CN212404225U - High-grade matte converting rapid mass and heat transfer system - Google Patents
High-grade matte converting rapid mass and heat transfer system Download PDFInfo
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- CN212404225U CN212404225U CN202021198938.6U CN202021198938U CN212404225U CN 212404225 U CN212404225 U CN 212404225U CN 202021198938 U CN202021198938 U CN 202021198938U CN 212404225 U CN212404225 U CN 212404225U
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- cold material
- bottom blowing
- flue
- air supply
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- 238000007664 blowing Methods 0.000 claims abstract description 93
- 239000000463 material Substances 0.000 claims abstract description 93
- 239000007789 gas Substances 0.000 claims abstract description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003546 flue gas Substances 0.000 claims abstract description 31
- 239000003570 air Substances 0.000 claims description 67
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 45
- 229910052802 copper Inorganic materials 0.000 claims description 45
- 239000010949 copper Substances 0.000 claims description 45
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 32
- 230000017525 heat dissipation Effects 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 16
- 239000003345 natural gas Substances 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 6
- 239000003034 coal gas Substances 0.000 claims description 5
- 239000002283 diesel fuel Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
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- 230000003647 oxidation Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
A high-grade matte converting rapid mass and heat transfer system comprises a bottom blowing converter, wherein a thermal matte inlet, a flue gas outlet and a bottom blowing gas supply nozzle are arranged on the bottom blowing converter; the hot matte inlet is arranged on the side wall of one end of the bottom blowing converter; the flue gas outlet is arranged at the top of the bottom blowing converter; the bottom blowing gas supply nozzles are arranged at the bottom of the bottom blowing converter respectively; a thermal state matte feeding pipe is movably arranged on the thermal state matte inlet; the thermal state matte feeding pipe is obliquely arranged, a thermal state matte inlet is connected with the lower end of the thermal state matte feeding pipe, and the thermal state matte enters the bottom blowing converter from the thermal state matte feeding pipe; a flue is movably arranged on the flue gas outlet; a cold material feeding hole is formed in the side wall of the flue; a plurality of cold material feeding holes are formed; a cold material feeding passage is arranged on the cold material feeding hole; the cold material feeding channel is obliquely arranged; the lower end of the cold material feeding channel is connected with the cold material feeding hole.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment, concretely relates to quick mass and heat transfer system of high-grade matte converting.
Background
The nationwide copper concentrate tends to be low-coarse-hybrid gradually, and is particularly characterized in that the raw materials are complex in components, high-melting-point substances such as magnesium and aluminum are high in content, and the copper concentrate is difficult to process due to the low content of effective components such as copper, iron and sulfur in the raw materials. The bottom blowing furnace needs to consume higher energy consumption in the process of treating complex copper concentrate, the desulfurization rate of the bottom blowing furnace is high, the sulfur content in the bottom blowing furnace is low, and the grade of the produced matte is gradually increased. After the grade of the copper matte is increased, the amount of the copper matte produced by the bottom blowing furnace is reduced. 100-110 tons of hot copper matte are required for blowing in the converter once, and the production of 100-110 tons of copper matte in the bottom blowing furnace is required for more than 4-5 hours. Because the bottom blowing furnace adopts the separation technology in the furnace, the amount of copper matte required by one-time blowing of the converter cannot be stored in the furnace, about 25 tons of 1 pack of hot copper matte needs to be discharged in 1.5-2 hours, the hot copper matte is discharged discontinuously, the discharged hot copper matte is transferred by a ladle and poured into the converter for heat preservation, and the discharged hot copper matte is waited for the bottom blowing furnace to produce more copper matte until the converter meets the requirement of the converterFurnace converting conditions. In the process of waiting for, the heat of hot matte can lose gradually, the converter begins the converting after waiting for longer time, know from matte converting principle, the required heat of converter converting reaction mainly derives from the oxidation of iron and releases heat, matte grade is when 70% -80%, iron content is at 4.5-1.6%, contrast low grade matte converting, the reduction of iron content, make the heat of reaction significantly reduce, hot matte calorific loss and converting release heat less lead to converting process melt temperature lower, influence converting process impurity element's deviating from. In the blowing process, the converter needs to be rotated, cold materials and quartz sand are added into the converter, and a large amount of SO is generated in the rotating process2The flue gas overflows; in addition, the temperature of the discharged flue gas is very high and can reach 1000 ℃, the flue gas has much energy, and the traditional method is to cool the flue gas by additionally arranging a water cooling cover on a flue gas pipeline.
The following problems exist in the copper matte converting process at present:
1) when the converter is used for feeding production, the feeding is restricted by the working procedure of a smelting bottom blowing furnace, the waiting time is long, the feeding time of the first two bags of materials is too long, about 2.5 hours, the temperature is obviously low, and the heat is insufficient.
2) Along with the rise of the grade of matte, the blowing time of copper per ton is shortened, the impurity removal capacity of the converter is reduced, the blowing time of copper per ton is 4-5min at the grade of 60% -65%, the blowing time of copper per ton is 1.8-2.6min at the grade of 70% -77%, and the reduction of the blowing time means that the oxidation reaction time of impurity elements is shortened, so that the impurity removal capacity of the converter is low, the impurity elements in crude copper are high, and the grade of the crude copper cannot reach 98.5%.
3) The melt temperature is low, the air pressure of the converter air hole rises quickly, the air hole needs to be poked frequently by manpower, and the labor intensity of the worker is increased.
4) The melt temperature in the blowing process is too low, so that the condition of converter blowing is easy to occur, and the production stop of equipment can be caused seriously.
5) In the process of adding hot matte, cold materials and quartz sand into a converter, a converter mouth needs to be turned to an accident position, and smoke in the converter can escape outwards in the rotating process, so that low-altitude pollution is caused.
6) The hot copper matte needs to be lifted by the steamed stuffed bun, and the low-altitude pollution is caused by the overflow of the hot copper matte smoke.
7) The water cooling system is easy to generate thermal fatigue damage under the action of alternating thermal stress, and a cooling water pipe is locally broken, so that the problem of large-area water leakage is caused, and serious explosion is caused.
Disclosure of Invention
The utility model aims to avoid the not enough of prior art, provide a quick mass transfer heat transfer system of high-grade matte converting and method thereof, accomplish quick mass transfer heat transfer and the cyclic utilization of energy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-grade matte converting rapid mass and heat transfer system comprises a bottom blowing converter, wherein a thermal matte inlet, a flue gas outlet and a bottom blowing gas supply nozzle are arranged on the bottom blowing converter;
the hot matte inlet is arranged on the side wall of one end of the bottom blowing converter; the flue gas outlet is arranged at the top of the bottom blowing converter; the bottom blowing gas supply nozzles are arranged at the bottom of the bottom blowing converter respectively;
a thermal state matte feeding pipe is movably arranged on the thermal state matte inlet; the thermal state matte feeding pipe is obliquely arranged, a thermal state matte inlet is connected with the lower end of the thermal state matte feeding pipe, and the thermal state matte enters the bottom blowing converter from the thermal state matte feeding pipe;
a flue is movably arranged on the flue gas outlet; a cold material feeding hole is formed in the side wall of the flue; a plurality of cold material feeding holes are formed; a cold material feeding passage is arranged on the cold material feeding hole; the cold material feeding channel is obliquely arranged; the lower end of the cold material feeding channel is connected with the cold material feeding port, and the materials enter the bottom blowing converter through the flue from the cold material feeding channel.
Further, a support table is arranged above the bottom blowing converter; a compartment is arranged on the supporting platform; a heat dissipation flue is communicated above the flue; the heat dissipation flue is set to be of a curve structure; the heat dissipation flue is arranged inside the compartment, and an outlet of the heat dissipation flue is arranged outside the compartment; the top of the compartment is provided with a cold material feed opening; a cold material discharging channel is arranged at the bottom of the cold material discharging port; the bottom of the cold material discharging channel is connected with the cold material feeding channel.
Furthermore, the cold material discharging channel comprises a first discharging screw, a second discharging screw and a buffer bin; the top of the first feeding spiral is connected with a cold material feeding opening, and the bottom of the first feeding spiral is connected with the top of the cache bin; the top of the second discharging spiral is connected with the bottom of the buffer bin, and the bottom of the second discharging spiral is connected with the cold material feeding channel.
Further, the cold material feeding channel is arranged to be of a telescopic sleeve structure.
Further, an insulating layer is arranged on the outer wall of the compartment; and a temperature sensor and a pressure sensor are arranged on the inner wall of the compartment.
Further, the hot copper matte feeding pipe comprises a first sleeve and a second sleeve; the first sleeve is sleeved inside the second sleeve; a buffer interlayer is arranged between the first sleeve and the second sleeve.
Further, the first sleeve is made of high-temperature-resistant nano ceramic materials; the second sleeve is made of high-temperature-resistant stainless steel.
Further, a first air supply hole, a second air supply hole and a third air supply hole are formed in the bottom blowing air supply nozzle; the first air supply hole is arranged in the center of the cross section of the bottom blowing air supply nozzle; the second air supply holes are uniformly arranged around the first air supply holes in a surrounding manner; the third air supply hole is provided with a plurality of air supply holes which are uniformly arranged around the second air supply hole in a surrounding mode.
Further, the first gas supply hole is communicated with natural gas, diesel oil or coal gas; the second air supply hole is communicated with oxygen or oxygen-enriched air or air; and the third gas supply hole is communicated with air, nitrogen or inert gas.
Further, the first gas supply hole is communicated with natural gas; the second air supply hole is communicated with oxygen; the third air supply hole is communicated with air.
The method for quickly transferring mass and heat in blowing of the high-grade matte comprises the following steps:
flue gas heat recycling:
a curved heat dissipation flue is arranged above the flue, the flue gas exchanges heat with the outside air through the heat dissipation flue, and a part of heat is transferred to the inside of the compartment; insulation on the exterior of the compartment ensures that heat remains inside the compartment; before feeding, the cold materials are preheated through the compartment to absorb heat, the cold materials enter the bottom blowing converter after being heated to a certain temperature, the flue gas is subjected to heat dissipation and transfer, and the temperature of the flue gas exhausted from the heat dissipation flue is reduced to a certain degree;
feeding materials:
the hot copper matte is in a liquid state during feeding and enters a bottom blowing converter from a first sleeve in a hot copper matte feeding pipe under the action of gravity; the buffer interlayer and the first sleeve are arranged outside the second sleeve, so that the first sleeve made of porcelain is protected while a certain heat preservation effect is achieved;
when cold materials are fed, firstly, the materials at normal temperature are stored in a cache bin through a cold material feed opening and temporarily placed, the materials in the cache bin are preheated through high temperature in a compartment, the materials enter a flue through a cold material feed channel under the action of gravity after being preheated to a certain temperature, and then the materials fall into a bottom blowing converter, and in the process, the feeding speed is controlled by adjusting the rotating speeds of a first feeding screw and a second feeding screw;
bottom blowing gas supply:
the first gas supply hole is communicated with natural gas or diesel oil or coal gas, and the natural gas or diesel oil or coal gas is sprayed into the bottom-blowing converter through the first gas supply hole; the second air supply hole is communicated with oxygen or oxygen-enriched air or air, and the oxygen or oxygen-enriched air or air is sprayed into the bottom blowing converter through the second air supply hole; and the third gas supply hole is communicated with air or nitrogen or inert gas, and the air or nitrogen or inert gas is sprayed into the bottom blowing converter through the third gas supply hole.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1) the hot copper matte is directly discharged into the converter through the obliquely arranged hot copper matte feeding pipe, so that the hoisting process of the steamed stuffed bun is reduced, and the environmental protection risk and the safety risk are reduced;
2) the cold material feeding port is combined with the flue, so that the structure of the furnace body is simplified; the structure of a cold material feeding channel, a cold material discharging channel and the like is arranged, so that the discharging is accurately regulated and controlled, the furnace body does not need to be rotated to an accident position, the labor intensity is reduced, and the problem of low-altitude pollution when the furnace body rotates is solved;
3) by arranging the structure with three layers of air holes and introducing mixed gas of different types, the rapid converting of 65-80% matte grade can be realized, the impurity removal efficiency is higher, and the conditions that the quality of a blast furnace and the crude copper does not reach the standard can not occur;
4) through the structure that sets up heat dissipation flue and compartment, preheat the cold burden, realized energy cyclic utilization, make the cold burden react rapidly in the bottom blowing converter simultaneously for converting speed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of the cold material feeding passage of the present invention;
FIG. 3 is a schematic cross-sectional view of the bottom blowing air supply nozzle of the present invention;
in the figure: a bottom blowing converter 1; a hot matte inlet 2; a flue gas outlet 3; a bottom blowing air supply nozzle 4; a hot matte feeding pipe 5; a flue 6; a cold charge inlet 7; a cold charge feed channel 8; a support table 9; a compartment 10; a cold charge feed opening 11; a cold burden blanking passage 12; a first blanking screw 13; a second feed screw 14; a cache storage 15; an insulating layer 16; a temperature sensor 17; a pressure sensor 18; a first sleeve 19; a second sleeve 20; a buffer interlayer 21; a first air supply hole 22; a second air supply hole 23; a third air supply hole 24; a heat dissipation flue 25.
Detailed Description
As shown in fig. 1-3:
example 1:
a high-grade matte converting rapid mass and heat transfer system comprises a bottom blowing converter 1, wherein a thermal matte inlet 2, a flue gas outlet 3 and a bottom blowing gas supply nozzle 4 are arranged on the bottom blowing converter 1;
the hot matte inlet 2 is arranged on the side wall of one end of the bottom blowing converter 1; the flue gas outlet 3 is arranged at the top of the bottom blowing converter 1; the bottom blowing gas supply nozzles 4 are arranged at the bottom of the bottom blowing converter 1 respectively;
a thermal state matte feeding pipe 5 is movably arranged on the thermal state matte inlet 2; the thermal state copper matte feeding pipe 5 is obliquely arranged, the thermal state copper matte inlet 2 is connected with the lower end of the thermal state copper matte feeding pipe 5, and the thermal state copper matte enters the bottom blowing converter 1 from the thermal state copper matte feeding pipe 5;
a flue 6 is movably arranged on the flue gas outlet 3; a cold material feeding hole 7 is formed in the side wall of the flue 6; a plurality of cold material feed inlets 7 are arranged; a cold material feeding channel 8 is arranged on the cold material feeding port 7; the cold material feeding channel 8 is obliquely arranged; the lower end of the cold material feeding channel 8 is connected with the cold material feeding port 7, and the material enters the bottom blowing converter 1 through the flue 6 from the cold material feeding channel 8.
Example 2:
in addition to example 1, a support table 9 is provided above the bottom blowing converter 1; a compartment 10 is arranged on the support platform 9; a heat dissipation flue 25 is communicated above the flue 6; the heat dissipation flue 25 is set to be a curve structure; the heat dissipation flue 25 is arranged inside the compartment 10, and the outlet of the heat dissipation flue 25 is arranged outside the compartment 10; the top of the compartment 10 is provided with a cold material feed opening 11; a cold material blanking channel 12 is arranged at the bottom of the cold material blanking port 11; the bottom of the cold material blanking channel 12 is connected with the cold material feeding channel 8.
Example 3:
on the basis of the embodiment 1-2, the cold burden blanking channel 12 comprises a first blanking screw 13, a second blanking screw 14 and a buffer bin 15; the top of the first blanking screw 13 is connected with the cold material blanking port 11, and the bottom of the first blanking screw is connected with the top of the buffer storage bin 15; the top of the second discharging screw 14 is connected with the bottom of the buffer storage bin 15, and the bottom of the second discharging screw 14 is connected with the cold material feeding channel 8.
Example 4:
on the basis of the embodiments 1 to 3, the cold material feeding channel 8 is arranged in a telescopic sleeve structure; an insulating layer 16 is arranged on the outer wall of the compartment 10; a temperature sensor 17 and a pressure sensor 18 are arranged on the inner wall of the compartment 10.
Example 5:
on the basis of the embodiments 1-4, the hot matte feeding pipe 5 comprises a first sleeve 19 and a second sleeve 20; the first sleeve 19 is sleeved inside the second sleeve 20; a buffer layer 21 is arranged between the first sleeve 19 and the second sleeve 20.
Example 6:
on the basis of examples 1-5, the first sleeve 19 is provided as a high temperature resistant nanoceramic material; the second sleeve 20 is made of high temperature resistant stainless steel.
Example 7:
in addition to the embodiments 1 to 6, the bottom-blowing air supply nozzle 4 is provided with a first air supply hole 22, a second air supply hole 23 and a third air supply hole 24; the first air supply hole 22 is arranged at the center of the cross section of the bottom blowing air supply nozzle 4; a plurality of second air supply holes 23 are uniformly arranged around the first air supply hole 22; the third air supply holes 24 are provided in a plurality and uniformly arranged around the second air supply holes 23.
Example 8:
on the basis of the embodiments 1-7, the first gas supply hole 22 is communicated with natural gas or diesel oil or coal gas; the second air supply hole 23 is communicated with oxygen or oxygen-enriched air or air; the third gas supply holes 24 are communicated with air or nitrogen or inert gas.
Example 9:
on the basis of the embodiments 1 to 8, the first gas supply hole 22 is communicated with natural gas; the second air supply holes 23 are communicated with oxygen; the third air supply holes 24 are communicated with air.
Example 10:
on the basis of examples 1-9, the method for rapidly transferring mass and heat in blowing of high-grade matte comprises the following steps:
flue gas heat recycling:
a curved heat dissipation flue 25 is arranged above the flue 6, the flue gas exchanges heat with the outside air through the heat dissipation flue 25, and a part of heat is transferred to the inside of the compartment 10; insulation 16 outside compartment 10 ensures that heat remains inside compartment 10; before feeding, the cold burden is preheated through the compartment to absorb heat, the cold burden enters the bottom blowing converter 1 after being heated to a certain temperature, the flue gas is subjected to heat dissipation and transfer, and the temperature of the flue gas exhausted from the heat dissipation flue 25 is reduced to a certain degree;
feeding materials:
the hot copper matte is in a liquid state during feeding and enters the bottom blowing converter 1 from a first sleeve 19 in the hot copper matte feeding pipe 5 under the action of gravity; the buffer interlayer 21 and the first sleeve 19 are arranged outside the second sleeve 20, so that the first sleeve 19 made of porcelain is protected while a certain heat preservation effect is achieved;
when cold materials are fed, firstly, the cold materials are stored in the buffer storage bin 15 through the cold material feed opening 11 and temporarily placed, the materials in the buffer storage bin 15 are preheated through the high temperature in the compartment 10, the materials enter the flue 6 through the cold material feed channel 8 under the action of gravity after being preheated to a certain temperature and then fall into the bottom blowing converter 1, and in the process, the feeding speed is controlled by adjusting the rotating speeds of the first feeding screw 13 and the second feeding screw 14;
bottom blowing gas supply:
the first gas supply holes 22 are communicated with natural gas or air or inert gas, and the natural gas or air or inert gas is sprayed into the bottom-blowing converter 1 through the first gas supply holes 22; the second gas supply holes 23 are communicated with natural gas or air or inert gas, and the natural gas or air or inert gas is sprayed into the bottom-blowing converter 1 through the second gas supply holes 23; the third gas supply holes 24 are communicated with natural gas, air or inert gas, and the natural gas, air or inert gas is sprayed into the bottom-blowing converter 1 through the third gas supply holes 24.
In the processes, the bottom blowing gas supply promotes the blowing speed of the bottom blowing converter 1 to be increased, and the flue gas discharged by blowing provides energy for preheating cold charge; the cold charge obtains energy through preheating, promotes converting efficiency in turn to form a thermal cycle, has reduced calorific loss.
Example 11:
the method for quickly transferring mass and heat in blowing of high-grade matte comprises the following steps:
flue gas heat recycling:
a curved heat dissipation flue 25 is arranged above the flue 6, the flue gas exchanges heat with the outside air through the heat dissipation flue 25, and a part of heat is transferred to the inside of the compartment 10; insulation 16 outside compartment 10 ensures that heat remains inside compartment 10; before feeding, the cold burden is preheated through the compartment to absorb heat, the cold burden enters the bottom blowing converter 1 after being heated to a certain temperature, the flue gas is subjected to heat dissipation and transfer, and the temperature of the flue gas exhausted from the heat dissipation flue 25 is reduced to a certain degree;
feeding materials:
the hot copper matte is in a liquid state during feeding and enters the bottom blowing converter 1 from a first sleeve 19 in the hot copper matte feeding pipe 5 under the action of gravity; the buffer interlayer 21 and the first sleeve 19 are arranged outside the second sleeve 20, so that the first sleeve 19 made of porcelain is protected while a certain heat preservation effect is achieved;
when cold materials are fed, firstly, the cold materials are stored in the buffer storage bin 15 through the cold material feed opening 11 and temporarily placed, the materials in the buffer storage bin 15 are preheated through the high temperature in the compartment 10, the materials enter the flue 6 through the cold material feed channel 8 under the action of gravity after being preheated to a certain temperature and then fall into the bottom blowing converter 1, and in the process, the feeding speed is controlled by adjusting the rotating speeds of the first feeding screw 13 and the second feeding screw 14;
bottom blowing gas supply:
the first gas supply hole 22 is communicated with natural gas, and the natural gas is sprayed into the bottom-blown converter 1 through the first gas supply hole 22; the second gas supply holes 23 are communicated with oxygen, and the oxygen is sprayed into the bottom-blowing converter 1 through the second gas supply holes 23; the third air supply holes 24 are communicated with air, and the air is injected into the bottom-blowing converter 1 through the third air supply holes 24.
Through this mode, matte converting efficiency and quality obtain very big promotion, and the following is the contrast data of new and old equipment when production:
as evident from the above data:
1) the hot copper matte is directly discharged into the converter through the obliquely arranged hot copper matte feeding pipe, so that the hoisting process of the steamed stuffed bun is reduced, and the environmental protection risk and the safety risk are reduced;
2) the cold material feeding port is combined with the flue, so that the structure of the furnace body is simplified; the structure of a cold material feeding channel, a cold material discharging channel and the like is arranged, so that the discharging is accurately regulated and controlled, the furnace body does not need to be rotated to an accident position, the labor intensity is reduced, and the problem of low-altitude pollution when the furnace body rotates is solved;
3) by arranging the structure with three layers of air holes and introducing mixed gas of different types, the rapid converting of 65-80% matte grade can be realized, the impurity removal efficiency is higher, and the conditions that the quality of a blast furnace and the crude copper does not reach the standard can not occur;
4) through the structure that sets up heat dissipation flue and compartment, preheat the cold burden, realized energy cyclic utilization, make the cold burden react rapidly in the bottom blowing converter simultaneously for converting speed.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A high-grade matte converting rapid mass and heat transfer system is characterized by comprising a bottom blowing converter (1), wherein a thermal matte inlet (2), a flue gas outlet (3) and a bottom blowing gas supply nozzle (4) are arranged on the bottom blowing converter (1);
the hot matte inlet (2) is arranged on the side wall of one end of the bottom blowing converter (1); the flue gas outlet (3) is arranged at the top of the bottom blowing converter (1); the bottom blowing gas supply nozzles (4) are arranged at the bottom of the bottom blowing converter (1);
a thermal state matte feeding pipe (5) is movably arranged on the thermal state matte inlet (2); the hot copper matte feeding pipe (5) is obliquely arranged, the hot copper matte inlet (2) is connected with the lower end of the hot copper matte feeding pipe (5), and the hot copper matte enters the bottom blowing converter (1) from the hot copper matte feeding pipe (5);
a flue (6) is movably arranged on the flue gas outlet (3); a cold material feeding hole (7) is formed in the side wall of the flue (6); a plurality of cold material feeding holes (7) are arranged; a cold material feeding channel (8) is arranged on the cold material feeding hole (7); the cold material feeding channel (8) is obliquely arranged; the lower end of the cold material feeding channel (8) is connected with the cold material feeding port (7), and the materials enter the bottom blowing converter (1) through the flue (6) from the cold material feeding channel (8).
2. A high-grade matte converting rapid mass and heat transfer system according to claim 1, characterized in that a supporting platform (9) is arranged above the bottom blowing converter (1); a compartment (10) is arranged on the supporting platform (9); a heat dissipation flue (25) is communicated above the flue (6); the heat dissipation flue (25) is set to be of a curve structure; the heat dissipation flue (25) is arranged inside the compartment (10), and the outlet of the heat dissipation flue (25) is arranged outside the compartment (10); the top of the compartment (10) is provided with a cold material feed opening (11); a cold material blanking channel (12) is arranged at the bottom of the cold material blanking port (11); the bottom of the cold material blanking channel (12) is connected with the cold material feeding channel (8).
3. A high-grade matte converting fast mass and heat transfer system according to claim 2, characterized in that said cold charge blanking channel (12) comprises a first blanking screw (13), a second blanking screw (14) and a buffer bin (15); the top of the first blanking screw (13) is connected with the cold material blanking port (11), and the bottom of the first blanking screw is connected with the top of the buffer bin (15); the top of the second discharging spiral (14) is connected with the bottom of the buffer bin (15), and the bottom of the second discharging spiral (14) is connected with the cold material feeding channel (8).
4. A high-grade matte converting rapid mass and heat transfer system according to claim 2, characterized in that the cold charge feed channel (8) is arranged in a telescopic sleeve structure; an insulating layer (16) is arranged on the outer wall of the compartment (10); the inner wall of the compartment (10) is provided with a temperature sensor (17) and a pressure sensor (18).
5. A high grade matte converting rapid mass and heat transfer system according to claim 2, characterized in that the hot matte feeding pipe (5) comprises a first sleeve (19) and a second sleeve (20); the first sleeve (19) is sleeved inside the second sleeve (20); a buffer interlayer (21) is arranged between the first sleeve (19) and the second sleeve (20).
6. A high-grade matte converting rapid mass and heat transfer system according to claim 5, characterized in that said first sleeve (19) is provided as a high temperature resistant nano ceramic material; the second sleeve (20) is made of high-temperature-resistant stainless steel.
7. The high-grade matte converting rapid mass and heat transfer system according to claim 2, wherein the bottom blowing air supply nozzle (4) is provided with a first air supply hole (22), a second air supply hole (23) and a third air supply hole (24); the first air supply hole (22) is arranged in the center of the cross section of the bottom blowing air supply nozzle (4); a plurality of second air supply holes (23) are uniformly arranged around the first air supply holes (22); the third air supply holes (24) are uniformly arranged around the second air supply holes (23).
8. The high-grade matte converting rapid mass and heat transfer system according to claim 7, wherein the first gas supply hole (22) is communicated with natural gas or diesel oil or coal gas; the second air supply hole (23) is communicated with oxygen or oxygen-enriched air or air; the third gas supply hole (24) is communicated with air or nitrogen or inert gas.
9. The high-grade matte converting rapid mass and heat transfer system according to claim 8, wherein the first gas supply hole (22) is communicated with natural gas; the second gas supply hole (23) is communicated with oxygen; the third air supply hole (24) is communicated with air.
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| CN202021198938.6U CN212404225U (en) | 2020-06-24 | 2020-06-24 | High-grade matte converting rapid mass and heat transfer system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111575499A (en) * | 2020-06-24 | 2020-08-25 | 易门铜业有限公司 | High-grade matte converting rapid mass and heat transfer system and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111575499A (en) * | 2020-06-24 | 2020-08-25 | 易门铜业有限公司 | High-grade matte converting rapid mass and heat transfer system and method thereof |
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