CN111792691A - Device for concentrating high-salinity wastewater - Google Patents
Device for concentrating high-salinity wastewater Download PDFInfo
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- CN111792691A CN111792691A CN202010801927.0A CN202010801927A CN111792691A CN 111792691 A CN111792691 A CN 111792691A CN 202010801927 A CN202010801927 A CN 202010801927A CN 111792691 A CN111792691 A CN 111792691A
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- water
- channel
- receiving tray
- dehumidifier
- salinity wastewater
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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
- C02F1/048—Purification of waste water by evaporation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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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
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
Abstract
The invention relates to a device for concentrating high-salinity wastewater, which comprises a device body, wherein a water receiving tray is arranged in the device body, an air inlet channel is arranged on one side of the water receiving tray, an air outlet channel is arranged above the water receiving tray, a primary filtering device, a secondary filtering device, a first dehumidifier and a heater are sequentially arranged in the air inlet channel, and the heater is close to the water receiving tray; an adsorption device, a water separator, a fan and a second dehumidifier are sequentially arranged in the air outlet channel, the adsorption device is close to the water receiving tray, and the water receiving tray is communicated with the water separator and used for providing wastewater for the water separator. The device for concentrating the high-salinity wastewater provided by the invention has the advantages of relatively simple structure, small investment, convenience in operation, small occupied area and high evaporation efficiency.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a device for concentrating high-salinity wastewater.
Background
At present, the concentration of high-salinity wastewater adopts a low-temperature evaporation method, and devices required in the low-temperature evaporation method comprise a plurality of medium-large devices such as a multi-effect evaporator and a boiler, so that the investment is large, the operation is troublesome, the occupied area is large, and the evaporation efficiency is low.
Disclosure of Invention
The invention aims to provide a device for concentrating high-salinity wastewater, so as to solve the technical problem.
The technical scheme of the application is as follows: a device for concentrating high-salinity wastewater comprises a device body, wherein a water receiving tray is arranged in the device body, an air inlet channel is arranged on one side of the water receiving tray, an air outlet channel is arranged above the water receiving tray, a primary filtering device, a secondary filtering device, a first dehumidifier and a heater are sequentially arranged in the air inlet channel, and the heater is close to the water receiving tray; an adsorption device, a water separator, a fan and a second dehumidifier are sequentially arranged in the air outlet channel, the adsorption device is close to the water receiving tray, and the water receiving tray is communicated with the water separator and used for providing wastewater for the water separator.
Preferably, the air outlet channel comprises a first channel which is vertically arranged, and a second channel and a third channel which are horizontally arranged, and the first channel is close to the water pan; the second channel is communicated with the first channel, the third channel is communicated with the second channel, the diameter of the second channel is smaller than that of the third channel, the fan is located in the first channel, and the second dehumidifier is located in the third channel; and a water baffle is arranged on the second channel, and the bottom end of the third channel is communicated with the water receiving disc.
Preferably, the second channel is provided with three water baffles, a water tank is formed between every two adjacent water baffles, and the water tank is communicated with the water receiving tray.
Preferably, a first metal mesh water arrester is arranged above the fan in the first channel, a second metal mesh water arrester is arranged in the third channel, and the second metal mesh water arrester is arranged on one side, close to the second channel, of the second dehumidifier.
Preferably, the heat exchanger further comprises an evaporator and a condenser, the first dehumidifier and the evaporator are connected to form a first heat exchange loop, and the second dehumidifier and the evaporator are connected to form a second heat exchange loop; the evaporator is connected with the condenser to form a third heat exchange loop; the condenser is connected with the water receiving tray and the water distributor to form a fourth heat exchange loop; a compressor and an expansion valve are arranged on the second heat exchange loop; and a centrifugal separator is arranged on the fourth loop and is positioned between the condenser and the water pan.
Preferably, the device body is provided with a water inlet pipe, the water inlet pipe extends into the box body, and the water supply pipe is provided with a valve.
Preferably, the valve is a float valve.
Preferably, the first channel is recessed inwards at the position of the fan to form an arc surface, the first water inlet water arrester is arranged at the top of the arc surface, and the edge of the first water inlet water arrester is connected with the arc surface; the fan set up in the middle part of cambered surface, the water knockout drum is located the below of cambered surface.
Preferably, the adsorption device is a filler.
When the device for concentrating the high-salinity wastewater is used, the high-salinity wastewater flows into the water receiving disc through the water inlet pipe and is atomized and sprayed into the filler through the water separator to form a water film; the air is filtered clean after passing through the primary filter device and the secondary filter device, then enters the first dehumidifier to remove water vapor in the air, and then is heated to a preset temperature by the heater to be changed into hot air, the hot air takes away the water vapor on the surface of the water film by the filler to form mixed gas of the water vapor and the air, the mixed gas is discharged after the water vapor is removed by the second dehumidifier, wherein the gas can be recycled before being discharged to the primary filter or the heater, and the water vapor generated by the dehumidification of the second dehumidifier can be recycled. In the process, the evaporation of the dry air to the water film can lead the wastewater to be continuously concentrated, so that the wastewater is continuously circulated and concentrated and finally reaches the preset requirement, and the wastewater reaching the required high concentration can be discharged to other devices such as a normal-air evaporation salt separation device for further evaporation salt separation; the high concentration waste water may be passed through a centrifugal separator to separate crystallized salts.
The device for concentrating the high-salinity wastewater provided by the invention has the advantages of relatively simple structure, small investment, convenience in operation, small occupied area and high evaporation efficiency.
Drawings
FIG. 1 is a block diagram of a treatment system for use in an apparatus for concentrating high salinity wastewater provided in accordance with the present invention, wherein the flow direction of the gas or liquid is schematically indicated by arrows;
reference numbers in the figures: the device comprises a device body 1, a water receiving tray 2, an air inlet channel 3, an air outlet channel 4, a first channel 4-1, a second channel 4-2, a third channel 4-3, a primary filtering device 5, a secondary filtering device 6, a first dehumidifier 7, a heater 8, an adsorption device 9, a water separator 10, a fan 11, a second dehumidifier 12, a water baffle 13, a water tank 14, an evaporator 15, a condenser 16, a compressor 17, an expansion valve 18, a centrifugal separator 19, a water inlet pipe 20, a floating ball valve 21, a first metal mesh water interceptor 22 and a second metal mesh water interceptor 23.
Detailed Description
The invention is further illustrated by the following figures and examples.
Referring to fig. 1, the invention provides a device for concentrating high-salinity wastewater, which comprises a device body 1 and is characterized in that a water pan 2 is arranged in the device body, an air inlet channel 3 is arranged on one side of the water pan, an air outlet channel 4 is arranged above the water pan, a primary filtering device 5, a secondary filtering device 6, a first dehumidifier 7 and a heater 8 are sequentially arranged in the air inlet channel, and the heater is close to the water pan; set gradually adsorption equipment 9, water knockout drum 10, fan 11 and second dehumidifier 12 in the air outlet channel, adsorption equipment is close to the water collector, the water collector with the water knockout drum intercommunication is used for the water knockout drum provides waste water, and wherein adsorption equipment is used for adhering to the water droplet and forms the water film, and wherein adsorption equipment can use the filler, for the convenience of sewage gets into the water collector, be provided with inlet tube 20 on the device body, the inlet tube extends to this is internal to the dress box, be provided with the valve on the feed pipe, wherein, the preferred ball-cock assembly 21 that floats of valve.
When the device for concentrating the high-salinity wastewater is used, the high-salinity wastewater flows into the water receiving disc through the water inlet pipe and then is atomized and sprayed into the filler through the water separator to form a water film; the air is filtered clean after passing through the primary filter device and the secondary filter device, then enters the first dehumidifier to remove water vapor in the air, and then is heated to a preset temperature by the heater to be changed into hot air, the hot air takes away the water vapor on the surface of the water film by the filler to form mixed gas of the water vapor and the air, the mixed gas is discharged after the water vapor is removed by the second dehumidifier, wherein the gas can be recycled before being discharged to the primary filter or the heater, and the water vapor generated by the dehumidification of the second dehumidifier can be recycled. In the process, the evaporation of the dry air to the water film can lead the wastewater to be continuously concentrated, so that the wastewater is continuously circulated and concentrated and finally reaches the preset requirement, and the wastewater reaching the required high concentration can be discharged to other devices such as a normal-air evaporation salt separation device for further evaporation salt separation; the high concentration waste water may be passed through a centrifugal separator to separate crystallized salts.
The structure is relatively simple, the investment is small, the operation is convenient, the occupied area is small, and the evaporation efficiency is high.
As a preferred embodiment, the air outlet channel comprises a first channel 4-1 arranged vertically, a second channel 4-2 arranged horizontally and a third channel 4-3 arranged horizontally, and the first channel is close to the water pan; the second channel is communicated with the first channel, the third channel is communicated with the second channel, the diameter of the second channel is smaller than that of the third channel, so that the second channel and the third channel form a step to facilitate water flow, the fan is positioned in the first channel, and the second dehumidifier is positioned in the third channel; the second channel is provided with water baffles 13, the bottom end of the third channel is communicated with the water receiving tray, preferably, the second channel is provided with three water baffles, a water tank 14 is formed between the adjacent water baffles, and the water tank is communicated with the water receiving tray, as shown in fig. 1, the three water baffles can be increased in height from left to right when being arranged so as to block water step by step; this structure is when mist passes through, because vapor condensation produces little drop of water and is blockked finally can flow back to the water collector and be handled once more after the breakwater, prevents that the air from carrying the burden that sewage steam increases the second dehumidifier through the second dehumidifier, causes the air even to carry sewage steam and is discharged.
As a preferred embodiment, a first metal mesh water barrier 22 is arranged above the fan in the first channel, a second metal mesh water barrier 23 is arranged in the third channel, and the second metal mesh water barrier is arranged on one side of the second dehumidifier close to the second channel, so that water vapor in the mixed gas is more easily intercepted by the metal mesh water barrier, and especially, the effect is better when the metal mesh water barrier is matched with a water baffle.
As a preferred embodiment, the device for concentrating high-salinity wastewater further comprises an evaporator 15 and a condenser 16, wherein the first dehumidifier and the evaporator are connected to form a first heat exchange loop, and the second dehumidifier and the evaporator are connected to form a second heat exchange loop; the evaporator is connected with the condenser to form a third heat exchange loop; the condenser is connected with the water receiving tray and the water distributor to form a fourth heat exchange loop; a compressor 17 and an expansion valve 18 are arranged on the second heat exchange loop; and a centrifugal separator 19 is arranged on the fourth loop and is positioned between the condenser and the water pan. The chilled water in the evaporator can be used for condensing and dehumidifying air; the condenser heats the circulating water, the refrigerant changes into high-temperature high-pressure gas through self phase, then the high-temperature high-pressure gas is decompressed through the expansion valve until the evaporator changes into low-temperature low-pressure liquid, the heated chilled water is evaporated to change into low-temperature low-pressure gas, the low-temperature low-pressure gas is compressed into high-temperature high-pressure gas by the compressor and then enters the condenser to heat the circulating high-salt waste water material, the process is changed into high-temperature high-pressure liquid, and the. Thus, a plurality of heat exchange loops are formed, and energy recycling is realized. Of course, a heater can be directly arranged on a connecting pipeline of the water separator and the water receiving tray to provide a heat source for the operation of the equipment.
As a preferred embodiment, the first channel is recessed inwards at the position of the fan to form an arc surface, the first water inlet water arrester is arranged at the top of the arc surface, and the edge of the first water inlet water arrester is connected with the arc surface; the fan set up in the middle part of cambered surface, the water knockout drum is located the below of cambered surface. This kind of structure is advanced when the mist, and the mist is compressed by the restriction of curved face, has increased the density of mist firstly, but has accelerated the flow speed of mist and has do benefit to the hydrone collision for vapor condenses into the water droplet more easily and is blockked, further prevents that the air from carrying the burden that sewage steam increased the second dehumidifier, causes the air to carry sewage steam to be discharged even through the increase second dehumidifier.
The above description is only for the purpose of illustrating preferred embodiments of the present invention and is not to be construed as limiting the present invention, and the terms first, second, etc. are used for distinguishing between similar terms and not for limiting the technical terms, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A device for concentrating high-salinity wastewater comprises a device body (1) and is characterized in that a water receiving tray (2) is arranged in the device body, an air inlet channel (3) is arranged on one side of the water receiving tray, an air outlet channel (4) is arranged above the water receiving tray, a primary filtering device (5), a secondary filtering device (6), a first dehumidifier (7) and a heater (8) are sequentially arranged in the air inlet channel, and the heater is close to the water receiving tray;
an adsorption device (9), a water separator (10), a fan (11) and a second dehumidifier (12) are sequentially arranged in the air outlet channel, the adsorption device is close to the water receiving tray, and the water receiving tray is communicated with the water separator and used for providing wastewater for the water separator.
2. The apparatus for high-salinity wastewater concentration according to claim 1, wherein the air outlet channel comprises a first channel (4-1) arranged vertically and a second channel (4-2) and a third channel (4-3) arranged horizontally, the first channel is close to the water-receiving tray;
the second channel is communicated with the first channel, the third channel is communicated with the second channel, the diameter of the second channel is smaller than that of the third channel, the fan is located in the first channel, and the second dehumidifier is located in the third channel;
a water baffle (13) is arranged on the second channel, and the bottom end of the third channel is communicated with the water pan.
3. The degradation-resistant device for concentrating high-salinity wastewater according to claim 2, wherein three water baffles are arranged on the second channel, and a water tank (14) is formed between the adjacent water baffles and is communicated with the water pan.
4. The degradation-resistant device for concentrating high-salinity wastewater according to claim 2 or 3, wherein a first metal mesh water arrester (22) is arranged above the fan in the first channel, a second metal mesh water arrester (23) is arranged in the third channel, and the second metal mesh water arrester is arranged on one side, close to the second channel, of the second dehumidifier.
5. The apparatus for high salinity wastewater concentration according to claim 1, further comprising an evaporator (15) and a condenser (16), wherein the first dehumidifier and the evaporator are connected to form a first heat exchange circuit, and the second dehumidifier and the evaporator are connected to form a second heat exchange circuit;
the evaporator is connected with the condenser to form a third heat exchange loop;
the condenser is connected with the water receiving tray and the water distributor to form a fourth heat exchange loop;
the second heat exchange loop is provided with a compressor (17) and an expansion valve (18);
and a centrifugal separator (19) is arranged on the fourth loop and is positioned between the condenser and the water pan.
6. The apparatus for high salinity wastewater concentration according to claim 1, characterized in that, the apparatus body is provided with a water inlet pipe (20), the water inlet pipe extends into the box body, and the water supply pipe is provided with a valve.
7. The apparatus for high salinity wastewater concentration according to claim 6, characterized in that, the valve is a ball float valve (21).
8. The apparatus for high salinity wastewater concentration according to claim 1, wherein the first channel is recessed inwardly at the position of the fan to form an arc surface, the first water inlet water baffle is arranged at the top of the arc surface, and the edge is connected with the arc surface;
the fan set up in the middle part of cambered surface, the water knockout drum is located the below of cambered surface.
9. The apparatus for high salinity wastewater concentration according to claim 1, characterized in that, the absorption means is a packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801927.0A CN111792691A (en) | 2020-08-11 | 2020-08-11 | Device for concentrating high-salinity wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801927.0A CN111792691A (en) | 2020-08-11 | 2020-08-11 | Device for concentrating high-salinity wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN111792691A true CN111792691A (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010801927.0A Pending CN111792691A (en) | 2020-08-11 | 2020-08-11 | Device for concentrating high-salinity wastewater |
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| Country | Link |
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| CN (1) | CN111792691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140794A (en) * | 2022-07-07 | 2022-10-04 | 常州市鼎亨机电设备有限公司 | Low-temperature evaporation device with automatic scale removing function for wastewater treatment |
-
2020
- 2020-08-11 CN CN202010801927.0A patent/CN111792691A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140794A (en) * | 2022-07-07 | 2022-10-04 | 常州市鼎亨机电设备有限公司 | Low-temperature evaporation device with automatic scale removing function for wastewater treatment |
| CN115140794B (en) * | 2022-07-07 | 2023-09-19 | 常州市鼎亨机电设备有限公司 | Low-temperature evaporation device with automatic scale removal function for wastewater treatment |
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