Bubble flow breaking device

Abstract

The utility model discloses a bubble flow breaking device which comprises a stirring cylinder, a rotatable stirring assembly is arranged in the stirring cylinder, the stirring assembly comprises a hollow shaft, one end of the hollow shaft communicates with a plurality of first bubbling rods, and a plurality of first bubbling holes and a plurality of flow breaking pieces are arranged on the first bubbling rods at intervals. A flow breaking tip is arranged on the flow breaking piece, the rotating direction of the hollow shaft is consistent with the direction of the flow breaking tip, and under the mutual synergistic effect of bubbling and flow breaking, slurry in the stirring cylinder forms a plurality of groups of vortexes which are transversely and longitudinally crossed, so that the slurry in the stirring cylinder is more sufficiently and uniformly stirred; and the collision probability of silicon carbide particles and water is greatly increased, the problem of non-uniform stirring or existence of stirring dead angles is avoided, the stability of the stirring quality is improved, the product quality is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of material washing and filtration, and in particular to a bubble breaking device. Background Art

[0002] Silicon carbide is an inorganic substance with the chemical formula SiC. It is made of quartz sand, petroleum coke (or coal coke), sawdust (salt is needed to produce green silicon carbide) and other raw materials through high-temperature smelting in a resistance furnace. Silicon carbide is a semiconductor that exists in the form of extremely rare mineral moissanite in nature. Silicon carbide ceramics not only have excellent room-temperature mechanical properties, such as high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient, but also have the best high-temperature mechanical properties (strength, creep resistance, etc.) among known ceramic materials.

[0003] Silicon carbide is one of the raw materials for preparing ceramic materials. When producing submicron silicon carbide powder, it needs to go through processes such as grinding, pickling, rinsing, and drying. During the rinsing process, horizontal and vertical crossed stirring rods are generally used to stir and clean the silicon carbide slurry, and the acid and impurity ions attached to the surface of the powder are separated and immersed in pure water. However, the traditional stirring method will cause uneven stirring or stirring dead corners, resulting in incomplete cleaning when rinsing the silicon carbide slurry, thereby affecting the rinsing efficiency. Summary of the invention

[0004] The purpose of this application is to provide a bubble breaking device, which solves the technical problem that the traditional stirring method will cause uneven stirring or stirring dead corners, resulting in incomplete cleaning when rinsing silicon carbide slurry, thereby affecting the rinsing efficiency. To achieve the above purpose, the application discloses a specific technical solution of a bubble breaking device as follows:

[0005] A bubble breaking device comprises a stirring cylinder, wherein a rotatable stirring assembly is arranged in the stirring cylinder, the stirring assembly comprises a hollow shaft, the bottom end of the hollow shaft is connected to a plurality of first bubbling rods, a plurality of first bubbling holes and a plurality of flow breaking members are arranged at intervals on the first bubbling rods, a flow breaking tip is arranged on the flow breaking member, and the rotation direction of the hollow shaft is consistent with the direction of the flow breaking tip.

[0006] Preferably, the flow-breaking member is provided with two flow-guiding inclined surfaces, and the two flow-guiding inclined surfaces intersect to form the flow-breaking tip.

[0007] Preferably, the included angle between the two guide slopes is 10 degrees to 90 degrees.

[0008] Preferably, the top end of the flow-breaking member is provided with a sharp corner.

[0009] Preferably, one end of a plurality of the first bubbling rods is vertically connected to the hollow shaft, and the plurality of the first bubbling rods are evenly arranged around the hollow shaft.

[0010] Preferably, the stirring assembly further comprises a second bubbling rod, which is in a circular ring shape or a polygonal ring shape, is connected to the other ends of a plurality of the first bubbling rods, and is provided with a plurality of second bubbling holes.

[0011] Preferably, a plurality of first check valves are arranged in the first bubbling rod, a plurality of second check valves are arranged in the second bubbling rod, a plurality of the first check valves are arranged in correspondence with a plurality of the first bubbling holes, and a plurality of the second check valves are arranged in correspondence with a plurality of the second bubbling holes.

[0012] Preferably, a stirring rod is provided in the middle section of the hollow shaft.

[0013] Preferably, a key groove is provided at one end of the hollow shaft away from the first bubbling rod.

[0014] Preferably, the inner wall of the mixing cylinder is provided with a raised spiral structure, and the spiral structure includes a left-hand spiral structure or a right-hand spiral structure.

[0015] The technical solution adopted in this application can achieve the following beneficial effects:

[0016] The present application discloses a bubble breaking device, comprising a stirring cylinder, wherein a rotatable stirring assembly is arranged in the stirring cylinder, wherein the stirring assembly comprises a hollow shaft, wherein one end of the hollow shaft is connected to a plurality of first bubbling rods, wherein a plurality of first bubbling holes and a plurality of flow breaking members are arranged at intervals on the first bubbling rods, wherein a flow breaking tip is arranged on the flow breaking member, and the rotation direction of the hollow shaft is consistent with the direction of the flow breaking tip. During the rising process, bubbles bulging out of the bubbling holes affect the rotation state of the slurry, and form a plurality of vortexes in the longitudinal direction; during the rotation process, the flow breaking member forms a plurality of vortexes in the transverse direction, thereby increasing the probability of collision between silicon carbide particles and water, thereby quickly separating the acid and impurity ions attached to the surface of the silicon carbide particles and entering the water. Under the synergistic effect of bubbling and flow breaking, the slurry in the mixing tank forms multiple groups of vortices that cross horizontally and vertically, so that the slurry in the mixing tank is stirred more fully and evenly, and the collision probability of silicon carbide particles and water is greatly increased, avoiding the problems of uneven stirring or dead corners of stirring, improving the stability of stirring quality, and helping to ensure product quality and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the bubble breaking device.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the stirring component.

[0019] Figure 3 This is a partial enlarged schematic diagram of the stirring component.

[0020] Among them: a stirring cylinder 100, a stirring assembly 200, a hollow shaft 210, a first bubbling rod 220, a first bubbling hole 221, a flow-breaking member 230, a flow-breaking tip 231, a sharp corner 232, a second bubbling rod 240, a second bubbling hole 241, a key slot 250, a stirring rod 300, and a spiral structure 400. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0022] It should be noted that when a device is considered to be "connected" to another device, it may be directly connected to the other device or there may be an intermediate device at the same time. The terms "inside", "top", "upper", "lower", "upper", "lower" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Please refer to Figures 1 to 3 The embodiment of the present application discloses a bubble breaking device, comprising a mixing tank 100, wherein:

[0026] A rotatable stirring assembly 200 is arranged in the stirring cylinder 100, and the stirring assembly 200 includes a hollow shaft 210. The bottom end of the hollow shaft 210 is connected to a plurality of first bubbling rods 220. The first bubbling rods 220 are provided with a plurality of first bubbling holes 221 and a plurality of flow-breaking members 230 at intervals. The flow-breaking members 230 are provided with flow-breaking tips 231. The rotation direction of the hollow shaft 210 is consistent with the direction of the flow-breaking tips 231. Among them, the hollow shaft 210 and the first bubbling rod 220 have a hollow structure inside, and the bottom end of the hollow shaft 210 is connected to a plurality of first bubbling rods 220, so that the first bubbling rods 220 are placed at the bottom of the mixing cylinder 100, and a plurality of first bubbling holes 221 and a plurality of flow-breaking members 230 are arranged at intervals on the first bubbling rod 220. The flow-breaking members 230 can be used to break the water flow and reduce the rotation resistance, and can also stir the slurry to form a vortex. Therefore, a flow-breaking tip 231 is provided on the flow-breaking member 230. The flow-breaking tip 231 is mainly used for breaking the flow, so the installation direction of the flow-breaking tip 231 is the same as the running rotation direction of the device. When working, the flow-breaking tip 231 makes a circular motion with the hollow shaft 210 as the center.

[0027] In a specific stirring operation, for example, in the process of rinsing silicon carbide particles, silicon carbide slurry and water are introduced into the stirring cylinder 100, and the external motor drives the stirring assembly 200 to rotate through gears or belt transmission. The stirring assembly 200 rotates and stirs in the stirring cylinder 100, and the bubbling holes at the bottom of the stirring cylinder 100 continuously bulge bubbles, and the bubbles move from bottom to top until they float to the surface of the water. When the flow-breaking member 230 arranged on the first bubbling rod 220 rotates, the flow-breaking tip 231 cuts the water flow, reducing the resistance of the stirring assembly 200 during rotation. At the same time, during the rotation of multiple flow-breaking members 230, multiple groups of vortices with the hollow shaft 210 as the center are formed at the bottom of the stirring cylinder 100, and the vortices spiral upward from bottom to top, driving the slurry in the stirring cylinder 100 to rotate from the bottom slurry of the stirring cylinder 100 to the upper layer. The bubbles bulging out of the bubbling holes affect the rotation state of the slurry during the rising process, forming multiple groups of vortices in the longitudinal direction; the flow-breaking element 230 forms multiple groups of vortices in the transverse direction during the rotation process, which increases the probability of collision between the silicon carbide particles and water, thereby quickly separating the acid and impurity ions attached to the surface of the silicon carbide particles into the water.

[0028] When the above-mentioned device is used to stir the slurry, under the synergistic effect of bubbling and flow breaking, the slurry in the mixing tank 100 forms multiple groups of vortices that cross horizontally and vertically, so that the slurry in the mixing tank 100 is stirred more fully and evenly, and the probability of collision between silicon carbide particles and water is greatly increased, avoiding the problems of uneven stirring or dead corners in stirring, improving the stability of stirring quality, and being beneficial to ensuring product quality and improving production efficiency.

[0029] In order to further optimize the flow-breaking member 230, the flow-breaking member 230 is provided with two flow-guiding inclined surfaces, and the two flow-guiding inclined surfaces intersect to form the flow-breaking tip 231. The shape of the flow-breaking member 230 is a triangular prism, a cylinder or a water drop shape, etc. For example, the shape of the flow-breaking member 230 is a cylinder. After optimization, two flow-guiding inclined surfaces are cut out of one side of the cylinder, and the two flow-guiding inclined surfaces intersect to form a flow-breaking tip 231, and the other side is a flow-breaking tail end. The tip direction of the flow-breaking tip 231 is consistent with the rotation direction of the stirring device, and moves on a circular trajectory with the hollow shaft 210 as the center. During operation, the flow-breaking tip 231 is always in front of the flow-breaking tail end; similarly, when the flow-breaking member 230 is a rhombus column, there are flow-breaking tips 231 at the front and back. At this time, regardless of whether the rotating component rotates clockwise or counterclockwise, the flow-breaking member 230 can play a good flow-breaking role.

[0030] In order to further reduce the resistance of the flow-breaking member 230, a sharp corner 232 is further provided at the top of the flow-breaking member 230. The sharp corner 232 has two inclined surfaces, and the shape of the sharp corner 232 is preferably a tetrahedron, and the angle between the two inclined surfaces is preferably 15 degrees to 80 degrees. The sharp corner 232 can not only help the flow-breaking member 230 to further break the flow, but also reduce the resistance of the flow-breaking member 230.

[0031] In order to balance the stirring and flow-breaking effects of the flow-breaking member 230, the angle between the two flow-guiding slopes of the flow-breaking member 230 is 10 to 90 degrees. Among them, if the angle between the two flow-guiding slopes of the flow-breaking member 230 is smaller, the stirring effect of the flow-breaking member 230 is smaller, and the flow-breaking effect is greater. When the stirring effect is too small, if you want to form a vortex in the mixing tank 100, you need a faster stirring speed to increase the power; if the angle between the two flow-guiding slopes of the flow-breaking member 230 is larger, the stirring effect of the flow-breaking member 230 is greater, and the flow-breaking effect is smaller. At this time, although it is easier to form a stirring vortex, the flow-breaking effect is poor, and the wear on the flow-breaking member 230 is greater. Therefore, the present application preferably sets the angle between the two flow-guiding slopes of the flow-breaking member 230 to 10 to 90 degrees, which can not only form a vortex when the flow-breaking member 230 rotates in the mixing tank 100, but also play a flow-breaking role and reduce the friction of the flow-breaking member 230.

[0032] Specifically, in order to increase the flow velocity at the bottom of the mixing cylinder 100 and achieve uniform foaming, one end of the plurality of first bubbling rods 220 is vertically connected to the hollow shaft 210 and is evenly arranged around the hollow shaft 210. Among them, one end of the plurality of first bubbling rods 220 is connected and arranged at the end of the hollow shaft 210, located at the bottom of the mixing cylinder 100, and the first bubbling rods 220 are evenly arranged around the hollow shaft 210. Preferably, there are 2 to 12 first bubbling rods 220, and the rotation of the first bubbling rods 220 increases the movement velocity of the slurry at the bottom of the mixing cylinder 100. Preferably, the first bubbling rods are sealed away from one end of the hollow shaft. Since the first bubbling rod 220 is also provided with a plurality of bubbling holes, the bubbling holes are evenly arranged at intervals on the first bubbling rod 220, and the size of the bubbles depends on the size of the bubbling holes; the speed of the foaming depends on the pressure of the high-pressure gas, and the size and speed of the bubbles can be adjusted according to work needs. During foaming, countless bubbles move upward from the bottom to form a turbulence effect, which can effectively increase the contact probability and friction between silicon carbide and water flow, thereby improving product quality and cleaning efficiency.

[0033] Furthermore, in order to drive the fluidity of the slurry at the corners at the bottom edge of the stirring cylinder 100, the stirring assembly 200 further includes a second bubbling rod 240, which is in a circular ring shape or a polygonal ring shape, and is connected to the other ends of the plurality of first bubbling rods 220, and is provided with a plurality of second bubbling holes 241. The second bubbling rod 240 is also a hollow bubbling rod, which is connected to the plurality of first bubbling rods 220 at the bottom end of the central axis, and is evenly provided with a plurality of second bubbling holes 241. The provision of the second bubbling rod 240 drives the flow of the slurry at the bottom edge and corners of the stirring cylinder 100, and further ensures the uniformity of the slurry stirring.

[0034] In order to prevent the slurry from flowing back into the bubbling rod, a plurality of first check valves are arranged in the first bubbling rod 220, and a plurality of second check valves are arranged in the second bubbling rod 240. The plurality of first check valves are arranged in alignment with the plurality of first bubbling holes 221, and the plurality of second check valves are arranged in alignment with the plurality of second bubbling holes 241. Among them, a check valve or a one-way valve is arranged in the bubbling rod, and the check valve or the one-way valve is arranged in alignment with the bubbling hole. In the present application, a check valve is preferably used. The setting of the check valve enables the gas to be blown out from the bubbling hole only during the rinsing of the silicon carbide slurry, and the slurry cannot flow back into the bubbling rod through the bubbling hole, which can effectively prevent the slurry from flowing back and blocking the bubbling hole. The bubbling hole includes the first bubbling hole 221, the second bubbling hole 241 and the third bubbling hole described below. When the bubbling rod includes the first bubbling rod 220, the second bubbling rod 240 and the stirring rod 300 described below, which is a hollow rod.

[0035] It should be noted that in the absence of a check valve or a one-way valve, when starting the device, the stirring device needs to be started first and then the slurry is introduced; when stopping, the slurry needs to be discharged first and then the stirring device is stopped, that is, the slurry will not flow back into the bubbling rod without installing a check valve or a one-way valve.

[0036] In order to further increase the chance of turbulence, a stirring rod 300 is provided in the middle section of the hollow shaft 210. Among them, one stirring rod 300 can be provided, or multiple stirring rods 300 can be evenly provided on the hollow shaft 210, and the stirring rod 300 is mainly used to stir the slurry in the upper layer. When the stirring rod 300 is a solid rod, the stirring rod 300 only has a stirring function. When the stirring rod 300 is a hollow rod, it can be connected to the hollow shaft 210, and a third bubbling hole can be provided on the stirring rod 300, so that the stirring rod 300 can stir and foam at the same time, thereby affecting the flow of the upper slurry, so that the upper slurry also forms a variety of vortices.

[0037] It should be noted that in order to allow the gas to be fully emitted from the foaming hole, the end of the hollow rod away from the hollow shaft can be sealed. The end of the hollow rod away from the hollow shaft is sealed to prevent the gas from blowing out from the other end of the hollow rod and affecting the foaming rate of the foaming hole.

[0038] In a specific embodiment, in order to match external components, a key slot 250 is provided at one end of the hollow shaft 210 away from the first bubbling rod 220. The key slot 250 is used to match external components. For example, the key slot 250 can be connected to external devices such as belts, gears, and motors to drive the hollow shaft 210 to rotate, and can also be used to install a handle for manual stirring, so that the device can work more stably and ensure the smooth progress of the production process.

[0039] In a specific embodiment, in order to further increase the collision probability of the slurry, a raised spiral structure 400 is provided on the inner wall of the mixing tank 100, and the spiral structure 400 includes a left spiral structure or a right spiral structure, which is used to bring the upper layer of slurry to the lower layer of the mixing tank 100. Among them, the mixing tank 100 is provided with raised spiral structures 400 from top to bottom. When the device stirs clockwise, the spiral structure 400 is a left spiral structure, and when the device stirs counterclockwise, the spiral structure 400 is a right spiral structure. During the stirring process, the slurry is affected by the spiral structure, and the slurry of the upper layer is brought to the lower layer. When the slurry reaches the bottom of the mixing tank 100, it contacts the bottom of the mixing tank 100 and then rebounds and rises back to the upper layer, thereby forming a circulating water flow, that is, realizing the change of the slurry from horizontal flow to turbulent flow. At the same time, during the process of discharging the slurry, the discharge pressure is increased and the discharge speed is accelerated.

[0040] Furthermore, in order to facilitate the slurry to be discharged from the mixing tank 100, the bottom of the mixing tank 100 is in an inverted cone shape. The inclination angle of the inverted cone can be determined according to the repose angle of the slurry, and cooperates with the spiral structure 400 in the mixing tank 100, which is more conducive to the discharge of the slurry and prevents the slurry from remaining at the bottom of the barrel.

[0041] In a specific embodiment, in order to facilitate the introduction or export of slurry, a feed port and a water inlet are provided on the mixing tank 100, and a discharge port is provided at the bottom of the mixing tank 100. The feed port and the water inlet are located above the mixing tank 100, and a regulating valve is provided on the feed port and the water inlet to prevent the slurry from splashing during the feeding process, reduce the waste of slurry, and improve the ratio accuracy of the slurry. The discharge port is connected to the cone angle at the bottom of the mixing tank 100 to facilitate the export of the slurry, so that the slurry does not remain in the mixing tank 100 after being exported.

[0042] To sum up, all the structures and features in the implementation method, the combination of the stirring component 200 and the stirring cylinder 100, play a synergistic role, wherein the upper layer of slurry in the stirring cylinder 100 flows to the bottom of the stirring cylinder 100 under the action of the raised spiral structure 400, and the bubbling rod and the flow-breaking member 230 at the bottom make the slurry flow from the bottom to the upper layer of the stirring cylinder 100, accompanied by countless bubbles bulging out of the bubbling holes, forming countless bubble turbulent vortices, thereby increasing the probability of collision between silicon carbide particles and water, avoiding the problem of uneven stirring or the existence of stirring dead corners, and improving the stability of the stirring quality, which is beneficial to ensuring product quality and improving production efficiency.

[0043] The above-described embodiments only express the way of equipment layout of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application; it should be pointed out that for ordinary technicians in this field, several adjustments and improvements can be made without departing from the concept of the present application, which all belong to the scope of protection of the present application; therefore, the scope of protection of the patent of this application shall be based on the attached claims.

Claims

1. A bubble breaking device, characterized in that: It comprises a stirring cylinder, in which a rotatable stirring assembly is arranged, the stirring assembly comprises a hollow shaft, the bottom end of the hollow shaft is connected to a plurality of first bubbling rods, a plurality of first bubbling holes and a plurality of flow-breaking members are arranged at intervals on the first bubbling rods, a flow-breaking tip is arranged on the flow-breaking member, and the rotation direction of the hollow shaft is consistent with the direction of the flow-breaking tip.

2. The bubble breaking device according to claim 1, characterized in that: The flow-breaking member is provided with two flow-guiding inclined surfaces, and the two flow-guiding inclined surfaces intersect to form the flow-breaking tip.

3. The bubble breaking device according to claim 2, characterized in that: The included angle between the two guide slopes is 10 degrees to 90 degrees.

4. The bubble breaking device according to claim 1, characterized in that: The top of the flow-breaking member is provided with a sharp corner.

5. The bubble breaking device according to claim 1, characterized in that: One ends of a plurality of the first bubbling rods are vertically connected to the hollow shaft and are evenly arranged around the hollow shaft.

6. The bubble breaking device according to claim 5, characterized in that: The stirring assembly also includes a second bubbling rod, which is in a circular ring shape or a polygonal ring shape, is connected to the other ends of a plurality of the first bubbling rods, and is provided with a plurality of second bubbling holes.

7. The bubble breaking device according to claim 6, characterized in that: A plurality of first check valves are arranged in the first bubbling rod, a plurality of second check valves are arranged in the second bubbling rod, a plurality of the first check valves are arranged in correspondence with a plurality of the first bubbling holes, and a plurality of the second check valves are arranged in correspondence with a plurality of the second bubbling holes.

8. The bubble breaking device according to claim 1, characterized in that: The middle section of the hollow shaft is provided with a stirring rod.

9. The bubble breaking device according to claim 1, characterized in that: A key groove is arranged at one end of the hollow shaft away from the first bubbling rod.

10. The bubble breaking device according to claim 1, characterized in that: The inner wall of the mixing cylinder is provided with a raised spiral structure, and the spiral structure includes a left spiral structure or a right spiral structure.

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