Slat dryer discharge seal

Abstract

The utility model relates to a kind of sealing devices for discharge port of scraper dryer, including discharge pipe, its rear end is fixed on the one side end plate of drying cylinder barrel, the discharge hole on the end plate is located in discharge pipe, the lower end of the discharge pipe is provided with drop port;Blanking plate, it is installed in the front end of discharge pipe;Cylinder, it is fixedly arranged on blanking plate;Sealing plug, it is located in discharge pipe, and is connected with the push rod of cylinder, the cylinder drives sealing plug to move back and forth in discharge pipe, when cylinder extends, sealing plug is driven to block discharge port, when cylinder retracts, discharge port opens. By compressed air in cylinder to push sealing plug, the opening and closure of discharge port can be realized, without manual disassembly, and the automation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of evaporation and drying equipment, specifically to a sealing device for the discharge port of a scraper dryer. Background Technology

[0002] Because conventional scraper evaporators operate in a high negative pressure environment, the tightness of the seal at the discharge port has a significant impact on the operating conditions of the scraper. The discharge port sealing device is a core component of the scraper evaporator.

[0003] The sealing device at the feed inlet of a scraped evaporator is typically a blind flange with a sealing gasket. Figure 1 As shown, the sealing device mainly includes a blind plate 2, a large fixed plate 41, a small fixed plate 43, a sealing gasket 42, and a limiting ring 44. The fixed plate, the sealing gasket 42, and the limiting ring 44 are fastened to the inner side of the blind plate 2 by bolts. The blind plate 2 is locked to the discharge pipe 11 of the dryer by fixing bolts. The sealing gasket makes sealing contact with the internal discharge port.

[0004] When the scraper dryer enters the discharge stage, it is necessary to manually remove all the fixing bolts of the locking blind plate, open the sealing device, and start the equipment to discharge the material. Since the scraper dryer is a high-temperature evaporation device and the sealing device is at a high temperature, manual operation poses a high safety hazard.

[0005] In addition, after the material is discharged, a large amount of salt residue will stick to the discharge port, which needs to be manually washed with water, resulting in a low degree of automation. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sealing device for the discharge port of a scraper dryer, which solves the technical problem that the previous sealing devices for the discharge port of the dryer had low automation and were not conducive to efficient discharge.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A sealing device for the discharge port of a scraper dryer is provided, including:

[0009] The discharge pipe has its rear end fixed to a side end plate of the drying cylinder body. The discharge hole on the end plate is located inside the discharge pipe, and the discharge pipe has a discharge port at its lower end.

[0010] Blind flange, which is installed at the front end of the discharge pipe;

[0011] The cylinder is fixedly mounted on the blind plate;

[0012] A sealing plug is located inside the discharge pipe and is connected to the push rod of the cylinder. The cylinder drives the sealing plug to move back and forth inside the discharge pipe. When the cylinder extends, it drives the sealing plug to block the discharge port. When the cylinder retracts, the discharge port opens.

[0013] Furthermore, the sealing plug includes a large fixing plate, a sealing gasket, and a small fixing plate;

[0014] The push rod passes through the large fixed plate, the sealing gasket and the small fixed plate in sequence and is then connected to the locking nut, thereby clamping the sealing gasket between the two fixed plates;

[0015] The outer diameter of the small fixing plate is adapted to be inserted into the discharge hole, and the end face of the sealing gasket is adapted to abut against the outer end face of the discharge hole.

[0016] Furthermore, a limiting ring is provided on the small fixing plate, and the outer diameter of the limiting ring is suitable for insertion into the discharge hole.

[0017] Furthermore, the installation structure between the blind flange and the discharge pipe is as follows:

[0018] The upper end of the blind plate is rotatably connected to the discharge pipe via a hinge block, and the lower end of the blind plate has a bolt groove with a U-shaped structure. A fixing bolt is provided at the lower end of the discharge pipe.

[0019] When the blind flange rotates downward and covers the front end of the discharge pipe, the fixing bolt passes through the bolt groove and is connected to the lock nut, thereby locking the blind flange onto the discharge pipe.

[0020] Furthermore, at least one high-pressure steam inlet is provided on the discharge pipe, the high-pressure steam inlet is connected to a steam pipe, a valve is provided on the steam pipe, and the steam pipe is connected to an external source of steam.

[0021] Furthermore, the discharge port is connected to a hopper.

[0022] The beneficial effects of this utility model are:

[0023] The discharge port can be opened and closed by pushing the sealing plug with compressed air in the cylinder, without the need for manual disassembly and assembly, resulting in high automation efficiency.

[0024] The discharge pipe is connected to a steam pipe, and high-temperature steam is used to flush the inside of the discharge pipe, thereby achieving automatic flushing of the discharge port. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of a traditional sealing device;

[0027] Figure 2This is a schematic diagram of the discharge port sealing device of the scraper dryer of this utility model (when the discharge port is in the open state);

[0028] Figure 3 This is a schematic diagram of the discharge port sealing device of the scraper dryer of this utility model (when the discharge port is in the closed state);

[0029] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a side view of the scraper dryer;

[0031] Figure 6 This is a schematic diagram of the steam pipe connecting to the discharge pipe;

[0032] Among them, 1. Drying cylinder body, 11. Discharge pipe, 12. Hopper;

[0033] 2. Blind plate; 21. Hinge block; 22. Fixing bolt;

[0034] 3. Cylinder; 31. Push rod;

[0035] 4. Sealing plug; 41. Large fixing plate; 42. Sealing gasket; 43. Small fixing plate; 44. Limiting ring;

[0036] 5. Steam pipeline, 51. High-pressure steam inlet. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] This application provides a sealing device for the discharge port of a scraper dryer, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0039] To address the technical problem of low automation in existing dryer outlet sealing devices, which hinders efficient material discharge, an embodiment of this application provides a sealing device for the discharge port of a scraper dryer. This is described in detail below.

[0040] like Figures 2 to 5As shown, a scraper dryer discharge port sealing device includes...

[0041] The discharge pipe 11 has its rear end fixed to one side end plate of the drying cylinder body 1. The discharge hole on the end plate is located inside the discharge pipe 11, and the discharge pipe 11 has a discharge port at its lower end.

[0042] Blind flange 2 is installed at the front end of discharge pipe 11;

[0043] Cylinder 3 is fixedly mounted on blind plate 2;

[0044] The sealing plug 4 is located inside the discharge pipe 11 and is connected to the push rod 31 of the cylinder 3. The cylinder 3 drives the sealing plug 4 to move back and forth inside the discharge pipe 11. When the cylinder 3 extends, it drives the sealing plug 4 to block the discharge port. When the cylinder 3 retracts, the discharge port opens.

[0045] In this embodiment, in order to allow the sealing plug 4 to have enough space to move back and forth within the discharge pipe 11, the length of the discharge pipe 11 is not less than 30cm.

[0046] Specifically, as an optional implementation method in this embodiment, such as Figures 2 to 4 As shown, the sealing plug 4 includes a large fixing plate 41, a sealing gasket 42, and a small fixing plate 43;

[0047] The push rod 31 passes through the large fixed plate 41, the sealing gasket 42 and the small fixed plate 43 in sequence and is then connected to the locking nut, thereby clamping the sealing gasket 42 between the two fixed plates.

[0048] The outer diameter of the small fixing plate 43 is adapted to be inserted into the discharge hole, and the end face of the sealing gasket 42 is adapted to abut against the outer end face of the discharge hole.

[0049] In this embodiment, the sealing gasket 42 is made of rubber, and the two fixing plates can be made of metal plates or polytetrafluoroethylene.

[0050] Specifically, as an optional implementation method in this embodiment, such as Figures 2 to 4 As shown, a limiting ring 44 is provided on the small fixing plate 43, and the outer diameter of the limiting ring 44 is suitable for insertion into the discharge hole.

[0051] In this embodiment, the limiting ring 44 is made of polytetrafluoroethylene, which has good wear resistance and self-lubricating properties.

[0052] The limiting ring 44 and the small fixing plate 43 are connected by multiple screws.

[0053] Once the limiting ring 44 is inserted into the discharge hole, it can prevent the entire sealing plug 4 from moving radially.

[0054] Specifically, as an optional implementation method in this embodiment, such as Figures 2 to 4 As shown, the installation structure between the blind flange 2 and the discharge pipe 11 is as follows:

[0055] The upper end of the blind plate 2 is rotatably connected to the discharge pipe 11 via the hinge block 21. The lower end of the blind plate 2 has a bolt groove with a U-shaped structure. The lower end of the discharge pipe 11 is provided with a fixing bolt 22.

[0056] When the blind plate 2 rotates downward and covers the front end of the discharge pipe 11, the fixing bolt 22 passes through the bolt groove and is connected to the lock nut, thereby locking the blind plate 2 onto the discharge pipe 11.

[0057] One end of the hinge block 21 is welded to the blind plate 2, and the other end is rotated with the discharge pipe 11 through a rotating shaft.

[0058] When the cylinder 3 push rod 31 retracts, the blind plate 2 rotates open, and at this time the sealing plug 4 will not interfere with the opening of the discharge pipe 11.

[0059] Specifically, as an optional implementation method in this embodiment, such as Figure 3 As shown, two high-pressure steam inlets 51 are provided on the discharge pipe 11. The high-pressure steam inlets 51 are connected to the steam pipe 5. A valve is provided on the steam pipe 5. The steam pipe 5 is connected to external steam.

[0060] After the material discharge is completed, the valve of the high-pressure steam is activated to flush the feed inlet. The steam is eventually condensed into condensate and discharged downward into the ton container along with the salt residue.

[0061] Specifically, as an optional implementation method in this embodiment, such as Figures 1 to 3 As shown, the discharge port is connected to the hopper 12. The hopper 12 facilitates the discharge of material from the discharge pipe 11.

[0062] The present invention relates to a sealing device for the discharge port of a scraper dryer. By installing a cylinder 3 on a blind plate 2, the cylinder 3 drives the sealing plug 4 to move back and forth via a push rod 31. The compressed air in the cylinder 3 pushes the piston to open and close the sealing gasket 42. The compressed air intake can be automatically controlled by an intake valve, eliminating the need for manual disassembly.

[0063] All the devices selected in the application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0064] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0065] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0067] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0068] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0069] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A sealing device for the discharge port of a scraper dryer, characterized in that, include The discharge pipe has its rear end fixed to a side end plate of the drying cylinder body. The discharge hole on the end plate is located inside the discharge pipe, and the discharge pipe has a discharge port at its lower end. Blind flange, which is installed at the front end of the discharge pipe; The cylinder is fixedly mounted on the blind plate; A sealing plug is located inside the discharge pipe and is connected to the push rod of the cylinder. The cylinder drives the sealing plug to move back and forth inside the discharge pipe. When the cylinder extends, it drives the sealing plug to block the discharge port. When the cylinder retracts, the discharge port opens.

2. The discharge port sealing device of the scraper dryer according to claim 1, characterized in that, The sealing plug includes a large fixing plate, a sealing gasket, and a small fixing plate; The push rod passes through the large fixed plate, the sealing gasket and the small fixed plate in sequence and is then connected to the locking nut, thereby clamping the sealing gasket between the two fixed plates; The outer diameter of the small fixing plate is adapted to be inserted into the discharge hole, and the end face of the sealing gasket is adapted to abut against the outer end face of the discharge hole.

3. The discharge port sealing device of the scraper dryer according to claim 2, characterized in that, A limiting ring is provided on the small fixing plate, and the outer diameter of the limiting ring is suitable for insertion into the discharge hole.

4. The discharge port sealing device of the scraper dryer according to claim 1, characterized in that, The installation structure between the blind flange and the discharge pipe is as follows: The upper end of the blind plate is rotatably connected to the discharge pipe via a hinge block, and the lower end of the blind plate has a bolt groove with a U-shaped structure. A fixing bolt is provided at the lower end of the discharge pipe. When the blind flange rotates downward and covers the front end of the discharge pipe, the fixing bolt passes through the bolt groove and is connected to the lock nut, thereby locking the blind flange onto the discharge pipe.

5. The discharge port sealing device of the scraper dryer according to claim 1, characterized in that, At least one high-pressure steam inlet is provided on the discharge pipe, the high-pressure steam inlet is connected to a steam pipe, a valve is provided on the steam pipe, and the steam pipe is connected to an external source of steam.

6. The discharge port sealing device of the scraper dryer according to claim 1, characterized in that, The discharge port is connected to the hopper.

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