Induced crystallization heterogeneous nucleation device

Abstract

The invention provides an induced crystallization heterogeneous nucleation device. The induced crystallization heterogeneous nucleation device comprises a water collecting area (1), a circulating crystallization area (2) and a filtering area (3) which are arranged from top to bottom and also comprises a power system (4) arranged on the outer side of the bottom of the filtering area (3) and supporting legs (5) arranged on the outer side of the bottom of the filtering area (3), wherein the water collecting area (1), the circulating crystallization area (2) and the filtering area (3) form an integrated structure; the filtering area (3) comprises a filtering outer cavity (31), a filtering inner cavity (32), a medicine distribution part (33), a sucking and mud discharging part (34) and a waterinlet part (35). The integrated design thought is adopted in the device, the scale inhibitor stability breaking function is achieved, SS in circulating water blowdown water can be greatly precipitatedand intercepted, and cleaner inlet water is provided for follow-up reaction; the sucking and mud discharging part can rotate and downwards clean dirt and blockage substances on a filter screen, and shutdown is not needed; the circulating sewage is subjected to induced crystallization reaction, so that the concentration of calcium ions in a water body can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a heterogeneous nucleation device for induced crystallization. Background technique [0002] After the concentration ratio of the circulating water system of the current thermal power plant is increased, the amount of circulating sewage water is reduced, and at the same time, the quality of the circulating sewage water is deteriorating. The usual process for treating circulating sewage is high-density sedimentation tank→variable pore filter→ultrafiltration→reverse osmosis process. Due to the low filtration rate, high-density sedimentation tank often requires a larger tank body, so it requires a larger area area. At the same time, since a large amount of antiscalants are added to the circulating water to control the scaling tendency of the circulating water, the circulating sewage often contains a large amount of antiscalants, and the presence of the antiscalants affects ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, a security filter is often used to intercept the SS of the water coming from the crystallization equipment. The following three defects are found in practical applications: First, the filter element of the security filter has a limited service life. The filter element needs to be replaced manually; the second is that when the filter element is replaced manually, the system needs to be shut down; the third is that the filter element that intercepts the pollutants often forms new pollutants that are difficult to handle after being discarded

Images