Porous honeycomb-shaped biological ceramic, special die and preparation method

The invention discloses porous honeycomb-shaped biological ceramic, a special die and a preparation method. The special die for the porous honeycomb-shaped biological ceramic comprises the following four parts: a die sleeve, a die core, a clay outlet barrel and a pressure plate; the pressure plate is fixedly arranged at the lower end of the die sleeve; a clamping groove is formed between the die sleeve and the pressure plate; the die core and the clay outlet barrel are embedded in the clamping groove; the die core is divided into upper and lower layers; the upper layer is a clay guide hole layer; clay guide holes are uniformly distributed in the upper layer; the lower layer is a discharge chute layer; the discharge chute layer is formed by bosses which are uniformly distributed; discharge chutes are formed between adjacent bosses; the discharge chutes are communicated with the clay guide holes; a groove is formed in the upper part of the clay outlet barrel; the discharge chute layer of the die core is embedded in the groove of the clay outlet barrel; a gap is reserved between the periphery of the discharge chute layer and the side wall of the groove; the gap is communicated with the clay guide holes; the clay guide hole layer of the die core is laminated and fixed with the upper part of the clay outlet barrel; the lower part of the clay outlet barrel is embedded into a groove of the pressure plate; a clay outlet passage is formed by the centers of the clay outlet barrel and the pressure plate. According to the invention, a preparation process is simple, equipment is simple, raw materials are cheap and are easy to obtain, a forming process is simple, cost is low and the porous honeycomb-shaped biological ceramic is beneficial to large-scale production.