A drying device for producing polyaluminum chloride

Abstract

The utility model discloses a drying device for producing polyaluminum chloride, which comprises a support, a roller rotatably connected to the support, a first scraper installed on one side of the support, and a second scraper rotatably connected to one end of a threaded rod threadedly connected to the middle of the support. The second scraper is attached to the side of the roller, and guiding rods are installed on both sides of the second scraper. The guiding rods are slidably connected to the support. The second scraper installed on the side of the roller can scrape the undried material liquid, making the material liquid on the side flow back into the trough, avoiding the situation that a large amount of dried material appears on the side of the roller. Then, the third scraper can scrape the residual material, avoiding the situation that the dried material reenters the trough.

Description

Technical Field

[0001] This utility model relates to the field of polyaluminum chloride production technology, specifically a drying device for producing polyaluminum chloride. Background Technology

[0002] The working principle of the polyaluminum chloride drum dryer is that a heating device is set inside the drum, and a hopper is set at the bottom of the drum. When the drum rotates, the liquid in the hopper covers the surface of the drum to form a liquid film. As the drum rotates, the liquid film is dried by the heating device inside the drum, and then scraped off by the scraper into the discharge hopper.

[0003] In existing drum-type drying devices, the bottom of the drum needs to be immersed in the material tank to contact the liquid. This causes liquid to adhere not only to the surface of the drum but also to the sides. Figure 6 As shown in region A.

[0004] Although the material adhering to the side of the drum re-enters the liquid as the drum rotates, the operating speed of a typical drum dryer is 4 to 10 revolutions per minute, while the dissolution time of polyaluminum chloride is 1 to 3 minutes. This results in the polyaluminum chloride being carried out again before it has dissolved in the liquid, and new liquid will be adsorbed on the outside. This continuous cycle causes polyaluminum chloride to accumulate on the side of the drum.

[0005] Although some existing equipment adds scrapers to the sides of the drum, these new scrapers are located on either side of the original scrapers. They are intended to scrape off the material that has already been dried on the sides. However, when the liquid material on the sides of the drum moves directly upwards, it may appear as either an incompletely dried liquid or a completely dried solid (this varies due to differences in the rotation speed and temperature of different dryers).

[0006] When the liquid is not fully dried, it will flow downwards due to gravity. When it is fully dried, solids may sometimes fall off. Both the downward-flowing liquid and the fallen solids may fall onto the transmission parts, affecting the normal operation of the equipment.

[0007] Therefore, a drying device for the production of polyaluminum chloride is proposed. Summary of the Invention

[0008] The purpose of this invention is to provide a drying device for producing polyaluminum chloride, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a drying device for producing polyaluminum chloride, comprising a support, a roller rotatably connected to the support, a first scraper installed on one side of the support, and one side of the first scraper being in contact with the roller;

[0010] A support is installed on the bracket, and a threaded rod is threadedly connected to the middle of the support. A second scraper is rotatably connected to one end of the threaded rod. One side of the second scraper is in contact with the side of the roller. Guide rods are installed on both sides of the second scraper and are slidably connected to the support.

[0011] Preferably, a baffle is installed on the lower surface of the second scraper.

[0012] Preferably, a third scraper is installed on both sides of the first scraper, and the third scraper is in contact with the side of the roller.

[0013] Preferably, a barrier is installed on the outer side of the third scraper.

[0014] Preferably, a material trough is installed below the support, and the bottom of the roller is located inside the material trough.

[0015] Preferably, a drive wheel is installed on one side of the roller, and the drive wheel is a pulley, a gear or a sprocket.

[0016] Preferably, a handle is installed at the end of the threaded rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the second scraper set on the side of the drum can scrape off the undried liquid, allowing the liquid on the side to flow back into the trough, thus avoiding the situation where a large amount of dried material appears on the side of the drum; and the third scraper can scrape off the remaining material, thus preventing the dried material from re-entering the trough. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second scraper of this utility model;

[0021] Figure 4 This is a bottom view of the structure of the second scraper of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the third scraper of this utility model;

[0023] Figure 6 This is a schematic diagram of adhesion to the side of the roller.

[0024] In the diagram: 1. Support; 2. Roller; 3. Feed trough; 4. First scraper; 5. Second scraper; 6. Support; 7. Drive wheel; 8. Handle; 9. Guide rod; 10. Baffle; 11. Threaded rod; 12. Enclosure; 13. Third scraper. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a drying device for producing polyaluminum chloride, including a support 1, on which a drum 2 is rotatably connected. The drum 2 has a hollow structure and high-temperature steam is introduced into it, which can keep the outer surface of the drum 2 at a high temperature, facilitating the drying of the material. A first scraper 4 is installed on one side of the support 1, and one side of the first scraper 4 is in contact with the drum 2. The first scraper 4 can scrape the dried material on the surface of the drum 2 as the drum 2 rotates. The drum-type polyaluminum chloride drying device is prior art, so its specific structure will not be described in detail in this application.

[0027] A support 6 is installed on the bracket 1. A threaded rod 11 is threadedly connected to the middle of the support 6. A handle 8 is installed at the end of the threaded rod 11. A second scraper 5 is rotatably connected to the other end of the threaded rod 11. One side of the second scraper 5 is in contact with the side of the roller 2. The rotation of the threaded rod 11 can drive the second scraper 5 to move, so that the second scraper 5 contacts the side of the roller 2, which is convenient for scraping the slurry. Guide rods 9 are installed on both sides of the second scraper 5. The guide rods 9 are slidably connected to the support 6. The guide rods 9 can restrict the position of the second scraper 5, so that the second scraper 5 can move smoothly and avoid the second scraper 5 from rotating randomly.

[0028] like Figure 3 and Figure 4 As shown: A baffle 10 is installed on the lower surface of the second scraper 5; through the above setting, the baffle 10 can play the role of guiding the flow. After the second scraper 5 scrapes the slurry on the side, it allows it to flow back into the trough 3 along the lower surface of the second scraper 5, thus avoiding the situation where the slurry flows onto the threaded rod 11.

[0029] like Figure 5 As shown: a third scraper 13 is installed on both sides of the first scraper 4. The third scraper 13 is in contact with the side of the roller 2, and a baffle 12 is installed on the outside of the third scraper 13. With the above settings, the third scraper 13 can scrape off the material formed by the residual slurry on both sides of the roller 2, thus preventing the dried material from re-entering the material tank 3.

[0030] like Figure 1 and Figure 2 As shown: A material trough 3 is installed below the support 1, and the bottom of the roller 2 is located inside the material trough 3; with the above arrangement, the inside of the material trough 3 is used to store the slurry of polyaluminum chloride. Through the continuous rotation of the roller 2, some slurry can be adhered to the outside of the roller 2. Then, the high temperature on the roller 2 can evaporate the water, thereby forming a dry material.

[0031] like Figure 1 and Figure 2 As shown: A drive wheel 7 is installed on one side of the roller 2. The drive wheel 7 is a pulley, gear or sprocket. With the above settings, the drive wheel 7 can drive the roller 2 to rotate, thereby realizing the adhesion and drying of the slurry. Then, the dried material can be scraped off by the first scraper 4 to facilitate subsequent work.

[0032] Working principle: First, rotating the handle 8 drives the threaded rod 11 to rotate, which in turn moves the second scraper 5, causing it to come into contact with the side of the roller 2. Then, liquid is poured into the trough 3, and the drive motor drives the drive wheel 7 to rotate. The drive wheel 7 then drives the roller 2 to rotate, causing the bottom part of the roller 2 to be continuously rotated upwards. At this time, the second scraper 5 can scrape off the liquid adhering to the side of the roller 2, allowing the scraped liquid to flow back into the trough 3. Then, with the action of high-temperature steam inside the roller 2, the liquid adhering to the roller 2 can be dried, causing the moisture to evaporate and leaving dry material. After that, the first scraper 4 can scrape off the dried material. At the same time, the third scrapers 13 on both sides can scrape off the material remaining on the side of the roller 2, preventing the material from re-entering the trough 3.

[0033] 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 drying device for producing polyaluminum chloride, comprising a support (1), characterized in that: A roller (2) is rotatably connected to the bracket (1), and a first scraper (4) is installed on one side of the bracket (1), with one side of the first scraper (4) in contact with the roller (2). A support (6) is installed on the bracket (1). A threaded rod (11) is threadedly connected to the middle of the support (6). A second scraper (5) is rotatably connected to one end of the threaded rod (11). One side of the second scraper (5) is in contact with the side of the roller (2). Guide rods (9) are installed on both sides of the second scraper (5). The guide rods (9) are slidably connected to the support (6).

2. The drying device for producing polyaluminum chloride according to claim 1, characterized in that: A baffle (10) is installed on the lower surface of the second scraper (5).

3. The drying device for producing polyaluminum chloride according to claim 1, characterized in that: A third scraper (13) is installed on both sides of the first scraper (4), and the third scraper (13) is in contact with the side of the roller (2).

4. The drying device for producing polyaluminum chloride according to claim 3, characterized in that: A barrier (12) is installed on the outside of the third scraper (13).

5. The drying device for producing polyaluminum chloride according to claim 1, characterized in that: A material trough (3) is installed below the support (1), and the bottom of the roller (2) is located inside the material trough (3).

6. The drying device for producing polyaluminum chloride according to claim 1, characterized in that: A drive wheel (7) is installed on one side of the roller (2), and the drive wheel (7) is a pulley, a gear or a sprocket.

7. A drying apparatus for producing polyaluminum chloride according to claim 1, characterized in that: A handle (8) is installed at the end of the threaded rod (11).

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