CN204727615U - Furnace of calcium carbide - Google Patents
Furnace of calcium carbide Download PDFInfo
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- CN204727615U CN204727615U CN201520241233.0U CN201520241233U CN204727615U CN 204727615 U CN204727615 U CN 204727615U CN 201520241233 U CN201520241233 U CN 201520241233U CN 204727615 U CN204727615 U CN 204727615U
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- pyrolysis
- calcium carbide
- furnace
- chamber
- combustion gas
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Abstract
The utility model proposes a kind of furnace of calcium carbide, comprising: pyrolysis shaft, combustion gas melting furnace furnace bottom, pelletizing material inlet, pyrolysis gas outlet and carbide liquid export, and have pyrolysis chamber in pyrolysis shaft; Combustion gas melting furnace furnace bottom has calcium carbide and produces chamber, and the top of combustion gas melting furnace furnace bottom is connected with the lower end of pyrolysis shaft, so that pyrolysis chamber and calcium carbide produce chamber; Pelletizing material inlet is located at the top of pyrolysis shaft, to add the pelletizing material containing fine coal and lime from the top of pyrolysis shaft in pyrolysis chamber; Pyrolysis gas outlet is located at the top of pyrolysis shaft, and carbide liquid outlet is located at the bottom of combustion gas melting furnace furnace bottom.Adopt this furnace of calcium carbide significantly can reduce energy consumption, improve and prepare calcium carbide efficiency.
Description
Technical field
The utility model belongs to calcium carbide production field, and specifically, the utility model relates to furnace of calcium carbide.
Background technology
Along with the development of modern industry, calcium carbide industry and organic synthesis industry are closely connected, particularly PVC Industry, and the PVC (polyvinyl chloride) of China more than 70% produces and comes from carbide acetylene.Due to Market Reasons, calcium carbide is sold and is affected, and therefore how to reduce the bottleneck that calcium carbide production cost becomes calcium carbide industry development.
Current calcium carbide production technique mainly contains electric heating process and the hot method of oxygen two kinds, all needs to use block high grade coke or blue charcoal as reductive agent.On the one hand, coke and blue charcoal hold at high price, and improve raw materials cost; On the other hand, coke and blue charcoal, in transportation, produce a large amount of powders, as calcium carbide raw materials for production, can not improve raw materials cost further.Adopt block stock, because block stock contact area is little, seriously limit raw material heat transfer process, industrial reaction need at high temperature be carried out (2000 ~ 2300 DEG C), the power consumption of calcium carbide per ton (purity 80.6%), up to 3250kwh, is genuine " highly energy-consuming " industry.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of furnace of calcium carbide.
According to an aspect of the present utility model, the utility model proposes a kind of furnace of calcium carbide, comprising:
Pyrolysis shaft, has pyrolysis chamber in described pyrolysis shaft;
Combustion gas melting furnace furnace bottom, described combustion gas melting furnace furnace bottom has calcium carbide and produces chamber, and the top of described combustion gas melting furnace furnace bottom is connected with the lower end of described pyrolysis shaft, so that described pyrolysis chamber and described calcium carbide produce chamber;
Pelletizing material inlet, described pelletizing material inlet is located at the top of described pyrolysis shaft, to add the pelletizing material containing fine coal and lime from the top of described pyrolysis shaft in described pyrolysis chamber;
Pyrolysis gas outlet, described pyrolysis gas outlet is located at the top of described pyrolysis shaft,
Carbide liquid exports, and described carbide liquid outlet is located at the bottom of described combustion gas melting furnace furnace bottom.
Thus, the furnace of calcium carbide of the utility model above-described embodiment has pyrolysis shaft and combustion gas melting furnace furnace bottom two sections, and then pyrolytic process and calcium carbide production technique is organically combined in a set of system for producing calcium carbide, achieves the integration of equipment.Wherein the pyrolysis chamber of epimere pyrolysis shaft and the calcium carbide of hypomere combustion gas melting furnace furnace bottom produce chamber, the calcium carbide raw materials for production of high-temperature flue gas to pyrolysis chamber of the indoor generation of the calcium carbide production chamber being positioned at hypomere can be utilized thus to carry out pyrolysis processing, achieve flue gas heat to utilize, improve overall thermal efficiency.In addition, with the high-temp solid material of a large amount of sensible heat in pyrolysis chamber, directly enter calcium carbide production chamber indoor, distance is short, thermosteresis is little, effectively can reduce calcium carbide section energy consumption thus, and improve integrated artistic thermo-efficiency.
In addition, following additional technical characteristic can also be had according to the furnace of calcium carbide of the utility model above-described embodiment:
In embodiments more of the present utility model, the sidewall of described combustion gas melting furnace has multiple burner.
In embodiments more of the present utility model, described pyrolysis shaft is connected by excessive portion with described combustion gas melting furnace furnace bottom, and the diameter in described excessive portion reduces gradually along the direction of charging.
Accompanying drawing explanation
Fig. 1 is the structural representation of the furnace of calcium carbide according to the utility model embodiment.
Embodiment
The furnace of calcium carbide of the utility model embodiment is described in detail below with reference to Fig. 1.
Furnace of calcium carbide according to the utility model embodiment specifically comprises: pyrolysis shaft 10, combustion gas melting furnace furnace bottom 20, pelletizing material inlet 30, pyrolysis gas outlet 40 and carbide liquid outlet 50, wherein, has pyrolysis chamber 11 in pyrolysis shaft 10; Combustion gas melting furnace furnace bottom 20 has calcium carbide and produces chamber 21, and the top of combustion gas melting furnace furnace bottom 20 is connected with the lower end of pyrolysis shaft 10, is communicated with so that pyrolysis chamber 11 and calcium carbide produce chamber 21; Pelletizing material inlet 30 is located at the top of pyrolysis shaft 10, to add the pelletizing material containing fine coal and lime from the top of pyrolysis shaft 10 in pyrolysis chamber 11; Pyrolysis gas outlet 40 is located at the top of pyrolysis shaft 10, and carbide liquid outlet 50 is located at the bottom of combustion gas melting furnace furnace bottom 20.
Thus, the furnace of calcium carbide of the utility model above-described embodiment has pyrolysis shaft 10 and combustion gas melting furnace furnace bottom 20 two sections, and then pyrolytic process and calcium carbide production technique is organically combined in a set of system for producing calcium carbide, achieves the integration of equipment.Wherein the pyrolysis chamber 11 of epimere pyrolysis shaft 10 is produced chamber 21 with the calcium carbide of hypomere combustion gas melting furnace furnace bottom 20 and is communicated with, the calcium carbide raw materials for production of high-temperature flue gas to pyrolysis chamber 11 that the calcium carbide being positioned at hypomere can be utilized thus to produce chamber 21 generation carry out pyrolysis processing, achieve flue gas heat to utilize, improve overall thermal efficiency.In addition, with the high-temp solid material of a large amount of sensible heat in pyrolysis chamber 11, directly enter calcium carbide and produce in chamber 21, distance is short, thermosteresis is little, effectively can reduce calcium carbide section energy consumption thus, and improve integrated artistic thermo-efficiency.
According to specific embodiment of the utility model, the sidewall of above-mentioned combustion gas melting furnace 20 has multiple burner 22.Strictly can control furnace atmosphere thus, ensure that in stove be oxygen deficient atmospheres, avoid carbon material scaling loss in stove.According to specific embodiment of the utility model, the raw material producing generation calcium carbide reaction in chamber 21 owing to entering calcium carbide is through after pyrolysis chamber 11 pyrolysis, energy consumption in combustion gas melting furnace furnace bottom 20 can be reduced further thus, adopt powder raw material simultaneously, greatly add effective contact area of carbon back raw material and calcium based raw material, more than 2000 degrees Celsius temperature needed for traditional production calcium carbide can be down to 1400-1750 degree Celsius.
According to specific embodiment of the utility model, pyrolysis shaft is connected by excessive portion with described combustion gas melting furnace furnace bottom, and the diameter in described excessive portion reduces gradually along the direction of charging.Material after can controlling pyrolysis thus enters the speed that calcium carbide produces chamber 21.
Be described below in detail and adopt the furnace of calcium carbide of the utility model above-described embodiment to prepare the method for calcium carbide.The method comprises: add the pelletizing material containing fine coal and lime in furnace of calcium carbide from pelletizing material inlet, makes pyrolysis chamber and calcium carbide production chamber indoor filling pelletizing material; Heat the pelletizing material of calcium carbide production chamber indoor and calcium carbide occurs and smelt reaction, to obtain carbide liquid, fuel gas buring produces high-temperature flue gas; Make high-temperature flue gas upwards enter pyrolysis chamber and pyrolysis processing is carried out to the pelletizing material in pyrolysis chamber; And carbide liquid is discharged from carbide liquid outlet.
Thus, pyrolytic process and calcium carbide production technique organically combine by the method preparing calcium carbide of the utility model above-described embodiment, achieve the serialization of technique.The high-temperature flue gas wherein taking full advantage of calcium carbide smelting generation carries out pyrolysis processing to calcium carbide raw materials for production, achieves flue gas heat and utilizes, improve overall thermal efficiency.In addition, with the high-temp solid material of a large amount of sensible heat after pyrolysis, directly enter calcium carbide production chamber indoor and smelt, distance is short, thermosteresis is little, effectively can reduce calcium carbide section energy consumption thus, and improve integrated artistic thermo-efficiency.
According to specific embodiment of the utility model, the temperature of the high-temperature flue gas of the indoor generation of calcium carbide production chamber is 1000-1400 degree Celsius.Make full use of this high-temperature flue gas thus and pyrolysis processing is carried out to the pelletizing material before calcium carbide reaction.According to specific embodiment of the utility model, above-mentioned high-temperature flue gas is utilized to carry out pyrolysis processing to pelletizing material, can obtain artificial petroleum, artificial natural gas and pyrolysis solid product, wherein, pyrolysis solid product contains the one in unslaked lime and coke, semicoke, carbon black.What pyrolytic process made carbon back raw material contact with calcium based raw material thus is more tight, advantageously temperature and the tap to tap time of reducing subsequent smelting, and then significantly reduces production energy consumption.
According to specific embodiment of the utility model, the temperature of the pelletizing material after described pyrolysis processing is 750-950 degree Celsius.Reaction can be smelted for next step ground calcium carbide thus and an initial temperature is provided, reduce and smelt energy consumption.
According to specific embodiment of the utility model, it is carry out completing for 5-30 minute under 1400-1750 degree Celsius that above-mentioned calcium carbide smelts reaction.Can adopt thus the furnace of calcium carbide of the utility model above-described embodiment prepare calcium carbide can significantly reduce calcium carbide reaction temperature, Reaction time shorten, so save energy consumption.Preferably, calcium carbide smelts reaction is carry out completing for 15 minutes under 1750 degrees Celsius.
According to specific embodiment of the utility model, the fine coal in the described pelletizing material containing fine coal and lime is low order raw coal in powdery.The middle low order raw coal of powdery can be made full use of thus, and then can raw materials cost be reduced.
According to specific embodiment of the utility model, the median size of described fine coal and lime is 10 microns.Thus, by powdery carbon back raw material and calcium based raw material mixing moulding, greatly add the contact area of two kinds of raw materials, calcium carbide smelting temperature is significantly reduced.According to specific embodiment of the utility model, be that the temperature of metallurgy can be down to 1750 degrees Celsius by the powdery carbon back raw material of 10 microns and calcium based raw material by choosing median size.More traditional smelting temperature preparing calcium carbide is 2000 ~ 2200 degrees Celsius and significantly reduces energy consumption.
Embodiment
The utility model a kind of pyrolysis of coal is smelted with calcium carbide the furnace of calcium carbide combined, and main body is divided into two sections: epimere is pyrolysis section, and hypomere is calcium carbide production section.
Epimere: be provided with pelletizing material inlet and pyrolysis gas outlet.After fine coal and lime are shaping according to a certain percentage, pelletizing material enters in epimere pyrolysis chamber along with the opening and closing of pelletizing material inlet, and pelletizing material moves down with action of gravity in stove.Destructive distillation thermal source comes from about the 1350 DEG C high-temperature flue gas that hypomere calcium carbide production section produces, the coal gas that the pyrolysis of pelletizing material produces is discharged by the gas exit being positioned at two-stage furnace top, coal gas is by pelletizing material preheating zone, coal gas of high temperature is by the preheating of pelletizing material, and pelletizing material produces inherent filtration effect to dust in coal gas simultaneously.
Hypomere: the hot solids product after pyrolysis enters hypomere calcium carbide production section, calcium carbide production section is combustion gas melting furnace, strict control furnace atmosphere, ensure that in stove be oxygen deficient atmospheres, after pyrolysis, solid product reaches 800 degrees centigrade and enters in combustion gas melting furnace, calcium carbide formation reaction occurs under 1750 degree celsius temperature, reaction times 15min, calcium carbide product is discharged by bottom combustion gas melting furnace.
Two-part furnace of calcium carbide, organically combines pyrolytic process and calcium carbide production technique, achieves whole utilizations of powder raw material, powdery carbon materials combines with lime, the effective contact area of very big increase, reduces calcium carbide temperature of reaction, and can obtain by-product coke oil and gas.After pyrolysis, solid product is with a large amount of sensible heat, enters in hypomere furnace of calcium carbide, can significantly reduce furnace of calcium carbide energy consumption.Therefore calcium carbide produced by two-part furnace of calcium carbide, can significantly reduce furnace of calcium carbide energy consumption and production cost.On the other hand, hypomere calcium carbide production section does not adopt traditional electric furnace, and adopts combustion gas melting furnace, uses combustion gas to replace electric energy, reduces production cost further.Therefore calcium carbide produced by two-part furnace of calcium carbide, can significantly reduce furnace of calcium carbide energy consumption and production cost.
Usual traditional calcium carbide production technique, produces the power consumption of ton calcium carbide and is about 3200kwh, and two-part furnace of calcium carbide of the present utility model, use fuel gas replacing whole calcium carbide at a low price to produce electric energy used, effectively can improve the efficiency of energy utilization of technique.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term need not for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (3)
1. a furnace of calcium carbide, is characterized in that, comprising:
Pyrolysis shaft, has pyrolysis chamber in described pyrolysis shaft;
Combustion gas melting furnace furnace bottom, described combustion gas melting furnace furnace bottom has calcium carbide and produces chamber, and the top of described combustion gas melting furnace furnace bottom is connected with the lower end of described pyrolysis shaft, so that described pyrolysis chamber and described calcium carbide produce chamber;
Pelletizing material inlet, described pelletizing material inlet is located at the top of described pyrolysis shaft, to add the pelletizing material containing fine coal and lime from the top of described pyrolysis shaft in described pyrolysis chamber;
Pyrolysis gas outlet, described pyrolysis gas outlet is located at the top of described pyrolysis shaft;
Carbide liquid exports, and described carbide liquid outlet is located at the bottom of described combustion gas melting furnace furnace bottom.
2. furnace of calcium carbide according to claim 1, is characterized in that, the sidewall of described combustion gas melting furnace has multiple burner.
3. furnace of calcium carbide according to claim 1, is characterized in that, described pyrolysis shaft is connected by excessive portion with described combustion gas melting furnace furnace bottom, and the diameter in described excessive portion reduces gradually along the direction of charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241233.0U CN204727615U (en) | 2015-04-20 | 2015-04-20 | Furnace of calcium carbide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241233.0U CN204727615U (en) | 2015-04-20 | 2015-04-20 | Furnace of calcium carbide |
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| CN204727615U true CN204727615U (en) | 2015-10-28 |
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| CN201520241233.0U Expired - Fee Related CN204727615U (en) | 2015-04-20 | 2015-04-20 | Furnace of calcium carbide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860314A (en) * | 2015-04-20 | 2015-08-26 | 北京神雾环境能源科技集团股份有限公司 | Calcium carbide furnace and method for preparing calcium carbide with calcium carbide furnace |
| CN105293496A (en) * | 2015-11-04 | 2016-02-03 | 中冶南方工程技术有限公司 | Furnace and system for smelting calcium carbide by combining oxygen with electricity |
| CN106010596A (en) * | 2016-07-12 | 2016-10-12 | 湖南警察学院 | Magnet pyrolysis reactor |
-
2015
- 2015-04-20 CN CN201520241233.0U patent/CN204727615U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860314A (en) * | 2015-04-20 | 2015-08-26 | 北京神雾环境能源科技集团股份有限公司 | Calcium carbide furnace and method for preparing calcium carbide with calcium carbide furnace |
| CN105293496A (en) * | 2015-11-04 | 2016-02-03 | 中冶南方工程技术有限公司 | Furnace and system for smelting calcium carbide by combining oxygen with electricity |
| CN106010596A (en) * | 2016-07-12 | 2016-10-12 | 湖南警察学院 | Magnet pyrolysis reactor |
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| Date | Code | Title | Description |
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| 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: 20160128 Address after: 100016 Beijing City, Chaoyang District Road No. 5, building 15, floor 7 block C Patentee after: SHENWU ENVIRONMENTAL TECHNOLOGY CO., LTD. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20190420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |