Extrusion device for dry type granulator

Abstract

The invention relates to an extrusion device for a dry type granulator. The extrusion device comprises an upper tank body, a lower tank body, an extrusion wheel 1, an extrusion wheel 2, a hydraulic cylinder block, a hydraulic cylinder and a hydraulic control system, wherein the hydraulic cylinder block is assembled above the lower tank body; the upper tank body is arranged between the lower tank body and the hydraulic cylinder block; the extrusion wheel 1 is assembled on the lower tank body; the extrusion wheel 2 is assembled on the upper tank body; one end of the hydraulic cylinder is assembled on the hydraulic cylinder block; the other end of the hydraulic cylinder is connected with the upper tank body; the hydraulic cylinder is provided with an oil inlet end 1 and an oil inlet end 2; the hydraulic control system comprises an oil tank, a hydraulic pump and a direction valve, which are sequentially connected in series; the direction valve is connected with the oil inlet end 1 and the oil inlet end 2; a branch circuit composed of a pressure transmitter, a control valve and an energy accumulator is connected between the hydraulic cylinder and the direction valve in parallel; the pressure transmitter is used for collecting the pressure of the hydraulic cylinder and feeding the pressure back to the control valve; and the control valve is used for controlling opening and closing of the energy accumulator to supplement or release the pressure of hydraulic oil, thus automatic pressure supplement and automatic clearance adjustment of the extrusion device are achieved; and the extruded material is relatively uniform in thickness and compactness.

Description

technical field [0001] The invention relates to an extrusion device, in particular to an extrusion device for a dry granulator. Background technique [0002] In the dry granulator, the extrusion device includes a hydraulic system driven by a motor to apply high pressure to the extrusion wheel set. After the material enters the extrusion device, it is squeezed by the extrusion wheel set to obtain the desired state of the material. In the prior art, during the extrusion process, the material will inevitably cause overflow, uneven density, and material adhesion to the surface of the extrusion wheel. At the same time, it will also affect the work of the extrusion wheel, resulting in changes in the clearance of the extrusion wheel, density, The thickness is uneven, resulting in poor extrusion quality of the product. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an extrusion device for a dry granulator with uniform ...

AI Technical Summary

Problems solved by technology

In the prior art, during the extrusion process, the material will inevitably cause overflow, uneven density, and material adhesion to the surface of the extrusion wheel. At the same time, it will also affect the work of the extrusion wheel, resulting in changes in the clearance of the extrusion wheel, density, Uneven thickness, resulting in poor product extrusion quality

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