Anti-scaling device for spray header of crystallization cooling tower

Abstract

The utility model relates to power environment-friendly operation of a steel plant, in particular to an anti-scaling device for a spray header of a crystallization cooling tower. The problem of scaling of the spraying head of the crystallization cooling tower is effectively solved, the cost for cleaning scale on the spraying head of the crystallization cooling tower is reduced, meanwhile, the working labor intensity of workers is relieved, and the safety of the working environment of the workers is ensured. Comprising a mounting block; an air cylinder is installed at the top of the installation block, a spraying head is arranged at the bottom of the installation block, a cavity is formed in the installation block, the spraying head is provided with a cavity, and the cavity is communicated with the cavity to jointly form a containing cavity used for containing the dirt removing head. An air cylinder rod of the air cylinder extends into the containing cavity, the air cylinder rod is connected with a pin shaft, and the pin shaft extends into the pin shaft hole of the scale removing head. A circle of groove is formed in the outer wall of the pin shaft along the periphery, and a stop pin hole is formed in the scale cleaning head; and when the pin shaft extends into the pin shaft hole, the pin shaft is embedded into the groove after entering from the stop pin hole through the stop pin. A water inlet communicated with the cavity is formed in the side wall of the cavity.

Description

Technical Field

[0001] This utility model relates to power and environmental protection operations in steel plants, and more particularly to a scale prevention device for spray heads in crystallization cooling towers. Background Technology

[0002] In the steel smelting production process, the safe and stable operation of the power and environmental protection work area is crucial. Among these, the normal operation of the crystallizer water supply pump is directly related to the continuity of continuous casting production. When the temperature of the crystallization circulating water is too high, the crystallization cooling tower, by activating its spray pumps to lower the temperature, becomes a key link in ensuring normal continuous casting production. However, currently, the crystallization cooling tower uses fresh water as its water source. Due to the high calcium hardness content of this fresh water, the spray heads of the crystallization cooling tower are prone to severe scaling. This not only significantly reduces the effectiveness of lowering the crystallization water temperature but also leads to a series of maintenance challenges.

[0003] To ensure the normal temperature of the circulating water for crystallization, the spray heads need to be cleaned or replaced regularly. However, the cleaning work is extremely difficult. It requires the use of a crane to lift the fans off the cooling tower before it can be done. Moreover, the scale is stubborn and difficult to remove, which greatly increases the labor intensity of the workers, consumes a lot of time and energy, and seriously affects production efficiency and cost control. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a scale prevention device for spray heads in crystallization cooling towers. Developed specifically to solve the scale problem of spray heads, it effectively improves the scaling issue in crystallization cooling tower spray heads, reduces the cost of cleaning scale from spray heads, alleviates the workload of employees, and ensures a safe working environment for them.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a device for preventing scale buildup on spray heads of crystallization cooling towers, comprising an installation block; a cylinder is installed on the top of the installation block, a spray head is provided at the bottom of the installation block, a cavity is opened on the installation block, the spray head has a chamber, and the cavity and the chamber are connected to each other to form a receiving cavity for accommodating the scale removal head.

[0006] The cylinder rod extends into the receiving cavity, and the cylinder rod is connected to a pin that extends into the pin hole of the cleaning head.

[0007] A groove is provided around the outer circumference of the outer wall of the pin, and a retaining pin hole is provided on the cleaning head; when the pin is inserted into the pin hole, it enters through the retaining pin hole and is embedded in the groove, thereby restricting the up and down movement of the cleaning head relative to the pin; and the cleaning head can rotate relative to the pin.

[0008] The cavity has a water inlet connected to it on its side wall.

[0009] Further, the cylinder is capable of driving the cylinder rod to perform the extension and contraction movement, and further driving the scale-removing head to move in the vertical direction.

[0010] Further, the scale-removing head comprises the blade and the scale-removing cone head located below the blade, and the blade is distributed on the outer periphery of the connecting shaft, and the scale-removing cone head is connected to the bottom of the connecting shaft.

[0011] The pin shaft hole is arranged on the top of the connecting shaft, and the stop pin hole is located below the blade and on the outer wall of the connecting shaft, and the stop pin hole is in communication with the pin shaft hole.

[0012] Further, during the downward movement of the scale-removing head, the high-pressure water flow introduced through the water inlet impacts the blade, so that the blade performs the rotary movement, and simultaneously drives the scale-removing cone head to perform the downward movement and the rotation, thereby realizing the removal of the scale on the inner wall of the spray head.

[0013] Further, the spray head has the water outlet on the bottom, and the water outlet is located below the scale-removing cone head.

[0014] Further, the scale-removing cone head has the cylindrical sharp head extended from the bottom, and the cylindrical sharp head is capable of being inserted into the water outlet when the scale-removing cone head moves downward, so as to ensure the complete removal of the scale inside the water outlet.

[0015] Further, the water inlet is also used for introducing the cooling water into the spray head, and spraying the cooling water in the mist form through the water outlet to cool the crystallization circulating water.

[0016] Further, the outer contour of the scale-removing cone head is matched with the inner cavity contour of the spray head, so that when the scale-removing head is lowered to the lowest position, the scale-removing cone head is in contact with the inner cavity of the spray head, so as to scrape off the scale on the inner cavity wall.

[0017] Compared with the prior art, the utility model has the beneficial effects.

[0018] The spray head anti-scale device driven by the cylinder is capable of driving the scale-removing cone head of the scale-removing head to perform the upward and downward movement and the rotary movement through the water flow impact and the cylinder action, so as to effectively clean the scale in the inner cavity of the spray head at regular time, and realize the spray head without scale. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model makes further explanation in combination with the drawings and specific embodiment. The protection scope of the utility model is not limited to the following content.

[0020] Figure 1 It is a kind of crystallization cooling tower spray head anti-scale device water jet main view when working.

[0021] Figure 2 It is a kind of crystallization cooling tower spray head anti-scale device cleaning scale main view.

[0022] Figure 3 is Figure 2 a sectional view of A-A.

[0023] Figure 4 is a three-dimensional view of a pin shaft and a blocking pin cooperation of a crystallization cooling tower spray head anti-fouling device.

[0024] Figure 5 is a three-dimensional view of a scale removal head of a crystallization cooling tower spray head anti-fouling device.

[0025] In the figure, 1, mounting block; 2, air cylinder; 3, water inlet; 4, spray head; 5, water outlet; 6, air cylinder rod; 7, pin shaft; 8, groove; 9, scale removal head; 10, boss; 11, blocking pin; 12, crystallization circulating water; 13, cavity; 901, blade; 902, scale removal cone head; 903, cylindrical sharp head; 904, pin shaft hole; 905, blocking pin hole; 906, diagonal line. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and beneficial effects of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0027] As Figures 1-5 shown, the device for preventing scale deposition of a crystallization cooling tower spray head in the embodiments aims to prevent the crystallization cooling tower spray head from being affected in efficiency due to scale deposition. The device effectively removes scale by combining mechanical movement and water flow impact. It comprises a mounting block 1; the mounting block 1 is provided at the top with an air cylinder 2, and at the bottom with a spray head 4; a cavity 13 is formed in the mounting block 1 and communicates with the internal cavity of the spray head 4, forming a closed space containing the scale removal head 9, i.e. a containing cavity.

[0028] The air cylinder rod 6 of the air cylinder 2 extends into the containing cavity, and the air cylinder rod 6 is connected with a pin shaft 7 which extends into the pin shaft hole 904 of the scale removal head 9. A groove 8 is provided along the outer periphery of the outer wall of the pin shaft 7, and the scale removal head 9 is provided with a blocking pin hole 905; when the pin shaft 7 extends into the pin shaft hole 904, the blocking pin 11 enters the blocking pin hole 905 and is embedded into the groove 8, thereby limiting the up-and-down displacement of the scale removal head but allowing its rotation (i.e. the pin shaft can rotate relative to the pin shaft hole).

[0029] The cavity 13 side wall is provided with a water inlet 3 connected therewith, connected with a high-pressure water source. When the scale removing head 9 moves downward, the water flow introduced by the water inlet 3 impacts the structure (blade) on the scale removing head, causing it to rotate, enhancing the scale removal effect. At the same time, the water flow is sprayed out through the water outlet at the bottom end of the spray head 4, achieving the cooling function. Among them, the water inlet is arranged offset relative to the blade position, so that the water flow of the water inlet can laterally impact the blade to realize the rotation of the blade.

[0030] In the embodiment 1, when the air cylinder 2 works, the driving air cylinder rod 6 performs extension and retraction action, which directly leads to the vertical up and down movement of the scale removing head 9 connected with the air cylinder rod. In this way, the scale removing head 9 can reciprocate up and down inside the spray head, so as to facilitate the comprehensive cleaning of the inner wall of the spray head.

[0031] This mechanism ensures that the scale removing head 9 can reach different positions in the spray head, effectively removing accumulated scale and maintaining the efficient operation of the system.

[0032] In the embodiment 2, the scale removing head 9 is mainly composed of two parts: the blade 901 at the upper part and the scale removing cone 902 at the lower part. Specifically, the scale removing head 9 is connected with the driving mechanism through the pin shaft hole 904 at the top, which is arranged at the top end of the connecting shaft and used for receiving the pin shaft 7 at the end of the air cylinder rod 6, so as to ensure that the scale removing head can move up and down with the action of the air cylinder. In addition, the blocking pin hole 905 is arranged on the outer periphery of the connecting shaft below the blade 901, which is communicated with the pin shaft hole 904. When the pin shaft 7 is inserted into the pin shaft hole 904, the blocking pin 11 will pass through the blocking pin hole 905 and be embedded into the groove 8 of the pin shaft 7, so as to limit the up and down displacement of the scale removing head 9 along the pin shaft 7, while allowing it to rotate around the pin shaft.

[0033] This design not only ensures that the scale removing head 9 can stably move in the vertical direction, but also supports its rotational movement under the impact of water flow, thereby effectively enhancing the cleaning ability of the scale inside the spray head. The design of the blade 901 takes into account the principle of water flow dynamics, so that the incoming high-pressure water flow can be efficiently converted into rotational force, further improving the cleaning efficiency. The scale removing cone 902 is optimized for different shapes of spray head cavities, ensuring that it can fully fit the inner wall during the downward process, achieving a thorough cleaning effect.

[0034] During the downward movement of the scale removing head 9, the high-pressure water flow introduced by the water inlet 3 impacts the blade 901, causing the blade 901 to produce rotational movement, while driving the scale removing cone 902 to move downward and rotate, achieving the removal of scale inside the spray head. At the same time, the water inlet 3 is also used to introduce cooling water into the spray head, and the cooling water is sprayed out in the form of mist through the water outlet 5 to cool the crystallization circulating water.

[0035] The bottom of the spray head 4 is designed with a water outlet 5, which is located directly below the scale removal cone 902. This layout ensures that when the scale removal cone 902 moves downward for cleaning, it can directly act on the water outlet 5 and its surrounding area, effectively removing scale from these critical parts.

[0036] Moreover, the bottom of the scale removal cone 902 is specially extended with a cylindrical tip 903. This ensures that when the scale removal cone 902 performs downward movement, the cylindrical tip 903 can accurately insert into the water outlet 5. The width of the cylindrical tip is smaller than the width of the water outlet, so it does not affect the water flow. This docking method allows the scale removal cone to penetrate into the water outlet, thoroughly cleaning hard-to-reach areas and preventing scale accumulation from affecting water spray and cooling efficiency.

[0037] Through the combination of the scale removal cone 902 and the cylindrical tip 903, not only the cleaning ability of the water outlet 5 is enhanced, but also the long-term efficient operation of the spray system is maintained. After each cleaning operation, the water outlet remains unobstructed, ensuring that the cooling water can be evenly sprayed out to achieve the best cooling effect. In addition, this design helps to prolong the service life of the spray head 4 and reduce maintenance needs caused by scale blockage.

[0038] Preferably, the outer contour of the scale removal cone 902 is adapted to the inner cavity contour of the spray head 4, so that when the scale removal head 9 is lowered to the lowest position, the scale removal cone 902 contacts the inner cavity of the spray head 4 to scrape off scale on the inner cavity wall. The outer wall of the scale removal cone 902 is provided with a friction-increasing diagonal line for better scale removal effect.

[0039] The boss 10 and the blocking pin 11 on the inner wall of the spray head 4 correspond to the blocking pin hole 905 on the scale removal head 9, respectively, to limit the up and down movement range of the scale removal head 9. When the air cylinder 2 operates, the air cylinder rod 6 extends and pushes the scale removal cone 902 to move downward until the cylindrical tip 903 inserts into the water outlet 5. In this process, the high-pressure water entering through the water inlet 3 impacts the blade part 901, driving the blade to rotate.

[0040] The use process of the utility model is described in combination with the drawings and technical solutions:

[0041] 1. When the spray head is normally used to cool the crystallization circulating water, the cooling water enters from the water inlet, enters the inner wall cavity of the nozzle through the blade gap, and then is sprayed out from the water outlet. Due to the pressure of the water flow, it is sprayed out in a misty way to cool the crystallization circulating water.

[0042] 2、When the scale of the spray head needs to be cleaned, the cylinder is actuated, the cylinder rod is extended, the pin shaft is driven downward by the cylinder rod, the scale cleaning head is driven downward by the pin shaft, the scale cleaning head is composed of a blade part and a scale cleaning cone head, in the process of downward movement of the scale cleaning head, the high-pressure water of the water inlet impacts the blade part, so that the blade rotates relative to the pin shaft, the scale cleaning head is rotated by the blade in the process of downward movement, until the scale cleaning head drops to the lowest point position, the scale cleaning cone head contacts the inner cavity wall of the spray head, the cylindrical sharp head is inserted from the water outlet, in this process, the scale cleaning head breaks the scale on the inner cavity wall of the spray head to make the scale separate from the inner wall of the spray head, realizing the cleaning effect of the scale, the cylindrical sharp head realizes the cleaning effect of the scale on the water outlet.

[0043] 3、After the cleaning action is completed, the cylinder rod is retracted, driving the scale cleaning head to move upward to the highest point, completing the scale cleaning work of the spray head.

[0044] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "preferred embodiment", "specific embodiments", or "preferred embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced by equivalents; thus, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope defined by the claims of the present application.

Claims

1. A crystallization cooling tower spray head anti-fouling device, comprising a mounting block (1); characterized in that, The mounting block (1) top is provided with a cylinder (2), the mounting block (1) bottom is provided with a shower head (4), the mounting block (1) is provided with a cavity (13), the shower head (4) has a chamber, the cavity (13) is communicated with the chamber, and the cavity (13) and the chamber jointly constitute a containing cavity for containing a scale removing head (9); The cylinder rod (6) of the cylinder (2) extends into the containing cavity, and the cylinder rod (6) is connected with a pin shaft (7), and the pin shaft (7) extends into a pin shaft hole (904) of the scale removing head (9); The outer wall of the pin shaft (7) is provided with a groove (8) along the outer periphery, and the scale removing head (9) is provided with a pin blocking hole (905); when the pin shaft (7) extends into the pin shaft hole (904), the pin blocking hole (905) is inserted into the groove (8) through the pin blocking hole (905), so as to limit the up-down movement of the scale removing head relative to the pin shaft; and the scale removing head (9) can rotate relative to the pin shaft; The side wall of the cavity (13) is provided with a water inlet (3) communicated therewith.

2. The crystallization cooling tower showerhead anti-fouling device of claim 1, wherein, When the cylinder (2) acts, the cylinder rod (6) can be driven to perform telescopic movement, and then drive the scale removing head (9) to move in the vertical direction.

3. The crystallization cooling tower showerhead anti-fouling device of claim 1, wherein, The scale removing head (9) comprises blades (901) and a scale removing cone head (902) below the blades (901), and the blades are distributed on the outer periphery of a connecting shaft, and the scale removing cone head (902) is connected to the bottom of the connecting shaft. The pin shaft hole (904) is arranged on the top of the connecting shaft, and the pin blocking hole (905) is arranged below the blades and on the outer wall of the connecting shaft, and the pin blocking hole (905) is communicated with the pin shaft hole (904).

4. The crystallization cooling tower showerhead anti-fouling device of claim 3, wherein, During the downward movement of the scale removing head (9), the high-pressure water flow introduced by the water inlet (3) impacts the blades (901), so that the blades (901) produce rotary movement, and at the same time drive the scale removing cone head (902) to move downward and rotate, so as to remove the scale in the inner wall of the shower head.

5. The crystallization cooling tower showerhead anti-fouling device of claim 1, wherein, The bottom of the shower head (4) is provided with a water outlet (5), and the water outlet (5) is located below the scale removing cone head (902).

6. The crystallization cooling tower showerhead anti-fouling device of claim 5, wherein, The bottom of the scale removing cone head (902) extends a cylindrical sharp head (903), and the cylindrical sharp head (903) can be inserted into the water outlet (5) when the scale removing cone head (902) moves downward, so as to ensure that the scale in the water outlet is thoroughly cleaned.

7. The crystallization cooling tower showerhead anti-fouling device of claim 1, wherein, The width of the cylindrical sharp head (903) is smaller than the width of the water outlet (5).

8. The crystallization cooling tower showerhead anti-fouling device of claim 6, wherein, The water inlet (3) is also used for introducing cooling water into the shower head, and spraying out in the form of mist through the water outlet (5) to cool the crystallization circulating water.

9. The crystallization cooling tower showerhead anti-fouling device of claim 8, wherein, The outer contour of the scale removing cone head (902) is matched with the inner cavity contour of the shower head (4), so that when the scale removing head (9) descends to the lowest position, the scale removing cone head (902) is in contact with the inner cavity of the shower head (4), so as to scrape off the scale on the inner cavity wall.

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