High-efficiency secondary screening device for quartz sand pre-screening

Abstract

The utility model relates to quartz sand screening technical field, specifically is a kind of quartz sand pre-screening high -efficient secondary screening device, including base, bottom frame is fixedly installed on the base, screening mechanism is fixedly installed between the bottom frame and upper frame, discharging mechanism is fixed on the bottom frame and upper frame, the discharging mechanism includes discharge hopper and discharge pipe, discharge hopper is fixedly connected on the bottom frame and upper frame, the discharge pipe is fixedly installed in the bottom end of discharge hopper, the lateral wall of discharge pipe is fixedly connected with fixed frame, hanging rod is fixedly installed on the fixed frame, the top of upper frame is fixedly installed with feeding mechanism;Two handles of aggregate bag can be hung on hanging rod to limit aggregate bag, and then fixed frame supports aggregate bag, which is conducive to preventing the bag body from falling off after frequent vibration by fixing aggregate bag at the discharge hopper of rotary-vibration screen with adhesive tape, thereby causing material to be thrown.

Description

Technical Field

[0001] This utility model relates to a screening device, specifically a high-efficiency secondary screening device for pre-screening of quartz sand, belonging to the field of quartz sand screening technology. Background Technology

[0002] Quartz is a non-metallic mineral, primarily composed of silicon dioxide. Quartz sand is quartz particles produced by crushing and screening quartz. Quartz sand is chemically stable, insoluble in acids, and possesses high refractoriness. Secondary screening is a crucial step in the processing of minerals like quartz sand to improve product quality. This grading screening method produces high-quality quartz sand products with more uniform particle size distribution, meeting the requirements of various applications. Ultrasonic vibrating screens can serve as efficient secondary screening devices after the initial screening of quartz sand.

[0003] However, when using a vibrating screen to screen quartz sand, operators often use tape to attach the collection bag or bag handle to the side wall of the discharge hopper when collecting the material discharged from the outlet. Because the equipment vibrates during use, the tape is prone to falling off the discharge hopper after frequent vibration, which can easily cause the discharged material to spill onto the ground. Utility Model Content

[0004] The purpose of this invention is to provide a highly efficient secondary screening device for pre-screening of quartz sand in order to solve the above problems. Hanging the two handles of the collection bag on the hanging rod can limit the position of the collection bag, thereby allowing the fixing frame to support the collection bag. This helps to prevent the collection bag from falling off after frequent vibration when it is fixed to the discharge hopper of the vibrating screen with tape, which would cause the bag to spill.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a high-efficiency secondary screening device for pre-screening of quartz sand, comprising a base, a bottom frame fixedly installed on the base, a screening mechanism fixedly installed between the bottom frame and the upper frame, a feeding mechanism fixedly installed on both the bottom frame and the upper frame, the feeding mechanism comprising a discharge hopper and a discharge pipe, the discharge hopper fixedly connected to both the bottom frame and the upper frame, the discharge pipe fixedly installed at the bottom end of the discharge hopper, a fixing frame fixedly connected to the side wall of the discharge pipe, a hanging rod fixedly installed on the fixing frame, and a feeding mechanism fixedly installed at the top end of the upper frame.

[0006] Preferably, the discharge hopper is internally connected to the bottom frame and the top frame, and the discharge pipe is located at the end of the discharge hopper away from the bottom frame and the top frame.

[0007] Preferably, the two hanging rods are symmetrically arranged at the bottom of the fixed frame, and the end of the hanging rod opposite to the fixed frame is arranged in a spherical structure.

[0008] Preferably, the screening mechanism includes a frame and a screen plate, the frame is fixedly installed between the bottom frame and the upper frame, the screen plate is fitted inside the frame, and a screen mesh is fixedly connected inside the screen plate.

[0009] Preferably, the diameter of the top end of the card frame is larger than the diameter of the bottom end of the card frame, and the part where the sieve plate engages with the card frame is set with an inclined structure.

[0010] Preferably, the feeding mechanism includes a feeding hopper and a dust cover, with the dust cover fixedly installed on the upper frame and the feeding hopper fixedly connected to the dust cover.

[0011] Preferably, the feeding hopper is arranged with an inclined surface, and the dust cover is arranged with an arc surface.

[0012] Preferably, the feeding mechanism further includes a filter screen, and the bottom end of the dust cover is fixedly installed with the filter screen. The feeding hopper is connected to the interior of the upper frame through the filter screen.

[0013] The beneficial effects of this utility model are as follows: After screening, the quartz sand falls into the interior of the upper and lower frames. When the vibrating screen is started, the base drives the quartz sand inside the equipment to vibrate, thereby causing the screened quartz sand to be discharged into the discharge pipe through the discharge hopper. The operator hangs the two handles of the collection bag on the hanging rod. Since the two hanging rods are symmetrically installed at both ends of the fixed frame, and the fixed frame is installed on the side wall of the discharge pipe, when the two handles of the collection bag are hung on the hanging rod, the collection bag can be supported. This helps to prevent the bag from being easily detached from the discharge hopper after being frequently vibrated by the vibrating screen when it is fixed to the discharge hopper with tape, thus causing the quartz sand to spill. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the dust cover and the filter screen of this utility model;

[0016] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.

[0017] Figure 4 This is a schematic diagram of the connection structure between the discharge hopper and the discharge pipe of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the bottom frame and the card frame of this utility model;

[0019] Figure 6 This is a schematic diagram of the connection structure between the sieve disc and the sieve mesh of this utility model.

[0020] In the diagram: 1. Base; 2. Bottom frame; 3. Top frame; 4. Screening mechanism; 401. Frame; 402. Screen plate; 403. Screen; 5. Feeding mechanism; 501. Discharge hopper; 502. Discharge pipe; 503. Fixing frame; 504. Hanging rod; 6. Feeding mechanism; 601. Feeding hopper; 602. Dust cover; 603. Filter screen. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-6 As shown, a high-efficiency secondary screening device for pre-screening of quartz sand includes a base 1, a bottom frame 2 fixedly installed on the base 1, a screening mechanism 4 fixedly installed between the bottom frame 2 and the upper frame 3, and a feeding mechanism 5 fixedly installed on both the bottom frame 2 and the upper frame 3. The feeding mechanism 5 includes a discharge hopper 501 and a discharge pipe 502. The discharge hopper 501 is fixedly connected to both the bottom frame 2 and the upper frame 3, and the discharge pipe 502 is fixedly installed at the bottom end of the discharge hopper 501. The discharge pipe 502 is located at the end of the discharge hopper 501 away from the bottom frame 2 and the upper frame 3. Since the two discharge hoppers 501 are respectively connected to the interior of the upper frame 3 and the bottom frame 2, the screened quartz sand can be discharged through the discharge hopper 501 into the discharge pipe 502. A fixing frame 503 is fixedly connected to the side wall of the discharge pipe 502. A hanging rod 504 is fixedly installed on the fixing frame 503. The end of the hanging rod 504 away from the fixing frame 503 is spherical. The two handles of the collection bag are hung on the hanging rod 504. Since the two hanging rods 504 are symmetrically installed at both ends of the fixing frame 503, and the fixing frame 503 is installed on the side wall of the discharge pipe 502, the collection bag can be supported when the two handles of the collection bag are hung on the hanging rod 504. This helps to prevent the bag from falling off the discharge hopper 501 after being fixed to the discharge hopper 501 with tape, which would cause the quartz sand to spill. A feeding mechanism 6 is fixedly installed at the top of the upper frame 3.

[0023] As a technical optimization of this utility model, the screening mechanism 4 includes a frame 401 and a screen plate 402. The frame 401 is fixedly installed between the bottom frame 2 and the upper frame 3. The diameter of the top end of the frame 401 is larger than the diameter of the bottom end of the frame 401. The screen plate 402 is installed inside the frame 401. The part where the screen plate 402 and the frame 401 are engaged is set with an inclined structure. A screen mesh 403 is fixedly connected inside the screen plate 402. The quartz sand can be screened again through the screen mesh 403 installed inside the screen plate 402. The screened material can be conveyed into the discharge hopper 501 when the equipment vibrates.

[0024] As a technical optimization of this utility model, the feeding mechanism 6 includes a feeding hopper 601 and a dust cover 602. The dust cover 602 is fixedly installed on the upper frame 3. When the vibrating screen is started, the base 1 drives the bottom frame 2 and the upper frame 3 to vibrate. The dust cover 602 vibrates with the upper frame 3. When the filter screen 603 vibrates, it can screen the quartz sand, thereby trapping larger particles of quartz sand inside the dust cover 602. The dust cover 602 is designed with an arc surface structure. A feeding hopper 601 is fixedly connected to the dust cover 602. A filter screen 603 is fixedly installed at the bottom of the dust cover 602. Quartz sand that needs to be screened a second time can be poured into the dust cover 602 through the feeding hopper 601. Since the feeding hopper 601 is set with an inclined structure, the quartz sand can fall down the inner wall of the feeding hopper 601 to the top of the filter screen 603 fixed inside the dust cover 602. The feeding hopper 601 is connected to the interior of the upper frame 3 through the filter screen 603.

[0025] In use, this invention firstly allows the quartz sand requiring secondary screening to be poured into the feeding hopper 601 installed at the top of the dust cover 602. Because the feeding hopper 601 has an inclined structure, the quartz sand falls along the inner wall of the feeding hopper 601 onto the top of the filter screen 603 fixed inside the dust cover 602. When the control switch of the vibrating screen is turned on, the machine base 1 drives the bottom frame 2 and the upper frame 3 to vibrate. The dust cover 602, fixed to the top of the upper frame 3, vibrates along with the upper frame 3. The filter screen 603, vibrating with the upper frame 3, screens the quartz sand. Larger particles of quartz sand are trapped inside the dust cover 602, while the screened quartz sand is located inside the upper frame 3. A retaining frame 401 is fixed between the upper frame 3 and the bottom frame 2, and a screen plate 402 is engaged within the retaining frame 401. The quartz sand passes through the screen plate 402... The screen 403 installed inside 02 can screen the quartz sand again. The screened material can be conveyed into the discharge hopper 501 when the equipment vibrates. Since the two discharge hoppers 501 are fixed to the side walls of the upper frame 3 and the bottom frame 2 respectively, the screened quartz sand is discharged into the discharge pipe 502 through the discharge hopper 501. At this time, the operator hangs the two handles of the collection bag on the hanging rod 504. Since the two hanging rods 504 are symmetrically installed at both ends of the fixing frame 503, and the fixing frame 503 is installed on the side wall of the discharge pipe 502, when the two handles of the collection bag are hung on the hanging rod 504, the collection bag can be supported. This helps to prevent the bag from being easily detached from the discharge hopper 501 after the frequent vibration of the vibrating screen when the bag is fixed at the discharge hopper 501 with tape, thus causing the quartz sand to spill.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency secondary screening device for pre-screening of quartz sand, comprising a base (1), characterized in that: A bottom frame (2) is fixedly installed on the base (1). A screening mechanism (4) is fixedly installed between the bottom frame (2) and the upper frame (3). A feeding mechanism (5) is fixedly installed on both the bottom frame (2) and the upper frame (3). The feeding mechanism (5) includes a discharge hopper (501) and a discharge pipe (502). A discharge hopper (501) is fixedly connected to both the bottom frame (2) and the upper frame (3). A discharge pipe (502) is fixedly installed at the bottom end of the discharge hopper (501). A fixing frame (503) is fixedly connected to the side wall of the discharge pipe (502). A hanging rod (504) is fixedly installed on the fixing frame (503). A feeding mechanism (6) is fixedly installed at the top end of the upper frame (3).

2. The high-efficiency secondary screening device for pre-screening of quartz sand according to claim 1, characterized in that: The discharge hopper (501) is internally connected to the bottom frame (2) and the upper frame (3), and the discharge pipe (502) is located at the end of the discharge hopper (501) away from the bottom frame (2) and the upper frame (3).

3. The high-efficiency secondary screening device for pre-screening of quartz sand according to claim 1, characterized in that: The two hanging rods (504) are symmetrically arranged at the bottom of the fixed frame (503), and the end of the hanging rod (504) facing away from the fixed frame (503) is arranged in a spherical structure.

4. The high-efficiency secondary screening device for pre-screening of quartz sand according to claim 1, characterized in that: The screening mechanism (4) includes a frame (401) and a screen plate (402). The frame (401) is fixedly installed between the bottom frame (2) and the upper frame (3). The screen plate (402) is fitted inside the frame (401). A screen mesh (403) is fixedly connected inside the screen plate (402).

5. The high-efficiency secondary screening device for pre-screening of quartz sand according to claim 4, characterized in that: The diameter of the top of the card frame (401) is greater than the diameter of the bottom of the card frame (401), and the part where the sieve plate (402) engages with the card frame (401) is set with an inclined structure.

6. The high-efficiency secondary screening device for pre-screening of quartz sand according to claim 1, characterized in that: The feeding mechanism (6) includes a feeding hopper (601) and a dust cover (602). The dust cover (602) is fixedly installed on the upper frame (3), and the feeding hopper (601) is fixedly connected to the dust cover (602).

7. The high-efficiency secondary screening device for pre-screening of quartz sand according to claim 6, characterized in that: The feeding hopper (601) is arranged with an inclined surface, and the dust cover (602) is arranged with an arc surface.

8. The high-efficiency secondary screening device for pre-screening of quartz sand according to claim 6, characterized in that: The feeding mechanism (6) also includes a filter screen (603). The bottom end of the dust cover (602) is fixedly installed with the filter screen (603). The feeding hopper (601) is connected to the interior of the upper frame (3) through the filter screen (603).

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