CN103101953B - Equipment for producing calcium oxide by using gypsum - Google Patents
Equipment for producing calcium oxide by using gypsum Download PDFInfo
- Publication number
- CN103101953B CN103101953B CN201210579292.XA CN201210579292A CN103101953B CN 103101953 B CN103101953 B CN 103101953B CN 201210579292 A CN201210579292 A CN 201210579292A CN 103101953 B CN103101953 B CN 103101953B
- Authority
- CN
- China
- Prior art keywords
- reaction chamber
- calcium oxide
- gypsum
- feeding cylinder
- equipment
- 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.)
- Active
Links
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000000292 calcium oxide Substances 0.000 title claims abstract description 26
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000010440 gypsum Substances 0.000 title claims abstract description 21
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005997 Calcium carbide Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention relates to equipment for producing calcium oxide by using gypsum. The equipment comprises a feeding cylinder provided with a hopper, a reaction chamber and a tail gas absorption cell, wherein a plunger piston which can move in a reciprocating manner is arranged in the feeding cylinder, the discharging hole of the feeding cylinder is directly connected with the feeding hole of the reaction chamber, a discharge hole is formed at the tail end of the reaction chamber, a vacuum air outlet is formed at a position, which is close to the lower side of the discharging hole, of the reaction chamber, and the vacuum air outlet is connected with the tail gas absorption cell through a pipeline provided with a vacuum pump; and a microwave generator is arranged at the outer side of the reaction chamber. According to the equipment for producing calcium oxide by using gypsum, materials are uniformly heated, so that a good heating effect is achieved, no secondary impurity is introduced in the whole process, waste gases, such as SO3 and SO2 are almost completely absorbed, and no environment pollution is caused; and the purity of calcium oxide product is up to more than 80 percent by weight.
Description
Technical field
The present invention relates to a kind of equipment producing calcium oxide, especially relate to a kind of equipment utilizing gypsum to produce calcium oxide.
Background technology
Calcium oxide is widely used in and manufactures calcium carbide, soda ash, chlorinated lime, as refractory materials, siccative and soil improvement agent; As analytical reagent, the fusing assistant manufacturing fluorescent material; For process hides, purification of waste water; As material of construction, metallurgical fusing assistant; It is the main raw material of hydrogen manufacturing calcium oxide and various calcium cpd.
Traditional calcium oxide production method is mainly raw material with Wingdale, and calcining process adopts shaft furnace, Wingdale and solid fuel is mixed or layering loads in kiln and calcines, finally remainder be calcium oxide product.The equipment volume that this production method needs is large, and also easily introduce secondary impurities, environmental pollution is also larger.The calcium oxide purity of producing is also lower, can not meet the user demand of some field to high-purity calcium oxide.
Chinese invention patent application 200810064141.4 discloses one with high purity marble for raw material, with the calcium oxide production method that gas or solid fuel are thermal source, decrease the introducing of new impurity to a certain extent, substantially cleaner production is reached, but this production technique is wayward, production cost is higher, and starting material itself are also containing a certain amount of impurity, cannot remove by this method.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiencies in the prior art, and provide a kind of introducing impurity less, energy consumption is lower, and the gypsum that production efficiency is higher produces the equipment of calcium oxide.
The technical scheme that the present invention solves the employing of its technical problem is:
A kind of gypsum produces the equipment of calcium oxide, comprise feeding cylinder, reaction chamber, the exhaust gas absorption cell with hopper, the plunger that can back and forth run is provided with in described feeding cylinder, the discharge port of described feeding cylinder is directly connected with the opening for feed of reaction chamber, the end of described reaction chamber is provided with discharge port, reaction chamber is provided with vaccum exhaust outlet near the below of discharge port, and vaccum exhaust outlet is connected with exhaust gas absorption cell by the pipeline being provided with vacuum pump; Microwave generator is provided with outside reaction chamber.
Working process:
Powder gypsum is added in material bin, powder gypsum falls in feeding cylinder from hopper lower part outlet, plunger runs back and forth in feeding cylinder, powder gypsum is sent into reaction chamber, under the microwave action of the microwave generator of powder gypsum outside reaction chamber, be heated to 800-2000 DEG C equably rapidly, gypsum generation dehydration reaction, slough crystal water, there is decomposition reaction again, generate calcium oxide, sulfurous gas and oxygen, the mixed gas of sulfurous gas and oxygen etc. is under the effect of vacuum pump, extracted out by vaccum exhaust outlet and import exhaust gas absorption cell, the obnoxious flavoures such as sulfurous gas are absorbed, unabsorbed innocuous gas is discharged in environment, after completion of the reaction, restart plunger work, make the plunger in feeding cylinder enter in reaction chamber, under the positive action of plunger, the product calcium oxide in reaction chamber is discharged by the discharge port of reaction chamber.
Adopt the gypsum of the present invention to produce the equipment of calcium oxide, material is heated evenly, and heats is good, and whole process does not introduce secondary impurities, waste gas SO
3, SO
2almost be completely absorbed, can not produce environmental pollution, calcium oxide product purity is up to more than 80wt%.
Accompanying drawing explanation
Fig. 1 is the structural representation that gypsum of the present invention produces the apparatus embodiments of calcium oxide.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
With reference to accompanying drawing, the present embodiment comprises feeding cylinder 3, reaction chamber 5, exhaust gas absorption cell 8 with hopper 2, is provided with the plunger 1 that can back and forth run in described feeding cylinder 3; The discharge port of described feeding cylinder 3 is directly connected with the opening for feed of reaction chamber 5, the end of described reaction chamber 5 is provided with discharge port 9, reaction chamber 5 is provided with vaccum exhaust outlet 6 near the below of discharge port 9, and vaccum exhaust outlet 6 is connected with exhaust gas absorption cell 8 by the pipeline being provided with vacuum pump 7; Microwave generator 4 is provided with outside reaction chamber 5.
Working process:
Powder gypsum is added in material bin 2, powder gypsum falls in feeding cylinder 3 from hopper 2 lower part outlet, plunger 1 runs back and forth in feeding cylinder 3, powder gypsum is sent into reaction chamber 5, under the microwave action of the microwave generator 4 of powder gypsum outside reaction chamber 5, be heated to 1200 DEG C equably rapidly, gypsum generation dehydration reaction, slough crystal water, there is decomposition reaction again, generate calcium oxide, sulfurous gas and oxygen, the mixed gas of sulfurous gas and oxygen etc. is under the effect of vacuum pump 7, extracted out by vaccum exhaust outlet 6 and import exhaust gas absorption cell 8, the obnoxious flavoures such as sulfurous gas are absorbed, unabsorbed innocuous gas is discharged in environment, after completion of the reaction, restart plunger 1 and work, make the plunger 1 in feeding cylinder 3 enter in reaction chamber 5, under the positive action of plunger 1, the product calcium oxide in reaction chamber 5 is discharged by the discharge port 9 of reaction chamber 5.
Adopt the gypsum of the present invention to produce the equipment of calcium oxide, material is heated evenly, and heats is good, and whole process does not introduce secondary impurities, waste gas SO
3, SO
2almost be completely absorbed, can not produce environmental pollution, calcium oxide product purity is up to more than 80wt%.
Claims (1)
1. the equipment of a gypsum production calcium oxide, it is characterized in that, comprise feeding cylinder, reaction chamber, the exhaust gas absorption cell with hopper, the plunger that can back and forth run is provided with in described feeding cylinder, the discharge port of described feeding cylinder is directly connected with the opening for feed of reaction chamber, the end of described reaction chamber is provided with discharge port, and reaction chamber is provided with vaccum exhaust outlet near the below of discharge port, and vaccum exhaust outlet is connected with exhaust gas absorption cell by the pipeline being provided with vacuum pump; Microwave generator is provided with outside reaction chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579292.XA CN103101953B (en) | 2012-12-28 | 2012-12-28 | Equipment for producing calcium oxide by using gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579292.XA CN103101953B (en) | 2012-12-28 | 2012-12-28 | Equipment for producing calcium oxide by using gypsum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103101953A CN103101953A (en) | 2013-05-15 |
| CN103101953B true CN103101953B (en) | 2014-12-24 |
Family
ID=48310198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210579292.XA Active CN103101953B (en) | 2012-12-28 | 2012-12-28 | Equipment for producing calcium oxide by using gypsum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103101953B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986279B (en) * | 2017-12-22 | 2023-03-10 | 中国科学院上海高等研究院 | Microwave calcium carbide furnace reactor and method for preparing calcium carbide by using same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US452683A (en) * | 1891-05-19 | Music-holder | ||
| CN1157272A (en) * | 1996-12-20 | 1997-08-20 | 韦和时 | Process for preparing active lime and its after-treatment device |
| CN101602518A (en) * | 2009-07-21 | 2009-12-16 | 中国石化集团南京设计院 | A kind of production technique of utilizing phosphogypsum to decompose preparation calcium oxide and sulfurous gas |
| CN203128216U (en) * | 2012-12-28 | 2013-08-14 | 刘立文 | Device for producing calcium oxide from gypsum |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6096525A (en) * | 1983-07-07 | 1985-05-30 | Nichiro Gyogyo Kk | Porous calcium oxide made of crab shell |
-
2012
- 2012-12-28 CN CN201210579292.XA patent/CN103101953B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US452683A (en) * | 1891-05-19 | Music-holder | ||
| CN1157272A (en) * | 1996-12-20 | 1997-08-20 | 韦和时 | Process for preparing active lime and its after-treatment device |
| CN101602518A (en) * | 2009-07-21 | 2009-12-16 | 中国石化集团南京设计院 | A kind of production technique of utilizing phosphogypsum to decompose preparation calcium oxide and sulfurous gas |
| CN203128216U (en) * | 2012-12-28 | 2013-08-14 | 刘立文 | Device for producing calcium oxide from gypsum |
Non-Patent Citations (1)
| Title |
|---|
| JP昭60-96525A 1985.05.30 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103101953A (en) | 2013-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105347706B (en) | Autogenously-pulverizable low calcium cement, and making method of prefabricated products thereof | |
| CN102728339B (en) | Porous inorganic ceramic membrane-graphene-TiO2 photocatalyst composite material and its preparation method | |
| CN105439613A (en) | Production method for preparing sintering thermal insulation brick from sludge | |
| CN102531423A (en) | Method for producing cement clinker by utilizing red mud | |
| CN112744793A (en) | Thermal cracking system device for decomposing gypsum by adopting superheated steam and thermal cracking method thereof | |
| CN100453489C (en) | Dry cement clinker producing process with carbide residue to replace limy material | |
| CN103736440B (en) | A kind of method preparing activated silica adsorbing material for raw material with coal base solid waste | |
| CN102285677B (en) | Method for producing calcium chloride based on carbide slag as raw material | |
| CN103101953B (en) | Equipment for producing calcium oxide by using gypsum | |
| CN102795773B (en) | Method for preparing glass ceramic through compounding white clay and fly ash | |
| CN109910158A (en) | Utilize the method and production line of municipal sludge production lightweight assembled wallboard | |
| CN203128216U (en) | Device for producing calcium oxide from gypsum | |
| CN105693115A (en) | Calcium oxide efficient calcining furnace | |
| CN202038951U (en) | System for comprehensively utilizing sludge pretreatment and cement kiln | |
| CN201634430U (en) | Electric forging furnace for producing broken artificial graphite | |
| CN101096732A (en) | Magnesium and magnesium alloy resource circulatory utilization system | |
| CN104891915A (en) | Method for preparing aerated brick from waste paper | |
| CN203128218U (en) | Equipment for producing calcium oxide with calcium sulfate | |
| CN205332790U (en) | Lepidolite ore deposit looks roller kilns for reconsitution | |
| CN103058247B (en) | Equipment and technology for producing calcium oxide by using calcium sulfate | |
| CN203128217U (en) | Device for producing calcium oxide by utilizing gypsum | |
| CN103043697B (en) | Device for producing calcium oxide by using gypsum | |
| CN103058245B (en) | Equipment and technology of calcium oxide producing with calcium sulfate | |
| CN204778870U (en) | Equipment of production calcium oxide | |
| CN104891914A (en) | Method for preparing aerated brick from papermaking black liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160823 Address after: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee after: Hunan Fu Xiang new type building material Co., Ltd. Address before: 410005, 12 floor, Haidong mansion, Furong Road, Changsha, Hunan Patentee before: Liu Liwen |