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

Large boiler low-temperature flue gas purification waste heat drying bed

A technology for low-temperature flue gas and large-scale boilers, which is applied in the direction of heating to dry solid materials, hearth furnaces, and drying solid materials. It can solve the problems of low utilization rate of flue gas waste heat, unusable low-temperature flue gas, and high cost.

Inactive Publication Date: 2013-11-20
张咸民 +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there is a huge waste of industrial waste heat resources in my country, the utilization rate of flue gas waste heat is low, and the cost is high. Due to the dew point corrosion of low-temperature flue gas, industrial boilers and power plant boilers have to raise the exhaust gas temperature above the smoke dew point.
Although a variety of recycling measures are adopted, the low-temperature flue gas between 40-50 degrees is still unusable

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
  • Large boiler low-temperature flue gas purification waste heat drying bed
  • Large boiler low-temperature flue gas purification waste heat drying bed
  • Large boiler low-temperature flue gas purification waste heat drying bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The working process of the large boiler flue gas purification low-temperature waste heat drying bed of the present invention will be further explained below according to the accompanying drawings. The waste heat is transmitted to the hopper through the flue fins, and the dried material gradually reaches the drying standard through the endothermic warming and volatilization of water vapor. Then in the unloading area, the annular self-unloading device completes the unloading and enters the next step. The disc harrow above the frame plays the role of turning and stirring the material, and prevents the viscous material from agglomerating during the drying process and expands the area of ​​the dry material. The evaporative exhaust pipe and the auxiliary cold air form a convection, which not only accelerates the heat release rate of the low-temperature flue gas, but also accelerates the evaporation of the material moisture. The sulfur dioxide in the flue gas is deposited int...

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 relates to a large boiler low-temperature flue gas purification waste heat drying bed, and belongs to the technical field of boiler low-temperature flue gas waste heat deep utilization. The drying bed is characterized by comprising a framework crossbeam positioned at the middle position of an annular bed body, wherein the upper part of the framework crossbeam bears a ceramic flue; two sides of the framework crossbeam are provided with riding wheels; two ends of the framework crossbeam are connected with framework upright posts, the framework crossbeam and longitudinal and horizontal struts form unit frames, and the unit frames are connected through connecting plates to form a steel structure framework; the flue has a ceramic combination mode, and the traditional desulfurization and dedusting processes are carried out in the ceramic flue; through the corrosion resistance of ceramics, the corrosion of the dew point of the low-temperature flue gas on main parts of a boiler is avoided; and the flue gas can be well cleaned, equipment investment and operating cost are saved, and the low-temperature flue gas waste heat can be deeply utilized. The drying bed has the characteristics that: an annular self-discharging device is utilized; the drying bed is concise in structure, reasonable in design, economic in operation and convenient to maintain and saves land; and a key technology for realizing low-grade flue gas waste heat utilization and developing power station boiler flue gas waste heat integrated utilization is provided.

Description

1. Technical field [0001] The invention relates to a large boiler low-temperature flue gas purification waste heat drying bed, and belongs to the technical field of boiler low-temperature flue gas deep utilization. 2. Background technology [0002] At present, the waste of industrial waste heat resources in my country is huge, the utilization rate of waste heat of flue gas is low, and the cost is high. Due to the dew point corrosion of low temperature flue gas, industrial boilers and power station boilers have to raise the exhaust gas temperature above the smoke dew point. Although a variety of recycling measures are adopted, the low-temperature flue gas between 40-50 degrees is still unusable. 3. Content of the Invention [0003] The present invention aims to solve the above-mentioned problems. In order to realize the deep utilization of low-grade flue gas waste heat, the integrated utilization technology of power station boiler flue gas waste heat is developed. The inv...

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 Patents(China)
IPC IPC(8): F26B3/24F26B21/14F26B25/00F26B25/02B01D53/06
Inventor 张咸民张会芹
Owner 张咸民
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