CN216728093U - Anti-blocking impurity screening device for metallurgical materials - Google Patents

Abstract

The application discloses metallurgical material anti-blocking debris screening plant, which comprises a frame, the box is installed to the frame top, box upper portion is provided with the feed inlet, the bottom of box is provided with the screening material export, the sieve roller subassembly has been arranged to the top of screening material export, the sieve roller subassembly includes a plurality of parallel arrangement's sieve roller, the height of the installation of sieve roller steadilys decrease in proper order, the sieve roller of feed inlet department is the highest, the rotatory material direction of throwing of lower sieve roller is provided with row cinder notch, a plurality of parallel arrangement's sieve roller is provided with its rotatory drive structure of drive, the below of feed inlet is provided with the tee bend push pedal, the below of push pedal is provided with straight row material export, the angle transform of tee bend push pedal is with material direction sieve roller subassembly or straight row material export. The utility model can improve the productivity by arranging the three-way mechanism, and the snowflake sieve tooth structure of the sieve roller accelerates the blanking amount, is not easy to be blocked and avoids material accumulation.

Description

Anti-blocking impurity screening device for metallurgical materials

Technical Field

The application belongs to the technical field of metallurgical material screening, and specifically relates to an iron concentrate powder material anti-blocking debris screening plant.

Background

In the process that the iron concentrate powder is transported to a final use enterprise through repeated port logistics after mining, processing and mineral dressing, more and more impurities such as equipment parts, wear-resistant parts, iron impurities, woven bags, soil blocks, wood materials and the like are attached to the iron concentrate powder. The sundries have extremely high scratch rate on the conveyer belt of the belt conveyor, damage the operation equipment of metallurgical enterprises and obvious influence on the matching and selection of various iron grade components in the metallurgical iron-making and steel-making process.

At present, for metallurgical raw materials such as fine iron powder, mineral powder and lump ore, no matter areas such as mines, port logistics, storage yards and the like, long-distance conveying is carried out by using belt conveyors, in order to maximize production benefits, the conveying capacity of each unit of material is increased, and the conveying flow of a single belt conveyor is averagely less than 1500 tons/hour before 2000 years and is increased to more than 4000 tons/hour after 2015 years. But because the space installation of belt feeder transfer station is limited to and to the difference of material screening demand, lead to metallurgical fine iron powder's edulcoration screening to be limited to within 1500 tons/hour, the leading cause: 1. when the installation space of the roller type impurity sieve is large and the conveying capacity of iron concentrate powder is unstable, the impurity removing and screening device is very easy to discharge the internal blocked materials or the residual impurity removing and screening device is not capable of continuously operating for a long time due to the fact that the impurity removing and screening device exceeds the screening capacity. 2. Generally, the vibration screening mainly for screening granular materials can meet the requirement of about 1000 tons/hour of flow, the requirement on the granularity of the materials is high, for example, fine iron powder with the particle size of less than 1mm or material blockage easily occurs when the humidity is more than 8 percent, the installation requirement on a foundation of the vibration screen is high, the size is large, the vibration screen is not suitable for being installed inside a building, and in addition, the abrasion, the replacement and the maintenance rate of a screen plate are high. 3. A general enterprise utilizes a raw material yard to add a sundry sieve, and is matched with a loader and a truck to carry out feeding, piling and short refuting, and the using flow is about 500 tons/hour.

Above-mentioned material screening plant is to the complicated powdered ore material that contains multiple granule, and inside is sieved and is removed miscellaneous ability and will reduce, because of the roller screen assembly is fixed angle, slow to the speed of flow, thick form material is not suitable for this debris screening plant, or because of the smooth inside putty that easily takes place of gliding, the change of sieve roller needs to hang and remove the upper shield in the sieve roller assembly devices, and the single whole set of change of sieve roller, can prolong to the maintenance time. Therefore, there is a need to develop a more optimal device to solve the above problems in a more optimal way.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the equipment which has high conveying flow, is not easy to be blocked, can bear the impact of large-flow materials, effectively suppresses dust and is automatically operated on line.

The method specifically provides the following scheme: the utility model provides a metallurgical material anti-blocking debris screening plant, which comprises a frame, the box is installed to the frame top, box upper portion is provided with the feed inlet, the bottom of box is provided with the export of screening material, the sieve roller subassembly has been arranged to the top of screening material export, the sieve roller subassembly includes a plurality of parallel arrangement's sieve roller, the height of the installation of sieve roller steadilys decrease in proper order, the sieve roller of feed inlet department is the highest, the rotatory material direction of throwing of lower sieve roller is provided with row cinder notch, the sieve roller includes the roller bearing, the roller bearing rigid coupling has equidistance spaced sieve piece, evenly distributed has the sieve tooth more than 3 around the sieve piece, the sieve piece staggered floor of adjacent sieve roller arranges, the sieve tooth rotation trajectory of adjacent sieve roller covers each other, a plurality of parallel arrangement's sieve roller is provided with its rotatory drive structure of drive, the below of feed inlet is provided with the tee bend push pedal, the below of push pedal is provided with straight row material export, tee bend angle change is with material direction sieve roller subassembly or straight row material export.

The further scheme is as follows: the shape of the sieve teeth is octagonal snowflake, so that materials cannot be blocked by sundries to cause overload and stop.

The further scheme is as follows: a slag discharge belt conveyor is arranged below the slag discharge port and used for conveying sundries with larger volume.

The further scheme is as follows: a belt conveyor is arranged below the direct-discharge material outlet and used for conveying materials.

The further scheme is as follows: the lower part of feed inlet is equipped with the back guard shield, rectangular viewing aperture has been seted up to the middle part of back guard shield, is convenient for observe the inside condition.

The further scheme is as follows: one side of the driving mechanism is provided with an overhauling platform and a crawling ladder, so that the equipment can be conveniently and safely maintained.

Compared with the prior art, the application can obtain the following technical effects:

1. through setting up the tee bend mechanism that has the binary channels, guaranteed the high flow of carrying of material.

2. The screen roller is provided with octagonal snowflake type screen teeth, so that the purpose of difficult clamping stagnation is realized, and the screen roller can bear the impact of large-flow materials.

Description of the drawings:

FIG. 1 is a schematic overall structure diagram of an anti-blocking impurity screening device for metallurgical materials;

FIG. 2 is a right structural schematic diagram of an anti-blocking impurity screening device for metallurgical materials;

FIG. 3 is a schematic diagram of a screening and impurity removing mode of a metallurgical material anti-blocking impurity screening device

FIG. 4 is a schematic view of a straight-through flow pattern of a metallurgical material anti-blocking impurity screening device

FIG. 5 is a cross-sectional view of an octagonal snowflake type sifter tooth

Reference numerals: a feed inlet-1, a three-way push plate-2, a box body-3, a screen roller-4, a slag discharge port-5, an impurity discharge belt conveyor-6, an impurity discharge belt conveyor motor-7, an electric push rod-8, a frame-9, a screening discharge port-10, a body upright post-11, a material guide chute-12, a conveying belt conveyor-13, a driving motor-14, a driving speed reducer-15, a coupling-16, a transmission chain-17, a rear shield-18, an observation port-19, an overhaul platform, a ladder stand-20, an octagonal snowflake type screen tooth-21 and a straight line material outlet-22,

the specific implementation mode is as follows:

the following detailed description of the present invention will be further illustrated with reference to the accompanying drawings and detailed description, it is to be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and that various equivalent modifications thereof can be made by those skilled in the art without inventive faculty after reading the present invention, which fall within the scope of the appended claims of the present application.

In the description of the present embodiments, it is to be understood that the terms "front", "back", "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in the first drawing, the second drawing, the third drawing, the fourth drawing and the fifth drawing, the anti-blocking impurity screening device for the metallurgical materials comprises a rack (9), a body upright post (11) is installed below the rack (9), a box body (3) is installed above the rack (9), a feeding hole (1) is formed in the upper portion of the box body (3), a rear shield (18) is arranged on the lower portion of the feeding hole (1), and a rectangular observation port (19) is formed in the middle of the rear shield (18) so that the internal situation can be observed conveniently. The bottom of the box body (3) is provided with a screening material outlet (10), a screening roller component is arranged above the screening material outlet (10), the screening roller component comprises a plurality of screening rollers (4) which are arranged in parallel, the installation height of the screening rollers (4) is gradually reduced, the screening roller (4) at the feed inlet is highest, the rotary material throwing direction of the lowest screening roller (4) is provided with a slag discharge port (5), the screening rollers (4) comprise rolling shafts, the rolling shafts are fixedly connected with screening sheets which are arranged at equal intervals, more than 3 screening teeth (21) are uniformly distributed around the screening sheets, the screening teeth (21) are in octagonal snowflake shapes, the octagonal snowflake-shaped screening teeth (21) are not easy to be blocked by sundries, the phenomena of overload and stopping are caused, meanwhile, the unique octagonal snowflake-shaped design is compact in structure and can bear the impact of large flow materials, the screening sheets of adjacent screening rollers (4) are arranged in staggered layers, the rotating tracks of the screening teeth (21) of the adjacent screening rollers are mutually covered, a plurality of parallel arrangement's sieve roller is provided with its rotatory driving motor (14) of drive, and one side of driving motor (14) is equipped with overhauls platform, cat ladder (20), can conveniently, safely maintain equipment. The lower part of the feed inlet (1) is provided with a three-way push plate (2), the lower part of the three-way push plate (2) is provided with a direct-discharge material outlet (22), and the angle change of the three-way push plate (2) guides the material to the screen roller assembly or the direct-discharge material outlet (22).

When the metallurgical materials are conveyed to the feed inlet (1) through the belt conveyor process, a screening and impurity removing mode (shown as figure three) or a straight-through flow mode (shown as figure four) can be selected according to the actual production operation requirement

When the screening and impurity removing mode works, the operation of each mechanism is as follows: for some iron fine powder with more impurities, when the iron fine powder is conveyed to the feeding hole (1), the power is switched on at the moment, the three-way mechanism operates, the electric push rod (8) contracts, the three-way push plate (2) operates to the position II, the driving motor (14) operates at the same time, the driving speed reducer (15), the coupler (16) and the transmission chain (17) drive the screen roller mechanism to be powered on to operate, the iron fine powder moves downwards along the space between the three-way push plate (2) and the box body (3) to reach the rotating screen roller (4), the iron fine powder rapidly slides downwards along the screen roller (4) group at an inclined angle and is laid flat by forming a pyramid-shaped small stack, the lower fine powder enters the lower part of the screen roller group along with the rotation of the octagonal snowflake type screen teeth (21) of the screen roller (4), and falls to the next-stage material conveying belt conveyor (13) through the diversion of the screening discharging hole (10) and the guide groove (12), and for the impurities in the iron fine powder along with the rotation of the screen rollers (4) at different stages, The extrusion, gliding to row cinder notch (5), row's cinder notch (5) below is equipped with row miscellaneous belt feeder (6), arranges miscellaneous belt feeder motor (7) and is used for driving the operation of arranging miscellaneous belt feeder (6) for the great debris of transportation volume reaches the debris collecting box.

When the direct flow mode works, the operation of each mechanism is as follows: for some high-purity fine iron powder, when the fine iron powder is conveyed to the feeding hole (1), the power-on three-way mechanism operates, the electric push rod (8) contracts, the three-way push plate (2) operates to the position I, and the fine iron powder falls to the next-stage material conveying belt conveyor (13) through the flow guide of the direct-discharge material outlet (22) and the guide chute (12) along the space between the three-way push plate (2) and the rear shield (18).

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a metallurgical material anti-blocking debris screening plant, its characterized in that, includes the frame, the box is installed to the frame top, box upper portion is provided with the feed inlet, the bottom of box is provided with the screening material export, the top of screening material export has arranged the sieve roller subassembly, the sieve roller subassembly includes a plurality of parallel arrangement's sieve roller, the height of the installation of sieve roller is decrement in proper order, the sieve roller of feed inlet department is the highest, and the rotatory material direction of throwing of lowest sieve roller is provided with arranges the cinder notch, the sieve roller includes the roller bearing, the roller bearing rigid coupling has equidistance spaced sieve piece, evenly distributed has more than 3 sieve teeth around the sieve piece, the sieve piece staggered floor of adjacent sieve roller is arranged, the sieve tooth rotation orbit of adjacent sieve roller covers each other, a plurality of parallel arrangement's sieve roller is provided with the drive structure that drives its rotation, the below of feed inlet is provided with the tee bend push pedal, the below of push pedal is provided with the straight row material export, the angle change of tee bend push pedal is with material direction screen roller subassembly or straight row material export.

2. The anti-blocking impurity screening device for metallurgical materials according to claim 1, wherein the shape of the screen teeth is octagonal snowflake.

3. The anti-blocking impurity screening device for metallurgical materials according to claim 1, wherein an impurity discharge belt conveyor is arranged below the slag discharge port.

4. The metallurgical material anti-blocking impurity screening device according to claim 1, wherein a belt conveyor is arranged below the direct discharge material outlet.

5. The metallurgical material anti-blocking impurity screening device according to claim 1, wherein a rear shield is arranged at the lower part of the feed inlet, and a rectangular observation port is formed in the middle of the rear shield.

6. The metallurgical material anti-blocking impurity screening device according to claim 1, wherein one side of the driving structure is provided with an overhauling platform and a crawling ladder.

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