Powder drying and mixing device

Abstract

The utility model discloses a powder drying and mixing device. The powder drying and mixing device comprises a drying cylinder for containing powder and at least two air blowing assemblies arranged on the drying cylinder at intervals. The drying cylinder comprises a drying cylinder body and a material crushing part, and the material crushing part is arranged at a feeding opening in the top end of the drying cylinder body; at least part of the side wall of the drying barrel is obliquely arranged, so that the horizontal section of the bottom end of the drying barrel is smaller than that of at least part of other height positions. The air blowing assembly comprises an air blower and an air blowing pipe, and the two ends of the air blowing pipe communicate with the air blower and the drying barrel correspondingly. The air blowing pipe of at least one air blowing assembly communicates with the lowest position of the drying barrel; and the connecting positions of the blast pipes of the at least two blast assemblies on the drying cylinder enable the powder to circularly flow in the drying cylinder. According to the powder drying device, powder can be dried, and various kinds of powder can be mixed.

Description

Technical Field

[0001] This application relates to the field of laboratory auxiliary equipment technology, and in particular to a powder drying and mixing device. Background Technology

[0002] Powders are widely used in laboratories. Before application, these powders need to undergo pretreatment, such as drying and refining. If multiple powders are involved, they often need to be mixed. Powdered materials are prone to absorbing moisture and clumping when left for a long time. Production processes often have very strict requirements on the particle size of powdered materials. Powdered materials with excessively large particle sizes can easily cause uneven mixing and affect the performance of the finished product. Therefore, powdered materials are often pretreated such as drying before use.

[0003] Currently, there is a method for drying powder in the laboratory, which involves placing the coating powder in a beaker and putting it in a drying oven for ten hours. This method is slow, very time-consuming, and the drying effect is difficult to guarantee; the material in the center of the beaker may not be dry enough to meet the requirements of the coating equipment.

[0004] Currently, there is another method for preparing powders in the laboratory, which involves drying various raw materials in a drying oven, then calculating the proportions, and finally manually grinding them in a mortar to achieve fineness and mixing. This method requires a long time of manual grinding, and the fineness and mixing degree of the powder cannot be guaranteed. In addition, since the powder is dried before grinding, the dryness of the powder may decrease during the grinding process. Utility Model Content

[0005] The technical problem to be solved by this application is to provide a powder mixing and drying apparatus.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] Constructing a powder mixing and drying apparatus, comprising:

[0008] A drying cylinder for containing powder includes a drying cylinder body and a powder crushing component, the powder crushing component being disposed at a feed inlet at the top of the drying cylinder body; at least a portion of the sidewalls of the drying cylinder body are inclined, such that the horizontal cross-section at the bottom of the drying cylinder body is smaller than the horizontal cross-section at at least a portion of the remaining height positions; and

[0009] At least two blower assemblies are respectively and spaced apart on the drying cylinder. Each blower assembly includes a blower and a blower pipe. The two ends of the blower pipe are respectively connected to the blower and the drying cylinder. The blower pipe of at least one of the blower assemblies is connected to the lowest point of the drying cylinder.

[0010] The connection position of the blower pipes of the at least two blower assemblies on the drying cylinder allows the powder to circulate within the drying cylinder.

[0011] In some embodiments, the bottom end of the drying cylinder is in the shape of an inverted cone or frustum.

[0012] In some embodiments, the blower pipe connected to the lowest point of the drying cylinder has its port facing upward inside the drying cylinder.

[0013] In some embodiments, the number of blower assemblies is three, one of which is located at the lowest point of the drying cylinder; the other two blower assemblies are respectively disposed on opposite sides of the drying cylinder; wherein, the blower pipe of the blower assembly located at the lowest point of the drying cylinder is vertically arranged at the end connected to the drying cylinder; the blower pipes of the blower assemblies disposed on opposite sides of the drying cylinder are symmetrically arranged with their ports facing inclines.

[0014] In some embodiments, the system further includes a separation cylinder for collecting the dried and mixed powder. The separation cylinder includes a separation cylinder body and a separation tube, with both ends of the separation tube connected to the separation cylinder body and the drying cylinder body, respectively. The separation tube is connected to the bottom end of the drying cylinder body.

[0015] In some embodiments, the separation cylinder further includes a suction fan, which is connected to the separation cylinder body.

[0016] In some embodiments, the separation cylinder further includes an exhaust box, which is detachably disposed at the top of the separation cylinder and communicates with the separation cylinder, and a filter screen is disposed between the two; the suction fan is connected to the separation cylinder through the exhaust box.

[0017] In some embodiments, the separation cylinder further includes a collection box, which is detachably disposed at the bottom end of the separation cylinder, and a filter screen is detachably disposed between the two.

[0018] In some embodiments, at least one heating component is also included, the heating component being disposed on the blower pipe.

[0019] In some embodiments, the heating assembly includes a heater and a controller for adjusting the temperature of the heater, the heater being disposed on the blower pipe and electrically connected to the controller.

[0020] Implementing this application will have at least the following beneficial effects:

[0021] This application, by incorporating a crushing component, allows for preliminary crushing of the powder to be dried and mixed before it enters the drying cylinder, reducing powder agglomeration, improving the drying and mixing efficiency of the powder within the drying cylinder, and ensuring the particle size of the powder.

[0022] This application sets up at least two blower components, which can generate a circulating airflow within the drying cylinder to achieve the circulation of powder within the drying cylinder. This allows the powder to remain suspended in the air for a long time, ensuring uniform contact with the air and good drying effect. Furthermore, the air circulation can be used to achieve mixing, ensuring the uniformity of powder mixing. Attached Figure Description

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of a powder mixing and drying apparatus according to an embodiment of this application. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this application, the specific embodiments of this application are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "bottom," "inner," "further," and "outer" are based on the orientations or positional relationships shown in some of the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this application.

[0026] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0027] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0028] like Figure 1 As shown, this application constructs a powder mixing and drying apparatus 1, which can perform both powder drying and powder mixing processes. The powder mixing and drying apparatus 1 includes a drying cylinder and at least two blower assemblies 20. The drying cylinder is used to contain the powder, serving as a container for drying and mixing the powder. The at least two blower assemblies 20 are respectively and spaced apart on the drying cylinder to blow gas into the drying cylinder, forming an airflow within the drying cylinder. This causes the powder located within the drying cylinder to circulate within the cylinder, thereby achieving the effects of drying and mixing.

[0029] Specifically, the drying cylinder includes a drying cylinder body 10 and a material crushing component (not shown in the figure). At least a portion of the sidewalls of the drying cylinder body 10 are inclined, such that the horizontal cross-section at the bottom of the drying cylinder body 10 is smaller than the horizontal cross-section at the remaining height of at least a portion of the drying cylinder body 10.

[0030] The top of the drying cylinder 10 is provided with a feed inlet 11 for adding the powder to be dried and mixed into the drying cylinder 10. The crushing component is provided at the feed inlet 11 of the drying cylinder 10 to preliminarily crush and refine the powder to be dried and mixed, reduce the amount of agglomerated powder, and speed up the drying and mixing process.

[0031] Each blower assembly 20 includes a blower 21 and a blower pipe 22. The two ends of the blower pipe 22 are connected to the blower 21 and the drying cylinder 10, respectively. The blower 21 blows air into the drying cylinder 10 through the blower pipe 22. At least one of the at least two blower assemblies 20 has its blower pipe 22 connected to the lowest point of the drying cylinder 10.

[0032] The connection position of the blower pipes 22 of the at least two blower assemblies 20 on the drying cylinder 10 allows the powder to circulate within the drying cylinder 10 during the drying and mixing process (or during the operation of the blower assemblies 20).

[0033] It is important to understand that "the powder can circulate within the drying cylinder 10" can be understood as the coordinated blowing of the three blower components 20 allowing the powder to form a relatively fixed circulating movement path within the drying cylinder 10, enabling the powder to circulate along this relatively fixed path. In this embodiment, the "relatively fixed circulating movement path" can be... Figure 1 The path shown can also be other types of paths in other embodiments. On this cyclic movement path, not all powder moves strictly in the same position. As long as it is ensured that the vast majority of powder can circulate in the direction of the movement path, it can be regarded as the blower assembly 20 forming a relatively fixed cyclic movement path within the drying cylinder 10.

[0034] By incorporating a crushing component, this application allows for preliminary crushing of the powder to be dried and mixed before it enters the drying cylinder 10, reducing powder agglomeration, improving the drying and mixing efficiency of the powder within the drying cylinder 10, and ensuring the particle size of the powder.

[0035] This application sets the bottom horizontal cross-section of the drying cylinder 10 to be smaller than the horizontal cross-section at at least part of the remaining height position, so that the powder located in the drying cylinder 10 can be relatively concentrated at the lowest point of the drying cylinder 10, so that the blower assembly 20 connected to the lowest point of the drying cylinder 10 can blow it up, realizing the circulation flow in the drying cylinder 10.

[0036] This application incorporates at least two blower components 20, which generate a circulating airflow within the drying cylinder 10. This allows the powder to circulate within the drying cylinder 10, ensuring that the powder remains suspended in the air for an extended period, maintaining uniform contact with the air and achieving excellent drying results. Furthermore, the air circulation facilitates mixing, ensuring the uniformity of the powder mixture. This simultaneous drying and mixing significantly improves operational efficiency.

[0037] In some embodiments, the bottom end of the drying cylinder 10 is in the shape of an inverted cone or frustum.

[0038] By setting the bottom of the drying cylinder 10 to an inverted cone or frustum shape, the horizontal cross-section at its lowest point can be smaller, making the bottom of the drying cylinder 10 roughly funnel-shaped. When the powder is poured into the drying cylinder 10, it can be concentrated at the lowest point of the drying cylinder 10 under the action of gravity, so that it can be blown up by the blower assembly 20 located at the bottom.

[0039] In this embodiment, the drying cylinder 10 has a hexagonal cylindrical structure, and the feed inlet 11 is located at the top of the drying cylinder 10 and at one of the corners of the hexagonal cylindrical structure. A cover is also provided at the feed inlet 11 to seal the feed inlet 11 during powder drying and mixing to prevent powder from flowing out.

[0040] In some other alternative embodiments, the drying cylinder 10 may also have other structures such as an elliptical cylinder, a cylindrical cylinder, or a polygonal cylinder.

[0041] In this embodiment, the shredder consists of two sets of parallel blades, each blade comprising three blades. The included angle between the three blades is 120° to ensure the initial refining of the powder. During use, the shredder is equipped with a drive motor (or connected to a drive motor) to drive the blades to rotate, thereby achieving the shredding effect.

[0042] In some other alternative embodiments, the shredder may also be provided with multiple layers of parallel blades. Alternatively, each shredder blade may include multiple blades.

[0043] In some embodiments, the blower assembly 20 located at the lowest point of the drying cylinder 10 has its port facing upward inside the drying cylinder 10.

[0044] In this embodiment, the end of the blower pipe 22 of the blower assembly 20 located at the lowest point is vertically arranged to connect with the drying cylinder 10, so as to blow air vertically upward and blow up the powder that has settled at the lowest point of the drying cylinder 10 due to gravity.

[0045] In some other alternative embodiments, it may also be set slightly tilted upwards.

[0046] like Figure 1 As shown, in this embodiment, there are three blower assemblies 20, one of which is located at the lowest point of the drying cylinder 10, and the remaining two blower assemblies 20 are located on opposite sides of the drying cylinder 10. The blower pipe 22 of the blower assembly 20 located at the lowest point is vertically connected to the drying cylinder 10. The blower pipes 22 of the remaining two blower assemblies 20 have their ports symmetrically oriented at an angle.

[0047] It should be understood that "the two blower pipes 22 are symmetrically oriented with their ports tilted" means that the two blower pipes 22 are connected to the ends of the drying cylinder 10, and their ports are symmetrically oriented with respect to the vertical blower pipe 22 located at the lowest point of the drying cylinder 10. Furthermore, the extension lines of the ports of the two blower pipes 22 are at an angle to the vertical blower pipe 22 located at the lowest point of the drying cylinder 10.

[0048] The three blower components 20 are now defined as blower component 20a, blower component 20b and blower component 20c respectively. Blower component 20a is located at the lowest point of the drying cylinder 10, and blower components 20b and blower components 20c are located on two opposite sides of the drying cylinder 10 respectively.

[0049] Furthermore, in this embodiment, the blower pipe 22 of the blower assembly 20a is connected to one corner of the drying cylinder 10, and is located at the opposite corner of the feed inlet 11 of the drying cylinder 10. The blower pipes 22 of the blower assemblies 20b and 20c are respectively connected to opposite sides of the drying cylinder 10 near the top, that is, respectively located on opposite sides of the feed inlet 11. The blower pipes 22 of the blower assemblies 20b and 20c are respectively slightly inclined downwards, facing opposite directions and symmetrically, so that the powder blown to the top of the drying cylinder 10 by the blower assembly 20a is tilted downwards and back-blown, realizing the circulation of the powder in the drying cylinder 10.

[0050] During the powder drying and mixing process, the powder settled at the bottom of the drying cylinder 10 is vertically blown upwards along the central axis of the drying cylinder 10 by the blower assembly 20a. As the powder flows with the airflow to the top of the drying cylinder 10, it is gradually blown downwards to both sides by the blower assemblies 20b and 20c, causing the powder to separate into two parts that flow downwards from both sides of the drying cylinder 10, returning to the bottom. It is then blown up again by the blower assembly 20a, thus completing the cycle. Figure 1 As shown, in this embodiment, the circulating movement path of the powder within the drying cylinder 10 is approximately a horizontally tilted figure-eight shape.

[0051] In some other alternative embodiments, the air ducts 22 of the blower assembly 20b and the blower assembly 20c may be arranged opposite to each other and symmetrically.

[0052] In some other alternative embodiments, the three blower assemblies 20 may also be (uniformly) spaced apart in the circumferential direction (horizontal or vertical), and the blower pipes 22 of the three blower assemblies 20 may be oriented in the same direction (e.g., all clockwise or all counterclockwise). In this case, the circulating movement path of the powder within the drying cylinder 10 may be approximately circular or elliptical.

[0053] It should be understood that, to ensure the stability of the circulating airflow formed by the blower assembly 20 within the drying cylinder 10, the blower 21 of the blower assembly 20a can be a high-power (large or high-flow) blower to ensure that the powder located at the bottom can be blown up against gravity. The blower 21 of the blower assembly 20b and the blower 21 of the blower assembly 20c can be low-power (small or low-flow) blowers, or they can be set to the same blower 21 as the blower 21 of the blower assembly 20a.

[0054] In some embodiments, the powder drying and mixing apparatus 1 further includes at least one heating component 30 disposed on the blower pipe 22 for heating air to further improve the drying efficiency of the powder.

[0055] Furthermore, the heating assembly 30 includes a heater 31 and a controller 32. The heater 31 is disposed on the air duct 22 and is used to heat the air duct 22, thereby heating the air inside the air duct 22. The controller 32 is electrically connected to the heater 31 and is used to adjust the heating temperature of the heater 31, and can also control the switching of the heater 31 on and off.

[0056] It should be understood that the heater 31 can be cylindrical, surrounding the circumference of the blower pipe 22, and can be configured as a heating resistor to transfer heat in the form of solid heating. Alternatively, it can be configured as a heating mechanism that heats the blower pipe 22 through liquid incubation. Since mature existing technologies can be used, no limitation is made here.

[0057] It should be understood that the controller 32 can also achieve the above effects using existing technology. By presetting the heating temperature of the heater 31 before operation, different degrees of heating and drying effects can be provided for different powders.

[0058] In this embodiment, the heating component 30 is disposed on the blower pipe 22 of the blower component 20a located at the lowest point of the drying cylinder 10.

[0059] In some other alternative embodiments, the number of heating components 30 may also be set to two or three, and heating components 30 may also be provided on the blower pipe 22 of the blower assembly 20b and / or the blower assembly 20c.

[0060] In some other alternative embodiments, when there are multiple heating components 30, two or more heating components 30 may be provided on at least one blower pipe 22 to avoid the blower pipe 22 being too long. After the heating components 30 heat it, the air cools down during the flow.

[0061] In some other alternative embodiments, the heating assembly 30 may also be without a controller 32, and the heater 31 may heat the blower pipe 22 at a constant temperature.

[0062] In some embodiments, the powder drying and mixing apparatus 1 further includes a separation cylinder 40 for separating the mixed and dried powder. The separation cylinder 40 includes a separation cylinder body 41 and a separation tube 42. The separation cylinder body 41 is used to contain the separated powder. The separation tube 42 is connected to both the separation cylinder body 41 and the drying cylinder 10.

[0063] Specifically, the separation tube 42 is connected to the bottom end of the drying cylinder 10, near the blower pipe 22 of the blower assembly 20a, and is located on one side of the blower pipe 22 to facilitate the separation of the dried and mixed powder.

[0064] In some other alternative embodiments, the separation tube 42 may also be located at other positions in the drying cylinder 10. After the powder is dried and mixed, the powder inside the drying cylinder 10 can be poured into the separation cylinder 41 by manually tilting the drying cylinder 10.

[0065] In some embodiments, a switching valve may also be provided on the separation tube 42 to prevent powder that has not been completely dried and mixed from entering the separation tube 42 when the blower assembly 20 is drying and mixing the powder in the drying cylinder 10.

[0066] In this embodiment, the separating cylinder 40 further includes a suction fan 43 and a suction pipe 44. The suction fan 43 is used to draw air from inside the separating cylinder 41. The two ends of the suction pipe 44 are connected to the suction fan 43 and the separating cylinder 41, respectively. Since the separating cylinder 41 is connected to the drying cylinder 10, the powder inside the drying cylinder 10 can be drawn into the separating cylinder 41 by the suction fan 43, achieving automatic powder separation and reducing the workload of operators.

[0067] In some other alternative embodiments, when the separation cylinder 40 is not equipped with a suction fan 43 and a suction pipe 44, and the separation pipe 42 is connected to the drying cylinder 10 at a position relatively close to the bottom, a switch valve can be installed on the separation pipe 42 to prevent powder that has not yet been dried and mixed from entering the separation pipe 42 and the separation cylinder 41 under its own gravity.

[0068] A switching valve can also be installed on the blower pipe 22 of the blower assembly 20. For example, a switching valve can be installed on the blower assembly 20a to prevent powder from falling into the blower pipe 22 under gravity when powder is added to the drying cylinder 10.

[0069] In some embodiments, the separating cylinder 40 further includes an exhaust box 45, which is detachably disposed at the top of the separating cylinder body 41 and communicates with the separating cylinder body 41. A filter screen (not shown in the figure) is also disposed between the exhaust box 45 and the separating cylinder body 41. The suction pipe 44 is connected to the exhaust box 45, so that the suction fan 43 is connected to the separating cylinder body 41 through the exhaust box 45.

[0070] Since the separating cylinder 41 is connected to the suction pipe 44, and the separating cylinder 41 is connected to the drying cylinder 10 through the separating pipe 42, by setting an exhaust box 45 and a filter screen between the exhaust box 45 and the separating cylinder 41, the powder can be blocked by the filter screen during powder separation and will not be sucked out of the separating cylinder 41 by the suction pipe 44.

[0071] It's important to understand that the mesh size of the filter needs to be set according to the specific powder, and it must be smaller than the powder particle size to prevent powder from being sucked out. No specific limit is set here.

[0072] In this embodiment, the filter screen is detachably disposed between the exhaust box 45 and the separation cylinder 41, and can be replaced according to the powder being processed. If the powder particle size is large, a filter screen with a smaller mesh size can be used to improve powder separation efficiency. If the powder particle size is small, a filter screen with a larger mesh size can be used to ensure that the powder is not sucked out.

[0073] In some other alternative embodiments, the separator 40 may not have an exhaust box 45, and the filter screen may be directly placed at the connection between the separator 41 and the suction pipe 44, which can also prevent the powder from being sucked out.

[0074] In some embodiments, the separating cylinder 40 may further include a collection box 46 for collecting the powder after the drying and mixing process is completed. The collection box 46 is detachably disposed at the bottom end of the separating cylinder 41, and a filter screen (not shown) is detachably disposed between the two.

[0075] By placing the collection box 46 at the bottom of the separation cylinder 40, the powder sucked into the separation cylinder 41 by the suction fan 43 can fall into the collection box 46 by its own gravity. By installing a filter screen between the collection box 46 and the separation cylinder 41, unqualified powder can be automatically filtered for further processing. It can also be used in conjunction with a crushing component to achieve double filtration and refinement of the powder, ensuring that the particle size of the processed powder meets the requirements.

[0076] In some other alternative embodiments, when the separator 40 is not provided with a collection box 46, the separator 41 can also function as a collection box 46.

[0077] It should be understood that, since the powders to be separated and mixed are different, the mesh size of the filter screen between the separation cylinder 40 and the collection box 46 may also be different, and no limitation is made here. As long as the powders that do not meet the requirements can be filtered out, it is acceptable.

[0078] It should be understood that the powder drying and mixing device 1 provided in this application can be modified in size according to different powder processing requirements. It features small size, easy control, and precision, and is suitable for powder processing processes with small dosages and high requirements in experiments.

[0079] In this embodiment, the separating cylinder 41 is generally trapezoidal, with its top dimension being larger than its bottom dimension, to ensure that the separated powder can fall into the collection box 46.

[0080] In practical use, the crushing component needs to be opened first, and the powder to be dried and mixed is poured into the drying cylinder 10 through the feed port 11. The powder is crushed when it passes through the crushing component.

[0081] Furthermore, the three blower components 20 are activated, causing the powder to be dried and mixed to be blown up and circulate within the drying cylinder 10. This process achieves both drying and mixing.

[0082] During this process, the heating component 30 can be turned on to heat the air entering the drying cylinder 10 according to the specific needs of the powder, thereby improving the drying efficiency.

[0083] Further, after the powder in the drying cylinder 10 has been dried, the suction fan 43 is turned on to draw the dried and mixed powder out of the drying cylinder 10 to the separation cylinder 41. During this process, the gas is drawn out by the suction fan 43, and the powder remains in the separation cylinder 41, falling under its own gravity and reaching the collection box 46 after being filtered by the filter screen. Powder that does not meet the particle size requirements remains in the separation cylinder 41, awaiting further processing (e.g., grinding and refining).

[0084] It should be understood that when the suction fan 43 is turned on, the blower assembly 20 can be in the on state or in the off state, without limitation.

[0085] It should be understood that the powder drying and mixing device 1 can also perform drying operations on powders containing only a single component.

[0086] It should be understood that when the powder drying and mixing device 1 dries and mixes multiple powders, it is assumed that the multiple powders will not undergo a chemical reaction under the temperature conditions of heating.

[0087] It is understood that the above embodiments only illustrate some implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application's patent. It should be noted that for those skilled in the art, without departing from the concept of this application, the above embodiments or technical features can be freely combined, and several modifications and improvements can be made. These all fall within the protection scope of this application, that is, the embodiments described "in some embodiments" can be freely combined with any of the embodiments above and below. Therefore, all equivalent transformations and modifications made within the scope of the claims of this application should fall within the coverage of the claims of this application.

Claims

1. A powder drying and mixing apparatus, characterized in that, include: A drying cylinder for containing powder includes a drying cylinder body (10) and a crushing component, wherein the crushing component is disposed at the feed inlet (11) at the top of the drying cylinder body (10); at least a portion of the sidewalls of the drying cylinder body (10) are inclined such that the horizontal cross-section at the bottom of the drying cylinder body (10) is smaller than the horizontal cross-section at at least a portion of the remaining height positions; as well as At least two blower assemblies (20) are respectively spaced apart on the drying cylinder (10). Each blower assembly (20) includes a blower (21) and a blower pipe (22). The two ends of the blower pipe (22) are respectively connected to the blower (21) and the drying cylinder (10). The blower pipe (22) of at least one of the blower assemblies (20) is connected to the lowest point of the drying cylinder (10). The connection position of the blower pipe (22) of the at least two blower assemblies (20) on the drying cylinder (10) allows the powder to circulate within the drying cylinder (10).

2. The powder drying and mixing apparatus according to claim 1, characterized in that, The bottom end of the drying cylinder (10) is an inverted cone or frustum shape.

3. The powder drying and mixing apparatus according to claim 1, characterized in that, The blower pipe (22) connected to the lowest point of the drying cylinder (10) has its port facing upward inside the drying cylinder (10).

4. The powder drying and mixing apparatus according to claim 3, characterized in that, The number of blower assemblies (20) is three, one of which is located at the lowest point of the drying cylinder (10); the other two blower assemblies are respectively arranged on opposite sides of the drying cylinder (10); the blower pipe (22) of the blower assembly (20) located at the lowest point of the drying cylinder (10) is vertically arranged at the end connected to the drying cylinder (10); the blower pipes (22) of the blower assemblies (20) arranged on opposite sides of the drying cylinder (10) are symmetrically arranged with their ports tilted.

5. The powder drying and mixing apparatus according to claim 1, characterized in that, It also includes a separation cylinder (40) for collecting the dried and mixed powder. The separation cylinder (40) includes a separation cylinder body (41) and a separation tube (42). The two ends of the separation tube (42) are respectively connected to the separation cylinder body (41) and the drying cylinder body (10). The separation tube (42) is connected to the bottom end of the drying cylinder body (10).

6. The powder drying and mixing apparatus according to claim 5, characterized in that, The separation cylinder (40) also includes a suction fan (43), and the suction fan (43) is connected to the separation cylinder body (41).

7. The powder drying and mixing apparatus according to claim 6, characterized in that, The separation cylinder (40) also includes an exhaust box (45), which is detachably disposed at the top of the separation cylinder body (41) and connected to the separation cylinder body (41), and a filter screen is disposed between the two; the suction fan (43) is connected to the separation cylinder body (41) through the exhaust box (45).

8. The powder drying and mixing apparatus according to claim 5, characterized in that, The separation cylinder (40) also includes a collection box (46), which is detachably disposed at the bottom end of the separation cylinder body (41), and a filter screen is detachably disposed between the two.

9. The powder drying and mixing apparatus according to claim 1, characterized in that, It also includes at least one heating component (30) disposed on the blower pipe (22).

10. The powder drying and mixing apparatus according to claim 9, characterized in that, The heating assembly (30) includes a heater (31) and a controller (32) for adjusting the temperature of the heater (31). The heater (31) is disposed on the blower pipe (22) and is electrically connected to the controller (32).

Images