Waste acid concentration device capable of preventing scaling blockage

Abstract

The utility model relates to the technical field of titanium dioxide processing waste acid treatment, and discloses a waste acid concentration device capable of preventing scaling blockage, which comprises a concentration tank and a maintenance bin gate, a steam inlet is assembled at the upper position of the left side of the concentration tank, and slag discharge ports are assembled at the lower positions of the two sides of the concentration tank. According to the waste acid concentration device, the steam inlet is formed in the upper position of the left side of the concentration tank, so that steam can be introduced from the steam inlet, and then a flow guide purpose is achieved under the assembly of the steam circulating pipe, so that waste acid is concentrated in the concentration tank, and dirt generated during concentration is adhered to the inner wall of the concentration tank; at the moment, a first telescopic rod can be selectively started to work to push a hollow ring to gradually move downwards, and scraping plates are fixed to the two sides of the hollow ring, so that dirt on the inner wall can be scraped away through the scraping plates in the moving process of the hollow ring, and impurities can be discharged from a slag discharging opening; therefore, in the working process, the overall inner wall dirt cleaning capacity is well improved.

Description

Technical Field

[0001] This utility model relates to the field of waste acid treatment technology in titanium dioxide processing, specifically a waste acid concentration device to prevent scaling and clogging. Background Technology

[0002] Titanium dioxide is an important inorganic chemical pigment, mainly composed of titanium dioxide. It has the characteristics of high whiteness, strong hiding power and strong weather resistance, and is widely used in coatings, papermaking, cosmetics and other industrial fields. However, in the process of producing titanium dioxide by the sulfuric acid process, waste acid is generated, mainly composed of sulfuric acid and ferrous sulfate.

[0003] Statistics show that producing 1 ton of titanium dioxide will generate 7-10 tons of waste acid with a concentration of about 20%. During the concentration process, as the acidity increases, a large amount of scale will form on the walls of the concentrator tubes, causing serious pipe blockage and affecting the continuous and stable operation of waste acid concentration. If disassembly is used for cleaning, it is not only time-consuming and labor-intensive, but also easy to damage the equipment during the disassembly process, which seriously affects production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a waste acid concentration device that prevents scaling and blockage, in order to solve the problem mentioned in the background art that as the acidity increases, a large amount of scale will form on the concentrator tube wall, causing serious pipe blockage and affecting the continuous and stable operation of waste acid concentration. If disassembly is used for cleaning, it is not only time-consuming and labor-intensive, but also easy to damage the equipment during the disassembly process, which seriously affects the production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste acid concentration device for preventing scaling and clogging, comprising a concentration tank and a maintenance compartment door. A steam inlet is installed at the upper left side of the concentration tank, and a connecting pipe is connected to the side of the steam inlet. Steam flow pipes are installed at both sides of the bottom of the connecting pipe, and a first telescopic rod is installed at both sides of the bottom of the connecting pipe. A hollow ring is connected to the bottom of the first telescopic rod, and scrapers are fixed on both sides of the outer wall of the hollow ring. Slag discharge ports are installed at the lower sides of the concentration tank.

[0006] As a further technical solution of this utility model, the steam inlet is equipped with a solenoid valve, and the first telescopic rod is symmetrically distributed about the central axis of the connecting pipe.

[0007] As a further technical solution of this utility model, the scraper is symmetrically distributed about the central axis of the hollow ring, and the outer wall of the scraper is coated with an acid-resistant layer.

[0008] As a further technical solution of this utility model, the steam flow pipe is symmetrically distributed about the central axis of the connecting pipe, and the tail end of the steam flow pipe is equipped with an exhaust port.

[0009] As a further technical solution of this utility model, the bottom of the concentration tank is equipped with a discharge port, and the slag discharge ports are symmetrically distributed about the central axis of the concentration tank.

[0010] As a further technical solution of this utility model, guide plates are installed at the lower positions of the front and rear ends inside the concentration tank, a feed inlet is installed at the top of the concentration tank, and a guide cylinder is installed at the top of the concentration tank below the feed inlet.

[0011] As a further technical solution of this utility model, arc-shaped mounting plates are fixed at both ends of the inner wall of the feed port, and a filter screen plate is assembled at the top of the arc-shaped mounting plate. A mounting bolt connects the arc-shaped mounting plate and the filter screen plate.

[0012] As a further technical solution of this utility model, the outer wall of the filter screen is coated with an acid-resistant coating, and the arc-shaped mounting plate is symmetrically distributed about the central axis of the feed inlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this waste acid concentration device that prevents scaling and clogging not only improves the ability to clean the dirt on the inner wall, but also improves the initial filtration capacity and material guiding capacity of the waste acid concentration device.

[0014] (1) A steam inlet is installed on the upper left side of the concentration tank, so steam can be introduced at the steam inlet and then guided by the steam flow pipe. In this way, the waste acid is concentrated in the concentration tank. The dirt generated during the concentration adheres to the inner wall of the concentration tank. At this time, the first telescopic rod can be started to push the hollow ring to move downwards. Scrapers are fixed on both sides of the hollow ring. Therefore, the dirt on the inner wall can be scraped off by the scrapers during the movement of the hollow ring, and the impurities can be discharged at the slag outlet. Therefore, the overall inner wall dirt cleaning ability is improved in the working process.

[0015] (2) By installing and fixing the arc-shaped mounting plate on the front and rear positions of the inner wall of the feed inlet, and using the mounting bolts to assemble the filter screen plate on the upper position of the arc-shaped mounting plate, the material can be filtered through the filter screen plate before feeding, reducing the problem of impurities. At the same time, an anti-acid coating is applied to the outer wall of the filter screen plate, thereby improving a certain level of protection and increasing the service life of the filter screen plate.

[0016] (3) By assembling the guide tube on the upper part of the inner wall of the concentration tank, and the assembly position of the guide tube corresponds to the feed port, the guide tube can be used to guide the material when feeding at the feed port. The guide plate is assembled at the front and rear positions inside the concentration tank, specifically above the discharge port, so it plays a certain guiding purpose during the discharge process. Therefore, the overall guiding capacity is improved in the working process. Attached Figure Description

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

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a top view schematic diagram of the hollow ring structure of this utility model;

[0020] Figure 4 This is a top view cross-sectional structural diagram of the feed inlet of this utility model.

[0021] In the diagram: 1. Concentrator; 2. Feed inlet; 3. Guide tube; 4. Connecting pipe; 5. First telescopic rod; 6. Hollow ring; 7. Slag discharge port; 8. Discharge port; 9. Guide plate; 10. Steam flow pipe; 11. Steam inlet; 12. Maintenance compartment door; 13. Scraper; 14. Arc-shaped mounting plate; 15. Filter screen; 16. Mounting bolt; 17. Acid-resistant coating. 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 An embodiment of this utility model provides a waste acid concentration device for preventing scaling and clogging, including a concentration tank 1 and a maintenance door 12. A steam inlet 11 is installed at the upper left side of the concentration tank 1. A connecting pipe 4 is connected to the side of the steam inlet 11. Steam flow pipes 10 are installed at both sides of the bottom of the connecting pipe 4. A first telescopic rod 5 is installed at both sides of the bottom of the connecting pipe 4. A hollow ring 6 is connected to the bottom of the first telescopic rod 5. Scrapers 13 are fixed on both sides of the outer wall of the hollow ring 6. Slag discharge ports 7 are installed at the lower sides of the concentration tank 1.

[0024] The steam inlet 11 is equipped with a solenoid valve, and the first telescopic rod 5 is symmetrically distributed about the central axis of the connecting pipe 4.

[0025] The scrapers 13 are symmetrically distributed about the central axis of the hollow ring 6, and the outer wall of the scrapers 13 is coated with an acid-resistant layer.

[0026] The steam flow pipe 10 is symmetrically distributed about the central axis of the connecting pipe 4, and an exhaust port is installed at the tail end of the steam flow pipe 10.

[0027] The bottom of the concentration tank 1 is equipped with a discharge port 8, and the slag discharge ports 7 are symmetrically distributed about the central axis of the concentration tank 1.

[0028] Guide plates 9 are installed at the lower positions of the front and rear ends inside the concentration tank 1. A feed inlet 2 is installed at the top of the concentration tank 1. A guide cylinder 3 is installed at the top of the concentration tank 1 below the feed inlet 2.

[0029] Arc-shaped mounting plates 14 are fixed at both ends of the inner wall of the feed inlet 2. A filter screen plate 15 is fitted at the top of the arc-shaped mounting plate 14. A mounting bolt 16 connects the arc-shaped mounting plate 14 and the filter screen plate 15.

[0030] The outer wall of the filter screen 15 is coated with an acid-resistant coating 17, and the arc-shaped mounting plates 14 are symmetrically distributed about the central axis of the feed inlet 2.

[0031] Furthermore, during the movement of the hollow ring 6, the scraper 13 can be used to scrape off the dirt on the inner wall. In this process, the waste acid can be discharged first, and then the dirt can be treated.

[0032] Furthermore, solenoid valves and other components are installed in the feed inlet 2, slag discharge outlet 7, discharge outlet 8, steam inlet 11 and other pipelines to facilitate the opening and closing of the flow.

[0033] Furthermore, the maintenance door 12 is installed at the front end of the concentration tank 1, which facilitates subsequent maintenance and other work.

[0034] Working principle: First, during operation, the arc-shaped mounting plate 14 is installed and fixed at the front and rear positions of the inner wall of the feed inlet 2. The filter screen plate 15 is assembled above the arc-shaped mounting plate 14 using the mounting bolt 16. Therefore, when the material is fed, it can be filtered through the filter screen plate 15 before being fed into the inside of the concentration tank 1 through the feed inlet 2 and guided by the guide cylinder 3. Then, steam is introduced at the steam inlet 11 and guided by the steam flow pipe 10. In this way, the waste acid is concentrated in the concentration tank 1. The dirt generated during the concentration adheres to the inner wall of the concentration tank 1. At this time, the first telescopic rod 5 can be activated to push the hollow ring 6 to move downwards. The scraper 13 is fixed on both sides of the hollow ring 6. Therefore, during the movement of the hollow ring 6, the scraper 13 can be used to scrape off the dirt on the inner wall, and the impurities can be discharged at the slag discharge port 7.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

Claims

1. A waste acid concentration device for preventing scaling and clogging, comprising a concentration tank (1) and a maintenance compartment door (12), characterized in that: A steam inlet (11) is installed on the upper left side of the concentration tank (1). A connecting pipe (4) is connected to the side of the steam inlet (11). Steam flow pipes (10) are installed on both sides of the bottom of the connecting pipe (4). A first telescopic rod (5) is installed on both sides of the bottom of the connecting pipe (4). A hollow ring (6) is connected to the bottom of the first telescopic rod (5). Scrapers (13) are fixed on both sides of the outer wall of the hollow ring (6). A slag discharge port (7) is installed on the lower left side of the concentration tank (1).

2. The waste acid concentration device for preventing scaling and clogging according to claim 1, characterized in that: The steam inlet (11) is equipped with a solenoid valve, and the first telescopic rod (5) is symmetrically distributed about the central axis of the connecting pipe (4).

3. The waste acid concentration device for preventing scaling and clogging according to claim 1, characterized in that: The scraper (13) is symmetrically distributed about the central axis of the hollow ring (6), and the outer wall of the scraper (13) is coated with an acid-resistant layer.

4. The waste acid concentration device for preventing scaling and clogging according to claim 1, characterized in that: The steam flow pipe (10) is symmetrically distributed about the central axis of the connecting pipe (4), and the tail end of the steam flow pipe (10) is equipped with an exhaust port.

5. A waste acid concentration device for preventing scaling and clogging according to claim 1, characterized in that: The bottom of the concentration tank (1) is equipped with a discharge port (8), and the slag discharge port (7) is symmetrically distributed about the central axis of the concentration tank (1).

6. The waste acid concentration device for preventing scaling and clogging according to claim 1, characterized in that: The concentration tank (1) is equipped with guide plates (9) at the lower positions of the front and rear ends. The concentration tank (1) is equipped with a feed inlet (2) at the top position. The concentration tank (1) is equipped with a guide cylinder (3) at the top position below the feed inlet (2).

7. A waste acid concentration device for preventing scaling and clogging according to claim 6, characterized in that: Arc-shaped mounting plates (14) are fixed at both ends of the inner wall of the feed inlet (2). A filter screen plate (15) is mounted on the top of the arc-shaped mounting plate (14). A mounting bolt (16) connects the arc-shaped mounting plate (14) and the filter screen plate (15).

8. A waste acid concentration device for preventing scaling and clogging according to claim 7, characterized in that: The outer wall of the filter screen (15) is coated with an acid-resistant coating (17), and the arc-shaped mounting plate (14) is symmetrically distributed about the central axis of the feed inlet (2).

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