Mechanism sand powder selection grading device

Abstract

The utility model discloses a kind of mechanism sand powder selection grading devices, solve the higher energy consumption in the use process of existing mechanism sand powder selection machine, and the technical problem that the structure for dispersing material in mechanism sand powder selection machine inside is more deeply worn by material. Including support frame, first separating mechanism for separating fine stone powder in mechanism sand is arranged on support frame, and second separating mechanism for separating coarse stone powder in mechanism sand is arranged on support frame and is connected from first separating mechanism. The utility model disperses material using static material dispersing mechanism, relative to existing mechanism sand powder selection machine using dynamic material spreading disc to disperse material, the utility model reduces energy consumption, and when material dispersing mechanism collides with falling material in the utility model, material dispersing mechanism is in stationary state, reduce the degree of material dispersing mechanism for dispersing material in device inside by material wear.

Description

Technical Field

[0001] This utility model belongs to the field of manufactured sand classification technology, specifically relating to a manufactured sand classification and grading device. Background Technology

[0002] A manufactured sand classifier is a separation device that uses air separation technology to separate stone powder from sand and gravel, thereby controlling the stone powder content and improving the quality and purity of the sand and gravel. In existing manufactured sand classifiers, the material is dispersed using an internal spreading disc. After entering the classifier, the material is spread outwards by the high-speed rotation of the spreading disc. Stone powder in the material is lifted upwards by the rising airflow and enters the classification chamber for separation. The high-speed rotation of the spreading disc requires an electrical supply, resulting in high energy consumption during prolonged use of the manufactured sand classifier. Furthermore, the collision between the rotating spreading disc and the falling material increases the wear and tear on the disc structure. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a manufactured sand classifier and grading device to solve the technical problems of high energy consumption and high wear of the internal structure of the manufactured sand classifier used to disperse materials.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A manufactured sand classification device includes a support frame, a first separation mechanism mounted on the support frame for separating fine stone powder from manufactured sand, and a second separation mechanism mounted on the support frame and connected to the first separation mechanism for separating coarse stone powder from manufactured sand. The first separation mechanism includes a material dispersion box mounted on the support frame, an airflow supply mechanism located inside the material dispersion box and connected to an external fan, and two fine stone powder collection mechanisms mounted on the support frame and connected to the material dispersion box for collecting fine stone powder.

[0006] Furthermore, the material distribution box is provided with a material inlet, and the material distribution box and the air supply mechanism are provided with a material distribution mechanism. The material distribution mechanism includes a material distribution plate provided on the air supply mechanism and connected to the material inlet, a material distribution ring circumferentially provided on the inner wall of the material distribution box and connected to the material distribution plate, and a material distribution rack provided on the air supply mechanism and the material distribution box and connected to the material distribution ring.

[0007] Furthermore, the airflow supply mechanism includes an air duct located inside the material dispersion box and connected to an external fan; the air duct has several air outlets, and a protective net is installed inside each air outlet; the material dispersion disc is located at the top of the air duct.

[0008] Furthermore, the material dispersing rack includes a fixing ring disposed on the outer wall of the air duct, and several material dispersing rods respectively connected between the fixing ring and the inner wall of the material dispersing box.

[0009] Furthermore, the material dispersion disk has several first material dispersion ridges, and the material dispersion ring has several second material dispersion ridges.

[0010] Furthermore, a separation chamber is provided inside the material dispersion box, and an airflow chamber connected to the separation chamber is formed between the material dispersion ring and the inner wall of the material dispersion box; the fine stone powder collection mechanism includes a first collection pipe and a second collection pipe respectively connected to the separation chamber and the airflow chamber, a third collection pipe connected to the first collection pipe and the second collection pipe, and a collection box connected to the third collection pipe; a collection chamber is provided inside the collection box, and a breathable filter cloth is provided inside the collection chamber, and an air outlet pipe connected to the collection chamber is provided on the collection box.

[0011] Furthermore, the material dispersion box is provided with a first airflow inlet and a second airflow inlet that are respectively connected to the separation chamber and the airflow chamber. The first collection pipe is connected from the first airflow inlet and the second collection pipe is connected from the second airflow inlet.

[0012] Furthermore, a material screening box is mounted on a support frame and connected to the first separation mechanism; the material screening box is equipped with a screen that divides the interior of the material screening box into a filter chamber and a coarse stone powder collection chamber, and the side wall of the material screening box is equipped with a sand and gravel discharge pipe connected to the filter chamber.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention features a simple structure, a scientific and reasonable design, and ease of use. It utilizes a static material dispersion disc, a material dispersion ring, and a material dispersion frame to disperse materials sequentially. Multiple dispersion processes enhance the material dispersion effect, ensuring that the airflow can separate stone powder from the manufactured sand. Compared to existing manufactured sand classifiers that use dynamic spreading discs for material dispersion, this invention reduces energy consumption. Furthermore, when the material dispersion disc, material dispersion ring, and material dispersion frame collide with the falling material, they remain stationary, reducing the degree of wear and tear on these components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the material dispersion box.

[0017] Figure 3This is a schematic diagram showing the protective netting located inside the air outlet.

[0018] Figure 4 This is a top view of the material distribution disk.

[0019] Figure 5 This is a top view of the material dispersion ring located inside the material dispersion box.

[0020] The names corresponding to the reference numerals in the attached figures are as follows:

[0021] 1-Support frame, 2-Material dispersion box, 3-Material dispersion disc, 4-Material dispersion ring, 5-Material dispersion rack, 6-Material inlet, 7-Air duct, 8-Air outlet, 9-First material dispersion protrusion, 10-Second material dispersion protrusion, 11-Protective net, 12-Fixing ring, 13-Material dispersion rod, 14-Separation chamber, 15-Airflow chamber, 16-First collection pipe, 17-Second collection pipe, 18-Third collection pipe, 19-Collection box, 20-Collection chamber, 21-Breathable filter cloth, 22-Air outlet pipe, 23-Material screening box, 24-First airflow outlet, 25-Second airflow outlet, 26-Filter chamber, 27-Coarse stone powder collection chamber, 28-Screen, 29-Sand and gravel discharge pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] like Figure 1-5 As shown, the present invention provides a manufactured sand classifying and grading device that solves the technical problems of high energy consumption and severe wear on the internal structure of the manufactured sand classifier used for dispersing materials.

[0026] This utility model includes a support frame 1, a first separation mechanism disposed on the support frame 1 for separating fine stone powder from manufactured sand, and a second separation mechanism disposed on the support frame 1 and connected from the first separation mechanism for separating coarse stone powder from manufactured sand; the first separation mechanism includes a material dispersion box 2 disposed on the support frame 1, an airflow supply mechanism disposed inside the material dispersion box 2 and connected from an external fan, and two fine stone powder collection mechanisms disposed on the support frame 1 and connected from the material dispersion box 2 for collecting fine stone powder.

[0027] Figure 1 The straight arrow in the middle indicates the direction of airflow.

[0028] This invention features a simple structure, a scientific and reasonable design, and ease of use. It utilizes a static material dispersion disc, a material dispersion ring, and a material dispersion frame to disperse materials sequentially. Multiple dispersion processes enhance the material dispersion effect, ensuring that the airflow can separate stone powder from the manufactured sand. Compared to existing manufactured sand classifiers that use dynamic spreading discs for material dispersion, this invention reduces energy consumption. Furthermore, when the material dispersion disc, material dispersion ring, and material dispersion frame collide with the falling material, they remain stationary, reducing the degree of wear and tear on these components.

[0029] The material dispersion box 2 of this utility model has a material inlet 6. The material dispersion box 2 and the air supply mechanism are provided with a material dispersion mechanism. The material dispersion mechanism includes a material dispersion plate 3 provided on the air supply mechanism and connected to the material inlet 6, a material dispersion ring 4 circumferentially provided on the inner wall of the material dispersion box 2 and connected to the material dispersion plate 3, and a material dispersion rack 5 provided on the air supply mechanism and the material dispersion box 2 and connected to the material dispersion ring 4.

[0030] The material dispersion disk 3 slopes downwards from its top to its edge, and the material dispersion ring 4 slopes downwards from its outer ring to its inner ring. Manufactured sand falls from the material inlet 6 to the top of the material dispersion disk 3, and then disperses from the top to the edge of the material dispersion disk 3 onto the material dispersion ring 4. The manufactured sand collides with the material dispersion ring 4, causing the lighter fine stone powder in the manufactured sand to fly out of the sand and gravel. Afterwards, the manufactured sand disperses and falls along the outer ring to the inner ring of the material dispersion ring 4 to the bottom of the material dispersion box 2, colliding with the bottom of the material dispersion box 2. The fine stone powder in the manufactured sand is further thrown out of the sand and gravel. During its descent from the material dispersion ring 4, the manufactured sand passes through the material dispersion frame 5, colliding with it, causing the fine stone powder in the manufactured sand to fly out of the sand and gravel even more frequently. The material dispersion disc 3, material dispersion ring 4, and material dispersion rack 5 disperse the manufactured sand respectively, causing the fine stone powder in the manufactured sand to fly out. At the same time, the airflow supply mechanism provides airflow into the material dispersion box 2. The fine stone powder that is thrown up in the material dispersion box 2 enters the fine stone powder collection mechanism for collection under the carrying effect of the rising airflow.

[0031] The material dispersion disc 3 has several first material dispersion protrusions 9, and the material dispersion ring 4 has several second material dispersion protrusions 10. When manufactured sand falls from the material inlet 6 onto the material dispersion disc 3 and collides with it, the first material dispersion protrusions 9 on the material dispersion disc 3 can break up any clumps of manufactured sand, improving the dispersion effect. Similarly, when manufactured sand falls from the material dispersion disc 3 onto the material dispersion ring 4 and collides with it, the second material dispersion protrusions 10 on the material dispersion ring 4 can further break up any clumps of manufactured sand, improving the dispersion effect.

[0032] The material dispersion box 2 of this utility model has a separation chamber 14 inside, and an airflow chamber 15 connected to the separation chamber 14 is formed between the material dispersion ring 4 and the inner wall of the material dispersion box 2. The fine stone powder collection mechanism includes a first collection pipe 16 and a second collection pipe 17 connected to the separation chamber 14 and the airflow chamber 15 respectively, a third collection pipe 18 connected to the first collection pipe 16 and the second collection pipe 17, and a collection box 19 connected to the third collection pipe 18. A collection chamber 20 is opened inside the collection box 19, and a breathable filter cloth 21 is provided inside the collection chamber 20. An air outlet pipe 22 connected to the collection chamber 20 is provided on the collection box 19.

[0033] The material dispersion box 2 has a first airflow outlet 24 and a second airflow outlet 25 that are respectively connected to the separation chamber 14 and the airflow chamber 15. The first collection pipe 16 is connected from the first airflow outlet 24 and the second collection pipe 17 is connected from the second airflow outlet 25.

[0034] Fine stone powder raised in the material dispersion box 2 is carried by the rising airflow and enters the first collection pipe 16 and the second collection pipe 17 through the separation chamber 14 and the airflow chamber 15 respectively. It then enters the collection box 19 under the conveying action of the first collection pipe 16 and the second collection pipe 17. The fine stone powder in the airflow impacts the breathable filter cloth 21 inside the collection box 19, separating from the airflow and remaining in the collection box 19. The remaining airflow containing the separated fine stone powder is discharged through the air outlet pipe 22. The airflow chamber 15 is annular.

[0035] After initial powder selection in the material dispersion box 2, the manufactured sand falls from the material dispersion box 2 into the second separation mechanism for further powder selection. When using this invention, the decision to repeat the powder selection operation on the manufactured sand can be made based on the quality of the finished product after powder selection. If the manufactured sand still contains a large amount of stone powder after powder selection, it is then fed back into the device of this invention for another round of powder selection until the quality of the finished manufactured sand meets the requirements.

[0036] The airflow supply mechanism of this utility model includes an air duct 7 located inside the material dispersion box 2 and connected to an external fan; the air duct 7 has several air outlets 8, and a protective net 11 is installed inside each air outlet 8; the material dispersion plate 3 is located at the top of the air duct 7. The material dispersion rack 5 includes a fixing ring 12 located on the outer wall of the air duct 7, and several material dispersion rods 13 respectively connected between the fixing ring 12 and the inner wall of the material dispersion box 2.

[0037] The duct 7 is fixed inside the material dispersion box 2 by the support of the material dispersion rod 13 and the fixing ring 12. The air outlet 8 is connected to the inside of the duct 7. An external fan sends airflow into the material dispersion box 2 through the duct 7, allowing the fine stone powder raised in the material dispersion box 2 to rise with the airflow and be separated from the material dispersion box 2. The protective net 11 is used to prevent the manufactured sand from entering the air outlet 8 and clogging the duct 7 during its fall.

[0038] The second separation mechanism of this utility model includes a material screening box 23 mounted on a support frame 1 and connected to the first separation mechanism; the material screening box 23 is provided with a screen 28 that divides the interior of the material screening box 23 into a filter chamber 26 and a coarse stone powder collection chamber 27, and the side wall of the material screening box 23 is provided with a sand and gravel discharge pipe 29 connected to the filter chamber 26.

[0039] After initial powder selection in the material dispersion box 2, the manufactured sand falls from the material dispersion box 2 to the material screening box 23 for further powder selection. The manufactured sand entering the material screening box 23 contains coarse stone powder and some fine stone powder. After falling from the bottom of the material dispersion box 2 into the material screening box 23, the manufactured sand collides with the screen 28 and rolls down along the inclined direction of the screen 28. During the rolling on the screen 28, the stone powder in the manufactured sand passes through the screen 28 and enters the coarse stone powder collection chamber 27. The sand and gravel obtained after screening by the screen 28 are discharged from the material screening box 23 through the discharge pipe 29.

[0040] The stone powder collected in the coarse stone powder collection chamber 27 includes coarse stone powder and fine stone powder. To separate the coarse and fine stone powder mixture, the mixture in the coarse stone powder collection chamber 27 can be repeatedly fed into the device of this invention to separate the coarse and fine stone powder until the content of fine stone powder in the coarse stone powder collection chamber 27 is effectively reduced. When using this invention to separate coarse and fine stone powder, the material dispersion disc 3, the material dispersion ring 4, and the material dispersion frame 5 disperse the stone powder mixture, causing the fine stone powder in the stone powder mixture to be lifted up. This facilitates the upward airflow in the material dispersion box 2 to separate the lifted fine stone powder. The coarse stone powder in the stone powder mixture falls to the bottom of the material dispersion box 2 under its own gravity and then falls from the bottom of the material dispersion box 2 to the material screening box 23, and then falls into the coarse stone powder collection chamber 27 through the screen 28.

[0041] Finally, it should be noted that the above embodiments are merely preferred embodiments of this utility model used to illustrate the technical solutions of this utility model, and are not intended to limit it, nor are they intended to limit the patent scope of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. That is to say, any changes or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but whose technical problems are still consistent with those of this utility model, should be included within the protection scope of this utility model. In addition, the direct or indirect application of the technical solutions of this utility model to other related technical fields are similarly included within the patent protection scope of this utility model.

Claims

1. A manufactured sand classification and grading device, characterized in that, The system includes a support frame (1), a first separation mechanism disposed on the support frame (1) for separating fine stone powder from manufactured sand, and a second separation mechanism disposed on the support frame (1) and connected from the first separation mechanism for separating coarse stone powder from manufactured sand; the first separation mechanism includes a material dispersion box (2) disposed on the support frame (1), an airflow supply mechanism disposed inside the material dispersion box (2) and connected from an external fan, and two fine stone powder collection mechanisms disposed on the support frame (1) and connected from the material dispersion box (2) for collecting fine stone powder; The material distribution box (2) is provided with a material inlet (6), and the material distribution box (2) and the air supply mechanism are provided with a material distribution mechanism. The material distribution mechanism includes a material distribution plate (3) provided on the air supply mechanism and connected to the material inlet (6), a material distribution ring (4) circumferentially provided on the inner wall of the material distribution box (2) and connected to the material distribution plate (3), and a material distribution rack (5) provided on the air supply mechanism and the material distribution box (2) and connected to the material distribution ring (4).

2. The manufactured sand classification and grading device according to claim 1, characterized in that, The air supply mechanism includes an air duct (7) located inside the material distribution box (2) and connected to an external fan; the air duct (7) has several air outlets (8), and a protective net (11) is provided inside the air outlets (8); the material distribution plate (3) is located at the top of the air duct (7).

3. The manufactured sand classification and grading device according to claim 2, characterized in that, The material dispersing rack (5) includes a fixing ring (12) on the outer wall of the air duct (7) and several material dispersing rods (13) respectively connected between the fixing ring (12) and the inner wall of the material dispersing box (2).

4. The manufactured sand classification and grading device according to claim 1, characterized in that, Several first material dispersion ridges (9) are distributed on the material dispersion disk (3), and several second material dispersion ridges (10) are distributed on the material dispersion ring (4).

5. A manufactured sand classifying and grading device according to claim 1, characterized in that, A separation chamber (14) is provided inside the material dispersion box (2), and an airflow chamber (15) connected to the separation chamber (14) is formed between the material dispersion ring (4) and the inner wall of the material dispersion box (2); the fine stone powder collection mechanism includes a first collection pipe (16) and a second collection pipe (17) respectively connected from the separation chamber (14) and the airflow chamber (15), a third collection pipe (18) connected from the first collection pipe (16) and the second collection pipe (17), and a collection box (19) connected from the third collection pipe (18); a collection chamber (20) is provided inside the collection box (19), a breathable filter cloth (21) is provided inside the collection chamber (20), and an air outlet pipe (22) connected to the collection chamber (20) is provided on the collection box (19).

6. The manufactured sand classification and grading device according to claim 5, characterized in that, The material dispersion box (2) is provided with a first air outlet (24) and a second air outlet (25) that are respectively connected to the separation chamber (14) and the air flow chamber (15). The first collection pipe (16) is connected from the first air outlet (24) and the second collection pipe (17) is connected from the second air outlet (25).

7. The manufactured sand classification and grading device according to claim 1, characterized in that, The second separation mechanism includes a material screening box (23) mounted on a support frame (1) and connected to the first separation mechanism; the material screening box (23) is provided with a screen (28) that divides the interior of the material screening box (23) into a filter chamber (26) and a coarse stone powder collection chamber (27); the side wall of the material screening box (23) is provided with a sand and gravel discharge pipe (29) connected to the filter chamber (26).

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