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Batch-wise purification, metering and water and impurity separation method of swill-cooked dirty oil

A technology for waste oil and grease, which is used in the recovery of fat/fatty acids from waste, production of fat, and recovery of fatty substances. It can solve the problems of high-quality oil pollution, inaccurate statistics of oil content in raw materials, and no batching, and reduce transportation. and control procedures, optimize weighing sampling operations, improve the effect of the production environment

Inactive Publication Date: 2019-01-08
扬州首创环保能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the gutter oil in our country is concentrated in the gutter oil treatment plant or the kitchen waste treatment plant for disposal. Most of the oil is initially purified by high-temperature cooking, pressing or filtration separation, and natural sedimentation. These methods have low efficiency and high energy consumption. , and there is no batching, separate disposal and storage in the process, resulting in inaccurate statistics of oil content in raw materials, pollution of high-quality oil products, etc.

Method used

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  • Batch-wise purification, metering and water and impurity separation method of swill-cooked dirty oil

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Embodiment 1

[0020] The gutter oil cleared in the sewer grease trap has an oil content of about 40%, a high content of water and impurities, and a high viscosity; pour the gutter oil into the heating tank for inferior oil, heat it to 50°C with direct steam and stir Homogenize and improve the fluidity of the oil; open the valve at the bottom of the tank, the waste oil enters the large material screening machine, removes the large particle size impurities such as plastics and fibers with a particle size above 2mm in the oil, and the screened oil flows to the scale Re-sampling tank, after the weighing reading is stable, take a sample of the oil in the tank to analyze the water content, and calculate the net oil amount of the batch; after the sampling is completed, pump the oil into the low-quality oil heating buffer tank, directly heat the steam to 80°C, and heat The final waste oil enters the three-phase centrifuge to separate the water and solid residue in the oil. The water quality ratio in...

Embodiment 2

[0022] The waste oil used for repeated frying has an oil content of about 90%, less water and impurities, and a higher viscosity; pour the waste oil into a high-quality oil heating tank, heat it to 40°C with direct steam, and stir it homogeneously. Improves oil mobility. Open the valve at the bottom of the tank, and the gutter oil enters the large material screening machine to remove the large particle size impurities such as plastics and fibers with a particle size of more than 2mm in the oil, and the sieved oil flows to the weighing sampling tank by itself, and waits for the weighing reading After stabilization, the oil in the tank is sampled to analyze the water content, and the net oil volume of the batch is calculated; after the sampling is completed, the oil is pumped into the high-quality oil heating buffer tank, and the steam is indirectly heated to 80°C, and the heated waste oil enters the three-phase centrifuge The machine separates the water and solid residue in the...

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Abstract

The invention relates to a batch-wise purification, metering and water and impurity separation method of swill-cooked dirty oil. The method comprises the steps of swill-cooked dirty oil heating, stirring, large particle size impurity screening, weighing, sampling, heating, buffering and centrifugal dewatering. According to the method, first three types of equipment are arranged in a manner that afall exists; all heating and buffering facilities are arranged separately; based on the current similar technology, conveying and operation steps are reduced; weighing and sampling operation is optimized; and a phenomenon of cross contamination between oil products with different quality is avoided. All the equipment are in sealing connection; deodorization connectors are reserved; odor is collected and treated through negative pressure; and a production environment is improved.

Description

technical field [0001] The invention relates to a method for classifying and treating sewer oil, in particular to a method for removing impurities, metering and separating water and impurities in sewer oil in batches. Background technique [0002] Waste oil generally refers to all kinds of low-quality oils that exist in daily life. Long-term consumption may cause cancer and is extremely harmful to the human body. Waste oil can be divided into three categories: one is waste oil in a narrow sense, that is, the greasy floating matter in the sewer or the oil that is simply processed and extracted from leftovers and leftovers (commonly known as swill) in hotels and restaurants; the other is poor-quality pork , pig viscera, pig skin processing and oil produced after refining; the third is the oil used for fried food after a certain number of times, and then reused or added some new oil to it and then reused. [0003] Waste oil is produced in large quantities, and it is very harmf...

Claims

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Application Information

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IPC IPC(8): C11B13/00
CPCC11B13/00Y02W30/74
Inventor 谢钟林
Owner 扬州首创环保能源有限公司
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