RU-2861306-C1 - METHOD FOR CONTROLLING LINE FOR OBTAINING PROTEIN FEED ADDITIVE FROM VEGETATIVE MASS OF PROTEIN-CONTAINING GREEN PLANTS

Abstract

FIELD: food industry. SUBSTANCE: invention relates to the automation of the process of obtaining a protein feed additive from alfalfa vegetative mass. The method for obtaining a protein feed additive from alfalfa vegetative mass is characterised in that the pre-crushed alfalfa mass is fed into a hydrolyser with a heating jacket and a stirrer, then water, a 0.1 M Na-acetate buffer and the enzyme preparation Celloviridin G20x are dosed using dosing valves, and the mixture is fermented with continuous stirring. A 0.1-1% sodium hydroxide solution is added to the resulting fermented mixture, and protein extraction is carried out. The resulting mixture is fed into a screw press, where pressing takes place to obtain grass pulp and green juice. The grass pulp is sent along the line for further processing, and the green juice is sent to a filter to separate fibrous impurities, which are mixed with the grass pulp, and the green juice after filtration is fed into a container with a stirrer for protein precipitation, where a 1-10% acetic acid solution is simultaneously introduced using a dosing valve, and stirred, followed by holding for 20 minutes. The precipitated mixture from the container with the stirrer is sent to a fine cleaning filter, with the resulting filtrate being discharged along the line for technological needs, and the resulting precipitate is fed into a loosener. Into a vibratory dryer, where drying is carried out with superheated steam at a temperature of 90-100°C, a pressure of 0.02-0.03 MPa and a speed of 1.0-2.0 m/s in a vibrofluidised bed until a moisture content of 8-10% in the dry protein feed additive. Then the dry protein feed additive is fed into a crusher and crushed to 0.8-1.0 mm to obtain the finished product. EFFECT: possibility to improve the quality of the finished product, increase the yield of the finished product, reduce the specific heat energy costs and the cost of the finished product. 1 cl, 1 dwg, 1 ex

Inventors

• Drannikov Aleksei Viktorovich
• OSTRIKOV ALEKSANDR NIKOLAEVICH
• SHEVTSOV ALEKSANDR ANATOLEVICH
• DERKANOSOVA ANNA ALEKSANDROVNA
• Sapelkin Ivan Andreevich

Dates

Publication Date

20260504

Application Date

20250506

Claims (1)

1. A method for producing a protein feed additive from the vegetative mass of alfalfa, characterized in that alfalfa mass pre-crushed to a size of 0.4-0.8 mm is fed into a hydrolyzer with a heating jacket and a stirrer, then water in an amount of 300% of the alfalfa mass, Na-acetate buffer with a concentration of 0.1 M to obtain a pH of 4.5-5.5 and the enzyme preparation Celloviridin G20x in an amount of 0.01-0.05% of the alfalfa mass are dosed using dosing taps, and the mixture is fermented with continuous stirring for 5-6 hours at a temperature of 45-50 ° C, wherein the rotation frequency of the stirrer in the hydrolyzer is 1.5 s -1 , after which a 0.1-1% sodium hydroxide solution is added to the resulting fermented mixture using a dosing tap to a pH of 9.0, and protein extraction at a temperature of 45-50 ° C, then the resulting mixture is fed into a screw press, where squeezing occurs to obtain grass pulp and green juice, the grass pulp is sent along the line for further processing, and the green juice is sent to a filter for separation from fibrous impurities, which are mixed with the grass pulp, and the green juice after filtration is fed into a container with a stirrer for protein sedimentation, where at the same time, using a dosing tap, a 1-10% solution of acetic acid is introduced to obtain a pH of 3.0-5.0 in the mixture and stirred for 10-20 minutes, followed by holding for 20 minutes, and the rotation frequency of the stirrer is 2.5 s -1 , the precipitated mixture from the container with a stirrer is sent to a filter for fine cleaning, with the resulting filtrate being removed along the line for technological needs, and the resulting sediment is fed to a loosener, then to a vibration dryer, where they are carried out drying with superheated steam at a temperature of 90-100°C, a pressure of 0.02...0.03 MPa and a speed of 1.0...2.0 m/s in a vibrating fluidized bed to a moisture content of 8-10% in the dry protein feed additive, then the dry protein feed additive is fed into a crusher and crushed to 0.8-1.0 mm to obtain the finished product.

Description

The invention relates to the automation of technological processes and can be used in the automation of the process of obtaining a protein feed additive from the vegetative mass of protein-containing green plants. The closest in technical essence and achieved effect is [Patent No. 2735808 RF, A23K 10/30, A23J 1/14, A23N 17/00 Method for obtaining a protein feed additive from the vegetative mass of protein-containing green plants and a line for its implementation [Text] / Drannikov Aleksey Viktorovich, Derkanosova Anna Aleksandrovna, Orinicheva Anastasia Andreevna, Korotaeva Alisa Aleksandrovna, Sapelkin Ivan Andreevich (Russia) - No. 2019132018, declared 10.10.2019; published 09.11.2020, bulletin. № 31], which involves feeding a crushed mass of protein-containing green plants into a hydrolyzer with a heating jacket and a stirrer, followed by its fermentation with water, Na-acetate buffer, the enzyme preparation Celloviridin G20x and protein extraction with a solution of sodium hydroxide, and then squeezing the resulting mixture in a screw press to form green juice, followed by its filtration, precipitation of protein from it in a container with a stirrer, which is then filtered on a fine filter, loosened and dried in a vibration dryer with superheated steam at reduced pressure, achieved in a condenser with a barometric tube and crushed to obtain the finished product. However, the known invention has the following disadvantages: - does not ensure operational control of process parameters at the stages of the process of obtaining a protein feed additive from the vegetative mass of protein-containing green plants based on information received directly from the control object under conditions of random disturbances both from changes in the initial properties of the raw materials and from possible technological failures of the equipment, which, in turn, does not allow obtaining a high-quality finished product. - rational operating modes of the equipment are not established depending on the loads applied to it, which in turn does not ensure a reduction in the cost of the finished product. - the accuracy and reliability of control is not ensured due to the imposed bilateral restrictions on the controlled parameters and, as a consequence, the conditions for increasing the output of the finished product and saving heat and energy costs are not created. The technical objective of the invention is to improve the quality of the finished product, the accuracy and reliability of control, increase the yield of the finished product, reduce specific heat and energy costs and the cost of the finished product. The stated objective is achieved by the fact that in the method for controlling the line for obtaining a protein feed additive from the vegetative mass of protein-containing green plants, which involves feeding the crushed mass of protein-containing green plants into a hydrolyzer with a heating jacket and a stirrer, followed by fermentation with water, Na-acetate buffer, the enzyme preparation Celloviridin G20x and protein extraction with a sodium hydroxide solution, and then squeezing the resulting mixture in a screw press to form green juice, followed by its filtration, precipitation of protein from it in a container with a stirrer, which is then filtered on a fine filter, loosened and dried in a vibration dryer with superheated steam achieved in a condenser with a barometric tube, and crushed to obtain a finished product, what is new is that, based on the current value of the flow rate of crushed mass of protein-containing green plants into the hydrolyzer, the required flow rate of water, Na-acetate buffer with by adjusting the acidity of the mixture in the hydrolyzer, then the required flow rate of the enzyme preparation Celloviridin G20x is set and the fermentation process is carried out, after which the required flow rate of the sodium hydroxide solution is set in the hydrolyzer to carry out the process of protein extraction from the resulting fermented mixture, and the required temperature in the hydrolyzer is maintained by changing the flow rate of condensate formed as a result of condensation of the spent superheated steam in the condenser and having a temperature of 55-60 ° C, in its heating jacket, and according to the current value of the total flow rate of all components sent to the hydrolyzer, the required rotation frequency of the mixer in the hydrolyzer and the productivity of the screw press are set by changing the rotation frequency of the screw using the actuator, and then, when filtering the resulting green juice in the filter, when the pressure drop on the filter partition reaches 0.2 MPa, the flow of green juice is switched to the reserve filter using the actuator, and then, according to the current value of the flow rate of the filtered green juice, the required flow rate is set reagent into a container with a mixer for protein coagulation and the required rotation speed of its mixer, while the pe