A circulating water softening device

Abstract

The utility model provides a kind of circulating water hardness removal device, including sediment tank, sediment treatment tank and circulating water storage tank, sediment tank top is equipped with water inlet and dosing port, stirring mechanism is equipped in sediment tank, sediment tank is communicated with sediment treatment tank by main pipeline, one end of first drain pipe is communicated with the side of main pipeline, the other end of first drain pipe is connected filtering mechanism input end, filtering mechanism output end is connected with one end of second drain pipe, the other end of second drain pipe is communicated with the circulating water storage tank by water pump, one end of third drain pipe is communicated with the side of sediment treatment tank, and the other end is communicated with first drain pipe, filter screen structure is equipped in the communicating place of sediment treatment tank and third drain pipe, and sediment extrusion mechanism is equipped in tank.The utility model can realize the discharge of sediment and circulating water respectively, avoid that filtering mechanism is blocked, and sediment can be collected in sediment treatment tank, just need to take out sediment in sediment treatment tank, and sediment is cleaned conveniently.

Description

Technical Field

[0001] This utility model relates to the field of water hardening technology, specifically to a circulating water hardening device. Background Technology

[0002] Hardness removal in circulating water is a core treatment step for the stable operation of industrial circulating water systems (such as cooling water systems and process water circulation systems). The purpose of hardness removal is to prevent system failures, increased energy consumption, and safety risks caused by excessive hardness. For example, when the amount of insoluble precipitates in the circulating water is too high, they will adhere to the inner walls of heat exchangers and pipes, forming scale, which leads to reduced heat transfer efficiency of heat exchangers, corrosion of pipes, and shortens equipment lifespan. Therefore, hardness removal in circulating water is crucial. In circulating water systems, hardness mainly originates from calcium and magnesium ions. These ions combine with carbonate and sulfate ions in the water to form scale (such as calcium carbonate and magnesium sulfate). By adding chemical agents, calcium and magnesium ions form insoluble precipitates, which are then separated from the water. This is the most common method for hardness removal in industrial circulating water.

[0003] Current methods for hardening circulating water systems often require the precipitation of insoluble substances in a sedimentation tank. After sedimentation, the initial hardening removal is complete, and the circulating water in the sedimentation tank is then discharged and collected. To avoid residual sediment in the circulating water, filtration is required during or after discharge. However, when there is a large amount of sediment, it can easily become mixed with the discharged circulating water, potentially clogging the filtration equipment and affecting its efficiency, lifespan, and hardening removal effect. Furthermore, cleaning the sediment in current sedimentation tanks is inconvenient, requiring regular manual cleaning, which is quite cumbersome. Therefore, a circulating water hardening removal device is needed that facilitates the separation of sediment and circulating water, reduces the possibility of filtration clogging, and is easy to clean. Utility Model Content

[0004] To address the problems in the background technology, this utility model proposes a circulating water hardening removal device, including a sedimentation tank, a sediment treatment tank, and a circulating water storage tank. The sedimentation tank has a water inlet and a chemical dosing inlet at its top, and a stirring mechanism inside the sedimentation tank. The sediment treatment tank is located below the sedimentation tank, and the bottom of the sedimentation tank is connected to the top of the sediment treatment tank via a main pipe. The main pipe connects the sedimentation tank and the sediment treatment tank. One end of the main pipe is connected to a first drain pipe, and the other end of the first drain pipe is connected to the input end of a filter mechanism. The output end of the filter mechanism is connected to one end of a second drain pipe, and the other end of the second drain pipe is connected to the circulating water storage tank via a water pump. One end of the sediment treatment tank is connected to a third drain pipe, and the other end of the third drain pipe is connected to the first drain pipe. A filter screen structure is provided at the connection between the sediment treatment tank and the third drain pipe. The sediment treatment tank is equipped with a squeezing mechanism for squeezing sediment.

[0005] Preferably, the sediment treatment box includes a box body and a pull-out box. One end of the pull-out box is slidably disposed in the box body, and the other end of the pull-out box is detachably connected to the box body. The pull-out box is a box body structure with an open top, and the side of the pull-out box near the third drain pipe is a filter screen structure.

[0006] Preferably, the extrusion mechanism includes an extrusion plate and a cylinder. The pull-out box has an opening on one side inside the box. The extrusion plate is slidably disposed inside the pull-out box. The cylinder is fixed to the outer wall of the box near the opening on the side of the pull-out box. The telescopic end of the cylinder slides through the box and extends into the box, and is fixedly connected to the extrusion plate.

[0007] Preferably, a first valve and a second valve for closing / opening the main pipeline are respectively provided between the sedimentation tank and the first drain pipe, and on the main pipeline between the first drain pipe and the sediment treatment tank.

[0008] Preferably, the filtration mechanism includes a housing and a filter plate. The opposite sides of the housing are respectively connected to a first drain pipe and a second drain pipe. The filter plate is inserted into the housing and includes a bottom plate and a side plate. The side plate is fixed to one side of the top of the bottom plate and has a plurality of first filter holes. The side plate covers the connection port between the second drain pipe and the housing.

[0009] Preferably, the housing has an opening at the top, the filter plate is inserted into the housing through the opening at the top, and a cover plate is fixed to the top of the side plate, the cover plate covering the opening at the top of the housing.

[0010] Preferably, the sedimentation tank is provided with a top cover, and the dosing port and water inlet are located on the top of the top cover.

[0011] Preferably, the stirring mechanism includes a drive motor, a stirring shaft, and stirring blades. The stirring shaft is located inside the sedimentation tank. The drive motor is fixed to the top of the upper cover. The output shaft of the drive motor extends through the upper cover into the sedimentation tank and is fixedly connected to one end of the stirring shaft. The other end of the stirring shaft extends downward to the bottom of the sedimentation tank. There are multiple stirring blades, which are evenly distributed on the outer periphery of the stirring shaft and fixedly connected to the stirring shaft.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, circulating water undergoes sedimentation and hardening removal in a sedimentation tank. After sedimentation, the sediment is located at the bottom of the sedimentation tank. When separating the circulating water and sediment, the sediment first falls from the main pipe at the bottom of the sedimentation tank into the sediment treatment tank. At this time, the sediment contains water, and the squeezing mechanism can squeeze the sediment to expel the water. After the sediment falls out of the sedimentation tank, the water pump transports the circulating water in the sedimentation tank to the circulating water storage tank. During the transportation process, the circulating water passes through a filtration mechanism to filter the circulating water, preventing it from being mixed with floating sediment and ensuring the cleanliness of the circulating water. The treated circulating water is temporarily stored in the circulating water storage tank. At the same time, when the water pump starts, the squeezed water is discharged from the sediment treatment tank through the third drain pipe and then filtered by the filtration mechanism before entering the circulating water storage tank.

[0014] This invention enables the separate discharge of sediment and circulating water, avoiding clogging of the filter mechanism due to excessive sediment. At the same time, the sediment can be collected in the sediment treatment tank, and only needs to be removed from the sediment treatment tank periodically. Sediment cleaning is convenient and greatly reduces the need for cleaning the sediment tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the internal structure of the sedimentation tank and sediment treatment tank of this utility model; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0016] Numbered in the diagram: 1. Sedimentation tank; 2. Sediment treatment tank; 3. Main pipe; 4. First drain pipe; 5. Second drain pipe; 6. Third drain pipe; 7. Circulating water storage tank; 8. Water pump; 9. Filtration mechanism; 10. Shell; 11. Cover plate; 12. Side plate; 13. Bottom plate; 14. Pull-out box; 15. Box body; 16. Cylinder; 17. Extrusion plate; 18. Drive motor; 19. Stirring shaft; 20. Stirring blade; 21. First filter hole; 22. Water inlet; 23. Chemical inlet; 24. Top cover. Detailed Implementation

[0017] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0018] In this article, terms such as "inner," "outer," "upper," and "lower" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0019] Combined with appendix Figure 1 - Appendix Figure 3 A circulating water hardening removal device includes a sedimentation tank 1, a sediment treatment tank 2, and a circulating water storage tank 7. The sedimentation tank 1 is provided with a water inlet 22 and a chemical dosing inlet 23 at the top. Circulating water to be hardened is injected into the sedimentation tank 1 through the water inlet 22, and hardening removal agent is added into the sedimentation tank 1 through the chemical dosing inlet 23. The sedimentation tank 1 is provided with a stirring mechanism, which mixes the agent and the circulating water to accelerate the hardening removal reaction.

[0020] The sediment treatment tank 2 is located below the sedimentation tank 1. The bottom of the sedimentation tank 1 is connected to the top of the sediment treatment tank 2 via a main pipe 3. The main pipe 3 connects the sedimentation tank 1 and the sediment treatment tank 2. Sediment can fall into the sediment treatment tank 2 under gravity. One side of the main pipe 3 is connected to one end of the first drain pipe 4. The other end of the first drain pipe 4 is connected to the input end of the filter mechanism 9. The output end of the filter mechanism 9 is connected to one end of the second drain pipe 5. The other end of the second drain pipe 5 is connected to the circulating water storage tank 7 via a water pump 8. One side of the sediment treatment tank 2 is connected to one end of the third drain pipe 6. The other end of the third drain pipe 6 is connected to the first drain pipe 4. A filter screen structure is provided at the connection between the sediment treatment tank 2 and the third drain pipe 6. The sediment treatment tank 2 is equipped with a squeezing mechanism for squeezing sediment.

[0021] Specifically, the sediment treatment tank 2 includes a tank body 15 and a pull-out box 14. One end of the pull-out box 14 is slidably disposed inside the tank body 15, and the other end of the pull-out box 14 is detachably connected to the tank body 15. The pull-out box 14 has a top-opening structure. The side of the pull-out box 14 near the third drain pipe 6 has a filter screen structure, that is, multiple filter holes are provided on the side of the pull-out box 14 near the third drain pipe 6 to prevent sediment from entering the third drain pipe 6 with the water, thus performing preliminary filtration of the water discharged from the sediment treatment tank 2. When sediment falls into the sediment treatment tank 2, it falls into the pull-out box 14 through the top opening. Sediment squeezed out of water is also located in the pull-out box 14. When it is necessary to clean the sediment, the pull-out box 14 is pulled out from the tank body 15, and the sediment can be removed.

[0022] More specifically, the squeezing mechanism includes a squeezing plate 17 and a cylinder 16. The pull-out box 14 has an opening on one side inside the housing 15. The squeezing plate 17 is slidably disposed inside the pull-out box 14. The cylinder 16 is fixed to the outer wall of the housing 15 near the side opening of the pull-out box 14. The telescopic end of the cylinder 16 slides through the housing 15 and extends into the housing 15, where it is fixedly connected to the squeezing plate 17. When it is necessary to squeeze the sediment, one end of the pull-out box 14 must be connected to the housing 15 to prevent the pull-out box 14 from being pushed out of the housing 15 by the squeezing plate 17. The cylinder 16 extends and retracts, driving the squeezing plate 17 to move, so that the sediment is squeezed between the squeezing plate 17 and the side wall of the pull-out box 14. More specifically, the detachable connection between the pull-out box 14 and the housing 15 can be achieved by bolt connection. For example, bolt holes are fixed on the housing 15, and ear plates are fixed on the pull-out box 14. The ear plates have through holes corresponding to the bolt holes. When connecting, the threaded end of the bolt is passed through the through hole and screwed into the bolt hole to tighten. When disassembly is required, the bolt is unscrewed from the bolt hole.

[0023] Specifically, a first valve and a second valve are respectively provided between the sedimentation tank 1 and the first drain pipe 4, and on the main pipe 3 between the first drain pipe 4 and the sediment treatment tank 2, for closing / opening the main pipe 3. When the circulating water in the sedimentation tank 1 is settling, the first valve closes the main pipe 3 to prevent water from being discharged from the sedimentation tank 1; when it is necessary to discharge the sediment first, the first valve and the second valve are opened; after the sediment is discharged, when it is necessary to discharge the circulating water, the second valve is closed, connecting only the first drain pipe 4 and the sedimentation tank 1.

[0024] Specifically, the filtration mechanism 9 includes a housing 10 and a filter plate. The housing 10 has two opposite sides connected to a first drain pipe 4 and a second drain pipe 5, respectively. The filter plate is inserted into the housing 10 and includes a bottom plate 13 and a side plate 12. The side plate 12 is fixed to one side of the top of the bottom plate 13 and has multiple first filter holes 21. The side plate 12 covers the connection port between the second drain pipe 5 and the housing 10. Circulating water is filtered through the side plate 12 with the first filter holes 21 before entering the circulating water storage tank 7, ensuring the cleanliness of the circulating water. The filtered impurities or sediments remain on the bottom plate 13 and can be cleaned by removing the filter plate from the housing 10.

[0025] More specifically, the housing 10 has an opening at the top, and the filter plate is inserted into the housing 10 through the opening at the top. A cover plate 11 is fixed to the top of the side plate 12, and the cover plate 11 covers the opening at the top of the housing 10. Under normal use, the housing 10 is closed by the cover plate 11. When it is necessary to clean or replace the filter plate, the filter plate can be pulled out from the housing 10 by lifting the cover plate 11.

[0026] Specifically, the sedimentation tank 1 is movably equipped with a top cover 24, and the chemical dosing port 23 and the water dosing port 22 are located on top of the top cover 24. The top cover 24 facilitates opening the sedimentation tank 1, thereby facilitating maintenance of the interior of the sedimentation tank 1.

[0027] Specifically, the stirring mechanism includes a drive motor 18, a stirring shaft 19, and stirring blades 20. The stirring shaft 19 is located inside the sedimentation tank 1. The drive motor 18 is fixed to the top of a cover 24. The output shaft of the drive motor 18 extends through the cover 24 into the sedimentation tank 1 and is fixedly connected to one end of the stirring shaft 19. The other end of the stirring shaft 19 extends downward to the bottom of the sedimentation tank 1. There are multiple stirring blades 20, which are evenly distributed on the outer periphery of the stirring shaft 19 and fixedly connected to it. The drive motor 18 drives the stirring shaft 19 and the stirring blades 20 to rotate, thus performing a stirring action.

[0028] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations 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 circulating water hardening device, comprising a sedimentation tank (1), a sediment treatment tank (2), and a circulating water storage tank (7), wherein the sedimentation tank (1) is provided with a water inlet (22) and a chemical dosing inlet (23) at the top, and a stirring mechanism is provided inside the sedimentation tank (1), characterized in that: The sediment treatment tank (2) is located below the sedimentation tank (1). The bottom of the sedimentation tank (1) is connected to the top of the sediment treatment tank (2) through the main pipe (3). The main pipe (3) connects the sedimentation tank (1) and the sediment treatment tank (2). One side of the main pipe (3) is connected to one end of the first drain pipe (4). The other end of the first drain pipe (4) is connected to the input end of the filter mechanism (9). The output end of the filter mechanism (9) is connected to one end of the second drain pipe (5). The other end of the second drain pipe (5) is connected to the circulating water storage tank (7) through the water pump (8). One side of the sediment treatment tank (2) is connected to one end of the third drain pipe (6). The other end of the third drain pipe (6) is connected to the first drain pipe (4). A filter screen structure is provided at the connection between the sediment treatment tank (2) and the third drain pipe (6). A squeezing mechanism for squeezing sediment is provided inside the sediment treatment tank (2).

2. The circulating water hardening device according to claim 1, characterized in that: The sediment treatment box (2) includes a box body (15) and a pull-out box (14). One end of the pull-out box (14) is slidably disposed inside the box body (15), and the other end of the pull-out box (14) is detachably connected to the box body (15). The pull-out box (14) is a box structure with an open top, and the side of the pull-out box (14) near the third drain pipe (6) is a filter screen structure.

3. The circulating water hardening device according to claim 2, characterized in that: The extrusion mechanism includes an extrusion plate (17) and a cylinder (16). The pull-out box (14) has an opening on one side inside the box body (15). The extrusion plate (17) is slidably disposed inside the pull-out box (14). The cylinder (16) is fixed on the outer wall of the box body (15) near the opening on the side of the pull-out box (14). The telescopic end of the cylinder (16) slides through the box body (15) and extends into the box body (15), and is fixedly connected to the extrusion plate (17).

4. The circulating water hardening device according to claim 1, characterized in that: The sedimentation tank (1) and the first drain pipe (4) are respectively provided with a first valve and a second valve for closing / opening the main pipe (3) between the first drain pipe (4) and the sediment treatment tank (2).

5. The circulating water hardening device according to claim 1, characterized in that: The filtration mechanism (9) includes a housing (10) and a filter plate. The two opposite sides of the housing (10) are connected to the first drain pipe (4) and the second drain pipe (5) respectively. The filter plate is inserted into the housing (10). The filter plate includes a bottom plate (13) and a side plate (12). The side plate (12) is fixed to one side of the top of the bottom plate (13). The side plate (12) is provided with a plurality of first filter holes (21). The side plate (12) covers the connection port between the second drain pipe (5) and the housing (10).

6. The circulating water hardening device according to claim 5, characterized in that: The top of the housing (10) is open, and the filter plate is inserted into the housing (10) through the top opening of the housing (10). The top of the side plate (12) is fixed with a cover plate (11), which covers the top opening of the housing (10).

7. The circulating water hardening device according to claim 1, characterized in that: The sedimentation tank (1) is movably provided with a top cover (24), and the dosing port (23) and water inlet (22) are located on the top of the top cover (24).

8. A circulating water hardening device according to claim 7, characterized in that: The stirring mechanism includes a drive motor (18), a stirring shaft (19), and stirring blades (20). The stirring shaft (19) is located inside the sedimentation tank (1). The drive motor (18) is fixed to the top of the cover (24). The output shaft of the drive motor (18) passes through the cover (24) and extends into the sedimentation tank (1) and is fixedly connected to one end of the stirring shaft (19). The other end of the stirring shaft (19) extends downward to the bottom of the sedimentation tank (1). There are multiple stirring blades (20). The multiple stirring blades (20) are evenly distributed on the outer periphery of the stirring shaft (19) and are fixedly connected to the stirring shaft (19).

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