Device for continuously separating glycerol layer of crude methyl ester

Abstract

The utility model provides a crude methyl ester glycerol layer continuous separation device which comprises a base, the top of the base is fixedly connected with a rack, and the top of the rack is fixedly connected with a settling tank. Mixed liquid is fed through the mixed liquid feeding pipe, the mixed liquid can enter the space between the multiple separation pipes, the actuator controls the electric heating wire to heat, the temperature ranges from 40 DEG C to 60 DEG C, then the separation pipes can heat the mixed liquid, and the temperature does not exceed 60 DEG C; and the motor works to drive a connecting plate to rotate through a first gear, a second gear, a magnet and a magnetic block, so that a separation pipe rotates, and the separation pipe is separated from the crude fatty acid methyl ester, so that the separation effect of the crude fatty acid methyl ester in the crude fatty acid methyl ester is improved. And the mixed liquid in the plurality of separation pipes can be thrown out through gaps among the plurality of separation pipes and enters the settling tank.

Description

TECHNICAL FIELD

[0001] The utility model relates to a device for continuously separating crude methyl ester glycerol layer belongs to the biodiesel engineering field. BACKGROUND

[0002] In the fatty acid methyl ester production process, the neutral oil component of raw materials reacts with methanol under the catalysis of KOH to generate fatty acid methyl ester and byproduct glycerol. The byproduct glycerol is separated by natural sedimentation because its density is greater than that of the crude product. Then, a device for continuously separating crude methyl ester glycerol layer is used. The principle of the device is that a first discharge port for discharging crude fatty acid methyl ester and a second discharge port for discharging crude glycerol are arranged on the side wall of a box. A left frame and a right frame are arranged inside the box, and an inclined pipe filler is arranged between the left frame and the right frame. The inclined pipe filler divides the mixed liquid into many small units to accelerate the stratification of the mixed liquid.

[0003] In the prior art, the mixed liquid passes through several inclined pipes before being precipitated. The several inclined pipes divide the mixed liquid into several small units to accelerate the stratification of the mixed liquid. However, because the mixed liquid is viscous, the flow of the mixed liquid in the inclined pipe is limited by the pipe diameter constraint, which leads to a significant increase in frictional resistance and causes flow stagnation and local blockage. Therefore, the feeding efficiency of the mixed liquid is reduced. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a device for continuously separating crude methyl ester glycerol layer to solve the problems in the background art. The utility model can prevent local blockage when the mixed liquid is divided into multiple small units and improve the feeding efficiency of the mixed liquid.

[0005] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a device for continuously separating crude methyl ester glycerol layer, comprising a base, a rack fixedly connected to the top of the base, a settling tank fixedly connected to the top of the rack, a glycerol discharge end fixedly connected to the bottom of the settling tank, and a glycerol receiving component arranged on the top of the base.

[0006] A mixed liquid feeding pipe is fixedly sleeved to the inner top wall of the settling tank. A connecting plate is rotatably connected to the inner wall of the mixed liquid feeding pipe. A magnetic block is fixedly connected to the outer wall of the connecting plate. A separation pipe is fixedly connected to the inner wall of the connecting plate. A bottom plate is fixedly connected to the bottom of the separation pipe. A heating component is arranged on the bottom of the bottom plate. A driving component is arranged on the outer wall of the settling tank.

[0007] Further, a crude fatty acid methyl ester discharge end is arranged on the top of the settling tank. An installation flange is fixedly connected to the top of the crude fatty acid methyl ester discharge end.

[0008] Further, the driving component comprises a support fixedly connected to the outer wall of the settling tank, and a motor fixedly connected to one side of the support, an output end of the motor is fixedly connected with a first gear through a shaft coupling, a second gear is rotatably sleeved to the outer wall of the mixed liquid feeding pipe, the second gear is meshingly connected with the first gear, a magnet is fixedly connected to the inner wall of the second gear, a second slide is formed in the outer wall of the mixed liquid feeding pipe, and the magnet is slidably connected with the second slide, a first slide is formed in the inner wall of the mixed liquid feeding pipe, and the outer wall of the magnetic block is slidably connected with the inner wall of the first slide, and the magnetic block and the magnet are attracted to each other.

[0009] Further, the connecting plate is a "circular ring" structure, the first slide is an annular structure, and the second slide has the same shape as the first slide.

[0010] Further, the heating component comprises a sealing box fixedly connected to the bottom of the bottom plate, an actuator is fixedly connected to the inner wall of the sealing box, and an electric heating wire is arranged on one side of the actuator, a groove is formed in the inside of the separation pipe, and the outer wall of the electric heating wire is fixedly connected with the inner wall of the groove.

[0011] Further, the glycerol receiving component comprises a fixing frame fixedly connected to the top of the base, a glycerol receiving tank is fixedly connected to the inner wall of the fixing frame, a receiving end is arranged at the top of the glycerol receiving tank, a conveying pipe is fixedly installed on the inner wall of the receiving end, a second glycerol discharging pipe is fixedly connected to one end of the conveying pipe, a connecting pipe is fixedly connected to one end of the second glycerol discharging pipe, a first glycerol discharging pipe is fixedly connected to one end of the connecting pipe, and the top of the first glycerol discharging pipe is fixedly connected with the inner wall of the glycerol discharging end.

[0012] Further, the conveying pipe is an "L" shaped structure, and the bottom of the glycerol receiving tank is provided with a glycerol discharging end.

[0013] The utility model discloses beneficial effects:

[0014] 1. The mixed liquid is fed through the mixed liquid feeding pipe, the mixed liquid enters between the plurality of separation pipes, the actuator controls the electric heating wire to heat and the temperature is between forty degrees to sixty degrees, and then the separation pipe can heat the mixed liquid, the temperature of which does not exceed sixty degrees, thereby increasing the density difference between glycerol and crude fatty acid methyl ester in the mixed liquid, and the esterification reaction does not occur, thereby reducing the viscosity of the mixed liquid, and the work of the motor drives the connecting plate to rotate through the first gear, the second gear, the magnet and the magnetic block, thereby making the separation pipe rotate, the mixed liquid in the plurality of separation pipes is thrown out through the gap between the plurality of separation pipes and enters the inside of the settling tank, thereby realizing that the mixed liquid does not appear local blockage when being divided into a plurality of small units, and improving the feeding efficiency of the mixed liquid.

[0015] 2. After the mixture enters the settling tank, glycerol will settle to the bottom due to its density difference. The presence of crude fatty acid methyl ester creates static pressure, pushing the glycerol from the bottom to the first glycerol discharge pipe. This continues until the second glycerol discharge pipe is full of glycerol, at which point the static pressure between the settling tank and the first and second glycerol discharge pipes reaches equilibrium. As the settling process continues, a layer of glycerol gradually accumulates at the bottom of the settling tank, causing the static pressure to increase. At this point, the glycerol in the second glycerol discharge pipe will be discharged, and the glycerol in the settling tank will be transferred to the first glycerol discharge pipe, achieving pressure balance and continuous discharge separation. This further meets the operational requirements of the device and improves its practicality. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a device for continuous separation of crude methyl ester glycerol layer according to the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the settling tank in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the mixture feed pipe in this utility model;

[0020] Figure 4 This is a schematic diagram of the separation tube in this utility model;

[0021] Figure 5 This is a front sectional view of the separation tube of this utility model.

[0022] In the diagram: 1. Base; 2. Frame; 3. Settling tank; 4. Crude fatty acid methyl ester discharge end; 5. Glycerin discharge end; 6. Fixing frame; 61. Glycerin receiving tank; 62. Receiving end; 63. Glycerin discharge end; 64. Conveying pipe; 65. First glycerin discharge pipe; 66. Connecting pipe; 67. Second glycerin discharge pipe; 7. Mixture feed pipe; 8. First slide rail; 9. Connecting plate; 91. Magnetic block; 92. Separating pipe; 93. Base plate; 10. Motor; 11. Sealing box; 111. Actuator; 112. Groove; 113. Heating wire; 12. First gear; 13. Second gear; 14. Second slide rail. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please seeFigures 1-5 The utility model provides a technical scheme: a device for continuous separation of crude methyl ester glycerol layer, including base 1, the top of base 1 is fixedly connected with rack 2, the top of rack 2 is fixedly connected with settling tank 3, the bottom of settling tank 3 is fixedly connected with glycerol discharge end 5, the top of base 1 is provided with glycerol receiving component.

[0025] The inner top wall of settling tank 3 is fixedly sleeved with mixed liquid feed pipe 7, the inner wall of mixed liquid feed pipe 7 is rotatably connected with connecting plate 9, the outer wall of connecting plate 9 is fixedly connected with magnetic block 91, the inner wall of connecting plate 9 is fixedly connected with separation pipe 92, the bottom of separation pipe 92 is fixedly connected with bottom plate 93, the number of separation pipe 92 is multiple, there is spacing between multiple separation pipes 92, the bottom of bottom plate 93 is provided with heating component, the outer wall of settling tank 3 is provided with driving component.

[0026] Please refer to Figures 1-2 The top of settling tank 3 is provided with crude fatty acid methyl ester discharge end 4, the top of crude fatty acid methyl ester discharge end 4 is fixedly connected with mounting flange, the inner wall of crude fatty acid methyl ester discharge end 4 is connected with the crude fatty acid methyl ester discharge pipe outside, and then the crude fatty acid methyl ester separated in the settling tank 3 can be discharged through crude fatty acid methyl ester discharge end 4.

[0027] Please refer to Figures 1-4 The driving component includes support and second gear 13, the top of second gear 13 is provided with circular channel, and then second gear 13 can be sleeved outside mixed liquid feed pipe 7, the outer wall of settling tank 3 is fixedly connected with support, and the side of support is fixedly connected with motor 10, the output end of motor 10 is fixedly connected with first gear 12 through shaft coupling, second gear 13 is rotatably sleeved on the outer wall of mixed liquid feed pipe 7, second gear 13 is meshingly connected with first gear 12, the inner wall of second gear 13 is fixedly connected with magnet, the outer wall of mixed liquid feed pipe 7 is provided with second slide 14, and the magnet is slidably connected with second slide 14, the inner wall of mixed liquid feed pipe 7 is provided with first slide 8, the outer wall of magnetic block 91 is slidably connected with the inner wall of first slide 8, the magnet and magnetic block 91 are attracted to each other, connecting plate 9 is "round ring" structure, first slide 8 is annular structure, the shape of second slide 14 is same with the shape of first slide 8, start motor 10, and motor 10 will drive second gear 13 to rotate, and then first gear 12 can be driven to rotate on mixed liquid feed pipe 7 through second gear 13, and then connecting plate 9 can be driven to rotate through magnet and magnetic block 91, and then separation pipe 92 rotates, and the mixed liquid in multiple separation pipes 92 can be thrown out through the gap between multiple separation pipes 92 and enter the inside of settling tank 3.

[0028] Please refer to Figures 1-5The heating component includes a sealed box 11 fixedly connected to the bottom of the bottom plate 93, an actuator 111 fixedly connected to the inner wall of the sealed box 11, an electric heating wire 113 arranged on one side of the actuator 111, and a recess 112 formed in the inside of the separation pipe 92. The number of the electric heating wires 113 is multiple, the multiple electric heating wires 113 extend to the inside of the recess 112, and the outer wall of the electric heating wire 113 is fixedly connected to the inner wall of the recess 112. The actuator 111 is an existing device, the model of which is “AM-DR57 / 58”. The actuator 111 can control the electric heating wire 113 to heat and control the temperature of the electric heating wire 113. The electric heating wire 113 is heated to a temperature between forty degrees and sixty degrees. The separation pipe 92 can heat the mixed solution, and the temperature of the mixed solution does not exceed sixty degrees. Thus, the density difference between the glycerol and the crude fatty acid methyl ester in the mixed solution is increased, and the viscosity of the mixed solution is reduced, thereby accelerating the speed of the separation.

[0029] Please refer to Figure 1 The glycerol receiving component includes a fixed frame 6 fixedly connected to the top of the base 1, a glycerol receiving tank 61 fixedly connected to the inner wall of the fixed frame 6, a receiving end 62 arranged on the top of the glycerol receiving tank 61, a conveying pipe 64 fixedly installed on the inner wall of the receiving end 62, a second glycerol discharging pipe 67 fixedly connected to one end of the conveying pipe 64, a connecting pipe 66 fixedly connected to one end of the second glycerol discharging pipe 67, a first glycerol discharging pipe 65 fixedly connected to one end of the connecting pipe 66, and a glycerol discharging end 5 fixedly connected to the top of the first glycerol discharging pipe 65. The conveying pipe 64 has an “L” shape structure. The glycerol discharging end 63 is arranged on the bottom of the glycerol receiving tank 61. After the mixed solution enters the settling tank 3, the glycerol will be settled at the bottom due to the density difference. The crude fatty acid methyl ester has a certain liquid level, and the static pressure is formed to press the glycerol at the bottom to the first glycerol discharging pipe 65. Until the second glycerol discharging pipe 67 is filled with glycerol, the static pressure of the settling tank 3 and the first glycerol discharging pipe 65 and the second glycerol discharging pipe 67 reaches balance. With the continuous proceeding of the settling process, the glycerol layer is gradually accumulated at the bottom of the settling tank 3, and the static pressure of the settling tank 3 becomes larger. At this time, the glycerol in the second glycerol discharging pipe 67 is discharged, and the glycerol in the settling tank 3 is transferred to the first glycerol discharging pipe 65, so as to balance the pressure on the left and right sides and continuously discharge and separate.

[0030] Working principle: first, the mixed solution is fed through the mixed solution feed pipe 7, the mixed solution will enter between the plurality of separation pipes 92, start the motor 10, the work of the motor 10 will drive the connecting plate 9 to rotate through the first gear 12, the second gear 13, the magnet and the magnetic block 91, in turn make the separation pipe 92 rotate, the mixed solution inside the plurality of separation pipes 92 will be thrown out through the gap between the plurality of separation pipes 92 and enter the inside of the settling tank 3, in this process, the actuator 111 controls the heating of the heating wire 113 and the temperature is between forty degrees and sixty degrees, in turn, the separation pipe 92 can heat the mixed solution, its temperature will not exceed sixty degrees, in turn, can increase the density difference between glycerol and crude fatty acid methyl ester in the mixed solution, and will not occur esterification reaction, reduce the viscosity of the mixed solution, accelerate the speed of delamination;

[0031] Secondly, after the mixed solution enters the settling tank 3, the glycerol will be settled at the bottom due to the density difference, and the crude fatty acid methyl ester will form a static pressure at a certain liquid level to press the glycerol at the bottom to the first glycerol discharge pipe 65, until the second glycerol discharge pipe 67 is full of glycerol, then the static pressure of the settling tank 3 and the first glycerol discharge pipe 65 and the second glycerol discharge pipe 67 reaches balance, with the continuation of the settling process, the glycerol layer gradually accumulates at the bottom of the settling tank 3, resulting in the increase of the static pressure of the settling tank 3, at this time, the glycerol in the second glycerol discharge pipe 67 will be discharged, and the glycerol in the settling tank 3 will be transferred to the first glycerol discharge pipe 65, realizing the balance of left and right pressure and continuous discharge and separation;

[0032] Finally, the inner wall height of the settling tank 3 is H1, the height of the first glycerol discharge pipe 65 and the second glycerol discharge pipe 67 is H2 and H3 respectively, the density of crude fatty acid methyl ester is pcrude methyl ester, and the density of glycerol is pglycerol, the relationship between the lengths of H1, H2 and H3 is: pcrude methyl ester*H1+pglycerol*H2=pglycerol*H3, after the device is configured to meet the above formula, the continuous and stable separation of crude methyl ester and glycerol can be realized.

[0033] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments which can be understood by those skilled in the art.

Claims

1. A device for the continuous separation of a crude methyl ester glycerol layer comprising a base (1), characterised in that: The top of the base (1) is fixedly connected with a rack (2), the top of the rack (2) is fixedly connected with a settling tank (3), the bottom of the settling tank (3) is fixedly connected with a glycerol discharge end (5), and the top of the base (1) is provided with a glycerol receiving component; The inner top wall of the settling tank (3) is fixedly sleeved with a mixed liquid feeding pipe (7), the inner wall of the mixed liquid feeding pipe (7) is rotatably connected with a connecting plate (9), the outer wall of the connecting plate (9) is fixedly connected with a magnetic block (91), the inner wall of the connecting plate (9) is fixedly connected with a separation pipe (92), the bottom of the separation pipe (92) is fixedly connected with a bottom plate (93), the bottom of the bottom plate (93) is provided with a heating component, and the outer wall of the settling tank (3) is provided with a driving component.

2. A device for continuous separation of a crude methyl ester glycerol layer according to claim 1, characterized in that: The top of the settling tank (3) is provided with a crude fatty acid methyl ester discharge end (4), and the top of the crude fatty acid methyl ester discharge end (4) is fixedly connected with a mounting flange.

3. A device for continuous separation of a crude methyl ester glycerol layer according to claim 1, characterized in that: The driving component comprises a bracket and a second gear (13), the bracket is fixedly connected to the outer wall of the settling tank (3), one side of the bracket is fixedly connected with a motor (10), the output end of the motor (10) is fixedly connected with a first gear (12) through a shaft coupling, the second gear (13) is rotatably sleeved on the outer wall of the mixed liquid feeding pipe (7), the second gear (13) is meshingly connected with the first gear (12), the inner wall of the second gear (13) is fixedly connected with a magnet, the outer wall of the mixed liquid feeding pipe (7) is provided with a second slide (14), and the magnet is slidably connected with the second slide (14), the inner wall of the mixed liquid feeding pipe (7) is provided with a first slide (8), and the outer wall of the magnetic block (91) is slidably connected with the inner wall of the first slide (8), the magnetic block (91) and the magnet are attracted to each other.

4. A device for continuous separation of a crude methyl ester glycerol layer according to claim 3, characterized in that: The connecting plate (9) is a "circular ring" structure, the first slide (8) is an annular structure, and the shape of the second slide (14) is the same as that of the first slide (8).

5. A device for continuous separation of a crude methyl ester glycerol layer according to claim 1, characterized in that: The heating component comprises a sealing box (11) fixedly connected to the bottom of the bottom plate (93), the inner wall of the sealing box (11) is fixedly connected with an actuator (111), one side of the actuator (111) is provided with an electric heating wire (113), the inside of the separation pipe (92) is provided with a groove (112), and the outer wall of the electric heating wire (113) is fixedly connected with the inner wall of the groove (112).

6. A device for continuous separation of a crude methyl ester glycerol layer according to claim 1, characterized in that: The glycerol receiving component comprises a fixing frame (6) fixedly connected to the top of the base (1), the inner wall of the fixing frame (6) is fixedly connected with a glycerol receiving tank (61), the top of the glycerol receiving tank (61) is provided with a receiving end (62), the inner wall of the receiving end (62) is fixedly provided with a conveying pipe (64), one end of the conveying pipe (64) is fixedly connected with a second glycerol discharge pipe (67), one end of the second glycerol discharge pipe (67) is fixedly connected with a connecting pipe (66), one end of the connecting pipe (66) is fixedly connected with a first glycerol discharge pipe (65), and the top of the first glycerol discharge pipe (65) is fixedly connected with the inner wall of the glycerol discharge end (5).

7. A device for continuous separation of a crude methyl ester glycerol layer according to claim 6, characterized in that: The conveying pipe (64) is in "L" shape structure, and the bottom of the glycerol receiving tank (61) is provided with a glycerol discharging end (63).

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