CN113105059A - Waste water evaporation and concentration device combining with boiler waste heat dynamic wave and use method - Google Patents
Waste water evaporation and concentration device combining with boiler waste heat dynamic wave and use method Download PDFInfo
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- CN113105059A CN113105059A CN202110544189.0A CN202110544189A CN113105059A CN 113105059 A CN113105059 A CN 113105059A CN 202110544189 A CN202110544189 A CN 202110544189A CN 113105059 A CN113105059 A CN 113105059A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Abstract
The invention relates to the technical field of desulfurization wastewater, and discloses a wastewater evaporation concentration device combining with a boiler waste heat dynamic wave. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave and the use method achieve the recycling of moisture, further improve the economy, simultaneously utilize the dynamic wave effect to greatly increase the mass transfer and heat transfer processes, further enable the concentration speed of the desulfurization waste water to be faster, simultaneously avoid the corrosion and the damage to an exhaust pipeline caused by the direct discharge of steam generated when the desulfurization waste water is concentrated, further improve the service life of the exhaust pipeline, reduce the maintenance and replacement times, and further reduce the cost expenditure.
Description
Technical Field
The invention relates to the technical field of desulfurization wastewater, in particular to a wastewater evaporation and concentration device combining boiler waste heat dynamic wave and a using method.
Background
The desulfurization waste water is mainly the discharge water of an absorption tower in the wet desulfurization (limestone/gypsum method) process of boiler flue gas. In order to maintain the balance of the mass of the slurry circulation system of the desulfurization unit, prevent the soluble fraction of the flue gas, i.e., the chlorine concentration, from exceeding the specified value and ensure the quality of gypsum, a certain amount of waste water must be discharged from the system, which is mainly from the gypsum dewatering and cleaning system. The impurities contained in the wastewater mainly comprise suspended matters, supersaturated sulfite, sulfate and heavy metals, and many of the impurities are the first pollutants which are strictly controlled in the national environmental protection standard.
Most of the conventional desulfurization wastewater concentration methods at present utilize flue gas and desulfurization wastewater to directly contact and evaporate water, the evaporated water is directly discharged through the flue gas, the evaporated water directly enters the flue gas in the flue gas discharge process, the flue corrosion condition exists due to sulfur in the flue gas, the evaporated water directly enters the flue gas, the flue gas volume of a boiler is increased, the system resistance is increased, and the safe and stable operation of the boiler is influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the waste water evaporation and concentration device combining the waste heat dynamic wave of the boiler and the use method thereof, which have the advantages of being capable of filtering and recycling evaporated water and the like, and solve the problems that the flue is corroded, the evaporated water directly enters the flue gas, the smoke gas quantity of the boiler is increased, the system resistance is increased, and the safe and stable operation of the boiler is influenced.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a combine boiler waste heat dynamic wave waste water evaporation concentration device, which comprises a boiler, the right side of boiler is provided with the heat exchange tube, the right side of boiler is provided with the sedimentation tank, the upper end of sedimentation tank is provided with the concentrated tower, the concentrated tower communicates with the inside of sedimentation tank each other, the left side fixedly connected with drain pump of sedimentation tank, the water inlet of drain pump communicates with the inside of sedimentation tank, the upper end fixedly connected with air-supply line of concentrated tower, the air-supply line communicates with the inside of concentrated tower each other, the right-hand member of heat exchange tube communicates with the inside of air-supply line each other, the lower extreme of air-supply line is provided with circulating fan.
Preferably, steam circulating device package moisturizing flushing pipe, moisturizing flushing pipe fixed connection is in the left side of concentrated tower, the right-hand member of moisturizing flushing pipe extends to the inside of concentrated tower, the right-hand member fixedly connected with of moisturizing flushing pipe divides the flow box, divide two outlet pipes of right side fixedly connected with of flow box, the apopore has been seted up on the surface of outlet pipe, fixed surface is connected with the division board on the inside of concentrated tower, the sedimentation tank right side is provided with the circulating pump, the end of intaking of circulating pump communicates with the inside of sedimentation tank each other equally, the play water end fixedly connected with circulating pipe of circulating pump, the circulating pipe extends with the one end of circulating pump.
Preferably, the right side fixedly connected with defroster of reposition of redundant personnel box, the defroster is located between two outlet pipes, and the defroster is located the left side of division board, and the nozzle is located the right side of division board.
Preferably, the left side fixedly connected with return air duct of concentration tower, return air duct's shape is inverted letter "L" shape, and the diaphragm and the riser of return air duct extend to the inside of intake stack, and the inside of return air duct is provided with the condenser.
Preferably, logical groove has been seted up to the diaphragm upper surface of return air pipeline, leads to the inside of groove and return air pipeline and communicates each other, and the inside that leads to the groove is provided with the connecting plate, and the auxiliary tank has all been seted up to the left and right sides that leads to the groove, the equal fixedly connected with spring in auxiliary tank's inside, the spring not with the one end fixedly connected with kelly of auxiliary tank contact, the draw-in groove has all been seted up to the left and right sides of connecting plate, kelly activity joint is in the inside of draw.
Preferably, the lower extreme fixedly connected with filter screen of connecting plate, the inside bottom surface of filter screen and return air duct contacts each other, and the catching groove has been seted up on the left side of connecting plate, and the one end that the kelly does not contact with the spring is the arc.
Preferably, the lower surface of the interior of the sedimentation tank is in a V shape, the lower end of the sedimentation tank is fixedly connected with a drain pipe, and an electromagnetic valve is arranged on the drain pipe.
A method for using a waste water evaporation and concentration device combining with boiler waste heat dynamic waves comprises the following steps:
the first step is as follows: the desulfurization waste water is injected into the interior of a sedimentation tank at the lower part of a concentration tower through a water supplementing flushing pipe, a circulating pump is started, the desulfurization waste water is pumped out and injected into the interior of a circulating pipe by starting the circulating pump, the desulfurization waste water is upwards sprayed out through a nozzle, at the moment, a circulating fan is started, external dry hot air is blown into the interior of an air inlet pipe by the circulating fan, the hot air in the air inlet pipe is blown into the interior of the concentration tower along with the work of the circulating fan and is contacted with a water column sprayed out by the nozzle, and further, the dry hot air and the desulfurization waste water column reach momentum balance, so that a foam area is generated on a necessary path of gas, the foam area is a strong turbulent motion area, the liquid surface is increased and rapidly updated, the mass transfer and;
the second step is that: and then steam and defroster contact, get rid of the liquid drop that contains in to steam through the defroster, and then steam flows into the inside of return air duct, and then contact with the condenser, it dehumidifies to condense it through the condenser that sets up, and then carry out the pressure boost and pour into the inside of heat exchanger through circulating fan to steam, and then utilize the flue gas waste heat that the boiler produced to carry out intensification once more to steam, and then the inside of entering the concentrated tower once more along with circulating fan's work of the later circulation steam that intensifies, and then accomplish the recycling of steam, close the circulating pump after desulfurization waste water is concentrated to the specified degree, open the drain pump and discharge concentrated waste water.
(III) advantageous effects
Compared with the prior art, the invention provides a waste water evaporation and concentration device combined with boiler waste heat dynamic wave and a use method thereof, and the device has the following beneficial effects:
1. the waste water evaporation and concentration device combining with the boiler waste heat dynamic wave and the use method thereof are characterized in that desulfurization waste water is injected into the interior of a sedimentation tank at the lower part of a concentration tower through an arranged water replenishing flushing pipe, the desulfurization waste water is upwards sprayed out through a nozzle by starting a circulating pump, external dry hot air is blown into the interior of an air inlet pipeline by a circulating fan, so that the dry hot air and a desulfurization waste water column reach momentum balance, a foam area is generated on a necessary path of gas, the foam area is a strong turbulent motion area, the liquid surface area is increased and rapidly updated, a large amount of steam is further formed, the steam is contacted with a demister, liquid drops contained in the steam are removed through the demister, the steam flows into the interior of a return air pipeline to be contacted with a condenser, the condenser condenses and dehumidifies the steam, the circulating fan pressurizes the steam and injects the steam into the interior of a, and then utilize the flue gas waste heat that the boiler produced to heat up steam once more, the inside of concentrating the tower is entered into once more along with circulating fan's work to the circulating steam after the intensification, and then accomplish the cyclic utilization of steam, thereby reach the recovery of moisture content and recycle, and then improve the economic nature, but utilize dynamic wave effect greatly increased mass transfer heat transfer process simultaneously, and then make desulfurization waste water concentration speed faster, avoid simultaneously carrying out the direct discharge of steam that produces when concentrating desulfurization waste water and cause corruption and damage to exhaust duct, and then improve exhaust duct's life, reduce the number of times of maintenance and change, and then reduce the expenditure of cost.
2. This combine boiler waste heat dynamic wave waste water evaporation concentration device and application method, through the filter screen that sets up, and then when steam is when getting into the inside of return air pipeline, the net of coming can carry out coming of certain degree to steam, and then filter the sulphur that contains in the steam, and then avoid long-term use in-process steam that contains sulphur to cause the corruption to return air pipeline and condenser and circulating fan, and then improve return air pipeline and condenser and circulating fan's life, and then reduce the number of times of maintenance and change, and then reduce the expenditure of cost, guarantee simultaneously that the device can normal use.
3. The waste water evaporation and concentration device combining with the boiler waste heat dynamic wave and the use method thereof are movably clamped in the through groove through the arranged connecting plate, when the filter screen needs to be cleaned and replaced, the connecting plate is further lifted upwards through the arranged buckling groove, the connecting plate is forced to move upwards, the clamping rod is forced to slide out from the inside of the clamping groove, the spring is forced to contract when the clamping rod slides out, when the clamping rod is completely separated from the clamping groove, the connecting plate is continuously pulled upwards until the net is completely separated from the return air pipeline, thereby cleaning and replacing the filter screen and further ensuring the filtering effect of the filter screen, through the connecting plate can be convenient pull out and then reduce the degree of difficulty of filter screen clearance and change from the inside in logical groove, and then reduce operating personnel's intensity of labour, and then improve the efficiency of clearance and change.
4. This combine boiler waste heat dynamic wave waste water evaporation concentration device and application method, through setting up the defroster between two outlet pipes, and then when pouring into desulfurization waste water into to the concentration tower is inside, desulfurization waste water can effectually wash the defroster, and then avoid the long-term adhesion of the adhesion thing that contains in the steam to cause the damage to the defroster on the defroster, guarantee simultaneously that the defroster gets rid of the effect of dropping liquid, and then guarantee the operation that the device can be normal.
5. This combine boiler waste heat dynamic wave waste water evaporation concentration device and application method, the inside lower extreme through the sedimentation tank that sets up is "V" font, and then the impurity that contains in the desulfurization waste water can obtain fine sediment, and then the impurity of sediment is got rid of through the blow off pipe, and then avoids the impurity to cause the damage to circulating pump and drain pump, and then improves its life, reduces the number of times of change and maintenance, guarantees simultaneously that the device can normal operating.
Drawings
FIG. 1 is a schematic structural view of a waste water evaporation and concentration device combining with a boiler waste heat dynamic wave of the present invention;
FIG. 2 is a schematic front view of a concentrating tower structure according to the present invention;
FIG. 3 is a schematic front view of the sedimentation tank structure of the present invention;
FIG. 4 is a schematic front view of the return air duct structure of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention.
In the figure: the device comprises a boiler 1, heat exchange tubes 2, a water replenishing flushing tube 3, an air inlet tube 4, a concentration tower 5, a sedimentation tank 6, a water draining pump 7, a flow dividing box 8, an air return pipeline 9, a condenser 10, a circulating fan 11, a partition plate 12, a water outlet tube 13, a demister 14, a nozzle 15, a circulating tube 16, a circulating pump 17, a sewage discharge tube 18, an electromagnetic valve 19, a filter screen 20, a connecting plate 21, a catching groove 22, a catching groove 23, a through groove 24, a clamping rod 25, an auxiliary groove 26 and a spring 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Referring to fig. 1-5, the present invention provides a new technical solution: the utility model provides a combine boiler waste heat dynamic wave waste water evaporation enrichment facility, including boiler 1, the right side of boiler 1 is provided with heat exchange tube 2, heat exchange tube 2 does not do too much to describe here for current structure, the right side of boiler 1 is provided with sedimentation tank 6, the upper end of sedimentation tank 6 is provided with concentration tower 5, concentration tower 5 communicates with each other with the inside of sedimentation tank 6, the left side of sedimentation tank 6 is fixedly connected with drain pump 7, the water inlet of drain pump 7 communicates with the inside of sedimentation tank 6, the upper end fixedly connected with air-supply line 4 of concentration tower 5, air-supply line 4 communicates with the inside of concentration tower 5, the right-hand member of heat exchange tube 2 communicates with the inside of air-supply line 4 each other, the lower extreme of air-supply line 4 is provided with circulating fan 11, circulating fan 11 does not do too much to describe here for current structure, the inside;
the steam circulating device comprises a water replenishing flushing pipe 3, the water replenishing flushing pipe 3 is fixedly connected to the left side of a concentration tower 5, the right end of the water replenishing flushing pipe 3 extends into the concentration tower 5, the right end of the water replenishing flushing pipe 3 is fixedly connected with a flow dividing box 8, the right side of the flow dividing box 8 is fixedly connected with two water outlet pipes 13, water outlet holes are formed in the surfaces of the water outlet pipes 13, the right side of the flow dividing box 8 is fixedly connected with a demister 14, the demister 14 is positioned between the two water outlet pipes 13, the demister 14 is an existing structure and is not described in detail herein, a partition plate 12 is fixedly connected to the upper surface in the concentration tower 5, a circulating pump 17 is arranged on the right side of a sedimentation tank 6, the water inlet end of the circulating pump 17 is also communicated with the interior of the sedimentation tank 6, the water outlet end of the circulating pump 17 is fixedly connected with a circulating pipe 16, one end of the circulating, the demister 14 is located on the left side of the partition plate 12, the nozzle 15 is located on the right side of the partition plate 12, the left side of the concentration tower 5 is fixedly connected with the return air pipeline 9, the return air pipeline 9 is in an inverted letter L shape, a transverse plate and a vertical plate of the return air pipeline 9 extend into the air inlet pipeline 4, the inside of the return air pipeline 9 is provided with the condenser 10, and the condenser 10 is an existing structure and is not described in detail herein;
a through groove 24 is formed in the upper surface of a transverse plate of the return air pipeline 9, the through groove 24 is communicated with the inside of the return air pipeline 9, a connecting plate 21 is arranged in the through groove 24, auxiliary grooves 26 are formed in the left side and the right side of the through groove 24, springs 27 are fixedly connected in the auxiliary grooves 26, clamping rods 25 are fixedly connected to the ends, not in contact with the auxiliary grooves 26, of the springs 27, the ends, not in contact with the springs 27, of the clamping rods 25 are arc-shaped, clamping grooves 23 are formed in the left side and the right side of the connecting plate 21, the clamping rods 25 are movably clamped in the clamping grooves 23, buckling grooves 22 are formed in the left side of the connecting plate 21, a filter screen 20 is fixedly connected to the lower end of the connecting plate;
the lower surface of the interior of the sedimentation tank 6 is in a V shape, the lower end of the sedimentation tank 6 is fixedly connected with a blow-off pipe 18, and the blow-off pipe 18 is provided with an electromagnetic valve 19.
A method for using a waste water evaporation and concentration device by combining with boiler waste heat dynamic waves;
the first step is as follows: injecting desulfurization wastewater into the interior of a sedimentation tank 6 at the lower part of a concentration tower 5 through a water supplementing flushing pipe 3, starting a circulating pump 17, pumping the desulfurization wastewater out by starting the circulating pump 17, injecting the desulfurization wastewater into the interior of a circulating pipe 16, upwards spraying the desulfurization wastewater through a nozzle 15, starting a circulating fan 11 at the moment, blowing external dry hot air into an air inlet pipe 4 by the circulating fan 11, blowing the hot air in the air inlet pipe 4 into the interior of the concentration tower 5 along with the work of the circulating fan 11 and making the hot air and a water column sprayed by the nozzle 15 contact with each other, so that the dry hot air and the desulfurization wastewater water column reach momentum balance, a foam area is generated on a necessary path of gas, the foam area is a strong turbulent motion area, the liquid surface area is increased and rapidly updated, the mass and heat transfer processes are enhanced, and a large amount of steam is;
the second step is that: then the steam contacts with the demister 14, liquid drops contained in the steam are removed through the demister 14, then the steam flows into the inside of the air return pipeline 9 and further contacts with the condenser 10, the steam is condensed and dehumidified through the arranged condenser 10, then the steam is pressurized and injected into the inside of the heat exchanger 2 through the circulating fan 11, then the steam is heated again through the waste heat of the flue gas generated by the boiler 1, then the circulating steam after being heated enters the inside of the concentration tower 5 again along with the work of the circulating fan 11, further the recycling of the steam is completed, when the desulfurization wastewater is concentrated to a specified degree, the circulating pump 17 is closed, and the drain pump 7 is opened to discharge the concentrated wastewater.
The utility model provides a combine boiler waste heat dynamic wave waste water evaporation concentration device theory of operation:
the first step is as follows: the desulfurization waste water can be injected into the interior of the sedimentation tank 6 at the lower part of the concentration tower 5 through the arranged water replenishing flushing pipe 3, then the circulating pump 17 is started, and then the desulfurization waste water is pumped out and injected into the circulating pipe 16 by the starting of the circulating pump 17, and then is sprayed upwards through the nozzle 15, at this time, the circulating fan 11 is started, and then the circulating fan 11 blows external dry hot air into the interior of the air inlet duct 4, and then the hot air in the air inlet pipe 4 is blown into the interior of the concentration tower 5 along with the operation of the circulating fan 11 and contacts with the water column sprayed from the nozzle 15, thereby leading the dry hot air and the water column of the desulfurization waste water to achieve momentum balance, generating a foam area on the necessary path of the gas, the region is a strong turbulent region, the liquid surface area is increased and rapidly updated, the mass and heat transfer process is enhanced, and a large amount of steam is formed;
the second step is that: then the steam contacts with the demister 14, and then liquid drops contained in the steam are removed through the demister 14, and then the steam flows into the inside of the return air pipeline 9 and further contacts with the condenser 10, and is condensed and dehumidified through the arranged condenser 10, and then the steam is pressurized through the circulating fan 11 and is injected into the inside of the heat exchanger 2, so that the steam is heated again by using the waste heat of the flue gas generated by the boiler 1, and then the circulating steam after being heated enters the inside of the concentration tower 5 again along with the work of the circulating fan 11, thereby completing the recycling of the steam, further achieving the recycling of moisture, further improving the economy, and simultaneously greatly increasing the mass and heat transfer process by using the dynamic wave effect, further enabling the concentration speed of the desulfurization wastewater to be faster, and simultaneously avoiding the corrosion and damage to the exhaust pipeline caused by the direct discharge of the steam generated when the desulfurization wastewater is concentrated, further prolonging the service life of the exhaust pipeline, reducing the times of maintenance and replacement, further closing the circulating pump 17 after the desulfurization wastewater is concentrated to a specified degree, and opening the drainage pump 7 to discharge the concentrated wastewater;
the third step: through the arranged filter screen 20, when steam enters the air return pipeline 9, the coming network 20 can come the steam to a certain degree, so that sulfur contained in the steam is filtered, further the corrosion of the steam containing sulfur to the air return pipeline 9, the condenser 10 and the circulating fan 11 in the long-term use process is avoided, the service lives of the air return pipeline 9, the condenser 10 and the circulating fan 11 are prolonged, the maintenance and replacement times are reduced, the cost is reduced, and meanwhile, the normal use of the device is ensured;
a fourth step of: the connecting plate 21 is movably clamped inside the through groove 24, and when the filter screen 20 needs to be cleaned and replaced, the connecting plate 21 is lifted upwards through the arranged buckle groove 22, the connecting plate 21 moves upwards under stress, the clamping rod 25 slides out of the clamping groove 23 under stress, at the moment, the spring 27 is contracted under stress when the clamping rod 25 slides out, and when the clamping rod 25 completely breaks away from the clamping groove 23, the connecting plate 21 is continuously pulled upwards until the whole filter screen 20 is separated from the return air pipeline 9, so that the filter screen 20 can be cleaned and replaced, the filtering effect of the filter screen 20 is ensured, the connecting plate 21 can be conveniently pulled out of the through groove 24, the cleaning and replacing difficulty of the filter screen 20 is reduced, the labor intensity of operators is reduced, and the high cleaning and replacing efficiency is improved;
the fifth step: through setting up defroster 14 between two outlet pipes 13, and then when pouring into desulfurization waste water to the concentration tower 5 is inside, desulfurization waste water can be effectual wash defroster 14, and then avoid the adhesion that contains in the steam to bond for a long time and cause the damage on defroster 14 to defroster 14, guarantee the effect that the dropping liquid was got rid of to defroster 14 simultaneously, and then guarantee the operation that the device can be normal, the inside lower extreme through sedimentation tank 6 that sets up is "V" font, and then the impurity that contains in the desulfurization waste water can obtain fine sediment, and then the impurity of sediment is got rid of through blow off pipe 18, and then avoid the impurity to cause the damage to circulating pump 17 and drain pump 7, and then improve its life, reduce the number of times of change and maintenance, guarantee simultaneously that the device can normal operating.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a combine boiler waste heat dynamic wave waste water evaporation concentration device, includes boiler (1), its characterized in that: the utility model discloses a boiler, including boiler (1), the right side of boiler (1) is provided with heat exchange tube (2), the right side of boiler (1) is provided with sedimentation tank (6), the upper end of sedimentation tank (6) is provided with concentrated tower (5), the inside of concentrated tower (5) and sedimentation tank (6) communicates each other, the left side fixedly connected with drain pump (7) of sedimentation tank (6), the water inlet of drain pump (7) and the inside intercommunication of sedimentation tank (6), the upper end fixedly connected with air-supply line (4) of concentrated tower (5), air-supply line (4) and the inside of concentrated tower (5) communicate each other, the right-hand member of heat exchange tube (2) and the inside of air-supply line (4) communicate each other, the lower extreme of air-supply line (4) is provided with circulating fan (11), the inside of concentrated.
2. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 1, wherein: steam circulating device package moisturizing flushing pipe (3), moisturizing flushing pipe (3) fixed connection is in the left side of concentrated tower (5), the right-hand member of moisturizing flushing pipe (3) extends to the inside of concentrated tower (5), the right-hand member fixedly connected with of moisturizing flushing pipe (3) divides flow box (8), two outlet pipes (13) of the right side fixedly connected with of dividing flow box (8), the apopore has been seted up on the surface of outlet pipe (13), fixed surface is connected with division board (12) on the inside of concentrated tower (5), sedimentation tank (6) right side is provided with circulating pump (17), the end of intaking of circulating pump (17) is the same communicates each other with the inside of sedimentation tank (6), the play water end fixedly connected with circulating pipe (16) of circulating pump (17), the one end of circulating pipe (16) and circulating pump (17) contact extends to the inside of concentrated tower (5), circulating pipe (16) are located the fixed surface of concentrated tower (5) inside and are connected with nozzle (.
3. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 2, wherein: the right side of the flow dividing box (8) is fixedly connected with a demister (14), the demister (14) is positioned between the two water outlet pipes (13), the demister (14) is positioned on the left side of the partition plate (12), and the nozzle (15) is positioned on the right side of the partition plate (12).
4. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 1, wherein: the left side fixedly connected with return air duct (9) of concentrated tower (5), the shape of return air duct (9) is inverted letter "L" shape, and the diaphragm and the riser of return air duct (9) extend to the inside of intake stack (4), and the inside of return air duct (9) is provided with condenser (10).
5. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 4, wherein: lead to groove (24) has been seted up to the diaphragm upper surface of return air pipeline (9), lead to the inside intercommunication each other of groove (24) and return air pipeline (9), the inside that leads to groove (24) is provided with connecting plate (21), supplementary groove (26) have all been seted up to the left and right sides that leads to groove (24), the equal fixedly connected with spring (27) in inside in supplementary groove (26), spring (27) do not have one end fixedly connected with kelly (25) with supplementary groove (26) contact, draw-in groove (23) have all been seted up to the left and right sides of connecting plate (21), kelly (25) activity joint is in the inside of draw-in groove (23).
6. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 5, wherein: the lower end of the connecting plate (21) is fixedly connected with a filter screen (20), and the filter screen (20) is in contact with the inner bottom surface of the return air pipeline (9).
7. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 5, wherein: and a buckle groove (22) is formed in the left side of the connecting plate (21).
8. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 5, wherein: one end of the clamping rod (25) which is not contacted with the spring (27) is arc-shaped.
9. The waste water evaporation and concentration device combining the boiler waste heat dynamic wave as claimed in claim 1, wherein: the lower surface of the interior of the sedimentation tank (6) is in a V shape, the lower end of the sedimentation tank (6) is fixedly connected with a drain pipe (18), and an electromagnetic valve (19) is arranged on the drain pipe (18).
10. The use method of the waste water evaporation and concentration device combined with the boiler waste heat dynamic wave as claimed in claim 2, wherein the method comprises the following steps:
the first step is as follows: the desulfurization waste water is injected into the interior of a sedimentation tank (6) at the lower part of a concentration tower (5) through a water supplementing flushing pipe (3), a circulating pump (17) is started, the desulfurization waste water is pumped out and injected into the interior of a circulating pipe (16) by starting the circulating pump (17), the desulfurization waste water is upwards sprayed through a nozzle (15), at the moment, a circulating fan (11) is started, external dry hot air is blown into the interior of an air inlet pipeline (4) by the circulating fan (11), the hot air in the interior of the air inlet pipeline (4) is blown into the interior of the concentration tower (5) along with the work of the circulating fan (11) and is contacted with a water column sprayed by the nozzle (15), and further the dry hot air and the desulfurization waste water column reach a momentum balance, so that a foam area is generated on a necessary path of gas, the foam area is a strong turbulent motion area, the liquid surface area is increased and rapidly updated, thereby forming a large amount of steam;
the second step is that: and then the steam contacts with a demister (14), liquid drops contained in the steam are removed through the demister (14), the steam flows into the inside of the air return pipeline (9) and then contacts with a condenser (10), the steam is condensed and dehumidified through the arranged condenser (10), the steam is pressurized through a circulating fan (11) and is injected into the inside of a heat exchanger (2), the steam is heated again through the waste heat of flue gas generated by a boiler (1), the circulating steam after being heated enters the inside of a concentration tower (5) again along with the operation of the circulating fan (11), the cyclic utilization of the steam is completed, the circulating pump (17) is closed after the desulfurization wastewater is concentrated to a specified degree, and the concentrated wastewater is discharged by opening a drainage pump (7).
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| CN211600774U (en) * | 2019-12-23 | 2020-09-29 | 青岛华泰电力设备有限公司 | Novel boiler auxiliary assembly |
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| US20140248201A1 (en) * | 2011-09-30 | 2014-09-04 | Alfa Laval Corporate Ab | Scrubber system and method |
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| CN211600774U (en) * | 2019-12-23 | 2020-09-29 | 青岛华泰电力设备有限公司 | Novel boiler auxiliary assembly |
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