Quartz sand screening device for fracturing

Abstract

The utility model provides a quartz sand screening device for fracturing. The quartz sand screening device comprises a material shaking mechanism and a screening mechanism. The material shaking mechanism comprises a feeding part, a rotary drum arranged below the feeding part, a material receiving part arranged below the rotary drum and a driving assembly for driving the rotary drum to rotate. And when the driving assembly drives the feeding part to turn over up and down for feeding, the rotating drum rotates to shake the materials, so that the raw materials fall into the material receiving part. The material shaking mechanism is further provided with a sealing box covering the outer sides of the feeding part, the rotary drum, the material collecting part and the driving assembly, and an air suction device is arranged on the outer side of the sealing box and used for adsorbing and separating dust in the raw materials during material shaking. The screening mechanism comprises a base and a vibration box body arranged on the base, a feeding port and a discharging port are formed in the vibration box body, and the material collecting part is arranged above the feeding port. According to the screening device, the problem that screening discharging deviates to one side due to too much or too little feeding can be effectively avoided, the problem that the screen is damaged is solved while screen sticking is avoided, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing quartz sand for fracturing, and particularly relates to a screening device for quartz sand for fracturing. Background Art

[0002] Quartz sand for fracturing is a kind of high-purity quartz sand, which is finely processed and has strong compressive resistance and roundness. It is widely used in the petroleum industry, mainly as a petroleum proppant in hydraulic fracturing technology. One of the important factors of fracturing quartz sand is the particle size of quartz sand, and the particle size range is from 20 / 40 mesh to 70 / 140 mesh, where 20 / 40 mesh is coarse sand and 70 / 140 mesh is fine sand.

[0003] Therefore, quartz sand needs to be screened multiple times through coarse screening, fine screening and high-precision screening to ensure the quality of quartz sand for fracturing. In the prior art, a double-layer quartz sand vibrating screen is often used for screening. However, during the screening process of quartz sand raw materials, the screen often gets stuck. Granular objects get stuck in the mesh holes, greatly reducing the effective filtering area of the screen.

[0004] The main reason for the screen sticking is that there are tiny powders in the quartz sand raw materials. When the raw material has high moisture, the screening of various sticky wet powdery raw materials often sticks to the stainless steel mesh holes, causing blockage.

[0005] In addition, during the screening process, when the feeding amount is not fixed and varies, it is very easy to cause unstable screening accuracy. Due to the large deviation in the force on the raw materials caused by the amount of raw materials, the problem of the discharge deviating to one side occurs. At this time, it is easy to cause uneven stress on the screen, and even damage the screen, affecting the screening efficiency. Summary of the Utility Model

[0006] In view of this, the utility model aims to provide a screening device for quartz sand for fracturing, which can reduce the blockage of the screening mesh and ensure the screening efficiency.

[0007] To achieve the above object, the technical solution of the utility model is realized as follows:

[0008] A screening device for quartz sand for fracturing includes a material shaking mechanism and a screening mechanism;

[0009] The material shaking mechanism includes a feeding part, a rotating cylinder arranged below the feeding part, a receiving part arranged below the rotating cylinder, and a driving component for driving the rotating cylinder to rotate;

[0010] While the driving component drives the feeding part to turn up and down for feeding, the rotating cylinder rotates to shake the material, so that the raw materials fall into the receiving part;

[0011] The vibrating material mechanism is further provided with a sealing box covering the outside of the feeding part, the rotary drum, the material receiving part and the driving assembly. An air suction device is arranged outside the sealing box, and the air suction device is used to adsorb and separate the dust in the raw material during vibration of the material.

[0012] The screening mechanism includes a base and a vibrating box body arranged on the base. The vibrating box body is provided with a feeding port and a discharging port, and the material receiving part is arranged above the feeding port.

[0013] Further, the vibrating material mechanism further includes a frame, and the feeding part, the rotary drum and the material receiving part are pivotally connected to the frame in sequence from top to bottom.

[0014] The driving assembly includes a first driving part connected to the frame, a rotating shaft arranged at the power output end of the first driving part, and a vibrating material assembly connected to the lower part of the feeding part.

[0015] The vibrating material assembly is used to drive the feeding part to turn up and down. The vibrating material assembly is in transmission connection with the rotating shaft, and the rotating shaft is in transmission connection with the rotary drum.

[0016] Further, a first connecting shaft is arranged near the outlet end of the feeding part, and the first connecting shaft is pivotally connected to the frame.

[0017] The vibrating material assembly is arranged at the tail end of the feeding part. The vibrating material assembly includes a mounting plate connected to the frame, a turntable pivotally connected to the mounting plate, and a swing block eccentrically connected to the turntable.

[0018] The turntable is in belt transmission with the rotating shaft. The swing block intermittently abuts against the feeding part due to the rotation of the turntable. When the feeding part abuts against the swing block, the tail end of the feeding part rises and the outlet end descends, and the feeding part presents an inclined state.

[0019] Further, the rotary drum includes a magnetic attracting layer arranged on the outer layer and a heating layer arranged inside the magnetic attracting layer.

[0020] The heating layer is used to heat the magnetic attracting layer, and the magnetic attracting layer has magnetism when electrified.

[0021] Further, the discharging end of the material receiving part is pivotally connected to the frame, and a support is hinged to the tail end of the material receiving part.

[0022] A second driving part is further arranged on the frame, and the power output end of the second driving part is hinged and connected to the support.

[0023] Further, the screening mechanism further includes an elastic part disposed between the base and the vibrating box body, and a third driving part for driving the vibrating box body to vibrate, and the third driving part is connected to the base.

[0024] Further, a coarse screening part and a fine screening part are arranged up and down in the vibrating box body;

[0025] One end of the coarse screening part abuts and is fixed on the vibrating box body, and there is a flow channel between the other end and the side wall of the vibrating box body;

[0026] Both ends of the fine screening part abut against the side wall of the vibrating box body. One end of the fine screening part is located below the flow channel, and the other end is communicated with the discharge port.

[0027] Further, the coarse screening part includes a coarse screening mesh and a first material receiving box disposed below the coarse screening mesh. After being screened by the coarse screening mesh, the raw material falls into the first material receiving box;

[0028] The outlet of the first material receiving box is communicated with the flow channel.

[0029] Further, a push plate is further disposed between the bottom wall of the first material receiving box and the coarse screening mesh, and a connecting plate penetrating through the first material receiving box is disposed at the lower part of the push plate;

[0030] A fourth driving part is disposed below the coarse screening part, and a driving shaft connected to the power output end of the fourth driving part. The driving shaft is pivotally connected in the vibrating box body;

[0031] A driven shaft is also pivotally connected in the vibrating box body. The driven shaft and the driving shaft are respectively disposed at both ends of the first material receiving box, and are belt-driven between the driving shaft and the driven shaft;

[0032] The connecting plate is fixedly connected to the belt, and the push plate is driven to push the screened raw material along the length direction of the first material receiving box. The width of the push plate is adapted to the width of the first material receiving box.

[0033] Further, the fine screening part includes a fine screening mesh and a second material receiving box arranged up and down, and the second material receiving box is communicated with the discharge port.

[0034] Compared with the prior art, the utility model has the following advantages:

[0035] The quartz sand screening device for fracturing described in the present utility model, by setting a vibrating material structure and a screening mechanism, before entering the screening mechanism, while driving the feeding part to turn up and down for feeding by setting a driving component, the raw materials are shaken out due to the rotation of the rotating cylinder to form a dispersed state. At this time, the dust in the raw materials is adsorbed by the air suction device and separated from the raw materials, avoiding the raw materials from entering the screening mechanism and causing mesh sticking. And through the setting of the material receiving part, the raw materials separated from the dust are collected, and when a certain amount is reached, they are fed to the feeding port of the screening mechanism, which can effectively avoid the problem that the screening discharge deviates to one side caused by too much or too little feeding, reduce the problem of damaging the screen mesh while avoiding mesh sticking, and improve the screening efficiency.

[0036] In addition, by setting a first driving part to drive the rotation of the rotating shaft, so as to drive the vibrating material component to vibrate and the rotating cylinder to rotate simultaneously, it is possible to realize the feeding and vibrating of the raw materials under the condition of using one power source, and the structure is simple and easy to implement.

[0037] In addition, by setting a swing block and a turntable, the turntable is belt-driven with the rotating shaft, thereby driving the turntable and the swing block to drive the rotating cylinder. The swing block is used to intermittently push the end of the feeding part. When the swing block disengages from the feeding part, the feeding part will produce jerks, thus facilitating the dispersion of the raw materials. Description of the Drawings

[0038] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0039] Figure 1 is the front view structural schematic diagram of the quartz sand screening device for fracturing described in the embodiment of the present utility model;

[0040] Figure 2 is the top view structural schematic diagram of the quartz sand screening device for fracturing described in the embodiment of the present utility model;

[0041] Figure 3 is the structural schematic diagram of the vibrating material mechanism not including the sealing box and the ventilation device described in the embodiment of the present utility model;

[0042] Figure 4 is the connection structural schematic diagram of the quartz sand screening device for fracturing described in the embodiment of the present utility model and the drum screen;

[0043] Figure 5 is Figure 1 the partial enlarged schematic diagram of the connecting plate and the belt described in the embodiment of the present utility model at I in

[0044] Description of the Reference Numerals:

[0045] 1. Vibrating material mechanism; 2. Screening mechanism; 3. Air suction device; 4. Drum screen;

[0046] 101. Feeding section; 102. Rotary drum; 103. Material receiving section; 104. Driving assembly; 105. Sealed box; 106. Frame; 107. Support; 108. Second driving section;

[0047] 201. Base; 202. Vibration box body; 203. Inlet; 204. Outlet; 205. Elastic part; 206. Third driving section; 207. Flow channel; 208. Coarse sieve; 209. First receiving box; 210. Pusher plate; 211. Connecting plate; 212. Compression spring; 213. Fourth driving section; 214. Driving shaft; 215. Driven shaft; 216. Belt; 217. Fine sieve; 218. Second receiving box; 219. Driving cylinder; 220. Iron powder receiving plate;

[0048] 1011. First connecting shaft;

[0049] 1021. Iron attracting layer; 1022. Heating layer;

[0050] 1041. First driving section; 1042. Rotating shaft; 1043. Material shaking assembly;

[0051] 10431. Mounting plate; 10432. Turntable; 10433. Swing block. Detailed implementation manners

[0052] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0053] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0054] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connecting piece" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0055] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0056] This embodiment relates to a quartz sand screening device for fracturing. The quartz sand screening device for fracturing includes a material shaking mechanism 1 and a screening mechanism 2. The material shaking mechanism 1 includes a feeding part 101, a rotating drum 102 disposed below the feeding part 101, a material receiving part 103 disposed below the rotating drum 102, and a driving component 104 for driving the rotation of the rotating drum 102. While the driving component 104 drives the feeding part 101 to turn up and down for feeding, the rotating drum 102 rotates to shake the material so that the raw material falls into the material receiving part 103.

[0057] Among them, the material shaking mechanism 1 is further provided with a sealing box 105 covering the outside of the feeding part 101, the rotating drum 102, the material receiving part 103, and the driving component 104. An air suction device 3 is disposed outside the sealing box 105. The air suction device 3 is used to adsorb and separate the dust in the raw material during material shaking. The screening mechanism 2 includes a base 201 and a vibrating box body 202 disposed on the base 201. The vibrating box body 202 is provided with a feeding port 203 and a discharging port 204. The material receiving part 103 is disposed above the feeding port 203.

[0058] For the quartz sand screening device for fracturing in this embodiment, by setting the material shaking structure and the screening mechanism 2, before entering the screening mechanism 2, while the driving component 104 is driven to make the feeding part 101 turn up and down for feeding, the raw material is shaken out to form a dispersed state due to the rotation of the rotating drum 102. At this time, the dust in the raw material is adsorbed and separated from the raw material by the air suction device 3, avoiding the problem of sticking to the screen when the raw material enters the screening mechanism 2. And through the setting of the material receiving part 103, the raw material separated from the dust is collected, and when it reaches a certain amount, it is fed to the feeding port 203 of the screening mechanism 2, which can effectively avoid the problem that the screening and discharging deviate to one side caused by too much or too little feeding, reduce the problem of damaging the screen while avoiding sticking to the screen, and improve the screening efficiency.

[0059] Based on the above overall introduction, an exemplary structure of the quartz sand screening device for fracturing in this embodiment is as Figure 1 and Figure 2 shown. The material shaking mechanism 1 and the screening mechanism 2 can be separable individuals or can be set as an integrated whole connected together, and can be specifically adjusted according to needs. As Figure 4 shown in, the front end of the material shaking mechanism 1 is a drum screen 4. Through the drum screen 4, the materials on the screen surface are turned over and rolled, so that the qualified materials are discharged through the screen mesh on the outer circle of the drum, and the unqualified materials are discharged from the end of the drum.

[0060] The screening process of quartz sand for fracturing is as follows: first, it is dried by a dryer and then screened by a shaking screen. Then, the sediment is separated through sand washing and a separator, and the raw material quartz sand is obtained through screening by a dewatering screen. The raw material quartz sand is purified by a rotary screen 4, and finally, coarse screening and fine screening are carried out to obtain quartz sand with the required particle size.

[0061] As Figure 1 shown, the sealed box 105 is fixedly connected to the following frame 106 to prevent dust leakage caused by material shaking. The suction device 3 includes a suction pipe connected to the sealed box 105, a suction pump body connected to the suction pipe, and a receiving box connected to the air outlet of the suction pump body.

[0062] As a preferred embodiment, as Figures 1 to 3 shown, the material shaking mechanism 1 further includes a frame 106. The feeding part 101, the rotating drum 102, and the receiving part 103 are pivotally connected to the frame 106 in sequence from top to bottom. The driving assembly 104 includes a first driving part 1041 connected to the frame 106, a rotating shaft 1042 provided at the power output end of the first driving part 1041, and a material shaking assembly 1043 connected below the feeding part 101. The material shaking assembly 1043 is used to drive the feeding part 101 to turn up and down. The material shaking assembly 1043 is in transmission connection with the rotating shaft 1042, and the rotating shaft 1042 is in transmission connection with the rotating drum 102.

[0063] In this embodiment, the first driving part 1041 adopts a servo motor without an output shaft. The rotating shaft 1042 is inserted into the power output end of the first driving part 1041, and the first driving part 1041 drives the rotating shaft 1042 to rotate. By setting the first driving part 1041 to drive the rotating shaft 1042 to rotate, the actions of driving the material shaking assembly 1043 to shake the material and the rotating drum 102 to rotate can be achieved simultaneously. In this way, the feeding and shaking of the raw material can be realized by using one power source, and the structure is simple and easy to implement.

[0064] Furthermore, as Figures 1 to 3 shown, a first connecting shaft 1011 is provided near the outlet end of the feeding part 101. The first connecting shaft 1011 is pivotally connected to the frame 106. The material shaking assembly 1043 is arranged at the tail end of the feeding part 101. The material shaking assembly 1043 includes a mounting plate 10431 connected to the frame 106, a turntable 10432 pivotally connected to the mounting plate 10431, and a swing block 10433 eccentrically connected to the turntable 10432. The turntable 10432 is in belt 216 transmission connection with the rotating shaft 1042. The swing block 10433 intermittently abuts against the feeding part 101 due to the rotation of the turntable 10432. When the feeding part 101 abuts against the swing block 10433, the tail end of the feeding part 101 rises and the outlet end descends, and the feeding part 101 presents an inclined state.

[0065] Still as Figures 1 to 3As shown, a first main pulley 216 is sleeved outside the rotating shaft 1042, and a first auxiliary pulley 216 is sleeved outside the turntable 10432. The rotating shaft 1042 is driven to rotate by the first driving part 1041, and then the turntable 10432 is driven to rotate. While the turntable 10432 rotates, the swing block 10433 rotates with the turntable 10432. In this embodiment, the swing block 10433 is eccentrically arranged on the swing block 10433, and the swing block 10433 is fan-shaped. When the turntable 10432 rotates and the swing block 10433 abuts against the feeding part 101, the outlet end of the receiving part 103 inclines downward to facilitate feeding onto the rotating cylinder 102.

[0066] In addition, as Figure 1 and 2 shown, the feeding part 101 adopts a dustpan structure, and compression springs 212 are also arranged at the connections between both ends of the feeding part 101 and the frame 106. When the tail of the feeding part 101 is propped up by the swing block 10433, the compression springs 212 are stretched to store energy. When the swing block 10433 leaves the feeding part 101, the feeding part 101 quickly returns to its original position due to the energy release of the compression springs 212. The feeding part 101 will have up-and-down jerks and swing left and right at the same time, so as to facilitate the dispersion of raw materials.

[0067] Preferably, as Figure 1 and Figure 3 shown, the rotating cylinder 102 includes a magnetic attracting layer 1021 arranged on the outer layer and a heating layer 1022 arranged inside the magnetic attracting layer 1021. The heating layer 1022 is used to heat the magnetic attracting layer 1021, and the magnetic attracting layer 1021 has magnetism when electrified. The heating layer 1022 in this embodiment is an electric heating wire, and in other embodiments, heating methods such as copper coil heating or other heating media can also be used for heating.

[0068] In this embodiment, setting the outer layer of the rotating cylinder 102 as the magnetic attracting layer 1021 can adsorb iron during the raw material shaking process, so as to play a role in separating and filtering quartz sand. Moreover, by heating the raw materials passing through the rotating cylinder 102 with the heating layer 1022, it can further ensure that the quartz sand entering the screening mechanism 2 has a dry property, avoid the occurrence of the problem of sticking to the screen, and effectively ensure the screening effect and efficiency of the screening mechanism 2.

[0069] In addition, the discharge end of the receiving part 103 is pivotally connected to the frame 106, and a support 107 is hinged to the tail end of the receiving part 103. A second driving part 108 is also arranged on the frame 106, and the power output end of the second driving part 108 is hinged to the support 107. As Figures 1 to 3 shown, the receiving part 103 also adopts a dustpan structure, and the second driving part 108 adopts a telescopic cylinder. By driving the second driving part 108, the tail end of the receiving part 103 is lifted upward, so as to facilitate the transportation of raw materials to the feeding port 203 of the screening mechanism 2.

[0070] Of course, a weight detector is also provided in the material receiving area of the material receiving section 103 to enable accurate quantitative conveying of raw materials and avoid poor screening effects caused by uneven conveying of raw materials. In addition, to facilitate the collection of iron powder adsorbed on the outer side of the rotating drum 102, as Figure 3 shown, a driving cylinder 219 is further provided on the support, and an iron powder receiving plate 220 connected to the driving cylinder 219. When the iron powder on the rotating drum 102 needs to be collected, the iron powder receiving plate 220 is driven under the rotating drum 102, the rotating drum 102 is powered off and rotated to collect the iron powder on the rotating drum 102.

[0071] As a preferred implementation mode, as Figure 1 and Figure 2 shown, the screening mechanism 2 further includes an elastic part 205 provided between the base 201 and the vibration box body 202, and a third driving part 206 for driving the vibration of the vibration box body 202. The third driving part 206 is connected to the base 201. The third driving part 206 uses a vibration motor, and the vibration box body 202 is driven to vibrate by the third driving part 206 to screen the quartz sand raw materials.

[0072] Furthermore, as Figure 1 and Figure 2 shown, a coarse screening part and a fine screening part are arranged up and down in the vibration box body 202. One end of the coarse screening part abuts and is fixed on the vibration box body 202, and there is a circulation channel 207 between the other end and the side wall of the vibration box body 202. Both ends of the fine screening part abut against the side wall of the vibration box body 202. One end of the fine screening part is located below the circulation channel 207, and the other end is communicated with the discharge port 204. The vibration box body 202 is formed into a rectangular structure, and a rectangular cavity is formed inside it. The coarse screening part and the fine screening part are fixedly arranged in the cavity of the vibration box body 202.

[0073] Still as Figure 1 and Figure 2 shown, the coarse screening part includes a coarse screen 208 and a first material receiving box 209 provided below the coarse screen 208. After the raw materials are screened by the coarse screen 208, they fall into the first material receiving box 209, and the outlet of the first material receiving box 209 is communicated with the circulation channel 207. The width direction of the first material receiving box 209 abuts against the side wall of the vibration box body 202.

[0074] Still as Figure 1 and Figure 2As shown, a push plate 210 is further provided between the bottom wall of the first material receiving box 209 and the coarse sieve 208. A connecting plate 211 penetrating through the first material receiving box 209 is provided at the lower part of the push plate 210. A fourth driving part 213 is provided below the coarse sieve part. A driving shaft 214 connected to the power output end of the fourth driving part 213 is pivotally connected in the vibration box body 202. A driven shaft 215 is also pivotally connected in the vibration box body 202. The driven shaft 215 and the driving shaft 214 are respectively arranged at both ends of the first material receiving box 209. A belt 216 is used for transmission between the driving shaft 214 and the driven shaft 215. As Figure 5 shown, the connecting plate 211 is formed into an inverted T-shaped plate. The upper end can be fixed to the push plate 210 through an L-shaped angle iron, and the lower part is fixedly connected to the belt 216 through bolts.

[0075] Still as Figure 1 and Figure 2 shown, the connecting plate 211 is fixedly connected to the belt 216. The push plate 210 is driven to push the screened raw materials along the length direction of the first material receiving box 209. The width of the push plate 210 is adapted to the width of the first material receiving box 209. In this embodiment, the fourth driving part 213 adopts a servo motor. By driving the driving shaft 214 to rotate through the fourth driving part 213, the belt 216 is driven to circularly move, and the push plate 210 moves along the length direction of the first material receiving box 209 as the belt 216 moves. The push plate 210 can push the raw materials to the flow channel 207 and fall into the fine sieve part. The arrangement of the push plate 210 can also play a role in cleaning and abutting the coarse sieve 208, further avoiding the blockage caused by large particles getting stuck in the sieve.

[0076] In addition, as Figure 1 shown, the fine sieve part includes a fine sieve 217 and a second material receiving box 218 arranged up and down. The second material receiving box 218 is communicated with the discharge port 204. The coarse sieve 208 and the fine sieve 217 in this embodiment can be set as required. Since the vibrating mechanism 1 is arranged in front of the screening mechanism 2, the screening efficiency and screening effect of the quartz sand for fracturing can be ensured without using a special sieve.

[0077] The above are only the preferred embodiments of the present invention, and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quartz sand screening device for fracturing, characterized in that: It includes a vibrating material mechanism (1) and a screening mechanism (2); The vibrating material mechanism (1) includes a feeding part (101), a rotating cylinder (102) arranged below the feeding part (101), a material receiving part (103) arranged below the rotating cylinder (102), and a driving component (104) for driving the rotating cylinder (102) to rotate; While the driving component (104) drives the feeding part (101) to turn up and down for feeding, the rotating cylinder (102) rotates to vibrate the material so that the raw material falls into the material receiving part (103); The vibrating material mechanism (1) is also provided with a sealing box (105) covering the outer sides of the feeding part (101), the rotating cylinder (102), the material receiving part (103) and the driving component (104). An air suction device (3) is arranged outside the sealing box (105), and the air suction device (3) is used to adsorb and separate the dust in the raw material during vibrating; The screening mechanism (2) includes a base (201) and a vibrating box body (202) arranged on the base (201). The vibrating box body (202) is provided with a feeding port (203) and a discharging port (204), and the material receiving part (103) is arranged above the feeding port (203).

2. The quartz sand screening device for fracturing according to claim 1, characterized in that: The vibrating material mechanism (1) further includes a frame (106), and the feeding part (101), the rotating cylinder (102) and the material receiving part (103) are pivotally connected to the frame (106) in sequence from top to bottom; The driving component (104) includes a first driving part (1041) connected to the frame (106), a rotating shaft (1042) arranged at the power output end of the first driving part (1041), and a vibrating material component (1043) connected below the feeding part (101); The vibrating material component (1043) is used to drive the feeding part (101) to turn up and down. The vibrating material component (1043) is in transmission connection with the rotating shaft (1042), and the rotating shaft (1042) is in transmission connection with the rotating cylinder (102).

3. The quartz sand screening device for fracturing according to claim 2, characterized in that: A first connecting shaft (1011) is arranged near the outlet end of the feeding part (101), and the first connecting shaft (1011) is pivotally connected to the frame (106); The vibrating material component (1043) is arranged at the tail end of the feeding part (101). The vibrating material component (1043) includes a mounting plate (10431) connected to the frame (106), a turntable (10432) pivotally connected to the mounting plate (10431), and a swing block (10433) eccentrically connected to the turntable (10432); The turntable (10432) is driven by a belt (216) connected to the rotating shaft (1042). The swing block (10433) intermittently abuts against the feeding part (101) due to the rotation of the turntable (10432). When the feeding part (101) abuts against the swing block (10433), the tail end of the feeding part (101) rises and the outlet end descends, causing the feeding part (101) to be in an inclined state.

4. The quartz sand screening device for fracturing according to claim 3, wherein: The rotating drum (102) includes a magnetic attracting layer (1021) provided on the outer layer and a heating layer (1022) provided inside the magnetic attracting layer (1021); The heating layer (1022) is used to heat the magnetic attracting layer (1021), and the magnetic attracting layer (1021) has magnetism when electrified.

5. The quartz sand screening device for fracturing according to claim 3, wherein: The discharging end of the material receiving part (103) is pivotally connected to the frame (106), and a support (107) is hinged to the tail end of the material receiving part (103); A second driving part (108) is further provided on the frame (106), and the power output end of the second driving part (108) is hinged to the support (107).

6. The quartz sand screening device for fracturing according to claim 1, wherein: The screening mechanism (2) further includes an elastic part (205) provided between the base (201) and the vibrating box body (202), and a third driving part (206) for driving the vibrating box body (202) to vibrate. The third driving part (206) is connected to the base (201).

7. The quartz sand screening device for fracturing according to claim 1, wherein: A coarse screening part and a fine screening part are arranged up and down in the vibrating box body (202); One end of the coarse screening part abuts and is fixed on the vibrating box body (202), and there is a circulation channel (207) between the other end and the side wall of the vibrating box body (202); Both ends of the fine screening part abut against the side wall of the vibrating box body (202). One end of the fine screening part is located below the circulation channel (207), and the other end is communicated with the discharging port (204).

8. The quartz sand screening device for fracturing according to claim 7, wherein: The coarse screening part includes a coarse screen mesh (208) and a first material receiving box (209) provided below the coarse screen mesh (208). After being screened by the coarse screen mesh (208), the raw material falls into the first material receiving box (209); The outlet of the first material receiving box (209) is communicated with the circulation channel (207).

9. The quartz sand screening device for fracturing according to claim 8, wherein: A push plate (210) is further provided between the bottom wall of the first material receiving box (209) and the coarse screen mesh (208), and a connecting plate (211) penetrating through the first material receiving box (209) is provided at the lower part of the push plate (210); A fourth driving part (213) is provided below the coarse screening part. A driving shaft (214) is connected to the power output end of the fourth driving part (213), and the driving shaft (214) is pivotally connected in the vibration box body (202). A driven shaft (215) is also pivotally connected in the vibration box body (202). The driven shaft (215) and the driving shaft (214) are respectively arranged at two ends of the first material receiving box (209), and are driven by a belt (216) between the driving shaft (214) and the driven shaft (215). The connecting plate (211) is fixedly connected to the belt (216). The pushing plate (210) is driven to push the screened raw material along the length direction of the first material receiving box (209), and the width of the pushing plate (210) is adapted to the width of the first material receiving box (209).

10. The quartz sand screening device for fracturing according to claim 7, wherein: The fine screening part comprises a fine screen mesh (217) and a second material receiving box (218) which are arranged up and down, and the second material receiving box (218) is communicated with the discharge port (204).

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