A drying device for clay sand processing
By separating the clay sand with inner and outer filter screens, the problem of small contact area of clay sand in drum dryers is solved, achieving a more efficient drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUAXIN SHENGYE CASTING MASCH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-26
AI Technical Summary
Clay sand tends to stick tightly to the inner wall of a rotary drum dryer, resulting in a small contact area and affecting drying efficiency.
The clay sand is separated by inner and outer filter screens, and dispersed by the inner and outer filter screens, so that the clay sand is in a suspended state, increasing the contact area with hot air.
This improves the drying efficiency of clay sand, ensures effective contact between clay sand and hot air, and enhances the overall efficiency of the dryer.
Smart Images
Figure CN224285198U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clay sand processing technology, specifically a drying device for clay sand processing. Background Technology
[0002] Clay sand, an important type of molding sand in the foundry industry classified according to the clay content of the original sand, plays a crucial role in casting production. There are two main methods for preparing molding sand used in production: one is to mix recycled sand with an appropriate amount of new sand, clay, and water evenly; the other is to use entirely new materials. In order to effectively save molding materials and reduce the cost of casting manufacturing, old sand is usually recycled and reused. Before the old sand is reused, it needs to undergo a series of processing steps, including crushing, magnetic separation, primary screening, washing, drying, and secondary screening. Among these, the drying process is particularly important. Generally, a drum dryer is used to dry the washed old sand to ensure that it meets the requirements of subsequent production.
[0003] Currently, clay sand accumulates directly at the bottom of the drum dryer after entering it. Although the drum dryer can turn the clay sand over by rotating, a large amount of clay sand still adheres tightly to the inner wall of the dryer. This situation greatly limits the contact area between the clay sand and the hot air, which is not conducive to improving the drying efficiency of the drum dryer. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a drying device for clay sand processing, which enables the clay sand to be dispersed more evenly during the drying process and improves the drying efficiency of the dryer body.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for clay sand processing, comprising a dryer body, an end plate rotatably connected to one end of the discharge port of the dryer body, an air inlet pipe fixedly connected to the middle position of the end plate, a heating component fixedly connected to the inner side of the air inlet pipe, an air inlet component fixedly connected to the end of the air inlet pipe away from the end plate, and an inner filter screen and an outer filter screen installed inside the dryer body, the outer filter screen being sleeved on the outside of the inner filter screen.
[0006] Furthermore, two sets of positioning rings are fixedly connected inside the dryer body at the end away from the end plate, and the two sets of positioning rings are respectively matched with the inner filter screen and the outer filter screen.
[0007] Furthermore, a slot is provided on the side of the dryer body near the end plate, and an outer support ring is fitted on the outer side of the filter screen near the end plate. Positioning plates matching the slot are fixed to both sides of the outer support ring. An inner support ring is fitted on the outer side of the inner filter screen near the end plate. Mounting plates matching the slot are fixed to both sides of the inner support ring. The inner support ring is located between the outer support ring and the end plate.
[0008] Furthermore, an inner discharge pipe is fixedly connected to the lower end of the air inlet pipe, a middle discharge pipe is provided below the air inlet pipe, and an outer discharge pipe is provided below the middle discharge pipe. Both the middle discharge pipe and the outer discharge pipe are fixedly connected to the end plate.
[0009] Furthermore, the lower ends of the middle discharge pipe and the outer discharge pipe are inclined toward the two sides of the dryer body, respectively.
[0010] Furthermore, the sum of the widths of the mounting plate and the positioning plate is equal to the length of the slot.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] In this type of drying device for clay sand processing, after the clay sand enters the main body of the dryer, the clay sand is separated by the inner and outer filter screens. In this way, when the main body of the dryer rotates, the clay sand can be screened and dispersed by the inner and outer filter screens, allowing some of the clay sand to be suspended in the air, increasing the contact area between the clay sand and the hot air, and improving the drying efficiency of the main body of the dryer. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a partial sectional view of the entire utility model;
[0015] Figure 3 This utility model Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;
[0016] Figure 4 This utility model Figure 2 A magnified schematic diagram of the local structure at point B;
[0017] Figure 5 This is a partial structural diagram of one end of the dryer body of this utility model.
[0018] In the diagram: 1. Dryer body; 2. End plate; 3. Air inlet pipe; 4. Positioning ring; 5. Inner filter screen; 6. Outer filter screen; 7. Inner discharge pipe; 8. Middle discharge pipe; 9. Outer discharge pipe; 10. Inner support ring; 11. Mounting plate; 12. Outer support ring; 13. Positioning plate; 14. Slot. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figure 1-5 A drying device for processing clay sand includes a dryer body 1. An end plate 2 is rotatably connected to one end of the discharge port of the dryer body 1. An air inlet pipe 3 is fixedly connected to the middle position of the end plate 2. A heating component is fixedly connected to the inner side of the air inlet pipe 3. An air inlet component is fixedly connected to the end of the air inlet pipe 3 away from the end plate 2. An inner filter screen 5 and an outer filter screen 6 are installed inside the dryer body 1. The outer filter screen 6 is sleeved on the outside of the inner filter screen 5.
[0021] In this invention, the drying device for clay sand processing separates the clay sand into the dryer body 1 after it enters the dryer body 1. This separation is achieved by the inner filter screen 5 and the outer filter screen 6. As the dryer body 1 rotates, the clay sand is both screened and dispersed by the inner and outer filter screens 5 and 6, allowing some of the clay sand to remain suspended. This increases the contact area between the clay sand and the hot air, thereby improving the drying efficiency of the dryer body 1. Furthermore, the dryer body 1, end plate 2, air inlet pipe 3, heating components, and air inlet components are all existing mature products and will not be described in detail here. They are also not shown in detail in the figures.
[0022] like Figure 2 and Figure 3 As shown, two sets of positioning rings 4 are fixed inside the dryer body 1 at the end away from the end plate 2. The two sets of positioning rings 4 are matched with the inner filter screen 5 and the outer filter screen 6, respectively.
[0023] like Figure 5 As shown, a slot 14 is provided on the side of the dryer body 1 near the end plate 2. An outer support ring 12 is fitted on the outer side of the filter screen 6 near the end plate 2. Positioning plates 13 matching the slot 14 are fixed to both sides of the outer support ring 12. An inner support ring 10 is fitted on the outer side of the filter screen 5 near the end plate 2. Mounting plates 11 matching the slot 14 are fixed to both sides of the inner support ring 10. The inner support ring 10 is located between the outer support ring 12 and the end plate 2.
[0024] Specifically, when installing the inner filter 5 and the outer filter 6, first insert the positioning plate 13 into the slot 14, then insert the outer filter 6 from the middle position of the outer support ring 12 until the end of the outer filter 6 is inserted between the positioning rings 4. Next, insert the mounting plate 11 into the slot 14, then insert the inner filter 5 from the middle position of the inner support ring 10 until the end of the inner filter 5 is inserted between the positioning rings 4. Finally, install the end plate 2, and use the end plate 2 to press the inner filter 5 and the outer filter 6 together. The whole operation process is simple and convenient.
[0025] like Figure 2 and Figure 4As shown, an inner discharge pipe 7 is fixedly connected to the lower end of the air inlet pipe 3, a middle discharge pipe 8 is provided below the air inlet pipe 3, and an outer discharge pipe 9 is provided below the middle discharge pipe 8. Both the middle discharge pipe 8 and the outer discharge pipe 9 are fixedly connected to the end plate 2.
[0026] Specifically, the inner discharge pipe 7, the middle discharge pipe 8, and the outer discharge pipe 9 respectively collect the clay sand inside the inner filter screen 5, between the inner filter screen 5 and the outer filter screen 6, and outside the outer filter screen 6. This can separate clay sand of different diameters, making it easier to select and use later.
[0027] like Figure 2 and Figure 4 As shown, the lower ends of the middle discharge pipe 8 and the outer discharge pipe 9 are inclined to both sides of the dryer body 1, respectively. This inclination to both sides makes the collection of clay sand more convenient.
[0028] like Figure 5 As shown, the sum of the widths of the mounting plate 11 and the positioning plate 13 is equal to the length of the slot 14.
[0029] Specifically, if the sum of the widths of the mounting plate 11 and the positioning plate 13 is not equal to the length of the slot 14, the mounting plate 11 and the positioning plate 13 are prone to shaking, affecting the stability of the equipment.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A drying device for clay sand processing, comprising a drying machine main body (1), characterized in that, One end of the discharge port of the dryer body (1) is rotatably connected to an end plate (2). An air inlet pipe (3) is fixedly connected to the middle position of the end plate (2). A heating component is fixedly connected to the inner side of the air inlet pipe (3). An air inlet component is fixedly connected to the end of the air inlet pipe (3) away from the end plate (2). An inner filter screen (5) and an outer filter screen (6) are installed inside the dryer body (1). The outer filter screen (6) is sleeved on the outside of the inner filter screen (5).
2. The drying apparatus for clay sand processing according to claim 1, characterized in that, Two sets of positioning rings (4) are fixed inside the dryer body (1) at the end away from the end plate (2). The two sets of positioning rings (4) are matched with the inner filter screen (5) and the outer filter screen (6) respectively.
3. The drying apparatus for clay sand processing according to claim 1, characterized in that, The dryer body (1) has a slot (14) on one side near the end plate (2). The outer filter (6) is fitted with an outer support ring (12) on the outside of the end plate (2). Both sides of the outer support ring (12) are fixed with positioning plates (13) that match the slot (14). The inner filter (5) is fitted with an inner support ring (10) on the outside of the end plate (2). Both sides of the inner support ring (10) are fixed with mounting plates (11) that match the slot (14). The inner support ring (10) is located between the outer support ring (12) and the end plate (2).
4. The drying apparatus for clay sand processing according to claim 1, characterized in that, The lower end of the air inlet pipe (3) is fixedly connected to an inner discharge pipe (7), and a middle discharge pipe (8) is provided below the air inlet pipe (3). An outer discharge pipe (9) is provided below the middle discharge pipe (8). Both the middle discharge pipe (8) and the outer discharge pipe (9) are fixedly connected to the end plate (2).
5. A drying apparatus for clay sand processing according to claim 4, characterized in that, The lower ends of the middle discharge pipe (8) and the outer discharge pipe (9) are inclined toward the two sides of the dryer body (1), respectively.
6. A drying apparatus for clay sand processing according to claim 3, characterized in that, The sum of the widths of the mounting plate (11) and the positioning plate (13) is equal to the length of the slot (14).