CN114590858A - Novel vertical three-phase evaporative separator for desulfurization waste liquid - Google Patents
Novel vertical three-phase evaporative separator for desulfurization waste liquid Download PDFInfo
- Publication number
- CN114590858A CN114590858A CN202210358278.0A CN202210358278A CN114590858A CN 114590858 A CN114590858 A CN 114590858A CN 202210358278 A CN202210358278 A CN 202210358278A CN 114590858 A CN114590858 A CN 114590858A
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- Prior art keywords
- waste liquid
- flue gas
- barrel
- separator
- cylinder
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Classifications
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
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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 belongs to the technical field of evaporation separation, and relates to a novel vertical three-phase evaporation separator for desulfurization waste liquid. The novel spiral scraper separator comprises a cylindrical barrel, waste liquid and flue gas inlet pipeline, drive pivot and flue gas outlet pipe, the barrel adopts cylindrical structure, the barrel top is provided with the motor, the coaxial fixed connection of output shaft of drive pivot top and motor, waste liquid and flue gas inlet pipeline set up in the upper portion of barrel lateral wall, waste liquid and flue gas inlet pipeline and the tangent intercommunication of barrel and the slope sets up downwards, flue gas outlet pipe and barrel top intercommunication set up, drive pivot bottom is connected with ejection of compact scraper blade, the discharge gate has been seted up to the barrel bottom, be equipped with the spiral scraper in the barrel, spiral scraper laminating barrel lateral wall sets up, scraper bracing piece and drive pivot fixed connection are passed through to the spiral scraper inboard, this separator has the cost low, the running cost is low, the characteristics that the fault rate is few, be fit for extensive popularization. The invention is mainly applied to the evaporation separation of the desulfurization waste liquid or other high-salt waste liquids.
Description
Technical Field
The invention belongs to the technical field of evaporation separation, and relates to a novel vertical three-phase evaporation separator for desulfurization waste liquid.
Background
At present, the desulfurization wastewater treatment process mainly adopts a multi-effect evaporation tower, and the working principle is as follows: maintaining negative pressure in the evaporating tower to lower latent heat of vaporization of water; secondly, a heat source is provided for one-effect evaporation by using the waste heat of the steam or the flue gas, and the evaporation process adopts a multi-effect evaporation energy cascade utilization technology, so that the energy consumption of the system is reduced; thirdly, after multi-effect evaporation, the solid content of the concentrated solution is about 50 to 55 percent, and the concentrated solution enters a subsequent unit for treatment;
the multi-effect evaporation tower can improve the solid content of the waste liquid to 50-55 percent, saves a large amount of evaporation heat for the subsequent treatment of the waste liquid, and has great improvement compared with the prior evaporation tower. But there are many disadvantages at the same time: firstly, the manufacturing cost is high; secondly, the interior of the evaporation tower is easy to block, and long-term stable operation is not facilitated; and thirdly, the treated concentrated solution needs a large amount of hot flue gas to be evaporated to dryness, so that the unit efficiency is reduced.
Disclosure of Invention
The invention overcomes the defects in the prior art and provides a vertical three-phase evaporation separator for carrying out evaporation separation on waste liquid by using the waste heat of the flue gas at the tail part of a boiler.
In order to solve the technical problems, the invention adopts the technical scheme that:
the novel vertical three-phase evaporative separator for the desulfurization waste liquid comprises a barrel, a waste liquid and flue gas inlet pipeline, a driving rotating shaft and a flue gas outlet pipe, wherein the barrel is of a cylindrical structure, a motor is arranged at the top of the barrel and is arranged at the central position of the top of the barrel, the top of the driving rotating shaft is coaxially and fixedly connected with an output shaft of the motor, the bottom of the driving rotating shaft is rotatably connected with the bottom of the barrel, the waste liquid and flue gas inlet pipeline is arranged at the upper part of the side wall of the barrel, the waste liquid and flue gas inlet pipeline is tangentially communicated with the barrel and obliquely and downwards arranged, the flue gas outlet pipe is communicated with the top of the barrel, one side of the flue gas outlet pipe, which is far away from the barrel, is connected with a suction fan, the bottom of the driving rotating shaft is connected with a discharging scraper, the discharging scraper is attached to the bottom of the barrel, a discharging port is arranged at the bottom of the barrel, and a spiral scraper is arranged in the barrel, the spiral scraper is attached to the side wall of the cylinder body, and the inner side of the spiral scraper is fixedly connected with the driving rotating shaft through the scraper supporting rod.
The waste liquid and flue gas inlet pipelines are arranged in two groups, and the two waste liquid and flue gas inlet pipelines are arranged on two sides of the barrel at the same height in a staggered mode.
And the waste liquid and flue gas inlet pipeline is communicated with an atomizer nozzle.
The cyclone plate demister is arranged in the barrel, the outer edge of the cyclone plate demister is fixedly connected with the inner side wall of the barrel, and the height of the cyclone plate demister is arranged between the waste liquid and flue gas inlet pipeline and the flue gas outlet pipe.
The cyclone separator is characterized in that a separator center barrel is arranged in the barrel body, the separator center barrel is of a cylindrical structure with an upper opening and a lower opening, the separator center barrel and the rotating shaft are coaxially arranged, and the height of the upper opening of the separator center barrel is arranged between the waste liquid and flue gas inlet pipeline and the cyclone plate demister.
The outer wall of a separator center section of thick bamboo is fixed with the division board, the division board adopts annular structure, the outward flange and the barrel inner wall fixed connection of division board, the division board adopts ring annular structure, and a plurality of delivery ports have been seted up along circumference equidistance to the outward flange of division board.
The height of the inner edge of the separation plate is higher than that of the outer edge.
The bottom of the barrel is provided with a base bearing at the center, and the bottom end of the driving rotating shaft is fixedly connected with the base bearing.
And a reinforcing plate is arranged between the driving rotating shaft and the discharging scraper.
The discharge hole is of a rectangular opening structure.
Compared with the prior art, the invention has the beneficial effects that:
1. the atomizer nozzle can atomize the desulfurization waste liquid into fine fog drop groups, so that the surface area of the desulfurization waste liquid is increased, and the efficient heat exchange between the desulfurization waste liquid and low-temperature flue gas is accelerated.
2. The cyclone plate demister can capture and collect large-particle-size fog drops carried in smoke, so that the smoke discharged from the smoke outlet pipe is kept dry.
3. The invention utilizes the characteristic of high viscosity of the multi-salt mixture in the desulfurization wastewater after crystallization, and moves around and is adhered to the inner wall of the separator under the centrifugal force action of the rotary separator.
4. The spiral scraper is driven by a motor to rotate, so that the crystalline solid adhered to the inner side wall of the cylinder body is scraped and falls to the bottom of the separator, and then the crystalline solid is scraped to a discharge hole by the rotary scraper and discharged, so that the separator keeps continuous operation.
5. According to the invention, the central cylinder and the partition plate of the separator are combined, smoke rises along the central cylinder of the separator after heat exchange is completed, the cyclone plate demister can capture and collect large-particle-size fog drops in the smoke, separated liquid flows into the separator along the partition plate for recycling, and the smoke is discharged from a smoke outlet.
The device has the advantages of high separation efficiency, low manufacturing cost, low operation cost, low use failure rate, long-term continuous operation and suitability for wide popularization and application.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic front perspective view of the present invention;
FIG. 3 is a schematic top perspective view of the present invention;
FIG. 4 is a schematic view of a bottom portion of the cartridge of the present invention;
in the figure: 1 is the barrel, 2 is the motor, 3 is waste liquid and flue gas entry pipeline, 4 is the drive pivot, 5 is the atomizer nozzle, 6 is the flue gas outlet pipe, 7 is the whirl board defroster, 8 is the spiral scraper, 9 is the scraper bracing piece, 10 is separator center section of thick bamboo, 11 is the base bearing, 12 is ejection of compact scraper blade, 13 is the discharge gate, 14 is the reinforcing plate, 15 is the division board, 16 is the delivery port.
Detailed Description
As shown in fig. 1 to 4, the novel vertical three-phase evaporative separator for desulfurization waste liquid comprises a cylinder 1, a waste liquid and flue gas inlet pipeline 3, a driving rotating shaft 4 and a flue gas outlet pipe 6, wherein the cylinder 1 is of a cylindrical structure, the motor 2 is arranged at the top of the cylinder 1, the motor 2 is arranged at the central position of the top of the cylinder 1, the top of the driving rotating shaft 4 is coaxially and fixedly connected with an output shaft of the motor 2, the bottom of the driving rotating shaft 4 is rotatably connected with the bottom of the cylinder 1, namely, the driving rotating shaft 4 can rotate under the driving of the output shaft of the motor 2 and does a rotating motion around the axis in the cylinder 1, the waste liquid and flue gas inlet pipeline 3 is arranged at the upper part of the side wall of the cylinder 1, the waste liquid and flue gas inlet pipeline 3 is arranged at the upper part of the middle part of the cylinder 1, the waste liquid and flue gas inlet pipeline 3 is tangentially communicated with the cylinder 1 and is arranged obliquely downwards, and the waste liquid and flue gas inlet pipeline 3 is arranged to enable gas injected into the cylinder to spirally move downwards along the inner wall of the cylinder 1, flue gas outlet pipe 6 and the setting of 1 top intercommunication of barrel, one side that flue gas outlet pipe 6 kept away from barrel 1 is connected with the suction fan, under the effect of suction fan, flue gas in the barrel 1 is discharged by flue gas outlet pipe 6, drive pivot 4 bottoms are connected with ejection of compact scraper blade 12, ejection of compact scraper blade 12 sets up with the laminating of 1 bottom surface of barrel, the diameter of ejection of compact scraper blade 12 matches the setting with the diameter of 1 inner wall of barrel, discharge gate 13 has been seted up to 1 bottom of barrel, be provided with spiral scraper 8 in the barrel 1, 8 lateral walls of spiral scraper laminating barrel set up, spiral scraper 8 is anticlockwise heliciform, 8 inboards of spiral scraper are through scraper bracing piece 9 and 4 fixed connection of drive pivot, 8 inboards of spiral scraper are provided with a plurality of scraper bracing pieces 9 of being connected with drive pivot 4.
Preferably, the spiral scraper is in a counterclockwise spiral shape and is consistent with a gas rotating path in the cylinder, and the spiral scraper can play a role in guiding flow in a static state and strengthen the three-phase separation of solid, liquid and gas; when the device is in a dynamic state, the salt mixture adhered to the inner wall of the evaporation separator can be removed.
Preferably, waste liquid and flue gas inlet pipeline 3 is provided with two sets ofly, and two waste liquid and flue gas inlet pipeline 3 misplace the setting in barrel 1 both sides of same height. Two groups of waste liquid and flue gas inlet pipelines 3 are blown into the cylinder body 1 along the anticlockwise direction.
Preferably, an atomizer nozzle 5 is communicated with the waste liquid and flue gas inlet pipeline 3. Atomizer nozzle 5 and waste liquid intercommunication spout waste liquid and flue gas inlet pipeline 3 with the waste liquid atomizing after, and waste liquid and flue gas inlet pipeline 3 communicate with the low temperature flue gas pipeline of boiler, utilize low temperature flue gas to carry out hybrid heating to the waste liquid.
Preferably, be provided with whirl plate defroster 7 in the barrel 1, whirl plate defroster 7 outward flange and barrel 1's inside wall fixed connection, whirl plate defroster 7 highly set up between waste liquid and flue gas inlet pipeline 3 and flue gas outlet pipe 6.
Preferably, a separator center cylinder 10 is arranged in the cylinder body 1, the separator center cylinder 10 is of a cylindrical structure with an upper opening and a lower opening, the separator center cylinder 10 is coaxially arranged with the rotating shaft, and the height of the upper opening of the separator center cylinder 10 is arranged between the waste liquid and flue gas inlet pipeline 3 and the swirl plate demister 7.
Preferably, the outer wall of a separator center tube 10 is fixed with a partition plate 15, the partition plate 15 adopts an annular structure, the outer edge of the partition plate 15 is fixedly connected with the inner wall of the tube body 1, the partition plate 15 adopts an annular structure, and a plurality of water outlets 16 are formed in the outer edge of the partition plate 15 along the circumference at equal intervals.
Preferably, the height of the inner edge of the partition plate 15 is higher than the height of the outer edge. The centre to the edge of the partition 15 is sloped.
Preferably, the bottom of the cylinder 1 is provided with a base bearing 11 at the central position, and the bottom end of the driving rotating shaft 4 is fixedly connected with the base bearing 11.
Preferably, a reinforcing plate 14 is arranged between the driving rotating shaft 4 and the discharging scraper 12. Reinforcing plate 14 is right triangle structural slab, and two right-angle sides of reinforcing plate 14 have strengthened the wholeness between drive pivot 4 and the ejection of compact scraper blade 12 with drive pivot 4 and ejection of compact scraper blade 12 fixed connection respectively.
Preferably, the discharge hole 13 has a rectangular opening structure.
The working process of the invention is as follows: the atomizer nozzle 5 atomizes the waste liquid into fine fog drop groups, so that the surface area of the waste liquid is greatly increased, the fine fog drop groups are fully mixed with low-temperature flue gas (125-145 ℃) (mixed heat exchange) and then enter the separator cylinder 1 tangentially, the fog drops of the waste water are heated and then are vaporized rapidly in the separator cylinder 1, various dissolved salts are crystallized into a salt mixture, and the salt mixture moves downwards spirally under the action of centrifugal force and gravity and is adhered to the cylinder wall of the separator cylinder 1; regularly start motor 2, it is rotatory to drive spiral scraper 8, the thick form solid that will bond on 1 section of thick bamboo wall of barrel is scraped and is scraped off, fall in the bottom of separator barrel 1, then under ejection of compact scraper blade 12's effect, discharge gate 13 from the bottom discharges, flue gas outlet pipe 6 is connected with the suction fan, flue gas after the heat transfer and the vapor that desulfurization waste water evaporation came out are under the effect of suction fan, upward movement along separator center tube 10, discharge from flue gas outlet pipe 6 after 7 defogging of whirl board defroster by the suction fan. The fog drops removed by the whirl plate demister 7 flow downwards along the inner wall of the cylinder body 1 and fall into the inner bottom surface of the cylinder body 1 after passing through the water outlet 16.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. Novel vertical three evaporative separator of desulfurization waste liquid, its characterized in that: comprises a cylinder body (1), a waste liquid and flue gas inlet pipeline (3), a driving rotating shaft (4) and a flue gas outlet pipe (6), wherein the cylinder body (1) adopts a cylindrical structure, a motor (2) is arranged at the top of the cylinder body (1), the motor (2) is arranged at the central position of the top of the cylinder body (1), the top of the driving rotating shaft (4) is coaxially and fixedly connected with an output shaft of the motor (2), the bottom of the driving rotating shaft (4) is rotatably connected with the bottom of the cylinder body (1), the waste liquid and flue gas inlet pipeline (3) is arranged at the upper part of the side wall of the cylinder body (1), the waste liquid and flue gas inlet pipeline (3) is tangentially communicated with the cylinder body (1) and is obliquely and downwards arranged, the flue gas outlet pipe (6) is communicated with the top of the cylinder body (1), one side of the flue gas outlet pipe (6) far away from the cylinder body (1) is connected with a suction fan, the bottom of the driving rotating shaft (4) is connected with a discharging scraper (12), ejection of compact scraper blade (12) and barrel (1) bottom surface laminating setting, discharge gate (13) have been seted up to barrel (1) bottom, be provided with spiral scraper (8) in barrel (1), spiral scraper (8) laminating barrel (1) lateral wall sets up, and spiral scraper (8) inboard is through scraper bracing piece (9) and drive pivot (4) fixed connection.
2. The vertical three-phase evaporative separator for desulfurization waste liquid as claimed in claim 1, wherein the waste liquid and flue gas inlet pipes (3) are arranged in two groups, and the two waste liquid and flue gas inlet pipes (3) are arranged in a staggered manner at two sides of the same height of the cylinder (1).
3. The vertical three-phase evaporative separator for desulfurization waste liquid as claimed in claim 1, wherein an atomizer nozzle (5) is connected to the inlet pipeline (3) for waste liquid and flue gas.
4. The vertical evaporative separator for desulfurization waste liquid as claimed in claim 1, wherein a cyclone plate demister (7) is arranged in the cylinder (1), the outer edge of the cyclone plate demister (7) is fixedly connected with the inner side wall of the cylinder (1), and the height of the cyclone plate demister (7) is arranged between the waste liquid and flue gas inlet pipeline (3) and the flue gas outlet pipe (6).
5. The novel vertical three-phase evaporative separator for desulfurization waste liquid as claimed in claim 4, wherein a separator central cylinder (10) is arranged in the cylinder body (1), the separator central cylinder (10) is of a cylindrical structure with an upper opening and a lower opening, the separator central cylinder (10) is arranged coaxially with the driving rotating shaft (4), and the height of the upper opening of the separator central cylinder (10) is arranged between the waste liquid and flue gas inlet pipeline (3) and the swirl plate demister (7).
6. The novel vertical three-phase evaporative separator for desulfurization waste liquid as claimed in claim 5, wherein a partition plate (15) is fixed on the outer wall of the central cylinder (10) of the separator, the partition plate (15) is of an annular structure, the outer edge of the partition plate (15) is fixedly connected with the inner wall of the cylinder body (1), the partition plate (15) is of an annular structure, and a plurality of water outlets (16) are formed in the outer edge of the partition plate (15) at equal intervals along the circumference.
7. The vertical three-phase evaporative separator for desulfurization waste liquid according to claim 6, characterized in that the height of the inner edge of the partition plate (15) is higher than that of the outer edge.
8. The vertical evaporative separator for desulfurization waste liquid as claimed in claim 1, wherein a pedestal bearing (11) is arranged at the central position of the bottom of the cylinder (1), and the bottom end of the driving rotating shaft (4) is fixedly connected with the pedestal bearing (11).
9. The vertical evaporative separator for desulfurization waste liquid as claimed in claim 1, wherein a reinforcing plate (14) is arranged between the driving rotating shaft (4) and the discharging scraper (12).
10. The vertical three-phase evaporative separator for desulfurization waste liquid as claimed in claim 1, wherein the discharge port (13) has a rectangular opening structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210358278.0A CN114590858A (en) | 2022-04-07 | 2022-04-07 | Novel vertical three-phase evaporative separator for desulfurization waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210358278.0A CN114590858A (en) | 2022-04-07 | 2022-04-07 | Novel vertical three-phase evaporative separator for desulfurization waste liquid |
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| Publication Number | Publication Date |
|---|---|
| CN114590858A true CN114590858A (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210358278.0A Pending CN114590858A (en) | 2022-04-07 | 2022-04-07 | Novel vertical three-phase evaporative separator for desulfurization waste liquid |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202576152U (en) * | 2012-05-09 | 2012-12-05 | 国电科学技术研究院 | Hollow spray column type flue gas desulfurization wastewater concentration device |
| CN107569983A (en) * | 2017-08-08 | 2018-01-12 | 武汉和尔环保科技有限公司 | Smoke-gas wet desulfurization equipment |
| CN209537024U (en) * | 2019-01-24 | 2019-10-25 | 华能国际电力股份有限公司 | A kind of waste water spray evaporator ash-transmission system |
| CN214570872U (en) * | 2021-03-01 | 2021-11-02 | 罗威 | Wet flue desulfurization waste water flue atomization evaporation to dryness processing apparatus of thermal power plant |
| CN215782676U (en) * | 2021-09-08 | 2022-02-11 | 南京东大能源工程设计院有限公司 | Ammonia spraying and desulfurizing device |
-
2022
- 2022-04-07 CN CN202210358278.0A patent/CN114590858A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202576152U (en) * | 2012-05-09 | 2012-12-05 | 国电科学技术研究院 | Hollow spray column type flue gas desulfurization wastewater concentration device |
| CN107569983A (en) * | 2017-08-08 | 2018-01-12 | 武汉和尔环保科技有限公司 | Smoke-gas wet desulfurization equipment |
| CN209537024U (en) * | 2019-01-24 | 2019-10-25 | 华能国际电力股份有限公司 | A kind of waste water spray evaporator ash-transmission system |
| CN214570872U (en) * | 2021-03-01 | 2021-11-02 | 罗威 | Wet flue desulfurization waste water flue atomization evaporation to dryness processing apparatus of thermal power plant |
| CN215782676U (en) * | 2021-09-08 | 2022-02-11 | 南京东大能源工程设计院有限公司 | Ammonia spraying and desulfurizing device |
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