A metal smelting furnace hearth structure

Abstract

The present invention belongs to the technical field of industrial metal smelting, and specifically is a furnace structure of a metal smelting furnace. A No. 3 oblique bucket, a No. 2 shaft, a scraper, and a slag discharge port are arranged at the furnace bottom. The scraper rotates around the No. 2 shaft and scrapes the slag dropped on the furnace bottom, pushing the slag to slide out of the slag discharge port along the oblique direction of the No. 3 oblique bucket. At the same time, a scraper groove is designed on the scraper, and a rotating knife wheel and a rotating block are installed, so that the slag adhered to the surface of the No. 3 oblique bucket and the dead corner of the furnace bottom can be scraped and cleaned. The hook-shaped knife head on the rotating knife wheel can more effectively remove stubborn slag, thereby improving the slag removal efficiency and quality. The convex corners and convex blocks designed on the furnace wall ensure that the rotating block and the rotating knife wheel can rotate to prevent slipping, thereby realizing automatic slag removal. At the same time, a slag crushing mechanism is provided, and the volume of the slag discharged from the furnace is small, which is convenient for cleaning, saving manpower and improving safety.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial metal smelting, in particular to a hearth structure of a metal smelting furnace. Background Art

[0002] Smelting is a refining technology, which refers to the extraction of metals from ores by roasting, smelting, electrolysis and the use of chemical agents; reducing impurities in metals or increasing certain components in metals to refine the required metals. The burning of fuel will generate bottom slag at the bottom of the smelting furnace. The bottom slag is mostly large blocks, and workers usually shovel it out from the slag outlet with a shovel, which will increase labor intensity. At the same time, due to the high temperature, it is easy to burn. A slag cleaning device that saves manpower is urgently needed.

[0003] There is also a patent in the prior art about a slag cleaning device for a metal smelting furnace, such as a slag cleaning device for a metal smelting furnace with application number 201721881743.X, comprising a shell, one side of the upper end of the shell is hinged to a support plate by a pin shaft, a support mechanism is provided at the lower end of the support plate, the support mechanism comprises a first slideway opened at the lower end of the support plate, a sleeve is obliquely provided on the inner wall of one side of the shell, a support rod is inserted in the sleeve, a first slider is provided at the upper end of the support rod, the first slider is slidably arranged in the first slideway, a second magnet is provided at the lower end of the support rod, a first magnet is provided at the bottom position of the sleeve, and the first magnet and the second magnet have the same magnetic properties, a limit block is provided on the end of the shell away from the hinge, a slag guide plate is provided on the inner wall of the side of the shell away from the hinge, a collecting bin is provided at the lower end of the slag guide plate, and a cleaning mechanism is provided on the support plate.

[0004] However, the above device has the following disadvantages: since the support plate is in a straight state, when discharging ash, when the gravity just reaches the discharge requirement, the support plate tilts at a very small angle, resulting in a very small discharge amount, and the scraper cannot use the weight of the counterweight block to complete the cleaning work, resulting in a poor cleaning effect; the device will generate large pieces of slag at the bottom of the furnace, which are difficult to remove.

[0005] In view of this, the present invention solves the above technical problems by proposing a metal smelting furnace hearth structure. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the problem that the existing metal smelting furnace is difficult to automatically remove the slag during operation, and that large pieces of slag are not easy to remove during the removal process and that the temperature is too high to easily burn workers is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a metal smelting furnace hearth structure, including a hearth and an observation frame, the hearth is installed in the center of the observation frame, the hearth includes a smelting chamber, a slag crushing chamber, a slag discharge chamber and a furnace wall, the smelting chamber is located above the hearth, the slag discharge chamber is located below the hearth, the area inside the hearth between the smelting chamber and the slag discharge chamber is the slag crushing chamber, and the side wall surface of the slag crushing chamber is evenly fixed with blocking blocks; a slag crushing roller is arranged in the slag crushing chamber, the slag crushing roller is conical, and the small end of the slag crushing roller is located at the top; an eccentric shaft is arranged at the bottom end of the slag crushing roller, and the eccentric shaft includes a connecting block, a first shaft and a second shaft, The No. 1 shaft is rotatably connected to the center position of the bottom of the slag crushing roller; the bottom of the No. 1 shaft and the top of the No. 2 shaft are eccentrically fixedly connected by a connecting block, and the No. 2 shaft passes through the central part of the inclined bucket arranged at the bottom of the furnace cylinder, and is connected to the motor arranged at the bottom of the furnace cylinder; a dustproof bushing is arranged between the No. 2 shaft and the inclined bucket; a scraper with the same slope as the inclined bucket is evenly fixedly connected to the side of the No. 2 shaft, and the blade of the scraper is in close contact with the upper surface of the inclined bucket, and a slag discharge port is arranged on the side wall of the furnace wall near the bottom surface; a grille is installed below the slag crushing roller, and a plurality of support platforms are evenly arranged on the inner surface of the furnace wall, and one end of the grille close to the furnace wall is fixedly connected to the upper surface of the support platform.

[0008] During operation, when the factory is smelting metal, the slag generated in the combustion chamber of the metal smelting furnace enters the slag crushing chamber, among which the smaller slag passes smoothly through the gap between the side wall of the slag crushing chamber and the slag crushing roller and enters the slag discharge chamber, while the larger slag is stuck in the gap between the side wall of the slag crushing chamber and the slag crushing roller. Then, the motor is started, so that the slag crushing roller in the slag crushing chamber rotates eccentrically under the drive of the eccentric shaft, and the distance between the eccentrically moving slag crushing roller and the furnace wall is constantly changing, so that the slag in the gap between the side wall of the slag crushing chamber and the slag crushing roller is squeezed and crushed, and the crushed slag can smoothly pass through the gap between the side wall of the slag crushing chamber and the slag crushing roller and fall into the slag discharge chamber, thereby achieving the effect of squeezing and crushing the slag, avoiding that large pieces of slag are difficult to discharge and affect the normal operation of the metal smelting furnace; and because of the effect of the grid, when the slag after the action of the slag crushing roller falls on the grid, small pieces of slag can pass through the grid directly, and large pieces of slag will be blocked by the grid and cannot pass through, and are continuously squeezed and crushed under the action of the slag crushing roller above the grid until the volume of the slag is sufficient The gaps in the grille ensure that the slag entering the slag discharge chamber is fully crushed; when the slag is stuck in the gap between the slag crushing roller and the side wall of the slag crushing chamber, the slag with a shape close to a ball may rotate with the slag crushing roller in the gap, so blocking blocks are evenly arranged on the inner surface of the furnace wall, which can effectively prevent large pieces of slag from being difficult to be fully crushed as the slag crushing roller rotates. The minimum distance between the slag crushing roller and the furnace wall during movement is greater than the width of the blocking block, and the large pieces of slag are squeezed and crushed into small pieces by the slag crushing roller and the inner wall of the slag crushing chamber and then fall off The slag falls into the inclined bucket below and is crushed for the first time in the furnace, which can reduce the workload of subsequent slag crushing and improve the slag discharge efficiency and degree; a dustproof bushing is installed in the gap between the inclined bucket and the No. 2 shaft to protect the external motor from dust and increase the service life of the motor; and the scraper connected to the No. 2 shaft removes and pushes the crushed slag on the inclined bucket. When the scraper rotates around the No. 2 shaft to the position of the slag discharge port, the slag slides out of the slag discharge cavity along the inclined surface of the inclined bucket, realizing the automatic discharge of the slag, saving manpower and improving safety.

[0009] Preferably, scraper grooves are evenly arranged on the blade portion of the scraper, a rotating cutter wheel is installed in the scraper groove, and the outer surface of the rotating cutter wheel is evenly provided with ring-distributed cutter heads; the rotating cutter wheel is rotatably connected to the inner surface of the scraper groove through a rotating shaft, and the rotating cutter wheel is fixed to the rotating shaft.

[0010] During operation, when some of the slag with higher temperature falls into the slag crushing chamber and is located on the upper surface of the inclined bucket, the melted part of the slag solidifies and tightly adheres to the upper surface of the inclined bucket during the cooling process, increasing the difficulty of manual slag removal; therefore, a rotating knife wheel is provided on the scraper, and when the scraper rotates around the No. 2 axis, because the rotating knife wheel contacts the surface of the inclined bucket and rotates under the friction between the tightly attached slag, the knife head on the rotating rotating knife wheel repeatedly hits and shovels the solidified and adhered slag on the inclined bucket, accelerating the separation of the tightly adhered slag from the inclined bucket, and the shoveled slag is smoothly pushed to the slag discharge port for discharge, which solves the problem that the slag sticks to the bottom of the furnace and is difficult to clean, and further accelerates the discharge of the slag, thereby reducing the workload of manual slag removal and ensuring the safety of the slag removers.

[0011] Preferably, the end of the cutter head is sharp and is bent along the rotation direction to form a hook shape, and the portion of the end of the cutter head facing the upper surface of the inclined bucket is a rounded arc surface.

[0012] During operation, the rotating cutter wheel rotates driven by the connected rotating shaft and shovels the slag attached to the surface of the inclined bucket. When slag is attached to the part where the cutter head acts, the end of the cutter head is inserted into the gap of the slag attached to the surface of the inclined bucket, and relies on the hook structure to scrape the slag off the surface of the inclined bucket during rotation, thereby accelerating the detachment of the slag; when the slag attached to the part where the cutter head acts has been effectively removed, the arc surface on the cutter head contacts the surface of the inclined bucket, reducing the impact on the surface of the inclined bucket and avoiding damage to the surface of the inclined bucket and the end of the cutter head during impact. The scraped slag is pushed out of the slag discharge port as the scraper rotates, thereby further improving the efficiency of the slag removal work.

[0013] Preferably, the end of the rotating shaft extends out of the scraper and is close to the junction of the side wall and the bottom of the furnace wall, and a rotating block is fixedly connected to the end of the rotating shaft, the outer surface of the rotating block is conical, and the outer surface of the rotating block is close to the surface of the junction of the side wall and the bottom of the furnace wall; the outer surface of the rotating block close to the scraper is evenly provided with grooves around the rotating shaft, and the cross-section of the groove is a right-angle trapezoid.

[0014] During operation, due to the inclined surface of the inclined bucket, the slag is mainly accumulated at the bottom of the inclined bucket. The movement of the scraper drives the rotating block at the end to rotate together. The rotating block removes the slag accumulated and adhered in the dead corner of the bottom, which can avoid slag accumulation in the dead corner between the upper surface of the inclined bucket and the side wall of the furnace wall during long-term operation, affecting the efficiency of slag treatment; and the slag loosened in the dead corner is discharged to the slag discharge port as the scraper rotates, effectively avoiding the problem of slag accumulation in the dead corner of the furnace bottom that is difficult to clean. The cross-section of the groove set on the rotating block is a right-angle trapezoid. When the convex block cooperates, the slag embedded in the groove can be squeezed out to ensure the normal operation of the device.

[0015] Preferably, a convex corner is arranged on the furnace wall near the furnace bottom, and bumps are evenly arranged on the lower surface of the convex corner, and the bumps match with the grooves.

[0016] During operation, the scraper starts to move, and the convex block set on the convex corner cooperates with the groove on the rotating block to ensure that the rotating block rotates around the rotating shaft. The rotating shaft is fixedly connected to the rotating block, so that the rotating shaft rotates with the rotating block. The rotating shaft is fixedly connected to the rotating cutter wheel to ensure that the rotating cutter wheel completes the rotational motion, realizes the power output to the rotating cutter wheel, and avoids the rotating cutter wheel slipping during the cleaning process, which affects the normal operation of the rotating cutter wheel.

[0017] Preferably, one end of the scraper close to the furnace wall extends upward along the inner wall, the side of the scraper close to the inclined bucket and the furnace wall is wider than the side away from the inclined bucket and the furnace wall, and a sharp blade is provided in the direction of rotation, and the one side of the scraper with the sharp blade is a curved surface, and the other side is a vertical plane.

[0018] During operation, the scraper with the end extending upward can scrape off the slag stuck to the furnace wall, thereby further improving the slag removal efficiency; because the side of the scraper close to the rotation direction is a curved surface, and the curved surface is located above the sharp blade portion, during the rotation of the scraper, the sharp end of the scraper acts on the slag, accelerating the separation of the slag from the surface of the inclined bucket, and after the slag is shoveled out, it slides upward along the curved surface above the sharp blade portion, and the scraped slag is pushed by the curved surface and moves to the slag discharge port under the centrifugal action of the rotation to be discharged, thereby avoiding the accumulation of a large amount of slag on the surface of the scraper where the sharp blade portion is provided, thereby increasing the resistance of the scraper.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention discloses a metal smelting furnace hearth structure, in which a slag crushing chamber is arranged on the upper part of the slag discharge chamber, and the slag crushing chamber is provided with a slag crushing roller, a blocking block, a filter screen, a supporting block and an eccentric shaft. Driven by an external motor, the distance between the slag crushing roller and the furnace wall is continuously changed through the eccentric shaft, thereby squeezing and crushing large pieces of slag falling on the filter screen, and crushing the small pieces of slag into smaller pieces, which are more easily pushed and discharged by a scraper. The initial slag crushing in the furnace can also reduce the workload of the later slag crushing, and improve the slag discharge efficiency and the degree of slag crushing.

[0021] 2. The present invention describes a furnace structure of a metal smelting furnace, by arranging an inclined bucket, a No. 2 shaft, a scraper, and a slag discharge port at the furnace bottom. The scraper rotates around the No. 2 shaft and scrapes the slag dropped on the furnace bottom, pushing the slag to slide out of the slag discharge port along the inclined direction of the inclined bucket. At the same time, by designing a scraper groove on the scraper, installing a rotating knife wheel and a rotating block, the slag adhered to the surface of the inclined bucket and the dead corners of the furnace bottom can be scraped and cleaned. The hook-shaped knife head on the rotating knife wheel can more effectively remove stubborn slag, thereby improving the slag removal efficiency and quality. The convex corners and convex blocks designed on the furnace wall ensure that the rotating block and the rotating knife wheel can rotate to prevent slipping, thereby realizing automatic slag removal, saving manpower, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 It is a partial cross-sectional view of the cylinder body;

[0025] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0026] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0027] Figure 5 FIG. 1 is a three-dimensional diagram of a rotating cutter wheel;

[0028] Figure 6 FIG. 1 is a cross-sectional view of a scraper;

[0029] In the figure: furnace cylinder 1, smelting chamber 11, slag crushing chamber 12, blocking block 121, slag crushing roller 122, grille 123, support platform 124, slag discharge chamber 13, furnace wall 14, slag discharge port 141, convex corner 142, protrusion 143, observation frame 2, eccentric shaft 3, connecting block 31, shaft No. 1 32, shaft No. 2 33, inclined bucket 4, motor 5, dustproof bushing 51, scraper 6, scraper groove 61, rotating cutter wheel 62, cutter head 621, arc surface 622, rotating shaft 63, rotating block 64, groove 65. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figures 1 to 6As shown, a metal smelting furnace hearth structure of the present invention comprises a hearth 1 and an observation frame 2, wherein the hearth 1 is installed at the center of the observation frame 2, the hearth 1 comprises a smelting chamber 11, a slag crushing chamber 12, a slag discharge chamber 13 and a furnace wall 14, the smelting chamber 11 is located at the upper part of the hearth 1, the slag discharge 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 discharge chamber 13 is the slag crushing chamber 12, the side wall surface of the slag crushing chamber 12 is evenly fixed with a blocking block 121; a slag crushing roller 122 is arranged in the slag crushing chamber 12, the slag crushing roller 122 is conical, and the small end of the slag crushing roller 122 is located at the top; an eccentric shaft 3 is arranged at the bottom end of the slag crushing roller 122, the eccentric shaft 3 comprises a connecting block 31, a first shaft 32 and a second shaft 33, the first shaft 3 2 is rotatably connected to the bottom center of the slag crushing roller 122; the bottom of the No. 1 shaft 32 and the top of the No. 2 shaft 33 are eccentrically fixedly connected by a connecting block 31, and the No. 2 shaft 33 passes through the central part of the inclined bucket 4 set at the bottom of the furnace cylinder 1, and is connected to the motor 5 set at the bottom of the furnace cylinder 1; a dustproof bushing 51 is provided between the No. 2 shaft 33 and the inclined bucket 4; a scraper 6 with the same slope as the inclined bucket 4 is evenly fixedly connected to the side of the No. 2 shaft 33, and the blade of the scraper 6 is in close contact with the upper surface of the inclined bucket 4, and a slag discharge port 141 is provided on the side wall of the furnace wall 14 near the bottom surface; a grille 123 is installed below the slag crushing roller 122, and a plurality of support platforms 124 are evenly arranged on the inner surface of the furnace wall 14, and one end of the grille 123 close to the furnace wall 14 is fixedly connected to the upper surface of the support platform 124.

[0032] During operation, when the factory is smelting metal, the slag generated in the combustion chamber of the metal smelting furnace enters the slag crushing chamber 12, wherein the smaller slag passes smoothly through the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122 and enters the slag discharge chamber 13, while the larger slag is stuck in the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122. Subsequently, the motor is started to make the slag crushing roller 122 in the slag crushing chamber 12 rotate eccentrically driven by the eccentric shaft 3, and the distance between the eccentrically moving slag crushing roller 122 and the furnace wall 14 is constantly changing, so that the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122 is reduced. The slag is squeezed and crushed, and the crushed slag can smoothly pass through the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122 and fall into the slag discharge chamber 12, thereby achieving the effect of squeezing and crushing the slag, and preventing large pieces of slag from being difficult to discharge and affecting the normal operation of the metal smelting furnace; and because of the effect of the grid 123, when the slag after passing through the slag crushing roller 122 falls on the grid 123, small pieces of slag can directly pass through the grid 123, and large pieces of slag will be blocked by the grid 123 and cannot pass through, and will continue to be squeezed and crushed by the slag crushing roller 122 above the grid 123 until the volume of the slag is sufficient. The gap through the grille 123 ensures that the slag entering the slag discharge chamber 13 is fully crushed; when the slag is stuck in the gap between the slag crushing roller 122 and the side wall of the slag crushing chamber 12, the slag with a shape close to a ball may rotate with the slag crushing roller 122 in the gap, so the blocking blocks 121 are evenly arranged on the inner surface of the furnace wall 14, which can effectively prevent large pieces of slag from being fully crushed as the slag crushing roller 122 rotates. The minimum distance between the slag crushing roller 122 and the furnace wall 14 during movement is greater than the width of the blocking block 121, and the large pieces of slag are squeezed by the slag crushing roller 122 and the inner wall of the slag crushing chamber 12 After being crushed into small pieces, they fall into the inclined bucket 4 below. The initial slag crushing in the furnace can reduce the workload of subsequent slag crushing and improve the slag discharge efficiency and degree of slag crushing; a dustproof bushing 51 is installed in the gap between the inclined bucket 4 and the No. 2 shaft 33 to protect the external motor 5 from dust and increase the service life of the motor 5; and the scraper 6 connected to the No. 2 shaft 33 removes and pushes the crushed slag on the inclined bucket 4. When the scraper 6 rotates around the No. 2 shaft 33 to the position of the slag discharge port 141, the slag slides out of the slag discharge cavity 13 along the inclined surface of the inclined bucket 4, thereby realizing the automatic discharge of the slag, saving manpower and improving safety.

[0033] In a specific embodiment of the present invention, scraper grooves 61 are evenly arranged on the blade portion of the scraper 6, a rotating cutter wheel 62 is installed in the scraper groove 61, and the outer surface of the rotating cutter wheel 62 is evenly provided with ring-distributed cutter heads 621; the rotating cutter wheel 62 is rotatably connected to the inner surface of the scraper groove 61 through a rotating shaft, and the rotating cutter wheel 62 is fixed to the rotating shaft.

[0034] During operation, when some of the slag with higher temperature falls into the slag crushing chamber 12 and is located on the upper surface of the inclined bucket 4, the molten part of the slag solidifies during the cooling process and is tightly bonded to the upper surface of the inclined bucket 4, increasing the difficulty of manual slag removal; therefore, a rotating knife wheel 62 is provided on the scraper 6. When the scraper 6 rotates around the second axis 33, because the rotating knife wheel 62 contacts the surface of the inclined bucket 4 and rotates under the friction between the tightly attached slag, the knife head 621 on the rotating rotating knife wheel 62 repeatedly hits and shovels the condensed and adhered slag on the inclined bucket 4, accelerating the separation of the tightly adhered slag from the inclined bucket 4, and the shoveled slag is smoothly pushed to the slag discharge port 141 for discharge, which solves the problem that the slag is adhered to the bottom of the furnace and is difficult to clean, and further accelerates the discharge of the slag, thereby reducing the workload of manual slag removal and ensuring the safety of the slag removers.

[0035] In a specific implementation of the present invention, the end of the cutter head 621 is sharp and bent along the rotation direction to form a hook shape, and the portion of the end of the cutter head 621 facing the upper surface of the oblique bucket 4 is a rounded arc surface 622.

[0036] During operation, the rotating cutter wheel 62 rotates and shovels the slag attached to the surface of the inclined bucket 4 driven by the connected rotating shaft. When slag is attached to the part where the cutter head 621 acts, the end of the cutter head 621 is inserted into the gap of the slag attached to the surface of the inclined bucket 4, and relies on the hook structure to scrape the slag off the surface of the inclined bucket 4 during the rotation process, thereby accelerating the detachment of the slag; when the slag attached to the part where the cutter head 621 acts has been effectively removed, the arc surface 622 on the cutter head 621 contacts the surface of the inclined bucket 4, reducing the impact on the surface of the inclined bucket 4, avoiding damage to the surface of the inclined bucket 4 and the end of the cutter head 621 during the impact, and the scraped slag is pushed out of the slag discharge port 141 as the scraper 6 rotates, further improving the efficiency of the slag removal work.

[0037] In a specific embodiment of the present invention, the end of the rotating shaft extends out of the scraper 6 and is close to the junction of the side wall and the bottom of the furnace wall 14, and a rotating block 64 is fixedly connected to the end of the rotating shaft, and 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 junction 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 evenly provided with grooves 65 around the rotating shaft, and the cross-section of the groove 65 is a right-angled trapezoid.

[0038] During operation, due to the inclined surface of the inclined bucket 4, the slag is mainly concentrated and accumulated at the bottom of the inclined bucket 4. The movement of the scraper 6 drives the rotating block 64 at the end to rotate together. The rotating block 64 removes the slag accumulated and adhered in the dead corner of the bottom, which can avoid slag accumulation in the dead corner between the upper surface of the inclined bucket 4 and the side wall of the furnace wall 14 during long-term operation, thereby affecting the efficiency of slag treatment; and the slag loosened in the dead corner is discharged as the scraper 6 rotates to the slag discharge port 141, effectively avoiding the problem that slag is easily accumulated in the dead corner of the furnace bottom and is difficult to clean. The cross-section of the groove 65 set on the rotating block 64 is a right-angled trapezoid. When the protrusion 143 cooperates, the slag embedded in the groove 65 can be squeezed out to ensure the normal operation of the device.

[0039] In a specific implementation of the present invention, the furnace wall 14 is provided with a convex corner 142 near the furnace bottom, and the lower surface of the convex corner 142 is evenly provided with protrusions 143 , and the protrusions 143 match with the grooves 65 .

[0040] During operation, the scraper starts to move, and the protrusion 143 set on the convex corner 142 cooperates with the groove 65 on the rotating block to ensure that the rotating block 64 rotates around the rotating shaft. The rotating shaft is fixedly connected to the rotating block 64, so that the rotating shaft rotates with the rotating block 64. The rotating shaft is fixedly connected to the rotating cutter wheel 62 to ensure that the rotating cutter wheel 62 completes the rotational motion, realizes the power output to the rotating cutter wheel 62, and avoids the rotating cutter wheel 62 from slipping during the cleaning process, which affects the normal operation of the rotating cutter wheel 62.

[0041] In a specific embodiment of the present invention, one end of the scraper 6 close to the furnace wall 14 extends upward along the inner wall, the side of the scraper 6 close to the inclined bucket 4 and the furnace wall 14 is wider than the side away from the inclined bucket 4 and the furnace wall 14, and a sharp blade is arranged in the direction of rotation, and the one side of the scraper 6 with the sharp blade is a curved surface, and the other side is a vertical plane.

[0042] During operation, the scraper 6 with the end extending upward can scrape off the slag adhered to the furnace wall 14, so that the slag removal efficiency is further improved; because the side of the scraper 6 close to the rotation direction is a curved surface, and the curved surface is located above the sharp blade portion, during the rotation of the scraper 6, the sharp end of the scraper 6 acts on the slag, accelerating the separation of the slag from the surface of the inclined bucket 4, and after the slag is shoveled out, it slides upward along the curved surface above the sharp blade portion, and the scraped slag is pushed by the curved surface and moves to the slag discharge port 141 for discharge under the centrifugal action of the rotation, avoiding the accumulation of a large amount of slag on the surface of the scraper 6 where the sharp blade portion is provided, thereby increasing the resistance of the scraper 6.

[0043] The specific workflow is as follows:

[0044] During operation, when the factory is smelting metal, the slag generated in the combustion chamber of the metal smelting furnace enters the slag crushing chamber 12, and the smaller slag passes smoothly through the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122 into the slag discharge chamber 13, while the larger slag is stuck in the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122 or falls on the grid 123 and is blocked. Then the motor is started, so that the slag crushing roller 122 in the slag crushing chamber 12 rotates eccentrically under the drive of the eccentric shaft 3, and the slag in the gap between the side wall of the slag crushing chamber 12 and the slag crushing roller 122 is squeezed and crushed, and the crushed slag can smoothly pass through the grid 123 and fall into the inclined bucket 4 in the slag discharge chamber 12, and the scraper 6 connected to the No. 2 shaft 33 removes and pushes the crushed slag on the inclined bucket 4. When the scraper 6 rotates around the No. 2 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 bucket 4.

[0045] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal smelting furnace hearth structure, characterized in that: The furnace cylinder (1) comprises a furnace (1) and an observation frame (2), wherein the furnace cylinder (1) is installed at the center of the observation frame (2), the furnace cylinder (1) comprises a smelting chamber (11), a slag crushing chamber (12), a slag discharge chamber (13) and a furnace wall (14), the smelting chamber (11) is located at the upper part of the furnace cylinder (1), the slag discharge chamber (13) is located at the lower part of the furnace cylinder (1), and the area inside the furnace cylinder (1) between the smelting chamber (11) and the slag discharge chamber (13) is the slag crushing chamber (14). 12), a blocking block (121) is evenly fixedly connected to the side wall surface of the slag crushing chamber (12); a slag crushing roller (122) is arranged in the slag crushing chamber (12), the slag crushing roller (122) is conical, and the small end of the slag crushing roller (122) is located at the top; an eccentric shaft (3) is arranged at the bottom end of the slag crushing roller (122), and the eccentric shaft (3) includes a connecting block (31), a first shaft (32) and a second shaft (33), and the first shaft (32) and the slag crushing roller (122) are connected to each other. 22) is rotatably connected to the center position of the bottom of the first shaft (32); the bottom of the first shaft (32) and the top of the second shaft (33) are eccentrically fixedly connected through a connecting block (31); the second shaft (33) passes through the central part of the oblique bucket (4) arranged at the bottom of the furnace cylinder (1) and is connected to a motor (5) arranged at the bottom of the furnace cylinder (1); a dustproof bushing (51) is arranged between the second shaft (33) and the oblique bucket (4); the side of the second shaft (33) is evenly fixedly connected to the oblique bucket (4) A scraper (6) having the same slope, wherein the blade of the scraper (6) is in close contact with the upper surface of the inclined bucket (4), and a slag discharge port (141) is provided on the side wall of the furnace wall (14) near the bottom surface; a grid (123) is installed below the slag crushing roller (122), and a plurality of support platforms (124) are evenly arranged on the inner surface of the furnace wall (14), and one end of the grid (123) close to the furnace wall (14) is fixedly connected to the upper surface of the support platform (124).

2. The metal smelting furnace hearth structure according to claim 1, characterized in that: The blade portion of the scraper (6) is evenly provided with scraper grooves (61), a rotating blade wheel (62) is installed in the scraper groove, and the outer surface of the rotating blade wheel (62) is evenly provided with ring-shaped distributed blade heads (621); the rotating blade wheel (62) is rotatably connected to the inner surface of the scraper groove (61) via a rotating shaft (63), and the rotating blade wheel (62) is fixedly connected to the rotating shaft (63).

3. The metal smelting furnace hearth structure according to claim 2, characterized in that: The end of the cutter head (621) is sharp and curved along the rotation direction, and the portion of the end of the cutter head (621) facing the upper surface of the inclined bucket (4) is a rounded arc surface (622).

4. The metal smelting furnace hearth structure according to claim 3, characterized in that: The end of the rotating shaft (63) extends out of the scraper (6) and is close to the junction between the side wall and the bottom of the furnace wall (14), and a rotating block (64) is fixedly connected to the end of the rotating shaft (63). 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 junction between 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 evenly provided with grooves (65) around the rotating shaft (62), and the cross section of the groove (65) is a right-angle trapezoid.

5. The metal smelting furnace hearth structure according to claim 4, characterized in that: The furnace wall (14) is provided with a convex corner (142) near the furnace bottom, and the lower surface of the convex corner (142) is evenly provided with convex blocks (143), and the convex blocks (143) are matched with the grooves (65).

6. The metal smelting furnace hearth structure according to claim 5, characterized in that: One end of the scraper (6) close to the furnace wall (14) extends upward along the inner wall; the side of the scraper (6) close to the inclined bucket (4) and the furnace wall (14) is wider than the side away from the inclined bucket (4) and the furnace wall (14), and a sharp blade is provided in the direction of rotation.

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