Grease enzymolysis reaction equipment

Abstract

The utility model discloses grease enzymolysis reaction equipment, which comprises a tower body and a jet flow mixing system, the tower body is coated with a heat insulation sleeve, the jet flow mixing system comprises a jet flow pump, a material spraying pipe and a jet flow nozzle, and the jet flow nozzle comprises a connecting part and a material spraying part which are communicated with the material spraying pipe. The material spraying part is connected with the connecting part through an inward-retracting part which is gradually retracted inwards from the connecting part, and the inner diameter of the material spraying part is smaller than that of the connecting part; a circulating outlet is formed in the bottom of the tower body, the spraying pipe is provided with a circulating inlet, an inlet of the jet pump is connected with the circulating outlet through a first pipeline, an outlet of the jet pump is connected with the circulating inlet through a second pipeline, and a first valve is arranged on the first pipeline. According to the utility model, a jet mixing mode is adopted to promote the mixing of raw oil and an enzyme water phase, the jet pump provides power for the jet injection of the jet nozzle, the jet flow velocity is ensured, turbulent flow and shear force are generated at a relatively high jet flow velocity to efficiently and uniformly mix the raw oil and the enzyme water phase, the acid value of a crude product reaches over 180KOH mg / g, and the yield of fatty acid is improved.

Description

Technical Field

[0001] The utility model relates to the field of oil hydrolysis, in particular to oil enzymatic hydrolysis reaction equipment. Background Art

[0002] Recycled oils are a variety of low-quality oils found in daily life. They primarily include gutter oil from restaurants, fried oil and pork that has been used several times, and oil extracted or processed from pig skin. Recycled oil's primary components are free fatty acids and triglycerides (i.e., oils and fats). Recycling recycled oil is the primary method for its disposal. Currently, there are two main approaches for recycling recycled oil: esterification with methanol to produce fatty acid methyl esters (i.e., biodiesel), and hydrolysis of recycled oil to produce fatty acids, which are used as lubricants, additives, surfactants, and paint and coating raw materials. Currently, high-pressure hydrolysis is the primary method used in China to hydrolyze fatty acids from oils and fats. This method utilizes a high-pressure hydrolysis tower, but it suffers from high reaction temperatures, high pressures, high energy consumption, dark color, and numerous byproducts. Lipase hydrolysis, which overcomes the limitations of high-pressure hydrolysis, offers relatively mild reaction conditions, high fatty acid yields, and high-quality products. It is a current research hotspot. Therefore, designing a suitable reactor for the hydrolysis of fatty acids into oils and fats is crucial for the industrialization of enzymatic hydrolysis of oils and fats. Summary of the Invention

[0003] In view of this, the utility model proposes an oil enzymatic hydrolysis reaction equipment, which has good mixing effect, improves the yield of fatty acids, and can increase the acid value of crude products to above 180 KOH mg / g.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] The oil enzymatic hydrolysis reaction equipment described in the present invention includes a tower body with an insulation sleeve on the outside, and also includes a jet mixing system for uniformly mixing the raw oil and the enzyme water phase. The jet mixing system includes a jet pump, a spray pipe arranged in the tower body, and a plurality of jet nozzles connected to the spray pipe. The jet nozzle is inclined upward and includes a connecting part connected to the spray pipe and a spraying part. The spraying part is connected to the connecting part through an inward part that gradually retracts from the connecting part, and the inner diameter of the spraying part is smaller than the inner diameter of the connecting part; the bottom of the tower body is provided with a circulation outlet, the spray pipe has a circulation inlet and is located outside the tower body, the inlet of the jet pump is connected to the circulation outlet through a first pipeline, the outlet of the jet pump is connected to the circulation inlet through a second pipeline, and the first pipeline is provided with a first valve.

[0006] The beneficial effects are as follows: the utility model adopts a jet mixing mode to promote the mixing of the raw oil and the enzyme aqueous phase; the jet pump provides power for the jet injection of the jet nozzle to ensure the jet flow rate; a larger jet flow rate can generate turbulence and shear force, thereby achieving efficient and uniform mixing of the raw oil and the enzyme aqueous phase; the acid value of the fatty acids in the crude product is as high as 180 KOH mg / g or more, thereby improving the fatty acid yield.

[0007] More preferably, at least two of the spray pipes are provided in the tower body, and each spray pipe is arranged in a circular shape in the tower body; the second pipeline has a main pipe connected to the jet pump and a branch pipe connected one by one to each spray pipe, a second valve is provided on the main pipe, and a third valve is provided on each of the branch pipes.

[0008] Compared with the existing technology, the advantages of the present invention are: the present invention adopts a jet mixing mode to promote the mixing of the raw oil and the enzyme aqueous phase, the jet pump provides power for the jet injection of the jet nozzle, ensuring the jet flow rate, and the larger jet flow rate can generate turbulence and shear force, thereby achieving efficient and uniform mixing of the raw oil and the enzyme aqueous phase, the acid value of the fatty acids in the crude product is as high as 180 KOH mg / g or more, and the fatty acid yield is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the present utility model.

[0010] Figure 2 It is a schematic diagram of the jet nozzle of the utility model. DETAILED DESCRIPTION

[0011] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process. However, the protection scope of the present invention is not limited to the following embodiment.

[0012] It should be noted that, in the description of the present utility model, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0013] In the description of this utility model, unless otherwise specified or limited, the terms "connected" and "connection" that may appear should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integral connection; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium, or it can mean internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood based on specific circumstances.

[0014] like Figure 1-2 As shown, the oil enzymatic hydrolysis reaction equipment described in the utility model includes a tower body 1 coated with an insulation sleeve on the outside, and also includes a jet mixing system for uniformly mixing the raw material oil and the enzyme water phase; the lower part of the tower body 1 is provided with a feed port, and the upper part of the tower body 1 is provided with a discharge port, the mixed raw materials enter the tower body 1 through the feed port, and the reaction products flow out through the discharge port on the upper part of the tower body 1; the jet mixing system includes a jet pump 2, a spray pipe 3 arranged in the tower body 1 and a plurality of jet nozzles 4 connected to the spray pipe 3, the plurality of jet nozzles 4 on each spray pipe 3 are inclined upward, and each jet nozzle 4 includes a connecting portion 4a and a spraying portion 4b connected to the spray pipe 3, the spraying portion 4b is connected to the connecting portion 4a by an inward portion 4c gradually retracted from the connecting portion 4a, the inner diameter of the spraying portion 4b is smaller than the inner diameter of the connecting portion 4a, and the jet nozzle 4 adopts a shrinking design to ensure the jet effect;

[0015] The tower body 1 has a circulation outlet at the bottom, and the injection pipe 3 has a circulation inlet and is located outside the tower body 1. The inlet of the jet pump 2 is connected to the circulation outlet via a first pipeline 5, and the outlet of the jet pump 2 is connected to the circulation inlet via a second pipeline 6. A first valve F1 is provided on the first pipeline 5. The utility model adopts a jet mixing mode to promote the mixing of the feedstock oil and the enzyme aqueous phase. The jet pump 2 provides power for the jet injection of the jet nozzle 4, ensuring the jet flow rate. A high jet flow rate can generate turbulence and shear force, thereby achieving efficient and uniform mixing of the feedstock oil and the enzyme aqueous phase. The acid value of the fatty acids in the crude product is as high as 180 mg / g KOH, thereby improving the fatty acid yield.

[0016] During actual installation, two or more injection pipes 3 are installed within the tower body 1. Each injection pipe 3 is arranged in a circular shape within the tower body 1, ensuring that the materials throughout the tower body 1 participate in turbulent mixing and ensuring uniform mixing of the materials. The second pipeline 6 comprises a main pipe connected to the jet pump 2 and branch pipes connected to each injection pipe 3. The main pipe is equipped with a second valve F2, and each branch pipe is equipped with a third valve F2. During the reaction process, the first valve F1, the second valve F2, and the third valve F2 are all normally open to ensure the normal operation of the jet mixing system.

[0017] Finally, it should be emphasized that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments without inventive effort, or replace some of the technical features therein with equivalents. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fat enzymatic hydrolysis reaction equipment, comprising a tower body coated with an insulation jacket, characterized in that: It also includes a jet mixing system for uniformly mixing the raw oil and the enzyme aqueous phase, the jet mixing system includes a jet pump, a spray pipe arranged in the tower body and a plurality of jet nozzles connected to the spray pipe, the jet nozzle is inclined upward, and includes a connecting part connected to the spray pipe and a spraying part, the spraying part is connected to the connecting part through an inward part that gradually retracts inward from the connecting part, and the inner diameter of the spraying part is smaller than the inner diameter of the connecting part; the bottom of the tower body is provided with a circulation outlet, the spray pipe has a circulation inlet and is located outside the tower body, the inlet of the jet pump is connected to the circulation outlet through a first pipeline, the outlet of the jet pump is connected to the circulation inlet through a second pipeline, and the first pipeline is provided with a first valve.

2. The oil enzymatic hydrolysis reaction equipment according to claim 1, characterized in that: At least two spray pipes are arranged in the tower body, and each spray pipe is arranged in a circular shape in the tower body; the second pipeline has a main pipe connected to the jet pump and a branch pipe connected to each spray pipe one by one, the main pipe is provided with a second valve, and each branch pipe is provided with a third valve.

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