Method and device for preparing green and efficient flocculating agent for mud

Abstract

The invention discloses a preparation method and device of a green and efficient mud flocculant, and relates to the technical field of flocculant preparation, and the preparation method comprises the following steps: adding chitosan into a dilute acetic acid solution to obtain a chitosan solution with the concentration of 1-2%, heating the chitosan solution to 40-50 DEG C, adding an initiator, and stirring to obtain the green and efficient mud flocculant. The preparation method comprises the following steps: adding chitosan into a reaction kettle, adding a cross-linking agent N, N '-methylenebisacrylamide of which the use amount is 1-2% of the mass of the chitosan, adding a cross-linking agent N, N'-methylenebisacrylamide of which the use amount is 0.5-1% of the mass of the chitosan, continuously stirring to enable the chitosan to generate cross-linking and polymerization reaction, conveying the chitosan into a preparation device, and reacting for 2-3 hours, the pretreated polyacrylamide solution is slowly added into the modified chitosan solution, the mass ratio of polyacrylamide to chitosan is (2: 1)-(3: 1), stirring reaction is carried out for 3-4 hours at the temperature of 50-60 DEG C, full compounding is carried out, and after the reaction is finished, the prepared composite flocculant solution is naturally cooled to the room temperature.

Description

Technical Field

[0001] The invention relates to the field of flocculant preparation, and in particular to a method and a device for preparing a green and efficient mud flocculant. Background Art

[0002] Flocculants are mainly used in the fields of water supply and drainage and sewage treatment. Flocculants are mainly charged groups and some charged particles or particles in water that are difficult to separate, which bring them closer to each other, reduce their potential, make them unstable, and use their polymerization properties to make these particles flocculate into agglomerates, and separate them by physical or chemical methods to achieve the purpose of clean water. The flocculants currently used in wastewater treatment are generally inorganic flocculant powders, which need to be prepared into flocculant solutions before use; When preparing flocculants, continuous stirring is usually required, and the composite reaction between solvents usually needs to be carried out continuously at a constant temperature. Therefore, insulation is required while stirring. When heating, heat will be transferred to the air, causing heat loss, which requires frequent startup of the heating equipment and causes a large amount of energy consumption. Therefore, we proposed a method and device for preparing a green and efficient flocculant for mud. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a method and device for preparing a green and efficient flocculant for slurry, comprising the following steps: S1. Material preparation: polyacrylamide with a molecular weight of about 1,200 cubic meters, chitosan with a deacetylation degree of more than 80%, ammonium persulfate as an initiator, N,N'-methylenebisacrylamide as a cross-linking agent, a dilute acetic acid solution with a concentration between 1% and 2%, and sufficient distilled water; S2. Pretreatment of polyacrylamide: dissolving polyacrylamide in distilled water to prepare a solution with a concentration of 1% to 2%, stirring evenly, and standing 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, stirring while adding to completely dissolve it, to obtain a chitosan solution with a concentration of 1% to 2%, the chitosan solution is heated to 40 to 50 degrees Celsius, and then an initiator ammonium persulfate is added in an amount of 1% to 2% of the mass of the chitosan, and stirred evenly, and then a cross-linking agent N,N'-methylenebisacrylamide is added in an amount of 0.5% to 1% of the mass of the chitosan, and stirring is continued, and the reaction is carried out at 40 to 50 degrees Celsius for two to three hours to allow the chitosan to undergo cross-linking and polymerization reactions; S4, preparation of composite flocculant, conveying chitosan to the preparation device, then slowly adding the pretreated polyacrylamide solution to the modified chitosan solution, the mass ratio of polyacrylamide to chitosan is 2:1 to 3:1, stirring and reacting at 50 to 60 degrees Celsius for 3 to 4 hours, so that the polyacrylamide and chitosan are fully composited; S5. Post-treatment: After the reaction is completed, the composite flocculant solution is naturally cooled to room temperature, filtered with filter paper to remove unreacted substances and impurities, washed with distilled water for two to three times, and dried in an oven at 60 to 70 degrees Celsius for eight to ten hours to obtain a powdered mud green and efficient flocculant.

[0004] Furthermore, the preparation device comprises: A housing, wherein a top cover is fixedly connected to the outer side of the housing, and a bracket is fixedly connected to the outer side of the housing; The preparation mechanism has a stirring structure for composite stirring of chitosan and polyacrylamide solution. The preparation mechanism is fixedly connected to the side of the top cover away from the outer shell. The chitosan and polyacrylamide solutions are respectively injected into the inner part of the outer shell, and the preparation mechanism is started. The preparation mechanism stirs the solution inside the outer shell to fully composite the polyacrylamide and chitosan, and finally a powdered green and efficient mud flocculant is obtained through post-processing.

[0005] Furthermore, the preparation mechanism includes a feeding pipe, two of which are symmetrically arranged on a side of the top cover away from the outer shell, and the feeding pipe is fixedly connected to the side of the top cover away from the outer shell, and a feeding pipe is fixedly connected to the side of the outer shell away from the top cover, and a stirring component is arranged inside the outer shell, and a constant temperature component is also arranged inside the outer shell. Chitosan and polyacrylamide solutions are respectively injected through the two feeding pipes, and after being fully stirred and compounded, they are discharged through the feeding pipe. The two feeding pipes are arranged separately, and when the chitosan and polyacrylamide solutions are too much or too little, the injection amount of the other solution can be adjusted at any time, thereby ensuring that the ratio of the two is always constant, and ensuring that the compounded composite flocculant solution remains unchanged.

[0006] Furthermore, the stirring assembly includes 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 extend to the surfaces of two feeding tubes respectively, and the fixed seat is fixedly connected to the outer side of the feeding tube. The motor is fixed by setting the fixed seat to prevent the motor from vibrating significantly, and the feeding tube is fixed at the same time to prevent it from falling off.

[0007] Furthermore, a rotating shaft is fixedly connected to one side of the motor close to the shell, and the rotating shaft is fixedly connected to the output end of the motor, the rotating shaft passes through the top cover and extends to the inside of the shell, and the surface of the rotating shaft is rotatably connected to the inner side surface of the top cover, and a stirring frame is fixedly connected to the surface of the rotating shaft, and the stirring frame is arranged inside the shell, and the stirring frame is rotatably connected to the inner side surface of the shell, and there are several stirring frames evenly distributed along the circumference of the rotating shaft. When the motor is started, the output end of the motor drives the rotating shaft to rotate, and finally drives the several stirring frames to rotate, thereby stirring the two solutions inside the shell and promoting the recombination of the two solutions.

[0008] Furthermore, a stirring blade is fixedly connected to the inner side surface of the stirring frame close to the top cover, and the side of the stirring blade away from the top cover is fixedly connected to the inner side surface of the adjacent stirring frame away from the top cover, and the stirring blade is inclined. There are several stirring blades evenly distributed along the circumference of the rotating shaft. The stirring frame rotates, driving the stirring blades to rotate. The rotation of the stirring blades can increase the stirring area and obtain a better stirring effect. At the same time, the inclined stirring blades can drive the solution to rise when rotating, and drive the upper and lower solutions to exchange while stirring, thereby obtaining a better mixing effect and avoiding stratification of the solution.

[0009] Furthermore, the thermostatic component includes an annular groove, which is opened on a side of the outer shell close to the top cover, and the inner side surface of the annular groove is fixedly connected with an annular cylinder, and the annular cylinder is made of a heat-conducting material, and the inner side surface of the annular cylinder is fixedly connected with an electric heating wire, and the electric heating wire is spirally arranged, and the electric heating wire is started, and the electric heating wire generates heat, and the heat is transferred to the annular cylinder, and then to the outer shell, and finally to the solution inside the outer shell, ensuring that the temperature of the solution is maintained within an appropriate range and ensuring the smooth recombination of the two solutions. The spirally arranged heating wire can achieve more uniform cooling with one heating wire during heating, thereby obtaining a better constant temperature effect, and the annular cylinder made of a heat-conducting material can first absorb the heat emitted by the heating wire, and then transfer it to the solution via the outer shell, so that the temperature of the solution rises more evenly.

[0010] Furthermore, a hexagonal groove is provided on one side of the outer shell close to the top cover, and the hexagonal groove is provided on the outer side of the annular groove, and a plurality of the hexagonal grooves are evenly distributed along the circumference of the annular groove, and the inner sides of a plurality of the annular grooves are fixedly connected with hexagonal tubes, and a plurality of the ends of the hexagonal tubes away from the top cover are fixed to each other, and the hexagonal tubes are made of thermal insulation material, and the hexagonal tubes made of thermal insulation material can reduce the transfer of heat from the annular tube to the outside of the outer shell, and a plurality of circumferentially arranged hexagonal tubes form a honeycomb-like shape, which can evenly share the pressure when impacted, thereby obtaining a better anti-collision effect and avoiding damage to the outer shell.

[0011] Furthermore, a ring plate is fixedly connected to one end of the outer shell close to the top cover, and the ring plate is arranged inside the top cover, the outer side surface of the ring plate is fixedly connected to the inner side surface of the top cover, and the interior of the hexagonal tube is vacuum-arranged, and the ring plate is arranged to seal the end of the hexagonal tube to maintain the vacuum environment inside the hexagonal tube. The vacuum environment cannot conduct heat, and the vacuum interior of the hexagonal tube can better insulate the outside of the ring tube and reduce the transfer of heat to the external environment, thereby reducing the heating power of the heating wire, achieving energy-saving effects, and making the preparation of flocculants more green and efficient.

[0012] Furthermore, a hexagonal plug is fixedly connected to one side of the ring plate close to the outer shell, and the surface of the hexagonal plug is slidably connected to the inner side of the hexagonal tube, and a plurality of the hexagonal plugs are evenly distributed along the circumference of the ring plate, and the hexagonal plugs correspond to the hexagonal tubes one by one. The hexagonal plugs are provided to further seal the ends of the hexagonal tubes to better maintain the vacuum environment inside the hexagonal tubes. When the ring plate is loose, since the hexagonal plugs extend to the inside of the hexagonal tubes, the hexagonal plugs can always be located inside the hexagonal plugs even if they are loose. At the same time, under the action of the vacuum pressure, the hexagonal plugs are not easy to slide out, and can achieve a better sealing effect when the ring plate is loose.

[0013] The present invention provides a method and device for preparing a green and efficient flocculant for slurry, which has the following beneficial effects: 1. The present invention provides a preparation mechanism to inject chitosan and polyacrylamide solutions respectively through two feeding tubes. The two feeding tubes are provided separately, and when there are too much or too little chitosan and polyacrylamide solutions, the injection amount of the other solution can be adjusted at any time, thereby ensuring that the ratio of the two is always constant, ensuring that the composite flocculant solution is always unchanged, and the fixing seat fixes the motor to prevent the motor from vibrating significantly, and fixes the feeding tube to prevent the feeding tube from falling off.

[0014] 2. The present invention provides a stirring component, and the stirring frame rotates to stir the two solutions inside the shell to promote the recombination of the two solutions. The stirring blades rotate to increase the stirring area and obtain a better stirring effect. At the same time, the inclined stirring blades can drive the solution to rise when rotating, and while stirring, drive the upper and lower solutions to exchange, thereby obtaining a better mixing effect and avoiding stratification of the solution.

[0015] 3. The present invention ensures that the temperature of the solution is maintained within an appropriate range by setting a constant temperature component, ensuring the smooth compounding of the two solutions. The spirally arranged heating wire can achieve more uniform cooling during heating using one heating wire, thereby obtaining a better constant temperature effect. The annular cylinder of heat-conductive material can first absorb the heat emitted by the heating wire, and then transfer it to the solution through the outer shell, thereby making the temperature rise of the solution more uniform.

[0016] 4. The present invention arranges a hexagonal tube. The hexagonal tube made of a thermal insulation material can reduce the transfer of heat from the ring tube to the outside of the shell, and a number of circumferentially arranged hexagonal tubes form a honeycomb-like shape. When impacted, the pressure can be evenly shared to obtain a better anti-collision effect and avoid damage to the shell. The ring plate seals the end of the hexagonal tube to maintain the vacuum environment inside the hexagonal tube. The vacuum environment cannot conduct heat. The vacuum interior of the hexagonal tube can better insulate the outside of the ring tube and reduce the transfer of heat to the external environment, thereby reducing the heating power of the heating wire and achieving energy-saving effects, making the preparation of flocculants more green and efficient. The hexagonal plug further seals the end of the hexagonal tube to better maintain the vacuum environment inside the hexagonal tube. When the ring plate is loose, the hexagonal plug extends to the inside of the hexagonal tube. Even if the hexagonal plug is loose, it can always be located inside the hexagonal plug. At the same time, under the action of vacuum pressure, the hexagonal plug is not easy to slide out, and can achieve a better sealing effect when the ring plate is loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flowchart of the present invention; Figure 2 It is a schematic diagram of the preparation mechanism of the present invention; Figure 3 It is a schematic diagram of the feeding pipe of the present invention; Figure 4 This is a schematic diagram of the interior of the housing of the present invention; Figure 5 It is a schematic diagram of the stirring assembly of the present invention; Figure 6 This is a schematic diagram of the stirring blade of the present invention; Figure 7 This is a schematic diagram of the constant temperature assembly of the present invention; Figure 8 Schematic diagram of the ring groove of the present invention Fig. 9 Schematic diagram of the heating wire of the present invention Fig.10 Schematic diagram of the ring plate of the present invention.

[0018] In the figure: 1. outer shell; 2. top cover; 3. bracket; 4. preparation mechanism; 41. feeding pipe; 42. stirring assembly; 421. rotating shaft; 422. motor; 423. stirring frame; 424. stirring blade; 43. fixing seat; 44. feeding pipe; 45. constant temperature assembly; 451. ring groove; 452. hexagonal groove; 453. ring cylinder; 454. heating wire; 455. hexagonal cylinder; 456. ring plate; 457. hexagonal plug. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0020] For example, see Figure 1 , a method for preparing a green and efficient mud flocculant, comprising the following steps: S1. Material preparation: polyacrylamide with a molecular weight of about 1,200 cubic meters, chitosan with a deacetylation degree of more than 80%, ammonium persulfate as an initiator, N,N'-methylenebisacrylamide as a cross-linking agent, a dilute acetic acid solution with a concentration between 1% and 2%, and sufficient distilled water; S2. Pretreatment of polyacrylamide: dissolving polyacrylamide in distilled water to prepare a solution with a concentration of 1% to 2%, stirring evenly, and standing 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, stirring while adding to completely dissolve it, to obtain a chitosan solution with a concentration of 1% to 2%, the chitosan solution is heated to 40 to 50 degrees Celsius, and then an initiator ammonium persulfate is added in an amount of 1% to 2% of the mass of the chitosan, and stirred evenly, and then a cross-linking agent N,N'-methylenebisacrylamide is added in an amount of 0.5% to 1% of the mass of the chitosan, and stirring is continued, and the reaction is carried out at 40 to 50 degrees Celsius for two to three hours to allow the chitosan to undergo cross-linking and polymerization reactions; S4, preparation of composite flocculant, conveying chitosan to the preparation device, then slowly adding the pretreated polyacrylamide solution to the modified chitosan solution, the mass ratio of polyacrylamide to chitosan is 2:1 to 3:1, stirring and reacting at 50 to 60 degrees Celsius for 3 to 4 hours, so that the polyacrylamide and chitosan are fully composited; S5. Post-treatment: After the reaction is completed, the composite flocculant solution is naturally cooled to room temperature, filtered with filter paper to remove unreacted substances and impurities, washed with distilled water for two to three times, and dried in an oven at 60 to 70 degrees Celsius for eight to ten hours to obtain a powdered mud green and efficient flocculant.

[0021] For example 2, please refer to Figure 1-Figure 6 , the preparation device comprises: A housing 1, a top cover 2 is fixedly connected to the outer side of the housing 1, and a bracket 3 is fixedly connected to the outer side of the housing 1; The preparation mechanism 4 has a stirring structure for composite stirring of chitosan and polyacrylamide solution. The preparation mechanism 4 is fixedly connected to the side of the top cover 2 away from the outer shell 1. The chitosan and polyacrylamide solutions are respectively injected into the inner part of the outer shell 1, and the preparation mechanism 4 is started. The preparation mechanism 4 stirs the solution inside the outer shell 1 to fully composite the polyacrylamide and chitosan, and finally a powdered green and efficient mud flocculant is obtained through post-processing.

[0022] The preparation mechanism 4 includes a feeding pipe 41, two of which are symmetrically arranged on the side of the top cover 2 away from the outer shell 1, and the feeding pipe 41 is fixedly connected to the side of the top cover 2 away from the outer shell 1, and a discharge pipe 44 is fixedly connected to the side of the outer shell 1 away from the top cover 2. A stirring component 42 is arranged inside the outer shell 1, and a constant temperature component 45 is also arranged inside the outer shell 1. Chitosan and polyacrylamide solutions are respectively injected through the two feeding pipes 41, and after being fully stirred and compounded, they are discharged through the discharge pipe 44. The two feeding pipes 41 are separately arranged, and when the chitosan and polyacrylamide solutions are too much or too little, the injection amount of the other solution can be adjusted at any time, thereby ensuring that the ratio of the two is always constant, and ensuring that the compounded composite flocculant solution remains unchanged.

[0023] 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 surfaces of the two feeding tubes 41 respectively, and the fixing seat 43 is fixedly connected to the outer side surface of the feeding tube 41. The motor 422 is fixed by setting the fixing seat 43 to prevent the motor 422 from vibrating significantly, and the feeding tube 41 is fixed to prevent it from falling off.

[0024] A rotating shaft 421 is fixedly connected to one side of the motor 422 close to the outer shell 1, and 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 to the inside of the outer shell 1, and the surface of the rotating shaft 421 is rotatably connected to the inner side surface of the top cover 2. A stirring frame 423 is fixedly connected to the surface of the rotating shaft 421, and the stirring frame 423 is arranged inside the outer shell 1. The stirring frame 423 is rotatably connected to the inner side surface of the outer shell 1, and there are several stirring frames 423 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, and finally drives several stirring frames 423 to rotate, thereby stirring the two solutions inside the outer shell 1 and promoting the recombination of the two solutions.

[0025] A stirring blade 424 is fixedly connected to the inner side surface of the stirring frame 423 close to the top cover 2, and the side of the stirring blade 424 away from the top cover 2 is fixedly connected to the inner side surface of the adjacent stirring frame 423 away from the top cover 2, and the stirring blade 424 is tilted. There are several stirring blades 424 evenly distributed along the circumference of the rotating shaft 421. The stirring frame 423 rotates, driving 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 tilted stirring blade 424 can drive the solution to rise when rotating, and drive the upper and lower solutions to exchange while stirring, so as to obtain a better mixing effect and avoid stratification of the solution.

[0026] For example 3, please refer to Figure 1-Figure 10 The thermostatic component 45 includes an annular groove 451, which is opened on one side of the shell 1 close to the top cover 2. The inner side of the annular groove 451 is fixedly connected with an annular cylinder 453, and the annular cylinder 453 is made of a heat-conducting material. The inner side of the annular cylinder 453 is fixedly connected with an electric heating wire 454, and the electric heating wire 454 is spirally arranged. When the electric heating wire 454 is started, the electric heating wire 454 generates heat, and the heat is transferred to the annular cylinder 453, and then transferred to the shell 1, and finally transferred to the solution inside the shell 1, ensuring that the temperature of the solution is maintained within a suitable range and ensuring the smooth recombination of the two solutions. The spirally arranged electric heating wire 454 can use one electric heating wire 454 to achieve more uniform cooling during heating, thereby obtaining a better constant temperature effect. The annular cylinder 453 made of a heat-conducting material can first absorb the heat emitted by the electric heating wire 454, and then transfer it to the solution through the shell 1, so that the temperature of the solution rises more evenly.

[0027] A hexagonal groove 452 is also provided on one side of the outer shell 1 close to the top cover 2, and the hexagonal groove 452 is provided on the outer side of the annular groove 451, and there are several hexagonal grooves 452 evenly distributed along the circumference of the annular groove 451, and the inner sides of several annular grooves 451 are fixedly connected with hexagonal tubes 455, and the ends of several hexagonal tubes 455 away from the top cover 2 are fixed to each other, and the hexagonal tubes 455 are made of thermal insulation material. The hexagonal tubes 455 made of thermal insulation material can reduce the transfer of heat from the annular tube 453 to the outside of the outer shell 1, and several circumferentially arranged hexagonal tubes 455 form a honeycomb-like shape, which can evenly share the pressure when impacted, obtain better anti-collision effect, and avoid damage to the outer shell 1.

[0028] One end of the outer shell 1 close to the top cover 2 is fixedly connected with a ring plate 456, and the ring plate 456 is arranged inside the top cover 2, the outer side surface of the ring plate 456 is fixedly connected to the inner side surface of the top cover 2, and the internal vacuum setting of the hexagonal tube 455 is arranged, and the ring plate 456 is arranged to seal the end of the hexagonal tube 455 to maintain the vacuum environment inside the hexagonal tube 455. The vacuum environment cannot conduct heat, and the vacuum interior of the hexagonal tube 455 can better insulate the outside of the ring tube 453 and reduce the transfer of heat to the external environment, thereby reducing the heating power of the heating wire 454, achieving energy-saving effects, and making the preparation of flocculants more green and efficient.

[0029] A hexagonal plug 457 is fixedly connected to one side of the ring plate 456 close to the outer shell 1, and the surface of the hexagonal plug 457 is slidably connected to the inner side of the hexagonal tube 455, and there are a number of hexagonal plugs 457 evenly distributed along the circumference of the ring plate 456, and the hexagonal plugs 457 correspond to the hexagonal tube 455 one by one. The hexagonal plug 457 is provided to further seal the end of the hexagonal tube 455 to better maintain the vacuum environment inside the hexagonal tube 455. When the ring plate 456 is loose, since the hexagonal plug 457 extends to the inside of the hexagonal tube 455, the hexagonal plug 457 can always be located inside the hexagonal plug 457 even if it is loose. At the same time, under the action of vacuum pressure, the hexagonal plug 457 is not easy to slide out, which can achieve a better sealing effect when the ring plate 456 is loose.

[0030] When in use, chitosan and polyacrylamide solutions are respectively injected through two feeding tubes 41, and the motor 422 is started. The output end of the motor 422 drives the rotating shaft 421 to rotate, and finally drives several stirring frames 423 to rotate. The stirring frames 423 rotate, and drive the stirring blades 424 to rotate. At the same time, the heating wire 454 is started, and the heating wire 454 generates heat. The heat is transferred to the ring tube 453, and then transferred to the outer shell 1, and finally transferred to the solution inside the outer shell 1, ensuring that the temperature of the solution is maintained within a suitable range, and the two solutions are smoothly compounded. The hexagonal tube 455 made of thermal insulation material reduces the transfer of heat from the ring tube 453 to the outside of the outer shell 1. The vacuum interior of the hexagonal tube 455 insulates the outside of the ring tube 453, reduces the transfer of heat to the external environment, and reduces the heating power of the heating wire 454. After sufficient stirring and compounding, it is discharged through the discharge tube 44, and finally a powdered mud green and efficient flocculant is obtained through post-processing.

[0031] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A mud green and efficient flocculant preparation device, characterized in that: include: A housing (1), the outer side surface of the housing (1) being fixedly connected to a top cover (2), and the outer side surface of the housing (1) being fixedly connected to a bracket (3); A preparation mechanism (4), the preparation mechanism (4) having a stirring structure for composite stirring of chitosan and polyacrylamide solution, the preparation mechanism (4) being fixedly connected to a side of the top cover (2) away from the outer shell (1); A hexagonal groove (452) is further provided on a side of the shell (1) close to the top cover (2), and the hexagonal groove (452) is provided on the outside of the annular groove (451), and a plurality of the hexagonal grooves (452) are evenly distributed along the circumference of the annular groove (451), the inner side surfaces of a plurality of the annular grooves (451) are fixedly connected with a hexagonal tube (455), and the ends of a plurality of the hexagonal tubes (455) away from the top cover (2) are fixed to each other, and the hexagonal tubes (455) are made of a heat-insulating material; A ring plate (456) is fixedly connected to one end of the outer shell (1) close to the top cover (2), and the ring plate (456) is arranged inside the top cover (2), the outer side surface of the ring plate (456) is fixedly connected to the inner side surface of the top cover (2), and the interior of the hexagonal cylinder (455) is vacuum-arranged.

2. A mud green and efficient flocculant preparation device according to claim 1, characterized in that: The preparation mechanism (4) comprises a feeding pipe (41), two of which are symmetrically arranged on a side of the top cover (2) away from the outer shell (1), and the feeding pipe (41) is fixedly connected to a side of the top cover (2) away from the outer shell (1), a feeding pipe (44) is fixedly connected to a side of the outer shell (1) away from the top cover (2), a stirring component (42) is arranged inside the outer shell (1), and a constant temperature component (45) is also arranged inside the outer shell (1).

3. A mud green and efficient flocculant preparation device according to claim 2, characterized in that: The stirring assembly (42) comprises a motor (422), a fixing seat (43) being fixedly connected to the surface of the motor (422), the fixing seat (43) being fixedly connected to a side of the top cover (2) away from the outer shell (1), and two sides of the fixing seat (43) respectively extending to the surfaces of two feeding tubes (41), and the fixing seat (43) being fixedly connected to the outer side surface of the feeding tube (41).

4. A mud green and efficient flocculant preparation device according to claim 3, characterized in that: A rotating shaft (421) is fixedly connected to a side of the motor (422) close to the outer shell (1); the rotating shaft (421) is fixedly connected to an output end of the motor (422); the rotating shaft (421) passes through the top cover (2) and extends to the inside of the outer shell (1); the surface of the rotating shaft (421) is rotatably connected to the inner side surface 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 arranged inside the outer shell (1); the stirring frame (423) is rotatably connected to the inner side surface of the outer shell (1); and a plurality of stirring frames (423) are evenly distributed along the circumference of the rotating shaft (421).

5. The device for preparing a green and efficient slurry flocculant according to claim 4 is characterized in that: A stirring blade (424) is fixedly connected to the inner side surface of the stirring frame (423) close to the top cover (2); a side of the stirring blade (424) away from the top cover (2) is fixedly connected to the inner side surface of an adjacent stirring frame (423) away from the top cover (2); the stirring blade (424) is arranged obliquely; and a plurality of the stirring blades (424) are evenly distributed along the circumference of the rotating shaft (421).

6. A mud green and efficient flocculant preparation device according to claim 5, characterized in that: The thermostatic component (45) comprises an annular groove (451), the annular groove (451) being provided on a side of the outer shell (1) close to the top cover (2), the inner side surface of the annular groove (451) being fixedly connected to an annular cylinder (453), the annular cylinder (453) being made of a heat-conducting material, the inner side surface of the annular cylinder (453) being fixedly connected to an electric heating wire (454), and the electric heating wire (454) being spirally arranged.

7. The device for preparing a green and efficient sludge flocculant according to claim 6, characterized in that: A hexagonal plug (457) is fixedly connected to one side of the ring plate (456) close to the outer shell (1); the surface of the hexagonal plug (457) is slidably connected to the inner side surface of the hexagonal tube (455); and a plurality of the hexagonal plugs (457) are evenly distributed along the circumference of the ring plate (456); the hexagonal plugs (457) correspond one to one to the hexagonal tubes (455).

8. A method for preparing a green and efficient flocculant for slurry, using the preparation device according to claim 1, characterized in that: The following steps are involved: S1. Material preparation: polyacrylamide with a molecular weight of about 1,200 cubic meters, chitosan with a deacetylation degree of more than 80%, ammonium persulfate as an initiator, N,N'-methylenebisacrylamide as a cross-linking agent, a dilute acetic acid solution with a concentration between 1% and 2%, and sufficient distilled water; S2. Pretreatment of polyacrylamide: dissolving polyacrylamide in distilled water to prepare a solution with a concentration of 1% to 2%, stirring evenly, and standing 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, stirring while adding to completely dissolve it, to obtain a chitosan solution with a concentration of 1% to 2%, the chitosan solution is heated to 40 to 50 degrees Celsius, and then an initiator ammonium persulfate is added in an amount of 1% to 2% of the mass of the chitosan, and stirred evenly, and then a cross-linking agent N,N'-methylenebisacrylamide is added in an amount of 0.5% to 1% of the mass of the chitosan, and stirring is continued, and the reaction is carried out at 40 to 50 degrees Celsius for two to three hours to allow the chitosan to undergo cross-linking and polymerization reactions; S4, preparation of composite flocculant, conveying chitosan to the preparation device, then slowly adding the pretreated polyacrylamide solution to the modified chitosan solution, the mass ratio of polyacrylamide to chitosan is 2:1 to 3:1, stirring and reacting at 50 to 60 degrees Celsius for 3 to 4 hours, so that the polyacrylamide and chitosan are fully composited; S5. Post-treatment: After the reaction is completed, the composite flocculant solution is naturally cooled to room temperature, filtered with filter paper to remove unreacted substances and impurities, washed with distilled water for two to three times, and dried in an oven at 60 to 70 degrees Celsius for eight to ten hours to obtain a powdered mud green and efficient flocculant.

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