Discharging and screening device of photovoltaic silica sand ball mill

Abstract

The utility model discloses a discharging and screening device of a photovoltaic silica sand ball mill, which relates to the technical field of photovoltaic silica sand processing equipment and comprises a screening box, a multi-stage screening plate, a collecting box and an auxiliary discharging mechanism, and the multi-stage screening plate sequentially comprises a fine screening plate, a middle screening plate and a coarse screening plate from top to bottom. The fine sieve plate, the middle sieve plate and the coarse sieve plate are all fixedly installed in the screening box in an inclined mode, the auxiliary discharging mechanism is arranged on the screening box, and discharging of residual materials on the multiple stages of sieve plates is achieved. By arranging the fine sieve plate, the middle sieve plate and the coarse sieve plate, materials can be accurately graded according to the particle size, the screening precision is effectively improved, by arranging the auxiliary discharging mechanism, the sieve plates in the screening box can vibrate, the materials remaining on the sieve plates are loosened and fall into the corresponding collecting boxes, and the screening efficiency is improved. The residue of the materials on the sieve plate is further reduced, the problem of sieve hole blockage caused by material accumulation is avoided, and the normal operation of the multi-stage sieve plate is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic silicon sand processing equipment, and more specifically, to a discharge screening device for a photovoltaic silicon sand ball mill. Background Technology

[0002] In the production of photovoltaic silica sand, ball mills are indispensable and crucial equipment. They grind the silica sand raw material to the required particle size to meet the requirements of subsequent production processes. The screening process after the ball mill discharge plays a vital role in the entire production flow. The quality of screening directly affects not only the particle size uniformity and purity of the silica sand product, thus influencing the quality and performance of photovoltaic products, but also has a significant impact on production efficiency. Inaccurate screening will result in silica sand of different particle sizes being mixed together, potentially requiring additional separation processes in subsequent production steps. This undoubtedly increases production costs and time.

[0003] Existing screening devices mostly use a single screen plate, which cannot accurately classify materials of different particle sizes. This results in inconsistent particle sizes within the material, affecting the efficiency and quality of subsequent processes. Furthermore, existing screening devices are prone to material accumulation and screen hole blockage during the screening process, making it difficult for the screen plate to feed material smoothly and further affecting the continuous operation of the screening device. To address these problems, this device was invented. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a discharge screening device for a photovoltaic silicon sand ball mill to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a discharge screening device for a photovoltaic silicon sand ball mill, comprising:

[0006] The screening box has an inlet and an outlet fixedly installed at the top and bottom, respectively.

[0007] The multi-stage sieve plate, from top to bottom, includes a fine sieve plate, a medium sieve plate, and a coarse sieve plate. The fine sieve plate, medium sieve plate, and coarse sieve plate are all installed in an inclined fixed position inside the screening box.

[0008] There are three collection boxes, all of which are slidably connected to the screening box and are respectively located below the fine screen plate, the medium screen plate and the coarse screen plate.

[0009] An auxiliary discharge mechanism is installed on the screening box to discharge residual materials from the multi-stage screen plates.

[0010] Furthermore, both the inlet and outlet are conical structures.

[0011] Furthermore, the tops of the three collection boxes are respectively attached to the bottoms of the fine sieve plate, the medium sieve plate, and the coarse sieve plate.

[0012] Furthermore, the auxiliary discharge mechanism includes a bracket fixedly installed on the screening box, a vertical plate fixedly installed on the bracket, a movable rod slidably connected to the vertical plate, an impact block fixedly installed on the end of the movable rod near the screening box, a stop block fixedly installed on the end of the movable rod away from the screening box, and a spring provided on the movable rod, with the spring fixedly installed between the vertical plate and the stop block.

[0013] Furthermore, a base is fixedly installed on the bracket, a motor is installed on the base, a drive shaft is rotatably installed on the base, and the output shaft of the motor is connected to the drive shaft, and a cam is fixedly installed on the drive shaft.

[0014] Furthermore, the impact block has a hemispherical structure, and the stop block has a frustum-shaped structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, by setting up fine, medium, and coarse sieve plates with gradually increasing apertures in each layer, can accurately classify materials according to particle size, dividing them into three categories: minimum, medium, and maximum particle size. This effectively improves screening accuracy. Furthermore, the sieve plates are installed at an angle, allowing materials to slide smoothly along the inclined direction, preventing material accumulation on the plates, reducing screening time, and increasing screening efficiency. An auxiliary discharge mechanism composed of a motor, drive shaft, and cams vibrates the sieve plates within the screening box, loosening any remaining material and causing it to fall into the corresponding collection box. This further reduces material residue on the sieve plates, preventing clogging caused by material accumulation and ensuring the normal operation of the multi-stage sieve system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a structural schematic diagram of the present invention;

[0019] Figure 2 The structural front view provided for this utility model;

[0020] Figure 3 Rear view of the structure provided for this utility model;

[0021] Figure 4Top view of the structure provided for this utility model;

[0022] Figure 5 Provided by this utility model Figure 4 An enlarged schematic diagram of region A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Screening box; 2. Feed inlet; 3. Discharge outlet; 4. Fine screen plate; 5. Medium screen plate; 6. Coarse screen plate; 7. Collection box; 8. Auxiliary discharge mechanism; 801. Support; 802. Vertical plate; 803. Moving rod; 804. Impact block; 805. Stop block; 806. Spring; 807. Motor; 808. Drive shaft; 809. Cam; 810. Base. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] See attached document Figures 1-5 The discharge screening device of a photovoltaic silicon sand ball mill in this embodiment includes a screening box 1, a multi-stage sieve plate, a collection box 7 and an auxiliary discharge mechanism 8, which can realize multi-stage screening of materials.

[0028] See attached document Figure 3 The top and bottom of the screening box 1 are respectively fixedly installed with a feed inlet 2 and a discharge outlet 3. Both the feed inlet 2 and the discharge outlet 3 are conical structures. The conical structure of the feed inlet 2 and the discharge outlet 3 helps the material to be smoothly introduced and discharged, reducing the possibility of material accumulation and blockage.

[0029] See attached document Figure 1 and Figure 3The multi-stage sieve plate system consists of a fine sieve plate 4, a medium sieve plate 5, and a coarse sieve plate 6, arranged from top to bottom. The aperture of each sieve plate gradually increases. The fine sieve plate 4, medium sieve plate 5, and coarse sieve plate 6 are all fixedly installed in the screening box 1 at an incline. The fine sieve plate 4 is inclined towards the medium sieve plate 5. This incline design facilitates the sliding of materials and prevents them from accumulating on the sieve plate. The medium sieve plate 5 is inclined towards the coarse sieve plate 6, and the coarse sieve plate 6 is inclined towards the discharge port 3. The fine sieve plate 4 and the coarse sieve plate 6 are located on the same side. By using sieve plates with different apertures, materials can be classified and screened. The fine sieve plate 4 screens out the smallest particle size, the medium sieve plate 5 screens out the medium particle size, and the coarse sieve plate 6 screens out the largest particle size. Through step-by-step screening, materials can be accurately classified according to particle size, improving screening efficiency and accuracy.

[0030] See attached document Figure 1 and Figure 3 There are three collection boxes 7, all of which are slidably connected to the screening box 1 and are respectively located below the fine screen plate 4, the medium screen plate 5 and the coarse screen plate 6. The collection boxes 7 are set at an angle, and the tops of the three collection boxes 7 are respectively attached to the bottoms of the fine screen plate 4, the medium screen plate 5 and the coarse screen plate 6 to ensure that the material can fall smoothly into the collection box 7 and avoid the material from scattering. The three collection boxes 7 collect the material after it has been screened by the fine screen plate 4, the medium screen plate 5 and the coarse screen plate 6.

[0031] See attached document Figure 2 , Figure 4 and Figure 5 An auxiliary discharge mechanism 8 is installed on the screening box 1 to discharge residual materials on the multi-stage screen plates. The auxiliary discharge mechanism 8 includes a bracket 801 fixedly installed on the screening box 1, a vertical plate 802 fixedly installed on the bracket 801, and the bracket 801 and the vertical plate 802 are vertically arranged. A moving rod 803 is slidably connected to the vertical plate 802, and the moving rod 803 is vertically arranged with the vertical plate 802. An impact block 804 is fixedly installed on the end of the moving rod 803 near the screening box 1. The impact block 804 has a hemispherical structure. A stop block 805 is fixedly installed on the end of the moving rod 803 away from the screening box 1. The stop block 805 has a frustum-shaped structure. A spring 806 is provided on the rod 803, and the spring 806 is fixedly installed between the upright plate 802 and the stop block 805. A base 810 is fixedly installed on the bracket 801. A motor 807 is provided on the base 810. A drive shaft 808 is rotatably installed on the base 810, and the output shaft of the motor 807 is connected to the drive shaft 808. When in use, the motor 807 is turned on, and the output shaft of the motor 807 drives the drive shaft 808 to rotate. A cam 809 is fixedly installed on the drive shaft 808. The cam 809 rotates synchronously with the drive shaft 808. During the rotation, the near end and far end of the cam 809 intermittently contact the stop block 805.

[0032] In this embodiment, the material enters the screening box 1 through the conical feed inlet 2 and first contacts the fine screen plate 4. Since the fine screen plate 4 has the smallest aperture, fine materials fall through the screen holes into the collection box 7 below. Materials that do not pass through the fine screen plate 4 slide along its inclined direction to the middle screen plate 5. The middle screen plate 5 has a larger aperture than the fine screen plate 4, so medium-sized materials fall through the screen holes into the collection box 7 below. Materials that do not pass through the middle screen plate 5 continue to slide to the coarse screen plate 6. The coarse screen plate 6 has the largest aperture, so larger materials fall through the screen holes into the collection box 7 below. Simultaneously, during the screening process, some materials can... Material may remain on the screen plate. At this time, the motor 807 is turned on. The output shaft of the motor 807 drives the transmission shaft 808 and the cam 809 to rotate. The eccentric design of the cam 809 and the design of the spring 806 and the cam 809 will cause the moving rod 803 to reciprocate on the vertical plate 802, so that the impact block 804 reciprocates to impact the screening box 1, causing the fine screen plate 4, the medium screen plate 5 and the coarse screen plate 6 in the screening box 1 to vibrate, so that the residual material is loosened and falls into the corresponding collection box 7. The material after screening and auxiliary discharge is stored in the three collection boxes 7 respectively. It is taken out by pulling out the collection box 7, while the material that does not pass through the three screen plates is discharged through the discharge port 3 at the bottom of the screening box 1.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A discharge screening device for a photovoltaic silicon sand ball mill, characterized in that, include: Screening box (1), the top and bottom of the screening box (1) are respectively fixedly installed with inlet (2) and outlet (3); The multi-stage sieve plate includes, from top to bottom, a fine sieve plate (4), a medium sieve plate (5), and a coarse sieve plate (6). The fine sieve plate (4), the medium sieve plate (5), and the coarse sieve plate (6) are all fixedly installed in the screening box (1) at an incline. Collection box (7), three collection boxes (7) are provided, all of which are slidably connected to the screening box (1) and are respectively located below the fine screen plate (4), the medium screen plate (5) and the coarse screen plate (6); An auxiliary discharge mechanism (8) is provided on the screening box (1) to discharge the residual material on the multi-stage screen plate.

2. A discharge screening device for a photovoltaic silicon sand ball mill as claimed in claim 1, characterized in that: Both the feed inlet (2) and the discharge outlet (3) are conical structures.

3. A discharge screening device for a photovoltaic silicon sand ball mill as claimed in claim 1, characterized in that: The tops of the three collection boxes (7) are respectively attached to the bottoms of the fine sieve plate (4), the medium sieve plate (5) and the coarse sieve plate (6).

4. A discharge screening device for a photovoltaic silicon sand ball mill as claimed in claim 1, wherein: The auxiliary discharge mechanism (8) includes a bracket (801) fixedly installed on the screening box (1), a vertical plate (802) fixedly installed on the bracket (801), a moving rod (803) slidably connected on the vertical plate (802), an impact block (804) fixedly installed on one end of the moving rod (803) near the screening box (1), a stop block (805) fixedly installed on one end of the moving rod (803) away from the screening box (1), a spring (806) provided on the moving rod (803), and the spring (806) fixedly installed between the vertical plate (802) and the stop block (805).

5. A discharge screening device for a photovoltaic silicon sand ball mill as claimed in claim 4, wherein: A base (810) is fixedly installed on the bracket (801). A motor (807) is provided on the base (810). A transmission shaft (808) is rotatably installed on the base (810). The output shaft of the motor (807) is connected to the transmission shaft (808). A cam (809) is fixedly installed on the transmission shaft (808).

6. A discharge screening device for a photovoltaic silicon sand ball mill as claimed in claim 4, wherein: The impact block (804) has a hemispherical structure, and the stop block (805) has a frustum-shaped structure.

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