A high-strength, corrosion-resistant horizontal nano-sand mill

Abstract

The present invention discloses a high-strength and corrosion-resistant horizontal nano sand mill, comprising a machine base and a grinding cylinder, wherein the grinding cylinder is fixedly mounted on the upper end surface of the machine base, a grinding chamber is provided inside the grinding cylinder, a grinding cylinder rear end cover is provided at the left end of the grinding cylinder, a grinding cylinder front end cover is provided at the right end of the grinding cylinder, a main shaft is connected to the grinding cylinder for transverse rotation, the left end of the main shaft passes through the grinding cylinder front end cover and is provided with a driving mechanism, and a material separator is provided at the right end of the main shaft. In the present invention, a scraper is close to the inner wall of the grinding cylinder and is in contact and sliding connection with the inner wall of the grinding cylinder, so that the material and the grinding medium adhering to the inner wall of the grinding cylinder are scraped off, so that the material and the grinding medium are prevented from adhering to the inner wall of the grinding cylinder, so that the material is fully ground, and the material adhering to the inner wall of the grinding cylinder can be discharged in time, so that the material is fully utilized.

Description

Technical Field

[0001] The invention relates to the technical field of sand mills, in particular to a high-strength, corrosion-resistant horizontal nano sand mill. Background Art

[0002] At present, the sand mills used in the coating, ink, pigment, dye and other industries are mostly disc type and pin type. The basic principle is: the media used for grinding, such as zirconium beads, glass beads, etc., are installed in a closed cylinder. The media in the cylinder are moved by the turntable or pin installed on the rotating shaft, so that the media produce relative movement, allowing the materials to be ground to pass through the media to achieve the crushing effect. The higher the relative speed of the grinding media, the greater the collision force and the better the grinding fineness.

[0003] Patent No. CN104741175B discloses a ceramic corrosion-resistant horizontal turbine nano sand mill, which is mainly composed of a frame, a motor, a spindle, a grinding unit and an electrical control system; wherein the grinding unit is composed of a grinding cylinder, a silicon carbide grinding inner cylinder, a spindle, a feed plate and a discharge port; and the spindle is a hollow structure made of stainless steel, and there are several ceramic turbine dispersion discs, ceramic dispersion disc isolation rings, and ceramic grating separation rings on the spindle; a ceramic corrosion-resistant horizontal turbine nano sand mill of the present invention, whose turbine structure can effectively increase the relative motion speed and collision force of the grinding medium, so that the material can obtain a lower nano-level fineness; the turbine nano sand mill prepared by the present invention is also wear-resistant, corrosion-resistant, high in grinding efficiency, long in service life, and easy to clean and replace; it is widely used in the grinding of various nano materials, such as nano color paste, printing ink, etc.

[0004] However, during the use of the above-mentioned existing horizontal nano sand mill, a large amount of grinding media and grinding materials will adhere to the inner wall of the grinding cylinder, which will not only cause the material to be unable to be fully ground, but also cause the material to adhere to the inner wall of the grinding cylinder and cannot be discharged in time, resulting in the material not being fully utilized and causing waste.

[0005] In order to solve the above problems, the present invention provides a high-strength and corrosion-resistant horizontal nano-sand mill. Summary of the invention

[0006] Based on the technical problems existing in the background technology, the present invention proposes a high-strength and corrosion-resistant horizontal nano-sand mill.

[0007] The invention provides a high-strength, corrosion-resistant horizontal nanometer sand mill, comprising a machine base and a grinding cylinder, wherein the grinding cylinder is fixedly mounted on the upper end surface of the machine base, a grinding chamber is provided in the grinding cylinder, a grinding cylinder rear end cover is provided at the left end of the grinding cylinder, a grinding cylinder front end cover is provided at the right end of the grinding cylinder, a main shaft is connected to the grinding cylinder for transverse rotation, the left end of the main shaft passes through the grinding cylinder front end cover and is provided with a driving mechanism, a material separator is provided at the right end of the main shaft, a plurality of sliding cavities are provided in annular rows at equal intervals on the side wall of the main shaft, a liquid storage tank is provided on the inner wall of each sliding cavity, a low-boiling-point evaporative liquid is filled in the liquid storage tank, a piston is slidably connected in the sliding cavity, the piston is attached to the opening of the liquid storage tank, a grinding block is fixedly mounted on the side of the piston away from the liquid storage tank, the other end of the grinding block passes through the side wall of the main shaft and extends to the outside, a plurality of grinding blocks located on the same horizontal axis are fixedly connected to a scraper at one end away from the piston, and there is a gap between the scraper and the inner wall of the grinding cylinder.

[0008] Preferably, a sealed cavity is provided at the center of the grinding block, the lower end of the sealed cavity passes through the lower end surface of the piston and is communicated with the liquid storage tank, a sliding plug is slidably connected in the sealed cavity, a spring is fixedly installed on the side wall of the sliding plug, the other end of the spring is fixedly installed on the inner wall of the sealed cavity, two sliding grooves are symmetrically provided on the side wall of the sealed cavity, a grinding pestle is slidably connected in each of the sliding grooves, and one end of each of the grinding pestles facing away from the sealed cavity passes through the side wall of the grinding block and extends into the sliding cavity and abuts against the inner wall of the sliding cavity.

[0009] Preferably, the driving mechanism includes a vertical plate and a servo motor, the servo motor is fixedly mounted on the side wall of the vertical plate, a driving wheel is fixedly mounted on the output end of the servo motor, a driven wheel is arranged on the left end of the main shaft, and the driving wheel and the driven wheel are connected by a transmission belt.

[0010] Preferably, the left end of the main shaft passes through the side wall of the grinding cylinder and the rear end cover of the grinding cylinder and is rotatably connected inside the side wall of the grinding cylinder and the rear end cover of the grinding cylinder.

[0011] Preferably, a discharge pipe corresponding to the material separator is arranged on the right side wall of the front end cover of the grinding cylinder, and a feed pipe is arranged on the upper end surface of the grinding cylinder.

[0012] Preferably, a cooling cavity is provided in the side wall of the grinding cylinder, a cooling water inlet pipe interconnected with the cooling cavity is provided on the upper end surface of the grinding cylinder, and a cooling water outlet pipe is provided on the lower end surface of the grinding cylinder.

[0013] Beneficial effects of the present invention:

[0014] 1. The scraper is close to the inner wall of the grinding cylinder and is in contact and sliding connection with the inner wall of the grinding cylinder to scrape off the materials and grinding media adhering to the inner wall of the grinding cylinder, thus avoiding the materials and grinding media adhering to the inner wall of the grinding cylinder, so that the materials can be fully ground and the materials adhering to the inner wall of the grinding cylinder can be discharged in time, so that the materials can be fully utilized;

[0015] 2. Under the action of air pressure, the sliding plug will gradually compress the spring and the air in the sealed chamber, increasing the pressure in the sealed chamber and pushing the grinding pestles on both sides to move in opposite directions, so that the grinding pestles are completely extended out of the grinding block, further increasing the grinding area of ​​the grinding block, increasing the grinding intensity, and making the material more fully ground;

[0016] 3. After the heat absorption in the liquid storage tank is vaporized, it will take away part of the heat in the grinding cylinder, reducing the possibility of material flocculation or sintering. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a high-strength, corrosion-resistant horizontal nano-sand mill proposed by the present invention;

[0018] Figure 2 This is a front cross-sectional view of a grinding cylinder in a high-strength, corrosion-resistant horizontal nano-sand mill proposed by the present invention;

[0019] Figure 3 This is an enlarged cross-sectional view of a grinding block in a high-strength, corrosion-resistant horizontal nano-sand mill proposed by the present invention.

[0020] In the figure: 1 grinding block, 2 liquid storage tank, 3 piston, 4 sliding plug, 5 main shaft, 6 sealing chamber, 7 grinding pestle, 8 spring, 9 sliding chamber, 10 scraper, 11 feeding pipe, 12 grinding cylinder, 13 cooling water outlet pipe, 14 cooling water inlet pipe, 15 servo motor, 16 vertical plate, 17 machine base, 18 discharging pipe, 19 front end cover of grinding cylinder, 20 low boiling point evaporating liquid. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0023] refer to Figure 1-3 A high-strength, corrosion-resistant horizontal nano sand mill comprises a machine base 17 and a grinding cylinder 12, wherein the grinding cylinder 12 is fixedly mounted on the upper end surface of the machine base 17, a grinding chamber is provided in the grinding cylinder 12, a grinding cylinder rear end cover is provided at the left end of the grinding cylinder 12, a grinding cylinder front end cover 19 is provided at the right end of the grinding cylinder 12, a main shaft 5 is connected to the grinding cylinder 12 for horizontal rotation, the left end of the main shaft 5 passes through the grinding cylinder front end cover and is provided with a driving mechanism, a material separator is provided at the right end of the main shaft 5, a plurality of sliding chambers 9 are provided in a ring array at equal intervals on the side wall of the main shaft 5, each of which is provided with a plurality of sliding chambers 9. A liquid storage tank 2 is provided on the inner wall of the sliding cavity 9, and the liquid storage tank 2 is filled with a low-boiling point evaporative liquid 20. A piston 3 is slidably connected in the sliding cavity 9, and the piston 3 is in contact with the opening of the liquid storage tank 2. A grinding block 1 is fixedly installed on the side of the piston 3 away from the liquid storage tank 2, and the other end of the grinding block 1 passes through the side wall of the main shaft 5 and extends to the outside. A plurality of grinding blocks 1 located on the same horizontal axis are fixedly connected to a scraper 10 at one end away from the piston 3, and there is a gap between the scraper 10 and the inner wall of the grinding cylinder 12.

[0024] Among them, a sealed chamber 6 is provided at the center of the grinding block 1, the lower end of the sealed chamber 6 passes through the lower end surface of the piston 3 and communicates with the liquid storage tank 2, a sliding plug 4 is slidably connected in the sealed chamber 6, a spring 8 is fixedly installed on the side wall of the sliding plug 4, and the other end of the spring 8 is fixedly installed on the inner wall of the sealed chamber 6, and two sliding grooves are symmetrically provided on the side wall of the sealed chamber 6, and a grinding pestle 7 is slidably connected in each sliding groove, and one end of each grinding pestle 7 away from the sealed chamber 6 passes through the side wall of the grinding block 1 and extends into the sliding chamber 9 and abuts against the inner wall of the sliding chamber 9. When the grinding block 1 extends out of the main shaft 5 and no longer moves, the sliding plug 4 is pushed by the air pressure to compress the air in the sealed chamber 6 in the spring 8, so that the grinding pestle 7 slides out of the grinding block 1, thereby increasing the grinding area of ​​the grinding block 1 and making the material grind more fully;

[0025] The driving mechanism includes a vertical plate 16 and a servo motor 15. The servo motor 15 is fixedly mounted on the side wall of the vertical plate 16. A driving wheel is fixedly mounted on the output end of the servo motor 15. A driven wheel is arranged on the left end of the main shaft 5. The driving wheel and the driven wheel are connected by a transmission belt. The servo motor 15 drives the driving wheel to rotate through the output end. The driving wheel drives the driven wheel to rotate through the transmission belt, thereby driving the main shaft 5 to rotate and grind the material.

[0026] The left end of the main shaft 5 penetrates the side wall of the grinding cylinder 12 and the rear end cover of the grinding cylinder and is rotatably connected to the side wall of the grinding cylinder 12 and the rear end cover of the grinding cylinder;

[0027] Among them, a discharge pipe 18 corresponding to the material separator is arranged on the right side wall of the front end cover 19 of the grinding cylinder to facilitate the discharge of the ground material;

[0028] In the present invention, after the material and the grinding medium are put into the grinding cylinder 12 through the feed pipe 11, the driving mechanism drives the main shaft 5 to rotate, and the main shaft 5 drives the grinding block 1 to rotate to mix and grind the material in the grinding cylinder 12. As the speed of the main shaft 5 becomes faster and faster until it reaches a certain speed and then rotates at a high speed, a large amount of heat will be generated during the grinding process, causing the temperature of the main shaft 5 to gradually increase. At this time, the low-boiling point evaporating liquid 20 in the liquid storage tank 2 is vaporized after being heated, and the gas pressure in the liquid storage tank 2 gradually increases. Under the action of the pressure difference, the piston 3 pushes the grinding block 1 to gradually move in the direction away from the liquid storage tank 2, so that the grinding block 1 The main shaft 5 is fully extended to push the scraper 10 close to the inner wall of the grinding cylinder 12, and the scraper 10 is close to the inner wall of the grinding cylinder 12 and is in contact and sliding connection with the inner wall of the grinding cylinder 12, so that the material and the grinding medium adhering to the inner wall of the grinding cylinder 12 are scraped off, and the material and the grinding medium are prevented from adhering to the inner wall of the grinding cylinder 12, so that the material is fully ground, and the material adhering to the inner wall of the grinding cylinder can be discharged in time, so that the material is fully utilized;

[0029] Furthermore, when the grinding block 1 moves in a direction away from the liquid storage tank 2 under the action of pressure, the length of the grinding block 1 extending out of the main shaft 5 is increased, thereby increasing the grinding strength of the grinding block 1. Moreover, when the grinding block 1 extends out of the main shaft 5, the piston 3 abuts against the inner wall of the sliding cavity 9 and cannot move. At this time, the sliding plug 4, under the action of air pressure, gradually compresses the air in the spring 8 and the sealing cavity 6, thereby increasing the pressure in the sealing cavity 6 and pushing the grinding pestles 7 on both sides to move in opposite directions, so that the grinding pestles 7 are completely extended out of the grinding block 1, further increasing the grinding area of ​​the grinding block 1, increasing the grinding strength, and allowing the material to be more fully ground.

[0030] It is worth noting that the low boiling point evaporating liquid 20 in the liquid storage tank 2 absorbs heat and vaporizes, and takes away part of the heat in the grinding cylinder 12, thereby reducing the possibility of material flocculation or sintering.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength, corrosion-resistant horizontal nanometer sand mill, comprising a machine base (17) and a grinding cylinder (12), characterized in that: The grinding cylinder (12) is fixedly mounted on the upper end surface of the machine base (17); a grinding chamber is provided in the grinding cylinder (12); a grinding cylinder rear end cover is provided at the left end of the grinding cylinder (12); a grinding cylinder front end cover (19) is provided at the right end of the grinding cylinder (12); a main shaft (5) is connected to the grinding cylinder (12) for transverse rotation; the left end of the main shaft (5) passes through the grinding cylinder front end cover and is provided with a driving mechanism; a material separator is provided at the right end of the main shaft (5); a plurality of sliding cavities (9) are provided in an equidistant ring on the side wall of the main shaft (5); a liquid storage tank (2) is provided on the inner wall of each sliding cavity (9); and the liquid storage tank (2) is filled with low-boiling-point evaporating Liquid (20), a piston (3) is slidably connected in the sliding cavity (9), the piston (3) is in contact with the opening of the liquid storage tank (2), a grinding block (1) is fixedly installed on the side of the piston (3) away from the liquid storage tank (2), the other end of the grinding block (1) penetrates the side wall of the main shaft (5) and extends to the outside, a plurality of grinding blocks (1) located on the same horizontal axis are fixedly connected to a scraper (10) at one end away from the piston (3), a gap exists between the scraper (10) and the inner wall of the grinding cylinder (12), a sealing cavity (6) is opened at the center of the grinding block (1), the lower end of the sealing cavity (6) penetrates the lower end surface of the piston (3) and communicates with the liquid storage tank (2), the sealing cavity (6) A sliding plug (4) is slidably connected to the inside of the sliding plug (4), a spring (8) is fixedly installed on the side wall of the sliding plug (4), the other end of the spring (8) is fixedly installed on the inner wall of the sealed cavity (6), two sliding grooves are symmetrically provided on the side wall of the sealed cavity (6), a grinding pestle (7) is slidably connected in each of the sliding grooves, and one end of each of the grinding pestles (7) away from the sealed cavity (6) penetrates the side wall of the grinding block (1) and extends into the sliding cavity (9) and abuts against the inner wall of the sliding cavity (9), the driving mechanism comprises a vertical plate (16) and a servo motor (15), the servo motor (15) is fixedly installed on the side wall of the vertical plate (16), a driving wheel is fixedly installed on the output end of the servo motor (15), and the main A driven wheel is arranged at the left end of the shaft (5), and the driving wheel and the driven wheel are connected via a transmission belt. The left end of the main shaft (5) penetrates the side wall of the grinding cylinder (12) and the rear end cover of the grinding cylinder and is rotatably connected inside the side wall of the grinding cylinder (12) and the rear end cover of the grinding cylinder. A discharge pipe (18) corresponding to the material separator is arranged on the right side wall of the front end cover (19) of the grinding cylinder. A feed pipe (11) is arranged on the upper end surface of the grinding cylinder (12). A cooling cavity is arranged in the side wall of the grinding cylinder (12). A cooling water inlet pipe (14) which is interconnected with the cooling cavity is arranged on the upper end surface of the grinding cylinder (12), and a cooling water outlet pipe (13) is arranged on the lower end surface of the grinding cylinder (12).

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