Device for vibration recovery for saline water after condensation crystallization

Abstract

The invention discloses a device for vibration recovery of saline water after condensation crystallization. The device comprises a concentrated heat exchange tank and a crystallizing tank, wherein the concentrated heat exchange tank adopts a jacketed type long barrel-shaped structure composed of an inner barrel and an outer barrel and is longitudinally arranged, a rotating shaft longitudinally penetrates through the inner barrel, and fiber brush bundles are fixed on a bristle drum of the rotating shaft; the inner barrel of the concentrated heat exchange tank is communicated with the outside through an air pipe and an exhaust fan to form an evaporation line; a concentrated heat exchange tank jacket, a water return pipe, a waste hot water pool heat exchanging vertical-pipe of a boiler, a circulating water pump and a water inlet pipe form a heating line; the concentrated heat exchange tank jacket is connected with a water hammer vibrator composed of a crankshaft connecting rod and a piston; a solution to-be-concentrated inlet pipe is arranged at the upper end of the concentrated heat exchange tank, and the lower end of the concentrated heat exchange tank is connected with the crystallizing tank through an inclined bottom slot and a launder; the crystallizing tank adopts a conic bottom structure, and the conic bottom is connected with a filter vibrating screen and the solution to-be-concentrated inlet pipe through mortar pumps. The device is unique and ingenious in design and strong in practicality, is a perfect-function device for vibration recovery of saline water after condensation crystallization, and has a wide application prospect.

Description

technical field [0001] The invention relates to a device for vibrating and recovering brine after concentration and crystallization. Background technique [0002] Sodium chloride is widely used in food, chemical industry, biology, medicine and other fields. These fields will produce thousands of tons of waste brine every day. If it is directly discharged, it will not only waste resources, but more importantly, because sodium chloride is harmful to natural microorganisms The inhibitory effect produced will have serious negative effects on the ecological environment. Scientific research has confirmed that: when the concentration of sodium chloride in the water reaches 1%, it will inhibit the growth and reproduction of most microorganisms; and when the concentration of sodium chloride in the water reaches 4%, most of the degraded COD and BOD Microorganisms cannot survive. [0003] Therefore, the recovery of sodium chloride in waste brine not only has important economic signif...

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Problems solved by technology

Since the solubility of sodium chloride is little affected by temperature, 39.8 grams of sodium chloride can be dissolved per 100 grams of water at 100°C, and 35.7 grams can be dissolved at 0°C. Therefore, generally, it can only be carried out by concentrated crystallization. Recycling, but the prior art lacks a complete set of devices that concentrate and crystallize brine and then vibrate and recycle. The breakthrough of the complete set of devices needs to overcome the small effective heat transfer area and low efficiency of the inner wall of the concentrated heat exchange tank, and it is difficult to separate and remove the crystallization on the inner wall of the concentrated heat exchange tank. , the crystallization tank is easy to block and many other technical bottlenecks

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