Preparation method and device of mud green efficient flocculant

Abstract

The application discloses a kind of mud green efficient flocculants preparation method and device, and the present application relates to flocculants preparation technical field, including the following steps: chitosan is added to dilute acetic acid solution, and the concentration of chitosan solution is one to two percent, chitosan solution is heated to forty to fifty degrees Celsius, initiator is added, and the dosage is one to two percent of chitosan mass, crosslinking agent N,N'-methylene bisacrylamide is added, and the dosage is zero point five to one percent of chitosan mass, continuous stirring is carried out, so that chitosan occurs crosslinking and polymerization, chitosan is transported to preparation device, after pretreatment, polyacrylamide solution is slowly added to modified chitosan solution, and the mass ratio of polyacrylamide and chitosan is two to one to three to one, stirring is carried out at fifty to sixty degrees Celsius for three to four hours, and is fully compounded, after reaction, the prepared composite flocculant solution is naturally cooled to room temperature.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of flocculants preparation, in particular to a mud green efficient flocculants preparation method and device. BACKGROUND

[0002] The flocculants are mainly used in water supply and drainage and sewage treatment fields. The flocculants mainly make some particles or particles with electricity in water close to each other, reduce the electric potential, make them in an unstable state, and use the polymerization properties to make these particles flocculate into groups, and separate them out through physical or chemical methods to achieve the purpose of cleaning water. At present, the flocculants used in wastewater treatment are generally inorganic flocculants powder, which needs to be prepared into a flocculants solution before use.

[0003] The flocculants usually need to be continuously stirred during preparation, and the complex reaction between the solvents usually needs to be continuously carried out at a constant temperature, so the heat preservation needs to be carried out at the same time of stirring. When heating, the heat will be transferred to the air, causing heat loss, so the heating equipment needs to be frequently started, causing a large amount of energy consumption. Therefore, the present application provides a mud green efficient flocculants preparation method and device. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a mud green efficient flocculants preparation method and device, which comprises the following steps:

[0005] S1, material preparation, selecting polyacrylamide with a molecular weight of about 1,200 square, chitosan with a deacetylation degree of more than 80%, ammonium persulfate as an initiator, N,N'-methylene bisacrylamide as a crosslinking agent, a dilute acetic acid solution with a concentration of 1 to 2 percent, and sufficient distilled water;

[0006] S2, pretreatment of polyacrylamide, dissolving polyacrylamide in distilled water to prepare a solution with a concentration of 1 to 2 percent, stirring uniformly, and standing at room temperature for two to three hours to make it fully dissolved and hydrated;

[0007] S3, modification of natural high molecular materials, slowly adding chitosan to the dilute acetic acid solution, stirring while adding, and making it completely dissolved to obtain a chitosan solution with a concentration of 1 to 2 percent. The chitosan solution is heated to 40 to 50 DEG C, then the initiator ammonium persulfate is added in an amount of 1 to 2 percent of the mass of chitosan, stirred uniformly, then the crosslinking agent N,N'-methylene bisacrylamide is added in an amount of 0.5 to 1 percent of the mass of chitosan, and continues to be stirred, and the crosslinking and polymerization reactions of chitosan are carried out at 40 to 50 DEG C for two to three hours;

[0008] S4, preparation of the composite flocculant, the chitosan is transported into the preparation device, then the pretreated polyacrylamide solution is slowly added into the modified chitosan solution, the mass ratio of the polyacrylamide to the chitosan is two to one to three to one, the polyacrylamide and the chitosan are fully compounded by stirring at 50-60 DEG C for 3-4 hours;

[0009] S5, post-treatment, after the reaction is completed, the composite flocculant solution is naturally cooled to room temperature, filtered by filter paper to remove unreacted substances and impurities, the filtered solution is washed, and the washed composite flocculant is dried in an oven at 60-70 DEG C for 8-10 hours to obtain a powdery mud green efficient flocculant.

[0010] Further, the preparation device comprises:

[0011] The outer shell is fixedly connected with a top cover on the outer side thereof, and a support is fixedly connected to the outer side of the outer shell;

[0012] The preparation mechanism has a stirring structure for the compounding stirring of the chitosan and the polyacrylamide solution, and is fixedly connected to the side of the top cover away from the outer shell, so that the chitosan and the polyacrylamide solution are respectively injected into the inner part of the outer shell, the preparation mechanism is started to stir the solution in the inner part of the outer shell, the polyacrylamide and the chitosan are fully compounded, and finally a powdery mud green efficient flocculant is obtained through post-treatment.

[0013] Further, the preparation mechanism comprises two feeding pipes which are symmetrically arranged on the side of the top cover away from the outer shell and are fixedly connected to the side of the top cover away from the outer shell, a discharging pipe is fixedly connected to the side of the outer shell away from the top cover, a stirring assembly is arranged in the inner part of the outer shell, and a constant temperature assembly is also arranged in the inner part of the outer shell, the chitosan and the polyacrylamide solution are respectively injected through the two feeding pipes, and the solution is discharged through the discharging pipe after being fully stirred and compounded, the two feeding pipes are respectively arranged, so that the injection amount of the other solution can be adjusted at any time when the chitosan and the polyacrylamide solution are too much or too little, thereby ensuring that the proportion of the two is always constant and the compounded composite flocculant solution is always unchanged.

[0014] Further, the stirring assembly comprises a motor, a fixed seat is fixedly connected to the surface of the motor, the fixed seat is fixedly connected to the side of the top cover away from the outer shell, and the two sides of the fixed seat respectively extend to the surfaces of the two feeding pipes, and the fixed seat is fixedly connected to the outer sides of the feeding pipes, the motor is fixed by arranging the fixed seat, thereby avoiding large vibration of the motor, and the feeding pipes are also fixed, thereby avoiding falling off of the feeding pipes.

[0015] Further, the motor is fixedly connected with a rotating shaft near one side of the shell, the rotating shaft is fixedly connected with the output end of the motor, the rotating shaft penetrates through the top cover and extends into the shell, the surface of the rotating shaft is rotatably connected with the inner side of the top cover, the surface of the rotating shaft is fixedly connected with a stirring frame, the stirring frame is arranged in the shell, the stirring frame is rotatably connected with the inner side of the shell, and a plurality of stirring frames are uniformly distributed along the circumference of the rotating shaft, the motor is started, the output end of the motor drives the rotating shaft to rotate, and finally drives the plurality of stirring frames to rotate, so that the two solutions in the shell are stirred to promote the compounding of the two solutions.

[0016] Further, the stirring frame is fixedly connected with stirring blades near the inner side of the top cover, the side, away from the top cover, of the stirring blade is fixedly connected with the side, away from the top cover, of the adjacent stirring frame, and the stirring blade is obliquely arranged, a plurality of stirring blades are uniformly distributed along the circumference of the rotating shaft, the stirring frame rotates to drive the stirring blades to rotate, the stirring blades rotate to increase the stirring area and obtain better stirring effect, and the obliquely arranged stirring blades can drive the solution to rise when rotating, exchange the up and down solutions during stirring, obtain better mixing effect, and avoid stratification of the solution.

[0017] Further, the constant-temperature assembly comprises a ring groove, the ring groove is arranged on one side of the shell near the top cover, the inner side of the ring groove is fixedly connected with a ring cylinder, the ring cylinder is made of heat-conducting material, the inner side of the ring cylinder is fixedly connected with an electric heating wire, and the electric heating wire is spirally arranged, the electric heating wire is started, heat is generated by the electric heating wire, the heat is transferred to the ring cylinder, then to the shell, and finally to the solution in the shell, so that the temperature of the solution is maintained in a suitable range, the smooth compounding of the two solutions is ensured, the spirally arranged electric heating wire can realize more uniform cooling by using one electric heating wire during heating, better constant-temperature effect is obtained, and the ring cylinder made of heat-conducting material can first absorb the heat generated by the electric heating wire and then transfer the heat to the solution through the shell, so that the heating of the solution is more uniform.

[0018] Further, a hexagonal groove is arranged on one side of the shell near the top cover, the hexagonal groove is arranged outside the ring groove, a plurality of hexagonal grooves are uniformly distributed along the circumference of the ring groove, the inner side of each of the plurality of ring grooves is fixedly connected with a hexagonal cylinder, and the ends, away from the top cover, of the plurality of hexagonal cylinders are fixedly connected with each other, the hexagonal cylinder is made of heat-preservation material, the hexagonal cylinder made of heat-preservation material can reduce the heat transfer from the ring cylinder to the outside of the shell, and the plurality of circumferentially arranged hexagonal cylinders form a honeycomb shape, can uniformly share the pressure when impacted, obtain better anti-collision effect, and avoid damage to the shell.

[0019] Furthermore, a ring plate is fixedly connected to one end of the outer shell near the top cover, and the ring plate is located inside the top cover. The outer side of the ring plate is fixedly connected to the inner side of the top cover, and the interior of the hexagonal cylinder is vacuum-sealed. The ring plate seals the end of the hexagonal cylinder, maintaining a vacuum environment inside the hexagonal cylinder. The vacuum environment cannot conduct heat, and the vacuum interior of the hexagonal cylinder can better insulate the exterior of the ring cylinder, reducing the transfer of heat to the external environment, thereby reducing the heating power of the heating wire, achieving energy-saving effect, and making the preparation of flocculants more green and efficient.

[0020] Furthermore, a hexagonal plug is fixedly connected to the side of the ring plate near the outer shell. The surface of the hexagonal plug is slidably connected to the inner side of the hexagonal cylinder, and several hexagonal plugs are evenly distributed along the circumference of the ring plate. Each hexagonal plug corresponds to a hexagonal cylinder. The hexagonal plugs further seal the end of the hexagonal cylinder, better maintaining the vacuum environment inside the hexagonal cylinder. When the ring plate is loose, since the hexagonal plugs extend into the interior of the hexagonal cylinder, even if the ring plate is loose, the hexagonal plugs will always remain inside the hexagonal cylinder. At the same time, under the action of vacuum pressure, the hexagonal plugs are not easy to slip out, which can achieve a better sealing effect when the ring plate is loose.

[0021] This invention provides a method and apparatus for preparing a green and efficient flocculant for mud. It has the following beneficial effects:

[0022] 1. This invention, through the setting of a preparation mechanism, injects chitosan and polyacrylamide solutions through two feeding tubes respectively. The separate setting of the two feeding tubes allows for the adjustment of the injection volume of the other solution at any time when there is too much or too little chitosan and polyacrylamide solution, thereby ensuring that the ratio of the two remains constant and that the composite flocculant solution remains unchanged. The fixing base fixes the motor to avoid large vibrations of the motor, and at the same time fixes the feeding tube to prevent the feeding tube from falling off.

[0023] 2. This invention incorporates a stirring assembly. The rotating stirring frame stirs the two solutions inside the outer shell, promoting their compounding. The rotating stirring blades increase the stirring area and achieve a better stirring effect. Simultaneously, the tilted stirring blades, when rotating, can lift the solution upwards, causing an exchange between the upper and lower solutions during stirring, resulting in a better mixing effect and preventing the solution from separating.

[0024] 3. This invention ensures that the temperature of the solution is maintained within a suitable range by setting a constant temperature component, thus ensuring the smooth compounding of the two solutions. The spirally arranged heating wire can achieve more uniform cooling during heating by using a single heating wire, resulting in a better constant temperature effect. The heat-conducting ring can first absorb the heat emitted by the heating wire and then transfer it to the solution through the outer shell, making the temperature rise of the solution more uniform.

[0025] 4. This invention utilizes a hexagonal cylinder made of insulating material to reduce heat transfer from the annular cylinder to the outer shell. Several circumferentially arranged hexagonal cylinders form a honeycomb-like shape, which evenly distributes pressure upon impact, resulting in better shock absorption and preventing damage to the outer shell. The annular plate seals the ends of the hexagonal cylinder, maintaining a vacuum environment inside. This vacuum environment prevents heat conduction, allowing for better insulation of the annular cylinder's exterior and reducing heat transfer to the external environment. This reduces the heating power of the heating wire, achieving energy savings and making flocculant preparation more environmentally friendly and efficient. A hexagonal plug further seals the ends of the hexagonal cylinder, maintaining the vacuum environment inside. Even when the annular plate loosens, the hexagonal plug extends into the interior of the hexagonal cylinder, ensuring it remains inside the cylinder. Furthermore, under vacuum pressure, the hexagonal plug is less likely to slip out, providing a better seal even when the annular plate is loose. Attached Figure Description

[0026] Figure 1 This is a flowchart of the present invention;

[0027] Figure 2 This is a schematic diagram of the preparation mechanism of the present invention;

[0028] Figure 3 This is a schematic diagram of the feeding pipe of the present invention;

[0029] Figure 4 This is a schematic diagram of the interior of the outer casing of the present invention;

[0030] Figure 5 This is a schematic diagram of the stirring assembly of the present invention;

[0031] Figure 6 This is a schematic diagram of the stirring blade of the present invention;

[0032] Figure 7 This is a schematic diagram of the constant temperature component assembly of the present invention;

[0033] Figure 8 This is a schematic diagram of the annular groove of the present invention.

[0034] Figure 9 This is a schematic diagram of the heating wire of the present invention.

[0035] Figure 10 This is a schematic diagram of the annular plate of the present invention.

[0036] In the diagram: 1. Outer shell; 2. Top cover; 3. Support; 4. Preparation mechanism; 41. Feeding pipe; 42. Stirring assembly; 421. Rotating shaft; 422. Motor; 423. Stirring frame; 424. Stirring blade; 43. Fixed base; 44. Feeding pipe; 45. Temperature control assembly; 451. Ring groove; 452. Hexagonal groove; 453. Ring cylinder; 454. Heating wire; 455. Hexagonal cylinder; 456. Ring plate; 457. Hexagonal plug. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1, please refer to Figure 1 A method for preparing a green and efficient flocculant for mud includes the following steps:

[0039] S1. Material preparation: Select polyacrylamide with a molecular weight of about 1200 ppm, chitosan with a degree of deacetylation of more than 80%, ammonium persulfate as an initiator, N,N'-methylenebisacrylamide as a crosslinking agent, dilute acetic acid solution with a concentration between 1% and 2%, and sufficient distilled water.

[0040] S2. Pretreatment of polyacrylamide: Dissolve polyacrylamide in distilled water to prepare a solution with a concentration of 1% to 2%, stir evenly, and let it stand at room temperature for two to three hours to allow it to fully dissolve and hydrate.

[0041] S3. Modification of natural polymer materials: Chitosan is slowly added to a dilute acetic acid solution while stirring until it is completely dissolved, resulting in a chitosan solution with a concentration of 1% to 2%. The chitosan solution is heated to 40 to 50 degrees Celsius, and then ammonium persulfate initiator is added in an amount of 1% to 2% of the chitosan mass. The mixture is stirred evenly, and then N,N'-methylenebisacrylamide crosslinking agent is added in an amount of 0.5% to 1% of the chitosan mass. The mixture is stirred continuously and reacted at 40 to 50 degrees Celsius for two to three hours to allow the chitosan to undergo crosslinking and polymerization reactions.

[0042] S4. Preparation of composite flocculant: Chitosan is transported to the preparation device, and then the pretreated polyacrylamide solution is slowly added to the modified chitosan solution. The mass ratio of polyacrylamide to chitosan is 2:1 to 3:1. The reaction is stirred at 50 to 60 degrees Celsius for 3 to 4 hours to fully combine polyacrylamide and chitosan.

[0043] S5. Post-treatment: After the reaction is complete, the composite flocculant solution is naturally cooled to room temperature and filtered with filter paper to remove unreacted substances and impurities. The filtered solution is washed repeatedly with distilled water two to three times. The washed composite flocculant is then dried in an oven at 60 to 70 degrees Celsius for eight to ten hours to obtain a powdered green high-efficiency flocculant for mud.

[0044] Example 2, please refer to Figures 1-6 The preparation apparatus includes:

[0045] The outer casing 1 has a top cover 2 fixedly connected to its outer side and a bracket 3 fixedly connected to its outer side.

[0046] Preparation mechanism 4 has a stirring structure for the composite stirring of chitosan and polyacrylamide solution. Preparation mechanism 4 is fixedly connected to the side of top cover 2 away from outer shell 1. Chitosan and polyacrylamide solution are injected into the interior of outer shell 1 respectively. Preparation mechanism 4 is started and stirs the solution inside outer shell 1 to fully combine polyacrylamide and chitosan. Finally, after post-processing, powdered green high-efficiency flocculant for mud is obtained.

[0047] The preparation mechanism 4 includes a feeding pipe 41. Two feeding pipes 41 are symmetrically arranged on the side of the top cover 2 away from the outer shell 1, and the feeding pipes 41 are fixedly connected to the side of the top cover 2 away from the outer shell 1. A discharge pipe 44 is fixedly connected to the side of the outer shell 1 away from the top cover 2. A stirring assembly 42 and a constant temperature assembly 45 are arranged inside the outer shell 1. Chitosan and polyacrylamide solutions are injected through the two feeding pipes 41 respectively. After thorough mixing and compounding, the solutions are discharged through the discharge pipe 44. The separate arrangement of the two feeding pipes 41 allows for adjustment of the injection volume of the other solution when there is too much or too little chitosan and polyacrylamide solution, thereby ensuring that the ratio of the two solutions remains constant and that the compound flocculant solution remains unchanged.

[0048] The stirring assembly 42 includes a motor 422, and a fixing seat 43 is fixedly connected to the surface of the motor 422. The fixing seat 43 is fixedly connected to the side of the top cover 2 away from the outer shell 1, and the two sides of the fixing seat 43 extend to the surface of the two feeding pipes 41 respectively. The fixing seat 43 is fixedly connected to the outer side of the feeding pipes 41. By setting the fixing seat 43, the motor 422 is fixed to avoid large vibration of the motor 422, and the feeding pipes 41 are fixed to prevent the feeding pipes 41 from falling off.

[0049] A rotating shaft 421 is fixedly connected to the side of the motor 422 near the outer casing 1. The rotating shaft 421 is fixedly connected to the output end of the motor 422. The rotating shaft 421 passes through the top cover 2 and extends into the interior of the outer casing 1. The surface of the rotating shaft 421 is rotatably connected to the inner side of the top cover 2. A stirring frame 423 is fixedly connected to the surface of the rotating shaft 421. The stirring frame 423 is located inside the outer casing 1 and is rotatably connected to the inner side of the outer casing 1. Several stirring frames 423 are evenly distributed along the circumference of the rotating shaft 421. When the motor 422 is started, the output end of the motor 422 drives the rotating shaft 421 to rotate, which in turn drives several stirring frames 423 to rotate, thereby stirring the two solutions inside the outer casing 1 and promoting their compounding.

[0050] A stirring blade 424 is fixedly connected to the inner side of the stirring frame 423 near the top cover 2. The side of the stirring blade 424 away from the top cover 2 is fixedly connected to the inner side of the adjacent stirring frame 423 away from the top cover 2. The stirring blade 424 is set at an angle. Several stirring blades 424 are evenly distributed around the circumference of the rotating shaft 421. When the stirring frame 423 rotates, it drives the stirring blade 424 to rotate. The rotation of the stirring blade 424 can increase the stirring area and obtain a better stirring effect. At the same time, the inclined stirring blade 424 can drive the solution to rise when rotating. While stirring, it can also drive the upper and lower solutions to exchange, obtain a better mixing effect, and avoid the solution from separating.

[0051] Example 3, please refer to Figures 1-10 The thermostatic component 45 includes an annular groove 451, which is located on the side of the outer shell 1 near the top cover 2. An annular cylinder 453 is fixedly connected to the inner side of the annular groove 451, and the annular cylinder 453 is made of a thermally conductive material. An electric heating wire 454 is fixedly connected to the inner side of the annular cylinder 453, and the electric heating wire 454 is spirally arranged. When the electric heating wire 454 is activated, it generates heat, which is transferred to the annular cylinder 453, then to the outer shell 1, and finally to the solution inside the outer shell 1, ensuring that the temperature of the solution is maintained within a suitable range and ensuring the smooth compounding of the two solutions. The spirally arranged electric heating wire 454 can achieve more uniform cooling during heating and obtain a better thermostatic effect. The thermally conductive annular cylinder 453 can first absorb the heat generated by the electric heating wire 454 and then transfer it to the solution through the outer shell 1, making the temperature rise of the solution more uniform.

[0052] A hexagonal groove 452 is also provided on the side of the outer shell 1 near the top cover 2. The hexagonal groove 452 is located on the outside of the annular groove 451, and several hexagonal grooves 452 are evenly distributed around the circumference of the annular groove 451. A hexagonal cylinder 455 is fixedly connected to the inner side of each annular groove 451, and the ends of the hexagonal cylinders 455 away from the top cover 2 are fixed to each other. The hexagonal cylinders 455 are made of heat-insulating material. The heat-insulating material of the hexagonal cylinders 455 can reduce the heat transfer from the annular cylinder 453 to the outside of the outer shell 1. The several circumferentially arranged hexagonal cylinders 455 form a honeycomb-like shape, which can evenly distribute the pressure when impacted, obtain better impact protection effect, and avoid damage to the outer shell 1.

[0053] A ring plate 456 is fixedly connected to one end of the outer shell 1 near the top cover 2, and the ring plate 456 is located inside the top cover 2. The outer side of the ring plate 456 is fixedly connected to the inner side of the top cover 2, and the interior of the hexagonal cylinder 455 is vacuum-sealed. The ring plate 456 seals the end of the hexagonal cylinder 455 to maintain the vacuum environment inside the hexagonal cylinder 455. The vacuum environment cannot conduct heat, and the vacuum inside the hexagonal cylinder 455 can better insulate the exterior of the ring cylinder 453, reduce the transfer of heat to the external environment, thereby reducing the heating power of the heating wire 454, achieving energy saving effect, and making the preparation of flocculant more green and efficient.

[0054] A hexagonal plug 457 is fixedly connected to the side of the ring plate 456 near the outer shell 1. The surface of the hexagonal plug 457 is slidably connected to the inner side of the hexagonal cylinder 455, and several hexagonal plugs 457 are evenly distributed along the circumference of the ring plate 456. Each hexagonal plug 457 corresponds to one hexagonal cylinder 455. The hexagonal plugs 457 further seal the end of the hexagonal cylinder 455, better maintaining the vacuum environment inside the hexagonal cylinder 455. When the ring plate 456 is loose, since the hexagonal plugs 457 extend into the interior of the hexagonal cylinder 455, even if the ring plate 456 is loose, the hexagonal plugs 457 will always remain inside the ring plate 456. At the same time, under the action of vacuum pressure, the hexagonal plugs 457 are not easy to slip out, which can achieve a better sealing effect when the ring plate 456 is loose.

[0055] In use, chitosan and polyacrylamide solutions are injected through two feeding pipes 41 respectively. The motor 422 is started, and the output end of the motor 422 drives the rotating shaft 421 to rotate, which in turn drives several stirring frames 423 to rotate. The rotation of the stirring frames 423 drives the stirring blades 424 to rotate. At the same time, the heating wire 454 is started, which generates heat and transfers it to the ring cylinder 453, then to the outer shell 1, and finally to the solution inside the outer shell 1, ensuring that the temperature of the solution is maintained within a suitable range for the smooth compounding of the two solutions. The hexagonal cylinder 455, made of heat-insulating material, reduces the heat transfer from the ring cylinder 453 to the outside of the outer shell 1. The vacuum inside the hexagonal cylinder 455 insulates the outside of the ring cylinder 453, reducing the heat transfer to the external environment and reducing the heating power of the heating wire 454. After thorough mixing and compounding, the solution is discharged through the discharge pipe 44 and finally, after post-processing, a powdered green high-efficiency flocculant for mud is obtained.

[0056] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A device for preparing a green and efficient flocculant for mud, characterized in that, include: The outer shell (1) has a top cover (2) fixedly connected to its outer side and a bracket (3) fixedly connected to its outer side. Preparation mechanism (4) has a stirring structure for composite stirring of chitosan and polyacrylamide solution. The preparation mechanism (4) is fixedly connected to the top cover (2) on the side away from the outer shell (1). The outer shell (1) is provided with a hexagonal groove (452) on the side near the top cover (2), and the hexagonal groove (452) is provided on the outside of the annular groove (451). The hexagonal groove (452) is evenly distributed in a plurality of places along the circumference of the annular groove (451). The inner side of the plurality of annular grooves (451) is fixedly connected to a hexagonal cylinder (455), and the ends of the plurality of hexagonal cylinders (455) away from the top cover (2) are fixed to each other. The hexagonal cylinder (455) is made of heat-insulating material. The outer shell (1) is fixedly connected to a ring plate (456) at one end near the top cover (2), and the ring plate (456) is located inside the top cover (2). The outer side of the ring plate (456) is fixedly connected to the inner side of the top cover (2), and the interior of the hexagonal cylinder (455) is vacuum-sealed. A hexagonal plug (457) is fixedly connected to the side of the ring plate (456) near the outer shell (1). The surface of the hexagonal plug (457) is slidably connected to the inner side of the hexagonal cylinder (455). Several hexagonal plugs (457) are evenly distributed along the circumference of the ring plate (456). The hexagonal plugs (457) correspond one-to-one with the hexagonal cylinders (455). The interior of the outer casing (1) is further provided with a temperature control component (45). The temperature control component (45) includes an annular groove (451), which is located on the side of the outer casing (1) near the top cover (2). An annular cylinder (453) is fixedly connected to the inner side of the annular groove (451), and the annular cylinder (453) is made of a thermally conductive material. The inner side of the annular cylinder (453) is fixedly connected to... The heating wire (454) is spirally arranged.

2. The apparatus for preparing a green and efficient flocculant for mud according to claim 1, characterized in that: The preparation mechanism (4) includes a feeding tube (41). Two feeding tubes (41) are symmetrically arranged on the side of the top cover (2) away from the outer shell (1), and the feeding tubes (41) are fixedly connected to the side of the top cover (2) away from the outer shell (1). A feed pipe (44) is fixedly connected to one side of the top cover (2), and a stirring assembly (42) is provided inside the outer shell (1).

3. The apparatus for preparing a green and efficient flocculant for mud according to claim 2, characterized in that: The stirring assembly (42) includes a motor (422), and a fixing seat (43) is fixedly connected to the surface of the motor (422). The fixing seat (43) is fixedly connected to the side of the top cover (2) away from the outer shell (1), and the two sides of the fixing seat (43) extend to... The two feeding tubes (41) are fixedly connected to the outer surface of the feeding tubes (41).

4. The apparatus for preparing a green and efficient flocculant for mud according to claim 3, characterized in that: A rotating shaft (421) is fixedly connected to the side of the motor (422) near the outer casing (1). The rotating shaft (421) is fixedly connected to the output end of the motor (422). The rotating shaft (421) passes through the top cover (2) and extends into the interior of the outer casing (1). The surface of (421) is rotatably connected to the inner side of the top cover (2). A stirring frame (423) is fixedly connected to the surface of the rotating shaft (421). The stirring frame (423) is located inside the outer shell (1). The stirring frame (423) is rotatably connected to the inner side of the outer shell (1). Several stirring frames (423) are evenly distributed along the circumference of the rotating shaft (421).

5. The apparatus for preparing a green and efficient flocculant for mud according to claim 4, characterized in that: The stirring frame (423) is fixedly connected to the inner side of the top cover (2) with stirring blades (424). The side of the stirring blades (424) away from the top cover (2) is fixedly connected to the inner side of the adjacent stirring frame (423) away from the top cover (2). The stirring blades (424) are inclined and a number of stirring blades (424) are evenly distributed along the circumference of the rotating shaft (421).

6. A method for preparing a green and efficient flocculant for mud, using the preparation apparatus described in claim 1, characterized in that, Includes the following steps: S1. Material preparation: Select polyacrylamide with a molecular weight of 12 million, chitosan with a degree of deacetylation of more than 80%, ammonium persulfate as an initiator, N,N'-methylenebisacrylamide as a crosslinking agent, dilute acetic acid solution with a concentration between 1% and 2%, and sufficient distilled water. S2. Pretreatment of polyacrylamide: Dissolve polyacrylamide in distilled water to prepare a solution with a concentration of 1% to 2%, stir evenly, and let it stand at room temperature for two to three hours to allow it to fully dissolve and hydrate. S3. Modification of natural polymer materials: Chitosan is slowly added to a dilute acetic acid solution while stirring until it is completely dissolved, resulting in a chitosan solution with a concentration of 1% to 2%. The chitosan solution is heated to 40 to 50 degrees Celsius, and then ammonium persulfate initiator is added in an amount of 1% to 2% of the chitosan mass. The mixture is stirred evenly, and then N,N'-methylenebisacrylamide crosslinking agent is added in an amount of 0.5% to 1% of the chitosan mass. The mixture is stirred continuously and reacted at 40 to 50 degrees Celsius for two to three hours to allow the chitosan to undergo crosslinking and polymerization reactions. S4. Preparation of composite flocculant: Chitosan is transported to the preparation device, and then the pretreated polyacrylamide solution is slowly added to the modified chitosan solution. The mass ratio of polyacrylamide to chitosan is 2:1 to 3:

1. The reaction is stirred at 50 to 60 degrees Celsius for 3 to 4 hours to fully combine polyacrylamide and chitosan. S5. Post-treatment: After the reaction is complete, the composite flocculant solution is naturally cooled to room temperature and filtered with filter paper to remove unreacted substances and impurities. The filtered solution is washed repeatedly with distilled water two to three times. The washed composite flocculant is then dried in an oven at 60 to 70 degrees Celsius for eight to ten hours to obtain a powdered green high-efficiency flocculant for mud.

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