Liquid medicine mixing device for sewage treatment

Abstract

The invention belongs to the technical field of sewage disinfection, and discloses a liquid medicine mixing device for sewage treatment, which comprises a disinfection tank, a fixed tank, a water inlet pipe and a feed pipe, the lower end surface of the water inlet pipe is communicated with a plurality of branch pipes, one end of each branch pipe is communicated with a second annular pipe, one side of the feed pipe is communicated with a first annular pipe, and the liquid medicine mixing device further comprises a mixing mechanism, comprising a floating ball, a stirring assembly and a connecting pipe, the outer wall of the connecting pipe communicates with a mixing pipe, and a first Tesla valve and a second Tesla valve which are opposite in direction are installed on the inner wall of the mixing pipe; the first Tesla valve promotes mixing while reducing the flow rate of the mixed liquid, the second Tesla valve accelerates the flow of the mixed liquid, the mixed liquid flows out of the tail end of the mixing pipe and impacts each other for further mixing, and meanwhile, the floating ball drives the stirring assembly to stir the mixed liquid just flowing into the disinfection tank along with the rising of the water level; the backflow mechanism comprises a water pump and a monitoring assembly. The sewage disinfection device solves the problem that when an existing device disinfects sewage, a disinfectant and the sewage cannot be uniformly mixed.

Description

Technical Field

[0001] The invention relates to the technical field of sewage disinfection, in particular to a liquid medicine mixing device for sewage treatment. Background Art

[0002] Sewage disinfection is to kill pathogenic microorganisms in domestic sewage or certain industrial wastewater by adding disinfectants to prevent the spread of diseases. In the conventional treatment process, sewage usually needs to be disinfected after mechanical treatment and biochemical secondary treatment. The existing sewage disinfection method usually adds a certain amount of disinfectant from the top of the sewage pool, and disinfection is achieved through the contact reaction between the disinfectant and the sewage.

[0003] However, after the disinfectant is added to the sewage pool, the existing disinfection device reacts with a large amount of sewage, resulting in a slow diffusion rate of the disinfectant and failure to be uniformly mixed with the sewage. In order to solve this problem, we propose a liquid mixing device for sewage treatment. Summary of the invention

[0004] The purpose of the present invention is to provide a liquid medicine mixing device for sewage treatment, which solves the problem that the disinfectant and sewage cannot be evenly mixed when the existing device disinfects the sewage.

[0005] To achieve the above object, the present invention provides the following technical solution: a liquid medicine mixing device for sewage treatment, comprising a disinfection tank and a fixed tank, and a water inlet pipe and a feed pipe located above the fixed tank, wherein the lower end surface of the water inlet pipe is connected with a plurality of branch pipes, the branch pipe is connected with a second annular pipe at one end away from the water inlet pipe, and the feed pipe is connected with a first annular pipe at one side, and further comprising:

[0006] The mixing mechanism includes a floating ball, a stirring assembly and a plurality of connecting pipes, wherein the two ends of the connecting pipe are respectively connected to the second annular pipe and the first annular pipe, the outer wall of the connecting pipe is connected to a mixing pipe, and the inner wall of the mixing pipe is installed with a first Tesla valve and a second Tesla valve in opposite directions; the disinfectant and sewage in the first annular pipe and the second annular pipe enter the connecting pipe for mixing, and the mixed liquid flows into the mixing pipe, the first Tesla valve reduces the flow rate of the mixed liquid while promoting mixing, the second Tesla valve accelerates the flow rate of the mixed liquid, and the accelerated mixed liquid flows out from the end of the mixing pipe and impacts each other, so that it is further mixed, and at the same time, the floating ball drives the stirring assembly to stir the mixed liquid that has just flowed into the disinfection tank as the water level rises;

[0007] The reflux mechanism includes a water pump and a monitoring component. The lower end of the water pump is connected to a first water suction pipe, and the side of the water pump away from the first water suction pipe is connected to a branch pipe. After the mixed liquid enters the disinfection tank, the monitoring component monitors the sewage process in real time, and the water pump drives the mixed liquid to flow back to the mixing mechanism, thereby achieving re-mixing.

[0008] Preferably, a plurality of support rods are evenly mounted on the lower end surface of the second annular tube, and the support rods are mounted on the sterilization tank at a side away from the second annular tube.

[0009] Preferably, the fixed tank is communicated with the mixing pipe, and the lower end surface of the fixed tank is mounted on the disinfection tank.

[0010] Preferably, the monitoring component includes a residual chlorine sensor installed below the floating ball, the interior of the floating ball is hollow, a second water suction pipe is installed on the inner wall of the floating ball, and the upper end surface of the floating ball is connected to the first water suction pipe.

[0011] Preferably, a fourth valve is installed on the inner wall of the second water suction pipe.

[0012] Preferably, a water outlet pipe is installed on the lower end surface of the disinfection tank.

[0013] Preferably, the stirring assembly comprises a servo motor, the output shaft of the servo motor is mounted with a first pulley, the outer wall of the first pulley is sleeved with a belt, and the inner wall of the belt away from the first pulley is sleeved with a second pulley.

[0014] Preferably, round rods are fixedly installed on the upper end surfaces of the first pulley and the second pulley passing through the sterilizing tank, and limiting rods are symmetrically fixedly installed on the outer walls of the round rods, and stirring rods are slidably installed on the outer walls of the limiting rods.

[0015] Preferably, a cylinder is rotatably mounted on the upper end surface of the stirring rod, a connecting rod is mounted on the outer wall of the cylinder, and the connecting rod is fixedly mounted on the outer wall of the floating ball at a side away from the cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a mixing mechanism. The disinfectant and sewage enter the interior of the connecting pipe from the first annular pipe and the second annular pipe respectively, so that the disinfectant and sewage can be mixed in real time. At the same time, the reversely arranged first Tesla valve decelerates the mixed liquid, thereby increasing the reaction time of the disinfectant and sewage. When the mixed liquid passes through the first Tesla valve, turbulence and vortex are generated, thereby improving the mixing effect of the mixed liquid. At the same time, the second Tesla valve accelerates the mixed liquid, so that the mixed liquid can impact each other in the fixed tank, thereby achieving further mixing.

[0018] 2. The present invention is provided with a reflux mechanism, and the floating ball can rise with the mixed liquid in the disinfection tank, driving the residual chlorine sensor to monitor the sewage disinfection situation in real time, so as to adjust the amount of disinfectant added, and when the water pump is working, the mixed liquid enters the floating ball through the second water suction pipe, and the floating ball begins to descend. When the floating ball is filled, it falls to the bottom of the disinfection tank, and the mixed liquid enters the second annular tube from the first water suction pipe, and the mixed liquid in the second annular tube enters the mixing tube through the connecting pipe, so that the mixed liquid is mixed again.

[0019] 3. The present invention is provided with a stirring mechanism. When the servo motor drives the first pulley to rotate slowly, the first pulley drives the second pulley to rotate through the belt, the first pulley and the second pulley drive the round rod to rotate, and the round rod drives the stirring rod to rotate through the limiting rod. At this time, the buoyancy of the floating ball can drive the stirring rod to rise on the limiting rod through the connecting rod and the cylinder, and the stirring rod can stir the mixed liquid that has just flowed into the disinfection tank from the mixing tube to make it fully mixed again. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is another perspective schematic diagram of the present invention;

[0022] Figure 3 It is a cross-sectional view of the present invention;

[0023] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0024] Figure 5 A cross-sectional view of a mixing tube of the present invention;

[0025] Figure 6 for Figure 3 The enlarged schematic diagram of point B in the middle;

[0026] Figure 7 This is a schematic diagram of the interior of the sterilizing tank of the present invention;

[0027] Figure 8 It is a schematic diagram of the liquid flow direction inside the mixing tube of the present invention.

[0028] In the figure: 1, water inlet pipe; 101, first valve; 2, first annular pipe; 3, feed pipe; 4, branch pipe; 5, mixing pipe; 6, disinfection tank; 7, connecting pipe; 8, second annular pipe; 9, support rod; 10, fixed tank; 11, water pump; 1101, second valve; 12, support plate; 13, first pulley; 14, servo motor; 15, water outlet pipe; 16, belt; 17, second pulley; 18, third valve; 19, first Tesla valve; 20, second Tesla valve; 21, first water suction pipe; 22, floating ball; 23, second water suction pipe; 24, fourth valve; 25, residual chlorine sensor; 26, cylinder; 27, stirring rod; 28, round rod; 29, limit rod; 30, connecting rod; 31, retaining ring. DETAILED DESCRIPTION

[0029] See also Figures 1 to 8The present invention provides a technical solution: a liquid medicine mixing device for sewage treatment, comprising a disinfection tank 6 and a fixed tank 10, and a water inlet pipe 1 and a feed pipe 3 located above the fixed tank 10, wherein the lower end surface of the water inlet pipe 1 is connected with a plurality of branch pipes 4, and the branch pipe 4 is connected with a second annular pipe 8 at one end away from the water inlet pipe 1, and the feed pipe 3 is connected with a first annular pipe 2 at one side, and further comprising:

[0030] The mixing mechanism includes a floating ball 22, a stirring assembly and a plurality of connecting pipes 7, wherein the two ends of the connecting pipe 7 are respectively connected to the second annular pipe 8 and the first annular pipe 2, the outer wall of the connecting pipe 7 is connected to a mixing pipe 5, and the inner wall of the mixing pipe 5 is installed with a first Tesla valve 19 and a second Tesla valve 20 in opposite directions; the disinfectant and sewage in the first annular pipe 2 and the second annular pipe 8 enter the connecting pipe 7 and mix, and the mixed liquid flows into the mixing pipe 5, the first Tesla valve 19 reduces the flow rate of the mixed liquid while promoting mixing, the second Tesla valve 20 accelerates the flow rate of the mixed liquid, and the accelerated mixed liquid flows out from the end of the mixing pipe 5 and impacts each other, so that it is further mixed, and at the same time, the floating ball 22 drives the stirring assembly to stir the mixed liquid that has just flowed into the disinfection tank 6 as the water level rises;

[0031] The reflux mechanism includes a water pump 11 and a monitoring component. The lower end of the water pump 11 is connected to a first water suction pipe 21, and the side of the water pump 11 away from the first water suction pipe 21 is connected to the branch pipe 4. After the mixed liquid enters the disinfection tank 6, the monitoring component monitors the sewage process in real time, and the water pump 11 drives the mixed liquid to flow back to the mixing mechanism, thereby achieving re-mixing.

[0032] Furthermore, the first water suction pipe 21 is a telescopic pipe.

[0033] Further, such as Figure 1 As shown, a plurality of support rods 9 are evenly installed on the lower end surface of the second annular tube 8, and the support rods 9 are installed on the disinfection tank 6 away from the side of the second annular tube 8;

[0034] The support rod 9 supports the second annular tube 8 to make it more stable.

[0035] Further, such as Figure 3 As shown, the fixed tank 10 is connected to the mixing pipe 5, and the lower end surface of the fixed tank 10 is installed on the disinfection tank 6. The connection between the fixed tank 10 and the disinfection tank 6 is in the shape of an inverted trumpet, which gradually shrinks;

[0036] The mixed liquid in the mixing tube 5 enters the fixed tank 10, impacts each other, and is mixed again.

[0037] Further, such as Figure 3 , Figure 6 and Figure 7As shown, the monitoring assembly includes a residual chlorine sensor 25 installed below a floating ball 22. The interior of the floating ball 22 is hollow. A second water suction pipe 23 is installed on the inner wall of the floating ball 22. The upper end surface of the floating ball 22 is connected to the first water suction pipe 21. A fourth valve 24 is installed on the inner wall of the second water suction pipe 23.

[0038] When the fourth valve 24 is closed, the mixed liquid will not enter the floating ball 22. At this time, as the mixed liquid increases, the floating ball 22 drives the residual chlorine sensor 25 to rise, so that the disinfectant concentration of the current sewage can be monitored in real time and the amount of disinfectant added can be controlled;

[0039] When the fourth valve 24 is opened, the water pump 11 works, and the second water suction pipe 23 allows the mixed liquid to enter the floating ball 22. As the amount of water increases, the floating ball 22 drops to the bottom of the disinfection tank 6, and the mixed liquid inside the disinfection tank 6 enters the second annular tube 8 through the first water suction pipe 21, and is mixed again through the mixing tube 5.

[0040] Further, such as Figure 3 As shown, a water outlet pipe 15 is installed on the lower end surface of the disinfection tank 6, and a valve is installed on the inner wall of the water outlet pipe 15; it is used to discharge the sewage after disinfection.

[0041] Further, such as Figure 3 and Figure 4 As shown, a first valve 101 is installed on the inner wall of the water inlet pipe 1, which is used for opening and closing the water inlet pipe 1 and controlling the sewage flow; a second valve 1101 is installed at the connection between the water pump 11 and the branch pipe 4, which is used for opening and closing the water pump 11 and the branch pipe 4.

[0042] Furthermore, the first valve 101, the second valve 1101, the third valve 18 and the fourth valve 24 are all solenoid valves, which are prior art.

[0043] Further, such as Figure 2 As shown, the stirring assembly includes a servo motor 14, the output shaft of the servo motor 14 is mounted with a first pulley 13, the outer wall of the first pulley 13 is sleeved with a belt 16, and the inner wall of the belt 16 away from the first pulley 13 is sleeved with a second pulley 17;

[0044] The servo motor 14 rotates, driving the first belt pulley 13 to rotate, and the first belt pulley 13 drives the second belt pulley 17 to rotate through the belt 16 .

[0045] Further, such as Figure 7As shown, the upper end surfaces of the first pulley 13 and the second pulley 17 penetrate the sterilizing tank 6 and are fixedly installed with round rods 28, the outer wall of the round rods 28 is symmetrically fixedly installed with limit rods 29, the outer wall of the limit rods 29 is slidably installed with stirring rods 27, and the upper ends of the round rods 28 are rotatably connected to the sterilizing tank 6;

[0046] The first belt pulley 13 and the second belt pulley 17 drive the round rod 28 to rotate, and the round rod 28 drives the stirring rod 27 to rotate through the limiting rod 29 to stir the mixed liquid.

[0047] Further, such as Figure 2 As shown, a cylinder 26 is rotatably mounted on the upper end surface of the stirring rod 27, a connecting rod 30 is mounted on the outer wall of the cylinder 26, and the connecting rod 30 is fixedly mounted on the outer wall of the floating ball 22 away from the side of the cylinder 26, and the inner diameter of the cylinder 26 is larger than the outer diameter of the limiting rod 29;

[0048] When the floating ball 22 rises with the mixed liquid, the stirring rod 27 is driven to rise through the connecting rod 30 and the cylinder 26. At this time, the mixed liquid flowing from the mixing tube 5 into the disinfection tank 6 can be stirred in time to promote mixing.

[0049] Further, such as Figure 2 As shown, a plurality of supporting legs are installed on the lower end surface of the sterilizing tank 6 to support the sterilizing tank 6 .

[0050] Further, such as Figure 2 As shown, a support plate 12 is installed on the lower end surface of the servo motor 14 , and the support plate 12 is fixedly installed on the lower end surface of the sterilizing tank 6 for fixing the servo motor 14 .

[0051] Further, such as Figure 7 As shown, a retaining ring 31 is sleeved on the outer wall of the round rod 28 close to the servo motor 14;

[0052] When the floating ball 22 is filled with the mixed liquid, the stirring rod 27 is driven to descend, and the stirring rod 27 abuts against the retaining ring 31, so that the floating ball 22 can maintain a certain distance from the inner wall of the disinfection tank 6, which is convenient for drainage and can prevent the residual chlorine sensor 25 from being damaged by collision.

[0053] Working principle: Step 1: Connect the power supply and controller, then connect the disinfectant pipe (here liquid chlorine is used as an example) through the feed pipe 3, and connect the water inlet pipe 1 to the sewage pipe. At this time, the third valve 18 and the first valve 101 are opened, and the disinfectant enters the connecting pipe 7 from the first annular pipe 2, and the sewage enters the connecting pipe 7 from the branch pipe 4 and the second annular pipe 8. At this time, the disinfectant and sewage enter the mixing pipe 5. Figure 8As shown, due to the provision of the first Tesla valve 19, the mixed liquid of the disinfectant and sewage will flow slowly in the first Tesla valve 19, increasing the mixing time, and turbulence and vortexes will be generated when the mixed liquid passes through the first Tesla valve 19, thereby improving the mixing effect. At the same time, the first Tesla valve 19 is set shorter to prevent a large impact on the water flow rate. When the mixed liquid flows to the second Tesla valve 20, the second Tesla valve 20 accelerates the mixed liquid. At this time, the mixed liquid in the mixing tube 5 enters the fixed tank 10 from different directions. Since the opening at the bottom of the fixed tank 10 gradually shrinks, the mixed liquids impact each other at this time and are mixed again.

[0054] Step 2: As the mixed liquid is injected into the disinfection tank 6, since the interior of the floating ball 22 is hollow and the fourth valve 24 is closed, the floating ball 22 will rise, and the floating ball 22 drives the residual chlorine sensor 25 to rise. The residual chlorine sensor 25 monitors the mixed liquid in real time. At this time, the opening degree of the third valve 18 can be adjusted according to the actual situation to adjust the amount of disinfectant added to improve the disinfection effect;

[0055] At the same time, the servo motor 14 is controlled to drive the first pulley 13 to rotate slowly, the first pulley 13 drives the second pulley 17 to rotate through the belt 16, the first pulley 13 and the second pulley 17 drive the round rod 28 to rotate, and the round rod 28 drives the stirring rod 27 to rotate through the limit rod 29. Since the rotation is slow at this time, the friction between the stirring rod 27 and the limit rod 29 is small. At this time, the buoyancy of the floating ball 22 can drive the stirring rod 27 to rise on the limit rod 29 through the connecting rod 30 and the cylinder 26, and the stirring rod 27 can stir the mixed liquid that has just flowed into the disinfection tank 6 from the mixing tube 5, so that it is fully mixed again;

[0056] Step 3: When the mixed liquid fills the disinfection tank 6, the first valve 101 and the third valve 18 are closed, and the second valve 1101 and the fourth valve 24 are opened, the water pump 11 starts to work, and the mixed liquid enters the floating ball 22 through the second water suction pipe 23. At this time, the floating ball 22 starts to drop and stretches the first water suction pipe 21. When the floating ball 22 is filled, the mixed liquid enters the second annular tube 8 from the first water suction pipe 21. The mixed liquid in the second annular tube 8 enters the mixing tube 5 through the connecting pipe 7, so that the mixed liquid is mixed again;

[0057] When the floating ball 22 descends, the servo motor 14 stops working, and the floating ball 22 drives the stirring rod 27 to descend through the connecting rod 30. When it reaches the lowest part, the servo motor 14 is restarted to stir the deepest part of the mixed liquid. At this time, the speed of the servo motor 14 can be increased to accelerate the stirring.

[0058] Step 4: When the disinfection is completed and it is necessary to discharge, the water pump 11 stops working, and the mixed liquid is discharged by opening the outlet pipe 15. The mixed liquid in the floating ball 22 will be discharged, and then the second valve 1101 and the fourth valve 24 are closed again, waiting for the next sewage disinfection.

[0059] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid medicine mixing device for sewage treatment, comprising a disinfection tank (6) and a fixed tank (10), and a water inlet pipe (1) and a feed pipe (3) located above the fixed tank (10), wherein the lower end surface of the water inlet pipe (1) is connected to a plurality of branch pipes (4), and the branch pipe (4) is connected to a second annular pipe (8) at one end away from the water inlet pipe (1), and the feed pipe (3) is connected to a first annular pipe (2) at one side, characterized in that: Also includes: The mixing mechanism comprises a floating ball (22), a stirring assembly and a plurality of connecting pipes (7), wherein the two ends of the connecting pipe (7) are respectively connected to the second annular pipe (8) and the first annular pipe (2), the outer wall of the connecting pipe (7) is connected to a mixing pipe (5), and the inner wall of the mixing pipe (5) is provided with a first Tesla valve (19) and a second Tesla valve (20) in opposite directions; the disinfectant and sewage in the first annular pipe (2) and the second annular pipe (8) enter the connecting pipe (7) to mix, and the mixed liquid flows into the mixing pipe (5), the first Tesla valve (19) reduces the flow rate of the mixed liquid while promoting mixing, the second Tesla valve (20) accelerates the flow rate of the mixed liquid, and the accelerated mixed liquid flows out from the end of the mixing pipe (5) to impact each other, so as to be further mixed, and at the same time the floating ball (22) drives the stirring assembly to stir the mixed liquid just flowing into the disinfection tank (6) as the water level rises; The reflux mechanism comprises a water pump (11) and a monitoring component, wherein the lower end of the water pump (11) is connected to a first water suction pipe (21), and the side of the water pump (11) away from the first water suction pipe (21) is connected to a branch pipe (4); after the mixed liquid enters the disinfection tank (6), the monitoring component monitors the sewage process in real time, and the water pump (11) drives the mixed liquid to flow back to the mixing mechanism, thereby achieving re-mixing.

2. A liquid medicine mixing device for sewage treatment according to claim 1, characterized in that: A plurality of support rods (9) are evenly mounted on the lower end surface of the second annular tube (8), and the support rods (9) are mounted on the sterilizing tank (6) at a side away from the second annular tube (8).

3. A liquid medicine mixing device for sewage treatment according to claim 1, characterized in that: The fixed tank (10) is communicated with the mixing pipe (5), and the lower end surface of the fixed tank (10) is mounted on the sterilizing tank (6).

4. A liquid medicine mixing device for sewage treatment according to claim 1, characterized in that: The monitoring assembly comprises a residual chlorine sensor (25) installed below a floating ball (22); the interior of the floating ball (22) is hollow; a second water suction pipe (23) is installed on the inner wall of the floating ball (22); and the upper end surface of the floating ball (22) is connected to the first water suction pipe (21).

5. A liquid medicine mixing device for sewage treatment according to claim 4, characterized in that: A fourth valve (24) is installed on the inner wall of the second water suction pipe (23).

6. A liquid medicine mixing device for sewage treatment according to claim 1, characterized in that: A water outlet pipe (15) is installed on the lower end surface of the disinfection tank (6).

7. A liquid medicine mixing device for sewage treatment according to claim 1, characterized in that: The stirring assembly comprises a servo motor (14), the output shaft of the servo motor (14) is mounted with a first pulley (13), the outer wall of the first pulley (13) is sleeved with a belt (16), and the inner wall of the belt (16) away from the first pulley (13) is sleeved with a second pulley (17).

8. A liquid medicine mixing device for sewage treatment according to claim 7, characterized in that: A round rod (28) is fixedly mounted on the upper end surfaces of the first pulley (13) and the second pulley (17) and passes through the sterilizing tank (6). A limiting rod (29) is symmetrically fixedly mounted on the outer wall of the round rod (28). A stirring rod (27) is slidably mounted on the outer wall of the limiting rod (29).

9. A liquid medicine mixing device for sewage treatment according to claim 8, characterized in that: A cylinder (26) is rotatably mounted on the upper end surface of the stirring rod (27), a connecting rod (30) is mounted on the outer wall of the cylinder (26), and the connecting rod (30) is fixedly mounted on the outer wall of the floating ball (22) at a side away from the cylinder (26).

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