CN215337783U - Floor type large flue system and sintering machine main workshop - Google Patents

Abstract

The utility model discloses a floor type large flue and a sintering machine mainframe room. The floor type large flue comprises a large flue and a dust transferring and collecting mechanism arranged on the dust output side of the bottom of the large flue; wherein, the bottom of the large flue is provided with a blanking hole for dust falling; dust is transported and is collected mechanism and be used for transporting and collecting the blanking hole exhaust dust of big flue, and dust is transported and is collected the mechanism and include sealed casing and the dust conveyer of laying along the extending direction of big flue, is equipped with sealed passageway in the sealed casing, and in the sealed passageway was located to the dust conveyer, the at least one end of sealed casing was equipped with the case of keeping in that is used for collecting the dust, transports the blanking hole exhaust dust of big flue to the incasement of keeping in through the dust conveyer and collects. The large flue floor type sintering machine system reduces the installation position of the large flue, reduces the elevation of a sintering machine plant and reduces the engineering cost of the plant.

Description

Floor type large flue system and sintering machine main workshop

Technical Field

The utility model relates to the technical field of metallurgical sintering equipment, in particular to a floor type large flue system for a sintering machine and a floor type sintering machine main workshop with a large flue.

Background

The material sintering process in the sintering machine is a process that after the surface layer of the mixture loaded on the sintering trolley is ignited, the smoke system consisting of the lower air box, the flue and the main exhaust fan utilizes the air draft kinetic energy to generate pressure difference between the upper part and the lower part of the mixture, so that the burning zone of the sintering mixture is promoted to burn from top to bottom. During sintering, external air penetrates through the material layer from the upper part of the sintering machine trolley to form sintering flue gas containing a large amount of dust impurities, and the gas is finally discharged to a desulfurization and denitrification system through an air box and a flue under the action of a main exhaust fan.

The large flue is an important component of a sintering machine system and is communicated with an air box of the sintering machine and a main exhaust fan. As shown in fig. 1 and 2, in a conventional main building of a sintering machine, a large flue is generally installed at a position more than 7 m above the ground in order to leave an installation position for a double-layer ash discharge valve and a corresponding leakage groove below the large flue.

The diameter of the large flue is about 5 meters generally, the elevation of a main plant and corresponding connecting facility equipment is increased due to the overhigh installation position of the large flue, the height of the plant is high, the large flue and the corresponding equipment are difficult to install, and the construction cost is high; in order to facilitate ash discharge of a large flue, a plurality of ash receiving chutes are arranged at the lower part of the existing large flue, double-layer ash discharge valves are arranged below the ash receiving chutes, dust is discharged by the ash receiving chutes and the double-layer ash discharge valves, fault points and air leakage points of a sintering machine are more, and the stability and the sealing performance of the sintering machine are poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a large flue floor type sintering machine system, which aims to solve the technical problems of high factory building height, difficult installation of a large flue and corresponding equipment and high engineering cost caused by overhigh installation position of the existing large flue and increased elevation of a main factory building and corresponding connecting facility equipment.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a floor type large flue system for a sintering machine comprises a large flue which extends along the length direction of a sintering machine body and a dust transferring and collecting mechanism which is arranged at the dust output side of the bottom of the large flue; wherein, the large flue is directly arranged on the ground in a floor mode; blanking holes for dust to fall are formed in the bottom of the large flue, and the blanking holes are distributed at intervals along the extending direction of the large flue; the dust transferring and collecting mechanism is arranged in a trench dug in the ground and used for transferring and collecting dust discharged from a blanking hole of the large flue; dust is transported and is collected mechanism includes the edge sealed casing and the dust conveyer that the extending direction of big flue laid, sealed casing with the outer wall sealing connection of the bottom of big flue forms sealed passageway, the blanking hole with the sealed intercommunication of sealed passageway, the dust conveyer is located in the sealed casing, at least one end of sealed casing is equipped with the temporary storage case that is used for collecting the dust, the output of dust conveyer stretch into to the holding intracavity of temporary storage case, through the dust conveyer will the blanking hole exhaust dust of big flue is transported extremely the temporary storage incasement is collected.

Furthermore, the large flue comprises a flue pipe channel and mounting brackets which are arranged on two sides of the flue pipe channel and used for supporting the flue pipe channel from the ground, the blanking hole is formed in the bottom of the flue pipe channel, and the sealing shell is connected with the outer wall surface of the bottom of the flue pipe channel in a sealing mode.

Furthermore, the cross section of the sealing shell is in a rectangular shape with an opening at the upper part, and the sealing shell is connected with the outer wall surface of the bottom of the smoke pipe channel in a sealing way through a flange so as to form the sealing channel; the temporary storage box is communicated with the sealing channel in a sealing mode.

Furthermore, the two ends of the sealed shell are respectively provided with the temporary storage boxes, the number of the dust conveyors is multiple, the dust conveyors are arranged at intervals along the width direction of the sealed shell,

the dust conveyor moves along a first conveying track to convey the dust discharged from the blanking hole of the smoke tube channel into the temporary storage box at one end of the sealing shell for collection, and the dust conveyor moves along a second conveying track to convey the dust discharged from the blanking hole of the smoke tube channel into the temporary storage box at the other end of the sealing shell for collection.

Further, the sealing shell is arranged in a trench which is pre-dug on the lower side of the smoke pipe channel, the trench extends downwards and is dug to form a vertical extending groove corresponding to the position of the temporary storage box, and the temporary storage box is arranged in the vertical extending groove.

Furthermore, the temporary storage box comprises a blanking channel which is vertically arranged, the top input end of the blanking channel is communicated with the output end of the dust conveyor, a transmission pipeline of the blanking channel vertically extends downwards, the bottom of the transmission pipeline is provided with an output port, and the dust transferring and collecting mechanism further comprises a belt conveyor which is arranged at the output port and used for conveying dust discharged by the blanking channel; and the top input end of the blanking channel is provided with a material guide plate for guiding the dust output by the dust conveyor into the blanking channel, so that the dust output by the dust conveyor slides into the temporary storage box by means of the inertia force and gravity of the dust conveyor.

Furthermore, a first valve and a second valve which are arranged at intervals along the vertical direction are arranged at the output end of the bottom of the blanking channel, and a discharging buffer chamber is formed by the first valve, the second valve and the transmission pipeline in a surrounding manner.

Further, the first valve and the second valve are both electric control valves, the dust conveyor further comprises a controller and a material level detector, the material level detector is used for detecting the amount of dust stored in the temporary storage tank and sending a material level detection signal to the controller, the controller is used for receiving the material level detection signal and sending an opening or closing signal to the first valve, and the controller is also used for sending an opening or closing signal to the second valve,

the first valve is opened after responding to the opening signal sent by the controller to enable dust to fall into the buffer chamber, the first valve is closed after responding to the closing signal of the controller to enable the bottom output end of the temporary storage box to be isolated from the buffer chamber, and the second valve is opened after responding to the opening signal sent by the controller to enable dust in the buffer chamber to be removed.

The utility model also provides a sintering machine main plant which comprises a sintering machine body erected above the ground and also comprises the floor type large flue system; the height between the sintering machine body and the ground is matched with the diameter of the large flue.

Furthermore, the circular cooler trolley comprises a sintering machine ore bucket arranged at the tail part of the sintering machine, a circular cooler feeding chute arranged at the output side of the sintering machine ore bucket and a circular cooler trolley arranged at the output side of the circular cooler feeding chute, wherein the circular cooler trolley (60) and the large flue are positioned on the same horizontal plane.

The utility model has the following beneficial effects:

the utility model discloses a floor type large flue system and a sintering machine main factory building, which comprise a sintering machine body arranged off the ground and a large flue component arranged on the ground, wherein the large flue component comprises a large flue and a dust transferring and collecting mechanism, a sintering trolley is guided to move from the head to the tail of a sintering machine through the sintering machine body, negative pressure is generated through the large flue and is led out of flue gas, so that materials on the sintering trolley are sintered; the dust transfer mechanism comprises a sealing shell and a dust conveyor, a sealing channel is arranged in the sealing shell, the sealing shell is sealed with the bottom of the large flue, at least one end of the sealing shell is provided with a temporary storage box for collecting dust, and the temporary storage box is connected with the sealing shell in a sealing way and communicated with the sealing channel in a sealing way, so that a good working environment is kept; the dust conveyor is arranged in the sealed channel, and dust falling from the blanking hole is transferred into the temporary storage box along the extending direction of the large flue by the aid of the work of the dust conveyor, so that the design of an existing double-layer ash discharge valve and a corresponding chute is cancelled, the vertical height value occupied by the sealed shell is small, the mounting position of the large flue is reduced, the large flue can be stably mounted on the ground, the elevation of connecting facility equipment matched with the large flue is reduced, the elevation of a sintering machine workshop is reduced, the engineering cost of the workshop is reduced, the stability of the sintering machine workshop is improved, the sintering machine workshop is prevented from being easily injured in areas with high seismic intensity, and the convenience for mounting and overhauling the large flue is improved; meanwhile, the sealing shell is arranged along the extending direction of the large flue, the sealing shell is connected with the outer wall surface of the bottom of the large flue in a sealing mode, the sealing property of the sealing shell connected with the large flue is good, the air leakage rate of the large flue is reduced, the stability and the working efficiency of the sintering machine are improved, and the production cost is reduced.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a conventional main factory building of a sintering machine;

FIG. 2 is a schematic cross-sectional view of a conventional main building of a sintering machine;

FIG. 3 is a schematic structural diagram of a floor type large flue sintering machine main factory building of the preferred embodiment of the utility model;

FIG. 4 is a schematic sectional view of a main building of a floor type large flue sintering machine according to a preferred embodiment of the utility model;

FIG. 5 is a schematic view of the dust transport and collection mechanism of the preferred embodiment of the present invention in cooperation with a large flue;

FIG. 6 is a schematic cross-sectional structural view of the dust transport and collection mechanism of FIG. 5 in cooperation with a large flue;

FIG. 7 is a view taken in the direction A of FIG. 6;

fig. 8 is an enlarged view at B in fig. 6;

fig. 9 is a schematic view of the structure of C-C in fig. 8.

Illustration of the drawings:

10. a trolley rail; 20. a large flue; 21. a smoke tube passage; 211. a blanking hole; 22. mounting a bracket; 30. a dust transferring and collecting mechanism; 31. sealing the housing; 32. a dust conveyor; 33. a temporary storage box; 331. a material guide plate; 332. a first valve; 333. a second valve; 334. a level detector; 34. a belt conveyor; 40. an ore bucket of a sintering machine; 50. a feeding chute of the circular cooler; 60. and (4) a circular cooler trolley.

Detailed Description

The embodiments of the utility model will be described in detail below with reference to the accompanying drawings, but the utility model can be embodied in many different forms, which are defined and covered by the following description.

Fig. 1 is a schematic structural view of a conventional sintering machine system; FIG. 2 is a schematic cross-sectional view of a sintering machine system of the prior art; FIG. 3 is a schematic structural diagram of a large flue floor sintering machine system in accordance with a preferred embodiment of the present invention; FIG. 4 is a schematic cross-sectional structural view of a large flue floor sintering machine system of the preferred embodiment of the present invention; FIG. 5 is a schematic view of the dust transport and collection mechanism of the preferred embodiment of the present invention in cooperation with a large flue; FIG. 6 is a schematic cross-sectional structural view of the dust transport and collection mechanism of FIG. 5 in cooperation with a large flue; FIG. 7 is a view taken in the direction A of FIG. 6; fig. 8 is an enlarged view at B in fig. 6; fig. 9 is a schematic view of the structure of C-C in fig. 8.

As shown in fig. 3, 4, 5, 6 and 7, the floor-type large flue sintering machine main building of the present embodiment includes a sintering machine body 10, and further includes a large flue assembly of a floor-type with a trolley rail provided on the ground along the sintering machine body 10.

The large flue assembly comprises a large flue 20 directly arranged on the ground and a dust transferring and collecting mechanism 30 arranged on the dust output side of the large flue 20; the bottom of the large flue 20 is provided with blanking holes 211 for dust to fall, and the blanking holes 211 are arranged at intervals along the extending direction of the large flue 20; the dust transfer and collection mechanism 30 is arranged in a trench dug in advance on the bottom surface and used for transferring and collecting dust discharged from the blanking hole 211 of the large flue 20, the dust transfer and collection mechanism 30 comprises a sealing shell 31 and a dust conveyor 32 which are arranged along the extending direction of the large flue 20, the sealing shell 31 is in sealing connection with the outer wall surface of the bottom of the large flue 20 to form a sealing channel, the dust conveyor 32 is arranged in a containing cavity formed by enclosing the sealing shell 31 and the large flue 20, at least one end of the sealing shell 31 is provided with a temporary storage box 33 used for collecting dust, the temporary storage box 33 can be in sealing connection with the sealing shell 31, the output end of the dust conveyor 32 extends into the containing cavity of the temporary storage box 33, and the dust discharged from the blanking hole 211 of the large flue 20 is transferred to the temporary storage box 33 through the dust conveyor 32 to be collected.

The utility model relates to a floor type large flue and a sintering machine main factory building system, which comprises a sintering machine body arranged off the ground and a large flue component arranged on the ground, wherein the large flue component comprises a large flue 20 and a dust transferring and collecting mechanism 30, a sintering trolley is guided to move from the head to the tail of a sintering machine through a sintering machine body 10, negative pressure is generated in the large flue 20 through an exhaust fan, smoke is led out, and materials on the sintering trolley are sintered; the dust transfer mechanism comprises a sealing shell 31 and a dust conveyor 32, a sealing channel is arranged in the sealing shell 31, the sealing shell 31 is sealed with the bottom of the large flue 20, at least one end of the sealing shell 31 is provided with a temporary storage box 33 for collecting dust, and the temporary storage box 33 is hermetically connected with the sealing shell 31 and communicated with the sealing channel in a sealing and communicating manner, so that a good working environment is kept; the dust conveyor 32 is arranged in the sealed channel, and the dust falling from the blanking hole 211 is transferred to the temporary storage box 33 along the extending direction of the large flue 20 by the work of the dust conveyor 32, the design of the existing double-layer dust discharging valve and a corresponding chute is cancelled, the vertical height value occupied by the sealed shell 31 is small, the installation position of the large flue 20 is reduced, the large flue 20 can be stably installed on the ground, the elevation of connecting facility equipment matched with the large flue 20 is reduced, the elevation of a sintering machine workshop is reduced, the engineering cost of the workshop is reduced, the stability of the sintering machine workshop is favorably improved, the sintering machine workshop is prevented from being easily injured in a region with high intensity, and the convenience for installing and overhauling the large flue 20 is improved; meanwhile, the sealing shell 31 is arranged along the extending direction of the large flue 20, the sealing shell 31 is connected with the outer wall surface of the bottom of the large flue 20 in a sealing mode, the sealing shell 31 is good in sealing performance with the large flue 20, the air leakage rate of the large flue 20 is reduced, the stability and the working efficiency of the sintering machine are improved, and the production cost is reduced.

Optionally, in the present invention, the large flue floor type sintering machine system includes a sintering pallet for loading materials and driving the materials to move and sinter, a pallet track for guiding the sintering pallet to move, a wind box disposed at a lower side of the pallet track for collecting flue gas after combustion, and a large flue assembly disposed at a lower side of the wind box for guiding the flue gas to exhaust, the large flue assembly and the wind box are communicated with each other, and the large flue assembly extends along a direction from a head portion of the pallet track to a tail portion of the pallet track.

Optionally, the dust conveyor 32 includes a chain scraper conveyor, the chain scraper conveyor includes a first driving component and a first driven component which are oppositely disposed on two sides of the sealed housing 31, the conveying plate is fixedly disposed on the driving belt, the first driving belt is in transmission connection with the first driven component respectively, the first driving component drives the first driving belt to drive the conveying plate to move along the conveying track, and then the dust is collected and conveyed into the temporary storage box 33.

Further, the large flue 20 includes a flue pipe passage 21 and mounting brackets 22 disposed at both sides of the sealing housing 31 for supporting the flue pipe passage 21 from the ground, a blanking hole 211 is disposed at the bottom of the flue pipe passage 21, and the sealing housing 31 is connected with the outer wall surface of the bottom of the flue pipe passage 21 in a sealing manner. The smoke tube channel is supported on the ground through the mounting support, so that the smoke tube channel is convenient to mount and maintain, the bottom of the smoke tube channel is arranged through the sealing shell, and the sealing performance of the smoke tube channel is improved. Optionally, the two sides of the smoke tube passage 21 are both provided with mounting brackets 22, and the mounting brackets 22 at one side of the smoke tube passage 21 are arranged at intervals along the extending direction of the smoke tube passage 21.

Further, the cross section of the sealing housing 31 is shaped as a rectangle with an open upper portion, and the sealing housing 31 is connected with the outer wall surface of the bottom of the smoke tube passage 21 by a flange seal. Optionally, a flange mounting edge is arranged at the bottom of the smoke tube passage 21, the sealing housing 31 is connected with the flange mounting edge in a bolt fit manner, and the smoke tube passage 21 is connected with the sealing housing 31 in a flange sealing manner, so that the sealing housing 31 is convenient to detach and maintain. Alternatively, the cross section of the sealing housing 31 may also be circular, semicircular or polygonal, and the sealing channel is a corresponding circular channel, semicircular channel or polytropic channel. In the present invention, the sealing housing 31 is formed in a rectangular shape with an upper opening so as to be more stably supported on the ground and sealingly connected to the smoke tube passage 21. Optionally, the sealing housing 31 may be in surface contact with the smoke tube passage 21, and the blanking hole 211 is disposed at the top of the sealing housing 31, so that the blanking hole 211 is communicated with the sealing passage.

Further, the dust conveyor 32 employs a drag conveyor and/or a scraper conveyor. Optionally, the dust conveyor 32 is a chain scraper conveyor, the chain scraper conveyor includes a first driving component and a first driven component which are oppositely disposed on two sides of the sealed housing 31, the conveying plate is fixedly disposed on the driving belt, the first driving component and the first driven component are respectively in transmission connection with the first driving belt, the first driving component drives the first driving belt to drive the conveying plate to move along a conveying track, and then the dust is collected and conveyed into the temporary storage box 33; optionally, the dust conveyor 32 includes a buried scraper conveyor, the buried scraper conveyor includes a second driving belt, a buried scraper, and a second driving component and a second driven component which are oppositely disposed on two sides of the sealed housing 31, the buried scraper is fixedly disposed on the driving belt, the second driving belt is respectively in transmission connection with the second driving component and the second driven component, the second driving component drives the second driving belt to drive the buried scraper to move along a conveying track, and then the dust on the bottom plate of the sealed housing 31 is scraped and output to the temporary storage box 33.

Alternatively, the smoke tube passage 21 is made of steel plates by welding, or the smoke tube passage 21 is formed by pouring reinforced concrete.

More preferably, referring to fig. 8 and 9, the dust conveyor 32 is a scraper conveyor, and by setting the cross section of the sealing housing 31 to be rectangular with an open upper portion, it is convenient to arrange a scraper conveyor inside the sealing housing 31 for exhausting and collecting dust to replace a double-layer dust unloading valve and a chute, so as to reduce the installation height of the smoke tube channel 21, and at the same time, the scraper of the scraper conveyor cooperates with the bottom plate of the sealing housing 31 to sweep and discharge the dust falling from the smoke tube channel onto the bottom plate of the sealing housing 31 into the temporary storage box 33.

Furthermore, the two ends of the sealed housing 31 are respectively provided with a temporary storage box 33, the number of the dust conveyors 32 is multiple, the multiple dust conveyors 32 are arranged at intervals along the width direction of the sealed housing 31, at least one dust conveyor 32 moves along a first conveying track to transfer the dust discharged from the blanking hole 211 of the smoke pipe channel 21 into the temporary storage box 33 at one end of the sealed housing 31 for collection, and at least one dust conveyor 32 moves along a second conveying track to transfer the dust discharged from the blanking hole 211 of the smoke pipe channel 21 into the temporary storage box 33 at the other end of the sealed housing 31 for collection. It is understood that the scraper blade includes a first layer of scraper blade above the bottom plate of the sealed housing 31 and a second layer of scraper blade above the first layer of scraper blade, and the dust conveyer 32 moves along the first conveying track, i.e. the first layer of scraper blade moves along the head to the tail of the smoke pipe channel 21, and scrapes and conveys the dust into the temporary storage box 33 at the tail of the sealed housing 31; the dust conveyor 32 can move along the second conveying track, that is, the first layer of hanging plates can move along the tail part of the smoke tube channel 21 to the head part, so as to scrape and convey the dust into the temporary storage box 33 at the head part of the smoke tube channel 21.

Further, the temporary storage box 33 includes a blanking channel vertically arranged, a top input end of the blanking channel is communicated with an output end of the dust conveyor 32, a transmission pipeline at the bottom of the blanking channel extends vertically downwards, and a guide plate 331 used for guiding the dust output by the dust conveyor 32 into the blanking channel is arranged at the top input end of the blanking channel, so that the dust output by the dust conveyor 32 slides into the temporary storage box 33 by means of self inertia force and gravity. It can be understood that, in this embodiment, the output end of the material guiding plate 331 is disposed obliquely downward toward the material dropping channel, so that the dust conveyor 32 can automatically discharge dust into the material dropping channel, the structure is simple, automatic material collection is ensured, the flow of disturbance air flow in the sealed shell 31 is reduced, turbulence is avoided, and the sealing performance of the sealed shell 31 is ensured.

Further, in order to improve the convenience of maintaining the smoke tube channel after reducing the installation height of the smoke tube channel, the sealing shell 31 is arranged in a trench dug in advance on the lower side of the smoke tube channel 21, the trench extends downwards and is dug with a vertical extending groove corresponding to the blanking channel, the transmission pipeline of the blanking channel extends into the vertical extending groove, the bottom of the transmission pipeline is provided with an output port, and the dust transferring and collecting mechanism 30 further comprises a belt conveyor 34 which is arranged at the output port of the transmission pipeline and used for conveying the dust discharged from the blanking channel. Optionally, the depth of the trench is not less than 1.8 meters.

Furthermore, the output end of the bottom of the blanking channel is provided with a first valve 332 and a second valve 333 which are arranged at intervals along the vertical direction, and the first valve 332, the second valve 333 and the transmission pipeline enclose to form a discharging buffer chamber.

Further, referring to fig. 5 again, the first valve 332 and the second valve 333 are both electrically controlled valves, the dust conveyer 32 further includes a controller and a level detector 334, the level detector 334 is configured to detect the amount of dust stored in the temporary storage tank 33 and send a level detection signal to the controller, the controller is configured to receive the level detection signal and send an opening or closing signal to the first valve 332, the controller is further configured to send an opening or closing signal to the second valve 333, the first valve 332 is opened to drop the dust into the buffer chamber after responding to the opening signal sent by the controller, the first valve 332 is closed to isolate the bottom output end of the temporary storage tank 33 from the buffer chamber after responding to the closing signal of the controller, and the second valve 333 is opened to remove the dust in the buffer chamber after responding to the opening signal sent by the controller. Alternatively, the level detector 334 may be an infrared detector, an ultrasonic level meter, a microwave level meter, or a gravimetric level meter. Preferably, to avoid interference, a level detector is provided at the top of the blanking channel.

In a specific processing process, when dust particles are conveyed to the head of the sealed shell 31 by the dust conveyor 32, namely the output end of the dust conveyor 32, the dust particles fall into the temporary storage box 33 at the output end of the dust conveyor 32, the temporary storage box 33 can store the dust particles conveyed for a certain time, a material level detection device is arranged at the top of the blanking channel, when the material level reaches a set value, the material level detection device sends a signal, the material in the blanking channel is discharged onto the belt conveyor 34 to be carried away, and then the first valve 332 and the second valve 333 are closed. According to the utility model, a double-valve configuration is adopted, the first valve 332 is opened firstly, dust particles fall into the buffer cavity between the two valves, then the first valve 332 is closed, the second valve 333 is opened, and the dust particles are discharged, so that the air leakage of the buried scraper conveyor is effectively avoided, and the sealing property of the smoke pipe channel 21 is improved.

Further, the large flue floor type sintering machine system further comprises a sintering machine ore bucket 40 arranged at the tail part of the trolley track, a circular cooler feeding chute 50 arranged at the output side of the sintering machine ore bucket 40 and a circular cooler trolley 60 arranged at the output side of the circular cooler feeding chute 50, wherein the circular cooler trolley 60 and the large flue 20 are positioned on the same horizontal plane.

The beneficial effects of the utility model are as follows, please refer to fig. 1 and fig. 2 again, the existing main factory building design: take a 500 square meter sintering machine as an example: the diameter of a large flue is 5.2 millimeters, the bottom elevation is +7.0 meters, the center elevation is about +10.0 meters, a chute and a double-layer ash discharge valve are arranged at the lower part of the large flue, an ore discharge hopper of a sintering machine is arranged at the tail part of the sintering machine, an annular cooler feeding chute is arranged below the sintering machine, sintering ore enters the surface of an annular cooler trolley through the ore discharge hopper and the feeding chute, and the annular cooler trolley track is overhead at the elevation of +3.8 meters in cooperation with the height of a main workshop. Referring to fig. 3 and 4, the smoke tube channel 21 is arranged at an elevation of plus or minus 0.0 meter, namely, the smoke tube channel 21 is supported on the ground, the center elevation is about plus or minus 3.0 meters, a chute and a double-layer ash discharge valve at the lower part are eliminated, the dust transfer and collection mechanism 30 is replaced, and the heights of a sintering ore discharge hopper and a circular cooler feeding chute are adjusted; take a 500 square meter sintering machine as an example: the height of the large flue is reduced by 7 meters; the height of the ore discharging hopper of the sintering machine is compressed by 1.2 meters, the height of the feeding chute is compressed by 2 meters, the track of the circular cooler and the trolley are also arranged on a plus or minus 0.0 plane and compressed by 3.8 meters, the total length is compressed by 7 meters, and the height is just matched with the height of 7 meters reduced by a large flue. The structure of the main plant is reduced, the civil engineering cost of the whole plant is reduced, and the main plant is more advantageous in areas with high seismic intensity; the smoke pipe channel 21 is arranged on the ground, so that the installation is more convenient; the buried scraper conveyor replaces a chute and a double-layer ash discharge valve, so that the failure of the action of the double-layer ash discharge valve caused by the material is avoided, the faults are reduced, and the air leakage rate is reduced; the size of the ore discharging hopper of the sintering machine and the size of the feeding chute of the ring cooler are adjusted, and the elevation of the rail of the ring cooler is adjusted, so that the rail of the ring cooler is also arranged on a +/-0.0 plane, the weight of the steel structure of the ring cooler is reduced, the cost is reduced, and the maintenance and the replacement of a trolley of the ring cooler are more convenient; the engineering quantity of earthwork construction and steel structure manufacturing is reduced, the construction progress of the whole sintering machine is accelerated, and the production benefit is created by bringing convenience to early production; the embedded scraper conveyor intermittently acts according to the production condition, so that the energy is saved; the discharge valve at the head of the buried scraper conveyor is opened according to the material level signal, and the whole buried scraper conveyor is in a closed state when the buried scraper conveyor is not opened, so that the large flue air leakage is effectively avoided, and the air leakage rate of the whole sintering machine system is reduced.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A floor type large flue system for a sintering machine is characterized by comprising a large flue (20) extending along the length direction of a sintering machine body (10) and a dust transferring and collecting mechanism (30) arranged at the dust output side of the bottom of the large flue (20); wherein, the large flue is directly arranged on the ground in a floor mode;

blanking holes (211) for dust to fall are formed in the bottom of the large flue (20), and the blanking holes (211) are distributed at intervals along the extending direction of the large flue (20);

the dust transferring and collecting mechanism (30) is arranged in a trench dug in the ground and used for transferring and collecting dust discharged from the blanking hole (211) of the large flue (20);

dust is transported and is collected mechanism (30) and includes the edge sealed casing (31) and dust conveyer (32) that the extending direction of big flue (20) laid, sealed casing (31) with the outer wall sealing connection of the bottom of big flue (20) forms sealed passageway, blanking hole (211) with the sealed intercommunication of sealed passageway, dust conveyer (32) are located in sealed casing (31), at least one end of sealed casing (31) is equipped with temporary storage box (33) that are used for collecting the dust, the output of dust conveyer (32) stretches into to the holding intracavity of temporary storage box (33), through dust conveyer (32) will blanking hole (211) exhaust dust of big flue (20) is transported to collect in temporary storage box (33).

2. Floor-standing large flue system for sintering machines according to claim 1,

the large flue (20) comprises a smoke tube channel (21) and mounting brackets (22) which are arranged at two sides of the smoke tube channel (21) and used for supporting the smoke tube channel (21) from the ground,

the bottom of the smoke tube passage (21) is provided with the blanking hole (211), and the sealing shell (31) is connected with the outer wall surface of the bottom of the smoke tube passage (21) in a sealing mode.

3. Floor-standing large flue system for sintering machines according to claim 2,

the cross section of the sealing shell (31) is in a rectangular shape with an opening at the upper part, and the sealing shell (31) is connected with the outer wall surface of the bottom of the smoke tube channel (21) in a sealing way through a flange so as to form the sealing channel;

the temporary storage box (33) is communicated with the sealing channel in a sealing mode.

4. Floor-standing large flue system for sintering machines according to claim 2 or 3,

the two ends of the sealed shell (31) are respectively provided with the temporary storage boxes (33), the number of the dust conveyors (32) is multiple, the dust conveyors (32) are arranged at intervals along the width direction of the sealed shell (31),

at least one dust conveyor (32) moves along a first conveying track to convey the dust discharged from the blanking hole (211) of the smoke pipe channel (21) to the temporary storage box (33) at one end of the sealed shell (31) for collection,

at least one dust conveyor (32) moves along a second conveying track to convey the dust discharged from the blanking hole (211) of the smoke pipe channel (21) to the temporary storage box (33) at the other end of the sealed shell (31) for collection.

5. Floor-standing large flue system for sintering machines according to claim 4,

the sealing shell (31) is arranged in a trench which is pre-dug on the lower side of the smoke pipe channel (21), the trench extends downwards and is dug to form a vertical extending groove corresponding to the position of the temporary storage box (33), and the temporary storage box (33) is arranged in the vertical extending groove.

6. Floor-standing large flue system for sintering machines according to claim 5,

the temporary storage box (33) comprises a blanking channel which is vertically arranged, the top input end of the blanking channel is communicated with the output end of the dust conveyor (32), a transmission pipeline of the blanking channel vertically extends downwards, the bottom of the transmission pipeline is provided with an output port, and the dust transferring and collecting mechanism (30) further comprises a belt conveyor (34) which is arranged at the output port and used for conveying dust discharged from the blanking channel;

the top input end of the blanking channel is provided with a material guide plate (331) used for guiding the dust output by the dust conveyor (32) into the blanking channel, so that the dust output by the dust conveyor (32) slides into the temporary storage box (33) by means of the inertia force and gravity of the dust.

7. Floor-standing large flue system for sintering machines according to claim 6,

and the output end of the bottom of the blanking channel is provided with a first valve (332) and a second valve (333) which are vertically arranged at intervals, and the first valve (332), the second valve (333) and the transmission pipeline are enclosed to form a discharging buffer chamber.

8. Floor-standing large flue system for sintering machines according to claim 7,

the first valve (332) and the second valve (333) are both electrically controlled valves,

the dust conveyor (32) further comprises a controller and a material level detector (334), wherein the material level detector (334) is used for detecting the amount of dust stored in the temporary storage box (33) and sending a material level detection signal to the controller, the controller is used for receiving the material level detection signal and sending an opening or closing signal to the first valve (332), and the controller is further used for sending an opening or closing signal to the second valve (333),

the first valve (332) is opened to enable dust to fall into the buffer chamber after responding to the opening signal sent by the controller, the first valve (332) is closed to enable the bottom output end of the temporary storage box (33) to be isolated from the buffer chamber after responding to the closing signal sent by the controller, and the second valve (333) is opened to enable dust in the buffer chamber to be removed after responding to the opening signal sent by the controller.

9. Sintering machine main building, comprising a sintering machine body (10) erected above the ground, characterized by further comprising a large floor-standing flue system according to any one of claims 1-8; wherein the height between the sintering machine body (10) and the ground is matched with the diameter of the large flue.

10. The sintering machine main building according to claim 9,

also comprises a sintering machine ore bucket (40) arranged at the tail part of the trolley track, a circular cooler feeding chute (50) arranged at the output side of the sintering machine ore bucket (40) and a circular cooler trolley (60) arranged at the output side of the circular cooler feeding chute (50),

the circular cooler trolley (60) and the large flue (20) are positioned on the same horizontal plane.

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