Yellow phosphorus production safe circular cover

The utility model particularly relates to the improvement on a yellow phosphorus production safe circular cover and aims at providing a yellow phosphorus production safe circular cover. The yellow phosphorus production safe circular cover comprises a cover seat and a cover body. The cover seat is annular, an inner hole of the cover seat is a step hole, and the cover body is installed in the cover seat. The cover seat is provided with three steel cable penetrating holes which are evenly distributed in the circumferential direction of the cover seat. A fixed pulley assembly is arranged beside each steel cable penetrating hole and is composed of a fixed pulley and a pulley support, and sliding grooves of the fixed pulleys are parallel. A vertical cable penetrating hole is formed in the center of the cover body, a first cable groove is formed in the top face of the cover body, and the two ends of the first cable groove penetrate through the cable penetrating holes and the outer edge of the cover body respectively. A second cable groove is formed in the top face of the cover seat, one end of the second cable groove is connected with the first cable groove, and the other end of the second cable groove penetrates through the outer edge of the cover seat. By means of the yellow phosphorus production safe circular cover, the service life of a floor and the safety of work personnel and equipment can be effectively ensured, dust can be prevented from falling into electrodes which are in the working process, and the normal work of the electrodes is ensured.