A kind of anti-flow plank blanket and the production method of the anti-flow plank blanket

Abstract

The invention discloses a loss-resisting plank blanket and a production method for the same. The plank blanket comprises a skeleton and three layers of fibers, wherein the skeleton is formed by superimposing 1 / 3 twill cloth and 2 / 2 twill cloth, the three layers of fibers are respectively an upper layer of fibers, a middle layer of fibers and a lower layer of fibers, the middle layer of fibers is connected to the 1 / 3 twill cloth and the 2 / 2 twill cloth in a penetrating manner, the upper layer of fibers is laid on the surface of the 1 / 3 twill cloth, the lower layer of fibers is laid on the surface of the 2 / 2 twill cloth, the fineness of the upper layer of fibers, the middle layer of fibers and the lower layer of fibers is sequentially increased, and the porosity of the upper layer of fibers, the middle layer of fibers and the lower layer of fibers is sequentially increased to form an inverted funnel-shaped water discharging passage. By adopting the loss-resisting plank blanket, the problems that the plank is unsmooth to dehydrate in the calcium silicate plate production process, so that the plank cannot be formed and pulp is severely lost for a well dehydrated plank in the prior art can be solved. The loss-resisting plank blanket has advantages of simple structure, good dehydration effect and capability of resisting the loss of the pulp.

Description

technical field [0001] The invention belongs to the technical field of filter materials, and in particular relates to a flow-resistance sheet blanket and a production method of the flow-resistance sheet blanket. Background technique [0002] The traditional calcium silicate board uses loose short fibers such as inorganic mineral fibers or cellulose as reinforcement materials, and uses siliceous-calcium materials as the main cementing material. Plates made of calcium silicate gel. During the production process of the blockage sheet blanket, due to poor dehydration, the sheet cannot be formed, and if the dehydration is good, there is a lot of slurry such as cement, which causes material waste, which makes the production cost high and pollutes the environment. Contents of the invention [0003] The first object of the present invention is to provide a loss-reducing board blanket, which solves the problems existing in the production process of calcium silicate boards in the p...

AI Technical Summary

Problems solved by technology

In the production process of the blockage sheet blanket, due to poor dehydration, the sheet cannot be formed. If the dehydration is good, there is a lot of slurry such as cement, which causes material waste, which makes the production cost high and pollutes the environment.