Special production line and method for cold pressing extraction of pistacia chinensis seed oil

Abstract

The invention belongs to the technical field of biodiesel preparation and particularly relates to a special production line and method for the cold pressing extraction of pistacia chinensis seed oil.The production line sequentially comprises a washing tank, a lifting conveying device, a horizontal conveying device and a spiral oil pressing device in the running direction of materials, wherein thelifting conveying device and the horizontal conveying device both adopt a mesh belt type conveying structure; a storage bin arranged at the feeding end of the lower part of the lifting conveying device is located at the bottom in the washing tank, and the side wall of the washing tank is provided with a material pushing plate and a forward and backward translation driving mechanism; an upper blowing mechanism and a lower blowing mechanism are arranged above and below a conveying mesh belt of the horizontal conveying device, and the discharging end of the horizontal conveying device is locatedabove a feeding opening of the spiral oil pressing device; and in the spiral oil pressing device, a plurality of thread spiral sleeves are fixedly arranged on the surface of a spiral main shaft in asleeving manner, the surface of a bar cage is provided with a cooling coiled pipe, one end of the cooling coiled pipe is provided with a refrigerant inlet, the other end is provided with a refrigerantoutlet, and a filter net is fixedly arranged at the upper part in an oil collecting groove. By optimizing the technology and the structure, labor can be saved, the production efficiency can be increased, the oil yield is high, the output is high, and oil quality is great.

Description

technical field [0001] The invention belongs to the technical field of biodiesel preparation, and in particular relates to a special production line and method for cold-pressing and extracting pistachio chinensis seed oil. Background technique [0002] At present, people's demand for energy is increasing rapidly, and energy has become an important part that cannot be ignored in the process of economic development. Traditional energy such as natural gas, coal and oil are non-renewable resources, so how to research and develop renewable energy has very important practical significance. As a kind of biomass energy, biodiesel has been widely used based on its good combustion properties, renewable and environmental protection. Since the oil content of Pistacia chinensis seeds is more than 40%, and Pistacia chinensis is widely distributed in my country, it is a good raw material for biodiesel preparation. [0003] At present, the methods for extracting oil from Pistacia chinensi...

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Problems solved by technology

[0004] However, since there is currently no complete set of special equipment for physical extraction of Pistacia chinensis seed oil in the existing market, the physical extraction process of Pistacia chinensis oil for physical extraction is still done by manpower to a certain extent. Therefore, the production efficiency is low, and the labor intensity of workers is also high.

Moreover, most of the oil pressing equipment used in the existing production process is the physical pressing equipment used by small oil processing enterprises, which is not suitable for hard woody oils such as Coptis chinensis and low temperature (about 80°C) conditions. raw meal pressing process

In addition, in the actual cold pressing production process of the existing oil pressing equipment, due to the heat generated by factors such as cracking, extrusion deformation, and friction of the Pistacia chinensis seeds during the rolling process, the temperature rises, so that the obtained Pistacia chinensis seeds The oil quality of the oil is denatured, which ultimately affects the combustion value of the prepared biodiesel

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