RU2268611C2 - Method and apparatus for processing of beet pulp - Google Patents

Abstract

FIELD: food-processing industry, in particular, feed production, preferably processing of beet pulp.

SUBSTANCE: method involves squeezing beet in screw press until moisture content of 30-40% is obtained; transporting beet pulp by means of loading conveyor and vehicle for silage without usage of heat-carrier, with squeezed liquid being discharged through openings in screw and openings in die into reservoirs for coagulation; providing coagulation process for three days in coagulation reservoirs by adding 1%-solution of low-molecular organic acid concentrate, said process being accompanied with deposition of protein sediment; preparing low-molecular organic acid concentrate in mixer by pouring 30-35% of formic acid, 25-30% of acetic acid, 15-20% of propionic acid and 5-6% of other acids; directing deposited protein sediment for drying to produce plant-protein vitamin concentrate; discharging clarified liquid into vessel and using it as additive to be introduced into animal's ration or directing said liquid for feed yeast production. Apparatus has feeding device, charging hopper, screw press equipped with die and openings, and drier. Apparatus is further provided with charging conveyor and vehicle for transporting squeezed pulp for silage, mixer for preparing concentrate from low-molecular organic acids, and coagulation reservoirs. Gate is located at screw press outlet end for distribution of squeezed beet pulp mass flow.

EFFECT: provision for waste-free processing of beet pulp.

3 cl, 1 dwg

Description

The invention relates to the field of feed processing, mainly to the processing of beet pulp.

The closest analogue to the invention is the "Technological device for drying feed and dryer" made of a feed feeder, dryer, conveyor, fuel system and cyclone, as well as equipped with a screw press and dryer. The dryer consists of perforated cascade conveyors separated by partitions for the sequential flow of coolant pumped by the fan from the base of the boiler pipe. A pipeline is provided for supplying exhaust gases to a boiler house operating on gaseous fuel. In the screw press, holes are provided in the die for draining the squeezed liquid and holes in the screw itself (RU 2179810 C2 02.27.2002).

However, this device and dryer do not provide waste-free technology.

The objective of the invention is the implementation of waste-free technology, reducing energy consumption for the entire drying cycle and improving technical and economic efficiency.

The essence of the invention is the provision of energy saving and wastelessness of the drying process of beet pulp due to the processing of squeezed liquid. The proposed installation for processing beet pulp consists of a screw press, a container for collecting squeezed liquid, a mixer, a pipeline, a container for collecting clarified liquid, drying equipment.

The device and principle of operation of the installation for processing beet pulp will be clear from the following description and the attached drawing.

The drawing shows a plant for processing beet pulp, which consists of series-connected technological parts. The screw press 1 with holes in the matrix and the screw itself is designed to squeeze beet pulp to a moisture content of 30-40%. To collect the liquid squeezed out in the screw press 1, a pipeline 2 and coagulation tanks 3 are designed. A valve 4 is provided at the outlet of the screw press 1 to separate the squeezed pulp stream. The loading conveyor 5 serves to load the pulp into the vehicle 6, which is designed to transport the pulp to ground concrete silo trench 7 and for feeding animals. The mixer 8 is designed for the preparation of a concentrate of low molecular weight acids. Capacity 9 serves to collect clarified liquid or filtrate juice. For drying and packing vegetable-protein vitamin concentrate, drying equipment 10 is provided (see analogue).

A method of processing beet pulp at the installation is as follows. In the screw press 1, the beet pulp is pressed. In this case, the separation of squeezed beet pulp and squeezed liquid occurs. The squeezed liquid through the holes in the matrix and the holes in the screw itself passes through line 2 to the coagulation tank 3, where when a 1% solution of the concentrate of low molecular weight organic acids is added, the coagulation process takes place for three days and a protein precipitate falls out. A low molecular weight organic acid concentrate is prepared in mixer 8. In mixer 8, 30-35% formic acid, 25-30% acetic acid, 15-20% propionic and 5-6% other organic acids are poured. The precipitated protein precipitate is sent for drying and packaging in the drying equipment 10, resulting in a vegetable-protein vitamin concentrate. The clarified liquid is poured into a container 9 and used as an additive in the diet of animals or sent to the production of fodder yeast.

In the absence of drying equipment and coolant, pressed beet pulp is subjected to silage. To do this, the valve 4 directs the flow of the squeezed mass into the loading conveyor 5 and then into the vehicle 6 for delivery to the ground concrete silo trench 7, where anaerobic conditions are created by tamping the mass for its further siloing. Vehicle 6 can be used to deliver mass for feeding animals.

Such a scheme reduces the energy consumption for drying and processing pulp by 90-95% and allows for waste-free production. All this allows to improve technical and economic efficiency, significantly reduce energy consumption and prevent the loss of nutrients during storage of beet pulp.

The source of information

RU 2179810. Technological device for drying feed and dryer. Ponomarev A.F., Lyubin V.N., Bulavin S.A., Kazakov K.V. 7 A 23 K 1/00; A 01 F 25/00. Publ. Bull. Inventions and utility models. - February 27, 2002. - No. 6.

Claims (2)

1. A method of processing beet pulp with preliminary extraction, characterized in that after pressing in a screw press to a moisture content of 30-40%, the pulp is sent to silage in the absence of a coolant by means of a loading conveyor and a vehicle, and the pressed liquid through holes in the auger and holes in the matrix enters the coagulation tank, where when a 1% solution of a concentrate of low molecular weight organic acids is added over a period of three days, a coagulation process occurs with the precipitation of a protein precipitate, while a low molecular weight organic acid concentrate is prepared in a mixer by pouring 30-35% formic acid, 25-30% acetic acid, 15-20% propionic and 5-6% other organic acids into it, the precipitated protein precipitate is sent for drying, as a result of which vegetable-protein vitamin concentrate, and clarified liquid is poured into a container and used as an additive in the diet of animals or sent to the production of fodder yeast. 2. Installation for processing beet pulp, including a feeding feeder, a hopper having openings a screw press with a matrix and a dryer, characterized in that it is equipped with a loading conveyor and a vehicle for sending the squeezed pulp to silage, as well as a mixer for preparing concentrate from low molecular weight organic acids, and containers for coagulation, while at the outlet of the screw press a valve is installed to distribute the flow of the squeezed pulp mass.