CN103058247B - 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
- CN103058247B CN103058247B CN201310011535.4A CN201310011535A CN103058247B CN 103058247 B CN103058247 B CN 103058247B CN 201310011535 A CN201310011535 A CN 201310011535A CN 103058247 B CN103058247 B CN 103058247B
- 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.)
- Active
Links
Landscapes
- 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 producing calcium oxide, especially relate to the equipment and technology that a kind of calcium sulfate produces calcium oxide.
Background technology
Calcium oxide can be widely used in manufacturing 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, manufacture fluorescent material, or 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 cpd, is the cheap alkali in chemical industry.
Traditional calcium oxide production method is mainly raw material with Wingdale, Wingdale and solid fuel are mixed or layering loads in shaft furnace and calcines, its defect existed is that production process easily introduces 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, provides one to improve rate of decomposition, and introduces without secondary impurities in production process, the equipment and technology producing calcium oxide with calcium sulfate that product purity is high.
The technical scheme that the present invention solves the employing of its technical problem is:
The equipment producing calcium oxide with calcium sulfate of the present invention, comprise hopper, high-temperature calcination kiln, well heater, 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 is connected by pipeline one end with gas boosting pump, the other end of described gas boosting pump is connected with cuvette by pipeline, also be provided with pressurization gas-solid injector, ultrasonic generator, single screw extrusion machine, the opening for feed of described pressurization gas-solid injector is connected with hopper, discharge port is connected 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 is connected with the discharge port of high-temperature calcination kiln, the end of described single screw extrusion machine is provided with discharge opening.
Further, alkali lye is loaded with in described cuvette.
The present invention by the technique of calcium sulfate production calcium oxide is: calcium sulphate powders is dropped into hopper, calcium sulfate enters pressurization gas-solid injector by hopper, under the effect of pressurization gas-solid injector, spray into and be warming up in the high-temperature calcination kiln of 1000-2000 DEG C, in high-temperature calcination kiln, calcium sulfate generation decomposition reaction, start ultrasonic generator simultaneously, 20-30kHz ultrasonic wave field is produced in high-temperature calcination kiln, calcium sulphate powders rate of decomposition under ultrasonic wave field effect is accelerated, waste gas after reaction generates pumps into cuvette by gas boosting pump, and by alkali liquor absorption, the calcium oxide generated is delivered to discharge opening by screw extrusion press and discharges.
The equipment producing calcium oxide with calcium sulfate of the present invention, the object arranging pressurization gas-solid injector calcium sulphate powders to be disperseed better, thermally equivalent better.And the object arranging ultrasonic generator is, utilize ultrasonic wave can impel the dispersion of calcium sulphate powders on the one hand, accelerate heat distribution, promote the decomposition of calcium sulphate powders, the energy that ultrasonic generator produces can be transmitted on the other hand, be passed to calcium sulfate molecule aspect and excite the mechanical vibration of calcium sulphate powders solid particulate interior molecules aspect, improving material temperature (ultrasonic wave is a kind of elastic mechanical ripple in material medium, and it has machinery, energy double effect to material).
Compared with prior art, the equipment producing calcium oxide with calcium sulfate of the present invention, calcium sulfate rate of decomposition can be made to accelerate, and to promote the decomposition of calcium sulphate powders, meanwhile, products obtained therefrom purity can reach more than 85wt%.
Accompanying drawing explanation
Fig. 1 is the structural representation producing the equipment of calcium oxide with calcium sulfate of the present embodiment.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to accompanying drawing, the equipment producing calcium oxide with calcium sulfate 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 is connected by pipeline one end with gas boosting pump 7, the other end of described gas boosting pump 7 is connected 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 is connected with hopper 1, discharge port is connected 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 is connected with the discharge port of high-temperature calcination kiln 3, the end of described single screw extrusion machine 8 is provided with discharge opening 9.The sodium hydroxide solution of concentration 60wt% is loaded with in described cuvette.
The producing the technique of calcium oxide with calcium sulfate and be of the present embodiment: 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 into and be warming up in the high-temperature calcination kiln 3 of 1500 DEG C, in high-temperature calcination kiln 3, calcium sulfate generation decomposition reaction, start ultrasonic generator 4 simultaneously, 20kHz ultrasonic wave field is produced in high-temperature calcination kiln 3, calcium sulphate powders rate of decomposition under ultrasonic wave field effect is accelerated, waste gas after reaction generates pumps into cuvette 10 by gas boosting pump 7, and absorbed by sodium hydroxide lye, the calcium oxide generated is delivered to discharge opening 9 by screw extrusion press 8 and discharges.The purity of gained calcium oxide is 88wt%.
Claims (3)
1. produce the equipment of calcium oxide with calcium sulfate for one kind, comprise hopper, high-temperature calcination kiln, well heater, 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 is connected by pipeline one end with gas boosting pump, the other end of described gas boosting pump is connected with cuvette by pipeline, it is characterized in that: be also provided with pressurization gas-solid injector, ultrasonic generator, single screw extrusion machine, the opening for feed of described pressurization gas-solid injector is connected with hopper, discharge port is connected 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 is connected with the discharge port of high-temperature calcination kiln, the end of described single screw extrusion machine is provided with discharge opening.
2. calcium sulfate according to claim 1 produces the equipment of calcium oxide, it is characterized in that: be loaded with alkali lye in described cuvette.
3. one kind utilizes the technique of producing calcium oxide with calcium sulfate of equipment described in claim 2, it is characterized in that: calcium sulphate powders is dropped into hopper, calcium sulphate powders enters pressurization gas-solid injector by hopper, under the effect of pressurization gas-solid injector, spray into and be warming up in the high-temperature calcination kiln of 1000-2000 DEG C, in high-temperature calcination kiln, calcium sulfate generation decomposition reaction, start ultrasonic generator simultaneously, 20-30kHz ultrasonic wave field is produced in high-temperature calcination kiln, calcium sulphate powders rate of decomposition under ultrasonic wave field effect is accelerated, waste gas after reaction generates pumps into cuvette by gas boosting pump, and by alkali liquor absorption, the calcium oxide generated 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 CN103058247A (en) | 2013-04-24 |
| CN103058247B true CN103058247B (en) | 2014-12-24 |
Family
ID=48101186
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103058247B (en) |
Families Citing this family (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 (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 |
| CN203128218U (en) * | 2013-01-14 | 2013-08-14 | 刘立文 | Equipment for producing calcium oxide with calcium sulfate |
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 |
-
2013
- 2013-01-14 CN CN201310011535.4A patent/CN103058247B/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 |
| CN203128218U (en) * | 2013-01-14 | 2013-08-14 | 刘立文 | Equipment for producing calcium oxide with calcium sulfate |
Non-Patent Citations (1)
| Title |
|---|
| JP昭60-96525A 1985.05.30 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103058247A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103147434B (en) | Treatment system and method for consolidating soft soil foundation by utilizing industrial waste gas heat | |
| CN201240857Y (en) | Low temperature pyrolysis reactor | |
| CN110817926A (en) | Method for directly preparing α -hemihydrate gypsum from titanium white waste acid | |
| CN103058247B (en) | Equipment and technology for producing calcium oxide by using calcium sulfate | |
| KR20130027299A (en) | Obataining method and the apparatus for water treatment formal zeolite using hydrothermal reaction in an autoclave | |
| CN104310829A (en) | Device and method for producing alpha-semi-hydrated gypsum by utilizing industrial by-product gypsum by means of pneumatic autoclave | |
| CN103896554A (en) | Autoclaved brisk taking dolomite tailings and iron tailings as main raw materials and preparation method thereof | |
| CN102285677B (en) | Method for producing calcium chloride based on carbide slag as raw material | |
| CN203128218U (en) | Equipment for producing calcium oxide with calcium sulfate | |
| CN203855538U (en) | Polyvinyl chloride clean close-loop production system | |
| CN101096732B (en) | Magnesium and magnesium alloy resource circulatory utilization system | |
| CN101955209B (en) | Waste steam heat recycling method in potassium nitrate production | |
| CN102134098A (en) | Device for producing chromate by continuous liquid-phase oxidation reaction | |
| CN103101953B (en) | Equipment for producing calcium oxide by using gypsum | |
| CN215946768U (en) | Thermal cracking system device for decomposing gypsum by adopting superheated steam | |
| CN203128216U (en) | Device for producing calcium oxide from gypsum | |
| CN100590074C (en) | Method for producing cryolite | |
| CN103043627B (en) | Device for producing sulfuric acid from calcium sulfate | |
| CN101214981B (en) | Method for producing monohydrate magnesium sulfate by using gyration chemical synthesis device | |
| CN202968117U (en) | Device for producing sulfuric acid by calcium sulfate | |
| CN203128217U (en) | Device for producing calcium oxide by utilizing gypsum | |
| CN115974082B (en) | Retrieve yellow phosphorus tail gas preparation carbide's device | |
| CN103058245A (en) | Equipment and technology of calcium oxide producing with calcium sulfate | |
| CN202968148U (en) | Equipment for producing calcium oxide by utilizing calcium sulphate | |
| CN103508426B (en) | Equipment and process for producing sulfur trioxide by using gypsum |
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: 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 |