A sewage treatment equipment

Abstract

The present invention discloses a sewage treatment equipment, which includes: a tank body, which is used to store sewage mixture; a drug adding detection unit, which includes a drug adding component and a detection component, which is used to detect the data parameters of sewage, optimize the sewage mixture, and complete the drug addition by the drug adding component; a baffle mixing device, which is arranged outside the tank body and cooperates with the drug adding detection unit to complete the preliminary mixing of sewage and drugs; a mixing overflow device, which is arranged inside the tank body and is used to further mix the sewage mixture, and is connected to the baffle mixing device through a pipeline; a stirring mechanism, which is used to stir the sewage mixture. The sewage treatment equipment of the present invention separates impurities and clean water in the sewage through the treatment of the baffle mixing device, the mixing overflow device and the tank body, and its structure is scientific and reasonable, and the treatment efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, and in particular to sewage treatment equipment. Background Art

[0002] As my country's environmental protection requirements become increasingly stringent, sewage treatment equipment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering. Especially in the process of sand and gravel production, a large amount of water resources are consumed. The conventional sand and gravel washing sewage treatment process is to collect the sewage from the tailings machine outlet at the production site into a concrete sewage pool excavated on the ground, then add chemicals for flocculation, and then use a pump to pump the sewage in the sewage pool into the dewatering system, and the dehydrated filtrate is discharged into the concrete clear water pool excavated on the ground. At present, conventional sand and gravel washing sewage process equipment has problems such as high cost, difficult to clean sediment at the bottom of the sewage pool, and low treatment efficiency. Summary of the invention

[0003] In order to solve the above technical defects, the present invention provides a sewage treatment equipment, which has a simple structure and high treatment efficiency.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A sewage treatment device, comprising:

[0006] A tank body, used to store sewage mixture;

[0007] The dosing and detection unit includes a dosing component and a detection component, which is used to detect the data parameters of the sewage, optimize the sewage mixture, and complete the drug addition by the dosing component;

[0008] The baffle mixing device is arranged outside the pool body and cooperates with the dosing and detection unit to complete the preliminary mixing of sewage and drugs;

[0009] A mixing overflow device is arranged in the tank body, used for further mixing the sewage mixture, and is connected to the baffle mixing device through a pipeline;

[0010] The stirring mechanism is used to stir the sewage mixture.

[0011] In the sewage treatment equipment of the present invention, sewage and medicine are preliminarily mixed in the baffle mixing device to form a sewage mixed liquid, and the sewage mixed liquid is further mixed in the mixing overflow device and then flows into the tank body; after the stirring mechanism in the tank body fully stirs the mixed liquid, the impurities in the sewage mixed liquid react with the medicine to form a precipitate, which settles to the bottom of the tank body.

[0012] Furthermore, the mixing overflow device includes an overflow tube and an outer tube which are sleeved together, and the stirring mechanism includes a stirring shaft which passes through the overflow tube and extends into the interior of the pool body.

[0013] Furthermore, the top of the pool body is open and is provided with a cover plate, which is used to divide the pool body into a pretreatment area and a stirring and sedimentation area. The deflection mixing device and the drug addition detection unit are arranged on the pretreatment area and are placed above the cover plate, and the stirring mechanism and the mixing overflow device are arranged in the stirring and sedimentation area and are placed below the cover plate.

[0014] Furthermore, the baffle mixing device includes a trough body, and a liquid inlet and a liquid outlet arranged on the trough body; the trough body is provided with a plurality of low-position baffles and a plurality of high-position baffles whose heights are greater than the low-position baffles, wherein at least one high-position baffle is provided between two adjacent low-position baffles located on the same side of the trough body.

[0015] Furthermore, the end of the low-position baffle away from the inner wall of the tank body is bent toward the liquid inlet; the ends of both ends of the high-position baffle are respectively bent toward the liquid inlet, and the middle part of the high-position baffle is bent toward the liquid outlet.

[0016] The liquid is deflected multiple times by the multiple bending angles of the high-position baffle and the low-position baffle. At the same time, the height difference between the high-position baffle and the low-position baffle increases the flow rate of the liquid, thereby improving the mixing efficiency and reducing the mixing time.

[0017] Furthermore, the dosing component is communicated with the liquid inlet; the detection component is connected with the liquid outlet, and is used to detect data parameters of the sewage mixture flowing out of the liquid outlet, and send dosing information to the dosing component.

[0018] Furthermore, the mixing overflow device includes: a liquid inlet pipe connected to the overflow tube is provided on the peripheral wall of the overflow tube, and the liquid inlet pipe is arranged to deviate from the central axis of the overflow tube according to its extension direction; a plurality of overflow ports are also provided on the peripheral wall of the overflow tube, and the bottom of the overflow tube gradually narrows to form a funnel shape; the overflow tube is arranged inside the outer tube, and the liquid inlet pipe connects the overflow tube and the outer tube; the outer tube cooperates with the overflow tube to form a downflow zone arranged around the overflow tube.

[0019] Since the overflow tube gradually narrows at the bottom to form a funnel shape, and the liquid inlet pipe is arranged in a direction deviating from the central axis of the overflow tube, when the sewage mixture flows into the overflow tube from the liquid inlet pipe, the sewage mixture will produce a tangential tumbling swirl mixing effect along the inner wall of the overflow tube, thereby achieving a better mixing effect. The outer tube is arranged outside the overflow tube to prevent the sewage mixture discharged from the overflow port from splashing.

[0020] Furthermore, the stirring mechanism includes a stirring shaft and a paddle assembly connected to the stirring shaft; the paddle assembly includes a paddle rod connected to the stirring shaft and extending radially along the stirring shaft, and a plurality of paddles arranged on the paddle rod; each of the paddles is elongated and arched, and its height gradually decreases along the stirring direction of the paddle rod, and the arc mouth of the paddle faces the stirring shaft, wherein the paddle is arranged at an acute angle to the paddle rod, and the narrower end of the paddle is arranged away from the stirring shaft.

[0021] Furthermore, the blades are arranged below the paddle rod, and the heights of the plurality of blades viewed from the horizontal direction gradually decrease along the extending direction of the paddle rod.

[0022] Furthermore, a sediment collection trough is provided at the center of the bottom of the pool body; and a clean water overflow trough is provided along the circumferential direction on the inner wall of the upper part of the pool body.

[0023] Since each of the paddles is long and arched, and its height along the stirring direction of the paddle shaft gradually decreases, and the arc of the paddle blade faces the stirring shaft, wherein the paddle blade is arranged at an acute angle to the paddle shaft, and the narrower end of the paddle blade is arranged away from the stirring shaft. When the stirring mechanism rotates, the sewage mixed liquid in the tank body converges from a relatively outer position to the center of the tank body along the paddle blade, and at the same time converges from a relatively high position to the bottom of the tank body, which is conducive to the impurities in the sewage mixed liquid settling into the sediment collection tank at the bottom of the tank body.

[0024] In summary, the sewage treatment equipment of the present invention has a special structure of a dosing detection unit, a baffle mixing device, a mixing overflow device and a stirring mechanism, so that impurities in the sewage are separated from the clean water, and the sewage is recycled after treatment. Compared with the prior art, the sewage treatment equipment of the present invention has a scientific and reasonable structure, good mixing effect and high treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the sewage treatment equipment of the present invention;

[0026] Figure 2 It is a schematic structural diagram of the baffle mixing device of the present invention;

[0027] Figure 3is a top view of the baffle mixing device of the present invention;

[0028] Figure 4 It is a schematic structural diagram of the mixing overflow device of the present invention;

[0029] Figure 5 is a front view of the mixing overflow device of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the stirring mechanism of the present invention;

[0031] Figure 7 is a top view of the sewage treatment equipment of the present invention;

[0032] Figure 8 It is a top view of the blade assembly of the present invention.

[0033] Among them, 1. tank body, 2. dosing component, 3. detection component, 4. baffle mixing device, 5. mixing overflow device, 6. stirring mechanism, 7. cover plate, 11. sediment collection tank, 12. clean water overflow tank, 41. tank body, 42. liquid inlet, 43. liquid outlet, 44. low-position baffle, 45. high-position baffle, 46. front baffle, 51. overflow cylinder, 52. outer cylinder, 53. liquid inlet pipe, 54. overflow port, 55. downflow area, 56. reinforcing rod, 61. stirring shaft, 62. paddle rod, 63. paddle blade, 421. sewage inlet, 422. drug inlet, 451. first through hole, 461. water inlet area, 621. paddle rod connecting flange. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] like Figure 1 As shown, the sewage treatment equipment of the present invention comprises: a tank body 1 for storing sewage mixed liquid;

[0036] The drug adding and detecting unit includes a drug adding component 2 and a detecting component 3, which is used to detect the data parameters of the sewage, optimize the sewage mixture, and complete the drug addition by the drug adding component 2;

[0037] The baffle mixing device 4 is arranged outside the tank body 1 and cooperates with the drug adding and detecting unit to complete the preliminary mixing of the sewage and the drug;

[0038] A mixing overflow device 5 is arranged in the tank body 1, used for further mixing the sewage mixture, and is connected to the baffle mixing device 4 through a pipeline;

[0039] The stirring mechanism 6 is used to stir the sewage mixture.

[0040] Specifically, a sediment collecting groove 11 is further provided at the center of the bottom of the pool body 1 ; and a clean water overflow groove 12 is circumferentially provided on the inner wall of the upper portion of the pool body 1 .

[0041] It should be noted that the drug described in this application is a flocculating drug, which is a commonly used drug in the field of sewage treatment and will not be described in detail here.

[0042] When the sewage treatment equipment is in working condition, sewage and medicine are initially mixed in the baffle mixing device 4 to form a sewage mixture, and the sewage mixture is further mixed in the mixing overflow device 5 and then flows into the tank body 1; after the stirring mechanism 6 in the tank body 1 fully stirs the mixture, the impurities in the sewage mixture react with the medicine to form a precipitate, which settles to the bottom of the tank body 1; as more and more sewage mixture enters the tank body 1, the clean water in the sewage mixture flows into the clean water overflow groove 12 on the inner wall of the upper part of the tank body 1, thereby realizing the separation of impurities and clean water.

[0043] Specifically, the top of the pool body 1 is open and is provided with a cover plate 7, which is used to divide the pool body into a pretreatment area and a stirring and sedimentation area. The deflection mixing device 4 and the dosing detection unit are arranged in the pretreatment area and are placed above the cover plate 7. The stirring mechanism 6 and the mixing overflow device 5 are arranged in the stirring and sedimentation area and are placed below the cover plate 7.

[0044] Specifically, the mixing overflow device 5 includes an overflow tube 51 and an outer tube 52 which are sleeved together, and the stirring mechanism 6 includes a stirring shaft 61 , which penetrates the overflow tube 51 and extends into the interior of the pool body.

[0045] The mixing overflow trough 5 is coaxially arranged with the stirring shaft 61 , and when the sewage mixed liquid overflows, it flows into the liquid collection center, which helps the impurities in the sewage mixed liquid to settle into the sediment collection tank 11 .

[0046] In order to improve the mixing efficiency of the medicine and the sewage in the baffle mixing device 4, as Figure 2 As shown, the baffle mixing device 4 includes a trough body 41, and a liquid inlet 42 and a liquid outlet 43 arranged on the trough body 41; a plurality of low-position baffles 44 and a plurality of high-position baffles 45 whose heights are greater than the low-position baffles 44 are arranged in the trough body 41, wherein at least one high-position baffle 45 is provided between two adjacent low-position baffles 44 located on the same side of the trough body 41.

[0047] The liquid inlet 42 includes a sewage inlet 421 and a drug inlet 422 .

[0048] like Figure 3As shown, the end of the low-position baffle 44 away from the inner wall of the tank body is bent toward the liquid inlet 42; the ends of both ends of the high-position baffle 45 are respectively bent toward the liquid inlet 42, and the middle part of the high-position baffle 45 is bent toward the liquid outlet 43.

[0049] Specifically, the high-position baffle 45 and the low-position baffle 44 are both vertically connected to the bottom of the inner surface of the trough body 41 .

[0050] In this embodiment, the top view of the low-position baffle 44 is V-shaped as a whole, wherein one end of the low-position baffle 44 is connected to the inner side wall of the tank body 41, effectively preventing the sewage mixture from directly flowing out from both sides of the tank body 41, and increasing the contact surface between the sewage mixture and the low-position baffle 44 or the high-position baffle 45; the end of the low-position baffle 44 away from the inner side wall of the tank body 41 is bent toward the liquid inlet 42, so that the liquid is effectively mixed. The high-position baffle 45 is W-shaped as a whole, and the ends of both ends of the high-position baffle 45 are bent toward the liquid inlet 42 respectively, and the middle part of the high-position baffle 45 is bent toward the liquid outlet 43.

[0051] The bottom of the inner surface of the trough body 41 is also connected to a front baffle 46; the front baffle 46 is arranged between the liquid inlet 42 and the high-position baffle 45 or the low-position baffle 44 closest to the liquid inlet 42; the middle opening of the front baffle forms a water inlet area 461, and the height of the water inlet area 461 is level with the height of the high-position baffle 45.

[0052] The middle opening of the front baffle forms a water inlet area 461. The liquid flows into the sewage baffle mixing tank 4 from the liquid inlet 42 through the water inlet area 461, which can make the liquid flow to the high-level baffle 45 or the low-level baffle 44 more concentratedly; and the height of the water inlet area 461 is level with the height of the high-level baffle 45, so that the liquid can better collide with the low-level baffle 44 and the high-level baffle 45 arranged behind the front baffle 46, avoiding the liquid directly bypassing the low-level baffle 44 and the high-level baffle 45 and passing over them, effectively controlling the path of the liquid flowing through the sewage baffle mixing tank 4, so that the liquid is fully baffled on the low-level baffle 44 and the high-level baffle 45 to achieve a mixing effect.

[0053] In order to prevent the high-position baffle 45 from having too large an area and causing too much resistance to the liquid, a first through hole 451 is opened in the middle of the high-position baffle 45 to avoid the accumulation of liquid and the occurrence of unsmooth flow.

[0054] Since the content of each batch of sewage is different, in order to achieve better sewage treatment effect, it is necessary to adjust the amount of medicine added to the sewage in real time. Figure 1As shown, the dosing component 2 is connected to the drug inlet 422; the detection component 3 is connected to the liquid outlet 43, and is used to detect the data parameters of the sewage flowing out of the liquid outlet 43, and send the dosing information to the dosing component 3. The dosing component 2 adds the drug to the drug inlet 422 according to the dosing information to optimize the sewage mixture.

[0055] In order to ensure that the sewage mixture is fully mixed when flowing into the tank body 1, the mixing overflow device 5 used in the present invention has high mixing efficiency.

[0056] like Figure 4 and Figure 5 As shown, a liquid inlet pipe 53 connected to the overflow tube 51 is provided on the peripheral wall of the overflow tube 51, and the liquid inlet pipe 53 is arranged to deviate from the central axis of the overflow tube 51 according to its extension direction; a plurality of overflow ports 54 are also provided on the peripheral wall of the overflow tube 51, and the bottom of the overflow tube 51 gradually narrows to form a funnel shape; the overflow tube 51 is arranged inside the outer tube 52, and the liquid inlet pipe 53 connects the overflow tube 51 and the outer tube 52; the outer tube 52 cooperates with the overflow tube 51 to form a downflow zone 55 arranged around the overflow tube 51.

[0057] Since the bottom of the overflow tube 51 gradually narrows to form a funnel shape, when the sewage mixed liquid enters the overflow tube 51 and flows downward, a tangential tumbling swirl mixing will be generated along the inner wall below the overflow tube 51, which can improve the mixing effect. As the mixed liquid increases, a part of the mixed liquid is discharged from the overflow port 54 into the pool body 1. The outer tube 52 is provided outside the overflow tube 51 to prevent the sewage mixed liquid discharged from the overflow port 54 from splashing.

[0058] Specifically, the upper port of the overflow tube 51 is connected to the lower surface of the cover plate 7; the upper port of the outer tube 52 is connected to the lower surface of the cover plate 7; the overflow tube 51 is connected to the middle part of the cover plate 7, and the stirring shaft 61 is passed through the overflow tube 51; the mixing overflow device 5 also includes at least one reinforcement rod 56, one end of the reinforcement rod 56 is connected to the outer surface of the overflow tube 51, and the other end thereof is connected to the inner surface of the outer tube 52.

[0059] In this embodiment, if Figure 4 and Figure 5 As shown, the mixing overflow device 5 includes four reinforcement rods 56 evenly distributed on the same horizontal plane, and the mixing overflow device 5 includes six overflow ports 54 evenly distributed on the same horizontal plane.

[0060] After the stirring device has been used for a period of time, the sediment at the bottom of the tank body 1 needs to be cleaned. Since the tank body 1 is large in size, the sediment at the bottom is difficult to clean. Therefore, the stirring mechanism used in the sewage treatment device of the present invention is a stirring mechanism with a confluence effect.

[0061] like Figure 6 , Figure 7 , Figure 8 As shown, the stirring mechanism 6 includes a stirring shaft 61 and a paddle assembly, and the paddle assembly includes: a paddle rod 62 connected to the stirring shaft 61 and extending radially along the stirring shaft 61, and at least one paddle 63 connected to the paddle rod 62; each of the paddles 63 is elongated and arched, and its height along the stirring direction of the paddle rod 62 gradually decreases, and the arc of the paddle 63 faces the stirring shaft 61, wherein the paddle 63 is arranged at an acute angle to the paddle 62, and the narrower end of the paddle 62 is arranged away from the stirring shaft 61.

[0062] Since each of the paddle blades 63 is long and arched, and its height along the stirring direction of the paddle rod 62 gradually decreases, and the arc of the paddle blade 63 faces the stirring shaft 61, wherein the paddle blade 63 is arranged at an acute angle with the paddle rod 62, and the narrower end of the paddle blade 63 is arranged away from the stirring shaft 61. Figure 7 As shown, when the stirring mechanism 6 rotates, the sewage mixed liquid in the tank body 1 converges from a relatively outer position to the center of the tank body 1 along the blades 63, and at the same time converges from a relatively high position to the bottom of the tank body 1, which is conducive to the impurities in the sewage mixed liquid settling into the sediment collection tank 11 at the bottom of the tank body. Wherein, direction A is the stirring direction of the stirring mechanism 6, and direction B is the confluence direction of the sewage mixed liquid.

[0063] In order to fully stir the sewage mixture at different heights in the pool body 1 , the heights of the plurality of paddles 63 viewed from the horizontal direction gradually decrease along the extending direction of the paddle rod 62 .

[0064] In this embodiment, five blades 63 are arranged below the paddle rod 62, and the blades 63 are connected to the lower surface of the paddle rod 62 by welding. The stirring mechanism 6 includes two blade assemblies; the two blade assemblies are symmetrically distributed about the axis of the stirring shaft 61.

[0065] Specifically, one end of the paddle rod 62 connected to the stirring shaft 61 forms the head, and the end away from the stirring shaft 61 forms the tail. The head is provided with a paddle rod connecting flange 621, and the stirring shaft 61 is provided with a stirring shaft connecting flange. The paddle rod connecting flange 621 is connected to the stirring shaft connecting flange through a locking member, which can be a bolt or the like.

[0066] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A sewage treatment equipment, characterized in that: include: A tank body, used to store sewage mixture; The dosing and detection unit includes a dosing component and a detection component, which is used to detect the data parameters of the sewage, optimize the sewage mixture, and complete the drug addition by the dosing component; The baffle mixing device is arranged outside the pool body and cooperates with the dosing and detection unit to complete the preliminary mixing of sewage and drugs; A mixing overflow device is arranged in the tank body, used for further mixing the sewage mixture, and is connected to the baffle mixing device through a pipeline; A stirring mechanism, used for stirring the sewage mixture; The stirring mechanism comprises a stirring shaft and a blade assembly connected to the stirring shaft; The paddle assembly comprises a paddle rod connected to the stirring shaft and extending radially along the stirring shaft, and a plurality of paddle blades arranged on the paddle rod; each of the paddle blades is long and arched, and its height along the stirring direction of the paddle rod gradually decreases, and the arc of the paddle blade faces the stirring shaft, wherein the paddle blade is arranged at an acute angle to the paddle rod, and the narrower end of the paddle blade is arranged away from the stirring shaft; The blades are arranged below the paddle rod, and the heights of the plurality of blades viewed from the horizontal direction gradually decrease along the extending direction of the paddle rod.

2. The sewage treatment equipment according to claim 1, characterized in that: The mixing overflow device comprises an overflow cylinder and an outer cylinder which are sleeved with each other, and the stirring mechanism comprises a stirring shaft which penetrates the overflow cylinder and extends into the interior of the pool body.

3. The sewage treatment equipment according to claim 1, characterized in that: The top of the pool is open, and A cover plate is provided to separate the pool body into a pretreatment area and a stirring and settling area. The deflection mixing device and the drug addition detection unit are arranged on the pretreatment area and placed above the cover plate. The stirring mechanism and the mixing overflow device are arranged in the stirring and settling area and placed below the cover plate.

4. A sewage treatment equipment according to claim 1, characterized in that: The baffle mixing device comprises a tank body, and a liquid inlet and a liquid outlet arranged on the tank body; The trough body is provided with a plurality of low-position baffles and a plurality of high-position baffles whose heights are greater than the low-position baffles, wherein at least one high-position baffle is provided between two adjacent low-position baffles on the same side of the trough body.

5. A sewage treatment equipment according to claim 4, characterized in that: The end of the low-position baffle away from the inner wall of the tank body is bent toward the liquid inlet; The ends of both ends of the high-position baffle are bent toward the liquid inlet respectively, and the middle part of the high-position baffle is bent toward the liquid outlet.

6. A sewage treatment equipment according to claim 4, characterized in that: The medicine adding assembly is in communication with the liquid inlet; The detection component is connected to the liquid outlet, and is used to detect data parameters of the sewage mixture flowing out of the liquid outlet, and send dosing information to the dosing component.

7. A sewage treatment equipment according to claim 2, characterized in that: A liquid inlet pipe connected to the overflow tube is provided on the peripheral wall of the overflow tube, and the liquid inlet pipe is arranged to deviate from the central axis of the overflow tube according to its extension direction; The overflow tube is also provided with a plurality of overflow ports on the peripheral wall, and the bottom of the overflow tube gradually narrows to form a funnel shape; The overflow cylinder is arranged inside the outer cylinder, and the liquid inlet pipe connects the overflow cylinder and the outer cylinder; The outer cylinder cooperates with the overflow cylinder to form a downflow zone arranged around the overflow cylinder.

8. A sewage treatment equipment according to claim 1, characterized in that: A sediment collection tank is also provided at the center of the bottom of the tank body; The inner wall of the upper part of the pool body is provided with a clean water overflow groove along the circumferential direction.

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