CN104310824B - A kind of method of rapid draing desulfurated plaster - Google Patents
A kind of method of rapid draing desulfurated plaster Download PDFInfo
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- CN104310824B CN104310824B CN201410505262.3A CN201410505262A CN104310824B CN 104310824 B CN104310824 B CN 104310824B CN 201410505262 A CN201410505262 A CN 201410505262A CN 104310824 B CN104310824 B CN 104310824B
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- desulfurated plaster
- additive
- weight
- rapid draing
- raw material
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Abstract
A kind of method that the invention discloses rapid draing desulfurated plaster, comprises the following steps: by additive by weight 1.0～2.0%, join in desulfurated plaster；Being stirred for uniformly, placement to desulfurated plaster reaches to be dried and requires the most naturally.The present invention utilizes the additive that industrial residue is raw material, it is not necessary to consume conventional energy resource.This additive production technology is simple, and raw material is industrial residue, while reaching industrial waste residue resourceization utilization, saves the energy.Easy and simple to handle, i.e. can reach dehydration purpose under nature, the most effective, the operation cycle is short, and owing to admixture dosage is low, the performance of product will not be changed.
Description
Technical field
The present invention relates to a kind of desulfurated plaster drying means, in particular a kind of quick
The method of drying desulfurized gypsum.
Background technology
The equipment such as the boiler of power plant, steam power plant or other industrial enterprises or reacting furnace are with fire coal
As the energy, fired coal combustion produces sulfur-bearing harmful smoke, mainly titanium dioxide in process of production
Sulphur.At present, atmosphere pollution, the environment in creation clear water blue sky are reduced what China carried out on a large scale
In protection engineering, the discharge rich and influential family of many sulfur dioxide is implementing flue gas desulfurization project, especially
Especially prominent with Coal-fired Thermal Power flue gas desulfurization.The power plant that the most newly-built still change, extends and
The sulfur dioxide (SO2) emissions enterprise of his fire coal, in the flue gas desulfurization project implemented, to use stone
Lime stone-gypsum wet flue gas desulfurizing technique is the most universal.
Desulfurated plaster is mainly presented in calcium sulphate dihydrate, but flue gas desulfurization technique mistake
In the desulfurated plaster containing free water produced in journey, free water content is typically at 8%～15% this model
In enclosing, still cannot directly use, need to solve the follow-up technical problem dehydrated, finally
Make desulfurated plaster be changed into the product that free water water content is relatively low, can be used as cement retarder afterwards
Or become the raw material of other industry, reach wet desulphurization byproduct resource recycling want
Ask.Traditional desulfurated plaster drying means uses the method for heating, drying, it is common that after pulverizing
Material send into calcining furnace, fluidized bed furnace, rotary kiln and intermittently or serially the equipment such as marmite heat
It is dried, consumes substantial amounts of fire coal or electric power.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of rapid draing takes off
The method of sulphur gypsum, can realize the fast rapid-curing cutback to desulfurated plaster by adding a small amount of additive
Dry.
The present invention is achieved by the following technical solutions, and the present invention comprises the following steps:
(1) by additive by weight 1.0～2.0%, join in desulfurated plaster；
(2) it is stirred for uniformly, the most naturally places and reach to be dried requirement i.e. to desulfurated plaster
Can.
Described additive includes slag 40%～60%, quick lime 10%～20%, grog 2%～20%,
Gypsum 5%～15%, exciting agent 1～3%, remaining is impurity, by weight.
The additive of the present invention be mainly composed of industrial residue, in additive, exciting agent is bright
Alum and triethanolamine mix according to weight ratio 1:1.After water met by additive, can be fast with moisture
Speed reaction, the hydrated product of formation contains the substantial amounts of crystallization water, thus Free water is converted into knot
Heshui, reaches mummification purpose.
The present invention has the advantage that the present invention utilizes industrial residue for raw material compared to existing technology
Additive, it is not necessary to consume conventional energy resource.This additive production technology is simple, and raw material is industry
Waste residue, while reaching industrial waste residue resourceization utilization, saves the energy.Easy and simple to handle, natural
Dehydration purpose is i.e. can reach under state, the most effective, the operation cycle is short, and due to additional
Agent volume is low, will not change the performance of product.
Detailed description of the invention
Elaborating embodiments of the invention below, the present embodiment is with the technology of the present invention side
Implement under premised on case, give detailed embodiment and concrete operating process, but
Protection scope of the present invention is not limited to following embodiment.
Embodiment 1
The present embodiment comprises the following steps:
(1) by additive by weight 1.0%, joining in desulfurated plaster, additive includes
Slag 40%, quick lime 10%, grog 2%, gypsum 5%, exciting agent 1%, remaining is impurity,
By weight, exciting agent is alum and triethanolamine mixes according to weight ratio 1:1；
(2) it is stirred for uniformly, the most naturally places 3h, 24h, 48h, measure de-respectively
The water content of sulphur gypsum.
Embodiment 2
Additive by weight 1.5% in the present embodiment, additive includes slag 60%, quick lime
20%, grog 20%, gypsum 15%, exciting agent 3%, remaining is impurity, by weight, its
His embodiment is identical with embodiment 1.
Embodiment 3
Additive by weight 2.0% in the present embodiment, additive includes slag 50%, quick lime
15%, grog 10%, gypsum 10%, exciting agent 2%, remaining is impurity, by weight, its
His embodiment is identical with embodiment 1.
Desulfurated plaster under embodiment 1, embodiment 2 and embodiment 3 different addition quantity additive is contained
Water yield change is as shown in table 1:
Desulfurated plaster water content under table 1 different addition quantity additive
Analyze from table 1, fill water content after the desulfurated plaster mummification 24h after 1.0% additive
Can be reduced to 1.30%, the most more satisfactory, can be used for desulfurated plaster subsequent treatment dispose and
Recycling.Compared with furnace drying method, the present invention reaches rapid draing desulfurated plaster purpose,
Save the energy simultaneously, reduce cost.
Claims (1)
1. the method for a rapid draing desulfurated plaster, it is characterised in that comprise the following steps:
(1) by additive by weight 1.0～2.0%, join in desulfurated plaster；
(2) it is stirred for uniformly, the most naturally places and reach to be dried requirement i.e. to desulfurated plaster
Can；
Described additive includes slag 40%～60%, quick lime 10%～20%, grog 2%～20%,
Gypsum 5%～15%, exciting agent 1～3%, remaining is impurity, by weight；Described exciting agent
Mixed according to weight ratio 1:1 by alum and triethanolamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410505262.3A CN104310824B (en) | 2014-09-26 | 2014-09-26 | A kind of method of rapid draing desulfurated plaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410505262.3A CN104310824B (en) | 2014-09-26 | 2014-09-26 | A kind of method of rapid draing desulfurated plaster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104310824A CN104310824A (en) | 2015-01-28 |
| CN104310824B true CN104310824B (en) | 2016-09-07 |
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ID=52366175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410505262.3A Active CN104310824B (en) | 2014-09-26 | 2014-09-26 | A kind of method of rapid draing desulfurated plaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310824B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047653B (en) * | 2020-09-14 | 2022-01-28 | 山西鑫途化工有限公司 | Desulfurized gypsum rotation type stoving recovery unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234857A (en) * | 2008-02-29 | 2008-08-06 | 江苏瑞和化肥有限公司 | Method for drying granular phosphogypsum by using sulfuric acid tail gas |
| CN103274615A (en) * | 2013-06-03 | 2013-09-04 | 郑州市鼎力干燥设备有限公司 | Desulfurization gypsum drying and calcining equipment, and production process |
-
2014
- 2014-09-26 CN CN201410505262.3A patent/CN104310824B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234857A (en) * | 2008-02-29 | 2008-08-06 | 江苏瑞和化肥有限公司 | Method for drying granular phosphogypsum by using sulfuric acid tail gas |
| CN103274615A (en) * | 2013-06-03 | 2013-09-04 | 郑州市鼎力干燥设备有限公司 | Desulfurization gypsum drying and calcining equipment, and production process |
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| Publication number | Publication date |
|---|---|
| CN104310824A (en) | 2015-01-28 |
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