CN210560519U - Negative-pressure coke sucking device for blast furnace hearth - Google Patents

Abstract

The utility model relates to a negative-pressure coke suction device for a blast furnace hearth, which comprises a suction pipe, an aggregate discharge box and a conveying device, wherein the suction pipe extends into the bottom of the blast furnace hearth and is connected with the aggregate discharge box through a connecting hose, the conveying device is connected with the bottom of the aggregate discharge box, a pipe pressing wheel 3 and a pipe supporting wheel are arranged on the suction pipe, and the suction pipe is positioned by adjusting the pipe pressing wheel and the pipe supporting wheel; the technical scheme solves the defects in the traditional process, utilizes the kinetic energy generated by proper negative pressure and wind speed to adsorb and collect coke, and carries out absorption and transmission on high-temperature solid materials.

Description

Negative-pressure coke sucking device for blast furnace hearth

Technical Field

The utility model relates to an inhale the thing device, concretely relates to thing device is inhaled to blast furnace hearth coke negative pressure belongs to blast furnace hearth coke processing apparatus technical field.

Background

An important work content of the blast furnace during the maintenance and shutdown of the blast furnace is that the total amount of red coke at the bottom of a furnace hearth is discharged out of the furnace hearth within 300-330T (the volume is 550-600M 3) in time within a specified time, conditions are provided for repairing an iron notch and smoothly tapping after air recovery, the current domestic common method is that the furnace hearth is discharged by manual operation after the temperature of the furnace hearth is reduced to a proper temperature (below about 45 ℃), and the method is characterized in that: in order to change the traditional process with low efficiency and high risk, the current situation needs to be changed by inventing a safe, reliable, efficient and novel technology urgently;

to the knowledge of the applicant, the negative pressure conveying system disclosed in chinese patent application No. CN 105836741 a emphasizes the conveying of powder, and the negative pressure grain conveying pipeline disclosed in chinese patent application No. CN 203497740U emphasizes the negative pressure grain conveying pipeline, which cannot solve the technical problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a blast furnace hearth coke negative pressure suction device aiming at the problems existing in the prior art, which solves the defects in the traditional process, utilizes the kinetic energy generated by proper negative pressure and wind speed to adsorb and collect coke, and conveys the high-temperature solid material by suction.

In order to realize the above-mentioned purpose, the technical scheme of the utility model as follows, a blast furnace hearth coke negative pressure inhales thing device, a serial communication port, inhale thing device including inhaling the material and walk the pipe, gather materials and arrange material box and feeding device, inhale the material and walk the pipe and go deep into blast furnace hearth bottom, inhale the material and walk the pipe and arrange the material box through coupling hose and gather materials and be connected, feeding device connects the bottom of gathering materials and arranging the material box. This row material box that gathers materials utilizes gravity dust remover's theory of operation to gather materials and arrange the material to handle the furnace pot coke, and concrete way utilizes gravity dust remover to inhale the material, gathers materials, when gathering materials to certain material level, arranges the material, and whole box structure is established: the air speed reducing devices such as the spoiler and the flow blocking barrier also have the function of reducing the temperature of the wild wind, and the scheme can safely, reliably and efficiently finish the collection and transportation of the high-temperature coke under specific working conditions.

As an improvement of the utility model, inhale and expect to walk to be provided with on the walking pipe and walk a tub pinch roller and walk a tub riding wheel, realize the location to inhaling the material walking pipe through walking the regulation of tub pinch roller and walking tub riding wheel.

As an improvement of the utility model, the feeding device is arranged as a high throwing belt and arranged at the bottom of the aggregate discharge box body. In order to prevent the total height of the aggregate box body from being too high, a high-throwing belt is arranged at the lower part of the aggregate bin to transfer materials to a truck and then quickly refund from the site, once the aggregate box body sends a material level signal, the bin is emptied, and the unloading bin door is of a quick-opening structure so as to be convenient to operate.

As an improvement of the utility model, the suction device further comprises a negative pressure system, and the negative pressure system is connected with the outlet of the aggregate discharge box body.

As an improvement of the utility model, the material sucking running pipe is a seamless steel pipe.

As an improvement of the utility model, the connecting hose adopts wear-resisting high temperature resistant hose, walks the pipe with inhaling the material and adopts the formula of connecing soon buckle to connect. Once the pipeline needs to be disassembled, cleaned and dredged, the pipeline can be quickly realized to be used as a furnace-entering suction walking pipe, the walking pipe adopts a telescopic structure, and the walking pipe can realize the limitation of 6 degrees of freedom under the constraint of a pressing wheel and a riding wheel.

Compared with the prior art, the utility model has the advantages of, 1) inhale the material and walk the pipe and adopt seamless steel pipe, coupling hose adopts wear-resisting high temperature resistant hose, walks the pipe with inhaling the material and adopts quick-connect formula buckle to connect. Once the pipeline needs to be disassembled, cleaned and dredged, the pipeline can be quickly realized to be used as a furnace-entering suction walking pipe, the walking pipe adopts a telescopic structure, and the walking pipe can realize the limitation of 6 degrees of freedom under the constraint of a pressing wheel and a riding wheel; 2) the whole box structure is established: the air speed reducing devices such as the spoiler and the flow blocking barrier also have the function of reducing the temperature of the wild wind, and the scheme can safely, reliably and efficiently finish the collection and transportation of high-temperature coke under specific working conditions; 3) the technical scheme has the advantages of simple cost and structure, repeated use, high working efficiency, safety, environmental protection, no dust emission and the like, and has good comprehensive benefits; 4) the negative pressure makes full use of the existing blast furnace dust removal system, does not need an independent negative pressure supply device, is more economical and practical, and is beneficial to energy conservation and environmental protection.

Drawings

FIG. 1 is a schematic structural diagram of the negative pressure coke sucking device for blast furnace hearths.

Fig. 2 is a schematic view of a material sucking pipe.

Description of reference numerals: 1. a blast furnace hearth; 2. a material sucking and conveying pipe; 3. a pipe conveying pinch roller; 4. a pipe conveying riding wheel; 5. a connecting hose; 6. an aggregate discharge box body; 7. high-polishing the belt; 8. a negative pressure system.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the following detailed description is made with reference to the accompanying drawings.

Example 1: referring to fig. 1-2, the negative pressure coke suction device for the blast furnace hearth comprises a suction pipe, an aggregate discharge box and a material conveying device, wherein the suction pipe extends into the bottom of the blast furnace hearth and is connected with the aggregate discharge box through a connecting hose, and the material conveying device is connected with the bottom of the aggregate discharge box. This row material box that gathers materials utilizes gravity dust remover's theory of operation to gather materials and arrange the material to handle the furnace pot coke, and concrete way utilizes gravity dust remover to inhale the material, gathers materials, when gathering materials to certain material level, arranges the material, and whole box structure is established: the utility model discloses a high-temperature coke oven, including spoiler, choked flow barrier, the cooling effect of participating in the open air still has, and this scheme can accomplish collection and transportation to high temperature coke under the specific operating mode safely, reliably, high-efficiently, inhale and be provided with walking pipe pinch roller 3 and walking pipe riding wheel 4 on the material walking pipe, realize the location to the material walking pipe through the regulation of walking pipe pinch roller 3 and walking pipe riding wheel 4, conveyor sets up to high throwing belt 7, sets up in the bottom of gathering materials row material box. In order to be unlikely to the box overall height that gathers materials too high, so consider to set up the high throwing belt in the feed bin lower part of gathering materials and transport the material to the truck and refute from the scene fast immediately, in case the box that gathers materials sends material level signal back evacuation feed bin immediately, unloading door adopts quick-open structure in order to facilitate the operation, inhale the thing device and still include negative pressure system 8, negative pressure system and the exit linkage of the row's of gathering materials box, inhale the material and walk the pipe and adopt seamless steel pipe, coupling hose adopts wear-resisting high temperature resistant hose, and inhale the material and walk the pipe and adopt quick-connect formula buckle to connect. Once the pipeline needs to be disassembled, cleaned and dredged, the pipeline can be quickly realized to be used as a furnace-entering suction walking pipe, the walking pipe adopts a telescopic structure, and the walking pipe can realize the limitation of 6 degrees of freedom under the constraint of a pressing wheel and a riding wheel.

The working principle is as follows: referring to fig. 1-2, the material suction walking pipe 2 is arranged in a walking pipe pressing wheel 3 and a walking pipe supporting wheel 4, the material suction walking pipe 2 is positioned through an adjustable pressing wheel and supporting wheel assembly, the tail part of the material suction walking pipe 2 is connected with a special hose 5 and then is connected with an inlet of a material collection and discharge box body 6, an outlet of the material collection and discharge box body 6 is connected with a negative pressure system 8, and thus, the whole equipment installation is completed. The lower part of the aggregate discharge box body 6 is provided with a quick-open type bin gate to facilitate operation, and the discharge is transferred to a truck by a high-throwing belt 7 to be quickly refuted away from the site. The device can arrange 2 sets of furnace platforms on two sides to work simultaneously so as to increase the efficiency. According to the figure, the coke negative-pressure material suction device of the hearth is arranged on two sides of a blast furnace hearth, coke in the blast furnace hearth is subjected to two-way adsorption treatment, the material suction walking pipe can realize the positioning of 6 degrees of freedom under the restraint of a pressing wheel and a riding wheel, and once the coke enters a material collecting and discharging box body, the material collection and discharge of the coke are realized through the gravity settling principle.

Negative pressure adsorption, wherein a system fan provides proper negative pressure and wind speed, the wall of the material suction walking pipe is accompanied with a nitrogen purging pipe for cooling and stirring coke in a hearth, and once the coke is sucked into the material suction walking pipe, the coke is conveyed to a material collecting and discharging box body through a special connecting hose. And collecting and discharging materials, namely collecting materials by using a gravity settling principle after coke reaches a collecting and discharging box body, and arranging a material level controller in the box body to give out an audible and visual alarm when the material level reaches a specified height so as to accurately master the material level.

And the material discharging and conveying device is used for emptying the material bin once the material collecting box body sends a material level signal, and the lower part of the material collecting bin is provided with a high-throwing belt for transferring the material to a truck and then quickly refuting the material from the site.

The invention has the advantages of low investment, simple structure, repeated use, high working efficiency, safety, environmental protection, no dust emission and the like, and has good comprehensive benefit.

It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent changes and substitutions made on the basis of the above-mentioned technical solutions are within the scope of the present invention as defined in the claims.

Claims (7)

1. The utility model provides a blast furnace hearth coke negative pressure inhales thing device, its characterized in that, inhale the thing device including inhaling the material and walk the pipe, gather materials and arrange material box and feeding device, inhale the material and walk the pipe and go deep into blast furnace hearth bottom, inhale the material and walk the pipe and arrange the material box through coupling hose and gather materials and be connected, feeding device connects the bottom of gathering materials and arranging the material box.

2. The negative pressure coke suction device for the blast furnace hearth according to claim 1, wherein the suction walking pipe is provided with a walking pipe pinch roller and a walking pipe riding wheel, and the suction walking pipe is positioned by adjusting the walking pipe pinch roller and the walking pipe riding wheel.

3. The negative pressure suction device for coke in a blast furnace hearth according to claim 2, wherein the material conveying device is a high-throwing belt arranged at the bottom of the aggregate discharging box.

4. The blast furnace hearth coke negative pressure suction device according to claim 3, further comprising a negative pressure system connected to an outlet of the aggregate discharge bin.

5. The negative pressure suction device for the coke in the blast furnace hearth according to claim 3 or 4, wherein the suction pipe is a seamless steel pipe.

6. The negative pressure suction device for coke in a blast furnace hearth according to claim 5, wherein the connecting hose is a wear-resistant and high-temperature-resistant hose, and the suction pipe and the feed pipe are quick-connection type snap joints.

7. The negative pressure suction device for the coke in the blast furnace hearth according to claim 6, wherein a flow blocking plate and a flow blocking barrier are arranged in the aggregate discharging box.

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