Concrete material sorting device

Abstract

To provide a concrete material sorting device which has an excellent sorting effect and can impart sufficient discharge power to large-particle materials of different sizes and shapes. [Solution] This concrete production technology device comprises a disk 1, a rotating shaft 2, and a support frame. The disk 1 has a sieve screen 11 at the bottom, a side opening on the side, and a flow straightening cover 13 on the opening side. A plurality of arc-shaped blades 21 are evenly arranged on the rotating shaft 2, and each arc-shaped blade 21 includes a convex portion and a concave portion 212. The rotation direction of the rotating shaft 2 and the position of the side opening are designed in coordination, so that when the concave portion 212 rises, it stores, mixes, and separates sand, and when the arc-shaped blade 21 descends, the convex and concave portions 212 accelerate and guide large-sized materials for discharge.

Description

[Technical Field]

[0001] The present invention relates to the field of concrete production technology, and more particularly to a concrete material sorting device. [Background technology]

[0002] Concrete is an important building material widely used in civil engineering works, and is manufactured by mixing binders, aggregates, water, admixtures, and other additives in specific proportions. Among these, sand is one of the main ingredients, and large particles (such as large stones) must be removed by sorting.

[0003] In actual operation, rotating blades loosen the sand accumulated on the sieve screen, preventing a decrease in sorting efficiency due to accumulation. However, existing blades cannot accelerate or guide the separation of large particles after sorting, which makes it difficult for large particles to be quickly discharged. Therefore, the inventor proposes a concrete material sorting device to solve the above problem. Summary of the Invention [Problem to be solved by the invention]

[0004] In view of the shortcomings of existing technology, the purpose of this invention is to provide a concrete material sorting device to solve the problem of the lack of acceleration and induction separation function for large-sized particles and the low discharge efficiency of large-sized particles. [Means for solving the problem]

[0005] The concrete material sorting device according to the present invention comprises the following components. A disk (1) with an opening at the top and an opening positioned diagonally upward. A sieve mesh (11) is provided at the bottom of the disk (1) and is used to separate sand materials. A side opening (12) is provided on the side surface of the disk (1) and in a position close to the bottom. A rotary shaft (2) is rotatably provided at the central axis position of the disk (1). A plurality of arc-shaped blades (21) are evenly arranged on the circumferential side of the rotating shaft (2), one side of which contacts the sieve screen (11), and each blade includes a convex portion (211) and a concave portion (212). Here, the rotation direction of the rotary shaft (2) is from the convex surface portion (211) to the concave surface portion (212), and the opening position of the side opening (12) is located on the downward side of the arc-shaped blade (21). When the concave portion (212) rises, it stores, stirs and separates the sand; when the arc-shaped blade (21) descends, the convex portion (211) guides the large-sized material to slide out of the side opening (12), and the concave portion (212) guides the large-sized material to be discharged from the side opening (12).

[0006] Preferably, a gap is provided between the free end of the arc-shaped blade (21) and the disk (1), and the movement locus of the center position of the arc-shaped blade (21) is located on a circular surface at a position half the diameter of the sieve screen (11).

[0007] Preferably, a square pipe is fixedly attached to the side opening (12) through which it passes, and the width of the side opening (12) is equal to the width of the free ends of the two arcuate blades (21).

[0008] Preferably, a flow straightening cover (13) is fixedly attached to the opening side of the disk (1), and the central axis of the opening of the flow straightening cover (13) coincides with the central axis of the rotary shaft (2).

[0009] Preferably, a support frame (3) is provided on one side of the disk (1), a plurality of diagonal struts (31) are fixedly attached between the support frame (3) and the edge of the disk (1), a motor is provided on the support frame (3), and the output end of the motor is fixedly connected to the rotating shaft (2). [Effects of the Invention]

[0010] The present invention provides the following beneficial effects: 1. When the concave section rises, it stores and stirs the sand for sorting. The concave structure allows the sand to flow toward the middle section, providing a certain storage space and lengthening the path the sand travels on the sieve, thus extending the sorting time and resulting in a better sorting effect. 2. As the arc-shaped blade descends, the convex section guides large particles to slide out the side opening, while the concave section guides large particles to be discharged from the side opening. This accelerates the large particles and promotes their separation and discharge from the side opening. The inclination angle of the convex section and the curvature of the concave section work together to form a two-way acceleration passage, providing sufficient discharge power for large particles of different sizes and shapes. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram of the overall structure of the concrete material sorting device according to the present invention. [Figure 2] FIG. 2 is a schematic diagram of the arc-shaped blade structure of the concrete material sorting device according to the present invention. [Figure 3] FIG. 3 is a schematic diagram of the support frame structure of the concrete material sorting device according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention, in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are not all embodiments, but only some embodiments of the present invention. Needless to say, any other embodiments that a person skilled in the art can obtain based on the embodiments of the present invention without any creative ingenuity will fall within the scope of the claims of the present invention. [Example]

[0013] As shown in Figures 1 to 3, the concrete material sorting device includes a disk (1), a rotating shaft (2), and a support frame (3), and each component works together to sort sand and accelerate the discharge of large-sized particles. The top of the disk (1) is provided with an opening, and the opening is set at an angle upward. This inclined structure prevents sand from spilling out when it is poured in. The sieve mesh (11) is located at the bottom of the disk (1) and is made of woven, wear-resistant steel wire. The pore size is designed according to the mixing ratio, which can efficiently separate acceptable sand from large-sized materials and can withstand long-term friction and impact, thereby extending the service life.

[0014] The side openings (12) are provided on the side of the disk (1) and close to the bottom, and are used for the selective discharge of large-sized materials. The edges of the side openings (12) are arc-shaped to prevent the large-sized materials from getting caught when they are discharged and to reduce energy loss. The rotating shaft (2) is rotatably mounted at the central axis of the disk (1), with one end passing through the sieve screen (11) and capable of rotating about its central axis. The rotating shaft (2) is driven by a power source and its rotation speed can be varied, and by adjusting it as necessary, it promotes the discharge of the subsequent large-particle-size materials from the side openings (12).

[0015] The arc-shaped blades (21) are evenly spaced around the periphery of the rotating shaft (2), and one side of the blades is in soft contact with the sieve screen (11) or has a small gap between them, allowing the blades to stir up the sand. Each arc-shaped blade (21) has a convex surface (211) and a concave surface (212). Here, the rotation direction of the rotating shaft (2) is from the convex portion (211) to the concave portion (212), and the opening position of the side opening (12) is located on the downward side of the arc-shaped blades (21). This coordinated design of the rotation direction and the position of the side opening (12) allows the combined action of gravity and centrifugal force generated by the rotation of the arc-shaped blades (21) to quickly move large-sized materials toward the side opening (12), preventing them from accumulating within the disk (1).

[0016] A sand holding area is formed between two adjacent arc-shaped blades (21) and the rotating shaft (2). This temporary holding area can transport some of the sand to the top, and when it is at the top, the sand is located at the root of the arc-shaped blades (21) in the temporary holding area, which is advantageous for separation and discharge along the subsequent convex portion (211) and concave portion (212). The volume of the temporary holding area has been optimized, and the cyclic up and down movement disperses and drops the sand, increasing the contact area and contact time between the sand and the sieve (11) and improving sorting accuracy.

[0017] As the concave portion (212) ascends, it stores and agitates the sand for sorting. The concave structure allows the sand to flow toward its center, providing a certain amount of storage space and lengthening the path the sand travels on the sieve screen (11), extending the sorting time and resulting in a more effective sorting effect. As the arc-shaped blades (21) descend, the convex portion (211) guides larger particles to slide out of the side openings (12), while the concave portion (212) guides the larger particles to be discharged from the side openings (12). This accelerates the larger particles, facilitating their separation and discharge from the side openings (12). The inclination angle of the convex portion (211) and the curvature of the concave portion (212) work together to form a two-way acceleration path, providing sufficient discharge power for large particles of different sizes and shapes.

[0018] A small gap is provided between the free end of the arc-shaped blade (21) and the disk (1), preventing contact with the arc-shaped blade (21) and preventing large-sized particles from becoming trapped in the gap and affecting the rotation of the arc-shaped blade (21). The arc-shaped blade (21)'s center trajectory is located on a circular surface at half the diameter of the sieve screen (11). This arrangement allows the arc-shaped blade (21) to uniformly cover the entire surface of the sieve screen (11) as it rotates, eliminating blind spots in the sorting process. At the same time, the force exerted on the sand on the sieve screen (11) is uniform, improving sorting consistency and expanding the sorting space for the sand, promoting free movement and sorting of the sand.

[0019] A square pipe is fixedly attached to the side opening (12) through which the opening passes, and the width of the side opening (12) is equal to the width of the free ends of the two arc-shaped blades (21). This dimensionally matching design allows essentially all of the large-particle materials in the corresponding area to be introduced into the side opening (12) with each rotation of the arc-shaped blades (21), reducing the problems of blockage and discharge leakage caused by width mismatch. A straightening cover (13) is fixed to the opening of the disk (1), and its central axis coincides with that of the rotating shaft (2). It accurately guides the sand into the center of the disk (1), reducing accumulation on the edges and ensuring a uniform distribution of the sand on the sieve (11), improving sorting efficiency. At the same time, the straightening cover (13) prevents foreign objects from falling into the device, preventing impurities from being mixed into the sand and affecting concrete quality. It also suppresses dust generation during the sand-adding and sorting processes, reducing dust pollution, improving the working environment, and protecting the health of workers.

[0020] A support frame (3) is mounted on one side of the disk (1), and a number of diagonal struts (31) are fixedly attached between the support frame (3) and the edge of the disk (1). A motor is mounted on the support frame (3), and its output end is fixedly connected to the rotating shaft (2). A variable speed motor is selected for the motor, and the rotation speed can be flexibly adjusted according to the characteristics of the sand, such as humidity and grain size. At the same time, a rigid connection is used between the motor and the rotating shaft (2), resulting in high transmission efficiency and low energy loss. Speed ​​adjustment makes it easy to discharge large-sized materials.

[0021] The technical scope of the present invention is not limited to the content described above, and those skilled in the art may make various modifications and alterations to the above embodiments without departing from the technical spirit of the present invention, and all such modifications and alterations shall fall within the scope of protection of the present invention. [Explanation of symbols]

[0022] 1: disk; 2: rotating shaft; 3: support frame; 11: sieve; 12: side opening; 13: straightening cover; 21: arc-shaped blade; 211: convex portion; 212: concave portion; 31: diagonal support

Claims

1. A disk (1) having an opening at the top and an opening disposed obliquely upward; A sieve mesh (11) provided at the bottom of the disk (1) and used to separate sand; a side opening (12) provided on a side surface of the disk (1) and in a position adjacent to the lower side thereof; a rotating shaft (2) rotatably provided at the central axis position of the disk (1); a plurality of arc-shaped blades (21) evenly arranged on the circumferential side of the rotating shaft (2), one side of which contacts the sieve screen (11), and each of which includes a convex surface portion (211) and a concave surface portion (212); Equipped with the rotation direction of the rotary shaft (2) is from the convex surface portion (211) to the concave surface portion (212), and the opening position of the side opening (12) is located on the downward side of the arc-shaped blade (21); When the concave portion (212) rises, it stores and agitates the sand material for sorting; when the arc-shaped blade (21) descends, the convex portion (211) guides the large-sized material to slide out of the side opening (12), and the concave portion (212) guides the large-sized material to be discharged from the side opening (12). A concrete material sorting device characterized by the above.

2. A gap is provided between the free end of the arc-shaped blade (21) and the disk (1), and the movement locus of the center position of the arc-shaped blade (21) is located on a circular surface at a position half the diameter of the sieve screen (11).

2. The concrete material sorting device according to claim 1.

3. A square pipe is fixedly attached to the side opening (12) through the side opening (12), and the width of the side opening (12) is equal to the width of the free ends of the two arc-shaped blades (21).

2. The concrete material sorting device according to claim 1.

4. A rectifying cover (13) is fixedly attached to the opening side of the disk (1), and the central axis of the opening of the rectifying cover (13) coincides with the central axis of the rotating shaft (2).

2. The concrete material sorting device according to claim 1.

5. A support frame (3) is provided on one side of the disk (1), and a plurality of diagonal struts (31) are fixedly attached between the support frame (3) and the edge of the disk (1). A motor is provided on the support frame (3), and the output end of the motor is fixedly connected to the rotating shaft (2).

2. The concrete material sorting device according to claim 1.

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