阅读说明：本技术 一种铸铁高炉 (Cast iron blast furnace ) 是由 沈国扬 郑东风 于 2021-05-20 设计创作，主要内容包括：本发明涉及铸铁技术领域,特别涉及一种铸铁高炉,包括高炉本体,所述高炉本体的表面设置有鼓风机,所述高炉本体的一侧设置有鼓风炉,所述高炉本体的另一侧设置有入料箱,所述入料箱包括箱体,所述箱体的一端开设有出料口,所述高炉本体、入料箱之间设置有送料装置,所述送料装置的前端设置有悬浮循环运动装置,所述悬浮循环运动装置包括固定板,所述固定板的一端设置有电机,所述固定板的后端连接有传送带,所述传送带的表面设置有推动装置,所述推动装置包括连接板,所述连接板的内部活动连接有螺杆。本发明所述的一种铸铁高炉,可以避免燃料堆黏在在送料输送带表面,减少燃料的浪费,且可以阻止圆块状燃料下滑,送料效率高。(The invention relates to the technical field of cast iron, in particular to a cast iron blast furnace, which comprises a blast furnace body, wherein an air blower is arranged on the surface of the blast furnace body, a blast furnace is arranged on one side of the blast furnace body, a feeding box is arranged on the other side of the blast furnace body, the feeding box comprises a box body, a discharge hole is formed in one end of the box body, a feeding device is arranged between the blast furnace body and the feeding box, a suspension circulating movement device is arranged at the front end of the feeding device, the suspension circulating movement device comprises a fixed plate, a motor is arranged at one end of the fixed plate, a conveyor belt is connected to the rear end of the fixed plate, a pushing device is arranged on the surface of the conveyor belt and comprises a connecting plate, and a screw rod is movably connected inside the connecting plate. The cast iron blast furnace can avoid fuel piles from being stuck on the surface of the feeding conveyer belt, reduce the waste of fuel, prevent round fuel blocks from sliding downwards and has high feeding efficiency.)

1. The utility model provides a cast iron blast furnace, includes blast furnace body (1), its characterized in that: the surface of blast furnace body (1) is provided with air-blower (3), one side of blast furnace body (1) is provided with blast furnace (2), the opposite side of blast furnace body (1) is provided with pan feeding case (4), pan feeding case (4) include box (41), discharge gate (42) have been seted up to the one end of box (41), be provided with material feeding unit (5) between blast furnace body (1), pan feeding case (4).

2. The cast iron blast furnace according to claim 1, wherein: the front end of the feeding device (5) is provided with a suspension circulating motion device (6), the suspension circulation movement device (6) comprises a fixed plate (61), one end of the fixed plate (61) is provided with a motor (62), the rear end of the fixed plate (61) is connected with a conveyor belt (63), the surface of the conveyor belt (63) is provided with a pushing device (7), the pushing device (7) comprises a connecting plate (71), a screw rod (72) is movably connected inside the connecting plate (71), the lower end of the screw rod (72) is connected with a push block (73), the screw rod (72) is in sliding connection with the inside of the connecting plate (71), the lower end of the screw rod (72) is fixed at the center of the upper end of the push block (73), a nut is arranged on the outer side of the screw rod (72) at the upper end of the connecting plate (71), the connecting plate (71) and the screw rod (72) are fixedly connected through a nut.

3. The cast iron blast furnace according to claim 2, wherein: the fixed plate (61) is of an L-shaped structure, the inner ring of the conveyor belt (63) is connected with a transverse block, the rear end of the fixed plate (61) is close to the upper end and is fixedly connected with the transverse block, and the rear end of the fixed plate (61) is close to the lower end and is fixedly connected with the front end of the feeding device (5).

4. The cast iron blast furnace according to claim 2, wherein: a gap is formed between the conveyor belt (63) and the feeding device (5), and the height of the connecting plate (71) is one half of the gap.

5. The cast iron blast furnace according to claim 2, wherein: the suspension circulating motion device (6) is provided with two groups, and the connecting plates (71) are fixedly connected to the surfaces of the two groups of conveyor belts (63).

6. The cast iron blast furnace according to claim 1, wherein: one end of the feeding device (5) is positioned in the box body (41), the other end of the feeding device (5) is connected with a feeding port of the blast furnace body (1), and the size of the feeding device (5) is matched with that of the discharging port (42).

7. The cast iron blast furnace according to claim 1, wherein: the upper end of the box body (41) is provided with a feeding hopper (43), and the feeding hopper (43) is provided with two groups.

8. The cast iron blast furnace according to claim 1, wherein: the blast furnace is characterized in that the two sets of the blowers (3) are symmetrically arranged relative to the blast furnace body (1), and the two sets of the blowers (3) are connected with an output pipeline of the blast furnace (2).

9. The cast iron blast furnace according to claim 1, wherein: the feeding device (5) comprises a material conveying belt (51), a support frame (52) and a carrier roller (53), chamfers are arranged at the corners of the outer surface of the material conveying belt (51), bulges (11) which are uniformly distributed are arranged on the outer surface of the material conveying belt (51), the inner surface of the material conveying belt (51) is in contact with the outer surface of the carrier roller (53), through holes are formed in the two side walls of the support frame (52), rotating shafts at the two ends of the carrier roller (53) are slidably mounted in the through holes in the two side walls of the support frame (52), a plurality of groups of air holes (8) which are uniformly spaced are arranged on the two side walls of the support frame (52), the air outlets of the air holes (8) are positioned above the air inlets of the air holes (8), the air outlets of the air holes (8) are arranged in an oblique upward direction, the air inlets of the air holes (8) are communicated with an exhaust pipe of a blast furnace body (1) through pipelines, and the air outlets of the air holes (8) are parallel to the chamfered edges of the chamfers, the upper surface of the supporting frame (52) is fixedly connected with a semicircular cover (9), and the center of the top of the cover (9) is provided with an exhaust hole (10).

Technical Field

The invention relates to the technical field of cast iron, in particular to a cast iron blast furnace.

Background

The cast iron blast furnace is equipment for continuously producing liquid pig iron in the blast furnace by using coke, iron-containing ore and flux, is an important link of modern steel production, has relatively simple process, high yield, high labor productivity and low energy consumption, and is a main method of modern iron making;

the invention patent with the patent number 2018115481676 discloses blast furnace iron-making equipment, which comprises an inner layer furnace body, an outer layer furnace body, a bottom plate and a plurality of air supply assemblies, wherein the outer layer furnace body is used for enclosing with the inner layer furnace body to form a furnace chamber for iron making, and the air supply assemblies are respectively arranged at the lower part of the inner layer furnace body and the lower part of the outer layer furnace body. The blast furnace iron-making equipment provided by the invention utilizes the inner furnace body, the outer furnace body and the bottom plate below to enclose and synthesize the furnace chamber for iron making, thereby achieving the effect that the air supply assemblies are respectively arranged at the inner side and the outer side of the annular furnace chamber to improve the air supply efficiency, avoiding the problem of ineffective air supply caused by overlarge inner diameter of the traditional blast furnace, meanwhile, the air supply assemblies arranged at the inner side of the lower part of the inner furnace body and at the periphery of the lower part of the outer furnace body can effectively supply air to the furnace chamber at the middle part from the two sides of the annular furnace chamber, improving the iron-making efficiency, avoiding the problem of ineffective air supply at the center caused by overlarge air supply diameter in the furnace, reducing the air supply requirement and reducing the production cost;

blast furnace material loading is one of the most important rings in iron-making blast furnace system, but the round block form fuel easily rolls the gliding on the conveyer belt surface, is difficult for carrying, and when some powder fuel has viscidity because of the humidity, easily glue on the conveyer belt surface, reduces fuel delivery rate, and glues and fall on ground when the fuel on conveyer belt surface rotates to the below along with the conveyer belt by the action of gravity, causes the waste of fuel, in order to solve above-mentioned problem, we have proposed a cast iron blast furnace.

Disclosure of Invention

The invention mainly aims to provide a cast iron blast furnace, which can effectively solve the problems that round block-shaped fuel easily rolls and slides down on the surface of a conveying belt and is difficult to convey in the conveying process of the fuel, part of powdered fuel is easily adhered to the surface of the conveying belt when being wet and sticky, the conveying rate of the fuel is reduced, and the fuel adhered to the surface of the conveying belt falls on the ground under the action of gravity when rotating to the lower part along with the conveying belt, so that the fuel is wasted.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a cast iron blast furnace, includes the blast furnace body, the surface of blast furnace body is provided with the air-blower, one side of blast furnace body is provided with the blast furnace, the opposite side of blast furnace body is provided with the pan feeding case, the pan feeding case includes the box, the discharge gate has been seted up to the one end of box, be provided with material feeding unit between blast furnace body, the pan feeding case, material feeding unit's front end is provided with suspension circulating motion device, suspension circulating motion device includes the fixed plate, the one end of fixed plate is provided with the motor, the rear end of fixed plate is connected with the conveyer belt, the surface of conveyer belt is provided with thrust unit, thrust unit includes the connecting plate, the inside swing joint of connecting plate has the screw rod, the lower extreme of screw rod is connected with the ejector pad.

Preferably, the screw rod is in sliding connection with the inside of the connecting plate, the lower end of the screw rod is fixed to the center of the upper end of the pushing block, the pushing block is as wide as the wide conveying belt inside the feeding device, a nut is arranged on the outer side of the screw rod at the upper end of the connecting plate, and the connecting plate and the screw rod are fixedly connected through the nut.

Preferably, the fixed plate is of an L-shaped structure, the inner ring of the conveyor belt is connected with the transverse block, the rear end of the fixed plate, close to the upper end, is fixedly connected with the transverse block, and the rear end of the fixed plate, close to the lower end, is fixedly connected with the front end of the feeding device.

Preferably, a gap is formed between the conveying belt and the feeding device, and the height of the connecting plate is one half of the gap.

Preferably, the suspension circulating motion device is provided with two groups, and the connecting plate is fixedly connected to the surfaces of the two groups of conveyor belts.

Preferably, one end of the feeding device is positioned in the box body, the other end of the feeding device is connected with a feeding hole of the blast furnace body, and the size of the feeding device is matched with that of the discharging hole.

Preferably, the upper end of the box body is provided with two sets of feeding hoppers.

Preferably, the two groups of blowers are symmetrically arranged about the blast furnace body, and the two groups of blowers are connected with an output pipeline of the blast furnace.

Preferably, the feeding device comprises a material conveying belt, a support frame and a carrier roller, a chamfer is arranged at the corner of the outer surface of the material conveying belt, the outer surface of the material conveying belt is provided with uniformly distributed bulges, the inner surface of the material conveying belt is contacted with the outer surface of the carrier roller, through holes are arranged on two side walls of the support frame, rotating shafts at two ends of the carrier roller are slidably arranged in the through holes on the two side walls of the support frame, a plurality of groups of air holes are evenly arranged on the two side walls of the supporting frame at intervals, the air outlets of the air holes are positioned above the air inlets of the air holes, the air outlets of the air holes are arranged in an inclined upward direction, the air inlets of the air holes are communicated with the air outlet of the blast furnace body through a pipeline, the air outlet of the air hole is parallel to the chamfered edge of the chamfer, the upper surface of the support frame is fixedly connected with a semicircular cover, and the center of the top of the cover is provided with an exhaust hole.

Compared with the prior art, the invention has the following beneficial effects: the cast iron blast furnace is characterized in that a transverse block is connected inside a conveying belt, so that the conveying device and the conveying belt can be connected into a whole through a fixing plate, a gap is reserved between the conveying belt and the conveying device, a connecting plate can pass through the gap, in addition, the stability of the connecting plate during movement can be improved by arranging two groups of suspension circulating movement devices, the height of a screw rod can be adjusted by loosening and tightening the connecting plate and nuts on the surface of the screw rod, a starting motor can drive the conveying belt to run, so that the connecting plate on the surface of the conveying belt can be driven to move, a push block can move inside the conveying device, fuel inside the conveying device can be pushed and shoveled through the push block, the fuel can be prevented from being adhered on the surface of the conveying device, round block-shaped fuel on the upper part can be prevented from sliding downwards, the conveying efficiency is improved, and the problem that the fuel adhered on the surface of the conveying device falls on the ground under the action of gravity to cause waste when rotating to the lower part along with the round block is solved, the using effect is better compared with the traditional mode.

As a further proposal of the invention, the material conveying belt, the support frame and the carrier roller are arranged, and the outer surface of the material conveying belt is provided with the bulge, which can play a role of blocking when the fuel is conveyed to the blast furnace body along with the material conveying belt, thereby preventing the fuel from falling down along with the material conveying belt under the action of gravity, the carrier roller can support the material conveying belt and the fuel on the material conveying belt when the driving roller drives the material conveying belt to rotate, preventing the material conveying belt from sagging, ensuring the stable operation of the material conveying belt, and through the arrangement of the air holes, the high-pressure and high-temperature gas in the blast furnace body can be sprayed out from the air outlet of the air holes obliquely upwards through the pipeline, the fuel accumulated near the two sides of the material conveying belt is pushed when the material conveying belt is blown, so that the fuel moves obliquely upwards along with the gas to generate the overturning phenomenon, thereby the iron ore, the coke and the limestone contained in the fuel can be mixed more fully, and the fuel can be prevented from accumulating at the two sides of the material conveying belt when the fuel is conveyed by the material conveying belt, improve defeated material efficiency of conveying belt to gas pocket spun high temperature gas can preheat and dehumidify the fuel, can promote the fuel burning, reduces the waste material and produces, through setting up the lid, can avoid the fuel to be in the open air and drenched by the rainwater, through setting up the exhaust hole, can arrange external air purification device with the gas in the material feeding unit, avoids causing air pollution.

Drawings

FIG. 1 is a schematic view showing the overall construction of a cast iron blast furnace according to the present invention;

FIG. 2 is a schematic structural view of a feeding box of a cast iron blast furnace according to the present invention;

FIG. 3 is a schematic structural view of a suspension circulation movement device of a cast iron blast furnace according to the present invention;

FIG. 4 is a schematic view showing the construction of a pushing means of a cast iron blast furnace according to the present invention;

FIG. 5 is a schematic structural view of a feeding device of a cast iron blast furnace according to the present invention.

In the figure: 1. a blast furnace body; 2. a blast furnace; 3. a blower; 4. feeding into a box; 41. a box body; 42. a discharge port; 43. feeding into a hopper; 5. a feeding device; 51. a material conveying belt; 52. a support frame; 53. a carrier roller; 6. a suspension circulation motion device; 61. a fixing plate; 62. a motor; 63. a conveyor belt; 7. a pushing device; 71. a connecting plate; 72. a screw; 73. a push block; 8. air holes; 9. a cover; 10. and (4) exhausting holes.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, a cast iron blast furnace comprises a blast furnace body 1, an air blower 3 is arranged on the surface of the blast furnace body 1, a blast furnace 2 is arranged on one side of the blast furnace body 1, a feeding box 4 is arranged on the other side of the blast furnace body 1, the feeding box 4 comprises a box body 41, a discharge hole 42 is formed in one end of the box body 41, a feeding device 5 is arranged between the blast furnace body 1 and the feeding box 4, a suspension circulating motion device 6 is arranged at the front end of the feeding device 5, the suspension circulating motion device 6 comprises a fixed plate 61, a motor 62 is arranged at one end of the fixed plate 61, a conveyor belt 63 is connected to the rear end of the fixed plate 61, a pushing device 7 is arranged on the surface of the conveyor belt 63, the pushing device 7 comprises a connecting plate 71, a screw 72 is movably connected inside the connecting plate 71, and a push block 73 is connected to the lower end of the screw 72.

In this embodiment, the screw 72 is slidably connected with the inside of the connecting plate 71, the lower end of the screw 72 is fixed at the center of the upper end of the pushing block 73, the pushing block 73 has the same width as the conveying belt 8 inside the feeding device 5, the outer side of the screw 72 at the upper end of the connecting plate 71 is provided with a nut, and the connecting plate 71 and the screw 72 are fixedly connected through the nut.

Specifically, the height of the screw 72 can be adjusted by tightening or loosening the nuts on the connecting plate 71 and the surface of the screw 72, and the fuel in the feeding device 5 can be shoveled by the push block 73, so that the fuel can be prevented from being accumulated on the surface of the feeding belt, and the round block-shaped fuel above the feeding belt can be prevented from sliding downwards.

In this embodiment, the fixing plate 61 is an L-shaped structure, the inner ring of the conveyor belt 63 is connected with the transverse block, the rear end of the fixing plate 61 near the upper end is fixedly connected with the transverse block, and the rear end of the fixing plate 61 near the lower end is fixedly connected with the front end of the feeding device 5.

Specifically, since the transverse block is connected to the inside of the conveyor belt 63, the feeding device 5 and the conveyor belt 63 can be integrally connected by the fixing plate 61.

In this embodiment, a gap is provided between the conveyor belt 63 and the feeding device 5, and the height of the connecting plate 71 is half of the gap.

Specifically, the connecting plate 71 can pass through the gap reserved between the conveyor belt 63 and the feeding device 5.

In this embodiment, the suspension circulation motion device 6 is provided with two sets, and the connection plate 71 is fixedly connected to the surfaces of the two sets of conveyor belts 63.

Specifically, by providing two sets of the suspension circulation movement devices 6, the stability of the connection plate 71 during movement can be increased.

In this embodiment, one end of the feeding device 5 is located inside the box 41, the other end of the feeding device 5 is connected to the feeding port of the blast furnace body 1, and the size of the feeding device 5 is matched with the size of the discharging port 42.

The upper end of the box body 41 is provided with an inlet hopper 43, and the inlet hopper 43 is provided with two groups.

Specifically, the fuel can be fed into the interior of the box 41 through the feeding hopper 43, one end of the feeding device 5 is placed below the feeding hopper 43 in the interior of the box 41 through the discharging port 42, and the fuel can be received through the feeding device 5, so that the fuel can be continuously conveyed out.

In this embodiment, the two sets of blowers 3 are symmetrically arranged about the blast furnace body 1, and the two sets of blowers 3 are connected to the output duct of the blast furnace 2.

Specifically, wind power is supplied to the blast furnace 3 through the blast furnace 2, and finally the air pressure is increased by pressurizing the blast furnace 3 to form blast furnace blast with a certain pressure and flow rate and the blast furnace blast is delivered to the inside of the blast furnace, so that oxygen required for burning fuel in the blast furnace can be ensured.

In this embodiment, as shown in fig. 5, the feeding device 5 includes a material conveying belt 51, a supporting frame 52 and a supporting roller 53, a chamfer is disposed at a corner of an outer surface of the material conveying belt 51 for guiding the gas at the gas outlet of the gas hole 8, a plurality of grooves are formed on the outer surface of the material conveying belt 51 and the protrusions 11, so that the fuel can be blocked when being transported to the blast furnace body 1 along with the material conveying belt 51, and the fuel is prevented from falling downward along with the material conveying belt 51 due to gravity, the inner surface of the material conveying belt 51 contacts with the outer surface of the supporting roller 53, through holes are disposed on two side walls of the supporting frame 52, rotating shafts at two ends of the supporting roller 53 are slidably mounted in the through holes on the two side walls of the supporting frame 52, and the supporting roller 53 is disposed to support the material conveying belt 51 and the fuel on the material conveying belt 51 when the driving roller drives the material conveying belt 51 to rotate, the material conveying belt 51 can be prevented from sagging, and the stable operation of the material conveying belt 51 is ensured;

the support frame 52 is provided with a plurality of groups of air holes 8 on two side walls at uniform intervals, the air outlets of the air holes 8 are positioned above the air inlets of the air holes 8, the air outlets of the air holes 8 are arranged in an inclined upward direction, the air inlets of the air holes 8 are communicated with the exhaust pipe of the blast furnace body 1 through a pipeline, high-pressure and high-temperature gas in the blast furnace body 1 can be ejected out from the air outlets of the air holes 8 in the inclined upward direction through the pipeline, the air outlets of the air holes 8 are parallel to the chamfered edge of the chamfer, the gas ejected from the air holes 8 can be further guided, the gas continues to move in the inclined upward direction, the fuel accumulated near two sides of the material conveying belt 51 is pushed when the material conveying belt 51 conveys the fuel, the fuel is further enabled to move in the inclined upward direction along with the gas to generate a turnover phenomenon, iron ore, coke and limestone contained in the fuel can be mixed more fully, and then the fuel falls at the middle position of the outer surface of the material conveying belt 51 under the action of gravity, fuel is piled up in defeated material area 51 both sides when can avoiding defeated material area 51 to carry fuel, improves defeated material efficiency of defeated material area 51 to spun high-temperature gas can preheat and dehumidify fuel, can promote the fuel burning, reduces the waste material and produces, the upper surface fixedly connected with semicircular lid 9 of support frame 52, lid 9 top center is equipped with exhaust hole 10, exhaust hole 10 and external air purification device intercommunication, through setting up lid 9, can avoid fuel to be in the open air and drenched by the rainwater, through setting up exhaust hole 10, can discharge outside air purification device purification back with the gas outgoing in the material feeding unit 5, avoid causing air pollution.

It should be noted that, the present invention is a cast iron blast furnace, a user starts a blast furnace 2 and a blower 3 (model: DPT10-12B), supplies wind power to the blower 3 through the blast furnace 2, increases air pressure through the blower 3 to form blast furnace blast with a certain pressure and flow rate, and conveys the blast furnace blast to the interior of the blast furnace to ensure oxygen required for burning fuel in the blast furnace, pours the fuel into a material inlet hopper 43, finally falls into the interior of a material feeding device 5, receives the fuel through the material feeding device 5, conveys the fuel towards a material inlet of a blast furnace body 1, unscrews nuts on surfaces of a connecting plate 71 and a screw 72, adjusts the height of a push block 73 through a stretching screw 72 to attach the lower end surface of the push block 73 to the inner surface of the material feeding device 5, and starts a motor 62 (model: Y2-90L-2) to drive a conveyor belt 63 to run, so that the connecting plate 71 on the surface of the conveyor belt 63 starts to move and the push block 73 moves in the feeding device 5, the fuel in the feeding device 5 can be shoveled by the push block 73, and the upper round block-shaped fuel can be blocked from sliding downwards.

As another embodiment of the invention, a user starts a blast furnace 2 and a blower 3 (model: DPT10-12B), provides wind power to the blower 3 through the blast furnace 2, increases air pressure through the blower 3 to form blast furnace blast with certain pressure and flow, and conveys the blast furnace blast to the interior of the blast furnace to ensure oxygen required by fuel combustion in the blast furnace, pours the fuel into a feed hopper 43, finally falls into the interior of a feeding device 5, receives the fuel through the feeding device 5, conveys the fuel towards a feed inlet of a blast furnace body 1, communicates an air inlet of an air hole 8 with an exhaust pipe of the blast furnace body 1, enables high-temperature gas in the blast furnace body 1 to be sprayed out from an air outlet of the air hole 8 obliquely upwards through a pipeline, pushes the fuel accumulated at two sides of a conveying belt 51 when the conveying belt 51 conveys the fuel, enables the fuel to move obliquely upwards along with the gas to generate a turnover phenomenon, can make the iron ore that contains in the fuel, coke and limestone mix more fully, the fuel receives the action of gravity to drop at defeated material area 51 surface intermediate position afterwards, fuel piles up in defeated material area 51 both sides when can avoiding defeated material area 51 to carry fuel, improve defeated material area 51 defeated material efficiency, and spun high-temperature gas can preheat and dehumidify the fuel, can promote the fuel burning, reduce the waste material and produce, the gas of discharging into in material feeding unit 5 is discharged after discharging into external air purification device through the exhaust hole 10 at lid 9 top center again afterwards, avoid causing air pollution.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.