CN204873913U - A low-temperature freezing sublimation equipment for treating high-salt wastewater - Google Patents
A low-temperature freezing sublimation equipment for treating high-salt wastewater Download PDFInfo
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- CN204873913U CN204873913U CN201520537027.4U CN201520537027U CN204873913U CN 204873913 U CN204873913 U CN 204873913U CN 201520537027 U CN201520537027 U CN 201520537027U CN 204873913 U CN204873913 U CN 204873913U
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- 238000007710 freezing Methods 0.000 title claims abstract description 67
- 230000008014 freezing Effects 0.000 title claims abstract description 67
- 239000002351 wastewater Substances 0.000 title claims abstract description 50
- 238000000859 sublimation Methods 0.000 title claims abstract description 16
- 230000008022 sublimation Effects 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000002994 raw material Substances 0.000 claims abstract description 47
- 150000003839 salts Chemical class 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 238000005057 refrigeration Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000009833 condensation Methods 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims abstract description 7
- 238000002061 vacuum sublimation Methods 0.000 claims description 22
- 239000003507 refrigerant Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 7
- 230000032258 transport Effects 0.000 abstract description 5
- 239000007787 solid Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
本实用新型公开了一种用于处理高盐废水的低温冷冻升华设备，包括一低温冷冻单元、一原料容器、一原料预冷处理单元、一制冷/热单元以及一水蒸气冷凝单元。原料预冷处理单元对抽送至低温冷冻单元内的高盐废水进行预冷处理，制冷/热单元将相应的冷源及热源输送至温冷冻单元及水蒸气冷凝单元上，使得低温冷冻单元内结冰的高盐废水升华成水蒸气，同时实现水与盐份分离，以及使输送至水蒸气冷凝单元内的水蒸气冷凝成液态水。采用本实用新型技术方案，具有工艺简单、高效且成本低的特点。
The utility model discloses a low-temperature freezing and sublimation device for treating high-salt wastewater, comprising a low-temperature freezing unit, a raw material container, a raw material pre-cooling treatment unit, a refrigeration/heating unit and a water vapor condensation unit. The raw material pre-cooling treatment unit performs pre-cooling treatment on the high-salt wastewater pumped into the low-temperature freezing unit, and the refrigeration/heating unit transports the corresponding cold source and heat source to the warm freezing unit and the water vapor condensation unit, so that the frozen high-salt wastewater in the low-temperature freezing unit is sublimated into water vapor, and the separation of water and salt is achieved at the same time, and the water vapor transported to the water vapor condensation unit is condensed into liquid water. The technical solution of the utility model has the characteristics of simple process, high efficiency and low cost.
Description
【技术领域】【Technical field】
本实用新型涉及污水处理设备，尤其是一种处理高盐废水低温冷冻升华设备。The utility model relates to sewage treatment equipment, in particular to low-temperature freezing and sublimation equipment for treating high-salt wastewater.
【背景技术】【Background technique】
现有技术中，为了将高盐废水中的盐份与水进行分离，采用的方法多样，包括有化学沉淀过滤法、多级闪蒸法，以及过滤反渗透法，然而采用上述方法进行分离，其工艺复杂，成本高，不利于污水处理企业的发展。In the prior art, in order to separate the salt and water in high-salt wastewater, various methods are used, including chemical precipitation filtration, multi-stage flash evaporation, and reverse osmosis filtration. However, the above methods are used for separation. The process is complicated and the cost is high, which is not conducive to the development of sewage treatment enterprises.
本实用新型即针对现有技术的不足研究而提出。The utility model proposes in view of the insufficient research of the prior art.
【实用新型内容】【Content of utility model】
本实用新型要解决的技术问题是提供一种处理高盐废水低温冷冻升华设备，利用升华原理，通过低温冷冻单元直接将高盐废水从固态冰升华为水蒸气，进而到达将高盐废水中的盐份与水分离，具有分离效率高、工艺步骤简单及成本低的特点。The technical problem to be solved by the utility model is to provide a low-temperature freezing and sublimation equipment for treating high-salt wastewater. Using the principle of sublimation, the high-salt wastewater is directly sublimated from solid ice to water vapor through a low-temperature freezing unit, and then reaches the high-salt wastewater. The separation of salt and water has the characteristics of high separation efficiency, simple process steps and low cost.
为解决上述技术问题，本实用新型一种处理高盐废水低温冷冻升华设备，包括：In order to solve the above technical problems, the utility model is a low-temperature freezing and sublimation equipment for treating high-salt wastewater, including:
一低温冷冻单元，所述低温冷冻单元包括用于盛装高盐废水的低温冷冻槽，所述低温冷冻槽上方转动设有底部浸在高盐废水中的低温转轮，所述低温转轮内设有低温冷冻液，所述低温冷冻槽侧设有用于驱动低温转轮转动的低温转轮驱动电机，所述低温冷冻槽上方还设有用于将低温转轮密封罩住以形成一真空升华腔室的罩壳，所述罩壳侧设有抵接于低温转轮的用于将残留在低温转轮表面上的盐份刮除收集的盐份收集机构；A low-temperature freezing unit, the low-temperature freezing unit includes a low-temperature freezing tank for containing high-salt wastewater, and a low-temperature runner with a bottom immersed in high-salt wastewater rotates above the low-temperature freezing tank. There is cryogenic liquid, the side of the cryogenic tank is provided with a low-temperature runner drive motor for driving the cryogenic runner, and the cryogenic tank is also provided with a low-temperature runner seal cover to form a vacuum sublimation chamber A casing, the side of the casing is provided with a salt collection mechanism abutting against the low-temperature runner for scraping and collecting the salt remaining on the surface of the low-temperature runner;
一原料容器，用于盛装及向低温冷冻槽供给要处理的高盐废水，所述原料容器与低温冷冻槽之间连接有用于将原料容器内的高盐废水抽送至低温冷冻槽上的原料供给管道；A raw material container is used to contain and supply high-salt wastewater to be treated to the low-temperature freezing tank, and a raw material supply for pumping the high-salt wastewater in the raw material container to the low-temperature freezing tank is connected between the raw material container and the low-temperature freezing tank pipeline;
一原料预冷处理单元，用于将抽送至低温冷冻槽上的高盐废水进行预冷却处理，所述原料预冷处理单元设于原料容器与低温冷冻槽之间且通过原料供给管道分别与原料容器及低温冷冻槽连接；A raw material pre-cooling treatment unit, used for pre-cooling the high-salt wastewater pumped to the low-temperature freezing tank, the raw material pre-cooling treatment unit is arranged between the raw material container and the low-temperature freezing tank, and is respectively connected to the raw material container and the low-temperature freezing tank through the raw material supply pipeline Low temperature freezing tank connection;
一制冷/热单元，所述制冷/热单元与低温冷冻单元之间连接有用于伸入低温转轮内且浸没于低温冷冻液以降低低温转轮温度的第一制冷盘管和用于伸入真空升华腔室内以提高真空升华腔室内温度的热干空气管道；以及A refrigerating/heating unit, the first refrigerating coil for extending into the low-temperature runner and submerged in the low-temperature refrigerated liquid to reduce the temperature of the low-temperature runner is connected between the refrigerating/heating unit and the low-temperature freezing unit hot dry air ducts within the vacuum sublimation chamber to increase the temperature within the vacuum sublimation chamber; and
一水蒸气冷凝单元，所述水蒸气冷凝单元与低温冷冻单元之间连接有伸入真空升华腔室内以将升华的水蒸气抽送至水蒸气冷凝单元的水蒸气输送管道，所述制冷/热单元与水蒸气冷凝单元之间还连接有第二制冷盘管以将水蒸气冷凝单元内的水蒸气冷凝成液体。A water vapor condensing unit, a water vapor delivery pipeline extending into the vacuum sublimation chamber to pump sublimated water vapor to the water vapor condensing unit is connected between the water vapor condensing unit and the low-temperature freezing unit, and the refrigeration/heating unit A second refrigeration coil is also connected with the water vapor condensing unit to condense the water vapor in the water vapor condensing unit into liquid.
所述水蒸气冷凝单元与原料预冷处理单元直接连接有冷凝水管道，所述原料预冷处理单元还连接有用于收集冷凝水的清水槽。The water vapor condensing unit is directly connected with a condensed water pipeline with the raw material pre-cooling treatment unit, and the raw material pre-cooled treatment unit is also connected with a clear water tank for collecting condensed water.
所述水蒸气冷凝单元还连接有普通制冷散热器。The water vapor condensing unit is also connected with a common refrigeration radiator.
所述盐份收集机构包括倾斜设置的刮板，所述刮板上端抵接于低温转轮表面且当低温转轮转动时以刮除低温转轮上残留的盐份，所述刮板下端下方设有用于收集沿着刮板滑落的盐份的收集板，所述收集板中部与罩壳铰接，所述收集板朝向外侧一端设有平衡锤，所述收集板朝向内侧一端下方设有用于输送盐份的传送带。The salt collection mechanism includes a scraper arranged obliquely. The upper end of the scraper abuts against the surface of the low-temperature runner to scrape off the residual salt on the low-temperature runner when the low-temperature runner rotates. There is a collecting plate for collecting the salt that slides along the scraper, the middle part of the collecting plate is hinged with the casing, the end of the collecting plate facing the outside is provided with a counterweight, and the end of the collecting plate facing the inside is provided with a Salt conveyor belt.
所述水蒸气输送管道从罩壳顶部伸入真空升华腔室内。The water vapor delivery pipeline extends from the top of the casing into the vacuum sublimation chamber.
所述制冷/热单元为低温制冷机。The cooling/heating unit is a cryogenic refrigerator.
与现有技术相比，本实用新型具有如下优点：Compared with the prior art, the utility model has the following advantages:
1、低温转轮底部浸在高盐废水中，低温转轮内设有低温冷冻液，低温转轮外表面转动脱离低温转动槽后，蘸在低温转轮上的高盐废水则结为固态冰，在真空升华腔室内，固态冰的水份随低温转轮转动过程中升华为水蒸气，并将盐份残留在低温转轮上，当低温转轮转动到另一侧时，盐份收集机构则将残留在低温转轮上的盐份刮除，具有效率高、工艺简单及成本低的特点。1. The bottom of the low-temperature runner is immersed in high-salt wastewater. There is a low-temperature refrigerant inside the low-temperature runner. After the outer surface of the low-temperature runner rotates away from the low-temperature rotating tank, the high-salt wastewater dipped in the low-temperature runner turns into solid ice. , in the vacuum sublimation chamber, the water in the solid ice is sublimated into water vapor during the rotation of the low-temperature rotor, and the salt remains on the low-temperature rotor. When the low-temperature rotor rotates to the other side, the salt collection mechanism Then the salt remaining on the low-temperature runner is scraped off, which has the characteristics of high efficiency, simple process and low cost.
2、高盐废水先经过原料预冷处理单元进行预冷处理，且原料预冷处理单元中的冷源来自于水蒸气冷凝单元，循环使用，具有节能特点。2. The high-salt wastewater is firstly pre-cooled by the raw material pre-cooling treatment unit, and the cold source in the raw material pre-cooling treatment unit comes from the water vapor condensation unit, which is recycled and has the characteristics of energy saving.
【附图说明】【Description of drawings】
下面结合附图对本实用新型的具体实施方式作进一步详细说明，其中：Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail, wherein:
图1为实用新型平面连接结构示意图。Fig. 1 is a schematic diagram of the planar connection structure of the utility model.
【具体实施方式】【Detailed ways】
下面结合附图对本实用新型的实施方式作详细说明。Below in conjunction with accompanying drawing, the embodiment of the present utility model is described in detail.
本实用新型一种处理高盐废水低温冷冻升华设备，包括一低温冷冻单元1、一原料容器7、一原料预冷处理单元9、一制冷/热单元10以及一水蒸气冷凝单元13。原料预冷处理单元9对抽送至低温冷冻单元1内的高盐废水进行预冷处理，制冷/热单元10将相应的冷源及热源输送至温冷冻单元1及水蒸气冷凝单元13上，使得低温冷冻单元1内结冰的高盐废水升华成水蒸气，实现水与盐份分离，以及使输送至水蒸气冷凝单元13内的水蒸气冷凝成液态水。采用本实用新型技术方案，具有工艺简单、高效且成本低的特点。The utility model is a low-temperature freezing and sublimation equipment for treating high-salt wastewater, comprising a low-temperature freezing unit 1 , a raw material container 7 , a raw material precooling treatment unit 9 , a refrigeration/heating unit 10 and a water vapor condensing unit 13 . The raw material pre-cooling unit 9 pre-cools the high-salt wastewater pumped into the low-temperature freezing unit 1, and the cooling/heating unit 10 transports the corresponding cold source and heat source to the warm freezing unit 1 and the water vapor condensing unit 13, so that the low-temperature freezing The frozen high-salt waste water in the unit 1 is sublimated into water vapor, so as to realize the separation of water and salt, and to condense the water vapor sent to the water vapor condensing unit 13 into liquid water. Adopting the technical scheme of the utility model has the characteristics of simple process, high efficiency and low cost.
所述低温冷冻单元1包括用于盛装高盐废水的低温冷冻槽2，所述低温冷冻槽2上方转动设有底部浸在高盐废水中的低温转轮3，低温转轮3内填充有低温冷冻液31，当蘸在低温转轮3底部的高盐废水转动至脱离高盐废水液面时，则结成冰，所述低温冷冻槽2侧设有用于驱动低温转轮3转动的低温转轮驱动电机32，所述低温冷冻槽2上方还设有用于将低温转轮3密封罩住以形成一真空升华腔室4的罩壳5，低温转轮3上的固态冰中的水份在真空升华腔室4内升华为水蒸气，并将盐份残留在低温转轮3上，所述罩壳5侧设有抵接于低温转轮3的用于将残留在低温转轮3表面上的盐份刮除收集的盐份收集机构6，进而实现将高盐废水中的盐份与水进行高效分离。The low-temperature freezing unit 1 includes a low-temperature freezing tank 2 for containing high-salt wastewater. A low-temperature runner 3 with a bottom immersed in high-salt wastewater rotates above the low-temperature freezing tank 2. The low-temperature runner 3 is filled with low-temperature The freezing liquid 31, when the high-salt wastewater dipped in the bottom of the low-temperature runner 3 turns to break away from the liquid surface of the high-salt wastewater, then freezes. Wheel drive motor 32, above the low-temperature freezing tank 2 is also provided with a cover 5 for sealing the low-temperature runner 3 to form a vacuum sublimation chamber 4, and the moisture content in the solid ice on the low-temperature runner 3 is The inside of the vacuum sublimation chamber 4 is sublimated into water vapor, and the salt remains on the low-temperature runner 3 . The salt collection mechanism 6 is scraped and collected to realize the efficient separation of the salt and water in the high-salt wastewater.
所述原料容器7用于盛装及向低温冷冻槽2供给要处理的高盐废水，所述原料容器7与低温冷冻槽2之间连接有用于将原料容器7内的高盐废水抽送至低温冷冻槽2上的原料供给管道8。The raw material container 7 is used for containing and supplying the high-salt wastewater to be treated to the low-temperature freezing tank 2, and there is a connection between the raw material container 7 and the low-temperature freezing tank 2 for pumping the high-salt wastewater in the raw material container 7 to the low-temperature freezing tank. Raw material supply line 8 on tank 2.
所述原料预冷处理单元9用于将抽送至低温冷冻槽2上的高盐废水进行预冷却处理，提高预冷效率，所述原料预冷处理单元9设于原料容器7与低温冷冻槽2之间且通过原料供给管道8分别与原料容器7及低温冷冻槽2连接。The raw material pre-cooling treatment unit 9 is used to pre-cool the high-salt wastewater pumped to the low-temperature freezing tank 2 to improve pre-cooling efficiency. The raw material pre-cooling treatment unit 9 is arranged between the raw material container 7 and the low-temperature freezing tank 2 And it is connected with the raw material container 7 and the cryogenic freezing tank 2 respectively through the raw material supply pipeline 8 .
所述制冷/热单元10与低温冷冻单元1之间连接有用于伸入低温转轮3内且浸没于低温冷冻液31以降低低温转轮3温度的第一制冷盘管11和用于伸入真空升华腔室4内以提高真空升华腔室4内温度的热干空气管道12，第一制冷盘管11伸入低温转轮3内，通过低温冷冻液31，使得蘸在低温转轮3表面上的高盐废水凝结成冰，而伸入真空升华腔室4内的制热管道12，则用于提高真空升华腔室4内的温度，提高低温转轮3上冰块升华效率。The refrigeration/heating unit 10 and the low-temperature freezing unit 1 are connected with a first refrigeration coil 11 for extending into the low-temperature runner 3 and submerged in the low-temperature freezing liquid 31 to lower the temperature of the low-temperature runner 3 and for extending into the low-temperature runner 3 . The hot dry air pipe 12 inside the vacuum sublimation chamber 4 to increase the temperature in the vacuum sublimation chamber 4, the first refrigeration coil 11 extends into the low-temperature runner 3, and passes through the low-temperature freezing liquid 31, so that it is dipped on the surface of the low-temperature runner 3 The high-salt waste water above condenses into ice, and the heating pipe 12 extending into the vacuum sublimation chamber 4 is used to increase the temperature in the vacuum sublimation chamber 4 and improve the sublimation efficiency of ice cubes on the low-temperature runner 3 .
所述水蒸气冷凝单元13与低温冷冻单元1之间连接有伸入真空升华腔室4内以将升华的水蒸气抽送至水蒸气冷凝单元13的水蒸气输送管道14，所述制冷/热单元10与水蒸气冷凝单元13之间还连接有第二制冷盘管15以将水蒸气冷凝单元13内的水蒸气冷凝成液体。Between the water vapor condensing unit 13 and the low-temperature freezing unit 1, there is a water vapor delivery pipeline 14 extending into the vacuum sublimation chamber 4 to pump the sublimated water vapor to the water vapor condensing unit 13. The refrigeration/heating unit A second refrigeration coil 15 is also connected between 10 and the water vapor condensing unit 13 to condense the water vapor in the water vapor condensing unit 13 into liquid.
所述水蒸气冷凝单元13与原料预冷处理单元9之间连接有将水蒸气冷凝单元13产生的冷气或者冷凝水输送至原料预冷处理单元9上以对原料预冷处理单元9内的高盐废水进行预冷的冷凝水管道16。通过原料预冷处理单元9实现对抽送至低温冷冻槽2内的高盐废水进行预冷，提高冷却效率。The cold air or condensed water produced by the steam condensing unit 13 is connected between the steam condensing unit 13 and the raw material pre-cooling treatment unit 9 to transport the high-salt wastewater in the raw material pre-cooling treatment unit 9. Pre-cooled condensate piping 16. The high-salt wastewater pumped into the low-temperature freezing tank 2 is pre-cooled by the raw material pre-cooling treatment unit 9 to improve cooling efficiency.
所述罩壳5内可填充有隔热材料，保证真空升华腔室4内的温度稳定。The casing 5 can be filled with heat insulating material to ensure the temperature stability in the vacuum sublimation chamber 4 .
所述水蒸气输送管道14从罩壳5顶部伸入真空升华腔室4内，以有效地收集并将真空升华腔室4内的水蒸气输送至水蒸气冷凝单元13中。The water vapor delivery pipe 14 extends from the top of the casing 5 into the vacuum sublimation chamber 4 to effectively collect and transport the water vapor in the vacuum sublimation chamber 4 to the water vapor condensing unit 13 .
所述盐份收集机构6包括倾斜设置的刮板61，所述刮板61上端抵接于低温转轮3表面且当低温转轮3转动时以刮除低温转轮3上残留的盐份，所述刮板61下端下方设有用于收集沿着刮板61滑落的盐份的收集板62，所述收集板62中部与罩壳5铰接，所述收集板62朝向外侧一端设有平衡锤63，所述收集板62朝向内侧一端下方设有用于输送盐份的传送带64。当收集板62上收集的盐份达到一定重量后，根据杠杆原理，收集板62上的盐份则撬动收集板62并克服平衡锤63的力矩而绕其上的铰接点转动，以将其上的盐份倒在传送带64上，传动带64则将盐份输送至相应工位上。The salt collection mechanism 6 includes a scraper 61 arranged obliquely. The upper end of the scraper 61 abuts against the surface of the low-temperature runner 3 and scrapes off the residual salt on the low-temperature runner 3 when the low-temperature runner 3 rotates. Below the lower end of the scraper 61 is provided a collection plate 62 for collecting the salt that slides along the scraper 61 , the middle part of the collection plate 62 is hinged to the casing 5 , and a counterweight 63 is provided at the end of the collection plate 62 toward the outside. A conveyer belt 64 for transporting salt is provided under one end of the collecting plate 62 towards the inner side. When the salt collected on the collecting plate 62 reaches a certain weight, according to the principle of leverage, the salt on the collecting plate 62 will pry the collecting plate 62 and overcome the moment of the counterweight 63 to rotate around the hinge point on it to move it The salt on the top is poured on the conveyor belt 64, and the conveyor belt 64 then transports the salt to the corresponding station.
本实用新型工作时，高盐废水灌入至原料容器7中，通过原料供给管道8先原料预冷处理单元9，再输送至低温冷冻槽2内，其中原料预冷处理单元9利用水蒸气冷凝单元13中产生的液态水进行预冷；低温转轮驱动电机32通过链条或皮带则驱动低温转轮3转动，蘸在低温转轮3底部的高盐废水随其转动而离开高盐废水液面，第一制冷盘管11及低温冷冻液31对低温转轮3进行制冷，使得蘸在低温转轮3上的高盐废水凝固结冰；另外通过热干空气管道12对真空升华腔室4进行制热，加快低温转轮3上固态冰中的水份升华为水蒸气而将盐份残留在低温转轮3上，水蒸气输送管道14则将上述水蒸气抽送至水蒸气冷凝单元13内，通过第二制冷盘管15将其液化成液态水，该液态水再通过冷凝水管道16输送至原料预冷处理单元9对高盐废水进行预冷；当低温转轮3上残留的盐份转动至刮板61侧时，刮板61上端则将低温转轮3上的盐份刮除，并沿着刮板61滑落至收集板62上，当收集板62上收集的盐份达到一定重量后，根据杠杆原理，收集板62上的盐份则撬动收集板62并克服平衡锤63的力矩而绕其上的铰接点转动，以将其上的盐份倒在传送带64上，传动带64则将盐份输送至相应工位上。如此循环，实现将高盐废水中的盐份高效地分离，且工艺简单、成本低。When the utility model is working, the high-salt wastewater is poured into the raw material container 7, and the raw material pre-cooling treatment unit 9 is passed through the raw material supply pipeline 8, and then transported to the low-temperature freezing tank 2, wherein the raw material pre-cooling treatment unit 9 utilizes the steam condensation unit 13 The low-temperature runner drive motor 32 drives the low-temperature runner 3 to rotate through a chain or a belt, and the high-salt wastewater dipped in the bottom of the low-temperature runner 3 leaves the liquid surface of the high-salt wastewater as it rotates. A refrigeration coil 11 and a low-temperature refrigerant 31 cool the low-temperature runner 3, so that the high-salt wastewater soaked in the low-temperature runner 3 solidifies and freezes; in addition, the vacuum sublimation chamber 4 is heated through the hot dry air pipeline 12 , accelerate the sublimation of water in the solid ice on the low-temperature runner 3 to water vapor and leave the salt on the low-temperature runner 3, and the water vapor delivery pipeline 14 pumps the above-mentioned water vapor into the water vapor condensing unit 13, through the second The second refrigeration coil 15 liquefies it into liquid water, and the liquid water is transported to the raw material pre-cooling treatment unit 9 through the condensed water pipeline 16 to pre-cool the high-salt wastewater; when the residual salt on the low-temperature runner 3 rotates to the scraper 61 side, the upper end of the scraper 61 scrapes off the salt on the low-temperature runner 3, and slides down to the collecting plate 62 along the scraper 61. When the salt collected on the collecting plate 62 reaches a certain weight, according to the lever Principle, the salt on the collecting plate 62 then pries the collecting plate 62 and overcomes the torque of the counterweight 63 to rotate around the hinge point on it, so as to pour the salt on the conveyor belt 64, and the transmission belt 64 will transfer the salt transported to the corresponding station. Such circulation realizes the efficient separation of the salt in the high-salt wastewater, and the process is simple and the cost is low.
Claims (7)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036228A (en) * | 2015-07-22 | 2015-11-11 | 中山环保产业股份有限公司 | A low-temperature freezing sublimation equipment for treating high-salt wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036228A (en) * | 2015-07-22 | 2015-11-11 | 中山环保产业股份有限公司 | A low-temperature freezing sublimation equipment for treating high-salt wastewater |
| CN105036228B (en) * | 2015-07-22 | 2017-06-13 | 中山市环保产业有限公司 | Low-temperature freezing sublimation equipment for treating high-salinity wastewater |
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