Multi-stage stirring structure of horizontal etherification kettle

Abstract

The utility model discloses a multi-stage stirring structure of a horizontal etherification kettle, which belongs to the technical field of etherification and is characterized in that a first stirrer and a second stirrer are arranged in a kettle body of the horizontal etherification kettle, so that axial and radial multi-stage stirring can be realized; the left side and the right side of the first stirring shaft are respectively and fixedly connected with a plurality of first stirring paddles which are distributed in parallel at 90 degrees along the axis of the stirring shaft, and the first stirring paddles of the plurality of first stirrers are distributed in a staggered manner. The second stirring paddle is a hacking knife type stirring paddle, so that the stirring shearing force on high-viscosity materials is larger. And due to the arrangement of the multi-stage stirring structure, materials are uniformly dispersed and fully stirred in the kettle, and the stirring effect of the materials in the kettle is improved, so that material residues are reduced, and the product quality is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of etherification technology, specifically relating to a multi-stage stirring structure for a horizontal etherification kettle. Background Art

[0002] Carboxymethyl cellulose (CMC) is an important cellulose derivative widely used in the food, pharmaceutical, paper, and petroleum industries. Its production primarily involves etherification, but in actual production, material residue within the reactor is a significant issue. Particularly during etherification, the high viscosity of the material and incomplete localized reactions often cause it to adhere to the equipment, affecting the quality of subsequent products.

[0003] Currently, most commercially available etherification reactors use single-stage stirring structures, which cannot adequately and evenly mix high-viscosity materials, resulting in insufficient and unsatisfactory stirring effects. To address this issue, a novel multi-stage stirring structure for a horizontal etherification reactor has been designed. This structure effectively achieves high-efficiency stirring, avoids material residue, improves stirring effect and production efficiency, thereby ensuring product quality. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage stirring structure for a horizontal etherification reactor, which can improve the stirring effect of materials inside the reactor, reduce material residue, and improve production efficiency and product quality. This stirring mechanism, through multi-stage distributed stirring devices, ensures that materials are fully stirred and evenly dispersed within the reactor, effectively reducing the risk of residue forming impurities.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-stage stirring structure for a horizontal etherification reactor, comprising a reactor body, wherein a plurality of vertically distributed first stirrers are provided inside the reactor body, and a plurality of horizontally distributed second stirrers are provided at the bottom of the reactor body.

[0006] In use, the horizontal etherification kettle is equipped with a first agitator and a second agitator inside the kettle body. When the material enters the horizontal etherification kettle body, it is first stirred by the first agitator. Due to gravity, some of the insufficiently mixed material will settle at the bottom of the kettle body. The second agitator can further stir the insufficiently mixed material, thereby realizing multi-stage stirring in the axial and radial directions, so that the material is evenly dispersed and fully stirred in the kettle, improving the stirring effect of the material in the kettle and reducing material residue.

[0007] Preferably, the first stirrer includes a first stirring shaft and a first stirring paddle. Multiple first stirring paddles are fixedly connected to the left and right sides of the first stirring shaft and are arranged in parallel at 90° along the axis of the stirring shaft. The first stirring paddles of the plurality of first stirrers are staggered with each other.

[0008] In this preferred embodiment, the first agitator is installed at both the upper and lower ends of the vessel body. The first stirring blades are respectively installed at different heights on the left and right sides of the first stirring shaft, and are arranged in parallel at 90° along the axis of the stirring shaft. Furthermore, the first stirring blades of the first agitator are staggered with each other, which expands the stirring range and improves the stirring capacity.

[0009] Preferably, the second agitator includes a second agitator shaft and a second agitator blade, the second agitator blade being circumferentially distributed on the second agitator shaft. The cross-section of the second agitator blade is a chopper-shaped agitator blade with one side curved and one side straight.

[0010] In this preferred embodiment, the cross-section of the second stirring paddle is designed as a chopper-shaped stirring paddle with one side curved and the other side straight. During rotation, the curved side of the stirring paddle can effectively reduce stirring resistance and reduce unit power consumption. The chopper-shaped stirring paddle has a greater stirring shear force for high-viscosity materials, thus improving the stirring effect.

[0011] As an optimization, the first stirrer is connected to a first motor, and the second stirrer is connected to a second motor. The first and second motors are connected to the main power unit via wiring. The main power unit is equipped with operation buttons.

[0012] In this preferred embodiment, the first and second agitators are controlled by a main power unit via a motor. The main power unit is equipped with buttons for operating the first and second agitators respectively. During operation, the operation buttons on the main power unit are activated, and the first and second agitators can mix the materials under the power supply of the motor.

[0013] As an optimization, the vessel body is provided with a feed inlet and a discharge outlet, and a vessel body base frame is fixedly installed at the bottom of the vessel body.

[0014] In this preferred embodiment, the material is added into the reactor through the feed inlet, and the generated carboxymethyl cellulose is discharged through the discharge outlet. The reactor base installed at the bottom of the reactor can further improve the stability of the etherification reactor during stirring.

[0015] The beneficial effects of this utility model by adopting the above technical solution are:

[0016] 1. The horizontal etherification reactor is equipped with a first agitator and a second agitator inside the reactor body, which can realize multi-stage axial and radial stirring, so that the material is evenly dispersed and fully stirred in the reactor, improving the stirring effect of the material in the reactor and thus reducing material residue.

[0017] 2. The first agitator is installed at both the upper and lower ends of the vessel. The first agitator blades are installed at different heights on both sides of the first agitator shaft, and are arranged parallel to each other at 90° along the axis of the agitator shaft. The first agitator blades are staggered with each other, which expands the agitation range and improves the agitation capacity.

[0018] 3. When the material enters the body of the horizontal etherification kettle, it is first stirred by the first agitator. Due to gravity, the material that has not been evenly stirred by the first agitator can be further stirred by the second agitator. The second agitator is a chopper-type agitator, which can effectively reduce stirring resistance, reduce unit power consumption, and has a greater stirring shear force for high viscosity materials, thus improving the stirring effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the multi-stage stirring structure inside a horizontal etherification reactor.

[0020] Figure 2 This is an enlarged view of the second stirrer.

[0021] In the diagram: 1. Vessel body; 2. Feed inlet; 3. Discharge outlet; 4. First agitator; 5. Second agitator; 6. First agitator shaft; 7. First agitator paddle; 8. First motor; 9. Second motor; 10. Main power unit; 11. Operation button; 12. Vessel body base frame; 13. Second agitator paddle; 14. Second agitator shaft. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] Please see Figure 1 , 2 , the utility model provides a technical solution:

[0024] A multi-stage stirring structure for a horizontal etherification reactor includes a reactor body 1. The reactor body 1 contains several vertically distributed first stirrers 4, and several horizontally distributed second stirrers 5 are located at the bottom of the reactor body 1. Each first stirrer 4 includes a first stirring shaft 6 and a first stirring paddle 7. Multiple first stirring paddles 7 are fixed to the left and right sides of the first stirring shaft 6, arranged parallel to each other at 90° angles along the axis of the stirring shaft. The first stirring paddles 7 of the several first stirrers 4 are staggered among themselves. Each second stirrer 5 includes a second stirring shaft 14 and a second stirring paddle 13, with the second stirring paddle 13 circumferentially distributed on the second stirring shaft 14. The cross-section of the second stirring paddle 13 is a chopper-shaped paddle with one curved side and one straight side.

[0025] The horizontal etherification reactor has a first agitator 4 and a second agitator 5 inside the reactor body 1, which can achieve multi-stage axial and radial stirring, so that the material is evenly dispersed and fully stirred in the reactor, improving the stirring effect of the material in the reactor and thus reducing material residue. When the material enters the reactor body 1, it is first stirred by the first agitator 4. Due to gravity, some insufficiently mixed material will settle at the bottom of the reactor body 1. The second agitator 5 can further stir the insufficiently mixed material. The second agitator 13 is a chopper-type agitator, which can effectively reduce stirring resistance, reduce unit power consumption, and has a greater stirring shear force for high viscosity materials.

[0026] The first stirrer 4 is connected to a first motor 8, and the second stirrer 5 is connected to a second motor 9. The first motor 8 and the second motor 9 are connected to the main power unit 10 via wiring. The main power unit 10 is equipped with an operation button 11. The vessel body 1 is equipped with a feed inlet 2 and a discharge outlet 3, and a vessel body base 12 is fixedly installed at the bottom of the vessel body 1.

[0027] The first stirrer 4 and the second stirrer 5 are controlled by a motor from a main power unit 10. The main power unit 10 is equipped with buttons for operating the first and second stirrers, respectively. During operation, activating the operating buttons 11 on the main power unit 10 allows the first stirrer 4 and the second stirrer 5 to mix the materials under the power supply of the motor. The vessel base frame 12 further improves the stability of the etherification vessel during stirring.

[0028] Working principle: When using this utility model, the first and second agitators are started by pressing the operation button on the main power unit. Then, materials such as alkali cellulose and etherifying agent are added into the horizontal etherification kettle body through the feed port. The first and second agitators installed inside the horizontal etherification kettle body perform multi-stage axial and radial stirring of the materials, so that the materials are evenly dispersed and fully stirred in the kettle. The carboxymethyl cellulose prepared by the etherification reaction is discharged from the discharge port.

[0029] Of course, the above description is not limited to the examples above. Technical features not described in this utility model can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A multi-stage stirring structure for a horizontal etherification reactor, comprising a reactor body (1), characterized in that, The vessel body (1) is provided with several vertically distributed first stirrers (4) and several horizontally distributed second stirrers (5) at the bottom of the vessel body (1). The first stirrer (4) includes a first stirring shaft (6) and a first stirring paddle (7). Multiple first stirring paddles (7) are fixed to the left and right sides of the first stirring shaft (6) and are distributed parallel to each other at 90° along the stirring shaft axis. The first stirring paddles (7) of the several first stirrers (4) are staggered with each other. The second stirrer (5) includes a second stirring shaft (14) and a second stirring paddle (13). The second stirring paddle (13) is circumferentially distributed on the second stirring shaft (14). The cross-section of the second stirring paddle (13) is a chopper-shaped stirring paddle with one side curved and the other side straight.

2. The multi-stage stirring structure of the horizontal etherification reactor according to claim 1, characterized in that, The first stirrer (4) is connected to the first motor (8), and the second stirrer (5) is connected to the second motor (9). The first motor (8) and the second motor (9) are connected to the main power unit (10) by wiring.

3. The multi-stage stirring structure of the horizontal etherification reactor according to claim 2, characterized in that, The main power unit (10) is equipped with an operation button (11).

4. The multi-stage stirring structure of the horizontal etherification reactor according to claim 1, characterized in that, The vessel body (1) is provided with a feed inlet (2) and a discharge outlet (3), and a vessel body base frame (12) is fixedly installed at the bottom of the vessel body (1).

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