MVR preheating device with filtering mechanism

Abstract

The application discloses a MVR preheating device with a filtering mechanism and relates to the technical field of sewage treatment. The MVR preheating device with the filtering mechanism comprises a preheating tank, a dedusting mechanism and a condensation treatment mechanism, a water suction pump is installed between the top of the surface of the preheating tank and the dedusting mechanism, a heating mechanism is installed on the surface of the preheating tank, the condensation treatment mechanism comprises a top cover and a liquid storage bin, first and second flow guide pieces are fixedly installed at the edge of the bottom of the top cover in sequence, the second flow guide piece is installed above the first flow guide piece, a conical water collecting hopper is fixedly connected to the bottom end of the first flow guide piece, a liquid guide pipe is in communication between the bottom of the surface of the conical water collecting hopper and the top of the liquid storage bin, a control valve is installed at the bottom of the liquid storage bin, an inverted conical block is fixedly connected to the center of the bottom of the top cover, the energy-saving purpose is achieved, the pretreatment can be filtered, heat preservation can be carried out, heat loss can be reduced, the condensed water can be treated, energy consumption can be reduced, and the device is safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an MVR preheating device with a filtration mechanism. Background Technology

[0002] MVR (Mechanical Vapor Reduction) is a highly efficient and energy-saving evaporation technology widely used in chemical, food, pharmaceutical, and wastewater treatment industries. MVR preheating typically refers to preheating the relevant equipment or materials before starting the MVR system to ensure stable and efficient operation. MVR preheating transfers heat to the feed liquid through heat exchange, usually utilizing steam or other heat sources generated within the system as the heating medium to bring the feed liquid to a specific temperature. MVR preheating devices can quickly and efficiently transfer heat from the heat source to the feed liquid, allowing it to reach the required preheating temperature in a short time, while minimizing the temperature difference between the feed liquid and the heating medium to improve thermal efficiency.

[0003] Currently, existing MVR preheating devices produce condensate when heating the raw material liquid. The condensate accumulates on the top of the equipment cavity, making it difficult to treat. Furthermore, as the temperature of the condensate droplets gradually decreases, a large number of droplets fall into the raw material liquid, lowering its temperature and increasing energy consumption, which is not conducive to energy conservation. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A preheating device for MVR with a filtration mechanism includes:

[0006] A preheating tank and a cleaning mechanism are provided. A water pump is installed between the top of the preheating tank and the cleaning mechanism. A drain pipe is installed at the bottom of the preheating tank. A heating mechanism is installed on the surface of the preheating tank.

[0007] A condensation treatment mechanism is provided for collecting and reusing condensate in the preheating tank, and the condensation treatment mechanism is installed on the top of the preheating tank.

[0008] The condensation treatment mechanism includes a top cover and a liquid storage tank. The top cover is detachably and fixedly installed on the top of the preheating tank. A first guide plate and a second guide plate are sequentially fixedly installed on the bottom edge of the top cover, with the second guide plate installed above the first guide plate. A conical water receiving hopper is fixedly connected to the bottom end of the first guide plate. A liquid guide pipe connects the bottom of the conical water receiving hopper to the top of the liquid storage tank. A control valve is installed at the bottom of the liquid storage tank. An inverted conical block is fixedly connected to the center of the bottom of the top cover. As the raw liquid in the preheating tank is heated, the hot air rises and condenses into water droplets upon contact with the bottom of the top cover and the conical surface of the inverted conical block. Guided by the inverted conical block, the water droplets flow downwards along it and fall down after accumulating. Combined with the staggered arrangement of the first and second guide plates, the first and second guide plates guide the falling water droplets, causing a large number of water droplets to form a stream that flows and accumulates in the conical water receiving hopper, thus collecting the condensed water droplets.

[0009] Preferably, the liquid storage chamber is arc-shaped, and there are two liquid storage chambers installed symmetrically along the central axis of the preheating tank. The liquid guide pipe is installed at an angle. As water accumulates in the conical water receiving hopper, the inclined liquid guide pipe can divert the water in the conical water receiving hopper into the interior of the liquid storage chamber, thus storing the water in the liquid storage chamber for subsequent use of condensate. This avoids contact between the condensate and the water in the preheating tank, ensuring that the preheating of the water in the preheating tank is not affected and reducing energy consumption.

[0010] Preferably, the first and second drainage plates are arranged alternately, the tip of the inverted conical block faces downward, and the inverted conical block is installed directly above the conical water receiving hopper.

[0011] Preferably, the heating mechanism includes a cylindrical shell, which is fixedly connected to the middle of the outer circumference of the preheating tank. The liquid storage tank is fixedly installed on the surface of the cylindrical shell. A bent pipe is connected to the bottom of the cylindrical shell. A heater is installed inside the cylindrical shell near the top. A heating coil is installed on the surface of the heater and is spirally wound around the middle of the outer circumference of the preheating tank. A heat-conducting plate is fixedly connected between the surface of the heating coil and the outer circumference of the preheating tank. The heater heats the heating coil, and the heat-conducting plate transfers heat to the preheating tank using the principle of heat transfer, thereby heating the water in the preheating tank. The spiral shape of the heating coil increases the contact area between the heating coil and the preheating tank, further facilitating the heating of the preheating tank.

[0012] Preferably, the central axis of the cylindrical shell coincides with the central axis of the preheating tank. The heating coil is spiral-shaped, and the preheating tank passes through the center of the heating coil. By wrapping the surface of the preheating tank with the cylindrical shell, heat dissipation inside the cylindrical shell can be reduced. As the heating coil continues to heat, the temperature inside the cylindrical shell rises, and the condensate in the liquid storage tank is heated through heat transfer, thereby raising the temperature of the water in the liquid storage tank, which plays a role in heat preservation, reducing energy consumption, and achieving energy saving.

[0013] Preferably, the impurity removal mechanism includes an impurity removal tank, a water pump fixedly installed at the bottom of the surface of the impurity removal tank, a right-angle inlet pipe connected to the side of the top of the impurity removal tank, a servo motor fixedly installed at the middle of the top of the impurity removal tank, a conical filter screen fixedly connected to the inner cavity of the impurity removal tank near the top, an annular guide rail fixedly connected to the top of the conical surface of the conical filter screen, a herringbone rod slidably installed inside the annular guide rail, an elastic cleaning brush fixedly connected to the bottom of the herringbone rod, and an auxiliary component installed in the middle of the inside of the impurity removal tank. The wastewater to be treated is injected into the inside of the impurity removal tank through the right-angle inlet pipe, so that the wastewater flows onto the surface of the conical filter screen, passes through the conical filter screen and collects at the bottom of the inner cavity of the impurity removal tank, while the particulate impurities in the wastewater are filtered down by the conical filter screen, thus filtering the impurities and achieving a pretreatment effect. Furthermore, due to the conical shape of the filter screen, the filtered particulate impurities will roll downwards, preventing impurity accumulation.

[0014] Preferably, the water inlet at the bottom of the water pump penetrates the surface of the impurity removal tank and extends into its interior, and the bottom end of the elastic cleaning brush is in contact with the conical surface of the conical filter screen.

[0015] Preferably, the auxiliary component includes a connecting pipe and a bottom shell. The connecting pipe is rotatably installed between the top and bottom of the impurity removal tank's inner cavity, and its outer surface is rotatably installed at the center of the top of the conical filter screen. The top of the connecting pipe is fixedly installed to the output end of a servo motor via a coupling. The top of the bottom shell is fixedly installed to the bottom of the impurity removal tank via screws. A fan is installed at the bottom of the bottom shell's inner cavity, and the fan's intake port is connected to a Z-shaped pipe. A nozzle is connected to the top of the outer surface of the connecting pipe, and the bottom of the nozzle is fixedly installed... A lever is fixedly installed, connecting the air inlet of the blower to the Z-shaped pipe. The end of the Z-shaped pipe away from the blower is connected to the bend pipe, allowing some hot air inside the cylindrical shell to be drawn out. Under the transmission of the connecting pipe, the hot air is blown from the nozzles on the nozzle surface onto the surface of the conical filter screen. The airflow blown out by the nozzles on the nozzle surface can blow away the particles and debris remaining on the surface of the conical filter screen, causing the particles and debris to roll downwards. It also breaks the water film formed on the surface of the conical filter screen, disrupting the balance of the water film and helping the sewage flow downwards.

[0016] Preferably, the bottom of the outer circular surface of the connecting pipe is sealed to the bottom of the inner cavity of the impurity removal tank. The connecting pipe is installed vertically, and its axis coincides with the axis of the impurity removal tank. The air outlet of the blower is rotatably installed with the bottom end of the connecting pipe through a rotating coupling. The hot airflow blown out by the nozzle on the surface of the nozzle raises the temperature of the conical filter screen. This causes the sewage to come into contact with the conical filter screen, and the temperature of the sewage also rises. As the temperature rises, the oil mixed in the sewage becomes less dense and does not easily stick to the surface of the conical filter screen, which helps to reduce the impact of oil and fully recover and reuse heat.

[0017] Preferably, the nozzle of the spray head faces the conical surface of the conical filter screen. There are three levers, which are evenly distributed at the bottom of the spray head. The levers are installed at an angle, and the bottom end of the levers extends to the middle of the herringbone rod. By rotating the connecting tube, the spray head can be driven to rotate, so that the spray head rotates in a circle to blow air all over the conical filter screen. The levers are also driven to rotate by the spray head, so that the spray head contacts the herringbone rod, so that the herringbone rod is driven by the lever. Under the guidance of the annular guide rail, the herringbone rod drives the elastic cleaning brush to rotate, so as to brush away the impurities remaining on the surface of the conical filter screen and achieve the self-cleaning function.

[0018] This invention provides an MVR preheating device with a filtration mechanism. It has the following beneficial effects:

[0019] 1. The MVR preheating device with a filtration mechanism, as the raw liquid in the preheating tank is heated, the hot air rises and condenses into water droplets upon contact with the bottom of the top cover and the conical surface of the inverted conical block. Under the guidance of the inverted conical block, the water droplets flow downwards along the block and fall down after accumulating. Combined with the staggered arrangement of the first and second guide plates, the first and second guide plates guide the falling water droplets, causing a large number of water droplets to form a stream that flows and accumulates in the conical water receiving hopper, thereby collecting and treating the condensed water droplets.

[0020] Second, the MVR preheating device with a filtration mechanism, as water accumulates in the conical water receiving hopper, uses a liquid guide pipe in an inclined state to guide the water in the conical water receiving hopper to the interior of the liquid storage tank, so that the water can be stored in the liquid storage tank for subsequent use of condensate. This avoids the condensate from coming into contact with the water in the preheating tank, so as not to affect the preheating of the water in the preheating tank and reduce energy consumption.

[0021] Third, the MVR preheating device with a filtration mechanism uses a heater to heat the heating coil and uses the principle of heat transfer to transfer heat to the preheating tank through the heat-conducting plate, thereby heating the water in the preheating tank. The spiral shape of the heating coil increases the contact area between the heating coil and the preheating tank, which further helps to heat the preheating tank.

[0022] IV. The MVR preheating device with a filtration mechanism uses a cylindrical shell wrapped around the surface of the preheating tank to reduce heat dissipation from the cylindrical shell. As the heating coil continues to heat, the temperature inside the cylindrical shell rises, and through heat transfer, the condensate in the storage tank is heated, thereby raising the temperature of the water in the storage tank, which plays a role in heat preservation, reducing energy consumption, and achieving energy saving.

[0023] 5. The MVR preheating device with a filtration mechanism injects the wastewater to be treated into the interior of the impurity removal tank through a right-angle inlet pipe, allowing the wastewater to flow onto the surface of the conical filter screen. The wastewater passes through the conical filter screen and collects at the bottom of the inner cavity of the impurity removal tank, while the particulate impurities in the wastewater are filtered down by the conical filter screen, thus filtering the impurities and achieving a pretreatment effect. Furthermore, the conical shape of the filter screen causes the filtered particulate impurities to roll downwards, preventing impurity accumulation.

[0024] VI. The MVR preheating device with a filtration mechanism utilizes the air inlet of the blower connected to the Z-shaped pipe, and connects the end of the Z-shaped pipe away from the blower to the bend pipe, so that some hot air inside the cylindrical shell is drawn out. Under the transport of the connecting pipe, the hot air is blown from the nozzle on the surface of the nozzle onto the surface of the conical filter screen. The airflow blown out by the nozzle on the surface of the nozzle can blow away the particulate matter remaining on the surface of the conical filter screen, causing the particulate matter to roll downwards and destroying the water film formed on the surface of the conical filter screen, breaking the balance of the water film and helping the sewage to flow downwards.

[0025] 7. The MVR preheating device with a filtration mechanism raises the temperature of the conical filter screen by blowing hot air from the nozzles on the nozzle surface. When the sewage comes into contact with the conical filter screen, the temperature of the sewage also rises. As the temperature rises, the oil mixed in the sewage becomes less dense and does not easily stick to the surface of the conical filter screen, which helps to reduce the impact of oil and fully recover and reuse heat.

[0026] 8. The MVR preheating device with a filtration mechanism can drive the nozzle to rotate by rotating the connecting round tube, causing the nozzle to rotate circumferentially and blow air all over the conical filter screen. The lever is also driven to rotate by the nozzle, so that the nozzle contacts the herringbone rod, causing the herringbone rod to be driven by the lever. Under the guidance of the annular guide rail, the herringbone rod drives the elastic cleaning brush to rotate, which can brush away the impurities remaining on the surface of the conical filter screen and achieve a self-cleaning function. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the MVR preheating device with a filtration mechanism according to the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of the MVR preheating device with a filtration mechanism according to the present invention.

[0029] Figure 3 This is a schematic diagram of the connection structure between the condensation treatment mechanism and the preheating tank of the present invention;

[0030] Figure 4 This is a schematic diagram of the overall structure of the condensation treatment mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the condensation treatment mechanism of the present invention.

[0032] Figure 6 This is a schematic diagram of the connection structure between the heating mechanism and the preheating tank of the present invention;

[0033] Figure 7 This is a schematic diagram of the connection structure between the impurity removal mechanism and the water pump of the present invention;

[0034] Figure 8 This is a schematic diagram of the overall structure of the impurity removal mechanism of the present invention.

[0035] In the diagram: 1. Preheating tank; 2. Impurity removal mechanism; 3. Water pump; 4. Drain pipe; 5. Heating mechanism; 6. Condensation treatment mechanism; 21. Impurity removal tank; 22. Right-angle inlet pipe; 23. Servo motor; 24. Conical filter screen; 25. Circular guide rail; 26. Herringbone rod; 27. Flexible cleaning brush; 28. Auxiliary components; 281. Connecting round pipe; 282. Bottom shell; 283. Z-shaped pipe; 284. Nozzle; 285. Lever; 286. Fan; 51. Cylindrical shell; 52. Bent pipe; 53. Heater; 54. Heating coil; 55. Heat-conducting plate; 61. Top cover; 62. Liquid storage tank; 63. First diversion plate; 64. Second diversion plate; 65. Liquid guide pipe; 66. Control valve; 67. Inverted conical block; 68. Conical water receiving hopper. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution:

[0038] A preheating device for MVR with a filtration mechanism includes:

[0039] A preheating tank 1 and a cleaning mechanism 2 are provided. A water pump 3 is installed between the top of the surface of the preheating tank 1 and the cleaning mechanism 2. A drain pipe 4 is installed at the bottom of the preheating tank 1. A heating mechanism 5 is installed on the surface of the preheating tank 1.

[0040] The condensation treatment mechanism 6 is used to collect and reuse the condensate in the preheating tank 1. The condensation treatment mechanism 6 is installed on the top of the preheating tank 1.

[0041] The condensation treatment mechanism 6 includes a top cover 61 and a liquid storage tank 62. The top cover 61 is detachably and fixedly installed on the top of the preheating tank 1. A first guide plate 63 and a second guide plate 64 are sequentially fixedly installed on the bottom edge of the top cover 61, with the second guide plate 64 installed above the first guide plate 63. A conical water receiving hopper 68 is fixedly connected to the bottom of the first guide plate 63. A liquid guide pipe 65 connects the bottom of the surface of the conical water receiving hopper 68 and the top of the liquid storage tank 62. A control valve 66 is installed at the bottom of the liquid storage tank 62. An inverted conical block 6 is fixedly connected to the center of the bottom of the top cover 61. 7. As the raw liquid in the preheating tank 1 is heated, the hot air rises and comes into contact with the bottom of the top cover 61 and the conical surface of the inverted conical block 67, where it condenses into water droplets. Under the guidance of the inverted conical block 67, the water droplets flow downwards along the inverted conical block 67 and fall down after gathering. Combined with the staggered arrangement between the first guide plate 63 and the second guide plate 64, the first guide plate 63 and the second guide plate 64 guide the falling water droplets, so that a large number of water droplets form a stream and flow into the conical water receiving hopper 68 to collect and process the condensed water droplets.

[0042] The liquid storage chamber 62 is arc-shaped, and there are two liquid storage chambers 62. The two liquid storage chambers 62 are symmetrically installed along the central axis of the preheating tank 1, and the liquid guide pipe 65 is installed at an angle.

[0043] As water accumulates in the conical water collection hopper 68, the liquid guide pipe 65 is tilted, allowing the water in the conical water collection hopper 68 to be diverted into the liquid storage tank 62. This allows the water to be stored in the liquid storage tank 62, facilitating the subsequent use of the condensate. It also prevents the condensate from coming into contact with the water in the preheating tank 1, thus ensuring that the preheating of the water in the preheating tank 1 is not affected and reducing energy consumption.

[0044] The first drain plate 63 and the second drain plate 64 are arranged alternately, the tip of the inverted cone block 67 faces downward, and the inverted cone block 67 is installed directly above the cone-shaped water receiving hopper 68.

[0045] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 6 As shown:

[0046] The heating mechanism 5 includes a cylindrical shell 51, which is fixedly connected to the middle of the outer surface of the preheating tank 1. The liquid storage tank 62 is fixedly installed on the surface of the cylindrical shell 51. A bent pipe 52 is connected to the bottom of the cylindrical shell 51. A heater 53 is installed inside the cylindrical shell 51 near the top. A heating coil 54 is installed on the surface of the heater 53 and is spirally wound around the middle of the outer surface of the preheating tank 1. A heat-conducting plate 55 is fixedly connected between the surface of the heating coil 54 and the outer surface of the preheating tank 1. When the operator turns on the heater 53, the heater 53 heats the heating coil 54. Using the principle of heat transfer, the heat-conducting plate 55 transfers heat to the preheating tank 1, thus heating the water in the preheating tank 1. The spiral shape of the heating coil 54 increases the contact area between the heating coil 54 and the preheating tank 1, further aiding in heating the preheating tank 1.

[0047] The central axis of the cylindrical shell 51 coincides with the central axis of the preheating tank 1. The heating coil 54 is spiral-shaped, and the preheating tank 1 passes through the center of the heating coil 54.

[0048] By wrapping the surface of the preheating tank 1 with the cylindrical shell 51, heat dissipation inside the cylindrical shell 51 can be reduced. As the heating coil 54 continues to heat, the temperature inside the cylindrical shell 51 rises, and the condensate in the liquid storage tank 62 is heated through heat transfer, thereby raising the temperature of the water in the liquid storage tank 62, which serves as a heat preservation function and reduces energy consumption.

[0049] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 1 to 8 As shown:

[0050] The impurity removal mechanism 2 includes an impurity removal tank 21, a water pump 3 fixedly installed at the bottom of the surface of the impurity removal tank 21, a right-angle inlet pipe 22 connected to the side of the top of the impurity removal tank 21, a servo motor 23 fixedly installed at the middle of the top of the impurity removal tank 21, a conical filter screen 24 fixedly connected to the inner cavity of the impurity removal tank 21 near the top, an annular guide rail 25 fixedly connected to the top of the conical surface of the conical filter screen 24, a herringbone rod 26 slidably installed inside the annular guide rail 25, and an elastic cleaning brush 27 fixedly connected to the bottom of the herringbone rod 26. An auxiliary component 28 is installed in the middle of the interior of the waste removal tank 21. The wastewater to be treated is injected into the interior of the waste removal tank 21 through the right-angle inlet pipe 22, so that the wastewater flows onto the surface of the conical filter screen 24. The wastewater passes through the conical filter screen 24 and collects at the bottom of the inner cavity of the waste removal tank 21. The particulate impurities in the wastewater are filtered down by the conical filter screen 24, which can filter the impurities and achieve the effect of pretreatment. In addition, the conical filter screen 24 is conical, and the filtered particulate impurities will roll down to avoid the accumulation of impurities.

[0051] The water inlet at the bottom of the water pump 3 penetrates the surface of the impurity removal tank 21 and extends into its interior, and the bottom end of the elastic cleaning brush 27 is in contact with the conical surface of the conical filter screen 24.

[0052] The auxiliary component 28 includes a connecting pipe 281 and a bottom shell 282. The connecting pipe 281 is rotatably installed between the top and bottom of the inner cavity of the impurity removal tank 21, and the outer surface of the connecting pipe 281 is rotatably installed at the center of the top of the conical filter screen 24. The top of the connecting pipe 281 is fixedly installed to the output end of the servo motor 23 via a coupling. The top of the bottom shell 282 is fixedly installed to the bottom of the impurity removal tank 21 via screws. A fan 286 is installed at the bottom of the inner cavity of the bottom shell 282. The air intake of the fan 286 is connected to a Z-shaped pipe 283. A nozzle 284 is connected to the top of the outer surface of the connecting pipe 281. A lever 285 is fixedly installed at the bottom of the nozzle 284. Personnel start the blower 286 to work, using the air inlet of the blower 286 to connect with the Z-shaped pipe 283, and connecting the end of the Z-shaped pipe 283 away from the blower 286 to the bend pipe 52, so that some hot air inside the cylindrical shell 51 is drawn out. Under the transmission of the connecting pipe 281, the hot air is blown from the nozzle on the surface of the nozzle 284 to the surface of the conical filter screen 24. The airflow blown out by the nozzle on the surface of the nozzle 284 can blow away the particulate matter remaining on the surface of the conical filter screen 24, causing the particulate matter to roll downwards, and destroying the water film formed on the surface of the conical filter screen 24, breaking the balance of the water film, and helping the sewage to flow downwards.

[0053] The bottom of the outer surface of the connecting pipe 281 is sealed to the bottom of the inner cavity of the impurity removal tank 21. The connecting pipe 281 is installed vertically, and the axis of the connecting pipe 281 coincides with the axis of the impurity removal tank 21. The air outlet of the blower 286 is rotatably installed with the bottom end of the connecting pipe 281 through a rotating coupling. The hot airflow blown out by the nozzle on the surface of the nozzle 284 raises the temperature of the conical filter screen 24, so that when the sewage comes into contact with the conical filter screen 24, the temperature of the sewage will also rise. As the temperature rises, the oil mixed in the sewage becomes thinner and does not easily stick to the surface of the conical filter screen 24.

[0054] The nozzle of the spray head 284 faces the conical surface of the conical filter screen 24. There are three levers 285, which are evenly distributed at the bottom of the spray head 284. The levers 285 are installed at an angle, and the bottom end of the levers 285 extends to the middle of the herringbone rod 26. By rotating the connecting tube 281, the spray head 284 can be driven to rotate, so that the spray head 284 rotates in a circle to blow air all over the conical filter screen 24. The levers 285 are driven to rotate with the spray head 284, so that the spray head 284 contacts the herringbone rod 26, so that the herringbone rod 26 is driven by the levers 285. Under the guidance of the annular guide rail 25, the herringbone rod 26 drives the elastic cleaning brush 27 to rotate, so as to brush away and clean the impurities remaining on the surface of the conical filter screen 24.

[0055] When in use, first turn on the heater 53, and use the heater 53 to heat the heating coil 54 to preheat the entire preheating tank 1.

[0056] The wastewater to be treated is injected into the interior of the impurity removal tank 21 through the right-angle inlet pipe 22, so that the wastewater flows onto the surface of the conical filter screen 24. The wastewater passes through the conical filter screen 24 and collects at the bottom of the inner cavity of the impurity removal tank 21, while the particulate impurities in the wastewater are filtered down by the conical filter screen 24, thus filtering the impurities and achieving the effect of pretreatment. In addition, the conical filter screen 24 is conical, and the filtered particulate impurities will roll down to avoid the accumulation of impurities.

[0057] The staff turns on the blower 286 and connects the air inlet of the blower 286 with the Z-shaped pipe 283. The end of the Z-shaped pipe 283 away from the blower 286 is connected to the bent pipe 52, so that some hot air inside the cylindrical shell 51 is drawn out. Under the transmission of the connecting pipe 281, the hot air is blown from the nozzle on the surface of the nozzle 284 to the surface of the conical filter screen 24. The airflow blown out by the nozzle on the surface of the nozzle 284 can blow away the particulate matter remaining on the surface of the conical filter screen 24, causing the particulate matter to roll downwards and destroying the water film formed on the surface of the conical filter screen 24, breaking the balance of the water film and helping the sewage to flow downwards.

[0058] At the same time, the hot airflow blown out by the nozzle on the surface of the nozzle 284 raises the temperature of the conical filter screen 24, so that when the sewage comes into contact with the conical filter screen 24, the temperature of the sewage will also rise. As the temperature rises, the oil mixed in the sewage becomes thinner and less likely to stick to the surface of the conical filter screen 24.

[0059] Furthermore, the rotation of the connecting tube 281 can drive the nozzle 284 to rotate, causing the nozzle 284 to rotate circumferentially and blow air all over the conical filter screen 24. The lever 285 will also be driven to rotate by the nozzle 284, so that the nozzle 284 contacts the herringbone rod 26, causing the herringbone rod 26 to be driven by the lever 285. Under the guidance of the annular guide rail 25, the herringbone rod 26 drives the elastic cleaning brush 27 to rotate, thereby brushing away and cleaning the impurities remaining on the surface of the conical filter screen 24.

[0060] The filtered wastewater is collected at the bottom of the inner cavity of the impurity removal tank 21, and is sucked out by the suction pump 3 and sprayed into the interior of the preheating tank 1 through the outlet of the suction pump 3.

[0061] By utilizing the principle of heat transfer, the heat-conducting plate 55 transfers heat to the preheating tank 1, thereby heating the water in the preheating tank 1. The water in the preheating tank 1 is preheated. Furthermore, by utilizing the spiral shape of the heating coil 54, the contact area between the heating coil 54 and the preheating tank 1 is increased, which further helps to heat the preheating tank 1.

[0062] Furthermore, as the raw liquid in the preheating tank 1 is heated, the hot air rises and comes into contact with the bottom of the top cover 61 and the conical surface of the inverted conical block 67, where it condenses into water droplets. Under the guidance of the inverted conical block 67, the water droplets flow downwards along the inverted conical block 67, and after the water droplets gather, they fall downwards. Combined with the staggered arrangement between the first guide plate 63 and the second guide plate 64, the first guide plate 63 and the second guide plate 64 guide the falling water droplets, so that a large number of water droplets form a stream and flow into the conical water receiving hopper 68 to collect and process the condensed water droplets.

[0063] As water accumulates in the conical water collection hopper 68, the liquid guide pipe 65 is tilted, allowing the water in the conical water collection hopper 68 to be diverted into the liquid storage tank 62. This allows the water to be stored in the liquid storage tank 62, facilitating the subsequent use of the condensate. It also prevents the condensate from coming into contact with the water in the preheating tank 1, thus not affecting the preheating of the water in the preheating tank 1 and reducing energy consumption.

[0064] By wrapping the surface of the preheating tank 1 with the cylindrical shell 51, the heat dissipation inside the cylindrical shell 51 can be reduced. As the heating coil 54 continues to heat, the temperature inside the cylindrical shell 51 rises, and the condensate in the liquid storage tank 62 is heated through heat transfer, thereby raising the temperature of the water in the liquid storage tank 62, which plays a role in heat preservation and reduces energy consumption.

[0065] After the wastewater is preheated, it can be discharged into the subsequent treatment equipment through the drain pipe 4. Then, open the cover plate on the surface of the impurity removal tank 21 and clean the impurities filtered by the conical filter screen 24.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An MVR preheating device with a filtration mechanism, characterized in that, include: A preheating tank (1) and a cleaning mechanism (2) are provided. A water pump (3) is installed between the top of the surface of the preheating tank (1) and the cleaning mechanism (2). A drain pipe (4) is installed at the bottom of the preheating tank (1). A heating mechanism (5) is installed on the surface of the preheating tank (1). A condensation treatment mechanism (6) is used to collect and reuse the condensate in the preheating tank (1). The condensation treatment mechanism (6) is installed on the top of the preheating tank (1). The condensation treatment mechanism (6) includes a top cover (61) and a liquid storage tank (62). The top cover (61) is detachably fixedly installed on the top of the preheating tank (1). A first guide plate (63) and a second guide plate (64) are fixedly installed sequentially at the bottom edge of the top cover (61). The second guide plate (64) is installed above the first guide plate (63). A conical water receiving hopper (68) is fixedly connected to the bottom of the first guide plate (63). A liquid guide pipe (65) is connected between the bottom of the surface of the conical water receiving hopper (68) and the top of the liquid storage tank (62). A control valve (66) is installed at the bottom of the liquid storage tank (62). An inverted conical block (67) is fixedly connected to the center of the bottom of the top cover (61). The heating mechanism (5) includes a cylindrical shell (51), which is fixedly connected to the middle of the outer surface of the preheating tank (1), and the liquid storage tank (62) is fixedly installed on the surface of the cylindrical shell (51). A bent pipe (52) is connected to the bottom of the cylindrical shell (51). A heater (53) is installed inside the cylindrical shell (51) and near the top. A heating coil (54) is installed on the surface of the heater (53), and the heating coil (54) is spirally wound around the middle of the outer surface of the preheating tank (1). A heat-conducting plate (55) is fixedly connected between the surface of the heating coil (54) and the outer surface of the preheating tank (1). The impurity removal mechanism (2) includes an impurity removal tank (21), a water pump (3) is fixedly installed at the bottom of the surface of the impurity removal tank (21), a right-angle liquid inlet pipe (22) is connected to the side of the top of the impurity removal tank (21), a servo motor (23) is fixedly installed at the middle of the top of the impurity removal tank (21), a conical filter screen (24) is fixedly connected to the inner cavity of the impurity removal tank (21) near the top, an annular guide rail (25) is fixedly connected to the top of the conical surface of the conical filter screen (24), a herringbone rod (26) is slidably installed inside the annular guide rail (25), an elastic cleaning brush (27) is fixedly connected to the bottom of the herringbone rod (26), and an auxiliary component (28) is installed in the middle of the inside of the impurity removal tank (21). The auxiliary component (28) includes a connecting tube (281) and a bottom shell (282). The connecting tube (281) is rotatably installed between the top and bottom of the inner cavity of the impurity removal tank (21), and the outer circular surface of the connecting tube (281) is rotatably installed at the center of the top of the conical filter screen (24). The top end of the connecting tube (281) is fixedly installed with the output end of the servo motor (23) by a coupling. The top of the bottom shell (282) is fixedly installed with the bottom of the impurity removal tank (21) by screws. A fan (286) is installed at the bottom of the inner cavity of the bottom shell (282). The air inlet of the fan (286) is connected to a Z-shaped pipe (283). The top of the outer circular surface of the connecting tube (281) is connected to a nozzle (284). A lever (285) is fixedly installed at the bottom of the nozzle (284).

2. The MVR preheating device with a filtration mechanism according to claim 1, characterized in that: The liquid storage tank (62) is arc-shaped, and there are two liquid storage tanks (62). The two liquid storage tanks (62) are symmetrically installed along the central axis of the preheating tank (1), and the liquid guide pipe (65) is installed at an angle.

3. The MVR preheating device with a filtration mechanism according to claim 1, characterized in that: The first drain plate (63) and the second drain plate (64) are arranged alternately, the tip of the inverted cone block (67) is facing down, and the inverted cone block (67) is installed directly above the cone-shaped water receiving hopper (68).

4. The MVR preheating device with a filtration mechanism according to claim 1, characterized in that: The central axis of the cylindrical shell (51) coincides with the central axis of the preheating tank (1). The heating coil (54) is spiral-shaped, and the preheating tank (1) passes through the center of the heating coil (54).

5. The MVR preheating device with a filtration mechanism according to claim 1, characterized in that: The water inlet end of the bottom of the water pump (3) penetrates the surface of the impurity removal tank (21) and extends into its interior, and the bottom end of the elastic cleaning brush (27) is in contact with the conical surface of the conical filter screen (24).

6. The MVR preheating device with a filtration mechanism according to claim 1, characterized in that: The bottom of the outer surface of the connecting pipe (281) is sealed between the bottom of the inner cavity of the impurity removal tank (21). The connecting pipe (281) is installed vertically, and the axis of the connecting pipe (281) coincides with the axis of the impurity removal tank (21). The air outlet of the fan (286) is rotatably installed with the bottom end of the connecting pipe (281) through a rotating coupling.

7. The MVR preheating device with a filtration mechanism according to claim 1, characterized in that: The nozzle of the nozzle (284) faces the conical surface of the conical filter screen (24). There are three levers (285), and the three levers (285) are evenly distributed at the bottom of the nozzle (284). The levers (285) are installed at an angle, and the bottom end of the levers (285) extends to the middle of the herringbone rod (26).

Images