Urea dissolving device for industrial denitration

Abstract

This invention relates to the field of industrial technology and discloses a urea dissolving device for industrial denitrification, comprising a dissolving tank and a stirring mechanism. The dissolving tank includes a tank body and a tank lid; the tank body is an open-top barrel structure with a discharge port equipped with a valve on the bottom wall. The tank lid fits snugly onto the top of the tank body, and an inlet is formed on the top of the lid. A heating wire is embedded in the side wall of the tank body. The stirring mechanism has a rotating shaft that passes through and is rotatably fitted onto the tank lid. A first spiral stirring blade and a second spiral stirring blade are fixedly mounted on the rotating shaft. The first spiral stirring blade is located inside the second spiral stirring blade, and their spiral directions are opposite. The advantages compared to existing technologies are: during stirring and rotation, the stirring mechanism can drive the water flow inside the solution up and down, achieving thorough stirring while also causing the settled urea particles to rise with the water flow, allowing the urea particles to fully contact and dissolve in the solution, thus resulting in a more uniform dissolution of the urea particles.

Description

Technical Field

[0001] This utility model relates to the field of industrial technology, specifically to an industrial denitrification urea dissolving device. Background Technology

[0002] In industrial production, denitrification of discharged waste is an important task, and urea is the most commonly used urea for this purpose. Urea needs to be dissolved before denitrification can proceed, thus requiring a device that facilitates urea dissolution. Existing devices, when adding urea at a fixed inlet, cause urea particles to accumulate and fall, making it difficult to ensure uniform contact between the urea and the solution. Furthermore, the urea tends to settle to the bottom, with most particles settling before dissolving, resulting in uneven mixing. Therefore, a novel device is proposed to solve this problem. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide an industrial denitrification urea dissolving device. Through the design of two spiral structures on the stirring shaft, the rotating stirring device carries up the urea particles that have settled to the bottom, so that the urea particles are fully dissolved.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0005] An industrial denitrification urea dissolving device includes a dissolving tank and a stirring mechanism.

[0006] The dissolving tank includes a tank body and a tank lid; the tank body is a barrel structure with an open top, and a discharge port with a valve is provided on the bottom wall of the tank body. The tank lid fits and covers the top of the tank body, and a feed port is formed on the top of the tank lid.

[0007] The heating wire is embedded in the side wall of the tank to heat the solution to the melting point of the urea particles.

[0008] The stirring mechanism includes a rotating shaft, a first spiral stirring blade, and a second spiral stirring blade. The top of the rotating shaft passes through and is rotatably sleeved on the tank cover. After the first spiral stirring blade is sleeved and fixed on the rotating shaft, the second spiral stirring blade is also mounted and fixed. The first spiral stirring blade is located inside the second spiral stirring blade and has the opposite spiral direction to the second spiral stirring blade.

[0009] As an improvement, the stirring mechanism also includes cylindrical rods. The top and bottom of the first spiral stirring blade are respectively provided with cylindrical rods integrally formed on the rotating shaft, and the top and bottom cylindrical rods are arranged in a pair of mirror images. The two ends of the second spiral stirring blade are respectively fixed to the free ends of the two diagonally opposite cylindrical rods. When rotating, the solution can flow up and down, thereby driving the urea particles and preventing the urea particles from sinking to the bottom and dissolving insufficiently.

[0010] As an improvement, the stirring mechanism also includes a motor, which is fixed to the tank lid by a mounting plate and connected to the top of the rotating shaft to provide power for the rotation of the shaft.

[0011] As an improvement, a bushing is fitted onto the top of the shaft and rotatably connected to the can lid, making the shaft rotation more stable.

[0012] As an improvement, an insulating sleeve is installed on the outer wall of the tank to keep the heated solution warm.

[0013] As an improvement, multiple support legs are formed at the bottom of the tank to support the height of the melting tank from the ground.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] The bottom of the stirring shaft of this utility model adopts a combination design of spiral stirring blades, that is, through the cooperation of the first spiral stirring blade and the second spiral stirring blade, the first spiral stirring blade is located inside the second spiral stirring blade and the spiral direction is opposite to that of the second spiral stirring blade. When rotating, it can drive the water inside the solution to flow up and down, so as to achieve full stirring. At the same time, it can also drive the urea particles that have settled to the bottom to rise with the water flow, so that the urea particles can fully contact the solution and dissolve, thereby making the urea particles dissolve more evenly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the dissolving tank structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the dissolving tank structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the can lid structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the stirring device structure of this utility model.

[0020] As shown in the figure: 1. Tank body; 2. Tank cover; 3. Inlet; 4. Rotating shaft; 5. First spiral stirring blade; 6. Second spiral stirring blade; 7. Heating wire; 8. Bushing; 9. Motor; 10. Outlet; 11. Cylindrical rod; 12. Support leg; 13. Insulation sleeve; 14. Fixing plate. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] like Figure 1 , 2 As shown, an industrial denitrification urea dissolving device includes a dissolving tank and a stirring mechanism. The dissolving tank includes a tank body 1 and a tank cover 2. The tank body 1 is a barrel structure with an open top, and the solution is injected into the tank body through the opening. Figure 1 As shown, the side wall of the tank 1 is covered with an insulation sleeve 13, and a support leg 12 is formed at the bottom of the tank 1 to support the distance between the dissolving tank and the ground. A discharge port 10 with a valve is provided on the bottom wall of the tank. After the urea granules are dissolved, they flow out of the tank 1 through the discharge port 10.

[0024] After the solution is injected, the lid 2 fits onto the top of the tank body 1, as follows: Figure 3 As shown, a through hole is formed at the center of the can lid 2, and the bushing 8 is sleeved and fixed in the through hole. The feed inlet 3 is fixedly formed at the top of the can lid; Figure 2 As shown, the heating wire 7 is embedded in the side wall of the tank 1 to provide a heat source for the solution and heat the solution to the melting point of the urea particles.

[0025] like Figure 4As shown, the stirring mechanism includes a rotating shaft 4, a first spiral stirring blade 5, and a second spiral stirring blade 6. The top of the rotating shaft 4 is rotatably sleeved in a bushing 8. After the first spiral stirring blade 5 is sleeved and fixed on the rotating shaft 4, the second spiral stirring blade 6 is also mounted and fixed. The first spiral stirring blade 5 is located inside the second spiral stirring blade 6. The spiral directions of the first spiral stirring blade 5 and the second spiral stirring blade 6 are opposite. The top and bottom of the rotating shaft 4 form a cylindrical rod 11, and a pair of cylindrical rods 11 are arranged in a mirror image on the left and right. The two ends of the second spiral stirring blade 6 are respectively fixed to the free ends of the two diagonally opposite cylindrical rods 11. The stirring mechanism also includes a motor 9. The motor 9 is fixed to the tank cover 2 through a fixing plate 14 formed on the tank cover 2 and is driven by the top of the rotating shaft 4. When the rotating shaft 4 rotates counterclockwise, the solution inside the second spiral stirring blade 6 forms a downward water flow, and the solution outside forms an upward water flow, which drives the urea particles to move with the water flow.

[0026] In the specific implementation of this embodiment:

[0027] When dissolving urea granules, first pour the solution into tank 1, fix the stirring device, and then close the tank lid 2. Turn on the heating wire 7 to heat the solution to the melting point of the urea granules. Then, start the motor 9 to drive the rotating shaft 4 to rotate counterclockwise and pour the urea granules into the feeding port 3. Through the high-speed rotation of the rotating shaft 4, the first spiral stirring blade 5 and the second spiral stirring blade 6 drive the solution to flow up and down. While stirring the urea granules, the granules that have settled to the bottom can float upward with the water flow, thus accelerating the dissolution of the urea granules.

[0028] After the urea granules have fully dissolved, open the valve at outlet 10 to allow the dissolved urea granules to flow out through the valve.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A urea dissolving device for industrial denitrification, characterized in that: The dissolving tank includes a tank body (1) and a tank cover (2); the tank body (1) is a barrel structure with an open top, and a discharge port (10) with a valve is provided on the bottom wall of the tank body (1). The tank cover (2) is adapted to cover the top of the tank body (1), and a feed port (3) is formed on the top of the tank cover (2). The heating wire (7) is embedded in the side wall of the tank (1); The stirring mechanism includes a rotating shaft (4), a first spiral stirring blade (5), and a second spiral stirring blade (6). The top of the rotating shaft (4) passes through and is rotatably sleeved on the tank cover (2). After the first spiral stirring blade (5) is sleeved and fixed on the rotating shaft (4), the second spiral stirring blade (6) is also mounted and fixed. The first spiral stirring blade (5) is located inside the second spiral stirring blade (6) and has a spiral direction opposite to that of the second spiral stirring blade (6).

2. The urea dissolving device for industrial denitrification according to claim 1, characterized in that: The stirring mechanism also includes cylindrical rods (11). The top and bottom of the first spiral stirring blade (5) are respectively provided with cylindrical rods (11) integrally formed on the rotating shaft (4), and the top and bottom cylindrical rods (11) are arranged in a pair of mirror images. The two ends of the second spiral stirring blade (6) are respectively fixed to the free ends of the two diagonally opposite cylindrical rods (11).

3. The urea dissolving device for industrial denitrification according to claim 2, characterized in that: The stirring mechanism also includes a motor (9), which is fixed on the lid (2) and driven to the top of the rotating shaft (4).

4. The urea dissolving device for industrial denitrification according to claim 2, characterized in that: It also includes a bushing (8), the top of the rotating shaft (4) is fitted with the bushing (8) and rotatably connected to the can lid (2).

5. The urea dissolving device for industrial denitrification according to claim 1, characterized in that: The outer wall of the tank (1) is covered with an insulating sleeve (15).

6. The urea dissolving device for industrial denitrification according to claim 1, characterized in that: The bottom of the tank (1) has multiple supporting legs (12).

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