Distillation process for energy-saving gum rosin
A technology of gum rosin and process, which is applied in the technical field of steam distillation of gum rosin, can solve the problems of waste of heat energy, large heat energy loss, etc., achieve steam saving, significant energy saving effect, and shorten distillation time
Inactive Publication Date: 2007-03-14
陆让先
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Problems solved by technology
At present, rosin factories at home and abroad generally use steam to distill rosin. This method has the advantages of good rosin quality, convenient operation, and safe production, but the heat loss is large because the two strands used in the distillation process are called closed steam. And the high-temperature steam of live steam, (the closed steam is used to heat the turpentine liquid but does not contact with the turpentine liquid, the live steam enters the turpentine liquid and penetrates the fat liquid layer, and is used to extract the turpentine in the fat liquid) both enter the distillation pot The previous temperature is about 350°C, and when the distillation is completed and leaves the still pot, the maximum temperature of each tail steam can reach about 250°C. Consuming a lot of cold water to cool down to collect the turpentine, it can be seen that in the current distillation process, most of the heat energy in the steam is uselessly wasted
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[0015] Below in conjunction with accompanying drawing, the gum rosin distillation process of the present invention will be further described.
[0016] Referring to the accompanying drawings, the gum rosin distillation process of this embodiment is to divide the gum rosin distillation process into three operating sections according to the temperature level, and the preheating section is between the original temperature of the fat liquid and 130 ° C, and the highest preheating section for masson pine rosin The heating temperature is 125°C-130°C, and the maximum preheating temperature for slash pine, southern Asian pine, and Simao pine resin is 120°C-125°C. The middle value from the highest temperature in the preheating section to the end of distillation is the low-temperature distillation section, and the middle value to the end of distillation is the high-temperature distillation section. The highest distillation temperature range is 180°C-200°C; the highest distillation tempera...
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One kind of energy saving gum rosin distilling process is provided, which features that the closed tail steam and the active tail steam exhausted at the medium and high temperature stages during the gum rosin distilling process are returned to the low temperature stage and the preheating stage of the distilling process separately for reuse. Compared with available gum rosin distilling process, the present invention can shorten the gum rosin distilling time by 50 %, save steam by 50 % and save coal and cooling water obviously.
Description
1. Technical field [0001] The invention belongs to the field of gum rosin processing, and belongs to a technique for distilling gum rosin with steam. 2. Background technology [0002] Gum rosin is a widely used production raw material. It is widely used in industrial fields such as tires, paint, papermaking, printing, food, clothing, printing and dyeing, furniture, electrical appliances, and construction. [0003] Gum rosin is obtained by distillation of pine resin secreted by pine trees. At present, rosin factories at home and abroad generally use steam to distill rosin. This method has the advantages of good rosin quality, convenient operation, and safe production, but the heat loss is large because the two strands used in the distillation process are called closed steam. And the high-temperature steam of live steam, (the closed steam is used to heat the turpentine liquid but does not contact with the turpentine liquid, the live steam enters the turpentine liquid and pene...
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IPC IPC(8): C09F1/02
Inventor 陆让先
Owner 陆让先