CN219540989U - Precious pearl sand sorting unit - Google Patents

Abstract

The utility model provides a device for separating foundry sand, which relates to the technical field of foundry sand recovery equipment and aims to solve the problem that a screen filtering device in the prior art cannot separate foundry sand from mixed sand of foundry sand and foundry sand with equivalent granularity. The device for separating the foundry sand from the foundry sand can effectively separate the foundry sand from the mixed sand of the common foundry sand and the foundry sand, so as to obtain the pure foundry sand.

Description

Precious pearl sand sorting unit

Technical Field

The utility model relates to the technical field of precious sand recovery equipment, in particular to a precious sand sorting device.

Background

The Baozhu sand is artificial synthetic sand which is prepared by taking high-quality bauxite as a raw material and through the processes of calcining, electric smelting, granulating, screening and the like. Compared with resin sand and sodium silicate sand, the environment-friendly casting sand has the advantages of high temperature resistance, no crushing, no dust, sphericity, high air permeability, good filling property, no dust hazard and the like, and is regarded as a new generation of environment-friendly casting sand. The Baozhu sand has the characteristics of excellent heat resistance and high strength, and is mainly applied to large-scale complex castings, such as engine water suites. At present, the market price of the Baozhu sand is more than 2000 yuan per ton and is far higher than that of common foundry sand; in order to control the cost, 20% -100% of the Baozhu sand is often added into the common foundry sand for improving the strength and the high temperature resistance, but not all the Baozhu sand is firstly used. At present, millions of tons of the baozu sand are consumed each year in China, and along with the accelerated popularization of green factories, the generated mixed used sand is more and more, and the waste sand is regenerated, so that the problem of solid waste discharge is solved, the baozu sand is screened out from the mixed used sand for reuse, the cost is reduced for casting enterprises, and direct economic benefits are created.

The utility model discloses a recovery processing device for pearl sand in patent CN 212418153U, including the support, the barrel, motor and (mixing) shaft, the barrel slope is installed on the support, the (mixing) shaft rotates to be installed in the barrel, and the one end of (mixing) shaft stretches out from the higher end of barrel and is connected with the output of motor, evenly install a plurality of stirring leaves along its axial on the surface of (mixing) shaft, the stirring leaf is the square board of difference in height, and the top of the square board of highest does not contact the internal surface of barrel, the both sides of square board are connected with a plurality of broken balls through the rope, the internal surface of barrel is provided with the friction surface, first order filter screen and second grade filter screen have been set gradually according to ejection of compact direction in the lower one end of barrel, this pearl sand recovery processing device's work efficiency is high, pearl sand quality after the recovery processing and result of use are better, staff's operation use of being convenient for. According to the device for recycling and treating the baozzle sand, the caked baozzle sand is crushed by utilizing the crushing ball, the adhesive on the surface of the baozzle sand is removed by utilizing the scraping plate, and finally, impurities can be separated from the treated baozzle sand by utilizing the first-stage filter screen and the second-stage filter screen; the used Baozhu sand is separated from the binder and a large amount of impurities.

Patent CN 217727042U discloses a waste separating device for producing foundry sand, comprising a screening mechanism and a separating mechanism; the screening mechanism comprises a screening box, a feed hopper, a screen, a partition plate, a waste discharging hopper, a frame and a discharging hopper, wherein the screening box is arranged above the frame, and the screen is obliquely arranged in the inner cavity of the screening box; the waste separating device firstly separates waste containing fiber impurities and large-particle slag materials from the precious sand through the screening mechanism, and then separates the fiber impurities from the waste through the separating mechanism, so that the fiber impurities and the large-particle slag materials can be prevented from being mixed together, and the subsequent recycling is affected. The separating device utilizes a screen to screen the foundry sand from the mixture of fiber sundries, large-particle slag and foundry sand.

The two kinds of recovery processing devices of the child sand are all separated from the child sand through the filter screen, but the child sand cannot be separated from the common foundry sand with the equivalent grain size, and the recovery efficiency of the mixed used sand is affected.

Disclosure of Invention

The utility model aims to provide a device for separating foundry sand, which solves the problem that the prior screen filter device cannot separate the foundry sand from the mixture sand of the foundry sand and the common foundry sand, and can effectively separate the foundry sand from the mixture sand of the common foundry sand and the foundry sand to obtain pure foundry sand.

The utility model provides a precious sand sorting device, which comprises a centrifugal sorting device and a multistage vibration sorting device, wherein the centrifugal sorting device comprises a centrifugal disc and a centrifugal driving mechanism, the centrifugal driving mechanism is connected with the centrifugal disc and can drive the centrifugal disc to rotate, the centrifugal disc is obliquely arranged, the vibration sorting device comprises a vibration plate and a vibration driving device, the vibration driving device is connected with the vibration plate and can drive the vibration plate to vibrate, the vibration plates of the multistage vibration sorting device are obliquely arranged, a feed inlet of the vibration plate of a first stage is arranged below a discharge outlet of the centrifugal disc, and a feed inlet of the vibration plate of a next stage is sequentially arranged below the discharge outlet of the vibration plate of a previous stage.

As a preferred aspect of the present utility model, the vibratory sorting apparatus further includes a tilting mechanism connected to the vibratory plate and capable of driving the vibratory plate to tilt to change a tilting direction of the vibratory plate.

As a preferable mode of the utility model, the turnover mechanism comprises a turnover shaft and a turnover cylinder, wherein the center of the bottom surface of the vibration plate is rotationally connected with the turnover shaft, one end of the turnover cylinder is connected with a connecting frame below the turnover shaft, and the other end of the turnover cylinder is hinged with the upper side of the vibration plate.

As a preferable mode of the utility model, the vibration plate is provided with a plurality of grooves which are arranged side by side, the grooves are arranged along the inclination direction of the vibration plate, and two ends of the grooves extend to the upper side edge and the lower side edge of the vibration plate respectively.

As a preferable aspect of the present utility model, the inclination angle of the centrifugal disk and the inclination angles of the plurality of vibration plates are each smaller than the stacking angle of the mixed sand to be separated.

As a preferable scheme of the utility model, the centrifugal driving mechanism comprises a gear motor and a belt, wherein a power output end of the gear motor is connected with a driving gear, a driven gear is connected at the center of the bottom surface of the centrifugal disc, and the belt is rotatably connected between the driving gear and the driven gear.

As a preferred embodiment of the utility model, a feed hopper is arranged on the centrifugal disk, and the feed hopper is arranged on one side of the centrifugal disk, which is away from a discharge hole of the centrifugal disk.

As a preferred embodiment of the present utility model, a scraper is provided at the lower side of the feed hopper, and the lower side of the scraper is disposed against the upper surface of the centrifugal disk.

As a preferable mode of the utility model, the vibrating separator further comprises a common sand storage bin, wherein the common sand storage bin is arranged below the vibrating separator, and a feed inlet of the common sand storage bin is correspondingly arranged below the vibrating plates.

As a preferable scheme of the utility model, the centrifugal separation device further comprises a support frame, wherein the support frame comprises a centrifugal frame and a vibration frame, the height of the centrifugal frame is higher than that of the vibration frame, the upper side of the vibration frame is arranged in a step shape from high to low, the centrifugal separation device is connected to the centrifugal frame, and a plurality of vibration separation devices are sequentially connected to the vibration frame from high to low through turnover shafts.

Compared with the prior art, the utility model has the following positive effects:

the utility model provides a ball sand sorting device, which comprises a centrifugal sorting device and a multistage vibration sorting device, wherein the centrifugal sorting device comprises a centrifugal disc and a centrifugal driving mechanism, the centrifugal driving mechanism is connected with the centrifugal disc and can drive the centrifugal disc to rotate, the centrifugal disc is obliquely arranged, the vibration sorting device comprises a vibrating plate and a vibration driving device, the vibration driving device is connected with the vibrating plate and can drive the vibrating plate to vibrate, the vibrating plates of the multistage vibration sorting device are obliquely arranged, wherein a feed inlet of the vibrating plate of a first stage is arranged below a discharge hole of the centrifugal disc, and a feed inlet of the vibrating plate of a next stage is sequentially arranged below a discharge hole of the vibrating plate of a previous stage. According to the device for separating the foundry sand, the mixture sand of the foundry sand and the foundry sand is poured onto the centrifugal disc in the process of separating the mixture sand, the centrifugal driving mechanism drives the centrifugal disc to rotate, and the mixture sand rotates along with the centrifugal disc. The vibration driving device drives the vibration plate to vibrate, so that sand moves forwards along the inclined direction of the vibration plate, and as the ball sand is spherical and the surface of the ball sand is smoother than that of the common casting sand, the ball sand moves faster, and then the ball sand enters the vibration sorting device of the next stage preferentially to perform vibration sorting, and the ball sand is fully separated from the common casting sand through multistage sorting, so that the pure ball sand can be obtained.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a baozzle sand separating device of the present utility model;

FIG. 2 is a schematic diagram of a centrifugal separator according to the present utility model;

FIG. 3 is a bottom view of the centrifugal separation device of the present utility model;

FIG. 4 is a schematic view of the structure of the upper side of the centrifugal disk in the present utility model;

FIG. 5 is a schematic view of the underside of the centrifugal disk of the present utility model;

FIG. 6 is a schematic diagram of a vibratory sorting apparatus according to the present utility model;

fig. 7 is a schematic view of the back side of the vibratory sorting apparatus according to the present utility model.

In the figure: 1. a centrifugal separation device; 11. a centrifugal disc; 12. a speed reducing motor; 13. a feed hopper; 14. a support rod; 15. a scraper; 16. a belt; 17. a drive gear; 18. a driven gear; 2. a vibration sorting device; 21. a vibration plate; 211. a groove; 22. a connecting plate; 23. a turnover shaft; 24. a turnover cylinder; 25. a vibration motor; 3. a common sand storage bin; 4. a support frame; 41. a centrifugal frame; 42. and a vibration frame.

Detailed Description

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front," "rear," "head," "tail," and the like are merely for convenience in describing and simplifying the utility model based on the orientation or positional relationship shown in the drawings and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

Example 1:

the embodiment provides a device for separating the baozzle sand, which is shown in fig. 1-7, and comprises a centrifugal separation device 1 and a multistage vibration separation device 2. The centrifugal separation device 1 includes a centrifugal disk 11 and a centrifugal drive mechanism, which is connected to the centrifugal disk 11 and is capable of driving the centrifugal disk 11 to rotate, and the centrifugal disk 11 is disposed obliquely. The vibration sorting device 2 includes a vibration plate 21 and a vibration driving device which is connected to the vibration plate 21 and is capable of driving the vibration plate 21 to vibrate, and the vibration plates of the multi-stage vibration sorting device are all inclined. Wherein, the feed inlet of the vibrating plate 21 of the first stage is arranged below the discharge port of the centrifugal disc 11, and the feed inlet of the vibrating plate 21 of the next stage is arranged below the discharge port of the vibrating plate 21 of the previous stage in sequence. The vibration driving means is a vibration motor 25 mounted on the bottom surface of the centrifugal disk 11.

The mixed sand of the mixed sand and ordinary foundry sand is poured into the centrifugal disc 11 by the mixed sand sorting device of the embodiment in the process of sorting the mixed sand, the centrifugal driving mechanism drives the centrifugal disc 11 to rotate, and the mixed sand rotates along with the centrifugal disc 11, so that the mixed sand is spherical, and the surface of the mixed sand is smoother than that of the ordinary foundry sand, the ordinary foundry sand is irregular and relatively worse in fluidity, so that the mixed sand is separated from the mixed sand in advance, and enters the vibration sorting device 2 through a discharge hole on the centrifugal disc 11. The vibration driving device drives the vibration plate 21 to vibrate, so that sand moves forwards along the inclination direction of the vibration plate 21, the surface of the sand is smoother than that of common foundry sand, so that the sand moves faster, and then the sand enters the vibration sorting device 2 of the next stage preferentially to perform vibration sorting, and the sand and the common foundry sand are fully separated through multi-stage sorting, so that pure sand can be obtained, the sand can be sorted out from the mixed sand of the sand with equivalent granularity and the common foundry sand, the separated sand can be reused, the production cost is reduced, and direct benefits are created for enterprises. In addition, this type of sorting device is simple in structure, and convenient to use and maintain.

Preferably, in the five-stage vibration sorting device 2 of the foundry sand sorting device in this embodiment, the mixed sand firstly utilizes the inclined rotating centrifugal disc 11 to perform preliminary sorting on the foundry sand, and then utilizes the plurality of inclined vibrating plates 21 to perform secondary sorting on the foundry sand, so that pure foundry sand is obtained, and the foundry sand sorted by the five-stage vibration sorting device 2 can reach higher purity.

In addition, the vibration sorting device 2 may be provided with six stages, seven stages, eight stages, and the like according to the condition of the mixed sand and the requirement of separating the purity of the baozzle sand.

Preferably, the vibratory sorting apparatus 2 further includes a tilting mechanism that is connected to the vibratory plate 21 and is capable of driving the vibratory plate 21 to tilt to change the tilting direction of the vibratory plate 21.

After the separation of the foundry sand in the batch of mixed sand is completed, the turnover mechanism of the multistage vibration separation device 2 turns over the vibration plate 21, so that the inclination directions of the vibration plate 21 are opposite, and the common foundry sand on the vibration plate 21 falls below the multistage vibration separation device 2, thereby being convenient for separate collection of the separated foundry sand and the common foundry sand.

Preferably, as shown in fig. 1 and 6, the tilting mechanism includes a tilting shaft 23 and a tilting cylinder 24, the center of the bottom surface of the vibration plate 21 is rotatably connected to the tilting shaft 23, one end of the tilting cylinder 24 is connected to a link under the tilting shaft 23 and the other end is hinged to the upper side of the vibration plate 21.

As shown in fig. 1, when the expansion end of the inversion cylinder 24 is extended, the inversion cylinder 24 supports the left side of the vibration plate 21, the vibration plate 21 is inclined downward from left to right, and when the expansion end of the inversion cylinder 24 is shortened, the inversion cylinder 24 pulls the left side of the vibration plate 21 downward, and the vibration plate 21 is inclined downward from right to left. When the foundry sand is sorted, the turning cylinder 24 is extended to incline the vibration plate 21 downward from left to right, pure foundry sand is collected under the vibration plate 21 on the rightmost side, and then the turning cylinder 24 is contracted to incline the vibration plate 21 in the inclined direction, the vibration plate 21 is inclined downward from right to left, and the retained normal foundry sand is poured down.

Preferably, as shown in fig. 6 and 7, a plurality of grooves 211 are provided side by side on the vibration plate 21, the grooves 211 are provided along an inclined direction of the vibration plate 21 and both ends of the grooves 211 extend to upper and lower side edges of the vibration plate 21, respectively. The lower side of the vibration plate 21 is connected with a connecting plate 22, and the overturning cylinder 24 and the overturning shaft 23 are connected with the vibration plate 21 through the connecting plate 22. The vibration plate 21 is in a folding fan shape, the grooves 211 enable sand to move along a fixed direction to play a role in drainage, and the upper surface of the vibration plate 21 is a friction surface to prevent the common foundry sand from moving too fast.

Preferably, the inclination angle of the centrifugal disk 11 and the inclination angle of the plurality of vibration plates 21 are smaller than the stacking angle of the mixed sand to be separated, so that the sand control agent may slip down under its own weight.

The centrifugal disc 11 comprises a circular plate and an edge side plate, the edge side plate is vertically connected to the periphery of the circular plate, and a discharge hole of the centrifugal disc 11 is a notch arranged on the edge side plate.

Preferably, the centrifugal driving mechanism comprises a gear motor 12 and a belt 16, a driving gear 17 is connected to the power output end of the gear motor 12, a driven gear 18 is connected to the center of the bottom surface of the centrifugal disc 11, and the belt 16 is rotatably connected between the driving gear 17 and the driven gear 18.

The driving gear 17 drives the driven gear 18 at the bottom of the centrifugal disc 11 to rotate through the belt 16 by the gear motor 12, and then drives the centrifugal disc 11 to rotate. The mixed sand falls on the centrifugal disc 11 from a feed inlet above the centrifugal disc 11, and the rotating centrifugal disc 11 brings the centrifugal force to the sand so that the sand moves away from the center of the centrifugal disc 11.

The centrifugal drive mechanism of the centrifugal separator 1 may be driven by a rack-and-pinion drive, a worm-and-gear drive, or the like.

Preferably, a feed hopper 13 is provided on the centrifugal disc 11, the feed hopper 13 being provided on the side of the centrifugal disc 11 facing away from the discharge opening of the centrifugal disc 11. The mixed sand falls onto the centrifugal disc 11 from the feed hopper 13 above the centrifugal disc 11, and the baozzle sand is separated by the rotation of the centrifugal disc 11 and falls onto the vibrating plate 21 of the vibration sorting device 2 through the discharge port of the centrifugal disc 11.

Preferably, a scraper 15 is provided at the underside of the feed hopper 13, the underside of the scraper 15 being arranged against the upper surface of the centrifugal disk 11. The scraping plate 15 is closely attached to the upper surface of the centrifugal disk 11 and is used for removing residues adhered to the centrifugal disk 11, so that the mixed sand can smoothly slide out of the centrifugal disk 11.

Preferably, the device for separating the baozzle sand in the embodiment further comprises a common sand storage bin 3, wherein the common sand storage bin 3 is arranged below the vibration separation device 2, and a feed inlet of the common sand storage bin 3 is correspondingly arranged below the plurality of vibration plates 21. The inlet of the normal sand storage bin 3 extends from the upper side of the topmost vibrating plate 21 to the upper side of the lowest vibrating plate 21. The normal sand storage bin 3 is used to collect normal foundry sand on the vibration plate 21 when the vibration plate 21 is turned upside down.

Preferably, the device for separating the baozzle sand in the embodiment further comprises a supporting frame 4, wherein the supporting frame 4 comprises a centrifugal frame 41 and a vibrating frame 42. The centrifugal frame 41 is higher than the vibrating frame 42 in height, the upper side of the vibrating frame 42 is arranged in a step shape from high to low, the centrifugal separation device 1 is connected to the centrifugal frame 41, and the plurality of vibration separation devices 2 are sequentially connected to the vibrating frame 42 from high to low through the turning shafts 23. The gear motor 12 is mounted on the centrifugal frame 41, and the lower side of the centrifugal disk 11 is connected to the centrifugal frame 41 through a support rod 14 to support and fix the centrifugal disk 11.

The device for separating the baozzle sand in the embodiment can be combined in the control system for regenerating the waste sand to realize linkage with sand regeneration, and the control program of the PLC for regenerating the waste sand is used for controlling the opening and closing of the device for separating the baozzle sand. The automatic sorting machine does not need manual operation, improves the automation degree of the production process, automatically controls the sorting of the baozzle sand, and stabilizes the sorting quality.

When the Baozhu sand sorting device in the embodiment is used, firstly, a power supply is turned on, so that the electric elements of the centrifugal sorting device 1 and the vibration sorting device 2 normally operate; then, a valve on a feed hopper 13 of the centrifugal separation device 1 is opened, so that mixed sand of one batch enters the centrifugal disc 11; after a batch of mixed sand completely enters the centrifugal disc 11, the feeding valve is closed; the mixed sand is initially selected in a centrifugal separation device 1; the sand grains after primary selection enter a vibration sorting device 2 for fine selection; the selected foundry sand enters a foundry sand bin, the vibrating plate 21 is turned over, and then the common foundry sand enters a common sand storage bin 3, and then the next batch of mixed sand is sorted.

The above description is only of the preferred embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept, and it is intended to cover the scope of the present utility model.

Claims (10)

1. The utility model provides a precious pearl sand sorting unit, its characterized in that, includes centrifugal sorting unit (1) and multistage vibration sorting unit (2), centrifugal sorting unit (1) include centrifugal disc (11) and centrifugal actuating mechanism, centrifugal actuating mechanism with centrifugal disc (11) are connected and can drive centrifugal disc (11) are rotatory, centrifugal disc (11) slope sets up, vibration sorting unit (2) include vibrating plate (21) and vibration actuating device, vibration actuating device with vibrating plate (21) are connected and can drive vibrating plate (21) vibration, multistage vibration sorting unit's vibrating plate all inclines to set up, wherein, the feed inlet of vibrating plate (21) of first grade set up in the below of the discharge gate of centrifugal disc (11), the feed inlet of vibrating plate (21) of next grade sets gradually in the below of the discharge gate of vibrating plate (21) of last grade.

2. The device according to claim 1, wherein the vibration sorting device (2) further comprises a turnover mechanism which is connected with the vibration plate (21) and can drive the vibration plate (21) to turn over so as to change the inclination direction of the vibration plate (21).

3. The device for separating the sand from the precious beads according to claim 2, wherein the turnover mechanism comprises a turnover shaft (23) and a turnover cylinder (24), the center of the bottom surface of the vibration plate (21) is rotationally connected with the turnover shaft (23), one end of the turnover cylinder (24) is connected with a connecting frame below the turnover shaft (23), and the other end of the turnover cylinder is hinged with the upper side of the vibration plate (21).

4. The device for separating the baozzle sand as claimed in claim 1, wherein a plurality of grooves (211) are arranged side by side on the vibrating plate (21), the grooves (211) are arranged along the inclined direction of the vibrating plate (21), and two ends of the grooves (211) extend to the upper side edge and the lower side edge of the vibrating plate (21) respectively.

5. The device according to claim 1, characterized in that the inclination angle of the centrifugal disk (11) and the inclination angle of the plurality of vibrating plates (21) are smaller than the stacking angle of the mixed sand to be separated.

6. The device for separating the baozzle sand according to claim 1 is characterized in that the centrifugal driving mechanism comprises a speed reducing motor (12) and a belt (16), a driving gear (17) is connected to a power output end of the speed reducing motor (12), a driven gear (18) is connected to the center of the bottom surface of the centrifugal disc (11), and the belt (16) is rotatably connected between the driving gear (17) and the driven gear (18).

7. The precious sand sorting device according to claim 1, characterized in that a feed hopper (13) is arranged on the centrifugal disc (11), the feed hopper (13) being arranged on the side of the centrifugal disc (11) facing away from the discharge opening of the centrifugal disc (11).

8. The precious sand sorting device according to claim 7, characterized in that a scraper (15) is arranged at the underside of the feed hopper (13), the underside of the scraper (15) being arranged against the upper surface of the centrifugal disc (11).

9. The precious sand sorting device according to claim 1, further comprising a common sand storage bin (3), wherein the common sand storage bin (3) is arranged below the vibration sorting device (2), and a feed inlet of the common sand storage bin (3) is correspondingly arranged below a plurality of vibration plates (21).

10. The device for separating the baozzle sand according to claim 1 is characterized by further comprising a supporting frame (4), wherein the supporting frame (4) comprises a centrifugal frame (41) and a vibrating frame (42), the centrifugal frame (41) is higher than the vibrating frame (42), the upper side of the vibrating frame (42) is arranged in a step shape from high to low, the centrifugal separation device (1) is connected to the centrifugal frame (41), and a plurality of the vibrating separation devices (2) are sequentially connected to the vibrating frame (42) from high to low through turnover shafts (23) respectively.