CN114940912B - Automatic exhaust gas shutter air door adjusting mechanism and exhaust gas shutter - Google Patents
Automatic exhaust gas shutter air door adjusting mechanism and exhaust gas shutter Download PDFInfo
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- CN114940912B CN114940912B CN202210467891.6A CN202210467891A CN114940912B CN 114940912 B CN114940912 B CN 114940912B CN 202210467891 A CN202210467891 A CN 202210467891A CN 114940912 B CN114940912 B CN 114940912B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/10—Regulating and controlling the combustion
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Abstract
The invention discloses an automatic exhaust shutter air door adjusting mechanism and an exhaust shutter, and relates to the technical field of coke oven production, wherein the automatic exhaust shutter adjusting mechanism comprises a hanging plate assembly, the hanging plate assembly comprises a mounting frame and a hanging plate, one end of the hanging plate is rotationally connected with a first mounting frame, the other end of the hanging plate is connected with a traction part through an extending plate, and the traction part is used for pulling the hanging plate to change the air inflow of an air inlet; the automatic exhaust gas shutter adjusting mechanism can also adopt a push plate assembly or a turning plate assembly; the air inlet of the waste gas shutter is provided with the automatic adjusting mechanism. According to the invention, the adjusting mechanism is added to the air inlet of the existing shutter, the existing structure of the exhaust gas shutter is not changed, the accurate and timely adjustment of the air quantity of the air inlet is realized, and the cost is very low.
Description
Technical Field
The invention relates to the technical field of coke oven production, in particular to an automatic exhaust gas shutter air door adjusting mechanism and an exhaust gas shutter.
Background
In the thermal regulation of coke oven production, the regulation of the amount of air entering the coke oven is usually measured and regulated manually one by one. However, the top of the shutter is provided with a brace, a cover plate, a spanner and other parts, the shutter needs to run once every 20-30 minutes, mechanical injury is possibly caused to a human body, and the space for manual operation of the side face of the shutter is limited. The adjustment quantity is large, and the gas is in a gas area, so that the environment temperature is high, and the long-time work of workers is not facilitated. Therefore, improvement of the shutter air amount adjustment system is required.
Although some modes different from the traditional manual air quantity regulation mode exist at present, the component structure of the shutter needs to be greatly modified to replace the existing components of the shutter, so that the phenomena of wasting the existing components and not conforming to the design sizes of other surrounding facilities can be caused; therefore, the current improvement mode has higher manufacturing cost and is not beneficial to industry application. For example: CN107674688A discloses a damper opening adjusting device of a coke oven exchange shutter, which comprises a lower circular ring base, an upper adjusting ring, an adjusting combination blade and the like, wherein the adjusting combination blade is arranged between the upper adjusting ring and the lower circular ring base; when the throttle opening is adjusted according to the scheme, the proper throttle opening is selected according to the coke oven heating requirement, and the hand driving lever on the upper adjusting ring is moved clockwise, so that the movable blades are subjected to equal displacement, and the throttle round hole is reduced.
According to the scheme, the throttle opening adjusting device is designed to replace a manual placement adjusting plate for adjustment, but the structure of the exhaust gas disc is improved, and a plurality of parts such as movable blades and fixing pins are installed on the exhaust gas disc, namely, the exhaust gas disc is required to be matched with the exhaust gas shutter again. Moreover, the manual movement of the hand lever is still required, and the air quantity is still substantially manually adjusted. Even if the power device is connected through the hand driving lever for automatic adjustment, the surface space of the adjusting ring is limited, the structure of the adjusting blade is complex, and the power device is not installed in enough space, and other structures of the shutter also need to be adjusted. Moreover, the on-site use environment of the shutter is poor, and coke powder, dirt and the like are easy to cause the blocking of the movable blades, so that the regulating device cannot be used normally.
CN113278424a discloses an exhaust gas shutter capable of realizing automatic regulation, which comprises a small air door inlet pipe, a large air door inlet pipe, a small air door regulating valve, a large air door regulating valve, a chamber a and a chamber B, wherein the exhaust gas regulating valve a, the exhaust gas regulating valve B, Y type exhaust gas chamber, a lean gas inlet pipe, a lean gas regulating valve, a small flue connecting pipe a and a small flue connecting pipe B, and further comprises a pressure measuring device. The control system controls the opening and closing of each regulating valve to change the flow direction of lean gas, air and waste gas in the waste gas shutter, thereby realizing automatic exchange.
The above-mentioned scheme is essentially the new product of waste gas shutter, i.e. redesigned waste gas shutter structure, has replaced current mechanical transmission structural mode. Because the structure of the exhaust gas shutter is greatly different from the existing structure, the top is provided with an extended inlet pipe, and the whole space structure is increased, so that the exhaust gas shutter is not matched with the design size and the position of other equipment in the existing coke oven system. In order to use the exhaust gas shutter, the design size and position of other relevant equipment of the coke oven system need to be adjusted, and the cost is high. Therefore, the scheme is only suitable for newly installing and designing the coke oven, and the original coke oven which is installed and used cannot be transformed and upgraded.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an automatic air door adjusting mechanism of an exhaust gas shutter and the exhaust gas shutter, wherein an air inlet of the existing shutter is additionally provided with an adjusting mechanism, the existing structure of the exhaust gas shutter is not changed, the accurate and timely adjustment of the air quantity of the air inlet is realized, and the cost is very low.
In order to achieve the above object, the present invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides an automatic adjustment mechanism for an exhaust gas shutter damper, including a hanger plate assembly, where the hanger plate assembly includes a mounting frame and a hanger plate, one end of the hanger plate is rotatably connected to the first mounting frame, and the other end of the hanger plate is connected to a traction portion through an extension plate, and the traction portion is used for pulling the hanger plate to change an intake air amount of an air intake.
As a further implementation, the extension plate forms a step with the hanger plate.
As a further implementation manner, a balancing weight is arranged on one side of the bottom surface of the hanging plate, which is close to the extending plate.
As a further implementation manner, the first installation frame is adapted to the air inlet;
or, at least one side of the first mounting frame and the air inlet form an open area, and the open area is used for placing the adjusting plate.
As a further implementation, the hanger plate is connected to the first mounting frame by a hinge.
In a second aspect, an embodiment of the present invention further provides an automatic exhaust shutter damper adjustment mechanism, including a push plate assembly, where the push plate assembly includes a second mounting frame, and a push plate slidably connected to the second mounting frame, and the push plate is connected to a push-pull mechanism, so that the push plate moves along the mounting frame and changes an intake air amount of the air inlet.
As a further implementation manner, one end of the push plate is connected with the fine adjustment plate.
As a further implementation mode, the fine adjustment plate is provided with a plurality of adjusting holes, and connecting pieces connected with the push plate are arranged in the adjusting holes.
As a further implementation mode, the push-pull mechanism comprises a pull rod, one end of the pull rod is connected with the push plate, and the other end of the pull rod is connected with the connecting rod mechanism.
In a third aspect, an embodiment of the present invention further provides an automatic exhaust gas shutter damper adjustment mechanism, including a flap assembly, where the flap assembly includes a flap, and a rotation mechanism connected to the flap, and the rotation mechanism is capable of driving the flap to rotate to change an intake air amount of the air inlet.
As a further implementation manner, the rotating mechanism comprises a rotating shaft and a transmission mechanism connected with the rotating shaft.
As a further implementation manner, the rotating shaft is arranged along a first direction or arranged along a second direction perpendicular to the first direction.
As a further implementation manner, the turning plate is a circular plate or a rectangular plate.
In a fourth aspect, embodiments of the present invention also provide an exhaust gas shutter including the automatic adjustment mechanism.
As a further implementation, the traction portion passes through the top of the housing and is coupled to the drive mechanism.
In a fifth aspect, embodiments of the present invention also provide an exhaust gas shutter including the automatic adjustment mechanism.
As a further implementation, the push-pull mechanism extends from the housing sidewall and is coupled to the drive mechanism.
In a sixth aspect, embodiments of the present invention also provide an exhaust gas shutter including the automatic adjustment mechanism.
As a further implementation, the rotating mechanism is mounted on the side of the housing and is connected with the driving mechanism.
The beneficial effects of the invention are as follows:
(1) The adjusting mechanism is arranged at the air inlet, the component structure of the exhaust gas shutter is not required to be improved, the adjusting mechanism is suitable for the exhaust gas shutter in a general mechanical transmission structure, the waste of the existing components is avoided, and the improvement cost is low; the method can be applied to upgrading and reforming the original shutter in newly-built coke ovens and production.
(2) According to the invention, the hanging plate type, pushing plate type or turning plate type adjusting mechanism is arranged at the air inlet, and the opening degree of the air inlet can be adjusted under the control of the driving mechanism, so that the aim of automatically adjusting the air quantity is fulfilled; the shutter is suitable for both single-heating shutters and double-heating shutters, and has strong universality.
(3) The lifting plate component only has a traction part penetrating out of the surface of the shell, the push-pull mechanism in the push plate component is arranged on the side surface or the end surface of the shell of the shutter, and the rotating shaft in the turning plate component penetrates through the side surface or the end surface of the shell; the outer space of the shell can be reasonably utilized.
(4) In the invention, the plurality of exhaust shutters are uniformly controlled by the driving mechanism to realize synchronous adjustment, thereby realizing the rapid adjustment of the air inflow of each exhaust shutter; the air inlets of the exhaust gas shutter can be uniformly, accurately and automatically adjusted.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic illustration of a hanger plate assembly in accordance with one or more embodiments of the present invention;
FIG. 2 is a perspective view of a hanger plate assembly according to one or more embodiments of the present invention;
FIG. 3 is a top plan view of a hanger plate assembly in accordance with one or more embodiments of the present invention;
FIG. 4 is a cross-sectional view of a hanger plate assembly in accordance with one or more embodiments of the present invention;
FIG. 5 is a schematic view of a push plate assembly according to one or more embodiments of the present invention;
figure 6 is a perspective view of a push plate assembly according to one or more embodiments of the present invention;
fig. 7 is a perspective view of a flap assembly according to one or more embodiments of the invention;
fig. 8 is a sectional view of a flap assembly according to one or more embodiments of the invention;
FIG. 9 is a schematic view of a circular flap according to one or more embodiments of the present invention;
fig. 10 is a schematic view of a rectangular flap according to one or more embodiments of the present invention installed in a first direction;
fig. 11 is a schematic view of a rectangular flap according to one or more embodiments of the present invention installed in a second direction;
fig. 12 is a schematic diagram of a plurality of exhaust shutter arrangements according to one or more embodiments of the present invention.
The device comprises a first mounting frame, a second mounting frame, a hanging plate, a traction part, a stretching plate, a 5, a shell, a 6, an adjusting plate, a 7, a balancing weight, a 8, a hinge, a 9, a push plate, a 10, a fine adjusting plate, a 11, a pull rod, a 12, an adjusting hole, a 13, a connecting piece, a 14, a first connecting rod, a 15, a second connecting rod, a 16, a mounting seat, a 17, a second mounting frame, a 18, a turning plate, a 19, a rotating shaft, a 20, a transmission shaft, a 21, an air cover plate, a 22, a chute, a 23 and a box body.
Detailed Description
Embodiment one:
the axial direction of the transmission shaft 20 is a first direction, and the direction perpendicular to the first direction is a second direction.
The embodiment provides an automatic exhaust shutter damper adjusting mechanism, which comprises a hanging plate assembly shown in fig. 1, wherein the hanging plate assembly is suitable for a single-heating shutter and is also suitable for a reheating shutter.
Specifically, the hanger plate assembly comprises a first mounting frame 1, a hanger plate 2, a traction part 3 and other parts, and as shown in fig. 2 and 3, the shape of the first mounting frame 1 is adapted to the air inlet, namely, the hanger plate assembly is of a rectangular frame structure; the inside of the first installation frame 1 is provided with a rectangular opening for installing the hanging plate 2, and the size of the rectangular opening is set according to the actual air quantity regulation requirement.
The first mounting frame 1 may be sized such that its boundary is exactly clamped into the air inlet, and the air intake amount of the air inlet is completely adjusted by the opened and closed state of the hanger plate 2.
Of course, the size of the first mounting frame 1 may be smaller than the size of the air inlet, i.e. one or both sides of the first mounting frame 1 in the second direction are at a distance from the side wall of the air inlet, forming an open area. The open area is closed or opened through a conventional adjusting plate 6, and the adjusting plate 6 is matched with the hanging plate 2 to realize the adjustment of the air inflow of the air inlet; through the cooperation of hanger plate 2 and regulating plate 6, make air input regulation mode more nimble.
One end of the hanging plate 2 is rotatably connected with one end of the first mounting frame 1, and the hanging plate 2 is positioned at the lower side of the first mounting frame 1. Preferably, the length direction of the hanger plate 2 is consistent with the first direction to accommodate conventional opening adjustment, where the pulling portion 3 is threaded out of the top of the housing 5.
At this time, the connection end of the hanger plate 2 and the first mounting frame 1 may be located near the side where the sector wheel is located, and the traction portion 3 is penetrated out from the other side. Alternatively, the connecting end of the hanger plate 2 and the first mounting frame 1 is located at a side away from the sector wheel, and in this mounting method, the traction portion 3 needs to avoid the mounting position of the sector wheel and other components, and the length of the extension plate 4 needs to be extended.
Of course, the length direction of the hanger plate 2 may be identical to the second direction, and the traction portion 3 may be penetrated out from the side of the housing 5 due to the fact that the air inlet is close to the edge of the housing 5.
As shown in fig. 1 and 4, the other end of the hanger plate 2 is an opening and closing control end of the hanger plate 2, and the state adjustment of the hanger plate 2 is realized by connecting the traction part 3.
In the present embodiment, the hanger plate 2 is connected to the first mounting frame 1 by the hinge 8; by providing the first mounting frame 1, the hanger plate 2 is conveniently mounted. In the case of not considering the installation difficulty, the first installation frame 1 may not be provided, that is, the hanger plate 2 is directly installed at the lower side of the air inlet.
It will be appreciated that in other embodiments the hanger plate 2 may also be in a rotational connection with the first mounting frame 1 in other forms, for example by a bearing mounted shaft connection.
In order to facilitate the traction of the hanger plate 2, the hanger plate 2 is connected with the extension plate 4 away from the rotating end; the extending plate 4 is parallel to the hanging plate 2, and the installation height of the extending plate is lower than that of the hanging plate 2, so that the extending plate 4 and the hanging plate 2 form a step structure to adapt to the thickness of an air inlet, and the end part of the hanging plate 2 can completely enter the rectangular opening of the first installation frame 1, so that the rectangular opening is completely closed.
When the hanger plate 2 is in a state of closing the rectangular opening, the upper surface of the extending plate 4 is attached to the lower surface of the top plate of the housing 5. The length of the extension plate 4 may be set according to practical requirements as long as it is satisfied that the traction portion 3 can extend from the top plate of the housing 5.
In this embodiment, the extension plate 4 is L-shaped, and its short side is connected to the hanger plate 2 to form a sinking step. The balancing weight 7 is arranged between the bottom surface of the hanging plate 2 and the side surface of the short side of the extending plate 4, and the hanging plate 2 can fall under the action of gravity under the release state of the traction part 3, so that the quick adjustment of the size of the air inlet is realized.
The traction portion 3 is an elongated flexible member such as a wire rope; because the transverse dimension (e.g. diameter) of the traction part 3 is smaller, the original components at the top of the exhaust gas shutter such as the transmission shaft 20 can be easily avoided, and the normal operation of the mechanical structure at the top of the exhaust gas shutter is not affected.
One end of the traction portion 3 is fixedly connected with the extension plate 4, for example, by installing a bolt at the end of the traction portion 3, and the bolt is connected with a threaded hole formed in the extension plate 4. The traction part passes through the top plate of the shell 5, and the other end is connected with a driving mechanism, and the lifting operation of the traction part 3 on the hanger plate 2 is realized through the driving mechanism.
For the recuperation shutter, it includes two air intakes, and the drive mechanism can be connected to the traction portion 3 of two air intakes to realize the synchro control of two air intake air input, realize automatic regulation.
For an exhaust gas coke-entering oven system comprising a plurality of shutters, the traction part 3 of each shutter can be connected with a driving mechanism so as to realize synchronous control of the air inflow of each air inlet.
The exhaust gas shutter needs to open the air cover plate 21 for each period of time to enable the air inlet to enter air, and then the air cover plate 21 is closed after a period of time; the above process requires exchange every 20min or 30 min. The automatic adjusting mechanism of the exhaust gas shutter of the embodiment adopts a hanging plate type structure, and the air quantity entering the exhaust gas shutter is adjusted.
Moreover, in the embodiment, only the traction part 3 extends out of the shell 5, and other parts are positioned in the air inlet, so that the installation requirement of a narrow space at the top of the exhaust gas shutter is met. When the air inflow is required to be reduced, the traction part 3 lifts the hanging plate 2 to achieve the set air inflow requirement, and when the air inflow is required to be increased, the hanging plate 2 below the traction part 3 achieves the corresponding air inflow requirement; thereby realizing the rapid adjustment of the intake air amount.
When the air inlet needs to be fully opened, the hanging plate 2 can quickly open the air inlet by means of dead weight due to the existence of the balancing weight 7. Through the automatic adjusting mechanism of the waste gas shutter of the embodiment, the change of the hanging plate by 0-90 degrees can be realized, namely the full closing or the full opening can be realized.
According to the embodiment, the hanging plate component is added to the air inlet of the existing shutter, the hanging plate component comprises the hanging plate 2 and the traction part 3 for controlling the opening and closing of the hanging plate 2, only the traction part 3 penetrates out of the surface of the shell 5, the action of the original mechanical structure at the top of the exhaust shutter is not influenced, and the hanging plate component can meet the installation requirement of a narrow top space; the adjustment of the angle of the hanger plate is realized through the traction part 3, so that the accurate and automatic adjustment of the air inflow is realized.
Embodiment two:
the embodiment provides an automatic exhaust gas shutter air door adjusting mechanism, which comprises a push plate assembly, and achieves automatic air inflow adjustment through movement of the push plate relative to an air inlet, as shown in fig. 5.
Specifically, the push plate assembly includes a second mounting frame 17, a push plate 9 and a push-pull mechanism, as shown in fig. 6, the second mounting frame 17 is mounted on the inner side of the air inlet, and the shape of the second mounting frame 17 is adapted to the air inlet, namely, the rectangular frame structure.
The corresponding two sides of the second mounting frame 17 are provided with sliding grooves 22, and the push plate 9 can move along the top of the air inlet through the sliding grooves 22.
Similarly, the axial direction of the transmission shaft 20 is taken as a first direction, and the direction perpendicular to the first direction is taken as a second direction. In the present embodiment, the moving direction of the push plate 9 is consistent with the second direction, that is, the sliding grooves 22 are disposed on both sides of the length direction of the air inlet, so as to adapt to the setting direction of the conventional adjusting plate 6. At this time, the push-pull mechanism protrudes from the side wall of the housing 5.
Of course, in other embodiments, the direction of movement of the push plate 9 may also be consistent with the first direction, where the push-pull mechanism protrudes from the end face of the housing 5.
As shown in fig. 5, the push plate 9 is a rectangular plate, the push plate 9 is connected with a push-pull mechanism, and the push plate 9 is controlled to act through the push-pull mechanism. In this embodiment, the push plate 9 occupies half of the whole area of the air inlet, and the push plate 9 can realize the opening or closing of the half area, and the opening size is controllable. The remaining area of the air intake can be closed by means of a conventional adjusting plate 6.
In order to increase the application range of the push plate 9, the fine adjustment plate 10 is mounted on the upper surface of the push plate 9, fine adjustment of the coverage area of the push plate 9 along the second direction is realized by changing the position of the fine adjustment plate 10, and the application range of the push plate assembly is increased.
In this embodiment, the fine adjustment plate 10 is also a rectangular plate, and the fine adjustment plate 10 is provided with a plurality of adjustment holes 12 at intervals along the first direction, wherein the adjustment holes 12 are bar-shaped holes extending along the second direction, and the adjustment of the relative positions of the fine adjustment plate 10 is achieved by matching the bar-shaped holes with the connecting pieces 13.
The number of the adjusting holes 12 can be two, three or other numbers, and the adjusting holes are arranged according to the actual installation requirement; the connection 13 is a bolt, a stop pin or other component.
Of course, in other embodiments, other connection manners may be used for the fine adjustment plate 10 and the push plate 9, for example, the fine adjustment plate 10 and the push plate 9 may form a telescopic structure, or the fine adjustment plate 10 and the push plate 9 may be connected by a sliding assembly, so long as the relative movement of the two can be achieved.
The push plate 9 may be implemented in other forms, for example, the push plate 9 employs a retractable plate that can be extended or retracted under the action of a push-pull mechanism.
The push-pull mechanism comprises a pull rod 11 and a connecting rod mechanism, one end of the pull rod 11 is connected to the top of the push plate 9, the other end of the pull rod is connected with the connecting rod mechanism, and the connecting rod mechanism drives the pull rod 11 to pull the push plate 9. As shown in fig. 5, the link mechanism includes a first link 14 and a second link 15, one end of the first link 14 is connected to the housing 5 through a mounting seat 16, wherein the mounting seat 16 is a hinge support, and the first link 14 is hinged to the mounting seat 16.
The second connecting rods 15 are arranged along the length direction of the pull rod 11, namely, the second connecting rods 15 are consistent with the second direction, two second connecting rods 15 are arranged for ensuring the stability of connection, and the two second connecting rods 15 are symmetrically arranged relative to the first connecting rod 14. One end of the second link 15 is connected to the tie rod 11, and the other end is hinged to the first link 14.
Wherein, the hinge point of the second connecting rod 15 and the first connecting rod 14 is a certain distance from the hinge point of the first connecting rod 14 and the mounting seat 16; the other end of the first connecting rod 14 is connected with a driving mechanism, and under the action of the driving mechanism, the push-pull action on the second connecting rod 15 and the pull rod 11 is realized through the first connecting rod 14. The synchronous control of a plurality of air inlets is facilitated by the arrangement of the connecting rod mechanism.
Alternatively, the pull rod 11 is directly connected to a telescopic power source, such as an air cylinder, a hydraulic cylinder, etc.; alternatively, the pull rod 11 is connected to a linear motion mechanism. That is, there are many ways in which the push plate 9 can be moved, and this can be selected according to the actual situation.
Similar to the first embodiment, the present embodiment can also be applied to a single-heat type shutter, or a double-heat type shutter as shown in fig. 6.
The push-pull mechanism of the embodiment is arranged on the outer side of the shell 5, and does not occupy the space around the top of the air inlet.
The exhaust shutter needs to open the air cover 21 at intervals to allow the air inlet to be in air, and then close the air cover 21 after a certain period of time. The automatic exhaust shutter adjusting mechanism of the embodiment adopts a push plate type structure, and air quantity entering the exhaust shutter is adjusted. When the air cover plate 21 is in an open state and the air inflow is required to be regulated, the movement of the push plate 9 can be realized only by controlling the action of the link mechanism, and the accurate regulation of the air inflow is realized.
In the embodiment, the push plate assembly is arranged at the air inlet, and the control of the size of the air inlet is realized through the movement of the push plate assembly along the horizontal plane; the push-pull mechanism connected with the push plate 9 is arranged on the side surface or the end surface of the shutter shell 5, does not occupy the top space of the shell 5, and has reasonable layout; the push plate 9 is automatically controlled by the push-pull mechanism, so that the purpose of accurately adjusting the air inflow is achieved.
Embodiment III:
the embodiment provides an automatic exhaust gas shutter air door adjusting mechanism, which comprises a flap plate assembly, and the air inflow of an air inlet is adjusted through the flap plate assembly, as shown in fig. 7 and 8.
Specifically, the turning plate assembly comprises a box body 23, a turning plate 18 and a rotating mechanism, wherein the box body 23 is arranged in the air inlet to form a sinking box body structure; that is, the periphery of the case 23 is enclosed to form a closed structure, a rectangular installation cavity is formed inside, and the bottom of the case 23 is communicated with the inside of the waste gas shutter.
The box 23 is used for installing the turning plate 18 and the rotating mechanism, and the depth of the box can be set according to the actual installation requirement.
The rotating mechanism comprises a rotating shaft 19 and a transmission mechanism connected with the rotating shaft 19, and the transmission mechanism can adopt a connecting rod mechanism; the transmission mechanism is connected with the driving mechanism to realize the rotation of the driving rotating shaft 19. The transmission mechanism is arranged to control the rotating shafts 19 of the air inlets through the driving mechanism so as to realize synchronous movement. The displacement of the link mechanism is controlled by acquiring data of the air quantity adjustment, and the position of the turning plate 18 is changed by the displacement of the link mechanism, so that the accurate and timely adjustment of the air quantity of all air inlets of the whole furnace is realized.
Of course, a transmission mechanism may not be provided, and the rotary shaft 19 may be directly connected to a rotary power source, such as a motor.
The turning plate 18 can be a rectangular plate to adapt to the shape of the box 23 and the air inlet; the flap 18 may also be of other shapes, such as a circular plate.
When the turning plate 18 is a rectangular plate, the turning plate 18 is arranged in the box 23 and is fixedly connected with the rotating shaft 19, as shown in fig. 10, the axial direction of the rotating shaft 19 can be kept consistent with the first direction; as shown in fig. 11, the axial direction of the rotation shaft 19 may also be kept coincident with the second direction.
Here, the first direction and the second direction are defined in the same manner as in the first and second embodiments.
The turning plate 18 can be kept horizontal or vertical under the action of the rotating shaft 19, and can be kept at any other angle, namely, the turning plate 18 can be changed at 0-90 degrees, so that automatic adjustment of different air inflow is realized, and the air inlet can be fully opened or fully closed through the turning plate 18.
When the turning plate 18 is a circular plate, as shown in fig. 9, a circular hole is formed in the box 23, the turning plate 18 is disposed in the circular hole, and the rotating shaft 19 extends out from the side surface of the box 23 to be connected with a transmission mechanism or a rotation power source.
As described in the background art, the transmission shaft 20, the air cover plate 21, the sector wheel, and the like are mounted on the top of the exhaust shutter, and the top space of the exhaust shutter is limited, so that the direction of the rotation shaft 19 of the present embodiment may be set along the first direction or the second direction, so that the rotation mechanism is disposed on the side surface or the end surface of the housing 5, and reasonable space utilization is achieved.
Preferably, the rotation shaft 19 is disposed along the second direction, so that the transmission mechanism is disposed at the side of the housing 5, avoiding the top space of the housing 5.
The exhaust shutter needs to be switched in state of the air cover 21 to allow the exhaust shutter to intake air for a set time. The automatic exhaust shutter adjusting mechanism of the embodiment adopts a flap structure, so that the air quantity entering the exhaust shutter is adjusted.
The working principle of the embodiment is as follows:
when the air cover plate 21 of the exhaust gas shutter is opened, that is, air needs to be taken in, in the process, the air intake amount needs to be adjusted according to the condition of the coke oven system; the opening degree of the air inlet is adjusted by rotating the turning plate 18, so that the air inflow is changed.
In the embodiment, the flap plate assembly is arranged at the air inlet, and the full opening or the full closing of the air inlet is realized through the rotary motion of the flap plate 18, or the flap plate 18 is kept at a certain angle; the rotating shaft 19 connected with the turning plate 18 passes through the side surface or the end surface of the shell 5, so that the top space of the shell 5 is not occupied; the flap type adjusting mechanism has simple structure and low cost. The flap assembly is equally applicable to both single-and double-heat shutters.
Embodiment four:
the embodiment provides an exhaust gas shutter, which comprises the automatic adjusting mechanism according to the first embodiment, as shown in fig. 2, wherein the hanger plate assembly is installed at the air inlet.
For a single-heat type shutter, only one air inlet is arranged, namely, a group of hanging plate components are arranged; for the recuperation shutter, have two air intakes, install two sets of hanger plate subassemblies.
The traction part 3 of the hanger plate component passes through the top of the shell 5 and is connected with the driving mechanism, and the two air inlets of the reheating type shutter can be synchronously controlled. The driving mechanism can be selected according to actual requirements.
As shown in fig. 2, the first mounting frame 1 of the hanger plate assembly is disposed in the air inlet, the surfaces of the first mounting frame 1 and the housing 5 are located in the same plane, the hanger plate 2 is rotatably connected to the bottom of the first mounting frame 1, the connection ends of the two are one side close to the sector wheel, and the traction part 3 extends from one side far away from the sector wheel.
Of course, the connecting end of the hanger plate 2 and the first mounting frame 1 may be located at a side away from the sector wheel, but since the traction portion 3 needs to avoid the sector wheel and the like, the length of the extension plate 4 needs to be extended.
Alternatively, the mounting direction of the hanger plate 2 is perpendicular to the axial direction of the transmission shaft 20, and the connection end of the hanger plate 2 and the first mounting frame 1 is close to the side of the air cover plate 21 due to the position limitation of the air cover plate 21.
The automatic adjusting mechanisms of the plurality of waste gas shutters can be synchronously adjusted, as shown in fig. 12, a supporting beam is arranged at the top of each waste gas shutter, and the supporting beam can be channel steel; a plurality of driving mechanisms are arranged on the supporting beam at intervals, each driving mechanism is connected with the traction part 3 corresponding to the air inlet, and lifting or lowering of the traction part 3 to the hanger plate 2 is realized through the driving mechanisms.
In the present embodiment, the driving mechanism may be a winding mechanism or a lifting mechanism as long as the up-and-down movement of the traction portion 3 can be achieved.
The plurality of exhaust gas shutters are uniformly controlled through the driving mechanism to realize synchronous adjustment, so that the air inflow of each exhaust gas shutter is quickly adjusted; the air inlets of the exhaust gas shutter can be uniformly, accurately and automatically adjusted; in the opened state of the air cover plate 21, the accurate adjustment of the air inflow of the air inlet is realized by arranging a corresponding adjusting mechanism; the hanging plate type, the pushing plate type and the turning plate type can be suitable for poor field environments, normal use is not affected even if dirt falls down, the service life of the waste gas shutter is prolonged, and maintenance cost is reduced; the switch is suitable for new installation of a new coke oven or upgrading and reconstruction of the original switch in production.
Because the gas for heating the coke oven has direct influence on the coke quality, the high-directional heating condition, the thermodynamic efficiency of the coke oven, the consumption of ton coke gas, the coke quality, the coke yield, the total amount of waste gas produced by the coke oven, the content of harmful gases in the waste gas and other conditions in the combustion process, the coke oven system of the embodiment realizes the automatic and synchronous adjustment of the sizes of all the air inlets by installing an automatic adjusting mechanism at the air inlet of the waste gas shutter, and solves the problems of large workload and low safety of the measurement and adjustment by manpower one by one.
The embodiment solves the problem that the heating system of the coke oven can not be adjusted in time under the condition of frequent change in the prior art, and can realize fine and timely automatic adjustment; and the synchronous adjustment can realize the accurate control of the air inflow of the coke oven system.
Fifth embodiment:
the present embodiment provides an exhaust gas shutter, which may be a single-heat shutter or a double-heat shutter, including the automatic adjustment mechanism described in the second embodiment.
As shown in fig. 6, the push plate assembly is installed in the air inlet, and the push-pull mechanism of the push plate assembly is arranged on the side surface (based on the second direction) of the shell 5; alternatively, the push-pull mechanism is provided on an end surface (with reference to the first direction) of the housing 5. The push-pull mechanism is connected with the driving mechanism to realize the displacement adjustment of the push plate 9.
In this mode, in the maximum extension state of the pull rod 11 (moving toward the side where the air cover plate 21 is located), the push plate 9 closes the air inlet partial region, and the part not covered by the push plate 9 is blocked by the adjusting plate 6, so that the air inlet is fully closed.
In the maximum retracted state of the pull rod 11 (moving away from the side where the air cover 21 is located), the above-mentioned area is open.
The adjusting mechanism of the present embodiment is suitable for the case where the requirement for the adjustment amplitude of the intake air amount is relatively small.
Example six:
the embodiment provides an exhaust gas shutter, which may be a single thermal shutter or a double thermal shutter, including the automatic adjustment mechanism described in the third embodiment, as shown in fig. 7, a circular flap structure or a rectangular flap structure is installed in the air inlet, and the rectangular flap is suitable for the condition that the requirement on the air inflow adjustment range is larger, and the circular flap is suitable for the condition that the requirement on the air inflow adjustment range is smaller.
The rotation shaft 19 of the flap 18 extends from the side or end face of the housing 5 to connect with the drive mechanism.
According to the embodiment, the flap plate assembly is arranged at the original air inlet of the waste gas shutter, so that the opening degree of the air inlet is adjusted, and the air inflow is changed. The scheme has simple structure and can reduce cost.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (4)
1. The automatic adjusting mechanism for the air door of the waste gas shutter is characterized by comprising a hanging plate assembly, wherein the hanging plate assembly comprises a mounting frame and a hanging plate, one end of the hanging plate is rotationally connected with the first mounting frame, the other end of the hanging plate is connected with a traction part through an extending plate, and the traction part is used for pulling the hanging plate to change the air inflow of an air inlet; the extending plate and the hanging plate form a step to adapt to the thickness of the air inlet, so that the end part of the hanging plate can completely enter the rectangular opening of the first mounting frame; the bottom surface of the hanging plate is close to one side of the extending plate and is provided with a balancing weight, and the hanging plate can fall under the action of gravity in a traction part release state so as to realize the rapid adjustment of the size of the air inlet; at least one side of the first mounting frame and the air inlet form an open area, and the open area is used for placing an adjusting plate;
the traction part passes through the top of the shell and is connected with the driving mechanism.
2. The automatic exhaust shutter damper adjustment mechanism of claim 1, wherein the first mounting frame is adapted to the air inlet.
3. The automatic exhaust shutter damper adjustment mechanism according to claim 1, wherein the hanger plate is connected to the first mounting frame by a hinge.
4. An exhaust shutter comprising an exhaust shutter damper automatic adjustment mechanism according to any one of claims 1 to 3.
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| CN202210467891.6A CN114940912B (en) | 2022-04-29 | 2022-04-29 | Automatic exhaust gas shutter air door adjusting mechanism and exhaust gas shutter |
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| CN202210467891.6A CN114940912B (en) | 2022-04-29 | 2022-04-29 | Automatic exhaust gas shutter air door adjusting mechanism and exhaust gas shutter |
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