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Pretreatment process and equipment for squeezed crude oil

A pretreatment and crude oil technology, which is applied in the direction of fat oil/fat refining, separation method, filtration separation, etc., can solve the problems of insignificant slag discharge effect and slow slag discharge efficiency, and achieve the effect of good sealing and small volume

Pending Publication Date: 2022-05-13
ZHENGZHOU LIANGGONG ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For example, patent application 201410049249.1 discloses a low-temperature pressing production process of camellia oil. The extracted slag-containing crude oil is precipitated in the oil tank to remove the slag, filtered by a blade filter, and the obtained camellia seed crude oil is sent to the refining workshop for further processing. , the deslagging efficiency of the impurity removal method in this scheme is slow, the slagging effect is not obvious, and secondary filtration processing is required

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  • Pretreatment process and equipment for squeezed crude oil

Examples

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Effect test

Embodiment 1

[0026] A kind of pretreatment equipment for pressed crude oil, including an impurity removal device, the impurity removal device includes a decanter centrifuge 2 and a cloth bag filter 3, one end of the decanter centrifuge 2 is connected to a clarified oil tank 1 storing pressed crude oil through a pipeline, The other end of the decanter centrifuge 2 is connected with the bag filter 3 through a pipeline.

[0027] In the present embodiment, the crude oil pretreatment process of pressing is:

[0028] (1) Rapeseed impurity removal: The rapeseed uses a dust collector to remove floating dust, and then the dedusted rapeseed is processed through a vibrating screen to remove large particles of impurities, and then rolled by a flaking machine to a thickness of 0.8mm and a water content of 8% of the cake.

[0029] (2) Pressing: The cake after removing impurities in step (1) is put into a steamer and fried at 115°C for steaming and frying to form wet rapeseed meal, which is sent to an o...

Embodiment 2

[0032] (1) Rapeseed impurity removal: the rapeseed uses a dust collector to remove floating dust, and then the dedusted rapeseed is processed through a vibrating screen to remove large particles of impurities, and then rolled by a flaking machine to a thickness of 0.6mm and a water content of It is 1% thick material cake.

[0033] (2) Pressing: The thick cake after removing impurities in step (1) is put into a steamer and fried at 110°C for steaming and frying to form wet rapeseed meal, which is sent to an oil press to control the pressing The temperature of the oil machine is 115°C, the pressure is 35Mpa, and pressing is carried out to obtain pressed crude oil.

[0034] (3) Secondary impurity removal: the pressed crude oil is input into the clear oil tank and left to stand for 8 hours, then pumped into a decanter centrifuge, and centrifuged at a speed of 2800rpm to remove small impurities and colloids in the pressed crude oil, and then passed through into the cloth bag filte...

Embodiment 3

[0036] (1) Rapeseed impurity removal: the rapeseed uses a dust collector to remove floating dust, and then the dedusted rapeseed is processed through a vibrating screen to remove large particles of impurities, and then rolled by a flaking machine to a thickness of 1.0mm and a water content of It is 4% thick material cake.

[0037] (2) Pressing: The thick cake after removing impurities in step (1) is put into a steamer and fried at 120°C for steaming and frying to form wet rapeseed meal. The temperature of the oil machine is 95°C, the pressure is 45Mpa, and pressing is carried out to obtain pressed crude oil.

[0038] (3) Secondary impurity removal: the pressed crude oil is input into the oil tank and left to stand for 10 hours, then pumped into a decanter centrifuge, and centrifuged at a speed of 3600rpm to remove small impurities and colloids in the pressed crude oil, and then passed through into the cloth bag filter to remove tiny impurities in the pressed crude oil. The fi...

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Abstract

The invention relates to edible oil production equipment, in particular to a squeezed crude oil pretreatment process and equipment thereof. The squeezed crude oil pretreatment process comprises the following steps: inputting squeezed crude oil into an oil clarifying tank, standing to remove impurities, then pumping the squeezed crude oil into a horizontal screw centrifuge for centrifuging, and then introducing the centrifuged pretreated crude oil into a cloth bag filter for filtering to obtain pretreated crude oil with the impurity content of less than or equal to 0.5%. According to the invention, the squeezed crude oil is firstly subjected to large impurity removal in the oil clarifying tank, then is input into the horizontal screw centrifuge to remove fine impurities and colloids, and then is removed by the cloth bag filter, so that the finally obtained pretreated crude oil has low impurity content and can directly enter a refining workshop to prepare high-quality oil without secondary impurity removal and filtration treatment; the pretreated crude oil can reach the impurity content standard of high-quality oil, and the impurity content in the crude oil is smaller than or equal to 0.5% by taking squeezed crude oil in a 300D / T pretreatment workshop as an example.

Description

technical field [0001] The invention relates to an edible oil production process and its equipment, more specifically, to a pressed crude oil pretreatment process and its equipment. Background technique [0002] Edible oil, also known as "edible oil", refers to animal or vegetable fats used in the process of making food. It is liquid at room temperature. Due to the source of raw materials, processing technology and quality, common edible oils are mostly vegetable oils, including rapeseed oil, peanut oil, hemp oil, corn oil, olive oil, camellia oil, palm oil, sunflower oil, soybean oil, sesame oil, Flaxseed oil (flax oil), grapeseed oil, walnut oil, peony seed oil, etc. [0003] Pressing is a step in the production method of edible oil. This method is to directly separate the oil from the oil by physical pressure. The whole process does not have any chemical additives to ensure that the product is safe, hygienic, pollution-free, and the natural nutrition is not damaged. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/16B01D36/04
CPCC11B3/001C11B3/008C11B3/16B01D36/045
Inventor 周自宽牛建丽何浩杰
Owner ZHENGZHOU LIANGGONG ENG
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