CN206886687U - A kind of system for producing calcium carbide - Google Patents
A kind of system for producing calcium carbide Download PDFInfo
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- CN206886687U CN206886687U CN201720608195.7U CN201720608195U CN206886687U CN 206886687 U CN206886687 U CN 206886687U CN 201720608195 U CN201720608195 U CN 201720608195U CN 206886687 U CN206886687 U CN 206886687U
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Abstract
A kind of system for producing calcium carbide is the utility model is related to, including：Mixing arrangement, pyrolysis oven, dust arrester, condensing unit, purifier, hot carrier gas synthesizer, electric arc furnaces and blowing oxygen system, wherein, mixing arrangement is connected with pyrolysis oven；Pyrolysis oven is connected with the dust arrester；Dust arrester, condensing unit and purifier are sequentially connected；Purifier is connected with hot carrier gas synthesizer；Hot carrier gas synthesizer is connected with pyrolysis oven；Electric arc furnaces is connected with hot carrier gas synthesizer and pyrolysis oven respectively, and electric arc furnaces includes：Multiple solids inlets and multiple blowing oxygen mouths, wherein, multiple solids inlet intervals are in the side wall of electric arc furnace body；In the side wall of electric arc furnace body, blowing oxygen system is connected with electric arc furnaces at multiple blowing oxygen mouth intervals.The energy saving of system, cost of material are low, and space availability ratio is big, while the high-temperature flue gas fully recycled in stove is rapidly entered in pyrolysis oven, the thermal source as pyrolysis oven.
Description
Technical field
The utility model, which is created, belongs to coal chemical technology, and in particular to a kind of system for producing 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, it is mainly for the production of acetylene and ethynylation chemical product, including vinyl chloride serial, vinyl acetate series and acrylic etc.
Row product.Calcium carbide is had a very important role to Chinese national economy development, and calcium carbide yield is continuously increased nearly ten years.At present
Production technology is mainly electrothermal way and the hot method of oxygen, and electrothermal way is to produce high temperature by electric arc furnaces, there is provided heat produces calcium carbide, specifically
Its production process is to be added mixture into by the population or pipeline of electric furnace upper end in electric furnace, is added in open or closed electric furnace
Heat is to 2000 DEG C or so, the calcium carbide melted, through cool down it is broken after be used as finished product packing, the carbon monoxide generated in reaction then according to
The type of electric arc furnaces is discharged by different way, but because electrode arc concentrates on the center of electric arc furnaces, unit heat size profit
With limited efficacy, yield poorly and power consumption is high, associated thermal energy can not recycle, and require high for feed stock for blast furnace, can not eat powder
Material.The hot method of oxygen is that block calcic raw material and carbon raw material are entered into hypomere electric arc after epimere shaft furnace is preheated to 800~1300 DEG C
In stove, 1700~2200 DEG C are risen to the compound heat supply temperature of electrode by oxygen and breeze blowing in electric arc furnaces, reaction generation is high
Grade calcium carbide, electrical power generators are driven by gas turbine combustion after caused electric arc furnace gas removing dust purification, waste gas sensible heat is by remaining
Heat boiler reclaim, but solves the problems, such as block material react exist, because block stock specific surface area is small so that need to compared with
High-temperature could complete reaction and cause system production high energy consumption, and the hot method raw material of oxygen remains as the higher block coke of price at present
And lime stone, cost of material is not effectively reduced, high-temperature flue gas is used only for preheating raw material and generating, not high using it
The properties such as the reproducibility of wet body, while can not also use powder to carry out calcium carbide production as raw material.
Utility model content
The utility model is in view of the shortcomings of the prior art, it is proposed that a kind of system for producing calcium carbide, the system is by electricity
Oxygen blast in arc stove, the carbon burning in oxygen and stove produce heat and substitute a part of electric energy, reduce power consumption；And due to existing skill
The reaction compartment of electric arc furnaces in art is concentrated mainly on centre, and the utility model is made by increasing powder in electric arc furnaces surrounding
Make a living the part material of electricity production stone, coordinate oxygen combustion, a part of powder can be utilized, reduce cost of material, by electricity
Oxygen blast in arc stove, the combustion reaction space in electric arc furnaces is expanded, improves space availability ratio, improves unit volume yield,
The production capacity of electric arc furnaces can be effectively improved, while the high-temperature flue gas fully recycled in stove is rapidly entered in pyrolysis oven, as
The thermal source of pyrolysis oven, produce powder.
In order to solve the above technical problems, the technical scheme that the utility model is taken is：
The utility model proposes a kind of system for producing calcium carbide, including：Mixing arrangement, pyrolysis oven, dust arrester, condensation
Device, purifier, hot carrier gas synthesizer, electric arc furnaces and blowing oxygen system, it is characterised in that wherein, the mixing dress
Put and be connected with pyrolysis oven, carried out for the raw coal and limestone material that are mixed through the mixing arrangement to be passed through in the pyrolysis oven
Pyrolysis；The pyrolysis oven is connected with the dust arrester, and forms circulation loop I, miscellaneous for will be discharged through the pyrolysis oven
Matter pyrolysis gas is sent into the dust arrester and carries out dedusting, and the dust arrester sends the pyrolysis impurity after dedusting back to the pyrolysis
It is pyrolyzed in stove；The dust arrester, condensing unit and purifier are sequentially connected；The purifier and the hot carrier gas
Synthesizer is connected, for will be passed through after the not solidifying pyrolysis gas purification of the condensing unit in the hot carrier gas synthesizer simultaneously
Hot carrier gas is synthesized with the flue gas of electric arc furnaces discharge；The hot carrier gas synthesizer is connected with the pyrolysis oven, for by institute
The hot carrier gas for stating synthesis is passed through in the pyrolysis oven as pyrolysis thermal source；The electric arc furnaces respectively with the hot carrier gas synthesizer
It is connected with pyrolysis oven, the electric arc furnaces includes：Multiple solids inlets and multiple blowing oxygen mouths, wherein, the multiple solid enters
Mouth interval is in the side wall of the electric arc furnace body；The multiple blowing oxygen mouth interval is located at the side of the electric arc furnace body
On wall, the blowing oxygen system is connected with the electric arc furnaces.
Further, the mixing arrangement includes：Material inlet and material outlet, the material outlet and the pyrolysis oven
Solids inlet be connected, be pyrolyzed for the material mixed through the mixing arrangement to be passed through in the pyrolysis oven.
Further, the pyrolysis oven includes：Solids inlet, solid outlet, air inlet, gas outlet and returning charge import, its
In, the solids inlet of the pyrolysis oven is connected with the material outlet, the solid outlet of the pyrolysis oven and the electric arc furnaces
Solids inlet is connected, and the air inlet of the pyrolysis oven is connected with the gas outlet of the hot carrier gas synthesizer, wherein, the circulation
Loop I is：The gas outlet of the pyrolysis oven is connected with the air inlet of the dust arrester, and the returning charge import fills with the dedusting
The solid outlet put is connected.
Further, the electric arc furnaces also includes：Feed(raw material)inlet, exhanst gas outlet and solid outlet, wherein, the raw material enters
Centre mouthful at the top of the electric arc furnaces, for being passed through coke briquette in the middle part of the electric arc furnaces and lime block carries out reaction production
Calcium carbide；The electric arc furnaces forms circulation loop II with the hot carrier gas synthesizer and pyrolysis oven, and the circulation loop II is：Institute
The exhanst gas outlet for stating electric arc furnaces is connected with the air inlet of the hot carrier gas synthesizer, the gas outlet of the hot carrier gas synthesizer
It is connected with the air inlet of the pyrolysis oven, the solid outlet of the pyrolysis oven is connected with multiple solids inlets of the electric arc furnaces.
Further, the dust arrester includes：Air inlet, solid outlet and gas outlet；Wherein, the dust arrester
Air inlet is connected with the gas outlet of the pyrolysis oven, the returning charge import phase of the solid outlet of the dust arrester and the pyrolysis oven
Even, the gas outlet of the dust arrester is connected with the air inlet of the condensing unit.
Further, the condensing unit includes：Air inlet, gas outlet and tar outlet, the air inlet of the condensing unit
Mouth is connected with the gas outlet of the dust arrester, and the gas outlet of the condensing unit is connected with the air inlet of the purifier.
Further, the purifier includes：Air inlet, gas outlet and pyrolysis gas outlet, the purifier enter
Gas port is connected with the gas outlet of the condensing unit, the gas outlet of the purifier and the air inlet of the hot carrier gas synthesizer
Mouth is connected.
Further, the blowing oxygen system includes：Spray gun, control device and source of the gas, the control device with it is described
The trigger of spray gun is connected, and for controlling the movement and injection of the spray gun, the inflatable end of the spray gun is connected with source of the gas.
The utility model comprises at least following beneficial effect：
1）The utility model provides the mode of heat all of electric energy when solving production calcium carbide, the system is by electricity
Oxygen blast in arc stove, the carbon particle burning in oxygen and stove produce heat and substitute a part of electric energy, reduce power consumption；
2）Because the reaction compartment of electric arc furnaces of the prior art is concentrated mainly on centre, the utility model by
Electric arc furnaces surrounding increases part material of the powder as production calcium carbide, coordinates oxygen combustion, can utilize a part of powder, reduces
Cost of material, by the oxygen blast into electric arc furnaces, expands the combustion reaction space in electric arc furnaces, improves space availability ratio,
Unit volume yield is improved, the production capacity of electric arc furnaces can be effectively improved；
3）The high-temperature flue gas fully recycled in stove simultaneously is rapidly entered in pyrolysis oven, raw as the thermal source of pyrolysis oven
Carbon particle and lime particle powder, i.e. upgraded coal are produced, upgraded coal powder, which absorbs, produces flue gas heat, solves the upgrading of low-order coal
The problem of utilization；
4）Combustible gas is can extract from the not solidifying pyrolysis gas in the part of pyrolysis gas outlet discharge, produces new benefit；
5）H in electric arc furnaces can be improved by pyrolysis2Content, available for various industrial chemicals.
Brief description of the drawings
Fig. 1 is the overall structure figure that the utility model produces calcium carbide system.
Fig. 2 is the structure flow chart that the utility model produces calcium carbide system.
Wherein, mixing arrangement 1, material inlet 101, material outlet 102；
Pyrolysis oven 2, solids inlet 201, solid outlet 202, air inlet 203, gas outlet 204, returning charge import 205；
Dust arrester 3, air inlet 301, solid outlet 302, gas outlet 303；
Condensing unit 4, air inlet 401, gas outlet 402, tar outlet 403；
Purifier 5, air inlet 501, gas outlet 502, pyrolysis gas outlet 503；
Hot carrier gas synthesizer 6, air inlet 601, gas outlet 602；
Electric arc furnaces 7, solids inlet 701, blowing oxygen mouth 702, feed(raw material)inlet 703, exhanst gas outlet 704, solid outlet
705；
Blowing oxygen system 8.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to limitation of the present utility model.Unreceipted particular technique or condition in embodiment, according in the art
Document described by technology or condition or carried out according to product description.
The utility model proposes a kind of system for producing calcium carbide, Fig. 1 is the entirety that the utility model produces calcium carbide system
Structure chart, shown in reference picture 1, including：Mixing arrangement 1, pyrolysis oven 2, dust arrester 3, condensing unit 4, purifier 5, heat carry
Gas synthesizer 6, electric arc furnaces 7 and blowing oxygen system 8.
Inventor has found that the system of the production calcium carbide according to the utility model embodiment, the utility model solves
The mode of heat is provided when producing calcium carbide all of electric energy, the system is by the oxygen blast into electric arc furnaces, the carbon in oxygen and stove
Particle burning produces heat and substitutes a part of electric energy, reduces power consumption；Due to the reaction compartment master of electric arc furnaces of the prior art
Centre is concentrated on, the utility model produces the part material of calcium carbide by being used as in electric arc furnaces surrounding increase powder, matched somebody with somebody
Oxygen combustion is closed, a part of powder can be utilized, cost of material is reduced, by the oxygen blast into electric arc furnaces, expand electric arc furnaces
Interior combustion reaction space, improves space availability ratio, improves unit volume yield, can effectively improve the production of electric arc furnaces
Energy；The high-temperature flue gas fully recycled in stove simultaneously is rapidly entered in pyrolysis oven, as the thermal source of pyrolysis oven, produces carbon particle
With lime particle powder, i.e. upgraded coal, upgraded coal powder, which absorbs, produces flue gas heat, and solve that the upgrading of low-order coal utilizes asks
Topic；And combustible gas is can extract from the not solidifying pyrolysis gas in the part of pyrolysis gas outlet discharge, produces new benefit；In addition, pass through
Pyrolysis can improve H in electric arc furnaces2Content, available for various industrial chemicals.
According to embodiment of the present utility model, Fig. 2 produces the structure flow chart of calcium carbide system, reference picture for the utility model
Shown in 2, the mixing arrangement is connected with pyrolysis oven, specifically, the mixing arrangement includes：Material inlet 101 and material outlet
102, the material outlet is connected with the solids inlet of the pyrolysis oven, for the raw coal and stone that will be mixed through the mixing arrangement
Lime stone material, which is passed through in the pyrolysis oven, to carry out pyrolysis and produces upgraded coal, and the upgraded coal is preferably carbon particle and lime particle,
It is sent into as powder in electric arc furnaces and carries out production calcium carbide, turns into the raw material of production calcium carbide.
According to some embodiments of the utility model, the specific species of mixing arrangement described in the utility model is unrestricted,
As long as various materials can be sufficiently mixed.
According to embodiment of the present utility model, shown in reference picture 2, the pyrolysis oven is connected with the dust arrester, and shape
Into circulation loop I, specifically, the pyrolysis oven includes：Solids inlet 201, solid outlet 202, air inlet 203, gas outlet 204
With returning charge import 205, wherein, the solids inlet of the pyrolysis oven is connected with the material outlet, and the solid of the pyrolysis oven goes out
Mouth is connected with the solids inlet of the electric arc furnaces, the gas outlet phase of the air inlet of the pyrolysis oven and the hot carrier gas synthesizer
Even, wherein, the circulation loop I is：The gas outlet of the pyrolysis oven is connected with the air inlet of the dust arrester, the returning charge
Import is connected with the solid outlet of the dust arrester, for the impurity pyrolysis gas that will be discharged through the pyrolysis oven, through the heat
Solve the gas outlet of stove and the air inlet of dust arrester is sent into the dust arrester and carries out dedusting, the dust arrester is by after dedusting
Solid outlet and the returning charge import of the pyrolysis impurity through the dust arrester send back in the pyrolysis oven and be pyrolyzed.
According to embodiment of the present utility model, shown in reference picture 2, the dust arrester, condensing unit and purifier according to
It is secondary to be connected, specifically, the dust arrester includes：Air inlet 301, solid outlet 302 and gas outlet 303；Wherein, the dedusting
The air inlet of device is connected with the gas outlet of the pyrolysis oven, the returning charge of the solid outlet of the dust arrester and the pyrolysis oven
Import is connected, and the gas outlet of the dust arrester is connected with the air inlet of the condensing unit；The condensing unit includes：Air inlet
Mouth 401, gas outlet 402 and tar outlet 403, the air inlet of the condensing unit are connected with the gas outlet of the dust arrester,
The gas outlet of the condensing unit is connected with the air inlet of the purifier, for the pyrolysis gas after dedusting to be condensed,
Condense the coal tar formed and discharge collection through the tar outlet, not solidifying pyrolysis gas, which enters in the purifier, to be purified.
According to embodiment of the present utility model, shown in reference picture 2, the purifier and the hot carrier gas synthesizer phase
Even, for will be passed through after the not solidifying pyrolysis gas purification of the condensing unit in the hot carrier gas synthesizer and with the electric arc
The flue gas that fire grate goes out synthesizes hot carrier gas, specifically, the purifier includes：Air inlet 501, gas outlet 502 and pyrolysis gas go out
Mouth 503, the air inlet of the purifier is connected with the gas outlet 602 of the condensing unit, the gas outlet of the purifier
It is connected with the air inlet 601 of the hot carrier gas synthesizer, for the not solidifying pyrolysis gas to be purified, not coagulating after purification
A pyrolysis gas part is passed through in the hot carrier gas synthesizer, and pyrolysis gas outlet discharge of the another part through the purifier is received
Collection, never coagulate and combustible gas is can extract in pyrolysis gas, produce new benefit.
According to embodiment of the present utility model, shown in reference picture 2, the hot carrier gas synthesizer 6 also with the pyrolysis oven
It is connected, for the hot carrier gas of the synthesis to be passed through in the pyrolysis oven as pyrolysis thermal source.
According to embodiment of the present utility model, shown in reference picture 2, the electric arc furnaces respectively with the hot carrier gas synthesizer
It is connected with pyrolysis oven, the electric arc furnaces includes：Multiple solids inlets 701, multiple blowing oxygen mouths 702, feed(raw material)inlet 703, cigarette
Gas outlet 704 and solid outlet 705, wherein, the multiple solids inlet interval is used in the side wall of the electric arc furnace body
In by after the pyrolysis oven pyrolysis inwall of the caused upgraded coal along the electric arc furnaces be sent into the surrounding of the electric arc furnaces, to carry
Space-efficient and raising unit volume yield；The multiple blowing oxygen mouth interval is located at the side wall of the electric arc furnace body
On, the blowing oxygen system 8 is connected with the electric arc furnaces, and by the blowing oxygen mouth to carrying out oxygen in the electric arc furnaces
Gas blowout is blown, and the upgraded coal in the oxygen and electric arc furnaces of injection is reacted generation calcium carbide.
According to embodiment of the present utility model, shown in reference picture 2, during the feed(raw material)inlet is located at the top of the electric arc furnaces
Between, for being passed through coke briquette in the middle part of the electric arc furnaces and lime block carries out reaction production calcium carbide；The electric arc furnaces and the heat
Carrier gas synthesizer and pyrolysis oven form circulation loop II, and the circulation loop II is：The exhanst gas outlet of the electric arc furnaces and institute
The air inlet for stating hot carrier gas synthesizer is connected, the gas outlet of the hot carrier gas synthesizer and the air inlet phase of the pyrolysis oven
Even, the solid outlet of the pyrolysis oven is connected with multiple solids inlets of the electric arc furnaces, fully recycles the high temperature in stove
Flue gas is rapidly entered in pyrolysis oven, as the thermal source of pyrolysis oven, produces carbon particle and lime particle powder, i.e. upgraded coal, upgrading
Coal dust material, which absorbs, produces flue gas heat, and the upgrading for solving the problems, such as low-order coal utilizes.
According to some embodiments of the utility model, the utility model can include now with described in technology to described
Coke briquette is passed through in the middle part of electric arc furnaces and lime block carries out reaction production calcium carbide, using coke briquette and lime block as production calcium carbide
Raw material；Caused carbon particle and lime particle upgraded coal after the improved increase of the utility model is pyrolyzed with pyrolysis oven can also be included
As the raw material and heat energy of production calcium carbide, the utility model in electric arc furnaces surrounding by increasing carbon particle and lime particle powder work
Make a living the raw material of electricity production stone, coordinate oxygen combustion, produce high temperature, there is provided the heat in electric arc furnaces required for calcium carbide reaction, can be with
Using a part of powder, cost of material is reduced, by the oxygen blast into electric arc furnaces, the combustion reaction expanded in electric arc furnaces is empty
Between, space availability ratio is improved, improves unit volume yield, the production capacity of electric arc furnaces can be effectively improved.
According to embodiment of the present utility model, shown in reference picture 2, the blowing oxygen system includes：Spray gun, control device
And source of the gas, the control device are connected with the trigger of the spray gun, for controlling the movement and injection of the spray gun, the spray gun
Inflatable end be connected with source of the gas, for being filled with oxygen, and by the nozzle of the spray gun through the multiple blowing oxygen mouth to institute
State injecting oxygen in electric arc furnaces.
According to some embodiments of the utility model, the specific species of control system described in the utility model is unrestricted,
If the movement and injection of the spray gun can be controlled, and the particular number of the spray gun is unrestricted, according to electric arc
The heat size size of stove is determined.
In another aspect of the present utility model, there is provided a kind of system production calcium carbide using production calcium carbide noted earlier
Method, according to embodiment of the present utility model, comprise the following steps：
A. coke briquette and lime block are passed through from middle part by the feed(raw material)inlet 703 of the electric arc furnaces 7, as production calcium carbide
Raw material.
B. simultaneously, it is the material inlet 101 that 0.5-5mm raw coal and lime stone pass through the mixing arrangement 1 by particle diameter
It is passed through in the mixing arrangement and is mixed, mixed proportion is that the raw coal/lime stone is 1.05-1.2.
C. by the solids inlet of material outlet 102 of the mixed raw material through the mixing arrangement and the pyrolysis oven 2
It is pyrolyzed in the 201 feeding pyrolysis ovens, pyrolysis temperature is 850 DEG C -1100 DEG C.
D. impurity pyrolysis gas caused by pyrolysis carries out dedusting through the dust arrester 3, is removed described in the pyrolysis gas warp after dedusting
The gas outlet 303 of dirt device enters in the condensing unit 4, pyrolysis solid outlet of the impurity through the dust arrester after dedusting
302 and the returning charge import 205 of the pyrolysis oven send back in the pyrolysis oven and be pyrolyzed again, the condensing unit is by after dedusting
Pyrolysis gas condensed, condense the coal tar of formation and discharged through the tar outlet 403 and collected, described in not solidifying pyrolysis gas enters
Purified in purifier 5, the not solidifying pyrolysis gas part after purification is passed through in the hot carrier gas synthesizer 6, another portion
The discharge of pyrolysis gas outlet 503 of purifier described in lease making is collected.
According to embodiment of the present utility model, shown in reference picture 2, the dust arrester, condensing unit and purifier according to
It is secondary to be connected, specifically, the dust arrester includes：Air inlet, solid outlet and gas outlet；Wherein, the dust arrester enters
Gas port is connected with the gas outlet of the pyrolysis oven, the returning charge import phase of the solid outlet of the dust arrester and the pyrolysis oven
Even, the gas outlet of the dust arrester is connected with the air inlet of the condensing unit；The condensing unit includes：Air inlet, go out
Gas port and tar outlet, the air inlet of the condensing unit are connected with the gas outlet of the dust arrester, the condensing unit
Gas outlet is connected with the air inlet of the purifier, for the pyrolysis gas after dedusting to be condensed, condenses the coal tar of formation
Oil is discharged through the tar outlet and collected, and not solidifying pyrolysis gas, which enters in the purifier, to be purified；The purifier with
The hot carrier gas synthesizer is connected, and is closed for will be passed through the hot carrier gas after the not solidifying pyrolysis gas purification of the condensing unit
Hot carrier gas is synthesized into device and with the flue gas of electric arc furnaces discharge, specifically, the purifier includes：Air inlet, go out
Gas port and pyrolysis gas outlet, the air inlet of the purifier are connected with the gas outlet of the condensing unit, the purifier
Gas outlet be connected with the air inlet of the hot carrier gas synthesizer, for the not solidifying pyrolysis gas to be purified, after purification
A not solidifying pyrolysis gas part be passed through in the hot carrier gas synthesizer, pyrolysis gas outlet of the another part through the purifier
Discharge is collected, and be can extract combustible gas in never solidifying pyrolysis gas, is produced new benefit.
E. simultaneously, the He of solid outlet 202 of carbon particle caused by pyrolysis and lime particle upgraded coal through the pyrolysis oven 2
Inwall of the multiple solids inlets 701 of the electric arc furnaces 7 along the electric arc furnaces is sent into electric arc furnaces surrounding, former as production calcium carbide
Material and thermal source.
F. opening the control device controls the spray gun to be moved to the multiple blowing oxygen mouth and to the electric arc furnaces
Interior carry out injecting oxygen, oxygen and the upgraded coal carry out reactive combustion, and provide heat for the generation of calcium carbide.
According to embodiment of the present utility model, shown in reference picture 2, the electric arc furnaces respectively with the hot carrier gas synthesizer
It is connected with pyrolysis oven, the electric arc furnaces includes：Multiple solids inlets and multiple blowing oxygen mouths, wherein, the multiple solid enters
Mouthful interval in the side wall of the electric arc furnace body, for will after pyrolysis oven pyrolysis caused upgraded coal along the electricity
The inwall of arc stove is sent into the surrounding of the electric arc furnaces, to improve space availability ratio and improve unit volume yield；The multiple oxygen
In the side wall of the electric arc furnace body, the blowing oxygen system is connected with the electric arc furnaces, and leads at gas blowout mouthpiece interval
The blowing oxygen mouth is crossed to carrying out blowing oxygen in the electric arc furnaces, reacts the upgraded coal in the oxygen and electric arc furnaces of injection
Generate calcium carbide.
G. the temperature generated in the electric arc furnaces is 1200 DEG C -1300 DEG C of flue gas of the high-temperature flue gas through the electric arc furnaces
The discharge of outlet 704, the not solidifying pyrolysis gas with being discharged through the purifier, which enters in the hot carrier gas synthesizer 6, to be synthesized
Hot carrier gas, air inlet 203 of the hot carrier gas through the pyrolysis oven is passed through in the pyrolysis oven to be mixed with impurity pyrolysis gas, makes to mix
Mixed gas temperature after conjunction is less than 100 DEG C of the ash fusion point ST temperature of the raw coal.
H. solid outlet 705 of the caused calcium carbide through the electric arc furnaces is discharged in the electric arc furnaces.
Inventor has found that the system of the production calcium carbide according to the utility model embodiment, the utility model solves
The mode of heat is provided when producing calcium carbide all of electric energy, the system is by the oxygen blast into electric arc furnaces, the carbon in oxygen and stove
Particle burning produces heat and substitutes a part of electric energy, reduces power consumption；Due to the reaction compartment master of electric arc furnaces of the prior art
Centre is concentrated on, the utility model produces the part material of calcium carbide by being used as in electric arc furnaces surrounding increase powder, matched somebody with somebody
Oxygen combustion is closed, a part of powder can be utilized, cost of material is reduced, by the oxygen blast into electric arc furnaces, expand electric arc furnaces
Interior combustion reaction space, improves space availability ratio, improves unit volume yield, can effectively improve the production of electric arc furnaces
Energy；The high-temperature flue gas fully recycled in stove simultaneously is rapidly entered in pyrolysis oven, as the thermal source of pyrolysis oven, produces carbon particle
With lime particle powder, i.e. upgraded coal, upgraded coal powder, which absorbs, produces flue gas heat, and solve that the upgrading of low-order coal utilizes asks
Topic；And combustible gas is can extract from the not solidifying pyrolysis gas in the part of pyrolysis gas outlet discharge, produces new benefit；In addition, pass through
Pyrolysis can improve H in electric arc furnaces2Content, available for various industrial chemicals.
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.
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
Identical embodiment or example need not be directed to by stating.Moreover, specific features, structure, material or the feature of description can be
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 can be carried out the different embodiments or example and the feature of different embodiments or example described in this specification
With reference to 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, meanwhile, for those of ordinary skill in the art, foundation
The thought of the application, in specific embodiments and applications there will be changes.
Claims (8)
1. a kind of system for producing calcium carbide, including：Mixing arrangement, pyrolysis oven, dust arrester, condensing unit, purifier, heat carry
Gas synthesizer, electric arc furnaces and blowing oxygen system, it is characterised in that wherein,
The mixing arrangement is connected with pyrolysis oven, for the raw coal and limestone material that are mixed through the mixing arrangement to be passed through into institute
State in pyrolysis oven and be pyrolyzed；
The pyrolysis oven is connected with the dust arrester, and forms circulation loop I, for the impurity that will be discharged through the pyrolysis oven
Pyrolysis gas is sent into the dust arrester and carries out dedusting, and the dust arrester sends the pyrolysis impurity after dedusting back to the pyrolysis oven
In be pyrolyzed；
The dust arrester, condensing unit and purifier are sequentially connected；
The purifier is connected with the hot carrier gas synthesizer, for the not solidifying pyrolysis gas through the condensing unit to be purified
It is passed through afterwards in the hot carrier gas synthesizer and synthesizes hot carrier gas with the flue gas of electric arc furnaces discharge；
The hot carrier gas synthesizer is connected with the pyrolysis oven, for the hot carrier gas of the synthesis to be passed through in the pyrolysis oven
As pyrolysis thermal source；
The electric arc furnaces is connected with the hot carrier gas synthesizer and pyrolysis oven respectively, and the electric arc furnaces includes：Multiple solids enter
Mouth and multiple blowing oxygen mouths, wherein, the multiple solids inlet interval is in the side wall of the electric arc furnace body；It is described more
In the side wall of the electric arc furnace body, the blowing oxygen system is connected with the electric arc furnaces at individual blowing oxygen mouth interval.
2. system according to claim 1, it is characterised in that the mixing arrangement includes：Material inlet and material outlet,
The material outlet is connected with the solids inlet of the pyrolysis oven, described for the material mixed through the mixing arrangement to be passed through
It is pyrolyzed in pyrolysis oven.
3. system according to claim 2, it is characterised in that the pyrolysis oven includes：Solids inlet, solid outlet, enter
Gas port, gas outlet and returning charge import, wherein, the solids inlet of the pyrolysis oven is connected with the material outlet, the pyrolysis oven
Solid outlet be connected with the solids inlet of the electric arc furnaces, the air inlet of the pyrolysis oven and the hot carrier gas synthesizer
Gas outlet is connected, and the circulation loop I is：The gas outlet of the pyrolysis oven is connected with the air inlet of the dust arrester, described
Returning charge import is connected with the solid outlet of the dust arrester.
4. system according to claim 1, it is characterised in that the electric arc furnaces also includes：Feed(raw material)inlet, exhanst gas outlet and
Solid outlet, wherein, the feed(raw material)inlet is located at the centre at the top of the electric arc furnaces, for being passed through Jiao to electric arc furnaces middle part
Carbon block and lime block carry out reaction production calcium carbide；The electric arc furnaces is formed with the hot carrier gas synthesizer and pyrolysis oven and is recycled back to
Road II, the circulation loop II are：The exhanst gas outlet of the electric arc furnaces is connected with the air inlet of the hot carrier gas synthesizer, institute
The gas outlet for stating hot carrier gas synthesizer is connected with the air inlet of the pyrolysis oven, the solid outlet of the pyrolysis oven and the electricity
Multiple solids inlets of arc stove are connected.
5. system according to claim 1, it is characterised in that the dust arrester includes：Air inlet, solid outlet and go out
Gas port；Wherein, the air inlet of the dust arrester is connected with the gas outlet of the pyrolysis oven, the solid outlet of the dust arrester
It is connected with the returning charge import of the pyrolysis oven, the gas outlet of the dust arrester is connected with the air inlet of the condensing unit.
6. system according to claim 1, it is characterised in that the condensing unit includes：Air inlet, gas outlet and tar
Outlet, the air inlet of the condensing unit are connected with the gas outlet of the dust arrester, the gas outlet of the condensing unit and institute
The air inlet for stating purifier is connected.
7. system according to claim 1, it is characterised in that the purifier includes：Air inlet, gas outlet and pyrolysis
Gas exports, and the air inlet of the purifier is connected with the gas outlet of the condensing unit, the gas outlet of the purifier and
The air inlet of the hot carrier gas synthesizer is connected.
8. system according to claim 1, it is characterised in that the blowing oxygen system includes：Spray gun, control device and
Source of the gas, the control device are connected with the trigger of the spray gun, for controlling the movement and injection of the spray gun, the spray gun
Inflatable end is connected with source of the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608195.7U CN206886687U (en) | 2017-05-27 | 2017-05-27 | A kind of system for producing calcium carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608195.7U CN206886687U (en) | 2017-05-27 | 2017-05-27 | A kind of system for producing calcium carbide |
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| Publication Number | Publication Date |
|---|---|
| CN206886687U true CN206886687U (en) | 2018-01-16 |
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ID=61319416
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720608195.7U Expired - Fee Related CN206886687U (en) | 2017-05-27 | 2017-05-27 | A kind of system for producing calcium carbide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206886687U (en) |
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2017
- 2017-05-27 CN CN201720608195.7U patent/CN206886687U/en not_active Expired - Fee Related
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