Stirrer

Abstract

The utility model discloses a stirrer which comprises a motor, a cylinder body, a stirring shaft and stirrers positioned in the cylinder body, and the stirrers comprise a first stirrer, a second stirrer and a third stirrer; the first stirrer comprises a first main stirrer and a plurality of first stirring blades which are fixedly arranged on the first main stirrer side by side, and the first stirring blades extend towards the second stirrer; a plurality of second stirrers are arranged in parallel from top to bottom, and second stirring blades of every two adjacent second stirrers are arranged in a staggered manner; the third stirrer is positioned at the bottommost part of the barrel; and the third stirrer is an anchor stirrer, so that the mixture can be mixed and dispersed more uniformly, and heat transfer of the mixture is facilitated.

Description

Technical Field

[0001] The utility model specifically relates to a stirrer. Background Art

[0002] A stirred tank is broadly understood as a container for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process are realized in the same way as the performance principle of the reactor. The stirred tank is also an important production equipment in the polyurethane production process. In the polyurethane production process, it is expected that the materials can be fully stirred and mixed to achieve the most ideal product. However, in the actual production process, it is found that the traditional stirred tank has a stirring dead corner, which makes it impossible to fully stir the materials in the stirring dead corner, thus affecting the final product quality; in addition, for the agitator used in textile adhesives, the heat transfer and internal and external mixing must be highly uniform during the stirring process, otherwise the heat will not be able to bring about the risk of explosion. Summary of the invention

[0003] The utility model aims to provide a stirrer, which is intended to provide sufficient stirring and make the internal and external mixing highly uniform.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] A stirrer comprises a motor, a cylinder, a stirring shaft and a stirrer located in the cylinder, the stirrer comprising a first stirrer, a second stirrer and a third stirrer; the first stirrer comprises a first main stirrer and a plurality of first stirring blades fixed side by side on the first main stirrer, the first stirring blades extending toward the second stirrer; the second stirrer is provided with a plurality of second stirring blades arranged in parallel from top to bottom, and the second stirring blades of two adjacent second stirrers are arranged in an alternating manner; the third stirrer is located at the bottom of the cylinder; the third stirrer is an anchor stirrer.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the first stirring blade is nail-shaped and perpendicular to the first main agitator.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the first agitator is in the shape of a spike rake.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a fourth agitator, and the fourth stirring blade of the fourth agitator is staggered with the second stirring blade of the adjacent second agitator; the fourth agitator is received in the stirring space of the third agitator.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the bottom of the cylinder is a curved surface; the outer edge of the third agitator is close to the bottom of the cylinder.

[0010] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects: a plurality of parallel second agitators are arranged in the cylinder from top to bottom, and the second stirring blades on adjacent second agitators are arranged in a staggered manner, so that the mixture in the middle of the cylinder is fully stirred; the third agitator located at the bottom of the cylinder is close to the bottom of the cylinder, and stirs the mixture at the bottom upward, and cooperates with the fourth agitator to stir the mixture in the middle of the third agitator, avoiding the problem of insufficient stirring in the middle due to the structural limitation of the third agitator; in addition, the first agitator is a rake-like structure, so the spacing between the first stirring blades is relatively dense, so that the mixture in the middle and bottom of the cylinder can be stirred and rolled to the top of the cylinder, and the mixture is stirred by the dense first agitator, so that the mixing and dispersion are more uniform, and it is more conducive to the heat transfer of the mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution in the embodiment will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of this application, not all embodiments. Based on the given embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0013] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0014] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0015] See Figure 1As shown, the present application discloses a stirrer, including a motor 1, a reducer 2, a transmission frame 3, a shaft seal 4, a quick-opening manhole 5, a support 6, a bottom bearing 11, a cylinder 14, a stirring shaft 15 and a stirrer located in the cylinder 14, the cylinder 14 includes a head 12 welded to both ends thereof by full-circle welding and a semicircular pipe clamp 13 surrounding the outer circumference of the cylinder; the motor 1 drives the stirring shaft 15 to rotate after being decelerated and torque-increased by the reducer 2, and the stirrer is fixedly mounted on the stirring shaft 15, thereby realizing the stirrer to rotate in the cylinder 14 to achieve stirring. The stirrer includes a first stirrer 7, a second stirrer 8 and a third stirrer 10; specifically, in this embodiment, the first stirrer 7 includes a first main stirrer 71 and a plurality of first stirring blades 72 fixedly arranged side by side on the first main stirrer 71, and the first stirring blades 72 extend toward the second stirrer 8; specifically, the first stirring blades 72 are preferably nail-shaped and perpendicular to the first main stirrer 71; thus, the first stirrer 7 is in the shape of a nail rake. By setting the first agitator as a rake-like structure, the spacing between the first stirring blades is relatively dense, and the mixture in the middle and bottom of the cylinder can be stirred and rolled to the top of the cylinder. The dense first agitator stirs the mixture, making it more evenly mixed and dispersed, and more conducive to the heat transfer of the mixture. There are multiple second agitators 8 arranged in parallel from top to bottom, and the second stirring blades 81 of two adjacent second agitators 8 are staggered. By setting multiple parallel second agitators in the cylinder from top to bottom, and the second stirring blades on adjacent second agitators are staggered, the mixture in the middle of the cylinder is fully stirred; the third agitator 10 is located at the bottom of the cylinder 14; the third agitator 10 is an anchor agitator. Furthermore, it is preferred that the bottom of the cylinder 14 is an arc surface; the outer edge of the third agitator 10 is close to the bottom of the cylinder 14; in addition, the present embodiment preferably also includes a fourth agitator 9, and the fourth stirring blade 91 of the fourth agitator 9 is staggered with the second stirring blade 81 of the adjacent second agitator 8; the fourth agitator 9 is received in the stirring space of the third agitator 10. The third agitator 10 located at the bottom of the cylinder 14 is close to the bottom of the cylinder 14, stirring the mixture at the bottom upwards, and cooperating with the fourth agitator to stir the mixture in the middle of the third agitator, avoiding the problem of insufficient stirring in the middle due to the structural limitation of the third agitator, thereby allowing all the mixture in the cylinder to participate in the mixing and stirring without dead ends, and the mixing and stirring are more uniform in temperature; sufficient mixing and stirring also allows the mixture of each part to fully transfer heat, so that the temperature of each position tends to be consistent, thereby avoiding the problem of heat not being able to bring out the explosion.

[0016] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirrer, comprising a motor (1), a barrel (14), a stirring shaft (15), and the stirrer located in the barrel (14), characterized in that: The agitator comprises a first agitator (7), a second agitator (8) and a third agitator (10); the first agitator (7) comprises a first main agitator (71) and a plurality of first agitating blades (72) fixedly arranged side by side on the first main agitator (71), the first agitating blades (72) extending toward the second agitator (8); the second agitator (8) is provided with a plurality of second agitating blades (81) arranged in parallel from top to bottom, and the second agitating blades (81) of two adjacent second agitators (8) are arranged in a staggered manner; the third agitator (10) is located at the bottom of the cylinder (14); the third agitator (10) is an anchor agitator.

2. A stirrer according to claim 1, characterized in that: The first stirring blade (72) is spike-shaped and is perpendicular to the first main stirrer (71).

3. A stirrer according to claim 2, characterized in that: The first stirrer (7) is in the shape of a spike rake.

4. A stirrer according to claim 1, characterized in that: It also includes a fourth agitator (9), wherein the fourth agitator (9) has a fourth agitator blade (91) which is arranged alternately with the second agitator blade (81) of the adjacent second agitator (8); the fourth agitator (9) is received in the agitation space of the third agitator (10).

5. A stirrer according to claim 1, characterized in that: The bottom of the cylinder (14) is a curved surface; the outer edge of the third stirrer (10) is close to the bottom of the cylinder (14).

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