Manufacturing method of crepe paper

A method for making crepe paper, wherein wood pulp is a mixture of 5-30% (W/W) wet wood pulp and 70-95% (W/W) coniferous wood pulp. The hydraulic pulping system includes a hydraulic pulping machine 100. The hydraulic pulping machine 100 includes a cylinder. A circular separating sieve plate is installed on the lower side of the cylinder. The upper cavity of the separating sieve plate cylinder is a pulp chamber, and the lower cavity of the separating sieve plate cylinder is a pulp chamber.

The central part of the corrugated paper separator sieve plate is provided with a round hole of the main shaft, the upper end of the main shaft passes through the separator sieve plate and is equipped with a propeller, and the lower end of the main shaft is discharged from the barrel and connected with the drive device; Describe the connection at one side of the pulp chamber of the mud tube. Before the receiving tube is connected to the ground mud pool, for example, the pulp chamber and the discharge tube at one side of the discharge tube are connected in the trash tank. While the propeller at the bottom is close to the propeller wood pulp plate on the surface of the split sieve plate, the ability to scrape the surface of the sieve plate ensures that the mesh is not easily blocked. At the same time, the strength of separating the sieve plate is high because of the scraping effect.

The sand excavation groove is a strip shaped square groove, and the bottom wall of the square groove is inclined upward; A screw is arranged in the sand digging groove, a screw drive motor is arranged at one side of the bottom of the sand digging groove, the rotation axis of the screw is parallel to the bottom wall of the sand digging groove, and a slag outlet is arranged on the upper side of the inner wall of the sand digging groove of the screw; The screws are axle less; An overflow pipe is arranged at the middle side of the sand digging groove, a filter screen is arranged at the inlet of the overflow pipe, and the overflow pipe is connected with the secondary slag remover; Dredging tank replaces the traditional sedimentation tank structure. The sedimentation tank also needs to be equipped with a special grab bucket. The screw runs directly from the bottom of the dredger to transport the slag to the dredging outlet in time;

A slurry barrel is installed directly below the impeller body. The slurry outlet is used for the inlet of the filter barrel. The slurry outlet barrel is evenly divided into several inlet holes within a week. The lower end of the slurry outlet filter pipe is connected to the slurry pool through a pipe before grinding. When the impeller is running, the slag with large mass will not enter from the upper hole of the slurry filter cartridge due to the large centrifugal force. The feed hole at the circumference of the filter cartridge can also feed slurry well.

The corrugated paper mud filter cartridge comprises a plurality of stacked annular surfaces, the upper and lower surfaces of the annular surface are respectively provided with a plurality of grooves or projections, and two adjacent annular surfaces are integrated with the convex clips through the grooves; The upper and lower surfaces of the torus are also provided with radial feeding holes, and the diameter of the feeding holes gradually expands from the outside to the inside. The design makes the height of the slurry filter tube adjustable, and the slurry inlet is not easy to be blocked. The distance between the slurry filter barrel and the impeller directly determines the size of the port where the slurry enters the slurry filter barrel, ensuring the quality of the slurry.

The cylinder of the hydraulic pulper is drum shaped, including the upper part of the ellipsoid and the lower part of the inverted cone. The inner wall of the cylinder is equipped with a rising spiral counter flow plate, whose rotation is opposite to that of the rotor; The diameter of the upper ellipsoid gradually becomes larger from top to bottom, and the diameter of the lower end face is larger; The diameter of the first part of the lower inverted cone decreases gradually from top to bottom, and the upper end face is connected with the lower end face of the ellipsoid. The inverted cone structure at the bottom makes the slurry produced by the slurry rotor flow easily, and reduces the energy loss of the slurry hitting the wall along the trough bottom. The direction of the return plate on the inner wall of the tank body is opposite to the rotation direction of the rotor, forming a 45 ° angle with the bottom of the tank body, which makes the wrinkled paper flow subject to resistance in the circumferential and vertical directions, and increases the turbulence degree of the wrinkled paper flow; At the same time, the crepe paper pushes the paper material to the rotor area at the center and bottom of the tank body to strengthen the pulp and effect.