Closed cycle flash dryer

Abstract

The utility model relates to the field of dryers, in particular to a closed cycle flash dryer which is characterized in that a closed cycle flash dryer body is provided with a feeding channel, one side of the feeding channel is provided with an insertion hole, and an insertion plate is obliquely inserted into the feeding channel through the insertion hole; and a plurality of limiting holes are formed in the two sides of the inserting plate, a balancing weight is vertically and movably arranged on the outer side of the feeding channel and located above the inserting hole, limiting columns are fixedly arranged at the bottom of the balancing weight, and the limiting columns are all matched with the limiting holes in the inserting plate. According to the closed-loop circulation flash evaporation drying machine, materials can be dried through the closed-loop circulation flash evaporation drying machine body, adjustment of the feeding speed of the feeding channel can be achieved by pulling the inserting plate in the feeding channel, and therefore different feeding speeds can be adjusted according to different materials, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a closed-circuit flash drying machine. Background Art

[0002] A closed-loop flash dryer is a highly efficient, energy-efficient drying device widely used in a variety of industries, including the chemical, pharmaceutical, and food industries. The closed-loop flash dryer utilizes a circulating stream of hot air to heat and dry the material, while also recovering energy.

[0003] Traditional closed-circuit flash dryers currently on the market often struggle to adjust the material loading speed. Different materials have varying drying characteristics and requirements, and the loading speed directly impacts the material's residence time and heating within the dryer. This inability to adjust the loading speed can lead to under-drying or over-drying, compromising product quality. Therefore, a closed-circuit flash dryer with easily adjustable loading speed is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a closed-circuit flash drying machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A closed-circuit flash dryer includes a closed-circuit flash dryer body, a feed channel is provided on the closed-circuit flash dryer body, a plug hole is provided on one side of the feed channel, and a plug plate is obliquely inserted into the feed channel through the plug hole; multiple limit holes are provided on both sides of the plug plate, a counterweight block is vertically movably provided on the outer side of the feed channel above the plug hole, a limit column is fixedly provided on the bottom of the counterweight block, and the limit columns are adapted to the limit holes on the plug plate.

[0007] In addition, a preferred structure is that a feed hopper is provided on the top of the feed channel, and a fixing seat is fixedly provided on the outside of the feed channel above the insertion hole.

[0008] In addition, a preferred structure is that side cavities are provided on the inner walls on both sides of the feed channel corresponding to the insert plates, and the side cavities are arranged at an angle.

[0009] In addition, a preferred structure is that the fixing seat is arranged to be inclined, and the inclination angles of the fixing seat, the insertion hole, the side cavity and the insertion plate are the same.

[0010] In addition, a preferred structure is that the counterweight block is located above the fixing seat, and the bottom surface of the counterweight block is adapted to the top surface of the fixing seat.

[0011] In addition, a preferred structure is that a vertical limiting column is provided downwardly at the bottom of the fixing seat, and through holes are adapted to be opened on the fixing seat corresponding to the limiting columns.

[0012] The beneficial effects of the utility model are as follows: the material can be dried by the closed-circuit flash dryer body, and the feeding speed of the feed channel can be adjusted by pulling out the insert plate in the feed channel, which not only can adjust different feeding speeds according to different materials, but also is more convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a closed-circuit flash dryer proposed by the utility model;

[0014] Figure 2 This is a structural schematic diagram of a feed channel of a closed-circuit flash dryer proposed in the present invention;

[0015] Figure 3 for Figure 2 Schematic diagram of the internal structure of the feed channel;

[0016] Figure 4 for Figure 3 A schematic diagram of the structure when the plug-in board is pulled out;

[0017] Figure 5 for Figure 3 A schematic diagram of the structure when the insert plate and the counterweight are hidden;

[0018] Figure 6 This is a structural schematic diagram of a plug-in board of a closed-circuit flash dryer proposed by the present invention;

[0019] Figure 7 This is a structural schematic diagram of a counterweight block for a closed-circuit flash dryer proposed by the utility model.

[0020] In the figure: 1 closed-loop flash dryer body, 2 feed channel, 21 feed hopper, 22 fixing seat, 221 through hole, 23 insertion hole, 24 side cavity, 3 insert plate, 31 limit hole, 4 counterweight block, 41 limit column. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-7A closed-circuit flash dryer includes a closed-circuit flash dryer body 1, which is provided with a feed channel 2. A socket 23 is formed on one side of the feed channel 2, and a plug plate 3 is obliquely inserted into the feed channel 2 through the socket 23. A plurality of limiting holes 31 are formed on both sides of the plug plate 3. A counterweight 4 is vertically and movably provided on the outer side of the feed channel 2 above the socket 23. A limiting post 41 is fixedly provided at the bottom of the counterweight 4, and the limiting post 41 is adapted to fit within the limiting holes 31 on the plug plate 3.

[0023] Among them, the principle of the closed-loop flash dryer body 1 is to use nitrogen to replace the air in the system so that the oxygen content in the system reaches the safe concentration of the solvent, and the heated circulating nitrogen enters the flash dryer to provide a heat source for the drying process. After the wet material is sent into the dryer, it is crushed and rotated by the impact of the high-temperature airflow, and is entrained and lifted, so that the moisture in the material evaporates quickly to complete the drying. After that, the dried material is separated and collected by a cyclone separator and a bag dust collector, and the hot and humid gas enters the condenser to condense and recover the solvent, and finally the dry nitrogen after condensation and dehumidification is recycled. It is worth noting that the specific structure and working method of the closed-loop flash dryer body 1 are both existing technologies, so they will not be elaborated on.

[0024] A feed hopper 21 is provided on the top of the feed channel 2 , and a fixing seat 22 is fixedly provided on the outside of the feed channel 2 above the insertion hole 23 .

[0025] Among them, the inner walls on both sides of the feed channel 2 are adapted to open side cavities 24 corresponding to the inserting plates 3, and the side cavities 24 are inclined. Through the setting of the side cavities 24, the inserting plates 3 can be guided.

[0026] The fixing seat 22 is tilted, and the fixing seat 22, the insertion hole 23, the side cavity 24 and the inserting plate 3 have the same tilt angle.

[0027] Wherein, the counterweight 4 is located above the fixing seat 22, and the bottom surface of the counterweight 4 is adapted to the top surface of the fixing seat 22. This prevents the counterweight 4 from falling off from the top of the fixing seat 22.

[0028] A vertical limiting column 41 is provided downwardly at the bottom of the fixing seat 22 , and a through hole 221 is adapted to be opened on the fixing seat 22 corresponding to the limiting column 41 .

[0029] In this embodiment, the user can pour the material to be dried into the feed hopper 21, and then the material enters the closed-loop flash dryer body 1 through the feed channel 2 for drying.

[0030] Furthermore, when the user needs to control the speed at which materials enter the closed-loop flash dryer body 1, they only need to adjust the insert plate 3. When the user pushes the insert plate 3 into the feed channel 2, the material discharge area within the feed channel 2 is reduced, thereby reducing the material loading speed of the feed channel 2. When the user pulls the insert plate 3 outward, the material discharge area within the feed channel 2 is increased, thereby increasing the material loading speed of the feed channel 2.

[0031] Furthermore, when the user needs to adjust the plugboard 3, he only needs to lift the counterweight 4 vertically upward, thereby driving the limiting post 41 to disengage from the limiting hole 31. In this way, the limiting post 41 can release the clamping of the plugboard 3, and the user can now adjust the position of the plugboard 3.

[0032] After the user has finished adjusting the position of the plugboard 3, he only needs to lower the counterweight 4 onto the fixing seat 22. The limiting post 41 at the bottom of the counterweight 4 passes through the through hole 221 on the fixing seat 22 and is inserted into the limiting hole 31 on the plugboard 3, thereby locking the plugboard 3 again.

[0033] Furthermore, when the inserting plate 3 is located in the feed channel 2 , the limiting holes 31 on both sides of the inserting plate 3 are located in the side cavity 24 , so that the material will not pass through the limiting holes 31 on the inserting plate 3 .

[0034] In the present invention, the material can be dried by the closed-loop flash dryer body 1, and the feeding speed of the feed channel 2 can be adjusted by pulling the insert plate 3 in the feed channel 2. This not only allows different feeding speeds to be adjusted according to different materials, but also makes the operation more convenient.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A closed-circuit flash dryer, comprising a closed-circuit flash dryer body (1), characterized in that: The closed-circuit flash dryer body (1) is provided with a feed channel (2), a plug hole (23) is provided on one side of the feed channel (2), and a plug plate (3) is obliquely inserted into the feed channel (2) through the plug hole (23); A plurality of limiting holes (31) are provided on both sides of the inserting plate (3); a counterweight (4) is vertically movably provided on the outer side of the feed channel (2) above the inserting hole (23); a limiting column (41) is fixedly provided at the bottom of the counterweight (4), and the limiting column (41) is adapted to the limiting hole (31) on the inserting plate (3).

2. A closed-circuit flash dryer according to claim 1, characterized in that: A feed hopper (21) is provided at the top of the feed channel (2), and a fixing seat (22) is fixedly provided on the outside of the feed channel (2) above the insertion hole (23).

3. A closed-circuit flash dryer according to claim 2, characterized in that: Side cavities (24) are adapted to be opened on the inner walls of both sides of the feed channel (2) corresponding to the inserting plates (3), and the side cavities (24) are arranged obliquely.

4. A closed-circuit flash dryer according to claim 3, characterized in that: The fixing seat (22) is arranged to be inclined, and the inclination angles of the fixing seat (22), the insertion hole (23), the side cavity (24) and the inserting plate (3) are the same.

5. A closed-circuit flash dryer according to claim 4, characterized in that: The counterweight block (4) is located above the fixing seat (22), and the bottom surface of the counterweight block (4) is adapted to the top surface of the fixing seat (22).

6. A closed-circuit flash dryer according to claim 5, characterized in that: A vertical limiting column (41) is provided downwardly at the bottom of the fixing seat (22), and corresponding limiting columns (41) are adapted to be opened on the fixing seat (22) with through holes (221).

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