Deep dechlorination desalination system for sea sand

Abstract

A deep dechlorination desalination system for sea sand relates to the technical field of sea sand desalination equipment, and comprises: a mechanical sand washing device, the mechanical sand washing device comprises a cleaning water bucket and a mechanical rotary cleaning module arranged in the cleaning water bucket; the ozone device comprises an ozone generating unit and a micro-nano bubble generating unit which are used for cooperatively generating micro-nano bubbles; the micro-nano bubble release units are used for releasing micro-nano bubbles into the cleaning water bucket, and the ozone concentration detection unit is used for detecting the concentration of ozone in the cleaning water bucket in real time; and the PLC control unit is used for dynamically controlling the ozone flow of the ozone generation unit according to data detected by the ozone concentration detection unit. According to the utility model, ozone micro-nano bubbles and mechanical cleaning are realized in the same desalting equipment unit, so that the effect of effectively stripping chlorine-containing substances on the surface of sea sand and in pores of the sea sand is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of sea sand desalination equipment, specifically to a deep dechlorination desalination system for sea sand. Background Technology

[0002] Concrete, an indispensable material in modern construction, has seen its demand continuously increase with the rapid development of the global economy. Sand, especially river sand, a crucial component of concrete, has experienced an increasingly prominent supply-demand imbalance in recent years. Due to the limited resources of river sand and the environmental damage caused by over-exploitation, finding alternative sand materials has become an urgent problem to be solved.

[0003] Sea sand, as an abundant natural resource, has attracted much attention due to its large reserves and wide distribution. With proper desalination, the chloride content of sea sand can be reduced to meet the standards for construction sand, thus becoming an effective way to solve the shortage of river sand resources. However, the high chloride content of sea sand is a problem that cannot be ignored. Chloride ions are corrosive to steel reinforcement; if chloride ions in sea sand are not effectively removed, they will directly threaten the durability and safety of concrete structures.

[0004] While some progress has been made in the technology for sea sand desalination, many shortcomings remain. Traditional desalination equipment primarily removes chloride ions from sea sand through mechanical washing, but this method often fails to remove chloride ions completely, leading to the slow release of chloride ions and affecting the quality of concrete. Furthermore, existing treatment equipment is not only large in size and time-consuming, but also consumes a huge amount of washing water, resulting in significant water waste.

[0005] To overcome these drawbacks, some technologies have attempted to employ ozone-assisted mechanical cleaning for chlorine removal. However, this method faces challenges in practical applications, including low ozone utilization and the inability to effectively control ozone usage. Excessive ozone use not only increases treatment costs but also easily spills into the environment, posing potential hazards to human health and the environment. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a deep dechlorination and desalination system for sea sand, which aims to solve the problems of large footprint, long processing time, incomplete removal of chloride ions and low ozone utilization rate of existing equipment or systems, while improving the utilization rate of cleaning water.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A deep dechlorination and desalination system for sea sand, characterized in that it comprises:

[0009] A mechanical sand washing device, comprising a washing water tank and a mechanical rotating washing module disposed within the washing water tank;

[0010] An ozone device, comprising an ozone generating unit for generating micro-nano bubbles, a micro-nano bubble generating unit, a plurality of micro-nano bubble releasing units for releasing micro-nano bubbles into a cleaning water tank, and an ozone concentration detection unit for real-time detection of ozone concentration in the cleaning water tank.

[0011] The PLC control unit is used to dynamically control the ozone flow of the ozone generating unit based on the data detected by the ozone concentration detection unit.

[0012] Furthermore, the mechanical rotation cleaning module includes a sand hopper connected to the cleaning hopper via a gearbox shaft. The cleaning hopper has an inlet on one side and an outlet on the other side. The bottom of the cleaning hopper has a discharge port with a control valve. Protective baffles are symmetrically arranged on both sides of the cleaning hopper.

[0013] Furthermore, the ozone generating unit is provided with an air inlet on one side and ozone is delivered to the micro-nano bubble generating unit through a first connecting pipe on the other side. It also includes an ozone flow control unit that is controlled and connected to the ozone generating unit, and the ozone flow control unit is controlled and connected to the PLC control unit.

[0014] Furthermore, one end of the micro-nano bubble generating unit is provided with an inlet for introducing cleaning water, and ozone and cleaning water are fused in the micro-nano bubble generating unit. The micro-nano bubble generating unit then transports the generated gas-liquid mixture to several micro-nano bubble releasing units through a second connecting pipe and several branch pipes.

[0015] Furthermore, several of the micro-nano bubble release units are symmetrically and evenly arranged on both sides of the cleaning water tank. The micro-nano bubble release units are located below the protective baffle, and each micro-nano bubble release unit is fixedly installed on the side of the cleaning water tank by threads and leak-proof gaskets.

[0016] Furthermore, it also includes an ozone detection probe disposed on the bottom side of the cleaning water tank. The ozone detection probe is connected to the ozone concentration detection unit via a transmission line, and the ozone concentration detection unit is connected to the PLC control unit via a transmission line.

[0017] Furthermore, the washing water tank is fixed to the ground by means of a base and bolts.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention integrates ozone micro-nano bubbles and mechanical cleaning into a single desalination unit, reducing the equipment's footprint and improving the effective removal of chlorine-containing substances from the surface and pores of sea sand. Simultaneously, the ozone micro-nano bubbles possess strong dissolving power and high mass transfer efficiency; at the same dissolved ozone concentration, the gas holdup of ozone micro-nano bubbles is significantly higher than that of traditional ozone bubbles, thus significantly improving ozone utilization. The PLC control unit, ozone generation unit, and ozone concentration detection unit are linked, and ozone flow control is achieved through ozone concentration detection feedback in the mechanical cleaning equipment. This effectively prevents excess ozone release into the environment, reducing the harm of ozone to the ecological environment and human health. The number of micro-nano bubble release units can be adjusted according to the processing capacity of the sea sand desalination equipment, and convenient and quick disassembly facilitates maintenance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the components of a deep dechlorination and desalination system for sea sand according to the present invention;

[0022] Figure 2 This is a side view schematic diagram of the micro / nano bubble release unit;

[0023] Figure 3 A top view of the micro / nano bubble release unit;

[0024] In the diagram: 1. Ozone generating unit; 2. Ozone flow control unit; 3. Micro-nano bubble generating unit; 4. Micro-nano bubble releasing unit; 5. PLC control unit; 6. Mechanical sand washing machine device; 7. Ozone concentration detection unit; 11. Air inlet; 31. First connecting pipe; 32. Water inlet; 33. Second connecting pipe; 34. Second connecting pipe branch pipe; 61. Fixing bolt; 62. Feed inlet; 63. Discharge outlet; 64. Gearbox shaft; 65. Washing water tank; 66. Discharge outlet; 67. Protective baffle; 68. Sand hopper; 71. Ozone concentration detector probe. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] like Figure 1-3 As shown, a deep dechlorination and desalination system for sea sand includes:

[0030] Mechanical sand washing device 6, which includes a washing water tank 65 and a mechanical rotating washing module disposed in the washing water tank 65.

[0031] The ozone device includes an ozone generating unit 1 and a micro-nano bubble generating unit 3 for generating micro-nano bubbles; it also includes a plurality of micro-nano bubble releasing units 4 for releasing micro-nano bubbles into the cleaning water tank 65, and an ozone concentration detection unit 7 for real-time detection of the ozone concentration in the cleaning water tank 65.

[0032] The PLC control unit 5 is used to dynamically control the ozone flow of the ozone generating unit 1 based on the data detected by the ozone concentration detection unit 7.

[0033] Specifically, as shown in the figure, the mechanical rotation cleaning module includes a sand hopper 68 driven by a gearbox shaft 64 and connected to the cleaning hopper 65. The cleaning hopper 65 has an inlet 62 on one side and an outlet 63 on the other side. The bottom of the cleaning hopper 65 has a discharge port 66, and a control valve is installed on the discharge port 66. Protective baffles 67 are symmetrically arranged on both sides of the cleaning hopper 65.

[0034] The mechanical sand washing device is the core component of the system, comprising a washing hopper 65 and a mechanically rotating washing module. The mechanically rotating washing module drives the sand hopper 68 to rotate within the washing hopper 65 via a gearbox shaft 64, ensuring the sea sand is thoroughly agitated and washed in the washing water. The washing hopper 65 has an inlet 62 on one side for adding the sea sand to be treated; and an outlet 63 on the other side for discharging the washed sea sand. A discharge port 66 is located at the bottom of the washing hopper 65 for discharging the washing water containing chloride ions and other impurities; a control valve is installed on the discharge port 66 to regulate the discharge rate.

[0035] Specifically, as shown in the figure, the ozone generating unit 1 has an air inlet 11 on one side, and ozone is transported to the micro-nano bubble generating unit 3 through a first connecting pipe 31 on the other side. It also includes an ozone flow control unit 2 connected to the ozone generating unit 1, which is controlled by the PLC control unit 5. One end of the micro-nano bubble generating unit 3 has a water inlet 32 ​​for introducing cleaning water. The ozone and cleaning water are fused in the micro-nano bubble generating unit 3, and the generated gas-liquid mixture is transported to several micro-nano bubble releasing units 4 through a second connecting pipe 33 and several branch pipes 34. Several micro-nano bubble releasing units 4 are symmetrically and evenly arranged on both sides of the cleaning water tank 65. The micro-nano bubble releasing units 4 are located below the protective baffle, and each micro-nano bubble releasing unit 4 is fixed to the side of the cleaning water tank 65 by threads and leak-proof gaskets.

[0036] The ozone generator includes an ozone generating unit 1, a micro / nano bubble generating unit 3, a micro / nano bubble releasing unit 4, and an ozone concentration detection unit 7. The ozone generating unit 1 draws in air through an air inlet 11 and generates ozone gas. The ozone gas is transported to the micro / nano bubble generating unit 3 through a first connecting pipe 31. One end of the micro / nano bubble generating unit 3 has a water inlet 32 ​​for introducing cleaning water. Inside the micro / nano bubble generating unit 3, the ozone gas and cleaning water undergo gas-liquid fusion to form a gas-liquid mixture containing micro / nano bubbles. The gas-liquid mixture is transported to several micro / nano bubble releasing units 4 through a second connecting pipe 33 and several branch pipes 34. The micro / nano bubble releasing units 4 release the gas-liquid mixture in the form of micro / nano bubbles into the cleaning water tank 65. Micro / nano bubbles have extremely high specific surface area and surface energy, enabling them to react more effectively with chloride ions on the surface of sea sand, accelerating chloride ion removal.

[0037] Micro-nano bubble release unit 3 releases ozone micro-nano bubbles into the cleaning water tank 65, which washes the incoming sea sand, further stripping away chlorine-containing substances from the surface and pores of the sea sand. Simultaneously, dissolved chlorides entering the cleaning water are oxidized by ozone. The oxidation reaction is as follows: Cl... - +O3→O2+ClO - or Cl - +O3→O2+Cl2, effectively reducing the chloride ion content in water and improving the utilization rate of cleaning water. At the same time, compared with traditional ozone directly introduced into water, ozone micro-nano bubbles achieve a higher saturated dissolved ozone concentration. In addition, their slow rising speed and negative surface charge promote the generation of more hydroxyl radicals, further enhancing their oxidation performance.

[0038] Furthermore, temperature has a significant impact on the dissolution of ozone gas and the residence time of micro- and nano-bubbles in water. However, when the rotating shaft drives the sea sand hopper to rotate and wash, the heat generated during the release of ozone micro- and nano-bubbles can be reduced, ensuring that the water temperature does not rise too high during operation, thus guaranteeing the ozone solubility and residence time.

[0039] Specifically, as shown in the figure, it also includes an ozone detection probe 71 disposed on the bottom side of the cleaning water tank 65. The ozone detection probe 71 is connected to the ozone concentration detection unit 7 through a transmission line, and the ozone concentration detection unit 7 is connected to the PLC control unit 5 through a transmission line.

[0040] The PLC control unit 5 is the control center of the entire system. Based on data detected by the ozone concentration detection unit 7, it dynamically adjusts the ozone flow rate of the ozone generating unit 1. The ozone concentration detection unit 7 uses an ozone detection probe 71 located at the bottom of the cleaning water tank 65 to detect the ozone concentration in the cleaning water tank 65 in real time and transmits the data to the PLC control unit 5. Based on the received data, the PLC control unit 5 adjusts the ozone output of the ozone generating unit 1 by controlling the ozone flow control unit 2 to ensure that the ozone concentration in the cleaning water tank 65 remains within the optimal range.

[0041] The ozone detector in the ozone concentration detection unit can obtain the ozone concentration in the water in real time through the ozone concentration probe set at the bottom of the cleaning water tank, and feed it back to the PLC control unit. The PLC control unit adjusts the ozone flow control unit according to the set program, thereby effectively increasing the ozone concentration while controlling it to be close to the saturation concentration, effectively reducing the impact of excess ozone overflowing into the environment on human health and the ecological environment.

[0042] Specifically, as shown in the figure, the cleaning water tank 65 is fixed to the ground by a base and bolts 61 to prevent the mechanical shaft from tipping over when rotating.

[0043] This invention integrates ozone micro-nano bubbles and mechanical cleaning into a single desalination unit, reducing the equipment's footprint and improving the effective removal of chlorine-containing substances from the surface and pores of sea sand. Simultaneously, the ozone micro-nano bubbles possess strong dissolving power and high mass transfer efficiency; at the same dissolved ozone concentration, the gas holdup of ozone micro-nano bubbles is significantly higher than that of traditional ozone bubbles, thus significantly improving ozone utilization. The PLC control unit, ozone generation unit, and ozone concentration detection unit are linked, and ozone flow control is achieved through ozone concentration detection feedback in the mechanical cleaning equipment. This effectively prevents excess ozone release into the environment, reducing the harm of ozone to the ecological environment and human health. The number of micro-nano bubble release units can be adjusted according to the processing capacity of the sea sand desalination equipment, and convenient and quick disassembly facilitates maintenance.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sea sand depth dechlorination desalination system, characterized by, include: A mechanical sand washing device, comprising a washing water tank and a mechanical rotating washing module disposed within the washing water tank; An ozone device, comprising an ozone generating unit for generating micro-nano bubbles, a micro-nano bubble generating unit, a plurality of micro-nano bubble releasing units for releasing micro-nano bubbles into a cleaning water tank, and an ozone concentration detection unit for real-time detection of ozone concentration in the cleaning water tank. The PLC control unit is used to dynamically control the ozone flow of the ozone generating unit based on the data detected by the ozone concentration detection unit.

2. A sea water depth dechlorination desalination system as claimed in claim 1, wherein, The mechanical rotation cleaning module includes a sand hopper connected to the cleaning hopper via a gearbox shaft. The cleaning hopper has an inlet on one side and an outlet on the other side. The bottom of the cleaning hopper has a discharge port with a control valve. Protective baffles are symmetrically arranged on both sides of the cleaning hopper.

3. A sea water depth dechlorination desalination system as claimed in claim 2, wherein, The ozone generating unit has an air inlet on one side and an ozone supply to the micro-nano bubble generating unit via a first connecting pipe on the other side. It also includes an ozone flow control unit that is controlled and connected to the ozone generating unit, and the ozone flow control unit is controlled and connected to the PLC control unit.

4. A sea water depth dechlorination desalination system as claimed in claim 3, wherein, One end of the micro-nano bubble generating unit is provided with an inlet for introducing cleaning water. Ozone and cleaning water are fused in the micro-nano bubble generating unit. The micro-nano bubble generating unit then transports the generated gas-liquid mixture to several micro-nano bubble releasing units through a second connecting pipe and several branch pipes.

5. A sea water depth dechlorination desalination system as claimed in claim 4, wherein, Several micro-nano bubble release units are symmetrically and evenly arranged on both sides of the cleaning water tank. The micro-nano bubble release units are located below the protective baffle. Each micro-nano bubble release unit is fixedly installed on the side of the cleaning water tank by threads and leak-proof gaskets.

6. A sea water depth dechlorination desalination system as claimed in claim 5 wherein, It also includes an ozone detection probe disposed on the bottom side of the cleaning water tank. The ozone detection probe is connected to the ozone concentration detection unit through a transmission line, and the ozone concentration detection unit is connected to the PLC control unit through a transmission line.

7. A sea water depth dechlorination desalination system as claimed in claim 6, wherein, The cleaning water tank is fixed to the ground by a base and bolts.

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