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Separation method of middle-layer resin liquid

A separation method and fat liquid technology, applied in the field of rosin production, can solve the problems of low grade rosin products, pollution of the working environment, and small processing capacity, and achieve the effects of low production cost, small environmental pollution, and large processing capacity

Active Publication Date: 2012-11-14
YUNNAN MEISENYUAN FOREST PRODS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment of the middle layer fat liquid is to dissolve the middle layer fat liquid and then add turpentine and let it stand for clarification, then discharge the lower layer, but still contain rosin and turpentine silt impurities, and the upper layer fat liquid is obtained by physical distillation method to obtain rosin and turpentine products. This method still follows some old methods and old techniques in the production of rosin. Using this method to process the middle layer of fat liquid has low yield, small processing capacity, many processes, long time, serious pollution of the working environment, and the produced rosin products Low grade, high energy consumption

Method used

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  • Separation method of middle-layer resin liquid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Throw one ton of the middle layer fat liquid, the middle layer fat liquid contains 25% water, contains 10% solid residue, adds 200KG of turpentine, and heats to 70°C while stirring at 60 rpm. The flow rate of the first pump into the decanter centrifuge is controlled at 600-650 kg / hour to realize the coarse separation of fat liquid and solid suspended matter; the main motor speed of the decanter centrifuge is 3000 rpm, and the auxiliary motor speed is 1400 rpm .

[0031] The fat liquid after coarse separation is heated to 80°C, and is pumped into the feed port of the disc centrifuge by the second pump for three-phase fine separation of fat liquid, water and fine slag, and the flow rate is controlled at 500-550 kg / Hours, the speed of the disc separator is 6500 rpm, the separated fat liquid is 807.5KG, the water content is 0.2%, and the actual recovery rate is as high as 94.8%.

Embodiment 2

[0033] Throw one ton of middle layer fat liquid, the middle layer fat liquid contains 24.8% water, 9.2% solid residue, add 250KG turpentine, heat to 70°C while stirring at 65 rpm, the flow rate pumped into the decanter centrifuge by the first pump The control is at 800-850 kg / h to realize the coarse separation of fat liquid and suspended solids; the main engine speed of the decanter centrifuge is 3600 rpm, and the auxiliary motor speed is 1500 rpm.

[0034] The fat liquid after coarse separation is heated to 80°C, and is pumped into the feed port of the disc centrifuge by the second pump, and the three-phase fine separation of fat liquid, water and fine slag is carried out, and the flow rate is controlled at 600-650 kg / hour, the speed of disc separator is 7000 rpm, and after separation, 890KG of net fat liquid is obtained, with a water content of 0.15%, and the actual recovery rate is 96.8%.

Embodiment 3

[0036] Throw one ton of middle layer fat liquid, the middle layer fat liquid contains 24.0% water, 9.0% solid residue, add 250KG turpentine, heat to 70°C while stirring at 70 rpm, the flow rate pumped into the decanter centrifuge by the first pump Control at 950-1000 kg / h to realize coarse separation of fat liquid and suspended solids; the main engine speed of the decanter centrifuge is 400 rpm, and the auxiliary motor speed is 2000 rpm.

[0037] The fat liquid after coarse separation is heated to 80°C, and is pumped into the feed port of the disc centrifuge by the second pump, and the three-phase fine separation of fat liquid, water and fine slag is carried out, and the flow rate is controlled at 750-800 kg / Hours, the speed of the disk separator is 7500 rpm, and after separation, 900KG of net fat liquid is obtained, with a water content of 0.10%, and the actual recovery rate is 97.7%.

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Abstract

The invention discloses a separation method of middle-layer resin liquid. Liquid-solid-liquid three-phase separation is carried out on complete middle-layer resin liquid through the steps of adding oil of turpentine in middle-layer resin liquid and heating to expand specific gravity difference among raw materials of the middle-layer resin liquid on the basis of centrifugal sedimentation rotation speed difference of a horizontal screw centrifugal machine, the separation principle of a screw conveyor and the centrifugation principle of a disk centrifuge. The separation method has the advantagesof short process flow, large processing capacity, production continuity, low energy consumption, low production cost and little environment pollution; moreover, the level of the separated clean resinliquid is high.

Description

technical field [0001] The invention relates to rosin production technology, in particular to a method for separating middle layer fat liquid in rosin production. Background technique [0002] my country is a large rosin producing country in the world. In the production of rosin, some fine particles are inevitably mixed in the raw material rosin. During the dissolution process of rosin, the fat liquid attached to the surface of the fine particles is a mixture of rosin and turpentine. The specific gravity of this part of the material is between the net fat liquid and water, commonly known as the middle fat liquid. During the production process, after the clarification process, it is directly discharged into the middle fat liquid pool. The middle layer of fat liquid is also the fat liquid between the upper layer of fat liquid and the lower layer of water in the gravity settling tank of dissolved fat liquid. [0003] At present, the treatment of the middle layer fat liquid is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/02C09F3/00
Inventor 周光平凌清华
Owner YUNNAN MEISENYUAN FOREST PRODS TECH
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