Siphon channel structure of side-blown reduction furnace
By optimizing the siphon channel structure of the side-blown reduction furnace, extending the siphon channel, and connecting the eye bricks with the lead chute, combined with temperature sensors and adjustable plugs, the problem of difficult siphon burners was solved, improving furnace start-up efficiency and equipment safety.
Patent Information
- Application Number
- CN202423200521.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing side-blown reduction furnaces have difficulties in handling the siphon channel during shutdown, and the firing port takes a long time and is prone to damaging refractory bricks, affecting the efficiency and safety of start-up.
The siphon channel structure was optimized, the siphon channel was extended to 1500mm, the eye brick was connected to the lead chute, a 20° angle was adopted, a temperature sensor and a camera were equipped, and an adjustable plug was used to control the flow rate, eliminating the siphon well.
It simplifies the siphon burner process, reduces the consumption of manpower and materials, improves furnace start-up efficiency, ensures the operational safety of the metallurgical furnace, increases the furnace start-up rate, reduces the labor intensity and start-up time of workers, reduces the difficulty of operation, reduces the labor intensity and labor costs of workers, improves operational efficiency, reduces the labor intensity and labor costs of workers, and improves the safety of equipment.
Smart Images
Figure CN223691525U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model discloses a laying method of siphon of side-blown reduction furnace belongs to non-ferrous metal smelting technical field, concretely is a siphon structure of side-blown reduction furnace. BACKGROUND
[0002] The side-blown reduction furnace is the mainstream equipment for processing lead-rich slag, has the characteristics of large scale, adding high-temperature melt and intermittent reduction operation, and has obvious advantages in energy consumption and technical and economic indicators. At present, the reduction of rich useful metal slag at home and abroad mainly adopts the side-blown reduction furnace.
[0003] The side-blown reduction furnace needs to be started before the production is recovered after the overhaul, and the siphon burning is an important link that cannot be missed, and the speed and quality of the siphon burning seriously affect whether the furnace can run safely and stably after being put into production. At present, the treatment method of the siphon of the side-blown reduction furnace when the furnace is stopped is still to form a blockage by the natural cooling of the solution in the siphon. Due to the existence of the siphon well in the original siphon structure, the siphon is usually not extended to the position that the operator can see, and the short siphon hole is submerged by the metal liquid in the siphon well. In the process of siphon burning, it is difficult for the worker to accurately find the siphon hole, and the burning time of the personnel is lengthened, and it is easy to burn the refractory bricks of the siphon in the case that the siphon hole cannot be seen. The process of siphon burning not only consumes a lot of manpower and material resources, reduces the running rate of the device, and once the equipment is damaged, the shutdown time is infinitely extended, which has a great impact on the entire smelting system. SUMMARY
[0004] In order to overcome the problems in the background art, the utility model provides a siphon structure of side-blown reduction furnace, which optimizes the siphon structure of the reduction furnace in the smelting process combining the Isa furnace and the reduction furnace, can effectively solve various problems such as difficulty in siphon burning, long time consumption and easy burning of furnace bricks when the side-blown reduction furnace is started, and the setting of the siphon eye brick can effectively control the height of the metal (lead, copper, etc.) molten pool in the reduction furnace to avoid the siphon slagging event caused by the too high slag layer. Compared with the original siphon structure, the labor intensity of the worker is small, the labor cost is low, and the operation difficulty is small.
[0005] To achieve the above-mentioned purpose, the utility model realizes through the following technical scheme:
[0006] A siphon structure of side-blown reduction furnace, comprising a siphon and an eye brick, one end of the siphon is communicated with the bottom of the side-blown reduction furnace, the lower layer in the reduction furnace is lead liquid, the upper layer is slag layer, the other end of the siphon is provided with an eye brick, and the other side of the eye brick is communicated with the lead spout of the side-blown reduction furnace.
[0007] Further, the eye brick is provided with a center hole, and a plurality of hole plugs matched with the center hole of the eye brick are designed, and different hole plugs can control the flow.
[0008] Further, the angle between the center axis of the siphon and the bottom of the side-blown reduction furnace is 20°.
[0009] Further, the siphon is extended to 1500mm in length and the diameter of the siphon is 100mm when the siphon well is cancelled in the siphon masonry.
[0010] Further, the angle between the center line of the eye brick center hole and the lead channel is 10-15°.
[0011] Further, a support is arranged on the top of the eye brick, a temperature sensor is arranged on the support, and the probe of the temperature sensor is directed to the siphon port.
[0012] Further, the height of the lead liquid layer in the reduction furnace is 450mm-650mm.
[0013] Further, the height of the slag layer in the reduction furnace is 1800mm-2300mm.
[0014] Further, the height of the center of the eye brick center hole of the siphon and the bottom of the reduction furnace is 950mm.
[0015] Further, the outlet of the eye brick center hole of the siphon is connected with the lead channel, and the lead channel is used for guiding the crude metal (lead, copper, etc.).
[0016] The original siphon structure is changed, the end of the siphon outlet of the side-blown reduction furnace is extended, and the operator can easily find the channel, so that the position is determined during the burning process; the center of the siphon and the bottom of the side-blown reduction furnace form an angle of 20°, the worker pushes the oxygen pipe according to the angle after determining the position of the siphon hole, so that the refractory brick is not easily burned, the original siphon dam is replaced by the eye brick with a hole, the height of the eye brick can be sealed according to the height of the lead bath in the furnace, the height of the bath in the furnace can be easily controlled by the eye brick, and the operation safety of the metallurgical furnace is effectively ensured.
[0017] The utility model greatly reduces the consumption of manpower and material resources in the process of siphon burning, improves the furnace operation rate of metallurgical furnace, shortens the furnace opening time and improves the operation efficiency. ACCURACY OF DRAWINGS
[0018] Figure 1 is the siphon structure schematic view of the side-blown reduction furnace of the utility model;
[0019] Among them: 1- siphon, 2- eye brick, 3- lead liquid, 4- slag layer, 5- lead channel, H- eye brick center hole distance bottom height, H1- lead bath height, H2- slag bath height, L- siphon length. DETAILED DESCRIPTION
[0020] To make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below with reference to the drawings and in combination with specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0021] Embodiment 1
[0022] As Figure 1 shown, a siphon structure of a side-blown reduction furnace, comprising a siphon 1 and a eye brick 2, one end of the siphon 1 is communicated with the bottom of the side-blown reduction furnace, the lower layer in the side-blown reduction furnace is lead liquid 3, and the upper layer is slag layer 4, the other end of the siphon 1 is provided with the eye brick 2, the other side of the eye brick 2 is communicated with a lead channel 5 of the side-blown reduction furnace, the lead channel is used for lead drainage, the included angle between the central axis of the siphon 1 and the bottom of the side-blown reduction furnace is 20°, the length L of the siphon 1 is extended to 1500mm, the diameter of the siphon is 100mm, the height of the lead liquid layer 3 in the side-blown reduction furnace is 450mm-650mm, the height of the slag layer 4 in the side-blown reduction furnace is 1800mm-2300mm, the eye brick 2 is provided with a center hole, the included angle between the center line of the center hole of the eye brick 2 and the lead channel 5 is 10-15°, and the height between the center of the center hole of the eye brick 2 and the bottom of the side-blown reduction furnace is 950mm.
[0023] In this embodiment, a support is arranged on the top of the eye brick 2, a temperature sensor is arranged on the support, the probe of the temperature sensor is directed to the siphon port, and the temperature in the siphon port is monitored; a camera can also be arranged on the support to monitor the siphon port in real time; the temperature sensor and the camera can be wirelessly connected with an external controller, temperature and image data are fed back to the controller in real time, and the controller receives the temperature and image data in real time and stores the data.
[0024] In this embodiment, a plurality of hole plugs matched with the center hole of the eye brick 2 are also designed, one end of the hole plug is an airplane-shaped handle, the other end is a cone with different diameters, different diameter hole plugs can be inserted according to the need of siphon flow, and then the flow is adjusted, or the center hole of the eye brick 2 can be completely plugged, and the hole plug is made of high-temperature resistant material.
[0025] Embodiment 2
[0026] According to the structure of the embodiment 1, the siphon channel is built at an angle of 20° with the bottom of the reduction furnace during the building of the furnace bricks, the siphon channel has a diameter of 100 mm, the total length L of the siphon channel is 1500 mm, the eye brick 2 adjacent to the siphon channel has a diameter of 100 mm, the vertical distance H between the center of the hole of the eye brick 2 and the bottom of the furnace is 950 mm, the rear end of the eye brick 2 is normally built with a lead channel, and after the furnace bricks are built according to the above method, in order to ensure that the lead liquid flows out of the siphon channel smoothly, the molten lead liquid is supplemented into the furnace through the siphon channel by a lead pump when the side-blown reduction furnace is fired and the furnace is warmed up, the supplement height H1 of the lead liquid is controlled to be 500-550 mm (the amount of lead liquid is 50-60 t), the lead liquid is supplemented completely, the lead-rich slag is put into the reduction furnace to establish a molten pool through the isasmelt furnace, the height H2 of the slag layer after the lead-rich slag (80-100 t) is supplemented is controlled to be 1800-2300 mm, at this time, the siphon channel is burned open through the oxygen blowing pipe, and then the reduction operation is started to ensure the normal flow of the lead liquid, compared with the side-blown reduction furnace built with the traditional siphon well structure, the siphon channel built with the structure has small labor intensity, low labor cost, small burning operation difficulty and few siphon channel slag running accidents.
[0027] During use, if the siphon flow does not meet the expectation, a plug with a different diameter can be selected to adjust the flow, and the center hole of the eye brick 2 can be directly plugged when not needed.
[0028] The structure of the embodiment is also tested on copper slag, and the effect is very good.
[0029] It should be understood that the above specific embodiments of the utility model are only used for example or explanation of the principle of the utility model, and do not constitute the limitation of the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without deviating from the spirit and scope of the utility model should be included in the protection scope of the utility model.
Claims
1. A siphon structure of a side-blown reduction furnace, characterized by: The siphon (1) is communicated with the bottom of the side-blown reduction furnace at one end, and the eye brick (2) is arranged at the other end of the siphon (1), and the other side of the eye brick (2) is communicated with the lead sluice (5) of the side-blown reduction furnace.
2. The siphon structure of the side-blown reduction furnace according to claim 1, characterized in that: The eye brick (2) is provided with a center hole.
3. The siphon structure of the side-blown reduction furnace according to claim 1, characterized in that: A plurality of hole plugs matched with the center hole of the eye brick (2) are further included.
4. The siphon structure of the side-blown reduction furnace according to claim 1, wherein The included angle between the center axis of the siphon (1) and the bottom of the side-blown reduction furnace is 20°; the length of the siphon (1) is 1500 mm, and the diameter of the siphon is 100 mm.
5. The siphon structure of the side-blown reduction furnace according to claim 1, wherein The included angle between the center line of the center hole of the eye brick (2) and the lead sluice (5) is 10-15°.
6. The siphon structure of the side-blown reduction furnace according to claim 1, wherein The eye brick (2) is provided with a support at the top, a temperature sensor is arranged on the support, and the probe of the temperature sensor is opposite to the mouth of the siphon (1).