A kind of drying device for producing skin-friendly powder

Abstract

The utility model relates to a kind of skin-friendly powder production technology field, disclose a kind of drying device for skin-friendly powder production, including spray dryer main part and the air inlet pipe being set in the air inlet input end of spray dryer main part, the top of the spray dryer main part is fixedly connected with exhaust pipe, the inside fixed connection of the exhaust pipe has heat exchange cylinder, the inside equidistance longitudinal opening of the heat exchange cylinder has through groove one. The utility model is equipped with heat exchange cylinder in exhaust pipe, by high-temperature steam and cooling liquid heat exchange, by circulating water pump let heating cooling liquid heat exchange block for air inlet pipe heat supply, realize air preheating, recover steam waste heat, reduce energy consumption, reduce high-temperature high-humidity gas emission, guarantee production environment stability, adopt metal copper to improve heat exchange efficiency, spiral slot prolongs path, annular collection box exhausts condensate, sealing assembly normal sealing, negative pressure opening when air inlet, filter screen filters air, spring helps reset, improve practicality and reliability.

Description

Technical Field

[0001] This utility model relates to the field of skin-friendly powder production technology, and more specifically to a drying device for skin-friendly powder production. Background Technology

[0002] Spray dryers are commonly used drying devices in the production of skin-friendly powders. Their core function is to atomize the raw material liquid into tiny droplets, which are then rapidly exposed to hot air, causing the moisture to evaporate instantly and resulting in a dried powder product. This process effectively preserves the active ingredients and delicate texture of the skin-friendly powder, making it widely used in cosmetics, pharmaceuticals, and other fields. The specific working principle is as follows: An atomizer disperses the raw material liquid of the skin-friendly powder into tiny droplets with diameters ranging from a few micrometers to tens of micrometers, thereby increasing the contact area between the droplets and the hot air. The atomized droplets are then thoroughly mixed and contacted with the hot air entering the drying tower. The hot air provides the heat required for moisture evaporation, allowing the moisture in the droplets to evaporate rapidly in a short time, solidifying the droplets into dry powder particles. The dried powder is then carried by the airflow into a separator (such as a cyclone separator or bag filter), separated from the air, and collected, ultimately yielding the skin-friendly powder product.

[0003] However, in actual production, during atomization and high-temperature evaporation, the steam is directly discharged through the top of the equipment (for example, a combined circulating spray dryer disclosed in patent CN223096149U). This heat is not effectively utilized, resulting in a waste of resources. At the same time, the direct discharge of high-temperature and high-humidity steam into the workshop will cause the workshop humidity to rise, which may lead to a series of problems such as equipment rusting and electrical component failure. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a drying device for the production of skin-friendly powder, so as to solve the problems existing in the background art.

[0005] The utility model provides the following technical solution: a drying device for producing skin-friendly powder, comprising a spray dryer body and an air inlet pipe disposed at the air inlet end of the spray dryer body, an exhaust pipe fixedly connected to the top of the spray dryer body, a heat exchange cylinder fixedly connected inside the exhaust pipe, a through groove 1 equidistantly opened and closed inside the heat exchange cylinder, a heat exchange groove 1 equidistantly opened and closed inside the exhaust pipe, a water inlet pipe fixedly connected to the input end of the heat exchange groove 1, a circulating water pump installed at the output end of the heat exchange groove 1, a water outlet pipe installed at the input end of the circulating water pump, a heat exchange block fixedly connected inside the air inlet pipe, a through groove 2 equidistantly opened laterally inside the heat exchange block, a sealing component installed at the input end of the through groove 2, a heat exchange groove 2 opened inside the heat exchange block, a water inlet pipe fixedly connected to one end of the heat exchange groove 2 at the end face away from the exhaust pipe, and a water outlet pipe fixedly connected to the other end of the heat exchange groove 2 at the end face away from the circulating water pump.

[0006] Furthermore, the exhaust pipe, the first through groove, and the heat exchange block are all made of copper, and the first and second heat exchange grooves are both spiral-shaped.

[0007] Furthermore, an annular collection box is fixedly connected to the bottom of the exhaust pipe, a drain pipe is fixedly connected to the surface of the annular collection box, and a conical groove is provided at the bottom of the through groove one.

[0008] Furthermore, the bottom of the exhaust pipe extends into the interior of the spray dryer body, and a vent pipe communicating with the interior of the exhaust pipe is fixedly connected to the top of the exhaust pipe. A fan is sealed and fixedly installed inside the vent pipe.

[0009] Furthermore, the sealing assembly includes a fixed sleeve fixedly connected inside the heat exchange block. A filter screen and a fixed ring are fixedly connected inside the fixed sleeve. A slider is slidably connected inside the fixed ring. A connecting rod is fixedly connected to the surface of the slider. A sealing plate is fixedly connected to the end face of the connecting rod away from the slider. An air inlet groove is opened at the end of the fixed ring away from the filter screen. A spring is movably installed on the outer surface of the connecting rod. The outer surface of the sealing plate is slidably sealed to the inner wall of the fixed ring. The diameter of the fixed ring is smaller than the diameter of the air inlet groove.

[0010] Furthermore, the interior of the second through groove is connected to the interior of the air intake groove, and the connecting rod is "Z" shaped. Under normal conditions, the slider slides away from the air intake groove due to the elasticity of the spring.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model utilizes a heat exchange cylinder installed inside the exhaust pipe to exchange heat between high-temperature steam and the coolant in heat exchange tank one. Simultaneously, a circulating water pump circulates the heated coolant in heat exchange tank two to heat the heat exchange blocks in the air inlet pipe, thus preheating the air entering the spray dryer. This fully recovers and utilizes the waste heat in the steam, greatly improving energy efficiency and reducing energy costs. Furthermore, after the high-temperature steam is cooled by the heat exchange, the amount of high-temperature and high-humidity gas directly emitted into the workshop is reduced, effectively avoiding problems such as equipment rusting and electrical component failure caused by increased workshop humidity, and ensuring the stability of the production environment.

[0013] 2. In this utility model, the exhaust pipe, the first through groove, and the heat exchange block are made of copper, which improves the heat exchange efficiency due to its good thermal conductivity. The spiral heat exchange grooves one and two extend the flow path of the coolant, further improving the heat exchange effect. The annular collection box can effectively collect steam condensate and discharge it through the drain pipe, avoiding the backflow of condensate from affecting the equipment or product. The sealing component remains sealed under normal conditions and automatically opens under negative pressure when air is intake, which not only ensures the smooth intake of air but also filters the air through the filter screen to prevent impurities from entering and affecting the quality of the skin-friendly powder. At the same time, the spring setting can automatically reset the seal when the intake stops, improving the practicality and reliability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a longitudinal sectional view of the exhaust pipe in this utility model;

[0016] Figure 3 This is a longitudinal sectional view of the air intake pipe of this utility model;

[0017] Figure 4 This is a cross-sectional view of the sealing component in this utility model.

[0018] The attached diagram is labeled as follows: 1. Main body of the spray dryer; 2. Air inlet pipe; 3. Exhaust pipe; 4. Heat exchange cylinder; 5. Through-slot one; 6. Annular collection box; 7. Drain pipe; 8. Heat exchange tank one; 9. Circulating water pump; 10. Water outlet pipe; 11. Water inlet pipe; 12. Vent pipe; 13. Fan; 14. Heat exchange block; 15. Through-slot two; 16. Sealing assembly; 161. Fixing sleeve; 162. Filter screen; 163. Fixing ring; 164. Slider; 165. Connecting rod; 166. Sealing plate; 167. Air inlet slot; 168. Spring; 17. Heat exchange tank two. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0020] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0021] A drying device for producing skin-friendly powder includes a spray dryer body 1 and an air inlet pipe 2 disposed at the air inlet end of the spray dryer body 1. An exhaust pipe 3 is fixedly connected to the top of the spray dryer body 1. A heat exchange cylinder 4 is fixedly connected inside the exhaust pipe 3. The heat exchange cylinder 4 has longitudinally open and closed through grooves 5 at equal intervals inside. A heat exchange groove 8 is open and closed inside the exhaust pipe 3. A water inlet pipe 11 is fixedly connected to the inlet end of the heat exchange groove 8. A circulating water pump 9 is installed at the outlet end of the heat exchange groove 8. A water outlet pipe 10 is installed at the inlet end of the circulating water pump 9. A heat exchange block 14 is fixedly connected inside the air inlet pipe 2. A second through groove 15 is transversely open and closed at equal intervals inside the heat exchange block 14. A sealing component 16 is installed at the inlet end of the second through groove 15. A second heat exchange groove 17 is opened inside the heat exchange block 14. The end face of the water inlet pipe 11 away from the exhaust pipe 3 is fixedly connected to one end of the second heat exchange groove 17. The end face of the water outlet pipe 10 away from the circulating water pump 9 is fixedly connected to the other end of the second heat exchange groove 17.

[0022] In this implementation scheme, the high-temperature steam in the exhaust pipe 3 exchanges heat with the coolant in the heat exchange tank 8. The heated coolant is driven by the circulating water pump 9 and circulates in the heat exchange tank 17 to heat the heat exchange block 14 in the air inlet pipe 2, thereby preheating the air entering the spray dryer body 1, fully recovering the waste heat of the steam, and reducing energy consumption. At the same time, the high-temperature steam is cooled and discharged, reducing the high-temperature and high-humidity gas in the workshop, avoiding equipment rust and electrical component failure, and ensuring a stable production environment.

[0023] Specifically, the exhaust pipe 3, through groove 5 and heat exchange block 14 are all made of copper, and heat exchange groove 8 and heat exchange groove 17 are both spiral.

[0024] In this embodiment, metallic copper has excellent thermal conductivity, which can accelerate the heat transfer speed of exhaust pipe 3, through groove 5 and heat exchange block 14, and improve heat exchange efficiency; the spiral heat exchange groove 8 and heat exchange groove 17 extend the flow path of the coolant, increase the heat exchange time, further enhance the heat exchange effect, and improve energy utilization.

[0025] Specifically, an annular collection box 6 is fixedly connected to the bottom of the exhaust pipe 3, and a drain pipe 7 is fixedly connected to the surface of the annular collection box 6. A conical groove is opened at the bottom of the through groove 5.

[0026] In this embodiment, the annular collection box 6 can collect water droplets formed by steam condensation in the through groove 5. The conical groove guides the condensate to flow smoothly into the annular collection box 6 and then discharges it through the drain pipe 7, preventing the condensate from flowing back into the spray dryer body 1 and avoiding affecting the powder quality and equipment operation.

[0027] Specifically, the bottom of the exhaust pipe 3 extends into the interior of the spray dryer body 1, and the top of the exhaust pipe 3 is fixedly connected to a ventilation pipe 12 that communicates with the interior of the exhaust pipe 3. A fan 13 is sealed and fixedly installed inside the ventilation pipe 12.

[0028] In this embodiment, the bottom of the exhaust pipe 3 extends into the interior of the spray dryer body 1, which facilitates the rapid extraction of high-temperature steam from the interior; the operation of the fan 13 generates negative pressure, which accelerates the flow of steam in the exhaust pipe 3 and the ventilation pipe 12, improves the steam discharge efficiency, and ensures that the heat exchange process continues to be stable.

[0029] Specifically, the sealing assembly 16 includes a fixed sleeve 161 fixedly connected inside the heat exchange block 14. A filter screen 162 and a fixed ring 163 are fixedly connected inside the fixed sleeve 161. A slider 164 is slidably connected inside the fixed ring 163. A connecting rod 165 is fixedly connected to the surface of the slider 164. A sealing plate 166 is fixedly connected to the end face of the connecting rod 165 away from the slider 164. An air inlet groove 167 is opened at the end of the fixed ring 163 away from the filter screen 162. A spring 168 is movably installed on the outer surface of the connecting rod 165. The outer surface of the sealing plate 166 is slidably sealed to the inner wall of the fixed ring 163. The diameter of the fixed ring 163 is smaller than the diameter of the air inlet groove 167.

[0030] In this implementation scheme, under normal conditions, spring 168 pushes sealing plate 166 to seal fixing ring 163 to prevent unfiltered air from entering; when air is intake, negative pressure pushes sealing plate 166 to move, opening the air intake channel to ensure smooth air intake and prevent external impurities from falling into the through groove 2 15 when not in operation, which would cause them to mix in and affect the quality of skin-friendly powder during operation, thus improving the sealing performance and reliability of the device.

[0031] Specifically, the interior of the second through slot 15 is connected to the interior of the air intake slot 167. The connecting rod 165 is "Z" shaped. Under normal conditions, the elasticity of the spring 168 causes the slider 164 to slide away from the air intake slot 167.

[0032] In this embodiment, the second through slot 15 is connected to the air inlet slot 167 to ensure that external air enters smoothly after being treated; the "Z"-shaped connecting rod 165 can flexibly transmit the movement of the slider 164. Under normal conditions, the spring 168 keeps the slider 164 away from the air inlet slot 167 to maintain a sealed state. After the air intake stops, it quickly resets to ensure that the air intake of the device is controllable and the seal is reliable.

[0033] The working principle and usage process of this utility model are as follows: When in use, by starting the fan 13, the high-temperature steam generated inside the spray dryer body 1 is drawn into the heat exchange cylinder 4 and flows into the air pipe 12 through the first channel 5. When the high-temperature steam flows in the first channel 5, it exchanges heat with the heat exchange cylinder 4. At the same time, by starting the circulating water pump 9, the coolant inside the first channel 5, the outlet pipe 10, the second heat exchange tank 17 and the inlet pipe 11 circulates and exchanges heat with the heat exchange cylinder 4. After the coolant is heated, it conducts heat to the heat exchange block 14 through the flow inside the second heat exchange tank 17. Therefore, the air at the air inlet end of the spray dryer body 1 is preheated by the heat exchange block 14 before entering the spray dryer body 1 for heating. The water condensed inside and on the surface of the heat exchange cylinder 4 flows down along the inner wall of the heat exchange cylinder 4 and is finally collected in the annular collection box 6 and discharged through the drain pipe 7.

[0034] Because the sealing assembly 16 seals the inside of the second channel 15, when air enters the air inlet of the spray dryer body 1, the inside of the second channel 15 will first be in a negative pressure state, and then drive the sealing plate 166 to slide to the right. When the sealing plate 166 drives the slider 164 to slide to the right through the connecting rod 165, the spring 168 is in a negative pressure state. When the sealing plate 166 slides to the position of the air inlet groove 167, the external air hole is filtered by the filter screen 162 and enters the inside of the fixing ring 163. Then it passes through the gap between the sealing plate 166 and the fixing ring 163 and enters the inside of the second channel 15. Then it enters the air inlet of the spray dryer body 1 through the second channel 15 for heating.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A drying device for producing skin-friendly powder, comprising a spray dryer body (1) and an air inlet pipe (2) disposed at the air inlet end of the spray dryer body (1), characterized in that: An exhaust pipe (3) is fixedly connected to the top of the spray dryer body (1). A heat exchange cylinder (4) is fixedly connected inside the exhaust pipe (3). A through groove (5) is opened and closed longitudinally at equal intervals inside the heat exchange cylinder (4). A heat exchange trough (8) is opened and closed inside the exhaust pipe (3). A water inlet pipe (11) is fixedly connected to the input end of the heat exchange trough (8). A circulating water pump (9) is installed at the output end of the heat exchange trough (8). A water outlet pipe (10) is installed at the input end of the circulating water pump (9). A heat exchange block (14) is fixedly connected inside the air inlet pipe (2). The heat exchange block (14) has two transverse slots (15) equidistantly opened inside. A sealing component (16) is installed at the input end of the two slots (15). A heat exchange groove (17) is opened inside the heat exchange block (14). The end face of the water inlet pipe (11) away from the exhaust pipe (3) is fixedly connected to one end of the heat exchange groove (17). The end face of the water outlet pipe (10) away from the circulating water pump (9) is fixedly connected to the other end of the heat exchange groove (17).

2. The drying apparatus for producing skin-friendly powder according to claim 1, characterized in that: The exhaust pipe (3), through groove one (5) and heat exchange block (14) are all made of copper metal, and the heat exchange groove one (8) and heat exchange groove two (17) are both spiral.

3. The drying apparatus for producing skin-friendly powder according to claim 1, characterized in that: The bottom of the exhaust pipe (3) is fixedly connected to an annular collection box (6), and the surface of the annular collection box (6) is fixedly connected to a drain pipe (7). The bottom of the through groove (5) is provided with a conical groove.

4. The drying apparatus for producing skin-friendly powder according to claim 1, characterized in that: The bottom of the exhaust pipe (3) extends into the interior of the spray dryer body (1), and the top of the exhaust pipe (3) is fixedly connected to a ventilation pipe (12) that communicates with the interior of the exhaust pipe (3). A fan (13) is sealed and fixedly installed inside the ventilation pipe (12).

5. A drying apparatus for producing skin-friendly powder according to claim 1, characterized in that: The sealing assembly (16) includes a fixed sleeve (161) fixedly connected inside the heat exchange block (14). A filter screen (162) and a fixed ring (163) are fixedly connected inside the fixed sleeve (161). A slider (164) is slidably connected inside the fixed ring (163). A connecting rod (165) is fixedly connected to the surface of the slider (164). A sealing plate (166) is fixedly connected to the end face of the connecting rod (165) away from the slider (164). An air inlet groove (167) is opened at the end of the fixed ring (163) away from the filter screen (162). A spring (168) is movably installed on the outer surface of the connecting rod (165). The outer surface of the sealing plate (166) is slidably sealed to the inner wall of the fixed ring (163). The diameter of the fixed ring (163) is smaller than the diameter of the air inlet groove (167).

6. A drying apparatus for producing skin-friendly powder according to claim 5, characterized in that: The interior of the second through slot (15) is connected to the interior of the air inlet slot (167). The connecting rod (165) is "z" shaped. Under normal conditions, the slider (164) slides away from the air inlet slot (167) due to the elasticity of the spring (168).

Images