Ceramic rock plate prepared from wollastonite tailings through ultralow-temperature fast firing and manufacturing method of ceramic rock plate
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A manufacturing method and wollastonite technology, which are applied in the field of ceramic product manufacturing, can solve the problems of shortage of raw material resources, dark color of ceramic tiles, limited application, etc. The effect of ecological environment
Inactive Publication Date: 2022-03-11
JIANGXI WONDERFUL CERAMICS CO LTD +1
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[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a ceramic slab prepared by ultra-low temperature fast firing of wollastonite tailings and a manufacturing method, aiming at solving the shortage of raw material resources used in the preparation of ceramic products by low temperature fast firing, The problem that the darker color of the prepared ceramic tiles is limited in application
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Embodiment 1
[0072] The raw materials of the ceramic slate body, in parts by weight, include the following components:
[0073] 40 parts of wollastonite tailings, 35 parts of clay, 2 parts of potassium feldspar, 3 parts of albite, 10 parts of quartz, 2 parts of zirconium silicate, 5 parts of spodumene, 2 parts of monetite, 0.7 parts of sodium hexametaphosphate part, 0.3 part of modified lignin; among them, monetite needs to be calcined at 900 ℃ before use. Among them, the wollastonite tailings are composed as follows according to the weight percentage: wollastonite 47wt%, diopside 6wt%, calcite 28wt%, quartz 15wt%, other impurities 4wt%;
[0074] The ceramic slate body adopts a low-temperature fast-firing sintering process, the sintering temperature is 1080 ° C, and the sintering time is 50 minutes. The whiteness of the obtained ceramic slate body is greater than 58 degrees, the water absorption rate is 0.08%, and the fracture modulus is 58MPa.
[0075] Preparation of ceramic slate (such...
Embodiment 2
[0087] The raw materials of the ceramic slate body, in parts by weight, include the following components:
[0088] 30 parts of wollastonite tailings, 40 parts of clay, 9 parts of potassium albite, 15 parts of quartz, 1 part of zirconium silicate, 3 parts of spodumene, 1 part of monetite, 0.7 parts of sodium tripolyphosphate, modified wood 0.3 servings of vegetarian food.
[0089] Among them, the wollastonite tailings are composed as follows according to the weight percentage: wollastonite 45wt%, diopside 4wt%, calcite 30wt%, quartz 15wt%, other 6wt%;
[0090] The ceramic slate body adopts a low-temperature fast-firing sintering process, the sintering temperature is 1055°C, and the sintering time is 45 minutes. The obtained ceramic slate body has a whiteness greater than 50 degrees, a water absorption rate of 2.4%, and a modulus of rupture. is 43MPa.
[0091] Preparation of ceramic slate (such as figure 2 shown):
[0092] (1) Crushing and processing of raw materials. The p...
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Abstract
The invention discloses a ceramic rock plate prepared from wollastonite tailings through ultralow-temperature fast firing and a manufacturing method, the ceramic rock plate comprises a green body, and the green body comprises the following raw material components in parts by weight: 25-45 parts of wollastonite tailings, 10-50 parts of clay, 5-15 parts of potassium feldspar and albite, 10-20 parts of quartz, 0-5 parts of zirconium silicate, 2-10 parts of a mineralizing agent, 0-1.0 part of a dispergator and 0-1.0 part of a reinforcing agent. According to the invention, the wollastonite tailings are introduced into the formula of the ceramic rock plate blank, so that an ultralow-temperature fast firing process with the firing temperature of 1000-1100 DEG C and the firing period of 35-50 minutes can be realized, and the firing temperature and the firing time are greatly reduced; the high-proportion wollastonite tailings are introduced into the formula of the ceramic rock plate blank, so that the whiteness of the blank can be improved and reaches 50 degrees or above, and the ceramic rock plate blank can be well applied to development and production of various rock plate products; in addition, the wollastonite tailings are introduced to replace a large amount of expensive mud and sand raw materials, so that the production cost of the ceramic rock plate product is reduced.
Description
technical field [0001] The invention relates to the field of manufacture of ceramic products, in particular to a ceramic slate prepared by ultra-low temperature and fast sintering of wollastonite tailings and a manufacturing method. Background technique [0002] Ceramics is a traditional industry with high energy consumption, and the firing process is one of the most energy-intensive processes. The sintering temperature of roller kilns for porcelain ceramic tiles is mostly above 1200 °C, and the firing cycle is generally greater than 60 minutes. How to further reduce product energy consumption, reduce sintering temperature, and shorten sintering cycle has always been the key research direction of ceramic enterprises. [0003] Chinese patent CN103693942A discloses a production process for rapidly firing ceramic bricks at low temperature. Although the firing temperature is 1050°C to 1140°C and the firing cycle is 35 to 75 minutes, a ceramic tile with a water absorption rate of...
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