CN203507740U - Cooling and desulfurizing comprehensive treatment device of high-temperature and high-humidity flue gas - Google Patents
Cooling and desulfurizing comprehensive treatment device of high-temperature and high-humidity flue gas Download PDFInfo
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Abstract
The utility model discloses a cooling and desulfurizing comprehensive treatment device of high-temperature and high-humidity flue gas. The cooling and desulfurizing comprehensive treatment device comprises a heat exchanger, an inertial separator, a cooling and dust-removing flue, a steam-water separator and a wet-type desulfurizing tower, wherein the heat exchanger is connected with an outlet of a high-temperature flue; the inertial separator is connected with a hot-flow outlet of the heat exchanger; the cooling and dust-removing flue is connected with an outlet of the inertial separator, and is obliquely arranged, and the inlet end of the cooling and dust-removing flue is positioned under the outlet end; the cooling and dust-removing flue is internally provided with a plurality of layers of spraying devices; the steam-water separator is connected with an outlet of the cooling and dust-removing flue; the wet-type desulfurizing tower is connected with an outlet of the steam-water separator; and a flue-gas outlet of the wet-type desulfurizing tower is connected to a cold-flow inlet of the heat exchanger. The cooling and desulfurizing comprehensive treatment device disclosed by the utility model has the advantages that for the characteristics of high temperature of the high-temperature and high-humidity flue gas and low temperature of purified flue gas, a mode with combination of the heat exchanger and direct cooling is adopted to carry out cooling and desulfurizing comprehensive treatment on the high-temperature and high-humidity flue gas, and the temperature of flue gas at a wet-type desulfurizing inlet is controlled to 80-100 DEG C, so that higher separating efficiency is guaranteed; and the equipment is simple and the cost is low.
Description
Technical field
The utility model relates to hot and humid flue gas cool-down desulfur technology field, is specifically related to a kind of hot and humid flue gas cool-down desulfurization Integrated Processing Unit and method.
Background technology
The industries such as metal casting, smelting, waste incineration are generally understood a large amount of hot and humid flue gas of output in process of production, if directly carry out dedusting, sulfur dioxide removal processing, not only the removal efficiency of sulfur dioxide is low, and outlet flue gas with water situation is serious, water condenses in flue, causes boiler flue corrosion, fouling.For eliminating these problems, hot and humid flue gas needs first to lower the temperature before wet desulphurization, dehumidification treatments.In addition, often temperature is lower for the flue gas after wet process of FGD purifies, and is unfavorable for flue gas negative pressure emission.
Chinese utility model patent document 200720028287.4 discloses a kind of high temperature flue gas comprehensive processing equipment, comprise the heat exchanger being connected with high temp. flue, the inertial dust separator being connected with the outlet flue of described heat exchanger, the wet scrubber being connected by connecting pipe with the outlet flue of described inertial dust separator, the moisture separator being connected with the gas outlet of described wet scrubber; In described connecting pipe, be provided with one group of atomizing sprayer, in described wet scrubber, be provided with filter course, three groups of atomizing sprayers, one group of cleaning spraying device and water treatment plant.Connecting pipe and wet scrubber bottom are provided with altogether 3 place's atomizing sprayers and spray treatment fluid in flue gases, and wet scrubber top is provided with cleaning spraying device and sprays water purification downwards.This equipment can carry out desulfurization and dedusting integrated treatment to high-temperature dust-containing flue gas by lower economic input and operating cost, but its complex structure, desulfuration efficiency is not high, and spray treatment fluid does not process, and produces secondary pollution.
Chinese invention patent document 200910012243.6 discloses a kind of quenching and tempering device for cooling high-temperature fume, comprise two-fluid electric apparatus control apparatus, the water, the air pipe that between high-temperature flue gas entry and outlet, arrange, the pressure of water pump, air pump and flow variable ratio frequency changer regulate, control 120～150 ℃ of exit gas temperatures, this invention requires low to cooling water quality, atomizing effect is good, but cooling-down effect is not good, and outlet flue gas is carried water smoke secretly.
Utility model content
The utility model provides a kind of hot and humid flue gas cool-down desulfurization Integrated Processing Unit, the feature such as high and purification smoke temperature is low for hot and humid flue-gas temperature, the mode that adopts heat exchanger and direct-cooled cooling to combine is carried out hot and humid flue gas cool-down desulfurization integrated treatment, control wet desulphurization entrance flue gas temperature at 80～100 ℃, guarantee higher disengaging efficiency, and equipment is simple, cost is low.
A hot and humid flue gas cool-down desulfurization Integrated Processing Unit, comprising:
The heat exchanger being connected with high-temperature flue outlet;
The inertia separator being connected with the hot-fluid outlet of heat exchanger;
The cooling dust-removing flue being connected with the outlet of inertia separator, this cooling dust-removing flue is obliquely installed, and arrival end is positioned at port of export below, and is provided with some layers of spray equipment in this cooling dust-removing flue;
The steam-water separator being connected with the outlet of cooling dust-removing flue;
The wet type desulfurizing tower being connected with the outlet of steam-water separator, the exhanst gas outlet of this wet type desulfurizing tower is connected to the cold flow entrance of described heat exchanger.
Hot and humid flue gas contains a large amount of heat energy, if directly carry out wet process of FGD, constant due to desulphurization system gas-liquid contact space, time, hot and humid flue gas cool-down is slow, causes Gas-Liquid Absorption temperature higher, and desulfuration efficiency reduces.In addition, often temperature is lower for the flue gas after wet process of FGD purifies, and is unfavorable for the lifting discharge of flue gas.Described first-class heat exchanger is also provided with the cold fluid port of export being connected with chimney.The clean flue gas of hot and humid flue gas and low temperature completes heat transmission in first-class heat exchanger.The clean flue-gas temperature of low temperature raises, from smoke stack emission.Hot and humid flue-gas temperature reduces.
According to heat formula Q=L
g,N/ 22.4 (C
p, m1t
g1-C
p, m2t
g2),
L in formula
g,N---exhaust gas volumn, m
3/ h;
C
p, m1, C
p, m2---flue gas is 0～t
g1with 0～t
g2time molar average level pressure thermal capacitance, kJ/ (kmol ℃);
T
g1, t
g2---the cooling front and back of flue gas temperature, ℃.
By heat balance, find, the heat that after the purification of equivalent, flue gas intensification absorbs is less than hot and humid flue gas and drops to the heat that target temperature discharges.Show after first-class heat exchanger, hot flue gas still needs further cooling just can reach target temperature.
In the flue of described band spray, be provided with some layers of sprinkling equipment, the flue of described band spray tilts, and the position of its smoke inlet is lower than the position of its outlet flue.In order to improve cooling-down effect, hot and humid flue gas and shower water counter current contacting.Shower water and flue gas condensed bear water along the flue tilting and flow into inertia separator conical lower portion, discharge.
For flue-gas temperature before further guaranteeing wet process of FGD is within the scope of design temperature, the flue end of described band spray connects steam-water separator place and is furnished with thermocouple, and flue-gas temperature is monitored.
The low temperature and high relative humidity flue gas that carries large quantity of moisture enters steam-water separator, through effects such as the centrifugation in steam-water separator, collisions, moisture in flue gas is separated, and saturated dry flue gas enters in wet type desulfurizing tower through the insulation flue of a section shorter, carries out Gas-Liquid Absorption.Flue-gas temperature is now lower, and water capacity reduces, and during gas-liquid contact desulfurization, gas-liquid mass transfer temperature is lower, and desulfuration efficiency is higher.In addition, hot and humid flue gas has passed through the effect of carbonated drink separation, spraying cooling and the steam-water separator of inertia separator, and the dust impurity in flue gas, sulfur dioxide etc. have also been realized partly and having been removed, and are conducive to the raising of SO 2 from fume clearance.
Described inertia separator bottom becomes centrum shape, and isolated water and dust can collect herein, and sprinkling equipment spray and lower water also collects in this, discharge in the lump in the flue of band spray.The water of discharging can recycle as temperature lowering water again through simple filtration.
As preferably, also comprise a PLC controller and be arranged on the temperature sensor in described inertia separator, the input of described PLC controller connects temperature sensor, and the output of described PLC controller connects described spray equipment.
Further preferably, described temperature sensor is thermocouple.
Hot and humid flue gas enters inertia separator after first-class heat exchanger, in described inertia separator, is furnished with thermocouple, described thermocouple connects PLC switch board, PLC switch board receives the signal of telecommunication from thermocouple, through PLC program heat Calculation, again the water spray signal of telecommunication is transported to the spray equipment of cooling dust-removing flue, regulation and control water spray, with the target temperature of the high-humidity gas fume cooling that reaches a high temperature.
As preferably, described cooling dust-removing flue entrance top and be positioned at described inertial dust separator and be provided with a baffle plate.
Further preferably, described baffle plate is obliquely installed, with vertical angle be 40 °～50 °, upper end is fixed on the inwall of described inertia separator, extend to the center of described inertia separator lower end, 1.3～1.5 times of the inlet diameter that the length of described baffle plate is cooling dust-removing flue.
The effect of described inertia separator is that the little water droplet carried secretly in the hot and humid flue gas making after heat exchange, dust etc. separate, wherein the part SO in flue gas
3also can from flue gas, separate, after raising heat exchange, the acid dew point of flue gas, reduces its corrosion and scaling to follow-up equipment.In order to improve the removal efficiency in inertia separator such as little water droplet, dust, in described inertia separator, the upper edge of exhanst gas outlet is provided with a plate washer; Described baffle plate is inside, downward-sloping, and horizontal by 40-50 ° of angle, baffle plate prevents that flue gas from flowing directly into next link.
Described temperature sensor is positioned at the opposite of the exhanst gas outlet of inertia separator, the top of baffle plate, and the below of heat exchanger exit, apart from heat exchanger exit 30-50cm.The temperature providing from temperature sensor is determined the cooling extent of direct-cooled cooling.
As preferably, in described cooling dust-removing flue, be provided with 2～5 layers of spray equipment.
Further preferably, described in described spray equipment, spray equipment comprises that to be positioned at cooling dust-removing flue outer and move towards consistent water spray house steward, interval with cooling dust-removing flue and be communicated with on water spray house steward and extend into the water spray arm of cooling dust-removing flue and be arranged on the atomizer on water spray arm, on water spray house steward and the arm of respectively spraying water, is equipped with control valve.
More preferably, be also provided with the shower nozzle motor and water pump being connected with atomizer, the spout of described atomizer is installed in parallel on described water spray arm down and with cooling dust-removing flue.
More preferably, described atomizer is solid conical, is movably arranged on described water spray arm.
Described shower nozzle motor and water pump provides pressure for atomizer, the installation parallel with flue of described atomizer, and spraying cooling water contacts with flue gas adverse current, and is solid conical, and angle is adjustable.
What the utility model adopted is the combined spray structure of atomizer and shower nozzle motor and water pump, the atomizing effect of cooling water is better, cooling-down effect is better, can determine the spray number of plies of opening according to the best injection flow rate of the combination of water spray and atomizer and shower nozzle motor and water pump, compare with similar design, in the situation that identical cooling-down effect has been saved water resource and energy consumption.
As preferably, described cooling dust-removing flue is obliquely installed, and arrival end is positioned at port of export below.After spraying cooling water completes cooling like this, along flue, flow into inertia separator.
As preferably, the smoke inlet place of the exit of described cooling dust-removing flue or steam-water separator is provided with second temperature sensor, intuitively reacts the hot and humid flue gas result of finally lowering the temperature, on-line monitoring cooling system operation conditions.
As preferably, between the smoke inlet of described wet type desulfurizing tower and the outlet of cooling dust-removing flue, be also provided with one section of insulation flue.High-temperature flue gas enters wet type desulfurizing tower through twice cooling by insulation flue, carries out flue gas desulfurization.
As preferably, also comprise the chimney being connected with the cold flow outlet of described heat exchanger.
The clean flue gas of hot and humid flue gas and low temperature completes heat transmission in first-class heat exchanger.The clean flue-gas temperature of low temperature raises, from smoke stack emission.Hot and humid flue-gas temperature reduces.
As preferably, described wet type desulfurizing tower comprises tower body; Be located at successively 3～5 layers of demister in tower body, 2～3 layers of spray thrower, uptake zone and tower reactor from top to bottom; The smoke inlet that is communicated with uptake zone; And the exhanst gas outlet that is positioned at tower top.
More preferably, the uptake zone height of described wet type desulfurizing tower is 4～6m.In wet type desulfurizing tower, gas liquid reaction temperature is lower, and corresponding Gas-Liquid Absorption reaction rate improves.Reduce uptake zone height, cost-saving.
More preferably, the tower diameter D of the tower reactor of described wet type desulfurizing tower
1compared with uptake zone tower diameter D
2greatly, D
1=1.1～1.5D
2.Because Gas-Liquid Absorption reaction temperature is lower, cause tower reactor slurry temperature lower, the a large amount of calcium sulfite oxidation reaction rates that form after sulfur dioxide absorption slow down, increase tower reactor volume, improve desulfurization slurry in the time of staying of tower reactor, the desulfurizing agent in slurries, calcium sulfite and calcium sulphate dihydrate are fully reacted.
When the cooling pre-processing device in the application and the desulfurizing tower of this structure are used in combination, treatment effect is best.
It is acid that the cooling water that the utility model inertia separator and steam-water separator are discharged and condensed water are, and contain a certain amount of dust.As preferentially, cooling water and condensed water can be collected, after filtration etc. after simple process, can be used as pulp-water, flushing cinder water etc. reuse, non-secondary pollution.
The utility model features such as high and purification smoke temperature is low for hot and humid flue-gas temperature, adopt heat exchanger and direct-cooled cooling combines again mode to carry out hot and humid flue gas cool-down desulfurization integrated treatment.This device takes full advantage of heat exchanger, flue etc., can significantly reduce flue-gas temperature, water capacity, again can lifting purification smoke temperature, be conducive to plume rise discharge, and can also improve wet process of FGD efficiency.
The beneficial effects of the utility model:
(1) the utility model provides a kind of suitable hot and humid flue gas cool-down desulfurization Integrated Processing Unit and method, can control into tower flue gas temperature at 80-100 ℃, and humidity of flue gas reduces, and Gas-Liquid Absorption reaction temperature reduces, and sulfur dioxide removal efficiency improves.
(2) what in heat exchanger of the present utility model, carry out is the heat exchange processing of hot and humid flue gas and the clean flue gas of low temperature, has not only reduced the temperature of hot and humid flue gas, has also improved the temperature of the clean flue gas of low temperature, is conducive to the lifting discharge of clean flue gas.
(3) water that the utility model is discharged from inertia separator, the steam-water separator bottom reuse such as can be used as sizing process water, flushing cinder water processing such as after filtration, non-secondary pollution.
Accompanying drawing explanation
Fig. 1 is process chart of the present utility model.
Fig. 2 is the structural representation of flue gas cool-down dehumidifying part.
Fig. 3 is the structural representation of insulation flue and wet type desulfurizing tower
The specific embodiment
As shown in Figure 2, the cool-down dehumidification part of hot and humid flue gas cool-down desulfurization Integrated Processing Unit, comprises heat exchanger 1, inertia separator 2, cooling dust-removing flue 3, steam-water separator 4, insulation flue 5, wet type desulfurizing tower 6 and PLC controller 7.
Heat exchanger 1 adopts gas formula heat exchanger, and with a hot-fluid entrance 103, a hot-fluid outlet, a cold flow entrance 102 and a cold flow outlet 101, hot-fluid entrance 101 connects high-temperature flues, and hot-fluid outlet connects the smoke inlet of inertia separator 2.
The bottom of inertia separator 2 is back taper, the bottom of back taper is provided with leakage fluid dram 203 and corresponding valve, be convenient to the discharge of isolated liquid, on a side sidewall of inertia separator 2, with exhanst gas outlet, this exhanst gas outlet connects the arrival end of cooling dust-removing flue 3.
The top that is positioned at exhanst gas outlet in inertia separator 2 arranges a baffle plate 202, this baffle plate 202 is for keeping off water droplet, the dust of flue gas, prevent from directly entering cooling dust-removing flue 3 corrosion flues, baffle plate 202 is obliquely installed, upper edge is fixed on the inwall of inertia separator 2, and a little more than the upper edge of the exhanst gas outlet 204 of inertia separator, lower end is to centroclinal, with vertical angle be 40～50 °, the development length of baffle plate 202 is 1.3～1.5 times of exhanst gas outlet diameter of inertia separator 2.
In inertia separator 2, be also provided with a temperature sensor 201, this temperature sensor 201 is preferably thermocouple, and this thermocouple is the opposite that can be arranged on the exhanst gas outlet 204 of inertia separator, and the top of baffle plate 202, apart from heat exchanger exit 50cm place.Cooling dust-removing flue 3 is obliquely installed, and arrival end is lower than the port of export, and angle of inclination is roughly 20 °-50 °, and the port of export of cooling dust-removing flue 3 connects the smoke inlet 403 of steam-water separator, and the length of cooling dust-removing flue 3 is traditionally arranged to be 1.5m-3m.
The interior some layers of spray equipment 301 that arrange of cooling dust-removing flue 3,2～5 layers of operated by rotary motion, in present embodiment, arrange 3 layers, spray equipment 301 comprises and is positioned at cooling dust-removing flue 3 belows and moves towards consistent water spray house steward with cooling dust-removing flue 3, be equipped with control valve on water spray arm, water spray house steward and the arm of respectively spraying water that is communicated with on water spray house steward and extends into cooling dust-removing flue 3 that keep at a certain distance away.The atomizer that spray equipment 301 also comprises, be atomizer and the combination of shower nozzle motor and water pump, atomizer is movably arranged on water spray arm, installation parallel with flue, spout down, atomizer and be solid conical, 45 ° of angles, spraying cooling water contacts with flue gas adverse current, and shower nozzle motor and water pump provides pressure for atomizer.
Steam-water separator 4 is with a smoke inlet 401, an exhanst gas outlet 402 and a liquid outlet 401, the smoke inlet 401 of steam-water separator and the exhanst gas outlet 402 of steam-water separator are all positioned on the sidewall of steam-water separator 4, the liquid outlet 401 of steam-water separator is positioned at the bottom of steam-water separator 4, at the cooling-down effect for convenient monitoring flue gas, at smoke inlet 401 places of steam-water separator, second temperature sensor 302 is set again, the hot and humid flue gas of the reaction directly perceived result of finally lowering the temperature, on-line monitoring cooling system operation conditions.
The exhanst gas outlet of steam-water separator 4 connects insulation flue 5, and as shown in Figure 3, the outlet of insulation flue 5 connects the smoke inlet of wet type desulfurizing tower 6, and wet type desulfurizing tower 6 adopts conventional wet type desulfurizing tower, preferably, comprises tower body; Be located at successively 3～5 layers of demister in tower body, 2～3 layers of spray thrower, uptake zone and tower reactor from top to bottom; The smoke inlet that is communicated with uptake zone; And the exhanst gas outlet that is positioned at tower top, the tower diameter D of tower reactor
1compared with uptake zone tower diameter D
2greatly, D
1=1.1～1.5D
2, its exhanst gas outlet is connected to the cold flow entrance 102 of heat exchanger 1 by flue, and the cold flow outlet 101 of heat exchanger 1 is connected to chimney by flue.Hot and cold flue gas carries out heat exchange, exports flue gas with water situation after can eliminating high-temperature flue gas desulfurization.
The temperature sensor 201 that the input 701 of PLC controller 7 connects in inertia separator 2, output 702 connects all control valves of spray equipment 301.
Technological process of the present utility model is as follows:
Be illustrated in figure 1 process chart of the present utility model:
(1) hot and humid smoke gas flow, through heat exchanger, carries out heat transmission with the clean flue gas of low temperature from desulfurizing tower in heat exchanger, and flue gas is once lowered the temperature;
(2) through the flue gas inflow inertia separator of taking advantage of a situation of once cooling, in inertia separator, drop and dust that particle diameter is greater than 10 μ m are captured down, and from bottom, discharge;
(3) the hot and humid flue gas through once cooling enters the flue of band spray through inertia separator, carries out reducing temperature twice;
(4) in inertia separator, be furnished with temperature sensor, the temperature value of this temperature sensor is transferred to PLC switch board; PLC switch board output is controlled the unlatching of flue sprinkling equipment;
(5) open flue sprinkling equipment, in flue, spraying cooling water contacts with flue gas adverse current, completes reducing temperature twice;
(6) the hot and humid flue gas that completes reducing temperature twice enters steam-water separator, completes the separated of condensed water and gas in steam-water separator;
(7) flue gas that completes cool-down dehumidification process enters wet type desulfurizing tower, contacts with sprayed slurry, completes sulfur dioxide removal process;
(8) the clean flue gas of low temperature of discharging from wet type desulfurizing tower and hot and humid flue gas heat exchange, from chimney, discharge;
(9) water of discharging from inertia separator, the steam-water separator bottom reuse such as can be used as sizing process water, flushing cinder water processing such as after filtration, non-secondary pollution.
Hot and humid flue gas carries out inertial separation after one-level cooling, remove dust and little water droplet in flue gas, then flue gas is carried out to spraying cooling, after spraying cooling, enter insulation flue, then enter and in wet type desulfurizing tower, carry out wet type desulfurizing, quiet flue gas after desulfurization is sent in heat exchanger high-temperature flue gas is lowered the temperature as cold fluid, is conducive to export the discharge of flue gas after simultaneously clean flue-gas temperature gets a promotion, and reduces smog.
Embodiment 1
The exhaust gas volumn 100000Nm3/h of the hot and humid flue gas of certain metallurgical production line, enters 180 ℃ of left and right of flue-gas temperature of smoke inlet 1, smoke moisture 25% left and right, and sulfur dioxide concentration 2300mg/m3, flue gas chief component composition is RO
215%, O
213%, H
2o25%, N
247%.
During operation, hot and humid flue gas enters inertia separator through heat exchanger, and the flue-gas temperature that in inertia separator, thermocouple detects is 140 ℃ of left and right, and through PLC switch board heat balance, needing the liquid-gas ratio of spray is 0.32L/m
3can make the flue-gas temperature that enters steam-water separator be reduced to 90 ℃, open 2 layers of spray, individual layer spray liquid-gas ratio 0.16L/m
3, spraying cooling water atomizing effect is good, and through the flue reducing temperature twice of band spray, the temperature value that temp probe monitors is 91 ℃ of left and right.
Low Temperature Wet flue gas is after steam-water separator, and saturated dry flue gas enters wet type desulfurizing system through shorter insulation flue, gas liquid reaction temperature 50 C in wet type desulfurizing tower, 50 ℃ of left and right of wet type desulfurizing tower exit gas temperature, sulfur dioxide concentration 100mg/m
3, desulfuration efficiency reaches 95.65%.Low-temperature flue gas after purification flows into the cold fluid end of first-class heat exchanger by pipeline, carry out after heat transmission with hot and humid flue gas, and the cold fluid of first-class heat exchanger exports 85 ℃ of left and right of flue-gas temperature at 101 places.
Embodiment 2
The exhaust gas volumn 480000Nm3/h of the hot and humid flue gas of certain metallurgical production line, enters 170 ℃ of left and right of flue-gas temperature of smoke inlet 1, smoke moisture 30% left and right, and sulfur dioxide concentration 2000mg/m3, flue gas chief component composition is RO
214%, O
213%, H
2o30%, N
243%.
During operation, hot and humid flue gas enters inertia separator through heat exchanger, and the flue-gas temperature that in inertia separator, thermocouple detects is 131 ℃ of left and right, and through PLC switch board heat balance, needing the liquid-gas ratio of spray is 0.25L/m
3can make the flue-gas temperature that enters steam-water separator be reduced to 90 ℃, open 5 layers of spray, individual layer spray liquid-gas ratio 0.05L/m
3, spraying cooling water atomizing effect is good, and through the flue reducing temperature twice of band spray, the temperature value that temp probe monitors is 90 ℃ of left and right.
Low Temperature Wet flue gas is after steam-water separator, and saturated dry flue gas enters wet type desulfurizing system through shorter insulation flue, gas liquid reaction temperature 50 C in wet type desulfurizing tower, 50 ℃ of left and right of wet type desulfurizing tower exit gas temperature, sulfur dioxide concentration 98mg/m
3, desulfuration efficiency reaches 95.1%.Low-temperature flue gas after purification flows into the cold fluid end of first-class heat exchanger by pipeline, carry out after heat transmission with hot and humid flue gas, and the cold fluid of first-class heat exchanger exports 85 ℃ of left and right of flue-gas temperature at 101 places.
Claims (8)
1. a hot and humid flue gas cool-down desulfurization Integrated Processing Unit, is characterized in that, comprising:
The heat exchanger being connected with high-temperature flue outlet;
The inertia separator being connected with the hot-fluid outlet of heat exchanger;
The cooling dust-removing flue being connected with the outlet of inertia separator, this cooling dust-removing flue is obliquely installed, and arrival end is positioned at port of export below, and is provided with some layers of spray equipment in this cooling dust-removing flue;
The steam-water separator being connected with the outlet of cooling dust-removing flue;
The wet type desulfurizing tower being connected with the outlet of steam-water separator, the exhanst gas outlet of this wet type desulfurizing tower is connected to the cold flow entrance of described heat exchanger.
2. hot and humid flue gas cool-down desulfurization Integrated Processing Unit according to claim 1, it is characterized in that, also comprise a PLC controller and be arranged on the temperature sensor in described inertia separator, the input of described PLC controller connects temperature sensor, and the output of described PLC controller connects described spray equipment.
3. hot and humid flue gas cool-down desulfurization Integrated Processing Unit according to claim 2, is characterized in that, described cooling dust-removing flue entrance top and be positioned at described inertial dust separator and be provided with a baffle plate.
4. hot and humid flue gas cool-down desulfurization Integrated Processing Unit according to claim 3, it is characterized in that, described baffle plate is obliquely installed, with vertical angle be 40 °～50 °, upper end is fixed on the inwall of described inertia separator, extend to the center of described inertia separator lower end, 1.3～1.5 times of the inlet diameter that the length of described baffle plate is cooling dust-removing flue.
5. hot and humid flue gas cool-down desulfurization Integrated Processing Unit according to claim 2, is characterized in that, is provided with 2～5 layers of spray equipment in described cooling dust-removing flue.
6. hot and humid flue gas cool-down desulfurization Integrated Processing Unit according to claim 2, it is characterized in that, described spray equipment comprises that to be positioned at cooling dust-removing flue outer and move towards consistent water spray house steward, interval with cooling dust-removing flue and be communicated with on water spray house steward and extend into the water spray arm of cooling dust-removing flue and be arranged on the atomizer on water spray arm, on water spray house steward and the arm of respectively spraying water, is equipped with control valve.
7. hot and humid flue gas cool-down desulfurization Integrated Processing Unit according to claim 2, is characterized in that, between the smoke inlet of described wet type desulfurizing tower and the outlet of cooling dust-removing flue, is also provided with one section of insulation flue.
8. hot and humid flue gas cool-down desulfurization Integrated Processing Unit according to claim 2, is characterized in that, also comprises the chimney being connected with the cold flow outlet of described heat exchanger.
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|---|---|---|---|
| CN201320542675.XU CN203507740U (en) | 2013-09-02 | 2013-09-02 | Cooling and desulfurizing comprehensive treatment device of high-temperature and high-humidity flue gas |
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|---|---|---|---|
| CN201320542675.XU CN203507740U (en) | 2013-09-02 | 2013-09-02 | Cooling and desulfurizing comprehensive treatment device of high-temperature and high-humidity flue gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463910A (en) * | 2013-09-02 | 2013-12-25 | 浙江天蓝环保技术股份有限公司 | Comprehensive treatment device and method for cooling desulfurization of high-temperature and high-humidity flue gas |
| CN105116732A (en) * | 2015-09-01 | 2015-12-02 | 中冶华天工程技术有限公司 | Time-window-enthalpy-value-integral-based smoke cooling control method and system |
| CN105688616A (en) * | 2016-04-08 | 2016-06-22 | 洛阳瑞昌石油化工设备有限公司 | Device for smoke condensation haze-eliminating and white-removing after wet desulphurization and technical method |
-
2013
- 2013-09-02 CN CN201320542675.XU patent/CN203507740U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463910A (en) * | 2013-09-02 | 2013-12-25 | 浙江天蓝环保技术股份有限公司 | Comprehensive treatment device and method for cooling desulfurization of high-temperature and high-humidity flue gas |
| CN105116732A (en) * | 2015-09-01 | 2015-12-02 | 中冶华天工程技术有限公司 | Time-window-enthalpy-value-integral-based smoke cooling control method and system |
| CN105688616A (en) * | 2016-04-08 | 2016-06-22 | 洛阳瑞昌石油化工设备有限公司 | Device for smoke condensation haze-eliminating and white-removing after wet desulphurization and technical method |
| CN105688616B (en) * | 2016-04-08 | 2019-07-16 | 洛阳瑞昌环境工程有限公司 | A kind of condensation of wet-method desulfurized fume takes off white equipment and process except haze |
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