A screw extrusion automatic dehydration device

Abstract

The invention discloses an automatic screw-extrusion dewatering device which comprises a rack, a feed hopper, a screw extrusion mechanism and a driving mechanism. The screw extrusion mechanism comprises screw blades, a lining sleeve, a driving shaft and a sieve barrel, the sieve barrel is obliquely arranged on the rack through a sieve-supporting skeleton, the feed end of the sieve barrel is lower than the discharge end of the sieve barrel, the feed hopper is arranged at the top of the feed end of the sieve barrel, the screw blades are arranged on the outer peripheral wall of the lining sleeve, distance among blades of the screw blades are lessened prior to increased along the conveying direction of slag materials and then ultimately remained the same arrangement, the lining sleeve sleeves the driving shaft, one end of the driving shaft is connected with the output end of the driving mechanism, and the sieving barrel is sleeved with a sealing box. The automatic screw-extrusion dewatering device is reasonable in structural design, good in material tearing effect, humidity of the materials of the discharge port can be adjusted, a filter sieve is conveniently cleaned, and dewatering effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of screw dehydration equipment, in particular to a screw extrusion automatic dehydration device. Background technique [0002] The screw extruder is a mechanical extrusion dehydration device, which has a good dehydration effect on a variety of sheet materials with high water content. Its working principle is that when the motor drives the reducer and the screw shaft operates normally, the material is evenly added from the feed box, and the material entering the chute is pushed forward along the spiral groove under the thrust of the screw blade, and the material is pushed to the variable pitch and screw. During the extrusion section formed by the spiral blade, it is affected by the changing pitch, screw diameter, spiral blade and pressure screen frame, through the frequency conversion control of the motor, a large controllable torque is formed, and the extrusion force and friction force Extruding and dehydra...

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Problems solved by technology

[0003] However, the screw extruders currently on the market are generally designed to dehydrate the material. During work, the force of extrusion and tearing of the material is not strong enough during the process of moving the material to the discharge end with the friction force, resulting in the tearing of the material. The cracking effect is not very obvious; due to its own structural defects, the existing device cannot adjust the dry humidity of the material at the discharge port according to the needs; and the solid-liquid separation of the material is carried out openly, and the smell of the material is easy to spread, which will pollute the working environment; in addition , After the use of the screw extruder, the filter layer is easily blocked by material particles. Since the filter layer is set inside the machine body, it is inconvenient to clean, which will greatly reduce the subsequent dehydration effect.

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