Circulating water softening device

Abstract

The utility model provides a circulating water softening device and belongs to the technical field of water treatment. Comprising a clarification tank, a water falling well is arranged in the clarification tank, a mixing tank is arranged at the position, aligned with the water falling well, above the clarification tank, a water adding pipe used for injecting water into the mixing tank is arranged on the side wall of the mixing tank, and a feeding tank used for injecting lime into the mixing tank is arranged at the top end of the mixing tank. A propeller for mixing water and lime is rotationally mounted in the mixing tank. According to the utility model, lime is added and mixed while circulating water is injected into the clarification tank, so that the lime is uniformly dispersed in the circulating water, and the softening efficiency and the softening effect of the circulating water are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, and particularly relates to a circulating water softening device. Background Art

[0002] Circulating water refers to the water resource that can be reused after reaching a certain water quality standard through a series of treatment processes. In industrial production, after the cooling water absorbs heat through a heat exchanger, its temperature rises, and then it enters a cooling tower or a cooling pond for temperature reduction treatment. The cooled water then enters the heat exchanger again for recycling, which is also called circulating cooling water. The circulating water system realizes the recycling of water, greatly reduces the consumption of fresh water, and reduces the consumption of water resources. At the same time, through the reuse of the treated water, the discharge of sewage is reduced, which is beneficial to environmental protection.

[0003] Due to the minerals contained in the circulating water, especially calcium and magnesium ions, under the conditions of high temperature and high concentration ratio, they are prone to combine with anions such as carbonates, sulfates, and silicates in the water to form insoluble water scales. The water scales deposited on the heat transfer surface will greatly reduce the heat exchange efficiency, increase energy consumption, and even block the pipeline, affecting the normal operation of the equipment. Therefore, it is very necessary to soften the circulating water. The traditional method for softening circulating water usually adopts adding appropriate lime to make calcium bicarbonate in the water react with lime in a clarifying tank in advance to form calcium carbonate precipitate and precipitate out, so as to remove Ca² + in the water. However, when the lime is directly put into the circulating water tank, there is a problem that the lime is difficult to be quickly and evenly dispersed in the circulating water, which affects the softening efficiency and softening effect of the circulating water. In view of this, the present application provides a circulating water softening device to meet the requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a circulating water softening device to solve the problem that when the existing circulating water is softened, the lime is directly put into the circulating water tank, and the lime is difficult to be quickly and evenly dispersed in the circulating water, which affects the softening efficiency and softening effect of the circulating water.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] A circulating water softening device includes a clarifying tank. A drop well is arranged in the clarifying tank. A mixing tank is arranged at a position above the clarifying tank and aligned with the drop well. A water adding pipe for injecting water into the mixing tank is arranged on the side wall of the mixing tank. A feeding tank for adding lime into the mixing tank is arranged at the top end of the mixing tank. A propeller for mixing water and lime is rotatably installed in the mixing tank.

[0007] Optionally, the bottom end of the mixing tank is arranged in a conical structure and is vertically connected with a downcomer, and the bottom end of the downcomer extends to the top end of the catch pit.

[0008] Optionally, one end of the water supply pipe extending into the mixing tank is bent downward and aligned with the blades of the propeller.

[0009] Optionally, the bottom end of the feeding tank is connected with a feeding pipe extending into the mixing tank, and an anti-blocking mechanism for preventing lime caking and blocking is arranged in the feeding tank.

[0010] Optionally, the bottom end of the feeding pipe extends to the propeller and is bent and inclined towards the blades of the propeller.

[0011] Optionally, the inner bottom end of the feeding tank is in a conical structure. The anti-blocking mechanism includes a shaft rod rotatably installed in the feeding tank and a grinding hammer coaxially fixed at the bottom end of the shaft rod. The grinding hammer is adapted to the conical structure at the inner bottom of the feeding tank, and a motor for driving the shaft rod to rotate is installed at the top end of the feeding tank.

[0012] Optionally, a dial rod is radially fixed on the side wall of the shaft rod, and a plurality of dial rods are distributed in a staggered manner.

[0013] Optionally, a cover plate is arranged at the top end of the mixing tank, and the feeding tank is integrally connected with the cover plate.

[0014] Optionally, the middle of the top of the propeller protrudes upward in a spherical shape, and a bracket is rotatably assembled at the bottom of the propeller, and the bracket is fixed in the mixing tank.

[0015] Optionally, a workbench is erected on the top of the clarification tank, the mixing tank is fixed on the workbench, the downcomer penetrates through the workbench, guardrails are arranged on both sides of the top of the workbench, and a drain pipe and a conduction pipe are respectively arranged at the top and bottom of the side wall of the clarification tank.

[0016] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0017] In the above solution, by arranging a feeding tank and a water supply pipe on the mixing tank, circulating water is injected from the water supply pipe. Broken lime powder is loaded into the feeding tank, and the lime powder is discharged into the mixing tank along the feeding pipe, and together with the circulating water injected into the mixing tank, it falls into the catch pit through the downcomer and finally flows into the clarification tank for clarification. By adding lime to the circulating water, calcium bicarbonate in the circulating water reacts with lime in advance in the clarification tank to generate calcium carbonate, which precipitates and separates out in the clarification tank, removing Ca² + Thus, the purpose of softening the circulating water is achieved, reducing equipment failures, maintenance costs, energy consumption, and downtime losses caused by scale formation and corrosion of the circulating water. And by adding lime while injecting the circulating water into the clarification tank, it is beneficial to the uniform dispersion of lime in the circulating water and improves the softening efficiency.

[0018] Through the setting of the propeller, after the circulating water is injected into the mixing tank through the water supply pipe, under the impact of the water, the propeller rotates, whereby the lime falling into the mixing tank can be premixed with the circulating water under the rotation of the propeller, improving the softening effect of the lime on the circulating water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0020] Figure 1 is a schematic three-dimensional structure diagram of the circulating water softening device;

[0021] Figure 2 is a schematic three-dimensional structure diagram of the mixing tank and the feeding tank of the circulating water softening device;

[0022] Figure 3 is a schematic internal structure diagram of the mixing tank and the feeding tank;

[0023] Figure 4 is a schematic internal structure diagram of the feeding tank;

[0024] Figure 5 is a schematic structure diagram of the propeller.

[0025] [Reference Numerals]

[0026] 1, clarifying tank; 2, drop well; 3, workbench; 4, guardrail; 5, mixing tank; 6, feeding tank; 7, water supply pipe; 8, drain pipe; 9, conduction pipe; 10, cover plate; 11, downcomer; 12, propeller; 13, feeding pipe; 14, anti-blocking mechanism; 15, shaft rod; 16, grinding hammer; 17, lever; 18, motor; 19, bracket.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will combine the accompanying drawings and specific embodiments to describe in detail a circulating water softening device provided by the present utility model. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the drawing part is only for more specifically describing the embodiments, and is not intended to specifically limit the present utility model.

[0029] It should be noted that in the specification, references to "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe a specific feature, structure, or characteristic, implementing such feature, structure, or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0030] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather can alternatively, at least in part depending on the context, allow for the existence of other factors that are not necessarily explicitly described.

[0031] It can be understood that the meanings of "on...", "above...", and "over..." in the present utility model should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0032] In addition, spatial relative terms such as "under...", "below...", "lower", "above...", "upper", etc. are used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. Spatial relative terms are intended to cover different orientations in the use or operation of the device other than the orientation depicted in the drawings. The device can be oriented in other ways, and the spatial relative descriptive terms used herein can be similarly interpreted accordingly.

[0033] As Figures 1 to 3As shown in the figure, an embodiment of the present utility model provides a circulating water softening device, including a clarification tank 1. A catch well 2 is arranged inside the clarification tank 1. A mixing tank 5 is arranged at a position above the clarification tank 1 and aligned with the catch well 2. A water addition pipe 7 for injecting water into the mixing tank 5 is arranged on the side wall of the mixing tank 5. A feeding tank 6 for injecting lime into the mixing tank 5 is arranged at the top of the mixing tank 5. The circulating water is injected through the water addition pipe 7. After the crushed lime powder is loaded into the feeding tank 6, the lime powder is discharged into the mixing tank 5 along the guide pipe 13, and together with the circulating water injected into the mixing tank 5, it falls into the catch well 2 through the down pipe 11, and finally flows into the clarification tank 1 for clarification. By adding lime to the circulating water, calcium bicarbonate in the circulating water reacts with the lime in the clarification tank 1 in advance, and calcium carbonate is precipitated and separated out in the clarification tank 1 to remove Ca² in the circulating water. + Thereby achieving the purpose of softening the circulating water, reducing equipment failures, maintenance costs, energy consumption, and shutdown losses caused by scaling and corrosion of the circulating water. Adding lime while the circulating water is injected into the clarification tank 1 is beneficial to the uniform dispersion of lime in the circulating water and improves the softening efficiency.

[0034] As Figures 1 to 3 shown, a propeller 12 for mixing water and lime is rotatably installed inside the mixing tank 5. The end of the water addition pipe 7 extending into the mixing tank 5 bends downward and is aligned with the blade of the propeller 12. The bottom end of the feeding tank 6 is connected with a guide pipe 13 extending into the mixing tank 5. The bottom end of the guide pipe 13 extends to the propeller 12 and bends and inclines towards the blade of the propeller 12. After the circulating water is injected into the mixing tank 5 through the water addition pipe 7, under the impact of water, the propeller 12 rotates, so that the lime falling into the mixing tank 5 can be pre-mixed with the circulating water under the rotation of the propeller 12, improving the softening effect of lime on the circulating water.

[0035] As Figure 1 、 Figure 3 and Figure 5 shown, the bottom end of the mixing tank 5 is arranged in a conical structure and is vertically connected with a down pipe 11. The bottom end of the down pipe 11 extends to the top end of the catch well 2, which is beneficial for the mixed circulating water and lime to fall into the catch well 2. A bracket 19 is rotatably assembled at the bottom of the propeller 12, and the bracket 19 is fixed inside the mixing tank 5. The middle of the top of the propeller 12 protrudes upward in a spherical shape. A workbench 3 is erected on the top of the clarification tank 1. The mixing tank 5 is fixed on the workbench 3. The down pipe 11 penetrates through the workbench 3. Guardrails 4 are arranged on both sides of the top of the workbench 3. Drain pipes 8 and conduction pipes 9 are respectively arranged at the top and bottom of the side wall of the clarification tank 1.

[0036] As Figures 2 to 4As shown, an anti-blocking mechanism 14 for preventing lime caking and blockage is provided inside the feeding tank 6. The bottom end inside the feeding tank 6 is of a conical structure. The anti-blocking mechanism 14 includes a shaft rod 15 rotatably installed inside the feeding tank 6 and a grinding hammer 16 coaxially fixed to the bottom end of the shaft rod 15. The grinding hammer 16 is adapted to the conical structure at the inner bottom of the feeding tank 6. A motor 18 for driving the rotation of the shaft rod 15 is installed at the top end of the feeding tank 6. As Figure 1 , Figure 3 and Figure 5 shown; radially fixed on the side wall of the shaft rod 15 are a plurality of shifting rods 17, and the multiple shifting rods 17 distributed in a staggered manner on the shaft rod 15 can stir the lime inside the feeding tank 6, improving the fluidity of the lime and facilitating the smooth discharge of the lime from the guide pipe 13. A cover plate 10 is provided at the top end of the mixing tank 5, and the feeding tank 6 is integrally connected to the cover plate 10, which is conducive to the assembly of the feeding tank 6.

[0037] The working principle of the technical solution provided by the present utility model is as follows:

[0038] During use, circulating water is injected through the water inlet pipe 7. After crushing, lime powder is loaded into the feeding tank 6, and the lime powder is discharged into the mixing tank 5 along the guide pipe 13, and together with the circulating water injected into the mixing tank 5, it falls into the catch pit 2 through the down pipe 11 and finally flows into the clarification tank 1 for clarification. By adding lime to the circulating water, calcium bicarbonate in the circulating water reacts with the lime in advance in the clarification tank 1 to generate calcium carbonate, which precipitates and separates out in the clarification tank 1, removing Ca² + in the circulating water, thereby achieving the purpose of softening the circulating water and reducing equipment failures, maintenance costs, energy consumption, and downtime losses caused by scaling and corrosion of the circulating water. Further, after the circulating water is injected into the mixing tank 5 through the water inlet pipe 7, under the impact of the water, the propeller 12 rotates, and thus the lime falling into the mixing tank 5 can be pre-mixed with the circulating water under the rotation of the propeller 12, improving the softening effect of the lime on the circulating water. Further, in addition, the multiple shifting rods 17 distributed in a staggered manner on the shaft rod 15 can stir the lime inside the feeding tank 6, improving the fluidity of the lime and facilitating the smooth discharge of the lime from the guide pipe 13.

[0039] The present utility model covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present utility model. In order to enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the following preferred embodiments of the present utility model, but those skilled in the art can fully understand the present utility model without these detailed descriptions. In addition, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present utility model.

[0040] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A circulating water softening device, including a clarification tank, wherein a water inlet well is arranged in the clarification tank, and it is characterized in that: A mixing tank is arranged at a position above the clarification tank and aligned with the water inlet well. A water adding pipe for injecting water into the mixing tank is arranged on the side wall of the mixing tank. A feeding tank for adding lime into the mixing tank is arranged at the top end of the mixing tank. A propeller for mixing water and lime is rotatably installed in the mixing tank.

2. The circulating water softening device according to claim 1, characterized in that, The bottom end of the mixing tank is arranged in a conical structure and is vertically communicated with a downcomer. The bottom end of the downcomer extends to the top end of the water inlet well.

3. The circulating water softening device according to claim 1, characterized in that, One end of the water adding pipe extending into the mixing tank is bent downward and aligned with the blade of the propeller.

4. The circulating water softening device according to claim 1, characterized in that The bottom end of the feeding tank is connected with a guide pipe extending into the mixing tank. An anti-blocking mechanism for preventing lime caking and blocking is arranged in the feeding tank.

5. The circulating water softening device according to claim 4, characterized in that, The bottom end of the guide pipe extends to the propeller and is bent and inclined towards the blade of the propeller.

6. The circulating water softening device according to claim 4, characterized in that, The inner bottom end of the feeding tank is in a conical structure. The anti-blocking mechanism includes a shaft rod rotatably installed in the feeding tank and a grinding hammer coaxially fixed at the bottom end of the shaft rod. The grinding hammer is adapted to the conical structure at the inner bottom of the feeding tank. A motor for driving the shaft rod to rotate is installed at the top end of the feeding tank.

7. The circulating water softening device according to claim 6, characterized in that, A dial rod is radially fixed on the side wall of the shaft rod, and a plurality of dial rods are distributed in a staggered manner.

8. The circulating water softening device according to claim 1, characterized in that, A cover plate is arranged at the top end of the mixing tank, and the feeding tank is integrally connected with the cover plate.

9. The circulating water softening device according to claim 1, characterized in that The middle of the top of the propeller protrudes upward in a spherical shape. A bracket is rotatably assembled at the bottom of the propeller, and the bracket is fixed in the mixing tank.

10. The circulating water softening device according to claim 2, characterized in that, A workbench is erected on the top of the clarification tank. The mixing tank is fixed on the workbench. The downcomer penetrates through the workbench. Guardrails are arranged on both sides of the top of the workbench. Drain pipes and conduction pipes are respectively arranged at the top and bottom of the side wall of the clarification tank.

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