CN105217632A - Calcium carbide sensible heat recovery system - Google Patents
Calcium carbide sensible heat recovery system Download PDFInfo
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- CN105217632A CN105217632A CN201510595654.8A CN201510595654A CN105217632A CN 105217632 A CN105217632 A CN 105217632A CN 201510595654 A CN201510595654 A CN 201510595654A CN 105217632 A CN105217632 A CN 105217632A
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- calcium carbide
- heat recovery
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- shell device
- tunnel furnace
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses a kind of calcium carbide sensible heat recovery system, comprise roller-way, speed condensation shell device, roll-type tunnel furnace and waste heat recovery apparatus, wherein, speed condensation shell device is installed on roller-way, speed condensation shell device is cooled by water coolant, roll-type tunnel furnace is arranged on roller-way, recirculation blower is installed to carry out circulating air cooling to calcium carbide in roll-type tunnel furnace, waste heat recovery apparatus is connected to carry out waste heat recovery by pipeline with roll-type tunnel furnace, high-temperature liquid state calcium carbide injects fast condensation shell device by tank body and cools for the first time, fast condensation shell device is transported in roll-type tunnel furnace to cool further calcium carbide by roller-way.The calcium carbide sensible heat recovery system that the present invention proposes, do not rely on come out of the stove track and air cooling across, overcome traditional process of cooling and need take a large amount of production plant area, delay the drawbacks such as rhythm of production.
Description
Technical field
The present invention relates to calcium carbide production technical field of auxiliary equipment, particularly relate to a kind of calcium carbide sensible heat recovery system.
Background technology
Calcium carbide is as the important source material in PVC preparation process, and its preparation process develops into meticulous automatic production pattern by extensive family workshop type.Now, total closed type furnace of calcium carbide is produced and is replaced the open and mode of production that is internal combustion type gradually, and type of furnace transformer also develops into 81MVA from 300kVA.The concentration degree of the further acceleration industry that maximizes, also impels the overall equipment technology of furnace of calcium carbide constantly to advance.But because calcium carbide production process needs the lime and the coke that consume a large amount of normal temperature, with chemical reaction heat absorption, electrosmelting certainly will cause power consumption large, pollute the drawback such as heavily.Requiring instantly strict all the more in energy-conserving and environment-protective, how to promote the environmental friendliness degree of furnace of calcium carbide equipment, is a direction being worth constantly exploring.
In tradition calcium carbide production process, every 1h goes out a calcium carbide.High-temperature liquid state calcium carbide pours in calcium carbide pot by plug for outlet, under the traction of carbide pushcarts, is transported to cooled region natural air cooling along track, and after cooling 3 ~ 4h, crust high temperature calcium carbide is hung calcium carbide pot by crane, transports air cooling zone to and continues cooling 24 ~ 36h.Track process of cooling needs to take plenty of time and space, and cause out furnace system to need at least to arrange that two across row, track are covered with calcium carbide pot, plant area cannot be utilized effectively, and once invests huge, and rhythm of production also cannot promote further.Meanwhile, under such operator scheme, cannot do further utilization to acetylene stones sensible heat, energy wastage is obvious.
Summary of the invention
Main purpose of the present invention is to provide a kind of calcium carbide sensible heat recovery system, is intended to avoid reclaiming acetylene stones sensible heat when taking plenty of time and space.
For achieving the above object, the invention provides a kind of calcium carbide sensible heat recovery system, comprise roller-way, fast condensation shell device, roll-type tunnel furnace and waste heat recovery apparatus, wherein,
Described fast condensation shell device is installed on roller-way, described fast condensation shell device is cooled by water coolant, described roll-type tunnel furnace is arranged on roller-way, recirculation blower is installed to carry out circulating air cooling to calcium carbide in described roll-type tunnel furnace, described waste heat recovery apparatus is connected to carry out waste heat recovery by pipeline with roll-type tunnel furnace, high-temperature liquid state calcium carbide injects described fast condensation shell device by tank body and cools for the first time, and fast condensation shell device is transported in roll-type tunnel furnace to cool further calcium carbide by described roller-way.
Preferably, described waste heat recovery apparatus comprises waste heat boiler and drying kiln, and the high-temperature gas in early stage in described roll-type tunnel furnace passes in described waste heat boiler and generates electricity, and in the later stage, cryogenic gas passes into drying kiln drying.
Preferably, described fast condensation shell device comprises base and is positioned at the upper frame above this base, wherein, described upper frame is formed with multiple groove for holding calcium carbide, the bottom of this groove is sealed by described base, described upper frame is provided with cooling water pipeline for holding water coolant and the cooling water inlet be communicated with this cooling water pipeline and cooling water outlet, described base is provided with aqua storage tank for holding water coolant and the water inlet pipe be communicated with this aqua storage tank and rising pipe, described cooling water pipeline is circular layout on the sidewall of described upper frame, described cooling water pipeline is provided with multiple, independent setting between multiple described cooling water pipeline, described in each, cooling water pipeline correspondence arranges a cooling water inlet and cooling water outlet.
Preferably, described base and upper frame are for removably connecting.
Preferably, described upper frame material is stainless steel, and the wall thickness of the inner side-wall of described upper frame is 200 ~ 400mm, and the width of described groove is 200 ~ 600mm.
Preferably, the quantity of described groove is 4 ~ 16.
Preferably, described base material is stainless steel, and described base is rectangular parallelepiped, and its length is 4.0 ~ 8.0m, and width is 2.0m ~ 4.0m, thickness 200 ~ 400mm.
Preferably, described water inlet pipe and rising pipe are provided with multiple, and described base is homonymy water inlet, offside water exit mode, and described upper frame is homonymy water inlet, homonymy water exit mode.
The calcium carbide sensible heat recovery system that the present invention proposes, by fast condensation shell device, calcium carbide is tentatively cooled, the high temperature calcium carbide of shelly of congealing into supports without the need to calcium carbide pot, under roller-way conveying effect, calcium carbide is entered kiln and gas direct heat exchange by fast condensation shell device, high-temperature gas directly sends into Waste Heat Generation, cryogenic gas send limestone kiln dry, and heat utilization efficiency is high.In addition, native system is arranged in calcium carbide production side, do not rely on come out of the stove track and air cooling across, overcome traditional process of cooling and need take a large amount of production plant area, delay the drawbacks such as rhythm of production.In addition, by rationally arranging the fast cooling water flow of condensation shell device and the power of recirculation blower, can within a cycle of coming out of the stove the liquid calcium carbide of cooling down high-temperature, once invest for reducing, accelerate rhythm of production, the market competitiveness of improving product has very important meaning.
Accompanying drawing explanation
Fig. 1 is the structural representation of calcium carbide sensible heat recovery system preferred embodiment of the present invention.
In figure, 1-furnace of calcium carbide, 2-plug for outlet, 3-tank body, 4-speed condensation shell device, 5-roller-way, 6-roll-type tunnel furnace, 7-waste heat boiler, 8-drying kiln, 9-recirculation blower, 10-truck.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
It should be noted that, in describing the invention, term " transverse direction ", " longitudinal direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, be not 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 limitation of the present invention.
With reference to the structural representation that Fig. 1, Fig. 1 are calcium carbide sensible heat recovery system preferred embodiment of the present invention.
In this preferred embodiment, a kind of calcium carbide sensible heat recovery system, comprises roller-way 5, fast condensation shell device 4, roll-type tunnel furnace 6 and waste heat recovery apparatus, wherein,
Speed condensation shell device 4 is installed on roller-way 5, speed condensation shell device 4 is cooled by water coolant, roll-type tunnel furnace 6 is arranged on roller-way 5, recirculation blower 9 is installed to carry out circulating air cooling to calcium carbide in roll-type tunnel furnace 6, waste heat recovery apparatus is connected to carry out waste heat recovery (cooling air after heat exchanging absorbs heat) by pipeline with roll-type tunnel furnace 6, high-temperature liquid state calcium carbide injects fast condensation shell device 4 by tank body 3 and cools for the first time, and fast condensation shell device 4 is transported in roll-type tunnel furnace 6 to cool further calcium carbide by roller-way 5.Cooled calcium carbide transports by truck 10.
Whole calcium carbide sensible heat recovery system is arranged in calcium carbide production side, do not rely on come out of the stove track and cooling across.
The principle of work of this calcium carbide sensible heat recovery system is as follows: first, high-temperature liquid state calcium carbide injects by the plug for outlet 2 of furnace of calcium carbide 1 tank body 3 building resistance to material, high-temperature liquid state calcium carbide is injected fast condensation shell device 4 and carries out fast condensation shell by tank body 3 again, then, fast condensation shell device 4 is transported in roll-type tunnel furnace 6 by roller-way 5, recirculation blower 9 work carry out circulating air cooling thus calcium carbide cooled further, roller-way 5 by cooled sack for transporting calcium carbide to outside roll-type tunnel furnace 6, finally, calcium carbide is transported by truck 10.
Particularly, waste heat recovery apparatus comprises waste heat boiler 7 and drying kiln 8, and the high-temperature gas in early stage (more than 400 DEG C high temperature) in roll-type tunnel furnace 6 passes in waste heat boiler 7 and generates electricity, and in the later stage, cryogenic gas (400 DEG C to 150 DEG C) passes into drying kiln 8 drying.
Speed condensation shell device 4 comprises base and is positioned at the upper frame above this base, wherein, upper frame is formed with multiple groove for holding calcium carbide, the bottom of this groove is sealed by base, upper frame is provided with cooling water pipeline for holding water coolant and the cooling water inlet be communicated with this cooling water pipeline and cooling water outlet, base is provided with aqua storage tank for holding water coolant and the water inlet pipe be communicated with this aqua storage tank and rising pipe, cooling water pipeline is circular layout on the sidewall of upper frame, cooling water pipeline is provided with multiple, independent setting between multiple cooling water pipeline, each cooling water pipeline correspondence arranges a cooling water inlet and cooling water outlet.
Base and upper frame are for removably connecting, and arranging like this is conveniently take out cooled calcium carbide.Base and upper frame are sealed by gravity, during cooling, only with upper frame of slinging, take out the calcium carbide stayed on base.
Upper frame material is stainless steel, and the wall thickness of the inner side-wall of upper frame is 200 ~ 400mm, and the width of groove is 200 ~ 600mm.The quantity of groove is 4 ~ 16.Base material is stainless steel (can be also copper, to improve rate of cooling), and base is rectangular parallelepiped, and its length is 4.0 ~ 8.0m, and width is 2.0m ~ 4.0m, thickness 200 ~ 400mm.Water inlet pipe and rising pipe are provided with multiple, and base is homonymy water inlet, offside water exit mode, and upper frame is homonymy water inlet, homonymy water exit mode.
The calcium carbide sensible heat recovery system that the present embodiment proposes, by fast condensation shell device 4, calcium carbide is tentatively cooled, the high temperature calcium carbide of shelly of congealing into supports without the need to calcium carbide pot, under roller-way 5 conveying effect, calcium carbide is entered kiln and gas direct heat exchange by fast condensation shell device 4, high-temperature gas is directly sent into waste heat boiler 7 and is generated electricity, cryogenic gas send limestone kiln dry, and heat utilization efficiency is high.In addition, native system is arranged in calcium carbide production side, do not rely on come out of the stove track and air cooling across, overcome traditional process of cooling and need take a large amount of production plant area, delay the drawbacks such as rhythm of production.In addition, by rationally arranging the fast cooling water flow of condensation shell device 4 and the power of recirculation blower 9, can within a cycle of coming out of the stove the liquid calcium carbide of cooling down high-temperature, once invest for reducing, accelerate rhythm of production, the market competitiveness of improving product has very important meaning.
For the furnace of calcium carbide 1 calcium carbide workshop investment of actual 2 × 45MVA and production.Do not adopt calcium carbide sensible heat recovery system, need two to cool across, 96 calcium carbide pots and supporting carbide pushcarts, calcium carbide track and several pot for subsequent use and dolly, once make an investment in about 2,000 ten thousand.And after adopting calcium carbide sensible heat recovery system, utilizing the tank body 3 of building resistance to material by laying bricks or stones high-temperature liquid state calcium carbide to be injected fast condensation shell device 4, the calcium carbide solidifying crust is cooled further by roll-type tunnel furnace 6, reclaims heat and can reach more than 100kWh/t calcium carbide.
In sum, the inventive method is once invested reduction, improves working condition and improve the competitiveness of product in market to have very important meaning.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure transformation utilizing specification sheets of the present invention and accompanying drawing content to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a calcium carbide sensible heat recovery system, is characterized in that, comprises roller-way, fast condensation shell device, roll-type tunnel furnace and waste heat recovery apparatus, wherein,
Described fast condensation shell device is installed on roller-way, described fast condensation shell device is cooled by water coolant, described roll-type tunnel furnace is arranged on roller-way, recirculation blower is installed to carry out circulating air cooling to calcium carbide in described roll-type tunnel furnace, described waste heat recovery apparatus is connected to carry out waste heat recovery by pipeline with roll-type tunnel furnace, high-temperature liquid state calcium carbide injects described fast condensation shell device by tank body and cools for the first time, and fast condensation shell device is transported in roll-type tunnel furnace to cool further calcium carbide by described roller-way.
2. calcium carbide sensible heat recovery system as claimed in claim 1, it is characterized in that, described waste heat recovery apparatus comprises waste heat boiler and drying kiln, and the high-temperature gas in early stage in described roll-type tunnel furnace passes in described waste heat boiler and generates electricity, and in the later stage, cryogenic gas passes into drying kiln drying.
3. calcium carbide sensible heat recovery system as claimed in claim 1, it is characterized in that, described fast condensation shell device comprises base and is positioned at the upper frame above this base, wherein, described upper frame is formed with multiple groove for holding calcium carbide, the bottom of this groove is sealed by described base, described upper frame is provided with cooling water pipeline for holding water coolant and the cooling water inlet be communicated with this cooling water pipeline and cooling water outlet, described base is provided with aqua storage tank for holding water coolant and the water inlet pipe be communicated with this aqua storage tank and rising pipe, described cooling water pipeline is circular layout on the sidewall of described upper frame, described cooling water pipeline is provided with multiple, independent setting between multiple described cooling water pipeline, described in each, cooling water pipeline correspondence arranges a cooling water inlet and cooling water outlet.
4. calcium carbide sensible heat recovery system as claimed in claim 3, it is characterized in that, described base and upper frame are for removably connecting.
5. calcium carbide sensible heat recovery system as claimed in claim 3, it is characterized in that, described upper frame material is stainless steel, and the wall thickness of the inner side-wall of described upper frame is 200 ~ 400mm, and the width of described groove is 200 ~ 600mm.
6. calcium carbide sensible heat recovery system as claimed in claim 3, it is characterized in that, the quantity of described groove is 4 ~ 16.
7. calcium carbide sensible heat recovery system as claimed in claim 3, it is characterized in that, described base material is stainless steel, and described base is rectangular parallelepiped, and its length is 4.0 ~ 8.0m, and width is 2.0m ~ 4.0m, thickness 200 ~ 400mm.
8. as the calcium carbide sensible heat recovery system in claim 3 to 7 as described in any one, it is characterized in that, described water inlet pipe and rising pipe are provided with multiple, and described base is homonymy water inlet, offside water exit mode, and described upper frame is homonymy water inlet, homonymy water exit mode.
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| CN201510595654.8A CN105217632B (en) | 2015-09-16 | 2015-09-16 | Calcium carbide sensible heat recovery system |
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| CN201510595654.8A CN105217632B (en) | 2015-09-16 | 2015-09-16 | Calcium carbide sensible heat recovery system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858662A (en) * | 2016-06-22 | 2016-08-17 | 上海泰旭能源科技有限公司 | Calcium carbide sensible heat recovery device |
| CN110160349A (en) * | 2019-06-21 | 2019-08-23 | 沈林彬 | A kind of environment-protecting type exhaust air heat exchange comprehensive utilization raw material of wood-charcoal drying kiln |
| CN111895796A (en) * | 2020-07-06 | 2020-11-06 | 西安交通大学 | Power generation system and method using discharged calcium carbide as heat source |
| CN112539656A (en) * | 2020-12-01 | 2021-03-23 | 中船重工（上海）新能源有限公司 | Energy utilization method in calcium carbide production process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858662A (en) * | 2016-06-22 | 2016-08-17 | 上海泰旭能源科技有限公司 | Calcium carbide sensible heat recovery device |
| CN105858662B (en) * | 2016-06-22 | 2018-06-22 | 上海泰旭能源科技有限公司 | A kind of acetylene stones sensible heat retracting device |
| CN110160349A (en) * | 2019-06-21 | 2019-08-23 | 沈林彬 | A kind of environment-protecting type exhaust air heat exchange comprehensive utilization raw material of wood-charcoal drying kiln |
| CN111895796A (en) * | 2020-07-06 | 2020-11-06 | 西安交通大学 | Power generation system and method using discharged calcium carbide as heat source |
| CN112539656A (en) * | 2020-12-01 | 2021-03-23 | 中船重工（上海）新能源有限公司 | Energy utilization method in calcium carbide production process |
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