Vibrating feeder and material conveying system

Abstract

The utility model discloses a vibration feeder and a material conveying system. The system comprises an ash bin, a vibration feeder and a material conveying device, an inlet of the dust removal pipeline is connected with an outlet of the ash bin; the temperature detection device is arranged on the dust removal pipeline; and the controller is electrically connected with the temperature detection device. The vibrating feeder solves the technical problem that the operating stability of the vibrating feeder is low.

Description

Technical Field

[0001] This utility model belongs to the field of temperature detection technology, and in particular relates to a vibrating feeder and a material conveying system. Background Technology

[0002] After the coke is cooled using the dry quenching process, it needs to be discharged through the vibrating feeder of the discharge device in the dry quenching system. The specific process is as follows: by adjusting the current output of the electromagnetic coil of the vibrating feeder, the amplitude of the vibrating feeder chute is linearly adjusted, thereby controlling the continuous discharge of coke, which is then transported to the user via a rotary sealing valve and belt conveyor. During continuous vibrating coke discharge, a large amount of high-temperature dust is generated inside the vibrating feeder. This dust, along with the circulating gas, accumulates in the ash hopper at the bottom of the vibrating feeder and is then sent to the environmental dust removal system for dust removal through the ash discharge ball valve and dust collection pipe. Occasionally, during this continuous production process, coke may fall from the vibrating feeder chute into the ash hopper and become stuck at the ash discharge ball valve, preventing the normal discharge of high-temperature dust.

[0003] If the blockage of the ash discharge ball valve is not detected in time, the ash hopper will fill with ash, and continuous vibration will cause the ash to become increasingly compacted, eventually leading to the chute of the vibrating feeder getting stuck. This prevents the feeder from reaching the specified amplitude, causing an abnormal increase in the current of the feeder's electromagnetic coil, potentially leading to overcurrent and burnout. The vibrating feeder will then be unable to operate stably, forcing the dry quenching system to shut down. Replacing the electromagnetic coil of the vibrating feeder takes 10 to 20 hours, incurring significant costs for spare parts and emergency repairs, impacting coke ovens, chemical production, and ironmaking, resulting in incalculable losses. Therefore, the low operational stability of the vibrating feeder is a technical problem that urgently needs to be solved. Utility Model Content

[0004] This utility model provides a vibrating feeder and a material conveying system, which solves the technical problem of low operational stability of the vibrating feeder.

[0005] In a first aspect, this utility model provides a vibrating feeder, comprising: an ash hopper; a dust removal pipe, the inlet of which is connected to the outlet of the ash hopper; a temperature detection device disposed on the dust removal pipe; and a controller electrically connected to the temperature detection device.

[0006] In conjunction with the first aspect of this utility model, in some embodiments, it further includes: an ash discharge ball valve disposed inside the dust removal pipeline; the number of the temperature detection device is one, and it is disposed in an upstream sub-pipeline or a downstream sub-pipeline of the dust removal pipeline, wherein the upstream sub-pipeline is the dust removal pipeline before the inlet of the ash discharge ball valve, and the downstream sub-pipeline is the dust removal pipeline after the outlet of the ash discharge ball valve.

[0007] In conjunction with the first aspect of this utility model, in some embodiments, it further includes: an ash discharge ball valve disposed inside the dust removal pipeline; the number of temperature detection devices is multiple, and they are disposed in the upstream sub-pipeline and / or downstream sub-pipeline of the dust removal pipeline, wherein the upstream sub-pipeline is the dust removal pipeline before the inlet of the ash discharge ball valve, and the downstream sub-pipeline is the dust removal pipeline after the outlet of the ash discharge ball valve.

[0008] In conjunction with the first aspect of this utility model, in some embodiments, the temperature detection device includes: a first temperature detection sub-device and a second temperature detection sub-device, the first temperature detection sub-device and the second temperature detection sub-device being symmetrically arranged on the upstream sub-pipeline, and the first temperature detection sub-device and the second temperature detection sub-device being equidistant from the outlet of the ash silo.

[0009] In conjunction with the first aspect of this utility model, in some embodiments, the temperature detection device includes a probe-type resistance temperature detector (RTD), which is attached to the dust removal pipe.

[0010] In conjunction with the first aspect of this utility model, in some embodiments, the temperature detection device is bundled and installed on the outside of the dust removal duct.

[0011] In conjunction with the first aspect of this utility model, in some embodiments, it further includes: a display electrically connected to the controller.

[0012] In conjunction with the first aspect of this utility model, in some embodiments, it further includes: an alarm device electrically connected to the controller.

[0013] In conjunction with the first aspect of this utility model, in some embodiments, the alarm device is a signal light and / or a buzzer.

[0014] Secondly, embodiments of the present invention provide a material transport system, including the vibrating feeder described in any one of the first aspects.

[0015] The present invention provides one or more technical solutions that achieve at least the following technical effects or advantages:

[0016] This utility model provides a vibrating feeder comprising: an ash hopper; a dust collection pipe, the inlet of which is connected to the outlet of the ash hopper; a temperature detection device mounted on the dust collection pipe; and a controller electrically connected to the temperature detection device. When high-temperature dust is being discharged normally, the temperature of the dust collection pipe remains within a relatively high range. When high-temperature dust cannot be discharged normally, the temperature of the high-temperature dust retained inside the ash hopper gradually decreases, causing the temperature of the dust collection pipe to gradually decrease as well. Therefore, by installing a temperature detection device on the dust collection pipe, the detected temperature is the temperature of the dust collection pipe, which can be used to characterize whether high-temperature dust can be discharged normally. If the detected temperature indicates that high-temperature dust cannot be discharged normally, personnel can perform timely maintenance, preventing ash accumulation in the ash hopper due to the inability to discharge high-temperature dust normally, thus avoiding damage to the electromagnetic coil. Therefore, the operational stability of the vibrating feeder is improved. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the vibrating feeder in an embodiment of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0021] refer to Figure 1 As shown, Figure 1This is a schematic diagram of the vibrating feeder in this embodiment of the invention. After the coke 50 is cooled using the dry quenching process, it needs to be discharged through the vibrating feeder of the discharge device in the dry quenching system. The specific process is as follows: by adjusting the current output of the electromagnetic coil 60 of the vibrating feeder, the amplitude of the chute 70 of the vibrating feeder is linearly adjusted, thereby controlling the continuous discharge of coke 50, which is then transported to the user via a rotary sealing valve and belt conveyor 80. During continuous vibrating coke discharge, a large amount of high-temperature dust is generated inside the vibrating feeder, which, along with the circulating gas (approximately 120°C), collects at the ash hopper 10 at the bottom of the vibrating feeder. This dust is then sent to the environmental dust removal system for dust removal via the ash discharge ball valve 40 and dust removal pipe 20. Occasionally, during this continuous production process, coke 50 may fall from the chute 70 of the vibrating feeder into the ash hopper 10, becoming stuck at the ash discharge ball valve 40, preventing the normal discharge of high-temperature dust. If the blockage of the ash discharge ball valve 40 is not detected in time, the ash silo 10 will be filled with ash, and continuous vibration will cause the ash to become increasingly dense, eventually leading to the chute 70 of the vibrating feeder getting stuck, failing to reach the specified amplitude, causing the current in the electromagnetic coil 60 of the vibrating feeder to rise abnormally, or even burn out due to overcurrent. The vibrating feeder will then be unable to operate stably, forcing the dry quenching system to shut down. Each emergency repair to replace the electromagnetic coil 60 takes 10 to 20 hours. A single 10 to 20-hour downtime results in losses of 50,000 to 100,000 yuan in spare parts costs, repair and maintenance costs, and various energy consumption costs (including ventilation, water, electricity, etc.). Simultaneously, reduced power generation results in losses of approximately 200,000 yuan, impacting coke ovens, chemical products, and ironmaking, with losses difficult to calculate. Therefore, whether the ash discharge from the ash silo 10 is normal and whether the ash discharge ball valve 40 is blocked have become key points of daily inspection work, requiring at least two inspections per shift, increasing the workload of employees. Therefore, the low operational stability of the vibrating feeder is a technical problem that urgently needs to be solved. To solve this problem, this utility model embodiment provides a vibrating feeder, as follows:

[0022] refer to Figure 1 As shown in the figure, a vibrating feeder provided in this embodiment of the present invention includes: an ash hopper 10; a dust removal pipe 20, the inlet of which is connected to the outlet of the ash hopper 10; a temperature detection device 30, which is installed on the dust removal pipe 20; and a controller, which is electrically connected to the temperature detection device 30.

[0023] It should be noted that when high-temperature dust is being discharged normally, the temperature of the dust collection pipe 20 will remain within a relatively high range. When the high-temperature dust cannot be discharged normally, the temperature of the high-temperature dust retained inside the ash hopper 10 will gradually decrease, causing the temperature of the dust collection pipe 20 to gradually decrease as well. Therefore, a temperature detection device 30 is installed on the dust collection pipe 20. The temperature detected by the temperature detection device 30 is the temperature of the dust collection pipe 20, and this temperature can be used to characterize whether the high-temperature dust can be discharged normally.

[0024] In some embodiments, the vibrating feeder may further include: an ash discharge ball valve 40 disposed inside the dust removal pipe 20; and a temperature detection device 30, which is one in number and disposed in the upstream sub-pipe 210 or the downstream sub-pipe 220 of the dust removal pipe 20, wherein the upstream sub-pipe 210 is the dust removal pipe 20 before the inlet of the ash discharge ball valve 40, and the downstream sub-pipe 220 is the dust removal pipe 20 after the outlet of the ash discharge ball valve 40.

[0025] In some embodiments, the vibrating feeder may further include: an ash discharge ball valve 40 disposed inside the dust removal pipe 20; and multiple temperature detection devices 30 disposed in the upstream sub-pipe 210 and / or downstream sub-pipe 220 of the dust removal pipe 20, wherein the upstream sub-pipe 210 is the dust removal pipe 20 before the inlet of the ash discharge ball valve 40, and the downstream sub-pipe 220 is the dust removal pipe 20 after the outlet of the ash discharge ball valve 40.

[0026] It should be noted that when there are multiple temperature detection devices 30, there are three ways to set up the temperature detection devices 30: First, all temperature detection devices 30 are set up in the upstream sub-pipe 210; second, all temperature detection devices 30 are set up in the downstream sub-pipe 220; third, some of the temperature detection devices 30 are set up in the upstream sub-pipe 210 and the other part is set up in the downstream sub-pipe 220.

[0027] In some embodiments, the temperature detection device 30 may include a first temperature detection sub-device and a second temperature detection sub-device, which are symmetrically arranged on the upstream sub-pipe 210 and are equidistant from the outlet of the ash silo 10.

[0028] In some embodiments, the controller is further configured to: acquire a first detection sub-temperature from a first temperature detection sub-device, and acquire a second detection sub-temperature from a second temperature detection sub-device; if the temperature deviation between the first detection sub-temperature and the second detection sub-temperature is less than a preset deviation threshold, use the average of the first detection sub-temperature and the second detection sub-temperature as the detection temperature; if the temperature deviation between the first detection sub-temperature and the second detection sub-temperature is greater than or equal to the preset deviation threshold, control the display to show a first alarm message, the first alarm message being used to indicate that the temperature detection device 30 has a malfunction.

[0029] It should be noted that if only a single temperature detection device 30 is installed, false alarms may occur in the event of a malfunction, affecting the accurate judgment of the personnel and reducing work efficiency. Therefore, this embodiment of the utility model limits the temperature detection device 30 to include a first temperature detection sub-device and a second temperature detection sub-device. Based on the aforementioned placement of the first and second temperature detection sub-devices, it can be known that theoretically, the detected sub-temperatures of the first and second temperature detection sub-devices should be close. If the detected sub-temperatures are not close, an alarm will be triggered to indicate a malfunction in the temperature detection device 30, thus avoiding false alarms and improving work efficiency. Furthermore, by setting a preset deviation threshold, the calculation of the detected temperature based on erroneous data is avoided, thereby improving the accuracy of temperature acquisition. Simultaneously, calculating the detected temperature based on the average value of the detected sub-temperatures also improves the accuracy of temperature acquisition. Since the detected temperature can be used to characterize whether high-temperature dust can be discharged normally, the accuracy of detecting whether high-temperature dust can be discharged normally is improved.

[0030] In some embodiments, the temperature detection device 30 includes a probe-type resistance temperature detector (RTD) that is attached to the dust removal duct 20.

[0031] It should be noted that the probe-type RTD is waterproof and dustproof. The protective sleeve of this type of RTD is of moderate thickness, making it suitable for use in environments requiring sensitive response and free from friction or erosion. The waterproof and dustproof design of the probe-type RTD also helps to withstand high dust concentrations, preventing damage to the temperature detection device due to harsh environments and thus improving the reliability of the obtained temperature.

[0032] In some embodiments, the temperature detection device 30 is mounted on the outside of the dust removal duct 20.

[0033] It should be noted that probe-type RTDs do not have a junction box at the head; they are installed by binding on-site for better contact with piping and equipment. The RTD remains stationary relative to the piping, avoiding probe damage and loosening of terminals caused by relative vibration. The close-fitting binding installation saves installation space and facilitates monitoring of the actual ash discharge temperature, which is normally around 100℃.

[0034] In some implementations, the vibrating feeder may also include a display electrically connected to the controller.

[0035] In some embodiments, the controller is further configured to: acquire the detected temperature from the temperature detection device 30; and control the display to display the detected temperature. Specifically, controlling the display to display the detected temperature may involve: if the detected temperature is less than a preset temperature threshold, controlling the display to display a second alarm message, which indicates that high-temperature dust cannot be properly discharged; and if the detected temperature is greater than or equal to the preset temperature threshold, controlling the display to show the detected temperature.

[0036] It should be noted that the preset temperature threshold can be 80℃.

[0037] It should be noted that the monitor settings allow staff to easily obtain information on whether high-temperature dust can be discharged normally, thus improving work efficiency.

[0038] In some implementations, the vibrating feeder may also include an alarm device electrically connected to the controller.

[0039] In some embodiments, the controller is further configured to: acquire the detected temperature from the temperature detection device 30; and control the alarm device based on the detected temperature. Specifically, controlling the alarm device based on the detected temperature includes: controlling the alarm device to sound an alarm if the detected temperature is lower than a preset temperature threshold.

[0040] In some implementations, the alarm device is a signal light and / or a buzzer.

[0041] It should be noted that if high-temperature dust cannot be discharged normally, the personnel may not notice it in time. If the blockage of the ash discharge ball valve 40 is not detected in time, the ash hopper 10 will be filled with ash, and the continuous vibration will cause the ash to become increasingly dense, eventually causing the chute 70 of the vibrating feeder to get stuck, failing to reach the specified amplitude. This will cause the current of the electromagnetic coil 60 of the vibrating feeder to rise abnormally, or even burn out due to overcurrent. The vibrating feeder will not be able to operate stably, and the dry quenching system will be forced to shut down. Therefore, this utility model embodiment, by setting up an alarm device, can promptly alert the personnel, preventing them from failing to notice the situation where high-temperature dust cannot be discharged normally. This allows for timely maintenance and avoids the chute 70 of the vibrating feeder from getting stuck due to the ash hopper 10 being filled with ash, thus preventing the electromagnetic coil 60 from rising abnormal current and burning out due to overcurrent. Therefore, it reduces the possibility of damage to the electromagnetic coil 60.

[0042] It should be noted that the ash silo 10 is cone-shaped and can be made of Q235 material. Both the inlet and outlet are equipped with installation flanges, and the interior is lined with wear-resistant materials such as high-chromium cast iron plates or cast stone bricks. The cone outlet is a high-chromium bimetallic seamless pipe with a nominal diameter between DN65 and DN100, used to prevent excessive gas leakage from the dry quenching furnace, which would increase energy consumption. The ash discharge ball valve 40 can be a Q41TC-16C model, installed on the outlet flange of the ash silo 10. Depending on actual needs, one or two ash discharge ball valves 40 can be installed on the pipeline for easy control and maintenance. The temperature detection device 30 is installed below the enclosed vibrating feeder ash silo 10. By monitoring temperature changes, it can monitor in real time whether ash discharge is normal and whether there is any blockage. It also has a long service life, requires no maintenance, poses no safety or environmental risks, reduces frequent inspections by employees, and reduces labor intensity.

[0043] This utility model provides a vibrating feeder comprising: an ash hopper 10; a dust collection pipe 20, the inlet of which is connected to the outlet of the ash hopper 10; a temperature detection device 30 mounted on the dust collection pipe 20; and a controller electrically connected to the temperature detection device 30. When high-temperature dust is being discharged normally, the temperature of the dust collection pipe 20 will remain within a relatively high temperature range. When high-temperature dust cannot be discharged normally, the temperature of the high-temperature dust retained inside the ash hopper 10 will gradually decrease, causing the temperature of the dust collection pipe 20 to gradually decrease as well. Therefore, the temperature detection device 30 is installed on the dust collection pipe 20. The temperature detected by the temperature detection device 30 is the temperature of the dust collection pipe 20, and this temperature can be used to characterize whether the high-temperature dust can be discharged normally. If the detected temperature indicates that the high-temperature dust cannot be discharged normally, the operator can perform timely maintenance, preventing ash accumulation in the ash hopper 10 due to the inability to discharge high-temperature dust normally, thus preventing damage to the electromagnetic coil 60. Therefore, the operational stability of the vibrating feeder is improved.

[0044] Based on the same inventive concept, this utility model provides a material transport system, including a vibrating feeder of any of the above embodiments.

[0045] It should be understood that further implementation details of the material transport system in this utility model embodiment are as described above for the vibrating feeder, and will not be repeated here for the sake of brevity.

[0046] The above description is merely an embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A vibrating feeder, characterized in that, include: Gray warehouse; A dust removal duct, the inlet of which is connected to the outlet of the ash silo; A temperature detection device is installed on the dust removal duct; The controller is electrically connected to the temperature detection device.

2. The vibrating feeder according to claim 1, characterized in that, Also includes: An ash discharge ball valve is installed inside the dust removal pipeline; The number of temperature detection devices is one, and it is installed in the upstream sub-pipe or the downstream sub-pipe of the dust removal pipeline. The upstream sub-pipe is the dust removal pipeline before the inlet of the ash discharge ball valve, and the downstream sub-pipe is the dust removal pipeline after the outlet of the ash discharge ball valve.

3. The vibrating feeder according to claim 1, characterized in that, Also includes: An ash discharge ball valve is installed inside the dust removal pipeline; The number of temperature detection devices is multiple, and they are installed in the upstream sub-pipe and / or downstream sub-pipe of the dust removal pipeline. The upstream sub-pipe is the dust removal pipeline before the inlet of the ash discharge ball valve, and the downstream sub-pipe is the dust removal pipeline after the outlet of the ash discharge ball valve.

4. The vibrating feeder according to claim 3, characterized in that, include: The temperature detection device includes a first temperature detection sub-device and a second temperature detection sub-device, which are symmetrically arranged on the upstream sub-pipeline. The first temperature detection sub-device and the second temperature detection sub-device are equidistant from the outlet of the ash silo.

5. The vibrating feeder according to claim 1, characterized in that, The temperature detection device includes a probe-type resistance temperature detector (RTD), which is attached to the dust removal pipe.

6. The vibrating feeder according to any one of claims 1-5, characterized in that, The temperature detection device is bundled and installed on the outside of the dust removal duct.

7. The vibrating feeder according to claim 1, characterized in that, Also includes: The display is electrically connected to the controller.

8. The vibrating feeder according to claim 1, characterized in that, Also includes: An alarm device is electrically connected to the controller.

9. The vibrating feeder according to claim 8, characterized in that, The alarm device is a signal light and / or a buzzer.

10. A material transport system, characterized in that, The vibratory feeder included in any one of claims 1-9.

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