Machine-made sand winnowing equipment

Abstract

The utility model discloses machine-made sand winnowing equipment, and relates to the technical field of winnowing equipment, the machine-made sand winnowing equipment comprises a winnowing box, a dust collection mechanism and a crushing mechanism, the top of the winnowing box is fixedly communicated with a feed hopper, the bottom of the winnowing box is fixedly communicated with a discharge hopper, one side of the winnowing box is provided with three fans which are distributed at equal intervals, and the other side of the winnowing box is provided with a dust collection mechanism. The wind power of the three fans is sequentially increased from top to bottom, three corresponding collecting assemblies are arranged on the other side of the winnowing box, and the dust suction mechanism comprises a dust suction box, a dust suction fan, a dust collection drawer and a dust filtering net. The dust collection mechanism is arranged, so that serious pollution to the surrounding environment caused by dust overflow can be reduced, and meanwhile, harm to human health caused by dust overflow is also reduced; and the crushing mechanism is arranged, through relative rotation of two crushing rollers in the discharging hopper, some machine-made sand which is not winnowed out and is large in particle size can be fully crushed, and then the part of machine-made sand can be winnowed and utilized again in the follow-up process.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation equipment, in particular to machine-made sand air separation equipment. Background Art

[0002] Artificial sand is generally added to concrete as fine aggregate. When preparing concrete, it is necessary to select artificial sand of specific particle size according to specific performance requirements. At this time, air separation equipment is needed.

[0003] After searching, the patent with application number 202121822183.7 discloses a machine-made sand air-selection device, which automatically screens the machine-made sand entering the air-selection box by turning on three electric fans with increasing wind force from top to bottom, that is, the machine-made sand with smaller particle size (lighter weight) is blown into the corresponding storage box by the top electric fan, and the machine-made sand with larger particle size (heavier weight) is blown into the corresponding storage box by the bottom electric fan, and the heaviest machine-made sand falls to the bottom of the air-selection box. However, this patent has the following shortcomings in actual operation:

[0004] First, during the air separation process, some dust is easily scattered from the feed hopper, which not only causes serious pollution to the surrounding environment, but also endangers human health.

[0005] Secondly, during the discharging process, some machine-made sand that has not been air-selected and has a large particle size cannot be fully crushed, which results in this part of the machine-made sand being unable to be reused by air selection. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a machine-made sand air separation device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A machine-made sand air separation device comprises an air separation box, a dust suction mechanism and a crushing mechanism, wherein the top of the air separation box is fixedly connected to a feed hopper, and the bottom of the air separation box is fixedly connected to a discharge hopper;

[0009] Three fans are installed at equal distances on one side of the air separation box, and the wind force of the three fans increases from top to bottom, and three corresponding collection components are installed on the other side of the air separation box;

[0010] The dust collection mechanism includes a dust collection box fixedly connected to the upper outer wall of one side of the air separation box, a dust collection fan installed at the bottom of the dust collection box, a dust collection drawer installed in the dust collection box, and a dust filter fixedly connected to the dust collection drawer, which can reduce the serious pollution caused by dust overflow to the surrounding environment, and also reduce the harm caused by dust overflow to human health;

[0011] The crushing mechanism includes a driving assembly, two transmission shafts rotatably installed in the discharge hopper, two crushing rollers fixedly connected to the two transmission shafts in sequence and meshing with each other, and two transmission gears fixedly mounted on the two transmission shafts in sequence. Through the relative rotation of the two crushing rollers, some machine-made sand that has not been air-selected and has a large particle size can be fully crushed, so that this part of the machine-made sand can be reused by air selection later.

[0012] Preferably, the collecting assembly includes a box body fixedly connected to the outer wall of the other side of the air separation box, a conveying square pipe fixedly connected between the top of the box body and the other side of the air separation box, and a material receiving drawer installed in the box body.

[0013] Preferably, the top and bottom of the dust collection drawer are both open structures, and the top of the dust collection box is connected to a dust collection hood located above the feed hopper through a dust collection pipe.

[0014] Preferably, the driving assembly includes a driving motor fixedly mounted on the side wall of the discharge hopper and a driving gear fixedly sleeved on the output shaft of the driving motor.

[0015] Preferably, the two transmission gears mesh with each other, and the driving gear meshes with an adjacent transmission gear.

[0016] Preferably, two supporting legs are welded to the lower outer walls on both sides of the air separation box, and a material receiving box is provided below the discharge hopper.

[0017] The beneficial effects of the utility model are:

[0018] 1. A dust collection mechanism is provided. Through the suction force generated by the operation of the dust collection fan, part of the dust flying out of the feed hopper can be sucked into the dust collection box during the air selection process. Then, the dust entering will be collected in the dust collection drawer under the filtration and interception of the dust filter. This can reduce the serious pollution caused by the dust overflow to the surrounding environment, and also reduce the harm caused by the dust overflow to human health;

[0019] 2. A crushing mechanism is provided. Through the relative rotation of the two crushing rollers in the discharge hopper, some machine-made sand with large particle size that has not been air-selected can be fully crushed, so that this part of the machine-made sand can be reused by air selection later. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model as a whole from one side perspective;

[0021] Figure 2 It is a three-dimensional enlarged structural diagram of the crushing mechanism at the discharge hopper in the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the utility model as a whole from another side perspective;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the three collecting component areas in the utility model;

[0024] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the dust collection mechanism in the utility model;

[0025] Figure 6 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0026] In the figure: 1. air separation box; 2. feed hopper; 3. discharge hopper; 4. fan; 5. box body; 6. conveying square tube; 7. material receiving drawer; 8. dust suction box; 9. dust suction fan; 10. dust collection drawer; 11. dust filter; 12. dust suction hood; 13. transmission shaft; 14. crushing roller; 15. transmission gear; 16. drive motor; 17. drive gear; 18. material receiving box. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1, reference Figure 1 and Figure 3-6 , a machine-made sand air separation device, comprising an air separation box 1 and a dust suction mechanism;

[0029] Furthermore, two supporting legs are welded to the lower outer walls of both sides of the air separation box 1, the top of the air separation box 1 is fixedly connected to a feed hopper 2, the bottom of the air separation box 1 is fixedly connected to a discharge hopper 3, and a receiving box 18 is provided below the discharge hopper 3;

[0030] Furthermore, three fans 4 are installed at equal distances on one side of the air separation box 1, and the wind force of the three fans 4 increases from top to bottom. Three corresponding collection components are installed on the other side of the air separation box 1;

[0031] Furthermore, the collecting assembly includes a box body 5 fixedly connected to the outer wall of the other side of the air separation box 1, a conveying square pipe 6 fixedly connected between the top of the box body 5 and the other side of the air separation box 1, and a material receiving drawer 7 installed in the box body 5;

[0032] In this embodiment, the dust collection mechanism includes a dust collection box 8 fixedly connected to the upper outer wall of one side of the air separation box 1, a dust collection fan 9 installed at the bottom of the dust collection box 8, a dust collection drawer 10 installed in the dust collection box 8, and a dust filter 11 fixedly connected to the dust collection drawer 10;

[0033] Furthermore, the top and bottom of the dust collection drawer 10 are both open structures, and the top of the dust collection box 8 is connected to the dust collection hood 12 located above the feed hopper 2 through a dust collection pipe;

[0034] During the specific implementation of this embodiment, through the suction force generated during the operation of the dust suction fan 9, a part of the dust flying out of the feed hopper 2 can be sucked into the dust suction box 8 during the air selection process. Then, under the filtration and interception of the dust filter 11, the incoming dust will be uniformly collected in the dust collection drawer 10. This can reduce the serious pollution caused by the dust overflow to the surrounding environment, and also reduce the harm caused by the dust overflow to human health.

[0035] Example 2, reference Figure 1-3 This embodiment is optimized on the basis of the embodiment 1, specifically: a machine-made sand air separation device, further comprising a crushing mechanism, the crushing mechanism comprising:

[0036] Two transmission shafts 13 and two mutually meshing crushing rollers 14, the two transmission shafts 13 are rotatably mounted in the discharge hopper 3, and the two crushing rollers 14 are fixedly connected to the two transmission shafts 13 in sequence and are both located in the discharge hopper 3;

[0037] Two transmission gears 15, the two transmission gears 15 are fixedly sleeved on the two transmission shafts 13 in sequence and are both located outside the discharge hopper 3, and the two transmission gears 15 are meshed with each other;

[0038] A driving assembly, which includes a driving motor 16 fixedly mounted on the side wall of the discharge hopper 3 and a driving gear 17 fixedly sleeved on the output shaft of the driving motor 16, and the driving gear 17 is meshed with an adjacent transmission gear 15;

[0039] In the specific implementation of this embodiment: the driving motor 16 is used to control the driving gear 17 to rotate forward, and then a transmission gear 15 meshing with the driving gear 17 will rotate reversely, and then the other transmission gear 15 will rotate forward, so that the two crushing rollers 14 on the two transmission shafts 13 will rotate relative to each other in the discharge hopper 3, which can fully crush some machine-made sand with large particle size that has not been air-selected, so that this part of the machine-made sand can be reused by air-selection later.

[0040] The working principle of the utility model is as follows: first, the machine-made sand to be screened is added from the feed hopper 2 into the air separation box 1. At this time, three fans 4 with wind forces increasing from top to bottom blow the machine-made sand into three conveying square tubes 6 according to the particle size and enter the three receiving drawers 7 in turn for unified collection;

[0041] Secondly, during the air selection process, the suction force generated by the dust collecting fan 9 during operation can suck part of the dust flying out of the feed hopper 2 into the dust collecting box 8 during the air selection process, and then the dust entering is filtered and intercepted by the dust filter 11, and the dust will be uniformly collected in the dust collecting drawer 10;

[0042] Finally, the driving motor 16 is used to control the driving gear 17 to rotate forward, and then a transmission gear 15 meshing with the driving gear 17 will rotate reversely, and then the other transmission gear 15 will rotate forward, so that the two crushing rollers 14 on the two transmission shafts 13 will rotate relative to each other in the discharge hopper 3, so that some machine-made sand with large particle size that has not been selected by the wind can be fully crushed, and the crushed machine-made sand will eventually fall into the receiving box 18.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A machine-made sand air separation device, comprising an air separation box (1), wherein the top of the air separation box (1) is fixedly connected to a feed hopper (2), and the bottom of the air separation box (1) is fixedly connected to a discharge hopper (3); It is characterized in that It also includes a dust collection mechanism and a crushing mechanism, wherein three fans (4) are installed at equal distances on one side of the air separation box (1), the wind force of the three fans (4) increases from top to bottom, and three corresponding collection components are arranged on the other side of the air separation box (1); The dust collection mechanism comprises a dust collection box (8) fixedly connected to the upper outer wall of one side of the air separation box (1), a dust collection fan (9) installed at the bottom of the dust collection box (8), a dust collection drawer (10) installed in the dust collection box (8), and a dust filter (11) fixedly connected to the dust collection drawer (10); The pulverizing mechanism comprises a driving assembly, two transmission shafts (13) rotatably mounted in a discharge hopper (3), two pulverizing rollers (14) sequentially fixedly connected to the two transmission shafts (13) and meshing with each other, and two transmission gears (15) sequentially fixedly sleeved on the two transmission shafts (13).

2. The machine-made sand air separation equipment according to claim 1, characterized in that: The collecting assembly comprises a box body (5) fixedly connected to the outer wall of the other side of the air separation box (1), a conveying square pipe (6) fixedly connected between the top of the box body (5) and the other side of the air separation box (1), and a material receiving drawer (7) installed in the box body (5).

3. The machine-made sand air separation equipment according to claim 1, characterized in that: The top and bottom of the dust collection drawer (10) are both open structures, and the top of the dust collection box (8) is connected to a dust collection hood (12) located above the feed hopper (2) via a dust collection pipe.

4. The machine-made sand air separation equipment according to claim 1, characterized in that: The driving assembly comprises a driving motor (16) fixedly mounted on the side wall of the discharge hopper (3) and a driving gear (17) fixedly sleeved on the output shaft of the driving motor (16).

5. The machine-made sand air separation equipment according to claim 1, characterized in that: The two transmission gears (15) mesh with each other, and the driving gear (17) meshes with an adjacent transmission gear (15).

6. The machine-made sand air separation equipment according to claim 1, characterized in that: Two supporting legs are welded to the lower outer walls on both sides of the air separation box (1), and a material receiving box (18) is provided below the discharge hopper (3).

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