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CN-122010528-A - Sanitary ware ceramic material for recycling waste ceramic and preparation method thereof

CN122010528ACN 122010528 ACN122010528 ACN 122010528ACN-122010528-A

Abstract

The invention discloses a sanitary appliance ceramic material for recycling waste ceramics and a preparation method thereof. The ceramic material includes ceramic waste, plastic feedstock, barren feedstock and solvent feedstock. The preparation process comprises the steps of taking ceramic waste materials of sanitary ware factories, mechanically crushing the ceramic waste materials into particles, drying the particles, screening the particles by using an air flow classifier, soaking the particles in NaOH solution to obtain pretreated ceramic waste materials, respectively taking plastic raw materials, barren raw materials, solvent raw materials and pretreated ceramic waste materials, grinding the ground ceramic waste materials and the solvent raw materials, mixing the ground ceramic waste materials with the solvent raw materials, ball milling, adding the plastic raw materials and the barren raw materials, continuing ball milling, grouting, and carrying out sectional firing to obtain the ceramic material of the sanitary ware. The invention adjusts the formula according to the characteristics of the waste ceramic material, and the invention adjusts the technological parameters such as the blank formula, the firing curve and the like due to the high proportion of the added waste ceramic particles, so that the product prepared by the invention has higher mechanical strength.

Inventors

  • CHEN WEISHENG
  • CHEN YANPING
  • SU BING
  • WANG YONG
  • CHEN YANMEI
  • CHEN JIALIN
  • ZHENG TIANWEI

Assignees

  • 宾姿智能家居(潮州)有限公司
  • 中科智能厨卫(潮州)有限公司

Dates

Publication Date
20260512
Application Date
20260224

Claims (10)

  1. 1. The sanitary ware ceramic material for recycling waste ceramic is characterized by comprising, by weight, 20-40 parts of ceramic waste, 30-50 parts of plastic raw materials, 15-25 parts of barren raw materials and 15-25 parts of solvent raw materials; the plastic raw materials comprise kaolin, bentonite and clay; the barren raw materials comprise quartz stone and pyrophyllite; the solvent raw materials comprise aegirine, enstatite, phospho-alumino-lithia, fluorite, barium carbonate, zincite and talcum.
  2. 2. The sanitary ware ceramic material for recycling waste ceramic according to claim 1, wherein the ceramic material comprises, by weight, 25 parts of ceramic waste, 40 parts of plastic raw materials, 15 parts of barren raw materials and 20 parts of solvent raw materials.
  3. 3. The sanitary ware ceramic material for recycling waste ceramic according to claim 1, wherein the plastic raw material comprises, by mass, 40-60% of kaolin, 15-35% of bentonite and 15-35% of clay.
  4. 4. The sanitary ware ceramic material for recycling waste ceramic according to claim 1, wherein the barren raw materials comprise, by mass, 50-75% of quartz stone and 25-50% of pyrophyllite.
  5. 5. The sanitary ware ceramic material for recycling waste ceramic according to claim 1, wherein the solvent raw material comprises, by mass, 10-20% aegirine% enstatite, 5-15% phospho-aluminous-lithia, 10-15% fluorite, 5-8% strontium carbonate, 10-15% zincite and 10-40% talcum.
  6. 6. The method for preparing the sanitary ware ceramic material for recycling waste ceramic according to any one of claims 1 to 5, which is characterized by comprising the following steps: (1) Pretreatment of ceramic waste: Taking ceramic waste materials of sanitary ware factories, mechanically crushing the ceramic waste materials to the size of 1-5 mm, drying the ceramic waste materials, and screening the ceramic waste materials by using an air flow classifier; (2) And (3) grinding materials: grinding plastic raw materials, barren raw materials, solvent raw materials and the pretreated ceramic waste material obtained in the step (1) respectively to 300-400 meshes; (3) Mixing the ground ceramic waste with a solvent raw material, ball-milling, adding a plastic raw material and a barren raw material, and continuing ball-milling; (4) Slip casting, natural air drying, and sectional firing to obtain the sanitary ware ceramic material.
  7. 7. The method for preparing the sanitary ware ceramic material for recycling waste ceramic according to claim 6, wherein in the step (1), the concentration of the NaOH solution is 20-30wt%.
  8. 8. The method for preparing the sanitary ware ceramic material for recycling waste ceramic according to claim 6, wherein in the step (1), the soaking time is 5-10 h, and the washing times are 2-3 times.
  9. 9. The method for preparing the sanitary ware ceramic material for recycling waste ceramic according to claim 6, wherein in the step (3), the ball milling time is 2-6 hours.
  10. 10. The method for preparing the sanitary ware ceramic material for recycling waste ceramic according to claim 6, wherein in the step (4), the sectional firing is carried out at 250-350 ℃ for 1-2 h, 500-700 ℃ for 2-4 h, and 900-1000 ℃ for 2-4 h.

Description

Sanitary ware ceramic material for recycling waste ceramic and preparation method thereof Technical Field The invention belongs to the field of ceramic resource utilization, and particularly relates to a sanitary appliance ceramic material for waste ceramic resource utilization and a preparation method thereof. Background Sanitary ware ceramics are glazed ceramic products used in the scenes of toilets, kitchens, laboratories and the like, cover the products of toilets, face washes, bathtubs and the like, and are classified into clinker ceramics (water absorption rate < 18%), fine ceramics (12%), semi-ceramics (5%) and ceramics (0.5%) according to the materials, wherein the ceramic materials have the best performance. At any time, the sanitary ware ceramic waste yield of China rapidly develops year by year, and particularly in manufacturers producing sanitary ware ceramic, stacking of sanitary ware ceramic with rejected waste is a great problem. Excessive ceramic waste is not only wasted and generated cost, but also has relatively high pressure on the environment, the waste has high hardness and is difficult to degrade, and long-term landfill occupies a large amount of land resources, so that the recycling and the utilization of the waste become an important subject to be solved in the industry. At present, although preliminary exploration exists in the waste resource utilization of sanitary ware ceramics, the large-scale industrial application of the sanitary ware ceramics is still limited by multiple technical bottlenecks. The main problems include complex waste ceramic components and high pretreatment difficulty, unstable sintering shrinkage rate and reduced mechanical property caused by high fluctuation of waste ceramic reclaimed material components in the regeneration process, and difficulty in meeting the production requirement of high added value products. Disclosure of Invention The invention overcomes the defects of the prior art and provides a sanitary appliance ceramic material for recycling waste ceramics and a preparation method thereof. The invention adjusts the formula according to the characteristics of the waste ceramic material, and the invention adjusts the technological parameters such as the blank formula, the firing curve and the like due to the higher proportion of the added waste ceramic particles, so that the product prepared by the invention has higher mechanical strength. The sanitary ware ceramic material for recycling waste ceramic comprises, by weight, 20-40 parts of ceramic waste, 30-50 parts of plastic raw materials, 15-25 parts of barren raw materials and 15-25 parts of solvent raw materials; the plastic raw materials comprise kaolin, bentonite and clay; the barren raw materials comprise quartz stone and pyrophyllite; the solvent raw materials comprise aegirine, enstatite, phospho-alumino-lithia, fluorite, barium carbonate, zincite and talcum. Further, the ceramic waste material comprises, by weight, 25 parts of ceramic waste material, 40 parts of plastic raw material, 15 parts of barren raw material and 20 parts of solvent raw material. As a preferable case, the plastic raw material comprises, by mass, 40-60% of kaolin, 15-35% of bentonite and 15-35% of clay. Further, the barren raw material comprises, by mass, 50-75% of quartz stone and 25-50% of pyrophyllite. Further, the solvent raw material comprises, by mass, 10-20% aegirine% of enstatite, 5-15% of phospholithiumite, 10-15% of fluorite, 5-8% of strontium carbonate, 10-15% of zincite and 10-40% of talcum. A preparation method of sanitary ware ceramic material for recycling waste ceramic comprises the following steps: (1) Pretreatment of ceramic waste: Taking ceramic waste materials of sanitary ware factories, mechanically crushing the ceramic waste materials to the size of 1-5 mm, drying the ceramic waste materials, and screening the ceramic waste materials by an air classifier, wherein the glaze materials falling off in the crushing process can be removed; (2) And (3) grinding materials: grinding plastic raw materials, barren raw materials, solvent raw materials and the pretreated ceramic waste material obtained in the step (1) respectively to 300-400 meshes; (3) Mixing the ground ceramic waste with a solvent raw material, ball-milling, adding a plastic raw material and a barren raw material, and continuing ball-milling; (4) Slip casting, natural air drying, and sectional firing to obtain the sanitary ware ceramic material. In the method, in the step (1), the concentration of the NaOH solution is 20-30wt%. In the method, in the step (1), the soaking time is 5-10 hours, and the cleaning times are 2-3 times. In the method, in the step (3), the ball milling time is 2-6 hours. In the method, in the step (4), the sectional firing is carried out at 250-350 ℃ for 1-2 h, 500-700 ℃ for 2-4 h and 900-1000 ℃ for 2-4 h. In the prior art, the components of the waste porcelain reclaimed materials have large fluctuation and the sinter