Nano calcium carbonate modification device for degradable plastic

Abstract

The invention discloses a nano calcium carbonate modification device for degradable plastics, and relates to the technical field of nano calcium carbonate, the nano calcium carbonate modification device for degradable plastics comprises a base, the top of the base is fixedly provided with a fixing frame, and the bottom of the fixing frame is fixedly provided with a modification cylinder; according to the nano calcium carbonate modification device for the degradable plastic, a centrifugal barrel for stacking nano calcium carbonate raw materials rotates, so that the raw materials in the calcium carbonate raw materials are screened out through filtering holes under the action of centrifugal force; impurities in the centrifugal barrel are accumulated in the centrifugal barrel, so that the consistency and uniformity of the raw materials in the subsequent process are improved, and the particle size distribution of nano calcium carbonate is more concentrated, so that when the nano calcium carbonate is mixed with other raw materials, the particle size of each raw material can be relatively uniform, and the mixing uniformity is favorably improved.

Description

Technical Field

[0001] The invention relates to the technical field of nano calcium carbonate, in particular to a nano calcium carbonate modification device used in degradable plastics. Background Art

[0002] Nano calcium carbonate is an important inorganic chemical product that plays a vital role in feed, cosmetics, toothpaste, biomedicine and other fields.

[0003] Patent announcement number CN217248868U relates to a nano-calcium carbonate modification device for degradable plastics, including a tank body, a reaction space provided in the tank body, hanging ears fixedly provided symmetrically on the left and right sides of the tank body, a tank cover slidingly provided on the tank body, a feeding port and a vent fixedly provided on the left and right sides of the tank cover respectively, a motor frame fixedly provided on the tank cover, a power motor fixedly provided on the motor frame, a motor shaft provided in the power motor, a spiral space provided in the tank body, and by rotating the upper suction fan, the stirring block rotates, thereby rotating the lower ejection fan and the stirring disk, so that the upper layer of slurry is sucked into the above-mentioned exchange space and ejected from the lower side of the exchange space, thereby increasing the frequency of exchange of reactants between the upper and lower layers, thereby making the emulsifier evenly distributed, thereby greatly improving the reaction efficiency.

[0004] In the above patent, the frequency of exchange of reactants between the upper and lower layers is increased, so that the emulsifier is evenly distributed, thereby greatly improving the reaction efficiency. However, before the raw materials are mixed, the subsequent modification effect may be affected by impurities or foreign matter contained in the raw materials, and agglomeration or sticking may occur during the transportation process. For this reason, a nano-calcium carbonate modification device for biodegradable plastics with pre-centrifugal screening and break-up functions is designed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a nano-calcium carbonate modification device for degradable plastics, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a nano-calcium carbonate modification device for degradable plastics, comprising a base, a fixing frame fixedly mounted on the top of the base, a modification cylinder fixedly mounted on the bottom of the fixing frame, a raw material cylinder fixedly mounted on the surface of the fixing frame, a collecting cylinder fixedly mounted on the top of the base, a feed pipe fixedly penetrated through the circumferential surface of the raw material cylinder, a discharge pipe fixedly penetrated through the circumferential surface of the base, a heating ring fixedly mounted on the surface of the fixing frame, a motor fixedly mounted on the top of the fixing frame, and a pre-treatment device for pre-screening and breaking up the raw materials is provided on the top of the raw material cylinder The pretreatment device includes a pretreatment cylinder, which is fixedly installed on the top of the raw material cylinder, and a motor 2 is fixedly installed on the top of the pretreatment cylinder. A centrifugal cylinder is rotatably installed on the inner wall of the pretreatment cylinder, and a rotating shaft 1 is rotatably penetrated through the surface of the raw material cylinder, and a scattering plate is fixedly installed on the circumferential surface of the rotating shaft 1. A sieve plate 1 is fixedly installed on the inner wall of the raw material cylinder, and a paddle plate 1 is fixedly installed on the circumferential surface of the rotating shaft 1, which improves the consistency and uniformity of the raw materials in the subsequent process and makes the particle size distribution of nano calcium carbonate more concentrated. In this way, when mixed with other raw materials, the particle size of each raw material can be guaranteed to be relatively uniform, which is conducive to improving the uniformity of mixing.

[0007] According to the above technical solution, a sieve plate 2 is fixedly installed on the inner wall of the modification cylinder, the feed pipe is fixedly passed through the modification cylinder, the discharge pipe is fixedly passed through the collection cylinder, a transmission belt 1 is connected between the output end of the motor 1 and the rotating shaft 1, a hollow hole is provided on the surface of the paddle 1, and there are two raw material cylinders, which are used to stack the nano-calcium carbonate raw materials and the modified raw materials, further break them up to improve their uniformity, and avoid sticking and agglomeration during transportation, thereby affecting the subsequent work process. At the same time, the calcium carbonate raw materials are prone to form agglomerates, and the breaking operation can break these agglomerates into smaller particles.

[0008] According to the above technical solution, filter holes are provided on the circumferential surface of the centrifugal cylinder, the centrifugal cylinder is fixedly connected to the output end of the second motor, and the first paddle is slidably connected to the bottom of the inner wall of the raw material cylinder, thereby increasing the specific surface area of the particles so that they can be more evenly dispersed in the biodegradable plastic matrix, avoiding local enrichment or uneven dispersion, thereby improving subsequent product performance.

[0009] According to the above technical solution, the surface of the fixed frame is provided with a stirring device for stirring the mixed raw materials to improve the uniformity, the stirring device includes a screw rod, the screw rod rotates and penetrates the surface of the fixed frame, the inner wall of the fixed frame is fixedly installed with a cover plate, the bottom of the cover plate is rotatably installed with a toothed disk, the circumferential surface of the screw rod is fixedly installed with a gear 1, the bottom of the cover plate is sleeved with a stirring rod, the circumferential surface of the stirring rod is fixedly installed with a gear 2, the circumferential surface of the stirring rod is fixedly installed with an extension rod, and the circumferential surface of the toothed disk is fixedly installed An L-shaped block is installed, a limit plate is fixedly installed on the inner wall of the feed pipe, a sliding plate is slidably penetrated through the inner wall of the feed pipe, a telescopic elastic rod is fixedly installed on the inner wall of the feed pipe, and a contact block is fixedly installed on the surface of the sliding plate, which reduces the particle size and viscosity of the mixed raw materials, chops up larger raw material agglomerates or lumps, reduces the particle size, and increases the specific surface area of the raw materials. The rotation of the spiral rod fully mixes the bottom raw materials with the upper raw materials, allowing the nano calcium carbonate to be more evenly dispersed in other raw materials, improving the modification effect, and making the product performance better.

[0010] According to the above technical solution, gear one is engaged with gear two, gear two is engaged with the toothed disc, the screw rod rotates and passes through the screen plate two, the end surface of the L-shaped block away from the toothed disc is set to arc surface one, the shape of the contact block is set to L-shaped, and the end surface of the contact block away from the sliding plate is set to arc surface two, so as to avoid inconsistent or uneven size distribution of raw materials at the bottom and top, and overheating in local areas due to long-term stirring or friction, which may cause changes or degradation in raw material properties.

[0011] According to the above technical solution, a blade is provided on the circumferential surface of the extension rod, a leakage hole 1 is provided on the surface of the limiting plate, and a leakage hole 2 is provided on the surface of the sliding plate. The leakage hole 1 coincides with the leakage hole 2, and the free end of the telescopic elastic rod 1 is fixedly connected to the sliding plate. By turning and stirring, the raw material performance can be effectively protected and the stable product quality can be guaranteed.

[0012] The cleaning roller is fixedly mounted on the inner wall of the cleaning ring, and a roller is fixedly mounted on the circumferential surface of the cleaning roller away from the circumferential surface of the screw rod, and a bevel block is fixedly mounted on the circumferential surface of the fixing plate, and a sleeve is sleeved on the circumferential surface of the fixing plate, and a knocking rod is fixedly mounted on the surface of the sleeve, and a paddle plate 2 is fixedly mounted on the circumferential surface of the screw rod, so as to further improve the cleaning effect of the sieve plate 2 and avoid clogging the surface of the sieve plate 2 during the process of the raw material passing through the surface of the sieve plate 2, thereby affecting the filtering effect of the sieve plate 2. Removing these attachments can keep the sieve holes unobstructed, ensuring that the raw material can pass through the sieve plate 2 smoothly and maintain a stable screening efficiency.

[0013] According to the above technical solution, the circumferential surface of the cleaning cylinder is provided with bristles, the surface of the bevel block is set to arc surface three, a spring is provided between the sleeve plate and the fixed disk, the angle of the dial plate two is set to an inclined angle, and the roller is in contact with the screen plate two, thereby realizing self-cleaning of the screen plate two, reducing the difficulty and workload of manual cleaning and maintenance, and thus reducing the downtime of the equipment, thereby improving the operating efficiency of the equipment, avoiding excessive accumulation of materials on the screen plate two, reducing the contact time and friction between the screen plate and the material, thereby extending the service life of the screen plate two, and improving the operating stability of the overall equipment.

[0014] The present invention provides a device for modifying nano-calcium carbonate in degradable plastics. The device has the following beneficial effects:

[0015] (1) The nano calcium carbonate modification device for biodegradable plastics rotates the centrifugal drum on which the nano calcium carbonate raw materials are stacked to screen out the raw materials inside the calcium carbonate raw materials through the filter holes by centrifugal force, and the impurities inside the calcium carbonate raw materials are accumulated inside the centrifugal drum, thereby improving the consistency and uniformity of the raw materials in the subsequent process and making the particle size distribution of the nano calcium carbonate more concentrated. In this way, when mixed with other raw materials, the particle size of each raw material can be ensured to be relatively uniform, which is conducive to improving the uniformity of mixing. The rotation of the transmission belt drives the rotation of the rotating shaft, and the rotation of the rotating shaft drives the rotation of the scattering plate. The rotation of the scattering plate further scatters the raw materials to improve their uniformity and avoid sticking and agglomeration during the transportation process, thereby affecting the subsequent work process. At the same time, the calcium carbonate raw materials are prone to form agglomerates. The scattering operation can break these agglomerates into smaller particles, increase the specific surface area of the particles, and make them more evenly dispersed in the biodegradable plastic matrix, avoiding local enrichment or uneven dispersion, thereby improving the performance of subsequent products.

[0016] (2) The nano calcium carbonate modification device for biodegradable plastics rotates the blade by rotating the extension rod. At this time, the rotation of the blade will cut the raw materials accumulated inside the modification cylinder, reduce the particle size and viscosity of the mixed raw materials, chop up larger raw material agglomerates or lumps, reduce the particle size, and increase the specific surface area of the raw materials. The rotation of the spiral rod makes the bottom raw materials and the upper raw materials fully mixed, so that the nano calcium carbonate is more evenly dispersed in other raw materials, improves the modification effect, and makes the product performance better. At the same time, the rotation of the spiral rod will turn the raw materials at the bottom up for stirring and cutting again, avoiding inconsistent or uneven size distribution of the raw materials at the bottom and the top, and overheating in local areas due to long-term stirring or friction. Overheating may cause the performance of the raw materials to change or degrade. The stirring can effectively protect the performance of the raw materials and ensure stable product quality.

[0017] (3) The device for modifying nano-calcium carbonate in degradable plastics realizes quantitative discharge of materials at the feed pipe by means of a deformation recovery of the telescopic elastic rod when the contact block loses its effect on it, pushing the sliding plate downward to re-limit the feed pipe, thereby avoiding uneven mixing or insufficient mixing and fusion of a batch of materials during the subsequent stirring and heating fusion process. It can ensure that the ratio of the two raw materials input each time is accurate, making the product performance stable and consistent, avoiding uneven product quality due to fluctuations in the ratio of raw materials, and avoiding the burden of subsequent processing due to excess raw materials, such as uneven stirring, too long processing time, etc., and the feed pipe is limited when the equipment stops to avoid leakage of raw materials.

[0018] (4) The nano calcium carbonate modification device for degradable plastics drives the roller to rotate by rotating the cleaning cylinder. Since the roller is in contact with the sieve plate 2, the roller rotates under the action of the sieve plate 2. At the same time, the rotation of the roller drives the cleaning cylinder to rotate, and the rotation of the cleaning cylinder drives the brush to rotate. The rotation of the brush cleans the surface of the sieve plate 2, further improving the cleaning effect of the sieve plate 2, avoiding the surface of the sieve plate 2 being blocked by the raw material in the process of passing through the surface of the sieve plate 2, thereby affecting the filtering effect of the sieve plate 2. Removing these attachments can keep the sieve holes unobstructed, ensuring that the raw material can pass through the sieve plate 2 smoothly, and maintaining a stable screening efficiency.

[0019] (5) The nano-calcium carbonate modification device for biodegradable plastics drives the knocking rod to move by moving the sleeve plate. The knocking rod moves upward and approaches and contacts the surface of the sieve plate 2 to generate vibration. At this time, the sieve plate 2 vibrates under the action of the knocking rod, realizing the self-cleaning of the sieve plate 2, reducing the difficulty and workload of manual cleaning and maintenance, thereby reducing the downtime of the equipment, thereby improving the operating efficiency of the equipment, avoiding excessive accumulation of materials on the sieve plate 2, reducing the contact time and friction between the sieve plate and the material, thereby extending the service life of the sieve plate 2 and improving the operating stability of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the position structure of the motor 2 and the centrifugal cylinder of the present invention; Figure 4 This is a schematic diagram of the position structure of gear 1 and gear 2 of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle part; Figure 6 This is a schematic diagram of the position structure of the cleaning ring and the roller of the present invention; Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure part B in the middle.

[0021] In the figure: 1. Base; 2. Fixed frame; 3. Modification cylinder; 41. Raw material cylinder; 42. Collecting cylinder; 43. Feed pipe; 44. Discharge pipe; 45. Heating ring; 46. Motor 1; 51. Pretreatment cylinder; 52. Motor 2; 53. Centrifugal cylinder; 54. Rotating shaft 1; 55. Breaking plate; 56. Screen plate 1; 57. Paddle plate 1; 58. Screen plate 2; 61. Screw rod; 62. Cover plate; 63. Toothed disc; 64. Gear 1; 65. Stirring rod; 66. Gear 2; 67. Extension rod; 68. L-shaped block; 69. Limiting plate; 610. Sliding plate; 611. Telescopic elastic rod 1; 612. Contact block; 71. Cleaning ring; 72. Cleaning cylinder; 73. Roller; 74. Fixed disc; 75. Bevel block; 76. Sleeve plate; 77. Knocking rod; 78. Paddle plate 2. DETAILED DESCRIPTION

[0022] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 7One embodiment of the present invention is: a nano calcium carbonate modification device for degradable plastics, comprising a base 1, a fixing frame 2 is fixedly installed on the top of the base 1, a modification cylinder 3 is fixedly installed on the bottom of the fixing frame 2, a raw material cylinder 41 is fixedly installed on the surface of the fixing frame 2, a collecting cylinder 42 is fixedly installed on the top of the base 1, a feed pipe 43 is fixedly passed through the circumferential surface of the raw material cylinder 41, a discharge pipe 44 is fixedly passed through the circumferential surface of the base 1, a heating ring 45 is fixedly installed on the surface of the fixing frame 2, a motor 46 is fixedly installed on the top of the fixing frame 2, and a pre-treatment device for pre-screening and breaking up the raw materials is provided on the top of the raw material cylinder 41. The pretreatment device includes a pretreatment cylinder 51, which is fixedly installed on the top of the raw material cylinder 41. A motor 2 52 is fixedly installed on the top of the pretreatment cylinder 51. A centrifugal cylinder 53 is rotatably installed on the inner wall of the pretreatment cylinder 51. A rotating shaft 1 54 rotates through the surface of the raw material cylinder 41. A breaking plate 55 is fixedly installed on the circumferential surface of the rotating shaft 1 54. A sieve plate 1 56 is fixedly installed on the inner wall of the raw material cylinder 41. A paddle plate 1 57 is fixedly installed on the circumferential surface of the rotating shaft 1 54. The paddle plate 1 57 rotates under the action of the rotating shaft 1 54 to paddle the fallen raw materials into the feed pipe 43, and then falls through the feed pipe 43 into the interior of the modification cylinder 3.

[0024] A sieve plate 2 58 is fixedly installed on the inner wall of the modification cylinder 3, the feed pipe 43 is fixedly passed through the modification cylinder 3, the discharge pipe 44 is fixedly passed through the collection cylinder 42, and a transmission belt 1 is connected between the output end of the motor 1 46 and the rotating shaft 1 54. The output end of the motor 1 46 rotates to drive the transmission belt 1, and the rotation of the transmission belt 1 drives the rotating shaft 1 54 to rotate. A hollow hole is provided on the surface of the dial plate 1 57. There are two raw material cylinders 41, and the functions of the two raw material cylinders 41 are respectively to stack nano calcium carbonate raw materials and modified raw materials.

[0025] The circumferential surface of the centrifugal barrel 53 is provided with filter holes. The centrifugal barrel 53 is fixedly connected to the output end of the second motor 52. The first dial plate 57 is slidably connected to the bottom of the inner wall of the raw material barrel 41. The output end of the second motor 52 rotates to drive the centrifugal barrel 53 to rotate. The rotation of the centrifugal barrel 53 will screen out the raw materials inside the stacked modified raw materials through the filter holes by centrifugal force.

[0026] When this embodiment is working, the staff puts the nano calcium carbonate raw material and the modified raw material into the interior of the pretreatment cylinder 51 respectively, starts the motor 2 52, and the output end of the motor 2 52 rotates to drive the centrifugal cylinder 53 to rotate. The centrifugal cylinder 53 rotates to screen out the raw materials stacked inside the modified raw material through the filter holes by centrifugal force. At the same time, the centrifugal cylinder 53 stacked with the nano calcium carbonate raw material rotates to screen out the raw materials inside the calcium carbonate raw material through the filter holes by centrifugal force, and the impurities inside it are accumulated inside the centrifugal cylinder 53, which improves the consistency and uniformity of each raw material in the subsequent process and makes the particle size distribution of the nano calcium carbonate more concentrated. In this way, when mixed with other raw materials, the particle size of each raw material can be guaranteed to be relatively uniform, which is conducive to improving the uniformity of mixing. Subsequently, the raw materials enter the interior of the raw material cylinder 41, and the motor 1 46 is started at the same time. The output end of the motor 1 46 rotates to drive the transmission belt 1 to rotate, and the transmission belt 1 rotates to drive the rotating shaft 1 54 to rotate. The rotating shaft 1 54 rotates to drive the breaking plate 55 to rotate, breaking up The plate 55 rotates to further break up the raw materials to improve their uniformity while avoiding sticking and agglomeration during transportation, which in turn affects the subsequent work process. At the same time, the calcium carbonate raw material is easy to form agglomerates. The breaking operation can break these agglomerates into smaller particles, increase the specific surface area of the particles, and make them more evenly dispersed in the biodegradable plastic matrix, avoiding local enrichment or uneven dispersion, thereby improving the subsequent product performance. The broken raw materials then fall through the sieve plate 1 56. At this time, the paddle plate 1 57 rotates under the action of the rotating shaft 1 54 to push the fallen raw materials into the feed pipe 43, and then fall into the interior of the modification barrel 3 through the feed pipe 43. Then, the calcium carbonate raw material and the modified raw material enter the interior of the modification barrel 3 at the same time for mixing. At this time, the heating ring 45 is started to heat the raw materials inside the modification barrel 3 to make them fully mixed, and then fall through the sieve plate 2 58 and then enter the interior of the collection barrel 42 through the discharge pipe 44 to obtain modified nano calcium carbonate.

[0027] See also Figure 1-Figure 7In another embodiment of the present invention, based on the above embodiment, a stirring device for stirring the mixed raw materials to improve uniformity is provided on the surface of the fixed frame 2. The stirring device includes a screw rod 61. The screw rod 61 rotates and penetrates the surface of the fixed frame 2. A cover plate 62 is fixedly installed on the inner wall of the fixed frame 2. A toothed disc 63 is rotatably installed on the bottom of the cover plate 62. A gear 1 64 is fixedly installed on the circumferential surface of the screw rod 61. A stirring rod 65 is sleeved on the bottom of the cover plate 62. A gear 2 66 is fixedly installed on the circumferential surface of the stirring rod 65. The circumferential surface of the stirring rod 65 is fixedly installed with an extension rod 67, the circumferential surface of the toothed disc 63 is fixedly installed with an L-shaped block 68, the inner wall of the feed pipe 43 is fixedly installed with a limit plate 69, and the contact limit plate 69 limits the feed pipe 43. At this time, the pretreated raw materials inside the raw material barrel 41 pass through the feed pipe 43 and enter the interior of the modifying barrel 3. The inner wall of the feed pipe 43 is slid through with a sliding plate 610, and the inner wall of the feed pipe 43 is fixedly installed with a telescopic elastic rod 611, and the surface of the sliding plate 610 is fixedly installed with a contact block 612.

[0028] Gear 1 64 is engaged with gear 2 66, gear 2 66 is engaged with the toothed disc 63, the screw rod 61 rotates and passes through the screen plate 2 58, the end surface of the L-shaped block 68 away from the toothed disc 63 is set to arc surface 1, the shape of the contact block 612 is set to L-shaped, the end surface of the contact block 612 away from the sliding plate 610 is set to arc surface 2, and the telescopic elastic rod 1 611 is deformed and restored to push the sliding plate 610 to move downward to re-limit the feed pipe 43.

[0029] The circumferential surface of the extension rod 67 is provided with a blade, the surface of the limiting plate 69 is provided with a leakage hole 1, the surface of the sliding plate 610 is provided with a leakage hole 2, leakage hole 1 coincides with leakage hole 2, the free end of the telescopic elastic rod 1 611 is fixedly connected to the sliding plate 610, and the sliding plate 610 moves downward until the leakage hole 2 on its surface coincides with the leakage hole 1 on the surface of the limiting plate 69.

[0030] The circumferential surface of the spiral rod 61 is provided with an anti-clogging device for cleaning and vibrating the sieve plate 2 58 to avoid clogging on its surface. The anti-clogging device includes a cleaning ring 71, which is fixedly mounted on the circumferential surface of the spiral rod 61. A cleaning cylinder 72 is rotatably mounted on the inner wall of the cleaning ring 71. A roller 73 is fixedly mounted on the circumferential surface of the cleaning cylinder 72 away from the spiral rod 61. A fixed disk 74 is fixedly mounted on the circumferential surface of the spiral rod 61. A bevel block 75 is fixedly mounted on the circumferential surface of the fixed disk 74. A sleeve plate 76 is sleeved on the circumferential surface of the cleaning ring 71. A knocking rod 77 is fixedly mounted on the surface of the sleeve plate 76. The movement of the sleeve plate 76 drives the knocking rod 77 to move. The knocking rod 77 moves upward, approaches and contacts the surface of the sieve plate 2 58 to generate vibration. The circumferential surface of the spiral rod 61 is fixedly mounted with a paddle plate 2 78.

[0031] The circumferential surface of the cleaning cylinder 72 is provided with bristles, the surface of the bevel block 75 is set to arc surface three, a spring is provided between the sleeve plate 76 and the fixed plate 74, the angle of the dial plate 2 78 is set to an inclined angle, the roller 73 is in contact with the sieve plate 2 58, and the roller 73 rotates under the action of the sieve plate 2 58, and at the same time, the rotation of the roller 73 drives the cleaning cylinder 72 to rotate.

[0032] When this embodiment is working: the output end of the motor 46 rotates to drive the screw rod 61 to rotate, and the screw rod 61 rotates to drive the gear 1 64 to rotate. Because the gear 1 64 is engaged with the gear 2 66, the gear 1 64 rotates to drive the gear 2 66 to revolve around the screw rod 61 as the center of the circle while rotating. The gear 2 66 rotates to drive the stirring rod 65 to rotate. At the same time, the stirring rod 65 rotates to drive the extension rod 67 to rotate. The extension rod 67 rotates to drive the blade to rotate. At this time, the blade rotates to cut the raw materials accumulated inside the modifying cylinder 3, reduce the size and viscosity of the mixed raw material particles, and cut larger raw material agglomerates or lumps. Crushed, reduce particle size, increase specific surface area of raw materials, the turning of screw rod 61 makes the bottom raw materials fully mixed with the upper raw materials, so that nano calcium carbonate is more evenly dispersed in other raw materials, improves the modification effect, and makes the product performance better. At the same time, the rotation of screw rod 61 will turn the bottom raw materials up to stir and cut them again, avoiding inconsistent or uneven size distribution of raw materials at the bottom and top, and overheating of local areas due to long-term stirring or friction. Overheating may cause changes or degradation of raw material properties. Turning and stirring can effectively protect raw material properties and ensure stable product quality. The disc 63 is engaged, and when the gear 2 66 rotates under the action of the gear 1 64, the gear disc 63 rotates, and the gear disc 63 rotates and drives the L-shaped block 68 to rotate. The L-shaped block 68 rotates to contact and squeeze the contact block 612 to move downward. The contact block 612 moves downward under the action of the L-shaped block 68, driving the sliding plate 610 to move downward. The sliding plate 610 moves downward until the leakage hole 2 on its surface coincides with the leakage hole 1 on the surface of the limiting plate 69. At this time, the contact limiting plate 69 limits the feed pipe 43. At this time, the pretreated raw material inside the raw material barrel 41 passes through the feed pipe 43 and enters the interior of the modifying barrel 3, and then the contact block 61 When the function is lost, the telescopic spring rod 611 is deformed and restored to push the sliding plate 610 downward to re-limit the feed pipe 43, thereby achieving quantitative discharge of materials at the feed pipe 43, avoiding uneven mixing or insufficient stirring and fusion of a batch of discharged materials during the subsequent stirring and heating fusion process, ensuring the accurate ratio of the two raw materials each time, making the product performance stable and consistent, avoiding uneven product quality due to fluctuations in the raw material ratio, and avoiding the burden of subsequent processing due to excess raw materials, such as uneven stirring, excessive processing time, etc., and when the equipment stops, the feed pipe 43 is limited to prevent raw material leakage.

[0033] When the screw rod 61 rotates under the action of the motor 46, it drives the cleaning ring 71 to rotate, and the rotation of the cleaning ring 71 drives the cleaning cylinder 72 to rotate with the screw rod 61 as the center. At the same time, the rotation of the cleaning cylinder 72 drives the roller 73 to rotate. Because the roller 73 is in contact with the sieve plate 2 58, the roller 73 rotates under the action of the sieve plate 2 58. At the same time, the rotation of the roller 73 drives the cleaning cylinder 72 to rotate, and the rotation of the cleaning cylinder 72 drives the brush to rotate. The rotation of the brush cleans the surface of the sieve plate 2 58, further improving the cleaning effect of the sieve plate 2 58, avoiding the surface of the sieve plate 2 58 being blocked by the raw material in the process of passing through the surface of the sieve plate 2 58, thereby affecting the filtering effect of the sieve plate 2 58, and removing these attachments can keep the sieve holes unobstructed, ensuring that the raw material can pass through the sieve plate 2 58 smoothly and maintain stability. The screening efficiency is improved. At the same time, the rotation of the screw rod 61 drives the fixed plate 74 to rotate. The rotation of the fixed plate 74 drives the bevel block 75 to rotate with the screw rod 61 as the center. The bevel block 75 rotates to contact and squeeze the sleeve plate 76 to move upward. At the same time, the movement of the sleeve plate 76 drives the knocking rod 77 to move. The knocking rod 77 moves upward, approaches and contacts the surface of the sieve plate 2 58 to generate vibration. At this time, the sieve plate 2 58 vibrates under the action of the knocking rod 77, realizing the self-cleaning of the sieve plate 2 58, reducing the difficulty and workload of manual cleaning and maintenance, thereby reducing the downtime of the equipment, thereby improving the operating efficiency of the equipment, avoiding excessive accumulation of materials on the sieve plate 2 58, reducing the contact time and friction between the sieve plate and the material, thereby extending the service life of the sieve plate 2 58, and improving the operating stability of the overall equipment.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for modifying nano calcium carbonate in degradable plastics, comprising a base (1), characterized in that: A fixing frame (2) is fixedly mounted on the top of the base (1), a modification cylinder (3) is fixedly mounted on the bottom of the fixing frame (2), a raw material cylinder (41) is fixedly mounted on the surface of the fixing frame (2), a collecting cylinder (42) is fixedly mounted on the top of the base (1), a feed pipe (43) is fixedly passed through the circumferential surface of the raw material cylinder (41), a discharge pipe (44) is fixedly passed through the circumferential surface of the base (1), a heating ring (45) is fixedly mounted on the surface of the fixing frame (2), a motor (46) is fixedly mounted on the top of the fixing frame (2), and a device for feeding the raw material is provided on the top of the raw material cylinder (41). A pretreatment device for pre-screening and breaking up is provided, the pretreatment device comprising a pretreatment cylinder (51), the pretreatment cylinder (51) being fixedly mounted on the top of a raw material cylinder (41), a motor 2 (52) being fixedly mounted on the top of the pretreatment cylinder (51), a centrifugal cylinder (53) being rotatably mounted on the inner wall of the pretreatment cylinder (51), a rotating shaft 1 (54) being rotatably passed through the surface of the raw material cylinder (41), a breaking up plate (55) being fixedly mounted on the circumferential surface of the rotating shaft 1 (54), a sieve plate 1 (56) being fixedly mounted on the inner wall of the raw material cylinder (41), and a paddle plate 1 (57) being fixedly mounted on the circumferential surface of the rotating shaft 1 (54).

2. The nano-calcium carbonate modification device for degradable plastics according to claim 1, characterized in that: A second sieve plate (58) is fixedly mounted on the inner wall of the modification cylinder (3), the feed pipe (43) is fixedly passed through the modification cylinder (3), the discharge pipe (44) is fixedly passed through the collection cylinder (42), a transmission belt (1) is connected between the output end of the motor (46) and the rotating shaft (54), a hollow hole is provided on the surface of the shift plate (57), and two raw material cylinders (41) are provided, and the functions of the two raw material cylinders (41) are to stack the nano calcium carbonate raw material and the modified raw material, respectively.

3. The nano-calcium carbonate modification device for degradable plastics according to claim 2, characterized in that: The circumferential surface of the centrifugal cylinder (53) is provided with filter holes. The centrifugal cylinder (53) is fixedly connected to the output end of the second motor (52). The first shift plate (57) is slidably connected to the bottom of the inner wall of the raw material cylinder (41).

4. The nano-calcium carbonate modification device for degradable plastics according to claim 3, characterized in that: The surface of the fixing frame (2) is provided with a stirring device for stirring the mixed raw materials to improve uniformity, the stirring device comprising a screw rod (61), the screw rod (61) rotates and penetrates the surface of the fixing frame (2), a cover plate (62) is fixedly mounted on the inner wall of the fixing frame (2), a toothed disc (63) is rotatably mounted on the bottom of the cover plate (62), a gear 1 (64) is fixedly mounted on the circumferential surface of the screw rod (61), a stirring rod (65) is sleeved on the bottom of the cover plate (62), and the stirring rod (65) is fixedly mounted on the inner wall of the fixing frame (2). 5) is fixedly mounted with a gear 2 (66) on its circumferential surface, an extension rod (67) is fixedly mounted on the circumferential surface of the stirring rod (65), an L-shaped block (68) is fixedly mounted on the circumferential surface of the toothed disc (63), a limiting plate (69) is fixedly mounted on the inner wall of the feeding tube (43), a sliding plate (610) is slidably passed through the inner wall of the feeding tube (43), a telescopic elastic rod 1 (611) is fixedly mounted on the inner wall of the feeding tube (43), and a contact block (612) is fixedly mounted on the surface of the sliding plate (610).

5. The nano-calcium carbonate modification device for degradable plastics according to claim 4, characterized in that: The gear 1 (64) is meshed with the gear 2 (66), the gear 2 (66) is meshed with the toothed disc (63), the screw rod (61) rotates and passes through the screen plate 2 (58), the end surface of the L-shaped block (68) away from the toothed disc (63) is set as the arc surface 1, the shape of the contact block (612) is set as the L-shape, and the end surface of the contact block (612) away from the sliding plate (610) is set as the arc surface 2.

6. The nano-calcium carbonate modification device for degradable plastics according to claim 5, characterized in that: The circumferential surface of the extension rod (67) is provided with a blade, the surface of the limiting plate (69) is provided with a leakage hole 1, the surface of the sliding plate (610) is provided with a leakage hole 2, the leakage hole 1 and the leakage hole 2 are overlapped, and the free end of the telescopic elastic rod 1 (611) is fixedly connected to the sliding plate (610).

7. The device for modifying nano-calcium carbonate in degradable plastics according to claim 6, characterized in that: The circumferential surface of the spiral rod (61) is provided with an anti-clogging device for cleaning and vibrating the sieve plate 2 (58) to avoid clogging on its surface. The anti-clogging device includes a cleaning ring (71), which is fixedly mounted on the circumferential surface of the spiral rod (61). A cleaning cylinder (72) is rotatably mounted on the inner wall of the cleaning ring (71). A roller (73) is fixedly mounted on the circumferential surface of one end of the cleaning cylinder (72) away from the spiral rod (61). A fixed disk (74) is fixedly mounted on the circumferential surface of the fixed disk (74). A bevel block (75) is fixedly mounted on the circumferential surface of the fixed disk (74). A sleeve plate (76) is sleeved on the circumferential surface of the cleaning ring (71). A knocking rod (77) is fixedly mounted on the surface of the sleeve plate (76). The circumferential surface of the spiral rod (61) is fixedly mounted on the second dial plate (78).

8. The nano-calcium carbonate modification device for degradable plastics according to claim 7, characterized in that: The circumferential surface of the cleaning cylinder (72) is provided with bristles, the surface of the bevel block (75) is provided as arc surface three, a spring is provided between the sleeve plate (76) and the fixed plate (74), the angle of the second shift plate (78) is provided as an inclined angle, and the roller (73) is in contact with the second screen plate (58).

Images