CN103058247A - Equipment and technology for producing calcium oxide by using calcium sulfate - Google Patents
Equipment and technology for producing calcium oxide by using calcium sulfate Download PDFInfo
- Publication number
- CN103058247A CN103058247A CN2013100115354A CN201310011535A CN103058247A CN 103058247 A CN103058247 A CN 103058247A CN 2013100115354 A CN2013100115354 A CN 2013100115354A CN 201310011535 A CN201310011535 A CN 201310011535A CN 103058247 A CN103058247 A CN 103058247A
- Authority
- CN
- China
- Prior art keywords
- temperature calcination
- calcium
- calcium sulfate
- calcination kiln
- 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.)
- Granted
Links
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims abstract description 74
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000000292 calcium oxide Substances 0.000 title claims abstract description 24
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 16
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 5
- 235000011132 calcium sulphate Nutrition 0.000 claims description 32
- 238000003837 high-temperature calcination Methods 0.000 claims description 24
- 239000001175 calcium sulphate Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000001354 calcination Methods 0.000 abstract 5
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002994 raw material Substances 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
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000000126 substance 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
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention provides equipment and a technology for producing calcium oxide by using calcium sulfate; the equipment comprises a hopper, a high temperature calcining kiln, a heater, a gas booster pump and an absorbing tank, wherein the heater is arranged at the outer side of the high temperature calcining kiln; a vacuum exhaust port is arranged above the high temperature calcining kiln; the vacuum exhaust port is connected with one end of the gas booster pump by a pipeline; the other end of the gas booster pump is connected with the absorbing tank by the pipeline; the equipment is further provided with a pressurized gas and solid sprayer, an ultrasonic generator and a single-screw extruder; the feed port of the pressurized gas and solid sprayer is connected with the hopper, and the discharge port is connected with the feed port of the high temperature calcining kiln; the ultrasonic generator is mounted at the outer side of the heater; the single-screw extruder is connected with the discharge port of the high temperature calcining kiln; and the bottom end of the single-screw is provided with a discharge port. The invention also provides a technology for producing calcium oxide by using calcium sulfate. With the adoption of the equipment and the method, the decomposition rate of calcium sulfate is accelerated in order to prompt the decomposition of calcium sulfate powder; and meanwhile the purity of the product obtained can reach more than 85wt%.
Description
Technical field
The present invention relates to a kind of equipment and technology of producing calcium oxide, especially relate to a kind of equipment and technology of producing calcium oxide with calcium sulfate.
Background technology
Calcium oxide can be widely used in making calcium carbide, soda ash, chlorinated lime etc., also can be used as material of construction, refractory materials, siccative and soil improvement agent and calcareous fertilisers, or is used as the fusing assistant of analytical reagent, manufacturing fluorescent material, or is used for process hides, purification of waste water etc.During as material of construction and metallurgical fusing assistant, being the main raw material of hydrogen manufacturing calcium oxide and various calcium cpds, is the cheap alkali in the chemical industry.
Traditional calcium oxide production method mainly is as raw material take Wingdale, to calcine in Wingdale and solid fuel mixes or layering is packed into the shaft furnace, the defective of its existence is that production process is easily introduced secondary impurities, and product purity is low, in addition, rate of decomposition is desirable not enough.
Summary of the invention
Technical problem to be solved by this invention is a kind of rate of decomposition that improves to be provided, and to introduce without secondary impurities in the production process, the equipment and technology with calcium sulfate production calcium oxide that product purity is high.
The technical scheme that the present invention solves its technical problem employing is:
The present invention's the equipment with calcium sulfate production calcium oxide, comprise hopper, the high-temperature calcination kiln, well heater, the gas boosting pump, cuvette, described well heater is installed on the outside of high-temperature calcination kiln, the top of described high-temperature calcination kiln is provided with vaccum exhaust outlet, described vaccum exhaust outlet links to each other with an end of gas boosting pump by pipeline, the other end of described gas boosting pump links to each other with cuvette by pipeline, also be provided with the pressurization gas-solid injector, ultrasonic generator, single screw extrusion machine, the opening for feed of described pressurization gas-solid injector links to each other with hopper, discharge port links to each other with the opening for feed of high-temperature calcination kiln, described ultrasonic generator is installed on the outside of well heater, described single screw extrusion machine links to each other with the discharge port of high-temperature calcination kiln, and the end of described single screw extrusion machine is provided with discharge opening.
Further, be loaded with alkali lye in the described cuvette.
The present invention's the technique with calcium sulfate production calcium oxide is: calcium sulphate powders is dropped into hopper, calcium sulfate enters the pressurization gas-solid injector by hopper, under the effect of pressurization gas-solid injector, spray in the high-temperature calcination kiln that is warming up to 1000-2000 ℃, in the high-temperature calcination kiln, calcium sulfate generation decomposition reaction, start simultaneously ultrasonic generator, in the high-temperature calcination kiln, produce the 20-30kHz ultrasonic wave field, calcium sulphate powders rate of decomposition under the ultrasonic wave field effect is accelerated, waste gas after reaction generates pumps into cuvette by the gas boosting pump, and by alkali liquor absorption, the calcium oxide of generation is delivered to discharge opening by screw extrusion press and discharges.
The present invention's the equipment with calcium sulfate production calcium oxide, the purpose that the pressurization gas-solid injector is set is calcium sulphate powders to be disperseed better, better thermally equivalent.And the purpose that ultrasonic generator is set is, utilize ultrasonic wave can impel on the one hand the dispersion of calcium sulphate powders, accelerate heat distribution, promote the decomposition of calcium sulphate powders, can transmit on the other hand the energy that ultrasonic generator produces, be passed to calcium sulfate molecule aspect and excite the mechanical vibration of calcium sulphate powders solid particulate interior molecules aspect, improve material temperature (ultrasonic wave is a kind of elastic mechanical ripple in the material medium, and it has machinery, energy double effect to material).
Compared with prior art, the present invention's the equipment with calcium sulfate production calcium oxide can make the calcium sulfate rate of decomposition accelerate, to promote the decomposition of calcium sulphate powders, simultaneously, more than the products obtained therefrom purity 85wt%.
Description of drawings
Fig. 1 be the present embodiment produce the structural representation of the equipment of calcium oxide with calcium sulfate.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
With reference to accompanying drawing, the equipment with calcium sulfate production calcium oxide of the present embodiment, comprise hopper 1, high-temperature calcination kiln 3, well heater 5, gas boosting pump 7, cuvette 10, described well heater 5 is installed on the outside of high-temperature calcination kiln 3, the top of described high-temperature calcination kiln 3 is provided with vaccum exhaust outlet 6, vaccum exhaust outlet 6 links to each other with an end of gas boosting pump 7 by pipeline, the other end of described gas boosting pump 7 links to each other with cuvette 10 by pipeline, also be provided with pressurization gas-solid injector 2, ultrasonic generator 4, single screw extrusion machine 8, the opening for feed of described pressurization gas-solid injector 2 links to each other with hopper 1, discharge port links to each other with the opening for feed of high-temperature calcination kiln 3, described ultrasonic generator 4 is installed on the outside of well heater 5, described single screw extrusion machine 8 links to each other with the discharge port of high-temperature calcination kiln 3, and the end of described single screw extrusion machine 8 is provided with discharge opening 9.Be loaded with the sodium hydroxide solution of concentration 60wt% in the described cuvette.
The technique with calcium sulfate production calcium oxide of the present embodiment is: calcium sulphate powders is dropped into hopper 1, calcium sulfate enters pressurization gas-solid injector 2 by hopper 1, under the effect of pressurization gas-solid injector 2, spray in the high-temperature calcination kiln 3 that is warming up to 1500 ℃, in high-temperature calcination kiln 3, calcium sulfate generation decomposition reaction, start simultaneously ultrasonic generator 4, at high-temperature calcination kiln 3 interior generation 20kHz ultrasonic wave fields, calcium sulphate powders rate of decomposition under the ultrasonic wave field effect is accelerated, waste gas after reaction generates pumps into cuvette 10 by gas boosting pump 7, and is absorbed by sodium hydroxide lye, and the calcium oxide of generation is delivered to discharge opening 9 by screw extrusion press 8 and discharges.The purity of gained calcium oxide is 88wt%.
Claims (3)
1. equipment of producing calcium oxide with calcium sulfate, comprise hopper, the high-temperature calcination kiln, well heater, the gas boosting pump, cuvette, described well heater is installed on the outside of high-temperature calcination kiln, the top of described high-temperature calcination kiln is provided with vaccum exhaust outlet, described vaccum exhaust outlet links to each other with an end of gas boosting pump by pipeline, the other end of described gas boosting pump links to each other with cuvette by pipeline, it is characterized in that: also be provided with the pressurization gas-solid injector, ultrasonic generator, single screw extrusion machine, the opening for feed of described pressurization gas-solid injector links to each other with hopper, discharge port links to each other with the opening for feed of high-temperature calcination kiln, described ultrasonic generator is installed on the outside of well heater, described single screw extrusion machine links to each other with the discharge port of high-temperature calcination kiln, and the end of described single screw extrusion machine is provided with discharge opening.
2. the equipment of producing calcium oxide with calcium sulfate according to claim 1 is characterized in that: be loaded with alkali lye in the described cuvette.
3. technique of producing calcium oxide with calcium sulfate of utilizing the described equipment of claim 2, it is characterized in that: calcium sulphate powders is dropped into hopper, calcium sulphate powders enters the pressurization gas-solid injector by hopper, under the effect of pressurization gas-solid injector, spray in the high-temperature calcination kiln that is warming up to 1000-2000 ℃, in the high-temperature calcination kiln, calcium sulfate generation decomposition reaction, start simultaneously ultrasonic generator, in the high-temperature calcination kiln, produce the 20-30kHz ultrasonic wave field, calcium sulphate powders rate of decomposition under the ultrasonic wave field effect is accelerated, waste gas after reaction generates pumps into cuvette by the gas boosting pump, and by alkali liquor absorption, the calcium oxide of generation is delivered to discharge opening by screw extrusion press and discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011535.4A CN103058247B (en) | 2013-01-14 | 2013-01-14 | Equipment and technology for producing calcium oxide by using calcium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011535.4A CN103058247B (en) | 2013-01-14 | 2013-01-14 | Equipment and technology for producing calcium oxide by using calcium sulfate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103058247A true CN103058247A (en) | 2013-04-24 |
| CN103058247B CN103058247B (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310011535.4A Active CN103058247B (en) | 2013-01-14 | 2013-01-14 | Equipment and technology for producing calcium oxide by using calcium sulfate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927327A (en) * | 2018-05-25 | 2018-12-04 | 广东仁开科技有限公司 | A kind of ultrasonic wave distributing structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US452683A (en) * | 1891-05-19 | Music-holder | ||
| JPS6096525A (en) * | 1983-07-07 | 1985-05-30 | Nichiro Gyogyo Kk | Porous calcium oxide made of crab shell |
| 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 |
| CN203128218U (en) * | 2013-01-14 | 2013-08-14 | 刘立文 | Equipment for producing calcium oxide with calcium sulfate |
-
2013
- 2013-01-14 CN CN201310011535.4A patent/CN103058247B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US452683A (en) * | 1891-05-19 | Music-holder | ||
| JPS6096525A (en) * | 1983-07-07 | 1985-05-30 | Nichiro Gyogyo Kk | Porous calcium oxide made of crab shell |
| 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 |
| CN203128218U (en) * | 2013-01-14 | 2013-08-14 | 刘立文 | Equipment for producing calcium oxide with calcium sulfate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927327A (en) * | 2018-05-25 | 2018-12-04 | 广东仁开科技有限公司 | A kind of ultrasonic wave distributing structure |
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| Publication number | Publication date |
|---|---|
| CN103058247B (en) | 2014-12-24 |
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| 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 | ||
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Effective date of registration: 20160902 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 |