CN110280032A - A kind of recovery system for energy, moisture and dust in high-temperature flue gas - Google Patents
A kind of recovery system for energy, moisture and dust in high-temperature flue gas Download PDFInfo
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- CN110280032A CN110280032A CN201910686792.5A CN201910686792A CN110280032A CN 110280032 A CN110280032 A CN 110280032A CN 201910686792 A CN201910686792 A CN 201910686792A CN 110280032 A CN110280032 A CN 110280032A
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- water
- evaporator
- vaporization chamber
- recovery system
- water outlet
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000003546 flue gas Substances 0.000 title claims abstract description 57
- 238000011084 recovery Methods 0.000 title claims abstract description 43
- 239000000428 dust Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 156
- 230000008016 vaporization Effects 0.000 claims abstract description 122
- 238000009834 vaporization Methods 0.000 claims abstract description 89
- 238000001816 cooling Methods 0.000 claims abstract description 54
- 239000002351 wastewater Substances 0.000 claims abstract description 39
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 32
- -1 deduster Chemical compound 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 58
- 238000005192 partition Methods 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 238000010025 steaming Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 238000004064 recycling Methods 0.000 description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 6
- 238000012913 prioritisation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0058—Use of waste energy from other processes or sources, e.g. combustion gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0064—Feeding of liquid into an evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/05—Separating dispersed particles from gases, air or vapours by liquid as separating agent by condensation of the separating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention belongs to high-temperature flue gas recovery technology fields, and in particular to a kind of recovery system for energy, moisture and dust in high-temperature flue gas；Including deduster, blower, chimney, vaporising device, water cooling plant and steam pipe；Vaporising device includes primary heater and vaporization chamber, and the liquid outlet of vaporization chamber is connected to the water inlet of primary heater, and the water outlet of primary heater is connected to the liquid return hole of vaporization chamber；Deduster is connected to by blower and primary heater with chimney air intake；Water cooling plant includes mixing wastewater with air room, hot-tub and water cooling pond, the water outlet of water cooling pond is connected to mixing wastewater with air room, negative pressure line is provided at the water outlet of mixing wastewater with air room, the water outlet of negative pressure line extends in hot-tub, and the water outlet of hot-tub is connected to water cooling pond；Vaporization chamber is connected to by steam pipe with mixing wastewater with air room.The recovery system a large amount of thermal energy and can be used in recovered flue gas, and can be avoided the dust in flue gas and be directly discharged to the case where causing environmental pollution in atmosphere generation.
Description
Technical field
The invention belongs to high-temperature flue gas recovery technology fields, and in particular to one kind for energy in high-temperature flue gas, moisture and
The recovery system of dust.
Background technique
In alumina producing, calcination department be aluminium hydroxide (containing attached water and the crystallization water) is heated to 1105 DEG C~
1150 DEG C of high temperature discharges, make it become 145 DEG C~165 DEG C of gas discharging, and discharge capacity is up to 0.74 ton of water vapour/ton oxidation
Aluminium；It further include composed by the gas composition after fired combustion other than institute's band heat in water in the production process of the aluminium oxide
The heat of flue gas institute band.
And state-of-the-art process flow at present is as shown in Fig. 1, flue gas is delivered in heat exchanger 19 after coming out through air-introduced machine,
After the heat in flue gas is partially absorbed by heat exchanger 19 in being emitted into chimney, still, which can only absorb 125~
Heat between 165 DEG C, there are also high-temperature gas after 70% heat, 0.74 ton of vapor/ton aluminium oxide and burning is then whole
Into in atmosphere；
In addition, the aluminum oxide dust in the production process of aluminium oxide containing 50 milligrams/cubic metre in generated gas, it will
The flue gas and above-mentioned heat and vapor are directly discharged to will cause the wave of the pollution of environment and a large amount of energy in atmosphere
Take.
Therefore, the recovery system for inventing a kind of energy that can be recycled in high-temperature flue gas, moisture and dust, is this field skill
Art personnel technical problem urgently to be resolved.
Summary of the invention
In order to solve the above problems existing in the present technology, the present invention provide it is a kind of for recycle energy in high-temperature flue gas,
The recovery system of moisture and dust, with the thermal energy, the moisture that solve in flue gas existing in the prior art are unable to get utilization and make
The technical issues of at waste.
The present invention implements by the following technical programs:
A kind of recovery system for energy, moisture and dust in high-temperature flue gas, including deduster, blower, chimney, evaporation
Device, water cooling plant and steam pipe；
The vaporising device includes primary heater and vaporization chamber, and the liquid outlet of the vaporization chamber passes through heat pump and the master
The water inlet of heater is connected to, and the water outlet of the primary heater is connected to the liquid return hole of the vaporization chamber；
The outlet air end of the deduster passes sequentially through the blower and the primary heater and is connected to the chimney air intake；
The water cooling plant includes mixing wastewater with air room, hot-tub and water cooling pond, and the water outlet of the water cooling pond passes through cold water
Pump is connected to the mixing wastewater with air room, and negative pressure line is provided at the water outlet of the mixing wastewater with air room, the negative pressure line
Water outlet extends in the hot-tub, and the water outlet of the hot-tub is connected to the water cooling pond；
The vaporization chamber is connected to by the steam pipe with the mixing wastewater with air room.
In order to preferably realize the present invention, make further optimization in said structure, the primary heater includes heating
Chamber and the heating pipeline being arranged in inside the heating chamber, the water inlet of the water outlet of the heat pump and the heating pipeline
The water outlet of end connection, the heating pipeline is connected to the liquid return hole of the vaporization chamber, the blower by the heating chamber and
The chimney connection.
In order to preferably realize the present invention, make further optimization in said structure, the vaporising device further includes the
One condensate water pot, the heating chamber are connected to the water inlet end of first condensate water pot.
In order to preferably realize the present invention, make further optimization in said structure, be provided on the vaporization chamber into
Expects pipe and discharge nozzle, the feed pipe and the discharge nozzle are connected to the vaporization chamber.
In order to preferably realize the present invention, make further optimization in said structure, the water cooling plant further includes cold
But the water outlet of tower, the hot-tub is connected to by heat-exchanger pump with the water inlet end of the cooling tower, the water outlet of the cooling tower
It is connected to the water cooling pond.
In order to preferably realize the present invention, make further optimization in said structure, be provided in the hot-tub every
The hot-tub is divided into reservoir and spillway basin by plate, the partition, and the water outlet of the negative pressure line is located at the reservoir
It is interior, and the height of the partition be higher than the negative pressure line water outlet height, the water outlet of the spillway basin with it is described cold
But the water inlet end connection of tower.
In order to preferably realize the present invention, make further optimization in said structure, which further includes evaporation
Device and secondary heater, the primary heater are connected to by the secondary heater with the chimney, and the evaporator includes the first steaming
Room and the first heating room are sent out, the vaporization chamber is connected to by steam pipe with the first heating room of the evaporator, the evaporator
The first vaporization chamber be connected to the mixing wastewater with air room by steam pipe, and the evaporator passes through heat pump and the pair heating
Device connection.
In order to preferably realize the present invention, make further optimization in said structure, first heating is arranged on room
There is discharge outlet, the second condensate water pot is provided at the discharge outlet.
In order to preferably realize the present invention, make further optimization in said structure, which further includes flash distillation
The structure of device and D evaporator, the D evaporator is identical as the structure of the evaporator, the first vaporization chamber point of the D evaporator
Room is not heated with the first of the evaporator and the flash vessel is connected to, and the flash vessel passes through the second steam pipe and the steaming
Send out the first heating room connection of device.
In order to preferably realize the present invention, make further optimization in said structure, which further includes second
First vaporization chamber of punishment in advance pump, the evaporator is connected to by second punishment in advance pump with the first vaporization chamber of the D evaporator.
In conclusion the present invention has following technical effect that
Water cooling plant in the recovery system forms the water column negative pressure of 7.2~10.1m using negative pressure line, makes in vaporization chamber
Boiling point be reduced to 56~60 DEG C, heat pump squeezes into the vaporizing raw liquor in vaporization chamber in heater, is heating vaporizing raw liquor
Flue gas in device with deduster discharge carries out heat exchange, which the energy in flue gas can be used, and keeps evaporation former
Partial moisture in liquid flashes to vapor, and is emitted into mixing wastewater with air room, increases the concentration of vaporizing raw liquor；Meanwhile cigarette
After gas and vaporizing raw liquor carry out heat exchange, the vapor in flue gas can be condensed into liquid water, and the vapor condensation in flue gas
During can absorb dust in flue gas, to have the function that purifying smoke.
In addition, prioritization scheme of the invention also has following technical effect that
(1) prioritization scheme of the invention is that heating chamber is connected to the first condensate water pot, vapor and heating tube in flue gas
After vaporizing raw liquor in road carries out heat exchange, the temperature of vapor can condense into liquid water after reducing in flue gas, and be gathered in and add
Heat is intracavitary, and being gathered in the liquid water in heating chamber can be then discharged by the first condensate water pot, be recycled, so that avoiding will be containing oxidation
The case where liquid water of aluminum dust is directly discharged in atmosphere and causes environmental pollution generation.
(2) prioritization scheme of the invention is to be provided with feed pipe and discharge nozzle on vaporization chamber, in recovery system work
In the process, staff can add vaporizing raw liquor into vaporization chamber by feed pipe, utilize the height of the flue gas of deduster discharge
Moisture removal in vaporizing raw liquor increases the concentration of vaporizing raw liquor by temperature, and passes through discharge nozzle for the vaporizing raw liquor of high concentration
Discharge, making the recovery system, it is more convenient to use.
(3) it further includes evaporator and secondary heater that prioritization scheme of the invention, which is the recovery system, and the evaporator and pair add
The utilization rate of the heat of flue gas can be improved in the setting of hot device, to improve the recovering effect of the recovery system.
(4) it further includes flash vessel and D evaporator that prioritization scheme of the invention, which is the recovery system, flash vessel and D evaporator
Setting can by other equipment generate steam be subject to using to further improve the recovering effect of the recovery system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the process flow of the alumina producing for the prior art recorded in background technique；
Fig. 2 is a kind of knot for the recovery system of energy, moisture and dust in high-temperature flue gas recorded in embodiment one
Structure schematic diagram；
Fig. 3 is a kind of knot for the recovery system of energy, moisture and dust in high-temperature flue gas recorded in embodiment two
Structure schematic diagram；
Fig. 4 be it is a kind of in high-temperature flue gas in the recovery system of energy, moisture and dust primary heater structural representation
Figure；
Fig. 5 be it is a kind of in high-temperature flue gas in the recovery system of energy, moisture and dust evaporator structural schematic diagram；
Fig. 6 is a kind of knot for the recovery system of energy, moisture and dust in high-temperature flue gas recorded in embodiment three
Structure schematic diagram.
Appended drawing reference:
1, deduster；2, blower；3, chimney；41, primary heater；42, A heater；43, B heater；44, C heater；
5, vaporization chamber；6, heat pump；7, mixing wastewater with air room；8, hot-tub；81, reservoir；82, spillway basin；9, water cooling pond；10, negative pressure
Pipeline；111, the first steam pipe；112 second steam pipes；121, the first condensate water pot；122, the second condensate water pot；131, it feeds
Pipe；132, discharge nozzle；14, cooling tower；15, partition；161, A evaporator；162, B evaporator；163, C evaporator；164, D evaporates
Device；171, the first punishment in advance pumps；172, the second punishment in advance pumps；18, collecting pit；19, heat exchanger；20, air inlet；21, air outlet；22,
Water inlet；23, water outlet；24, discharge of wastewater mouth；25, steam inlet；26, steam (vapor) outlet；27, liquid outlet；28, liquid return hole；
29, circulating pump；30, discharge outlet；31, flash vessel；32, vacuum pump.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment one:
It is as shown in Figure 2:
A kind of recovery system for energy, moisture and dust in high-temperature flue gas, including deduster 1, blower 2, chimney 3,
Vaporising device, water cooling plant and the first steam pipe 111；
Vaporising device includes primary heater 41 and vaporization chamber 5, and the liquid outlet 27 of vaporization chamber 5 passes through heat pump 6 and main heating
The water inlet 22 of device 41 is connected to, and the water outlet 23 of primary heater 41 is connected to the liquid return hole 28 of vaporization chamber 5；
The outlet air end of deduster 1 passes sequentially through blower 2 and primary heater 41 and is connected to 3 air intake of chimney；
Water cooling plant includes mixing wastewater with air room 7, hot-tub 8 and water cooling pond 9, the water outlet of water cooling pond 9 by water supply pump with
Mixing wastewater with air room 7 is connected to, which is greater than 10m at a distance from ground, is provided at the water outlet of mixing wastewater with air room 7
Negative pressure line 10, the water outlet of negative pressure line 10 extend in hot-tub 8, and the water outlet of hot-tub 8 is connected to water cooling pond 9；
Vaporization chamber 5 is connected to by the first steam pipe 111 with mixing wastewater with air room 7.
In a kind of recovery system of above structure, mixing wastewater with air room 7 is connected in hot-tub 8 by negative pressure line 10, heat
The water outlet of water immersion negative pressure line 10 in pond 8, at this point, staff can star water supply pump, water supply pump will will be cold
Water in pond 9 is pumped into mixing wastewater with air room 7, and is flow in hot-tub 8 by negative pressure line 10, during being somebody's turn to do, mixing wastewater with air room 7
With the water column negative pressure that will generate 7.2~10.1m inside vaporization chamber 5, become the boiling point of water in mixing wastewater with air room 7 and vaporization chamber 5
It is 56~60 DEG C, 65~165 DEG C in flue gas of heat can be effectively absorbed using the solution in the vaporization chamber 5 as cold source.
Concrete operations are as follows:
Vaporizing raw liquor can be fitted into vaporization chamber 5 by staff, can be defeated by vaporizing raw liquor by the rotation of heat pump 6
It send into primary heater 41, vaporizing raw liquor is inhaled heat a large amount of in flue gas by way of heat exchange in primary heater 41
It receives, increases the temperature of vaporizing raw liquor, and generate a large amount of vapor, the vapor and remaining vaporizing raw liquor pass through vaporization chamber
5 liquid return hole 28 flows back in vaporization chamber 5；Due to being negative pressure state in vaporization chamber 5, make in the vaporizing raw liquor more than 56~60 DEG C
Moisture continues to flash to vapor, and is flow in mixing wastewater with air room 7 by the first steam pipe 111；
At this point, the water in water cooling pond 9 can be also pumped into mixing wastewater with air room 7 by water supply pump, and when the water in water cooling pond 9 enters
The heat in the vapor of the outflow of vaporization chamber 5 will be absorbed in mixing wastewater with air room 7, reduced the temperature of vapor, be condensed into liquid
State water, and flow in hot-tub 8 by negative pressure line 10, to maintain the state of negative pressure in mixing wastewater with air room 7 and vaporization chamber 5, weight
The multiple above process, makes the recyclable device just can be by a large amount of heat recovery and utilization in flue gas.
Preferably, it is additionally provided with exhaust pipe on above-mentioned mixing wastewater with air room 7, air water can be mixed by being provided on the exhaust pipe
The vacuum pump for closing the gas extraction in room 7, makes always to be in a state of negative pressure in the mixing wastewater with air room 7.
Optimization, above-mentioned primary heater 41 includes heating chamber and heating pipeline, which is arranged in heating chamber,
And the water outlet of above-mentioned heat pump 6 is connected to the water inlet end of heating pipeline, heats the water outlet of pipeline and go back to liquid of vaporization chamber 5
Mouth 28 is connected to, and the outlet air end of blower 2 is connected to by heating chamber with chimney 3；
During the work time, blower 2 can pump flue gas into heating chamber and the steaming in heating pipeline the recovery system
It sends out stoste and carries out heat exchange, and during flue gas and vaporizing raw liquor carry out heat exchange, the temperature meeting of the vapor in flue gas
It reduces, makes the vapor in flue gas that can condense into liquid water in heating chamber, can be inhaled during the vapor condensation in flue gas
Aluminum oxide dust in attached flue gas, to achieve the effect that purifying smoke.
Optimization, vaporising device further includes the first condensate water pot 121, which is connected to heating chamber；Cigarette
After vapor in gas condenses into liquid water in heating chamber, a large amount of aluminum oxide dust is contained in the liquid water, it is cold by this
Condensate tank can realize the recycling of liquid water, discharge, be directly discharged to greatly to avoid by the liquid water containing aluminum oxide dust
The case where pollution of environment is caused in gas generation.
Optimization, it is provided with feed pipe 131 and discharge nozzle 132 on above-mentioned vaporization chamber 5, the feed pipe 131 and discharge nozzle
132 are connected to vaporization chamber 5；During the work time, feed pipe 131 and discharge nozzle 132 are in closed state to the recovery system,
When staff needs to add vaporizing raw liquor into vaporization chamber 5, the feed inlet of feed pipe 131 can be opened, evaporation is former
Liquid is added in vaporization chamber 5 by feed pipe 131；
After the moisture evaporation of the vaporizing raw liquor in vaporization chamber 5, staff can open discharge nozzle 132, after making concentration
Vaporizing raw liquor can be discharged by discharge nozzle 132, to make the recyclable device, it is more convenient to use.
Preferably, it is provided with discharging pump at discharge nozzle 132, which can accelerate the vaporizing raw liquor in vaporization chamber 5
Discharge, makes the more efficient of the recycling of the vaporizing raw liquor in vaporization chamber 5.
Optimization, above-mentioned water cooling plant further includes cooling tower 14, and the water outlet of hot-tub 8 passes through heat-exchanger pump and cooling tower
14 connections, the water outlet of cooling tower 14 is connected to water cooling pond 9；The cooling tower 14 can increase the contact area of water and air, from
And accelerate the cooling velocity of the water in hot-tub 8, improve the cooling effect of the water cooling plant.
Preferably, cooling fin is provided on the lateral wall of cooling tower 14.
It is furthermore preferred that being provided with air cooling equipment at the water outlet of the cooling tower 14；The setting of the cooling fin and air cooling equipment
The cooling effect of the cooling tower can further be improved.
Optimization, it is provided with partition 15 in above-mentioned hot-tub 8, which can divide hot-tub 8 for reservoir 81
It is located in reservoir 81 with the water outlet of spillway basin 82, above-mentioned negative pressure line 10, and the height of partition 15 is higher than negative pressure line
The height of 10 water outlets；
During the work time, the water in the reservoir 81 submerges the water outlet of negative pressure line 10 always, makes mixing wastewater with air room 7
Always it is in sealing state, to preferably maintain the negative pressure state in mixing wastewater with air room 7 and vaporization chamber 5, makes the recovery system
It being capable of a large amount of heat in recovered flue gas.
When the vapor generated in vaporization chamber 5 is flow in mixing wastewater with air room 7, which will aspirate with water cooling pond 9
Water mixing into mixing wastewater with air room 7, and flow in reservoir 81 by negative pressure line 10, increase the height of the water in reservoir 81
Add, and when the height of the water in reservoir 81 is more than 15 height of partition, the water in reservoir 81 will be by flowing above partition 15
Into spillway basin 82；The water outlet of the spillway basin 82 is connected to by heat-exchanger pump with cooling tower 14, and heat-exchanger pump can be by spillway basin 82
Interior water is pumped into cooling tower 14, and the temperature of the water in hot-tub 8 is reduced.
Embodiment two:
As shown in Fig. 3, Fig. 4 and Fig. 5:
As advanced optimizing for embodiment one, which further includes evaporator and secondary heater；Wherein,
Evaporator includes the first heating room and the first vaporization chamber, the first heating room company of above-mentioned vaporization chamber 5 and evaporator
Logical, the first vaporization chamber of evaporator is connected to mixing wastewater with air room；The complete phase of structure of the structure of secondary heater and primary heater 41
Together, primary heater 41 is connected to by secondary heater with chimney 3.
Specifically, above-mentioned secondary heater includes A heater 42, B heater 43 and C heater 44, (referring specifically to Fig. 4)
The outlet air end of above-mentioned blower 2 is connected to the air inlet 20 of primary heater 41, the air outlet 21 and A heater 42 of primary heater 41
Air inlet 20 be connected to, the air outlet 21 of A heater 42 is connected to the air inlet 20 of B heater 43, the air outlet of B heater 43
21 are connected to the air inlet 20 of C heater 44, and the air outlet 21 of C heater 44 is connected to the air intake of chimney 3；
It is provided with discharge of wastewater mouth 24 on A heater 42, B heater 43 and C heater 44, the discharge of wastewater mouth 24 is equal
It is connected to the first above-mentioned condensate water pot 121；
First heating interior of evaporator is provided with heating tube bundle, and the both ends of heating tube bundle connect with the first vaporization chamber
It is logical, it is provided with discharge outlet 30 on the first heating room, the second condensate water pot 122 is provided at discharge outlet 30.
Optimization, evaporator includes A evaporator 161, B evaporator 162 and C evaporator 163, and (referring specifically to Fig. 5) is above-mentioned
Vaporization chamber 5 be connected to by the first steam inlet 25 for heating room of the first steam pipe 111 and A evaporator 161, A evaporator 161
The first vaporization chamber the steam inlet 25 that passes through the first steam pipe 111 and the first heating room of B evaporator 162 of steam (vapor) outlet 26
Connection；The liquid outlet 27 of first vaporization chamber of A evaporator 161 is connected to by heat pump 6 with the water inlet 22 of A heater 42, and A adds
The liquid return hole 28 of first vaporization chamber of the water outlet 23 and A evaporator 161 of hot device 42 is connected to；
The connection of B evaporator 162 and A evaporator 161 and A evaporator 161 are identical as the connection type of vaporization chamber 5, and B steams
Connection and the A evaporator 161 for sending out device 162 and B heater 43 are identical as the connection type of A heater 42；C evaporator 163 and B steam
Connection and the B evaporator 162 for sending out device 162 are identical as the connection of A evaporator 161, and the connection of C evaporator 163 and C heater 44
And B evaporator 162 is identical as the connection of B heater 43.
Optimization, circulating pump 29 is provided on A evaporator 161, B evaporator 162 and C evaporator 163；Wherein,
The bottom of first vaporization chamber of the water inlet end and A evaporator 161 of the circulating pump 29 on A evaporator 161 is connected to, circulation
The water outlet of pump 29 is connected to the top of the first vaporization chamber of A evaporator 161；Circulation on B evaporator 162 and C evaporator 163
Pump 29 is identical with the connection type of the circulating pump 29 on A evaporator 161 and working method；
At work, the vaporizing raw liquor in vaporization chamber 5 can be drawn into primary heater 41 recovery system by heat pump 6,
Vaporizing raw liquor carries out heat exchange with the flue gas of high temperature in primary heater 41, increases the temperature of vaporizing raw liquor and boils, and evaporates
Moisture in stoste can evaporate to form vapor, which can flow to the first of A evaporator 161 by the first steam pipe 111
It heats in room；
At this point, the circulating pump 29 on A evaporator 161 can aspirate the vaporizing raw liquor in the first vaporization chamber of A evaporator 161
To the top of the first vaporization chamber, and it is flow to by heating tube bundle the bottom of the first vaporization chamber of A evaporator 161, and work as vaporizing raw liquor
When by heating tube bundle, which can absorb the heat of vapor in the first heating room of A evaporator 161, make to evaporate
The temperature of stoste increases, and the temperature of vapor will reduce in the first of A evaporator 161 the heating room, and condense into liquid water,
It is flow in the second condensate water pot 122 by discharge outlet 30；
Vaporizing raw liquor in first vaporization chamber of A evaporator 161 can be heated pump 6 and be pumped in A heater 42, make to evaporate
Stoste absorbs remaining partial heat in flue gas in A heater 42, and the moisture in vaporizing raw liquor can absorb in A heater 42
Heat of vaporization in flue gas is at vapor, which can enter in the first vaporization chamber of A evaporator 161, and by A evaporator
161 the first vaporization chamber enters in the first heating room of B evaporator 162；
And when flue gas passes through A heater 42, the vaporizing raw liquor in vapor and A heater 42 in flue gas carries out hot friendship
After changing, the temperature of the vapor in flue gas can be reduced, and condense into liquid water, and can adsorb in flue gas during condensation
Aluminum oxide dust, the liquid water containing aluminum oxide dust can be flow in the first condensate water pot 121 by discharge of wastewater mouth 24, to complete
The recycling of vapor in flue gas；
Above-mentioned B heater 43 and C heater 44 is identical as the working method of primary heater 41 and A heater 42,
And B evaporator 162 and C evaporator 163 are then identical as the working method of A evaporator 161, so repeat the above-mentioned course of work, make
The recovery system can complete the recycling of vapor and dust in the absorption of amount of heat and flue gas in flue gas.
Optimization, vaporization chamber 5 is connected to the first vaporization chamber in A evaporator 161 by the first punishment in advance pump 171, A evaporator
The first vaporization chamber in 161 is connected to by the first punishment in advance pump 171 with the first vaporization chamber in B evaporator 162, in B evaporator 162
The first vaporization chamber 171 be connected to the first vaporization chamber in C evaporator 163 by the first punishment in advance pump, the first punishment in advance pumps 171 and sets
Setting enables vaporizing raw liquor to flow in all evaporators from vaporization chamber 5, so as to there be a certain amount of steaming in evaporator always
Send out stoste.
Optimization, which further includes collecting pit 18, the first condensate water pot 121 on above-mentioned all secondary heaters
Water outlet be connected to collecting pit 18, the setting of the collecting pit 18 makes the collection enhanced convenience of vapor in flue gas.
Embodiment three:
It is as shown in Figure 6:
As advanced optimizing for embodiment two, which further includes D evaporator 164 and multiple groups flash vessel 31；
Wherein, the structure of the D evaporator 164 is identical as above-mentioned evaporation structure, the first heating of the D evaporator 164
The steam inlet 25 of room is connect with the steam pipework of boiler room, is the steaming in D evaporator 164 using the water vapour that boiler room generates
Hair stoste is heated, and the steam that boiler room generates condenses into liquid water in the first heating interior of D evaporator 164, and is steamed by D
The discharge outlet 30 of hair device 164 is flow in the second condensate water pot 122, which is connected to the oxygen-eliminating device of boiler room,
To achieve the effect that the heat recycling of boiler room vapor；
First vaporization chamber of the D evaporator 164 is connected to flash vessel 31, and the first vaporization chamber of D evaporator 164 passes through the
One steam pipe 111 is connected to the first heating room of above-mentioned A evaporator 161, makes the water that vaporizing raw liquor generates in D evaporator 164
Steam can enter the first heating room in A evaporator 161 by the first steam pipe 111, and be the evaporation in A evaporator 161
Stoste is heated；
Above-mentioned multiple groups flash vessel 31 is sequentially communicated, and the second steam pipe 112 is provided on flash vessel 31, the flash vessel 31
It is connected to by the second steam pipe 112 with the first vaporization chamber of A evaporator 161, leads to the vapor generated in flash vessel 31
It crosses in the first heating room that the second steam pipe 112 enters in A evaporator 161, and is carried out for the vaporizing raw liquor in A evaporator 161
Heating, and so on, the second steam pipe 112 on second flash vessel 31 is connected to the first vaporization chamber of B evaporator 162, the
The second steam pipe 112 on three flash vessels 31 is connected to the first vaporization chamber of C evaporator 163, specifically can be according to using
Situation and the quantity of evaporator set the connection relationship of second steam pipe 112 and evaporator.
Optimization, the first vaporization chamber that the second punishment in advance pump 172, A evaporator 161 is provided on above-mentioned A evaporator 161 is logical
It crosses the second punishment in advance pump 172 to be connected to the first vaporization chamber of D evaporator 164, D evaporator 164 is completed by second punishment in advance pump 172
Vaporizing raw liquor addition.
In addition, the connection type of recovery system and embodiment one in the present embodiment and the recovery system in embodiment two
Identical, just it is no longer repeated herein.
The recycling of the high-temperature flue gas such as the recovery system can be used for roasting, sintering process, boiler and lime ablating work procedure, makes high temperature
The available utilization of heat of vapor in thermal energy and flue gas in flue gas, and in flue gas dust and vapor carry out
Recycling, avoids polluting the environment.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of recovery system for energy, moisture and dust in high-temperature flue gas, including deduster (1), blower (2) and chimney
(3), it is characterised in that: further include vaporising device, water cooling plant and steam pipe (111)；
The vaporising device includes primary heater (41) and vaporization chamber (5), and the liquid outlet (27) of the vaporization chamber (5) passes through heating
Pump (6) is connected to the water inlet (22) of the primary heater (41), the water outlet (23) of the primary heater (41) and the steaming
Send out liquid return hole (28) connection of room (5)；
The outlet air end of the deduster (1) pass sequentially through the blower (2) and the primary heater (41) and the chimney (3) into
The connection of wind end；
The water cooling plant includes mixing wastewater with air room (7), hot-tub (8) and water cooling pond (9), the water outlet of the water cooling pond (9)
It is connected to by water supply pump with the mixing wastewater with air room (7), is provided with negative pressure line at the water outlet of the mixing wastewater with air room (7)
(10), the water outlet of the negative pressure line (10) extends in the hot-tub (8), the water outlet of the hot-tub (8) and institute
State water cooling pond (9) connection；
The vaporization chamber (5) is connected to by the steam pipe (111) with the mixing wastewater with air room (7).
2. recovery system according to claim 1, it is characterised in that: the primary heater (41) includes heating chamber and setting
The water inlet end of heating pipeline inside the heating chamber, the water outlet of the heat pump (6) and the heating pipeline connects
Logical, the water outlet of the heating pipeline is connected to the liquid return hole (28) of the vaporization chamber (5), and the blower (2) is added by described
Hot chamber is connected to the chimney (3).
3. recovery system according to claim 2, it is characterised in that: the vaporising device further includes the first condensate water pot
(121), the heating chamber is connected to the water inlet end of first condensate water pot (121).
4. recovery system according to claim 3, it is characterised in that: be provided with feed pipe (131) on the vaporization chamber (5)
With discharge nozzle (132), the feed pipe (131) and the discharge nozzle (132) are connected to the vaporization chamber (5).
5. recovery system according to any one of claim 1 to 4, it is characterised in that: the water cooling plant further includes cold
But the water outlet of tower (14), the hot-tub (8) is connected to by heat-exchanger pump with the water inlet end of the cooling tower (14), the cooling
The water outlet of tower (14) is connected to the water cooling pond (9).
6. recovery system according to claim 5, it is characterised in that: be provided with partition (15), institute in the hot-tub (8)
It states partition (15) and the hot-tub (8) is divided into reservoir (81) and spillway basin (82), the water outlet of the negative pressure line (10)
(23) it is located in the reservoir (81), and the height of the partition (15) is higher than the height of the water outlet of the negative pressure line (10)
Degree, the water outlet of the spillway basin (82) is connected to the water inlet end of the cooling tower (14).
7. recovery system according to any one of claim 1 to 4, it is characterised in that: further include evaporator and secondary heating
Device, the primary heater (41) are connected to by the secondary heater with the chimney (3), and the evaporator includes the first vaporization chamber
With the first heating room, the vaporization chamber (5) is connected to by steam pipe (111) with the first heating room of the evaporator, the steaming
The first vaporization chamber (5) of hair device is connected to by steam pipe (111) with the mixing wastewater with air room (7), and the evaporator is by adding
Heat pump (6) is connected to the secondary heater.
8. recovery system according to claim 7, it is characterised in that: first heating is provided with discharge outlet on room
(30), the second condensate water pot (122) are provided at the discharge outlet (30).
9. recovery system according to claim 8, it is characterised in that: it further include flash vessel (31) and D evaporator (164),
The structure of the D evaporator (164) is identical as the structure of the evaporator, the first vaporization chamber difference of the D evaporator (164)
Room is heated with the first of the evaporator and the flash vessel (31) is connected to, and the flash vessel (31) passes through the second steam pipe
(112) it is connected to the first heating room of the evaporator.
10. recovery system according to claim 9, it is characterised in that: further include the second punishment in advance pump (172), the evaporation
First vaporization chamber of device is connected to by second punishment in advance pump (172) with the first vaporization chamber of the D evaporator (164).
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| CN201910686792.5A CN110280032A (en) | 2019-07-29 | 2019-07-29 | A kind of recovery system for energy, moisture and dust in high-temperature flue gas |
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| CN201910686792.5A CN110280032A (en) | 2019-07-29 | 2019-07-29 | A kind of recovery system for energy, moisture and dust in high-temperature flue gas |
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