JPH0569139U - Anti-scattering device for residual coal in the charging sleeve of a coal car - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the charcoal remaining in the coke oven coal charging sleeve from scattering around the coal charging port. [Structure] A residual coal detector 8 for detecting the presence or absence of residual coal in the charging sleeve 4 of a coke oven coal charging vehicle, a movable mechanism 9 for moving the residual coal detector 8 back and forth into the charging sleeve 4, and a coal feeding system. The movable mechanism 9 is operated by the gate 6 closing signal to insert the residual coal detector 8 into the charging sleeve 4 for a predetermined time.
The residual coal detector 8 is inserted again into the charging sleeve 4 for a predetermined time by the signal indicating that the residual coal is present, and the charging sleeve rise command is output by the residual coal detector 8 signal indicating that there is no residual coal. . [Effect] There is no need to clean up the charging coal scattered around the charging port, and gas leakage due to deterioration of the sealing performance of the charging lid,
It is possible to prevent the work environment from deteriorating.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an anti-scattering device for charcoal in a charging sleeve, which can prevent the charcoal remaining in the charging sleeve of a coal car for charging the coal into the coke oven from being scattered around the charging port. .

[0002]

[Prior Art]

 As shown in FIG. 4, the charging of the charging coal into the carbonization chamber of the coke oven is performed by loading the charging coal into the coal feeding hopper 21 of the coal charging vehicle movably mounted on the rail laid on the furnace. The carburizing car is moved to a predetermined carbonization chamber 22 where coke extrusion has been completed, the charging lid of the coal charging port 23 is removed by a lid removing device (not shown), and then the charging sleeve 24 is lowered to perform the carbonization. It is attached to the mouth 23, and then the gate 26 provided between the upper chute 25 and the charging sleeve 24 is opened, the table feeder 27 is activated, and the charging coal is cut out from the coal feeding hopper 21, the upper chute 25 and the charging sleeve. It is common to charge the carbonization chamber 22 via 24.

The charging operation of the charging coal into the coke oven carbonization chamber 22 is performed while communicating with the extruder and the coke guide vehicle, but the charging coal is carried out at 4 to 5 places provided on the furnace. Since it is charged from the coal charging port 23, a mountain shape having the coal charging port 23 as its apex is formed. For this reason, in order to secure a gas passage for the generated gas before the end of charging, leveling is performed in which the upper surface of the charging coal charged in the carbonization chamber 22 is leveled by the leveler of the extruder. When the leveling is completed, the coal-charging vehicle stops the table feeder 27, closes the gate 26, raises the post-charging sleeve 24, mounts the charging lid of the coal-charging port 23 by means of the lid removing device, and feeds the coal feeding hopper 21. Drive to the coal tower for coal feeding.

In the above-mentioned carbonization work, the difference in bulk density due to the water content, particle size, etc. of the charging coal, the balance of charging may be disturbed due to the timing of leveling, etc., and this may hinder the carburizing work. To do. As shown in FIG. 5, the charging completion signal in the above-mentioned charging operation normally closes the gate 26, and when the closing of the gate 26 is confirmed by the limit switch (LS), it is operated by the time UP of the timer that operates. Therefore, it is not possible to accurately grasp the presence or absence of residual coal in the charging sleeve 24. When the charging completion command is output in the state shown in FIG. 4 (a) in which the charging coal remains in the charging sleeve 24 and the charging sleeve 24 is raised up to that state, FIG. 4 (b) is displayed. As shown in, the charging coal is scattered around the charging port 23.

[0005]

[Problems to be solved by the device]

 In the above-mentioned carburizing work, the charging sleeve is raised as it is with the charging coal remaining in the charging sleeve, and when the charging coal is scattered around the charging port, the scattered charging coal is cleaned up. Not only do they occur, but the sealing performance of the charging lid deteriorates, causing gas leakage, which deteriorates the work environment. In addition, dropping the charging coal remaining in the charging sleeve requires leveling again, which delays the kiln removal work. However, at present, the setting of the timer until the charging sleeve raising command is issued after the gate is closed depends on the experience and feeling of the operator. The detection and treatment of residual coal in the charging sleeve is one of the obstacles to unmanned automatic operation of the coal car.

It is an object of the present invention to provide a device for preventing scattering of residual coal in a charging car charging sleeve, which can prevent scattering of charging coal remaining in the charging sleeve around the charging port.

[0007]

[Means for Solving the Problems]

 The present inventors have made various studies to achieve the above object. As a result, a residual coal presence / absence detector is installed to move back and forth into the charging sleeve of the coal car, and the residual coal presence / absence detector is raised by raising the charging sleeve with a signal indicating no residual coal from the residual coal presence / absence detector. The inventors arrived at the present invention by concluding that they were not constantly exposed to flames in the charging sleeve, could prevent damage, and would not hinder coal falling.

That is, the present invention is directed to a residual coal detector for detecting the presence or absence of residual coal in the charging sleeve of a coke oven coal car, a movable mechanism for moving the residual coal detector forward and backward into the charging sleeve, and a coal feeding system. The gate closing signal operates the movable mechanism to insert the residual coal detector into the charging sleeve for a predetermined time, and the residual controller charcoal detector is again set into the charging sleeve by the residual coal detector signal. It is an anti-scattering device for the residual coal in the charging sleeve of the coal-charging vehicle, which consists of a control unit that inserts time and outputs a charging-sleeve rise command in response to a signal indicating no residual coal from the residual coal detector.

[0009]

[Action]

 In this invention, a residual coal detector for detecting the presence or absence of residual coal in the charging sleeve is provided by a movable mechanism so that it can be moved back and forth into the charging sleeve, so that it can be inserted into the charging sleeve only when necessary. , It is possible to prevent damage to the residual coal detector due to the flame entering the charging sleeve, and it does not hinder the dropping of the charging coal during the charging. In addition, the remaining coal detector signal is used to insert the remaining coal detector into the charging sleeve again for a specified time, and the charging sleeve rise command is output by the residual coal detector no signal. Since the control unit is provided, if the charging coal remains in the charging sleeve, the charging sleeve is not raised until the signal indicating that there is no residual coal in the charging sleeve is input, and the charging port It is possible to prevent the scattering of the charged coal to the surroundings.

[0010]

【Example】

 The details of this invention will be described below with reference to FIGS. FIG. 1 is an overall cross-sectional explanatory view of a residual coal scattering prevention device of the present invention, FIG. 2 is a control system diagram of the residual coal dispersion prevention device of the present invention, and FIG. 3 is a schematic diagram showing a state of residual carbon detection by a residual coal detector. It is a sectional view. In FIGS. 1 and 3, 1 is a coal feed hopper of a coal car, 2 is a carbonization chamber of a coke oven, 3 is a carbonization port of the carbonization chamber 2, 4 is a charging sleeve, and the coal charging port 3 is lowered during carbonization. To be attached to. An upper chute 5 is connected to the upper part of the charging sleeve 4 via a gate 6, and is connected to the coal feeding hopper 1. Reference numeral 8 is a residual carbon detector for detecting the presence or absence of residual coal in the charging sleeve 4, which is connected to the rod tip of the cylinder 9 and is provided so as to be movable back and forth into the inner cylinder of the charging sleeve 4. As shown in FIG. 2, the control unit 10 operates the cylinder 9 by the closing signal of the coal feeding gate 6 to insert the residual coal detector 8 into the inner cylinder of the charging sleeve 4 for a predetermined time, and the residual coal detector 8 When the signal indicates that there is residual coal, the residual coal detector 8 is again inserted into the inner cylinder of the charging sleeve 4 for a predetermined time. When the signal from the residual coal detector 8 indicates that there is no residual coal, the charging sleeve 4 rise command is output. To configure.

With the above configuration, the charging coal is loaded on the coal feeding hopper 1 of the coal car, and the coal car is moved to a predetermined carbonization chamber 2 where the coke extrusion has been completed. After removing the charging lid of the charging port 3, the charging sleeve 4 is lowered to mount it on the charging port 3, and then the gate 6 provided between the upper chute 5 and the charging sleeve 4 is opened. Then, a table feeder (not shown) is activated to cut out the charging coal from the coal feeding hopper 1, and the charging coal is charged into the carbonizing chamber 2 through the upper chute 5 and the charging sleeve 4. At this time, the residual coal detector 8 is not inserted into the inner cylinder of the charging sleeve 4. The control unit 10 receives the signal of the time UP of the timer which operates when the charging is completed and the gate 6 is closed, and the closing of the gate 6 is confirmed by the ON (not shown) limit switch (LS). The cylinder 9 is operated to insert the residual coal detector 8 into the inner cylinder of the charging sleeve 4, and the insertion of the residual coal detector 8 into the inner cylinder of the charging sleeve 4 is confirmed by turning on the limit switch (LS). Then, the cylinder 9 is operated to remove the residual coal detector 8 from the inside cylinder of the charging sleeve 4 by the signal of the time UP of the timer which operates. Then, when the signal of the residual coal detector 8 indicates that there is residual coal, the control unit 10 operates the cylinder 9 again to insert the residual coal detector 8 into the inner cylinder of the charging sleeve 4, and the residual coal detector 8 Charging sleeve 4 inner cylinder of the charging sleeve 4 is operated by operating the cylinder 9 by the signal of the time UP of the timer which is activated when the insertion into the inner cylinder of the sleeve 4 is confirmed by turning on the limit switch (LS). Repeat withdrawing from inside. On the other hand, when the signal of the residual coal detector 8 indicates that there is no residual coal, the control unit 10 outputs a command to raise the charging sleeve 4, raises the charging sleeve 4, and then the charging lid of the charging port 3. And the carburizing work in the carbonization chamber is completed. Therefore, even if the charging coal remains in the charging sleeve 4 due to changes in the water content of the charging coal, the particle size, the table feeder starting balance, the leveling timing, etc., this can be detected by the residual coal detector 8. Therefore, it is possible to prevent the residual coal from being scattered around the coal charging port.

[0012]

[Effect of the device]

 As described above, according to the present invention, it is possible to prevent the scattering of the residual coal around the coal charging port due to the residual of the charging coal inside the charging car charging sleeve. Since no attachment work is required, it is possible to prevent gas leakage and deterioration of the work environment due to deterioration of the sealing property of the charging lid. In addition, re-leveling by dropping the charging coal remaining in the charging sleeve becomes unnecessary, and the kiln removal work is not delayed.

[Brief description of drawings]

FIG. 1 is an explanatory view of the entire cross section of a residual coal scattering prevention device of the present invention.

FIG. 2 is a control system diagram of the residual coal scattering prevention device of the present invention.

FIG. 3 is a schematic cross-sectional view showing how the residual coal detector detects residual coal.

[Fig. 4] Fig. 4 shows a situation in which the charging coal remains in the charging sleeve. Fig. 4 (a) shows a residual charging coal state, and Fig. 4 (b) shows a charging coal remaining state. It is a situation figure when a sleeve is raised.

FIG. 5 is a control system diagram for confirming completion of conventional coal feeding.

[Explanation of symbols]

 1,21 Charging hopper 2,22 Carbonizing chamber 3,23 Charging port 4,24 Charging sleeve 5,25 Upper chute 6,26 Gate 8 Remaining coal detector 9 Cylinder 10 Control unit 27 Table feeder

Claims (1)

[Scope of utility model registration request] 1. A residual coal detector for detecting the presence or absence of residual coal in the charging sleeve of a coke oven coal charging vehicle, a movable mechanism for moving the residual coal detector into and out of the charging sleeve, and a coal feeding gate closing signal. Operate the moving mechanism to insert the residual coal detector into the charging sleeve for a specified time, and then insert the residual coal detector into the charging sleeve again for a specified time with the signal indicating that the residual coal is present. An anti-scattering device for residual coal in the charging sleeve of a coal charging vehicle, which comprises a control unit that outputs a charging sleeve rise command in response to a signal indicating no coal remaining in the coal detector.