Industrial wastewater deep purification treatment equipment and process

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to industrial wastewater deep purification treatment equipment and a process, the industrial wastewater deep purification treatment equipment comprises a wastewater inlet pipe, and further comprises a physical filtering mechanism, a chemical precipitation mechanism, an aeration treatment mechanism, a water passing pipe, a water passing resistance feedback mechanism, a viscosity detection mechanism, a viscosity feedback mechanism and a PLC (Programmable Logic Controller). The blockage condition in the filtering equipment can be automatically judged based on the filtering pressure, so that a worker is more accurately reminded to carry out corresponding cleaning work, the dosage and the stirring speed can be automatically adjusted based on the viscosity of the wastewater, the higher the viscosity of the wastewater is, the more the dosage is, the higher the stirring speed is, and the higher the cleaning efficiency is. The aeration speed can be automatically regulated and controlled based on the stirring speed in the chemical precipitation process, and the higher the stirring speed is, the higher the aeration speed is.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an industrial wastewater deep purification treatment device and process. Background Art

[0002] Industrial wastewater deep purification treatment equipment is an important facility for further purification of industrial wastewater. It adopts a variety of advanced treatment technologies to remove various pollutants in the wastewater, including organic matter, heavy metals, suspended solids, etc. It can significantly reduce the pollutant content in the wastewater to meet national emission standards or even higher water quality requirements, effectively reducing pollution to the environment.

[0003] In the deep purification treatment of industrial wastewater, most of them have to go through three steps: physical filtration, chemical precipitation and aeration treatment. In physical filtration, suspended matter and sediment in the wastewater will accumulate inside the equipment. In order to ensure the smoothness of wastewater treatment, the filtration equipment needs to be cleaned regularly. Regular cleaning cannot accurately judge the actual situation of sediment in the filtration equipment. Cleaning when there is not much sediment will lead to unnecessary waste of manpower, material resources and time. When the wastewater contains a lot of impurities, the relatively long cleaning interval will cause the sediment to accumulate in large quantities, which will seriously affect the filtration effect and water flow of the filtration equipment before cleaning, missing the best cleaning time and affecting the operation efficiency of the entire wastewater treatment system. Summary of the invention

[0004] The purpose of the present invention is to provide an industrial wastewater deep purification treatment equipment and process in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical scheme: an industrial wastewater deep purification treatment equipment, including a wastewater inlet pipe, and also including: A physical filtering mechanism, fixedly connected to the wastewater inlet pipe; A chemical precipitation mechanism is arranged at the rear end of the physical filtering mechanism; An aeration treatment mechanism is installed at the rear end of the chemical precipitation mechanism; A water pipe connected to the physical filtering mechanism, the chemical precipitation mechanism and the aeration treatment mechanism; A water flow resistance feedback mechanism is installed in the physical filtering mechanism; A viscosity detection mechanism, mounted on the chemical precipitation mechanism; A viscosity feedback mechanism is mounted on the chemical precipitation mechanism; The PLC controller is electrically connected to the physical filtering mechanism, the chemical precipitation mechanism, the aeration treatment mechanism, the water flow resistance feedback mechanism, the viscosity detection mechanism and the viscosity feedback mechanism respectively.

[0006] In the above-mentioned industrial wastewater deep purification treatment equipment, the physical filtering mechanism includes a filter shell, the wastewater inlet pipe is fixedly connected to the lower end side wall of the filter shell, one end of the water pipe is fixedly connected to the lower end of the filter shell, and a one-way valve is installed on the wastewater inlet pipe and the water pipe. The upper end of the filter shell is fixedly sleeved with an electric push rod, and the lower movable end of the electric push rod is fixedly connected to a hollow pressure plate, and a pressure piston is provided on the lower side of the pressure plate to seal the filter shell. The pressure piston The upper end of the filter housing is symmetrically fixedly connected to a plurality of limit sliding rods, the upper end of the limit sliding rod passes through the upper end of the pressure plate, a plurality of squeezing springs sleeved on the outside of the limit sliding rod are fixedly connected between the pressure piston and the pressure plate, a filter screen plate is fixedly installed on the lower inner side of the filter housing, a plurality of electric telescopic rods are fixedly connected to the rear side of the lower end of the filter housing, the moving ends of the plurality of electric telescopic rods extend into the filter housing and are fixedly connected to the same scraper plate, and a cleaning door corresponding to the position of the filter screen plate is installed on the front side of the filter housing.

[0007] In the above-mentioned industrial wastewater deep purification treatment equipment, the chemical precipitation mechanism includes a sedimentation tank, and the upper outer wall of the sedimentation tank is symmetrically fixed with two longitudinally arranged electric slide rails, the moving ends of the two electric slide rails are fixedly connected with the same U-shaped moving plate, the horizontal part of the U-shaped moving plate is rotatably sleeved with a stirring rod, the upper end of the U-shaped moving plate is fixedly provided with a stirring motor for driving the stirring rod to rotate, the viscosity detection mechanism is arranged between the output end of the stirring motor and the upper end of the stirring rod, and the lower end of the horizontal part of the U-shaped moving plate is symmetrically fixed with two dosing heads, the two dosing heads are fixedly connected with the same dosing pipe, the dosing pipe is provided with a dosing pump, and the dosing pump is fixedly provided at the upper end of the U-shaped moving plate.

[0008] In the above-mentioned industrial wastewater deep purification treatment equipment, the aeration treatment mechanism includes an aeration tank, an aeration pipe network is installed at the bottom of the inner wall of the aeration tank, and an aeration fan for supplying air to the aeration pipe network is fixedly installed on the outside of the aeration tank.

[0009] In the above-mentioned industrial wastewater deep purification treatment equipment, the water flow resistance feedback mechanism includes a transmission rack fixedly mounted on the upper end of the pressurizing piston, the upper end of the transmission rack passes through the pressure plate, a transmission screw is rotatably connected in the pressure plate, one end of the transmission screw is fixedly connected to a transmission gear meshing with the transmission rack, a trigger plate is threadedly sleeved on the rod wall of the transmission screw, two side plates are symmetrically fixedly mounted on one side of the bottom of the inner wall of the pressure plate, a plurality of guide sliding rods arranged side by side are fixedly connected between the two side plates, a plurality of guide sliding rods are slidably sleeved on the outside of the plurality of guide sliding rods, a plurality of return springs sleeved on the outside of the guide sliding rods are fixedly connected between the sliding plate and the side plate, a thrust permanent magnet plate is fixedly connected on the side of the sliding plate away from the return spring, a thrust electromagnetic plate is fixedly mounted on the side wall of the side plate, and a trigger switch arranged opposite to the trigger plate is fixedly mounted on the upper side wall of the sliding plate.

[0010] In the above-mentioned industrial wastewater deep purification treatment equipment, the viscosity detection mechanism includes an outward-expanding circular plate fixedly sleeved on the rod wall at the upper end of the stirring rod, the lower output end of the stirring motor is fixedly connected to a rotating cylinder, the upper end of the stirring rod and the rotating cylinder are rotatably connected, a torsion spring sleeved on the outside of the stirring rod is fixedly connected between the outward-expanding circular plate and the rotating cylinder, an adjusting resistor rod with an annular structure is fixedly installed on the outward-expanding circular plate, an adjusting conductive contact electrically in contact with the adjusting resistor rod is fixedly installed on the top of the inner wall of the rotating cylinder, and the rotating cylinder and the outward-expanding circular plate are connected by a locking mechanism.

[0011] In the above-mentioned industrial wastewater deep purification treatment equipment, the viscosity feedback mechanism includes a feedback shell, the inner wall of the feedback shell is fixedly mounted with a plurality of friction rods arranged side by side, the plurality of friction rods are externally slidably sleeved with the same feedback plate, the side wall of the feedback plate is fixedly connected with a force-bearing permanent magnetic plate, the inner wall of the feedback shell is fixedly mounted with a force-applying electromagnetic plate arranged opposite to the force-bearing permanent magnetic plate, the inner wall of the feedback shell is also fixedly mounted with a feedback resistor rod arranged parallel to the friction rod, and the outer wall of the feedback plate is fixedly mounted with a feedback conductive contact piece electrically in contact with the feedback resistor rod.

[0012] In the above-mentioned industrial wastewater deep purification treatment equipment, the locking mechanism includes a plurality of locking rods movably inserted in the lower end of the rotating cylinder, the inner wall of the rotating cylinder is provided with a cavity for placing the locking rod, the surface of the outwardly expanded circular plate is provided with a locking hole matching and plugging with the locking rod, the upper end of the locking rod is fixedly connected with a lifting plate, the lower end of the lifting plate and the bottom of the inner wall of the corresponding cavity of the rotating cylinder are fixedly provided with a locking spring sleeved on the outside of the locking rod, the upper end of the lifting plate is fixedly provided with a suction permanent magnetic plate, and the top of the inner wall of the corresponding cavity of the rotating cylinder is fixedly provided with a suction electromagnetic plate arranged opposite to the suction permanent magnetic plate.

[0013] A deep purification process for industrial wastewater, comprising the following steps: S1. The physical filtration mechanism can filter and treat industrial wastewater by actively pressurizing it. The water resistance feedback mechanism can automatically determine the blockage situation in the filtration equipment based on the filtration pressure, and then more accurately remind the staff to perform the corresponding cleaning work; S2. The chemical precipitation mechanism makes heavy metal ions react with the precipitant to form insoluble precipitates, thereby separating them from the wastewater, and effectively separating the colloids and suspended solids in the wastewater, thereby improving the purification quality of the wastewater. The viscosity detection mechanism and the viscosity feedback mechanism are used to automatically adjust the dosage and stirring speed based on the viscosity of the wastewater; S3. The aeration treatment mechanism injects oxygen into the wastewater to keep the microorganisms in the wastewater in an aerobic state. In the aeration tank, the microorganisms decompose the organic matter in the wastewater into inorganic matter through metabolism, and at the same time convert ammonia nitrogen into nitrate nitrogen. The aeration speed is automatically adjusted to ensure that the microorganisms have enough oxygen to carry out metabolic activities.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the physical filtering mechanism, water resistance feedback mechanism and viscosity feedback mechanism, the industrial wastewater can be filtered and treated by active pressurization. Compared with the traditional state of filtering wastewater by natural gravity, it can be better suitable for occasions with requirements for wastewater treatment efficiency and speed. By actively increasing the pressure, the flow rate of wastewater in the filtering equipment can be increased, thereby shortening the filtration time and improving the treatment efficiency. It can also automatically judge the blockage situation in the filtering equipment based on the filtering pressure, and then more accurately remind the staff to carry out the corresponding cleaning work, avoiding cleaning when there is not much sediment, which will lead to unnecessary waste of manpower, material resources and time. When the impurity content in the wastewater is high, the relatively long cleaning interval will cause a large amount of sediment to accumulate, affecting the operation efficiency of the entire wastewater treatment system.

[0015] 2. Through the chemical precipitation mechanism, viscosity detection mechanism and viscosity feedback mechanism, heavy metal ions can react with the precipitant to form insoluble precipitates through chemical precipitation, thereby separating them from the wastewater, and effectively separating the colloids and suspended matter in the wastewater, thereby improving the purification quality of the wastewater, and can automatically adjust the dosage and stirring speed based on the viscosity of the wastewater. The greater the viscosity of the wastewater, the more the dosage and the faster the stirring speed. Because wastewater with high viscosity usually contains higher concentrations of colloids, suspended matter and organic matter, it will consume more reagents, so more reagents are needed to treat the wastewater, and wastewater with high viscosity will affect the diffusion of the reagents. Increasing the stirring speed can accelerate the mixing of the reagents and wastewater, and increase the reaction rate.

[0016] 3. Through the aeration treatment mechanism, oxygen can be added to the wastewater to make the microorganisms in the wastewater in an aerobic state. In the aeration tank, the microorganisms decompose the organic matter in the wastewater into inorganic matter through metabolism, and convert ammonia nitrogen into nitrate nitrogen. The aeration speed can be automatically adjusted based on the stirring speed in the chemical precipitation process. The faster the stirring speed, the greater the aeration speed. Because in mechanical stirring, the friction between the blades of the stirrer and the wastewater will generate heat, especially in the case of high-speed stirring or long-term stirring. The accumulation of heat will increase the temperature of the wastewater. As the water temperature increases, the solubility of oxygen in the water will decrease significantly. At higher temperatures, the amount of oxygen that can be dissolved in the wastewater will be reduced. The amount of oxygen decreases, which reduces the dissolved oxygen available to microorganisms. Increasing the aeration volume can increase the dissolved oxygen content in the wastewater and ensure that the microorganisms have enough oxygen to carry out metabolic activities, which helps to maintain the activity and growth and reproduction of the microorganisms, thereby ensuring the normal operation of the wastewater treatment system. The more chemicals are added, the slower the working speed of the physical filtration mechanism is controlled, which in turn reduces the speed of wastewater entry and increases the aeration time in the aeration tank. Because chemical agents have certain toxicity and will inhibit the growth and metabolism of microorganisms, the more chemicals are added, the greater the impact on the microorganisms. At this time, extending the aeration time can allow the microorganisms more time to adapt to the environment and restore activity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional structural schematic diagram of an industrial wastewater deep purification treatment equipment provided by the present invention; Figure 2 It is a three-dimensional structural schematic diagram of a physical filtering mechanism of an industrial wastewater deep purification treatment device provided by the present invention; Figure 3 It is a front view cross-sectional structural schematic diagram of a physical filtering mechanism of an industrial wastewater deep purification treatment device provided by the present invention; Figure 4 It is a side view cross-sectional structural schematic diagram of a physical filtering mechanism of an industrial wastewater deep purification treatment equipment provided by the present invention; Figure 5 It is a cross-sectional structural schematic diagram of a chemical precipitation mechanism of an industrial wastewater deep purification treatment equipment provided by the present invention; Figure 6 It is a cross-sectional structural schematic diagram of an aeration treatment mechanism of an industrial wastewater deep purification treatment equipment provided by the present invention; Figure 7 It is a cross-sectional structural schematic diagram of a water flow resistance feedback mechanism of an industrial wastewater deep purification treatment equipment provided by the present invention; Figure 8 yes Figure 7 A magnified view of part A; Fig. 9It is a three-dimensional structural schematic diagram of a viscosity detection mechanism of an industrial wastewater deep purification treatment device provided by the present invention; Fig.10 It is a cross-sectional structural schematic diagram of a viscosity detection mechanism of an industrial wastewater deep purification treatment device provided by the present invention; Fig.11 It is a cross-sectional structural schematic diagram of a viscosity feedback mechanism of an industrial wastewater deep purification treatment device provided by the present invention; Fig.12 It is a schematic cross-sectional structure diagram of a locking mechanism of an industrial wastewater deep purification treatment device provided by the present invention.

[0018] In the figure: 1 wastewater inlet pipe, 2 physical filtering mechanism, 21 filter shell, 22 electric push rod, 23 pressure plate, 24 pressure piston, 25 limit slide rod, 26 squeeze spring, 27 filter screen plate, 28 electric telescopic rod, 29 scraper plate, 210 cleaning door, 3 chemical precipitation mechanism, 31 sedimentation tank, 32 electric slide rail, 33 U-shaped moving plate, 34 stirring rod, 35 stirring motor, 36 dosing head, 37 dosing pipe, 38 dosing pump, 4 aeration treatment mechanism, 41 aeration tank, 42 ​​aeration pipe network, 43 aeration fan, 5 water resistance feedback mechanism, 51 transmission rack, 52 transmission screw, 53 transmission gear, 54 trigger plate , 55 side plate, 56 guide slide bar, 57 sliding plate, 58 return spring, 59 thrust permanent magnet plate, 510 thrust electromagnetic plate, 511 trigger switch, 6 viscosity detection mechanism, 61 outward expansion circular plate, 62 rotating cylinder, 63 torsion spring, 64 adjustment resistance rod, 65 adjustment conductive contact, 7 viscosity feedback mechanism, 71 feedback shell, 72 friction rod, 73 feedback plate, 74 force permanent magnet plate, 75 force electromagnetic plate, 76 feedback resistance rod, 77 feedback conductive contact, 8 locking mechanism, 81 locking rod, 82 locking hole, 83 lifting plate, 84 locking spring, 85 suction permanent magnet plate, 86 suction electromagnetic plate, 9 water pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 12 As shown, an industrial wastewater deep purification treatment equipment includes a wastewater inlet pipe 1 and also includes: The physical filtering mechanism 2 is fixedly connected to the wastewater inlet pipe 1. The physical filtering mechanism 2 includes a filter shell 21. The wastewater inlet pipe 1 is fixedly connected to the lower end side wall of the filter shell 21. One end of the water pipe 9 is fixedly connected to the lower end of the filter shell 21. A one-way valve is installed on the wastewater inlet pipe 1 and the water pipe 9. An electric push rod 22 is fixedly inserted into the upper end of the filter shell 21. The lower movable end of the electric push rod 22 is fixedly connected to a pressure plate 23 with a hollow structure. A pressure piston 24 is provided on the lower side of the pressure plate 23, and a plurality of limit slide rods 25 are symmetrically fixedly connected to the upper end of the pressure piston 24. The upper end of the limit slide rod 25 passes through the upper end of the pressure plate 23. A plurality of sleeves are fixedly connected between the pressure piston 24 and the pressure plate 23. A pushing spring 26 is outside the limiting slide bar 25, and a filter screen plate 27 is fixedly installed on the lower inner side of the filter shell 21. A plurality of electric telescopic rods 28 are fixedly connected to the rear lower end of the filter shell 21. The movable ends of the plurality of electric telescopic rods 28 extend into the filter shell 21 and are fixedly connected to the same scraper plate 29. A cleaning door 210 corresponding to the position of the filter screen plate 27 is installed on the front side of the filter shell 21. The industrial wastewater can be filtered and treated by active pressurization. Compared with the traditional state of filtering wastewater by natural gravity, it can be better suitable for occasions that require wastewater treatment efficiency and speed. By actively increasing the pressure, the flow rate of wastewater in the filtering equipment can be increased, thereby shortening the filtration time and improving the treatment efficiency.

[0021] The chemical precipitation mechanism 3 is arranged at the rear end of the physical filtration mechanism 2. The chemical precipitation mechanism 3 includes a precipitation tank 31. Two longitudinally arranged electric slide rails 32 are symmetrically fixedly arranged on the upper outer wall of the precipitation tank 31. The moving ends of the two electric slide rails 32 are fixedly connected with the same U-shaped moving plate 33. The horizontal part of the U-shaped moving plate 33 is rotatably sleeved with a stirring rod 34. A stirring motor 35 for driving the stirring rod 34 to rotate is fixedly arranged on the upper end of the U-shaped moving plate 33. The viscosity detection mechanism 6 is arranged at the output of the stirring motor 35. Between the upper end of the U-shaped movable plate 33 and the upper end of the stirring rod 34, two dosing heads 36 are symmetrically fixedly installed at the lower end of the horizontal part of the U-shaped movable plate 33, and the two dosing heads 36 are fixedly connected with the same dosing pipe 37, and a dosing pump 38 is installed on the dosing pipe 37. The dosing pump 38 is fixedly installed at the upper end of the U-shaped movable plate 33. Through chemical precipitation, heavy metal ions can react with the precipitant to form insoluble precipitates, thereby separating them from the wastewater, and effectively separating the colloids and suspended matter in the wastewater, thereby improving the purification quality of the wastewater.

[0022] The aeration treatment mechanism 4 is installed at the rear end of the chemical precipitation mechanism 3. The aeration treatment mechanism 4 includes an aeration tank 41. An aeration pipe network 42 is installed at the bottom of the inner wall of the aeration tank 41. An aeration fan 43 for supplying air to the aeration pipe network 42 is fixedly installed on the outer side of the aeration tank 41. Oxygen can be filled into the wastewater to put the microorganisms in the wastewater in an aerobic state. In the aeration tank 41, the microorganisms decompose the organic matter in the wastewater into inorganic matter through metabolism, and convert ammonia nitrogen into nitrate nitrogen.

[0023] A water pipe 9 is connected to the physical filtering mechanism 2, the chemical precipitation mechanism 3 and the aeration treatment mechanism 4; The water resistance feedback mechanism 5 is installed in the physical filtering mechanism 2. The water resistance feedback mechanism 5 includes a transmission rack 51 fixedly installed on the upper end of the pressurizing piston 24. The upper end of the transmission rack 51 penetrates the pressurizing plate 23. A transmission screw 52 is rotatably connected in the pressurizing plate 23. One end of the transmission screw 52 is fixedly connected to a transmission gear 53 meshing with the transmission rack 51. A trigger plate 54 is threadedly sleeved on the rod wall of the transmission screw 52. Two side plates 55 are symmetrically fixedly installed on one side of the bottom of the inner wall of the pressurizing plate 23. A plurality of guide slide rods 56 arranged side by side are fixedly connected between the two side plates 55. The sliding rod 56 is slidably sleeved with a sliding plate 57 on the outside, and a plurality of return springs 58 sleeved on the outside of the guide sliding rod 56 are fixedly connected between the sliding plate 57 and the side plate 55. A thrust permanent magnet plate 59 is fixedly connected to the side of the sliding plate 57 away from the return spring 58. A thrust electromagnetic plate 510 arranged opposite to the thrust permanent magnet plate 59 is fixedly installed on the side wall of the side plate 55. A trigger switch 511 arranged opposite to the trigger plate 54 is fixedly installed on the upper side wall of the sliding plate 57, which can automatically judge the blockage condition in the filtering equipment based on the filtering pressure, and thus more accurately remind the staff to perform corresponding cleaning work.

[0024] The viscosity detection mechanism 6 is installed on the chemical precipitation mechanism 3. The viscosity detection mechanism 6 includes an outward-expanding circular plate 61 fixedly sleeved on the upper end rod wall of the stirring rod 34. The lower end output end of the stirring motor 35 is fixedly connected with a rotating cylinder 62. The upper end of the stirring rod 34 and the rotating cylinder 62 are rotatably connected. A torsion spring 63 sleeved on the outside of the stirring rod 34 is fixedly connected between the outward-expanding circular plate 61 and the rotating cylinder 62. An adjusting resistor rod 64 with a ring structure is fixedly installed on the outward-expanding circular plate 61. An adjusting conductive contact 65 in electrical contact with the adjusting resistor rod 64 is fixedly installed on the top of the inner wall of the rotating cylinder 62. The rotating cylinder 62 and the outward-expanding circular plate 61 are connected by a locking mechanism 8, and can automatically adjust the dosage and stirring speed based on the viscosity of the wastewater.

[0025] The viscosity feedback mechanism 7 is installed on the chemical precipitation mechanism 3. The viscosity feedback mechanism 7 includes a feedback shell 71. The inner wall of the feedback shell 71 is fixedly provided with a plurality of friction rods 72 arranged side by side. The plurality of friction rods 72 are slidably sleeved with the same feedback plate 73. The side wall of the feedback plate 73 is fixedly connected with a force-bearing permanent magnetic plate 74. The inner wall of the feedback shell 71 is fixedly provided with a force-applying electromagnetic plate 75 arranged opposite to the force-bearing permanent magnetic plate 74. The inner wall of the feedback shell 71 is also fixedly provided with a feedback resistor rod 76 arranged parallel to the friction rod 72. The outer wall of the feedback plate 73 is fixedly provided with a feedback conductive contact piece 77 in electrical contact with the feedback resistor rod 76.

[0026] The locking mechanism 8 includes a plurality of locking rods 81 movably inserted in the lower end of the rotating cylinder 62. A cavity is provided on the inner wall of the rotating cylinder 62 for placing the locking rod 81. A locking hole 82 is provided on the surface of the outwardly expanded circular plate 61 for matching and plugging with the locking rod 81. A lifting plate 83 is fixedly connected to the upper end of the locking rod 81. A locking spring 84 is fixedly installed on the lower end of the lifting plate 83 and the bottom of the inner wall of the corresponding cavity of the rotating cylinder 62 and is sleeved on the outside of the locking rod 81. A permanent magnetic plate 85 is fixedly installed on the upper end of the lifting plate 83. A suction electromagnetic plate 86 arranged opposite to the suction permanent magnetic plate 85 is fixedly installed on the top of the inner wall of the corresponding cavity of the rotating cylinder 62.

[0027] The PLC controller is electrically connected to the physical filtering mechanism 2, the chemical precipitation mechanism 3, the aeration treatment mechanism 4, the water flow resistance feedback mechanism 5, the viscosity detection mechanism 6 and the viscosity feedback mechanism 7 respectively.

[0028] The operating principle of the present invention is described as follows: when industrial wastewater is treated, the PLC controller controls the electric push rod 22 to push the pressure plate 23 and the pressure piston 24 downward, and the pressure piston 24 provides an active pressure to the wastewater in the filter housing 21, so that the wastewater can be quickly filtered through the filter screen 27 and transported to the chemical precipitation mechanism 3 at the rear side through the water pipe 9. When the electric push rod 22 drives the pressure piston 24 to move upward, a negative pressure suction force is provided in the filter housing 21, and then the industrial wastewater is pumped into the filter housing 21 again in cooperation with the wastewater inlet pipe 1, and the physical filtration treatment of the wastewater is continued; After the filtered wastewater is sent into the sedimentation tank 31, the PLC controller controls the electric slide 32, the stirring motor 35 and the dosing pump 38 to work. The dosing pump 38 cooperates with the dosing pipe 37 to deliver the chemical agent to the sedimentation tank 31 through the dosing head 36. The stirring motor 35 drives the stirring rod 34 to rotate, so that the chemical agent and the wastewater are quickly mixed. The electric slide 32 drives the U-shaped moving plate 33 to move back and forth, so that the action range of the chemical agent is more comprehensive, and the chemical precipitation work is performed on the wastewater. The work of the chemical precipitation mechanism 3 is based on the work of the physical filtering mechanism 2. Whenever the wastewater in the filter shell 21 is delivered to the sedimentation tank 31, the chemical precipitation mechanism 3 works once to treat the wastewater. The wastewater after chemical precipitation is then transported to the aeration tank 41 through the water pipe 9. The aeration fan 43 cooperates with the aeration pipe network 42 to transport oxygen in the aeration tank 41, so that the microorganisms in the wastewater are in an aerobic state. In the aeration tank 41, the microorganisms decompose the organic matter in the wastewater into inorganic matter through metabolism, and convert ammonia nitrogen into nitrate nitrogen. When the wastewater is physically filtered, when the resistance of the wastewater passing through the filter screen plate 27 increases due to the blockage of the filter screen plate 27, a greater pressure is required to ensure the speed of the wastewater passing through the filter screen plate 27. At this time, the pressurizing piston 24 will have a greater moving distance relative to the pressurizing plate 23, thereby causing the squeezing spring 26 to produce a greater deformation, thereby providing a greater pressure. When the pressurizing piston 24 moves relative to the pressurizing plate 23, the transmission rack 51 moves relative to the transmission gear 53, thereby causing the transmission gear 53 to drive the transmission screw 52 to rotate. The threaded sleeve connection between the transmission screw 52 and the trigger plate 54 causes the trigger plate 54 to move in the pressurizing plate 23. When the filter screen plate 27 is seriously blocked and needs to be cleaned, At this time, the moving distance of the pressurizing piston 24 relative to the pressurizing plate 23 reaches the threshold value, and the trigger plate 54 will also move a greater distance, so that the trigger plate 54 presses on the trigger switch 511. The PLC controller receives the feedback signal of the trigger switch 511, and first controls the electric push rod 22 to drive the pressurizing piston 24 to move to the uppermost position. The PLC controller synchronously controls the action of the electric telescopic rod 28, and the electric telescopic rod 28 pushes the scraper plate 29 to move, thereby pushing the impurities accumulated on the filter screen plate 27 to one side, reducing the blockage of the filter screen plate 27, and continuing the wastewater filtering operation. After the scraper plate 29 is used to clean the filter screen plate 27, the PLC controller times through the internal timing module, and within 5 minutes. If the trigger switch 511 is pressed again, it means that the filter screen 27 is blocked and cannot be cleaned by the scraper plate 29. At this time, the PLC controller sends a wireless signal to the receiving terminal of the staff, reminding the staff to clean the filter screen 27 in the filter housing 21. The staff can quickly clean the filter screen 27 through the cleaning door 210 on the filter housing 21. When the chemical precipitation mechanism 3 is used, initially, the PLC controller first controls the power supply device to supply power to the suction electromagnetic plate 86. The suction electromagnetic plate 86 is energized to generate a magnetism opposite to that of the suction permanent magnet plate 85, thereby generating an attraction to the lifting plate 83. The lifting plate 83 drives the locking rod 81 to move upward, so that the locking rod 81 is disengaged from the locking hole 82, and the limit lock between the rotating cylinder 62 and the outward expansion circular plate 61 is released. The PLC controller then controls the stirring motor 35 to operate at a fixed speed, and then drives the stirring rod 34 to rotate in the wastewater through the connection of the torsion spring 63. The resistance of the stirring rod 34 in the wastewater is proportional to the viscosity of the wastewater. The greater the viscosity of the wastewater, the greater the rotational resistance of the stirring rod 34, which will cause the torsion spring 63 to produce a greater deformation to provide a rotational force. At this time, adjusting the conductive contact 65 will produce a greater displacement relative to the adjusting resistor rod 64, so that the adjustment The access resistance of the resistor rod 64 is smaller, and the regulating conductive contact 65 and the regulating resistor rod 64 are connected in series to the power supply circuit of the force electromagnetic plate 75. When the viscosity of the wastewater is large, the access resistance of the regulating resistor rod 64 is small, and the power supply current of the force electromagnetic plate 75 is larger, so that the force electromagnetic plate 75 is energized to generate the same and larger magnetism as the force-bearing permanent magnet plate 74, driving the feedback plate 73 to slide along the friction rod 72 for a larger distance, thereby making the feedback conductive contact 77 slide on the feedback resistor rod 76 for a larger distance, so that the access resistance of the feedback resistor rod 76 is smaller. After the viscosity detection of the wastewater is completed, the PLC controller controls the stirring motor 35 to stop, and controls the power supply equipment to cut off the power supply to the suction electromagnetic plate 86. Under the reset action of the locking spring 84, the locking rod 81 is inserted into the locking hole 82 again, so as to achieve a re-firm connection between the outward expansion circular plate 61 and the rotating cylinder 62; First, the feedback conductive contact 77 and the feedback resistor rod 76 are connected in series to the power supply circuit of the thrust electromagnetic plate 510. When the viscosity of the wastewater increases, the access resistance of the feedback resistor rod 76 becomes smaller. The thrust electromagnetic plate 510 is energized to generate a magnetic force that is the same as but greater than that of the thrust permanent magnet plate 59, thereby driving the sliding plate 57 to slide a greater distance along the guide slide rod 56 to overcome the elastic force of the return spring 58, so that the interval between the trigger switch 511 and the trigger plate 54 becomes larger, and the pressurizing piston 24 needs to provide a larger pressurizing force to press and trigger the trigger switch 511, thereby cleaning the filter screen plate 27. Because the greater the viscosity of the wastewater, the greater the resistance of the wastewater to pass through the filter screen plate 27. This compensation measure can avoid the problem of the trigger switch 511 being pressed and triggered too early due to the high viscosity of the wastewater itself, thereby wasting cleaning resources. The feedback conductive contact 77 and the feedback resistor rod 76 are also connected in series to the power supply circuit of the stirring motor 35 and the dosing pump 38. The stirring motor 35 and the dosing pump 38 are DC motor devices. The greater the viscosity of the wastewater, the smaller the access resistance of the feedback resistor rod 76, the greater the power supply current of the stirring motor 35 and the dosing pump 38, and thus the higher the power of the stirring motor 35 and the dosing pump 38, thereby increasing the amount of chemical agents added and the stirring speed, and achieving more accurate and high-quality chemical precipitation work on the wastewater; The feedback conductive contact 77 and the feedback resistor rod 76 are also connected in series to the power supply circuit of the aeration fan 43. When the access resistance of the feedback resistor rod 76 is small, the stirring speed in the sedimentation tank 31 is faster, and the power of the aeration fan 43 is also increased accordingly, thereby increasing the aeration speed. This is because during mechanical stirring, the friction between the blades of the stirrer and the wastewater will generate heat, especially in the case of high-speed stirring or long-term stirring. The accumulation of heat will increase the temperature of the wastewater. As the water temperature increases, the solubility of oxygen in the water will decrease significantly. At higher temperatures, the amount of oxygen that can be dissolved in the wastewater decreases, which reduces the dissolved oxygen available to microorganisms. Increasing the aeration volume can increase the dissolved oxygen content in the wastewater, ensuring that the microorganisms have enough oxygen to carry out metabolic activities, which helps to maintain the activity and growth and reproduction of the microorganisms, thereby ensuring the normal operation of the wastewater treatment system. The resistance signals of the feedback conductive contact 77 and the feedback resistor rod 76 are also fed back to the PLC controller. When the access resistance of the feedback resistor rod 76 is smaller, the amount of chemical agent added increases, and the PLC controller controls the working frequency of the physical filtration mechanism 2 to be lower, thereby reducing the speed of wastewater introduction and increasing the aeration time in the aeration tank 41. Because chemical agents have certain toxicity and will inhibit the growth and metabolism of microorganisms, the more chemical agents are added, the greater the impact on the microorganisms. At this time, extending the aeration time can allow the microorganisms to have more time to adapt to the environment and restore activity.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An industrial wastewater deep purification treatment device, comprising a wastewater inlet pipe (1), characterized in that: Also includes: A physical filtering mechanism (2) is fixedly connected to the wastewater inlet pipe (1); A chemical precipitation mechanism (3) is arranged at the rear end of the physical filtering mechanism (2); An aeration treatment mechanism (4) is arranged at the rear end of the chemical precipitation mechanism (3); A water pipe (9) connected to the physical filtering mechanism (2), the chemical precipitation mechanism (3) and the aeration treatment mechanism (4); A water flow resistance feedback mechanism (5) is installed in the physical filtering mechanism (2); A viscosity detection mechanism (6) is mounted on the chemical precipitation mechanism (3); A viscosity feedback mechanism (7) is mounted on the chemical precipitation mechanism (3); The PLC controller is electrically connected to the physical filtering mechanism (2), the chemical precipitation mechanism (3), the aeration treatment mechanism (4), the water flow resistance feedback mechanism (5), the viscosity detection mechanism (6) and the viscosity feedback mechanism (7), respectively.

2. The industrial wastewater deep purification treatment equipment according to claim 1 is characterized in that: The physical filtering mechanism (2) comprises a filter shell (21), the wastewater inlet pipe (1) is fixedly connected to the side wall of the lower end of the filter shell (21), one end of the water pipe (9) is fixedly connected to the lower end of the filter shell (21), and one-way valves are installed on the wastewater inlet pipe (1) and the water pipe (9). An electric push rod (22) is fixedly inserted into the upper end of the filter shell (21), and a hollow pressure plate (23) is fixedly connected to the lower movable end of the electric push rod (22). A pressure piston (24) is provided on the lower side of the pressure plate (23) and is sealed with the filter shell (21). The upper end of the pressure piston (24) is symmetrically fixedly connected to a plurality of limit valves. A slide bar (25), the upper end of the limit slide bar (25) passes through the upper end of the pressure plate (23), a plurality of squeezing springs (26) sleeved on the outside of the limit slide bar (25) are fixedly connected between the pressure piston (24) and the pressure plate (23), a filter screen plate (27) is fixedly installed on the lower side of the interior of the filter housing (21), a plurality of electric telescopic rods (28) are fixedly connected to the rear side of the lower end of the filter housing (21), the movable ends of the plurality of electric telescopic rods (28) extend into the filter housing (21) and are fixedly connected to the same scraper plate (29), and a cleaning door (210) corresponding to the position of the filter screen plate (27) is installed on the front side of the filter housing (21).

3. The industrial wastewater deep purification treatment equipment according to claim 1 is characterized in that: The chemical precipitation mechanism (3) comprises a precipitation tank (31), two longitudinally arranged electric slide rails (32) are symmetrically fixedly mounted on the outer wall of the upper end of the precipitation tank (31), the movable ends of the two electric slide rails (32) are fixedly connected to the same U-shaped moving plate (33), the horizontal part of the U-shaped moving plate (33) is rotatably sleeved with a stirring rod (34), the upper end of the U-shaped moving plate (33) is fixedly mounted with a stirring motor (35) for driving the stirring rod (34) to rotate, the viscosity detection mechanism (6) is arranged between the output end of the stirring motor (35) and the upper end of the stirring rod (34), two dosing heads (36) are symmetrically fixedly mounted on the lower end of the horizontal part of the U-shaped moving plate (33), the two dosing heads (36) are fixedly connected to the same dosing pipe (37), a dosing pump (38) is installed on the dosing pipe (37), and the dosing pump (38) is fixedly mounted on the upper end of the U-shaped moving plate (33).

4. The industrial wastewater deep purification treatment equipment according to claim 1 is characterized in that: The aeration treatment mechanism (4) comprises an aeration tank (41), an aeration pipe network (42) is installed at the bottom of the inner wall of the aeration tank (41), and an aeration fan (43) for supplying air to the aeration pipe network (42) is fixedly installed on the outer side of the aeration tank (41).

5. The industrial wastewater deep purification treatment equipment according to claim 2 is characterized in that: The water resistance feedback mechanism (5) comprises a transmission rack (51) fixedly mounted on the upper end of the pressurizing piston (24); the upper end of the transmission rack (51) penetrates the pressurizing plate (23); a transmission screw (52) is rotatably connected inside the pressurizing plate (23); one end of the transmission screw (52) is fixedly connected to a transmission gear (53) meshing with the transmission rack (51); a trigger plate (54) is threadedly sleeved on the rod wall of the transmission screw (52); two side plates (55) are symmetrically fixedly mounted on one side of the bottom of the inner wall of the pressurizing plate (23); a plurality of parallelly arranged screws are fixedly connected between the two side plates (55). A guide slide bar (56) is disposed on the side plate (55), a plurality of the guide slide bars (56) are slidably sleeved with a same slide plate (57) outside, a plurality of return springs (58) sleeved outside the guide slide bars (56) are fixedly connected between the slide plate (57) and the side plate (55), a thrust permanent magnet plate (59) is fixedly connected to a side of the slide plate (57) away from the return spring (58), a thrust electromagnetic plate (510) disposed opposite to the thrust permanent magnet plate (59) is fixedly mounted on a side wall of the side plate (55), and a trigger switch (511) disposed opposite to the trigger plate (54) is fixedly mounted on an upper side wall of the slide plate (57).

6. The industrial wastewater deep purification treatment equipment according to claim 3 is characterized in that: The viscosity detection mechanism (6) comprises an outwardly expanding circular plate (61) fixedly sleeved on the rod wall at the upper end of the stirring rod (34); a rotating cylinder (62) is fixedly connected to the lower output end of the stirring motor (35); the upper end of the stirring rod (34) and the rotating cylinder (62) are rotatably connected; a torsion spring (63) sleeved on the outside of the stirring rod (34) is fixedly connected between the outwardly expanding circular plate (61) and the rotating cylinder (62); an adjusting resistor rod (64) with an annular structure is fixedly mounted on the outwardly expanding circular plate (61); an adjusting conductive contact piece (65) in electrical contact with the adjusting resistor rod (64) is fixedly mounted on the top of the inner wall of the rotating cylinder (62); and the rotating cylinder (62) and the outwardly expanding circular plate (61) are connected via a locking mechanism (8).

7. The industrial wastewater deep purification treatment equipment according to claim 1 is characterized in that: The viscosity feedback mechanism (7) comprises a feedback shell (71), the inner wall of which is fixedly provided with a plurality of friction rods (72) arranged side by side, the plurality of friction rods (72) being slidably sleeved with a same feedback plate (73) on the outside, the side wall of the feedback plate (73) being fixedly connected with a force-bearing permanent magnetic plate (74), the inner wall of the feedback shell (71) being fixedly provided with a force-applying electromagnetic plate (75) arranged opposite to the force-bearing permanent magnetic plate (74), the inner wall of the feedback shell (71) being fixedly provided with a feedback resistor rod (76) arranged parallel to the friction rod (72), and the outer wall of the feedback plate (73) being fixedly provided with a feedback conductive contact piece (77) in electrical contact with the feedback resistor rod (76).

8. The industrial wastewater deep purification treatment equipment according to claim 6 is characterized in that: The locking mechanism (8) includes a plurality of locking rods (81) movably inserted into the lower end of the rotating cylinder (62); the inner wall of the rotating cylinder (62) is provided with a cavity for placing the locking rod (81); the surface of the outwardly expanded circular plate (61) is provided with a locking hole (82) matching and plugging with the locking rod (81); the upper end of the locking rod (81) is fixedly connected with a lifting plate (83); the lower end of the lifting plate (83) and the bottom of the inner wall of the corresponding cavity of the rotating cylinder (62) are fixedly provided with a locking spring (84) sleeved on the outside of the locking rod (81); the upper end of the lifting plate (83) is fixedly provided with a suction permanent magnet plate (85); the top of the inner wall of the corresponding cavity of the rotating cylinder (62) is fixedly provided with a suction electromagnetic plate (86) arranged opposite to the suction permanent magnet plate (85).

9. A process for deep purification of industrial wastewater, which uses the deep purification equipment for industrial wastewater as claimed in claim 1, characterized in that: The steps include: S1. The physical filtering mechanism (2) can filter and treat industrial wastewater by actively applying pressure, and the water resistance feedback mechanism (5) can automatically determine the blockage situation in the filtering device based on the filtering pressure, thereby more accurately reminding the staff to perform the corresponding cleaning work; S2. The chemical precipitation mechanism (3) causes the heavy metal ions to react with the precipitant to form an insoluble precipitate, thereby separating the heavy metal ions from the wastewater and effectively separating the colloids and suspended solids in the wastewater, thereby improving the purification quality of the wastewater. The viscosity detection mechanism (6) and the viscosity feedback mechanism (7) are used to automatically adjust the dosage and stirring speed based on the viscosity of the wastewater; S3. The aeration treatment mechanism (4) injects oxygen into the wastewater to keep the microorganisms in the wastewater in an aerobic state. In the aeration tank (41), the microorganisms decompose the organic matter in the wastewater into inorganic matter through metabolism, and at the same time convert ammonia nitrogen into nitrate nitrogen. The aeration speed is automatically adjusted to ensure that the microorganisms have enough oxygen to carry out metabolic activities.

Images