Equipment and method for preparing high-purity cristobalite sand

Abstract

The invention provides equipment and a method for preparing high-purity cristobalite sand, and relates to the technical field of preparation of the high-purity cristobalite sand. The equipment comprises a connecting cylinder, a fixing ring is arranged on the inner wall of the connecting cylinder, and a supporting cylinder is fixedly connected to the inner wall of the connecting cylinder; after being crushed, quartz stone directly falls into a screen arranged in the supporting frame through the bottom of a connecting cylinder, meshes of the screen are gradually reduced downwards, so that the crushed quartz stone can be screened, a connecting plate is extruded, and the screen swings on the inner wall of the supporting frame; and a connecting plate is extruded by a screen in the direction away from the supporting frame through a first spring, so that the screen can return to the original position, the screen can shake back and forth on the inner wall of the supporting frame, the crushed quartzite can well pass through the screen, and then the quartzite can be quickly screened.

Description

Technical Field

[0001] The invention relates to the technical field of preparing high-purity quartz sand, and in particular to a device and a method for preparing high-purity quartz sand. Background Art

[0002] The equipment for preparing high-purity quartz sand is a device used to crush quartz ore. When preparing high-purity quartz sand, the selected high-purity quartz ore is cleaned and divided into 2-10 cm blocks, and then the mineralizer is added into the blocks, wherein the mineralizer is one or a mixture of lithium salt, sodium salt, potassium salt, and calcium salt. The mineralizer and quartz ore are mixed in a certain proportion, and the addition proportion of the mineralizer is 0.001%-5%. The mixture is kept warm in a kiln at 1000-1600℃ for 2-10 hours, so that the α-quartz can be fully transformed into cristobalite. Then the cristobalite is placed inside the connecting tube, and the rotating ring is driven by the first motor to rotate inside the fixed ring. In this way, the cristobalite can be broken by the rotating ring and the fixed ring. The broken quartz needs to be sieved to obtain 20-200 cristobalite sand or 200 mesh or finer cristobalite powder. Then the obtained cristobalite sand / powder is subjected to flotation, acid washing, and magnetic separation to obtain cristobalite sand / powder with higher purity. Then the cristobalite sand / powder is purified by high-temperature chlorination to obtain high-purity cristobalite sand / powder.

[0003] The inventors found in their daily work that there are still at least the following problems in the preparation of high-purity quartz sand: when preparing high-purity quartz sand, the selected high-purity quartz ore is cleaned and divided into blocks of 2-10 cm, and then a mineralizer is added to the blocks, wherein the mineralizer is one or a mixture of lithium salt, sodium salt, potassium salt, and calcium salt. The mineralizer and quartz ore are mixed in a certain proportion, and the addition proportion of the mineralizer is 0.001%-5%. The mixture is kept warm in a kiln at 1000-1600℃ for 2-10 hours, so that the α-quartz can be fully converted into cristobalite. Then the cristobalite is placed inside the connecting tube, and the rotating ring is driven by the first motor to rotate inside the fixed ring. In this way, the cristobalite can be broken by the rotating ring and the fixed ring. The broken quartz needs to be sieved to obtain 20-200 cristobalite sand or 200 mesh or finer cristobalite powder. Then the obtained cristobalite sand / powder is subjected to flotation, acid washing, and magnetic separation to obtain cristobalite sand / powder with higher purity. Then the cristobalite sand / powder is purified by high-temperature chlorination to obtain high-purity cristobalite sand / powder. However, in actual use, the broken quartz needs to be taken out of the crushing device and then graded and screened, which is more troublesome and affects the efficiency of preparing high-purity cristobalite sand to a certain extent. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a device and method for preparing high-purity quartz sand.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device and method for preparing high-purity quartz sand, including a connecting cylinder, the inner wall of the connecting cylinder is provided with a fixing ring, the inner wall of the connecting cylinder is fixedly connected to a supporting cylinder, the inner wall of the supporting cylinder is provided with a rotating ring, the inner wall of the fixing ring is fixedly connected to a limiting cylinder, the rotating ring is arranged inside the limiting cylinder, the surface of the rotating ring is fixedly connected to a first bevel gear, one side of the connecting cylinder is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a second bevel gear, the first bevel gear and the second bevel gear are meshed with each other, the bottom of the connecting cylinder is provided with a screening device, the bottom of the connecting cylinder is provided with a fixing device, and the screening device It includes a support frame, which is arranged at the bottom of the connecting cylinder, and the inner wall of the support frame is evenly provided with a screen, and the side of the screen is evenly fixedly connected to a limiting rod, and the limiting rod slides through and is inserted into one side of the support frame, and the inner wall of the screen is provided with a conical surface, and the end of the limiting rod away from the support frame is fixedly connected with a connecting plate, and the side of the connecting plate close to the limiting rod is evenly fixedly connected with a first damping rod, one end of the first damping rod away from the connecting plate is fixedly connected to the surface of the support frame, and the surface of the first damping rod is sleeved with a first spring, one end of the first spring is fixedly connected to one side of the support frame, and one end of the first spring close to the first damping rod is fixedly connected to the side of the connecting plate close to the first damping rod.

[0006] The effect achieved by the above-mentioned components is: when using the screening device, after the quartz stone is crushed, it directly falls through the bottom of the connecting tube to the inside of the screen arranged inside the support frame. Because the mesh of the screen gradually becomes smaller downward, the crushed quartz stone can be screened and the connecting plate can be squeezed, so that the screen can swing on the inner wall of the support frame. When the connecting plate is no longer squeezed, the screen is squeezed away from the support frame by the first spring, so that the screen can return to its original position, so that the screen can swing back and forth on the inner wall of the support frame, so that the crushed quartz stone can pass through the screen well, which is convenient for quickly screening the quartz stone, thereby improving the efficiency of preparing high-purity quartz sand to a certain extent.

[0007] Preferably, a connecting pipe is fixedly connected to the bottom of the screen, circular grooves are evenly opened on one side of the support frame, and the connecting pipe is arranged inside the circular grooves.

[0008] The effect achieved by the above components is that when too much quartz is screened out from the inside of the screen, the quartz is transported out of the top of the screen through the connecting pipe, thereby achieving continuous operation of the screening device to a certain extent.

[0009] Preferably, a limiting groove is provided on the inner wall of the screen, a baffle is slidably connected to the inner wall of the limiting groove, a second damping rod is fixedly connected to one side of the inner wall of the limiting groove, an end of the second damping rod close to the limiting groove is fixedly connected to one side of the baffle, a second spring is sleeved on the surface of the second damping rod, one end of the second spring is fixedly connected to one side of the inner wall of the limiting groove, an end of the second spring close to the second damping rod is fixedly connected to one side of the baffle, a sliding groove is provided at the bottom of the inner wall of the limiting groove, a sliding block is slidably connected to the inner wall of the sliding groove, the top of the sliding block is fixedly connected to the bottom of the baffle, a connecting rope is fixedly connected to one side of the sliding block close to the sliding groove, the connecting rope slides through and is inserted on one side of the support frame, and the connecting rope is fixedly connected to a positioning block at one end away from the sliding block.

[0010] The effect achieved by the above components is: manually controlling the positioning block to pull the connecting rope in the direction away from the supporting frame, so that the sliding block can be well controlled to slide on the inner wall of the slide groove, thereby compressing the second spring, which can well keep the baffle away from the bottom of the discharge port set at the bottom of the screen, so that the quartz stone screened out of the inner wall of the screen is conveniently transported out of the top of the screen through the connecting pipe.

[0011] Preferably, a support plate is fixedly connected to one side of the support frame, a second motor is fixedly connected to the top of the support plate, a rotating rod is fixedly connected to the output end of the second motor, a cam is evenly fixedly connected to the surface of the rotating rod, and the cam and the connecting plate are on the same horizontal plane.

[0012] The effect achieved by the above components is: the rotating rod is driven to rotate by the second motor, which can well drive the cam fixed on the surface of the rotating rod to rotate. Because the cam and the connecting plate are on the same horizontal plane, it is easy to control the cam to squeeze the connecting plate away from the side of the limit rod at a certain frequency.

[0013] Preferably, the fixing device comprises a sliding rod, a support ring is fixedly connected to the surface of the connecting tube, the sliding rod slides through and is inserted into the top of the support ring, and the bottom of the support ring is fixedly connected to the top of the support frame.

[0014] The effect achieved by the above components is: when using the fixing device, manually slide the connecting tube to the top of the support frame, and then slide the sliding rod through and insert it into the bottom of the support ring, so that the support frame can be well set at the bottom of the connecting tube.

[0015] Preferably, the surface of the top of the sliding rod is evenly provided with receiving grooves, the inner wall of the receiving groove is slidably connected to a sliding bar, one side of the inner wall of the receiving groove is fixedly connected to a third damping rod, one end of the third damping rod away from the receiving groove is fixedly connected to an end of the sliding bar close to the receiving groove, a third spring is sleeved on the surface of the third damping rod, one end of the third spring is fixedly connected to one side of the inner wall of the receiving groove, one end of the third spring close to the third damping rod is fixedly connected to an end of the sliding bar close to the inner wall of the receiving groove, and the top of the sliding bar is provided with an inclined surface.

[0016] The effect achieved by the above-mentioned components is: when the sliding rod passes through the support ring, the inner wall of the support ring squeezes the inclined surface opened on the top of the sliding bar, so that the sliding bar can be squeezed into the inside of the storage groove; when the top of the sliding rod passes through the support ring, the third spring squeezes the sliding bar in the direction away from the storage groove, so that the sliding bar is arranged outside the storage groove, and then the sliding bar can be well restricted to the inside of the support ring.

[0017] Preferably, a rubber ring is fixedly connected to the bottom of the support ring, an annular groove is formed on the inner wall of the rubber ring, and a side of the rubber ring away from the support ring is arranged on the top of the support frame.

[0018] The effect achieved by the above components is that when the quartz stone is crushed, the connecting tube may vibrate, thereby squeezing the rubber ring to the top of the support frame. The ring groove can increase the deformation of the rubber ring, which can play a certain buffering role.

[0019] Preferably, a locking groove is provided at the top of the support frame, and a round block is slidably connected to the inner wall of the locking groove, and a fourth damping rod is fixedly connected to the top of the round block, and one end of the fourth damping rod away from the round block is fixedly connected to the bottom of the support ring, and a fourth spring is sleeved on the surface of the fourth damping rod, and one end of the fourth spring is fixedly connected to the bottom of the support ring, and one end of the fourth spring close to the fourth damping rod is fixedly connected to the top of the round block.

[0020] The effect achieved by the above components is: when the round block is slid into the inside of the positioning groove, when the connecting tube vibrates due to the crushing of the quartz stone, the fourth spring is compressed, which can play a certain buffering role.

[0021] In the present invention, a screening device is provided. When the screening device is used, after the quartz stone is crushed, it directly falls through the bottom of the connecting tube to the inside of the screen arranged inside the support frame. Because the mesh of the screen gradually becomes smaller downward, the crushed quartz stone can be screened and the connecting plate can be squeezed, so that the screen can swing on the inner wall of the support frame. When the connecting plate is no longer squeezed, the screen is squeezed by the first spring in the direction away from the support frame, so that the screen can return to its original position, so that the screen can swing back and forth on the inner wall of the support frame, so that the crushed quartz stone can pass through the screen well, thereby facilitating the rapid screening of the quartz stone, thereby improving the efficiency of preparing high-purity quartz sand to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a device and method for preparing high-purity quartz sand;

[0023] Figure 2 The present invention provides a three-dimensional structural schematic diagram of a novel limiting cylinder;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of a novel screen proposed in the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 The present invention provides a three-dimensional structural schematic diagram of a novel connecting rope;

[0027] Figure 6 A three-dimensional structural schematic diagram of a novel cam proposed in the present invention;

[0028] Figure 7 A schematic diagram of the three-dimensional structure of a novel support ring proposed in the present invention;

[0029] Figure 8 A three-dimensional structural schematic diagram of a novel sliding rod proposed by the present invention;

[0030] Fig. 9 for Figure 8 Enlarged view of point B in the middle.

[0031] Legend: 1. Connecting cylinder; 2. Fixed ring; 3. Limiting cylinder; 4. Rotating ring; 5. First bevel gear; 6. Supporting cylinder; 7. First motor; 8. Screening device; 801. Support frame; 802. Screen; 803. Limiting rod; 804. Conical surface; 805. Connecting pipe; 806. Limiting groove; 807. Baffle; 808. Second damping rod; 809. Second spring; 810. Slide groove; 811. Sliding block; 812. Connecting rope; 813. Connecting plate; 814. First damping rod; 815. The first spring; 816, the positioning block; 817, the support plate; 818, the second motor; 819, the rotating rod; 820, the cam; 821, the circular groove; 9, the fixing device; 901, the supporting ring; 902, the sliding rod; 903, the rubber ring; 904, the ring groove; 905, the fourth damping rod; 906, the fourth spring; 907, the round block; 908, the positioning groove; 909, the storage groove; 910, the sliding bar; 911, the inclined plane; 912, the third damping rod; 913, the third spring; 10, the second bevel gear. DETAILED DESCRIPTION

[0032] Embodiment 1, as Figure 1-9 As shown, a device and method for preparing high-purity quartz sand, the inner wall of the connecting tube 1 is provided with a fixing ring 2, the inner wall of the connecting tube 1 is fixedly connected with a supporting tube 6, the inner wall of the supporting tube 6 is provided with a rotating ring 4, the inner wall of the fixing ring 2 is fixedly connected with a limiting tube 3, the rotating ring 4 is arranged inside the limiting tube 3, the surface of the rotating ring 4 is fixedly connected with a first bevel gear 5, one side of the connecting tube 1 is fixedly connected with a first motor 7, the output end of the first motor 7 is fixedly connected with a second bevel gear 10, the first bevel gear 5 and the second bevel gear 10 are meshed with each other, the bottom of the connecting tube 1 is provided with a screening device 8, and the bottom of the connecting tube 1 is provided with a fixing device 9. When preparing high-purity quartz sand, the selected high-purity quartz ore is cleaned and divided into blocks of 2-10 cm, and then a mineralizer is added into the blocks, wherein the mineralizer is one or a mixture of several of lithium salt, sodium salt, potassium salt and calcium salt. The mineralizer and quartz ore are mixed in a certain proportion, and the addition proportion of the mineralizer is 0.001%-5%. The mixture is kept warm in a kiln at 1000-1600°C for 2-10 hours, so that the α-quartz can be fully converted into cristobalite. Then the cristobalite is placed inside the connecting tube 1, and the rotating ring 4 is driven by the first motor 7 to rotate inside the fixed ring 2. In this way, the cristobalite can be broken by the rotating ring 4 and the fixed ring 2. The broken quartz needs to be sieved to obtain 20-200 cristobalite sand or 200 mesh or finer cristobalite powder. Then the obtained cristobalite sand / powder is subjected to flotation, pickling, and magnetic separation to obtain cristobalite sand / powder with higher purity. Then the cristobalite sand / powder is purified by high-temperature chlorination to obtain high-purity cristobalite sand / powder.

[0033] Reference Figures 3 to 6The screening device 8 includes a support frame 801, which is arranged at the bottom of the connecting cylinder 1. The inner wall of the support frame 801 is evenly provided with a screen 802. The side of the screen 802 is evenly fixedly connected with a limit rod 803. The limit rod 803 slides through and is inserted on one side of the support frame 801. The inner wall of the screen 802 is provided with a conical surface 804. The end of the limit rod 803 away from the support frame 801 is fixedly connected with a connecting plate 813. The side of the connecting plate 813 close to the limit rod 803 is evenly fixedly connected with a first damping rod 814. The end of the first damping rod 814 away from the connecting plate 813 is fixedly connected to the surface of the support frame 801. The surface of the first damping rod 814 is sleeved with a first spring 815. One end of the first spring 815 is fixedly connected to the support frame 80 1 is fixedly connected to one side of the support frame 801, one end of the first spring 815 close to the first damping rod 814 is fixedly connected to the side of the connecting plate 813 close to the first damping rod 814. When the screening device 8 is used, after the quartz stone is crushed, it directly falls through the bottom of the connecting cylinder 1 to the inside of the screen 802 arranged inside the support frame 801. Because the mesh of the screen 802 gradually becomes smaller downward, the crushed quartz stone can be screened, squeezing the connecting plate 813, thereby making the screen 802 swing on the inner wall of the support frame 801. When the connecting plate 813 is no longer squeezed, the screen 802 is squeezed by the first spring 815 in the direction away from the support frame 801, so that the screen 802 can return to its original position, which can make The screen 802 swings back and forth on the inner wall of the support frame 801, so that the crushed quartz stone can pass through the screen 802 well, which is convenient for quickly screening the quartz stone, thereby improving the efficiency of preparing high-purity quartz sand to a certain extent. The bottom of the screen 802 is fixedly connected with a connecting pipe 805, and one side of the support frame 801 is evenly provided with circular grooves 821. The connecting pipe 805 is arranged inside the circular groove 821. When too much quartz stone is screened out of the screen 802, the quartz stone is transported out of the top of the screen 802 through the connecting pipe 805, thereby realizing the continuous operation of the screening device 8 to a certain extent. The inner wall of the screen 802 is provided with a limiting groove 806, and the inner wall of the limiting groove 806 is slidably connected with a baffle 807. A second damping rod 808 is fixedly connected to one side of the inner wall of the limiting groove 806, and one end of the second damping rod 808 close to the limiting groove 806 is fixedly connected to one side of the baffle 807. A second spring 809 is sleeved on the surface of the second damping rod 808, and one end of the second spring 809 is fixedly connected to one side of the inner wall of the limiting groove 806. One end of the second spring 809 close to the second damping rod 808 is fixedly connected to one side of the baffle 807. A sliding groove 810 is provided at the bottom of the inner wall of the limiting groove 806, and a sliding block 811 is slidably connected to the inner wall of the sliding groove 810. The top of the sliding block 811 is fixedly connected to the bottom of the baffle 807, and a connecting rope 812 is fixedly connected to one side of the sliding block 811 close to the sliding groove 810. The connecting rope 812 slides through and is inserted into one side of the support frame 801.The end of the connecting rope 812 away from the sliding block 811 is fixedly connected to the blocking block 816. The blocking block 816 is manually controlled to pull the connecting rope 812 in the direction away from the support frame 801, so that the sliding block 811 can be well controlled to slide on the inner wall of the slide groove 810, thereby compressing the second spring 809, so that the baffle plate 807 can be well kept away from the bottom of the discharge port set at the bottom of the screen 802, so that the quartz stone screened out of the inner wall of the screen 802 is conveniently transported out of the top of the screen 802 through the connecting pipe 805. A support plate 817 is fixedly connected to one side of the support frame 801. The top of the support plate 817 is fixedly connected with a second motor 818, and the output end of the second motor 818 is fixedly connected with a rotating rod 819. The surface of the rotating rod 819 is evenly fixedly connected with a cam 820. The cam 820 and the connecting plate 813 are on the same horizontal plane. The rotating rod 819 is driven to rotate by the second motor 818, which can well drive the cam 820 fixed on the surface of the rotating rod 819 to rotate. Because the cam 820 and the connecting plate 813 are on the same horizontal plane, it is easy to control the cam 820 to squeeze the connecting plate 813 away from the side of the limit rod 803 according to a certain frequency.

[0034] Reference Figures 7 to 9The fixing device 9 includes a sliding rod 902, and a support ring 901 is fixedly connected to the surface of the connecting tube 1. The sliding rod 902 slides through and is inserted into the top of the support ring 901. The bottom of the support ring 901 is fixedly connected to the top of the support frame 801. When using the fixing device 9, the connecting tube 1 is manually slid to the top of the support frame 801, and then the sliding rod 902 is slid through and inserted into the bottom of the support ring 901. In this way, the support frame 801 can be well set at the bottom of the connecting tube 1. The surface of the top of the sliding rod 902 is evenly provided with storage grooves 909, and the inner wall of the storage groove 909 is slidably connected with a sliding bar 910. One side of the inner wall of the storage groove 909 is fixedly connected with a third damping rod 912, and the third damping rod 912 is away from One end of the storage groove 909 is fixedly connected to one end of the sliding bar 910 close to the storage groove 909, and a third spring 913 is sleeved on the surface of the third damping rod 912. One end of the third spring 913 is fixedly connected to one side of the inner wall of the storage groove 909, and one end of the third spring 913 close to the third damping rod 912 is fixedly connected to one end of the sliding bar 910 close to the inner wall of the storage groove 909. A slope 911 is provided on the top of the sliding bar 910. When the sliding rod 902 passes through the support ring 901, the inner wall of the support ring 901 squeezes the slope 911 on the top of the sliding bar 910. In this way, the sliding bar 910 can be squeezed into the interior of the storage groove 909. When the top of the sliding rod 902 passes through the support ring 901, the third The spring 913 presses the sliding bar 910 in the direction away from the storage groove 909, so that the sliding bar 910 is arranged outside the storage groove 909, and then the sliding rod 902 can be well restricted inside the support ring 901 through the sliding bar 910. The bottom of the support ring 901 is fixedly connected with a rubber ring 903, and the inner wall of the rubber ring 903 is provided with a ring groove 904. The side of the rubber ring 903 away from the support ring 901 is arranged on the top of the support frame 801. When the quartz stone is crushed, it may cause the connecting tube 1 to vibrate, and then the rubber ring 903 is squeezed to the top of the support frame 801. The ring groove 904 can make the deformation degree of the rubber ring 903 larger, which can play a certain buffering role. A locking groove 908 is provided on the top of the support frame 801, and a round block 907 is slidably connected to the inner wall of the locking groove 908, and a fourth damping rod 905 is fixedly connected to the top of the round block 907. The end of the fourth damping rod 905 away from the round block 907 is fixedly connected to the bottom of the support ring 901, and a fourth spring 906 is sleeved on the surface of the fourth damping rod 905, and one end of the fourth spring 906 is fixedly connected to the bottom of the support ring 901, and the end of the fourth spring 906 close to the fourth damping rod 905 is fixedly connected to the top of the round block 907. The round block 907 is slid into the inside of the locking groove 908. When the connecting tube 1 vibrates due to the crushing of the quartz stone, the fourth spring 906 is compressed, which can play a certain buffering role.

[0035] Working principle: When preparing high-purity quartz sand, clean the selected high-purity quartz ore and divide it into 2-10 cm blocks, and then add the mineralizer into the blocks, wherein the mineralizer is one or a mixture of lithium salt, sodium salt, potassium salt, and calcium salt. The mineralizer and quartz ore are mixed in a certain proportion, and the addition ratio of the mineralizer is 0.001%-5%. The mixture is kept warm in a kiln at 1000-1600℃ for 2-10 hours, so that the α-quartz can be fully transformed into cristobalite. Then the cristobalite is placed inside the connecting tube 1, and the rotating ring 4 is driven by the first motor 7 to rotate inside the fixed ring 2, so that the cristobalite can be broken by the rotating ring 4 and the fixed ring 2. The broken quartz needs to be sieved to obtain 20-200 cristobalite sand or 200 mesh fine cristobalite powder, and then the obtained cristobalite sand / powder is subjected to flotation, pickling, and magnetic separation to obtain cristobalite sand / powder with higher purity, and then The quartz sand / powder is purified by high-temperature chlorination to obtain high-purity quartz sand / powder. When the screening device 8 is used, after the quartz stone is crushed, it directly falls through the bottom of the connecting tube 1 to the inside of the screen 802 arranged inside the support frame 801. Because the mesh of the screen 802 gradually becomes smaller downward, the crushed quartz stone can be screened. The rotating rod 819 is driven to rotate by the second motor 818, which can well drive the cam 820 fixed on the surface of the rotating rod 819 to rotate. Because the cam 820 and the connecting plate 813 are on the same horizontal plane, it is easy to control the cam 820 to squeeze the connecting plate 813 away from the side of the limit rod 803 at a certain frequency, squeezing When the connecting plate 813 is pressed, the screen 802 swings on the inner wall of the support frame 801. When the connecting plate 813 is no longer pressed, the screen 802 is pressed by the first spring 815 in the direction away from the support frame 801, so that the screen 802 returns to its original position, so that the screen 802 swings back and forth on the inner wall of the support frame 801, so that the crushed quartz stone can pass through the screen 802 well, thereby facilitating the rapid screening of the quartz stone, thereby improving the efficiency of preparing high-purity quartz sand to a certain extent, and manually controlling the positioning block 816 to pull the connecting rope 812 in the direction away from the support frame 801, so that the sliding can be well controlled. The movable block 811 slides on the inner wall of the slide groove 810, thereby compressing the second spring 809, which can effectively keep the baffle 807 away from the bottom of the discharge port set at the bottom of the screen 802, so that the quartz stone screened out by the inner wall of the screen 802 is transported out of the top of the screen 802 through the connecting pipe 805, thereby realizing the continuous operation of the screening device 8 to a certain extent. When using the fixing device 9, manually slide the connecting tube 1 to the top of the support frame 801, and then slide the sliding rod 902 through the bottom of the support ring 901. When the sliding rod 902 passes through the support ring 901, the inner wall of the support ring 901 squeezes the inclined surface 911 opened on the top of the sliding bar 910.In this way, the sliding bar 910 can be squeezed into the inside of the storage groove 909. When the top of the sliding rod 902 passes through the support ring 901, the third spring 913 squeezes the sliding bar 910 in the direction away from the storage groove 909, so that the sliding bar 910 is set outside the storage groove 909, and then the sliding bar 910 can well limit the sliding rod 902 inside the support ring 901, so that the support frame 801 can be well set at the bottom of the connecting tube 1. When the quartz stone is crushed, it may cause the connecting tube 1 to vibrate, and then the rubber ring 903 is squeezed to the top of the support frame 801. The ring groove 904 can make the deformation degree of the rubber ring 903 larger, and slide the round block 907 into the inside of the positioning groove 908. When the connecting tube 1 vibrates due to the crushing of the quartz stone, the fourth spring 906 is compressed, which can play a certain buffering role.

[0036] It should be noted that all damping rods in this case are retractable dampers that can absorb energy during the retraction process.

Claims

1. A device for preparing high-purity quartz sand, comprising a connecting tube (1), characterized in that: The inner wall of the connecting cylinder (1) is provided with a fixing ring (2), the inner wall of the connecting cylinder (1) is fixedly connected to a supporting cylinder (6), the inner wall of the supporting cylinder (6) is provided with a rotating ring (4), the inner wall of the fixing ring (2) is fixedly connected to a limiting cylinder (3), the rotating ring (4) is arranged inside the limiting cylinder (3), the surface of the rotating ring (4) is fixedly connected to a first bevel gear (5), one side of the connecting cylinder (1) is fixedly connected to a first motor (7), the output end of the first motor (7) is fixedly connected to a second bevel gear (10), the first bevel gear (5) and the second bevel gear (10) are meshed with each other, the bottom of the connecting cylinder (1) is provided with a screening device (8), the bottom of the connecting cylinder (1) is provided with a fixing device (9), the screening device (8) comprises a supporting frame (801), the supporting frame (801) is arranged at the bottom of the connecting cylinder (1), and the inner wall of the supporting frame (801) is evenly provided with a screen ( 802), the side of the screen (802) is evenly fixedly connected to a limit rod (803), the limit rod (803) is slidably inserted into one side of the support frame (801), the inner wall of the screen (802) is provided with a conical surface (804), the end of the limit rod (803) away from the support frame (801) is fixedly connected to a connecting plate (813), and the side of the connecting plate (813) close to the limit rod (803) is evenly fixedly connected to a first damping rod (813). 14), one end of the first damping rod (814) away from the connecting plate (813) is fixedly connected to the surface of the support frame (801), a first spring (815) is sleeved on the surface of the first damping rod (814), one end of the first spring (815) is fixedly connected to one side of the support frame (801), and one end of the first spring (815) close to the first damping rod (814) is fixedly connected to one side of the connecting plate (813) close to the first damping rod (814).

2. The device for preparing high-purity quartz sand according to claim 1, characterized in that: A connecting pipe (805) is fixedly connected to the bottom of the screen (802), circular grooves (821) are evenly formed on one side of the support frame (801), and the connecting pipe (805) is arranged inside the circular groove (821).

3. The device for preparing high-purity quartz sand according to claim 1, characterized in that: The inner wall of the screen (802) is provided with a limiting groove (806), the inner wall of the limiting groove (806) is slidably connected to a baffle (807), one side of the inner wall of the limiting groove (806) is fixedly connected to a second damping rod (808), one end of the second damping rod (808) close to the limiting groove (806) is fixedly connected to one side of the baffle (807), a second spring (809) is sleeved on the surface of the second damping rod (808), one end of the second spring (809) is fixedly connected to one side of the inner wall of the limiting groove (806), and the second spring (809) close to the second damping rod (80 8) is fixedly connected to one side of the baffle (807), a sliding groove (810) is provided at the bottom of the inner wall of the limiting groove (806), a sliding block (811) is slidably connected to the inner wall of the sliding groove (810), the top of the sliding block (811) is fixedly connected to the bottom of the baffle (807), a connecting rope (812) is fixedly connected to one side of the sliding groove (810), the connecting rope (812) is slidably penetrated and inserted into one side of the support frame (801), and a locking block (816) is fixedly connected to one end of the connecting rope (812) away from the sliding block (811).

4. The device for preparing high-purity quartz sand according to claim 1, characterized in that: A support plate (817) is fixedly connected to one side of the support frame (801), a second motor (818) is fixedly connected to the top of the support plate (817), a rotating rod (819) is fixedly connected to the output end of the second motor (818), a cam (820) is evenly fixedly connected to the surface of the rotating rod (819), and the cam (820) and the connecting plate (813) are located on the same horizontal plane.

5. The device for preparing high-purity quartz sand according to claim 1, characterized in that: The fixing device (9) comprises a sliding rod (902), a support ring (901) is fixedly connected to the surface of the connecting tube (1), the sliding rod (902) slides through and is inserted into the top of the support ring (901), and the bottom of the support ring (901) is fixedly connected to the top of the support frame (801).

6. The device for preparing high-purity quartz sand according to claim 5, characterized in that: The surface of the top of the sliding rod (902) is evenly provided with a receiving groove (909), the inner wall of the receiving groove (909) is slidably connected to a sliding bar (910), one side of the inner wall of the receiving groove (909) is fixedly connected to a third damping rod (912), one end of the third damping rod (912) away from the receiving groove (909) is fixedly connected to one end of the sliding bar (910) close to the receiving groove (909), a third spring (913) is sleeved on the surface of the third damping rod (912), one end of the third spring (913) is fixedly connected to one side of the inner wall of the receiving groove (909), one end of the third spring (913) close to the third damping rod (912) is fixedly connected to one end of the sliding bar (910) close to the inner wall of the receiving groove (909), and an inclined surface (911) is provided on the top of the sliding bar (910).

7. The device for preparing high-purity quartz sand according to claim 5, characterized in that: The bottom of the support ring (901) is fixedly connected to a rubber ring (903), an inner wall of the rubber ring (903) is provided with a ring groove (904), and a side of the rubber ring (903) away from the support ring (901) is arranged on the top of the support frame (801).

8. The device for preparing high-purity quartz sand according to claim 1, characterized in that: A locking groove (908) is provided at the top of the support frame (801); a round block (907) is slidably connected to the inner wall of the locking groove (908); a fourth damping rod (905) is fixedly connected to the top of the round block (907); an end of the fourth damping rod (905) away from the round block (907) is fixedly connected to the bottom of the support ring (901); and a fourth spring (906) is sleeved on the surface of the fourth damping rod (905).

9. The device for preparing high-purity quartz sand according to claim 8, characterized in that: One end of the fourth spring (906) is fixedly connected to the bottom of the support ring (901), and one end of the fourth spring (906) close to the fourth damping rod (905) is fixedly connected to the top of the round block (907).

10. A device and method for preparing high-purity quartz sand, characterized in that: A device for preparing high-purity quartz sand is used according to any one of claims 1 to 9.

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