Integrated high-efficiency sedimentation device

Abstract

The present application relates to the technical field of water treatment, in particular to an integrated high-efficiency precipitation device, which comprises a shell, a vortex mixer, a reflux pump, a flow guide cylinder, a lifting type flocculation stirrer, a flocculation reaction cylinder, a water inlet pipe, a dosing ring, a water distribution cap, a backwashing assembly and a discharge assembly; sewage is added with a coagulant and then enters the vortex mixer, enters the flow guide cylinder through the water inlet pipe and the water distribution cap, the flow guide cylinder is provided with the dosing ring, the lifting type flocculation stirrer is adopted, the sewage enters a suspended sludge bed contact area, suspended solids bed particles sink into a sludge area, small sewage is further subjected to solid-liquid separation through the backwashing assembly, and residues at the bottom of the shell are discharged from the discharge assembly; in this way, the mechanical equipment in the precipitation system is effectively reduced, and the transportation cost is reduced on the premise of ensuring the precipitation effect and in accordance with the principles of land saving and convenient transportation.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and in particular to an integrated high-efficiency sedimentation device. Background Technology

[0002] Sedimentation facilities are the most common process in water treatment engineering. In order to improve the sedimentation effect, various forms of sedimentation processes have emerged. Among them, high-density sedimentation tanks are one of the mainstream processes at present. Their main advantages are small footprint, saving of chemicals, and high sludge concentration.

[0003] Currently, there are many machines and equipment for high-density sedimentation tanks, especially the sludge scraper, which is prone to failure. In order to ensure a high sludge discharge concentration, the tank is quite deep. Making it into an integrated device makes it difficult to transport and increases transportation costs. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated and efficient sedimentation device, which aims to solve the problems of the current high-density sedimentation tanks having a lot of machinery and equipment, especially the sludge scraper which is prone to failure. In order to ensure a high sludge discharge concentration, the tank is deep, making it difficult to transport as an integrated device and increasing transportation costs.

[0005] To achieve the above objectives, this invention employs an integrated high-efficiency sedimentation device, comprising a shell, a vortex mixer, a reflux pump, a guide cylinder, a lifting flocculation agitator, a flocculation reaction cylinder, an inlet pipe, a dosing ring, a water distribution cap, a backwashing assembly, and a discharge assembly. The shell is divided into a suspended sludge bed contact zone, a clear water zone, a pre-sedimentation zone, and a sludge zone. The vortex mixer is located on one side of the shell. The inlet pipe communicates with the vortex mixer and is located at the output end of the vortex mixer, and the inlet pipe penetrates the shell. The water distribution cap communicates with the inlet pipe and is located at one end of the inlet pipe. The backwashing assembly is located within the clear water zone. The discharge assembly is located within the sludge zone. One end of the return pump is connected to the inlet pipe and is located on the outer wall of the inlet pipe. The other end of the return pump is connected to the outer casing and is located within the sludge zone. The flocculation reaction cylinders are respectively located in the suspended sludge bed contact zone and the pre-sedimentation zone. The guide cylinder is located inside the flocculation reaction cylinder. The dosing ring is fixedly connected to the guide cylinder and is located on the inner wall of the guide cylinder. The lifting flocculation mixer is rotatably connected to the outer casing and is located above the outer casing. The output end of the lifting flocculation mixer is rotatably engaged with the flocculation reaction cylinder and the guide cylinder, respectively.

[0006] The backwash assembly includes a backwash air pipe and an inclined pipe. The inclined pipe is fixedly connected to the outer shell and is located below the clean water zone. The backwash air pipe passes through the outer shell.

[0007] The discharge assembly includes a discharge pipe and a mud discharge valve. The discharge pipe is connected to the outer shell and is located on the outer side wall of the outer shell. The mud discharge valve is connected to the discharge pipe and is located in the middle of the discharge pipe.

[0008] The integrated high-efficiency sedimentation device also includes a flared mouth, which is fixedly connected to the guide tube and located on the outer wall of the guide tube.

[0009] The vortex mixer includes a tube body, a wedge-shaped dosing port, a spiral mixing element, a vortex baffle, a micro-vortex ball, and micro-vortex blades. The tube body is connected to the inlet pipe and is located at the end of the inlet pipe away from the water distribution cap. The wedge-shaped dosing port is connected to the tube body and is located above the tube body. The spiral mixing element is rotatably connected to the tube body and is located on the inner wall of the tube body. The vortex baffle is fixedly connected to the tube body and is located on the inner wall of the tube body. The micro-vortex ball is fixedly connected to the tube body and is located on the inner wall of the tube body. The micro-vortex blades are movably connected to the tube body and are located on the inner wall of the tube body.

[0010] The flocculation reaction cylinder includes a stirrer connecting sleeve, a reaction cylinder reflector plate, a bottom baffle, and a side baffle. The side baffle has a turbulent water distribution hole adapted to the inlet pipe. The reaction cylinder reflector plate is fixedly connected to the outer shell and located in the contact area between the pre-sedimentation zone and the suspended sludge bed. The side baffle is fixedly connected to the reaction cylinder reflector plate and located below it. The stirrer connecting sleeve is fixedly connected to the reaction cylinder reflector plate and located on the inner side wall of the reflector plate. The stirrer connecting sleeve is rotatably engaged with the lifting flocculation mixer.

[0011] This invention discloses an integrated high-efficiency sedimentation device. Wastewater, after being doped with a coagulant aid, enters through a vortex mixer. Hydraulic mixing is employed, reducing the need for various mechanical equipment. The inlet pipe and distribution cap facilitate uniform water distribution into the guide tube, minimizing water impact within the guide tube and improving flocculation. Instead of a high-density sedimentation tank with planar partitioning, the device is primarily divided into a clear water zone, a suspended sludge bed contact zone, a pre-sedimentation zone, and a sludge zone. A dosing ring within the guide tube ensures uniform chemical distribution. A lift-type flocculation mixer is used, achieving a hydraulic circulation ratio of 8-10:1. Wastewater enters the suspended sludge bed contact zone, where large particles from the suspended bed settle into the sludge bed. In the sludge zone, small particles continue to undergo flocculation on the suspended sludge bed, further increasing their size. The contact zone of the suspended sludge bed serves a triple function of pre-sedimentation, interception, and flocculation. The upward flow velocity of water in the contact zone reaches approximately 30 m / h. After passing through the contact zone, wastewater enters the pre-sedimentation zone, where the upward flow velocity gradually decreases from 30 m / h to 15 m / h. The wastewater undergoes further solid-liquid separation through the backwashing assembly. Liquid meeting effluent requirements is collected in the clear water zone, and the residue at the bottom of the outer shell is discharged through the discharge assembly. This method effectively reduces the amount of mechanical equipment in the sedimentation system and lowers transportation costs while ensuring sedimentation efficiency and adhering to the principles of land conservation and convenient transportation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the integrated high-efficiency precipitation device of the present invention.

[0014] Figure 2 This is a schematic diagram of the vortex mixer of the present invention.

[0015] Figure 3 This is a schematic diagram of the flocculation reaction cylinder of the present invention.

[0016] 101-Outer shell, 102-Vortex mixer, 103-Recirculation pump, 104-Guide cylinder, 105-Lifting flocculation mixer, 106-Flocculation reaction cylinder, 107-Inlet pipe, 108-Dosing ring, 109-Water distribution cap, 110-Backwash assembly, 111-Discharge assembly, 112-Bell mouth, 113-Backwash air pipe, 114-Inclined pipe, 115-Discharge pipe, 116-Sludge discharge valve, 11 7-Pipe body, 118-Wedge-shaped dosing port, 119-Spiral mixing element, 120-Vortex baffle, 121-Micro vortex ball, 122-Micro vortex blade, 123-Agitator connecting sleeve, 124-Reaction cylinder reflector plate, 125-Bottom baffle, 126-Side baffle, 127-Turbulent water distribution hole, 128-Suspended sludge bed contact zone, 129-Clear water zone, 130-Pre-sedimentation zone, 131-Sludge zone. Detailed Implementation

[0017] Please see Figures 1 to 3 The figure, in which, Figure 1 This is a schematic diagram of the overall structure of the integrated high-efficiency precipitation device of the present invention. Figure 2 This is a schematic diagram of the eddy current mixer of the present invention. Figure 3 This is a schematic diagram of the flocculation reaction cylinder of the present invention.

[0018] This invention provides an integrated high-efficiency sedimentation device, comprising a shell 101, a vortex mixer 102, a reflux pump 103, a guide cylinder 104, a lifting flocculation agitator 105, a flocculation reaction cylinder 106, a water inlet pipe 107, a dosing ring 108, a water distribution cap 109, a backwash assembly 110, a discharge assembly 111, and a bell mouth 112. The backwash assembly 110 includes a backwash air pipe 113 and an inclined pipe 114. The discharge assembly 111 includes a discharge pipe 115 and a sludge discharge valve 116. The flow mixer 102 includes a pipe body 117, a wedge-shaped dosing port 118, a spiral mixing element 119, a vortex baffle 120, a micro vortex ball 121, and a micro vortex blade 122. The flocculation reaction cylinder 106 includes a stirrer connecting sleeve 123, a reaction cylinder reflector plate 124, a bottom baffle 125, and a side baffle 126. The side baffle 126 has a turbulent water distribution hole 127. The outer shell 101 divides the suspended sludge bed contact area 128, the clear water area 129, the pre-sedimentation area 130, and the sludge area 131.

[0019] In this specific embodiment, the outer casing 101 is divided into a suspended sludge bed contact area 128, a clear water area 129, a pre-sedimentation area 130, and a sludge area 131. The vortex mixer 102 is disposed on one side of the outer casing 101. The inlet pipe 107 is connected to the vortex mixer 102 and is located at the output end of the vortex mixer 102, and the inlet pipe 107 penetrates the outer casing 101. The water distribution cap 109 is connected to the inlet pipe 107 and is located at one end of the inlet pipe 107. The backwashing assembly 110 is disposed in the clear water area 129. The discharge assembly 111 is disposed in the sludge area 131. One end of the return pump 103 is connected to the inlet pipe 107 and is located at the inlet pipe 107. The outer wall of 07, the other end of the return pump 103 is connected to the outer shell 101 and located in the sludge zone 131, the flocculation reaction cylinder 106 is respectively set in the suspended sludge bed contact zone 128 and the pre-sedimentation zone 130, the guide cylinder 104 is set in the flocculation reaction cylinder 106, the dosing ring 108 is fixedly connected to the guide cylinder 104 and located on the inner side wall of the guide cylinder 104, the lifting flocculation mixer 105 is rotatably connected to the outer shell 101 and located above the outer shell 101, the output end of the lifting flocculation mixer 105 is rotatably engaged with the flocculation reaction cylinder 106 and the guide cylinder 104 respectively, and the wastewater enters from the vortex mixer 102 after the coagulant is added. In this process, hydraulic mixing is employed, reducing the need for various mechanical equipment. Water enters the guide tube 104 via the inlet pipe 107 and the water distribution cap 109, achieving uniform water distribution and reducing the impact of water flow on the water within the guide tube 104, thus improving the flocculation effect. Instead of a high-density sedimentation tank with planar partitioning, the system is mainly divided into a clear water zone 129, a suspended sludge bed contact zone 128, a pre-sedimentation zone 130, and a sludge zone 131. The guide tube 104 contains a dosing ring 108 to ensure uniform distribution of the chemicals. A lifting flocculation mixer 105 is used, achieving a hydraulic circulation ratio of 8-10:1. Wastewater enters the suspended sludge bed contact zone 128, where large particles in the suspended bed are dispersed. The wastewater settles into the sludge zone 131, where small particles continue to undergo flocculation, further increasing their size. The suspended sludge bed contact zone 128 serves a triple function of pre-sedimentation, interception, and flocculation. The upward flow velocity within the contact zone 128 reaches approximately 30 m / h. After passing through the contact zone 128, the wastewater enters the pre-sedimentation zone 130, where the upward flow velocity gradually decreases from 30 m / h to 15 m / h. The wastewater undergoes further solid-liquid separation via the backwashing assembly 110. Liquid meeting effluent requirements is collected in the clear water zone 129. Residue at the bottom of the outer shell 101 is then discharged through the discharge assembly 111. This method ensures effective sedimentation while maintaining the desired sedimentation effect.Based on the principles of saving land and facilitating transportation, the mechanical equipment within the sedimentation system has been effectively reduced, lowering transportation costs.

[0020] The inclined tube 114 is fixedly connected to the outer shell 101 and is located below the clear water zone 129. The backwash air pipe 113 passes through the outer shell 101. The inclined tube 114 isolates the clear water zone 129 from the pre-sedimentation zone 130 on the one hand, and allows the sludge to slide off on its own on the other hand. The backwash air pipe 113 can prevent the inclined tube 114 from being blocked.

[0021] Secondly, the discharge pipe 115 is connected to the outer shell 101 and is located on the outer side wall of the outer shell 101. The sludge discharge valve 116 is connected to the discharge pipe 115 and is located in the middle of the discharge pipe 115. The discharge pipe 115 and the sludge discharge valve 116 are used for the discharge of sediment.

[0022] Meanwhile, the horn 112 is fixedly connected to the guide tube 104 and is located on the outer side wall of the guide tube 104. The horn 112 can increase the outer diameter of the output end of the guide tube 104.

[0023] Additionally, the pipe body 117 is connected to the inlet pipe 107 and is located at the end of the inlet pipe 107 away from the water distribution cap 109; the wedge-shaped dosing port 118 is connected to the pipe body 117 and is located above the pipe body 117; the spiral mixing element 119 is rotatably connected to the pipe body 117 and is located on the inner wall of the pipe body 117; the vortex baffle 120 is fixedly connected to the pipe body 117 and is located on the inner wall of the pipe body 117; and the micro vortex ball... 121 is fixedly connected to the pipe body 117 and located on the inner wall of the pipe body 117. The micro vortex blade 122 is movably connected to the pipe body 117 and located on the inner wall of the pipe body 117. The wedge-shaped dosing port 118 is used to add coagulant aid into the pipe body 117. Then, the spiral mixing element 119, the micro vortex ball 121 and the micro vortex blade 122 cooperate to transport it into the water inlet pipe 107. Hydraulic mixing is used, which can reduce the types of mechanical equipment.

[0024] Finally, the side baffle 126 has a turbulent water distribution hole 127, which is adapted to the inlet pipe 107. The reaction cylinder reflector 124 is fixedly connected to the outer shell 101 and is located in the pre-sedimentation zone 130 and the suspended sludge bed contact zone 128. The side baffle 126 is fixedly connected to the reaction cylinder reflector 124 and is located below the reaction cylinder reflector 124. The agitator connecting sleeve 123 is fixedly connected to the reaction cylinder reflector 124 and is located on the inner side wall of the reaction cylinder reflector 124. The agitator connecting sleeve 123 is rotatably engaged with the lifting flocculation mixer 105. The agitator connecting sleeve 123 is used for the rotation of the lifting flocculation mixer 105. The turbulent water distribution hole 127 is used to connect with the inlet pipe 107. The angle between the reaction cylinder reflector 124 and the side baffle 126 is 45° to 55°.

[0025] When using the integrated high-efficiency sedimentation device of the present invention, the wedge-shaped dosing port 118 is used to add coagulant aid into the pipe body 117, and then the spiral mixing element 119, the micro vortex ball 121 and the micro vortex blade 122 cooperate to transport it into the water inlet pipe 107, and then the water enters the guide tube 104 through the water inlet pipe 107 and the water distribution cap 109, which plays a role in uniform water distribution and at the same time reduces the impact of water flow on the water in the guide tube 104, thereby improving flocculation. The reaction effect is achieved without using a high-density sedimentation tank with planar partitioning. Instead, it is mainly divided into a clear water zone 129, a suspended sludge bed contact zone 128, a pre-sedimentation zone 130, and a sludge zone 131. A dosing ring 108 is installed inside the guide tube 104 to ensure uniform distribution of the chemicals. An elevator-type flocculation mixer 105 is used, achieving a hydraulic circulation ratio of 8-10:1. Wastewater enters the suspended sludge bed contact zone 128, where large particles in the suspended bed settle. The wastewater enters the sludge zone 131, where small particles continue to undergo flocculation on the suspended sludge bed, further increasing their size. The suspended sludge bed contact zone 128 serves a triple function of pre-sedimentation, interception, and flocculation. The upward flow velocity of the water in the suspended sludge bed contact zone 128 reaches approximately 30 m / h. After passing through the suspended sludge bed contact zone 128, the wastewater enters the pre-sedimentation zone 130, where the upward flow velocity gradually decreases from 30 m / h to 15 m / h. After passing through the inclined plate and the backwash air pipe 113, the wastewater undergoes further solid-liquid separation. The clear water zone 129 collects the liquid that meets the effluent requirements. The discharge pipe 115 and the sludge discharge valve 116 are used for discharging the sediment. The backwash air pipe 113 prevents the inclined pipe 114 from being blocked. In this way, while ensuring the sedimentation effect, and adhering to the principles of saving land and facilitating transportation, the mechanical equipment in the sedimentation system is effectively reduced, and transportation costs are lowered.

[0026] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An integrated high-efficiency sedimentation device, characterized in that, The system includes a shell, a vortex mixer, a return pump, a guide cylinder, a lifting flocculation mixer, a flocculation reaction cylinder, an inlet pipe, a dosing ring, a water distribution cap, a backwashing assembly, and a discharge assembly. The shell is divided into a suspended sludge bed contact zone, a clear water zone, a pre-sedimentation zone, and a sludge zone. The vortex mixer is located on one side of the shell. The inlet pipe is connected to the vortex mixer and located at its output end, and it penetrates the shell. The water distribution cap is connected to the inlet pipe and located at one end of the inlet pipe. The backwashing assembly is located in the clear water zone, and the discharge assembly is located in the sludge zone. Within the zone, one end of the return pump is connected to the inlet pipe and located on the outer wall of the inlet pipe; the other end of the return pump is connected to the outer casing and located within the sludge zone; the flocculation reaction cylinders are respectively located in the suspended sludge bed contact zone and the pre-sedimentation zone; the guide cylinder is located inside the flocculation reaction cylinder; the dosing ring is fixedly connected to the guide cylinder and located on the inner wall of the guide cylinder; the lifting flocculation mixer is rotatably connected to the outer casing and located above the outer casing; the output end of the lifting flocculation mixer is rotatably engaged with the flocculation reaction cylinder and the guide cylinder, respectively. The backwash assembly includes a backwash air pipe and an inclined pipe. The inclined pipe is fixedly connected to the outer shell and is located below the clear water zone. The backwash air pipe passes through the outer shell. The inclined pipe isolates the clear water zone from the pre-sedimentation zone on one hand, and allows the sludge to slide off on its own on the other hand. The backwash air pipe prevents the inclined pipe from being blocked. The discharge assembly includes a discharge pipe and a mud discharge valve. The discharge pipe is connected to the outer shell and is located on the outer side wall of the outer shell. The mud discharge valve is connected to the discharge pipe and is located in the middle of the discharge pipe. The vortex mixer includes a tube body, a wedge-shaped dosing port, a spiral mixing element, a vortex baffle, micro-vortex balls, and micro-vortex blades. The tube body is connected to the inlet pipe and is located at the end of the inlet pipe away from the water distribution cap. The wedge-shaped dosing port is connected to the tube body and is located above the tube body. The spiral mixing element is rotatably connected to the tube body and is located on the inner wall of the tube body. The vortex baffle is fixedly connected to the tube body and is located on the inner wall of the tube body. The micro-vortex balls are fixedly connected to the tube body and are located on the inner wall of the tube body. The micro-vortex blades are movably connected to the tube body and are located on the inner wall of the tube body. The wedge-shaped dosing port is used to add coagulant aid into the tube body. The flocculation reaction cylinder includes a stirrer connecting sleeve, a reaction cylinder reflector plate, a bottom baffle, and a side baffle. The side baffle has a turbulent water distribution hole adapted to the inlet pipe. The reaction cylinder reflector plate is fixedly connected to the outer shell and located in the contact area between the pre-sedimentation zone and the suspended sludge bed. The side baffle is fixedly connected to the reaction cylinder reflector plate and located below it. The stirrer connecting sleeve is fixedly connected to the reaction cylinder reflector plate and located on the inner side wall of the reflector plate. The stirrer connecting sleeve is rotatably engaged with the lifting flocculation mixer. The stirrer connecting sleeve is used for the rotation of the lifting flocculation mixer. The included angle between the reaction cylinder reflector plate and the side baffle is 45°~55°. After the addition of coagulant, the wastewater enters from the vortex mixer, flows through the inlet pipe and the distribution cap into the guide tube, and after passing through the flocculation reaction tube, the wastewater enters the suspended sludge bed contact zone. Large particles in the suspended sludge bed settle into the sludge zone. After passing through the suspended sludge bed contact zone, the wastewater enters the pre-sedimentation zone. After passing through the inclined pipe and the backwash air pipe, the wastewater undergoes further solid-liquid separation. The clear water zone collects the liquid that meets the effluent requirements. The discharge pipe and the sludge discharge valve are used for the discharge of sediment.

2. The integrated high-efficiency precipitation device as described in claim 1, characterized in that, The integrated high-efficiency sedimentation device also includes a flared mouth, which is fixedly connected to the guide tube and located on the outer wall of the guide tube.

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