Small mixing reactor for cationic starch production

Abstract

The utility model relates to the technical field of cationic starch production, and discloses a small-sized mixing reactor for cationic starch production, which comprises a reaction shell, a stirring shaft is rotatably mounted on the inner side wall of the reaction shell, stirring blades are fixedly mounted on the outer side wall of the stirring shaft, a gear is mounted at one end of the stirring shaft in a locking manner, and the other end of the stirring shaft is fixedly connected with the reaction shell. The top and the bottom of the gear are in meshed connection with an upper rack and a lower rack respectively, two fixed sliding nails are fixedly installed at the corresponding positions of the upper portion of one side of the outer side wall of the reaction shell, and the inner side wall of the upper rack is provided with a sliding groove and is slidably connected to the outer side walls of the two fixed sliding nails through the sliding groove; according to the small mixing reactor for cationic starch production disclosed by the utility model, the stirring assembly is driven to rotate back and forth in a reciprocating manner by adopting the reciprocating type rotary driving assembly consisting of the hydraulic rod, the gear and the lower rack, the stirring effect is better, and the upper part of the gear is meshed and connected with the upper rack which is glidingly connected outside the reaction shell through the sliding assembly, so that the stability maintaining effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of cationic starch production, in particular to a small mixing reactor for cationic starch production. Background Technique

[0002] Cationic starch usually refers to the product obtained by reacting starch with cationic reagents (commonly called etherifying agents) under certain conditions. The cationic reagents mainly include tertiary amine salt-based and quaternary ammonium salt-based cationic reagents. The positive charge of cationic starch enables it to bind to negatively charged substrates and adsorb and retain other negatively charged additives on the substrates. During the processing of cotton fibers, they often carry negative charges when rubbing against metal parts, which is even more serious for hydrophobic synthetic fibers. When sizing with positively charged cationic starch, not only will there be good adhesion, but also the effect of eliminating static electricity. The production of cationic starch requires a mixing reactor to mix starch and cationic reagents for production.

[0003] The existing small mixing reactors for cationic starch production usually drive the stirring assembly to stir by an electric motor, rotating in the same direction, and the mixing effect is not good enough. While the stirring assembly driven by the existing reciprocating rotating assembly reciprocates and rotates, the stability is not good. Content of the Utility Model

[0004] The purpose of the utility model is to provide a small mixing reactor for cationic starch production. The small mixing reactor for cationic starch production disclosed by the utility model adopts a reciprocating rotation drive assembly composed of a hydraulic rod, a gear, and a lower rack to drive the stirring assembly to reciprocate back and forth, with a better stirring effect. And the upper part of the gear is meshed and connected with an upper rack that is slidably connected outside the reaction shell through a sliding assembly, with good stability maintenance effect, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A small mixing reactor for cationic starch production, including a reaction shell, a stirring shaft is rotatably installed on the inner side wall of the reaction shell, stirring blades are fixedly installed on the outer side wall of the stirring shaft, a gear is lockingly installed at one end of the stirring shaft, the top and bottom of the gear are respectively meshed and connected with an upper rack and a lower rack, two fixed sliding pins are fixedly installed at the corresponding position on the upper part of one side of the outer side wall of the reaction shell, a chute is opened on the inner side wall of the upper rack and is slidably connected to the outer side walls of the two fixed sliding pins through the chute, and the power input end of the lower rack is connected to the power output end of a hydraulic rod.

[0006] Preferably, a discharge port is opened at the lower part of the other side of the outer side wall of the reaction shell, and the discharge port is blocked by a sealing cover.

[0007] Preferably, a top cover is hinged to the opening at the top of the reaction shell through a hinge.

[0008] Preferably, a chassis is installed at the bottom of the reaction shell, and a bottom water tank is installed between the reaction shell and the chassis.

[0009] Preferably, the opening at the top of the bottom water tank is closely attached to the bottom of the reaction shell, and a heating component is installed in the bottom water tank.

[0010] Preferably, the reaction shell is made of a metal material with good heat transfer effect.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The small mixing reactor for cationic starch production disclosed by the present utility model adopts a reciprocating rotary drive assembly composed of a hydraulic rod, a gear, and a lower rack to drive the stirring assembly to rotate back and forth, with better stirring effect. Moreover, an upper rack that is meshed with the upper part of the gear and slidably connected to the outside of the reaction shell through a sliding assembly has good stability, solving the problem that the small mixing reactor for existing cationic starch production usually drives the stirring assembly to stir by an electric motor and rotates in the same direction, resulting in poor mixing effect, while the reciprocating rotation of the stirring assembly driven by the existing reciprocating rotary assembly has poor stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is Figure 1 the schematic diagram of the structure at A in

[0015] Figure 3 is a schematic sectional structure diagram of the present utility model;

[0016] Figure 4 is a schematic diagram of the overall structure of the present utility model.

[0017] In the figure: 1, reaction shell; 2, hinge; 3, top cover; 4, bottom water tank; 5, chassis; 6, upper rack; 7, chute; 8, fixed slide nail; 9, gear; 10, lower rack; 11, hydraulic rod; 12, stirring shaft; 13, stirring blade; 14, heating component; 15, sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer toFigures 1-4 , a small mixing reactor for the production of cationic starch in the figure, including a reaction shell 1. A stirring shaft 12 is rotatably installed on the inner side wall of the reaction shell 1. Stirring blades 13 are fixedly installed on the outer side wall of the stirring shaft 12. One end of the stirring shaft 12 is lockingly installed with a gear 9. The upper and lower parts of the gear 9 are respectively meshed and connected with an upper rack 6 and a lower rack 10. Two fixing studs 8 are fixedly installed at the corresponding upper part on one side of the outer side wall of the reaction shell 1. A chute 7 is opened on the inner side wall of the upper rack 6 and is slidably connected to the outer side walls of the two fixing studs 8 through the chute 7. The power input end of the lower rack 10 is connected to the power output end of a hydraulic rod 11. The small mixing reactor for the production of cationic starch disclosed by the utility model adopts a reciprocating rotary drive assembly composed of the hydraulic rod 11, the gear 9, and the lower rack 10 to drive the stirring assembly to reciprocate back and forth, with better stirring effect. Moreover, the upper part of the gear 9 is meshed and connected with an upper rack 6 that is slidably connected outside the reaction shell 1 through a sliding assembly, and the stability maintenance effect is good.

[0020] Furthermore, a discharge port is opened at the lower part on the other side of the outer side wall of the reaction shell 1, and the discharge port is blocked by a sealing cover 15, which is convenient for discharging materials; furthermore, a top cover 3 is hinged to the opening at the top of the reaction shell 1 through a hinge 2, which is convenient for adding materials; furthermore, a bottom frame 5 is installed at the bottom of the reaction shell 1, and a bottom water tank 4 is installed between the reaction shell 1 and the bottom frame 5, which is convenient for holding water; furthermore, the opening at the top of the bottom water tank 4 is closely attached to the bottom of the reaction shell 1, and a heating assembly 14 is installed in the bottom water tank 4, which is convenient for heating the water in the bottom water tank 4; furthermore, the reaction shell 1 is made of a metal material with good heat transfer effect, which is convenient for using the bottom water tank 4 and the heating assembly 14 in the bottom water tank 4 to heat the reaction shell 1 to promote the reaction.

[0021] In this solution, when in use, the small mixing reactor for the production of cationic starch disclosed by the utility model adopts a reciprocating rotary drive assembly composed of the hydraulic rod 11, the gear 9, and the lower rack 10 to drive the stirring assembly to reciprocate back and forth, with better stirring effect. Moreover, the upper part of the gear 9 is meshed and connected with an upper rack 6 that is slidably connected outside the reaction shell 1 through a sliding assembly, and the stability maintenance effect is good. First, put the starch, cationic reagent and other materials that need to participate in the reaction into the reaction shell 1, close the top cover 3, supply power from the external power supply, and turn on the hydraulic rod 11 through an external switch. The hydraulic rod 11 makes a reciprocating telescopic motion along a straight line. When the hydraulic rod 11 extends, it drives the lower rack 10 to move rightward. Since the upper part of the lower rack 10 is meshed and connected with the gear 9, the gear 9, the stirring shaft 12 and the stirring blades 13 rotate counterclockwise as a whole. The upper rack 6 meshed with the top of the gear 9 moves leftward. The upper rack 6 stably moves leftward along the outer side walls of the two fixing studs 8 through the chute 7 inside it, ensuring that the gear 9 rotates stably and is difficult to be disengaged. When the hydraulic rod 11 shortens, the gear 9, the stirring shaft 12 and the stirring blades 13 rotate clockwise as a whole, and the principle is the same as above (both the hydraulic rod 11 and the heating assembly 14 are existing products on the market).

[0022] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small mixing reactor for producing cationic starch, comprising a reaction shell (1), wherein a stirring shaft (12) is rotatably mounted on the inner wall of the reaction shell (1), and a stirring blade (13) is fixedly mounted on the outer wall of the stirring shaft (12), characterized in that: A gear (9) is locked and installed at one end of the stirring shaft (12); the top and bottom of the gear (9) are respectively meshed and connected with an upper rack (6) and a lower rack (10); two fixed sliding nails (8) are fixedly installed at corresponding positions on the upper part of one side of the outer wall of the reaction shell (1); a sliding groove (7) is provided on the inner wall of the upper rack (6) and is slidably connected to the outer wall of the two fixed sliding nails (8) through the sliding groove (7); and the power input end of the lower rack (10) is connected to the power output end of the hydraulic rod (11).

2. A small mixing reactor for producing cationic starch according to claim 1, characterized in that: A discharge port is provided at the lower part of the other side of the outer wall of the reaction shell (1), and a sealing cover (15) is provided at the discharge port.

3. The small mixing reactor for producing cationic starch according to claim 1, characterized in that: A top cover (3) is hingedly connected to the top opening of the reaction shell (1) via a hinge (2).

4. The small mixing reactor for producing cationic starch according to claim 1, characterized in that: A bottom frame (5) is installed at the bottom of the reaction shell (1), and a bottom water tank (4) is installed between the reaction shell (1) and the bottom frame (5).

5. The small mixing reactor for producing cationic starch according to claim 4, characterized in that: The top opening of the bottom water tank (4) is in close contact with the bottom of the reaction shell (1), and a heating component (14) is installed in the bottom water tank (4).

6. A small mixing reactor for producing cationic starch according to claim 5, characterized in that: The reaction shell (1) is made of a metal material with good heat transfer effect.

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