CN104531178B - Water jet closed coke quenching system - Google Patents
Water jet closed coke quenching system Download PDFInfo
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- CN104531178B CN104531178B CN201510029990.6A CN201510029990A CN104531178B CN 104531178 B CN104531178 B CN 104531178B CN 201510029990 A CN201510029990 A CN 201510029990A CN 104531178 B CN104531178 B CN 104531178B
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- spray
- injection
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- 239000000571 coke Substances 0.000 title claims abstract description 88
- 238000010791 quenching Methods 0.000 title claims abstract description 72
- 230000000171 quenching effect Effects 0.000 title claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000011084 recovery Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000009833 condensation Methods 0.000 claims abstract description 15
- 230000005494 condensation Effects 0.000 claims abstract description 15
- 238000001556 precipitation Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 75
- 238000002347 injection Methods 0.000 claims description 55
- 239000007924 injection Substances 0.000 claims description 55
- 238000004062 sedimentation Methods 0.000 claims description 33
- 238000004140 cleaning Methods 0.000 claims description 30
- 230000002745 absorbent Effects 0.000 claims description 13
- 239000002250 absorbent Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 67
- 239000000428 dust Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a water jet closed coke quenching system. The water jet closed coke quenching system comprises a coke quenching tower, a steam condensation and absorption system, a non-condensable gas recovery system and a fine coke precipitation and recovery system, wherein the steam condensation and absorption system comprises a steam condensation tower, a gas-collecting hood, a communicating pipe, a jet device and a spraying device; the gas-collecting hood is arranged at the top of the coke quenching tower, the communicating pipe is connected between the steam condensation tower and the gas-collecting hood, the jet device is arranged in the communicating pipe, the spraying device is arranged at the top of the steam condensation tower, and the steam condensation tower is communicated with the fine coke precipitation and recovery system through a first pipeline; and the non-condensable gas recovery system comprises a gas-liquid separator, a non-condensable gas recovery device and a jet flow device, the non-condensable gas recovery device is communicated with the steam condensation tower through a non-condensable gas guide pipe, the lower part of the non-condensable gas recovery device is communicated to the gas-liquid separator, and the jet flow device is arranged on the non-condensable gas recovery device and is used for jetting flow into the non-condensable gas recovery device. The water jet closed coke quenching system disclosed by the invention has the advantages of simple process flow and low capital construction investment, and can solve non-condensable gas produced by wet coke quenching and eliminate atmospheric pollution.
Description
Technical field
The present invention relates to a kind of closed quenching system of water flow jet, whole quenching system is made to produce using venturi principle
Negative pressure, belongs to wet quenching technical field.
Background technology
Traditional coke quenching method is also known as open type wet quenching, cold through spraying water in quenching tower equipped with red burnt coke quenching cart
But, part water is vaporized, and carries a large amount of dust, water droplet and harmful gass etc. secretly and enter air from quenching top of tower.At present, I
Most of independent coke-oven plant of state adopts this coke quenching method.Why this method is used widely is because that technical process is simple,
But have the shortcomings that two fatal, one is that red burnt sensible heat can not recycle；Two is to cause severe contamination to air.And dry put out
Jiao has that investment height, high energy consumption itself, complex process, technical difficulty are high, and large-scale promotion is also unrealistic.In recent years
Come, with the pay attention to day by day to energy-conservation and environmental protection for the people, changing traditional coke quenching method has been imperative.Therefore faced
One subject matter is how to solve that capital expenditure is few and quenching mode that can eliminate atmospheric pollution.
Ren Guoping " conventional wet quenching technological transformation is the application pre-test of environmental protection quenching and its waste heat recovery " (《Coal Chemical Industry》Increase
Periodical in July, 2013,210-212 page) in disclose a kind of technological transformation of " putting on shoes and wear hats " formula：It is will be straight for original tubular first
Row's formula quenching tower is changed to sealed quenching tower (this is " attaching the names of pre-determined candidates "), and script is all received to the waste gas of airborne release, waste
Collection, can be used for heating boiler soft water the coke quenching steam latent heat reclaiming simultaneously, improve boiler efficiency；Secondly produce during quenching
The fuel gas such as raw part CO, H2 can be collected in gas storage holder and be used；The coke breeze periodic cleaning again trapping got off is collected,
This two can be referred to as " wearing boots ", all can additional income.The problem of the method is common using Zigzag type column plate and settler
Collect dust, design is more complicated；And in order to avoid produce negative pressure, also especially employ check valve and electromagnetic valve with avoid by
The negative pressure accident that this causes.And the method does not account for following problem：1st, if do not produced negative pressure in quenching system, in quenching
During the steam producing more can only overflow in quenching tower bottom；If the 2, condensed with heat exchanger in quenching top of tower,
Produce 9 tons of steam in 15 minutes, and total condensation is got off, and large-scale heat exchange group must be needed to realize, but large-scale heat exchanger
It is insoluble problem in actual field construction how tower top is installed；3rd, substantial amounts of coke powder, the property of coke powder are contained in steam
As long as matter is wall built-up, it is difficult to clean up, the coke powder therefore how cleared up in heat exchanger is problem demanding prompt solution；4th, have for the energy
Effect utilizes and the demands such as less energy source emission, for the recycling of the hot water after heat exchange and the water gas of collection, is to produce
The middle problem needing to solve；5th, for the effective control of oxygen content in water gas, it is also to need to solve during this area produces
Problem.
Content of the invention
In order to solve the above problems, the invention provides a kind of water flow jet closed quenching system, its technical process letter
Single, capital expenditure is few, can eliminate atmospheric pollution, and partly can utilize waste heat, and can collect a small amount of quenching coal during quenching
Gas.
According to an aspect of the present invention, it provides a kind of water flow jet closed quenching system, a kind of water flow jet
Closed quenching system, including：Quenching tower, steam condensed absorbent system, fixed gas recovery system and coke breeze precipitation reclaim system
System, wherein：Described steam condensed absorbent system includes steam condensing tower, gas skirt, communicating pipe, injection apparatus and spray equipment；
Described gas skirt, located at the top of described quenching tower, is connected to the top of described steam condensing tower and described gas collection described communicating pipe
Between cover, described injection apparatus are arranged in described communicating pipe and the direction jet water course to described steam condensing tower, described spray
Shower device is arranged at the top of described steam condensing tower and sprays into described steam condensing tower, the bottom of described steam condensing tower
Precipitate recovery system by the first pipeline and described coke breeze to connect；
Described fixed gas recovery system at least includes gas-liquid separator, is made up of not the many Venturi tubes being set up in parallel
Solidifying gas recovering device and mjector, the top of described fixed gas retracting device is cold with described steam by fixed gas airway
The top connection of solidifying tower, the bottom of described fixed gas retracting device is communicated to described gas-liquid separator, described mjector setting
In described fixed gas retracting device top and to jet in described fixed gas retracting device.
Preferably, described communicating pipe is arranged for downward-sloping 30 °～45 ° to described steam condensing tower by described gas skirt.
Preferably, described injection apparatus include many injection arms of the arranged radially along described communicating pipe, described in every
Injection arm on be provided with multiple for spraying effluent column, water column periphery scatter formation vaporific, and cloudy appearance formed one
First shower nozzle of layer moisture film, so that form negative pressure in communicating pipe.
Preferably, the injection direction of described first shower nozzle is consistent with the axial direction of described communicating pipe.
Preferably, described steam condensed absorbent system also includes the cleaning for cleaning described injection arm and the first shower nozzle
Device.
Preferably, described cleaning device includes cleaning sprayer and two cleaning pipes being oppositely arranged, two described cleaning pipes
The position of correspondence described injection arm is respectively provided with described cleaning sprayer.
Preferably, the link position of described fixed gas airway and described steam condensing tower be higher than described communicating pipe with described
The link position of steam condensing tower；The lower section setting screen of described spray equipment, described screen is respectively positioned on described fixed gas inducing QI
The inside of the described steam condensing tower between pipe and communicating pipe.
Preferably, described spray equipment includes spraying house steward, many spray arms and the second shower nozzle, described spray house steward with
Described injection house steward's connection, many described spray arms are both connected on described spray house steward, and described spray arm is 15-40
Root, 10-30 described second shower nozzle of setting on every described spray arm.
Preferably, described spray arm is removably connected on described spray house steward, and described second shower nozzle is detachable
It is connected on described spray arm likes.
Preferably, described steam condensed absorbent system also includes the second pipeline and first following of being located on described second pipeline
Ring pump and First Heat Exchanger, one end of described second pipeline extend in described coke breeze precipitation recovery system, the other end and spray
The spray house steward connection of device.
Preferably, described injection apparatus also include spraying house steward, and every described injection arm is always all connected to described injection
Pipe, wherein said injection house steward is provided with 15-40 root injection arm, and every injection arm is provided with 10-30 described the
One shower nozzle.
Preferably, the injection house steward of described injection apparatus and the spray house steward of described spray equipment pass through the 3rd pipeline even
Logical.
Preferably, described spray arm is removably connected on described spray house steward, and described second shower nozzle is detachable
It is connected on described spray arm likes.
Preferably, described fixed gas recovery system also includes gas storage holder, the 4th pipeline, the 5th pipeline and is located at the described 4th
Second circulation pump on pipeline and the second heat exchanger, one end of described 4th pipeline is connected with the bottom of described gas-liquid separator,
The other end is connected with described mjector；Described 5th pipeline connection is passed through with described gas storage holder in the upper end of described gas-liquid separator
So that fixed gas is collected to described gas storage holder.
Preferably, described 5th pipeline is provided with electric control valve to control tolerance size.
Preferably, in the control valve of described electric control valve and described spray equipment and quenching tower flusher control valve
Carry out chain.
Preferably, coke breeze precipitation recovery system includes coke breeze sedimentation tank and screw rod crane, sets in described coke breeze sedimentation tank
Put dividing plate described coke breeze sedimentation tank to be divided into the fluid zone on top and the coke breeze area of bottom；Described screw rod crane tilts to set
It is placed in described coke breeze sedimentation tank, its upper end is stretched out outside described coke breeze sedimentation tank.
Preferably, described fluid zone is connected to described 4th pipeline by the 6th pipeline.
Preferably, described coke breeze sedimentation tank has closure, and it has three and is respectively used to make the first pipeline, the second pipeline
The through hole sealingly passing through with the 6th pipeline, described first pipeline, the second pipeline and the 6th pipeline all stretch to described fluid zone；
Opening for making described screw rod crane stretch out is further opened with described closure.
Preferably, the bottom of described coke breeze sedimentation tank is provided with slope, described slope is provided with described slope
Under scrape coke breeze to be scraped the scraper plate of the coke breeze accumulation region to described coke breeze sedimentation tank, the charging aperture of described screw rod crane is located at
Described coke breeze accumulation region.
Preferably, the fuel gas after fixed gas is intensified in described gas storage holder, as tube furnace.
Preferably, the heat exchange medium of described second heat exchanger is used for refrigeration system or heating system.
The water flow jet closed quenching system of the present invention has beneficial effect following aspects：
A () can keep original wet quenching tower constant, increase steam condensation and inhale only after original wet quenching tower
Receipts system, fixed gas recovery system and coke breeze precipitation recovery system, simpler than dry coke quenching technical process, capital expenditure is little.
B fixed gas that the system of () present invention produces during can solve the problem that wet quenching, eliminates atmospheric pollution.
C the system of () present invention can recoverer be shared out bonus burnt sensible heat, and give the direction of utilization.
D the steam condensed absorbent system in () present invention is carried out by current direct freezing method using injection apparatus and spray equipment
Operation, substantially reduces the volume of steam condensing tower, expense of reducing investment outlay.
E the steam condensed absorbent system in () present invention and fixed gas recovery system are all using venturi principle as generation
The system of negative pressure, crushing low to installation pipeline section requirement is little, can extract height and contain humid gas and various dirty fluid.
Brief description
Fig. 1 is the structural representation of the water flow jet closed quenching system of the present invention；
Fig. 2 is the structural representation of injection apparatus and cleaning device；
Fig. 3 is the structural representation of coke breeze sedimentation tank.
Description of reference numerals
10：Quenching tower
21：Gas skirt 22：Injection apparatus
23：Communicating pipe 24：Steam condensing tower
25：Spray equipment 26：Screen
27：First circulation pump 28：First Heat Exchanger
31：Fixed gas airway 32：Mjector
33：Fixed gas retracting device 34：Gas-liquid separator
35：Gas storage holder 36：Second circulation pump
37：Second heat exchanger 38：Electric control valve
41：Coke breeze sedimentation tank 42：Screw rod crane
43：Dividing plate 44：Slope
45：Scraper plate 46：Closure
51：First pipeline 52：Second pipeline
53：3rd pipeline 54：4th pipeline
55：5th pipeline 56：6th pipeline
201：Injection house steward 202：Injection arm
203：First shower nozzle 301：Cleaning pipe
302：Cleaning sprayer
Specific embodiment
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings, but not as the limit to the present invention
Fixed.
As shown in figure 1, the water flow jet of embodiments of the invention closed quenching system includes quenching tower 10, steam condensation
Absorption system, fixed gas recovery system and coke breeze precipitation recovery system, wherein steam condensed absorbent system includes steam condensation
Tower 24, gas skirt 21, communicating pipe 23, injection apparatus 22 and spray equipment 25；Gas skirt 21 is enclosed and is arranged on quenching
The top of tower 10, and with connecting gas skirt 21 and steam condensing tower 24 communicating pipe 23, downward-sloping 30 ° of described communicating pipe 23～
45 ° about, thus the dust comprising vapor, fixed gas and a large amount of dust from quenching tower 10 is passed through this gas skirt 21
Import communicating pipe 23, set in the porch (communicating pipe 23 is defined as porch with the junction of gas skirt 21) of described communicating pipe 23
There are described injection apparatus 22, with further reference to Fig. 2, described injection apparatus 22 include injection house steward 201, some rows injection arm
202, injection arm 202 is arranged on injection house steward 201, and on injection arm 202, equipped with the first shower nozzle 203, (the first shower nozzle 203 is
Efficiently shower nozzle), and the direction of jet water course is parallel with described communicating pipe 23, water column periphery scatter formed vaporific, simultaneously in mist
Shape appearance forms water membrane, so that the water vapor portion condensation in above-mentioned dust.Work using above-mentioned first shower nozzle 203
With tiny structure can be produced within communicating pipe 23 when spraying water for (1), the resistance of steam can be reduced；(2) sprayed within communicating pipe 23
Drench cooling, water vapour partial condensation can be made.And, described injection apparatus 22 need to be readily disassembled to be easy to keep in repair.
In addition, in order to prevent from having coke breeze to deposit at the first shower nozzle 203 in described injection apparatus 22, steam condensed absorbent system
System also includes cleaning device, and cleaning device includes cleaning pipe 301 and cleaning sprayer 302, and described cleaning device is intermittent operation,
Thus the dust adhering on injection apparatus 22 described in routine cleaning.In the present embodiment, as shown in Fig. 2 cleaning pipe 301 is relatively to set
Two putting, the position of two cleaning pipe 301 corresponding injection arms 202 is respectively provided with cleaning sprayer 302, that is, sprays at every
The two ends penetrating arm 202 are correspondingly arranged a cleaning sprayer 302 respectively.
The internal structure of the steam condensing tower 24 of steam condensed absorbent system 20 in the present embodiment is specially：Cold in steam
Solidifying tower 24 top is provided with spray equipment 25, communicating pipe 23 and going out that steam condensing tower 24 is connected below described spray equipment 25
It is provided with screen 26, the going out of the communicating pipe 23 that described spray equipment 25 and screen 26 are respectively positioned on steam condensing tower 24 between mouthful end
Between the port of export that mouthful end and fixed gas airway 31 are connected with steam condensing tower 24, described spray equipment 25 always includes spray
Pipe, many spray arms and the second shower nozzle, described spray house steward is connected with described injection house steward, and many described spray arms all connect
Be connected on described spray house steward upper (due to the annexation of spray house steward, spray arm and the second shower nozzle and structure easily imagination
Go out, therefore in figure does not indicate), described spray arm is 15-40 root, and on every described spray arm, setting 10-30 is described
Second shower nozzle (the second shower nozzle is also efficient shower nozzle).For the ease of cleaning and changing, described spray arm removably connects
On described spray house steward, described second shower nozzle is removably connected on described spray arm.The water that second shower nozzle sprays
Post periphery is scattered, and formation is vaporific, and simultaneously in cloudy appearance formation water membrane, uncooled vapor enters steam condensing tower 24
Afterwards, the current spray condensation being sprayed by spray equipment 25 again, and is distributed through 26 uniform fluid flow of screen, be conducive to vapor with
Condensed fluid is fully contacted, and the material of screen 26 can preferably have superior acidproof, alkaline-resisting, decay resistance material.Contain
The condensed fluid having coke breeze flows into coke breeze sedimentation tank 41 through the first pipeline 51 from bottom of towe, and fixed gas is then from steam condensing tower 24 top
Enter in fixed gas recovery system 30 through fixed gas airway 31.
The fixed gas recovery system 30 of the present embodiment comprises fixed gas retracting device 33, and it utilizes venturi principle, if by
Dry root Venturi tube composition arranged side by side, arranges mjector 32 at the top of fixed gas retracting device 33, from mjector
During 32 water flow jet, in fixed gas retracting device 33, form negative pressure, thus fixed gas is sucked in Venturi tube simultaneously
Enter gas-liquid separator 34 with current.Wherein, in order that the liquid (condensed water) reclaiming in gas-liquid separator 34 recycles, gas
Liquid/gas separator 34 is connected with mjector 32 by the 4th pipeline 54, the 4th pipeline 54 arranges the second heat exchanger 37 and second and follows
Ring pump 36, the condensed water in gas-liquid separator 34 by the second heat exchanger 37 cooling after, as the water source of mjector 32.Work as gas
Can enter in coke breeze sedimentation tank 41 when water level in liquid/gas separator 34 is too high.Additionally, gas-liquid separator 34 top passes through the 5th managing
Road 55 (because the medium for deriving is gas, the therefore the 5th pipeline 55 can adopt airway) direct with gas storage holder 35 phase
Connect, and electric control valve 38 can be arranged on the 5th pipeline 55, carry out the control of tolerance size with electric control valve 38.Electric adjustable
Section valve 38 is carried out even with the control valve (not shown) of described spray equipment 25 and the control valve (not shown) of quenching tower flusher
Lock.After fixed gas enters gas storage holder 35, being delivered directly to product workshop cleaning procedure, or fixed gas is in gas storage holder 35
After intensified, can be used as the fuel gas of tube furnace.By such fixed gas recovery system 30, produced during wet quenching
Fixed gas can be recovered process, thus avoiding in air discharge.
As shown in figure 3, coke breeze precipitation recovery system 40 includes coke breeze sedimentation tank 41, set at described coke breeze sedimentation tank 41 opening
Put closure 46 to seal.Slope 44 is arranged at bottom, the position of the first pipeline 51 in corresponding steam condensing tower 24 for the described slope 44
For high-end, the other end is low side, there is scraper plate 45 on described slope 44, the condensed fluid containing coke breeze directly leads to via the first pipeline 51
Enter coke breeze sedimentation tank 41 bottom, through coke breeze sedimentation tank 41, coke breeze precipitates, with 45 coke breezes of scraper plate from coke breeze sedimentation tank
41 high-end is scraped to low side, so that coke breeze is gathered, forms coke breeze accumulation region.This coke breeze accumulation region can be coke breeze sedimentation tank 41 bottom
A certain fixed area is it is also possible to be less than the specific groove portion region of coke breeze sedimentation tank 41 bottom.In conjunction with shown in Fig. 3, sink in coke breeze
One screw rod crane 42 is installed in shallow lake pond 41, the feeding end of screw rod crane 42 is located at the coke breeze accumulation of coke breeze sedimentation tank 41
Area.The coke breeze accumulation region of the present embodiment is feeding end (i.e. the lower end of screw rod crane shown in Fig. 3 42) institute of screw rod crane 42
The groove portion region probeing into.The discharge end of screw rod crane 42 is correspondingly arranged ribbon conveyer (not shown), thus utilizing
Coke breeze in 42 coke breeze sedimentation tanks 41 of screw rod crane is delivered on ribbon conveyer.Grabbed with screw rod crane 42 replacement coke breeze
Bucket can take out coke breeze from coke breeze sedimentation tank 41 in the state of airtight.Coke breeze sedimentation tank 41 middle and upper part install dividing plate 43, make every
The top formation fluid zone of plate 43, and the coke breeze area formed below of dividing plate 43, thus more effectively promoting coke breeze to precipitate, prevent powder
Jiao brings in the clear water on dividing plate 43 upper strata.In order to recycle the clear water on coke breeze sedimentation tank 41 upper strata, can be in coke breeze sedimentation tank
Second pipeline 52 is set between 41 and spray equipment 25, setting first circulation pump 27 and First Heat Exchanger 28 on the second pipeline 52,
Pressurizeed through first circulation pump 27 by the second pipeline 52, and heat exchange is carried out by First Heat Exchanger 28, the water temperature after heat exchange should
Control at 35 DEG C～45 DEG C, deliver to the spray equipment 25 at steam condensing tower 24 top and the injection apparatus of communicating pipe 23 porch
22.The spray house steward of the injection house steward 201 of the injection apparatus 22 in the present embodiment and spray equipment 25 passes through the 3rd pipeline 54 even
Logical.Heat after First Heat Exchanger 28 heat exchange is convertible into other energy storage or use, for example utilize remaining hot water refrigeration and
Winter heating etc..The water that whole quenching system is consumed, on steam condensing tower 24, available middle water supplements.
In addition, closure 46 has three being respectively used to make the first pipeline 51, the second pipeline 52 and the 6th pipeline 56 seal
The through hole (not shown) that ground passes through, the first pipeline 51, the second pipeline 52 and the 6th pipeline 56 all stretch to described fluid zone；
Opening for making screw rod crane 42 stretch out is further opened with described closure.
EXPERIMENTAL EXAMPLE
Using JNDK43-99D Formed Coke Furnace, 400,000 tons of coke is produced in design per year, and quenching mode uses spray cooling, nature
Traditional quenching mode of quenching.Data below is to carry out detection in JNDK43-99D Formed Coke Furnace to draw：
(1) the quenching time is 155 seconds, 100 DEG C of vapor (steam) temperature average out to, and interval time of coming out of the stove is 15 minutes；Wet quenching
Per car loads red burnt 18 tons, and 1 ton of red Jiao will consume 0.51 ton of water, produces quantity of steam 9t/ car, and producing quantity of steam per hour is 36
Ton；The sensible heat that one ton of red Jiao is taken out of is 1.465GJ, and 400,000 tons is 58.6 ten thousand GJ, and Exposure degree rate is 50%, and heat energy is big within 1 year
About reclaim 29.3 ten thousand GJ.
(2) pass through detection and analysis to calculate the yield such as CO during quenching is 10m3/ ton is burnt, can produce per hour and not coagulate
Gas 720m3(actually 720m3The effective time that fixed gas produces is 12 minutes), calculated with 2 times of amplification coefficients, fixed gas reclaims
System throughput is up to 7200m3/ hour, vacuum produced by fixed gas recovery system is 40KPa, designs Venturi tube number
Measure for 5, Venturi tube water inlet aperture 100mm, mjector water flow pressure 0.5MPa, gas liquid ratio be 6:1, the flow of circulating pump
For 1200 ton hour.This recyclable fixed gas 4,000,000 m3/ year
After (3) 1 tons of 100 DEG C of steam are condensed, and temperature is down to 6 tons of water of 60 DEG C of needs, quantity of steam produced by 1 hour
Required condensed water is 216 tons of water (effective time of the cool solidifying water of actual consumption is 12 minutes), is calculated with 1.5 times of amplification coefficients, follows
The flow type selecting of ring pump is advisable for 1800～2000 ton hour, and wherein each sprinkler pressure is 0.3MPa.
(4) ten thousand tons of water/years of recyclable 0.5*40=20, coke per ton can reclaim coke powder 1.7Kg more, 1 year recyclable 680
Ton.
Additionally, according to above-mentioned technique, whole quenching tower is closed, no longer has a large amount of rows of dust and harmful gass
Put, and because process modification is based on original wet quenching technique, also do not have that capital construction cost is excessive, technical difficulty is too high
Problem.
Certainly, the above is the preferred embodiment of the present invention it is noted that ordinary skill for the art
For personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (10)
1. the closed quenching system of a kind of water flow jet, including：Quenching tower, steam condensed absorbent system, fixed gas recovery system
And coke breeze precipitation recovery system, wherein：Described steam condensed absorbent system includes steam condensing tower, gas skirt, communicating pipe, spray
Injection device and spray equipment；Described gas skirt, located at the top of described quenching tower, is connected to described steam condensation described communicating pipe
Between the top of tower and described gas skirt, described injection apparatus are arranged in described communicating pipe and the side to described steam condensing tower
To jet water course, described spray equipment is arranged at the top of described steam condensing tower and sprays into described steam condensing tower, institute
The bottom stating steam condensing tower is connected by the first pipeline and described coke breeze precipitation recovery system；
The fixed gas that described fixed gas recovery system at least includes gas-liquid separator, is made up of the many Venturi tubes being set up in parallel
Retracting device and mjector, fixed gas airway and described steam condensing tower are passed through in the top of described fixed gas retracting device
Top connection, the bottom of described fixed gas retracting device is communicated to described gas-liquid separator, and described mjector is arranged at institute
State the top of fixed gas retracting device and to jet in described fixed gas retracting device；
Described injection apparatus include many injection arms of the arranged radially along described communicating pipe, on every described injection arm all
Be provided with multiple for spraying effluent column, water column periphery scatter formation vaporific, and cloudy appearance formed water membrane first
Shower nozzle, so that form negative pressure, wherein, the injection direction of described first shower nozzle and the axial direction one of described communicating pipe in communicating pipe
Cause.
2. the closed quenching system of water flow jet according to claim 1, wherein, described communicating pipe is by described gas skirt extremely
Downward-sloping 30 °～45 ° settings of described steam condensing tower；
Described coke breeze precipitation recovery system includes coke breeze sedimentation tank and screw rod crane, in described coke breeze sedimentation tank setting dividing plate with
Described coke breeze sedimentation tank is divided into the fluid zone on top and the coke breeze area of bottom；Described screw rod crane is obliquely installed in described
In coke breeze sedimentation tank, its upper end is stretched out outside described coke breeze sedimentation tank.
3. the closed quenching system of water flow jet according to claim 1, wherein, described steam condensed absorbent system is also wrapped
Include the cleaning device for cleaning described injection arm and the first shower nozzle, it is relative with two that described cleaning device includes cleaning sprayer
The cleaning pipe of setting, the position of two described cleaning pipe correspondence described injection arms is respectively provided with described cleaning sprayer.
4. the closed quenching system of water flow jet according to claim 2, wherein, described fixed gas airway and described steaming
The link position of vapour condensing tower is higher than the link position of described communicating pipe and described steam condensing tower；The lower section of described spray equipment
Setting screen, described screen is respectively positioned on described fixed gas airway and the inside of the described steam condensing tower between communicating pipe, institute
State spray equipment and include spraying house steward, many spray arms and the second shower nozzle, many described spray arms are both connected to described spray
Drench on house steward, described spray arm is 15-40 root, 10-30 described second shower nozzle of setting on every described spray arm.
5. the closed quenching system of water flow jet according to claim 4, wherein, described spray arm removably connects
It is connected on described spray house steward, described second shower nozzle is removably connected on described spray arm.
6. the closed quenching system of water flow jet according to claim 4, wherein, described steam condensed absorbent system is also wrapped
Include the second pipeline and the first circulation pump being located on described second pipeline and First Heat Exchanger, one end of described second pipeline is stretched into
To in described coke breeze precipitation recovery system, the other end is connected with the spray house steward of spray equipment；Described injection apparatus also include spraying
Firing association manages, and described spray house steward is connected with described injection house steward, and every described injection arm is all connected to described injection house steward, its
Described in be provided with 15-40 root injection arm on injection house steward, every injection arm is provided with described first spray of 10-30
Head；Described spray arm is removably connected on described spray house steward, and described second shower nozzle is removably connected to institute
State on spray arm.
7. the closed quenching system of water flow jet according to claim 6, wherein, the injection house steward of described injection apparatus with
The spray house steward of described spray equipment passes through the 3rd pipeline connection, and described fixed gas recovery system also includes gas storage holder, the 4th pipe
Road, the 5th pipeline and the second circulation pump being located on described 4th pipeline and the second heat exchanger, one end of described 4th pipeline with
The bottom connection of described gas-liquid separator, the other end is connected with described mjector；The upper end of described gas-liquid separator with described
Gas storage holder is by described 5th pipeline connection so that fixed gas is collected to described gas storage holder.
8. the closed quenching system of water flow jet according to claim 7, wherein, described 5th pipeline is provided with electronic
Regulating valve to control tolerance size, flusher in the control valve of described electric control valve and described spray equipment and quenching tower
Control valve carries out chain.
9. the closed quenching system of water flow jet according to claim 7, wherein, the 6th pipeline is passed through even in described fluid zone
It is connected on described 4th pipeline；Described coke breeze sedimentation tank has closure, its have three be respectively used to make the first pipeline, second
The through hole that pipeline and the 6th pipeline sealingly pass through, described first pipeline, the second pipeline and the 6th pipeline all stretch to described liquid
Body area；Opening for making described screw rod crane stretch out is further opened with described closure.
10. the closed quenching system of water flow jet according to claim 2, wherein, the bottom of described coke breeze sedimentation tank sets
It is equipped with slope, described slope is provided with and scrapes up and down on described slope to scrape coke breeze to the coke breeze of described coke breeze sedimentation tank
The scraper plate of accumulation region, the charging aperture of described screw rod crane is located at described coke breeze accumulation region.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029990.6A CN104531178B (en) | 2015-01-21 | 2015-01-21 | Water jet closed coke quenching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510029990.6A CN104531178B (en) | 2015-01-21 | 2015-01-21 | Water jet closed coke quenching system |
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| CN104531178A CN104531178A (en) | 2015-04-22 |
| CN104531178B true CN104531178B (en) | 2017-02-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105154108B (en) * | 2015-10-23 | 2017-09-26 | 山东永能节能环保服务股份有限公司 | The dedusting of water quenching, desulfurization, receive water, carry hot systems |
| CN107779210A (en) * | 2016-08-31 | 2018-03-09 | 邢台旭阳科技有限公司 | A kind of wet quenching system and the method for coke quenching steam recovery |
| CN111040787A (en) * | 2020-01-08 | 2020-04-21 | 张涛 | Wet coke quenching device system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09132781A (en) * | 1995-11-07 | 1997-05-20 | Sumitomo Metal Ind Ltd | Dust-collector of bucket facility of coke oven |
| JP2002285166A (en) * | 2001-03-26 | 2002-10-03 | Kawasaki Steel Corp | Wet extinguisher for chamber oven-type coke oven |
| CN201043166Y (en) * | 2007-05-24 | 2008-04-02 | 中冶焦耐工程技术有限公司 | Dome type dust removing and coke quenching tower |
| CN201343515Y (en) * | 2008-07-31 | 2009-11-11 | 武汉钢铁(集团)公司 | Dust removal device with water curtain for wet quenching tower |
| CN203668309U (en) * | 2013-12-23 | 2014-06-25 | 张建平 | Device for recycling water vapor of coke quenching tower subjected to wet coke quenching and removing dust |
| CN204022749U (en) * | 2014-04-30 | 2014-12-17 | 江苏孔雀石新能源科技有限公司 | A kind of on original coke quenching tower improved coke quenching device |
| CN204550464U (en) * | 2015-01-21 | 2015-08-12 | 邢台旭阳煤化工有限公司 | The closed quench system of a kind of water flow jet |
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