Compact water spraying scattering bubble tower for oily sludge treatment

Abstract

The invention relates to the technical field of waste gas treatment equipment, and discloses a compact water spraying scattering bubble tower for oily sludge treatment, the compact water spraying scattering bubble tower comprises a tower body and a water tank, the bottom of the tower body is provided with a sludge discharge backflushing device, the tower body is internally provided with a partition plate and a mounting plate in sequence from top to bottom, and the bottom of the mounting plate is provided with a scattering bubble pipe; a central pipeline is arranged at the top of the mounting plate, the top end of the central pipeline is arranged above the partition plate, a first spiral blade is arranged in the central pipeline, a second spiral blade is arranged between the central pipeline above the partition plate and the tower body, an exhaust port is formed in the tower body above the partition plate, and an air inlet is formed in the tower body between the partition plate and the mounting plate; a water distribution pipe is arranged between the partition plate and the mounting plate, the tower body below the mounting plate is connected with a water tank, a cooling pipe is arranged at the bottom of the water tank, and the water tank is connected with the water distribution pipe through a water pump. According to the invention, ash in the process gas can be efficiently treated, the temperature of the process gas is reduced, oil components in the process gas can be recovered, and the treatment effect of the high-temperature process gas is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment equipment, and in particular to a compact water-spraying scattering bubbling tower for treating oily sludge. Background Art

[0002] Oily sludge is a mixture of oil, water and mud formed by mixing with soil during the process of oil extraction, storage, refining, processing and transportation. Oily sludge has a large output, complex composition and is difficult to handle. According to statistics, my country produces up to 3x10 6 Tons. Oily sludge contains a large number of toxic and harmful substances that are difficult to decompose, such as heavy metals, parasites, pathogens and radionuclides. Directly stacking oily sludge will occupy a large area of ​​land. The toxic and harmful substances in oily sludge will cause serious pollution to the surrounding soil, groundwater and surface water through diffusion and volatilization, and cause great damage to the surrounding animals and plants. Therefore, oily sludge must be reduced, recycled and harmlessly treated.

[0003] In the process of reducing, recycling and harmless treatment of oily sludge, there are generally incineration process links, drying process links or pyrolysis process links, which will produce a large amount of high-temperature process gas mixed with dust ash, oil components and water vapor. If these high-temperature process gases are not treated, they will cause air pollution, odor diffusion, waste of oil components and other problems. Therefore, it is necessary to cool down and remove dust from the high-temperature process gas generated in the process of oily sludge treatment to prevent the process gas from polluting the environment and recover the non-renewable petroleum resources in it.

[0004] The conventional high-temperature process gas treatment process is the spray process, and its core equipment is the spray tower. The spray tower can be divided into packed type and cavity type. The packed spray tower is equipped with fillers in the equipment, and the heat exchange efficiency between flue gas and water is high, while increasing the flow resistance of flue gas. However, the high-temperature process gas generated in the oily sludge treatment process contains ash and oil components. The ash particles are at the micron level, which makes the filler easy to be blocked. Therefore, most high-temperature process gas spray equipment is a cavity spray tower. The general structure of the cavity spray tower is a relatively high cylindrical vertical container. The process gas enters from the lower part of the tower and exits from the top. Multiple spray heads are set in the upper part of the container to cool and spray the process gas when it passes through.

[0005] There are at least the following problems in the prior art: First, during the use of the cavity spray tower, ash will participate in the circulation of the spray water, causing blockage of the spray head; second, during the use of the cavity spray tower, ash escape is inevitable, which brings great trouble to the subsequent process gas treatment system, causing pipeline blockage, fan vibration wear, heat exchanger blockage, and increased on-site maintenance workload and maintenance intensity; third, the process gas after spray treatment is not separated from gas and liquid; fourth, the equipment size of the cavity spray tower is usually relatively large; fifth, there is unpredictable ash content in the high-temperature process gas, which is very easy to accumulate at the bottom of the tower to form a mud phase, and the amount of mud phase accumulation is negatively correlated with the cleanliness of the spray liquid. The accumulation of the mud phase will indirectly affect the spray effect. The traditional cavity spray tower adopts a passive regular cleaning method to deal with the mud phase, which requires regular shutdown for inspection and maintenance, but there are flammable and explosive risks in the treatment of oily sludge, and the heater startup time is long. Shutdown to deal with the mud phase will affect the production efficiency of the equipment. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention develops a compact water-spraying scattering bubbling tower for treating oily sludge. The present invention can not only treat the ash in the process gas in a smaller space and reduce the temperature of the process gas, but also recover the valuable oil component in the process gas and the moisture in the process gas after bubbling, thereby effectively improving the treatment effect of the high-temperature process gas.

[0007] The technical solution to the technical problem solved by the present invention is: a compact water-spraying scattering bubbling tower for treating oily sludge, comprising a tower body and a water tank, a sludge discharge recoil device being provided at the bottom of the tower body, a partition plate and a mounting plate being provided in sequence from top to bottom inside the tower body, a plurality of groups of scattering bubbling tubes being evenly provided at the bottom of the mounting plate, a central pipe being vertically provided at the top of the mounting plate, the top end of the central pipe being arranged above the partition plate, a first spiral blade being provided in the central pipe, a second spiral blade being provided between the central pipe above the partition plate and the tower body, an exhaust port being provided on the tower body above the partition plate, an air inlet being provided on the tower body between the partition plate and the mounting plate, a water distribution pipe being provided between the partition plate and the mounting plate, the tower body below the mounting plate being connected to the top of the water tank, a cooling pipe being provided at the bottom of the water tank, and the water tank being connected to the water distribution pipe through a water pump.

[0008] As an optimization, several groups of water distribution ports are evenly arranged on the tower body between the partition plate and the mounting plate. The water distribution ports are detachably provided with a cover plate. The water distribution pipe is arranged on the cover plate. Several groups of sprinkler nozzles are evenly arranged at the bottom of the water distribution pipe. By providing the water distribution ports and the cover plate, it is convenient to disassemble and install the water distribution pipe and inspect the water distribution pipe; by providing the sprinkler nozzle, cold water can be atomized to mix the water mist with the high-temperature process gas, thereby improving the cooling effect.

[0009] As an optimization, a reflux pipe is provided on the partition plate, and the bottom end of the reflux pipe passes through the mounting plate and is arranged below the scattering bubbling pipe. By providing the reflux pipe, the liquid phase separated on the partition plate can be introduced into the bottom layer of the liquid phase in the scattering chamber.

[0010] As an optimization, the top of the first spiral blade is detachably connected to the top of the central pipe, which can reduce the difficulty of processing and manufacturing. The first spiral blade can be disassembled and replaced according to the corrosion situation, and blades with different pitches can be replaced according to application requirements. A support frame is provided on the outside of the second spiral blade, and the bottom of the support frame is set on the partition plate. A gap is provided between the support frame and the tower body. By setting up the support frame, the overall rigidity of the structure can be improved, non-welding fixation can be achieved, and the complicated welding manufacturing process can be avoided. It can be disassembled and replaced according to the corrosion situation, and blades with different pitches can be replaced according to application requirements.

[0011] As an optimization, the bottom of the tower body is conical, and a mud discharge port is provided in the center of the bottom of the tower body. The mud discharge recoil device includes a mud discharge pipe and a screw pump. The mud discharge port is connected to the input end of the screw pump through the mud discharge pipe. A recoil port is provided at one end of the mud discharge pipe close to the screw pump, and a spare port is provided at one end of the mud discharge pipe close to the mud discharge port. By setting up the mud discharge port, mud discharge pipe and screw pump, the mud phase at the bottom of the tower body can be discharged to avoid mud phase accumulation; by setting up the recoil port, a flushing water pump can be connected to flush the mud discharge pipe and the bottom of the tower body when mud phase accumulates; by setting up the spare port, it can be used to add detergent, and can also be used for quick drainage.

[0012] As an optimization, the scattering bubble tube includes a tube body and a bubble generation skirt. The bubble generation skirt is conical and arranged at the bottom of the tube body. The top of the tube body is connected to the mounting plate through a baffle. By setting the tube body, the process gas can be injected into the liquid phase; by setting the bubble generation skirt, the process gas can be broken into a large number of fine bubbles, thereby increasing the contact area with the liquid phase, improving the heat exchange efficiency, ash removal rate and oil component recovery rate.

[0013] As an optimization, an anti-connection overflow pipe is provided on the tower body below the mounting plate. The anti-connection overflow pipe is "U" shaped, and the connection between the anti-connection overflow pipe and the tower body is higher than the bubble generation skirt. By setting up the anti-connection overflow pipe, the dirty oil in the upper layer of the scattering chamber can be recovered into the container, and the "U"-shaped structure can store liquid, which can prevent the air in the container from flowing back into the scattering chamber, prevent the oxygen content in the process gas from rising, reduce the risk of combustion and explosion, and ensure that the process gas is always in a closed condition.

[0014] As an optimization, oil baffles and overflow plates are staggered at the connection between the tower body and the water tank. The oil baffles are arranged at the top of the connection between the tower body and the water tank, and the overflow plates are arranged at the bottom of the connection between the tower body and the water tank. A circulation channel is arranged between the oil baffles and the overflow plates. By arranging the oil baffles, the overflow plates and the circulation channel, the dirty oil in the upper layer of the scattering chamber can be prevented from entering the water tank, and the relatively clean circulating water in the middle layer of the scattering chamber can overflow back into the water tank for cooling, completing the cycle.

[0015] As an optimization, the cooling pipe includes a return water collection pipe, an inlet water collection pipe and several groups of serpentine branches, which are evenly arranged inside the water tank, with the top of the serpentine branch connected to the return water collection pipe, and the bottom of the serpentine branch connected to the inlet water collection pipe. By setting the return water collection pipe, the inlet water collection pipe and several groups of serpentine branches, the heat exchange medium is input from the inlet water collection pipe into the serpentine branch, thereby cooling the water in the water tank, and then discharged from the return water collection pipe after heat exchange, ensuring the cooling effect on the high-temperature process gas.

[0016] As an optimization, liquid level gauges are provided on the tower body and the water tank, and a water supply port is also provided on the water tank. A thermometer and a sewage outlet are also provided at the bottom of the water tank. By setting up a liquid level gauge, the liquid levels in the tower body scattering chamber and the water tank can be monitored respectively. If the liquid level in the scattering chamber is high, it is necessary to increase the overflow flow or increase the flow of the screw pump. If the liquid level in the scattering chamber is low, it is necessary to increase the water pump flow or reduce the flow of the screw pump. If the liquid level in the water tank is low, water can be replenished through the water supply port, or the flow of the screw pump can be reduced. By setting up a thermometer, the temperature of the circulating water in the water tank can be detected to ensure that the cooling function of the water circulation system can operate efficiently and normally. If the temperature of the circulating water in the water tank is high, the flow of the heat exchange medium is increased to speed up the circulation, or a large amount of cold water is directly added through the water supply port for cooling, and the hotter circulating water is discharged through the sewage outlet.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By arranging the tower body, top cover, partition plate, mounting plate and central pipeline, the tower body can be divided into a split chamber, a scattering chamber and a cyclone separation chamber. The split chamber is between the partition plate and the mounting plate, the scattering chamber is below the mounting plate, and the cyclone separation chamber is above the partition plate and in the central pipeline. The equipment occupies a small space as a whole, and can process the high-temperature process gas in sections to improve the processing effect and continuous operation stability. By arranging the air inlet, the high-temperature process gas can enter the split chamber, and the high-temperature process gas entering from the air inlet can be split so that the high-temperature process gas enters the scattering chamber evenly and thoroughly to avoid the situation where the top layer of liquid does not participate in the circulation. The situation can be avoided by local overheating that affects the cooling effect of scattering bubbling. By setting up the scattering bubbling tube, the high-temperature process gas in the diversion chamber can be guided to be uniformly injected into the liquid phase in the scattering chamber, and the high-temperature process gas can be subjected to ash removal and cooling treatment. The scattering bubbling tube causes the high-temperature process gas to form a large number of fine bubbles, which come into contact with the liquid phase in a large range to increase the contact area, thereby improving the heat exchange efficiency, ash removal rate and oil component recovery rate. By setting up the exhaust port, the first spiral blade and the second spiral blade, a complete airway can be formed in cooperation with the central pipeline. The process gas in the liquid phase floats up and then spirals up through the central pipeline, and then spirals down. The process gas is centrifuged during the spiral motion, thereby performing gas-liquid separation, reducing the humidity of the gas phase, and realizing the separation and treatment of the ash. Finally, the process gas is discharged from the tower body through the exhaust port to complete the process gas treatment. By setting up a water tank and a cooling pipe, the water in the water tank can be cooled. By setting up a water pump and a water distribution pipe, a water circulation system can be formed in conjunction with the water tank, the cooling pipe and the tower body, and the cold water in the water tank can be transported to the diversion chamber and sprayed. The cold water mist is mixed with the high-temperature process gas and cools the high-temperature process gas. The circulating water gathered by the cold water mist flows evenly into the scattering chamber through the scattering bubbling tube, which relatively completely replaces the above The hotter liquid phase in the layer, the ash carried in the circulating water is precipitated by gravity at the bottom of the tower body to form a mud phase, and the dirty oil sprayed down floats on the surface of the liquid phase. When the circulating water flows in the scattering bubbling tube, it can still cool down the high-temperature process gas in the scattering bubbling tube, and the cleaner liquid phase in the middle layer of the scattering chamber can return to the water tank for cooling to complete the cycle; by setting a mud discharge recoil device, the mud phase at the bottom of the scattering chamber can be discharged to avoid mud phase accumulation, ensure the cleanliness of the cold water, and can remove excess cold water to maintain the health of the liquid level in the treatment tower body, and can maintain a high dust reduction function for a long time, realizing the protection of the subsequent process gas treatment system. The present invention can not only process the ash in the process gas in a smaller space and reduce the temperature of the process gas, but also recover the valuable oil component in the process gas and the moisture of the process gas after bubbling, effectively improving the treatment effect of the high-temperature process gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A stereogram of an embodiment of the present invention Figure 1 .

[0020] Figure 2A stereogram of an embodiment of the present invention Figure 2 .

[0021] Figure 3 The figure is a schematic diagram of the internal structure of an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of a scattering bubbling tube in an embodiment of the present invention.

[0023] Figure 5 It is a schematic structural diagram of a first spiral blade and a stepped fixing ring in an embodiment of the present invention.

[0024] Figure 6 It is a schematic structural diagram of the second spiral blade and the support frame in an embodiment of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of a water distribution pipe, a sprinkler nozzle and a cover plate in one embodiment of the present invention.

[0026] In the figure: 1, tower body; 2, top cover; 3, bracket; 4, mud discharge recoil device; 5, partition plate; 6, mounting plate; 7, scattering bubbling tube; 8, central pipeline; 9, first spiral blade; 10, second spiral blade; 11, exhaust port; 12, air inlet; 13, sight glass; 14, water distribution pipe; 15, water tank; 16, cooling pipe; 17, water pump; 18, liquid supply pipe; 19, water distribution port; 20, cover plate; 21, sprinkler nozzle; 22, return pipe; 23, stepped fixing ring; 24, support frame; 25, mud discharge port; 26, anti-connection overflow pipe; 27, oil baffle plate; 28, overflow plate; 29, liquid level meter; 30, water replenishment port; 31, thermometer; 32, sewage outlet;

[0027] 41. Mud discharge pipe; 42. Screw pump; 43. Backwash port; 44. Spare port;

[0028] 71. tube body; 72. bubble generating skirt; 73. baffle;

[0029] 161. Return water collecting pipe; 162. Inlet water collecting pipe; 163. Serpentine branch pipe. DETAILED DESCRIPTION

[0030] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0031] Example 1

[0032] Figures 1 to 7 As an embodiment of the present invention, Figures 1 to 7As shown, a compact water-spraying scattering bubbling tower for treating oily sludge comprises a tower body 1 and a water tank 15. A top cover 2 is provided on the top of the tower body 1, a bracket 3 and a sludge discharge recoil device 4 are provided on the bottom of the tower body 1, a partition plate 5 and a mounting plate 6 are provided in sequence from top to bottom inside the tower body 1, a plurality of groups of scattering bubbling tubes 7 are evenly provided on the bottom of the mounting plate 6, a central pipe 8 is vertically provided on the top of the mounting plate 6, the top end of the central pipe 8 passes through the partition plate 5 and is arranged above the partition plate 5, a first spiral blade 9 is provided in the central pipe 8, and a central pipe above the partition plate 5 8 and the tower body 1 are provided with a second spiral blade 10, an exhaust port 11 is provided on the tower body 1 above the partition plate 5, an air inlet 12 and a sight glass 13 are provided on the tower body 1 between the partition plate 5 and the mounting plate 6, a water distribution pipe 14 is provided between the partition plate 5 and the mounting plate 6, the tower body 1 below the mounting plate 6 is connected to the top of the water tank 15, a cooling pipe 16 is provided at the bottom of the water tank 15, the water tank 15 is connected to the water distribution pipe 14 through a water pump 17 and a liquid supply pipe 18, and the water pump 17 and the liquid supply pipe 18 are connected as a soft connection, which can provide a shock absorbing effect and allow a certain installation error.

[0033] By arranging the tower body 1, the top cover 2, the partition plate 5, the mounting plate 6 and the central pipeline 8, the tower body 1 can be divided into a diversion chamber, a scattering chamber and a cyclone separation chamber. The diversion chamber is between the partition plate 5 and the mounting plate 6, the scattering chamber is below the mounting plate 6, and the cyclone separation chamber is above the partition plate 5 and the central pipeline 8. The overall equipment occupies a small space, and the high-temperature process gas can be processed in sections to improve the processing effect and the continuous operation stability; by arranging the air inlet 12, the high-temperature process gas can enter the diversion chamber, and the high-temperature process gas entering from the air inlet 12 can be diverted so that the high-temperature process gas enters the scattering chamber evenly and thoroughly, thereby avoiding the situation where the top layer of liquid does not participate in the circulation and avoiding local The overheating of the part affects the cooling effect of the scattering bubbling; by setting the scattering bubbling tube 7, the high-temperature process gas in the diversion chamber can be guided to be uniformly injected into the liquid phase in the scattering chamber, and the high-temperature process gas is subjected to ash removal and cooling treatment. The scattering bubbling tube 7 causes the high-temperature process gas to form a large number of fine bubbles, which come into contact with the liquid phase in a large range to increase the contact area, thereby improving the heat exchange efficiency, ash removal rate and oil component recovery rate; by setting the exhaust port 11, the first spiral blade 9 and the second spiral blade 10, a complete airway can be formed in conjunction with the central pipe 8. After the process gas in the liquid phase floats up, it spirals up through the central pipe 8 and then spirals down, so that the process gas is centrifuged during the spiral motion. , thereby performing gas-liquid separation, achieving the reduction of humidity in the gas phase, achieving the separation and treatment of ash, and finally the process gas is discharged from the tower body 1 through the exhaust port 11 to complete the process gas treatment; by arranging the water tank 15 and the cooling pipe 16, the water in the water tank 15 can be cooled; by arranging the water pump 17 and the water distribution pipe 14, the water tank 15, the cooling pipe 16 and the tower body 1 can be coordinated to form a water circulation system, and the cold water in the water tank 15 can be transported to the diversion chamber and sprayed, and the cold water mist is mixed with the high-temperature process gas and the high-temperature process gas is cooled. The circulating water formed by the cold water mist flows evenly into the scattering chamber through the scattering bubbling tube 7, relatively completely replacing the hotter liquid phase in the upper layer, and the ash carried in the circulating water is removed. The waste oil is precipitated by gravity at the bottom of the tower body 1 to form a mud phase, and the sprayed dirty oil floats on the surface of the liquid phase. The circulating water can still cool the high-temperature process gas in the scattering bubbling tube 7 when flowing in the scattering bubbling tube 7, and the cleaner liquid phase in the middle layer of the scattering chamber can return to the water tank 15 for cooling to complete the cycle. By setting the sight glass 13, the operation of the water distribution pipe 14 in the diversion chamber can be observed; by setting the mud discharge recoil device 4, the mud phase at the bottom of the scattering chamber can be discharged to avoid mud phase accumulation, ensure the cleanliness of the cold water, and can discharge excess cold water to maintain the health of the liquid level in the treatment tower body 1, and can maintain a high dust reduction function for a long time, thereby protecting the subsequent process gas treatment system.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, two groups of water distribution ports 19 are evenly arranged on the tower body 1 between the partition plate 5 and the mounting plate 6. A cover plate 20 is detachably arranged on the water distribution port 19. The water distribution pipe 14 is hook-shaped. The two groups of water distribution pipes 14 are symmetrically distributed about the center of the central pipe 8. The water distribution pipe 14 is arranged on the cover plate 20. The outer end of the water distribution pipe 14 is connected to the liquid supply pipe 18. A plurality of groups of sprinkler nozzles 21 are evenly arranged at the bottom of the water distribution pipe 14. By arranging the water distribution port 19 and the cover plate 20, the water distribution pipe 14 can be easily disassembled and assembled, and the water distribution pipe 14 and the sprinkler nozzles 21 can be inspected; by arranging the sprinkler nozzles 21, cold water can be atomized, so that the water mist and the high-temperature process gas are mixed, thereby improving the cooling effect.

[0035] like Figure 3 As shown, the partition plate 5 is provided with a reflux pipe 22, and the bottom end of the reflux pipe 22 passes through the mounting plate 6 and is arranged below the scattering bubbling tube 7. By providing the reflux pipe 22, the liquid phase separated on the partition plate 5 can be introduced into the bottom layer of the liquid phase in the scattering chamber.

[0036] like Figure 3 , Figure 5 and Figure 6 As shown, the top of the first spiral blade 9 is clamped with the top of the central pipe 8 through a stepped fixing ring 23, which can reduce the difficulty of processing and manufacturing. The first spiral blade 9 can be disassembled and replaced according to the corrosion situation, and blades with different pitches can be replaced according to application requirements. A support frame 24 is provided on the outside of the second spiral blade 10. The support frame 24 is a squirrel cage frame. The bottom of the support frame 24 is set on the partition plate 5, and a gap is provided between the support frame 24 and the tower body 1. By setting the support frame 24, the overall rigidity of the structure can be improved, non-welding fixation can be achieved, and a complicated welding manufacturing process can be avoided. It can be disassembled and replaced according to the corrosion situation, and blades with different pitches can be replaced according to application requirements.

[0037] like Figures 1 to 3 As shown, the bottom of the tower body 1 is conical, and a mud discharge port 25 is provided at the center of the bottom of the tower body 1. The mud discharge recoil device 4 includes a mud discharge pipe 41 and a screw pump 42. The mud discharge port 25 is connected to the input end of the screw pump 42 through the mud discharge pipe 41. A valve is provided at the connection between the mud discharge pipe 41 and the screw pump 42. A recoil port 43 is provided at one end of the mud discharge pipe 41 close to the screw pump 42. A spare port 44 is provided at one end of the mud discharge pipe 41 close to the mud discharge port 25. Valves are provided at the recoil port 43 and the spare port 44. By providing the mud discharge port 25, the mud discharge pipe 41 and the screw pump 42, the mud phase at the bottom of the tower body 1 can be discharged to avoid mud phase accumulation; by providing the recoil port 43, a flushing water pump can be connected to flush the mud discharge pipe 41 and the bottom of the tower body 1 when mud phase accumulates; by providing the spare port 44, it can be used to add detergent or to quickly drain.

[0038] like Figure 3 and Figure 4As shown, the scattering bubbling tube 7 includes a tube body 71 and a bubble generating skirt 72. The bubble generating skirt 72 is conical, and a plurality of groups of air holes are evenly arranged on the bubble generating skirt 72. The bubble generating skirt 72 is arranged at the bottom of the tube body 71. The top of the tube body 71 is connected to the mounting plate 6 through the baffle 73. The scattering bubbling tube 7 is arranged above the bottom of the oil baffle plate 27. By arranging the tube body 71, the process gas can be injected into the liquid phase; by arranging the bubble generating skirt 72, the process gas can be broken into a large number of fine bubbles, thereby increasing the contact area with the liquid phase, and improving the heat exchange efficiency, ash removal rate and oil component recovery rate.

[0039] like Figures 1 to 3 As shown, an anti-connection overflow pipe 26 is provided on the tower body 1 below the mounting plate 6. The anti-connection overflow pipe 26 is "U"-shaped, and the connection between the anti-connection overflow pipe 26 and the tower body 1 is higher than the bubble generation skirt 72. By providing the anti-connection overflow pipe 26, the dirty oil in the upper layer of the scattering chamber can be recovered into the container, and the "U"-shaped structure can store liquid, which can prevent the air in the container from flowing back into the scattering chamber, prevent the oxygen content in the process gas from rising, reduce the risk of combustion and explosion, and ensure that the process gas is always in a closed condition.

[0040] like Figure 3 As shown, the connection between the tower body 1 and the water tank 15 is staggered with oil baffles 27 and overflow plates 28, the oil baffles 27 are arranged at the top of the connection between the tower body 1 and the water tank 15, the overflow plates 28 are arranged at the bottom of the connection between the tower body 1 and the water tank 15, the bottom of the oil baffles 27 is arranged below the top of the overflow plates 28, and a circulation channel is arranged between the oil baffles 27 and the overflow plates 28. By arranging the oil baffles 27, the overflow plates 28 and the circulation channel, the dirty oil in the upper layer of the scattering chamber can be prevented from entering the water tank 15, and the relatively clean circulating water in the middle layer of the scattering chamber can overflow back into the water tank 15 for cooling, thereby completing the circulation.

[0041] like Figures 1 to 3 As shown, the cooling pipe 16 includes a return water collection pipe 161, an inlet water collection pipe 162 and a plurality of groups of serpentine branches 163, the plurality of groups of serpentine branches 163 are evenly arranged inside the water tank 15, the top of the serpentine branches 163 is connected to the return water collection pipe 161, the bottom of the serpentine branches 163 is connected to the inlet water collection pipe 162, and the water pump 17 is a submersible pump, which can directly extract the water with a lower temperature at the bottom of the water tank 15. By arranging the return water collection pipe 161, the inlet water collection pipe 162 and a plurality of groups of serpentine branches 163, the heat exchange medium is input from the inlet water collection pipe 162 to the serpentine branches 163, thereby cooling the water in the water tank 15, and then discharged from the return water collection pipe 161 after heat exchange, thereby ensuring the cooling effect on the high-temperature process gas.

[0042] like Figure 1 and Figure 2As shown, the tower body 1 and the water tank 15 are both provided with a liquid level meter 29, the water tank 15 is also provided with a water replenishment port 30, and the bottom of the water tank 15 is also provided with a thermometer 31 and a sewage outlet 32. By providing the liquid level meter 29, the liquid levels in the scattering chamber of the tower body 1 and the water tank 15 can be monitored respectively. If the liquid level in the scattering chamber is high, it is necessary to increase the overflow flow or increase the flow of the screw pump 42. If the liquid level in the scattering chamber is low, it is necessary to increase the flow of the water pump 17 or reduce the flow of the screw pump 42. If the liquid level in the water tank 15 is low, water can be replenished through the water replenishment port 30, or the flow of the screw pump 42 can be reduced; by providing the thermometer 31, the temperature of the circulating water in the water tank 15 can be detected to ensure that the cooling function of the water circulation system can operate efficiently and normally. If the temperature of the circulating water in the water tank 15 is high, the flow of the heat exchange medium is increased to speed up the circulation, or a large amount of cold water is directly added through the water replenishment port 30 for cooling, and the hotter circulating water is discharged through the sewage outlet 32.

[0043] During the high-temperature process gas treatment process, the high-temperature process gas enters the diversion chamber through the air inlet 12, and at the same time, the water pump 17 pumps the cold water in the water tank 15 to the liquid supply pipe 18, and then delivers it to the water distribution pipe 14 through the liquid supply pipe 18, and then the cold water is evenly sprayed in the diversion chamber through the sprinkler nozzle 21 to cool the high-temperature process gas and reduce dust. The mixed process gas and a part of the water mist enter the scattering chamber evenly and thoroughly through the diversion of the scattering bubbling tube 7, and the other part of the water mist polymerizes and carries part of the ash and oil components through the diversion of the scattering bubbling tube 7 to flow into the scattering chamber evenly and thoroughly to form a liquid phase. , and the process gas is still cooled during the flow; when the process gas passes through the bubble generation skirt 72, it will be broken into a large number of fine bubbles by the pores, thereby increasing the contact area with the liquid phase in the scattering chamber, further improving the heat exchange efficiency, ash removal rate and oil component recovery rate; the process gas in the liquid phase floats up and enters the central pipe 8, and spirally rises under the action of the first spiral blade 9, passes through the guidance of the top cover 2, and then spirally descends along the second spiral blade 10, so that the process gas is centrifuged during the spiral motion, and the oil component, oil-gas component, Water components, ash, carbon dioxide, hydrogen, nitrogen, etc. are distributed in order from the inside to the outside according to the size of inertia. Components with large inertia are on the outside, such as water mist and ash, which gather together to form large particle droplets and drip on the first spiral blade 9 and the second spiral blade 10. The droplets on the first spiral blade 9 flow directly into the liquid phase of the scattering chamber after converging, and the droplets on the second spiral blade 10 flow to the partition plate 5 after converging and flow into the liquid phase of the scattering chamber through the reflux pipe 22; components with small inertia are on the inside, such as carbon dioxide, hydrogen, nitrogen, etc., and spiral forward on the inside until they are discharged from the exhaust port. 11 is discharged from the tower body 1; the sprayed dirty oil floats on the surface of the liquid phase and is blocked by the oil baffle 27 to avoid entering the water tank 15, and is recovered into the container through the anti-connection overflow pipe 26; the middle liquid phase in the scattering chamber is the relatively clean circulating water after heating, and this part of the liquid phase overflows back into the water tank 15 through the overflow plate 28, and moves downward as the cold water at the bottom of the water tank 15 is pumped away, and is cooled by the cooling pipe 16 for circulating spraying; the ash is precipitated by gravity at the bottom of the tower body 1 to form a mud phase, and enters the screw pump 42 through the mud discharge pipe 41, and is continuously discharged online by the screw pump 42 to avoid the accumulation of the mud phase. The present invention can not only treat the ash in the process gas in a smaller space and reduce the temperature of the process gas, but also recover the valuable oil components in the process gas and the moisture of the process gas after bubbling, effectively improving the treatment effect of the high-temperature process gas.

[0044] The descriptions of the orientation or relative position relationship of the structure in the present invention, such as the orientation or relative position relationship indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A compact water-spraying bubbling tower for treating oily sludge, comprising a tower body (1) and a water tank (15), characterized in that: A mud discharge recoil device (4) is provided at the bottom of the tower body (1), a partition plate (5) and a mounting plate (6) are provided inside the tower body (1) from top to bottom, a plurality of groups of scattering bubbling tubes (7) are evenly provided at the bottom of the mounting plate (6), a central pipe (8) is vertically provided at the top of the mounting plate (6), the top end of the central pipe (8) is arranged above the partition plate (5), a first spiral blade (9) is provided in the central pipe (8), and a first spiral blade (9) is provided between the central pipe (8) above the partition plate (5) and the tower body (1). The tower body (1) has two spiral blades (10), an exhaust port (11) is provided on the tower body (1) above the partition plate (5), an air inlet (12) is provided on the tower body (1) between the partition plate (5) and the mounting plate (6), a water distribution pipe (14) is provided between the partition plate (5) and the mounting plate (6), the tower body (1) below the mounting plate (6) is connected to the top of a water tank (15), a cooling pipe (16) is provided at the bottom of the water tank (15), and the water tank (15) is connected to the water distribution pipe (14) via a water pump (17).

2. The compact water-spraying scattering bubbling tower for oily sludge treatment according to claim 1 is characterized in that: A plurality of groups of water distribution ports (19) are evenly arranged on the tower body (1) between the partition plate (5) and the mounting plate (6), a cover plate (20) is detachably arranged on the water distribution port (19), a water distribution pipe (14) is arranged on the cover plate (20), and a plurality of groups of watering nozzles (21) are evenly arranged at the bottom of the water distribution pipe (14).

3. The compact water-spraying scattering bubbling tower for oily sludge treatment according to claim 2 is characterized in that: A reflux pipe (22) is provided on the partition plate (5), and the bottom end of the reflux pipe (22) passes through the mounting plate (6) and is arranged below the scattering bubbling pipe (7).

4. The compact water-spraying scattering bubbling tower for oily sludge treatment according to claim 3 is characterized in that: The top of the first spiral blade (9) is detachably connected to the top of the central pipe (8), a support frame (24) is provided on the outer side of the second spiral blade (10), the bottom of the support frame (24) is arranged on the partition plate (5), and a gap is provided between the support frame (24) and the tower body (1).

5. The compact water-spraying scattering bubbling tower for oily sludge treatment according to claim 4 is characterized in that: The bottom of the tower body (1) is conical, and a mud discharge port (25) is provided at the center of the bottom of the tower body (1). The mud discharge recoil device (4) comprises a mud discharge pipe (41) and a screw pump (42). The mud discharge port (25) is connected to the input end of the screw pump (42) through the mud discharge pipe (41), a recoil port (43) is provided at one end of the mud discharge pipe (41) close to the screw pump (42), and a spare port (44) is provided at one end of the mud discharge pipe (41) close to the mud discharge port (25).

6. The compact water-spraying scattering bubbling tower for treating oily sludge according to any one of claims 1 to 5, characterized in that: The scattering bubbling tube (7) comprises a tube body (71) and a bubble generating skirt (72). The bubble generating skirt (72) is conical and arranged at the bottom of the tube body (71). The top of the tube body (71) is connected to the mounting plate (6) via a baffle (73).

7. The compact water-spraying scattering bubbling tower for oily sludge treatment according to claim 6 is characterized in that: An anti-connection overflow pipe (26) is provided on the tower body (1) below the mounting plate (6). The anti-connection overflow pipe (26) is U-shaped, and the connection between the anti-connection overflow pipe (26) and the tower body (1) is higher than the bubble generation skirt (72).

8. The compact water-spraying scattering bubbling tower for oily sludge treatment according to claim 7 is characterized in that: An oil baffle plate (27) and an overflow plate (28) are alternately arranged at the connection between the tower body (1) and the water tank (15); the oil baffle plate (27) is arranged at the top of the connection between the tower body (1) and the water tank (15); the overflow plate (28) is arranged at the bottom of the connection between the tower body (1) and the water tank (15); and a circulation channel is arranged between the oil baffle plate (27) and the overflow plate (28).

9. The compact water-spraying scattering bubbling tower for treating oily sludge according to claim 8, characterized in that: The cooling pipe (16) comprises a return water collecting pipe (161), an inlet water collecting pipe (162) and a plurality of groups of serpentine branch pipes (163). The plurality of groups of serpentine branch pipes (163) are evenly arranged inside the water tank (15). The top ends of the serpentine branch pipes (163) are connected to the return water collecting pipe (161), and the bottom ends of the serpentine branch pipes (163) are connected to the inlet water collecting pipe (162).

10. The compact water-spraying scattering bubbling tower for oily sludge treatment according to claim 9, characterized in that: The tower body (1) and the water tank (15) are both provided with a liquid level gauge (29), the water tank (15) is also provided with a water replenishment port (30), and the bottom of the water tank (15) is also provided with a thermometer (31) and a sewage outlet (32).

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