A rapid mass and heat transfer system and method for high-grade matte blowing

Abstract

A high-grade matte blowing rapid mass transfer and heat transfer system comprises a bottom-blown converter, the bottom-blown converter is provided with a hot matte inlet, a flue gas outlet and a bottom-blown air supply nozzle; the hot matte inlet is arranged on the side wall at one end of the bottom-blown converter; the flue gas outlet is arranged on the top of the bottom-blown converter; the bottom-blown air supply nozzles are provided in a plurality and are respectively arranged at the bottom of the bottom-blown converter; a hot matte feed pipe is movably provided on the hot matte inlet; the hot matte feed pipe is inclined, the hot matte inlet is connected to the lower end of the hot matte feed pipe, and the hot matte enters the bottom-blown converter through the hot matte feed pipe; a flue is movably provided on the flue gas outlet; a cold material feed port is provided on the side wall of the flue; a plurality of cold material feed ports are provided; a cold material feed channel is provided on the cold material feed port; the cold material feed channel is inclined; the lower end of the cold material feed channel is connected to the cold material feed port.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a rapid mass and heat transfer system and method for blowing high-grade matte. Background Art

[0002] The copper concentrate in China is gradually tending to be low-coarse and mixed, which is specifically manifested in the complex composition of raw materials, high content of magnesium and aluminum in high-melting-point substances, and low content of effective components such as copper, iron, and sulfur in the raw materials, which makes the copper concentrate difficult to handle. Bottom-blowing furnaces consume high energy consumption in the process of processing complex copper concentrates. The bottom-blowing furnace has a high desulfurization rate. In addition, the sulfur content entering the furnace is low, and the grade of the matte produced gradually increases. After the grade of matte increases, the amount of matte produced by the bottom-blowing furnace decreases accordingly. The converter requires 100-110 tons of hot matte for one blow, and it takes more than 4-5 hours for the bottom-blowing furnace to produce 100-110 tons of matte. Since the bottom-blowing furnace adopts the in-furnace separation technology, the furnace cannot store the amount of matte required for one blow of the converter. It takes 1.5-2 hours to discharge a bag of hot matte, about 25 tons, and the hot matte is discharged intermittently. Each time the hot matte is discharged, it is transferred into the converter through the buns for insulation and waits for the bottom-blowing furnace to produce more matte until the converter blowing conditions are met. During the waiting process, the heat of hot copper matte will gradually be lost. After a long waiting time, the converter starts to blow. According to the principle of copper matte blowing, the heat required for the converter blowing reaction mainly comes from the oxidation heat of iron. When the grade of copper matte is 70%-80%, the iron content is 4.5-1.6%. Compared with the blowing of low-grade copper matte, the reduction of iron content greatly reduces the reaction heat. The heat loss of hot copper matte and the less heat release of blowing lead to a lower melt temperature during the blowing process, which affects the removal of impurity elements during the blowing process. During the blowing process, the converter needs to be rotated, and cold materials and quartz sand are added to the furnace. A large amount of SO2 flue gas will overflow during the rotation process; in addition, the temperature of the discharged flue gas is very high, reaching 1000℃. This part of the flue gas carries a lot of energy. The traditional method is to cool the flue gas by installing a water cooling hood on the flue gas pipe.

[0003] At present, there are the following problems in the matte blowing process:

[0004] 1) When the converter is feeding and producing, it is restricted by the discharge of the smelting bottom blowing furnace process, and the waiting time is long. The feeding time of the first two packages is too long, about 2.5 hours, and the temperature is obviously low and the heat is insufficient.

[0005] 2) As the grade of matte increases, the blowing time per ton of copper is shortened, and the impurity removal capacity of the converter is reduced. The blowing time for a ton of copper with a grade of 60%-65% is 4-5 minutes, and the blowing time for a ton of copper with a grade of 70%-77% is 1.8-2.6 minutes. The shortened blowing time means that the oxidation reaction time of the impurity elements is shortened, resulting in a low impurity removal capacity of the converter, a high level of impurity elements in the crude copper, and it is difficult for the crude copper grade to reach 98.5%.

[0006] 3) The melt temperature is low, and the wind pressure at the converter tuyere rises rapidly, requiring manual frequent poking of the tuyere, increasing the labor intensity.

[0007] 4) If the melt temperature is too low during the blowing process, converter spraying may easily occur, which may even cause equipment shutdown in severe cases.

[0008] 5) When adding hot copper matte, cold material and quartz sand into the converter, the furnace mouth needs to be turned to the emergency position. During the rotation, the smoke in the furnace will escape outward, causing low-altitude pollution.

[0009] 6) Hot copper matte needs to be lifted by buns, and there is a possibility of hot copper matte smoke overflowing, causing low-altitude pollution.

[0010] 7) The water cooling system is prone to thermal fatigue damage under the action of alternating thermal stress, causing local rupture of the cooling water pipe, which in turn causes large-scale water leakage and leads to serious explosions. Summary of the invention

[0011] The purpose of the present invention is to avoid the shortcomings of the prior art and provide a high-grade matte blowing rapid mass transfer and heat transfer system and method thereof, so as to achieve rapid mass transfer and heat transfer and energy recycling.

[0012] To achieve the above object, the technical solution adopted by the present invention is:

[0013] A high-grade matte blowing rapid mass and heat transfer system comprises a bottom blowing converter, wherein the bottom blowing converter is provided with a hot matte inlet, a flue gas outlet, and a bottom blowing gas supply nozzle;

[0014] The hot copper matte inlet is arranged on a side wall of one end of the bottom-blown converter; the flue gas outlet is arranged on the top of the bottom-blown converter; the bottom-blown gas supply nozzles are arranged in a plurality and are respectively arranged at the bottom of the bottom-blown converter;

[0015] A hot copper matte feed pipe is movably arranged on the hot copper matte inlet; the hot copper matte feed pipe is arranged obliquely, the hot copper matte inlet is connected to the lower end of the hot copper matte feed pipe, and the hot copper matte enters the bottom-blown converter through the hot copper matte feed pipe;

[0016] A flue is movably arranged on the flue gas outlet; a cold material feed port is arranged on the side wall of the flue; a plurality of cold material feed ports are arranged; a cold material feed channel is arranged on the cold material feed port; the cold material feed channel is inclined; the lower end of the cold material feed channel is connected to the cold material feed port, and the material enters the bottom blowing converter from the cold material feed channel through the flue.

[0017] Furthermore, a support platform is arranged above the bottom-blown converter; a compartment is arranged on the support platform; a heat dissipation flue is arranged above the flue; the heat dissipation flue is arranged as a curved structure; the heat dissipation flue is arranged inside the compartment, and the outlet of the heat dissipation flue is arranged outside the compartment; a cold material discharge port is arranged at the top of the compartment; a cold material discharge channel is arranged at the bottom of the cold material discharge port; the bottom of the cold material discharge channel is connected to the cold material feed channel.

[0018] Furthermore, the cold material discharge channel includes a first discharge screw, a second discharge screw and a cache bin; the top of the first discharge screw is connected to the cold material discharge port, and the bottom is connected to the top of the cache bin; the top of the second discharge screw is connected to the bottom of the cache bin, and the bottom of the second discharge screw is connected to the cold material feed channel.

[0019] Furthermore, the cold material feed channel is configured as a telescopic sleeve structure.

[0020] Furthermore, a heat-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.

[0021] Furthermore, the hot copper matte feed pipe includes a first sleeve and a second sleeve; the first sleeve is sleeved inside the second sleeve; and a buffer layer is provided between the first sleeve and the second sleeve.

[0022] Furthermore, the first sleeve is made of high temperature resistant nano-ceramic material; the second sleeve is made of high temperature resistant stainless steel material.

[0023] Furthermore, the bottom blowing air supply nozzle is provided with a first air supply hole, a second air supply hole and a third air supply hole; the first air supply hole is arranged at the center of the cross section of the bottom blowing air supply nozzle; a plurality of second air supply holes are arranged, evenly arranged around the first air supply hole; a plurality of third air supply holes are arranged, evenly arranged around the second air supply hole.

[0024] Furthermore, the first air supply hole is connected to natural gas or diesel or coal gas; the second air supply hole is connected to oxygen or oxygen-enriched air or air; and the third air supply hole is connected to air or nitrogen or inert gas.

[0025] Furthermore, the first air supply hole is connected to natural gas; the second air supply hole is connected to oxygen; and the third air supply hole is connected to air.

[0026] The method for rapid mass and heat transfer in high-grade matte blowing comprises the following methods:

[0027] Flue gas heat recovery:

[0028] A curved heat dissipation flue is set above the flue. The flue gas exchanges heat with the outside air through the heat dissipation flue, and part of the heat is transferred to the inside of the compartment. The insulation layer outside the compartment ensures that the heat is retained inside the compartment. Before the cold material is fed in, it is first preheated in the compartment to absorb heat and then enter the bottom-blown converter after the temperature is raised to a certain level. The flue gas is transferred through the heat dissipation, and the temperature of the flue gas discharged from the heat dissipation flue is reduced to a certain extent.

[0029] Material feeding:

[0030] The hot copper matte is in liquid state when it is fed, and enters the bottom-blown converter from the first sleeve in the hot copper matte feed pipe under the action of gravity; a buffer layer and the first sleeve are arranged outside the second sleeve, which not only plays a certain role in heat preservation, but also plays a role in protecting the porcelain first sleeve;

[0031] When cold material is fed, the material at room temperature is first stored in the buffer bin through the cold material discharge port, and the material in the buffer bin is preheated by the high temperature in the compartment. After being preheated to a certain temperature, it enters the flue under the action of gravity through the cold material feeding channel, and then falls into the bottom-blown converter. In this process, the feeding speed is controlled by adjusting the rotation speed of the first and second feeding screws;

[0032] Bottom blowing air supply:

[0033] The first air supply hole is connected to natural gas, diesel or coal gas, and natural gas, diesel or coal gas is sprayed into the bottom blowing converter through the first air supply hole; the second air supply hole is connected to oxygen or oxygen-enriched air or air, and oxygen or oxygen-enriched air or air is sprayed into the bottom blowing converter through the second air supply hole; the third air supply hole is connected to air, nitrogen or inert gas, and air, nitrogen or inert gas is sprayed into the bottom blowing converter through the third air supply hole.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects:

[0035] 1) The hot copper matte is directly discharged into the converter through the inclined hot copper matte feeding pipe, which reduces the lifting process of the buns and reduces environmental and safety risks;

[0036] 2) The cold material feed port is combined with the flue to simplify the furnace structure; the cold material feed channel and the cold material discharge channel are set up to achieve precise control of the discharge. At the same time, there is no need to turn the furnace to the accident position, which reduces the labor intensity and eliminates the low-altitude pollution problem when the furnace rotates;

[0037] 3) By setting up a three-layer pore structure and introducing different types of mixed gases, rapid blowing of 65-80% matte grade can be achieved, with high impurity removal efficiency, and there will be no situation where the furnace is sprayed and the quality of crude copper does not meet the standards;

[0038] 4) By setting up the heat dissipation flue and compartment structure, the cold material is preheated to achieve energy recycling. At the same time, the cold material can react quickly in the bottom blowing converter, thereby accelerating the blowing rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the cold material feed channel of the present invention;

[0041] Figure 3 This is a schematic diagram of the cross-sectional structure of the bottom blowing air supply nozzle of the present invention;

[0042] In the figure: bottom-blown converter 1; hot matte inlet 2; flue gas outlet 3; bottom-blown air supply nozzle 4; hot matte feed pipe 5; flue 6; cold material feed port 7; cold material feed channel 8; support platform 9; compartment 10; cold material discharge port 11; cold material discharge channel 12; first discharge screw 13; second discharge screw 14; buffer bin 15; insulation layer 16; temperature sensor 17; pressure sensor 18; first sleeve 19; second sleeve 20; buffer interlayer 21; first air supply hole 22; second air supply hole 23; third air supply hole 24; heat dissipation flue 25. DETAILED DESCRIPTION

[0043] like Figure 1-3 As shown:

[0044] Embodiment 1:

[0045] A high-grade matte blowing rapid mass and heat transfer system comprises a bottom blowing converter 1, wherein the bottom blowing converter 1 is provided with a hot matte inlet 2, a flue gas outlet 3, and a bottom blowing gas supply nozzle 4;

[0046] The hot copper matte inlet 2 is arranged on a side wall of one end of the bottom-blown converter 1; the flue gas outlet 3 is arranged on the top of the bottom-blown converter 1; the bottom-blown gas supply nozzles 4 are arranged in a plurality and are respectively arranged at the bottom of the bottom-blown converter 1;

[0047] A hot copper matte feed pipe 5 is movably arranged on the hot copper matte inlet 2; the hot copper matte feed pipe 5 is arranged obliquely, and the hot copper matte inlet 2 is connected to a lower end of the hot copper matte feed pipe 5, and the hot copper matte enters the bottom-blown converter 1 through the hot copper matte feed pipe 5;

[0048] A flue 6 is movably arranged on the flue gas outlet 3; a cold material feed port 7 is arranged on the side wall of the flue 6; a plurality of cold material feed ports 7 are arranged; a cold material feed channel 8 is arranged on the cold material feed port 7; the cold material feed channel 8 is inclined; the lower end of the cold material feed channel 8 is connected to the cold material feed port 7, and the material enters the bottom blowing converter 1 from the cold material feed channel 8 through the flue 6.

[0049] Embodiment 2:

[0050] On the basis of Example 1, a support platform 9 is arranged above the bottom-blown converter 1; a compartment 10 is arranged on the support platform 9; a heat dissipation flue 25 is arranged above the flue 6; the heat dissipation flue 25 is arranged as a curved 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; a cold material discharge port 11 is arranged at the top of the compartment 10; a cold material discharge channel 12 is arranged at the bottom of the cold material discharge port 11; the bottom of the cold material discharge channel 12 is connected to the cold material feed channel 8.

[0051] Embodiment 3:

[0052] Based on Examples 1-2, the cold material feeding channel 12 includes a first feeding screw 13, a second feeding screw 14 and a buffer bin 15; the top of the first feeding screw 13 is connected to the cold material feeding port 11, and the bottom is connected to the top of the buffer bin 15; the top of the second feeding screw 14 is connected to the bottom of the buffer bin 15, and the bottom of the second feeding screw 14 is connected to the cold material feed channel 8.

[0053] Embodiment 4:

[0054] On the basis of Examples 1-3, the cold material feed channel 8 is configured as a telescopic sleeve structure; an insulation layer 16 is provided on the outer wall of the compartment 10; and a temperature sensor 17 and a pressure sensor 18 are provided on the inner wall of the compartment 10.

[0055] Embodiment 5:

[0056] On the basis of Examples 1-4, the hot copper matte feed pipe 5 includes a first sleeve 19 and a second sleeve 20; the first sleeve 19 is sleeved inside the second sleeve 20; and a buffer interlayer 21 is provided between the first sleeve 19 and the second sleeve 20.

[0057] Embodiment 6:

[0058] On the basis of Embodiments 1-5, the first sleeve 19 is configured to be made of high temperature resistant nano-ceramic material; and the second sleeve 20 is configured to be made of high temperature resistant stainless steel material.

[0059] Embodiment 7:

[0060] On the basis of Examples 1-6, 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 the second air supply holes 23 are arranged, which are evenly arranged around the first air supply hole 22; a plurality of the third air supply holes 24 are arranged, which are evenly arranged around the second air supply hole 23.

[0061] Embodiment 8:

[0062] Based on Examples 1-7, the first air supply hole (22) is connected to natural gas or diesel or coal gas; the second air supply hole (23) is connected to oxygen or oxygen-enriched air or air; and the third air supply hole (24) is connected to air or nitrogen or inert gas.

[0063] Embodiment 9:

[0064] Based on Example 1-8, the first air supply hole (22) is connected to natural gas; the second air supply hole (23) is connected to oxygen; and the third air supply hole (24) is connected to air.

[0065] Embodiment 10:

[0066] Based on Examples 1-9, the method for rapid mass and heat transfer in high-grade matte blowing includes the following method:

[0067] Flue gas heat recovery:

[0068] 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 part of the heat is transferred to the inside of the compartment 10. The insulation layer 16 outside the compartment 10 ensures that the heat is retained inside the compartment 10. Before the cold material is fed in, it is first preheated by the compartment to absorb heat and then enter the bottom-blown converter 1 after the temperature is raised to a certain level. The flue gas is discharged from the heat dissipation flue 25 through the heat dissipation transfer, and the temperature of the flue gas is reduced to a certain extent.

[0069] Material feeding:

[0070] The hot copper matte is in liquid state when it is fed, and enters the bottom-blown converter 1 through the first sleeve 19 in the hot copper matte feed pipe 5 under the action of gravity; the buffer layer 21 and the first sleeve 19 are arranged outside the second sleeve 20, which plays a certain role in heat preservation and protects the porcelain first sleeve 19;

[0071] When cold material is fed, the material at room temperature is first stored in the buffer bin 15 through the cold material discharge port 11 for temporary storage, and the material in the buffer bin 15 is preheated by the high temperature in the compartment 10. After being preheated to a certain temperature, the material enters the flue 6 through the cold material feeding channel 8 under the action of gravity, and then falls into the bottom-blown converter 1. In this process, the feeding speed is controlled by adjusting the rotation speed of the first discharge screw 13 and the second discharge screw 14;

[0072] Bottom blowing air supply:

[0073] The first gas supply hole 22 is connected to natural gas, air or inert gas, and natural gas, air or inert gas is sprayed into the bottom-blown converter 1 through the first gas supply hole 22; the second gas supply hole 23 is connected to natural gas, air or inert gas, and natural gas, air or inert gas is sprayed into the bottom-blown converter 1 through the second gas supply hole 23; the third gas supply hole 24 is connected to natural gas, air or inert gas, and natural gas, air or inert gas is sprayed into the bottom-blown converter 1 through the third gas supply hole 24.

[0074] In the above processes, the bottom blowing air supply accelerates the blowing speed of the bottom blowing converter 1, and the exhaust gas from blowing provides energy for preheating the cold material; the cold material obtains energy after preheating, which in turn promotes the blowing efficiency, thus forming a heat cycle and reducing heat loss.

[0075] Embodiment 11:

[0076] The method of rapid mass and heat transfer in high-grade matte blowing includes the following methods:

[0077] Flue gas heat recovery:

[0078] 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 part of the heat is transferred to the inside of the compartment 10. The insulation layer 16 outside the compartment 10 ensures that the heat is retained inside the compartment 10. Before the cold material is fed in, it is first preheated by the compartment to absorb heat and then enter the bottom-blown converter 1 after the temperature is raised to a certain level. The flue gas is discharged from the heat dissipation flue 25 through the heat dissipation transfer, and the temperature of the flue gas is reduced to a certain extent.

[0079] Material feeding:

[0080] The hot copper matte is in liquid state when it is fed, and enters the bottom-blown converter 1 through the first sleeve 19 in the hot copper matte feed pipe 5 under the action of gravity; the buffer layer 21 and the first sleeve 19 are arranged outside the second sleeve 20, which plays a certain role in heat preservation and protects the porcelain first sleeve 19;

[0081] When cold material is fed, the material at room temperature is first stored in the buffer bin 15 through the cold material discharge port 11 for temporary storage, and the material in the buffer bin 15 is preheated by the high temperature in the compartment 10. After being preheated to a certain temperature, the material enters the flue 6 through the cold material feeding channel 8 under the action of gravity, and then falls into the bottom-blown converter 1. In this process, the feeding speed is controlled by adjusting the rotation speed of the first discharge screw 13 and the second discharge screw 14;

[0082] Bottom blowing air supply:

[0083] The first air supply hole 22 is connected to natural gas, and natural gas is sprayed into the bottom-blown converter 1 through the first air supply hole 22; the second air supply hole 23 is connected to oxygen, and oxygen is sprayed into the bottom-blown converter 1 through the second air supply hole 23; the third air supply hole 24 is connected to air, and air is sprayed into the bottom-blown converter 1 through the third air supply hole 24.

[0084] Through this method, the efficiency and quality of matte blowing are greatly improved. The following table shows the comparison data of the new and old equipment during production:

[0085]

[0086] The above data clearly proves that:

[0087] 1) The hot copper matte is directly discharged into the converter through the inclined hot copper matte feeding pipe, which reduces the lifting process of the buns and reduces environmental and safety risks;

[0088] 2) The cold material feed port is combined with the flue to simplify the furnace structure; the cold material feed channel and the cold material discharge channel are set up to achieve precise control of the discharge. At the same time, there is no need to turn the furnace to the accident position, which reduces the labor intensity and eliminates the low-altitude pollution problem when the furnace rotates;

[0089] 3) By setting up a three-layer pore structure and introducing different types of mixed gases, rapid blowing of 65-80% matte grade can be achieved, with high impurity removal efficiency, and there will be no situation where the furnace is sprayed and the quality of crude copper does not meet the standards;

[0090] 4) By setting up the heat dissipation flue and compartment structure, the cold material is preheated to achieve energy recycling. At the same time, the cold material can react quickly in the bottom blowing converter, thereby accelerating the blowing rate.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-grade matte blowing rapid mass and heat transfer system, characterized in that: It comprises a bottom-blowing converter (1), wherein the bottom-blowing converter (1) is provided with a hot copper matte inlet (2), a flue gas outlet (3), and a bottom-blowing gas supply nozzle (4); The hot copper matte inlet (2) is arranged on a side wall at one end of the bottom-blown converter (1); the flue gas outlet (3) is arranged on the top of the bottom-blown converter (1); a plurality of bottom-blown gas supply nozzles (4) are arranged, each of which is arranged at the bottom of the bottom-blown converter (1); A hot copper matte feed pipe (5) is movably arranged on the hot copper matte inlet (2); the hot copper matte feed pipe (5) is arranged obliquely, the hot copper matte inlet (2) is connected to the lower end of the hot copper matte feed pipe (5), and the hot copper matte enters the bottom-blown converter (1) through the hot copper matte feed pipe (5); A flue (6) is movably provided on the flue gas outlet (3); a cold material feed port (7) is provided on the side wall of the flue (6); a plurality of cold material feed ports (7) are provided; a cold material feed channel (8) is provided on the cold material feed port (7); the cold material feed channel (8) is inclined; a lower end of the cold material feed channel (8) is connected to the cold material feed port (7), and the material enters the bottom-blown converter (1) from the cold material feed channel (8) through the flue (6); A support platform (9) is arranged above the bottom-blown converter (1); a compartment (10) is arranged on the support platform (9); a heat dissipation flue (25) is arranged above the flue (6); the heat dissipation flue (25) is arranged in a curved structure; the heat dissipation flue (25) is arranged inside the compartment (10), and an outlet of the heat dissipation flue (25) is arranged outside the compartment (10); a cold material discharge port (11) is arranged at the top of the compartment (10); a cold material discharge channel (12) is arranged at the bottom of the cold material discharge port (11); the bottom of the cold material discharge channel (12) is connected to the cold material feed channel (8); The cold material discharge channel (12) comprises a first discharge screw (13), a second discharge screw (14) and a buffer bin (15); the top of the first discharge screw (13) is connected to the cold material discharge port (11), and the bottom is connected to the top of the buffer bin (15); the top of the second discharge screw (14) is connected to the bottom of the buffer bin (15), and the bottom of the second discharge screw (14) is connected to the cold material feed channel (8); The cold material feed channel (8) is configured as a telescopic sleeve structure; a heat-insulating layer (16) is provided on the outer wall of the compartment (10); and a temperature sensor (17) and a pressure sensor (18) are provided on the inner wall of the compartment (10); The hot copper matte feed 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 provided between the first sleeve (19) and the second sleeve (20); The first sleeve (19) is made of a high-temperature resistant nano-ceramic material; the second sleeve (20) is made of a high-temperature resistant stainless steel material; 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 the second air supply holes (23) are arranged, evenly arranged around the first air supply hole (22); a plurality of the third air supply holes (24) are arranged, evenly arranged around the second air supply hole (23); The first air supply hole (22) is connected to natural gas, diesel or coal gas; the second air supply hole (23) is connected to oxygen, oxygen-enriched air or air; the third air supply hole (24) is connected to air, nitrogen or inert gas; The first air supply hole (22) is connected to natural gas; the second air supply hole (23) is connected to oxygen; and the third air supply hole (24) is connected to air.

2. The method of a high-grade matte blowing rapid mass and heat transfer system according to claim 1, characterized in that: The following methods are included: Flue gas heat recovery: A curved heat dissipation flue (25) is provided above the flue (6). The flue gas exchanges heat with the outside air through the heat dissipation flue (25), and a portion of the heat is transferred to the interior of the compartment (10). The heat insulation layer (16) outside the compartment (10) ensures that the heat is retained in the compartment (10). Before the cold material is fed in, it is first preheated by the compartment to absorb heat and then enter the bottom-blown converter (1) after being raised to a certain temperature. The flue gas is discharged from the heat dissipation flue (25) through heat dissipation transfer, and the temperature of the flue gas is reduced to a certain extent. Material feeding: The hot copper matte is in liquid state when it is fed, and enters the bottom-blown converter (1) through the first sleeve (19) in the hot copper matte feeding pipe (5) under the action of gravity; a buffer layer (21) and the first sleeve (19) are arranged outside the second sleeve (20), which not only plays a certain role in heat preservation, but also plays a protective role for the porcelain first sleeve (19); When cold material is fed, the material at room temperature is first stored in the buffer bin (15) through the cold material discharge port (11) for temporary storage, and the material in the buffer bin (15) is preheated by the high temperature in the compartment (10). After being preheated to a certain temperature, the material enters the flue (6) through the cold material feed channel (8) under the action of gravity, and then falls into the bottom-blown converter (1). During this process, the speed of feeding is controlled by adjusting the rotation speed of the first discharge screw (13) and the second discharge screw (14); Bottom blowing air supply: The first air supply hole (22) is connected to natural gas or diesel or coal gas, and the natural gas or diesel or coal gas is sprayed into the bottom blowing converter (1) through the first air supply hole (22); the second air supply hole (23) is connected to oxygen or oxygen-enriched air or air, and the oxygen or oxygen-enriched air or air is sprayed into the bottom blowing converter (1) through the second air supply hole (23); the third air supply hole (24) is connected to air or nitrogen or inert gas, and the air or nitrogen or inert gas is sprayed into the bottom blowing converter (1) through the third air supply hole (24).

Images