Foundry used sand recycling equipment
By combining the crushing components and filtering mesh plates in the casting old sand reuse equipment, the crushing and filtration of the casting old sand is achieved, and the problems of cumbersome processes and difficult metal debris processing in the existing technology are solved, and the casting old sand is improved Sand recycling efficiency.
Patent Information
- Application Number
- CN202420542505.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-20
AI Technical Summary
In the prior art, the crushing and filtration process of casting old sand requires multiple sets of equipment, the process is cumbersome and it is difficult to effectively deal with doped metal debris.
A casting old sand reuse equipment was designed, combining the crushing assembly and the filter plate to crush the casting old sand through the crushing assembly, and filtering the filter plates were used for one filter. The filter holes were designed to be trumpet-shaped so that large particles could pass through, scrapers and The crushing knife strip is used to scrape and cut, and the screen is filtered twice.
The integration of crushing and filtration is achieved, equipment funds are saved, process flow is simplified, and the recycling efficiency of casting old sand is improved, ensuring the effective treatment of metal debris.
Smart Images
Figure CN222175839U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of foundry sand recovery, and in particular relates to a device for recycling used foundry sand. Background Art
[0002] Ordinary siliceous foundry sand needs to be hammered densely when used so that the foundry sand in the foundry box forms a whole, thereby ensuring that the foundry sand will not collapse during the pouring process and ensuring the quality of the casting.
[0003] The used foundry sand needs to be crushed to loosen it because its structure is too dense. At the same time, some metal debris may be mixed in the foundry sand. Therefore, after crushing, it needs to be put into the filtering device to filter out the metal debris. The whole process requires multiple sets of equipment and the whole process is relatively cumbersome. Utility Model Content
[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a foundry waste sand recycling equipment, which realizes integrated crushing and filtering by setting a crushing component and a filter screen, saves equipment costs, simplifies the process flow, and improves the recovery efficiency of foundry waste sand.
[0005] The specific technical solution adopted by the utility model is:
[0006] A foundry waste sand recycling device comprises a device tank body, a material inlet is arranged on the top of the device tank body, a crushing assembly and a horizontal filter screen are arranged inside the device tank body, a plurality of groups of filter holes are distributed on the filter screen, the inside of the device tank body is divided into an upper crushing chamber and a lower material dropping chamber by means of the filter screen, the crushing assembly is located in the crushing chamber, the crushing assembly crushes the foundry waste sand and filters the crushed foundry waste sand by means of the filter screen.
[0007] The crushing assembly includes a motor, a turntable and a crushing blade. The side wall of the driving end of the motor is connected to one side of the turntable. A connecting rod perpendicular to the turntable is fixed at the center of the other side of the turntable. The crushing blade is L-shaped. One end of the crushing blade is fixedly connected to the turntable, and the other end of the crushing blade is fixedly connected to the connecting rod. There are multiple groups of crushing blades and they are distributed in a cage-like structure with the connecting rod as the center. The crushing blades are rotated horizontally with the help of the motor.
[0008] The turntable is hinged to the driving end of the motor and has the freedom to rotate around the connecting rod. Spherical protrusions arranged in a ring array are arranged on the circumference of the turntable. The path distance between adjacent spherical protrusions is equal to the distance between adjacent filter holes. The turntable rolls with the help of the step-by-step cooperation between the spherical protrusions and the filter holes, and the crushing blades rotate in the vertical direction with the help of the turntable.
[0009] The crushing assembly also includes a scraper, which is connected to the driving end of the motor and rotates horizontally with the help of the motor. The lower surface of the scraper is in close contact with the upper surface of the filter screen plate, and the crushing blade is spaced 2-4 mm from the upper surface of the filter screen plate.
[0010] A screen and a blanking plate are arranged in the blanking chamber, and both the screen and the blanking plate are arranged at an inclination. The screen is located above the blanking plate, and a filter recovery trough is connected to the bottom of the screen, and a discharge storage trough is connected to the bottom of the blanking plate.
[0011] The filter screen plate is provided with a plurality of filter holes arranged in a ring array, wherein the filter holes are in a trumpet-shaped structure, the small-diameter filter holes face the crushing chamber, and the large-diameter filter holes face the material-dropping chamber.
[0012] The beneficial effects of the utility model are:
[0013] The foundry used sand recycling equipment of the utility model comprises a crushing component and a filter screen plate. The clumped foundry used sand is first crushed by the crushing component, and the crushed foundry used sand is filtered once through the filter screen. Large-grained iron filings and sand blocks cannot pass through the filter holes. Since the large-grained sand blocks cannot pass through the filter holes, they will be further crushed by the crushing component until small-grained gravel is formed and passes through the filter holes, and the iron filings and some large-grained sand blocks that are difficult to crush can be directly collected and centrally processed. The equipment of the utility model can realize the integration of crushing and filtering, save equipment expenses, simplify the process flow, and improve the efficiency of recycling foundry used sand. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the utility model wherein the crushing knife group is horizontally rotated 90°;
[0016] Figure 3 It is a schematic diagram of the structure of the crushing blade;
[0017] Figure 4 for Figure 1 A magnified schematic diagram of part A;
[0018] Figure 5 It is a schematic diagram of the structure of the crushing component;
[0019] In the attached drawings, 1. equipment tank body, 2. filter screen plate, 3. filter hole, 4. motor, 5. turntable, 6. crushing blade, 7. connecting rod, 8. spherical protrusion, 9. scraper, 10. screen, 11. blanking plate, 12. filter recovery tank, and 13. discharge storage tank. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:
[0021] Specific implementation examples Figure 1-2 and Figure 5 As shown, the utility model provides a foundry waste sand recycling device, including a device tank body 1, a feeding port is arranged on the top of the device tank body 1, a crushing assembly and a horizontal filter screen plate 2 are arranged inside the device tank body 1, a plurality of groups of filter holes 3 are distributed on the filter screen plate 2, the inside of the tank body is divided into an upper crushing chamber and a lower feeding chamber by means of the filter screen plate 2, the crushing assembly is located in the crushing chamber, the crushing assembly crushes the foundry waste sand and filters the crushed foundry waste sand by means of the filter screen plate 2.
[0022] Since the used foundry sand has a too dense structure, it needs to be crushed to loosen it. At the same time, some metal debris may be mixed in the foundry sand. Therefore, after crushing, it needs to be put into the filtering device to filter out the metal debris. The whole process requires multiple sets of equipment and the whole process is relatively cumbersome.
[0023] Therefore, the foundry sand recycling equipment of the present invention comprises a crushing component and a filter screen plate 2. The clumped foundry sand is first crushed by the crushing component, and the crushed foundry sand is filtered once through the filter screen. Large-grained iron filings and sand blocks cannot pass through the filter holes 3. Since the large-grained sand blocks cannot pass through the filter holes 3, they will be further crushed by the crushing component until small-grained gravel is formed and passes through the filter holes 3. The iron filings and some large-grained sand blocks that are difficult to crush can be directly collected and centrally processed. The equipment of the present invention can realize the integration of crushing and filtering, save equipment expenses, simplify the process flow, and improve the efficiency of recycling foundry sand.
[0024] like Figure 1-3 and Figure 5As shown, the crushing assembly includes a motor 4, a turntable 5 and a crushing blade 6. The side wall of the driving end of the motor 4 is connected to one side of the turntable 5, and a connecting rod 7 perpendicular to the turntable 5 is fixed at the center of the other side of the turntable 5. The crushing blade 6 is in an L-shaped structure, one end of the crushing blade 6 is fixedly connected to the turntable 5, and the other end of the crushing blade 6 is fixedly connected to the connecting rod 7. The crushing blade 6 is provided with multiple groups and is distributed in a cage-like structure with the connecting rod 7 as the center. The crushing blade 6 is rotated in the horizontal direction with the help of the motor 4. Since the old casting sand is clumped, the surface of the sand clumping is relatively flat, and the traditional rolling wheel cannot crush it. Therefore, the utility model adopts a cage-shaped crushing blade 6, and the sand clumping is cut by the horizontal rotation of the crushing blade 6. The vertical rotation of the crushing blade 6 is similar to the rotation of an egg beater, and the surface of the sand clumping is continuously scraped by its vertical rotation. At the same time, the crushing blade 6 continuously pushes the sand clumping to move, and cooperates with the filter screen plate 2 to form a process similar to grinding, so that the dense sand clumping is gradually scraped thin, so that the sand clumping is finally crushed.
[0025] like Figure 1-3 and Figure 5 As shown, the turntable 5 is hinged to the driving end of the motor 4 and has the freedom to rotate around the connecting rod 7. The circumference of the turntable 5 is provided with spherical protrusions 8 arranged in a ring array. The path distance between adjacent spherical protrusions 8 is equal to the distance between adjacent filter holes 3. The turntable 5 rolls with the help of the step-by-step cooperation between the spherical protrusions 8 and the filter holes 3. The crushing blade 6 rotates in the vertical direction with the help of the turntable 5. In order to realize the rotation of the crushing blade 6 and the turntable 5 in the vertical direction, the circumference of the turntable 5 is provided with A circle of spherical protrusions 8. When the turntable 5 rotates horizontally with the help of the motor 4, the spherical protrusions 8 are engaged with the filter holes 3, and the filter holes 3 hinder the translation of the spherical protrusions 8. Therefore, the turntable 5 can only make an arc rotation along the surface of the spherical protrusions 8. In the process of the upper-level spherical protrusions 8 detaching from the upper-level filter holes 3, the lower-level spherical protrusions 8 will be embedded in the lower-level filter holes 3. This is repeated to enable the turntable 5 to achieve vertical rotation during the horizontal rotation, thereby driving the rotation of the crushing blade 6.
[0026] In addition, turntables 5 are provided at both ends of the crushing blade 6, and the two sets of turntables 5 can better drive the crushing blade 6 to rotate in the vertical direction.
[0027] like Figure 1-2 and Figure 5As shown, the crushing assembly also includes a scraper 9, which is connected to the driving end of the motor 4 and forms a horizontal rotation with the help of the motor 4. The lower surface of the scraper 9 is in close contact with the upper surface of the filter screen plate 2, and the crushing blade 6 is spaced 2-4mm from the upper surface of the filter screen plate 2. On the one hand, the scraper 9 can scrape the crushed old sand on the filter screen plate 2 into the filter hole 3, and at the same time scrape away some of the sand blocks stuck in the filter hole 3. On the other hand, when there are more sand masses in the crushing chamber, the crushing blade 6 and the scraper 9 can clamp the sand masses together, and the scraper 9 is used to provide a reverse force to the sand masses, so that the sand masses and the crushing blade 6 fit better, which is beneficial for the crushing blade 6 to scrape the surface of the sand masses and improve the crushing quality.
[0028] like Figure 1-2 As shown, in addition, the crushing blade 6 in the utility model is spaced 2-4 mm from the upper surface of the filter screen plate 2. When some smaller particles of sand are stuck in the filter holes 3, the crushing blade 6 and the filter screen plate 2 jointly apply a force in the opposite direction to the stuck position and break it off, thereby preventing the filter holes 3 from being blocked.
[0029] like Figure 1-2 As shown, a screen 10 and a blanking plate 11 are arranged in the blanking chamber, and the screen 10 and the blanking plate 11 are both arranged tilted, the screen 10 is located above the blanking plate 11, the bottom of the screen 10 is connected to a filter recovery tank 12, and the bottom of the blanking plate 11 is connected to a discharge storage tank 13. Small-sized metal debris may exist in the sand and gravel that have been filtered once, so a screen 10 is also arranged in the blanking chamber to perform secondary filtering on the sand and gravel that have been filtered once. Due to the presence of the motor 4, the entire device will generate a certain vibration, and the vibration of the device is used to make the inclined screen 10 The gravel gradually slides downward in a jumping manner. The diameter of the screen holes of the screen 10 is smaller than the diameter of the filter holes 3. Metal debris cannot pass through the screen holes, while larger-sized gravel will be shaken off during the jumping process to form smaller gravel, which passes through the screen 10 and slides along the blanking plate 11 to the discharge storage trough 13. The metal debris that cannot pass through the screen holes and the gravel that has not been shaken off fall into the filter recovery trough 12 for centralized treatment. Secondary filtration can be formed through the screen 10, thereby removing small-sized metal debris and larger-volume gravel contained in the old foundry sand, thereby improving the quality of the recovered old foundry sand.
[0030] like Figure 1-2 and Figure 4As shown, the filter mesh plate 2 is provided with a plurality of groups of filter holes 3 arranged in a ring array, and the filter holes 3 are in a trumpet-shaped structure. The small diameter of the filter holes 3 faces the crushing chamber, and the large diameter of the filter holes 3 faces the material-falling chamber. The filter holes 3 in the utility model are in a trumpet-mouth shape. When performing a single filtration, the sand and gravel that meet the single filtration size can easily pass through the filter holes 3, avoiding the sand and gravel that meet the size from being stuck in the filter holes 3.
Claims
1. A foundry waste sand recycling device, comprising a device tank (1), wherein the top of the device tank (1) is provided with a feed inlet, characterized in that: A crushing assembly and a horizontal filter screen (2) are arranged inside the tank body (1) of the equipment. A plurality of groups of filter holes (3) are distributed on the filter screen (2). The inside of the tank body (1) is divided into an upper crushing chamber and a lower material-dropping chamber by means of the filter screen (2). The crushing assembly is located in the crushing chamber. The crushing assembly crushes the old foundry sand and filters the crushed old foundry sand by means of the filter screen (2).
2. The foundry waste sand recycling equipment according to claim 1, characterized in that: The pulverizing assembly comprises a motor (4), a turntable (5) and a pulverizing blade (6); the side wall of the driving end of the motor (4) is connected to one side of the turntable (5); a connecting rod (7) perpendicular to the turntable (5) is fixed at the center of the other side of the turntable (5); the pulverizing blade (6) is in an L-shaped structure; one end of the pulverizing blade (6) is fixedly connected to the turntable (5); the other end of the pulverizing blade (6) is fixedly connected to the connecting rod (7); a plurality of groups of pulverizing blades (6) are arranged and distributed in a cage-like structure with the connecting rod (7) as the center; the pulverizing blade (6) rotates in a horizontal direction with the aid of the motor (4).
3. The foundry waste sand recycling equipment according to claim 2 is characterized in that: The turntable (5) is hinged to the driving end of the motor (4) and has the freedom to rotate around the connecting rod (7). The circumference of the turntable (5) is provided with spherical protrusions (8) arranged in a ring array. The path distance between adjacent spherical protrusions (8) is equal to the distance between adjacent filter holes (3). The turntable (5) rolls by virtue of the step-by-step cooperation between the spherical protrusions (8) and the filter holes (3). The crushing blades (6) rotate in the vertical direction by virtue of the turntable (5).
4. The foundry waste sand recycling equipment according to claim 2, characterized in that: The pulverizing assembly further comprises a scraper (9), the scraper (9) being connected to the driving end of the motor (4) and being rotated in the horizontal direction by means of the motor (4), the lower surface of the scraper (9) being in close contact with the upper surface of the filter screen plate (2), and the pulverizing blade (6) being spaced 2-4 mm from the upper surface of the filter screen plate (2).
5. The foundry waste sand recycling equipment according to claim 1, characterized in that: A screen (10) and a blanking plate (11) are arranged in the blanking chamber. The screen (10) and the blanking plate (11) are both arranged at an inclination. The screen (10) is located above the blanking plate (11). The bottom of the screen (10) is connected to a filtrate recovery trough (12). The bottom of the blanking plate (11) is connected to a discharge storage trough (13).
6. The foundry waste sand recycling equipment according to claim 1, characterized in that: The filter screen plate (2) is provided with a plurality of groups of filter holes (3) arranged in a ring-shaped array. The filter holes (3) are in a trumpet-shaped structure. The small diameter of the filter holes (3) faces the crushing chamber, and the large diameter of the filter holes (3) faces the material dropping chamber.