Water descaling device for cement production

Abstract

The utility model relates to the technical field of water descaling, in particular to a water descaling device for cement production, which comprises a base body and a feeding component, a cavity is arranged in the base body, two sides of the cavity are communicated with a liquid inlet and a liquid outlet, the feeding component is rotatably mounted in the cavity, a liquid inlet pipe is fixedly mounted in the cavity in a penetrating manner, and the liquid inlet pipe is communicated with the liquid inlet. A liquid inlet pipe is coaxially and rotationally mounted in the feeding assembly, and the feeding assembly rotates by utilizing kinetic energy of fluid and controls the liquid inlet pipe to perform quantitative feeding; the problem that the scale inhibition effect is poor due to uneven distribution and mixing after the scale inhibitor is added is solved.

Description

Technical Field

[0001] This utility model relates to the field of water descaling technology, specifically a descaling device for cement production water. Background Technology

[0002] In cement production, cooling water circulation systems are used to ensure the safe operation of high-temperature equipment, maintain production continuity, and save energy and reduce consumption. However, due to the high temperature of various high-temperature equipment, such as waste heat power generation systems, the solubility of soluble salts in the circulating cooling water decreases, and the evaporation and concentration cause the salts to become supersaturated, resulting in precipitation and scale formation. This can easily lead to a decrease in heat exchange efficiency and affect the cement production process.

[0003] However, although existing descaling devices for cement production water can also achieve automatic quantitative addition of scale inhibitors, such as the utility model patent with application number "202323486240.0" entitled "A Descaling Device for Circulating Water of Cement Kiln Waste Heat Power Generation", this technology can achieve automatic quantitative addition of scale inhibitors, but the scale inhibitors are easy to be unevenly distributed and poorly mixed after addition, which easily leads to poor scale inhibition effect.

[0004] Therefore, this utility model provides a descaling device for cement production water to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the scale inhibitor is not evenly distributed and mixed after being added, resulting in poor scale inhibition effect.

[0006] This utility model provides the following technical solution: a descaling device for cement production water, comprising a base and a feeding assembly. A cavity is provided in the base, and an inlet and an outlet are connected to both sides of the cavity. The feeding assembly is rotatably installed in the cavity, and an inlet pipe is fixedly installed through the cavity. The inlet pipe is rotatably installed coaxially in the feeding assembly. The feeding assembly uses fluid kinetic energy to rotate and control the inlet pipe to feed a quantitative amount of material.

[0007] The feeding assembly includes a first frame, a first blade, a rotating shaft, and a feeding control assembly. The first frame is fixedly installed inside the cavity, and the first blade is rotatably installed inside the first frame. A hollow rotating shaft is fixedly installed coaxially with the first blade. An inlet pipe is rotatably installed inside the rotating shaft, and the rotating shaft and the inlet pipe are equipped with a feeding control assembly that cooperates with each other.

[0008] The feeding control component includes a first through hole and a second through hole. The first through hole with a fan-shaped structure is opened on the circumferential surface of the rotating shaft, and the second through hole with a fan-shaped structure is opened on the circumferential surface of the liquid inlet pipe.

[0009] There are multiple first and second through holes arranged in an axial array.

[0010] Multiple first through holes and / or second through holes are opened in an axial direction with equal angles at an angle.

[0011] An installation groove is provided in the cavity, and the first frame is slidably installed in the installation groove. An expansion joint is fixedly installed between the first frame and the inner wall of the installation groove.

[0012] A first turbulence fan blade is rotatably installed inside the liquid outlet.

[0013] A second turbulence fan blade is rotatably mounted on the surface of the liquid inlet pipe.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model utilizes liquid to drive the first blade and the rotating shaft to rotate relative to the liquid inlet pipe, so that the first through hole will intermittently and gradually overlap with the second through hole on the surface of the liquid inlet for feeding. This allows for automatic control of the dosage of the agent during the circulation of water, and also facilitates precise control of the input amount of scale inhibitor, avoiding agent waste and keeping it above the critical inhibition concentration. At the same time, the second turbulence fan blade immediately agitates the agent after it enters, and further enhances the mixing effect of the agent and the circulating cooling water after passing through the liquid outlet, thereby improving the scale inhibition effect.

[0016] 2. In this utility model, multiple first or second through holes with equal axial angle spiral offset can be used to sequentially or simultaneously add agents at different angles. This allows agents to be added at different positions and at different angles, thereby forming a multi-source diffusion superposition to improve mixing speed and uniformity, or sequentially adding agents to form a concentration gradient along the process with a lower concentration at the beginning and a higher concentration at the end, thus improving the scale inhibition effect. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

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

[0019] Figure 2 This is a schematic diagram of the axially equiangular spiral array of one of the rotating shafts and inlet pipes of this utility model.

[0020] Figure 3This is a schematic diagram of the structure of the present invention, in which both the rotating shaft and the liquid inlet pipe are arranged in a spiral array at equal angles along the axial direction.

[0021] Figure 4 This is a schematic diagram of the feeding assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the second turbulence fan blade of this utility model.

[0023] In the figure: 1. Matrix; 11. Cavity; 12. Liquid inlet; 13. Liquid outlet; 14. Liquid inlet pipe; 15. Mounting groove; 16. Telescopic component; 2. Feeding assembly; 21. First frame; 22. First blade; 23. Rotating shaft; 24. Feeding control assembly; 241. First through hole; 242. Second through hole; 25. First turbulence fan blade; 26. Second turbulence fan blade. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for 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; therefore, they should not be construed as limitations on this utility model.

[0027] It should also be noted that, in the description of this utility model, 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 according to the specific circumstances.

[0028] Based on the existing problem of poor scale inhibition effect caused by uneven distribution and mixing after the scale inhibitor is added, such as Figures 1 to 5 As shown in the figure, this embodiment of the present disclosure provides a descaling device for cement production water, including a base 1 and a feeding assembly 2. A cavity 11 is provided in the base 1, and an inlet 12 and an outlet 13 are connected to both sides of the cavity 11. The feeding assembly 2 is rotatably installed in the cavity 11, and an inlet pipe 14 for inputting reagents is fixedly installed through the cavity 11. The inlet pipe 14 is rotatably installed coaxially in the feeding assembly 2.

[0029] It should be noted that the inlet pipe 14 contains a scale inhibitor as described in the prior art.

[0030] like Figure 1 and 4 As shown, the feeding assembly 2 includes a first frame 21, a first blade 22, a rotating shaft 23, and a feeding control assembly 24. The first frame 21 is fixedly installed inside the cavity 11. The first blade 22 is rotatably installed inside the first frame 21. The first blade 22 is coaxially fixedly installed with a hollow rotating shaft 23. An inlet pipe 14 is rotatably installed inside the rotating shaft 23. The rotating shaft 23 and the inlet pipe 14 are equipped with a feeding control assembly 24 that cooperates with each other.

[0031] In the cement production process, the circulating cooling water of the waste heat power generation system enters the cavity 11 through the inlet 12 and flows towards the outlet 13. When the circulating cooling water enters the cavity 11, it passes through the first blade 22, which is driven to rotate by the circulating cooling water. When the first blade 22 rotates, it drives the rotating shaft 23 to rotate synchronously. The relative rotation of the rotating shaft 23 and the inlet 12, in conjunction with the feed control component 24, quantitatively controls the input dosage of the scale inhibitor. On the one hand, it can automatically control the addition of the agent during the circulation of the circulating water; on the other hand, it can also facilitate precise control of the input amount of the scale inhibitor, avoid waste of the agent, and keep it above the critical inhibition concentration.

[0032] like Figure 2As shown in Figure 3, the feed control component 24 includes a first through hole 241 and a second through hole 242. The circumferential surface of the rotating shaft 23 has a first through hole 241 with a fan-shaped structure, and the circumferential surface of the liquid inlet pipe 14 has a second through hole 242 with a fan-shaped structure.

[0033] As the first blade 22 rotates, it drives the rotating shaft 23 to rotate synchronously. During this process, the first through hole 241 on the surface of the rotating shaft 23 will intermittently and gradually overlap with the second through hole 242 on the surface of the liquid inlet 12, thereby completing the feeding process as the first through hole 241 and the second through hole 242 gradually overlap.

[0034] It should be noted that, in this embodiment of the present disclosure, the amount of liquid entering the agent can be controlled by the fan-shaped size of the first through hole 241.

[0035] like Figure 2 As shown in Figure 3, there are multiple first through holes 241 and second through holes 242 arranged along the axial direction.

[0036] The multiple first through holes 241 and second through holes 242 in the axial array can realize the addition of the agent at multiple locations, thereby improving the uniformity of the agent distribution, which is beneficial to improving the mixing effect of the agent and the circulating cooling water, and improving the scale inhibition effect of the agent on the circulating cooling water.

[0037] like Figure 2 As shown in Figure 3, multiple first through holes 241 or second through holes 242 are opened in an axial direction with equal angle spiral offset.

[0038] Multiple first through holes 241 or second through holes 242 with axially equal-angle spiral offset can sequentially or simultaneously inject the agent at different angles, thereby enabling the agent to be injected at different angles while being injected at different positions, thus further improving the uniformity of agent distribution, improving the mixing effect of the agent with the circulating cooling water, and further improving the scale inhibition effect of the agent on the circulating cooling water.

[0039] like Figure 2 and 3 As shown, it should be noted that if either the first through-hole 241 or the second through-hole 242 is spirally offset at an equal axial angle, the reagent can be sequentially added at different positions and directions. This allows the reagent to be injected simultaneously from multiple points, forming a multi-source diffusion superposition on the pipe cross-section, thereby improving the mixing speed and uniformity. Alternatively, if both the first through-hole 241 and the second through-hole 242 are opened with the same spiral offset at an equal axial angle, the reagent can be simultaneously added at different positions and in different directions when the shaft 23 rotates. This allows the reagent to be added sequentially and at timed intervals, which is beneficial for forming a concentration gradient along the pipe that is lower at the beginning and higher at the end. This can create a local high concentration in the ion concentration peak region, such as the inlet of the heat exchanger tube bundle, thereby improving the targeting of scale prevention.

[0040] like Figure 1 As shown, an installation groove 15 is provided in the cavity 11, and the first frame 21 is slidably installed in the installation groove 15. An extension member 16 is fixedly installed between the first frame 21 and the inner wall of the installation groove 15.

[0041] The telescopic component 16 can control the first frame 21 to slide horizontally in the mounting groove 15, thereby driving the first blade 22 and the rotating shaft 23 to move horizontally. This allows control over the width of the axial overlap between the first through hole 241 on the surface of the rotating shaft 23 and the second through hole 242 on the surface of the liquid inlet pipe 14. The axial overlap width can then be used to control the quantitative drug dosage, which is beneficial for precise control and flexible adjustment of the drug input, thus avoiding drug waste and facilitating maintenance above the critical inhibitory concentration.

[0042] It should be noted that the telescopic member 16 can use any hydraulic / pneumatic cylinder or electric push rod that is resistant to high temperature and has a high temperature seal, which is available in the prior art.

[0043] like Figure 1 As shown, a first turbulence fan blade 25 is rotatably installed inside the liquid outlet 13. The first turbulence fan blade 25 can agitate the liquid after the agent is added by rotating the shaft 23 in conjunction with the liquid inlet 12, thereby improving the mixing effect of the agent and the circulating cooling water, which is beneficial to improving the scale inhibition effect of the scale inhibitor on the circulating cooling water.

[0044] like Figure 1 and 5 As shown, a second turbulence fan blade 26 is rotatably mounted on the surface of the liquid inlet pipe 14. The second turbulence fan blade 26 can immediately agitate the water after the agent is added, thereby further improving the mixing effect of the agent and the circulating cooling water, which is beneficial to improving the scale inhibition effect of the scale inhibitor on the circulating cooling water.

[0045] The second turbulence fan blade can further turbulent the circulating cooling water based on the first turbulence fan blade, improve the mixing effect with the agent, and further improve the scale inhibition effect of the scale inhibitor on the circulating cooling water.

[0046] It should be noted that the first blade 22, the first turbulence fan blade 25 and the second turbulence fan blade 26 adopt the propulsion type fan blade in the prior art, and the blade tilt angle is maintained at 30°~45°.

[0047] When descaling the circulating cooling water of the waste heat power generation system in cement production: the circulating cooling water enters the cavity 11 through the inlet 12 and flows towards the outlet 13. As the circulating cooling water enters the cavity 11, it passes through the first blade 22, which is driven to rotate. The rotation of the first blade 22 drives the rotating shaft 23 to rotate synchronously. During this synchronous rotation, the first through hole 241 on the surface of the rotating shaft 23 intermittently overlaps with the second through hole 242 on the surface of the inlet 12, thus completing the feeding process. This method allows for automatic control and quantitative control of the dosage of the scale inhibitor during the circulating water flow; it also facilitates precise control of the scale inhibitor input, avoiding waste and maintaining the concentration above the critical inhibition level.

[0048] Multiple first through holes 241 or second through holes 242 with axially equal-angle spiral offset can sequentially or simultaneously add agents at different angles. This allows agents to be added at different locations and at different angles, thereby forming a multi-source diffusion superposition to improve mixing speed and uniformity, or sequentially adding agents to form a concentration gradient along the process with a lower concentration at the beginning and a higher concentration at the end, thus improving the scale inhibition effect.

[0049] After the agent is added, the circulating cooling water mixed with the agent first flows through the second fan blade. The second turbulence fan blade 26 can immediately turbulent the water after the agent is added. Then, it passes through the first turbulence fan blade and the rotation of the first turbulence fan blade turbules the circulating water mixed with the agent, further enhancing the mixing effect of the agent and the circulating water, and further improving the scale inhibition effect of the scale inhibitor on the circulating cooling water.

[0050] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A descaling device for cement production water, comprising a base (1) and a feeding assembly (2), characterized in that: A cavity (11) is provided inside the base (1). An inlet (12) and an outlet (13) are connected to both sides of the cavity (11). A feeding assembly (2) is installed inside the cavity (11). An inlet pipe (14) is fixedly installed through the cavity (11). The inlet pipe (14) is rotatably installed coaxially inside the feeding assembly (2). The feeding assembly (2) uses fluid kinetic energy to rotate and control the inlet pipe (14) to feed a fixed amount of material.

2. The descaling device for cement production water according to claim 1, characterized in that: The feeding assembly (2) includes a first frame (21), a first blade (22), a rotating shaft (23), and a feeding control assembly (24). The first frame (21) is installed in the cavity (11). The first blade (22) is rotatably installed in the first frame (21). The first blade (22) is coaxially fixedly installed with a hollow rotating shaft (23). The liquid inlet pipe (14) is rotatably installed inside the rotating shaft (23). The rotating shaft (23) and the liquid inlet pipe (14) inside are provided with a feeding control assembly (24) that cooperates with each other.

3. The descaling device for cement production water according to claim 2, characterized in that: The feed control component (24) includes a first through hole (241) and a second through hole (242). The circumferential surface of the rotating shaft (23) is provided with a first through hole (241) in a fan shape, and the circumferential surface of the liquid inlet pipe (14) is provided with a second through hole (242) in a fan shape.

4. A descaling device for cement production water according to claim 3, characterized in that: The first through hole (241) and the second through hole (242) are arranged in multiple arrays along the axial direction.

5. A descaling device for cement production water according to claim 4, characterized in that: Multiple first through holes (241) and / or second through holes (242) are opened in an axial direction with equal angles at an angle.

6. A descaling device for cement production water according to claim 2, characterized in that: An installation groove (15) is provided in the cavity (11), and the first frame (21) is slidably installed in the installation groove (15). An expansion joint (16) is fixedly installed between the first frame (21) and the inner wall of the installation groove (15).

7. A descaling device for cement production water according to claim 1, characterized in that: The first turbulence fan blade (25) is rotatably installed inside the liquid outlet (13).

8. A descaling device for cement production water according to claim 1, characterized in that: A second turbulence fan blade (26) is rotatably mounted on the surface of the liquid inlet pipe (14).

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