Grinding equipment for dry-method regeneration of sodium silicate-bonded sand and regeneration process
By designing a dispersion grinding unit and a component for cleaning powder, the problem of uneven contact between water glass sand and grinding parts was solved, improving the grinding effect and demolding rate, extending the equipment life, and ensuring the stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QUFU CITY CASTING MATERIAL FACTORY
- Filing Date
- 2023-12-07
- Publication Date
- 2026-04-17
AI Technical Summary
The existing water glass abrasive has uneven contact with the grinding parts, resulting in some water glass abrasive not being able to make full or sufficient contact, leading to poor grinding effect and low demolding rate.
Design a dry regeneration grinding equipment for water glass sand, including a dispersion grinding unit and a grinding coordination component. The water glass sand is removed in batches by a turntable and uniform contact and friction are achieved by utilizing the cooperation between the grinding holes and the grinding disc. A ventilation component and a linkage component are set up to clean up powdery materials and prevent them from affecting the contact friction.
It improves the grinding effect and demolding rate of water glass sand, extends the service life of the equipment, and maintains the stability and cleanliness of equipment operation.
Smart Images
Figure CN121870004A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of grinding equipment, but not limited to, a grinding equipment and regeneration process for dry regeneration of water glass sand. Background Technology
[0002] Water glass sand is a type of foundry sand, mainly composed of silicates. It has high hardness, excellent chemical stability and wear resistance. Water glass sand regeneration is a process that uses certain technical means to process and refurbish old water glass sand.
[0003] There are several methods for regenerating water glass sand, including dry regeneration, wet regeneration, thermal regeneration, and chemical regeneration. Each of these four methods has its own advantages and disadvantages. However, from a production and operation perspective, the dry regeneration method, which has the lowest cost, is more conducive to promotion.
[0004] The principle of dry regeneration is to use mechanical friction, impact or high-frequency vibration between sand particles and between sand particles and machinery to remove the sodium film on the surface of the sand particles. In this process, the grinding equipment plays a key role in the defilming efficiency of water glass sand.
[0005] The aforementioned patent has the following defects:
[0006] When a large amount of water glass sand is mixed together, the contact between the water glass sand and the grinding parts is uneven due to the influence of the distribution area. This results in some water glass sand not being able to contact the grinding parts, or only contacting them for a short time, which leads to poor grinding effect and low demolding rate of the water glass sand in this part.
[0007] After polishing, the sodium film on the surface of old water glass abrasive turns into powder and falls off. The powder mixes with the water glass abrasive, which can prevent the water glass abrasive from contacting the grinding parts, resulting in insufficient contact and reduced polishing effect. Summary of the Invention
[0008] In view of the problems of uneven contact and insufficient contact between water glass sand and grinding parts in the existing technology, a dry regeneration grinding equipment and regeneration process for water glass sand is proposed.
[0009] One aspect of this application provides a dry regeneration and grinding equipment for water glass sand, the purpose of which is to ensure that the water glass sand and the grinding parts are in full and uniform contact, thereby improving the grinding effect.
[0010] The technical solution of the present invention is as follows: a dry regeneration and grinding equipment for water glass sand, comprising a finished product silo, a base disposed at the bottom of the finished product silo, a processing silo disposed at the top of the finished product silo, a top plate disposed at the top of the processing silo, and a feeding pipe disposed at the top of the top plate, and further comprising a dispersion grinding unit.
[0011] The dispersion and grinding unit is installed inside the processing silo and is used to disperse and grind the water glass sand.
[0012] The dispersion grinding unit includes a processing table disposed inside the processing silo, a storage trough disposed on the top of the processing table, a turntable disposed at the bottom of the processing table, a central rotating shaft disposed on the top of the turntable, two sets of slots disposed at the bottom of the processing table, grinding holes disposed at the bottom of the turntable, a discharge hole disposed at the bottom of the processing silo, a grinding disc disposed inside one set of slots, a grinding rotating tube shaft disposed on the top of the grinding disc, and a bushing disposed on the outside of the grinding rotating tube shaft.
[0013] The processing table is located between the processing silo and the top plate. The upper opening of the storage tank coincides with the lower opening of the top plate. The turntable is attached to the inner bottom wall of the processing silo and the bottom wall of the processing table. The grinding hole penetrates the turntable, and the discharge hole penetrates the processing silo. A set of slots is connected to the storage tank. The grinding rotating tube shaft is longitudinally slidably connected to the bushing. The slots, grinding holes, and discharge holes are all distributed around the axis of the processing table, and the circumference of the circumference is the same. The opening diameters of the slots, grinding holes, and discharge holes are the same. The ratio of the number of slots, grinding holes, and discharge holes is 2:3:1. The slots and discharge holes are staggered in the circumferential direction.
[0014] The dispersion grinding unit also includes a power component and a grinding coordination component. The power component is used to provide working power to the grinding disc; the grinding coordination component is used to coordinate the movement of the turntable and the grinding disc.
[0015] Using the above method, water glass sand is taken out in batches by a turntable. When the grinding hole rotates to the bottom of the slot connected to the storage tank, a layer of water glass sand is laid in the grinding hole. When the grinding hole rotates to the bottom of the slot where the grinding disc is set, the grinding disc grinds this layer of water glass sand. When the grinding hole rotates to the top of the discharge hole, the ground water glass sand is discharged. By grinding the water glass sand in batches in this way, the contact between it and the grinding disc is more sufficient, the pressure and friction are more uniform, the surface polishing effect is improved, and the demolding rate is increased.
[0016] Furthermore, the number of grinding holes is an integer multiple of three, corresponding to slots and grinding holes with different functions.
[0017] Furthermore, the power assembly includes a mounting slot disposed on the top of the processing table, a power gear and a driven gear disposed inside the mounting slot, a power shaft disposed on the top of the power gear, and a motor disposed on the top of the power shaft;
[0018] The mounting groove consists of three circular grooves with overlapping edges. The power gear is located at the center of the mounting groove, and the driven gears are distributed on both sides of the mounting groove. Both driven gears mesh with the power gear. The bushing and the grinding rotating tube shaft pass through the processing table and the driven gear. The bushing is fixedly installed with the driven gear. The central rotating shaft passes through the processing table and is fixedly installed with the power gear through the grinding coordination component. The motor is fixedly installed on the top of the top plate.
[0019] By adopting the above solution, a power component is set up to drive two grinding discs with one power source, which can achieve rapid grinding. Moreover, the two grinding discs rotate in opposite directions, which can offset some of the vibrations generated during the rotation of the grinding discs, making the equipment more stable and extending its service life.
[0020] Furthermore, the grinding coordination component includes a coordination spiral groove disposed on the bottom wall of the central area of the mounting groove, a lower retaining groove disposed on the top of the central rotating shaft, an upper retaining groove disposed on the bottom of the power gear, an adjustment groove disposed on the bottom of the power shaft, a push spring disposed inside the adjustment groove, side slots disposed on both sides of the power shaft, an adjustment slide rod disposed at the bottom of the push spring, an upper retaining ring disposed on the outside of the power shaft, a telescopic frame disposed on the outside of the adjustment slide rod, an adjustment pulley disposed at the lower end of the telescopic frame, and a lower retaining plate disposed at the bottom of the adjustment slide rod.
[0021] The power shaft extends to the bottom of the power gear, and the power gear is longitudinally slidably connected to the power shaft. The coordinating spiral groove has three sections: A, B, and C, which are the control transition section, the control grinding section, and the control feeding section, respectively. The control grinding section is set in a spiral shape that spreads from the inside out, and the depth is always the same. The control feeding section and the control transition section pass through the control grinding section, connecting their ends. The depth of the control feeding section gradually increases from shallow to deep, and the depth of the control transition section gradually decreases from deep to shallow. The depths at the connection points of the three sections are the same. The included angle between the two ends of the control grinding section is the same as the included angle between adjacent grinding holes.
[0022] The side slot extends into the adjusting slide groove, the upper retaining ring is slidably connected to the outside of the power shaft, the power shaft is fixedly connected to the adjusting slide rod, and the two sets of connection points are located inside the side slot. The telescopic frame is set as an inverted L-shape, and the telescopic frame extends horizontally. The adjusting pulley is slidably installed in the coordinating spiral slide groove.
[0023] By adopting the above scheme and setting up a grinding coordination component, the rotation of the braking gear and the central shaft will not cause the power gear and the central shaft to rotate at the same time. In this way, when the turntable rotates, the grinding disc stops rotating, avoiding excessive friction between the grinding disc and the top surface of the turntable. This helps to reduce the wear of the equipment, extend the service life of the parts, and make the operation of each component smoother.
[0024] Furthermore, the diameter of the adjusting pulley is greater than the width of the coordinating spiral groove, and the thickness of the adjusting pulley is less than the width of the coordinating spiral groove.
[0025] Using the above scheme, the adjusting pulley slides within the coordinating spiral groove. When the adjusting pulley slides within the controlled grinding section to the junction with the controlled feeding section or the controlled transition section, the front section of the adjusting pulley enters the controlled feeding section or the controlled transition section first, and then re-enters the controlled grinding section. Because the diameter of the adjusting pulley is larger than the width of the coordinating spiral groove, a portion of the adjusting pulley remains within the controlled grinding section during its passage through the controlled feeding section or the controlled transition section. The inner wall of the controlled grinding section restricts the deflection angle of the adjusting pulley, preventing trajectory deviation at the intersection of different sections within the coordinating spiral groove, ensuring that it always moves along the prescribed path and guaranteeing the stability of the equipment operation.
[0026] Furthermore, a cleaning unit is also provided inside the processing silo to remove dust from the water glass sand;
[0027] The cleaning unit includes a ventilation component and a linkage component, which use airflow to clean dust from the water glass sand.
[0028] The ventilation assembly includes a vent hole disposed inside the grinding disc, an exhaust ring groove disposed at the opening of the vent hole, a docking hole disposed on the outside of the grinding rotating tube shaft, a connector disposed on the top of the grinding rotating tube shaft, and an air pipe disposed on the top of the connector.
[0029] The vent hole is C-shaped and both ends are located inside the grinding disc near the grinding rotating tube shaft. A mesh cover is installed at the opening of the exhaust ring groove, and the exhaust ring groove surrounds the outside of the grinding rotating tube shaft.
[0030] The linkage assembly includes a mounting ring disposed on the outside of the grinding rotating tube shaft, a linkage groove disposed on the top of the grinding disc, a linkage slider disposed inside the linkage groove, and a linkage rod disposed between the linkage slider and the mounting ring.
[0031] The linkage slider is slidably connected in the linkage groove, and the two ends of the linkage rod are rotatably connected to the linkage slider and the mounting ring, respectively.
[0032] By adopting the above scheme, and by setting up ventilation components and linkage components, after the grinding disc grinds for a period of time, the grinding rotating tube shaft is pulled upward, causing misalignment between the grinding rotating tube shaft and the grinding disc. The air flowing inside the grinding rotating tube shaft draws out the dust from the surface of the water glass sand that is being ground through the vent holes. In this way, the powdery material ground off the water glass sand is cleaned while grinding, preventing these powdery materials from mixing in the water glass sand and affecting the contact and friction between the water glass sand and the grinding disc, thereby further improving the grinding effect and increasing the demolding efficiency.
[0033] Furthermore, the cleaning unit also includes an air exchange component for maintaining smooth airflow between the ventilation component and the linkage component;
[0034] The ventilation assembly includes a mounting base at the bottom of the processing silo, a ventilation cylinder inside the ventilation cylinder, a ventilation hole on the surface of the ventilation cylinder, an air inlet ring groove at the opening of the ventilation hole, a connecting rope between the ventilation cylinder and the mounting base, and a ventilation connector on the outside of the finished product silo.
[0035] The ventilation hole extends into the interior of the ventilation cylinder, which extends through the processing silo to directly below the grinding disc. Magnetic blocks are installed inside both the ventilation cylinder and the grinding rotating tube shaft, and barrier nets are installed at the openings of the air inlet ring groove and the ventilation cylinder.
[0036] By adopting the above scheme, and by setting up an air exchange component, during the process of the grinding rotating tube shaft being lifted to expose the vent hole, the air exchange cylinder is driven upward by the magnetic block and enters the grinding hole, exposing the vent hole inside the grinding hole. The grinding rotating tube shaft draws in air, reducing the air pressure inside the grinding hole. Outside air enters the grinding hole through the change component to balance the pressure. This makes the air flow inside the grinding hole smoother, resulting in a better cleaning effect on the powdery matter in the water glass sand. At the same time, since the air exchange cylinder protrudes from below the water glass sand and the vent hole is buried inside the water glass sand, the flowing air can turn the water glass sand up, making it easier for the powdery matter inside the water glass sand to be carried away by the airflow, further enhancing the cleaning effect.
[0037] Furthermore, the cleaning unit also includes a variable component for controlling the working status of the ventilation component, the linkage component, and the air exchange component;
[0038] The variable component includes a base disposed on the top of the top plate, a variable spiral groove disposed on the top of the base, a variable groove disposed at the bottom of the connector, a variable slider disposed inside the variable groove, a telescopic rod disposed at the bottom of the variable slider, and a variable roller disposed at the bottom of the telescopic rod.
[0039] The variable spiral groove has five sections: D, E, F, G, and H, which are the transition section, the lower extension section, the grinding section, the ventilation section, and the reset section, respectively. The lower extension section, the grinding section, and the ventilation section are arranged in a spiral shape that diffuses from the inside out. The transition section and the reset section connect them end to end. The depth of the transition section and the grinding section is always the same. The depth of the lower extension section and the reset section gradually increases from shallow to deep, while the depth of the ventilation section gradually decreases from shallow to shallow.
[0040] The variable roller is slidably installed inside the variable spiral groove. The diameter of the adjustable roller is greater than the width of the coordinating spiral groove, and the thickness of the adjustable roller is less than the width of the coordinating spiral groove.
[0041] By adopting the above scheme, the height of the grinding rotating tube shaft is controlled by the change in the depth of the platform, so that the grinding disc changes back and forth between the cleaning state and the grinding state. In the grinding state, the grinding disc enters the grinding hole to enhance the grinding effect. In the cleaning state, the grinding disc retracts into the groove to increase the airflow space. At the same time, the grinding disc is in the cleaning state when the turntable rotates, so as to avoid the turntable movement being obstructed. All components work in coordination.
[0042] Furthermore, the present invention also provides a dry regeneration process for water glass sand, comprising the following steps:
[0043] Step 1: Material preparation: Crush the water glass sand to reduce the amount of lumps;
[0044] Step 2, Cleaning: Rinse the water glass sand with running water to remove surface impurities and oil, then dry it for later use;
[0045] Step 3: Screening and grading: The dried water glass sand is screened and graded to obtain the required particle size and distribution. Different grades of water glass sand are processed in batches.
[0046] Step 4: Grinding treatment: The screened water glass sand is put into a grinding equipment for grinding treatment. The purpose of grinding is to remove the sodium oxide layer and other contaminants on the surface through friction, impact and other actions.
[0047] Step 5, Dust Removal: Use vibration and airflow to remove the dust produced during the grinding of water glass sand.
[0048] Furthermore, the grinding equipment is operated as follows:
[0049] ① Add water glass sand into the storage tank, start the motor, and the power shaft and adjusting slide rod start to rotate. Initially, the lower clamping plate and the lower clamping groove cooperate. The power shaft drives the central rotating shaft to drive the turntable to rotate. When the grinding hole rotates to the lower part of the groove connected to the storage tank, a layer of water glass sand is laid in the grinding hole. Then, guided by the coordinated spiral slide, the adjusting slide rod moves upward, the upper clamping ring cooperates with the upper clamping groove, the power gear starts to rotate, and the driven gear drives the grinding disc to rotate. Then, the adjusting slide rod moves downward again, the turntable rotates, and when the grinding hole rotates to the lower part of the groove where the grinding disc is set, the rotating grinding disc grinds this layer of water glass sand. Repeat the above process. When the grinding hole rotates to the upper part of the discharge hole, the ground water glass sand is discharged.
[0050] ② When the grinding disc and grinding rotating tube shaft rotate, the connector drives the variable roller to slide in the variable spiral groove. The movement of the grinding rotating tube shaft is controlled by the inclined surface at the bottom of the variable spiral groove. When the grinding hole carries water glass sand to the bottom of the grinding disc, the grinding rotating tube shaft pushes the grinding disc down. The grinding disc enters the grinding hole and presses the water glass sand, and the grinding work begins.
[0051] ③ After grinding for a period of time, the grinding rotating tube shaft is pulled upward, and the grinding rotating tube shaft and the grinding disc are misaligned. The lower opening of the vent hole is exposed, and the upper opening of the vent hole is connected with the docking hole. The air flowing inside the grinding rotating tube shaft acts on the water glass sand in the grinding hole through the vent hole, and sucks out the dust ground by the water glass sand. Then the grinding rotating tube shaft is driven to move downward and reset.
[0052] ④ During the upward movement of the grinding rotating tube shaft, the air exchange cylinder is driven upward by magnetic force, so that the air exchange hole is exposed in the grinding hole. The air in the grinding hole flows to the air vent, and the air exchange hole replenishes the grinding hole with air to maintain pressure balance. After the grinding rotating tube shaft is reset, the air exchange cylinder is also reset.
[0053] The beneficial effects of this invention are:
[0054] 1. Water glass sand is taken out in batches by a turntable. When the grinding hole rotates to the bottom of the slot connected to the storage tank, a layer of water glass sand is laid in the grinding hole. When the grinding hole rotates to the bottom of the slot where the grinding disc is set, the grinding disc grinds this layer of water glass sand. When the grinding hole rotates to the top of the discharge hole, the ground water glass sand is discharged. The water glass sand is ground in batches in this way to make it more fully contacted with the grinding disc, and the pressure and friction it receives are more uniform, thus improving the surface polishing effect and increasing the demolding rate.
[0055] 2. By setting up a grinding coordination component, the rotation of the braking force gear and the central shaft will not be synchronized. This way, when the turntable rotates, the grinding disc stops rotating, avoiding excessive friction between the grinding disc and the top surface of the turntable. This helps reduce wear on the equipment, extends the service life of parts, and makes the operation of each component smoother.
[0056] 3. The adjusting pulley slides within the coordinating spiral groove. When the adjusting pulley slides within the controlled grinding section to the junction with the controlled feeding section or the controlled transition section, the front section of the adjusting pulley enters the controlled feeding section or the controlled transition section first, and then re-enters the controlled grinding section. Because the diameter of the adjusting pulley is larger than the width of the coordinating spiral groove, a portion of the adjusting pulley remains within the controlled grinding section during its passage through the controlled feeding section or the controlled transition section. The inner wall of the controlled grinding section restricts the deflection angle of the adjusting pulley, preventing trajectory deviation at the intersection of different sections within the coordinating spiral groove, ensuring that it always moves along the prescribed path and guaranteeing the stability of the equipment operation.
[0057] 4. By setting up ventilation and linkage components, after the grinding disc grinds for a period of time, the grinding rotating tube shaft is pulled upward, causing misalignment between the grinding rotating tube shaft and the grinding disc. The air flowing inside the grinding rotating tube shaft draws out the dust from the surface of the water glass sand that is being ground through the vent holes. In this way, the powdery material ground off the water glass sand is cleaned while grinding, preventing these powdery materials from mixing in the water glass sand and affecting the contact and friction between the water glass sand and the grinding disc, thereby further improving the grinding effect and increasing the demolding efficiency.
[0058] 5. By setting up an air exchange component, during the process of the grinding rotating tube shaft being lifted to expose the vent hole, the air exchange cylinder is driven upward by the magnetic block and enters the grinding hole, exposing the vent hole. The grinding rotating tube shaft draws in air, reducing the air pressure inside the grinding hole. Outside air enters the grinding hole through the change component to balance the pressure, making the air flow inside the grinding hole smoother and improving the cleaning effect on the powdery matter in the water glass sand. At the same time, since the air exchange cylinder protrudes from below the water glass sand and the vent hole is buried inside the water glass sand, the flowing air can turn the water glass sand up, making it easier for the powdery matter inside the water glass sand to be carried away by the airflow, further enhancing the cleaning effect. Attached Figure Description
[0059] Figure 1 This is a perspective view of Embodiment 1 of the present invention;
[0060] Figure 2 This is a top view of the disassembled invention.
[0061] Figure 3 This is a bottom view of the disassembled invention;
[0062] Figure 4 This is an anatomical diagram of the top plate of the present invention;
[0063] Figure 5 This is a schematic diagram of the top of the processing table of the present invention;
[0064] Figure 6 This is a top view of the disassembled processing silo and processing table of the present invention;
[0065] Figure 7 This is a bottom view of the disassembled processing silo and processing table of the present invention;
[0066] Figure 8 This is an anatomical diagram of the processing table of the present invention;
[0067] Figure 9 This is a schematic diagram of the interior of the processing table of the present invention;
[0068] Figure 10 This is a cross-sectional view of the processing table of the present invention;
[0069] Figure 11This is a schematic diagram of the grinding coordination component of the present invention;
[0070] Figure 12 This is an exploded view of the grinding coordination component of the present invention;
[0071] Figure 13 This is a top view of the processing table of the present invention;
[0072] Figure 14 This is a diagram showing the coordinated helical groove in a flat state according to the present invention;
[0073] Figure 15 This is a schematic diagram of the linkage component in Embodiment 2 of the present invention;
[0074] Figure 16 This is a schematic diagram of the interior of the grinding disc of the present invention;
[0075] Figure 17 This is a schematic diagram of the ventilation assembly in Embodiment 3 of the present invention;
[0076] Figure 18 This is a schematic diagram of the modified components of the present invention;
[0077] Figure 19 This is a schematic diagram of the variable spiral groove of the present invention;
[0078] Figure 20 This is a diagram showing the flattened state of the variable spiral groove of the present invention.
[0079] In the picture:
[0080] 1. Finished product silo; 2. Base; 3. Processing silo; 4. Processing table; 5. Top plate; 6. Feeding pipe; 7. Storage trough; 8. Ventilation connector; 9. Power assembly; 10. Grinding coordination assembly; 11. Turntable; 12. Central rotating shaft; 13. Groove; 14. Grinding hole; 15. Discharge hole; 16. Grinding disc; 17. Grinding rotating tube shaft; 18. Bushing; 19. Mounting groove; 20. Power gear; 21. Power shaft; 22. Motor; 23. Driven gear; 24. Coordinating spiral groove; 25. Lower slot; 26. Upper slot; 27. Adjusting groove; 28. Push spring; 29. Side groove; 30. Adjustment 31. Slide rod; 32. Upper retaining ring; 33. Telescopic frame; 34. Adjusting pulley; 35. Lower retaining plate; 36. Ventilation assembly; 37. Linkage assembly; 38. Air exchange assembly; 39. Variation assembly; 40. Vent hole; 41. Air pipe; 42. Mounting ring; 43. Linkage slide groove; 44. Linkage slider; 45. Linkage rod; 46. Mounting base; 47. Air exchange cylinder; 48. Air exchange hole; 49. Air inlet ring groove; 50. Connecting rope; 51. Base; 52. Variation spiral slide groove; 53. Variation slide groove; 54. Variation slider; 55. Telescopic rod; 56. Variation roller; 57. Exhaust ring groove; 58. Connector. Detailed Implementation
[0081] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0082] Example 1, referring to Figure 1-14 The first embodiment of the present invention provides a dry regeneration and grinding equipment for water glass sand, including a finished product silo 1, a base 2 disposed at the bottom of the finished product silo 1, a processing silo 3 disposed at the top of the finished product silo 1, a top plate 5 disposed at the top of the processing silo 3, and a feeding pipe 6 disposed at the top of the top plate 5, and also includes a dispersion grinding unit.
[0083] The dispersion and grinding unit is installed inside the processing silo 3 and is used to disperse and grind the water glass sand.
[0084] Specifically, the finished product silo 1 and the base 2 are fixed together by bolts, and the finished product silo 1 and the processing silo 3 are fixed together by bolts.
[0085] Reference Figure 6-10 The dispersion grinding unit includes a processing table 4 disposed inside the processing silo 3, a storage tank 7 disposed on the top of the processing table 4, a turntable 11 disposed on the bottom of the processing table 4, a central rotating shaft 12 disposed on the top of the turntable 11, two sets of slots 13 disposed on the bottom of the processing table 4, a grinding hole 14 disposed on the bottom of the turntable 11, a discharge hole 15 disposed on the bottom of the processing silo 3, a grinding disc 16 disposed inside one set of slots 13, a grinding rotating tube shaft 17 disposed on the top of the grinding disc 16, and a bushing 18 disposed on the outside of the grinding rotating tube shaft 17.
[0086] Specifically, the processing table 4 is located between the processing silo 3 and the top plate 5. The processing table 4, the top plate 5, and the processing silo 3 are fixed together by bolts. The upper opening of the storage trough 7 coincides with the lower opening of the top plate 5. The turntable 11 is attached to the inner bottom wall of the processing silo 3 and the bottom wall of the processing table 4. The grinding hole 14 penetrates the turntable 11, and the discharge hole 15 penetrates the processing silo 3. A set of slots 13 communicates with the storage trough 7. The inner bottom wall of the storage trough 7 is inclined, and the side near the slot 13 is lower. Grinding ceramic plates are attached to the bottom surface of the grinding disc 16 and the inner bottom surface of the slot 13 to enhance the grinding effect. The grinding effect is achieved by longitudinally sliding the grinding rotating tube shaft 17 and the bushing 18. The groove 13, grinding hole 14, and discharge hole 15 are all distributed around the axis of the processing table 4, with the same circumference. The opening diameters of the groove 13, grinding hole 14, and discharge hole 15 are the same. The ratio of the number of grooves 13, grinding holes 14, and discharge holes 15 is 2:3:1. The grooves 13 and discharge holes 15 are staggered in the circumferential direction. The number of grinding holes 14 is an integer multiple of three, corresponding to grooves 13 and grinding holes 14 with different functions. The number of grinding holes 14 can be six or nine.
[0087] The dispersion grinding unit also includes a power component 9 and a grinding coordination component 10. The power component 9 is used to provide working power to the grinding disc 16; the grinding coordination component 10 is used to coordinate the movement of the turntable 11 and the grinding disc 16.
[0088] Water glass sand is taken out in batches by the turntable 11. When the grinding hole 14 rotates to the bottom of the slot 13 connected to the storage tank 7, a layer of water glass sand is laid in the grinding hole 14. When the grinding hole 14 rotates to the bottom of the slot 13 where the grinding disc 16 is set, the grinding disc 16 grinds this layer of water glass sand. When the grinding hole 14 rotates to the top of the discharge hole 15, the ground water glass sand is thrown out. The water glass sand is ground in batches in this way, so that the contact between it and the grinding disc 16 is more sufficient, the pressure and friction are more uniform, the surface polishing effect is improved, and the demolding rate is increased.
[0089] Reference Figure 5-9 The power assembly 9 includes a mounting slot 19 disposed on the top of the processing table 4, a power gear 20 and a driven gear 23 disposed inside the mounting slot 19, a power shaft 21 disposed on the top of the power gear 20, and a motor 22 disposed on the top of the power shaft 21.
[0090] Specifically, the mounting groove 19 consists of three circular grooves with overlapping edges. The power gear 20 is located at the center of the mounting groove 19, and the driven gears 23 are distributed on both sides of the mounting groove 19. Both driven gears 23 mesh with the power gear 20. The bushing 18 and the grinding rotating tube shaft 17 pass through the processing table 4 and the driven gears 23. The bushing 18 and the driven gears 23 are fixedly installed by bolts. The central rotating shaft 12 passes through the processing table 4 and is fixedly installed with the power gear 20 through the grinding coordination assembly 10. The motor 22 is fixedly installed on the top of the top plate 5. The circumference of the power gear 20 is greater than that of the driven gear 23, which increases the number of rotations of the grinding disc 16 in a single grinding operation and enhances the grinding effect.
[0091] By setting up the power component 9, a single power source drives two grinding discs 16, achieving rapid grinding. Furthermore, the two grinding discs 16 rotate in opposite directions, which can offset some of the vibrations generated during the rotation of the grinding discs 16, making the equipment more stable and extending its service life.
[0092] Reference Figure 10-14The grinding coordination component 10 includes a coordination spiral groove 24 disposed on the bottom wall of the central area of the mounting groove 19, a lower slot 25 disposed on the top of the central rotating shaft 12, an upper slot 26 disposed on the bottom of the power gear 20, an adjustment groove 27 disposed on the bottom of the power shaft 21, a push spring 28 disposed inside the adjustment groove 27, side slots 29 disposed on both sides of the power shaft 21, an adjustment rod 30 disposed on the bottom of the push spring 28, an upper retaining ring 31 disposed on the outside of the power shaft 21, a telescopic frame 32 disposed on the outside of the adjustment rod 30, an adjustment pulley 33 disposed at the lower end of the telescopic frame 32, and a lower retaining plate 34 disposed on the bottom of the adjustment rod 30.
[0093] Specifically, the power shaft 21 extends to the bottom of the power gear 20, and the power gear 20 is longitudinally slidably connected to the power shaft 21. The coordinating spiral groove 24 has three sections: A, B, and C, which are respectively a control transition section, a control grinding section, and a control feeding section. The control grinding section is designed as a spiral that diffuses from the inside out, and its depth remains the same throughout. The control feeding section and the control transition section pass through the control grinding section, connecting them end to end. The depth of the control feeding section gradually increases from shallow to deep, while the depth of the control transition section gradually decreases from deep to shallow. The connection points of the three sections—control grinding section, control feeding section, and control transition section—have the same depth. Figure 14 As shown, the included angle between the beginning and end of the grinding section (the included angle between the two connecting lines drawn from the beginning and end of the grinding section to the axis of the power gear 20) and the included angle between adjacent grinding holes 14 (the included angle between the two connecting lines drawn from the center of the two adjacent grinding holes 14 to the axis of the power gear 20) are the same.
[0094] The side slot 29 extends into the adjusting slide groove 27. The upper retaining ring 31 is slidably connected to the outside of the power shaft 21. The power shaft 21 is fixedly connected to the adjusting slide rod 30, and the two sets of connection points are located in the side slot 29. The telescopic frame 32 is set as an inverted L-shape, and the telescopic frame 32 telescopic direction is horizontal. The telescopic frame 32 slides in the side slot 29. The adjusting pulley 33 is slidably installed in the coordinating spiral slide groove 24. The lower retaining groove 25, the upper retaining groove 26, the upper retaining ring 31 and the lower retaining plate 34 are all irregularly shaped. The lower retaining groove 25 and the lower retaining plate 34 are matched in shape, and the upper retaining groove 26 and the upper retaining ring 31 are matched in shape.
[0095] By setting the grinding coordination component 10, the rotation of the braking gear 20 and the central rotating shaft 12 will prevent the power gear 20 and the central rotating shaft 12 from rotating at the same time. In this way, when the turntable 11 rotates, the grinding disc 16 stops rotating, avoiding excessive friction between the top surface of the grinding disc 16 and the turntable 11. This helps to reduce the wear of the equipment, extend the service life of the parts, and make the operation of each component smoother.
[0096] Specifically, the diameter of the adjusting pulley 33 is greater than the width of the coordinating spiral groove 24, and the thickness of the adjusting pulley 33 is less than the width of the coordinating spiral groove 24.
[0097] The adjusting pulley 33 slides within the coordinating spiral groove 24. When the adjusting pulley 33 slides within the controlled grinding section to the junction with the controlled feeding section or the controlled transition section, the front section of the adjusting pulley 33 enters the controlled feeding section or the controlled transition section first, and then re-enters the controlled grinding section. Since the diameter of the adjusting pulley 33 is larger than the width of the coordinating spiral groove 24, a portion of the adjusting pulley 33 remains within the controlled grinding section during its passage through the controlled feeding section or the controlled transition section. The inner wall of the controlled grinding section restricts the deflection angle of the adjusting pulley 33, preventing trajectory deviation at the junction of different sections within the coordinating spiral groove 24, ensuring that it always moves along the prescribed path and guaranteeing the stability of the equipment operation.
[0098] During use, water glass sand is fed into the storage tank 7 from the feeding pipe 6. The water glass sand in the storage tank 7 gathers towards the slot 13 connected to it and finally falls onto the upper surface of the turntable 11. The motor 22 is started, and the motor 22 drives the power shaft 21 and the adjusting slide rod 30 to start rotating. The initial adjusting pulley 33 is located in the control transition section in the coordination spiral slide 24, the adjusting slide rod 30 is in the low zone, and the lower clamping plate 34 is clamped in the lower clamping slot 25. The adjusting slide rod 30 drives the central rotating shaft 12 to rotate, the central rotating shaft 12 drives the turntable 11 to rotate, and the turntable 11 drives the grinding hole 14 to rotate between the processing silo 3 and the processing table 4. When the grinding hole 14 rotates to the slot 13 connected to the storage tank 7, the water glass sand in the slot 13 falls into the grinding hole 14 and a layer is laid in the grinding hole 14.
[0099] As the adjusting slide bar 30 rotates, the telescopic frame 32 drives the adjusting pulley 33 to rotate. The adjusting pulley 33 slides into the controlled grinding section within the coordinating spiral groove 24, where the coordinating spiral groove 24 becomes shallower. The adjusting pulley 33 pushes the telescopic frame 32 upward, and the telescopic frame 32 drives the adjusting slide bar 30 to rise into the high zone. The lower clamping plate 34 and the lower clamping groove 25 separate, and the upper clamping ring 31 enters the upper clamping groove 26. The central rotating shaft 12 and the turntable 11 stop rotating. The adjusting slide bar 30 begins to drive the power gear 20 to rotate. The power gear 20 drives the driven gears 23 meshing on both sides to rotate. The driven gears 23 drive the grinding rotating tube shaft 17 to rotate through the bushing 18. The grinding rotating tube shaft 17 drives the grinding disc 16 to rotate in the groove 1. As the adjusting slide bar 30 rotates, the adjusting pulley 33 enters the controlled feeding section, coordinating the spiral chute 24 to deepen. The adjusting slide bar 30 moves down into the low zone, driving the central rotating shaft 12 and the turntable 11 to rotate. The grinding disc 16 stops rotating, and the grinding hole 14 containing water glass sand rotates to below the grinding disc 16. Then, the adjusting slide bar 30 enters the high zone again, and the rotating grinding disc 16 grinds the water glass sand in the grinding hole 14 to remove the surface sodium film. Then, the adjusting slide bar 30 enters the low zone, the turntable 11 rotates, and the grinding hole 14 containing water glass sand rotates to above the discharge hole 15. The water glass sand in the grinding hole 14 falls into the finished product silo 1, thus completing one process. This process is repeated continuously.
[0100] Example 2, refer to Figure 15-16 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a cleaning unit is also provided inside the processing silo 3 for cleaning dust from the water glass sand.
[0101] The cleaning unit includes a ventilation component 35 and a linkage component 36, which use airflow to clean dust from the water glass sand.
[0102] The ventilation assembly 35 includes a vent 39 disposed inside the grinding disc 16, an exhaust ring groove 57 disposed at the opening of the vent 39, a docking hole 40 disposed outside the grinding rotating tube shaft 17, a connector 58 disposed at the top of the grinding rotating tube shaft 17, and an air pipe 41 disposed at the top of the connector 58.
[0103] Specifically, the vent 39 is C-shaped and both ends are located inside the grinding disc 16 near the grinding rotating tube shaft 17. A mesh cover is installed at the opening of the exhaust ring groove 57. The exhaust ring groove 57 surrounds the outside of the grinding rotating tube shaft 17. The grinding disc 16 is slidably connected to the grinding rotating tube shaft 17. The air pipe 41 is rotatably connected to the connector 58. The air pipe 41 is externally connected to a suction device, which can be a fan.
[0104] The linkage assembly 36 includes a mounting ring 42 disposed on the outside of the grinding rotating tube shaft 17, a linkage groove 43 disposed on the top of the grinding disc 16, a linkage slider 44 disposed inside the linkage groove 43, and a linkage rod 45 disposed between the linkage slider 44 and the mounting ring 42.
[0105] Specifically, the linkage slider 44 is slidably connected in the linkage groove 43, the mounting ring 42 is fixedly installed with the grinding rotating tube shaft 17, and the two ends of the linkage rod 45 are rotatably connected to the linkage slider 44 and the mounting ring 42 respectively. The mounting ring 42 is located above the grinding disc 16.
[0106] By setting up the ventilation component 35 and the linkage component 36, after the grinding disc 16 grinds for a period of time, the grinding rotating tube shaft 17 is pulled upward, and the grinding rotating tube shaft 17 and the grinding disc 16 are misaligned. The air flowing in the grinding rotating tube shaft 17 draws out the dust ground from the surface of the water glass sand through the vent 39 acting on the water glass sand in the grinding hole 14. In this way, the powder ground off the water glass sand is cleaned while grinding, so as to avoid these powders from being mixed in the water glass sand and affecting the contact and friction between the water glass sand and the grinding disc 16, thereby further improving the grinding effect and increasing the demolding efficiency.
[0107] The remaining structure is the same as that in Example 1.
[0108] Example 3, referring to Figure 12-14 This is the third embodiment of the present invention, which differs from the second embodiment in that the cleaning unit further includes an air exchange component 37 for maintaining smooth airflow between the ventilation component 35 and the linkage component 36;
[0109] The ventilation assembly 37 includes a mounting base 46 disposed at the bottom of the processing silo 3, a ventilation cylinder 47 disposed inside the ventilation cylinder 47, a ventilation hole 48 disposed on the surface of the ventilation cylinder 47, an air inlet ring groove 49 disposed at the opening of the ventilation hole 48, a connecting rope 50 disposed between the ventilation cylinder 47 and the mounting base 46, and a ventilation connector 8 disposed on the outside of the finished product silo 1.
[0110] The ventilation hole 48 extends into the interior of the ventilation cylinder 47, which extends through the processing silo 3 to directly below the grinding disc 16. Magnetic blocks are installed inside both the ventilation cylinder 47 and the grinding rotating tube shaft 17. Barrier meshes are installed at the openings of the air inlet ring groove 49 and the ventilation cylinder 47.
[0111] Using the above scheme, by setting the air exchange component 37, during the process of the grinding rotating tube shaft 17 being lifted to expose the vent 39, the air exchange cylinder 47 is moved upward by the magnetic block and enters the grinding hole 14, exposing the vent 48 inside the grinding hole 14. The grinding rotating tube shaft 17 draws air to reduce the air pressure inside the grinding hole 14, and outside air enters the grinding hole 14 through the change component 38 to balance the pressure. This makes the air flow inside the grinding hole 14 smoother, resulting in a better cleaning effect on the powder in the water glass sand. At the same time, since the air exchange cylinder 47 protrudes from below the water glass sand and the vent 48 is buried inside the water glass sand, the flowing air can turn the water glass sand up, making it easier for the powder in the water glass sand to be carried away by the airflow, further enhancing the cleaning effect.
[0112] The cleaning unit also includes a variable component 38 for controlling the working status of the ventilation component 35, the linkage component 36, and the air exchange component 37;
[0113] The variable component 38 includes a base 51 disposed on the top of the top plate 5, a variable spiral groove 52 disposed on the top of the base 51, a variable groove 53 disposed on the bottom of the connector 58, a variable slider 54 disposed inside the variable groove 53, a telescopic rod 55 disposed on the bottom of the variable slider 54, and a variable roller 56 disposed on the bottom of the telescopic rod 55.
[0114] Specifically, the variable spiral groove 52 has five sections: D, E, F, G, and H, which are respectively a transition section, a lower extension section, a grinding section, a venting section, and a reset section. The lower extension section, grinding section, and venting section are arranged in a spiral shape that diffuses from the inside out. The transition section and the reset section connect them end to end. The depth of the transition section and the grinding section is always the same. The depth of the lower extension section and the reset section gradually increases from shallow to deep, while the depth of the venting section gradually decreases. Figure 20 As shown;
[0115] The variable roller 56 is slidably installed inside the variable spiral groove 52. The diameter of the adjusting pulley 33 is greater than the width of the coordinating spiral groove 24, and the thickness of the adjusting pulley 33 is less than the width of the coordinating spiral groove 24.
[0116] By adopting the above scheme, by setting the variable component 38, the height of the grinding rotating tube shaft 17 is controlled by the depth change of the platform 51, so that the grinding disc 16 changes back and forth between the cleaning state and the grinding state. In the grinding state, the grinding disc 16 enters the grinding hole 14 to enhance the grinding effect. In the cleaning state, the grinding disc 16 retracts into the groove 13 to increase the airflow space. At the same time, the grinding disc 16 is in the cleaning state when the turntable 11 rotates, so as to avoid the movement of the turntable 11 being obstructed. All components work in coordination.
[0117] During operation, the driven gear 23 drives the grinding rotating tube shaft 17 to rotate via the bushing 18. The grinding rotating tube shaft 17 drives the grinding disc 16 and the connector 58 to rotate. When the suction device is activated, it creates a negative pressure inside the grinding rotating tube shaft 17. The rotation of the connector 58 causes the variable slider 54, telescopic rod 55, and variable roller 56 in the variable slide groove 53 to rotate accordingly. The variable roller 56 slides in the variable spiral slide groove 52. Initially, the variable roller 56 is located in the transition section, and the bottom surface of the grinding disc 16 is flush with the bottom surface of the processing table 4. Subsequently, the variable roller 56 slides into the lower extension section, the variable spiral groove 52 becomes deeper, the variable roller 56 moves down, the connector 58 and the grinding rotating tube shaft 17 also move down, the grinding rotating tube shaft 17 pushes the grinding disc 16 down into the grinding hole 14, pressing the water glass sand tightly, at the same time the grinding rotating tube shaft 17 approaches the magnetic block of the air cylinder 47 and begins to interact with it, then the variable roller 56 enters the grinding section, the depth of the variable spiral groove 52 no longer changes, the height of the grinding disc 16 no longer changes, only rotating to grind the water glass sand;
[0118] After grinding for a period of time, the variable roller 56 enters the ventilation section, the depth of the variable spiral groove 52 becomes shallower, the variable roller 56 and the connector 58 rise, and the grinding rotating tube shaft 17 also moves upward. The grinding disc 16 remains in place, and the grinding rotating tube shaft 17 and the grinding disc 16 become misaligned. The lower opening of the vent hole 39 is exposed, and the upper opening of the vent hole 39 aligns with the docking hole 40. The air flowing inside the grinding rotating tube shaft 17, through the vent hole 39, draws out the dust generated by grinding the water glass sand in the grinding hole 14. During the movement of the grinding rotating tube shaft 17, the mounting ring 42 pulls the linkage rod 45, causing the linkage rod 45 to change from horizontal to inclined. The linkage slider 44 is pulled to slide within the linkage groove 43. When the linkage slider 44 moves to the end of the linkage groove 43, the grinding rotating tube shaft 17 drives the grinding disc 16 to move upward through the linkage rod 45, causing the grinding disc 16 to retract into the groove 13. At the same time, the upward movement of the grinding rotating tube shaft 17 also drives the air exchange cylinder 47 to move upward synchronously through the magnetic block. The air exchange cylinder 47 moves upward into the grinding hole 14, exposing the air exchange hole 48 inside the grinding hole 14. The air inside the grinding hole 14 flows to the vent 39 to form a low-pressure area. The air exchange hole 48 then replenishes the grinding hole 14 with air to maintain pressure balance. In this way, air continuously flows from the finished product silo 1 into the grinding hole 14 and is then drawn out by the grinding rotating tube shaft 17, forming a passage.
[0119] Subsequently, the variable roller 56 enters the reset section, the variable roller 56 and the connector 58 move down, the grinding rotating tube shaft 17 and the grinding disc 16 move down, and the bottom surface of the grinding disc 16 is flush with the bottom surface of the processing table 4. This is repeated 3-7 times. When the grinding disc 16 retracts into the groove 13, the turntable 11 rotates to switch the position of the grinding hole 14.
[0120] The remaining structure is the same as that in Example 2.
[0121] Example 4, refer to Figure 1-14 The fourth embodiment of the present invention provides a dry regeneration process for water glass sand, comprising the following steps:
[0122] Step 1: Material preparation: Crush the water glass sand to reduce the amount of lumps;
[0123] Step 2, Cleaning: Rinse the water glass sand with running water to remove surface impurities and oil, then dry it for later use;
[0124] Step 3: Screening and grading: The dried water glass sand is screened and graded to obtain the required particle size and distribution. Different grades of water glass sand are processed in batches.
[0125] Step 4: Grinding treatment: The screened water glass sand is put into a grinding equipment for grinding treatment. The purpose of grinding is to remove the sodium oxide layer and other contaminants on the surface through friction, impact and other actions.
[0126] Step 5, Dust Removal: Use vibration and airflow to remove the dust produced during the grinding of water glass sand.
[0127] The specific operation of the grinding equipment is as follows:
[0128] ① Water glass sand is fed into the storage tank 7 from the feeding pipe 6. The water glass sand in the storage tank 7 gathers into the slot 13 connected to it and finally falls onto the upper surface of the turntable 11. The motor 22 is started. The motor 22 drives the power shaft 21 and the adjusting slide rod 30 to start rotating. The initial adjusting pulley 33 is located in the control transition section in the coordination spiral slide 24. The adjusting slide rod 30 is in the low zone. The lower clamping plate 34 is clamped in the lower clamping slot 25. The adjusting slide rod 30 drives the central rotating shaft 12 to rotate. The central rotating shaft 12 drives the turntable 11 to rotate. The turntable 11 drives the grinding hole 14 to rotate between the processing silo 3 and the processing table 4. When the grinding hole 14 rotates to the slot 13 connected to the storage tank 7, the water glass sand in the slot 13 falls into the grinding hole 14 and a layer is laid in the grinding hole 14.
[0129] As the adjusting slide bar 30 rotates, the telescopic frame 32 drives the adjusting pulley 33 to rotate. The adjusting pulley 33 slides into the controlled grinding section within the coordinating spiral groove 24, where the coordinating spiral groove 24 becomes shallower. The adjusting pulley 33 pushes the telescopic frame 32 upward, and the telescopic frame 32 drives the adjusting slide bar 30 to rise into the high zone. The lower clamping plate 34 and the lower clamping groove 25 separate, and the upper clamping ring 31 enters the upper clamping groove 26. The central rotating shaft 12 and the turntable 11 stop rotating. The adjusting slide bar 30 begins to drive the power gear 20 to rotate. The power gear 20 drives the driven gears 23 meshing on both sides to rotate. The driven gears 23 drive the grinding rotating tube shaft 17 to rotate through the bushing 18. The grinding rotating tube shaft 17 drives the grinding disc 16 to rotate in the groove 1. 3. As the adjusting slide bar 30 rotates, the adjusting pulley 33 enters the controlled feeding section, coordinating the spiral chute 24 to deepen. The adjusting slide bar 30 moves down into the low zone, driving the central rotating shaft 12 and the turntable 11 to rotate. The grinding disc 16 stops rotating, and the grinding hole 14 containing water glass sand rotates to below the grinding disc 16. Then, the adjusting slide bar 30 enters the high zone again, and the rotating grinding disc 16 grinds the water glass sand in the grinding hole 14 to remove the surface sodium film. Then, the adjusting slide bar 30 enters the low zone, the turntable 11 rotates, and the grinding hole 14 containing water glass sand rotates to above the discharge hole 15. The water glass sand in the grinding hole 14 falls into the finished product silo 1, thus completing one process. This process is repeated continuously.
[0130] ② The driven gear 23 drives the grinding rotating tube shaft 17 to rotate via the bushing 18. The grinding rotating tube shaft 17 drives the grinding disc 16 and the connector 58 to rotate. The suction device is started, and the suction device creates a negative pressure in the grinding rotating tube shaft 17. The rotation of the connector 58 drives the variable slider 54, telescopic rod 55, and variable roller 56 in the variable slide groove 53 to rotate. The variable roller 56 slides in the variable spiral slide groove 52. Initially, the variable roller 56 is located in the transition section, and the bottom surface of the grinding disc 16 is flush with the bottom surface of the processing table 4. Subsequently... As the variable roller 56 slides into the lower extension section, the variable spiral groove 52 becomes deeper, the variable roller 56 moves downward, and the connector 58 and the grinding rotating tube shaft 17 also move downward. The grinding rotating tube shaft 17 pushes the grinding disc 16 downward into the grinding hole 14 to compress the water glass sand. At the same time, the grinding rotating tube shaft 17 approaches the magnetic block of the air exchange cylinder 47 and begins to interact with it. Then the variable roller 56 enters the grinding section, the depth of the variable spiral groove 52 no longer changes, and the height of the grinding disc 16 no longer changes. It only rotates to grind the water glass sand.
[0131] ③ After grinding for a period of time, the variable roller 56 enters the ventilation section, the depth of the variable spiral groove 52 becomes shallower, the variable roller 56 and the connector 58 rise, the grinding rotating tube shaft 17 also moves upward, the grinding rotating tube shaft 17 moves upward, the grinding disc 16 remains in place, the grinding rotating tube shaft 17 and the grinding disc 16 are misaligned, the lower opening of the ventilation hole 39 is exposed, the upper opening of the ventilation hole 39 connects with the docking hole 40, the air flowing in the grinding rotating tube shaft 17 through the ventilation hole 39 acts on the water glass sand in the grinding hole 14, and sucks out the dust ground on the surface of the water glass sand. During the movement of the grinding rotating tube shaft 17, the mounting ring 42 pulls the linkage rod 45, the linkage rod 45 changes from horizontal to inclined, and pulls the linkage slider 44 to slide in the linkage groove 43. When the linkage slider 44 moves to the end of the linkage groove 43, the grinding rotating tube shaft 17 drives the grinding disc 16 to move upward through the linkage rod 45, so that the grinding disc 16 retracts into the groove 13;
[0132] ④ At the same time, the upward movement of the grinding rotating tube shaft 17 will also drive the air exchange cylinder 47 to move upward synchronously through the magnetic block. The air exchange cylinder 47 moves upward and enters the grinding hole 14, exposing the air exchange hole 48 inside the grinding hole 14. The air inside the grinding hole 14 flows to the vent hole 39 to form a low-pressure area. The air exchange hole 48 then replenishes the grinding hole 14 with air to maintain pressure balance. In this way, air continuously flows from the finished product silo 1 into the grinding hole 14 and is then drawn out by the grinding rotating tube shaft 17 to form a passage.
[0133] Subsequently, the variable roller 56 enters the reset section, the variable roller 56 and the connector 58 move down, the grinding rotating tube shaft 17 and the grinding disc 16 move down, and the bottom surface of the grinding disc 16 is flush with the bottom surface of the processing table 4. This is repeated 3-7 times. When the grinding disc 16 retracts into the groove 13, the turntable 11 rotates to switch the position of the grinding hole 14.
Claims
1. A dry process for water glass sand regeneration grinding equipment, comprising a finished product silo (1), a base (2) arranged at the bottom of the finished product silo (1), a processing silo (3) arranged at the top of the finished product silo (1), a top plate (5) arranged at the top of the processing silo (3), and a feeding pipe (6) arranged at the top of the top plate (5), characterized in that: It also includes a dispersion grinding unit; The dispersion and grinding unit is set inside the processing silo (3) and is used to disperse and grind water glass sand. The dispersion grinding unit includes a processing table (4) inside the processing silo (3), a storage tank (7) on the top of the processing table (4), a turntable (11) at the bottom of the processing table (4), a central rotating shaft (12) on the top of the turntable (11), two sets of slots (13) at the bottom of the processing table (4), a grinding hole (14) at the bottom of the turntable (11), a discharge hole (15) at the bottom of the processing silo (3), a grinding disc (16) inside one set of slots (13), a grinding rotating tube shaft (17) on the top of the grinding disc (16), and a bushing (18) on the outside of the grinding rotating tube shaft (17). The processing table (4) is located between the processing silo (3) and the top plate (5). The upper opening of the storage trough (7) coincides with the lower opening of the top plate (5). The turntable (11) is attached to the inner bottom wall of the processing silo (3) and the bottom wall of the processing table (4) respectively. The grinding hole (14) penetrates the turntable (11), the discharge hole (15) penetrates the processing silo (3), a set of slots (13) are connected to the storage trough (7), and the grinding rotating tube shaft (17) is longitudinally slidably connected to the bushing (18). The dispersion grinding unit also includes a power component (9) and a grinding coordination component (10). The power component (9) is used to provide working power to the grinding disc (16); the grinding coordination component (10) is used to coordinate the movement of the turntable (11) and the grinding disc (16).
2. The dry regeneration and grinding equipment for water glass sand according to claim 1, characterized in that: The number of the grinding holes (14) is an integer multiple of three.
3. The dry regeneration and grinding equipment for water glass sand according to claim 2, characterized in that: The power assembly (9) includes a mounting slot (19) disposed on the top of the processing table (4), a power gear (20) and a driven gear (23) disposed inside the mounting slot (19), a power shaft (21) disposed on the top of the power gear (20), and a motor (22) disposed on the top of the power shaft (21). The mounting groove (19) is composed of three circular grooves with overlapping edges. The power gear (20) is located at the center of the mounting groove (19). The driven gears (23) are distributed on both sides of the mounting groove (19), and both driven gears (23) mesh with the power gear (20). The bushing (18) and the grinding rotating tube shaft (17) pass through the processing table (4) and the driven gears (23), and the bushing (18) is fixedly installed with the driven gears (23). The central rotating shaft (12) passes through the processing table (4) and is fixedly installed with the power gear (20) through the grinding coordination component (10). The motor (22) is fixedly installed on the top of the top plate (5).
4. The dry regeneration and grinding equipment for water glass sand according to claim 3, characterized in that: The grinding coordination component (10) includes a coordination spiral groove (24) disposed on the bottom wall of the central area of the mounting groove (19), a lower slot (25) disposed on the top of the central rotating shaft (12), an upper slot (26) disposed on the bottom of the power gear (20), an adjustment groove (27) disposed on the bottom of the power shaft (21), a push spring (28) disposed inside the adjustment groove (27), side slots (29) disposed on both sides of the power shaft (21), an adjustment slide rod (30) disposed on the bottom of the push spring (28), an upper retaining ring (31) disposed on the outside of the power shaft (21), a telescopic frame (32) disposed on the outside of the adjustment slide rod (30), an adjustment pulley (33) disposed on the lower end of the telescopic frame (32), and a lower retaining plate (34) disposed on the bottom of the adjustment slide rod (30). The coordinated spiral chute (24) is provided with three sections: A, B, and C, which are respectively the control transition section, the control grinding section, and the control feeding section. The control grinding section is set in a spiral shape that spreads from the inside out, and the depth is always the same. The control feeding section and the control transition section pass through the control grinding section to connect their ends. The depth of the control feeding section gradually increases from shallow to deep, and the depth of the control transition section gradually decreases from deep to shallow. The depths at the connection points of the three sections, namely the control grinding section, the control feeding section, and the control transition section, are the same. The power shaft (21) extends through to the bottom of the power gear (20), and the power gear (20) and the power shaft (21) are longitudinally slidably connected. The side slot (29) extends through to the adjusting slide groove (27), and the upper retaining ring (31) is slidably connected to the outside of the power shaft (21). The power shaft (21) and the adjusting slide rod (30) are fixedly connected, and the two sets of connection points are located in the side slot (29). The telescopic frame (32) is set as an inverted L-shape, and the telescopic frame (32) extends horizontally. The adjusting pulley (33) is slidably installed in the coordinating spiral slide groove (24).
5. The dry regeneration and grinding equipment for water glass sand according to claim 4, characterized in that: The diameter of the adjusting pulley (33) is greater than the width of the coordinating spiral groove (24).
6. The dry regeneration and grinding equipment for water glass sand according to claim 5, characterized in that: The processing silo (3) is also equipped with a cleaning unit for cleaning dust from water glass sand; The cleaning unit includes a ventilation component (35) and a linkage component (36), which use airflow to clean dust from water glass sand; The ventilation assembly (35) includes a ventilation hole (39) disposed inside the grinding disc (16), an exhaust ring groove (57) disposed at the opening of the ventilation hole (39), a docking hole (40) disposed outside the grinding rotating tube shaft (17), a connector (58) disposed at the top of the grinding rotating tube shaft (17), and an air pipe (41) disposed at the top of the connector (58). The ventilation hole (39) is C-shaped and both ends are located inside the grinding disc (16) near the grinding rotating tube shaft (17). A mesh cover is provided at the opening of the exhaust ring groove (57), and the exhaust ring groove (57) surrounds the outside of the grinding rotating tube shaft (17). The linkage assembly (36) includes a mounting ring (42) disposed on the outside of the grinding rotating tube shaft (17), a linkage groove (43) disposed on the top of the grinding disc (16), a linkage slider (44) disposed inside the linkage groove (43), and a linkage rod (45) disposed between the linkage slider (44) and the mounting ring (42). The linkage slider (44) is slidably connected in the linkage groove (43), and the two ends of the linkage rod (45) are rotatably connected to the linkage slider (44) and the mounting ring (42) respectively.
7. The dry regeneration and grinding equipment for water glass sand according to claim 6, characterized in that: The cleaning unit also includes an air exchange component (37) for maintaining smooth airflow between the ventilation component (35) and the linkage component (36); The ventilation assembly (37) includes a mounting base (46) disposed at the bottom of the processing silo (3), a ventilation cylinder (47) disposed inside the ventilation cylinder (47), a ventilation hole (48) disposed on the surface of the ventilation cylinder (47), an air inlet ring groove (49) disposed at the opening of the ventilation hole (48), a connecting rope (50) disposed between the ventilation cylinder (47) and the mounting base (46), and a ventilation connector (8) disposed on the outside of the finished product silo (1). The ventilation hole (48) extends into the ventilation cylinder (47), which extends through the processing silo (3) to the bottom of the grinding disc (16). Magnetic blocks are provided inside the ventilation cylinder (47) and the grinding rotating tube shaft (17). Barrier meshes are provided at the openings of the air inlet ring groove (49) and the ventilation cylinder (47).
8. The dry regeneration and grinding equipment for water glass sand according to claim 7, characterized in that: The cleaning unit also includes a variable component (38) for controlling the working status of the ventilation component (35), the linkage component (36), and the air exchange component (37); The variable component (38) includes a base (51) disposed on the top of the top plate (5), a variable spiral groove (52) disposed on the top of the base (51), a variable groove (53) disposed on the bottom of the connector (58), a variable slider (54) disposed inside the variable groove (53), a telescopic rod (55) disposed on the bottom of the variable slider (54), and a variable roller (56) disposed on the bottom of the telescopic rod (55). The variable spiral groove (52) is provided with five sections: D, E, F, G, and H, which are respectively the transition section, the lower extension section, the grinding section, the ventilation section, and the reset section. The lower extension section, the grinding section, and the ventilation drive are arranged in a spiral shape that diffuses from the inside to the outside. The transition section and the reset section connect their ends. The depth of the transition section and the grinding section is always the same. The depth of the lower extension section and the reset section gradually increases from shallow to deep, while the depth of the ventilation section gradually decreases from shallow to shallow. The variable roller (56) is slidably installed inside the variable spiral groove (52). The diameter of the adjusting pulley (33) is greater than the width of the coordinating spiral groove (24), and the thickness of the adjusting pulley (33) is less than the width of the coordinating spiral groove (24).
9. A dry regeneration process for water glass sand, employing the grinding equipment for dry regeneration of water glass sand as described in claim 8, characterized in that, Includes the following steps: Step 1: Material preparation: Crush the water glass sand to reduce the amount of lumps; Step 2, Cleaning: Rinse the water glass sand with running water to remove surface impurities and oil, then dry it for later use; Step 3: Screening and grading: The dried water glass sand is screened and graded to obtain the required particle size and distribution. Different grades of water glass sand are processed in batches. Step 4: Grinding treatment: The screened water glass sand is put into a grinding equipment for grinding treatment. The purpose of grinding is to remove the sodium oxide layer and other contaminants on the surface through friction, impact and other actions. Step 5, Dust Removal: Use vibration and airflow to remove the dust produced during the grinding of water glass sand.
10. The dry regeneration process for water glass sand according to claim 9, characterized in that: The grinding equipment is operated as follows: ①Put water glass sand into the storage tank (7), start the motor (22), the power shaft (21) and the adjusting slide rod (30) start to rotate, the initial lower clamping plate (34) and the lower clamping groove (25) cooperate, when the grinding hole (14) rotates to the groove (13) connected to the storage tank (7) below, a layer of water glass sand is laid in the grinding hole (14), then the upper clamping ring (31) cooperates with the upper clamping groove (26), the driven gear (23) drives the grinding disc (16) to rotate, then the adjusting slide rod (30) moves down again, the turntable (11) rotates, when the grinding hole (14) rotates to the groove (13) where the grinding disc (16) is set, the rotating grinding disc (16) grinds this layer of water glass sand, and repeats the above process; ② When the grinding disc (16) and the grinding rotating tube shaft (17) rotate, the connector (58) drives the variable roller (56) to slide in the variable spiral groove (52). The bottom slope of the variable spiral groove (52) controls the movement of the grinding rotating tube shaft (17). When the grinding hole (14) carries water glass sand to the bottom of the grinding disc (16), the grinding rotating tube shaft (17) pushes the grinding disc (16) down. The grinding disc (16) enters the grinding hole (14) to press the water glass sand and start the grinding work. ③ After grinding for a period of time, the grinding rotating tube shaft (17) is pulled upward, and the grinding rotating tube shaft (17) and the grinding disc (16) are misaligned. The lower opening of the vent hole (39) is exposed, and the upper opening of the vent hole (39) is connected to the docking hole (40). The air flowing inside the grinding rotating tube shaft (17) passes through the vent hole (39) and acts on the water glass sand in the grinding hole (14), sucking out the dust ground on the surface of the water glass sand. Then the grinding rotating tube shaft (17) is driven to move downward and reset. ④ During the upward movement of the grinding rotating tube shaft (17), the air exchange cylinder (47) is driven upward by magnetic force, so that the air exchange hole (48) is exposed in the grinding hole (14). The air in the grinding hole (14) flows to the vent hole (39), and the air exchange hole (48) replenishes the air in the grinding hole (14) to maintain pressure balance. After the grinding rotating tube shaft (17) is reset, the air exchange cylinder (47) is also reset.