Method for preparing large size hollow ceramic plate and use products thereof

Abstract

The invention relates to a production method for a big size hollow ceramic plate and a product thereof; common ceramic material and ceramic black substance that is rich in transition metals of fourth period such as natural minerals, industrial waste, and the like, and a extrusion molding method by a vacuum extruding machine are adopted to produce the big size hollow ceramic plate at low cost; the surface or the whole body of the big size hollow ceramic plate is black or dark, and the area of a single plate can be more than 0.5m<2>; a ceramic perforated plate, a ceramic through hole plate and an attachment of the big size hollow ceramic plate form a tandem of the big size hollow ceramic plate in the forms of glued joint and socket joint, or ceramic seal plates are connected in series to form the tandem of the big size hollow ceramic plate; the tandem of the big size hollow ceramic plate can be applied to a solar water heater for supplying hot water, to a solar roof and wall for providing refrigeration, warm air and hot water for the building, to a large-scale solar air course and a large-area solar heat collecting site for power generation, to far infrared drying for energy saving, to building radiator for realizing the purposes of saving energy, reducing indoor dust blowing and promoting health.

Description

(1) Technical field [0001] The present invention relates to the technical field of ceramic manufacturing and application of ceramic products, in particular to manufacture low-cost, long-life surface or overall black from industrial waste, natural minerals, compounds and common ceramic raw materials rich in fourth-period transition metal elements Or dark large-size hollow ceramic plates are used as solar collector plates and far-infrared radiation plates for solar water heaters, solar roofs, solar walls, solar air ducts, solar heat collection fields, far-infrared drying, and building heating and cooling film etc. (2) Background technology [0002] After nearly 200 years of continuous accelerated mining, fossil fuel resources such as coal, oil, and natural gas have been gradually exhausted. Now we must find at least one new large-scale alternative energy within a limited time. Like nuclear fusion, deep-sea combustible hydrates, space solar power plants, low-cost solar cells, ...

AI Technical Summary

Problems solved by technology

Both have the following disadvantages: 1. The metal tube-sheet heat collector mainly adopts materials such as copper and aluminum, and the structure and manufacturing process of the vacuum glass tube heat collector are relatively complicated. high

2. Both of them use black sunlight absorbing paint coated at low temperature. Under the long-term sunlight, there will be a certain degree of aging to attenuate the sunlight absorption rate, the metal is easy to corrode, and the vacuum degree in the vacuum glass tube will gradually decrease. Significant Cause of Lifetime and Efficiency Issues

[0012] 1. Usually the temperature difference between the inside and outside of the greenhouse is about 30°C, but when the solar collector is air-dried, the temperature difference between the inside and outside can exceed 120°C. In contrast, the heat collection efficiency of the "solar chimney" is low, but the existing solar collectors The cost of the heater is too high, and the heat collector of the vacuum glass tube is a blind tube closed at one end, which makes it difficult to form a smooth air flow, which also makes the application difficult

[0013] 2. The chimney with a diameter of 130m and a height of 1000m is currently the tallest man-made building, and the technical and construction difficulties in the construction process may result in a higher cost

[0021] 2. The exploration cost of deep geothermal resources is high, and the drilling success rate is low

[0022] 3. The drilling depth is often more than 1000m, in order to maintain production capacity and maintain the environment must achieve 100% recharge, which increases the cost

[0023] 4. Generally, geothermal fluids are corrosive and easy to scale, which increases operating costs and equipment costs

300×300 mm vanadium-titanium black porcelain solar panels have an area of ​​0.09 square meters and a water capacity of 0.9kg. The water temperature can reach 100°C when the single-layer glass veneer is sun-drenched. In 1987, the vanadium-titanium black was ranked among the top solar water heaters in Shandong Province. Porcelain solar water heaters won the first prize. The water quality of the vanadium-titanium black porcelain solar water heaters was tested before and after heating, and no visible changes were found. The solar panels that have been used for more than 10 years have no signs of fading, corrosion, or aging. The black porcelain hollow solar panel method has low molding efficiency, consumes a large amount of gypsum, and has a low yield of large-sized solar panels. There are too many joints for small-sized panels, and the installation is cumbersome. It is difficult to develop into a large-scale industrial production method, and it is difficult to achieve large-scale promotion and use.

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