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Method and apparatus for controlling sludge incineration fine particles by using boron nitride

A fine particle and sludge incineration technology, which is applied in the direction of chemical instruments and methods, separation methods, combined devices, etc., to achieve good auxiliary and synergistic effects, large specific surface area, and reduce device investment

Active Publication Date: 2019-08-30
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the adsorption of heavy metals and boron nitride, fine particles exist as both the adsorbent and the adsorbed substance, making the application of the three of them more likely

Method used

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  • Method and apparatus for controlling sludge incineration fine particles by using boron nitride
  • Method and apparatus for controlling sludge incineration fine particles by using boron nitride
  • Method and apparatus for controlling sludge incineration fine particles by using boron nitride

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Effect test

Embodiment 1

[0033] A method for utilizing boron nitride to control sludge incineration fine particles, comprising the steps of:

[0034] (1) Synthesis of fine particulate matter (PM10)

[0035] Mineral fine particles (PM10) were synthesized according to the composition of sludge incineration fine particles (except heavy metals). Under the condition that the total percentage of mineral particle components was stable at 88%, the components of each particle were selected in order, followed by CaO: 17 %, SiO2: 15%, Fe2O3: 29%, Al2O3: 19%, MgO: 2.5%, P2O5: 5%, K2O: 0.5%; since other components account for 88% of fine particles except heavy metals, so, equipped 4.4g fine particle sample 5g×0.88=4.4g, according to the proportion of the above-mentioned mineral particles, mix the component powders of each mineral particle together, shake the oscillator for 20min, add organic flocculant to make it agglomerate The particles are then ground in a grinder, and blown into the ELPI by a blower to collec...

Embodiment 2

[0047] A method for utilizing boron nitride to control sludge incineration fine particles, comprising the steps of:

[0048] (1) Synthesis of fine particulate matter (PM10)

[0049] Fine particulate matter (PM10) was synthesized according to the composition of sludge incineration particulate matter (except heavy metals). Under the condition that the total percentage of mineral particulate matter was stable at 88%, the components of each particulate matter were selected in order, followed by CaO (18%), SiO2 (16%), Fe2O3 (28%), Al2O3 (18%), MgO (1.5%), P2O5 (5%), K2O (1.5%); due to fine particles except heavy metals, other components account for 88% , so, prepare 4.4g mineral fine particle sample (5g×0.88=4.4g), mix each mineral particle component powder together, add organic flocculant after vibrating for 30min, make it agglomerate into particle, then grind Grinding is carried out in the machine, and the blower is used to blow into ELPI to collect fine particles with a particl...

Embodiment 3

[0057] A method for utilizing boron nitride to control sludge incineration fine particles, comprising the steps of:

[0058] (1) Synthesis of fine particulate matter (PM10)

[0059] According to the composition of sludge incineration particles (except heavy metals) to synthesize fine particles (PM10), under the condition that the total percentage of particle components is stable at 88%, the components of mineral particles are selected in order, followed by CaO (19%), SiO 2 (17%), Fe 2 o 3 (29%), Al 2 o 3 (17%), MgO (1%), P 2 o 5 (4%), K 2 O (1%); since in the fine particles except heavy metals, other components account for 88%, so a 4.4g sample of fine particles (5g×0.88=4.4g) is equipped, and the powders of each particle component are mixed together, and the oscillator shakes After 40 minutes, add an organic flocculant to agglomerate them into particles, then grind them in a grinder, and use a blower to blow into ELPI to collect fine particles with a particle size of ...

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Abstract

The invention relates to a method for treating fine particles in sludge incineration flue gas, and proposes the potential of the fine particles in the adsorption aspect. The competitive adsorption ofa high-temperature adsorbent boron nitride on heavy metals and fine particles is utilized, and the inhibition of boron nitride on intermediates in the formation of the fine particles is utilized, so that the problem of fine particle capturing and discharging is solved. Specifically, the invention provides a method for controlling sludge incineration fine particles, and provides an apparatus adopted in the method for particle removal in accordance with another aspect of the invention.

Description

technical field [0001] The invention relates to a treatment method for fine particles in flue gas of sludge incineration, and proposes the potential of fine particles in adsorption. Use the competitive adsorption of boron nitride, a high-temperature adsorbent, for heavy metals and fine particles, and the adsorption of boron nitride for intermediates in the process of fine particle generation, to solve the problem of fine particle capture and emission, and specifically provide a method that utilizes nitrogen A method for controlling fine particulate matter in sludge incineration with boron chloride, and a device used in the method. Background technique [0002] At present, the commonly used particle treatment methods are basically based on physical collision and partition, including electrostatic precipitator, bag filter and so on. However, the removal efficiency of the above methods is high enough for particles with a relatively large particle size, and the treatment effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/02B01J20/28B01J20/30B01D53/02B01D50/00F23J15/00
CPCB01J20/0248B01J20/0259B01J20/28011B01J20/30B01J20/3021B01J20/3078B01D53/02B01D50/00F23J15/003F23J15/025B01D2257/60B01D2258/0283
Inventor 李润东满佳琪房振全李彦龙刘菲菲
Owner SHENYANG AEROSPACE UNIVERSITY
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