RU2544953C1 - Mixtures preparation device - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: device includes a charging chamber 4 with a damper, a body 1 (with a suction 2 and a delivery nozzles, an operation wheel with interblade channels formed by blades 8, a base 7 and a covering discs 9, 10 having a smaller diameter than the blades) and vanes 11 attached to the body 1 side wall around the covering disc. The blades 8 are placed on either side of the base disc; the operation wheel on the opposite side from the covering disc is equipped with a shaft 6 with a spiral coiling 12 on the side surface, with an additional covering disc having a smaller diameter than the blades and with vanes placed on the body side surface around the additional covering disc; the charging chamber 4 with the damper is connected to the body 1 over the spiral coiling. In the process of mixture preparation, a liquid medium is supplied through the covering disc 9 hole into the interblade channels formed by the base 7, the covering discs 9 and blades 8. A powdery product from the charging chamber 4 is supplied into the operation wheel interblade channels formed by the base 7 and the additional covering disc 10. The liquid medium and the powdery product mixing begins at the outlet of the base disc 7. The process is intensified through the vanes braking action 11.

EFFECT: powdery product stable input without obstruction of conditions of entry into the liquid medium operation wheel, quality mixing of bulk material with liquid directly in blade wheel channels and in the process of further transporting within the body and the technological line without formation of residue and agglutinated lumps of the component being dissolved.

2 cl, 3 dwg

Description

The invention relates to devices for the preparation of mixtures and can be used in the preparation lines for liquid substitutes for whole milk, reconstituted milk, as well as in the preparation lines for saline and nutrient solutions.

A device for the production of liquid substitutes for whole milk, containing a reservoir, collector, suction and discharge pipelines, pump [1]. This device is designed to mix only liquid components.

There is also known a facility for the production of reconstituted milk, comprising a feed device for powdered milk powder, water, a cylindrical mixer with a shaft and blades, a recirculation unit for reconstituted milk [2]. The disadvantages of this device include the complexity of the design: the need to use a special mixer.

The closest in technical essence is a device containing a loading chamber with a shutter, a housing with a suction and discharge nozzles, an impeller with inter-bladed channels formed by the blades, the main and covering discs of a smaller diameter than the blades, and blades mounted on the side wall of the housing around the covering disk [3].

This device is designed to dissolve powdered products. However, for reliable stable introduction of the powdered product into the impeller, it is complicated by a hollow sleeve with grooves and windows on the covering disk, which together reduce the flow area of both components at the inlet and, ultimately, the reliability and performance of the device.

In the proposed device for preparing mixtures containing a loading chamber with a shutter, a housing with a suction and discharge nozzles, an impeller with inter-bladed channels formed by the blades, the main and covering disks of a smaller diameter than the blades, and blades mounted on the side wall of the housing around the covering disk , the blades are placed on both sides of the main disk. The impeller, on the opposite side of the covering disk, is equipped with a shaft with screw winding on the side surface, an additional covering disk of a smaller diameter than the blades, and blades placed on the side surface of the housing around the additional covering disk, and a loading chamber with a shutter is attached to the housing above the screw winding .

In addition, screw winding can be performed on the side surface of a hollow cylinder mounted on a shaft rotatably from a separate drive, and a pipeline with a valve is mounted connecting the suction pipe to the housing under the loading chamber with a shutter.

The placement of the blades on both sides of the main disk provides the formation of isolated from each other inter-blade channels on both sides of the main disk. Providing the impeller on the opposite side of the covering disc with an additional covering disc and a shaft with screw winding on its side surface and attaching a loading chamber with a shutter to the housing above the shaft with screw winding allows the powder component to enter the closed inter-blade channels of the impeller on one side of the main disk without restriction of the conditions for the flow of liquid medium into the impeller on the other side of the main disk.

The installation of the main disk of a smaller diameter than the blades, provides the combination of the inter-blade channels along the direction of motion for a liquid medium and a powdery product in the axial direction and mixing of these media as they move in the combined inter-blade channel. The installation of an additional covering disk of a smaller diameter than the blades turns the closed inter-blade channels into open channels, and fastening around the additional covering disk on the side walls of the blades body intensifies the process of mixing liquid medium with a powdery product in the open channel of the impeller and further in the housing.

A pipeline with a valve connecting the suction pipe to the housing below the loading chamber with a shutter provides flushing of the device and preparation of the mixture in recirculation mode.

The implementation of screw winding on the side surface of a hollow cylinder mounted on a shaft with the possibility of rotation from a separate drive provides independent control of the flow of the powder component, independent of the rotation of the impeller, i.e. expands the functionality of the mixer.

Thus, the set of essential features is new and ensures the achievement of a technical result: stable input of a powdery product without restricting the conditions of entry into the impeller of a liquid medium and high-quality mixing of bulk material with liquid directly in the channels of the impeller and during further transportation through the casing and the production line, without forming sludge and clumping lumps of the dissolved component.

The analysis of features that are distinctive from the prototype showed that no such signs were found in other technical solutions that perform the same function, therefore, the proposed device meets the criterion of "inventive step".

This device is illustrated in the drawing.

In FIG. 1 shows a section AA in FIG. 2. In FIG. 2 is a front view of a mixture preparation device. In FIG. 3 shows a top view of a device for preparing mixtures.

A device for preparing mixtures consists of a housing 1 with a suction 2 and discharge 3 nozzles and a loading chamber 4. In the housing 1 there is an impeller with inter-blade channels 5 and a shaft 6. The impeller contains a main disk 7 connected to the shaft 6, blades 8, located on both sides of the main disk 7, and two covering discs 9 and 10. The covering disc 9 is mounted on the suction pipe 2 side, and the additional covering disc 10 and the shaft 6 are mounted on the opposite side of the covering disc 9. Around the covering disc blades 11 are fixed on the side surface of the housing 9 and 10. The screw winding 12 is made on the side surface of the hollow cylinder mounted on the shaft 6 and can be rotated, for example, from a separate drive 15. The loading chamber 4 is connected to the housing above the screw winding 12. The damper 16 is installed in the loading chamber 4 above the point of its attachment to the housing 1. The suction pipe 2 is connected by a pipe 13 to the housing 1 below the loading chamber 4 with a shutter 16. A valve 14 is installed in the pipe 13.

The device operates as follows. During the preparation of the mixture in the production line in continuous mode, the valve 14 on the pipe 13 is closed. Rotating, for example, from an electric motor, the shaft 6 drives the impeller with the inter-blade channels 5. From the suction pipe 2, the fluid enters through the opening of the covering disk 9 into the inter-blade channels 5 formed by the main 7, covering 9 disks and blades 8. At the same time from the loading chamber 4 with the open shutter 16 under the influence of gravity, the powdery product falls on the screw winding 12. A hollow cylinder 12 rotating from a separate actuator 15 with a screw winding 12 moves the powdery product through to a ring hole formed by the side surface of a hollow cylinder with screw winding 12 and an additional covering disk 10 into the inter-blade channels of the impeller 5. The inter-blade channels 5 of the impeller for the powder product are formed by the main 7, additional covering 10 disks and blades 8. In the inter-blade channels 5 on both the sides of the main disk 7, the powdery product and the liquid medium move separately and do not mix. The mixing of the liquid medium and the powdery product begins at the outlet from the main disk 7. The mixing process is intensified by the expansion of the inter-blade channel and the inhibitory effect of the blades 11. Due to turbulent motion, the mixing of the components continues at the outlet of the flow from the housing 1 to the discharge pipe 3.

When the device is operating in a batch mixer, after dissolving the required volume of the powdered product, the shutter 16 is closed, the valve 14 is opened, and the separate drive 15 of the hollow cylinder with screw winding 12 is turned off. Due to the circulation in a closed loop "reservoir - device - reservoir" equalize the concentration of the dissolved powdery product in the entire initial volume of the liquid medium.

During the circulation flushing of the device, the valve 14 is opened. The damper 16 must be closed, a separate actuator 15 of the hollow cylinder can be turned off.

Using the proposed device for the preparation of mixtures will allow high-quality and high-performance mixing of the powdered product with a liquid medium directly during their movement inside the impeller and the housing. In this case, sludge and clumps of soluble component are not formed.

Information sources

1. A.S. 1706485 USSR IPC A01J 11/16. Mixer for the production of liquid substitutes for whole milk / A.A. Kozlova et al. / No. 4780382/13; stated on January 9, 90; Publ. 01/23/92; Bull. Number 3.

2. A.S. 1028307 USSR IPC A23C 9/00. Installation for the production of reconstituted milk / A.S. Strigo et al. / No. 3368211 / 28-13; Declared 10.12.81; Publ. 07/15/83; Bull. No. 26.

3. Patent for utility model No. 104022 of the Russian Federation IPC A23C 11/00; A01J 11/16. A device for the preparation of mixtures / V.G. Mokhnatkin, V.N. Shulyatiev, A.S. Filinkov et al. / №2010152132 / 10 stated on 12/20/2010; Publ. 05/10/2011; Bull. No. 13.

Claims (2)

1. A device for preparing mixtures containing a loading chamber with a shutter, a housing with a suction and discharge nozzles, an impeller with inter-blade channels formed by blades, a main and covering discs of a smaller diameter than the blades, and blades mounted on the side wall of the housing around the covering disc characterized in that the blades are placed on both sides of the main disk, the impeller on the opposite side of the covering disk is provided with a shaft with screw winding on the side surface, additional Tel'nykh covering disc of smaller diameter than the blades, and the blades placed on the lateral surface of the housing around the additional covering disc, a filling chamber with a flap attached to the body of the helical winding. 2. A device for preparing mixtures according to claim 1, characterized in that the screw winding is made on the side surface of a hollow cylinder mounted on a shaft with the possibility of rotation from a separate drive, and a pipeline with a valve is mounted, connecting the suction pipe to the housing under the loading chamber with a shutter .

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