CN109135769A - Raw coke oven gas waste-heat recovery device and method - Google Patents
Raw coke oven gas waste-heat recovery device and method Download PDFInfo
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- CN109135769A CN109135769A CN201811059050.1A CN201811059050A CN109135769A CN 109135769 A CN109135769 A CN 109135769A CN 201811059050 A CN201811059050 A CN 201811059050A CN 109135769 A CN109135769 A CN 109135769A
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- coke oven
- raw coke
- helix tube
- oven gas
- heat recovery
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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
- C10B27/00—Arrangements for withdrawal of the distillation gases
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The present invention provides a raw coke oven gas waste-heat recovery device and methods, it is related to heat recovery technology field, raw coke oven gas waste-heat recovery device provided by the invention includes helix tube and the extension that connect with helix tube, helix tube has air inlet, extension has the gas outlet for gas in helix tube to be discharged, and air inlet and gas outlet are in the same end of helix tube.Raw coke oven gas waste-heat recovery device provided by the invention is easy to use, can fully absorb the heat of raw coke oven gas, and the heat extra to raw coke oven gas is recycled.
Description
Technical field
The present invention relates to heat recovery technology fields, more particularly, to a kind of raw coke oven gas waste-heat recovery device and method.
Background technique
Coking industry is that energy conversion and consumption rich and influential family disappear during coking coal is completely cut off air destructive distillation coke
A large amount of blast furnace gas or coke-stove gas are consumed, while also generating a large amount of heat.Its heat generated is mainly made of four parts:
1. the red coke released from carbonization chamber, sensible heat account for about 37% or so of entire heat.2. being generated in isolation air retort process
High temperature raw coke oven gas, for temperature between 650-850 DEG C, the sensible heat of institute's band accounts for about the 30%-36% of entire heat；3. coke oven cigarette
Road gas, for temperature between 175-230 DEG C, sensible heat accounts for about 16-20%.4. coking furnace shaft radiates, this partial heat accounts for about
9%-11%.
Heat is recycled and is generated electricity by using dry coke quenching process system by burnt sensible heat red at present, obtains red burnt sensible heat
Preferable recycling.Flue gases of cock oven part also has Some Enterprises by coal conditioning technique, using flue gas sensible heat to coking coal
Moisture is adjusted, to achieve the purpose that reach energy-saving while recycling flue gas sensible heat.Furnace body radiator portion also has
Enterprise reinforces furnace insulation, reduces the heat dissipation of furnace body by using the research and development and investment of refractory material.And it is aobvious in high temperature raw coke oven gas
Hot part mostly uses greatly spray high pressure aqua ammonia to carry out cooling processing to raw coke oven gas, to make the temperature of raw coke oven gas from 650-850 DEG C
It drops between 80-85 DEG C.This partial heat is not able to effectively recycle and utilize.
Therefore, how the raw coke oven gas waste-heat recovery device and method that the heat of a kind of pair of raw coke oven gas is effectively recycled are provided
It is one of those skilled in the art's technical problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of raw coke oven gas waste-heat recovery devices and method can fully absorb raw coke oven gas
Heat, the heat extra to raw coke oven gas are recycled.
To achieve the above object, the present invention the following technical schemes are provided:
In a first aspect, the present invention provides a kind of raw coke oven gas waste-heat recovery device, including helix tube and connect with the helix tube
The extension connect, the helix tube have air inlet, and the extension has to be gone out for what gas in the helix tube was discharged
Port, the air inlet and the gas outlet are in the same end of the helix tube.
Further, the helix tube is arranged around the extension.
Further, the internal diameter of the helix tube and the extension is 10mm-15mm.
Further, the wall thickness of the helix tube and the extension is 1mm-2mm.
Further, the spiral number of turns of the helix tube are 120-180 circle.
Further, the extension is straight pipeline.
Further, the helix tube and the extension are for transporting nitrogen.
It further, further include being set to the helix tube or the temperature sensor outside the extension, the temperature
Degree sensor is used to detect the temperature of raw coke oven gas.
Further, the air inlet of the helix tube is equipped with controller and the valve for controlling gas flow, the control
Device processed is connect with the valve and the temperature sensor respectively, and the controller according to the temperature sensor for detecting
Temperature information control the open and-shut mode of the valve.
Second aspect, the present invention also provides a kind of raw coke oven gas exhaust heat recovering methods, including in first aspect it is any described
Raw coke oven gas waste-heat recovery device include:
The raw coke oven gas waste-heat recovery device is installed into coke oven coke oven uprising tube；
The gas outlet of the extension is connected to one end of utilidor；
The other end of the utilidor is connected to waste heat boiler；
Be passed through gas to the air inlet of the helix tube so that gas absorb raw coke oven gas heat to the water in boiler into
Row heating generates steam.
Raw coke oven gas waste-heat recovery device provided by the invention and method can generate it is following the utility model has the advantages that
When stating raw coke oven gas waste-heat recovery device in use, the gas in helix tube and extension can occur with raw coke oven gas
Heat exchange, to absorb the heat of raw coke oven gas, the gas after heat absorption can be discharged from the gas outlet of extension, provide for subsequent processing
Heat.
For compared with the existing technology, in the raw coke oven gas waste-heat recovery device that first aspect present invention provides, helix tube tool
There is helical structure, effectively increases the heat extraction path of gas, the gas in helix tube can fully absorb the heat of raw coke oven gas,
It is discharged again by the gas outlet of extension.Since air inlet and gas outlet are in the same end of helix tube, gas is further extended
The heat extraction path of body, and gas can be returned from the position of air inlet, so that above-mentioned raw coke oven gas waste-heat recovery device is using more
It is convenient.
For compared with the existing technology, the raw coke oven gas exhaust heat recovering method that second aspect of the present invention provides can be to raw coke oven gas
Heat absorbed, and for heating to the water in boiler, generations vapor is urban heat supplying, remaining heat recovery efficiency
Height, recovery method is simple, and operation is easy.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of three dimensional structure diagram of raw coke oven gas waste-heat recovery device provided by the invention；
Fig. 2 is a kind of working principle block diagram of raw coke oven gas waste-heat recovery device provided by the invention；
Fig. 3 is a kind of flow diagram of raw coke oven gas exhaust heat recovering method provided by the invention.
Icon: 1- helix tube；11- air inlet；2- extension；The gas outlet 21-；3- temperature sensor；4- control
Device；5- valve.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 is a kind of three dimensional structure diagram of raw coke oven gas waste-heat recovery device provided by the invention；Fig. 2 mentions for the present invention
A kind of working principle block diagram of the raw coke oven gas waste-heat recovery device supplied；Fig. 3 is a kind of raw coke oven gas waste heat recycling provided by the invention
The flow diagram of method.
The purpose of the present embodiment is that a kind of raw coke oven gas waste-heat recovery device is provided, as shown in Figure 1, including 1 He of helix tube
The extension 2 connecting with helix tube 1, helix tube 1 have air inlet 11, and extension 2 has for gas in helix tube 1 to be discharged
Gas outlet 21, air inlet 11 and gas outlet 21 are in the same end of helix tube 1.
When stating raw coke oven gas waste-heat recovery device in use, the gas in helix tube and extension can occur with raw coke oven gas
Heat exchange, to absorb the heat of raw coke oven gas, the gas after heat absorption can be discharged from the gas outlet of extension, provide for subsequent processing
Heat.
For compared with the existing technology, in the raw coke oven gas waste-heat recovery device that the embodiment of first aspect present invention provides,
Helix tube has helical structure, effectively increases the heat extraction path of gas, the gas in helix tube can fully absorb waste coal
The heat of gas, then be discharged by the gas outlet of extension.Since air inlet and gas outlet are in the same end of helix tube, further
The heat extraction path of gas is extended, and gas can be returned from the position of air inlet, so that above-mentioned raw coke oven gas waste-heat recovery device makes
Use enhanced convenience.
In some embodiments, as shown in Figure 1, in order to enable above-mentioned raw coke oven gas waste-heat recovery device more saves sky
Between, helix tube 1 is arranged around extension 2.
In further embodiments, extension 2 can also be set to the outside in the space that helix tube 1 is surrounded.
In some embodiments, in order to enable can be passed through enough gas in helix tube 1, the internal diameter of helix tube 1 is
10mm-15mm.
Specifically, the internal diameter of helix tube 1 can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm.
In at least one embodiment, the internal diameter of helix tube 1 is 12mm.
On the basis of the above embodiments, in order to enable enough gas can be passed through in extension 2, extension 2 it is interior
Diameter is 10mm-15mm.
Specifically, the internal diameter of extension 2 can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm.
In at least one embodiment, the internal diameter of extension 2 is 12mm.
In order to enable the structure of helix tube 1 is more secured, the wall thickness of helix tube 1 is 1mm-2mm.
Specifically, the wall thickness of helix tube 1 can be 1mm, 1.5mm, 2mm.
In at least one embodiment, the wall thickness of helix tube 1 is 1.5mm.
In some embodiments, the vertical range of the middle line that helix tube 1 is surrounded to outer diameter of steel pipes is 270mm-290mm,
The radius of cylindrical structure that i.e. 1 outer diameter of helix tube is constituted is 270mm-290mm.
Specifically, the middle line that helix tube 1 is surrounded to outer diameter of steel pipes vertical range can for 270mm, 280mm,
290mm。
In at least one embodiment, the vertical range of the middle line that helix tube 1 is surrounded to outer diameter of steel pipes can be
280mm。
In some embodiments, in order to enable helix tube 1 can adequately absorb the heat of raw coke oven gas, helix tube
1 spiral number of turns are 120-180 circle.
Specifically, the spiral number of turns of helix tube 1 can be 120 circles, 140 circles, 160 circles or 180 circles.
In at least one embodiment, the spiral number of turns of helix tube 1 are 140 circles.
On the basis of the above embodiments, the perimeter of each circle of helix tube 1 can be 1600mm-1800mm.
Specifically, the perimeter of each circle of helix tube 1 can be 1600mm, 1650mm, 1700mm, 1750mm, 1800mm.
In at least one embodiment, the Zhou Changwei 1700mm of each circle of helix tube 1.
In some embodiments, as shown in Figure 1, extension 2 is straight pipeline.
In further embodiments, extension 2 or helical pipe similar with helix tube 1.
In some other embodiments, extension 2 or snake pipe.
In at least one embodiment, in order to enable above-mentioned raw coke oven gas waste-heat recovery device is more secured, 1 He of helix tube
The material of extension 2 can be steel pipe.
In at least one embodiment, in order to avoid to obtain temperature lower and tie on helix tube 1 and extension 2 for raw coke oven gas
Coke, above-mentioned raw coke oven gas waste-heat recovery device further include the temperature sensor 3 outside helix tube 1, and temperature sensor 3 is for examining
The temperature or helix tube 1 of surveying raw coke oven gas can also be set to the outside of extension 2.
On the basis of the above embodiments, the air inlet 11 of helix tube 1 is equipped with controller 4 and for controlling gas flow
Valve 5, controller 4 are connect with valve 5 and temperature sensor 3 respectively, what controller 4 was used to be detected according to temperature sensor 3
The open and-shut mode of temperature information control valve 5.
As shown in Fig. 2, temperature sensor 3 detects the temperature real-time perfoming of raw coke oven gas, and temperature signal is sent to control
Device 4 processed, controller 4 receive temperature signal, and according to the temperature signal come the open and-shut mode of control valve 5.When the temperature of raw coke oven gas
When spending lower, 4 control valve 5 of controller reduces the flow of gas；When the temperature of raw coke oven gas is higher, 4 control valve 5 of controller
Increase the flow of gas.The setting of temperature sensor 3 and controller 4 can control the stream of gas according to the temperature of raw coke oven gas
Amount, avoids the temperature of raw coke oven gas too low and the coking on helix tube 1 and extension 2.
Wherein, controller 4 can be single-chip microcontroller.
Specifically, controller 4 is preset with first threshold, and when the temperature of raw coke oven gas is lower than first threshold, controller 4 is controlled
Valve 5 reduces the flow of gas, and the gas in helix tube 1 and extension 2 is avoided to absorb the excessive heat of raw coke oven gas；When waste coal
When the temperature of gas is higher than first threshold, 4 control valve 5 of controller increases the flow of gas, so that gas is sufficiently to raw coke oven gas
Heat is absorbed.
Wherein, the numerical value of first threshold can be 500 degree of -550 degree.
Specifically, the numerical value of first threshold can be 500 degree, 510 degree, 520 degree, 530 degree, 540 degree, 550 degree.
In at least one embodiment, the numerical value of first threshold can be 520 degree.
It should be noted that the gas into helix tube 1 can be nitrogen.The chemical property torpescence of nitrogen, Neng Goubao
It demonstrate,proves more stable when above-mentioned raw coke oven gas waste-heat recovery device uses.
The embodiment of second aspect of the present invention provides a kind of raw coke oven gas exhaust heat recovering method, as shown in figure 3, the present invention second
The raw coke oven gas exhaust heat recovering method that the embodiment of aspect provides uses above-mentioned raw coke oven gas waste-heat recovery device
Step S101 installs raw coke oven gas waste-heat recovery device into coke oven coke oven uprising tube；
The gas outlet 21 of extension 2 is connected to by step S102 with one end of utilidor；
The other end of utilidor is connected to by step S103 with waste heat boiler；
Step S104, to the air inlet 11 of helix tube 1 at be passed through gas so that gas absorb raw coke oven gas heat to boiler
Interior water carries out heating and generates steam.
For compared with the existing technology, the raw coke oven gas exhaust heat recovering method that the embodiment of second aspect of the present invention provides can
The heat of raw coke oven gas is absorbed, and for being heated to the water in boiler, generation vapor is urban heat supplying, waste heat
Recovery efficiency is high, and recovery method is simple, and operation is easy.
Wherein, utilidor can keep the temperature gas, and gas heat in transmission process is avoided largely to be lost, so that
Above-mentioned raw coke oven gas exhaust heat recovering method is to the more efficient of raw coke oven gas heat recovery.
Specifically, utilidor includes tube body and insulating layer, and insulating layer is directly coated on the outside of tube body, intracorporal to pipe
Gas is kept the temperature.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of raw coke oven gas waste-heat recovery device, which is characterized in that connect including helix tube (1) and with the helix tube (1)
Extension (2), the helix tube (1) have air inlet (11), and the extension (2) has for will be in the helix tube (1)
The gas outlet (21) of gas discharge, the air inlet (11) are in the same end of the helix tube (1) with the gas outlet (21).
2. raw coke oven gas waste-heat recovery device according to claim 1, which is characterized in that the helix tube (1) is around described
Extension (2) setting.
3. raw coke oven gas waste-heat recovery device according to claim 1, which is characterized in that the helix tube (1) and described prolong
The internal diameter for stretching pipe (2) is 10mm-15mm.
4. raw coke oven gas waste-heat recovery device according to claim 3, which is characterized in that the helix tube (1) and described prolong
The wall thickness for stretching pipe (2) is 1mm-2mm.
5. raw coke oven gas waste-heat recovery device according to claim 1, which is characterized in that the spiral coil of the helix tube (1)
Number is that 120-180 is enclosed.
6. raw coke oven gas waste-heat recovery device according to claim 1, which is characterized in that the extension (2) is straight pipeline.
7. raw coke oven gas waste-heat recovery device according to claim 1, which is characterized in that the helix tube (1) and described prolong
Pipe (2) are stretched for transporting nitrogen.
8. raw coke oven gas waste-heat recovery device according to claim 1, which is characterized in that further include being set to the helix tube
(1) or it is set to the extension (2) external temperature sensor (3), the temperature sensor (3) is used to detect the temperature of raw coke oven gas
Degree.
9. raw coke oven gas waste-heat recovery device according to claim 8, which is characterized in that the air inlet of the helix tube (1)
(11) be equipped with controller (4) and the valve (5) for controlling gas flow, the controller (4) respectively with the valve (5) and
Temperature sensor (3) connection, the controller (4) are used for the temperature information detected according to the temperature sensor (3)
Control the open and-shut mode of the valve (5).
10. a kind of raw coke oven gas exhaust heat recovering method, which is characterized in that use such as the described in any item waste coals of claim 1-9
Gas waste-heat recovery device, comprising:
The raw coke oven gas waste-heat recovery device is installed into coke oven coke oven uprising tube；
The gas outlet (21) of the extension (2) is connected to one end of utilidor；
The other end of the utilidor is connected to waste heat boiler；
It is passed through gas to the air inlet (11) of the helix tube (1), so that gas absorbs the heat of raw coke oven gas in boiler
Water carries out heating and generates steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059050.1A CN109135769A (en) | 2018-09-11 | 2018-09-11 | Raw coke oven gas waste-heat recovery device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059050.1A CN109135769A (en) | 2018-09-11 | 2018-09-11 | Raw coke oven gas waste-heat recovery device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109135769A true CN109135769A (en) | 2019-01-04 |
Family
ID=64824696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811059050.1A Pending CN109135769A (en) | 2018-09-11 | 2018-09-11 | Raw coke oven gas waste-heat recovery device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322086A (en) * | 2021-06-29 | 2021-08-31 | 攀钢集团西昌钢钒有限公司 | Time delay method for controlling quality of externally supplied steam of dry quenching in sections |
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| JPH08134456A (en) * | 1994-11-07 | 1996-05-28 | Nkk Corp | Method for recovering sensible heat from crude coke oven gas |
| CN102109287A (en) * | 2011-01-21 | 2011-06-29 | 马敏 | Heat exchange tube and cooling device thereof |
| CN205156373U (en) * | 2015-11-16 | 2016-04-13 | 嘉兴恒日太阳能科技有限公司 | Heat -accumulating type solar water heater without water tank |
| CN206345820U (en) * | 2016-12-19 | 2017-07-21 | 鞍钢股份有限公司 | A kind of waste-heat recovery device of coal oven dithio-gas |
| CN108467737A (en) * | 2018-05-23 | 2018-08-31 | 樊晓光 | A kind of spiral coil conduction-type raw coke oven gas waste heat recovery apparatus |
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2018
- 2018-09-11 CN CN201811059050.1A patent/CN109135769A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134456A (en) * | 1994-11-07 | 1996-05-28 | Nkk Corp | Method for recovering sensible heat from crude coke oven gas |
| CN102109287A (en) * | 2011-01-21 | 2011-06-29 | 马敏 | Heat exchange tube and cooling device thereof |
| CN205156373U (en) * | 2015-11-16 | 2016-04-13 | 嘉兴恒日太阳能科技有限公司 | Heat -accumulating type solar water heater without water tank |
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| CN108467737A (en) * | 2018-05-23 | 2018-08-31 | 樊晓光 | A kind of spiral coil conduction-type raw coke oven gas waste heat recovery apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322086A (en) * | 2021-06-29 | 2021-08-31 | 攀钢集团西昌钢钒有限公司 | Time delay method for controlling quality of externally supplied steam of dry quenching in sections |
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