CN111514732A - Multi-pipe type dust removal and desulfurization integrated equipment - Google Patents
Multi-pipe type dust removal and desulfurization integrated equipment Download PDFInfo
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- CN111514732A CN111514732A CN202010354886.5A CN202010354886A CN111514732A CN 111514732 A CN111514732 A CN 111514732A CN 202010354886 A CN202010354886 A CN 202010354886A CN 111514732 A CN111514732 A CN 111514732A
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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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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Abstract
The invention discloses a multi-tube dust removal and desulfurization integrated device, which relates to the technical field of flue gas treatment and comprises a tower body, wherein an alkaline aqueous solution is filled at the bottom in the tower body; the gas inlet cavity is arranged in the tower body, a first gas inlet is formed in the gas inlet cavity, a guide plate is arranged in the gas inlet cavity, and the lower end of the guide plate is higher than the liquid level of the alkaline aqueous solution; and the desulfurization cavity is arranged in the tower body, a second air inlet is formed in the desulfurization cavity, the desulfurization cavity is communicated with the air inlet cavity through the second air inlet, a plurality of air distribution pipes are arranged in the desulfurization cavity, the air inlet ends of the air distribution pipes are communicated with the second air inlet, and the air outlet ends of the air distribution pipes extend into the alkaline aqueous solution. The invention achieves larger contact area between the flue gas and the alkaline aqueous solution by discharging the flue gas into the alkaline aqueous solution, and has better purification effect compared with simple impact type dust removal and spray type desulfurization.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to a multi-tube type dust removal and desulfurization integrated device.
Background
The flue gas discharged by the coal-fired boiler contains a large amount of sulfur dioxide to pollute the atmospheric environment, so the flue gas can be discharged after being desulfurized and meeting the discharge standard. Most of traditional desulfurization treatment equipment adopts alkaline desulfurizer and flue gas reaction and makes the sulfur dioxide by the desorption, for the mixture of realization flue gas and desulfurizer, generally adopts the nozzle with the desulfurizer blowout to with the flue gas contact, however, the flue gas can not evenly contact with the desulfurizer, and flue gas and desulfurizer mixed effect is relatively poor, finally leads to the desulfurization effect of flue gas ideal inadequately, and the dust removal effect of flue gas is also relatively poor simultaneously.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a multi-tube type dust removal and desulfurization integrated device.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a multi-tube dust removal and desulfurization integrated device comprises a tower body, wherein an alkaline aqueous solution is contained at the bottom in the tower body; the gas inlet cavity is arranged in the tower body, a first gas inlet is formed in the gas inlet cavity and is higher than the liquid level of the alkaline aqueous solution, a guide plate used for guiding the flue gas downwards is arranged in the gas inlet cavity, and the lower end of the guide plate is higher than the liquid level of the alkaline aqueous solution; and the desulfurization chamber, set up in the tower body, the second air inlet has been seted up on the desulfurization chamber, the desulfurization chamber with the chamber of admitting air passes through the second air inlet intercommunication, the guide plate is located first air inlet with between the second air inlet, just the second air inlet is higher than the lower extreme of guide plate, be provided with a plurality of gas distribution pipes in the desulfurization chamber, the inlet end of gas distribution pipe with the second air inlet intercommunication, the end of giving vent to anger of gas distribution pipe all extends in the alkaline water solution.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: the second inlet port department is provided with a plurality of flue gas pipelines that supply the flue gas to get into the desulfurization chamber, a plurality of the gas distribution pipe is evenly arranged into a plurality of rows, and a plurality of rows the gas distribution pipe respectively with a plurality of flue gas pipeline one-to-one, the inlet end of gas distribution pipe all with correspond the flue gas pipeline intercommunication.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: the desulfurization intracavity is located gas distribution pipe's top is provided with flue gas flow straightener, flue gas flow straightener includes the flow equalizing plate, the slope of flow equalizing plate set up in the desulfurization intracavity, just the flow equalizing plate closes on the one end of second air inlet is higher than the one end that the second air inlet was kept away from to the flow equalizing plate.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: gaps for enabling the smoke to move upwards are reserved between any two adjacent rows of the air distribution pipes, and through holes for enabling the smoke to move upwards are formed in the flow equalizing plate corresponding to the gaps between the air distribution pipes.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: the desulfurization cavity is located the top of flow equalizing plate is provided with packing layer and defogging layer, just the packing layer is located the below on defogging layer, the flue gas export has been seted up to the upper end in desulfurization cavity.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: the desulfurization cavity is internally provided with a packing layer, the packing layer is arranged on the inner side of the desulfurization cavity, the packing layer is arranged on the outer side of the desulfurization cavity, the packing layer is arranged on the packing layer, the.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: two groups of spraying devices are further arranged between the packing layer and the demisting layer in the desulfurization cavity, the spray heads of the spraying devices close to the packing layer face the packing layer, and the spray heads of the spraying devices close to the demisting layer face the demisting layer.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: the spraying device is characterized in that the spraying liquid supply position of the spraying device below the packing layer is alkaline aqueous solution in the tower body, the spraying liquid supply position of the spraying device close to the demisting layer is a process water storage tank arranged outside the tower body, and the spraying liquid supply position of the spraying device above the packing layer and close to the packing layer is alkaline aqueous solution in the tower body or a process water storage tank arranged outside the tower body.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: the bottom of tower body is provided with the ash hole, the bottom surface in the tower body sets up to the inclined plane, just the inclined plane is to the ash hole slope.
As a preferred scheme of the multi-tube dust removal and desulfurization integrated equipment, the invention comprises the following steps: the tower is characterized in that an overflow device is further arranged in the tower body and comprises an overflow pipe, the upper end of the overflow pipe is flush with the preset liquid level of the alkaline aqueous solution, and the lower end of the overflow pipe extends out of the tower body.
The invention has the beneficial effects that:
(1) the flue gas is guided by the guide plate and then impacts an alkaline aqueous solution in the tower body to carry out dust removal and desulfurization in the first stage, then the flue gas is folded and upwards enters the gas distribution pipe through the second gas inlet and enters the alkaline aqueous solution along with the gas distribution pipe to be tightly contacted with the solution, dust in the flue gas becomes heavy and falls after absorbing moisture, and SO in the flue gas2、SO3When the acidic gas is neutralized with the alkaline aqueous solution, the acidic gas is absorbed by reaction, secondary dust removal and desulfurization of the flue gas are realized, the flue gas is discharged into the alkaline aqueous solution to achieve larger contact area between the flue gas and the alkaline aqueous solution, and the flue gas purification device has better purification effect compared with simple impact dust removal and spray type desulfurization;
(2) the spraying device is arranged in the desulfurization cavity, when the treatment effect of the flue gas subjected to dust removal and desulfurization in two stages still cannot be expected, the water pump can convey the alkaline aqueous solution in the tower body to the spraying pipe and spray the alkaline aqueous solution downwards, so that the flue gas is contacted with the alkaline aqueous solution again, and the desulfurization effect of the flue gas is further improved;
(3) the desulfurization device is characterized in that a packing layer and a demisting layer are also arranged in a desulfurization cavity, the flue gas which is contacted with an alkaline aqueous solution firstly passes through the packing layer, the flue gas is purified again, and then is dehydrated and demisted through the demisting layer, so that the discharged flue gas is ensured;
(4) according to the invention, the plurality of flue gas pipelines are arranged at the second gas inlet and correspond to the plurality of gas distribution pipes one by one, so that flue gas entering the desulfurization cavity from the second gas inlet can only enter the gas distribution pipes from the flue gas pipelines and enter the alkaline aqueous solution along the gas distribution pipes, and can move upwards from gaps among the gas distribution pipes after reacting with the alkaline aqueous solution, the flue gas is treated according to a preset flow, the desulfurization and dust removal effects of the flue gas are ensured, and the gas distribution pipes divide a large stream of flue gas into a plurality of small streams of flue gas for treatment, so that the treatment effect is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the multi-tube dust-removing and desulfurizing integrated equipment provided by the invention;
FIG. 2 is a top view of the gas distribution tube card of the multi-tube dust removal and desulfurization integrated apparatus provided by the present invention;
FIG. 3 is a flow direction of the flue gas of FIG. 2;
FIG. 4 is a front view of the second air inlet of the multi-tube dust-removing and desulfurizing integrated device provided by the invention;
wherein: 1. a tower body; 2. an alkaline aqueous solution; 3. an air inlet cavity; 4. a first air inlet; 5. a baffle; 6. a desulfurization chamber; 7. a second air inlet; 8. an air distribution pipe; 9. a flue gas pipeline; 10. a flow equalizing plate; 11. a filler layer; 12. a demisting layer; 13. a spraying device; 14. an ash outlet; 15. an overflow pipe; 16. a sight glass; 17. a liquid level meter; 18. a medicine adding port; 19. a flue gas outlet; 20. a gas distribution pipe pattern plate; 21. and a baffle plate.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The flue gas discharged by the coal-fired boiler contains a large amount of sulfur dioxide to pollute the atmospheric environment, so the flue gas can be discharged after being desulfurized and meeting the discharge standard. Most of traditional desulfurization treatment equipment adopts alkaline desulfurizer and flue gas reaction and makes the sulfur dioxide by the desorption, for the mixture of realization flue gas and desulfurizer, generally adopts the nozzle with the desulfurizer blowout to with the flue gas contact, however, the flue gas can not evenly contact with the desulfurizer, and flue gas and desulfurizer mixed effect is relatively poor, finally leads to the desulfurization effect of flue gas ideal inadequately, and the dust removal effect of flue gas is also relatively poor simultaneously.
Referring to fig. 1 to 4, in view of this, the embodiment provides a multi-tube dust removal and desulfurization integrated device, a main body of the device includes a tower body 1, an alkaline aqueous solution 2 is contained at a bottom inside the tower body 1, and acidic gases such as SO2, SO3 and the like in flue gas after the flue gas contacts with the alkaline aqueous solution 2 are neutralized with the alkaline aqueous solution 2 and then are absorbed by reaction.
An air inlet cavity 3 is arranged on the left side in the tower body 1, a first air inlet 4 is formed in the end of the air inlet cavity 3, and flue gas to be treated enters the air inlet cavity 3 from the first air inlet 4. It should be noted that the first inlet 4 is higher than the liquid level of the aqueous alkali solution 2 in the column body 1. A guide plate 5 is arranged on the right side of the first air inlet 4 in the air inlet cavity 3, the upper end of the guide plate 5 is connected with the top plate of the air inlet cavity 3, the front end and the rear end of the guide plate 5 are respectively connected with the front end and the rear end in the air inlet cavity 3, and the lower end of the guide plate 5 is higher than the liquid level of the alkaline aqueous solution 2. The guide plate 5 can guide the flue gas entering the air inlet cavity 3 from the first air inlet 4 downwards, so that the flue gas impacts downwards to the liquid level of the alkaline aqueous solution 2, and the first-stage dust removal and desulfurization of the flue gas are realized.
Wherein, guide plate 5 can be by last plate body and hypoplastron body group one-tenth, and wherein, hypoplastron body sets up along vertical direction, and the lower extreme of going up the plate body docks with the upper end of lower plate body, and the upper end of going up the plate body is fixed in the top of chamber 3 that admits air, and the interval between the upper end of going up the plate body and first air inlet 4 is less than the interval between last plate body lower extreme and the first air inlet 4, makes the slope of going up the plate body set up in chamber 3 that admits air, is convenient for guide the flue. Because the guide plate 5 needs to contact untreated flue gas, which has initial temperature, contains dust and contains corrosive gas, the requirement on the high-temperature resistance and corrosion resistance of the guide plate 5 is high, and the guide plate 5 is made of 316L called carbon fiber.
In addition, the lower end of the guide plate 5 is also provided with a flow guide part with a water drop-shaped section, so that the flue gas moving to the lower end of the guide plate 5 along the guide plate 5 can slightly obliquely move towards the left side of the guide plate 5 under the flow guide effect of the flow guide part, and the flue gas is prevented from directly folding and upwards entering the second air inlet 7.
A desulfurization cavity 6 is arranged at the right side of the air inlet cavity 3 in the tower body 1. It should be noted that the bottoms of the desulfurization chamber 6 and the air inlet chamber 3 are both filled with the alkaline aqueous solution 2. The second air inlet 7 has been seted up on the left side of desulfurization chamber 6, and desulfurization chamber 6 communicates through second air inlet 7 with admit air chamber 3. The second air inlet 7 is positioned on the right side of the guide plate 5, and the second air inlet 7 is higher than the lower end of the guide plate 5. The flue gas entering the air inlet cavity 3 from the first air inlet 4 is guided by the guide plate 5, impacts downwards to the liquid level of the alkaline aqueous solution 2, moves to the right side of the guide plate 5, then folds upwards, and enters the desulfurization cavity 6 through the second air inlet 7.
Wherein, a plurality of flue gas pipelines 9 for flue gas to enter the desulfurization cavity 6 are arranged at the second air inlet 7, and the flue gas pipelines 9 are uniformly distributed along the width direction of the second air inlet 7. A plurality of gas distribution pipes 8 are arranged in the desulfurization cavity 6 below the flue gas pipeline 9, the gas distribution pipes 8 are uniformly arranged into a plurality of rows, and the number of the rows is consistent with that of the flue gas pipelines 9. Every trachea 8 of arranging corresponds with corresponding flue gas pipeline 9 respectively, and the many gas distribution pipes 8 in every trachea 8 of arranging evenly arrange along the length direction that corresponds flue gas pipeline 9 promptly, and the intake pipe of these gas distribution pipes 8 is connected with corresponding flue gas pipeline 9, and the end of giving vent to anger of gas distribution pipe 8 extends in alkaline aqueous solution 2. The flue gas enters the flue gas pipeline 9 at the second gas inlet 7, flows along the flue gas pipeline 9, then enters the gas distribution pipe 8 from the gas inlet end of the gas distribution pipe 8, then enters the alkaline aqueous solution 2 from the gas distribution pipe 8, and contacts with the alkaline aqueous solution 2, so that the second-stage dust removal and desulfurization are realized.
In the desulfurization chamber 6, a gas distribution tube plate 20, a baffle 21, and a flow equalizing plate 10 are installed at the second gas inlet 7. The height of cloth trachea card 20 flushes with the lower extreme of second air inlet 7, offers the gas pocket unanimous with cloth trachea 8 quantity on cloth trachea card 20, and the gas pocket corresponds with cloth trachea 8's position and arranges, these gas pockets respectively with correspond the inlet end intercommunication of cloth trachea 8. The baffles 21 are provided with a plurality of blocks which are vertically arranged above the gas distribution pipe 8 pattern plate, and the baffles 21 are respectively arranged at two sides of each exhaust hole, so that a flue gas channel is formed between every two adjacent baffles 21. The left end of the baffle 21 extends to the position of the second air inlet 7, and the right end of the baffle 21 is connected with the right side wall of the desulfurization cavity 6. The flow equalizing plate 10 is arranged above the baffle 21, the left end of the flow equalizing plate 10 is connected with the upper end of the second air inlet 7, and the right end of the flow equalizing plate 10 is connected with the right side wall of the desulfurization cavity 6. The flow equalizing plate 10, the plurality of baffle plates 21 and the gas distribution tube flower plate 20 are combined to form a box body, the middle part of which is uniformly provided with a plurality of flue gas pipelines 9.
Preferably, the left end of the flow equalizing plate 10 is higher than the right end of the flow equalizing plate 10, that is, the flow equalizing plate 10 is obliquely installed in the desulfurization chamber 6, so that the height of each flue gas pipeline 9 is gradually reduced from the left end to the right end of the flow equalizing plate 10, and thus, the flue gas entering the flue gas pipelines 9 can be uniformly distributed into the gas distribution pipe 8 below each flue gas pipeline 9.
In addition, a gap for the upward movement of the flue gas is reserved between any two adjacent gas distribution pipes 8, and the gap is the gap reserved between two adjacent baffles 21 between two adjacent flue gas pipelines 9. Through holes for upward movement of the flue gas are formed in the flow equalizing plate 10 corresponding to gaps between the gas distribution pipes 8. The flue gas enters the alkaline aqueous solution 2 through the gas distribution pipes 8, contacts and reacts with the alkaline aqueous solution 2, moves upwards from the gap between two adjacent rows of gas distribution pipes 8, and then moves to the upper part of the desulfurization cavity 6 through the through holes on the flow equalizing plate 10.
A packing layer 11 and a demisting layer 12 are further arranged above the flow equalizing plate 10 in the desulfurization cavity 6, the packing layer 11 and the demisting layer 12 are both installed in the desulfurization cavity 6 along the horizontal direction, and the packing layer 11 is located below the demisting layer 12. And spray devices 13 are arranged between the packing layer 11 and the flow equalizing plate 10 and between the packing layer 11 and the demisting layer 12 in the desulfurization cavity 6, each spray device 13 comprises a spray pipe, one end of each spray pipe is communicated with a spray liquid supply part through a water pump, and the other end of each spray pipe is communicated with a spray head in the desulfurization cavity 6. The water pump can convey the spray liquid at the spray liquid supply position into the spray pipe and then the spray liquid is sprayed out from the spray head.
Wherein, a group of spraying devices 13 are arranged below the packing layer 11, and the spraying liquid supply position of the spraying devices 13 is the alkaline aqueous solution 2 in the tower body 1. When the treatment effect of the flue gas after the two stages of dust removal and desulfurization still cannot be expected, the water pump can convey the alkaline aqueous solution 2 in the tower body 1 to the spray pipe and spray the alkaline aqueous solution downwards, so that the flue gas is contacted with the alkaline aqueous solution 2 again. Two groups of spray devices 13 are arranged between the packing layer 11 and the demisting layer 12, one group of the two groups of spray devices 13 is close to the packing layer 11, and the other group is close to the demisting layer 12. Wherein, the spray head of the spray device 13 close to the demisting layer 12 faces the demisting layer 12, the spray liquid supply position in the spray device 13 is a process water storage tank outside the tower body 1, and the water pump can convey the process water in the process water storage tank to the spray pipe and spray out towards the demisting layer 12, so as to flush the demisting layer 12. The spray head of the spray device 13 close to the packing layer 11 faces the packing layer 11, the spray liquid supply position of the spray device 13 is the alkaline aqueous solution 2 in the tower body 1 or a process water storage tank outside the tower body 1, and can be adjusted according to actual use requirements, when the desulfurization effect of the flue gas is required to be improved, the spray liquid supply position of the spray device 13 is the alkaline aqueous solution 2 in the tower body 1, the alkaline aqueous solution 2 can be sprayed to the packing layer 11 through a water pump, so that an alkaline aqueous solution 2 liquid film is formed in the packing layer 11, an absorption model of water-coated gas can be formed when the flue gas passes through the packing layer 11, and the desulfurization effect of the flue gas is improved; when the packing layer 11 needs to be washed, the spraying liquid supply position of the spraying device 13 is a process water storage tank outside the tower body 1, and the water pump can convey the process water in the process water storage tank to the spraying pipe and spray the process water towards the packing layer 11, so that the packing layer 11 can be washed.
The upper part of the desulfurization cavity 6 is provided with a flue gas outlet 19, and flue gas after multiple times of dust removal and desulfurization is discharged from the flue gas outlet 19.
An ash outlet 14 is also arranged at the bottom of the tower body 1, and an external water seal is arranged at the ash outlet 14. The dust collected at the ash outlet 14 can be discharged through the outer water seal. Preferably, the bottom surface in the tower body 1 is arranged to be an inclined surface, and the inclined surface inclines towards the ash outlet 14, so that the ash outlet 14 can be gathered by the gradient of the inclined surface at the bottom of the tower body 1 of dust removed in the flue gas, and the ash discharging effect in the tower body 1 is ensured.
Still be provided with overflow arrangement in tower body 1, this overflow arrangement includes overflow pipe 15, and the upper end of overflow pipe 15 flushes with the liquid level of presetting of alkaline aqueous solution 2, and the lower extreme of overflow pipe 15 extends outside tower body 1. The overflow device can control the liquid level height of the alkaline aqueous solution 2 in the tower body 1, thereby controlling the integral resistance of the equipment. Preferably, a sight glass 16 and a liquid level meter 17 are further provided on the tower body 1, and an operator can observe the liquid level of the alkaline aqueous solution 2 in the apparatus through the sight glass 16 and the liquid level meter 17.
The tower body 1 is also provided with a dosing port 18, and dosing is controlled through detection indexes after flue gas treatment. The dosing amount can be controlled by a metering pump and cems in an interlocking manner, or a PH sensor is additionally arranged in the tower body 1 for monitoring.
When the equipment is used: the flue gas to be treated enters the gas inlet cavity 3 from the first gas inlet 4, and the guide plate 5 in the gas inlet cavity 3 guides the flue gas downwards so that the flue gas impacts downwards to the liquid level of the alkaline aqueous solution 2, thereby realizing the first-stage dust removal and desulfurization of the flue gas; then the flue gas is folded upwards to enter a flue gas pipeline 9 through a second gas inlet 7, flows along the flue gas pipeline 9, then enters a gas distribution pipe 8 from the gas inlet end of the gas distribution pipe 8, then enters an alkaline aqueous solution 2 from the gas distribution pipe 8, and contacts with the alkaline aqueous solution 2, so that the second-stage dust removal and desulfurization are realized; the flue gas moves upwards in the prior art, moves upwards through a gap between two adjacent rows of gas distribution pipes 8, then moves to the upper part of the desulfurization cavity 6 through the through holes on the flow equalizing plate 10, and if the treatment effect of the flue gas subjected to dust removal and desulfurization in two stages cannot be expected, the water pump in the lowest spraying device 13 can convey the alkaline aqueous solution 2 in the tower body 1 to the spraying pipes and spray downwards, so that the flue gas is contacted with the alkaline aqueous solution 2 again; then the flue gas continues to move upwards, passes through the packing layer 11 and the demisting layer 12 in sequence and then is discharged out of the tower body 1 through the flue gas outlet 19.
Therefore, the invention achieves larger contact area between the flue gas and the alkaline aqueous solution 2 by discharging the flue gas into the alkaline aqueous solution 2, and has better purification effect than simple impact type dust removal and spray type desulfurization.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a multitube dust removal desulfurization integration equipment which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the tower comprises a tower body (1), wherein an alkaline aqueous solution (2) is contained at the bottom in the tower body (1);
the tower body is characterized by comprising an air inlet cavity (3), wherein the air inlet cavity (3) is arranged in the tower body (1), a first air inlet (4) is formed in the air inlet cavity (3), the first air inlet (4) is higher than the liquid level of the alkaline aqueous solution (2), a guide plate (5) used for guiding smoke downwards is arranged in the air inlet cavity (3), and the lower end of the guide plate (5) is higher than the liquid level of the alkaline aqueous solution (2); and the number of the first and second groups,
desulfurization chamber (6), set up in tower body (1), second air inlet (7) have been seted up on desulfurization chamber (6), desulfurization chamber (6) with admit air chamber (3) and pass through second air inlet (7) intercommunication, guide plate (5) are located first air inlet (4) with between second air inlet (7), just second air inlet (7) are higher than the lower extreme of guide plate (5), be provided with a plurality of gas distribution pipes (8) in desulfurization chamber (6), the inlet end of gas distribution pipe (8) with second air inlet (7) intercommunication, the end of giving vent to anger of gas distribution pipe (8) all extends in alkaline water solution (2).
2. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 1, wherein: second air inlet (7) department is provided with flue gas pipeline (9) that a plurality of confession flue gas got into desulfurization chamber (6), a plurality of cloth trachea (8) are evenly arranged into a plurality of rows, and a plurality of rows cloth trachea (8) respectively with a plurality of flue gas pipeline (9) one-to-one, the inlet end of cloth trachea (8) all with correspond flue gas pipeline (9) intercommunication.
3. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 2, wherein: be located in desulfurization chamber (6) the top of gas distribution pipe (8) is provided with the flue gas flow straightener, the flue gas flow straightener includes flow equalizing plate (10), flow equalizing plate (10) slope set up in desulfurization chamber (6), just flow equalizing plate (10) close to the one end of second air inlet (7) is higher than flow equalizing plate (10) is kept away from the one end of second air inlet (7).
4. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 3, wherein: gaps for upward movement of the flue gas are reserved between any two adjacent rows of the gas distribution pipes (8), and through holes for upward movement of the flue gas are formed in the flow equalizing plate (10) corresponding to the gaps between the gas distribution pipes (8).
5. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 4, wherein: a packing layer (11) and a demisting layer (12) are arranged above the flow equalizing plate (10) in the desulfurization cavity (6), the packing layer (11) is arranged below the demisting layer (12), and a flue gas outlet (19) is formed in the upper end of the desulfurization cavity (6).
6. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 5, wherein: the desulfurization device is characterized in that a spraying device (13) is further arranged below the packing layer (11) in the desulfurization cavity (6), the spraying device (13) comprises a spraying pipe, one end of the spraying pipe is communicated with a spraying liquid supply part through a water pump, the other end of the spraying pipe is communicated with a spray head in the desulfurization cavity (6), and the spray head is arranged downwards.
7. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 6, wherein: two groups of spraying devices (13) are further arranged between the packing layer (11) and the demisting layer (12) in the desulfurization cavity (6), a spray head of the spraying device (13) close to the packing layer (11) faces towards the packing layer (11), and a spray head of the spraying device (13) close to the demisting layer (12) faces towards the demisting layer (12).
8. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 7, wherein: the spray liquid supply position of the spray device (13) below the packing layer (11) is the alkaline aqueous solution (2) in the tower body (1), the spray liquid supply position of the spray device (13) close to the demisting layer (12) is a process water storage tank arranged outside the tower body (1), and the spray liquid supply position of the spray device (13) above and close to the packing layer (11) is the alkaline aqueous solution (2) arranged in the tower body (1) or the process water storage tank arranged outside the tower body (1).
9. The multi-pipe dust removal and desulfurization integrated equipment according to any one of claims 1 to 8, characterized in that: the bottom of tower body (1) is provided with ash hole (14), the bottom surface in tower body (1) sets up to the inclined plane, just the inclined plane is to ash hole (14) slope.
10. The multi-tube dust removal and desulfurization integrated equipment as recited in claim 9, wherein: still be provided with overflow arrangement in tower body (1), overflow arrangement includes overflow pipe (15), the upper end of overflow pipe (15) with the liquid level of predetermineeing of alkaline aqueous solution (2) flushes, the lower extreme of overflow pipe (15) extends outside tower body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010354886.5A CN111514732A (en) | 2020-04-29 | 2020-04-29 | Multi-pipe type dust removal and desulfurization integrated equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010354886.5A CN111514732A (en) | 2020-04-29 | 2020-04-29 | Multi-pipe type dust removal and desulfurization integrated equipment |
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| CN111514732A true CN111514732A (en) | 2020-08-11 |
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| CN202010354886.5A Pending CN111514732A (en) | 2020-04-29 | 2020-04-29 | Multi-pipe type dust removal and desulfurization integrated equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495138A (en) * | 2020-12-03 | 2021-03-16 | 天长市富信电子有限公司 | Waste gas purification device for screen line production |
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Address after: No.39, Chengwen Road, Gaocheng Town, Yixing City, Wuxi City, Jiangsu Province Applicant after: YIXING HAINA ENVIRONMENTAL ENGINEERING Co.,Ltd. Address before: Room 105, building 39, China Yixing international environmental protection city, 66 Far East Avenue, Gaocheng Town, Yixing City, Wuxi City, Jiangsu Province, 214201 Applicant before: YIXING HAINA ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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Application publication date: 20200811 |
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