強制循環(huán)蒸發(fā)結晶器

一、概 述：

強制循環(huán)蒸發(fā)結晶器又稱FC( Forced Circulation ）型結晶器，是一種可以連續(xù)生產的通用型結晶設備，廣泛應用于化工、輕工、醫(yī)藥等行業(yè)的生產以及環(huán)保行業(yè)廢水蒸發(fā)結晶處理。根據料液性質的不同，F(xiàn)C型結晶器分為加熱蒸發(fā)型、間壁冷卻型或真空冷卻型等以滿足各種結晶工藝的需要。

強制循環(huán)蒸發(fā)結晶器是由加熱器對待處理的料液進行加熱進入結晶分離室蒸發(fā)分離，溶液達到過飽和狀態(tài)便產生結晶現(xiàn)象，由強制循環(huán)泵經多次循環(huán)加熱后結晶室內過飽和溶液沉浸在懸浮晶粒表面上，使晶體逐漸長大，當晶體數(shù)量達到一定濃度時即可將晶漿排出另作處理。強制循環(huán)蒸發(fā)結晶器具有生產能力大，產品的粒度分布較寬，約在0.8~4mm 的范圍，適應各種物料的結晶等特點。

二、結構組成：

強制循環(huán)蒸發(fā)結晶器主要由換熱器、結晶分離室、冷凝器、循環(huán)管、循環(huán)泵、晶漿泵、真空泵、控制系統(tǒng)等組成；按物料濃度高低與生產能力的大小不同，可分為一效、二效、三效、四效強制循環(huán)蒸發(fā)器。

三、設備規(guī)格：

四、設備圖片：

Forced Type Circulation Evaporation Crystallizer

I. Introduction

Forced Circulation Evaporation Crystallizer is a kind of continuous crystallizer with crystal slurry circulation. On production, raw solution feed from bottom of circulation pipeline,and then mixed with crystal slurry which left from bottom of crystallizer, the mixed fluid will be pumped into the heat exchanger,it will increase temperature in the heater (normal increase 2-6℃),but it will not evaporation. Once hot crystal slurry flow into crystallization chamber,after boiling, it will reached super saturation,so parts of solute sedimentate on the surface of suspended crystal, and then grow bigger,finally discharge out from the top of circulation tubes. FC Crystallizer have large production capacity, but product size dimension arranged widely.

II. Structure Component

Forced Circulation Crystallizer consist of Crystallization Chamber, circulation tubes, circulation pump and heat exchanger etc.

Crystallization Chamber designed with cone type bottom,crystal slurry discharge out from the cone bottom,pumped into the heat exchanger by Axial Flow pump through circulation tubes,after heating or cooling,re-back into the crystallization chamber,it will continue having such circulation running.that’s the reason it called crysta-slurry circulation type.crystal slurry discharge let is near the bottom of crystallization chamber,and feed let is lower then discharge level.

III. Usage

Forced Circulation Evaporation Crystallizer widely used in the industry of chemical, light industry,pharmacy etc, for product manufacturing and waste water treatment. FC type Crystallizer could work for evaporation crystallization, batch cooling crystallization or vacuum cooling crystallization. Product size dimension during the range of 0.8-4mm.