Centrifugal spray dryer

Abstract

The utility model relates to the field of drying machines, in particular to a centrifugal spray drying machine which comprises a drying tank, a hot air mechanism is arranged on one side of the drying tank, a feeding mechanism is arranged at the top of the drying tank, a mounting table is arranged at the bottom end in the drying tank, a discharging port is formed in the middle of the mounting table, and a rotating groove is formed in the upper end face of the mounting table. An arc-shaped heat conduction cylinder is rotationally installed in the rotating groove and attached to the inner wall of the drying tank, and a plurality of scraping plates are installed in the middle of the arc-shaped heat conduction cylinder through a supporting frame. When atomized materials are dried, the drying efficiency of the materials can be effectively improved through the additionally-arranged side air outlet, the arc-shaped heat conduction barrel is driven by the driving motor to rotate, the materials which are not dried thoroughly can be further dried through the heat conduction performance of the arc-shaped heat conduction barrel in cooperation with a scraper blade and other assemblies, and the drying efficiency of the materials is improved. And part of materials attached to the inner wall are scraped and guided to the discharging opening, the drying effect on the materials is effectively improved, and the machining quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a centrifugal spray dryer. Background Technique

[0002] Spray drying is the most widely used process in liquid process forming and drying industries. It is most suitable for generating powdery and granular solid products from liquid raw materials such as solutions, emulsions, suspensions, and pastes. Therefore, when the particle size distribution, residual moisture content, bulk density, and particle shape of the finished product must meet precise standards, spray drying is an ideal process.

[0003] The existing traditional centrifugal spray dryer can already achieve basic drying functions. However, in its actual use process, only the hot air outlet at the top cannot meet the drying requirements, resulting in undried materials still adhering to the side wall of the drying tank, affecting the processing efficiency and quality. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a centrifugal spray dryer is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A centrifugal spray dryer, including a drying tank, one side of the drying tank is provided with a hot air mechanism, and the top is provided with a feeding mechanism. The inner bottom end of the drying tank is provided with an installation table, the middle of the installation table is provided with a discharge port, and the upper end surface of the installation table is provided with a rotating groove. An arc-shaped heat conduction cylinder is rotatably installed in the rotating groove, the arc-shaped heat conduction cylinder is attached to the inner wall of the drying tank, and a plurality of scraping plates are installed in the middle of the arc-shaped heat conduction cylinder through a support frame.

[0007] In addition, the preferred structure is that one end of the feeding mechanism is connected to a blanking port, and the blanking port is installed at the top end of the inner wall of the drying tank.

[0008] In addition, the preferred structure is that one side of the top end of the inner wall of the drying tank is installed with a top air outlet, and a plurality of side air outlets are installed in the middle of the inner wall of the drying tank. Among them, the top air outlet and the side air outlets are both connected to the hot air mechanism through connecting air ducts.

[0009] In addition, the preferred structure is that the inner bottom end of the drying tank is conical, its narrow end faces downward, and a discharge port is opened in the middle and is communicated with the inside of the drying tank.

[0010] In addition, the preferred structure is that a driving motor is installed on one side of the bottom of the drying tank, the output end of the driving motor is drivingly installed with a worm, the other end of the worm is rotatably installed on one side inside the drying tank, and a rotating groove is provided on the side far from the worm. Among them, the installation position of the worm is far from the inner drying cavity of the drying tank.

[0011] In addition, a preferred structure is that the bottom of the arc-shaped heat conduction cylinder is rotatably installed on the upper wall of the installation table, and a worm gear is installed at the bottom of the arc-shaped heat conduction cylinder. The worm gear is installed in the rotation groove, and a worm is meshed and connected to one side of the worm gear.

[0012] In addition, a preferred structure is that the arc-shaped heat conduction cylinder is conical, fits with the inner wall of the drying tank, a through hole is provided in the middle of the arc-shaped heat conduction cylinder to correspond to the discharge port, and a plurality of guiding inclined plates are provided on the outer side away from the through hole.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In the present utility model, when drying the atomized material, the drying efficiency of the material can be effectively increased through the additionally provided side air outlet. And by driving the arc-shaped heat conduction cylinder to rotate through the driving motor, further drying can be carried out on the material that is not thoroughly dried through its heat conduction performance and in cooperation with components such as a scraper, and part of the material attached to the inner wall can be scraped off and guided to the discharge port, effectively improving the drying effect of the material and ensuring the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a centrifugal spray dryer proposed by the present utility model;

[0016] Figure 2 is a schematic structural diagram of a centrifugal spray dryer proposed by the present utility model;

[0017] Figure 3 is a schematic structural diagram of a centrifugal spray dryer proposed by the present utility model;

[0018] Figure 4 is a schematic structural diagram of a centrifugal spray dryer proposed by the present utility model;

[0019] Figure 5 is a schematic structural diagram of a centrifugal spray dryer proposed by the present utility model;

[0020] Figure 6 is a schematic structural diagram of a centrifugal spray dryer proposed by the present utility model.

[0021] In the figure: 1, drying tank; 2, feeding mechanism; 21, blanking port; 3, hot air mechanism; 31, top air outlet; 4, discharge port; 5, driving motor; 51, worm; 6, side air outlet; 7, arc-shaped heat conduction cylinder; 8, worm gear; 9, support frame; 91, scraper; 10, rotation groove; 11, installation table; 12, guiding inclined plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Referring to Figure 1-6 , a centrifugal spray dryer includes a drying tank 1. A hot air mechanism 3 is provided on one side of the drying tank 1, and a feeding mechanism 2 is provided at the top. An installation table 11 is provided at the bottom end inside the drying tank 1. A discharge port 4 is formed in the middle of the installation table 11, and a rotating groove 10 is formed on the upper end surface of the installation table 11. An arc-shaped heat conduction cylinder 7 is rotatably installed in the rotating groove 10. The arc-shaped heat conduction cylinder 7 is attached to the inner wall of the drying tank 1, and a plurality of scraping plates 91 are installed in the middle of the arc-shaped heat conduction cylinder 7 through a support frame 9.

[0024] Further, one end of the feeding mechanism 2 is connected to a blanking port 21, and the blanking port 21 is installed at the top end of the inner wall of the drying tank 1.

[0025] Further, a top air outlet 31 is installed on one side of the top end of the inner wall of the drying tank 1, and a plurality of side air outlets 6 are installed in the middle of the inner wall of the drying tank 1. The top air outlet 31 and the side air outlets 6 are both connected to the hot air mechanism 3 through connecting air ducts.

[0026] Further, the bottom end inside the drying tank 1 is conical, with its narrow end facing downwards, and a discharge port 4 is formed in the middle and is communicated with the inside of the drying tank 1.

[0027] Further, a driving motor 5 is installed on one side of the bottom of the drying tank 1. The output end of the driving motor 5 is drivingly installed with a worm 51. The other end of the worm 51 is rotatably installed on one side inside the drying tank 1, and a rotating groove 10 is provided on the side far from the worm 51. The installation position of the worm 51 is far from the inner drying cavity of the drying tank 1.

[0028] Further, the bottom of the arc-shaped heat conduction cylinder 7 is rotatably installed on the upper wall of the installation table 11, and a worm gear 8 is installed at the bottom of the arc-shaped heat conduction cylinder 7. The worm gear 8 is installed in the rotating groove 10, and one side of the worm gear 8 is meshed with the worm 51.

[0029] Further, the arc-shaped heat conduction cylinder 7 is conical and is attached to the inner wall of the drying tank 1. A through hole is formed in the middle of the arc-shaped heat conduction cylinder 7 to correspond to the discharge port 4, and a plurality of guiding inclined plates 12 are provided on the outer side far from the through hole.

[0030] In this embodiment, the liquid material is introduced, atomized and sent to the blanking port inside the drying tank 1 through the feeding mechanism. The blanking port atomizes and sprays the material, and cooperates with the hot air mechanism 3 to introduce the hot air into the top air outlet 31 for discharge, thereby realizing the basic atomization drying process.

[0031] Among them, during the actual use process, a plurality of side air outlets 6 are still provided in the middle of the tank body of the drying tank 1. The side air outlets 6 are connected to the hot air mechanism 3 through pipelines. Hot air is led out through the side air outlets 6 to further dry the dried materials falling from the upper part of the drying tank 1. Then the materials will fall into the arc-shaped heat conduction cylinder 7 arranged at the bottom of the drying tank 1. The arc-shaped heat conduction cylinder 7 realizes the rotation function through the driving motor 5. During the rotation of the arc-shaped heat conduction cylinder 7, a plurality of scraping plates 91 arranged on its upper part will scrape the inner wall of the drying tank 1, and scrape off some incompletely dried materials attached to the tank wall and make them fall into the inside of the arc-shaped heat conduction cylinder 7. And because the arc-shaped heat conduction cylinder 7 has a certain heat conduction function, the high temperature of its cylinder wall can further dry the materials. At the same time, under the continuous rotation of the arc-shaped heat conduction cylinder 7, the materials are continuously discharged through the guiding inclined plate 12 and fall into the discharge port 4 arranged in the middle for collection.

[0032] Among them, during the actual use process, a rotating groove 11 is opened in the middle of the installation table 11 to meet the basic rotation function of the arc-shaped heat conduction cylinder 7. And a notch is opened on one side inside the rotating groove 11, and the notch is communicated with the installation cavity of the installed worm 51. This enables the worm 51 connected to the driving motor 5 to mesh with the worm gear 8 arranged at the bottom of the arc-shaped heat conduction cylinder 7. During the rotation of the worm gear 8, through the meshing of the spiral teeth of its worm 51 with the tooth surface of the worm gear 8, when the worm 51 rotates, the worm gear 8 is driven to rotate through the meshing action, and thus the overall rotation function of the arc-shaped heat conduction cylinder 7 is realized.

[0033] Among them, during the actual use process, due to its conical design, the heat guided by the arc-shaped heat conduction cylinder 7 will accumulate in the middle and further dry the materials falling inside.

[0034] In the present utility model, when drying the atomized materials, the additional side air outlets 6 can effectively improve the drying efficiency of the materials. And by driving the arc-shaped heat conduction cylinder to rotate through the driving motor 5, through its heat conduction performance and in cooperation with components such as the scraping plates 91, the materials that are not thoroughly dried can be further dried, and some of the materials attached to the inner wall can be scraped off and guided to the discharge port, effectively improving the drying effect of the materials and ensuring the processing quality.

[0035] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A centrifugal spray dryer, comprising a drying tank (1), characterized in that, One side of the drying tank (1) is provided with a hot air mechanism (3), the top is provided with a feeding mechanism (2), and the inner bottom end of the drying tank (1) is provided with a mounting table (11). A discharge port (4) is formed in the middle of the mounting table (11), and a rotating groove (10) is formed in the upper end surface of the mounting table (11). An arc-shaped heat conduction cylinder (7) is rotatably installed in the rotating groove (10). The arc-shaped heat conduction cylinder (7) is attached to the inner wall of the drying tank (1), and a plurality of scraping plates (91) are installed in the middle of the arc-shaped heat conduction cylinder (7) through a support frame (9).

2. The centrifugal spray dryer according to claim 1, wherein One end of the feeding mechanism (2) is connected to a feeding port (21), and the feeding port (21) is installed at the top end of the inner wall of the drying tank (1).

3. The centrifugal spray dryer according to claim 1, wherein, One side of the top end of the inner wall of the drying tank (1) is installed with a top air outlet (31), and a plurality of side air outlets (6) are installed in the middle of the inner wall of the drying tank (1). The top air outlet (31) and the side air outlets (6) are both connected to the hot air mechanism (3) through connecting air ducts.

4. A centrifugal spray dryer according to claim 1, characterized in that, The inner bottom end of the drying tank (1) is conical, with its narrow end facing downwards, and a discharge port (4) is formed in the middle and is communicated with the inside of the drying tank (1).

5. A centrifugal spray dryer according to claim 1, characterized in that, A driving motor (5) is installed on one side of the bottom of the drying tank (1). The output end of the driving motor (5) is drivingly installed with a worm (51). The other end of the worm (51) is rotatably installed on one side inside the drying tank (1), and there is a rotating groove (10) on the side far from the worm (51). The installation position of the worm (51) is far from the inner drying cavity of the drying tank (1).

6. A centrifugal spray dryer according to claim 1, characterized in that, The bottom of the arc-shaped heat conduction cylinder (7) is rotatably installed on the upper wall of the mounting table (11), and a worm gear (8) is installed at the bottom of the arc-shaped heat conduction cylinder (7). The worm gear (8) is installed in the rotating groove (10), and one side of the worm gear (8) is meshed with the worm (51).

7. A centrifugal spray dryer according to claim 1, characterized in that, The arc-shaped heat conduction cylinder (7) is conical, and is attached to the inner wall of the drying tank (1). A through hole is formed in the middle of the arc-shaped heat conduction cylinder (7) to correspond to the discharge port (4), and a plurality of guiding inclined plates (12) are arranged on the outer side far from the through hole.

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