CN104843921A - Low temperature evaporation type high-salinity wastewater treatment device - Google Patents
Low temperature evaporation type high-salinity wastewater treatment device Download PDFInfo
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- CN104843921A CN104843921A CN201510215074.1A CN201510215074A CN104843921A CN 104843921 A CN104843921 A CN 104843921A CN 201510215074 A CN201510215074 A CN 201510215074A CN 104843921 A CN104843921 A CN 104843921A
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Abstract
The invention belongs to the technical field of wastewater treatment and particularly provides a low temperature evaporation type high-salinity wastewater treatment device including an evaporation device and a salt separation device. The evaporation device comprises a high-salinity wastewater storage tank and an evaporation tower which are connected mutually; the salt separation device comprises a sedimentation tank connected to the evaporation tower. The wastewater treatment device is low in energy consumption and manufacture cost, the equipment corrosion risks are reduced on the high-salinity condition greatly, operation and maintenance are facilitated, system scaling and corrosion risks are reduced, and the wastewater zero drainage treatment is implemented on the conditions of low investment and low energy consumption.
Description
Technical field
The invention belongs to technical field of waste water processing, be specifically related to a kind of low-temperature evaporation formula high slat-containing wastewater treatment unit.
Background technology
Pollutent in the washes of the industrial circles such as electric power, petrochemical industry, Coal Chemical Industry, salt chemical engineering, circulating water system blowdown, Desultwater Station draining is based on total salinity (TDS), this part sewage is after Treatment for Reuse, and in the condensed water of outer row, TDS is up to 20000 ~ 30000mg/L.This strand of high slat-containing wastewater directly discharged as peace and quiet lower water in the past, but in recent years along with social development and environmental consciousness improve, part sensitive area requires the not outer row of waste water, zero release also more and more becomes a kind of trend in the whole society, and the key being treated as restriction wastewater zero discharge of high slat-containing wastewater.
At present, apply high slat-containing wastewater treatment process more widely and be mainly multiple-effect evaporation technology, function of mechanical steam recompression evaporation technique (MVR), distillation desalination etc.These technology are invested huge on the one hand, and general industry enterprise is difficult to bear; Energy consumption is high on the other hand, fouling risk is large, running maintenance is difficult, adds the production run cost of enterprise and the labour intensity of operations staff.Especially distill desalination process, need brackish water ebuillition of heated to make it evaporation, " wastewater zero discharge " technical bottleneck has badly influenced the enforcement of national environmental protection policy.
Summary of the invention
The object of the invention is to overcome in prior art and process high slat-containing wastewater Problems existing, the high slat-containing wastewater treatment unit of a kind of Low investment, less energy-consumption is provided.
For this reason, the invention provides a kind of low-temperature evaporation formula high slat-containing wastewater treatment unit, comprise evaporation unit and salt tripping device, described evaporation unit comprises interconnective high slat-containing wastewater bin and evaporator tower;
Described evaporator tower comprises tower body, the top of described tower body is provided with interconnective motor and blower fan, the top periphery of tower body has wallboard, and the lower periphery of tower body has air intake luffer boards, and described tower body inside is provided with water collecting piece, filler, shower nozzle, jet pipe, water inlet pipe, chassis and water outlet, jet pipe is arranged on above filler, shower nozzle is distributed in bottom jet pipe, and described jet pipe is communicated with water inlet pipe, and water collecting piece is arranged on above jet pipe, chassis is arranged on bottom tower body, and chassis is connected with water outlet; The structure design of evaporator tower increases the contact area of liquid and gas in evaporator tower to greatest extent, and in liquid phase, moisture evaporates in a large number and enters gas phase, and the high slat-containing wastewater namely in evaporator tower evaporates in a large number.
Described salt tripping device comprises settling bowl, and settling bowl is connected with evaporator tower.
Described salt tripping device also comprises the plate-and-frame filter press be connected with settling bowl, is provided with slush pump between described settling bowl and plate-and-frame filter press.
Described evaporation unit also comprises dosing tank, and described dosing tank is connected with evaporator tower by volume pump.
Described tower body side is provided with staircase, and described staircase is fixed by fixed support.
Beneficial effect of the present invention: this low-temperature evaporation formula high slat-containing wastewater treatment unit utilizing waste water residual heat provided by the invention, energy consumption is low, device fabrication cost is low, carries out evaporative crystallization at normal temperatures and pressures, greatly reduces the equipment corrosion risk under supersalinity condition; Running maintenance is convenient, and scaling, corrosion risk reduce.Achieve wastewater zero discharge process under Low investment, less energy-consumption condition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the front view of evaporator tower of the present invention.
Fig. 3 is the side-view of evaporator tower of the present invention.
Fig. 4 is the vertical view of evaporator tower of the present invention.
Fig. 5 is the sectional view in A-A direction in Fig. 3 of the present invention.
Description of reference numerals: 1, high slat-containing wastewater bin; 2, dosing tank; 3, evaporator tower; 3.1, tower body; 3.2, water collecting piece; 3.3, shower nozzle; 3.4, filler; 3.5, wallboard; 3.6, air intake luffer boards; 3.7, chassis; 3.8, water outlet; 3.9, staircase; 3.10, motor; 3.11, blower fan; 3.12, jet pipe; 3.13, water inlet pipe; 3.14, fixed support; 4, volume pump; 5, settling bowl; 6, slush pump; 7, plate-and-frame filter press.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
Present embodiments provide a kind of low-temperature evaporation formula high slat-containing wastewater treatment unit, as shown in Figure 1, comprise evaporation unit and salt tripping device, described evaporation unit comprises interconnective high slat-containing wastewater bin and evaporator tower, in order to increase the contact area of liquid phase and gas phase to greatest extent when high slat-containing wastewater evaporates, as Fig. 2, 3, shown in 4 and 5, described evaporator tower 3 comprises tower body 3.1, the top of described tower body 3.1 is provided with interconnective motor 3.10 and blower fan 3.11, the top periphery of tower body 3.1 has wallboard 3.5, the lower periphery of tower body 3.1 has air intake luffer boards 3.6, described tower body 3.1 inside is provided with water collecting piece 3.2, filler 3.4, shower nozzle 3.3, jet pipe 3.12, water inlet pipe 3.13, chassis 3.7 and water outlet 3.8, jet pipe 3.12 is arranged on above filler 3.4, shower nozzle 3.3 is distributed in bottom jet pipe 3.12, described jet pipe 3.12 is communicated with water inlet pipe 3.13, water collecting piece 3.2 is arranged on above jet pipe 3.12, chassis 3.7 is arranged on bottom tower body 3.1, chassis 3.7 is connected with water outlet 3.8, described tower body 3.1 side is provided with staircase 3.9, and described staircase 3.9 is fixed by fixed support 3.14.
The structure design of evaporator tower 3 increases the contact area of liquid and gas in evaporator tower 3 to greatest extent, in liquid phase, moisture evaporates in a large number and enters gas phase, even if at normal temperatures and pressures, the high slat-containing wastewater in evaporator tower 3 also can evaporate in a large number, accelerates waste water velocity of evaporation.
Described salt tripping device comprises settling bowl 5, and settling bowl 5 is connected with evaporator tower 3.Described salt tripping device also comprises the plate-and-frame filter press 7 be connected with settling bowl 5, is provided with slush pump 6 between described settling bowl 5 and plate-and-frame filter press 7.By the solid in plate-and-frame filter press 7 separate and subside pond 5 and liquid, obtain not containing the supernatant liquor of solid, realize solid-liquid separation.Slush pump 6 is provided with between described settling bowl 5 and plate-and-frame filter press 7.The cleaning to settling bowl 5 is realized by slush pump 6.
In order to regulate the pH value of high slat-containing wastewater, make it reach better precipitated crystal effect, described evaporation unit also comprises dosing tank 2, and described heating container 2 is NaOH dosing tank, is connected with evaporator tower 3 by volume pump 4.
Specific works process is as follows:
High slat-containing wastewater is pumped into high slat-containing wastewater bin 1 by waste water lifting, and the high slat-containing wastewater in high slat-containing wastewater bin 1 in evaporator tower 3, regulates the temperature in described evaporator tower 3 to be 30-40 DEG C by gravity overflow.High slat-containing wastewater sprays into filler 3.4 by the shower nozzle 3.3 on water jet standpipe 3.12, blower fan 3.11 by freezing air by the bottom suction tower of tower body 3.1, heat exchange is carried out through filler 3.4 with the water sprayed in shower nozzle 3.3, in tower body 3.1, the contact of waste water and air is more fully with thorough, waste water velocity of evaporation is accelerated, in evaporator tower 3, moisture constantly evaporates, in evaporator tower 3, the saltiness of high slat-containing wastewater is improper increases, become high saliferous to give up dense water, when to reach capacity or close to time saturated, separate out the soluble solids in high slat-containing wastewater, enter into settling bowl 5 precipitate containing the solid solution object height saliferous dense water that gives up, temperature in described settling bowl 5 is 15-40 DEG C.Carry out filtering-depositing by flame filter press 7 pairs of high slat-containing wastewaters, isolate solid and supernatant liquor, its supernatant liquor returns in evaporator tower 3 and continues evaporation, and repeat above-mentioned steps, high slat-containing wastewater constantly by crystallization, and is separated in settling bowl 5.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (4)
1. a low-temperature evaporation formula high slat-containing wastewater treatment unit, is characterized in that: comprise evaporation unit and salt tripping device, and described evaporation unit comprises interconnective high slat-containing wastewater bin (1) and evaporator tower (3);
Described evaporator tower (3) comprises tower body (3.1), the top of described tower body (3.1) is provided with interconnective motor (3.10) and blower fan (3.11), the top periphery of tower body (3.1) has wallboard (3.5), the lower periphery of tower body (3.1) has air intake luffer boards (3.6), described tower body (3.1) inside is provided with water collecting piece (3.2), filler (3.4), shower nozzle (3.3), jet pipe (3.12), water inlet pipe (3.13), chassis (3.7) and water outlet (3.8), jet pipe (3.12) is arranged on filler (3.4) top, shower nozzle (3.3) is distributed in jet pipe (3.12) bottom, described jet pipe (3.12) is communicated with water inlet pipe (3.13), water collecting piece (3.2) is arranged on jet pipe (3.12) top, chassis (3.7) is arranged on tower body (3.1) bottom, chassis (3.7) is connected with water outlet (3.8),
Described salt tripping device comprises settling bowl (5), and settling bowl (5) is connected with evaporator tower (3).
2. a kind of low-temperature evaporation formula high slat-containing wastewater treatment unit as claimed in claim 1, it is characterized in that: described salt tripping device also comprises the plate-and-frame filter press (7) be connected with settling bowl (5), is provided with slush pump (6) between described settling bowl (5) and plate-and-frame filter press (7).
3. a kind of low-temperature evaporation formula high slat-containing wastewater treatment unit as claimed in claim 1, it is characterized in that: described evaporation unit also comprises dosing tank (2), described dosing tank (2) is connected with evaporator tower (3) by volume pump (4).
4. a kind of low-temperature evaporation formula high slat-containing wastewater treatment unit as claimed in claim 1, is characterized in that: described tower body (3.1) side is provided with staircase (3.9), and described staircase (3.9) is fixed by fixed support (3.14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215074.1A CN104843921A (en) | 2015-04-30 | 2015-04-30 | Low temperature evaporation type high-salinity wastewater treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215074.1A CN104843921A (en) | 2015-04-30 | 2015-04-30 | Low temperature evaporation type high-salinity wastewater treatment device |
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| CN104843921A true CN104843921A (en) | 2015-08-19 |
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| CN201510215074.1A Pending CN104843921A (en) | 2015-04-30 | 2015-04-30 | Low temperature evaporation type high-salinity wastewater treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316778A (en) * | 2019-07-19 | 2019-10-11 | 国电浙江北仑第一发电有限公司 | A kind of high-efficiency energy-saving desulfurizing Waste water concentrating processing unit |
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| CN102701303A (en) * | 2012-05-29 | 2012-10-03 | 汪亮亮 | Liquid-film low-temperature-evaporation zero-emission saline wastewater treatment method |
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| CN203668039U (en) * | 2013-11-22 | 2014-06-25 | 北京万邦达环保技术股份有限公司 | Strong brine evaporation device |
| CN204058005U (en) * | 2014-08-08 | 2014-12-31 | 张建中 | A kind of spray concentration device |
| CN204644038U (en) * | 2015-04-30 | 2015-09-16 | 北京朗新明环保科技有限公司南京分公司 | A kind of low-temperature evaporation formula high slat-containing wastewater treatment unit |
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2015
- 2015-04-30 CN CN201510215074.1A patent/CN104843921A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4061068B2 (en) * | 2002-01-10 | 2008-03-12 | 正勝 高安 | Processed seawater products and methods of manufacturing seawater processed products |
| CN202006030U (en) * | 2010-12-13 | 2011-10-12 | 郭德豪 | Vacuum spray decompression evaporator |
| CN103373785A (en) * | 2012-04-25 | 2013-10-30 | 郭朝军 | Cooling concentration and reverse osmosis combined salt-containing water concentrating method and equipment |
| CN102701303A (en) * | 2012-05-29 | 2012-10-03 | 汪亮亮 | Liquid-film low-temperature-evaporation zero-emission saline wastewater treatment method |
| CN103553166A (en) * | 2013-11-14 | 2014-02-05 | 天津辰创环境工程科技有限责任公司 | Device and method of treating wastewater with high salt content by utilizing waste heat of circulating water |
| CN203668039U (en) * | 2013-11-22 | 2014-06-25 | 北京万邦达环保技术股份有限公司 | Strong brine evaporation device |
| CN204058005U (en) * | 2014-08-08 | 2014-12-31 | 张建中 | A kind of spray concentration device |
| CN204644038U (en) * | 2015-04-30 | 2015-09-16 | 北京朗新明环保科技有限公司南京分公司 | A kind of low-temperature evaporation formula high slat-containing wastewater treatment unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316778A (en) * | 2019-07-19 | 2019-10-11 | 国电浙江北仑第一发电有限公司 | A kind of high-efficiency energy-saving desulfurizing Waste water concentrating processing unit |
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Application publication date: 20150819 |
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