An egg yolk powder horizontal spray drying apparatus

Abstract

The application discloses an egg yolk powder horizontal type spray drying equipment and belongs to the technical field of drying equipment.The equipment comprises a filtering part, a cleaning part and a drying equipment main body.The inside of the drying equipment main body is provided with an atomizing nozzle for spraying atomized egg yolk liquid.The atomizing nozzle is fixedly connected with a supporting frame.The supporting frame is rotatably connected with a scraper for cleaning the nozzle spout end.The inside of the supporting frame is provided with a transmission assembly for driving the scraper to rotate.The scraper is driven to rotate, the egg yolk powder particles and the undried mist droplets adhered to the surface of the nozzle are removed, the accumulation of the adhered matters is prevented through the mechanism of regular and timely automatic cleaning, the nozzle is ensured to be kept in a clean state, the purity and quality of the egg yolk powder are ensured, the nozzle aperture is ensured to be unobstructed, the spray particle size uniformity is maintained, the service life of the nozzle is prolonged, manual intervention is reduced, the operation strength and downtime are reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drying equipment, and more particularly to an egg yolk powder horizontal spray drying equipment. BACKGROUND

[0002] With the upgrading of the food industry to "fine and high value-added", egg yolk powder, as a functional raw material rich in lecithin, high-quality protein and vitamins, has seen a sustained increase in demand in the fields of baked goods, infant formula milk powder, health foods, etc. The market's quality requirements for egg yolk powder are becoming increasingly stringent, not only ensuring high protein retention rate and low microbial indicators, but also requiring precise control of spray particle uniformity. Horizontal spray drying equipment has become the core equipment for large-scale production of high-quality egg yolk powder due to its advantages of large processing capacity, controllable material residence time, and good protection of heat-sensitive components. The atomizing nozzle, as a key component for "liquid-powder conversion", directly determines the production efficiency, product purity and equipment operation and maintenance costs of egg yolk powder.

[0003] Currently, when producing egg yolk powder through existing horizontal spray drying equipment, the raw material for making egg yolk powder, egg yolk liquid, has certain viscosity and is prone to lipid oxidation and microbial reproduction in a continuous high-temperature environment, which causes the egg yolk liquid to easily adhere to the surface of the nozzle outlet end when it is sprayed through the nozzle of the horizontal spray drying device. The adhesion will quickly dry in the high-temperature environment, forming particulate matter. When the accumulation of particulate matter is too much, it may block the spray opening, affecting the spray effect of the nozzle. Meanwhile, the egg yolk powder adhering to the nozzle will deteriorate under the action of continuous high temperature, which may contaminate the spray and affect the product quality when it comes into contact with the spray droplets sprayed from the spray opening.

[0004] In view of this, we propose an egg yolk powder horizontal spray drying equipment. SUMMARY

[0005] 1. Technical problem to be solved

[0006] The purpose of the present application is to provide an egg yolk powder horizontal spray drying equipment that solves the technical problems raised in the background art.

[0007] 2. Technical solution

[0008] The technical scheme of the present application provides an egg yolk powder horizontal spray drying equipment, which comprises a filtering component, a cleaning component, a drying equipment main body, an atomizing nozzle arranged in the drying equipment main body for spraying the atomized egg yolk liquid, a support frame fixedly connected to the atomizing nozzle, a scraper rotatably connected to the support frame for cleaning the nozzle outlet end of the atomizing nozzle, a transmission assembly arranged in the support frame for driving the scraper to rotate, a baffle fixedly connected to the scraper, a blocking assembly arranged in the atomizing nozzle for closing the nozzle outlet end of the atomizing nozzle, a flushing assembly arranged on the support frame for spraying alkaline solvent to flush the scraper, a discharge assembly arranged on the support frame for discharging waste liquid, and a limiting plate fixedly connected to the support frame for limiting.

[0009] The scraping component comprises a scraping assembly arranged in the flushing assembly for scraping the egg yolk liquid on the scraper, and an absorption pad arranged on the flushing assembly for absorbing the alkaline solvent attached to the scraper.

[0010] By adopting the above technical scheme, the scraper is arranged to clean the nozzle outlet end of the atomizing nozzle, preventing the accumulation of attachments and ensuring that the nozzle is always clean, thereby ensuring the purity and quality of the egg yolk powder.

[0011] As an optional scheme of the technical scheme of the present application, the drying equipment main body comprises a heating fan, a drying chamber arranged on the side of the heating fan, a gas-solid separator arranged on the side of the drying chamber away from the heating fan, a liquid delivery tank arranged above the drying chamber, a centrifugal atomizer arranged below the liquid delivery tank, the centrifugal atomizer being located between the drying chamber and the liquid delivery tank, the bottom of the centrifugal atomizer being connected to the atomizing nozzle, and the atomizing nozzle extending through the top of the drying chamber to the inside of the drying chamber.

[0012] By adopting the above technical scheme, the atomizing nozzle sprays mist droplets in the direction of the hot air flow in the drying chamber, and the mist droplets flow parallel to the hot air, so that the water in the mist droplets evaporates quickly.

[0013] As an optional scheme of the technical scheme of the present application, the transmission assembly comprises a cylinder arranged in the support frame, a telescopic rod arranged in the cylinder, a rack fixedly connected to the telescopic rod, a gear arranged above the rack, the gear being engaged with the rack, the scraper being fixedly connected between the gear and the side of the gear away from the baffle, the gear being rotatably connected between the inner wall of the support frame, and the scraper and the baffle being located below the atomizing nozzle, the side of the scraper close to the atomizing nozzle being provided with an inclined groove, and the side of the scraper close to the gear being attached to the surface of the support frame.

[0014] As an optional scheme of the technical scheme of the present application file, the blocking assembly comprises a gas storage bag arranged in the support frame, a first sliding groove is arranged in the support frame, an air passage is arranged in the support frame, a second sliding groove is arranged in the inside of the atomizing nozzle, a blocking plate is slidably connected in the inside of the atomizing nozzle, a folding air bag is arranged in the inside of the blocking plate, and sliding blocks are fixedly connected to the two sides of the blocking plate.

[0015] As an optional scheme of the technical scheme of the present application file, the blocking plate is slidably connected between the sliding blocks and the inner wall of the second sliding groove, the air passage extends through the inner wall of the support frame to the inside of the atomizing nozzle, the rack is slidably connected between the inner wall of the first sliding groove, one end of the gas storage bag is fixedly connected to the side of the rack away from the telescopic rod, the other end of the gas storage bag away from the rack is fixedly connected to the inner wall of the first sliding groove, and the inside of the gas storage bag is communicated with the folding air bag through the air passage.

[0016] By adopting the above technical scheme, the blocking plate can prevent the leakage of raw materials during cleaning and the pollution of the inside of the nozzle by the flushing liquid.

[0017] As an optional scheme of the technical scheme of the present application file, the flushing assembly comprises a pressing plate rotatably connected to the support frame, a volute spring is arranged in the inside of one end of the pressing plate, a spraying port is arranged in the end of the pressing plate away from the volute spring, a flow guide groove is arranged in the inside of the pressing plate, a first one-way valve is arranged in the inside of the flow guide groove, a liquid storage bag is arranged below the pressing plate, a second one-way valve is arranged below the liquid storage bag, a liquid delivery tube is arranged below the second one-way valve, and a liquid delivery device is arranged at the end of the liquid delivery tube away from the second one-way valve.

[0018] As an optional scheme of the technical scheme of the present application file, the spraying port is communicated with the inside of the liquid storage bag through the flow guide groove, the bottom of the liquid storage bag is fixedly connected to the support frame, the top of the liquid storage bag is fixedly connected to the bottom of the pressing plate, a liquid delivery hole is arranged in the support frame, the second one-way valve is located in the liquid delivery hole, the inside of the liquid storage bag is communicated with the inside of the liquid storage bag through the liquid delivery hole, the liquid storage bag is used for storing alkaline solvent, the liquid delivery tube extends to the outside of the drying chamber through the inner wall of the drying chamber, the liquid delivery device is located above the heating fan, the pressing plate is elastically connected between the volute spring and the support frame, a limiting plate is located above the pressing plate, the bottom of the limiting plate abuts against the top of the pressing plate, and the pressing plate is located at the side of the atomizing nozzle.

[0019] By adopting the above technical scheme, the flushing assembly can clean the scraper, prevent the accumulation of attachments on the scraper, and reduce the occurrence of the situation that the subsequent cleaning effect of the scraper is reduced.

[0020] As an optional solution to the technical solution of this application, the discharge assembly includes a discharge trough disposed on a support frame, a discharge pipe disposed below the discharge trough, a negative pressure pump disposed at the end of the discharge pipe away from the discharge trough, a discharge hole disposed on the support frame and located below the discharge trough, the discharge trough communicating with the discharge pipe through the discharge hole, the negative pressure pump extending through the inner wall of the drying chamber to the outer side of the drying chamber, the negative pressure pump being located on the side of the infusion set, and the discharge trough being located between the storage bladder and the scraper.

[0021] By adopting the above technical solution, a drainage tank is set up to discharge waste liquid in a timely manner, avoiding liquid stagnation or backflow into the nozzle area and blocking the path of cross-contamination.

[0022] As an optional solution to the technical solution of this application, the scraping component includes a third slide groove formed in the pressure plate, an elastic element is provided inside the third slide groove, and a scraper is slidably connected inside the third slide groove.

[0023] As an optional solution to the technical solution of this application, the scraper is elastically connected to the inner wall of the third slide groove through an elastic element. The end of the scraper away from the elastic element extends through the inner wall of the third slide groove to the side of the pressure plate near the atomizing nozzle. The third slide groove is located above the spray nozzle. The bottom of the absorption pad is fixedly connected to the top of the pressure plate. The absorption pad is located on the side of the limiting plate near the atomizing nozzle. The absorption pad is located above the third slide groove. The material of the absorption pad is silicon dioxide. The material of the scraper is smooth alkali-resistant material. The dimensions of the absorption pad and the scraper on the side near the atomizing nozzle are adapted to the cross-sectional dimensions of the scraper.

[0024] By adopting the above technical solution, the scraping component can be set up to further clean the scraper and improve the cleaning effect. Beneficial effects

[0025] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0026] 1. Before cleaning, the combination of cylinder, rack, air reservoir and folding air bag makes the baffle plate in close contact with the top of the nozzle inner wall, forming a physical barrier to completely prevent the residual droplets in the atomizing nozzle from flowing out, avoiding material waste and secondary pollution of the scraper. In addition, sealing the nozzle can block the entry of external high temperature air into the nozzle, reducing the contact time between the droplets in the atomizing nozzle and the high temperature environment during the cleaning process.

[0027] 2. After the aforementioned closed atomizing nozzle, the scraper is rotated by the cooperation of a cylinder, rack, and gear to remove the egg yolk powder particles and undried droplets adhering to the nozzle surface. Through a regular and timely automatic cleaning mechanism, the accumulation of deposits is prevented, ensuring that the nozzle is always kept clean, thereby guaranteeing the purity and quality of the egg yolk powder, ensuring unobstructed nozzle orifices, maintaining uniform spray particle size, and extending the service life of the nozzle. At the same time, it reduces manual intervention, lowers operational intensity and downtime, and improves production efficiency.

[0028] 3. During the process of the scraper rotating to clean the atomizing nozzle, alkaline solvent will be sprayed from the spray nozzle to wash away the egg yolk residue on the scraper surface, causing saponification and protein denaturation, reducing the viscosity of the egg yolk, making it easier to wash away loose particles, cleaning the deposits on the scraper, avoiding the decrease in scraping efficiency due to the accumulation of deposits, and ensuring that the contact pressure between the scraper and the nozzle surface is stable after each cleaning.

[0029] 4. During the above-mentioned rinsing process of the scraper, the rinsing space formed by the pressure plate, liquid reservoir, scraper, support frame and baffle will be simultaneously ensured that the solvent is sprayed onto the scraper surface, avoiding liquid overflow, keeping the working environment clean and preventing contamination of the drying chamber.

[0030] 5. During the rotation of the scraper, the air pressure inside the folded airbag will increase continuously, which will enhance the sealing of the baffle plate. During the scraper cleaning and rinsing process, the nozzle will always be closed to prevent droplet leakage and rinsing liquid from entering the atomizing nozzle and causing contamination.

[0031] 6. During the rinsing process of the scraper described above, the scraper will simultaneously remove stubborn egg yolk liquid and particles that have not been washed away by the solvent from the scraper surface, thoroughly cleaning the attachments on the scraper, further avoiding the decrease in scraping efficiency caused by the accumulation of attachments, ensuring that the contact pressure between the scraper and the nozzle surface is stable after each cleaning, and extending the service life of the scraper.

[0032] 7. The solvent sprayed through the nozzle hits the scraper and splashes in all directions, washing away the residue scraped off by the scraper and preventing secondary pollution of the scraper.

[0033] 8. The elastic element provides cushioning when the scraper is under pressure, preventing damage to the scraper surface, while ensuring that the scraper and scraper remain in continuous contact, thus improving scraping stability.

[0034] 9. During the rinsing and scraper cleaning process described above, the absorbent pad will simultaneously come into direct contact with the small amount of alkaline liquid remaining on the scraper, absorbing and chemically neutralizing it. The neutralized silicate is non-flowing, preventing the residue from re-contacting the nozzle with the scraper, blocking the cross-contamination path, and avoiding contamination of the scraper by the residual alkaline solvent, as well as secondary contamination of the atomizing nozzle surface during subsequent reset. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the main structure of a horizontal spray drying equipment for egg yolk powder.

[0037] Figure 2 This is a schematic cross-sectional view of a horizontal spray drying equipment for egg yolk powder.

[0038] Figure 3 For horizontal spray drying equipment of egg yolk powder Figure 2 Enlarged structural diagram at point A in the middle.

[0039] Figure 4 This is a schematic cross-sectional view of the discharge component in a horizontal spray dryer for egg yolk powder.

[0040] Figure 5 This is a cross-sectional schematic diagram of the rinsing component in a horizontal spray dryer for egg yolk powder.

[0041] Figure 6 This is a schematic cross-sectional view of the transmission component in a horizontal spray drying equipment for egg yolk powder.

[0042] Figure 7 This is a schematic cross-sectional view of the barrier component in a horizontal spray dryer for egg yolk powder.

[0043] Figure 8 This is a schematic diagram showing the structural relationship between the limiting plate and the support frame in a horizontal spray drying equipment for egg yolk powder.

[0044] Figure 9 For horizontal spray drying equipment of egg yolk powder Figure 8 Enlarged structural diagram at point B.

[0045] Figure 10 This is a schematic diagram showing the structural relationship and coordination between the scraper and the baffle in a horizontal spray drying equipment for egg yolk powder.

[0046] Explanation of the numbers in the diagram: 10. Main body of the drying equipment; 101. Heating fan; 102. Drying chamber; 103. Gas-solid separator; 104. Infusion tank; 105. Centrifugal atomizer; 11. Atomizing nozzle; 12. Support frame; 13. Transmission assembly; 131. Cylinder; 132. Telescopic rod; 133. Rack; 134. Gear; 14. Scraper; 15. Baffle; 16. Barrier assembly; 161. First chute; 162. Air storage bag; 163. Ventilation trough; 164. Folding air bag; 165. Barrier. 166. Plate; 167. Slider; 17. Second slide groove; 17. Flushing assembly; 171. Pressure plate; 172. Scroll spring; 173. Spray nozzle; 174. Guide groove; 175. First one-way valve; 176. Liquid reservoir; 177. Infusion tube; 178. Second one-way valve; 179. Infusion set; 18. Discharge assembly; 181. Drainage trough; 182. Drainage tube; 183. Negative pressure pump; 19. Limiting plate; 201. Third slide groove; 202. Elastic element; 203. Scraper; 21. Absorbent pad. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a link; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] Reference Figures 1 to 10This application provides a horizontal spray drying device for egg yolk powder, including a cleaning component. The device includes a drying equipment body 10. An atomizing nozzle 11 for spraying atomized egg yolk liquid is provided inside the drying equipment body 10. A support frame 12 is fixedly connected to the atomizing nozzle 11. A scraper 14 for cleaning the nozzle end of the atomizing nozzle 11 is rotatably connected to the support frame 12. A transmission component 13 for driving the scraper 14 to rotate is provided inside the support frame 12. A baffle 15 is fixedly connected to the scraper 14. A blocking component 16 for closing the nozzle end of the atomizing nozzle 11 is provided inside the atomizing nozzle 11. A rinsing component 17 for spraying alkaline solvent to rinse the scraper 14 is provided on the support frame 12. A discharge component 18 for discharging waste liquid is provided on the support frame 12. A limiting plate 19 for limiting movement is fixedly connected to the support frame 12.

[0051] The scraping component includes a scraping assembly disposed within the rinsing assembly 17 for scraping off egg yolk liquid from the scraper 14. The rinsing assembly 17 is provided with an absorbent pad 21 for absorbing alkaline solvent adhering to the scraper 14.

[0052] Reference Figure 1 and Figure 2 This application provides a horizontal spray drying device for egg yolk powder. The main body 10 of the drying device includes a heating fan 101. A drying chamber 102 is provided on the side of the heating fan 101. A gas-solid separator 103 is provided on the side of the drying chamber 102 away from the heating fan 101. An infusion tank 104 is provided above the drying chamber 102. A centrifugal atomizer 105 is provided below the infusion tank 104. The centrifugal atomizer 105 is located between the drying chamber 102 and the infusion tank 104. The bottom of the centrifugal atomizer 105 is connected to an atomizing nozzle 11. The atomizing nozzle 11 extends through the top of the drying chamber 102 and into the interior of the drying chamber 102.

[0053] Reference Figures 3 to 10 This application provides a horizontal spray drying device for egg yolk powder. The transmission component 13 includes a cylinder 131 disposed inside the support frame 12. A telescopic rod 132 is disposed inside the cylinder 131. A rack 133 is fixedly connected to the telescopic rod 132. A gear 134 is disposed above the rack 133. The gear 134 meshes with the rack 133. The side of the scraper 14 away from the baffle 15 is fixedly connected to the gear 134. The gear 134 is rotatably connected to the inner wall of the support frame 12. The scraper 14 and the baffle 15 are both located below the atomizing nozzle 11. An inclined groove is provided on the side of the scraper 14 near the atomizing nozzle 11. The side of the scraper 14 near the gear 134 is in contact with the surface of the support frame 12.

[0054] Reference Figures 3 to 10This application provides a horizontal spray drying device for egg yolk powder. The barrier component 16 includes an air storage bag 162 disposed in a support frame 12. A first sliding groove 161 and a ventilation groove 163 are provided in the support frame 12. A second sliding groove 167 is provided inside the atomizing nozzle 11. A barrier plate 165 is slidably connected inside the atomizing nozzle 11. A folded air bag 164 is disposed inside the barrier plate 165. Slider blocks 166 are fixedly connected to both sides of the barrier plate 165.

[0055] The baffle plate 165 is slidably connected to the inner wall of the second slide groove 167 via the slider 166. The ventilation groove 163 extends through the inner wall of the support frame 12 to the interior of the atomizing nozzle 11. The rack 133 is slidably connected to the inner wall of the first slide groove 161. One end of the air storage bag 162 is fixedly connected to the side of the rack 133 away from the telescopic rod 132. The end of the air storage bag 162 away from the rack 133 is fixedly connected to the inner wall of the first slide groove 161. The interior of the air storage bag 162 is connected to the folding air bag 164 through the ventilation groove 163.

[0056] Reference Figures 2 to 10 This application provides a horizontal spray drying device for egg yolk powder. The rinsing assembly 17 includes a pressure plate 171 rotatably connected to a support frame 12. A spiral spring 172 is provided inside one end of the pressure plate 171. A spray nozzle 173 is opened at the end of the pressure plate 171 away from the spiral spring 172. A guide groove 174 is opened inside the pressure plate 171. A first one-way valve 175 is provided inside the guide groove 174. A liquid storage bladder 176 is provided below the pressure plate 171. A second one-way valve 178 is provided below the liquid storage bladder 176. An infusion pipe 177 is provided below the second one-way valve 178. An infusion setter 179 is provided at the end of the infusion pipe 177 away from the second one-way valve 178.

[0057] The nozzle 173 communicates with the interior of the reservoir 176 through the guide groove 174. The bottom of the reservoir 176 is fixedly connected to the support frame 12, and the top of the reservoir 176 is fixedly connected to the bottom of the pressure plate 171. The support frame 12 is provided with an infusion hole, and the second one-way valve 178 is located inside the infusion hole. The infusion tube 177 communicates with the interior of the reservoir 176 through the infusion hole. The reservoir 176 is used to store alkaline solvent. The infusion tube 177 extends through the inner wall of the drying chamber 102 to the outside of the drying chamber 102. The infusion set 179 is located above the heating fan 101. The pressure plate 171 is elastically connected to the support frame 12 through the spiral spring 172. The limiting plate 19 is located above the pressure plate 171, and the bottom of the limiting plate 19 abuts against the top of the pressure plate 171. The pressure plate 171 is located on the side of the atomizing nozzle 11.

[0058] Reference Figure 4 and Figure 8This application provides a horizontal spray drying device for egg yolk powder. The discharge assembly 18 includes a discharge trough 181 disposed on a support frame 12. A discharge pipe 182 is disposed below the discharge trough 181. A negative pressure pump 183 is disposed at the end of the discharge pipe 182 away from the discharge trough 181. A discharge hole is opened on the support frame 12 and is located below the discharge trough 181. The discharge trough 181 is connected to the discharge pipe 182 through the discharge hole. The negative pressure pump 183 extends through the inner wall of the drying chamber 102 to the outer side of the drying chamber 102. The negative pressure pump 183 is located on the side of the infusion set 179. The discharge trough 181 is located between the storage bladder 176 and the scraper 14.

[0059] Reference Figures 8 to 10 This application provides a horizontal spray drying device for egg yolk powder. The scraping component includes a third groove 201 formed in a pressure plate 171. An elastic element 202 is disposed inside the third groove 201. A scraper 203 is slidably connected inside the third groove 201. The scraper 203 is elastically connected to the inner wall of the third groove 201 through the elastic element 202. One end of the scraper 203 away from the elastic element 202 extends through the inner wall of the third groove 201 to the pressure plate 171 near the atomizing nozzle 1. On one side of 1, the third chute 201 is located above the spray nozzle 173. The bottom of the absorbent pad 21 is fixedly connected to the top of the pressure plate 171. The absorbent pad 21 is located on the side of the limiting plate 19 near the atomizing nozzle 11. The absorbent pad 21 is located above the third chute 201. The absorbent pad 21 is made of silicon dioxide. The scraper 203 is made of smooth alkali-resistant material. The dimensions of the absorbent pad 21 and the scraper 203 on the side near the atomizing nozzle 11 are adapted to the cross-sectional dimensions of the scraper 14.

[0060] This application provides a horizontal spray drying device for egg yolk powder, the working principle and usage process of which are as follows:

[0061] First, the main body of the drying equipment 10 is started to blow pressurized and heated hot air into the support frame 12, and the pre-treated egg yolk liquid is transported into the infusion tank 104. After being pressurized, it enters the heating fan 101 for atomization. The atomized egg yolk liquid is sprayed into the support frame 12 through the atomizing nozzle 11, so that the hot air and the droplets flow in parallel in the drying chamber, evaporating the moisture. After the moisture in the droplets evaporates, egg yolk powder particles are formed. Then, the egg yolk powder particles enter the gas-solid separator 103 with the hot air, so that the particles are collected.

[0062] During the spraying process of the atomizing nozzle 11, in order to prevent the small amount of egg yolk liquid droplets adhering to the surface of the atomizing nozzle 11 from deteriorating and contaminating the spray, thereby affecting the product quality, the centrifugal atomizer 105 will be stopped periodically. The cylinder 131 will cause the telescopic rod 132 to push the rack 133 to slide towards the air storage bag 162 inside the first slide groove 161, compressing the air storage bag 162. The compression of the air storage bag 162 will cause the gas inside to enter the folded air bag 164 through the ventilation groove 163, causing it to expand and push the baffle plate 165 upward. The baffle plate 165 will slide upward in the second slide groove 167 through the slider 166. At the same time, the sliding of the rack 133 will drive the gear 134 meshing with it to rotate. The rotation of the gear 134 will drive the scraper 14 to rotate upward.

[0063] When the scraper 14 rotates to the position where it contacts the bottom of the atomizing nozzle 11, the top of the baffle plate 165 abuts against the top of the inner wall of the atomizing nozzle 11, blocking the nozzle opening of the atomizing nozzle 11 and preventing the droplets inside the atomizing nozzle 11 from flowing out and adhering to the scraper 14, wasting raw materials and making the scraper 14 difficult to clean, thus reducing the scraping effect of the scraper 14. At the same time, it can prevent the droplets inside the atomizing nozzle 11 from deteriorating due to prolonged contact with high-temperature air. At this time, the continued sliding of the rack 133 will only increase the air pressure inside the folded airbag 164, keeping it in a blocked state and driving the scraper 14 to scrape off the egg yolk powder particles adhering to the surface of the atomizing nozzle 11, as well as some droplets that have just adhered to the surface of the atomizing nozzle 11 and have not yet dried.

[0064] When the scraper 14 rotates to the position where it abuts against the top of the absorbent pad 21 and the pressure plate 171, the scraper 14 is on the side of the barrier plate 165 near the pressure plate 171, and the end of the baffle 15 away from the scraper 14 rotates to the position aligned with the bottom of the support frame 12. At this time, the pressure plate 171, the liquid storage bladder 176, the scraper 14, the support frame 12 and the baffle 15 work together to form a rinsing space above the drain trough 181. When the scraper 14 continues to rotate, it will apply pressure downward to the pressure plate 171, causing the pressure plate 171 to rotate downward to compress the liquid storage bladder 176, so that the alkaline solvent in the liquid storage bladder 176 enters the guide trough 174 and opens the first one-way valve 175 and sprays out through the spray nozzle 173 to rinse the scraper 14 and wash away the relatively loose egg yolk powder particles on the scraper 14. At the same time, since the alkaline solvent can soften the egg yolk liquid and reduce its viscosity, it is easier to rinse away.

[0065] During the process of scraper 14 and pressure plate 171 coming into contact, scraper 14 will first come into contact with scraper 203 and squeeze scraper 203, causing it to slide towards the elastic member 202 and compress the elastic member 202. Since scraper 203 is in contact with the surface of scraper 14, as pressure plate 171 rotates downward and washes scraper 14, scraper 203 will scrape off the softened but not washed away relatively stubborn egg yolk liquid and egg yolk powder particles along the surface of scraper 14. At the same time, the alkaline solvent sprayed from nozzle 173 will splash in all directions after hitting scraper 14, washing away the egg yolk liquid and egg yolk powder particles scraped off by scraper 203.

[0066] All the components that are rinsed off will fall from the rinsing space into the drain tank 181, and under the negative pressure of the negative pressure pump 183, they will be discharged from the drain tank 181 through the drain pipe 182.

[0067] Finally, after the scraper 14 is rinsed with alkaline solvent and cleaned by the scraper 203, the absorbent pad 21, which is against the scraper 14, will directly contact the small amount of alkaline liquid remaining on the scraper 14, absorbing and chemically neutralizing it. Silica, as an acidic oxide, reacts with the residual alkaline solvent to generate silicates and water, converting the alkaline liquid into a neutral solid or a high-viscosity substance. The porous structure of the absorbent pad 21 quickly adsorbs the neutralized silicates and unreacted residues through capillary action, forming a stable gel-like substance. The water in the gel evaporates quickly, and the neutralized silicates are non-flowing, preventing them from spreading to the scraper or nozzle surface, ensuring thorough cleaning and avoiding corrosion or contamination of the equipment by liquid residue.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A horizontal spray drying device for egg yolk powder, characterized in that: include, The cleaning component includes a drying equipment body (10), inside which is provided an atomizing nozzle (11) for spraying atomized egg yolk liquid. A support frame (12) is fixedly connected to the atomizing nozzle (11), and a scraper (14) for cleaning the nozzle end of the atomizing nozzle (11) is rotatably connected to the support frame (12). Inside the support frame (12) is a transmission assembly (13) for driving the scraper (14) to rotate. (14) is fixedly connected to a baffle (15), and the atomizing nozzle (11) is provided with a blocking component (16) for closing the nozzle end of the atomizing nozzle (11). The support frame (12) is provided with a flushing component (17) for spraying alkaline solvent to flush the scraper (14). The support frame (12) is provided with a discharge component (18) for discharging waste liquid. The support frame (12) is fixedly connected with a limiting plate (19) for limiting the pressure plate (171). The scraping component includes a scraping component disposed within the rinsing assembly (17) for scraping off egg yolk liquid from the scraper (14), wherein the rinsing assembly (17) is provided with an absorbent pad (21) for absorbing alkaline solvent adhering to the scraper (14). The main body (10) of the drying equipment includes a heating fan (101), a drying chamber (102) is provided on the side of the heating fan (101), a gas-solid separator (103) is provided on the side of the drying chamber (102) away from the heating fan (101), an infusion tank (104) is provided above the drying chamber (102), a centrifugal atomizer (105) is provided below the infusion tank (104), the centrifugal atomizer (105) is located between the drying chamber (102) and the infusion tank (104), the bottom of the centrifugal atomizer (105) is connected to the atomizing nozzle (11), and the atomizing nozzle (11) extends through the top of the drying chamber (102) to the interior of the drying chamber (102); The flushing assembly (17) includes a pressure plate (171) rotatably connected to a support frame (12). A spiral spring (172) is provided inside one end of the pressure plate (171). A spray port (173) is provided at the end of the pressure plate (171) away from the spiral spring (172). A flow guide groove (174) is provided inside the pressure plate (171). A first one-way valve (175) is provided inside the flow guide groove (174). A liquid storage bladder (176) is provided below the pressure plate (171). A second one-way valve (178) is provided below the liquid storage bladder (176). An infusion tube (177) is provided below the second one-way valve (178). An infusion set (179) is provided at the end of the infusion tube (177) away from the second one-way valve (178). The injection port (173) communicates with the interior of the reservoir (176) through the guide groove (174). The bottom of the reservoir (176) is fixedly connected to the support frame (12), and the top of the reservoir (176) is fixedly connected to the bottom of the pressure plate (171). The support frame (12) has an infusion hole, and the second one-way valve (178) is located inside the infusion hole. The infusion tube (177) communicates with the interior of the reservoir (176) through the infusion hole. The reservoir (176) is used to store... An alkaline solvent is used. The infusion tube (177) extends through the inner wall of the drying chamber (102) to the outside of the drying chamber (102). The infusion set (179) is located above the heating fan (101). The pressure plate (171) is elastically connected to the support frame (12) through a spiral spring (172). The limiting plate (19) is located above the pressure plate (171). The bottom of the limiting plate (19) abuts against the top of the pressure plate (171). The pressure plate (171) is located on the side of the atomizing nozzle (11).

2. The horizontal spray drying equipment for egg yolk powder according to claim 1, characterized in that: The transmission assembly (13) includes a cylinder (131) disposed inside the support frame (12). A telescopic rod (132) is disposed inside the cylinder (131). A rack (133) is fixedly connected to the telescopic rod (132). A gear (134) is disposed above the rack (133). The gear (134) meshes with the rack (133). The scraper (14) is fixedly connected to the gear (134) on the side away from the baffle (15). The gear (134) is rotatably connected to the inner wall of the support frame (12). The scraper (14) and the baffle (15) are both located below the atomizing nozzle (11). The scraper (14) is provided with an inclined groove on the side near the atomizing nozzle (11). The scraper (14) is in contact with the surface of the support frame (12) on the side near the gear (134).

3. The horizontal spray drying equipment for egg yolk powder according to claim 2, characterized in that: The barrier component (16) includes an air storage bladder (162) disposed in a support frame (12), a first sliding groove (161) is provided in the support frame (12), a ventilation groove (163) is provided in the support frame (12), a second sliding groove (167) is provided inside the atomizing nozzle (11), a barrier plate (165) is slidably connected inside the atomizing nozzle (11), a folded air bladder (164) is disposed inside the barrier plate (165), and sliders (166) are fixedly connected to both sides of the barrier plate (165).

4. The horizontal spray drying equipment for egg yolk powder according to claim 3, characterized in that: The barrier plate (165) is slidably connected to the inner wall of the second slide groove (167) via the slider (166). The ventilation groove (163) extends through the inner wall of the support frame (12) to the interior of the atomizing nozzle (11). The rack (133) is slidably connected to the inner wall of the first slide groove (161). One end of the air storage bag (162) is fixedly connected to the side of the rack (133) away from the telescopic rod (132). The end of the air storage bag (162) away from the rack (133) is fixedly connected to the inner wall of the first slide groove (161). The interior of the air storage bag (162) is connected to the folding air bag (164) via the ventilation groove (163).

5. The horizontal spray drying equipment for egg yolk powder according to claim 1, characterized in that: The discharge assembly (18) includes a discharge trough (181) disposed on a support frame (12), a discharge pipe (182) disposed below the discharge trough (181), a negative pressure pump (183) disposed at the end of the discharge pipe (182) away from the discharge trough (181), a discharge hole is provided on the support frame (12), and the discharge hole is located below the discharge trough (181), the discharge trough (181) is connected to the discharge pipe (182) through the discharge hole, the negative pressure pump (183) extends through the inner wall of the drying chamber (102) to the outside of the drying chamber (102), the negative pressure pump (183) is located on the side of the infusion set (179), and the discharge trough (181) is located between the reservoir (176) and the scraper (14).

6. The horizontal spray drying equipment for egg yolk powder according to claim 1, characterized in that: The scraping assembly includes a third groove (201) formed in the pressure plate (171), an elastic element (202) is provided inside the third groove (201), and a scraper (203) is slidably connected inside the third groove (201).

7. The horizontal spray drying equipment for egg yolk powder according to claim 6, characterized in that: The scraper (203) is elastically connected to the inner wall of the third groove (201) through the elastic element (202). The end of the scraper (203) away from the elastic element (202) extends through the inner wall of the third groove (201) to the side of the pressure plate (171) near the atomizing nozzle (11). The third groove (201) is located above the spray nozzle (173). The bottom of the absorbent pad (21) is fixedly connected to the top of the pressure plate (171). The absorbent pad (21) is located on the side of the limiting plate (19) near the atomizing nozzle (11). The absorbent pad (21) is located above the third groove (201). The absorbent pad (21) is made of silicon dioxide. The scraper (203) is made of smooth alkali-resistant material. The dimensions of the absorbent pad (21) and the scraper (203) on the side near the atomizing nozzle (11) are both adapted to the cross-sectional dimensions of the scraper (14).

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