Stirring device for viscous materials
By adopting a combination design of axial flow blades and propeller blades in the agitator device, combined with forward and reverse motors and high-pressure cleaning, the problem of poor mixing effect of viscous materials is solved, and efficient mixing and cleaning are achieved in the entire area.
Patent Information
- Application Number
- CN202422237494.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-11
AI Technical Summary
When the existing stirring device treats viscous materials, the mixing effect is poor and it is difficult to achieve efficient production.
The combination design of axial flow blades and propeller blades is adopted, combined with the forward and reverse function drive motor to realize the circulating mixing of materials in the entire area in the mixing tank and is cleaned through an annular high-pressure cleaning pipe.
It realizes efficient mixing of viscous materials throughout the entire area, improves production efficiency, and effectively cleans the inner wall of the mixing tank to ensure the cleaning of the device.
Smart Images
Figure CN223069367U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of material stirring and relates to a stirring device for viscous materials. Background Art
[0002] The chemical production process often involves the problem of stirring viscous materials. The stirring paddle is an important component in the viscous material stirrer, and its structural type and arrangement have a very important impact on the material mixing uniformity and reaction efficiency of the stirrer.
[0003] Most stirring tanks are cylindrical cavities. During the stirring process of viscous materials, due to the high viscosity and poor fluidity of the materials themselves, when the stirring paddle selects a paddle with a larger radius, it is easy to form a local area material circulation mixing near the paddle. When the stirring paddle selects a paddle with a smaller radius, it is easy to form a vortex mixing in the cylindrical or conical region surrounding the rotating shaft, and the materials far from the paddle or near the inner wall of the stirring tank cannot be fully mixed, making it difficult to achieve efficient production. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a stirring device for viscous materials to solve the technical problem that the existing stirring device has poor material mixing effect and is difficult to achieve efficient production.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] The utility model discloses a stirring device for viscous materials, which includes a stirring tank, a driving device, a rotating shaft, a primary paddle, a secondary paddle, a tertiary paddle and a feed pipe; the rotating shaft is arranged in the stirring tank; the primary paddle, the secondary paddle and the tertiary paddle are sequentially arranged on the rotating shaft in the stirring tank from bottom to top; one end of the feed pipe extends into the stirring tank from the top of the stirring tank; the driving device is connected with the rotating shaft;
[0007] The type of the primary paddle is an axial flow paddle; the types of the secondary paddle and the tertiary paddle are both propeller paddles.
[0008] Further, the inlet edge of the secondary paddle forms an angle of 10° - 30° with the outlet edge of the primary paddle.
[0009] Further, the inlet edge of the tertiary paddle forms an angle of 10° - 30° with the outlet edge of the secondary paddle.
[0010] Further, it further includes an annular high-pressure cleaning pipe; one end of the annular high-pressure cleaning pipe is connected with a high-pressure water pump and a water storage tank, and the other end forms an annular pipe and extends into the stirring tank; the rotating shaft extends into the annular pipe.
[0011] Furthermore, the annular pipe is located at a height of 1 / 5 to 1 / 3 of the height of the stirring tank from the top of the stirring tank; a plurality of inner spray holes forming an angle of 30° to 60° with the axis of the rotating shaft and outer spray holes parallel to the axis of the rotating shaft are provided on the annular pipe.
[0012] Furthermore, the other end of the feed pipe is connected with a viscous material feeding pump and a feeding bin.
[0013] Furthermore, the number of the axial flow impellers is three.
[0014] Furthermore, the bottom of the stirring tank is communicated with a discharge pipe; a clamp and / or a valve are sequentially arranged on the discharge pipe; the outer side of the bottom of the stirring tank is connected with a stirring tank bottom support.
[0015] Furthermore, the driving device is a driving motor with a forward and reverse rotation function.
[0016] Furthermore, a bearing and a sealing device are arranged at the connection between the rotating shaft and the top of the stirring tank.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The utility model discloses a stirring device for viscous materials. The driving device drives each stage of impellers to rotate uniformly at a certain speed. The first-stage impeller is an axial flow impeller and is arranged at a position close to the bottom of the stirring tank. When the axial flow impeller rotates, the bottom materials are lifted from the bottom of the stirring tank to above the impeller in a large flow rate. Part of the materials flowing out from the first-stage impeller fall back to the bottom of the stirring tank through the interblade gaps and the tip gaps of the axial flow blades, so that the materials form a bottom-up circulation in the bottom area of the tank. Part of the materials enter the spiral lifting area of the second-stage impeller, so that the materials are lifted for the second time. The spiral impeller can realize the radial and axial stirring of the materials, generate a large shear force, and enhance the material mixing effect. Part of the materials flowing out from the second-stage impeller fall back to the middle and lower parts of the stirring tank under the dual action of centrifugal force and gravity. Part of the materials enter the spiral lifting area of the third-stage impeller. The spiral impeller realizes the radial and axial stirring of the materials again, completes the lifting and mixing of the materials in the upper area of the stirring tank. The viscous materials have high viscosity and poor fluidity. The linkage of the three-stage impellers can realize the full-area circulation and efficient mixing of the materials in the stirring tank from bottom to top, and solves the technical problem that the existing stirring device has poor material mixing effect and is difficult to achieve high-efficiency production.
[0019] Furthermore, a forward and reverse rotation motor is selected. When the motor is started to rotate in reverse, the linkage of the three-stage impellers can realize the full-area circulation and efficient mixing of the viscous materials in the stirring tank from top to bottom. After the stirring reaches the expected mixing effect, continuously rotating the stirring impellers in the reverse direction can also promote the discharge and complete discharge of the viscous materials.
[0020] Furthermore, by using the high-pressure water column ejected from the spray holes of the annular high-pressure cleaning pipe at a certain angle and flow rate, the cleaning of each stage of the paddle blades and the inner wall of the stirring tank can be achieved.
[0021] Furthermore, the sealing device between the upper end of the rotating shaft and the top cover of the stirring tank can prevent the contamination of materials and flushing water, ensuring the cleanliness of the transmission device. Description of the Drawings
[0022] Figure 1 is a schematic diagram of the overall structure of a stirring device for viscous materials of the present utility model;
[0023] Figure 2 is Figure 1 the schematic diagram of the A-A cross-section in
[0024] Wherein: 1 - stirring tank; 2 - driving motor; 3 - rotating shaft; 4 - first-stage paddle blade; 5 - second-stage paddle blade; 6 - third-stage paddle blade; 7 - feed pipe; 8 - annular high-pressure cleaning pipe; 9 - bottom feet of the stirring tank; 10 - discharge pipe. Specific Embodiments
[0025] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.
[0027] The utility model discloses a stirring device for viscous materials. By setting a stirring tank 1, a driving device, a rotating shaft 3, a first-stage paddle 4, a second-stage paddle 5, a third-stage paddle 6 and a feed pipe 7, and designing and arranging the axial-flow stirring paddle and the spiral stirring paddle according to a certain airfoil, size and angle, the viscous materials are efficiently mixed in a full area cycle in the stirring tank, the production efficiency is improved, and the production cost is reduced.
[0028] A stirring device for viscous materials disclosed by the invention includes a stirring tank 1, a driving motor 2 arranged at the upper end of the stirring tank, a rotating shaft 3 arranged in the stirring tank 1 for driving the stirring paddle, a first-stage paddle 4, a second-stage paddle 5 and a third-stage paddle 6 arranged in the stirring tank 1, a feed pipe 7 arranged at the upper end inside the stirring tank 1, and an annular high-pressure cleaning pipe 8 arranged at the upper end inside the stirring tank 1; wherein, the first-stage paddle 4, the second-stage paddle 5 and the third-stage paddle 6 are sequentially arranged on the rotating shaft 3 in the stirring tank 1 from bottom to top, and one end of the feed pipe 7 extends into the stirring tank 1 from the top of the stirring tank 1; the driving device is connected with the rotating shaft 3; the type of the first-stage paddle 4 is an axial-flow paddle; the types of the second-stage paddle 5 and the third-stage paddle 6 are both propeller blades.
[0029] Wherein, a bearing and a sealing device are arranged at the assembly position of the rotating shaft 3 and the upper end of the tank body of the stirring tank 1; the type of the first-stage paddle 4 is an axial-flow paddle, and the number of blades is 3; the type of the second-stage paddle 5 is a propeller blade, and the included angle between the inlet edge of the paddle and the outlet edge of the first-stage paddle 4 is 10° - 30°; the type of the third-stage paddle 6 is a propeller blade, and the included angle between the inlet edge of the paddle and the outlet edge of the second-stage paddle 5 is 10° - 30°.
[0030] Wherein, the nozzle of the feed pipe 7 is located at 1 / 3 of the height of the tank from the top of the stirring tank 1, the spray holes of the annular high-pressure cleaning pipe 8 are located at 1 / 5 - 1 / 3 of the height of the tank from the top of the stirring tank 1, and there are 22 inner spray holes arranged at an included angle of 30° - 60° with the axis of the rotating shaft 3 and 22 outer spray holes arranged in a parallel state with the axis of the rotating shaft 3.
[0031] Preferably, a viscous material feeding pump and a feeding bin are connected to the outside of the feed pipe 7.
[0032] Preferably, a high-pressure water pump and a water storage tank are connected to the outside of the annular high-pressure cleaning pipe 8.
[0033] Preferably, a clamp and / or a valve are arranged on the discharge pipe 10.
[0034] Preferably, a stirrer bottom foot 9 is connected to the outside of the bottom of the stirring tank 1.
[0035] The following further describes the present utility model in detail with reference to the drawings:
[0036] Such as Figure 1 AndFigure 2 As shown in the figure, the utility model provides an efficient stirring device for viscous materials, including: a stirring tank 1, a driving motor 2, a rotating shaft 3, a first-stage paddle 4, a second-stage paddle 5, a third-stage paddle 6, a feed pipe 7, and an annular high-pressure cleaning pipe 8; the stirring tank 1 has a cylindrical stirring chamber, and a discharge pipe 10 is arranged at the bottom; the driving motor 2 is arranged at the upper end of the stirring tank 1 and is a forward and reverse motor; the top end of the rotating shaft 3 is connected to the driving motor 2; the first-stage paddle 4 is assembled at the lowermost end of the rotating shaft 3, the blade type of the first-stage paddle 4 is designed as an axial-flow blade, the number of blades is 3, and the airfoil is designed as a convex-down blade that can push the material to flow axially upward; the second-stage paddle 5 is arranged at the position of 1 / 4 from the bottom to the top of the rotating shaft 3, the blade type of the second-stage paddle 5 is designed as a spiral-flow blade, the inlet edge of the blade forms a 20° angle with the outlet edge of the blade of the first-stage paddle 4, and the whole spiral wrap angle is 450°; the third-stage paddle 6 is arranged at the position of 1 / 2 from the bottom to the top of the rotating shaft 3, the blade type of the third-stage paddle 6 is designed as a spiral-flow blade, the inlet edge of the blade forms a 30° angle with the outlet edge of the blade of the second-stage paddle 5, and the whole spiral wrap angle is 450°; the nozzle of the feed pipe 7 is arranged at the position of 1 / 3 of the tank height from the top of the stirring tank; the spray holes of the annular high-pressure cleaning pipe 8 are provided with 22 inner spray holes at a position 1 / 4 of the tank height from the top of the stirring tank and forming a 45° angle with the axis of the rotating shaft 3, and 22 outer spray holes in a parallel state with the axis of the rotating shaft 3. There are no inner spray holes at the position where the annular pipe of the annular high-pressure cleaning pipe 8 is blocked by the feed pipe 7 and at the corresponding pipe position of the vertical water inlet pipe of the annular high-pressure cleaning pipe 8.
[0037] The working principle of the stirring device for viscous materials of the utility model is as follows: After the initial material is added through the feed pipe 7 at the upper end of the stirring tank 1 and accumulates in the body of the stirring tank 1, the driving motor 2 is started, and the driving motor 2 drives the rotating shaft 3 and each stage of paddle to rotate at a certain speed uniformly. The first-stage paddle 4 is an axial-flow paddle and is arranged near the bottom of the stirring tank 1. When the axial-flow paddle rotates, the bottom material is lifted from the bottom of the stirring tank 1 to above the paddle in a large flow rate. Part of the material flowing out of the first-stage paddle 4 falls back to the bottom of the stirring tank 1 through the inter-blade gap and the tip gap of the axial-flow blade, and part enters the spiral lifting area of the second-stage paddle 5, so that the material is lifted for the second time. The spiral paddle can realize the stirring of the material in the radial and axial directions, generate a large shear force, and enhance the mixing effect of the material. Part of the material flowing out of the second-stage paddle 5 falls back to the middle and lower parts of the stirring tank 1 under the dual action of centrifugal force and gravity, and part enters the spiral lifting area of the third-stage paddle 6. The spiral paddle realizes the stirring of the material in the radial and axial directions again, and completes the lifting and mixing of the material in the upper area of the stirring tank 1. The viscous material has high viscosity and poor fluidity. The linkage of the first-stage paddle 4, the second-stage paddle 5 and the third-stage paddle 6 can realize the full-area cyclic and efficient mixing of the material in the stirring tank from bottom to top.
[0038] The above content is only to illustrate the technical idea of the present utility model, and the protection scope of the present utility model cannot be limited thereby. Any modification made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model falls within the protection scope of the claims of the present utility model.
Claims
1. A stirring device for viscous materials, characterized in that It includes a mixing tank (1), a driving device, a rotating shaft (3), a first-stage paddle (4), a second-stage paddle (5), a third-stage paddle (6) and a feed pipe (7); the rotating shaft (3) is arranged in the mixing tank (1); the first-stage paddle (4), the second-stage paddle (5) and the third-stage paddle (6) are sequentially arranged on the rotating shaft (3) in the mixing tank (1) from bottom to top; one end of the feed pipe (7) extends into the mixing tank (1) from the top of the mixing tank (1); the driving device is connected to the rotating shaft (3). The type of the first-stage paddle (4) is an axial-flow paddle; the types of the second-stage paddle (5) and the third-stage paddle (6) are both propeller paddles.
2. The stirring device for viscous materials according to claim 1, characterized in that, The inlet edge of the second-stage paddle (5) forms an angle of 10° to 30° with the outlet edge of the first-stage paddle (4).
3. The stirring device for viscous materials according to claim 1, wherein, The inlet edge of the third-stage paddle (6) forms an angle of 10° to 30° with the outlet edge of the second-stage paddle (5).
4. The stirring device for viscous materials according to claim 1, characterized in that, It further includes an annular high-pressure cleaning pipe (8); one end of the annular high-pressure cleaning pipe (8) is connected to a high-pressure water pump and a water storage tank, and the other end forms an annular pipe and extends into the mixing tank (1); the rotating shaft (3) extends into the annular pipe.
5. The stirring device for viscous materials according to claim 4, wherein, The annular pipe is located at a height of 1 / 5 to 1 / 3 of the tank height from the top of the mixing tank (1); a plurality of inner spray holes forming an angle of 30° to 60° with the axis of the rotating shaft (3) and outer spray holes parallel to the axis of the rotating shaft (3) are arranged on the annular pipe.
6. The stirring device for viscous materials according to claim 1, wherein The other end of the feed pipe (7) is connected to a viscous material feeding pump and a feeding bin.
7. The stirring device for viscous materials according to claim 1, characterized in that, The number of the axial-flow paddles is three.
8. A stirring device for viscous materials according to claim 1, characterized in that, The bottom of the mixing tank (1) is communicated with a discharge pipe (10); a clamp and / or a valve are sequentially arranged on the discharge pipe (10); the outer side of the bottom of the mixing tank (1) is connected with a mixing tank foot (9).
9. A stirring device for viscous materials according to claim 1, characterized in that, The driving device is a driving motor (2) with a forward and reverse rotation function.
10. The stirring device for viscous materials according to claim 1, characterized in that, A bearing and a sealing device are arranged at the connection between the rotating shaft (3) and the top of the mixing tank (1).