CN111617604A - Energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower - Google Patents
Energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower Download PDFInfo
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- CN111617604A CN111617604A CN202010507585.1A CN202010507585A CN111617604A CN 111617604 A CN111617604 A CN 111617604A CN 202010507585 A CN202010507585 A CN 202010507585A CN 111617604 A CN111617604 A CN 111617604A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
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Abstract
The invention relates to the field of flue gas desulfurization, in particular to a limestone-gypsum wet flue gas desulfurization tower, which utilizes a first liquid pumping pump and a liquid pumping pipe to convey limestone slurry into a flowing cavity through a liquid conveying pipe, and finally carries out spraying work through an atomizing spray head, so that the desulfurization tower is filled with the atomized limestone slurry in the area at the lower part of a partition plate, the contact between the flue gas entering the desulfurization tower through a flue gas pipe and an air blower and the slurry is more uniform and complete, the reaction degree of the slurry and the flue gas is improved, the desulfurization efficiency is improved, new liquid beads generated are gathered at the conical cylinder part of the desulfurization tower along with the continuous reaction of the flue gas and the slurry, the new liquid beads enter an oxidation treatment box through the conveying pipe, oxygen is fed into the oxidation treatment box through an oxygen feeding fan to carry out oxidation treatment on substances entering the oxidation treatment box to generate gypsum, and the redundant liquid can be fed into a limestone slurry barrel through a second liquid pumping, the recycling is carried out, and the energy is saved and the environment is protected.
Description
Technical Field
The invention relates to the field of flue gas desulfurization, in particular to an energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower.
Background
In recent years, clean combustion technologies for coal-fired thermal power, chemical engineering and heating have been developed rapidly, desulfurization and denitrification devices have become necessary equipment, almost all thermal power plants are equipped with desulfurization and denitrification equipment SO far, a limestone-gypsum wet flue gas desulfurization process is a common flue gas desulfurization method, a limestone-gypsum flue gas desulfurization system is installed at the tail end of a flue of a combustion boiler and behind a dust removal system, limestone (CaCO3) slurry is used as a detergent, and flue gas is washed in a desulfurization tower, SO that SO2 in the flue gas is removed.
The invention with the application number of CN201910325326.4 is the closest prior art, and discloses a limestone-gypsum wet flue gas desulfurization process, which structurally comprises a desulfurization tower, wherein a smoke inlet pipe, a mixing motor, a wastewater recovery tank and a water supply tank are arranged on the desulfurization tower, the smoke inlet pipe is fixedly connected to the left lower part of the desulfurization tower, an air blower is arranged on the smoke inlet pipe, the mixing motor is fixedly connected to the left upper part of the desulfurization tower, the wastewater recovery tank is fixedly connected to the bottom of the desulfurization tower, the water supply tank is fixedly connected to the right end of the wastewater recovery tank, a spray pipe, a mixing tank and a reaction tank are arranged inside the desulfurization tower, and the spray pipe is fixedly connected to the upper end inside the desulfurization tower. The invention enhances the strength in the flue gas desulfurization process, avoids the doped sulfur dioxide in the flue gas from being discharged into the atmosphere, and improves the protection effect on the atmosphere in the limestone-gypsum production process. However, when the desulfurization tower is used for limestone-gypsum wet desulfurization, water flow sprayed from the spray pipe needs to flow back through a limestone reactant, which is inconvenient for wastewater backflow, and the reactant is consumed continuously in the treatment process, which is inconvenient for adding the limestone reactant. Based on the technical scheme, the invention designs the energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower, which can solve the problems that when the desulfurization tower is used for limestone-gypsum wet desulfurization, water flow sprayed from a spray pipe needs to flow back through a limestone reactant, which is inconvenient for wastewater backflow, and the addition of the limestone reactant is inconvenient because reactants are continuously consumed during treatment.
The invention is realized by the following technical scheme:
an energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower comprises a base, a desulfurization tower, a flue gas pipe, a limestone slurry barrel and an oxidation treatment box, wherein the end part of the flue gas pipe is communicated with and penetrates through the side wall of the desulfurization tower, the limestone slurry barrel and the oxidation treatment box are arranged at the top end of the base, three groups of L-shaped supporting legs are arranged on the side wall of the desulfurization tower, the bottom ends of the L-shaped supporting legs are fixed on the top end of the base, an air blower is arranged in the middle of the flue gas pipe, the bottom end of the air blower is provided with a base, two groups of supporting rods are fixed at the bottom end of the base, the bottom end of each supporting rod is fixed on the top end of the base, a liquid injection port is formed at the top end of the limestone slurry barrel, a first liquid pump is arranged at the, the first liquid pump output end is connected with a liquid conveying pipe, the end part of the liquid conveying pipe penetrates and is communicated with the side wall of the desulfurization tower, an installation ring plate is fixed in the end part penetrating position of the liquid conveying pipe in the inner cavity of the desulfurization tower, a flowing cavity is arranged in the center of the installation ring plate, an atomizing nozzle is arranged at the bottom end of the installation ring plate and is communicated with the flowing cavity, a partition plate is fixed on the inner wall of the installation ring plate, a water-proof and air-permeable layer is embedded in the center of the partition plate, an air outlet pipe is arranged in the center of the top end of the desulfurization tower in a penetrating manner, a water inlet pipe is communicated on the side wall of the desulfurization tower, a liquid level sensor is arranged in the penetrating position of the water inlet pipe in the inner cavity of the desulfurization tower, a drain pipe is communicated in the region, the utility model discloses a lime stone thick liquid barrel, including transfer pipe end portion, oxidation treatment case, rectangular opening, hidden groove, back flow pipe end portion runs through intercommunication oxidation treatment case setting, oxidation treatment case top is provided with the oxygen supply fan, oxygen supply fan bottom is provided with the oxygen supply pipe, the oxygen supply pipe runs through oxidation treatment case top and sets up, the rectangle opening has been seted up to oxidation treatment case lateral wall central line bottom, the hidden groove has been seted up at rectangle opening top center, the concave groove has been seted up with bottom center cooperation to two vertical lateral walls of rectangle opening, concave groove and hidden groove intercommunication and sliding connection have the installing frame, the inside closed plate that is fixed with of installing frame, closed plate bottom edge center is fixed with the brace, oxidation treatment case lateral wall bottom runs through the intercommunication has the back flow.
As a further improvement of the above scheme, the desulfurization tower comprises a cylindrical part and a conical part, the bottom end of the flue gas pipe penetrating through the cylindrical part is above, and the length of the part of the flue gas pipe penetrating through the desulfurization tower is equal to the wall thickness of the desulfurization tower.
As a further improvement of the scheme, two ends of the L-shaped supporting legs are respectively welded and fixed on the side wall of the desulfurization tower and the top end of the base, the L-shaped supporting legs are fixed on the side wall of the desulfurization tower at the middle upper position of the side wall of the desulfurization tower, the L-shaped supporting legs of three groups are circumferentially arranged on the side wall of the desulfurization tower at equal intervals, and the supporting rods of two groups are symmetrically arranged by taking the center of the bottom end of the base as a symmetric center.
As a further improvement of the above scheme, the liquid suction pipe bottom is close to the setting of lime stone thick liquid bucket inner chamber bottom, the sealed installation crown plate that runs through of infusion tube tip just gos deep into the inside setting of the cavity that flows, the installation crown plate sets up the inner wall position that is close to the top at the desulfurizing tower inner chamber, installation crown plate lateral wall and desulfurizing tower inner chamber are sealed fixed the setting, the atomizer circumference evenly sets up in installation crown plate bottom.
As a further improvement of the above scheme, the position that the inlet tube runs through the desulfurizing tower is higher than the plane of installation crown plate top and is close to the top end setting of desulfurizing tower, the tip part that the inlet tube runs through the desulfurizing tower is deep in the desulfurizing tower, the length of liquid level inductor is less than the length that the inlet tube deepens the inside of desulfurizing tower, the position that the drain pipe runs through the desulfurizing tower lateral wall is close to the setting of installation crown plate top and the drain pipe tip does not exceed the desulfurizing tower inner wall.
As a further improvement of the scheme, the position of the conveying pipe penetrating through the side wall of the oxidation treatment box is positioned in the center of the side wall of the oxidation treatment box, and the end part of the conveying pipe and the vertical surface of the side wall penetrating through the oxidation treatment box are positioned on the same vertical surface.
As a further improvement of the scheme, the length of the rectangular opening is larger than half of the length of the side face of the oxidation treatment box where the rectangular opening is located, the height of the rectangular opening is smaller than half of the height of the oxidation treatment box, the height of the hidden groove is larger than the height of the concave groove, and the height of the installation frame is larger than the height of the concave groove.
As a further improvement of the scheme, the horizontal plane of the bottom end of the end part of the return pipe penetrating through the side wall of the oxidation treatment box is lower than the horizontal plane of the bottom end of the inner cavity of the oxidation treatment box, and the position of the return pipe penetrating through the side wall of the limestone slurry barrel is arranged close to the bottom end of the inner cavity of the limestone slurry barrel.
As a further improvement of the scheme, two ends of the surface wall of the return pipe are provided with one-way valves, and the end surface wall of the end part of the drain pipe penetrating through the desulfurizing tower is provided with an electromagnetic valve.
As a further improvement of the scheme, one side wall of the oxidation treatment box is provided with an observation window, and the area of the observation window is larger than half of the area of the side wall of the oxidation treatment box.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, by arranging the mounting ring plate, the flowing cavity, the atomizing spray head, the partition plate and the water-proof air-permeable layer, limestone slurry is conveyed into the flowing cavity through a liquid conveying pipe by utilizing a first liquid pump and a liquid pumping pipe, and finally the limestone slurry is sprayed by the atomizing spray heads arranged at equal intervals on the circumference under the mounting ring plate, so that the area of the desulfurization tower at the lower part of the partition plate is filled with the atomized limestone slurry, can let the flue gas that gets into in the desulfurizing tower through flue gas pipe and air-blower and more even and complete of thick liquid contact, improve the reaction degree of thick liquid and flue gas, the efficiency of sulphur removal has been improved, the flue gas after the reaction passes water proof ventilated membrane and gets into baffle upper portion region, baffle upper portion region passes through inlet tube injected water in the desulfurizing tower, the existence of liquid level inductor is convenient for control the liquid level, the flue gas further passes through the blast pipe after washing and discharges, the water proof ventilated membrane set up the thick liquid that can avoid after the atomizing and get into baffle upper portion region.
2. In the invention, by arranging the drain pipe, the delivery pipe, the oxygen supply fan, the return pipe, the second liquid pump, the electromagnetic valve and the one-way valve, new liquid beads generated along with the continuous reaction of the flue gas and the slurry are gathered at the conical cylinder part of the desulfurizing tower and enter the oxidation treatment box through the delivery pipe, simultaneously regional water in baffle upper portion in the desulfurizing tower pours into the oxidation treatment incasement into through the drain pipe, send oxygen at the oxidation treatment incasement through the oxygen delivery fan and carry out oxidation treatment to the material that gets into the oxidation treatment incasement and generate gypsum, unnecessary liquid can be carried to the lime stone thick liquid bucket in through the second drawing liquid pump, recycle, energy-concerving and environment-protective, the setting of solenoid valve is convenient for control the live time of the regional water in baffle upper portion in the desulfurizing tower, the existence of check valve can avoid the thick liquid in the lime stone thick liquid bucket to flow into the oxidation treatment incasement, the oxidation to the oxidation treatment incasement causes the influence.
3. According to the invention, by arranging the rectangular opening, the hidden groove, the concave groove, the mounting frame, the closing plate, the brace and the observation window, when gypsum is generated by oxidation in the oxidation treatment box, the observation window can be used for observing the internal reaction condition, when the gypsum in the oxidation treatment box needs to be cleaned, the closing plate and the mounting frame can be lifted to the hidden groove by using the brace under the sliding fit of the mounting frame, the hidden groove and the concave groove, so that the lifting opening is opened, the length of the rectangular opening is greater than half of the length of the side surface of the oxidation treatment box where the rectangular opening is located, the height of the rectangular opening is less than half of the height of the oxidation treatment box, and the gypsum in the oxidation treatment box can be taken out conveniently.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic rear side perspective sectional view of the present invention;
FIG. 3 is an enlarged view of part A of the present invention;
FIG. 4 is a schematic front side perspective cross-sectional view of the present invention;
FIG. 5 is an enlarged view of the part B of the present invention;
FIG. 6 is a schematic top view of the present invention;
FIG. 7 is a schematic view of the cross-sectional structure A-A of the present invention;
FIG. 8 is a schematic view of the cross-sectional structure of B-B of the present invention.
Wherein, 1-a base, 2-a desulfurizing tower, 3-a flue gas pipe, 4-a limestone slurry barrel, 5-an oxidation treatment box, 6-an L-shaped supporting leg, 7-a blower, 8-a base, 9-a supporting rod, 10-a liquid injection port, 11-a first liquid pump, 12-a liquid extraction pipe, 13-a liquid injection pipe, 14-an installation ring plate, 15-a flowing cavity, 16-an atomizing spray head, 17-a clapboard, 18-a water-proof and air-permeable layer, 19-an air outlet pipe, 20-a water inlet pipe, 21-a liquid level sensor, 22-a water outlet pipe, 23-a conveying pipe, 24-an oxygen supply fan, 25-an oxygen supply pipe, 26-a rectangular opening, 27-a hidden groove, 28-a concave groove, 29-an installation frame and 30-a closed plate, 31-a pull strip, 32-a return pipe, 33-a second liquid pump, 34-a one-way valve, 35-an electromagnetic valve and 36-an observation window.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical scheme of the invention is further explained by combining the attached drawings.
Example one
As shown in figures 1, 2 and 7, the energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower comprises a base 1, a desulfurization tower 2, a flue gas pipe 3, a limestone slurry barrel 4 and an oxidation treatment box 5, wherein the desulfurization tower 2 comprises a cylindrical part and a conical part, the bottom end of the cylindrical part of the flue gas pipe 3 is arranged above, the length of the part of the flue gas pipe 3 penetrating through the desulfurization tower 2 is equal to the wall thickness of the desulfurization tower 2, an observation window 36 is arranged on one side wall of the oxidation treatment box 5, the area of the observation window 36 is larger than half of the side wall area of the oxidation treatment box 5, the end part of the flue gas pipe 3 is communicated with and penetrates through the side wall of the desulfurization tower 2, the limestone slurry barrel 4 and the oxidation treatment box 5 are arranged at the top end of the base 1, three groups of L-shaped support legs 6 are arranged on the side wall of the desulfurization tower 2, two ends of the L-shaped support legs 6 are respectively welded and fixed on the side wall of the desulfurization tower 2 and the, three groups of L-shaped supporting legs 6 are arranged on the side wall of the desulfurizing tower 2 at equal intervals, the bottom ends of the L-shaped supporting legs 6 are fixed on the top end of a base 1, the middle part of a flue gas pipe 3 is provided with an air blower 7, the bottom end of the air blower 7 is provided with a base 8, the bottom end of the base 8 is fixed with two groups of supporting rods 9, the two groups of supporting rods 9 are symmetrically arranged by taking the bottom center of the base 8 as a symmetrical center, the bottom ends of the supporting rods 9 are fixed on the top end of the base 1, the top end of a limestone slurry barrel 4 is provided with a liquid injection port 10, the top center of the limestone slurry barrel 4 is provided with a first liquid pump 11, the bottom end of the first liquid pump 11 is communicated with a liquid pumping pipe 12, the bottom end of the liquid pumping pipe 12 is arranged near the bottom end of the inner cavity of the limestone slurry barrel 4, the bottom, the limestone slurry inside the limestone slurry barrel 4 is transported through the transport pipe 13 by the liquid suction pipe 12.
Example two
As shown in fig. 3 and 4, the second embodiment is a further improvement on the first embodiment.
An installation ring plate 14 is fixed in the end part of an infusion tube 13 in the inner cavity of a desulfurizing tower 2, the end part of the infusion tube 13 hermetically penetrates through the installation ring plate 14 and is arranged deep into a flow cavity 15, the installation ring plate 14 is arranged at the inner wall position of the inner cavity of the desulfurizing tower 2 close to the top end, the side wall of the installation ring plate 14 and the inner cavity of the desulfurizing tower 2 are hermetically and fixedly arranged, the center of the installation ring plate 14 is provided with the flow cavity 15, the bottom end of the installation ring plate 14 is provided with an atomizing nozzle 16, the circumference of the atomizing nozzle 16 is uniformly arranged at the bottom end of the installation ring plate 14, the atomizing nozzle 16 is communicated with the flow cavity 15, a partition plate 17 is fixed on the inner wall of the installation ring plate 14, a water-proof and air-permeable layer 18 is embedded in the center of the partition plate 17, an air outlet tube 19 is arranged in the center of the top end of the desulfurizing tower 2, the end part of the water inlet pipe 20 penetrating through the desulfurizing tower 2 extends into the desulfurizing tower 2, a liquid level sensor 21 is arranged in the inner cavity of the desulfurizing tower 2 at the penetrating position of the water inlet pipe 20, the length of the liquid level sensor 21 is less than the length of the water inlet pipe 20 penetrating into the desulfurizing tower 2, the side wall of the desulfurizing tower 2 penetrates through and is communicated with a drain pipe 22 in the area of the upper part of the mounting ring plate 14, the bottom end of the drain pipe 22 penetrates through and is communicated with the center of the top end of the oxidation treatment box 5, the position of the drain pipe 22 penetrating through the side wall of the desulfurizing tower 2 is arranged close to the top end of the mounting ring plate 14, the end part of the drain pipe 22 does not exceed the inner wall of the desulfurizing tower 2, the drain pipe 22 penetrates through the end surface wall of the desulfurizing tower 2 and is provided with an electromagnetic valve 35, the slurry is atomized and sprayed out by utilizing an atomizing nozzle 16, a slurry, SO2 and SO3 in the flue gas react with limestone in the slurry to form calcium sulfite and calcium sulfate, HCl and HF in the flue gas also react with limestone in the slurry to be absorbed, and the desulfurized flue gas enters the upper area of the partition plate 17 through the water-resisting and air-permeable layer 18 and is discharged through the air outlet pipe 19 after being washed.
EXAMPLE III
As shown in fig. 5, 6 and 8, the third embodiment is a further improvement on the second embodiment.
The center of the bottom end of the desulfurizing tower 2 is communicated with a conveying pipe 23, the position of the conveying pipe 23 penetrating through the side wall of the oxidation treatment box 5 is positioned at the center of the side wall of the oxidation treatment box 5, the vertical surfaces of the end part of the conveying pipe 23 and the side wall penetrating through the oxidation treatment box 5 are the same, the end part of the conveying pipe 23 penetrates through and is communicated with the oxidation treatment box 5, the top end of the oxidation treatment box 5 is provided with an oxygen supply fan 24, the bottom end of the oxygen supply fan 24 is provided with an oxygen supply pipe 25, the oxygen supply pipe 25 penetrates through the top end of the oxidation treatment box 5, the bottom end of the center line of the side wall of the oxidation treatment box 5 is provided with a rectangular opening 26, the length of the rectangular opening 26 is more than half of the length of the side surface of the oxidation treatment box 5, the height of the rectangular opening 26 is, the concave groove 28 and the hidden groove 27 are communicated and are connected with a mounting frame 29 in a sliding way, the height of the hidden groove 27 is greater than that of the concave groove 28, the height of the mounting frame 29 is greater than that of the concave groove 28, a closing plate 30 is fixed inside the mounting frame 29, a brace 31 is fixed at the center of the bottom end edge of the closing plate 30, the bottom end of one side wall of the oxidation treatment box 5 is communicated with a return pipe 32 in a penetrating way, the horizontal plane of the bottom end of the end part of the side wall of the oxidation treatment box 5, which penetrates through the side wall of the limestone slurry barrel 4, of the return pipe 32 is arranged close to the bottom end of the inner cavity of the limestone slurry barrel 4, the other end of the return pipe 32 is communicated with the side wall of the limestone slurry barrel 4, one-way valves 34 are arranged at two ends of the surface wall of the return pipe 32, the return pipe 32 is communicated with a second liquid pump 33, liquid beads with, in the conveyer pipe 23 gets into oxidation treatment case 5, send oxygen through send oxygen fan 24 and carry out oxidation treatment to the material that gets into in oxidation treatment case 5 and generate the gypsum, become calcium sulfite into calcium sulfate, supersaturation calcium sulfate solution crystallization generates the gypsum, and unnecessary liquid can be carried to lime stone thick liquid bucket 4 in through second drawing liquid pump 33, recycles, energy-concerving and environment-protective.
When the device is used, water conveying equipment is externally connected with the water inlet pipe 20, water is injected into the area above the partition plate 17 in the desulfurizing tower 2, the liquid level is controlled by the liquid level sensor 21, when the liquid level sensor 21 is completely immersed, the water injection is stopped, the first liquid pump 11 is started, limestone slurry in the limestone slurry barrel 4 is conveyed into the flowing cavity 15 in the mounting ring plate 14 through the conveying pipe 13 by the liquid pumping pipe 12, the limestone slurry is atomized and sprayed out through the atomizing spray head 16, a slurry atomizing area is formed in the desulfurizing tower 2, the flue gas is conveyed into the desulfurizing tower 2 through the flue gas pipe 3 by the air blower 7, the flue gas is pressurized by the air blower 7, the flue gas rises in the desulfurizing tower 2 and is in countercurrent contact with the atomized slurry, SO2 and SO3 in the flue gas react with the limestone in the slurry to form calcium sulfite and calcium sulfate, HCl and HF in the flue gas also react with the limestone in the slurry to be absorbed, the desulfurized flue gas enters the upper area of the partition plate 17 through the waterproof and breathable layer 18, is discharged through the air outlet pipe 19 after being washed, liquid beads with calcium sulfite, calcium sulfate and partial slurry generated by reaction are continuously accumulated on the conical barrel part of the desulfurizing tower 2, enter the oxidation treatment box 5 through the conveying pipe 23, the substances entering the oxidation treatment box 5 are subjected to oxidation treatment to generate gypsum in the oxidation treatment box 5 by oxygen supplied by the oxygen supply fan 24, the calcium sulfite is oxidized into calcium sulfate, supersaturated calcium sulfate solution is crystallized to generate gypsum, redundant liquid can be conveyed into the limestone slurry barrel 4 through the second liquid pump 33 for recycling, energy is saved and environment is protected, the existence of the one-way valve 34 can prevent the slurry in the limestone slurry barrel 4 from flowing into the oxidation treatment box 5 and influencing the oxidation action in the oxidation treatment box 5, and the condition of internal reaction can be observed by utilizing the observation window 36, when gypsum inside needs to be cleaned, the bracing piece 31 can be utilized to lift the sealing plate 30 and the mounting frame 29 into the hidden groove 27 under the sliding fit of the mounting frame 29, the hidden groove 27 and the concave groove 28, so that the rectangular opening 26 is opened, the gypsum inside the oxidation treatment box 5 can be taken out conveniently, the use time of water in the upper area of the partition plate 17 in the desulfurizing tower 2 can be controlled conveniently by the arrangement of the electromagnetic valve 35, the water can be conveyed into the oxidation treatment box 5 through the opening of the electromagnetic valve and the arrangement of the drain pipe 22, and the water is conveyed into the limestone slurry barrel 4 through the second liquid pump 33 for recycling.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an energy-concerving and environment-protective lime stone-gypsum wet flue gas desulfurization tower, includes base (1), desulfurizing tower (2), flue gas pipe (3), lime stone thick liquid bucket (4) and oxidation treatment case (5), its characterized in that: the flue gas pipe (3) tip intercommunication runs through desulfurizing tower (2) lateral wall setting, limestone slurry bucket (4) and oxidation treatment case (5) set up on base (1) top, be provided with three L type landing legs (6) of group on desulfurizing tower (2) lateral wall, L type landing leg (6) bottom mounting is on base (1) top, flue gas pipe (3) middle part is provided with air-blower (7), air-blower (7) bottom is provided with base (8), base (8) bottom mounting has two sets of bracing pieces (9), bracing piece (9) bottom mounting is on base (1) top, limestone slurry bucket (4) top has been seted up and has been annotated liquid mouth (10), limestone slurry bucket (4) top center is provided with first drawing liquid pump (11), first drawing liquid pump (11) bottom intercommunication has drawing liquid pipe (12), the device is characterized in that the bottom end of the liquid pumping pipe (12) penetrates through the top end of a limestone slurry barrel (4), the output end of a first liquid pumping pump (11) is connected with a liquid conveying pipe (13), the end part of the liquid conveying pipe (13) penetrates through and is communicated with the side wall of a desulfurizing tower (2), an installation annular plate (14) is fixed at the penetrating position of the end part of the liquid conveying pipe (13) in the inner cavity of the desulfurizing tower (2), a flowing cavity (15) is formed in the center of the installation annular plate (14), an atomizing nozzle (16) is arranged at the bottom end of the installation annular plate (14), the atomizing nozzle (16) is communicated with the flowing cavity (15), a partition plate (17) is fixed on the inner wall of the installation annular plate (14), a water-proof and air-permeable layer (18) is embedded in the center of the partition plate (17), an air outlet pipe (19) is arranged at, the utility model discloses a desulfurization tower, including desulfurizing tower (2), drain pipe (22), oxidation treatment box (5), oxygen supply fan (24), oxygen supply pipe (25), rectangular opening (26) has been seted up to oxidation treatment box (5) central line bottom, rectangular opening (26) has been seted up to rectangular opening (26) top center, two vertical side walls of the rectangular opening (26) are matched with the bottom center to form a concave groove (28), the concave groove (28) is communicated with the hidden groove (27) and is connected with an installation frame (29) in a sliding mode, a sealing plate (30) is fixed inside the installation frame (29), a brace (31) is fixed at the edge center of the bottom end of the sealing plate (30), a return pipe (32) penetrates and is communicated with the bottom end of one side wall of the oxidation treatment box (5), the other end of the return pipe (32) is connected with the side wall of the limestone slurry barrel (4) in a penetrating mode, and the return pipe (32) is communicated with a second liquid pump (33).
2. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: the desulfurizing tower (2) is including drum portion and awl section of thick bamboo portion, flue gas pipe (3) run through drum portion bottom upper position, the length that the part that the flue gas pipe (3) run through desulfurizing tower (2) equals the wall thickness of desulfurizing tower (2).
3. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: l type landing leg (6) both ends welded fastening respectively is on desulfurizing tower (2) lateral wall and base (1) top, L type landing leg (6) are fixed and are located desulfurizing tower (2) lateral wall middle part upper position at the position of desulfurizing tower (2) lateral wall, three groups L type landing leg (6) circumference equidistant setting is on desulfurizing tower (2) lateral wall, two sets of bracing piece (9) are used base (8) bottom center to set up as symmetrical centrosymmetry.
4. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: liquid suction pipe (12) bottom is close to limestone slurry bucket (4) inner chamber bottom and sets up, transfer line (13) tip is sealed to run through installation crown plate (14) and deep flow cavity (15) inside setting, installation crown plate (14) set up the inner wall position that is close to the top in desulfurizing tower (2) inner chamber, installation crown plate (14) lateral wall and desulfurizing tower (2) inner chamber are sealed fixed the setting, atomizer (16) circumference evenly sets up in installation crown plate (14) bottom.
5. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: the position that inlet tube (20) run through desulfurizing tower (2) is higher than installation crown plate (14) top place plane and is close to desulfurizing tower (2) top setting, the tip part that inlet tube (20) run through desulfurizing tower (2) is deepened in desulfurizing tower (2), the length of liquid level inductor (21) is less than inlet tube (20) and deepens the inside length of desulfurizing tower (2), the position that drain pipe (22) run through desulfurizing tower (2) lateral wall is close to installation crown plate (14) top setting and drain pipe (22) tip and does not surpass desulfurizing tower (2) inner wall.
6. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: the position that conveyer pipe (23) run through oxidation treatment case (5) lateral wall is located oxidation treatment case (5) lateral wall center, conveyer pipe (23) tip and the vertical face that runs through the lateral wall place of oxidation treatment case (5) are same vertical face.
7. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: the length of the rectangular opening (26) is larger than half of the length of the side face of the oxidation treatment box (5) where the rectangular opening is located, the height of the rectangular opening (26) is smaller than half of the height of the oxidation treatment box (5), the height of the hidden groove (27) is larger than the height of the concave groove (28), and the height of the mounting frame (29) is larger than the height of the concave groove (28).
8. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: the horizontal plane of the bottom end of the end part of the reflux pipe (32) penetrating through the side wall of the oxidation treatment box (5) is lower than the horizontal plane of the bottom end of the inner cavity of the oxidation treatment box (5), and the position of the reflux pipe (32) penetrating through the side wall of the limestone slurry barrel (4) is arranged close to the bottom end of the inner cavity of the limestone slurry barrel (4).
9. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: the two ends of the surface wall of the return pipe (32) are provided with one-way valves (34), and the end surface wall of the end part of the drain pipe (22) penetrating through the desulfurizing tower (2) is provided with an electromagnetic valve (35).
10. The energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower as claimed in claim 1, characterized in that: an observation window (36) is arranged on one side wall of the oxidation treatment box (5), and the area of the observation window (36) is larger than half of the area of the side wall of the oxidation treatment box (5) where the observation window is located.
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| CN202010507585.1A CN111617604A (en) | 2020-06-05 | 2020-06-05 | Energy-saving and environment-friendly limestone-gypsum wet flue gas desulfurization tower |
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| CN112717649A (en) * | 2020-12-24 | 2021-04-30 | 倪霄杰 | Anticorrosive durable glass steel desulfurizing tower |
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Application publication date: 20200904 |