Waste sand regeneration grinding device

Abstract

The present application relates to the technical field of waste sand regeneration, and specifically discloses a waste sand regeneration grinding device, comprising a housing, a grinding assembly located inside the housing, a power assembly connected to the grinding assembly, and a feed port and a discharge port respectively arranged on both sides of the housing, wherein the housing comprises an outer shell, a motor fixing seat fixed on the outer shell, a plurality of folding plates horizontally installed above the inner part of the outer shell, and a screen installed horizontally below the inner part of the outer shell; the power assembly comprises a plurality of motors mounted on the motor fixing seat, and a plurality of rotating shafts connected to the motor at one end, the rotating shafts being parallel to each other and being arranged through the grinding area; the grinding assembly comprises a plurality of grinding wheels with mounting holes provided in the center, and the grinding wheel fixing sleeves are arranged on the rotating shafts. The waste sand regeneration grinding device of the present invention can produce a better grinding effect, and can also adaptively reduce the volume of the device, saving space in the factory building.

Description

Technical Field

[0001] The present invention relates to the technical field of waste sand regeneration, in particular to a waste sand regeneration grinding device. Background Art

[0002] With the rapid development of modern industry, demand for castings made of steel, iron, and most nonferrous alloys has increased. Sand casting, a method used for casting, is currently the majority of castings, as its molding materials are inexpensive and readily available, and its molds are simple to manufacture. Because it can accommodate both single-piece and batch production, as well as mass production, my country is a major casting producer, ranking among the world's top producers. Sand casting accounts for the vast majority of this production, approximately 80% to 90%. Statistics show that for every ton of qualified castings produced in my country, approximately 1.2 tons of waste sand is generated. This waste sand, often containing either ineffective or ineffective binders, cannot be directly used for secondary casting. While a small amount is recycled, the majority is discarded, resulting in a significant waste of limited resources and severe environmental pollution. Therefore, the treatment and utilization of waste sand has become a pressing issue in my country.

[0003] Existing foundry sand recovery devices have a short effective sand grinding time, resulting in poor removal of the film coating on the sand surface and a low sand recovery rate. While increasing the grinding path can improve grinding efficiency, it also increases the size of the equipment, taking up too much factory space. Summary of the Invention

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a waste sand regeneration grinding device.

[0005] A waste sand regeneration grinding device comprises a housing, a grinding assembly located inside the housing, a power assembly connected to the grinding assembly, and a feed port and a discharge port respectively arranged on both sides of the housing, wherein:

[0006] The box body includes a shell, a motor fixing base fixed on the shell, a plurality of folding plates installed horizontally on the upper part of the shell, and a screen installed horizontally on the lower part of the shell. The folding plates and the screen divide the inside of the shell from top to bottom into a dust collection area, a grinding area and an impurity collection area;

[0007] The power assembly includes several motors mounted on motor fixing seats, and several rotating shafts connected to the motors at one end. The rotating shafts are parallel to each other and pass through the grinding area.

[0008] The grinding assembly includes a plurality of grinding wheels with mounting holes in the centers, and the grinding wheels are fixedly sleeved on the rotating shaft.

[0009] Furthermore, it also includes a plurality of partitions vertically installed in the grinding area, wherein:

[0010] The partition and the rotating shaft are spaced apart and parallel to each other.

[0011] A first material passing port is provided on the partition, and the first material passing ports on a plurality of partitions, the material feed port and the material discharge port form a "bow"-shaped sand material conveying route.

[0012] Furthermore, it also includes a plurality of manhole assemblies mounted on the housing, the manhole assemblies including a manhole cover, a plurality of locking plates and a plurality of hand wheels having the same number as the locking plates, wherein:

[0013] The outer shell is provided with a plurality of openings corresponding to the manhole covers;

[0014] One side of the manhole cover is rotatably connected to the housing, and the manhole cover covers the outside of the opening;

[0015] One end of the locking piece is fixed to the edge of the manhole cover, and the other end is provided with a slide groove;

[0016] The hand wheel is slidably mounted on the housing through a slide groove.

[0017] Furthermore, the manhole assembly is divided into a dust collection area manhole, a grinding area manhole and an impurity collection area manhole.

[0018] Furthermore, it also includes an air outlet assembly, which includes a damper, a damper shaft fixed to the damper, and a handle connected to one end of the damper shaft, wherein:

[0019] The top of the shell is provided with an air outlet that matches the size of the air door;

[0020] The damper shaft passes through the air outlet setting.

[0021] Furthermore, the power assembly further includes a tapered sleeve pulley, a shaft end baffle and a belt, wherein:

[0022] The shaft end baffle is fixed to one end of the rotating shaft adjacent to the motor;

[0023] The tapered sleeve pulley is stopped at the shaft end baffle and sleeved on the rotating shaft;

[0024] The output end of the motor drives the cone sleeve pulley and the rotating shaft to rotate synchronously through a belt.

[0025] Furthermore, it also includes a number of reinforcing plates that match the number of the partitions, and a second feed port is provided on the reinforcing plates, wherein:

[0026] The reinforcing plate is fixedly mounted on the partition plate, and the size of the second feeding opening is greater than or equal to the first feeding opening.

[0027] Furthermore, the grinding wheel includes a wheel shaft, a wheel rim, and an annular groove circumferentially arranged between the wheel shaft and the wheel rim, and the surfaces of the annular groove and the wheel rim are both provided with a frosted layer.

[0028] Furthermore, it also includes several flange covers and bearings, wherein:

[0029] The inner ring of the bearing is fixedly connected to the rotating shaft;

[0030] The flange cover is sleeved on the outer ring of the bearing, and the flange cover is fixedly connected to the outer ring of the bearing, and the flange cover is fixed on the housing.

[0031] Furthermore, it also includes a dustproof protective cover, the shape of which matches the overall shape of the motor, the tapered sleeve pulley, the shaft end baffle and the belt.

[0032] The waste sand regeneration and grinding device of the present invention divides the box body from top to bottom into a dust collecting area, a grinding area and an impurity collection area. The grinding area is provided with several parallel rotating shafts that drive several grinding wheels installed thereon to grind the waste sand. The generated dust enters the dust collecting area, and impurities with too small particle size enter the impurity collection area. The ground sand material is discharged from the discharge port, achieving a good waste sand grinding effect. The original residue on the sand material is effectively removed, and the sand material is recycled and reused; at the same time, the partition forms a longer grinding path to produce a better grinding effect, and can also adaptively reduce the volume of the device, saving factory space. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a front view structural schematic diagram of a waste sand regeneration grinding device according to an embodiment of the present invention;

[0035] Figure 2 for Figure 1 Schematic diagram of the AA section structure;

[0036] Figure 3 2. It is a schematic top view of the structure of the waste sand regeneration grinding device according to an embodiment of the present invention;

[0037] Figure 4 Schematic diagram of the sand material conveying route of the waste sand regeneration grinding device according to an embodiment of the present invention;

[0038] Figure 5 Schematic diagram of the structure of a partition in a waste sand regeneration and grinding device according to an embodiment of the present invention;

[0039] Figure 62. A schematic structural diagram of a manhole assembly in a waste sand regeneration and grinding device according to an embodiment of the present invention;

[0040] Figure 7 is a cross-sectional view of a grinding wheel in a waste sand regeneration grinding device according to an embodiment of the present invention;

[0041] Among them: 1-box, 11-shell, 111-air outlet, 12-motor fixing seat, 13-folding plate, 14-screen, 101-dust collection area, 102-grinding area, 103-impurity collection area, 2-grinding assembly, 21-grinding wheel, 211-mounting hole, 212-wheel axle, 213-wheel rim, 214-annular groove, 3-power assembly, 31-motor, 32-rotating shaft, 4-feed port, 5-discharge port, 6-partition, 61-first feeding port, 7-manhole assembly, 71-manhole cover, 72-locking plate, 721-chute, 73-handwheel, 701-dust collection area manhole, 702-grinding area manhole, 703-impurity collection area manhole, 8-air outlet assembly, 81-air door, 82-air door shaft, 83-handle. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0043] like Figure 1 and Figure 3As shown, an embodiment of the present invention discloses a waste sand regeneration grinding device, comprising a housing 1, a grinding assembly 2 located inside the housing 1, a power assembly 3 connected to the grinding assembly 2, and a feed port 4 and a discharge port 5 respectively arranged on both sides of the housing 1. The housing 1 provides a space for waste sand grinding operations, wherein the housing 1 comprises an outer shell 11, a motor fixing seat 12 fixed on the outer shell 11, a plurality of folding plates 13 horizontally mounted above the inner portion of the outer shell 11, and a screen 14 horizontally mounted below the inner portion of the outer shell 11, the folding plates 13 and the screen 14 divide the inner portion of the outer shell 11 from top to bottom into a dust collecting area 101, a grinding area 102, and an impurity collection area 103. The outer shell 11 is composed of at least six side panels, namely, upper, lower, left, right, front, and rear, with a cavity structure formed inside. The motor fixing seat 12 is used to carry the power assembly 3. The folding plate 13 is a planar structure, tilted at a certain angle. Several folding plates 13 are parallel to each other, presenting a horizontal barrier surface, which can not only prevent the waste sand particles in the grinding area 102 from entering the dust collecting area 101, but also provide gaps for the dust generated by grinding to enter the dust collecting area 101. The screen 14 is set horizontally to screen impurities with too small particle size in the waste sand in the grinding area 102 into the impurity collection area 103, thereby improving the effect of waste sand grinding. The power component 3 includes several motors 31 mounted on the motor fixing seat 12, and several rotating shafts 32 with one end connected to the motor 31. The rotating shafts 32 are parallel to each other and are set through the grinding area 103. The grinding component 2 includes several grinding wheels 21 with a mounting hole 211 in the center. The grinding wheel 21 is fixedly sleeved on the rotating shaft 32. When the waste sand enters the housing 11 from the feed port 4, the several motors 31 in the power assembly 3 of this embodiment respectively drive the several rotating shafts 32 arranged in parallel to each other to rotate, so that the grinding wheels 21 installed on the rotating shafts 32 grind the waste sand, and the generated dust enters the dust collection area 101, and the impurities with too small particle size enter the impurity collection area 103, and the ground sand is discharged from the discharge port 5. This embodiment does not limit the rotation direction of the several rotating shafts 32. In order to increase the length of time that the sand particles remain in the box 1, the rotation directions of two adjacent rotating shafts 32 can be set to opposite directions, or those skilled in the art can set rotation schemes in other directions, which all fall within the scope of protection of the present invention. The specific number of grinding wheels 21 is not limited in the embodiment of the present invention. Preferably, at least two grinding wheels 21 are installed on each rotating shaft 32 to grind the waste sand more fully.

[0044] In some embodiments, as Figures 1 to 3 , including four motors 31 and four rotating shafts 32, each rotating shaft 32 is fixedly connected to three grinding wheels 21. When implementing it, those skilled in the art can set the number of motors 31, rotating shafts 32 and grinding wheels 21 according to the amount of impurities on the surface of the waste sand and the difficulty of grinding. This is only an example of the implementation method and is not to be understood as a limitation on the scope of protection of the solution.

[0045] Specifically, such as Figure 2 and Figure 4 and Figure 5 As shown, the waste sand regeneration grinding device of the present embodiment further includes several partitions 6 vertically mounted within the grinding zone 102. The partitions 6 are spaced and parallel to the rotating shaft 32. First, the partitions 6 define a first feed opening 61. These first feed openings 61, along with the feed opening 4 and the discharge opening 5, form a "bow"-shaped sand conveying path. The partitions 6 firstly divide the grinding zone 102, defining a grinding space within each rotating shaft 32. This allows for greater friction between the sand within each grinding space, thereby improving the grinding effect. Furthermore, the "bow"-shaped path formed by the first feed opening 61, the feed opening 4, and the discharge opening 5 increases the path and duration of sand grinding, further facilitating the removal of surface residue and mud content, thereby further improving sand quality. While maintaining a sufficient grinding path, the overall length of the grinding device can be shortened, saving space in the factory. In this embodiment, the first feed opening 61 should not be too large, as otherwise, the sand will flow too quickly, reducing the grinding time in the grinding zone 102 and thus affecting the grinding effect. The embodiment does not limit the shape of the first feeding port 61 , which is preferably square or circular.

[0046] Specifically, such as Figure 1 and Figure 6 As shown, the waste sand regeneration grinding device of the embodiment of the present invention also includes a plurality of manhole assemblies 7 installed on the shell 11, the manhole assembly 7 includes a manhole cover 71, a plurality of locking plates 72 and a plurality of hand wheels 73 with the same number as the locking plates 72, wherein: a plurality of openings corresponding to the manhole cover 71 are opened on the shell 11; one side of the manhole cover 71 is rotatably connected to the shell 11, and the manhole cover 71 covers the outside of the opening; one end of the locking plate 72 is fixed to the edge of the manhole cover 71, and the other end is provided with a slide groove 721; the handwheel 73 is slidably installed on the shell 11 through the slide groove 721. The manhole cover 71 in this embodiment completely covers the opening, and the handwheel 73 can slide in the slide groove 721 of the locking plate 72. When the handwheel 7173 rotates to the bottom of the slide groove 721, the locking plate 72 is pressed by the handwheel 73, making it impossible for the manhole cover 71 to be opened. When the handwheel 7173 rotates to the notch of the slide groove 721, the handwheel 73 has no limiting effect on the locking plate 72. At this time, the manhole cover 71 can be opened, and the operator can observe the situation inside the shell 11. In order to achieve the locking purpose of the handwheel 73, the diameter of the handwheel 73 in this embodiment should be larger than the groove width of the slide groove 721. This embodiment does not limit the number of locking plates 72 and handwheels 73 in the manhole assembly 7. In order to achieve a better sealing effect, such as Figure 1As shown, two locking plates 72 and two handwheels 73 are provided on the left and right sides of the manhole cover 71 for locking. This embodiment can also provide two locking plates 72 and two handwheels 73 on the upper and lower sides of the manhole cover 71 for further locking. Those skilled in the art will determine the number of locking plates 72 and handwheels 73 during implementation.

[0047] Specifically, such as Figure 1 and Figure 2 As shown, the manhole assembly 7 is divided into a dust collection area manhole 701, a grinding area manhole 702 and an impurity collection area manhole 703. Figure 1 and Figure 2 This embodiment includes a dust collection area manhole 701 for observing dust collection conditions, four grinding area manholes 702 positioned to match the arrangement of the rotating shaft 32, and an impurity collection area manhole 703 for observing impurity accumulation and removing impurities through the impurity collection area manhole 703. Persons skilled in the art may also install the manhole assembly 7 at other locations on the housing 11, and this embodiment is not limited thereto.

[0048] Specifically, such as Figures 1 to 3 The waste sand regeneration grinding device of the embodiment of the present invention also includes an air outlet assembly 8, which includes a damper 81, a damper shaft 82 fixed to the damper 81, and a handle 83 connected to one end of the damper shaft 82, wherein: the top of the housing 11 is provided with an air outlet 111 that matches the size of the damper 81; the damper shaft 82 is arranged to pass through the air outlet. The operator adjusts the angle of the damper 81 by turning the handle 83, thereby adjusting the size of the channel connecting the dust collection area 103101 to the outside world. This embodiment preferably also has an air inlet, which is arranged in the impurity collection area 103. The fan blows air into the air inlet, which can not only blow the dust and waste residue generated by grinding into the dust collection area 101 and discharge it through the air outlet 111, but also blow up the sand material, increase the contact between the sand material and the grinding wheel 21, and improve the grinding effect. This embodiment does not limit the shape and size of the air outlet 111 and the damper 81, and preferably uses a round or square shape.

[0049] Specifically, the power assembly 3 in this embodiment of the present invention also includes a tapered sleeve pulley, a shaft end baffle, and a belt. The shaft end baffle is fixed to the end of the rotating shaft 32 near the motor 31; the tapered sleeve pulley abuts against the shaft end baffle and is sleeved onto the rotating shaft 32; and the output end of the motor 31 drives the tapered sleeve pulley and the rotating shaft to rotate synchronously via a belt. This embodiment of the tapered sleeve pulley and belt transmits force from the motor 31 to the rotating shaft 32, resulting in a compact structure, no shaft positioning required, and easy installation.

[0050] Specifically, the embodiment of the present invention also includes a number of reinforcing plates that match the number of the partitions 6, and a second feed port is provided on the reinforcing plates, wherein: the reinforcing plates are fixedly mounted on the partitions 6, and the size of the second feed port is greater than or equal to the first feed port 61. When the sand material is transmitted through the first feed port 61 on the partition 6, it will cause impact and friction on the partition 6. In order to ensure the barrier effect of the partition 6, the reinforcing plates of this embodiment are installed on the partition 6, and the second discharge port provided thereon corresponds to the first discharge port 61, so that the sand material can pass through the first feed port 61 and the second feed port. This embodiment does not limit the size and material of the reinforcing plates. Preferably, the height of the reinforcing plates in this embodiment is consistent with that of the partition 6, so as to enhance the barrier strength of the partition 6 in the vertical direction. In this embodiment, the material of the reinforcing plates and the partitions 6 is preferably steel plates, which have high strength and good wear resistance.

[0051] Specifically, such as Figure 7 As shown, the grinding wheel 21 in this embodiment of the present invention includes a wheel axle 212, a wheel rim 213, and an annular groove 214 circumferentially defined between the wheel axle 212 and the wheel rim 213. Both the annular groove 214 and the wheel rim 213 are provided with a frosted layer. The grinding wheel 21 in this embodiment has a large grinding surface to improve the efficiency of grinding waste sand.

[0052] Specifically, the waste sand regeneration grinding device of the embodiment of the present invention also includes a number of flange covers and bearings, wherein: the inner ring of the bearing is fixedly connected to the rotating shaft; the flange cover is sleeved on the outer ring of the bearing, and the flange cover is fixedly connected to the outer ring of the bearing, and the flange cover is fixed to the outer ring of the bearing. The flange cover is fixed to the housing 11. This embodiment exemplifies a mounting method between the rotating shaft 32 and the housing 11, whereby the rotating shaft 32 can rotate relative to the housing 11 through the flange cover and the bearing, and the housing 11 can provide a load-bearing effect on both ends of the rotating shaft 32. This embodiment does not specifically limit the size of the flange cover and the bearing, and the design is specifically based on the shaft diameter of the rotating shaft 32. Preferably, the housing 11, the flange cover, the bearing and the rotating shaft 32 are relatively sealed to prevent waste sand from leaking during the grinding process and causing waste.

[0053] Specifically, the waste sand regeneration and grinding device according to the present embodiment further includes a dust cover, the shape of which matches the overall shape of the motor 31, the tapered sleeve pulley, the shaft end baffle, and the belt. The dust cover in this embodiment protects the key transmission components of the power assembly 3 from dust, preventing dust accumulation on the motor 31, the tapered sleeve pulley, the shaft end baffle, and the belt after prolonged operation, which could affect the transmission efficiency from the motor 31 to the rotating shaft 32, thereby ensuring smooth waste sand grinding.

[0054] The waste sand regeneration and grinding device of the present invention divides the box body from top to bottom into a dust collecting area, a grinding area and an impurity collection area. The grinding area is provided with several parallel rotating shafts that drive several grinding wheels installed thereon to grind the waste sand. The generated dust enters the dust collecting area, and impurities with too small particle size enter the impurity collection area. The ground sand material is discharged from the discharge port, achieving a good waste sand grinding effect. The original residue on the sand material is effectively removed, and the sand material is recycled and reused; at the same time, the partition forms a longer grinding path to produce a better grinding effect, and can also adaptively reduce the volume of the device, saving factory space.

[0055] The present invention is further described above with the help of specific implementation methods, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above implementation methods by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A waste sand regeneration grinding device, characterized in that: It includes a box body, a grinding assembly located inside the box body, a power assembly connected to the grinding assembly, and a feed port and a discharge port respectively arranged on both sides of the box body, wherein: The box body includes a shell, a motor fixing base fixed to the shell, a plurality of folding plates installed horizontally at the upper part of the shell, and a screen installed horizontally at the lower part of the shell, wherein the folding plates and the screen divide the shell from top to bottom into a dust collection area, a grinding area, and an impurity collection area; The folding plate is a plane structure, tilted at a certain angle, and several folding plates are parallel to each other, presenting a horizontal barrier surface; The power assembly includes a plurality of motors mounted on the motor fixing seat, and a plurality of rotating shafts with one end connected to the motor in a transmission manner, wherein the rotating shafts are parallel to each other and pass through the grinding area; The grinding assembly includes a plurality of grinding wheels with mounting holes in the center, and the grinding wheels are fixedly sleeved on the rotating shaft; The grinding device also includes a plurality of partitions vertically installed in the grinding area, wherein: The partition plate and the rotating shaft are spaced apart and parallel to each other. A first material passing port is provided on the partition, and the first material passing ports on a plurality of partitions form a "bow"-shaped sand material conveying route with the feed port and the discharge port; It also includes a plurality of manhole assemblies mounted on the housing, the manhole assemblies including a manhole cover, a plurality of locking plates and a plurality of hand wheels having the same number as the locking plates, wherein: The shell is provided with a plurality of openings corresponding to the manhole covers; One side of the manhole cover is rotatably connected to the housing, and the manhole cover covers the outside of the opening; One end of the locking piece is fixed to the edge of the manhole cover, and the other end is provided with a sliding groove; The hand wheel is slidably mounted on the housing through the sliding groove; It also includes a number of reinforcing plates that match the number of the partitions, and a second feed port is provided on the reinforcing plates, wherein: The reinforcing plate is fixedly mounted on the partition plate, and the size of the second material passing port is greater than or equal to the first material passing port.

2. The waste sand regeneration grinding device according to claim 1, characterized in that: The manhole assembly is divided into a dust collection area manhole, a grinding area manhole and an impurity collection area manhole.

3. The waste sand regeneration grinding device according to claim 1, characterized in that: The air outlet assembly further comprises an air door, a air door shaft fixed to the air door, and a handle connected to one end of the air door shaft, wherein: The top of the shell is provided with an air outlet that matches the size of the air door; The damper shaft is arranged to pass through the air outlet.

4. The waste sand regeneration grinding device according to claim 1, characterized in that: The power assembly further includes a tapered sleeve pulley, a shaft end baffle and a belt, wherein: The shaft end baffle is fixed to one end of the rotating shaft adjacent to the motor; The tapered sleeve pulley is stopped at the shaft end baffle and is sleeved on the rotating shaft; The output end of the motor drives the cone sleeve pulley and the rotating shaft to rotate synchronously through the belt.

5. The waste sand regeneration grinding device according to claim 1, characterized in that: The grinding wheel comprises a wheel shaft, a wheel rim and an annular groove circumferentially arranged between the wheel shaft and the wheel rim. The surfaces of the annular groove and the wheel rim are both provided with a frosting layer.

6. The waste sand regeneration grinding device according to claim 1, characterized in that: It also includes several flange covers and bearings, including: The bearing inner ring is fixedly connected to the rotating shaft; The flange cover is sleeved on the bearing outer ring, and the flange cover is fixedly connected to the bearing outer ring, and the flange cover is fixed on the housing.

7. The waste sand regeneration grinding device according to claim 4, characterized in that: It also includes a dustproof protective cover, the shape of which matches the overall shape of the motor, the tapered sleeve pulley, the shaft end baffle and the belt.

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