Rotary flash drying machine

Abstract

The utility model relates to the technical field of drying machines, in particular to a rotary flash drying machine which comprises a drying barrel and an installation box arranged on the drying barrel, and a plurality of screen frames are arranged in the installation box in a sliding mode. The push plate is arranged in the mounting box; the limiting block is arranged in the mounting box, and the limiting block is matched with the pushing plate, so that in the process that one screen frame enters a limited state, the other screen frame can be released from limitation and pushed out. When one screen frame is in a limited state, the other screen frame is unlimited, so that the screen frame in the drying barrel is always limited in the mounting box, the situation that equipment needs to be shut down when the screen frame is replaced is avoided, and when the screen frame is mounted and one screen frame needs to be mounted in place, the equipment is not required to be shut down when the other screen frame needs to be mounted in place is avoided. And the other screen frame can be pushed out by the pushing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a rotary flash dryer. Background Art

[0002] In material production, dryers are often used. Dryers are drying equipment that reduces the moisture content of materials. There are many types of drying equipment on the market, and rotary flash dryer is one of them. Compared with traditional drying equipment, rotary flash dryer is a new type of continuous drying equipment that integrates drying, crushing and screening. It is particularly suitable for drying filter cakes, pastes, and slurry materials. The quality of the dried product is closely related to the drying temperature, wind speed, air volume, and crushing speed.

[0003] In order to avoid equipment shutdown when replacing the screen frame, the existing rotary flash dryer usually has two screen frames. After installing one screen frame, the other screen frame is removed. However, due to the improper operation of the staff, the screen frame is easily removed and then another screen frame is installed. However, this results in the absence of the screen frame in the drying cylinder for a period of time, making it very likely that the material that is not completely dried will enter the collection bucket, and the screen frame may not be installed properly, so that the material that is not completely dried will enter the collection bucket through the gap. For this reason, we propose a rotary flash dryer. Utility Model Content

[0004] A technical problem to be solved by the present application is: how to replace the screen frame without stopping the equipment.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a spin flash dryer, comprising a drying barrel and an installation box arranged on the drying barrel, wherein a plurality of screen frames are slidably arranged in the installation box;

[0006] Also included are:

[0007] A push plate, wherein the push plate is arranged in the installation box;

[0008] A limiting block is arranged in the installation box, and cooperates with the push plate. When one of the screen frames enters the restricted state, the other screen frame can be released from the restriction and pushed out;

[0009] Embedding holes are arranged on both sides of the screen frame, and the position of the screen frame is limited by cooperating with the limiting blocks through the embedding holes.

[0010] In some embodiments, multiple guide rails are opened on both sides of the inner surface of the installation box, the screen frame is connected to the installation box through the guide rails, and a accommodating cavity is opened on both sides of the surface of the installation box. The limiting block is arranged in the accommodating cavity, and a guide column is arranged in the accommodating cavity, and a limiting plate is arranged on the guide column.

[0011] In some embodiments, the limiting block is slidably disposed on the guide column, a second spring is disposed between the limiting block and the accommodating cavity, a plurality of limiting claws are disposed on the limiting block, and one side of the limiting claws is chamfered.

[0012] In some embodiments, a spring 1 is provided between the push plate and the mounting box.

[0013] In some embodiments, the accommodating cavity is arranged at the inner end of the installation box, and the limiting claw can be embedded in the embedding hole.

[0014] In some embodiments, a flip plate is rotatably provided at the outlet of the installation box, a torsion spring is provided on the rotation axis of the flip plate, and two ends of the torsion spring are respectively connected to the flip plate and the installation box.

[0015] The utility model has at least the following beneficial effects:

[0016] Different from the prior art, in actual use, a limiting block is set to cooperate with the embedded hole so that when one of the screen frames enters a restricted state, the restriction on the other screen frame is released, so that there is always a screen frame in the drying barrel restricted in the installation box, avoiding the need to shut down the equipment when replacing the screen frame, and when installing the screen frame, one screen frame needs to be installed in place before the other screen frame can be pushed out by the push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the screen frame structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the drying barrel of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the installation box of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the limiting block of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the installation box of the utility model;

[0023] Figure 7 For this utility model Figure 6Enlarged structural diagram at A in the middle.

[0024] In the figure: 1-drying barrel; 2-installation box; 21-guide rail; 22-accommodating chamber; 23-guide column; 231-limiting plate; 3-screen frame; 4-pushing plate; 41-spring one; 5-limiting block; 51-spring two; 52-limiting claw; 6-embedded hole; 7-flip plate; 71-torsion spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1-5 The utility model provides a technical solution: a rotary flash dryer, comprising a drying barrel 1 and an installation box 2 arranged on the drying barrel 1, wherein a plurality of screen frames 3 are slidably arranged in the installation box 2; further comprising: a pushing plate 4 arranged in the installation box 2, and a limiting block 5 arranged in the installation box 2, through which when one of the screen frames 3 enters a restricted state, the other screen frame 3 can be released from the restriction and pushed out, and embedded holes 6 arranged on both sides of the screen frame 3, through which the embedded holes 6 cooperate with the limiting block 5 to limit the position of the screen frame 3.

[0028] A plurality of guide rails 21 are provided on both sides of the inner surface of the installation box 2, and the screen frame 3 is connected to the installation box 2 through the guide rails 21. A receiving cavity 22 is provided on both sides of the surface of the installation box 2, and the limiting block 5 is arranged in the receiving cavity 22. A guide column 23 is provided in the receiving cavity 22, and a limiting plate 231 is provided on the guide column 23. The movement direction and distance of the limiting block 5 are limited by the cooperation between the limiting plate 231 and the guide column 23.

[0029] The limiting block 5 is slidably set on the guide column 23, and a spring 51 is set between the limiting block 5 and the accommodating chamber 22. A plurality of limiting claws 52 are set on the limiting block 5, and one side of the limiting claw 52 is chamfered. By chamfering one side of the limiting claw 52 so that when the chamfered side of the limiting claw 52 is squeezed, the limiting block 5 will be displaced. Through the plurality of limiting claws 52, when one screen frame 3 enters the restricted state, the other screen frame 3 will inevitably be released from the restriction.

[0030] A spring 41 is provided between the push plate 4 and the installation box 2 , and the screen frame 3 is pushed by the push plate 4 , thereby assisting the disassembly of the screen frame 3 .

[0031] The accommodating chamber 22 is arranged at the inner end of the installation box 2, and the limiting claw 52 can be embedded in the embedding hole 6, so that when one screen frame 3 is released from restriction, the other screen frame 3 can be restricted in a very short time.

[0032] When the screen frame 3 is in use, first insert a screen frame 3 into the installation box 2. When the screen frame 3 needs to be replaced, the other screen frame 3 is inserted into the installation box 2 along the guide rail 21. As the screen frame 3 is gradually pushed, the edge of the screen frame 3 is bound to be released from the limiting block 5. Through the arc surface of the limiting claw 52, ​​the screen frame 3 pushes the limiting block 5 and compresses the spring 2 51. Since the limiting block 5 is arranged near the inner end of the installation box 2, after the limiting block 5 is pushed, the screen frame 3 can be restricted by the limiting block 5 through the embedding hole 6 in a very short time. When the limiting block 5 is squeezed, the other limiting claw 52 withdraws from the embedding hole 6 of the restricted screen frame 3, so that the restricted screen frame 3 is released from the restriction and moves outward under the push of the pushing plate 4, thereby completing the replacement of the screen frame 3. At the same time, there is always a screen frame 3 in the drying barrel 1 that is restricted in the installation box 2, so that the equipment needs to be stopped when the screen frame 3 is replaced, and the restricted screen frame 3 will not be displaced due to the vibration of the equipment.

[0033] Embodiment 2

[0034] See also Figure 1-7 , the utility model provides a technical solution: a rotary flash dryer, embodiment 2 is optimized on the basis of embodiment 1;

[0035] A flip plate 7 is rotatably arranged at the outlet of the installation box 2 , a torsion spring 71 is arranged on the rotation axis of the flip plate 7 , and two ends of the torsion spring 71 are respectively connected to the flip plate 7 and the installation box 2 .

[0036] By means of the flip plate 7 provided at the outlet of the installation box 2, after a screen frame 3 is pulled out, the flip plate 7 blocks the outlet of the installation box 2 to prevent the material from being blown out from the outlet of the installation box 2 by the wind flow from below.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary flash dryer, comprising a drying barrel (1) and a mounting box (2) arranged on the drying barrel (1), characterized in that: A plurality of screen frames (3) are slidably arranged in the installation box (2); Also included are: A push plate (4), wherein the push plate (4) is arranged in the installation box (2); A limiting block (5), wherein the limiting block (5) is arranged in the installation box (2), and when one of the screen frames (3) enters a restricted state, the other screen frame (3) can be released from restriction and pushed out by cooperating with the pushing plate (4); Embedded holes (6), wherein the embedded holes (6) are arranged on both sides of the screen frame (3), and the position of the screen frame (3) is limited by the cooperation between the embedded holes (6) and the limiting blocks (5).

2. The spin flash dryer according to claim 1, characterized in that: A plurality of guide rails (21) are provided on both sides of the inner surface of the installation box (2); the screen frame (3) is connected to the installation box (2) via the guide rails (21); a receiving cavity (22) is provided on both sides of the surface of the installation box (2); the limiting block (5) is arranged in the receiving cavity (22); a guide column (23) is provided in the receiving cavity (22); and a limiting plate (231) is provided on the guide column (23).

3. The spin flash dryer according to claim 2, characterized in that: The limiting block (5) is slidably arranged on the guide column (23), a second spring (51) is arranged between the limiting block (5) and the accommodating cavity (22), a plurality of limiting claws (52) are arranged on the limiting block (5), and one side of the limiting claws (52) is chamfered.

4. The spin flash dryer according to claim 3, characterized in that: A spring 1 (41) is provided between the push plate (4) and the installation box (2).

5. The spin flash dryer according to claim 4, characterized in that: The accommodating cavity (22) is arranged at the inner end of the installation box (2), and the limiting claw (52) can be embedded in the embedding hole (6).

6. The spin flash dryer according to claim 5, characterized in that: A flip plate (7) is rotatably arranged at the outlet of the installation box (2), a torsion spring (71) is arranged on the rotation axis of the flip plate (7), and two ends of the torsion spring (71) are respectively connected to the flip plate (7) and the installation box (2).

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