Mixing equipment for producing sodium carboxymethyl cellulose

Abstract

The utility model provides mixing equipment for producing sodium carboxymethyl cellulose. The mixing equipment comprises a motor, a rotating shaft, a feeding hole, a stirring shaft and a discharging hole which are sequentially arranged from top to bottom, the motor is arranged at the upper part of the reaction tank, connected with the rotating shaft and used for driving the rotating shaft to rotate; the stirring shafts comprise a first stirring shaft and a second stirring shaft, the stirring shafts are arranged in the reaction tank, and the feeding port and the discharging port are formed in the outer side wall of the reaction tank; the mixing equipment has good stirring performance, and it is guaranteed that all components can make contact and react rapidly and evenly in the mixing process.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium carboxymethyl cellulose production, in particular to mixing equipment for sodium carboxymethyl cellulose production. Background Art

[0002] The mixing device for sodium carboxymethyl cellulose production is a key equipment designed specifically for its production process characteristics. It is mainly used to achieve efficient mixing and full reaction between cellulose raw materials and etherifying agents, alkali solutions and other reactants. It plays a vital role in improving product quality, optimizing production efficiency, and ensuring safety and environmental protection. The mixing equipment in the existing technology is difficult to ensure that the components can contact and react quickly and evenly during the mixing process, which affects the degree of substitution and viscosity stability of sodium carboxymethyl cellulose. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a mixing device for the production of sodium carboxymethyl cellulose to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The mixing equipment for producing sodium carboxymethyl cellulose comprises a motor, a rotating shaft, a feed port, a stirring shaft and a discharge port which are arranged in sequence from top to bottom; the motor is arranged at the upper part of the reaction tank and connected to the rotating shaft to drive the rotating shaft to rotate; the stirring shaft comprises a first stirring shaft and a second stirring shaft, the stirring shaft is arranged in the reaction tank, and the feed port and the discharge port are arranged on the outer wall of the reaction tank.

[0006] Furthermore, a rotating shaft frame is arranged on the outer side of the rotating shaft for protecting the rotating shaft during operation.

[0007] Furthermore, the first stirring shaft and the second stirring shaft are arranged asymmetrically.

[0008] Furthermore, the length of the first stirring shaft is greater than the length of the second stirring shaft.

[0009] Furthermore, the length of the second stirring shaft is greater than the length of the first stirring shaft.

[0010] Furthermore, the first stirring shaft and the second stirring shaft are both provided with protrusions.

[0011] Furthermore, the protrusions on the first stirring shaft are symmetrically arranged along the center line of the first stirring shaft, and the protrusions on the second stirring shaft are symmetrically arranged along the center line of the second stirring shaft.

[0012] Furthermore, the feed port and the discharge port are both provided with protective covers, and the connection between the rotating shaft and the reaction tank is provided with a sealing member for sealing the reaction tank.

[0013] Furthermore, the rotating shafts are connected via couplings.

[0014] Furthermore, a reducer is provided between the motor and the rotating shaft for controlling the running speed of the rotating shaft.

[0015] The mixing equipment for producing sodium carboxymethyl cellulose in the utility model has the following technical effects:

[0016] The mixing equipment has good stirring performance, ensuring that the components can contact and react quickly and evenly during the mixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the mixing device of the utility model;

[0018] 1. Motor; 2. Rotating shaft; 31. First stirring shaft; 32. Second stirring shaft; 4. Feed inlet; 5. Discharge outlet; 6. Protrusion. DETAILED DESCRIPTION

[0019] In order to clearly illustrate the design concept of the present invention, the present invention is described below with reference to examples.

[0020] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution of the utility model is clearly and completely described below in conjunction with the drawings in the examples of the utility model. Obviously, the described examples are only part of the examples of the utility model, not all of them. Based on the examples of the utility model, all other implementation methods obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the utility model.

[0021] In the description of this embodiment, the orientations or positional relationships indicated by terms are based on the orientations or positional relationships shown in the accompanying drawings and are merely for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as a limitation on the present invention.

[0022] like Figure 1As shown, a mixing device for the production of sodium carboxymethyl cellulose includes a motor 1, a reducer, a rotating shaft 2, a feed port 4, a stirring shaft, and a discharge port 5 arranged in sequence from top to bottom; the motor 1 is connected to the reducer 2, and the motor 1 is arranged on the upper part of the reaction tank and connected to the rotating shaft to drive the rotating shaft 2 to rotate; a rotating shaft frame is arranged on the outer side of the rotating shaft 2 for protecting the rotating shaft 2 during operation, and the middle of the multi-section rotating shaft 2 can be rotatably connected through a coupling. The stirring shaft includes a first stirring shaft 31 and a second stirring shaft 32, and the stirring shaft is arranged in the reaction tank. The feed port 4 and the discharge port 5 are arranged on the outer wall of the reaction tank, the feed port 4 is located at the top of the reaction tank, and the discharge port 5 is located at the bottom of the reaction tank. Protective covers are arranged on the outside of the feed port 4 and the discharge port 5, and a seal is arranged at the connection between the rotating shaft 2 and the reaction tank to seal the reaction tank.

[0023] The first stirring shaft 31 and the second stirring shaft 32 are arranged asymmetrically. Specifically, the length of the first stirring shaft 31 may be greater than the length of the second stirring shaft 32, or the length of the second stirring shaft 32 may be greater than the length of the first stirring shaft 31. The materials in the reaction tank are lifted upward by the rapid rotation of the two asymmetric stirring shafts, forming two asymmetric spiral material flows from bottom to top along the tank wall. The materials on both sides of the rotating shaft are lifted to different degrees, and the two materials are lifted in a staggered manner. The two materials lifted to the upper part converge toward the center again to form a downward material flow, which supplements the holes at the bottom, thereby forming a convection cycle. Due to the repetition of the above-mentioned movement, the materials are evenly mixed in a shorter time, and the degree of mixing is higher.

[0024] The first stirring shaft 31 and the second stirring shaft 32 are both provided with protrusions. The protrusions on the first stirring shaft 31 are symmetrically arranged along the center line of the first stirring shaft 31, and the protrusions on the second stirring shaft 32 are symmetrically arranged along the center line of the second stirring shaft 32. The material is divided into multiple thin streams under the action of the protrusions, which is conducive to further improving the working efficiency of the mixing device.

[0025] The stirring shaft 8 and the stirring rod 9 are arranged in the reaction tank 7, and a connecting piece is arranged between the stirring shaft 8 and the stirring rod 9. The stirring rod 9 and the connecting piece are arranged symmetrically with respect to the stirring shaft 8. The rotating shaft 4 transmits power to the stirring shaft 8 and then drives the stirring rod 9 and the connecting piece connected thereto to rotate. The connecting piece extends into the bottom of the reaction tank to fully stir the materials at the bottom of the reaction tank.

[0026] During operation, the reaction raw materials enter the reaction tank from the feed port 4, and the shaft starts to rotate at a preset speed driven by the motor 1, thereby driving the first stirring shaft 31 and the second stirring shaft 32 to rotate, so as to fully mix the materials in the reaction tank and promote the smooth progress of the reaction; after the reaction is completed, the rotation of the shaft 2 is stopped, and the staff takes out the reaction product sodium carboxymethyl cellulose from the discharge port 5.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0028] Finally, it is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the principles and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. Mixing equipment for the production of sodium carboxymethyl cellulose, characterized in that: It includes a motor, a rotating shaft, a feed port, a stirring shaft, and a discharge port which are arranged in sequence from top to bottom; the motor is arranged at the upper part of the reaction tank and is connected to the rotating shaft to drive the rotating shaft to rotate; the stirring shaft includes a first stirring shaft and a second stirring shaft, the stirring shaft is arranged in the reaction tank, and the feed port and the discharge port are arranged on the outer wall of the reaction tank.

2. The mixing device for producing sodium carboxymethylcellulose according to claim 1, characterized in that: A rotating shaft frame is arranged outside the rotating shaft for protecting the rotating shaft during operation.

3. The mixing device for producing sodium carboxymethylcellulose according to claim 1, characterized in that: The first stirring shaft and the second stirring shaft are arranged asymmetrically.

4. The mixing device for producing sodium carboxymethylcellulose according to claim 1, characterized in that: The length of the first stirring shaft is greater than the length of the second stirring shaft.

5. The mixing device for producing sodium carboxymethylcellulose according to claim 1, characterized in that: The length of the second stirring shaft is greater than the length of the first stirring shaft.

6. The mixing device for producing sodium carboxymethylcellulose according to claim 1, characterized in that: The first stirring shaft and the second stirring shaft are both provided with protrusions.

7. The mixing device for producing sodium carboxymethylcellulose according to claim 6, characterized in that: The protrusions on the first stirring shaft are symmetrically arranged along the center line of the first stirring shaft, and the protrusions on the second stirring shaft are symmetrically arranged along the center line of the second stirring shaft.

8. The mixing equipment for producing sodium carboxymethylcellulose according to claim 1, characterized in that: The feed port and the discharge port are both provided with protective covers, and the connection between the rotating shaft and the reaction tank is provided with a sealing member for sealing the reaction tank.

9. The mixing device for producing sodium carboxymethylcellulose according to claim 1, characterized in that: The rotating shafts are connected via couplings.

10. The mixing equipment for producing sodium carboxymethylcellulose according to claim 1, characterized in that: A speed reducer is arranged between the motor and the rotating shaft to control the running speed of the rotating shaft.

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