Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low NOx clean combustion type lime production method and device as well as control method of low NOx clean combustion type lime production device

A production device, clean technology, applied in the direction of furnace control device, charging treatment type, lighting and heating equipment, etc., can solve the problems of reducing NOx content and high NOx emission

Inactive Publication Date: 2019-01-01
ZHONGYE-CHANGTIAN INT ENG CO LTD
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lime production method and production device can control the combustion process at the source of NOx generation to reduce the NOx content, which solves the problem of excessive NOx emissions in the lime production process and various shortcomings in the subsequent denitrification process

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
  • Low NOx clean combustion type lime production method and device as well as control method of low NOx clean combustion type lime production device
  • Low NOx clean combustion type lime production method and device as well as control method of low NOx clean combustion type lime production device
  • Low NOx clean combustion type lime production method and device as well as control method of low NOx clean combustion type lime production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] In this article, terms such as "upper, lower, inner, outer" are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may also change accordingly depending on the drawings. It is understood as an absolute limitation on the scope of protection; moreover, relative terms such as "first" and "second" are only used to distinguish one from another component with the same name, and do not necessarily require or No such actual relationship or order between these components is implied.

[0046] The main component of limestone is CaO, which will combine with SOx to form CaSOx during the calcination process, that is, calcium desulfurization, so the whole lime kiln is equiva...

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 low NOx clean combustion type lime production method and a device as well as a control method of the low NOx clean combustion type lime production device. The production method comprises the following steps that combustion-supporting wind required for calcining quicklime is divided into primary air and over fire air, and the primary air is input from the upstream of a fuel input portion to enable a region, corresponding to the fuel input portion, to form a main combustion region for calcining the quicklime; and the over fire air is input from the downstream of the fuel input portion to form a secondary combustion region for calcining the quicklime at the downstream of the main combustion region. For the lime production method and device as well as the control method, through deviation of air-fuel ratio equivalence, combination process control from NOx production sources can be performed to lower the content of NOx, and the problem of too high NOx emission in the lime production process and various disadvantages caused by adopting a subsequent denitration technology are solved.

Description

technical field [0001] The invention relates to lime production equipment in the metallurgical and chemical industry, in particular to a clean burning lime production method and a production device with low NOx emission concentration. The invention also relates to a control method for lime production using the lime production plant. Background technique [0002] In the metallurgical and chemical industry, the so-called lime generally refers to quicklime (CaO), which is made of limestone (main component CaCO 3 ) is calcined at 950°C to 1100°C in a lime kiln to release CO 2 generated after. Lime is an important auxiliary raw material in the metallurgical industry. In the sintering of ironmaking raw materials, ironmaking reduction process, molten iron pretreatment process and external refining process, lime is used as an additive to dephosphorize and desulfurize. The influence on the properties of steel is very important. [0003] Please refer to figure 1 , figure 1 It is...

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
IPC IPC(8): C04B2/12F27D7/02F27D19/00
CPCC04B2/12F27D7/02F27D19/00F27D2007/023F27D2019/0015F27D2019/0043F27D2019/0046F27M2003/03
Inventor 周浩宇王赛辉
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com