A kind of preparation method of 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: 2016-02-24
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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  • A kind of preparation method of vanadium-titanium tailings ceramic heat collecting plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[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 heat-insulating layer (3): uniformly mix the frit particles of the heat-collecting layer prepared in step a plus 5% coal gangue by weight, and spray granulate to make the raw material of the heat-insulating layer with a particle size of 0.1 mm;

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

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 heat-insulating layer (3): uniformly mix the frit particles of the heat-collecting layer prepared in step a with 12% by weight of coal gangue, and spray granulate to make a raw material for the heat-insulating layer with a particle size of 0.5 mm;

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

Embodiment 3

[0028] a. Preparation of the heat-collecting layer (1): Mix the Yellow River silt, vanadium-titanium tailings with a weight ratio of 90:10 plus ceramic pigments with a weight percentage of 30%, and melt them in a frit furnace at a temperature of 1450°C 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): uniformly mix the heat-collecting layer frit particles prepared in step a plus 30% by weight of coal gangue, and spray granulate to make the insulation layer raw material with a particle size of 1 mm;

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

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Abstract

A method for preparing a vanadium-titanium tailings ceramic heat collecting plate, characterized in that: a 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 (3) consist of. The vanadium-titanium tailings ceramic heat collector plate prepared by the present invention can fully capture light waves of various frequencies under the irradiation of sunlight, so that the surface temperature of the vanadium-titanium tailings ceramic heat collector plate can reach as high as 100°C, and the heat conversion capacity can reach 95%. Above, due to the one-time firing, a transition layer is added between the heat-collecting layer and the heat-insulating layer, which effectively solves the problem of excessive pore diameter, reduced bonding strength and thermal shock resistance caused by inconsistent melting points of materials between the heat-collecting layer and the heat-insulating layer The shortcomings of vanadium-titanium tailings ceramic heat collectors in various colors such as single color and composite color can be prepared by adding ceramic colorants. The production process is simple, the cost is low, and the heat collection effect 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 Patents(China)
IPC IPC(8): F24J2/48C04B35/00
CPCY02E10/40
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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