Method for preparing vanadium-titanium tailings ceramic heat-collecting plate

A technology of ceramic heat collection and tailings, which is applied in the direction of heating devices, solar thermal devices, solar thermal power generation, etc., can solve the problems of low efficiency and achieve the effect of reducing production costs and strengthening decoration

Inactive Publication Date: 2015-02-04
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The salt industry in coastal areas still uses the traditional method of drying salt in salt pans, which is less efficient

Method used

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  • Method for preparing vanadium-titanium tailings ceramic heat-collecting plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a. Preparation of the heat collecting layer (1): After uniformly mixing the Yellow River silt and vanadium-titanium tailings with a weight ratio of 50:50 plus ceramic pigments with a weight percentage of 5%, melt in a frit furnace at a temperature of 1350°C Process to make heat-collecting layer frit particles with a particle size of 0.1 mm;

[0019] b. Preparation of the transition layer (2): uniformly mix and grind the heat-collecting layer frit particles prepared in step a with 5% by weight of mullite until the particle size is 10 μm to make the transition layer raw material;

[0020] c. Preparation of the insulation layer (3): After uniformly mixing the heat-collecting layer frit particles prepared in step a with 5% coal gangue by weight percentage, the insulation layer raw material with a particle size of 0.1mm is made by spray granulation;

[0021] d. Preparation of vanadium-titanium tailings ceramic heat collector plate: first adopt the setter plate (4) left, righ...

Embodiment 2

[0023] a. Preparation of the heat-collecting layer (1): Mix the Yellow River silt, vanadium-titanium tailings with a weight ratio of 70:30 plus ceramic pigments with a weight percentage of 18%, and melt them in a frit furnace at a temperature of 1400°C Process to make heat-collecting layer frit particles with a particle size of 1mm;

[0024] b. Preparation of the transition layer (2): uniformly mix and grind the heat-collecting layer frit particles prepared in step a with 13% by weight of mullite until the particle size is 30 μm to make the transition layer raw material;

[0025] c. Preparation of the insulation layer (3): the heat-collecting layer frit particles prepared in step a plus 12% coal gangue by weight percentage are evenly mixed, and the insulation layer raw material with a particle size of 0.5mm is made by spray granulation;

[0026] d. Preparation of vanadium-titanium tailings ceramic heat collector plate: first adopt the setter plate (4) left, right, front, back ...

Embodiment 3

[0028] a. Preparation of the heat collecting layer (1): After uniformly mixing the Yellow River silt and vanadium-titanium tailings with a weight ratio of 90:10 plus a ceramic pigment of 30% by weight, melt at a temperature of 1450°C in a frit furnace Process to make heat-collecting layer frit particles with a particle size of 2mm;

[0029] b. Preparation of the transition layer (2): uniformly mix and grind the heat-collecting layer frit particles prepared in step a with 20% by weight of mullite until the particle size is 50 μm to make the transition layer raw material;

[0030] c. Preparation of the insulation layer (3): After the heat-collecting layer frit granules prepared in step a are added with 30% coal gangue by weight and evenly mixed, the insulation layer raw material with a particle size of 1mm is made by spray granulation;

[0031] d. Preparation of vanadium-titanium tailings ceramic heat collector plate: first adopt the setter plate (4) left, right, front, back and...

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Abstract

The invention discloses a method for preparing a vanadium-titanium tailings ceramic heat-collecting plate. The method is characterized in that the vanadium-titanium tailings ceramic heat-collecting plate is composed of three parts, namely a heat collecting layer (1), a transition layer (2) and a heat preservation layer (3). According to the vanadium-titanium tailings ceramic heat-collecting plate prepared in accordance with the method disclosed by the invention, light waves with various frequencies can be sufficiently captured under the sunlight irradiation, so that the surface temperature of the vanadium-titanium tailings ceramic heat-collecting plate reaches 100 DEG C, and the heat conversion capability can reach more than 95%; the transition layer is additionally arranged between the heat collecting layer and the heat preservation layer by means of single firing, so that the disadvantages of overlarge diameters of air holes as well as reduced combination strength and thermal impact resistance caused by inconsistent material melting points of the heat collecting layer and the heat preservation layer are effectively overcome; the vanadium-titanium tailings ceramic heat-collecting plate with various colors, such as single color and composite color, can be prepared by means of adding a ceramic colorant; the production technology is simple, the cost is low, and the heat collecting efficiency is good.

Description

technical field [0001] The invention relates to a method for preparing a vanadium-titanium tailings ceramic heat collecting plate, belonging to the technical field of ceramic preparation. Background technique [0002] Vanadium-titanium tailings ceramic heat collector plates will generate a lot of heat energy when they are irradiated by sunlight. The salt industry in coastal areas still uses the traditional method of drying salt in salt pans, which is less efficient. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a vanadium-titanium tailings ceramic heat-collecting plate with high heat-collecting function and low production cost, and its technical scheme is: [0004] A method for preparing a vanadium-titanium tailings ceramic heat collecting plate. The vanadium-titanium tailings ceramic heat collecting plate is composed of three parts: a heat collecting layer (1), a transition layer (2), and an insulating layer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/48C04B35/00
CPCY02E10/40
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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