A chemical crystallization circulating granulation fluidized bed water treatment device

Abstract

The invention provides a chemical crystallization circulating granulation fluidized bed water treatment device, in which a water distribution area, a drug distribution area, a granulation area and a clear water area are sequentially arranged in the cylinder from the bottom to the top; the inner cylinder divides the granulation area into three The area near the bottom inside the inner cylinder is the fluidization zone, the area near the top inside the inner cylinder is the separation zone, and the interlayer between the inner cylinder and the cylinder body is the static settling zone; the fluidization zone is connected to the seeding tube , the crystal seed circulates between the fluidization zone, the separation zone and the static settling zone, and the ions in the water realize the chemical crystallization cycle granulation during the flow process; the fluidization zone is also connected with the particle discharge pipe, and the chemical crystallization cycle granulation forms The particles in the fluidized zone settle to the bottom and are finally discharged from the particle discharge pipe. The invention has a clear overall structure, compact connection of functional units, high plane utilization rate, convenient operation, can remove a single ion among various ions, and can simultaneously and efficiently remove various ions in water.

Description

technical field [0001] The invention belongs to the field of water treatment and relates to a water treatment device, in particular to a chemical crystallization circulating granulation fluidized bed water treatment device. Background technique [0002] Various soluble cations and anions present in water, such as Ca 2+ , Mg 2+ , Fe 2+ , Mn 2+ 、As 3+ , F - Plasma, when present in a small amount in water, will not affect people's health, and even be beneficial to people. But once it exists in water in excess, it will endanger human health and needs to be removed, such as Ca 2+ , Mg 2+ Exceeding the standard will lead to increased hardness in the water, etc. At present, for the removal of these metal ions, such as Ca 2+ , Mg 2+ Ion exchange method and lime softening method are the most widely used for removal. The cost of ion exchange method is high, it is greatly affected by the quality of raw water, and it is easy to cause secondary pollution. The lime softening met...

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Problems solved by technology

[0003] Based on the problems existing in the prior art, the present invention provides a chemical crystallization circulating granulation fluidized bed water treatment device, which solves the problem that the particles cannot be cyclically grown in the water treatment process, and the particle discharge period is short, resulting in poor water treatment effect.

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