Product Details
Product Introduction
Traditional cake filtration and diatomaceous earth filtration—commonly referred to as direct-flow filtration—involve the slurry flowing perpendicular to the surface of the filter medium, with solids being retained by the medium and gradually forming a filter cake. As filtration continues and the cake thickens, the filtration rate declines markedly until the filtrate ceases to flow. In contrast, membrane filtration employs cross‑flow filtration, in which a recirculation pump drives the feed fluid at high velocity through the pores of a membrane with a specific pore size. Under pressure, the permeate is drawn off tangentially, while the retentate, due to its high‑velocity flow, generates turbulence that continuously rinses the membrane surface, carrying away any solid particles adhering to it. This prevents membrane fouling and ensures steady filtration. Compared with conventional dead‑end filtration, cross‑flow filtration offers significant advantages. For instance, under identical conditions, the permeate flow rate in dead‑end filtration drops to zero within minutes, whereas cross‑flow filtration maintains a nearly constant flow. Moreover, cross‑flow filtration is insensitive to variations in feed concentration and can successfully handle highly contaminated feeds without prior pretreatment.
Working principle
1. The membrane material, which is high-strength, acid- and alkali-resistant, and oxidation‑resistant, can withstand intensive, frequent backflushing as well as prolonged, high‑concentration chemical cleaning, thereby ensuring long service life and low operating costs.
2. With a fixed pore size and no filter aid added, the filtration performance is stable and reliable, completely eliminating the various sources of instability inherent in diatomaceous earth filtration as well as the environmental burdens associated with spent filter cake disposal.
3. High-precision, sterilizing-grade filtration delivers exceptionally clear effluent, achieving a sterilization efficiency of over 99% while leaving the food’s valuable components—such as sugars, amino acids, alcohols, and lipids—unaffected.
4. It can handle filtration of highly turbid and highly viscous liquids, completing both coarse and fine filtration in a single step, eliminating the need for conventional cotton‑cake or diatomaceous earth filters as pre‑filters.
5. The unique cross-flow process design and automated self‑cleaning during operation ensure continuous, large‑scale separation; compared with conventional membrane separation equipment, it improves separation efficiency by more than 40% and delivers outstanding anti‑fouling performance.
6. The filter membrane assembly features a quick‑release, detachable design; when necessary, the membrane can be removed for thorough offline cleaning, resulting in improved cleaning performance. Additionally, the reusable housing significantly reduces the cost of membrane replacement.
7. The most practical modular separation unit design allows for operation with either all or partial separation modules, depending on the total separation volume, offering advantages such as a small footprint, low energy consumption, minimal liquid holdup, and reduced waste.
8. The system employs a PLC‑based automated control system, offering exceptionally simple operation. Optional online monitoring and protection of separation parameters such as temperature, pressure, and turbidity are available, fully preventing improper handling from compromising equipment performance or separation efficiency.
9. CIP‑type automatic cleaning and disinfection, convenient and thorough, ensures ideal restoration of the membrane’s separation performance.
10. The entire machine is manufactured from food-grade stainless steel 304 or 316L, complying with national food and pharmaceutical hygiene standards and QS/GMP certification requirements.
Product Applications
Membrane filtration equipment, also known as membrane filtration systems, is suitable for processing liquids such as yellow wine, rice wine, baijiu, fruit wine, grape wine, cooking wine, edible vinegar, soy sauce, and tea beverages.
Keywords
Membrane filtration equipment
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No. 3, East 1st Street, Hengli Town, Nansha District, Guangzhou City, Guangdong Province, China
Company Address:
No. 3, East 1st Street, Hengli Town, Nansha District, Guangzhou City, Guangdong Province, China
E-mail:
Contact phone number:
Mr. Xie
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