Efficient seed crystal grading and separating device

Abstract

A # 0 separation plate, a # 1 separation plate and a # 2 separation plate are sequentially arranged in a shell from top to bottom, and the interior of the shell is divided into a drainage chamber, a # 1 seed crystal chamber, a # 2 seed crystal chamber and a clear water chamber which are sequentially distributed from top to bottom through the # 0 separation plate, the # 1 separation plate and the # 2 separation plate; the top of the drainage chamber is provided with a top connector, the top connector is connected with one end of a top main pipe, and the other end of the top main pipe is connected with a sucking pump through a sucking valve; a water inlet device is arranged in the # 1 seed crystal chamber; a # 1 seed crystal discharge interface is formed in the side surface of the bottom of the # 1 seed crystal chamber; a water inlet of the water inlet device is connected with one end of the water inlet main pipe through a water inlet connector, and the other end of the water inlet main pipe is connected with a crystal seed discharging port of the crystallization reactor through a water inlet valve. And immature seed crystals are not recycled.

Description

technical field [0001] The invention relates to a water treatment device, in particular to a high-efficiency fractionation and separation device for crystal seeds. Background technique [0002] Adding seed crystals in the chemical precipitation reaction, inducing nucleation can make the precipitation proceed at a lower supersaturation, improve the reaction efficiency, and the generated precipitates are condensed on the surface of the seed crystals, the particle size of the seed crystals increases, and the mature seed crystals Reuse of resources to reduce the generation of sludge solid waste by-products. After the volume of the seed crystal grows to a certain volume, the volume in the reactor increases and the specific surface area decreases, so it needs to be discharged from the reactor. At present, it is generally discharged through the seed crystal discharge port at the bottom of the reactor relying on gravity, and it is directly transported to downstream users. The heig...

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Problems solved by technology

[0003] The object of the present invention is to overcome the above-mentioned shortcoming of prior art, provide a kind of high-efficiency fractionation and separation device for seed crystals, which can solve the problem that existing devices need to discharge seeds with height difference, the size of the device is limited, it is difficult to arrange on site, and it is difficult for undeveloped Mature seeds have no recycling issues

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