Rapid sanitary appliance production method

Abstract

The invention discloses a rapid sanitary appliance production method which includes the steps: grouting and forming: pouring slurry into a mold, demolding to form a sanitary appliance mud blank; microwave drying: conveying the sanitary appliance mud blank into a microwave drying oven to dry the mud blank for 3-6 hours. Microwave drying stages sequentially include a slow drying stage, an accelerated drying stage, a rapid drying stage and a cooling stage. The sanitary appliance mud blank is dried by the aid of a microwave drying mode, a drying period is controlled within the range from 3 hours to 6 hours and reduced to a large extent, and the production efficiency is improved. The method adopts four microwave drying stages, so that the sanitary appliance mud blank is slowly dried, dried in an accelerated manner, rapidly dried and cooled, and the drying qualification rate of sanitary appliances is effectively increased and reaches 97%.

Description

technical field

[0001] The invention relates to the technical field of sanitary ware production, in particular to a rapid production method for sanitary ware. Background technique

[0002] Compared with ceramic tiles and daily-use ceramics, ceramic sanitary ware has the characteristics of large volume and heavy weight. The production of ceramic sanitary ware adopts grouting molding. The formed sanitary ware body is dried in a drying room, and after drying, it is sprayed with glaze and fired in a kiln.

[0003] At present, the drying process of ceramic sanitary ware products is divided into two stages: pre-drying and hot air drying in the drying room. The temperature and humidity control in the pre-drying stage directly affects the cracking and scrapping of the green body. In the pre-drying stage, the green body is usually placed in the billet injection workshop. Due to seasonal changes and other factors, the temperature and humidity in the billet injection workshop vary gre...

Examples

Embodiment A

[0094] A rapid production method for sanitary ware, comprising the following steps:

[0095]Grouting molding: the slurry is injected into the mold, demolded into a sanitary ware mud blank, and the existing ordinary mud is used for grouting molding;

[0096] Microwave drying: The sanitary ware mud is sent to a microwave drying oven for drying. Microwave drying includes a slow drying stage, an accelerated drying stage, a fast drying stage and a cooling stage in sequence. The microwave drying cycle is 3-6 hours.

[0097] The control conditions of the slow drying stage are: turn on the microwave and the circulating air at the top of the microwave drying oven, the microwave power is 28-32KW, the temperature in the furnace is 40-50°C, and the relative humidity in the furnace is 8-52%; the slow drying stage includes Three intervals, the temperature in the furnace of the three intervals is 42°C, 45°C, and 48°C in sequence, and the relative humidity in the furnace of the three interval...

Embodiment B

[0117] The rapid production method of the sanitary ware in this embodiment is basically the same as that in Embodiment A, using the control parameters in serial numbers ①-⑤, the difference is that in the grouting molding step, high-pressure mud grouting is used;

[0118] The mass proportion of ridge material in the high-pressure mud raw material is 55-60%, and the mass proportion of particles smaller than 2 microns in the high-pressure mud raw material is less than 24%.

[0119] The parameters of high-pressure mud are: temperature 36-40, specific gravity 1.77-1.78, fluidity 290-320, thixotropy 85-105, 250 mesh sieve residue 0.8-1.8, 325 mesh sieve residue 6-8, slurry eating speed 7.5-8.5 mm / h, V0=40-45s, V30=75-85s.

[0120] The raw materials of high-pressure mud include ridge material and soft slurry material;

[0121] Ridge materials include 4-6% of Ningxiang soil, 7-11% of Zhangcun soil, 1-3% of potassium sand, 1-3% of sodium sand, 2-4% of magnesia clay and porcelain clay ...

technical field

[0001] The invention relates to the technical field of sanitary ware production, in particular to a rapid production method for sanitary ware. Background technique

[0002] Compared with ceramic tiles and daily-use ceramics, ceramic sanitary ware has the characteristics of large volume and heavy weight. The production of ceramic sanitary ware adopts grouting molding. The formed sanitary ware body is dried in a drying room, and after drying, it is sprayed with glaze and fired in a kiln.

[0003] At present, the drying process of ceramic sanitary ware products is divided into two stages: pre-drying and hot air drying in the drying room. The temperature and humidity control in the pre-drying stage directly affects the cracking and scrapping of the green body. In the pre-drying stage, the green body is usually placed in the billet injection workshop. Due to seasonal changes and other factors, the temperature and humidity in the billet injection workshop vary gre...

Examples

Embodiment A

[0094] A rapid production method for sanitary ware, comprising the following steps:

[0095]Grouting molding: the slurry is injected into the mold, demolded into a sanitary ware mud blank, and the existing ordinary mud is used for grouting molding;

[0096] Microwave drying: The sanitary ware mud is sent to a microwave drying oven for drying. Microwave drying includes a slow drying stage, an accelerated drying stage, a fast drying stage and a cooling stage in sequence. The microwave drying cycle is 3-6 hours.

[0097] The control conditions of the slow drying stage are: turn on the microwave and the circulating air at the top of the microwave drying oven, the microwave power is 28-32KW, the temperature in the furnace is 40-50°C, and the relative humidity in the furnace is 8-52%; the slow drying stage includes Three intervals, the temperature in the furnace of the three intervals is 42°C, 45°C, and 48°C in sequence, and the relative humidity in the furnace of the three interval...

Embodiment B

[0117] The rapid production method of the sanitary ware in this embodiment is basically the same as that in Embodiment A, using the control parameters in serial numbers ①-⑤, the difference is that in the grouting molding step, high-pressure mud grouting is used;

[0118] The mass proportion of ridge material in the high-pressure mud raw material is 55-60%, and the mass proportion of particles smaller than 2 microns in the high-pressure mud raw material is less than 24%.

[0119] The parameters of high-pressure mud are: temperature 36-40, specific gravity 1.77-1.78, fluidity 290-320, thixotropy 85-105, 250 mesh sieve residue 0.8-1.8, 325 mesh sieve residue 6-8, slurry eating speed 7.5-8.5 mm / h, V0=40-45s, V30=75-85s.

[0120] The raw materials of high-pressure mud include ridge material and soft slurry material;

[0121] Ridge materials include 4-6% of Ningxiang soil, 7-11% of Zhangcun soil, 1-3% of potassium sand, 1-3% of sodium sand, 2-4% of magnesia clay and porcelain clay ...

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