TWI291011B - Spray-dryer - Google Patents

Abstract

To provide a spray-dryer in which the variation in particle size of resultant granules is made small and the incorporation of impurities is effectively prevented. This spray-dryer has a slurry discharge part 5a for discharging slurry, holding parts 6, 7a for holding the slurry discharge part 5a and a rotary disk 3 for radially spraying the slurry discharged from the discharge part 5a. An upper plate 33 is formed on the rotary disk 3 and has an inside diameter larger than the outside diameter of the holding parts 6, 7a.

Description

1291011 — IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to the introduction of a dry wood garment with a spray and a dry spray on the mouth of the mash. The spray drying apparatus which makes the particle size of the granules owed to the granules and which can effectively prevent impurities from being mixed is a prior art. The raw material is used in a device which is instantaneously dried by a spray portion such as a nozzle or a rotating disk. In the second product, the spray drying device is used to obtain granules in medicines, ceramics, and the like. In the spray drying device, the ^ ^ 馁 馁 + 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 主要 : : It is suitable for the use of rotating discs. "Particles, thus" in the spray section, the rotating disk generally has a round top. The lower plate, the droplets of the droplets are formed by the use of a rotating shaft. In addition, on the rotating disk: the upper needle The slurry discharge portion of the upper plate is formed and the slurry discharge is maintained: = Pulp No. 10-Π8536). Hold. 卩 (for example, the special opening @ 可疋 has a rotating disk as in the special opening 1 0-1 1 8536 The spray drying device, the ancestors of the Hu A report d will be the time when the fog is dry, due to the rebound of the cluster or the effect of dry hot air, it is transferred to the paste discharge section. Qiu Yi moved j on the board and kept

Adhesion of the raw material occurs in the gap of the holding portion of 2030-7267-PF 1291011 (scaling). The raw material adheres to the upper plate and the LA ^ , A gap 'the present attachment, t ' becomes a JSJ-sized attachment due to the accumulation, and as a result, the particle size is not obtained, and the accumulation is high. The rotation caused by the rotation between the upper plate and the holding portion is caused by the friction caused by the attached object, and the wear material U # Μ, θ has the product The question of adverse effects: the consumables are miscellaneous... The product is also [invention] The clock is in the above-mentioned reality, the Bengbu, the Yue Department has a kind of Hefu dryness set to prevent the raw materials from attaching to the Zhongxu, the rotation I The gap between the plate and the holding slurry discharge portion is maintained, and the variation of the particle size of the particles of Weisheng 丨 丨 丨 变 is small, and rain can effectively prevent impurities from entering. In order to achieve the above object, the spray drying device of the present invention is a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ And rotating the disk to spray the slurry discharged from the slurry discharge portion into a radiation s /, characterized in that an upper plate is formed on the rotating disk; and the upper plate above the rotating disk has a larger outer diameter than the holding portion The inner diameter 0 drying device is a spray drying | slurry; the holding portion holds the material discharged from the slurry discharge portion of the material: an upper plate is formed on the rotating disk, and is set as a walking shaft from the rotating disk or The nozzle of the present invention is configured to include: a slurry discharge portion that discharges the slurry discharge portion; and a rotating disk that sprays the self-slurry into a radiation flaw; wherein the upper plate of the rotating disk and the holding portion are not aligned Overlapping.

2030-7267-PF Ϊ291011 In the present invention, by making the outer diameter of the upper plate of the rotating disk large or arranging the upper plate of the rotating disk and the holding portion: the direction of the rotating axis of the rotating disk is not visible The overlap can effectively prevent the original: the gap between the upper plate and the holding portion of the rotating disk. If it is possible to prevent the raw material from adhering to the gap between the upper plate and the holding portion according to the present invention, it is possible to prevent the contamination of the product due to the falling off of the attached product or the incorporation of impurities due to abrasion caused by the attachment. In the present invention, the upper plate of the rotating disk has an outer diameter 'beyond the holding portion' and the upper plate and the holding portion of the rotating disk are disposed so as not to overlap with each other in the direction of the rotational axis of the rotating disk. By making the inner diameter of the upper plate of the rotating disk smaller than the outer diameter of the holding portion or the rotation of the upper plate of the rotating disk and the rotating plate of the holding portion, the direction of the rotation axis does not overlap, thereby being further improved The effect of preventing the adhesion of the material of the gap between the upper plate of the rotating disk and the holding portion. The present invention is preferable in that at least a part of the upper plate of the rotating disk forms a scraping device for attaching the adhering matter to the holding portion. By forming a plate on the upper surface of the rotating disk for scraping off the attached teeth and the clothes attached to the holding portion, it is possible to effectively prevent the deposit from adhering to the holding portion. In the present invention, the scraping device is configured to be in contact with the holding portion preferably. The scraping device is a device for rotating and scraping the attachment attached to the holding portion by rotating the disk. Thus, when the scraping device is configured to come into contact with the protector, the scraping device and the retaining portion are worn by the rotation 2 and may be mixed in the product. Therefore, it is preferable that the scraping device is disposed so as not to be in contact with the holding portion. In the present invention, the scraping device is configured to rotate from the rotating shaft of the rotating disc

2030-7267-PF 7 milk loii * . *

It is better to look at the direction and not to overlap the guard A and the brother. Alternatively, it is preferable that the scraping device is viewed in the axial direction and the portion of the protective member that has a rotation from the rotating disk. ^ ^ ^ The scraping I is preferably a moving mechanism that moves in accordance with the rotation of the rotating disk. In the present invention, the mechanism for leaving the holding portion is preferable. In the present invention, the needle is stabilized by the rotation of the rotating disk in the circumferential direction or the like.

The side moving mechanism is close to the rotation when the rotation speed of the rotating disk becomes faster when the rotation speed of the rotating disk becomes faster. The scraping device is composed of a plurality of scraping pins, and the arrangement is equally spaced in the circumferential direction of the upper plate. better. By scraping the needle, the number of the rotating disc can be reduced.

Fortunately, in the present invention, it is preferable that the portion of the holding portion and the bottom surface facing the upper plate are tapered to widen the gap between the outer periphery and the upper plate. In the present invention, the less-partial portion on the inner circumferential side end portion of the upper plate of the rotating disk is formed to have a wider taper width toward the inner circumference and the retaining portion, and the tapered portion is in the holding portion and/or the rotating disk. At least a portion of the upper plate is further tapered to ensure sufficient adhesion to the material of the gap between the upper plate of the rotating disk and the retaining portion because the spacing between the upper plate and the retaining portion of the rotating disk can be sufficiently ensured. In the present invention, it is preferable that the holding portion is provided with an exhaust mechanism for exhausting. An exhaust mechanism is provided in the holding portion, and by adhering to the material of the holding portion, the adhering matter attached to the holding portion can be prevented. The method for drying a powder of the present invention is characterized in that the above-mentioned 2030-7267-PF 8 1291011 is used as a spray drying apparatus to contain a raw material powder = granulated. According to the drying method of the present invention, a powder having a good particle size distribution and a small amount of impurities can be obtained by using a helium drying device of ΐ:. According to the present invention, the knife cloth can effectively prevent the adhesion of the raw material for rotating the gap, thereby effectively preventing the particle size variation of the product due to the de-lomination of the product or the grinding of the adhering matter. Mixed in. [Embodiment] Hereinafter, the present invention will be described in accordance with an embodiment shown in the drawings. Embodiment 1 As shown in Fig. 1, a spray drying system according to an embodiment of the present invention includes: a spray drying device; a slurry supply device; and a sister supply pump 11 supplies a spray drying device; Hot air supply device: The air supply for drying is supplied by: wind = 12; and the exhaust device (cycler, bag filter, and air blower for recycling machine 16). In the spray drying system of the present embodiment, the spray-drying device 1 is supplied from the material-loading pump 11 to the spray-drying device 1. The raw material powder and the solvent are aggregated by a binder or the like, and are supplied from the hot air supply device via the blower 12 After drying the raw material in the spray drying device i by using hot air for drying, granular raw material particles are obtained.

. The spray drying device i includes a cylindrical drying cylinder 10 and a spray portion 2 having no upper center portion of the cylinder 10. Self-supply supply device: The slurry unit 11 supplies the spray unit 2 to collect the slurry, and the supplied slurry is sprayed into the inner wall of the drying cylinder by spraying 2030-7267-PF 9 1291011 2 shape. After the iron, the slurry is sprayed, and then the dry welding is carried out by the spray. The supply device is dried by hot air through the blower, and then becomes the air outlet. The self-drying material-free row is as shown in Fig. 2. The spray shaft 4 is configured to rotate freely, the material collecting hose (H disk 3, via the rotating minute) 5; the rotating car is supplied by the 4, and the gossip supply device. The distributor 6 holds the slurry hose 5 by means of the outer damper 6. Further, 6 and the lower end of the outer casing 7 ν7 = 固定 are fixed from the outer peripheral side. Dispenser The slurry manifold 5 has a "holding portion". ϋ has a discharge portion for discharging the slurry from the slurry supply, and a supply from the slurry device is recognized by the slurry supply device, and the outlet portion 5a is dropped onto the rotary disk 3 In the row state, the material 5 is as...=two in the symmetrical position configuration of the present embodiment? 4 is centered at j 8 〇. Or configure the location. However, the number of the hoses 5 is not particularly limited. In addition, in the case where the number of the hoses 5 is more than two, the thickness of the slurry hose 5 on the tow of the rotating disk 3 becomes a fixed value. _Setting into a slurry, and forming a rhododendron of the slurry hose 5 However, for example, nylon or the like can be used. The material is not particularly limited, and the disc 3 is rotated, and the lower plate 3f has a plurality of dispersing pins 32 under the rotation axis 4: a top surface of the rotating disc 3 is disposed in the dispersing needle The upper upper tray 3 is fixed on the 32 by the rotating shaft plate 3 3 . Rotate the cut glaze 4 to take the speed of 3 〇〇〇. Use the centrifugal force of the rotation 〇 rpm to rotate freely, shoot. The slurry discharged from the discharge portion 53 can be sprayed into a slurry

2030-7267-PF and D. In the present embodiment, the slurry of the spray unit 2 is a spray method of 10 1291011. First, the material is collected from the discharge portion ~ the vehicle with the liquid 31 on the lower plate 31 of the rotating disk 3; ^ pull-heart-dropping H' is rotated by the rotation of the rotating disk 3, and the droplets of the material are rotated on the lower plate 3' It is attached to the peripheral surface of the lower portion of the dispersion needle 32. Then, the droplets attached to the material attached to the Zhou Zhou are lifted by the centrifugal force at the needle of the dispersing needle 32, and are separated from the upper end of the dispersing needle 3 2: the surface is gradually ...; There is an eight-material form, and the upper plate 33 is formed above the dispersing needle 32. The function of the spray stabilization of the unnamed droplets is made by 33', and the particle size distribution of the obtained particles becomes sharp: in the implementation of i: By forming the upper plate 33', the particle size distribution can be sharpened, and the yield of the particle size distribution is about 10%. In the present embodiment, as shown in Fig. 2, the inner diameter of the upper plate 33 of the rotary disk 3 ((1) is larger than the outer diameter (r2) of the lower end portion 7a of the outer casing 7, and as shown in Fig. 3, the self-rotating 聋 4 The direction of the upper plate 33 and the outer portion 7 of the outer casing 7 are arranged so as not to overlap. By doing so, it is possible to prevent the raw material from adhering to the gap between the upper plate 33 and the minute H 6 of the rotating disk 3 by preventing the adhesion of the raw material. It can effectively prevent impurities from being mixed due to the change of the particle size of the product due to the falling off of the attached material or the abrasion caused by the attached matter. The inner diameter (rl) of the upper plate 33 is made larger than the outer diameter of the lower end portion 7& 2) Large 'and: the upper plate 33 and the lower end portion 7a are arranged to be non-phased as seen in the direction of the rotation axis 4, and the size thereof is not particularly limited, but the inner diameter (rl) of the upper plate 3 3 is lower than the lower end portion 7a. The outer diameter (r2) is larger than 5~2·〇 is good, and the larger is 0·5~1_Omm. The difference between the inner diameter (rl) of the upper plate 33 and the outer diameter (r2) of the lower end & Too small, may occur between the upper plate 33 and the lower end 7&

2030-7267-PF Ί291011 - Attached to the raw materials. And when the difference is too big, it must be - not practical. Then, the TT moving plate 3 is too large. In addition, as shown in FIG. 1 ,, the mist portion 20 is formed in the connecting rod 3〇, and the upper plate 3 3 0 7 λ is taken as the lower end portion 7a. It is obtained ((7) is small. Therefore, in:; the main (rla) is more than the spray part 20 of the outer drying device, and the lower end 7a of the spray dry 7 is overlapped from the Korean ^ ^ / 乂, and ¥8=向,, The upper plate 33 and the outer casing are narrow, about 1 to 2 mm. The knife is provided with a gap between the 6 and the upper plate 330. Therefore, when the spray of the spray drying device of the prior art is spray-dried, the material I, , and The gap between the upper plate 330 and the distributor 6 is /, (SCallng), and 'the raw material is attached to the upper plate 33. And the second attachment is attached to the deposit, and the gap becomes "the gap", "妄. The attachment of the θ疋 size is dislocated, and the variation of the particle size of the other seat becomes larger in the gargle of the seat. In addition, due to the accumulation of the attachment, the high-speed rotation of the upper plate 330 and the distributor 6 The attachment occurs between the pick-ups. ^ The friction, the upper plate 33. Or one of the distributors 6 wear: impurities are mixed into the product, there are also products In the present embodiment, the diameter of the upper plate 33. (1) is larger than the outer diameter (r2) of the lower end portion 7a of the outer casing 7, and the rotation is in the inner 4 direction. The upper plate 33 and the lower end portion 7a of the outer casing 7 are disposed so as not to be the most pregnant, and the problem of the attachment % of the spray portion 2 of the conventional spray drying device can be solved. 1 Then, the self-heating air supply device is used via FIG. The hot air for drying supplied by the blower 12 shown in the figure (18 〇 23 23 ( rc is preferable) dries the droplets of the slurry from the mist portion 2, and then becomes particles, and finally takes out from the drying material discharge port 13 . According to the present embodiment, it is possible to obtain particles having a good particle size of 2030-7267-PF 12 1291011, and a small amount of impurities, and a small amount of impurities are mixed in. Further, a whirlwind of a drying hot air utilization system supplied from a hot air supply device The air conditioner 16 and the air filter 16 for the recovery machine are recovered together with the solvent or dust which is spray-dried and vaporized. Embodiment 2, the spray unit 2a and the embodiment of the present embodiment shown in Fig. 4 1 T mist portion 2 is compared to the following The same structure and function are omitted, and the description thereof will be omitted. φ The spray portion 2a of the present embodiment is different from that of the first embodiment, and the plate 3 3 a is formed on the rotating disk 3 a for scraping adhesion. The scraping needle 3 4 a of the attachment on the outer peripheral surface of the lower end of the outer casing 7 7 a. The spray portion 2 of the first embodiment shown in Figs. 2 and 3 prevents the raw material from adhering to the upper plate 33a and the distributor 6 However, depending on the rotation condition of the rotating disk 3a or the kind of the raw material to be used, as shown in Fig. 4, the attachment portion 9 may be generated from the outer peripheral portion of the lower end portion 7a of the outer casing 7 to the upper surface of the upper plate 33a ( Shown with dashed lines). φ In the present embodiment, the scraping needle 34a is formed on the upper plate 33a, and the attachment 9 is scraped off by the rotation of the rotary disk 3. Further, the scraping pins 3 are arranged at equal intervals in the circumferential direction of the upper plate 33a of the rotary disk as shown in Fig. 5 of the V-line cross-sectional view of Fig. 4. In the present embodiment, as shown in Fig. 5, four scraping pins 34a are arranged, but the number of the pins is not particularly limited. Further, in the case where two or more scraping pins 34a are disposed, it is preferable to arrange at equal intervals in the circumferential direction of the rotating disk 3a in order to secure the rotational balance. In the present embodiment, the upper plate 33a is provided with a spring 35a. The bomb is held by the inner peripheral side of the rotating disc 3a by its elastic force to hold the scraping needle 34a. Scrape 2030-7267-pF 13 Ί291011 Use: Μ: magazine 夬 - 力 force within the rotating disc 3a The needle 34a uses the magazine 除 to remove the needle 34a. Scrape to move. That is, when the rotational speed of the rotating rotating plate 3a is increased in diameter, the rotation:, the force of the two needles is used. When the rotation of the rotating disk 3a is turned, the rotation/逹 is moved to the outer peripheral side; otherwise, when it is rotated. Turning to the reduction~ Using the elastic force of the magazine 35a to move to the inner circumference side: in the movement: 39 is easy to generate when the rotation speed of the rotating disc 3a is relatively slow, and the speed of the ^ a is almost not produced when the speed is relatively fast; i + ^ ^ Moreover, when the transfer is fast, the scraping needle 34a is located in the hillside of the birth of the second hand; Further, the movement of the rotating disk 3a may be hindered. 7& attaching the above-mentioned Μ - this is preferable in the case where the scraping pin 34a is used to make the moving mechanism. Part 7 is connected: the needle is removed - and is arranged to be the lower end of the distributor 6 and the outer casing 7.丨仏 No contact is set to ^ The shortest distance between about 2 $ and the lower end portion 7a The scraping needle 34& or the lower end portion 73 is worn by rotation, and the abrasion may be mixed into the product. The material to be removed from the needle is not particularly limited, but for example, hemp steel, emulsified enamel: is, oxidized dysfunctional pottery or the like. According to the prevention of ^ ^ _ wood 砚 沾 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 其中 尤其 尤其 尤其 尤其 尤其 尤其 尤其 尤其 利用 利用 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ In the zirconia-based ceramics, the spray portion 2b of the present embodiment shown in Fig. 6 has the same structure and function as the spray portion 2a of the second embodiment except for the following description, and the description thereof will not be repeated. 2030-7267-PF 14 l29i〇n The upper plate 33b forming portion 7 of the swash plate 3b is scraped off and attached to the outer surface of the lower end F 7a of the outer casing 7 and the distributor 6 to remove the needle 34b. The L-shaped scraper of the attachment is her form...> The D4b is not only the outer surface of the lower end portion 7a, but also can be removed from the attachment attached to the dispenser 6 In the embodiment 4, the spray portion 2c of the present embodiment shown in the fourth embodiment has the same effect as the above-described embodiment except for the following description, and the repeated description thereof will be omitted. ‘ figure

The spray portion 2c of the present embodiment is different from the embodiment ,, and the lower surface of the adapter 6c is formed with a taper 6 6C-1 which widens the gap between the outer circumference and the upper plate 33. In the present embodiment, by the lower side of the distributor 6c, the taper 6c-buin can sufficiently ensure the upper plate "and the distributor = the eve of the material for preventing the gap between the upper plate 33 and the distributor 6c". The taper 丨 丨 丨 formed under the distributor 6 c may be formed as long as at least a part of the j distributor 6c is formed, for example, _ = arbitrary set taper starting point 6c_.2 or cone angle can be matched. Embodiment 5 FIG. The spray portion 2d of the present embodiment has the same structure and function as the spray portion 2 of the first embodiment, except for the following description, and the description thereof will not be repeated. 2 (1) is different from the first embodiment in that a tapered portion 33d is formed on the inner peripheral side end portion of the upper plate 33d on the upper surface 33d of the rotating disk 3d, and the gap is widened toward the inner circumference and the gap 2030-7267-PF 15 '1291011. In the present embodiment, by forming a taper 3% -1 on the inner peripheral side end portion of the upper plate 3 3 d, since the sarcophagus is kept at the interval between the upper plate 33d and the distributor 6, it is possible to contend. The adhesion of the raw material to the gap between the upper plate 3 3 d and the distributor 6 is prevented. Further, on the inner peripheral side of the upper plate 33d The taper 33d-1 formed on the upper portion of the upper portion 313 may be formed by at least a part of the upper end portion of the inner peripheral end portion of the upper plate 3 3 d. For example, the taper starting point 3 3d - 2 or the taper angle may be arbitrarily set. 6 The spray portion of the embodiment shown in Fig. 9 has the same structure and operation as the spray unit 2 of the first embodiment except for the following description, and the description thereof will not be repeated. The mist portion 2e is different from that of the first embodiment, and the exhaust hose 8 is provided in the distributor 6e, and the gas discharge portion 8a provided on the outer side surface of the outer casing 76 can be exhausted. Since the gas discharge portion 8a is exhausted through the exhaust gas-software 8, it is possible to prevent the adhesion of the raw material on the surface on the outer peripheral side of the outer casing 7e, and it is also possible to effectively remove the deposit when the raw material adheres. The discharge portion 8a is preferably formed on at least a part of the outer peripheral surface of the outer casing 7e, and may be formed in plural as needed. Further, in the present embodiment, the gas discharge portion 8a is formed on the outer peripheral side surface of the outer casing 7e, but Below the distributor 6e In this case, the adhesion of the raw material under the distributor 6 e can be prevented. Further, the gas discharge portion 8a may be formed on both the outer peripheral surface of the outer casing 7e and the lower surface of the distributor 6e. 2030- 7267-pf 16 Ϊ291011 The following may be formed. The gas discharged from the gas discharge unit 8 a is not particularly limited, and may be appropriately selected in combination with the material for spray drying. For example, air or nitrogen may be used. Further, the temperature of the gas discharged from the gas discharge portion 8a is about normal temperature ~4 〇〇t: preferably, the other embodiment of the drying hot air supplied from the hot air supply device via the blower 12 is the same. The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention. For example, in each of the above embodiments, the scraping pins 34a and 34b, the taper 6c-b 33d-1, and the gas discharge portion 8a are formed separately, but the composite can be formed as long as the effects of the present invention are not impaired. . EXAMPLES Hereinafter, the present invention will be described in terms of more specific examples, but the present invention is not limited to these examples. First, a ceramic raw material is prepared on the starting material, and the ceramic raw material, the binder, and the pure water are stirred and mixed, and then mixed and pulverized using a mixing pulverizer to prepare a ceramic slurry. Next, the obtained ceramic slurry was spray-dried using the spray drying apparatus (Example) of the present invention having the spray portion 2 shown in Figs. Further, on the conditions of spray drying, the number of revolutions of the rotary disk 3 was set to 35 Torr, and the temperature of the hot air for drying was set to 19 Torr. Further, the difference between the inner diameter (ri) of the upper plate 33 of the spray portion 2 and the outer position (r2) of the lower end portion of the outer casing 7 was set to 2.0 min. 2030-7267-PF 17 Ί291011 In addition, with the above-mentioned other-like use, there are drawings, the obtained ceramic material system, and the 耖 琢 琢 琢 琢 斤 斤 斤 斤 喷雾 喷雾 喷雾 喷雾Spray drying was performed (for example). For the use of the invention, the ceramic granules of the corpse of the corpse of the invention, and the use of the sacred granules of the genus To - measure the yield of granules. The hunter evaluated the presence of the ceramics in the black ceramics of the Taoda ceramic particles and whether the agglomeration of the particles existed. Perform an appearance check on the number of inspection lots indicated. ^ + The batch of black foreign matter and pellets in the community is treated as a bad batch, and the number of bad batches is compared with the number of inspections: : the ratio is 'as a bad rate. The lower the defect rate, the better. Table 1 shows the result 0

θ Regarding the measurement of the yield of the particles, for the distribution of the measured tensile properties in the obtained ceramic particles, the particles having the particle size in the range of 3 is regarded as a good product, and the weight of the good product is relative to the total weight of the particles. Percentage, as a yield. The results are shown in Table 2. The higher the yield, the better. Table 2 Example Comparative example Yield rate [%] 94. 0 87. 6

2030-7267-PF 18

I Ί291011 Evaluation 1 From Table 1, the ceramic granules obtained by using the spray drying apparatus (Example) of the present invention, black foreign matter and agglomerates of the granules were completely absent, and good results were obtained. In the conventional spray drying apparatus (Comparative Example), the ceramic particles obtained were confirmed to have black foreign matter and agglomerates of the particles, and the defective ratio was 1 · 38%. In addition, the black foreign matter confirmed in the comparative example is due to the wear of the dispenser 6 and/or one of the upper plates 330 of the rotating disk 30, and the agglomerates of the particles are attached to the distributor 6 and the connecting rod. 3 0 The deposits deposited between the plates 3 3 0 . From the results, it has been confirmed by using the spray drying device (Example) of the present invention that the raw material can be effectively prevented from adhering to the gap between the upper plate of the rotating disk and the distributor (holding portion). Evaluation 2 From Table 2, ceramic particles obtained by using the spray drying apparatus (Example) of the present invention, the yield was 94%, and good results were obtained. However, using the Tao Jing granules obtained by the spray drying apparatus (Comparative Example), the yield rate was changed to 87.6%, and less than 90%' was not good in the yield. Since this, ',. The use of the spray drying device of the present invention is carried out (the implementation can eliminate the variation of the particle size distribution, and as a result, it can be confirmed that the improvement can be made [the simple description of the drawing]. The structural diagram of the figure is shown in Fig. 1 Spray spray drying device of one embodiment of the spray drying device

2030-7267-PF 19 1291011 - Sectional view of the main part of the section. Fig. 3 is a cross-sectional view showing the main part of the spray portion along the m-m line shown in Fig. 2. Fig. 4 is a cross-sectional view showing the main part of a spray mist portion of a spray drying device according to another embodiment of the present invention. Fig. 5 is a cross-sectional view showing the main part of the spray portion taken along the line V - V shown in Fig. 4. Fig. 6 is a cross-sectional view showing the main part of a spray portion of a spray drying device according to another embodiment of the present invention. Fig. 7 is a cross-sectional view showing the main part of a spray portion of a spray drying device according to another embodiment of the present invention. Fig. 8 is a cross-sectional view showing the main part of a spray portion of a spray drying device according to another embodiment of the present invention. Fig. 9 is a cross-sectional view showing the main part of a spray portion of a spray drying device according to another embodiment of the present invention. Fig. 10 is a cross-sectional view showing a main portion of a spray portion of a conventional spray drying device. [Explanation of main component symbols] ' 1 Spray drying device 2 Spray section I 0 Drying cylinder II Slurry pump 12 Blower 13, Dry material discharge port 2030-7267-PF 20 1291011 - 14 Cyclone 15 Bag filter 16 Recycling Machine blower

2030-7267-PF 21

Claims (1)

X. Patent application scope: Shot 1· A spray drying device, comprising a slurry discharge portion, discharging a material paddle holder, rotating the disk, keeping the slurry row from the slurry discharge portion; and discharging the discharge portion The slurry spray is characterized by: The upper plate is formed on the rotating disk; the inner diameter of the outer diameter is large. The rotating disc has an upper surface than the holding portion 2. The spray drying device comprises: a slurry discharge portion that discharges the slurry; the projecting holding portion rotates the disk to hold the slurry discharge portion; and The slurry discharged from the slurry discharge portion is characterized by: The holding portion is configured to form an upper plate on the rotating disk from the rotating disk. The upper plate of the rotating disk does not overlap with the direction of the rotating shaft. Such as the scope of patent application! Or a spray drying device of two or more, wherein at least a part of the upper plate of the rotating disk forms a scraping device for scraping off the adhering matter attached to the retaining portion. 4. The spray drying device according to item 3 of the patent application, wherein the addition to the setting, the setting and the holding portion are not connected. 5. The spray drying device of claim 3, wherein the removing device is configured to be viewed from a direction of a rotation axis of the rotating disk and does not overlap the holding portion 203 〇 7267-pp 22 1291011 '. 6. If the tongue-and-spinning device of the third paragraph of the patent application is applied, the Φ 〆 〆 除 除 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Directional view and ?· Spraying cognac as claimed in item 3 of the patent scope. The scraping device is provided with the next day, π 龋 龋 & Fu Yan Chang Zuo moves to the mobile. 2. 8. Spray dry according to item 7 of the patent application scope. The moving mechanism is ###', placed therein, and when the rotational speed of the rotating disk becomes slow, it remains 4, and the mechanism close to the holding portion. .D apply for the third paragraph of the patent scope to spray the scraping device, which is smashed by the number of smashing needles, and the number of smashing needles is 刮 ΠΤ ΠΤ + / / / / / / / / / / / / The board is arranged at equal intervals in the 0-week direction. 1G. In the drying device of claim 4 or 2, the at least a portion of the bottom surface of the holding portion and the upper surface of the upper plate is tapered to widen the gap between the outer circumference and the upper plate. U. The spray drying device according to claim 1 or 2, wherein: at least a portion of the upper end portion of the inner circumferential side of the upper plate of the rotating disk forms a cone widening the gap between the inner circumference and the holding portion shape. 12. The spray drying device according to claim 1 or 2, wherein the holding portion is provided with an exhaust mechanism for discharging t. 2030-7267-PF 23