CN113865353A - Hearth structure of metal smelting furnace - Google Patents
Hearth structure of metal smelting furnace Download PDFInfo
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- CN113865353A CN113865353A CN202111128401.1A CN202111128401A CN113865353A CN 113865353 A CN113865353 A CN 113865353A CN 202111128401 A CN202111128401 A CN 202111128401A CN 113865353 A CN113865353 A CN 113865353A
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- slag
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- scraper
- shaft
- slag crushing
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- 238000003723 Smelting Methods 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 26
- 239000002893 slag Substances 0.000 claims abstract description 279
- 238000007599 discharging Methods 0.000 claims description 27
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- 230000009471 action Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000000926 separation method Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000003818 cinder Substances 0.000 description 4
- 241001417490 Sillaginidae Species 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
- F27D3/1554—Equipment for removing or retaining slag for removing the slag from the surface of the melt
- F27D3/1563—Equipment for removing or retaining slag for removing the slag from the surface of the melt by the use of scrapers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention belongs to the technical field of industrial metal smelting, and particularly relates to a hearth structure of a metal smelting furnace, wherein a third inclined hopper, a second shaft, a scraper and a slag discharge port are arranged at the bottom of the furnace, the scraper rotates around the second shaft and scrapes slag falling on the bottom of the furnace, the slag is pushed to slide out of the slag discharge port along the slant direction of the third inclined hopper, meanwhile, a scraper groove is designed on the scraper, a rotary knife wheel and a rotary block are installed, so that the slag adhered to the surface of the third inclined hopper and dead corners of the bottom of the furnace is shoveled and cleaned, a hook-shaped knife head on the rotary knife wheel can more effectively clear stubborn slag, and the slag removal efficiency and quality are improved; the salient angle and the convex block designed on the furnace wall ensure that the rotating block and the rotating cutter wheel rotate, so that the slipping condition is prevented, and the automatic slag removal is realized; meanwhile, the slag crushing mechanism is arranged, so that the volume of the discharged slag is small, the slag is convenient to clean, the labor is saved, and the safety is improved.
Description
Technical Field
The invention belongs to the technical field of industrial metal smelting, and particularly relates to a hearth structure of a metal smelting furnace.
Background
Smelting is a refining technology, which refers to extracting metals in ores by roasting, smelting, electrolysis, using chemical agents and other methods; reducing impurities contained in the metal or increasing certain components in the metal to smelt the metal into the required metal. And the used fuel of burning can generate the bottom of the furnace sediment bottom the smelting furnace, and the bottom of the furnace sediment is mostly large-scale cubic, is shoveled out from the slag notch by the workman usually, can increase intensity of labour like this, simultaneously because the temperature is higher, burns very easily, urgently needs the slag cleaning device that a manual work was used manpower sparingly.
A patent appears in the prior art relating to a slag cleaning device for a metallurgical furnace, such as a slag cleaning device for a metallurgical furnace with application number 201721881743.X, which comprises a housing, wherein one side of the upper end of the housing is hinged with a supporting plate through a pin shaft, the lower end of the supporting plate is provided with a supporting mechanism, the supporting mechanism comprises a first slide way arranged at the lower end of the supporting plate, the inner wall of one side of the housing is obliquely provided with a sleeve pipe, a supporting rod is arranged in the sleeve pipe in an inserting manner, a first sliding block is arranged at the upper end of the supporting rod and is arranged in the first slide way in a sliding manner, the lower end of the supporting rod is provided with a second magnet, the bottom position in the sleeve pipe is provided with a first magnet, the first magnet and the second magnet have the same magnetism, one end of the housing, which is far away from the hinge, is provided with a limiting block, one side inner wall of the housing, which is far away from the hinge, is provided with a slag guide plate, the lower end of the slag guide plate is provided with a collecting drawer, the supporting plate is provided with a clearing mechanism.
However, the above device has the following disadvantages: because the supporting plate is in a straight state, when ash is discharged and a plurality of gravities just meet the requirement of discharging, the inclination angle of the supporting plate is very small, so that the discharging amount is very small, the scraper cannot finish the cleaning work by utilizing the weight of the balancing weight, and the cleaning effect is poor; the device can generate large slag at the bottom of the furnace, and the slag is difficult to remove.
In view of the above, the present invention provides a hearth structure of a metal smelting furnace to solve the above technical problems.
Disclosure of Invention
In order to make up the defects of the prior art, the problems that the existing metal smelting furnace is difficult to automatically clear slag when in work, and in the clearing process, large blocks of slag are difficult to eradicate, workers are easily burnt due to overhigh temperature and the like are solved.
The invention solves the technical problem by adopting the technical scheme that the hearth structure of the metal smelting furnace comprises a hearth and an observation frame, wherein the hearth is arranged in the center of the observation frame and comprises a smelting chamber, a slag crushing cavity, a slag discharging cavity and a furnace wall, the smelting chamber is positioned above the hearth, the slag discharging cavity is positioned below the hearth, the area between the smelting chamber and the slag discharging cavity in the hearth is the slag crushing cavity, and the side wall surface of the slag crushing cavity is uniformly and fixedly connected with a blocking block; a slag crushing roller is arranged in the slag crushing cavity, the slag crushing roller is conical, and the small end of the slag crushing roller is positioned at the top; the bottom end of the slag crushing roller is provided with an eccentric shaft, the eccentric shaft comprises a connecting block, a first shaft and a second shaft, and the first shaft is rotatably connected with the center of the bottom of the slag crushing roller; the bottom of the first shaft and the top of the second shaft are eccentrically and fixedly connected through a connecting block, and the second shaft penetrates through the central part of an inclined hopper arranged at the bottom of the hearth and is connected with a motor arranged at the bottom of the hearth; a dustproof bushing is arranged between the second shaft and the inclined hopper; the side surface of the second shaft is uniformly and fixedly connected with a scraper with the same slope as that of the inclined bucket, the blade part of the scraper is tightly contacted with the upper surface of the inclined bucket, and a slag discharge port is arranged at the part, close to the bottom surface, on the side wall of the furnace wall; the lower part of the slag crushing roller is provided with a grid, the inner surface of the furnace wall is uniformly provided with a plurality of supporting tables, and one end of the grid, which is close to the furnace wall, is fixedly connected with the upper surfaces of the supporting tables.
When the device works, when a factory smelts metal, slag generated by a combustion chamber of a metal smelting furnace enters a slag crushing cavity, wherein the slag with smaller volume smoothly enters a slag discharging cavity through a gap between the side wall of the slag crushing cavity and a slag crushing roller, the slag with larger volume is clamped in the gap between the side wall of the slag crushing cavity and the slag crushing roller, then a motor is started, the slag crushing roller in the slag crushing cavity is driven by an eccentric shaft to eccentrically rotate, the distance between the eccentrically-moving slag crushing roller and a furnace wall is continuously changed, the slag in the gap between the side wall of the slag crushing cavity and the slag crushing roller is extruded and crushed, and the crushed slag can smoothly fall into the slag discharging cavity through the gap between the side wall of the slag crushing cavity and the slag crushing roller, so that the effect of extruding and crushing the slag is realized, and the phenomenon that the normal work of the metal smelting furnace is influenced by the difficulty of discharging of massive slag is avoided; due to the action of the grating, when the slag under the action of the slag crushing roller falls on the grating, small blocks of slag can directly pass through the grating, large blocks of slag can be blocked by the grating and cannot pass through the grating, and the slag is continuously subjected to extrusion crushing action under the action of the slag crushing roller above the grating until the volume of the slag is enough to pass through gaps of the grating, so that the slag entering the slag discharging cavity is fully crushed; when the slag is clamped at the gap part between the slag crushing roller and the side wall of the slag crushing cavity, the slag with the shape close to a sphere can rotate along with the slag crushing roller in the gap part, so that the blocking blocks are uniformly arranged on the inner surface of the furnace wall, the situation that large slag is difficult to be fully crushed because the large slag rotates along with the slag crushing roller can be effectively avoided, the minimum distance between the slag crushing roller and the furnace wall in the motion process is larger than the width of the blocking blocks, the large slag is crushed into small blocks by the slag crushing roller and the inner wall of the slag crushing cavity together and then falls into an inclined hopper below, the primary slag crushing in the furnace can reduce the later-stage slag crushing workload, and the slag discharging efficiency and the slag crushing degree are improved; a dustproof bushing is arranged in a gap between the inclined hopper and the second shaft, so that an external motor is protected from being influenced by dust, and the service life of the motor is prolonged; and the scraper connected with the second shaft scrapes and pushes crushed slag on the inclined hopper, and when the scraper rotates to the position of the slag discharge port around the second shaft, the slag slides out of the slag discharge cavity along the inclined surface of the inclined hopper, so that the automatic discharge of the slag is realized, the purpose of saving manpower is realized, and the safety is improved.
Preferably, the blade edge part of the scraper is uniformly provided with scraper grooves, a rotary cutter wheel is arranged in the scraper grooves, and the outer surface of the rotary cutter wheel is uniformly provided with cutter heads which are distributed annularly; the rotary knife flywheel is rotationally connected with the inner surface of the scraper groove through a rotating shaft, and the rotary knife flywheel is fixedly connected with the rotating shaft.
When the slag crusher works, when part of slag with higher temperature falls into the slag crushing cavity and is positioned on the upper surface of the inclined hopper, the molten part on the slag is solidified and is tightly bonded with the upper surface of the inclined hopper in the cooling process, so that the difficulty of manual slag removal is increased; consequently set up rotatory break bar on the scraper, when the scraper rotated around No. two axles, because rotatory break bar and tipping bucket surface contact and rotate under the frictional action between the slag with inseparable adnexed, the tool bit on the pivoted rotatory break bar strikes the slag that condenses the adhesion on the shovel moves the tipping bucket repeatedly, slag and the tipping bucket separation of inseparable bonding accelerate, and the slag of shovel is smoothly by propelling movement to the row's cinder notch and discharges, the condition of the slag adhesion at the stove bottom not good clearance has been solved, the discharge of slag has further been accelerated, thereby the working strength of manual slag removal has been reduced, slagging-off personnel's safety has been guaranteed.
Preferably, the end part of the cutter head is sharp and is bent along the rotating direction to form a hook shape, and the part of the end part of the cutter head, which is opposite to the upper surface of the inclined bucket, is a rounded cambered surface.
When the scraper conveyor works, the rotary cutter wheel is driven by the connected rotating shaft to rotate and shovel the slag attached to the surface of the inclined bucket, when the slag is attached to the part acted by the cutter head, the end part of the cutter head is inserted into a slag gap attached to the surface of the inclined bucket, and the slag is scraped away from the surface of the inclined bucket by virtue of the hook-shaped structure in the rotating process, so that the separation of the slag is accelerated; after the slag attached to the part acted on by the tool bit is effectively removed, the upper arc surface of the tool bit is in contact with the surface of the inclined bucket, so that the impact on the surface of the inclined bucket is reduced, the surface of the inclined bucket and the end part of the tool bit are prevented from being damaged in the impact action, the slag removed is pushed out of the slag discharge port along with the rotation of the scraper, and the slag removal efficiency is further improved.
Preferably, the end part of the rotating shaft extends out of the scraper and is close to the joint of the side wall of the furnace wall and the bottom, the end part of the rotating shaft is fixedly connected with a rotating block, the outer surface of the rotating block is conical, and the outer surface of the rotating block is close to the surface of the joint of the side wall of the furnace wall and the bottom; the outer surface of the rotating block close to the scraper is uniformly provided with grooves around the rotating shaft, and the cross sections of the grooves are in a right trapezoid shape.
During operation, because of the inclined surface of the inclined hopper, slag is mainly accumulated at the bottom of the inclined hopper in a centralized manner, the scraper moves to drive the rotating block at the end part to rotate together, and the rotating block shovels off the slag accumulated and adhered at dead corners of the bottom, so that the problem that the slag accumulation occurs at the dead corners between the upper surface of the inclined hopper and the side wall of the furnace wall to influence the efficiency of slag treatment when the furnace works for a long time can be avoided; and the slag is discharged at the loose dead angle of shovel, and is discharged along with the scraper blade rotates row cinder notch, has effectively avoided the easy problem of collecting and collecting the difficult clearance of slag in stove bottom dead angle, and the recess cross section that sets up on the rotatory piece is right trapezoid, when lieing in the lug cooperation, can extrude the slag of embedding in the recess, guarantees the device normal operating.
Preferably, the furnace wall is provided with a convex angle close to the furnace bottom, and the lower side surface of the convex angle is uniformly provided with a convex block which is matched with the groove.
The during operation, the scraper blade begins to move, and the lug that sets up on the salient angle cooperatees with the recess on the turning block, guarantees that rotatory piece revolutes the rotation of axes, and the pivot links firmly with rotatory piece, makes the pivot follow rotatory piece rotatory, and the pivot links firmly with rotatory break bar, guarantees that rotatory break bar accomplishes rotary motion, realizes the power take off of pairing rotation break bar, avoids rotatory break bar to appear skidding the phenomenon at the clearance in-process, has influenced the normal work of rotatory break bar.
Preferably, the scraper is close to the one end of oven and upwards extends along the inner wall, and the scraper is close to one side of oblique fill and oven and is wider than the one side of keeping away from oblique fill and oven to set up sharp-pointed cutting edge to direction of rotation, the one side that the scraper was equipped with sharp-pointed cutting edge is the curved surface, the vertical plane of opposite side.
When the furnace wall slag removing device works, the scrapers with the end parts extending upwards can scrape off slag adhered to the furnace wall, so that the slag removing efficiency is further improved; because the one side that is close to the direction of rotation on the scraper is the curved surface, and the curved surface is located sharp-pointed blade portion top, rotate the in-process at the scraper, sharp-pointed tip on the scraper acts on the slag, the separation on slag and oblique bucket surface has been accelerated, and the slag upwards slides along the curved surface of sharp-pointed blade portion top after being shoveled out, the slag of scraping is pushed away by the curved surface, and move row's cinder notch discharge under pivoted centrifugal action, avoid the slag to be equipped with sharp-pointed blade portion's surface on the scraper and pile up in a large number, the resistance of scraper has been increased.
The invention has the following beneficial effects:
1. according to the hearth structure of the metal smelting furnace, the slag crushing cavity is arranged at the upper part of the slag discharging cavity, the slag crushing cavity is provided with the slag crushing roller, the blocking block, the filter screen, the supporting block and the eccentric shaft, and the distance between the slag crushing roller and the furnace wall is continuously changed through the eccentric shaft under the driving of the external motor, so that large slag falling on the filter screen is extruded and crushed, and small slag is more easily pushed and discharged by the scraper; the slag crushing in the furnace for the first time can also reduce the later slag crushing workload, and improve the slag discharging efficiency and the slag crushing degree.
2. According to the hearth structure of the metal smelting furnace, the inclined bucket, the second shaft, the scraper and the slag discharge port are arranged at the furnace bottom, the scraper rotates around the second shaft and scrapes slag falling on the furnace bottom, the slag is pushed to slide out of the slag discharge port along the inclined direction of the inclined bucket, meanwhile, the scraper groove is designed on the scraper, the rotary knife wheel and the rotary block are installed, so that the slag adhered to the surface of the inclined bucket and the dead angle position of the furnace bottom is shoveled and cleaned, the hook-shaped knife head on the rotary knife wheel can more effectively clear stubborn slag, and the slag removal efficiency and quality are improved; the salient angle and the convex block designed on the furnace wall ensure that the rotating block and the rotating cutter wheel perform rotating motion, prevent the slipping condition, realize automatic slag removal, save manpower and improve safety.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of the cylinder block;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is a perspective view of the rotary cutter wheel;
FIG. 6 is a cross-sectional view of the doctor blade;
in the figure: the furnace hearth 1, the smelting chamber 11, the slag crushing cavity 12, the blocking block 121, the slag crushing roller 122, the grating 123, the supporting platform 124, the slag discharging cavity 13, the furnace wall 14, the slag discharging port 141, the convex angle 142, the convex block 143, the observation frame 2, the eccentric shaft 3, the connecting block 31, the first shaft 32, the second shaft 33, the inclined hopper 4, the motor 5, the dustproof lining 51, the scraper 6, the scraper groove 61, the rotary cutter wheel 62, the cutter head 621, the cambered surface 622, the rotating shaft 63, the rotating block 64 and the groove 65.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the hearth structure of the metal smelting furnace of the present invention includes a hearth 1 and an observation frame 2, the hearth 1 is installed in the center of the observation frame 2, the hearth 1 includes a smelting chamber 11, a slag crushing chamber 12, a slag discharging chamber 13 and a furnace wall 14, the smelting chamber 11 is located at the upper part of the hearth 1, the slag discharging chamber 13 is located at the lower part of the hearth 1, the area inside the hearth 1 between the smelting chamber 11 and the slag discharging chamber 13 is the slag crushing chamber 12, and the side wall surface of the slag crushing chamber 12 is uniformly and fixedly connected with a blocking block 121; a slag crushing roller 122 is arranged in the slag crushing cavity 12, the slag crushing roller 122 is conical, and the small end of the slag crushing roller 122 is positioned at the top; the bottom end of the slag crushing roller 122 is provided with an eccentric shaft 3, the eccentric shaft 3 comprises a connecting block 31, a first shaft 32 and a second shaft 33, and the first shaft 32 is rotatably connected with the center of the bottom of the slag crushing roller 122; the bottom of the first shaft 32 is eccentrically and fixedly connected with the top of the second shaft 33 through a connecting block 31, and the second shaft 33 penetrates through the central part of an inclined hopper 4 arranged at the bottom of the hearth 1 and is connected with a motor 5 arranged at the bottom of the hearth 1; a dustproof bushing 51 is arranged between the second shaft 33 and the inclined hopper 4; the side surface of the second shaft 33 is uniformly and fixedly connected with scrapers 6 with the same slope as the inclined buckets 4, the blade parts of the scrapers 6 are tightly contacted with the upper surfaces of the inclined buckets 4, and slag discharge ports 141 are arranged at the parts, close to the bottom surfaces, on the side walls of the furnace walls 14; a grating 123 is arranged below the slag crushing roller 122, a plurality of supporting tables 124 are uniformly arranged on the inner surface of the furnace wall 14, and one end of the grating 123 close to the furnace wall 14 is fixedly connected with the upper surfaces of the supporting tables 124.
When in work, when a factory smelts metal, the slag generated by the combustion chamber of the metal smelting furnace enters the slag crushing cavity 12, wherein the slag with smaller volume smoothly enters the slag discharging cavity 13 through the gap between the side wall of the slag crushing cavity 12 and the slag crushing roller 122, and the slag with a large volume is caught in the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122, and then the motor is started, so that the slag crushing roller 122 in the slag crushing cavity 12 is driven by the eccentric shaft 3 to eccentrically rotate, the distance between the eccentrically-moving slag crushing roller 122 and the furnace wall 14 is constantly changed, so that the slag located in the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122 is crushed, the crushed slag can smoothly fall into the slag discharging cavity 12 through the gap between the side wall of the slag crushing cavity 12 and the slag crushing roller 122, thereby realizing the function of extruding and crushing the slag and avoiding the influence on the normal work of the metal smelting furnace caused by the difficult discharge of the large slag; and because of the function of the grid 123, when the slag after the function of the slag crushing roller 122 falls on the grid 123, the small blocks of slag can directly pass through the grid 123, and the large blocks of slag can be blocked by the grid 123 and can not pass through, and are continuously subjected to the extrusion crushing function under the function of the slag crushing roller 122 above the grid 123 until the volume of the slag is enough to pass through the gap of the grid 123, so that the slag entering the slag discharging cavity 13 is ensured to be fully subjected to the crushing function; when the slag is clamped at the gap part between the slag crushing roller 122 and the side wall of the slag crushing cavity 12, the slag with the shape close to a sphere can rotate along with the slag crushing roller 122 in the gap part, so that the blocking blocks 121 are uniformly arranged on the inner surface of the furnace wall 14, the arrangement can effectively prevent large slag from being difficult to be fully crushed along with the rotation of the slag crushing roller 122, the minimum distance between the slag crushing roller 122 and the furnace wall 14 in the motion process is larger than the width of the blocking blocks 121, the large slag is crushed into small blocks by the slag crushing roller 122 and the inner wall of the slag crushing cavity 12 and then falls into the lower inclined hopper 4, the primary slag crushing in the furnace can reduce the later-stage slag crushing workload, and the slag discharging efficiency and the slag crushing degree are improved; a dustproof bushing 51 is arranged in a gap between the inclined hopper 4 and the second shaft 33, so that the external motor 5 is protected from dust, and the service life of the motor 5 is prolonged; and the scraper 6 connected with the second shaft 33 scrapes and pushes crushed slag on the inclined hopper 4, and when the scraper 6 rotates to the position of the slag discharge port 141 around the second shaft 33, the slag slides out of the slag discharge cavity 13 along the inclined surface of the inclined hopper 4, so that the slag is automatically discharged, the purpose of saving manpower is achieved, and the safety is improved.
In a specific embodiment of the present invention, the blade edge portion of the scraper 6 is uniformly provided with scraper grooves 61, the scraper grooves 61 are internally provided with rotating cutter wheels 62, and the outer surfaces of the rotating cutter wheels 62 are uniformly provided with cutter heads 621 distributed in an annular shape; the rotary knife flywheel 62 is rotatably connected with the inner surface of the scraper groove 61 through a rotating shaft, and the rotary knife flywheel 62 is fixedly connected with the rotating shaft.
When the slag crusher works, when part of slag with higher temperature falls into the slag crushing cavity 12 and is positioned on the upper surface of the inclined hopper 4, the molten part on the slag is solidified and is tightly bonded with the upper surface of the inclined hopper 4 in the cooling process, so that the difficulty of manual slag removal is increased; consequently set up rotatory break bar 62 on scraper 6, when scraper 6 rotated around No. two axles 33, because rotatory break bar 62 and tipping bucket 4 surface contact and rotate under the friction action between the slag that closely adheres to, the slag that condenses the adhesion on the tipping bucket 4 is shoveled in the repeated striking of tool bit 621 on the rotatory break bar 62, the slag that closely bonds with the tipping bucket 4 separation with higher speed, and the slag of shovel is smoothly pushed to slag discharging port 141 and is discharged, the condition of the slag adhesion at the bottom of a furnace not good clearance has been solved, the discharge of slag has further been accelerated, thereby the working strength of artifical slagging-off has been reduced, slagging-off personnel's safety has been guaranteed.
In a specific embodiment of the present invention, the end of the cutting head 621 is sharp and is bent along the rotation direction to form a hook shape, and the portion of the end of the cutting head 621 facing the upper surface of the inclined bucket 4 is a rounded curved surface 622.
When the scraper wheel 62 works, the rotary scraper wheel is driven by the connected rotating shaft to rotate and shovel the slag attached to the surface of the inclined bucket 4, when the slag is attached to the part acted by the cutter head 621, the end part of the cutter head 621 is inserted into the slag gap attached to the surface of the inclined bucket 4, and the slag is scraped away from the surface of the inclined bucket 4 by virtue of a hook-shaped structure in the rotating process, so that the separation of the slag is accelerated; after the slag attached to the part acted on by the cutter head 621 is effectively removed, the upper arc surface 622 of the cutter head 621 contacts with the surface of the inclined bucket 4, so that the impact on the surface of the inclined bucket 4 is reduced, the surface of the inclined bucket 4 and the end part of the cutter head 621 are prevented from being damaged in the impact action, the slag which is raked out is pushed out of the slag discharge port 141 along with the rotation of the scraper 6, and the slag removing efficiency is further improved.
In a specific embodiment of the invention, the end part of the rotating shaft extends out of the scraper 6 and is close to the joint of the side wall and the bottom of the furnace wall 14, the end part of the rotating shaft is fixedly connected with a rotating block 64, the outer surface of the rotating block 64 is conical, and the outer surface of the rotating block 64 is close to the surface of the joint of the side wall and the bottom of the furnace wall 14; the outer surface of the rotating block 64 close to the scraper 6 is uniformly provided with grooves 65 around the rotating shaft, and the cross section of each groove 65 is in a right trapezoid shape.
During operation, because of the inclined surface of the inclined hopper 4, slag is mainly accumulated at the bottom of the inclined hopper 4 in a centralized manner, the scraper 6 moves to drive the rotating block 64 at the end part to rotate together, and the rotating block 64 removes the slag accumulated and adhered at dead corners of the bottom, so that the problem that the slag accumulation occurs at dead corners between the upper surface of the inclined hopper 4 and the side wall of the furnace wall 14 to influence the slag treatment efficiency during long-time operation can be avoided; and the slag is discharged from the loose dead angle of shovel, and is discharged along with the rotation of scraper 6 to slag discharge port 141, effectively avoiding the problem that the slag is not easy to be cleaned up and is easily accumulated at the dead angle of furnace bottom, the cross section of groove 65 arranged on rotary block 64 is right trapezoid, when lug 143 cooperates, the slag embedded in groove 65 can be extruded out, and the normal operation of the device is ensured.
In an embodiment of the present invention, the furnace wall 14 is provided with a convex corner 142 near the bottom of the furnace, the convex corner 142 is provided with a bump 143 on the lower surface, and the bump 143 is matched with the groove 65.
During operation, the scraper blade begins to move, and the lug 143 of setting on salient 142 cooperatees with recess 65 on the turning block, guarantees that rotatory piece 64 revolves the rotation of axes, and the pivot links firmly with rotatory piece 64, makes the pivot follow rotatory piece 64 rotatory, and the pivot links firmly with rotatory break bar 62, guarantees that rotatory break bar 62 accomplishes rotary motion, realizes the power take off to rotatory break bar 62, avoids rotatory break bar 62 to appear skidding phenomenon in the clearance process, has influenced the normal work of rotatory break bar 62.
In an embodiment of the invention, one end of the scraper 6 close to the furnace wall 14 extends upwards along the inner wall, one side of the scraper 6 close to the inclined bucket 4 and the furnace wall 14 is wider than the side far away from the inclined bucket 4 and the furnace wall 14, and is provided with a sharp cutting edge towards the rotating direction, one side of the scraper 6 provided with the sharp cutting edge is a curved surface, and the other side is a vertical plane.
When the slag removing device works, the scraper 6 with the end part extending upwards can scrape off slag adhered to the furnace wall 14, so that the slag removing efficiency is further improved; because the one side that is close to the direction of rotation on the scraper 6 is the curved surface, and the curved surface is located sharp-pointed blade portion top, at scraper 6 rotation in-process, sharp-pointed tip on the scraper 6 acts on the slag, the separation on slag and the 4 surfaces of tipping bucket has been accelerated, and the slag upwards slides along the curved surface of sharp-pointed blade portion top after being shoveled out, the slag of scraping is pushed by the curved surface and is crowded, and move under pivoted centrifugal action and arrange the cinder notch 141 and discharge, avoid the slag to be equipped with sharp-pointed blade portion's surface on scraper 6 and pile up in a large number, the resistance of scraper 6 has been increased.
The specific working process is as follows:
when in work, when a factory smelts metal, the slag generated by the combustion chamber of the metal smelting furnace enters the slag crushing cavity 12, the slag with smaller volume smoothly enters the slag discharging cavity 13 through the gap between the side wall of the slag crushing cavity 12 and the slag crushing roller 122, and the slag having a large volume is caught in the gap between the sidewall of the slag crushing chamber 12 and the slag crushing roller 122 or falls down on the grating 123 to be stopped, and then the motor is started, so that the slag crushing roller 122 in the slag crushing cavity 12 is driven by the eccentric shaft 3 to eccentrically rotate, the slag in the gap between the side wall of the slag crushing cavity 12 and the slag crushing roller 122 is extruded and crushed, the crushed slag can smoothly fall into the inclined hopper 4 in the slag discharging cavity 12 through the grating 123, the scraper 6 connected with the second shaft 33 scrapes and pushes the crushed slag on the inclined hopper 4, when the scraper 6 rotates around the second shaft 33 to the position of the slag discharge port 141, the slag slides out of the slag discharge chamber 13 along the inclined surface of the inclined hopper 4.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a metal smelting furnace hearth structure which characterized in that: the furnace hearth comprises a furnace hearth (1) and an observation frame (2), wherein the furnace hearth (1) is arranged in the center of the observation frame (2), the furnace hearth (1) comprises a smelting chamber (11), a slag crushing cavity (12), a slag discharging cavity (13) and a furnace wall (14), the smelting chamber (11) is positioned above the furnace hearth (1), the slag discharging cavity (13) is positioned below the furnace hearth (1), the area between the smelting chamber (11) and the slag discharging cavity (13) in the furnace hearth (1) is the slag crushing cavity (12), and the side wall surface of the slag crushing cavity (12) is uniformly and fixedly connected with a blocking block (121); a slag crushing roller (122) is arranged in the slag crushing cavity (12), the slag crushing roller (122) is conical, and the small end of the slag crushing roller (122) is positioned at the top; the bottom end of the slag crushing roller (122) is provided with an eccentric shaft (3), the eccentric shaft (3) comprises a connecting block (31), a first shaft (32) and a second shaft (33), and the first shaft (32) is rotatably connected with the center of the bottom of the slag crushing roller (122); the bottom of the first shaft (32) is eccentrically and fixedly connected with the top of the second shaft (33) through a connecting block (31), and the second shaft (33) penetrates through the central part of an inclined hopper (4) arranged at the bottom of the hearth (1) and is connected with a motor (5) arranged at the bottom of the hearth (1); a dustproof bushing (51) is arranged between the second shaft (33) and the inclined hopper (4); the side surface of the second shaft (33) is uniformly and fixedly connected with scrapers (6) with the same slope as the inclined buckets (4), the blade parts of the scrapers (6) are tightly contacted with the upper surface of the inclined buckets (4), and slag discharge ports (141) are arranged at the positions, close to the bottom surface, on the side wall of the furnace wall (14); a grating (123) is arranged below the slag crushing roller (122), a plurality of supporting tables (124) are uniformly arranged on the inner surface of the furnace wall (14), and one end, close to the furnace wall (14), of the grating (123) is fixedly connected with the upper surfaces of the supporting tables (124).
2. A metallurgical furnace hearth structure according to claim 1, characterized in that: the scraper blade part of the scraper (6) is uniformly provided with scraper grooves (61), a rotary cutter wheel (62) is arranged in the scraper grooves, and the outer surface of the rotary cutter wheel (62) is uniformly provided with cutter heads (621) distributed in an annular manner; the rotary knife flywheel (62) is rotatably connected with the inner surface of the scraper groove (61) through a rotating shaft (63), and the rotary knife flywheel (62) is fixedly connected with the rotating shaft (63).
3. A metallurgical furnace hearth structure according to claim 2, characterized in that: the end part of the cutter head (621) is sharp and is bent along the rotating direction, and the part of the end part of the cutter head (621) opposite to the upper surface of the inclined bucket (4) is a rounded cambered surface (622).
4. A metallurgical furnace hearth structure according to claim 3, characterized in that: the end part of the rotating shaft (63) extends out of the scraper (6) and is close to the joint of the side wall and the bottom of the furnace wall (14), the end part of the rotating shaft (63) is fixedly connected with a rotating block (64), the outer surface of the rotating block (64) is conical, and the outer surface of the rotating block (64) is close to the surface of the joint of the side wall and the bottom of the furnace wall (14); the outer surface of the rotating block (64) close to the scraper (6) is uniformly provided with grooves (65) around the rotating shaft (62), and the cross section of each groove (65) is in a right trapezoid shape.
5. A metallurgical furnace hearth structure according to claim 4, characterized in that: the furnace wall (14) is provided with a convex angle (142) close to the furnace bottom, the lower side surface of the convex angle (142) is uniformly provided with a lug (143), and the lug (143) is matched with the groove (65).
6. A metallurgical furnace hearth structure according to claim 5, characterized in that: one end of the scraper (6) close to the furnace wall (14) extends upwards along the inner wall, one side of the scraper (6) close to the inclined bucket (4) and the furnace wall (14) is wider than the side far away from the inclined bucket (4) and the furnace wall (14), and a sharp edge is arranged towards the rotating direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111128401.1A CN113865353A (en) | 2021-09-26 | 2021-09-26 | Hearth structure of metal smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111128401.1A CN113865353A (en) | 2021-09-26 | 2021-09-26 | Hearth structure of metal smelting furnace |
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| CN113865353A true CN113865353A (en) | 2021-12-31 |
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| CN202111128401.1A Pending CN113865353A (en) | 2021-09-26 | 2021-09-26 | Hearth structure of metal smelting furnace |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1352578A (en) * | 1970-06-12 | 1974-05-08 | Nakamichi Kikai Kk | Slag removing equipment |
| US7322538B1 (en) * | 1997-11-27 | 2008-01-29 | Metallgesellschaft Ag | Slag crusher |
| CN101644439A (en) * | 2009-08-31 | 2010-02-10 | 北京国电富通科技发展有限责任公司 | Coal burning boiler hearth deslagging device |
| CN211471517U (en) * | 2019-11-22 | 2020-09-11 | 济源市丰源机械制造有限公司 | Slag cleaning device of electroslag remelting furnace |
-
2021
- 2021-09-26 CN CN202111128401.1A patent/CN113865353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1352578A (en) * | 1970-06-12 | 1974-05-08 | Nakamichi Kikai Kk | Slag removing equipment |
| US7322538B1 (en) * | 1997-11-27 | 2008-01-29 | Metallgesellschaft Ag | Slag crusher |
| CN101644439A (en) * | 2009-08-31 | 2010-02-10 | 北京国电富通科技发展有限责任公司 | Coal burning boiler hearth deslagging device |
| CN211471517U (en) * | 2019-11-22 | 2020-09-11 | 济源市丰源机械制造有限公司 | Slag cleaning device of electroslag remelting furnace |
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