JPH09249883A - Coke transport method - Google Patents

Abstract

(57) [Summary] [Problem] It is possible to minimize the coke storage site, not to deteriorate the product yield in the transfer process, to be excellent in transfer efficiency, and not to cause environmental problems. An industrially advantageous method of transporting coke is provided. SOLUTION: A lump of coke discharged into a wharf of a coke oven is cut out and sent to a conveyor device below the wharf,
At least the bottom inner wall surface is accommodated in a box-shaped container made of an elastic material and transported.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transporting coke, and more particularly to a method for transporting massive coke which is industrially advantageous.

[0002]

2. Description of the Related Art Coke is extruded from a coke oven carbonization chamber onto a fire extinguishing train, and then extinguished in a water sprinkling tower and discharged into a wharf. And the coke that was wharfed was
It is cut out and delivered to a conveyor device under the wharf, transferred to a coke yard and stored. Thereafter, the stored coke is loaded on a truck or the like by an appropriate means such as a shovel car and transported to a user such as a foundry.

[0003] That is, conventionally, large-scale coke obtained as a lump is transported from a manufacturing plant to a user by transporting wharfed coke to a coke yard once by a conveyor device, storing the coke, and then transporting the coke to a truck or the like. And transported to the user. For many small-lot users, a method of once transferring from a coke yard to a relay base by a truck or the like and transporting the same again to each user by a truck or the like is adopted.

[0004]

However, in the case of the above-mentioned conventional method, a large coke yard or a relay base is required for storage, and the product coke is crushed during loading operation by a shovel car and the product yield is increased. In addition, there are various problems, such as poor handling efficiency, and low transport efficiency due to handling in bulk, and furthermore, deterioration of the environment due to dust generated during storage or handling at a coke yard or a relay station.

The present invention has been made in view of the above circumstances, and an object of the present invention is to minimize the amount of coke storage premises, reduce the product yield in the transport process, and improve transport efficiency. An object of the present invention is to provide an industrially advantageous method of transporting coke, which is excellent and does not cause environmental problems.

[0006]

The present inventors have conducted various studies to achieve the above object, and as a result, as a method for transporting coke which is obtained as a large-scale lump, a conventional method has been proposed by those skilled in the art. Came up with an unexpected container packing and transport method.

The present invention has been completed on the basis of the above-mentioned novel idea. The gist of the present invention is to cut and send lump coke discharged into a wharf of a coke oven to a conveyor device below the wharf. The present invention resides in a method of transporting coke, wherein at least a bottom inner wall surface is accommodated in a box-shaped container made of an elastic material and transported.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1A is an explanatory plan view showing an example of the transport method of the present invention, FIG. 1B is a side explanatory view of the transport method shown in FIG. 1A, and FIG. 2 is a transport method of the present invention. Exploded explanatory view of an example of the box-shaped container used in FIG. 3, FIG. 3 is an explanatory view of an assembled state of the box-shaped container shown in FIG. 2, and FIG. 4 is an explanatory view of a folded state of the box-shaped container shown in FIG. FIG. 5 is an explanatory view of the box-shaped container shown in FIG. 2 in an overturned state, and FIG. 6 is an explanatory side view of a coke oven around a wharf.

As shown in FIG. 6, a lump of coke (1) extinguished in a sprinkler tower (not shown) is discharged from a fire extinguishing train (2) to a wharf (3). At the lower end of the wharf (3), a normal cutting device mainly composed of a rotating drum (4), a gate (5), a gate opening / closing mechanism (6) and the like is arranged. After the coke (1) is retained on the wharf (3), the coke is cut by a cutting device into a conveyor device (7) below the wharf (3) in appropriate amounts. That is, the lump of coke (1), the movement of which has been restricted by the gate (5), is moved when the gate (5) is rotated by driving the gate opening / closing mechanism (6).
It is cut out from the lower gap by driving the rotary drum (4).

First, in the present invention, after the coke lump (1) discharged into the wharf (3) of the coke oven is retained on the wharf (3), the coke mass (1) is transferred to the conveyor device (7) below the wharf (3). Cut out and send.

Next, in the present invention, as shown in FIG. 1, the massive coke (1) delivered by the conveyor device (7) is stored in a box-shaped container (13). Box type container (1
3) is different from a flexible container, that is, a bag-shaped container made of a foldable flexible material, because the container itself does not bend while maintaining a box-like shape, and thus is broken by a lump of coke. There is no fear of doing it. In fact, according to tests by the present inventors, the use of flexible containers is difficult due to many breakage accidents.

In the present invention, the lump coke (1) delivered by the conveyor device (7) can be sieved by the sieving device (8) before being stored in the box-shaped container (13). According to such an embodiment, small-diameter coke that is inappropriate as a product can be excluded from the objects to be conveyed, thereby reducing the cost of conveyance.

In the embodiment shown in FIG. 1, only the sieved product (9) delivered by the connecting conveyor device (11) is stored in the box-shaped container (13).
The sieved product (10) delivered by the connecting conveyor device (12) can also be accommodated in a box-shaped container. According to such an embodiment, it is possible to streamline the transportation in a case where a small-diameter coke that is inappropriate as a product is used for another purpose. The sieving process as described above is recommended in the case of, for example, casting coke or the like in which the product size is defined.

Incidentally, the actual operation of accommodating the massive coke (1) delivered by the conveyor device (7) in the box-shaped container (13) is as shown in FIG.
3) involves the operation of dropping massive coke (1). Such a drop height is set in a box-shaped container (1
If the capacity (height) of 3) is increased, it must be increased. As a result, the massive coke (1) is damaged, and in the case where a plastic material described later is used as the material of the box-shaped container (13), there are serious problems such as the bottom inner wall surface being depressed.

Therefore, in the present invention, in order to solve the above-mentioned problems at once, a box-shaped container (13) having at least a bottom inner wall surface made of an elastic material is used as the box-shaped container (13). is important. The box-shaped container whose bottom inner wall surface is made of an elastic body can have the bottom inner wall surface of the box-shaped container itself made of an elastic body, but usually, an elastic sheet prepared as a rug is box-shaped. It is arranged and arranged on the inner wall surface at the bottom of the container.

The material of the elastic body is not particularly limited as long as it can exert an impact buffering action on the massive coke (1) falling into the box-shaped container (13), and various rubber materials are appropriately selected. Can be adopted. As a rubber substance,
Natural rubber (NR), styrene butadiene rubber (SB
R), chloroprene rubber (CR), nitrile rubber (NB
R), ethylene propylene rubber (EPT / EPT), butyl rubber (IIR), stereo rubber and the like. The hardness (hardness measured by a Shore hardness meter according to JIS Z2246) of the rubber substance is usually in the range of 10 to 60 degrees, preferably 20 to 50 degrees.

A rubber belt conveyor or a waste belt thereof generally used in a coke mill or the like is suitable as the elastic body used in the present invention from the viewpoint of being easily available. In particular, waste belts have the advantage of being inexpensive. The belt of the rubber belt conveyor has a multilayer structure in which, for example, a canvas made of fibers such as nylon, polyester, vinylon, and aramid is laminated on both sides of a cushion rubber sheet, and the above-described laminate is embedded with an upper cover rubber and a lower rubber. Having. Therefore, there is an advantage that the durability is excellent. The belt hardness of a rubber belt conveyor as described above (JIS Z2
Hardness measured with a Shore hardness tester according to 246)
It is about 25 for a new belt and about 45 for a waste belt.

The above-mentioned elastic body is usually used in a thickness of 5 to 15 mm, and is usually used by being fixed to the bottom inner wall surface of the box-shaped container by an appropriate means such as a screw or an adhesive. The elastic body is arranged on the bottom inner wall surface of the box-shaped container, but may be arranged on the side wall surface of the box-shaped container as necessary.

In the present invention, as the box-shaped container (13), it is preferable to use a box-shaped container provided at the bottom with a fork insertion port which can be suspended by a fork when falling down.
And it is more preferable that the side wall of the box-shaped container (13) has a folded or drawn structure.

Box type container (13) exemplified in FIGS.
Is described in, for example, JP-A-7-89546,
It is known per se. That is, the above box-shaped container (1
3) Forklift fork insertion port (14)
Auxiliary wall bodies (16) are detachably attached along four sides of the upper surface of a rectangular upper bottom plate (15a) having bolts (17), and are provided at both ends of the auxiliary wall body (16). Shafts (20) provided at both lower ends of the side wall body (19) are rotatably and upwardly fitted into the side wall body (18) so that the side wall body (19) can be mounted on the auxiliary wall body (16) and the side wall can be freely mounted. Fall prevention leg (21) provided at the lower end of body (19)
Can be inserted into the locking groove (22) provided in the auxiliary wall body (16) from above, and when the side wall body (19) is in an upright state, the adjacent side wall bodies (19) are detachably connected to each other, and the side wall body ( 19) A structure is provided in which four side walls (19) can be freely stacked on the upper bottom plate (15a) in a state where the connection between them is released. Although not shown, the above-described elastic body is arranged on the surface of the upper bottom plate (15a).

As means for detachably connecting the adjacent side walls (19) in the upright state of the side wall (19), the side wall (19) may be connected to the other side wall (19) from both side end surfaces of one side wall (19). ) May be employed, for example, a lock mechanism that protrudes from and engages with both end surface portions. The details thereof can be referred to FIGS. 19 and 20 of the above publication.

In the box-shaped container (13), the fork insertion port (14) is provided with an upper bottom plate (15) provided with a spar.
a) and a lower bottom plate (15b) having a spar are formed integrally with each other. Therefore, as shown in FIG. 5, the fork insertion port (14) hangs on the fork (23) when the fork (23) is inserted thereinto and the box-shaped container (13) is turned over.

The side wall body (19) of the box-shaped container (13) may have a lattice structure for further weight reduction. The size (capacity) of the box-shaped container (13) is appropriately selected, but a typical example is 1100 mm × 1100 mm
× 1100 mm.

The material of the box-type container (13) is not particularly limited as long as it can withstand accommodating and transporting coke. Various plastics, light metals such as aluminum, carbon fiber-impregnated plastics, and aluminum fiber mats are made of aluminum. An impregnated composite material or the like can be used. Plastic is a preferred material because it is lightweight and easy to mold.

Specific examples of the above plastics include:
Examples thereof include thermoplastic resins such as polyolefin resins such as polyethylene, polypropylene and polybutene, polyolefin copolymer resins, polystyrene resins, acrylonitrile-styrene resins, acrylonitrile-styrene-butadiene resins, and polyvinyl chloride resins. Polyolefin resins such as polypropylene resins are relatively inexpensive and can be used preferably. Of course, other heat resistant resins can also be used.

When plastic is used as the material of the box-shaped container (13), lump coke (1) is cut out as follows.
It must be performed after the surface temperature becomes lower than the plastic deformation temperature of the above-mentioned elastic body constituting the bottom inner wall surface of the plastic and the box-shaped container (13). If the cut-out time is too early and the surface temperature of the lump coke (1) exceeds the above-mentioned temperature, the lump coke (1) may be transferred to the lump coke (L) even if the length of the lump coke (1) is within the range of common sense even if there is a transfer process by the connecting conveyor device. The surface temperature of 1) does not drop to a temperature sufficient to accommodate the container in a plastic box.

The plastic deformation temperature of a plastic means its melting point in the case of crystalline plastic and its softening point in the case of amorphous plastic. In the case of the above-listed thermoplastic resins, it is usually sufficient to cut out the lump coke (1) after the surface temperature of the lump coke (1) becomes 80 ° C. or lower. In consideration of the thermal fatigue of plastics, etc., the preferable cutting temperature of the lump coke (1) is 50 ° C. or less, and the more preferable cutting temperature is 40 ° C. or less. The temperature of such massive coke (1) can be easily measured by, for example, a method of inserting a metal rod having a thermocouple embedded in a deposit of massive coke (1) on a wharf (3). I can do it.

In the present invention, the box-shaped container (13) containing the lump coke (1) is loaded on a truck or the like by a forklift and conveyed to a distribution base in addition to a consumption place. At this time, unlike the flexible container, the box-shaped container (13) can be efficiently stacked in a plurality of stages, so that a large amount of coke can be transported by one truck transportation, and the distribution cost can be greatly reduced. It becomes possible. As a result, a large-scale and coke obtained from a coke manufacturing plant obtained as a lump is conveyed to the user.

Then, the unloaded box-shaped container (13)
The discharge of lump coke (1) from
Fork (2) of fork rotation type forklift (24)
This operation is performed efficiently by rotating the box-shaped container (13) by rotating 3). After the coke is conveyed, the box-shaped container (13) is folded and compacted, sent to a manufacturing plant by the same means as described above, and is reused.

In the present invention, various improvements can be added to the box-shaped container (13) as needed. For example, an improvement in providing a drain hole at the bottom of the box-shaped container (13) so as to be able to cope with the rain when storing the massive coke, and the box-shaped container (13) containing the massive coke
(13) In order to prevent the container from overturning when the containers are stacked and transported vertically, there is an improvement such as providing an uneven portion for fitting around the bottom of the box-shaped container and the corresponding upper edge.

[0031]

According to the transfer method of the present invention described above, the following specific effects can be obtained. (1) No extensive coke yard or relay station is required for storage. (2) No loading work by a shovel car is required. (3) It is unlikely that the product coke is crushed to deteriorate the product yield. (4) The transport efficiency is extremely high. (5) The environment is less likely to be deteriorated by dust. (6) Breakage of massive coke dropped and stored in the box-shaped container is prevented. (7) The collapse of the plastic box-shaped container due to the drop of the lump of coke is prevented.

The present invention has a relatively simple structure,
The method of transporting coke obtained as a large-scale lump is based on a novel idea that is not expected to those skilled in the art, and the effect is, as listed above, industrial. It is very remarkable from the point of view.

[Brief description of the drawings]

FIG. 1A is an explanatory plan view showing an example of the transport method of the present invention, and FIG. 1B is a side explanatory view of the transport method shown in FIG. 1A.

FIG. 2 is an exploded explanatory view of an example of a box-shaped container used in the carrying method of the present invention.

FIG. 3 is an explanatory view of an assembled state of the box-shaped container shown in FIG. 2;

FIG. 4 is an explanatory view of the box-shaped container shown in FIG. 2 in a folded state.

FIG. 5 is an explanatory view of the box-shaped container shown in FIG. 2 in an overturned state.

FIG. 6 is an explanatory side view of the vicinity of a wharf of a coke oven.

[Explanation of symbols]

 1: Lump coke 2: Fire extinguishing train 3: Wharf 4: Rotary drum 5: Gate 6: Gate opening / closing mechanism 7: Conveyor device 8: Sieving device 9: Over-sieving product 10: Under-sieving product 11: Connecting conveyor device 12: Connecting conveyor Device 13: Box type container 14: Fork insertion port 24: Fork rotation type forklift

Claims (5)

[Claims] The present invention is characterized in that massive coke discharged into a wharf of a coke oven is cut out and sent to a conveyor device below the wharf, and is conveyed in a box-shaped container having at least a bottom inner wall formed of an elastic body. Coke transport method. 2. The container according to claim 1, wherein the box-shaped container is provided with a fork insertion port at a bottom thereof, which can be suspended by a fork when the container falls down.
Transport method described in 1. 3. The transport method according to claim 1, wherein the side wall of the box-shaped container has a folded or drawn structure. 4. The conveying method according to claim 1, wherein the coke is cut out after the surface temperature of the coke becomes lower than the plastic deformation temperature of the plastic using a plastic box-shaped container. 5. The conveying method according to claim 1, wherein the coke delivered by the conveyor device under the wharf is sieved by a sieving device before being stored in a box-shaped container.