CN205718491U - A kind of material off-line heat smoke preheating device - Google Patents

A kind of material off-line heat smoke preheating device Download PDF

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Publication number
CN205718491U
CN205718491U CN201620629426.8U CN201620629426U CN205718491U CN 205718491 U CN205718491 U CN 205718491U CN 201620629426 U CN201620629426 U CN 201620629426U CN 205718491 U CN205718491 U CN 205718491U
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CN
China
Prior art keywords
preheating
preheating chamber
door
heat smoke
smoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620629426.8U
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Chinese (zh)
Inventor
黄其明
谈存真
高瞻
施维枝
张豫川
刘春霆
艾磊
林伟
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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Priority to CN201620629426.8U priority Critical patent/CN205718491U/en
Application granted granted Critical
Publication of CN205718491U publication Critical patent/CN205718491U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a kind of material off-line heat smoke preheating device, belong to metallurgical technology field, device includes that preheating chamber, feeding device and material receiving device, described preheating chamber are 30 ° of settings with electric arc furnace isolation and horizontal by minimum angle.Owing to preheating chamber of the present utility model and electric arc furnace are that isolation is arranged, it is not necessary to change furnace binding, original production procedure and smelt pattern, only waste heat recovery need to can be realized with electric arc furnace by pipeline communication;This simple in construction, to transform little, small investment, cost recovery fast;By the control to flue gas, its margin of safety and mobility are high, adaptable.

Description

A kind of material off-line heat smoke preheating device
Technical field
This utility model belongs to metallurgical technology field, is specifically related to a kind of material off-line heat smoke preheating device.
Background technology
Energy-saving and cost-reducing, environmental protection in electric-arc furnace steelmaking, automatization be all the time EAF steelmaking technology development core technology it One.
Electric-arc furnace steelmaking power-saving technology is shortened the heat, airtight covered charging, reduce charging times, steel scrap cigarette Gas preheating etc. is the power-saving technology in common production technology.Wherein, the electric arc furnace steel scrap flue gas risen from the eighties in last century Preheating technology is typical power-saving technology, Typical Representative such as finger shaft (DE4025249A1-1992), vibration continuous charging CONSTEEL (US5400358-1992), vertical shaft side push away charging (US2007/0013112A1) etc., these scrap steel preheating technology Use, reduce the melting electric consumption of electric arc furnace.
But in actually used, reducing investment for trnasforming urban land, maintaining original production procedure and pattern, the whole production system of raising The aspects such as reliability, all there is different defects in above-mentioned online scrap steel preheating technology, online preheating technology exists certain restriction And restriction, therefore, it is necessary to develop off-line preheating technology, to solve drawbacks described above.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of material off-line heat smoke preheating device, can Change former furnace equipment, flow process and pattern and can realize heat recovery, change in minimizing solving existing online preheating technology Make investment, the defect maintaining the aspects such as original production procedure and pattern to exist, reduce and use restriction and limit, expand its application model Enclose.
For reaching above-mentioned purpose, the purpose of this utility model is achieved through the following technical solutions:
A kind of material off-line heat smoke preheating device, including preheating chamber, feeding device and material receiving device, described preheating chamber with Electric arc furnace is isolated and is 30 ° of settings horizontal by minimum angle,
Described preheating chamber is provided with feeding seal door and backgauge hermatic door, and smoke inlet and exhanst gas outlet, described cigarette Gas entrance is arranged on the bottom section of preheating chamber, and described exhanst gas outlet is arranged on the top area of preheating chamber,
At least provided with a smoke inlet on the sidewall of the preheating chamber above backgauge hermatic door, it is connected with smoke inlet Enter flue and tilt upward setting,
Described material receiving device is arranged on the lower section of backgauge hermatic door;Described backgauge hermatic door is arranged on the bottom of preheating chamber, The sealing of blanking and preheating chamber and outside air is kept off for lattice;
Described feeding device is arranged on the top of feeding seal door, and described feeding seal door is arranged on the top of preheating chamber, For the material stopped and receive in feeding device and with the sealing of outside air.
Further, described smoke inlet is by the high heat smoke pipeline of controlled flue gas and electric arc furnace or hot-gas generator Connection;Described exhanst gas outlet is connected with discharge flue by the low-temperature flue gas pipeline of controlled flue gas, described high heat smoke pipeline, low Temperature flue can be provided with regulation valve.
Further, described high heat smoke pipeline connects with discharge flue, forms fume emission bypass, bypasses at fume emission On can be provided with regulation valve.
Further, described backgauge hermatic door is swinging arc door.
Further, described backgauge hermatic door is insertion plate door.
Further, described backgauge hermatic door is plate-turning door.
Further, the smoke inlet connected with entrance flue is one section of circumferential weld.
Further, it is provided with vibrator in described preheating chamber, and is arranged on elastic support.
Further, described preheating chamber, smoke inlet are equipped with auxiliary burning nozzle.
The beneficial effects of the utility model are:
Owing to preheating chamber of the present utility model and electric arc furnace are that isolation is arranged, it is not necessary to change furnace binding, original production Flow process and smelting pattern, only need to can realize waste heat recovery with electric arc furnace by pipeline communication;This simple in construction, transform little, throw Money less, cost recovery fast;By the control to flue gas, its margin of safety and mobility are high, adaptable.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of material off-line heat smoke preheating device first embodiment;
Fig. 2 is the schematic diagram of the pre-Warm status of this utility model;
Fig. 3 is the structural representation of this utility model preheating chamber;
Fig. 4 is the structural representation of this utility model backgauge hermatic door;
Fig. 5 is the structural representation of this utility model the most double plate-turning door of the second embodiment;
Fig. 6 is the structural representation of this utility model the 3rd embodiment upright double pendulum arc door;
Fig. 7 is the schematic diagram of off-line warm.
Description of reference numerals:
1-preheating chamber;2-feeding device;3-material receiving device;4-electric arc furnace;5-feeding seal door;6-backgauge hermatic door;6a- Door-plate;6b-swing arm;6c-rotating shaft;6d-drive mechanism;7-smoke inlet;8-exhanst gas outlet;9-height heat smoke pipeline;10-low temperature Flue;11-discharge flue;12-exhanst gas outlet regulation valve;13-smoke inlet regulation valve;14-fume emission bypasses;15- Bypass smoke regulating valve;16-auxiliary burning nozzle;17-vibrator;18-elastic support;19-locomotive;20-burden-guiding cone.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Embodiment 1, as Figure 1-4:
A kind of material off-line preheating device of the present embodiment, it includes preheating chamber 1, feeding device 2 and material receiving device 3, in advance Hot cell 1 is arranged with electric arc furnace 4 isolation, and i.e. both are separated from each other, from a distance, can be arranged as required to specifically away from From, such as 10m, 20m, 30m, 40m ..., such setting so that without changing furnace binding, original production procedure and smelting mould Formula, only need to can realize waste heat recovery with electric arc furnace by pipeline communication;Meanwhile, preheating chamber tiltable arranges or uprightly arranges, But with the angle α ° optimum of horizontal plane in the range of 30 °~90 °, the effect of smooth blanking can be reached.
Under special circumstances, as distance electric arc furnace is too remote, conveying flue is long, when heat smoke cooling seriously cannot utilize, Directly can also replace electric arc furnace 4 with heat smoke generator, it is achieved the supply of heat smoke.
The preheating chamber 1 of the present embodiment is provided with feeding seal door 5 and backgauge hermatic door 6, and smoke inlet 7 and flue gas go out Mouth 8, smoke inlet 7 is arranged on the bottom section of preheating chamber 1, and is connected with electric arc furnace by the high heat smoke pipeline 9 of controlled flue gas Logical;Exhanst gas outlet 8 is arranged on the top area of preheating chamber, and passes through low-temperature flue gas pipeline 10 and the discharge flue 11 of controlled flue gas Connection;Concrete, the present embodiment is provided with exhanst gas outlet regulation valve 12 on low-temperature flue gas pipeline 10, at high heat smoke pipeline 9 On be arranged on smoke inlet regulation valve 13, also high heat smoke pipeline 9 is connected with discharge flue 11 meanwhile, formation fume emission Bypass 14, and bypass smoke regulating valve 15 is set in fume emission bypass 14, regulate flue gas by bypass smoke regulating valve 15 Enter the total amount of preheating chamber.
The material receiving device 3 of the present embodiment is arranged on the lower section of backgauge hermatic door 6;Backgauge hermatic door 6 is arranged on preheating chamber 1 Bottom, keeps off the sealing of blanking and preheating chamber and outside air for lattice;Feeding device 2 is arranged on the top of feeding seal door 5, enters Material hermatic door 5 is arranged on the top of preheating chamber, for the material stopping and receiving in feeding device.Certainly, according to production scene Needing, material receiving device, feeding device can be portable, and the most just transhipment comes, and can reduce site space Take.
The present embodiment is also provided with auxiliary burning nozzle 16 at the sidewall of preheating chamber and smoke inlet, can be as desired by auxiliary Burner 16 can add heat smoke or material further, it is ensured that the pre-heat effect of material.
As the improvement of the present embodiment, the backgauge hermatic door of the present embodiment is a fan swinging arc door, as it is shown on figure 3, it includes Door-plate 6a and swing arm 6b, one end of swing arm 6b fixes with door-plate 6a, and the other end is rotatable fixing by rotating shaft 6c, drive mechanism 6d It is arranged on swing arm 6b.
It is of course also possible to be set to insertion plate door according to by backgauge hermatic door, can be by the discharging opening setting at preheating chamber Track is inserted directly into, and makes operation simpler.
As the improvement of the present embodiment, as in figure 2 it is shown, two sidewalls of the preheating chamber 1 above backgauge hermatic door 2 are respectively arranged with One smoke inlet 7, the entrance flue being connected with smoke inlet 7 tilts upward setting, it can be ensured that material does not pours in down a chimney, during blowing Material can skid off automatically.
As the improvement of the present embodiment, it is provided with vibrator 17 in preheating chamber, and is arranged on elastic support 18, elastic support 18 constitute vibrational system together with vibrator 17, to preheating chamber 1 inclination angle less time the forced vibration to material can be provided to carry.
For reducing or preventing material landing from clashing into edgewise probability of happening under smoke inlet, loudspeaker can be made down in preheating chamber bottom Mouthful, bell-mouthed sidewall and angle β ° of vertical direction, and the smoke inlet sidewall of preheating chamber is substantially expanded to both sides or dashes forward Becoming expansion (not drawing in figure), two side is γ °, as shown in Figure 2 with the angle of vertical direction.
Embodiment 2, as shown in Figure 5:
The present embodiment preheating chamber as different from Example 1 is uprightly arranged, and sealing stock stopping door is two fan plate-turning door structures, is subject to Material device, in the underface of preheating chamber, after preheating chamber is to material receiving device (as the material on electric furnace is blue) charging, is moved by locomotive 19 At electric arc furnace.The present embodiment have employed two fan plate-turning doors, can effectively expand the volume of preheating chamber, in the condition of same volume It is shorter and smaller that lower preheating chamber does, and plate-turning door also has the function of buffering material impact.
Additionally, exhanst gas outlet is had been moved on feeding seal door by the present embodiment, reduce material during charging to exhanst gas outlet Impact and blocking.
Embodiment 3, as shown in Figure 6:
It is two fan swinging arc doors that the present embodiment seals stock stopping door as different from Example 1, each smoke inlet be one section The circumferential weld of sidewall bottom preheating chamber, takes circumferential weld structure can strengthen breathability and uniformity, owing to circumferential weld smoke inlet makes Heat smoke range of scatter is greatly increased so that the uniformity in plume penetration material gap obtains good improvement, adds ventilative Area, reduces the flue gas resistance by material;The biggest aisle spare, can arrange more auxiliary burning nozzle, so that Being strengthened of chemical energy must be supplemented.
Exhanst gas outlet can also be local ring crack structure, to reduce equipment total height.
It addition, this utility model can also arrange burden-guiding cone 20 between preheating chamber and splicing container, can more easily by Material imports, and improves efficiency, and minimizing material spills or wastes.
In this figure, scrap preheater is arranged on the platform of certain altitude, and material receiving device 3 is placed in energy on locomotive 19 Enough lower sections through preheating device and support platform thereof are moved, and at the end of scrap steel preheating, material receiving device 3 arrives the pre-of preheating device Below hot cell 1, the material after preheating is quickly added in material receiving device 3 by preheating device, and thermal material and material feeding are filled by locomotive 19 Put 3 transport to meltshop load electric arc furnace smelt.
Use above-mentioned material off-line preheating device to carry out the pre-heating mean of material, comprise the following steps:
1) charging: open feeding seal door, receives the material in feeding device, as shown in Figure 7;
2) off-line preheating: after having fed, is imported the high heat smoke of electric arc furnace at the bottom of preheating chamber by high heat smoke pipeline Portion, high heat smoke sequentially passes through material bottom preheating chamber, preheats material, and the flue gas being up to preheating chamber top goes out Mouthful, become low-temperature flue gas, enter discharge flue from low-temperature flue gas pipeline and discharged preheating, such as Fig. 2, shown in 7, when needs are to cigarette When tolerance is adjusted or controls, can be by exhanst gas outlet regulation valve, smoke inlet regulation valve and bypass smoke regulating valve, to entering Enter the amount of flue gas emission of preheating chamber, temperature of charge is adjusted and controls;
Certainly, when heating flue-gas temperature is too low material cannot be made to reach design temperature time, can be heated by auxiliary burning nozzle Flue gas or heated material or both heat simultaneously, it is ensured that the pre-heat effect of material.
3) reclaim: open backgauge hermatic door and material is discharged into material receiving device by preheating chamber, then by material receiving device handling or It is transported at electric arc furnace with locomotive, in loading electric arc furnace, realizes heat recovery, as shown in Figure 7.
Finally illustrating, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, to the greatest extent This utility model is described in detail by pipe by above preferred embodiment, but those skilled in the art should manage Solve, in the form and details it can be made various change, without departing from this utility model claims institute The scope limited.

Claims (9)

1. a material off-line heat smoke preheating device, it is characterised in that: include preheating chamber, feeding device and material receiving device, institute State the isolation of preheating chamber and electric arc furnace and be 30 ° of settings horizontal by minimum angle,
Described preheating chamber is provided with feeding seal door and backgauge hermatic door, and smoke inlet and exhanst gas outlet, and described flue gas enters Mouth is arranged on the bottom section of preheating chamber, and described exhanst gas outlet is arranged on the top area of preheating chamber,
At least provided with a smoke inlet, the entrance being connected with smoke inlet on the sidewall of the preheating chamber above backgauge hermatic door Flue tilts upward setting,
Described material receiving device is arranged on the lower section of backgauge hermatic door;Described backgauge hermatic door is arranged on the bottom of preheating chamber, is used for Lattice keep off the sealing of blanking and preheating chamber and outside air;
Described feeding device is arranged on the top of feeding seal door, and described feeding seal door is arranged on the top of preheating chamber, is used for The material that stops and receive in feeding device and the sealing with outside air.
A kind of material off-line heat smoke preheating device the most according to claim 1, it is characterised in that: described smoke inlet leads to The high heat smoke pipeline crossing controlled flue gas connects with electric arc furnace or hot-gas generator;Described exhanst gas outlet passes through controlled flue gas Low-temperature flue gas pipeline connect with discharge flue, described high heat smoke pipeline, low-temperature flue gas pipeline are provided with regulation valve.
A kind of material off-line heat smoke preheating device the most according to claim 2, it is characterised in that: described high thermal chimney Road connects with discharge flue, forms fume emission bypass, is provided with regulation valve in fume emission bypass.
A kind of material off-line heat smoke preheating device the most according to claim 1, it is characterised in that: described backgauge hermatic door For swinging arc door.
A kind of material off-line heat smoke preheating device the most according to claim 1, it is characterised in that: described backgauge hermatic door For insertion plate door.
A kind of material off-line heat smoke preheating device the most according to claim 1, it is characterised in that: described backgauge hermatic door For plate-turning door.
A kind of material off-line heat smoke preheating device the most according to claim 1, it is characterised in that: connect with entering flue Smoke inlet be one section of circumferential weld.
A kind of material off-line heat smoke preheating device the most according to claim 1, it is characterised in that: set in described preheating chamber There is vibrator, and be arranged on elastic support.
A kind of material off-line heat smoke preheating device the most according to claim 1, it is characterised in that: described preheating chamber, cigarette Gas entrance is equipped with auxiliary burning nozzle.
CN201620629426.8U 2016-06-23 2016-06-23 A kind of material off-line heat smoke preheating device Withdrawn - After Issue CN205718491U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620629426.8U CN205718491U (en) 2016-06-23 2016-06-23 A kind of material off-line heat smoke preheating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620629426.8U CN205718491U (en) 2016-06-23 2016-06-23 A kind of material off-line heat smoke preheating device

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953592A (en) * 2016-06-23 2016-09-21 中冶赛迪工程技术股份有限公司 Material off-line hot smoke preheating device and preheating method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105953592A (en) * 2016-06-23 2016-09-21 中冶赛迪工程技术股份有限公司 Material off-line hot smoke preheating device and preheating method thereof

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Granted publication date: 20161123

Effective date of abandoning: 20180605