Preparation method and device of quaternized hydrolyzed wheat protein

Abstract

The invention discloses a preparation method and device of quaternized hydrolyzed wheat protein, and relates to the technical field of wheat protein manufacturing, a foam collecting tray is slidably connected with a scraper, the scraper is provided with a rack and a cross rod, the cross rod is parallel to the rack, the cross rod is slidably connected to a fixing seat of the foam collecting tray, and the foam collecting tray is provided with a plurality of baffles. The input end of the rack is connected with a gear in a meshed mode, the gear is arranged on a rotating rod, the input end of the rotating rod is connected with a conveying belt in a sleeved mode, the other end of the conveying belt is connected to a belt wheel in a sleeved mode, the belt wheel is arranged at the output end of a servo motor, and the servo motor is detachably connected to the top frame. When the rack horizontally moves, the rack can drive the scraper to move along the upper port of the buoy, the scraper can scrape foam into the foam collecting disc, and when the material flows into the mixing barrel, the foam can be prevented from flowing along with the material, so that the foam is removed, and the influence on processing is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wheat protein preparation, in particular to a method and a device for preparing quaternary ammonium hydrolyzed wheat protein. Background Art

[0002] Wheat protein hydrolysates are traditionally used as food additives, e.g. for flavor formation. Wheat protein hydrolysates are also used for protein fortification (e.g. in sports drinks), since wheat protein provides higher levels of glutamine than, e.g., soy protein, and in other dietary beverages, dry mix drinks, nutritional bars, etc., and in cosmetics, e.g. in the shampoo sector.

[0003] The wheat protein product was suspended in demineralized water as a 5% w / v suspension. The protein was slowly added to Milli Q water (room temperature) on a magnetic stirrer. The protein solution was dispersed for 15-30 minutes, but this process was prone to foaming, which affected processing. Summary of the invention

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the present invention provides a method for preparing quaternary ammonium hydrolyzed wheat protein and a method and device for preparing quaternary ammonium hydrolyzed wheat protein, so as to solve the problems of how to obtain high-quality quaternary ammonium hydrolyzed wheat protein and the presence of foam on the surface during the production process.

[0006] Technical Solution

[0007] To achieve the above object, the present invention is implemented by the following technical scheme: A method for preparing quaternary ammonium hydrolyzed wheat protein comprises the following steps:

[0008] Step 1: Add water into the reactor and heat it;

[0009] Step 2: Add the wheat gluten protein powder into the reactor while stirring;

[0010] Step 3: Add NaOH solution into the reactor and continue stirring to adjust the pH of the solution to 7-8;

[0011] Step 4: adding alkaline protease into the reactor;

[0012] Step 5: Maintain the temperature at 60-80°C and continue stirring and hydrolyzing for 6-10 hours;

[0013] Step 6: Heat the hydrolyzed solution to inactivate the enzyme at a temperature of 95-100°C;

[0014] Step 7: After the enzyme is inactivated, the solution is centrifuged or filtered to obtain a hydrolyzed wheat protein initial solution;

[0015] Step 8: performing secondary filtration on the initial hydrolyzed wheat protein solution to obtain a hydrolyzed wheat protein solution with a molecular weight of 1000D-3000D;

[0016] Step nine: concentrating the hydrolyzed wheat protein liquid to obtain a hydrolyzed wheat protein concentrate;

[0017] Step 10: Prepare hydrochloric acid with a molar concentration of 1.5 mol / L, add 1.1 times the molar amount of hydrogen chloride to dodecyl dimethyl tertiary amine under stirring, heat to 50° C., add 0.99 times the molar amount of dodecyl dimethyl tertiary amine to epichlorohydrin, and react to obtain reaction solution A;

[0018] Step 11: Cooling the reaction solution A to 25° C., adjusting the pH value of the reaction solution A to 11 with a 20% by mass sodium hydroxide aqueous solution, and reacting at 25° C. with stirring to obtain a reaction solution B;

[0019] Step 12: adding the aqueous solution of hydrolyzed wheat protein obtained in step 9 to reaction solution B, with the mass ratio of the aqueous solution of hydrolyzed wheat protein to reaction solution B being 1.2:1, heating to 70° C., stirring and reacting for 3 hours, to obtain reaction solution C;

[0020] Step 13: adjusting the pH value of the reaction solution C to 5 with hydrochloric acid, washing the reaction solution C with ethanol, and then concentrating it to obtain quaternary ammonium hydrolyzed wheat protein.

[0021] The invention discloses a device for preparing quaternized hydrolyzed wheat protein, comprising a lower tube, a servo motor, a mixing cylinder, an inlet tube and a discharge tube, wherein a float is arranged inside the mixing cylinder, a foam collecting plate is arranged at an upper port of the float, a scraper is slidably connected to the foam collecting plate, a rack and a cross bar are arranged on the scraper, the cross bar and the rack are parallel to each other, the cross bar is slidably connected to a fixed seat of the foam collecting plate, an input end of the rack is meshingly connected with a gear, the gear is arranged on a rotating rod, the input end of the rotating rod is sleeved with a conveyor belt, the other end of the conveyor belt is sleeved on a pulley, the pulley is arranged at the output end of the servo motor, and the servo motor is disassembled and connected to a top frame.

[0022] Preferably, a base is provided on the foam collecting plate, a rotating rod is rotatably connected to the base, the rotating rod is arranged vertically, and the rotating rod is respectively arranged on both sides of the port above the float.

[0023] Preferably, both sides of the upper port of the buoy are detachably connected with limit rods, a top plate is slidably connected to the limit rods, a push plate is provided on the top plate, and the diameter of the push plate is the same as the inner diameter of the buoy.

[0024] Preferably, an upper screw is provided on the central axis of the pulley, a lower screw is provided at the output end of the upper screw, and a thread on the upper screw is connected to the central axis of the push plate and the outer plate.

[0025] Preferably, the lower screw rod passes through the buoy, and a plug seat is threadedly connected to the lower screw rod at the output end of the buoy, and the plug seat is plugged into the corresponding output port of the buoy.

[0026] Preferably, the collection port of the foam collection plate is flush with the upper port of the float, the port diameter of the foam collection plate is larger than the upper port diameter of the float, the scraper is arranged in a long strip shape, the length of the scraper is larger than the diameter of the float, the rack and the cross bar are arranged in a two-shaped shape, the rack and the cross bar are located on both sides of the rotating rod, the conveyor belts on both sides are arranged in an up and down staggered manner, and the pulleys on the rotating rods on both sides have different heights.

[0027] Preferably, a worm is arranged on the upper screw inside the buoy, the worm and the upper screw are arranged in a straight line, and worm wheels are meshedly connected on both sides of the worm.

[0028] Preferably, a movable rod is provided on each side of the worm wheel, the movable rod is horizontally arranged on the buoy, one end of the movable rod is located outside the buoy, and a rotating head is provided on the movable rod outside the buoy.

[0029] Preferably, the rotating head is rotatably connected to a movable frame, the movable frame is rotatably connected to a vertical frame, the vertical frame is detachably connected to a dial plate, and the dial plate is slidably connected to the lower tube.

[0030] Beneficial Effects

[0031] The present invention provides a method and device for preparing quaternary ammonium hydrolyzed wheat protein, which has the following beneficial effects:

[0032] The method and device for preparing quaternized hydrolyzed wheat protein comprises the following steps: arranging a float in a mixing drum, on which an inlet pipe is installed, and materials first enter the float through the inlet pipe. As the materials are gradually mixed, the volume gradually increases, and foam is generated on the surface of the materials. When the volume of the foam increases, the foam is located at the upper port of the float. Then, a servo motor is started, the servo motor drives the pulley to rotate, the conveyor belt on the pulley drives the rotating rod to rotate as a whole, the gear on the rotating rod drives the meshed rack to move horizontally, and when the rack moves horizontally, the rack drives a scraper to move along the upper port of the float, and the scraper can scrape the foam into a foam collecting plate, and when the material flows into the mixing drum, the foam can be prevented from flowing along with the material, thereby achieving the removal of the foam and avoiding affecting the processing.

[0033] The method and device for preparing quaternized hydrolyzed wheat protein are as follows: a lower screw is arranged on an upper screw, the lower screw penetrates a float, a plug seat is threadedly connected to the lower screw at the output end of the float, and the plug seat moves up and down along the lower screw under a limit position, so that the plug seat is far away from or close to the input end of the float, and when the servo motor drives the upper screw to rotate, the lower screw also rotates, and when the scraper scrapes the foam on the surface of the float, the plug seat also gradually moves away from the float, so that the material in the float can be discharged from the inside of the float into the mixing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0036] Figure 3 It is a structural schematic diagram of the buoy in the present invention;

[0037] Figure 4 It is a structural schematic diagram of the push plate in the present invention;

[0038] Figure 5 It is a schematic diagram of the enlarged structure of region A in the present invention;

[0039] Figure 6 It is a structural schematic diagram of the movable frame in the present invention;

[0040] Figure 7 It is a connection diagram of the paddle in the present invention;

[0041] Figure 8 It is a schematic diagram of the enlarged structure of area B in the present invention.

[0042] In the figure:

[0043] 1. Mixing barrel; 2. Discharge pipe; 3. Top frame; 4. Servo motor; 5. Inlet pipe; 6. Foam collecting plate; 7. Lower pipe; 8. Float; 9. Blocking seat; 10. Lower screw; 11. Rotating rod; 12. Conveyor belt; 13. Limiting rod; 14. Pulley; 15. Top plate; 16. Push plate; 17. Upper screw; 18. Scraper; 19. Fixed seat; 20. Base; 21. Gear; 22. Rack; 23. Cross bar; 24. Paddle plate; 25. Vertical frame; 26. Movable frame; 27. Rotating head; 28. Worm; 29. ​​Worm wheel; 30. Movable rod. DETAILED DESCRIPTION

[0044] 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.

[0045] The present invention provides a method for preparing quaternary ammonium hydrolyzed wheat protein, comprising the following steps:

[0046] The preparation of quaternized hydrolyzed wheat protein is mainly divided into two steps. The first step is the preparation of hydrolyzed wheat, and the second step is the quaternization reaction of hydrolyzed wheat protein.

[0047] First step:

[0048] 1. Add 1000 parts of water into the reactor and heat it to a temperature between 50-60°C.

[0049] 2. Weigh 500 parts of wheat gluten protein powder and add it into the reactor while stirring.

[0050] 3. Add NaOH solution into the reactor and continue stirring. Measure the pH of the solution with a pH meter and adjust the pH of the solution to 7-8.

[0051] 4. Weigh 10 parts of alkaline protease and add it into the reactor.

[0052] 5. Maintain the temperature at 60-80°C and continue stirring and hydrolyzing for 6-10 hours.

[0053] 6. Heat the hydrolyzed solution to inactivate the enzyme at 98°C for 30 minutes.

[0054] 7. After the enzyme is inactivated, the solution is centrifuged or filtered to obtain the initial solution of hydrolyzed wheat protein, mainly filtering out larger residues.

[0055] 8. Perform secondary filtration on the initial hydrolyzed wheat protein solution to obtain a hydrolyzed wheat protein solution with a molecular weight of 1000D-3000D.

[0056] 9. Concentrate the hydrolyzed wheat protein liquid to obtain a hydrolyzed wheat protein concentrate having a concentration of 30%.

[0057] Second step:

[0058] 10. Prepare hydrochloric acid with a molar concentration of 1.5 mol / L and add hydrogen chloride under stirring at 260 rpm.

[0059] 1.1 times the molar amount of dodecyl dimethyl tertiary amine, heated to 50°C, added dodecyl dimethyl tertiary amine

[0060] 0.99 times of epichlorohydrin was added, and the reaction was continued for 4 hours to obtain reaction solution A;

[0061] 11. Cool the reaction solution A to 25°C and adjust the reaction with a 20% sodium hydroxide aqueous solution.

[0062] The pH value of liquid A was adjusted to 11, and the mixture was stirred at 25° C. and 260 rpm for 2 hours to obtain reaction liquid B;

[0063] 12. Add the aqueous solution of hydrolyzed wheat protein obtained in step 9 to reaction solution B, the mass ratio of the aqueous solution of hydrolyzed wheat protein to reaction solution B is 1.2:1, heat to 70° C., stir at 260 rpm for 3 hours to obtain reaction solution C;

[0064] 13. The pH value of the reaction solution C is adjusted to 5 with hydrochloric acid, and the reaction solution C is washed with ethanol, and then concentrated to obtain quaternary ammonium hydrolyzed wheat protein with a concentration of 30%.

[0065] See also Figure 1-Figure 8 The present invention provides a device for preparing quaternized hydrolyzed wheat protein, comprising a lower tube 7, a servo motor 4, a mixing drum 1, an inlet tube 5 and a discharge tube 2, wherein a float 8 is arranged inside the mixing drum 1, a foam collecting plate 6 is arranged at the upper port of the float 8, a scraper 18 is slidably connected to the foam collecting plate 6, a rack 22 and a cross bar 23 are arranged on the scraper 18, the cross bar 23 and the rack 22 are parallel to each other, the cross bar 23 is slidably connected to a fixed seat 19 of the foam collecting plate 6, an input end of the rack 22 is meshedly connected with a gear 21, the gear 21 is arranged on a rotating rod 11, the input end of the rotating rod 11 is sleeved with a conveyor belt 12, the other end of the conveyor belt 12 is sleeved on a pulley 14, the pulley 14 is arranged at the output end of the servo motor 4, and the servo motor 4 is disassembled and connected to the top frame 3.

[0066] When foam is generated on the material, the servo motor 4 is started, and the servo motor 4 drives the pulley 14 to rotate. The conveyor belt 12 on the pulley 14 drives the rotating rod 11 to rotate as a whole. The gear 21 on the rotating rod 11 drives the meshing rack 22 to move horizontally. When the rack 22 moves horizontally, the rack 22 drives the scraper 18 to move along the upper port of the float 8. The scraper 18 can scrape the foam into the foam collection plate 6. When the material flows into the mixing barrel 1, the foam can be prevented from flowing with the material, thereby realizing the removal of the foam and avoiding affecting the processing. By arranging a lower screw 10 on the upper screw 17, the lower screw 10 penetrates the buoy 8, and the lower screw 10 at the output end of the buoy 8 is threadedly connected to the blocking seat 9. The blocking seat 9 can move up and down along the lower screw 10 under the limit, and the blocking seat 9 will move away from or close to the input end of the buoy 8. When the servo motor 4 drives the upper screw 17 to rotate, the lower screw 10 will also rotate. When the scraper 18 scrapes the foam on the surface of the buoy 8, the blocking seat 9 will gradually move away from the buoy 8, so that the material in the buoy 8 can be discharged from the inside of the buoy 8 to the mixing drum 1.

[0067] The foam collecting plate 6 is provided with a base 20, and a rotating rod 11 is rotatably connected to the base 20. The rotating rod 11 is arranged vertically and is respectively provided on both sides of the port above the buoy 8. By providing the rotating rod 11 on the base 20, the rotating rod 11 can be rotated on the base 20, so that the rotating rod 11 will not be offset, thereby ensuring that the gear 21 on the rotating rod 11 and the rack 22 are meshed with each other.

[0068] The two sides of the upper port of the buoy 8 are detachably connected to the limit rod 13, and the limit rod 13 is slidably connected to the top plate 15, and the top plate 15 is provided with a push plate 16, and the diameter of the push plate 16 is the same as the inner diameter of the buoy 8. The setting of the limit rod 13 can realize the limit of the outer plate, and when the outer plate is driven by the upper screw 17, it will not rotate with the upper screw 17, and the outer plate can move up and down along the upper screw 17.

[0069] An upper screw rod 17 is arranged at the central axis position of the pulley 14, and a lower screw rod 10 is arranged at the output end of the upper screw rod 17. The upper screw rod 17 is threadedly connected to the push plate 16 and the central axis position of the outer plate. By arranging the pulley 14 on the servo motor 4, the servo motor 4 will drive the pulley 14 to rotate, and when the pulley 14 rotates, it can be transmitted through the conveyor belt 12, thereby driving the rotating rod 11 to rotate.

[0070] The lower screw 10 penetrates the buoy 8, and a plug seat 9 is threadedly connected to the lower screw 10 at the output end of the buoy 8, and the plug seat 9 is plugged into the corresponding output port of the buoy 8. By arranging the lower screw 10 on the buoy 8, the lower screw 10 can be connected to the plug seat 9, and the plug seat 9 can be away from the buoy 8, so that the matched materials are discharged into the mixing cylinder 1.

[0071] The collection port of the foam collection plate 6 is flush with the upper port of the float 8, and the port diameter of the foam collection plate 6 is larger than the upper port diameter of the float 8; the scraper 18 is arranged in a long strip shape, and the length of the scraper 18 is larger than the diameter of the float 8; the rack 22 and the cross bar 23 are arranged in a two-shaped shape, and the rack 22 and the cross bar 23 are located on both sides of the rotating rod 11; the conveyor belts 12 on both sides are arranged in an up and down staggered manner, and the pulleys 14 on the rotating rods 11 on both sides are at different heights.

[0072] A worm 28 is provided on the upper screw 17 inside the buoy 8, and the worm 28 and the upper screw 17 are arranged in a straight line, and the two sides of the worm 28 are respectively meshed and connected with a worm wheel 29. By providing the worm 28 on the upper screw 17, when the upper screw 17 rotates, the worm 28 can be driven to rotate, and the worm 28 can drive the worm wheel 29 to rotate.

[0073] A movable rod 30 is arranged on each side of the worm wheel 29, and the movable rod 30 is arranged horizontally on the buoy 8, and one end of the movable rod 30 is located outside the buoy 8, and a rotating head 27 is arranged on the movable rod 30 outside the buoy 8. When the worm wheel 29 is driven by the worm 28, the movable rod 30 is driven to rotate, and the movable rod 30 can drive the rotating head 27 to rotate.

[0074] The rotating head 27 is rotatably connected with a movable frame 26, and the movable frame 26 is rotatably connected with a vertical frame 25, and the vertical frame 25 is detachably connected to the paddle plate 24, and the paddle plate 24 is slidably connected to the lower tube 7. When the rotating head 27 rotates, it pulls the movable frame 26 up and down, and when the movable frame 26 moves up and down, it can drive the vertical frame 25 up and down, and the vertical frame 25 can drive the paddle plate 24 up and down, and the paddle plate 24 can paddle the mixed liquid to mix it quickly.

[0075] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0076] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only for some logical functions, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0077] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0078] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A method for preparing quaternary ammonium hydrolyzed wheat protein, characterized in that: The following steps are involved: Step 1: Add water into the reactor and heat it; Step 2: Add the wheat gluten protein powder into the reactor while stirring; Step 3: Add NaOH solution into the reactor and continue stirring to adjust the pH of the solution to 7-8; Step 4: adding alkaline protease into the reactor; Step 5: Maintain the temperature at 60-80°C and continue stirring and hydrolyzing for 6-10 hours; Step 6: Heat the hydrolyzed solution to inactivate the enzyme at a temperature of 95-100°C; Step 7: After the enzyme is inactivated, the solution is centrifuged or filtered to obtain a hydrolyzed wheat protein initial solution; Step 8: performing secondary filtration on the initial hydrolyzed wheat protein solution to obtain a hydrolyzed wheat protein solution with a molecular weight of 1000D-3000D; Step nine: concentrating the hydrolyzed wheat protein liquid to obtain a hydrolyzed wheat protein concentrate; Step 10: Prepare hydrochloric acid with a molar concentration of 1.5 mol / L, add 1.1 times the molar amount of hydrogen chloride to dodecyl dimethyl tertiary amine under stirring, heat to 50° C., add 0.99 times the molar amount of dodecyl dimethyl tertiary amine to epichlorohydrin, and react to obtain reaction solution A; Step 11: Cooling the reaction solution A to 25° C., adjusting the pH value of the reaction solution A to 11 with a 20% by mass sodium hydroxide aqueous solution, and reacting at 25° C. with stirring to obtain a reaction solution B; Step 12: adding the aqueous solution of hydrolyzed wheat protein obtained in step 9 to reaction solution B, with the mass ratio of the aqueous solution of hydrolyzed wheat protein to reaction solution B being 1.2:1, heating to 70° C., stirring and reacting for 3 hours, to obtain reaction solution C; Step 13: adjusting the pH value of the reaction solution C to 5 with hydrochloric acid, washing the reaction solution C with ethanol, and then concentrating it to obtain quaternary ammonium hydrolyzed wheat protein.

2. A device for preparing quaternary ammonium hydrolyzed wheat protein, used in the method for preparing quaternary ammonium hydrolyzed wheat protein according to claim 1, characterized in that: The invention comprises a lower tube (7), a servo motor (4), a mixing cylinder (1), an inlet tube (5) and a discharge tube (2); a buoy (8) is arranged inside the mixing cylinder (1); a foam collecting plate (6) is arranged at the upper port of the buoy (8); a scraper (18) is slidably connected to the foam collecting plate (6); a rack (22) and a cross bar (23) are arranged on the scraper (18); the cross bar (23) and the rack (22) are parallel to each other; the cross bar (23) is slidably connected to the foam collecting plate (6); The rack (22) is movably connected to a fixed seat (19) of a foam collecting plate (6); the input end of the rack (22) is meshedly connected to a gear (21); the gear (21) is arranged on a rotating rod (11); the input end of the rotating rod (11) is sleeved with a conveyor belt (12); the other end of the conveyor belt (12) is sleeved on a pulley (14); the pulley (14) is arranged at the output end of a servo motor (4); and the servo motor (4) is disassembled and connected to a top frame (3).

3. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 2, characterized in that: The foam collecting plate (6) is provided with a base (20), and a rotating rod (11) is rotatably connected to the base (20). The rotating rod (11) is arranged vertically and is respectively arranged on both sides of the port above the buoy (8).

4. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 2, characterized in that: The two sides of the upper port of the buoy (8) are detachably connected to limit rods (13), the limit rods (13) are slidably connected to a top plate (15), the top plate (15) is provided with a push plate (16), and the diameter of the push plate (16) is the same as the inner diameter of the buoy (8).

5. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 2, characterized in that: An upper screw rod (17) is arranged at the central axis position of the pulley (14), a lower screw rod (10) is arranged at the output end of the upper screw rod (17), and the upper screw rod (17) is threadedly connected to the central axis position of the push plate (16) and the outer plate.

6. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 5, characterized in that: The lower screw rod (10) passes through the buoy (8), and a plug seat (9) is threadedly connected to the lower screw rod (10) at the output end of the buoy (8), and the plug seat (9) is plugged into the corresponding output port of the buoy (8).

7. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 2, characterized in that: The collection port of the foam collection plate (6) is flush with the upper port of the float (8), the port diameter of the foam collection plate (6) is larger than the upper port diameter of the float (8), the scraper (18) is arranged in a long strip shape, the length of the scraper (18) is larger than the diameter of the float (8), the rack (22) and the cross bar (23) are arranged in a two-shaped pattern, the rack (22) and the cross bar (23) are located on both sides of the rotating rod (11), the conveyor belts (12) on both sides are arranged in an up-and-down staggered manner, and the pulleys (14) on the rotating rods (11) on both sides have different heights.

8. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 2, characterized in that: A worm (28) is arranged on the upper screw (17) inside the buoy (8), the worm (28) and the upper screw (17) are arranged in a straight line, and worm wheels (29) are respectively meshed and connected on both sides of the worm (28).

9. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 8, characterized in that: A movable rod (30) is provided on each side of the worm wheel (29). The movable rod (30) is horizontally arranged on the buoy (8). One end of the movable rod (30) is located outside the buoy (8). A rotating head (27) is provided on the movable rod (30) outside the buoy (8).

10. The device for preparing quaternary ammonium hydrolyzed wheat protein according to claim 9, characterized in that: The rotating head (27) is rotatably connected to a movable frame (26), the movable frame (26) is rotatably connected to a vertical frame (25), the vertical frame (25) is detachably connected to a shifting plate (24), and the shifting plate (24) is slidably connected to the lower tube (7).

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