A dosing sewage treatment device for sewage treatment

Abstract

The application discloses a dosing sewage treatment device for sewage treatment, and belongs to the technical field of sewage treatment. The dosing sewage treatment device is provided with a medicine water preparation cavity and a dosing mechanism. Before sewage is treated, clean water used for preparing medicine water is injected into the preparation cavity, then a ball is rotated, medicine flowing into the ball groove is guided out of the medicine injection cavity under the rotation of the ball, and falls into the clean water under the action of gravity. The high-concentration medicine and the clean water are premixed in the preparation cavity to prepare low-concentration medicine water. Since the preparation cavity stores clean water, the medicine does not contact the sewage in advance to generate flocculation. Since the concentration of the medicine water is lower than that of the medicine, the density difference between the medicine water and the sewage is reduced, and the dispersion and uneven mixing caused by the large concentration difference are avoided, and the possibility of generating flocculation before stirring is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, especially to a dosing sewage treatment device for sewage treatment. BACKGROUND

[0002] The sewage treatment device is a complete equipment integrating dosing, stirring, liquid conveying and automatic control functions, wherein the dosing sewage treatment device is a device for adding medicaments into sewage to improve water quality and treatment effect in the sewage treatment process, mainly used for adding various medicaments such as flocculants, disinfectants, pH regulators into sewage to improve water quality, remove harmful substances and improve water utilization rate.

[0003] In actual use, the traditional dosing method is mostly to add a fixed amount of medicaments at one time, and then mix the medicaments and sewage through stirring. Before stirring, although the medicaments have not been uniformly dispersed in the sewage, the medicaments that first contact with the sewage have reacted with the substances in the water. At this time, the flocculation formed in the sewage is sheared and degraded again by the high-speed rotating blades, and the flocculation cannot be cleaned in time, resulting in secondary pollution.

[0004] In addition, when the medicaments are directly injected, the concentration is too high, and there is a large concentration difference between the medicaments and the sewage, which easily causes dispersion and uneven mixing. In the case of slow mixing speed, the flocculation is more likely to occur in the sewage that contacts with the high-concentration medicaments. SUMMARY

[0005] The purpose of the present application is to solve the problem that the traditional dosing method is mostly to add a fixed amount of medicaments at one time, and then mix the medicaments and sewage through stirring. Before stirring, although the medicaments have not been uniformly dispersed in the sewage, the medicaments that first contact with the sewage have reacted with the substances in the water. At this time, the flocculation formed in the sewage is sheared and degraded again by the high-speed rotating blades, and the flocculation cannot be cleaned in time, resulting in secondary pollution. A dosing sewage treatment device for sewage treatment is proposed.

[0006] In order to achieve the above purpose, the present application adopts the following technical dosing sewage treatment device for sewage treatment:

[0007] The dosing sewage treatment device comprises a sewage treatment tank and a medicament water storage tank for injecting medicaments into the sewage treatment tank through a medicament conveying pipeline. The sewage treatment tank is internally provided with a medicament water preparation cavity. The medicament water preparation cavity comprises a dispensing chamber located in the middle of the sewage treatment tank and a gate provided at the bottom of the dispensing chamber and being openable and closable. Clean water is injected into the dispensing chamber to wait for the medicament water storage tank to inject medicaments.

[0008] The end of the medicine delivery pipeline connected with the medicine storage tank is provided with a medicine delivery mechanism, which comprises a plurality of medicine storage cavities arranged in a delivery chamber and communicated with the medicine delivery pipeline, and a medicine injection cavity connected with the medicine storage cavities, wherein a rotatable ball is arranged in the medicine injection cavity, and a groove is arranged on the surface of the ball, and the medicine flowing into the groove is discharged from the medicine injection cavity along with the rotation of the ball.

[0009] The rotation of the ball is driven by a rotating mechanism, which comprises a spherical impeller rotatably arranged at the opening of the mounting frame and a transmission rod connected with the ball and synchronously rotated with the spherical impeller, and the ball is driven to rotate by the transmission rod when the spherical impeller is rotated by the water injected into the delivery chamber.

[0010] Further description of the sewage treatment device for adding medicine for sewage treatment according to the above-mentioned technology:

[0011] The medicine preparation cavity further comprises a plurality of mounting frames arranged on the inner wall of the sewage treatment tank, and the delivery chamber is fixedly arranged on the mounting frame, and a water guide plate is arranged on the top of the delivery chamber, and an installation part is arranged below the water guide plate, and a groove penetrating to the outside of the water guide plate is arranged on the installation part, and the medicine storage cavities and the medicine injection cavity are arranged in the groove.

[0012] Further description of the sewage treatment device for adding medicine for sewage treatment according to the above-mentioned technology:

[0013] A blocking sleeve is rotatably arranged in the groove arranged on the installation part, the blocking sleeve is sleeved on the surface of the medicine injection cavity and is provided with a hole, and the blocking sleeve is tightly combined with the inner wall of the groove when the blocking sleeve is rotated to the side close to the groove.

[0014] Further description of the sewage treatment device for adding medicine for sewage treatment according to the above-mentioned technology:

[0015] The medicine delivery mechanism further comprises a sliding groove arranged on the outer wall of the installation part and a sliding block slidably arranged in the sliding groove, a push rod is arranged on the inner side of the sliding block, a hinge shaft is arranged on the outer side of the sliding block, and a floating ball is rotatably arranged on the hinge shaft.

[0016] A guide groove is arranged on the surface of the blocking sleeve and matched with the push rod, and the blocking sleeve is guided to rotate through the guide groove when the push rod rises.

[0017] Further description of the sewage treatment device for adding medicine for sewage treatment according to the above-mentioned technology:

[0018] A resisting groove is arranged on the hinge shaft, a resisting block matched with the resisting groove is arranged on the floating ball, and the resisting groove is abutted with the resisting block when the floating ball is rotated to be horizontal with the hinge shaft as the axis.

[0019] Further description of the sewage treatment device for adding medicine for sewage treatment according to the above-mentioned technology:

[0020] The bottom of the medicine storage cavity is provided with a liquid outlet channel, and a sealing block is connected to the liquid outlet channel through a plurality of telescopic rods;

[0021] The middle part of the medicine injection cavity is provided with a filter screen, and the middle part of the filter screen is provided with a plug rod matched with the plug slot, when the medicine storage cavity is connected with the medicine injection cavity, the plug rod is inserted into the plug slot and pushes the sealing block to separate from the liquid outlet channel, and the medicine in the medicine storage cavity flows out through the liquid outlet channel.

[0022] Further description of the above-mentioned technology as a dosing sewage treatment device for sewage treatment:

[0023] The rotating mechanism further comprises a mounting ring mounted in the middle part of the water guide plate, a spherical impeller is rotatably mounted in the mounting ring, and a gear ring is mounted on the middle part of the spherical impeller;

[0024] A transmission rod is mounted at the axis of the ball, a driven wheel is mounted on the transmission rod, and a transmission belt is sleeved on the driven wheel and the gear ring.

[0025] Further description of the above-mentioned technology as a dosing sewage treatment device for sewage treatment:

[0026] The surface of the blocking sleeve is provided with a straight groove for the transmission rod to pass through, and the starting and ending positions of the straight groove and the guide groove are on the same vertical horizontal line of the surface of the blocking sleeve.

[0027] Further description of the above-mentioned technology as a dosing sewage treatment device for sewage treatment:

[0028] A water guide ring is mounted on the adjusting chamber, the water guide ring is located above the mounting ring and has an arc-shaped groove inside;

[0029] A water baffle is arranged above the water guide ring, a semicircular water inlet is arranged on the surface of the water baffle, and the inner edge of the arc-shaped groove of the water guide ring is the same height as the water inlet of the water baffle.

[0030] Further description of the above-mentioned technology as a dosing sewage treatment device for sewage treatment:

[0031] A protective shell is arranged inside the adjusting chamber, the transmission belt and the driven wheel are arranged inside the protective shell, a hole is arranged on the top of the protective shell for the transmission belt to pass through, and holes are arranged on both sides of the protective shell for the transmission rod to pass through;

[0032] Rod sleeves are arranged on both sides of the protective shell and are sleeved on the surface of the transmission rod.

[0033] As described above, due to the adoption of the above-mentioned technology as a dosing sewage treatment device for sewage treatment, the beneficial effects of the present application are:

[0034] The water medicine preparation cavity and the medicine feeding mechanism are arranged, so that before sewage is treated, clean water is first injected into the preparation chamber to prepare medicine, then the ball is rotated, the medicine in the ball groove is guided out of the medicine injection cavity under the rotation of the ball, and falls into the clean water under the action of gravity, and the high-concentration medicine and the clean water are premixed in the preparation chamber to prepare low-concentration medicine; since the clean water is stored in the preparation chamber, the medicine does not contact the sewage in advance to generate flocculation; since the concentration of the medicine is lower than that of the medicine, the density difference between the medicine and the sewage is reduced, and the dispersion and uneven mixing caused by the large concentration difference are avoided, and the possibility of flocculation before stirring is further reduced.

[0035] The rotating mechanism is arranged, so that during the injection of clean water into the preparation chamber, the water is guided to the installation ring by the water guide plate and impacts the spherical impeller to drive the spherical impeller to rotate, the spherical impeller drives the transmission belt to move through the gear ring, the transmission belt drives the transmission rod to rotate through the driven wheel, and the ball connected with the transmission rod can rotate, so that the medicine is added together with the clean water, and since the flow rate of the clean water is relatively stable after passing through the spherical impeller, the medicine and the clean water can contact each other during injection into the preparation chamber, so that the medicine can be rapidly dispersed and fully mixed with the clean water. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A perspective structural schematic view of a sewage treatment medicine feeding device for sewage treatment is shown.

[0037] Figure 2 A front view cross-sectional structural schematic view of a medicine storage tank is shown.

[0038] Figure 3 A perspective cross-sectional structural schematic view of a preparation chamber is shown.

[0039] Figure 4 A perspective distribution schematic view of a medicine feeding mechanism and a rotating mechanism arranged in the preparation chamber is shown.

[0040] Figure 5 An enlarged structural schematic view of A in the figure is shown. Figure 4

[0041] Figure 6 A water flow and medicine liquid flow direction schematic view in the preparation chamber is shown.

[0042] Figure 7 A perspective cross-sectional structural schematic view of a medicine feeding mechanism is shown.

[0043] Figure 8 A partial perspective cross-sectional structural schematic view when the medicine storage liquid outlet channel is opened is shown. ​

[0044] Figure 9 Fig. 6 shows a partial perspective sectional structure diagram of the liquid outlet channel when the medicine storage is closed;

[0045] Figure 10 Fig. 7 shows a perspective sectional structure diagram of the medicine injection cavity;

[0046] Figure 11 Fig. 8 shows a perspective structure diagram of the ball;

[0047] Figure 12 Fig. 9 shows a perspective structure diagram of the blocking sleeve;

[0048] Figure 13 Fig. 10 shows a partial perspective structure diagram of the hinge shaft and the floating ball;

[0049] Figure 14 Fig. 11 shows a perspective structure diagram of the rotating mechanism;

[0050] Figure 15 Fig. 12 shows a perspective structure diagram of the spherical impeller;

[0051] Figure 16 Fig. 13 shows a perspective structure diagram of the flow blocking ring and the water baffle.

[0052] Legend:

[0053] 11, sewage treatment tank; 12, medicine storage tank;

[0054] 20, medicine preparation cavity; 21, mounting frame; 22, preparation chamber; 23, water guide plate; 24, mounting part; 25, gate;

[0055] 30, medicine injection mechanism; 31, medicine storage cavity; 311, liquid outlet channel; 312, closing block; 313, insertion slot; 314, telescopic rod; 32, medicine injection cavity; 321, filter screen; 322, insertion rod; 33, ball; 34, blocking sleeve; 341, guide slot; 342, straight slot; 35, sliding slot; 36, sliding block; 37, hinge shaft; 371, resistance slot; 38, floating ball; 381, abutting block; 39, push rod;

[0056] 40, rotating mechanism; 41, mounting ring; 42, spherical impeller; 421, tooth ring; 43, transmission belt; 44, driven wheel; 45, transmission rod;

[0057] 51, flow blocking ring; 52, water baffle; 53, protective shell; 54, rod sleeve. DETAILED DESCRIPTION

[0058] One kind of sewage treatment dosing sewage treatment device will be clearly and completely described below in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0059] To solve the problem that in the conventional dosing method, a fixed amount of medicament is added at one time, and then the medicament is mixed with sewage by stirring. Before stirring, although the medicament has not been uniformly dispersed in the sewage, the medicament that first contacts the sewage has reacted with the substances in the water. At this time, the floc formed in the sewage is sheared and degraded again by the high-speed rotating blades, and the floc cannot be cleaned in time, resulting in secondary pollution. The present application provides a sewage treatment dosing device for sewage treatment, as shown in Figure 1 Figure 16

[0060] The sewage treatment device comprises a sewage treatment tank 11 and a medicament storage tank 12 for injecting medicament into the sewage treatment tank 11 through a medicament conveying pipeline. The sewage treatment tank 11 is internally provided with a medicament preparation chamber 20. The medicament preparation chamber 20 comprises a dispensing chamber 22 located in the middle of the sewage treatment tank 11 and a gate 25 provided at the bottom of the dispensing chamber 22 and being openable and closable. The power source for controlling the opening and closing of the gate 25 is an underwater pneumatic motor with a model of TONSON V4-IEC. Fresh water is injected into the dispensing chamber 22 to wait for the medicament to be injected from the medicament storage tank 12.

[0061] A dosing mechanism 30 is installed at the end of the medicament conveying pipeline connected with the medicament storage tank 12. The dosing mechanism 30 comprises two medicament storage cavities 31 installed in the dispensing chamber 22 and communicating with the medicament conveying pipeline, and a medicament injection cavity 32 connected with the medicament storage cavities 31. A rotatable ball 33 is arranged in the medicament injection cavity 32, and a groove is formed on the surface of the ball 33.

[0062] The medicament preparation chamber 20 further comprises a plurality of mounting racks 21 mounted on the inner wall of the sewage treatment tank 11. The dispensing chamber 22 is fixedly installed on the mounting racks 21. A water guide plate 23 is arranged at the top of the dispensing chamber 22, and a mounting portion 24 is arranged below the water guide plate 23. A groove penetrating through the outer side of the water guide plate 23 is formed in the mounting portion 24. The medicament storage cavities 31 and the medicament injection cavity 32 are both installed in the groove.

[0063] Before treating the sewage, fresh water for dispensing medicament is first injected into the dispensing chamber 22. The fresh water flows through the mounting portion 24 under the guidance of the water guide plate 23, and finally reaches the sealed space formed by the dispensing chamber 22 and the closed gate 25.

[0064] ​​At this time, the medicine storage tank 12 is opened again, and the medicine in the medicine storage tank 12 is guided into the medicine storage cavity 31 through the medicine guiding pipe. The medicine in the medicine storage cavity 31 enters the medicine injection cavity 32. At this time, the medicine contacts the ball 33 and flows into the groove opened on the surface. By rotating the ball 33, the medicine flowing into the groove of the ball 33 is guided out of the medicine injection cavity 32 under the rotation of the ball 33, and falls into the clean water under the action of gravity. The high-concentration medicine and the clean water complete the premixing in the mixing chamber 22 to prepare the low-concentration medicine water.

[0065] Since the mixing chamber 22 stores clean water, the medicine will not contact the sewage in advance to generate flocculation. At this time, the gate 25 is opened again, and the mixed medicine water is guided out of the mixing chamber 22 and injected into the sewage treatment tank 11 to react with the sewage in the sewage treatment tank 11.

[0066] Since the concentration of the medicine water is lower than that of the medicine, the density difference between the medicine water and the sewage is reduced, thereby avoiding the dispersion and uneven mixing caused by the large concentration difference, and the possibility of flocculation before stirring is further reduced.

[0067] At the same time, as shown in Figure 12 , the blocking sleeve 34 is also rotatably embedded in the groove opened on the mounting portion 24. The blocking sleeve 34 is sleeved on the surface of the medicine injection cavity 32 and is provided with a hole. When the blocking sleeve 34 is rotated to the side close to the groove, it is tightly attached to the inner wall of the groove.

[0068] Through the design, the blocking sleeve 34 can block the medicine injection cavity 32, avoid the problem of medicine leakage caused by the active rotation of the ball 33 under the pressure of the medicine injection cavity 32, and avoid the situation that the concentration of the medicine water does not meet the expectation. When the blocking sleeve 34 is rotated to the other side, the medicine can be discharged through the hole opened on the surface of the blocking sleeve 34.

[0069] As shown in Figures 7-10 , the medicine administration mechanism 30 further comprises a sliding groove 35 opened on the outer wall of the mounting portion 24 and a sliding block 36 slidably embedded in the sliding groove 35. The sliding block 36 is provided with a push rod 39 on the inner side and a hinge shaft 37 on the outer side. The hinge shaft 37 is rotatably installed with a floating ball 38.

[0070] The surface of the blocking sleeve 34 is provided with a guide groove 341 matched with the push rod 39. When the push rod 39 rises, the blocking sleeve 34 is guided to rotate through the guide groove 341.

[0071] Through the design, after the clean water is injected into the adjusting chamber 22, when the water level in the adjusting chamber 22 gradually rises, the floating ball 38 can float up and drive the sliding block 36 to slide and rise in the sliding groove 35 through the hinged shaft 37, at this time, the push rod 39 is inserted into the bottom end of the guide groove 341, therefore, when the sliding block 36 rises, the push rod 39 contacts the inner wall of the guide groove 341 and pushes the blocking sleeve 34, so that the blocking sleeve 34 can be actively rotated in the groove on the mounting portion 24, after the blocking sleeve 34 rotates half a circle, the top end of the guide groove 341 abuts against the push rod 39, and the opening of the blocking sleeve 34 is completed, which can ensure that the blocking sleeve 34 can normally rotate and open when the clean water is injected, and at the same time, under the limitation of the guide groove 341 and the push rod 39, the position of the blocking sleeve 34 when it is closed and opened is also ensured to be accurate.

[0072] It should be noted that when the water level is higher than the ball 33, part of the clean water may be pressed into the medicine injection cavity 32 through the groove on the surface of the ball 33 under the action of water pressure, but when the medicine storage tank 12 delivers the medicine to the medicine storage cavity 31, it will provide a pressure opposite to the direction of the water pressure to offset the influence of part of the water pressure, at the same time, the groove on the surface of the ball 33 is filled with a medicine with weaker flowability and higher viscosity than water, which can also prevent clean water from passing through, and a small amount of clean water entering the medicine injection cavity 32 will not affect the normal discharge and use of the medicine.

[0073] Further, in order to improve the effect of the floating ball 38 driving the sliding block 36 to rise and fall in the sliding groove 35, as shown in Figure 5 and Figure 13 , a resisting groove 371 is arranged on the hinged shaft 37, and a resisting block 381 is arranged on the floating ball 38 and matched with the resisting groove 371;

[0074] When the floating ball 38 rotates around the hinged shaft 37 under the action of buoyancy, the resisting block 381 can abut against the resisting groove 371 to limit the floating ball 38 from continuing to rotate, at this time, the floating ball 38 remains in a horizontal state and rises with the horizontal plane, therefore, the floating ball 38 can apply a relatively vertical upward force to the hinged shaft 37 through the resisting block 381 and the resisting groove 371 to drive the sliding block 36 to slide in the sliding groove 35, avoiding the situation that the force direction is excessively inclined, and preventing the sliding block 36 from being stuck when it slides and rises in the sliding groove 35;

[0075] When the conditions for supplying the medicine through the medicine storage tank 12 are not met, the medicine can also be filled in the medicine storage cavity 31 in advance, and then connected with the medicine injection cavity 32 for feeding, as shown in Figures 7-10 , a liquid outlet passage 311 is arranged at the bottom of the medicine storage cavity 31, and a sealing block 312 is connected above the liquid outlet passage 311 through a plurality of telescopic rods 314, the telescopic rod 314 includes a fixed portion arranged on the liquid outlet passage 311 and a movable portion connected with the sealing block 312;

[0076] A filter screen 321 is arranged in the middle of the medicine injection cavity 32, and a plug rod 322 is arranged in the middle of the filter screen 321 and cooperates with the insertion slot 313;

[0077] After the medicine storage cavity 31 is filled with medicine, the closure block 312 and the liquid outlet channel 311 are embedded and sealed under the limitation of the telescopic rod 314, and the medicine cannot flow out of the medicine storage cavity 31 through the liquid outlet channel 311, and the medicine can be stored in the medicine storage cavity 31 for transportation;

[0078] When the medicine storage cavity 31 needs to be installed, it is inverted and installed by screwing with the medicine injection cavity 32. During the installation process, the plug rod 322 arranged in the medicine injection cavity 32 penetrates the middle of the liquid outlet channel 311 and is inserted into the insertion slot 313. When the insertion slot 313 is pushed to rise, the insertion slot 313 can drive the movable part of the telescopic rod 314 to extend from the fixed part, so that the distance between the closure block 312 and the liquid outlet channel 311 is expanded until they are completely separated. The liquid outlet channel 311 is opened, and the medicine enters the medicine injection cavity 32 through the gap between the closure block 312 and the liquid outlet channel 311, and reaches the ball 33 after passing through the filter screen 321 to wait for discharge.

[0079] In order to enable the ball 33 to rotate and discharge the medicine while injecting clean water, as shown in the figure, Figure 14 The rotation of the ball 33 is driven by a rotating mechanism 40. The rotating mechanism 40 includes a spherical impeller 42 rotatably arranged at the opening of the mounting frame 21 and a transmission rod 45 connected with the ball 33 and synchronously rotating with the spherical impeller 42. When water is injected into the adjusting chamber 22, it impacts the spherical impeller 42 to rotate, and the spherical impeller 42 drives the ball 33 to rotate through the transmission rod 45;

[0080] The rotating mechanism 40 further includes a mounting ring 41 mounted in the middle of the water guide plate 23, and the spherical impeller 42 is rotatably arranged inside the mounting ring 41. A gear ring 421 is arranged in the middle of the spherical impeller 42;

[0081] The transmission rod 45 is installed at the center of the ball 33, and a driven wheel 44 is installed on the transmission rod 45. The driven wheel 44 is sleeved with a transmission belt 43 on the gear ring 421;

[0082] During the injection of clean water into the adjusting chamber 22, water can be guided to the mounting ring 41 by the water guide plate 23 and impact the spherical impeller 42 to drive it to rotate. The spherical impeller 42 drives the transmission belt 43 to move through the gear ring 421, so that the transmission belt 43 can drive the transmission rod 45 to rotate through the driven wheel 44. The ball 33 connected with the transmission rod 45 can rotate accordingly, thereby achieving the purpose of adding medicine together with the injection of clean water;

[0083] Since the flow rate of the clean water is relatively stable after passing through the spherical impeller 42, the medicine can be in contact with the clean water during injection into the preparation chamber 22, so that the medicine can be rapidly dispersed and fully mixed with the clean water.

[0084] Meanwhile, since the transmission rod 45 is directly connected with the ball 33, in order to avoid the conflict between the rotation of the transmission rod 45 and the rotation of the blocking sleeve 34, as shown in the figure, the blocking sleeve 34 is provided with a straight groove 342 for the transmission rod 45 to pass through, and the starting and ending positions of the straight groove 342 and the guide groove 341 are on the same vertical horizontal line of the surface of the blocking sleeve 34. Figure 12

[0085] Through the design, the blocking sleeve 34 can also drive the straight groove 342 to rotate when it rotates under the cooperation of the guide groove 341 and the push rod 39. Since the starting and ending positions of the guide groove 341 and the straight groove 342 are on the same vertical horizontal line of the surface of the blocking sleeve 34, and the transmission rod 45 passes through the straight groove 342, the transmission rod 45 is still located in the straight groove 342 after the blocking sleeve 34 rotates one round, so the blocking sleeve 34 will not conflict with the transmission rod 45 in the rotating state when it rotates.

[0086] Further, in order to ensure that the water flow rate through the spherical impeller 42 is stable and the rotating direction is stable, a flow blocking ring 51 is installed on the preparation chamber 22, and the flow blocking ring 51 is located above the mounting ring 41 and is provided with an arc-shaped groove inside.

[0087] A water baffle 52 is arranged above the flow blocking ring 51, and the water baffle 52 is provided with a semicircular water inlet on the surface, and the inner edge of the arc-shaped groove of the flow blocking ring 51 is the same height as the water inlet of the water baffle 52.

[0088] Through the design, the clean water entering the preparation chamber 22 will be first guided to the flow blocking ring 51 after contacting the water guide plate 23. Under the blocking of the arc-shaped groove of the flow blocking ring 51, the flow rate of the clean water is slowed down, so that the situation that the clean water directly impacts the spherical impeller 42 to cause the spherical impeller 42 to rotate too fast and the medicine discharge amount to be unstable does not occur.

[0089] When the water level in the arc-shaped groove of the flow blocking ring 51 exceeds the inner edge, the clean water will overflow the flow blocking ring 51 and enter through the semicircular water inlet on the surface of the water baffle 52. Since there is a height difference between the flow blocking ring 51 and the spherical impeller 42, the water flow can impact the spherical impeller 42 at a relatively uniform flow rate under the action of gravity, and the clean water will not contact the other side of the spherical impeller 42 under the blocking of the water baffle 52, so that the rotating direction of the spherical impeller 42 is stable and unchanged.

[0090] ​The water flows into the adjusting chamber 22 after passing through the spherical impeller 42, the adjusting chamber 22 is internally provided with a protective shell 53, the transmission belt 43 and the driven wheel 44 are arranged in the protective shell 53, the top of the protective shell 53 is provided with a hole for the transmission belt 43 to pass through, and the two sides are provided with holes for the transmission rod 45 to penetrate;

[0091] The two sides of the protective shell 53 are provided with rod sleeves 54, the rod sleeves 54 are sleeved on the surface of the transmission rod 45, as shown in the figure, through the design, the contact of water with the transmission belt 43, the driven wheel 44 and the transmission rod 45 is reduced, so as to delay the corrosion speed and prolong the service life, and meanwhile, the influence of water flow impact on the transmission of the transmission belt 43 and the stability of the rotation of the driven wheel 44 and the transmission rod 45 is avoided. Figure 4

[0092] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art in the technical range disclosed by the present application, according to the technical sewage treatment dosing sewage treatment device and the invention concept of the present application, equivalent replacement or change, should be covered in the protection scope of the present application.​

Claims

1. A sewage treatment device for treating sewage with a drug, comprising a sewage treatment tank (11) and a drug storage tank (12) for injecting a drug into the sewage treatment tank (11) through a drug delivery pipeline, characterized in that: The sewage treatment tank (11) is provided with a medicine preparation chamber (20) inside. The medicine preparation chamber (20) includes a mixing chamber (22) located in the middle of the sewage treatment tank (11) and a gate (25) that can be opened and closed and is provided at the bottom of the mixing chamber (22). Clean water is injected into the mixing chamber (22) to wait for the medicine storage tank (12) to inject medicine. A drug delivery mechanism (30) is installed at the end of the drug delivery pipeline connected to the medicine storage tank (12). The drug delivery mechanism (30) includes a plurality of drug storage chambers (31) installed in the preparation chamber (22) and connected to the drug delivery pipeline, and a drug injection chamber (32) connected to the drug storage chamber (31). A rotatable ball (33) is provided in the drug injection chamber (32). A groove is provided on the surface of the ball (33). The drug flowing into the groove is discharged from the drug injection chamber (32) as the ball (33) rotates. A mounting portion (24) is further provided in the mixing chamber (22). A groove extending through the outer side of the water guide plate (23) is provided on the mounting portion (24). The medicine storage chamber (31) and the medicine injection chamber (32) are both installed in the groove. A barrier sleeve (34) is rotatably embedded in the groove formed on the mounting portion (24). The barrier sleeve (34) is sleeved on the surface of the injection cavity (32) and has a hole formed therein. When the barrier sleeve (34) is rotated to a side close to the groove, it is tightly fitted with the inner wall of the groove. The drug delivery mechanism (30) further includes a slide groove (35) provided on the outer wall of the mounting portion (24) and a slider (36) slidably embedded in the slide groove (35), a push rod (39) being provided on the inner side of the slider (36), and a hinge shaft (37) being provided on the outer side, and a float (38) being rotatably mounted on the hinge shaft (37); The barrier sleeve (34) is provided with a guide groove (341) on its surface that cooperates with the push rod (39). When the push rod (39) rises, the guide groove (341) guides the barrier sleeve (34) to rotate. The rotation of the ball (33) is driven by a rotating mechanism (40). The rotating mechanism (40) includes a spherical impeller (42) rotatably arranged at an opening of the mounting frame (21) and a transmission rod (45) connected to the ball (33) and rotating synchronously with the spherical impeller (42). When water is injected into the mixing chamber (22), it impacts the spherical impeller (42) to rotate, and the spherical impeller (42) drives the ball (33) to rotate through the transmission rod (45).

2. The sewage treatment device according to claim 1, wherein: The medicine preparation chamber (20) further includes a plurality of mounting frames (21) mounted on the inner wall of the sewage treatment tank (11), the mixing chamber (22) is fixedly mounted on the mounting frames (21), and a water guide plate (23) is provided on the top of the mixing chamber (22).

3. The sewage treatment device according to claim 1, wherein: The hinge shaft (37) is provided with a resisting groove (371), and the float (38) is provided with an abutting block (381) that cooperates with the resisting groove (371). When the float (38) rotates with the hinge shaft (37) as the axis to a horizontal state, the resisting groove (371) abuts against the abutting block (381).

4. The sewage treatment device for treating sewage with a chemical according to claim 1, characterized in that: A liquid outlet channel (311) is provided at the bottom of the medicine storage chamber (31), and a sealing block (312) is connected above the liquid outlet channel (311) via a plurality of telescopic rods (314). The telescopic rods (314) include a fixed portion provided on the liquid outlet channel (311) and a movable portion connected to the sealing block (312). A filter screen (321) is provided in the middle of the drug injection chamber (32), and an insertion rod (322) that cooperates with the slot (313) is provided in the middle of the filter screen (321). When the drug storage chamber (31) and the drug injection chamber (32) are connected, the insertion rod (322) is inserted into the slot (313) and pushes the closing block (312) to separate from the liquid outlet channel (311), and the drug in the drug storage chamber (31) flows out through the liquid outlet channel (311).

5. The sewage treatment device for treating sewage with a chemical according to claim 1, characterized in that: The rotating mechanism (40) further includes a mounting ring (41) mounted in the middle of the water guide plate (23); a spherical impeller (42) is rotatably mounted inside the mounting ring (41); and a gear ring (421) is sleeved and mounted in the middle of the spherical impeller (42); A transmission rod (45) is installed at the axis of the ball (33), a driven wheel (44) is installed on the transmission rod (45), and a transmission belt (43) is sleeved on the driven wheel (44) and the gear ring (421).

6. The sewage treatment device for treating sewage with a chemical according to claim 5, characterized in that: The barrier sleeve (34) has a straight groove (342) on its surface for the transmission rod (45) to pass through, and the starting and ending positions of the straight groove (342) and the guide groove (341) are located on the same vertical horizontal line on the surface of the barrier sleeve (34).

7. The sewage treatment device for treating sewage with a chemical according to claim 2, characterized in that: A water guide ring (51) is installed on the mixing chamber (22), and the water guide ring (51) is located above the mounting ring (41) and has an arc-shaped groove formed inside. A water baffle (52) is provided above the water guide ring (51), and a semicircular water inlet is provided on the surface of the water baffle (52). The inner edge of the arc-shaped groove of the water guide ring (51) is at the same height as the water inlet of the water baffle (52).

8. The sewage treatment device for treating sewage with a chemical according to claim 7, characterized in that: A protective shell (53) is provided inside the mixing chamber (22), a transmission belt (43) and a driven wheel (44) are provided inside the protective shell (53), a hole for the transmission belt (43) to pass through is provided on the top of the protective shell (53), and holes for the transmission rod (45) to pass through are provided on both sides; Rod sleeves (54) are provided on both sides of the protective shell (53), and the rod sleeves (54) are sleeved on the surface of the transmission rod (45).

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