Quantitative dosing device of medicament for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment medicament quantitative adding device which comprises a support frame body, a vertical plate, an extension frame, a fixed plate and a medicament temporary storage cylinder, wherein a medicament storage barrel is mounted at the top of the supporting frame body, and a first electric control valve body is arranged at the liquid discharging end of the bottom of the medicament storage barrel; wherein the vertical plate is fixed on one side of the support frame body. Through linkage of the mass sensor, the first electric control valve body, the second electric control valve body and the control display screen, a high-precision weighing type quantitative control system is formed, a medicament is accurately metered and put into the medicament temporary storage barrel from the medicament storage barrel at first, and then the medicament is added; the metering error of a traditional flow pump caused by the change of the medicament viscosity and the pipeline pressure is effectively avoided, high-precision quantitative feeding in the real sense is achieved, the treatment effect is greatly improved, and the medicament cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a quantitative dosing device for wastewater treatment agents. Background Technology

[0002] Wastewater treatment is an important component of modern environmental protection and water resource recycling. In the wastewater treatment process, the precise dosage of chemicals is a crucial step, directly impacting treatment effectiveness and cost control. Chemicals are commonly used for purposes such as adjusting water quality, promoting the flocculation of suspended solids, disinfection, and removal of specific pollutants.

[0003] In existing wastewater treatment systems, there are two main methods for adding chemicals: manual dosing and automatic dosing. Manual dosing relies on the operator's experience and judgment, which often results in inaccurate dosage and large fluctuations. This not only affects the wastewater treatment effect but may also lead to waste or insufficient chemicals. While automatic dosing devices can improve the accuracy of dosing, existing automatic dosing devices often have limited precision and cannot meet the precise dosage requirements of different treatment stages. Therefore, we propose a quantitative dosing device for wastewater treatment chemicals. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative dosing device for wastewater treatment agents, which has the advantages of high precision and quantitative dosing, and solves the problems of inaccurate and large fluctuations in agent dosage during wastewater treatment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quantitative dosing device for wastewater treatment agents, comprising:

[0006] Support frame, uprights, extension frame, fixing plate, and temporary storage cylinder for medicine;

[0007] The top of the support frame is equipped with a medicine storage tank, and the bottom of the medicine storage tank is equipped with a first electrically controlled valve.

[0008] The upright plate is fixed to one side of the support frame, and a control display screen and an alarm are installed on the right side of the upright plate.

[0009] The extension frame is installed on the left side of the support frame, and a liquid-passing cylinder is installed at one end of the top of the extension frame;

[0010] The fixing plate is fixed to the right side of the support frame, and a support seat is fixed to one side of the fixing plate. A mass sensor is installed at the bottom of the inner side of the support seat.

[0011] The medicine storage cylinder is located inside the support base. The top of the medicine storage cylinder is connected to the bottom of the liquid discharge end of the medicine storage tank through a pipe. The bottom discharge end of the medicine storage cylinder is equipped with a second electrically controlled valve body. A connecting pipe is connected between the bottom of the discharge end of the medicine storage cylinder and the rear end of one side of the liquid passage cylinder.

[0012] Preferably, a first liquid level sensor is installed on the inner surface of one end of the top cover of the medicine storage tank, and the output end of the first liquid level sensor is electrically connected to the input end of the control display screen.

[0013] Preferably, a U-shaped protective cover located outside the control display screen and alarm is fixed to the upper right end of the upright plate.

[0014] Preferably, a second liquid level sensor is installed on the inner surface of one end of the extension frame, and the output end of the second liquid level sensor is electrically connected to the input end of the control display screen.

[0015] Preferably, the liquid-conducting cylinder is a cylindrical structure with two internal cavities, one of which has a liquid-guiding groove on its inner surface at the separation point between the two cavities.

[0016] Preferably, a liquid-passing rotating shaft is movably connected to the inner surface of the liquid-passing cylinder, a drive impeller is installed on the outer surface of the upper cavity of the liquid-passing cylinder, and a liquid-passing groove is provided on the outer surface of the lower cavity of the liquid-passing cylinder.

[0017] Preferably, the bottom of the liquid-passing shaft is connected to a liquid-passing plate, and the bottom of the liquid-passing plate is provided with a liquid-passing hole, the inner diameter of which gradually increases from the middle end of the liquid-passing plate to both ends.

[0018] Preferably, the support is a disc-shaped structure with a through hole at the bottom and a placement groove at the top.

[0019] Preferably, a negative pressure fan is installed at the lower left end of the upright plate. The exhaust end of the negative pressure fan is connected to the top of the medicine storage cylinder through a pipe, and the input end of the negative pressure fan is electrically connected to the output end of the control display screen.

[0020] Preferably, the output terminal of the control display screen is electrically connected to the input terminals of the alarm, the first electrically controlled valve body, and the second electrically controlled valve body.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This invention establishes a high-precision weighing-type quantitative control system through the linkage of a mass sensor, a first electrically controlled valve body, a second electrically controlled valve body, and a control display screen. The reagent is first precisely measured and placed into the reagent temporary storage cylinder from the reagent storage tank before being added. This effectively avoids the measurement errors caused by changes in reagent viscosity and pipeline pressure caused by traditional flow pumps, achieving truly high-precision quantitative addition, greatly improving the treatment effect and saving reagent costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cooperation structure between the support frame and the sewage treatment tank of this utility model;

[0024] Figure 2 This utility model Figure 1 Another perspective structural diagram;

[0025] Figure 3 This is a partial cross-sectional structural diagram of the support frame of this utility model;

[0026] Figure 4 This is a schematic diagram of the support structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the liquid-passing cylinder structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the liquid-passing plate structure of this utility model.

[0029] In the diagram: 1. Support frame; 101. Medicine storage tank; 102. First electrically controlled valve body; 103. First liquid level sensor; 2. Vertical plate; 201. U-shaped protective cover; 202. Control display screen; 203. Alarm; 204. Negative pressure fan; 3. Extension frame; 301. Second liquid level sensor; 302. Liquid passage cylinder; 303. Drive impeller; 304. Liquid guide groove; 305. Liquid passage groove; 306. Liquid passage shaft; 307. Liquid passage plate; 308. Liquid passage hole; 4. Fixing plate; 401. Support seat; 402. Mass sensor; 5. Medicine temporary storage cylinder; 501. Second electrically controlled valve body; 502. Connecting pipe. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The components of this application, including the support frame 1, the medicine storage tank 101, the first electrically controlled valve body 102, the first liquid level sensor 103, the upright plate 2, the U-shaped protective cover 201, the control display screen 202, the alarm 203, the negative pressure fan 204, the extension frame 3, the second liquid level sensor 301, the liquid passage cylinder 302, the drive impeller 303, the liquid guide groove 304, the liquid passage groove 305, the liquid passage shaft 306, the liquid passage plate 307, the liquid passage hole 308, the fixing plate 4, the support base 401, the mass sensor 402, the medicine temporary storage cylinder 5, the second electrically controlled valve body 501, and the connecting pipe 502, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0032] Example 1

[0033] Please see Figures 1-6 As shown, this utility model provides a technical solution: a quantitative dosing device for wastewater treatment agents, comprising:

[0034] Support frame 1, upright plate 2, extension frame 3, fixing plate 4, and temporary storage cylinder for medicine 5;

[0035] Among them, a medicine storage tank 101 is installed on the top of the support frame 1, and a first electrically controlled valve body 102 is provided at the bottom of the medicine storage tank 101 for draining.

[0036] The upright plate 2 is fixed to one side of the support frame 1, and a control display screen 202 and an alarm 203 are installed on the right side of the upright plate 2.

[0037] Among them, the extension frame 3 is installed on the left side of the support frame 1, and a liquid-passing cylinder 302 is installed at one end of the top of the extension frame 3;

[0038] Among them, the fixing plate 4 is fixed to the right side of the support frame 1, and a support seat 401 is fixed on one side of the fixing plate 4. A mass sensor 402 is installed at the bottom of the inner side of the support seat 401.

[0039] The medicine storage cylinder 5 is located inside the support 401. The top of the medicine storage cylinder 5 is connected to the bottom of the discharge end of the medicine storage tank 101 through a pipe. The discharge end of the bottom of the medicine storage cylinder 5 is equipped with a second electrically controlled valve body 501. A connecting pipe 502 connects the bottom of the discharge end of the medicine storage cylinder 5 with the rear end of one side of the liquid passage cylinder 302.

[0040] The support 401 is a disc-shaped structure with a through hole at the bottom and a placement groove at the top. The output end of the control display screen 202 is electrically connected to the input ends of the alarm 203, the first solenoid valve body 102, and the second solenoid valve body 501.

[0041] This technical solution is as follows: First, the device is securely placed in a suitable location next to the sewage tank using the support frame 1. The medicine storage tank 101 is placed on top of the support frame 1, and its bottom outlet is connected to the top inlet of the medicine storage cylinder 5 via a pipe. A first electrically controlled valve body 102 is installed on this pipe. The medicine storage cylinder 5 is placed on a support 401 on one side of the fixed plate 4, ensuring effective contact between it and the mass sensor 402 inside the support 401 for weighing. The bottom outlet of the medicine storage cylinder 5 is connected to the inlet of the upper cavity of the liquid-conducting cylinder 302 at the end of the extension frame 3 via a pipe with a second electrically controlled valve body 501 installed, and then via a connecting pipe 502 (the connecting pipe 502 is a plastic flexible tube). Next, the system is powered on, and the control display screen 202 completes the automatic... When it is necessary to add the agent (which can be triggered by a timer or by receiving an external signal), the control display screen 202 issues a command to open the first electrically controlled valve body 102. The agent flows from the agent storage tank 101 into the agent temporary storage tank 5. The mass sensor 402 monitors the weight change of the agent temporary storage tank 5 in real time and transmits the data to the control display screen 202. When the weight of the flowing agent reaches the preset value, the control display screen 202 immediately closes the first electrically controlled valve body 102 to stop the liquid inlet. The agent enters the liquid flow tank 302 through the connecting pipe 502 and is finally discharged. This effectively avoids the metering error caused by the viscosity of the agent and the change of pipeline pressure in traditional flow pumps, and realizes a truly high-precision quantitative dosing, which greatly improves the treatment effect and saves the cost of the agent.

[0042] It should be noted that the internal program of the control display screen 202 can be integrated with a PLC or a single-chip microcomputer system. Operators can set the dosing parameters (such as the amount added at one time, the dosing frequency, etc.) through the touch screen, and can also connect to the signal of the second liquid level sensor 301 to intelligently adjust the dosing amount according to the real-time liquid level (i.e., water volume) of the sewage tank, so as to achieve a more advanced feedforward control.

[0043] Example 2

[0044] Based on Embodiment 1, this utility model is as follows: Figures 1-6 As shown, a first liquid level sensor 103 is installed on the inner surface of one end of the top lid of the medicine storage tank 101, and the output end of the first liquid level sensor 103 is electrically connected to the input end of the control display screen 202.

[0045] This technical solution allows for real-time monitoring of the liquid level in the reagent storage tank 101 via the first liquid level sensor 103. If the level falls below the set lower limit, the control display screen 202 will activate the alarm 203 to alert staff and remind them to replenish the reagents in time. This prevents sewage treatment system outages due to reagent shortages and facilitates equipment maintenance and management.

[0046] Example 3

[0047] Based on Embodiment 1, this utility model is as follows: Figures 1-6 As shown, a U-shaped protective cover 201 is fixed to the upper right side of the upright plate 2, located outside the control display screen 202 and the alarm 203.

[0048] This technical solution provides effective waterproof, dustproof, and physical impact protection for the control and display unit through the U-shaped protective cover 201.

[0049] Example 4

[0050] Based on Embodiment 1, this utility model is as follows: Figures 1-6 As shown, a second liquid level sensor 301 is installed on the inner surface of one end of the extension frame 3, and the output end of the second liquid level sensor 301 is electrically connected to the input end of the control display screen 202.

[0051] This technical solution: By setting the second liquid level sensor 301, the change in sewage volume can be sensed according to the signal of the second liquid level sensor 301 and the dosing strategy can be intelligently adjusted without manual intervention, which greatly reduces the labor intensity of operators, reduces the operational abnormalities caused by human error, and ensures the continuity and stability of the sewage treatment process.

[0052] Example 5

[0053] Based on Embodiment 1, this utility model is as follows: Figures 1-6 As shown, a liquid-passing cylinder 302 has a liquid-passing rotating shaft 306 movably connected to its inner surface. A drive impeller 303 is installed on the outer surface of the upper cavity of the liquid-passing cylinder 302. A liquid-passing groove 305 is provided on the outer surface of the lower cavity of the liquid-passing cylinder 302. A liquid-passing plate 307 is connected to the bottom of the liquid-passing rotating shaft 306. A liquid-passing hole 308 is provided at the bottom of the liquid-passing plate 307. The inner diameter of the liquid-passing hole 308 gradually increases from the middle end of the liquid-passing plate 307 to both ends. A negative pressure fan 204 is installed at the lower end of the left side of the vertical plate 2. The exhaust end of the negative pressure fan 204 is connected to the top of the drug storage cylinder 5 through a pipe. The input end of the negative pressure fan 204 is electrically connected to the output end of the control display screen 202.

[0054] This technical solution involves connecting the exhaust pipe of the negative pressure fan 204 to the top air inlet of the drug storage cylinder 5. All electrical components (first liquid level sensor 103, second liquid level sensor 301, mass sensor 402, first solenoid valve body 102, second solenoid valve body 501, negative pressure fan 204, alarm 203) have their cables connected to the interface on the back of the control display screen 202, completing the electrical connection. When the drug enters the liquid-conducting cylinder 302 through the connecting pipe 502, the control display screen 202 simultaneously opens the second solenoid valve body 501 and the negative pressure fan 204. The positive air pressure generated by the negative pressure fan 204 is forced into the top of the drug storage cylinder 5, pressurizing the liquid inside. The force compels the agent to be pressurized and injected at high speed into the upper cavity of the liquid-conducting cylinder 302 through the connecting pipe 502. The high-speed liquid flow impacts and drives the impeller 303, causing it to rotate together with the liquid-conducting shaft 306 and the liquid-conducting plate 307 at the bottom. Subsequently, the agent enters the lower cavity through the liquid guide groove 304, flows into the liquid-conducting groove 305 on the liquid-conducting shaft 306, and finally enters the rotating liquid-conducting plate 307. Finally, under the action of centrifugal force, the agent is evenly thrown out from the specially designed liquid-conducting hole 308 at the bottom of the liquid-conducting plate 307. Since the inner diameter of the liquid-conducting hole 308 gradually expands from the middle to both ends, it ensures the uniformity of the agent discharge throughout the sweeping area, thereby achieving rapid and uniform mixing with the sewage. This design realizes the three-dimensional and uniform dissemination of the agent from point to surface, completely solving the problems of local overconcentration of the agent, uneven mixing, and poor flocculation effect caused by traditional single-point dosing, and can significantly improve the flocculation reaction efficiency.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A quantitative dosing device for wastewater treatment agents, characterized in that, Include: Support frame (1), vertical plate (2), extension frame (3), fixed plate (4) and medicine temporary storage cylinder (5); Wherein, the top of the support frame (1) is provided with a medicine storage barrel (101), and the bottom of the medicine storage barrel (101) is provided with a first electric control valve body (102). Wherein, the vertical plate (2) is fixed on one side of the support frame (1), and the right side of the vertical plate (2) is provided with a control display screen (202) and an alarm (203). Wherein, the extension frame (3) is installed on the left side of the support frame (1), and one end of the top of the extension frame (3) is provided with a liquid passing cylinder (302). Wherein, the fixed plate (4) is fixed on the right side of the support frame (1), and one side of the fixed plate (4) is fixed with a supporting seat (401), and the bottom of the inner side of the supporting seat (401) is provided with a mass sensor (402). Wherein, the medicine temporary storage cylinder (5) is located in the inner side of the supporting seat (401), the top of the medicine temporary storage cylinder (5) is communicated with the bottom of the liquid discharge end of the medicine storage barrel (101) through a pipeline, the bottom of the medicine temporary storage cylinder (5) is provided with a second electric control valve body (501), and the bottom of the discharge end of the medicine temporary storage cylinder (5) is communicated with the rear end of one side of the liquid passing cylinder (302) through a communication pipe (502).

2. The agent dosing device for sewage treatment according to claim 1, characterized in that: The inner surface of one end of the top cover of the medicine storage barrel (101) is provided with a first liquid level sensor (103), and the output end of the first liquid level sensor (103) is electrically connected with the input end of the control display screen (202).

3. The agent dosing device for sewage treatment according to claim 1, characterized in that: The upper end of the right side of the vertical plate (2) is fixed with a U-shaped shielding cover (201) located outside the control display screen (202) and the alarm (203).

4. The agent dosing device for sewage treatment according to claim 1, characterized in that: The inner surface of one end of the extension frame (3) is provided with a second liquid level sensor (301), and the output end of the second liquid level sensor (301) is electrically connected with the input end of the control display screen (202).

5. The agent dosing device for sewage treatment according to claim 1, characterized in that: The liquid passing cylinder (302) is a cylindrical structure with two cavities inside, and a liquid guide groove (304) is formed in the inner surface of one end of the separation between the two cavities.

6. The agent dosing device for sewage treatment according to claim 5, characterized in that: The inner surface of the liquid passing cylinder (302) is movably connected with a liquid passing shaft (306), the outer surface of the liquid passing shaft (306) located in the upper cavity of the liquid passing cylinder (302) is provided with a driving impeller (303), and the outer surface of the liquid passing shaft (306) located in the lower cavity of the liquid passing cylinder (302) is provided with a liquid passing groove (305).

7. The agent dosing device for sewage treatment according to claim 6, characterized in that: The bottom of the liquid passing shaft (306) is communicated with a liquid passing plate (307), the bottom of the liquid passing plate (307) is provided with a liquid passing hole (308), and the inner diameter of the liquid passing hole (308) gradually increases from the middle end to both ends of the liquid passing plate (307).

8. The agent dosing device for sewage treatment according to claim 1, characterized in that: The supporting seat (401) is a disc-shaped structure provided with a through hole at the bottom and a placing groove at the top.

9. The agent dosing device for sewage treatment according to claim 1, characterized in that: The lower end of the left side of the vertical plate (2) is provided with a negative pressure fan (204), the exhaust end of the negative pressure fan (204) is communicated with the top of the medicine temporary storage cylinder (5) through a pipeline, and the input end of the negative pressure fan (204) is electrically connected with the output end of the control display screen (202).

10. The agent dosing device for sewage treatment according to claim 1, characterized in that: The output end of the control display screen (202) is electrically connected with the input end of the alarm (203), the first electric control valve body (102) and the second electric control valve body (501).

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