Mud sleeve polisher
By designing a mud sleeve grinder and connecting it to the blast furnace opening machine using a grinding disc and a grinding drill rod, the problem of easy damage to the iron mouth mud sleeve was solved, rapid grinding and safe iron tapping were achieved, production accidents and economic losses were reduced, and stable production of the blast furnace was ensured.
Patent Information
- Application Number
- CN202422948192.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In the prior art, the taphole mud sleeve is easily damaged in harsh environments, resulting in the taphole being unable to be blocked and mechanical failure, causing production accidents and economic losses, and the existing maintenance methods are difficult to be timely and effective.
A mud sleeve grinder is designed, which includes a grinding disc, a grinding rack and a grinding drill rod. The grinder is connected to the blast furnace opening machine. The grinding disc is used to quickly grind the taphole mud sleeve. The bonded matter ground off is discharged through the fan-shaped notch, which reduces the weight of the grinding disc and increases its service life.
It can quickly and safely ensure normal iron tapping from the taphole in an emergency, avoid production accidents, reduce accidental shutdown rates and economic losses, and ensure stable production of the blast furnace.
Smart Images
Figure CN223466054U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to blast furnace ironmaking technical field, especially a mud set polisher. BACKGROUND
[0002] The current ironmaking process is that iron-containing raw materials, fuel and other auxiliary materials are loaded into a blast furnace from the top of the blast furnace according to a certain proportion, hot air is blown into the blast furnace from the tuyere along the circumference of the lower part of the blast furnace by a hot blast furnace, carbon and hot air burn to generate carbon monoxide and hydrogen at high temperature, a series of physical and chemical changes occur between the descending furnace charge and the ascending high-temperature gas stream, and finally molten iron and slag are generated and discharged from the iron notch to the outside of the furnace. 7# and 8# blast furnaces are equipped with rectangular double iron tapping fields and adopt flattening design, and four iron notches are provided, two iron notches are used for iron tapping in the daily production process, and the other two iron notches are in the state of disassembly or standby. The two 4150m 3 The blast furnace front opening machine and the mud gun are provided by the German TMT company, and the overall process parameters are relatively advanced.
[0003] Under normal production conditions, the iron notch is opened to tap iron after receiving the opening instruction, and the mud gun is used to block the iron notch when the iron tapping reaches the theoretical amount or the iron notch has been spouted. Then a series of work such as pulling the gun, loading the gun, processing the iron notch and replacing the drill bit is carried out, and after the end, the next opening instruction is waited. Due to the very harsh environment of the iron notch mud set, it needs to withstand high temperature, mechanical erosion, chemical corrosion and iron spatter for a long time, which makes the maintenance of the iron notch mud set more difficult. If the inspection and maintenance cannot keep up with the time, the iron notch cannot be blocked due to the damage of the mud set, mechanical failure and the damage of the goose neck part of the mud gun caused by high temperature slag and iron. In this case, the iron notch cannot be normally blocked, and the iron tank is already full. When the iron tank has no remaining capacity, the high-temperature slag and iron will be discharged to the ground, causing the iron tank to be welded on the railway, the track scale to be burned, the equipment and facilities around the railway to be burned, and a series of production accidents such as personnel injury. When the mud set is damaged and the iron notch cannot be normally blocked, the slag and iron in the tuyere and air pipe will be discharged due to the rapid reduction of the wind, which will cause a large production accident and huge economic loss to the enterprise.
[0004] Based on the above production status and background, the blast furnace front technical personnel designs a mud set polishing device combined with the production practice on site. The designed device can quickly polish the mud set flat under the fault state of the mud set, and the designed device eliminates the vicious production accidents caused by the burning of the track scale and the equipment and facilities under the railway due to the iron notch being blocked and the slag and iron in the tuyere and air pipe caused by the rapid reduction of the wind, effectively avoids the huge economic loss to the enterprise, and lays a solid foundation for the stable production of the blast furnace, the reduction of the accident shutdown rate and the reduction of the cost of molten iron production. Utility model content
[0005] The utility model discloses a mud sleeve polisher, to solve the problem of prior art, simple structure, convenient to use, effectively guarantee the stable production of blast furnace, effectively reduce the accident blowdown rate.
[0006] To realize above-mentioned purpose, the utility model provides following scheme:
[0007] The utility model provides a mud sleeve polisher, include: polishing disc, a plurality of polishing rack and polishing drill rod, the polishing disc is used for polishing the iron mouth mud sleeve, the periphery of polishing disc is provided with a plurality of sector gap, the sector gap is used for making the adhering object that polishes down when polishing the iron mouth mud sleeve passes through, the sector gap is provided with the polishing plate between each, each polishing rack is set up on the polishing plate, one end of polishing drill rod is used for with the middle part fixed connection of polishing disc, and with the coaxial line of polishing disc is arranged, and the other end is used for with the blast furnace furnace front opening machine can detachably fixed connection.
[0008] Preferably, the middle part of the polishing disc is provided with a connecting part, the middle part of the connecting part is provided with a connecting hole, the connecting hole is used for the polishing drill rod to pass through and is welded with the polishing drill rod fixed connection.
[0009] Preferably, each sector gap is arranged on the outside of the connecting part, the number of sector gaps is 6, and each sector gap is evenly arranged along the circumference of the polishing disc.
[0010] Preferably, the central angle of the sector gap is 60 degrees.
[0011] Preferably, the polishing rack is arranged at intervals between the polishing plates, and each polishing rack on the adjacent two polishing plates is arranged alternately.
[0012] Preferably, one end of the polishing rack is embedded in the polishing plate and is welded with the polishing plate, and the other end is a sharp end and protrudes from the polishing plate.
[0013] Preferably, the diameter of the polishing disc is 320mm, and the thickness is 40mm.
[0014] Preferably, the diameter of the polishing drill rod is the same as the diameter of the drill rod used by the blast furnace furnace front opening machine.
[0015] Preferably, the length of the polishing drill rod is 5000mm, and the length of the polishing drill rod passing through the polishing disc is 200mm.
[0016] The utility model has the following technical effects compared with the prior art:
[0017] The utility model provides a kind of mud cover polisher, connect with high furnace front opening machine, aim at iron mouth hole with polishing disc, start high furnace front opening machine, and the polishing disc is polished to iron mouth mud cover, to carry out iron mouth mud cover leveling;By setting fan-shaped notch on polishing disc, it can be polished when iron mouth mud cover is made to make the adhering material etc. that polish down smoothly blow out, avoid adhering on disc and affect polishing effect, on the other hand, the weight of polishing disc can be greatly reduced;In addition, it can be used by polishing drill rod and high furnace front opening machine connection, convenient to use, and the service life of mud cover polisher is effectively improved by polishing rack. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.
[0019] Fig. 1 The structure diagram of the mud cover polisher provided by the utility model is shown.
[0020] Fig. 2 The structure diagram of the distribution of the polishing disc and the polishing rack in the mud cover polisher provided by the utility model is shown.
[0021] Fig. 3 The structure diagram of the connection of the polishing rack and the polishing plate in the mud cover polisher provided by the utility model is shown.
[0022] In the figure: 1, polishing disc; 2, fan-shaped notch; 3, polishing plate; 4, connecting part; 5, connecting hole; 6, polishing rack; 7, polishing drill rod. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0024] The utility model aims at providing a kind of mud cover polisher to solve the problems in the prior art, simple structure, convenient to use, effectively guarantee high furnace stable production, effectively reduce the rate of accident.
[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0026] Example 1
[0027] The utility model provides a mud sleeve grinder, such as Figs. 1-3 As shown, it includes: a grinding disc 1, multiple grinding racks 6 and a grinding drill rod 7. The grinding disc 1 is used to grind the iron mouth mud sleeve. The grinding disc 1 is provided with multiple fan-shaped notches 2 in the circumference. The fan-shaped notches 2 are used to allow the adhesive polished off when grinding the iron mouth mud sleeve to pass through; a grinding plate 3 is provided between each fan-shaped notch 2; each grinding rack 6 is provided on the grinding plate 3; one end of the grinding drill rod 7 is used to be fixedly connected to the middle part of the grinding disc 1 and passes through the grinding disc 1, and is coaxially arranged with the grinding disc 1, and the other end is used to be detachably fixedly connected to the blast furnace front opening machine, and the grinding drill rod 7 is fixedly connected to the blast furnace front opening machine. The utility model is connected to the blast furnace opening machine, the grinding disc 1 is aligned with the iron mouth hole, the blast furnace opening machine is started, and the grinding disc 1 grinds the iron mouth mud sleeve, thereby leveling the iron mouth mud sleeve; by arranging the fan-shaped notch 2 on the grinding disc 1, the adhesive and the like ground off can be blown out smoothly when grinding the iron mouth mud sleeve, avoiding adhesion to the disc and affecting the grinding effect, and on the other hand, the weight of the grinding disc 1 can be greatly reduced; in addition, the grinding drill rod 7 can be connected to the blast furnace opening machine for use, which is easy to use, and the grinding rack 6 effectively prolongs the service life of the mud sleeve grinder.
[0028] In a preferred embodiment, a connecting portion 4 is provided in the middle of the grinding disc 1, and a connecting hole 5 is provided in the middle of the connecting portion 4. The connecting hole 5 is used to allow the grinding drill rod 7 to pass through and be welded and fixedly connected to the grinding drill rod 7. The structure is simple, ensuring that the grinding disc 1 can be stably connected to the grinding drill rod 7.
[0029] In a preferred embodiment, the sector-shaped notches 2 are disposed on the outside of the connecting portion 4. There are six sector-shaped notches 2, which are evenly spaced along the circumference of the grinding disc 1. The central angle of the sector-shaped notches 2 is 60 degrees. The mud sleeve grinder disc is not a solid disc, but is instead processed into a plum blossom shape with a 60-degree angle between them. This has the advantage that, on the one hand, adhesives removed during the grinding of the iron mouth mud sleeve can be blown out smoothly, preventing them from sticking to the disc and affecting the grinding effect. On the other hand, it can significantly reduce the weight of the disc.
[0030] In a preferred embodiment, the grinding racks 6 are arranged at intervals on the grinding plates 3, and the grinding racks 6 on two adjacent grinding plates 3 are staggered, which reduces the cost while ensuring the grinding effect.
[0031] In a preferred embodiment, one end of the grinding rack 6 is embedded in the grinding plate 3 and welded to the grinding plate 3, and the other end is a sharp end and protrudes from the grinding plate 3, and the grinding rack 6 is an alloy steel rack in the shape of a cuboid, and the front end is processed into a sharp end, effectively improving the grinding effect.
[0032] In a preferred embodiment, the diameter of the grinding disc 1 is 320 mm, and the thickness is 40 mm.
[0033] In a preferred embodiment, the diameter of the grinding drill rod 7 is the same as that of the drill rod used by the blast furnace front opening machine, facilitating cooperation with the existing blast furnace front opening machine.
[0034] In a preferred embodiment, the length of the grinding drill rod 7 is 5000 mm, and the length of the grinding drill rod 7 penetrating the grinding disc 1 is 200 mm.
[0035] Embodiment two
[0036] The embodiment also provides a use method of the mud sleeve grinder according to any one of the preceding embodiments, characterized in that it comprises the following steps:
[0037] The grinding drill rod 7 is connected to the blast furnace front opening machine, the grinding disc 1 is aligned with the iron notch hole, the blast furnace front opening machine is started, and the grinding disc 1 grinds the iron notch mud sleeve, thereby flattening the iron notch mud sleeve.
[0038] The mud sleeve grinder designed in the utility model can realize rapid and safe guarantee of normal iron tapping at the blast furnace front in an emergency. The grinding device designed in the utility model is manufactured by using existing materials in combination with the working principle of the opening machine and the mud gun. The specific implementation manner of the grinding device is mainly a device for grinding and flattening when the iron notch mud sleeve cannot tap iron due to damage or mud spouting after plugging before the blast furnace taps iron. The grinding device can be directly installed on the opening machine, and the rotation of the air bag of the opening machine is used to grind and flatten the iron notch mud sleeve. The rotation speed is adjustable, and the rotation speed can be adjusted according to the needs of the mud sleeve, thereby realizing the purpose of plugging the iron notch without mud spouting and accidents.
[0039] The principle and implementation manner of the utility model are described by using specific examples in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for general technical personnel in the field, the specific implementation manner and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as a limitation of the utility model.
Claims
1. A mud jacket polisher characterized by: The utility model relates to a polishing device for the iron mouth mud sleeve, which comprises: a polishing disc for polishing the iron mouth mud sleeve, wherein a plurality of sectorial gaps for passing the adhesive material generated during the polishing of the iron mouth mud sleeve are arranged on the circumference of the polishing disc, and polishing plates are arranged between the sectorial gaps; a plurality of polishing racks, wherein each polishing rack is arranged on the polishing plate; and a polishing drill rod, wherein one end of the polishing drill rod is fixedly connected to the middle part of the polishing disc and penetrates through the polishing disc, and the other end of the polishing drill rod is detachably fixedly connected to the blast furnace front opening machine.
2. The boot polisher of claim 1, wherein: The middle part of the polishing disc is provided with a connecting part, and the middle part of the connecting part is provided with a connecting hole for penetrating and fixedly connecting the polishing drill rod.
3. The boot polisher of claim 2, wherein: Each sectorial gap is arranged outside the connecting part, and the number of the sectorial gaps is six, and each sectorial gap is uniformly arranged along the circumference of the polishing disc.
4. The boot polisher of claim 3, wherein: The central angle of the sectorial gap is 60 degrees.
5. The boot polisher of claim 1, wherein: The polishing racks are arranged at intervals on the polishing plates, and the polishing racks on the adjacent polishing plates are arranged in a staggered manner.
6. The boot polisher of claim 5, wherein: One end of the polishing rack is embedded in the polishing plate and fixedly connected to the polishing plate by welding, and the other end of the polishing rack is a sharp end and protrudes from the polishing plate.
7. The boot polisher of claim 1, wherein: The diameter of the polishing disc is 320 mm, and the thickness of the polishing disc is 40 mm.
8. The boot polisher of claim 1, wherein: The diameter of the polishing drill rod is the same as the diameter of the drill rod used by the blast furnace front opening machine.
9. The boot polisher of claim 1, wherein: The length of the polishing drill rod is 5000 mm, and the length of the polishing drill rod penetrating through the polishing disc is 200 mm.