A scraping mechanism for a desiccant with an adaptively adjustable scraper

Abstract

This utility model discloses a scraping mechanism for a evaporator with an adaptive adjustable scraper, relating to the field of evaporator technology. It includes an evaporator housing, a screen plate, and a scraping shaft. A scraping arm is fixedly connected to the outer wall of the scraping shaft via a mounting base. A scraper is hinged to the bottom surface of the scraper arm via a hinged seat. An angle adjustment component is provided on one side of the scraper for adjusting the angle between the scraper and the scraper arm. This utility model uses a humidity sensor to monitor changes in material humidity in real time. Combined with the angle adjustment component driven by a telescopic cylinder, it can automatically adjust the angle between the scraper and the scraper arm. When the material humidity increases (increased viscosity) or the particle size becomes coarser (increased accumulation pressure), the system effectively reduces material adhesion and avoids accumulation and blockage by adjusting the scraper angle. This ensures that materials with different properties are evenly distributed and stably propelled on the screen plate, significantly improving the contact efficiency between the material and steam during the evaporation process.

Description

Technical Field

[0001] This utility model relates to the field of steam desiccant technology, specifically to a steam desiccant scraping mechanism with an adaptive adjustable scraper. Background Technology

[0002] Evaporators are commonly used equipment in the oil processing industry, primarily for evaporating and descaling wet meal after leaching to remove solvents. The scraping mechanism is a crucial component of the evaporator; its function is to evenly distribute the material onto the sieve plate and propel it forward, ensuring sufficient contact between the material and steam to improve evaporation efficiency.

[0003] Traditional desiccant scraping mechanisms typically use scrapers with a fixed angle. When dealing with materials of different properties (such as varying moisture content, particle size, and viscosity), these scrapers cannot be adjusted to suit the specific conditions, resulting in poor scraping performance and problems such as material accumulation and blockage, thus affecting the normal operation of the desiccant. Furthermore, fixed-angle scrapers may cause excessive compression and damage to the material during processing, affecting its quality. Utility Model Content

[0004] The purpose of this invention is to provide a scraping mechanism for a desiccant with an adaptively adjustable scraper, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A scraping mechanism for an evaporator with an adaptive adjustable scraper includes an evaporator housing, a screen plate, and a scraping shaft. A scraping arm is fixedly connected to the outer wall of the scraping shaft via a mounting seat. A scraper is hinged to the bottom surface of the scraping arm via a hinge seat. An angle adjustment component for adjusting the scraper is provided on one side of the scraper.

[0007] The angle adjustment component is used to adjust the angle between the scraper and the scraper arm. The angle adjustment component includes a telescopic cylinder. An air pipe is fixedly connected to the back of the telescopic cylinder near the top. A sealed rotary joint is rotatably connected to the end of the air pipe away from the telescopic cylinder.

[0008] The bottom end of the telescopic cylinder is hinged to a transmission link, and the end of the transmission link away from the telescopic cylinder is hinged to the front of the scraper.

[0009] A further improvement of this utility model is that: a cylinder protective cover is sleeved on the outer wall of the telescopic cylinder, and the cylinder protective cover is fixedly connected to the outer wall of the scraper arm.

[0010] A further improvement of this utility model is that: an air pipe protective cylinder is fixedly connected to the top of the mounting base, and the outer wall of the end of the air pipe away from the telescopic cylinder is located inside the air pipe protective cylinder.

[0011] A further improvement of this utility model is that the outer wall of the scraper shaft near the top is rotatably connected to the scraper shaft via a collar.

[0012] A further improvement of this utility model is that the bottom surface of the scraper overlaps with the upper surface of the sieve plate.

[0013] A further improvement of this utility model is that a humidity sensor is fixedly connected to the inner wall of the evaporator housing.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This invention provides a scraping mechanism for a evaporator with an adaptive adjustable scraper. A humidity sensor monitors material moisture changes in real time, and combined with an angle adjustment component driven by a telescopic cylinder, the angle between the scraper and the scraper arm can be automatically adjusted. When material moisture increases (increased viscosity) or particle size coarsens (increased accumulation pressure), the system effectively reduces material adhesion and avoids blockage by adjusting the scraper angle. This ensures that materials with different properties are evenly distributed and stably propelled on the screen plate, significantly improving the contact efficiency between material and steam during the evaporation process.

[0016] This invention provides a scraping mechanism for a desiccant with an adaptively adjustable scraper. It employs a sealed rotary joint to connect the air supply system to the air pipe of the telescopic cylinder. Combined with a protective sleeve for the air pipe and an internal wiring structure within the scraper arm, this design eliminates the risk of entanglement when the air pipe rotates synchronously with the scraper shaft. This design completely solves the problem of entanglement and wear in the pneumatic component piping of traditional rotating equipment, ensuring long-term reliable operation of the angle adjustment system under high-speed rotation conditions, and reducing equipment maintenance frequency and downtime losses.

[0017] This invention provides a scraping mechanism for a desiccant with an adaptively adjustable scraper. The ceramic wear-resistant layer on the scraper surface significantly improves its wear resistance, adapting to long-term scraping of high-friction materials such as wet meal. The protective cover outside the telescopic cylinder and the air pipe protection design inside the scraper arm effectively isolate the pneumatic components from the corrosive environment of steam, dust, etc., inside the desiccant, reducing wear and tear on mechanical parts. This dual protection measure can increase the service life of the scraper and angle adjustment assembly by more than 30%, reducing equipment maintenance costs. Attached Figure Description

[0018] Figure 1 This is a partial structural diagram of the shell of the desiccant of this utility model;

[0019] Figure 2This is a schematic diagram of the scraper arm structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the angle adjustment component structure of this utility model;

[0021] Figure 4 This is a rear view schematic diagram of the scraper arm structure of this utility model.

[0022] In the diagram: 1. Evaporator housing; 2. Screen plate; 3. Scraper shaft; 4. Scraper arm; 5. Scraper; 6. Mounting base; 7. Air pipe protective sleeve; 8. Hinge seat; 9. Angle adjustment assembly; 10. Air pipe; 11. Sealed rotary joint; 12. Telescopic cylinder; 13. Cylinder protective cover; 14. Transmission connecting rod; 15. Humidity sensor; 16. Shaft collar. Detailed Implementation

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] Example 1

[0026] like Figure 1-4 As shown, this utility model provides a scraping mechanism for a steam desiccant with an adaptive adjustable scraper, including a steam desiccant housing 1, a screen plate 2 and a scraping shaft 3. The outer wall of the scraping shaft 3 is fixedly connected to a scraping arm 4 through a mounting seat 6. The bottom surface of the scraping arm 4 is hinged to a scraper 5 through a hinge seat 8. An angle adjustment component 9 for adjusting the scraper 5 is provided on one side of the scraper 5.

[0027] Angle adjustment component 9 is used to adjust the included angle between scraper 5 and scraper arm 4. Angle adjustment component 9 includes telescopic cylinder 12. The back of telescopic cylinder 12 near the top is fixedly connected to air pipe 10. The end of air pipe 10 away from telescopic cylinder 12 is rotatably connected to sealed rotary joint 11.

[0028] The bottom end of the telescopic cylinder 12 is hinged to a transmission link 14, and the end of the transmission link 14 away from the telescopic cylinder 12 is hinged to the front of the scraper 5.

[0029] The scraper 5 has a U-shaped hinge lug on its front side. The end of the transmission connecting rod 14 is connected to the hinge lug via a pin and a thrust bearing. The pin axis is parallel to the width direction of the scraper, ensuring that the scraper rotates around the center of the hinge seat 8 when the connecting rod swings. When the cylinder is fully retracted, the angle between the scraper and the scraper arm is 15°, and when fully extended, the angle is 45°.

[0030] Example 2

[0031] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a cylinder protective cover 13 is sleeved on the outer wall of the telescopic cylinder 12, and the cylinder protective cover 13 is fixedly connected to the outer wall of the scraper arm 4.

[0032] The top of the mounting base 6 is fixedly connected to the air pipe protective cylinder 7, and the outer wall of the end of the air pipe 10 away from the telescopic cylinder 12 is located inside the air pipe protective cylinder 7.

[0033] The outer wall of the scraper shaft 3 near the top is rotatably connected to the scraper shaft 3 via a collar 16.

[0034] The bottom surface of the scraper 5 overlaps with the upper surface of the sieve plate 2, and a humidity sensor 15 is fixedly connected to the inner wall of the evaporator housing 1.

[0035] Example 3

[0036] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, the surface of the scraper 5 is provided with a wear-resistant layer, which is made of ceramic material. Ceramic material has extremely high wear resistance and corrosion resistance, which can effectively extend the service life of the scraper 5, reduce the replacement frequency of the scraper 5, and reduce the maintenance cost of the equipment.

[0037] The sealing rotary joint 11 is higher than the top of the scraper shaft 3 and is not obstructed by the scraper shaft 3. Therefore, the air pipe 10 connected to the sealing rotary joint 11 will not have a tangling problem during its rotation.

[0038] The air pipe 10 extends directly from the inside of the scraper arm 4 to the inside of the air pipe protective cylinder 7, forming a protective structure with the scraper arm 4 and the air pipe protective cylinder 7. It also rotates synchronously with the scraper arm 4 to avoid unnecessary wear.

[0039] The working principle of the scraping mechanism of the desiccant with adaptive adjustable scraper will be explained in detail below.

[0040] like Figure 1-4 As shown, during the operation of the desiccant, the material enters the interior of the feed inlet 1 and falls onto the screen plate 2. The scraper shaft 3 rotates under the drive of the motor, which drives the scraper arm 4 and scraper 5 to rotate together, distributing the material evenly on the screen plate 2 and pushing the material forward.

[0041] The sealed rotary joint 11 is connected to an external air supply system via a pipeline. The air supply system includes a solenoid directional valve (model optional, SMC VQ110U), a pressure sensor (detecting cylinder working pressure), and a speed control valve (adjusting cylinder extension / retraction speed), all integrated into the pneumatic control module within the control cabinet. The signal from the humidity sensor 15 needs to be processed by a PLC controller (such as Siemens S7-200) to calculate the cylinder extension / retraction amount using a PID algorithm, avoiding vibration caused by frequent adjustments.

[0042] The humidity sensor 15 detects the status of the material in real time. When it detects a change in the humidity of the material, it transmits the signal to the air supply system. The telescopic cylinder 12 moves in extension and retraction according to the signal, adjusting the angle between the scraper 5 and the scraper arm 4, so that the scraper 5 can adapt to materials of different properties and improve the scraping effect.

[0043] When a change in the state of the material is detected, such as an increase in the humidity or coarsening of the particle size, the pressure of the material on the scraper 5 will increase. At this time, the material detection device will transmit a signal to the air supply system, which will drive the telescopic cylinder 12 to extend and retract, thereby adjusting the angle between the scraper 5 and the scraper arm 4, so that the scraper 5 can better adapt to the state of the material and improve the scraping effect.

[0044] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A kind of with self-adapting regulation blade of evaporative separator blade mechanism, including evaporative separator shell (1), sieve plate (2) and blade shaft (3), it is characterized by: The outer wall of the scraper shaft (3) is fixedly connected to the scraper arm (4) via the mounting base (6). The bottom surface of the scraper arm (4) is hinged to the scraper plate (5) via the hinge base (8). An angle adjustment component (9) for adjusting the scraper plate (5) is provided on one side. The angle adjustment component (9) is used to adjust the included angle between the scraper (5) and the scraper arm (4). The angle adjustment component (9) includes a telescopic cylinder (12). An air pipe (10) is fixedly connected to the back of the telescopic cylinder (12) near the top. A sealed rotary joint (11) is rotatably connected to one end of the air pipe (10) away from the telescopic cylinder (12). The bottom end of the telescopic cylinder (12) is hinged to a transmission link (14), and the end of the transmission link (14) away from the telescopic cylinder (12) is hinged to the front of the scraper (5).

2. The material scraping mechanism for a desiccant with an adaptively adjustable scraper according to claim 1, characterized in that: The outer wall of the telescopic cylinder (12) is fitted with a cylinder protective cover (13), which is fixedly connected to the outer wall of the scraper arm (4).

3. The material scraping mechanism for a desiccant with an adaptively adjustable scraper according to claim 1, characterized in that: The mounting base (6) is fixedly connected to the top of the air pipe protective tube (7), and the outer wall of the end of the air pipe (10) away from the telescopic cylinder (12) is located inside the air pipe protective tube (7).

4. The material scraping mechanism of a desiccant with an adaptively adjustable scraper according to claim 1, characterized in that: The outer wall of the scraper shaft (3) near the top is rotatably connected to the scraper shaft (3) via a collar (16).

5. A scraping mechanism for a desiccant with an adaptively adjustable scraper according to claim 1, characterized in that: The bottom surface of the scraper (5) overlaps with the upper surface of the sieve plate (2).

6. The material scraping mechanism of a desiccant with an adaptively adjustable scraper according to claim 1, characterized in that: A humidity sensor (15) is fixedly connected to the inner wall of the evaporator housing (1).

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