Quartz sand classification screening device

Abstract

The utility model discloses a quartz sand grading screening device which comprises a machine frame, a rotary screening barrel, a feeding hopper, a spraying cleaning mechanism, a first receiving hopper, a vibrating mechanism, a second receiving hopper and a spiral feeder, the rotary screening barrel is provided with a first screening area and a second screening area in the length direction of the rotary screening barrel, and the spraying cleaning mechanism is arranged above the first screening area. The vibrating mechanism is arranged on the first receiving hopper, and the feeding end of the spiral feeder is located below the discharging end of the first receiving hopper. The rotary screening barrel is provided with the first screening area and the second screening area, the first screening area can be used for screening out fine-particle quartz sand, the first screening area is used for screening out large-particle quartz sand, and therefore accurate grading screening of the quartz sand is achieved; in the screening process, the spraying and cleaning mechanism can spray water to wash the quartz sand in the rotary screening barrel, so that impurities are removed, the fluidity of the quartz sand is improved, particle adhesion is avoided, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of quartz sand screening, in particular to a quartz sand grading and screening device. Background Art

[0002] Quartz sand is quartz particles made by crushing quartz stone. Quartz stone, also known as silica, is a silicate mineral with hard texture, wear resistance and stable chemical properties. It exists in nature as quartz sandstone, quartzite and vein quartz. Quartz sand is an important industrial mineral raw material and is widely used in glass, casting, ferrosilicon smelting, metallurgy, construction, chemical industry, rubber, abrasives, filter materials and other industrial fields.

[0003] In the existing technology, quartz sand needs to be screened during the production process to ensure that the particle size of the product meets the requirements; however, the screening equipment on the market has difficulty in achieving graded screening when processing large quantities of quartz sand; in addition, quartz sand often contains impurities such as dust and mud, and these smaller impurities will also adhere to the quartz sand during the screening process, thereby affecting the purity of the finished quartz sand and reducing product quality.

[0004] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a quartz sand grading and screening device which has high screening efficiency and can clean quartz sand.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a quartz sand grading and screening device, comprising a frame, a rotary screening drum, a feed hopper, a spray cleaning mechanism, a first receiving hopper, a vibration mechanism, a second receiving hopper and a spiral feeder;

[0007] The rotary screening drum is arranged on the top of the frame, and a rotary driving mechanism is provided at the end of the rotary screening drum, and the rotary driving mechanism is used to drive the rotary screening drum to rotate;

[0008] The rotary screening drum is provided with a first screening area and a second screening area along its length direction. The rotary screening drum located in the first screening area is provided with a first screen hole, and the rotary screening drum located in the second screening area is provided with a second screen hole. The first screen hole is smaller than the second screen hole.

[0009] The feed hopper is provided at one end of the rotary screening drum close to the first screening area, and is used to supply quartz sand to the rotary screening drum. The spray cleaning mechanism is provided above the first screening area, and is used to flush the quartz sand in the first screening area.

[0010] The first receiving hopper is tiltedly arranged below the first screening area, and is used to receive the quartz sand falling from the first screening area. The second receiving hopper is tiltedly arranged below the second screening area, and is used to receive the quartz sand falling from the second screening area.

[0011] The vibration mechanism is provided on the first receiving hopper to drive the first receiving hopper to vibrate. The feeding end of the screw feeder is located below the discharging end of the first receiving hopper. The screw feeder is used to transport quartz sand.

[0012] According to the above technical solution, in the quartz sand grading and screening device, the spray cleaning mechanism includes a spray pipe, a water inlet pipe, a water pump, a water outlet pipe and a water receiving trough;

[0013] The water receiving trough is arranged below the first receiving hopper, and the first receiving hopper is provided with a plurality of water leakage holes, and the water leakage holes are used to guide the water in the first receiving hopper into the water receiving trough;

[0014] The water inlet end of the water pump is connected to the water receiving trough through the water inlet pipe, and the water outlet end of the water pump is connected to the spray pipe through the water outlet pipe. The spray pipe is located above the first screening area, and the spray pipe is provided with a plurality of nozzles along the length direction of the rotating screening drum.

[0015] According to the above technical solution, in the quartz sand grading and screening device, the rotary screening drum is tilted at the top of the frame, and the height of the rotary screening drum gradually decreases from the first screening area to the second screening area.

[0016] According to the above technical solution, in the quartz sand grading and screening device, the vibration mechanism includes a vibration motor and a spring connecting arm;

[0017] The vibration motor is arranged on the first material receiving hopper, the bottom end of the spring connecting arm is hinged to the first material receiving hopper, and the top end of the spring connecting arm is connected to the frame.

[0018] Using the above technical solution, the quartz sand grading and screening device also includes a third receiving hopper. The end of the rotary screening cylinder away from the feed hopper is a hollow part. The third receiving hopper is arranged at the side end of the hollow part to receive the quartz sand falling from the tail of the rotary screening cylinder.

[0019] According to the above technical solution, in the quartz sand grading and screening device, the rotary drive mechanism includes a drive motor, a pulley transmission assembly, a rotating shaft and a connecting frame;

[0020] The rotating shaft is connected to the rotating screening drum through the connecting frame, and the driving motor is connected to the end of the rotating shaft through the pulley transmission assembly to drive the rotating shaft to rotate.

[0021] Using the above technical solution, in the quartz sand grading and screening device, a partition filter is provided on the water receiving trough, and the partition filter is used to separate the water receiving trough into a first chamber and a second chamber. The first chamber is located below the leakage hole, and the water suction end of the water inlet pipe is located in the second chamber.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The utility model is provided with a first screening area and a second screening area on the rotary screening drum. The first screening area can be used to screen out finer particles of quartz sand, and the second screening area is used to screen out larger particles of quartz sand, thereby realizing accurate grading and screening of quartz sand so that the product particle size meets the requirements; during the screening process, the spray cleaning mechanism can spray water to flush the quartz sand in the rotary screening drum to remove impurities and increase the fluidity of the quartz sand, avoid particle adhesion, and improve screening efficiency; the vibration mechanism is provided on the first receiving hopper, and can keep the quartz sand in a loose state through vibration to prevent clogging; by arranging a water leakage hole on the first receiving hopper, water can be diverted to the water receiving trough through the water leakage hole, thereby realizing water recycling and reducing production costs; the overall structure is compact, and has the beneficial effects of high screening efficiency, practicality and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0028] Figure 3 It is a schematic diagram of the overall structure of the back side of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] like Figures 1 to 3 As shown, the embodiment of the present invention provides a quartz sand grading and screening device, including a frame 1, a rotary screening drum 2, a feed hopper 3, a spray cleaning mechanism 4, a first receiving hopper 51, a vibration mechanism 6, a second receiving hopper 52 and a screw feeder 7;

[0033] The rotary screening drum 2 is arranged on the top of the frame 1, and a rotary driving mechanism 21 is provided at the end of the rotary screening drum 2. The rotary driving mechanism 21 is used to drive the rotary screening drum 2 to rotate. The rotary screening drum 2 is provided with a first screening area 201 and a second screening area 202 along its length direction. The rotary screening drum 2 located on the first screening area 201 is provided with a first sieve hole, and the rotary screening drum 2 located on the second screening area 202 is provided with a second sieve hole. The first sieve hole is smaller than the second sieve hole. Such an arrangement can realize the graded screening of quartz sand, that is, the first sieve hole of the first screening area 201 can be used to screen out finer quartz sand particles, and the second sieve hole of the second screening area 202 can be used to screen out larger particles of quartz sand. This graded screening method can effectively separate quartz sands of different particle sizes, so that the particle size of the screened quartz sand meets the requirements.

[0034] The feed hopper 3 is provided at one end of the rotary screening drum 2 close to the first screening area 201. The feed hopper 3 is used to supply quartz sand to the rotary screening drum 2. The spray cleaning mechanism 4 is provided above the first screening area 201. The spray cleaning mechanism 4 is used to flush the quartz sand in the first screening area 201. By spraying and flushing the quartz sand at the initial stage of screening, impurities are removed, the accuracy of screening is improved, and impurities are prevented from mixing into quartz sand of different particle sizes. At the same time, the fluidity of the quartz sand can be increased through the impact of the water flow, and the quartz sand can be prevented from adhering to the inside of the rotary screening drum 2 or adhering to each other, thereby improving the screening efficiency.

[0035] The first receiving hopper 51 is tilted and arranged below the first screening area 201. The first receiving hopper 51 is used to receive the quartz sand falling from the first screening area 201. The second receiving hopper 52 is tilted and arranged below the second screening area 202. The second receiving hopper 52 is used to receive the quartz sand falling from the second screening area 202. The vibration mechanism 6 is arranged on the first receiving hopper 51 to drive the first receiving hopper 51 to vibrate. The feeding end of the spiral feeder 7 is located below the discharging end of the first receiving hopper 51. The spiral feeder 7 is used to transport quartz sand. By tilting the first receiving hopper 51 and the second receiving hopper 52 below the first screening area 201 and the second screening area 202, respectively, quartz sand of different particle sizes falling from different screening areas can be received to achieve graded material collection and avoid mixing. The vibration mechanism 6 can maintain the quartz sand in a loose flow state through vibration, so that it flows more smoothly to the outlet of the first receiving hopper 51, thereby improving the conveying and screening efficiency; and the spiral feeder 7 can automatically convey the quartz sand particles with smaller particle size to the next processing equipment, thereby improving production efficiency.

[0036] like Figure 1 and Figure 3As shown, further, the spray cleaning mechanism 4 includes a spray pipe 41, a water inlet pipe 42, a water pump 43, a water outlet pipe 44 and a water receiving trough 45, the water receiving trough 45 is arranged below the first receiving hopper 51, and the first receiving hopper 51 is provided with a plurality of leakage holes 510, the leakage holes 510 are used to divert the water in the first receiving hopper 51 to the water receiving trough 45, the water inlet end of the water pump 43 is connected to the water receiving trough 45 through the water inlet pipe 42, and the water outlet end of the water pump 43 is connected to the spray pipe 41 through the water outlet pipe 44, the spray pipe 41 is located above the first screening area 201, and the spray pipe 41 is provided with a plurality of nozzles 411 along the length direction of the rotary screening drum 2. By setting a leaking hole 510 on the first receiving hopper 51, water can be diverted to the water receiving tank 45 through the leaking hole 510 to form a water circulation system, that is, the water pump 43 draws water from the water receiving tank 45, sprays and rinses the quartz sand through the spray pipe 41, and the sprayed water then flows back to the water receiving tank 45 through the leaking hole 510, thereby realizing the recycling of water and reducing production costs.

[0037] Furthermore, the rotary screening drum 2 is tilted at the top of the frame 1, and the height of the rotary screening drum 2 gradually decreases from the first screening area 201 to the second screening area 202. This arrangement allows the quartz sand to naturally slide down along the inclined surface of the rotary screening drum 2 for screening during the screening process.

[0038] like Figure 1 and Figure 2 As shown, the vibration mechanism 6 further includes a vibration motor 61 and a spring connecting arm 62. The vibration motor 61 is provided on the first receiving hopper 51. The bottom end of the spring connecting arm 62 is hinged to the first receiving hopper 51, and the top end of the spring connecting arm 62 is connected to the frame 1. The vibration motor 61 can drive the first receiving hopper 51 to vibrate, thereby preventing the quartz sand from being blocked or retained in the first receiving hopper 51.

[0039] like Figure 2 As shown, a third receiving hopper 53 is further included. The end of the rotary screening drum 2 away from the feed hopper 3 is a hollow portion. The third receiving hopper 53 is provided at the side end of the hollow portion to receive the quartz sand falling from the tail of the rotary screening drum 2. Large particles of quartz sand that have not been screened will accumulate at the tail of the rotary screening drum 2. By providing a hollow portion at the tail of the rotary screening drum 2, large particles of quartz sand can be smoothly discharged from the tail into the third receiving hopper 53 for collection, thereby avoiding accumulation of tail material and ensuring continuous and efficient operation of the rotary screening drum 2.

[0040] like Figure 1As shown, further, the rotation drive mechanism 21 includes a drive motor 211, a pulley transmission assembly 212, a rotating shaft 213 and a connecting frame 214. The rotating shaft 213 is connected to the rotating screening drum 2 through the connecting frame 214. The drive motor 211 is connected to the end of the rotating shaft 213 through the pulley transmission assembly 212 to drive the rotating shaft 213 to rotate. The rotating screening drum 2 can rotate with the rotation of the rotating shaft 213, prompting the quartz sand particles to continuously flip over in the rotating screening drum 2, thereby improving the screening efficiency.

[0041] like Figure 1 As shown, further, a partition filter 450 is provided on the water receiving trough 45, and the partition filter 450 is used to separate the water receiving trough 45 into a first chamber 451 and a second chamber 452. The first chamber 451 is located below the water leakage hole 510, and the water suction end of the water inlet pipe 42 is located in the second chamber 452. By providing the partition filter 450 in the water receiving trough 45, the water receiving trough 45 can be divided into two chambers. The first chamber 451 is used to collect water containing impurities flowing in from the water leakage hole 510, while the second chamber 452 is used to store clean water. After the water flows through the first chamber 451, the impurities will be filtered out by the partition filter 450, thereby ensuring that the water entering the second chamber 452 is clean, avoiding clogging or damage to the water pump 43.

[0042] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quartz sand grading and screening device, characterized in that: It includes a frame, a rotary screening drum, a feeding hopper, a spray cleaning mechanism, a first receiving hopper, a vibration mechanism, a second receiving hopper and a spiral feeder; The rotary screening drum is arranged on the top of the frame, and a rotary driving mechanism is provided at the end of the rotary screening drum, and the rotary driving mechanism is used to drive the rotary screening drum to rotate; The rotary screening drum is provided with a first screening area and a second screening area along its length direction. The rotary screening drum located in the first screening area is provided with a first screen hole, and the rotary screening drum located in the second screening area is provided with a second screen hole. The first screen hole is smaller than the second screen hole. The feed hopper is provided at one end of the rotary screening drum close to the first screening area, and is used to supply quartz sand to the rotary screening drum. The spray cleaning mechanism is provided above the first screening area, and is used to flush the quartz sand in the first screening area. The first receiving hopper is tiltedly arranged below the first screening area, and is used to receive the quartz sand falling from the first screening area. The second receiving hopper is tiltedly arranged below the second screening area, and is used to receive the quartz sand falling from the second screening area. The vibration mechanism is provided on the first receiving hopper to drive the first receiving hopper to vibrate. The feeding end of the screw feeder is located below the discharging end of the first receiving hopper. The screw feeder is used to transport quartz sand.

2. The quartz sand grading and screening device according to claim 1, characterized in that: The spray cleaning mechanism includes a spray pipe, a water inlet pipe, a water pump, a water outlet pipe and a water receiving trough; The water receiving trough is arranged below the first receiving hopper, and the first receiving hopper is provided with a plurality of water leakage holes, and the water leakage holes are used to guide the water in the first receiving hopper into the water receiving trough; The water inlet end of the water pump is connected to the water receiving trough through the water inlet pipe, and the water outlet end of the water pump is connected to the spray pipe through the water outlet pipe. The spray pipe is located above the first screening area, and the spray pipe is provided with a plurality of nozzles along the length direction of the rotating screening drum.

3. The quartz sand grading and screening device according to claim 1, characterized in that: The rotary screening drum is tiltedly arranged on the top of the frame, and the height of the rotary screening drum gradually decreases from the first screening area to the second screening area.

4. The quartz sand grading and screening device according to claim 1, characterized in that: The vibration mechanism includes a vibration motor and a spring connecting arm; The vibration motor is arranged on the first material receiving hopper, the bottom end of the spring connecting arm is hinged to the first material receiving hopper, and the top end of the spring connecting arm is connected to the frame.

5. The quartz sand grading and screening device according to claim 3, characterized in that: It also includes a third receiving hopper. The end of the rotary screening cylinder away from the feed hopper is a hollow part. The third receiving hopper is arranged at the side end of the hollow part to receive the quartz sand falling from the tail of the rotary screening cylinder.

6. The quartz sand grading and screening device according to claim 1, characterized in that: The rotary drive mechanism includes a drive motor, a pulley transmission assembly, a rotating shaft and a connecting frame; The rotating shaft is connected to the rotating screening drum through the connecting frame, and the driving motor is connected to the end of the rotating shaft through the pulley transmission assembly to drive the rotating shaft to rotate.

7. The quartz sand grading and screening device according to claim 2, characterized in that: The water receiving trough is provided with a partition filter screen, and the partition filter screen is used to separate the water receiving trough into a first chamber and a second chamber. The first chamber is located below the water leakage hole, and the water suction end of the water inlet pipe is located in the second chamber.

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