JPH06299157A - Dust-collection method at pusher-side opening of coke oven and apparatus for performing the method - Google Patents

Abstract

PURPOSE:To perform the dust-collection at a pusher-side opening in increased dust- collection efficiency at reduced equipment cost by fixing a dust-collection hood bent in a U-form and opened at the bent part and placing a duct-suction port connected to a dust collector near the other end of the hood. CONSTITUTION:An end of a movable large-diameter pipe 23 is placed in a state freely fittable in air-tight state at the suction port of a duct 25 connected to a dust collector 24. An upper dust-collection hood 1 having U-shaped cross section in the direction of width and provided with an opening 7 at the bent part 6 is fixed near the other end of the large-diameter pipe 23. The generated dust, generated smoke, leaked smoke, powdery dust 9, etc., emitting from the pusher-side opening 3 of the coke oven 2 are guided to a space in the longitudinal direction of the upper dust-collection hood 1. A suction connector 13 for a pushing opening is connected to the opening 7 of the upper dust-collection hood 1, auxiliary connectors 12, 14 are connected to both sides of the suction connector and connectors 11, 15 for sealing the opening and an upper connector 20 of a cleaner are connected at the part outside of the auxiliary connectors. Dust is collected through suction pipes 18, 26 and the large-diameter pipe 23 into the dust collector 24 while sucking through these connectors.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for collecting dust from a kiln at the extrusion side of a coke oven and a dust collecting facility for carrying out the method. In other words, for example, it is possible to collect dust on the extrusion side of the extrusion side kiln of the coke oven close to 100% including the leakage of smoke. It is intended to provide a dust collection facility for carrying out the method. Hereinafter, in the description of the present invention, the term dust collection means dust collection by introducing dust, dust, smoke, and smoke to a dust collector, without particularly describing dust, dust, smoke, and smoke. For example, even if described as dust, dust, smoke, leak smoke, etc. are included depending on the case of explanation.

[0002]

2. Description of the Related Art Conventionally, in the operation of a coke oven, efforts have been made to collect dust that is inevitably generated and not hinder the working environment. Of course, in addition to this, there may be a case where the stable maintenance or improvement of the operation results in the coke oven operation is considered. In the first place, the coke oven dust collection method has a long history, and various methods have been proposed since about 1940 to 1940, in line with the history of the development of the steel industry. Therefore, it seems that the dust collecting method is devised so that the dust collecting purpose is narrowed down with the change of technology and the dust collecting effect is further improved.

For example, when focusing on the kiln mouth dust collection system on the extrusion side of the coke oven, one example that the present inventors grasp can be roughly classified into the following three types of dust collection systems. A. Extrusion side kiln mouth upper fixed hood dust collection method The outline of this method is to install a fixed hood on the extrusion side kiln mouth upper part,
Further, a fixed dust collecting duct is provided on the upper part thereof, and when the furnace lid is taken out and pushed out, the dust is collected by opening and closing a damper provided with a fixed hood between the fixed ducts, and there are the following prior art examples. a. Japanese Patent Laid-Open No. 53-124508 "Coke oven extruder dust collector"

In this "a. Extrusion-side kiln mouth upper fixed hood dust collection method", the dust collection effect can be expected by providing the upper fixed hood, but the structure of the dust collection device I have a problem. 1) When a fixed hood, a dust collection duct, etc. are provided above the kiln opening on the extrusion side, the load applied to the backstay increases, and in the case of the existing backstay, problems with strength occur. Therefore, in addition to the new coke oven, when a fixed hood for collecting dust and a dust collecting duct are installed, it is necessary to newly adopt a measure for increasing the strength of the back stay, resulting in high capital investment. On the contrary, if the measures to strengthen the backstay are not adopted, the equipment design will naturally be within the allowable strength of the backstay, so the fixed hood, dust collection duct, etc. should be of a scale that cannot expect the dust collection effect. And cannot solve the problem. 2) In a coke oven, the dry main is generally arranged above the kiln on the extrusion side. Therefore, it is very difficult in terms of layout to newly install a fixed hood, a dust collection duct, etc. in the existing oven. 3) It is normal that there is no room in the dimensions of the dry main and the upper part of the kiln. Therefore, a hood having a shape suitable for collecting dust cannot be arranged. 4) Tar contained in the smoke generated from the kiln causes the damper placed between the fixed hood and the dust collection duct to stick,
It becomes difficult to open and close the damper, resulting in a decrease in dust collection efficiency due to an increase in the amount of leaked air. 5) It has no effect on dust and smoke emitted from the bottom of the kiln.

B. Extruder-Mounted Hood Dust Collection System The outline of the system is a system in which dust is collected and smoke is collected by a dust collector or a dust collection duct installed in the extruder, and there are the following prior art examples. b. No. 52-12560, "Dust collector for coke oven extruder" c. No. 52-127036, "Coke oven dust collector for furnace lid" d. JP-A-53-60902 "Operating soot diffusion prevention device for coke oven" e. JP-A-53-74501 "Dust collector for coke manufacturing equipment" f. No. 54-120567 "Dust collecting hood mechanism for extruder of coke oven" g. No. 57-167748 "Extruder-side dust collector in coke oven"

This "a. Extruder-mounted hood dust collection method"
Although the dust collection effect can be expected more by providing the hood than before, there are the following problems from the configuration of the dust collection device. 1) When a hood is provided on the extruder and at the upper part of the kiln, dust collection and smoke collection efficiency decrease because a gap is created in the main body of the coke oven. 2) Since the distance between the extruder and the dry main is small, a hood with high dust collection efficiency cannot be provided. 3) If a fixed hood is provided on the upper part of the extruder, it will hinder the repair of the lifter, extrusion beam, etc., and if the machine is placed inside the hood, heat dissipation may be hindered or malfunction due to dust may occur. There is concern about equal damage. 4) It has no effect on dust and smoke emitted from the bottom of the kiln. 5) The load to be loaded on the extruder is increased and the wheel load is increased.
This will hinder the track and increase maintenance and inspection.

C. Dust collection method that covers the entire extruder This method is a method that, when collecting dust that is generated on the extruder side, a cover that covers the entire extruder suppresses scattering to collect dust. is there. h. No. 54-125068 “Dust collecting hood mechanism for extruder of coke oven” However, in this method, since the entire extruder is covered with a cover, the weight of the extruder becomes excessive, the capital investment scale increases, and smoke leakage occurs. There is a problem that fine dust collection is impossible.

From the viewpoint of deceptive prior art, the dust collection at the extrusion side kiln mouth intended by the present invention is quite appropriate with these methods, and it is suitable for smoke and dust from the bottom of the kiln mouth. It is hard to say that it is a dust method, and considering today's world trends, it is a prudent measure for a person skilled in the art to develop a dust collection method that raises the one-step level for the extrusion side kiln mouth dust collection of the coke oven.

[0009]

DISCLOSURE OF THE INVENTION The present invention was devised in view of the deceptive technical background so that it can be carried out in a state in which the dust collection efficiency of the coke oven extrusion side kiln mouth is better than before. There are technical challenges. 1) Dust, smoke, leakage, etc. that come out from the kiln on the extrusion side and other things that may interfere with the work environment can be guided to the dust collector as much as possible compared with the conventional one, and dust collection effect and dust collection efficiency To be able to improve such things. 2) The various devices that make up the dust collection facility shall not interfere with the work of the kiln on the extrusion side of the coke oven, other coke oven operations, and productivity. 3) Able to save energy for dust collection. 4) The amount of capital investment is low. 5) Easy equipment maintenance. 6) Even if there are differences in the design conditions of the coke oven, the present invention can be adopted without changing the basic equipment configuration requirements.

[0010]

The present invention provides means for solving the following features in order to achieve a deceptive technical problem.

[0011]

[First feature] An end of a movable large-diameter conduit is slidably fitted or slidable in an airtight state at a suction port of a duct connected to a dust collector, and is collected near the other end of the large-diameter conduit. When a dust hood is installed to collect dust from the kiln at the extrusion side of the coke oven, dust, fumes, smoke, dust, etc. that come out of the kiln at the extrusion side of the coke oven are collected from the furnace length above the kiln at the extrusion side of the carbonization chamber. Direction of the upper dust collecting hood provided in the direction of the lengthwise direction of the upper dust collecting hood, the speed is reduced and drifts. Is in contact with the connector for the suction kiln opening, and the first and second sucking kilns are provided in the openings on both sides of the connector for the suction kiln respectively.
Auxiliary connector is abutted, and there is dust, smoke, leak, dust, etc. floating in the upper dust collection hood. The second opening closing connector abuts the lid so as to close it so as to suppress excessive suction of the atmosphere, and the cleaner upper connector for suction abuts on the opening near the top of the cleaner, so that each suction A method for collecting dust from a coke oven on the extrusion side of a coke oven, in which dust, smoke, leaks, dust, etc. are sucked by a connector for use and guided to a dust collector through various conduits.

[0012]

[Second feature] A plurality of lower dust collecting hoods having openings facing each other are provided in the third suction conduit on both sides of the lower part of the extrusion side kiln opening of the carbonization chamber so as to be retractable from the vicinity of the kiln opening. One end is provided in the vicinity of the closed end of the first suction conduit, and dust, smoke, leaks, dust, etc. are sucked from the opening and guided to the dust collector through each conduit. , Extrusion side kiln mouth dust collection method of coke oven.

[0013]

[Third feature] The extrusion side kiln port dust collecting method of the coke oven according to the first feature and the second feature, characterized in that the upper side dust collector hood and the lower dust collector hood collect dust on the extrusion side kiln port.

[0014]

[Fourth feature] A leveling connector for suction is brought into contact with the opening near the kiln opening during leveling, and dust, smoke, leaks, dust, etc. are sucked and guided to the dust collector through various conduits. A method for collecting dust on the extrusion side of a coke oven according to the first feature, the second feature, and the third feature.

[0015]

[Fifth feature] One end of a large-diameter conduit to be mounted on an extruder is provided in a suction port of a duct connected to a dust collector so as to be fit or slidable in an airtight state, and a dust collecting hood is provided near the other end. A facility for collecting dust at the extrusion side kiln mouth of a coke oven, characterized by being configured by combining the following essential structural requirements 1) A to 2) L. Equipment for implementing the dust method 1) Structure of the dust collecting hood above the extrusion kiln in the carbonization chamber A. The upper part of the extruder-side kiln mouth, which has a U-shaped tip protruding toward the front at the extrusion-side kiln mouth of the carbonization chamber, and has an opening for suction in the vertical plane of the bent part Provide a hood. 2) Configuration of dust collecting equipment mounted on the extruder B. A first opening closing connector, which can be moved forward and closed, is provided in the first suction conduit in a retractable manner at the opening of the upper dust collecting hood of the kiln mouth. C. A first auxiliary connector, which can be moved forward and freely contactable with the opening of the upper dust collection hood of the kiln, is provided in the first suction conduit in a stretchable manner. D. An extrusion kiln cotter, which is moved forward and is freely contactable with the opening, of the upper dust collection hood of the kiln mouth is provided in the first suction conduit in a stretchable manner. E. A second auxiliary connector, which can be moved forward and freely contactable with the opening of the upper dust collection hood of the kiln, is provided in the first suction conduit in a stretchable manner. F. A second opening closing cotter that can be moved forward and closed to the opening of the upper dust collection hood of the kiln is
Provide in the suction conduit. G. A cleaner upper connector that moves forward and can freely contact the above opening of the upper dust collection hood of the kiln
Provide in the suction conduit. H. The first suction conduit is provided in the large diameter conduit. I. A leveling connector that advances forward and is freely contactable with the second suction conduit is provided in the second suction conduit in the opening of the upper dust collection hood of the kiln, and the second suction conduit is provided in the large diameter conduit.

[0016]

[Sixth feature] The extrusion side kiln mouth dust collecting equipment of the coke oven as described in the fifth feature, characterized in that the following essential structural requirements G are provided. J. The first suction conduit is provided with a first switching damper that can be opened and closed, and a second switching damper between the first suction conduit and the cleaner upper connector.

[0017]

[Seventh feature] The extrusion side kiln mouth dust collecting equipment of the coke oven according to the fifth feature and the sixth feature, characterized in that the following essential constituent requirements H are provided. K. A plurality of lower dust collecting hoods having openings facing each other are provided on the third suction conduit so as to be retractable from the vicinity of the kiln opening at both sides of the lower part of the extrusion side kiln opening of the carbonization chamber, and one end of these third suction conduits is provided. The lower suction hood is provided near the closed end of the first suction conduit, and these lower dust collecting hoods are movably provided together with the extruder.

[0018]

[Eighth feature] The extrusion side kiln mouth dust collector of the coke oven as described in the fifth feature, the sixth feature, and the seventh feature, characterized in that the following essential constituent features I are provided. L. The third suction conduit is provided with a third switching damper, a fourth switching damper, and a fifth switching damper that can be opened and closed.

The present invention is characterized by the solution means as described above, but the limitation of the means is based on the following reasons. An upper dust collecting hood is fixedly provided in the furnace length direction above the extrusion side kiln, and the shape of the upper dust collecting hood, that is, the cross-sectional shape in the width direction, is such that the tip of the piece protruding forward is U-shaped. The reason why the suction opening is bent in the vertical direction and the suction opening is provided on the vertical surface of the bending portion is as follows. In the case of a room type coke oven, the vicinity of the kiln opening on the extrusion side is, for example, the entire traveling direction of the extruder due to the relationship of the extruder, other coke oven auxiliary equipment, etc., and the extension direction of the kiln opening, that is, the running direction of the extruder. On the other hand, the dimension in the direction perpendicular to it is narrow. Therefore, it is physically impossible to reduce the speed of dust generation, smoke generation, smoke leakage, dust, etc. coming out from the extrusion side kiln in a direction orthogonal to the running direction of the extruder. Therefore, in the present invention, the speed of dust, smoke, leakage, dust, etc., that emerges from the extrusion side kiln is also introduced into the space in the lengthwise direction inside the upper dust collector hood to slow down and slow down the speed, and the upper dust hood. The cross-sectional shape in the width direction of the above is solved under the combined condition that the tip of the piece protruding forward is bent in a U shape and the bending prevents the outflow amount (including the leakage amount) from the upper dust collector hood as much as possible. Therefore, these limiting conditions are indispensable constituent requirements.

The reason why the suction opening is provided on the vertical surface of the bent portion of the upper dust collecting hood so as to oppose the vicinity of each kiln opening is as follows. These openings are in contact with, for example, a connector for a suction kiln for suction that is connected to the dust collector through various pipes, a first auxiliary connector, a second auxiliary connector, and a cleaner upper connector, for example, by making surface contact with the dust collector. Dust, smoke,
It is an indispensable constituent element to guide smoke and dust. Further, the opening is brought into contact with the first opening closing connector and the second opening closing connector, for example, by closing the lid to surely reduce the speed in the upper dust collecting hood from each suction connector. Dust, smoke, smoke, dust, and so on are essential constituents for securing and / or maintaining the physical conditions leading from the suction connectors to the dust collector. In addition, the opening to be closed, dust, smoke, drifting at a reduced speed in the length direction in the upper dust collection hood,
Close the lid near the boundary between smoke and dust and the atmosphere with the first opening closing connector and the second opening closing connector,
It is also an essential constituent requirement for making it difficult to suck an excessive amount of air from each of the above-mentioned suction connectors. Furthermore, these openings are indispensable constituent elements in order to contribute to balance with the atmosphere inside and outside the upper dust collecting hood. Therefore, preferably, it is provided so as to face the extrusion side kiln opening, for example, the balance between the amount of dust emitted from the kiln opening and the function of guiding in the longitudinal direction inside the upper dust collecting hood, and the atmosphere inside and outside the upper dust collecting hood. When the balance of the above is not possible due to the design structure, an opening may be provided at a position that does not face the kiln opening, so in the present invention, the position facing the kiln opening is also included in the expression near the kiln opening. If the closing of the opening can be matched with the amount of dust, smoke, leaks, dust, etc. that come out from the extrusion side kiln,
Since physically reasonable suction can be performed, it can contribute to the energy saving effect of the dust collector and other factors. Therefore, in the present invention, the expression "at the opening near the boundary between dust, smoke, leakage, dust, etc. and the atmosphere that is decelerated and drifted in the upper dust hood is expressed as Includes a balanced area.

These are connectors for extrusion kilns for suction,
The first auxiliary connector, the second auxiliary connector, the cleaner upper connector, the connector for closing the first opening, the connector for closing the second opening, and the leveling connector simultaneously move forward and backward in the same direction to perform a retractable movement. For the following reasons. The operation of the coke oven is generally performed in the steps of charging, carbonization, kiln placement (soaking time), kiln removal, leveling, and the like. Therefore, since the carbonization chamber in the furnace length direction is operated in any of these operating processes, in order to perform dust collection at the extrusion side kiln that satisfies these operating processes, each connector as described above Since it is essential for the robot to perform a retractable movement that moves forward and backward in the same direction at the same time, this is limited.

Centering around the kiln opening during extrusion, an extrusion kiln opening connector for suction is brought into contact with the opening near the kiln opening, and the first auxiliary member is attached to each of the openings on both sides of the connector. Abutting the connector and the second auxiliary connector, the first opening is closed on both sides in the length direction inside the upper dust collector hood, at the respective openings in the vicinity of the boundary between the dust, etc. drifting at a reduced speed and the atmosphere. The reason why the dust collecting connector and the second opening closing connector are brought into contact with each other to collect dust by suction is limited based on the following reason. Guided in the length direction inside the upper dust collector hood, the speed is slowed down to suction and collect dust, smoke, smoke, dust, etc. A suction volume that matches the volume is required. In order to satisfy the technical problem in the present invention, suction is performed at the opening near the kiln mouth during extrusion so that suction that is compatible with the large amount drifted in the length direction in the upper dust collection hood and the high speed can be performed. The extrusion kiln opening connector of (1) is abutted with the first auxiliary connector and the second auxiliary connector at the openings on both sides of the connector so that suction can be performed. Of course, in the opening near the boundary between the atmosphere and both sides of the dust, etc. drifting in the lengthwise direction in the upper dust collecting hood and slowed down, the first opening closing connector and the second opening closing Connector for contact,
It contributes so that an excessive amount of air will not enter and hinder the suction function from each of the suction connectors. It is limited as an indispensable constituent requirement so that the deceptive physical function can be exhibited.

A plurality of dust collecting hoods having openings facing each other are provided in the third suction conduit so as to be retractable from the vicinity of the kiln opening on both sides of the lower side of the extrusion side kiln opening of the carbonization chamber, and dust is generated through various conduits connected to the dust collector, The reason for limiting the introduction of smoke, leakage, and dust is as follows. In the vicinity of the lower part of the kiln on the extrusion side during extrusion, the way dust, smoke, leaks, dust, etc. appear differently than the upper part, so in order to guide it to the dust collector in a state compatible with that behavior,
A plurality of dust collection hoods are provided on both sides of the lower part of the kiln so that the openings face each other so as to be retractable from the vicinity of the kiln, and it is essential to guide the dust to the dust collector through various conduits.
Further, it is essential to provide a plurality of dust-collecting hoods having opposing openings in the third suction conduit so as to be retractable from the vicinity of the kiln opening in order not to hinder the operation of the lid catching machine.

The reason why the upper side dust collecting hood and the lower side dust collecting hood simultaneously collect dust on the extrusion side kiln is as follows. During the extrusion, dust, smoke, and leakage from the kiln mouth of the carbonization chamber on the extrusion side,
Dust and the like, when viewed in the furnace height direction of the kiln, are different in the behavior, quantity, speed, quality, type, etc. of discharge in the upper direction and the lower direction. Further, one of the technical problems of the present invention is to collect dust from all things coming out of the kiln mouth as much as possible to obtain a more remarkable dust collecting effect than before. Therefore, within the short distance range of the entire kiln, the suction function is divided into the upper and lower parts of the kiln and shared, and it is indispensable to secure the condition that can satisfy the physical condition for suction dust collection.

A leveling connector for suction is provided in the second suction conduit so as to extend and retract, and each of the other connectors is provided in the first suction conduit so as to extend and retract, so that the timing of suction can be adjusted. The distinction is based on the following reasons. Since the steps of extrusion and leveling in the carbonization chamber are determined by the operating process of the coke oven, there is a time lag between them. Therefore, the amount of dust, smoke, leak, dust, etc. generated from the kiln opening on the extrusion side during leveling differs in the amount, speed, quality, and type of discharge. Therefore, one of the technical problems of the present invention is to collect all the things that come out of the kiln mouth as much as possible and obtain a more remarkable dust collecting effect than before, so that a leveling connector for suctioning is used. Since the technical problem of the present invention can be achieved by providing a suction system in addition to other various connectors, this is limited to this as an essential component.

Providing the first to fifth switching dampers which can be freely opened and closed to the first suction conduit, the second suction conduit, and the third suction conduit allows the amount of suction from the above various suction connectors, the suction timing, Limited because it is essential for selecting, adjusting, and controlling the connector to be sucked.

The lower dust collecting hood, the first suction conduit, the second suction conduit, the third suction conduit, the large-diameter conduit, the above-mentioned various connectors and their driving devices are installed in the extruder for the operation of the coke oven. Depending on the process, it is necessary to move the dust collector equipment in the length direction of the coke oven. Since there is a problem in providing a new moving device, equipment, etc. for this movement from the viewpoint of the amount of capital investment, the dimensional area of the place, etc., it is wise to install it in an extruder as is conventionally seen, and is limited.

The lower dust collecting hood, the first suction conduit, the second suction conduit, the third suction conduit, the large-diameter conduit, the above-mentioned various connectors and their driving devices are installed in the extruder for the operation of a coke oven. It is necessary to sequentially move the carbonization chamber based on the process. Therefore, it is wise to install a new moving device or equipment in the extruder as before because it requires only a capital investment, a narrow installation size, and an area. To do.

There are various methods for attaching the end of the large-diameter conduit in the facility of the present invention on the dust collector side to the dust collecting duct connected to the dust collector along with the movement of the extruder while keeping the airtightness. For example, a dust collecting duct connected to the dust collector is arranged on the ground along the running direction of the extruder, and the end of the large-diameter duct is configured to be freely engageable with the mouth of the dust collecting duct for maintaining a confidential state. Or the end of the large-diameter duct is slidably connected to the mouth of the dust collecting duct to maintain the airtight state, or the dust collecting duct connected to the dust collector is kept in the airtight state. This may be mounted on a trolley so as to be extendable and retractable, or there is another, and this may be selected by a party who carries out the invention and is not limited in the present invention.

Since the above-mentioned first to eighth features of the present invention further exert the following example functions (including effects),
It is an indispensable constituent requirement also in order to satisfy this technical subject. 1) In the furnace length direction above the kiln mouth of the coke oven, a suction duct for collecting dust by installing only an upper dust collection hood is installed in the extruder as a connector system, and the backstay of the coke oven is installed. The load can be reduced, which can also improve the life problem associated with the aging of coke ovens. 2) If the upper dust collecting hood is made of SUS thin plate, the load can be further reduced and the heat resistance can be improved. Therefore, it should be selected to maintain the function of the hood. Is preferred. 3) The upper dust collecting hood at the upper part of the kiln mouth of the coke oven is fixed firmly to the furnace body in the furnace length direction, so there is no escape route for dust, smoke, smoke leaks, dust, etc. In addition, it can contribute to a marked improvement in smoke collection effect. 4) As described above, by making the cleaner upper connector for suction contact the opening of the upper dust collecting hood freely, dust is generated from the furnace lid or the like that has reached the furnace lid cleaning position,
Since smoke, leakage, and dust can be sucked in, the dust collection effect can be further improved. 5) A plurality of lower dust-collecting hoods facing the openings on both sides of the lower part of the extrusion side kiln of the carbonization chamber can be retracted from near the kiln mouth.
By providing one end of these third suction conduits in the vicinity of the closing end of the first suction conduit and providing these lower dust collection hoods with the extruder so as to be movable. Also, it can collect smoke, dust, etc. generated from the bottom of the kiln when removing the lid, returning coke, etc. without hindering the turning of the lifter, so the dust collection efficiency and smoke collection efficiency in coke oven operation, etc. Can be significantly improved. 6) No dust collecting hood is provided on the lifter or the upper part of the extrusion beam, so it does not hinder repair and hinders heat dissipation.
There is no risk of equipment failure due to dust accumulation. 7) Even if smoke, dust, etc. are diffused by the wind when removing the lid, pushing, etc., the upper dust collection hood fixed to the upper part of the kiln and both sides of the kiln can be connected to collect dust.
Most of diffused smoke and diffused dust can be collected. In addition, the lid (blind plate) can be connected to the opening of the upper dust collection hood that contacts the connectors on both sides of the kiln, increasing the dust collection efficiency of diffused smoke. be able to. 8) The upper dust collection hood fixed to the upper part of the kiln is attached to the upper part of the extrusion side kiln of the carbonization chamber, the tip of the piece protruding forward is bent in a U-shape, and sucked in the vertical plane of the bent part. Since it is configured to have an opening for use, dust, smoke, leaks, dust, etc. scattered on the rising airflow along the furnace body, kiln port, etc.
Since the upper fixed dust collection hood is unlikely to leak out of the system, it contributes to a marked improvement in the dust collection effect. 9) The upper dust collection hood of the kiln is fixed to the upper part of the kiln.
Since the wheel load of the extruder can be reduced, equipment investment can be made cheaper, equipment maintenance can be simplified, and track life can be extended. 10) Since the connection port from the upper dust collecting hood is formed on the side, a stable dust collecting effect can be obtained regardless of the dry main support bracket, the suction main, and the diffusion tower section.

[0031]

Since the present invention is constructed as described above,
For example, it works as follows. The extruder moves and is located at the kiln mouth that is the target of the kiln removal. As a result, the first opening closing connector, the first auxiliary connector, the extruder kiln connector, the second auxiliary connector, the second opening closing connector, the cleaner upper connector, and the leveling connector also need to exhibit their respective functions. The extruder stops moving so as to be located at the target position.

Then, according to each operation procedure required for kiln removal,
Carry out the kiln. At this time, the first opening closing connector and the second opening closing connector of the extrusion side dust collecting equipment according to the present invention are configured such that the opening of the upper dust collecting hood fixed to the upper part of the kiln is closed with the lid. A physical structure that prevents dust, smoke, and other leaks from the machine, and also allows dust to be collected more completely with the first auxiliary connector, the extrusion kiln connector, the second auxiliary connector, and the cleaner upper connector via the first suction conduit. Adjust the conditions and maintain the conditions during dust collection.

That is, dust and smoke from the kiln opening during extrusion,
Dust and others are sucked into the first suction conduit by contacting the extruder kiln connector so as to cover the opening of the upper dust collector hood. The upper dust collecting hood has a U-shaped bent tip at the tip of the piece that protrudes forward, so that dust, smoke, dust, etc. from the kiln can be collected by the U-shaped curved surface. It functions like drifting in the hood.

It is more preferable to provide a space satisfying physical conditions so that dust, smoke, dust, etc. from the kiln port drifting in the upper dust collecting hood drift along the longitudinal direction of the upper dust collecting hood. The function of the upper dust collection hood can be exerted. Securing this physically rational space is an essential condition for the configuration of the upper dust collecting hood of the present invention. Therefore, in order to collect dust, fumes, dust, etc. floating in the upper dust collecting hood, the first auxiliary connector is provided on the first opening closing connector side when the extrusion kiln port connector is viewed from the plane, and the second auxiliary connector is provided. Since a second auxiliary connector and a cleaner upper connector are provided on the opening closing connector side, these connectors are brought into contact with each other so as to cover the opening of the upper dust collecting hood and sucked into the first suction conduit.

The lower dust collecting hood is guided from the first suction conduit to the large diameter conduit via the third suction conduit with the openings facing each other from both sides of the carbonization chamber. Therefore, dust generation near the bottom of the kiln,
Smoke, smoke leaks, dust, etc. are guided to the dust collector as much as possible, which contributes to the improvement of the dust collection effect not seen in the past. When the dust collection is completed, the lower dust collector hoods, which have openings facing each other from the vicinity of both sides of the bottom of the kiln, are retracted by the function of the driving device, so that the next operation process of the coke oven is not hindered. Return to.

The cleaner upper connector for suction is brought into contact with the opening of the upper dust collecting hood near the opening / closing operation of the furnace lid to generate dust, smoke, or leakage of smoke generated at the time of the furnace lid cleaner.
Dust is also sucked into the dust collector and guided.

When the dust collecting function of the upper dust collecting hood is completed, the various connectors in contact with the opening of the upper dust collecting hood are moved backward by the function of the driving device and separated from the opening, and the standby position is reached. Return to and will be positioned until the next opportunity.

The suction leveling connector guides dust, smoke, leaks, dust, etc., generated when leveling the carbonization chamber, to the dust collector, and when dust collection is completed, moves to the standby position together with the above connectors. Go backwards and wait until the next opportunity.

According to the operating process of the coke oven, when one cycle of the dust collection at the kiln on the extrusion side is completed, the extruder moves to the next kiln port to be extruded along the track by the function of the drive device. After stopping, the kiln mouth dust collection function associated with extrusion similar to the above is sequentially exhibited. An example of the operation of the present invention is as described above, but according to one embodiment of the present invention described below, further other functions (operations) are exhibited, but for convenience of explanation,
I will stop at this example.

[0040]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in FIGS. FIG. 1 is an explanatory view of the whole of the present invention seen from a plane, and FIG. 2 is an enlarged perspective view of the upper dust collecting hood and the vicinity of the upper portion of the kiln opening in FIG. The upper dust collecting hood 1 is fixed to the upper portion 4 of the furnace body in the furnace length direction of the coke oven 2 so as to cover the upper portion of the kiln port 3 on the extrusion side. Therefore, it is difficult for dust and the like to flow out (leak) from deceptively fixed locations.

As shown in FIGS. 2, 3, and 4, the upper dust collecting hood 1 has a U-shaped tip at the top of the kiln port 3 on the extrusion side, the side 5 protruding forward, that is, in the width direction of the hood 1. A bent portion 6 that bends in a curved shape is formed, and an opening 7 for suction is provided on the vertical surface of the bent portion 6. The opening 7 is provided in the bent portion 6 in the length direction of the upper dust collector hood 1. One example of the embodiment is provided in the vicinity of the kiln opening 3 on the extrusion side, but it is preferably opposed to the kiln opening 3. If provided, it contributes to the improvement of the suction effect. Further, the folding side 8 forming the bent portion 6 in the shape of a U-shape is such that dust, fumes, smoke, dust, etc. 9 rising together with the bent portion 6 from the kiln port 3 on the extrusion side are collected in the upper portion. It also wraps the dust hood 1 so that it does not come out from the width direction, and also serves to change the flow in the length direction of the hood 1. The dust and the like 9 whose flow is changed in the lengthwise direction of the hood 1 gradually decelerates and drifts in the space inside the upper dust collecting hood 1 and presents a boundary area with the atmosphere near both sides thereof. In some cases, the opening 7 may allow atmospheric air to enter the upper dust collecting hood 1 from the outside according to physical conditions, and contributes to the maintenance of a phenomenon in which dust or the like 9 drifts inside the hood 1. Therefore, in the present invention, in the vicinity of both sides of the floating dust particles 9 and the like, various connectors are brought into contact with the opening portion 7 in the area exhibiting the boundary with the atmosphere as described below to exert the function of suction dust collection. When the upper dust collecting hood 1 is made of a thin plate of SUS, the upper dust collecting hood 1 is unlikely to be affected by components contained in dust, smoke, smoke, dust, etc., and the hood life can be improved.

FIG. 1 shows a state in which the extruder 10 is stopped and various connectors are brought into contact with the opening 7 at the position of the dust collection countermeasure area. In FIG. 1, a first opening closing connector 11, a first suction auxiliary connector 12, a suction extrusion kiln connector 13, a second suction auxiliary connector 14, and a second opening closing connector in this order from the top. 15, which are provided in a first suction conduit 18 provided with a first switching damper 16 and a second switching damper 17 so as to extend and retract so as to extend and retract.

This expandable structure is shown in FIG.
As shown in the enlarged view of the arrow I ′, the pedestal 1 is attached to the extruder (not shown).
9 is mounted and the first suction conduit 18 is arranged thereon. A connector 13 for an extrusion kiln is provided so as to extend and retract so as to extend perpendicularly to a surface of the tube 18 facing the direction of the extrusion kiln.
The drive device 2 that allows the user to move forward and backward to extend and contract.
In No. 1, a hydraulic cylinder is arranged on a pedestal 19 and is attached to a cleaner upper connector 20 to move forward and backward so as to exhibit a flexible function. In FIG. 4, the extrusion kiln port connector 13
The state of the standby position when the extruder that has moved backward is also shown, and the state where the extruder moves forward and contacts the opening 7 of the upper dust collection hood 1. Note that, in the above description, FIG.
In view of an enlarged view of the arrow I ′, the first opening closing connector 11, the first auxiliary connector 12, and the second auxiliary connector 1
4, the cleaner upper connector 20 is omitted, but since the configuration is similar to that of FIG. 2 when the position of the arrow I-I 'is changed, it will be replaced by the above description. However, as shown in FIG. 1, since the first opening-closing connector 11 is provided in the first suction conduit 18 via the first auxiliary connector 12, it functions to extend and retract as the first auxiliary connector 12 moves forward and backward. . Also, the second opening closing connector 15 and the second
Also in the case of the auxiliary connector 14, the second auxiliary connector 14
It can function freely as it moves forward and backward.

The first switching damper 16 and the second switching damper 17 of the first suction conduit 18 shown in FIG. 1 have the function of closing the system and adjusting the suction amount, etc., and can suppress an excessive suction amount. Therefore, it plays a role of contributing to the energy saving effect.

As shown in FIG. 1, one end of the first suction conduit 18 is provided in the large diameter conduit 23, and the tip of the large diameter conduit 23 is
The dust collecting duct 25 is connected to the dust collector 24 in an airtight manner. The structure which is fitted or slidably contacted in the airtight state may be a commercially available structure particularly in the present invention. Therefore, since the configuration is not specified, the description is omitted.

The leveling connector 22 has a retractable device by the same forward / backward movement mechanism as in FIG. 2, but only the leveling connector 22 is independently attached to the second suction conduit 26 connected to the large diameter conduit 23. There is. Because the leveling connector 2
No. 2 has a function of collecting dust in the kiln port 3 on the extrusion side for leveling, so that in the coke oven operation, the kiln port to be extruded and leveled has a time lag and is separated from the carbonization chamber. Therefore, it is because it is necessary to deceptively mount the second suction conduit 26 independently, so that the physical condition is satisfied and the technical problem of the present invention is also satisfied.

FIG. 3 is a view showing the coke oven 2, the extruder 10 and the extrusion kiln port connector 1 as viewed from the direction of arrows II-II 'in FIG.
3, lower dust collecting hood and the like are shown. 2 as well as FIG.
But as you can see, the upper dust collecting hood 1 is the coke oven 2
Is fixed in the lengthwise direction of the upper part of the kiln opening 3 on the extrusion side, and the vicinity of the tip of the hood 1 is formed with a bent portion 6 and a folding side 8 which are bent in a U shape. Dust, smoke, leakage, dust, etc. rising along the line will not leak (flow out) from the fixed portion of the upper dust collecting hood 1. Since the extruder 10 is equipped with various connectors, various conduits, a lower dust collecting hood, and the like, which constitute the extrusion side kiln mouth dust collecting equipment of the coke oven 2 according to the present invention, the operation process of the coke oven 2 (operation) It can be moved sequentially according to the schedule.

FIG. 5 is a view showing a state in which the lower dust collecting device shown in FIG. 3 is viewed toward the extrusion-side kiln port 3. An opening 27 is formed on each side of the carbonization chamber near the lower portion of the kiln opening 3 on the extrusion side.
Lower dust collector hoods 29 and 30 are provided in the third suction conduits 31 and 32 with 28 facing each other. In the case of FIG. 5, the lower dust collecting hood 29 is provided on the third suction conduit 31 so as to be retractable from the vicinity of the lower portion of the kiln port 3. Further, the lower dust collecting hood 30 is provided on the third suction conduit 32 so as to stop near the lower portion of the kiln opening 3. Connect the opposite ends of these third suction conduits 31, 32 to the first
It is provided near the end of the suction conduit 18. Therefore, like the connectors 12, 13, 14, 20 for suction, the dust is collected by suction to the dust collector 24 via the large-diameter conduit 23, the dust collection duct 25, and the like.

The lower dust collecting hood 29 can be retracted from the vicinity of the kiln port 3 in the case of FIG. 5 in which the third suction conduit 31 'has a diameter smaller than that of the third suction conduit 31. Is extended and retracted (slidably) inserted, and the branch pipe 33 is further extended to the third suction conduit 31 ′ to provide the lower dust collecting hood 29. Then, a hydraulic cylinder 34 is provided outside the third suction conduit 31, and its cylinder rod 35 is attached to the branch pipe 33 of the third suction conduit 31 ′. Third suction conduit 31 '
The lower dust collector hood 29 can be expanded and contracted.
Is configured to be retractable from the vicinity of the kiln mouth 3.

Although not shown, the third suction conduit 32 has three
The first suction conduit 18 shown in FIG.
, Or may be independently connected to the first suction conduit. Thus, the third suction conduit 31 is provided with a third switching damper 36 and a fourth switching damper 37, and the third suction conduit 32 is provided with a fifth switching damper 38. These dampers 36, 37, 38 are respectively arranged in the lower dust collecting hood 2.
It exerts the function of selecting and implementing an appropriate suction method of 9, 30 and saving energy. For example, when the fifth switching damper 38 is adjusted, the two lower dust collecting hoods 3 are vertically arranged in the kiln opening 3.
Although 0 is provided, it can be adjusted so that one of them exerts a stronger suction function or does not suck at all in consideration of the wind direction.

When the fourth switching damper 37 is adjusted, two lower dust collecting hoods 29 are provided in the vertical direction of the kiln port 3, but the suction of the two lower dust collecting hoods 29 in the vertical direction is fully opened or fully opened. Adjust within the closed range. When the third switching damper 37 is adjusted, the suction of the lower dust collecting hoods 29 and 30 is adjusted within the range of fully open or fully closed. Furthermore, when combined with the adjusting function of the fourth switching damper 37 and the fifth switching damper 38, the adjusting function is exerted within the range of the combination, and therefore these are selected and adjusted according to the operating condition.

The fourth switching damper 3 shown in FIG.
7, the lower switching hoods 29 and 30, for example, are provided with the fifth switching damper 38.
Since the function is exhibited even if 29 is provided on the side of 30, the deceptive switching dampers 37 and 38 are not limited to the example of FIG.

The equipment of the embodiment according to the present invention, which constitutes a deception, operates as follows. The extruder 10 is a coke oven 2
According to the operation schedule of, the operator operates to stop at the extrusion side kiln opening 3 of the charring chamber to be kilned at the specified position in front,
Coke is extruded under the specified motions. Each connector 11, 12, 13, 1 mounted on the extruder 10
Nos. 4, 15, 20, and 22 are provided in such a size that the extruder 10 can be stopped at a designated position in advance and can perform its respective functions. The forward movement (extension movement) of the cylinder (21) simultaneously advances toward the upper dust collecting hood 1, and the lids at the tips of the first opening closing connector 11 and the second opening closing connector 15 move upward. The opening 7 of the dust collecting hood 1 is closed,
The excessive invasion of the atmosphere into the hood 1 is suppressed. As a result, for example, unnecessary turbulence in the boundary area between the atmosphere and both sides such as dust, smoke, smoke, dust, etc. that are decelerated in the lengthwise direction of the hood 1 is suppressed, and the dust etc. A physical phenomenon that flows out (leaks) from the inside of the hood 1 to the outside of the system is also suppressed.

At the same timing as above, the first auxiliary connector 12 for suction, the connector 12 for extrusion, and the second auxiliary connector 14 also contact (surface contact) in a state of surrounding the opening 7 of the upper dust collecting hood 1. To do. At this time, since the dust collecting duct 25 connected to the dust collector 24 on the ground and the large-diameter conduit 23 are already provided in an airtight state, the suction action of the dust collector 24 is applicable via the first suction conduit 18 and the second suction conduit 26. Maintains each connector and suction system. Therefore, the opening 7
Dust, smoke, leaks, dust, etc. from the
Along with or rising apart to reach the upper dust collection hood 1 and change the flow in the longitudinal direction while suppressing the flow out (leakage) from the hood 1 at the bent portion 6 and / or within the hood 1. At the moment when the temperature reaches, the dust, smoke, smoke, dust, etc. 9 drifts while the speed is decelerated by the space volume in the length direction inside the hood 1, and the air is released on both sides of the length space inside the hood 1 Presents a border area with.

Under the behavior of deceptive dust generation, smoke generation, leakage of smoke, dust, etc. 9, the dust is sucked by each suction connector and is sucked from the inside of the upper dust collecting hood 1 to the dust collector 24 via the above-mentioned various constituent elements. Suction to collect dust. That is, in this embodiment, since the opening 7 of the upper dust collecting hood 1 is provided so as to face the extrusion-side kiln opening 3, dust, smoke, leakage, dust, etc. from the kiln opening 3 during extrusion 9
Most of them are sucked by the extruding connector 14 for suction through the opening 7. Other dust, fumes, smoke leaks, dust, etc. 9 remaining in the upper dust collecting hood 1 are generated by the first auxiliary connector 1
The first and second auxiliary connectors 14 interact with each other to suck, and finally the upper dust collecting hood 1 does not remain.

The first auxiliary connector 11 and the second auxiliary connector 14 share the suction amount, the suction range, and / or the suction function with the extrusion suction connector 13 from the longitudinal direction in the upper dust collecting hood 1. And so on. Therefore, for example, in the length direction of the upper dust collecting hood 1, by selecting the abutting opening 7, dust that drifts in the upper dust collecting hood 1,
Since it is possible to select and implement a suction mode that matches physical phenomena such as smoke generation, smoke leakage, and dust, it is possible to contribute to the improvement of the dust collection effect and dust collection efficiency.

On the other hand, near the lower part of the kiln port 3 during extrusion, lower dust collecting hoods 29 and 30 shown in FIGS. 3 and 5 are used. This suction is selected depending on the operating conditions of the coke oven, whether the suction is performed together with the suction from the upper dust-collecting hood 1, the suction start time is shifted or the suction is started separately.

Here, a case where the dust collection is performed together with the dust collection from the upper dust collection hood 1 will be described. When the extruder 10 stops at the designated position of the kiln opening 3 as described above, the lower dust collecting hood 30 is located near one side of the kiln opening 3 according to the design specifications. By the operation, the lower dust collecting hood 29 operates the hydraulic cylinder 34 to extend the cylinder rod 35, pull out the third suction conduit 31 ′ from 31 and position it near the kiln port 3. The lower dust collecting hoods 29 and 30 are opposed to the suction openings 27 and 28. In particular, in the case of FIG. 5, two openings 27 and 28 face each other in the height direction of the kiln opening 3 to share the suction range. Therefore, in the case of FIG. 5, two types of suction are performed in the lower height direction of the kiln opening 3, that is, the lower openings of the openings 27 and 28 are near the lower part of the kiln opening 3, and the upper openings are the kiln openings. The lower part of the mouth 3 and the slightly upper part can be sucked. In addition, the suction function of these openings can exhibit a combined suction function other than that by selecting the fourth switching damper 37 and the fifth switching damper 38. By deceptively combining the upper dust collecting hood 1 and the lower dust collecting hoods 29 and 30, and by selecting and / or combining the functions of these components, dust, smoke, leaks, dust from the kiln mouth 3 Since the suction adapted to the physical phenomenon such as 9 can be performed, the diffusion due to the wind can be prevented, and there is also an effect that a fine dust collecting mode that cannot be found in the past can be implemented.

The furnace lid removed from the coke oven is cleaned by a furnace lid cleaner before and after extrusion, and dust, smoke, and dust generated at this time are also collected by suction.

Further, dust, fumes, leaks, dust, etc. 9 in the carbonization chamber for leveling are sucked by the leveling connector 22. That is, the carbonizing chamber for leveling is separated from the kiln opening 3 during the kiln discharge, and there is a time difference in suction dust collection. Therefore, in the present invention, for example, as shown in FIG.
The second suction conduit 26 is provided separately from the upper dust collecting method, and the conduit 26 is connected to the large diameter conduit 23. Thus, the device for expanding and contracting the forward / backward movement of the leveling connector 22 is the same as that shown in FIG. Therefore, since the position where the extruder 10 is stopped is designed to be a position where the function of the leveling connector 22 should be exhibited, the leveling connector 22 is extended and extended by an operation to open the upper dust collecting hood 1. The portion 7 is contacted (surface contact) so as to cover the portion 7 and suction dust is collected.
At this time, by closing and / or adjusting the third suction conduit 31 by operating the first switching damper 39, the optimum suction function of the leveling connector 22 can be exhibited, so that energy saving, dust collection effect, dust collection efficiency, etc. can be achieved. It has a remarkable effect.

In a deceptive manner, the dust collection at the kiln port 3 on the extrusion side is completed. Each of the above-mentioned suction connectors 12, 13, 14, 2
0 and 22 are expanded and contracted in the backward direction by the action of the drive device 21 shown in FIG. 2 and returned to the standby position. Since the first opening closing connector 11 is provided as a mounting element on the first auxiliary connector 12 and the second opening closing connector 15 is provided as a mounting element on the second auxiliary connector 14, these It returns to the standby position with the return operation. When all the equipment components are returned to the standby position, the positions are as shown by the solid line positions of the lower dust collecting hoods 29 and 30 in FIGS. 1, 3 and 5 and are in a state independent of the coke oven 2. The machine 10 is moved to the next kiln opening that requires dust collection on the extrusion side. Less than,
By repeating this, dust is collected from the kiln on the extruder side of the coke oven.

[0062]

The present invention, which is constructed and operates as described above, has the following remarkable effects. 1) Dust, smoke, leaks, etc. that come out of the kiln on the extrusion side and other things that may interfere with the work environment can be guided to the dust collector as much as possible than before, and the dust collection effect and dust collection efficiency Etc. can be improved. 2) The various devices that make up the dust collection facility do not hinder the various operations of the kiln on the extrusion side of the coke oven, other coke oven operations, and productivity. 3) It is possible to save energy for dust collection. 4) Capital investment is low. 5) Easy equipment maintenance. 6) Even if there are differences in the coke oven design conditions, the present invention can be adopted without changing the basic equipment configuration requirements.

[Brief description of drawings]

 The drawings show an embodiment according to the present invention.

FIG. 1 is a plan view showing a dust collecting facility at an extrusion side kiln mouth of a coke oven according to the present invention.

2 is a perspective explanatory view showing an enlarged main part of the upper dust collecting hood of FIG. 1. FIG.

FIG. 3 is a view taken along the line I-I ′ of FIG.

4 is a view taken along the line II-II ′ of FIG.

FIG. 5 is an explanatory view of the main part of the lower dust collecting hood of FIG. 3 as viewed in the direction of the kiln.

[Explanation of symbols]

 1 Upper dust collector hood 2 Coke oven 3 Extrusion-side kiln port 4 Upper part of furnace body 5 Side protruding 6 Bent part 7 Opening part 8 Folding side 9 Dust, smoke, smoke, dust, etc. 10 Extruder 11 First opening closed Connector 12 First auxiliary connector 13 Extrusion connector 14 Second auxiliary connector 15 Second opening closing connector 16 First switching damper 17 Second switching damper 18 First suction conduit 19 Frame 20 Cleaner upper connector 21 Drive device 22 Average Connector 23 Large diameter conduit 24 Dust collector 25 Dust collecting duct 26 Second suction conduit 27 Opening 28 Opening 29 Lower dust collecting hood 30 Lower dust collecting hood 31 (31 ') Third suction conduit 32 Third suction conduit 33 Branch pipe 34 Hydraulic pressure Cylinder 35 Cylinder rod 36 3rd switching damper 37 4th switching damper 3 8 5th switching damper

Claims (8)

[Claims] 1. An end portion of a large-diameter conduit that is movable is provided slidably or slidably in an airtight state at a suction port of a duct that communicates with a dust collector, and is collected near the other end of the large-diameter conduit. When a dust hood is installed to collect dust on the extrusion side kiln of the coke oven, dust, fumes, smoke leaks, dust, etc. from the extrusion side kiln of the coke oven are collected at the top of the oven side of the coke oven. Direction of the upper dust collecting hood provided in the lengthwise direction, the speed is reduced and drifted, and among the openings provided in the lengthwise direction of the upper dust collecting hood, in the opening near the kiln mouth during extrusion. Is in contact with the extrusion kiln port connector for suction, and the first and second auxiliary connectors for suction are respectively in contact with the openings on both sides of the extrusion kiln port connector. Near the boundary with the atmosphere on both sides in the length direction where there are dust, smoke, leaks, dust, etc. floating inside Each of the openings has a first and a second opening-closing connector to closeably close the lid to suppress excessive suction of the atmosphere, and the opening near the top of the cleaner has a suction opening. The extruder side kiln opening is characterized by abutting the cleaner upper connector and guiding dust to the dust collector through various conduits while sucking dust, smoke, smoke and dust with each suction connector. Dust collection method. 2. A plurality of lower dust-collecting hoods having openings facing each other are provided in a third suction conduit on both sides of the lower part of the extrusion side kiln opening of the carbonization chamber so as to be retractable from the vicinity of the kiln opening, and these third suction conduits are provided. One end is provided in the vicinity of the closed end of the first suction conduit, and dust, smoke, leaks, dust, etc. are sucked from the opening and guided to the dust collector through each conduit. A method for collecting dust from the kiln on the extrusion side of a coke oven. 3. The method of claim 1, wherein the upper dust collector hood and the lower dust collector hood collect dust on the extrusion side kiln. 4. A leveling connector for suction is brought into contact with the opening in the vicinity of the kiln opening during leveling, and dust, smoke, leaks, dust, etc. are sucked and guided to a dust collector through various conduits. Characteristic,
The extrusion-side kiln mouth dust collection method of the coke oven according to claim 1, claim 2, or claim 3. 5. A suction port of a duct connected to the dust collector is provided with one end of a large-diameter conduit mounted in the extruder in an airtight manner so as to be fittable or slidable, and a dust collecting hood near the other end. A facility for collecting dust at the extrusion side kiln mouth of a coke oven, characterized by being configured by combining the following essential structural requirements 1) A to 2) L. Equipment for implementing the dust method 1) Structure of the dust collecting hood above the extrusion kiln in the carbonization chamber A. The upper part of the extruder-side kiln mouth, which has a U-shaped tip protruding toward the front at the extrusion-side kiln mouth of the carbonization chamber, and has an opening for suction in the vertical plane of the bent part Provide a hood. 2) Configuration of dust collecting equipment mounted on the extruder B. A first opening closing connector, which can be moved forward and closed, is provided in the first suction conduit in a retractable manner at the opening of the upper dust collecting hood of the kiln mouth. C. A first auxiliary connector, which can be moved forward and freely contactable with the opening of the upper dust collection hood of the kiln, is provided in the first suction conduit in a stretchable manner. D. An extrusion kiln cotter, which is moved forward and is freely contactable with the opening, of the upper dust collection hood of the kiln mouth is provided in the first suction conduit in a stretchable manner. E. A second auxiliary connector, which can be moved forward and freely contactable with the opening of the upper dust collection hood of the kiln, is provided in the first suction conduit in a stretchable manner. F. A second opening closing cotter that can be moved forward and closed to the opening of the upper dust collection hood of the kiln is
Provide in the suction conduit. G. A cleaner upper connector that can move forward and contact with the opening of the upper dust collection hood of the kiln
Provide in the suction conduit. H. The first suction conduit is provided in the large diameter conduit. I. A leveling connector that advances forward and is freely contactable with the second suction conduit is provided in the second suction conduit in the opening of the upper dust collection hood of the kiln, and the second suction conduit is provided in the large diameter conduit. 6. The extrusion side kiln mouth dust collecting equipment of a coke oven according to claim 5, characterized in that the following essential structural requirements G are provided. J. The first suction conduit is provided with a first switching damper that can be opened and closed, and a second switching damper between the first suction conduit and the cleaner upper connector. 7. The extrusion side kiln mouth dust collecting equipment of a coke oven according to claim 5 or 6, characterized in that the following essential structural requirements H are provided. K. A plurality of lower dust collecting hoods having openings facing each other are provided on the third suction conduit so as to be retractable from the vicinity of the kiln opening at both sides of the lower part of the extrusion side kiln opening of the carbonization chamber, and one end of these third suction conduits is provided. Connected to the first suction conduit, these lower dust collecting hoods are movably provided together with the extruder. 8. The extrusion side kiln mouth dust collector of a coke oven according to claim 5, claim 6 or claim 7, characterized in that the following essential constituent requirements I are provided. L. The third suction conduit is provided with a third switching damper, a fourth switching damper, and a fifth switching damper that can be opened and closed.