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Product Details

Product Introduction

The inverted-cone extraction tank is primarily used in process operations such as atmospheric- and low-pressure water decoction, warm‑infusion, hot reflux, forced circulation, percolation, aromatic oil extraction, and organic solvent recovery for traditional Chinese medicine, plant, and animal materials. The inverted‑cone design greatly facilitates solvent circulation; as the extraction solvent flows upward from the bottom, a specially designed water‑separating plate and screen at the tank base ensure uniform upward movement. Moreover, the gradual reduction in cross‑sectional area from the bottom to the top effectively prevents short‑circuiting of the solvent flow.

Accessory components

The inverted-cone extraction tank can be equipped with a condenser, cooler, oil–water separator, foam trap, filter, and medicinal‑liquid pump. The oil–water separator is specifically designed for alcohol‑based extractions to recover oil. Depending on the customer’s process requirements, the extraction tank can be fitted with an agitator system; an internal mechanical stirrer is installed to induce motion of the feedstock during extraction, accelerating mixing and effectively preventing low‑density extracts from floating on the surface of the solvent and resulting in inadequate wetting. This enhances extraction efficiency and shortens the extraction time.

Working principle

The entire extraction process in the extraction vessel is carried out within a closed, recirculating system, allowing for both atmospheric-pressure and low-pressure extraction. The inner vessel, designed as a pressure vessel, can accommodate either water‑based or alcohol‑based extractions, as well as oil‑extraction or other applications. Specific process parameters are determined by the customer based on the pharmacological properties of the target compound.
1. Water extraction: Water and the traditional Chinese medicine are loaded into the extraction vessel according to a specified process ratio. The jacketed heating source is then activated; once the contents in the vessel reach boiling, the heat supply is reduced to maintain gentle simmering. The extraction is sustained for an appropriate duration based on the pharmacological extraction protocol, ensuring that the active constituents of the herbal material or medicinal slices are thoroughly dissolved in water.
2. Alcohol Extraction: First, the medicinal materials and alcohol are added to the vessel according to a specified process ratio, and the system is sealed. A jacketed heating source is applied; once the desired temperature inside the vessel is reached, the heat supply is reduced to maintain that temperature for a set period, ensuring that the active constituents of the traditional Chinese medicine or herbal slices are fully dissolved into the alcohol. The vaporized alcohol is condensed in a condenser, converted back into liquid form, and returned to the storage tank for subsequent distillation and purification. To enhance efficiency, a pump can be used for forced circulation, drawing the extract from the bottom of the vessel and returning it to the top via an inlet.
3. Oil Extraction: First, the traditional Chinese medicine containing volatile oils and water are added to the extraction vessel according to a specified process ratio. Steam is introduced into the jacketed heating system; once the desired volatilization temperature is reached, the steam flow rate is adjusted and the internal temperature is maintained for a prescribed duration. The evaporated aromatic oil is then cooled via a cooling system, and the cooled herbal extract is separated using an oil–water separator.

Product Applications

1. Biopharmaceuticals: extraction, percolation, dissolution, and purification of active ingredients from traditional Chinese medicine;

2. Food: purification of hops and vegetable/animal oils, extraction of plant pigments, extraction of bioactive plant compounds, and extraction of flavors and fragrances;

3. Cosmetics: extraction, purification, and isolation of cosmetic raw materials;
4. Chemical Industry: recovery of reaction feedstocks, dissolution of organic solvents, and purification.

Technical Specifications

Specification Model	TQ-D-0.5	TQ-D-1	TQ-D-2	TQ-D-3	TQ-D-6	TQ-D-8
Volume (L)	750	1200	2300	3400	6400	8500
Design pressure inside the vessel (MPa)	0.09	0.09	0.09	0.09	0.09	0.09
Jacket Design Pressure (MPa)	0.3	0.3	0.3	0.3	0.3	0.3
Compressed air pressure (MPa)	0.6-0.7	0.6-0.7	0.6-0.7	0.6-0.7	0.6-0.7	0.6-0.7
Feed port diameter (mm)	150	200	200	300	350	400
Heating area (m²)	2.0	3.2	5.3	6.8	8.5	10.5
Condensing area (m²)	5	6	8	10	12	16
Cooling area (m²)	0.5	1	1	1	2	2
Slag discharge door diameter (mm)	800	1000	1200	1500	1700	1900
Energy consumption (kg/h)	145	195	258	300	552	728

Friendly reminder:

The technical specifications of the inverted-cone extraction tanks listed in the table are standard values (for reference only); we can also develop customized solutions tailored to the customer’s specific product and material requirements.

Keywords

Inverted conical extraction tank

Inverted cone extraction tank

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peter@maikejx.cn