Blast furnace top charging bucket

Abstract

The utility model discloses a blast furnace top charging bucket, which relates to the technical field of blast furnace ironmaking, and comprises a tank body, an anti-loading manhole and an anti-bridging manhole, the tank body comprises an upper conical section, a cylindrical section and a lower conical section, the upper conical section, the cylindrical section and the lower conical section are integrally connected, the top of the upper conical section is provided with a feed port, and the bottom of the lower conical section is provided with a discharge port; the anti-overflow manhole is arranged at the bottom of the upper conical section and communicated with the interior of the upper conical section, the anti-overflow manhole can be opened or closed, and raw materials in the upper conical section can be discharged along the anti-overflow manhole when the anti-overflow manhole is opened; the anti-bridging manhole is formed in the bottom of the lower conical section and communicated with the interior of the lower conical section, the anti-bridging manhole can be opened or closed, the poking rod can enter the tank body along the anti-bridging manhole when the anti-bridging manhole is opened, an operator can damage the bridging structure in the lower conical section through the poking rod, the structure is simple, use is convenient, and the overhaul efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace ironmaking technical field, especially a kind of blast furnace top material tank. BACKGROUND

[0002] Blast furnace top material tank is the transfer station of all raw materials and fuel in blast furnace, when charging furnace material into material tank, personnel operation error will cause raw material filling to exceed the volume of material tank, leading to upper seal cannot be closed, equalizing valve cannot work, resulting in production stoppage.

[0003] The space of blast furnace material tank lower end is inverted conical shape, raw materials contact each other and exist friction in the process of discharging, which may cause material to be deposited, affecting the production of blast furnace.

[0004] When material depositing occurs, blast furnace must reduce air 4-6 hours, workers reach material tank position, open upper seal, and carry out material removal work. When material depositing occurs, blast furnace needs to be blown off for 24 hours, workers open material tank, and destroy the structure of deposited material, which is time-consuming and laborious, and the work is also accompanied by falling risk. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of blast furnace top material tank to solve the problems existing in the prior art, simple structure, convenient to use, effectively improve the maintenance efficiency.

[0006] To achieve the above object, the utility model provides the following scheme:

[0007] The utility model provides a kind of blast furnace top material tank, comprising: tank body, anti-overflow manhole and anti-deposited material manhole, the tank body includes upper taper section, cylindrical section and lower taper section, the upper taper section, the cylindrical section and the lower taper section are integrally connected, the top of the upper taper section is provided with inlet, and the bottom of the lower taper section is provided with outlet;The anti-overflow manhole is arranged at the bottom of the upper taper section and is communicated with the inside of the upper taper section, the anti-overflow manhole can be opened or closed, opening the anti-overflow manhole can make the raw materials in the upper taper section leak along the anti-overflow manhole;The anti-deposited material manhole is arranged at the bottom of the lower taper section and is communicated with the inside of the lower taper section, the anti-deposited material manhole can be opened or closed, opening the anti-deposited material manhole can make the ramming rod enter the tank body along the anti-deposited material manhole, and the operator can destroy the structure of deposited material in the lower taper section by ramming rod.

[0008] Preferably, the anti-overflow manhole is downwardly inclined, and the angle between the anti-overflow manhole and the center line of the tank body is 55°-65°.

[0009] Preferably, the diameter of the anti-overflow manhole is 280mm-320mm.

[0010] Preferably, the anti-overflow manhole is downwardly inclined, and the angle between the anti-overflow manhole and the center line of the tank body is 40-50°.

[0011] Preferably, the diameter of the anti-overflow manhole is 155-165 mm.

[0012] Preferably, the utility model also comprises a manhole cover, the top of the upper conical section is provided with an access hole, and the manhole cover is detachably fixedly connected to the access hole.

[0013] Preferably, the utility model also comprises a plurality of lifting plates, and each lifting plate is uniformly arranged along the circumference of the cylindrical section and is fixedly connected to the cylindrical section.

[0014] Preferably, the utility model also comprises a reinforcing piece, and the reinforcing piece is arranged outside the joint of the cylindrical section and the lower conical section.

[0015] Preferably, the utility model also comprises an equalizing pressure interface, and the equalizing pressure interface is arranged on the tank body and communicates with the inside of the tank body to adjust the air pressure in the tank body.

[0016] The utility model discloses relative to prior art has obtained following technical effect:

[0017] The utility model discloses a blast furnace top material tank, for the loading and pouring phenomenon, the worker need not to carry out the traditional complex material taking work, just need to place the containing container after opening the manhole under the anti-loading manhole, and the raw material can be discharged quickly, greatly improves the overhauling efficiency, reduces the production downtime due to loading and pouring, for the material stacking phenomenon, the worker opens the anti-material stacking manhole and uses the material poking rod to handle, compared with the traditional opening material tank and destroying the material stacking structure mode, more quick and efficient, shortens the time of handling the material stacking problem, thereby improves the overall production efficiency of blast furnace. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 The utility model provides the structure schematic diagram of blast furnace top material tank;

[0020] In the drawing: 1, tank body;2, anti-loading manhole;3, anti-material stacking manhole;4, manhole cover;5, lifting plate;6, reinforcing piece;7, equalizing pressure interface. DETAILED DESCRIPTION

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The purpose of this utility model is to provide a blast furnace top charge hopper to solve the problems existing in the prior art. It has a simple structure, is easy to use, and effectively improves maintenance efficiency.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] This embodiment provides a blast furnace top charge hopper, such as... Figure 1 As shown, the equipment includes: a tank body 1, an anti-overloading manhole 2, and an anti-burrowing manhole 3. The tank body 1 includes an upper conical section, a cylindrical section, and a lower conical section, which are integrally connected. The top of the upper conical section is provided with a feed inlet, and the bottom of the lower conical section is provided with a discharge outlet. The anti-overloading manhole 2 is located at the bottom of the upper conical section and communicates with the interior of the upper conical section. The anti-overloading manhole 2 can be opened or closed. Opening the anti-overloading manhole 2 allows the raw material in the upper conical section to drain out through the anti-overloading manhole 2. The anti-burrowing manhole 3 is located at the bottom of the lower conical section and communicates with the interior of the lower conical section. The anti-burrowing manhole 3 can be opened or closed. Opening the anti-burrowing manhole 3 allows the material-pumping rod to enter the tank body 1 through the anti-burrowing manhole 3, and the operator can use the material-pumping rod to destroy the burrowing structure in the lower conical section. By setting up the anti-overloading manhole 2 and the anti-burrowing manhole 3, the problems of overloading and burrowing can be dealt with quickly and effectively, improving the practicality and reliability of the equipment and ensuring the continuity of blast furnace production.

[0026] In a preferred embodiment, the anti-overfilling manhole 2 is inclined downwards, and the angle between the anti-overfilling manhole 2 and the center line of the tank body 1 is 55° to 65°, preferably 60°. The design of the anti-overfilling manhole 2 with a specific angle allows the raw materials to flow out more smoothly through the manhole when overfilling occurs, thus improving the efficiency of handling overfilling problems.

[0027] In a preferred embodiment, the diameter of the anti-smuggling manhole 2 is 280mm to 320mm, preferably 300mm. An anti-smuggling manhole 2 with a suitable diameter range can ensure the rapid discharge of raw materials without affecting the structural strength of the tank body 1 due to excessively large orifice diameter.

[0028] In a preferred scheme of the embodiment, the anti-arching manhole 3 is arranged downwardly inclined, and the angle between the anti-arching manhole 3 and the center line of the tank body 1 is 40°-50°, preferably 45°, and the specific inclined angle of the anti-arching manhole 3 facilitates the insertion of the poking rod by the operator, and improves the convenience of handling the arching problem.

[0029] In a preferred scheme of the embodiment, the diameter of the anti-arching manhole 3 is 155mm-165mm, preferably 159mm, and the anti-arching manhole 3 can not only facilitate the smooth insertion of the poking rod, but also improve the efficiency of handling the arching problem under the premise of ensuring the structural stability of the tank body 1.

[0030] In a preferred scheme of the embodiment, the blast furnace top material tank further comprises a maintenance door 4, and the top of the upper cone section is provided with a maintenance opening, and the maintenance door 4 is detachably fixedly connected to the maintenance opening, and the arrangement of the maintenance door 4 facilitates the periodic maintenance and maintenance of the inside of the tank body 1, improves the maintainability of the equipment, and prolongs the service life of the equipment.

[0031] In a preferred scheme of the embodiment, the blast furnace top material tank further comprises a plurality of lifting plates 5, and each lifting plate 5 is arranged uniformly along the circumference of the cylindrical section and is fixedly connected to the cylindrical section, and the arrangement of the lifting plate 5 facilitates the installation and disassembly of the material tank, and improves the installation and maintenance efficiency of the equipment.

[0032] In a preferred scheme of the embodiment, the blast furnace top material tank further comprises a reinforcing member 6, and the reinforcing member 6 is arranged outside the joint of the cylindrical section and the lower cone section, and the reinforcing member 6 enhances the stability of the structure of the tank body 1, and especially at the joint of the cylindrical section and the lower cone section, can effectively prevent the damage of the tank body 1 caused by stress concentration.

[0033] In a preferred scheme of the embodiment, the blast furnace top material tank further comprises an equalizing pressure interface 7, and the equalizing pressure interface 7 is arranged in the tank body 1 and communicates with the inside of the tank body 1 to adjust the air pressure in the tank body 1, and the equalizing pressure interface 7 can timely adjust the air pressure in the tank body 1, and ensures the balance of the pressure inside and outside the tank body 1.

[0034] Embodiment two

[0035] The utility model further provides a kind of using method of blast furnace top material tank as in embodiment one, comprising the following steps:

[0036] When monitoring that blast furnace material tank occurs to occur, operator first prepares suitable containing container, and places it at the lower end position of anti-overflow manhole 2.

[0037] The operator carefully opens the anti-overflow manhole 2. Since the anti-overflow manhole 2 is at an angle of 60° with the center line of the blast furnace charging bucket and has a diameter of Ф300, at this time the raw materials exceeding the volume of the charging bucket will naturally flow out along the anti-overflow manhole 2 into the container below.

[0038] After the raw materials are discharged to an appropriate degree, the anti-overflow manhole 2 is closed, the site is cleaned, and the charging bucket and related equipment are checked to ensure that they can operate normally, and then production is resumed.

[0039] When the charging bucket of the blast furnace is found to have a shed material phenomenon, the operator prepares a ramming rod and other tools.

[0040] The operator opens the anti-shedding manhole 3. Since the anti-shedding manhole 3 is at an angle of 45° with the center line of the blast furnace charging bucket and has a diameter of Ф159, the operator can smoothly insert the ramming rod into the inside of the charging bucket along the anti-shedding manhole 3.

[0041] The ramming rod is used to apply an external force to the shed material structure to destroy the accumulation state of the shed material, so that the raw materials can normally fall.

[0042] The ramming rod is continuously operated until the shed material problem is completely solved. Then the anti-shedding manhole 3 is closed, the charging of the charging bucket is checked, and it is ensured that the production of the blast furnace is resumed.

[0043] The principle and implementation mode of the present application are described by applying specific examples in the present application, and the above description of the embodiments is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation mode and application range. In conclusion, the content of the present application should not be understood as a limitation of the present application.

Claims

1. A blast furnace top bin, characterized by: The application relates to a tank body, which comprises an upper conical section, a cylindrical section and a lower conical section, wherein the upper conical section, the cylindrical section and the lower conical section are integrally connected, the top of the upper conical section is provided with a feeding port, the bottom of the lower conical section is provided with a discharging port, a prevent-overflow manhole is arranged at the bottom of the upper conical section and communicates with the inside of the upper conical section, the prevent-overflow manhole can be opened or closed, the raw material in the upper conical section can be discharged along the prevent-overflow manhole when the prevent-overflow manhole is opened, a prevent-stored material manhole is arranged at the bottom of the lower conical section and communicates with the inside of the lower conical section, the prevent-stored material manhole can be opened or closed, a poking rod can enter the tank body along the prevent-stored material manhole when the prevent-stored material manhole is opened, and an operator can destroy the stored material structure in the lower conical section through the poking rod. The prevent-overflow manhole is downwardly inclined, and the angle between the prevent-overflow manhole and the center line of the tank body is 55-65 degrees. The diameter of the prevent-overflow manhole is 280-320 mm. The prevent-stored material manhole is downwardly inclined, and the angle between the prevent-stored material manhole and the center line of the tank body is 40-50 degrees.

2. A blast furnace top bin according to claim 1, characterised in that: The diameter of the prevent-stored material manhole is 155-165 mm.

3. A blast furnace top bin according to claim 2, characterised in that: The tank body is further provided with a maintenance door, the top of the upper conical section is provided with a maintenance port, and the maintenance door is detachably fixedly connected to the maintenance port.

4. The blast furnace top bin according to claim 1, characterized in that: The tank body is further provided with a plurality of hoisting plates, each of the hoisting plates is uniformly arranged along the circumferential direction of the cylindrical section and is fixedly connected to the cylindrical section.

5. A blast furnace top bin according to claim 4, characterised in that: The tank body is further provided with a reinforcing piece, which is arranged outside the joint of the cylindrical section and the lower conical section.

6. The blast furnace top bin according to claim 1, characterized in that: The tank body is further provided with an equalizing pressure interface, which is arranged on the tank body and communicates with the inside of the tank body to adjust the air pressure in the tank body.

7. The blast furnace bell less top bin of claim 1, wherein: ​ 8. The blast furnace bell less top bin of claim 1, wherein: ​ 9. The blast furnace bell less top bin of claim 1, wherein: ​

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