CN108746486B - Inorganic binder waste sand crushing, filtering and regenerating device - Google Patents

Abstract

The invention relates to the technical field of waste sand regeneration, and particularly discloses an inorganic binder waste sand crushing, filtering and regenerating device which comprises a screening and stirring mechanism, a sand material collecting mechanism and a bottom plate, wherein the screening and stirring mechanism and the sand material collecting mechanism are positioned above the bottom plate, and the inorganic binder waste sand crushing, filtering and regenerating device comprises: the screening and stirring mechanism comprises a sand charging barrel, a screening and stirring device, a screening and driving device and a stirring and driving device; the sand material collecting mechanism comprises a first box body, the first box body is positioned at the lower part of the sand material barrel and is fixedly arranged on the bottom plate, and the upper part of the first box body is communicated with the lower part of the sand material barrel. The device for crushing, filtering and regenerating the inorganic binder waste sand is simple in structure, easy to realize, better in sand material treatment effect than the existing product, capable of saving sand material resources to a great extent and realizing reutilization of the waste sand.

Description

An inorganic binder waste sand crushing, filtering and regeneration device

Technical Field

The invention relates to the technical field of waste sand regeneration, in particular to a device for crushing, filtering and regenerating inorganic binder waste sand.

Background technique

my country is a major country producing castings, among which sand casting accounts for the vast majority of the foundry industry. However, the production of qualified castings currently brings about a large amount of waste sand. The current waste sand utilization rate is only 20-30%. The unused waste sand not only pollutes the environment but also wastes resources. Most of the existing waste sand treatment devices are complex and have poor treatment effects. The obtained regenerated sand has a high impurity content and can only be used to produce castings with low dimensional accuracy requirements. Especially when grinding and reusing larger particle size waste sand, the grinding process is complicated, and some are still operated manually, which is cumbersome and difficult to meet the use requirements.

Summary of the invention

In view of the technical problem that the waste sand treatment effect in the prior art is not good, the present invention provides an inorganic binder waste sand crushing, filtering and regeneration device.

A device for crushing, filtering and regenerating waste sand with an inorganic binder comprises a screening and stirring mechanism, a sand collecting mechanism and a bottom plate, wherein the screening and stirring mechanism and the sand collecting mechanism are located above the bottom plate, wherein: the screening and stirring mechanism comprises a sand barrel, a screening and stirring device, a screening transmission device and a stirring transmission device; the upper portion of the sand barrel is open; the screening and stirring device is located in the sand barrel, and the sand is located above the screening and stirring device; the screening and stirring device is rotatably connected to the stirring transmission device, and the stirring transmission device drives the screening and stirring device to rotate in the sand barrel; the stirring transmission device is movably mounted on the screening transmission device, and the screening transmission device drives the stirring transmission device and the screening and stirring device to synchronously reciprocate; the sand collecting mechanism comprises a first box body, the first box body is located at the lower portion of the sand barrel and is fixedly mounted on the bottom plate, and the upper portion of the first box body is connected to the lower portion of the sand barrel.

Furthermore, the sand collecting mechanism also includes a collecting transmission device, a circular box body and a second box body, wherein: the second box body is located at the lower part of the side of the sand barrel and is fixedly installed on the bottom plate; the circular box body includes a box body bottom surface and a box body side surface; an opening with the same cross-sectional shape as the sand barrel is opened in the middle position of the box body bottom surface, the box body bottom surface is tiltedly sleeved on the sand barrel, and the lower point is located directly above the second box body; a discharge port is opened on the side of the box body directly above the second box body; the screening transmission device is installed on the collecting transmission device, and the collecting transmission device drives the screening transmission device, the stirring transmission device, and the screening and stirring device to move upward to discharge the sand from the sand barrel.

Furthermore, the collecting transmission device includes a stepping motor, a column, a first vertical rod, a second vertical rod, a cross rod, a lead screw and a nut, wherein: the column is fixed on the base plate and is provided with a vertical blind groove; one end of the cross rod is fixed to the first vertical rod, and the other end is fixed to the second vertical rod; the other end of the first vertical rod is inserted into the blind groove and slides up and down along the blind groove; the other end of the second vertical rod is fixed to the nut; the nut is sleeved on the lead screw; the lead screw 226 is rotatably connected to the stepping motor; the stepping motor is fixed to the base plate; the stepping motor drives the second vertical rod, the cross rod and the first vertical rod to move up and down as a whole, thereby driving the screening transmission device, the stirring transmission device and the screening and stirring device to move up and down.

Furthermore, the screening transmission device includes a servo motor and a horizontally installed shaped rod, wherein: the servo motor is fixedly mounted on the first vertical rod; one end of the shaped rod is rotatably connected to the output end of the servo motor, and the other end is sleeved on the second vertical rod; the stirring transmission device is movably mounted between two bends of the shaped rod; the rotation of the shaped rod drives the stirring transmission device to reciprocate.

Furthermore, the stirring transmission device includes a coaxial motor and a sleeve, wherein: the outside of the sleeve is fixedly installed on the outside of the coaxial motor, the sleeve is arranged between two bending parts of the shaped rod, and can rotate relative to the shaped rod; the output end of the coaxial motor is rotatably connected to the screening and stirring device.

Furthermore, the screening and stirring device includes a rotating shaft, a screening frame and a plurality of stirring rods, wherein: one end of the rotating shaft is rotatably connected to the stirring transmission device, and the other end is fixedly mounted on the screening frame; the screening frame includes a circular block, at least two support rods and a screen, the support rods are annularly fixed at equal intervals on the sides of the circular block, the screen is fixed between the support rods, and the edge of the screening frame is close to the inner wall of the sand barrel; and the plurality of stirring rods are respectively fixed on the support rods.

Furthermore, at least two positioning devices located in the same horizontal plane are provided at the middle positions on both sides of the sand material barrel, wherein: the positioning device includes an insert rod, a block, a push rod, a sleeve, a connecting rod and a bolt; a through hole matching the size of the insert rod is provided on the side wall of the sand material barrel, one end of the insert rod is inserted into the through hole, and the other end is fixed to one side of the block located outside the sand material barrel, a push rod is fixed to the other side of the block, a sleeve is sleeved on the push rod and slidably connected to the push rod, the sleeve is fixed to the sand material barrel through the connecting rod, and the bolt passes through the sleeve to tighten the push rod; the insert rod protrudes from the inner wall of the sand material barrel to limit the downward movement of the screening and stirring device.

Furthermore, the collection transmission device also includes a cushion block and a shell, wherein: the stepper motor is fixedly installed above the shell, and the cushion block is fixedly installed between the bottom of the shell and the base plate; the lead screw is installed through the shell; the nut is located in the shell, and the side of the nut moves up and down close to the inner wall of the shell.

Furthermore, the screening transmission device also includes a limit device located at one end of the several-shaped rod, the limit device includes a horizontal plate fixed on the second vertical rod, and a limit rod fixed on the several-shaped rod, wherein: the lower surface of the horizontal plate is provided with an arc-shaped groove matching the size of the limit rod, and the servo motor drives the limit rod and the several-shaped rod to rotate synchronously.

Furthermore, the support rods are fixed on the side of the circular block in an annular manner and equidistantly downward, and the stirring rods are fixed on the support rods in a horizontal manner and equidistantly.

The inorganic binder waste sand crushing, filtering and regenerating device of the embodiment of the present invention realizes the screening and stirring of sand material through a screening and stirring mechanism composed of a sand material cylinder, a screening and stirring device, a screening transmission device and a stirring transmission device, collects the processed sand material through a sand material collecting mechanism, and the processed sand material completely strips off the dust and inorganic binder attached to the sand particles. The whole device has a simple structure and is easy to implement. The processing effect of sand material is better than that of existing products, which greatly saves sand material resources and realizes the reuse of waste sand.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

FIG1 is a schematic structural diagram of an inorganic binder waste sand crushing, filtering and regeneration device according to an embodiment of the present invention;

FIG2 is a top view of a screening frame of an inorganic binder waste sand crushing, filtering and regeneration device according to an embodiment of the present invention;

FIG3 is a partial enlarged view of point A in FIG1;

Among them: 1-screening and stirring mechanism, 11-sand barrel, 111-positioning device, 1111-insertion rod, 1112-block, 1113-push rod, 1114-sleeve, 1115-connecting rod, 1116-bolt, 112-through hole, 12-screening and stirring device, 121-rotating shaft, 122-screening frame, 1221-round block, 1222-support rod, 1223-screen, 123-stirring rod, 13-screening transmission device, 131-servo motor, 132-shaped rod, 133- Limiting device, 1331- horizontal plate, 1332- limiting rod, 14- stirring transmission device, 141- coaxial motor, 142- sleeve, 2- sand collecting mechanism, 21- first box body, 22- collecting transmission device, 221- stepping motor, 222- column, 223- first vertical rod, 224- second vertical rod, 225- horizontal rod, 226- lead screw, 227- nut, 228- pad, 229- shell, 23- circular box body, 231- discharge port, 24- second box body, 3- bottom plate.

Detailed ways

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 described embodiments 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 creative work belong to the protection scope of the present invention.

An inorganic binder waste sand crushing, filtering and regeneration device according to an embodiment of the present invention, as shown in FIG1, comprises a screening and stirring mechanism 1, a sand material collecting mechanism 2 and a bottom plate 3, wherein the screening and stirring mechanism 1 and the sand material collecting mechanism 2 are located above the bottom plate 3, wherein the screening and stirring mechanism 1 comprises a sand material barrel 11, a screening and stirring device 12, a screening transmission device 13 and a stirring transmission device 14; the sand material barrel 11 has an opening at the top, and the sand material enters the sand material barrel 11 from here; the screening and stirring device 12 is located in the sand material barrel 11, and the sand material is located above the screening and stirring device 12, and the screening and stirring transmission device 14 is provided. The device 12 is rotatably connected with the stirring transmission device 14, and the stirring transmission device 14 drives the screening stirring device 12 to rotate in the sand barrel 11 to break the agglomerated sand; the stirring transmission device 14 is movably installed on the screening transmission device 13, and the screening transmission device 13 drives the stirring transmission device 14 to reciprocate synchronously with the screening stirring device 12. When the screening transmission device 13 is working, the stirring transmission device 14 can be closed, and only plays the connecting function between the screening stirring device 12 and the screening transmission device 13, and the screening and stirring processes of the sand are separated. The sand collection mechanism 2 includes a first box body 21, which is located at the lower part of the sand barrel 11 and fixedly installed on the bottom plate 3. The upper part of the first box body 21 is connected to the lower part of the sand barrel 11, and the crushed sand falls from the screening stirring device 12 and enters the first box body 21. In the inorganic binder waste sand crushing, filtering and regeneration device of the embodiment of the present invention, the specific transmission mode of the screening transmission device 13 and the stirring transmission device 14 is not limited. Preferably, it is realized by motor drive. The present embodiment does not limit the shape, size, material, etc. of the sand barrel 11 and the first box 21, and the sand barrel 11 and the first box 21 are designed according to the use environment. Preferably, the cross section of the sand barrel 11 is circular, and the lower part is funnel-shaped. In the present embodiment, the screening and stirring device 12 is driven by the screening transmission device 13 and the stirring transmission device 14 to achieve the screening and stirring of the sand. Compared with the prior art, there is no need to separately set up a structure specifically used for stirring and a structure specifically used for screening, so that the structure of the entire device is more compact, and the sand material processing efficiency is also higher than that of the existing products.

Specifically, the sand material collection mechanism 2 of the embodiment of the present invention further comprises a collection transmission device 22, a circular box body 23 and a second box body 24, wherein the second box body 24 is located at the lower part of the side of the sand material barrel 11 and is fixedly mounted on the bottom plate 3; the circular box body 23 comprises a box body bottom surface and a box body side surface; an opening having the same cross-sectional shape as the sand material barrel 11 is provided in the middle of the box body bottom surface, the box body bottom surface is obliquely sleeved on the sand material barrel 11, and the lower part is located directly above the second box body 24; a discharge port 231 is provided on the box body side surface directly above the second box body 24, and the circular box body 23 is obliquely mounted on the sand material barrel 11. When the sand material in the sand material barrel 11 is discharged from the upper part, the circular box body collects all the sand material, and all of the sand material flows into the second box body 24 through the discharge port 231. The screening transmission device 13 is mounted on the collection transmission device 22, and the collection transmission device 22 drives the screening transmission device 13, the stirring transmission device 14, and the screening stirring device 12 to move upwards and discharge the sand material from the sand material barrel 11. Preferably, the cross-sectional shape of the sand barrel 11 in this embodiment is circular, and concentric holes are provided on the bottom surface of the circular box body 23, so that the sand can fall completely into the circular box body 23 when discharged, and avoid being scattered outside. Preferably, the width of the discharge port 231 is smaller than the diameter of the second box body 24. In this embodiment, the size and material of the second box body 24 are not specifically limited, as long as the function of collecting sand can be achieved.

Specifically, as shown in Figure 1, the collecting transmission device 22 of the embodiment of the present invention includes a stepping motor 221, a column 222, a first vertical rod 223, a second vertical rod 224, a cross bar 225, a lead screw 226 and a nut 227, wherein the column 222 is fixed on the bottom plate 3 and is provided with a blind groove in the vertical direction; one end of the cross bar 225 is fixed to the first vertical rod 223, and the other end is fixed to the second vertical rod 224; the other end of the first vertical rod 223 is inserted into the blind groove and slides up and down along the blind groove; the other end of the second vertical rod 224 is fixed to the nut 227; the nut 227 is sleeved on the lead screw 226; the lead screw 226 is rotatably connected to the stepping motor 221; the stepping motor 221 is fixed on the bottom plate 3; the stepping motor 221 drives the second vertical rod 224, the cross bar 225, and the first vertical rod 223 to move up and down as a whole, thereby driving the screening transmission device 13, the stirring transmission device 14, and the screening and stirring device 12 to move up and down. When the stepper motor 221 rotates, it drives the lead screw 226 to rotate. However, since the nut 227 is fixed to the second vertical rod 224 as a whole, and the second vertical rod 224 is fixed to the cross bar 225 and the first vertical rod 223 as a whole, and one end of the first vertical rod 223 is inserted into the blind groove, the nut 227 will only move relatively along the lead screw 226. When the nut 227 moves up and down along the lead screw 226, the second vertical rod 224, the cross bar 225, and the first vertical rod 223 move up or down at the same time, driving the screening transmission device 13, the stirring transmission device 14, and the screening stirring device 12 to move up and down together. After the screening stirring device 12 moves upward to a certain position, it is flush with the opening on the sand material barrel 11. The sand material located on the upper part of the screening stirring device 12 is discharged from the sand material barrel 11, and then enters the second box body 24 through the circular box body 23. In this embodiment, the specific models of the lead screw 226 and the nut 227 are not limited. The length of the lead screw 226 depends on the production requirements, but its length should not be less than the distance from the lowest end of the screening and stirring device 12 to the top of the sand barrel 11. In the embodiment of the present invention, other transmission methods can also be used to realize the upward or downward movement of the entire collection transmission device 22, such as fixing the second cross bar on a conveyor belt or crawler in the vertical direction, and the conveyor belt or crawler is driven by a motor to move to achieve the design purpose of this solution, or a hydraulic device can be used to achieve it.

Specifically, as shown in Figure 1, the screening transmission device 13 of this embodiment includes a servo motor 131 and a horizontally installed shaped rod 132, wherein the servo motor 131 is fixedly installed on the first vertical rod 223; one end of the shaped rod 132 is rotatably connected to the output end of the servo motor 131, and the other end is sleeved on the second vertical rod 224; the stirring transmission device 14 is movably installed between the two bends of the shaped rod 132; the shaped rod 132 rotates to drive the stirring transmission device 14 to reciprocate, and the stirring transmission device 14 is connected to the screening and stirring device 12 as a whole, so the screening transmission device 13 can drive the screening and stirring device 12 to reciprocate in the sand barrel 11. Due to the limitation of the wall of the sand barrel 11, the movement mode of the screening and stirring device 12 is closer to vibration, thereby accelerating the screening of the sand material. The present embodiment does not limit the working parameters and product model of the servo motor 131, and it only needs to be able to drive the Ji-shaped rod 132 to rotate; the shape of the Ji-shaped rod 132 is similar to the shape of the Chinese character "几", and has two bends in the middle. The present embodiment does not limit the material, thickness, length, etc. of the Ji-shaped rod 132, and it only needs to achieve the purpose of the design of this embodiment.

Specifically, the stirring transmission device 14 includes a coaxial motor 141 and a sleeve 142, wherein the outer portion of the sleeve 142 is fixedly installed with the outer portion of the coaxial motor 141, and the sleeve 142 is sleeved between the two bends of the several-shaped rod 132, and can rotate relative to the several-shaped rod 132; the output end of the coaxial motor 141 is rotatably connected to the screening and stirring device 12. The inner diameter of the sleeve 142 is larger than the outer diameter of the several-shaped rod 132, so that when the several-shaped rod 132 rotates, the coaxial motor 141 fixedly connected to the sleeve 142 can always be vertically downward due to gravity. The output end of the coaxial motor 141 is rotatably connected to the screening and stirring device 12. When the coaxial motor 141 rotates, it drives the screening and stirring device 12 to rotate in the sand barrel 11 to achieve stirring of the sand. This embodiment does not limit the working parameters and product parameters of the coaxial motor 141, and only needs to achieve the design requirements of this embodiment. The material and diameter of the sleeve 142 are not specifically limited in this embodiment. Preferably, a bearing is installed between the sleeve 142 and the rod 132, so that the ball sliding resistance is smaller and the noise during equipment production can be reduced.

Specifically, as shown in Figure 2, the screening and stirring device 12 includes a rotating shaft 121, a screening frame 122 and a plurality of stirring rods 123, wherein: one end of the rotating shaft 121 is rotatably connected to the stirring transmission device 14, and the other end is fixedly installed on the screening frame 122; the screening frame 122 includes a circular block 1221, at least two support rods 1222 and a screen 1223, the support rods 1222 are fixed in an annular manner and equidistantly on the side of the circular block 1221, the screen 1223 is fixed between the support rods 1222, and the edge of the screening frame 122 is close to the inner wall of the sand barrel 11. Preferably, in this embodiment, a sand material barrel 11 with a circular cross section is selected, and the screening and stirring device 12 includes four support rods 1222, which are welded on the circular block 1221 at a difference of ninety degrees in sequence to form a "cross" structure. A screen 1223 is fixed between the support rods 1222 and the support rods 1222, and a screening frame 122 with the same cross-sectional shape as the sand material barrel 11 and slightly smaller is also formed. The edge of the screening frame 122 is close to the inner wall of the sand material barrel 11 to prevent the block sand from falling into the first box 21 below the sand material barrel 11 without screening and stirring. In this embodiment, multiple stirring rods 123 are respectively fixed on the support rods 1222. As shown in Figures 1 and 2, three stirring rods are fixed on each support rod 1222. In this embodiment, other numbers of support rods 1222 and other numbers of stirring rods 123 can also be set, all of which belong to the protection scope of this embodiment. In this embodiment, the material and size of the circular block 1221, the support rods 1222, and the stirring rod 123 are not specifically limited, and those skilled in the art can select them according to their experience. Preferably, the support rod 1222 in this embodiment is fixed on the side of the circular block 1221 in a circular manner with equal spacing and tilted downward, and the stirring rod 123 is fixed on the support rod 1222 with equal spacing and horizontally. The support rod 1222, the circular block 1221, and the screen 1223 form an inverted funnel shape, so that the sand can be screened more easily, and when the collecting transmission device 22 is working, when the screening and stirring device 12 is lifted to the opening of the sand barrel 11, the sand blocks that cannot be crushed can all fall into the circular box body 23, and no part of the sand blocks will be left in the sand barrel 11, affecting the next sand stirring and screening effect.

Specifically, as shown in Figures 1 and 3, at least two positioning devices 111 located in the same horizontal plane are provided at the middle positions of both sides of the sand material barrel 11 of this embodiment, wherein: the positioning device 111 includes an insertion rod 1111, a block 1112, a push rod 1113, a sleeve 1114, a connecting rod 1115 and a bolt 1116; a through hole 112 matching the size of the insertion rod 1111 is provided on the side wall of the sand material barrel 11, one end of the insertion rod 1111 is inserted into the through hole 112, and the other end is fixed to one side of the block 1112 located outside the sand material barrel 11, a push rod 1113 is fixed to the other side of the block 1112, a sleeve 1114 is sleeved on the push rod 1113 and slidably connected thereto, the sleeve 1114 is fixed to the sand material barrel 11 through the connecting rod 1115, and the bolt 1116 passes through the sleeve 1114 to tighten the push rod 1113; the insertion rod 1111 protrudes from the inner wall of the sand material barrel 11 to limit the downward movement of the screening and stirring device 12. The positioning device 111 of the embodiment of the present invention may also be provided with one, but the effect achieved is far less than that of the positioning devices 111 of more than two. Preferably, three positioning devices 111 are provided at an angle of one hundred and twenty degrees in sequence to ensure that the screening and stirring device 12 rotates on a horizontal plane. The height at which the positioning device 111 is set on the sand barrel 11 is not limited in this embodiment, and can be reasonably designed depending on the length of the screening and stirring device 12, the height of the screening transmission device 13, etc. Preferably, a sealing ring is embedded in the through hole 112 on the inner wall of the sand barrel 11 to prevent the sand from leaking out from here. This embodiment can also design other types of positioning methods, as long as there is a structure similar to that of the insertion rod 1111 protruding from the wall of the sand barrel 11. The setting of the positioning device 111 can make the screening and stirring device 12 more stable when rotating, minimize the collision with the wall of the sand barrel 11, and thus achieve a better effect of stirring and screening.

Specifically, the collection transmission device 22 in this embodiment further includes a cushion block 228 and a housing 229, wherein: the stepper motor 221 is fixedly installed above the housing 229, the cushion block 228 is fixedly installed between the housing 229 and the bottom plate 3 below; the lead screw 226 is installed through the housing 229; the nut 227 is located in the housing 229, and the side of the nut 227 is close to the inner wall of the housing 229 and moves up and down. The side of the nut 227 is close to the inner wall of the housing 229, and when the stepper motor 221 rotates, the nut 227 can stably rise or fall without rotating, making the operation of the device more reliable and safe.

Specifically, the screening transmission device 13 of the present embodiment further includes a limiting device 133 located at one end of the several-shaped rod 132, and the limiting device 133 includes a horizontal plate 1331 fixed on the second vertical rod 224, and a limiting rod 1332 fixed on the several-shaped rod 132, wherein: the lower surface of the horizontal plate 1331 is provided with an arc-shaped groove matching the size of the limiting rod 1332, and the servo motor 131 drives the limiting rod 1332 to rotate synchronously with the several-shaped rod 132. Preferably, movable limiting blocks are installed at both ends of the arc-shaped groove, and when the limiting rod 1332 is located in the arc-shaped groove, the limiting blocks are inserted into the two ends of the arc-shaped groove to prevent the several-shaped rod 132 from accidentally sliding and causing the limiting rod 1332 to slide out of the arc-shaped groove, thereby affecting production. When the sand material screening is completed, the servo motor 131 is stopped when the limit rod 1332 is located in the arc groove, and then the coaxial motor 141 is turned on. The screening transmission device 13 is stable and firm due to the setting of the limit device 133, and will not be affected by the operation of the stirring transmission device 14.

The present invention does not limit the specific product parameters of the stepper motor 221, servo motor 131, coaxial motor 141, etc. in this embodiment, and those skilled in the art can select appropriate ones according to their work experience. Their power supply method is also not limited in this embodiment, and the method adopted in the prior art, such as connecting to a battery or industrial power supply, etc.

The working process of the embodiment of the present invention is as follows:

(1) Sand screening: Start the servo motor 131 to drive the shape rod 132 to rotate, thereby driving the stirring transmission device 14 to reciprocate, and the screening and stirring device 12 shakes up and down inside the sand barrel 11, pouring sand into the sand barrel 11 for screening, and fine sand falls from the upper part of the screening frame 122, and larger sand or impurities remain in the upper part of the screening frame 122; after the screening is completed, when the limit rod 1332 enters the arc groove, the servo motor 131 is turned off.

(2) Sand material stirring: Push the push rod 1113 toward the sand material barrel 11, the push rod 1113 slides on the sleeve 1114 and drives the block 1112 and the plug rod 1111 to move, the plug rod 1111 is inserted into the sand material barrel 11, the block 1112 plays a limiting role, tighten the bolt 1116, the sealing ring plays a sealing role, and the lower end of the screening and stirring device 12 is attached to the upper end of the plug rod 1111. Start the coaxial motor 141 to drive the rotating shaft 121 to rotate, and the rotating shaft 121 drives the screening frame 122 to rotate, breaking or dispersing the agglomerated sand material, and some fine sand falls into the first box body 21 through the screening frame 122.

(3) Sand discharge: Turn on the stepper motor 211; the stepper motor 211 rotates, driving the lead screw 226 to rotate. Due to the position limitation of the nut 227, it can only move upward along the lead screw 226, driving the second vertical rod 224, the horizontal rod 225, and the first vertical rod 223 to move upward. The screening frame 122 moves upward synchronously, transporting the remaining sand on its upper part upward, and finally discharging it from the sand barrel 11.

The above-mentioned screening, mixing and discharging of the sand material are three independent operation processes. The production personnel can select the corresponding operation process to process the sand material according to the actual situation, and this embodiment does not make any specific limitation.

The inorganic binder waste sand crushing, filtering and regenerating device of the embodiment of the present invention realizes the screening and stirring of sand by a screening and stirring mechanism composed of a sand barrel, a screening and stirring device, a screening transmission device and a stirring transmission device, and collects the processed sand by a sand collecting mechanism. The entire device has a simple structure and is easy to implement. The sand processing effect is better than that of existing products, which saves sand resources to a great extent and realizes the reuse of waste sand.

The present invention is further described above with the aid of specific embodiments. However, 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 embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims (8)

1. An inorganic binder waste sand crushing, filtering and regenerating device, characterized in that it comprises a screening and stirring mechanism (1), a sand material collecting mechanism (2) and a bottom plate (3), wherein the screening and stirring mechanism (1) and the sand material collecting mechanism (2) are located above the bottom plate (3), wherein: the screening and stirring mechanism (1) comprises a sand material barrel (11), a screening and stirring device (12), a screening transmission device (13) and a stirring transmission device (14); the sand material barrel (11) has an opening at the top; the screening and stirring device (12) is located in the sand material barrel (11), the sand material is located above the screening and stirring device (12), and the screening and stirring device (12) and the sand material are connected to each other. The stirring transmission device (14) is rotatably connected, and the stirring transmission device (14) drives the screening stirring device (12) to rotate in the sand material barrel (11); the stirring transmission device (14) is movably installed on the screening transmission device (13), and the screening transmission device (13) drives the stirring transmission device (14) and the screening stirring device (12) to reciprocate synchronously; the sand material collecting mechanism (2) comprises a first box body (21), the first box body (21) is located at the lower part of the sand material barrel (11) and is fixedly installed on the bottom plate (3), and the upper part of the first box body (21) is connected to the lower part of the sand material barrel (11); The screening and stirring device (12) comprises a rotating shaft (121), a screening frame (122) and a plurality of stirring rods (123), wherein: one end of the rotating shaft (121) is rotatably connected to the stirring transmission device (14), and the other end is fixedly mounted on the screening frame (122); the screening frame (122) comprises a circular block (1221), at least two support rods (1222) and a screen (1223), wherein the support rods (1222) are annularly fixed to the sides of the circular block (1221) at equal intervals, and the screen (1223) is fixed between the support rods (1222), and the edge of the screening frame (122) is adjacent to the inner wall of the sand material barrel (11); the plurality of stirring rods (123) are respectively fixed to the support rods (1222), and the support rods (1222), the circular block (1221) and the screen (1223) form an inverted funnel shape; The sand material collecting mechanism (2) further comprises a collecting transmission device (22), a circular box body (23) and a second box body (24), wherein: the second box body (24) is located at the lower part of the side of the sand material barrel (11) and is fixedly mounted on the bottom plate (3); the circular box body (23) comprises a box body bottom surface and a box body side surface; an opening having the same cross-sectional shape as the sand material barrel (11) is provided in the middle of the box body bottom surface; the box body bottom surface is obliquely sleeved on the sand material barrel (11), and the lower part is located directly above the second box body (24); a discharge port (231) is provided on the box body side surface located directly above the second box body (24); the screening transmission device (13) is mounted on the collecting transmission device (22), and the collecting transmission device (22) drives the screening transmission device (13), the stirring transmission device (14) and the screening stirring device (12) to move upwards, thereby discharging the sand material from the sand material barrel (11). 2. An inorganic binder waste sand crushing, filtering and regenerating device as claimed in claim 1, characterized in that the collecting transmission device (22) comprises a stepping motor (221), a column (222), a first vertical rod (223), a second vertical rod (224), a cross rod (225), a lead screw (226) and a nut (227), wherein: the column (222) is fixed on the bottom plate (3) and is provided with a blind groove in a vertical direction; one end of the cross rod (225) is fixed to the first vertical rod (223), and the other end is fixed to the second vertical rod (224); the other end of the first vertical rod (223) is inserted into the blind groove; The second vertical rod (224) is fixed with the nut (227) at the other end; the nut (227) is sleeved on the lead screw (226); the lead screw (226) is rotationally connected with the stepping motor (221); the stepping motor (221) is fixed on the bottom plate (3); the stepping motor (221) drives the second vertical rod (224), the cross rod (225) and the first vertical rod (223) to move up and down as a whole, thereby driving the screening transmission device (13), the stirring transmission device (14) and the screening stirring device (12) to move up and down. 3. An inorganic binder waste sand crushing, filtering and regeneration device as described in claim 2, characterized in that the screening transmission device (13) includes a servo motor (131) and a horizontally installed shaped rod (132), wherein: the servo motor (131) is fixedly installed on the first vertical rod (223); one end of the shaped rod (132) is rotatably connected to the output end of the servo motor (131), and the other end is sleeved on the second vertical rod (224); the stirring transmission device (14) is movably installed between the two bending parts of the shaped rod (132); the rotation of the shaped rod (132) drives the stirring transmission device (14) to reciprocate. 4. An inorganic binder waste sand crushing, filtering and regenerating device as described in claim 3, characterized in that the stirring transmission device (14) includes a coaxial motor (141) and a sleeve (142), wherein: the outside of the sleeve (142) is fixedly installed with the outside of the coaxial motor (141), and the sleeve (142) is sleeved between the two bending parts of the shaped rod (132) and can rotate relative to the shaped rod (132); the output end of the coaxial motor (141) is rotationally connected to the screening and stirring device (12). 5. An inorganic binder waste sand crushing, filtering and regenerating device as claimed in claim 4, characterized in that at least two positioning devices (111) located in the same horizontal plane are provided at the middle positions of both sides of the sand material barrel (11), wherein: the positioning device (111) comprises an insertion rod (1111), a block (1112), a push rod (1113), a sleeve (1114), a connecting rod (1115) and a bolt (1116); a through hole (112) matching the size of the insertion rod (1111) is provided on the side wall of the sand material barrel (11), and one end of the insertion rod (1111) is inserted into the through hole (112) The insert rod (1111) is inserted into the sand material barrel (11), and the other end is fixed to one side of the stopper (1112) located outside the sand material barrel (11); a push rod (1113) is fixed to the other side of the stopper (1112); the sleeve (1114) is sleeved on the push rod (1113) and is slidably connected thereto; the sleeve (1114) is fixed to the sand material barrel (11) through the connecting rod (1115); the bolt (1116) passes through the sleeve (1114) to tighten the push rod (1113); the insert rod (1111) protrudes out of the inner wall of the sand material barrel (11) to limit the downward movement of the screening and stirring device (12). 6. An inorganic binder waste sand crushing, filtering and regeneration device as described in claim 5, characterized in that the collection transmission device (22) also includes a cushion block (228) and a shell (229), wherein: the stepping motor (221) is fixedly installed above the shell (229), and the cushion block (228) is fixedly installed below the shell (229) and between the bottom plate (3); the lead screw (226) is installed through the shell (229); the nut (227) is located in the shell (229), and the side of the nut (227) moves up and down close to the inner wall of the shell (229). 7. An inorganic binder waste sand crushing, filtering and regenerating device as described in claim 6, characterized in that the screening transmission device (13) also includes a limiting device (133) located at one end of the several-shaped rod (132), and the limiting device (133) includes a horizontal plate (1331) fixed on the second vertical rod (224), and a limiting rod (1332) fixed on the several-shaped rod (132), wherein: the lower surface of the horizontal plate (1331) is provided with an arc-shaped groove matching the size of the limiting rod (1332), and the servo motor (131) drives the limiting rod (1332) to rotate synchronously with the several-shaped rod (132). 8. An inorganic binder waste sand crushing, filtering and regeneration device as described in claim 1, characterized in that the support rod (1222) is fixed on the side of the circular block (1221) in an annular manner and equidistantly and obliquely downward, and the stirring rod (123) is fixed on the support rod (1222) in a horizontal manner and equidistantly.