CN216954019U

CN216954019U - Novel automatic even heating energy-conserving alloy toasts device

Info

Publication number: CN216954019U
Application number: CN202221204724.4U
Authority: CN
Inventors: 李勇; 曹利; 李炳岳; 武将
Original assignee: Lvliang Jianlong Industrial Co Ltd
Current assignee: Lvliang Jianlong Industrial Co Ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-07-12
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses a novel automatic uniform heating energy-saving alloy baking device, which belongs to the field of alloy baking devices in the metallurgical industry and mainly solves the problems of nonuniform heating and long heating time of the current alloy baking furnace. Set up agitating unit in the alloy kiln, set up the nozzle simultaneously in the inside top of alloy kiln and below and toast, toast the limit and stir, make the even heating of alloy material toast, set up kiln top movable cover simultaneously at the top of alloy kiln, the bottom sets up movable stripper, realizes unloading in the automation to guarantee the safety of toasting the in-process.

Description

Novel automatic even heating energy-saving alloy baking device

Technical Field

The utility model belongs to the field of alloy baking devices in the metallurgical industry, and particularly relates to a novel automatic uniform heating energy-saving alloy baking device.

Background

At present, in the process of steel tapping in steel mills, in order to avoid large temperature drop of steel tapping, particularly to avoid the defect of billet 'bubble' caused by alloy moisture in rainy and snowy weather, alloy baking devices are generally adopted in domestic steel mills, namely after the loading amount of molten iron and scrap steel is determined, the alloy loading amount is calculated and is timely loaded into an alloy baking kiln, coal gas is introduced into the alloy baking kiln at the same stage of loading the scrap steel in a converter, adding the molten iron and blowing for baking, and after the baking is carried out for more than ten minutes, the alloy is heated to 400-600 ℃. The baking makes the free crystal water on the alloy surface completely volatilize, avoids the defect of 'bubble', obviously reduces the hydrogen content in the steel, and simultaneously can reduce the tapping temperature by 10-15 ℃, thus being an ideal practical facility. However, in large domestic steel mills, the phenomena of uneven alloy baking and heating, partial alloy materials not being burnt red, long heating time and limitation of converting time generally exist, and the alloy baking device cannot achieve good effects.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a novel automatic uniform heating energy-saving alloy baking device, wherein a stirring device is arranged in an alloy kiln, nozzles are arranged above and below the interior of the alloy kiln for baking while stirring to uniformly heat and bake alloy materials, a kiln top movable cover is arranged at the top of the alloy kiln, and a movable discharging plate is arranged at the bottom of the alloy kiln, so that automatic feeding and discharging are realized, and the safety in the baking process is ensured.

In order to achieve the aim, the utility model provides a novel automatic uniform heating energy-saving alloy baking device which comprises an alloy kiln, wherein a kiln body support is arranged below the alloy kiln for supporting, and the novel automatic uniform heating energy-saving alloy baking device is characterized in that a kiln top movable cover is arranged at the top of the alloy kiln, a hole is formed in the center of two sides of the alloy kiln, a rotating shaft is arranged in the hole and rotates in the alloy kiln through a bearing, a plurality of stirring columns are arranged on the rotating shaft, a nitrogen blocking device is arranged at the joint of the rotating shaft and the alloy kiln, a kiln top pipeline is arranged above the rotating shaft, a plurality of kiln top nozzles are arranged at the bottom of the kiln top pipeline, the kiln top nozzles are vertically arranged, two kiln bottom pipelines are arranged below the rotating shaft and symmetrically arranged at two sides of the alloy kiln, kiln bottom nozzles are also arranged on the kiln bottom pipeline, the kiln bottom nozzles are horizontally arranged, a movable discharging plate is arranged at the bottom of the alloy kiln, one side of the rotating shaft is connected with a motor and a speed reducer for driving, and an electric control cabinet is further arranged for controlling the motor.

Through set up the rotation axis in the alloy kiln, the rotation axis uses motor and speed reducer to drive, be provided with the stirring post on the rotation axis, the rotatory stirring post that drives through the rotation axis stirs the inside alloy material of alloy kiln, all be provided with the gas line in the top of rotation axis and below simultaneously, be provided with the nozzle on the gas line and spout fire, the mode of heating is toasted the heating to the alloy material from the top down while stirring, make the alloy material even heating, promote the speed of toasting, the junction of rotation axis and alloy kiln sets up nitrogen gas plugging device simultaneously, prevent to toast in-process coal gas and spill over, the alloy kiln top sets up the kiln crown movable cover, can conveniently feed in raw material, avoid flame to spill over from the top after the closure simultaneously, the below sets up the convenient unloading of movable stripper plate.

Furthermore, a first hydraulic cylinder is arranged above the kiln top movable cover, and the first hydraulic cylinder controls the kiln top movable cover to turn over. The movable cover on the top of the alloy kiln is driven by the hydraulic cylinder, so that the bearing pressure is high, the alloy kiln can run in a high-temperature environment, and the service efficiency is improved.

Furthermore, the stirring columns are of T-shaped structures and are arranged in a staggered mode. The stirring range can be enlarged by adopting a T-shaped structure.

Furthermore, the nitrogen blocking device is a bearing nitrogen seal, a nitrogen pipeline is arranged outside the bearing nitrogen seal, the nitrogen pipeline is arranged on the side face of the alloy kiln, and a nitrogen interface is further arranged on the nitrogen pipeline. Set up nitrogen seal device on the bearing to set up and lead to the nitrogen line and carry out incessant nitrogen gas transport to the bearing, nitrogen gas interface connection nitrogen gas source can block that the interstice of trompil department spills over the coal gas.

Furthermore, the part of the kiln top pipeline extending out of the alloy kiln is also provided with a compressed air interface and a kiln top coal gas interface.

Furthermore, the two kiln top pipelines are symmetrically arranged in the middle positions of two sides of the alloy kiln and are parallel to the rotating shaft, and the top of the kiln top gas pipeline is provided with an anti-smashing device. The feeding of the alloy material of being convenient for sets up the kiln crown pipeline in both sides, toasts from both sides, guarantees to heat evenly, and with rotation axis parallel arrangement, increases and toasts the area, promotes and toasts efficiency, prevents pounding the damage of device prevention alloy material whereabouts process to the kiln crown pipeline.

Furthermore, a part of the kiln bottom pipeline extending out of the alloy kiln is also provided with a combustion-supporting air interface and a kiln bottom coal gas interface. The alloy material is baked from the lower part by mixing combustion-supporting air and coal gas.

Furthermore, the kiln bottom pipeline is arranged in parallel with the rotating shaft. The parallel arrangement increases the baking efficiency.

Furthermore, a second hydraulic cylinder is arranged below the movable discharging plate, and the second hydraulic cylinder controls the movable discharging plate to overturn and discharge. The movable stripper plate of bottom also drives through the pneumatic cylinder, and bearing pressure is great, and can move under high temperature environment, promotes the availability factor.

Furthermore, a thermocouple is arranged on the side surface of the alloy kiln and is connected with a temperature display instrument. The thermocouple monitors the baking temperature of the internal alloy, and the baking effect of the internal alloy is guaranteed.

The utility model has the beneficial effects that the movable cover on the top of the alloy kiln is arranged above the alloy kiln, so that feeding can be satisfied, the overflow of flame and coal gas from the upper part can be avoided during baking, and the baking efficiency is improved; by arranging the stirring device, the nozzles are arranged above and below the interior of the alloy kiln for baking, and stirring is carried out while baking, so that the alloy is almost all burned red, the baking speed is greatly increased in limited baking time, the requirement of fast-paced steelmaking is met, and the energy is saved; a nitrogen blocking device is arranged on the rotating shaft to prevent coal gas from overflowing in the baking process, so that the safety of work is guaranteed; the device has scientific and reasonable structural design, lower manufacturing cost and simple and convenient operation, and meets the aim of automatic and uniform heating of alloy materials.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of a novel automatic uniform heating energy-saving alloy baking device provided by the utility model;

FIG. 2 is a schematic structural diagram of an alloy kiln in a preferred embodiment.

Wherein: 1. an electric control cabinet; 2. a motor; 3. a speed reducer; 4. an alloy kiln; 5. a kiln body support; 101. a movable cover at the top of the kiln; 102. a first hydraulic cylinder; 103. a rotating shaft; 104. a stirring column; 105. a kiln top pipeline; 106. a kiln top nozzle; 107. a kiln bottom pipeline; 108. a kiln bottom nozzle; 109. a movable stripper plate; 110. a second hydraulic cylinder; 111. a housing; 112. a thermocouple; 301. nitrogen sealing of the bearing; 302. introducing nitrogen pipeline; 303. a nitrogen interface; 501. a compressed air interface; 502. a kiln top gas interface; 701. a combustion-supporting air interface; 702. a kiln bottom gas connector.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

The utility model provides a novel energy-conserving alloy baking equipment of automatic even heating, as figure 1 and figure 2, including alloy kiln 4, alloy kiln 4's casing 111 comprises the thick steel sheet, and alloy kiln 4 below is provided with kiln body support 5 and supports, leaves the clearance in alloy kiln 4 below, alloy kiln 4 top is equipped with kiln top movable cover 101, and kiln top movable cover 101 articulates the top at alloy kiln 4, and kiln top movable cover 101 top is provided with pneumatic cylinder 102, and the piston rod end of pneumatic cylinder 102 is connected on kiln top movable cover 101, and articulated position is kept away from to its hookup location, makes things convenient for pneumatic cylinder 102 to control the upset of kiln top movable cover 101 to this controls opening and closure of alloy kiln 4.

Punching at the both sides center of alloy kiln 4, at downthehole rotation axis 103 of installing, outside alloy kiln 4 was extended to one side of rotation axis 103, rotation axis 103 passed through the bearing at the 4 internal rotations of alloy kiln, and two junctions of rotation axis 103 and alloy kiln 4 are provided with nitrogen gas plugging device, nitrogen gas plugging device seals 301 for the bearing nitrogen, and the bearing nitrogen seals 301 and sets up on the bearing, and the bearing nitrogen seals 301 external connection has logical nitrogen pipeline 302, leads to nitrogen pipeline 302 and sets up in alloy kiln 4 side, and it is fixed to carry out the shutoff to the one side that rotation axis 103 did not surpass the alloy kiln simultaneously, leads to still being provided with nitrogen gas interface 303 on the nitrogen pipeline 302, and the external nitrogen gas source of nitrogen gas interface 303 uses nitrogen gas plugging device to prevent to spill over at the in-process coal gas of toasting, safe science.

Be provided with a plurality of stirring posts 104 on the rotation axis 103, stirring post 104 is T shape structure, and crisscross the setting, and the trailing end connection of T shape structure is on rotation axis 103, and the T shape head of T shape structure stirs, can increase its stirring scope.

A kiln top pipeline 105 is arranged above the rotating shaft 103, a plurality of kiln top nozzles 106 are arranged at the bottom of the kiln top pipeline 105, the kiln top nozzles 106 are vertically arranged, one side of the kiln top pipeline 105 extends out of the outer side of the alloy kiln 4, a compressed air interface 501 and a kiln top gas interface 502 are further arranged on the part extending out of the alloy kiln 4, and compressed air drives gas to be sprayed out of the kiln top nozzles 106 to bake fire, so that smooth heating and baking are guaranteed. Meanwhile, the positions of the stirring column 104 and the kiln top nozzle 106 are staggered, so that the stirring column 104 is prevented from interfering with the kiln top nozzle 106 in the rotating process, and meanwhile, the kiln top nozzle 106 is ensured to directly bake the alloy material. Furthermore, in order to ensure uniform and convenient feeding of heating, two kiln top pipelines 105 are symmetrically arranged at the middle positions of two sides of the alloy kiln 4, blanking spaces for alloy materials are reserved at the middle positions, the distance between the middle positions is larger than the width of a blanking port and is staggered with the position of the blanking port, the kiln top pipelines 105 are arranged in parallel with the rotating shaft 103, the two kiln top pipelines 105 are arranged at two sides for baking and heating, the middle blanking position is reserved for facilitating blanking, and meanwhile, in order to prevent the alloy materials from being damaged and injured in the blanking process, smashing prevention devices are arranged at the top of the kiln top pipelines 105.

Kiln bottom pipelines 107 are arranged below the rotating shaft 103, two kiln bottom pipelines 107 are arranged and symmetrically arranged on two sides of the alloy kiln 4, the kiln bottom pipelines 107 are arranged in parallel with the rotating shaft 103, one side of each kiln bottom pipeline 107 extends out of the alloy kiln 4, kiln bottom nozzles 108 are further arranged on the kiln bottom pipelines 107, the kiln bottom nozzles 108 are horizontally arranged, a space is reserved between the kiln bottom nozzles 108 on the two sides, alloy materials can enter the middle space, a combustion-supporting air connector 701 and a kiln bottom gas connector 702 are further arranged on the part extending out of the alloy kiln 4, the mixed combustion-supporting air and gas are ejected from the kiln bottom nozzles 108 to bake the alloy materials, and the alloy materials are baked from the lower part and the side part.

The bottom of the alloy kiln 4 is provided with a movable discharging plate 109, the movable discharging plate 109 is hinged to the bottom of the alloy kiln 4, a second hydraulic cylinder 110 is arranged below the movable discharging plate 109, the end of a piston rod of the second hydraulic cylinder 110 is connected to the movable discharging plate 109, the connecting position of the second hydraulic cylinder 110 is far away from the hinged position, and the movable discharging plate 109 is conveniently controlled to overturn and discharge.

Further, a thermocouple 112 is further arranged on the side face of the alloy kiln 4, the thermocouple 112 is connected with a temperature display instrument, the alloy baking temperature can be monitored in the baking process, and the control is convenient through the display of the temperature instrument.

One side of the rotating shaft 103 extending out of the alloy kiln 4 is connected with a motor 2 and a speed reducer 3 for driving, and is also provided with an electric control cabinet 1 for controlling the motor 2. The motor 2 is connected with the speed reducer 3 to control the rotating shaft 103 to rotate slowly.

The working principle of the embodiment of the utility model is as follows: after the loading amounts of molten iron and scrap steel are determined, the alloy addition amount is calculated, the alloy material is conveyed to a baking kiln by a forklift, the hydraulic cylinder I102 is contracted through the electric control cabinet 1, the kiln top movable cover 101 is opened, the kiln top movable cover 101 is closed after the alloy material is added, automatic baking is started, a kiln top pipeline 105 and a kiln bottom pipeline 107 are adjusted, and the baking size is controlled. Meanwhile, the motor 2 is turned on through the electric control cabinet 1 to drive the rotating shaft 103 and the stirring column 104 to rotate at a uniform speed (0.5 rpm), so that a good uniform stirring and heating effect is achieved. The alloy baking temperature is observed through a thermocouple 112, a second hydraulic cylinder 110 is controlled during tapping, the movable discharging plate 109 is opened, and the alloy which is burned to be red enters a ladle.

The utility model has scientific and reasonable design and low cost; after the alloy kiln is covered, flame and coal gas are prevented from overflowing from the upper part, safety and energy conservation are realized, and the baking efficiency is improved; the nitrogen blocking device prevents coal gas from overflowing in the baking process, and is safe and scientific; the kiln top pipeline and the kiln bottom pipeline are matched with the nozzle to spray out baking fire, so that the operation is reliable and stable, and the failure rate is low; the alloy is almost completely burnt to be red by uninterrupted stirring when the furnace works, the baking speed is greatly improved in limited baking time, the requirement of fast-paced steelmaking is met, coal gas is saved, and the furnace is green and environment-friendly; the operation is simple and convenient, and the working requirement is met.

Finally, it should be noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that the utility model has been described in detail with reference to preferred embodiments, and that those skilled in the art will be able to understand that all modifications and equivalent arrangements not described in detail in the embodiment of the utility model are within the scope of the appended claims.

Claims

1. The utility model provides a novel automatic even heating energy-conserving alloy baking equipment, includes alloy kiln (4), and alloy kiln (4) below is provided with kiln body support (5) and supports, its characterized in that, alloy kiln (4) top is equipped with kiln top movable cover (101), punches at the both sides center of alloy kiln (4), installs rotation axis (103) in the hole, and rotation axis (103) are through the bearing at alloy kiln (4) internal rotation, is provided with a plurality of stirring post (104) on rotation axis (103), and two junctions of rotation axis (103) and alloy kiln (4) are provided with nitrogen gas plugging device, and kiln top pipeline (105) are provided with to rotation axis (103) top, and kiln top pipeline (105) bottom is provided with a plurality of kiln top nozzles (106), kiln top nozzle (106) vertical setting, and the below of rotation axis (103) is provided with kiln bottom pipeline (107), kiln bottom pipeline (107) are provided with two, the symmetry sets up the both sides in alloy kiln (4), still is provided with kiln end nozzle (108) on kiln end pipeline (107), kiln end nozzle (108) level sets up, and the bottom of alloy kiln (4) is provided with movable stripper (109), and one side of rotation axis (103) is connected with motor (2) and speed reducer (3) and drives, still is provided with automatically controlled cabinet (1) and controls motor (2).

2. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 1, characterized in that a hydraulic cylinder I (102) is arranged above the movable cover (101) on the kiln top, and the movable cover (101) on the kiln top is controlled to turn over by the hydraulic cylinder I (102).

3. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 1, wherein the stirring columns (104) are T-shaped and staggered.

4. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 1, wherein the nitrogen blocking device is a bearing nitrogen seal (301), a nitrogen pipeline (302) is arranged outside the bearing nitrogen seal (301), the nitrogen pipeline (302) is arranged on the side of the alloy kiln (4), and a nitrogen interface (303) is further arranged on the nitrogen pipeline (302).

5. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 1, wherein the part of the kiln top pipeline (105) extending out of the alloy kiln (4) is further provided with a compressed air interface (501) and a kiln top gas interface (502).

6. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 5, wherein two kiln top pipelines (105) are symmetrically arranged at the middle positions of two sides of the alloy kiln (4) and are arranged in parallel with the rotating shaft (103), and the top of each kiln top pipeline (105) is provided with an anti-smashing device.

7. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 1, wherein a part of the kiln bottom pipeline (107) extending out of the alloy kiln (4) is further provided with a combustion-supporting air interface (701) and a kiln bottom gas interface (702).

8. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 7, wherein the kiln bottom pipeline (107) is arranged in parallel with the rotating shaft (103).

9. The novel automatic uniform heating energy-saving alloy baking device as claimed in claim 1, wherein a second hydraulic cylinder (110) is arranged below the movable discharging plate (109), and the second hydraulic cylinder (110) controls the movable discharging plate (109) to overturn and discharge.

10. The novel automatic uniform heating energy-saving alloy baking device as claimed in any one of claims 1 to 9, wherein a thermocouple (112) is further arranged on the side surface of the alloy kiln (4), and the thermocouple (112) is connected with a temperature display instrument.