Prebaked anode production material conveyor and control method

Abstract

The invention discloses a prebaked anode production material conveyor and a control method, and relates to the technical field of prebaked anode production, the prebaked anode production material conveyor comprises a conveyor main body, and the conveyor main body comprises an inner-layer conveying pipe and an outer-layer cooling jacketed pipe coaxially arranged outside the inner-layer conveying pipe; an electromagnetic vibration exciter; the electromagnetic vibration exciter is arranged below the conveyor body and fixedly connected with the inner-layer conveying pipe through a rigid connecting piece, and the feeding module and the discharging module are located at the starting end and the tail end of the conveyor body respectively. The material characteristic identification sensor group is arranged in the feeding module; and the central control system is electrically connected with the material characteristic identification sensor group and the electromagnetic vibration exciter. Safety and environmental protection are guaranteed through a full-sealing structure and an active heat dissipation technology, efficient and general conveying of multi-form materials is achieved through material recognition and self-adaptive vibration control, and continuity and reliability of production are guaranteed in combination with an online self-cleaning system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prebaked anode production, in particular to a prebaked anode production material conveyor and control method. BACKGROUND

[0002] As a key consumable material in the production process of the electrolytic aluminum industry, the prebaked anode covers the complex processing and conveying of various forms of solid materials such as petroleum coke and pitch coke under high temperature conditions. In the traditional production process, an open belt conveyor or a conventional screw conveyor is usually used to complete this task. However, the physical and chemical properties of these materials are extremely special, with temperatures often reaching 800 to 1,000 degrees Celsius, and emitting corrosive gases containing pitch and other components at high temperatures, accompanied by the generation of a large amount of dust. This extreme working environment poses extremely stringent requirements on material conveying equipment, and existing conventional equipment is not up to the task in dealing with such working conditions, making it difficult to meet the comprehensive requirements of modern industrial production for environmental protection, safety, and efficiency.

[0003] The existing technical solutions have many fundamental defects that are difficult to overcome when dealing with the above-mentioned working conditions. First, in terms of environment and safety, the traditional equipment generally has poor sealing performance, which cannot effectively prevent the leakage of high-temperature dust and toxic and harmful gases (such as pitch volatiles), not only causing serious secondary pollution to the workshop environment, but also directly threatening the health of the on-site operators, bringing great risks of burns and inhalation respiratory damage. Secondly, in terms of equipment efficiency and operational reliability, the continuous action of high-temperature materials and corrosive gases can rapidly accelerate the aging and damage of core components such as conveyor belts, bearings, and seals, leading to frequent equipment failures, high maintenance workload and costs, and the sticky materials such as pitch are easily adhered to the inner wall of the equipment and gradually accumulated during the conveying process, which not only reduces the conveying efficiency, but also causes pipe blockage, forcing the production line to be interrupted and requiring dangerous and time-consuming manual cleaning operations. Finally, in terms of production adaptability and control accuracy, since prebaked anode production involves materials in different physical forms such as powder and blocks, traditional conveyors are often single-function and difficult to be universal, forcing enterprises to configure multiple sets of special equipment for different materials, which not only increases equipment investment, but also occupies valuable workshop space, and the control accuracy of the material conveying amount is generally not high, making it difficult to meet the requirements of precise batching in subsequent processes. SUMMARY

[0004] The present application aims to provide a prebaked anode production material conveyor and control method that solves the problems in the background art.

[0005] To solve the above technical problems, the present application provides a prebaked anode production material conveying machine, comprising: a conveyor main body, the conveyor main body comprising an inner conveying pipe and an outer cooling jacket pipe coaxially arranged outside the inner conveying pipe; an annular cooling medium flow channel is formed between the inner conveying pipe and the outer cooling jacket pipe; An electromagnetic exciter is arranged below the conveyor main body and is fixedly connected with the inner conveying pipe through a rigid connecting piece. A feeding module is arranged at the starting end of the conveyor main body, and a discharging module is arranged at the terminal end of the conveyor main body; the feeding module and the discharging module are both flexibly sealed with the conveyor main body through a high-temperature-resistant metal corrugated pipe. A material property identification sensor group is arranged inside the feeding module and is used for non-contact detection of the material entering the inner conveying pipe. A central control system is electrically connected with the material property identification sensor group and the electromagnetic exciter.

[0006] Preferably, a ground support and a spring damper are further included; the conveyor main body is installed on the ground support through the spring damper and is used for isolating the vibration generated during the operation of the conveyor main body.

[0007] Preferably, the material property identification sensor group comprises an industrial camera used for identifying the shape of the material and an infrared temperature measuring instrument used for measuring the temperature of the material; the sensor group is installed in a protection box with a compressed air purging function and detects the material through a high-temperature-resistant quartz glass window.

[0008] Preferably, a cooling medium circulating pump is further included; the central control system is further electrically connected with the cooling medium circulating pump and is used for adjusting the circulating flow of the cooling medium in the annular cooling medium flow channel according to the temperature of the material measured by the infrared temperature measuring instrument.

[0009] Preferably, a gas pulse nozzle and an electromagnetic valve are further included; the gas pulse nozzle is tangentially arranged along the pipe wall of the inner conveying pipe; the central control system is further electrically connected with the electromagnetic valve to control the high-pressure gas sprayed by the gas pulse nozzle.

[0010] Preferably, a composite coating with low friction and high hardness is arranged on the inner wall of the inner conveying pipe.

[0011] A prebaked anode production material conveying control method is further provided, comprising: A material identification step: the shape and temperature of the material entering the inner conveying pipe of the conveyor main body are detected by the material property identification sensor group arranged in the feeding module, and the detection data are sent to the central control system. Adaptive conveying step: the central control system controls the electromagnetic vibrator to work at a preset driving frequency and power according to the form of the material, so that the main body of the conveyor generates directional vibration to drive the material to move along the inner conveying pipe; Active cooling step: the central control system controls the flow of the cooling medium circulating pump according to the temperature of the material, so that the cooling medium circulates in the annular cooling medium flow channel formed between the inner conveying pipe and the outer cooling jacket pipe.

[0012] Preferably, in the adaptive conveying step, when the material form is powdery material, the central control system controls the electromagnetic vibrator to work in a high-frequency, low-amplitude mode to make the powdery material flow and slide; when the material form is blocky material, the central control system controls the electromagnetic vibrator to work in a low-frequency, high-amplitude mode to make the blocky material advance in a jumping manner.

[0013] Preferably, it further includes an online self-cleaning step; the central control system monitors the operating parameters during conveying, and when it is judged that there is a risk of adhesion and blockage, it instructs the gas pulse nozzle integrated on the inner wall of the inner conveying pipe to spray high-pressure gas to peel off the material adhering to the inner wall of the inner conveying pipe Compared with the prior art, the present application has the following beneficial effects: By constructing a fully enclosed material channel completely isolated from the external environment, the escape of high-temperature dust and harmful gas is fundamentally eliminated, the working environment is significantly improved, and the health and safety of the operators are ensured. At the same time, the integrated active cooling structure can efficiently remove heat according to the real-time temperature of the material, control the temperature of the key components of the equipment within a safe range, effectively avoid the damage of the equipment caused by continuous high temperature, and significantly prolong the service life of the whole equipment.

[0014] It gives the conveying equipment the ability of intelligent perception and adaptive adjustment. Through non-contact sensors, the central control system can automatically match and execute the optimal conveying strategy by real-time identification of key information such as the form and temperature of the material. Whether it is the flow and sliding of powdery material or the jumping of blocky material, efficient and stable conveying can be achieved, which greatly improves the versatility of a single device for different materials, ensures that all kinds of materials can be conveyed in their most efficient mode, and improves the overall operation efficiency of the production line.

[0015] The core problem of material adhesion is comprehensively considered in the design, a special coating is arranged on the inner wall, and an online self-cleaning system is integrated to cooperate, so that the conveying channel is ensured to be smooth for a long time, the running state can be continuously monitored, the cleaning can be actively and quickly performed in the early stage of the risk of blockage, the whole process does not need to stop, the continuity and stability of production are ensured, the hidden danger of production interruption caused by material adhesion and blockage is eliminated, and the major safety risk of manual cleaning in a high-temperature closed space is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, below will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings. Figure 1 It is a schematic diagram of the overall structure of the conveyor; Figure 2 It is a schematic diagram of the external connection structure of the conveying pipe; Figure 3 It is a schematic diagram of the cross-sectional structure of the conveying pipe; Figure 4 It is a schematic diagram of the structure of the material characteristic identification sensor group; Figure 5 It is a schematic diagram of the structure of the gas pulse nozzle; Figure 6 It is a flowchart of the method in the present application; 100, conveyor main body; 101, inner conveying pipe; 102, outer cooling jacket pipe; 103, annular cooling medium flow channel; 104, electromagnetic exciter; 201, feeding module; 202, discharging module; 300, material characteristic identification sensor group; 301, industrial camera; 302, infrared temperature measuring instrument; 303, protection box; 400, central control system; 501, ground support; 502, spring damper; 6, cooling medium circulating pump; 701, gas pulse nozzle; 702, electromagnetic valve. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] Embodiment 1: Please refer to Figures 1-5The application provides a prebaked anode production material conveying machine, which comprises: A conveying machine body 100; the conveying machine body 100 comprises an inner conveying pipe 101 and an outer cooling jacket pipe 102 coaxially arranged outside the inner conveying pipe 101; an annular cooling medium flow channel 103 is formed between the inner conveying pipe 101 and the outer cooling jacket pipe 102; An electromagnetic exciter 104; the electromagnetic exciter 104 is arranged below the conveying machine body 100 and is fixedly connected with the inner conveying pipe 101 through a rigid connecting piece; A feeding module 201 and a discharging module 202; the feeding module 201 is located at the starting end of the conveying machine body 100, and the discharging module 202 is located at the terminal end of the conveying machine body 100; the feeding module 201 and the discharging module 202 are both flexibly and sealingly connected with the conveying machine body 100 through a high-temperature-resistant metal bellows; A material property identification sensor group 300; the sensor group is arranged inside the feeding module 201 and is used for non-contact detection of the material entering the inner conveying pipe 101; A central control system 400; the central control system 400 is electrically connected with the material property identification sensor group 300 and the electromagnetic exciter 104; In order to solve the technical problems of poor sealing, leakage of high-temperature dust and harmful gas, easy damage of equipment, easy adhesion and blockage of material and poor adaptability to different forms of material of the prebaked anode material conveying equipment in the prior art, a fully-closed conveying system is arranged in the embodiment, so that the material conveying process is completely isolated from the external environment; the core component of the system is the conveying machine body 100, which adopts a double-layer pipe structure, that is, is composed of the inner conveying pipe 101 and the outer cooling jacket pipe 102, and the annular cooling medium flow channel 103 formed between the two is used for active heat dissipation; the electromagnetic exciter 104 serves as a vibration source and directly applies excitation force to the inner conveying pipe 101 through a rigid connecting piece to drive the directional movement of the material in the pipe; the feeding module 201 and the discharging module 202 are arranged at the feeding end and the discharging end of the conveying machine body 100 respectively, and they are flexibly and sealingly connected with the conveying machine body 100 through a high-temperature-resistant metal bellows, so that the thermal expansion of the inner conveying pipe 101 due to high temperature can be compensated and the transmission of vibration to the connected equipment can be isolated; the material property identification sensor group 300 arranged in the feeding module 201 can detect the form and temperature information of the material in real time; the central control system 400 serves as a control core and is electrically connected with the sensor group and the electromagnetic exciter 104, and according to the obtained material information, the conveying process is adaptively adjusted to achieve efficient and stable conveying effect.

[0019] The ground support 501 and the spring damper 502 are further included; the conveyor body 100 is installed on the ground support 501 through the spring damper 502, and is used for isolating the vibration generated when the conveyor body 100 works; In order to prevent the vibration generated when the conveyor body 100 works from being transmitted to the factory floor and structure, and to ensure the stability of the whole equipment operation, in the embodiment, the independent ground support 501 is arranged, and the whole conveyor body 100 is not directly fixed to the ground, but is installed on the ground support 501 through a plurality of spring dampers 502; when the electromagnetic exciter 104 drives the conveyor body 100 to generate high-frequency vibration, the spring damper 502 can absorb and dissipate most of the vibration energy as a vibration isolation element; in the embodiment, by reasonably selecting and arranging the spring dampers 502, more than 95% of the working vibration can be effectively isolated, and the influence of the equipment vibration on the factory structure is avoided, and the operation noise is also reduced.

[0020] The material characteristic identification sensor group 300 includes an industrial camera 301 for identifying the material form and an infrared thermometer 302 for measuring the material temperature; the sensor group is installed in a protection box 303 with a compressed air blowing function, and detects the material through a high-temperature-resistant quartz glass window; In order to realize accurate and reliable detection of the material characteristics in a high-temperature and high-dust environment, the material characteristic identification sensor group 300 is specifically limited in the embodiment; the sensor group is composed of two non-contact sensors: an industrial camera 301 and an infrared thermometer 302; the industrial camera 301 is used to collect image information of the material, and identifies whether the material is blocky or powdery through image analysis; the infrared thermometer 302 is used to measure the surface temperature of the material at a distance; in order to ensure that the sensor works stably for a long time in a harsh working condition of up to 800-1000°C, the whole sensor group is packaged in a specially designed protection box 303; the protection box 303 has a compressed air blowing function, and continuously blows the detection window to prevent dust from adhering; the detection window itself is made of high-temperature-resistant quartz glass, which can withstand high-temperature thermal shock and ensure the effective transmission of the required spectrum of the industrial camera 301 and the infrared thermometer 302, so as to realize clear observation and accurate temperature measurement of the material in the conveying pipe.

[0021] The cooling medium circulating pump 6 is further included; the central control system 400 is further electrically connected with the cooling medium circulating pump 6, and is used for adjusting the circulating flow of the cooling medium in the annular cooling medium flow channel 103 according to the material temperature measured by the infrared thermometer 302; To realize active and controllable cooling of the conveyor main body 100 to cope with the heat load brought by different temperature materials, the embodiment increases the cooling adjustment function; specifically, a cooling medium circulating pump 6 is added, the outlet of the pump is connected with the inlet of the annular cooling medium flow channel 103, and the inlet is connected with the outlet of the flow channel, forming a complete cooling medium circulating loop; the central control system 400 is not only connected with the sensor group and the exciter, but also electrically connected with the frequency converter of the cooling medium circulating pump 6 through a cable; in operation, the material temperature data measured by the infrared thermometer 302 is sent to the central control system 400, and the central control system 400 adjusts the rotating speed of the cooling medium circulating pump 6 in real time according to the preset control logic; for example, when the material temperature is relatively high (such as 950°C), the system instructs the circulating pump to run at high speed to increase the circulating flow of the cooling medium (such as heat-conducting oil or water), and efficiently takes away heat through forced convection heat exchange; when the material temperature is relatively low, the rotating speed of the pump is correspondingly reduced to save energy; this closed-loop control mode ensures that the structure temperature of the conveyor main body 100 is controlled within a safe range.

[0022] It also includes a gas pulse nozzle 701 and a solenoid valve 702; the gas pulse nozzle 701 is arranged tangentially along the pipe wall of the inner layer conveying pipe 101; the central control system 400 is also electrically connected with the solenoid valve 702 to control the gas pulse nozzle 701 to spray high-pressure gas; To solve the technical problem that the sticky material such as asphalt may adhere to the inner wall of the inner layer conveying pipe 101 and cause blockage during conveying, the embodiment adds an online self-cleaning system; the system is composed of multiple gas pulse nozzles 701 and solenoid valves 702 controlled by the central control system 400; these gas pulse nozzles 701 are arranged in zones along the length direction of the inner layer conveying pipe 101, and the axis of each nozzle is arranged tangentially along the pipe wall; the central control system 400 is electrically connected with the solenoid valves 702 controlling these nozzles through a cable; when the central control system 400 judges that there is a risk of adhesion according to the operating parameters (such as abnormal increase of the exciter current), it will instruct one or more solenoid valves 702 in the corresponding area to open instantaneously; after the solenoid valve 702 is opened, high-pressure inert gas (such as nitrogen, pressure 0.6-1.0 MPa) is sprayed from the tangential nozzle, forming a high-speed rotating impact airflow near the pipe wall, which can peel off the adhered material from the pipe wall in a scraping manner, so that it reenters the main flow of the material and is conveyed away, thereby realizing online cleaning without stopping.

[0023] A composite coating with low friction and high hardness is arranged on the inner wall of the inner layer conveying pipe 101; To fundamentally reduce the adhesion tendency of the material to the inner wall of the inner conveying pipe 101 and improve the wear resistance of the conveying pipe, the structure of the inner conveying pipe 101 is improved in the embodiment; specifically, a composite coating is prepared on the inner wall surface of the inner conveying pipe 101 (for example, 316L stainless steel can be selected) as a base material by spraying process; the composite coating has double characteristics: one is very low surface energy and friction coefficient, which makes it difficult for sticky materials (such as pitch coke at high temperature) to infiltrate and firmly adhere to its surface; the second is very high hardness, which can effectively resist the erosion and wear of the pipe wall caused by the material in the vibration conveying process; in a specific implementation, a zirconia-PTFE composite coating can be used, and the thickness can be set to 150 microns. The coating provides a basis for the subsequent gas pulse self-cleaning function and constitutes the first line of defense for passive defense.

[0024] Please refer to Figure 6 The application also provides a pre-baked anode production material conveying control method, comprising: Material identification step: through the material characteristic identification sensor group 300 arranged in the feeding module 201, the shape and temperature of the material entering the inner conveying pipe 101 of the conveyor main body 100 are detected, and the detection data is sent to the central control system 400; Adaptive conveying step: the central control system 400 controls the electromagnetic exciter 104 to work at a preset driving frequency and power according to the shape of the material, so that the conveyor main body 100 generates directional vibration to drive the material to move along the inner conveying pipe 101; Active cooling step: the central control system 400 controls the flow of the cooling medium circulating pump 6 according to the temperature of the material, so that the cooling medium circulates in the annular cooling medium flow channel 103 formed between the inner conveying pipe 101 and the outer cooling jacket pipe 102; The embodiment provides a conveying control method of prebaked anode production material, and the working process is as follows: firstly, a material identification step is performed; when high-temperature material enters the inner conveying pipe 101 from the feeding module 201, the material characteristic identification sensor group 300 (including an industrial camera 301 and an infrared thermometer 302) located at the position carries out non-contact detection on the material, obtains the form (blocky / powdery) and real-time temperature data of the material, and transmits the data to the central control system 400 through an electrical signal; subsequently, the central control system 400 performs a self-adaptive conveying step and an active cooling step in parallel; in the self-adaptive conveying step, the central control system 400 calls corresponding preset parameters from an internal expert database according to the received material form data, outputs a driving signal with specific frequency and power to the electromagnetic exciter 104, so that the conveyor main body 100 generates directional vibration most suitable for conveying the current material; in the active cooling step, the central control system 400 sends a control instruction to the cooling medium circulating pump 6 according to the received material temperature data, adjusts the rotating speed of the cooling medium circulating pump 6 to change the circulating flow of the cooling medium in the annular flow channel, and realizes accurate management of conveying heat.

[0025] In the self-adaptive conveying step, when the material form is powdery material, the central control system 400 controls the electromagnetic exciter 104 to work in a high-frequency and low-amplitude mode, so that the powdery material is conveyed in a flow state; when the material form is blocky material, the central control system 400 controls the electromagnetic exciter 104 to work in a low-frequency and high-amplitude mode, so that the blocky material advances in a jumping manner. In order to realize the most efficient conveying of different forms of material, the embodiment specifically describes the self-adaptive conveying step; the central control system 400 internally stores an expert control model based on the material form; when the material identification step determines that the entered material is powdery material, the central control system 400 controls the electromagnetic exciter 104 to work in a high-frequency and low-amplitude vibration mode; for example, the frequency can be set to 40-50Hz, and the amplitude can be set to 1-2mm; this vibration mode can effectively reduce the internal friction angle between powdery particles, so that the powdery material as a whole presents a state similar to flow state, thereby stably and continuously sliding in the conveying pipe; when the material identification step determines that the entered material is blocky material, the central control system 400 automatically switches and controls the electromagnetic exciter 104 to work in a low-frequency and high-amplitude vibration mode; for example, the frequency can be set to 10-20Hz, and the amplitude can be set to 4-6mm; this vibration mode can give blocky material sufficient throwing acceleration, so that the blocky material stably advances in a series of small parabolic trajectories, that is, in a jumping manner; through the self-adaptive adjustment of the vibration parameters, the single device realizes universal and efficient conveying of different physical characteristic materials.

[0026] Also included is an online self-cleaning step; the central control system 400 monitors operating parameters during the conveying process, and when it determines that there is a risk of adhesion blockage, it instructs the gas pulse nozzle 701 integrated on the wall of the inner conveying pipe 101 to spray high-pressure gas to peel off the material adhering to the inner wall of the inner conveying pipe 101; To ensure the continuity and reliability of the conveying process and prevent unexpected downtime caused by material adhesion, an online self-cleaning step is added in this embodiment; this step is continuously executed by the central control system 400; during the entire conveying process, the central control system 400 monitors operating parameters related to the conveying state in real time in addition to controlling the conveying and cooling, such as the drive current of the electromagnetic vibrator 104; the system has a normal working threshold value of this current set internally; the determination method of the normal working threshold value includes: after the initial operation of the conveyor or after changing the type of conveyed material, the system enters a self-learning mode; in this mode, the system continuously collects the drive current data of the electromagnetic vibrator 104 within the first 5 minutes of stable conveying state, calculates the average value and the standard deviation; the normal working threshold value is set to the average value plus 3 times the standard deviation (μ+3σ); this threshold value is stored in the central control system 400 and can be set and stored according to different material types, and the corresponding threshold value of the type is called after the material identification step for monitoring; when the system detects that the current of a group of vibrators continuously slightly exceeds its threshold value, the system will determine that the early adhesion of the material has occurred in the conveying area corresponding to the vibrator, i.e., there is a risk of blockage; at this time, the central control system 400 immediately triggers the online self-cleaning instruction and sends a signal to the electromagnetic valve 702 of the gas pulse nozzle 701 installed on the wall of the inner conveying pipe 101 in this area, instructing it to instantaneously spray high-pressure gas; the strong tangential gas flow will peel off and remove the adhered material, restoring the operating parameters to normal, thereby actively eliminating potential blockage failures without interrupting the conveying of the material; this step can also be set to trigger preventively at regular intervals.

[0027] Compared with the prior art, the beneficial effects and significant progress of the technical solution are reflected in the following aspects: First, the absolute sealing and efficient heat dissipation of the conveying process are realized, and the environmental protection and safety problems are fundamentally solved. In the prior art, the open or semi-closed conveyor cannot avoid the leakage of dust and harmful gas when handling high-temperature and toxic materials. The present scheme sets a fully-closed conveyor main body 100 composed of an inner conveying pipe 101 and an outer cooling jacket pipe 102, and uses a high-temperature-resistant metal corrugated pipe to flexibly seal and connect at the feeding module 201 and the discharging module 202, thereby constructing a material channel completely isolated from the external environment. This structure eliminates the escape of high-temperature dust, asphalt volatile and other toxic and harmful substances, significantly improves the working environment and protects the occupational health of the operators. At the same time, the annular cooling medium flow channel 103 formed between the inner and outer pipes cooperates with the cooling medium circulating pump 6 to form an active cooling system. The system can automatically adjust the cooling medium flow according to the material temperature detected by the infrared thermometer 302, and the forced convection heat exchange efficiency is much higher than that of the traditional natural air cooling, which can maintain the temperature of the conveyor main body 100 structure within the safety threshold, effectively protecting the key components such as the electromagnetic vibrator 104 and prolonging the service life of the equipment. Second, it has the ability of material self-adaptive conveying and online self-cleaning, which greatly improves the production efficiency and system reliability. The traditional equipment has low efficiency when facing different forms of materials due to fixed parameters, and the sticky materials such as asphalt are easily adhered to the pipe wall, which leads to blockage and shutdown, and frequent manual cleaning is required, which is dangerous and time-consuming. The material characteristic identification sensor group 300 configured in the present scheme can obtain the form and temperature information of the material in real time by using the industrial camera 301 and the infrared thermometer 302. After receiving this information, the central control system 400 will execute the adaptive conveying strategy: when identifying as a powdery material, the electromagnetic vibrator 104 is controlled to work in high-frequency and low-amplitude mode to make the powder flow and slide; when identifying as a blocky material, it is switched to low-frequency and high-amplitude mode to make the blocky material advance in a jumping manner. This intelligent adjustment ensures that all kinds of materials are conveyed in their most efficient mode. In addition, the composite coating on the inner wall of the inner conveying pipe 101 reduces the adhesion of the material, and the online self-cleaning system composed of gas pulse nozzles 701 can instantaneously spray high-pressure gas to strip the adhered material when the risk of blockage is monitored. This series of designs work together to ensure the persistent smoothness of the conveying channel, realize the continuity of production, and eliminate the major safety hazard of manual cleaning in the high-temperature closed space; Third, the universality of a single device and the precise control of the conveying process are realized, and the investment cost and the matching difficulty of subsequent processes are reduced. The prior art route usually needs to configure multiple sets of special conveying equipment for different materials such as powdery and blocky materials, which not only occupies a large amount of workshop space, but also increases the initial investment and maintenance cost. The scheme has high universality because the single device can efficiently handle various materials from powdery to blocky materials by virtue of the self-adaptive conveying control method. Meanwhile, the stable regulation and control of the material conveying amount can be realized by accurately controlling the driving frequency and power of the electromagnetic vibrator 104, and the accuracy is much higher than that of the traditional belt or screw conveyor, which provides a reliable guarantee for the accurate batching of subsequent processes, and further improves the automation level and comprehensive economic benefit of the entire prebaked anode production line.

[0028] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any person skilled in the art can use the disclosed technical content to make changes or modifications to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical solution content of the present application still belongs to the protection scope of the technical solution of the present application.

Claims

1. A material conveyor for prebaked anode production, characterized in that: include: A conveyor body (100), the conveyor body (100) comprising an inner conveying pipe (101) and an outer cooling jacket pipe (102) coaxially arranged outside the inner conveying pipe (101); an annular cooling medium flow channel (103) is formed between the inner conveying pipe (101) and the outer cooling jacket pipe (102); an electromagnetic vibrator (104), the electromagnetic vibrator (104) being arranged below the conveyor body (100) and fixedly connected to the inner conveying pipe (101) via a rigid connector; A feeding module (201) and a discharging module (202); the feeding module (201) is located at the starting end of the conveyor body (100), and the discharging module (202) is located at the end of the conveyor body (100); the feeding module (201) and the discharging module (202) are both flexibly sealedly connected to the conveyor body (100) via a high-temperature resistant metal bellows; a material property identification sensor group (300), the sensor group being arranged inside the feed module (201) and being used for performing non-contact detection on the material entering the inner layer conveying pipe (101); A central control system (400), the central control system (400) being electrically connected to the material property identification sensor group (300) and the electromagnetic exciter (104).

2. A prebaked anode production material conveyor according to claim 1, characterized in that: It also includes a ground bracket (501) and a spring damper (502); the conveyor body (100) is mounted on the ground bracket (501) via the spring damper (502) to isolate vibrations generated when the conveyor body (100) is in operation.

3. The prebaked anode production material conveyor according to claim 1, characterized in that: The material property identification sensor group (300) comprises an industrial camera (301) for identifying the material form and an infrared thermometer (302) for measuring the material temperature; the sensor group is installed in a protective box (303) with a compressed air purge function, and detects the material through a high-temperature resistant quartz glass window.

4. A prebaked anode production material conveyor according to claim 3, characterized in that: It also includes a cooling medium circulation pump (6); the central control system (400) is also electrically connected to the cooling medium circulation pump (6) and is used to adjust the circulation flow rate of the cooling medium in the annular cooling medium flow channel (103) according to the material temperature measured by the infrared thermometer (302).

5. The prebaked anode production material conveyor according to claim 1, characterized in that: It also includes a gas pulse nozzle (701) and a solenoid valve (702); the gas pulse nozzle (701) is arranged tangentially along the wall of the inner layer delivery pipe (101); and the central control system (400) is also electrically connected to the solenoid valve (702) to control the gas pulse nozzle (701) to spray high-pressure gas.

6. The prebaked anode production material conveyor according to claim 1, characterized in that: The inner wall of the inner layer delivery pipe (101) is provided with a composite coating having both low friction and high hardness properties.

7. A method for controlling the conveying of prebaked anode production materials, applied to a prebaked anode production material conveyor according to any one of claims 1 to 6, characterized in that: include: Material identification step: detecting the shape and temperature of the material entering the inner conveying pipe (101) of the conveyor body (100) through the material characteristic identification sensor group (300) provided in the feeding module (201), and sending the detection data to the central control system (400); Adaptive conveying step: the central control system (400) controls the electromagnetic exciter (104) to operate at a preset driving frequency and power according to the shape of the material, so that the conveyor body (100) generates directional vibration to drive the material to move along the inner conveying pipe (101); Active cooling step: The central control system (400) controls the flow rate of the cooling medium circulation pump (6) according to the temperature of the material, so that the cooling medium circulates in the annular cooling medium flow channel (103) formed between the inner layer conveying pipe (101) and the outer layer cooling jacket pipe (102).

8. The method for controlling material delivery in prebaked anode production according to claim 7, characterized in that: In the adaptive conveying step, when the material is in the form of powdery material, the central control system (400) controls the electromagnetic exciter (104) to operate in a high-frequency, low-amplitude mode, so that the powdery material is fluidized and glided; when the material is in the form of bulk material, the central control system (400) controls the electromagnetic exciter (104) to operate in a low-frequency, high-amplitude mode, so that the bulk material advances in a jumping manner.

9. The method for controlling material delivery in prebaked anode production according to claim 7, characterized in that: The method further includes an online self-cleaning step; the central control system (400) monitors operating parameters during the conveying process, and when it is determined that there is a risk of adhesion and blockage, instructs the gas pulse nozzle (701) integrated on the wall of the inner conveying pipe (101) to spray high-pressure gas to peel off the material adhered to the inner wall of the inner conveying pipe (101).

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