Plate-and-frame filter press for stevioside production

By designing a plate and frame filter press with extrusion and collection components inside the chamber, the problem of filter clogging in stevia production was solved, enabling convenient cleaning and efficient production.

CN223774389UActive Publication Date: 2026-01-09SHANDONG HAIGEN BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520206230.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-09
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

The filter screens of existing plate and frame filter presses used in stevia production are easily clogged by stevia raw materials, leading to inconvenient cleaning and reduced production efficiency.

Method used

A plate and frame filter press is designed, comprising a housing, filter plates, trapezoidal plates, square frames, sealing plates, rotating shafts, fixing pins, fitting pads, rotating rudders, extrusion components, and a collection component. The extrusion component presses stevia raw materials, and the collection component collects the residue. The square frame is removable for cleaning, preventing the filter plates from clogging.

Benefits of technology

This effectively prevents filter plate clogging, ensures normal stevia production, reduces worker fatigue, and improves production efficiency.

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Abstract

The utility model relates to the technical field of stevioside production, in particular to a plate-and-frame filter press for stevioside production, which comprises a box body, a filter plate and a connecting unit, the connecting unit comprises a trapezoidal plate, a square frame, a sealing plate, a rotating shaft, a fixing pin, a wedging pad, a rotating rudder, an extrusion assembly and a material receiving assembly, the filter plate is arranged on the inner side wall of the box body, and the square frame is arranged on the inner side wall of the box body. In actual use, a stevioside raw material is squeezed through the squeezing assembly, juice drops into a cavity formed by the box body and the trapezoidal plate from the filtering plate, then residues are collected through the material collecting assembly, a rotating rudder is held after use for a period of time, the rotating rudder rotates to drive a fixing pin to rotate, and the fixing pin is driven to be parallel to a square frame; and the mounting mode is opposite to the dismounting mode, so that the condition that the filter plate is blocked is avoided, the normal production of stevioside is ensured, and the fatigue strength of workers is effectively reduced.
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