Extraction apparatus capable of enhancing liquid-liquid separation effect

Abstract

The invention discloses an extraction apparatus capable of enhancing a liquid-liquid separation effect. The extraction apparatus comprises an extraction barrel (25), a light component separation barrel (26) and a heavy component separation barrel (27), the light component separation barrel (26) is mounted above the extraction barrel (25), the heavy component separation barrel (27) is mounted below the extraction barrel (25), and accordingly, the extraction apparatus is formed integrally. The extraction device is designed according to the maximum load, meets production conditions under various loads lower than the maximum load, and is wide in production load adjustment range, lowest in backmixing degree, good in separation effect and simple to operate and control, a micro-flow direction of liquid is perpendicular to a separation direction of light liquid and heavy liquid, and manual adjustment is not required during changing in production loads.

Description

technical field [0001] The invention belongs to the field of separation equipment manufacturing, and in particular relates to an extraction device for enhancing the effect of liquid-liquid separation. Background technique [0002] Extraction is an important chemical operation unit, and extraction tower is one of the commonly used extraction equipment. The liquid-liquid mixing needs to be strengthened in the extraction section of the extraction tower, while the liquid-liquid separation needs to be strengthened at the top and bottom of the extraction tower. Measures to strengthen mixing usually use means such as packing and trays, while measures to strengthen liquid-liquid separation usually use expanding the diameter of the top and bottom of the tower to reduce the axial linear velocity of the fluid. [0003] Traditional extraction devices such as figure 1 shown. figure 1 In the process, the light component enters the extraction tower from the lower part of the extract...

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Problems solved by technology

[0004] figure 1 The traditional extraction device shown has the following disadvantages: 1. In the light and heavy component separation section, the axial macroscopic flow direction of the fluid is opposite to the flow direction of the heavy and light components, and a certain degree of back-mixing is formed in the axial direction, which reduces the light and heavy components. Separation effect of heavy components; 2. The flow rate of the heavy liquid outlet needs to be strictly controlled; if the flow control of the heavy liquid outlet is not good, such as the flow rate is too large, the light liquid cannot reach the height of the light liquid outlet, and the separation requirements cannot be achieved; such as heavy liquid If the flow rate is too small, the heavy liquid will enter the extraction section; 3. The outlet flow rate of the light liquid should also be strictly designed. If the flow rate of the light liquid outlet is too small, it will easily cause the separator to be filled with the mixture and fail to meet the separation requirements; 4. In actual production When the production load changes, it is necessary to adjust the flow of light and heavy liquid outlets, which is difficult to adjust

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