Method for preventing burning explosion of ammonium nitrate in nitrate-sulfur-based compound fertilizer tower granulation production process

A technology of nitrosulfur-based compound fertilizer and high-tower granulation, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of poor stability of mixed materials, no safety design, hidden dangers of construction sites and construction workers, etc. Reduced catalysis, reduced risk of thermal runaway, reduced contact time effects

Active Publication Date: 2015-12-30
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the potassium chloride added in the nitrosulfur-based compound fertilizer has a catalytic effect on the decomposition of ammonium nitrate, so the stability of the mixed material is even worse. At this time, ammonium nitrate is more likely to decompose and cause explosion accidents.
Similar accidents have occurred in China. At present, there are more than 100 sets of high-tower melting and granulation equipment in China, most of which have not gone through detailed safety design, which brings great safety hazards to the construction site and construction personnel.

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
  • Method for preventing burning explosion of ammonium nitrate in nitrate-sulfur-based compound fertilizer tower granulation production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to these embodiments.

[0036] Such asfigure 1 As shown, a device for preventing the explosion of ammonium nitrate in the high-tower granulation production process of nitrosulfur-based compound fertilizer, including an over-temperature alarm interlock protection system, a heating steam supply part, a water supply part, a belt feeder and sequentially connected Middle tank 8, melter 21, No. 1 mixing tank 13, No. 2 mixing tank 14, homomixer 18, granulator 20, ammonium nitrate is sent into middle tank 8, melter 21, No. 1 mixing tank 13, No. 2 mixing tank 14, granulator 20.

[0037] The middle tank 8, the melter 21, the No. 1 mixing tank 13, and the No. 2 mixing tank 14 are respectively connected to the heating steam supply part through the heating steam delivery pipeline, and a heating steam valve 3 ...

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 invention discloses a method for preventing burning explosion of ammonium nitrate in a nitrate-sulfur-based compound fertilizer tower granulation production process. According to the method, an over-temperature alarm interlock protection system is arranged on a device for preventing burning explosion of ammonium nitrate in the nitrate-sulfur-based compound fertilizer tower granulation production process to perform real-time temperature monitoring on all reactors on a production line, and the material addition sequence is changed to shorten the contact time of potassium chloride and ammonium nitrate. By means of the method, the catalytic action of potassium chloride on ammonium nitrate is reduced, the probability of burning explosion is lowered, and the safety of the nitrate-sulfur-based compound fertilizer tower granulation production process is improved.

Description

technical field [0001] The invention belongs to the safety technical field of the process of producing nitrosulfur-based compound fertilizer by high-tower granulation, and in particular relates to a method for preventing ammonium nitrate from detonating in the process of producing nitrosulfur-based compound fertilizer by high-tower granulation. Background technique [0002] Ammonium nitrate is the main raw material in the production of nitrosulfur-based compound fertilizer by high-tower melting granulation. Ammonium nitrate is a widely used substance, which can be used as an important raw material for agricultural fertilizers, and is also a strong oxidant and self-reactive substance . At normal temperature, ammonium nitrate is stable, but with the increase of temperature and the action of certain impurities, its physical and chemical properties will be seriously affected or changed, resulting in instability of the system and even explosion. The major explosion accidents rel...

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): C05G1/00
Inventor 文松石宁姜杰赵磊
Owner CHINA PETROLEUM & CHEM CORP
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