A petroleum coke treatment device for prebaked anodes

Abstract

This utility model provides a petroleum coke treatment device for prebaked anodes, including a tank-type calcining furnace body with a feeding port at the top and a discharge port at the bottom. A discharge chamber is connected to the bottom of the discharge port. The treatment device also includes a clearing mechanism, comprising a sleeve coaxially disposed within the discharge chamber, a rotating rod coaxially disposed within the discharge chamber, a first stirring element disposed on the rotating rod and above the sleeve, a second stirring element disposed on the rotating rod and below the sleeve, and a vertically extending telescopic mechanism connected to the bottom of the rotating rod. This utility model solves the problems of easy clogging of the discharge port and discharge chamber of existing tank-type calcining furnaces, poor stirring effect, and lack of effective cooling and auxiliary discharge measures.

Description

Technical Field

[0001] This utility model relates to the technical field of petroleum coke calcination equipment. More specifically, this utility model relates to a petroleum coke processing device for prebaked anodes. Background Technology

[0002] In modern aluminum electrolysis, prebaked anodes are a key consumable material, and their quality directly affects the production efficiency and product quality of aluminum electrolysis. Petroleum coke is the main raw material for producing prebaked anodes, and the effective treatment of petroleum coke is a crucial step in ensuring the quality of prebaked anodes.

[0003] Currently, tank calciners are commonly used equipment for petroleum coke processing. However, existing tank calciners frequently experience outlet blockage during petroleum coke processing, severely impacting production efficiency and continuity. Traditional stirring mechanisms, due to design flaws, have limited stirring range and a single method, failing to adequately stir the petroleum coke. This causes the coke to easily accumulate and clump at the outlet, hindering its smooth flow. Furthermore, the high-temperature calcination of petroleum coke may produce a certain degree of viscosity, further exacerbating the likelihood of blockage. Excessive accumulation at the discharge port can trigger blasting and cause safety accidents. Frequent blockages not only require frequent manual cleaning, increasing labor intensity and costs, but can also lead to equipment downtime, affecting the stability of the entire production process, causing production delays and economic losses. Furthermore, the manual cleaning process carries the risk of burns to personnel. Therefore, developing a petroleum coke processing device that effectively solves the outlet blockage problem and improves stirring efficiency is urgently needed. Utility Model Content

[0004] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0005] Another objective of this invention is to provide a petroleum coke treatment device for prebaked anodes, which solves the problems of easy blockage of the discharge port and discharge chamber of existing tank calciners, poor stirring effect, and lack of effective cooling and auxiliary discharge measures. In addition, timely cleaning of the discharge port avoids safety accidents such as blasting and burns to personnel, and greatly improves the safety of the device.

[0006] To achieve these objectives and other advantages according to the present invention, a petroleum coke processing device for prebaked anodes is provided, comprising a tank-type calcining furnace body, a feeding port at the top, and a discharge port at the bottom, wherein a discharge chamber is connected to the bottom of the discharge port. The processing device further includes a unblocking mechanism, comprising:

[0007] A sleeve is coaxially disposed within the discharge cavity; the sleeve is connected to the inner wall of the discharge cavity via a first connecting rod.

[0008] A rotating rod is coaxially disposed in the discharge chamber, and the top of the rotating rod spirally rotates through the sleeve and extends into the discharge port;

[0009] The first stirring component is disposed on the rotating rod and located above the sleeve;

[0010] The second stirring component is disposed on the rotating rod and located below the sleeve;

[0011] A telescopic mechanism that extends and retracts in the vertical direction, the output end of which is connected to the bottom of the rotating rod.

[0012] Preferably, the petroleum coke processing device for prebaked anodes further includes a guide plate, which has a frustum structure with a larger upper part and a smaller lower part. The top of the guide plate is sealed to the inner wall of the calcining furnace body, and the bottom is sealed to the inner wall of the discharge port.

[0013] Preferably, in the petroleum coke treatment device for prebaked anodes, the first stirring element includes a plurality of first stirring rods spaced apart on the rotating rod, each first stirring rod having its lower end connected to the rotating rod and its upper end extending outward and upward at an angle; each first stirring rod has a plurality of first stirring blades spaced apart.

[0014] Preferably, in the petroleum coke treatment device for prebaked anodes, the second stirring element includes a plurality of second stirring rods staggered on the rotating rod, each second stirring rod being horizontally arranged, and a plurality of second stirring blades being spaced apart on the second stirring rod. Each second stirring blade is slidably connected to the corresponding second stirring rod along the axial direction of the second stirring rod, and any two adjacent second stirring blades are connected by a spring.

[0015] Preferably, in the petroleum coke treatment device for prebaked anodes, each second stirring rod has a scraper at one end, which contacts the inner wall of the discharge chamber.

[0016] Preferably, in the petroleum coke processing device for prebaked anodes, the sidewall of the discharge chamber is a hollow structure, and a spiral condenser tube is provided inside the sidewall of the discharge chamber.

[0017] Preferably, in the petroleum coke treatment device for the prebaked anode, each second stirring blade has a rhomboid structure.

[0018] Preferably, in the petroleum coke processing device for prebaked anodes, the inner wall of the sleeve is provided with a spiral groove, and a slider is provided on one side of the rotating rod, which is slidably disposed in the spiral groove.

[0019] Preferably, in the petroleum coke processing device for prebaked anodes, the telescopic mechanism includes a cylinder fixed to the outer wall of the discharge chamber, and its piston rod is connected to the bottom of the rotating rod via an L-shaped second connecting rod.

[0020] This utility model has at least the following beneficial effects:

[0021] This invention solves the problems of easy clogging of the discharge port and discharge chamber of existing tank-type calcining furnaces, poor stirring effect, and lack of effective cooling and auxiliary discharge measures. Specifically, a discharge chamber is connected below the discharge port. A sleeve and a rotating rod that rotate in a spiral motion are set in the discharge chamber. A first stirring element and a second stirring element are respectively set at the upper and lower parts of the rotating rod. When the rotating rod moves up and down in a spiral motion, the resulting propulsive force can effectively prevent material from accumulating and clogging at the discharge port. The material at the discharge port is cleared from multiple angles and directions. The spiral up and down movement of this invention allows the first and second stirring elements to stir the material in multiple directions, greatly improving the stirring effect and ensuring that petroleum coke will not clog during the discharge process, thus ensuring the stable operation of the entire petroleum coke processing unit.

[0022] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a petroleum coke processing device for prebaked anodes according to one technical solution of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a petroleum coke processing device for prebaked anodes as described in another technical solution of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1-Tank type calcining furnace body; 11-Feeding port; 12-Discharge port; 13-Guide plate; 2-Discharge chamber; 3-Sleeve; 31-First connecting rod; 4-Rotating rod; 5-First stirring component; 61-Second stirring rod; 62-Second stirring blade; 63-Spring; 64-Scraper; 7-Cylinder; 71-Second connecting rod. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0027] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0028] It should be noted that, unless otherwise specified, the experimental methods described in the following implementation plan are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified.

[0029] In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] like Figures 1-2 As shown, this utility model provides a petroleum coke processing device for prebaked anodes, including a tank-type calcining furnace body 1, which has a feeding port 11 at the top and a discharge port 12 at the bottom. The discharge port 12 is connected to a discharge chamber 2 at the bottom, which is a cylindrical structure with open ends. The processing device also includes a clearing mechanism, which includes:

[0031] A sleeve 3 is coaxially disposed within the discharge cavity 2; the sleeve 3 is connected to the inner wall of the discharge cavity 2 via a first connecting rod 31.

[0032] Rotating rod 4 is coaxially disposed in the discharge chamber 2, and the top of the rotating rod 4 spirally rotates through the sleeve 3 and extends into the discharge port 12;

[0033] The first stirring element 5 is disposed on the rotating rod 4 and located above the sleeve 3;

[0034] The second stirring component is disposed on the rotating rod 4 and located below the sleeve 3;

[0035] The telescopic mechanism extends and retracts in the vertical direction, and the output end of the telescopic mechanism is connected to the bottom of the rotating rod 4.

[0036] In the above technical solution, the present invention provides a petroleum coke processing device for prebaked anodes. The core of the device is a tank-type calcining furnace body 1, with a feeding port 11 at the top to allow the petroleum coke raw material to enter smoothly; and a discharge port 12 at the bottom for outputting the processed material.

[0037] The bottom of the discharge port 12 is connected to the discharge chamber 2. The discharge chamber 2 not only serves as a transition and buffer but also plays a crucial role in dispersing and cooling the petroleum coke. In actual production, the discharge port 12 is prone to clogging, affecting production efficiency, and the existing stirring mechanism also has an unsatisfactory stirring effect.

[0038] To address this, the processing device is equipped with a clearing mechanism. The sleeve 3 is coaxially positioned within the discharge chamber 2 and connected to the inner wall of the discharge chamber 2 via a first connecting rod 31, ensuring positional stability and assisting in flow guidance. The sleeve 3 is ingeniously designed, allowing the rotating rod 4 to move linearly while simultaneously rotating around its own axis, thus achieving a spiral up-and-down movement. The top of the rotating rod 4 spirals through the sleeve 3, extending to the discharge port 12. When the rotating rod 4 moves spirally up and down, the resulting propulsive force effectively prevents material accumulation and blockage at the discharge port 12, clearing the material at the discharge port 12 from multiple angles and directions.

[0039] A first agitator 5 is installed above the sleeve 3 on the rotating rod 4. This agitator breaks up any clumps near the discharge port 12, facilitating the material's entry into the discharge chamber 2. As the material enters the discharge chamber 2, it undergoes initial dispersal through collisions and friction between particles during its descent. Simultaneously, cooling pipes are installed on the outer wall of the discharge chamber 2, through which coolant is circulated to remove heat from the petroleum coke, thus achieving cooling. At the same time, a second agitator is installed below the sleeve 3, working in conjunction with the first agitator 5 to further agitate the material within the discharge chamber 2. This agitation focuses on dispersion and mixing, preventing localized blockages and further dispersing the petroleum coke, ensuring the material is discharged at a suitable temperature and in a dispersed state.

[0040] In addition, the unblocking mechanism also has a vertically extending telescopic mechanism. Its output end is connected to the bottom of the rotating rod 4. When the telescopic mechanism is activated, its output end will extend or retract vertically, thereby driving the rotating rod 4 to move up and down. With the design of the sleeve and the rotating rod being connected by a helical rotation, the rotating rod 4 not only moves up and down, but also rotates due to its engagement with the thread (thread groove) of the sleeve 3, achieving a helical up and down movement. This helical up and down movement allows the first agitator 5 and the second agitator to agitate the material in multiple directions, greatly improving the agitation effect, ensuring that the petroleum coke will not be blocked during the discharge process, and guaranteeing the stable operation of the entire petroleum coke processing unit.

[0041] In another technical solution, the petroleum coke processing device for prebaked anodes further includes a guide plate 13, which is a frustum structure with a larger upper part and a smaller lower part. The top of the guide plate 13 is sealed to the inner wall of the tank-type calcining furnace body 1, and the bottom is sealed to the inner wall of the discharge port 12.

[0042] In the above technical solution, the guide plate 13 adopts a frustum-shaped structure that is larger at the top and smaller at the bottom. This structure can well adapt to the spatial changes from the inside of the tank-type calcining furnace body 1 to the discharge port 12. The tank-type calcining furnace body 1 typically has a large interior space to accommodate a large amount of petroleum coke for calcination, while the discharge port 12 is relatively small to control the speed and flow rate of material discharge. The main function of the guide plate 13 is to better guide and transport the material inside the tank-type calcining furnace body 1 to the discharge port 12. The inclined surface of the guide plate 13 provides a smooth flow channel for the material, reducing friction and resistance between materials, allowing the material to flow more smoothly. Effectively guiding and transporting the material inside the tank-type calcining furnace body 1 to the discharge port 12 improves the efficiency and quality of material transportation, avoids material accumulation and blockage, and provides a strong guarantee for the stable operation and efficient production of the petroleum coke treatment unit for prebaked anodes.

[0043] In another technical solution, the petroleum coke processing device for prebaked anodes includes a first stirring element 5 comprising a plurality of first stirring rods spaced apart on the rotating rod 4. The lower end of each first stirring rod is connected to the rotating rod 4, and the upper end extends outward and upward at an angle. Each first stirring rod is provided with a plurality of first stirring blades spaced apart. The first stirring element is used to agitate the discharge port. By setting the first stirring rods to be inclined upward and providing a plurality of first stirring blades on the first stirring rods, the material can be better agitated and dispersed, preventing material accumulation at the discharge port.

[0044] In another technical solution, the petroleum coke treatment device for prebaked anodes includes a plurality of second stirring rods 61 staggered on the rotating rod. Each second stirring rod 61 is horizontally arranged, and a plurality of second stirring blades 62 are spaced apart on the second stirring rod 61. Each second stirring blade 62 is slidably connected to the corresponding second stirring rod 61 along the axial direction of the second stirring rod 61, and any two adjacent second stirring blades 61 are connected by a spring 63.

[0045] In the above technical solution, the second stirring component includes multiple second stirring rods, and multiple second stirring blades are slidably sleeved on each second stirring rod. Adjacent second stirring blades are connected by springs. During the process of the second stirring rod moving up and down with the rotating rod, the second stirring blades move back and forth radially on the second stirring rod, which can better disperse the material.

[0046] In another technical solution, the petroleum coke treatment device for prebaked anodes is provided with a scraper 64 at one end of each second stirring rod 61, which contacts the inner wall of the discharge chamber 2. The free end of the second stirring rod (the end away from the rotating rod) is provided with a scraper that contacts the inner wall of the discharge chamber, which can scrape and clean the material adhering to the inner wall of the discharge chamber, preventing the material from adhering to the inner wall of the discharge chamber and affecting the discharge rate.

[0047] In another technical solution, the petroleum coke processing device for prebaked anodes has a hollow sidewall for the discharge chamber 2, and a spiral condenser tube is installed inside the sidewall of the discharge chamber 2. The condenser tube inside the discharge chamber cools the downwardly conveyed material.

[0048] In another technical solution, the petroleum coke processing device for prebaked anodes has a rhomboid structure for each second stirring blade 62. The rhomboid structure of the second stirring blades allows for further cutting of the material, improving the material dispersion effect, and thus increasing the efficiency of material cooling and downward conveying.

[0049] In another technical solution, the petroleum coke processing device for prebaked anodes has a spiral groove on the inner wall of the sleeve 3, and a slider on one side of the rotating rod 4, which slides within the spiral groove. The length of the sleeve is set to be not less than the maximum distance the rotating rod can move upward or downward. Driven by the telescopic mechanism, the rotating rod reciprocates vertically. Due to the cooperation between the slider and the spiral groove, the up-and-down movement of the rotating rod drives the slider to move up and down. The slider moves up and down along the trajectory of the spiral groove, thereby causing the rotating rod to rotate around its own axis while moving vertically.

[0050] In another technical solution, the petroleum coke processing device for prebaked anodes includes a telescopic mechanism comprising a cylinder 7 fixed to the outer wall of the discharge chamber 2, whose piston rod is connected to the bottom of the rotating rod 4 via an L-shaped second connecting rod 71. The main body of the telescopic mechanism is located on the outer wall of the discharge chamber. The piston rod of the telescopic mechanism extends vertically downward and is connected to the bottom of the rotating rod 4 via the L-shaped second connecting rod. The second connecting rod and the bottom of the rotating rod are rotatably connected via a bearing, so that the telescopic mechanism drives the rotating rod to move vertically without interfering with the rotation of the rotating rod around its own axis. The telescopic mechanism reciprocates, causing the rotating rod to move vertically up and down reciprocally.

[0051] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0052] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A petroleum coke treatment device for prebaked anodes, comprising a tank calciner body, a feeding port is arranged at the top of the tank calciner body, and a discharging port is arranged at the bottom of the tank calciner body, a discharging cavity is connected to the bottom of the discharging port, characterized in that, The processing device further includes a dredging mechanism, which comprises: A sleeve is coaxially disposed within the discharge cavity; the sleeve is connected to the inner wall of the discharge cavity via a first connecting rod. A rotating rod is coaxially disposed in the discharge chamber, and the top of the rotating rod spirally rotates through the sleeve and extends into the discharge port; The first stirring component is disposed on the rotating rod and located above the sleeve; The second stirring component is disposed on the rotating rod and located below the sleeve; A telescopic mechanism that extends and retracts in the vertical direction, the output end of which is connected to the bottom of the rotating rod.

2. The petroleum coke handling apparatus for prebaked anodes as claimed in claim 1, characterized in that, The processing device also includes a guide plate, which is a frustum structure with a larger upper part and a smaller lower part. The top of the guide plate is sealed to the inner wall of the calcining furnace body, and the bottom is sealed to the inner wall of the discharge port.

3. The petroleum coke processing apparatus for prebaked anodes as described in claim 2, characterized in that, The first stirring component includes a plurality of first stirring rods spaced apart on the rotating rod. The lower end of each first stirring rod is connected to the rotating rod, and the upper end extends outward and upward at an angle. Each first stirring rod is provided with a plurality of first stirring blades spaced apart.

4. The petroleum coke handling apparatus for prebaked anodes as claimed in claim 3, characterized in that, The second stirring component includes a plurality of second stirring rods staggered on the rotating rod. Each second stirring rod is horizontally arranged, and a plurality of second stirring blades are spaced apart on the second stirring rod. Each second stirring blade is slidably connected to the corresponding second stirring rod along the axial direction of the second stirring rod, and any two adjacent second stirring blades are connected by a spring.

5. The petroleum coke handling apparatus for prebaked anodes as claimed in claim 4, characterized in that, Each of the second stirring rods has a scraper at one end, which contacts the inner wall of the discharge chamber.

6. The petroleum coke handling apparatus for prebaked anodes as claimed in claim 5, characterized in that, The sidewall of the discharge chamber is hollow, and a spiral condenser tube is provided inside the sidewall of the discharge chamber.

7. The petroleum coke handling apparatus for prebaked anodes as claimed in claim 4, characterized in that, Each second stirring blade has a rhomboid structure.

8. The petroleum coke handling apparatus for prebaked anodes as claimed in claim 1, characterized in that, The inner wall of the sleeve is provided with a spiral groove, and a slider is provided on one side of the rotating rod, which slides within the spiral groove.

9. The petroleum coke handling apparatus for prebaked anodes as claimed in claim 8, characterized in that, The telescopic mechanism includes a cylinder fixed to the outer wall of the discharge chamber, and its piston rod is connected to the bottom of the rotating rod through an L-shaped second connecting rod.

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