discharged in the oil gas condensation device carries out purified treatment;The gas
Offgas outlet of the entrance of body blender respectively with the pyrolysis air purifying apparatus and the electric arc furnaces is connected, the gas mixing
The outlet of device is connected with the pyrolysis gas entrance of the pulverized coal pyrolysis stove, for by it is described pyrolysis air purifying apparatus discharge gas with
Flue gas caused by the electric arc furnaces is mixed, and the pyrolytic reaction for the pulverized coal pyrolysis stove provides thermal source;The electric arc furnaces is adopted
With the hot method next life electricity production stone of oxygen, its side wall is provided with charging aperture and air inlet, Jiao of the charging aperture and the pulverized coal pyrolysis stove
Charcoal outlet connection, the air inlet are connected with the oxygen tank and hydrogen gas tank respectively.
Inventor has found that the utility model provides a kind of furnace of calcium carbide system of hydrogen-blowing oxygen and heat integration
System, the calcium carbide furnace system using electric arc furnaces provide all of electric energy in calcium carbide production, with traditional calcium carbide production technology
The mode of heating of heat is different, and the electric arc furnaces utilizes heat caused by hydrogen-oxygen combustion to substitute part electric energy, solves calcium carbide
The problem of producing high power consumption;Pulverized coal pyrolysis in the pulverized coal pyrolysis stove is that the part of waste heat that flue gas is produced by absorbing is used as heat
Source, the upgrading for solving the problems, such as low-order coal utilize, and reduce production cost;It is pyrolyzed by using pulverized coal pyrolysis stove, can
The hydrogen content in calcium carbide stove exhaust is improved, available for various industrial chemicals, wherein, hydrogen can be used as pulverized coal pyrolysis stove to produce
Byproduct carry out extraction production, recycle;Reaction interval in furnace of calcium carbide is expanded, the utilization rate of stove furnace of calcium carbide is improved, carries
High yield;Using pyrogenic steam caused by pyrolysis in pulverized coal pyrolysis stove oil, the combustible gas of high-quality are obtained by condensation, purification
Product, waste recovery is realized, produce new benefit, reduce cost indirectly.
The calcium carbide furnace system of blowing oxygen and heat integration provided by the utility model, including solid mixer, powder
Coal heat decomposition stove and electric arc furnaces, the solid mixer, for feed coal and lime stone to be well mixed;The pulverized coal pyrolysis stove with
The solid mixer connection, for the well mixed feed coal and the lime stone to be carried out into pyrolysis processing;Further
, using the solid mixture of the feed coal and the lime stone as raw material, in the pulverized coal pyrolysis furnace interior by adding
Heat carries out pyrolytic reaction, and pyrolysis temperature obtains upgraded coal and lime stone and pyrolysis at 850 DEG C -1100 DEG C after pyrolysis processing
Gas;The electric arc furnaces is connected with the pulverized coal pyrolysis stove, for by the solid product after the pulverized coal pyrolysis stove pyrolysis processing
(i.e. upgraded coal and lime stone) is discharged into the electric arc furnaces, and calcium carbide is produced using the hot method of oxygen.
According to specific embodiment of the utility model, the electric arc furnaces, for will be through the pulverized coal pyrolysis stove pyrolysis processing
Solid product (i.e. upgraded coal and lime stone) afterwards is used as raw material, and stone is produced electricity using oxygen hot method next life.Further, in the electricity
In arc stove, using solid mixer and pulverized coal pyrolysis stove as feedstock pre-processing system, the solid of upgraded coal and lime stone is obtained
Mixture is as raw material, and using hydrogen gas tank and oxygen tank as thermal source feed system, being burnt by oxygen and hydrogen in stove is
Reaction provides heat, produces electricity stone using oxygen hot method next life, obtains calcium carbide and high-temperature flue gas.The side wall of the electric arc furnaces be provided with into
Material mouth, air inlet, offgas outlet and discharging opening, the charging aperture are connected with the coke export of the pulverized coal pyrolysis stove, for inciting somebody to action
Solid product (i.e. upgraded coal and lime stone) in the pulverized coal pyrolysis stove after pyrolysis processing is discharged into the electric arc furnaces, should
Solid product prepares calcium carbide in the electric arc furnaces as raw material using the hot method of oxygen;The air inlet respectively with the hydrogen gas tank and
The oxygen tank connection, is burnt by oxygen and hydrogen in the electric arc furnaces, and it is anti-that chemistry is carried out between upgraded coal and lime stone
Heat should be provided;The offgas outlet is connected with the entrance of the gas mixer, for by high temperature caused by the electric arc furnaces
Fume emission is into the gas mixer;The discharging opening is connected with calcium carbide holding vessel, for caused calcium carbide to be discharged into
It is collected, stores in the calcium carbide holding vessel.
According to specific embodiment of the utility model, calcium carbide furnace system provided by the utility model also includes hydrogen-oxygen rifle, institute
Oxygen tank and the hydrogen gas tank are stated, the hydrogen gas tank is connected with the hydrogen-oxygen rifle, for the oxygen in the oxygen tank to be sprayed into
In the hydrogen-oxygen rifle;The hydrogen gas tank connects with the hydrogen-oxygen rifle, for the hydrogen in the hydrogen gas tank to be sprayed into the hydrogen-oxygen
In rifle;The hydrogen-oxygen rifle is connected with the electric arc furnaces, for by the oxygen from the oxygen tank and from the hydrogen gas tank
Hydrogen is sprayed into electric arc furnaces simultaneously, oxygen and hydrogen is burnt in the electric arc furnaces, and heat is provided for reaction as thermal source.Institute
The quantity for stating hydrogen-oxygen rifle is not particularly limited, as long as oxygen and hydrogen can be made, which to be burnt in the electric arc furnaces, produces enough heat
Measure the heat source for reaction as production calcium carbide;Further, the quantity of the hydrogen-oxygen rifle is multiple, according in the stove of electric arc furnaces
The particular number of the big minor adjustment hydrogen-oxygen rifle of capacity, the hydrogen-oxygen rifle are evenly distributed on the surrounding of the electric arc furnace sidewall, so as to
Hydrogen and oxygen are uniformly sprayed into electric arc furnaces from surrounding in multiple hydrogen-oxygen rifles so that hydrogen-oxygen rifle is carried out in electric arc furnaces peripheral regions
Burning, promotes the reaction of surrounding.Each hydrogen-oxygen rifle includes:Muzzle, hydrogen inlet and oxygen intake, the muzzle and the electric arc
The air inlet connection of furnace sidewall, the hydrogen inlet are connected with the hydrogen gas tank, and the oxygen intake is connected with the oxygen tank,
The multiple hydrogen-oxygen rifle uniformly sprays into hydrogen and oxygen in electric arc furnaces from surrounding, makes oxygen and hydrogen in the electric arc furnaces internal combustion
Burn, heat is provided for reaction, because hydrogen and oxygen reaction generate water vapour, therefore, do not interfere with calcium carbide in electric arc furnaces
Quality and composition.Further, the lance head of the hydrogen-oxygen rifle could be arranged to the oblique hole structure that angle is assembled to center, work as oxygen
After gas and hydrogen are sprayed by the interior muzzle for being set to inclined hole distribution, occur to spray the mutual impact and collision between air-flow, be advantageous to
Strengthen the mixing between oxygen and hydrogen so that burning is more abundant, there is provided more heats, the consumption of electric energy is reduced, also, also
Reaction interval is expanded, effectively increases capacity utilization, the yield of calcium carbide can be increased considerably.Preferably, the hydrogen
Hydrogen inlet in oxygen rifle can also be connected with the pyrolysis air purifying apparatus, for by pyrolysis gas via being pyrolyzed air purifying apparatus
Hydrogen is obtained after progress purified treatment to be sent into obtain hydrogen-oxygen rifle, is provided hydrogen fuel for the burning of electric arc furnaces, is realized pyrolysis cigarette
The effective recycling of gas, the active ingredient in pyrolysis smoke is rationally utilized, reduces production cost.
According to specific embodiment of the utility model, the structure type of the pulverized coal pyrolysis stove is not particularly limited, as long as
It can be used in the solid mixture of the feed coal and the lime stone carrying out pyrolysis processing.Further, the powder
Coal heat decomposition stove can be fluid bed or down-flow fluidized bed using ECT fast pyrolysis reactor, can be by big in stove after being passed through in order to hot gas
Grain solid, which is blown afloat, to be come so that bulky grain solid is suspended among the fluid of motion, can more fully carry out pyrolytic reaction.According to
Some specific embodiments of the utility model, the pulverized coal pyrolysis stove include charging aperture, coke export, pyrolysis gas outlet and pyrolysis
Gas entrance, the charging aperture of the pulverized coal pyrolysis stove are connected with the discharging opening of the solid mixer, for the institute that will be well mixed
State feed coal and the lime stone carries out pyrolysis processing;Further, the feed coal and the lime stone are as raw material, in institute
State pulverized coal pyrolysis furnace interior and carry out pyrolytic reaction by heating, pyrolysis temperature obtains at 850 DEG C -1100 DEG C after pyrolysis processing
Upgraded coal and lime stone and pyrolysis smoke;The coke export is connected with the electric arc furnaces, for by the pulverized coal pyrolysis stove
The solid mixture of upgraded coal caused by inside and lime stone emits, and is added in the electric arc furnaces, the solid mixing
Thing is used as the raw material of production calcium carbide;The pyrolysis gas outlet is connected with the cyclone dust collectors, for by the pulverized coal pyrolysis stove
Pyrolysis smoke gives off caused by inside, enters and purified treatment is carried out in the cyclone dust collectors;The pyrolysis gas entrance with
The outlet connection of gas mixer, high-temperature gas, the high temperature are provided by the gas mixer for the pulverized coal pyrolysis stove
Gas is used as the thermal source that the pulverized coal pyrolysis furnace interior carries out pyrolysis processing.The charging aperture and coke export of the pulverized coal pyrolysis stove
Set location be not particularly limited, as long as successfully the material can be inputted and be discharged in the pulverized coal pyrolysis stove i.e.
Can;Preferably, the charging aperture of the pulverized coal pyrolysis stove is arranged at the top of furnace wall, and coke export is arranged on the bottom of furnace wall, so as to
The Gravitational sliding of its own can be utilized in the material, adds residence time of the material in stove so that pyrolysis is anti-
It should carry out more abundant.
According to specific embodiment of the utility model, the type of the solid mixer is not particularly limited, as long as can
The feed coal and the lime stone are thoroughly mixed to uniformly.Preferably, the solid mixer can be
Mixer, can be by being sufficiently stirred the feed coal and the lime stone, and guarantee is well mixed between the two.
The calcium carbide furnace system of blowing oxygen and heat integration provided by the utility model, including cyclone dust collectors, oil
Gas condensing unit, the pyrolysis gentle body blender of air purifying apparatus so that caused pyrolysis gas is via rotation in the pulverized coal pyrolysis stove
Wind deduster, oil gas condensation device, pyrolysis air purifying apparatus are separated successively, purified treatment, are obtained coai-tar product and are done
Net hot gas, the coai-tar product are used to store, and the clean hot gas, which is passed into the gas mixer, to be used for
With the electric arc furnaces caused by flue gas mixed, the pyrolytic reaction for the pulverized coal pyrolysis stove provides thermal source.Preferably, it is described
Pyrolysis air purifying apparatus hydrogen outlet can also be connected with the hydrogen inlet in the hydrogen-oxygen rifle, for by pyrolysis gas via heat
The hydrogen that solution air purifying apparatus obtained after purified treatment is sent into hydrogen-oxygen rifle, and hydrogen fuel is provided for the burning of electric arc furnaces, real
The effective recycling of pyrolysis smoke is showed, has rationally utilized the active ingredient in pyrolysis smoke, reduce production cost.
According to specific embodiment of the utility model, the heat of the inlet end of the cyclone dust collectors and the pulverized coal pyrolysis stove
Vent one's spleen and export connection, for the pyrolysis gas to be carried out into dust removal process, remove the SS contained in the pyrolysis gas,
Obtain high-temperature gas;The outlet side of the cyclone dust collectors is connected with the oil gas condensation device, for by above-mentioned removing dust
High-temperature gas after reason is passed into the oil gas condensation device and carries out Oil-gas Separation, using the method for condensation process, obtains Jiao
Oil product and cleaner gas;The pyrolysis air purifying apparatus is connected with the oil gas condensation device, for by the oil gas
The relatively clean gas discharged in condensing unit carries out purified treatment, obtains clean gas.Further, the pyrolysis gas purification
Device includes the different unit modules such as desulfurization unit, deamination unit, de- benzene unit, de- naphthalene unit, respectively that the oil gas is cold
The relatively clean gas discharged in solidifying device carries out the corresponding purified treatments such as desulfurization, deamination, de- benzene, de- naphthalene, has obtained totally
Gas.
According to specific embodiment of the utility model, the entrance of the gas mixer purifies with the pyrolysis gas respectively to be filled
Put and connected with the offgas outlet of the electric arc furnaces, the outlet of the gas mixer and the pyrolysis gas entrance of the pulverized coal pyrolysis stove
Connection, it is described for the gas of the pyrolysis air purifying apparatus discharge to be mixed with flue gas caused by the electric arc furnaces
The pyrolytic reaction of pulverized coal pyrolysis stove provides thermal source.By controlling the intake of two kinds of different gas of said temperature, the gas
Blender can be mixed to above two gas and adjust temperature, obtain at least 100 DEG C lower than the ash fusion point ST temperature of coal
Mixed gas.Thus, have that gas flow is big, high (flue gas exit temperature is up to 1200 for temperature using flue gas caused by electric arc furnaces
DEG C -1300 DEG C) and flue gas in CO and the characteristics of high vapour content, by caused by pyrolysis in the flue gas and pulverized coal pyrolysis stove
As the coal pyrolysis thermal source in pulverized coal pyrolysis stove after pyrogenic steam mixing, the part of waste heat for realizing flue gas and pyrogenic steam is filled
Divide and recycle, the upgrading for solving the problems, such as low-order coal utilizes, and reduces production cost.
The cyclic process that heat energy provided by the utility model recycles is as follows:Feed coal and stone in the pulverized coal pyrolysis stove
Lime stone passes through pyrolysis processing, and the pyrolysis temperature in stove is 850 DEG C -1100 DEG C, generates high temperature pyrolysis gas, the high temperature pyrolysis gas
The pulverized coal pyrolysis stove is discharged from pyrolysis gas outlet, carries out dust removal process via cyclone dust collectors successively, oil gas condensation device enters
Row condensation process, pyrolysis air purifying apparatus carry out purified treatment, obtain the clean gas of low temperature, the clean gas enters described
In gas mixer;Meanwhile the upgraded coal in the electric arc furnaces and lime stone produce calcium carbide by the hot method of oxygen, also create
High-temperature flue gas, the high-temperature flue gas are discharged via the offgas outlet of the electric arc furnaces, and temperature is 1200 DEG C -1300 DEG C, enters institute
State in gas mixer.Due to the gas mixer entrance respectively with the pyrolysis air purifying apparatus and the electric arc furnaces
Offgas outlet connects so that the clean gas of the pyrolysis air purifying apparatus discharge is entered with high-temperature flue gas caused by the electric arc furnaces
Enter into the gas mixer to be mixed and adjusted temperature, two kinds of different gases of temperature are via the gas mixer
Mixed gas is obtained after mixing, the temperature of the mixed gas is lower than the ash fusion point ST temperature of coal at least 100 DEG C.The gas mixes
The outlet of clutch is connected with the pyrolysis gas entrance of the pulverized coal pyrolysis stove, and the mixed gas is passed into the pulverized coal pyrolysis stove
In, the pyrolytic reaction for the pulverized coal pyrolysis stove provides thermal source.
Inventor has found that the utility model provides a kind of furnace of calcium carbide system of hydrogen-blowing oxygen and heat integration
System, the calcium carbide furnace system using electric arc furnaces provide all of electric energy in calcium carbide production, with traditional calcium carbide production technology
The mode of heating of heat is different, and the electric arc furnaces utilizes heat caused by hydrogen-oxygen combustion to substitute part electric energy, solves calcium carbide
The problem of producing high power consumption;Pulverized coal pyrolysis in the pulverized coal pyrolysis stove is that the part of waste heat that flue gas is produced by absorbing is used as heat
Source, the upgrading for solving the problems, such as low-order coal utilize, and reduce production cost;It is pyrolyzed by using pulverized coal pyrolysis stove, can
The hydrogen content in calcium carbide stove exhaust is improved, available for various industrial chemicals, wherein, hydrogen can be used as pulverized coal pyrolysis stove to produce
Byproduct carry out extraction production, recycle;Reaction interval in furnace of calcium carbide is expanded, the utilization rate of stove furnace of calcium carbide is improved, carries
High yield;Using pyrogenic steam caused by pyrolysis in pulverized coal pyrolysis stove oil, the combustible gas of high-quality are obtained by condensation, purification
Product, waste recovery is realized, produce new benefit, reduce cost indirectly.
According to one side of the present utility model, the utility model additionally provides one kind and utilizes the blowing oxygen and heat energy
The production technology of the calcium carbide furnace system of comprehensive utilization, it is characterised in that comprise the following steps:
(1) feed coal and lime stone are added in solid mixer, carry out mixed processing.
According to specific embodiment of the utility model, the solid mixer, for by the feed coal and the lime
Stone is uniformly mixed.The particle diameter and mixed proportion of the feed coal and the lime stone are not particularly limited, as long as can be
Pyrolytic reaction is carried out after well mixed.The feed coal particle diameter is 0.5-5mm, limestone particle size 0.5-5mm, is advantageous to
The contact mixing in millimeter rank is carried out between the feed coal and the lime stone;The feed coal is carried out with the lime stone
The mixed proportion of mixing is that feed coal/lime stone is 1.05-1.2 so that the feed coal is with the lime stone via the powder
Coal heat decomposition stove carries out pyrolysis processing, can obtain upgraded coal and lime stone that mixed proportion is more beneficial for producing calcium carbide.
(2) raw material after blended processing is sent into pulverized coal pyrolysis stove, carries out pyrolysis processing, obtain pyrolysis gas, upgraded coal and
Lime stone.
According to specific embodiment of the utility model, the pulverized coal pyrolysis stove, it is connected with the solid mixer, for inciting somebody to action
The solid mixture of the feed coal and the lime stone carries out pyrolysis processing.Further, the feed coal and described
Lime stone carries out pyrolytic reaction, with the mixing in gas mixer in the pulverized coal pyrolysis furnace interior as raw material by heating
For gas as thermal source, pyrolysis temperature obtains upgraded coal and lime stone and pyrolysis at 850 DEG C -1100 DEG C after pyrolysis processing
Gas.Further, the pulverized coal pyrolysis stove can be fluid bed or down-flow fluidized bed using ECT fast pyrolysis reactor, in order to which hot gas is passed through
The bulky grain solid in stove can be blown afloat and afterwards so that bulky grain solid is suspended among the fluid of motion, can be more abundant
Carry out pyrolytic reaction.
According to specific embodiment of the utility model, the pulverized coal pyrolysis stove includes charging aperture, coke export, pyrolysis gas and gone out
Mouth and pyrolysis gas entrance, the charging aperture of the pulverized coal pyrolysis stove are connected with the discharging opening of the solid mixer, for that will mix
The uniform feed coal and the lime stone carry out pyrolysis processing;The coke export is connected with the electric arc furnaces, for inciting somebody to action
The solid mixture of upgraded coal and lime stone caused by the pulverized coal pyrolysis furnace interior emits, and is added to the electric arc furnaces
Interior, the solid mixture is used as the raw material of production calcium carbide;The pyrolysis gas outlet is connected with the cyclone dust collectors, for inciting somebody to action
Pyrolysis smoke caused by the pulverized coal pyrolysis furnace interior is discharged into cyclone dust collectors;The pyrolysis gas entrance and gas mixer
Outlet connection, provides high-temperature gas, the high-temperature gas is used as the fine coal by gas mixer for the pulverized coal pyrolysis stove
The thermal source of pyrolysis processing is carried out inside pyrolysis oven.Preferably, the charging aperture of the pulverized coal pyrolysis stove is arranged at the top of furnace wall, coke
Outlet is arranged on the bottom of furnace wall, in order to which the material can utilize the Gravitational sliding of its own, adds the material and exists
Residence time in stove so that pyrolytic reaction carries out more abundant.
(3) upgraded coal that pyrolysis obtains is sent into electric arc furnaces as raw material with lime stone, meanwhile, come from oxygen tank using spraying into
Oxygen and the thermal source that is burnt in the electric arc furnaces as reaction of hydrogen from hydrogen gas tank, using the hot method of oxygen, obtain calcium carbide
And flue gas.
According to specific embodiment of the utility model, the electric arc furnaces, for will be through the pulverized coal pyrolysis stove pyrolysis processing
Solid product (i.e. upgraded coal and lime stone) afterwards is used as raw material, and stone is produced electricity using oxygen hot method next life.Further, in the electricity
In arc stove, using solid mixer and pulverized coal pyrolysis stove as feedstock pre-processing system, the solid of upgraded coal and lime stone is obtained
Mixture is as raw material, and using hydrogen gas tank and oxygen tank as thermal source feed system, being burnt by oxygen and hydrogen in stove is
Reaction provides heat, produces electricity stone using oxygen hot method next life, obtains calcium carbide and high-temperature flue gas.The side wall of the electric arc furnaces be provided with into
Material mouth, air inlet, offgas outlet and discharging opening, the charging aperture are connected with the coke export of the pulverized coal pyrolysis stove, for inciting somebody to action
Solid product (i.e. upgraded coal and lime stone) in the pulverized coal pyrolysis stove after pyrolysis processing is discharged into the electric arc furnaces, should
Solid product prepares calcium carbide in the electric arc furnaces as raw material using the hot method of oxygen;The air inlet respectively with the hydrogen gas tank and
The oxygen tank connection, is burnt by oxygen and hydrogen in the electric arc furnaces, and it is anti-that chemistry is carried out between upgraded coal and lime stone
Heat should be provided;The offgas outlet is connected with the entrance of the gas mixer, for by high temperature caused by the electric arc furnaces
Fume emission is into the gas mixer;The discharging opening is connected with calcium carbide holding vessel, for caused calcium carbide to be discharged into
It is collected, stores in the calcium carbide holding vessel.
According to specific embodiment of the utility model, calcium carbide furnace system provided by the utility model also includes hydrogen-oxygen rifle, institute
Oxygen tank and the hydrogen gas tank are stated, the hydrogen gas tank is connected with the hydrogen-oxygen rifle, for the oxygen in the oxygen tank to be sprayed into
In the hydrogen-oxygen rifle;The hydrogen gas tank connects with the hydrogen-oxygen rifle, for the hydrogen in the hydrogen gas tank to be sprayed into the hydrogen-oxygen
In rifle;The hydrogen-oxygen rifle is connected with the electric arc furnaces, for by the oxygen from the oxygen tank and from the hydrogen gas tank
Hydrogen is sprayed into electric arc furnaces simultaneously, oxygen and hydrogen is burnt in the electric arc furnaces, and heat is provided for reaction as thermal source.Institute
The quantity of hydrogen-oxygen rifle is stated to be multiple, is evenly distributed on the surrounding of the electric arc furnace sidewall, in order to multiple hydrogen-oxygen rifles by hydrogen and
Oxygen is uniformly sprayed into electric arc furnaces from surrounding so that hydrogen-oxygen rifle is burnt in electric arc furnaces peripheral regions, promotes the reaction of surrounding.
Each hydrogen-oxygen rifle includes:Muzzle, hydrogen inlet and oxygen intake, the muzzle are connected with the air inlet of the electric arc furnace sidewall,
The hydrogen inlet is connected with the hydrogen gas tank, and the oxygen intake is connected with the oxygen tank, and the multiple hydrogen-oxygen rifle is by hydrogen
Gas and oxygen are uniformly sprayed into electric arc furnaces from surrounding, oxygen and hydrogen is burnt in the electric arc furnaces, and heat is provided for reaction.
Further, the lance head of the hydrogen-oxygen rifle could be arranged to the oblique hole structure that angle is assembled to center, when oxygen and hydrogen lead to
Cross it is interior be set to inclined hole distribution muzzle spray after, occur spray air-flow between mutual impact and collision, be advantageous to strengthen oxygen and
Mixing between hydrogen so that burning is more abundant, there is provided more heats.
(4) pyrolysis gas obtained in step (2) is handled what is obtained via oil gas condensation device, pyrolysis air purifying apparatus
Net pyrolysis gas enters with the flue gas obtained in step (3) carries out temperature adjustment processing in gas mixer, then by after temperature adjustment
Mixed gas be sent in the pulverized coal pyrolysis stove as pyrolysis thermal source, in stove raw material carry out pyrolysis processing.
According to specific embodiment of the utility model, the entrance of the gas mixer purifies with the pyrolysis gas respectively to be filled
Put and connected with the offgas outlet of the electric arc furnaces, the outlet of the gas mixer and the pyrolysis gas entrance of the pulverized coal pyrolysis stove
Connection, it is described for the gas of the pyrolysis air purifying apparatus discharge to be mixed with flue gas caused by the electric arc furnaces
The pyrolytic reaction of pulverized coal pyrolysis stove provides thermal source.By controlling the intake of two kinds of different gas of said temperature, the gas
Blender can be mixed to above two gas and adjust temperature, obtain at least 100 DEG C lower than the ash fusion point ST temperature of coal
Mixed gas.Thus, have that gas flow is big, high (flue gas exit temperature is up to 1200 for temperature using flue gas caused by electric arc furnaces
DEG C -1300 DEG C) and flue gas in CO and the characteristics of high vapour content, by caused by pyrolysis in the flue gas and pulverized coal pyrolysis stove
As the coal pyrolysis thermal source in pulverized coal pyrolysis stove after pyrogenic steam mixing, the part of waste heat for realizing flue gas and pyrogenic steam is filled
Divide and recycle, the upgrading for solving the problems, such as low-order coal utilizes, and reduces production cost.
The cyclic process that heat energy provided by the utility model recycles is as follows:Feed coal and stone in the pulverized coal pyrolysis stove
Lime stone passes through pyrolysis processing, and the pyrolysis temperature in stove is 850 DEG C -1100 DEG C, generates high temperature pyrolysis gas, the high temperature pyrolysis gas
The pulverized coal pyrolysis stove is discharged from pyrolysis gas outlet, carries out dust removal process via cyclone dust collectors successively, oil gas condensation device enters
Row condensation process, pyrolysis air purifying apparatus carry out purified treatment, obtain the clean gas of low temperature, the clean gas enters described
In gas mixer;Meanwhile the upgraded coal in the electric arc furnaces and lime stone produce calcium carbide by the hot method of oxygen, also create
High-temperature flue gas, the high-temperature flue gas are discharged via the offgas outlet of the electric arc furnaces, and temperature is 1200 DEG C -1300 DEG C, enters institute
State in gas mixer.Due to the gas mixer entrance respectively with the pyrolysis air purifying apparatus and the electric arc furnaces
Offgas outlet connects so that the clean gas of the pyrolysis air purifying apparatus discharge is entered with high-temperature flue gas caused by the electric arc furnaces
Enter into the gas mixer to be mixed and adjusted temperature, two kinds of different gases of temperature are via the gas mixer
Mixed gas is obtained after mixing, the temperature of the mixed gas is lower than the ash fusion point ST temperature of coal at least 100 DEG C.The gas mixes
The outlet of clutch is connected with the pyrolysis gas entrance of the pulverized coal pyrolysis stove, and the mixed gas is passed into the pulverized coal pyrolysis stove
In, the pyrolytic reaction for the pulverized coal pyrolysis stove provides thermal source.
According to specific embodiment of the utility model, hydrogen-blowing oxygen provided by the utility model and heat energy synthesis profit
Calcium carbide furnace system, calcium carbide, the final product of the calcium carbide furnace system are produced as raw materials for production using feed coal and lime stone
As shown in table 2.Wherein, the lime stone uses quick lime, and the component CaO contained in the quick lime more than 90% (presses quality
Percentage calculates), the feed coal uses low-order coal, and the main character of the low-order coal is as shown in table 1.It is 0.5- by particle diameter
5mm feed coal is mixed with particle diameter 0.5-5mm lime stones, and mixed proportion is feed coal (i.e. fine coal):It is 1 that lime, which is pressed,:
1.1.Mixed raw material is sent into pulverized coal pyrolysis stove and carries out pyrolysis processing, to be pyrolyzed the clean gas of air purifying apparatus discharge
With the electric arc furnaces caused by high-temperature flue gas as thermal source for pyrolysis energy is provided, pyrolysis temperature at 900 DEG C, obtain upgraded coal with
Lime stone and pyrolysis gas.Upgraded coal caused by pyrolysis and lime stone enter the raw material in electric arc furnaces as production calcium carbide, hydrogen
Gas-oxygen sprays into electric arc furnaces the thermal source for being used as production calcium carbide by spray gun, and high-temperature flue gas is produced by hydrogen and oxygen combustion,
At 1200 DEG C, it enters flue-gas temperature when the high-temperature flue gas is in the offgas outlet of electric arc furnaces with the pyrolysis gas Jing Guo purified treatment
Mixed in row gas mixer, obtain mixed gas, the temperature of the mixed gas is 1100 DEG C.Also, pulverized coal pyrolysis
Pyrogenic steam caused by stove carries out dust removal process via cyclone dust collectors successively, oil gas condensation device carries out condensation process, pyrolysis
Air purifying apparatus carries out purified treatment, obtains clean gas, is passed into the gas mixer and is mixed, as fine coal heat
Solve the part of heat energy that stove carries out pyrolysis processing;Wherein, pyrogenic steam caused by pulverized coal pyrolysis stove is carried out into oil gas condensation device
Condensation process, obtain coal tar;The circulation of a pyrolysis gas part is mixed with high-temperature flue gas caused by electric arc furnaces as pyrolysis thermal source.Most
Eventually, electric arc furnaces uses the hot method of oxygen, obtains calcium carbide and high-temperature flue gas, the gas forming amount 277L/kg of product calcium carbide, calcium carbonate content
74.1%.
The main character of the low-order coal of table 1
Project | Unit | Numerical value | Remarks |
Quan Shui | % | 3.5 | As-received |
Fixed carbon | % | 62.2 | Butt |
Volatile matter | % | 37 | Butt |
Ash content | % | 7 | Butt |
The product that the calcium carbide furnace system of table 2 obtains
Inventor has found that the utility model provides a kind of furnace of calcium carbide system of hydrogen-blowing oxygen and heat integration
System, the calcium carbide furnace system using electric arc furnaces provide all of electric energy in calcium carbide production, with traditional calcium carbide production technology
The mode of heating of heat is different, and the electric arc furnaces utilizes heat caused by hydrogen-oxygen combustion to substitute part electric energy, solves calcium carbide
The problem of producing high power consumption;Pulverized coal pyrolysis in the pulverized coal pyrolysis stove is that the part of waste heat that flue gas is produced by absorbing is used as heat
Source, the upgrading for solving the problems, such as low-order coal utilize, and reduce production cost;It is pyrolyzed by using pulverized coal pyrolysis stove, can
The hydrogen content in calcium carbide stove exhaust is improved, available for various industrial chemicals, wherein, hydrogen can be used as pulverized coal pyrolysis stove to produce
Byproduct carry out extraction production, recycle;Reaction interval in furnace of calcium carbide is expanded, the utilization rate of stove furnace of calcium carbide is improved, carries
High yield;Using pyrogenic steam caused by pyrolysis in pulverized coal pyrolysis stove oil, the combustible gas of high-quality are obtained by condensation, purification
Product, waste recovery is realized, produce new benefit, reduce cost indirectly.
Calcium carbide furnace system provided by the utility model is described in detail above, embodiment pair used herein
The principle and embodiment of the application is set forth, and the explanation of above example is only intended to help and understands the present processes
And its core concept;Meanwhile for those of ordinary skill in the art, according to the thought of the application, in embodiment and
There will be changes in application, in summary, this specification content should not be construed as the limitation to the application.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (5)
1. a kind of hydrogen-oxygen mix injection and the calcium carbide furnace system of heat integration, it is characterised in that mixed including solid
Device, pulverized coal pyrolysis stove, cyclone dust collectors, oil gas condensation device, pyrolysis air purifying apparatus, gas mixer, electric arc furnaces, oxygen tank
And hydrogen gas tank, wherein:
The solid mixer, for feed coal and lime stone to be well mixed;
The pulverized coal pyrolysis stove, is connected with the solid mixer, for the feed coal that will be well mixed and the lime
Stone carries out pyrolysis processing;
The inlet end of the cyclone dust collectors is connected with the pyrolysis gas outlet of the pulverized coal pyrolysis stove, and outlet side and the oil gas are cold
Solidifying device connection;
The oil gas condensation device is connected with the cyclone dust collectors, for caused pyrolysis gas in the pulverized coal pyrolysis stove to be entered
Row condensation process;
The pyrolysis air purifying apparatus is connected with the oil gas condensation device, for the gas that will be discharged in the oil gas condensation device
Body carries out purified treatment;
Offgas outlet of the entrance of the gas mixer respectively with the pyrolysis air purifying apparatus and the electric arc furnaces is connected, institute
The outlet for stating gas mixer is connected with the pyrolysis gas entrance of the pulverized coal pyrolysis stove, for the pyrolysis air purifying apparatus to be arranged
The gas gone out is mixed with flue gas caused by the electric arc furnaces, and the pyrolytic reaction for the pulverized coal pyrolysis stove provides thermal source;
The electric arc furnaces is provided with charging aperture and air inlet, the charging aperture and institute using the hot method next life electricity production stone of oxygen, its side wall
The coke export connection of pulverized coal pyrolysis stove is stated, the air inlet is connected with the oxygen tank and hydrogen gas tank respectively.
2. calcium carbide furnace system as claimed in claim 1, it is characterised in that also include including multiple hydrogen-oxygen rifles, each hydrogen-oxygen rifle:
Muzzle, hydrogen inlet and oxygen intake, the muzzle are connected with the air inlet of the electric arc furnace sidewall, the hydrogen inlet and institute
Hydrogen gas tank connection is stated, the oxygen intake is connected with the oxygen tank, and the multiple hydrogen-oxygen rifle is equal from surrounding by hydrogen and oxygen
In even penetrating electric arc furnaces, oxygen and hydrogen is burnt in the electric arc furnaces, heat is provided for reaction.
3. calcium carbide furnace system as claimed in claim 2, it is characterised in that the lance head of the hydrogen-oxygen rifle is that angle is gathered to center
The oblique hole structure of collection, for strengthening the mixing between oxygen and hydrogen.
4. the calcium carbide furnace system as described in claim any one of 1-3, it is characterised in that the pulverized coal pyrolysis stove be fluid bed or
Down-flow fluidized bed using ECT fast pyrolysis reactor;The pyrolysis air purifying apparatus includes desulfurization unit, deamination unit, de- benzene unit, de- naphthalene list
Member.
5. the calcium carbide furnace system as described in claim any one of 1-3, it is characterised in that and described also including calcium carbide holding vessel
The discharging opening connection of electric arc furnaces.
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CN111748673A (en) * | 2020-06-02 | 2020-10-09 | 北京科技大学 | Multifunctional oxyhydrogen burner for electric arc furnace steelmaking and energy supply control method |
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