A drying device for spore powder processing

Abstract

The utility model relates to spore powder production technical field, and disclose a kind of drying device for spore powder processing, including drying barrel, the top inner wall of drying barrel is penetrated and rotationally installed with feed pipe, the inside of drying barrel is provided with drying chamber, the top inner wall of drying chamber is rotationally installed with shower nozzle, the inside of drying barrel is provided with the spray assembly of the expansion spore powder slurry spray range. The spray assembly is set, effectively solve the problem that traditional fixed shower nozzle atomization range is limited, slurry is easily caused local accumulation, by driving motor gear transmission system, make shower nozzle realize compound motion in drying chamber, that is, around feed pipe axis revolution while autorotation, so that slurry is multi-angle, large-scale spray in the form of rotary atomization from multiple discharge grooves, not only significantly expand the spray coverage area, also improve the dispersion uniformity of slurry, effectively prevent local humidity too large, improve the drying efficiency of spore powder and finished product quality.

Description

Technical Field

[0001] This utility model relates to the field of spore powder production technology, specifically a drying device for spore powder processing. Background Technology

[0002] Spray drying is the most widely used process in the liquid forming and drying industry. It is best suited for producing powdered and granular solid products from solution, emulsion, suspension and paste liquid raw materials. Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet precise standards.

[0003] According to a public notice (Announcement No.: CN219922061U) of a spray drying device for spore powder production, the above application describes a preheating box fixedly installed on the top of a protective barrel. When the material is conveyed from one end of the preheating box to the other end into the drying barrel through a preheating pipe, the material in the preheating pipe can be preheated, which can make the material fully dry and improve production quality and efficiency.

[0004] However, in actual use, the nozzle and spray nozzle positions are relatively fixed, which limits the atomization range of the spore powder slurry sprayed outward under pressure. This can easily lead to accumulation in localized areas within the equipment, making the spore powder susceptible to the humidity of the atomization area and reducing the drying effect. Therefore, we propose a drying device for spore powder processing. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for processing spore powder, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drying device for processing spore powder, comprising a drying barrel, wherein a feed pipe is rotatably installed through the top inner wall of the drying barrel, a drying chamber is provided inside the drying barrel, a nozzle is rotatably installed on the top inner wall of the drying chamber, a discharge port is provided on the bottom side of the drying barrel, and a spray assembly for expanding the spray range of the spore powder slurry is provided inside the drying barrel; The spray assembly includes a drive motor, which is fixedly mounted on the top outer wall of the drying barrel. A drive gear is fixedly mounted on the output end of the drive motor. A driven gear is fixedly mounted through the outer wall of the feed pipe. An internal gear ring is fixedly mounted on the bottom outer wall of the feed pipe. A pinion is rotatably mounted on the bottom inner wall of the nozzle. An external gear ring is fixedly mounted on the inner wall of the nozzle. A disc is fixedly mounted through the outer wall of the feed pipe. An inclined plate is fixedly mounted on the bottom outer wall of the disc. A discharge groove is formed on the side wall of the nozzle.

[0007] Preferably, the bottom inner wall of the nozzle has a circular cavity with a diameter that matches the outer diameter of the outer toothed ring, and both the pinion and the inner toothed ring are disposed in the circular cavity. The two sides of the pinion mesh with the inner toothed ring and the outer toothed ring respectively to achieve transmission.

[0008] Preferably, the top surface of the disc is in contact with the top inner surface of the nozzle, and the bottom surface of the inclined plate is in contact with the bottom inner surface of the nozzle.

[0009] Preferably, the discharge trough is arranged in an arc shape in the horizontal direction, and the end face of the discharge trough is arranged in an inclined shape. The number of discharge troughs is set to several, and the several discharge troughs are evenly distributed in a circumferential array on the arc-shaped outer surface of the nozzle.

[0010] Preferably, the inclination direction of the inclined plate is opposite to the direction of the arc-shaped opening of the discharge chute.

[0011] Preferably, the top of the drying barrel is provided with an air jet assembly, which includes an air pump. The air pump is fixedly installed on the top surface of the drying barrel, and an annular belt is fixedly installed on the top inner surface of the drying chamber. The output end of the air pump is connected to the inside of the annular belt through a flexible tube.

[0012] Preferably, the annular belt is coaxially arranged with the nozzle and is located on the outside of the nozzle. The lower surface of the annular belt is provided with a plurality of air jets in a circumferential array.

[0013] Compared with the prior art, the present invention provides a drying device for processing spore powder, which has the following beneficial effects: 1. The drying device for spore powder processing is equipped with a spray component that effectively solves the problems of limited atomization range and easy local accumulation of slurry caused by traditional fixed nozzles. Through the drive motor driving the gear transmission system, the nozzle achieves compound motion in the drying chamber, that is, it rotates on its own axis and revolves around the axis of the feed pipe. This allows the slurry to be sprayed out from multiple discharge troughs in a multi-angle and wide-range manner in a rotating atomization manner. This not only significantly expands the spray coverage area, but also improves the dispersion uniformity of the slurry, effectively prevents excessive local humidity, and improves the drying efficiency and finished product quality of spore powder.

[0014] 2. This spore powder processing drying device optimizes the hot air distribution and drying efficiency within the drying chamber through its air jet assembly. Hot air is delivered to the annular belt via an air pump, and an annular hot air curtain surrounding the nozzle is formed by the evenly distributed air jet nozzles on its lower surface. This coaxially arranged hot air flow can comprehensively and evenly envelop the atomized slurry sprayed from the nozzle, greatly increasing the effective contact area between the hot air and the material, accelerating moisture evaporation, and preventing localized moisture accumulation. This significantly improves the drying speed and product consistency, ensuring the drying effect of the spore powder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a partial structural diagram of the nozzle of this utility model; Figure 4 This is a cross-sectional view of the nozzle structure of this utility model; Figure 5 This utility model Figure 4 A magnified structural diagram of region A in the middle.

[0016] In the diagram: 1. Drying barrel; 2. Feed pipe; 3. Nozzle; 4. Drying chamber; 5. Discharge port; 6. Spray assembly; 61. Drive motor; 62. Drive gear; 63. Driven gear; 64. Internal gear ring; 65. Pinion; 66. External gear ring; 67. Disc; 68. Inclined plate; 69. Discharge chute; 7. Air jet assembly; 71. Air pump; 72. Annular belt. Detailed Implementation

[0017] like Figures 1-5 As shown, this utility model provides a technical solution: a drying device for processing spore powder, including a drying barrel 1, a feed pipe 2 that is rotatably installed through the top inner wall of the drying barrel 1, a drying chamber 4 that is opened inside the drying barrel 1, a nozzle 3 that is rotatably installed on the top inner wall of the drying chamber 4, a discharge port 5 that is opened on the bottom side of the drying barrel 1, and a spray assembly 6 that expands the spray range of the spore powder slurry is provided inside the drying barrel 1.

[0018] The spray assembly 6 includes a drive motor 61, which is fixedly installed on the top outer wall of the drying barrel 1. A drive gear 62 is fixedly installed at the output end of the drive motor 61. A driven gear 63 is fixedly installed through the outer wall of the feed pipe 2. An internal gear ring 64 is fixedly installed on the bottom outer wall of the feed pipe 2. A pinion 65 is rotatably installed on the bottom inner wall of the nozzle 3. An external gear ring 66 is fixedly installed on the inner wall of the nozzle 3. A disc 67 is fixedly installed through the outer wall of the feed pipe 2. An inclined plate 68 is fixedly installed on the bottom outer wall of the disc 67. A discharge groove 69 is opened on the side wall of the nozzle 3.

[0019] The drive motor 61 drives the drive gear 62 to rotate, which in turn drives the driven gear 63 to rotate the feed pipe 2. The feed pipe 2 drives the internal gear ring 64 to rotate. The internal gear ring 64 meshes with the pinion 65 for transmission. The pinion 65 also meshes with the external gear ring 66, so that the nozzle 3 achieves compound rotation in the drying chamber 4, thereby driving the discharge trough 69 to spray spore powder slurry at multiple angles, expanding the spray range, avoiding local accumulation, and improving drying uniformity and efficiency.

[0020] The bottom inner wall of the nozzle 3 has a circular cavity with a diameter that matches the outer diameter of the outer toothed ring 66. The pinion 65 and the inner toothed ring 64 are both located in the circular cavity. The two sides of the pinion 65 mesh with the inner toothed ring 64 and the outer toothed ring 66 respectively to achieve transmission.

[0021] The pinion 65 meshes with both the internal gear ring 64 and the external gear ring 66 within the circular cavity, forming a planetary gear transmission structure. This enables the nozzle 3 to revolve while rotating on its own axis, thereby enhancing the coverage area and atomization effect of the spray and effectively preventing the slurry from accumulating inside the nozzle 3.

[0022] The top surface of the disc 67 is in contact with the top inner surface of the nozzle 3, and the bottom surface of the inclined plate 68 is in contact with the bottom inner surface of the nozzle 3.

[0023] The inclined plate 68 guides the slurry flow to the discharge trough 69, ensuring that the slurry is evenly distributed and stably sprayed out from the discharge trough 69. At the same time, the circular motion of the inclined plate 68 can also disperse the slurry in the nozzle 3, improving the dispersion uniformity of the spore powder slurry.

[0024] The discharge trough 69 is arranged in an arc shape in the horizontal direction, and the end face of the discharge trough 69 is set in an inclined shape. There are several discharge troughs 69, and the several discharge troughs 69 are evenly distributed in a circumferential array on the arc-shaped outer surface of the nozzle 3.

[0025] The arc-shaped and inclined discharge trough 69 creates a rotating atomization effect when the slurry is sprayed out, enhancing the uniformity of atomization. The circumferential distribution of multiple discharge troughs 69 further expands the spray range and improves drying efficiency.

[0026] The inclination direction of the inclined plate 68 is opposite to the direction of the arc-shaped opening of the discharge chute 69.

[0027] The inclined direction of the inclined plate 68 is opposite to the opening direction of the discharge trough 69, forming convection guidance, enhancing the fluidity and mixing effect of the slurry inside the nozzle 3, avoiding slurry stagnation, and ensuring continuous and uniform spraying.

[0028] A jet assembly 7 is provided on the top of the drying barrel 1. The jet assembly 7 includes an air pump 71, which is fixedly installed on the top surface of the drying barrel 1. An annular belt 72 is fixedly installed on the top inner surface of the drying chamber 4. The output end of the air pump 71 is connected to the inside of the annular belt 72 through a hose.

[0029] The jet assembly 7 delivers hot air or dry gas to the annular belt 72 via the air pump 71. The annular belt 72 has jet nozzles evenly distributed to form an annular airflow curtain, which enhances the airflow circulation in the drying chamber 4 and accelerates the drying process of the spore powder slurry droplets.

[0030] The annular belt 72 is coaxially arranged with the nozzle 3 and is located on the outside of the nozzle 3. The lower surface of the annular belt 72 has several air jets arranged in a circumferential array.

[0031] The annular belt 72 is coaxially arranged with the nozzle 3, and the air jets are distributed circumferentially to form a uniform annular airflow that surrounds the atomized slurry sprayed from the nozzle 3, thereby increasing the contact area between the hot air and the droplets and improving the drying efficiency, while preventing moisture accumulation.

[0032] Working principle: The spore powder slurry enters the nozzle 3 at the top of the drying chamber 4 through the feed pipe 2. The drive motor 61 is started, driving the drive gear 62 at its output end to rotate. The drive gear 62 meshes with the driven gear 63 fixed to the outer wall of the feed pipe 2, thereby driving the feed pipe 2 to rotate. This planetary gear transmission mechanism causes the nozzle 3 to generate a compound motion within the drying chamber 4, that is, while rotating around its own axis, its center also revolves around the axis of the feed pipe 2. Simultaneously, the slurry inside the nozzle 3 is subjected to centrifugal force during rotation. The disc 67 fixed to the outer wall of the feed pipe 2 and the inclined plate 68 connected to its bottom rotate together with the feed pipe 2. When the inclined plate 68 rotates, it can effectively guide and stir the slurry, enhance its fluidity, prevent the slurry from stagnating or accumulating in the nozzle 3, and ensure that the slurry is evenly guided to each discharge chute 69. The slurry is finally thrown out through the multiple discharge chute 69s that are inclined and arc-shaped. Due to the compound movement of the nozzle 3, the slurry can be atomized and sprayed out from multiple angles and over a wide range, which significantly expands the spray coverage area and avoids local accumulation in the drying chamber 4. At the same time, the jet assembly 7 located at the top of the drying barrel 1 is activated. The air pump 71 pumps hot air or drying gas through a hose into the annular belt 72 fixed on the inner surface of the top of the drying chamber 4. The annular belt 72 is coaxially arranged with the nozzle 3 and located on its outer side. The hot air sprayed downward from the jet nozzle forms a uniform, surrounding annular hot air curtain. This hot air curtain immediately comes into full contact with the atomized slurry droplets sprayed from the nozzle 3. This coaxial surrounding heating method greatly increases the contact area and efficiency between the hot air and the material, which can quickly evaporate the moisture in the droplets, accelerate the drying process, and effectively dissipate local moisture to prevent it from affecting the drying effect. Finally, the dried spore powder particles fall to the bottom of the drying barrel 1 under the action of gravity and are discharged and collected through the discharge port 5 on the side.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A drying device for processing spore powder, comprising a drying barrel (1), wherein a feed pipe (2) is rotatably installed through the top inner wall of the drying barrel (1), a drying chamber (4) is provided inside the drying barrel (1), a nozzle (3) is rotatably installed on the top inner wall of the drying chamber (4), and a discharge port (5) is provided on the bottom side of the drying barrel (1), characterized in that: The drying barrel (1) is equipped with a spray assembly (6) to expand the spray range of the spore powder slurry. The spray assembly (6) includes a drive motor (61), which is fixedly installed on the top outer wall of the drying barrel (1). A drive gear (62) is fixedly installed at the output end of the drive motor (61). A driven gear (63) is fixedly installed through the outer wall of the feed pipe (2). An internal gear ring (64) is fixedly installed on the bottom outer wall of the feed pipe (2). A small gear (65) is rotatably installed on the bottom inner wall of the nozzle (3). An external gear ring (66) is fixedly installed on the inner wall of the nozzle (3). A disc (67) is fixedly installed through the outer wall of the feed pipe (2). An inclined plate (68) is fixedly installed on the bottom outer wall of the disc (67). A discharge groove (69) is opened on the side wall of the nozzle (3).

2. The drying apparatus for processing spore powder according to claim 1, characterized in that: The nozzle (3) has a circular cavity with a diameter that matches the outer diameter of the outer toothed ring (66) on its bottom inner wall. The pinion (65) and the inner toothed ring (64) are both located in the circular cavity. The two sides of the pinion (65) mesh with the inner toothed ring (64) and the outer toothed ring (66) respectively to achieve transmission.

3. The drying apparatus for processing spore powder according to claim 1, characterized in that: The top surface of the disc (67) is in contact with the top inner surface of the nozzle (3), and the bottom surface of the inclined plate (68) is in contact with the bottom inner surface of the nozzle (3).

4. The drying apparatus for processing spore powder according to claim 1, characterized in that: The discharge trough (69) is arranged in an arc shape in the horizontal direction, and the end face of the discharge trough (69) is arranged in an inclined shape. The number of discharge troughs (69) is set to several, and the several discharge troughs (69) are evenly distributed in a circumferential array on the arc-shaped outer surface of the nozzle (3).

5. A drying apparatus for processing spore powder according to claim 4, characterized in that: The inclination direction of the inclined plate (68) is opposite to the direction of the arc-shaped opening of the discharge trough (69).

6. The drying apparatus for processing spore powder according to claim 1, characterized in that: The top of the drying barrel (1) is provided with an air jet assembly (7), which includes an air pump (71). The air pump (71) is fixedly installed on the top surface of the drying barrel (1). An annular belt (72) is fixedly installed on the top inner surface of the drying chamber (4). The output end of the air pump (71) is connected to the inside of the annular belt (72) through a flexible hose.

7. A drying apparatus for processing spore powder according to claim 6, characterized in that: The annular belt (72) is coaxially arranged with the nozzle (3), and the annular belt (72) is located on the outside of the nozzle (3). The lower surface of the annular belt (72) is provided with a plurality of air jets in a circumferential array.

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