Double-spiral paddle drying machine

Abstract

The utility model relates to the technical field of dryers, and one embodiment of the utility model provides a double-spiral paddle dryer which comprises a shell and a pair of propeller blades, the pair of propeller blades are rotationally connected to the interior of the shell, a transmission gear is arranged at one ends of the propeller blades, the output end of a driving motor is connected with one propeller blade, and the output end of the driving motor is connected with the other propeller blade. The storage box is arranged outside the shell, the feeding assembly is arranged at the top of the shell, the exhaust heat exchange assembly is arranged at the top of the shell, the conveying pipeline is connected into one side of the storage box, a first conveying auger is arranged in the conveying pipeline, an outer cover is arranged at the top of the shell, and the conveying pipeline is communicated with the outer cover. According to the technical scheme, the technical problems that in the prior art, waste activated carbon particles are uneven and large in viscosity, a common feeding device difficultly enables the waste activated carbon particles to evenly enter a drying machine, material distribution is uneven, stirring and heat transfer are affected by partial area accumulation, partial areas are sparse, heat is wasted, and the overall production efficiency is reduced are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of dryer technology, and more specifically, to a double-helix paddle dryer. Background Technology

[0002] In the treatment of spent activated carbon, the double-spiral paddle dryer plays a crucial role in removing moisture and preparing for regeneration. However, current dryers of this type have significant drawbacks in the feeding and discharging stages. Spent activated carbon particles are uneven and highly viscous, making it difficult for ordinary feeding devices to ensure they enter the dryer evenly. This results in uneven material distribution, with some areas accumulating and affecting mixing and heat transfer, while other areas are sparse, wasting heat and reducing overall production efficiency. During discharge, due to the adsorption and stickiness of the spent activated carbon, it easily adheres to the discharge port and channels, causing poor discharge, material residue that reduces the recovery rate, and often leads to blockages, requiring frequent shutdowns for cleaning. This seriously affects production continuity, and the deterioration of residual material also reduces the quality of subsequent processing. Improvements are urgently needed. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a double-spiral paddle dryer, which solves the technical problems in the prior art where the waste activated carbon particles are uneven and highly viscous, making it difficult for ordinary feeding devices to uniformly feed them into the dryer, resulting in uneven material distribution, accumulation in some areas affecting stirring and heat transfer, and sparse areas wasting heat and reducing overall production efficiency.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a double-helix paddle dryer, comprising:

[0005] The housing and a pair of propeller blades, both of which are rotatably connected inside the housing;

[0006] A pair of transmission gears and a drive motor, wherein the transmission gears are disposed at one end of the propeller blades and the output end of the drive motor is connected to one of the propeller blades;

[0007] A storage bin and a feeding assembly, wherein the storage bin is disposed outside the housing and the feeding assembly is disposed on the top of the housing;

[0008] An exhaust heat exchange assembly is disposed on the top of the housing;

[0009] A discharge assembly, wherein the discharge assembly is disposed within the housing;

[0010] The feeding assembly includes a conveying pipe connected to one side of the storage tank, a first conveying auger is installed inside the conveying pipe, an outer cover is installed on the top of the outer shell, and the conveying pipe is connected to the outer cover.

[0011] As a further technical solution, a side cover is provided on the side surface of the outer cover, a telescopic cylinder is provided on the outer surface of the side cover, a sealing plate is slidably connected between the side cover and the inner surface of the outer cover, and the sealing plate is connected to the output end of the telescopic cylinder.

[0012] As a further technical solution, a second cylinder is provided on one side of the storage box, and a pusher is provided at the output end of the second cylinder. The other end of the pusher is slidably connected to the outer shell, and the pusher has a grid-like structure.

[0013] As a further technical solution, the exhaust heat exchange assembly includes an exhaust pipe, which is disposed on the top of the housing. A heat exchanger is disposed on the top of the housing and connected to the exhaust pipe.

[0014] As a further technical solution, the discharge assembly includes a partition, which is movably fitted to the outside of a pair of propeller blades. A third cylinder is installed on one side of the housing, and the output end of the third cylinder is connected to the partition.

[0015] As a further technical solution, a discharge hood is provided at the bottom of the outer shell, a discharge pipe is connected to the bottom of the discharge hood, a second conveying auger is provided inside the discharge pipe, and the surface at the connection between the inner bottom surface of the outer shell and the discharge hood is an inclined structural surface.

[0016] As a further technical solution, both ends of the bottom surface of the storage box are inclined structural surfaces, and the pusher frame is connected at an inclined angle.

[0017] As a further technical solution, the partition is sealed and slidably fitted to the inner wall of the outer shell.

[0018] As a further technical solution, the sealing plate is matched with the internal dimensions of the outer cover.

[0019] The beneficial effects of the embodiments disclosed herein are as follows:

[0020] 1. In this disclosure, a feeding assembly is provided. The first conveying auger transports the waste activated carbon to the outer cover, dispersing it into the outer shell and avoiding material accumulation. The pusher breaks up the sticky waste activated carbon, ensuring the uniformity of feeding and reducing stirring and heat transfer problems caused by uneven material distribution, thereby improving drying efficiency. The sealing plate can control the opening and closing of the feeding channel, reducing heat loss and improving the drying effect.

[0021] 2. In this disclosure, a discharge component is provided. The partition plate, together with the third cylinder, can accurately control the discharge area, ensuring that the dried waste activated carbon can smoothly enter the discharge hood. The inclined inner bottom surface of the outer shell and the second conveying auger in the discharge pipe effectively avoid material residue, making the discharge smoother, reducing the discharge time, and improving the overall operating efficiency of the equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0024] Figure 2 This is an isometric drawing of the present disclosure;

[0025] Figure 3 This is an isometric sectional view of the present disclosure;

[0026] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0027] In the diagram: 1. Outer shell; 2. Propeller blade; 3. Transmission gear; 4. Drive motor; 5. Storage bin; 6. Feeding assembly; 6-1. Conveying pipe; 6-2. First conveying auger; 6-3. Outer cover; 6-4. Side cover; 6-5. Telescopic cylinder; 6-6. Sealing plate; 6-7. Second cylinder; 6-8. Pusher frame; 7. Exhaust heat exchange assembly; 7-1. Exhaust pipe; 7-2. Heat exchanger; 8. Discharge assembly; 8-1. Baffle plate; 8-2. Third cylinder; 8-3. Discharge hood; 8-4. Discharge pipe; 8-5. Second conveying auger. Detailed Implementation

[0028] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0029] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0031] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] like Figures 1-4 As shown, a double-helix paddle dryer according to an embodiment of the present disclosure is illustrated, comprising:

[0035] The outer casing 1 and a pair of propeller blades 2 are rotatably connected inside the outer casing 1;

[0036] A pair of transmission gears 3 and a drive motor 4, the transmission gears 3 are located at one end of the propeller blade 2, and the output end of the drive motor 4 is connected to one of the propeller blades 2;

[0037] The storage bin 5 and the feeding assembly 6 are provided. The storage bin 5 is located outside the housing 1, and the feeding assembly 6 is located on the top of the housing 1.

[0038] Exhaust heat exchanger 7 is disposed on the top of housing 1;

[0039] The discharge assembly 8 is disposed in the outer casing 1;

[0040] The feeding assembly 6 includes a conveying pipe 6-1, which is connected to one side of the storage bin 5. A first conveying auger 6-2 is installed inside the conveying pipe 6-1. An outer cover 6-3 is installed on the top of the outer shell 1. The conveying pipe 6-1 is connected to the outer cover 6-3. A side cover 6-4 is installed on the side surface of the outer cover 6-3. A telescopic cylinder 6-5 is installed on the outer surface of the side cover 6-4. A sealing plate 6-6 is slidably connected between the side cover 6-4 and the inner part of the outer cover 6-3. The sealing plate 6-6 is connected to the output end of the telescopic cylinder 6-5. A second cylinder 6-7 is installed on one side of the storage bin 5. A pusher 6-8 is installed at the output end of the second cylinder 6-7. The other end of the pusher 6-8 is slidably connected to the outer shell 1. The pusher 6-8 has a grid-like structure.

[0041] In some examples, to achieve the effect of dispersing the waste activated carbon, a feeding assembly 6 is designed. This assembly includes a conveying pipe 6-1 and a first conveying auger 6-2 inside. One end of the conveying pipe 6-1 is located inside the storage bin, and the activated carbon can be conveyed upwards by the first conveying auger 6-2. The top of the outer shell 1 is provided with an outer cover 6-3 that communicates with the conveying pipe 6-1. The outer cover 6-3 communicates with the inside of the outer shell 1, allowing the activated carbon to disperse and fall into the outer shell 1. The side surface of the outer cover 6-3 is provided with a side cover 6-4, and a telescopic cylinder 6-5 is installed on the outer surface of the side cover 6-4. -4 is slidably connected to the outer cover 6-3 and the output end of the telescopic cylinder 6-5. The sealing plate 6-6 can be controlled by the telescopic cylinder 6-5 to close the outer cover 6-3, preventing material and flowing air from entering. A second cylinder 6-7 is provided on one side of the storage box 5. The output end of the cylinder is provided with a pusher 6-8 that is slidably connected to the outer shell 1. The pusher 6-8 can be controlled by the second cylinder 6-7 to move left and right repeatedly. The pusher 6-8 has a grid-like structure, which can break up the activated carbon that is stuck together when it moves repeatedly, so that it can maintain a certain loose state during transportation.

[0042] like Figures 1-4 As shown, this embodiment proposes an exhaust heat exchange assembly 7, which includes an exhaust pipe 7-1. The exhaust pipe 7-1 is disposed on the top of the outer shell 1, and a heat exchanger 7-2 is disposed on the top of the outer shell 1. The heat exchanger 7-2 is connected to the exhaust pipe 7-1.

[0043] In some examples, in order to achieve the effect of exhausting waste heat, an exhaust heat exchange component 7 is designed, including an exhaust pipe 7-1 and a heat exchanger 7-2. The heat exchanger 7-2 is fixed to the top of the outer shell 1. The exhaust pipe 7-1 can exhaust the hot air inside the outer shell 1 to the outside. During the exhaust process, the water flowing inside the heat exchanger 7-2 can be heated to achieve the effect of utilizing waste heat.

[0044] like Figures 1-4As shown, this embodiment proposes a discharge assembly 8, which includes a partition 8-1. The partition 8-1 is movably connected to the outside of a pair of propeller blades 2. A third cylinder 8-2 is installed on one side of the outer shell 1. The output end of the third cylinder 8-2 is connected to the partition 8-1. A discharge hood 8-3 is provided at the bottom of the outer shell 1. A discharge pipe 8-4 is connected to the bottom of the discharge hood 8-3. A second conveying auger 8-5 is provided inside the discharge pipe 8-4. The surface at the connection between the inner bottom surface of the outer shell 1 and the discharge hood 8-3 is an inclined structural surface.

[0045] In some examples, to achieve full discharge, a discharge assembly 8 is designed, including a partition 8-1, which is slidably connected to two propeller blades 2, and a third cylinder 8-2, which can control the movement of the partition 8-1. The partition 8-1 can enclose a region inside the outer shell 1. A discharge hood 8-3 is provided at the bottom of the outer shell 1. The discharge hood 8-3 is located inside the enclosed part and is used to discharge material outward. The bottom of the discharge hood 8-3 is connected to a discharge pipe 8-4 and a second conveying auger 8-5. When the partition 8-1 moves, it can connect the discharge hood 8-3 with the inside of the outer shell 1 and enable the activated carbon to be discharged outward.

[0046] For example, such as Figure 3 As shown, both ends of the bottom surface of the storage box 5 are inclined structural surfaces, and the pusher frame 6-8 are connected at an inclined angle.

[0047] In some examples, the inclined structural surface facilitates the concentration of activated carbon at the lower opening of the first conveyor belt, enabling better upward transport of activated carbon.

[0048] For example, such as Figure 3 As shown, the partition 8-1 is sealed and slidably fitted with the inner wall of the outer shell 1.

[0049] In some examples, the sealing effect prevents gas loss from affecting the drying effect.

[0050] For example, such as Figure 4 As shown, the sealing plate 6-6 matches the internal dimensions of the outer cover 6-3.

[0051] In some examples, by using a matching size structure, the sealing plate 6-6 completely seals the interior of the outer cover 6-3, thereby reducing heat loss.

[0052] In actual use: Waste activated carbon is placed in storage box 5, the first conveying auger 6-2 is started, and the waste activated carbon is conveyed from storage box 5 to outer cover 6-3 through conveying pipe 6-1. Telescopic cylinder 6-5 controls the sealing plate 6-6 to open, and the waste activated carbon falls into outer cover 1. Drive motor 4 is started to drive propeller blade 2 to rotate, and the waste activated carbon is stirred and dried. At the same time, exhaust pipe 7-1 of exhaust heat exchange component 7 discharges hot air from the outer cover 1 and the heat exchanger 7-2 recovers the residual heat. After drying, third cylinder 8-2 pushes partition 8-1 to connect discharge hood 8-3 with the inside of outer cover 1. Waste activated carbon falls into discharge hood 8-3 and second conveying auger 8-5 sends it out from discharge pipe 8-4. During this period, pusher 6-8 moves repeatedly under the drive of second cylinder 6-7 to break up the sticky waste activated carbon.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A twin-screw paddle dryer characterized by comprising: Include: The shell (1) and a pair of propeller blades (2), a pair of the propeller blades (2) are rotatably connected inside the shell (1); A pair of transmission gear (3) and drive motor (4), the transmission gear (3) is arranged in the propeller blade (2) one end, the drive motor (4) output end is connected with one of the propeller blade (2); Storage tank (5) and feeding assembly (6), the storage tank (5) is arranged in the shell (1) outside, the feeding assembly (6) is arranged in the shell (1) top; Exhaust heat exchange assembly (7), the exhaust heat exchange assembly (7) is arranged in the shell (1) top; Discharge assembly (8), the discharge assembly (8) is arranged in the shell (1); The feeding assembly (6) includes a conveying pipeline (6-1), the conveying pipeline (6-1) is connected in the storage tank (5) one side, the conveying pipeline (6-1) is provided with first conveying auger (6-2), the shell (1) top is provided with outer cover (6-3), the conveying pipeline (6-1) is communicated with the outer cover (6-3).

2. A twin-screw paddle drier according to claim 1, characterized in that The side surface of the outer cover (6-3) is provided with a side cover (6-4), the outer surface of the side cover (6-4) is provided with a telescopic air cylinder (6-5), the side cover (6-4) is slidably connected with the outer cover (6-3) in the sealing plate (6-6), the sealing plate (6-6) is connected with the output end of the telescopic air cylinder (6-5).

3. A twin-screw paddle drier according to claim 2, characterized in that The side of the storage tank (5) is provided with a second air cylinder (6-7), the output end of the second air cylinder (6-7) is provided with a pushing frame (6-8), the other end of the pushing frame (6-8) is slidably connected with the shell (1), and the pushing frame (6-8) is in a grid structure.

4. A twin-screw paddle drier according to claim 1, characterized in that The exhaust heat exchange assembly (7) includes an exhaust pipeline (7-1), the exhaust pipeline (7-1) is arranged on the top of the shell (1), and the top of the shell (1) is provided with a heat exchanger (7-2), the heat exchanger (7-2) is connected with the exhaust pipeline (7-1).

5. A twin-screw paddle drier according to claim 1, characterized in that The discharge assembly (8) includes a partition plate (8-1), the partition plate (8-1) is movably connected outside a pair of the propeller blades (2), a third air cylinder (8-2) is mounted on one side of the shell (1), and the output end of the third air cylinder (8-2) is connected with the partition plate (8-1).

6. A twin-screw paddle drier according to claim 5, characterized in that The bottom of the shell (1) is provided with a discharge cover (8-3), the bottom of the discharge cover (8-3) is connected with a discharge pipeline (8-4), the discharge pipeline (8-4) is provided with a second conveying auger (8-5), and the surface of the connection between the inner bottom surface of the shell (1) and the discharge cover (8-3) is an inclined structure surface.

7. A twin-screw paddle drier according to claim 3, characterized in that The inner bottom surface of the storage tank (5) is inclined at both ends, and the pushing frame (6-8) is connected at an inclined angle.

8. A twin-screw paddle drier according to claim 5, characterized in that The partition plate (8-1) is sealingly and slidably attached to the inner wall of the shell (1).

9. A twin-screw paddle drier according to claim 2, characterized in that The sealing plate (6-6) matches the inner dimension of the outer cover (6-3).

Images