Lining polymer composite silicon carbide ceramic wear-resistant circulating pump

The invention discloses a lining polymer composite silicon carbide ceramic wear-resistant circulating pump. The lining polymer composite silicon carbide ceramic wear-resistant circulating pump comprises an impeller and a shaft which are connected, and the shaft is arranged on the back portion of the impeller; a pump body is arranged outside the impeller, a wear-resistant plate is arranged on the pump body, and a gland is arranged beside the wear-resistant plate; a bearing box is arranged outside the shaft; a back pump cover is arranged on the pump body; and a bracket is arranged at the lower end of the pump body. The wear-resistant plate is arranged in the circulating pump, therefore, the internal wear resistance of the pump body can be improved, the circulating pump is overall more resistant to wear, and the using property of the circulating pump is more stable; and a sealing part is arranged in the circulating pump, therefore, the sealing property of the shaft and the pump body is better, and the shaft can