Centrifugal spray drying apparatus capable of preventing catalyst from adhering to walls

A centrifugal spray drying and centrifugal drying technology, used in spray evaporation, evaporator accessories, etc., can solve the problems of sticking to the inner wall of the drying tower, affecting the quality of catalyst powder, and difficulty in continuous operation, so as to avoid material sticking to the wall and disassembly. Easy assembly, maintenance and replacement, good solubility

Active Publication Date: 2016-03-02
南京净微环保科技有限公司
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the spray-drying process of the existing catalyst drying device, the dried material often adheres to the inner wall of the drying tower. Because the material sticking to the wall is difficult to be taken out of the drying tower in time, the sticking material is burnt or burnt. Deterioration affects the quality of the catalyst powder; in order to improve the quality of the product and remove the sticky material in the drying tower, the drying has to be stopped halfway, which results in a long operation cycle, low production efficiency and difficulty in continuous operation

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
  • Centrifugal spray drying apparatus capable of preventing catalyst from adhering to walls
  • Centrifugal spray drying apparatus capable of preventing catalyst from adhering to walls
  • Centrifugal spray drying apparatus capable of preventing catalyst from adhering to walls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: like figure 1 — image 3, a centrifugal spray drying device that can prevent the catalyst from sticking to the wall, including a centrifugal drying tower 1 with a composite structure of a vertical upper cylinder and a lower cone, a feeding device, a heating device, a cooling feeder 7, a dust removal device and an intelligent The control box 15 is provided with a volute hot air distributor 3 and a frequency conversion centrifugal atomizer 2 in the middle of the tower top of the drying tower 1, and the nozzle of the frequency conversion centrifugal atomizer 2 passes through the cone 20 of the volute hot air distributor 3 Extends to the inside of the drying tower 1; the storage tank 4 of the feeding device is connected to the feed port of the frequency conversion centrifugal atomizer 2 through the feed pump 5, and the heating device is connected to the volute hot blast distributor 3 through a hot blast pipeline. The air inlet 18, the cooling feeder 7 is insta...

Embodiment 2

[0021] Example 2: like figure 1 , as an improvement of the present invention, the front end of the heating device is provided with an air filter 96, the air is filtered by the air filter 96 and sent to the electric heater 10 by the blower 8 to be heated to form hot air, and the hot air passes through the spiral The shell hot air distributor 3 enters the drying tower 1 in a spiral state after distribution, and exchanges heat and mass with the atomized material liquid sprayed from the nozzle of the frequency conversion centrifugal atomizer 2 . The coverage radius of the hot air is relatively large and the distribution is relatively uniform, which can fully and effectively combine with the atomized material liquid, and quickly evaporate the moisture in the atomized material liquid. The rest of the structures and advantages are exactly the same as in Embodiment 1.

Embodiment 3

[0022] Example 3: like figure 1 , as an improvement of the present invention, a filter 6 is provided on the feed pipeline between the feed pump 5 and the frequency conversion centrifugal atomizer 2 to filter coarse fibers and large particles in the material to prevent The material blocks the distributor of the frequency conversion centrifugal atomizer 2 and the channel of the atomizing disc 28, so that the material forms a uniform atomized liquid when the material forms droplets and leaves the atomizing disc 28, and improves the uniformity of the catalyst powder or particles. The rest of the structures and advantages are exactly the same as in Embodiment 1.

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

No PUM Login to view more

Abstract

The present invention relates to a centrifugal spray drying apparatus capable of preventing a catalyst from adhering to walls. The apparatus comprises a centrifugal drying tower, a feeding apparatus, a heating apparatus, a cooling feeding device, a dust removal and evacuation apparatus and an intelligent control box; the middle of the top of the drying tower is provided with a volute hot air distributor and a variable frequency centrifugal atomizer, a heating apparatus is connected to an air inlet of the volute hot air distributor via a hot air pipeline, the cooling feeding device is mounted on the bottom of the drying tower, the upper side wall of the inside of the drying tower is provided with a cloth filter chamber, the bottom of the cloth filter chamber is open, the outer side of the drying tower is provided with a cooling sandwich layer, and the intelligent control box is connected to the variable frequency centrifugal atomizer, a material conveying pump, the heating apparatus, the cooling feeding device, an air outlet fan, an induced draft fan and an electric butterfly valve via wires, and working parameters of the whole drying apparatus are controlled accurately. The apparatus is high in drying speed and simple and stable in operation, and the circumstance that materials are adhered to walls is avoided, so that drying quality of the catalyst and the continuity of the drying operation are improved.

Description

technical field [0001] The invention relates to the technical field of catalyst preparation, in particular to a catalyst drying and granulation spray drying device, in particular to a centrifugal spray drying device capable of effectively preventing catalyst materials from sticking to walls in a drying tower. Background technique [0002] Catalysts play an irreplaceable role in the modern chemical industry, and about 80% of chemical reactions are related to the presence of catalysts. Most of the existing catalysts are nano-scale or micron-scale particle powders. There is interfacial tension between the particles and the solution, which is prone to particle aggregation. Therefore, drying is an extremely critical process in the process of preparing catalyst powders by solution reaction. Spray drying is the most common drying technology for drying liquid into powder products in the chemical industry. Its working principle is: spray the material into droplets by spraying and dis...

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): B01D1/18B01D1/20B01D1/30
Inventor 吴敏李伟杰曾平川周宇骋杨黛张仲琨
Owner 南京净微环保科技有限公司
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