Straw washing and silt removing equipment

Abstract

The invention discloses straw washing and silt removing equipment. The straw washing and silt removing equipment comprises a rack, a washing device, a silt collection and precipitation device, a separation device and a silt conveying device, wherein the washing device is mounted on the rack, and used for stirring and washing straw; the silt collection and precipitation device is mounted below the washing device, and used for collecting and precipitating silt and washing water which flow out of the washing device after the washing; the separation device is partially mounted in the silt collection and precipitation device, and used for separating the collected and precipitated silt and washing water; and the silt conveying device is connected with the outlet end of the separation device, and used for conveying the silt separated from the washing water to the outside world. The straw washing and silt removing equipment disclosed by the invention has the advantages that the straw is washed clean; less fragments are generated; the silt is automatically discharged; the washing water is separated out for recycling; the on-site environment is clean; no manual cleaning is needed; the operation is stable; and the power consumption is low.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of plant straws, in particular to straw washing and sand removal equipment. Background technique [0002] In the technical field of comprehensive utilization of plant straws, the washing and desanding treatment of straws is often borrowed from the existing washing and desanding devices in the pulp and paper industry. At present, there are mainly washing and desanding devices with the following structural forms. [0003] One is to adopt the structure of the hydraulic grass washer. The hydraulic grass washer is mainly used for wet preparation of grass raw materials, and it is washed to remove sediment. The device is installed in a spherical tank with a rotating rotor cutter head. Below the cutter head is a fixed bottom cutter head and a sieve plate with round holes. Under the action of the eddy current in the tank formed by the rotation of the rotor cutter head, the grass slices wa...

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Problems solved by technology

Washing with this kind of device consumes a lot of power, and the friction of the powerful cutter head produces more forage fragments into the washing water, and the washing loss rate of the grass fragments is large; the washing water separated by the helical screw dehydrator has a large amount of water and contains mud. Sand, broken grass and other impurities need to be separated by additional separation equipment, resulting in poor site environment

[0004] The second is to use the roller washing machine mainly used for washing wood chips, bamboo chips and other sheet materials to wash grass raw materials, that is, straw raw materials. The device has a washing tank, and a roller rotor is installed in the tank. The use of this equipment for washing straw materials has the following disadvantages: first, the straw materials are fluffy, easy to float on the water surface, and the washing effect is poor; secondly, the fluffy structure of the straw materials has a greater adhesion to the sediment than wood chips and other materials, and the washing Difficulty; and because there is no sieve plate at the bottom, the material will be discharged with the sand discharge, resulting in material loss and increasing the difficulty of washing water purification

[0005] The above washing methods, the discharged sediment contains a large amount of material fragments and washing water. At present, there is no good separation method, and the separation effect is generally not good. The sand and water flow on site and the surrounding environment is poor.

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