Ferric trichloride adding system

Abstract

The utility model provides a ferric trichloride adding system which is applied to the technical field of wastewater treatment. According to the system, the output end of a first conveying pump is connected with one end of a first conveying pipe; the output end of the second delivery pump is connected with one end of the second delivery pipe; the other end of the first conveying pipe is respectively connected with one end of a first detection pipe, one end of a first return pipe and one end of a first dosing branch pipe; the other end of the second conveying pipe is respectively connected with one end of a second detection pipe, one end of a second return pipe and one end of a second dosing branch pipe; the other end of the first backflow pipe is arranged on the first medicine outlet branch pipe and is communicated with the first medicine outlet branch pipe; the other end of the second backflow pipe is arranged on the second medicine outlet branch pipe and is communicated with the second medicine outlet branch pipe; and the other end of the first dosing branch pipe and the other end of the second dosing branch pipe are connected with one end of a dosing pipe. In this way, the adding efficiency of ferric trichloride can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a ferric chloride dosing system. Background Art

[0002] Ferric chloride is an effective coagulant widely used in the treatment of municipal and industrial wastewater. During the wastewater treatment process, ferric chloride reacts with suspended solids, colloidal matter, and organic matter in the water to form larger precipitates, thereby improving the sedimentation efficiency. The addition of ferric chloride effectively removes pollutants such as suspended solids, phosphorus, and nitrogen from wastewater, thereby reducing the chemical oxygen demand (COD) and biological oxygen demand (BOD), improving effluent quality, and meeting discharge standards. Traditional wastewater treatment processes typically utilize activated sludge processes and oxidation ditches. The use of ferric chloride can be combined with these processes to form a composite treatment system to improve treatment efficiency. Ferric chloride is relatively low-cost and reduces reliance on other chemicals during the treatment process, reducing the economic burden of wastewater treatment. The sludge formed during the ferric chloride treatment process not only removes pollutants from the wastewater but is also rich in nutrients and can be recycled as fertilizer. Properly treated sludge can be used for agricultural fertilization, reducing the use of chemical fertilizers, improving soil fertility, and achieving resource recycling.

[0003] At present, in the process of adding ferric chloride in existing wastewater treatment, operators are usually required to start and stop equipment on site and keep an eye on the equipment's operating status. The operators' workload is extremely high, which increases the company's operating costs. There are also safety hazards. Operators need to manually record the initial and cumulative dosage of the flow meter to control the dosage of process reagents. There is an error of artificial over-addition of reagents, which leads to low efficiency of ferric chloride addition. Utility Model Content

[0004] The purpose of the utility model is to provide a ferric chloride dosing system in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A ferric chloride dosing system, comprising:

[0007] A medicine tank (1), wherein the bottom end of the medicine tank (1) is fixedly connected to one end of a medicine outlet pipe (2); the other end of the medicine outlet pipe (2) is fixedly connected to one end of a first medicine outlet branch pipe (3) and one end of a second medicine outlet branch pipe (4); the other end of the first medicine outlet branch pipe (3) is fixedly connected to the input end of a first delivery pump (5); the other end of the second medicine outlet branch pipe (4) is fixedly connected to the input end of a second delivery pump (6); the first delivery pump (5) and the second delivery pump (6) are both fixedly mounted on a support frame (18); the output end of the first delivery pump (5) is fixedly connected to one end of a first delivery pipe (7); the output end of the second delivery pump (6) is fixedly connected to one end of a second delivery pipe (8); the other end of the first delivery pipe (7) is fixedly connected to one end of a first detection pipe (9), one end of a first reflux pipe (10), and one end of a first dosing branch pipe (11). fixedly connected; the other end of the second delivery pipe (8) is respectively fixedly connected to one end of the second detection pipe (12), one end of the second return pipe (13), and one end of the second dosing pipe (14); the other end of the first detection pipe (9) is connected to the first pressure gauge (15); the other end of the second detection pipe (12) is connected to the second pressure gauge (16); the other end of the first return pipe (10) is arranged on the first drug outlet pipe (3) and is communicated with the first drug outlet pipe (3); the other end of the second return pipe (13) is arranged on the second drug outlet pipe (4) and is communicated with the second drug outlet pipe (4); the other end of the first dosing pipe (11) and the other end of the second dosing pipe (14) are both fixedly connected to one end of the dosing pipe (17); the other end of the dosing pipe (17) is communicated with the wastewater pool to which ferric chloride needs to be added.

[0008] Furthermore: a first solenoid valve (19) is provided on the first return pipe (10).

[0009] Furthermore, a second electromagnetic valve (20) is provided on the first drug dosing pipe (11).

[0010] Furthermore, a third electromagnetic valve (21) is provided on the second drug dosing pipe (14).

[0011] Furthermore, a fourth electromagnetic valve (22) is provided on the second return pipe (13).

[0012] Furthermore, a flow meter (23) is provided on the drug dosing pipe (17).

[0013] Furthermore, the first delivery pump (5), the second delivery pump (6), the first pressure gauge (15), the second pressure gauge (16), the flow meter (23), the first solenoid valve (19), the second solenoid valve (20), the third solenoid valve (21) and the fourth solenoid valve (22) are all electrically connected to the control cabinet.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The first pressure gauge is used to monitor the pipeline pressure in the ferric chloride dosing system in real time and feed it back to the control cabinet for control, thereby improving the safety of the ferric chloride dosing system operation, preventing safety accidents, and thus improving the efficiency of ferric chloride dosing;

[0016] 2. The ferric chloride agent in the first delivery pipe is refluxed to the first drug outlet pipe through the first reflux pipe, thereby avoiding excessive pressure in each pipeline of the ferric chloride dosing system, improving the safety of the ferric chloride dosing system operation, preventing safety accidents from occurring, and thus improving the efficiency of ferric chloride dosing;

[0017] 3. By arranging a first solenoid valve on the first reflux pipe, a second solenoid valve on the first dosing branch pipe, a third solenoid valve on the second dosing branch pipe, and a fourth solenoid valve on the second reflux pipe, the ferric chloride dosage in the first reflux pipe, the first dosing branch pipe, the second dosing branch pipe, and the second reflux pipe can be quickly adjusted in real time, thereby improving the efficiency of ferric chloride addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A three-dimensional diagram of a ferric chloride dosing system provided by an embodiment of the present utility model is shown;

[0020] Figure 2 A front view of a ferric chloride dosing system provided by an embodiment of the present utility model is shown;

[0021] Figure 3 Shows a left view of a ferric chloride dosing system provided by an embodiment of the utility model;

[0022] Figure 4 Shows a right side view of a ferric chloride dosing system provided by an embodiment of the present utility model;

[0023] Figure 5 A top view of a ferric chloride dosing system provided by an embodiment of the present utility model is shown;

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Medicine tank; 2. Medicine outlet pipe; 3. First medicine outlet branch pipe; 4. Second medicine outlet branch pipe; 5. First delivery pump; 6. Second delivery pump; 7. First delivery pipe; 8. Second delivery pipe; 9. First detection pipe; 10. First return pipe; 11. First dosing branch pipe; 12. Second detection pipe; 13. Second return pipe; 14. Second dosing branch pipe; 15. First pressure gauge; 16. Second pressure gauge; 17. Dosing pipe; 18. Support frame; 19. First solenoid valve; 20. Second solenoid valve; 21. Third solenoid valve; 22. Fourth solenoid valve; 23. Flow meter. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features limited to "first", "second" and the like may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figure 1-Figure 5 As shown, a ferric chloride dosing system comprises:

[0030] Medicine tank 1, the bottom end of medicine tank 1 is fixedly connected to one end of medicine outlet pipe 2; the other end of medicine outlet pipe 2 is fixedly connected to one end of first medicine outlet branch pipe 3 and one end of second medicine outlet branch pipe 4 respectively; the other end of first medicine outlet branch pipe 3 is fixedly connected to the input end of first delivery pump 5; the other end of second medicine outlet branch pipe 4 is fixedly connected to the input end of second delivery pump 6; the first delivery pump 5 and the second delivery pump 6 are both fixedly mounted on the support frame 18; the output end of the first delivery pump 5 is fixedly connected to one end of the first delivery pipe 7; the output end of the second delivery pump 6 is fixedly connected to one end of the second delivery pipe 8; the other end of the first delivery pipe 7 is fixedly connected to one end of the first detection pipe 9, one end of the first reflux pipe 10 and one end of the first dosing branch pipe 11 respectively; the other end of the second delivery pipe 8 is fixedly connected to one end of the second detection pipe 12, one end of the second reflux pipe 13 and one end of the second dosing branch pipe 14 respectively;

[0031] The other end of the first detection tube 9 is connected to the first pressure gauge 15; the other end of the second detection tube 12 is connected to the second pressure gauge 16; according to the embodiment of the utility model, the pipeline pressure in the ferric chloride dosing system is monitored in real time by the first pressure gauge, and the pressure is fed back to the control cabinet for control, thereby improving the safety of the ferric chloride dosing system operation, preventing safety accidents from occurring, and thus improving the efficiency of ferric chloride dosing;

[0032] The other end of the first reflux pipe 10 is arranged on the first drug outlet branch pipe 3 and is communicated with the first drug outlet branch pipe 3; the other end of the second reflux pipe 13 is arranged on the second drug outlet branch pipe 4 and is communicated with the second drug outlet branch pipe 4; according to the embodiment of the utility model, the ferric chloride agent in the first delivery pipe is refluxed to the first drug outlet branch pipe through the first reflux pipe, thereby avoiding excessive pressure in each pipeline of the ferric chloride dosing system, improving the safety of the operation of the ferric chloride dosing system, preventing safety accidents from occurring, and thereby improving the efficiency of ferric chloride dosing;

[0033] The other end of the first dosing branch pipe 11 and the other end of the second dosing branch pipe 14 are fixedly connected to one end of the dosing pipe 17; the other end of the dosing pipe 17 is connected to the wastewater pool to which ferric chloride needs to be added;

[0034] A first solenoid valve 19 is provided on the first reflux pipe 10; a second solenoid valve 20 is provided on the first dosing branch pipe 11; a third solenoid valve 21 is provided on the second dosing branch pipe 14; and a fourth solenoid valve 22 is provided on the second reflux pipe 13. According to an embodiment of the present invention, by providing the first solenoid valve on the first reflux pipe, the second solenoid valve on the first dosing branch pipe, the third solenoid valve on the second dosing branch pipe, and the fourth solenoid valve on the second reflux pipe, the ferric chloride agent in the first reflux pipe, the first dosing branch pipe, the second dosing branch pipe, and the second reflux pipe can be quickly adjusted in real time, thereby improving the efficiency of ferric chloride addition.

[0035] A flow meter 23 is provided on the dosing tube 17; according to the embodiment of the present invention, by providing a flow meter on the dosing tube, the flow state of the dosing tube is monitored in real time and fed back to the control cabinet, thereby realizing rapid adjustment of the flow rate of the ferric chloride agent in the dosing tube, thereby improving the efficiency of ferric chloride dosing;

[0036] The first delivery pump 5 , the second delivery pump 6 , the first pressure gauge 15 , the second pressure gauge 16 , the flow meter 23 , the first solenoid valve 19 , the second solenoid valve 20 , the third solenoid valve 21 and the fourth solenoid valve 22 are all electrically connected to the control cabinet.

[0037] Working principle 1: When in use, the control cabinet controls the first delivery pump 5 to start; the ferric chloride agent in the medicine tank 1 enters the first delivery pump 5 through the medicine outlet pipe 2 and the first medicine outlet branch pipe 3 in turn, and is respectively delivered to the first detection pipe 9, the first reflux pipe 10, and the first dosing branch pipe 11 through the first delivery pipe 7; while the control cabinet controls the first delivery pump 5 to start, it also controls the second delivery pump 6 to start; the ferric chloride agent in the medicine tank 1 enters the second delivery pump 6 through the medicine outlet pipe 2 and the second medicine outlet branch pipe 4 in turn, and is respectively delivered to the second detection pipe 12, the second reflux pipe 13, and the second dosing branch pipe 11 through the second delivery pipe 8. 14; the ferric chloride agent in the first reflux pipe 10 flows back to the first drug outlet branch pipe 3; the ferric chloride agent in the second reflux pipe 13 flows back to the second drug outlet branch pipe 4; the ferric chloride agent in the first dosing branch pipe 11 and the second dosing branch pipe 14 merge into the dosing pipe 17 and are added to the wastewater pool; during the dosing process, the control cabinet adjusts the operating frequency of the first delivery pump 5 and the second delivery pump 6 or adjusts the opening of the first solenoid valve 19, the second solenoid valve 20, the third solenoid valve 21 and the fourth solenoid valve 22 according to the readings of the first pressure gauge 15, the second pressure gauge 16 and the flow meter 23.

[0038] Working principle 2: When in use, the control cabinet controls the first delivery pump 5 to start; the ferric chloride agent in the medicine tank 1 enters the first delivery pump 5 through the medicine outlet pipe 2 and the first medicine outlet branch pipe 3 in turn, and is respectively delivered to the first detection tube 9, the first reflux pipe 10, and the first dosing branch pipe 11 through the first delivery pipe 7; the ferric chloride agent in the first reflux pipe 10 flows back to the first medicine outlet branch pipe 3; the ferric chloride agent in the first dosing branch pipe 11 enters the dosing pipe 17 and is added to the wastewater pool; during the dosing process, the control cabinet adjusts the operating frequency of the first delivery pump 5 or adjusts the opening of the first solenoid valve 19 and the second solenoid valve 20 according to the readings of the first pressure gauge 15 and the flowmeter 23.

[0039] Working principle three: When in use, the control cabinet controls the start-up of the second delivery pump 6; the ferric chloride agent in the medicine tank 1 enters the second delivery pump 6 through the medicine outlet pipe 2 and the second medicine outlet branch pipe 4 in turn, and is respectively delivered to the second detection tube 12, the second reflux pipe 13, and the second dosing branch pipe 14 through the second delivery pipe 8; the ferric chloride agent in the second reflux pipe 13 flows back to the second medicine outlet branch pipe 4; the ferric chloride agent in the second dosing branch pipe 14 enters the dosing pipe 17 and is added to the wastewater pool; during the dosing process, the control cabinet adjusts the operating frequency of the second delivery pump 6 or adjusts the opening of the third solenoid valve 21 and the fourth solenoid valve 22 according to the readings of the second pressure gauge 16 and the flow meter 23.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will also have various changes and improvements, and these changes and improvements will fall within the scope of the utility model to be protected.

Claims

1. A ferric chloride dosing system, comprising a medicine tank (1), characterized in that: The bottom end of the medicine tank (1) is fixedly connected to one end of the medicine outlet pipe (2); the other end of the medicine outlet pipe (2) is fixedly connected to one end of the first medicine outlet branch pipe (3) and one end of the second medicine outlet branch pipe (4); the other end of the first medicine outlet branch pipe (3) is fixedly connected to the input end of the first delivery pump (5); the other end of the second medicine outlet branch pipe (4) is fixedly connected to the input end of the second delivery pump (6); the first delivery pump (5) and the second delivery pump (6) are both fixedly mounted on the support frame (18); the output end of the first delivery pump (5) is fixedly connected to one end of the first delivery pipe (7); the output end of the second delivery pump (6) is fixedly connected to one end of the second delivery pipe (8); the other end of the first delivery pipe (7) is fixedly connected to one end of the first detection pipe (9), one end of the first reflux pipe (10), and one end of the first dosing branch pipe (11). The other end of the second delivery pipe (8) is fixedly connected to one end of the second detection pipe (12), one end of the second return pipe (13), and one end of the second drug dosing pipe (14); the other end of the first detection pipe (9) is connected to the first pressure gauge (15); the other end of the second detection pipe (12) is connected to the second pressure gauge (16); the other end of the first return pipe (10) is arranged on the first drug outlet pipe (3) and is communicated with the first drug outlet pipe (3); the other end of the second return pipe (13) is arranged on the second drug outlet pipe (4) and is communicated with the second drug outlet pipe (4); the other end of the first drug dosing pipe (11) and the other end of the second drug dosing pipe (14) are fixedly connected to one end of the drug dosing pipe (17); the other end of the drug dosing pipe (17) is communicated with the wastewater pool to which ferric chloride needs to be added.

2. Ferric chloride dosing system according to claim 1, is characterized in that: A first electromagnetic valve (19) is provided on the first return pipe (10).

3. Ferric chloride dosing system according to claim 2, is characterized in that: The first drug dosing pipe (11) is provided with a second electromagnetic valve (20).

4. Ferric chloride dosing system according to claim 3, is characterized in that: The second drug dosing pipe (14) is provided with a third electromagnetic valve (21).

5. Ferric chloride dosing system according to claim 4, is characterized in that: A fourth solenoid valve (22) is provided on the second return pipe (13).

6. The ferric chloride dosing system according to claim 5, wherein: The drug dosing pipe (17) is provided with a flow meter (23).

7. The ferric chloride dosing system according to claim 6, wherein: The first delivery pump (5), the second delivery pump (6), the first pressure gauge (15), the second pressure gauge (16), the flow meter (23), the first solenoid valve (19), the second solenoid valve (20), the third solenoid valve (21) and the fourth solenoid valve (22) are all electrically connected to the control cabinet.

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