Tricalcium phosphate wet granulation device
By designing a tricalcium phosphate wet granulation device including feeding machine, rotary extrusion granulator, disk granulator, vibrating screen and disk dryer, the problem of dust generated by traditional dry granulation is solved, and an efficient and dust-free granulation process is achieved, and the environment and health are protected.
Patent Information
- Application Number
- CN202421305989.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-07
AI Technical Summary
Traditional dry granulation will produce dust during the production process of tricalcium phosphate, pollute the environment and threaten the health of staff, leading to respiratory diseases.
A tricalcium phosphate wet granulation device including a feeding machine, a rotary extrusion granulator, a disk granulator, a vibrating screen and a disk dryer is designed. The device crushes wet material by cutting blades and extruding blades, the screen cylinder becomes thin strips, the disc granulator forms spherical particles, the vibrating screen is screened, and the disc dryer is dried to avoid dust generation.
It improves the granulation efficiency of tricalcium phosphate, avoids the generation of dust during granulation, and protects the environment and the health of staff.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of granulation, in particular to a tricalcium phosphate wet granulation device. Background Art
[0002] Calcium phosphate is an inorganic compound, a white crystal or amorphous powder, slightly soluble in water, easily soluble in dilute hydrochloric acid and nitric acid, insoluble in ethanol, acetone and ether, commonly used as an anticaking agent, acidity regulator, nutritional supplement, flavoring agent, stabilizer, moisture retention agent, and used as an antacid in medicine. Tricalcium phosphate needs granulation during the production process, and traditional dry granulation will produce dust, which will not only pollute the environment, but also threaten the health of the staff. Therefore, it is necessary to inhale for a long time to cause damage to the respiratory system and cause respiratory diseases. Therefore, how to provide a wet granulation device with high granulation efficiency is a problem that those skilled in the art need to solve. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a tricalcium phosphate wet granulation device is provided, which has high granulation efficiency and good effect and can effectively solve the dust problem in the granulation process.
[0004] In order to solve the above technical problems, the technical solution of the utility model is:
[0005] A tricalcium phosphate wet granulation device comprises a feeder, a rotary extrusion granulator, a disc granulator and a vibrating screen, wherein the fine material outlet of the vibrating screen is connected to the feed inlet of the feeder, and the large particle outlet of the vibrating screen is connected to a disc dryer; a stirring shaft in the rotary extrusion granulator is provided with a cutting blade and an extrusion blade from top to bottom, and the disc granulator is also provided with a scraper, which is arranged on a frame and abuts against the inner wall of a rotating disc of the disc granulator.
[0006] Preferably, a material guide groove is provided below the screen cylinder of the rotary extrusion granulator, and one end of the material guide groove extends above the rotating disk of the disc granulator.
[0007] Preferably, a feed hopper is provided at the feed inlet of the vibrating screen, and the lowest end of the rotating disk extends above the feed hopper.
[0008] Preferably, the vibrating screen and the disc dryer are also connected via a silo.
[0009] Preferably, the disc dryer is provided with a first baking tray and a second baking tray alternately from top to bottom, the diameter of the first baking tray is smaller than the diameter of the second baking tray, the disc dryer is also provided with a rotating shaft, the rotating shaft is rotatably connected to the first baking tray, the second baking tray is sleeved on the outside of the rotating shaft, and a discharge port is formed with the gap between the second baking tray and the rotating shaft, a plurality of first rake arms and a second rake arm are provided on the rotating shaft, the first rake arm is provided with a plurality of outward rake teeth abutting against the first baking tray, and the second rake arm is provided with a plurality of inward rake teeth abutting against the second baking tray; the first baking tray and the second baking tray are both connected to the steam pipe and the condensate water pipe.
[0010] Preferably, the disc dryer is further provided with a steam buffer plate connected to the steam pipe and a condensate buffer plate connected to the condensate pipe, and the jackets of the first baking tray and the second baking tray are connected to the steam buffer plate and the condensate buffer plate respectively through pipes.
[0011] Preferably, a porous diverter plate is provided at the air inlet of the jacket of the first baking tray and the second baking tray.
[0012] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0013] The utility model provides a tricalcium phosphate wet granulation device, including a feeder, a rotary extrusion granulator, a disc granulator, and a vibrating screen. The fine material outlet of the vibrating screen is connected to the feed port of the feeder, and the large particle outlet of the vibrating screen is connected to a disc dryer; the stirring shaft in the rotary extrusion granulator is provided with cutting blades and extrusion blades from top to bottom. Through the above arrangement, the tricalcium phosphate wet material is crushed under the action of the cutting blade, and the crushed wet material is squeezed by the extrusion blade and becomes thin strips through the screen cylinder. After falling into the disc granulator, the extruded particles are turned into spheres through rotation, and some are crushed into powder. Then the material is sent to the vibrating screen, and the granular powder is sent to the disc dryer for drying after being screened by the vibrating screen. The fine powder is drawn back to the rotary extrusion granulator by the feeder for re-granulation, which greatly improves the granulation efficiency and avoids the generation of dust during the granulation process.
[0014] The disc granulator of the device is also provided with a scraper, which is arranged on the frame and abuts against the inner wall of the rotating disc of the disc granulator. The scraper can scrape off the material adhering to the inner wall of the rotating disc and can push the material to improve the granulation efficiency.
[0015] The disc dryer of the device realizes continuous drying of materials through the cooperation of the first drying disc, the second drying disc, the first rake arm, the outward rake teeth, the second rake arm, the inward rake arm and the rotating shaft. In addition, a porous diverter plate is provided at the air inlet of the jacket of the first drying disc and the second drying disc, which greatly improves the heat exchange efficiency of the disc dryer and improves the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0018] Figure 2 is a top view of a rotary extrusion granulator;
[0019] Figure 3 It is a structural schematic diagram of a rotating disk;
[0020] Figure 4 1 is a schematic diagram of the structure of the first baking tray;
[0021] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;
[0022] In the figure, 1, feeder; 2, rotary extrusion granulator; 3, disc granulator; 4, vibrating screen; 5, silo; 6, disc dryer; 7, cutting blade; 8, extrusion blade; 9, guide trough; 10, rotating disc; 11, scraper; 12, frame; 13, feed hopper; 14, first drying disc; 15, second drying disc; 16, steam pipe; 17, condensate pipe; 18, steam buffer plate; 19, condensate buffer plate; 20, rotating shaft; 21, discharge port; 22, first rake arm; 23, second rake arm; 24, outward rake teeth; 25, inward rake teeth; 26, porous diverter plate. DETAILED DESCRIPTION
[0023] The utility model discloses a tricalcium phosphate wet granulation device to solve the problem pointed out in the background technology that tricalcium phosphate generates dust and pollutes the environment during granulation.
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1
[0026] like Figure 1-5As shown, a tricalcium phosphate wet granulation device includes a feeder 1, a rotary extrusion granulator 2, a disc granulator 3, a vibrating screen 4, a silo 5 and a disc dryer 6.
[0027] like Figure 1 , Figure 2 As shown, the stirring shaft in the rotary extrusion granulator 2 is provided with a cutting blade 7 and an extrusion blade 8 from top to bottom, and a material guide groove 9 is provided below the screen cylinder of the rotary extrusion granulator 2, and one end of the material guide groove 9 extends above the rotating disk 10 of the disc granulator 3. During wet granulation, the tricalcium phosphate wet material enters the rotary extrusion granulator 2 through the feeder 1, and the wet material is crushed under the cutting of the cutting blade 7. The crushed wet material is squeezed by the extrusion blade 8, passes through the screen cylinder and becomes a thin strip, and falls into the rotating disk 10 of the disc granulator 3 through the material guide groove 9.
[0028] like Figure 1 and Figure 3 As shown, a scraper 11 is further provided in the disc granulator 3. The scraper 11 is arranged on the frame 12 and abuts against the inner wall of the rotating disc 10. During the rotation of the rotating disc 10, the scraper 11 can not only prevent the tricalcium phosphate wet material from adhering to the bottom of the rotating disc 10, but also, under the action of the rotating disc 10, the scraper 11 squeezes and pushes the wet material, so that the wet material forms granules on the disc, thereby improving the granulation efficiency.
[0029] like Figure 1 As shown, a feed hopper 13 is provided at the feed port of the vibrating screen 4, the lowest end of the rotating disk 10 extends above the feed hopper 13, the fine material outlet of the vibrating screen 4 is connected to the feed port of the feeder 1, and the large particle outlet of the vibrating screen 4 is connected to the disc dryer 6. The material after re-granulation by the disc granulator enters the vibrating screen 4 for screening, the fine material enters the rotary extrusion granulator 2 through the feeder 1 for re-granulation, and the qualified granular material enters the silo 5 and enters the disc dryer 6 for drying, which not only improves the granulation efficiency of tricalcium phosphate, but also prevents the generation of dust during the granulation process.
[0030] like Figure 1 , Figure 4 and Figure 5As shown, the disc dryer 6 is provided with a first baking tray 14 and a second baking tray 15 alternately arranged from top to bottom, the diameter of the first baking tray 14 is smaller than the diameter of the second baking tray 15, and the first baking tray 14 and the second baking tray 15 are both connected to the steam pipe 16 and the condensate pipe 17; the disc dryer 6 is also provided with a steam buffer plate 18 connected to the steam pipe 16 and a condensate buffer plate 19 connected to the condensate pipe 17, and the jackets of the first baking tray 14 and the second baking tray 15 are respectively connected to the steam buffer plate 18 and the condensate buffer plate 19 through pipes; steam is introduced into the jackets of the first baking tray 14 and the second baking tray 15 through the steam pipe 16 and the steam buffer plate 18, so as to dry the material, and the condensed cooling water is discharged through the condensate buffer plate 19 and the condensate pipe 17.
[0031] Furthermore, in this embodiment, a rotating shaft 20 is also provided in the disc dryer 6, and the rotating shaft 20 is rotatably connected to the first baking tray 14. The second baking tray 15 is sleeved on the outside of the rotating shaft 20, and the gap between the second baking tray and the rotating shaft 20 forms a discharge port 21. The rotating shaft 20 is provided with a plurality of first rake arms 22 and second rake arms 23. The first rake arms 22 are provided with a plurality of outward rake teeth 24 that abut against the first baking tray 14, and the second rake arms 23 are provided with a plurality of inward rake teeth 25 that abut against the second baking tray 15. During the drying process, the reduction motor at the bottom of the disc dryer 6 drives the rotating shaft 20 to rotate, and then drives the first rake arm 22, the second rake arm 23, the outward rake teeth and the inward rake teeth 25 to rotate, so as to turn the material over, and the outward rake teeth push the material, so that the material on the first drying tray 14 falls onto the second drying tray 15, and the material falls onto the first drying tray 14 from the discharge port 21 under the push of the inward rake teeth 25. In this way, the material moves downward from the top in sequence, realizing continuous drying of the material.
[0032] Furthermore, in this embodiment, a porous diverter plate 26 is provided at the air inlet of the jacket of the first baking tray 14 and the second baking tray 15, so that the steam enters the jacket evenly, thereby improving the drying efficiency.
[0033] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A tricalcium phosphate wet granulation device, characterized in that: It includes a feeder, a rotary extrusion granulator, a disc granulator, and a vibrating screen. The fine material outlet of the vibrating screen is connected to the feed port of the feeder, and the large particle outlet of the vibrating screen is connected to a disc dryer. The stirring shaft in the rotary extrusion granulator is provided with cutting blades and extrusion blades from top to bottom, and the disc granulator is also provided with a scraper, which is arranged on the frame and abuts against the inner wall of the rotating disc of the disc granulator.
2. A tricalcium phosphate wet granulation device according to claim 1, characterized in that: A material guide groove is arranged below the screen cylinder of the rotary extrusion granulator, and one end of the material guide groove extends above the rotating disk of the disc granulator.
3. A tricalcium phosphate wet granulation device according to claim 1, characterized in that: A feed hopper is provided at the feed inlet of the vibrating screen, and the lowest end of the rotating disk extends above the feed hopper.
4. A tricalcium phosphate wet granulation device according to claim 1, characterized in that: The vibration screen and the disc dryer are also connected through a silo.
5. A tricalcium phosphate wet granulation device according to claim 1, characterized in that: The disc dryer is provided with a first baking tray and a second baking tray alternately arranged from top to bottom, the diameter of the first baking tray is smaller than the diameter of the second baking tray, the disc dryer is also provided with a rotating shaft, the rotating shaft is rotatably connected to the first baking tray, the second baking tray is sleeved on the outer side of the rotating shaft, and a discharge port is formed with the gap between the second baking tray and the rotating shaft, a plurality of first rake arms and a second rake arm are provided on the rotating shaft, the first rake arm is provided with a plurality of outward rake teeth abutting against the first baking tray, and the second rake arm is provided with a plurality of inward rake teeth abutting against the second baking tray; the first baking tray and the second baking tray are both connected to the steam pipe and the condensate water pipe.
6. A tricalcium phosphate wet granulation device according to claim 5, characterized in that: The disc dryer is also provided with a steam buffer plate connected to the steam pipeline and a condensate buffer plate connected to the condensate pipeline. The jackets of the first baking tray and the second baking tray are connected to the steam buffer plate and the condensate buffer plate respectively through pipelines.
7. A tricalcium phosphate wet granulation device according to claim 5, characterized in that: A porous diverter plate is provided at the air inlet of the jacket of the first baking tray and the second baking tray.