Headbox

The slurry tank is used to deliver the appropriate concentration of the slurry to the on-pment, such as the pulping device, the rectifying device, the weir and the nozzle of the weir plate. When the slurry is sprayed from the slurry box to the copper network, it forms a wet paper page and dehydrates the network. Is squeezed, after extrusion with mechanical method by the network department of wet sheet of water, improve the sheet dryness, improve the surface properties of sheet at the same time, eliminate the mark and increase smoothness, tightness and strength; Then it goes into the roasting cadre to further dehydrate the compressed wet paper, which causes the paper to contract, and the fiber is tightly coupled and increases the strength.<br /><br />Open flow slurry tank technical requirements: 1. Adapted to the speed of 10-300 - m/min. 2. The finished paper quantitative: 14-1500 - g/m squared 3. Internet concentration: 0.1 2.5% 4. Net of paper width: 1092-5500 the following paper machine it by slurry, diffusion, homogenate, sizing of the main parts. Used by ladder form, cloth paste and paste part of the stainless steel 304, body surface grinding and polishing and slurry interface, mirror polishing, inner wall roughness of 0.4 um, other parts of the 1.6 ~ 0.8 um, with pulp part there is no hang pulp nomenon. Step diffuser is smooth, and plasma interface roughness of 0.4 um, homogenate roll were made with stainless steel: homogenate roll both internal and external wall and around fine polishing, has () filtering water spray pipe to eliminate in slurry bubble and avoid hanging pulp, upper lip plate is coarse and fine tune of two sets of equipment, coarse adjustment device can make the whole picture of upper and lower lip plate adjustment, in order to achieve the copy paper is quantitative; The adjustment mechanism and spacing make the lip plate opening along the whole width. To adjust the local banner ration. The device has a fine micrometer. The slurry box is equipped with vertical, horizontal walking platform, railings, escalators and so on. Handrail, armrest, platform frame and bracket adopt shape steel, railing, handrail exterior galvanizing. The vertical plate is galvanized steel grid plate, the horizontal plate is stainless steel plate