CN203128216U - Device for producing calcium oxide from gypsum - Google Patents
Device for producing calcium oxide from gypsum Download PDFInfo
- Publication number
- CN203128216U CN203128216U CN 201220734164 CN201220734164U CN203128216U CN 203128216 U CN203128216 U CN 203128216U CN 201220734164 CN201220734164 CN 201220734164 CN 201220734164 U CN201220734164 U CN 201220734164U CN 203128216 U CN203128216 U CN 203128216U
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- CN
- China
- Prior art keywords
- reaction chamber
- calcium oxide
- gypsum
- discharge port
- feeding cylinder
- 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.)
- Expired - Lifetime
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The utility model relates to a device for producing calcium oxide from gypsum. The device comprises a feed cylinder with a hopper, a reaction chamber and a tail gas absorption tank, wherein a plunger which can reciprocate is arranged in the feed cylinder, a discharge port of the feed cylinder is directly connected with a feed port of the reaction chamber, the discharge port is arranged at the tail end of the reaction chamber, a vacuum exhaust port is arranged at the lower part of the reaction chamber, which is close to the discharge port, and the vacuum exhaust port is connected with the tail gas absorption tank through a pipeline equipped with a vacuum pump; and a microwave generator is arranged on the outer side of the reaction chamber. By adopting the device for producing calcium oxide from gypsum, disclosed by the utility model, the heating of materials is uniform, the heating effect is good, secondary impurities are not introduced during the whole process, waste gases, such as SO3 and SO2, are almost completely absorbed, environmental pollution can be avoided, and the purity of a calcium oxide product can be above 80% by weight.
Description
Technical field
The utility model relates to a kind of equipment of producing calcium oxide, especially relates to a kind of equipment that utilizes gypsum to produce calcium oxide.
Background technology
Calcium oxide is widely used in makes calcium carbide, soda ash, chlorinated lime, as refractory materials, siccative and soil improvement agent; Fusing assistant as analytical reagent, manufacturing fluorescent material; Be used 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 cpds.
Traditional calcium oxide production method mainly is raw material with the Wingdale, and calcining process adopts shaft furnace, calcine in Wingdale and solid fuel mixes or layering is packed into the kiln, last remainder be the calcium oxide product.The equipment volume that this production method needs is big, also introduces secondary impurities easily, and environmental pollution is also bigger.The calcium oxide purity of producing is also lower, can not satisfy some field to the user demand of high-purity calcium oxide.
It is raw material with the high purity marble that Chinese invention patent application 200810064141.4 discloses a kind of, be the calcium oxide production method of thermal source with gas or solid fuel, reduced the introducing of new impurity to a certain extent, substantially reached cleaner production, but this production technique is wayward, production cost is higher, and starting material itself also contain a certain amount of impurity, can't remove by this method.
The utility model content
The technical problems to be solved in the utility model is, overcomes the deficiencies in the prior art, provides a kind of introducing impurity less, and energy consumption is lower, and the higher gypsum of production efficiency is produced the equipment of calcium oxide.
The technical scheme that its technical problem that solves the utility model adopts is:
Gypsum is produced the equipment of calcium oxide, comprise the feeding cylinder, reaction chamber, the exhaust gas absorption cell that have hopper, be provided with the plunger that can back and forth move in the described feeding cylinder, the discharge port of described feeding cylinder directly links to each other 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 links to each other with exhaust gas absorption cell by the pipeline that vacuum pump is installed; The reaction chamber outside is provided with microwave generator.
Working process:
Powder gypsum is added in the material bin, powder gypsum falls in the feeding cylinder from the hopper lower part outlet, plunger is operation 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 ℃ rapidly equably, gypsum generation dehydration reaction, slough crystal water, decomposition reaction takes place again, generate calcium oxide, sulfurous gas and oxygen, the mixed gas of sulfurous gas and oxygen etc. is under the effect of vacuum pump, extract out and the importing exhaust gas absorption cell by vaccum exhaust outlet, obnoxious flavoures such as sulfurous gas are absorbed, and unabsorbed innocuous gas is discharged in the environment; After reaction finishes, restart plunger work, the plunger in the feeding cylinder is entered in the reaction chamber, under the positive action of plunger, the product calcium oxide in the reaction chamber is discharged by the discharge port of reaction chamber.
Adopt the equipment of the gypsum production calcium oxide of the utility model, material is heated evenly, and heats is good, and whole process is not introduced secondary impurities, waste gas SO
3, SO
2Almost absorbed fully, can not produce environmental pollution, the calcium oxide product purity is up to more than the 80wt%.
Description of drawings
Fig. 1 is the structural representation that the utility model gypsum is produced the apparatus embodiments of calcium oxide.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
With reference to accompanying drawing, present embodiment comprises feeding cylinder 3, reaction chamber 5, the exhaust gas absorption cell 8 that has hopper 2, is provided with the plunger 1 that can back and forth move in the described feeding cylinder 3; The discharge port of described feeding cylinder 3 directly links to each other 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 links to each other with exhaust gas absorption cell 8 by the pipeline that vacuum pump 7 is installed; Reaction chamber 5 outsides are provided with microwave generator 4.
Working process:
Powder gypsum is added in the material bin 2, powder gypsum falls in the feeding cylinder 3 from hopper 2 lower part outlets, plunger 1 is operation 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 ℃ rapidly equably, gypsum generation dehydration reaction, slough crystal water, decomposition reaction takes place 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, extract out and importing exhaust gas absorption cell 8 by vaccum exhaust outlet 6, obnoxious flavoures such as sulfurous gas are absorbed, and unabsorbed innocuous gas is discharged in the environment; After reaction finishes, restart plunger 1 work, the plunger 1 in the feeding cylinder 3 is entered in the reaction chamber 5, under the positive action of plunger 1, the product calcium oxide in the reaction chamber 5 is discharged by the discharge port 9 of reaction chamber 5.
Adopt the equipment of the gypsum production calcium oxide of the utility model, material is heated evenly, and heats is good, and whole process is not introduced secondary impurities, waste gas SO
3, SO
2Almost absorbed fully, can not produce environmental pollution, the calcium oxide product purity is up to more than the 80wt%.
Claims (1)
1. gypsum is produced the equipment of calcium oxide, it is characterized in that, comprise the feeding cylinder, reaction chamber, the exhaust gas absorption cell that have hopper, be provided with the plunger that can back and forth move in the described feeding cylinder, the discharge port of described feeding cylinder directly links to each other 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 links to each other with exhaust gas absorption cell by the pipeline that vacuum pump is installed; The reaction chamber outside is provided with microwave generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734164 CN203128216U (en) | 2012-12-28 | 2012-12-28 | Device for producing calcium oxide from gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734164 CN203128216U (en) | 2012-12-28 | 2012-12-28 | Device for producing calcium oxide from gypsum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203128216U true CN203128216U (en) | 2013-08-14 |
Family
ID=48936214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220734164 Expired - Lifetime CN203128216U (en) | 2012-12-28 | 2012-12-28 | Device for producing calcium oxide from gypsum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203128216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101953A (en) * | 2012-12-28 | 2013-05-15 | 刘立文 | Equipment for producing calcium oxide by using gypsum |
-
2012
- 2012-12-28 CN CN 201220734164 patent/CN203128216U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101953A (en) * | 2012-12-28 | 2013-05-15 | 刘立文 | Equipment for producing calcium oxide by using gypsum |
| CN103101953B (en) * | 2012-12-28 | 2014-12-24 | 刘立文 | Equipment for producing calcium oxide by using gypsum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20141224 |
|
| RGAV | Abandon patent right to avoid regrant |