SU1029980A1 - Extractor for solid body-liquid system - Google Patents

Description

The invention relates to a device for carrying out the processes, namely, extractors for a solid-liquid system. Known extractor containing extraction chamber, glass, evaporative condensation chamber, pyt5aiiiKy, condenser, mixing device, inlet and outlet nozzles C1J. The disadvantages of the known extractor are the periodicity of action, low productivity due to low intensity, unevenness in the content of residual extractant in the material due to periodicity, which affects the quality of the final product. The aim of the invention is an optimization — an extraction process by organizing continuous countercurrent phase motion. The goal is achieved by the fact that in an extractor that includes an evaporation-condensation chamber, an extraction chamber with a perforated bottom placed in a glass, the end of the glass is located below the end of the extraction chamber, the loading and unloading nozzle of the product, the mixing device, the latter is made in as a vertical perforated pipe with a perforated screw pipe installed on it, connected in the lower part with a pipe inside which the screw is mounted coaxially, while the screw pipe with It is united with the loading nozzle, and the discharge nozzle is installed in the upper part of the perforated pipe. In addition, the angle of inclination of the screw perforated pipe is 10-1 - more than the angle of repose of the material being processed. This allows for the continuous advancement of the material to carry out the extraction process at the expense of the liquid in the extraction chamber and the discharge pipe. Moreover, at the final stage of extraction, condensate is fed to the discharge pipe, which intensifies the extraction process. The drawing shows the extractor, a General view. The extractor consists of an extraction chamber 1, a cup 2, an evaporative condensation chamber.3 shirts 4 with nozzles, input 5 and output b of the heat carrier, a condenser 7 with nozzles input 8 and output 9 of the refrigerant, screw-perforated pipe 10 with a solid product loading 11 auger 12 connected to a vertical perforated nozzle 13, unloading nozzle 14, a nozzle 15 withdrawing a concentrated solution, an electric motor 16 and a coupling 17. A condensate 18 is located on the perforated nozzle 13. The extractor is equipped with an α-beater 19. The extractor works as follows. The raw solid material is continuously fed through the fitting 11 and the screw perforated pipe 10 into the extraction chamber 1. Liquid through the nozzle 10 enters the cup 2 through the perforated bottom of the extraction chamber 1. Excess liquid through the edge of the glass 2 is poured into the evaporation-condensation chamber 3, where evaporation occurs this fluid at the expense of giving: and in the shirt 4 through the pipes 5 and b of the coolant. The evaporated liquid condenses on the condenser 7, a coolant is supplied to the jacket of which through the pipes 8 and 9, and the condensate collector 18 enters the pipe 13. After switching on the electric motor 16, solid material is moved along the perforated screw pipe 10 and the perforated pipe 13 due to the gravitational silo and screw 12. The fluid through the perforations in the pipe 10 and the pipe 13 is constantly in contact with the solid material. Extraction of condensate is carried out through the condensate trap 18 to the pipe 1-3, in countercurrent to the solid material. A liquid solution with a high concentration through the nozzle 15 is led to crystallization, after which the liquid re-enters the extractor. Thus, the process is carried out with a closed cycle of water circulation. The extraction process is intensified due to the backflow of the liquid and solid phases: the condensate enters the final stage of extraction and comes into contact with the solid material at the maximum concentration gradient of the extracted material and the liquid. At the same time, the quality — homogeneity of the product — is improved due to the continuity of the extraction process, the productivity of the apparatus is improved, since the process is continuous, industrial waste is eliminated due to a closed turnover. At present, in industrial conditions for carrying out the extraction process large tanks (pools) of up to 60 m are used. The solid material is loaded into soft containers (bags) and the process of extraction of water-soluble salt takes place at various temperatures. The process is lengthy and time consuming.

The table shows the results of technical and economic indicators of the known and proposed apparatus.

With a capacity of 10.8 m, a filling degree of 0.3, and a bulk density of 0.6 t / m5, the productivity was 1.934 t / h, while on a known apparatus only 1.44. t / h, i.e. The manufacturer increases by 1.34 times, and the cost decreases by 8.6 rubles per ton of product.

Famous machine. . Pellet 0.5 X.0.2 1180-1200 1.3-1.6

The proposed apparatus

55-60 1.0-1.1-0.5 X 1.2

85

1.4

100

8.6

1,934

Claims (2)

1. EXTRACTOR FOR THE SOLID BODY SYSTEM - LIQUID, including an evaporator but condensation chamber, an extraction chamber with a perforated bottom placed in a glass, a fitting for loading and unloading the product, and a gel device, characterized in that, in order to intensify the extraction process by organizing continuous countercurrent movement, the mixing device is made in the form of a vertical perforated nozzle mounted on. a perforated screw pipe connected at the bottom with a nozzle inside which a screw is installed coaxially, while the screw pipe is connected to the loading nipple, and the discharge nipple is installed in the upper part of the perforated nipple. 2. Extractor by π. 1, because of the fact that the angle of inclination of a screw perforated pipe would be 10-15 ° greater than the angle naturally. | f whom the slope of the processed material is I * la, | C