A scraper mechanism for secondary scraping in a disc scraper dryer

Abstract

This utility model relates to the field of disc scraper dryer technology, and in particular to a scraper mechanism for secondary scraping in a disc scraper dryer, which solves the shortcomings of existing disc scraper dryers. It includes a pair of main scrapers, with a disc body in contact between the main scrapers. A secondary scraper is in contact with the upper surface of each main scraper. The main scrapers are inclined to a horizontal line, and the secondary scraper is perpendicular to the horizontal line. A linear drive mechanism is provided on one side of the secondary scraper, which drives the secondary scraper to move along the upper surface of the main scrapers to scrape away accumulated material. The linear drive mechanism includes a sliding member. A guide plate is fixedly connected to one side of the main scraper, and the sliding member is slidably engaged with the upper end of the guide plate. The sliding member is connected to the secondary scraper. This utility model has the characteristics of strong practicality and secondary scraping.

Description

Technical Field

[0001] This utility model relates to the technical field of disc scraper dryers, specifically to a scraper mechanism for a disc scraper dryer that can perform secondary scraping. Background Technology

[0002] A disc scraper dryer is a type of contact dryer used to extract dry substances from liquids containing solid particles, such as solutions and suspensions. The liquid to be dried is sprayed onto a steam-heated disc through a pump and multiple nozzles. The liquid evaporates on the heated disc surface. After the remaining dry substance rotates once, a scraper on the disc scrapes it off the disc surface, and then exhaust gas containing water vapor is discharged. Thus, the core components of this dryer are the scraper and the disc for removing the material.

[0003] A disc dryer is disclosed in existing patent publication number CN215026061U, including a housing, the inner cavity of which is a drying chamber. A rotating shaft is provided in the drying chamber, and the two ends of the rotating shaft are horizontally mounted in the housing. A heating turntable unit is provided on the rotating shaft. When the rotating shaft is driven to rotate, the heating turntable unit rotates synchronously. A material distributor is installed on the housing, and the outlet of the material distributor faces the heating turntable unit. The material sprayed by the material distributor falls evenly onto the heating turntable unit. A scraper is provided on the side of the heating turntable unit, and a long material box is provided below the heating turntable unit. The scraper scrapes the dried material on the heating turntable unit into the material box.

[0004] In the above technical solution, the dried material is scraped into the material box by a scraper. However, since different types of materials require different degrees of dryness, the moisture content of the scraped material is also different. For some materials with higher moisture requirements, when scraping with a scraper, the material often sticks and accumulates on the scraper, making it difficult to discharge the material smoothly. Therefore, it is often necessary to manually remove the material on the scraper, which is time-consuming and labor-intensive.

[0005] Therefore, it is necessary to design a scraper mechanism for a disc scraper dryer that is practical and capable of secondary scraping. Utility Model Content

[0006] The purpose of this invention is to provide a scraper mechanism for a disc scraper dryer that can perform secondary scraping, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a scraper mechanism for a disc scraper dryer capable of secondary scraping, comprising a pair of main scrapers.

[0008] A disc body is disposed in contact between a pair of main scrapers. A secondary scraper is disposed in contact with the upper surface of the main scrapers. The main scrapers are inclined to the horizontal line, and the secondary scrapers are disposed perpendicular to the horizontal line. A linear drive mechanism is disposed on one side of the secondary scraper. The linear drive mechanism drives the secondary scraper to move along the upper surface of the main scrapers to scrape away the accumulated material.

[0009] According to the above technical solution, the linear drive mechanism includes a sliding member, a guide plate is fixedly connected to one side of the main scraper, the sliding member is slidably engaged with the upper end of the guide plate, and the sliding member is connected to the auxiliary scraper.

[0010] According to the above technical solution, the guide plate has grooves on both sides, and the inner ends of the sliding member are engaged with the grooves and slide together with them.

[0011] According to the above technical solution, the guide inclined plate has a through groove, and a connecting rod is provided on one side of the auxiliary scraper. The connecting rod passes through the sliding member and is rotatably connected to it. The connecting rod passes through the inclined groove.

[0012] According to the above technical solution, a second sliding member is similarly provided on one side of the first sliding member. A driving plate is fixedly connected to both ends of the second sliding member. The driving plate extends to the side of the first sliding member. An adaptation opening is provided on the middle side of the driving plate. The adaptation opening limits the connecting rod. A top rod is fixedly connected inside the adaptation opening. A pair of vertical rods are fixedly connected to the upper side of the connecting rod.

[0013] According to the above technical solution, a top block is fixedly connected to the upper end of the sliding member two. The top block is driven by a cylinder, and the cylinder is fixed to the upper end of the guide plate.

[0014] According to the above technical solution, the lower end of the guide plate is fixedly connected to a material discharge port.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] With a main scraper and a secondary scraper, when the disc body rotates, a pair of main scrapers contact its two sides, continuously scraping off the dry material on its surface. The main scrapers are inclined to the horizontal line, making it easy for the scraped material to slide down the main scraper into the prepared collection box. When the material sticks and accumulates on the main scraper, the secondary scraper is driven by a linear drive mechanism to move along the upper surface of the main scraper, thereby scraping off the material a second time. This allows the material to fall smoothly without the need for manual removal, making it highly practical. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the main and auxiliary scrapers of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the sliding component of this utility model;

[0020] Figure 4 This is a schematic diagram of the driver board of this utility model;

[0021] In the diagram: 1. Main scraper; 2. Secondary scraper; 201. Connecting rod; 202. Vertical rod; 3. Linear drive mechanism; 301. Guide sloping plate; 302. Slide groove; 303. Inclined groove; 4. Discharge port; 5. Sliding component one; 501. Sliding component two; 502. Drive plate; 503. Top rod; 6. Disc body; 7. Top block; 8. Cylinder. 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 This utility model provides a technical solution: a scraper mechanism for a disc scraper dryer capable of secondary scraping, comprising a pair of main scrapers 1.

[0024] A disc body 6 is disposed between a pair of main scrapers 1. A secondary scraper 2 is disposed on the upper surface of the main scraper 1. The main scraper 1 is inclined to the horizontal line, and the secondary scraper 2 is perpendicular to the horizontal line. A linear drive mechanism 3 is disposed on one side of the secondary scraper 2. The linear drive mechanism 3 drives the secondary scraper 2 to move along the upper surface of the main scraper 1 to scrape away the accumulated material.

[0025] Preferably, when the disc body 6 rotates, a pair of main scrapers 1 contact its two sides, thereby continuously scraping off the dry material on its surface. The main scrapers 1 are inclined to the horizontal line, so that the scraped material can slide down the main scrapers 1 into the prepared collection box. When the material sticks and accumulates on the main scrapers 1, the linear drive mechanism 3 drives the auxiliary scraper 2 to move along the upper surface of the main scrapers 1, thereby scraping off the material a second time. This allows the material to fall smoothly without the need for manual removal, making it highly practical.

[0026] It should be noted that this application only describes the scraper mechanism inside the disc scraper dryer, not the dryer as a whole. The other components and mechanisms of the dryer are existing technologies in this field, so they will not be described in detail here.

[0027] The linear drive mechanism 3 includes a slider 5. A guide plate 301 is fixedly connected to one side of the main scraper 1. The slider 5 is slidably fitted to the upper end of the guide plate 301. The slider 5 is connected to the auxiliary scraper 2.

[0028] Preferably, a guide plate 301 is provided, and its inclination angle is adapted to the main scraper 1. The sliding member 5 slides along the guide plate 301, which can drive the auxiliary scraper 2 to always be in contact with the surface of the main scraper 1 to move, thereby scraping off the material.

[0029] The guide plate 301 has grooves 302 on both sides, and the inner ends of the sliding member 5 are engaged with the grooves 302 and slide with them.

[0030] Preferably, the two inner ends of the slider 5 are engaged in the groove 302 to improve the stability of the slider 5 movement.

[0031] The guide plate 301 has a through groove 303. A connecting rod 201 is provided on one side of the auxiliary scraper 2. The connecting rod 201 passes through the sliding member 5 and is rotatably connected to it. The connecting rod 201 passes through the groove 303.

[0032] Preferably, to improve the stability of the connecting rod 201 supporting the auxiliary scraper 2, the connecting rod 201 is arranged to pass through the inclined groove 303 for limiting support. The connecting rod 201 also passes through the sliding member 5 and is rotatably connected to it, allowing the auxiliary scraper 2 to rotate relative to it and adjust its angle. When the auxiliary scraper 2 moves downward, it scrapes off the material. When it rises to reset, to prevent the auxiliary scraper 2 from pushing the newly scraped material on the main scraper 1 upward, thus preventing the material from falling smoothly downward, the auxiliary scraper 2 rotates upward relative to it, moving away from the main scraper 1. This allows the auxiliary scraper 2 to avoid the material when resetting upward until it is fully reset. The auxiliary scraper 2 then rotates to reset and re-contacts the surface of the main scraper 1, allowing it to scrape off accumulated material again.

[0033] Similarly, a second slider 501 is provided on one side of the first slider 5. Both ends of the second slider 501 are fixedly connected to a drive plate 502. The drive plate 502 extends to the side of the first slider 5. An adaptation opening is provided on the middle side of the drive plate 502. The adaptation opening limits the connecting rod 201. A top rod 503 is fixedly connected inside the adaptation opening. A pair of vertical rods 202 are fixedly connected to the upper side of the connecting rod 201.

[0034] A top block 7 is fixedly connected to the upper end of the sliding member 501. The top block 7 is driven by a cylinder 8, which is fixed to the upper end of the guide plate 301.

[0035] Preferably, a torsion spring is provided at the rotatable connection between the connecting rod 201 and the sliding member 5, so that in the initial state, the auxiliary scraper 2 is always in contact with the main scraper 1. When the cylinder 8 drives the top block 7 and the sliding member 501, the sliding member 501 pulls the sliding member 5 to move synchronously through the adaptation port opened in the drive plate 502, thereby driving the auxiliary scraper 2 to scrape off the accumulated material. When it is necessary to reset, due to the distance difference between the sliding member 5 and the sliding member 501, when the cylinder 8 drives the sliding member 501 to move upward, it moves relative to the sliding member 5, causing the top rod 503 to push the vertical rod 202. This causes the connecting rod 201 to drive the secondary scraper 2 to rotate upward relative to the upper surface of the main scraper 1, until the second sliding member 501 contacts the first sliding member 5. This pushes the first sliding member 5, causing the secondary scraper 2 to return to its original position and avoid the material. When it is necessary to scrape the material again, the second sliding member 501 moves away from the first sliding member 5 again. Under the reset action of the torsion spring and the limiting action of the adapting port, the secondary scraper 2 rotates and returns to its original position, re-contacting the surface of the main scraper 1, so that the material can be scraped again. In other words, the angle of the secondary scraper 2 can be adjusted simply by controlling its displacement, which is highly practical.

[0036] The lower end of the guide plate 301 is fixedly connected to the material discharge port 4.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A scraper mechanism for secondary scraping in a disc scraper dryer, comprising a pair of main scrapers (1), characterized in that: A disc body (6) is disposed in contact between a pair of main scrapers (1). A secondary scraper (2) is disposed in contact with the upper surface of the main scraper (1). The main scraper (1) is inclined to the horizontal line, and the secondary scraper (2) is disposed perpendicular to the horizontal line. A linear drive mechanism (3) is disposed on one side of the secondary scraper (2). The linear drive mechanism (3) drives the secondary scraper (2) to move along the upper surface of the main scraper (1) to scrape away the accumulated material.

2. The scraper mechanism for secondary scraping in a disc scraper dryer according to claim 1, characterized in that: The linear drive mechanism (3) includes a sliding member (5), a guide plate (301) is fixedly connected to one side of the main scraper (1), the sliding member (5) is slidably engaged with the upper end of the guide plate (301), and the sliding member (5) is connected to the auxiliary scraper (2).

3. The scraper mechanism for secondary scraping in a disc scraper dryer according to claim 2, characterized in that: The guide plate (301) has grooves (302) on both sides, and the inner ends of the sliding member (5) are inserted into the grooves (302) and slide in cooperation with them.

4. The scraper mechanism for secondary scraping in a disc scraper dryer according to claim 2, characterized in that: The guide plate (301) has a through groove (303), and a connecting rod (201) is provided on one side of the auxiliary scraper (2). The connecting rod (201) passes through the sliding member (5) and is rotatably connected to it. The connecting rod (201) passes through the groove (303).

5. The scraper mechanism for secondary scraping in a disc scraper dryer according to claim 4, characterized in that: Similarly, a second sliding member (501) is provided on one side of the first sliding member (5). A driving plate (502) is fixedly connected to both ends of the second sliding member (501). The driving plate (502) extends to the side of the first sliding member (5). An adaptation opening is provided on the middle side of the driving plate (502). The adaptation opening limits the connecting rod (201). A top rod (503) is fixedly connected inside the adaptation opening. A pair of vertical rods (202) are fixedly connected to the upper side of the connecting rod (201).

6. The scraper mechanism for secondary scraping in a disc scraper dryer according to claim 5, characterized in that: The upper end of the sliding member 2 (501) is fixedly connected to a top block (7), which is driven by a cylinder (8) and the cylinder (8) is fixed to the upper end of the guide plate (301).

7. The scraper mechanism for secondary scraping in a disc scraper dryer according to claim 2, characterized in that: The lower end of the guide plate (301) is fixedly connected to the material discharge port (4).

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