RU2654603C1 - Device for two-step purification of food liquids, mainly milk - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular to filtering and filtering devices for cleaning milk, and can be used in dairy production. Device for two-stage cleaning of food liquids, mainly milk, contains a cylindrical body 1 with a vertically arranged inlet 2 and inlet 3 nozzles. In device case 1 there is fixing adapter 4 with conical distributor 5 installed therein, having guide rails 6 fixed thereon. In fixing adapter 4 a settler 7 is made and lattices 8 are mounted on it. Conical filter element 9 of the coarse filter is fixed in fixing adapter 4 and placed around guides 6. Fine filter element 10 is located on fixing adapter 4 between gratings 8 and is located under the coarse filter. Body is cylindrical and has lid 11 with inlet fitting 2, which is installed through sealing ring 12 on conical body 1 with the possibility of fixing conical filtering element 9 for coarse cleaning.

EFFECT: invention provides an increase in the efficiency of cleaning milk and food liquids while maintaining quality indicators and reducing material costs.

1 cl, 1 dwg

Description

FIELD OF THE INVENTION

The invention relates to agriculture, in particular to filter and filtering devices for milk purification, and can be used in dairy production.

State of the art

Known devices for cleaning milk on dairy farms, which are installed directly in the cleaning system, are a two-layer cleaner, the outer layer of which is made of lavsan, and the inner one is finely porous of polypropylene, which provides finer filtration (Arzhamentov A.G. Improving the primary processing of milk. - M .: VO Agropromizdat, 1990, p. 21-22).

A significant drawback of these filters is that they are quickly clogged by mechanical impurities, which entails frequent replacement of the filter. The use of such filters in production is ineffective because of their low reliability in operation and low quality filtration.

An effective filtration apparatus for cleaning food liquids, mainly milk, is known, including a housing with a nozzle for supplying the initial liquid and drainage of the filtrate, a permeable partition installed in the housing, consisting of sections for placing granular filling of solid granules in them, the fraction of which in the upper section exceeds the size of the fractions in the lower section made of aluminum oxides, or titanium, or zirconium, or their alloys with open porosity not exceeding 0.1% of the diameter of the granule (see patent RU 2054299, cl. A01J 11/00, publ. 02.20.1996).

The disadvantages of this filtration apparatus are: design complexity, high cost and inconvenience in operation, with reduced ability to completely remove bacteriological impurities, which significantly reduces its effectiveness.

The known "filter trap", made in the form of a vertical cylindrical filtering surface with a jacket around it and a lower conical part for sludge, moreover, the filter trap is equipped with a brush device rotating with an independent drive with a blade screw (see AS USSR No. 104520, Cl. 12e, 1562, 1950).

Its disadvantage is the need to create a forced reverse fluid flow to flush the filter surface.

The closest in technical essence and the achieved positive effect and accepted by the authors as a prototype is a two-stage milk filter containing a housing with an inlet pipe tangentially located to it, a nozzle with an outlet pipe, a spring-loaded diaphragm with a plunger, a conical plate with outer ribs, a mesh, an impeller, filter element, a removable cylindrical sump with a cover and a dirt pipe, a spring-loaded double-acting valve block controlled by a rotary lever (see RF patent No. 2454859, A01J 11/06).

The disadvantages of this design are as follows.

The known two-stage milk filter is structurally complex, quite expensive, with reduced repair capabilities, which significantly reduces its effectiveness.

Disclosure of invention

The objective of the invention is to develop a two-stage purification of food liquids, mainly milk, designed to remove mechanical impurities from milk, since when washing large particles from them various kinds, including pathogenic microorganisms, will come out of milk in order to increase the cleaning efficiency preserving the quality and technological properties of milk, as well as reducing labor costs.

The technical result that can be achieved using the present invention is to increase the efficiency of the process of cleaning milk and food liquids, maintaining its quality indicators, reducing labor costs.

A device for two-stage cleaning of food liquids, mainly milk, containing a housing with inlet and outlet nozzles, a coarse and fine filter, a settling tank, a fixing adapter with a conical distributor with guides installed around it, a conical filter element for coarse cleaning, and a fixing adapter additionally equipped with a fine filter element and a sump for collecting large mechanical impurities, the housing is cylindrical. The conical filter element is made of a food microgrid.

Brief Description of the Drawings

The drawing shows a device for two-stage purification of food liquids, mainly milk

The implementation of the invention

The device for two-stage purification of food liquids, mainly milk, contains a cylindrical housing 1 with a vertically located inlet 2 and inlet 3 nozzles. In the housing 1 of the device there is a fixing adapter 4 with a settling tank 5 and a fine filter element 6, tightly pressed by the grill 7. A conical filter element 8 of coarse food microprocessor is located around the conical distributor 9 with guides 10 screwed into the fixing adapter 4. Removable cover 11 sec O-rings 12 are screwed onto the housing 1.

A device for two-stage purification of food liquids, mainly milk, works as follows. Milk or food liquids through the inlet 2 enter the conical distributor 9 and rush along the guides 10 to the coarse filter element 8 of coarse cleaning, which traps large particles of contaminants (1st cleaning stage), and through the grate 7 to the filter element 6, where it it is finally cleaned (2nd cleaning stage) and is discharged through the outlet pipe 3. Large particles of contaminants due to the movement of the guides 10 of the conical distributor 9 along the coarse conical filter element 8 gayutsya and settle in the sump 5. Thus, there is a continuous and automatic cleaning of the conical filter element 8 of coarse contaminants during operation the two-stage cleaning of food liquids, preferably milk. The presence of the first stage of milk purification from large mechanical inclusions with their constant drainage and collection in the clarifier 5 reduces the load on the filter element 6 and contributes to the production of milk of higher grades in purity, because large mechanical inclusions are constantly discharged into the clarifier 5, are not exposed to the subsequent flow milk or food liquids and are not washed away, which prevents the ingress of microorganisms contained in them.

To remove impurities from the sump 5, the removable cover 11 with the sealing rings 12 is removed, then the conical distributor 9 is unscrewed and through the formed threaded hole of the fixing adapter 4, the contaminants from the sump 5 exit to the outlet pipe 3.

Thus, the claimed design of a two-stage purification of food liquids, mainly milk, allows you to provide the following advantages compared with known solutions:

- receipt of milk of the 1st purity group due to two-stage purification and continuous collection of contaminants in the sump;

- preservation of the technological properties of milk by eliminating structural changes in its fat phase;

- high reliability and long service life with compactness and simplicity of the design of the device;

- easy, safe and convenient maintenance that does not require special training;

- easy and quick replacement of the spent filter element without additional devices;

- versatility of use by providing mountability in various systems for filtering food liquids and milk;

- high efficiency of use due to the lack of repair costs;

Claims (2)

1. A device for two-stage cleaning of food liquids, mainly milk, containing a housing with inlet and outlet nozzles, a coarse filter made in the form of a cone, and a fine filter element, a settler, characterized in that it is equipped with a fixing adapter located in the housing with it with a conical distributor with guides, moreover, in the fixing adapter there is a settler for collecting large mechanical inclusions and lattices mounted on the fixing adapter are installed, conical the filter element of the coarse filter is mounted in the fixing adapter and placed around the guides of the distributor, the filter element of coarse filter is placed on the fixing adapter between the grilles and is located under the conical filter of coarse cleaning, the housing is cylindrical and has a cover with an inlet pipe installed through the sealing ring onto the housing with the ability to fix the conical coarse filter. 2. The device according to claim 1, characterized in that the conical filter element of the coarse filter is made of a food micro grid.

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