Top side combined type copper smelting furnace slag discharging system

Abstract

The utility model relates to the technical field of smelting furnaces, in particular to a top side combined type copper smelting furnace deslagging system. Comprising a smelting furnace body, a slag discharging opening is formed in the side portion of the smelting furnace body, a platform is arranged below the slag discharging opening, a rotary flow guiding mechanism is arranged on the platform, a chute mechanism is arranged between the slag discharging opening and the top of the rotary flow guiding mechanism, and a slag ladle transferring mechanism used in cooperation with the rotary flow guiding mechanism is arranged below the platform. Slag can be stably conveyed to the slag ladle transferring mechanisms below the platform along the inclined chute, the slag ladle transferring mechanisms are arranged in multiple sets, the slag is guided into the different slag ladle transferring mechanisms through the rotary flow guiding mechanism, then the slag is conveyed to the slag ladle hanging position through the slag ladle transferring mechanisms, the residence time of the slag in the conveying process is shortened, the solidification risk is reduced, and the slag conveying efficiency is improved. The vertical layered layout of the platform and the cinder ladle transfer mechanism makes full use of the height space of an original crane plant, the original cinder ladle lifting process can be adapted without modifying the structure of the crane plant, and the technical improvement cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to smelting furnace technical field, specifically is a top side composite copper smelting furnace slag removal system. BACKGROUND

[0002] Currently, the global copper smelting industry is facing the dual pressure of increasingly stringent environmental protection requirements and resource efficient utilization. With the advancement of the "double carbon" goal, the traditional copper smelting process needs to be upgraded to realize green and low-carbon transformation due to high energy consumption, low sulfur recovery rate, and smoke emission problems. When large-scale copper smelting plants use the "Ausmelt smelting-PS converter blowing" process, due to the old equipment and extensive process, the sulfur dioxide emission concentration fluctuates greatly, and the cost of treating the collected flue gas is high. In addition, the traditional smelting furnace slag treatment relies on the separation of copper slag by a settling electric furnace, which not only increases energy consumption and land occupation, but also causes heat loss and slag solidification risk due to repeated transfer of the melt, further increasing the difficulty of flue gas treatment.

[0003] Under this background, the industry has begun to explore intensive and continuous process improvement. Currently, copper smelting plants use multiple gun top-blown furnaces to replace the original four P-S converters, eliminating the need for a settling electric furnace. The copper smelting furnace directly separates slag and copper matte through a siphon slag discharge port and a copper discharge port, simplifying the process and reducing sulfur loss in intermediate links. However, after implementing the new process, the smelting furnace slag discharge port is more than 20 meters away from the crane workshop, with a significant drop. If the traditional chute is used to guide the molten slag to the slag ladle position in the crane workshop, the molten slag may solidify and block the channel during long-distance transportation due to heat loss, causing the slag removal operation to be interrupted, which in turn affects the stability of the flue gas collection system. This contradiction highlights the lack of adaptability of the existing slag removal system under long-distance and high-drop conditions, which has become a bottleneck restricting continuous production and environmental compliance. SUMMARY

[0004] The utility model aims at solving the above-mentioned problem, and provides a top side composite copper smelting furnace slag removal system suitable for long distances.

[0005] The utility model solves the problem by adopting the technical scheme of:

[0006] A top side composite copper smelting furnace slag removal system, comprising a smelting furnace main body, a slag discharge port is provided on the side of the smelting furnace main body, a platform is provided below the slag discharge port, a rotating flow guide mechanism is provided on the platform, a chute mechanism is provided between the slag discharge port and the top of the rotating flow guide mechanism, and a slag ladle transfer mechanism is provided below the platform and cooperates with the rotating flow guide mechanism.

[0007] The utility model adopting the above technical scheme has the prominent features compared with the prior art:

[0008] Through the combination design of chute mechanism and rotary flow guide mechanism, the molten slag can be stably conveyed along the inclined chute to the slag ladle transfer mechanism below the platform, the slag ladle transfer mechanism is provided with multiple groups, the molten slag is guided into different slag ladle transfer mechanisms through the rotary flow guide mechanism, and then the molten slag is conveyed to the slag ladle hoisting position through the slag ladle transfer mechanism, so that the residence time of the molten slag in the conveying process is reduced, the solidification risk is reduced, the vertical layered layout of the platform and the slag ladle transfer mechanism fully utilizes the original height space of the crane workshop, and the original slag ladle hoisting process can be adapted without modifying the crane workshop structure, so that the technical transformation cost is reduced.

[0009] As preferred, the further technical scheme of the utility model is:

[0010] Further, the rotary flow guide mechanism comprises a slag receiving barrel, one side of the bottom of the slag receiving barrel is connected with an inclined first chute, and the bottom of the slag receiving barrel is rotationally connected with the platform.

[0011] Further, the first chute comprises a first copper water jacket, a guard plate is arranged outside the first copper water jacket, and a roller in sliding connection with the platform is arranged at the bottom of the guard plate.

[0012] Further, heat preservation castable is arranged between the first copper water jacket and the guard plate.

[0013] Further, the slag receiving barrel shell is made of a shell type white steel water jacket, and firebricks are arranged at the bottom of the inner cavity of the shell type white steel water jacket.

[0014] Further, the chute mechanism comprises a vertical pipe and a three-circuit embedded copper chute, the vertical pipe is inserted into the upper portion of the slag receiving barrel, a fixing frame is arranged on the outer periphery of the vertical pipe, the copper chute is arranged obliquely and connected with the slag discharge port at the top, and the bottom of the copper chute is arranged on the top of the vertical pipe.

[0015] Further, the vertical pipe is composed of two semicircular second copper water jackets fixed by bolts.

[0016] Further, an arc-shaped third copper water jacket is hung at a position subjected to scouring in the vertical pipe.

[0017] Further, heat preservation cotton is arranged between the vertical pipe and the gap of the slag receiving barrel.

[0018] Further, the slag ladle transfer mechanism comprises a plurality of groups of parallel arranged guide rails, a moving trolley is in sliding connection with the guide rails, and a slag ladle is arranged on the moving trolley. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the utility model embodiment;

[0020] Figure 2 It is a top view structural schematic diagram of the utility model embodiment;

[0021] Marked in the figure: smelting furnace body 1, slag outlet 101, slag ladle 2, first chute 3, roller 4, refractory brick 5, vertical pipe 6, copper chute 7, third copper jacket 8, guide rail 9, moving trolley 10, slag ladle 11, platform 12. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with the embodiments below, the purpose is only in better understanding the utility model content, therefore, the example does not limit the protection scope of the utility model.

[0023] A top side composite copper smelting furnace slag system, including smelting furnace body 1, smelting furnace body 1 side is provided with slag outlet 101, and the outer portion of slag outlet 101 is surrounded by magnesia-chromite spinel refractory brick 5 and is surrounded by steel plate to form a framework outside the cofferdam, and platform 12 is arranged below slag outlet 101, and a rotating flow guide mechanism is arranged on platform 12, and a chute mechanism is arranged between slag outlet 101 and the top of the rotating flow guide mechanism, and a slag ladle 11 transfer mechanism cooperating with the rotating flow guide mechanism is arranged below platform 12.

[0024] Further, the rotating flow guide mechanism includes a slag receiving bucket 2, and the bottom of the slag receiving bucket 2 is connected with an inclined first chute 3 on one side, and the installation angle of the first chute 3 is between 3° and 5°, and the smooth flow of molten slag is realized by gravity, which not only avoids splashing caused by too fast flow rate, but also reduces the risk of local accumulation caused by too large angle, ensuring continuous and stable molten slag delivery, and the bottom of the slag receiving bucket 2 is rotatably connected with platform 12 through a rolling bearing, so that the slag receiving bucket 2 can be flexibly rotated to guide the molten slag to the slag ladle 11 transfer mechanism at different positions.

[0025] Further, the first chute 3 includes a first copper jacket, which can quickly transfer heat to prevent the molten slag from solidifying in the chute, and a guard plate is arranged outside the first copper jacket, and glass wool is arranged on the top of the first copper jacket, and a roller 4 is arranged on the bottom of the guard plate and is slidably connected with platform 12, which provides mechanical protection to prevent the first chute 3 from deforming or wearing. The bottom roller 4 is slidably connected with platform 12, which facilitates the adjustment of the position of the first chute 3, adapts to different slag ladle 11 transfer requirements, reduces friction resistance, ensures flexible movement, and a winch is installed on both sides of the guard plate as a rotating power source.

[0026] Further, heat insulating castable is arranged between the first copper jacket and the guard plate, which effectively reduces heat loss during molten slag delivery and maintains the fluidity of the molten slag; at the same time, it isolates the external environment from corroding and mechanically impacting the first copper jacket, prolonging the service life.

[0027] Further, the slag ladle 2 shell is made of shell type white steel water jacket, which has excellent high temperature oxidation resistance, and the inner cavity bottom is paved with firebrick 5, which not only protects the ladle body from direct impact of molten slag, but also delays the cooling speed of molten slag through heat preservation effect, prevents slag adhesion and caking, and the thickness of the firebrick 5 is 200mm~350mm.

[0028] Further, the chute mechanism includes a vertical pipe 6 and a three-loop buried pipe type copper chute 7, the installation angle of the copper chute 7 is 45°, the total length is controlled between 1.5m~2.5m, the temperature is controlled through the multi-loop cooling structure to prevent deformation due to high temperature, the bottom of the vertical pipe 6 is inserted into the upper part of the slag ladle 2, the bottom of the vertical pipe 6 is inserted into the slag ladle 2 by 100mm~200mm, avoiding splashing or leakage of molten slag, the distance between the outer wall of the vertical pipe 6 and the inner wall of the slag ladle 2 is between 10mm~15mm, the vertical pipe 6 is provided with a fixing frame, the copper chute 7 is inclined and connected with the slag discharge port 101 at the top, the bottom of the copper chute 7 is placed on the top of the vertical pipe 6, and the bottom of the copper chute 7 is provided with a support.

[0029] Further, the vertical pipe 6 is composed of two half-arc shaped second copper water jackets fixed by bolts, the inner diameter of the vertical pipe 6 is about 650mm, which is convenient for disassembly and maintenance, reduces the replacement cost, and the split design can adapt to high temperature expansion deformation, avoid the problem of weld cracking caused by thermal stress, and prolong the service life of the vertical pipe 6.

[0030] Further, an arc-shaped third copper water jacket 8 is hung at the position of the vertical pipe 6 which is subjected to scouring, forming a double protective layer, which significantly improves the anti-scouring and wear resistance; this structure can replace the damaged part alone, reducing the overall maintenance cost and ensuring continuous production.

[0031] Further, heat insulation cotton is arranged between the gap between the vertical pipe 6 and the slag ladle 2, which does not affect the rotating work of the slag ladle 2, further reduces heat loss, and maintains the temperature of the molten slag; at the same time, it prevents the outside cold air from entering, prevents the surface of the molten slag from caking, and ensures smooth flow.

[0032] Further, the slag ladle 11 transfer mechanism includes a plurality of groups of parallel arranged guide rails 9, a moving trolley 10 is slidably connected on the guide rail 9, the speed of the moving trolley 10 is controlled at 0.25m / s~0.4m / s, the slag ladle 11 is arranged on the moving trolley 10, and the volume of the slag ladle 11 is 12m³.

[0033] Through the combination design of chute mechanism and rotary flow guide mechanism, the molten slag can be stably conveyed along the inclined chute to the slag ladle 11 transfer mechanism under the platform 12. The slag ladle 11 transfer mechanism is provided with multiple groups. The molten slag is guided to different slag ladle 11 transfer mechanisms through the rotary flow guide mechanism, and then the molten slag is transported to the position of the slag ladle 11 through the slag ladle 11 transfer mechanism, so as to reduce the residence time of the molten slag in the conveying process, reduce the solidification risk, and fully utilize the original height space of the crane workshop through the vertical layered layout of the platform 12 and the slag ladle 11 transfer mechanism. Without modifying the structure of the crane workshop, the original slag ladle hoisting process can be adapted, and the technical transformation cost is reduced.

[0034] The above merely describes the preferred and feasible embodiments of the present application, and is not intended to limit the scope of the present application. Any equivalent changes made according to the content of the present application and the accompanying drawings are included in the scope of the present application.

Claims

1. A top-side combined copper smelting furnace slag discharge system, comprising a smelting furnace main body, a side of the smelting furnace main body is provided with a slag discharge port, characterized in that: A platform is arranged below the slag discharge port, a rotary flow guide mechanism is arranged on the platform, a chute mechanism is arranged between the slag discharge port and the top of the rotary flow guide mechanism, and a slag ladle transfer mechanism is arranged below the platform and cooperates with the rotary flow guide mechanism.

2. The top-side composite copper smelting furnace slag system according to claim 1, characterized in that: The rotary flow guide mechanism comprises a slag receiving barrel, and a first chute obliquely arranged on one side of the bottom of the slag receiving barrel.

3. The top-side composite copper smelting furnace slag system of claim 2, wherein: The first chute comprises a first copper water jacket, and a guard plate is arranged on the outside of the first copper water jacket.

4. The top-side composite copper smelting furnace slag system of claim 3, wherein: A heat preservation castable is arranged between the first copper water jacket and the guard plate.

5. The top-side composite copper smelting furnace slag system of claim 2, wherein: The slag receiving barrel shell is made of a shell type white steel water jacket, and a refractory brick is arranged on the bottom of the inner cavity of the shell.

6. The top-side composite copper smelting furnace slag system of claim 2, wherein: The chute mechanism comprises a vertical pipe and a three-loop embedded copper chute, the bottom of the vertical pipe is inserted into the upper part of the slag receiving barrel, a fixing frame is arranged on the outer periphery of the vertical pipe, the copper chute is obliquely arranged and connected to the top of the slag discharge port, and the bottom of the copper chute is arranged on the top of the vertical pipe.

7. The top-side composite copper smelting furnace slag system of claim 6, wherein: The vertical pipe is composed of two half-arc-shaped second copper water jackets fixed by bolts.

8. The top-side composite copper smelting furnace slag system of claim 6, wherein: An arc-shaped third copper water jacket is hung at the position of the vertical pipe that is subjected to scouring.

9. The top-side composite copper smelting furnace slag tapping system of claim 6, wherein: Heat preservation cotton is arranged between the vertical pipe and the gap of the slag receiving barrel.

10. The top-side composite copper smelting furnace slag system of claim 1, wherein: The slag ladle transfer mechanism comprises a plurality of groups of parallel arranged guide rails, a moving trolley is slidably connected to the guide rails, and a slag ladle is arranged on the moving trolley.

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