Sandstone separator

Abstract

The utility model provides a sandstone separator, which comprises a feed hopper, and also comprises a water spraying assembly, a material spreading rod and a driving assembly, one end of the water spraying assembly is fixedly arranged in the feed hopper and is far away from one side of a concrete outlet, and the water spraying assembly is used for spraying water towards the direction of the concrete outlet; the material spreading rod is arranged in the feeding hopper and is parallel to the hopper bottom of the feeding hopper, and the driving assembly is arranged between the material spreading rod and the water spraying assembly, is fixedly arranged on the inner side of the feeding hopper and is used for driving the material spreading rod to do horizontal reciprocating motion in the direction perpendicular to the water spraying direction of the water spraying assembly; concrete poured into the feeding hopper can be shared, the poured concrete can be diluted, a concrete layer subsequently falling on the vibrating screen is thin, the screening efficiency of the vibrating screen is greatly improved, and the problem that an existing sand and stone separator is low in efficiency when screening residual concrete is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete recycling equipment, in particular to a sand and gravel separator. Background Art

[0002] Sand and gravel separators are mainly used in the concrete recycling system of concrete mixing plants to separate and recycle the sand and stone from the residual or waste concrete. They usually separate gravel and other materials according to their size and weight by vibration or rotation.

[0003] The utility model with publication number CN213077684U discloses a sand and gravel separator, which includes an outer shell, a feed hopper is fixedly connected to the upper surface of the outer shell, the lower end surface of the feed hopper is connected to the outer shell, a rectangular vibrating screen plate is reciprocatingly and slidably connected in the outer shell, the vibrating screen plate is located below the feed hopper, and a plurality of vibrating screen holes are opened on the vibrating screen plate.

[0004] Residual concrete refers to the concrete remaining in the concrete tank after the concrete truck transports the concrete. As in the above-mentioned technical solution, when the concrete in the concrete tank is recovered, the concrete poured into the feed hopper tends to accumulate on the vibrating screen in large quantities, which will greatly reduce the screening efficiency of the vibrating screen. Utility Model Content

[0005] In view of this, the utility model proposes a sand and gravel separator, which can distribute the concrete poured into the feed hopper and dilute the poured concrete, so that the concrete layer subsequently falling on the vibrating screen is relatively thin, which greatly improves the screening efficiency of the vibrating screen and solves the problem of low efficiency of existing sand and gravel separators when screening concrete.

[0006] The technical solution of the utility model is achieved in this way:

[0007] The utility model provides a sand and gravel separator, comprising a feed hopper, wherein:

[0008] A concrete outlet is provided on the bottom of the feed hopper;

[0009] It also includes a water spray assembly, a spreading rod and a driving assembly, wherein:

[0010] One end of the water spray assembly is fixedly arranged inside the feed hopper and away from the concrete outlet, and is used to spray water in the direction of the concrete outlet;

[0011] The material spreading rod is arranged inside the feed hopper and parallel to the bottom of the feed hopper, and one end of the material spreading rod is fixedly connected to the output end of the driving assembly;

[0012] The driving assembly is arranged between the material spreading rod and the water spraying assembly and is fixedly arranged on the inner side of the feed hopper, and is used to drive the material spreading rod to horizontally reciprocate along a water spraying direction perpendicular to the water spraying direction of the water spraying assembly.

[0013] On the basis of the above technical solution, preferably, a first gap is provided between the spreading rod and the bottom of the feed hopper.

[0014] On the basis of the above technical solution, preferably, the material spreading rod is a rectangular porous plate, and the long side of the material spreading rod is parallel to the bottom of the feed hopper.

[0015] On the basis of the above technical solution, preferably, the bottom of the feed hopper is an inclined bottom, wherein:

[0016] The concrete outlet is arranged at a lower part of the inclined bottom, and the water spraying assembly is arranged at a higher part of the inclined bottom.

[0017] On the basis of the above technical solution, preferably, the driving assembly includes a lead screw, a guide rod, a slider and a motor, wherein:

[0018] The lead screw and the guide rod are arranged horizontally and in parallel, and are perpendicular to the water spraying direction of the water spraying assembly;

[0019] The lead screw penetrates the slider and is threadedly connected, and both ends of the lead screw penetrate the side of the feed hopper and are rotatably connected;

[0020] The guide rod passes through the slider and is slidably connected, and both ends of the guide rod pass through the side of the feed hopper and are fixedly connected;

[0021] The sliding block is fixedly connected to one end of the material spreading rod;

[0022] The motor is fixedly arranged on the side of the feed hopper, and the output end of the motor is fixedly connected to one end of the lead screw.

[0023] On the basis of the above technical solution, preferably, the slider and the spreading rod are respectively arranged in a plurality of equal distances along the axial direction of the lead screw, wherein:

[0024] The plurality of material spreading rods and the plurality of sliding blocks correspond to each other one by one and are fixedly connected.

[0025] On the basis of the above technical solution, preferably, the water spray assembly includes a water distribution pipe and a water spray head, wherein:

[0026] The water distribution pipe is parallel to the lead screw, and both ends of the water distribution pipe penetrate the side ends of the feed hopper and are fixedly connected;

[0027] The water spray heads are fixedly arranged on the side of the water distribution pipe close to the concrete outlet, and a plurality of water spray heads are arranged equidistantly along the axial direction of the water distribution pipe.

[0028] On the basis of the above technical solution, preferably, it also includes a dust cover, wherein:

[0029] The dust cover is arranged above the water spray assembly and the driving assembly;

[0030] One end of the dust cover close to the concrete outlet is vertically bent downward, and a second gap is provided between the downwardly bent end of the dust cover and the bottom of the feed hopper;

[0031] One end of the material spreading rod away from the sliding block passes through the second gap.

[0032] On the basis of the above technical solution, preferably, it also includes a frame, a vibrating screen and a spiral separator, wherein:

[0033] The feed hopper, the vibrating screen, and the spiral separator are sequentially arranged on the frame from top to bottom;

[0034] The concrete outlet is arranged on the inner side of the vibrating screen;

[0035] The bottom of the vibrating screen is provided with a pulp outlet, and the side of the vibrating screen is provided with a coarse material outlet;

[0036] The top of one end of the spiral separator is provided with a slurry inlet, and the bottom of the other end is provided with a fine material outlet;

[0037] The slurry outlet is arranged on the inner side of the slurry inlet.

[0038] On the basis of the above technical solution, preferably, it also includes a spray assembly, wherein:

[0039] The spray assembly is arranged between the feed hopper and the vibrating screen, and is fixedly arranged on the vibrating screen.

[0040] The sand and gravel separator of the utility model has the following beneficial effects compared with the prior art:

[0041] (1) By setting a driving assembly to drive the spreading rod to reciprocate horizontally along the water spraying direction perpendicular to the water spraying direction of the water spraying assembly, it is convenient to use the spreading rod to spread the concrete poured into the feed hopper and flatten the concrete. By setting a water spraying assembly to spray water in the direction of the concrete outlet, it is convenient to use the water flow to dilute the concrete on the feed hopper, thereby making the subsequent concrete layer falling on the vibrating screen thinner, which is conducive to rapid screening and greatly improves the screening efficiency of the vibrating screen.

[0042] (2) By setting a water spraying assembly to spray water in the direction of the concrete outlet, it is convenient to use water to flush the feed hopper, so that it is not easy to leave concrete in the feed hopper, which is beneficial to the subsequent maintenance of the feed hopper. Flushing is also beneficial to the rapid transportation of concrete and improves efficiency.

[0043] (3) By setting the spreading rod to a rectangular porous plate, it is convenient to reduce the resistance of the spreading rod when spreading concrete, thereby improving the durability of the equipment.

[0044] (4) A plurality of sliders and material spreading rods are arranged equidistantly along the axial direction of the lead screw, and the plurality of material spreading rods and the plurality of sliders correspond to each other and are fixedly connected, thereby improving the effect of spreading concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 This is a three-dimensional diagram of a sand and gravel separator of the utility model;

[0047] Figure 2 This is a front view of a sand and gravel separator of the utility model;

[0048] Figure 3 It is a partial stereoscopic diagram of a sand and gravel separator of the utility model;

[0049] Figure 4 It is a partial front cross-sectional view of a sand and gravel separator of the utility model;

[0050] In the figure: 1. feed hopper; 2. water spray assembly; 3. material spreading rod; 4. drive assembly; 5. dust cover; 6. frame; 7. vibrating screen; 8. spiral separator; 9. spray assembly; 21. water distribution pipe; 22. water spray head; 41. screw; 42. guide rod; 43. slider; 44. motor; 101. concrete outlet; 301. first gap; 501. second gap; 701. slurry outlet; 702. coarse material outlet; 801. slurry inlet; 802. fine material outlet. DETAILED DESCRIPTION

[0051] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] like Figure 1-4 As shown, a sand and gravel separator of the utility model includes a feed hopper 1, a frame 6, a vibrating screen 7, a spiral separator 8 and a spray assembly 9.

[0053] Among them, the feed hopper 1 is square in shape, and its bottom is an inclined bottom. A concrete outlet 101 is arranged at the lower part of the inclined bottom, which is used to introduce materials into the vibrating screen 7. Specifically, the feed hopper 1, the vibrating screen 7, and the spiral separator 8 are arranged on the frame 6 from top to bottom in sequence, the concrete outlet 101 is arranged on the inner side of the vibrating screen 7, the bottom of the vibrating screen 7 is provided with a slurry outlet 701, the side of the vibrating screen 7 is provided with a coarse material outlet 702, the top of one end of the spiral separator 8 is provided with a slurry inlet 801, and the bottom of the other end is provided with a fine material outlet 802, the slurry outlet 701 is arranged on the inner side of the slurry inlet 801, and the spray assembly 9 is provided. It is located between the feed hopper 1 and the vibrating screen 7 and is fixedly arranged on the vibrating screen 7 to clean the material on the vibrating screen 7. During screening, the material is poured into the feed hopper 1 and then falls into the vibrating screen 7 from the concrete outlet 101 for screening. The screened large-size stone is discharged from the coarse material outlet 702, and the small-size material and water fall into the spiral separator 8 from the slurry outlet 701 for screening. The belly of the spiral separator 8 is provided with a filter screen, and a water trough is fixed at the bottom of the spiral separator 8. A water outlet is provided on one side of the water trough for connecting to a sewage pipe. During screening, water falls into the water trough, and the small-size stone is discharged from the coarse material outlet 702.

[0054] In addition, the spray assembly 9 includes a plurality of spray pipes arranged side by side, and a plurality of spray heads are installed at the bottom of the spray pipes. The spray heads are used to spray water downward to clean the materials on the vibrating screen 7.

[0055] During the screening process, concrete is easy to adhere to the feed hopper 1 and is also easy to accumulate in the feed hopper 1 in large quantities. The accumulated concrete is also easy to remain in the aggregated state when it falls into the vibrating screen 7, which will increase the screening difficulty of the vibrating screen 7 and reduce its screening efficiency. To prevent this situation from occurring, a sand and gravel separator of the utility model also includes a water spray component 2, a spreading rod 3 and a drive component 4.

[0056] Among them, Figure 3-4As shown, one end of the water spray assembly 2 is fixedly arranged inside the feed hopper 1 and away from the side of the concrete outlet 101, that is, the water spray assembly 2 is arranged at a high place of the inclined bottom, and is used to spray water in the direction of the concrete outlet 101, and the spreading rod 3 is arranged inside the feed hopper 1 and parallel to the bottom of the feed hopper 1, and one end of the spreading rod 3 is fixedly connected to the output end of the driving assembly 4, and the driving assembly 4 is arranged between the spreading rod 3 and the water spray assembly 2, and is fixedly arranged on the inner side of the feed hopper 1, and is used to drive the spreading rod 3 to reciprocate horizontally along the water spraying direction perpendicular to the water spray assembly 2. The concrete poured into the feed hopper 1 is spread by the spreading rod 3, and combined with the dilution of the water flow, the concrete layer that subsequently falls on the vibrating screen 7 is relatively thin, which is conducive to rapid screening and greatly improves the screening efficiency of the vibrating screen 7.

[0057] Specifically, a first gap 301 is provided between the spreading rod 3 and the bottom of the feed hopper 1, so that the concrete after leveling has a certain thickness. The width of the gap is 20-50 mm. During the leveling process, the spreading rod 3 will be subjected to greater resistance from the concrete, which will increase the load of the driving assembly 4. To solve this problem, the spreading rod 3 is configured as a rectangular porous plate, and the long side of the spreading rod 3 is parallel to the bottom of the feed hopper 1. The design of the porous plate can effectively reduce resistance and improve the durability of the equipment.

[0058] like Figure 2 As shown, the drive assembly 4 adopts a screw transmission structure. Specifically, the drive assembly 4 includes a screw 41, a guide rod 42, a slider 43 and a motor 44, wherein the screw 41 and the guide rod 42 are horizontally and parallelly arranged and perpendicular to the water spraying direction of the water spraying assembly 2, the screw 41 passes through the slider 43 and is threadedly connected, and both ends of the screw 41 pass through the side of the feed hopper 1 and are rotatably connected, the guide rod 42 passes through the slider 43 and is slidably connected, and both ends of the guide rod 42 pass through the side of the feed hopper 1 and are fixedly connected, the slider 43 is fixedly connected to one end of the spreading rod 3, and the motor 44 is fixedly arranged The side of the feed hopper 1, and the output end of the motor 44 is fixedly connected to one end of the screw 41. When the motor 44 is working, its output shaft drives the screw 41 to rotate forward or reverse. The slider 43 realizes linear sliding by meshing with the screw 41 and sliding with the guide rod 42, so that the slider 43 reciprocates on the screw 41. During the translation process, the slider 43 drives the spreading rod 3 to reciprocate and move the concrete for spreading. The control circuit for the forward and reverse rotation of the motor 44 is any one of the prior art, such as a motor forward and reverse control circuit disclosed in CN103633888B.

[0059] In order to improve the effect of spreading concrete by the spreading rod 3 in the above structure, a number of sliding blocks 43 and spreading rods 3 are equidistantly arranged along the axial direction of the screw 41, wherein a number of spreading rods 3 and a number of sliding blocks 43 correspond one to one and are fixedly connected, and a number of spreading rods 3 are designed to be centered in the feed hopper 1, and the spacing between the side spreading rods 3 and the side of the feed hopper 1 is equal to the spacing between two adjacent spreading rods 3. During reciprocating motion, a number of spreading rods 3 spread concrete at the same time, and the spreading effect is better.

[0060] like Figure 2 As shown, the water spray assembly 2 includes a water distribution pipe 21 and a water spray head 22, wherein the water distribution pipe 21 is parallel to the screw 41, and both ends of the water distribution pipe 21 penetrate the side end of the feed hopper 1 and are fixedly connected, the water spray head 22 is fixedly arranged on the side of the water distribution pipe 21, and a plurality of water spray heads 22 are equidistantly arranged along the axial direction of the water distribution pipe 21, the water spray head 22 can adopt an ordinary spray head, and can also adopt a universal spray head, one end of the water distribution pipe 21 protrudes from the side end of the feed hopper 1, and is used to connect the tap water pipe or other return water pipe, after the water enters the water distribution pipe 21, it is dispersed into a plurality of water spray heads 22, and the water spray heads 22 spray water in the direction of the concrete outlet 101 to dilute the concrete, and at the same time, the sprayed water also flushes the bottom of the feed hopper 1, so that it is not easy for concrete to remain in the feed hopper 1, which is beneficial to the subsequent maintenance of the feed hopper 1, and the flushing is beneficial to the rapid transportation of concrete and improves efficiency.

[0061] During the pouring process of concrete, concrete may splash onto the water spray assembly 2 and the drive assembly 4, affecting their normal operation. Figure 4 As shown, a dust cover 5 is provided above the water spray assembly 2 and the driving assembly 4, and a shielding protection is formed by the dust cover 5 to prevent concrete from splashing onto the water spray assembly 2 and the driving assembly 4. Specifically, the dust cover 5 is a plate-like structure, and its end close to the concrete outlet 101 is vertically bent downward, and a second gap 501 is provided between the downwardly bent end of the dust cover 5 and the bottom of the feed hopper 1, and the end of the spreading rod 3 away from the slider 43 passes through the second gap 501, that is, the downwardly bent end of the dust cover 5 does not contact the top of the spreading rod 3, and the spreading rod 3 can reciprocate inside the second gap 501 without interference.

[0062] In addition, a lifting ring is provided on the top of the frame 6 for lifting and transporting the entire device.

[0063] The use method of a sand and gravel separator of the utility model is as follows:

[0064] During screening, the material is poured into the feed hopper 1, the driving component 4 drives the spreading rod 3 to move back and forth to spread the concrete in the feed hopper 1, and the water spraying component 2 simultaneously sprays water into the feed hopper 1 to dilute the concrete.

[0065] The concrete becomes thinner after being distributed and diluted. The thinned concrete falls from the concrete outlet 101 into the vibrating screen 7 for screening. The screened large-size stone is discharged from the coarse material outlet 702. The small-size material and water fall from the slurry outlet 701 into the spiral separator 8 for screening. The screened small-size stone is discharged from the coarse material outlet 702.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand and gravel separator, comprising a feed hopper (1), wherein: The bottom of the feed hopper (1) is provided with a concrete outlet (101); It is characterized in that it also includes a water spraying assembly (2), a material spreading rod (3) and a driving assembly (4), wherein: One end of the water spray assembly (2) is fixedly arranged inside the feed hopper (1) and at a side away from the concrete outlet (101), and is used to spray water in the direction of the concrete outlet (101); The material spreading rod (3) is arranged inside the feed hopper (1) and parallel to the bottom of the feed hopper (1), and one end of the material spreading rod (3) is fixedly connected to the output end of the driving assembly (4); The driving assembly (4) is arranged between the material spreading rod (3) and the water spraying assembly (2), and is fixedly arranged on the inner side of the feed hopper (1), and is used to drive the material spreading rod (3) to move horizontally back and forth along a water spraying direction perpendicular to the water spraying direction of the water spraying assembly (2).

2. A sand and gravel separator according to claim 1, characterized in that: A first gap (301) is provided between the material spreading rod (3) and the bottom of the feed hopper (1).

3. A sand and gravel separator as claimed in claim 2, characterized in that: The material spreading rod (3) is a rectangular porous plate, and the long side of the material spreading rod (3) is parallel to the bottom of the feed hopper (1).

4. A sand and gravel separator as claimed in claim 3, characterized in that: The bottom of the feed hopper (1) is a sloping bottom, wherein: The concrete outlet (101) is arranged at a lower part of the inclined bottom, and the water spray assembly (2) is arranged at a higher part of the inclined bottom.

5. A sand and gravel separator as claimed in claim 4, characterized in that: The driving assembly (4) comprises a lead screw (41), a guide rod (42), a slider (43) and a motor (44), wherein: The lead screw (41) and the guide rod (42) are arranged horizontally and in parallel, and are perpendicular to the water spraying direction of the water spraying assembly (2); The lead screw (41) passes through the slider (43) and is threadedly connected, and both ends of the lead screw (41) pass through the side of the feed hopper (1) and are rotatably connected; The guide rod (42) passes through the slider (43) and is slidably connected, and both ends of the guide rod (42) pass through the side of the feed hopper (1) and are fixedly connected; The sliding block (43) is fixedly connected to one end of the material spreading rod (3); The motor (44) is fixedly arranged on the side of the feed hopper (1), and the output end of the motor (44) is fixedly connected to one end of the lead screw (41).

6. A sand and gravel separator as claimed in claim 5, characterized in that: The sliders (43) and the material spreading rods (3) are respectively arranged in a plurality of equal distances along the axial direction of the lead screw (41), wherein: The plurality of material spreading rods (3) and the plurality of sliding blocks (43) correspond to each other one by one and are fixedly connected.

7. A sand and gravel separator according to claim 6, characterized in that: The water spray assembly (2) comprises a water distribution pipe (21) and a water spray head (22), wherein: The water distribution pipe (21) is parallel to the lead screw (41), and both ends of the water distribution pipe (21) penetrate the side ends of the feed hopper (1) and are fixedly connected; The water spray heads (22) are fixedly arranged on the side of the water distribution pipe (21) close to the concrete outlet (101), and a plurality of water spray heads (22) are arranged at equal distances along the axial direction of the water distribution pipe (21).

8. A sand and gravel separator according to claim 7, characterized in that: Also included is a dust cover (5), wherein: The dust cover (5) is arranged above the water spray assembly (2) and the drive assembly (4); One end of the dust cover (5) close to the concrete outlet (101) is vertically bent downward, and a second gap (501) is provided between the downwardly bent end of the dust cover (5) and the bottom of the feed hopper (1); One end of the spreading rod (3) away from the sliding block (43) passes through the second gap (501).

9. A sand and gravel separator according to claim 1 or 8, characterized in that: It also includes a frame (6), a vibrating screen (7) and a spiral separator (8), wherein: The feed hopper (1), the vibrating screen (7), and the spiral separator (8) are arranged on the frame (6) in order from top to bottom; The concrete outlet (101) is arranged on the inner side of the vibrating screen (7); The bottom of the vibrating screen (7) is provided with a pulp outlet (701), and the side of the vibrating screen (7) is provided with a coarse material outlet (702); The top of one end of the spiral separator (8) is provided with a slurry inlet (801), and the bottom of the other end is provided with a fine material outlet (802); The slurry outlet (701) is arranged on the inner side of the slurry inlet (801).

10. A sand and gravel separator according to claim 9, characterized in that: It also includes a spray assembly (9), wherein: The spray assembly (9) is arranged between the feed hopper (1) and the vibrating screen (7), and is fixedly arranged on the vibrating screen (7).

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