Rotary stirrer

Abstract

The utility model discloses a rotary stirrer which comprises an outer barrel, an inner barrel is arranged in the outer barrel, a middle shaft is rotationally arranged in the inner barrel, a spiral stirring blade is fixedly connected to the outer side face of the middle shaft, and the bottom of the middle shaft extends out of the inner barrel and then is fixedly connected with a bent stirring blade. And two rotating second three-blade push type stirring blades are symmetrically arranged in the outer barrel relative to the inner barrel. The spiral stirring blades are driven by the middle shaft to rotate, so that raw materials rotate and are pushed to flow downwards, solid substances in the raw materials are easier to move downwards under the action of gravity so as to impact the bent stirring blades, and the solid substances are discharged from the inner barrel to move towards the outer barrel under the rotation action of the bent stirring blades; meanwhile, the rotating shaft rotates to drive the raw materials to form rotary flow, the raw materials are pushed upwards and then sucked into the inner barrel through the spiral stirring blades, so that continuous circular flow is formed, and the raw material mixing efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agitator technical field, concretely relates to a whirl agitator. BACKGROUND

[0002] The agitator is the device that makes liquid, gas medium forced convection and even mixing, rotates through motor drive stirring shaft and stirring paddle, and the interaction between stirring paddle and liquid makes liquid form circular flow and turbulent flow, thereby achieving the purpose of mixing and stirring, and different shapes and sizes of stirring paddle can produce different flow field and stirring effect.

[0003] The existing agitator for stirring the sludge mud often adopts a single stirring paddle, which can only form a circular flow in the local range around the paddle blade in the stirring bin, thereby limiting the overall mixing efficiency of the sludge mud. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a whirl agitator to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a whirl agitator, comprising: an outer barrel, an inner barrel is arranged in the outer barrel, a middle shaft is rotatably arranged in the inner barrel, spiral stirring blades are fixedly connected to the outer side surface of the middle shaft, curved blade stirring blades are fixedly connected to the bottom of the middle shaft and extend out of the inner barrel, and two second three-blade propelling stirring blades are symmetrically arranged in the outer barrel and rotate about the inner barrel.

[0006] Further, two symmetrically arranged preliminary grooves are formed in the middle and lower parts of the inner barrel, one mounting plate is fixedly connected to each of the two inner side walls of the preliminary groove, and a first three-blade propelling stirring blade is rotatably arranged in the mounting plate.

[0007] Further, the upper and lower ends of the inner barrel are connected to the inner wall of the outer barrel through connecting rods.

[0008] Further, the front and rear outer walls of the inner barrel are tightly attached to the inner wall of the outer barrel, and the first three-blade propelling stirring blades are arranged on the left and right sides of the inner barrel.

[0009] Further, the extension range of the middle shaft in the vertical direction is greater than or equal to the height of the inner barrel.

[0010] Further, a containing groove is formed in the middle and upper parts of the inner wall of the outer barrel, a rotating shaft is rotatably arranged in the outer barrel, the second three-blade propelling stirring blades are fixedly sleeved outside the rotating shaft, and the movement path of the second three-blade propelling stirring blades passes through the containing groove.

[0011] Further, a feeding hopper is arranged at the top of the outer barrel.

[0012] Further, the second three-blade propeller stirring blade is located above the first three-blade propeller stirring blade.

[0013] In the above technical solution, the convective stirring device has the beneficial effects that:

[0014] 1、The middle shaft drives the spiral stirring blade to rotate, so that the raw materials rotate and flow downward, and the solid substances in the raw materials are more easily moved downward under the action of gravity, thereby impacting the curved blade stirring blade, which is moved from the inner barrel to the outer barrel under the rotation of the curved blade stirring blade, improving the mixing efficiency of the raw materials.

[0015] 2、The inner barrel is tightly attached to the outer barrel on the front and rear sides, so that the raw materials form a continuous circulating flow on the left and right sides of the inner barrel, defining a movement channel for the circulating flow of the raw materials, thereby accelerating the flow speed of the raw materials.

[0016] 3、The first three-blade propeller stirring blade is arranged in the middle and lower part of the inner barrel, so that the force of the spiral stirring blade pushing the raw materials acts on the first three-blade propeller stirring blade, causing the first three-blade propeller stirring blade to rotate, and the impact force between them promotes the mixing efficiency of the raw materials, and when the raw materials move upward between the outer barrel and the inner barrel, the rotating force of the first three-blade propeller stirring blade can act as a booster to accelerate the circulating flow speed of the raw materials between the outer barrel and the inner barrel, thereby improving the mixing efficiency of the raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The structure diagram provided by the embodiment of the present application is shown;

[0018] Fig. 2 The internal structure diagram provided by the embodiment of the present application is shown.

[0019] MARKING OF THE DRAWINGS:

[0020] 1、The outer barrel; 11, the feeding hopper; 12, the containing groove; 2, the inner barrel; 21, the preparatory groove; 22, the connecting rod; 3, the middle shaft; 4, the spiral stirring blade; 5, the curved blade stirring blade; 6, the first three-blade propeller stirring blade; 61, the mounting plate; 7, the first motor; 8, the second three-blade propeller stirring blade; 81, the rotating shaft; 82, the second motor. DETAILED DESCRIPTION

[0021] To make the purposes, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0022] Please refer to Figs. 1-2 A rotary stirrer, comprising: an outer barrel 1, an inner barrel 2 is arranged in the outer barrel 1, a middle shaft 3 is rotatably arranged in the inner barrel 2, helical stirring blades 4 are fixedly connected to the outer side of the middle shaft 3, curved stirring blades 5 are fixedly connected to the bottom of the middle shaft 3 and extend out of the inner barrel 2, and two rotating second three-blade propelling stirring blades 8 are symmetrically arranged in the outer barrel 1 relative to the inner barrel 2.

[0023] Specifically, the helical stirring blades 4 are driven to rotate by the middle shaft 3, so that the raw materials are caused to rotate and flow downward, and the solid substances in the raw materials are more easily moved downward under the action of gravity, thereby impacting the curved stirring blades 5, which are moved from the inner barrel 2 to the outer barrel 1 under the rotating action of the curved stirring blades 5, the mixing efficiency of the raw materials is improved, meanwhile, the rotating shaft 81 drives the raw materials to form a rotating flow, the raw materials are pushed upward and then sucked into the inner barrel 2 by the helical stirring blades 4, so that a continuous circulating flow is formed, and the mixing efficiency of the raw materials is further improved.

[0024] Further, two symmetrically arranged preliminary grooves 21 are formed in the middle and lower parts of the inner barrel 2, one mounting plate 61 is fixedly connected to each of the two inner side walls of the preliminary groove 21, a first three-blade propelling stirring blade 6 is rotatably arranged in the mounting plate 61, and a round rod is welded between the two mounting plates 61, the first three-blade propelling stirring blade 6 is connected to the outer side of the round rod through a bearing sleeve, and sealing treatment is done.

[0025] Specifically, the first three-blade propelling stirring blades 6 are arranged in the middle and lower parts of the inner barrel 2, so that the force of the helical stirring blades 4 pushing the raw materials acts on the first three-blade propelling stirring blades 6, the first three-blade propelling stirring blades 6 are caused to rotate, the impact force between the first three-blade propelling stirring blades 6 promotes the mixing efficiency of the raw materials, and when the raw materials move upward between the outer barrel 1 and the inner barrel 2, the rotating force of the first three-blade propelling stirring blades 6 can serve as assistance to accelerate the circulating flow speed of the raw materials between the outer barrel 1 and the inner barrel 2, thereby improving the mixing efficiency of the raw materials.

[0026] Further, the upper and lower ends of the inner barrel 2 are connected to the inner wall of the outer barrel 1 through the connecting rod 22, the front and rear outer walls of the inner barrel 2 are tightly attached to the inner wall of the outer barrel 1, the first three-blade propelling stirring blade 6 is arranged on the left and right sides of the inner barrel 2, the outer barrel 1 and the inner barrel 2 are two independent components, the upper and lower ends of the inner barrel 2 are welded to the inner wall of the outer barrel 1 through the connecting rod 22, the fixation of the inner barrel 2 is completed, and the front and rear sides of the inner barrel 2 are tightly attached to the inner wall of the outer barrel 1, so that the circulating flow track of the raw materials is limited within the range of the left and right sides of the inner barrel 2.

[0027] Specifically, referring to Fig. 2 The front and rear sides of the inner barrel 2 are tightly attached to the outer barrel 1, so that the raw materials form a continuous circulating flow on the left and right sides of the inner barrel 2, a movement channel is defined for the circulating flow of the raw materials, and the flow speed of the raw materials is further increased.

[0028] Further, the extension range of the central shaft 3 in the vertical direction is greater than or equal to the height of the inner barrel 2, so that when the spiral stirring blade 4 rotates, the range of the raw material movement affected by the spiral stirring blade 4 exceeds the inner barrel 2, and then the raw materials are sucked from above the inner barrel 2 and pushed out from below the inner barrel 2.

[0029] Further, the upper and lower ends of the inner barrel 2 are connected to the inner wall of the outer barrel 1 through the connecting rod 22, the front and rear outer walls of the inner barrel 2 are tightly attached to the inner wall of the outer barrel 1, the first three-blade propelling stirring blade 6 is arranged on the left and right sides of the inner barrel 2, the outer barrel 1 and the inner barrel 2 are two independent components, the upper and lower ends of the inner barrel 2 are welded to the inner wall of the outer barrel 1 through the connecting rod 22, the fixation of the inner barrel 2 is completed, and the front and rear sides of the inner barrel 2 are tightly attached to the inner wall of the outer barrel 1, so that the circulating flow track of the raw materials is limited within the range of the left and right sides of the inner barrel 2.

[0030] Further, the top of the outer barrel 1 is provided with a feeding hopper 11, the first motor 7 is installed on the top of the outer barrel 1, the output shaft of the first motor 7 is fixedly connected with the central shaft 3, and the feeding hopper 11 is a feeding hopper with an inclined opening facing away from the first motor 7.

[0031] Further, the second three-blade propelling stirring blade 8 is located above the first three-blade propelling stirring blade 6, and the rotational movements of the first three-blade propelling stirring blade 6 and the second three-blade propelling stirring blade 8 do not affect each other, and both of them are used to push the raw materials upwards.

[0032] In the utility model, referring to Figs. 1-2The raw material of solid-liquid mixture, which is a mixture of slag and water, is poured into the inner barrel 2 from the feeding hopper 11, and the rotation of the helical stirring blade 4 driven by the central shaft 3 pushes the slag and water to move downward while rotating and mixing. When the slag and water pass through the curved blade 5, the shear force and thrust generated by the rotation of the curved blade 5 further break the slag and mix it with water, and the mixture is pushed to the surrounding area and enters the outer barrel 1. The first three-blade propelling stirring blade 6 pushes the mixture upward, and then the second three-blade propelling stirring blade 8 further pushes the mixture to the top of the inner barrel 2. The rotating suction force generated by the helical stirring blade 4 then sucks the mixture of slag and water into the inner barrel 2, achieving continuous circulation and uniform mixing of the slag and water to form mud.

Claims

1. A whirl mixer comprising: The utility model provides a double -layered barrel, it is characterized by: the inside of outer barrel (1) is provided with inner barrel (2), the inside of inner barrel (2) is provided with middle shaft (3) rotationally, the outside of middle shaft (3) is fixedly connected with spiral stirring blade (4), the bottom of middle shaft (3) is fixedly connected with curved blade stirring blade (5) after projecting inner barrel (2), two rotating second three -bladed propelling type stirring blades (8) are arranged symmetrically about inner barrel (2) in outer barrel (1).

2. A whirl mixer according to claim 1 wherein, The middle lower portion of the inner barrel (2) is provided with two symmetrically arranged preliminary grooves (21), each of the two inner side walls of the preliminary groove (21) is fixedly connected with an installation plate (61), and the installation plate (61) is provided with a first three-bladed propelling type stirring blade (6) rotatably.

3. A whirl mixer according to claim 1 wherein, The upper and lower ends of the inner barrel (2) are connected to the inner wall of the outer barrel (1) through a connecting rod (22).

4. A whirl mixer according to claim 2, wherein The front and rear outer walls of the inner barrel (2) are tightly attached to the inner wall of the outer barrel (1), and the first three-bladed propelling type stirring blades (6) are arranged on the left and right sides of the inner barrel (2).

5. A whirl mixer according to claim 1 wherein, The extension range of the middle shaft (3) in the vertical direction is greater than or equal to the height of the inner barrel (2).

6. A whirl mixer according to claim 1 wherein, The middle upper portion of the inner wall of the outer barrel (1) is provided with a receiving groove (12), the outer barrel (1) is provided with a rotating shaft (81) rotatably, the second three-bladed propelling type stirring blades (8) are fixedly sleeved on the outer rotating shaft (81), and the movement path of the second three-bladed propelling type stirring blades (8) passes through the receiving groove (12).

7. A whirl mixer according to claim 1 wherein, The top of the outer barrel (1) is provided with a feeding hopper (11).

8. A whirl mixer according to claim 2 wherein, The second three-bladed propelling type stirring blades (8) are located above the first three-bladed propelling type stirring blades (6).

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