CN212075748U - Blast furnace ore groove dust collector of unloading - Google Patents

Abstract

The utility model relates to a blast furnace ore groove unloading and dust removing device, which relates to the technical field of blast furnace steelmaking, and is arranged above an ore groove bin, and comprises a dust hood arranged above an unloading trolley, an air pipeline connected to the dust hood and a sealed ventilation pipe connected to the end part of the air pipeline; the opening of the dust hood is downward, and the discharge trolley moves below the dust hood; the sealed ventilation pipe is connected with a dust remover; a baffle plate capable of rotating up and down is arranged outside the lower opening of the dust hood; the discharging trolley is in a herringbone shape and is provided with two discharging pipes, and the outer side of each discharging pipe is sleeved with a ventilation hood with openings at the upper side and the lower side. The utility model discloses the device can be handled the smoke and dust that the in-process produced of unloading by the efficient, realizes the clean production in the production process on the blast furnace pit storehouse.

Description

Blast furnace ore groove dust collector of unloading

Technical Field

The utility model relates to the technical field of blast furnace steelmaking, in particular to a blast furnace ore groove dust collector of unloading.

Background

Blast furnace ore tanks are important production facilities responsible for supplying blast furnace raw materials and generally consist of 4 to 6 coke bins, 5 to 8 ore bins, and 2 to 4 miscellaneous bins. The ore tank main body comprises a feeding device, a discharging device, an ore tank bin, a weighing device, a discharging device, a corresponding control and automatic system and the like. The dust generated by the discharging device of the ore tank in the discharging process to the discharging opening is one of main dust discharging points of the ore tank, and the discharging device has the characteristics of high discharging position, high smoke concentration, long discharging time and the like, so that the top of the ore tank has severe working conditions, and the dust overflows to seriously pollute the production area of the blast furnace. For a long time, the ore tank discharging device and the dust removal in the discharging process are one of the difficulties in controlling the environment of the blast furnace area.

The blast furnace generally lacks effectual dust removal facility, under the circumstances that current environmental protection requires and the index is increasing more, some enterprises have adopted the fixed dust removal pipeline of ore deposit groove discharge platform-dust removal pipeline to set up fixed dust absorption mouth according to the discharge position-the tripper is equipped with the mode of dust removal pipeline to the mouth and carries out the environmental control, the operational environment of ore deposit groove discharge platform has been improved to a certain extent, the total emission data has been reduced, but this kind of mode also has fixed position sealing efficiency not high, the discharge position precision is not high, the tripper removes in-process ease dirt scheduling problem, blast furnace ore deposit groove dust collector of unloading need improve and innovation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blast furnace ore groove dust collector of unloading exists to prior art, can handle the smoke and dust that the in-process produced of unloading by the efficient, realizes the clean production in the production process on the blast furnace ore groove storehouse.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a blast furnace ore groove unloading dust removal device is arranged above an ore groove bin and comprises a dust hood arranged above an unloading trolley, a ventilating duct connected to the dust hood and a sealed ventilating duct connected to the end part of the ventilating duct;

the opening of the dust hood is downward, and the discharge trolley moves below the dust hood;

and the sealed ventilation pipe is connected with a dust remover.

By adopting the technical scheme, the discharge trolley is used for discharging materials, upward raised dust can be generated in the ore tank bin, the raised dust flies and is gathered in the dust hood under the driving of the wind power of the fan of the dust remover, enters the ventilating duct, enters the sealed ventilating duct through the ventilating duct, is conveyed to the dust remover through the sealed ventilating duct, and is subjected to dust fall treatment; because the dump car moves below the dust hood, raised dust generated by the dump car in the moving process can be gathered in the dust hood, so that the efficient dust collection effect is realized, and the leakage of the raised dust is reduced.

The present invention may be further configured in a preferred embodiment as: the discharge openings of the ore tank bin are symmetrically arranged on two sides of the discharge trolley, the length of the dust hood is matched with that of the discharge openings, and the width of the dust hood is matched with the distance between two side faces with the largest distance between the two discharge openings.

Through adopting above-mentioned technical scheme, the suction hood can cover the discharge opening completely, and the raise dust that produces from the discharge opening all can fly away to the suction hood to reduce the loss of raise dust to the outside, guarantee better dust removal effect.

The present invention may be further configured in a preferred embodiment as: and a baffle plate capable of rotating up and down is arranged on the outer side of the lower opening of the dust hood.

Through adopting above-mentioned technical scheme, the baffle can rotate downwards to reduce the height of gathering dust of suction hood, collect the suction hood with more raise dusts, further improve the effect of gathering dust.

The present invention may be further configured in a preferred embodiment as: the discharging trolley is in a herringbone shape and is provided with two discharging pipes, and the outer side of each discharging pipe is sleeved with a ventilation hood with openings at the upper side and the lower side.

Through adopting above-mentioned technical scheme, the air that sets up the pipe orifice department that can guide the dump truck unloading pipe of ventilation hood flows through the ventilation hood upwards to direct the raise dust of unloading pipe orifice department upwards, flow to the suction hood along with the air current, thereby take away the raise dust, further with having high the collection efficiency to the raise dust, reduce to external emission.

The present invention may be further configured in a preferred embodiment as: the upper opening of the ventilation hood is provided with a cover plate which is opened by rotating towards the outside, and a rubber pad is arranged at the joint of the cover plate and the ventilation hood for sealing.

Through adopting above-mentioned technical scheme, the ventilation passageway of ventilation hood can be opened or closed to the apron, and when the raise dust produced less, can close the upper shed of ventilation hood, only utilize the ventilation hood to gather dust the dust fall, need not open the dust remover, reduce the waste of the energy.

The present invention may be further configured in a preferred embodiment as: the width of the lower opening of the ventilation hood is larger than that of the discharge opening, and two side walls of the ventilation hood are located on two sides of the discharge opening.

Through adopting above-mentioned technical scheme, the draft hood also can be collected the raise dust that the discharge opening produced, has improved the collection efficiency to the raise dust.

The present invention may be further configured in a preferred embodiment as: and a blocking curtain which is enclosed into a rectangle is arranged at the opening of the blanking pipe, and the blocking curtain extends into the discharge opening.

Through adopting above-mentioned technical scheme, the material that the check apron will be down guides the ore deposit groove feed bin in, can reduce the raise dust and at the horizontal excessive of discharge opening firstly, can reduce the production of discharge opening raise dust secondly.

The present invention may be further configured in a preferred embodiment as: the discharging platform above the ore tank bin is provided with a support frame, and the sealing ventilation pipe is connected to the support frame.

Through adopting above-mentioned technical scheme, the support frame will seal the high of ventilation pipe and raise, has reduced air pipe's stroke, has reduced the loss of the amount of wind, has improved the dust absorption effect of dust remover, has reduced the drop of dust simultaneously, avoids producing to subside and piles up and block up the dust removal pipeline.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model discloses increase the suction hood in discharge carriage's whole stroke, can both collect the raise dust that the discharge carriage in-process of unloading produced, improve the space of gathering dust widely, improved the effect of gathering dust, satisfy the requirement that the discharge carriage was unloaded and is imitated dust removal efficiently, realize the clean production in the production process on the blast furnace ore deposit groove feed bin, improve work operation environment, reduced the influence to the regional environmental pollution of ironmaking by a wide margin.

2. The utility model discloses a keep off the production that the curtain reduces the raise dust, through the draft hood guide raise dust to the suction hood flow, both reduced the production of raise dust from the source, reduced the excessive of raise dust from the in-process again to the clean requirement of ore deposit groove unloading has been realized.

3. The ventilation hood can move along with the discharging trolley in all discharging strokes, and efficient dust removal in the whole process is achieved.

Drawings

Fig. 1 is a schematic structural diagram of the device of the present invention.

In the figure, 100 parts of a discharge trolley, 101 parts of a dust hood, 102 parts of a ventilating duct, 103 parts of a sealing ventilating duct, 104 parts of a baffle plate, 105 parts of a discharge pipe, 106 parts of a ventilating hood, 107 parts of a cover plate, 108 parts of a baffle curtain, 109 parts of a support frame, 110 parts of a discharge opening.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a blast furnace ore groove dust collector of unloading, the device set up on the ore groove platform of unloading of ore groove feed bin top, and ore groove feed bin top is provided with discharge opening 110, and the translation of tripper 100 is slided on the slide rail on the ore groove platform of unloading. The discharge trolley 100 is in a herringbone shape, two discharge pipes 105 are arranged at the lower part of the discharge trolley 100, the discharge openings 110 are symmetrically arranged at two sides of the discharge trolley 100, the two discharge openings 110 are arranged in parallel, the two discharge pipes 105 are respectively and correspondingly arranged at the two discharge openings 110, the discharge trolley 100 moves above the discharge openings 110, and the discharge trolley discharges materials into the ore tank bin through the discharge openings 110.

The dust removing device in this embodiment includes a dust hood 101, a ventilation duct 102, and a sealing ventilation duct 103. Dust hood 101 sets up in the dolly 100 top of unloading, the opening is down, specifically be setting up the activity interval top at dump car 100, the length of dust hood 101 and the length looks adaptation of discharge opening 110, the width of dust hood 101 and the interval looks adaptation of two sides of interval maximum on two discharge openings 110, the projection of dust hood 101 to ore deposit groove discharge platform completely covers discharge opening 110 in inside promptly, the raise dust that makes discharge opening 110 produce can both be covered by dust hood 101, the raise dust that produces from discharge opening 110 can all waft in dust hood 101, thereby reduce the outside loss of raise dust, guarantee better dust removal effect. In order to improve the dust collecting effect of the dust hood 101, baffle plates 104 capable of rotating up and down are arranged on the outer sides of four side walls at the lower opening of the dust hood 101, and when the baffle plates 104 rotate to the lowest position, the dust collecting height is lower, and the dust collecting effect is better.

The ventilation duct 102 is connected to the middle position above the dust hood 101, the ventilation duct 102 is a U-shaped pipe, and both ends of the ventilation duct are bent downward. The sealed ventilation pipe 103 is connected with the end part of the ventilation pipe 102, the connection part is sealed by a rubber sealing gasket, and the tail end of the pipeline of the sealed ventilation pipe 103 is connected with a dust remover for dust collection and dust fall; be provided with support frame 109 on the platform of unloading of ore groove feed bin top, sealed ventilation pipe 103 connects on support frame 109, makes whole ventilation passageway highly raised, has reduced ventilation pipe 102's stroke, has reduced the loss of amount of wind, has improved the dust absorption effect of dust remover, has reduced the drop of dust simultaneously, avoids producing to subside and piles up and block up dust removal pipe-line system.

Referring to fig. 1, the lower extreme of unloading pipe 105 sets up to one section standpipe, and the outside cover of standpipe part is equipped with upper and lower both sides open-ended cowl 106, and cowl 106 sets up to rectangular cylinder structure, through connecting plate and the welding of unloading pipe 105 outer wall on the inner wall, forms the ventilation groove that link up both ends from top to bottom between cowl 106 and the unloading pipe 105 for the air flows. The setting of draft hood 106 can guide the air of unloading pipe 105 mouth of pipe department of unloading dolly 100 to upwards guide the raise dust of unloading pipe 105 mouth of pipe department directly through draft hood 106 to flow to dust hood 101 along with the air current in, take out the raise dust by the dust remover. The upper opening of the ventilation hood 106 is provided with a cover plate 107 which is opened by rotating towards the outside, the joint of the cover plate 107 and the ventilation hood 106 is sealed by a rubber pad, the cover plate 107 can open or close the ventilation channel of the ventilation hood 106, when less dust is generated, the upper opening of the ventilation hood 106 can be closed, only the ventilation hood 106 is utilized for dust collection and dust reduction, and a dust remover does not need to be opened. During specific implementation, the width of the lower opening of the ventilation hood 106 is greater than the width of the discharge opening 110, that is, the two side walls of the ventilation hood 106 are located at the two sides of the discharge opening 110, so that the collection efficiency of the raised dust is improved.

Still be provided with the check curtain 108 that encloses into the rectangle at the opening part of unloading pipe 105 in this embodiment, check curtain 108 adopts the rubber thin slice, and the lower extreme stretches into discharge opening 110, can reduce the raise dust and spill at the horizontal excessive of discharge opening 110 on the one hand, can reduce the production of discharge opening 110 department raise dust on the other hand.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (5)

1. The utility model provides a blast furnace ore deposit groove dust collector of unloading which characterized in that: the device is arranged above a bin of a ore tank and comprises a dust hood (101) arranged above a discharge trolley (100), a ventilation pipeline (102) connected to the dust hood (101) and a sealing ventilation pipe (103) connected to the end part of the ventilation pipeline (102);

the opening of the dust hood (101) is downward, and the discharge trolley (100) moves below the dust hood (101);

the sealed ventilation pipe (103) is connected with a dust remover;

two discharge openings (110) of the ore tank bin are symmetrically arranged on two sides of the discharge trolley (100), the length of the dust hood (101) is matched with that of the discharge openings (110), and the width of the dust hood (101) is matched with the distance between two side surfaces with the largest distance between the two discharge openings (110);

the discharging trolley (100) is in a herringbone shape and is provided with two discharging pipes (105), a ventilating hood (106) with openings at the upper side and the lower side is sleeved on the outer side of each discharging pipe (105), the width of the lower opening of each ventilating hood (106) is larger than that of each discharging opening (110), and the two side walls of each ventilating hood (106) are located on the two sides of each discharging opening (110).

2. The blast furnace ore tank discharging and dedusting device according to claim 1, characterized in that: and a baffle (104) capable of rotating up and down is arranged on the outer side of the lower opening of the dust hood (101).

3. The blast furnace ore tank discharging and dedusting device according to claim 1, characterized in that: the upper opening of the ventilation hood (106) is provided with a cover plate (107) which is opened by rotating towards the outside, and a rubber pad seal is arranged at the joint of the cover plate (107) and the ventilation hood (106).

4. The blast furnace ore tank discharging and dedusting device according to claim 1, characterized in that: an opening of the blanking pipe (105) is provided with a blocking curtain (108) which is enclosed into a rectangle, and the blocking curtain (108) extends into the discharge opening (110).

5. The blast furnace ore tank discharging and dedusting device according to claim 1, characterized in that: and a support frame (109) is arranged on the discharging platform above the ore tank bin, and the sealing ventilation pipe (103) is connected to the support frame (109).

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