Iron oxide gradient dryer

Abstract

The utility model discloses an iron oxide gradient formula drying device, including the vertical setting drying box, install several drying board in this drying box, drying board in drying box is left and right gradient formula setting, and the left drying board is installed between the right side wall of drying box and leaves the blanking gap, and the right drying board is installed between the left side wall of drying box and leaves the blanking gap also, and drying board all are inclined setting. The inside of the device is provided with the drying board of left and right ladder type, and the powder of iron oxide falls into the drying board from the feed port of top, and the heat provided by drying mechanism is used to dry, and in the process of drying, it is rolled down on the drying board, and finally, it is discharged from the discharge port of drying box, can realize the continuous drying effect of iron oxide powder, and improves drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of iron oxide preparation technology, specifically to an iron oxide gradient drying device. Background Technology

[0002] In existing technologies, drying iron oxide powder is essential. The presence of moisture in iron oxide powder can cause changes in physical properties such as particle size and bulk density. For example, damp iron oxide powder is prone to agglomeration, affecting its dispersibility and flowability. When used in coatings, inks, and other fields, this can lead to uneven coating or reduced printing quality. Furthermore, when iron oxide contains a lot of moisture, it is easy to adhere to the inner wall of the equipment or the screen during processing such as grinding, sieving, and conveying, causing blockages (such as nozzle blockage in spray drying towers). This not only affects production efficiency but may also exacerbate equipment wear and increase maintenance costs.

[0003] In existing technologies, drying equipment for iron oxide, such as the "Drying System for Iron Oxide" disclosed in Publication No. CN206670304U, uses a paddle dryer to dry the material, removing some of the water from the iron oxide, and then uses a disc dryer for final drying to complete the discharge. A filter press can quickly remove a large amount of moisture, improving the efficiency of subsequent drying and dehydration.

[0004] For example, in the prior art, the "A Drying Production Line for Iron Oxide Pigments" disclosed in Publication (Announcement) No.: CN213020888U, the technical solution realizes automatic conveying and cooling of the dried raw materials, reducing labor intensity and improving work efficiency.

[0005] The above technical solutions do not significantly improve the quality and efficiency of iron oxide drying, especially the continuous feeding and drying effect of iron oxide. Furthermore, the heat generated during drying in the existing technology is not directly applied to the iron oxide, but is distributed throughout the entire chamber, resulting in heat waste.

[0006] Therefore, in order to solve the above problems, it is necessary to develop a gradient drying device for iron oxide with a reasonable structure that can improve drying efficiency and quality. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a gradient drying device for iron oxide; the technical solution is as follows:

[0008] A gradient drying device for iron oxide includes a vertically arranged drying box, in which several drying plates are installed. The drying plates are arranged in a gradient from left to right in the drying box. A material drop gap is left between the drying plate installed on the left side and the right side wall of the drying box, and a material drop gap is also left between the drying plate installed on the right side and the left side wall of the drying box. All the drying plates are inclined.

[0009] The drying chamber has a feed inlet on the upper left side and a discharge outlet on the lower right side. Each drying plate in the drying chamber has a drying mechanism installed on its lower end face. Air jets are also installed on both sides of the drying chamber wall. The air jets are located at the upper end of each drying plate and the air jet direction is inclined downward and parallel to the drying plate at the same position.

[0010] The drying plate is heated by the drying mechanism on its lower end face. After the iron oxide powder falls into the drying plate, the moisture evaporates and the powder moves downward on the inclined drying plate by the airflow from the jet nozzle.

[0011] Furthermore, the jet head is connected to a jet mechanism, which guides airflow into the jet head and ejects it.

[0012] Furthermore, each drying plate is also equipped with several vertical partitions, which are evenly spaced to form a drying area between adjacent drying plates.

[0013] Furthermore, each drying plate is equipped with several jet heads at its upper end, and the number and position of the jet heads correspond to the number and position of the drying areas formed by the partition, so that the airflow ejected from the jet heads is guided to each drying area accordingly.

[0014] Furthermore, the drying mechanism includes a sealed box disposed at the lower end of each drying plate. The sealed box contains a heat-conducting liquid, and the two ends of the sealed box are fixed to the side wall of the drying chamber. An electric heating rod is installed on the side wall of the drying chamber, and the electric heating rod extends through the side wall of the drying chamber into the sealed box. The electric heating rod heats the heat-conducting liquid in the sealed box and then transfers the heat to the drying plate. After the iron oxide powder falls onto the drying plate, the iron oxide powder is heated.

[0015] Furthermore, the heat-conducting liquid is set as water or heat-conducting oil.

[0016] Furthermore, both the drying plate and the partitions on the drying plate are made of copper, a material that is easily conductive to heat.

[0017] Furthermore, the drying chamber contains at least three drying plates that are evenly spaced vertically; and the feed inlet at the top of the drying chamber and the discharge outlet at the bottom of the drying chamber are positioned in accordance with the positions of the drying plates.

[0018] Beneficial effects: This utility model has the following beneficial effects:

[0019] 1) This device has left and right stepped drying plates inside the drying chamber. After the iron oxide powder falls into the drying plate from the upper feed port, it is dried by the heat provided by the drying mechanism. During the drying process, it rolls down the drying plate and finally exits from the discharge port of the drying chamber. This can achieve continuous drying of iron oxide powder and improve drying efficiency.

[0020] 2) This device is equipped with a jet nozzle at the upper end of the drying plate. The jet nozzle can spray air into the drying plate. Since some powder may stick to the drying plate due to its own gravity, the jet nozzle design in this embodiment can blow off all the iron oxide powder sticking to the drying plate, thus speeding up the drying efficiency and quality.

[0021] 3) This device also has a partition at the upper end of the drying plate, forming a drying area between adjacent partitions. Setting up a drying area can increase the heat contact area of ​​the iron oxide powder. Furthermore, an air jet is set at the position of each drying area, and airflow can be injected into each heating area to accelerate the flow of powder, which can further increase the drying effect and quality.

[0022] 4) The drying mechanism of this device is not designed to be directly installed in the drying chamber to heat the entire drying chamber. Instead, the drying mechanism is directly installed on the lower end of each drying plate. Heat is transferred directly through the heat-conducting liquid in the sealed box. Therefore, the drying quality can be effectively increased. The powder on the drying plate is directly heated. Moreover, the installation of the sealed box does not occupy any space. It can be directly installed on the lower end of the drying plate. The structural design is also very reasonable. Attached Figure Description

[0023] Figure 1 This is a structural diagram of Embodiment 1 of the present utility model;

[0024] Figure 2 for Figure 1 Sectional view of AA;

[0025] Figure 3 This is a structural diagram of Embodiment 2 of the present utility model;

[0026] Figure 4 for Figure 3 BB section view;

[0027] The components include: 1. Drying chamber; 2. Drying plate; 3. Material drop gap; 4. Feed inlet; 5. Air jet head; 6. Air jet mechanism; 7. Partition; 8. Drying area; 9. Sealing box; and 10. Electric heating rod. Detailed Implementation

[0028] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented under the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, an iron oxide gradient drying device of this embodiment includes a vertically arranged drying box 1, in which a plurality of drying plates 2 are installed. The drying plates 2 are arranged in a left-right gradient in the drying box 1. A material drop gap 3 is left between the drying plate 2 installed on the left side and the right side wall of the drying box 1, and a material drop gap 3 is also left between the drying plate 2 installed on the right side and the left side wall of the drying box 1. In this embodiment, the drying plates 2 are all inclined.

[0031] In this embodiment, the drying chamber 1 has a feed inlet 4 on the upper left side and a discharge outlet on the lower right side. In this embodiment, each drying plate 2 in the drying chamber 1 is equipped with a drying mechanism on its lower end face. In addition, each side wall of the drying chamber 1 is equipped with a jet nozzle 5. In this embodiment, the jet nozzle 5 is located at the upper end of each drying plate 2, and the jet direction of the jet nozzle 5 is inclined downward and parallel to the drying plate 2 at the same position.

[0032] In this embodiment, the drying plate 2 is heated by the drying mechanism on the lower end face. After the iron oxide powder falls into the drying plate 2, the moisture evaporates and the powder moves downward on the inclined drying plate 2 by the airflow from the jet head 5.

[0033] In this embodiment, the jet head 5 is externally connected to the jet mechanism 6, which guides the airflow into the jet head 5 and ejects it.

[0034] Each drying plate 2 is also equipped with several vertical partitions 7. In this embodiment, the partitions 7 are evenly spaced, and a drying area 8 is formed between adjacent drying plates 2.

[0035] Each drying plate 2 is equipped with several jet heads 5 at its upper end, and the number and position of the jet heads 5 correspond to the number and position of the drying areas 8 formed by the partition 7, so that the airflow ejected from the jet heads 5 is guided to each drying area 8.

[0036] In this embodiment, the drying chamber is equipped with left and right stepped drying plates, which are inclined. The lower end of the drying plate is equipped with a drying mechanism to provide heat to each drying plate. When the iron oxide powder falls into the drying plate from the upper feed port, it can be dried by the heat provided by the drying mechanism. During the drying process, the powder rolls down the drying plate and is finally discharged from the discharge port of the drying chamber. This achieves continuous drying of iron oxide powder and improves drying efficiency.

[0037] Furthermore, in this embodiment, a jet nozzle is provided at the upper end of the drying plate. The jet nozzle can spray airflow onto the drying plate. Since some powder may adhere to the drying plate due to its own gravity, the jet nozzle design in this embodiment can blow off all the iron oxide powder adhering to the drying plate, thereby accelerating the drying efficiency and quality.

[0038] In this embodiment, a partition is also provided at the upper end of the drying plate, and a drying area is formed between adjacent partitions. The setting of the drying area can increase the heat contact area of ​​the iron oxide powder, and an air jet is provided at the position of each drying area. Airflow can be injected into each heating area to accelerate the flow of powder, which can further increase the drying effect and quality.

[0039] Example 2

[0040] like Figure 3 and Figure 4 As shown, this embodiment of an iron oxide gradient drying device includes a vertically arranged drying box 1, in which a plurality of drying plates 2 are installed. In this embodiment, the drying plates 2 are arranged in a left-right gradient in the drying box 1. A material drop gap 3 is left between the drying plate 2 installed on the left side and the right side wall of the drying box 1, and a material drop gap 3 is also left between the drying plate 2 installed on the right side and the left side wall of the drying box 1. In this embodiment, the drying plates 2 are all inclined.

[0041] In this embodiment, the drying chamber 1 has a feed inlet 4 on the upper left side and a discharge outlet on the lower right side; a drying mechanism is installed on the lower end face of each drying plate 2 inside the drying chamber 1, and a jet nozzle 5 is installed on both sides of the drying chamber 1. In this embodiment, the jet nozzle 5 is located at the upper end of each drying plate 2, and the jet direction of the jet nozzle 5 is inclined downward and parallel to the drying plate 2 at the same position.

[0042] In this embodiment, the drying plate 2 is heated by the drying mechanism on the lower end face. After the iron oxide powder falls into the drying plate 2, the moisture evaporates and the powder moves downward on the inclined drying plate 2 by the airflow from the jet head 5. In this embodiment, the jet head 5 is connected to a jet mechanism 6, which guides the airflow into the jet head 5 and sprays it out.

[0043] Each drying plate 2 is also equipped with several vertical partitions 7. In this embodiment, the partitions 7 are evenly spaced, and a drying area 8 is formed between adjacent drying plates 2.

[0044] Each drying plate 2 is equipped with several jet heads 5 at its upper end, and the number and position of the jet heads 5 correspond to the number and position of the drying areas 8 formed by the partition 7, so that the airflow ejected from the jet heads 5 is guided to each drying area 8.

[0045] The drying mechanism in this embodiment includes a sealing box 9 disposed at the lower end of each drying plate 2. In this embodiment, the sealing box 9 is filled with a heat-conducting liquid, and the two sides of the sealing box 9 are fixed to the side wall of the drying chamber 1. An electric heating rod 10 is installed on the side wall of the drying chamber 1. In this embodiment, the electric heating rod 10 extends through the side wall of the drying chamber 1 into the sealing box 9. The heat-conducting liquid in the sealing box 9 is heated by the electric heating rod 10, and then the heat is transferred to the drying plate 2. After the iron oxide powder falls onto the drying plate 2, the iron oxide powder is heated.

[0046] In this embodiment, the heat-conducting liquid is set to water or heat-conducting oil; in this embodiment, both the drying plate 2 and the partition 7 on the drying plate 2 are made of copper material that is easy to conduct heat.

[0047] The drying chamber 1 contains at least three drying plates 2 that are evenly spaced vertically; and the feed inlet 4 at the top of the drying chamber 1 and the discharge outlet at the bottom of the drying chamber 1 are positioned in the same manner as the drying plates 2.

[0048] The technical solution of this embodiment is based on the technical solution of embodiment 1, and the specific structure of the drying mechanism is specifically designed. In this embodiment, a sealing box is directly set on the lower end face of each drying plate, and a heat-conducting liquid is set in the sealing box. Then, electric heating rods are installed from the side walls of the drying box on both sides. The electric heating rods are installed in the sealing box after passing through the side walls of the box laterally. After the heat-conducting liquid in the sealing box is heated directly by the electric heating rods, the heat is directly transferred upward to the drying plate, which can directly dry the iron oxide powder on the drying plate.

[0049] The drying mechanism in this embodiment is not designed to be directly installed inside the drying chamber to heat the entire drying chamber. Instead, the drying mechanism is directly installed on the lower end face of each drying plate. Heat is transferred directly through the heat-conducting liquid in the sealed box. Therefore, the drying quality can be effectively increased. The powder on the drying plate is directly heated, and the installation of the sealed box does not occupy any space. It can be directly installed on the lower end face of the drying plate. The structural design is also very reasonable.

[0050] The above-described specific embodiments are merely preferred embodiments of this utility model and are not intended to limit the implementation of this utility model or the scope of the claims. All equivalent changes and modifications made in accordance with the scope of protection of this utility model patent application should be included within the scope of this utility model patent application.

Claims

1. A gradient drying device for iron oxide, characterized in that: The equipment includes a vertically arranged drying box (1), which contains several drying plates (2). The drying plates (2) are arranged in a gradient pattern on the left and right sides inside the drying box (1). A material drop gap (3) is left between the drying plate (2) installed on the left side and the right side wall of the drying box (1), and a material drop gap (3) is also left between the drying plate (2) installed on the right side and the left side wall of the drying box (1). All the drying plates (2) are arranged at an angle. The drying chamber (1) has a feed inlet (4) on the upper left side and a discharge outlet on the lower right side; a drying mechanism is installed on the lower end face of each drying plate (2) in the drying chamber (1), and a jet nozzle (5) is installed on both sides of the drying chamber (1). The jet nozzle (5) is located at the upper end of each drying plate (2), and the jet direction of the jet nozzle (5) is inclined downward and parallel to the drying plate (2) at the same position. The drying plate (2) is heated by the drying mechanism on the lower end face. After the iron oxide powder falls into the drying plate (2), the moisture evaporates and moves downward on the inclined drying plate (2) through the airflow of the jet head (5).

2. The iron oxide gradient drying device according to claim 1, characterized in that: The jet head (5) is connected to a jet mechanism (6), through which airflow is guided into the jet head (5) and ejected.

3. The iron oxide gradient drying device according to claim 1, characterized in that: Each drying plate (2) is also equipped with several vertical partitions (7), which are evenly spaced and form a drying area (8) between adjacent drying plates (2).

4. The iron oxide gradient drying device according to claim 3, characterized in that: Each drying plate (2) is equipped with several jet heads (5) at its upper end, and the number and position of the jet heads (5) correspond to the number and position of the drying areas (8) formed by the partition (7), so that the airflow ejected by the jet heads (5) is guided to each drying area (8).

5. The iron oxide gradient drying device according to claim 3, characterized in that: The drying mechanism includes a sealing box (9) disposed at the lower end of each drying plate (2). The sealing box (9) contains a heat-conducting liquid, and the two ends of the sealing box (9) are fixed to the side wall of the drying chamber (1). An electric heating rod (10) is installed on the side wall of the drying chamber (1). The electric heating rod (10) extends through the side wall of the drying chamber (1) into the sealing box (9). The heat-conducting liquid in the sealing box (9) is heated by the electric heating rod (10), and the heat is transferred to the drying plate (2). After the iron oxide powder falls onto the drying plate (2), the iron oxide powder is heated.

6. The iron oxide gradient drying device according to claim 5, characterized in that: The heat-conducting liquid is set as water or heat-conducting oil.

7. The iron oxide gradient drying device according to claim 5, characterized in that: The drying plate (2) and the partition (7) on the drying plate (2) are both made of copper material that is easy to conduct heat.

8. The iron oxide gradient drying device according to claim 1, characterized in that: The drying chamber (1) has at least three drying plates (2) spaced evenly from top to bottom; and the feed inlet (4) at the top of the drying chamber (1) and the discharge outlet at the bottom of the drying chamber (1) are positioned in the same way as the drying plates (2).

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