An efficient calcination furnace and method for petroleum coke
By designing a petroleum coke efficient calciner that includes curved rods, rebound components, vibration components, rebound components, elastic gas pipes and filter components, the uneven distribution of materials caused by sticking petroleum coke is solved, and the calcination effect and product quality are improved.
Patent Information
- Application Number
- CN202510422058.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2045-04-07
AI Technical Summary
The existing high-efficiency calciner of petroleum coke is difficult to effectively treat petroleum cokes that are stuck during the transmission process during the pretreatment stage, resulting in uneven distribution of materials in the calcination stage, affecting heat transfer efficiency and product quality.
A petroleum coke high-efficiency calciner including a pretreatment mechanism, a separation mechanism and a spray mechanism is designed. The pretreatment mechanism separates the adhesion petroleum coke through the arc-surface rod, rebound assembly and vibration assembly. The spraying mechanism sprays protective liquid through the rebound assembly, elastic trachea and filter assembly to prevent the petroleum coke from being stuck again, and pressurized treatment of the petroleum coke through the arc-surface trachea and hollow block.
It effectively solves the problem of uneven distribution of materials caused by sticking to petroleum coke, improves the calcination effect and product quality, ensures the stability of heat transfer efficiency, and provides strong guarantees for the smooth progress of the subsequent calcination stage.
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Figure CN119934828B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of calcining furnaces, and particularly relates to a high-efficiency petroleum coke calcining furnace and method. Background Art
[0002] A high-efficiency petroleum coke calcining furnace is a device used to heat petroleum coke to a high temperature to remove its volatile components and improve its chemical stability and calorific value. Through efficient combustion technology, this furnace can complete the calcining process in a relatively short time, saving energy and reducing emissions. Generally, advanced heat exchange technology and control systems are adopted to ensure uniform temperature inside the furnace, high thermal efficiency, and meet the quality requirements in petroleum coke production. Such furnaces are widely used in industries such as bauxite, steel, and chemical engineering.
[0003] Existing high-efficiency petroleum coke calcining furnaces are generally divided into a pretreatment stage and a calcining stage. In the pretreatment stage, special devices are used to screen and remove impurities from petroleum coke to remove impurities and prepare for subsequent calcining. However, in the pretreatment stage, it is difficult to effectively handle the agglomerated petroleum coke caused by collisions, the viscous components of petroleum coke itself, etc. during the transportation process;
[0004] The agglomerated petroleum coke will cause uneven distribution in the subsequent calcining stage, affecting the heat transfer efficiency, making some petroleum coke unable to be fully heated, and then resulting in uneven calcination degree and uneven product quality. Moreover, during the calcining process, due to the lack of a mechanism to prevent the re-agglomeration of petroleum coke, the re-agglomerated petroleum coke will hinder the smooth escape of volatile components, not only prolonging the calcining time and reducing production efficiency, but also possibly affecting the chemical stability and calorific value of the product due to local overheating or overburning, and unable to stably meet the strict quality standards in industrial production. Summary of the Invention
[0005] Aiming at the above-mentioned shortcomings of the existing technology, the present invention provides a high-efficiency petroleum coke calcining furnace and method, which can effectively solve the problem that the agglomerated petroleum coke in the existing technology will cause uneven distribution in the subsequent calcining stage and affect the heat transfer efficiency.
[0006] To achieve the above objectives, the present invention is realized through the following technical solutions:
[0007] The present invention provides a high-efficiency petroleum coke calcining furnace, including:
[0008] A calcining furnace;
[0009] A pretreatment mechanism, the pretreatment mechanism includes a housing fixedly connected to the upper end face of the calcining furnace, and a heat insulation frame is fixedly connected to a lower position inside the housing;
[0010] Separation mechanism, the separation mechanism includes an arc-shaped rod slidably connected to the inner top of the outer shell, rebound components are arranged on both sides of the bottom of the arc-shaped rod in the length direction, vibration components are inclinedly arranged on both sides of the arc-shaped rod in the length direction, and a plurality of recoil components are arranged at the bottom of the arc-shaped rod and located where the rebound components are provided;
[0011] Spraying mechanism, the spraying mechanism includes an arc-shaped air pipe fixedly connected to the center position of the inner top of the heat insulation frame, a hollow block is fixedly communicated with the bottom of the arc-shaped air pipe, a plurality of rebound components are linearly arranged between both sides of the arc-shaped air pipe and the inner side walls of both sides of the heat insulation frame, at least one elastic air pipe is arranged at the bottom of each of the rebound components, and a plurality of positioning pipes and filtering components are arranged in a rectangular array on both sides of the hollow block.
[0012] Preferably, the gas output end of the calciner is fixedly communicated with an exhaust pipe, and the solid output end of the calciner is fixedly communicated with a discharging pipe;
[0013] A controller is installed on the side of the outer shell, a feed pipe is fixedly communicated with the upper end surface of the outer shell, a first solenoid valve is installed on the pipe body of the feed pipe, and the first solenoid valve is electrically connected to the controller. At least one heater is fixedly connected to the inner wall of the heat insulation frame, and the heater is electrically connected to the controller. A hollow funnel is fixedly connected to the inner bottom of the heat insulation frame. A plurality of air holes are formed in the inner inclined surfaces around the hollow funnel. A communicating pipe is fixedly communicated with the top of the hollow funnel. One side of the hollow block away from the arc-shaped air pipe is fixedly communicated with the communicating pipe. A second solenoid valve is fixedly connected to the nozzle of the hollow funnel, and the second solenoid valve is electrically connected to the controller.
[0014] A method for an efficient calciner of petroleum coke, the method includes: separation of adhered petroleum coke, anti-adhesion of petroleum coke, and pressurization and pressure release of petroleum coke, specifically:
[0015] Separation of adhered petroleum coke: First, the petroleum coke that has adhered and entered the outer shell through the feed pipe is divided into two parts under the action of the arc-shaped rod, so that the adhered petroleum coke contacts the vibration components on both sides. Since the adhered petroleum coke enters the outer shell in a free-fall state, when the adhered petroleum coke contacts the arc-shaped rod and the vibration components, it will impact the arc-shaped rod and the vibration components, thereby generating a downward pressure. As the arc-shaped rod and the vibration components are pressed down, it will squeeze the rebound components. Since the impact caused by the adhered petroleum coke is intermittent, when the adhered petroleum coke does not impact the arc-shaped rod and the vibration components, the rebound components will make the arc-shaped rod and the vibration components return to their initial positions. This process is repeated, and then the vibration components vibrate. The vibrating vibration components achieve the separation effect on the adhered petroleum coke;
[0016] Anti-adhesion of petroleum coke: The liquid is received through the elastic air pipe and discharged through the elastic airbag to spray the liquid on the separated petroleum coke, and the petroleum coke and the liquid are fully mixed through the elastic component;
[0017] Pressurization and decompression of petroleum coke: air containing super-concentrated oxygen is received through the curved air pipe, and the air containing super-concentrated oxygen is continuously discharged into the shell through the hollow block, positioning tube and filter assembly, thereby increasing the air pressure inside the shell, allowing the oxygen in the air to more fully contact the petroleum coke, accelerating the oxidation reaction in the subsequent calcination process. As the air pressure inside the shell reaches the specified value, the hollow block and the curved air pipe receive suction, thereby releasing the air pressure inside the shell, restoring the air pressure inside the shell to normal, and entering the calcining furnace for calcination.
[0018] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:
[0019] 1. Through the arc rod, rebound component, vibration component and recoil component in the separation mechanism, the petroleum coke that is stuck can be separated without secondary damage, so as to avoid the sticking petroleum coke affecting the calcination effect in the subsequent calcination stage. Among them, the arc rod and the vibration component use the collision force when the petroleum coke falls. The collision force of the petroleum coke falling compresses the rebound component. Because the collision force is discontinuous, the rebound component rebounds when the force disappears, driving the arc rod and the vibration component to restore the initial state, so that the vibration component vibrates, and the sticking petroleum coke is separated without causing secondary damage, avoiding uneven distribution of materials in the furnace due to adhesion, ensuring stable heat transfer efficiency, making the petroleum coke evenly heated, improving the calcination effect, ensuring stable product quality, and providing strong guarantee for the smooth progress of the subsequent calcination stage.
[0020] 2. Through the rebound component, elastic air pipe, elastic component and filter component in the spraying mechanism, the separated petroleum coke can be sprayed with protective liquid to avoid the petroleum coke from sticking again when it enters the subsequent calcination stage. Moreover, after spraying the protective liquid, the air containing super-concentrated oxygen can be transported into the outer shell to achieve pressurized treatment of the petroleum coke. The elastic air pipe cooperates with the elastic air bag to spray the protective liquid onto the surface of the petroleum coke, and the elastic air pipe is made to reciprocate up and down, thereby avoiding the petroleum coke from agglomerating around the elastic air bag and affecting the spraying effect of the elastic air bag. When the hollow block is discharged from the filter component, the air is dispersed and discharged, and the air is absorbed in the hollow block to avoid the absorption of fine petroleum coke particles, thereby promoting the subsequent calcination reaction of the petroleum coke to be more sufficient and efficient.
[0021] 3. Through the compressed air tank and the suction and exhaust fan in the air and liquid supply mechanism, air containing ultra-high concentration of oxygen is transported into the hollow block by means of the arc-shaped air pipe. Among them, the suction and exhaust fan is used to suck in outside air, and the compressed air tank stores compressed oxygen, which is used to transport a certain amount of oxygen while the suction and exhaust fan transports air, so as to increase the oxygen content in the air. When the air pressure of the air transported by the suction and exhaust fan and the compressed air tank into the housing reaches the specified pressure, the suction and exhaust fan starts to suck in the air inside the housing. At this time, the compressed air tank stops transporting oxygen until the air pressure inside the housing reaches the standard pressure. The liquid storage tank is used to transport the protective liquid into the elastic airbag through the elastic air pipe, which can spray the protective liquid on the petroleum coke in time to prevent it from sticking again during the processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0023] Figure 1 Structural schematic diagram of the whole of the present invention;
[0024] Figure 2 Structural schematic diagram of the side of the whole of the present invention;
[0025] Figure 3 Structural schematic diagram of the pretreatment mechanism of the present invention;
[0026] Figure 4 Structural schematic diagram of the inside of the heat insulation frame of the present invention;
[0027] Figure 5 Structural schematic diagram of the inside of the pretreatment mechanism of the present invention;
[0028] Figure 6 Structural schematic diagram of the separation mechanism of the present invention;
[0029] Figure 7 Structural schematic diagram of the spraying mechanism of the present invention;
[0030] Figure 8 Structural schematic diagram of the whole spraying mechanism of the present invention;
[0031] Figure 9 Structural schematic diagram of the rebound component of the present invention;
[0032] Figure 10 Structural schematic diagram of the elastic air pipe of the present invention;
[0033] Figure 11 Structural schematic diagram of the elastic component of the present invention;
[0034] Figure 12 This is a schematic structural view of the hollow block of the present invention;
[0035] Figure 13 This is a schematic structural view of the filter assembly of the present invention.
[0036] Reference numerals: 1, calcining furnace; 11, exhaust pipe; 12, discharging pipe; 2, pretreatment mechanism; 21, outer shell; 22, feed pipe; 23, first solenoid valve; 24, heat insulation frame; 25, heater; 26, hollow funnel; 261, air holes; 27, connecting pipe; 28, second solenoid valve; 3, separation mechanism; 31, arc-shaped rod; 32, rebound assembly; 321, first spring; 322, fixing plate; 33, vibration assembly; 331, fixing frame; 332, arc-shaped elastic rod; 333, vibrating plate; 34, backflush assembly; 341, elastic rod; 342, counterweight ball; 4, spraying mechanism; 41, arc-shaped air pipe; 411, intercommunication pipe; 42, hollow block; 43, rebound assembly; 431, fixing rod; 432, resonance sleeve; 44, elastic air pipe; 45, elastic airbag; 451, inclined nozzle; 46, elastic assembly; 461, connecting plate; 462, elastic block; 463, flexible plate; 464, partition rod; 47, positioning pipe; 48, filter assembly; 481, fixing ring; 482, fixing piece; 483, second spring; 484, elastic telescopic rod; 485, gas gathering hood; 486, sealing ring; 487, filter net; 49, gas distribution pipe; 5, gas and liquid supply mechanism; 51, compressed air tank; 511, gas metering controller; 512, first air pipe; 52, suction and exhaust fan; 521, second air pipe; 53, gas mixing valve; 54, liquid storage tank; 541, shunt pipe. Detailed implementation manners
[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0038] The present invention will be further described below with reference to the embodiments.
[0039] Embodiment: Refer to Figures 1 to 13 , a high-efficiency calcining furnace for petroleum coke, comprising:
[0040] Calcining furnace 1;
[0041] Pretreatment mechanism 2, the pretreatment mechanism 2 includes a housing 21 fixedly connected to the upper end face of the calciner 1, and a heat insulation frame 24 is fixedly connected at a lower position inside the housing 21;
[0042] Separation mechanism 3, the separation mechanism 3 includes a cambered rod 31 slidably connected to the inner top of the housing 21. On both sides of the bottom of the cambered rod 31 in the length direction, there are rebound components 32. On both sides of the cambered rod 31 in the length direction, there are vibration components 33 inclinedly arranged. At the bottom of the cambered rod 31 and where the rebound components 32 are provided, there are multiple recoil components 34;
[0043] Spraying mechanism 4, the spraying mechanism 4 includes a cambered air pipe 41 fixedly connected to the center position of the inner top of the heat insulation frame 24. The bottom of the cambered air pipe 41 is fixedly communicated with a hollow block 42. Between both sides of the cambered air pipe 41 and the inner walls of both sides of the heat insulation frame 24, there are multiple rebound components 43 arranged in a linear array. At the bottom of each rebound component 43, there is at least one elastic air pipe 44. On both sides of the hollow block 42, there are multiple positioning pipes 47 and filtering components 48 arranged in a rectangular array.
[0044] The cambered rod 31 of the separation mechanism 3 is used to guide and divide the petroleum coke entering the housing 21. The petroleum coke falls and collides with the cambered rod 31 and the vibration component 33, compressing the rebound component 32. When the collision disappears, the rebound component 32 rebounds, causing the cambered rod 31 and the vibration component 33 to return to the initial position. The collision occurs intermittently, and the cambered rod 31 and the vibration component 33 vibrate. The recoil component 34 enhances the compression and rebound degree of the rebound component 32, assisting the vibration component 33 to separate the adhered petroleum coke. The spraying mechanism 4 conveys the air with ultra-high concentration oxygen into the hollow block 42 through the cambered air pipe 41, and discharges it into the housing 21 through the positioning pipe 47 and the filtering component 48, realizing pressurization inside the housing 21.
[0045] Refer to Figures 1 to 4 , the gas output end of the calciner 1 is fixedly communicated with an exhaust pipe 11, and the solid output end of the calciner 1 is fixedly communicated with a discharge pipe 12;
[0046] A controller is installed on the side of the housing 21. The upper end face of the housing 21 is fixedly communicated with a feed pipe 22. A first solenoid valve 23 is installed on the pipe body of the feed pipe 22, and the first solenoid valve 23 is electrically connected to the controller. At least one heater 25 is fixedly connected to the inner wall of the heat insulation frame 24, and the heater 25 is electrically connected to the controller. The inner bottom of the heat insulation frame 24 is fixedly connected with a hollow funnel 26. A plurality of air holes 261 are opened on the inner inclined surfaces around the hollow funnel 26. The top of the hollow funnel 26 is fixedly communicated with a connecting pipe 27. The side of the hollow block 42 away from the cambered air pipe 41 is fixedly communicated with the connecting pipe 27. The nozzle of the hollow funnel 26 is fixedly connected with a second solenoid valve 28, and the second solenoid valve 28 is electrically connected to the controller.
[0047] The first solenoid valve 23 is used to control the feed pipe 22 to open when transporting petroleum coke into the housing 21 and close when transporting air with super-concentrated oxygen; the second solenoid valve 28 is closed both when transporting petroleum coke and air with super-concentrated oxygen, and opens after the anti-adhesion treatment of the petroleum coke in the housing 21 is completed. When spraying the protective liquid on the separated petroleum coke and pressurizing, the heater 25 heats the petroleum coke.
[0048] Refer to Figures 5 to 6 , the rebound assembly 32 includes a plurality of first springs 321 fixedly connected to the bottom of the arc-shaped rod 31. The other ends of the first springs 321 are fixedly connected to a fixed plate 322, and one side of the fixed plate 322 close to the inner wall of the housing 21 is fixedly connected to the inner wall of the housing 21;
[0049] The vibration assembly 33 includes a fixed frame 331 fixedly connected to the side of the arc-shaped rod 31 in an inclined manner. A plurality of arc-shaped elastic rods 332 are fixedly connected in a linear array inside the fixed frame 331. A vibration piece 333 is fixedly connected to the side of the arc-shaped elastic rod 332 away from the arc surface in an inclined manner;
[0050] The recoil assembly 34 includes an elastic rod 341 fixedly connected to the bottom of the arc-shaped rod 31. The other end of the elastic rod 341 is fixedly connected to a counterweight ball 342.
[0051] When the arc-shaped rod 31 and the vibration assembly 33 are impacted by the falling petroleum coke, the impact force generated is used to compress the first spring 321 in the rebound assembly 32. Since the impact force when the petroleum coke falls is intermittent, after the impact force disappears, the first spring 321 starts to rebound, and so on, thereby causing the arc-shaped rod 31 and the vibration assembly 33 to vibrate. Combining with the elastic rod 341 and the counterweight ball 342 in the recoil assembly 34, the vibration effect of the vibration of the arc-shaped rod 31 and the vibration assembly 33 is enhanced.
[0052] Refer to Figures 7 to 11 , the input end of the arc-shaped air pipe 41 is fixedly communicated with an interconnection pipe 411;
[0053] The rebound assembly 43 includes a fixed rod 431 fixedly connected to the side of the arc-shaped air pipe 41. The other side of the fixed rod 431 is fixedly connected to the inner wall of the heat insulation frame 24. At least two resonance sleeves 432 are fixedly connected in a linear array on the rod body of the fixed rod 431. An elastic air pipe 44 is fixedly connected to the bottom of the resonance sleeve 432. The other end of the elastic air pipe 44 is fixedly communicated with a branch air pipe 49.
[0054] A plurality of elastic air bags 45 are fixedly communicated in a linear array on the pipe body of the elastic air pipe 44. A plurality of inclined nozzles 451 are arranged in a circular array on the outer peripheral surface of the elastic air bag 45. A plurality of elastic components 46 are arranged in a circular array on the outer peripheral surface of the elastic air bag 45. The elastic components 46 and the inclined nozzles 451 are arranged alternately.
[0055] The resonance effect can be achieved by using the resonance sleeve 432 in the fixed rod 431. The elastic air pipe 44 uses the air with super-concentrated oxygen transported by the branch air pipe 49 to be ejected from the inclined nozzle 451 of the elastic airbag 45, and uses the ejection force of the ejected air to make the elastic air pipe 44 perform reciprocating up and down motion.
[0056] Refer to Figures 10 to 11 , the elastic component 46 includes a connecting plate 461 fixedly connected to the outer peripheral surface of the elastic airbag 45. On both opposite sides of the connecting plate 461, a plurality of elastic blocks 462 are fixedly connected from top to bottom. On the other side of each elastic block 462, a plurality of flexible plates 463 are fixedly connected in a common linear array. On the other side of each flexible plate 463, a plurality of partition rods 464 are fixedly connected in a common linear array.
[0057] The elastic blocks 462 in the elastic component 46 can buffer the petroleum coke when the flexible plates 463 and the partition rods 464 are collided by the overturned petroleum coke in the hollow funnel 26, avoiding damage to the petroleum coke. At the same time, the flexible plates 463 and the partition rods 464 can also change the direction of the petroleum coke, so that the petroleum coke converging in the hollow funnel 26 and around the elastic airbag 45 can contact the protective liquid.
[0058] Refer to Figure 8 、 Figures 10 to 11 , the positioning pipe 47 is fixedly communicated with the hollow block 42. The number and position of the filtering components 48 correspond to those of the positioning pipe 47 one by one. The filtering component 48 includes a plurality of second springs 483 fixedly connected to the side surface of the hollow block 42 in a circumferential array with the positioning pipe 47 as the center. The other side of the second spring 483 is fixedly connected with a fixing piece 482. A fixing ring 481 is fixedly connected to the opposite side of each fixing piece 482. A sealing ring 486 is fixedly connected to the edge of the fixing ring 481 facing the positioning pipe 47. A filter net 487 is fixedly connected to the inner peripheral surface of the fixing ring 481. An elastic telescopic rod 484 is fixedly connected to the side of the filter net 487 away from the positioning pipe 47. The telescopic end of the elastic telescopic rod 484 is fixedly connected with a gas collecting hood 485.
[0059] When the hollow block 42 absorbs air, the gas collecting hood 485 in the filtering component 48 squeezes the fixing ring 481 by air resistance, causing the second spring 483 to compress. As the second spring 483 compresses, the fixing ring 481 is in sealed contact with the positioning pipe 47 through the sealing ring 486, allowing the sucked air to enter the hollow block 42 only through the filter net 487, thus preventing fine petroleum coke from being sucked in. When the suction force disappears, the compressed second spring 483 rebounds, causing the fine petroleum coke remaining on the filter net 487 to break away. When the hollow block 42 discharges air, the gas collecting hood 485 causes the second spring 483 to extend, increasing the distance between the fixing ring 481 and the positioning pipe 47, and realizing the rapid delivery of air into the housing 21.
[0060] Refer toFigures 1 to 3 It further includes a gas and liquid supply mechanism 5. The gas and liquid supply mechanism 5 includes a compressed gas tank 51, an air suction and exhaust fan 52, and a liquid storage tank 54 fixedly connected to the side of the calciner 1. The compressed gas tank 51, the air suction and exhaust fan 52, and the liquid storage tank 54 are all electrically connected to the controller. A gas mixing valve device 53 is fixedly connected to the side of the arc-shaped gas pipe 41 of the outer shell 21. The gas mixing valve device 53 has two input ends and one output end. The other side of the intercommunication pipe 411 penetrates through the outer shell 21 and is fixedly connected to the output end of the gas mixing valve device 53, and the gas mixing valve device 53 is electrically connected to the controller.
[0061] The output end of the compressed gas tank 51 is fixedly connected to a gas metering controller 511. The output end of the gas metering controller 511 is fixedly connected to a first gas pipe 512. The other end of the first gas pipe 512 is fixedly connected to one of the input ends of the gas mixing valve device 53. The output end of the air suction and exhaust fan 52 is fixedly connected to a second gas pipe 521. The other end of the second gas pipe 521 is fixedly connected to the other input end of the gas mixing valve device 53. The output end of the liquid storage tank 54 is fixedly connected to a shunt pipe 541. The shunt pipe 541 is composed of a main pipe and a plurality of branch pipes. The main pipe is connected to the liquid storage tank 54, and the branch pipes correspond to the number of the gas distribution pipes 49 and are interconnected.
[0062] The gas mixing valve device 53 is used to control the proportion of air and oxygen transported into the outer shell 21 by the compressed gas tank 51 and the air suction and exhaust fan 52. The gas mixing valve device 53 transports air into the arc-shaped gas pipe 41 through the intercommunication pipe 411. The gas metering controller 511 in the compressed gas tank 51 is used to detect and control the amount of oxygen transported by the compressed gas tank 51. The liquid storage tank 54 transports the protective liquid into the gas distribution pipes 49 through the shunt pipe 541, and then transports the protective liquid into the elastic gas pipes 44 through the gas distribution pipes 49.
[0063] The working principle of the present invention is as follows:
[0064] The first step: Before the equipment runs, first connect the feed pipe 22 with the previous process of the equipment (the equipment in this solution refers to the high-efficiency petroleum coke calcination furnace), ensure that the petroleum coke can smoothly enter the pretreatment mechanism of the calcination furnace 1. At the same time, the staff controls the first solenoid valve 23 to open through the controller. As the previous process of the equipment discharges the petroleum coke, at this time, under the action of gravity, the petroleum coke freely falls from the feed pipe 22 into the outer shell 21. Due to the viscosity of the petroleum coke itself and the mutual collision during transportation, there will be some adhesion situations. And when these adhered petroleum cokes fall in the outer shell 21, they will first hit the arc surface of the arc-shaped rod 31 of the separation mechanism 3. Since the arc surface of the arc-shaped rod 31 is a curved shape protruding upward, when the petroleum coke hits the arc surface, the arc surface in a curved shape makes the petroleum coke not fall directly vertically. According to the basic principle of object motion, when the petroleum coke contacts the arc surface, the tangent direction of the contact point will change the motion direction of the petroleum coke, so that under the action of the arc surface, the petroleum coke will disperse to both sides along the trend of the arc surface. Under the action of the arc surface, the petroleum coke will disperse to both sides along the trend of the arc surface, realizing the guiding and dividing functions of the arc-shaped rod 31 on the petroleum coke. The arc-shaped rod 31 divides the petroleum coke (subsequently, the non-adhered petroleum coke and the adhered petroleum coke are collectively referred to as petroleum coke) into two parts, making them respectively contact the vibration components 33 inclined on both sides.
[0065] Among them, when the adhered petroleum coke contacts the arc-shaped rod 31 and the vibration component 33, it will generate a downward impact force on them. This impact force causes the arc-shaped rod 31 and the vibration component 33 to move downward, thereby squeezing the first spring 321 in the spring-back component 32. Since the first spring 321 has elasticity, it will undergo elastic deformation when being squeezed and store elastic potential energy. And because the impact caused by the petroleum coke on the arc-shaped rod 31 and the vibration component 33 is not continuous and stable, but intermittent. Because the petroleum coke enters the outer shell 21 through the feed pipe 22 by free fall under the action of gravity, during the feeding process, the petroleum coke does not enter continuously and closely arranged, but falls in batches or in pieces at a certain interval. At the same time, due to the diameter of the feed pipe 22, the particle size and shape differences of the petroleum coke, the quantity and time interval of the petroleum coke entering the outer shell 21 each time are not fixed. This discrete feeding method determines that the time when they hit the arc-shaped rod 31 and the vibration component 33 is discontinuous, resulting in the intermittence of the impact;
[0066] Since the impact of the petroleum coke is not continuous and stable but intermittent, when the impact force disappears, the first spring 321 begins to release the stored elastic potential energy and return to its original length, generating an upward rebound force. This rebound force drives the arc-shaped rod 31 and the vibration assembly 33 back to the initial position. Repeating this process, the arc-shaped rod 31 and the vibration assembly 33 will continuously vibrate up and down. During the vibration of the arc-shaped rod 31 and the vibration assembly 33, the recoil assembly 34 also enhances the up-and-down vibration amplitude of the arc-shaped rod 31 and the vibration assembly 33. Because when the arc-shaped rod 31 and the vibration assembly 33 are pressed down, the elastic rod 341 will undergo elastic deformation along with the movement of the arc-shaped rod 31. At the same time, due to its own inertia, the counterweight ball 342 will generate a force in the direction opposite to the pressing direction. This force hinders the pressing speed of the arc-shaped rod 31 and the vibration assembly 33 to a certain extent, making their pressing process relatively slow and storing more energy. When the arc-shaped rod 31 and the vibration assembly 33 rebound, the inertia of the counterweight ball 342 will enhance the rebounding force, further increasing the vibration amplitude and frequency. The vibrating vibration assembly 33 continuously strikes the adhered petroleum coke, gradually separating the adhered parts in the petroleum coke, thus avoiding the problem of uneven material distribution caused by the adhered petroleum coke during subsequent calcination, ensuring the heat transfer efficiency, and enabling the petroleum coke to be evenly heated.
[0067] Among them, the reason why the vibration assembly 33 continuously strikes the adhered petroleum coke to separate the adhered petroleum coke is as follows:
[0068] When the petroleum coke impacts the vibration assembly 33, the kinetic energy of the petroleum coke is transferred to the vibration assembly 33, causing it to have an initial displacement and deformation. The fixed frame 331 in the vibration assembly 33 is inclined and fixedly connected to the arc-shaped rod 31. The arc-shaped elastic rods 332 distributed linearly inside undergo elastic deformation under the action of the impact force, absorbing and storing part of the energy. Moreover, since the impact of the petroleum coke is intermittent, when the impact force disappears, the arc-shaped elastic rods 332 begin to rebound, releasing the stored elastic potential energy. This rebound causes the fixed frame 331 to drive the vibrating piece 333 back to a position close to the initial position, generating an upward acceleration. With the continuous impact of the subsequent petroleum coke, the vibration assembly 33 is continuously excited and undergoes up-and-down reciprocating vibration under the action of the elastic restoring force of the arc-shaped elastic rods 332;
[0069] During the vibration of the vibration assembly 33, the vibrating piece 333 will continuously contact the petroleum coke and apply a force. The mechanical force generated by the vibration of the vibrating piece 333 acts on the joint of the adhered petroleum coke in the petroleum coke, causing the adhesion points to be subjected to repeated pulling, twisting and other stresses. These stresses will gradually damage the adhesion structure between the petroleum cokes, gradually separating the adhered petroleum cokes. For example, when the vibrating piece 333 moves upward, it will generate an upward pulling force on the adhered petroleum coke in contact with it; when moving downward, it will generate a downward pressure. This alternating force effectively separates the adhered part;
[0070] Moreover, the vibration assembly 33 will not damage the original state of the agglomerated petroleum coke when separating it. The reasons are as follows: First, the arc-shaped elastic rod 332 has good elasticity and buffering performance. When the petroleum coke impacts, it absorbs most of the impact energy through its own elastic deformation, reducing the impact force transmitted to the petroleum coke. Just like a spring buffering an object collision, the force exerted by the vibration assembly 33 on the petroleum coke is softer. Second, the intermittent impact of the petroleum coke on the arc-shaped rod 31 and the vibration assembly 33 limits the vibration frequency and amplitude of the vibration assembly 33. Third, the vibration plate 333 is made of flexible material and is inclined on one side. The flexibility enables it to better fit the surface of the petroleum coke to disperse the force, avoiding the generation of concentrated and excessive pressure points. The inclined design helps to guide the movement direction of the petroleum coke, reducing damage to the petroleum coke during the separation process.
[0071] The second step: After the separation mechanism 3 completes the separation of the agglomerated part in the petroleum coke, the petroleum coke falls to the lower part inside the outer shell 21 due to free fall. At this time, the liquid storage tank 54 in the gas and liquid supply mechanism 5 starts to work under the control of the controller. The liquid storage tank 54 consists of a pump body and a liquid storage barrel. The liquid storage barrel of the liquid storage tank 54 stores a protective liquid for preventing the petroleum coke from adhering again, such as tar-ammonia separator, coal tar pitch, etc. With the start of the liquid storage tank 54, the pump body transports the protective liquid stored in the liquid storage barrel to the shunt pipe 541. The shunt pipe 541 consists of a main pipe and multiple branch pipes. The main pipe is connected to the pump body of the liquid storage tank 54, enabling the protective liquid to flow into the gas distribution pipe 49 through the branch pipes of the shunt pipe 541 and then enter the elastic air pipes 44 at their respective positions.
[0072] Among them, since multiple elastic air bags 45 are spaced apart on the elastic air pipe 44, and a plurality of inclined nozzles 451 are annularly arranged on the outer peripheral surface of the elastic air bag 45. When the protective liquid enters the elastic air pipe 44, it will fill the elastic air bag 45. Under the pressure of the protective liquid, the elastic air bag 45 sprays the protective liquid onto the surrounding petroleum coke through the inclined nozzles 451. During the spraying process of the protective liquid, the spraying force generated by the spraying of the protective liquid acts on the elastic component 46, thereby causing the elastic air pipe 44 to move up and down reciprocally because:
[0073] The resonance sleeve 432 on the fixed rod 431 in the rebound assembly 43 cooperates with the elastic air pipe 44. When the arc-shaped air pipe 41 conveys air containing ultra-concentrated oxygen (the process of the arc-shaped air pipe 41 conveying air with ultra-concentrated oxygen will be described later), the flow of the air current triggers the resonance of the resonance sleeve 432, driving the elastic air pipe 44 to move up and down. This movement enables the protective liquid to be sprayed more widely and evenly on the surrounding petroleum coke, avoiding the concentrated spraying of the protective liquid in a local area and ensuring that the surface of the petroleum coke can be covered by the protective liquid. Moreover, since the elastic components 46 and the inclined nozzles 451 on the elastic airbag 45 are arranged alternately, when the elastic airbag 45 sprays the protective liquid, the generated spraying force will act on the elastic component 46. The elastic block 462 in the elastic component 46 undergoes elastic deformation under the action of the spraying force. This deformation causes the connected flexible plate 463 and the partition rod 464 to also generate corresponding movements. During the movement of the flexible plate 463 and the partition rod 464, on the one hand, they play a buffering role for the petroleum coke, avoiding damage to the petroleum coke due to collision when it contacts the elastic component 46; on the other hand, they will change the movement trajectory and position of the petroleum coke. For example, when the petroleum coke gathers around the elastic airbag 45, the flexible plate 463 and the partition rod 464 will block and guide the movement direction of the petroleum coke, enabling the petroleum coke to come into full contact and mixing with the protective liquid. Also, when the air transmitted by the hollow block 42 is discharged from the air holes 261 through the hollow funnel 26 (this process will be described later), during the turnover process of the petroleum coke converged in the hollow funnel 26, the elastic component 46 can also interact with the turned-over petroleum coke, further promoting the uniform mixing of the petroleum coke and the protective liquid and effectively preventing the re-adhesion of the petroleum coke.
[0074] Step 3: While the liquid storage tank 54 is started, the suction and exhaust fan 52 and the compressed air tank 51 are also started simultaneously. After the suction and exhaust fan 52 is started, it will first rotate forward to suck in external air, and the compressed air tank 51 stores compressed oxygen and controls the amount of oxygen delivered by the compressed air tank 51 through the gas metering controller 511 (the amount of oxygen delivered controlled by the gas metering controller 511 is custom-set by the staff in the controller according to the actual situation). The external air and the compressed oxygen are respectively conveyed to the gas mixing valve device 53 through the first air pipe 512 and the second air pipe 521. Under the control of the controller, the mixing ratio of air and oxygen is adjusted according to the preset ratio, and then the mixed air containing ultra-concentrated oxygen is conveyed to the arc-shaped air pipe 41 through the intercommunication pipe 411. The arc-shaped air pipe 41 conveys the air containing ultra-concentrated oxygen to the hollow block 42 (subsequent air containing ultra-concentrated oxygen is uniformly referred to as air). The hollow block 42 then conveys the air to the inside of the housing 21 through the positioning pipe 47, the hollow funnel 26, and the filtering assembly 48. As the gas continuously enters the housing 21, the internal air pressure gradually increases, and since a pressure detector is provided inside the housing 21 (the pressure detector is a prior art, so it is not shown in the figure).
[0075] It should be noted specifically that during the petroleum coke feeding stage, the controller controls the first solenoid valve 23 to open, allowing the petroleum coke to enter the outer shell 21 through the feed pipe 22. When air transportation begins, both the first solenoid valve 23 and the second solenoid valve 28 are closed to prevent gas leakage and ensure normal pressurization within the outer shell 21, creating a sealed space within the outer shell 21. The second solenoid valve 28 remains closed during the supply and pressurization processes to prevent the gas within the outer shell 21 from leaking through the funnel nozzle, facilitating the increase in air pressure. When the air pressure within the outer shell 21 reaches the specified value and the discharge is completed, after the pressurization and anti-adhesion treatment of the petroleum coke, the second solenoid valve 28 and the first solenoid valve 23 are opened simultaneously, enabling the treated petroleum coke to enter the calciner 1 for calcination.
[0076] Among them, the pressurized air, the pressure generated by which helps the elastic air pipe 44 spray the protective liquid more efficiently, prompts the elastic component 46 to work better, allows the protective liquid to be fully mixed with the petroleum coke, avoids the re-adhesion of the petroleum coke in the subsequent process. At the same time, the higher air pressure enables the super-concentrated oxygen to contact the petroleum coke more fully, accelerating the oxidation reaction, enabling the combustible components in the petroleum coke to be rapidly oxidized, effectively removing impurities and volatile components, improving the purity of the petroleum coke, enhancing its chemical stability and calorific value, and thus improving the subsequent calcination effect.
[0077] During the pressurization of the petroleum coke and the spraying of the protective liquid, the heater 25, under the control of the controller, preheats the petroleum coke according to the process requirements. When the air pressure detector detects that the air pressure within the outer shell 21 reaches the set value, the controller issues an instruction to make the suction and exhaust fan 52 start to reverse, generating suction. While the suction and exhaust fan 52 is reversing, the gas metering controller 511 will close, enabling the hollow block 42 and the arc-shaped air pipe 41 to receive suction, releasing the air pressure within the outer shell 21 and restoring it to the normal air pressure level. At this time, the second solenoid valve 28 is opened, and the petroleum coke that has undergone anti-adhesion treatment and air pressure adjustment passes through the hollow funnel 26 and enters the calciner 1 for calcination.
[0078] It should be noted specifically the states of the filter assembly 48 and the hollow funnel 26 during air suction and exhaust and their effects on the petroleum coke:
[0079] 1): The states of the filter assembly 48 during air suction and exhaust and its effects on the petroleum coke:
[0080] Suction state: The suction and exhaust fan 52 reverses, and the hollow block 42 sucks the air within the outer shell 21. The gas will generate air resistance to the air-gathering cover 485 of the filter assembly 48. The air-gathering cover 485 squeezes the fixing ring 481, causing it to move towards the positioning pipe 47 and compress the second spring 483. At this time, the fixing ring 481 is in close sealed contact with the positioning pipe 47 through the sealing ring 486. The outside air can only enter the hollow block 42 after being filtered by the filter screen 487, preventing fine petroleum coke particles from being sucked in, ensuring the purity of the air entering the outer shell 21, and providing a good reaction environment.
[0081] Exhaust state: the suction and exhaust fan 52 rotates forward, the hollow block 42 discharges air into the outer shell 21, the second spring 483 rebounds, the distance between the fixing ring 481 and the positioning tube 47 increases, the air can quickly enter the outer shell 21 through the positioning tube 47, and the fine petroleum coke particles originally attached to the filter screen 487 are detached under the rebound action of the second spring 483, and return to the outer shell 21 to participate in subsequent processing, thereby avoiding material loss.
[0082] 2): The state of the hollow funnel 26 when sucking and exhausting air and its effect on petroleum coke:
[0083] Inhalation state: when air is sucked into the outer shell 21, the hollow funnel 26 uses its special funnel shape to gather the petroleum coke falling from above, providing it with temporary storage and gathering space, so that it can enter the calcining furnace 1 in a unified manner later. It does not directly participate in the air suction and exhaust process, and can ensure that the petroleum coke enters the next stage in an orderly manner.
[0084] Exhaust state: when releasing air into the outer shell 21, part of the air is discharged through the pores 261 on the inner slope around the hollow funnel 26. The discharged air exerts a force on the petroleum coke gathered therein to flip it over, allowing the petroleum coke to contact the protective liquid more fully, enhancing the anti-adhesion effect, and at the same time making the petroleum coke more evenly distributed, preparing for entering the calcining furnace 1, ensuring uniform heat transfer during calcination, and improving the calcination quality.
[0085] A method for a petroleum coke efficient calcining furnace, the method comprising: separation of adhered petroleum coke, anti-adhesion of petroleum coke, and pressurization and decompression of petroleum coke, specifically:
[0086] Separation of adhered petroleum coke: First, the adhered petroleum coke entering the shell through the feed pipe is separated into two parts under the action of the cambered rod, so that the adhered petroleum coke contacts the vibration components on both sides. Since the adhered petroleum coke is a free fall when entering the shell, when the adhered petroleum coke contacts the cambered rod and the vibration component, it will cause impact on the cambered rod and the vibration component, thereby generating downward pressure. As the cambered rod and the vibration component are pressed downward, the rebound component will be squeezed. Since the impact caused by the adhered petroleum coke is intermittent, the rebound component will restore the cambered rod and the vibration component to their initial positions when the adhered petroleum coke does not impact the cambered rod and the vibration component. This reciprocating process causes the vibration component to vibrate, and the vibrating vibration component achieves the separation effect of the adhered petroleum coke.
[0087] Anti-adhesion of petroleum coke: The liquid is received through the elastic air pipe and discharged through the elastic airbag to spray the liquid on the separated petroleum coke, and the petroleum coke and the liquid are fully mixed through the elastic component;
[0088] Pressurization and depressurization of petroleum coke: Receive air containing super-concentrated oxygen through the arc-shaped gas pipe, and through the hollow block, positioning pipe and filtration component, continuously discharge air containing super-concentrated oxygen inside the outer shell, thereby increasing the air pressure inside the outer shell, making the oxygen in the air more fully contact with the petroleum coke, accelerating the oxidation reaction during the subsequent calcination process. As the air pressure inside the outer shell reaches the specified value, the hollow block and the arc-shaped gas pipe receive suction, thereby releasing the air pressure inside the outer shell, restoring the air pressure inside the outer shell to normal, and entering the calcination furnace for calcination.
[0089] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.
Claims
1. A petroleum coke high efficiency calcining furnace, characterized in that: include: Calcination furnace (1); A pretreatment mechanism (2), the pretreatment mechanism (2) comprising a housing (21) fixedly connected to the upper end surface of the calcining furnace (1), a heat insulation frame (24) fixedly connected to the lower position inside the housing (21); A separation mechanism (3), the separation mechanism (3) comprising a curved rod (31) slidably connected to the top of the housing (21), rebound components (32) being arranged on both sides of the bottom of the curved rod (31) in the length direction, vibration components (33) being arranged obliquely on both sides of the length direction of the curved rod (31), and a plurality of recoil components (34) being arranged at the bottom of the curved rod (31) and located at the rebound component (32); A spraying mechanism (4), the spraying mechanism (4) comprising a curved air pipe (41) fixedly connected to the top center position of a heat insulation frame (24), the bottom of the curved air pipe (41) being fixedly connected to a hollow block (42), a plurality of rebound components (43) being arranged in a linear array between both sides of the curved air pipe (41) and the inner walls of both sides of the heat insulation frame (24), at least one elastic air pipe (44) being arranged at the bottom of each rebound component (43), and a plurality of positioning tubes (47) and filter components (48) being arranged in a rectangular array on both sides of the hollow block (42).
2. A petroleum coke high-efficiency calcining furnace according to claim 1, characterized in that: The gas output end of the calcining furnace (1) is fixedly connected to an exhaust pipe (11), and the solid output end of the calcining furnace (1) is fixedly connected to a discharge pipe (12); A controller is installed on the side of the shell (21); a feed pipe (22) is fixedly connected to the upper end surface of the shell (21); a first solenoid valve (23) is installed on the body of the feed pipe (22), and the first solenoid valve (23) is electrically connected to the controller; at least one heater (25) is fixedly connected to the inner wall of the heat insulation frame (24), and the heater (25) is electrically connected to the controller; a hollow funnel (26) is fixedly connected to the inner bottom of the heat insulation frame (24); a plurality of air holes (261) are provided on the inner inclined surfaces around the hollow funnel (26); a connecting pipe (27) is fixedly connected to the top of the hollow funnel (26); a side of the hollow block (42) away from the arc-surface air pipe (41) is fixedly connected to the connecting pipe (27); a second solenoid valve (28) is fixedly connected to the outlet of the hollow funnel (26), and the second solenoid valve (28) is electrically connected to the controller.
3. A petroleum coke high-efficiency calcining furnace according to claim 1, characterized in that: The rebound component (32) comprises a plurality of first springs (321) fixedly connected to the bottom of the cambered rod (31); the other end of the first spring (321) is fixedly connected to a fixing plate (322); and the fixing plate (322) is fixedly connected to the inner wall of the outer shell (21) on one side thereof close to the inner wall of the outer shell (21); The vibration component (33) comprises a fixing frame (331) fixedly connected at an angle to the side of the arc surface rod (31), a plurality of arc surface elastic rods (332) being fixedly connected in a linear array inside the fixing frame (331), and a vibration sheet (333) being fixedly connected at an angle to the side of the arc surface elastic rod (332) away from the arc surface; The recoil assembly (34) comprises an elastic rod (341) fixedly connected to the bottom of the cambered rod (31), and the other end of the elastic rod (341) is fixedly connected to a weighted ball (342).
4. A petroleum coke high-efficiency calcining furnace according to claim 1, characterized in that: The input end of the arc-surface air pipe (41) is fixedly connected to an interconnecting pipe (411); The rebound component (43) comprises a fixed rod (431) fixedly connected to a side surface of the arc-surface air tube (41); the other side of the fixed rod (431) is fixedly connected to an inner wall of a heat insulation frame (24); a rod body of the fixed rod (431) is fixedly connected to at least two resonance sleeves (432) in a linear array; the bottom of the resonance sleeve (432) is fixedly connected to an elastic air tube (44); and the other end of the elastic air tube (44) is fixedly connected to an air distribution pipe (49).
5. A petroleum coke high-efficiency calcining furnace according to claim 1, characterized in that: The elastic air tube (44) has a plurality of elastic air bags (45) fixedly connected to the tube body in a linear array, the outer peripheral surface of the elastic air bag (45) is provided with a plurality of inclined nozzles (451) in an annular array, and the outer peripheral surface of the elastic air bag (45) is provided with a plurality of elastic components (46) in an annular array, and the elastic components (46) and the inclined nozzles (451) are arranged alternately.
6. A petroleum coke high-efficiency calcining furnace according to claim 5, characterized in that: The elastic component (46) comprises a connecting plate (461) fixedly connected to the outer peripheral surface of the elastic airbag (45), a plurality of elastic blocks (462) being fixedly connected from top to bottom on opposite sides of the connecting plate (461), a plurality of flexible plates (463) being fixedly connected in a common linear array on the other side of each of the elastic blocks (462), and a plurality of partition rods (464) being fixedly connected in a common linear array on the other side of each of the flexible plates (463).
7. A petroleum coke high-efficiency calcining furnace according to claim 2, characterized in that: The positioning tube (47) is fixedly connected to the hollow block (42); the number and position of the filter assembly (48) and the positioning tube (47) correspond one to one; the filter assembly (48) comprises a plurality of second springs (483) fixedly connected to the side of the hollow block (42) in a circular array with the positioning tube (47) as the center; a fixing plate (482) is fixedly connected to the other side of the second spring (483); each fixing plate (482) is fixedly connected to a fixing ring (481) on the opposite side; a sealing ring (486) is fixedly connected to the edge of the fixing ring (481) facing the positioning tube (47); a filter screen (487) is fixedly connected to the inner circumference of the fixing ring (481); a side of the filter screen (487) away from the positioning tube (47) is fixedly connected to an elastic telescopic rod (484); and a gas collecting hood (485) is fixedly connected to the telescopic end of the elastic telescopic rod (484).
8. A petroleum coke high-efficiency calcining furnace according to claim 4, characterized in that: The invention also comprises a gas supply and liquid supply mechanism (5), the gas supply and liquid supply mechanism (5) comprising a compressed gas box (51), an exhaust fan (52) and a liquid storage box (54) fixedly connected to the side of the calcining furnace (1), and the compressed gas box (51), the exhaust fan (52) and the liquid storage box (54) are all electrically connected to the controller, the housing (21) is located on the side of the arc-surface gas pipe (41) and is fixedly connected to a gas mixing valve (53), the gas mixing valve (53) having two input ends and one output end, the other side of the interconnecting pipe (411) passes through the housing (21) and is fixedly connected to the output end of the gas mixing valve (53), and the gas mixing valve (53) is electrically connected to the controller.
9. A petroleum coke high-efficiency calcining furnace according to claim 8, characterized in that: The output end of the compressed gas box (51) is fixedly connected to a gas metering controller (511), the output end of the gas metering controller (511) is fixedly connected to a first gas pipe (512), the other end of the first gas pipe (512) is fixedly connected to one of the input ends of the gas mixing valve (53), the output end of the suction and exhaust fan (52) is fixedly connected to a second gas pipe (521), the other end of the second gas pipe (521) is fixedly connected to the other input end of the gas mixing valve (53), the output end of the liquid storage tank (54) is fixedly connected to a branch pipe (541), the branch pipe (541) is composed of a main pipe and a plurality of branch pipes, the main pipe is connected to the liquid storage tank (54), the number of the branch pipes corresponds to that of the gas branch pipe (49), and they are connected to each other.
10. A method for a petroleum coke high-efficiency calcining furnace, used in the petroleum coke high-efficiency calcining furnace according to any one of claims 1 to 9, characterized in that: The method comprises: separation of sticky petroleum coke, anti-sticking of petroleum coke, and pressurization and depressurization of petroleum coke, specifically: Separation of adhered petroleum coke: First, the adhered petroleum coke enters the housing (21) through the feed pipe (22) and is separated into two parts under the action of the cambered rod (31), so that the adhered petroleum coke contacts the vibration components (33) on both sides. Since the adhered petroleum coke is a free fall when entering the housing (21), when the adhered petroleum coke contacts the cambered rod (31) and the vibration component (33), it will cause an impact on the cambered rod (31) and the vibration component (33), thereby generating a downward pressure. As the cambered rod (31) and the vibration component (33) are pressed downward, the rebound component (32) is squeezed. Since the impact caused by the adhered petroleum coke is intermittent, when the adhered petroleum coke does not impact the cambered rod (31) and the vibration component (33), the rebound component (32) restores the cambered rod (31) and the vibration component (33) to their initial positions, and the vibration component (33) vibrates in this way. The vibrating vibration component (33) achieves the effect of separating the adhered petroleum coke. Anti-adhesion of petroleum coke: the liquid is received by the elastic air pipe (44) and discharged through the elastic air bag (45) so as to spray the liquid on the separated petroleum coke, and the petroleum coke and the liquid are fully mixed through the elastic component (46); Pressurization and depressurization of petroleum coke: air containing super-concentrated oxygen is received through the curved air pipe (41), and the air containing super-concentrated oxygen is continuously discharged into the shell (21) through the hollow block (42), the positioning tube (47) and the filter assembly (48), thereby increasing the air pressure inside the shell (21), allowing the oxygen in the air to more fully contact the petroleum coke, thereby accelerating the oxidation reaction in the subsequent calcination process. As the air pressure inside the shell (21) reaches a specified value, the hollow block (42) and the curved air pipe (41) receive suction, thereby releasing the air pressure inside the shell (21), so that the air pressure inside the shell (21) returns to normal, and enters the calcining furnace (1) for calcination.
Citation Information
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