CN212962872U - Magnesite tailing calcines automatic control device - Google Patents
Magnesite tailing calcines automatic control device Download PDFInfo
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- CN212962872U CN212962872U CN202021738190.4U CN202021738190U CN212962872U CN 212962872 U CN212962872 U CN 212962872U CN 202021738190 U CN202021738190 U CN 202021738190U CN 212962872 U CN212962872 U CN 212962872U
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Abstract
The utility model relates to a magnesite tailing calcines automatic control device, including the kiln body, pan feeding mouth, storage silo, discharge gate, gas pipeline, combustion air pipeline, thermocouple, carbon dioxide concentration tester, adjusting valve and controller. The utility model is provided with a thermocouple and a carbon dioxide concentration tester in the kiln body, measures the temperature and the carbon dioxide concentration in the kiln, adjusts the gas quantity and the combustion-supporting air quantity, and controls the magnesite tailing calcining system in the kiln; a plurality of sets of thermocouples and carbon dioxide concentration testers are arranged, so that the temperature control is more accurate, and the product performance is more stable; the gas and combustion-supporting air quantity are reasonably controlled, the kiln efficiency is higher, and the energy conservation and environmental protection are realized.
Description
Technical Field
The patent of the utility model relates to a refractory material production facility field, concretely relates to magnesite tailing calcines automatic control device.
Background
After being calcined by a kiln, the magnesite is widely applied to the fields of metallurgy, chemical industry, building materials and the like, and is an important basic raw material for national economy. With the decrease of the reserves of high-grade ores, the process for preparing concentrate from low-grade ores by adopting a flotation process is gradually mature, and a large amount of magnesite tailing resources are generated, so that a larger market is urgently needed to be developed. The magnesite tailings have important resource advantages, low price and convenient purchase; small particle size, easy calcination and quick decomposition.
However, the magnesite tailings are activated by a light burning process due to high-quality and high-efficiency utilization, and are convenient to apply to the fields of magnesium building materials and magnesium chemical industry. Therefore, the application of automatic control device for calcination is urgent, but the related research is relatively lagged and further development is needed to meet the market demand.
Disclosure of Invention
In order to solve the problem, the utility model provides a high-efficient, energy-conserving magnesite tailing calcines automatic control device.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
an automatic control device for magnesite tailing calcination is characterized by comprising a kiln body, a feeding port, a storage bin, a discharge port, a gas pipeline, a combustion air pipeline, a thermocouple, a carbon dioxide concentration tester, an adjusting valve and a controller;
the kiln body top is sealed, the upper portion is cylindricly, the lower part is the inverted cone form, the coniform part accounts for the kiln body 1/10-1/5, the pan feeding mouth is located under the kiln body, communicate with each other with kiln body below inverted cone part, kiln body below inverted cone lateral wall respectively establishes gas pipeline and combustion air pipeline about, two storage silos are located kiln body top left and right sides respectively, the storage silo bottom is equipped with the discharge gate, kiln body cylindric part's top, lower part both sides, the lateral wall and the storage silo lateral wall of middle part both sides, shoulder both sides all are equipped with thermocouple and carbon dioxide concentration tester.
And regulating valves are arranged between the gas pipeline and the combustion air pipeline and the side wall of the inverted cone below the kiln body.
The thermocouple and the carbon dioxide concentration tester are electrically connected with the controller.
Compared with the prior art, the beneficial effects of the utility model are that: 1) a thermocouple and a carbon dioxide concentration tester are arranged in the kiln body, the temperature and the carbon dioxide concentration in the kiln are measured, the gas quantity and the combustion-supporting air quantity are regulated, and the magnesite tailing calcining system in the kiln is controlled; 2) a plurality of sets of thermocouples and carbon dioxide concentration testers are arranged, so that the temperature control is more accurate, and the product performance is more stable; 3) the gas and combustion-supporting air quantity are reasonably controlled, the kiln efficiency is higher, and the energy conservation and environmental protection are realized.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1-kiln body, 2-feeding port, 3-storage bin, 4-discharging port, 5-gas pipeline, 6-combustion air pipeline, 7-thermocouple, 8-carbon dioxide concentration tester, 9-regulating valve and 10-controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
See fig. 1, is the structure schematic diagram of the embodiment of the automatic control device for magnesite tailing calcination of the utility model, which comprises a kiln body 1, a feeding port 2, a storage bin 3, a discharge port 4, a gas pipeline 5, a combustion air pipeline 6, a thermocouple 7, a carbon dioxide concentration tester 8, an adjusting valve 9 and a controller 10.
The top of the kiln body 1 is closed, the upper part is cylindrical, the lower part is in an inverted cone shape, the conical part accounts for 1/10-1/5 of the kiln body 1, the feeding port 2 is positioned under the kiln body 1 and is communicated with the inverted cone part below the kiln body 1, a gas pipeline 5 and a combustion air pipeline 6 are respectively arranged on the left and right of the inverted cone side wall below the kiln body 1, two storage bins 3 are respectively arranged on the left and right sides above the kiln body 1, a discharging port 4 is arranged at the bottom of each storage bin 3, and a thermocouple 7 and a carbon dioxide concentration tester 8 are respectively arranged on the top end, the two sides of the lower part, the two sides of the middle part, the outer side walls of the two sides of the shoulder part and the.
And an adjusting valve 9 is arranged between the gas pipeline 5 and the combustion air pipeline 6 and the side wall of the inverted cone below the kiln body 1.
The thermocouple 7 and the carbon dioxide concentration tester 8 are electrically connected to a controller 10.
The tailings fine powder raw material is sprayed into a kiln body 1 through a feeding port 2, fuel gas and combustion-supporting air respectively enter the kiln body 1 through a fuel gas pipeline 5 and a combustion-supporting air pipeline 6, the fuel gas and the combustion-supporting air heat materials after being combusted, the magnesite tailings light burning powder with lighter weight upwards surges along with the heat exchange between hot flue gas and the tailings fine powder and passes through thermocouples 7 and carbon dioxide concentration testers 8 at two sides of the lower part and two sides of the middle part of the kiln body 1, the magnesite tailings light burning powder passes through the thermocouples 7 and the carbon dioxide concentration testers 8 at the shoulder part of the top end of the kiln body 1 after being fully heat exchanged and enters a storage bin 3, and the light burning powder passes through a discharge port 4 after passing through the thermocouples 7 and the carbon dioxide concentration testers 8 at the outer side wall of the storage bin, so that qualified magnesite.
The controller 10 controls the opening degree of the valve of the gas through the gas pipeline 6 and the combustion air pipeline 7 by using the regulating valve 9 through the monitoring thermocouple 7 and the carbon dioxide concentration tester 8, and regulates the air inflow, thereby realizing the automatic control of the magnesite tailing calcining kiln. The different kiln internal temperatures correspond to the decomposition efficiency of the magnesite tailings, the concentration of carbon dioxide generated by decomposition is different from that of carbon dioxide generated by combustion of fuel gas, and the related chemical formula is as follows:
MgCO3——MgO+CO2（g），
and calculating the functional relation between the carbon dioxide concentration and the actual temperature in the kiln and the actual gas quantity and the combustion-supporting air quantity through the multi-factor coupling effect, and controlling the calcining temperature in the kiln by using a method for controlling the actual gas quantity and the combustion-supporting air quantity so as to realize the automatic control of the magnesite tailing kiln calcining.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. An automatic control device for magnesite tailing calcination is characterized by comprising a kiln body (1), a feeding port (2), a storage bin (3), a discharging port (4), a gas pipeline (5), a combustion air pipeline (6), a thermocouple (7), a carbon dioxide concentration tester (8), an adjusting valve (9) and a controller (10);
kiln body (1) top is sealed, the upper portion is cylindricly, the lower part is the obconical form, the coniform part accounts for the kiln body (1) 1/10-1/5, pan feeding mouth (2) are located under the kiln body (1), communicate with each other with kiln body (1) below obconical part, kiln body (1) below obconical lateral wall is controlled and is respectively established gas pipeline (5) and combustion air pipeline (6), both sides about kiln body (1) top are located to two storage silo (3) branch, storage silo (3) bottom is equipped with discharge gate (4), kiln body (1) cylindric partial top, the lower part both sides, the middle part both sides, the lateral wall of shoulder both sides and storage silo (3) lateral wall all are equipped with thermocouple (7) and carbon dioxide concentration tester (8).
2. The magnesite tailing calcining automatic control device as claimed in claim 1, characterized in that a regulating valve (9) is arranged between the gas pipeline (5) and the combustion air pipeline (6) and the side wall of the inverted cone below the kiln body (1).
3. The automatic control device for magnesite tailing calcination as claimed in claim 1, wherein the thermocouple (7) and the carbon dioxide concentration tester (8) are electrically connected to the controller (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021738190.4U CN212962872U (en) | 2020-08-19 | 2020-08-19 | Magnesite tailing calcines automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021738190.4U CN212962872U (en) | 2020-08-19 | 2020-08-19 | Magnesite tailing calcines automatic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212962872U true CN212962872U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202021738190.4U Active CN212962872U (en) | 2020-08-19 | 2020-08-19 | Magnesite tailing calcines automatic control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212962872U (en) |
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2020
- 2020-08-19 CN CN202021738190.4U patent/CN212962872U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210817 Address after: Magnesite Industrial Park, pailou town, Haicheng City, Anshan City, Liaoning Province Patentee after: HAICHENG ZHONGHAO MAGNESIUM INDUSTRY Co.,Ltd. Address before: Nangou village, pailou town, Haicheng City, Anshan City, Liaoning Province Patentee before: Liaoning Chenhao Magnesium Industry Co.,Ltd. |
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| TR01 | Transfer of patent right |