Polyurethane resin production wastewater coagulation and sedimentation separation equipment

Abstract

The present application relates to sewage treatment technical field, and specifically discloses a kind of polyurethane resin production's sewage coagulation sedimentation separation equipment, including sedimentation tank, the sedimentation tank bottom is fixedly connected with collection tank, the sedimentation tank top is fixedly connected with pretreatment filter device in the portion of first water inlet nozzle side, the sedimentation tank top is fixedly connected with quantitative discharging device in the portion of pretreatment filter device side, the collection tank inner wall is rotatably connected with collection device, this polyurethane resin production's sewage coagulation sedimentation separation equipment is provided with pretreatment filter device, so that the large particle impurities in sewage can be filtered out in advance, avoid affecting subsequent sedimentation separation effect, provided with quantitative discharging device, so that the dosing amount of flocculant can be controlled according to the amount of wastewater, avoid the effect of flocculation sedimentation caused by artificial addition of flocculant too much or too little.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a sewage coagulation and sedimentation separation equipment for polyurethane resin production. BACKGROUND

[0002] Polyurethane resin is a kind of high polymer material with excellent performance, which is widely used in building, automobile, furniture, electronics, light industry and other fields due to its good wear resistance, chemical corrosion resistance, insulation and elasticity. With the continuous growth of market demand for polyurethane resin, its production scale is expanding. A large amount of sewage will be generated in the production process. The composition of the sewage is complex, containing polyols, isocyanate, catalysts, organic solvents and other pollutants. Direct discharge will cause serious harm to the water environment. Therefore, effective treatment of polyurethane resin production sewage has become an important problem that must be solved in the development of the industry. In the treatment process of polyurethane resin production sewage, the pretreatment link is very important. Its purpose is to remove part of the pollutants in the sewage and reduce the load of the subsequent treatment process to create favorable conditions for subsequent biological treatment or advanced treatment. Coagulation and sedimentation separation technology is one of the key technologies commonly used in the pretreatment stage of sewage. The coagulation and sedimentation separation equipment developed based on this technology has also been applied in the field of polyurethane resin production sewage treatment.

[0003] The traditional sewage coagulation and sedimentation separation equipment often lacks a pretreatment step, which increases the workload and incompleteness of coagulation and sedimentation, resulting in poor final sewage treatment effect. Moreover, the traditional equipment often requires manual addition of flocculants, which leads to poor flocculation and sedimentation effect due to excessive or insufficient addition of flocculants. SUMMARY

[0004] To achieve the above purpose, the present application realizes the following technical scheme: a sewage coagulation and sedimentation separation equipment for polyurethane resin production, comprising a sedimentation tank, a collection tank is fixedly connected to the bottom of the sedimentation tank, a water inlet of a first high-pressure water pump is communicated with one side of the sedimentation tank, a water outlet of the first high-pressure water pump is communicated with a water outlet pipe, an aeration device is fixedly connected to one side of the sedimentation tank, a first water inlet is communicated with the top of the sedimentation tank, a pretreatment filtration device is fixedly connected to the side of the top of the sedimentation tank, a recovery tank is fixedly connected to the side of the top of the sedimentation tank, a quantitative feeding device is fixedly connected to the side of the top of the sedimentation tank, a fixed end of a first pneumatic piston rod is fixedly connected to one side of the collection tank, a movable end of the first pneumatic piston rod is fixedly connected to a limiting sliding plate, the limiting sliding plate penetrates one side of the collection tank and is slidingly connected with the collection tank, and a collection device is rotatably connected to the inner wall of the collection tank.

[0005] Preferably, the pretreatment filtering device includes a first support, a filter cartridge is fixedly connected to the top of the first support, water filtering holes are uniformly arranged on the filter cartridge, a water blocking semicircular plate is fixedly connected to the top of the filter cartridge, a second water inlet nozzle penetrates through and is fixedly connected to the top of the water blocking semicircular plate, the bottom of the second water inlet nozzle is communicated with the filter cartridge, a first motor is fixedly connected to one side of the filter cartridge, an auger shaft is rotatably connected to the inner wall of the filter cartridge, the driving shaft of the first motor penetrates through one side of the filter cartridge and is fixedly connected with the auger shaft, an auger blade is sleeved and fixedly connected to the auger shaft, the first support is fixedly connected to the top of the sediment tank, the filter cartridge is located above the first water inlet nozzle, and the filter cartridge is located on one side of the recovery tank, so that the impurities can be discharged conveniently while filtering without stopping the machine, thereby improving the flexibility of the device and the work efficiency.

[0006] Preferably, the quantitative discharging device includes a second support, a mixing tank is fixedly connected to the top of the second support, a second motor is fixedly connected to one side of the mixing tank, a rotating rod is rotatably connected to the inner wall of the mixing tank, the driving shaft of the second motor penetrates through one side of the mixing tank and is fixedly connected with the rotating rod, a first stirring plate is fixedly connected to the rotating rod, third supports are fixedly connected to the two sides of the mixing tank, a first connecting plate is fixedly connected to the top of the third support, a cooling fan penetrates through and is fixedly connected to the top of the first connecting plate, a discharging pipe is communicated with the bottom of the mixing tank, a rotating pipe is communicated with the bottom of the discharging pipe, the rotating pipe is rotatably connected with the discharging pipe, the output end of a first belt drive mechanism is sleeved and fixedly connected to the rotating pipe, the input end of the first belt drive mechanism is fixedly connected with the driving shaft of a third motor, a control cylinder is communicated with one side of the rotating pipe, a fixed end of a second pneumatic piston rod is fixedly connected to one side of the inner wall of the control cylinder, a control plate is fixedly connected to the movable end of the second pneumatic piston rod, the control plate extends into the rotating pipe, spray pipes are uniformly communicated with the part of the side surface of the rotating pipe below the control cylinder, arc-shaped stirring plates are fixedly connected to the part of the side surface of the rotating pipe on one side of the spray pipes, filter holes are uniformly arranged on the side surface of the arc-shaped stirring plates, the second support is fixedly connected to the top of the sediment tank, the rotating pipe penetrates through and is rotatably connected with the top of the sediment tank, and the third motor is fixedly connected to the top of the sediment tank, so that the poor flocculation effect caused by excessive or insufficient manual addition of flocculants is avoided, the flocculation efficiency is improved, the uniformity of the mixed flocculants and the sewage is improved while the stirring resistance is reduced, and the subsequent flocculation effect is improved.

[0007] Preferably, the aeration device comprises a fixed plate, a fan is fixedly connected to the top of the fixed plate, an air connecting pipe is communicated with the air outlet of the fan, a rotating air pipe is communicated with the end of the air connecting pipe away from the fan, the rotating air pipe is rotatably connected with the air connecting pipe, the output end of a second belt transmission mechanism is sleeved and fixedly connected to the rotating air pipe, the input end of the second belt transmission mechanism is fixedly connected with the driving shaft of a fourth motor, the fourth motor is fixedly connected to the top of the fixed plate, the rotating air pipe is uniformly communicated with air injection pipes, the part of the rotating air pipe on the side of the air injection pipes is fixedly connected with a heating stirring plate, the fixed plate is fixedly connected to one side of the sedimentation tank, the rotating air pipe penetrates through the sedimentation tank and is rotatably connected with the sedimentation tank, so that the aeration effect can be improved, the reaction rate of the flocculating agent and the sewage can be accelerated, the flocculation and sedimentation rate can be improved, and the work efficiency can be improved.

[0008] Preferably, the collecting device comprises a rotating shaft, a sedimentation plate is fixedly connected to the rotating shaft, a sealing element is fixedly connected to the side of the sedimentation plate away from the rotating shaft, a sliding rail is fixedly connected to the top of the sedimentation plate, an electric sliding block is slidably connected to the inner wall of the sliding rail, a second connecting plate is fixedly connected to the top of the electric sliding block, a cleaning scraper is fixedly connected to the bottom of the second connecting plate, a first connecting support is fixedly connected to the bottom of the sedimentation plate, a first rotating block is rotatably connected to the inner wall of the first connecting support, a connecting disc is fixedly connected to the side of the first rotating block away from the first connecting support, a movable end of a third pneumatic piston rod is fixedly connected to the side of the connecting disc away from the first rotating block, a second rotating block is fixedly connected to the fixed end of the third pneumatic piston rod, a second connecting support penetrates through and is rotatably connected to the side of the second rotating block, the rotating shaft penetrates through the collecting tank and is rotatably connected with the inner wall of the collecting tank, and the second connecting support is fixedly connected to the inner wall of the collecting tank, so that manual intervention can be reduced, and automatic cleaning work can be completed.

[0009] The application provides a sewage coagulation and sedimentation separation equipment for polyurethane resin production.

[0010] Advantages:

[0011] 1. The sewage coagulation and sedimentation separation equipment for polyurethane resin production, when in use, the sewage is discharged into the second water inlet nozzle, and then discharged into the filter cylinder, the sewage is filtered through the filter hole in the inner wall of the filter cylinder, and then the filtered water is discharged into the first water inlet nozzle, and then the first water inlet nozzle discharges the filtered sewage into the sedimentation tank for further treatment, then the first motor is started, the driving shaft of the first motor rotates to drive the auger shaft to rotate, the auger shaft rotates to drive the auger blade to rotate, and under the rotation and transportation of the auger blade, the filtered large-particle impurities are transported to the recovery box on one side of the filter cylinder, so that the impurities can be discharged without stopping the machine during filtration, thereby improving the flexibility of the device and improving the work efficiency.

[0012] 2. The sewage coagulation and sedimentation separation equipment for polyurethane resin production, when in use, the flocculating agent is added into the mixing box, then water is added, and then the second motor is started, the driving shaft of the second motor rotates to drive the rotating rod to rotate, and the rotating rod rotates to drive the first stirring plate to rotate, so that the flocculating agent in the mixing box can be stirred to make the coagulant fully mixed with water, improve the subsequent flocculation effect, and in the working process, the cooling fan is started, the wind generated by the cooling fan blows on the inside of the mixing box, so that the dryness and low temperature are maintained, the flocculating agent mixed with water is prevented from chemical reaction due to high temperature, the subsequent flocculation effect is affected, the mixed flocculating agent liquid is transported to the rotating pipe through the discharge pipe, and then finally sprayed into the sedimentation tank through the spray pipe to react with the sewage, the second pneumatic piston rod is started, the movable end of the second pneumatic piston rod is elongated to drive the control plate to move towards the rotating pipe, so that the flocculating agent liquid in the rotating pipe can be blocked, the longer the distance of the control plate moving, the less the flocculating agent liquid transported to the spray pipe in the rotating pipe, so that the amount of discharge can be controlled through the second pneumatic piston rod, the functionality of the device is improved, the poor flocculation effect caused by excessive or insufficient manual addition of flocculating agent is avoided, and the flocculation efficiency is improved, then the third motor is started, the driving shaft of the third motor rotates to drive the input end of the first belt transmission mechanism to rotate, the output end of the first belt transmission mechanism rotates to drive the rotating pipe to rotate, and the rotating pipe rotates to drive the arc-shaped stirring plate to rotate, the filter hole opened on the arc-shaped stirring plate can reduce the stirring resistance while improving the uniformity of the mixed flocculating agent and the sewage, and the subsequent flocculation effect is improved.

[0013] 3. The sewage coagulation and sedimentation separation equipment for polyurethane resin production, in use, the induced draft fan is started, the air generated by the induced draft fan is transported to the connecting air pipe through the air outlet, then transported to the rotating air pipe through the connecting air pipe, and finally sprayed into the sewage through the air jet pipe, so as to generate bubbles and perform aeration, then the fourth motor is started, the driving shaft of the fourth motor rotates to drive the input end of the second belt transmission mechanism to rotate, the output end of the second belt transmission mechanism rotates to drive the rotating air pipe to rotate, the rotating air pipe rotates to drive the air jet pipe and the heating stirring plate to rotate around the center of the rotating air pipe, then the heating stirring plate starts heating, so that the aeration effect can be improved, the reaction rate of the flocculating agent with the sewage will be accelerated, the flocculation and sedimentation rate is improved, and the work efficiency is improved.

[0014] 4. The sewage coagulation and sedimentation separation equipment for polyurethane resin production, in use, when the flocculating agent and the sewage are completely reacted and the impurities are completely precipitated, the first high-pressure water pump pumps the clean water in the sedimentation tank to the water outlet pipe through the water outlet, then the clean water is collected and utilized, and when the impurities deposited on the inner wall and bottom of the sedimentation tank need to be cleaned, the first pneumatic piston rod is started, the movable end of the first pneumatic piston rod retracts to drive the limiting sliding plate to retract, the limiting sliding plate retracts, then the third pneumatic piston rod is started, the movable end of the third pneumatic piston rod retracts to drive the first connecting support to move towards the third pneumatic piston rod through the connecting disc and the first rotating block, thereby driving the sedimentation plate to rotate around the rotating shaft axis, so that the sedimentation plate is converted from horizontal to inclined, then the electric sliding block is started, the electric sliding block slides in the sliding rail to drive the second connecting plate to move, the second connecting plate moves to drive the cleaning scraper to move, so that the impurities on the sedimentation plate can be cleaned, under the movement of the cleaning scraper, the impurities are cleaned into the collection tank inside, the cleaning work is completed, when the cleaning is completed, the third pneumatic piston rod is extended, indirectly driving the sedimentation plate to convert from inclined to horizontal direction, until the sealing element completely seals the sedimentation plate, to avoid water leakage of the sewage during the next flocculation and sedimentation, then the first pneumatic piston rod is started, the movable end of the first pneumatic piston rod is extended to drive the limiting sliding plate to move towards the collection tank, so that the sedimentation plate can be further limited and fixed, the stability of the device is improved, so that manual intervention can be reduced, and the automatic cleaning work is completed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure diagram of the sewage coagulation and sedimentation separation equipment for polyurethane resin production of the present application;

[0016] Figure 2 The internal structure diagram of the sewage coagulation and sedimentation separation equipment for polyurethane resin production of the present application;

[0017] Figure 3 The connecting structure diagram of the pretreatment filtering device of the present application;

[0018] Figure 4 It is the internal structure schematic view of the pretreatment filtering device of the application;

[0019] Figure 5 It is the structure schematic view of the quantitative dosing device of the application;

[0020] Figure 6 It is the internal structure schematic view of the quantitative dosing device of the application;

[0021] Figure 7 It is the structure schematic view of the aeration device of the application;

[0022] Figure 8 It is the connecting structure schematic view of the collecting device of the application;

[0023] Figure 9 It is the structure schematic view of the collecting device of the application.

[0024] In the figure: 1, sedimentation tank; 2, collecting tank; 3, first high-pressure water pump; 4, water outlet pipe; 5, aeration device; 6, first water inlet nozzle; 7, pretreatment filtering device; 8, quantitative dosing device; 9, first pneumatic piston rod; 10, limiting sliding plate; 11, collecting device; 12, recovery tank; 71, first support; 72, filter cartridge; 73, water filtering hole; 74, water blocking semicircular plate; 75, second water inlet nozzle; 76, first motor; 77, auger shaft; 78, auger blade; 81, second support; 82, mixing tank; 83, second motor; 84, rotating rod; 85, first stirring plate; 86, third support; 87, first connecting plate; 88, cooling fan; 89, discharge pipe; 810, rotating pipe; 811, first belt transmission mechanism; 812, third motor; 813, material control cylinder; 814, second pneumatic piston rod; 815, material control plate; 816, material spraying pipe; 817, arc-shaped stirring plate; 818, filter hole; 51, fixed plate; 52, air blower; 53, connecting air pipe; 54, rotating air pipe; 55, second belt transmission mechanism; 56, fourth motor; 57, air jet pipe; 58, heating stirring plate; 111, rotating shaft; 112, sedimentation plate; 113, sealing element; 114, sliding rail; 115, electric sliding block; 116, second connecting plate; 117, cleaning scraper; 118, first connecting support; 119, second rotating block; 1110, connecting circular plate; 1111, third pneumatic piston rod; 1112, second connecting support; 1113, first rotating block. DETAILED DESCRIPTION

[0025] Clearly, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] Please refer to Figures 1-4 The present application provides a technical scheme: a sewage coagulation and sedimentation separation equipment for polyurethane resin production, which comprises a sedimentation tank body 1, a collection tank body 2 fixedly connected at the bottom of the sedimentation tank body 1, a water inlet of a first high-pressure water pump 3 communicated with one side of the sedimentation tank body 1, a water outlet of the first high-pressure water pump 3 communicated with a water outlet pipe 4, an aeration device 5 fixedly connected with one side of the sedimentation tank body 1, a first water inlet nozzle 6 communicated with the top of the sedimentation tank body 1, a pretreatment filtering device 7 fixedly connected with the part of the top of the sedimentation tank body 1 on one side of the first water inlet nozzle 6, a recovery tank 12 fixedly connected with the part of the top of the sedimentation tank body 1 on one side of the pretreatment filtering device 7, a quantitative feeding device 8 fixedly connected with the part of the top of the sedimentation tank body 1 on one side of the pretreatment filtering device 7, a fixed end of a first pneumatic piston rod 9 fixedly connected with one side of the collection tank body 2, a movable end of the first pneumatic piston rod 9 fixedly connected with a limiting sliding plate 10, the limiting sliding plate 10 penetrating through one side of the collection tank body 2 and being slidingly connected with the collection tank body 2, a collection device 11 rotatably connected with the inner wall of the collection tank body 2, the pretreatment filtering device 7 comprising a first support 71, the first support 71 having a filter cylinder 72 fixedly connected with the top thereof, the filter cylinder 72 having water filtering holes 73 uniformly formed therein, the filter cylinder 72 having a water blocking semicircular plate 74 fixedly connected with the top thereof, the water blocking semicircular plate 74 having a second water inlet nozzle 75 penetrating therethrough and fixedly connected with the top thereof, the second water inlet nozzle 75 being communicated with the filter cylinder 72 at the bottom thereof, the filter cylinder 72 having a first motor 76 fixedly connected with one side thereof, the filter cylinder 72 having an auger shaft 77 rotatably connected with the inner wall thereof, the driving shaft of the first motor 76 penetrating through one side of the filter cylinder 72 and being fixedly connected with the auger shaft 77, the auger shaft 77 having an auger blade 78 fixedly connected therewith, the first support 71 being fixedly connected with the top of the sedimentation tank body 1, the filter cylinder 72 being located above the first water inlet nozzle 6, and the filter cylinder 72 being located on one side of the recovery tank 12.

[0027] In use, the sewage is discharged into the second water inlet nozzle 75, and then into the filter cylinder 72, and the sewage is filtered through the filter holes 73 in the inner wall of the filter cylinder 72, and then the filtered water is discharged into the first water inlet nozzle 6, and then the first water inlet nozzle 6 discharges the filtered sewage into the sediment tank 1 for further treatment, and then the first motor 76 is started, the driving shaft of the first motor 76 rotates to drive the auger shaft 77 to rotate, and the auger shaft 77 rotates to drive the auger blades 78 to rotate, and under the rotation and transportation of the auger blades 78, the filtered large-particle impurities and the like are transported into the recovery box 12 on one side of the filter cylinder 72, so that the impurities can be discharged without stopping the machine during the filtration, thereby improving the flexibility of the device and improving the work efficiency.

[0028] Please refer to Figures 1-6 The present application provides a technical scheme: the quantitative feeding device 8 comprises a second support 81, a mixing box body 82 is fixedly connected to the top of the second support 81, a second motor 83 is fixedly connected to one side of the mixing box body 82, a rotating rod 84 is rotatably connected to the inner wall of the mixing box body 82, the driving shaft of the second motor 83 penetrates through one side of the mixing box body 82 and is fixedly connected with the rotating rod 84, a plurality of first stirring plates 85 are uniformly fixedly connected to the rotating rod 84, third supports 86 are fixedly connected to the two sides of the mixing box body 82, a first connecting plate 87 is fixedly connected to the top of each third support 86, a cooling fan 88 penetrates through and is fixedly connected to the top of the first connecting plate 87, a discharge pipe 89 is communicated with the bottom of the mixing box body 82, a rotating pipe 810 is rotatably connected with the discharge pipe 89, the output end of a first belt drive mechanism 811 is sleeved and fixedly connected to the rotating pipe 810, the driving shaft of a third motor 812 is fixedly connected to the input end of the first belt drive mechanism 811, a material control cylinder 813 is communicated with one side of the rotating pipe 810, a fixed end of a second pneumatic piston rod 814 is fixedly connected to one side of the inner wall of the material control cylinder 813, a material control plate 815 is fixedly connected to the movable end of the second pneumatic piston rod 814, the material control plate 815 extends into the rotating pipe 810, a plurality of material spraying pipes 816 are uniformly communicated with the part of the side surface of the rotating pipe 810 below the material control cylinder 813, an arc-shaped stirring plate 817 is fixedly connected to the part of the side surface of the rotating pipe 810 on one side of the material spraying pipe 816, a plurality of filter holes 818 are uniformly formed in the side surface of the arc-shaped stirring plate 817, the second support 81 is fixedly connected to the top of the sediment tank 1, the rotating pipe 810 penetrates through and is rotatably connected with the top of the sediment tank 1, and the third motor 812 is fixedly connected to the top of the sediment tank 1.

[0029] In use, the flocculating agent is added to the mixing box 82, then water is added, and then the second motor 83 is started, the driving shaft of the second motor 83 rotates to drive the rotating rod 84 to rotate, the rotating rod 84 rotates to drive the first stirring plate 85 to rotate, so that the flocculating agent in the mixing box 82 can be stirred, so that the flocculating agent and water are fully mixed, and the subsequent flocculation effect is improved. During operation, the cooling fan 88 is started, and the air generated by the cooling fan 88 blows on the inside of the mixing box 82, so that the inside of the mixing box 82 is kept dry and low temperature, so that the flocculating agent mixed with water does not react due to high temperature, and the subsequent flocculation effect is affected. The mixed flocculating agent liquid is transported to the rotating pipe 810 through the discharge pipe 89, and then finally sprayed into the sedimentation tank 1 through the spraying pipe 816 to react with the sewage. The second pneumatic piston rod 814 is started, and the movable end of the second pneumatic piston rod 814 is elongated to drive the control plate 815 to move towards the rotating pipe 810, so that the flocculating agent liquid in the rotating pipe 810 can be blocked. When the control plate 815 moves a longer distance, the flocculating agent liquid transported to the spraying pipe 816 in the rotating pipe 810 is less, so that the amount of discharge can be controlled by the second pneumatic piston rod 814, the functionality of the device is improved, and the flocculation effect caused by excessive or insufficient manual addition of flocculating agent is avoided. The flocculation efficiency is improved, and then the third motor 812 is started. The driving shaft of the third motor 812 rotates to drive the input end of the first belt transmission mechanism 811 to rotate, the output end of the first belt transmission mechanism 811 rotates to drive the rotating pipe 810 to rotate, and the rotating pipe 810 rotates to drive the arc-shaped stirring plate 817 to rotate. The filter holes 818 formed in the arc-shaped stirring plate 817 can improve the uniformity of the mixed flocculating agent and the sewage while reducing the stirring resistance, thereby improving the subsequent flocculation effect.

[0030] Please refer to Figures 1-7 The application provides a technical solution: the aeration device 5 comprises a fixed plate 51, the top of the fixed plate 51 is fixedly connected with an air suction fan 52, the air outlet of the air suction fan 52 is communicated with a connecting air pipe 53, one end of the connecting air pipe 53 away from the air suction fan 52 is communicated with a rotating air pipe 54, the rotating air pipe 54 is rotatably connected with the connecting air pipe 53, the output end of a second belt transmission mechanism 55 is sleeved and fixedly connected with the rotating air pipe 54, the input end of the second belt transmission mechanism 55 is fixedly connected with the driving shaft of a fourth motor 56, the fourth motor 56 is fixedly connected to the top of the fixed plate 51, the rotating air pipe 54 is uniformly communicated with a gas injection pipe 57, the part of the side surface of the rotating air pipe 54 located on one side of the gas injection pipe 57 is fixedly connected with a heating stirring plate 58, the fixed plate 51 is fixedly connected to one side of the sedimentation tank 1, and the rotating air pipe 54 penetrates through the sedimentation tank 1 and is rotatably connected with the sedimentation tank 1.

[0031] In use, the air blower 52 is started, the air generated by the air blower 52 is transported to the connecting air pipe 53 through the air outlet, then transported to the rotating air pipe 54 through the connecting air pipe 53, and finally sprayed into the sewage by the air jet pipe 57, so as to generate air bubbles and perform aeration effect, then the fourth motor 56 is started, the driving shaft of the fourth motor 56 rotates to drive the input end of the second belt transmission mechanism 55 to rotate, the output end of the second belt transmission mechanism 55 rotates to drive the rotating air pipe 54 to rotate, the rotating air pipe 54 rotates to drive the air jet pipe 57 and the heating stirring plate 58 to rotate around the center of the rotating air pipe 54, then the heating stirring plate 58 starts heating, so that the aeration effect can be improved, the reaction rate of the flocculating agent under heating and the sewage can be accelerated, the flocculation and precipitation rate can be improved, and the work efficiency can be improved.

[0032] Please refer to Figures 1-9 The present application provides a technical solution: the collecting device 11 comprises a rotating shaft 111, a sedimentation plate 112 is fixedly connected to the rotating shaft 111, a sealing element 113 is fixedly connected to the side of the sedimentation plate 112 away from the rotating shaft 111, a sliding rail 114 is fixedly connected to the top of the sedimentation plate 112, an electric sliding block 115 is slidingly connected to the inner wall of the sliding rail 114, a second connecting plate 116 is fixedly connected to the top of the electric sliding block 115, a cleaning scraper 117 is fixedly connected to the bottom of the second connecting plate 116, a first connecting bracket 118 is fixedly connected to the bottom of the sedimentation plate 112, a first rotating block 1113 is rotatably connected to the inner wall of the first connecting bracket 118, a connecting circular plate 1110 is fixedly connected to the side of the first rotating block 1113 away from the first connecting bracket 118, and the movable end of a third pneumatic piston rod 1111 is fixedly connected to the side of the connecting circular plate 1110 away from the first rotating block 1113, the fixed end of the third pneumatic piston rod 1111 is fixedly connected to a second rotating block 119, and the second rotating block 119 is rotatably connected through a second connecting bracket 1112, the rotating shaft 111 penetrates the collecting box body 2 and is rotatably connected with the inner wall of the collecting box body 2, and the second connecting bracket 1112 is fixedly connected to the inner wall of the collecting box body 2.

[0033] When the flocculants and sewage are completely reacted and the impurities are completely precipitated, the first high-pressure water pump 3 draws the clean water in the sedimentation tank 1 through the water outlet to the water outlet pipe 4, and then the clean water is collected and utilized. When the impurities precipitated on the inner wall and bottom of the sedimentation tank 1 need to be cleaned, the first pneumatic piston rod 9 is started, the movable end of the first pneumatic piston rod 9 is retracted to drive the limiting sliding plate 10 to retract, and then the third pneumatic piston rod 1111 is started. The movable end of the third pneumatic piston rod 1111 is retracted to drive the first connecting support 118 to move towards the third pneumatic piston rod 1111 through the connecting circular plate 1110 and the first rotating block 1113, thereby driving the sedimentation plate 112 to rotate around the rotating shaft 111 axis, so that the sedimentation plate 112 is converted from horizontal to inclined. Then the electric sliding block 115 is started, the electric sliding block 115 slides in the inner wall of the slide rail 114 to drive the second connecting plate 116 to move, and the second connecting plate 116 moves to drive the cleaning scraper 117 to move, so that the impurities on the sedimentation plate 112 can be cleaned. Under the movement of the cleaning scraper 117, the impurities are cleaned into the collection tank 2 below, and the cleaning work is completed. When the cleaning is completed, the third pneumatic piston rod 1111 is extended, which indirectly drives the sedimentation plate 112 to be converted from inclined to horizontal direction, until the sealing element 113 completely seals the sedimentation plate 112, to avoid water leakage of the sewage during the next flocculation and sedimentation. Then the first pneumatic piston rod 9 is started, the movable end of the first pneumatic piston rod 9 is extended to drive the limiting sliding plate 10 to move towards the inside of the collection tank 2, so that the sedimentation plate 112 can be further limited and fixed, improving the stability of the device, thereby reducing manual intervention and completing the automatic cleaning work.

[0034] Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art and related fields without creative labor shall fall within the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A sewage coagulation and sedimentation separation apparatus for polyurethane resin production, characterized by: Including the sediment tank (1), the sediment tank (1) bottom fixedly connected with the collection tank (2), the sediment tank (1) one side is connected with the water inlet of first high-pressure water pump (3), the water outlet of first high-pressure water pump (3) is connected with the water outlet pipe (4), the sediment tank (1) one side is fixedly connected with aeration device (5), the sediment tank (1) top is connected with first water inlet nozzle (6), the sediment tank (1) top is located in the part of first water inlet nozzle (6) one side and is fixedly connected with pretreatment filter device (7), the sediment tank (1) top is located in the part of pretreatment filter device (7) one side and is fixedly connected with recovery tank (12), the sediment tank (1) top is located in the part of pretreatment filter device (7) one side and is fixedly connected with quantitative discharge device (8), the collection tank (2) one side is fixedly connected with the fixed end of first pneumatic piston rod (9), the movable end of first pneumatic piston rod (9) is fixedly connected with limit sliding plate (10), the limit sliding plate (10) penetrates the one side of collection tank (2) and is slidably connected with collection tank (2), the collection device (11) is rotatably connected on the inner wall of collection tank (2); The quantitative feeding device (8) comprises a second support (81), a mixing box (82) is fixedly connected to the top of the second support (81), a second motor (83) is fixedly connected to one side of the mixing box (82), a rotating rod (84) is rotatably connected to the inner wall of the mixing box (82), the driving shaft of the second motor (83) penetrates through one side of the mixing box (82) and is fixedly connected with the rotating rod (84), a plurality of first stirring plates (85) are uniformly fixedly connected to the rotating rod (84), third supports (86) are fixedly connected to the two sides of the mixing box (82), a first connecting plate (87) is fixedly connected to the top of each third support (86), a cooling fan (88) penetrates through and is fixedly connected to the top of the first connecting plate (87), a discharging pipe (89) is communicated with the bottom of the mixing box (82), a rotating pipe (810) is communicated with the bottom of the discharging pipe (89), the rotating pipe (810) is rotatably connected with the discharging pipe (89), the output end of a first belt drive mechanism (811) is sleeved and fixedly connected to the rotating pipe (810), the input end of the first belt drive mechanism (811) is fixedly connected with the driving shaft of a third motor (812), a material control cylinder (813) is communicated with one side of the rotating pipe (810), the fixed end of a second pneumatic piston rod (814) is fixedly connected to one side of the inner wall of the material control cylinder (813), a material control plate (815) is fixedly connected to the movable end of the second pneumatic piston rod (814), the material control plate (815) extends into the rotating pipe (810), a plurality of material spraying pipes (816) are uniformly communicated with the part of the side surface of the rotating pipe (810) below the material control cylinder (813), an arc-shaped stirring plate (817) is fixedly connected to the part of the side surface of the rotating pipe (810) on one side of the material spraying pipe (816), and filter holes (818) are uniformly formed in the side surface of the arc-shaped stirring plate (817).

2. The sewage coagulation and sedimentation separation equipment produced by the polyurethane resin according to claim 1, characterized in that: The pretreatment filtering device (7) comprises a first support (71), a filtering cylinder (72) is fixedly connected to the top of the first support (71), a plurality of water filtering holes (73) are uniformly formed in the filtering cylinder (72), a water blocking semicircular plate (74) is fixedly connected to the top of the filtering cylinder (72), a second water inlet nozzle (75) penetrates through and is fixedly connected to the top of the water blocking semicircular plate (74), the bottom of the second water inlet nozzle (75) is communicated with the filtering cylinder (72), a first motor (76) is fixedly connected to one side of the filtering cylinder (72), a auger shaft (77) is rotatably connected to the inner wall of the filtering cylinder (72), the driving shaft of the first motor (76) penetrates through one side of the filtering cylinder (72) and is fixedly connected with the auger shaft (77), and a auger blade (78) is sleeved and fixedly connected to the auger shaft (77).

3. The sewage coagulation and sedimentation separation equipment produced by the polyurethane resin according to claim 2, characterized in that: The first support (71) is fixedly connected to the top of the sedimentation box (1), the filtering cylinder (72) is located above the first water inlet nozzle (6), and the filtering cylinder (72) is located on one side of the recovery box (12).

4. The sewage coagulation and sedimentation separation equipment produced by the polyurethane resin according to claim 1, characterized in that: The second support (81) is fixedly connected to the top of the sediment tank (1), and the rotating pipe (810) penetrates through the top of the sediment tank (1) and is rotationally connected to the sediment tank (1), and the third motor (812) is fixedly connected to the top of the sediment tank (1).

5. The sewage coagulation and sedimentation separation equipment produced by the polyurethane resin according to claim 1, characterized in that: The aeration device (5) comprises a fixed plate (51), a draft fan (52) is fixedly connected to the top of the fixed plate (51), an air outlet of the draft fan (52) is communicated with a connecting air pipe (53), one end of the connecting air pipe (53) away from the draft fan (52) is communicated with a rotating air pipe (54), the rotating air pipe (54) is rotationally connected with the connecting air pipe (53), an output end of a second belt transmission mechanism (55) is sleeved and fixedly connected to the rotating air pipe (54), an input end of the second belt transmission mechanism (55) is fixedly connected with a driving shaft of a fourth motor (56), the fourth motor (56) is fixedly connected to the top of the fixed plate (51), a plurality of air injection pipes (57) are uniformly communicated with the rotating air pipe (54), and a heating stirring plate (58) is fixedly connected to the part of the side surface of the rotating air pipe (54) on one side of the air injection pipe (57).

6. The sewage coagulation and sedimentation separation equipment produced by the polyurethane resin according to claim 5, characterized in that: The fixed plate (51) is fixedly connected to one side of the sediment tank (1), and the rotating air pipe (54) penetrates through the sediment tank (1) and is rotationally connected to the sediment tank (1).

7. The sewage coagulation and sedimentation separation equipment produced by the polyurethane resin according to claim 1, characterized in that: The collecting device (11) comprises a rotating shaft (111), a sediment plate (112) is fixedly connected to the rotating shaft (111), a sealing element (113) is fixedly connected to the side of the sediment plate (112) away from the rotating shaft (111), a sliding rail (114) is fixedly connected to the top of the sediment plate (112), an electric sliding block (115) is slidingly connected to the inner wall of the sliding rail (114), a second connecting plate (116) is fixedly connected to the top of the electric sliding block (115), a cleaning scraper (117) is fixedly connected to the bottom of the second connecting plate (116), a first connecting support (118) is fixedly connected to the bottom of the sediment plate (112), a first rotating block (1113) is rotationally connected to the inner wall of the first connecting support (118), a connecting circular plate (1110) is fixedly connected to the side of the first rotating block (1113) away from the first connecting support (118), a movable end of a third pneumatic piston rod (1111) is fixedly connected to the side of the connecting circular plate (1110) away from the first rotating block (1113), and a second rotating block (119) is fixedly connected to the fixed end of the third pneumatic piston rod (1111).

8. The sewage coagulation and sedimentation separation device produced by the polyurethane resin according to claim 7, characterized in that: The rotating shaft (111) penetrates through the collecting tank (2) and is rotationally connected to the inner wall of the collecting tank (2), and the second connecting support (1112) is fixedly connected to one side of the inner wall of the collecting tank (2).

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