RU2177835C2 - Grinder-mixer - Google Patents

Abstract

FIELD: grinding equipment. SUBSTANCE: grinder-mixer for food products has hopper, working chamber incorporating unit composed of stationary cutter and rotational knife mounted on drive shaft. Centrifugal pump impeller and rotational knife are arranged on single shaft. Impeller is positioned under rotational knife and communicated with circulation loop including pipeline system and locking and distributing fittings. Working chamber may be equipped with detachable food product flow swirler. EFFECT: wider operational capabilities and improved quality of ground product. 2 cl, 1 dwg

Description

 The invention relates to equipment for the food industry and can be used in the production of various food products by grinding, mixing, extracting, emulsifying and homogenizing substances of animal and vegetable origin.

 Known chopper-mixer for food production, containing a bowl with a lid, which has a loading nozzle with a disk lock and funnel. Under the bowl is fixed the drive of the cutting nozzle, which is a two-speed electric motor with an elongated shaft. The motor shaft enters the displacement through an opening in the bottom of the bowl. A cutting nozzle is installed on the shaft, consisting of two knives, which during rotation grind the product and mix it. The bowl rests on a frame that has height-adjustable supports (1).

 The disadvantage of this device is its complexity, as well as the inability to obtain products of a high degree of grinding and homogenization.

 The aim of the invention is to eliminate the disadvantages of the known device, expanding its technological capabilities, improving the quality of the resulting product.

 This goal is achieved in that the chopper-mixer, which includes a housing, a hopper, a working chamber, which includes a chopping unit connected to a motor drive, contains a circulation circuit that includes a centrifugal pump, a piping system and shut-off and distribution valves.

 Another feature of the invention is that the grinding unit is made in the form of rotary and stationary knives.

 Another feature of the invention is that the working part of the rotary knife is made in the form of grooves located along its periphery with cutting edges and a through wedge groove interacting with the inclined grooves of the stationary knife.

 Another feature of the invention is that the impeller of the pump is mounted under a rotary knife on a single shaft with it.

 Another feature of the invention is that the working chamber is equipped with a removable stream expander of the processed material.

 Another feature of the invention is that the engine is connected to the shaft of the working body using an intermediate gear, for example a belt drive.

 The invention is illustrated in the drawing, which shows a General view of the grinder-mixer in section.

 The chopper-mixer contains a housing 1 with supports 2, a motor 3 (for example, an electric motor), a hopper 4 with a removable flow expander 5, a working chamber 6, which includes a chopping unit connected to a drive from an electric motor 3, a launcher (not shown). The grinding unit is made in the form of a rotary 7 and stationary 8 knives. The working part of the rotary knife 7 is made in the form of inclined grooves located along its periphery with cutting edges and a through wedge groove interacting with the inclined grooves of the stationary knife 8.

 An impeller 10 is installed under the rotary knife 7 on the same drive shaft 9, which, together with the piping system and shut-off and distribution equipment, enters the circulation circuit. The piping system includes an outlet pipe 11 exiting the working chamber 6. This pipe 11 is connected to a tee 12, one end of which is connected through a ball valve 13 to a pipe 14 that enters the hopper 4, and through a valve 15 to a drain pipe 16 .

 The housing 1 of the grinder-mixer includes the upper 17 and lower 18 base plates. The working chamber 6, the bearing housing 19, the drive shaft 9, on which the rotary knife 7 is mounted, are fixed on the upper plate. The shaft 9 is equipped with a V-belt pulley. An engine 3 with a pulley and a tension roller are attached to the bottom plate 18.

 To transmit torque from the engine 3 to the grinding unit, a V-belt is used.

 The grinder-mixer is used for the production of various food products: soy milk, condensed milk, homogenized curd mass, butter with various fillings, processed cheese, mayonnaise, vegetable and fruit pastes, homogenized baby food products, etc.

 In the production of soy milk, the device performs the functions of a dispersant, extractor and emulsifier.

 Condensed milk is obtained in a vacuum-free way from dried, whole or skim milk, sugar, water and other additives. In this case, the apparatus acts as a dispersant and homogenizer. The device performs the same functions upon receipt of a curd of homogenized mass, processed cheese, mayonnaise, vegetable and fruit purees, etc.

 In the manufacture of soy milk, soaked soy is loaded into the hopper and poured with water in a ratio of 1: 10. Turn on the drive. Grinding occurs. The wedge groove cuts the fibers, and the edges of the inclined grooves produce finer fibers. At the same time, protein is washed out from the grinding. In this case, the circulation valve 13 is open and the drain valve 15 is closed, as a result of which the material being processed circulates in the circulation circuit. A protein sample is taken with a refractometer. When the protein content meets the requirements, the valve 15 is opened and the product obtained is poured for further processing - separating milk from okara, making cheese, etc.

To make mayonnaise, the cooked milk is poured into hopper 4 at a temperature of approx. 90 ^o C. Add a thickener - a modification of starch. Within about 5 minutes of circulation, the thickener is activated. In the process of mixing and circulation add vegetable oil, mustard, vinegar. Due to the action of cavitation processes, a homogeneous dense mass is obtained.

 To prepare mashed potatoes, cottage cheese, fruit paste, the initial product is simply crushed without circulation.

 For the preparation of condensed milk, milk powder, sugar, water are taken. In a vacuum-free way, a finely dispersed mixture is obtained by mixing.

 The device allows you to repeatedly pass the processed material through the grinding unit, achieving a high degree of dispersion and homogenization.

Sources of information
1. V. D. Kharitonov, Yu. A. Brodsky, G.V. Budrik, V. B. Bogdanovsky, E. S. Genin. Shredders-mixers for the food industry. J. "Food Industry", 1998, 12, p. 32 (prototype).

Claims (2)

 1. A chopper-mixer for food products, characterized in that it contains a hopper, a working chamber, which includes a node containing a stationary knife and a rotary knife mounted on the drive shaft, while a centrifugal pump impeller is installed under the rotary knife on the shaft included in the circulation circuit, with a piping system and valves.  2. The chopper-mixer according to claim 1, characterized in that the working chamber is equipped with a removable flow expander of the processed product.