A multi-stage laboratory asphalt particle screening machine

Abstract

The utility model relates to the technical field of laboratory pitch particle screening, specifically to a pitch particle multistage screening machine for laboratory. Including sieve cover, multilayer sieve box, sieve base, sieve platform and linear drive arrangement, the multilayer sieve box is stacked by multiple independent sieve boxes, and each sieve box is internally provided with a screen, the bottom sieve box is fixed to the sieve base, and the top sieve box covers the sieve cover, the sieve platform is provided with a sliding rail, the sieve base is provided with a corresponding sliding groove, and the sliding groove is installed on the sliding rail, the linear drive arrangement is connected with the sieve base, and the linear drive arrangement drives the sieve base to reciprocate along the sliding rail, realizing multistage mechanized screening of pitch particles.

Description

Technical Field

[0001] This utility model relates to the field of laboratory asphalt particle screening technology, specifically a laboratory asphalt particle multi-stage screening machine. Background Technology

[0002] Asphalt particles are one of the important raw materials for C / C composite materials. They are particles produced by grinding and screening solid asphalt. The particle size of asphalt particles directly affects the thermal insulation performance of C / C composite materials. Therefore, selecting asphalt particles with appropriate and uniform particle size is crucial for manufacturing thermal insulation products.

[0003] Currently, when sieving asphalt particles in the laboratory, manual sieving using sieves is required. Since the experiment requires asphalt particles of various sizes, multiple sieves with different apertures are needed. This necessitates multiple people performing the sieving work, increasing labor costs. Furthermore, manual sieving is inefficient, cannot meet experimental requirements, prolongs the experimental cycle, and reduces overall efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a laboratory asphalt particle multi-stage screening machine to realize multi-stage mechanized screening of asphalt particles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A laboratory-grade asphalt particle multi-stage sieving machine includes a sieve cover, a multi-layer sieve box, a sieving base, a sieving platform, and a linear drive device. The multi-layer sieve box is composed of multiple independent sieve boxes stacked together, and each sieve box has a sieve mesh inside. The bottom sieve box is fixed to the sieving base, and the top sieve box is covered with the sieve cover. The sieving platform is provided with a slide rail, and the sieving base is provided with a corresponding slide groove, which is installed on the slide rail. The linear drive device is connected to the sieve base and drives the sieve base to reciprocate along the slide rail.

[0007] Furthermore, the screen cover has a ball-shaped knob at the center of its upper surface and a downward-bent edge around its perimeter.

[0008] Furthermore, the sieve box includes a sieve cylinder and a sieve screen, with the sieve screen fixed to the inner side of the lower end of the sieve cylinder; the sieve cylinders of each sieve box in the multi-layer sieve box have the same size, and the sieve screen aperture of each sieve box in the multi-layer sieve box decreases progressively from top to bottom.

[0009] Furthermore, the sieve cylinder is a cylindrical body; the sieve mesh is a circular flat plate with evenly distributed sieve holes.

[0010] Furthermore, the main body of the screening base is a rectangular box, with handles and fixing rods on two opposite sides of the box, and sliding grooves on the other two opposite sides.

[0011] Furthermore, the slide is a rectangular through hole, and the top surface of the box is provided with a circular through hole.

[0012] Furthermore, the screening platform includes a rectangular frame, support legs, slide rails, and a discharge port; the slide rails are fixed to the upper part of the rectangular frame, the support legs are fixed to the four corners of the bottom of the rectangular frame, the hopper is fixed to the middle of the bottom of the rectangular frame, and the bottom of the hopper is provided with a discharge port.

[0013] Furthermore, the slide rail is provided with a rectangular notch for mounting and fixing the slide rail to the rectangular frame.

[0014] Furthermore, the linear drive device is a cylinder, a hydraulic cylinder, or an electric push rod.

[0015] Compared with the prior art, the present invention has at least the following technical effects or advantages:

[0016] 1. This utility model features a multi-layer sieve box composed of multiple independent sieve boxes stacked together, each sieve box containing a screen. The bottom sieve box is fixed to the sieve base, and the top sieve box is covered with a sieve cover. The sieve platform is equipped with a slide rail, and the sieve base has a corresponding slide groove installed on the slide rail. A linear drive device is connected to the sieve base, driving the sieve base to move back and forth along the slide rail, achieving multi-stage sieving of asphalt particles. This utility model replaces manual sieving of asphalt particles, achieving complete mechanization, significantly reducing labor costs, and greatly alleviating the workload of operators. It can simultaneously sieve asphalt particles of various sizes, significantly improving the sieving efficiency of asphalt particles required for experiments. Its simple structure makes it easy to manufacture, operate, and maintain, meeting the laboratory's demand for asphalt particles, significantly shortening experimental waiting time and experimental cycles.

[0017] 2. In this multi-layer sieve box, the mesh size of each sieve box decreases progressively from top to bottom, which can quickly remove large particles, reduce the load layer by layer, and ensure smooth material flow. The finest, most fragile, and most expensive fine sieve is located at the bottom layer to protect the precision sieve. The progressively decreasing mesh size ensures that each sieve layer can effectively and accurately classify the materials it receives, thus improving the compactness and stability of the equipment.

[0018] 3. The screen cover of this utility model has a ball knob at the center of its upper surface, providing a safe and reliable force-bearing point located at the center of gravity, which greatly facilitates the operator's grip and application of force, ensuring operational safety. A downward-bent edge ensures a tight seal.

[0019] 4. The screening base of this utility model is equipped with a handle. The operation of the equipment is not limited to mechanical automation. It can also be manually operated by using the handle to drive the multi-layer screen box to slide back and forth on the slide rail to screen asphalt particles.

[0020] 5. The slide rail of this utility model has a rectangular notch for mounting and fixing the slide rail to the rectangular frame, which facilitates the positioning and installation of the slide rail. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the sieve box of this utility model.

[0023] Figure 3 This is a three-dimensional structural diagram of the screening base of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the screening platform of this utility model (excluding the slide rail).

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the slide rail of this utility model.

[0026] In the diagram: 1. Screen cover; 2. Screen box; 3. Screening base; 4. Screening platform; 5. Electric push rod; 6. Support; 11. Ball knob; 21. Screen cylinder; 22. Screen mesh; 23. Screen hole; 24. Baffle; 31. Fixing rod; 32. Handle; 33. Slide groove; 34. Circular through hole; 41. Rectangular frame; 42. Support leg; 43. Slide rail; 44. Hopper; 45. Discharge port; 46. Rectangular notch. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. 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.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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 are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0033] like Figure 1-5 As shown, a laboratory asphalt particle multi-stage screening machine includes a screen cover 1, a multi-layer screen box 2, a screening base 3, a screening platform 4, and a linear drive device. The main parts of the screen cover 1, the multi-layer screen box 2, the screening base 3, and the screening platform 4 are made of stainless steel. In this embodiment, the linear drive device is an electric push rod 5.

[0034] In this embodiment, the multi-layer screen box consists of five independent screen boxes 2 stacked vertically. The bottom screen box (the lowest screen box) is fixed to the screening base 3, and the top screen box (the highest screen box) is covered by the screen cover 1. A ball knob 11 is located at the center of the upper surface of the screen cover 1, and the edge has a downward-bent edge. When installing the screen cover 1, the bent edge is inserted into the inside of the screen box 2, and the outer diameter of the bent edge matches the inner diameter of the screen box 2. The ball knob 11 provides a safe, reliable force point located at the center of gravity, greatly facilitating the operator's grip and application of force, ensuring operational safety. The downward-bent edge ensures a tight seal.

[0035] like Figure 2 As shown, the sieve box 2 includes a sieve cylinder 21 and a sieve screen 22. The sieve cylinder 21 is a cylindrical body with a retaining edge 24 on its outer wall. The sieve screen 22 is a circular flat plate with evenly distributed sieve holes 23. The sieve screen 22 is fixed to the inner side of the lower end of the sieve cylinder 21. When installing the sieve cover 1, the folded edge is inserted into the inner side of the sieve cylinder 21, and the outer diameter of the folded edge matches the inner diameter of the sieve cylinder 21.

[0036] The screen mesh 22 of each of the five-layer screen boxes has a progressively smaller aperture 23 from top to bottom, which can quickly remove large particles, reduce the load layer by layer, and ensure smooth material flow. The finest, most fragile, and most expensive fine screen is located at the bottom layer to protect the precision screen. The progressively smaller aperture ensures that each layer of screen can effectively and accurately classify the materials it receives, thus improving the compactness and stability of the equipment.

[0037] like Figure 3As shown, the main body of the screening base 3 is a rectangular box. A fixing rod 31 is located on the front side of the box, and a handle 32 is located on the rear side. Two sliding grooves 33 are located on each of the left and right sides; each groove 33 is a rectangular through hole. A circular through hole 34 is located on the top surface of the box. The diameter of the circular through hole 34 is larger than the outer diameter of the screen cylinder 21 but smaller than the diameter of the retaining edge 24. The bottom screen box is placed inside the circular through hole 34, its position determined and fixed by the retaining edge 24; similarly, five independent screen boxes 2 are stacked vertically and are detachable. The equipment operation is not limited to mechanical automation; manual operation is also possible by using the handle 31 to drive the multi-layer screen boxes to reciprocate and slide on the slide rail 43 to screen asphalt particles.

[0038] like Figure 4 , Figure 5 As shown, the screening platform 4 includes a rectangular frame 41, support legs 42, slide rails 43, and a hopper 44. Two slide rails 43 are parallel to each other and fixed to the left and right sides of the rectangular frame 41. The slide rails 43 are made of square tubing, and both ends of the slide rails 43 have rectangular notches 46 corresponding to the sides of the rectangular frame 41. During installation, the rectangular notches 46 are inserted into the sides of the rectangular frame 41. The two slide rails 43 pass through the grooves 33 of the screening base 3, and are fixed to the left and right sides of the rectangular frame 41 at both ends. The screening base 3 slides along the slide rails 43.

[0039] The support legs 42 are made of square tubing and are fixed to the four corners of the bottom of the rectangular frame 41. The hopper 44 is fixed to the middle of the bottom of the rectangular frame and is located inside the four support legs 42. The hopper 44 is a hollow frustum-shaped hopper with a cylindrical discharge port 45 at the bottom.

[0040] The electric push rod 5 is set horizontally, and the base of the electric push rod 5 is fixed to the bracket 6. The push rod head of the electric push rod 5 is provided with a fixing hole, and the fixing rod 31 passes through the fixing hole and is fixed by a pin.

[0041] The working principle and process of this utility model are as follows:

[0042] Open the screen cover 1, put the asphalt particles into the top screen box, close the screen cover 1, and the electric push rod 5 extends and retracts, causing the screening base 3 and the five-layer screen boxes to slide back and forth on the slide rail 43, screening the asphalt particles in the top screen box. Asphalt particles with a particle size smaller than the screen holes of the top screen box fall onto the screen of the lower screen box for further screening.

[0043] Similarly, the finest asphalt particles slide from the hopper 44 of the screening platform 4 to the discharge port 45, where a container can be placed to collect them. After the asphalt particle screening is complete, the five screen boxes 2 are disassembled to collect the asphalt particles from each screen box 2. The number of screen boxes 2 is not limited to five; it can be set according to the type of asphalt particles required for the experiment. The equipment operation is not limited to mechanical automation; manual operation is also possible by using handles 32 to drive the screening platform 4 and the multi-stage screen boxes to reciprocate and slide on the slide rails 43 to screen the asphalt particles.

[0044] This invention can replace manual sieving of asphalt particles, achieving full mechanization, significantly reducing labor costs, and greatly alleviating the workload of operators; it can simultaneously sieve asphalt particles of multiple sizes, greatly improving the sieving efficiency of asphalt particles required for experiments; it has a simple structure, is easy to manufacture, operate and maintain, and can meet the laboratory's demand for asphalt particles, significantly shortening experimental waiting time and experimental cycle.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1.A laboratory asphalt particle multi-stage screening machine, characterized in that: it comprises a screen cover, a multi-layer screen box, a screening base, a screening platform and a linear drive device; the multi-layer screen box is formed by stacking a plurality of independent screen boxes, each of which is internally provided with a screen mesh; the bottom screen box is fixed to the screening base, and the top screen box covers the screen cover; the screening platform is provided with a sliding rail, and the screening base is provided with a sliding groove corresponding thereto, which is installed on the sliding rail; the linear drive device is connected to the screening base, and the linear drive device drives the screening base to move back and forth along the sliding rail. 2.The laboratory asphalt particle multi-stage screening machine according to claim 1, characterized in that: a knob is arranged at the center of the upper surface of the screen cover, and a bent edge is arranged around the knob. 3.The laboratory asphalt particle multi-stage screening machine according to claim 1, characterized in that: the screen box comprises a screen cylinder and a screen mesh, and the screen mesh is fixed to the inner side of the lower end of the screen cylinder; the screen cylinders of the screen boxes in the multi-layer screen box are of the same size, and the screen meshes of the screen boxes in the multi-layer screen box are gradually reduced in size from top to bottom. 4.The laboratory asphalt particle multi-stage screening machine according to claim 3, characterized in that: the screen cylinder is a cylindrical body, and the screen mesh is a circular flat plate with uniformly distributed screen holes. 5.The laboratory asphalt particle multi-stage screening machine according to claim 1, characterized in that: the main body of the screening base is a rectangular box, two opposite sides of the box are provided with handles and fixing rods, and the other two opposite sides are provided with sliding grooves. 6.The laboratory asphalt particle multi-stage screening machine according to claim 5, characterized in that: the sliding groove is a rectangular through hole, and the top surface of the box is provided with a circular through hole. 7.The laboratory asphalt particle multi-stage screening machine according to claim 1, characterized in that: the screening platform comprises a rectangular frame, a supporting leg, a sliding rail and a hopper; the sliding rail is fixed to the upper part of the rectangular frame, the supporting leg is fixed to the bottom corners of the rectangular frame, the hopper is fixed to the middle of the bottom of the rectangular frame, and the hopper is provided with a discharge port at the bottom. 8.The laboratory asphalt particle multi-stage screening machine according to claim 7, characterized in that: the sliding rail is provided with a rectangular notch for installing and fixing the sliding rail to the rectangular frame. 9.The laboratory asphalt particle multi-stage screening machine according to claim 1, characterized in that: the linear drive device is a pneumatic cylinder, a hydraulic cylinder or an electric push rod.

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