JPS59145281A - Equipment for production of compacted cake from slack coal - Google Patents

Abstract

PURPOSE:To provide the titled equipment which has a molding frame consisting of a small-sized and light-weight movable frame and a fixed outer frame in rigid construction to hold the whole structure and sustain the load of compacting, thus facilitating the compacting and feeding of compacted cake into a coke oven. CONSTITUTION:The equipment has a movable molding frame 1 which is charged with slack coal F to be compacted into cake and a fixed frame 2 which is constructed in a higher rigidity than the frame 1 to secure the whole structure and accomodates the frame 1 removably. The fixed frame 2 is equipped with upper and lower cylinders 7, 17 which are driven by contractin rods 7a, 17a to cause a base plate 5 to ascend and a compacting vat 21 to descend to compact slack coal F into cake. The formed cake is contained in the movable frame 1 and carried into a coke oven 11 on a conveyer.

Description

[Detailed description of the invention] A movable formwork capable of transporting a formwork for compaction-molding powdered coal; a fixed formwork having a rigid structure that holds the outer periphery of the movable formwork and receives the load during compaction-forming; By configuring from
The present invention relates to a pulverized coal compaction cake manufacturing apparatus in which the movable formwork is lightweight and compact, and the operations up to the time of charging the compacted cake into a coke oven are facilitated.

Generally, in order to obtain hard coke, a method is adopted in which powdered coal (coking coal) is compacted to a high density to form a compacted cake, and this is carbonized in a coke oven to produce coke. The problem with adopting this manufacturing method is that first of all, it is necessary to apply a high-pressure consolidation load to the powdered coal, so the molding frame in which the powdered coal is charged needs to have an extremely robust structure. Second, it is necessary to transport the compaction-molded cake safely and quickly from the compaction-molding site to the coke oven without collapsing it due to vibrations or the like.

To overcome this problem, conventional methods used a configuration in which the formwork was placed on a trolley, the compacted cake was molded on the trolley, and the formwork was then transported to the coke oven. However, since the formwork has a sturdy structure and is large and heavy, it is difficult to remove the cake from it, and the cart on which the formwork is mounted also needs to have a strong structure, making it unavoidably large and heavy. is,
There were problems in that the overall size and weight increased, resulting in high manufacturing and operating costs, and the need to strengthen the basic structure that supported the entire system.

In view of these problems, the present invention was devised to effectively solve the problems. The purpose of the present invention is to form a high-density compacted cake, transport it safely and quickly to a coke oven, and easily charge it into the coke oven.
It is an object of the present invention to provide a pulverized coal compaction cake manufacturing device that can reduce foundation load, manufacturing cost, and operating cost.

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In FIGS. 1 to 3, 1 is a transportable movable formwork into which powdered coal is charged to form a compacted cake of powdered coal;
Reference numeral 2 denotes a fixed formwork that removably accommodates the movable formwork 1 and is formed to have a more rigid structure than the movable formwork in order to hold the movable formwork in its entirety. The movable formwork 1 consists of rectangular plate-shaped side frames 1a that are erected in parallel with a predetermined gap between them, and is fixed to the lower end of one of the side frames to cover the bottom open part between these side frames. a bottom frame 1b that pivots the lower end of the side frame of the frame via a shaft 3;
It is mainly composed of a front frame 1C and a rear frame 1d which are fixed to both ends of each via pins 4 so as to cover both open end portions in an openable and closable manner. A base plate 5 is placed on the bottom frame 1b in the movable formwork 1 with its top open, and a power amplifier frame 6 is placed on the rear side of the base plate 5. . The above /< - The spray plate 5 is divided into a rear part 5a on which the backup frame 6 is placed and a front part 5b other than that, and the front part 5b is movable up and down within the movable formwork 1. . In a portion of the bottom frame 1b corresponding to the front portion 5b of the base plate 5, rod insertion holes 8 for inserting rods 7a of the lower cylinder 7 for raising and lowering the front portion 5b are formed at appropriate intervals in the direction of the bottom pitcher force. ing.

On the other hand, the fixed formwork 2 is supported by a lower frame 2a and both sides of the lower frame 2a via pivots 9 so as to be mutually openable and closable in order to form a storage chamber for accommodating the movable formwork 1. The frame is mainly composed of a side frame 2b, and a front frame 2c and a rear frame 2d, which are supported by hooks at the front and rear ends of the side frames 2b so as to be openable and closable. There is.

In the fixed formwork 2, the lower frame 2a covers the bottom frame 1b of the movable formwork 1, the side frames 2b cover the both side frames 1a, the front frame 2c and the rear frame 2d.
supports the front frame 1c and rear frame 1d, respectively. As shown in FIG. 4, the fixed formwork 2 constructed in this manner is installed at a location away from the coke oven 11 with its lower frame 2a fixed to the frame 12. The lower frame 2a is provided with a lower cylinder 7, which is a compacting means for compacting powdered coal, with its rod 7a facing upward and corresponding to the rod insertion hole 8 of the movable formwork 1. The one side frame 2b has a support member 13
The other side frame 2b is supported by the frame 12 via an opening/closing cylinder 14 to prevent it from falling over.
The opening/closing cylinder 14 is driven to rotate about the pivot shaft 9 as a fulcrum. At the upper end of the side frame 2b, there is an expansion regulating rod 15 extending over six of the trenches, and at one end of the regulating rod 15 there is a plurality of water hooks. The fixed common frame 15a is provided with a plurality of pressure jacks 16 in the longitudinal direction of the frame for pressing the side frames 2b and closing the gap between them.

Further, an upper frame 18 for supporting an upper cylinder 17 serving as a compression means is hung from the upper end of the side frame 2b, and one side frame 2b on the fixed side and the upper frame 18, ! The bracket 20 is connected to the other side frame 2b via the pivot 19 and is slidably engaged with the lower surface of the upper frame 18 to allow opening and closing of the side arm 2b. There is. The upper frame 18 is provided with a plurality of upper cylinders 17 with their rods 17a facing downward in correspondence with the lower cylinders 7, and a consolidation foot 21 that can move up and down within the movable formwork 1 is provided at the tip of the rod 17a. installed. The compression foot 21 may be integral or divided.

A hopper 22 is attached to the frame 12 above the side frame 2b to store powdered coal, and has a powdered coal cutting section 22a at the bottom. A conveyor 23 and a chute 24 are connected to guide the molding material to be charged into the movable formwork 1.

In FIG. 4, reference numeral 25 refers to the movable formwork 1 pulled out from the fixed formwork 2 into the coke oven 11'! This is a conveyor for transporting the movable formwork 1, and a loading platform 26 on which the movable formwork 1 is mounted is attached to the conveyor 25. 27 is an extrusion pusher for pushing out the movable formwork 1 in the solid formwork 2 onto the mounting base 26, and 28 is a pusher for pushing out the movable formwork 1 on the mounting base 26.
This is a pusher for pushing the material into the fixed formwork 2.

Next, the operation of the embodiment will be described.

There is a hopper 2 in the movable formwork 1 held in the fixed formwork 2.
Powdered coal supplied from 2 via conveyor 23 and unit 24 is charged from the upper open part, and this charged pulverized coal F is compressed by the elongation operation of upper and lower cylinders γ, 17 rods 7a and 1γa. As the base plate front portion 5b rises and the consolidation foot 21 descends, it is compressed from above and below to form a cake. The load acting on the movable formwork 1 during this consolidation molding is stopped by the fixed formwork 2. That is, the movable formwork 1 is moved by the fixed formwork 2 having a rigid structure.
Since the movable formwork 1 is banked up, it is possible to make the movable formwork 1 a lightweight and compact structure that does not require much strength, thereby facilitating the transportation and opening/closing operation of the movable formwork. In addition, since the structure compresses the pulverized coal from above and below, it is possible to obtain a higher compaction force than the conventional structure in which powder coal is compressed only from above, and the length of the rods 7a and 17a of the cylinder 7.17 can be shortened. Its buckling strength can be increased.

After the compaction cake is formed, the front part 5b of the base plate is pushed back onto the bottom frame 1b by the contraction operation of the lower cylinder 7 and the extension operation of the upper cylinder 17, and then the consolidation foot 2 is pushed back onto the bottom frame 1b.
1 from inside the movable formwork 1 and the lower cylinder 1
The rod 17a of No. 7 is pulled out from the rod insertion hole 8, and the fixed formwork 2 is first opened. At this time, first, the side frame 2b is urged in the closing direction by the pressure jack 16 to make it easier to remove the bottle 10, and the pin 10 on one side of the frame supporting the front frame 2c and rear frame 2d is removed. Front and rear frame 2
Open c and 2d (see Figure 4). Next, by contracting the pressure jack 16 and opening the side frame 21 by the contraction operation of the opening/closing cylinder 14,
The opening of the fixed formwork 2 is completed.

Next, the movable formwork 1 inside the fixed formwork 2 is pushed out in the longitudinal direction by the extrusion pusher 27 and transferred onto the mounting table 26 of the conveyor 25, and the movable formwork 1 is driven by the conveyor 25.
is transported to the front of the charging port of the coke oven 11. During this transportation, the compacted cake is housed in the movable formwork 1 and protected, so there is no risk of it collapsing due to shock or impact, and it can be transported safely and quickly.

The movable formwork 1 carried to the charging port of the coke oven 11 opens its front frame 1C and rear frame 1d, and also opens one side frame 1.
By slightly or fully opening a, the compacted cake can be easily removed, and the compacted cake is removed and charged into the coke oven at the same time. This is done by pushing out the base plate 5 and the cut-up frame 6 from the movable formwork 1 in the longitudinal direction using a pusher or the like (not shown), and charging the consolidated cake together with the base boot rate 5 into the coke oven 11. Once the cake is loaded, the base plate 5 is pulled out from the coke oven 11. At this time, the charging port of the coke oven 11 is covered with the vine up frame 6 so that the compacted cake is not drawn out of the oven.In this way, the compacted cake can be easily charged into the coke oven. Furthermore, since the movable formwork 1 is lightweight, it is possible to reduce the foundation load, and it is easy to transport, requiring only a small amount of power, thereby reducing operating costs.

5 to 7 show modified examples of the movable formwork 1. FIG.

That is, the main difference between this movable formwork 1 and the movable formwork of the previous embodiment is that a spring member 29 is attached to the upper end of the side frame 1a for biasing both the wings in the closing direction. I gave it to you and
Hint the front frame 1c and rear frame 1d to the ~ side frame 1a') 3o
The projections 31 formed on the other ends of the front frame 1c and the rear frame 1d are engaged with the engagement holes 32 formed on the other side frame 1a. Therefore, when the side frame 1a is pushed open by the jack 33 against the spring force of the spring member 29, the protrusions 31 of the front frame 1c and the rear frame 1d are disengaged from the engagement holes 32 and can be opened. . The jack 33 has a rotary engagement hook portion 33a that detachably engages with an engagement groove 34 formed in the side frame 1a, and is disposed on the mounting base 26 of the conveyor 25. 3
Reference numeral 5 designates an insertion hole formed in the bottom frame 11, into which a drive device for charging the compacted cake mounted on the pacegunt 5 into the coke oven is inserted.

In summary, the present invention exhibits the following excellent effects.

(1) It consists of a movable formwork that can transport the formwork for compaction-molding powdered coal, and a fixed formwork with a rigid structure that holds the outer periphery of this movable formwork and receives the load during compaction-forming. Structurally, it is possible to apply a large compaction load to powdered coal to form a high-density compacted cake, and the movable formwork can be made light and compact for easy handling.

(2) Since the compacted cake can be transported to the coke oven while housed in a movable mold, there is no risk of the compacted cake collapsing due to vibrations, shocks, etc., and the compacted cake can be transported safely and quickly. I can do it.

(3) Since the movable formwork can be made lightweight, the foundation load can be reduced, and operations such as transportation can be facilitated, leading to a reduction in operating costs.

(4) Since the manufacturing weight of the movable formwork can be reduced, costs can be reduced.

[Brief explanation of drawings]

The drawings show preferred embodiments of the present invention; FIG. 1 is a sectional view of a pulverized coal compaction manufacturing device, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a schematic plan view of the same device. Fig. 4 is a plan view showing the system for transporting the compacted cake to the coke oven, Fig. 5 is a partially cutaway side view showing a modification of the moving formwork, Fig. 6 is the same plan view, and Fig. 7 is the same cross section. It is a diagram. In the figure, 1 is a movable formwork, 2 is a fixed formwork, and 7 and 17 are compaction means. Patent Applicant: Ishikawajima-Harima Heavy Industries Co., Ltd. Representative Patent Attorney Nobuo Kinutani Figure 1, Figure 2, Figure 3O, Figure 4, Figure 5, Figure 6

Claims (1)

[Claims] A transportable movable formwork into which powdered coal is charged in order to form a compacted cake of powdered coal, and a movable formwork that removably accommodates the movable formwork and is formed to have a more rigid structure than the movable formwork in order to hold the whole. A pulverized coal compaction cake manufacturing apparatus comprising: a fixed form; and a compacting means provided on the fixed form for compacting pulverized coal charged into the movable form.