Grinding separation device for foundry sand recycling

Abstract

The utility model relates to foundry sand regeneration treatment technical field, and disclose a kind of foundry sand regeneration treatment's grinding separation device, including working tank.Through grinding separation mechanism, utilize the grinding box in grinding part, to be input grinding box, start motor one, motor one drives driving gear, driving gear drives driven gear meshing rotation, to make driving gear and driven gear drive grinding roller to grind, after grinding, fall into screen, then start motor two, motor two drives rotating rod, so that rotating rod drives cam, so that cam pushes screen, so that screen slides in the sliding slot inner side under the action of sliding block, to carry out up-down reciprocating vibration screening, after screening, small fall into collecting box one, on screen through drainage plate enter collecting box two and collect, to effectively remove the impurities on the surface of old sand and size separation by grinding and separation operation, so that the quality of regenerated sand reaches the standard of reusing.

Description

Technical Field

[0001] This utility model relates to the field of foundry sand regeneration technology, specifically a grinding and separation device for foundry sand regeneration. Background Technology

[0002] In the foundry industry, molding sand, specifically designed for casting processes, inevitably accumulates various impurities on its surface after multiple uses. These impurities primarily include binders, coatings, and metal oxides. Binders are added to enhance the strength and stability of the molding sand, coatings improve the surface finish of castings and prevent sand adhesion, while metal oxides are byproducts generated during the casting process when metal comes into contact with the molding sand. The accumulation of these impurities not only affects the performance of the molding sand but also increases the difficulty of subsequent processing. To achieve efficient recycling of molding sand, thereby effectively reducing production costs and minimizing negative environmental impacts, a systematic regeneration process for used sand is essential. Regeneration removes these impurities through physical or chemical methods, restoring the purity and performance of the molding sand, enabling it to be reused in casting production and achieving the dual goals of resource conservation and environmental protection.

[0003] Compared to existing technologies: In the foundry industry, molding sand is widely used as the basic material for forming the cavity of castings. However, after the casting process is completed, a large amount of used molding sand is difficult to reuse directly due to binder residues, impurities, and other reasons. If it is discarded directly, it will not only waste resources but also put pressure on the environment.

[0004] Therefore, a grinding and separation device for the regeneration treatment of foundry sand is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a grinding and separation device for the regeneration of foundry sand, which solves the technical problem that after the casting process is completed, a large amount of used molding sand is difficult to reuse directly due to binder residue, impurities, etc. If it is directly discarded, it will not only waste resources but also bring environmental pressure. The device achieves the purpose of grinding and separation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding and separation device for the regeneration treatment of foundry sand, comprising a working box, a discharge chute on the left side of the working box, a sliding groove on the inner side of the working box, a controller on the front side of the working box, a grinding and separation mechanism on the top surface of the working box, an air separation mechanism on the right side of the working box, a collection box one on the inner side of the working box, and a collection box two on the left side of the working box; The grinding and separating mechanism includes a grinding section and a separating section; The separation section is located below the grinding section; The air separation mechanism includes an air separation section and a collection section; The collection section is located at the bottom of the air separator.

[0007] Preferably, the grinding section includes a grinding box, which is connected to the working box. An L-shaped fixing plate is provided on the left side of the grinding box and is fixedly connected to the grinding box. A motor is provided on the inner side of the L-shaped fixing plate and is fixedly connected to the L-shaped fixing plate. A drive gear is provided on the output end face of the motor and is fixedly connected to the motor.

[0008] Preferably, a driven gear is provided on the outer end face of the driving gear, and the driven gear meshes with the driving gear. A gear post is fixedly provided on the right end face of both the driven gear and the driving gear. The gear post extends through to the inner side of the grinding box and is rotatably connected to the inner wall of the grinding box. A grinding roller is provided on the right end face of the gear post, and the grinding roller is fixedly connected to the gear post. The right end face of the grinding roller is rotatably connected to the inner side of the grinding box through a bearing seat.

[0009] Preferably, the separation section includes a U-shaped plate, which is fixedly connected to the rear side of the working box. A second motor is provided on the inner side of the U-shaped plate and is fixedly connected to the U-shaped plate. A rotating rod is provided on the output end face of the second motor and is fixedly connected to the second motor. The rotating rod extends through to the inner side of the working box. The surface of the rotating rod is rotatably connected to the inner wall of the working box through a second bearing seat. The front end face of the rotating rod is rotatably connected to the inner side of the working box through a third bearing seat. A cam is sleeved on the surface of the rotating rod and is fixedly connected to the rotating rod.

[0010] Preferably, a screen is provided above the cam, and sliders are provided on the outer side of the screen. The sliders are fixedly connected to the screen and slidably connected to the slide groove. Springs are provided on the outer side of the sliders. The outer ends of the springs are fixedly connected to the inner side of the slide groove, and the inner ends of the springs are fixedly connected to the outer side of the sliders. A guide plate is provided on the left side of the springs and is fixedly connected to the working box. Through the grinding and separation parts in the grinding and separation mechanism, the grinding, separation and recycling effect is achieved.

[0011] Preferably, the air separator includes an extraction pipe that extends through to the inner side of the working box. A fan is connected to the right end of the extraction pipe, and a fixing plate is provided on the bottom end of the fan. The fixing plate is fixedly connected to the right side of the working box and to the fan.

[0012] Preferably, the collection section includes a conveying pipe connected to a fan, and a storage box is provided at the bottom end of the conveying pipe. A drawer is provided on the inner side of the storage box, and the drawer is slidably connected to the storage box. Through the air separation section and the collection section in the air separation mechanism, the sorting and collection effect is achieved.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this grinding and separation device for the regeneration treatment of foundry sand, (1) Through the grinding and separation mechanism, the grinding box in the grinding section is used to put the sand into the grinding box. Motor 1 is started, and motor 1 drives the drive gear, which drives the driven gear to mesh and rotate. This causes the drive gear and driven gear to drive the grinding roller to grind the sand. The ground sand falls into the screen. Then motor 2 is started, and motor 2 drives the rotating rod, which drives the cam. The cam pushes the screen, and the screen slides on the inner side of the slide groove under the action of the slider, thus performing up-and-down reciprocating vibration screening. The fine sand falls into the collection box 1 after screening, and the sand on the screen enters the collection box 2 through the guide plate for collection. Thus, through the grinding and separation operation, impurities on the surface of the old sand are effectively removed and the sand is separated by size, so that the quality of the recycled sand meets the standard for reuse.

[0014] (2) Using the air separation mechanism, the blower in the air separation section is started while screening. The blower sucks up the light impurities screened on the inner wall of the working box through the extraction pipe. The sucked-up impurities enter the storage box through the conveying pipe and reach the drawer. The light impurities in the recycled sand, such as dust and fine binder particles, are further separated by the action of wind. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a three-dimensional structural schematic diagram of the present utility model; Figure 3 This is a three-dimensional structural schematic diagram of the present utility model; Figure 4 This is a three-dimensional structural schematic diagram of the present utility model; Figure 5 This is a three-dimensional structural schematic diagram of the present utility model.

[0016] In the diagram: 1. Working box, 2. Controller, 3. Grinding and separating mechanism, 31. Grinding section, 32. Separation section, 311. Grinding box, 312. L-shaped fixing plate, 313. Motor 1, 314. Drive gear, 315. Driven gear, 316. Grinding roller, 321. U-shaped plate, 322. Motor 2, 323. Rotating rod, 324. Cam, 325. Screen, 326. Slider, 327. Spring, 328. Diverter plate, 4. Air separation mechanism, 41. Air separation section, 42. Collection section, 411. Extraction pipe, 412. Fan, 413. Fixing plate, 421. Conveying pipe, 422. Storage box, 423. Drawer, 5. Collection box 1, 6. Collection box 2. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: However, after the casting process is completed, a large amount of used molding sand is difficult to reuse directly due to binder residue and impurities. Direct disposal would not only waste resources but also create environmental problems. Please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a grinding and separation device for recycling foundry sand, including a working box 1, a discharge chute on the left side of the working box 1, a sliding groove on the inner side of the working box 1, a controller 2 on the front side of the working box 1, a grinding and separation mechanism 3 on the top surface of the working box 1, an air separation mechanism 4 on the right side of the working box 1, a collection box 5 on the inner side of the working box 1, and a collection box 6 on the left side of the working box 1; The grinding and separating mechanism 3 includes a grinding section 31 and a separating section 32; The separation section 32 is located below the grinding section 31; The air separation mechanism 4 includes an air separation section 41 and a collection section 42; The collecting section 42 is located on the bottom surface of the air separator 41.

[0019] Preferably, the grinding section 31 includes a grinding box 311, which is connected to the working box 1. An L-shaped fixing plate 312 is provided on the left side of the grinding box 311, and the L-shaped fixing plate 312 is fixedly connected to the grinding box 311. A motor 313 is provided on the inner side of the L-shaped fixing plate 312, and the motor 313 is fixedly connected to the L-shaped fixing plate 312. A drive gear 314 is provided on the output end face of the motor 313, and the drive gear 314 is fixedly connected to the motor 313.

[0020] Preferably, a driven gear 315 is provided on the outer end face of the driving gear 314, and the driven gear 315 is meshed with the driving gear 314. A gear post is fixedly provided on the right end face of both the driven gear 315 and the driving gear 314. The gear post extends through to the inner side of the grinding box 311 and is rotatably connected to the inner wall of the grinding box 311. A grinding roller 316 is provided on the right end face of the gear post, and the grinding roller 316 is fixedly connected to the gear post. The right end face of the grinding roller 316 is rotatably connected to the inner side of the grinding box 311 through a bearing seat.

[0021] Preferably, the separation section 32 includes a U-shaped plate 321, which is fixedly connected to the rear side of the working box 1. A second motor 322 is provided on the inner side of the U-shaped plate 321, and the second motor 322 is fixedly connected to the U-shaped plate 321. A rotating rod 323 is provided on the output end face of the second motor 322, and the rotating rod 323 is fixedly connected to the second motor 322. The rotating rod 323 extends through to the inner side of the working box 1. The surface of the rotating rod 323 is rotatably connected to the inner wall of the working box 1 through a second bearing seat. The front end face of the rotating rod 323 is rotatably connected to the inner side of the working box 1 through a third bearing seat. A cam 324 is sleeved on the surface of the rotating rod 323, and the cam 324 is fixedly connected to the rotating rod 323.

[0022] Preferably, a screen 325 is provided above the cam 324, and a slider 326 is provided on the outer side of the screen 325. The slider 326 is fixedly connected to the screen 325 and slidably connected to the slide groove. A spring 327 is provided on the outer side of the slider 326. The outer end of the spring 327 is fixedly connected to the inner side of the slide groove, and the inner end of the spring 327 is fixedly connected to the outer side of the slider 326. A guide plate 328 is provided on the left side of the spring 327 and is fixedly connected to the working box 1.

[0023] Furthermore, in this embodiment, the grinding and separating mechanism 3 utilizes the grinding box 311 in the grinding section 31 to feed the old sand to be processed into the grinding box 311. The motor 313 is then started, driving the drive gear 314 to rotate. The drive gear 314 meshes with the driven gear 315, thereby driving the driven gear 315 to rotate. The drive gear 314 and the driven gear 315 respectively drive the connected grinding rollers 316 to rotate. The grinding rollers 316 grind the old sand fed into the grinding box 311, thereby removing impurities from the surface of the old sand. After grinding... The old sand falls onto the screen 325. The motor 322 is started and begins to work. The motor 322 drives the rotating rod 323 to rotate, and the rotating rod 323 drives the cam 324 to rotate. During the rotation, the cam 324 pushes the screen 325. Under the action of the slider 326, the screen 325 vibrates up and down along the inner side of the chute, thereby realizing the screening operation of the old sand. After screening, the fine recycled sand that meets the particle size requirements falls into the collection box 5 for collection. The larger particles of old sand remaining on the screen 325 enter the collection box 6 through the guide plate 328 for collection. Furthermore, in this embodiment, the grinding and separation mechanism 3 utilizes the grinding box 311 in the grinding section 31 to feed the sand into the grinding box 311. The motor 1 313 is started, which drives the drive gear 314, which in turn drives the driven gear 315 to mesh and rotate. This causes the drive gear 314 and the driven gear 315 to drive the grinding roller 316 to grind the sand. The ground sand falls into the screen 325. Then, the motor 2 322 is started, which drives the rotating rod 323, which in turn drives the cam 324. The cam 324 pushes the screen 325, causing the screen 325 to slide on the inner side of the chute under the action of the slider 326, thus performing up-and-down reciprocating vibration screening. The fine sand falls into the collection box 1 5, while the sand on the screen 325 is collected in the collection box 2 6 through the guide plate 328. Thus, through the grinding and separation operation, impurities on the surface of the old sand are effectively removed and the sand is separated by size, so that the quality of the recycled sand meets the standard for reuse. Example 2: Please see Figure 1 , Figure 2 , Figure 5 Furthermore, based on Embodiment 1, the preferred embodiment is that the air separator 41 includes an extraction pipe 411, which extends through to the inner side of the working box 1. A fan 412 is connected to the right end of the extraction pipe 411, and a fixing plate 413 is provided on the bottom end of the fan 412. The fixing plate 413 is fixedly connected to the right side of the working box 1 and to the fan 412.

[0024] Preferably, the collection unit 42 includes a conveying pipe 421, which is connected to a fan 412. A storage box 422 is provided at the bottom end of the conveying pipe 421, and a drawer 423 is provided on the inner side of the storage box 422. The drawer 423 is slidably connected to the storage box 422.

[0025] Furthermore, in this embodiment, the air separation mechanism 4 utilizes the fan 412 in the air separation section 41. Simultaneously with the screening operation, the fan 412 is activated and begins operation. The fan 412, through the extraction pipe 411, sucks up the light impurities generated during the screening process on the inner wall of the working chamber 1. At this time, under the negative pressure generated by the fan, light impurities such as dust and fine binder particles stirred up during screening within the working chamber are sucked into the extraction pipe 411. The sucked-up light impurities are then transported through the conveying pipe 421. Light impurities enter the storage tank 422 through the conveying pipe 421 and eventually reach the drawer 423 inside the storage tank 422; Furthermore, in this embodiment, the air separation mechanism 4 utilizes the fan 412 in the air separation section 41. When screening is performed, the fan 412 is started. The fan 412 sucks up the light impurities screened on the inner wall of the working box 1 through the extraction pipe 411. The sucked-up impurities enter the storage box 422 through the conveying pipe 421 and reach the drawer 423. The light impurities in the recycled sand, such as dust and fine binder particles, are further separated by the action of wind.

[0026] In use, the old sand to be processed is fed into the grinding box 311 in the grinding section 31 via the grinding and separating mechanism 3. The motor 313 is then started, driving the drive gear 314 to rotate. The drive gear 314 meshes with the driven gear 315, which in turn drives the driven gear 315 to rotate. The drive gear 314 and driven gear 315 respectively drive the connected grinding rollers 316 to rotate. The grinding rollers 316 grind the old sand in the grinding box 311, thereby removing impurities from the surface of the old sand. The ground old sand falls onto the screen 325. Motor 322 is started and begins to work. Motor 322 drives rotating rod 323 to rotate, which in turn drives cam 324 to rotate. During the rotation, cam 324 pushes screen 325. Under the action of slider 326, screen 325 vibrates up and down along the inner side of the chute, thereby realizing the screening operation of old sand. At the same time, through the air separation mechanism 4, the blower 412 in the air separation section 41 is started to run while the screening operation is being carried out. The blower 412 sucks up the light impurities generated in the inner wall of the working box 1 during the screening process through the extraction pipe 411. At this time, under the negative pressure generated by the fan, light impurities such as dust and fine binder particles raised by screening in the working box will be sucked in by the extraction pipe 411. The light impurities after being sucked in will be transported through the conveying pipe 421. After screening, the fine recycled sand that meets the particle size requirements will fall into the collection box 5 for collection. The larger particles of old sand remaining on the screen 325 will enter the collection box 6 for collection through the guide plate 328.

[0027] It should be noted that the technology used in the 412 fan is already widely disseminated in the industry as publicly available technology. Given the large number of 412 fan models and their varying specifications, it is difficult to elaborate on the specific details of each model here. Furthermore, the 325 sieve is made of stainless steel. Features: Similar to stainless steel springs, 325 stainless steel wire mesh possesses excellent corrosion resistance, enabling long-term use in various harsh environments without rusting. Furthermore, 325 stainless steel wire mesh boasts high strength and toughness, resisting deformation and breakage, and can withstand significant material impacts and friction. Spring 327 is made of alloy material Characteristics: Alloy spring 327 is made by adding one or more alloying elements, such as chromium, silicon, manganese, and vanadium, to carbon steel to improve the steel's strength, hardness, elasticity, and wear resistance. This type of spring, 327, has a high fatigue limit and is less prone to fatigue fracture under long-term alternating loads.

[0028] 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 the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding and separating device for regenerating foundry sand, comprising a working box (1), characterized in that: The working box (1) has a discharge chute on the left side, a sliding groove on the inner side of the working box (1), a controller (2) on the front side of the working box (1), a grinding and separation mechanism (3) on the top surface of the working box (1), an air separation mechanism (4) on the right side of the working box (1), a collection box one (5) on the inner side of the working box (1), and a collection box two (6) on the left side of the working box (1). The grinding and separating mechanism (3) includes a grinding section (31) and a separating section (32); The separation section (32) is located below the grinding section (31); The air separation mechanism (4) includes an air separation section (41) and a collection section (42). The collecting section (42) is located on the bottom surface of the air separator (41).

2. The grinding and separating device for regenerating foundry sand according to claim 1, characterized in that: The grinding section (31) includes a grinding box (311), which is connected to the working box (1). An L-shaped fixing plate (312) is provided on the left side of the grinding box (311), and the L-shaped fixing plate (312) is fixedly connected to the grinding box (311). A motor (313) is provided on the inner side of the L-shaped fixing plate (312), and the motor (313) is fixedly connected to the L-shaped fixing plate (312). A drive gear (314) is provided on the output end face of the motor (313), and the drive gear (314) is fixedly connected to the motor (313).

3. The grinding and separating device for regenerating foundry sand according to claim 2, characterized in that: A driven gear (315) is provided on the outer end face of the driving gear (314). The driven gear (315) meshes with the driving gear (314). A gear post is fixedly provided on the right end face of both the driven gear (315) and the driving gear (314). The gear post extends through to the inner side of the grinding box (311). The gear post is rotatably connected to the inner wall of the grinding box (311). A grinding roller (316) is provided on the right end face of the gear post. The grinding roller (316) is fixedly connected to the gear post. The right end face of the grinding roller (316) is rotatably connected to the inner side of the grinding box (311) through a bearing seat.

4. The grinding and separating device for regenerating foundry sand according to claim 3, characterized in that: The separation section (32) includes a U-shaped plate (321), which is fixedly connected to the rear side of the work box (1). A motor (322) is provided on the inner side of the U-shaped plate (321), which is fixedly connected to the U-shaped plate (321). A rotating rod (323) is provided on the output end face of the motor (322), which is fixedly connected to the motor (322). The rotating rod (323) extends through to the inner side of the work box (1). The surface of the rotating rod (323) is rotatably connected to the inner wall of the work box (1) through a bearing seat (2). The front end face of the rotating rod (323) is rotatably connected to the inner side of the work box (1) through a bearing seat (3). A cam (324) is sleeved on the surface of the rotating rod (323), which is fixedly connected to the rotating rod (323).

5. The grinding and separating device for regenerating foundry sand according to claim 4, characterized in that: A screen (325) is provided above the cam (324). A slider (326) is provided on the outer side of the screen (325). The slider (326) is fixedly connected to the screen (325). The slider (326) is slidably connected to the slide groove. A spring (327) is provided on the outer side of the slider (326). The outer end of the spring (327) is fixedly connected to the inner side of the slide groove. The inner end of the spring (327) is fixedly connected to the outer side of the slider (326). A flow guide plate (328) is provided on the left side of the spring (327). The flow guide plate (328) is fixedly connected to the working box (1).

6. The grinding and separating device for regenerating foundry sand according to claim 1, characterized in that: The air separation unit (41) includes an extraction pipe (411) that extends through to the inner side of the working box (1). A fan (412) is connected to the right end of the extraction pipe (411). A fixing plate (413) is provided on the bottom end of the fan (412). The fixing plate (413) is fixedly connected to the right side of the working box (1) and the fan (412).

7. The grinding and separating device for regenerating foundry sand according to claim 6, characterized in that: The collection section (42) includes a conveying pipe (421), which is connected to a fan (412). A storage box (422) is provided on the bottom end of the conveying pipe (421), and a drawer (423) is provided on the inner side of the storage box (422). The drawer (423) is slidably connected to the storage box (422).

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