CN214439955U - Device for producing active lime by using carbide slag - Google Patents
Device for producing active lime by using carbide slag Download PDFInfo
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- CN214439955U CN214439955U CN202023298061.0U CN202023298061U CN214439955U CN 214439955 U CN214439955 U CN 214439955U CN 202023298061 U CN202023298061 U CN 202023298061U CN 214439955 U CN214439955 U CN 214439955U
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Abstract
The utility model discloses an utilize carbide slag production active lime's device, including breaking up the device, the export tuber pipe, cyclone, the device fan, dust arrester installation, the dust arrester fan couples in order, raw coal burner export links with developments suspension calcining device bottom, high temperature dynamic separation device export links with the drying device bottom of breaking up, it links with developments suspension cooling device import tuber pipe to set up the unloading pipe bottom high temperature dynamic separation device, it links to set up the tuber pipe and link with raw coal burner in developments suspension cooling device export, cyclone, the dust arrester installation bottom sets up conveyor and developments suspension calcining device and links. The utility model discloses a carbide slag production active lime provides reliable technical support, simultaneously the utility model discloses a developments suspension calcines technique, effectual utilization efficiency who improves the raw coal, and whole apparatus for producing moves under the negative pressure operating mode, does not produce secondary pollution, easily popularizes and applies.
Description
Technical Field
The utility model belongs to the technical field of solid useless utilization, a device that utilizes carbide slag to produce active lime is related to.
Background
With the rapid development of the chemical industry of the calcium carbide slag chlor-alkali method in China, the yield of the main solid waste generated by the calcium carbide slag as the chemical industry of the calcium carbide chlor-alkali method is gradually increased. Because the carbide slag contains calcium hydroxide, the carbide slag is generally used as a calcium raw material of cement, and is partially used as a desulfurizing agent and a calcium carbonate raw material. At present, the cement production amount per year in China is about 24.5 hundred million tons, the product quality fluctuation in the calcium carbide cement industry is large, the production cost is high, and the competitive advantage is not provided.
Limestone is a main raw material for producing lime, lime in China is a main production mode at present, the limestone is calcined, a large amount of waste rocks which cannot be utilized are generated in the process of mining the limestone, the waste rocks occupy a large amount of land when being stacked, and dust generated by weathering of the waste rocks is easy to cause environmental pollution. The carbide slag contains a large amount of calcium hydroxide, and if the calcium hydroxide is converted into lime, the carbide slag can be prevented from polluting the environment, a large amount of limestone resources can be saved, and the method is a production technology with environmental protection, economic and social benefits.
Disclosure of Invention
For solving the problem of limestone excavation and carbide slag polluted environment, the utility model provides a device for producing active lime by using carbide slag, the effectual technical problem who solves traditional carbide slag cycle recycle, the utility model discloses a dynamic suspension calcination technique combines dynamic suspension cooling technology to realize the purpose of carbide slag production active lime, has avoided piling up because of carbide slag, the environmental pollution that the exploitation of limestone ore caused, and this apparatus for producing simple process, carbide slag handling capacity is big, and is with low costs, has good environmental protection, economy and social.
In order to realize the purpose, the device for producing the active lime by using the carbide slag is provided, and the specific technical scheme is as follows: carbide slag is fed into a scattering and drying device and a cyclone separator after being treated by a magnetic separation device, a hydraulic cyclone separation device, a flotation separation device and a solid-liquid separation device; the separated materials and the materials collected by the dust collector are fed into a dynamic suspension calcining device through a conveying device arranged at the lower parts of a cyclone separator and the dust collector, are subjected to heat exchange with hot gas from a raw coal combustion device, are quickly decomposed and then enter a high-temperature dynamic separation device, the separated materials enter a suspension cooling device for cooling, and the high-temperature gas enters a scattering and drying device for utilization; the materials from the high-temperature dynamic separation device exchange heat with air, the cooled materials are collected to form active lime powder, and the air after heat exchange enters the raw coal combustion device to help combustion, so that the heat efficiency of the device is improved. The device is characterized by comprising a magnetic separation device, a hydraulic cyclone separation device, a flotation separation device, a solid-liquid separation device, a scattering and drying device, a cyclone separator, a dynamic suspension calcining device, a high-temperature dynamic separation device, a dynamic suspension cooling separation device, a raw coal combustion device, a device fan, a dust collection device and a conveying device which are sequentially connected.
The device for producing the active lime by using the carbide slag is characterized in that the breaking device, the cyclone separator, the device fan, the dust collecting device and the dust collecting fan are connected in sequence.
The device for producing the active lime by using the carbide slag is characterized in that an outlet of the raw coal combustion device is provided with an air pipe which is connected with an inlet of the dynamic suspension calcining device.
The device for producing the active lime by using the carbide slag is characterized in that the outlet of the high-temperature dynamic separation device is provided with an air pipe which is connected with the bottom of the scattering and drying device.
The device for producing the active lime by using the carbide slag is characterized in that the bottom of the high-temperature dynamic separation device is provided with the blanking pipe which is connected with the inlet air pipe of the dynamic suspension cooling device.
The device for producing the active lime by using the carbide slag is characterized in that an outlet of the dynamic suspension cooling device is provided with an air pipe which is connected with the raw coal combustion device.
The device for producing the active lime by using the carbide slag is characterized in that the bottoms of the cyclone separator and the dust collecting device are provided with the conveying devices which are connected with the dynamic suspension calcining device.
Compared with the prior art, the utility model discloses a dross removal mechanism possesses following advantage at least:
(1) the utility model discloses an adopt dynamic suspension to calcine technique and dynamic suspension cold district technique, consequently can realize utilizing and retrieving the more efficient of heat energy, improve heat energy utilization efficiency, reduce heat energy loss.
(2) The utility model discloses a magnetic separation separator, water conservancy cyclone, flotation separation device purify the carbide slag, can effectively reduce the influence of the impurity in the carbide slag to finished product quality.
(3) The utility model discloses a negative pressure operation can avoid the dust to reveal, reduces the environmental pollution of production process.
Drawings
Fig. 1 is a schematic view of the apparatus connection of the present invention.
Wherein: the device comprises a magnetic separation device 1, a cyclone separation device 2, a flotation device 3, a solid-liquid separation device 4, a drying and scattering device 5, a dynamic suspension calcining device 6, a high-temperature dynamic separation device 7, a dynamic suspension cooling device 8, a raw coal combustion device 9, a fan 10, a dust collection device 11 and a dust collection fan 12.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of the preferred embodiments, which should not be construed as limiting the invention.
With reference to fig. 1, the utility model has the following working processes: the carbide slag slurry enters a magnetic separator 1 after being metered, and iron impurities contained in the carbide slag are removed; the carbide slag slurry without iron impurities enters a hydraulic cyclone separator 2, and carbide slag with high calcium content is preferably selected; the preferable carbide slag slurry enters a flotation column 3 to remove aluminum and silicon impurities contained in the carbide slag, and then enters a filter press 4 to perform solid-liquid separation. The separated carbide slag with about 30 percent of water enters a drying and scattering crusher 5, the carbide slag is subjected to heat exchange with high-temperature flue gas from a high-temperature dynamic separator 7 in the drying and scattering crusher, the scattered and dried carbide slag is collected by a cyclone separator and is sent into a dynamic suspension decomposing furnace 6 through a chain conveyor, the flue gas after heat exchange is treated by a fan 10, a sintered plate dust collector 11 and a dust collecting fan 12 and then is discharged into the atmosphere, and the carbide slag collected by the sintered plate dust collector 11 is mixed with the carbide slag from the drying and scattering crusher 5 through the chain conveyor and is sent into the dynamic suspension calcining decomposing furnace 6. Carbide slag entering the dynamic suspension calcination decomposing furnace 6 and high-temperature gas with the temperature of about 900 ℃ from the raw coal combustion furnace 9 are quickly decomposed into lime in the dynamic suspension calcination decomposing furnace 6, the lime is separated by the high-temperature dynamic separator 7 and then enters the dynamic suspension cooling separator 8, the lime and the normal-temperature air entering from the inlet of the dynamic suspension cooling separator 8 are subjected to heat exchange, the lime and the air are quickly cooled and collected for standby, the preheated air enters the raw coal combustion furnace 9, and the heat efficiency of the device is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many changes and modifications can be made without departing from the inventive concept, and these changes and modifications all fall into the protection scope of the present invention.
Claims (7)
1. The device for producing the active lime by using the carbide slag is characterized by comprising a magnetic separation device, a hydraulic cyclone separation device, a flotation separation device, a solid-liquid separation device, a scattering and drying device, a cyclone separator, a dynamic suspension calcining device, a high-temperature dynamic separation device, a dynamic suspension cooling separation device, a raw coal combustion device, a device fan, a dust collection device and a conveying device which are sequentially connected.
2. The apparatus for producing active lime using carbide slag as claimed in claim 1, wherein the breaking apparatus, the cyclone, the apparatus fan, the dust collecting apparatus, and the dust collecting fan are connected in sequence.
3. The apparatus for producing activated lime using carbide slag as claimed in claim 1, wherein an outlet of the raw coal combustion apparatus is provided with an air duct connected to an inlet of the dynamic suspension calcining apparatus.
4. The apparatus for producing activated lime using carbide slag as claimed in claim 1, wherein the outlet of the high temperature dynamic separation device is provided with an air pipe connected to the bottom of the breaking and drying device.
5. The apparatus for producing activated lime using carbide slag as claimed in claim 1, wherein the high temperature dynamic separation device is connected to an inlet air duct of the dynamic suspension cooling device.
6. The apparatus for producing activated lime using carbide slag as claimed in claim 1, wherein an outlet of the dynamic suspension cooling apparatus is provided with an air duct connected to the raw coal combustion apparatus.
7. The apparatus for producing active lime using carbide slag as claimed in claim 1, wherein the bottom of the cyclone and dust collector is provided with a conveying device connected to the dynamic suspension calcining device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023298061.0U CN214439955U (en) | 2020-12-31 | 2020-12-31 | Device for producing active lime by using carbide slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023298061.0U CN214439955U (en) | 2020-12-31 | 2020-12-31 | Device for producing active lime by using carbide slag |
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| Publication Number | Publication Date |
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| CN214439955U true CN214439955U (en) | 2021-10-22 |
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| CN202023298061.0U Active CN214439955U (en) | 2020-12-31 | 2020-12-31 | Device for producing active lime by using carbide slag |
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| CN (1) | CN214439955U (en) |
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- 2020-12-31 CN CN202023298061.0U patent/CN214439955U/en active Active
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