RU208286U1 - Device for two-stage purification of food liquids - Google Patents

Abstract

The utility model relates to agriculture, in particular to filtering and filtering devices for milk purification, and can be used in dairy production. maintaining quality indicators and reducing material costs. A device for two-stage purification of milk and food liquids, containing a housing with inlet and outlet pipes, a coarse filter and a fine filter element, the sump is additionally equipped with a fixing adapter placed in the housing with a conical distributor installed in it with guides, moreover, gratings fixed on the fixing adapter are installed in the fixing adapter, the conical filter element of the coarse filter is fixed in the fixing adapter and is placed around the distributor guides, the fine filter element is sized mounted on a fixing adapter under the grate and the conical coarse filter, the body being cylindrical, the lid has an inclined inlet pipe with an offset from the center, in the lower part of the body there is a cylindrical sump for collecting large mechanical impurities, having outlets and an end part in the upper part , made in the form of a cone, and the cylindrical sump is equipped with a removable cover with a dirt outlet and a double-acting valve block, the stem of which is connected to a rotary lever. Fig. 2.

Description

The technical field to which the utility model belongs

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

State of the art

Known devices for purifying milk on dairy farms, which are installed directly into the purification system are a two-layer purifier, the outer layer of which is made of polypropylene, and the inner thin-porous layer of polypropylene, which provides finer filtration (Arzhamentov A.G. Improvement of primary milk processing. M .: VO Agropromizdat., 1990, p.21-22).

A significant disadvantage of these filters is that they quickly become clogged with mechanical impurities, which entails frequent filter replacement. The use of such filters in production is ineffective due to their low reliability in operation and low quality of filtration.

An effective filtration apparatus for purifying food liquids, mainly milk, is known, including a housing with a branch pipe for supplying the initial liquid and removing the filtrate, a permeable partition installed in the housing, consisting of sections for placing in them granular filling of solid granules, the size of the fraction of which in the upper section exceeds the size of the fraction in the lower section made of oxides of aluminum, or titanium, or zirconium, or their alloys with open porosity not exceeding 0.1% of the granule diameter (see patent RU 2054299, class A01J11 / 00, publ. 20.02.1996).

The disadvantages of this filtration apparatus are: the complexity of the design, high cost and inconvenience in operation, with reduced capabilities for the complete removal of bacteriological impurities, which significantly reduces its efficiency.

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

Its disadvantage is the need to create a forced backflow of liquid for flushing the filtering surface.

The closest in technical essence and the achieved positive effect and taken 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 external ribs, a mesh, an impeller, a filter element, a removable cylindrical sump with a lid and a dirt discharge pipe, a spring-loaded double-acting valve block controlled by a pivoting lever (see RF patent No. 2454859, A 01 J 11/06).

The disadvantages of this design are as follows. The known two-stage milk filter is structurally complex, rather expensive, with reduced possibilities for its repair, which significantly reduces its efficiency.

Disclosure of a utility model

The task of the proposed utility model is to develop a device for two-stage purification of milk and food liquids, designed to remove mechanical impurities, since when large particles are washed out, various kinds, including pathogenic, microorganisms will be released from them into milk and food liquids in order to increase the cleaning efficiency , maintaining the quality and technological properties of the original product, as well as reducing labor costs.

The technical result, which can be achieved using the proposed utility model, is reduced to increasing the efficiency of cleaning milk and food liquids while maintaining quality indicators and reducing material costs.

A device for two-stage purification of milk and food liquids, containing a housing with inlet and outlet nozzles, a coarse filter and a fine filter element, a sump is additionally equipped with a fixing adapter located in the housing with a conical distributor installed in it with guides, and in the fixing adapter there are grids fixed on the fixing adapter, the conical filter element of the coarse filter is fixed in the fixing adapter and is placed around the distributor guides, the fine filter element is located on the fixing adapter under the grate and the conical coarse filter, and the body is cylindrical, an inclined inlet pipe is mounted in the cover with an offset from center, in the lower part of the body there is a cylindrical sump for collecting large mechanical impurities, having outlet openings in the upper part and an end part made in the form of a cone, and the cylindrical sump is equipped with a removable roof a drum with a dirt discharge pipe and a double-acting valve block, the stem of which is connected to a pivoting lever.

Brief Description of Drawings

FIG. 1 shows a general view of a device for two-stage purification of milk and food liquids.

FIG. 2 - position of the valve block when discharging contaminants from the cylindrical sump.

Implementation of the utility model

The device for two-stage purification of milk and food liquids contains a cylindrical body 1 with an obliquely located inlet nozzle 2, offset from the center and outlet nozzles 3. Equipped with a fixing adapter 4 located in the housing 1 with a conical distributor 5 installed on it, having guides 6 fixed on it 6. The fine filter element 7 is located on the fixing adapter 4 under the grate 8 and is fixed by a coarse conical filter 9. The conical distributor 5 is under its own weight rests on the guides 6 on the conical coarse filter 9, directing the milk flow between them. The cylindrical body 1 and has a cover 10 with an inlet pipe 2, installed through a sealing ring 11 on a cylindrical body 1 with the possibility of fixing a conical coarse filter 9. A cylindrical sump 12 is screwed to the bottom of the cylindrical body 1, with a double-acting valve block installed in it 13 , which is connected to the pivot arm 14 of the cylindrical sump 12 and is equipped with a lid 15 with a dirt discharge pipe 16 and a spring 17 put on a double-acting valve block 13. The device for two-stage purification of milk and food liquids operates as follows. Milk or food liquids through an obliquely located inlet 2 located on the lid 10 is displaced from its center, allowing in a gentle mode to supply milk to the conical distributor 5, excluding the return flow of milk and whipping it, rush along the guides 6 to the coarse conical filter element 9, which retains large particles of contamination (1st stage of cleaning), and then through the grate 8 enters the fine filter element 7, where it is finally cleaned (2nd stage of cleaning) and is removed through the outlet pipe 3. Large particles of contamination due to the creation the movements of the guides 6 of the conical distributor 5 along the conical coarse filter element 9 advance and settle in the cylindrical sump 12. The cover 10 presses the fine filter element 7 with an O-ring 11 through the coarse conical filter element 9, which in turn presses the grate 8 installed on the fixing adapter 4.

To remove contaminants from the cylindrical sump 12, the pivot arm 14 is turned clockwise and set in a horizontal position (Fig. 2), which ensures the movement of the double-acting valve block 13 to the lower position. The upper part of the cylindrical sedimentation tank 12 is closed by a lid 15 and does not come into contact with milk or food liquid in the cylindrical body 1; therefore, the milk ceases to come into contact with contaminants. Simultaneously with the closure of the upper part of the cylindrical sedimentation tank 12, its lower part is opened by a double-acting valve block 13, which ensures the release of contaminants through the dirt drain pipe 16 into the collection tank or sewer. When the pivot arm 14 returns to its original position, the spring 17 raises the double-acting valve block 13 to the upper position. The upper part of the cylindrical sump 12 is opened, which contributes to the re-accumulation of contaminants. The lower part of the cylindrical clarifier 12 is closed, which prevents the passage of milk. Thus, the conical filter element of coarse cleaning 9 is cleaned from impurities during the operation of the device for two-stage purification of milk and food liquids. The presence of the first stage of cleaning milk from large mechanical impurities with their constant removal and collection into a cylindrical settler 12, reduces the load on the fine filter element 7 and contributes to the production of milk of the highest purity grades, because large mechanical inclusions are constantly discharged into the cylindrical clarifier 12, are not affected by the subsequent flow of milk or food liquids and are not eroded, thereby preventing the ingress of microorganisms contained in them.

Thus, the claimed design of two-stage purification of milk and food liquids provides the following advantages over the known solutions:

obtaining milk of the 1st group of purity due to two-stage cleaning and constant 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 a compact and simple 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 due to the provision of mounting in various filtration systems for food liquids and milk;

high efficiency of use due to the absence of repair costs.

Claims (1)

A device for two-stage purification of food liquids, containing a housing with inlet and outlet nozzles, a coarse filter and a fine filter element, the sump is additionally equipped with a fixing adapter located in the housing with a conical distributor with guides installed in it, and in the fixing adapter there are grids fixed on the fixing adapter, the conical filter element of the coarse filter is fixed in the fixing adapter and is placed around the distributor guides, the fine filter element is located on the fixing adapter under the grate and the conical coarse filter, and the body is cylindrical, characterized in that an inclined inlet pipe with off-center.

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