Flash dryer capable of preventing material accumulation

Abstract

The utility model relates to the technical field of drying machines, in particular to a flash drying machine capable of preventing material accumulation, which comprises a machine body, a plurality of supporting seats, a feed inlet, a sealing plate and a connecting mechanism, the supporting seats are arranged at the bottom of the machine body, the feed inlet is arranged at the top of the machine body, and the sealing plate is arranged at the bottom of the machine body. The feeding port is communicated with the interior of the machine body, a Teflon coating is arranged on the inner wall of the feeding port, the sealing plate is connected with the machine body through the connecting mechanism, the connecting mechanism comprises a cylinder, a cylinder, a gear, a first telescopic air cylinder, a clamping plate, a second telescopic air cylinder and a limiting plate, the bottom of the cylinder is connected with the top of the machine body, and the bottom of the cylinder is connected with the bottom of the machine body. One end of the cylinder is arranged on the outer wall of the cylinder in a sleeved mode, a circular groove matched with the cylinder is formed in the cylinder, the gear is connected to the outer wall of the cylinder in a sleeved mode, and the flash drying machine capable of preventing material accumulation solves the problem that an existing device is poor in dustproof effect.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a flash dryer that can prevent material accumulation. Background Technology

[0002] As is well known, a flash dryer is a device that uses high-speed rotating airflow and agitator to achieve rapid drying of materials. Material accumulation (especially at the feed inlet) is a common problem affecting its drying efficiency and stability. To solve the problem of material accumulation at the feed inlet, a Teflon coating is installed inside the feed inlet. The Teflon coating is an effective anti-accumulation measure, especially suitable for highly viscous and easily adhered materials, thereby effectively reducing material accumulation.

[0003] In existing flash dryers, the feed inlet is typically exposed to the external environment without any obstruction in the design to prevent material accumulation. When the equipment is stopped and unattended, external dust, debris, insects, and other contaminants can easily enter the machine through the feed inlet opening. Especially in high-dust workshops and outdoor operations, particulate contaminants with a diameter of ≥0.5mm may fall into the feed inlet with the airflow or gravity and accumulate in the dead corners inside the machine. This not only increases the risk of material contamination (such as the mixing of metal fragments and fiber impurities) but may also breed microorganisms (such as mold growth in high humidity), affecting the stability of subsequent drying processes and product quality. In addition, the open feed inlet lacks physical barriers, which may cause equipment failure due to accidental contact by personnel or falling foreign objects, further reducing production safety. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a flash dryer that can prevent material accumulation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flash dryer capable of preventing material accumulation, comprising a machine body, a support base, a feed inlet, a sealing plate, and a connecting mechanism. The support base is disposed at the bottom of the machine body, and several support bases are provided. The feed inlet is disposed at the top of the machine body and communicates with the interior of the machine body. The inner wall of the feed inlet is coated with Teflon. The sealing plate is connected to the machine body through the connecting mechanism. The connecting mechanism includes a cylinder, a gear, a first telescopic cylinder, a clamping plate, a second telescopic cylinder, and a limiting plate. The bottom of the cylinder is connected to the top of the machine body. One end of the cylindrical sleeve is fitted onto the outer wall of the cylinder. A circular groove matching the cylinder is formed on the cylindrical sleeve. The gear is fitted onto the outer wall of the cylindrical sleeve and is fixedly connected to the outer wall of the cylindrical sleeve. One end of the first telescopic cylinder is connected to the top of the machine body, and the other end of the first telescopic cylinder is connected to the clamping plate. The clamping plate and the gear are engaged with each other. One end of the second telescopic cylinder is connected to the clamping plate, and the other end of the second telescopic cylinder is connected to one end of the limiting plate. The limiting plate is in contact with the top of the gear.

[0008] To facilitate operation of the equipment, the present invention is improved by providing a controller on the front of the machine body, the controller being electrically connected to the first telescopic cylinder and the controller being electrically connected to the second telescopic cylinder.

[0009] To achieve an anti-slip effect, the present invention is improved by providing an anti-slip layer at the bottom of the support base, and the anti-slip layer is fixedly connected to the bottom of the support base.

[0010] To improve the anti-slip effect, the present invention is improved by using a rubber material for the anti-slip layer.

[0011] To improve stability, this utility model is improved by having several of the aforementioned support seats arranged symmetrically.

[0012] To facilitate the engagement of the card plate and the gear, the present invention is improved in that the gear is matched with the card plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a flash dryer that can prevent material accumulation, and has the following beneficial effects:

[0015] This flash dryer, designed to prevent material accumulation, provides protection when the equipment is idle by sealing the sealing plate with the feed inlet. The sealing plate is fitted with annular elastic sealing rings (such as food-grade silicone with a compression rate of 20%-30%). When the sealing plate is closed, the sealing rings tightly abut against the flat sealing surface of the feed inlet, forming a uniform compression sealing layer. This effectively prevents external dust, debris, and insects from entering, achieving a protection level of IP55 according to GB / T4208 standard, ensuring that the interior of the machine is free from contamination when unattended.

[0016] When the sealing plate needs to be replaced due to wear of the sealing ring or deformation of the sealing plate after long-term use, it can be quickly disassembled and replaced through the connecting mechanism. The specific operation is as follows: triggered by the controller, the first telescopic cylinder drives the clamping plate to completely retract from the gear tooth groove, and at the same time the second telescopic cylinder drives the limit plate to separate from the gear, releasing the axial restriction on the cylinder. At this time, the sealing plate is installed only through the clearance fit between the cylinder and the column (tolerance H7 / g6). The operator can lift the sealing plate assembly vertically upwards. The disassembly takes about minutes. When replacing, align the cylinder of the new sealing plate with the column and insert it, ensuring that the sealing ring fits tightly with the feed port plane. Then, reset the cylinder through the controller to make the clamping plate and the gear re-engage and lock. This design adopts a planar sealing structure and achieves reliable sealing through deformation compensation of the elastic sealing ring. No special tools are required for maintenance, which significantly improves the convenience of operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the axial structure of this utility model;

[0020] Figure 4 This utility model Figure 1 The front view;

[0021] In the diagram: 1. Machine body; 2. Support base; 3. Feed inlet; 4. Sealing plate; 5. Connecting mechanism; 6. Cylinder; 7. Cylindrical tube; 8. Gear; 9. First telescopic cylinder; 10. Clamping plate; 11. Second telescopic cylinder; 12. Limiting plate; 13. Controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 A flash dryer capable of preventing material accumulation includes a body 1, a support base 2, a feed inlet 3, a sealing plate 4, and a connecting mechanism 5. The support base 2 is located at the bottom of the body 1, and several support bases 2 are provided. The feed inlet 3 is located at the top of the body 1 and communicates with the interior of the body 1. The inner wall of the feed inlet 3 is coated with Teflon. The sealing plate 4 is connected to the body 1 via the connecting mechanism 5. The connecting mechanism 5 includes a cylinder 6, a barrel 7, a gear 8, a first telescopic cylinder 9, a clamping plate 10, a second telescopic cylinder 11, and a limiting plate 12. The bottom of the cylinder 6 is connected to the body 1. The top of the body 1 is connected to the cylinder 7, one end of which is fitted onto the outer wall of the cylinder 6. A circular groove matching the cylinder 6 is formed on the cylinder 7. The gear 8 is fitted onto the outer wall of the cylinder 7 and is fixedly connected to the outer wall of the cylinder 7. One end of the first telescopic cylinder 9 is connected to the top of the body 1, and the other end of the first telescopic cylinder 9 is connected to the clamping plate 10. The clamping plate 10 and the gear 8 are engaged with each other. One end of the second telescopic cylinder 11 is connected to the clamping plate 10, and the other end of the second telescopic cylinder 11 is connected to one end of the limiting plate 12. The limiting plate 12 contacts the top of the gear 8.

[0024] Working principle: After the equipment is placed in the designated position, it is stably supported by the support base 2 and connected to external mains power. The machine body 1 adopts the structure of a conventional flash dryer on the market. Its internal structure and drying principle will not be described in detail here. When using the equipment, the operation procedure is as follows:

[0025] When it is necessary to open the feed inlet, such as Figure 1As shown, the operator first activates the second telescopic cylinder 11, extending its piston rod to its maximum stroke, causing the limiting plate 12 to move upward and separate from the top surface of the gear 8, thus releasing the axial limit. Then, the operator activates the first telescopic cylinder 9, causing its piston rod to move downward, causing the clamping plate 10 to disengage from the tooth groove of the gear 8, releasing the circumferential lock. At this point, the operator can manually rotate the cylinder 7 180° clockwise on the cylinder 6 (the limiting plate 12 remains in contact with the top surface of the gear 8, only restricting the axial movement of the cylinder 7, without affecting the rotation). After rotation to the desired position, the sealing plate 4 and the feed inlet 3... Completely separated, with the opening exposed, hold the sealing plate 4 and reverse the first telescopic cylinder 9 to raise its piston rod, causing the clamping plate 10 to re-enter the corresponding tooth groove after the gear 8 has rotated; at the same time, activate the second telescopic cylinder 11, causing the piston rod to retract and drive the limiting plate 12 to descend, contacting the top surface of the gear 8 again to form a double lock. If the first telescopic cylinder 9 rises too high, causing the limiting plate 12 to not contact the gear 8, it can be finely adjusted to descend to the contact position. After locking is completed, the material can be poured into the machine body 1 through the feed port 3, and the equipment can be started for drying processing. After completion, the material is discharged.

[0026] The Teflon coating on the inner wall of the feed inlet 3 is made of polytetrafluoroethylene and formed into a dense layer with a thickness of 50-80μm through a high-temperature spraying process. The surface energy of this coating is as low as 18.5mN / m and the material contact angle is ≥110°. With its unique non-sticky surface characteristics, it can reduce the adhesion of highly viscous materials (such as paste materials with a moisture content of ≥30%) to the inner wall of the feed inlet 3 to less than 1 / 5 of that of conventional metal surfaces. Actual measurements show that it can reduce the amount of material accumulation by more than 65%, effectively avoiding the problems of fermentation and deterioration or decreased drying efficiency caused by material retention.

[0027] After the work is completed, restore the equipment to its original state. Figure 1 Initial state: The unlocking operation is performed again by the controller. The cylinder 7 is manually rotated 180° counterclockwise so that the sealing plate 4 is reset to cover the feed inlet 3. Then, the locking is completed by the action of the double cylinder to prevent external impurities from entering the machine body through the feed inlet when the equipment is idle, causing pollution.

[0028] When the sealing plate 4 needs to be replaced due to long-term use, such as Figure 1 As shown, the first telescopic cylinder 9 is activated to raise its piston rod to the maximum distance, causing the clamping plate 10 to completely separate from the gear 8; at this time, the operator can lift the sealing plate 4 upwards to separate the cylinder 7 from the cylinder 6, completing the disassembly. When replacing, align the cylinder 7 of the new part with the cylinder 6 and insert it, and lock it through the connecting mechanism 5. The new part can be purchased directly from the manufacturer. The installation steps are the reverse of the disassembly process. Those skilled in the art can understand the operation method through the above steps.

[0029] The first telescopic cylinder 9 and the second telescopic cylinder 11 described in this article both adopt commercially available electric drive modules. Their control logic is based on conventional electrical control principles in the field of industrial automation. The control principle, wiring method and component selection of this type of drive technology are common knowledge to those skilled in the art, so they will not be described in detail in this article.

[0030] To optimize the ease of operation and automation of the equipment, this embodiment integrates a controller 13 (industrial-grade PLC control module) on the front of the machine body 1. It establishes real-time control connections with the first telescopic cylinder 9 and the second telescopic cylinder 11 through electrical circuits. Operators can input commands through the touch interface of the controller 13. After being parsed by the built-in processor, the commands are sent to the solenoid valves of the cylinders to precisely control the extension and retraction stroke and start / stop status of the piston rod. This enables one-button operation of actions such as unlocking, rotating, and locking the sealing plate 4. This integrated control design reduces manual intervention, ensures the coordination and accuracy of the dual cylinder actions, and supports parameter preset and status monitoring, significantly improving the intelligent operation level of the equipment.

[0031] To address the issue of slippage of support base 2 on smooth surfaces, this embodiment adds an anti-slip layer to the bottom of support base 2 to enhance stability. The anti-slip layer is made of high-strength rubber and is rigidly fixed to the bottom of support base 2 through a vulcanization process, forming a tightly fitted integrated structure. The surface of the rubber anti-slip layer is designed with dense serrations (2-3mm deep, 5-8mm spacing), which can increase the coefficient of friction with the ground to over 0.6. Compared with traditional support bases, the sliding friction resistance is increased by more than 3 times, effectively suppressing the risk of displacement of the equipment during operations such as feeding and rotating the sealing plate, ensuring that the dryer maintains reliable support in various working environments.

[0032] To further enhance the anti-slip performance of the support base, the anti-slip layer in this embodiment is made of highly elastic rubber. This rubber material has a Shore hardness of 60-70HA, and its molecular chain structure can undergo significant deformation under pressure, closely conforming to the microscopic uneven structure of the ground. At the same time, the surface friction coefficient can reach 0.5-0.8, which is 40%-70% higher than that of metal support surfaces. Through the optimization of materials, the anti-slip layer can not only meet the anti-slip requirements of smooth ground, but also provide a cushioning and shock absorption effect on rough ground, achieving dual optimization of anti-slip performance and environmental adaptability.

[0033] To enhance the overall stability of the equipment, this embodiment adopts a symmetrical layout design for the support bases 2. Multiple support bases 2 are symmetrically distributed with the central axis of the machine body 1 as the reference. By using the principle of geometric symmetry, the weight of the equipment is evenly borne, and the force deviation of each support point is controlled within 5%. This symmetrical arrangement can effectively counteract the eccentric torque generated by operations such as feeding and plate rotation, avoid the equipment from tilting or shaking, and improve the impact resistance, ensuring that the flash dryer maintains dynamic balance in high-frequency operation, thus meeting the stringent requirements of industrial scenarios for equipment stability.

[0034] To ensure precise and reliable engagement between the clamping plate 10 and the gear 8, this embodiment features a matching optimization design for their structural parameters. Specifically, the gear 8 adopts an involute straight tooth profile design with a module of 2.5mm, a pressure angle of 20°, and a tooth width of 15mm. The clamping teeth of the clamping plate 10 are completely conjugate with those of the gear 8, and the tooth groove width tolerance is controlled at H7 level to ensure that the engagement gap is ≤0.1mm. This precise matching design allows the clamping plate 10 to smoothly engage with the corresponding tooth groove of the gear 8 under cylinder drive, forming a surface contact mechanical locking structure that can withstand ≥500N of circumferential shear force, effectively preventing accidental loosening during operation and ensuring the safety and stability of equipment operation.

[0035] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flash dryer capable of preventing material accumulation, comprising a body (1), a support base (2), a feed inlet (3), a sealing plate (4), and a connecting mechanism (5), characterized in that: The support base (2) is located at the bottom of the machine body (1), and there are several support bases (2). The feed inlet (3) is located at the top of the machine body (1) and communicates with the interior of the machine body (1). The inner wall of the feed inlet (3) is coated with Teflon. The sealing plate (4) is connected to the machine body (1) through the connecting mechanism (5). The connecting mechanism (5) includes a cylinder (6), a cylindrical tube (7), a gear (8), a first telescopic cylinder (9), a clamping plate (10), a second telescopic cylinder (11), and a limiting plate (12). The bottom of the cylinder (6) is connected to the top of the machine body (1), and one end of the cylindrical tube (7) is fitted onto the bottom of the machine body (1). The outer wall of the cylinder (6) has a circular groove that matches the cylinder (6). The gear (8) is sleeved on the outer wall of the cylinder (7) and is fixedly connected to the outer wall of the cylinder (7). One end of the first telescopic cylinder (9) is connected to the top of the machine body (1), and the other end of the first telescopic cylinder (9) is connected to the clamping plate (10). The clamping plate (10) and the gear (8) are engaged with each other. One end of the second telescopic cylinder (11) is connected to the clamping plate (10), and the other end of the second telescopic cylinder (11) is connected to one end of the limiting plate (12). The limiting plate (12) is in contact with the top of the gear (8).

2. A flash dryer capable of preventing material accumulation according to claim 1, characterized in that: The front of the body (1) is provided with a controller (13), which is electrically connected to the first telescopic cylinder (9) and the second telescopic cylinder (11).

3. A flash dryer capable of preventing material accumulation according to claim 2, characterized in that: The bottom of the support base (2) is provided with an anti-slip layer, which is fixedly connected to the bottom of the support base (2).

4. A flash dryer capable of preventing material accumulation according to claim 3, characterized in that: The anti-slip layer is made of rubber.

5. A flash dryer capable of preventing material accumulation according to claim 4, characterized in that: Several of the aforementioned support bases (2) are symmetrically arranged.

6. A flash dryer capable of preventing material accumulation according to claim 5, characterized in that: The gear (8) is matched with the card plate (10).

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