JP5034339B2 - Coke extrusion equipment - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a coke extrusion apparatus for extruding generated coke from a carbonization chamber in a coke oven, and in particular, reducing the extrusion load, reducing damage to the furnace wall (side wall) of the carbonization chamber, and The present invention relates to a coke extrusion device capable of extending the life. In the present invention, unless otherwise specified, the coke oven refers to a chamber type coke oven. The chamber furnace type coke oven has a heat storage chamber at the lower portion of the furnace body, and combustion chambers and carbonization chambers are alternately arranged at the upper portion thereof.

  In the coke oven, when coke (coke lump) produced by carbonizing coal in the carbonization chamber is extruded from the carbonization chamber using an extrusion device, the coke is clogged in the carbonization chamber, resulting in an increase in the extrusion load. As a result, a large force acts on the furnace wall of the carbonization chamber, and the furnace wall may be damaged. When the clogging is severe, the furnace wall is destroyed, or it cannot be pushed out by the extrusion device, and the furnace temperature is lowered, and then the coke is scraped out manually. For this reason, there are problems such as an increase in the repair cost of the furnace wall and a reduction in the production amount due to the shutdown of the furnace.

  On the other hand, the following has been proposed as a technique for reducing the extrusion load and preventing damage to the furnace wall.

  For example, when repairing the bottom brick in the carbonization chamber of the coke oven, the dry powder coke is placed in the carbonization chamber, and the dry powder coke fills the recesses on the surface of the bottom brick and flattens it. A method for reducing the friction between the lump and the furnace bottom has been proposed (see, for example, Patent Document 1).

Further, prior to charging the raw coal to the carbonization chamber, the particulate refractory material (5mm or less) (such as graphite or Si ₃ N ₄₎ leave spread the beveled furnace bottom, lump coke and the oven during coke extrusion A technique has also been proposed in which friction between the bottoms is reduced, and as a result, furnace wall damage is prevented (see, for example, Patent Document 2).

  Patent Document 3 discloses a device for carrying out coke by vibrating a horizontal shovel up and down to collapse coke in the carbonization chamber into a bucket.

In the [Problems to be Solved by the Invention] column, the unpublished prior application of the present applicant will be described, and the application number is described here. That is, Japanese Patent Application No. 2005-377312 (Unpublished Application 1).
JP 59-187082 A JP-A-8-120278 Soviet Union Patent No. 981340

  However, the techniques described in Patent Documents 1 and 2 do not lead to a sufficient push load reduction.

  That is, both of the techniques described in Patent Documents 1 and 2 are intended to reduce the frictional force between the coke lump and the carbonization chamber furnace bottom. The main cause of the increase is not the frictional force between the coke mass and the bottom of the coking chamber, but when the coke mass is extruded using an extrusion device, the coke mass pushed by the ram head of the extrusion device is deformed and collapsed. This is because the frictional force between the coke lump and the carbonization chamber furnace wall is increased by spreading in the horizontal direction perpendicular to the extrusion direction.

  In addition, the technique described in Patent Document 3 does not use the extrusion device targeted by the present application, vibrates the horizontal shovel attached to the bucket up and down, collapses the coke in the carbonization chamber into the bucket, The coke in the furnace is scooped out many times with a bucket, and it takes much time to carry out the coke compared to a coke oven using an extrusion device.

  Therefore, in order to solve the above-mentioned problem, in the non-published application 1, the applicant reduced the extrusion load accurately by applying vibration to the coke mass in the carbonization chamber, thereby reducing the furnace of the carbonization chamber. The coke extrusion method and the coke extrusion apparatus which can reduce the damage of a wall are proposed.

  FIG. 6 is a side view showing an example of a coke extrusion device proposed in the non-published application 1, and FIG. 7 is a perspective view of the coke extrusion device.

  6 and 7, reference numeral 15 denotes a coke extrusion device shown as an example in the non-published application 1, and includes an extrusion ram 20 including a ram rod 21 and a ram head 22, and an extrusion ram drive device (not shown). At the same time, the pressing surface of the ram head 22 pressed against the coke lump 2 in the carbonizing chamber 1 has three pressing surfaces of an upper pressing surface 22a, an intermediate pressing surface 22b, and a lower pressing surface 22c in the vertical direction. A vibration exciter (vibration motor or hydraulic vibration exciter) 28 for vibrating the intermediate pressing surface (vibration plate) 22b in the pushing direction through the vibration rod 29 is provided. It is attached to the ram rod 21.

  Then, using the coke pushing device 15 configured as described above, the vibrator 28 shakes the intermediate pressing surface (vibrating plate) 22b in the pushing direction to impart vibration to the coke lump 2. By moving the ram head 22 forward, the friction between the coke lump 2 and the furnace wall of the carbonization chamber 1 changes from static friction to dynamic friction, and the coefficient of friction decreases, thereby reducing the extrusion load. As a result, damage to the furnace wall can be suppressed.

  In addition, when pushing out while applying vibration to the coke lump 2 using the vibration mechanism composed of the vibration plate 22b, the vibration rod 29, and the vibration generator 28 as described above, the vibration mechanism is appropriately used. It becomes important to support.

  That is, while the reaction force from the coke lump 2 applied to the vibration plate 22b is received by the ram 20 (in other words, while the pushing force from the ram 20 is transmitted to the vibration plate 22b), a desired force is applied to the vibration plate 22b. It is necessary to support the excitation mechanism so that vibration can be performed.

  The present invention has been made in view of such circumstances, and when the ram head at the tip of the ram is pressed against the coke mass in the carbonization chamber of the coke oven and the coke mass is pushed out of the carbonization chamber, the coke mass is excited by a vibration mechanism. An object of the present invention is to provide a coke extrusion device having a structure that appropriately supports an excitation mechanism as a coke extrusion device that can extrude while applying vibration.

  In order to solve the above problems, the present invention has the following features.

[1] the lump coke carbonization chamber of coke oven, the coke lumps by pressing the ram head of ram including a push rod to the ram head and the rear end to the tip when pressing out the carbonization chamber while applying vibration to the lump coke a coke pusher machine which can be extruded, mechanism for supporting the vibrator structure to vibrate at least a portion of the pressing surface of the ram head, wherein the mechanism for supporting the vibration mechanism, the weight of the vibrating mechanism When, and a mechanism for receiving the extrusion reaction force exerted on the vibration mechanism in a ram, a mechanism for supporting the weight of the vibration mechanism, the a mechanism for receiving the extrusion reaction force exerted on the vibrating mechanism at the ram is separated A coke pushing device, wherein the ram rod is provided with a mechanism for receiving the pushing reaction force applied to the vibration exciting mechanism with a ram .

[ 2 ] A coke extrusion device capable of pushing a ram head at the tip of a ram against a coke mass in a carbonization chamber of a coke oven to extrude the coke mass from the carbonization chamber while applying vibration to the coke mass. A vibration mechanism for vibrating at least a part of the pressing surface, a mechanism for supporting the vibration mechanism, a mechanism for supporting the weight of the vibration mechanism, and a reaction force applied to the vibration mechanism by a ram. A receiving mechanism, a leaf spring connected to the ram and the exciting mechanism, and supporting the own weight of the exciting mechanism and receiving the pushing reaction force. a mechanism for supporting the weight of the vibration mechanism, leaving it press characteristics and to Turkey Kusu the said a mechanism to receive the extruded reaction force exerted on the vibrating mechanism at the ram are integrated Apparatus.

  The coke mass referred to in the present invention refers to the entire coke in the carbonization chamber, and does not mean only the block-shaped coke mass in which the cokes are fixed. Coke cracks in the cooling process, but in the extrusion process, the cokes can come into close contact with each other and transmit vibrations to the entire coke, so there is no need for the block to have coke fixed.

  The coke extrusion device according to the present invention is a coke extrusion device capable of pushing a ram head against a coke lump in a carbonization chamber and applying vibration to the coke lump. Since the mechanism has an appropriate structure, the pushing load can be accurately reduced. As a result, damage to the furnace wall can be suppressed, operation delay due to clogging can be avoided, and productivity can be increased.

  Embodiments of the present invention will be described with reference to the drawings.

  In each of the following embodiments, the basic configuration of the coke pushing device is the same as that shown in FIGS. 6 and 7, and a ram 20 including a ram rod 21 and a ram head 22, a ram driving device (see FIG. (Not shown), and the pressing surface of the ram head 22 pressed against the coke lump 2 in the carbonizing chamber 1 is an upper pressing surface 22a, an intermediate pressing surface 22b, and a lower pressing surface 22c in the vertical direction. And a vibration exciter (vibration motor or hydraulic pressure) for vibrating the intermediate pressure contact surface (vibration plate) 22b through the vibration rod 29 in the pushing direction. (Vibrator etc.) 28 is attached to the ram rod 21.

  In each embodiment, the structure of the support mechanism that supports the vibration mechanism composed of the vibration plate 22b, the vibration rod 29, and the vibration exciter 28 will be described.

(First embodiment)
FIG. 1 is a side view for explaining a support mechanism of an excitation mechanism according to the first embodiment of the present invention.

  As shown in FIG. 1, in this embodiment, the vibration plate 22b is connected to the ram head 22 via a predetermined number of springs 31 arranged in the ram head 22, thereby pushing out the vibration plate 22b. The ram 20 receives the reaction force P2.

  At this time, the spring 31 contracts when the pushing reaction force P2 is applied. However, the spring 31 contracts to an appropriate amount and has a spring length that can take the displacement necessary for the amplitude of the vibration plate 22b. The power P2 can be vibrated while being transmitted to the ram 20.

  The pushing reaction force P1 applied to the upper pressing surface 22a and the pushing reaction force P2 applied to the lower pressing surface 22c are applied to the ram head 22 as they are.

  The ram 20 is provided with a predetermined number of support bearings 32 for supporting the vibration rod 29, so that the ram 20 supports the weight of the vibration mechanism.

  Thus, in this embodiment, since the mechanism for supporting the weight of the vibration mechanism and the mechanism for receiving the pushing reaction force applied to the vibration mechanism by the ram head 22 are provided, the coke block applied to the vibration plate 22b. While the reaction force P2 from 2 is received by the ram 20, the vibration plate 22b can be caused to perform a desired vibration.

  As a result, the extrusion load can be accurately reduced, damage to the furnace wall can be suppressed, operation delay due to clogging can be avoided, and productivity can be increased.

(Second Embodiment)
FIG. 2 is a side view for explaining the support mechanism of the vibration mechanism in the second embodiment of the present invention.

  As shown in FIG. 2, in this embodiment, the vibrating rod 29 is provided with a flange portion 29 a, and the flange portion 29 a is connected to the ram rod 21 via a spring 31 arranged in a predetermined number on the ram rod 21. Thus, the ram 20 receives the pushing reaction force P2 applied to the vibration plate 22b.

  As described above, the thermal influence on the spring 31 can be reduced by arranging the spring 31 at the rear stage of the ram rod 21 in which the residence time in the high-temperature carbonizing chamber 1 is relatively short. At that time, the excitation rod 29 is set to have a sufficient strength to counter the reaction force P2.

  The pushing reaction force P1 applied to the upper pressing surface 22a and the pushing reaction force P2 applied to the lower pressing surface 22c are applied to the ram head 22 as they are.

  The ram 20 is provided with a predetermined number of support bearings 32 for supporting the vibration rod 29, so that the ram 20 supports the weight of the vibration mechanism.

  Thus, in this embodiment, since the mechanism that supports the weight of the vibration mechanism and the mechanism that receives the pushing reaction force applied to the vibration mechanism by the ram rod 21 are provided, the coke block that is applied to the vibration plate 22b. While the reaction force P2 from 2 is received by the ram 20, the vibration plate 22b can be caused to perform a desired vibration.

  As a result, the extrusion load can be accurately reduced, damage to the furnace wall can be suppressed, operation delay due to clogging can be avoided, and productivity can be increased.

(Third embodiment)
FIG. 3 is a side view for explaining the support mechanism of the vibration excitation mechanism in the third embodiment of the present invention.

  As shown in FIG. 3, in this embodiment, the vibration exciter 28 is connected to the ram rod 21 via a predetermined number of springs 31 arranged behind it, whereby the extrusion reaction applied to the vibration plate 22b. The ram 20 receives the force P2.

  Thus, by arranging the spring 31 at the rear end of the ram rod 21 that does not enter the high-temperature carbonization chamber 1, the spring 31 can be used in a temperature environment close to room temperature, which is advantageous from the viewpoint of maintenance and life management. It becomes. At that time, the excitation rod 29 is set to have a sufficient strength to counter the reaction force P2.

  The pushing reaction force P1 applied to the upper pressing surface 22a and the pushing reaction force P2 applied to the lower pressing surface 22c are applied to the ram head 22 as they are.

  The ram 20 is provided with a predetermined number of support bearings 32 for supporting the vibration rod 29, so that the ram 20 supports the weight of the vibration mechanism.

  Thus, in this embodiment, since the mechanism that supports the weight of the vibration mechanism and the mechanism that receives the pushing reaction force applied to the vibration mechanism by the ram rod 21 are provided, the coke block that is applied to the vibration plate 22b. While the reaction force P2 from 2 is received by the ram 20, the vibration plate 22b can be caused to perform a desired vibration.

  As a result, the extrusion load can be accurately reduced, damage to the furnace wall can be suppressed, operation delay due to clogging can be avoided, and productivity can be increased.

(Fourth embodiment)
FIG. 4 is a side view for explaining the support mechanism of the vibration excitation mechanism in the fourth embodiment of the present invention.

  In the first to third embodiments described above, the mechanism that supports the weight of the vibration mechanism is separated from the mechanism that receives the pushing reaction force applied to the vibration mechanism with the ram. In this embodiment, Both are integrated.

  That is, as shown in FIG. 4 (a), in this embodiment, the oscillating rod 29 is connected to the ram rod 21 via a plate spring 33 in which a predetermined number of oscillating rods 29 are arranged. The ram 20 supports the own weight of the vibration mechanism, and receives the pushing reaction force P2 applied to the vibration mechanism.

  FIG. 4B shows the details, and the vibration rod 29 is supported by the leaf spring 33 from above and below, only from the top or only from the bottom, thereby fixing the position in the height direction and pushing reaction force. When P2 is applied, the leaf spring 33 bends in the lateral direction from the state indicated by the alternate long and short dash line to the position where the leaf spring 33 balances with the reaction force P2, and transmits the reaction force P2 to the ram rod 21.

  Thus, by integrating the mechanism that supports the weight of the vibration mechanism and the mechanism that receives the pushing reaction force applied to the vibration mechanism with the ram, the number of components can be reduced, and maintenance is facilitated.

  Thus, in this embodiment, since the mechanism for supporting the weight of the vibration mechanism and the mechanism for receiving the pushing reaction force applied to the vibration mechanism with the ram rod 21 are integrated, the vibration plate 22b is provided with the vibration plate 22b. While the reaction force P2 from the applied coke lump 2 is received by the ram 20, it is possible to cause the vibration plate 22b to perform desired vibration.

  As a result, the extrusion load can be accurately reduced, damage to the furnace wall can be suppressed, operation delay due to clogging can be avoided, and productivity can be increased.

(Fifth embodiment)
FIG. 5 is a side view for explaining the support mechanism of the vibration excitation mechanism in the fifth embodiment of the present invention.

  In the support mechanisms of the first to fourth vibration mechanisms described above, the vibration mechanism is displaced in the horizontal direction by static elastic deformation based on the extrusion reaction force P2 and vibration due to the vibration force. For some reason, it cannot be said that there is no possibility of applying a large pushing reaction force or a static force in the reverse direction that is unexpected and unexpected. In such a case, there is a possibility that the vibration mechanism is greatly displaced, a force exceeding the allowable range is applied to the support mechanism, and the support mechanism is broken.

  Therefore, in this embodiment, in order to prevent the support mechanism from being broken in the above case, a mechanical stopper mechanism is provided so that the excitation mechanism is displaced within the allowable range of the support mechanism. ing.

  That is, FIG. 5 is a mechanical stopper mechanism provided in the support mechanism shown in FIG. 3 described above. The ram rod 21 is provided with a front stopper part 34 and a rear stopper part 35, and the vibration mechanism is When attempting to displace beyond the allowable range of the support mechanism, the flange 19a of the vibration rod 29 hits the front stopper part 34 or the rear stopper part 35, and the vibration mechanism displaces beyond the allowable range of the support mechanism. I can't do it.

  Incidentally, S1 in FIG. 5 is an allowable range when a reaction force exceeding an assumption is applied to the vibration mechanism, and S2 in FIG. 5 is an allowable value when a force is applied to the vibration mechanism in the opposite direction. It is a range.

  Here, the support mechanism shown in FIG. 3 has been described as an example. However, in the support mechanisms shown in FIGS. 1, 2, and 4, similarly, a machine for limiting the displacement of the excitation mechanism is used. A stopper mechanism can be provided so that the vibration mechanism is displaced within the allowable range of the support mechanism.

  Thus, in this embodiment, a mechanical stopper mechanism for limiting the displacement of the vibration mechanism is provided so that the vibration mechanism is displaced within the allowable range of the support mechanism. Even when the large extrusion reaction force or the reverse static force is applied, the support mechanism can be prevented from being broken.

  In the first to fifth embodiments described above, a part of the pressing surface of the ram head 22 is a vibrating portion (vibrating plate), but the entire pressing surface of the ram head 22 is excited. Needless to say, the portion (vibration plate) may be used.

It is explanatory drawing of the 1st Embodiment of this invention. It is explanatory drawing of the 2nd Embodiment of this invention. It is explanatory drawing of the 3rd Embodiment of this invention. It is explanatory drawing of the 4th Embodiment of this invention. It is explanatory drawing of the 5th Embodiment of this invention. It is a side view of the coke extrusion apparatus shown as an example in Japanese Patent Application No. 2005-377312. It is a perspective view of the coke extrusion apparatus shown as an example in Japanese Patent Application No. 2005-377312.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Carbonization chamber of coke oven 2 Coke lump 15 Coke extrusion apparatus 20 Ram 21 Ram rod 22 Ram head 22a Upper pressing surface 22b Intermediate pressing surface (vibration plate)
22c Lower pressing surface 28 Exciter 29 Exciting rod 29a Exciting rod flange 31 Spring 32 Support bearing 33 Plate spring 34 Front stopper portion 35 Rear stopper portion

Claims (2)

The lump coke carbonization chamber of coke oven, the coke lumps by pressing the ram head of ram including a push rod to the ram head and the rear end to the tip when pressing out the carbonization chamber, to extrude while applying vibration to the lump coke A coke extrusion device that can
A vibrator structure to vibrate at least a portion of the pressing surface of the ram head,
As a mechanism for supporting the vibrating mechanism, a mechanism for supporting the weight of the vibrating mechanism,
And a mechanism for receiving the extrusion reaction force exerted on the vibration mechanism with a ram,
The mechanism that supports the weight of the vibration mechanism is separated from the mechanism that receives the pushing reaction force applied to the vibration mechanism with a ram.
A coke pushing device, wherein the ram rod is provided with a mechanism for receiving the pushing reaction force applied to the vibration exciting mechanism with a ram . A coke extrusion device capable of pushing out a coke lump while applying vibration to the coke lump when pushing the ram head at the ram tip against the coke lump in the carbonization chamber of the coke oven,
An excitation mechanism for vibrating at least a part of the pressing surface of the ram head;
As a mechanism for supporting the vibration mechanism, a mechanism for supporting the weight of the vibration mechanism;
A mechanism for receiving an extrusion reaction force applied to the excitation mechanism with a ram;
A leaf spring connected to the ram and the vibration mechanism, and supporting the weight of the vibration mechanism and receiving the pushing reaction force;
By providing the leaf spring, said a mechanism for supporting the weight of the vibration mechanism, the vibration mechanism to take extrusion reaction force that features and to Turkey Kusu extrusion apparatus for a mechanism to receive a ram are integrated .

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