Quartz sand multi-stage screening device

Abstract

The utility model relates to the technical field of quartz sand screening, in particular to a quartz sand multi-stage screening device which comprises an equipment shell and a screening structure, the equipment shell comprises a screening barrel, and a screening tray moving groove is fixedly formed in the side surface of the screening barrel; the screening structure comprises a basic shaft, eccentric wheels are fixedly installed at the upper end and the lower end of the basic shaft, the eccentric wheel at the upper end of the basic shaft is fixedly connected with the output end of a first motor, and the side surface of the basic shaft is fixedly sleeved with a first-stage screening disc, a second-stage screening disc and a third-stage screening disc which are slidably clamped in a screening disc moving groove. According to the quartz sand screening device, the first motor is started to drive the basic shaft to do eccentric rotation motion through the eccentric wheel, then the basic shaft drives all the screening discs to do eccentric rotation motion, and quartz sand is spread and screened in a transverse rotation mode; and the quartz sand particles with different particle sizes are dispersed by utilizing different radial acting forces generated by centrifugal force generated by rotary motion on the quartz sand particles with different sizes, so that the screening effect is improved.

Description

A multi-stage screening device for quartz sand Technical Field

[0001] This utility model relates to the field of quartz sand screening technology, specifically a multi-stage quartz sand screening device. Background Technology

[0002] Quartz sand is quartz particles produced by crushing and processing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. It is an important industrial mineral raw material, a non-hazardous chemical, and is widely used in glass, casting, ceramics and refractory materials, ferrosilicon smelting, metallurgical solvents, metallurgy, construction and other industries. During the processing of quartz sand, screening equipment is needed to classify quartz sand particles of different sizes.

[0003] Current screening methods often use a screen to screen by vertically shaking it up and down. This requires providing sufficient space for the quartz sand particles to vibrate. The vibrating structure needs to directly participate in supporting the quartz sand pile and directly bear the weight of the quartz sand pile. This will disperse some of the power of the vibrating structure, affecting the working effect. Furthermore, due to the impact during the up and down shaking, it may collide with the inner wall of the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage quartz sand screening device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-stage quartz sand screening device includes:

[0007] The equipment housing includes a screening cylinder, and a plurality of movable slots for the screening discs are fixedly installed on the side surface of the screening cylinder.

[0008] The screening structure includes a base shaft, with eccentric wheels fixedly installed at both ends of the base shaft. The eccentric wheel at the upper end of the base shaft is fixedly connected to the output end of a motor fixedly installed in the middle of the upper surface of the screening cylinder. A primary screening disc, a secondary screening disc, and a tertiary screening disc are fixedly sleeved on the side surface of the base shaft and slidably engaged in the movable groove of the screening disc.

[0009] The discharge gate is fixedly sleeved on the edges of the primary screening disc, the secondary screening disc, and the tertiary screening disc.

[0010] Furthermore, the device housing also includes:

[0011] The discharge hopper is fixedly installed at the bottom opening of the screening cylinder;

[0012] A bottom support is fixedly installed at the opening of the discharge hopper.

[0013] Support legs are fixedly installed on the edge of the side surface of the discharge hopper.

[0014] The feed hopper is fixedly installed on one edge of the upper surface of the screening cylinder.

[0015] Furthermore, the device housing also includes:

[0016] The guide ring is fixedly sleeved on the side surface of the movable groove of the screen plate, and the upper and lower sides of the guide ring are fixedly connected to the top edge and bottom edge of the movable groove of the screen plate, respectively.

[0017] The discharge slope is located at the bottom of the outlet ring.

[0018] The movable groove slot is located in the middle of the discharge slope bottom and is fixedly connected to the bottom of the movable groove of the screen plate.

[0019] The discharge port is located on one side of the lower edge of the inclined guide ring.

[0020] Furthermore, the screening structure further includes:

[0021] The disc support base is a third disc support base, and the three disc support bases are fixedly sleeved on the side surface of the base shaft. The primary screening disc, the secondary screening disc and the tertiary screening disc are fixedly sleeved on the side surface of the base shaft through the disc support bases.

[0022] The beveled frame is fixedly fitted onto the edges of the primary screening disc, the secondary screening disc, and the tertiary screening disc;

[0023] The No. 2 motor is embedded inside the lower half of the disk support base;

[0024] The gear is fixedly installed at the output end of motor number two.

[0025] Furthermore, the discharge gate includes:

[0026] The inner surface of the disk body frame is fixedly sleeved with the outer surface of the inclined frame;

[0027] The outlets are arranged at equal angles and interspersed on the side surface of the disk frame;

[0028] A gate movable groove is provided on the upper and lower sides and one side surface of the outlet;

[0029] The connecting rod movable slots are arranged at equal angles on the lower edge of the inner edge of the disc frame and are interconnected with the gate movable slots.

[0030] A sealing gate, wherein the sealing gate is slidably engaged inside the movable groove of the gate.

[0031] Furthermore, the discharge gate further includes:

[0032] A connecting rod, one end of which passes through a connecting rod movable groove and is fixedly connected to the middle of the bottom side of the sealing gate plate;

[0033] A base ring is rotatably sleeved on the lower half of the side surface of the disc support base, and the side surface of the base ring is fixedly connected to the other end of each connecting rod.

[0034] An internal gear ring is fixedly installed on the inner side of the opening on the base ring, and the internal gear ring meshes with the gear.

[0035] Compared with the prior art, the beneficial effects of this utility model are:

[0036] 1. Start motor No. 1 to drive the base shaft to rotate eccentrically via the eccentric wheel. The base shaft then drives each screening disc to rotate eccentrically, spreading the quartz sand in a transverse rotation and performing screening. The centrifugal force generated by the rotation creates different radial forces on quartz sand particles of different sizes, dispersing the quartz sand particles of different sizes and improving the screening effect. The quartz sand passing through the primary screening disc is then dispersed and screened by the secondary and tertiary screening discs in sequence, achieving multi-stage screening.

[0037] 2. At the beginning of the operation of the whole device, each discharge port is closed by sealing gate. When the discharge hopper no longer discharges small particles of quartz sand, each No. 2 motor is started to rotate the gear, which in turn rotates the base ring by rubbing the internal gear ring. The connecting rod synchronously controls each sealing gate to slide in the gate's movable groove, opening the discharge port. The quartz sand intercepted in each screening disc passes through the discharge port and enters the discharge ring under the action of centrifugal force, and is discharged through each relatively independent channel. Attached Figure Description

[0038] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0039] Figure 2 is a schematic diagram of the device casing in this utility model;

[0040] Figure 3 is a schematic diagram of the lead-out ring in this utility model;

[0041] Figure 4 is a schematic diagram of the screening structure in this utility model;

[0042] Figure 5 is a schematic diagram of the discharge gate in this utility model.

[0043] In the diagram: 1. Equipment casing; 101. Screening cylinder; 102. Screening disc movable groove; 103. Discharge hopper; 104. Bottom support; 105. Support leg column; 106. Guide ring; 107. Discharge inclined bottom; 108. Movable groove slot; 109. Discharge port; 110. Feed hopper; 2. Screening structure; 201. Base shaft; 202. Eccentric wheel; 203. Motor No. 1; 204. Disc body Support base; 205, primary screening disc; 206, secondary screening disc; 207, tertiary screening disc; 208, inclined frame; 209, No. 2 motor; 210, gear; 3, discharge gate; 301, disc frame; 302, discharge port; 303, gate movable groove; 304, connecting rod movable groove; 305, sealing gate; 306, connecting rod; 307, base ring; 308, internal gear ring. Detailed Implementation

[0044] 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.

[0045] Please refer to Figures 1-5. In this embodiment of the present invention, a multi-stage quartz sand screening device includes a housing 1, a screening structure 2, and a discharge gate 3. The housing 1 includes a screening cylinder 101, and a plurality of screen disc movable grooves 102 are fixedly installed on the side surface of the screening cylinder 101. The screening structure 2 includes a base shaft 201, and eccentric wheels 202 are fixedly installed at the upper and lower ends of the base shaft 201. The eccentric wheel 202 at the upper end of the base shaft 201 is fixedly connected to the output end of a motor 203 fixedly installed in the middle of the upper surface of the screening cylinder 101. A primary screening disc 205, a secondary screening disc 206, and a tertiary screening disc 207 are fixedly sleeved on the side surface of the base shaft 201 and slidably engaged in the screen disc movable grooves 102. The discharge gate 3 is fixedly sleeved on the edge of the primary screening disc 205, the secondary screening disc 206, and the tertiary screening disc 207.

[0046] Specifically, the quartz sand to be screened is fed into the screening cylinder 101 from top to bottom, and first piled on the upper surface of the primary screening disc 205. At this time, the No. 1 motor 203 is started, which drives the base shaft 201 to rotate eccentrically through the eccentric wheel 202. Then, the base shaft 201 drives each screening disc to rotate eccentrically, spreading the quartz sand in a transverse rotation and performing screening. The centrifugal force generated by the rotation produces different radial forces on quartz sand particles of different sizes, which disperses the quartz sand of different sizes and improves the screening effect. The quartz sand passing through the primary screening disc 205 is then dispersed and screened by the secondary screening disc 206 and the tertiary screening disc 207 in sequence to achieve multi-stage screening.

[0047] Example 1

[0048] As shown in Figure 2, in this embodiment, the equipment housing 1 also includes a discharge hopper 103, a bottom bracket 104, a support leg column 105, and a feed hopper 110. The discharge hopper 103 is fixedly installed at the bottom opening of the screening cylinder 101; the bottom bracket 104 is fixedly installed at the top opening of the discharge hopper 103; the support leg column 105 is fixedly installed at the edge of the side surface of the discharge hopper 103; and the feed hopper 110 is fixedly installed at one edge of the upper surface of the screening cylinder 101.

[0049] In this embodiment, the quartz sand to be screened is poured into the screening cylinder 101 from the feed hopper 110. After being screened through the primary screening disc 205, the secondary screening disc 206 and the tertiary screening disc 207, the quartz sand is discharged from the discharge hopper 103.

[0050] As shown in Figures 1-3, in this embodiment, the equipment housing 1 further includes a guide ring 106, a discharge inclined bottom 107, a movable groove slot 108, and a discharge port 109. The guide ring 106 is fixedly sleeved on the side surface of the movable groove 102 of the screen plate, and the upper and lower sides of the guide ring 106 are fixedly connected to the top edge and bottom edge of the movable groove 102 of the screen plate, respectively. The discharge inclined bottom 107 is opened in the inner bottom of the guide ring 106. The movable groove slot 108 is opened in the middle of the discharge inclined bottom 107, and the movable groove slot 108 is fixedly connected to the bottom of the movable groove 102 of the screen plate. The discharge port 109 is opened on one side of the lower edge of the inclined bottom of the guide ring 106.

[0051] In practice, the quartz sand intercepted by the screening discs at each level moves laterally to the edge of the screening disc under the action of centrifugal force, and enters the discharge ring 106 through the discharge gate 3. It is then guided by the discharge inclined bottom 107 to the discharge port 109 and discharged directly.

[0052] Example 2

[0053] Based on Example 1, in order to supplement the specific method of quartz sand moving laterally from the screening discs of each stage, passing through the discharge gate 3, entering the discharge ring 106 and being discharged, which was not mentioned in Example 1.

[0054] As shown in Figures 2-5, in this embodiment, the screening structure 2 further includes a disc support 204, an inclined frame 208, a second motor 209, and a gear 210. The disc support 204 is the third type, and the three disc support 204s are fixedly sleeved on the side surface of the base shaft 201. The primary screening disc 205, secondary screening disc 206, and tertiary screening disc 207 are fixedly sleeved on the side surface of the base shaft 201 via the disc support 204s. The inclined frame 208 is fixedly sleeved at the edges of the primary screening disc 205, secondary screening disc 206, and tertiary screening disc 207. The second motor 209 is embedded inside the lower half of the disc support 204. The gear 210 is fixedly installed at the output end of the second motor 209. The discharge gate 3 includes a disc frame 301, a discharge outlet 302, a gate plate movable groove 303, a connecting rod movable groove 304, a sealing gate 305, a connecting rod 306, and a base ring 3. 07 and internal gear ring 308, the middle of the inner surface of the disc frame 301 is fixedly sleeved with the outer surface of the inclined frame 208; the outlet 302 is arranged at equal angles and interspersed on the side surface of the disc frame 301; the gate movable groove 303 is opened on the upper and lower sides and one side surface of the outlet 302; the connecting rod movable groove 304 is arranged at equal angles on the lower edge of the inner edge of the disc frame 301 and is interconnected with the gate movable groove 303; the sealing gate 305 is slidably engaged in the inside of the gate movable groove 303; one end of the connecting rod 306 passes through the connecting rod movable groove 304 and is fixedly connected to the middle of the bottom side of the sealing gate 305; the base ring 307 is rotatably sleeved on the lower half side surface of the disc support seat 204, and the side surface of the base ring 307 is fixedly connected to the other end of each connecting rod 306; the internal gear ring 308 is fixedly installed on the inner side of the opening on the base ring 307, and the internal gear ring 308 meshes with the gear 210.

[0055] In specific implementation, at the beginning of the operation of the overall device, each discharge port 302 is closed by the sealing gate 305. When the discharge hopper 103 no longer discharges small particles of quartz sand, each No. 2 motor 209 is started to rotate the gear 210, which in turn rotates the base ring 307 by the internal gear ring 308. The connecting rod 306 synchronously controls each sealing gate 305 to slide in the gate movable groove 303, opening the discharge port 302. The quartz sand intercepted in each screening disc passes through the discharge port 302 under the action of centrifugal force and enters the discharge ring 106, and is discharged through each relatively independent channel.

[0056] 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.

[0057] 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 multi-stage quartz sand screening device, characterized in that, include: The equipment housing (1) includes a screening cylinder (101), on which a plurality of screen disc movable grooves (102) are fixedly installed; and a screening structure (2) includes a base shaft (201), on which eccentric wheels (202) are fixedly installed at the upper and lower ends. The eccentric wheel (202) at the upper end of the base shaft (201) is fixedly installed with the screen disc movable grooves (102) on the screening cylinder (101). The output end of the No. 1 motor (203) in the middle of the upper surface is fixedly connected, and the side surface of the base shaft (201) is fixedly sleeved with a first-stage screening disc (205), a second-stage screening disc (206) and a third-stage screening disc (207) that are slidably engaged in the movable groove (102) of the screening disc; and a discharge gate (3) that is fixedly sleeved on the edge of the first-stage screening disc (205), the second-stage screening disc (206) and the third-stage screening disc (207).

2. The multi-stage quartz sand screening device according to claim 1, characterized in that, The equipment housing (1) further includes: a discharge hopper (103), which is fixedly installed at the bottom opening of the screening cylinder (101); a bottom bracket (104), which is fixedly installed at the upper opening of the discharge hopper (103); a support leg (105), which is fixedly installed at the edge of the side surface of the discharge hopper (103); and a feed hopper (110), which is fixedly installed at one edge of the upper surface of the screening cylinder (101).

3. The multi-stage quartz sand screening device according to claim 2, characterized in that, The device housing (1) further includes: a guide ring (106), which is fixedly sleeved on the side surface of the screen plate movable groove (102), and the upper and lower sides of the guide ring (106) are fixedly connected to the top edge and bottom edge of the screen plate movable groove (102) respectively; a discharge slope (107), which is opened in the inner bottom of the guide ring (106); a movable groove slot (108), which is opened in the middle of the discharge slope (107), and the movable groove slot (108) is fixedly connected to the bottom of the screen plate movable groove (102); and a discharge port (109), which is opened on one side of the lower edge of the guide ring (106).

4. The multi-stage quartz sand screening device according to claim 3, characterized in that, The screening structure (2) further includes: a disc support base (204), the number of which is the third, and the three disc support bases (204) are fixedly sleeved on the side surface of the base shaft (201). The first-stage screening disc (205), the second-stage screening disc (206) and the third-stage screening disc (207) are fixedly sleeved on the side surface of the base shaft (201) through the disc support bases (204); a beveled frame (208), which is fixedly sleeved on the edge of the first-stage screening disc (205), the second-stage screening disc (206) and the third-stage screening disc (207); a second motor (209), which is embedded in the lower half of the disc support base (204); and a gear (210), which is fixedly installed at the output end of the second motor (209).

5. The multi-stage quartz sand screening device according to claim 4, characterized in that, The discharge gate (3) includes: a disc frame (301), the middle of the inner surface of the disc frame (301) is fixedly sleeved with the outer surface of the inclined frame (208); a discharge outlet (302), the discharge outlet (302) is arranged at equal angles and interspersed on the side surface of the disc frame (301); a gate plate movable groove (303), the gate plate movable groove (303) is opened on the upper and lower sides and one side surface of the discharge outlet (302); a connecting rod movable groove (304), the connecting rod movable groove (304) is arranged at equal angles on the lower edge of the inner edge of the disc frame (301) and is interconnected with the gate plate movable groove (303); and a sealing gate (305), the sealing gate (305) is slidably engaged inside the gate plate movable groove (303).

6. The multi-stage quartz sand screening device according to claim 5, characterized in that, The discharge gate (3) further includes: a connecting rod (306), one end of which passes through the connecting rod movable groove (304) and is fixedly connected to the bottom center of the sealing gate (305); a base ring (307), which is rotatably sleeved on the lower half side surface of the disc support base (204), and the side surface of the base ring (307) is fixedly connected to the other end of each connecting rod (306); and an internal gear ring (308), which is fixedly installed on the inner side of the opening on the base ring (307), and the internal gear ring (308) meshes with the gear (210).

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