CN108910886A - A kind of electrothermal way furnace of calcium carbide production technology - Google Patents
A kind of electrothermal way furnace of calcium carbide production technology Download PDFInfo
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- CN108910886A CN108910886A CN201810774780.3A CN201810774780A CN108910886A CN 108910886 A CN108910886 A CN 108910886A CN 201810774780 A CN201810774780 A CN 201810774780A CN 108910886 A CN108910886 A CN 108910886A
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- calcium carbide
- furnace
- raw material
- production technology
- electrothermal way
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/942—Calcium carbide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention discloses a kind of electrothermal way furnace of calcium carbide production technologies, include the following steps：First, it is delivered in furnace of calcium carbide after calcined limestone, gypsum and carbon raw material are mixed to form mixed raw material by reaction ratio；Second, it is powered to the furnace of calcium carbide, addition combustion adjuvant is heated to reaction temperature, and mixture generates melting calcium carbide by the resistance thermal response of electrode arc pad and furnace charge in electric furnace；Third says that the melting calcium carbide of generation is pulled to cooling chamber with kiln car pusher in calcium carbide pot and is cooled down, and after melting calcium carbide solidification, forms calcium carbide lump, hangs out calcium carbide stone roller with the tool that hangs out, is placed on cast iron ground cooling；4th, it is cooled to after appropriateness and calcium carbide lump is crushed to release mesh, then obtain qualified finished product calcium carbide.Compared with traditional electrothermal way and oxygen thermal method calcium carbide production technology, calcium carbide production technology of the invention has the advantages that environmental-friendly, energy-saving the present invention；Simultaneously by the control of process conditions, the calcium carbide purity made is higher, and quality is more preferable, and efficiency is faster.
Description
Technical field
The present invention relates to calcium carbide chemical production field, specifically a kind of electrothermal way furnace of calcium carbide production technology.
Background technique
Calcium carbide scientific name calcium carbide, industrial goods gray, yellowish-brown or black are higher purple containing calcium carbide.Its new wound
Section is glossy, absorbs moisture gray or canescence in air.Can be conductive, purity is higher, and electric conductivity is mainly used for better
Acetylene gas is produced, " mother of organic synthesis industry " was once referred to as.Acetylene is important industrial chemicals, mainly for the production of polychlorostyrene second
Alkenyl and vinyl acetate base product, the raw materials for production acetylene of China's PVC product 70% is from calcium carbide, economy of the calcium carbide to China
Development has a very important role, and yield in the recent decade constantly increases, and 2013 annual outputs are up to 22,000,000 tons or more.
However, current furnace of calcium carbide and preparation production technology still has much room for improvement, energy consumption is big, and generally endangers to environment
Evil is big, and not high for the calcium carbide calcium carbide purity of production in the prior art, quality is not high, containing a large amount of other impurity, low efficiency,
It is not able to satisfy the market demand, it is anxious to be modified.
Summary of the invention
The purpose of the present invention is to provide a kind of electrothermal way furnace of calcium carbide production technologies, with traditional electrothermal way and oxygen thermal method calcium carbide
Production technology is compared, and calcium carbide production technology of the invention has the advantages that environmental-friendly, energy-saving；Pass through process conditions simultaneously
Control, the calcium carbide purity made is higher, and quality is more preferable, and efficiency faster, solves above-mentioned technological deficiency.
To achieve the above object, the present invention provides the following technical solutions：
A kind of electrothermal way furnace of calcium carbide production technology, includes the following steps：
First, furnace of calcium carbide is delivered to after calcined limestone, gypsum and carbon raw material are mixed to form mixed raw material by reaction ratio
It is interior；
Second, it is powered to the furnace of calcium carbide, addition combustion adjuvant is heated to reaction temperature, and mixture passes through electrode arc in electric furnace
The resistance thermal response of pad and furnace charge generates melting calcium carbide；
Third says that the melting calcium carbide of generation is pulled to cooling chamber with kiln car pusher in calcium carbide pot and is cooled down, after melting calcium carbide solidification,
Calcium carbide lump is formed, calcium carbide stone roller is hung out with the tool that hangs out, is placed on cast iron ground cooling；
4th, it is cooled to after appropriateness and calcium carbide lump is crushed to release mesh, then obtain qualified finished product calcium carbide.
As the further preferred of this programme, in the step 1, carbon raw material is by high-temperature coal and petroleum coke according to weight
Proportion is 4~9：7~15 compositions.
As the further preferred of this programme, in the step 2, lime stone, quick lime and carbon raw material in mixed raw material
Mass ratio be 10~20：5~8：4~12.
As the further preferred of this programme, reaction temperature is 1850~2150 DEG C in the step 2.
As the further preferred of this programme, in the step 3, the tool that hangs out is overhead crane and single armful of pincers.
As the further preferred of this programme, before the mixing of the calcined limestone, gypsum and carbon raw material, to described
Lime stone carries out high-temperature calcination, wherein the temperature of high-temperature calcination is controlled at 900~1000 DEG C.
As the further preferred of this programme, before the mixing of the calcined limestone, gypsum and carbon raw material, to described
Calcined limestone, gypsum and carbon raw material carry out crushing and screening, wherein the granularity control of calcined limestone, gypsum 5~
10mm, carbon raw material granularity are controlled in 10mm~20mm.
As the further preferred of this programme, in the step 2 combustion adjuvant be ammonium acetate, citric acid, urea according to 1：
3：4 compositions.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of electrothermal way furnace of calcium carbide production technology of the present invention, raw material mixture are made of calcined limestone, gypsum and carbon raw material,
Wherein, high-temperature calcination is passed through before calcined limestone mixing, and is carried out brokenly before being mixed to calcined limestone, gypsum and carbon raw material
Broken screening, wherein in 5~10mm, carbon raw material granularity is controlled in 10mm~20mm for the granularity control of calcined limestone, gypsum,
It compared to conventional method, is controlled by conditions such as temperature and granularities, and adds combustion adjuvant before high-temperature heating, be reaction temperature
More stable, reaction process is stronger, so that the calcium carbide purity arrived is higher, quality is more preferable, and efficiency is faster.
Meanwhile the present invention is compared with traditional electrothermal way and oxygen thermal method calcium carbide production technology, calcium carbide production technology of the invention
With environmental-friendly, energy-saving remarkable advantage.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
A kind of electrothermal way furnace of calcium carbide production technology, includes the following steps：
First, furnace of calcium carbide is delivered to after calcined limestone, gypsum and carbon raw material are mixed to form mixed raw material by reaction ratio
It is interior；
Second, it is powered to the furnace of calcium carbide, addition combustion adjuvant is heated to reaction temperature, and mixture passes through electrode arc in electric furnace
The resistance thermal response of pad and furnace charge generates melting calcium carbide；
Third says that the melting calcium carbide of generation is pulled to cooling chamber with kiln car pusher in calcium carbide pot and is cooled down, after melting calcium carbide solidification,
Calcium carbide lump is formed, calcium carbide stone roller is hung out with the tool that hangs out, is placed on cast iron ground cooling；
4th, it is cooled to after appropriateness and calcium carbide lump is crushed to release mesh, then obtain qualified finished product calcium carbide.
Further preferably, in the step 1, carbon raw material is 7 by high-temperature coal and petroleum coke according to the weight ratio：11 groups
At.
Further preferably, in the step 2, the mass ratio of lime stone, quick lime and carbon raw material is in mixed raw material
15：7：8.
Further preferably, reaction temperature is 2000 DEG C in the step 2.
Further preferably, in the step 3, the tool that hangs out is overhead crane and single armful of pincers.
Further preferably, before the mixing of the calcined limestone, gypsum and carbon raw material, the lime stone is carried out high
Temperature calcining, wherein the temperature of high-temperature calcination is controlled at 960 DEG C.
Further preferably, the calcined limestone, gypsum and carbon raw material mixing before, to the calcined limestone,
Gypsum and carbon raw material carry out crushing and screening, wherein the granularity control of calcined limestone, gypsum is in 8mm, carbon raw material granularity control
System is in 16mm.
Further preferably, in the step 2 combustion adjuvant be ammonium acetate, citric acid, urea according to 1：3：4 compositions.
In a kind of electrothermal way furnace of calcium carbide production technology of the present invention, raw material mixture is by calcined limestone, gypsum and carbon containing original
Material composition, wherein pass through high-temperature calcination before calcined limestone mixing, and calcined limestone, gypsum and carbon raw material are mixed
Preceding carry out crushing and screening, wherein in 5~10mm, carbon raw material granularity is controlled in 10mm for the granularity control of calcined limestone, gypsum
~20mm is controlled compared to conventional method by conditions such as temperature and granularities, and combustion adjuvant is added before high-temperature heating, is
Reaction temperature is more stable, and reaction process is stronger, so that the calcium carbide purity arrived is higher, quality is more preferable, and efficiency is faster.
Meanwhile the present invention is compared with traditional electrothermal way and oxygen thermal method calcium carbide production technology, calcium carbide production technology of the invention
With environmental-friendly, energy-saving remarkable advantage.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (8)
1. a kind of electrothermal way furnace of calcium carbide production technology, which is characterized in that include the following steps：
First, furnace of calcium carbide is delivered to after calcined limestone, gypsum and carbon raw material are mixed to form mixed raw material by reaction ratio
It is interior；
Second, it is powered to the furnace of calcium carbide, addition combustion adjuvant is heated to reaction temperature, and mixture passes through electrode arc in electric furnace
The resistance thermal response of pad and furnace charge generates melting calcium carbide；
Third says that the melting calcium carbide of generation is pulled to cooling chamber with kiln car pusher in calcium carbide pot and is cooled down, after melting calcium carbide solidification,
Calcium carbide lump is formed, calcium carbide stone roller is hung out with the tool that hangs out, is placed on cast iron ground cooling；
4th, it is cooled to after appropriateness and calcium carbide lump is crushed to release mesh, then obtain qualified finished product calcium carbide.
2. a kind of electrothermal way furnace of calcium carbide production technology according to claim 1, it is characterised in that：It is carbon containing in the step 1
Raw material is 4~9 by high-temperature coal and petroleum coke according to the weight ratio：7~15 compositions.
3. a kind of electrothermal way furnace of calcium carbide production technology according to claim 1, it is characterised in that：In the step 2, mixing
The mass ratio of lime stone, quick lime and carbon raw material is 10~20 in raw material：5~8：4~12.
4. a kind of electrothermal way furnace of calcium carbide production technology according to claim 1, it is characterised in that：Temperature is reacted in the step 2
Degree is 1850~2150 DEG C.
5. a kind of electrothermal way furnace of calcium carbide production technology according to claim 1, it is characterised in that：In the step 3, hang out
Tool is overhead crane and single armful of pincers.
6. a kind of preparation method of electrothermal way furnace of calcium carbide production technology according to claim 1, it is characterised in that：Described
Before calcined limestone, gypsum and carbon raw material mixing, high-temperature calcination is carried out to the lime stone, wherein the temperature of high-temperature calcination
Degree control is at 900~1000 DEG C.
7. a kind of preparation method of electrothermal way furnace of calcium carbide production technology according to claim 1, it is characterised in that：Described
Before calcined limestone, gypsum and carbon raw material mixing, broken sieve is carried out to the calcined limestone, gypsum and carbon raw material
Point, wherein in 5~10mm, carbon raw material granularity is controlled in 10mm~20mm for the granularity control of calcined limestone, gypsum.
8. a kind of preparation method of electrothermal way furnace of calcium carbide production technology according to claim 1, it is characterised in that：The step
In rapid two combustion adjuvant be ammonium acetate, citric acid, urea according to 1：3：4 compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774780.3A CN108910886A (en) | 2018-07-16 | 2018-07-16 | A kind of electrothermal way furnace of calcium carbide production technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810774780.3A CN108910886A (en) | 2018-07-16 | 2018-07-16 | A kind of electrothermal way furnace of calcium carbide production technology |
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|---|---|
| CN108910886A true CN108910886A (en) | 2018-11-30 |
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ID=64411813
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810774780.3A Withdrawn CN108910886A (en) | 2018-07-16 | 2018-07-16 | A kind of electrothermal way furnace of calcium carbide production technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753898A (en) * | 2021-08-19 | 2021-12-07 | 首钢集团有限公司 | Method for improving purity of calcium carbide |
-
2018
- 2018-07-16 CN CN201810774780.3A patent/CN108910886A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753898A (en) * | 2021-08-19 | 2021-12-07 | 首钢集团有限公司 | Method for improving purity of calcium carbide |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181130 |
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| WW01 | Invention patent application withdrawn after publication |