CN117844572A - A waste animal and vegetable oil alcoholysis esterification device and its implementation method - Google Patents

Abstract

The invention provides an alcoholysis esterification device of waste animal and vegetable oil and a method for implementing the same, which belongs to the technical field of alcoholysis esterification of oil and vegetable oil, and comprises a mixing drum, wherein oil and methanol solution are added into an inner cavity of the mixing drum, a cover plate is arranged on the upper end surface of the mixing drum, and the upper end surface of the cover plate is communicated with a condenser pipe, and the device further comprises: the output shaft end of the driving motor penetrates through the mixing cylinder to be fixedly connected with a center rod, and a plurality of guide plates are annularly arranged on the side wall of the center rod; the side wall of each guide plate is provided with a stirring mechanism; the inner cavity of each guide plate is provided with a guide mechanism; the adsorption mechanism is arranged on the side wall of the mixing drum. According to the invention, the guiding mechanism and the adsorption mechanism are used for adsorbing the floating foam of the grease in the mixing drum, and the stirring mechanism is used for stirring the grease in the mixing drum.

Description

A waste animal and vegetable oil alcoholysis esterification device and its implementation method

Technical Field

The invention relates to the technical field of alcoholysis and esterification of fats and oils, and in particular to a device for alcoholysis and esterification of waste animal and plant fats and oils and an implementation method thereof.

Background technique

As the amount of food waste increases, people are more and more deeply involved in the treatment of food waste. The production of biodiesel using the oil from food waste is a typical example of food waste recycling and is currently being widely studied. In the prior art, the production methods of biodiesel can be mainly divided into two categories: physical method and chemical method. Conventional physical methods include direct mixing method and microemulsification method, and chemical methods include cracking method, esterification method and transesterification method. The esterification method is to make fatty acids react with methanol or ethanol under acid catalysis to produce fatty acid methyl (ethyl) ester. The acidified oil produced in the oil processing process is used as the raw material, which contains both fatty acids and fatty acid glycerides. The reaction is generally carried out at the reflux temperature of methanol, and can also be carried out in a pressurized reactor. The methyl ester generated during the reaction is easily separated from water and sulfuric acid. Therefore, when using acidified oil as a raw material to produce biodiesel, the transesterification reaction is generally continued.

However, the existing waste animal and plant oil alcoholysis esterification devices usually only use a single stirring rod to stir and mix the oil and methanol when mixing them, and cannot effectively mix the solution on the outside of the mixing cylinder with the solution on the inside, and the stirring efficiency is poor. At the same time, during the oil alcoholysis esterification reaction, a large amount of oil foam accumulates in the upper liquid surface solution, which will affect the quality of the oil when it is discharged if it is not collected and processed in time. Therefore, how to invent a waste animal and plant oil alcoholysis esterification device and its implementation method to improve these problems has become a problem that needs to be solved urgently by those skilled in the art.

Summary of the invention

In order to make up for the above shortcomings, the present invention provides a waste animal and plant oil alcoholysis and esterification device and its implementation method, aiming to improve the problem that the existing steel drum prefabricated plates are easily damaged by collision with the oil alcoholysis and esterification due to their own excessive impact force, and the surface of the steel drum prefabricated plates will be scratched due to the presence of debris when two steel drum prefabricated plates slide.

The present invention is achieved in that:

The present invention provides a waste animal and plant oil alcoholysis esterification device and an implementation method thereof, comprising a mixing cylinder, the inner cavity of which is added with oil and methanol solution, a cover plate is placed on the upper end surface of the mixing cylinder, the upper end surface of the cover plate is connected with a condenser, and further comprising:

A driving motor is fixedly connected to the lower part of the mixing cylinder through a frame, the output shaft end of the driving motor passes through the mixing cylinder and is fixedly connected to a center rod, and a plurality of guide plates are arranged in a circular array on the side wall of the center rod;

A stirring mechanism, wherein the side wall of each guide plate is provided with a stirring mechanism, and the stirring mechanism is used to stir the grease in the mixing barrel;

A guide mechanism, wherein the inner cavity of each guide plate is provided with a guide mechanism, and the guide mechanism is used to gather the floating foam on the upper layer of the grease;

Adsorption mechanism: the side wall of the mixing cylinder is provided with an adsorption mechanism; the adsorption mechanism is used to adsorb the floating foam of grease in the mixing cylinder.

Preferably, the guide mechanism includes a support frame, a guide impeller, a guide frame and a guide frame, the guide plate is fixedly connected to the center rod, a guide frame is arranged on the left side of the inner cavity of the guide plate, the front and rear sides of the inner cavity side walls of the guide frame are fixedly connected to the support frame, and the inner cavity of the support frame is rotatably connected to the guide impeller.

By adopting the technical solution, the grease foam floating on the liquid surface can be gathered toward the guide frame.

Preferably, the front and rear side walls of the guide plate are provided with guide grooves, the guide grooves are arranged in a concave shape on the guide plate and are at the lowest position at the guide frame.

Preferably, the stirring mechanism includes a transmission worm, a transmission worm wheel, a rotating rod, a stirring blade, a scraper plate and a mounting seat, the front end surface of the guide plate is fixedly connected to the mounting seat on the upper and lower sides, a rotating rod is rotatably connected between the mounting seats on the upper and lower sides, and the lower end surface of the rotating rod is fixedly connected to the stirring blade.

By adopting the above technical solution, the stirring blades can be rotated in the mixing barrel to achieve mixing of the grease and the methanol solution.

Preferably, the front end face of the guide impeller is fixedly connected to a transmission worm, the side wall of the rotating rod is fixedly connected to a transmission worm wheel, the transmission worm wheel is meshingly connected to the transmission worm, and the outer side of the lower end face of the guide plate is fixedly connected to a scraper plate, and the side wall of the scraper plate is in contact with the inner wall of the mixing barrel.

By adopting the above technical solution, the grease adhering to the side wall of the mixing barrel can be scraped off, thereby avoiding affecting the quality of the grease when it is discharged.

Preferably, the mixing cylinder is hollow, and an electric heating plate is fixedly installed on the bottom surface of the inner cavity of the hollow cavity, the hollow cavity of the mixing cylinder is filled with clean water, a water adding pipe is fixedly connected to the outer wall of the mixing cylinder, and the water adding pipe is connected to the hollow cavity, and a liquid outlet pipe is fixed and connected to the lower end surface of the mixing cylinder, and the liquid outlet pipe is connected to the inner cavity of the mixing cylinder.

By adopting the above technical solution, the reacted grease can be discharged from the liquid outlet pipe.

Preferably, the adsorption mechanism includes an adsorption box, a piston plate, a return spring, a piston column, a collecting ball, an adsorption tube, an adsorption cover and an outlet pipe. The upper part of the inner cavity of the adsorption box is slidably connected to the piston plate, the lower end surface of the piston plate is fixedly connected to the piston column, and the lower part of the outer wall of the piston column is threadedly connected to the collecting ball.

By adopting the above technical solution, the collecting balls can be quickly replaced, thereby improving the work efficiency of workers.

Preferably, a return spring is fixedly connected to the upper end surface of the piston plate, and the other end of the return spring is fixedly connected to the top surface of the inner cavity of the adsorption box. The piston column is slidably connected to the adsorption box, and the piston column is connected to the collecting ball. The piston column is hollow, and a plurality of arc grooves are provided on the side wall of the piston column. The arc grooves are connected to the piston column like a hollow cavity. When the piston column is at its lowest, the arc grooves are just at the side wall of the lower end surface of the adsorption box. A hemisphere is fixedly connected to the right side of the upper end surface of the guide plate, and the hemisphere is slidably connected to the collecting ball.

Preferably, an adsorption tube is fixed on and connected to the right side wall of the adsorption box, a one-way water valve opening to the inner cavity of the adsorption box is provided at the connection point between the adsorption tube and the adsorption box, an adsorption cover is fixedly connected to the lower end face of the adsorption tube, an air outlet pipe is fixed on and connected to the left side of the front and rear end faces of the adsorption box, and a one-way air valve with an outlet to the outside is provided at the connection point between the air outlet pipe and the adsorption box.

A method for implementing a waste animal and vegetable oil alcoholysis and esterification device comprises the following steps:

Step 1: Use an external water pump to add an appropriate amount of clean water from the water supply pipe into the hollow cavity of the mixing barrel, and then start the electric heating plate to maintain the water temperature at 60°C.

Step 2: Add an appropriate amount of grease and methanol solution to the inner cavity of the mixing cylinder, and then start the drive motor to make the central rod drive the stirring mechanism to rotate in the mixing cylinder to promote the reaction of the grease and methanol solution.

Step 3: While the stirring mechanism is mixing and stirring the grease and the methanol solution, the grease foam on the upper layer of the liquid surface can be adsorbed and retained through the guiding mechanism and the adsorption mechanism.

The beneficial effects of the present invention are:

When the hemisphere contacts the collecting ball, the hemisphere can squeeze the collecting ball to make the piston column move toward the upper part of the inner cavity of the adsorption box. At this time, the piston plate will also be moved upward. Under the cooperation of the adsorption mechanism, the grease foam floating on the liquid surface can be adsorbed into the inner cavity of the adsorption box. The grease foam will settle under the action of its own gravity and accumulate at the bottom of the inner cavity of the adsorption box. When the hemisphere is out of contact with the collecting ball, the squeezing force of the hemisphere is lost. At this time, the reset spring will be reset to make the piston column move downward. At this time, the arc groove on the piston column is just at the bottom of the inner cavity of the adsorption box. The grease foam deposited at the bottom of the adsorption box can enter the inner cavity of the piston column from the arc groove and finally be deposited in the collecting ball, while the excess air in the adsorption box can be discharged from the air outlet pipe. Then, through the above, the device can replace manual removal of the grease foam floating on the liquid surface, avoids the discharge of grease and the grease foam together, affects the quality of grease, and improves the practicality of the whole device.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the internal structure of a mixing barrel of a waste animal and vegetable oil alcoholysis and esterification device and an implementation method thereof provided in an embodiment of the present invention;

2 is a schematic structural diagram of the connection between the center rod and the guide plate of a waste animal and plant oil alcoholysis and esterification device and its implementation method provided in an embodiment of the present invention;

FIG3 is a schematic diagram of the enlarged structure of the region in FIG2 of a waste animal and plant oil alcoholysis and esterification device and its implementation method provided in an embodiment of the present invention;

4 is a schematic diagram of a partial cross-sectional structure of a waste animal and vegetable oil alcoholysis esterification device and an implementation method thereof provided in an embodiment of the present invention;

5 is a schematic structural diagram of a waste animal and plant oil alcoholysis esterification device and an implementation method thereof provided in an embodiment of the present invention;

6 is a bottom-up schematic diagram of the overall structure of a waste animal and vegetable oil alcoholysis and esterification device and its implementation method provided in an embodiment of the present invention;

7 is a schematic diagram showing the structure of an adsorption box of a waste animal and plant oil alcoholysis and esterification device and an implementation method thereof provided in an embodiment of the present invention;

8 is a schematic cross-sectional view of the adsorption box of a waste animal and plant oil alcoholysis and esterification device and its implementation method provided in an embodiment of the present invention;

9 is a schematic diagram of an adsorption box in different states of a waste animal and plant oil alcoholysis and esterification device and an implementation method thereof provided in an embodiment of the present invention.

In the figure: 1. mixing cylinder; 11. electric heating plate; 12. water supply pipe; 13. liquid outlet pipe; 2. cover plate; 3. condenser; 4. drive motor; 5. center rod; 6. guide plate; 61. hemisphere; 7. stirring mechanism; 71. transmission worm; 72. transmission worm gear; 73. rotating rod; 74. stirring blade; 75. scraper plate; 76. mounting seat; 8. guide mechanism; 81. support frame; 82. guide impeller; 83. guide groove; 84. guide frame; 9. adsorption mechanism; 91. adsorption box; 92. piston plate; 93. reset spring; 94. piston column; 941. arc groove; 95. collecting ball; 96. adsorption tube; 97. adsorption cover; 98. outlet pipe.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Example

1-9, a waste animal and plant oil alcoholysis esterification device and its implementation method include a mixing barrel 1, the inner cavity of the mixing barrel 1 is added with oil and methanol solution, the upper end surface of the mixing barrel 1 is placed with a cover plate 2, the upper end surface of the cover plate 2 is connected with a condenser 3, and further includes:

A driving motor 4 is fixedly connected to the lower part of the mixing drum 1 through a frame, and an output shaft end of the driving motor 4 passes through the mixing drum 1 and is fixedly connected to a center rod 5, and a plurality of guide plates 6 are arranged in a circular array on the side wall of the center rod 5;

A stirring mechanism 7, each guide plate 6 is provided with a stirring mechanism 7 on its side wall, and the stirring mechanism 7 is used to stir the grease in the mixing barrel 1;

A guide mechanism 8, wherein the inner cavity of each guide plate 6 is provided with a guide mechanism 8, and the guide mechanism 8 is used to gather the floating foam on the upper layer of the grease;

Adsorption mechanism 9 : An adsorption mechanism 9 is disposed on the side wall of the mixing cylinder 1 ; the adsorption mechanism 9 is used to absorb the floating foam of the grease in the mixing cylinder 1 .

Referring to Figures 1-9, further; the guide mechanism 8 includes a support frame 81, a guide impeller 82, a guide groove 83 and a guide frame 84, the guide plate 6 is fixedly connected to the center rod 5, a guide frame 84 is provided on the left side of the inner cavity of the guide plate 6, and the inner cavity side walls of the guide frame 84 are fixedly connected to the support frame 81 on both sides, and the inner cavity of the support frame 81 is rotatably connected to the guide impeller 82, and the front and rear side walls of the guide plate 6 are provided with a guide groove 83, which is concavely arranged on the guide plate 6 and is at the lowest position at the guide frame 84, and the stirring mechanism 7 includes a transmission worm 71, a transmission worm wheel 72, a rotation The movable rod 73, the stirring blade 74, the scraper plate 75 and the mounting seat 76, the front end surface of the guide plate 6 is fixedly connected with the mounting seat 76 on the upper and lower sides, the rotating rod 73 is rotatably connected between the mounting seats 76 on the upper and lower sides, the lower end surface of the rotating rod 73 is fixedly connected with the stirring blade 74, the front end surface of the guide impeller 82 is fixedly connected with the transmission worm 71, the side wall of the rotating rod 73 is fixedly connected with the transmission worm gear 72, the transmission worm gear 72 is meshed with the transmission worm 71, the outer side of the lower end surface of the guide plate 6 is fixedly connected with the scraper plate 75, and the side wall of the scraper plate 75 is in contact with the inner wall of the mixing barrel 1.

It should be noted that: the guide impeller 82 will drive the transmission worm 71 to rotate. Since the transmission worm wheel 72 is meshed and connected with the transmission worm 71, the rotating rod 73 can drive the stirring blade 74 to rotate in the inner cavity of the mixing barrel 1. At this time, the stirring blade 74 can rotate along the central rod 5 while performing orbital stirring, and can effectively flow the grease and methanol solution on the outside of the mixing barrel 1 into the mixing barrel 1, so that the whole device can achieve the function of improving the stirring effect.

At the same time, when the guide plate 6 revolves along the center rod 5, the guide grooves 83 are arranged on the front and rear side walls of the guide plate 6, so that the grease foam floating on the liquid surface can be moved to the guide frame 84 to form a circular track.

Referring to Figures 1-9, further; the mixing cylinder 1 is hollow, and an electric heating plate 11 is fixedly installed on the bottom surface of the inner cavity of the hollow cavity, the hollow cavity of the mixing cylinder 1 is filled with clean water, a water adding pipe 12 is fixedly connected to the outer wall of the mixing cylinder 1, and the water adding pipe 12 is connected to the hollow cavity, the lower end surface of the mixing cylinder 1 is fixed and connected with a liquid outlet pipe 13, and the liquid outlet pipe 13 is connected to the inner cavity of the mixing cylinder 1.

It should be noted that: after using an external water pump to add an appropriate amount of clean water from the water adding pipe 12 into the hollow cavity of the mixing barrel 1, and then starting the electric heating plate 11 to maintain the water temperature at 60°C, after adding an appropriate amount of grease and methanol solution to the inner cavity of the mixing barrel 1, the driving motor 4 is started to drive the center rod 5 to drive the guide plate 6 to rotate in the inner cavity of the mixing barrel 1. It should be noted that: at this time, the guide plate 6 is just below the liquid surface; when the guide plate 6 rotates, under the resistance of the grease and methanol solution inside the mixing barrel 1, the guide impeller 82 will rotate, thereby simply realizing the mixing function of the grease and methanol solution in a small area.

1-8, further; the adsorption mechanism 9 includes an adsorption box 91, a piston plate 92, a return spring 93, a piston column 94, a collecting ball 95, an adsorption tube 96, an adsorption cover 97 and an exhaust pipe 98, the piston plate 92 is slidably connected to the upper part of the inner cavity of the adsorption box 91, the lower end surface of the piston plate 92 is fixedly connected to the piston column 94, the lower part of the outer wall of the piston column 94 is threadedly connected to the collecting ball 95, the upper end surface of the piston plate 92 is fixedly connected to the return spring 93, the other end of the return spring 93 is fixedly connected to the top surface of the inner cavity of the adsorption box 91, the piston column 94 is slidably connected to the adsorption box 91, the piston column 94 is connected to the collecting ball 95, the piston column 94 is hollow, and the side wall of the piston column 94 is provided with a There are multiple arc grooves 941, and the arc grooves 941 are connected to the piston column 94 as a hollow cavity. When the piston column 94 is at the lowest position, the arc grooves 941 are just at the side wall of the lower end surface of the adsorption box 91. A hemisphere 61 is fixedly connected to the right side of the upper end surface of the guide plate 6, and the hemisphere 61 is slidably connected to the collecting ball 95. An adsorption tube 96 is fixed and connected to the right side wall of the adsorption box 91. A one-way water valve opening to the inner cavity of the adsorption box 91 is provided at the connection between the adsorption tube 96 and the adsorption box 91. An adsorption cover 97 is fixedly connected to the lower end surface of the adsorption tube 96. An air outlet pipe 98 is fixed on the left side of the front and rear end surfaces of the adsorption box 91 and is connected. A one-way air valve with an outlet to the outside is provided at the connection between the air outlet pipe 98 and the adsorption box 91.

It should be noted that: when the hemispherical body 61 contacts the collecting ball 95, the hemispherical body 61 can squeeze the collecting ball 95 to make the piston column 94 move toward the upper part of the inner cavity of the adsorption box 91 (as shown in FIG8 ). At this time, the piston plate 92 will also move upward, and the return spring 93 will be in a compressed state. The total capacity of the lower part of the inner cavity of the adsorption box 91 will be increased, and the internal pressure will be reduced. Under the action of the one-way water valve provided at the adsorption tube 96, the grease foam floating on the liquid surface will be able to be adsorbed into the inner cavity of the adsorption box 91. At this time, the grease foam will precipitate under the action of its own gravity and accumulate at the bottom of the inner cavity of the adsorption box 91. When the hemispherical body 61 is out of contact with the collecting ball 95, the squeezing force of the hemispherical body 61 is lost. At this time, the return spring 93 will be reset, so that the piston column 94 moves downward (as shown in FIG9 ). At this time, the arc on the piston column 94 The groove 941 is just at the bottom of the inner cavity of the adsorption box 91. The grease foam deposited at the bottom of the adsorption box 91 will be able to enter the inner cavity of the piston rod 94 from the arc groove 941, and finally deposited in the collecting ball 95. At the same time, as the total capacity of the lower part of the inner cavity of the adsorption box 91 will be reduced, the internal pressure will be increased, and the excess air in the adsorption box 91 will be able to be discharged from the outlet pipe 98. It should be noted that, since the grease foam is deposited at the bottom of the inner cavity of the adsorption box 91 at this time, the gas discharged from the outlet pipe 98 is not enough to overcome the gravity of the grease foam and drive it to be ejected from the outlet pipe 98; furthermore, through the above, the present device can replace manual removal of the grease foam floating on the liquid surface, avoiding the discharge of the grease and the grease foam together, which affects the quality of the grease, and at the same time, greatly improves the work efficiency of the workers.

The working principle of the waste animal and vegetable oil alcoholysis esterification device and its implementation method:

After adding a proper amount of clean water from the water adding pipe 12 into the hollow cavity of the mixing barrel 1 by using an external water pump, the water temperature is maintained at 60°C by starting the electric heating plate 11, and after adding a proper amount of grease and methanol solution into the inner cavity of the mixing barrel 1, the driving motor 4 is started to drive the central rod 5 to drive the guide plate 6 to rotate in the inner cavity of the mixing barrel 1. It should be noted that: at this time, the guide plate 6 is just below the liquid surface; when the guide plate 6 rotates, under the resistance of the grease and methanol solution inside the mixing barrel 1, the guide impeller 82 will rotate, thereby simply achieving the function of mixing the grease and methanol solution in a small area;

At the same time, the guide impeller 82 will drive the transmission worm 71 to rotate. Since the transmission worm wheel 72 is meshed with the transmission worm 71, the rotating rod 73 can drive the stirring blade 74 to rotate in the inner cavity of the mixing barrel 1. At this time, the stirring blade 74 can rotate along the central rod 5 while stirring, and can effectively flow the grease and methanol solution outside the mixing barrel 1 into the mixing barrel 1. At this time, the whole device realizes the function of improving the stirring effect.

At the same time, when the guide plate 6 revolves along the center rod 5, the grease foam floating on the liquid surface can be moved to the guide frame 84 to form a circular track at the guide frame 84 through the cooperation of the guide grooves 83 provided on the front and rear side walls of the guide plate 6.

When the hemispherical body 61 contacts the collecting ball 95, the hemispherical body 61 can squeeze the collecting ball 95 to move the piston column 94 toward the upper part of the inner cavity of the adsorption box 91 (as shown in FIG. 8 ). At this time, the piston plate 92 will also move upward, and the return spring 93 will be in a compressed state. The total capacity of the lower part of the inner cavity of the adsorption box 91 will be increased, and the internal pressure will be reduced. Under the action of the one-way water valve provided at the adsorption tube 96, the grease foam floating on the liquid surface will be able to be adsorbed into the inner cavity of the adsorption box 91. At this time, the grease foam will settle under the action of its own gravity and accumulate at the bottom of the inner cavity of the adsorption box 91.

When the hemispherical body 61 is out of contact with the collecting ball 95, the squeezing force of the hemispherical body 61 is lost, and the reset spring 93 is reset to make the piston column 94 move downward (as shown in FIG. 9 ). At this time, the arc groove 941 on the piston column 94 is just at the bottom of the inner cavity of the adsorption box 91. The grease foam deposited at the bottom of the adsorption box 91 can enter the inner cavity of the piston column 94 from the arc groove 941 and finally deposit in the collecting ball 95. At the same time, as the total capacity of the lower part of the inner cavity of the adsorption box 91 is reduced, the internal pressure is increased, and the excess air in the adsorption box 91 can be discharged from the outlet pipe 98. It should be noted that, since the grease foam is deposited at the bottom of the inner cavity of the adsorption box 91 at this time, the gas discharged from the outlet pipe 98 is not enough to overcome the gravity of the grease foam and drive it to be ejected from the outlet pipe 98.

Furthermore, through the above, the device can replace manual work to remove the grease foam floating on the liquid surface, avoiding the discharge of grease and grease foam together, which affects the quality of the grease, and at the same time, greatly improves the work efficiency of workers.

The stirring mechanism 7 rotates in the mixing barrel 1 to promote the reaction between the oil and the methanol solution.

It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a useless animal and plant grease alcoholysis esterification apparatus, includes mixing drum (1), the inner chamber of mixing drum (1) has added grease and methanol solution, apron (2) have been placed to the up end of mixing drum (1), the up end intercommunication of apron (2) has condenser pipe (3), its characterized in that still includes:

the device comprises a driving motor (4) fixedly connected to the lower part of a mixing drum (1) through a frame, wherein a central rod (5) is fixedly connected to the output shaft end of the driving motor (4) penetrating through the mixing drum (1), and a plurality of guide plates (6) are annularly arranged on the side wall of the central rod (5);

the stirring mechanisms (7) are arranged on the side walls of the guide plates (6), and the stirring mechanisms (7) are used for stirring the grease in the mixing drum (1);

the inner cavity of each guide plate (6) is provided with a guide mechanism (8), and the guide mechanisms (8) are used for gathering floating foam on the upper layer of grease;

the adsorption mechanism (9) is arranged on the side wall of the mixing drum (1); the adsorption mechanism (9) is used for adsorbing the floating foam of the grease in the mixing drum (1).

2. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 1, characterized in that the guiding mechanism (8) comprises a supporting frame (81), a guiding impeller (82), a guiding groove (83) and a guiding frame (84), the guiding plate (6) is fixedly connected with the central rod (5), the guiding frame (84) is arranged on the left side of the inner cavity of the guiding plate (6), the supporting frame (81) is fixedly connected on the front side and the rear side of the inner cavity side wall of the guiding frame (84), and the guiding impeller (82) is rotatably connected in the inner cavity of the supporting frame (81).

3. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 2, wherein guide grooves (83) are formed in the front and rear side walls of the guide plate (6), and the guide grooves (83) are concavely formed in the guide plate (6) and are located at the lowest position at the guide frame (84).

4. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 2, characterized in that the stirring mechanism (7) comprises a transmission worm (71), a transmission worm wheel (72), a rotating rod (73), stirring blades (74), scraping plates (75) and mounting seats (76), wherein the mounting seats (76) are fixedly connected to the upper side and the lower side of the front end surface of the guide plate (6), the rotating rod (73) is rotatably connected between the mounting seats (76) on the upper side and the lower side, and the stirring blades (74) are fixedly connected to the lower end surface of the rotating rod (73).

5. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 4, characterized in that the front end surface of the guide impeller (82) is fixedly connected with a transmission worm (71), a transmission worm wheel (72) is fixedly connected to the side wall of the rotating rod (73), the transmission worm wheel (72) is meshed with the transmission worm (71), a scraping plate (75) is fixedly connected to the outer side of the lower end surface of the guide plate (6), and the side wall of the scraping plate (75) is attached to the inner side wall of the mixing drum (1).

6. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 1, characterized in that the mixing drum (1) is hollow, an electric heating disc (11) is fixedly installed on the bottom surface of the inner cavity of the hollow cavity, clear water is filled in the hollow cavity of the mixing drum (1), a water adding pipe (12) is fixedly connected to the outer side wall of the mixing drum (1), the water adding pipe (12) is communicated with the hollow cavity, a liquid outlet pipe (13) is fixedly and communicated with the lower end surface of the mixing drum (1), and the liquid outlet pipe (13) is communicated with the inner cavity of the mixing drum (1).

7. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 1, wherein the adsorption mechanism (9) comprises an adsorption box (91), a piston plate (92), a return spring (93), a piston column (94), a collecting ball (95), an adsorption tube (96), an adsorption cover (97) and an air outlet tube (98), the piston plate (92) is slidably connected to the upper portion of an inner cavity of the adsorption box (91), the piston column (94) is fixedly connected to the lower end face of the piston plate (92), and the collecting ball (95) is screwed to the lower portion of an outer side wall of the piston column (94).

8. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 7, characterized in that an upper end surface of the piston plate (92) is fixedly connected with a reset spring (93), the other end of the reset spring (93) is fixedly connected with the top surface of an inner cavity of the adsorption box (91), the piston column (94) is slidably connected with the adsorption box (91), the piston column (94) is communicated with the collecting ball (95), the piston column (94) is in a hollow arrangement, a plurality of arc grooves (941) are formed in the side wall of the piston column (94), the arc grooves (941) are communicated with the hollow cavity of the piston column (94), the arc grooves (941) are just located at the side wall of the lower end surface of the adsorption box (91) when the piston column (94) is at the lowest, a hemispherical body (61) is fixedly connected with the right side of the upper end surface of the guide plate (6), and the hemispherical body (61) is slidably connected with the collecting ball (95).

9. The device for alcoholysis esterification of waste animal and vegetable oil according to claim 7, characterized in that an adsorption pipe (96) is fixed on and communicated with the right side wall of the adsorption box (91), a one-way water valve with an opening to the inner cavity of the adsorption box (91) is arranged at the communication position of the adsorption pipe (96) and the adsorption box (91), an adsorption cover (97) is fixedly connected with the lower end face of the adsorption pipe (96), an air outlet pipe (98) is fixed on and communicated with the left side of the front end face and the rear end face of the adsorption box (91), and a one-way air valve with an outlet to the outside is arranged at the communication position of the air outlet pipe (98) and the adsorption box (91).

10. A method for implementing the apparatus for alcoholysis esterification of waste animal and vegetable fats and oils according to any one of claims 1 to 9, comprising the steps of:

step one: after a proper amount of clean water is added into the hollow cavity of the mixing drum (1) from the water adding pipe (12) by using an external water pump, the water temperature is kept at 60 ℃ by starting the electric heating disc (11);

step two: adding a proper amount of grease and methanol solution into the inner cavity of the mixing drum (1), and starting the driving motor (4) to drive the central rod (5) to drive the stirring mechanism (7) to rotate in the mixing drum (1) so as to promote the reaction of the grease and the methanol solution;

step three: the stirring mechanism (7) is used for mixing and stirring the grease and the methanol solution, and the guiding mechanism (80) and the adsorption mechanism (9) can be used for adsorbing and retaining grease foam on the upper layer of the liquid surface.