CN207792712U - It is a kind of produce calcium carbide melt bath bed - Google Patents
It is a kind of produce calcium carbide melt bath bed Download PDFInfo
- Publication number
- CN207792712U CN207792712U CN201721709143.5U CN201721709143U CN207792712U CN 207792712 U CN207792712 U CN 207792712U CN 201721709143 U CN201721709143 U CN 201721709143U CN 207792712 U CN207792712 U CN 207792712U
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- China
- Prior art keywords
- furnace
- spray gun
- furnace wall
- bath bed
- carbide
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Abstract
The utility model is related to it is a kind of produce calcium carbide melt bath bed.The bath bed that melts includes the burner hearth formed by furnace roof, furnace wall, furnace bottom closing connection, is detachable structure between furnace roof and furnace wall, exhaust outlet is provided on furnace roof, be disposed with spray gun, carbide liquid outlet, molten iron outlet on furnace wall from top to bottom；Spray gun is extended downwardly into via furnace wall in burner hearth, also, the nozzle on spray gun top is located at the top of carbide liquid outlet place plane；Molten iron exports and is provided with induction coil on the furnace wall between carbide liquid outlet, and induction coil is connect with for electric installation.Provided by the utility model to melt bath bed, utilization rate of electrical is higher, and energy consumption is small, and the process for producing calcium carbide can make full use of the not consumable powder material of conventional containment stove, and dust pollution is small, and not will produce noise pollution.
Description
Technical field
The utility model is related to calcium carbide preparation fields, and in particular to it is a kind of produce calcium carbide melt bath bed.
Background technology
The technique of traditional electrothermal way production calcium carbide, which is the thermal energy generated using electric arc, makes carbon raw with lime 1800
Reaction production calcium carbide under~2200 DEG C of temperature conditions.The primary structure of furnace of calcium carbide includes furnace body and electrode, is led to when furnace of calcium carbide works
Electricity generates electric arc, by the high-temperature heating furnace charge that electric arc generates, furnace charge is made to reach the heat needed for chemical reaction.Wherein, electric arc
The region that the high temperature sent out can be applied directly to is located at below electrode tip electric arc operation area or molten bath, the region until stove
Bottom.Traditional furnace of calcium carbide is round three-phase electrode structure, i.e. each of three electrodes are arranged in furnace interior, external furnace body in equilateral triangle
For circle, the shortcomings that this kind of calcium carbide furnace structure, is：Stove inner periphery has that many electric arcs cannot act on or function and effect are excessively poor
Place, i.e., non-molten bath zone so that the temperature in these places is not achieved reaction and requires, and the furnace charge in the region cannot or be difficult hair
Raw reaction, since heat difference in distribution is too big, electric energy effective rate of utilization is only 40~60%, and energy loss is serious, leads to calcium carbide
Stove productivity is low, power consumption is high, and semi-coke consumption is relatively large, of high cost.
Utility model content
In view of the problems existing in the prior art, the utility model be intended to provide it is a kind of produce calcium carbide melt bath bed, Neng Gouti
High utilization rate of electrical reduces energy loss, and dust pollution is small in production process, noise-less pollution.
The utility model provide it is a kind of produce calcium carbide melt bath bed, including formed by furnace roof, furnace wall, furnace bottom closing connection
Burner hearth, be detachable structure between the furnace roof and the furnace wall, be provided with exhaust outlet on the furnace roof, on the furnace wall from
Spray gun, carbide liquid outlet, molten iron outlet are disposed under above；
The spray gun is extended downwardly into via the furnace wall in the burner hearth, also, the nozzle on the spray gun top is located at institute
The top of plane where stating carbide liquid outlet；
Molten iron outlet and the carbide liquid export between furnace wall on be provided with induction coil, the induction coil with
It is connected for electric installation.
Further, the spray gun is provided with multiple, and the multiple spray gun is uniform in the same level of the furnace wall
Arrangement, the nozzle of the multiple spray gun are directed to the center of same level, also, the bearing of the multiple spray gun with
The vertical range of the furnace bottom is the 3/5~1/2 of the furnace height, and the horizontal plane where the nozzle hangs down with the furnace bottom
Straight distance is the 1/2~1/3 of the furnace height.
As the utility model preferred embodiment, the angle between the spray gun and the furnace wall is 35 °~45 °.
Further, the spray gun is provided with 3~6.
As the utility model preferred embodiment, the carbide liquid outlet and the vertical range of the furnace bottom are described
The 2/5~1/4 of furnace height.
Provided by the utility model to melt bath bed for produce calcium carbide, the induction coil using furnace wall outsourcing is in burner hearth
Reaction provides heat, and utilization rate of electrical is higher, and energy consumption is small.Also, the process for melting bath bed production calcium carbide of the utility model can
Make full use of the not consumable powder material of conventional containment stove, dust pollution is small in production process, and not will produce noise dirt
Dye.
Description of the drawings
Fig. 1 is the structural schematic diagram for melting bath bed that the utility model produces calcium carbide.
Fig. 2 is the vertical view that spray gun is distributed in melting bath bed.
Reference numeral in attached drawing is as follows：
1- spray guns, the outlet of 2- carbide liquids, the outlet of 3- induction coils, 4- molten iron, 5- molten iron layer, 6- calcium carbides liquid layer, 7- exhaust
Mouthful.
Specific implementation mode
Below in conjunction with drawings and examples, specific embodiment of the present utility model is described in more details, with
Just the advantages of better understood when the embodiment of the utility model and its various aspects.However, specific implementations described below
Mode and embodiment are for illustrative purposes only, rather than limitations of the present invention.
As shown in Figure 1, the bath bed that melts of production calcium carbide provided by the utility model includes being connected by furnace roof, furnace wall, furnace bottom closing
Connect the burner hearth to be formed.Wherein, it is detachable structure between furnace roof and furnace wall, that is, the bell of furnace roof can be removed from furnace wall.In stove
Exhaust outlet 7 is provided on top, for the gas for reacting generation in burner hearth to be discharged.
It is provided with hydraulic pressure lift and rotating mechanism on furnace roof, material is added into burner hearth convenient for unscrewing bell.
Furnace wall is provided with multilayer, and respectively high-alumina brick, asbestos board, induction coil 3, water cooling tube (do not show in figure from inside to outside
Go out), stainless steel furnace shell (not shown).Wherein, the thickness of each layer is preferably：High-alumina brick 460mm, asbestos board 20mm, induction
Coil 60mm, water cooling pipe diameter 100mm, stainless steel furnace shell 50mm.
Furnace bottom is also equipped with multilayer, from bottom to top respectively lightweight clay brick, high-alumina brick, carbon brick.Wherein, furnace bottom each layer
Thickness is preferably：Lightweight clay brick 195mm, high-alumina brick 195mm, carbon brick 600mm.
When calcium carbide preparation reaction occurs in the burner hearth for melting bath bed, the bottom of burner hearth is molten iron layer 5, the upper layer of molten iron layer 5
For calcium carbide liquid layer 6.Molten iron outlet 4 is arranged in 5 bottom of molten iron layer, that is, is arranged in burner hearth bottom end, and stretch out furnace wall obliquely.Calcium carbide
The bottom in calcium carbide liquid layer 6 is arranged in liquid outlet 2, and stretches out furnace wall obliquely.Preferably, carbide liquid outlet 2 is vertical with furnace bottom
Distance is the 2/5~1/4 of furnace height.Also, carbide liquid outlet 2 and molten iron outlet 4 are all made of corundum mud and compound palm
Corundum brick masonry forms.
As the utility model preferred embodiment, the furnace wall week in 5 region of molten iron layer is arranged in induction coil 3
It encloses, is located at the region between carbide liquid outlet 2 and molten iron outlet 4.Induction coil 3 is connect with for electric installation (not shown),
It powers for induction coil 3 for electric installation.
Melt and is provided with spray gun 1 on the furnace wall of bath bed.Spray gun 1 is extended into via furnace wall in burner hearth.Also, 1 top of spray gun
Nozzle be located at carbide liquid export 2 place planes top.
As the utility model preferred embodiment, the vertical range of bearing and furnace bottom of the spray gun on furnace wall is stove
The 3/5~1/2 of thorax height.The vertical range of horizontal plane and furnace bottom where the nozzle of spray gun is the 1/2~1/3 of furnace height.
Preferably, spray gun 1 is provided with multiple.It is furthermore preferred that there are three the settings of spray gun 1.When setting there are three spray gun when, three
A spray gun is evenly arranged in the same level of furnace wall, and the angle between each two adjacent spray gun is 60 °, as shown in Figure 2.Spray
The nozzle of rifle 1 is directed to the center of same level.According to the difference for melting bath bed-type number, the uniform cloth on furnace wall of spray gun 1
Set 3~6.
The 1 preferred multistage undergauge spray gun of spray gun of the utility model.Between multistage undergauge spray gun and furnace wall vertically downward
Angle control is 35~45 °.The angle of multistage undergauge spray gun and same level radial direction, i.e. swirl angle, control as 0~
20°.When multistage undergauge spray gun is used to be blown premix into burner hearth, swirl angle control is 0~10 °；When non-pre- for being blown
When batch mixing, swirl angle control is 10~20 °, and swirl angle is larger at this time, and the eddy flow of formation can increase the contact surface of non-premix
Product, that is, increase the specific surface area of material reaction.
The utility model additionally provide it is a kind of using it is above-mentioned melt bath bed produce calcium carbide method, include the following steps：
A, furnace roof is opened, scrap iron material is added into burner hearth.
B, it is 3 power transmission of induction coil to start for electric installation, and induction coil 3 is made to heat scrap iron material, and scrap iron material melts to obtain
Molten iron.Scrap iron material is repeatedly added into burner hearth and carries out heating fusing, until obtained molten iron height reaches under carbide liquid outlet 2
End stops that scrap iron material is added, and induction coil 3 continues to heat to molten iron, and power transmission is reduced when molten iron temperature reaches 1800 DEG C
Power, it is 1750~1850 DEG C to keep the temperature of molten iron.Wherein, when scrap iron material being added every time, furnace roof is opened, is closed after charging
Close furnace roof.
C, start spray gun 1, oxygen, coal dust, pulverized limestone and molten iron are sprayed into molten iron, carbide liquid, the electricity of generation is obtained by the reaction
Stone liquid level is in the upper layer of molten iron.Then open carbide liquid outlet 2 discharge carbide liquids, be discharged carbide liquid time interval be 1~
1.5h。
In this step, oxygen, coal dust, pulverized limestone can spray into molten iron via different spray guns in the form of non-premix respectively
In, or after mixing in the form of premix in penetrating molten iron.Wherein, the injection flow control of oxygen be 2000~
3000m3/h.Also, the equal ＜ 1mm of the grain size of coal dust and pulverized limestone, the quality accounting of grain size ＜ 0.074mm in coal dust and pulverized limestone
>=80%.A coal dust part for penetrating, which reacts to prepare to react for calcium carbide with oxygen, provides heat, another part coal dust and quick lime
Powder reaction production carbide liquid.
When using multistage undergauge spray gun and with material is blown in certain angular burner hearth of eddy flow, powder can either be increased
Jet length, and the contact area of oxygen, coal dust and pulverized limestone can be increased, improve production efficiency.
Embodiment
The present embodiment melts in bath bed, and burner hearth internal diameter is 7000mm, is highly 2600mm.Furnace wall is respectively thickness from inside to outside
Spend water cooling tube, the thickness of the high-alumina brick of 460mm, the asbestos board of thickness 20mm, the induction coil of thickness 60mm, diameter 100mm
The stainless steel furnace shell of 50mm.Furnace bottom is respectively the light weight fireclay brick of thickness 195mm, the high-alumina brick of thickness 195mm, thickness from bottom to top
Spend the carbon brick of 600mm.
It is 1000mm that carbide liquid, which is exported with the vertical range of furnace bottom, and it is 600mm that molten iron, which is exported with the vertical range of furnace bottom,.Electricity
Stone liquid exports and molten iron outlet is built by laying bricks or stones by corundum mud and composite brown corundum brick.Induction coil layout is in lower furnace portion
Around the furnace wall of molten iron layer region, i.e., the region between carbide liquid outlet and molten iron outlet.
The vertical range of the nozzle distance furnace bottom of multistage undergauge spray gun is 1300mm.Multistage undergauge spray gun is vertical with furnace wall
Downward angle is 38 °.When being blown premix, the swirl angle of multistage undergauge spray gun is 0 °；When being blown non-premix, swirl angle is
17°。
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And it does not limit the embodiments.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among changes and variations that derived from are still in the scope of protection of the utility model.
Claims (5)
1. it is a kind of produce calcium carbide melt bath bed, include the burner hearth formed by furnace roof, furnace wall, furnace bottom closing connection, which is characterized in that
It is detachable structure between the furnace roof and the furnace wall, is provided with exhaust outlet on the furnace roof, on the furnace wall from top to bottom
It is disposed with spray gun, carbide liquid outlet, molten iron outlet；
The spray gun is extended downwardly into via the furnace wall in the burner hearth, also, the nozzle on the spray gun top is located at the electricity
The top of plane where the outlet of stone liquid；
Induction coil, the induction coil and power supply are provided on furnace wall between the molten iron outlet and carbide liquid outlet
Device connects.
2. according to claim 1 melt bath bed, which is characterized in that the spray gun is provided with multiple, and the multiple spray gun exists
It being evenly arranged in the same level of the furnace wall, the nozzle of the multiple spray gun is directed to the center of same level,
Also, the vertical range of the bearing of the multiple spray gun and the furnace bottom is the 3/5~1/2 of the furnace height, the spray
The vertical range of horizontal plane and the furnace bottom where mouth is the 1/2~1/3 of the furnace height.
3. according to claim 2 melt bath bed, which is characterized in that the angle between the spray gun and the furnace wall is 35 °
~45 °.
4. according to claim 3 melt bath bed, which is characterized in that the spray gun is provided with 3~6.
5. according to claim 1 melt bath bed, which is characterized in that the vertical range of the carbide liquid outlet and the furnace bottom
It is the 2/5~1/4 of the furnace height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709143.5U CN207792712U (en) | 2017-12-11 | 2017-12-11 | It is a kind of produce calcium carbide melt bath bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709143.5U CN207792712U (en) | 2017-12-11 | 2017-12-11 | It is a kind of produce calcium carbide melt bath bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207792712U true CN207792712U (en) | 2018-08-31 |
Family
ID=63283546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721709143.5U Expired - Fee Related CN207792712U (en) | 2017-12-11 | 2017-12-11 | It is a kind of produce calcium carbide melt bath bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207792712U (en) |
-
2017
- 2017-12-11 CN CN201721709143.5U patent/CN207792712U/en not_active Expired - Fee Related
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Effective date of registration: 20190121 Granted publication date: 20180831 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20180831 |
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| 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: 20180831 |