Centrifugal spray dryer with multiple drying chambers

Abstract

The utility model relates to drying machine technical field, and disclose centrifugal spray drier with multilayer drying chamber has drying barrel, drying barrel inner wall fixedly connected with partition, the number of partition is provided with three, three form three chambers between partition and drying barrel, three all are equipped with the blanking gap on the partition, three rotating penetration rotatory pipe on partition and drying barrel, rotatory pipe outer wall corresponds every chamber's inside all is fixedly connected with drying pipe and links with rotatory pipe inside, through the structure of connecting pipe, rotatory pipe, partition, drying pipe, air outlet, round hole, scraper and blanking gap, realized can contact raw materials fully, and improved drying effect, guarantee drying quality effect, solved the traditional drying machine only one chamber in the drying process, lead to when drying will appear partial raw material drying not completely, influence the whole drying effect problem.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a centrifugal spray dryer with multiple drying chambers. Background Technology

[0002] Centrifugal spray dryers utilize centrifugal atomizers to dry certain liquid materials and are among the most widely used dryers in industrial production. Spray drying is the most widely applied process in liquid processing and drying industries, and is best suited for producing powder from suspensions and paste-like liquid raw materials.

[0003] Chinese patent provides a centrifugal spray dryer, publication number CN219922060U, which includes a drying barrel, a centrifugal atomizer, and a fan. A frame is fixedly mounted on the drying barrel. A feed pipe is provided at the top of the drying barrel. The centrifugal sprayer is connected to the feed pipe at a position inside the drying barrel. A rotating motor is provided at the top of the drying barrel. A rotating frame is rotatably connected to the rotating motor. An air inlet pipe is connected to the fan. The air inlet pipe is connected to the rotating frame. A heater is connected to the air inlet pipe.

[0004] The aforementioned dryer facilitates the cleaning of powder adhering to the barrel wall, reducing powder waste. It can weigh the dried powder and purify the drying gas, reducing environmental pollution. However, since there is only one chamber during the drying process, some raw materials may not be completely dried, affecting the overall drying effect. Utility Model Content

[0005] The purpose of this invention is to provide a centrifugal spray dryer with multiple drying chambers to solve the problem that existing dryers only have one chamber during the drying process, which leads to some raw materials not being dried completely and affecting the overall drying effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal spray dryer with multiple drying chambers, including a drying barrel. Three partition plates are fixedly connected to the inner wall of the drying barrel, forming three chambers between the three partition plates and the drying barrel. Each of the three partition plates has a material discharge notch. A rotating tube rotatably passes through the three partition plates and the drying barrel. A drying tube is symmetrically fixedly connected to the outer wall of each rotating tube corresponding to the interior of each chamber and communicates with the interior of the rotating tube. Multiple air outlets are provided on the outer wall of each drying tube. Scrapers are fixedly connected to the top of each partition plate corresponding to the outer wall of the rotating tube. Multiple circular holes are provided at the bottom of the two upper partition plates. Multiple connecting holes are provided on the outer wall of the rotating tube corresponding to the interior of each partition plate.

[0007] Preferably, a vertical plate is fixedly connected to one side of the top of the drying barrel, and a rotating shaft is rotatably passed through the vertical plate. A bevel gear is fixedly connected to one end of the rotating shaft.

[0008] Preferably, a bevel gear one is fixedly connected to the outer wall of the rotating tube corresponding to the top of the drying barrel, and the bevel gear one and bevel gear two are meshed together.

[0009] Preferably, an L-shaped plate is fixedly connected to the other side of the top of the drying barrel, and a connecting cover is fixedly connected to the other end of the L-shaped plate. The connecting cover and the rotating tube are rotatably connected.

[0010] Preferably, a circular cover is fixedly connected to the end of the upright plate away from the second bevel gear, and a square tube is fixedly connected to the bottom end of the circular cover. The square tube and the connecting cover are connected by a connecting tube.

[0011] Preferably, the outer wall of the rotating shaft is fixedly connected to the interior of the circular cover and the square tube, and an air intake pipe is fixedly inserted through the other end of the square tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1) This centrifugal spray dryer with multi-layer drying chambers can use clean energy as a power source by cooperating with the air inlet pipe, square pipe, arc-shaped fan blades, rotating shaft, bevel gear II, bevel gear I and rotating tube, thus saving resources.

[0014] 2) This centrifugal spray dryer with multiple drying chambers can dry falling raw materials by means of connecting pipes, rotating pipes, partition plates, drying pipes, air outlets, circular holes, scrapers and material discharge notches. At the same time, the top of the partition plates can dry the raw materials again through heat transfer. Since the above operations can be performed multiple times, the drying effect can be improved and the drying quality can be guaranteed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the centrifugal spray dryer with multi-layer drying chambers according to this utility model;

[0016] Figure 2 This is a cross-sectional view of the drying drum of the centrifugal spray dryer with multi-layer drying chambers according to the present invention.

[0017] Figure 3 This is a cross-sectional view of the partition plate of the centrifugal spray dryer with multi-layer drying chambers according to the present invention;

[0018] Figure 4 This is a cross-sectional view of the circular cover and square tube of the centrifugal spray dryer with multi-layer drying chambers according to this utility model.

[0019] In the diagram: 1. Drying drum; 2. Vertical plate; 3. Air inlet pipe; 4. Rotating shaft; 5. Bevel gear one; 6. L-shaped plate; 7. Connecting cover; 8. Connecting pipe; 9. Bevel gear two; 10. Circular cover; 11. Square tube; 12. Divider plate; 13. Material discharge notch; 14. Air outlet; 15. Drying tube; 16. Scraper; 17. Rotating tube; 18. Connecting hole; 19. Arc-shaped fan blade. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Combination Figures 1-4 A centrifugal spray dryer with multiple drying chambers includes a drying barrel 1. Three partition plates 12 are fixedly connected to the inner wall of the drying barrel 1, forming three chambers between the three partition plates 12 and the drying barrel 1. Each of the three partition plates 12 has a discharge notch 13. A rotating tube 17 rotatably passes through the three partition plates 12 and the drying barrel 1. Drying tubes 15 are symmetrically fixedly connected to the outer wall of each rotating tube 17, corresponding to the interior of each chamber, and communicate with the interior of the rotating tube 17. Multiple air outlets 14 are provided on the outer wall of each drying tube 15. Scrapers 16 are fixedly connected to the top of each partition plate 12 on the outer wall of the rotating tube 17. Multiple circular holes are provided at the bottom of the two upper partition plates 12, and multiple connecting holes 18 are provided on the outer wall of the rotating tube 17 corresponding to the interior of each partition plate 12.

[0023] Specifically, the flowing hot air, while driving the arc-shaped fan blades 19 to rotate, enters the connecting cover 7 through the connecting pipe 8 from the square pipe 11, and then enters the rotating pipe 17 from the connecting cover 7. A drying pipe 15 is symmetrically fixedly connected to the outer wall of the rotating pipe 17, corresponding to the interior of each chamber, and communicates with the interior of the rotating pipe 17. The hot air entering the rotating pipe 17 enters each drying pipe 15, while some of the hot air enters the interior of the partition plate 12 through multiple connecting holes 18 through the outer wall of the rotating pipe 17 corresponding to the interior of the partition plate 12. Multiple air outlets 14 are provided on the outer wall of each drying pipe 15, and multiple circular holes are provided at the bottom of the two upper partition plates 12. The hot air is ejected through the air outlets 14 and the circular holes, forming multiple streams of hot air. At this time, raw materials are transported into the drying barrel 1 through the feed pipe (although the original text does not describe the structure of the feed pipe in detail, its existence can be reasonably inferred). The raw materials first fall onto the top of the uppermost partition plate 12. During the descent, the hot air ejected from the air outlet 14 on the uppermost drying tube 15 directly acts on the surface of the raw material, performing a preliminary drying operation. Simultaneously, due to the thermal conductivity of the partition plate 12, the temperature at the top of the partition plate 12 rises through heat transfer, further drying the raw material. The rotating tube 17 rotates the uppermost scraper 16, which contacts the top of the uppermost partition plate 12. Driven by the scraper 16, the raw material at the top of the uppermost partition plate 12 is evenly pushed, falling through the discharge notch 13 into the next chamber's partition plate 12. Since the drying drum 1 has three chambers, the raw material passes through each chamber sequentially. In each chamber, the raw material undergoes a similar drying process, being dried by the hot air ejected from the drying tube 15 during descent and simultaneously dried by heat transfer from the partition plate 12. Through this multiple drying process, the raw material receives thorough drying, improving the drying effect and ensuring the quality of the drying process.

[0024] Example 2

[0025] See Figure 1 and Figure 4 Furthermore, based on Embodiment 1, a vertical plate 2 is fixedly connected to one side of the top of the drying barrel 1. A rotating shaft 4 is rotatably connected through the vertical plate 2. A bevel gear 9 is fixedly connected to one end of the rotating shaft 4. A bevel gear 5 is fixedly connected to the outer wall of the rotating tube 17 corresponding to the top of the drying barrel 1. The bevel gear 5 and the bevel gear 9 are meshed together. An L-shaped plate 6 is fixedly connected to the other side of the top of the drying barrel 1. A connecting cover 7 is fixedly connected to the other end of the L-shaped plate 6. The connecting cover 7 and the rotating tube 17 are rotatably connected. A circular cover 10 is fixedly connected to the end of the vertical plate 2 away from the bevel gear 9. A square tube 11 is fixedly connected to the bottom end of the circular cover 10. The square tube 11 and the connecting cover 7 are connected through a connecting tube 8. Multiple arc-shaped fan blades 19 are fixedly connected to the outer wall of the rotating shaft 4 corresponding to the interior of the circular cover 10 and the square tube 11. An air inlet pipe 3 is fixedly connected to the other end of the square tube 11.

[0026] Specifically, hot air is transported into the square tube 11 through the air inlet pipe 3. As the hot air continues to flow, it forms an airflow with a certain velocity. When the flowing hot air contacts the multiple arc-shaped fan blades 19 fixedly connected to the outer wall of the rotating shaft 4, according to the principles of fluid mechanics, the hot air exerts a force on the arc-shaped fan blades 19, pushing them to rotate around the center line of the rotating shaft 4. Since the arc-shaped fan blades 19 are fixedly connected to the rotating shaft 4, the rotating shaft 4 also begins to rotate. One end of the rotating shaft 4 is fixedly connected to a bevel gear 9, and as the rotating shaft 4 rotates, the bevel gear 9 begins to rotate synchronously. Simultaneously, a bevel gear 5 is fixedly connected to the outer wall of the rotating tube 17 corresponding to the top of the drying barrel 1, and the bevel gear 5 and the bevel gear 9 are meshed. Under the rotation of the bevel gear 9, through gear meshing transmission, the bevel gear 5 begins to rotate, thereby driving the rotating tube 17 to rotate around the center line of the drying barrel 1 and the partition plate 12. This process converts the flow energy of hot gas into the rotational kinetic energy of the rotating tube 17, providing power support for subsequent raw material drying and conveying operations. It eliminates the need for additional power equipment such as motors, effectively utilizes clean energy, and saves resources.

[0027] In actual operation, hot air is first delivered into the square tube 11 through the air intake pipe 3. When the flowing hot air comes into contact with the arc-shaped fan blade 19, it will push the arc-shaped fan blade 19 to rotate around the center line of the rotating shaft 4. Therefore, it can rotate the rotating shaft 4. The rotating shaft 4 drives the second bevel gear 9 to rotate. The second bevel gear 9 drives the first bevel gear 5 and the rotating tube 17 to rotate. Therefore, clean energy can be used as a power source, which can save resources.

[0028] The flowing hot air enters the rotating tube 17 through the connecting pipe 8, and then enters the partition plate 12 and the drying tube 15 respectively, and is sprayed out through the air outlet 14 and the circular hole respectively. At the same time, the raw material is conveyed into the drying barrel 1 through the feed pipe. At this time, the raw material will first fall on the top of the uppermost partition plate 12, and when it falls, the hot air is sprayed out through the air outlet 14 on the uppermost drying tube 15, so the falling raw material can be dried. At the same time, the top of the partition plate 12 can be dried again through heat transfer. Meanwhile, the rotating tube 17 rotates with the uppermost scraper 16, so it can push the raw material on the top of the uppermost partition plate 12 to fall through the feeding notch 13. Since the drying barrel 1 is provided with three chambers, the above operation can be performed multiple times, thereby improving the drying effect and ensuring the drying quality.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal spray dryer with multiple drying chambers, comprising a drying drum (1), characterized in that: The inner wall of the drying barrel (1) is fixedly connected to a partition plate (12). There are three partition plates (12). The three partition plates (12) and the drying barrel (1) form three chambers. Each of the three partition plates (12) has a material discharge notch (13). A rotating tube (17) is rotatably passed through the three partition plates (12) and the drying barrel (1). The outer wall of the rotating tube (17) is symmetrically fixedly connected to the interior of each chamber and is connected to the interior of the rotating tube (17). The outer wall of each drying tube (15) is provided with multiple air outlets (14). The top of each partition plate (12) on the outer side of the rotating tube (17) is fixedly connected to a scraper (16). The bottom of the two upper partition plates (12) is provided with multiple circular holes. The outer wall of the rotating tube (17) is provided with multiple connecting holes (18) on the interior of each partition plate (12).

2. The centrifugal spray dryer with multi-layer drying chambers according to claim 1, characterized in that: A vertical plate (2) is fixedly connected to one side of the top of the drying barrel (1). A rotating shaft (4) is rotatably passed through the vertical plate (2). A bevel gear (9) is fixedly connected to one end of the rotating shaft (4).

3. The centrifugal spray dryer with multi-layer drying chambers according to claim 2, characterized in that: The outer wall of the rotating tube (17) is fixedly connected to the top of the drying barrel (1) with a bevel gear one (5), and the bevel gear one (5) and the bevel gear two (9) are meshed together.

4. The centrifugal spray dryer with multi-layer drying chambers according to claim 3, characterized in that: An L-shaped plate (6) is fixedly connected to the other side of the top of the drying barrel (1), and a connecting cover (7) is fixedly connected to the other end of the L-shaped plate (6). The connecting cover (7) and the rotating tube (17) are rotatably connected.

5. The centrifugal spray dryer with multi-layer drying chambers according to claim 4, characterized in that: A circular cover (10) is fixedly connected to one end of the upright plate (2) away from the bevel gear (9). A square tube (11) is fixedly connected to the bottom end of the circular cover (10). The square tube (11) and the connecting cover (7) are connected by a connecting tube (8).

6. The centrifugal spray dryer with multi-layer drying chambers according to claim 5, characterized in that: Multiple arc-shaped fan blades (19) are fixedly connected to the outer wall of the rotating shaft (4) corresponding to the inside of the circular cover (10) and the square tube (11), and an air intake pipe (3) is fixedly passed through the other end of the square tube (11).

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