A semi-dry desulfurization gray interior wall putty

A semi-dry desulfurization, interior wall putty technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of wall beauty discount, easy occurrence of mold, poor water resistance, etc. Good, good decorative effect, low cost effect

Inactive Publication Date: 2016-04-13
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a kind of semi-dry method desulfurization ash interior wall putty to solve the technical problem that the traditional putty has poor water resistance, is prone to mold and bacteria breeding, and further leads to a greatly reduced wall surface appearance.

Method used

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  • A semi-dry desulfurization gray interior wall putty
  • A semi-dry desulfurization gray interior wall putty

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In the embodiment of this application, a semi-dry desulfurization gray interior wall putty is described.

[0020] The composition of the interior wall putty is (according to the mass percentage): semi-dry desulfurization ash 25% to 35%, steel slag 10% to 20%, slag fine powder 30% to 45%, Shuangfei powder 10% to 25%, water retaining agent 0 %~5%, latex powder 0%~5%.

[0021] Among them, the semi-dry desulfurization ash is specifically the desulfurization ash produced by the semi-dry flue gas desulfurization system of the iron and steel plant.

[0022] Further, please refer to the preparation method of the interior wall putty of the present invention figure 1 ,include:

[0023] S1, drying the semi-dry desulfurization ash so that the water content of the semi-dry desulfurization ash is less than 1% of its mass.

[0024] S2, drying the steel slag, and using a ball mill to grind it into powder.

[0025] In a specific implementation process, after drying the semi-dry desu...

Embodiment 2

[0030] Take the sintered semi-dry desulfurization ash from the iron and steel plant, steel slag after iron selection, and slag and put them in an oven at 100°C for drying. %. After drying, the steel slag and slag are ground into powder. After grinding, the fineness of the steel slag is above 350 mesh, and the specific surface area of ​​the slag fine powder is not less than 450m 2 / kg spare.

[0031] Weigh 25% desulfurization ash, 15% powdered steel slag, 40% slag powder, 15% double fly powder, 2% water retaining agent, 3% latex powder, and put the above raw materials into the mixer at the same time , use a centrifugal three-shaft mixer to mix for 15 minutes, stir evenly, and then pack it with a baler or air pressure pump and send it into a vacuum tank for storage.

Embodiment 3

[0033] Take the sintered semi-dry desulfurization ash from the iron and steel plant, steel slag after iron selection, and slag and put them in an oven at 100°C for drying. %. After drying, the steel slag and slag are ground into powder. After grinding, the fineness of steel slag is above 350 mesh, and the specific surface area of ​​slag powder is not less than 450m 2 / kg spare. Weigh 30% desulfurization ash, 10% powdered steel slag, 45% slag powder, 10% double fly powder, 1% water retaining agent, 4% latex powder, and put the above raw materials into the mixer at the same time , use a centrifugal three-shaft mixer to mix for 15 minutes, stir evenly, and then pack it with a baler or air pressure pump and send it into a vacuum tank for storage.

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Abstract

The invention discloses semidry-process desulfurization ash putty for an interior wall. The putty for the interior wall comprises the following components (in percentage by mass): 25-35% of semidry-process desulfurization ash, 10-20% of steel slag, 30-45% of superfine slag powder, 10-25% of calcium-magnesium powder, 0-5% of water retaining agent and 0-5% of emulsion powder. According to the invention, people can know that the putty is prepared by taking waste steel slag generated by steel slag enterprises, mineral slag and desulfurization slag instead of heavy calcium carbon as raw materials, therefore, when a mixture obtained after putty powder is mixed with water is used for coating a wall, the water resistant performance of the wall can be good, and the growth of mildews growing under a humid survival condition is also inhibited; the prepared putty wall is mild in color, therefore, a favorable decoration effect can be achieved.

Description

technical field [0001] The application relates to the technical field of metallurgy and environmental protection, in particular to a semi-dry desulfurization ash interior wall putty. Background technique [0002] Semi-dry desulfurization ash is a by-product of the semi-dry flue gas desulfurization system in iron and steel plants. Since there is no better way to use it, it is mainly stockpiled at present. With the increase of semi-dry desulfurization projects, the production of desulfurization ash is increasing year by year. According to statistics, a 360m 2 The sintering machine adopts full flue gas desulfurization, which produces 40,000 to 50,000 tons per year. The main components of desulfurization ash are calcium sulfite, calcium sulfate, calcium carbonate and calcium hydroxide. At present, desulfurization ash is mostly used as an additive to prepare cement, bricks or inorganic materials. Due to the high content of calcium sulfite in desulfurization ash, its practical ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/02C04B18/30C04B18/14C04B18/12
CPCY02W30/91
Inventor 卢丽君薛改凤朱书景方宏辉刘瑛
Owner 武汉钢铁有限公司
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