A kind of production method of ceramic brick with melting hole effect on the surface
A production method and ceramic tile technology, applied in the field of ceramic tile production, can solve the problems of high production cost and achieve the effects of low cost, easy preparation, and low purity requirements
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Embodiment 1
[0010] 1. Select high-quality coal with little residue after combustion as raw material for pellets, first break the coal block, pass through 6-mesh and 30-mesh sieves, keep the upper part of 30-mesh sieves, and pack them into bags for later use;
[0011] 2. Roll the sieved coal particles on the surface of the ceramic brick wet body extruded by vacuum wet method. When rolling, the moisture content of the ceramic brick wet body is 19-21%, and the rolling pressure should not damage the body regularity. should;
[0012] 3. After the processed brick is cut according to the required length, it is placed on the drying frame platform and pushed into the drying kiln for drying;
[0013] 4. After the dried body is loaded into the intensive drying kiln for drying, it is fired in the oxidizing atmosphere of the tunnel kiln. In order to prevent the green body from exploding, the moisture content of the body in the tunnel kiln should be below 1%, and the firing cycle is 22 hours. The form...
Embodiment 2
[0016] 1. Select high-quality coal with little residue after combustion as the granular raw material, break high-quality coal, pass through 6-mesh and 30-mesh sieves, and keep the part on the 30-mesh sieve for later use.
[0017] 2. The proportion of make-up soil slurry is (wt%): white mud 34%, red mud 35%, stone powder 10%, manganese oxide 9%, iron oxide 12%, cellulose 0.5%, sodium tripolyphosphate 0.2% , add water 230% ball mill for 4 hours. The mud mentioned above is the raw ore mud mined from the mud wells near Foshan, Guangdong, without subsequent processing, and is named and classified according to its color.
[0018] 3, the making of granule, take coal particle: manganese chloride: make-up soil slurry selection 80:9:14 is example, namely 80kg coal particle, 9kg manganese chloride, 14kg part make-up soil slurry (water content of make-up soil slurry The rate is 70%) and mix according to the following steps:
[0019] ①Dissolve 9kg of manganese chloride with about 12kg of...
Embodiment 3
[0029] The production method of the present embodiment is similar to that of the second embodiment, the difference is that the firing atmosphere is a reducing atmosphere and the production of particles, taking coal particles: manganese chloride: make-up soil slurry selection 100:9:18 as an example, i.e. 100kg Coal particles, 9kg manganese chloride, 18kg make-up soil slurry (the moisture content of the make-up soil slurry is 65%). The rest of the production process is the same as in Example 2. The halo next to the melting hole on the surface of the finally obtained product is not as obvious as that in Example 2, and is lighter. The color of the obtained brick sample changes naturally, is richer, and has different decorative effects.
[0030] It can be seen that the decorative effect of the halo is formed by the iron and manganese coated on the surface of the coal particles during the firing process. The use of water-soluble manganese chloride is to make it center on the pressed ...
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