Method for producing porous ceramic material with carbon process sugar lime sludge

Abstract

The invention relates to a method for manufacturing a porous ceramic material from carburized sugar filtration mud. The method comprises the following steps: using 25 to 50 weight percent of waste sugar filtration mud from a sugar-refinery with the moisture content of less than 13 percent and 50 to 75 weight percent of clay as raw materials; mixing the sugar filtration mud and the clay to performball milling and sieving the mixture through a 120-mesh sieve; adding water into the mixture and kneading the mixture repeatedly until the plasticity reaches the requirements of a plastic pug; performing the process of mustiness, and molding and drying the mixture; and sintering the mixture at a temperature of between 1,000 and 1,200 DEG C for 10 to 40 minutes to obtain the porous ceramic material. The method has a simple production process, not only solves the problem that the sugar filtration mud is hard to deal with and protects the environment, but also reduces the production cost of the porous ceramic material. The prepared porous ceramic material is superior in performance (the ceramic aperture size is less than 5 micrometers, the porosity is between 20 and 27 percent, the water absorption is between 14 and 18 percent, and the mechanical strength is between 18 and 26 MPa), and can be applied in various fields such as the waste water filtration and separation, carrier materials, sound-absorbing and insulating materials and the like.

Description

technical field [0001] The invention relates to a clay ceramic product, especially a porous ceramic product and its preparation method, and also relates to the treatment of sewage, which belongs to the field of resources and environment. Background technique [0002] Sugar filter sludge is a solid waste produced during the sugar clarification process, and is one of the bulk by-products of the sugar industry. Every ton of sugar produced by a sugar factory will discharge about 1 ton of filter sludge. my country's sugar industry basically uses two processes: carbonic acid and sulfurous acid. Because the quality of carbon-based sugar is better than that of French sugar and the price is higher, it is the first choice for sugar production. However, carbon-based sugar filter mud (hereinafter referred to as sugar filter mud) is a strong alkaline filter mud, which has been directly used for a long time. Used in fertilized fields or abandoned, the stacking of these filter muds not on...

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Problems solved by technology

[0003] The purpose of the present invention is to use sugar filter mud as the main raw material to burn a porous ceramic material with high compressive strength, small pore size and uniform distribution. The production process is simple, and the sugar filter mud can meet the technological requirements without special treatment. It solves the environmental protection problems of sugar filter mud treatment, turns waste into treasure, improves the environment, and greatly reduces the production cost of porous materials

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