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Beer equipment deep bed multi-level filtration system

The deep-bed multi-level filtration system of beer equipment is mainly composed of two parts, namely the filter and the filter pad. The filter is a closed system consisting of a vertical stainless steel body, top and bottom pans, filter elements and compression system. The filter pads are stacked in a vertical stainless steel body. If you need to improve the beer filtration capacity, you only need to increase the number of filter pads.

At the heart of this filtration system is a unique filter mat made of cellulose and diatomaceous earth. When the beer is being filtered, the particles in it are trapped by the deep effect of the filter pad to achieve the purpose of sterilization, and the surface of the filter pad is not easy to be blocked. The thickness of each filter pad is 24mm, and the filter area is 0.25㎡. In addition, different types of filter pads can be selected according to needs to achieve the purpose of beer fine filtration or sterile filtration. The service cycle of the filter pad is: fine filtration average 150~200h; sterile filtration average 130~150h. The general filtration flow is 20t/h.

Beer equipment deep bed multi-level filtration system
The advantages of the deep bed multi-layer filtration system: the filter pad is a deep filtration, the surface is not easy to be blocked; the area is small; due to the use of pressure vibration safety protection, it can be installed in front of the filling line without a buffer tank; CO2 can completely pass through this system; low oxygen intake; filter pads can be recycled and reused by alkaline; no need to worry about environmental protection issues after filter pads are discarded. Beer filtration methods include cotton cake filtration, diatomaceous earth filtration, and microporous membrane filtration. Among them, the cotton cake filtration method is the oldest filtration method, which has been eliminated, and the diatomaceous earth filtration method is currently the most commonly used.
1. Diatomaceous earth filtration method

Commonly used equipment for diatomite filtration are plate and frame diatomite filters, leaf diatomite filters, etc. During operation, diatomaceous earth is generally pre-coated first, and then filtered. The continuous addition of diatomaceous earth during filtration plays the role of continuous replacement of the filter layer to ensure rapid filtration. The advantages of the diatomite filtration method are: the filter bed can be continuously updated during filtration, the filtration speed is fast, and the output is large; the surface area is large, the adsorption capacity is strong, and the particles below 0.1 ~ 1.0 μm can be filtered; the wine loss is low.

Beer equipment deep bed multi-level filtration system
The main features are:

1. The performance is relatively stable. Since the filter layer is laid on the rigid support ring, it is not easy to cause the pre-coating to break and deform.

2. High filtration efficiency. Since each filter rod is a separate channel during filtration, the filtration resistance is small and the filtration capacity is larger than other types of diatomite filtration when the filtration area is the same.

3. Easy to use, the machine is an integral structure, movable and easy to clean. After backwashing the filter barrel with a pump, it can be used continuously.

4. It has the characteristics of firmness and permanence, easy maintenance, few wearing parts of the machine, and they are all removable, and it is easier to replace the wearing parts.

2. Microporous membrane filtration method

Microporous film refers to a porous film made of synthetic fibers or plastics with strong biological and chemical stability. The materials for making membranes include polyurethane, polypropylene, polyamide, polyethylene, polycarbonate, acetate fiber, etc. The thickness of the membrane is 0.02-1 μm, and it is mostly fixed on a medium with a large pore size. When beer is filtered, it is generally coarsely filtered by a centrifuge or diatomaceous earth filter, and then sterilized by membrane filtration.

After beer filtration is completed, beer packaging is the last process in beer production, which has a direct impact on beer quality and appearance. Filtered beer is loaded from sake tanks into bottles, cans, or barrels, which are capped, biostabilized, labeled, and boxed into finished beer or sold directly as finished beer.