Pulp preparing device with silencer

Abstract

The invention discloses a pulping device equipped with a muffler. The upper end of the blasting cylinder is provided with a feed port, and the feed port is fixedly connected with the blasting tube through a top valve. A bottom valve is provided at the lower part of the blasting tube, and the blasting tube is connected to a conveying pipeline through the bottom valve. Fixed communication, the delivery pipe is fixedly connected with the fiber receiving tank, the fiber receiving tank is fixedly connected with the muffler, the muffler is composed of an upper part and a lower part; the upper part includes: an inner layer and an outer layer, the inner layer is fixedly inserted into the outer layer, and The diameter of the pipe is smaller than that of the outer layer; the length of the inner layer is the same as that of the outer layer, and the length of both is more than twice the length of the lower part of the muffler. A plurality of point-shaped exhaust holes are arranged on the outer periphery of the inner layer. The inner and outer layers of the upper part of the muffler are preferably set in a spiral structure. The muffler of the present invention is installed in the fiber receiving groove, and the explosion sound is removed through the muffler. The main part of the muffler is actually a double-layer discharge with a certain diameter and length. The unique structure of the pipe makes the blasting sound quickly converted and consumed in the pipe, and the noise is quickly reduced.

Description

technical field [0001] The invention relates to a pulping device, in particular to a pulping device provided with a silencer. Background technique [0002] At present, explosion pulping (explosion pulping) is referred to as Ep, also known as steam explosion pulping (class irrigation), which was first proposed by Mason in 1927. He used high-pressure 285°C steam to explosively dissociate wood chip waste into fibers to obtain a brown slurry. During the dissociation process, many free radicals of lignin were produced, and the slurry was extruded to make building artificial boards. In order to prevent the fiber from degrading at high temperature, liquid ammonia was used instead of water. Although it was successful, it was difficult to industrialize production. Abroad, such as Canada, Japan, Sweden, etc. are further studying the Ep method. The Ep method is an advanced pulping process with high yield, low energy consumption, and pollution-free, which is in line with the develop...

AI Technical Summary

Problems solved by technology

[0005] One of the disadvantages of the process is the strong explosion noise produced during blasting

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