阅读说明：本技术 高炉上料输送机构 (Blast furnace feeding conveying mechanism ) 是由 王松 崔新亮 张亮 于丹 林杨 王洪 王璐 朱福勇 赵东 刘倩 王振虎 辛向东 于 2021-06-24 设计创作，主要内容包括：本发明提供了一种高炉上料输送机构,包括设置在高炉本体的上方称量料罐和设置在所述称量料罐上方的受料斗,在所述受料斗的顶部设置有最顶层平台,上料主皮带的头部漏斗设置在所述最顶层平台上并与所述受料斗上下位置对应；并且,所述称量料罐的与所述受料斗之间的上密封阀集成至所述称量料罐的上部以降低所述最顶层平台以及所述头部漏斗的高度。利用上述高炉上料输送机构能够有效解决炉顶的上料装置中的上料主皮带的传动距离较远、运输成本高的问题。(The invention provides a blast furnace feeding conveying mechanism which comprises a weighing material tank arranged above a blast furnace body and a receiving hopper arranged above the weighing material tank, wherein the top of the receiving hopper is provided with a topmost platform, and a head funnel of a feeding main belt is arranged on the topmost platform and corresponds to the upper position and the lower position of the receiving hopper; and an upper sealing valve between the weighing material tank and the receiving hopper is integrated to the upper part of the weighing material tank so as to reduce the height of the topmost platform and the head funnel. The blast furnace feeding conveying mechanism can effectively solve the problems of long transmission distance and high transportation cost of a feeding main belt in a furnace top feeding device.)

1. A blast furnace feeding conveying mechanism is characterized by comprising a weighing material tank arranged above a blast furnace body and a receiving hopper arranged above the weighing material tank, wherein the top of the receiving hopper is provided with a topmost platform, and a head funnel of a feeding main belt is arranged on the topmost platform and corresponds to the receiving hopper in the vertical position; and the number of the first and second electrodes,

the upper sealing valve between the weighing material tank and the receiving hopper is integrated to the upper part of the weighing material tank so as to reduce the height of the topmost platform and the head funnel.

2. The blast furnace charging conveyor mechanism of claim 1,

the material loading main belt is close to one end of the head funnel is provided with a main belt head pulley, and the main belt head pulley is used for changing the running direction of the main belt of the material loading main belt so as to transmit materials to be conveyed into the head funnel.

3. The blast furnace charging conveyor mechanism of claim 2,

and a direction-changing roller is arranged below the position, close to the main belt head wheel, of the feeding main belt.

4. The blast furnace charging conveyor mechanism of claim 3,

and a headstock is arranged on the topmost platform, and the main belt head pulley and the redirection roller are rotationally connected to the headstock.

5. The blast furnace charging conveyor mechanism of claim 4,

a main belt middle frame is arranged above the topmost platform, and a main belt rubber belt is sleeved on the periphery of the main belt middle frame and rotates through the main belt head wheel.

6. The blast furnace charging conveyor mechanism of claim 5,

an upper carrier roller is arranged on the upper side of the main belt middle frame, and a lower carrier roller is arranged on the lower side of the main belt middle frame; and the number of the first and second electrodes,

the main belt adhesive tape rotates on the periphery of the main belt middle frame through the main belt head pulley, the upper carrier roller and the lower carrier roller.

7. The blast furnace charging conveyor mechanism of claim 6,

and a support leg is connected between the main belt middle frame and the topmost platform.

8. The blast furnace charging conveyor mechanism of claim 7,

at least two supporting legs are arranged; and the number of the first and second electrodes,

the supporting legs are distributed between the main belt middle frame and the topmost platform at equal intervals.

9. The blast furnace charging conveyor mechanism according to any one of claims 1 to 7,

the top platform is provided with a platform opening, and a discharge port of the head funnel extends to the inside of the receiving hopper through the platform opening.

Technical Field

The invention relates to the technical field of blast furnace equipment, in particular to a blast furnace feeding conveying mechanism.

Background

In recent years, the development of steel in China is rapid, the steel is developing from the major steel countries to the strong steel countries, and the large-scale blast furnace becomes a development trend along with the frequent policy of the steel industry.

However, the overall height of the conventional blast furnace equipment is generally higher, so that the transmission distance of the feeding main belt in the feeding device on the furnace top is longer, thus more materials are needed to manufacture the feeding device, and the feeding process of the feeding main belt needs to consume larger energy, which seriously restricts the generating benefit of the large-scale blast furnace.

In view of the above, a method for improving the manufacturing and generating efficiency of a large-scale blast furnace is needed.

Disclosure of Invention

In view of the above problems, the present invention aims to solve the problems of long transmission distance and high transportation cost of a feeding main belt in a feeding device of a furnace top.

The invention provides a blast furnace feeding conveying mechanism which comprises a weighing material tank arranged above a blast furnace body and a receiving hopper arranged above the weighing material tank, wherein the top of the receiving hopper is provided with a topmost platform, and a head funnel of a feeding main belt is arranged on the topmost platform and corresponds to the receiving hopper in the vertical position; and the number of the first and second electrodes,

the upper sealing valve between the weighing material tank and the receiving hopper is integrated to the upper part of the weighing material tank so as to reduce the height of the topmost platform and the head leakage.

In addition, the preferable scheme is that a main belt head wheel is arranged at one end, close to the head funnel, of the feeding main belt, and the main belt head wheel changes the running direction of the belt so as to convey materials to be conveyed into the head funnel.

In addition, a preferred scheme is that a redirection roller is arranged below the position, close to the main belt head wheel, of the feeding main belt.

In addition, the top-most platform is provided with a head frame, and the main belt head wheel and the redirection roller wheel are both rotationally connected to the head frame.

In addition, the preferable scheme is that a main belt middle frame is arranged above the topmost platform, and a main belt rubber belt of the feeding main belt is sleeved on the periphery of the main belt middle frame and rotates through the main belt head pulley.

In addition, the preferable scheme is that an upper carrier roller is arranged on the upper side of the main belt middle frame, and a lower carrier roller is arranged on the lower side of the main belt middle frame; and the number of the first and second electrodes,

the main belt adhesive tape rotates on the periphery of the main belt middle frame through the main belt head pulley, the upper carrier roller and the lower carrier roller.

In addition, it is preferable that a leg is connected between the main belt intermediate frame and the topmost platform.

In addition, it is preferable that at least two of the legs are provided; and the number of the first and second electrodes,

the supporting legs are distributed between the belt middle frame and the topmost platform at equal intervals.

In addition, the preferable scheme is that a platform opening is formed in the topmost platform, and the discharge port of the head funnel extends to the interior of the receiving hopper through the platform opening.

Compared with the prior art, the blast furnace feeding conveying mechanism has the following beneficial effects:

the height of the topmost platform can be reduced by integrating the upper sealing valve between the weighing material tank and the receiving hopper to the upper part of the weighing material tank, and the height of the head funnel is reduced along with the head funnel arranged on the topmost platform, so that the stable conveying of materials on the main feeding belt is facilitated, and favorable conditions are created for process arrangement; in addition, under the condition of meeting the maximum feeding inclination angle of the main feeding belt (ensuring the maximum inclination angle that materials do not slip in the carrying process), the horizontal projection distance of the main feeding belt can be shortened, so that the power of the main feeding belt and the manufacturing cost of equipment are reduced.

Drawings

Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:

FIG. 1 is a schematic front view of a blast furnace charging conveyor according to an embodiment of the present invention;

FIG. 2 is an enlarged partial view of a loading master belt according to an embodiment of the present invention;

reference numerals: the device comprises a blast furnace body 1, a feeding main belt 2, a weighing material tank 3, a receiving hopper 4, a head funnel 5, a main belt middle frame 6, a main belt rubber belt 7, an upper carrier roller 8, a topmost platform 9, a lower carrier roller 10, a main belt head wheel 11, supporting legs 12, a redirection roller 13, a headstock 14 and a material conveying corridor 15.

The same reference numbers in all figures indicate similar or corresponding features or functions.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 shows a front view structure of a blast furnace charging conveyor mechanism according to an embodiment of the present invention, and fig. 2 shows a partially enlarged structure of a charging main belt according to an embodiment of the present invention.

As can be seen from fig. 1 and 2, the blast furnace feeding conveyor mechanism provided by the invention comprises a receiving hopper 4 arranged above a blast furnace body 1, a weighing material tank 3 is connected between the blast furnace body 1 and the receiving hopper 4, and a feeding main belt 2 is arranged above the receiving hopper 4, wherein a head funnel 5 is arranged at one end of the feeding main belt 2, a topmost platform 9 is arranged at the top of the receiving hopper 4, and the head funnel 5 of the feeding main belt 2 is arranged on the topmost platform 9 and corresponds to the receiving hopper 4 in the up-down position.

In the actual production process, raw materials such as ores and cokes required by blast furnace production are conveyed to the upper part of a receiving hopper 4 through a feeding main belt 2, then leak into the receiving hopper 4 through a head hopper 5, enter a weighing material tank 3 through the receiving hopper 4, and finally enter the inside of a blast furnace body 1 to finish the feeding of the blast furnace. The raw materials are combusted in the blast furnace body 1, and after a series of physical and chemical reactions, the generated coal gas enters the gravity dust removal system through the coal gas conveying pipeline, then enters the coal gas cloth bag dust removal system, and finally is merged into a whole plant coal gas pipe network.

It should be noted that the upper sealing valve in the conventional blast furnace is arranged between the weighing bucket 3 and the receiving hopper 4, while the upper sealing valve is integrated on the upper part of the weighing bucket 3 in the invention, so that the height of the topmost platform 9 can be effectively reduced, and the height of the head funnel 5 can be reduced along with the upper sealing valve because the head funnel 5 is arranged on the topmost platform 9, thereby facilitating the stable transportation of materials on the feeding main belt 2 and creating favorable conditions for process arrangement; in addition, under the condition of meeting the maximum feeding inclination angle of the main feeding belt 2, the horizontal projection distance of the main feeding belt can be shortened, so that the power of the main feeding belt 2 and the manufacturing cost of equipment are reduced.

In addition, in a specific embodiment of the invention, a main belt head wheel 11 is arranged at one end of the loading main belt 2 close to the head funnel 5, the main belt head wheel 11 is used for changing the direction of the loading main belt rubber belt 7, the material is conveyed into the head funnel 5 along with the rotation of the loading main belt 2, then the material leaks into the receiving hopper 4 through the opening end of the head funnel 5, enters the weighing material tank 3 through the hopper 4, and finally enters the interior of the blast furnace body 1, and the loading of the blast furnace is completed. And, a blast furnace gas duct is also provided above the blast furnace body 1, wherein the height of the highest point of the blast furnace gas duct is not higher than the height of the main belt head pulley 11. Through the design, the maximum feeding inclination angle of the feeding main belt 2 can be reduced, the number of blast furnace gas pipelines can be reduced, the material consumption of the blast furnace gas pipelines can be reduced, and the cost can be further saved.

Specifically, the blast furnace gas pipeline comprises an ascending pipeline, a descending pipeline and a dust removal pipeline (none of which are marked in the figure); wherein, the bottom end of the ascending pipeline is connected with the top of the blast furnace body 11, the top end of the descending pipeline is connected with the top end of the ascending pipeline, and the bottom end of the descending pipeline is connected with the dust removal pipeline; further, since the connection between the top end of the downcomer and the top end of the uptake duct is the highest point of the blast furnace gas duct, the height of the top end of the downcomer or the height of the top end of the uptake duct needs to be not higher than the height of the main belt head pulley.

Further, the ascending pipeline comprises a delivery pipe connected to the top of the blast furnace body, a vertical pipe connected to the top end of the delivery pipe and a merging pipe connected to the vertical pipe; wherein, the merging pipe is far away from one end of the vertical pipe and is connected with the top of the descending pipeline.

A direction changing roller 13 is arranged below the position, close to the main belt head pulley 11, of the feeding main belt 2, the contact surface between the main belt head pulley 11 and the main belt rubber belt 7 is increased through the direction changing roller 13, so that the friction force between the main belt head pulley 11 and the main belt rubber belt 7 is increased, the power of a driving motor of the main belt 6 can be reduced, and the slipping phenomenon can be prevented.

In addition, in order to realize the installation of the main belt head wheel 11 and the redirection roller 13, a head frame 14 is arranged on the topmost platform 9, the main belt head wheel 11 and the redirection roller 13 are both rotationally connected to the head frame 14 through rotating shafts, and the installation stability of the main belt head wheel 11 and the redirection roller 13 is ensured through the head frame 14.

Specifically, the feeding main belt 2 mainly comprises a main belt middle frame 6 arranged above the topmost platform 9 and a main belt adhesive tape 7 sleeved on the periphery of the main belt middle frame 6, and the main belt adhesive tape 7 rotates through a main belt head pulley 11. More specifically, an upper carrier roller 8 is arranged on the upper side of the main belt intermediate frame 6, and a lower carrier roller 10 is arranged on the lower side of the main belt intermediate frame 6; and, the main belt rubber 7 is rotated at the periphery of the main belt intermediate frame 6 by a main belt head pulley 11, an upper idler 8 and a lower idler 10. Furthermore, in order to ensure the support stability of the main belt intermediate frame 6, legs 12 may be connected between the main belt intermediate frame 6 and the topmost platform 9.

It should be noted that the main belt middle frame is used for connecting the upper carrier roller 8 and the lower carrier roller 10, the support leg 12 is used for supporting the main belt middle frame 6, the upper carrier roller 8, the lower carrier roller 10 and the main belt middle frame form a frame structure, and are connected with the headstock 14 on the highest-layer platform, and the headstock 14 is used for supporting the main belt head pulley 11 and the redirecting roller 13, and is also a main component for bearing the horizontal tension of the feeding main belt 2. The main belt adhesive tape 7 passes through the upper carrier roller 8, the main belt head wheel 11, the bend wheel, the lower carrier roller 10 and finally reaches a roller (not shown in the figure) at the tail part of the main belt middle frame to form a belt closed loop for conveying materials. In addition, the head funnel 5 is used for concentrating materials and preventing dust from rising, raw materials such as ores and cokes required by blast furnace production are conveyed to the main belt head wheel 11 through the main belt adhesive tape 7 and then are put into the receiving hopper 4 through the head funnel 5, and then enter the weighing material tank 3 through a series of components such as an upper sealing valve and finally enter the blast furnace to finish the feeding of the blast furnace.

In addition, in order to improve the support stability of the main belt intermediate frame 6, at least two groups of support legs 12 need to be arranged on the same intermediate frame 6; and the supporting legs 12 are distributed between the main belt middle frame 6 and the topmost platform 9 at equal intervals, and the interval is not more than 3 m.

In a specific embodiment of the present invention, a platform opening is formed on the topmost platform 9, and the discharge hole at the lower end of the head funnel 5 extends to the inside of the receiving hopper 4 through the platform opening, so that the head funnel 5 is installed.

Specifically, for preventing that the major part of material loading main belt 2 from exposing in the external environment, need set up defeated material vestibule 15 for material loading main belt 2, can enough accomplish waterproof, dustproof and prevent wind the processing to the major part of material loading main belt 2 through setting up defeated material vestibule 15. In addition, because the height of the topmost platform 9 is reduced, the required length of the conveying corridor 15 of the main belt is reduced, and therefore the manufacturing engineering cost of the conveying corridor 15 is effectively reduced.

It should be noted that, in the process of charging the blast furnace, the matching of the furnace top pressure equalizing and discharging system, the airtight box cooling water system, the nitrogen sealing system, the nitrogen tank, the furnace top stock rod and other auxiliary facilities is also required, and as the main innovation point of the invention is that the service life of the blast furnace charging conveying mechanism is prolonged, for other technical details, a plurality of expressions are provided in the related art, and are not specifically described here.

The blast furnace charging conveyor mechanism according to the invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the blast furnace charging conveyor mechanism of the present invention described above without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.