JPS6239070Y2 - - Google Patents

Description

[Detailed explanation of the idea]

This invention relates to a cleaning device that removes coal dust, coke powder, and sealing material adhering to the surface of the charging lid of a coke oven. The purpose is to ensure that the lid can be removed reliably. Typically, a coke oven has a large number of carbonization chambers interposed in a combustion chamber arranged in parallel, and coal is sequentially charged into the carbonization chambers to carbonize and produce coke. Coal is charged into the carbonization chamber from a charging car that freely runs on rails installed above the furnace, but when charging, it is necessary to first remove the charging lid installed above the furnace. After the charging is completed, the removed charging lid is attached. As described above, in coke oven operation, the operation of attaching and detaching the charging lid is essential. Traditionally, this type of loading/unloading operation was performed manually by workers on the furnace, but in recent years, mechanization has progressed to reduce the need for manual operations in poor environments or to streamline the work. , and now it has almost become established. The automatic loading and unloading of the charging lid is usually carried out by an electromagnetic loading/unloading device installed on the charging vehicle. In other words, when the charging lid is removed from the carbonization chamber, the loading/unloading device is positioned above it, and the electromagnet installed at the tip is energized by passing a current through it, attracting the charging lid and then raising the loading/unloading device. can be,
In addition, in order to attach the charging lid that has been removed to the charging hole in the carbonization chamber, lower the desorption device, attach the charging lid that is attached to the bottom of the tip of the desorption device to the charging hole, and then demagnetize it. Then, the attachment/detachment device is retreated to a predetermined storage position. For this reason, the surface of the charging lid must always be clean, but due to the poor environment with a lot of dust, foreign substances such as coal dust and coke powder tend to adhere to the surface of the charging lid. In addition, if foreign matter is attached to the charging lid, the charging lid will be attracted to the electromagnet of the attachment/detachment device with the foreign matter present, so the magnetic force will be weakened by the amount of foreign matter, and the charging lid will not open properly. cannot be removed. Furthermore, in recent years, in order to prevent gas from being released into the atmosphere from the gap between the attached charging lid and the carbonization chamber, the gap has been filled with a so-called sealing material made by mixing powdered refractories with water. However, such sealing materials dry up after the moisture evaporates and cannot be easily brushed away like coal dust or coke powder, which also prevents the charging lid from being removed normally. This was a major factor. The present invention has been made to solve the above-mentioned conventional inconveniences, and is to clean the surface of the charging lid so that the charging lid can be properly removed by the electromagnetic charging lid removal device. For the purpose of providing an apparatus, a guide 11 is provided on the machine frame 5 of a charging car 1 in a coke oven, and a drive motor 13 is provided which is regulated by the guide 11 and moves up and down freely.
In addition, a charging lid cleaning rotating member 15 equipped with a scraper 20 at the bottom is connected to the drive motor 13, and a damper opening/closing member attached to the machine frame 5 of the charging vehicle 1 is connected to the drive motor 13. A device for cleaning the surface of a coke oven charging lid, characterized in that the cylinder rod 23 of the cylinder 22 is connected to the cylinder rod 23 of the cylinder 22, so that the raising and lowering of the drive motor 13 is linked with the opening and closing operation of the damper 9. An example of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view of a charging car and a coke oven equipped with the device of the present invention. However, the coke oven is shown in cross-section, and parts of the charging car that are not related to the device of the present invention are omitted. FIG. 2 is a partially enlarged view of the device of the present invention in FIG. 1. However, one brush located on the opposite side of the four brushes is omitted from illustration. FIG. 3 is a bottom view of that of FIG. 2. Reference numeral 1 denotes a charging car, and this charging car 1 runs on a rail (not shown) laid above a coke oven 4 in which a large number of carbonization chambers 2 are interposed between combustion chambers 3. Run freely. 5 is a machine frame of the charging car 1, and the machine frame 5 is provided with a hopper 6 into which charging coal is loaded. When charging coal into the carbonization chamber 2, the hopper 6 is placed above the carbonization chamber 2a to be charged.
After moving the charging car so that it is located at After that, the charging sleeve 8 at the bottom of the hopper 6 is lowered, the damper 9 is opened, and the coal is charged into the carbonization chamber 2a. Note 10
This is a smoke prevention hood, which is used to trap smoke and dust generated during coal charging. Reference numeral 11 denotes a guide having a U-shaped cross section, which is fixed to the machine frame 5 of the charging vehicle 1 so as to hang from the machine frame 5, and is provided so that the U-shaped recesses of the guide 11 face each other. At the same time, both ends thereof are fitted into the U-shaped recess, and a motor mount 12 is provided so as to be movable up and down while being regulated by the guide 11. A drive motor 13 is mounted and fixed on the upper part of the pedestal 12, and the drive motor rotating shaft 14 passes through a hole bored in the center of the motor pedestal 12 and is connected to the pedestal 12.
The rotating member 15 for cleaning is fixedly installed at the tip of the rotating member 15 for cleaning. The rotating member 15 for cleaning includes a disk-shaped scraper support plate 16, a plurality of bolts 17 fixedly suspended from the bottom of the support plate 16, and a helical spring 18 fitted to the bolts 17. The brush 20 is an example of a scraping body and is fastened with a nut 19. Therefore, the cleaning rotating member 15 located on the charging lid 7b to be cleaned is lowered along the guide 11, and the brush 20 is brought into contact with the charging lid 7b as shown by the dashed line in FIG. So motor 1
3, the rotating shaft 14 and the scraping body support plate 1 are driven.
6 and bolt 17, the brush 20 rotates,
Foreign matter attached to the surface of the charging lid 7b is removed. In this case, there may be some unevenness on the surface of the charging lid 7b,
Alternatively, even if the charging lid 7b is not installed exactly horizontally and is slightly inclined, the brush 20 can rise against the pressure of the spiral spring 18, so it can move along the unevenness and inclination. There is no inconvenience. Moreover, the shock when the brush 20 lands is also alleviated by the spring 18. As the scraping body 20, a brush with metal bristles is usually used as described above, but a cutter made of a metal blade may also be used. Regarding the raising and lowering of the drive motor 13 and the cleaning rotating member 15 connected thereto, a method is adopted in which the cleaning rotating member 15 is raised and lowered in conjunction with the opening/closing mechanism of the damper 9. Normally, coal is charged into the carbonization chambers 2 sequentially for every certain number of chambers. In FIG. 1, the carbonization chamber 2a is depicted as the carbonization chamber to be charged, but the next carbonization chamber to be charged is the carbonization chamber 2b five chambers later. That is, after the coal charging into the carbonization chamber 2a is completed and the coke in the carbonization chamber 2b is discharged outside, the charging sleeve 8 at the bottom of the hopper 6 is positioned above the empty carbonization chamber 2b. The charging car 1 moves, and coal is now charged into the carbonization chamber 2b. Since coal is sequentially charged into every five chambers in this way, the carbonization chamber 2
After the charging of coal into a is completed, the charging lid 7b of the carbonization chamber 2b to which the next coal is to be charged is removed, so the surface of the charging lid 7b must be cleaned before then. No. Therefore, in order to link the coal charging operation and the cleaning operation of the charging lid after the fifth chamber, the cylinder rod of the damper opening/closing cylinder 22 fixed to the frame body 21 provided on the charging vehicle frame 5 was The cylinder rod 23 is connected to the drive motor 13 by a wire 25 via a pulley 24, and the cylinder rod 23 is pushed out, that is, the damper 9 provided at the tip of the cylinder rod 23 is closed. At this time, the cleaning rotating member 15 is in standby above via the drive motor 13, and when the cylinder rod 23 is pulled, that is, when the damper 9 is open, the brush 20 at the bottom of the cleaning rotating member 15 is activated. is positioned above the charging lid 7b. With this configuration, when the cylinder 22 is operated to pull the cylinder rod 23 and the damper 9 is opened in order to charge coal into the carbonization chamber 2a, as the cylinder rod 23 moves, it is connected by the wire 25. The cleaning rotating member 15 descends, and the brush 20 comes into contact with the charging lid 7b at the same time as the damper 9 finishes opening. When the drive motor 13 is operated in this state, the brush 20 interlocked with it rotates, so foreign matter adhering to the charging lid 7b is smoothly removed, and the surface thereof becomes clean. Also, drive motor 1
3 is designed to automatically operate upon detecting that the brush 20 has touched the ground, and also to detect that the brush 20 that has been on the ground has risen;
Alternatively, the operation is automatically stopped after a set time (for example, 20 seconds) of a built-in timer (not shown) has elapsed. Note that the grounding of the brush 20 can be detected by, for example, using a limit switch (not shown) provided at an appropriate position on the guide 11.
This can be done by 2 coming into contact with each other. Table 1 shows electromagnetic charging with and without using the device of the present invention (i.e., when left with the sealing material (mortar) attached to the surface of the charging lid) for each thickness of sealing material (mortar) attached to the surface of the charging lid. This is a comparison of the loading lid removal situation using the lid removal device. The comparative tests were conducted with and without using the device of the present invention for each deposition thickness.
We did each one six times.

[Table] As can be seen from this table, when the device of this invention was used, there was no failure to remove the charging lid even when the thickness of the sealing material was 10 mm, and all the charging lids tested were normal. On the other hand, if the device of the present invention was not used, when the thickness of the sealing material was 6 mm or more, the rate of failure to remove the seal material increased sharply, and when the thickness of the seal material was 10 mm, all of the seals failed to be removed. occured. From this, it can be seen that the use of the device of the present invention is extremely useful in smoothly operating a coke oven. Since the present invention is constructed as described above, the charging lid can be reliably removed by the electromagnetic charging lid detaching device. In addition, in the device of the present invention, the cleaning operation and the opening/closing operation of the damper are linked, so foreign matter adhering to the charging lid surface can be efficiently removed without requiring special management for cleaning. The process lid removal operation can always be performed normally.
Therefore, the industrial value of the present invention is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a side view of a charging car and a coke oven in which the device of the present invention is installed. FIG. 2 is a partially enlarged view of the device of the present invention in FIG. 1, and FIG. 3 is a bottom view thereof. 1... Charging vehicle, 2, 2a, 2b... Carbonization chamber, 3
... Combustion chamber, 4 ... Coke oven, 5 ... Machine frame, 6
... Hopper, 7, 7b ... Charging lid, 8 ... Charging sleeve, 9 ... Damper, 10 ... Smoke prevention hood, 11 ... Guide, 12 ... Mount, 13
... Drive motor, 14 ... Rotating shaft, 15 ... Rotating member for cleaning, 16 ... Scraping body support plate, 17 ...
...Bolt, 18...Rasenjutsu, 19...Natsuto,
20... Scraping body, 21... Frame body, 22... Damper opening/closing cylinder, 23... Cylinder rod, 24... Pulley, 25... Wire.

Claims (1)

[Scope of utility model registration request] A charging lid cleaner is provided in which a guide 11 is provided on the machine frame 5 of the charging car 1 in a coke oven, and a drive motor 13 is provided to freely move up and down under the control of the guide 11, and a scraper 20 is provided at the bottom. A rotary member 15 is connected to the drive motor 13, and the drive motor 13 and the machine frame 5 of the charging vehicle 1 are connected to each other.
Connect the cylinder rod 23 of the damper opening/closing cylinder 22 attached to the drive motor 1.
A device for cleaning the surface of a coke oven charging lid, characterized in that the lifting and lowering of step 3 is linked with the opening and closing operation of damper 9.