SU1191030A1 - Arrangement for separating whey vand moulding milk-protein coagulum - Google Patents

Abstract

Device for severing SERUM AND MOLDING milk protein clots, comprising a housing with a lid and coaxially mounted therein a perforated cylinder unloader knife device and a vibrator, characterized in that, in order to intensify the process of separating whey from milk protein clot, it equipped with a hollow cylinder with an elastic side surface associated with a system for supplying and discharging compressed air installed along the axis of the perforated cylinder at 0.3-0.35 of its height and rigidly connected with case cover. CbiSoponrfta.

Description

The invention relates to the dairy industry, namely to the production of cottage cheese, cheese.

The aim of the invention is to intensify the process of separation of serum.

FIG. 1 shows schematically a device for the separation of whey and the formation of a milk-protein clot, longitudinal section; in fig. 2 - the same cross section.

A device for separating serum and forming a milky protein clot includes a loading device 1, a housing 2 with a pipe for draining whey 3, a vertical, perforated, downwardly expanding cylinder for pressing 4, in which a hollow cylinder 5 is installed in the upper portion of the coaxially. The lateral surface of the hollow cylinder 5 is made of elastic material (for example, food rubber), and the bases 6 and 7 are made of steel and are rigidly interconnected by a rod 8 that attaches to the cover of the housing 2. The upper base 6 contains pipes 9 and 10 for inlet and outlet of air with solenoid valves 11, the operation mode of which is controlled by a software relay device. A reducer 12 is installed at the inlet 9 for supplying a certain pressure to the cavity of the cylinder 5 of compressed air. To communicate the vibratory oscillations to the perforated cylinder 4, the device is equipped with a vibrator 13. In the lower part of the cylinder 4 there is a knife unloading device 14.

The device works as follows.

At the start of operation, the perforated cylinder 4 through the loading device 1 is completely filled with a milk-protein clot, which is then continuously fed. After filling, a signal from the relay device receives a signal to the solenoid valve 11 of the inlet 9. The valve opens and the compressed air of a predetermined pressure is supplied to the cavity of the cylinder 5, which is installed by the gear 12, the lateral surface of the hollow cylinder 5 under the action of air pressure P, expanding moves in the radial direction and squeezes the serum from the clot enclosed between the side surfaces of the cylinders 4 and 5 (working stroke) (Fig. 2).

At the end of the working stroke (in accordance with the established mode of operation), the signal enters the solenoid valve of the outlet nozzle 10, the valve opens and the air is removed from the cavity of the cylinder 5. The side surface, squeezing, moves in the opposite direction and occupies the original position. Part of the clot is depressed under the action of vibrational oscillations of the perforated cylinder 4 and compaction of the total mass of the clot column moves through the cylinder 4 (idle), a clot, which is serum-valued, enters the space between the lateral surfaces of the cylinders and

repeats.

The ratio of working and idling time is such that it ensures the continuity of the flow of the clot into the device. The pressure of the compressed air is set depending on the initial

moisture milk protein clot to get the finished product standard humidity. The criterion in the choice of pressure is to prevent the perforated surface from being pressed in with a milk-protein clot.

The location of the hollow cylinder is selected on the basis of the experimentally established dependence of the change in the humidity of the clot WK. (the amount of separated serum) according to the height of the perforated cylinder H, under the action of the weight of the clot column PC (Fig. 3).

Only in the upper section, equal to 0.30-0.35 of the height of the perforated cylinder, does the main serum separation occur. Therefore, the placement of the hollow cylinder for

the limits of this region are ineffective due to the fact that a clot thickens below and, consequently, an increase in the hydraulic resistance for the separation of serum occurs.

Upon further advancement of the clot along the vertical perforated cylinder 4, its final dewatering and compaction occurs both under the action of its own weight and due to vibrational vibrations of the perforated cylinder 4. Serum is pressed during the dewatering of the clot out of the housing 2 through the nozzle 3. The finished product periodically separated by a knife unloading device 14.

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FIG. 2

Claims (1)

DEVICE FOR SEPARATION AND SERUM FORMATION OF MILK-PROTEIN CLOT, including a case with a lid and a perforated cylinder coaxially mounted in it, an unloading device, a knife device and a vibrator, characterized in that, in order to intensify the process of separating whey from milk-protein clot, equipped with a hollow cylinder with an elastic side surface connected to the compressed air supply and exhaust system, installed along the axis of the perforated cylinder at 0.3-0.35 of its height and rigidly connected to the roofs Coy case. FIG. /