CN106010591A - High-temperature coke breeze organic heat carrier waste heat recycling system - Google Patents
High-temperature coke breeze organic heat carrier waste heat recycling system Download PDFInfo
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- CN106010591A CN106010591A CN201610497238.9A CN201610497238A CN106010591A CN 106010591 A CN106010591 A CN 106010591A CN 201610497238 A CN201610497238 A CN 201610497238A CN 106010591 A CN106010591 A CN 106010591A
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- heat exchanger
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a high-temperature coke breeze organic heat carrier waste heat recycling system which comprises a low-temperature storage tank, an oil pump, a heat exchanger, a swelling tank, a high-temperature storage tank, a water cooler, heat use equipment, valves and a control system, wherein the heat exchanger is of an upright structure in which at least three groups of snake-shaped heat exchange tubes are arranged; the heat exchange tubes are arranged in a staggered manner in the horizontal direction; high-temperature coke breeze outside the tubes exchanges heat with an organic heat carrier inside the tubes. Due to adoption of three-stage reverse heat exchange, the high-temperature coke breeze can be implemented to the maximum extent; due to adoption of the organic heat carrier as a heat exchange medium, the system can operate at anaerobic micro-positive pressure, the 280 DEG C high-parameter heat exchange medium heat supply equipment can be obtained, the process has simple process and high heat efficiency, coke can be quenched, and at the same time the waste heat can be effectively utilized.
Description
Technical field
The invention belongs to dry distillation of coal technical field, be specifically related to a kind of high temperature coke breeze organic heat carrier residual neat recovering system.
Background technology
Coal low temperature distillation is to use coal pyrolysis process technology, in the case of isolation air, coal is heated to 550 DEG C～600 DEG C, and removing affects the water of coal calorific value, oxygen and low heat value volatile matter material, makes coal exothermic component be enriched with, and forms solid semicoke.
The semicoke that retorting technique produces mainly has bulk and powder according to technique difference, for High temperature powder semi-coke, needs to carry out quenching cooling after gas retort produces.The energy consumption ratio that the sensible heat of high-temperature semi-coke accounts for whole retort process is higher.Therefore, reclaim the sensible heat of semicoke, can effectively reduce the energy consumption of dry distillation of coal process.
Current quenching technology has CDQ and wet quenching.CDQ technology is the sensible heat using noble gas to absorb semicoke, absorbs the noble gas of semicoke sensible heat as secondary energy sources, the repeatable utilization of noble gas after heat-shift in heat-exchange apparatus.Wet quenching technology is by water cooling direct to high-temperature coke.CDQ, compared with wet quenching, has recyclable semicoke sensible heat, improves semicoke quality and reduces the advantages such as environmental pollution.When current gas heat carrier Dry Quenching Technology processes powdered coke, gas-solid separating difficulty is relatively big, unsuitable for.
It is the new direction of coke breeze waste heat recovery by the heat-exchange system that high-temperature solid particle heat is directly reclaimed.Conventional heat transfer systems or the operation principle of waste heat boiler, be to use water or steam as heat transferring medium, it is thus achieved that high-temperature steam, and system structure is complicated, and working pressure of pipeline is relatively big, and device fabrication and working service are relatively costly.
Therefore, realize the recovery waste heat simultaneously of the cooling to high temperature coke breeze the most simple and effectively, be current those skilled in the art's problem demanding prompt solution.
Summary of the invention
It is an object of the invention to current dry quenching system cannot process the problems such as powder, a large amount of energy losses existed and system configuration complexity.
For this, the invention provides a kind of high temperature coke breeze organic heat carrier residual neat recovering system, including low-temperature storage tank, oil pump, heat exchanger, expansion tank, high temperature storage tank, water cooler, heating equipment, valve, switch board, described heat exchanger is vertical heat exchanger, heat exchanger top is provided with high temperature coke breeze import, bottom is provided with the outlet of low temperature coke breeze, described heat exchanger includes the heat exchanger tube that at least three groups set gradually from top to bottom, for organic heat carrier and be all bottom in and top out in described heat exchanger tube, it is equipped with expansion tank and oil pump on pipeline between the outlet of lower heat exchanger tube and upper heat exchanger tube import in neighbouring two groups of heat exchanger tubes；
The outlet line of described low-temperature storage tank is connected with the first oil pump, this first fuel pump outlet is divided into two-way, pipeline of leading up to communicates with low-temperature storage tank, the first valve, heater it is sequentially provided with on this pipeline, separately lead up to pipeline and the second valve communicates with the heat exchanger tube import of heat exchanger bottom, the heat exchanger tube outlet topmost of described heat exchanger is connected with the 3rd expansion tank by pipeline, and the 3rd expansion tank outlet connection has high temperature storage tank, described high temperature outlet and the 4th oil pump to connect；
Described 4th oil delivery side of pump is divided into two-way, pipeline of leading up to is back to low-temperature storage tank after entering heating equipment, wherein it is provided with the 3rd valve between the 4th oil pump and heating equipment, the 6th valve it is provided with between heating equipment and low-temperature storage tank, pipeline of separately leading up to connects water cooler, is provided with the 4th valve between described 4th oil pump and water cooler.
Nitrogen interface, relief valve, air bleeding valve, blowoff valve, Pressure gauge, thermometer, liquidometer, breather valve spark arrester it is provided with on described low-temperature storage tank, high temperature storage tank, each expansion tank.
Described Pressure gauge, thermometer, the upper output signal line of liquidometer are all connected with switch board, and described each operation of oil pump control line is all connected with switch board.
The outlet of described heating equipment and water cooler inlet communication, be provided with the 5th valve between the outlet of described heating equipment and water cooler.
Described organic heat carrier is conduction oil, and this conduction oil is synthesis type conduction oil or mineral type conduction oil.
Described heat exchanger is by supporting housing and heat exchanger tube forms, and described heat exchanger tube is snakelike light pipe, and described snakelike light pipe is horizontally disposed, is connected with supporting housing, and support housing housing is provided with temperature sensor and level sensor.
Described heater is electric heater or gas fuel formula heater.
Described each oil pump is double pump interlocking module group.
The invention has the beneficial effects as follows:
(1) present invention uses organic heat carrier that coke breeze carries out continuous several times quenching cooling, uses counter-current operation can obtain bigger heat transfer efficiency, shortens the quenching time, it is possible to effectively reduces the temperature of final outlet coke breeze.
(2) heat transferring medium passes through stepped heating, can obtain higher temperature, have purposes the most widely.
(3) making that the organic heat carrier of heat transferring medium is capable of circulation to be reused, effectively reduce the use cost of waste heat recovery process, whole quenching waste heat recovery process is in oxygen-free environment, and system pressure-fired is safe and reliable.
(4) snakelike light pipe in heat exchanger, dislocation layout can effective batch mixing, simple in construction, consumable accessory is changed convenient, treating capacity greatly, low cost.
(5) semicoke is through multistage cooling dry coke quenching, can be effectively improved the physical property of semicoke.
It is described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1, low-temperature storage tank；2, heater；3, the first oil pump；4, the first valve；5, the second valve；6, heat exchanger；7, one-level heat exchanger tube；8, the second oil pump；9, the first expansion tank；10, secondary heat exchange pipe；11, the 3rd oil pump；12, the second expansion tank；13, three grades of heat exchanger tubes；14, the 3rd expansion tank；15, high temperature storage tank；16, the 4th oil pump；17, the 3rd valve；18, the 4th valve；19, heating equipment；20, the 5th valve；21, the 6th valve；22, water cooler；23, switch board.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of high temperature coke breeze organic heat carrier residual neat recovering system, including low-temperature storage tank 1, oil pump, heat exchanger 6, expansion tank, high temperature storage tank 15, water cooler 22, heating equipment 19, valve, switch board 23, described heat exchanger 6 is vertical heat exchanger 6, heat exchanger 6 top is provided with high temperature coke breeze import, bottom is provided with the outlet of low temperature coke breeze, described heat exchanger 6 includes the heat exchanger tube that at least three groups set gradually from top to bottom, for organic heat carrier and be all bottom in and top out in described heat exchanger tube, it is equipped with expansion tank and oil pump on pipeline between the outlet of lower heat exchanger tube and upper heat exchanger tube import in neighbouring two groups of heat exchanger tubes；
The outlet line of described low-temperature storage tank 1 is connected with the first oil pump 3, the outlet of this first oil pump 3 is divided into two-way, pipeline of leading up to communicates with low-temperature storage tank 1, the first valve 4, heater 2 it is sequentially provided with on this pipeline, separately lead up to pipeline and the second valve 5 communicates with the heat exchanger tube import of heat exchanger 6 bottom, the heat exchanger tube outlet topmost of described heat exchanger 6 is connected with the 3rd expansion tank 14 by pipeline, 3rd expansion tank 14 exports connection has high temperature storage tank 15, the outlet of described high temperature storage tank 15 to connect with the 4th oil pump 16；
The outlet of described 4th oil pump 16 is divided into two-way, pipeline of leading up to is back to low-temperature storage tank 1 after entering heating equipment 19, wherein it is provided with the 3rd valve 17 between the 4th oil pump 16 and heating equipment 19, the 6th valve 21 it is provided with between heating equipment 19 and low-temperature storage tank 1, pipeline of separately leading up to connects water cooler 22, is provided with the 4th valve 18 between described 4th oil pump 16 and water cooler 22.
Low-temperature storage tank 1 is used for storing organic heat carrier (conduction oil), before system works, conduction oil is filled in low-temperature storage tank 1, open the first valve 4, close the second valve 5, start the first oil pump 3 and heater 2, heat up according to conduction oil heating curve, moisture in removing conduction oil and hydrocarbon, the conduction oil after boiling oil is stored in low-temperature storage tank 1.Wherein, heater 2 is electric heater or gas fuel formula heater.
Heat exchanger 6 starts to feed first 15 minutes, close the first valve 4, open the second valve 5, open the oil pump on pipeline between the outlet of lower heat exchanger tube and the upper heat exchanger tube import in the first oil pump 3 and neighbouring two groups of heat exchanger tubes successively, conduction oil is passed through the heat exchanger tube of bottom through the first oil pump 3 supercharging, after high temperature coke breeze starts charging, the conduction oil heat exchange laggard expansion tank of intensification in the heat exchanger tube of bottom, the conduction oil being stored in this expansion tank enters heat exchanger tube above after oil pump supercharging, enter expansion tank after heating up with high temperature coke breeze heat exchange and store, the like, after high temperature coke breeze and conduction oil heat exchange, conduction oil enters high temperature storage tank 15 after entering the 3rd expansion tank 14, store stand-by；High temperature coke breeze becomes after low temperature coke breeze by heat exchanger 6 bottom discharge.
In treating high temperature storage tank 15, conduction oil stores to a certain amount of, starts the 4th oil pump 16, opens the 3rd valve the 17, the 4th valve 18, closes the 6th valve 21, and system is heating equipment 19 heat supply, and the cold oil after heat exchange is back to low-temperature storage tank 1, completes waste heat recovery circulation.Wherein, water cooler 22 is opened depending on the temperature drop situation that heating equipment 19 is fuel-displaced.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of high temperature coke breeze organic heat carrier residual neat recovering system, described low-temperature storage tank 1, high temperature storage tank 15, each expansion tank are provided with nitrogen interface, relief valve, air bleeding valve, blowoff valve, Pressure gauge, thermometer, liquidometer, breather valve spark arrester.
As it is shown in figure 1, the upper output signal line of described Pressure gauge, thermometer, liquidometer is all connected with switch board 23, described each operation of oil pump control line is all connected with switch board 23.Oil pump output flow is adjusted by switch board 23 according to expansion tank liquid level and 6 each sections of temperature signals of heat exchanger, to keep the process stabilizing of whole residual neat recovering system.Realize automatization, reduce the amount of labour.
Heating equipment 19 outlet and water cooler 22 inlet communication, described heating equipment 19 exports and is provided with the 5th valve 20 between water cooler 22.When organic carrier through with heating equipment 19 heat exchange after temperature higher than 70 DEG C time, open the 5th valve 20, open water cooler 22 and conduction oil is lowered the temperature.
In the present embodiment, heat exchanger 6 is made up of support housing and heat exchanger tube, and described heat exchanger tube is snakelike light pipe, and described snakelike light pipe is horizontally disposed, is connected with supporting housing, supports and is provided with temperature sensor and level sensor on housing.As it is shown in figure 1, heat exchanger tube is three groups, heat exchanger 6 starts to feed first 15 minutes, close the first valve 4, open the second valve 5, open first oil pump the 3, second oil pump the 8, the 3rd oil pump 11 successively, conduction oil is passed through one-level heat exchanger tube 7 through the first oil pump 3 supercharging, is warming up to 140 DEG C and enters the first expansion tank 9；The deep fat being stored in the first expansion tank 9 enters secondary heat exchange pipe 10 after the second oil pump 8 supercharging, is warming up to 210 DEG C and enters the second expansion tank 12；The deep fat being stored in the second expansion tank 12 enters three grades of heat exchanger tubes 13 after the 3rd oil pump 11 supercharging, is warming up to 280 DEG C and enters the 3rd expansion tank 14；Deep fat in 3rd expansion tank 14 is back to high temperature storage tank 15, stores stand-by.
Each oil pump is double pump interlocking module group.Interlocking be an oil pump in case of a fault, another can start voluntarily to.It is prior art, can realize interlocking by PLC, it is also possible to realize hardware interlock with switch, relay etc..
In sum, compared with prior art, (1) uses organic heat carrier that coke breeze carries out continuous several times quenching cooling to the present invention, uses counter-current operation can obtain bigger heat transfer efficiency, shortens the quenching time, it is possible to effectively reduces the temperature of final outlet coke breeze.
(2) heat transferring medium passes through stepped heating, can obtain higher temperature, have purposes the most widely.
(3) making that the organic heat carrier of heat transferring medium is capable of circulation to be reused, effectively reduce the use cost of waste heat recovery process, whole quenching waste heat recovery process is in oxygen-free environment, and system pressure-fired is safe and reliable.
(4) snakelike light pipe in heat exchanger 6, dislocation layout can effective batch mixing, simple in construction, consumable accessory is changed convenient, treating capacity greatly, low cost.
(5) semicoke is through multistage cooling dry coke quenching, can be effectively improved the physical property of semicoke.
In the present embodiment, the switch board 23 control to each parts and the regulation to oil pump output flow belong to prior art, and in embodiment, the parts of in detail narration and structure belong to the well-known components of the industry and common structure or conventional means, describe the most one by one.
Exemplified as above is only the illustration to the present invention, is not intended that the restriction to protection scope of the present invention, within the every and same or analogous design of the present invention belongs to protection scope of the present invention.
Claims (8)
1. a high temperature coke breeze organic heat carrier residual neat recovering system, it is characterized in that: include low-temperature storage tank (1), oil pump, heat exchanger (6), expansion tank, high temperature storage tank (15), water cooler (22), heating equipment (19), valve, switch board (23), described heat exchanger (6) is vertical heat exchanger (6), heat exchanger (6) top is provided with high temperature coke breeze import, bottom is provided with the outlet of low temperature coke breeze, described heat exchanger (6) includes the heat exchanger tube that at least three groups set gradually from top to bottom, for organic heat carrier and be all bottom in and top out in described heat exchanger tube, it is equipped with expansion tank and oil pump on pipeline between the outlet of lower heat exchanger tube and upper heat exchanger tube import in neighbouring two groups of heat exchanger tubes；
The outlet line of described low-temperature storage tank (1) is connected with the first oil pump (3), the outlet of this first oil pump (3) is divided into two-way, pipeline of leading up to communicates with low-temperature storage tank (1), the first valve (4) it is sequentially provided with on this pipeline, heater (2), separately lead up to pipeline and the second valve (5) communicates with the heat exchanger tube import of heat exchanger (6) bottom, the outlet of described heat exchanger (6) heat exchanger tube topmost is connected with the 3rd expansion tank (14) by pipeline, 3rd expansion tank (14) outlet connection has high temperature storage tank (15), the outlet of described high temperature storage tank (15) connects with the 4th oil pump (16)；
The outlet of described 4th oil pump (16) is divided into two-way, pipeline of leading up to is back to low-temperature storage tank (1) after entering heating equipment (19), wherein it is provided with the 3rd valve (17) between the 4th oil pump (16) and heating equipment (19), the 6th valve (21) it is provided with between heating equipment (19) and low-temperature storage tank (1), pipeline of separately leading up to connects water cooler (22), is provided with the 4th valve (18) between described 4th oil pump (16) and water cooler (22).
A kind of high temperature coke breeze organic heat carrier residual neat recovering system the most according to claim 1, it is characterised in that: it is provided with nitrogen interface, relief valve, air bleeding valve, blowoff valve, Pressure gauge, thermometer, liquidometer, breather valve spark arrester on described low-temperature storage tank (1), high temperature storage tank (15), each expansion tank.
A kind of high temperature coke breeze organic heat carrier residual neat recovering system the most according to claim 2, it is characterized in that: described Pressure gauge, thermometer, the upper output signal line of liquidometer are all connected with switch board (23), and described each operation of oil pump control line is all connected with switch board (23).
A kind of high temperature coke breeze organic heat carrier residual neat recovering system the most according to claim 1, it is characterized in that: described heating equipment (19) outlet and water cooler (22) inlet communication, between described heating equipment (19) outlet and water cooler (22), be provided with the 5th valve (20).
A kind of high temperature coke breeze organic heat carrier residual neat recovering system the most according to claim 1, it is characterised in that: described organic heat carrier is conduction oil, and this conduction oil is synthesis type conduction oil or mineral type conduction oil.
6. according to a kind of high temperature coke breeze organic heat carrier residual neat recovering system described in any one of claim 1-5, it is characterized in that: described heat exchanger (6) is made up of support housing and heat exchanger tube, described heat exchanger tube is snakelike light pipe, described snakelike light pipe is horizontally disposed, it is connected with supporting housing, supports and be provided with temperature sensor and level sensor on housing.
7. according to a kind of high temperature coke breeze organic heat carrier residual neat recovering system described in any one of claim 1-5, it is characterised in that: described heater (2) is electric heater or gas fuel formula heater.
8. according to a kind of high temperature coke breeze organic heat carrier residual neat recovering system described in any one of claim 1-5, it is characterised in that: described each oil pump is double pump interlocking module group.
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| CN201610497238.9A CN106010591A (en) | 2016-06-30 | 2016-06-30 | High-temperature coke breeze organic heat carrier waste heat recycling system |
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| CN201610497238.9A CN106010591A (en) | 2016-06-30 | 2016-06-30 | High-temperature coke breeze organic heat carrier waste heat recycling system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189889A (en) * | 2017-07-10 | 2017-09-22 | 贵州南风日化有限公司 | A kind of washing powder spray drying tower tail gas waste heat recovery use apparatus |
| CN107794062A (en) * | 2016-11-04 | 2018-03-13 | 榆林学院 | A kind of kestner long-tube evaporator for reclaiming semi-coke quenching waste heat |
| CN107937183A (en) * | 2017-07-10 | 2018-04-20 | 贵州南风日化有限公司 | A kind of washing powder spray drying tower waste heat from tail gas recoverying and utilizing method and device |
| CN108998054A (en) * | 2018-08-01 | 2018-12-14 | 青岛京润石化设计研究院有限公司 | A kind of fluidized bed coal coke powder cooling means |
| CN110307148A (en) * | 2019-06-27 | 2019-10-08 | 唐钢美锦（唐山）煤化工有限公司 | A kind of coking desulfurization systems pumps cooling water emergency treatment device and technique |
| CN110904344A (en) * | 2019-12-27 | 2020-03-24 | 山西宝盛远华新材料股份有限公司 | Magnesium phase change heat recovery device for Pidgeon magnesium smelting and use method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794062A (en) * | 2016-11-04 | 2018-03-13 | 榆林学院 | A kind of kestner long-tube evaporator for reclaiming semi-coke quenching waste heat |
| CN107189889A (en) * | 2017-07-10 | 2017-09-22 | 贵州南风日化有限公司 | A kind of washing powder spray drying tower tail gas waste heat recovery use apparatus |
| CN107937183A (en) * | 2017-07-10 | 2018-04-20 | 贵州南风日化有限公司 | A kind of washing powder spray drying tower waste heat from tail gas recoverying and utilizing method and device |
| CN107937183B (en) * | 2017-07-10 | 2020-04-28 | 贵州南风日化有限公司 | Washing powder spray drying tower tail gas waste heat recycling method and device |
| CN108998054A (en) * | 2018-08-01 | 2018-12-14 | 青岛京润石化设计研究院有限公司 | A kind of fluidized bed coal coke powder cooling means |
| CN110307148A (en) * | 2019-06-27 | 2019-10-08 | 唐钢美锦（唐山）煤化工有限公司 | A kind of coking desulfurization systems pumps cooling water emergency treatment device and technique |
| CN110904344A (en) * | 2019-12-27 | 2020-03-24 | 山西宝盛远华新材料股份有限公司 | Magnesium phase change heat recovery device for Pidgeon magnesium smelting and use method thereof |
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Application publication date: 20161012 |