Centrifugal spray drying apparatus with automatic material turning mechanism and method of implementing the same

Abstract

The application discloses a centrifugal spray drying device with an automatic material turning mechanism, and also discloses an implementation method of the centrifugal spray drying device with the automatic material turning mechanism, which comprises a centrifugal spray machine body and a material turning component, the material turning component is internally installed on the centrifugal spray machine body, four groups of semicircular material turning leaves are uniformly installed on the outer wall of a movable shaft, the four groups of semicircular material turning leaves are continuously rotated by a transmission motor, the falling raw materials are continuously turned, the contact time of the raw materials and hot air is prolonged, the drying efficiency is improved, the cooperation of a buffer connecting foot, a semicircular stop block, a connecting block, an arc-shaped driving block and an elastic buffer belt is buffered, the arc-shaped driving block impacts the semicircular stop block, thereby the disc body is vibrated up and down, the raw materials on the fine mesh are shaken, small lumps can be broken, the number of lumps needing repeated cleaning is reduced, and the elastic buffer belt can well buffer and protect the semicircular stop block when the semicircular stop block is continuously moved up and down, so that the collision caused by too violent shaking is prevented.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, specifically to a centrifugal spray drying device with an automatic material turning mechanism and its implementation method. Background Technology

[0002] Spray drying is the most widely used process in liquid processing and drying industries. It is best suited for producing powdered or granular solid products from solutions, emulsions, suspensions, and pastes of liquid raw materials. Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density, and particle shape of the finished product must meet precise standards. Centrifugal spray dryers are highly automated, easy to operate, and produce high-quality products. They are suitable for solutions, emulsions, suspensions, and even viscous liquids. Air passes through a filter and heater, entering the air distributor at the top of the centrifugal spray dryer. The hot air enters the dryer evenly in a spiral pattern. The liquid feed is pumped from the feed tank through a filter to the centrifugal atomizer at the top of the dryer, atomizing the liquid into extremely small droplets. The liquid feed and hot air come into contact in parallel flow, causing the moisture to evaporate rapidly. The product is dried into a finished product in a very short time, and then discharged from the bottom of the drying tower and the cyclone separator. The exhaust gas is discharged by a fan.

[0003] In existing centrifugal spray dryers, the raw materials are dried by falling under natural gravity and coming into contact with hot air. Due to the fast feeding speed and short contact time with hot air, the drying effect is not good. At the same time, some raw materials are prone to clumping due to incomplete drying and accumulate at the discharge point. The clumped raw materials cannot be crushed, which can easily cause blockage.

[0004] Therefore, we have introduced a centrifugal spray drying device with an automatic material turning mechanism and its implementation method. Summary of the Invention

[0005] The purpose of this invention is to provide a centrifugal spray drying device with an automatic material turning mechanism and its implementation method. Four sets of semi-circular turning blades are evenly installed on the outer wall of the movable shaft. A drive motor causes these four sets of semi-circular turning blades to rotate continuously, constantly turning the falling raw material, extending the contact time between the raw material and hot air, and improving drying efficiency. The upper end of the sieve disc is evenly provided with coarse sieve holes. A fine mesh is fixedly connected between the feeding ring and the inner wall of the disc. Larger clumps are screened out by the coarse sieve holes and cannot fall, continuing to dry inside. The fine mesh further screens out the raw material, effectively ensuring the quality of the output. Four sets of buffer connecting feet are fixedly connected to the upper edge of the disc, keeping the disc away from the buffer... A semi-circular stop block is fixedly connected to the center of one side of the connecting foot. An arc-shaped actuating block is fixedly connected to the connecting block. An elastic buffer belt is fixedly connected between each arc-shaped actuating block. When the semi-circular turning blade rotates, the arc-shaped actuating block hits the semi-circular stop block, causing the disc to vibrate up and down through the buffer connecting foot. This causes the raw material falling onto the upper part of the fine mesh to shake continuously, extending the drying time and breaking up smaller clumps. This avoids the need for repeated cleaning due to a large number of clumps. The elastic buffer belt can effectively buffer and protect the semi-circular stop block as it moves up and down, preventing excessive shaking and collisions. This solves the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a centrifugal spray drying device with an automatic material turning mechanism, comprising a centrifugal sprayer body and a material turning component. The material turning component is installed inside the centrifugal sprayer body. The centrifugal sprayer body includes a drying tower, a discharge hopper, a support frame, a drive motor, a maintenance window, a control box, a hot air outlet, a high-speed centrifugal atomizer, and a liquid inlet pipe. A discharge hopper is installed at the bottom of the drying tower. A support frame is fixedly connected to the outer wall of the drying tower near the bottom. A drive motor is placed on the side wall of the discharge hopper near the top. A maintenance window is provided on the outer wall of the drying tower. A control box is installed on one side of the maintenance window. A hot air outlet is fixedly connected to the outer wall of the drying tower near the top. A high-speed centrifugal atomizer is installed at the top of the drying tower. A liquid inlet pipe is fixedly connected to the upper end of the high-speed centrifugal atomizer.

[0007] The material turning component includes a shaking component and a turning component. The shaking component is fixedly connected to the inner wall of the drying tower, and the turning component is fixedly connected to the inner wall of the discharge hopper.

[0008] The material turning assembly includes a fixed ring, connecting holes, and a material turning unit. The fixed ring is welded to the inner wall of the discharge hopper. Two sets of connecting holes are symmetrically opened on the outer wall of the fixed ring, and the material turning unit is movably arranged between the inner walls of the connecting holes.

[0009] Furthermore, the hot air inlet is connected to the blower and heater to transmit hot air, and the liquid inlet pipe is connected to the mother liquor tank to transmit the mother liquor slurry.

[0010] Furthermore, the material shaking assembly includes a screen plate, coarse screen holes, and a material shaking disc. The screen plate is welded to the inner wall of the drying tower around its perimeter. Coarse screen holes are evenly arranged at the upper end of the screen plate, and a material shaking disc is installed at the bottom of the screen plate.

[0011] Furthermore, the shaking disc includes a disc body, a feeding ring, a fine mesh, and buffer connecting feet. The feeding ring is provided through the upper end of the disc body, and a fine mesh is fixedly connected between the feeding ring and the inner wall of the disc body. Four sets of buffer connecting feet are fixedly connected to the upper edge of the disc body.

[0012] Furthermore, a guide cone is fixedly connected to the center of the disc body near the buffer connecting foot, and a semi-circular stop is fixedly connected to the center of the disc body away from the buffer connecting foot.

[0013] Furthermore, the buffer connecting foot includes a base, a movable groove, a movable column, a limiting block, and a buffer spring. The upper end of the base has a movable groove, and a movable column is movably arranged between the inner walls of the movable groove. The top of the movable column is fixedly connected to the bottom of the screen plate, and the bottom of the movable column is fixedly connected to the limiting block. A buffer spring is fixedly connected between the bottom of the limiting block and the inner wall of the movable groove.

[0014] Furthermore, the material turning unit includes a movable shaft, semi-circular turning blades, and a transmission component. The movable shaft extends through the connecting hole to the outside of the discharge hopper and is connected to the output shaft of the drive motor. Four sets of semi-circular turning blades are evenly installed on the outer wall of the movable shaft, and the transmission component is fixedly connected to the outer wall of the semi-circular turning blades.

[0015] Furthermore, the transmission component includes a base block, a connecting block, an arc-shaped actuating block, and an elastic buffer belt. The upper end of the base block is fixedly connected to the connecting block, and the arc-shaped actuating block is fixedly connected to the connecting block. The positions of the arc-shaped actuating block and the semi-circular stop block are corresponding. An elastic buffer belt is fixedly connected between each arc-shaped actuating block.

[0016] Another technical solution proposed by the present invention: a method for implementing a centrifugal spray drying device with an automatic material turning mechanism, comprising the following steps:

[0017] S1: Hot air is transmitted into the drying tower through the hot air inlet via the blower and heater. The liquid inlet pipe transmits the mother liquor slurry from the mother liquor tank to the high-speed centrifugal atomizer for atomization and spraying through the water pump, so that the atomized raw material can fully contact the hot air for drying.

[0018] S2: The dried raw material falls to the top of the screen plate. Some of the raw material is screened through the coarse screen holes and falls to the top of the plate. Larger clumps are removed.

[0019] S3: The drive motor is started by the control box to drive the movable shaft and the semi-circular turning blades to rotate, thereby turning the dried raw materials that fall down, so that they can fully contact the hot air and improve the drying efficiency.

[0020] S4: As the semi-circular turning blades rotate, the arc-shaped actuating block strikes the semi-circular stop block, causing the disc to vibrate up and down through the buffer connecting foot, screening and crushing the fine material above the disc, which finally falls through the fine screen into the discharge hopper for discharge.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The present invention proposes a centrifugal spray drying device with an automatic material turning mechanism and its implementation method. A fixed ring is welded to the inner wall of the discharge hopper. Two sets of connecting holes are symmetrically opened on the outer wall of the fixed ring, and a material turning unit is movably arranged between the inner walls of the connecting holes. A movable shaft extends through the connecting holes to the outside of the discharge hopper and is connected to the output shaft of the drive motor. Four sets of semi-circular material turning blades are evenly installed on the outer wall of the movable shaft. The drive motor makes the four sets of semi-circular material turning blades rotate continuously, constantly turning the falling raw material, extending the contact time between the raw material and the hot air, improving the drying efficiency, and at the same time, the continuous turning can effectively prevent the raw material from accumulating, avoid blockage, and ensure the normal operation time.

[0023] 2. This invention proposes a centrifugal spray drying device with an automatic material turning mechanism and its implementation method. A maintenance window is provided on the outer wall of the drying tower. A sieve disc is welded to the inner wall of the drying tower around its perimeter. Coarse sieve holes are evenly distributed at the upper end of the sieve disc, and a shaking disc is installed at the bottom of the sieve disc. A feeding ring is perforated at the upper end of the disc body. A fine mesh is fixedly connected between the feeding ring and the inner wall of the disc body. The falling raw material exhibits some agglomeration, and the agglomerates vary in size. Larger agglomerates are screened out by the coarse sieve holes and cannot fall further, continuing to dry inside. The fine mesh further screens out the raw material. The combination of the coarse sieve holes and the fine mesh effectively ensures the quality of the output material, optimizes the output quality, reduces blockages caused by agglomeration, decreases equipment maintenance frequency, and lowers labor costs.

[0024] 3. The present invention proposes a centrifugal spray drying device with an automatic material turning mechanism and its implementation method. Four sets of buffer connecting feet are fixedly connected to the upper edge of the disc body. A semi-circular stop block is fixedly connected to the center of the disc body on the side away from the buffer connecting feet. A movable groove is opened at the upper end of the base. A movable column is movably arranged between the inner walls of the movable groove, and the top of the movable column is fixedly connected to the bottom of the sieve disc. A limit block is fixedly connected to the bottom of the movable column. A buffer spring is fixedly connected between the bottom of the limit block and the inner wall of the movable groove. A connecting block is fixedly connected to the upper end of the bottom block. A fixed connection is made to the connecting block. The curved agitator blocks are positioned corresponding to the semi-circular stop blocks. Each curved agitator block is fixedly connected to an elastic buffer belt. As the semi-circular turning blades rotate, the curved agitator blocks strike the semi-circular stop blocks, causing the disc to vibrate up and down through the buffer connecting feet. This causes the raw material falling onto the upper part of the fine mesh to shake continuously, extending the drying time and breaking up smaller clumps, thus avoiding the need for repeated cleaning due to a large number of clumps. The elastic buffer belts effectively buffer and protect the semi-circular stop blocks as they move up and down, preventing excessive shaking and collisions. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0026] Figure 2 This is a schematic diagram of the material-turning component structure of a centrifugal spray drying device with an automatic material-turning mechanism and its implementation method according to the present invention.

[0027] Figure 3 This is a schematic diagram of the material shaking component structure of a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0028] Figure 4 This is a schematic diagram of the top surface structure of the shaking disc in a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0029] Figure 5 This is a schematic diagram of the bottom structure of the shaking disc in a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0030] Figure 6 This is a schematic diagram of the buffer connection foot structure of a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0031] Figure 7 This is a schematic diagram of the material turning component structure of a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0032] Figure 8This is a schematic diagram of the material turning unit structure of a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0033] Figure 9 This is a schematic diagram of the side structure of the semi-circular turning blade of a centrifugal spray drying device with an automatic turning mechanism and its implementation method according to the present invention.

[0034] Figure 10 This is a schematic diagram of the transmission component structure of a centrifugal spray drying device with an automatic material turning mechanism and its implementation method according to the present invention.

[0035] In the diagram: 1. Centrifugal sprayer body; 11. Drying tower; 12. Discharge hopper; 13. Support frame; 14. Drive motor; 15. Maintenance window; 16. Control box; 17. Hot air inlet; 18. High-speed centrifugal atomizer; 19. Liquid inlet pipe; 2. Tilting component; 21. Shaking component; 211. Screen plate; 212. Coarse screen hole; 213. Shaking plate; 2131. Plate body; 21311. Guide cone; 21312. Semi-circular stop block; 2132. Discharge ring; 2133. Fine screen; 2 134. Buffer connecting foot; 21341. Base; 21342. Movable groove; 21343. Movable column; 21344. Limit block; 21345. Buffer spring; 22. Flipping assembly; 221. Fixing ring; 222. Connecting hole; 223. Flipping unit; 2231. Movable shaft; 2232. Semi-circular flipping blade; 2233. Transmission component; 22331. Bottom block; 22332. Connecting block; 22333. Arc-shaped actuating block; 22334. Elastic buffer belt. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-2A centrifugal spray drying device with an automatic material-turning mechanism includes a centrifugal sprayer body 1 and a material-turning component 2. The material-turning component 2 is installed inside the centrifugal sprayer body 1. The centrifugal sprayer body 1 includes a drying tower 11, a discharge hopper 12, a support frame 13, a drive motor 14, a maintenance window 15, a control box 16, a hot air outlet 17, a high-speed centrifugal atomizer 18, and a liquid inlet pipe 19. The discharge hopper 12 is installed at the bottom of the drying tower 11. The support frame 13 is fixedly connected to the outer wall of the drying tower 11 near the bottom. A drive motor 14 is placed on the side wall near the top. A maintenance window 15 is provided on the outer wall of the drying tower 11. A control box 16 is installed on one side of the maintenance window 15. A hot air outlet 17 is fixedly connected to the outer wall of the drying tower 11 near the top. The hot air outlet 17 is externally connected to the blower and heater. Hot air is transmitted through the hot air outlet 17. A high-speed centrifugal atomizer 18 is installed at the top of the drying tower 11. An inlet pipe 19 is fixedly connected to the upper end of the high-speed centrifugal atomizer 18. The inlet pipe 19 is externally connected to the mother liquor tank. Mother liquor slurry is transmitted through the inlet pipe 19.

[0038] The material turning component 2 includes a shaking component 21 and a turning component 22. The shaking component 21 is fixedly connected to the inner wall of the drying tower 11, and the turning component 22 is fixedly connected to the inner wall of the discharge hopper 12.

[0039] Please see Figure 3-5 A centrifugal spray drying device with an automatic material turning mechanism includes a material shaking assembly 21 comprising a sieve disc 211, coarse sieve holes 212, and a shaking disc 213. The sieve disc 211 is welded to the inner wall of the drying tower 11. The upper end of the sieve disc 211 is uniformly provided with coarse sieve holes 212. The bottom of the sieve disc 211 is equipped with a shaking disc 213, which includes a disc body 2131, a feeding ring 2132, a fine mesh 2133, and a buffer connecting foot 2134. The feeding ring 2132 is provided through the upper end of the disc body 2131. The fine mesh 2133 is fixedly connected between the feeding ring 2132 and the inner wall of the disc body 2131. The falling raw material has some agglomeration, and the size of the agglomerates varies. Larger lumps are difficult to remove by the coarse screen 212 and continue to dry inside. The fine screen 2133 can further remove the raw material. The coarse screen 212 and the fine screen 2133 work together to ensure the quality of the output. While optimizing the output quality, it also reduces the occurrence of blockage due to lumps, reduces the number of equipment maintenance, and reduces labor costs. Four sets of buffer connecting feet 2134 are fixedly connected to the upper edge of the disc 2131. A guide cone 21311 is fixedly connected to the center of the side of the disc 2131 near the buffer connecting feet 2134. A semi-circular stop block 21312 is fixedly connected to the center of the side of the disc 2131 away from the buffer connecting feet 2134.

[0040] Please see Figure 6-7A centrifugal spray drying device with an automatic material turning mechanism includes a buffer connecting foot 2134 comprising a base 21341, a movable groove 21342, a movable column 21343, a limiting block 21344, and a buffer spring 21345. The upper end of the base 21341 has a movable groove 21342. A movable column 21343 is movably arranged within the inner wall of the movable groove 21342, and the top end of the movable column 21343 is fixedly connected to the bottom of the sieve plate 211. The bottom of 343 is fixedly connected to a limiting block 21344, and a buffer spring 21345 is fixedly connected between the bottom of the limiting block 21344 and the inner wall of the movable groove 21342. The material turning assembly 22 includes a fixing ring 221, a connecting hole 222 and a material turning unit 223. The fixing ring 221 is welded to the inner wall of the discharge hopper 12. Two sets of connecting holes 222 are symmetrically opened on the outer wall of the fixing ring 221, and the material turning unit 223 is movably arranged between the inner walls of the connecting holes 222.

[0041] Please see Figure 8-9 A centrifugal spray drying device with an automatic material turning mechanism is disclosed. The material turning unit 223 includes a movable shaft 2231, semi-circular turning blades 2232, and a transmission component 2233. The movable shaft 2231 extends through the connecting hole 222 to the outside of the discharge hopper 12 and is connected to the output shaft of the drive motor 14. Four sets of semi-circular turning blades 2232 are evenly installed on the outer wall of the movable shaft 2231. The drive motor 14 causes the four sets of semi-circular turning blades 2232 to rotate continuously, turning the falling raw material continuously, extending the contact time between the raw material and the hot air, improving the drying efficiency, and at the same time, the continuous turning can effectively prevent the raw material from accumulating, avoid blockage, and ensure the normal operation time. The transmission component 2233 is fixedly connected to the outer wall of the semi-circular turning blades 2232.

[0042] Please see Figure 10 A centrifugal spray drying device with an automatic material turning mechanism includes a transmission component 2233 comprising a base block 22331, a connecting block 22332, an arc-shaped actuating block 22333, and an elastic buffer belt 22334. The upper end of the base block 22331 is fixedly connected to the connecting block 22332, and the arc-shaped actuating block 22333 is fixedly connected to the connecting block 22332. The arc-shaped actuating block 22333 corresponds to the position of the semi-circular stop block 21312. Elastic buffer belts 22334 are fixedly connected between each arc-shaped actuating block 22333. As the turning blade 2232 rotates, the arc-shaped agitator 22333 strikes the semi-circular stop 21312, causing the disc 2131 to vibrate up and down through the buffer connecting foot 2134. This causes the raw material falling onto the fine mesh 2133 to shake continuously, extending the drying time and breaking up smaller clumps, thus avoiding the need for repeated cleaning due to a large number of clumps. The elastic buffer belt 22334 provides good buffer protection for the semi-circular stop 21312 as it moves up and down continuously, preventing excessive shaking and collisions.

[0043] To better illustrate this, this embodiment presents a method for implementing a centrifugal spray drying device with an automatic material turning mechanism, comprising the following steps:

[0044] Step 1: Hot air is transmitted into the drying tower 11 through the hot air inlet 17 via the blower and heater. The liquid inlet pipe 19 transmits the mother liquor slurry from the mother liquor tank to the high-speed centrifugal atomizer 18 for atomization and spraying, so that the atomized raw material comes into full contact with the hot air for drying.

[0045] Step 2: The dried raw material falls to the upper end of the sieve plate 211, and some of the raw material is screened through the coarse sieve hole 212 to fall above the plate body 2131, and larger clumps are removed.

[0046] Step 3: The drive motor 14 is started by the control box 16 to drive the movable shaft 2231 and the semi-circular turning blade 2232 to rotate, thereby turning the dried raw material that falls down, so that it can fully contact the hot air and improve the drying efficiency.

[0047] Step 4: As the semi-circular turning blade 2232 rotates, the arc-shaped agitator block 22333 strikes the semi-circular stop block 21312, causing the disc body 2131 to vibrate up and down through the buffer connecting foot 2134, screening and crushing the fine material above the disc body 2131, and finally dropping it through the fine screen 2133 into the discharge hopper 12 for discharge.

[0048] In summary, this invention proposes a centrifugal spray drying device with an automatic material-turning mechanism and its implementation method. A fixing ring 221 is welded to the inner wall of the discharge hopper 12. Two sets of connecting holes 222 are symmetrically opened on the outer wall of the fixing ring 221, and a material-turning unit 223 is movably arranged between the inner walls of the connecting holes 222. A movable shaft 2231 extends through the connecting holes 222 to the outside of the discharge hopper 12 and is connected to the output shaft of the drive motor 14. Four sets of semi-circular material-turning blades 2232 are evenly installed on the outer wall of the movable shaft 2231. The drive motor 14 causes the four sets of semi-circular material-turning blades 2232 to rotate continuously, constantly turning over the falling raw material, extending the contact time between the raw material and hot air, improving drying efficiency, and simultaneously preventing material accumulation and blockage, ensuring the duration of normal operation. The drying tower... A maintenance window 15 is provided on the outer wall of the drying tower 11. The screen plate 211 is welded to the inner wall of the drying tower 11 around its perimeter. The upper end of the screen plate 211 is evenly provided with coarse screen holes 212. The bottom of the screen plate 211 is equipped with a shaking plate 213. The upper end of the plate body 2131 is provided with a feeding ring 2132. A fine screen 2133 is fixedly connected between the feeding ring 2132 and the inner wall of the plate body 2131. The falling raw material has some clumps, and the clumps are of different sizes. The larger clumps are screened out by the coarse screen holes 212 and are difficult to fall, so they continue to dry inside. The fine screen 2133 can further screen out the raw material. The coarse screen holes 212 and the fine screen 2133 work together to ensure the quality of the output. While optimizing the output quality, it also reduces the occurrence of blockage due to clumps, reduces the number of equipment maintenance, and reduces labor costs.Four sets of buffer connecting feet 2134 are fixedly connected to the upper edge of the disc body 2131. A semi-circular stop block 21312 is fixedly connected to the center of the side of the disc body 2131 away from the buffer connecting feet 2134. A movable groove 21342 is opened at the upper end of the base 21341. A movable column 21343 is movably arranged in the inner wall of the movable groove 21342. The top of the movable column 21343 is fixedly connected to the bottom of the sieve disc 211. A limit block 21344 is fixedly connected to the bottom of the movable column 21343. A buffer spring 21345 is fixedly connected between the bottom of the limit block 21344 and the inner wall of the movable groove 21342. A connecting block 22332 is fixedly connected to the upper end of the bottom block 22331. An arc-shaped lever is fixedly connected to the connecting block 22332. The moving block 22333, and the arc-shaped actuating block 22333 corresponding to the semi-circular stop block 21312, are all fixedly connected to each arc-shaped actuating block 22333 by an elastic buffer belt 22334. As the semi-circular turning blade 2232 rotates, the arc-shaped actuating blocks 22333 strike the semi-circular stop block 21312, causing the disc body 2131 to vibrate up and down through the buffer connecting foot 2134. This causes the raw material falling onto the fine mesh 2133 to shake continuously, extending the drying time and breaking up smaller clumps, preventing repeated cleaning due to a large number of clumps. The elastic buffer belt 22334 effectively buffers and protects the semi-circular stop block 21312 as it moves up and down, preventing excessive shaking and collisions.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal spray drying device with an automatic material turning mechanism, comprising a centrifugal sprayer body (1) and a material turning component (2), wherein the material turning component (2) is installed inside the centrifugal sprayer body (1), characterized in that: The centrifugal sprayer body (1) includes a drying tower (11), a discharge hopper (12), a support frame (13), a drive motor (14), a maintenance window (15), a control box (16), a hot air outlet (17), a high-speed centrifugal atomizer (18), and an inlet pipe (19). The discharge hopper (12) is installed at the bottom of the drying tower (11). The support frame (13) is fixedly connected to the outer wall of the drying tower (11) near the bottom. The drive motor (14) is placed on the side wall of the discharge hopper (12) near the top. The maintenance window (15) is provided on the outer wall of the drying tower (11). The control box (16) is installed on one side of the maintenance window (15). The hot air outlet (17) is fixedly connected to the outer wall of the drying tower (11) near the top. The high-speed centrifugal atomizer (18) is installed at the top of the drying tower (11). The inlet pipe (19) is fixedly connected to the upper end of the high-speed centrifugal atomizer (18). The material turning component (2) includes a shaking component (21) and a turning component (22). The shaking component (21) is fixedly connected to the inner wall of the drying tower (11), and the turning component (22) is fixedly connected to the inner wall of the discharge hopper (12). The material turning assembly (22) includes a fixing ring (221), connecting holes (222) and a material turning unit (223). The fixing ring (221) is welded to the inner wall of the discharge hopper (12). Two sets of connecting holes (222) are symmetrically opened on the outer wall of the fixing ring (221), and the material turning unit (223) is movably arranged between the inner walls of the connecting holes (222). The shaking assembly (21) includes a screen plate (211), coarse screen holes (212) and a shaking disc (213). The screen plate (211) is welded to the inner wall of the drying tower (11) around its perimeter. Coarse screen holes (212) are evenly arranged at the upper end of the screen plate (211), and a shaking disc (213) is installed at the bottom of the screen plate (211). The shaking disc (213) includes a disc body (2131), a feeding ring (2132), a fine mesh (2133), and buffer connecting feet (2134). The feeding ring (2132) is provided through the upper end of the disc body (2131). The fine mesh (2133) is fixedly connected between the feeding ring (2132) and the inner wall of the disc body (2131). Four sets of buffer connecting feet (2134) are fixedly connected to the edge of the upper end of the disc body (2131). A guide cone (21311) is fixedly connected to the center of the side of the disc (2131) near the buffer connecting foot (2134), and a semi-circular stop block (21312) is fixedly connected to the center of the side of the disc (2131) away from the buffer connecting foot (2134). The buffer connecting foot (2134) includes a base (21341), a movable groove (21342), a movable column (21343), a limiting block (21344), and a buffer spring (21345). The upper end of the base (21341) is provided with a movable groove (21342). A movable column (21343) is movably arranged between the inner walls of the movable groove (21342). The top end of the movable column (21343) is fixedly connected to the bottom of the screen plate (211). The bottom of the movable column (21343) is fixedly connected to the limiting block (21344). A buffer spring (21345) is fixedly connected between the bottom of the limiting block (21344) and the inner wall of the movable groove (21342). The material turning unit (223) includes a movable shaft (2231), a semi-circular turning blade (2232) and a transmission component (2233). The movable shaft (2231) extends through the connecting hole (222) to the outside of the discharge hopper (12) and is connected to the output shaft of the drive motor (14). Four sets of semi-circular turning blades (2232) are evenly installed on the outer wall of the movable shaft (2231). The transmission component (2233) is fixedly connected to the outer wall of the semi-circular turning blades (2232). The transmission component (2233) includes a base block (22331), a connecting block (22332), an arc-shaped actuating block (22333), and an elastic buffer belt (22334). The upper end of the base block (22331) is fixedly connected to the connecting block (22332), and the connecting block (22332) is fixedly connected to the arc-shaped actuating block (22333). The arc-shaped actuating block (22333) is positioned corresponding to the semi-circular stop block (21312), and the elastic buffer belt (22334) is fixedly connected between each arc-shaped actuating block (22333).

2. The centrifugal spray drying device with an automatic material turning mechanism as described in claim 1, characterized in that: The hot air inlet (17) is connected to the blower and heater, and hot air is transmitted through the hot air inlet (17). The liquid inlet pipe (19) is connected to the mother liquor tank, and the mother liquor slurry is transmitted through the liquid inlet pipe (19).

3. A method for implementing a centrifugal spray drying apparatus with an automatic material turning mechanism as described in any one of claims 1-2, comprising the following steps: S1: Hot air inlet (17) transmits hot air into the interior of drying tower (11) through blower and heater. Liquid inlet pipe (19) transmits the mother liquor slurry from mother liquor tank to high-speed centrifugal atomizer (18) through water pump for atomization spraying, so that the atomized raw material is fully in contact with hot air for drying. S2: The dried raw material falls to the top of the sieve plate (211), and some of the raw material is screened through the coarse sieve hole (212) and falls to the top of the plate body (2131), and larger clumps are screened out. S3: The drive motor (14) is started by the control box (16) to drive the movable shaft (2231) and the semi-circular turning blade (2232) to rotate, thereby turning the raw material that falls after drying, so that it can fully contact the hot air and improve the drying efficiency. S4: While the semi-circular turning blade (2232) rotates, the arc-shaped agitator (22333) strikes the semi-circular stop block (21312), causing the disc (2131) to vibrate up and down through the buffer connecting foot (2134), which screens and crushes the fine material above the disc (2131), and finally drops through the fine screen (2133) to the discharge hopper (12) for discharge.

Images