Solvent scavenger for a desolventizer toaster using a vapor recovery system

A technology for evaporating off machines and solvents, which can be used in dryers, lighting and heating equipment, drying, etc., and can solve problems such as waste.

Inactive Publication Date: 2014-03-19
CROWN IRON WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this residual solvent is not considered to affect the quality of the meal, it is still wasted

Method used

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  • Solvent scavenger for a desolventizer toaster using a vapor recovery system
  • Solvent scavenger for a desolventizer toaster using a vapor recovery system

Examples

Experimental program
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Embodiment Construction

[0021] figure 1 and figure 2 An evaporator unit 10 is shown having many of the components shown in the aforementioned '250 patent. figure 1 and figure 2 The illustrated evaporator unit 10 includes a housing or enclosure 16 of generally cylindrical cross-section in which removal of solvent from the vegetable meal takes place. The figure shows meal stacks or layers 40 on various stages throughout the housing 16 for solvent removal.

[0022] The stage for solvent removal includes a plurality of vapor recovery (VR) trays 37a and 37b, 49a-49e and tray 59, collectively referred to as vapor recovery tray sets 37, 49 and 59, respectively. The sets of trays 37 , 49 and 59 are all used to support the stack 40 of multiple layers of meal during passage of the meal through the unit 10 .

[0023] The tray groups 37, 49 and 59 and the ply 90 are all hollow. Steam flows into and through the sets of trays 37, 49 and 59 and the deck 90 to heat the meal heap 40 they hold, thereby evaporat...

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PUM

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Abstract

An improved desolventizer-toaster (DT) unit is used for removing traces of a hydrocarbon solvent from a mass of vegetable particles of oil. A conventional DT unit has within a housing, a set of solvent removal trays and a main ejector transporting solvent vapor and steam from below the tray set to between a pair of the trays in the set. The improved DT unit has a further scavenger tray between an inlet of the main ejector and the housing floor. A scavenger ejector transports solvent vapor from between the scavenger tray and the housing floor before it exits from the unit, to the space between the tray set and the scavenger tray.

Description

[0001] Cross References to Related Documents [0002] This is an international application filed under 35 U.S.C. § 363 and required under 35 U.S.C. § 119(e)(1) to be filed on April 26, 2011 under 35 U.S.C. § 111(b) Priority of Provisional Application No. 61 / 479,096. Background technique [0003] Extraction of vegetable oils from oilseeds or oil pits such as soybean, cottonseed, mustard seed and rapeseed is a very important industrial production process. Typically, the process is carried out continuously on very large plants, where a single unit typically extracts many tons of vegetable oil a day. These oils are very valuable and are used in many food and non-food applications. The pellets remaining after removal of the vegetable oil are also valuable and can be used as human food or animal feed. [0004] One type of extraction system first processes the oily portion of the oilseed to form a large number of oily flakes or pellets (meal). The meal is then transferred to a ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B17/00
CPCF26B17/003
Inventor G·E·安德森B·W·弗洛恩
Owner CROWN IRON WORKS
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