CN108465351A - Flyash drier and preparation method thereof - Google Patents
Flyash drier and preparation method thereof Download PDFInfo
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- CN108465351A CN108465351A CN201810443136.8A CN201810443136A CN108465351A CN 108465351 A CN108465351 A CN 108465351A CN 201810443136 A CN201810443136 A CN 201810443136A CN 108465351 A CN108465351 A CN 108465351A
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- Prior art keywords
- flyash
- ative starch
- cassava ative
- drier
- preparation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of flyash drier and preparation method thereof.The flyash drier is by flyash and cassava ative starch by 95%：5% mass percentage composition；Preparation method is：Take flyash and cassava ative starch, be separately dried to water content≤5%, take out, by formula weigh it is dry after flyash and cassava ative starch, be uniformly mixed to get.Compared with prior art, the present invention is modified flyash using cassava ative starch, and one side modifying agent is cheap and easy to get；On the other hand, it is only necessary to which cassava ative starch progress physical mixed, which is added, can effectively improve the moisture pick-up properties of flyash.
Description
Technical field
The present invention relates to a kind of drier, and in particular to a kind of flyash drier and preparation method thereof.
Background technology
In China, common municipal solid waste include garbage, paper, plastics, fabric, metal, glass, pottery,
Brick and stone, battery and discarded household electrical appliance.Waste incineration and generating electricity is the garbage disposal that China more meets actual demand
Mode is also favored by market.Data are shown, by the end of the year in 2016, national operation domestic garbage burning electricity generation project 273
A, installed capacity is up to 5,430,000 kilowatts, and about 29,800,000,000 kilowatt hour of annual electricity generating capacity, it is more than 80,000,000 tons that year, which handles quantity of refuse, accounts for the whole nation
The proportion of the application of city life garbage amount of clearing is more than 30%, and waste incineration and generating electricity installed capacity, generated energy and garbage treatment quantity occupy
The first in the world.
The solid waste of garbage incinerating power plant includes mainly two classes：Clinker (also referred to as bottom ash, BA, MSWI etc.) and fine coal
Ash (also referred to as flying dust, MSWI, FA etc.), yield is about the 17% of garbage treatment quantity.Wherein flyash is in canescence or dark-grey
The fine powder of color, have moisture content it is low, generally in the indefinite shape state such as rodlike, polygonal matter shape, flocculence, spherical；Its particle
Particle size differs, and has the characteristics that porosity height, large specific surface area.There are two types of the approach for generating flyash at present, first, combustion
Coal method, second is that waste incineration method.In the prior art, mainly there are following three kinds to the processing of flyash：
(1) stabilization processes：By adding special chemical article, the solvable harmful heavy metal in ash is made to be aoxidized or be gone back
It is former.
(2) curing process：Ash particle is contained into isolation by adding cementation solidifying base material, formation intensity is suitable, and hole is oozed
Firming body of good performance.Mostly use cement solidification at present.
(3) landfill disposal is carried out.
However, more or less all there is appropriation of land, the harm such as contaminated soil, water body and air, Wu Fashi in above-mentioned processing
Existing environment-friendly and green processing.And flyash is directly used as drier, moisture pick-up properties is not ideal enough, it is expected that finding one kind passing through letter
The method that flyash moisture pick-up properties can be effectively improved after single additive progress physical mixed.
Invention content
The technical problem to be solved in the present invention is to provide a kind of flyash drier and preparation method thereof, sides of the present invention
Method can effectively improve the moisture pick-up properties of flyash by the way that additive progress physical mixed is added.
In order to solve the above technical problems, flyash drier provided by the invention, be by flyash and cassava ative starch by
95%：5% mass percentage composition.
The preparation method of environmental protection flyash drier of the present invention is：Flyash and cassava ative starch are taken, is done respectively
It is dry to take out to water content≤5%, by formula weigh it is dry after flyash and cassava ative starch, be uniformly mixed to get.
In above-mentioned preparation method, it is 3-4% typically to dry flyash and cassava ative starch to water content, be can be used existing
There is routine techniques that flyash, egg shell and Nixing pottery is dried, is done under the conditions of they are preferably placed in 100-120 DEG C
It is dry.
In above-mentioned preparation method, after the completion of roasting and after taking out sample, if sample forms bulk, after preferably crushing again
It is weighed by formula.
Compared with prior art, the present invention is modified flyash using cassava ative starch, and one side modifying agent is cheap
It is easy to get；On the other hand, it is only necessary to which cassava ative starch progress physical mixed, which is added, can effectively improve the moisture pick-up properties of flyash.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail, to more fully understand present disclosure, but
The present invention is not limited to following embodiments.
Used raw material flyash is the secondary waste object in Qiezhou solid waste power plant in following embodiment
Flyash (is generated) by waste incineration method, and mainly composition is as described in Table 1：
Table 1：
Embodiment 1
Flyash and cassava ative starch are taken, it is 5% to be dried under the conditions of 120 DEG C to water content, is taken out, respectively powder
It is broken, then press 95%：5% mass percent weighs flyash and cassava ative starch, be uniformly mixed to get.
Comparative example 1
Embodiment 1 is repeated, unlike, by 85%：15% mass percent weighs flyash and cassava ative starch, mixes
Close uniformly to get.
Comparative example 2
Embodiment 1 is repeated, unlike, by 75%：25% mass percent weighs flyash and cassava ative starch, mixes
Close uniformly to get.
Comparative example 3
Embodiment 1 is repeated, unlike, by 65%：35% mass percent weighs flyash and cassava ative starch, mixes
Close uniformly to get.
Comparative example 4
Embodiment 1 is repeated, unlike, by 97%：3% mass percent weighs flyash and cassava ative starch, mixes
Close uniformly to get.
Comparative example 5
Take flyash under the conditions of 120 DEG C dry to water content be 5%, take out, crush to get.
Embodiment 2
Embodiment 1 is repeated, unlike, flyash and cassava ative starch are dried under the conditions of 110 DEG C to aqueous
Amount is 3%.
Embodiment 3
Embodiment 1 is repeated, unlike, flyash and cassava ative starch are dried under the conditions of 100 DEG C to aqueous
Amount is 4%.
Experimental example 1：The measurement of hydroscopicity
Weigh respectively about 1g embodiment 1 and comparative example 1-5 made from sample be placed in space size, temperature and relative humidity
It in the environment of all same, places for 24 hours, weighs after taking-up, calculate hydroscopicity by following formula (1), as a result as described in Table 2.
m 1Weight before absorbing water for sample, m2Weight after absorbing water for sample.
Table 2：
| Embodiment | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 |
| m1/g | 1 | 1 | 1 | 1 | 1 | 0.95 |
| m2/g | 1.44 | 1.23 | 1.29 | 1.27 | 1.32 | 1.18 |
| Hydroscopicity/% | 44 | 23 | 29 | 27 | 32 | 24 |
As shown in Table 2, the hydroscopicity of the 1 more individual flyash of gained sample of embodiment improves 20%.
Claims (3)
1. a kind of flyash drier, it is characterised in that：It presses 95% by flyash and cassava ative starch：5% quality percentage
Than composition.
2. the preparation method of flyash drier described in claim 1, it is characterised in that：Flyash and cassava ative starch are taken, point
Gan Zao not be taken out to water content≤5%, by formula weigh it is dry after flyash and cassava ative starch, be uniformly mixed to get.
3. preparation method according to claim 2, it is characterised in that：Flyash and cassava ative starch are placed in 100-120
It is dry under the conditions of DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443136.8A CN108465351A (en) | 2018-05-10 | 2018-05-10 | Flyash drier and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443136.8A CN108465351A (en) | 2018-05-10 | 2018-05-10 | Flyash drier and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108465351A true CN108465351A (en) | 2018-08-31 |
Family
ID=63260996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810443136.8A Pending CN108465351A (en) | 2018-05-10 | 2018-05-10 | Flyash drier and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108465351A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328208A (en) * | 2019-05-30 | 2019-10-15 | 昌鑫生态科技(陕西)有限公司 | The innoxious recovery and utilization technology of flyash |
| CN110756021A (en) * | 2019-11-13 | 2020-02-07 | 徐州沿湖粮油储备库 | Drying agent with anti-static function for grain bin |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61185313A (en) * | 1985-02-08 | 1986-08-19 | Sekisui Chem Co Ltd | Composite sheet and dehumidification device |
| CN1470320A (en) * | 2002-07-25 | 2004-01-28 | 煤炭科学研究总院杭州环境保护研究所 | Low-cost deodorizing desiccant and its preparing method |
| CN1930954A (en) * | 2006-01-10 | 2007-03-21 | 马亮 | Puffed granular cat sand |
| CN102085446A (en) * | 2009-12-03 | 2011-06-08 | 济南开发区星火科学技术研究院 | Production line for preparing drying agent by using fly ash |
| CN106902695A (en) * | 2017-03-14 | 2017-06-30 | 上海帆煜自动化科技有限公司 | A kind of preparation system of environmentally friendly drier |
-
2018
- 2018-05-10 CN CN201810443136.8A patent/CN108465351A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61185313A (en) * | 1985-02-08 | 1986-08-19 | Sekisui Chem Co Ltd | Composite sheet and dehumidification device |
| CN1470320A (en) * | 2002-07-25 | 2004-01-28 | 煤炭科学研究总院杭州环境保护研究所 | Low-cost deodorizing desiccant and its preparing method |
| CN1930954A (en) * | 2006-01-10 | 2007-03-21 | 马亮 | Puffed granular cat sand |
| CN102085446A (en) * | 2009-12-03 | 2011-06-08 | 济南开发区星火科学技术研究院 | Production line for preparing drying agent by using fly ash |
| CN106902695A (en) * | 2017-03-14 | 2017-06-30 | 上海帆煜自动化科技有限公司 | A kind of preparation system of environmentally friendly drier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328208A (en) * | 2019-05-30 | 2019-10-15 | 昌鑫生态科技(陕西)有限公司 | The innoxious recovery and utilization technology of flyash |
| CN110756021A (en) * | 2019-11-13 | 2020-02-07 | 徐州沿湖粮油储备库 | Drying agent with anti-static function for grain bin |
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Application publication date: 20180831 |