Decoloring device for extracting L-leucine by protein hydrolysis method

Abstract

The utility model relates to a decoloring device for extracting L-leucine by a protein hydrolysis method, which comprises a decoloring reaction tank, a leucine hydrolysate feeding port and an activated carbon decoloring agent feeding port are arranged on a decoloring reaction tank cover, and a rotary power mechanism and a stirring rod are mounted on the top wall of the middle of the decoloring reaction tank cover. A leucine hydrolysis heat exchange coil pipe, an activated carbon decolorizing agent heat exchange coil pipe and a decolorizing heat exchange coil pipe are arranged in the decolorizing reaction tank body, and a discharge port is formed in the bottom of the decolorizing reaction tank body; through the rotary power mechanism and the stirring rod which are arranged in the decolorizing tank body, the leucine hydrolysate and the activated carbon decolorizing agent can be ensured to be fully mixed in the decolorizing reaction tank, and the lower bent rod design of the stirring rod can increase the contact area between activated carbon and pigment molecules, so that the decolorizing reaction speed is accelerated, and the decolorizing effect is improved. Therefore, the decoloring efficiency is improved, the color of the final product is more uniform and consistent, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leucine preparation, in particular to a decolorizing device for extracting L-leucine by protein hydrolysis. Background Art

[0002] When extracting L-leucine by protein hydrolysis, the raw material needs to be hydrolyzed by a hydrolyzing agent first, and then the hydrolyzate containing leucine needs to be separated into solid and liquid, and finally the leucine hydrolyzate needs to be decolorized. In order to ensure that the decolorizing agent can fully contact with the leucine hydrolyzate during the decolorization process, we generally need to fully stir the leucine hydrolyzate and maintain a certain temperature in the decolorization tank during stirring. However, during the use of the current decolorization tank, uneven stirring or uneven heating is prone to occur, which directly affects the decolorization effect of leucine and easily forms a certain amount of particle accumulation at the bottom of the decolorization tank; therefore, we improve the existing equipment to meet the decolorization needs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a decolorization device for extracting L-leucine by protein hydrolysis method, which can stir at the feeding port of leucine hydrolyzate and decolorizing agent to improve the decolorization effect to the greatest extent.

[0004] The technical problem to be solved by the utility model is achieved through the following technical scheme: a decolorization device for extracting L-leucine by protein hydrolysis, the decolorization device comprising a decolorization reaction tank, the decolorization reaction tank comprising a decolorization reaction tank body and a decolorization reaction tank cover, the decolorization reaction tank cover is arranged on the decolorization reaction tank body;

[0005] A leucine hydrolyzate feeding port and an activated carbon decolorant feeding port are arranged on the decolorization reaction tank cover, a rotary power mechanism is installed on the middle top wall of the decolorization reaction tank cover, a stirring rod is connected to the power output end of the rotary power mechanism through a coupling transmission, and the lower end of the stirring rod extends into the decolorization reaction tank body;

[0006] A leucine hydrolysis heat exchange coil, an activated carbon decolorant heat exchange coil and a decolorization heat exchange coil are arranged in the decolorization reaction tank body. The decolorization heat exchange coil is located in the middle part of the decolorization reaction tank body. A decolorization heat exchange coil feed port and a decolorization heat exchange coil discharge port are arranged on the middle outer wall of the decolorization reaction tank body. The inlet end of the leucine hydrolysis heat exchange coil is connected to the leucine hydrolyzate feeding port, and the outlet end is directly opposite to the lower end of the stirring rod. The inlet end of the activated carbon decolorant heat exchange coil is connected to the activated carbon decolorant feeding port, and the outlet end is directly opposite to the lower end of the stirring rod. A discharge port is arranged at the bottom of the decolorization reaction tank body.

[0007] The technical problem to be solved by the utility model can also be achieved by the following technical scheme. In the above-mentioned decolorization device for extracting L-leucine by protein hydrolysis method, the leucine hydrolysis heat exchange coil and the activated carbon decolorizer heat exchange coil both include an upper curved pipe section and a lower straight pipe section. The upper curved pipe sections of the leucine hydrolysis heat exchange coil and the activated carbon decolorizer heat exchange coil are both located above the decolorization heat exchange coil, and the lower straight pipe sections of the leucine hydrolysis heat exchange coil and the activated carbon decolorizer heat exchange coil are located in the middle of the decolorization heat exchange coil.

[0008] The technical problem to be solved by the utility model can also be achieved by the following technical scheme. In the above-mentioned decolorization device for extracting L-leucine by protein hydrolysis method, the stirring rod comprises an upper straight rod and a lower curved rod, the top end of the upper straight rod is transmission-connected with the rotating power mechanism, and the bottom end extends to the bottom of the decolorization reaction tank body, the lower curved rod is fixed on the bottom end of the upper straight rod, and the outlet ends of the leucine hydrolysis heat exchange coil and the activated carbon decolorizer heat exchange coil are directly opposite to the lower curved rod of the stirring rod.

[0009] The technical problem to be solved by the utility model can also be achieved through the following technical scheme. In the above-mentioned decolorization device for extracting L-leucine by protein hydrolysis, there are two lower curved rods, which are symmetrically arranged on the bottom end of the upper straight rod.

[0010] The technical problem to be solved by the utility model can also be achieved by the following technical scheme. The above-mentioned decolorization device for extracting L-leucine by protein hydrolysis method is provided with a lower interface on the bottom outer wall of the decolorization reaction tank body, and an upper interface is provided on the top outer wall of the decolorization reaction tank body. Circulation pipes are provided on the lower interface and the upper interface, and a circulation pump is provided on the circulation pipe to pump the material in the bottom of the decolorization tank body to the top of the decolorization tank body.

[0011] The technical problem to be solved by the utility model can also be achieved by the following technical scheme. In the above-mentioned decolorization device for extracting L-leucine by protein hydrolysis, a pressure relief valve and a pressure gauge are arranged on the cover of the decolorization reaction tank.

[0012] The technical problem to be solved by the utility model can also be achieved by the following technical scheme. In the above-mentioned decolorization device for extracting L-leucine by protein hydrolysis, a liquid level meter is arranged on the middle outer wall of the decolorization reaction tank.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are:

[0014] (1) The rotating power mechanism and stirring rod arranged in the decolorization tank body can ensure that the leucine hydrolyzate and the activated carbon decolorizer are fully mixed in the decolorization reaction tank, and the lower curved rod design of the stirring rod can increase the contact area between the activated carbon and the pigment molecules, accelerate the decolorization reaction speed, thereby improving the decolorization efficiency, making the color of the final product more uniform and consistent, and improving the product quality;

[0015] (2) Leucine hydrolysis heat exchange coil, activated carbon decolorant heat exchange coil and decolorization heat exchange coil are arranged in the decolorization tank. These heat exchange coils can effectively control the temperature during the reaction process. By adjusting the temperature of the medium entering and leaving the heat exchange coil, it is beneficial to maintain the enzyme activity and optimize the reaction rate. At the same time, it avoids the adverse effects of overheating or too low temperature on the decolorization reaction, thereby improving the stability and controllability of the decolorization process;

[0016] (3) In order to improve the fluidity of the fluid in the decolorization tank, a circulation pump and a circulation pipe are added to the decolorization tank body to realize the circulation of the materials in the decolorization reaction tank, further improving the mixing effect and decolorization uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Attached photos

[0019] 1. Decolorization reaction tank body; 2. Decolorization reaction tank cover; 3. Pressure relief valve; 4. Pressure gauge; 5. Liquid level gauge; 6. Leucine hydrolyzate feeding port; 7. Activated carbon decolorizer feeding port; 8. Rotary power mechanism; 9. Upper straight rod; 10. Lower curved rod; 11. Decolorization heat exchange coil; 12. Discharge port; 13. Leucine hydrolysis heat exchange coil; 14. Activated carbon decolorizer heat exchange coil; 15. Circulation pipe; 16. Circulation pump. DETAILED DESCRIPTION

[0020] The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and do not constitute any limitation to the rights thereof.

[0021] Example 1, reference Figure 1A decolorization device for extracting L-leucine by protein hydrolysis, the decolorization device comprises a decolorization reaction tank, the decolorization reaction tank is formed into a roughly spherical tank structure, the decolorization reaction tank comprises a decolorization reaction tank body 1 and a decolorization reaction tank cover 2, the decolorization reaction tank cover 2 is covered on the decolorization reaction tank body 1, a pressure relief valve 3 and a pressure gauge 4 are arranged on the decolorization reaction tank cover 2, the air pressure in the decolorization reaction tank can be balanced by the pressure relief valve 3, the pressure in the tank can be obtained by the pressure gauge 4, a liquid level meter 5 is arranged on the middle outer wall of the decolorization reaction tank body 1, and the liquid level in the tank can be obtained by the liquid level meter 5;

[0022] The decolorization reaction tank cover 2 is provided with a leucine hydrolyzate feeding port 6 and an activated carbon decolorizer feeding port 7, through which the leucine hydrolyzate and the activated carbon decolorizer can be added into the decolorization reaction tank. A rotating power mechanism 8 is installed on the middle top wall of the decolorization reaction tank cover 2. The rotating power mechanism 8 can be a servo motor. A stirring rod is connected to the power output end of the rotating power mechanism 8 through a coupling transmission. The lower end of the stirring rod extends into the decolorization reaction tank body 1. The stirring rod includes an upper A straight rod 9 and a lower curved rod 10, wherein the upper straight rod 9 is formed into a roughly rod-shaped structure, and the lower curved rod 10 is formed into a roughly semicircular ring-shaped structure, the top end of the upper straight rod 9 is connected to the rotating power mechanism 8 for transmission, and the bottom end extends to the bottom of the decolorization reaction tank body 1, and the lower curved rod 10 is fixed to the bottom end of the upper straight rod 9, and the fluid in the decolorization reaction tank can be fully stirred by the lower curved rod 10, so that the leucine hydrolyzate and the activated carbon decolorizer are fully mixed and contacted;

[0023] A leucine hydrolysis heat exchange coil 13, an activated carbon decolorant heat exchange coil 14 and a decolorization heat exchange coil 11 are arranged in the decolorization reaction tank body 1. The decolorization heat exchange coil 11 is located in the middle of the decolorization reaction tank body 1. A decolorization heat exchange coil 11 feed port and a decolorization heat exchange coil 11 discharge port are arranged on the middle outer wall of the decolorization reaction tank body 1. The inlet end of the leucine hydrolysis heat exchange coil 13 is in contact with the leucine hydrolyzate. The inlet end of the activated carbon decolorant heat exchange coil 14 is connected to the activated carbon decolorant feeding port 7, and the outlet end is opposite to the lower end of the stirring rod. A discharge port 12 is provided at the bottom of the decolorization reaction tank body 1. The outlet ends of the leucine hydrolysis heat exchange coil 13 and the activated carbon decolorant heat exchange coil 14 are opposite to the lower bent rod of the stirring rod. The leucine hydrolyzate and the activated carbon decolorant are connected to the activated carbon decolorant feeding port 7, and the outlet end is opposite to the lower end of the stirring rod. During the period when the leucine hydrolysis heat exchange coil 13 and the activated carbon decolorant heat exchange coil 14 are added into the decolorization reaction tank body 1, sufficient heat exchange can be performed with the hot fluid in the decolorization reaction tank body 1, so that the leucine hydrolyzate and the activated carbon decolorant can be fully mixed and contacted to the greatest extent. The lower bent rods are provided with two, and the two lower bent rods can fully stir the fluid in the decolorization reaction tank. The two lower bent rods are symmetrically arranged on the bottom end of the upper straight rod 9. The leucine hydrolysis heat exchange coil 13 and the activated carbon decolorant heat exchange coil 14 both include an upper bent pipe section and a lower straight pipe section. The upper bent pipe sections of the leucine hydrolysis heat exchange coil 13 and the activated carbon decolorant heat exchange coil 14 are both located above the decolorization heat exchange coil 11, and the lower straight pipe sections of the leucine hydrolysis heat exchange coil 13 and the activated carbon decolorant heat exchange coil 14 are located in the middle of the decolorization heat exchange coil 11;

[0024] A lower interface is provided on the bottom outer wall of the decolorization reaction tank body 1, and an upper interface is provided on the top outer wall of the decolorization reaction tank body 1. A circulation pipe 15 is provided on the lower interface and the upper interface. A circulation pump 16 for pumping the material in the bottom of the decolorization tank body to the top of the decolorization tank body is provided on the circulation pipe 15. The decolorization effect of the leucine hydrolysis mixed solution can be improved by turning on the circulation pump 16 so that the fluid in the bottom of the decolorization reaction tank body 1 flows back to the top of the decolorization reaction tank body 1.

[0025] Advantages of using the above decolorization device:

[0026] The designed rotating power mechanism 8 and stirring rod, especially the lower bent rod 10 of the stirring rod, can ensure that the leucine hydrolyzate and the activated carbon decolorizer are fully mixed in the decolorization reaction tank. This mixing not only increases the contact area between the activated carbon and the pigment molecules, but also accelerates the speed of the decolorization reaction, thereby improving the decolorization efficiency, making the color of the final product more uniform and consistent, and improving the product quality.

[0027] The device is provided with a leucine hydrolysis heat exchange coil 13, an activated carbon decolorant heat exchange coil 14 and a decolorization heat exchange coil 11, which can effectively increase the medium temperature in the decolorization tank, which is beneficial to maintain enzyme activity and optimize the reaction rate, while avoiding the adverse effects of overheating or too low temperature on the reaction, thereby improving the stability and controllability of the decolorization process;

[0028] When the decolorization device for extracting L-leucine by protein hydrolysis is used, firstly, a hot fluid is circulated in the decolorization heat exchange coil 11 to increase the temperature of the fluid in the decolorization tank, and then the leucine hydrolyzate and the activated carbon decolorizer are added into the decolorization tank through the leucine hydrolysis heat exchange coil 13 and the activated carbon decolorizer heat exchange coil 14 respectively. During this period, the rotating power mechanism 8 is turned on, and the leucine hydrolyzate and the activated carbon decolorizer added into the decolorization tank can be fully mixed by the lower bent rod 10 of the stirring rod. In addition, during the discharge process of the leucine hydrolyzate and the activated carbon decolorizer, the leucine hydrolyzate and the activated carbon decolorizer in the leucine hydrolysis heat exchange coil 13 and the activated carbon decolorizer heat exchange coil 14 can be heat-exchanged with the heated fluid in the decolorization tank in advance, so as to form preheating, thereby maximally improving the mixing effect of the leucine hydrolyzate and the activated carbon decolorizer in the later stage, and improving the decolorization effect of leucine. After decolorization, the material can be discharged through the discharge port 12.

Claims

1. A decolorization device for extracting L-leucine by protein hydrolysis, characterized in that: The decolorization device comprises a decolorization reaction tank, which comprises a decolorization reaction tank body and a decolorization reaction tank cover, wherein the decolorization reaction tank cover is arranged on the decolorization reaction tank body; A leucine hydrolyzate feeding port and an activated carbon decolorant feeding port are arranged on the decolorization reaction tank cover, a rotary power mechanism is installed on the middle top wall of the decolorization reaction tank cover, a stirring rod is connected to the power output end of the rotary power mechanism through a coupling transmission, and the lower end of the stirring rod extends into the decolorization reaction tank body; A leucine hydrolysis heat exchange coil, an activated carbon decolorant heat exchange coil and a decolorization heat exchange coil are arranged in the decolorization reaction tank body. The decolorization heat exchange coil is located in the middle part of the decolorization reaction tank body. A decolorization heat exchange coil feed port and a decolorization heat exchange coil discharge port are arranged on the middle outer wall of the decolorization reaction tank body. The inlet end of the leucine hydrolysis heat exchange coil is connected to the leucine hydrolyzate feeding port, and the outlet end is directly opposite to the lower end of the stirring rod. The inlet end of the activated carbon decolorant heat exchange coil is connected to the activated carbon decolorant feeding port, and the outlet end is directly opposite to the lower end of the stirring rod. A discharge port is arranged at the bottom of the decolorization reaction tank body.

2. A decolorization device for extracting L-leucine by protein hydrolysis according to claim 1, characterized in that: The leucine hydrolysis heat exchange coil and the activated carbon decolorant heat exchange coil both include an upper curved pipe section and a lower straight pipe section. The upper curved pipe sections of the leucine hydrolysis heat exchange coil and the activated carbon decolorant heat exchange coil are both located above the decolorization heat exchange coil, and the lower straight pipe sections of the leucine hydrolysis heat exchange coil and the activated carbon decolorization heat exchange coil are located in the middle of the decolorization heat exchange coil.

3. A decolorization device for extracting L-leucine by protein hydrolysis according to claim 1, characterized in that: The stirring rod comprises an upper straight rod and a lower bent rod. The top end of the upper straight rod is transmission-connected to the rotating power mechanism, and the bottom end extends to the bottom of the decolorization reaction tank body. The lower bent rod is fixed on the bottom end of the upper straight rod. The outlet ends of the leucine hydrolysis heat exchange coil and the activated carbon decolorizer heat exchange coil are directly opposite to the lower bent rod of the stirring rod.

4. A decolorizing device for extracting L-leucine by protein hydrolysis according to claim 3, characterized in that: There are two lower curved rods, which are symmetrically arranged on the bottom ends of the upper straight rods.

5. The decolorization device for extracting L-leucine by protein hydrolysis according to claim 1, characterized in that: A lower interface is arranged on the bottom outer wall of the decolorization reaction tank body, an upper interface is arranged on the top outer wall of the decolorization reaction tank body, circulation pipes are arranged on the lower interface and the upper interface, and a circulation pump is arranged on the circulation pipe to pump the material in the bottom of the decolorization tank body to the top of the decolorization tank body.

6. The decolorization device for extracting L-leucine by protein hydrolysis according to claim 1, characterized in that: A pressure relief valve and a pressure gauge are provided on the cover of the decolorization reaction tank.

7. The decolorization device for extracting L-leucine by protein hydrolysis according to claim 1, characterized in that: A liquid level gauge is arranged on the middle outer wall of the decolorization reaction tank.

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