A new type of ice-nickel smelting furnace with mobile bed
The movable bed structure solves the problem of long furnace slag treatment time in traditional nickel matte smelting furnaces, enabling rapid processing and production recovery, and improving production efficiency and worker safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI YIJIA ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional nickel matte smelting furnaces are fixed to a reinforced concrete foundation, resulting in long maintenance periods and harsh working conditions for workers during furnace smelting, which seriously affects productivity and economic efficiency.
The movable bed structure, through vertical moving units and horizontal moving components, enables the bed to move in both vertical and horizontal directions. After disconnection, it can be placed on the ground to process furnace slag, shortening processing time and improving the working environment.
It significantly shortens the furnace solidification process, reduces labor costs, improves production efficiency, generates economic benefits, and improves the working environment for workers.
Smart Images
Figure CN224353544U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nickel matte smelting furnace technology, and in particular to a novel nickel matte smelting furnace employing a moving bed. Background Technology
[0002] The traditional non-ferrous metal matte smelting furnace consists of two main parts: the furnace body and the tuyeres. The furnace body is typically 4.5m-5m high, surrounded by a circulating water cooling jacket made of boiler steel plates. A charging bell is located at the top of the furnace body, while a tuyeres water jacket for supplying oxygen-containing air into the furnace is located at the bottom. The furnace body is supported by furnace columns and fixed to the tuyeres. The tuyeres are located below the furnace body and fixed to a reinforced concrete foundation. The tuyeres' casing is made of steel plates, and a molten pool is constructed inside the casing using refractory bricks to separate the matte from the slag. The depth of the molten pool is typically 800mm-1000mm. A slag discharge port is located at the front of the molten pool, and a matte discharge port is located at the bottom of the rear.
[0003] During the smelting of nickel matte, the prepared reducing agent (coke) and nickel-containing materials are added from the feed bell at the top of the furnace. Oxygen-containing air is sent into the furnace from the tuyeres of the water jacket at the bottom of the furnace to burn with the coke and generate high temperature to reduce and melt the nickel-containing materials. The molten nickel matte and slag flow from top to bottom into the main bed of the smelting furnace and settle and separate in the main bed. The slag flows out from the slag discharge port of the main bed and is flushed into water-quenched slag. When the nickel matte settled at the bottom of the main bed reaches a certain liquid level, it is discharged from the nickel matte outlet of the main bed to be cast into ingots.
[0004] The applicant has discovered at least the following technical problems in the existing technology: In this traditional nickel matte smelting furnace, since the furnace bed and furnace body are fixedly installed on a reinforced concrete foundation and furnace body column support, when furnace caking occurs inside the furnace, or due to changes in materials causing the furnace to become solidified, or due to other force majeure factors causing the furnace to shut down, the furnace temperature is as high as 1200 degrees Celsius or more. If such a fault is to be dealt with in a timely manner, water must first be sprayed inside the furnace to cool it down to a temperature that the human body can withstand before the lower water jacket at the rear end can be opened and removed. Only then can the furnace caking be broken up and the solidified material inside the furnace be slowly broken up and dug out manually. Each time such a fault is dealt with, it takes 7-8 days. The maintenance period is long, the temperature of breaking up the furnace caking is high, and the working environment for workers is harsh, which seriously affects the labor productivity and economic efficiency of the enterprise. Utility Model Content
[0005] The purpose of this invention is to provide a novel nickel matte smelting furnace employing a movable bed, thereby solving the technical problems existing in the prior art. The various technical effects of the preferred technical solutions among the many technical solutions provided by this invention are detailed below.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A novel nickel matte smelting furnace employing a movable bed includes a furnace body support, a furnace body unit, a vertical moving unit, and a movable bed. The furnace body unit and the vertical moving unit are both connected to the furnace body support. The vertical moving unit is movably connected to the movable bed. The vertical moving unit can drive the movable bed to move in the vertical direction. When the movable bed moves upward to its limit position, it can dock with the bottom of the furnace body unit. After the movable bed moves downward to its limit position, it can move in the horizontal direction.
[0008] Preferably, the movable bed includes a bed body and a moving component. The moving component is connected to the bottom of the bed body, and the vertical moving unit is connected to the bed body. The bed body can move horizontally via the moving component.
[0009] Preferably, the moving component includes a base plate bracket and wheels, the base plate bracket being connected to the bottom of the main body of the bed, and a plurality of wheels being connected to the bottom of the base plate bracket.
[0010] Preferably, the main body of the bed is provided with a plurality of auxiliary hoisting structures, which are movably connected to the vertical moving unit.
[0011] Preferably, the vertical moving unit is a hand-operated hoist, and each of the auxiliary hoisting structures is connected to one of the hand-operated hoists, and all the hand-operated hoists are connected to the furnace body support.
[0012] Preferably, it also includes a track, which is horizontally set on the ground below the mobile bed. When the mobile bed moves downward to its extreme position, the wheels on the mobile bed can be located inside the track and form a guiding contact with the track, and the mobile bed can move relative to the track by means of the wheels.
[0013] Preferably, it also includes a support top bar. When the movable bed moves upward to its limit position, the support top bar is placed on the ground below the movable bed, and its top can be lifted upward to support the bottom of the base plate bracket.
[0014] Preferably, the main body of the bed is provided with a molten pool, the front end of the molten pool is provided with a slag discharge port, and the rear bottom of the molten pool is provided with a nickel matte discharge port.
[0015] Preferably, the furnace body unit includes a furnace body main body, the upper part of which is provided with a feeding bell and a flue gas passage, and the lower part of which is provided with an air supply pipe.
[0016] Preferably, the system further includes a feeding bracket and a feeding device, wherein the feeding bracket is connected to the furnace body bracket and the feeding device is movably connected to the feeding bracket.
[0017] The beneficial effects of this utility model are as follows: the new nickel matte smelting furnace eliminates the reinforced concrete foundation of the traditional smelting furnace, connects the furnace body unit with the furnace body support, and designs the movable bed as a movable structure. The movable bed can rise and fall vertically with the assistance of the vertical moving unit, and can also move horizontally on its own.
[0018] Based on this, when the smelting furnace shuts down due to furnace stagnation, the moving bed can be lowered by the vertical moving unit before the high temperature inside the furnace solidifies. At the same time, the weight of the moving bed itself will automatically disconnect the moving bed from the furnace body unit and allow it to land on the ground. After disconnecting the vertical moving unit from the moving bed, the moving bed can be moved to a certain position on the ground to create sufficient working space under the furnace body unit.
[0019] At this time, the molten material in the furnace that has not yet fully solidified and is in a loose state at high temperature can fall from top to bottom to the ground, which can empty the furnace in a short time, create a ventilated space in the furnace, reduce the amount of furnace sludge that has solidified in the furnace, reduce the amount of furnace sludge removal work, and save the time spent on furnace sludge removal.
[0020] At the same time, workers can immediately spray water into the emptied furnace to cool it down, which will quickly cool down the slag that is stuck to the furnace wall. This will speed up the process of manually removing the slag, and the slag can be cleaned up in a short time, allowing production to resume.
[0021] At the same time, the movable bed can quickly remove high-temperature materials from the furnace sintering site, improving the working environment for workers.
[0022] Once the furnace sludge inside the furnace has been cleaned and the site has been cleared, the mobile bed can be moved back to its original position from the ground. After connecting the vertical moving unit, the mobile bed can be moved upwards to its limit position through the vertical moving unit, so that the mobile bed docks with the bottom of the furnace body unit, and production can be quickly resumed.
[0023] The new nickel matte smelting furnace can significantly shorten the time required to handle such faults, reduce labor costs, greatly improve production efficiency, and create good economic benefits. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a structural diagram of the movable bed of this utility model when it is moved upward to its limit position;
[0026] Figure 2 This is a structural diagram of the movable bed of this utility model when it moves a certain distance in the horizontal direction;
[0027] Figure 3 This is a detailed structural diagram of the movable bed of this utility model;
[0028] 1. Furnace body support frame in the diagram;
[0029] 2. Furnace body unit; 21. Furnace body main body; 211. Feed bell; 212. Flue gas passage; 213. Air supply duct;
[0030] 3. Vertical moving unit;
[0031] 4. Movable bed; 41. Bed body; 411. Auxiliary hoisting structure; 412. Molten pool; 413. Slag discharge port; 414. Matte discharge port; 42. Movable assembly; 421. Base plate bracket; 422. Wheels;
[0032] 5. Track;
[0033] 6. Support top bar;
[0034] 7. Feeding support;
[0035] 8. Feeding device. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0037] In the description of this utility model, it should be understood that the terms "center," "side," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] Reference Figures 1 to 3 This utility model provides a novel nickel matte smelting furnace employing a movable bed, comprising a furnace body support 1, a furnace body unit 2, a vertical moving unit 3, and a movable bed 4. The furnace body support 1 is fixed to the ground, and both the furnace body unit 2 and the vertical moving unit 3 are connected to the furnace body support 1. The vertical moving unit 3 is movably connected to the movable bed 4, and the vertical moving unit 3 can drive the movable bed 4 to move vertically. When the movable bed 4 moves upward to its limit position, it can dock with the bottom of the furnace body unit 2 to carry out smelting operations. After the movable bed 4 moves downward to its limit position, the connection between the movable bed 4 and the vertical moving unit 3 is released, and the movable bed 4 can move horizontally.
[0040] The new nickel matte smelting furnace eliminates the reinforced concrete foundation of the traditional smelting furnace, connects the furnace body unit 2 with the furnace body support 1, and designs the movable bed 4 as a movable structure. The movable bed 4 can rise and fall vertically with the assistance of the vertical moving unit 3, and can also move horizontally on its own.
[0041] Based on this, when the smelting furnace shuts down due to furnace stagnation, the moving bed 4 can be lowered by the vertical moving unit 3 before the high temperature inside the furnace solidifies. At the same time, the weight of the moving bed 4 itself will automatically disconnect the moving bed 4 from the furnace body unit 2 and allow it to fall to the ground. After disconnecting the vertical moving unit 3 from the moving bed 4, the moving bed 4 can be moved to a certain position on the ground to create sufficient working space under the furnace body unit 2.
[0042] At this time, the molten material in the furnace that has not yet fully solidified and is in a loose state at high temperature can fall from top to bottom to the ground, which can empty the furnace in a short time, create a ventilated space in the furnace, reduce the amount of furnace sludge that has solidified in the furnace, reduce the amount of furnace sludge removal work, and save the time spent on furnace sludge removal.
[0043] At the same time, workers can immediately spray water into the emptied furnace to cool it down, which will quickly cool down the slag that is stuck to the furnace wall. This will speed up the process of manually removing the slag, and the slag can be cleaned up in a short time, allowing production to resume.
[0044] At the same time, the movable bed 4 can also quickly move high-temperature materials away from the furnace sintering site, improving the working environment for workers.
[0045] Once the furnace sludge inside the furnace has been cleaned and the site has been tidied up, the movable bed 4 can be moved back to its original position from the ground. The vertical moving unit 3 can then be connected, and the movable bed 4 can be moved upward to its limit position via the vertical moving unit 3, so that the movable bed 4 can dock with the bottom of the furnace body unit 2, and production can be quickly resumed.
[0046] The new nickel matte smelting furnace can significantly shorten the time required to handle such faults, reduce labor costs, greatly improve production efficiency, and create good economic benefits.
[0047] As an optional implementation, the movable bed 4 includes a bed body 41 and a moving component 42. The moving component 42 is connected to the bottom of the bed body 41, and the vertical moving unit 3 is connected to the bed body 41. The bed body 41 can move horizontally via the moving component 42.
[0048] In this embodiment, the movable component 42 preferably includes a base plate bracket 421 and wheels 422. The base plate bracket 421 is connected to the bottom of the bed body 41 and serves as a support and connection. Several wheels 422 are connected to the bottom of the base plate bracket 421, and the bed body 41 can move horizontally via the wheels 422. Preferably, there are four wheels 422, which are connected at the four corners to make the force more even.
[0049] As an optional implementation, the main body 41 of the bed is provided with a plurality of auxiliary hoisting structures 411, which are movably connected to the vertical moving unit 3.
[0050] In this embodiment, the vertical moving unit 3 is preferably a hand chain hoist, and each auxiliary hoisting structure 411 is connected to a hand chain hoist. All the hand chain hoists are connected to the furnace body support 1.
[0051] In this embodiment, the hand chain hoist is preferably a hand chain hoist with a capacity of 20 tons or more, and the number of auxiliary lifting structures 411 is preferably four, located at the four corners respectively, and preferably adopts the structure of lifting lugs, which can form a lifting mechanism with the hand chain hoist.
[0052] As an optional implementation, a track 5 is also included. The track 5 is horizontally set on the ground below the movable bed 4. In this embodiment, the track 5 can be further embedded in the ground. The track 5 can guide the movement of the movable bed 4. When the movable bed 4 moves downward to the limit position, the traveling wheels 422 on the movable bed 4 can be located inside the track 5 and form a guiding contact with the track 5.
[0053] Based on this, after disconnecting the vertical moving unit 3 from the moving bed 4, the moving bed 4 can move relative to the track 5 via the traveling wheels 422. The moving bed 4 can move away from the bottom of the furnace body unit 2, so that there is enough working space under the furnace body unit 2, which is convenient for handling the furnace slag of the furnace body unit 2.
[0054] After processing, the movable bed 4 can be moved back from the track 5 to below the furnace body unit 2, and the vertical moving unit 3 can be reconnected. The vertical moving unit 3 will then drive the movable bed 4 upward to the limit position where it docks with the furnace body unit 2, and production operations can resume.
[0055] In this embodiment, the hand chain hoist is preferably able to suspend the movable bed 4 to a height of 1 meter above the ground, thereby ensuring that when the movable bed 4 lands, all the high-temperature furnace charge inside the furnace collapses to the ground, so that the high-temperature furnace charge inside the smelting furnace collapses.
[0056] Furthermore, it is preferable to be able to move the hot-temperature moving bed 4 more than 10 meters horizontally, so as to leave enough space to deal with furnace body slagging.
[0057] As an optional implementation, a support top bar 6 is also included. After the movable bed 4 moves upward to its limit position, the support top bar 6 is placed on the ground below the movable bed 4, and its top can be lifted upward to support the bottom of the bottom plate bracket 421. The support top bar 6 can further strengthen and fix the movable bed 4, making the docking structure between the furnace body and the movable bed 4 more stable.
[0058] When it is necessary to lower the height of the movable bed 4, the support top bar 6 can be removed.
[0059] As an optional implementation, the main body 41 of the bed is provided with a molten pool 412 inside, a slag discharge port 413 is provided at the front end of the molten pool 412, and a nickel matte discharge port 414 is provided at the bottom of the rear end of the molten pool 412.
[0060] As an optional implementation, the furnace body unit 2 includes a furnace body body 21, which is connected to the furnace body support 1. The furnace body support 1 is preferably reinforced to support the weight of the furnace body and the moving bed 4. The upper part of the furnace body body 21 is provided with a feeding bell 211 and a flue gas passage 212, and the lower part of the furnace body body 21 is provided with an air supply pipe 213.
[0061] As an optional implementation, it also includes a feeding support 7 and a feeding device 8. The feeding support 7 is connected to the furnace body support 1, and the feeding device 8 is movably connected to the feeding support 7. The feeding device 8 can move relative to the feeding support 7 to transport the material from the ground to the top of the furnace body unit 2 and feed it into the feeding bell 211.
[0062] In practical applications, after the nickel-containing materials are tested and analyzed, technicians calculate the appropriate valuable components and slag type by batching and then add reducing agent coke. The coke is fed into the feeding bell 211 using the feeding device 8. Oxygen-containing air is blown in from the air supply pipe 213 at the bottom of the furnace. The coke and oxygen-containing air are burned at a high temperature of over 1200 degrees Celsius, melting and reducing nickel and other valuable metals and gangue slag. This causes nickel and valuable metals to form matte, and gangue components to form slag. The molten matte and slag fall from the top of the furnace into the moving bed 4 of the smelting furnace for sedimentation and separation. The slag has a low density and floats on the top of the moving bed 4, flowing out through the slag discharge port 413 to form water-quenched slag. The matte containing valuable metals has a high density and settles at the bottom of the molten pool 412. When the liquid level of the matte containing valuable metals reaches a certain controlled height, the high-temperature liquid matte is discharged from the matte discharge port 414 at the bottom of the molten pool 412 to form ingots.
[0063] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A novel nickel matte smelting furnace employing a moving bed, characterized in that, The furnace body includes a furnace body support (1), a furnace body unit (2), a vertical moving unit (3), and a movable bed (4). The furnace body unit (2) and the vertical moving unit (3) are both connected to the furnace body support (1). The vertical moving unit (3) is movably connected to the movable bed (4). The vertical moving unit (3) can drive the movable bed (4) to move in the vertical direction. When the movable bed (4) moves upward to its limit position, it can dock with the bottom of the furnace body unit (2). After the movable bed (4) moves downward to its limit position, it can move in the horizontal direction.
2. The novel nickel matte smelting furnace employing a moving bed according to claim 1, characterized in that, The movable bed (4) includes a main body (41) and a moving component (42). The moving component (42) is connected to the bottom of the main body (41). The vertical moving unit (3) is connected to the main body (41). The main body (41) can move horizontally via the moving component (42).
3. The novel nickel matte smelting furnace employing a moving bed according to claim 2, characterized in that, The moving component (42) includes a base plate bracket (421) and wheels (422). The base plate bracket (421) is connected to the bottom of the main body of the bed (41), and a plurality of wheels (422) are connected to the bottom of the base plate bracket (421).
4. The novel nickel matte smelting furnace employing a moving bed according to claim 2, characterized in that, The main body (41) of the bed is provided with several auxiliary hoisting structures (411), which are movably connected to the vertical moving unit (3).
5. The novel nickel matte smelting furnace employing a moving bed according to claim 4, characterized in that, The vertical moving unit (3) is a hand chain hoist. Each of the auxiliary hoisting structures (411) is connected to one of the hand chain hoists, and all the hand chain hoists are connected to the furnace body support (1).
6. The novel nickel matte smelting furnace employing a moving bed according to claim 3, characterized in that, It also includes a track (5), which is horizontally set on the ground below the movable bed (4). When the movable bed (4) moves downward to its limit position, the traveling wheels (422) on the movable bed (4) can be located inside the track (5) and form a guiding contact with the track (5). The movable bed (4) can move relative to the track (5) through the traveling wheels (422).
7. The novel nickel matte smelting furnace employing a moving bed according to claim 3, characterized in that, It also includes a support top bar (6), which is placed on the ground below the mobile bed (4) after the mobile bed (4) moves upward to the limit position, and its top can be lifted upward to support the bottom of the base plate bracket (421).
8. The novel nickel matte smelting furnace employing a moving bed according to claim 2, characterized in that, The main body (41) of the bed is provided with a molten pool (412) inside, and a slag discharge port (413) is provided at the front end of the molten pool (412), and a nickel matte discharge port (414) is provided at the bottom of the rear end of the molten pool (412).
9. The novel nickel matte smelting furnace employing a moving bed according to claim 1, characterized in that, The furnace body unit (2) includes a furnace body body (21), the upper part of which is provided with a feeding bell (211) and a flue gas passage (212), and the lower part of which is provided with an air supply pipe (213).
10. The novel nickel matte smelting furnace employing a moving bed according to claim 1, characterized in that, It also includes a feeding bracket (7) and a feeding device (8), wherein the feeding bracket (7) is connected to the furnace body bracket (1), and the feeding device (8) is movably connected to the feeding bracket (7).