CN206266506U - The system that a kind of calcium carbide is smelted and Coal Gasification is coupled - Google Patents
The system that a kind of calcium carbide is smelted and Coal Gasification is coupled Download PDFInfo
- Publication number
- CN206266506U CN206266506U CN201621367939.2U CN201621367939U CN206266506U CN 206266506 U CN206266506 U CN 206266506U CN 201621367939 U CN201621367939 U CN 201621367939U CN 206266506 U CN206266506 U CN 206266506U
- Authority
- CN
- China
- Prior art keywords
- calcium carbide
- furnace
- gasification
- coal
- entrance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The utility model is related to the system that a kind of calcium carbide is smelted and Coal Gasification is coupled.The system includes the furnace of calcium carbide, acetylene stones sensible heat recover, the gasification furnace that are sequentially connected, furnace of calcium carbide is smelted for calcium carbide, with semi-coke entrance, CaO entrances, the outlet of liquid calcium carbide, acetylene stones sensible heat recover is used for the sensible heat of recovering liquid calcium carbide, with liquid calcium carbide entrance, the outlet of solid-state calcium carbide, water inlet, steam outlet, the connection liquid calcium carbide outlet of liquid calcium carbide entrance, gasification furnace is used for Coal Gasification, with air inlet, coal entrance, gas exit, air inlet connection steam outlet.System of the present utility model can make full use of the sensible heat of the liquid calcium carbide of calcium carbide smelting process generation to produce vapor, for the process that Coal Gasification prepares coal gas provides gasifying agent, realize the recycling of energy.
Description
Technical field
The utility model is related to coal chemical technology, and in particular to the system that a kind of calcium carbide is smelted and Coal Gasification is coupled.
Background technology
At present, in calcium carbide production technology, calcium carbide flows out to calcium carbide in furnace of calcium carbide by more than 2000 DEG C of liquid calcium carbide
In crucible, room temperature then is cooled in nature, a large amount of sensible heats of calcium carbide are not fully used, and cause the very big wave of the energy
Take.
Utility model content
In view of the above problems, the utility model aims to provide the system that a kind of calcium carbide is smelted and Coal Gasification is coupled, and uses
The system can make full use of the liquid acetylene stones sensible heat to carry out Coal Gasification, prepare coal gas.
The utility model provide a kind of calcium carbide smelt and Coal Gasification coupling system, the system include furnace of calcium carbide,
Acetylene stones sensible heat recover, gasification furnace.
The furnace of calcium carbide is smelted for calcium carbide, with semi-coke entrance, CaO entrances, the outlet of liquid calcium carbide.
The acetylene stones sensible heat recover is used to reclaim the sensible heat of the liquid calcium carbide, with liquid calcium carbide entrance, solid-state electricity
Stone outlet, water inlet, steam outlet.The liquid calcium carbide entrance connects the liquid calcium carbide outlet.
The gasification furnace is used for Coal Gasification, with air inlet, coal entrance, gas exit.The air inlet connects institute
State steam outlet.
Further, the furnace of calcium carbide is also exported with calcium carbide furnace gas.
Preferably, the gasification furnace is airflow bed gasification furnace, and there is gasification lime-ash to export for it.
Further, the air inlet of the gasification furnace is one, two or more, for feeding gasifying agent.
The system that calcium carbide disclosed in the utility model is smelted and Coal Gasification is coupled, can make full use of calcium carbide smelting process
The sensible heat of the liquid calcium carbide of generation produces vapor, for the process that Coal Gasification prepares coal gas provides gasifying agent, high degree
Energy consumption is reduced, the recycling of energy is realized.
Brief description of the drawings
Fig. 1 is the system schematic that the utility model calcium carbide is smelted and Coal Gasification is coupled.
Fig. 2 is the schematic flow sheet that the utility model prepares calcium carbide and coal gas using the system coupling shown in Fig. 1.
Reference in accompanying drawing is as follows：
1st, furnace of calcium carbide；2nd, acetylene stones sensible heat recover；3rd, gasification furnace.
Specific embodiment
Below in conjunction with drawings and Examples, specific embodiment of the present utility model is described in more details, with
Just scheme of the present utility model and the advantage of its various aspects be better understood when.However, specific implementations described below
Mode and embodiment are only descriptive purposes, rather than to limitation of the present utility model.
It is that the utility model calcium carbide smelts the system schematic coupled with Coal Gasification such as Fig. 1.As shown in Figure 1, the system
Including the furnace of calcium carbide 1, acetylene stones sensible heat recover 2, the gasification furnace 3 that are sequentially connected.
Furnace of calcium carbide 1 is used for calcium carbide smelting process, and it has semi-coke entrance, CaO entrances, calcium carbide furnace gas outlet, liquid calcium carbide
Outlet.
Acetylene stones sensible heat recover 2 is used for the sensible heat of recovering liquid calcium carbide, and it has liquid calcium carbide entrance, water inlet, solid-state
Calcium carbide outlet, steam outlet.Wherein, liquid calcium carbide entrance is connected with the liquid calcium carbide outlet of furnace of calcium carbide 1.
Gasification furnace 3 prepares coal gas for coal gasification processes, and it has air inlet, coal entrance, the outlet of gasification lime-ash, coal
Gas is exported.Wherein, air inlet is connected with the steam outlet of acetylene stones sensible heat recover 2.
The gasification furnace 3 of the utility model embodiment uses airflow bed gasification furnace.Air inlet therein can for one, two or
Multiple, for sending into gasifying agent in gasification furnace 3.
It is schematic flow sheet that the utility model prepares calcium carbide and coal gas using the system coupling shown in Fig. 1, bag such as Fig. 2
Include following steps：
(1) calcium carbide smelting prepares calcium carbide
Block semi-coke and bulk CaO are sent into furnace of calcium carbide 1 via semi-coke entrance and CaO entrances by quantitative conveyer respectively
In, calcium carbide is carried out at a certain temperature smelts reaction.Under the reaction temperature, semi-coke and CaO reactions can generate liquid calcium carbide, instead
Answer the gas that process is generated to be exported via calcium carbide furnace gas to discharge.
Wherein, particle diameter≤30 ㎜ of block semi-coke, particle diameter≤25 ㎜ of the preferred bulk semi-coke of the utility model embodiment.Should
Moisture content≤the 2wt% of block semi-coke, content of ashes≤12wt%, (wt% is quality percentage to volatile matter content≤1.5wt%
Number).
Particle diameter≤30 ㎜ of block CaO, the utility model embodiment preferably particle diameter≤25 ㎜ of bulk CaO.Also, it is block
In CaO：Content >=the 93wt% of CaO, Al2O3Content≤the 1wt% of≤1wt%, MgO, SiO2Content≤1wt%.
It is 0.5 to the block semi-coke and the mass ratio of bulk CaO that are added in furnace of calcium carbide 1 in the step：1~1：1, the ratio
Example can be controlled by quantitative conveyer.Preferred mass ratio in the utility model embodiment is 0.65：1.
The temperature that calcium carbide smelts reaction is 1900~2200 DEG C, and preferable reaction temperature is 2100 in the utility model embodiment
℃。
(2) liquid acetylene stones sensible heat is reclaimed and obtains vapor
The liquid calcium carbide of above-mentioned steps generation is sent into acetylene stones sensible heat recover 2 via liquid calcium carbide entrance, the condition of high temperature
Liquid calcium carbide with via water inlet add H2O carries out indirect heat exchange so that liquid H2O heats up and becomes vapor.
(3) Coal Gasification prepares coal gas
The vapor that above-mentioned steps are obtained as gasifying agent one of which component via air inlet feeding gasification furnace 3 in,
Gasifying agent also includes O2、CO2In one or two.During gasifying agent can be by same air inlet feeding gasification furnace 3, can be by not yet
In same air inlet feeding gasification furnace 3.Also, via coal entrance to sending into coal in gasification furnace 3.In certain temperature and pressure
Under power, there is gasification reaction in coal and gasifying agent, prepare coal gas in gasification furnace 3.
The above-mentioned O as gasifying agent2、CO2Purity be respectively：O2In pure O2Volume fraction be 99.999%；CO2In it is pure
CO2Volume fraction be 99.999%.
The coal that the utility model is used is middle low order coal dust, its particle diameter≤0.5 ㎜, preferable particle size≤0.1 in embodiment
㎜.Also, moisture content≤the 8wt% of coal, content of ashes≤15wt%, ash fusion point≤1200 DEG C.
The gasification reaction temperature of the step is 1200~2000 DEG C, and preferable temperature is 1600 DEG C in embodiment.Gasification reaction
Pressure can allow the pressure that reaches by any gasification furnace 3.
When carrying out gasification reaction, vapor accounts for the percentage≤65wt% of coal, preferably≤55wt% in embodiment.O2Account for
Percentage≤the 25wt% of coal, preferably≤15wt% in embodiment.
Embodiment 1
Block semi-coke and bulk CaO are pressed 1：1 quality proportioning is added in furnace of calcium carbide.Wherein, block semi-coke is aqueous
Rate is 2%, and content of ashes is 12%, and particle diameter is 3-30mm.In block CaO：The content of CaO is 93%, Al2O3Content be
The content of 1%, MgO is 1%, SiO2Content be 1%, particle diameter is 5-30mm.Block semi-coke and temperature of the bulk CaO at 2200 DEG C
Calcium carbide is carried out under degree and smelts reaction, generate liquid calcium carbide.By liquid calcium carbide send into acetylene stones sensible heat recover in, with the H being passed through2O
Abundant indirect heat exchange is carried out, vapor is generated.Vapor and O2It is passed into gasification furnace as gasifying agent via air inlet, with coal
Powder carries out gasification reaction in gasification furnace, generates coal gas.Wherein particle diameter≤the 0.5mm of coal dust, moisture content is 8%, content of ashes
It is 14%, ash fusion point is 1200 DEG C.The temperature of gasification reaction is 2000 DEG C, and vapor is 0.65 with the quality proportioning of coal dust：1,
O2It is 0.25 with the quality proportioning of coal dust：1.
Embodiment 2
Block semi-coke and bulk CaO are pressed 0.65：1 quality proportioning is added in furnace of calcium carbide.Wherein, block semi-coke contains
Water rate is 1.5%, and content of ashes is 10%, and particle diameter is 3-25mm.In block CaO：The content of CaO is 98%, Al2O3Content
The content for being 0.8%, MgO is 0.2%, SiO2Content be 0.4%, particle diameter is 5-25mm.Block semi-coke and bulk CaO exist
Calcium carbide is carried out at a temperature of 2100 DEG C and smelts reaction, generate liquid calcium carbide.By liquid calcium carbide send into acetylene stones sensible heat recover in, with
The H being passed through2O carries out abundant indirect heat exchange, generates vapor.Vapor and O2Via air inlet gasification is passed into as gasifying agent
In stove, gasification reaction is carried out in gasification furnace with coal dust, generate coal gas.Wherein particle diameter≤the 0.1mm of coal dust, moisture content is 3%,
Content of ashes is 11%, and ash fusion point is 1150 DEG C.The temperature of gasification reaction is 1600 DEG C, and vapor is with the quality proportioning of coal dust
0.55：1, O2It is 0.15 with the quality proportioning of coal dust：1.
Embodiment 3
Block semi-coke and bulk CaO are pressed 0.55：1 quality proportioning is added in furnace of calcium carbide.Wherein, block semi-coke contains
Water rate is 1.3%, and content of ashes is 7%, and particle diameter is 3-20mm.In block CaO：The content of CaO is 95%, Al2O3Content be
The content of 0.6%, MgO is 0.3%, SiO2Content be 0.1%, particle diameter is 5-20mm.Block semi-coke and bulk CaO are 1900
Calcium carbide is carried out at a temperature of DEG C and smelts reaction, generate liquid calcium carbide.During liquid calcium carbide sent into acetylene stones sensible heat recover, and it is passed through
H2O carries out abundant indirect heat exchange, generates vapor.Vapor and O2And CO2Via air inlet gasification is passed into as gasifying agent
In stove, gasification reaction is carried out in gasification furnace with coal dust, generate coal gas.Wherein particle diameter≤the 0.3mm of coal dust, moisture content is 6%,
Content of ashes is 14%, and ash fusion point is 1180 DEG C.The temperature of gasification reaction is 1700 DEG C, and vapor is with quality of pc proportioning
0.55：1, O2It is 0.20 with the quality proportioning of coal dust：1, CO2It is 0.20 with the quality proportioning of coal dust：1.
Embodiment 4
Block semi-coke and bulk CaO are pressed 0.60：1 quality proportioning is added in furnace of calcium carbide.Wherein, block semi-coke contains
Water rate is 1.6%, and content of ashes is 9%, and particle diameter is 3-28mm.In block CaO：The content of CaO is 93%, Al2O3Content be
The content of 0.9%, MgO is 0.7%, SiO2Content be 0.3%, particle diameter is 5-26mm.Block semi-coke and bulk CaO are 2000
Calcium carbide is carried out at a temperature of DEG C and smelts reaction, generate liquid calcium carbide.During liquid calcium carbide sent into acetylene stones sensible heat recover, and it is passed through
H2O carries out abundant indirect heat exchange, generates vapor.Vapor and CO2Via air inlet gasification furnace is passed into as gasifying agent
In, gasification reaction is carried out in gasification furnace with coal dust, generate coal gas.Wherein particle diameter≤the 0.2mm of coal dust, moisture content is 7%, ash
Content is divided to be 13%, ash fusion point is 1050 DEG C.The temperature of gasification reaction is 1200 DEG C, and vapor is with the quality proportioning of coal dust
0.50：1, CO2It is 0.25 with the quality proportioning of coal dust：1.
Percentage in above-described embodiment is mass percent.
Can be drawn by above-described embodiment, system of the present utility model can make full use of the liquid that calcium carbide smelting process is generated
The sensible heat of state calcium carbide produces vapor, for the process that Coal Gasification prepares coal gas provides gasifying agent, while preparing calcium carbide and coal gas.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And not to the restriction of implementation method.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.And thus
Among the obvious change or variation amplified out are still in protection domain of the present utility model.
Claims (4)
1. the system that a kind of calcium carbide is smelted and Coal Gasification is coupled, it is characterised in that the system includes furnace of calcium carbide, acetylene stones sensible heat
Recover, gasification furnace；
The furnace of calcium carbide is smelted for calcium carbide, with semi-coke entrance, CaO entrances, the outlet of liquid calcium carbide；
The acetylene stones sensible heat recover is used to reclaim the sensible heat of the liquid calcium carbide, goes out with liquid calcium carbide entrance, solid-state calcium carbide
Mouth, water inlet, steam outlet；The liquid calcium carbide entrance connects the liquid calcium carbide outlet；
The gasification furnace is used for Coal Gasification, with air inlet, coal entrance, gas exit；The air inlet connects the water
Vapor outlet port.
2. system according to claim 1, it is characterised in that the furnace of calcium carbide is also exported with calcium carbide furnace gas.
3. system according to claim 1, it is characterised in that the gasification furnace is airflow bed gasification furnace, and it has gasification
Lime-ash is exported.
4. system according to claim 1, it is characterised in that the air inlet of the gasification furnace is, two or more
It is individual, for feeding gasifying agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367939.2U CN206266506U (en) | 2016-12-13 | 2016-12-13 | The system that a kind of calcium carbide is smelted and Coal Gasification is coupled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367939.2U CN206266506U (en) | 2016-12-13 | 2016-12-13 | The system that a kind of calcium carbide is smelted and Coal Gasification is coupled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206266506U true CN206266506U (en) | 2017-06-20 |
Family
ID=59045375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621367939.2U Expired - Fee Related CN206266506U (en) | 2016-12-13 | 2016-12-13 | The system that a kind of calcium carbide is smelted and Coal Gasification is coupled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206266506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497603A (en) * | 2016-12-13 | 2017-03-15 | 神雾环保技术股份有限公司 | The system and method that a kind of calcium carbide is smelted and Coal Gasification is coupled |
-
2016
- 2016-12-13 CN CN201621367939.2U patent/CN206266506U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497603A (en) * | 2016-12-13 | 2017-03-15 | 神雾环保技术股份有限公司 | The system and method that a kind of calcium carbide is smelted and Coal Gasification is coupled |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104070172B (en) | A kind of preparation method of spherical chromium powder | |
| CN104296540A (en) | High-temperature material heat recycling system and working method thereof | |
| CN103496702A (en) | Production device for coproduction of calcium carbide by electrothermal method and oxygen thermal method | |
| CN100491505C (en) | Air-flow bed coal-gasification solid-state dreg-discharging method | |
| CN103303900B (en) | Production device of semi-coke and lime co-produced calcium carbide | |
| CN106148684A (en) | The method and system of comprehensive utilization red mud | |
| CN206266506U (en) | The system that a kind of calcium carbide is smelted and Coal Gasification is coupled | |
| CN104843707A (en) | Calcium carbide furnace and method for manufacturing calcium carbide by utilization of calcium carbide furnace | |
| CN107022659B (en) | The exhaust heat stepped recycling system of high-temperature slag | |
| CN104776412B (en) | A kind of high temperature superfine powder heat recovery boiler | |
| CN104911334B (en) | A kind of system and method for high-grade dioxide ore for manganese fluidized reduction | |
| CN106497603A (en) | The system and method that a kind of calcium carbide is smelted and Coal Gasification is coupled | |
| CN103708459A (en) | Method for preparing calcium carbide | |
| CN203286904U (en) | Direct reduction smelting ferronickel waste heat power generation system of rotary kiln | |
| CN109797280A (en) | The low zinc gray dangerous waste object cogeneration of steel is used for the method and system of electrolytic zinc production | |
| CN101831516A (en) | Steel slag dry processing device and method | |
| CN212457988U (en) | Submerged arc furnace and furnace gas and waste heat recycling system of furnace body matched with submerged arc furnace | |
| CN205175101U (en) | Energy -conserving formula melting furnace | |
| CN107720805B (en) | A kind of non-equilibrium oxidizing process of metallic zinc prepares the device of nano zine oxide | |
| CN201772763U (en) | High-temperature slag waste heat reclaiming system | |
| CN109848430A (en) | A kind of technique preparing Titanium using titanium dioxide | |
| CN205907333U (en) | System for handle zinc leaching residue | |
| CN108486304B (en) | A kind of coal gasification heating gas is directly used in the device and method of gas-based shaft kiln production direct reduced iron | |
| CN104033892A (en) | Oxygen-enriched combustion method of volatilization klin | |
| CN204174259U (en) | A kind of extracting through microwave heating zinc oxide production unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20181213 |