CN103243188A

CN103243188A - Method and device for material distribution of blast furnace bell-less top

Info

Publication number: CN103243188A
Application number: CN2012100317582A
Authority: CN
Inventors: 吴蔓洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-10
Filing date: 2012-02-10
Publication date: 2013-08-14

Abstract

The invention relates to a method and device for material distribution of a blast furnace bell-less top. The method and the device are used for solving the problems in the prior art that a material distribution device is complicated in structure, inconvenient to operate and the like due to the need of two movement inputs. The method involves a chute-rotation material distribution manner and is characterized in that the inclination angle and material distribution radius of a chute are determined through the rotation of the chute by one movement input. The device comprises a feeding pipe and a rotary chute, wherein the feeding pipe is fixed on a device shell. The device is characterized in that a chute rotating rack is arranged between the feeding pipe and the rotary chute, the lower part of the chute rotating rack is hinged to the chute and is correspondingly hinged with a balancing device, and the chute rotating rack is controlled by a chute rotation driving device. According to the method, the omni-directional material distribution of the rotary chute on a furnace throat section of a blast furnace is realized through changing the rotating inclination angle and material distribution radius of the chute. The device has the advantages of simple structure, easiness in operation, small volume, little maintenance, low energy consumption, low construction cost and the like. The method and the device can be widely applied to the material distributing operation of various blast furnace bell-less tops.

Description

A kind of process for charging in bell-less top of blast furnace and distributor

Technical field:

The invention belongs to blast furnace does not have clock stove cloth production technical field, and the distribution device that is specifically related to a kind of distributing process that does not have a clock furnace roof and this method of enforcement is distributor.

Technical background:

Blast furnace does not have clock stove production technique, requires raw material layer and coke layer on the blast furnace throat section reasonable distribution should be arranged, and therefore, the distributing process of no clock furnace roof and distribution device are just most important.In the prior art, charging in bell-less top all adopts the rotation distributing process, namely above no clock furnace roof, settle swivel chute, change the size at chute inclination angle by the swing of chute, determine the rotation radius of chute by the inclination angle size that changes chute, by the variation of chute rotation radius, finish reasonable cloth task on the blast furnace throat section with it.At present, have multiplely though it implements the distribution device of this method or distributor, its technical spirit is by chute rotation and swing and realizes cloth.Common have a dual mode: a kind of is to utilize planet circular system to realize chute rotation and swing; Another kind is by vertical movement and rotatablely moves to realize chute rotation and swing.The common feature of two kinds of charging in bell-less top devices is: they all must have two motion inputs, namely synthesize to realize the rotation cloth of chute on a certain radius circumference of blast furnace throat section by two kinds of mechanical movements.Aforesaid prior art exists open defect: namely because they need have two motion inputs, therefore determine them must have two kinds of mechanism systems simultaneously at least, this just must cause the charging in bell-less top device in other words distributor have complex structure, complicated operation, bulky, maintenance capacity is big, and power consumption is high, problems such as cost height.In fact, distributor of the prior art, using in production reality, " the charging in bell-less top of blast furnace device " of Chinese patent: ZL97107046.6 and ZL01108050.7 disclosed " swing runner type charging in bell-less top of blast furnace device " and ZL200320104525.7 bulletin etc. are also like this invariably.This just points out people, and existing charging in bell-less top Technology Need improves.

Summary of the invention:

The objective of the invention is, at the defective of prior art, provide the distributor of a kind of process for charging in bell-less top of blast furnace with this method of enforcement.Said distributing process only needs a motion input can finish the cloth operation of prior art; Said distributor has simple in structure, processing ease, plurality of advantages such as volume is little, and maintenance capacity is little, and energy consumption is low, and cost is low.

The technical solution of the inventive method is: a kind of process for charging in bell-less top of blast furnace, be chute rotation distributing mode, and it is characterized in that: the angle of inclination of chute and cloth radius are determined by the rotation of chute by a motion input.

The technical solution of implementing the distributor of aforesaid method is: a kind of charging in bell-less top of blast furnace device, comprise the tremie pipe and the swivel chute that are fixed on the distributor housing, it is characterized in that: between tremie pipe and swivel chute, be provided with the chute swivel mount, chute swivel mount lower hinge chute, and corresponding hinged equilibrator, the chute swivel mount is controlled by the chute rotating driving device.

Principle of work of the present invention is as follows: when distributor did not have the motion input, chute remained static, at this moment the inclination angle minimum of chute.And when the chute rotating driving device rotated, namely when a motion input, chute then rotated thereupon.Along with change in rotational speed, chute is under the acting in conjunction of gravity and centrifugal force, and its angle of inclination just changes thereupon.Make centrifugal force become big if the rotating speed of chute swivel mount increases, then the inclination angle of chute becomes big, and it is big that the cloth radius becomes; If chute swivel mount rotating speed lowers centrifugal force is diminished, then the inclination angle of chute diminishes, and the cloth radius diminishes; Be that centrifugal force is constant if chute swivel mount rotating speed is constant, then the inclination angle of chute is constant, and the cloth radius is constant.That is to say that the angle of rotation of chute and cloth radius are finished with the rotation of chute self simultaneously because of a motion input.Hence one can see that, changes inclination angle and the cloth radius of chute by the rotating speed that changes the chute swivel mount, so namely can realize the comprehensive cloth of swivel chute on the blast furnace throat section, can arbitrarily carry out reasonable cloth.

Compared with prior art, the present invention is owing to have only a middlebrow input that rotatablely moves, remove operation and the building-up process of two kinds of mechanical movements in the prior art, and as long as can realize the comprehensive cloth of swivel chute on the blast furnace throat section by the rotating speed that changes the chute swivel mount.Therefore, not only simple in structure, volume is little, is convenient to manufacture, Installation and Debugging and applicating maintenance.And processing ease, easy to use, can regulate the cloth situation at any time.Both reduce working link and the subsystem of prior art, saved time and the space, can reduce failure rate and maintenance rate again, improved stability and the reliability of equipment.Its plurality of advantages such as also to have energy consumption low, and cost is low simultaneously.Easy to utilize.

Description of drawings:

Fig. 1 is the structural representation under distributor of the present invention remains static.

Fig. 2 is the structural representation under distributor of the present invention is kept in motion.

Fig. 3 is the right view of Fig. 2.

Fig. 4 is the front view of chute swivel mount.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the vertical view of Fig. 4.

Fig. 7 is the structural representation of chute.

Fig. 8 is that the A-A of Fig. 7 cuts open right view.

Fig. 9 is that the B-B of Fig. 7 cuts open left view.

Embodiment:

Embodiment: a kind of process for charging in bell-less top of blast furnace provided by the invention, its essence are the chute rotation distributing mode of prior art, it is characterized in that: the angle of inclination of this chute and cloth radius are determined by the rotation of chute by a motion input.Because the length of chute is certain, therefore when one timing of the inclination angle of chute, its cloth radius is just determined simultaneously.Just can realize swivel chute comprehensive (except the centre) cloth on the blast furnace throat section by the inclination angle and the cloth radius that change chute.

Below in conjunction with accompanying drawing charging in bell-less top device provided by the invention is elaborated.

Shown in Figure 2 as Fig. 1, this charging in bell-less top of blast furnace device, comprise the tremie pipe 1 and the swivel chute 3 that are fixed on the distributor housing 5, it is characterized in that: between tremie pipe 1 and swivel chute 3, be provided with chute swivel mount 2, chute swivel mount 2 lower hinge chutes 3, and corresponding hinged equilibrator 6, chute swivel mount 2 is controlled by chute rotating driving device 4.As Fig. 4-shown in Figure 6, said chute swivel mount 2 here, its underpart is provided with two hangers, can symmetry be installed by two axles, and one of them is the hinged chute 3 of axle, and another is the hinged equilibrator 6 of axle.As Fig. 7-shown in Figure 9, said swivel chute 3 here, its two ends are open-type, with the blanking of accepting tremie pipe 1 with to the body of heater cloth.Its middle and lower part is enclosed construction, and is on-stream excessive to prevent furnace charge.Here said chute rotating driving device 4 adopts existing techniques in realizing, and its function is to provide motion and different rotating speeds according to the needs that cloth is operated.

Use and the working process of distributor of the present invention are: press the required feed location of furnace charge, adjust inclination angle and the cloth radius of chute 3 by the speed of rotation that changes chute swivel mount 2, make itself and cloth circumference produce corresponding relation, furnace charge is joined on the feed location of being scheduled in the stove by chute 3 by fixing tremie pipe 1.The centrifugal force opposite sign but equal magnitude of the centrifugal force of equilibrator 6 and chute 3, thus guarantee that distributor operates steadily.

This distributor can be widely used in the cloth operation that various blast furnaces do not have the clock furnace roof.

Claims

1. a process for charging in bell-less top of blast furnace is chute rotation distributing mode, and it is characterized in that: the angle of inclination of chute and cloth radius are determined by the rotation of chute by a motion input.

2. charging in bell-less top of blast furnace device of implementing aforesaid method, comprise the tremie pipe (1) and the swivel chute (3) that are fixed on the distributor housing (5), it is characterized in that: between tremie pipe (1) and swivel chute (3), be provided with chute swivel mount (2), chute swivel mount (2) lower hinge chute (3), and corresponding hinged equilibrator (6), chute swivel mount (2) is controlled by chute rotating driving device (4).

3. according to the distributor of claim 2, it is characterized in that: its middle and lower part of said chute (3) is enclosed construction.