CN217922174U - Converter coarse ash conveying device - Google Patents

Abstract

The utility model relates to a converter coarse dust conveyor relates to environmental protection equipment technical field, is responsible for the problem that the longer normal work of easy influence of maintenance duration that breaks down in order to solve the ash unloading, and it includes the curved and built-in scraper blade ash conveyor of coarse dust storehouse, the slope of built-in scraper blade ash conveyor sets up in the curved bottom of banana, the built-in scraper blade ash conveyor is linked together with the banana is curved, the curved one side intercommunication of banana of built-in scraper blade ash conveyor keeping away from has the ash unloading to be responsible for, the ash unloading is responsible for and communicates to the coarse dust storehouse in, still be provided with pneumatic push-pull valve and pneumatic flap valve on the ash unloading is responsible for, the bottom intercommunication in coarse dust storehouse has the ash discharge, the ash discharge is responsible for and is provided with manual push-pull valve and star type ash discharge valve, still the intercommunication has the accident ash discharge pipe on the built-discharge conveyor, the ash discharge pipe is kept away from the one end intercommunication of built-in scraper blade ash conveyor on the coarse dust storehouse, the accident ash discharge pipe is provided with accident push-pull valve and accident flap valve. This application has the effect of guaranteeing work efficiency.

Description

Converter coarse ash conveying device

Technical Field

The application relates to the technical field of environmental protection equipment, in particular to a converter coarse ash conveying device.

Background

The dry dedusting technology is a dedusting process for converter steelmaking, has the advantages of low environmental pollution, low operation cost and the like, and is well applied to many steel enterprises at home and abroad. The high-temperature flue gas (1400-1600 ℃) is cooled by each section of the vaporization cooling flue, and the temperature is reduced to 850-1000 ℃. The flue gas passes through an evaporative cooler, is directly cooled to about 250 ℃ by water mist formed by a double-flow atomizing spray gun, and then passes through a dust removal pipeline, an electrostatic dust collector, a centrifugal fan and a coal gas cooler to a coal gas cabinet or a chimney for emission.

The evaporative cooler which is one of the core devices of the dry dedusting system has a strong cooling effect on the flue gas and can also achieve a coarse dedusting effect on the flue gas, and the coarse dust amount accounts for 40% of the total dedusting amount of the dry dedusting system. At present, an evaporative cooler, namely a banana bend (a coarse ash conveying system), is adopted by a dry dedusting system of a converter steelmaking workshop to treat primary smoke in the converter workshop.

In the existing coarse ash conveying system, banana bends are discharged into a coarse ash bin through an ash conveyor, and finally ash is discharged through the coarse ash bin; the ash conveying machine is communicated with the coarse ash bin through the ash discharging main pipe, the ash discharging main pipe is prone to failure in the conveying process, the failure point of the ash discharging main pipe is not prone to being checked, the required maintenance time is long, normal ash discharging treatment is prone to being influenced, and therefore the problem needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the maintenance time is longer and the normal work is easily influenced when the ash discharging main pipe breaks down, the application provides a converter coarse ash conveying device.

The application provides a converter coarse ash conveyor adopts following technical scheme:

the converter coarse ash conveying device comprises a coarse ash bin, a banana bend and a built-in scraper ash conveyor, wherein the built-in scraper ash conveyor is obliquely arranged at the bottom of the banana bend, the built-in scraper ash conveyor is communicated with the banana bend, one side, away from the banana bend, of the built-in scraper ash conveyor is communicated with an ash unloading main pipe, the ash unloading main pipe is communicated into the coarse ash bin, a pneumatic gate valve and a pneumatic flap valve are further arranged on the ash unloading main pipe, the bottom of the coarse ash bin is communicated with an ash discharging main pipe, a manual gate valve and a star-shaped ash discharging valve are arranged on the ash discharging main pipe, an accident ash discharging pipe is further communicated with the built-in scraper ash conveyor, one end, away from the built-in scraper ash conveyor, of the accident ash discharging pipe is communicated with the coarse ash bin, and an accident gate valve and an accident flap valve are arranged on the accident ash discharging pipe.

The ash discharge main pipe is easy to break down in the conveying process, and the fault point of the ash discharge main pipe is difficult to check, so that the required maintenance time is long, and the normal ash discharge treatment is easy to influence; by adopting the technical scheme, the device comprises a coarse ash bin, a banana bend and a built-in scraper ash conveyer, wherein the built-in scraper ash conveyer is communicated with an ash unloading main pipe and an accident ash unloading pipe, and the accident ash unloading pipe is provided with an accident gate valve and an accident flap valve; when the ash unloading main pipe fails to work normally during the operation of the equipment, the accident gate valve and the accident gate valve are opened, the built-in scraper ash conveyor continues to unload ash from the accident ash unloading pipe into the coarse ash bin, meanwhile, the pneumatic gate valve on one side of the ash unloading main pipe can be closed, maintenance personnel can inspect and overhaul the ash unloading main pipe, and after the overhaul is finished, the pneumatic gate valve and the pneumatic gate valve can be reopened to work, and the accident gate valve on the accident ash unloading pipe are closed; through the arrangement of the accident ash discharging pipe, the accident gate valve and the accident flap valve, the accident ash discharging pipe does not need to be overhauled after stopping working, the influence on normal work after the ash discharging main pipe breaks down is reduced, and the stability of the equipment during operation is improved while the working efficiency is ensured.

Optionally, a bag-type dust collector is arranged at the top of the coarse dust bin, and the bag-type dust collector is communicated with the inside of the coarse dust bin.

By adopting the technical scheme, the bag-type dust collector is arranged at the top of the coarse ash bin; through the setting of sack dust removal bag for retrieve the raise dust of unloading the ash in-process, possess dust removal function, prevent that the coarse dust from gracefully arriving the workshop, reduce the staff in the workshop and inhale the possibility that coarse dust etc. caused the influence to the health in a large number, improved staff's security, reduce simultaneously that coarse dust etc. get into the inside possibility that leads to equipment to break down of other equipment.

Optionally, the top of the coarse ash bin is further provided with a rotation-resistant level indicator for monitoring the ash storage amount in the coarse ash bin.

By adopting the technical scheme, the top of the coarse ash bin is provided with the rotation-resistant level indicator; through hindering the setting of rotating formula charge level indicator to the ash volume of storing in the thick ash storehouse of real time monitoring reduces the thick ash storehouse and appears the possibility that overflows, and the staff of being convenient for simultaneously in time arranges grey processing to thick ash storehouse, and the practicality is high.

Optionally, a thermometer and a load-bearing meter for monitoring the temperature and weight of the internal ash in real time are arranged on the side wall of the coarse ash bin.

By adopting the technical scheme, the thermometer and the bearing meter are arranged on the side wall of the coarse ash bin; through the setting of thermometer and bearing meter, help the interior ash temperature of worker real time monitoring coarse ash storehouse and weight.

Optionally, a vulcanizing ring pipe is arranged at the bottom of the coarse ash bin.

By adopting the technical scheme, the bottom of the coarse ash bin is provided with the vulcanizing ring pipe; through the setting of vulcanization ring canal, help reducing the temperature of coarse ash in the coarse ash storehouse, dilute the coal gas that is mingled with in the coarse ash, reduce the possibility that the explosion appears in the too high coal gas of inside temperature, improved field work personnel's security.

Optionally, a rapping device for discharging ash is further arranged at the bottom of the coarse ash bin.

By adopting the technical scheme, the rapping device is arranged on the bottom wall of the coarse ash bin; through the arrangement of the rapping device, the possibility that the coarse ash in the coarse ash bin is agglomerated due to moisture so as to influence ash discharge is reduced, and the ash discharge efficiency is improved.

Optionally, the bottom of the coarse ash bin is also communicated with an emergency ash discharge pipe, and the emergency ash discharge pipe is provided with an emergency gate valve and an emergency star-shaped ash discharge valve.

By adopting the technical scheme, the bottom wall of the coarse ash bin is also communicated with an emergency ash discharge pipe, and an emergency gate valve and an emergency star-shaped ash discharge valve are arranged on the emergency ash discharge pipe; through the setting of urgent ash discharge pipe, urgent push-pull valve and urgent star type unloading valve, the ash discharge is responsible for when breaking down unable ash discharge's possibility when reducing thick ash storehouse row ash, has further improved the practicality of equipment.

Optionally, the ash slipping angle of the cone section of the coarse ash bin is 70-85 degrees.

By adopting the technical scheme, the ash sliding angle of the conical section of the coarse ash bin is 70-85 degrees; through the setting of conic section swift current ash angle, be favorable to thick ash storehouse to arrange the ash, improve row's ash efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. due to the arrangement of the accident ash discharging pipe, the accident gate valve and the accident flap valve, the maintenance is carried out without stopping the work, the influence on the normal work after the ash discharging main pipe is in fault is reduced, the working efficiency is ensured, and the stability of the equipment during the operation is improved;

2. the bag type dust removal bag is used for recovering raised dust in the dust discharging process, has a dust removal function, prevents coarse dust from flowing to a workshop, reduces the possibility that workers in the workshop suck the coarse dust in a large amount to influence bodies, improves the safety of the workers, and reduces the possibility that the coarse dust enters other equipment to cause equipment failure;

3. the temperature of the coarse ash in the coarse ash bin can be reduced, the coal gas mixed in the coarse ash can be diluted, the possibility of explosion of the coal gas with overhigh internal temperature can be reduced, and the safety of field workers can be improved.

Drawings

FIG. 1 is a schematic structural diagram of a converter coarse ash conveying device in an embodiment of the present application.

Description of reference numerals: 1. a coarse ash bin; 2. bending the bananas; 3. a scraper ash conveyer is arranged in the ash collecting device; 4. a main ash discharge pipe; 41. a pneumatic gate valve; 42. a pneumatic flap valve; 5. a main ash discharge pipe; 51. a manual gate valve; 52. a star-shaped ash discharge valve; 6. an accident ash discharge pipe; 61. an accident gate valve; 62. an accident flap valve; 7. a bag-type dust collector; 8. a rotation-resisting type level indicator; 9. a thermometer; 10. a load bearing meter; 11. a vulcanization ring pipe; 12. a rapping device; 13. an emergency ash discharge pipe; 131. an emergency gate valve; 132. emergency star-type cinder valve, 14, orifice plate flowmeter.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a converter coarse ash conveying device. Referring to fig. 1, the converter coarse ash conveying device comprises a coarse ash bin 1, a banana bend 2 and a built-in scraper ash conveyor 3, wherein an opening of the banana bend 2 is positioned below an evaporative cooler, the built-in scraper ash conveyor 3 is communicated with the bottom of the banana bend 2, the built-in scraper ash conveyor 3 is obliquely arranged, an ash discharge main pipe 4 is communicated between the built-in scraper ash conveyor 3 and the coarse ash bin 1, and a pneumatic gate valve 41 and a pneumatic flap valve 42 for switching on and off the ash discharge main pipe 4 are arranged on the ash discharge main pipe 4; the pneumatic flap valve 42 in this embodiment is a main ash discharging device, and is formed by connecting two flat valves up and down in series, that is, an upper flap valve and a lower flap valve, and the valve body is pushed to close and open by a cylinder. Through the rhythmic alternate action of opening and closing one of the upper flap valve and the lower flap valve in the up-and-down sequence of the two flap valves, the dust and the ash are cut into sections in a continuous flowing state and then are sent into the coarse ash bin 1 below.

Referring to fig. 1, an accident ash discharging pipe 6 is also communicated with the built-in scraper ash conveyer 3, one end, far away from the built-in scraper ash conveyer 3, of the accident ash discharging pipe 6 is communicated with the coarse ash bin 1, and an accident gate valve 61 and an accident gate valve 62 for on-off are installed on the accident ash discharging pipe 6; when the ash discharging main pipe 4 breaks down, the ash discharging main pipe 4 does not need to be overhauled after stopping working, the influence on normal work after the ash discharging main pipe 4 breaks down is reduced, and the stability of the equipment during operation is improved while the working efficiency is ensured.

Referring to fig. 1, sack cleaner 7 is installed at the top in thick ash storehouse 1, and sack cleaner 7 is linked together with thick ash storehouse 1 is inside for collect thick ash of 1 top discharge in thick ash storehouse, possess the dust removal function, prevent that thick ash from flowing away to the workshop and cause the possibility of influence to the staff's health, improved staff's security.

Referring to fig. 1, a rotation-resisting type material level meter 8, a thermometer 9 and a bearing meter 10 are installed on the side wall of the coarse ash bin 1 and used for monitoring parameters such as ash storage amount, ash temperature and the like in the ash bin in real time and ensuring that the coarse ash bin 1 can be found in time when an abnormal state occurs.

Referring to fig. 1, the bottom of the coarse ash bin 1 is further communicated with a vulcanizing loop 11, nitrogen is introduced into the coarse ash bin 1 through the vulcanizing loop 11 in the embodiment, the temperature of the coarse ash is effectively reduced, coal gas mixed with the coarse ash is diluted, the occurrence of explosion caused by high temperature is reduced, and a pore plate flowmeter 14 for monitoring the flow rate of the introduced nitrogen is further installed on the coarse ash bin 1.

Referring to fig. 1, a rapping device 12 is installed at the bottom of the coarse ash bin 1 to reduce the possibility of agglomeration of the coarse ash in the coarse ash bin 1 due to moisture and improve ash discharge efficiency.

Referring to fig. 1, in the embodiment, a coarse ash bin 1 is designed in a circular shape, is made of carbon steel, has an ash sliding angle of 70-85 degrees in a conical section of the coarse ash bin 1, and is adjusted according to different heights of the coarse ash bin 1; the bottom of the coarse ash bin 1 is communicated with an ash discharge main pipe 5, and the ash discharge main pipe 5 is provided with a manual gate valve 51 and a star-shaped ash discharge valve 52 for switching on and off the ash discharge main pipe 5, so as to discharge the coarse ash in the coarse ash bin 1.

Referring to fig. 1, the bottom wall of the coarse ash bin 1 is also communicated with an emergency ash discharge pipe 13, the emergency ash discharge pipe 13 is provided with an emergency gate valve 131 and an emergency star-shaped ash discharge valve 132, the possibility that ash cannot be discharged when the ash discharge main pipe 5 fails during ash discharge of the coarse ash bin 1 is reduced, and the practicability of the equipment is further improved.

The implementation principle of the converter coarse ash conveying device in the embodiment of the application is as follows: when coarse ash is treated, the smoke dust enters the banana bend 2, coarse-particle smoke dust is accumulated at the bottom of the banana bend 2 and is continuously discharged by the built-in scraper ash conveyor 3 due to the deceleration of air flow and the wetting of water mist at an inlet to the smoke dust, at the moment, the pneumatic gate valve 41 and the pneumatic flap valve 42 are in an open state, the coarse ash enters the coarse ash bin 1 through the ash discharge main pipe 4, at the moment, the bag-type dust collector 7 collects the coarse ash discharged from the top of the coarse ash bin 1, the rotation-resistant material level meter 8, the thermometer 9 and the bearing meter 10 work, parameters such as ash storage amount and ash temperature in the ash bin are monitored in real time, nitrogen is introduced into the vulcanization ring pipe 11, and when the excessive smoke dust and the like in the coarse ash bin 1 are observed, the manual gate valve 51 and the star-shaped ash discharge valve 52 are opened, and the coarse ash is discharged from the ash discharge main pipe 5;

when the ash discharging main pipe 4 has a fault, the accident gate valve 61 and the accident gate valve 62 are opened, so that the coarse ash in the built-in scraper ash conveyer 3 enters the accident ash discharging pipe 6, and the coarse ash continues to be discharged into the coarse ash bin 1 through the accident ash discharging pipe 6; through the setting of accident unloading pipe 6, accident push-pull valve 61 and accident flap valve 62, need not to overhaul after the stop work, reduced the ash unloading and be responsible for 4 and break down the influence to normal work after, guaranteed stability when improve equipment operation when work efficiency.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A converter coarse ash conveyor which characterized in that: the novel banana dust unloading device is characterized by comprising a coarse dust bin (1), a banana bend (2) and a built-in scraper dust conveyor (3), wherein the built-in scraper dust conveyor (3) is obliquely arranged at the bottom of the banana bend (2), the built-in scraper dust conveyor (3) is communicated with the banana bend (2), one side, away from the banana bend (2), of the built-in scraper dust conveyor (3) is communicated with a dust unloading main pipe (4), the dust unloading main pipe (4) is communicated into the coarse dust bin (1), a pneumatic gate valve (41) and a pneumatic gate valve (42) are further arranged on the dust unloading main pipe (4), the bottom of the coarse dust bin (1) is communicated with a dust discharging main pipe (5), a manual gate valve (51) and a star-shaped dust unloading valve (52) are arranged on the dust discharging main pipe (5), an accident dust pipe (6) is further communicated on the built-in scraper dust conveyor (3), one end, away from the built-in scraper dust conveyor (3), of the accident dust unloading pipe (6) is communicated with the coarse dust bin (1), and the accident dust unloading pipe (61) is provided with an accident dust unloading pipe (62).

2. The converter coarse ash conveying device according to claim 1, characterized in that: the top of the coarse ash bin (1) is provided with a bag-type dust collector (7), and the bag-type dust collector (7) is communicated with the inside of the coarse ash bin (1).

3. The converter coarse ash conveying device according to claim 1, characterized in that: the top of the coarse ash bin (1) is also provided with a rotation-resistant level indicator (8) for monitoring the ash storage amount in the coarse ash bin (1).

4. The converter coarse ash conveying device according to claim 1, characterized in that: and a thermometer (9) and a load-bearing meter (10) for monitoring the internal ash temperature and the weight in real time are arranged on the side wall of the coarse ash bin (1).

5. The converter coarse ash conveying device according to claim 1, characterized in that: the bottom of the coarse ash bin (1) is communicated with a vulcanizing ring pipe (11).

6. The converter coarse ash conveying device according to claim 1, characterized in that: the bottom of the coarse ash bin (1) is also provided with a rapping device (12) for discharging ash.

7. The converter coarse ash conveying device according to claim 1, characterized in that: the bottom of the coarse ash bin (1) is also communicated with an emergency ash discharge pipe (13), and the emergency ash discharge pipe (13) is provided with an emergency gate valve (131) and an emergency star-shaped ash discharge valve (132).

8. The converter coarse ash conveying device according to any one of claims 1 to 7, characterized in that: the ash sliding angle of the conical section of the coarse ash bin (1) is 70-85 degrees.

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