Crystallizer

A technology of crystallizer and guide tube, which is applied in the field of crystallizer optimization of the guide tube, can solve the problems of guide tube wear at the inlet and outlet of the guide tube, and does not solve the problems of guide tube broken, so as to reduce abrasion, reduce power, The effect of reducing maintenance frequency

Inactive Publication Date: 2015-06-24
CHANGSHA DESIGN & RES INST OF CHEM IND MIN
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the above-mentioned crystallizers have been greatly improved in terms of structure, circulation form, blade form, etc., they have not solved the problems of crushing the crystallized product by the draft tube, negative pressure at the inlet and outlet of the draft tube, and serious wear of the draft tube.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Crystallizer
  • Crystallizer
  • Crystallizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Reference Figure 1-3 , This embodiment is a crystallizer for producing potassium chloride. The specific operating parameters and technical characteristics are as follows:

[0041] (1) The potassium chloride crystal is DTB type;

[0042] (2) The diameter of the mold body 1 is φ9m, and the diameter of the deflector cylinder 2 is φ3m;

[0043] (3) The upper edge of the diversion tube 2 is welded with a streamlined structure Ⅰ3 with a cross section similar to a "droplet" shape, which is welded by a half pipe Ⅰ3-1, an inclined plate Ⅰ3-2 and the diversion tube 2: half pipe Ⅰ3-1 circle The diameter is φ100mm, the inclined plate Ⅰ3-2 and the deflector tube form 35°;

[0044] (4) The lower edge of the guide tube 2 is welded with a streamlined structure Ⅱ4 with a cross section similar to a "droplet" shape, which is welded by the half pipe Ⅱ4-1, the inclined plate Ⅱ4-2 and the guide tube 2: half pipe Ⅱ4-1 circle The diameter is φ100mm, the inclined plate Ⅱ4-2 and the deflector tube for...

Embodiment 2

[0048] Reference Figure 4-5 This embodiment is a crystallizer for producing carnallite. The specific operating parameters and technical characteristics are as follows:

[0049] (1) The carnallite crystallizer is of DTB type;

[0050] (2) The diameter of the mold body 1 is φ7m, and the diameter of the deflector cylinder 2 is φ2.5m;

[0051] (3) The lower edge of the guide tube 2 is welded with a streamlined structure Ⅲ5 with a cross section similar to a "droplet" shape, which is welded by the half pipe Ⅲ5-1, the inclined plate Ⅲ5-2 and the guide tube 2: half pipe Ⅲ5-1 circle Diameter φ200mm, the inclined plate Ⅲ5-2 and the deflector tube 2 form 30°;

[0052] (4) A three-blade turbine is provided in the guide tube 2 with the flow direction from bottom to top, and the flow direction of the fluid outside the guide tube is from top to bottom.

[0053] In this embodiment, the service life of the guide tube can be prolonged by 3 times, the average crystal size is increased by 38%, and the po...

Embodiment 3

[0055] Reference Figure 6-7 This embodiment is a crystallizer for producing rubidium cesium alum. The specific operating parameters and technical characteristics are as follows:

[0056] (1) The rubidium cesium alum crystallizer is DTB type;

[0057] (2) The diameter of the mold body 1 is φ4.2m, and the diameter of the deflector cylinder 2 is φ1.3m;

[0058] (3) The upper part of the deflector tube 2 is an open structure without a "droplet" structure;

[0059] (4) The lower edge of the guide tube 2 is welded with a streamlined structure Ⅳ6 with a cross-section similar to a "droplet" shape, which is welded by a round tube 6-1 and the guide tube 2: a round tube 6-1 with a diameter of φ100mm;

[0060] (5) A three-blade turbine is provided in the guide tube 2, the flow direction is from bottom to top, and the flow direction of the fluid outside the guide tube is from top to bottom.

[0061] The service life of the guide tube of this embodiment can be extended by 2 times, the average crystal...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
angleaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

A crystallizer comprises a crystallizer body. A guide cylinder is disposed in the crystallizer body. A streamline structure with a section similar to a water drop shape is disposed at the edge of each of the upper portion and the lower portion of the guide cylinder or at the edge of the lower portion of the guide cylinder. The crystallizer has the advantages that crystalline grain breaking is reduced, granularity of crystallized products is increased, the service life of the guide cylinder is prolonged, equipment maintenance rate is lowered, stirrer power is lowered, energy consumption is reduced, and the like.

Description

technical field [0001] The invention relates to a crystallizer, in particular to a crystallizer with an optimized draft tube. Background technique [0002] At present, the common crystallizers are as follows: FC type crystallizer, Oslo type crystallizer, DTB type crystallizer, DP type crystallizer and Messo turbulent flow crystallizer. Among them, the latter four are the most common. [0003] The Oslo crystallizer was proposed by the Norwegians in the 1930s and has been widely used in industry. my country's Dalian, Lianyungang and other places have also built Oslo crystallizers with a production capacity of 10,000 tons, which are used for NH 4 Production of Cl. Although this crystallizer is old and has deficiencies in performance, it is still often selected because people have relatively mature operating experience with it. [0004] DTB crystallizer is a crystallizer with high efficiency that appeared in the 1950s. It was first used in the production of potassium chlorid...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01D9/02
Inventor 程先明戴斌联杨能红杨灿辉申军陈伟来
Owner CHANGSHA DESIGN & RES INST OF CHEM IND MIN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap