CN104673333B - Quenching and the method and apparatus recovered energy - Google Patents
Quenching and the method and apparatus recovered energy Download PDFInfo
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- CN104673333B CN104673333B CN201510055867.1A CN201510055867A CN104673333B CN 104673333 B CN104673333 B CN 104673333B CN 201510055867 A CN201510055867 A CN 201510055867A CN 104673333 B CN104673333 B CN 104673333B
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Classifications
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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
- C10B39/04—Wet quenching
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
Abstract
The present invention relates to a kind of quenching and the method and apparatus recovered energy；At least include：(1) water gas reaction temperature-fall period：The red coke released from coke oven occurs chemical reaction with vapor and produces water-gas, produces the water gas reaction heat absorption of water-gas and coke is cooled；(2) pressurize water vapor temperature-fall period：Coke after cooling through water gas reaction directly contacts the vaporization for occurring water in closed container with water, coke is produced the vapor that can be used as gaseous heat source while cooling；The water vapor temperature-fall period is at least made up of water spray vaporescence, water vapor cooling tank pressure leak process and the coke discharge process under the conditions of coke feed process, the closed process of water vapor cooling tank, water rate control.The present invention, which has, can reclaim heat, the characteristics of not producing pollution；With small investment, operating cost is low, the characteristics of quenching time is short.The present invention provides the quenching of high efficiency, low cost for the quenching of coking industry and reclaims the method and apparatus of the energy.
Description
Technical field
The present invention relates to a kind of cooling of red coke in coking industry and the method and apparatus of energy regenerating, in particular with
With red coke water gas reaction cooling occurs for vapor, and water produces the steaming that can be used as thermal source with coke direct Contact Evaporating
Vapour and the method and apparatus recycled, belong to the energy and energy recovery is utilized and field of Environment Protection.
Background technology
Coke is the important source material of steel and iron industry, and the high-temperature coke (red coke) released from coke oven needs to drop in a short time
Temperature, i.e. quenching.Contain substantial amounts of heat energy in red coke, if it is possible to which recycling can then accomplish energy-saving and emission-reduction simultaneously.So far
Based on the wet quenching that the main watering with open system cools, though the method equipment is simple, quenching speed is fast, have lost red
The substantial amounts of heat energy of coke institute band, can also cause environmental pollution.In addition, cooling down the dry coke quenching skill that red coke is generated electricity with nitrogen
Art has also been applied in industrial practice more, and positive work has been played in terms of reclaiming the energy and reducing pollutant emission
With.But the equipment investment of nitrogen cooling dry coke quenching method and operating cost are higher, and the operation to enterprise brings heavier
Cost burden, governs the widely available of Dry Quenching Technology.Therefore, exploring one kind quickly can make high-temperature coke cool, the energy
Utilization can also be recycled, while equipment investment is again than relatively low, especially the low coke quenching method of operating cost and device be just very
It is necessary.There is provided the method and dress that a kind of low cost reclaims heat energy by setting about from the method for changing high-temperature coke cooling by the present invention
Put, the Technological Economy problem for solution this area provides technological means.
The content of the invention
It is an object of the invention to provide a kind of coke quenching method of high efficiency, low cost and equipment, pass through the high temperature section in coke
The temperature of high-temperature coke is reduced using the water-gas chemical reaction heat absorption of vapor and coke powder or red coke and reclaims flammable gas
Body, further by the vaporization absorbing and cooling temperature of water in confined conditions and produces Low pressure steam and reclaims profit in the middle-temperature section of coke
With to reach cooling coke and reclaim the purpose of heat energy.Compared with traditional wet quenching method, this method, which has, to be reclaimed
Heat, the characteristics of not producing pollution；Compared with traditional CDQ method, with small investment, operating cost is low, the quenching time
Short the characteristics of.
The present invention adopts the following technical scheme that realization：
Coke quenching method in the coking industry of the present invention, is at least made up of following process：
(1) water gas reaction temperature-fall period：The red coke released from coke oven occurs chemical reaction with vapor and produces water coal
Gas, producing the water gas reaction heat absorption of water-gas makes coke cool；
(2) pressurize water vapor temperature-fall period：Coke after cooling through water gas reaction is direct with water in closed container
The vaporization of water occurs for contact, coke is produced the vapor that can be used as gaseous heat source while cooling；The water vapor
Temperature-fall period at least by the water spray vaporescence under the conditions of coke feed process, the closed process of water vapor cooling tank, water rate control,
Water vapor cooling tank pressure leak process and coke discharge process composition.
Watering vaporization is set to steam cooling between the water gas reaction temperature-fall period and pressurization water vapor temperature-fall period
Process, the process is that the coke watering after cooling to water gas reaction makes coke further cool, produced vapor conduct
The reactants water steam of the water gas reaction temperature-fall period is used, and the coke that watering is vaporized after cooling of steaming enters pressurization steam
Change temperature-fall period.
After the carbonaceous additive that the mixture of coke powder or anthracite or both is used as water gas reaction is mixed with red coke
Into water gas reaction process, occurring water gas reaction with vapor makes coke cool.
The quenching of the present invention and the device recovered energy, the water gas reaction cooling tank at least including water gas reaction, and
The cooling of water spray vaporization in confined conditions and the pressurization water vapor cooling tank for producing compressed steam；Water gas reaction cooling tank
Coke export is connected with pressurization water vapor cooling tank coke inlet.
It is at least anti-including water-gas for adding the device that watering vaporizes the quenching for the temperature-fall period that steams and recovered energy
The water gas reaction cooling tank answered, and watering vaporization produce vapor and vaporize cooling of steaming for the watering that water gas reaction is used
Groove, and the cooling of water spray vaporization in confined conditions and the pressurization water vapor drop for producing the vapor that can be used as gaseous heat source
Warm tank；The coke inlet that the coke export of water gas reaction cooling tank vaporizes the cooling groove that steams with watering is connected, watering vaporization
The cooling groove coke export that steams is connected with pressurization water vapor cooling tank coke inlet.
The pressurization water vapor cooling tank at least reaches closed between water vapor cooling tank body, top cover, top cover and tank body
The water inlet composition set on steam outlet, tank body or the top cover that closure mechanism, tank body top or top cover top are set, steam
Change sets coke opening to be used as coke inlet and outlet at the top of cooling tank body, and the tank body can be realized topples over up and down, coke
Load coke under opening upwards state, coke is discharged under coke Open Side Down state；Or pressurization water vapor cooling tank is at least by water
The water inlet that vaporization cooling tank body, the vapor export mouth of tank body top setting, tank body top are set, the bottom of tank is provided with Jiao
Charcoal outlet, coke export are provided with the top of coke valve and bottom vapor stop valve derived from control coke, tank and are provided with Jiao
Charcoal entrance, coke inlet are provided with coke inlet control valve and top vapor stop valve.
Closure mechanism between the water vapor cooling tank body and top cover, is described water vapor cooling tank body and top cover
Between closure mechanism there is following structure：The coke inlet of tank body and the bottom of top cover are respectively provided with outwardly edge, when
When top cover is contacted with tank body, the cocked bead of the rwo is embedded into the upper groove constituted below of sealing outer toroid；The sealing
Outer toroid is made up of two parts, it is necessary to which two parts sealing outer toroid is closed up, it is necessary to release close in opposite directions from both sides during closed tank body
Two parts sealing outer toroid is removed to both sides respectively during envelope.
The water gas reaction temperature-fall period of the red coke and water gas reaction and the coke after cooling to water gas reaction
The watering vaporization temperature-fall period that steams is that series connection is carried out continuously, and watering vaporization steams the coke after cooling respectively alternately in parallel many
Individual pressurization water vapor cooling tank imports coke, and alternating water delivery carries out pressure (hydraulic) water in the pressurization water vapor cooling tank in parallel respectively
Vaporize temperature-fall period；Or water gas reaction temperature-fall period is carried out continuously obtained coke respectively alternately to multiple pressure (hydraulic) waters in parallel
Vaporize cooling tank to import, alternating water delivery progress pressurization water vapor cooled in the pressurization water vapor cooling tank in parallel respectively
Journey.
It is to the recovery method that water produced steam is carried out：The vapor that the water vapor temperature-fall period that pressurizes is produced imports water and steamed
After gas storage tank, the import and export of the vapor storage tank are closed, the vapor in the storage tank heated using external heat source；Or
Only heated to importing the vapor in vapor storage tank；Or sprayed water during heating also into the vapor storage tank,
Adjust the pressure of vapor in tank, temperature and the degree of superheat；The external heat source is heated to be the generation of water gas reaction temperature-fall period
Combustion gas is by heat exchanger heat exchange, or the heat produced with the fuel gas buring or other thermals source heat exchange indirectly heat, or utilizes
Other high temperature and high pressure steams are imported to be directly heated in the vapor storage tank, or this several method combination；The vapor storage
Tank is set up in parallel to be multiple, alternately imports vapor, heating, the process for discharging vapor.
Following coke quenching method can be used for the factory that thermal source is had more than needed, i.e., red coke is passing through water gas reaction process and spilt
Water vapor, which is steamed, enters open water spray quenching process after temperature-fall period, and the process is steamed temperature-fall period to through vaporization of sprinkling water
Coke water spray after cooling, coke, which directly contacts the vaporization for occurring water with water, makes coke cool to the temperature required by quenching, produces
Raw vapor is directly diffused to be diffused in air in after air or condensed recovery heat.
It is described as follows：
Thus, carbon and vapor generation water-gas chemical reaction (C+H are passed through in the high temperature section of coke2O (g)=CO+H2) big
Amount heat absorption, allows red coke to be reduced to 700-750 DEG C from 1000 DEG C, the water-gas of generation can be used for coke oven or other needs
The process of thermal source is used as thermal source.When coke temperature is reduced to below 700 DEG C, then it is in contact with vapor also and seldom occurs
Chemical reaction, is that the utilization of the produced vapor of follow-up water vapor cooling is laid a good foundation.Meanwhile, coke temperature is reduced to
After less than 700 DEG C, alleviate significantly to the requirement in terms of follow-up equipment material and intensity so that the skill such as follow-up steam utilization
The implementation of art is provided convenience condition.
The water vapor temperature-fall period of coke after water gas reaction cooling is carried out in closed container, in closed container
Water spray vaporization, not only can quickly make coke cool to 200 DEG C or so, can also produce the vapor with certain pressure intensity, energy
Enough vapor thermals source used as recovery of chemical products and other processes are used.The pressure of water produced steam can be according to coke-oven plant
Reality gas is it needs to be determined that the water vapour pressure numerical value of control, general control is advisable in 0.05-1.0MPa.
By cooling to 700 DEG C or so of coke watering vaporization to water gas reaction, can not only it make coke further fast
Prompt drop temperature, can also produce vapor and import foregoing water gas reaction process and used as the vapor of reactant.In addition,
Cooled by this watering and clearly separated water gas reaction process and the temperature range of pressurization water vapor temperature-fall period, ensured
Water-gas is not produced in pressurization water vapor temperature-fall period.The speed and water of the watering are to carry out under controlled conditions, control
System is according to the steam vapour amount produced by being watering vaporization 1.1-1.5 times of steam vapour amount needed for water gas reaction.Control water
The appropriate superfluous amount of reactant in water gas reaction can be then ensured, and the vapor ratio in water-gas can be controlled, with profit
In follow-up utilization.Watering amount can be controlled according to the requirement of reaction speed and technological design.
The mixture of coke powder or anthracite or both is participated in after being mixed as the carbonaceous additive of water gas reaction with red coke
Water gas reaction, it is possible to reduce the reaction loss of coke.The powder specific-surface area detection of particularly coke powder and anthracite etc. is big, is more easy to fast
Speed reaction, so, it is more beneficial for reducing the water-gas chemical reaction loss of coke.Generally, the adding proportion of carbonaceous additive is red
The 1%-10% of weight of coke is advisable.In the case where adding carbonaceous additive, carbonaceous additive also can all participate in all red coke
Chemical reaction and temperature-fall period, so, it is simple and direct to describe in the present invention, just only referred to red coke or coke, and actual mistake
The participation of carbonaceous additive is also included in journey.
Above-mentioned coke quenching method is realized by following main device：At least by red coke or coke powder or anthracite or these mixing
The water gas reaction cooling tank of water gas reaction occurs for carbide and vapor, and the coke watering after cooling to water gas reaction
Vaporization produces vapor and vaporizes the cooling groove that steams, and the cooling of water spray vaporization in confined conditions for the watering that water gas reaction is used
And produce the pressurization water vapor cooling tank composition of compressed steam；The coke export of water gas reaction cooling tank and watering vaporization production
Vapour cooling groove coke inlet be connected, watering vaporization steam cooling groove coke export with pressurization water vapor cooling tank coke inlet
It is connected.The series connection of steam cooling groove and the water vapor cooling tank that pressurizes is vaporized by the water gas reaction cooling tank, watering to be made
With, can smoothly realize water gas reaction, produce vapor for water gas reaction using and coke is further cooled, and produce
Life can make the vapor of thermal source and make coke fast cooling, finally coke temperature is reduced to below the numerical value no longer burnt, reach
To the purpose of quenching.The cooling and descending process for usually making red coke are smoothed out, preferably in water gas reaction cooling tank
Top is provided with space higher than water-gas exit site and prestored section as red coke, such as Fig. 1 water gas reaction cooling tank 3
Shown in 3a.Also watering vaporization can be saved to steam cooling groove, and it is direct by water gas reaction cooling tank and the water vapor cooling tank that pressurizes
It is connected and is used in series, needs specially to import the vapor used for water gas reaction in this case, and in this case enter
The coke temperature of pressurization water vapor cooling tank can be higher.
The pressurization water vapor cooling tank at least reaches closed between water vapor cooling tank body, top cover, top cover and tank body
The water inlet composition set on steam outlet, tank body or the top cover that closure mechanism, tank body top or top cover top are set, steam
Change sets coke opening to be used as coke inlet and outlet at the top of cooling tank body, and the tank body can be realized topples over up and down, coke
Load coke under opening upwards state, coke is discharged under coke Open Side Down state；Or pressurization water vapor cooling tank is at least by water
The water inlet that vaporization cooling tank body, the vapor export mouth of tank body top setting, tank body top are set, the bottom of tank is provided with Jiao
Charcoal outlet, coke export are provided with the top of coke valve and bottom vapor stop valve derived from control coke, tank and are provided with Jiao
Charcoal entrance, coke inlet are provided with coke inlet control valve and top vapor stop valve.The pressurization water vapor of both types
Topple over type cooling tank up and down in cooling tank, in actual applications, the need for toppling over due to tank body with top cover movement, load coke
When need coke import chute, and the chute must be it is transportable, i.e., loading coke when, be moved to cooling tank coke and enter
Mouthful, the process of loading coke is removed again after finishing, it is therefore desirable to which type cooling tank top is toppled over above and below sets moveable
Coke imports chute.Because red coke is after water gas reaction cools, thermal source can be used as by being produced into water vapor cooling tank
The vapor utilized must just have certain pressure, so, required heat source water is kept in tank body in coke temperature-fall period
The pressure of steam, therefore, the purpose for holding pressure, after the completion of temperature-fall period, pressure release is can reach by above-mentioned charging and closed process
After can smoothly discharge of the coke, toppling over up and down for tank body can be realized and quickly discharged of the coke.In two kinds of pressurization water vapor cooling tank
Tank body fixed cooling tank the importing and discharge of coke are realized by pipeline valve, eliminate the tipping mechanism of tank body, but right
The requirement of coke valve and vapor stop valve can be higher.Tank body topples over mode can be according to the burnt rule of production with tank body fixed form
Mould size and coke quality are specifically chosen.
Closure mechanism between the water vapor cooling tank body and top cover of the tank body Dumpage type water vapor cooling tank is tank body
Coke inlet and the bottom of top cover be respectively provided with outwardly edge, when top cover is contacted with tank body, the protrusion side of the rwo
Edge is embedded into the upper groove constituted below of sealing outer toroid；The sealing outer toroid is made up of two parts, it is necessary to closed tank body
When the two parts sealing outer toroid close up in opposite directions from both sides, during depressurization the two parts sealing outer toroid removed respectively to both sides
(as shown in Figure 5).Seal outer toroid and tank body and the embedded structure of cap edge so that under internal pressure effect, tank body outer rim
Lower end edge with sealing outer toroid, top cover outer rim and end edge in sealing outer toroid are all the more close, realize from pressure seal, and pressure
Power is bigger, and effect is stronger.Sealing outer toroid is divided into two parts, can realize simple and quick folding, not only simplify structure but also accomplished
Quick acting.Sealing outer toroid and the contact portion material of the chimeric of tank body and cap edge need to select to have and elastic can become
The soft material of shape, while can also use the contact structures of biting connecions, reaches better seal effect.
The water gas reaction temperature-fall period of red coke and water gas reaction and the coke after cooling to water gas reaction are sprinkled water
The temperature-fall period that steams is that series connection is carried out continuously, and watering steams the coke after cooling respectively alternately to multiple pressurization water vapors in parallel
Cooling tank imports coke, respectively the alternately spray cooling process in the pressurization water vapor cooling tank in parallel.Pass through pressurization
The parallel connection of water vapor cooling tank is used alternatingly, reach water gas reaction temperature-fall period and watering temperature-fall period be carried out continuously with after
The intermittently operated of continuous pressurization water vapor temperature-fall period can be connected well, efficiently successfully carry out.For being not provided with watering
Steam temperature-fall period quenching can be water gas reaction temperature-fall period be carried out continuously obtained coke respectively alternately to parallel connection
Multiple pressurization water vapor cooling tanks are imported, and alternating water delivery carries out pressurization steam in the pressurization water vapor cooling tank in parallel respectively
Change temperature-fall period.
The vapor that the water vapor temperature-fall period that pressurizes is produced is imported the turnover of the vapor storage tank after vapor storage tank
Mouth is closed, and the vapor in the storage tank is heated using external heat source, and the vapor storage tank is set up in parallel to be multiple, is handed over
For the process for carrying out importing vapor, heating, discharge vapor.Because in pressurization water vapor temperature-fall period, pressurization water vapor is dropped
The sealing difficulty of warm tank is larger, and requirement of the vapor to equipment for producing High Voltage is too high, and poorly sealed leakage problem can shadow
Ring stable operation.So, vapor storage tank is imported after the vapor that pressurization water vapor temperature-fall period is produced compared with low pressure, by it
Import and export and close, implement heat temperature raising boosting and be easy for much, pressure and temperature needed for other workshops can not only be produced
Vapor, can also be greatly reduced the sealing difficulty of the pressurized gasification cooling tank of quenching process.The setting of multiple vapor storage tanks is handed over
It can realize that pressurization water vapor cooling and steam heating heat up the matched wells of the two processes, reach stable operation for use
Purpose.The external heat source is heated to be the combustion gas of water gas reaction temperature-fall period generation by heat exchanger heat exchange, or uses
Heat or other thermals source heat exchange indirectly heat that the fuel gas buring is produced, or import the water steaming using other high temperature and high pressure steams
Directly heated in gas storage tank, or this several method combination.The external heat source of heating can be in practical application specific feelings
Condition is selected.
The vapor storage tank is by storage tank tank body, vapor import, steam outlet, vapor imported valve, vapor
Outlet valve and heater composition, tank water steam-gas inlet are connected with the steam outlet for the water vapor cooling tank that pressurizes, storage tank
Steam outlet is connected with vapor user's pipeline, and heater heat source side is connected with heat source pipeline, heater heat supply
Side is in contact with the vapor in vapor storage tank.By the vapor tank water steam-gas inlet valve and steam outlet valve set
The opening and closing of door is just easy to carry out control and realization that each in storage tank is operated.Can be with to the vapor imported in vapor storage tank
Only heated, can also be sprayed water during heating also into the vapor storage tank, the pressure of vapor, temperature in regulation tank
And the degree of superheat.Because the requirement as the vapor of thermal source according to different purposes to its pressure, temperature and the degree of superheat is not yet
Together, it is therefore desirable to for the different characteristics for requiring to adjust thermal source.The cold of saturated vapor is needed in the indirectly heat that such as cokingization is produced
Solidifying flash heat transfer, and have certain degree of superheat more preferable to prevent condensation from producing condensed water in course of conveying.
Following coke quenching method can be used for the factory that thermal source is had more than needed, i.e., red coke is passing through water gas reaction process and spilt
Water vapor, which is steamed, enters open water spray quenching process after temperature-fall period, and the process is steamed temperature-fall period to through vaporization of sprinkling water
Coke water spray after cooling, coke, which directly contacts the vaporization for occurring water with water, makes coke cool to the temperature required by quenching, produces
Raw vapor is directly diffused to be diffused in air in after air or condensed recovery heat.Thereby, it is possible in high temperature section recycle-water
Coal gas can for coke oven or other need the process of thermal source to be used as thermal source；In (750-600 DEG C) watering vaporization production of middle-temperature section
Vapor is produced while vapour cools to use for water gas reaction, also coke is further cooled；Middle low-temperature zone (650 DEG C with
Under) directly sprayed water to coke, coke, which directly contacts the vaporization for occurring water with water, makes coke cool to the temperature required by quenching, reaches
To the purpose of quenching, the vapor of generation is diffused to be diffused in air in after air or condensed recovery heat.Work as coke temperature
When dropping to less than 700 DEG C, then it is in contact and also seldom chemically reacts with vapor, diffuses also few pollutions in air
Thing is discharged.Compared with conventional wet quenching, the discharge of pollutant is greatly reduced.
In Practical Project, due to dust can be carried during the generation of water-gas and water vapour, later use is influenceed.Institute
So that dedusting should be set on the water-gas outlet of water gas reaction cooling tank and the steam outlet pipeline of pressurization water vapor cooling tank
Device, the problems such as thus eliminating the blocking that later use process is likely to occur.
In practical engineering application, each process can produce some waste gas, can be sent to waste gas by dedicated pipeline suction
Discharged after processing system processing.
The beneficial effects of the invention are as follows occur water gas reaction, simple and quick drop in high temperature section with red coke using vapor
Low coke temperature simultaneously produces thermal source combustion property, vaporizes further fast cooling using watering in middle-temperature section and provides water gas reaction
The vapor needed, produces available thermal source steaming while the water spray of middle low-temperature zone under confined conditions vaporizes fast cooling
Vapour；Coke breeze or anthracitic addition reduce the consumption of coke；Water gas reaction tank, watering cooling groove and pressurization water vapor cooling
The devices such as tank provide the guarantee of device and system for the realization of the coke quenching method of the red coke；By pressurizeing, water vapor cools
The parallel connection of tank is used alternatingly, and reaches that water gas reaction temperature-fall period and watering temperature-fall period are carried out continuously and follow-up pressure (hydraulic) water
The intermittently operated of vaporization temperature-fall period can be connected well, efficiently successfully carry out.By being produced to pressurization water vapor cooling
Reheating of the vapor in vapor storage tank under air-tight state reach the same of reduction pressurization water vapor cooling tank sealing difficulty
The purpose of generation elevated pressures vapor required by Shi Shixian.Compared with conventional wet coke quenching method, this method has can
Reclaim heat, the characteristics of not producing pollution；Compared with traditional CDQ method, with small investment, operating cost is low, quenching
The characteristics of time is short.The present invention provides the quenching of high efficiency, low cost for the quenching of coking industry and reclaims the method and dress of the energy
Put.
Brief description of the drawings
Fig. 1：Type pressurization water vapor cooling coke quenching device figure is toppled over above and below water gas reaction cooling；
Fig. 2：The fixed pressurization water vapor cooling coke quenching device figure of water gas reaction cooling；
Fig. 3：Type pressurization water vapor cooling quenching operating process schematic diagram is toppled over above and below water gas reaction cooling；
Fig. 4：The fixed pressurization water vapor cooling quenching operating process schematic diagram of water gas reaction cooling；
Fig. 5：Type pressurization water vapor cooling tank sealed structural representation is toppled over up and down；
Fig. 6：Vapor storage tank schematic diagram.
Wherein：The red coke of 1-, 2- coke powders, 3- water gas reaction cooling tanks, the red coke of 3a- prestores section, the discharge of 4- water-gas
Mouthful, 5- watering vaporizations are steamed cooling groove, and 6- water vapors are steamed cooling water inlet, and the water that 6a- is used for the reactant of water gas reaction steams
Gas, 7- movable type coke chutes, above and below 8- topples over type pressurization water vapor cooling tank, and what 8A- was arranged in parallel topples over type pressurization up and down
Water vapor cooling tank A series, what 8B- was arranged in parallel topples over type pressurization water vapor cooling tank B series up and down, and above and below 9- topples over type and added
Water vapor cooling top ends of cans is pressed, above and below 10- topples over type pressurization water vapor cooling tank sealing outer toroid, 11- pressurization water vapor coolings
Tank is intake, 12- compressed steam delivery lines, and above and below 13- topples over type pressurization water vapor cooling tank pivot point, 14- coke powders or Jiao
Powder and anthracitic mixture, the fixed pressurization water vapor cooling tank entrance coke valve of 15- tank bodies, 15A- tank bodies are fixed to be added
Press water vapor cooling tank A entrance coke valves, the fixed pressurization water vapor cooling tank B entrance coke valves of 15B- tank bodies, 16- tanks
The fixed pressurization water vapor cooling tank entrance vapor stop valve of body, the fixed pressurization water vapor cooling tank A entrances of 16A- tank bodies
Vapor stop valve, the fixed pressurization water vapor cooling tank B entrance vapor stop valves of 16B- tank bodies, 17- tank bodies are fixed to be added
Press water vapor cooling tank coke outlet, the fixed pressurization water vapor cooling tank of 18- tank bodies, the fixed pressurization steam of 18A- tank bodies
Change cooling tank A series, the fixed pressurization water vapor cooling tank B series of 18B- tank bodies, the fixed pressurization water vapor cooling of 19- tank bodies
Tank coke outlet coke valve, the fixed pressurization water vapor cooling tank coke outlet vapor stop valve of 20- tank bodies, 21-
Vapor storage tank, the vapor import of 22- vapor storage tanks, the steam outlet of 23- vapor storage tanks, 24- vapor imports
Valve, 25- steam outlet valves, 26- vapor tank heaters.
Embodiment
Embodiment 1：
The present embodiment is the pressurization water vapor cooling tank with type discharging of turning upside down after red coke cools through water gas reaction
The quenching of combination, system is as shown in Figure 1.950-1050 DEG C of red coke 1 and coke powder 2 (by 1% addition of red weight of coke) from
Top section 3a while the red coke added in water gas reaction cooling tank 3 prestores, is moved from the top down in the tank, and is steamed with water
Gas 6a occurs to discharge from water-gas outlet 4 after water gas reaction generation water-gas is sent to coke oven combustion as combustion gas.Through water coal
Solid/liquid/gas reactions, which cool to 700 DEG C or so of coke and enter watering vaporization, to steam the cooling glide downwards of groove 5, and the water vapor with penetrating steams
Cooling water inlet 6 is conducted heat, and water vapor produces vapor 6a and is moved upwardly into water gas reaction cooling tank, is sent out with red coke and coke powder
Raw water gas reaction.Coke is through water vapor absorbing and cooling temperature to 600 DEG C or so and by toppling over above and below the portable feeding of coke chute 7
Type pressurization water vapor cooling tank 8.Coke chute 7, mobile pressurization water vapor cooling tank top cover 9 and cooling are removed after coke is filled
After tank 8 is closed, mobile sealing outer toroid 12 is by cooling tank 8 and the seal groove of the outer rim embedding sealing outer toroid of top cover 9, to drop
Warm tank 8 is carried out closed (as shown in Figure 5).Pressurization water vapor cooling tank water inlet 11 is opened after cooling tank is closed, is sprayed water into tank, water
The vapor that vaporization produces 1.0MPa exports being sent to after removing dust device (not shown) by compressed steam delivery line 12
Production workshop is used.Cooling tank 8 is dropped to pressure inside the tank after normal pressure by pressure relief opening (not shown) after the completion of quenching, by tank
Top cover 9 remove, by cooling tank 8 with pivot point 13 be fulcrum turn upside down make the coke for cooling to less than 200 DEG C discharge.It is red
The cooling of coke generates water-gas and used as combustion gas, also creates the vapor that can be used as thermal source, also makes red Jiao
Charcoal reached the purpose of quenching in 30 minutes.
Embodiment 2：
What the present embodiment was combined after cooling for red coke through water gas reaction with the fixed pressurization water vapor cooling tank of tank body
Quenching scheme, system is as shown in Figure 2.The mixture 14 of 950-1050 DEG C of red coke 1 and anthracite and coke powder (presses red coke weight
10% addition of amount, wherein coke powder respectively accounts for half with anthracite) prestoring in water gas reaction cooling tank 3 is added simultaneously from top
Section 3a, is moved from the top down in the tank, and is occurred with vapor 6a after water gas reaction generation water-gas from water-gas discharge
The discharge of mouth 4 is sent to boiler combustion as combustion gas.The coke for cooling to 720 DEG C or so through water gas reaction enters watering vaporization and steamed
Cooling groove 5 move down, the water vapor with penetrating steam cooling water inlet 6 conduct heat, water vapor produce vapor 6a move up into
Enter water gas reaction cooling tank 3, occur water gas reaction with red coke and anthracite char powder mixture.Coke absorbs heat through water vapor
Cool to 630 DEG C or so the rear fixed pressurization water vapor cooling tank 18 of feeding tank body (fixed pressurization water vapor cooling tank coke
Coke valve 19 is exported, the fixed pressurization water vapor cooling tank coke export vapor stop valve 20 of tank body is turned off).Work as coke
Fill and pressurization water vapor cooling tank coke inlet coke valve 15 is sequentially switched off after cooling tank 18 and water vapor cooling tank coke enters
Saliva steam stop valve 16.Open pressurization water vapor cooling tank water inlet 11 after cooling tank is closed to spray water into tank, water vapor is produced
0.3MPa vapor exports being sent to production workshop after removing dust device (not shown) by compressed steam delivery line 12 to be made
With.Pressure inside the tank is dropped to after normal pressure by cooling tank 18 by pressure relief opening (not shown) after the completion of quenching, bottom is opened burnt
Charcoal valve 19 and bottom vapor stop valve 20, the coke for cooling to less than 200 DEG C is arranged from pressurization water vapor cooling tank coke
Discharge outlet 17.
Embodiment 3：
The present embodiment is substantially the same manner as Example 1, except that pressurization water vapor temperature-fall period is in parallel upper by two
The reverse mould that has a down dip pressurization water vapor cooling tank is alternately accomplished, and system is as shown in Figure 3.Red coke (presses the 6% of red weight of coke with coke powder
Addition) import water gas reaction cooling tank in cool, then through sprinkle water vaporization steam cooling after by portable coke chute import
Pressurize water vapor cooling tank 8A, reach after focused charcoal quantity by portable coke chute switch to pressurization water vapor cooling tank 8B
Import coke；The pressurization water vapor cooling tank 8A for filling coke carries out the vaporization cooling of closed (process such as embodiment 1) water spray, works as drop
Warm tank 8B fills coke, and cooling tank 8A coke temperature-fall period finish after, the coke in cooling tank 8A is discharged, to cooling tank
8B water sprays carry out pressurization water vapor temperature-fall period, and the vapor for producing 0.5MPa is used for changing production workshop.Above-mentioned follow is repeated with this
Ring.Thus, water gas reaction temperature-fall period and watering steam temperature-fall period be carried out continuously and follow-up pressurization water vapor cools
The intermittently operated of process can be connected well, efficiently successfully carry out.
Embodiment 4：
The present embodiment is substantially the same manner as Example 2, except that water vapor temperature-fall period is consolidated by two tank bodies in parallel
Fixed pattern pressurization water vapor cooling tank is alternately accomplished, and system is as shown in Figure 4.Red coke (presses red coke weight with coke powder and anchracite duff
8% addition of amount, coke powder：Anthracite=1：2) import in water gas reaction cooling tank and cool, then steamed cooling through vaporization of sprinkling water
Afterwards through the coke valve 15A for the pressurization water vapor cooling tank A coke inlets opened, water vapor cooling tank A coke inlets of pressurizeing
(now, pressurize vapor stop valve 16A water vapor cooling tank B coke inlet coke valve 15B, and pressurization water vapor cooling tank B is burnt
Charcoal entrance vapor stop valve 16B is closed), the fixed pressurization water vapor cooling tank 18A of tank body is imported, reaches and determines
After coke quantity, coke valve 15B and vapor stop valve 16B is opened, coke valve 15A and vapor stop valve 16A is closed,
Coke is imported to the fixed pressurization water vapor cooling tank 18B of tank body.The pressurization water vapor cooling tank 18A progress for filling coke is closed
The vaporization cooling of (process such as embodiment 2) water spray, when cooling tank 18B fills coke, and cooling tank 18A coke temperature-fall period is finished
Afterwards, the coke in cooling tank 18A is discharged, carries out pressurization water vapor temperature-fall period to cooling tank 18B water sprays, produce 0.8MPa's
Vapor is used for changing production workshop.Above-mentioned circulation is repeated with this.Thus, water gas reaction temperature-fall period steams with watering and cooled
Being carried out continuously for journey can be connected well with the intermittently operated of follow-up pressurization water vapor temperature-fall period, efficiently successfully enter
OK.
Embodiment 5：
The present embodiment is the example that the vapor that STRENGTH ON COKE is produced in pressurization water vapor temperature-fall period implements heating, this reality
Applying scheme can implement to embodiment 1-4.After cooling that red coke cools through water gas reaction, vaporization of sprinkling water is steamed, in pressure (hydraulic) water
Water as shown in Figure 6 is imported after the 0.05-0.2MPa produced through water vapor of spraying water in vaporization cooling tank vapor removing dust to steam
Gas storage tank 21.Vapor, which is full of after the storage tank, closes vapor imported valve 24 (outlet valve 25 is turned off), steams water
Gas storage tank is in air-tight state.(500-700 DEG C) importing vapor storage tank of the water-gas that water gas reaction temperature-fall period is produced
Heater 26, heat exchange type indirectly heat is carried out with the vapor in storage tank, raises its temperature.It is heated to make vapor heating 5
Sprayed water in DEG C backward vapor storage tank, regulation water-jet velocity and injection flow rate reach the pressure of vapor in regulation tank, temperature and
The degree of superheat, the vapor of the pressure and temperature required for obtaining, such as 0.8-1.0MPa saturated steam, or such as 170 DEG C of mistake
Hot steam.Thus, the 0.05-0.2MPa produced in the water vapor cooling tank that pressurizes Low pressure steam is boosted into 0.8-
1.0MPa, as can satisfaction produce workshop and other use vapor user requirement, be sent to the steam used as thermal source
Pipe network.Vapor storage tank is 3 and is set up in parallel, alternately the air inlet of raw material vapor, heating, boosting heat up after vapor
Operation of supplying gas (opening steam outlet valve 25).
Embodiment 6：
The present embodiment is substantially the same manner as Example 5, except that the vapor for the 0.05-0.2MPa that quenching process is produced
Vapor storage tank 21 (4 compositions arranged side by side) as shown in Figure 6 is imported after removing dust.The water that water gas reaction temperature-fall period is produced
The heater 26 that (500-700 DEG C) of coal gas is imported in vapor storage tank, heat exchange type indirectly heat is carried out with the vapor in storage tank,
Raise its temperature.Meanwhile, the heat produced that burnt using coke-stove gas is heated to the vapor in storage tank, and (heater is not
Represent, set according to industrially conventional heater).It is appropriate while heating to be sprayed water into the vapor storage tank, adjust
Water-jet velocity and injection flow rate are saved, the pressure of vapor in regulation tank, temperature and the degree of superheat is reached, pressure and temperature required for obtaining
The saturation or overheated steam of the vapor of degree, such as 1.0-1.2MPa.Thus, it will pressurize and produce in water vapor cooling tank
0.05-0.2MPa Low pressure steam boosts to 1.0-1.2MPa, can satisfaction production workshop and other vapor user will
Ask, be sent to the steam pipe system used as thermal source.
Embodiment 7：
The present embodiment is substantially the same manner as Example 5, except that the vapor for the 0.1MPa that quenching process is produced is through removing
Imported after dirt after vapor storage tank 21 (2 compositions arranged side by side) as shown in Figure 6, the steam of 1.0MPa heat distribution pipe network is passed through into storage
The thermal source steam entry (not shown) set on tank 21 is directly added into closed vapor storage tank, makes the water in storage tank
Steam boosts to 0.4MPa, and being sent to production workshop is used.The water-gas (500-700 DEG C) that water gas reaction temperature-fall period is produced
Steamed with water vapor and be sent to coke oven after cooling water inlet or the water inlet of pressurization water vapor cooling tank or both water inlet heat exchange and use, temperature
60-80 DEG C of water is raised to steam cooling water inlet as water vapor, and pressurization water vapor cooling tank water inlet STRENGTH ON COKE carries out water vapor
Cooling.Water meeting rapid vaporization after heating, accelerates the cooling velocity of coke.
Embodiment 8：
What the present embodiment was combined after cooling for red coke through water gas reaction with the fixed pressurization water vapor cooling tank of tank body
Quenching scheme.Substantially the same manner as Example 2, the mixture 14 of different red coke 1 and anthracite and coke powder is anti-in water-gas
The vapor in cooling tank 3 with specially sending into is answered to make after occurring water gas reaction generation water-gas from the discharge of water-gas outlet 4
Boiler combustion is sent to for combustion gas.The coke for cooling to 720 DEG C or so through water gas reaction is directly entered the fixed pressure (hydraulic) water of tank body
Vaporize cooling tank and carry out pressurization water vapor temperature-fall period.Obtained 0.3MPa vapor is used for changing production workshop ammonia still process process.
Embodiment 9：
The present embodiment is that the vaporization that cools and sprinkle water through water gas reaction of red coke is steamed after cooling, into open water spray
The quenching example of quenching process.The mixture 14 of 950-1050 DEG C of red coke 1 and anthracite and coke powder (presses red weight of coke
10% addition, wherein coke powder respectively account for half with anthracite) from top while adding the section that prestores in water gas reaction cooling tank 3
3a, is moved from the top down in the tank, and is occurred with vapor 6a after water gas reaction generation water-gas from water-gas outlet 4
Discharge is sent to boiler combustion as combustion gas.The coke for cooling to 720 DEG C or so through water gas reaction enters watering vaporization and steamed drop
Warm groove 5 is moved down, the water vapor with penetrating steam cooling water inlet 6 conduct heat, water vapor produce vapor 6a be moved upwardly into
Water gas reaction cooling tank 3, occurs water gas reaction with red coke and anthracite char powder mixture.Coke absorbs heat through water vapor and dropped
The coke quenching cart that temperature is used to 630 DEG C or so the rear traditional coke wet quenchings of importing.Coke is set to cool to 200 DEG C to the coke quenching cart directly water spray
Hereinafter, quenching is completed.The vapor that water spray water vapor cooling quenching is produced is diffused among air.So, not only quick quenching,
Water-gas has also been reclaimed, water spray consumption is greatly reduced compared with traditional coke wet quenching, the dirt diffused in air is also significantly reduced
Contaminate thing.
Claims (4)
1. the coke quenching method in a kind of coking industry, it is characterized in that being at least made up of following process：
(1) water gas reaction temperature-fall period：The red coke released from coke oven occurs chemical reaction with vapor and produces water-gas, production
The water gas reaction heat absorption of unboiled water coal gas makes coke cool；
(2) pressurize water vapor temperature-fall period：Coke after cooling through water gas reaction is directly contacted in closed container with water
Occur the vaporization of water, coke is produced the vapor that can be used as gaseous heat source while cooling；The water vapor cooling
Process at least by the water spray vaporescence under the conditions of coke feed process, pressurization water vapor cooling tank closed process, water rate control,
Water vapor cooling tank pressure leak process and coke discharge process composition；
Watering vaporization is set to steam temperature-fall period between the water gas reaction temperature-fall period and pressurization water vapor temperature-fall period,
The process is that the coke watering after cooling to water gas reaction makes coke further cool, and produced vapor is used as the water
The reactants water steam of coal gas reaction temperature-fall period is used, and the coke that watering is vaporized after cooling of steaming enters pressurization water vapor cooling
Process；
Water gas reaction temperature-fall period that red coke and vapor react and the coke watering after cooling to water gas reaction are vaporized
The temperature-fall period that steams is that series connection is carried out continuously, and watering vaporization steams the coke after cooling respectively alternately to multiple pressure (hydraulic) waters in parallel
Vaporize in cooling tank and import, alternating water delivery progress pressurization water vapor cooled in the pressurization water vapor cooling tank in parallel respectively
Journey.
2. coke quenching method as claimed in claim 1, it is characterized in that the recovery method carried out to water produced steam is：To be pressurizeed steam
Change after the vapor importing vapor storage tank that temperature-fall period is produced, the import and export of the vapor storage tank are closed, external heat is used
Vapor in vapor storage tank is heated in source；Or only heated to importing the vapor in vapor storage tank, or
Sprayed water during heating also into the vapor storage tank, the pressure of vapor, temperature and the degree of superheat in regulation vapor storage tank；
The external heat source is heated to be the water-gas of water gas reaction temperature-fall period generation by heat exchanger heat exchange, or with the water coal
Heat or other thermals source heat exchange indirectly heat that gas burning is produced, or import the vapor storage using other high temperature and high pressure steams
Directly heated in tank, or this several method combination；The vapor storage tank is set up in parallel to be multiple, alternately imports water and steams
Gas, heating, the process for discharging vapor.
3. realize the device of coke quenching method described in claim 1, it is characterised in that at least the water-gas including water gas reaction is anti-
Cooling tank, and watering vaporization is answered to produce vapor and vaporize the cooling groove that steams for the watering that water gas reaction is used, and in closed bar
Water spray vaporizes the pressurization water vapor cooling tank for cooling and producing the vapor that can be used as gaseous heat source under part；Water-gas is anti-
Answer cooling tank coke export and watering vaporization steam cooling groove coke inlet be connected, watering vaporization steam cooling groove coke
Outlet is connected with pressurization water vapor cooling tank coke inlet；Water vapor cooling tank pressurize at least by water vapor cooling tank body, top
Steam outlet, tank body or top that closed closure mechanism, tank body top or top cover top are set are reached between lid, top cover and tank body
Cover sets coke opening to be used as coke inlet and outlet at the top of the water inlet composition of setting, water vapor cooling tank body, should
Tank body can be realized topples over up and down, loads coke under coke opening upwards state, and coke is discharged under coke Open Side Down state.
4. device as claimed in claim 3, it is characterized in that the closure mechanism between described water vapor cooling tank body and top cover
With following structure：The coke inlet of tank body and the bottom of top cover are respectively provided with outwardly edge, when top cover is contacted with tank body
When, the cocked bead of the rwo is embedded into the upper groove constituted below of sealing outer toroid；The sealing outer toroid is by two parts
Composition is, it is necessary to which two parts sealing outer toroid is closed up, it is necessary to which the two parts are close during depressurization in opposite directions from both sides during closed tank body
Envelope outer toroid is removed to both sides respectively.
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| CN105176546B (en) * | 2015-09-22 | 2018-07-17 | 天津大学 | Closed quenching and the method and apparatus for recycling thermal energy |
| CN105238422B (en) * | 2015-10-19 | 2017-12-05 | 天津大学 | A kind of closed quenching and the method and apparatus for reclaiming heat energy |
| CN105441091B (en) * | 2015-11-27 | 2018-07-31 | 天津大学 | Closed vaporization coke quenching device in coking industry |
| CN105567263B (en) * | 2016-03-10 | 2018-10-26 | 王平山 | Gas making and coking waste water treatment method are put out in a kind of red parch of coking |
| CN107779216B (en) * | 2016-08-24 | 2020-05-01 | 北京三聚环保新材料股份有限公司 | Biomass retort and biochar preparation method |
| CN106799113B (en) * | 2017-03-22 | 2023-03-17 | 江苏揽山环境科技股份有限公司 | Method and device for treating waste gas of coke quenching tower |
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