CN110559784A - high-temperature flue gas purification system - Google Patents
high-temperature flue gas purification system Download PDFInfo
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- CN110559784A CN110559784A CN201910957728.6A CN201910957728A CN110559784A CN 110559784 A CN110559784 A CN 110559784A CN 201910957728 A CN201910957728 A CN 201910957728A CN 110559784 A CN110559784 A CN 110559784A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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- 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
- B01D53/14—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 by absorption
- B01D53/1406—Multiple stage absorption
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- 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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a high-temperature flue gas purification system which comprises an induced draft fan, a cooling purifier, a first washing tower, a second washing tower and an adsorption box, wherein the induced draft fan is arranged on the first washing tower; the draught fan is connected with the cooling purifier, the air outlet of the cooling purifier is connected with the first washing tower, the air outlet of the first washing tower is connected with the second washing tower, and the air outlet of the second washing tower is connected with the adsorption box. The invention has simple design principle, compact integral structure and high economic benefit, and can also improve the purification effect of the high-temperature flue gas purification system.
Description
Technical Field
The invention belongs to the technical field of environment-friendly equipment, and particularly relates to a high-temperature flue gas purification system.
Background
Environmental protection is called environmental protection for short. Environmental protection generally refers to the collective name of various actions that human beings take to solve real or potential environmental problems, coordinate the relationship between human beings and the environment, protect the living environment of human beings, and guarantee the sustainable development of the economy and society. The method and means thereof are engineering, administrative, economic, propaganda and education and the like. The environment protection mode is many, including administrative, law, economy, science and technology, civilian spontaneous environmental protection organization and the like, the natural resources are reasonably utilized, the environmental pollution and damage are prevented, the common balanced sustainable development of the natural environment, the human environment and the economic environment is required, the reproduction of useful resources is expanded, and the social development is ensured.
flue gas is a mixture of gas and smoke dust and is the main cause of atmospheric pollution in residential areas. The components of the flue gas are complex, the gas comprises water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides and the like, and the smoke comprises ash, coal particles, oil drops, pyrolysis products and the like of the fuel. Therefore, the pollution of the flue gas to the environment is the composite pollution of various poisons. The harmfulness of smoke to human bodies is related to the size of particles, most of the harmfulness to human bodies is floating dust with the diameter smaller than 10um, and particularly the highest harmfulness is the floating dust with the diameter of 1-2.5 um. The high temperature flue gas has the characteristics of high temperature, dense smoke dust, fine dust particles, sulfur-containing water, combustibility and explosibility, and the like, so the complexity and the particularity in treatment are formed.
High-temperature flue gas discharged in industrial production often has harmful effects on the environment and human health, and purification measures are taken to treat the high-temperature flue gas before the high-temperature flue gas enters the atmosphere, so that the high-temperature flue gas meets the requirements of exhaust emission standards. Common methods for purifying flue gas include: absorption method, adsorption method, condensation method and combustion method. Therefore, a high-temperature flue gas purification system with complete functions and good purification effect is needed, the treatment device is single nowadays, the purification of a plurality of high-temperature flue gases usually cannot reach the expected effect or cannot reach the standard at all, and the environmental protection is not facilitated.
Disclosure of Invention
the invention aims to solve the defects and design a high-temperature flue gas purification system.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
The invention relates to a high-temperature flue gas purification system, which comprises an induced draft fan, a cooling purifier, a first washing tower, a second washing tower and an adsorption tank, wherein the induced draft fan is arranged on the first washing tower; the draught fan is connected with the cooling purifier, the air outlet of the cooling purifier is connected with the first washing tower, the air outlet of the first washing tower is connected with the second washing tower, and the air outlet of the second washing tower is connected with the adsorption box.
Preferably, the cooling purifier comprises a cooling pipe, a cooling sprayer, a dust-liquid separation box, a liquid cooling box, a cold water circulation box, a cooling water pump and a cooling spraying pipe; cooling tube one end be equipped with the cooling air intake, the other end is equipped with cooling air outlet, the top of cooling spray thrower interval setting in the cooling tube, dirt liquid separator box and cooling tube bottom intercommunication, dirt liquid separator box passes through drainage tube and liquid cooling case intercommunication, liquid cooling case passes through overflow weir and cold water circulation case intercommunication, cooling water pump be connected with the cold water circulation case, cooling water pump is connected with the cooling spray thrower through the cooling spray pipe. The cooling purifier passes through most smoke and dust and water separation of dirt liquid separator box in with the cooling water, and through the liquid cooling case deposit the separation smoke and dust once more, the water that comes the cold water circulation case can reach the standard of reuse, can cool off by the reuse water resource, can be favorable to protecting other purifier with high temperature flue gas but not receive the damage of high temperature, and the cooling purifier can also get rid of most smoke and dust in the flue gas simultaneously.
Preferably, the top of the first washing tower is provided with a first washing air outlet, and the lower part of the first washing tower is provided with a first washing air inlet; the bottom of the first washing tower is provided with a first water storage tank, a first washing water pump and a first automatic water replenishing device; the first automatic water replenishing device is connected with the first water storage tank; three first packing layers are arranged in the first washing tower; a first plate type water collector is arranged below the uppermost first packing layer; a plurality of first spiral sprayers are respectively arranged above the first packing layer at the lowest layer and the first packing layer at the middle layer; the first spiral sprayer is connected with a first washing water pump through a first washing spraying pipe, and the first washing water pump is connected with a first water storage tank. The first washing tower collects waste water through the first water storage tank, the waste water is subjected to dust-liquid separation in the first water storage tank, supernatant is pumped to the first spiral sprayer by the first washing water pump for spraying, the cooling water is recycled, a small amount of cooling water is supplemented timely, and the first washing tower is made of PP or 304 stainless steel.
preferably, the top of the second washing tower is provided with a second washing air outlet, and the lower part of the second washing tower is provided with a second washing air inlet; the bottom of the second washing tower is provided with a second water storage tank, a second washing water pump and a second automatic water replenishing device; the second automatic water replenishing device is connected with the second water storage tank; three second packing layers are arranged in the second washing tower; a second plate type water collector is arranged below the uppermost second packing layer; a plurality of second spiral sprayers are respectively arranged above the second packing layer at the lowest layer and the second packing layer at the middle layer; the second spiral sprayer is connected with a second washing water pump through a second washing spraying pipe, and the second washing water pump is connected with a second water storage tank. The second washing tower collects waste water through the second water storage tank, the waste water is subjected to dust-liquid separation in the second water storage tank, supernatant is pumped to the second spiral sprayer by the second washing water pump to be sprayed, the cooling water is recycled, a small amount of cooling water is supplemented timely, and the second washing tower is made of PP or 304 stainless steel.
Preferably, one end of the adsorption box is provided with an adsorption air inlet, and the other end of the adsorption box is provided with an adsorption air outlet; an adsorption packing area is arranged in the adsorption box.
Preferably, the filler in the adsorption filler zone is one of activated carbon, zeolite molecular sieve, activated alumina, limestone, diatomite, silica gel and resin adsorbent or a mixture of the activated carbon, the zeolite molecular sieve, the activated alumina, the limestone, the diatomite, the silica gel and the resin adsorbent in any proportion.
Preferably, the air inlet of the induced draft fan is connected with a first induced draft pipe, and the induced draft fan is connected with the cooling purifier through a second induced draft pipe; the cooling purifier is connected with the first washing tower through a third induced draft pipe; the first washing tower is connected with the second washing tower through a fourth induced draft pipe, and the second washing tower is connected with the adsorption tank through a fifth induced draft pipe; the adsorption box is connected with the chimney through a sixth induced draft tube, and the induced draft tube is used for controlling the air quantity and the air speed of the flue gas; and discharging the purified flue gas to a specified height through a chimney.
Preferably, the bottom of the dust-liquid separation box is provided with a first sewage discharge port, and a ball float valve is arranged in the dust-liquid separation box; the bottom of the liquid cooling box is provided with a second sewage outlet, and the water inlet of the drainage tube is positioned at the upper part of the dust-liquid separation box; the water outlet of the drainage tube is positioned at the lower part of the liquid cooling tank. The first sewage discharge port is used for discharging most of smoke dust, a sewage discharge valve is arranged at the first sewage discharge port for periodic sewage discharge, and the ball float valve is used for controlling the water level in the dust-liquid separation tank; the second sewage draining port is used for draining a small part of smoke dust in the liquid cooling box, and a sewage draining valve is arranged at the second sewage draining port for draining sewage regularly; the drainage tube can ensure that the sewage with less smoke dust in the dust-liquid separation box enters the liquid cooling box.
preferably, the dust-liquid separation tank, the liquid cooling tank and the cold water circulation tank are of an integrated structure, the dust-liquid separation tank, the liquid cooling tank and the cold water circulation tank are isolated by partition plates, the integrated structure is favorable for reducing the size of equipment, and the whole structure is more compact.
Preferably, the first packing layer and the second packing layer are Raschig rings, and the Raschig rings have acid resistance and heat resistance and are low in price.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
1. The invention has simple design principle, compact integral structure and high economic benefit, and can also improve the purification effect of the high-temperature flue gas purification system.
2. The invention is provided with the cooling purifier, cools the high-temperature flue gas, and then enters the subsequent purification system, so that the high temperature can be prevented from damaging the purification system, the service life of the system is prolonged, and the dust in the flue gas can be further removed, thereby achieving the effect of purifying the flue gas.
3. The invention is provided with two identical washing towers, and has multiple purification functions on high-temperature flue gas, so that the flue gas emission reaches the standard.
4. The cooling purifier is arranged in front of the washing tower, so that the treatment difficulty of high-temperature flue gas is reduced, the later washing tower can select a PP material with lower price, and the manufacturing cost of the whole set of purification system is reduced.
5. The invention is provided with the adsorption tower, which has the functions of deodorizing the flue gas and adsorbing tiny particles, thereby further purifying the flue gas, and reaching or even being superior to the emission standard.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the cooling purifier according to the present invention;
FIG. 3 is a schematic view of the structure of a first scrubber in the present invention;
FIG. 4 is a schematic diagram of the structure of a second scrubber according to the invention;
FIG. 5 is a schematic view of the structure of an adsorption column in the present invention.
Description of the labels in the schematic drawings
1-a draught fan; 2-cooling the purifier; 3-a first scrubber; 4-a second scrubber; 5-an adsorption tank; 6-a chimney; 7-a first induced draft pipe; 8-a second induced draft pipe; 9-a third induced draft pipe; 10-a fourth induced draft pipe; 11-a fifth induced draft pipe; 12-a sixth induced draft pipe; 21-a cooling pipe; 22-a cooling shower; 23-dust-liquid separation box; 24-a liquid cooling tank; 25-a cold water circulation tank; 26-a cooling water pump; 27-cooling shower pipes; 28-a drainage tube; 29-a weir; 211-cooling air inlet; 212-cooling air outlet; 231-a first drain outlet; 232-a ball float valve; 241-a second sewage draining outlet; 30-a first window; 31-a first water storage tank; 32-a first wash water pump; 33-a first automatic water replenishing device; 34-a first packing layer; 35-a first plate type water collector; 36-a first spiral shower; 37-a first washing shower; 38-first wash outlet; 39-a first washing air inlet; 40-a second window; 41-a second water storage tank; 42-a second wash water pump; 43-a second automatic water replenishing device; 44-a second packing layer; 45-a second plate type water collector; 46-a second spiral shower; 47-second wash shower; 48-a second washing outlet; 49-a second washing air inlet; 51-an adsorption air inlet; 52-adsorption air outlet; 53-adsorption packing area.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
as shown in fig. 1, the present embodiment relates to a high-temperature flue gas purification system, which includes an induced draft fan 1, a cooling purifier 2, a first washing tower 3, a second washing tower 4 and an adsorption tank 5; draught fan 1 be connected with cooling purifier 2, cooling purifier 2's air outlet is connected with first scrubbing tower 3, the air outlet and the second scrubbing tower 4 of first scrubbing tower 3 are connected, the air outlet and the adsorption tank 5 of second scrubbing tower 4 are connected.
As shown in fig. 2, the cooling purifier 2 comprises a cooling pipe 21, a cooling sprayer 22, a dust-liquid separation tank 23, a liquid cooling tank 24, a cold water circulation tank 25, a cooling water pump 26 and a cooling spray pipe 27; one end of the cooling pipe 21 is provided with a cooling air inlet 211, the other end of the cooling pipe is provided with a cooling air outlet 212, and the cooling air inlet 211 is connected with an air outlet of the induced draft fan 1 through a second induced draft pipe 8; the cooling spray throwers 22 are arranged at the tops in the cooling pipes 21 at intervals, the dust-liquid separation tank 23 is communicated with the bottoms of the cooling pipes 21, the dust-liquid separation tank 23 is communicated with the liquid cooling tank 24 through a drainage pipe 28, the liquid cooling tank 24 is communicated with the cold water circulation tank 25 through an overflow weir 29, the cooling water pump 26 is connected with the cold water circulation tank 25, and the cooling water pump 26 is connected with the cooling spray throwers 22 through a cooling spray pipe 27. Cooling purifier 2 is through most smoke and dust and water separation of dirt liquid separator box 23 in with the cooling water, and through liquid cooling tank 24 deposit the separation smoke and dust once more, the hydroenergy that comes cold water circulation case 25 can reach the standard of reuse, can cool off by the reuse water resource, can be favorable to protecting other purifier with high temperature flue gas but not receive the damage of high temperature, and cooling purifier 2 can also get rid of most smoke and dust in the flue gas simultaneously.
The bottom of the dust-liquid separation box 23 is provided with a first sewage discharge port 231, and a ball float valve 232 is arranged in the dust-liquid separation box 23; the bottom of the liquid cooling box 24 is provided with a second drain 241, and the water inlet of the drainage tube 28 is positioned at the upper part of the dust-liquid separating box 23; the outlet of the draft tube 28 is located at the lower portion of the liquid cooling tank 24. The first drain 231 is used for discharging most of smoke dust, a drain valve is arranged at the first drain 231 for periodic drain, and the ball float valve 232 is used for controlling the water level in the dust-liquid separation tank 23; the second sewage draining port 241 is used for draining a small part of smoke dust in the liquid cooling tank 24, and a sewage draining valve is arranged at the second sewage draining port 241 for draining sewage regularly; the drainage tube 28 can ensure that the sewage with less smoke dust in the dust-liquid separation box 23 enters the liquid cooling box 24.
the dust-liquid separation box 23, the liquid cooling box 24 and the cold water circulation box 25 are of an integrated structure, the dust-liquid separation box 23, the liquid cooling box 24 and the cold water circulation box 25 are isolated through partition plates, the integrated structure is favorable for reducing the size of equipment, and the whole structure is more compact.
As shown in fig. 3, a first washing air outlet 38 is disposed at the top of the first washing tower 3, a first washing air inlet 39 is disposed at the lower part of the first washing tower 3, and the first washing air inlet 39 is connected to a cooling air outlet 212 of the cooling purifier 2 through a third induced draft tube 9; the bottom of the first washing tower 3 is provided with a first water storage tank 31, a first washing water pump 32 and a first automatic water replenishing device 33; the first automatic water replenishing device 33 is connected with the first water storage tank 31; three layers of first packing layers 34 are arranged in the first washing tower 3; a first plate type water collector 35 is arranged below the uppermost first packing layer 34; a plurality of first spiral sprayers 36 are respectively arranged above the first packing layer 34 at the lowest layer and the first packing layer 34 at the middle layer; the first packing layer is a Raschig ring which has acid resistance and heat resistance and is low in price; the first spiral sprayer 36 is connected with the first washing water pump 32 through a first washing spraying pipe 37, the first washing water pump 32 is connected with the first water storage tank 31, and the first washing tower 3 is provided with a plurality of first windows 30 for observation.
As shown in fig. 4, a second washing air outlet 48 is disposed at the top of the second washing tower 4, a second washing air inlet 49 is disposed at the lower part of the second washing tower 4, and the second washing air inlet 49 is connected to the first washing air outlet 38 of the first washing tower 3 through a fourth induced draft tube 10; the bottom of the second washing tower 4 is provided with a second water storage tank 41, a second washing water pump 42 and a second automatic water replenishing device 43; the second automatic water replenishing device 43 is connected with the second water storage tank 41; three layers of second packing layers 44 are arranged in the second washing tower 4; a second plate type water collector 45 is arranged below the uppermost second packing layer 44; a plurality of second spiral sprayers 46 are respectively arranged above the second packing layer 44 at the lowest layer and the second packing layer 44 at the middle layer; the second packing layer 44 is a Raschig ring which has acid resistance and heat resistance and is low in price; the second spiral sprayer 46 is connected with the second washing water pump 42 through a second washing spray pipe 47, the second washing water pump 42 is connected with the second water storage tank 41, and the second washing tower 4 is provided with a plurality of second windows 40 for observation.
As shown in fig. 5, one end of the adsorption box 5 is provided with an adsorption air inlet 51, and the other end is provided with an adsorption air outlet 52; an adsorption filler area 53 is arranged in the adsorption box, and the filler in the adsorption filler area 53 is activated carbon; the adsorption air inlet 51 is connected with the second washing air outlet 48 of the second washing tower 4 through the fifth induced air duct 11, the adsorption air outlet 52 is connected with the chimney 6 through the sixth induced air duct 12, and the purified flue gas is discharged to a specified height through the chimney 6. The air inlet of the draught fan 1 is connected with a first induced draft pipe 7, and the draught fan 1 is used for controlling the air quantity and the air speed of flue gas entering.
The working principle of the invention is as follows:
The high-temperature flue gas enters a first induced draft pipe 7, a negative pressure is generated by the rotation of an induced draft fan 1 through an impeller, and the high-temperature flue gas is further extracted from the first induced draft pipe 1 and enters a cooling pipe 21 through a second induced draft pipe 8; the cooling water pump 26 extracts cooling water from the cold water circulation tank 25, sprays the cooling water through the plurality of sprayers 22, and cools and removes dust from the high-temperature flue gas in the cooling 21; the particle dust in the flue gas enters the dust-liquid separation box 23 below along with the cooling water, and the cooled and purified waste gas enters the first washing tower 3 through the third induced draft tube 9.
The flue gas enters the first washing tower 3 from the lower part of the first washing tower 3; and the flue gas and part of water vapor move upwards, the water vapor is collected by the first plate-type water collector 35, and the flue gas is discharged from the first washing air outlet 38 at the top of the first washing tower 3 and enters the second washing tower 3 through the fourth air guiding pipe 10.
The flue gas enters the first washing tower 4 from the lower part of the second washing tower 4; and the flue gas is moved upwards all the time, meanwhile, the second spiral sprayer 46 above the second packing layer 44 at the lowest layer and the second packing layer 44 at the middle layer starts spraying water, the flue gas is purified again, the flue gas and part of water vapor move upwards, the water vapor is collected by the second plate type water collector 45, and the flue gas is discharged from the second washing air outlet 48 at the top of the second washing tower 4 and enters the adsorption tank 5 through the fifth air guiding pipe 11.
The flue gas entering the adsorption box 5 is adsorbed by the activated carbon of the adsorption box 5 to adsorb peculiar smell and fine particles in the flue gas, reaches the emission standard, and is finally discharged into the atmosphere through a chimney 6.
In the cooling purifier 2, the waste water enters the dust-liquid separation tank 23 and then undergoes solid-liquid separation, most of the smoke dust is precipitated at the bottom of the dust-liquid separation tank 23, periodic pollution discharge is carried out through a first pollution discharge port 231, and the water level is controlled through a ball float 232; clear liquid at the upper part and a small part of smoke dust enter the liquid cooling box 24 through the drainage tube 28 to be cooled again and subjected to solid-liquid separation, the smoke dust is precipitated at the bottom of the liquid cooling box 24, and periodic pollution discharge is carried out through the second pollution discharge port 241; the cooled clear liquid enters the cold water circulating tank 25 through the overflow weir 29, the cooling water entering the cold water circulating tank 25 reaches the standard of recycling, the cooling water is lifted to the cooling spray pipe 27 through the cooling water pump 26, and finally the cooling spray pipe 22 sprays the cooling water into the cooling pipe 21 to cool and remove dust from the high-temperature flue gas. According to the process, the internal water is recycled, the utilization rate of cooling water is improved, and the operation cost is reduced.
The present invention and its embodiments have been described above schematically, without limitation, and the embodiments of the present invention are shown in the drawings, and the actual structures are not limited thereto. Therefore, those skilled in the art should understand that they can easily and effectively design and modify the structure and embodiments of the present invention without departing from the spirit and scope of the present invention.
Claims (10)
1. A high temperature flue gas clean system which characterized in that: the device comprises an induced draft fan, a cooling purifier, a first washing tower, a second washing tower and an adsorption box; the induced draft fan is connected with the cooling purifier, an air outlet of the cooling purifier is connected with the first washing tower, an air outlet of the first washing tower is connected with the second washing tower, and an air outlet of the second washing tower is connected with the adsorption tank;
The cooling purifier comprises a cooling pipe, a cooling sprayer, a dust-liquid separation box, a liquid cooling box, a cold water circulation box, a cooling water pump and a cooling sprayer; cooling tube one end be equipped with the cooling air intake, the other end is equipped with cooling air outlet, the top of cooling spray thrower interval setting in the cooling tube, dirt liquid separator box and cooling tube bottom intercommunication, dirt liquid separator box passes through drainage tube and liquid cooling case intercommunication, liquid cooling case passes through overflow weir and cold water circulation case intercommunication, cooling water pump be connected with the cold water circulation case, cooling water pump is connected with the cooling spray thrower through the cooling spray pipe.
2. The high-temperature flue gas purification system according to claim 1, wherein: the first washing tower is made of PP or 304 stainless steel, a first washing air outlet is formed in the top of the first washing tower, and a first washing air inlet is formed in the lower portion of the first washing tower; the bottom of the first washing tower is provided with a first water storage tank, a first washing water pump and a first automatic water replenishing device; the first automatic water replenishing device is connected with the first water storage tank; three first packing layers are arranged in the first washing tower; a first plate type water collector is arranged below the uppermost first packing layer; a plurality of first spiral sprayers are respectively arranged above the first packing layer at the lowest layer and the first packing layer at the middle layer; the first spiral sprayer is connected with a first washing water pump through a first washing spraying pipe, and the first washing water pump is connected with a first water storage tank.
3. The high-temperature flue gas purification system according to claim 1, wherein: the second washing tower is made of PP or 304 stainless steel, a second washing air outlet is formed in the top of the second washing tower, and a second washing air inlet is formed in the lower portion of the second washing tower; the bottom of the second washing tower is provided with a second water storage tank, a second washing water pump and a second automatic water replenishing device; the second automatic water replenishing device is connected with the second water storage tank; three second packing layers are arranged in the second washing tower; a second plate type water collector is arranged below the uppermost second packing layer; a plurality of second spiral sprayers are respectively arranged above the second packing layer at the lowest layer and the second packing layer at the middle layer; the second spiral sprayer is connected with a second washing water pump through a second washing spraying pipe, and the second washing water pump is connected with a second water storage tank.
4. The high-temperature flue gas purification system according to claim 1, wherein: one end of the adsorption box is provided with an adsorption air inlet, and the other end of the adsorption box is provided with an adsorption air outlet; an adsorption packing area is arranged in the adsorption box.
5. The high-temperature flue gas purification system according to claim 5, wherein: the filler in the adsorption filler area is one of or a mixture of activated carbon, zeolite molecular sieve, activated alumina, limestone, diatomite, silica gel and resin adsorbent in any proportion.
6. The high temperature flue gas purification system of claim 1, wherein: the air inlet of the induced draft fan is connected with a first induced draft pipe, and the induced draft fan is connected with the cooling purifier through a second induced draft pipe; the cooling purifier is connected with the first washing tower through a third induced draft pipe; the first washing tower is connected with the second washing tower through a fourth induced draft pipe, and the second washing tower is connected with the adsorption tank through a fifth induced draft pipe; the adsorption tank is connected with the chimney through a sixth induced draft pipe.
7. The high temperature flue gas purification system of claim 1, wherein: a first drain outlet is formed at the bottom of the dust-liquid separation tank, and a ball float valve is arranged in the dust-liquid separation tank; the bottom of the liquid cooling box is provided with a second sewage outlet, and the water inlet of the drainage tube is positioned at the upper part of the dust-liquid separation box; the water outlet of the drainage tube is positioned at the lower part of the liquid cooling tank.
8. The high temperature flue gas purification system of claim 1, wherein: the dust-liquid separation tank, the liquid cooling tank and the cold water circulation tank are of an integrated structure, and are isolated by partition plates.
9. The high temperature flue gas purification system of claim 2, wherein: the first packing layer is a Raschig ring.
10. The high temperature flue gas purification system of claim 3, wherein: the second packing layer is a Raschig ring.
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| CN201910957728.6A CN110559784A (en) | 2019-10-10 | 2019-10-10 | high-temperature flue gas purification system |
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| CN201910957728.6A CN110559784A (en) | 2019-10-10 | 2019-10-10 | high-temperature flue gas purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351198A (en) * | 2023-06-01 | 2023-06-30 | 中国华能集团清洁能源技术研究院有限公司 | Flue gas adsorption device and system with automatic blanking function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101829468A (en) * | 2009-03-10 | 2010-09-15 | 上海融新能源环境科技有限公司 | Flue-gas cleaning method and system for waste incineration |
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