SU962308A1 - Apparatus for predefecation of diffusion juice - Google Patents

Description

The device relates to the sugar industry, namely, apparatus for pre-defecation of juice.

The closest to the proposed technical essence and the achieved effect is a device for preliminary defecation of diffusion juice, containing a vertical tank with a conical bottom, divided into sections by cone-shaped plates with central nozzles, located inside the container, a shaft with turbines fixed on it, located in each section, and nozzles for introducing diffusion juice, carbon residue, milk of lime and removal of processed juice l.

The known device does not allow for the optimal technological mode of operation and for ensuring the quality of the diffusion juice with a change in the pace of operation of the sugar factory, the presence of moving regulators inside the device complicates its design and makes repair work difficult.

The purpose of the invention is to improve the quality of the juice and simplify the design of the device.

The goal is achieved by that; that in the device for pre-defecation of diffusion juice, containing a vertical tank with a conical bottom, divided into sections cone-shaped plates with central nozzles, a shaft placed inside it with turbines mounted on it, located in each

10 sections, and nozzles for injecting diffusion juice, saturation sediment, milk of lime and removal of treated juice, each turbine has two rows of vanes separated

15 solid disc.

The container on the outside is provided with pipelines for the passage of juice from section to section, with elements installed on each pipeline to control the flow of juice.

FIG. 1 shows a device for pre-defecation of diffusion juice, general view; in FIG. 2, section A-A in FIG. one; in fig. 3 25 impeller, general view.

The device for pre-defecation of diffusion juice contains a vertical tank 1 with a conical bottom 2, divided into sections 3 with 30 conical plates 4 with cent; ) with the branch pipes 5, located half the tank of the tank 1, the shaft 6 with the turbines 7 fixed on it, located in each section, and the branch pipes 81 .0. Each impeller 7 has two rows of blades 11 and 12, separated by a continuous disk and. from the outside, the tank 1 is provided with pipes 14 for the passage of juice from section to section, with elements 15 for controlling the flow of juice on each pipeline.

The device works as follows.

Before starting the device, the elements 15 are opened to regulate the flow of juice. After the required number of revolutions of the shaft 6 with the turbines 7 (the direction of rotation is indicated by the arrow), diffusion juice is supplied through the pipe 8. After filling the container 1 with diffusion juice, one of the pipes 9 is fed with a saturation sediment and through pipe 10 is a calcareous milk

A part of the most alkaline juice of the upper section through the nozzles 5 is sucked in by the upper row of the vanes 11 of the impeller 7 and is thrown into the section below it. In this section, the most alkaline juice coming from the upper section is mixed using the lower row of the blades 12 of the impeller 7 with the less alkaline juice flowing through the outer pipe 14, from the section below, etc. The movement of juice in the device is shown by arrows.

If the alkalinity, for example, in the second section, exceeds the specified value, the element 15 for controlling the flow located on the outer pipe 14 for the passage of juice from section to section is covered. Thus, a backpressure is created to the suction by the upper row of blades 11 of the impeller 7 of more alkaline juice from the third section to the second. When the element 15 is completely closed, a counter-current is created through the suction of the pipe 5 from the bottom up and the alkalinity of the juice in this section decreases rapidly, and when the element 15 is open, the juice through the pipe 5 goes from top to bottom. In this way, it is possible to regulate the alkalinity of the juice in each section in large intervals.

During operation of the device, the first p of the blades are 11 rounds of 7 located

in each section, acts as a pump, sucks the diffusion juice with higher alkalinity from the upper section and delivers it to the downstream section. At the same time, the second row of blades 12 turbines 7 serves for intensive mixing of the juice in each section. The partitions 16 prevent rotation of the juice together with the turbines.

The juice thus treated is withdrawn from the device through patru-side 10.

Sand deposited in the device with lime milk is lowered onto the conical bottom 2, where it is exhausted by chains 17 hung on the blades 18 and periodically discharged through valve 19.

The advantage of the proposed device is the progressive increase in the pH of the juice, which creates optimal conditions for the coagulation of various colloids of juice. At the same time, larger flakes of coagulum are obtained, and the filtration-fermentation properties of the juice are improved.

Claims (2)

1. A device for pre-defecation of diffusion juice containing. a vertical container with a conical bottom, divided into sections by cone-shaped plates. In order to improve the quality of the juice and simplify the design, each turbine has two rows of vanes,. separated by a solid disk. 2. The device according to Claim 1, about tl and which means that from the outside, the tank is equipped with pipelines for the passage of juice from section to section, with elements for controlling the flow of juice installed on each pipeline. Sources of information taken into account in the examination 1. USSR author's certificate 536229, cl. C 13 0-3 / 02, 1977.