Feeding structure for aluminum paste dehydrating and powdering device
By using an extrusion dryer in the production process of aluminum powder paste, the problem of high moisture content in the prior art needs to be repeatedly dried after the initial dehydration of aluminum powder, and a more efficient drying and transportation process is achieved.
Patent Information
- Application Number
- CN202421660170.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the production process of existing aluminum powder paste, the moisture content of aluminum powder after initial dehydration is about 30%, and it needs to be sent to the dryer in batches for drying. The process is cumbersome and inefficient.
An extrusion dryer is adopted, including an extrusion shell, an extrusion roller one and two, and a resistive wire is buried on the roller body, and the extrusion roller is driven by a motor to rotate in reverse, and the aluminum powder moved from top to bottom is dried.
It reduces the energy of manual repeated handling, improves the drying and conveying efficiency of aluminum powder, and reduces manual consumption.
Smart Images
Figure CN222783897U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of aluminum powder paste production, and more specifically, to a feeding structure for an aluminum powder paste dehydration and powdering device. Background Art
[0002] During the production process of aluminum powder paste, the ground aluminum powder paste needs to be dried and transported, and water needs to be added during grinding. After screening, collection, initial dehydration and drying, dry aluminum powder is obtained, and finally the paste making stage is carried out.
[0003] The existing drying method is to put the wet aluminum powder into the dryer in batches. However, after the aluminum powder is taken out from the grinder for the first time, the aluminum powder will be dehydrated for the first time. The moisture content of the aluminum powder after dehydration is about 30%, and it will not drip downward. Only some moisture still exists among the aluminum powder particles. The aluminum powder with a moisture content of about 30% is sent into the dryer in batches and then taken out. The whole process repeats the same activity repeatedly, which is rather troublesome. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a feeding structure for an aluminum powder paste dehydration and powdering device to solve the above-mentioned problems.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding structure for an aluminum powder paste dehydration and powdering device, including an extrusion dryer, including an extrusion shell, an extrusion roller one and an extrusion roller two, the extrusion roller one and the extrusion roller two are both rotatably connected to the extrusion shell, the extrusion roller one and the extrusion roller two are tangentially arranged, and the extrusion roller one and the extrusion roller two are both buried with resistance wires electrically connected to the outside, and a motor is arranged on the outside of the extrusion dryer, and the motor drives the extrusion roller one and the extrusion roller two to rotate in opposite directions; a conveying mechanism, a filter screen is installed inside, and the sides of the conveying mechanism are respectively provided with a horizontal outlet and a vertical outlet, wherein the flow direction of the horizontal outlet and the airflow output by the fan are kept consistent.
[0006] In a preferred embodiment, the squeezing roller one includes a roller body one and a ridge, the ridge is fixed to the side of the roller body one, the squeezing roller two includes a roller body two and a groove, the groove is opened on the side of the roller body two, the roller body one and the roller body two are arranged tangently, and the ridge and the groove are fitted together.
[0007] In a preferred embodiment, the cross-sectional shapes of the ridges and the grooves are equal, both being isosceles trapezoids.
[0008] In a preferred embodiment, a brush is fixed in the extrusion shell, and the brush is used to interfere with the surface of the ridge or groove.
[0009] In a preferred embodiment, the obtuse angle between the brush and the extrusion shell is less than or equal to the obtuse angle of the isosceles trapezoid.
[0010] In a preferred embodiment, the transport mechanism includes a second shell, a circular cavity, a transport port and an air pressure pipe. A circular cavity is opened in the second shell, and the transport port and the air pressure pipe are fixed on the second shell. The air pressure pipe is used to connect the circular cavity and the fan.
[0011] In a preferred embodiment, there are at least two transfer ports, one of which is arranged horizontally, and the other is arranged vertically downward.
[0012] Technical effects and advantages of the utility model:
[0013] The present application utilizes an extrusion contact drying method, in conjunction with aluminum powder moving from top to bottom, to dry the moving aluminum powder, thereby reducing the energy spent on repeated manual handling, reducing labor consumption, and improving the efficiency of drying and conveying aluminum powder. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the technical solution of the present utility model and constitute a part of the present utility model. The embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation on the present utility model.
[0015] Figure 1 It is a schematic diagram of a feeding structure for an aluminum powder paste dehydration and powdering device of the utility model.
[0016] Figure 2 It is a cross-sectional view of the feeding structure of the utility model.
[0017] Figure 3 This is the internal structure diagram of the extrusion drying mechanism of the utility model.
[0018] Figure 4 This is a structural diagram of the extrusion roller one and the extrusion roller two of the utility model.
[0019] Figure 5 It is a side view of the first squeezing roller and the second squeezing roller of the utility model.
[0020] Figure 6 This is a schematic diagram of the installation position of the brush of the utility model.
[0021] The figures are marked as follows: 1. extrusion drying mechanism; 11. extrusion shell; 12. extrusion roller one; 121. roller body one; 122. ridge; 13. extrusion roller two; 131. roller body two; 132. groove; 14. brush; 2. feed port; 3. conveying mechanism; 31. shell two; 32. circular cavity; 33. conveying port; 34. air pressure pipe. DETAILED DESCRIPTION
[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of the present disclosure will be more comprehensive and complete and the concepts of the example embodiments will be fully conveyed to those skilled in the art. The accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.
[0023] In addition, the described features, structures or characteristics may be combined in one or more example embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the example embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, steps, etc. may be adopted. In other cases, well-known structures, methods, implementations or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.
[0024] Example 1
[0025] like Figure 1-Figure 6 The utility model provides a feeding structure for an aluminum powder paste dehydration and powdering device, which mainly includes three parts: an extrusion dryer 1, a feeding port 2 and a conveying mechanism 3.
[0026] The trumpet-shaped feed port 2 is located at the top and is used to receive aluminum powder with a water content of about 30% that has been initially dehydrated and falls from above.
[0027] The extrusion dryer 1 plays the role of conveying dried materials, and mainly includes an extrusion shell 11, an extrusion roller 12, an extrusion roller 2 13 and a brush 14. The small end of the feed port 2 is fixedly connected to the extrusion shell 11;
[0028] The extrusion roller 12 and the extrusion roller 2 13 are rotatably connected to the side wall of the extrusion shell 11. A motor is installed on the outside of the extrusion dryer 1. The output shaft of the motor is fixedly connected to the gear 1 and the extrusion roller 12. The extrusion roller 2 13 is fixedly connected to the gear 2. The extrusion roller 12 and the extrusion roller 2 13 are arranged tangentially. The gear 1 and the gear 2 are meshed for transmission. In this way, when the motor is running, it can drive the extrusion roller 12 and the extrusion roller 2 13 to rotate towards each other, thereby squeezing and dehydrating the aluminum powder located between the extrusion roller 12 and the extrusion roller 2 13.
[0029] Furthermore, resistance wires are installed inside the extrusion roller 12 and the extrusion roller 2 13. When energized, the resistance wires are heated, which can heat the surfaces of the extrusion roller 12 and the extrusion roller 2 13, thereby further drying the extruded aluminum powder.
[0030] During the above extrusion process, on the one hand, the water content of the aluminum powder itself is not high, and on the other hand, partial evaporation can be achieved through the extrusion of the extrusion roller 12 and the extrusion roller 2 13 to achieve solid-liquid separation, so that liquid will not overflow inside the entire structure.
[0031] The conveying mechanism 3 includes a shell 31, a circular cavity 32, a conveying port 33 and an air pressure pipe 34. The circular cavity 32 is opened in the shell 31. Since the circular cavity 32 has no corners, the powder jamming can be effectively reduced. The fan is connected to the circular cavity 32 through the air pressure pipe 34. The horizontal side and the lower end of the shell 31 are fixed with conveying ports 33, and the conveying ports 33 are connected to the circular cavity 32.
[0032] A filter is also fixed in the circular cavity 32. When the aluminum powder is squeezed, the water dripping will penetrate under the filter and flow out to the outside of the entire structure through the downward conveying port 33. The aluminum powder, because its particles are larger than water molecules, will remain above the filter and be driven by the airflow of the fan to move from the conveying port 33 on the horizontal side to a designated position, so as to facilitate unified and centralized recovery by the user.
[0033] Preferably, the material of the filter screen can be selected from: nylon mesh or filter cloth, ceramic filter element, microfiltration membrane or ultrafine fiber filter material.
[0034] Preferably, the fan can blow out warm air to further improve the drying ability of the fallen aluminum powder.
[0035] Furthermore, by changing the distance from the aluminum powder falling from the extrusion dryer 1 to the circular cavity 32, the aluminum powder will be scattered when it hits the filter screen, thereby achieving the purpose of powdering. Moreover, even if the moisture on the filter screen is mixed with part of the aluminum powder, the aluminum powder can be gradually dried under the continuous blowing of warm air and output from the horizontally arranged conveying port 33 along with the warm air.
[0036] The above structure greatly reduces the repetitiveness of the user's operation and also improves the efficiency of dry-wet separation in the process from when the aluminum powder enters the structure to when it leaves the structure.
[0037] Furthermore, a resistance wire for drying can be arranged on the moving path of the aluminum powder from the extrusion dryer 1 to the circular cavity 32. The resistance wire is also connected to an external power supply, which can also improve the drying effect of the aluminum powder during the falling process of the aluminum powder.
[0038] Example 2
[0039] like Figure 3-Figure 6On the basis of Example 1, the extrusion roller 12 includes a roller body 121 and ridges 122, and a plurality of ridges 122 are fixed to the side of the roller body 121. The extrusion roller 13 includes a roller body 131 and grooves 132, and a plurality of grooves 132 are opened on the side of the roller body 131. The roller body 121 and the roller body 131 are arranged tangentially, and the ridges 122 and the grooves 132 are fitted together. The ridges 122 and the grooves 132 increase the contact area with the aluminum powder, thereby improving the drying efficiency.
[0040] Preferably, the cross-sectional shapes of the ridge 122 and the groove 132 are equal, both are isosceles trapezoids, and a brush 14 is fixed in the extrusion shell 11, and the brush 14 is used to interfere with the surface of the ridge 122 or the groove 132 to sweep away aluminum powder attached to the surface of the ridge 122 and the groove 132.
[0041] The shape example of this embodiment is not limited to an isosceles trapezoid, and may also be other shapes.
[0042] Preferably, the angle a between the brush 14 and the extrusion shell 11 is less than or equal to the obtuse angle b of the roller body 131. In this way, when the extrusion roller 12 or the extrusion roller 13 rotates, the brush 14 can smoothly contact the corners of the trapezoid, push out the aluminum powder stuck in the corners, and reduce the residual rate of aluminum powder on the extrusion roller 12 and the extrusion roller 13.
[0043] It should be noted that the two sides of a refer to: the straight line where the brush 14 is located, and the tangent line where the connection point between the brush 14 and the extrusion shell 11 is located.
[0044] In summary, the present application utilizes an extrusion contact drying method, combined with aluminum powder moving from top to bottom, to dry the moving aluminum powder, thereby reducing the energy spent on repeated manual handling, reducing labor consumption, and improving the efficiency of drying and conveying aluminum powder.
[0045] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
[0046] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0047] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0048] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A feeding structure for an aluminum paste dehydration and powdering device, characterized in that include: An extrusion drying machine (1) comprises an extrusion shell (11), an extrusion roller 1 (12) and an extrusion roller 2 (13), wherein the extrusion roller 1 (12) and the extrusion roller 2 (13) are both rotatably connected to the extrusion shell (11), the extrusion roller 1 (12) and the extrusion roller 2 (13) are arranged tangentially to each other, and resistance wires electrically connected to the outside are embedded in the extrusion roller 1 (12) and the extrusion roller 2 (13), and a motor is arranged outside the extrusion drying machine (1), and the motor drives the extrusion roller 1 (12) and the extrusion roller 2 (13) to rotate in opposite directions; The conveying mechanism (3) has a filter screen installed inside, and the side of the conveying mechanism (3) is respectively provided with a horizontal outlet and a vertical outlet, wherein the flow direction of the airflow output by the horizontal outlet and the fan is consistent.
2. The feeding structure for the aluminum paste dehydration and powdering device according to claim 1 is characterized by: The squeezing roller one (12) comprises a roller body one (121) and a convex ridge (122), wherein the convex ridge (122) is fixed to the side of the roller body one (121), and the squeezing roller two (13) comprises a roller body two (131) and a groove (132), wherein the groove (132) is opened on the side of the roller body two (131), the roller body one (121) and the roller body two (131) are arranged tangentially, and the convex ridge (122) and the groove (132) are fitted together.
3. The feeding structure for the aluminum paste dehydration and powdering device according to claim 2 is characterized by: The cross-sectional shapes of the ridge (122) and the groove (132) are equal, and are both isosceles trapezoids.
4. The feeding structure for the aluminum paste dehydration and powdering device according to claim 3 is characterized by: A brush (14) is fixed inside the extrusion shell (11), and the brush (14) is used to interfere with the surface of the ridge (122) or the groove (132).
5. The feeding structure for the aluminum paste dehydration and powdering device according to claim 4 is characterized in that: The degree of the obtuse angle between the brush (14) and the extrusion shell (11) is less than or equal to the degree of the obtuse angle of the isosceles trapezoid.
6. The feeding structure for the aluminum paste dehydration and powdering device according to claim 1 is characterized by: The transport mechanism (3) comprises a second shell (31), a circular cavity (32), a transport port (33) and an air pressure pipe (34); the second shell (31) is provided with a circular cavity (32); the transport port (33) and the air pressure pipe (34) are fixed on the second shell (31); the air pressure pipe (34) is used to connect the circular cavity (32) and the fan.
7. A feeding structure for an aluminum paste dehydration and powdering device according to claim 6, characterized in that: There are at least two conveying ports (33), one of which is arranged horizontally, and the other is arranged vertically downward.