KR20050123339A - Dust collecting apparatus at kiln entrance of coke oven - Google Patents

Abstract

It is an object of the present invention to provide a coke oven dust inlet dust collecting apparatus which can more reliably catch dust emitted from the coke oven kiln inlet in the coal distillation process. In particular, the timing at which a large amount of dust is discharged from the kiln inlet. Let it be a subject to be able to respond reliably.

A kiln inlet dust collector for trapping and aspirating dust collected from the kiln inlet C2 of each carbonization chamber C1 of the coke furnace in which a plurality of carbonization chambers C1 are installed, and aspirated by dust collection. As (10), the dust collecting hood 20 is provided at a portion facing the kiln inlet C2 of the extruder 90 used when discharging the coke from each carbonization chamber C1. The dust collection hood 20 is shaped so that it can cover the upper part and both side parts of the working area Z1 in the kiln inlet C2.

Description

Kiln entrance dust collector of coke furnace {DUST COLLECTING APPARATUS AT KILN ENTRANCE OF COKE OVEN}

The present invention relates to an improvement of a kiln inlet dust collecting apparatus used for collecting dust emitted from a kiln inlet of each carbonization chamber of a coke furnace in which coal is carbonized to produce coke.

Conventionally, the kiln inlet dust collecting apparatus 100 as shown in FIG. 8 of Unexamined-Japanese-Patent No. 56-28287 is known. The kiln inlet dust collector 100 is for collecting dust emitted from the kiln inlet C2 of the coke oven C, in which a large number of carbonization chambers C1 are installed, and a buck stay on the top of the furnace lid 102. A kiln inlet hood (furnace hood) 103 disposed between the 101, a connecting duct 104 whose proximal end is connected to each kiln inlet hood 103, and a tip side of each connecting duct 104, respectively. The collective duct 105 to be connected is provided.

The dust discharged from the kiln inlet C2 during the operation of the coke oven C is captured by the kiln inlet hood 103, and is then accompanied by suction air to connect the respective connecting ducts 104 and the aggregates. It is introduced into the predetermined dust collector of the ground installation via the duct 105, and a dust collection process is performed by this dust collector.

The kiln inlet dust collector 100 is an achievement for effectively trapping dust emitted from the coke oven C2 to the atmosphere by the kiln inlet dust collector 100 for a long time after being employed, and achieving an air pollution prevention effect. This is big.

Patent Document 1) Japanese Patent Application Laid-Open No. 56-28287

Patent Document 2) Japanese Patent Application Laid-Open No. 56-5888

Patent Document 3) Japanese Patent Application Laid-Open No. 58-152089

Patent Document 4) Publication No. 62-21051

By the way, the amount of dust discharged from the kiln inlet of the coke oven (C) is large when the coal is put into the carbonization chamber (C1) of the coke oven (C), and when the coke is discharged from the carbonization chamber (C1) after drying is completed. Occurs.

That is, when the coal is put, the extruder is in the process of performing a so-called leveling operation in which the level of coal in the carbonization chamber C1 is uniformly set by the extruder leveler while the small lid on the top of the furnace lid 102 is opened. Dust release from the so-called inlet C2 on the side of the machine, which is arranged, increases.

On the other hand, when the coke is discharged, the furnace lid 102 is peeled off from the carbonization chamber C1 in both the machine side and the so-called coke side from which the guide car is discharged, whereby the red coke in the carbonization chamber C1 enters the kiln entrance ( C2) reaches the entire length in the vertical direction of the carbonization chamber C1 and is exposed to the outside, whereby a large amount of dust is generated in the red coke. Furthermore, when coke is extruded from the carbonization chamber C1 by the drive of the ram of the extruder, the red coke is discharged toward the fire extinguisher through the guide car at the kiln inlet of the coke side, and thus the kiln inlet C2 of the coke side. Dust emissions from are very high.

In order to effectively capture dust with the kiln inlet hood 103 corresponding to the carbonization chamber C1 which is an object in the case of such dust bundle, the opening / closing damper 104a which is normally closed in each connection duct 104 is carried out. Is captured by the kiln inlet hood 103 in the open state, and is introduced into the dust collecting process of the ground installation via the collecting duct 105, and is left to the dust collecting process.

However, in the conventional kiln inlet dust collector 100 as described above, since each kiln inlet hood 103 is provided above the kiln inlet C2 of each carbonization chamber C1, the furnace lid 102 is used. In this peeled state, the distance from the longitudinally exposed red coke to the kiln inlet hood 103 is considerably long, and thus, for example, until the hot air including the dust generated in the red coke reaches the kiln inlet hood 103, For example, when disturbance such as a transverse wind acts, dust spreads in the outside air until reaching the kiln entrance hood 103, and cannot be reliably captured. Therefore, in the conventional kiln inlet dust collecting apparatus 100, it was the situation that the effect which prevents environmental pollution was not made preferable.

Therefore, it is conceivable to enlarge the kiln inlet hood 103 by the conventional kiln inlet dust collecting method as described above to widen the dust capturing range. However, in this way, the kiln inlet hood interferes with an extruder or a guide car which is a moving machine. Therefore, there is a problem that it is impossible to realize in practice.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a coke oven dust inlet apparatus that can more reliably capture dust emitted from the coke oven inlet during the coal drying process. In particular, it is an object of the present invention to provide a kiln inlet dust collector for coke oven which can reliably cope with the timing at which large amounts of dust are discharged from the kiln inlet.

Means for solving the above problems are as follows.

The invention of claim 1 is a kiln inlet dust collecting apparatus for collecting and sucking dust collected at a kiln inlet of each carbonization chamber of a coke oven in which a plurality of carbonization chambers are installed, and collecting dust. And an opposite portion of the kiln inlet of the working machine used to discharge the coke from each carbonization chamber.

In the coke oven, in the work area set in front of the furnace corresponding to the plural rooms of the carbonization chamber so as to include the kiln entrance during the coke discharge operation in the carbonization chamber, an operator or various equipments are used for the coke discharge or the cleaning of the furnace lid. A predetermined series of operations are performed.

Specifically, as the series of operations, the furnace lid picking operation for removing the furnace lid mounted on the carbonization target carbonization chamber, and the coke side from the machine side by driving the extruder ram in the carbonization chamber where the furnace lid is removed The door (furnace lid) cleaning operation to remove and clean the coal tar attached to the detached furnace lid, and the coal tar attached to the frame of the carbonization kiln entrance with the furnace lid removed. The extruder and the guide car are common to a sheet (frame) cleaning operation for removing and purifying, and a furnace lid mounting operation for attaching a furnace lid, once removed, to a carbonization chamber.

In addition, as an operation unique to the extruder, when the raw coal is placed in the carbonization chamber with a charging vehicle at the top of the furnace with the furnace lid attached to the carbonization chamber after the coke is discharged, Leveling work which makes the height level of coal uniform is mentioned. While such a series of work is being carried out, a large amount of dust is emitted to the outside from the kiln inlet to the coke oven, but the kiln inlet dust collector of the present invention is for effectively capturing and collecting such dust.

According to the invention of claim 1, the dust collecting hood for the kiln inlet is installed on one or both of the extruder and the guide car (hereinafter, collectively referred to as work machine), so that the work machine is a furnace lid. Since the dust hood is in a state facing the inlet of the carbonization chamber while moving to the carbonization chamber of the work object which emits a large amount of dust by opening, the large amount of dust emitted from the glowing coke in the carbonization chamber It is certainly captured by the dust collection hood.

In addition, especially on the side where the extruder is installed (machine side), when the coal is put into the carbonization chamber, the leveling operation is performed to uniformize the coal level in the carbonization chamber. Although discharged to the outside, by installing the dust collecting hood in the extruder, the discharge dust at the inlet of this small lid can also be effectively captured.

As described above, according to the invention of claim 1, the conventional fixed furnace hood was not able to reliably pick up dust emitted from the small lid inlet in the state in which the open lid of the furnace lid or the furnace lid was attached. Incompatibility is eliminated, and it becomes possible to reliably prevent scattering of dust from a coke oven, and the contribution which contributes to air pollution prevention is large.

The invention of claim 2 is characterized in that, in the invention of claim 1, the dust collecting hood is configured to cover the upper and both side portions of the work area at the kiln inlet.

In the present invention, the work area at the kiln inlet is a work area set in front of the furnace corresponding to the plurality of rooms of the carbonization chamber to include the kiln inlet which is the work target of the coke discharge work in the carbonization chamber. The operator will perform the series of operations in accordance with the coke discharge.

In the invention according to claim 2, since the dust collecting hood can cover the upper portion and both shaft portions of the work area at the kiln entrance, the carbonization chamber is included while the work machine is moved to the carbonization chamber of the work object. In the work area in front of the furnace, not only dust emitted from the kiln inlet, but also dust generated during the series of work in the work area can be captured by the dust hood covering the upper and both sides of the work area. Most dust generated in the working area is collected more reliably.

Therefore, in the case where the hood is provided only on the upper part of the conventional inlet mouth, incompatibility occurs that dust is discharged to the outside from the side of the inlet mouth which is not covered at all, but in the second aspect of the invention, such incompatibility does not occur, and dust capture efficiency This greatly improves.

According to a third aspect of the invention, in the invention of the second aspect, the dust collecting hood further includes a lower cover plate that can cover the lower part of the dust emission region at the kiln inlet.

In the present invention, the dust emission region is a region where particularly a large amount of dust is emitted from the kiln inlet in the working region, and specifically, with reference to the kiln inlet on the basis of the kiln inlet of the carbonization chamber to be discharged from the coke. At least the same width, the area above the predetermined height position.

According to the invention of claim 3, since the dust collecting hood is provided with a lower cover plate that can cover the lower part of the dust-releasing area as described above, most of the dust discharged from the kiln inlet is provided on the lower cover plate. Induced, it is also clearly captured by the dust collection hood without being affected by disturbance factors.

Therefore, in the fixed dust collecting hood in the coke oven where the lower cover plate is not provided in the conventional dust multi-discharge region, since the dust discharged from the kiln entrance into the dust multi-discharge region once does not induce the dust. Inadequate airflow from the lower side enters the dust collection hood, whereby dust cannot be effectively captured by the hood. However, in the invention of claim 3, such incompatibility is eliminated.

The invention of claim 4 is, in the invention of any one of claims 1 to 3, in the upper position of the kiln inlet, the dust is prevented from being scattered to the coke oven and preventing the dust emitted from the kiln inlet to the outside. It is characterized in that the means are installed.

According to the present invention, the gas containing the dust emitted from the open kiln inlet is reduced in specific gravity due to the high temperature and is lighter than the outside air, thereby rising along the surface of the coke furnace at the kiln inlet, but containing the elevated dust Since the gas is captured by the dust scattering prevention means fixed to the coke oven and guided to the dust collecting hood on the working machine side, the gas from the kiln inlet can be more effectively captured.

When dust scattering prevention means is not provided on the side of the coke oven, the part covering the upper part of the work area in the dust collection hood on the work machine side needs to be in contact with the surface of the coke oven. A member (specifically a buck stay) for supporting the furnace body is provided via a kiln inlet, and means for providing a means for replacing the dust scattering prevention means in a working machine which is a mobile machine while avoiding interference of such a member. Not only is this difficult, but even if it can be installed, a lot of equipment cost becomes high. It is also useful to provide dust scattering prevention means on the coke oven side to suppress the increase in equipment cost.

In the invention of claim 4, in the invention of claim 4, the dust collecting hood has an upper flap facing the dust scattering prevention means, and the upper flap includes a contact posture at which the tip contacts the dust scattering prevention means, and It is characterized in that the contact is configured to be changeable in posture between the released contact postures.

According to the present invention, the tip of the upper flap is in contact with the dust scattering prevention means on the furnace side by setting the posture in a posture of contacting the upper flap with the working machine facing the kiln inlet of the carbonization chamber to be worked. As a result, the dust collecting hood is in a state of completely covering the dust discharge area of the kiln inlet from the top by inserting the dust scattering prevention means, so that the dust discharged from the kiln inlet can be reliably captured by the dust collecting hood.

Then, when the work machine moves, the upper flap is prevented from dust scattering because the upper flap is prevented from contacting the dust flap preventing means of the upper flap by changing the posture from the contact posture to the contact release posture. It can move smoothly without interfering with the means.

A sixth aspect of the present invention is a kiln inlet dust collecting apparatus for capturing, sucking and collecting dust emitted from a kiln inlet of each carbonization chamber in which a plurality of carbonization chambers are installed, and discharging coke from each carbonization chamber. Gas phase ducts, which are disposed in working machines such as extruders and guide cars used for the purpose of suctioning the dust together with the air flow, connection ducts to which the gaseous ducts are connected, and stationary connections to the connection ducts. The dust collector main body is characterized in that it is configured.

According to the present invention, the dust generated at the kiln inlet to the coke oven is captured and drawn by the gaseous duct together with the air flow, introduced into the dust collector main body with the connection duct inserted, and collected by the dust collector main body. And since the dust collector main body is stationary, it is possible to employ a large one having excellent dust collection capacity without being influenced by the weather conditions, compared to the case where the dust collector is installed in the gas phase of the working machine. Dust generated at the kiln entrance to the furnace can be more accurately captured and collected.

According to a sixth aspect of the present invention, in the sixth aspect of the present invention, the connecting duct is configured such that the connection state with the gas phase duct is continuously maintained in the outside air and in a sealed state even when the working machine moves.

 According to the present invention, even when the working machine is moved, the connection state between the gaseous duct and the connecting duct is maintained, so that the inadequate that the captured dust cannot be sent to the dust collector main body during the movement of the working machine is eliminated. Overall dust collection efficiency from a viewpoint improves.

Moreover, when connecting a gaseous-phase duct and a connection duct by a conventional mechanical structure, while providing the connection structure of the number corresponding to the number of carbonization chambers in a connection duct, opening and closing dampers are provided for each connection structure, The connection operation mechanism and the opening and closing operation mechanism of the opening / closing damper must be installed on the duct side, and the equipment cost is not only high, but it is difficult to completely seal the connection part only by the mechanical structure, so that Although the suction of the dust collector main body increases due to the increase in the amount of air flow, and this leads to the incompatibility of increasing the operating cost of the dust collector main body, in the invention of claim 7, the gas phase duct and the connection duct are carried out even when the working machine is in motion. Since the state of connection with the air is maintained continuously in the air and sealed state, it is necessary to install many opening / closing dampers and the like. And correspondingly, as can contribute to the reduction of a facility cost it can be avoided inadequacies of the operation costs of the dust collector body increases with the increase in air volume due to a break in from the outside air intrusion.

Furthermore, according to the invention of claim 7, the operation of the dust collector main body is interrupted even during the movement of the work machine which does not perform the kiln inlet dust, thereby sucking the air in the kiln inlet working area and always providing new air. Since it becomes possible to send to the air, it becomes possible to suppress the temperature of the apparatus of the opposing part of the working machine which faces the coke oven by the forced replacement of the said air, and to suppress the deterioration and damage of the apparatus by high temperature effectively. It can prevent.

Embodiment of the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring drawings.

First, before describing the kiln entrance dust collector according to the present invention, the cost path to which the kiln entrance dust collector is applied will be described. Fig. 1 is a front view of the coke oven as seen from the machine side (the side on which the extruder is arranged). 1, illustration of the riser and the collecting main is omitted. As shown in Fig. 1, the coke oven C is a structure formed by stacking bricks in a stationary manner, and a plurality of carbonization chambers C1 (usually 50 to 100 rooms per one-end stage) It is added. Such a coke oven C is a cross support rod which is not covered by hardware, such as the buck stay 101 opened between the carbonization chambers C1, for example in the state which bricks were piled up. The structural strength is secured by being fastened with a long support rod.

The carbonization chamber C1 is normally formed in the elongate rectangular parallelepiped shape whose furnace width size is set to 400 mm-450 mm, the furnace height site is 4.0 m-6.5 m, and furnace length size is 15.0 m-20.0 m. The openings formed in the front and rear surfaces of the carbonization chamber C1 can be closed by the furnace lid 102 which is freely removable. In particular, in the furnace lid 102 on the machine side (the side where the extruder is arranged), a small lid 106 freely open and closed is provided at the upper portion thereof.

Then, in the state where the furnace lid 102 is attached to the carbonization chamber C1, raw coal is inserted into the carbonization chamber C1 by inserting a charging port provided at the top of the furnace, and the carbonization treatment is performed on the raw coal. A combustion chamber is provided between the carbonized chambers C1, which are installed, and the combustion gas is intermittently supplied to the combustion chambers, so that the fuel coal is started in the carbonization chamber C1 immediately after being put into the carbonization chamber C1. do. The coke oven gas generated as a result of the dry distillation is sent to the subsequent gas treatment facility via the rising pipe 109 and the collecting main 110 (FIG. 2), and after the predetermined cleaning process is performed at the gas treatment facility, It is used as an energy source in the process.

On the other hand, the coke finally produced by the dry distillation of the raw material coal is extruded from the machine side toward the coke side (the opposite side of the machine side) by the extruder after the furnace lid 102 is removed, and is extinguished through the coke guide car. It is received by a car, and it is shipped as a product coke by the subsequent extinguishing process.

In such coke oven C, the kiln inlet hood (furnace hood) 103 is provided in the upper part of the coke oven C for the carbonization chamber C1, and each kiln inlet hood 103 is provided. It is connected with the assembly duct 105 arrange | positioned at the top position of the coke oven C via the connection duct 104. As shown in FIG. Each of the connecting ducts 104 is provided with an opening and closing damper 104a, and only the opening and closing damper 104a of the kiln inlet hood 103 corresponding to the kiln opening, which is a dust collecting target, is opened, while the other opening and closing dampers 104a are closed. The state is maintained. Since the airflow containing dust generated at the kiln inlet is high temperature, the specific gravity is smaller than the outside air, thereby raising the outside air. And this rising airflow is captured by the kiln inlet hood 103, is gathered in the assembly duct 105 via the connection duct 104, and is dust-collected by the dust collector X for the road hood installed in the outside of the system. It is supposed to be processed.

By the way, when the coke K is discharged from the carbonization chamber C1 in which dry distillation of the raw material coal is completed, the furnace lids 102 on both sides, as shown by the third carbonization chamber C1 from the right side of FIG. The coke K is extruded from the machine side toward the coke side by the extrusion operation driven by the ram (extrusion rod) of the extruder in this state, but at this time, the furnace lid 102 is carbonized. A large amount of dust mainly composed of fine particles of coke K is generated from the kiln inlet of the chamber C1 and rises in the atmosphere accompanied by hot air flow. However, such a large amount of dust enters the kiln inlet hood 1030 at the location of generation. Since it often spreads in the atmosphere under the influence of a cross wind and the like until it reaches, it cannot be captured efficiently.

Moreover, when coal is put into the carbonization chamber C1, as shown to the 2nd furnace lid 102 to the left in FIG. 1, the small lid 106 provided in the upper part of the furnace lid 102 is opened, Through the opening of the small lid 106 a leveler 93 (FIG. 2), which is a uniform rod of the extruder, is inserted. And so-called leveling process which makes the height level of raw material coal uniform is performed by making this leveler 93 reciprocate in carbonization chamber C1.

At this leveling process, high pressure water (ammonia water set at a predetermined high pressure) is injected from the riser 109 (FIG. 2) toward the collecting main 110. Most of the large amount of live gas generated in the carbonization chamber C1 due to the ejector effect is introduced into the collecting main 110.

However, at the time of this leveling process, powdered raw coal (powdered coal) comes out from the opening of the small lid 106 with the leveler 93 returned in the carbonization chamber C1, and scattering of the powdered coal is carried out. Although dust is generated, such dust cannot be captured reliably only by the kiln inlet 103.

Therefore, in the present invention, the extruder is equipped with a hood portion in the kiln inlet dust collector, and the extruded gaseous phase dust collecting hood is provided with the raw gas (some dust is contained in the raw gas) and a large amount of coke fine powder. While capturing the airflow including dust, the captured airflow is introduced into the ground-mounted dust collector main body via a joint duct, and the dust collector main body is subjected to a reliable dust collection process. Doing.

In addition, in this embodiment, the said kiln inlet hood 103 is used as dust scattering prevention means concerning this invention which guides the dust discharged from the kiln inlet to the said dust collection hood, except the case where a need arises especially. , Dust collection by the dust apparatus X using the kiln entrance hood 103 is prevented from being performed. Therefore, the opening / closing dampers 104a of all the connection ducts 104 are closed.

In the present embodiment, the kiln inlet hood 103 is not used for dust capture by kiln inlet dust collection but is used as dust scattering prevention means for the following reasons. That is, the kiln inlet hood 103 has already been established before adopting the kiln inlet dust collector 10 of the present invention, particularly the kiln inlet hood 103 to capture dust and collect the dust collector ( The dust collecting hood 20 of the present invention mounted on the extruder 90 can be reliably picked up and dust can be reliably collected by the dust collector main body 50 without performing the dust collecting treatment by X). In particular, the kiln inlet hood 103 can be used as a dust scattering prevention means even when the existing kiln inlet hood 103 is not removed, and when a lot of dust is generated from the kiln inlet which the extruder 90 does not face. For example, the dust can be captured by the kiln inlet hood 103, and the dust collecting apparatus X can be subjected to the dust collecting process.

Fig. 2 is a schematic side view of an extruder for explaining one embodiment of a kiln inlet dust collector according to the present invention, and Fig. 3 is a schematic plan view thereof. As shown in these drawings, the extruder 90 has a pair of tracks provided in parallel with the road end direction (direction perpendicular to the surface of Fig. 2) of the coke oven C in which the plurality of carbonization chambers C1 are arranged. C3) is configured to be runable and moves to the completed carbonization chamber C1 every time the dry distillation is completed, extrudes the coke K in the carbonization chamber C1, and becomes an empty space after extrusion. When raw material coal is inserted into the top of a furnace in (C1), what is called a leveling process which makes the height level of the raw material coal in the carbonization chamber C1 uniform.

The extruder 90 has a long rectangular shape in a direction orthogonal to the running direction (direction orthogonal to the surface of Fig. 2) in plan view (Fig. 3), and the bottom of the structure formed by combining various steel materials. The extruder main body 91 which has a wheel in the inside, the extrusion ram 92 equipped with this extruder main body 91, the copper leveler 93, the copper furnace lid detacher 94, and the copper dust collection hood 20 Has a basic configuration with In addition, in addition to these, the furnace lid cleaning machine which lays down the demineralization which adhered and deposited on the inner surface side of the furnace lid 102 may be provided.

The extrusion ram 92 has a ram main body 92a set to a length longer than the total length of the carbonization chamber C1, and the coke K in the carbonization chamber C1 fixed to the distal end of the ram main body 92a. Is made of a ram head 92b facing each other. A rack is formed in the bottom face of the ram main body 92a, and it advances and retreats with respect to the coke K in the carbonization chamber C1 by the forward and reverse drive of the pinion 92c which engages this rack, and the furnace lid 102 is carried out. The coke K is extruded in the carbonization chamber C1 at the time of advancing in the state in which it is removed from the coke oven C.

The leveler 93 is for making the height level of the raw material coal in the carbonization chamber C1 uniform during the operation of inserting the raw material coal into the carbonization chamber C1, and the furnace lid 102 is the coke oven (C). Raw material inserted into the carbonization chamber C1 by infiltrating into the carbonization chamber C1 from the small lid opened by opening the small lid 106 in a state where it is attached to the cavity) and advancing into the carbonization chamber C1. The leveling process for coal is performed.

The kiln inlet dust collector 10 transports dust collecting hood 20 covering the work area Z1 in the kiln inlet C2 of the coke oven C, and dust captured by the dust collecting hood 20. The gas phase duct 30 is provided and is comprised. As shown by the dotted lines in FIG. 2 and FIG. 3, the working area Z1 is a front lid of the extruder 90 (the side facing the coke oven C) and a furnace lid mounted to the carbonization chamber C1. (It is a space surrounded by the surface side of 1020, the bottom surface side of the kiln entrance hood 103, and the upper surface side of the service groove 107, and the operator of the coke C side at the time of extruding the coke K, The lid detacher 94 and the like work in this work area Z1.

The downstream end of the gas phase duct 30 is connected to a male rod type joint duct 40, and the joint duct 40 is connected to a subsequent large dust collector main body 50. By adopting the water-sealed joint duct 40, the connection state of the gas phase duct 30 to the joint duct 40 can be secured continuously and easily regardless of the movement of the extruder 90.

4 is a perspective view showing one embodiment of the joint duct 40. As shown in FIG. 4, the joint duct 40 is equipped with the processing equipment of the said impregnated gas G installed in the ground for the impregnated gas G derived from the extruder 90 which moves forward and backward while being guided to the track C3. Since it is sent to the phosphorus dust collector main body 50, it is opened between the extruder 90 and the dust collector main body 50, and even if the extruder 90 is moving, the impregnated gas G is continuously conveyed.

The dust collector main body 50 receives dust-containing gas G derived from the joint duct 40 and performs dust-collecting treatment on the dust-containing gas G. The suction blower for sucking the dust-containing gas G is sucked. (51) and a bug filter (52) for carrying out a predetermined process for the dust-containing gas (G) sucked by the suction blower (51).

And the joint duct 40 opened between the extruder 90 and the dust collector main body 50 is formed in the spiral shape wound once in sectional drawing, and this extruder 90 arrange | positioned in parallel in the moving direction of the extruder 90 is carried out. Elongated container 41 set to a length size substantially equal to the moving range of the < RTI ID = 0.0 >), < / RTI > It has the basic structure provided with the lid member 46 which extends, and the standing partition board 49 extended to the full length of the longitudinal direction settled in the bottom part of the long length container 41. As shown in FIG.

The long length container 41 protrudes upward from the bottom plate 42 of the long length reaching the movement range of the extruder 90 and one end of the bottom plate 42 (the end of the extruder 90 side). (V) a short high sidewall 43 extending to the full length in the long direction, and a short high sidewall protruding upward to face the short high sidewall 43 from the other end of the bottom plate 42 ( It is comprised by the side wall 44 longer and higher than 43, and the pair of end wall 45 of the longitudinal direction which respectively closes both ends.

The lid member 46 extends from the upper end of the long high sidewall 44 to the full length of the long high sidewall 44 protruding toward the short high sidewall 43 and at the leading end of the top plate 47. Consists of a partition plate 48 hanging from the top protruding downward. In this embodiment, the width | variety size of the top plate 47 is set to about 3/4 of the inside size between each side wall 43, 44, and only the space | floor which hanged from the top plate 48 is lower The upper and lower sizes are set so that the tip does not contact the bottom plate 42. This allows filling (W) to flow between the lower end of the partition plate 48 hung from above and the top of the bottom plate 42. A first gap 49a is formed that extends to the full length in the longer direction.

In addition, the extraction duct 47a for pulling out the connected vibration damping gas G is connected in place of the top plate 47, and is supplied from the extruder 90 to the joint duct 40 via the gas phase duct 30. The dust-containing gas G is supplied to the dust collector main body 50 through the discharge duct 47a.

In the joint duct 40 configured as described above, the filling (W) is filled by a space enclosed in the bottom plate 42, the long and high side wall 44, the pair of end walls 45, and the standing partition plate 49. While the liquid filling chamber 40a is formed, the water surface of the filling water W existing between the partition plate 48 and the standing partition plate 49 hanging from above, and the partition plate 48 hanging from above, The dust deposition chamber 40b is formed by the part which protruded upward from the filling | cleaning W, the top plate 47, the long high side wall 44, and the space which belonged to the bottom plate 42. As shown in FIG.

That is, the liquid filling chamber 40a of the long length container 41 is filled so that the liquid level is higher than the lower end of the partition plate 48 which hangs from above, and lower than the upper end of the standing partition plate 49. By filling the water W, a sealed dust deposition chamber 40b is formed. And even if the inside of the dust deposition chamber 40b becomes a negative pressure through the extraction duct 47a by the drive of the dust collector main body 50, it fills so that the liquid level in the liquid filling chamber 40a may not flow over the standing partition plate 49. The water level of the number W is set.

On the other hand, the gas phase duct 30 is a U-shaped U-shaped duct 32 in a front view connected to the duct main body 31 formed so as to conform to the appearance of the extruder 90 and from the distal end of the duct main body 31. )

The U-shaped duct 32 has a base end 33 positioned at the lower portion between the short and high side wall 43 of the liquid filling chamber 40a and the partition plate 48 hung from above, and from the lower end of the base end 33. The intermediate part 34 connected to the left and right of the width direction in FIG. 4 of the partition board 48 lined up from above through the 1st gap 48a, and it goes upwards from the front end of this intermediate part 34. Consists of the tip (35) of the speech.

The proximal end 33 is shaped into an isosceles triangle when viewed from the side. The base end portion 33 has the same size as the width size of the extraction duct 47a, and the width size gradually decreases toward the lower side, thereby reducing the effective cross-sectional area. Secured to be equal to the effective cross-sectional area of (47a), so that the lower part fits in a narrow gap between the short and high sidewalls 43 of the joint duct 40 and the partition plate 48 hanging above. It is.

The intermediate portion 34 is connected to the proximal end 33 in a state where the upper and lower width sizes are set to be equal to the width of the lower portion of the proximal end 33, and the distal end 35 has a medium width size. It is connected to the intermediate part 34 in the size set state similarly to the up-down size of the part 34, and is installed.

In the present embodiment, the tip is sharpened in cross section so as to reach the cross section of the lower portion of the base end portion 33, the cross section of the intermediate portion 34, and the cross section of the tip portion 35. In the U-shaped dewatering projections 36 are provided in pairs before and after. Therefore, when the U-shaped duct 32 moves back and forth inside the filling W in the liquid filling chamber 40a, the filling which collides with the end surface of the U-shaped duct 32 in the presence of the dehydration protrusion 36 is performed. The water flow relative to the U-shaped duct 32 of (W) becomes a laminar flow, thereby preventing imperfections such as filling (W) flowing in the liquid filling chamber 40a.

According to the gas phase duct 30 comprised in this way, the front end part 35 of the liquid filling chamber 40a was set in the state which made the partition board 48 hanged from the upper part into the intermediate part 34 of the U-shaped duct 32. By placing the partition plate 48 and the standing partition plate 49 hanging from above, and placing the upper end of the tip part 35 above the water level of filling (W) (FIG. 1), U After the female duct 32 is in the water-sealed state, the gas phase duct 30 can be connected to the joint duct 40.

Next, returning to FIG. 2, in the work area Z1 in the kiln inlet C2, as shown by a thick dotted line, a dust multiple emission area Z2 is further set. This dust multi-discharge area Z2 is a space where dust from the kiln inlet C2 in which the furnace lid 102 has been peeled off is most collected in the work area Z1. In the present embodiment, the kiln inlet hood ( Although the lower end of 103 and the height position of the leveler 93 of the extruder 90 are set, it is not limited to this, It can set to an appropriate range according to a situation in the working area Z1.

The inside of the gas phase duct 30 is captured by the dust collection hood 20 by setting the pressure to negative pressure through the joint duct 40 by driving a suction blower omitting the illustration provided in the dust collector main body 50. The collected dust is introduced into the dust collector main body 50 through the gaseous duct 30 and the joint duct 40 together with the intake air, and captured by the dust collector main body 50 by, for example, a bug filter or the like. Only clean air is discharged to the outside.

FIG. 5 is a schematic perspective view showing one embodiment of a dust collecting hood 20 according to the present invention, and FIG. 6 is an explanatory view of the side view thereof. As shown in these diagrams, the dust collection hood 20 includes a pair of side covers 21 and a pair of side obstruction covers 21 in the width direction (the direction perpendicular to the ground in Fig. 6) on both sides of the work area Z1. In the upper part between the cover 21, the housing 22 of the plurality of chambers installed in the position slightly spaced apart from the front end of the kiln inlet hood 103, the front end of each housing 22, and the kiln inlet hood The upper flap 23 opened between the tip ends of 103, and the lower flap (lower cover plate) which protruded toward the lower part of the dust emission area Z2 from the front end part of the lower side of each housing 22. (24), a change in posture between the contact posture at which the front end of the upper flap 23 contacts the kiln inlet hood 103, and the contact release posture at which the front end contacts the kiln inlet hood 103 is released. The cylinder device 25 as a drive means to make it is provided is comprised.

In the present embodiment, the side cover cover 21 is set to a size smaller than the size of the top and bottom of the work area Z1, and is orthogonal to the furnace row direction of the coke oven C. Direction size) is set to be substantially the same as the size between the buck stay 101 and the side wall of the extruder main body 91, whereby the furnace front position (i.e., the work area ( The widthwise both sides of Z1)) are covered by a pair of side screening covers 21.

The housing 22 includes a top plate 22a positioned slightly below the lower end of the kiln entrance hood 103, a bottom plate 22b facing in parallel to the top plate 22a, and a top plate ( 22a) and a back plate 22c covering between the rear end portions of the bottom plate 22b and a frame 22d supporting them, and the dust trapped between them between the top plate 22a and the bottom plate 22b is vaporized. A suction passage leading to the duct 30 is formed.

The front end portion of the gas phase duct 30 in a bifurcated state is connected to the housing 22 via the back plate 22c as shown in FIG. 5. Moreover, in each top plate 22a, the forward ascending recessed part 22e is provided toward the coke oven C extended in the front-back direction from the center part of the width direction, and the cylinder apparatus 25 is provided in this inclined recessed part 22e. It is installed.

The upper flap 23 has a flap main body 23a formed in a letter shape of "ヘ" as viewed from the side, and a bracket 23b protruding obliquely upward from the rear end of the flap main body 23a. We are equipped with). The upper flap 23 is freely rotatable around the support shaft 26 extending in the horizontal direction parallel to the coke oven row whose proximal end is provided at the upper end of the front end of the frame 22d. In addition, it is possible to change the posture between the contact posture at which the tip top face contacts the bottom face of the tip end of the kiln inlet hood 103, and the contact posture is released so that the tip end moves forward and inclined downward.

In addition, in FIG. 5, while the uppermost flap 23 of the leftmost end and the rightmost end exemplifies the state set in the contact release attitude, the state which is set in the attitude which the upper two center flaps 23 contact. To illustrate.

The upper flap 23 may be short in size compared with the pitch of the coke oven C (distance between the centerlines extending in the vertical direction of the buck stay 101 to be laid), and the size is long. May be set. In the example shown in FIG. 5, the width size of the upper flap 23 is set to be the same as the pitch of the coke oven C. However, the present invention is not limited thereto. For example, the upper flap 23 The width can be appropriately set depending on the situation, such as the length of 1.5 pitches of the coke oven C.

In the present embodiment, the bottom flap 24 is set to have a width size substantially equal to the pitch of the coke C, and the bottom plate (b) is in a state corresponding to the kiln inlet C2 of each carbonization chamber C1. It is fixed to the front end of the frame 22d which supports 22b). This lower flap 24 is formed by moving forward toward the coke oven C, and the front end portion is to face a slightly upper position of the furnace lid 102 as shown in FIG. Then, in the state where the upper flap 23 is in a posture set state, the impregnated hot air flow issued from the kiln inlet C2 in which the furnace lid 102 is opened is obliquely upward due to the specific gravity difference caused by being heated to the outside air. It rises to and passes between the lower flap 24 and the upper flap 23 via the kiln inlet hood 103 as a dust scattering prevention means, and is introduce | transduced into the gaseous-phase duct 30 through the housing 22. As shown in FIG.

The cylinder device 25 includes a cylinder 25a attached to the inclined recess 22e recessed in the top plate 22a of the housing 22 in the front-rear direction, the cylinder 25a, and the front end portion. The cylinder rod 25b which protrudes from is provided. The rear end of the cylinder 25a is freely rotatable around the connecting shaft 25d by the bracket 25c provided at the rear of the inclined recess 22e, and the tip of the cylinder rod 25b is the upper portion. The rotational movement is freely axially circumscribed around the connecting shaft 23c by the bracket 23b protruding from the flap 23.

Therefore, when the cylinder rod 25b is retracted by the drive of the cylinder device 25, the flap main body 23a rotates clockwise around the support shaft 26 via the bracket 23b, and this is 6, the flap main body is set in a posture in which the tip end is in contact with the lower end of the kiln inlet hood 103 while the cylinder rod 25b is retracted, as shown by the solid line in FIG. 23a rotates counterclockwise around the support shaft 26 via the bracket 23b, and as a result, as shown by the dotted line in FIG. Posture is set to posture.

In addition, the so-called machine in which various working mechanisms, such as a furnace lid detacher 94 (FIG. 2) and a furnace lid cleaning machine, is attached to the part enclosed by the thick dotted line, ie, the dust collection hood 20, in the lower position in FIG. Since the area | region M is set and the side surface by which the said back plate 22c is protruded downward is formed in the back of this machine area | region M, it is a thing where dust is discharged | emitted outside through the machine area | region M. none.

Fig. 7 is an explanatory diagram for explaining the operation of the present invention, and 7a is a case where the vibration-impregnated air stream from the coke oven C is upflowed in a state in which the upper flap 23 is in a posture set state. 7b, when the damping airflow from the coke oven C is discharged almost horizontally in a state where the upper flap 23 is in a posture, the upper flap 23 is set in a contact release posture. Each state is shown.

First, when the dry distillation of the raw material coal in the carbonization chamber C1 is completed, the furnace lid 102 is peeled off and the red coke is exposed to the outside (see the second carbonization chamber C1 from the right in FIG. 1). In this state, dust from the carbonization chamber C1 ascends the work area Z1 of the kiln inlet C2 in conjunction with the hot air flow S1, as shown in FIG. 7A, and as a kiln as a branch scattering prevention means. It is captured by the upper flap 23 via the inlet hood 103, and is sucked in the gaseous-phase duct 30. As shown in FIG.

On the other hand, when coal is put into the carbonization chamber C1, the small lid 106 is opened with the furnace lid 102 attached to the carbonization chamber C1 (the second carbonization chamber from the left in Fig. 1). In this state, the leveler 93 (FIG. 2) of the extruder 90 is inserted into the carbonization chamber C1 at a small lid inlet to perform a reciprocating motion, so that the leveler 93 is executed. At the time of retreat of 93, as shown in FIG. 7B, the raw gas stream S2 containing pulverized coal may be ejected from a small lid opening. The raw gas stream S2 is ejected obliquely upward from the small lid inlet, but this raw gas stream S2 is captured by the lower flap 24 and introduced into the dust collection hood 20. Therefore, when the conventional lower flap 24 does not exist, the live gas stream S2 is directly directed to the front side of the extruder 90, thereby reliably preventing inadequacy such as poor working environment. .

In addition, since the lower flap 24 is provided in the dust collection hood 20, intrusion into the dust collection hood 20 of outside air from the machine area M side is effectively prevented by the lower flap 24. As the outside air flows into the dust collection hood 20, incompatibility such as deterioration of the trapping efficiency of the hot air stream S1 and the live gas stream S2 is avoided due to the dilution action.

And when moving the extruder 90, the lower flap 24 of the posture which contacts the kiln inlet hood 103 shown by the dotted line in FIG. 7C is the cylinder apparatus 25 (FIG. 5). As shown by the solid line in Fig. 7C, the posture is changed in a contact release attitude. Thereby, the extruder 90 can run smoothly, without the upper flap 23 interfering with the kiln inlet hood 103.

Moreover, by providing the upper flap 23 which can change a posture between a contacting posture and a contact release posture, for example, when the dust collector main body 50 stopped by failure etc., the upper flap 23 is contacted. By setting the posture in a release position, it is possible to distribute outside air by natural ventilation in the work area Z1 through a gap formed between the upper flap 23 and the kiln inlet hood 103. It is possible to prevent high temperature from being unsuitable for the environment, and to effectively prevent thermal deterioration of mechanisms such as the furnace lid detacher 94 and the furnace lid cleaner.

As described above, in the present invention, the dust discharged from the kiln inlet C2 of each carbonization chamber C1 of the coke oven in which the plurality of carbonization chambers C1 are provided is captured and aspirated by the dust collection hood 20. The kiln inlet of the extruder (working machine) 90 which is a kiln inlet dust collecting apparatus 10 of the coke oven to collect dust, and is used when discharging the coke from each carbonization chamber C1. Since the contact extruder 90 discharges a large amount of dust (for example, when the raw material coal is put into the carbonization chamber C1 or the carbonization chamber after completion of the dry distillation treatment) Inappropriateness that it is impossible to cope with dust bundle timing by the conventional fixed furnace side hood which becomes a state facing the kiln inlet C2 of the carbonization chamber C1 of the coke K discharge | emission from C1), etc.). This is eliminated and a large amount of dust can be reliably captured by the dust hood 20. There.

And by setting the shape so that the dust collection hood 20 can cover the upper part and both side part of the working area Z1 in the kiln inlet C2, the kiln inlet C2 of a coke oven is a kiln inlet ( Since the dust is discharged from the carbonization chamber C1 to the kiln inlet C2 because it is covered by the dust collecting hood 20 provided at the portion facing the C2), the hood is installed only on the upper portion of the conventional kiln inlet C2. In comparison, the incompatibility of avoiding to the outside from the side of the kiln inlet C2 which is not covered at all is not generated, and it is more surely captured by the dust collecting hood 20.

Moreover, the kiln inlet hood 103 as a dust scattering prevention means fixed to the coke oven C is arrange | positioned in the upper position of the kiln inlet C2, and the dust discharged | emitted from the carbonization chamber C1 by this is applicable. Since it is guided to the short high sidewall 103 and directed to the dust collecting hood 20, it is possible to almost completely eliminate the dust emission from the kiln inlet C of the coke oven C.

And the dust collection hood 20 is equipped with the upper flap 23 facing the kiln inlet hood 103, and the upper flap 23 is a contact posture in which the tip part contacts the kiln inlet hood 103. And the extruder 90 is connected to the kiln inlet C2 of the carbonization chamber C1 of the work bench by being configured to be able to change the posture between the contact release postures where the contact of the tip portion of the kiln inlet hood 103 is released. In the facing state, the tip portion of the upper flap 23 contacts the kiln inlet hood 103 by setting the upper flap 23 in a posture where the upper flap 23 is in contact, whereby the dust collecting hood 20 has a lower flap. Since the dust multi-discharge region Z2 of the kiln inlet C2 is completely enclosed via the kiln inlet hood 103 in cooperation with the 24, it is discharged from the kiln inlet C2, The dust that rises with the dust can be reliably captured by the dust collection hood 20. Can be.

Then, when the extruder 90 moves, the contact of the upper flap 23 with the kiln inlet hood 103 of the upper flap 23 is eliminated by changing the posture of the upper flap 23 in a contact release posture. The upper flap 23 can move smoothly without the interference | interference with the kiln entrance hood 103.

This invention is not limited to the said embodiment, but also includes the following content.

(1) In said embodiment, although the kiln inlet dust apparatus 10 is provided in the extruder 90, this invention is limited to what is attached to the extruder 90 by the kiln inlet dust apparatus 10. Instead, it may be provided in a guide car traveling on the so-called coke side, which is the side from which coke is extruded.

(2) In the above embodiment, the existing kiln inlet hood 103 fixed to the coke oven C side is used as the dust scattering prevention means of the present invention, but the kiln inlet hood 103 is used for its original purpose. You may use it as a dust collection means. By doing in this way, the dust discharged from the open kiln inlet can be captured by both of the kiln inlet hood 103 and the dust collecting hood 20 according to the present invention. Dust emission from the kiln inlet can be more effectively prevented.

(3) In the above embodiment, the lower flap 24 is fixed to the frame 22d of the housing 22, but the present invention is limited to that of the lower flap 24 fixed to the frame 22d. Alternatively, similarly to the upper flap 23, it may be possible to rotate around the horizontal axis, or may be slidable so that the amount of protrusion from the bottom plate 22b of the dust collecting hood 20 can be adjusted. By doing so, it is possible to adjust the angle of the lower flap 24 or vary the amount of protrusion from the bottom plate 22b of the lower flap 24 in accordance with the occurrence state of dust from the kiln inlet C2. It is possible to capture dust more effectively.

(4) Although the kiln inlet hood 103 and the assembly duct 105 fixed to the coke oven C are provided above the coke oven C2 in the above embodiment, the present invention is a kiln entrance hood. Installation of the 103 and the assembly duct 105 is not essential, and it is not necessary to install it in particular. In this case, the kiln inlet dust is performed only by the kiln inlet dust collector 10 mounted on the extruder 90, but the generation of dust from the coke oven C is not so severe at the time of dry distillation treatment, In addition, it is possible to avoid by sufficiently cleaning the furnace lid 102, so that the dust collecting hood 20 and the gas phase duct 30 of the substrate are used only when the extruder 90 or the guide car is working. Even if the kiln entrance dust is collected, the scattering of dust to the outside air cannot be sufficiently prevented.

(5) In the above embodiment, the existing kiln inlet hood 103 is employed as the dust scattering prevention means according to the present invention. It is not limited, You may provide the exclusive dust scattering prevention means. As an exclusive dust scattering prevention means, the dust guide plate provided between the buck stays 101 of the upper part of the kiln inlet C2 is mentioned. In this case, the dust guide plate is sized such that its front end contacts the tip of the dust guide plate in a posture set in a posture in which the upper flap 23 is in contact.

(6) In the above embodiment, the flap main body 23a is set in a contact release posture spaced apart from the kiln inlet hood 103 by advancing the cylinder rod 25b by the regular drive of the cylinder device 25. On the other hand, although the flap main body 23a is set in the posture of contact with the kiln inlet hood 103 by retracting the cylinder rod 25b by the reverse drive of the cylinder apparatus 25, instead of doing this, The front end of the cylinder rod 25b is directly connected to the flap main body 23a, whereby the flap main body 23a is brought into contact with the kiln inlet hood 103 when the cylinder rod 25b is advanced. When the rod 25b is retracted, the contact with the kiln inlet hood 103 of the flap main body 23a may be released.

(7) The kiln inlet dust collector 10 of the present invention is characterized in that the dust collection hood 20 mounted on the extruder 90 for the kiln inlet C2 of the coke oven C firstly exists. In addition to this, it also features as a kiln entrance dust collecting system. When the kiln inlet dust collector 10 of the present invention is viewed as a kiln inlet dust collecting system, the gas phase duct 30 mounted on the extruder 90, the joint duct 40 to which the gas phase duct 30 is connected, When the dust collector main body 50 is supplied with the dust-containing gas G from the gas phase duct 30 via the joint duct 40, the one related to the above embodiment is particularly adopted for the dust collection hood 20. Even if it is not done, it is completed as a kiln entrance dust collecting system.

Moreover, in the said embodiment, what installed the standing partition plate 49 as the joint duct 40 is employ | adopted, but this invention is that the joint duct 40 has the standing partition plate 49, It is not limited, You may employ | adopt the watertight joint duct in which the standing partition board 49 does not exist. Moreover, you may connect between the gaseous-phase duct 30 and the dust collector main body 50 with a flexible tube instead of the above joint duct.

According to the kiln inlet dust collector of claim 1, since the dust collecting hood is provided at a part facing the kiln inlet of the work machine used to discharge the coke from each carbonization chamber, the work machine discharges a large amount of dust. The dust collecting hood faces the inlet of the carbonization chamber while moving to the carbonization chamber of the work object, whereby a large amount of dust can be reliably captured by the dust collecting hood. Therefore, the conventional fixed furnace side hood eliminates the inadequacies that the dust bundle timing cannot be coped and that a reliable dust generation prevention effect cannot be obtained.

Then, by setting the shape of the dust collecting hood so as to cover the upper part, both sides and the lower part of the dust discharge area at the kiln inlet, the kiln inlet to the coke oven is covered by such a dust collecting hood. The dust discharged from the dust emission area of does not cause incompatibility such as falling out from the side or the bottom of the kiln inlet where dust is not covered at all, compared with the hood installed only at the top of the conventional kiln inlet, and improves the dust collection efficiency. Can be.

According to the kiln inlet dust collector of claim 6, the gas phase duct disposed in the work machine used to discharge the coke from each carbonization chamber and attracting dust together with the air flow, the connection duct to which the gas phase duct is connected, and the connection Since the stationary dust collector main body connected to the duct is provided, the dust generated at the kiln inlet to the coke is captured and then aspirated by the gaseous coke together with the air flow, and is collected by the dust collector main body which is placed through the connecting duct. can do.

Since the dust collector main body is stationary, it is possible to adopt a large-sized one having excellent dust collection capacity, without being influenced by the weather conditions, compared with the case where the dust collector is installed in the gas phase of the working machine. Dust generated at the kiln entrance to the coke oven can be reliably collected and collected.

1 is a front view of the coke oven as seen from the machine side (the side on which the extruder is arranged).

Figure 2 is a schematic side view of an extruder for explaining one embodiment of the kiln inlet dust collector according to the present invention.

3 is a schematic plan view of the kiln inlet dust collector shown in FIG.

4 is a perspective view showing one embodiment of a joint duct.

5 is a schematic perspective view showing one embodiment of a dust collecting hood according to the present invention.

FIG. 6 is an explanatory view of a side view of the dust collecting hood shown in FIG. 5. FIG.

Fig. 7 is an explanatory view for explaining the operation of the present invention. Fig. 7A shows the upper flap when the impregnated airflow from the coke oven is in the upflow with the top flap in the posture. When the damping airflow from the coke oven is discharged in the substantially horizontal direction in a state set in the contact posture, Fig. 7C shows a state where the upper flap is set in the contact release posture respectively.

8 is a perspective view showing an example of a conventional kiln entrance dust collector.

(Explanation of the sign)

10 --- kiln entrance dust collector 20 --- dust collection hood 21 --- side cover

22 --- Housing 22a --- Top plate 22b --- Bottom plate

22c --- back panel 22d --- frame 22e ---

23 --- upper flap 23a --- flap body 23b --- bracket

23c --- Connecting shaft 24 --- Lower flap (lower cover plate)

25 --- cylinder unit 25a --- cylinder 25b --- cylinder rod

25c --- bracket 25d --- connecting shaft 26 --- supporting shaft

30 --- Weather duct 31 --- Duct body 32 --- U-shaped duct

33 --- Base 34 --- Middle 35 --- Tip

36 --- Dehydration projection 40 --- Joint duct 40a --- Liquid filling chamber

40b --- Dust deposition chamber 41 --- Long length container 42 --- Bottom plate

43 --- short and high sidewalls 44 --- long and high sidewalls 45 --- end walls

46 --- lid member 47 --- top plate

48 --- slats slashed from above

49 --- standing divider plate 50 --- dust collector body

51 --- suction blower 52 --- bug filter 90 --- extruder

91 --- Extruder body 92 --- Extruder 92a --- Ram body

92b --- ram head 92c --- pinion 93 --- leveler

94 --- furnace lid remover 101 --- buckstay 102 --- furnace lid

103 --- kiln inlet hood (dust protection means) 104 --- connection duct

104a --- opening and closing damper 105 --- assembly duct 106 --- small lid

107 --- service home 109 --- riser 110 --- collecting main

C --- Coke oven C1 --- Carbonization chamber C2 --- Kiln entrance

C3 --- Track G --- Impregnated gas K --- Coke

S1 --- Hot Air S2 --- Fresh Gas

X --- Dust collector for the hood

Z1 --- working area Z2 --- dust emission area

Claims (7)

In the kiln inlet dust collector of the coke oven, which collects, sucks and collects dust emitted from the kiln inlet of each carbonization chamber of the coke oven in which a plurality of carbonization chambers are provided, The dust collection hood is a kiln inlet dust collector of the coke oven, characterized in that it is provided in the part facing the kiln inlet of the working machine, such as an extruder, a guide car, etc. used when discharging coke from each carbonization chamber. The apparatus of claim 1, wherein the dust collecting hood is configured to cover the upper and both sides of the work area at the kiln inlet. 3. The kiln inlet dust collector of claim 2, wherein the dust collecting hood further comprises a lower cover plate capable of covering a lower portion of the dust emission region at the kiln inlet. The dust scattering means according to any one of claims 1 to 3, wherein a dust scattering means is provided at an upper position of the kiln inlet, which is fixed to the coke oven and prevents the scattering of dust outside the kiln inlet. Kiln entrance dust device to coke oven. 5. The dust collecting hood according to claim 4, wherein the dust collecting hood has an upper flap facing the powder scattering preventing means, and the upper flap has a contact posture at which the tip contacts the dust scattering preventing means, and the contact release from which the contact is released. A kiln entrance dust collector for coke ovens configured to be able to change posture in posture. As each carbonization chamber of the coke oven in which a plurality of carbonization chambers are provided, the carbonization inlet collecting device of the coke oven which captures, attracts and collects the dust discharged from the kiln inlet, A gas phase duct disposed in working machines such as an extruder and a guide car used to discharge coke from each carbonization chamber and sucking dust together with air flow; A connection duct to which the gas phase duct is connected; A kiln inlet dust collector of a coke oven, characterized by comprising a stationary dust collector main body connected to the connection duct. The kiln inlet dust collector of claim 6, wherein the connection duct is configured such that the connection state with the gas phase duct is continuously maintained in the sealed state with the outside air even by the movement of the work machine.