JPH0441159Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a dust collector in a coke oven, etc., and in particular, a plurality of openings are formed in the longitudinal direction on the upper surface of a horizontally arranged dust collection duct, and each opening is closed from above. The present invention relates to an improvement in a dust collector in which the lid is attached so as to be openable and closable, and the lid is sequentially opened and dust is collected from the opening by a movable dust collector that moves along the dust collection duct.

[Conventional technology]

A conventional dust collector, for example, a dust collector in a coke oven, is designed as shown in FIGS. 2 to 5. The coke oven 1 has carbonization chambers 2 and combustion chambers 3 arranged alternately, and usually about 50 to 100 carbonization chambers 2 are arranged in parallel. The coke in the carbonization chamber 2 is transferred to the second coke by the extruder 4.
In the figure and FIG. 3, it is pushed out to the left and is guided by the guide car 5 waiting on the exit side.
Further, the coke falls onto the bucket truck 6 placed on the lower left side of the coke, but since dust is generated during this fall, a dust collection hood 7 is attached to the coke outlet side of the guide car 5 to remove the coke from the guide car 5. It covers the exit and the top of the bucket truck 6. A substantially horizontal dust collecting duct 8 is arranged below the downward suction port 7A of the dust collecting hood 7 and parallel to the moving direction of the guide wheel 5. On the upper surface of this dust collection duct 8, there is a space opposite to the suction port 7A of the dust collection hood 7, and the coke oven 1
The same number of openings 9 as the carbonization chambers 2 are formed at the same pitch as the carbonization chambers 2 in the figure. These openings 9 are closed by iron lids 10 placed from above, and are opened and closed by lifting magnets 11 provided on the side of the dust collection hood 7 for removing and removing the lids. . Therefore, the dust collection hood 7 is integrated with the guide wheel 5 and synchronized with the bucket wheel 6 to move the coke oven 1.
When moving along the lid 10 of the corresponding opening 9
is opened by a magnet 11 for removing and removing the lid, and the dust in the dust collection hood 7 is sucked out into the dust collection duct 8 from here. Reference numeral 12 in the figure is a hydraulic cylinder for vertically driving the lifting magnet 11 for attaching and removing the lid, 13 is a coal loading car for supplying coal into the coke oven 1, and 14 is an extruder 4 for moving the extruder 4 into the coke oven 1. Each of the push cars for sequentially moving along the line is shown. The outer periphery of the opening 9 in the dust collection duct 8 is
A duct lid seat 15 that protrudes from the general surface of the dust collection duct 8 is attached. On the other hand, the lid 10 is made of a circular iron plate, as shown in FIGS. Once upon a time, when descending,
The lid 10 and the opening 9 are aligned. Here, conventionally, the lid 10 directly contacts the duct lid seat 15 of the opening 9 to close the opening 9, or
Alternatively, some sealing material may be attached to the back surface of the lid 10 or the upper surface of the duct lid seat 15 to close the opening 9.

[Problem that the invention attempts to solve]

Generally, the operating range of the hydraulic cylinder 12 driving device for driving the lifting magnet 11 for removing and removing the lid is controlled by a limit switch or the like.
0 and the duct cover seat 15 may be subjected to a large load. In this case, the lid 10 and/or the duct lid seat 15
If deformation occurs and there is no sealing material interposed between the two, a gap corresponding to the amount of deformation will occur, and even if a sealing material is provided, if the deformation is large, the sealing material will be damaged. Since the air cannot be followed due to its elasticity, a gap still occurs, and the dust collection duct 10 sucks the atmosphere from this part, resulting in a problem in that the amount of suction air from the dust collection hood 7 decreases. In particular, when the number of openings 9 in the dust collection duct 8 is large, leakage from the gaps may accumulate and the dust collection air volume may be halved. This idea was created in view of the above-mentioned conventional problems.It has a simple structure, improves the seal between the opening of the dust collection duct and its lid, and prevents leakage from the gap between the two. It is an object of the present invention to provide a dust collector that reduces the amount of dust.

[Means to solve the problem]

This idea involves forming a plurality of openings in the longitudinal direction on the upper surface of a horizontally arranged dust collection duct, and attaching a cover to each opening so that it can be opened and closed from above to close it from above. In the dust collector, the lid is sequentially opened and dust is collected from the opening by a movable dust collection equipment that moves along the lid, and the lid is made of a flexible material having approximately the same diameter as the lid, and the lid is closed at the center. a sealing material that is supported on the back side of the central part of the lid, and whose outer peripheral part hangs down due to its own weight so that it can come into contact with the upper surface of the peripheral edge of the opening; The above object is achieved by providing a plate member that prevents the outer periphery of the sealing material from sagging by more than a certain amount and also supports a centering guide member for centering when the lid is lowered. be.

[Effect]

In this invention, the outer peripheral part of the sealing material whose center part is supported on the back side of the lid can hang down under its own weight and come into contact with the upper surface of the peripheral edge of the opening, so even if there is a gap between the lid and the opening, the outer peripheral part of the sealing material is The outer periphery of the seal material hangs down and makes contact, and the outer periphery of the seal material is brought into close contact with the opening by the negative pressure of the duct.
It is possible to prevent leakage from gaps.

【Example】

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is a dust collector for a coke oven 1 as shown in FIG. 2 and FIG. While forming the opening 9,
A movable dust collection equipment including a dust collection hood 7 which moves along the dust collection duct 8 and has a cover 20 attached to each opening 9 from above so as to be openable and closable,
In a dust collector in which the lid 20 is sequentially opened to collect dust from the opening 9, the dust collector is made of a flexible material having approximately the same diameter as the lid 20, and the central portion 24A is located on the back side of the central portion 20A of the lid 20. In addition to being supported by
A sealing material 24 whose outer peripheral portion 24B hangs down due to its own weight and can come into contact with the upper surface of the peripheral edge of the opening 9.
Then, at the lower position of this sealing material 24, the lid 20
The outer peripheral part 2 of the sealing material 24 is supported on the back side of the sealing material 24.
A plate member 26 is provided to prevent the lid 20 from hanging down by more than a certain amount and to support a centering guide member 16 for centering when the lid 20 is lowered. As the flexible material for the sealing material 24, synthetic rubber with excellent heat resistance is used. Particularly suitable is a heat-resistant conveyor belt made of reinforcing mesh cloth that has excellent heat resistance and strength. An example of a flexible material with excellent heat resistance and strength is a synthetic rubber made of chloroprene polymer known as neoprene, with a core of reinforced net fabric such as a woven fabric called monoply or steel cord. There is something like a body. The means for attaching the center part 24A of the sealing material 24 to the center part 20A of the lid 20 is a hole 24C in the center of the sealing material 24, as shown in FIG.
The spacer 2 is provided with a stepped portion 28A for penetrating the hole 24C and pressing the peripheral edge of the hole 24C from below.
8, together with the plate member 26, are tightened and fixed to the lid 20 with bolts 30A and nuts 30B. Here, the bolt 30A is a stud bolt fixed to the back surface of the lid 20. In this embodiment, for example, when the duct lid seat 15 of the opening 9 is deformed downward on the right side in FIG. and its top surface is touched. Furthermore, when negative pressure is generated in the dust collecting duct 8 due to suction in this state, the sealing material 24 is pressed against the duct lid seat 15 by the negative pressure, and the seal between the two is completed. The amount of deformation of the duct lid seat 15 with respect to the lid 20 is
For example, even if the left and right sides are different as shown in FIG. 1, the sealing material 24 deforms to follow the duct lid seat 15, making it possible to complete the seal. In addition, if the sealing material 24 is damaged, the plate member 26 and the spacer 28 can be removed by loosening the nut 30B, and the sealing material 24 can be easily replaced. Further, since the outer peripheral portion 24B of the sealing material 24 can sag due to its own weight, if the amount of sagging is large, the diameter in the sagging state becomes smaller than the inner diameter of the opening 9, and the sealing material 2
4 may not be able to contact the duct lid seat 15, and sealing may not be possible. This can be prevented by suppressing drooping that exceeds the amount. Although the dust collector in the above embodiment is related to a coke oven, the present invention is not limited to this, and the movable dust collector is used to sequentially collect dust from a plurality of openings formed in the dust collection duct. This is generally applied to dust collection equipment designed to collect dust.

[Effect of the idea]

Since the present invention is configured as described above, it is possible to prevent a gap from forming between the opening of the dust collection duct and the lid, suppress leakage from the gap, and increase dust collection efficiency. It has this excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the main parts of an embodiment of a dust collector according to the present invention, FIG. 2 is a schematic cross-sectional view showing a coke oven and a conventional dust collector used therein, and FIG.
The figure is a plan view of the same, Figure 4 is a plane view showing the dust collection duct in the conventional dust collector, and Figure 5 is the V of Figure 4.
It is an enlarged sectional view along the -V line. 8... Dust collection duct, 9... Opening, 15... Duct lid seat, 16... Guide member, 20... Lid, 2
0A...Center, 24...Sealing material, 24A...
Center part, 24B...Outer peripheral part, 26...Plate member.

Claims (1)

[Scope of utility model registration request] A plurality of openings are formed in the upper surface of a horizontally arranged dust collection duct in its longitudinal direction, and a cover that closes the opening from above is attached to each opening so as to be openable and closable, and the lid is moved along the dust collection duct. In a dust collector in which the lids are sequentially opened and dust is collected from the openings by means of a mobile dust collector, the dust collector is made of a flexible material having approximately the same diameter as the lid, and the back side of the central part of the lid is located at the center. a sealing material that is supported by the opening, and whose outer peripheral portion hangs down due to its own weight and is capable of contacting the upper surface of the peripheral edge of the opening, and a lower position of the sealing material,
a plate member supported on the back side of the lid to prevent the outer peripheral portion of the sealing material from hanging down more than a certain amount and to support a centering guide member for centering when the lid is lowered; A dust collector characterized by: