Diffusion feeding type mixing device

Abstract

The utility model discloses a diffusion feeding type mixing device which comprises a tank body, a stirring assembly and a feeding assembly, and the tank body is provided with a discharging pipe; the stirring assembly comprises a motor, a rotating shaft and a plurality of stirring blades, the stirring blades are connected to the rotating shaft, all the stirring blades are located above the discharging pipe in the tank body, and the rotating shaft is connected to the motor; the feeding assembly comprises a feeding pipe and a diffusion cover, the diffusion cover is located above all the stirring blades, a flow guide cavity with the cavity wall being a conical surface is formed in the diffusion cover, the outlet end of the feeding pipe is located in the flow guide cavity, the axis of the outlet end of the feeding pipe is perpendicular to the center axis of the flow guide cavity, and the axis of the outlet end of the feeding pipe is tangent to the cavity wall of the flow guide cavity. According to the utility model, a guide effect is formed through the flow guide cavity, and a liquid material advances in the flow guide cavity along a spiral downward path, so that the liquid material can be uniformly dispersed to each position in the tank body in the feeding step, the mixing effect is good, and the mixing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of material mixing, in particular to a diffusion-feeding type mixing device. Background Art

[0002] Mixing device, also known as mixing tank, stirring tank, etc., is used for stirring, blending, blending, homogenizing and other operations on materials. It is widely used in coatings, medicine, building materials, chemicals, pigments, resins, food, scientific research and other fields. It has the characteristics of simple operation and easy use.

[0003] In the related art, a mixing device for mixing liquid materials mainly includes a tank body, a motor, a rotating shaft and stirring blades. The liquid material is added into the tank body by manual feeding. After the motor is operated, the stirring blades are driven by the rotating shaft to stir and mix the liquid material in the tank body. This mixing device has the problems of insufficient mixing uniformity and low mixing efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a diffusion feeding type mixing device, which feeds in a diffusion spraying manner, and can effectively improve the mixing uniformity and mixing efficiency.

[0005] According to an embodiment of the utility model, a diffusion-feeding mixing device comprises a tank body, a stirring assembly and a feeding assembly, wherein the tank body is provided with a discharge pipe; the stirring assembly comprises a motor, a rotating shaft and a plurality of stirring blades, each stirring blade is connected to the rotating shaft, and all the stirring blades are located above the discharge pipe in the tank body, the rotating shaft is connected to the motor, and the motor is used to drive the rotating shaft and the stirring blades to rotate; the feeding assembly comprises a feeding pipe and a diffusion cover, the diffusion cover is fixed in the tank body, the diffusion cover is located above all the stirring blades, a guide cavity with a cavity wall as a conical surface is provided in the diffusion cover, the radius of the guide cavity increases toward the side close to the stirring blades, the outlet end of the feed pipe is located in the guide cavity, the axis of the outlet end of the feed pipe is perpendicular to the central axis of the guide cavity, and the axis of the outlet end of the feed pipe is tangent to the cavity wall of the guide cavity.

[0006] In this embodiment, the diffusion cover is in the shape of a truncated cone, the lower bottom of the diffusion cover faces the stirring blade below, the upper bottom of the diffusion cover is connected to the top of the tank body, and the guide cavity is in the shape of a truncated cone.

[0007] In this embodiment, the feed assembly further includes a boost pipe, one end of which is connected to the inlet end of the feed pipe. The boost pipe is conical, and the radius of the boost pipe increases toward the side away from the feed pipe.

[0008] In this embodiment, the feed assembly further includes a feed pipe, which is connected to an end of the boost pipe away from the feed pipe, and a radius of the feed pipe is greater than a radius of the feed pipe.

[0009] In this embodiment, at least two groups of feed components are provided, and each group of feed components is used to convey different liquid materials into the tank body.

[0010] In this embodiment, the discharge pipe is provided with a discharge valve.

[0011] In this embodiment, a manhole and a hole cover located above the manhole are provided on the top of the tank body. The hole cover is rotatably connected to the tank body, and the hole cover is used to cover the manhole.

[0012] In this embodiment, a breathing valve is provided on the top of the tank body, and the bottom end of the breathing valve is connected to the interior of the tank body.

[0013] The embodiments of the present invention have at least the following beneficial effects:

[0014] By arranging a guide cavity with a conical cavity wall above the stirring blade, and arranging the axis of the outlet end of the feed pipe to be tangent to the cavity wall of the guide cavity, when the liquid material enters the guide cavity through the feed pipe, the flow direction of the liquid material is tangent to the cavity wall of the guide cavity, and the cavity wall of the guide cavity can form a good guiding effect on the liquid material, so that the liquid material can rotate around the central axis of the guide cavity. Combined with the effect of gravity, the liquid material advances in the guide cavity in a spiral downward path. When leaving the guide cavity, the liquid material moves to the surroundings of the tank body under the action of centrifugal force, which can form a feeding effect of spraying to the surroundings. The liquid material can be evenly dispersed to various positions inside the tank body during the feeding step, which can provide a good mixing basis for subsequent stirring processing, can effectively improve the uniformity of mixing and reduce the mixing time, and has a good mixing effect and high mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the internal structure of a diffusion-feeding mixing device according to an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view of the diffusion-feeding mixing device according to an embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of a feed assembly in a diffusion-feed type mixing device according to an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the top view of the structure of the feed assembly in the diffusion-feeding mixing device according to an embodiment of the utility model;

[0020] Figure 5 For along Figure 4 Schematic diagram of the cross-sectional structure along the line A-A'.

[0021] Reference numerals:

[0022] Tank body 100, discharge pipe 110, discharge valve 111, manhole 120, hole cover 121, breathing valve 130;

[0023] A stirring assembly 200, a motor 210, a rotating shaft 220, and a stirring blade 230;

[0024] Feed assembly 300 , feed pipe 310 , diffusion cover 320 , flow guide cavity 321 , boost pipe 330 , and supply pipe 340 . DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] The mixing device, also known as a mixing tank or a stirring tank, is used to perform operations such as stirring, blending, blending, and homogenizing materials. It is widely used in the fields of coatings, medicine, building materials, chemicals, pigments, resins, food, and scientific research, and has the characteristics of simple operation and convenient use. In the related art, the mixing device used to mix liquid materials mainly includes a tank body, a motor, a rotating shaft, and a stirring blade. The liquid material is added to the tank body by manual feeding. After the motor is operated, the stirring blade is driven by the rotating shaft to stir and mix the liquid material in the tank body. This mixing device has the problems of insufficient mixing uniformity and low mixing efficiency.

[0030] The following is the attached Figure 1 To Attachment Figure 5 , describing the diffusion feeding type mixing device of the embodiment of the utility model, which feeds in a diffusion spraying manner, can effectively improve the mixing uniformity and mixing efficiency.

[0031] Reference Figures 1 to 5 , a diffusion-feeding mixing device of this embodiment includes:

[0032] The tank body 100 is provided with a discharge pipe 110;

[0033] A stirring assembly 200 includes a motor 210, a rotating shaft 220 and a plurality of stirring blades 230, each of the stirring blades 230 is connected to the rotating shaft 220, and all of the stirring blades 230 are located above the discharge pipe 110 in the tank body 100. The rotating shaft 220 is rotatably connected to the tank body 100, the rotating shaft 220 is connected to the motor 210, the motor 210 is fixedly connected to the tank body 100, the rotating shaft 220 is penetrated through the tank wall of the tank body 100, one end of the rotating shaft 220 is penetrated through the driving end of the motor 210 outside the tank body 100, and the part of the rotating shaft 220 away from the motor 210 is located in the tank body 100 for fixing the stirring blades 230, and the motor 210 is used to drive the rotating shaft 220 and the stirring blades 230 to rotate, so as to stir and mix the liquid material in the tank body 100;

[0034] The feed assembly 300 includes a feed pipe 310 and a diffusion cover 320. The diffusion cover 320 is fixed in the tank body 100. The diffusion cover 320 is located above all the stirring blades. A guide cavity 321 with a conical cavity wall is provided in the diffusion cover 320. The guide cavity 321 can be conical or truncated. The radius corresponding to each position in the guide cavity 321 increases toward the side close to the stirring blade 230, that is, the lower bottom of the guide cavity 321 is arranged toward the stirring blade 230. The outlet end of the feed pipe 310 is located in the guide cavity 321, and the inlet end of the feed pipe 310 is used to receive liquid material supplied from the outside. The axis of the outlet end of the feed pipe 310 is perpendicular to the central axis of the guide cavity 321, and the axis of the outlet end of the feed pipe 310 is tangent to the cavity wall of the guide cavity 321, so that the liquid material input from the feed pipe 310 to the guide cavity 321 spirals down around the cavity wall of the guide cavity 321, which can form a diffuse spraying feeding effect, and the liquid material falls evenly.

[0035] The working process is as follows: liquid material is input from the inlet end of the feed pipe 310, and the liquid material enters the guide cavity 321 from its outlet end through the feed pipe 310 in a direction tangent to the cavity wall. Under the guidance of the cavity wall of the guide cavity 321 and the action of gravity, the liquid material spirals down along the cavity wall of the guide cavity 321, thereby forming a diffuse feeding effect of spraying toward the surrounding areas below at the upper part of the tank body 100, which can effectively improve the uniformity of the liquid material falling to each position and effectively improve the uniform mixing effect.

[0036] By arranging a flow guiding cavity 321 with a conical cavity wall above the stirring blade 230, and arranging the axis of the outlet end of the feed pipe 310 to be tangent to the cavity wall of the flow guiding cavity 321, when the liquid material enters the flow guiding cavity 321 through the feed pipe 310, the vector flow velocity of the liquid material is tangent to the cavity wall of the flow guiding cavity 321, and the cavity wall of the flow guiding cavity 321 can form a large degree of guiding effect on the liquid material, so that the liquid material can rotate around the central axis of the flow guiding cavity 321, and the gravity can be combined with the gravity to form a large degree of guiding effect on the liquid material. The liquid material advances in the guide cavity 321 in a spiral downward path. When leaving the guide cavity 321, the liquid material moves to the surroundings of the tank body 100 under the action of centrifugal force, which can form a feeding effect of spraying to the surroundings. The liquid material can be evenly dispersed to various positions inside the tank body 100 during the feeding step, which can provide a good mixing foundation for subsequent stirring processing, effectively improve the uniformity of mixing and reduce the mixing time, with good mixing effect and high mixing efficiency.

[0037] It can be understood that the diffusion cover 320 is in the shape of a truncated cone, the lower bottom of the diffusion cover 320 faces the stirring blade 230 below, the upper bottom of the diffusion cover 320 is fixedly connected to the top of the tank body 100, and the guide cavity 321 is in the shape of a truncated cone, the lower bottom of the guide cavity 321 is arranged toward the stirring blade 230 below, and the upper body of the guide cavity 321 is arranged away from the stirring blade 230 below, which can effectively save materials and effectively control the weight of the diffusion feeding mixing device.

[0038] In addition, the truncated cone-shaped flow guiding cavity 321 can effectively shorten the flow path of the liquid material in the flow guiding cavity 321, can maintain the speed of the liquid material when leaving the flow guiding cavity 321 to a certain extent, and can effectively improve the dispersed spraying effect of the diffuse feed.

[0039] Specifically, the shape of the guide cavity 321 matches the shape of the diffusion cover 320 , which can reduce the thickness of the diffusion cover 320 .

[0040] It is understandable that the feed assembly 300 further includes a boosting pipe 330, one end of which is connected to the inlet end of the feed pipe 310, and the boosting pipe 330 is conical, and the radius of the boosting pipe 330 increases toward the side away from the feed pipe 310. The liquid material moves in the boosting pipe 330 toward the feed pipe 310, and the liquid material is continuously compressed during the process of the boosting pipe 330 moving forward, which can effectively increase the speed of the liquid material output from the boosting pipe 330, thereby increasing the diffusion effect of the liquid material output from the guide cavity 321.

[0041] It is understandable that the feed assembly 300 further includes a feed pipe 340 , which is connected to one end of the boost pipe 330 away from the feed pipe 310 , and a radius of the feed pipe 340 is greater than a radius of the feed pipe 310 .

[0042] One end of the feed pipe 340 away from the boost pipe 330 is connected to an external feed device. The feed device generally includes a feed tank and a feed pump. The feed pump is used to pump the liquid material in the feed tank to the feed pipe 340 and transmit it to the boost pipe 330 and other pipelines.

[0043] It can be understood that the feeding components 300 are provided with at least two groups, and each group of the feeding components 300 is used to convey different liquid materials into the tank body 100 respectively. By setting up multiple groups of feeding components 300 to complete the feeding and conveying of various liquid materials, the uniformity of the overall stirring and mixing effect can be effectively improved.

[0044] It is understandable that the discharge pipe 110 is provided with a discharge valve 111 , and the discharge pipe 110 can be controlled to discharge the liquid in the tank body 100 by switching the discharge valve 111 .

[0045] It can be understood that the top of the tank body 100 is provided with a manhole 120 and a hole cover 121 located above the manhole 120. The hole cover 121 is rotatably connected to the tank body 100. The hole cover 121 is used to cover the manhole 120. The manhole 120 allows operators to observe, manually add materials, or manually take materials for inspection, etc. The hole cover 121 is used to seal the internal space of the tank body 100 to prevent unnecessary impurities from entering the interior of the tank body 100 through the idle manhole 120.

[0046] Specifically, a breathing valve 130 is provided on the top of the tank body 100. The bottom end of the breathing valve 130 is connected to the interior of the tank body 100, and the top end of the breathing valve 130 is connected to the external environment. It can automatically release gas according to the air pressure difference between the interior of the tank body 100 and the external environment to ensure the safety of the operation.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A diffusion-feeding mixing device, characterized in that: include: The tank body (100) is provided with a discharge pipe (110); A stirring assembly (200), comprising a motor (210), a rotating shaft (220) and a plurality of stirring blades (230), each of the stirring blades (230) being connected to the rotating shaft (220), all of the stirring blades (230) being located above the discharge pipe (110) in the tank body (100), the rotating shaft (220) being connected to the motor (210), and the motor (210) being used to drive the rotating shaft (220) and the stirring blades (230) to rotate; A feed assembly (300) comprises a feed pipe (310) and a diffusion cover (320), wherein the diffusion cover (320) is fixed in the tank body (100), and is located above all the stirring blades. A flow guide cavity (321) having a cavity wall of a conical surface is provided in the diffusion cover (320), and the radius of the flow guide cavity (321) increases toward a side close to the stirring blade (230). The outlet end of the feed pipe (310) is located in the flow guide cavity (321), and the axis of the outlet end of the feed pipe (310) is perpendicular to the central axis of the flow guide cavity (321), and the axis of the outlet end of the feed pipe (310) is tangent to the cavity wall of the flow guide cavity (321).

2. A diffusion-feeding mixing device according to claim 1, characterized in that: The diffusion cover (320) is in the shape of a truncated cone, the lower bottom of the diffusion cover (320) faces the stirring blade (230) below, the upper bottom of the diffusion cover (320) is connected to the top of the tank body (100), and the flow guide cavity (321) is in the shape of a truncated cone.

3. A diffusion-feeding mixing device according to claim 1, characterized in that: The feed assembly (300) further comprises a boost pipe (330), one end of which is connected to the inlet end of the feed pipe (310), the boost pipe (330) is conical, and the radius of the boost pipe (330) increases gradually toward the side away from the feed pipe (310).

4. A diffusion-feeding mixing device according to claim 3, characterized in that: The feed assembly (300) further comprises a feed pipe (340), wherein the feed pipe (340) is connected to an end of the boost pipe (330) away from the feed pipe (310), and a radius of the feed pipe (340) is greater than a radius of the feed pipe (310).

5. A diffusion-feeding mixing device according to claim 1, characterized in that: The feed components (300) are provided with at least two groups, and each group of the feed components (300) is used to convey different liquid materials into the tank body (100).

6. A diffusion-feeding mixing device according to claim 1, characterized in that: The discharge pipe (110) is provided with a discharge valve (111).

7. A diffusion-feeding mixing device according to claim 1, characterized in that: The top of the tank body (100) is provided with a manhole (120) and a hole cover (121) located above the manhole (120); the hole cover (121) is rotatably connected to the tank body (100), and the hole cover (121) is used to cover the manhole (120).

8. A diffusion-feeding mixing device according to claim 1, characterized in that: A breathing valve (130) is provided on the top of the tank body (100), and the bottom end of the breathing valve (130) is connected to the interior of the tank body (100).

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