Fire retardant drying device

Abstract

An upper sealing plate and a lower sealing plate are arranged at openings in the two ends of a barrel-shaped shell, the upper sealing plate and the barrel-shaped shell are detachably assembled, a stirring shaft is rotationally assembled in the barrel-shaped shell, the lower end, extending out of the lower sealing plate, of the stirring shaft is a power input end, and spiral stirring blades are arranged on the peripheral face of the stirring shaft in a coiled mode. The lower edge of the spiral stirring blade is in contact fit with the lower sealing plate, a working gap is formed between the upper edge of the spiral stirring blade and the upper sealing plate, a fan is rotationally assembled on the upper sealing plate, and the end, extending out of the upper sealing plate, of a rotating shaft of the fan is a power input end. When the stirring shaft rotates, the spiral stirring blades can shovel up combustion improvers, the combustion improvers can fall down from the spiral stirring blades along with continuous rotation of the stirring shaft, in the falling process, the air permeability between the combustion improvers becomes good, liquid in the combustion improvers can be better taken away by wind from the fan, and the combustion improvers can be prevented from being burnt out. The drying time of the combustion improver can be shortened, and the combustion improver can be dried more uniformly.

Description

Technical Field

[0001] The utility model relates to a flame retardant drying device and belongs to the field of flame retardant production. Background Art

[0002] Flame retardant is an additive that can make a substance have flame retardant properties. With the development of economy, its application is becoming more and more extensive. Flame retardant needs to be dried during the production process. One of the problems in the drying operation of flame retardant is uneven drying. In order to solve this problem, the Chinese patent specification with application number: 201621330099.2 discloses a flame retardant drying device, including a shell (1), characterized in that: a control device (2) is arranged on the right wall of the shell (1), a material receiving box (3) is arranged at the bottom of the inner cavity of the shell (1), a motor storage cabinet (4) is arranged at the bottom of the inner cavity of the material receiving box (3), a motor (5) is arranged at the top of the inner cavity of the motor storage cabinet (4), a stirring box (6) is arranged on the top of the motor storage cabinet (4), and discharge holes (8) are opened at the bottom of the left and right side walls of the stirring box (6), and a rotating rod (7) is arranged at the top power output end of the motor (5), and the rotating rod (7) passes through the bottom of the stirring box (6). The left and right side walls of the housing (1) are both provided with stirring paddles (9), the stirring paddles (9) are arranged in the inner cavity of the stirring box (6), the left wall of the housing (1) is plugged with a feed pipe (10), the right end of the feed pipe (10) passes through the left wall of the housing (1), and the right end of the feed pipe (10) is arranged on the top of the stirring box (6), the top of the feed pipe (10) is provided with a funnel (11), the left and right ends of the top of the housing (1) are both provided with connecting blocks (12), a fan (13) is arranged between the two groups of the connecting blocks (12), a dryer (14) is arranged at the bottom of the fan (13), and the dryer (14) is arranged on the top of the stirring box (6), and the control device (2) is electrically connected to the motor (5), the fan (13) and the dryer (14) respectively. The stirring paddle is used for stirring, which greatly improves the drying uniformity of the flame retardant. However, even if stirring is performed, there is still a problem of the flame retardant agglomerating, resulting in uneven drying. Utility Model Content

[0003] The utility model aims to provide a flame retardant drying device to solve the problem of uneven drying during the flame retardant drying process in the prior art.

[0004] In order to solve the above problems, the flame retardant drying device involved in the utility model adopts the following technical scheme: a flame retardant drying device, comprising a cylindrical outer shell, an upper sealing plate and a lower sealing plate are arranged at the openings at both ends of the cylindrical outer shell, the upper sealing plate and the cylindrical outer shell are detachable and assembled, a stirring shaft is rotatably installed in the cylindrical outer shell, the lower end of the stirring shaft extending out of the lower sealing plate is the power input end, a spiral stirring blade is arranged on the outer peripheral surface of the stirring shaft, the lower edge of the spiral stirring blade is in contact with the lower sealing plate, and a working gap is provided between the upper edge of the spiral stirring blade and the upper sealing plate, a fan is rotatably installed on the upper sealing plate, and the end of the fan's rotating shaft extending out of the upper sealing plate is the power input end.

[0005] A through hole is provided in the middle of the rotating shaft of the fan, and the upper end of the stirring shaft is rotatably arranged in the through hole.

[0006] The rotating shaft of the fan inputs power through the gear teeth on the upper end surface.

[0007] The setting angle of the spiral stirring blade on the stirring shaft is less than 360 degrees.

[0008] The outer edge of the spiral stirring blade is in contact with the cylindrical shell.

[0009] The outer surface of the stirring shaft of the utility model is provided with a spiral stirring blade, and the lower edge of the spiral stirring blade is in contact with the lower sealing plate. When the stirring shaft rotates, the spiral stirring blade will scoop up the combustion aid, and as the stirring shaft continues to rotate, the combustion aid will fall from the upper extension of the spiral stirring blade. During this falling process, the air permeability between the combustion aids will become very good, and there will be no problem of clumping. The wind from the fan will better take away the liquid in the combustion aid, which can shorten the drying time of the combustion aid and make the combustion aid dry more evenly.

[0010] The fan of the utility model has a through hole in the middle of the rotating shaft, and the upper end of the stirring shaft is rotatably arranged in the through hole, so that the installation and movement stability of the stirring shaft are better.

[0011] The outer edge of the spiral stirring blade of the utility model contacts the cylindrical shell, so that the combustion aid can be scooped up to the maximum extent, allowing more combustion aid to experience the drying process during free fall, thereby better drying the combustion aid and making the combustion aid dry evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment:

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure after removing the upper sealing plate;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure after removing the upper cover and fan. DETAILED DESCRIPTION

[0016] In order to make the technical purpose, technical solution and beneficial effects of the utility model clearer, the technical solution of the utility model is further described below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0017] The specific embodiment of the flame retardant drying device involved in the utility model is Figure 1-Figure 3 In the embodiment, the cylindrical shell 1 is cylindrical with openings at both ends. An upper sealing plate 2 and a lower sealing plate 3 are respectively arranged on the openings at both ends of the cylindrical shell 1, wherein the upper sealing plate 2 and the cylindrical shell are detachably assembled. In the present embodiment, the upper sealing plate 2 is directly placed on the cylindrical shell 1, and an inner concave portion is arranged at the inner edge of the upper port of the cylindrical shell 1. The upper sealing plate 2 fits in this inner concave portion, and the relative relationship between the upper sealing plate 2 and the cylindrical shell 1 is constrained by gravity. A stirring shaft 4 is rotatably assembled in the cylindrical shell 1, and the lower end of the stirring shaft 4 extends out of the lower sealing plate 3, and the lower end of the stirring shaft 4 is the power input end. A spiral stirring blade 5 is arranged on the outer peripheral surface of the stirring shaft 4, and the spiral stirring blade 5 is arranged on the stirring shaft 4, and the lower edge of the spiral stirring blade 5 contacts and cooperates with the lower sealing plate 3, and the outer edge of the spiral stirring blade 5 contacts the inner hole wall of the cylindrical shell 1. The setting angle of the spiral stirring blade 5 on the stirring shaft is less than 360 degrees, and the setting angle of the spiral stirring blade 5 on the stirring shaft in this embodiment is 180 degrees. The so-called setting angle refers to the degree of the central angle of the sector occupied by the projection point of the starting point of the spiral stirring blade on the cross section of the stirring shaft and the projection point of the end point of the spiral stirring blade on the cross section of the stirring shaft.

[0018] There is a working gap between the upper edge of the spiral stirring blade 5 and the upper sealing plate 2. A fan 6 is rotatably mounted on the upper sealing plate 2. The fan 6 has a rotating shaft. Three fan blades are arranged on the outer circumference of the rotating shaft of the fan 6. The fan blades are in the working space. The rotating shaft of the fan 6 extends out of the upper sealing plate 2. The end of the rotating shaft of the fan 6 extending out of the upper sealing plate 2 is the power input end.

[0019] There is a through hole in the middle of the rotating shaft of the fan 6, and the upper end of the stirring shaft 4 is rotatably arranged in this through hole. The fan 6 is rotatably assembled on the upper sealing plate 2, and the stirring shaft 4 is rotatably assembled in the stirring shaft 4, so that the stirring shaft can be stabilized so that its rotation axis is not arbitrarily offset.

[0020] Gear teeth 7 are provided on the upper end surface of the rotating shaft of the fan 6, and power is input through the gear teeth 7 to drive the fan to rotate.

[0021] The upper sealing plate 2 and the cylindrical shell in the above embodiment are detachably assembled in any manner in the prior art.

[0022] The fan in the above embodiment has a through hole in the middle of its rotating shaft, and the upper end of the stirring shaft is rotatably disposed in the through hole. In other embodiments, the upper end of the stirring shaft may be freely cantilevered.

[0023] In the above embodiment, gear teeth 7 are provided on the upper end surface of the rotating shaft of the fan 6, and power is input through the gear teeth 7 to drive the fan to rotate. In other embodiments, a cylindrical gear can also be provided on the rotating shaft of the fan 6 as a driven wheel to realize power input.

[0024] The lower end of the stirring shaft in this embodiment is the power input end. In other embodiments, the upper end of the stirring shaft can also extend out of the rotating shaft of the fan and use the upper end of the stirring shaft as the power input end.

[0025] The setting angle of the spiral stirring blade on the stirring shaft in this embodiment is 180 degrees. In other embodiments, other angle values ​​less than 360 degrees may also be selected.

[0026] The outer edge of the spiral stirring blade in this embodiment is in contact with the cylindrical outer shell. In other embodiments, the outer edge of the spiral stirring blade may be loosely matched with the cylindrical outer shell.

[0027] In this embodiment, no specific power source is given. When in use, additional power is required to drive the fan to rotate and the stirring shaft to rotate. The power for driving the shaft to rotate is relatively common in the prior art and will not be described in detail here.

[0028] In this embodiment, an active bevel gear may be meshed with the gear teeth on the end face of the rotating shaft of the fan, and the active bevel gear may be connected to a power structure, such as a motor transmission.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate but not to limit the technical solutions of the present invention, and any equivalent substitutions of the present invention and any modifications or partial substitutions that do not depart from the spirit and scope of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A flame retardant drying device, characterized in that: It includes a cylindrical outer shell, and an upper sealing plate and a lower sealing plate are arranged at the openings at both ends of the cylindrical outer shell. The upper sealing plate and the cylindrical outer shell can be detachably assembled. A stirring shaft is rotatably assembled in the cylindrical outer shell, and the lower end of the stirring shaft extending out of the lower sealing plate is a power input end. A spiral stirring blade is arranged on the outer peripheral surface of the stirring shaft, and the lower edge of the spiral stirring blade is in contact with the lower sealing plate, and a working gap is provided between the upper edge of the spiral stirring blade and the upper sealing plate. A fan is rotatably assembled on the upper sealing plate, and the end of the fan shaft extending out of the upper sealing plate is a power input end.

2. The flame retardant drying device according to claim 1, characterized in that: A through hole is provided in the middle of the rotating shaft of the fan, and the upper end of the stirring shaft is rotatably arranged in the through hole.

3. The flame retardant drying device according to claim 2, characterized in that: The rotating shaft of the fan inputs power through the gear teeth on the upper end surface.

4. The flame retardant drying device according to claim 3, characterized in that: The setting angle of the spiral stirring blade on the stirring shaft is less than 360 degrees.

5. The flame retardant drying device according to claim 1, 2, 3 or 4, characterized in that: The outer edge of the spiral stirring blade is in contact with the cylindrical shell.

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