Method for microwave heating detoxication for flying ash from incineration of refuse
A technology of waste incineration fly ash and microwave heating, which is used in the removal of solid waste and other directions to achieve the effect of high speed and low energy consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0026] Example one
[0027] Take the waste incineration fly ash and place it in the fly ash storage tank, and use scanning inductively coupled plasma emission spectroscopy (ICP-AES) to determine the type and quantity of heavy metals in the waste incineration fly ash. The measurement results are shown in Table 1.
[0028] Table 1
[0029]
[0030] It can be seen from Table 1 that the leaching toxicity of various heavy metals contained in it is lower than the solid waste leaching toxicity identification standard (GB5085.3-1996), which meets the emission requirements. It only needs to use microwave heating to decompose and remove dioxins from waste incineration fly ash. The feed rate and the discharge rate are both 2.5t / h, the heating temperature is 850℃, and the residence time of fly ash in the microwave heater is 10min. The waste incineration fly ash flows from the bottom of the fly ash storage tank into the feeder, and then enters the microwave heater from the discharge port of ...
Example Embodiment
[0039] Example two
[0040] Take the waste incineration fly ash and place it in the fly ash storage tank. The types and amounts of heavy metals in the incineration fly ash are determined by scanning inductively coupled plasma emission spectroscopy (ICP-AES). The measurement results are shown in Table 4.
[0041] Table 4
[0042]
[0043] It can be seen from Table 4 that the leaching toxicity of various heavy metals contained is higher than the identification standard of solid waste leaching toxicity (GB5085.3-1996). The feed rate and discharge rate are set to be 0.2t / h, the heating temperature is 1200℃, and the residence time of fly ash in the microwave heater is 60min. The fly ash flows out from the bottom of the fly ash storage tank into the feeder, and then is fed into the microwave heater from the discharge port of the feeder. When the first batch of 10kg of fly ash enters the microwave heater, the microwave power supply is started and the feeder is stopped. Feeding, after t...
Example Embodiment
[0051] Example three
[0052] Take the waste incineration fly ash and place it in the fly ash storage tank. The types and quantities of heavy metals in the incineration fly ash are determined by scanning inductively coupled plasma emission spectroscopy (ICP-AES). The measurement results are shown in Table 7.
[0053] Table 7
[0054]
[0055] It can be seen from Table 7 that the leaching toxicity of only two heavy metals, Zn and Pb, is higher than the identification standard for leaching toxicity of solid waste (GB5085.3-1996). The waste incineration fly ash sample is the most representative in China. The ash is placed in a fly ash storage tank. Set the feeding rate and the discharging rate to be 1.0t / h, the heating temperature is 1000℃, and the residence time of fly ash in the microwave heater is 30min. The fly ash flows out from the bottom of the fly ash storage tank into the feeder, and then enters the microwave heater through the discharge port of the feeder. When the first ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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