用途：

Usage:

W型結晶設備用于制藥中物料攪拌混合，降溫冷凍，成品結晶等作用，結晶罐還廣泛用于乳品行業、食品、化工、飲料等工業，可采用304、316L、鈦材、哈氏合金、內襯PTFE等材料制造，內壁采用電解鏡面拋光或機械拋光，外壁采用304全焊接結構保溫，外表面采用鏡面或或亞光處理。

The crystallization tank is used for mixing and blending materials, cooling and freezing, and finished products crystallizing in pharmaceutical industry. The crystallizing tank is also widely used in dairy, food, chemical, beverage and other industries. It can be made from SS304, SS316L, titanium, Hastelloy, PTFE lined or other material. The inside wall is treated with electrolytic mirror polishing or mechanical polishing while the outside wall uses SS304 full-welding structure to preserve heat, and the outside surface is treated with mirror polishing or matte polishing.

概述：

Summary:

傳統的結晶罐罐體封頭常采用標準橢圓形封頭，外部依靠夾套內的熱流體進行溫度控制。傳統的結構并不能充分的保證罐體內物料混合的充分性和溫度控制的均勻性，尤其是對晶型要求比較高的產品，結晶效果往往不理想。為了對傳統結晶罐的內部結構進行改進，本設計采用W型封頭代替以往常用的標準橢圓形封頭，W型封頭和拉氣筒的共同作用改變了內部的流場形態，有很好的導流效果；保證了物料的充分混合性，避免局部產生過高的溶質飽和度影響結晶效果；并且在罐體內增設了拉氣筒結構。通過拉氣筒和夾套內流過的熱流體共同對罐內物料進行溫度控制，而非傳統結晶罐僅僅靠夾套來控制溫度，這種內外共同控制有效的保證了物料溫度的均勻性，改善了結晶效果；W型封頭和拉氣筒的共同作用改變了內部的流場形態，有很好的導流效果；保證了物料的充分混合性，避免局部產生過高的溶質飽和度影響結晶效果；同時，流場的均勻性顯著改善了槳葉所受載荷的變化，因而有效的降低了攪拌軸損壞的危險；*終的晶型比較均勻。

The head of the traditional crystallization tank is usually the standard ellipsoidal head, and its outside part control the temperature through hot fluid in the jacket. The traditional structure can outside part control the temperature through hot fluid in the jacket. The traditional structure can not sufficiently ensure materials mixed enough and uniformity of temperature control in the tank, especially for those products that have high requirements for crystal form, its crystallizing effect is always not ideal. In order to improve the inside structure of traditional crystallization tank, the standard oval head is replaced by the W-shaped head in the design. and the air cylinder structure is additionally provided in the tank. Temperature control of the materials in the tank is realized through the hot fluid passing the air cylinder and jacket, instead of temperature control only by the jacket in the traditional crystallization tank. This kind of joint control from inside and outside effectively ensures uniformity of material temperature and improves the crystallizing effect. The combination of W-shaped head and the air cylinder changes internal flow flied forms, and realizes good diversion effect, ensure that materials are fully mixed, avoid local too high solute saturation generated that causes bad influence on crystallizing effect. Meanwhile, the even flow field can obviously improve the change of load carried by the blades, so the risk of damaging the mixing shaft is effectively reduced and the final crystal form is more uniform..