The requirements for the construction and installation of the pulp pump are listed below. 1. The impeller is not blocked, generally made of open impeller, KCB gear pump cleaning is also easy, however, as long as the impeller flow channel wide enough spacious, so closed impeller is also possible. 2. The back side of the impeller, equipped with back blades to prevent pulp from dipping into the stuffing box. In the same way, water is also injected into the seal. 3. The dimensions of the pump body are, of course, guaranteed not to be clogged with paper pulp. Larger holes are provided everywhere for cleaning, or structures that allow for easy removal of the end cap The structure in front of the pump suction port should allow the pulp to flow easily. To this high temperature residue pump, the suction pipe should be thick and short, and the suction side of the pool as high as possible. The main vanes are twisted at the entrance to a mixed flow pattern so that the flow of pulp can be easily absorbed. In the case of high concentrations, a pressure head of more than 2 m must be pressed in from the pump axis to the suction level, and a booster wheel mounted in front of the main impeller. 4 due to the high concentration of friction within the tube is very large, therefore, to try to make the extrusion tube is not insulated gear pump bending and manifold resistance. 5. Stir the paper slurry well and heat the gear pump so that it flows as evenly as possible into the suction port of the pump. 6. It is important that the air contained in the pulp be drained as far as possible before entering the impeller, as the centrifugal pump drastically reduces its performance when it contains air. In addition, the presence of air can destabilize the operation of the pump, so needless to say, a structure that does not retain air inside the pump body should be adopted. The above description of the main considerations for the pulp pump, air bubbles in the pulp into the fiber and between the fibers, at high concentrations, due to tight fit fiber filaments, although the bubbles can leave a bubble mixing, But getting it to the free surface is not easy. Asphalt Insulation Pump For this reason, air has become the biggest obstacle to the performance improvement of high-consistency pulp centrifugal pumps. In this regard, the measures taken are to install a mixer, a crusher and the like on the suction side so that the free air is discharged from the vertical exhaust pipe but it can not be expected to be completely discharged. American Aris Chamar company type, the pump suction side with a large feed box, pulp in this wide box by the feeder while separating the air, while feeding into the suction port of the pump. In this way, the slurry can be delivered at a concentration of about 8%.