Petroleum coke calcination cooling flue gas treatment device with cleaning function

Abstract

The invention discloses a petroleum coke calcination cooling flue gas treatment device with a cleaning function, and particularly relates to the technical field of flue gas treatment, the petroleum coke calcination cooling flue gas treatment device comprises a tank body, a gas inlet pipe arranged on one side of the tank body, a slag discharge port formed in one side of the tank body, and a gas outlet pipe arranged on the upper part of the outer surface of the tank body, a primary treatment structure communicated with the gas inlet pipe and used for cooling flue gas is arranged at the lower part of the inner cavity of the tank body, and a secondary treatment structure communicated with the gas outlet pipe is arranged at the upper part of the inner cavity of the tank body. A closed and stable flue gas purification environment is provided through the tank body, the gas inlet pipe receives pollutant-containing flue gas obtained after petroleum coke calcination and cooling, the primary treatment structure realizes flue gas cooling and particle separation, the secondary treatment structure deeply purifies residual pollutants, the slag discharge port discharges impurities to prevent secondary pollution, and the gas outlet pipe discharges flue gas reaching the standard. The purification efficiency is greatly improved through stage treatment, emission of particulate matter and harmful flue gas is effectively reduced, and atmospheric pollution treatment is assisted to reach the standard.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flue gas treatment, in particular to a petroleum coke calcination cooling flue gas treatment device with cleaning function. BACKGROUND

[0002] The technical field of flue gas treatment includes principles and methods related to air pollutant control and key equipment. Its core content revolves around the removal of sulfur compounds, nitrogen oxides, mercury, fluorine and solid particles and other air pollutants in industrial flue gas, and overall covers desulfurization, denitrification, decarbonization, demercuration, defluorination and other branches. Through different process paths such as absorption, adsorption and catalysis, the separation of pollutants is realized, involving the design and application of various special equipment such as desulfurization tower, filter assembly, stirring device and discharge structure. It is widely used in industries that produce flue gas such as petrochemical, metallurgical and power industries, and forms corresponding treatment schemes for different flue gas compositions and emission scenarios. Among them, a petroleum coke calcination cooling flue gas treatment device with cleaning function refers to a flue gas treatment equipment applied to the petroleum coke calcination cooling link. The technical matters covered by this equipment include flue gas dispersion, contact grid filter plate, grid filter plate and equipment inner wall impurity cleaning, solid particle collection and discharge, filter screen dredging. Flue gas dispersion is achieved through a rectangular shell around the cooling shell, and the rectangular shell is lower on the side away from the inner wall of the cooling shell and has a through groove; impurity cleaning is completed by a drain pipe driven by a rotating rod, the drain pipe is located on the upper and lower sides of the grid filter plate and has a drain opening, and a water inlet pipe supplies water to the water storage cavity of the rotating rod; solid particle treatment is achieved by the circulating cavity of the rotating rod and the hollow stirring blade, the hollow stirring blade is connected to the circulating cavity and connected to the liquid inlet shell; filter screen dredging and particle discharge rely on the operation of a regular discharge mechanism, which contains a u-shaped pipe, a floating ring, a first sliding rod, a second sliding rod, a flow guide shell and a rotating ring, and the filter screen is arranged in the flow guide groove of the rotating rod.

[0003] The prior art achieves flue gas dispersion through a rectangular shell around the cooling shell and a through groove, which can easily lead to uneven distribution of flue gas, affecting the subsequent treatment effect. Impurity cleaning is completed by a drain pipe driven by a rotating rod, and the drain pipe is located on the upper and lower sides of the grid filter plate and operates with a drain opening, which is difficult to clean the impurities on the grid filter plate and the inner wall of the equipment. Filter screen dredging relies on a regular discharge mechanism, which can easily lead to a decrease in treatment efficiency during filter screen blockage. Solid particle treatment relies on the rotating rod circulating cavity and the hollow stirring blade, which lacks a deep separation design and has no treatment structure for soluble pollutants, leading to incomplete removal of pollutants and affecting the compliance rate of discharged flue gas, which is not conducive to air pollution control. SUMMARY

[0004] The main purpose of the present application is to provide a petroleum coke calcination cooling flue gas treatment device with cleaning function, which can effectively solve the problems involved in the background art.

[0005] To achieve the above object, the technical scheme adopted by the present application is: The petroleum coke calcination cooling flue gas treatment device with cleaning function, including the tank body, the air inlet pipe arranged on one side of the tank body, the residue discharge port arranged on one side of the tank body, the air outlet pipe arranged on the upper part of the outer surface of the tank body, the primary treatment structure for cooling flue gas is arranged in the lower part of the inner cavity of the tank body and communicated with the air inlet pipe, and the secondary treatment structure is arranged in the upper part of the inner cavity of the tank body and communicated with the air outlet pipe.

[0006] Preferably, the primary treatment structure is rotatably connected to the connecting pipe three at the lower end of the secondary treatment structure, a plurality of spraying assemblies are fixedly connected to the outer surface of the connecting pipe three in a ring shape, a plurality of active turbulence assemblies are arranged on the outer surface of the connecting pipe three in a ring shape, the residue discharge assembly is fixedly connected to the lower part of the outer surface of the connecting pipe three, and the isolation net is fixedly installed in the part of the inner cavity of the tank body below the residue discharge assembly.

[0007] Preferably, the primary treatment structure further comprises the water pump installed on the bottom wall of the inner cavity of the tank body, the output pipe of the water pump extends to the inner cavity of the connecting pipe three through the lower end of the isolation net and is communicated with the spraying assembly and the active turbulence assembly, the connecting pipe two communicated with the air inlet pipe is fixedly installed in the middle part of the inner cavity of the tank body, and a plurality of isolation nets communicated with the inner cavity of the tank body are arranged on the outer surface of the connecting pipe two in a ring shape.

[0008] Preferably, the active turbulence assembly comprises the water slide ring one communicated with the output pipe of the water pump and communicated with the inner cavity of the connecting pipe three through the arc-shaped groove, the connecting pipe one communicated with the water slide ring one is fixedly connected to the outer surface of the connecting pipe three, the Z-shaped plate is rotatably connected to the outer surface of the connecting pipe one through the bearing, the water slide ring two communicated with the inner cavity of the Z-shaped plate is fixedly installed on the part of the outer surface of the connecting pipe one inside the Z-shaped plate, a plurality of injection ports are fixedly connected to one side of the vertical part of the Z-shaped plate near the same side of the horizontal part, and the flow distribution pipe communicated with the injection ports and the water slide ring two is arranged in the inner cavity of the Z-shaped plate, so that the Z-shaped plate rotates around the axis of the connecting pipe one when the water flows into each injection port through the connecting pipe one, the water slide ring two and the flow distribution pipe and is sprayed out through the injection port.

[0009] Preferably, the spraying assembly comprises the connecting ring rotatably installed on the upper part of the outer surface of the connecting pipe three, a plurality of water uniformizing pipes communicated with the inner surface of the connecting ring are fixedly connected to the outer surface of the connecting ring in a ring shape, the connecting groove communicated with the inner cavity of the connecting pipe three is arranged on the outer surface of the connecting pipe three, the output pipe of the water pump is communicated with the connecting groove and sends the water flow into each water uniformizing pipe through the connecting ring, and the inclined spray head is arranged at the lower end of each water uniformizing pipe, so that the connecting ring rotates on the outer surface of the connecting pipe three when the water flow is sprayed out through the spray head on the lower side of the water uniformizing pipe.

[0010] Preferably, the residue discharging assembly comprises a plurality of fan plates annularly arranged on the lower part of the outer surface of the third connecting pipe, the same side of the plurality of fan plates in the rotation direction is provided with a scraper, and the outer arc surface of the plurality of fan plates is provided with a residue discharging hole communicated with the inner cavity, and the inclined surface of the scraper is in close contact with the upper end of the isolation net, and when the third connecting pipe rotates, the fan plate rotates with the third connecting pipe and scrapes the upper end of the isolation net.

[0011] Preferably, the inner cavity of the tank is provided with an inclined chute at the lower part communicated with the residue discharging port for receiving the separated residue from the residue discharging hole, and when the fan plate rotates with the third connecting pipe, the residue in the fan plate moves to the direction of the inclined chute under the centrifugal force and finally enters the inclined chute through the residue discharging hole.

[0012] Preferably, the secondary treatment structure comprises a mist catching net arranged in the middle part of the inner cavity of the tank, a plurality of flow guide cones are fixedly connected to the lower end of the mist catching net in array, and a plurality of bubble precipitation assemblies are fixedly arranged on the upper part of the inner cavity of the tank in array, and the bubble precipitation assembly located on the upper part is communicated with the gas outlet pipe for discharging the treated flue gas.

[0013] Preferably, the bubble precipitation assembly comprises a conical plate and a flow guide plate arranged on the upper part of the inner surface of the tank, water is filled between the conical plate and the flow guide plate, a circulating pipe is fixedly arranged on the upper end of the conical plate, a gas collecting funnel is fixedly arranged on the upper part of the inner surface of the conical plate, a plurality of gas supply pipes communicated with the circulating pipe are fixedly connected to the output side of the gas collecting funnel in annular arrangement, a plurality of exhaust holes are arranged on the outer surface of the circulating pipe and the outer surface of the gas supply pipe in annular arrangement, and a one-way valve is arranged on the inner surface of each exhaust hole.

[0014] Compared with the prior art, the present application has the following advantages: The present application provides a closed and stable flue gas purification environment through the tank, the inlet pipe receives the flue gas containing pollutants after the petroleum coke is calcined and cooled, the primary treatment structure realizes flue gas cooling and particle separation, the secondary treatment structure deeply purifies the residual pollutants, the residue discharging port discharges impurities to prevent secondary pollution, the gas outlet pipe discharges standard flue gas, and the staged treatment greatly improves the purification efficiency, effectively reduces the emission of particulate matter and harmful flue gas, and helps to achieve the standard of air pollution control. The present application synchronously drives each component to operate through the cooperation of the third connecting pipe and the spraying assembly, the active flow disturbing assembly and the residue discharging assembly, and realizes collaborative treatment, the water pump provides continuous water flow power for spraying and flow disturbing, the isolation net in front of the outer surface of the second connecting pipe filters larger particles in the flue gas, the Z-shaped plate of the active flow disturbing assembly rotates to break the laminar flow of the flue gas and improve the fine particle capture rate, the rotary spraying of the spraying assembly expands the water smoke contact range, the scraper of the residue discharging assembly cleans the isolation net and cooperates with the inclined chute to discharge impurities, finally, the flue gas is efficiently cooled, the particle impurities are completely separated, the blockage and secondary pollution are prevented, the pollutant separation efficiency is improved, and the atmospheric particulate matter emission is reduced. The present application guides the flue gas to uniformly flow through the mist catching net and fully intercepts the water mist by the cooperation of the guide cone and the mist catching net in the secondary processing structure, reduces the moisture into the subsequent link to avoid affecting the absorption of soluble pollutants, and cooperates the gas collecting funnel, air supply pipe, circulating pipe and exhaust hole in the bubble precipitation assembly to make the flue gas form small bubbles to fully contact in the water between the conical plate and the guide plate, efficiently absorbs trace soluble pollutants such as sulfur dioxide, the one-way valve prevents the water from flowing back to ensure the stability of the system, and finally discharges qualified flue gas through the cooperation of the upper bubble precipitation assembly and the air outlet pipe, greatly improves the removal efficiency of trace pollutants, ensures that the flue gas meets the emission standard, and effectively reduces air pollution. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the sectional structure of the tank body of the present application; Figure 3 It is a schematic diagram of the structure of the primary processing structure of the present application; Figure 4 It is a schematic diagram of the structure of the active flow disturbance assembly of the present application; Figure 5 It is a schematic diagram of the sectional structure of the active flow disturbance assembly of the present application; Figure 6 It is a schematic diagram of the Figure 4 It is an enlarged schematic diagram of the local structure at A in the present application; Figure 7 It is a schematic diagram of the Figure 4 It is an enlarged schematic diagram of the local structure at B in the present application; Figure 8 It is a schematic diagram of the structure of the secondary processing structure of the present application; Figure 9 It is a schematic diagram of the structure of the bubble precipitation assembly of the present application; Figure 10 It is a schematic diagram of the sectional structure of the bubble precipitation assembly of the present application.

[0016] In the figure: 1, tank body; 2, slag discharge port; 21, chute; 3, air inlet pipe; 4, air outlet pipe; 5, secondary processing structure; 51, bubble precipitation assembly; 511, conical plate; 512, circulating pipe; 513, guide plate; 514, gas collecting funnel; 515, air supply pipe; 516, exhaust hole; 52, mist catching net; 53, guide cone; 6, primary processing structure; 61, spraying assembly; 611, connecting ring; 612, water distribution pipe; 613, connecting groove; 62, active turbulence assembly; 621, water slip ring one; 622, Z-shaped plate; 623, injection port; 624, connecting pipe one; 625, water slip ring two; 626, shunt pipe; 63, slag discharge assembly; 631, fan plate; 632, scraper; 633, slag discharge hole; 64, connecting pipe two; 65, isolation net; 66, water pump; 67, connecting pipe three. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in conjunction with specific embodiments.

[0018] Embodiment one, a petroleum coke calcination and cooling flue gas treatment device with cleaning function, referring to Figure 1 and Figure 2 , including a tank body 1, an air inlet pipe 3 arranged on one side of the tank body 1, a slag discharge port 2 opened on one side of the tank body 1, an air outlet pipe 4 arranged on the upper part of the outer surface of the tank body 1, a primary processing structure 6 for cooling flue gas arranged in the lower part of the inner cavity of the tank body 1 and communicated with the air inlet pipe 3, and a secondary processing structure 5 arranged in the upper part of the inner cavity of the tank body 1 and communicated with the air outlet pipe 4. The tank body 1 provides a stable environment for flue gas purification as a closed processing cavity. The air inlet pipe 3 is specially used to receive flue gas containing dust and soluble pollutants after petroleum coke calcination and cooling. The slag discharge port 2 is used to discharge separated solid impurities and impurity-containing liquid drops to prevent secondary pollution. The air outlet pipe 4 is responsible for discharging standard flue gas. The primary processing structure 6 focuses on flue gas cooling and particle separation. The secondary processing structure 5 focuses on deep purification of residual pollutants. The staged processing mode can accurately respond to different pollutant characteristics, greatly improve the purification efficiency, effectively reduce the emission of particulate matter and SO2 and other pollutants, and help to achieve the standard of air pollution control.

[0019] In the specific operation process of the present application, the tank body 1 provides a closed and stable flue gas purification environment. The air inlet pipe 3 receives flue gas containing pollutants after petroleum coke calcination and cooling. The primary processing structure 6 realizes flue gas cooling and particle separation. The secondary processing structure 5 deeply purifies residual pollutants. The slag discharge port 2 discharges impurities to prevent secondary pollution. The air outlet pipe 4 discharges standard flue gas. The staged processing greatly improves the purification efficiency, effectively reduces the emission of particulate matter and harmful flue gas, and helps to achieve the standard of air pollution control.

[0020] In the second embodiment, the connection pipe three 67 cooperates with the spraying assembly 61, the active spoiler assembly 62 and the slag discharge assembly 63 to drive each assembly to run synchronously to achieve collaborative processing. The water pump 66 provides continuous water flow power for spraying and turbulence. The isolation net 65 outside the connection pipe two 64 filters large particles in the flue gas. The Z-shaped plate 622 of the active spoiler assembly 62 rotates to break the laminar flow of the flue gas to improve the fine particle capture rate. The rotating spraying of the spraying assembly 61 expands the water smoke contact range. The scraper 632 of the slag discharge assembly 63 cleans the isolation net 65 and cooperates with the chute 21 to discharge impurities. Finally, the flue gas is efficiently cooled, the particle impurities are completely separated, the blockage and secondary pollution are prevented, the pollutant separation efficiency is improved, and the atmospheric particulate matter emission is reduced.

[0021] Further, referring to Figure 3 The connection pipe three 67 is rotatably connected to the lower end of the secondary processing structure 5. The connection pipe three 67 has a plurality of spraying assemblies 61 fixedly connected to the outer surface in a ring shape. The connection pipe three 67 has a plurality of active spoiler assemblies 62 arranged in a ring shape on the outer surface. The connection pipe three 67 has a slag discharge assembly 63 fixedly connected to the lower part of the outer surface. The isolation net 65 is fixedly installed in the part of the inner cavity of the tank body 1 below the slag discharge assembly 63. The connection pipe three 67 serves as the core rotating carrier of the primary processing structure 6 and can synchronously drive the spraying assembly 61, the active spoiler assembly 62 and the slag discharge assembly 63 to run to achieve collaborative processing. The isolation net 65 can pre-block large particle impurities in the flue gas to avoid blockage in the subsequent fine processing link and lay a foundation for efficient capture of fine particles, thereby reducing the pollution treatment load from the source and improving the overall purification effect.

[0022] Further, referring to Figure 3 The primary processing structure 6 further includes a water pump 66 installed in the bottom wall of the inner cavity of the tank body 1. The output pipe of the water pump 66 extends through the lower end of the isolation net 65 to the inner cavity of the connection pipe three 67 and communicates with the spraying assembly 61 and the active spoiler assembly 62. The connection pipe two 64 is fixedly installed in the middle part of the inner cavity of the tank body 1 and communicates with the air inlet pipe 3. A plurality of isolation nets 65 are fixedly installed on the outer surface of the connection pipe two 64 in a ring shape and communicate with the inner cavity of the tank body 1. The water pump 66 provides continuous water flow power for spraying and turbulence to achieve water recycling. The connection pipe two 64 guides the flue gas from the air inlet pipe 3 into the primary processing area. The isolation net 65 on the outer surface of the connection pipe two 64 can preliminarily filter the flue gas to intercept most dust particles with large particle sizes, thereby reducing the capture pressure of the subsequent assembly on the fine particles. This pre-filtering design can reduce equipment wear and tear and improve the pollutant separation efficiency, thereby helping to reduce particulate matter emissions.

[0023] Further, referring to Figure 4 and Figure 5The active spoiler assembly 62 comprises a water slide ring one 621 in communication with the water pump 66 output pipe and the inner cavity of the connecting pipe three 67 through an arc-shaped slot, the outer surface of the connecting pipe three 67 is fixedly connected with a connecting pipe one 624 in communication with the water slide ring one 621, the outer surface of the connecting pipe one 624 is rotatably connected with a Z-shaped plate 622 through a bearing, the outer surface of the connecting pipe one 624 on the inner side of the Z-shaped plate 622 is fixedly installed with a water slide ring two 625 in communication with the inner cavity of the Z-shaped plate 622, the inner cavity of the Z-shaped plate 622 is arrayed and fixedly connected with a plurality of spray ports 623 on the side close to the same side of the horizontal part at the left and right ends of the vertical part, and the inner cavity of the Z-shaped plate 622 is provided with a shunt pipe 626 in communication with the plurality of spray ports 623 and the water slide ring two 625. When the water flow enters each spray port 623 through the connecting pipe one 624, the water slide ring two 625 and the shunt pipe 626 and is sprayed out through the spray port 623, the Z-shaped plate 622 rotates around the axis of the connecting pipe one 624, the water slide ring one 621 and the water slide ring two 625 ensure stable water supply without affecting the rotation of the component, the shunt pipe 626 realizes uniform distribution of the water flow to each spray port 623, the sprayed water flow drives the Z-shaped plate 622 to rotate to form a strong disturbance, which can break the laminar state of the smoke flow, greatly improve the collision and fusion probability of the water mist and the fine particles, significantly improve the capture efficiency of PM2.5 and other fine particles, and effectively reduce the emission of fine particle pollutants.

[0024] Further, referring to Figure 6 The spraying assembly 61 comprises a connecting ring 611 rotatably installed on the outer surface of the connecting pipe three 67, the outer surface of the connecting ring 611 is fixedly connected with a plurality of water uniformizing pipes 612 in communication with the inner surface thereof, the outer surface of the connecting pipe three 67 is provided with a connecting groove 613 in communication with the inner cavity thereof, the output pipe of the water pump 66 is in communication with the connecting groove 613 and sends the water flow into each water uniformizing pipe 612 through the connecting ring 611, and the lower end of each water uniformizing pipe 612 is provided with an inclined spray head. When the water flow is sprayed out through the spray head on the lower side of the water uniformizing pipe 612, it will drive the connecting ring 611 to rotate on the outer surface of the connecting pipe three 67. The connecting groove 613 realizes stable transportation of the water flow from the connecting pipe three 67 to the connecting ring 611, the water uniformizing pipe 612 uniformly distributes the water flow to each inclined spray head, the reaction force generated by the water flow sprayed out of the spray head drives the connecting ring 611 to rotate, forming a large-scale rotary spraying effect, which not only quickly reduces the temperature of the high-temperature flue gas to create conditions for subsequent treatment, but also enables the water mist to fully wrap the fine particles to form impurity-containing droplets, greatly improving the capture amount of particulate matter and reducing the source of atmospheric particulate matter pollution.

[0025] Further, referring to Figure 7The slag discharge assembly 63 comprises a plurality of fan plates 631 annularly distributed and installed on the lower part of the outer surface of the connecting pipe three 67, the same side of the plurality of fan plates 631 in the same rotation direction is provided with a scraper 632, the outer arc surface of the plurality of fan plates 631 is provided with a slag discharge hole 633 in communication with the inner cavity thereof, and the inclined surface of the scraper 632 is in close contact with the upper end of the isolation net 65. When the connecting pipe three 67 rotates, the fan plate 631 rotates with the connecting pipe three 67 and scrapes the upper end of the isolation net 65. The connecting pipe three 67 drives the fan plate 631 to rotate synchronously. The scraper 632 can timely remove the large particle impurities accumulated on the surface of the isolation net 65, avoid the filter screen from being blocked to affect the flue gas flow and the filtering effect, and simultaneously scrape off the attached liquid drops containing small particles to ensure that all captured particles can enter the inside of the fan plate 631. The real-time cleaning design guarantees the continuous and efficient primary treatment and prevents the impurities from entering the flue gas again to cause pollution rebound.

[0026] Further, referring to Figure 2 A chute 21 is provided in the lower part of the inner cavity of the tank body 1 and is in communication with the slag discharge port 2 for receiving the separated residues from the slag discharge hole 633. When the fan plate 631 rotates with the connecting pipe three 67, the residues in the fan plate 631 move to the direction of the chute 21 under the centrifugal action and finally enter the chute 21 through the slag discharge hole 633. The centrifugal force promotes the impurities and liquid drops containing impurities in the fan plate 631 to move outward, the slag discharge hole 633 provides an outlet channel for them, and the chute 21 guides the pollutants to flow to the slag discharge port 2 quickly by virtue of the inclination angle, realizes the timely collection and discharge of the pollutants, avoids the accumulation and fermentation of the pollutants in the tank or the secondary diffusion of the pollutants with the gas flow, ensures that the separated pollutants in the primary treatment completely separate from the flue gas system, and improves the thoroughness of pollution removal.

[0027] In example three, the guide cone 53 in the secondary treatment structure 5 cooperates with the mist catching net 52 to guide the flue gas to uniformly flow through the mist catching net 52 and comprehensively intercept the water mist, reduce the water entering the subsequent link to avoid affecting the absorption of soluble pollutants. The gas collecting funnel 514, the air supply pipe 515, the circulating pipe 512 and the air outlet hole 516 in the bubble precipitation assembly 51 are cooperated to make the flue gas form small bubbles to fully contact with water between the conical plate 511 and the guide plate 513, efficiently absorb SO2 and other trace soluble pollutants, and prevent water from flowing back to ensure the stability of the system. Finally, the qualified flue gas is discharged through the cooperation of the upper bubble precipitation assembly 51 and the air outlet pipe 4, the removal efficiency of trace pollutants is greatly improved, the flue gas meets the emission standard, and the atmospheric pollution is effectively reduced.

[0028] Further, referring to Figure 8The secondary treatment structure 5 comprises a mist catching net 52 installed in the middle of the inner cavity of the tank body 1, a plurality of flow guide cones 53 fixedly connected in array at the lower end of the mist catching net 52, and a plurality of bubble precipitation assemblies 51 fixedly installed in array at the upper part of the inner cavity of the tank body 1, the bubble precipitation assembly 51 at the upper part being communicated with the gas outlet pipe 4 for discharging the treated flue gas, the flow guide cones 53 can guide the flue gas to uniformly flow through the mist catching net 52, avoiding that the local flue gas flow is too fast to cause insufficient filtration, the mist catching net 52 can comprehensively intercept the water mist carried in the flue gas, reducing the moisture entering the subsequent link to affect the absorption effect of the soluble pollutants, and the bubble precipitation assembly 51 can deeply purify the flue gas, the design of first mist removal and then deep treatment can greatly improve the removal efficiency of the secondary treatment on the trace pollutants, and ensure the cleanliness of the finally discharged flue gas.

[0029] Further, referring to Figure 9 and Figure 10 The bubble precipitation assembly 51 comprises a conical plate 511 and a flow guide plate 513 installed on the upper part of the inner surface of the tank body 1, water is filled between the conical plate 511 and the flow guide plate 513, a circulating pipe 512 is fixedly installed at the upper end of the conical plate 511, a gas collecting funnel 514 is fixedly installed on the inner surface of the conical plate 511, a plurality of gas supply pipes 515 communicated with the circulating pipe 512 are fixedly connected in annular distribution at the output side of the gas collecting funnel 514, a plurality of exhaust holes 516 are formed on the outer surface of the circulating pipe 512 and the outer surface of the gas supply pipes 515, unidirectional valves are arranged on the inner surfaces of the exhaust holes 516, the gas collecting funnel 514 can collect the flue gas, the gas supply pipes 515 can uniformly deliver the flue gas to the circulating pipe 512, the exhaust holes 516 can make the flue gas enter the water in the form of small bubbles, increase the gas-liquid contact area, and make the residual SO2 and other trace soluble pollutants in the flue gas be fully absorbed by the water, the unidirectional valves can effectively prevent the water from flowing back to ensure the stable operation of the system, and the structure can further reduce the content of the soluble pollutants in the flue gas, make the discharged flue gas meet the more stringent environmental protection standards, and reduce the influence on the atmospheric environment.

[0030] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A petroleum coke calcination cooling flue gas treatment device with cleaning function, comprising a tank (1), an air inlet pipe (3) disposed on one side of the tank (1), a slag discharge port (2) opened on one side of the tank (1), and an air outlet pipe (4) disposed on the upper part of the outer surface of the tank (1), characterized in that: The lower part of the inner cavity of the tank body (1) is provided with a primary treatment structure (6) for cooling flue gas, which is communicated with the air inlet pipe (3), and the upper part of the inner cavity of the tank body (1) is provided with a secondary treatment structure (5) communicated with the air outlet pipe (4).

2. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 1, characterized in that: The primary treatment structure (6) is rotatably connected to the connecting pipe three (67) at the lower end of the secondary treatment structure (5), a plurality of spray assemblies (61) are fixedly connected to the outer surface of the connecting pipe three (67) in a ring shape, a plurality of active spoiler assemblies (62) are arranged on the outer surface of the connecting pipe three (67) in a ring shape, and a slag discharge assembly (63) is fixedly connected to the lower part of the outer surface of the connecting pipe three (67), and the part of the inner cavity of the tank body (1) below the lower end of the slag discharge assembly (63) is fixedly installed with a isolation net (65).

3. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 2, characterized in that: The primary treatment structure (6) further comprises a water pump (66) installed on the bottom wall of the inner cavity of the tank body (1), the output pipe of the water pump (66) extends through the lower end of the isolation net (65) to the inner cavity of the connecting pipe three (67) and is communicated with the spray assembly (61) and the active spoiler assembly (62), a connecting pipe two (64) communicated with the air inlet pipe (3) is fixedly installed in the middle part of the inner cavity of the tank body (1), and a plurality of isolation nets (65) communicated with the inner cavity of the tank body (1) are arranged on the outer surface of the connecting pipe two (64) in a ring shape.

4. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 3, characterized in that: The active spoiler assembly (62) comprises a water sliding ring one (621) communicated with the output pipe of the water pump (66) and communicated with the inner cavity of the connecting pipe three (67) through an arc-shaped groove, a connecting pipe one (624) fixedly connected with the water sliding ring one (621) is fixedly connected to the outer surface of the connecting pipe three (67), a Z-shaped plate (622) is rotatably connected to the outer surface of the connecting pipe one (624) through a bearing, a water sliding ring two (625) communicated with the inner cavity of the Z-shaped plate (622) is fixedly installed on the part of the outer surface of the connecting pipe one (624) inside the Z-shaped plate (622), a plurality of injection ports (623) are arrayed and fixedly connected on one side of the vertical part of the Z-shaped plate (622) close to the same side of the horizontal part, a shunt pipe (626) is arranged in the inner cavity of the Z-shaped plate (622) and communicated with the plurality of injection ports (623) and the water sliding ring two (625), and when water flows through the connecting pipe one (624), the water sliding ring two (625) and the shunt pipe (626) into each injection port (623) and is sprayed out through the injection port (623), the Z-shaped plate (622) rotates around the axis of the connecting pipe one (624).

5. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 3, characterized in that: The spraying assembly (61) comprises a connecting ring (611) rotatably mounted on the outer surface of the connecting pipe three (67), a plurality of water uniformizing pipes (612) are fixedly connected to the inner surface of the connecting ring (611) in a ring shape, a connecting groove (613) is formed in the outer surface of the connecting pipe three (67) and communicates with the inner cavity of the connecting pipe three (67), the output pipe of the water pump (66) communicates with the connecting groove (613) and sends water flow into each water uniformizing pipe (612) through the connecting ring (611), and the lower end of each water uniformizing pipe (612) is provided with an inclined nozzle.

6. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 2, characterized in that: The residue discharging assembly (63) comprises a plurality of fan plates (631) which are arranged on the outer surface of the connecting pipe three (67) in a ring shape, a scraper (632) is formed in one side of each fan plate (631) and has the same rotating direction, a residue discharging hole (633) is formed in the outer arc surface of each fan plate (631) and communicates with the inner cavity of the fan plate (631), and the inclined surface of the scraper (632) is in close contact with the upper end of the isolation net (65).

7. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 6, characterized in that: The inner cavity of the tank body (1) is provided with an inclined chute (21) which communicates with the residue discharging port (2) and is used for receiving the separated residues from the residue discharging hole (633), when the fan plate (631) rotates with the connecting pipe three (67), the residues in the fan plate (631) move to the direction of the inclined chute (21) under the centrifugal force and finally enter the inclined chute (21) through the residue discharging hole (633).

8. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 1, characterized in that: The secondary treatment structure (5) comprises a mist catching net (52) which is arranged in the middle part of the inner cavity of the tank body (1), a plurality of flow guide cones (53) are fixedly connected to the lower end of the mist catching net (52) in an array, and a plurality of bubble precipitation assemblies (51) are fixedly arranged on the upper part of the inner cavity of the tank body (1) in an array, the bubble precipitation assembly (51) located on the upper part communicates with the air outlet pipe (4) and is used for discharging the treated flue gas.

9. The petroleum coke calcination cooling flue gas treatment device with cleaning function according to claim 8, characterized in that: The bubble precipitation assembly (51) comprises a conical plate (511) and a flow guide plate (513) which are arranged on the upper part of the inner surface of the tank body (1), water is filled between the conical plate (511) and the flow guide plate (513), a circulating pipe (512) is fixedly arranged on the upper end of the conical plate (511), a gas collecting funnel (514) is fixedly arranged on the upper part of the inner surface of the conical plate (511), a plurality of air supply pipes (515) which communicate with the circulating pipe (512) are fixedly connected to the output side of the gas collecting funnel (514) in a ring shape, a plurality of air discharge holes (516) are formed in the outer surface of the circulating pipe (512) and the outer surface of the air supply pipe (515) on the upper part, and a one-way valve is arranged on the inner surface of each air discharge hole (516).

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