CN115896382B - Continuous-use coal injection gun device for air port of European smelting furnace after burning loss and use method thereof - Google Patents
Continuous-use coal injection gun device for air port of European smelting furnace after burning loss and use method thereof Download PDFInfo
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- CN115896382B CN115896382B CN202211311250.8A CN202211311250A CN115896382B CN 115896382 B CN115896382 B CN 115896382B CN 202211311250 A CN202211311250 A CN 202211311250A CN 115896382 B CN115896382 B CN 115896382B
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- 239000003245 coal Substances 0.000 title claims abstract description 250
- 238000002347 injection Methods 0.000 title claims abstract description 206
- 239000007924 injection Substances 0.000 title claims abstract description 206
- 238000003723 Smelting Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 105
- 239000001301 oxygen Substances 0.000 claims description 105
- 229910052760 oxygen Inorganic materials 0.000 claims description 105
- 238000007689 inspection Methods 0.000 claims description 27
- 238000010926 purge Methods 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 230000002512 anti-withdrawal effect Effects 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000009957 hemming Methods 0.000 claims description 2
- 238000009854 hydrometallurgy Methods 0.000 claims 5
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 238000005056 compaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 244000144985 peep Species 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The application relates to the technical field of a coal injection gun at an air port of an European smelting furnace, and particularly discloses a coal injection gun device at the air port of the European smelting furnace, which can be used continuously after burning loss, and a using method thereof.
Description
Technical Field
The application relates to the technical field of coal injection guns at air ports of European smelting furnaces, and particularly discloses a sustainable-use coal injection gun device at the air ports of European smelting furnaces after burning loss and a use method thereof.
Background
The European smelting furnace adopts the pulverized coal injection, so that the gasification effect is greatly improved, the gas generation amount can be effectively increased, and the quality of the reduced gas is improved. The chemical products are produced by using the high-heat-value gas of the European smelting furnace, the civil gas is provided, the added value of the gas is improved, and the competitive advantage of the European smelting furnace process is improved;
in the pulverized coal injection process of the European smelting furnace, the influence of complex structure of the air receiving port, use the axial insertion gun mode of the oxygen lance, after the coal injection gun burns out, can't check and adjust the coal injection gun, cause the unstable coal injection state, the phenomenon that the coal flow of the coal injection gun wears out and seals easily appears, can only wait for the replacement after damping down once burning out, the purpose of the application is to solve the unable adjustment after the coal injection gun burns out of the European smelting furnace, realize the online adjustment European smelting furnace air port of the damping down to inject pulverized coal, in view of this, the inventors propose the sustainable use of European smelting furnace air port coal injection gun device after burning out and its use method.
Disclosure of Invention
The application aims to solve the problems that after burning loss of a coal injection gun of an European smelting furnace, the coal injection gun cannot be adjusted and damping down is needed.
In order to achieve the above object, the present application provides the following basic scheme:
the utility model provides a sustainable use's after burning loss ouye stove wind gap coal injection rifle device, includes big cover of oxygen wind gap and oxygen wind gap coal injection cover, the big cover of oxygen wind gap embeds has ouye stove oxygen rifle, ouye stove coal injection rifle barrel and possesses the coal injection rifle shutoff subassembly of preventing moving back the function, the oxygen rifle of ouye stove is worn out from the little cover of oxygen wind gap coal injection, and the big cover of oxygen wind gap is equipped with the coal supply subassembly that possesses the on-line inspection ouye stove coal injection rifle barrel inner wall of the gun barrel one end of ouye stove coal injection rifle, the other end and the coal injection rifle shutoff subassembly intercommunication of the gun barrel of ouye stove are placed in the oxygen wind gap coal injection cover.
The principle and effect of this basic scheme lie in:
1. compared with the prior art, the device realizes the on-line inspection and adjustment of the coal injection at the tuyere of the European smelting furnace, sets the coal injection gun plugging component and the coal feeding component, can build the rear end to continuously push in after the front coal injection gun barrel is burnt by heat radiation, supplements the front position, contains a device for preventing gun withdrawal, realizes the function of on-line continuous use, and reduces the use cost.
2. Compared with the prior art, the separate design of the gun barrel of the coal injection gun of the European-smelting furnace and the oxygen gun of the European-smelting furnace is realized, the gun barrel of the coal injection gun of the European-smelting furnace is used for discharging coal, the oxygen gun of the European-smelting furnace is used for discharging oxygen, the gun barrel and the oxygen gun are converged at the outlet position of the coal injection small sleeve at the oxygen port, the full mixing of oxygen and coal dust is realized, and the separate design is favorable for improving the efficiency and the subsequent inspection and maintenance.
3. Compared with the prior art, the coal injection gun plugging assembly is arranged, the furnace can be isolated, the gun barrel of the coal injection gun of the European smelting furnace can be changed, when the front end of the gun barrel of the coal injection gun of the European smelting furnace is damaged due to temperature, the gun barrel of the coal injection gun of the European smelting furnace in the oxygen tuyere large sleeve can be prolonged out and pushed in continuously, and the front section position is supplemented.
Further, the big cover of oxygen wind gap and the little cover of oxygen wind gap coal injection are the structure that big footpath and slope set up, the big footpath position of big cover of oxygen wind gap is close to the coal supply subassembly, the big footpath position of little cover of oxygen wind gap coal injection is close to the little footpath position of big cover of oxygen wind gap, the little footpath position of little cover of oxygen wind gap coal injection is at the distal end.
Further, the coal feeding assembly is a structure for conveying carbon powder into the gun barrel of the coal injection gun of the European smelting furnace, the coal feeding assembly comprises a coal injection hose detachably connected with the gun barrel of the coal injection gun of the European smelting furnace, a regulating valve arranged at the connecting point of the coal injection hose and the gun barrel of the coal injection gun of the European smelting furnace, and a three-way valve arranged on the gun barrel of the coal injection gun of the European smelting furnace, and a purging hose is arranged on the three-way valve.
Further, the hydraulic control system also comprises a coal injection gun control valve, wherein the coal injection gun control valve is arranged at the joint of the coal feeding assembly and the gun barrel of the coal injection gun of the European smelting furnace, and the coal injection gun control valve is a control and opening master valve.
Further, including the on-line inspection subassembly, the on-line inspection subassembly includes peep hole cap, gasket, glass panel and peep hole connection hexagonal external silk, takes off the coal injection hose, installs the peep hole connection hexagonal external silk on the governing valve, sees the inner wall condition of the European smelting furnace coal injection rifle barrel through the glass panel.
Further, the coal injection gun plugging assembly is a plugging assembly for isolating the outside of the furnace in the furnace, the coal injection gun plugging assembly comprises an anti-withdrawal gun compacting cap sleeved outside a gun barrel of the coal injection gun of the European smelting furnace, an external compacting sleeve of the coal injection gun plugging member and a coal injection gun connecting sleeve, a locking copper ring, a force transmission sleeve, a reverse compacting spring, an anti-withdrawal gun gasket and a reverse compacting spring are sequentially arranged in the anti-withdrawal gun compacting cap, a sealing ring is arranged in the coal injection gun connecting sleeve, the left end of the external compacting sleeve of the coal injection gun plugging member is in contact with the reverse compacting spring, and the other end of the coal injection gun plugging member can be inserted into the coal injection gun connecting sleeve.
Further, the outer part of the coal injection gun connecting sleeve is in a ladder shape, the middle section of the coal injection gun connecting sleeve is highest, the left side of the middle section is in a ladder section, and the right side of the middle section is in a ladder section.
Further, the oxygen air port large sleeve and the oxygen air port coal injection small sleeve are inclined from the large diameter position to the small diameter position, and the inclination angles of the oxygen air port large sleeve and the oxygen air port coal injection small sleeve are the same and are both 30 degrees.
Based on the same conception, the application provides a method for using the coal injection gun device at the tuyere of the European smelting furnace, which can be used continuously after burning, and the method comprises the following steps:
s01: distributing by a distributor and conveying pulverized coal into the furnace through a coal injection hose; oxygen is conveyed into the furnace through an oxygen lance of the European smelting furnace, and the oxygen lance of the European smelting furnace is externally connected with an oxygen machine;
s02: observing the gun barrel of the European-smelting furnace at the end part of the coal injection small sleeve at the oxygen tuyere, if the gun barrel of the European-smelting furnace burns out, pushing the gun barrel of the European-smelting furnace positioned outside the large sleeve at the oxygen tuyere to move inwards, so that the gun barrel of the redundant European-smelting furnace is exposed, and supplementing the burning part of the gun barrel of the European-smelting furnace;
s03: when on-line inspection is needed, stopping coal powder input and oxygen input, introducing nitrogen into a purging hose, opening a three-way valve, purging nitrogen into the coal injection gun along the three-way valve to purge and cool down for protection, closing a regulating valve after purging coal powder in the coal gun completely, dismantling the coal injection hose, and after installing an on-line inspection assembly, opening the regulating valve to inspect the burning loss state of the coal injection gun.
Further, the check at step S03 is as follows: after the on-line inspection assembly is connected, the on-line inspection assembly is installed on the regulating valve, the condition of the edge of the gun barrel of the coal injection gun of the European smelting furnace can be inspected by opening the regulating valve, the hemming caused by edge burning occurs, and the coal injection gun is extended to be flush with the edge of the small sleeve.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic structural diagram of a coal injection gun device at a tuyere of an ouye furnace, which can be continuously used after burning loss according to an embodiment of the present application;
fig. 2 shows a schematic structural diagram of a coal injection gun plugging component in a coal injection gun device at a tuyere of an ouye furnace, which can be continuously used after burning loss according to an embodiment of the application;
fig. 3 shows a schematic structural diagram of an external compaction sleeve of a coal injection gun plugging member in a coal injection gun plugging assembly in a coal injection gun device at a tuyere of an ouye furnace, which can be continuously used after burning loss;
fig. 4 shows a schematic structural diagram of each component of a coal gun plugging component in a device for continuously using a coal injection gun at a tuyere of an ouye furnace after burning according to an embodiment of the present application;
fig. 5 shows a schematic diagram of a coal injection gun connecting sleeve in a coal injection gun plugging assembly in a coal injection gun device at a tuyere of an ouye furnace, which can be continuously used after burning loss according to an embodiment of the application;
FIG. 6 shows a schematic structural diagram of an oxygen tuyere large sleeve in a burning-out sustainable-use European and Metallurgical tuyere coal injection gun device according to an embodiment of the present application;
fig. 7 shows a schematic structural diagram of an oxygen tuyere coal injection sleeve in a device for a coal injection gun at a tuyere of an ouye furnace, which can be continuously used after burning loss according to an embodiment of the present application;
FIG. 8 shows a schematic diagram for realizing on-line inspection in a continuous-use European-smelting-furnace tuyere coal injection gun device after burning according to an embodiment of the present application;
FIG. 9 shows a schematic structural diagram of an on-line inspection assembly in a lance device for a tuyere of a European and metallurgical furnace, which can be continuously used after burning according to an embodiment of the present application;
fig. 10 shows a schematic structural diagram of each component in the on-line inspection component in the upflow furnace tuyere coal injection gun device which can be continuously used after burning according to the embodiment of the application.
Detailed Description
Reference numerals in the drawings of the specification include: the device comprises a coal injection hose 1, a regulating valve 2, a three-way valve 3, a purging hose 4, an oxygen tuyere large sleeve 5, a coal injection gun control valve 6, an oxygen gun 7 of the European smelting furnace, a coal injection gun barrel 8 of the European smelting furnace, a coal injection gun plugging component 9, an oxygen tuyere coal injection small sleeve 10, a coal injection gun plugging piece external compaction sleeve 11, a coal injection gun connecting sleeve 12, a sealing ring 13, an on-line inspection component 14, a peephole cap 15, a gasket 16, a glass panel 17, a peephole connecting hexagonal external wire 18, an anti-withdrawal gun compaction cap 19, an anti-withdrawal gun gasket 20, a reverse compaction spring 21, a compaction sealing gasket 22, a force transmission sleeve 23 and a locking copper ring 24.
Examples are shown in fig. 1-10:
the device comprises an oxygen tuyere large sleeve 5 and an oxygen tuyere coal injection small sleeve 10, wherein an oxygen lance 7, an oxygen lance gun barrel 8 and a coal injection gun plugging component 9 with a withdrawal prevention function are arranged in the oxygen tuyere large sleeve 5, the oxygen lance 7 penetrates out of the oxygen tuyere coal injection small sleeve 10 and is flush with the oxygen tuyere coal injection small sleeve 10, the left end of the oxygen tuyere coal injection gun barrel 8 penetrates out of the oxygen tuyere large sleeve 5 and is provided with a coal feeding component with an on-line inspection function for the inner wall of the oxygen lance gun barrel 8, and the right end of the oxygen lance gun barrel 8 is communicated with the coal injection gun plugging component 9 and then is arranged in the oxygen tuyere coal injection small sleeve 10 and is flush with the oxygen tuyere large sleeve 5;
specifically, as shown in fig. 1, 5 and 6, the oxygen tuyere large sleeve 5 and the oxygen tuyere coal injection small sleeve 10 are of structures which are large and small in diameter and are obliquely arranged, the large-diameter position of the oxygen tuyere large sleeve 5 is close to the coal feeding assembly, the large-diameter position of the oxygen tuyere coal injection small sleeve 10 is close to the small-diameter position of the oxygen tuyere large sleeve 5, the small-diameter position of the oxygen tuyere coal injection small sleeve 10 is at the farthest end, the oxygen tuyere large sleeve 5 and the oxygen tuyere coal injection small sleeve 10 are integrally formed, the oxygen tuyere large sleeve 5 and the oxygen tuyere coal injection small sleeve 10 are both inclined from the large-diameter position to the small-diameter position, and the inclination angles of the oxygen tuyere large sleeve 5 and the oxygen tuyere coal injection small sleeve 10 are the same and are both 30 degrees.
The main body part of the oxygen lance 7 of the European smelting furnace is wholly internally provided with an oxygen tuyere large sleeve 5, and the gun barrel 8 of the coal injection lance of the European smelting furnace is internally provided with the oxygen tuyere large sleeve 5 and an oxygen tuyere coal injection small sleeve 10;
the left end of the gun barrel 8 of the coal injection gun of the European smelting furnace is provided with a coal feeding component by penetrating out from the oxygen tuyere large sleeve 5, and the coal feeding component is specifically: as shown in fig. 1, the coal feeding assembly is a structure for conveying carbon powder into the gun barrel 8 of the coal injection gun of the ouye furnace, and comprises a coal injection hose 1 detachably connected with the gun barrel 8 of the coal injection gun of the ouye furnace, a regulating valve 2 arranged at the connection point of the coal injection hose 1 and the gun barrel 8 of the coal injection gun of the ouye furnace, and a three-way valve 3 arranged on the gun barrel 8 of the coal injection gun of the ouye furnace, wherein the three-way valve 3 is provided with a purging hose 4.
Coal injection hose 1: pulverized coal is conveyed into the furnace by the distributor pulverized coal through a hose; when the coal injection hose 1 is used, the three-way valve 3 is in a closed state, and the hydraulic control system further comprises a coal injection gun control valve 6, wherein the coal injection gun control valve 6 is arranged at the joint of the coal feeding assembly and the coal injection gun barrel 8 of the European smelting furnace, and the coal injection gun control valve 6 is a total valve for control and opening.
Coal dust enters from a coal injection hose 1, passes through a main valve and enters into a coal injection gun barrel 8 of the European smelting furnace in an oxygen tuyere large sleeve 5, and is sprayed out from an oxygen tuyere coal injection small sleeve 10, in the process, the European smelting furnace oxygen gun 7 is used for discharging oxygen and is also sprayed out from the oxygen tuyere coal injection small sleeve 10, and the coal dust and the oxygen are mixed;
the online inspection assembly 14 is further needed, as shown in fig. 8, 9 and 10, the online inspection assembly 14 comprises a peephole cap 15, a gasket 16, a glass panel 17 and a peephole connection hexagonal external wire 18, the coal injection hose 1 is taken down, the peephole connection hexagonal external wire 18 is arranged on the regulating valve 2, and the condition of the inner wall of the gun barrel 8 of the European smelting furnace is observed through the glass panel 17.
Specific: the operation is as follows: when the coal injection gun needs to be checked on line, nitrogen is introduced into the purging hose 4, the three-way valve 3 is opened, the purging nitrogen enters the coal injection gun along the three-way valve 3 to purge and cool down for protection, meanwhile, after the coal dust in the coal gun is purged completely, the adjusting valve 2 is closed, the coal injection hose 1 is dismantled, after the on-line checking component 14 is installed, the adjusting valve 2 is opened to check the burning loss state of the coal injection gun, and the checking is as follows: after the on-line inspection assembly 14 is connected, the on-line inspection assembly is installed on the regulating valve 2, and the edge condition of the gun barrel 8 of the coal injection gun of the European smelting furnace can be inspected by opening the regulating valve 2. When edge burning and damage caused curled edges appear, the coal injection gun is extended to the edge to be flush with the edge of the small sleeve, after the locking nut of the coal injection gun is pressed, the spray gun adjustment is completed, the on-line inspection assembly 14 is screwed down, the coal injection hose 1 is connected, the blowing pneumatic valve on the distributor is turned into a blowing state, and the adjustment and re-blowing state of the coal injection gun are completed;
under actual operation: when the pulverized coal is injected, the pulverized coal flow blows the pulverized coal into the swirl zone at the front end of the oxygen tuyere along the pulverized coal pipe under the transportation of carrier gas, and the pulverized coal participates in the combustion of the swirl zone of the tuyere. After the burning loss of the coal injection gun occurs, pushing the coal injection gun forwards, and supplementing the burning loss part;
regarding the process of pushing the coal injection gun forward after the coal injection gun is burned, specifically: as shown in fig. 2, 3, 4 and 5:
specific: the coal injection gun plugging assembly 9 is a plugging assembly for isolating the outside of the furnace in the furnace, the coal injection gun plugging assembly 9 comprises an anti-withdrawal gun compacting cap 19 sleeved outside a coal injection gun barrel 8 of the European smelting furnace, an outer compacting sleeve 11 of a coal injection gun plugging member and a coal injection gun connecting sleeve 12, a locking copper ring 24, a force transmission sleeve 23, a reverse compacting spring 21, an anti-withdrawal gun gasket 20 and a reverse compacting spring 21 are sequentially arranged in the anti-withdrawal gun compacting cap 19, a sealing ring 13 is arranged in the coal injection gun connecting sleeve 12, the left end of the outer compacting sleeve of the coal injection gun plugging member is in contact with the reverse compacting spring 21, the other end of the outer compacting sleeve can be inserted into the coal injection gun connecting sleeve 12, the outer part of the coal injection gun connecting sleeve 12 is in a ladder shape, the middle section of the coal injection gun connecting sleeve 12 is the highest, the left step of the middle section, and the right step of the middle section is two sections.
The coal injection gun plugging component 9 is essentially a component which can only be pushed forwards but cannot be pushed backwards, when the gun barrel 8 of the coal injection gun of the European smelting furnace burns out, in order to ensure the air output, the gun barrel 8 of the coal injection gun of the built-in European smelting furnace can only be pushed forwards continuously to ensure the quality of the front end of the gun barrel 8 of the coal injection gun of the European smelting furnace and further ensure the air output;
then, regarding the anti-reversing of the coal injection gun plugging assembly 9, as shown in fig. 2, the gun barrel 8 of the coal injection gun of the ouye furnace moves forward, in the forward process of the gun barrel 8 of the coal injection gun of the ouye furnace, the outer compacting sleeve 11 of the coal injection gun plugging member can enter the coal injection gun connecting sleeve 12 along with the gun barrel 8 of the coal injection gun of the ouye furnace, the outer compacting sleeve 11 of the coal injection gun plugging member is matched with the coal injection gun connecting sleeve 12, the forward movement of the gun barrel 8 of the coal injection gun of the ouye furnace is realized, if the coal injection gun is reversed, the outer compacting sleeve 11 of the coal injection gun plugging member can move to the left, and due to the arrangement of the anti-reversing gun compacting cap 19, the effect of the anti-reversing compacting cap 19, the reverse compacting spring 21 and the locking copper ring 24, the gun barrel 8 of the coal injection gun of the ouye furnace can not move to the left, thereby realizing the anti-reversing of the gun barrel 8 of the coal injection gun of the ouye furnace.
The specific using method comprises the following steps:
s01: the distributor distributes and conveys pulverized coal into the furnace through a coal injection hose 1; oxygen is conveyed into the furnace through an oxygen lance 7 of the European smelting furnace, and the oxygen lance 7 of the European smelting furnace is externally connected with an oxygen machine;
s02: observing the gun barrel 8 of the European and metallurgical furnace at the end part of the coal injection small sleeve 10 at the oxygen tuyere, if the gun barrel 8 of the European and metallurgical furnace is burnt, pushing the gun barrel 8 of the European and metallurgical furnace positioned outside the oxygen tuyere large sleeve 5 to move inwards, so that the gun barrel 8 of the European and metallurgical furnace is exposed, and supplementing the burnt part of the gun barrel 8 of the European and metallurgical furnace;
s03: when on-line inspection is needed, stopping coal powder input and oxygen input, introducing nitrogen into the purging hose 4, opening the three-way valve 3, purging nitrogen into the coal injection gun along the three-way valve 3 to purge and cool down for protection, simultaneously, after purging the coal powder in the coal gun completely, closing the regulating valve 2, dismantling the coal injection hose 1, and after installing the on-line inspection assembly 14, opening the regulating valve 2 to inspect the burning loss state of the coal injection gun.
The device solves the problems that the coal injection gun of the European smelting furnace cannot be adjusted after being burnt and the damping down is necessary.
The present application is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present application.
Claims (8)
1. The utility model provides a sustainable use's after burning loss ouye stove wind gap spouts coal rifle device which characterized in that: the oxygen lance device comprises an oxygen tuyere large sleeve and an oxygen tuyere coal injection small sleeve, wherein an oxygen lance of an European smelting furnace, a coal injection lance barrel of the European smelting furnace and a coal injection lance plugging component with an anti-withdrawal function are arranged in the oxygen tuyere large sleeve; the coal injection gun plugging assembly is a plugging assembly for isolating the outside of the furnace in the furnace, the coal injection gun plugging assembly comprises an anti-withdrawal gun compacting cap sleeved outside a coal injection gun barrel of the European smelting furnace, an anti-withdrawal gun plugging piece external compacting sleeve and a coal injection gun connecting sleeve, a locking copper ring, a force transmission sleeve, a reverse compacting spring, an anti-withdrawal gun gasket and a reverse compacting spring are sequentially arranged in the anti-withdrawal gun compacting cap, a sealing ring is arranged in the coal injection gun connecting sleeve, the left end of the outer compacting sleeve of the coal injection gun plugging piece is in contact with the reverse compacting spring, the other end of the outer compacting sleeve is inserted into the coal injection gun connecting sleeve, the outer part of the coal injection gun connecting sleeve is in a stepped shape, the middle section of the coal injection gun connecting sleeve is highest, the left side of the middle section is stepped, and the right side of the middle section is stepped.
2. The device for injecting coal into a tuyere of an ouye furnace, which can be continuously used after burning loss, according to claim 1, wherein the big sleeve of the oxygen tuyere and the small sleeve of the oxygen tuyere are of structures with large diameter and small diameter and are obliquely arranged, the large diameter position of the big sleeve of the oxygen tuyere is close to a coal feeding assembly, the large diameter position of the small sleeve of the oxygen tuyere is close to the small diameter position of the big sleeve of the oxygen tuyere, and the small diameter position of the small sleeve of the oxygen tuyere is at the most far end.
3. The device for the coal injection gun at the air port of the hydrometallurgy furnace, which can be continuously used after burning loss, according to claim 2, wherein the coal feeding component is a structure for conveying carbon powder into the gun barrel of the coal injection gun of the hydrometallurgy furnace, the coal feeding component comprises a coal injection hose detachably connected with the gun barrel of the coal injection gun of the hydrometallurgy furnace, a regulating valve arranged at the connection point of the coal injection hose and the gun barrel of the coal injection gun of the hydrometallurgy furnace, and a three-way valve arranged on the gun barrel of the coal injection gun of the hydrometallurgy furnace, and the three-way valve is provided with a purging hose.
4. The device for injecting coal into a tuyere of a smelting furnace for sustainable use after burning loss according to claim 3, further comprising a coal injection gun control valve, wherein the coal injection gun control valve is arranged at the joint of the coal feeding assembly and the barrel of the coal injection gun of the smelting furnace, and is a total valve for controlling and opening.
5. The device for continuously using the coal injection gun at the tuyere of the European-smelting furnace after burning loss according to claim 3, which is characterized by comprising an on-line inspection assembly, wherein the on-line inspection assembly comprises a peephole cap, a gasket, a glass panel and a peephole connecting hexagonal external wire, a coal injection hose is taken down, the peephole connecting hexagonal external wire is arranged on a regulating valve, and the condition of the inner wall of the barrel of the coal injection gun of the European-smelting furnace is observed through the glass panel.
6. The device for injecting coal into a tuyere of an ouye furnace, which can be continuously used after burning loss according to claim 2, wherein the large oxygen tuyere sleeve and the small oxygen tuyere sleeve are inclined from a large diameter position to a small diameter position, and the inclination angles of the large oxygen tuyere sleeve and the small oxygen tuyere sleeve are the same and are both 30 degrees.
7. The method for using the continuous-use European-smelting-furnace tuyere coal injection gun device after burning, which is characterized by comprising the following steps of:
s01: distributing by a distributor and conveying pulverized coal into the furnace through a coal injection hose; oxygen is conveyed into the furnace through an oxygen lance of the European smelting furnace, and the oxygen lance of the European smelting furnace is externally connected with an oxygen machine;
s02: observing the gun barrel of the European-smelting furnace at the end part of the coal injection small sleeve at the oxygen tuyere, if the gun barrel of the European-smelting furnace burns out, pushing the gun barrel of the European-smelting furnace positioned outside the large sleeve at the oxygen tuyere to move inwards, so that the gun barrel of the redundant European-smelting furnace is exposed, and supplementing the burning part of the gun barrel of the European-smelting furnace;
s03: when on-line inspection is needed, stopping coal powder input and oxygen input, introducing nitrogen into a purging hose, opening a three-way valve, purging nitrogen into the coal injection gun along the three-way valve to purge and cool down for protection, closing a regulating valve after purging coal powder in the coal gun completely, dismantling the coal injection hose, and after installing an on-line inspection assembly, opening the regulating valve to inspect the burning loss state of the coal injection gun.
8. The method of using a continuous use of a burner tuyere coal injection gun device for a smelting furnace after burning according to claim 7, wherein the checking in step S03 is as follows: after the on-line inspection assembly is connected, the on-line inspection assembly is installed on the regulating valve, the condition of the edge of the gun barrel of the coal injection gun of the European smelting furnace can be inspected by opening the regulating valve, the hemming caused by edge burning occurs, and the coal injection gun is extended to be flush with the edge of the small sleeve.
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| CN115896382B true CN115896382B (en) | 2023-11-10 |
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