CN211198619U - Energy-conserving efficient carbide production system - Google Patents

Energy-conserving efficient carbide production system Download PDF

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Publication number
CN211198619U
CN211198619U CN201922273594.4U CN201922273594U CN211198619U CN 211198619 U CN211198619 U CN 211198619U CN 201922273594 U CN201922273594 U CN 201922273594U CN 211198619 U CN211198619 U CN 211198619U
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bin
communicated
inlet
powder
lime
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CN201922273594.4U
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刘永博
李俊梅
李仁宝
任燕
王霞
梁虎林
郭春雨
刘莉
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Cnsg Jilantai Chlor Alkali Chemical Co ltd
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Cnsg Jilantai Chlor Alkali Chemical Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

The utility model discloses an energy-saving and efficient calcium carbide production system, which comprises a calcium lime bin, a lime kiln, a lime proportioning bin, a carbon material bin, a dryer, a carbon material proportioning bin, a calcium carbide furnace, a flue gas purification device, a pressure pump, a hot blast stove, a dust collection device, a granule bin, a powder bin, a granule conveying fan and a powder conveying fan; the utility model provides dry high-temperature hot air drying and drying carbon materials by burning the carbon particles in the cyclone dust removal ash after the carbon materials are dried; supplying carbon powder supplementary fuel to the lime kiln by using carbon powder in the cloth bag fly ash after the carbon material is dried; not only reducing the economic loss caused by the external sales of the dry carbon powder in the calcium carbide production process; but also fully utilizes the heat value of the dry carbon powder; the production cost of the traditional method for providing the fuel of the lime kiln and the hot blast stove by adopting the pulverized coal is also reduced, and the method is suitable for popularization.

Description

Energy-conserving efficient carbide production system
The technical field is as follows:
the utility model relates to a carbide production system especially relates to an energy-conserving efficient carbide production system.
Background art:
the calcium carbide is produced by using hydrated lime and dry coke as raw materials and smelting the raw materials in a calcium carbide furnace to obtain the calcium carbide. Wherein, the slaked lime is prepared by roasting quicklime in a lime kiln at high temperature to obtain slaked lime; the dry coke is prepared by taking a carbon material as a raw material and drying the carbon material by a dryer.
In a conventional calcium carbide production system, pulverized coal is used as a fuel in a lime kiln, and a combustion improver is introduced for combustion to obtain high temperature for roasting the quicklime; the dryer takes hot air provided by a hot blast stove as a heat exchange medium, the hot blast stove also takes pulverized coal as fuel, and the pulverized coal needs to be purchased externally, so that the cost is high;
in addition, a large amount of dust removal ash is generated after the carbon materials are dried, and the components of the dust removal ash are carbon fine particles and carbon powder which are conveyed to a carbon material ash bin by a scraper for storage and takeout, so that the dust removal ash cannot be effectively utilized; the flue gas generated by the lime kiln is discharged after being treated, thereby causing the waste of energy.
The utility model has the following contents:
the utility model aims at providing an energy-conserving efficient carbide production system.
The utility model discloses by following technical scheme implement: an energy-saving and efficient calcium carbide production system comprises a quick lime bin, a lime kiln, a lime proportioning bin, a charcoal material bin, a dryer, a charcoal proportioning bin and a calcium carbide furnace, wherein an outlet of the quick lime bin is communicated with an inlet of the lime kiln, and an outlet of the lime kiln is communicated with an inlet of the lime proportioning bin; the outlet of the carbon material bin is communicated with the inlet of the dryer, and the outlet of the carbon material bin is communicated with the inlet of the carbon material proportioning bin; outlets of the lime proportioning bin and the carbon proportioning bin are both communicated with an inlet of the calcium carbide furnace;
the device also comprises a flue gas purification device, a pressure pump, a hot blast stove, a dust collection device, a granule bin, a powder bin, a granule conveying fan and a powder conveying fan;
the flue gas outlet of the calcium carbide furnace is communicated with the inlet of the flue gas purification device, and the exhaust port of the flue gas purification device is communicated with the inlet of the lime kiln through a flue gas pipe; the pressure pump is arranged on the flue gas pipe;
the flue gas outlet of the dryer is communicated with the inlet of a cyclone dust collector of the dust collecting device, the solid material outlet of the cyclone dust collector is communicated with a granule scraper conveyor, the discharge port of the granule scraper conveyor is communicated with the inlet of a granule bin, the outlet of the granule bin is communicated with the inlet of the hot blast stove through a pipeline, a granule conveying fan is arranged on the pipeline communicating the granule bin with the hot blast stove, and the gas outlet of the hot blast stove is communicated with the inlet of the dryer;
the solid material outlet of a bag-type dust collector of the dust collecting device is communicated with the inlet of the powder bin of the powder scraper, the outlet of the powder bin is communicated with the inlet of the lime kiln through a pipeline, and a powder conveying fan is arranged on the pipeline communicating the powder bin with the lime kiln.
Further, the device also comprises a carbon ash bin, wherein the inlet of the carbon ash bin is respectively communicated with the outlets of the aggregate scraper conveyor and the powder scraper conveyor.
Furthermore, the dust collecting device comprises a cyclone dust collector and a bag-type dust collector, and an exhaust port of the cyclone dust collector is communicated with an inlet of the bag-type dust collector.
Further, the flue gas purification device comprises any one or a combination of a plurality of cyclone dust collectors, bag-type dust collectors and electric dust collectors.
Further, the granule conveying fan and the powder conveying fan are roots fans.
The utility model has the advantages that: the utility model utilizes the burning of carbon particles (the particle diameter is 1-5mm and accounts for about 25%) in the cyclone dust removal ash after the carbon material is dried to provide dry high-temperature hot air drying and drying carbon material; carbon powder (100-; not only reducing the economic loss caused by the external sales of the dry carbon powder in the calcium carbide production process; but also fully utilizes the heat value of the dry carbon powder; the production cost of the traditional method for providing the fuel of the lime kiln and the hot blast stove by adopting the pulverized coal is also reduced, and the method is suitable for popularization.
The utility model discloses the flue gas of well carbide stove heats the lime in the flue gas returns the limekiln after purifying, make full use of the waste heat of flue gas, reduced the energy waste, saved manufacturing cost.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an energy-saving and efficient calcium carbide production system according to this embodiment.
In the figure: quick lime feed bin 1, lime kiln 2, lime proportioning bin 3, charcoal material feed bin 4, desiccator 5, charcoal material proportioning bin 6, carbide stove 7, gas cleaning device 8, force (forcing) pump 9, hot-blast furnace 10, dust collection device 11, aggregate storehouse 12, powder storehouse 13, aggregate conveying fan 14, powder conveying fan 15, charcoal material ash storehouse 16, aggregate scraper 17, powder scraper 18, cyclone 11.1, sack cleaner 11.2.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that 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 efforts belong to the protection scope of the present invention.
An energy-saving and efficient calcium carbide production system comprises a quick lime bin 1, a lime kiln 2, a lime proportioning bin 3, a charcoal material bin 4, a dryer 5, a charcoal material proportioning bin 6, a calcium carbide furnace 7, a flue gas purification device 8, a pressure pump 9, a hot blast stove 10, a dust collection device 11, a granule bin 12, a powder bin 13, a granule conveying fan 14, a powder conveying fan 15 and a charcoal material ash bin 16, wherein an outlet of the quick lime bin 1 is communicated with an inlet of the lime kiln 2, and an outlet of the lime kiln 2 is communicated with an inlet of the lime proportioning bin 3; the outlet of the carbon material bin 4 is communicated with the inlet of the dryer 5, and the outlet of the carbon material bin 4 is communicated with the inlet of the carbon material proportioning bin 6; the outlets of the lime proportioning bin 3 and the carbon proportioning bin 6 are both communicated with the inlet of the calcium carbide furnace 7;
the flue gas outlet of the calcium carbide furnace 7 is communicated with the inlet of a flue gas purification device 8, and the exhaust port of the flue gas purification device 8 is communicated with the inlet of the lime kiln 2 through a flue gas pipe; a pressure pump 9 is arranged on the flue gas pipe;
a flue gas outlet of the dryer 5 is communicated with an inlet of a cyclone dust collector 11.1 of the dust collecting device 11, a solid material outlet of the cyclone dust collector 11.1 is communicated with a granule scraper conveyor 17, a discharge port of the granule scraper conveyor 17 is communicated with an inlet of a granule bin 12, an outlet of the granule bin 12 is communicated with an inlet of a hot blast stove 10 through a pipeline, a granule conveying fan 14 is arranged on the pipeline communicating the granule bin 12 with the hot blast stove 10, and an air outlet of the hot blast stove 10 is communicated with the inlet of the dryer 5;
the outlet of the bag-type dust collector 11.2 of the dust collecting device 11 is communicated with the inlet of the powder bin 13 of the powder scraper 18, the outlet of the powder bin 13 is communicated with the inlet of the lime kiln 2 through a pipeline, and a powder conveying fan 15 is arranged on the pipeline communicating the powder bin 13 and the lime kiln 2.
The inlet of the carbon ash bin 16 is respectively communicated with the outlets of the granule scraper 17 and the powder scraper 18.
The dust collecting device 11 comprises a cyclone dust collector 11.1 and a bag-type dust collector 11.2, and an exhaust port of the cyclone dust collector 11.1 is communicated with an inlet of the bag-type dust collector 11.2.
In this embodiment, the dryer 5 is a drum dryer, the flue gas purification device 8 is any one of dry dust collectors, and the pellet conveyor fan 14 and the powder conveyor fan 15 are roots fans.
In the embodiment, the carbon material enters a roller material guiding area of a dryer 5, contacts with high-temperature hot air to evaporate water, enters a shoveling plate (material raising) area under the shoveling action of the material guiding plate to form a material raising state, contacts with the hot air, enters a discharging area through heat exchange, and slides to a discharging port in a rolling manner; moisture, carbon powder and carbon fine particles are quickly pumped away by the dust collecting device 11, the carbon fine particles and the carbon powder are respectively collected by the cyclone dust collector 11.1 and the bag dust collector 11.2 and respectively conveyed by the granule scraper 17 and the powder scraper 18 to finally serve as fuels for heating the carbon material and the quicklime; the charcoal ash bin 16 is provided as a backup storage device after a problem with the production system is occurring. Testing: the carbon material powder and the fine particles contain more than 70 percent of fixed carbon, more than 9 percent of volatile components and more than 6000 kilocalories/kilogram of heat productivity, and are fully utilized through modification.
After the system is put into use, 4121.2 tons of fly ash are used in the stone ash kiln 2 in 3 months in 2017 to 4 months in 2018 in total, and the original coal powder preparation system is stopped.
① saving electricity charge, 400KW (intermediate speed mill, draught fan, bucket elevator, dust catcher) × (4121.2 ton/2 ton/h) × 0.29.29 yuan/23.9 ten thousand yuan;
② the maintenance cost is saved by about 40 ten thousand yuan/year for equipment such as medium speed mill, induced draft fan, bucket elevator, dust remover and overhead travelling crane
③ use dust saving, 818.92 yuan/ton of charcoal granules (sold by blue charcoal drying and screening in 2017), 202.0 yuan/ton of charcoal dust (sold by dust removing dust in 2017);
4121.2 ton × 818.92 yuan/ton-4121.2 × 202.0.0 yuan/ton 254.2 ten thousand yuan
④ all produce effective benefits of 318.1 ten thousand yuan per year.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. An energy-saving and efficient calcium carbide production system comprises a quick lime bin, a lime kiln, a lime proportioning bin, a charcoal material bin, a dryer, a charcoal proportioning bin and a calcium carbide furnace, wherein an outlet of the quick lime bin is communicated with an inlet of the lime kiln, and an outlet of the lime kiln is communicated with an inlet of the lime proportioning bin; the outlet of the carbon material bin is communicated with the inlet of the dryer, and the outlet of the carbon material bin is communicated with the inlet of the carbon material proportioning bin; outlets of the lime proportioning bin and the carbon proportioning bin are both communicated with an inlet of the calcium carbide furnace;
the device is characterized by also comprising a flue gas purification device, a pressure pump, a hot blast stove, a dust collection device, a granule bin, a powder bin, a granule conveying fan and a powder conveying fan;
the flue gas outlet of the calcium carbide furnace is communicated with the inlet of the flue gas purification device, and the exhaust port of the flue gas purification device is communicated with the inlet of the lime kiln through a flue gas pipe; the pressure pump is arranged on the flue gas pipe;
the flue gas outlet of the dryer is communicated with the inlet of a cyclone dust collector of the dust collecting device, the solid material outlet of the cyclone dust collector is communicated with a granule scraper conveyor, the discharge port of the granule scraper conveyor is communicated with the inlet of a granule bin, the outlet of the granule bin is communicated with the inlet of the hot blast stove through a pipeline, a granule conveying fan is arranged on the pipeline communicating the granule bin with the hot blast stove, and the gas outlet of the hot blast stove is communicated with the inlet of the dryer;
the solid material outlet of a bag-type dust collector of the dust collecting device is communicated with the inlet of the powder bin of the powder scraper, the outlet of the powder bin is communicated with the inlet of the lime kiln through a pipeline, and a powder conveying fan is arranged on the pipeline communicating the powder bin with the lime kiln.
2. The energy-saving and efficient calcium carbide production system according to claim 1, further comprising a carbon ash bin, wherein an inlet of the carbon ash bin is respectively communicated with outlets of the aggregate scraper and the powder scraper.
3. The energy-saving and efficient calcium carbide production system according to claim 1, wherein the dust collection device comprises a cyclone dust collector and a bag-type dust collector, and an exhaust port of the cyclone dust collector is communicated with an inlet of the bag-type dust collector.
4. The energy-saving and efficient calcium carbide production system according to claim 1, wherein the flue gas purification device comprises any one or a combination of a cyclone dust collector, a bag-type dust collector and an electric dust collector.
5. The energy-saving and efficient calcium carbide production system as claimed in claim 1, wherein the pellet conveyor fan and the powder conveyor fan are roots fans.
CN201922273594.4U 2019-12-17 2019-12-17 Energy-conserving efficient carbide production system Active CN211198619U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922273594.4U CN211198619U (en) 2019-12-17 2019-12-17 Energy-conserving efficient carbide production system

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Application Number Priority Date Filing Date Title
CN201922273594.4U CN211198619U (en) 2019-12-17 2019-12-17 Energy-conserving efficient carbide production system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112265994A (en) * 2020-10-23 2021-01-26 内蒙古君正化工有限责任公司 Energy-concerving and environment-protective type carbide production system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112265994A (en) * 2020-10-23 2021-01-26 内蒙古君正化工有限责任公司 Energy-concerving and environment-protective type carbide production system

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