A large-volume waste sand refinement processing device

Abstract

The present invention relates to the field of waste sand treatment, and particularly to a large-volume waste sand refinement treatment device, including an upright frame, a refinement bin, a collection bin, a U-shaped plate, a material distribution plate and a material distribution air cylinder; the present invention solves the problems that in the process of decomposing and refining large-volume waste sand lumps, the traditional decomposition and crushing treatment method is difficult to reasonably utilize the gravity of the waste sand lumps, difficult to embed into the inside of the waste sand lumps to cause them to disintegrate and fall off, and reduces the disintegration rate of the waste sand lumps; it solves the problems that the traditional waste sand decomposition treatment method is difficult to apply multi-station and multi-angle piercing and shearing operations to the accumulated waste sand lumps, difficult to reduce the dust and suspended substances in the surrounding space during the waste sand refinement treatment process, and increases the waste sand decomposition and refinement treatment time and the loss degree during the treatment process.

Description

Technical Field

[0001] The present invention relates to the field of waste sand treatment, and more particularly to a large-volume waste sand refinement treatment device. Background Art

[0002] Sand casting refers to a casting method in which castings are produced in sand molds. Castings of steel, iron, and most non-ferrous alloys can be obtained by sand casting. Since the molding materials used in sand casting are inexpensive and easily available, and the manufacture of the mold is simple, it can adapt to single-piece production, batch production, and mass production of castings. For a long time, it has been the basic process in casting production;

[0003] The basic raw materials for manufacturing sand molds are foundry sand and sand mold binders. After sand casting, the foundry sand needs to be stripped from the surface of the casting, and the stripped foundry sand is waste sand. By treating the waste sand through crushing, screening, incineration, cooling, etc., the waste sand can be turned into "new sand" that can be reused. The regenerated 'new sand' has low ignition loss, low gas evolution, and a lower expansion coefficient, which can improve the qualified rate of castings and reduce the production cost of the foundry. At the same time, the reuse of waste sand can greatly reduce the consumption of new sand and save logistics costs. In addition, recycling waste sand can also reduce the development of silica sand resources, greatly reduce the discharge of casting waste sand, and reduce the pollution of soil, atmosphere, and water environment. Sand casting is often used for the processing and manufacturing of large and complex-shaped parts, and the required sand molds are relatively large. After sand casting, the stripped waste sand often has a large volume and weight, making it difficult to directly recycle it. Moreover, large-volume waste sand lumps also have a negative impact on subsequent transportation, crushing, and screening. Therefore, it is necessary to decompose and refine large-volume waste sand lumps to improve the efficiency of subsequent crushing, screening, and transportation operations. However, in the process of decomposing and refining large-volume waste sand lumps, the following problems often exist:

[0004] (1) For large-volume waste sand lumps, their own density and volume are relatively large. Traditional decomposition and crushing methods are difficult to reasonably utilize the gravity of the waste sand lumps, and it is difficult to embed inside the waste sand lumps to cause them to disintegrate and fall off, reducing the disintegration rate of the waste sand lumps.

[0005] (2) Traditional waste sand decomposition methods are difficult to apply multi-station and multi-angle piercing and shearing operations to the accumulated waste sand lumps, and it is difficult to reduce the dust and suspended matter in the surrounding space during the waste sand refinement process, increasing the waste sand decomposition and refinement time and the loss degree during the process. Summary of the Invention

[0006] The present invention provides a large-volume waste sand refinement processing device to solve the technical problems that in the process of decomposing and refining large-volume waste sand, it is difficult to apply multi-station and multi-angle piercing and shearing operations to the accumulated large-volume waste sand masses, increasing the time for decomposing and refining large-volume waste sand and the loss degree during the processing process.

[0007] The present invention adopts the following technical solutions: A large-volume waste sand refinement processing device includes a vertical frame, a refinement bin, a collection bin, a C-shaped plate, a distribution plate, and a distribution cylinder. The two ends of the refinement bin are symmetrically installed with vertical frames. The lower end surface of the middle part of the refinement bin is detachably installed with a collection bin. A collection port is opened at the bottom of the refinement bin, and the refinement bin is communicated with the collection bin through the collection port. The distribution plate is installed inside the refinement bin in a sliding fit manner. One end of the inner side of the refinement bin is fixedly installed with a distribution cylinder, and the output shaft of the distribution cylinder is connected to the distribution plate. The upper end of the refinement bin is fixedly installed with a downward-opening C-shaped plate. Through-type notches corresponding to each other are symmetrically opened in the middle of the upper end of the C-shaped plate and the middle of the upper end of the refinement bin. A dividing frame is installed inside the C-shaped plate. A filling frame is movably installed at the upper end of the C-shaped plate. Both the dividing frame and the filling frame are installed with pulleys, and the pulleys on the dividing frame are connected by a belt to the pulleys on the filling frame;

[0008] The inner side of the refinement bin is symmetrically installed with guide rails. The central axis of the guide rails is parallel to the side line of the distribution plate. The side wall of the distribution plate is connected to the guide rails in a sliding fit manner. A steering gear is installed in the middle of the guide rails in a rotational fit manner. The distribution plates are located on the left and right sides of the guide rails respectively, and the side walls of the distribution plates are provided with meshing teeth meshing with the steering gear. Stockpiling grooves are evenly opened in the middle of the plate surface of the distribution plates. Magnetic plates are fixedly installed in the stockpiling grooves. The upper end of the refinement bin is fixedly installed with a closed box. The closed box is located on one side of the collection port. A plurality of sets of puncturing teeth are installed inside the closed box in a sliding fit manner. The upper ends of the puncturing teeth are connected to the closed box through return springs, and the lower ends of the puncturing teeth are adsorbed to the magnetic plates;

[0009] Preferably, the distribution plates are all horizontally installed at the inner bottom of the refinement bin. The distribution plates and the guide rails are arranged at intervals, and the output shaft of the distribution cylinder is connected to the distribution plate located in the middle of the refinement bin.

[0010] Preferably, the plurality of sets of puncturing teeth are arranged in a staggered manner with long and short intervals. A gap is reserved between the lower ends of the puncturing teeth and the upper end surface of the distribution plate. The magnetic plates are bent and arranged in the stockpiling grooves, and the upper end surface height of the magnetic plates is lower than the upper end surface height of the distribution plates.

[0011] Preferably, the packing rack includes a packing plate, a packing spring, a puncturing rod, a connecting plate, a connecting spring, a packing rotating shaft, and a packing motor. At the upper middle part of the refining bin, packing plates are symmetrically installed through a sliding fit manner. The packing plates are respectively located on both sides of the through notch at the upper end of the refining bin. At the lower end of the packing plate, multiple groups of puncturing rods are installed through a sliding fit manner. The multiple groups of puncturing rods are respectively located above multiple dividing plates. At one end of the puncturing rods in the same group, a connecting plate is commonly installed. At both ends of the connecting plate, connecting springs are connected to the packing plate respectively. Inside the C-shaped plate, a packing rotating shaft is installed through a bearing. The packing rotating shaft is close to the connecting plate. On the side wall of the C-shaped plate, a packing motor is fixedly installed through a motor base. And the output shaft of the packing motor is connected to one end of the packing rotating shaft through a coupling.

[0012] Preferably, a roller is installed at the middle part of the connecting plate through a rotating fit manner. On the packing rotating shaft, multiple fixing rings are fixedly installed. On the ring surface of the fixing ring, extension plates are evenly installed along the tangent direction. The extension plates abut against the roller. And on the side wall of the extension plate, balls are evenly installed through a rotating fit manner.

[0013] Preferably, at the middle part of the packing plate, a V-shaped fold angle with an acute angle is provided. The lower end at the fold angle position of the packing plate is parallel to the dividing plate. The puncturing rods are all installed at the fold angle position of the packing plate through a sliding fit manner. The included angle between the central axis of the puncturing rod and the upper end surface of the dividing plate is an acute angle. Grooves are evenly opened at the end of the puncturing rod.

[0014] Preferably, the dividing rack includes kidney-shaped grooves, baffle plates, guiding shafts, steel cables, tensioning grooves, tensioning plates, and tension springs. At the middle side wall of the C-shaped plate, two groups of kidney-shaped grooves are opened. Between the kidney-shaped grooves in the same group, a baffle plate is commonly installed. And the baffle plates are respectively located on both sides of the through notch of the C-shaped plate. At both ends of the inner wall of the C-shaped plate, tensioning grooves are installed. Inside the tensioning grooves, tensioning plates are installed through a sliding fit manner. The tensioning plates are all connected to the side wall of the C-shaped plate through tension springs. Between the tensioning plates at both ends of the C-shaped plate, multiple steel cables are commonly installed. And the position heights of the steel cables are all higher than the packing plate. At the middle part of the baffle plate, multiple guiding shafts are evenly installed. The guiding shafts correspond to the steel cables one by one and the steel cables slide through the guiding shafts.

[0015] Preferably, a cross bar is commonly installed in the middle of multiple steel cables. A telescopic rod is fixedly installed on the side wall of the C-shaped plate. A compression spring is arranged between the telescopic end and the fixed end of the telescopic rod. A horizontal frame is fixedly installed at the end of the telescopic end of the telescopic rod. A U-shaped ring is fixedly installed at one end of the horizontal frame. The U-shaped ring opens downward and the inner wall of the U-shaped ring abuts against the side wall of the cross bar. A downward pulling frame is fixedly installed at the other end of the horizontal frame. A knocking shaft is installed on the side wall of the refining bin through a bearing. A knocking rod is fixedly installed in the middle of the knocking shaft. The knocking rod slides and abuts against the side wall of the downward pulling frame. Belt pulleys are fixedly installed at the ends of the knocking shaft and the packing rotating shaft respectively, and the belt pulley at the end of the knocking shaft is connected with the belt pulley at the end of the packing rotating shaft through a belt drive.

[0016] Preferably, the U-shaped ring is made of a magnetic material, and the U-shaped ring and the cross bar are mutually adsorbed.

[0017] Preferably, convex blocks are uniformly welded on the outer wall of the steel cable along its axial direction, and the convex blocks are located between the cross bar and the guide shaft.

[0018] The beneficial effects of the present invention:

[0019] (1) For the large-volume waste sand refining treatment equipment of the present invention, by reasonably utilizing the downward impact and vibration effect when the large-volume waste sand mass drops, the steel cable can be stretched adaptively according to the gravity change during the accumulation process of the upper-layer waste sand, and the contact area and embedding depth between the steel cable and the surface of the large-volume waste sand can be increased, improving the linear cutting effect and disintegration and shedding rate of the steel cable on the waste sand. At the same time, the energy consumption required during the waste sand decomposition process can be reduced. The convex blocks arranged on the steel cable can increase the surface cracks of the waste sand block during the embedding and sliding process, accelerating the disintegration rate of the waste sand mass. Through the linear cutting and auxiliary support effects of the steel cable on the bottom layer of the waste sand mass, while accelerating the decomposition and crushing of the waste sand mass, the volume of the waste sand dropping downward can be controlled.

[0020] (2) For the large-volume waste sand refining treatment equipment of the present invention, through the intermittent cooperation of the extension plate and the connecting plate, the puncture rod can continuously reciprocate and penetrate and crush from the bottom layer of the waste sand mass. Through the vibration effect when the ball on the side wall of the extension plate contacts the roller, the puncture rod can also vibrate synchronously during the process of penetrating the waste sand mass block. The grooves arranged on the side wall of the puncture rod can increase the surface roughness of the contact surface between the puncture rod and the waste sand mass, improving the disintegration and crushing efficiency of the large-volume waste sand mass. Through the overall movement of the packing plate and the connecting plate, the puncture rod can horizontally move transversely in the horizontal direction synchronously when penetrating the waste sand mass, scraping the waste sand particles accumulated in the material dividing plate while improving the decomposition rate of the waste sand mass. By operating in the bottom layer, the generation of dust and suspended matter in the surrounding space can also be reduced, reducing losses.

[0021] (3) The large-volume waste sand refinement processing equipment described in the present invention can make the accumulated waste sand masses bear the shear force in the horizontal direction and be gradually decomposed and broken by the synchronous sliding of multiple distribution plates in opposite directions. The poking teeth arranged in a long-and-short staggered manner can adapt to the concave and convex changes on the upper layer of the waste sand, and the protruding waste sand particles that do not meet the volume requirements can be crushed by the multi-station interspersed method. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a large-volume waste sand refinement processing equipment provided by the present invention;

[0024] Figure 2 For the present invention Figure 1 Top view schematic diagram;

[0025] Figure 3 For the present invention Figure 2 Cross-sectional schematic diagram in the A-A direction of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged schematic diagram at position B of the present invention;

[0027] Figure 5 For the present invention Figure 3 Enlarged schematic diagram at position C of the present invention;

[0028] Figure 6 Partial cross-sectional schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 Enlarged schematic diagram at position D of the present invention;

[0030] Figure 8 Partial three-dimensional structure cross-sectional schematic diagram of the dividing frame and the filling frame of the present invention;

[0031] Figure 9 For the present invention Figure 8 Enlarged schematic diagram at position E of the present invention;

[0032] Figure 10 For the present invention Figure 8 Enlarged schematic diagram at position F of the present invention;

[0033] Figure 11Schematic cross-sectional view of the partial three-dimensional structure of the filler rack and the material distribution plate of the present invention;

[0034] Figure 12 For the present invention Figure 11 Enlarged view at point G;

[0035] Figure 13 For the present invention Figure 11 Enlarged view at point H;

[0036] Figure 14 For the present invention Figure 11 Enlarged view at point K;

[0037] In the figure: 1, vertical frame; 2, refinement bin; 3, collection bin; 4, C-shaped plate; 5, material distribution plate; 6, material distribution cylinder; 7, dividing frame; 8, filler rack; 9, pulley; 10, belt; 20, collection port; 21, guide rail; 211, steering gear; 51, stacking groove; 511, magnetic plate; 22, closed box; 221, stabbing tooth; 222, return spring; 81, filler plate; 82, filler spring; 83, piercing rod; 84, connecting plate; 85, connecting spring; 86, filler rotating shaft; 87, filler motor; 841, roller; 861, extension plate; 862, ball; 831, groove; 71, waist-shaped groove; 72, baffle; 73, guide shaft; 74, steel cable; 75, tensioning groove; 76, tensioning plate; 77, tension spring; 741, cross bar; 41, telescopic rod; 411, horizontal frame; 412, U-shaped ring; 413, lower pull frame; 23, knocking shaft; 231, knocking rod; 742, convex block. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] An embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 6 and Figure 7, A large-volume waste sand refinement processing device, which includes a vertical frame 1, a refinement bin 2, a collection bin 3, a U-shaped plate 4, a distribution plate 5 and a distribution cylinder 6. The vertical frames 1 are symmetrically installed at both ends of the refinement bin 2. The lower end surface of the middle part of the refinement bin 2 is detachably installed with the collection bin 3. A collection port 20 is opened at the bottom of the refinement bin 2, and the refinement bin 2 is communicated with the collection bin 3 through the collection port 20. The distribution plate 5 is installed inside the refinement bin 2 in a sliding fit manner. One end of the inner side of the refinement bin 2 is fixedly installed with the distribution cylinder 6, and the output shaft of the distribution cylinder 6 is connected to the distribution plate 5. The upper end of the refinement bin 2 is fixedly installed with a U-shaped plate 4 with an opening downward. Through holes corresponding to each other are symmetrically opened in the middle of the upper end of the U-shaped plate 4 and the middle of the upper end of the refinement bin 2. A dividing frame 7 is installed inside the U-shaped plate 4. A filling frame 8 is movably installed at the upper end of the U-shaped plate 4. Pulley 9s are installed on both the dividing frame 7 and the filling frame 8, and the pulley 9 on the dividing frame 7 is driven by a belt 10 to be connected with the pulley 9 on the filling frame 8.

[0040] During specific operation, start the distribution cylinder 6 to perform intermittent reciprocating work. Drive the distribution plate 5 to perform reciprocating linear motion inside the refinement bin 2 through the output shaft of the distribution cylinder 6. Then, load the large-volume waste sand to be refined and crushed from the opening part at the upper end of the U-shaped plate 4 by workers or existing conveying equipment. Subsequently, the large-volume waste sand enters the inside of the U-shaped plate 4 under the action of its own gravity, and sequentially passes through the dividing frame 7 and the filling frame 8. Then, the waste sand accumulates in the middle of the refinement bin 2. Subsequently, under the reciprocating handling action of the distribution plate 5, part of the waste sand accumulated at the bottom moves synchronously with the distribution plate 5. Through the shearing action during the horizontal movement of the distribution plate 5, continuous multi-layer peeling operations can be performed on the large-volume waste sand, and finally the refined waste sand particles are transported to the position of the collection port 20, so that the waste sand falls from the collection port 20 into the collection bin 3 for stacking and collection. Then, the refined and crushed waste sand is transported and stored by workers or existing conveying equipment.

[0041] As an implementation manner of the present invention, such as Figure 3 , Figure 4 , Figure 8 , Figure 9 and Figure 10As shown in the figure, the partition rack 7 includes waist-shaped slots 71, baffle plates 72, guide shafts 73, steel cables 74, tension slots 75, tension plates 76 and tension springs 77. Two groups of waist-shaped slots 71 are provided on the middle side walls of the U-shaped plate 4. A baffle plate 72 is installed between the waist-shaped slots 71 in the same group, and the baffle plates 72 are respectively located on both sides of the through slot of the U-shaped plate 4. Tension slots 75 are installed on the inner walls at both ends of the U-shaped plate 4. Tension plates 76 are installed in the tension slots 75 in a sliding fit manner. The tension plates 76 are connected to the side walls of the U-shaped plate 4 through tension springs 77. A plurality of steel cables 74 are installed between the tension plates 76 at both ends of the U-shaped plate 4, and the position heights of the steel cables 74 are all higher than the filling plate 81. A plurality of guide shafts 73 are evenly installed in the middle of the baffle plate 72. The guide shafts 73 correspond to the steel cables 74 one by one, and the steel cables 74 slide through the guide shafts 73.

[0042] During specific operation, when the large-volume waste sand is initially loaded into the inner side of the U-shaped plate 4, the tension plates 76 are always at the end positions of the tension slots 75 under the tension of the tension springs 77. The steel cables 74 connected between the two tension plates 76 are in a horizontally taut state under the pulling action of the tension plates 76. After the large-volume waste sand enters the inner side of the U-shaped plate 4, through the bottom support action of the steel cables 74, part of the waste sand can be blocked and prevented from piling up above the steel cables 74. Part of the loose waste sand directly passes through the gaps between the steel cables 74 and falls into the refining bin 2 below. As the waste sand accumulates above the steel cables 74, the steel cables 74 are squeezed by the gravity of the waste sand and start to bend and sink downward, pulling the tension plates 76 to move in the tension slots 75, increasing the stretching of the tension springs 77. And the large-volume waste sand attached to the steel cables 74 is tightened by the steel cables 74, and the steel cables 74 are synchronously embedded into the inner side of the waste sand. Subsequently, along with the downward impact and vibration during the filling of the waste sand above, the large-volume waste sand at the embedded part of the steel cables 74 begins to gradually fall off. Through the adaptive bending and sinking of the steel cables 74, the contact area and the embedding depth with the surface of the large-volume waste sand can be increased. Through the elastic pulling action of the tension springs 77, the steel cables 74 can be stretched adaptively according to the gravity change during the accumulation of the waste sand above it, improving the linear splitting effect of the steel cables 74 on the waste sand and accelerating the disintegration and falling-off rate of the large-volume waste sand.

[0043] As an implementation manner of the present invention, as Figure 8 、 Figure 11 、 Figure 13 and Figure 14As shown in the figure, the filler rack 8 includes a filler plate 81, a filler spring 82, a puncture rod 83, a connecting plate 84, a connecting spring 85, a filler rotating shaft 86 and a filler motor 87. The upper middle part of the refinement bin 2 is symmetrically installed with filler plates 81 by means of sliding fit. The filler plates 81 are respectively located on both sides of the upper through slot of the refinement bin 2. The lower ends of the filler plates 81 are installed with multiple groups of puncture rods 83 by means of sliding fit. The middle part of the filler plate 81 is provided with a V-shaped fold angle with an acute angle. The lower end of the fold angle position of the filler plate 81 is parallel to the material distribution plate 5. The puncture rods 83 are all installed at the fold angle position of the filler plate 81 by means of sliding fit. The included angle between the central axis of the puncture rod 83 and the upper end face of the material distribution plate 5 is an acute angle. The ends of the puncture rods 83 are evenly provided with grooves 831. Multiple groups of puncture rods 83 are respectively located above multiple material distribution plates 5. One end of the same group of puncture rods 83 is jointly installed with a connecting plate 84. Both ends of the connecting plate 84 are connected with the filler plate 81 through connecting springs 85. A roller 841 is installed in the middle of the connecting plate 84 by means of rotational fit. Multiple rings are fixedly installed on the filler rotating shaft 86. Extension plates 861 are evenly installed on the ring surface of the rings along the tangent direction. The extension plates 861 abut against the roller 841. And balls 862 are evenly installed on the side wall of the extension plate 861 by means of rotational fit. The filler rotating shaft 86 is installed in the C-shaped plate 4 through a bearing. The filler rotating shaft 86 is close to the connecting plate 84. The side wall of the C-shaped plate 4 is fixedly installed with a filler motor 87 through a motor seat. And the output shaft of the filler motor 87 is connected with one end of the filler rotating shaft 86 through a coupling.

[0044] During specific operation, when the waste sand falls from the upper middle part of the C-shaped plate 4, some waste sand clusters directly hit the inclined side wall in the upper middle part of the filler plate 81. Subsequently, some of the waste sand clusters decompose and fall off under the impact. And the filler plate 81 starts to perform a horizontal yielding and contracting sliding under the impact of the waste sand clusters, and the filler spring 82 enters a short-term compressed state. When the impact of the waste sand ends and it slides down along the inclined side wall of the filler plate 81, the force on the filler spring 82 weakens and it gradually elongates and returns. During the recovery process, it pushes the filler plate 81 to move back, drives the puncture rod 83 to move synchronously through the filler plate 81. When the waste sand cluster slides to the fold angle position of the filler plate 81, through the inclined puncture action of the puncture rod 83, the waste sand cluster can be knocked and broken;

[0045] Subsequently, start the packing motor 87 to operate. Drive the packing rotating shaft 86 to rotate through the packing motor 87, and drive the ring and the extension plate 861 on the ring to perform circumferential rotation through the packing rotating shaft 86. At this time, the connecting spring 85 can make the roller 841 on the side wall of the connecting plate 84 always abut against the side wall of the ring through its own elastic force. Subsequently, during the circumferential rotation of the extension plate 861, the connecting plate 84 can be pushed away from the packing rotating shaft 86 through the pushing action of the extension plate 861. The connecting plate 84 pushes the puncture rod 83 to extend outward from the packing plate 81, so that the end of the puncture rod 83 is inserted into the waste sand mass. Moreover, through the vibration effect when the ball 862 on the side wall of the extension plate 861 contacts the roller 841, the puncture rod 83 can also vibrate synchronously during the process of piercing the waste sand mass, enhancing the decomposition and crushing effect of the waste sand mass. At the same time, under the pushing action of the extension plate 861, the distance between the connecting plate 84 and the packing plate 81 is reduced, and at this time the connecting spring 85 gradually enters the compressed state. When the compression strength of the connecting spring 85 reaches the preset range, the connecting plate 84 and the packing plate 81 move integrally. Through the horizontal movement of the packing plate 81, the waste sand mass piled up above the U-shaped plate 4 can be concentrated towards the middle. At the same time, through the integral movement of the packing plate 81 and the connecting plate 84, the puncture rod 83 can perform a horizontal lateral movement synchronously when piercing the waste sand mass, while improving the decomposition rate of the waste sand mass, leveling the waste sand particles piled up in the material distribution plate 5, and increasing the average thickness of the waste sand piled up in the material distribution plate 5. The groove 831 provided on the side wall of the puncture rod 83 can increase the roughness of the contact surface between the puncture rod 83 and the waste sand mass, improving the disintegration rate of the waste sand mass. After the packing rotating shaft 86 drives the extension plate 861 to rotate through a preset angle, the extension plate 861 temporarily disengages from the contact with the connecting plate 84. Subsequently, under the action of the elastic reset of the connecting spring 85, the packing plate 81 and the connecting plate 84 are reset synchronously, and drive the puncture rod 83 to contract and move into the packing plate 81, releasing the piercing operation of the puncture rod 83 on the waste sand mass. In this way, through the intermittent cooperation of the extension plate 861 and the connecting plate 84, the puncture rod 83 can continuously reciprocate and pierce and crush from the bottom layer of the waste sand mass, improving the decomposition and crushing efficiency of the large-volume waste sand mass. At the same time, the generation of dust and suspended matter in the surrounding space can also be reduced by the way of bottom layer operation.

[0046] As an implementation manner of the present invention, as Figures 6 to 9As shown in the figure, a cross bar 741 is commonly installed in the middle of a plurality of the steel cables 74. Convex blocks 742 are uniformly welded on the outer wall of the steel cable 74 along its axial direction, and the convex blocks 742 are located between the cross bar 741 and the guide shaft 73. A telescopic rod 41 is fixedly installed on the side wall of the U-shaped plate 4. A compression spring is arranged between the telescopic end and the fixed end of the telescopic rod 41. A horizontal frame 411 is fixedly installed at the end of the telescopic end of the telescopic rod 41. A U-shaped ring 412 is fixedly installed at one end of the horizontal frame 411. The U-shaped ring 412 opens downward and the inner wall of the U-shaped ring 412 abuts against the side wall of the cross bar 741. The U-shaped ring 412 is made of magnetic material and the U-shaped ring 412 and the cross bar 741 are mutually adsorbed. A pull-down frame 413 is fixedly installed at the other end of the horizontal frame 411. A percussion shaft 23 is installed on the side wall of the refining bin 2 through a bearing. A percussion rod 231 is fixedly installed in the middle of the percussion shaft 23. The percussion rod 231 slidably abuts against the side wall of the pull-down frame 413. Belt wheels 9 are fixedly installed at the ends of the percussion shaft 23 and the packing rotating shaft 86, and the belt wheel 9 at the end of the percussion shaft 23 and the belt wheel 9 at the end of the packing rotating shaft 86 are connected by a belt 10 in a transmission manner.

[0047] In specific operation, in the initial position, the telescopic rod 41 is in an extended state, and when the steel cable 74 is in a horizontally stretched state, the cross bar 741 is synchronously in a horizontally placed state. At this time, the U-shaped ring 412 abuts against and is adsorbed on the side wall of the cross bar 741. Subsequently, in the process of the filling motor 87 driving the filling shaft 86 to rotate, the connection rotation between the pulley 9 and the belt 10 can drive the knocking shaft 23 to rotate continuously, and the knocking rod 231 is driven by the knocking shaft 23 to rotate circumferentially. When the knocking rod 2 When the telescopic end of the telescopic rod 41 is retracted, the downward movement of the U-shaped ring 412 can push the cross bar 741 to move downward, and the cross bar 741 can pull the steel cable 74 from the horizontal or slightly concave state to the large-angle bending state. At the same time, under the traction of the cross bar 741 and the guiding action of the guide shaft 73, the depth of the steel cable 74 embedded in the waste sand mass is deepened, and during the embedding process of the steel cable 74, it slides along the outer layer of the waste sand mass synchronously, and the protrusion 742 arranged on the steel cable 74 can increase the surface cracks of the waste sand block during the embedding and sliding process. When the knocking rod 231 rotates to a predetermined angle and breaks away from the contact and pushing action with the lower pull frame 413, the U-shaped ring 412 resets upward, and then, under the magnetic adsorption and the reset of the tension spring 77 Under the action, the cross bar 741 moves upward to reset and restores the steel cable 74 from the bent state. In the process of the steel cable 74 restoring to the horizontal state, it slides again in the cracks on the surface of the waste sand, and at this time, the protrusion 742 slides toward the outside of the cracks during the sliding process. The sliding action of the protrusion 742 can accelerate the disintegration rate of the waste sand mass, and so on. Through the linear cutting effect of the steel cable 74 on the bottom layer of the waste sand mass, the volume of the waste sand falling downward can be controlled while accelerating the decomposition and crushing of the waste sand mass.

[0048] As an embodiment of the present invention, Figure 3 , Figure 5 , Figure 6 , Figure 11 and Figure 12As shown, guide rails 21 are symmetrically installed inside the refinement bin 2. The central axis of the guide rail 21 is parallel to the side line of the material distribution plate 5. The side wall of the material distribution plate 5 is connected to the guide rail 21 in a sliding fit manner. The material distribution plates 5 are all horizontally installed at the inner bottom of the refinement bin 2. The material distribution plates 5 and the guide rails 21 are arranged at intervals, and the output shaft of the material distribution cylinder 6 is connected to the material distribution plate 5 located in the middle of the refinement bin 2. A steering gear 211 is installed in the middle of the guide rail 21 in a rotational fit manner. The material distribution plates 5 are respectively located on the left and right sides of the guide rail 21, and meshing teeth meshing with the steering gear 211 are provided on the side walls of the material distribution plates 5. Stockpiling grooves 51 are evenly formed in the middle of the plate surface of the material distribution plate 5. Magnetic plates 511 are fixedly installed in the stockpiling grooves 51. A closed box 22 is fixedly installed at the upper end of the refinement bin 2. The closed box 22 is located on one side of the collection port 20. A plurality of sets of poking teeth 221 are installed in the closed box 22 in a sliding fit manner. The upper ends of the poking teeth 221 are connected to the closed box 22 through return springs 222, and the lower ends of the poking teeth 221 are mutually adsorbed with the magnetic plates 511. The plurality of sets of poking teeth 221 are arranged in a staggered manner with long and short intervals. A gap is reserved between the lower ends of the poking teeth 221 and the upper end surface of the material distribution plate 5. The magnetic plates 511 are bent and arranged in the stockpiling grooves 51, and the height of the upper end surface of the magnetic plate 511 is lower than the height of the upper end surface of the material distribution plate 5.

[0049] During specific operation, when the material distribution cylinder 6 drives the material distribution plate 5 in the middle of the refinement bin 2 to reciprocate, the material distribution plates 5 on both sides of the refinement bin 2 can perform displacement sliding in opposite directions through the meshing transmission between the steering gear 211 and the meshing teeth. When the waste sand mass drops from above the U-shaped plate 4 into the refinement bin 2, the waste sand begins to accumulate in the stacking groove 51 of the material distribution plate 5. Subsequently, the horizontal movement of the material distribution plate 5 can drive the waste sand to move synchronously. Through the synchronous sliding of multiple material distribution plates 5 in opposite directions, the accumulated waste sand mass can bear the shear force in the horizontal direction and be gradually decomposed and broken. When the waste sand follows the material distribution plate 5 through the area below the puncture rod 83, through the blocking and piercing action of the puncture rod 83, the waste sand is further decomposed and broken, and the thickness of the waste sand passing through the area of the puncture rod 83 remains uniform. When the waste sand follows the movement of the material distribution plate 5 and reaches the position below the closed box 22, through the adsorption between the poking teeth 221 and the magnetic plate 511, the poking teeth 221 gradually move closer to the magnetic plate 511, and during the movement, the protruding waste sand on the path is broken. And because the magnetic plate 511 is arranged with multi-angle bends, when the magnetic plate 511 moves out of the area below the poking teeth 221, the poking teeth 221 will move upward for reset under the reset action of the reset spring 222. The staggered poking teeth 221 of different lengths can adapt to the uneven changes on the upper layer of the waste sand, and the protruding waste sand particles that do not meet the volume requirements are broken by the multi-station piercing method. The decomposed and broken waste sand then continues to move in the stacking groove 51 with the material distribution plate 5 until it reaches the collection port 20. Subsequently, the waste sand drops into the collection bin 3 under the action of gravity.

[0050] During operation:

[0051] Working principle: Start the material distribution cylinder 6 to perform intermittent reciprocating work. Drive the material distribution plate 5 to perform reciprocating linear motion in the refinement bin 2 through the output shaft of the material distribution cylinder 6. Then, load the large-volume waste sand to be refined and broken by the staff or existing conveying equipment from the opening part at the upper end of the U-shaped plate 4. Subsequently, the large-volume waste sand enters the inner side of the U-shaped plate 4 under the action of its own gravity, and sequentially passes through the partition frame 7 and the filler frame 8. Then, the waste sand accumulates in the middle of the refinement bin 2. Subsequently, under the reciprocating handling action of the material distribution plate 5, part of the waste sand accumulated at the bottom follows the material distribution plate 5 to move synchronously. Through the shearing action during the lateral movement of the material distribution plate 5, continuous multi-layer peeling operations can be performed on the large-volume waste sand, and finally, the refined waste sand particles are transported to the collection port 20, so that the waste sand falls from the collection port 20 into the collection bin 3 for stacking and collection. Then, the refined and broken waste sand is transported and stored by the staff or existing conveying equipment.

[0052] The first step: After the large-volume waste sand enters the inner side of the C-shaped plate 4, through the bottom support of the steel cable 74, part of the waste sand can be blocked, causing it to accumulate on the upper layer of the steel cable 74. Part of the loose waste sand directly passes through the gaps between the steel cables 74 and falls into the refining bin 2 below;

[0053] The second step: When the waste sand falls from the upper and middle layers of the C-shaped plate 4, part of the waste sand mass directly impacts the inclined side wall in the upper and middle parts of the packing plate 81. Subsequently, part of the waste sand mass decomposes and falls off under the impact, and the packing plate 81 starts to perform a horizontal yielding and shrinking sliding under the impact of the waste sand mass, causing the packing spring 82 to enter a short-term compressed state. When the waste sand impact ends and slides down along the inclined side wall of the packing plate 81, the force on the packing spring 82 weakens and it gradually elongates and returns. During the recovery process, it pushes the packing plate 81 to move back. Through the packing plate 81, the piercing rod 83 is driven to move synchronously. When the waste sand mass slides to the corner position of the packing plate 81, through the inclined piercing action of the piercing rod 83, the waste sand mass can be struck and broken;

[0054] The third step: Start the packing motor 87 to operate. The packing motor 87 drives the packing rotating shaft 86 to rotate. The packing rotating shaft 86 drives the ring and the extension plate 861 on the ring to perform a circumferential rotation. At this time, the connecting spring 85 can make the roller 841 on the side wall of the connecting plate 84 always abut against the side wall of the ring through its own elastic force. Subsequently, during the circumferential rotation of the extension plate 861, through the pushing action of the extension plate 861, the connecting plate 84 can be pushed away from the packing rotating shaft 86. The connecting plate 84 pushes the piercing rod 83 to extend outward from the packing plate 81, so that the end of the piercing rod 83 is inserted into the waste sand mass. Moreover, through the vibration effect when the ball 862 on the side wall of the extension plate 861 contacts the roller 841, the piercing rod 83 can also vibrate synchronously during the process of penetrating the waste sand mass, enhancing the decomposition and crushing effect of the waste sand mass. Through the intermittent cooperation of the extension plate 861 and the connecting plate 84, the piercing rod 83 can continuously reciprocate and penetrate from the bottom layer of the waste sand mass, improving the decomposition and crushing efficiency of the large-volume waste sand mass. At the same time, by operating in the bottom layer, the generation of dust and suspended matter in the surrounding space can also be reduced;

[0055] Step 4: When the filling motor 87 drives the filling shaft 86 to rotate, the connection between the pulley 9 and the belt 10 can drive the knocking shaft 23 to rotate continuously, and the knocking rod 231 is driven to rotate circumferentially by the knocking shaft 23. When the knocking rod 231 rotates to a predetermined position, the end of the knocking rod 231 drives the lower pull-down frame 413 to move downward, and the lower pull-down frame 413 drives the horizontal frame 411 to move downward, and the horizontal frame 411 drives the U-shaped ring 412 to move downward synchronously, while the telescopic end of the telescopic rod 41 is retracted. The downward movement of the U-shaped ring 412 can push the cross bar 741 to move downward, and the traction of the cross bar 741 on the steel cable 74 causes the steel cable 74 to enter a large-angle bending state from a horizontal or slightly concave state. At the same time, under the traction of the cross bar 741 and the guiding action of the guide shaft 73, the depth of the steel cable 74 embedded in the waste sand mass is deepened, and in the process of the steel cable 74 being embedded, it slides along the outer layer of the waste sand mass synchronously. The linear cutting action of the steel cable 74 on the bottom layer of the waste sand mass can accelerate the decomposition and crushing of the waste sand mass while controlling the volume of the waste sand falling downward;

[0056] Step 5: When the dividing cylinder 6 pushes the dividing plate 5 in the middle of the refining bin 2 to slide back and forth, the meshing transmission action between the steering gear 211 and the meshing teeth can make the dividing plates 5 on both sides of the refining bin 2 slide in opposite directions. When the waste sand mass falls from the top of the mold plate 4 to the refining bin 2, the waste sand begins to accumulate in the stacking trough 51 in the dividing plate 5. Subsequently, the horizontal movement of the dividing plate 5 can drive the waste sand to move synchronously. By synchronously sliding multiple dividing plates 5 in opposite directions, the accumulated waste sand mass can be subjected to shear force in the horizontal direction and gradually decomposed and crushed. When the waste sand follows the dividing plate 5 to pass through the area below the piercing rod 83, the waste sand is further decomposed and crushed through the blocking and interlacing action of the piercing rod 83, and the thickness of the waste sand passing through the area of ​​the piercing rod 83 remains uniform. When following the movement of the dividing plate 5 and reaching the position below the closed box 22, the poking tooth 221 gradually moves closer to the magnetic plate 511 through the adsorption effect between the poking tooth 221 and the magnetic plate 511, and crushes the waste sand protruding on the path during the movement. Because the magnetic plate 511 is arranged in a multi-angle bending manner, when the magnetic plate 511 moves out of the position area below the poking tooth 221, the poking tooth 221 will move upward under the reset action of the reset spring 222. The poking tooth 221 set by the length offset can adapt to the uneven changes in the upper layer of the waste sand, and crush the protruding waste sand particles that do not meet the volume requirements through multi-station interlacing. The decomposed and crushed waste sand continues to move in the stacking trough 51 following the dividing plate 5 until it reaches the collection port 20. Then, the waste sand falls into the collection bin 3 under the action of gravity.

[0057] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A large-volume waste sand refinement treatment device, comprising an upright frame (1), a refinement bin (2), a collection bin (3), a C-shaped plate (4), a material distribution plate (5) and a material distribution air cylinder (6), characterized in that: The vertical frames (1) are symmetrically installed at both ends of the described refinement bin (2). The collection bin (3) is detachably installed on the lower end face of the middle part of the refinement bin (2). A collection port (20) is formed at the bottom of the refinement bin (2), and the refinement bin (2) is communicated with the collection bin (3) through the collection port (20). A material distribution plate (5) is installed inside the refinement bin (2) in a sliding fit manner. A material distribution cylinder (6) is fixedly installed at one end inside the refinement bin (2), and the output shaft of the material distribution cylinder (6) is connected to the material distribution plate (5). A U-shaped plate (4) with an opening downward is fixedly installed at the upper end of the refinement bin (2). Through holes corresponding to each other are symmetrically formed in the middle of the upper end of the U-shaped plate (4) and the middle of the upper end of the refinement bin (2). A dividing frame (7) is installed inside the U-shaped plate (4). A filling frame (8) is movably installed at the upper end of the U-shaped plate (4). Belt pulleys (9) are installed on both the dividing frame (7) and the filling frame (8), and the belt pulley (9) on the dividing frame (7) is drivingly connected to the belt pulley (9) on the filling frame (8) through a belt (10). Guide rails (21) are symmetrically installed inside the described refinement bin (2). The central axis of the guide rails (21) is parallel to the side line of the material distribution plate (5). The side wall of the material distribution plate (5) is connected to the guide rails (21) in a sliding fit manner. A steering gear (211) is installed in the middle of the guide rails (21) in a rotational fit manner. The material distribution plate (5) is located on both the left and right sides of the guide rails (21), and engaging teeth meshing with the steering gear (211) are provided on the side wall of the material distribution plate (5). Stockpiling grooves (51) are evenly formed in the middle of the plate surface of the material distribution plate (5). Magnetic plates (511) are fixedly installed in the stockpiling grooves (51). A closed box (22) is fixedly installed at the upper end of the refinement bin (2). The closed box (22) is located on one side of the collection port (20). Multiple groups of stabbing teeth (221) are installed inside the closed box (22) in a sliding fit manner. The upper ends of the stabbing teeth (221) are connected to the closed box (22) through return springs (222), and the lower ends of the stabbing teeth (221) are mutually adsorbed to the magnetic plates (511). The dividing frame (7) includes two tensioning plates (76) arranged on the inner walls at both ends of the U-shaped plate (4) and multiple steel cables (74) jointly connected between the two tensioning plates (76) and in a horizontally taut state. When a large-volume waste sand mass drops, the downward impact is utilized to embed the steel cables (74) into the waste sand mass, increasing the disintegration rate of the waste sand mass. The filling frame (8) includes filling plates (81) symmetrically installed at the upper middle part of the refinement bin 2 in a sliding fit manner and multiple groups of piercing rods (83) installed at the lower ends of the filling plates (81) in a sliding fit manner. The filling plates (81) perform a horizontal yielding contraction sliding and a reset movement under the impact of the dropping waste sand mass, and the movement is transmitted to the piercing rods (83) to perform reciprocating piercing and crushing on the waste sand mass.

2. The large-volume waste sand refinement processing equipment according to claim 1, characterized in that: The described material distribution plates (5) are all horizontally installed at the inner bottom of the refining bin (2). The material distribution plates (5) and the guide rails (21) are arranged at intervals, and the output shaft of the material distribution cylinder (6) is connected to the material distribution plate (5) located in the middle of the refining bin (2).

3. A large-volume waste sand refinement treatment device according to claim 1, characterized in that: Multiple groups of the described poking teeth (221) are arranged in a staggered pattern with long and short intervals. There are gaps reserved between the lower ends of the poking teeth (221) and the upper end surfaces of the material distribution plates (5). The magnetic plates (511) are bent and arranged in the stacking grooves (51), and the height of the upper end surfaces of the magnetic plates (511) is lower than the height of the upper end surfaces of the material distribution plates (5).

4. A large-volume waste sand refinement treatment device according to claim 1, characterized in that: The described filler rack (8) further includes a filler spring (82), a connecting plate (84), a connecting spring (85), a filler rotating shaft (86), and a filler motor (87). The filler plates (81) are respectively located on both sides of the through slots at the upper end of the refining bin (2). Multiple groups of puncturing rods (83) are respectively located above multiple material distribution plates (5). One end of the puncturing rods (83) in the same group is commonly installed with a connecting plate (84). Both ends of the connecting plate (84) are connected to the filler plates (81) through connecting springs (85). A filler rotating shaft (86) is installed in the C-shaped plate (4) through a bearing. The filler rotating shaft (86) is close to the connecting plate (84). A filler motor (87) is fixedly installed on the side wall of the C-shaped plate (4) through a motor base, and the output shaft of the filler motor (87) is connected to one end of the filler rotating shaft (86) through a coupling.

5. The large-volume waste sand refinement treatment device according to claim 4, characterized in that: A roller (841) is installed in the middle of the described connecting plate (84) through a rotational fit. Multiple rings are fixedly installed on the filler rotating shaft (86). Extension plates (861) are evenly installed on the ring surfaces of the rings along their tangential directions. The extension plates (861) abut against the roller (841), and balls (862) are evenly installed on the side walls of the extension plates (861) through a rotational fit.

6. The large-volume waste sand refinement processing equipment according to claim 4, wherein: The middle of the described filler plate (81) is provided with a V-shaped fold with an acute angle. The lower end at the fold position of the filler plate (81) is parallel to the material distribution plate (5). The puncturing rods (83) are all installed at the fold position of the filler plate (81) through a sliding fit. The included angle between the central axis of the puncturing rod (83) and the upper end surface of the material distribution plate (5) is an acute angle. Grooves (831) are evenly formed at the ends of the puncturing rods (83).

7. A large-volume waste sand refinement treatment device according to claim 1, characterized in that: The described dividing frame (7) includes waist-shaped slots (71), material baffle plates (72), guide shafts (73), tensioning slots (75) and tension springs (77). Two groups of waist-shaped slots (71) are provided on the middle side wall of the U-shaped plate (4). A material baffle plate (72) is jointly installed between the waist-shaped slots (71) in the same group, and the material baffle plates (72) are respectively located on both sides of the through slot of the U-shaped plate (4). Tensioning slots (75) are installed on the inner walls at both ends of the U-shaped plate (4). Tensioning plates (76) are installed in the tensioning slots (75) by means of sliding fit. The tensioning plates (76) are connected to the side wall of the U-shaped plate (4) through tension springs (77). And the position height of the steel cables (74) is higher than that of the packing plates (81). A plurality of guide shafts (73) are evenly installed in the middle of the material baffle plates (72). The guide shafts (73) correspond to the steel cables (74) one by one, and the steel cables (74) slide through the guide shafts (73).

8. A large-volume waste sand refinement treatment device according to claim 7, characterized in that: A cross bar (741) is jointly installed in the middle of a plurality of the steel cables (74). A telescopic rod (41) is fixedly installed on the side wall of the U-shaped plate (4). A compression spring is arranged between the telescopic end and the fixed end of the telescopic rod (41). The end of the telescopic end of the telescopic rod (41) is fixedly installed with a horizontal frame (411). One end of the horizontal frame (411) is fixedly installed with a U-shaped ring (412). The U-shaped ring (412) opens downward, and the inner wall of the U-shaped ring (412) abuts against the side wall of the cross bar (741). The other end of the horizontal frame (411) is fixedly installed with a downward pull frame (413). A knocking shaft (23) is installed on the side wall of the refining bin (2) through a bearing. A knocking rod (231) is fixedly installed in the middle of the knocking shaft (23). The knocking rod (231) slides and abuts against the side wall of the downward pull frame (413). Belt wheels (9) are fixedly installed at the ends of the knocking shaft (23) and the packing rotating shaft (86). And the belt wheel (9) at the end of the knocking shaft (23) is in transmission connection with the belt wheel (9) at the end of the packing rotating shaft (86) through a belt (10).

9. The large-volume waste sand refinement treatment equipment according to claim 8, characterized in that: The U-shaped ring (412) is made of magnetic material, and the U-shaped ring (412) adsorbs to the cross bar (741).

10. A large-volume waste sand refinement treatment device according to claim 8, characterized in that: Convex blocks (742) are evenly welded on the outer wall of the steel cable (74) along its axial direction, and the convex blocks (742) are located between the cross bar (741) and the guide shaft (73).

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