CN204752218U - Carbide stove - Google Patents
Carbide stove Download PDFInfo
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- CN204752218U CN204752218U CN201520241569.7U CN201520241569U CN204752218U CN 204752218 U CN204752218 U CN 204752218U CN 201520241569 U CN201520241569 U CN 201520241569U CN 204752218 U CN204752218 U CN 204752218U
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- pyrolysis
- calcium carbide
- carbide
- shaft
- chamber
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Abstract
The utility model provides a carbide stove, include: pyrolysis shaft, electric stove stove bottom, the import of pelletizing material, the export of pyrolysis gas and the export of carbide liquid have the pyrolysis cavity in the pyrolysis shaft, the electric stove stove bottom has carbide production cavity, and the electric stove stove bottom has heating device, and the top of electric stove stove bottom links to each other with the lower extreme of pyrolysis shaft to pyrolysis cavity and carbide production cavity intercommunication, the top at the pyrolysis shaft is established in the import of pelletizing material to add the pelletizing material that contains fine coal and lime in to the pyrolysis cavity from the top of pyrolysis shaft, the export of pyrolysis gas is established on the upper portion of pyrolysis shaft, and the lower part at the electric stove stove bottom is established in the export of carbide liquid. Adopt this carbide stove can show the reduction energy consumption, improve preparation carbide efficiency.
Description
Technical field
The utility model belongs to calcium carbide production field, and specifically, the utility model relates to novel 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 traditional calcium carbide production technique, the unslaked lime that the production of calcium carbide uses block granular always and carbon materials react and generate calcium carbide more than 2000 DEG C, high energy consumption, high cost, and energy consumption height is because block stock specific surface area is little, making needs comparatively high temps just can complete reaction.Have research display, reduce raw material granularity, calcium carbide smelting temperature can be reduced to about 1700 DEG C.Therefore, the reduction of raw material particle size, is conducive to reducing temperature of reaction, reduces energy consumption.Meanwhile, the blue charcoal of traditional electrical stone process selection quality block and lime, the blue charcoal of powdery and lime have to process at a low price, indirectly increase calcium carbide production cost.
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;
EAF bottom, described EAF bottom has calcium carbide and produces chamber, and described EAF bottom has heating unit, and the top of described EAF 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 EAF bottom.
Thus, the furnace of calcium carbide of the utility model above-described embodiment has pyrolysis shaft and EAF 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 EAF bottom produce chamber, the calcium carbide raw materials for production of high-temperature tail 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 tail gas heat quantity 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, described heating unit is three-phase electrode.
In embodiments more of the present utility model, described carbide liquid outlet comprises multiple, and described multiple carbide liquid outlet is radially oppositely arranged.
In embodiments more of the present utility model, described pyrolysis shaft is connected by excessive portion with described EAF bottom, and the diameter in described excessive portion first reduces rear increase 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, EAF bottom 20, pelletizing material inlet 30, pyrolysis gas outlet 40 and carbide liquid outlet 50, wherein, has pyrolysis chamber 11 in pyrolysis shaft 10; EAF bottom 20 has calcium carbide and produces chamber 21, and EAF bottom 20 has heating unit 22, and the top of EAF 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 EAF bottom 20.
Thus, the furnace of calcium carbide of the utility model above-described embodiment has pyrolysis shaft 10 and EAF 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 EAF bottom 20 and is communicated with, the calcium carbide raw materials for production of high-temperature tail 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 tail gas heat quantity 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 heating unit 22 in above-mentioned EAF bottom 20 can be three-phase electrode.Heating efficiency can be improved thus.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 EAF bottom 20 can be reduced further thus, more than 2000 degrees Celsius temperature needed for traditional production calcium carbide can be down to 1750 degrees Celsius.
According to specific embodiment of the utility model, the carbide liquid outlet 50 being positioned at EAF bottom 20 bottom can comprise multiple, and multiple carbide liquid outlet is radially oppositely arranged.The efficiency of discharging calcium carbide can be improved thus.
According to specific embodiment of the utility model, pyrolysis shaft is connected by excessive portion with described EAF bottom, and the diameter in described excessive portion first reduces rear increase along the direction of charging.Material after can controlling pyrolysis thus enters the speed that calcium carbide produces chamber 21.Owing to producing in chamber at calcium carbide, three electrode central region temperature are the highest, and material is the fastest at middle part blanking velocity, therefore excessively portion's diameter first reduces rear increase along the direction of charging, and after can controlling pyrolysis on the one hand, material enters the speed of calcium carbide chamber; On the other hand, can make charging in the middle part of material after pyrolysis, material directly enters high-temperature zone, reacts, and weakens body of heater rim effect.
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.According to specific embodiment of the utility model, 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; Start the pelletizing material of heating unit to calcium carbide production chamber indoor heat and calcium carbide smelting reaction occur, to obtain carbide liquid and to produce high-temperature tail gas; Make high-temperature tail 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, adopt preparing calcium carbide and pyrolytic process and calcium carbide production technique can being organically combined of above-described embodiment furnace of calcium carbide, achieve the serialization of technique.The high-temperature tail gas wherein taking full advantage of calcium carbide smelting generation carries out pyrolysis processing to calcium carbide raw materials for production, achieves tail gas heat quantity 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 tail gas of the indoor generation of calcium carbide production chamber is 600-1000 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, it is carry out completing for 5-30 minute under 1750-2200 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 12 minutes under 1900 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 not more than 20 microns, thus, by powdery carbon back raw material and calcium based raw material mixing moulding, greatly adds 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.
In addition, powdery carbon back raw material and calcium based raw material are made pelletizing material by the utility model in advance, and then can make to discharge out of the furnace gas substantially without dust, raw material carries out pyrolytic reaction at pyrolysis section simultaneously, heat comes from the calcium carbide reaction end gas of hypomere, integrated artistic gaseous product composition is pure, tolerance is relatively less, economy is high, and subsequent purification unit burden is less.
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 900 DEG C high-temperature tail 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 adopts three-phase electrode, produce open arc heating raw, calcium carbide formation reaction can be there is in raw material under 1900 degree celsius temperature, 12 minutes reaction times, high-temperature tail gas is upwards as pyrolysis section thermal source, and liquid calcium carbide product is by the liquid discharging of bottom discharge port.Produce one ton of consumption of calcium carbide electric power 2850kwh, the time used needs 25-50min from being fed to carbide liquid outflow.
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.
In traditional calcium carbide production technique, producing ton calcium carbide current consumption is 3200kwh, and producing the ton calcium carbide time is 40 ~ 60 minutes, and adopt above-mentioned two-part furnace of calcium carbide, producing ton calcium carbide current consumption is 2850kwh, reduces current consumption 350kwh, and producing the calcium carbide time is 25-50min.
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 (4)
1. a furnace of calcium carbide, is characterized in that, comprising:
Pyrolysis shaft, has pyrolysis chamber in described pyrolysis shaft;
EAF bottom, described EAF bottom has calcium carbide and produces chamber, and described EAF bottom has heating unit, and the top of described EAF 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 EAF bottom.
2. furnace of calcium carbide according to claim 1, is characterized in that, described heating unit is three-phase electrode.
3. furnace of calcium carbide according to claim 1, is characterized in that, described carbide liquid outlet comprises multiple, and described multiple carbide liquid outlet is radially oppositely arranged.
4. furnace of calcium carbide according to claim 1, is characterized in that, described pyrolysis shaft is connected by excessive portion with described EAF bottom, and the diameter in described excessive portion first reduces rear increase along the direction of charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241569.7U CN204752218U (en) | 2015-04-20 | 2015-04-20 | Carbide stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241569.7U CN204752218U (en) | 2015-04-20 | 2015-04-20 | Carbide stove |
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| CN204752218U true CN204752218U (en) | 2015-11-11 |
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| CN201520241569.7U Expired - Fee Related CN204752218U (en) | 2015-04-20 | 2015-04-20 | Carbide stove |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843707A (en) * | 2015-04-20 | 2015-08-19 | 北京神雾环境能源科技集团股份有限公司 | Calcium carbide furnace and method for manufacturing calcium carbide by utilization of calcium carbide furnace |
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2015
- 2015-04-20 CN CN201520241569.7U patent/CN204752218U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843707A (en) * | 2015-04-20 | 2015-08-19 | 北京神雾环境能源科技集团股份有限公司 | Calcium carbide furnace and method for manufacturing calcium carbide by utilization of calcium carbide furnace |
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Legal Events
| 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: 20160129 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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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Method of purifying calcium carbide furnace gas Effective date of registration: 20180702 Granted publication date: 20151111 Pledgee: Bank of Tianjin, Limited by Share Ltd, Beijing branch Pledgor: SHENWU ENVIRONMENTAL TECHNOLOGY CO., LTD. Registration number: 2018990000515 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190129 Granted publication date: 20151111 Pledgee: Bank of Tianjin, Limited by Share Ltd, Beijing branch Pledgor: SHENWU ENVIRONMENTAL TECHNOLOGY CO., LTD. Registration number: 2018990000515 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Method of purifying calcium carbide furnace gas Effective date of registration: 20190129 Granted publication date: 20151111 Pledgee: Bank of Tianjin, Limited by Share Ltd, Beijing branch Pledgor: SHENWU ENVIRONMENTAL TECHNOLOGY CO., LTD. Registration number: 2019990000100 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20210420 |