Integrated waste water silicon removal device

Abstract

The utility model provides an integrated waste water silicon removal device which comprises a device body, a PLC control panel is arranged on the device body, a water storage cavity, a reaction cavity and a filter cavity are arranged in the device body, and the water storage cavity, the reaction cavity and the filter cavity are communicated with one another from left to right through pipelines with water pumps. A third pipeline communicated with the lower part of the reaction cavity is arranged in the lower cavity of the filtering cavity, a third water pump is arranged on the third pipeline, the lower cavity of the filtering cavity is connected with a water inlet of the silicon online water quality analyzer through a fourth guide pipe with a fourth water pump, and a controller for controlling the third water pump to work is arranged outside the lower cavity of the filtering cavity. And both the silicon online water quality analyzer and the controller are in communication connection with the PLC control panel. As the types of the wastewater are different, the silicon element in the treated purified water is detected by the silicon online water quality analyzer, and the information is transmitted to the PLC control panel for communication, so that whether the water purification effect meets the drainage requirement or not can be determined.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater silicon removal, in particular to an integrated wastewater silicon removal device. Background Art

[0002] In natural water, silicate compounds are common impurities. The content of silicate compounds in groundwater is usually higher than that in surface water. The mass concentration of silicate compounds in natural water is generally in the range of 1 to 20 mg / L (SiO2), and some in groundwater are as high as 60 mg / L (SiO2). Silicon exists mainly in four forms, including silicate compounds in molecular and ionic states, unstable colloidal silicon, silicate compounds in adsorbed states, and relatively stable coarse-grained silicate compounds. The formation of silica scale is divided into internal and external causes. The internal cause is the presence of various forms of silicon in the solution, and the external cause is the precipitation caused by supersaturation due to various conditions. When various forms of silicon and Ca are present in the system 2 + Mg 2 + 、CO3 2－ 、SO4 2－ During the circulation process, the concentration of various ions increases continuously. When supersaturation is reached, silicon-containing precipitates such as calcium silicate and magnesium silicate are formed. These already formed tiny particles will become nucleation centers, accelerating the precipitation process, thereby forming hard and dense silica scale. On the other hand, since other types of scale such as calcium carbonate and magnesium hydroxide may be formed due to concentration, these scale particles can also provide nucleation centers for silicate scale, thereby promoting the formation of mixed scale. In addition, due to the presence of a large amount of salt and the reduction of pH and pressure, silica colloids may precipitate to form amorphous or polymerized silicic acid precipitates. When the pressure of an industrial production process drops suddenly, substances such as silicates are most likely to deposit and form scaling.

[0003] The pH value in water has a great influence on the silicon removal effect. When the pH value is 8-10, the removal rate changes from 40% to 70% when the same amount of sodium aluminate (0.5 mL / 1000 mL) is added. When the pH value is 10, the removal rate is 69.3%, which is higher than the removal rate of 57.0% when the pH value is 8-9. In the prior art, most wastewater silicon removal devices treat the silicon element in the wastewater by precipitation and other steps, and do not test whether the water quality is qualified when the purified water is output. Due to the diversity of wastewater generation devices and the differences in the types of wastewater, the silicon element in the wastewater may still not meet the standard after one treatment. Utility Model Content

[0004] The utility model aims to provide an integrated wastewater desiliconization device to solve the problem that due to differences in wastewater types, there is no detection of whether the water quality is qualified when the purified water is output.

[0005] In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: an integrated wastewater desiliconization device, including a device body, a PLC control panel is provided on the device body, a water storage chamber, a reaction chamber and a filter chamber are provided in the device body, the upper part of the water storage chamber is connected with the upper part of the reaction chamber through a first pipe with a first water pump, a third filter screen is provided at the bottom of the filter chamber to separate the filter into two upper and lower chambers, the upper part of the reaction chamber is connected with the upper chamber of the filter chamber through a second pipe with a second water pump, the lower chamber of the filter chamber is provided with a third pipe connected with the lower part of the reaction chamber, the third pipe is provided with a third water pump, the lower chamber of the filter chamber is connected with the water inlet of the silicon online water quality analyzer through a fourth conduit with a fourth water pump, a controller for controlling the operation of the third water pump is provided outside the lower chamber of the filter chamber, and the silicon online water quality analyzer and the controller are both communicatively connected with the PLC control panel.

[0006] A further technical solution is that a water inlet and a water outlet are provided on the water storage chamber, a first filter is provided at the connection between the water storage chamber and the water inlet and the water outlet, a second filter is provided in the middle of the water storage chamber to divide the water storage chamber into two chambers, the water inlet and the water outlet are respectively provided on both sides of the second filter, and the water outlet is connected to the first pipe.

[0007] A further technical solution is that a reagent port is provided at the upper end of the reaction chamber, a stirring mechanism driven by a first motor is provided in the reaction chamber, a PH online tester is provided in the cavity wall of the reaction chamber, and the PH online tester is communicatively connected to the PLC control panel.

[0008] A further technical solution is that the stirring mechanism is a stirring rod, and the stirring rod is provided with stirring blades, and the stirring blades are distributed in a spiral manner.

[0009] A further technical solution is that a second motor is installed on the top of the filter chamber, the output end of the second motor is arranged downward, and the end is coaxially connected to a rotating disk, the lower side of the rotating disk is coaxially connected to a screw rod, a pressure plate is sleeved on the screw rod, and a threaded hole is provided on the pressure plate that passes through the upper and lower sides of the pressure plate, the threaded hole and the screw rod thread are matched and connected, the edge of the pressure plate and the cavity wall of the filter chamber are slidably fitted, and a sliding hole is provided on the pressure plate that passes through the upper and lower sides, a limit rod is slidably provided in the sliding hole, the upper and lower ends of the limit rod both pass through the upper and lower sides of the pressure plate, and are both connected to the limit seat, the limit seat and the cavity wall of the filter chamber are connected; a water hole is provided on the pressure plate that passes through the upper and lower sides, and a one-way valve that conducts one way from top to bottom is provided in the water hole.

[0010] A further technical solution is that the bottoms of the water storage chamber, the reaction chamber and the filter chamber are in an inverted cone structure.

[0011] A further technical solution is that a sewage outlet is provided at the bottom of the reaction chamber, and a water outlet is provided at the bottom of the filter chamber.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The device body is provided with a silicon online water quality analyzer connected to the filter chamber, a reflux pipe arranged between the filter chamber and the reaction chamber, and a controller installed with a reflux pipe water pump. When the device is working, the wastewater reacts in the reaction chamber, and the silicon element in the wastewater is removed by precipitation, and then transported to the filter chamber through a pipeline, and then filtered through a filter net to obtain clean water. The silicon online water quality analyzer extracts the clean water at the bottom of the filter chamber into the instrument, and detects the water quality of the clean water, such as the silicon element in the water quality. If the water quality does not meet the requirements of the clean water, the detection information will be transmitted to the PLC control panel. Since the PLC control panel is connected to the controller through communication, the information will be transmitted to the controller, and the clean water will be refluxed to the reaction chamber for another reaction to remove the remaining silicon element in the clean water. Finally, the specified clean water requirements are met, which can be beneficial to the human body and more environmentally friendly.

[0014] 2. By setting the filter screens between or within each cavity in the device body, the passing wastewater is filtered multiple times at multiple levels, which is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of an integrated wastewater desiliconization device.

[0016] Icons: 1-device body, 2-PLC control panel, 3-water storage chamber, 4-reaction chamber, 5-filtration chamber, 6-first water pump, 7-first pipeline, 8-second water pump, 9-second pipeline, 10-third pipeline, 11-third water pump, 12-fourth water pump, 13-fourth pipeline, 14-silicon online water quality analyzer, 15-controller, 16-first filter screen, 17-second filter screen, 18-reagent port, 19-first motor, 20-PH online tester, 21-stirring rod, 22-stirring blade, 23-second motor, 24-rotating disk, 25-limiting seat, 26-screw, 27-pressure plate, 28-third filter screen, 29-drain outlet, 30-drain outlet. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Example:

[0019] The utility model discloses an integrated wastewater desiliconization device, such as Figure 1As shown, the device comprises a device body 1, on which a PLC control panel 2 is provided, a water storage chamber 3, a reaction chamber 4 and a filter chamber 5 are provided in the device body 1, the upper part of the water storage chamber 3 is connected with the upper part of the reaction chamber 4 through a first pipe 7 with a first water pump 6, a third filter screen 28 is provided at the bottom of the filter chamber 5 for dividing the filter chamber 5 into two upper and lower chambers, the upper part of the reaction chamber 4 is connected with the upper chamber of the filter chamber 5 through a second pipe 9 with a second water pump 8, a third pipe 10 is provided at the lower part of the filter chamber 5 for connecting with the lower part of the reaction chamber 4, a third water pump 11 is provided on the third pipe 10, the lower chamber of the filter chamber 5 is connected with the water inlet of the silicon online water quality analyzer 14 through a fourth conduit 13 with a fourth water pump 12, a controller 15 for controlling the operation of the third water pump 11 is provided outside the lower chamber of the filter chamber 5, and the silicon online water quality analyzer 14 and the controller 15 are both communicatively connected with the PLC control panel 2. The silicon online water quality analyzer 14 extracts the clean water in the drainage chamber at the bottom of the filter chamber 5 into the silicon online water quality analyzer 14, and detects the water quality of the clean water, such as the silicon element in the water quality. If the water quality does not meet the requirements of the clean water, the detection information will be transmitted to the PLC control panel 2. Since the PLC control panel 2 is connected to the controller 15 through communication, the information will be transmitted to the controller 15, and the clean water will flow back to the reaction chamber 4 for reaction again to remove the remaining silicon element in the clean water; the first water pump 6, the second water pump 8, the third water pump 11 and the fourth water pump 12 are all connected to the PLC control panel 2 for communication, and the PLC control panel 2 can control the operation of the water pump so that the sewage can flow in each chamber.

[0020] Working principle of Silicon Online Water Quality 14 Analyzer: After the sewage is filtered, it will be transported to the detection module to adjust the pH value of the solution so that the solution has a suitable acidity and alkalinity. Then, the reagent, such as a color developer, will be added to the reaction container using the dosing mechanism, and the absorbance of the reactant will be measured. The concentration of silicon in the water can be detected by the absorbance and optical detection device.

[0021] As a preferred embodiment, on the basis of the above-mentioned manner, further, a water inlet and a water outlet are provided on the water storage chamber 3, and a first filter screen 16 is provided at the connection between the water storage chamber 3 and the water inlet and the water outlet, and a second filter screen 17 is provided in the middle of the water storage chamber 3 to divide the water storage chamber 3 into two chambers, and the water inlet and the water outlet are respectively provided on both sides of the second filter screen 17, and the water inlet is connected to the first pipe 7. By providing multiple layers of filter screens, sewage can be filtered multiple times when entering the device from the outside, reducing impurities and improving the treatment efficiency of wastewater; by providing the second filter screen 17, sewage can be filtered when entering the water storage chamber 3, removing impurities that cannot be filtered in the sewage, and improving the water purification effect of sewage.

[0022] As a preferred embodiment, on the basis of the above-mentioned method, further, a reagent port 18 is provided at the upper end of the reaction chamber 4, a stirring mechanism driven by a first motor 19 is provided in the reaction chamber 4, a PH online tester 20 is provided in the cavity wall of the reaction chamber 4, and the PH online tester 20 is communicatively connected with the PLC control panel 2. By providing a stirring mechanism, the sewage and the reaction reagent can be mixed and reacted fully and evenly by utilizing the stirring effect, thereby improving the effect and efficiency of the reaction; the PH online tester 20 is provided on the cavity inner wall in a pipeline manner, and according to the corresponding relationship between the electromotive force of the primary cell and the hydrogen ion concentration, the negative logarithm of the hydrogen ion concentration is the pH value.

[0023] The method of removing silicon in a reaction chamber comprises the following steps: 1. mixing the wastewater in a water storage chamber 3 and then entering the reaction chamber 4 through a first pipe 7 to obtain a balanced regulating liquid; 2. adjusting the pH of the regulated liquid to 10-10.5, adding sodium aluminate and magnesium oxide that are calculated to match the regulating liquid, stirring at the same time, and reacting for 20-30 minutes to obtain a reaction liquid; 3. adding a flocculant to the reaction liquid to obtain a flocculant liquid; 4. separating the flocculant liquid for a period of time to obtain a supernatant liquid and a sludge, wherein the supernatant liquid is the purified water after silicon removal.

[0024] As a preferred embodiment, on the basis of the above-mentioned manner, further, the stirring mechanism is a stirring rod 21, and a stirring blade 22 is provided on the stirring rod 21, and the stirring blade 22 is distributed in a spiral. By setting the stirring blade 22 in a spiral, the first motor 19 can be driven to stir in the cavity, so that the reagent added from the reagent port 18 can fully react with the silicon primary color in the sewage, fully combine, and can maximize the contact area, thereby improving the effect and efficiency of the reaction.

[0025] As a preferred embodiment, on the basis of the above-mentioned method, further, a second motor 23 is installed on the top of the filter chamber 5, the output end of the second motor 23 is arranged downward, and the end is coaxially connected with a rotating disk 24, the lower side of the rotating disk 24 is coaxially connected with a screw rod 26, a pressure plate 27 is sleeved on the screw rod 26, the pressure plate 27 is provided with a threaded hole running through the upper and lower sides of the pressure plate, the threaded hole and the screw rod 26 are threadedly matched and connected, the edge of the pressure plate 27 and the cavity wall of the filter chamber 5 are slidably fitted, the pressure plate 27 is provided with a sliding hole running through the upper and lower sides, a limit rod is slidably arranged in the sliding hole, the upper and lower ends of the limit rod both pass through the upper and lower sides of the pressure plate, and are both connected to the limit seat 25, the limit seat 25 and the cavity wall of the filter chamber 5 are connected; the pressure plate 27 is provided with a water hole running through the upper and lower sides, and a one-way valve that conducts one way from top to bottom is provided in the water hole. After the reacted water in the reaction chamber 4 is discharged into the filter chamber 5 through the second hanging pipe 9, the sewage to be reacted is added, and the second motor 23 drives the rotating disk 24 to rotate, and the limit rod is fixed with the limit seat 25 up and down through the sliding hole of the screw rod 26, so that when the rotating disk 24 rotates, the screw rod 26 drives the pressure plate 27 to gradually move downward. Since the pressure plate 27 is provided with water holes passing through the upper and lower sides, and a one-way valve that conducts unidirectionally from top to bottom is provided in the water hole, the pressure plate 27 will not rotate with the rotation of the rotating disk 24, and cooperates with the third filter screen 28 in the filter chamber 5 to squeeze the sewage in the filter chamber 5 to complete the filtration, which can speed up the filtration efficiency of the sewage.

[0026] As a preferred embodiment, on the basis of the above-mentioned embodiment, further, the bottoms of the water storage chamber 3, the reaction chamber 4 and the filter chamber 5 are in an inverted cone structure.

[0027] As a preferred embodiment, on the basis of the above-mentioned embodiment, further, a sewage outlet 29 is provided at the bottom of the reaction chamber 4 , and a water outlet 30 is provided at the bottom of the filter chamber 5 .

[0028] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. An integrated wastewater desiliconization device, comprising a device body (1), characterized in that: The device body (1) is provided with a PLC control panel (2). The device body (1) is provided with a water storage chamber (3), a reaction chamber (4) and a filter chamber (5). The upper part of the water storage chamber (3) is connected to the upper part of the reaction chamber (4) via a first pipe (7) with a first water pump (6). The bottom of the filter chamber (5) is provided with a third filter screen (28) for dividing the filter chamber (5) into two upper and lower chambers. The upper part of the reaction chamber (4) is connected to the upper chamber of the filter chamber (5) via a second pipe (9) with a second water pump (8). The lower chamber of the filter chamber (5) is provided with a third pipe (10) which is connected to the lower part of the reaction chamber (4); the third pipe (10) is provided with a third water pump (11); the lower chamber of the filter chamber (5) is connected to the water inlet of the silicon online water quality analyzer (14) through a fourth pipe (13) with a fourth water pump (12); a controller (15) for controlling the operation of the third water pump (11) is provided outside the lower chamber of the filter chamber (5); the silicon online water quality analyzer (14) and the controller (15) are both connected to the PLC control panel (2) for communication.

2. The integrated wastewater desiliconization device according to claim 1, characterized in that: The water storage chamber (3) is provided with a water inlet and a water outlet, and a first filter screen (16) is provided at the connection between the water storage chamber (3) and the water inlet and the water outlet. A second filter screen (17) is provided in the middle of the water storage chamber (3) to divide the water storage chamber (3) into two chambers, and the water inlet and the water outlet are respectively provided on both sides of the second filter screen (17), and the water outlet is connected to the first pipe (7).

3. The integrated wastewater desiliconization device according to claim 1, characterized in that: A reagent port (18) is provided at the upper end of the reaction chamber (4), a stirring mechanism driven by a first motor (19) is provided in the reaction chamber (4), a pH online tester (20) is provided in the cavity wall of the reaction chamber (4), and the pH online tester (20) is communicatively connected to the PLC control panel (2).

4. The integrated wastewater desiliconization device according to claim 3, characterized in that: The stirring mechanism is a stirring rod (21), and stirring blades (22) are arranged on the stirring rod (21), and the stirring blades (22) are distributed in a spiral shape.

5. The integrated wastewater desiliconization device according to claim 1, characterized in that: A second motor (23) is installed on the top of the filter chamber (5). The output end of the second motor (23) is arranged downwards and is coaxially connected to a rotating disk (24). A screw rod (26) is coaxially connected to the lower side of the rotating disk (24). A pressing plate (27) is sleeved on the screw rod (26). The pressing plate (27) is provided with threaded holes that pass through the upper and lower sides of the pressing plate (27). The threaded holes and the screw rod (26) are threadedly matched and connected. The edge of the pressing plate (27) The pressure plate (27) is slidably fitted with the cavity wall of the filter cavity (5); the pressure plate (27) is provided with a sliding hole passing through the upper and lower sides; a limit rod is slidably arranged in the sliding hole; the upper and lower ends of the limit rod pass through the upper and lower sides of the pressure plate (27) and are connected to the limit seat (25); the limit seat (25) is connected to the cavity wall of the filter cavity (5); the pressure plate (27) is provided with a water hole passing through the upper and lower sides; a one-way valve that conducts one way from top to bottom is arranged in the water hole.

6. The integrated wastewater desiliconization device according to claim 1, characterized in that: The bottoms of the water storage chamber (3), the reaction chamber (4) and the filter chamber (5) are in an inverted cone-shaped structure.

7. The integrated wastewater desiliconization device according to claim 1, characterized in that: The bottom of the reaction chamber (4) is provided with a sewage outlet (29), and the bottom of the filter chamber (5) is provided with a water outlet (30).

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