Environment-friendly direct-current submerged arc furnace facilitating feeding

Abstract

The invention discloses an environment-friendly direct-current submerged arc furnace convenient to feed, and belongs to the technical field of direct-current submerged arc furnaces. The environment-friendly direct-current submerged arc furnace convenient to feed comprises a submerged arc furnace body, a furnace cover is fixed to the top end of the submerged arc furnace body, a furnace cover is arranged above the furnace cover, two feeding pipelines are arranged above the furnace cover, and T-shaped feeding cylinders are arranged on the upper portions of inner cavities of the feeding pipelines; a fixing ring piece is welded to the position, located on the inner wall of the feeding pipeline, below the T-shaped feeding cylinder, and the bottom face of the upper portion of the T-shaped feeding cylinder penetrates through the fixing ring piece through an elastic lifting positioning assembly and is driven by an eccentric wheel mechanism which is located below the T-shaped feeding cylinder and located in an inner cavity of the feeding pipeline in a force application mode. And the eccentric wheel mechanism drives the elastic lifting positioning assembly to penetrate through and lift in the fixed ring piece, so that the T-shaped feeding cylinder is driven to lift up and down in the inner cavity of the feeding pipeline to push ore added into the feeding pipeline. According to the ore feeding device, ore can rapidly and evenly fall under pushing of the T-shaped feeding cylinder, blocking is prevented, and the feeding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of direct current ore-fired furnaces, in particular to an environmentally friendly direct current ore-fired furnace which is convenient for charging. Background Art

[0002] A DC submerged arc furnace is an electric heating device used in the metallurgical industry to extract metals from ores. It is mainly used to produce ferroalloys, ferrosilicon, ferromanganese, etc., and is sometimes used to treat waste slag or recover rare metals. A DC submerged arc furnace is based on the Joule heating effect generated when an electric current passes through a resistor. In a DC submerged arc furnace, one pole of the power supply is connected to the conductive material in the molten pool (cathode), and the other pole is connected to the electrode located on the top of the furnace (anode). When the current flows, an arc is formed between the two poles, generating a high temperature, which is sufficient to melt the ore and the reducing agent and promote the chemical reaction to reduce the metal from its oxide.

[0003] Traditional submerged arc furnaces have several deficiencies in design and operation, especially in the design of the feeding system, which affect the operating efficiency and safety of submerged arc furnaces. For example, traditional submerged arc furnaces usually use straight-through feeding pipes, which lack effective guidance and dispersion mechanisms. When the ore enters the pipe, due to gravity, larger lumps tend to accumulate in the pipe, forming a blockage. Once a blockage occurs, production must be stopped for cleaning, resulting in a production line pause, increased downtime, and reduced production efficiency. Frequent blockages require more manual intervention, increasing maintenance costs and time. For example, in some cases, it may be necessary to dismantle part of the pipe to clear the blockage, which further extends the maintenance cycle. When manually cleaning the blockage, the operator needs to be close to the high temperature environment, which increases the safety risk. In addition, if the blockage falls suddenly, it may cause equipment damage or personal injury.

[0004] After searching, the existing Chinese patent publication number is: CN216953998U. A mineral arc furnace charging and energy-saving drying device includes a drying cylinder, a feeding cylinder is installed inside the drying cylinder, a plurality of air inlet holes are penetrated through the outer wall of the feeding cylinder, and the bottom of the outer wall of the drying cylinder is connected to two fans symmetrically distributed on the left and right; a preheating box, the preheating box is installed on the bottom end surface of the drying cylinder, and a conveying box is installed inside the preheating box, so that when the burning material is poured into the feeding cylinder, the smoke sprayed from the plurality of air inlet holes dries the material, and the dried material falls into the conveying box, and the conveying box can absorb the heat in the smoke in the smoke layer and evaporate the water vapor in the material, thereby further drying the material, thereby achieving the effect of drying the material by utilizing the heat of the smoke.

[0005] The patent documents cited above also have the same problem. Submerged arc furnaces usually use straight-through feeding pipes, which lack effective guidance and dispersion mechanisms. When ore enters the pipe, due to gravity, larger lumps tend to accumulate in the pipe, causing blockage. Summary of the invention

[0006] The object of the present invention is to provide an environmentally friendly direct current ore-fired furnace which is convenient for charging, so as to solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an environmentally friendly DC ore-heating furnace that is easy to charge, comprising an ore-heating furnace body, a furnace cover fixed to the top of the ore-heating furnace body, a furnace cover arranged above the furnace cover, two charging pipes arranged above the furnace cover, the charging pipes penetrate the furnace cover and are input into the ore-heating furnace body for inputting ore materials into the ore-heating furnace body, a plurality of electrode members extending into the ore-heating furnace body are arranged below the furnace cover, and a transformer for generating energy required for arc generation for the electrode members is also arranged on one side of the furnace cover:

[0008] A T-shaped feeding barrel is arranged on the upper part of the inner cavity of the feeding pipe, and a fixed ring is welded below the T-shaped feeding barrel and located on the inner wall of the feeding pipe. The upper bottom surface of the T-shaped feeding barrel passes through the interior of the fixed ring through an elastic lifting and positioning component and is driven by an eccentric wheel mechanism located below the T-shaped feeding barrel and in the inner cavity of the feeding pipe, so that the eccentric wheel mechanism drives the elastic lifting and positioning component to pass through and lift in the fixed ring, thereby driving the T-shaped feeding barrel to lift up and down in the inner cavity of the feeding pipe to push the ore added to the feeding pipe.

[0009] Preferably, the elastic lifting and positioning assembly includes two positioning uprights symmetrically welded to the bottom surface of the upper portion of the T-shaped feeding barrel and compression springs sleeved around the circumference of each positioning upright.

[0010] In the preferred embodiment of the present invention, the positioning rod passes through the fixing ring longitudinally, the top end of the compression spring elastically abuts against the upper bottom surface of the T-shaped feeding cylinder, and the bottom end of the compression spring elastically abuts against the top surface of the fixing ring, so that when the T-shaped feeding cylinder is lifted up and down, the positioning rod is lifted up and down in the fixing ring.

[0011] Preferably, the top surface of the T-shaped feeding cylinder is provided with a stepped mounting recess, a feeding filter plate is arranged in the stepped mounting recess, and feeding through holes for ore to fall through are equidistantly provided in the feeding filter plate.

[0012] Preferably, a removable side panel is symmetrically embedded in the outer wall of the feeding pipe below the T-shaped feeding barrel, and the eccentric wheel mechanism includes a servo motor fixed on the outer wall of each removable side panel and an eccentric wheel fixed on the output shaft of each servo motor, and the bottom end of the positioning rod passes through the fixing ring and abuts against the outer wall of the eccentric wheel.

[0013] Preferably, a crushing ring frame is installed in a lifting manner just below the T-shaped feeding cylinder and at the lower part of the inner cavity of the feeding pipe, and a plurality of crushing cutter bodies are welded equidistantly between the inner walls of the crushing ring frame, and a sharp cutter tip is integrally formed at the top of each crushing cutter body.

[0014] Preferably, a positioning lifting sleeve is welded on the inner wall of the feeding pipe on the peripheral side of the crushing ring frame, and two positioning travel grooves are symmetrically opened longitudinally on the inner wall of the positioning lifting sleeve. A positioning travel block that rises and falls and slides in the positioning travel groove is symmetrically welded on the outer wall of the peripheral side of the crushing ring frame.

[0015] Preferably, two groups of hinges are symmetrically welded on the top surface of the crushing ring frame, each group of hinges includes two oppositely arranged hinged ear plates, an eccentric swing connecting rod is hinged between each two opposite hinged ear plates, and the top end of each eccentric swing connecting rod is hinged to the corresponding upper eccentric wheel through a pin shaft.

[0016] Preferably, a feeding valve pipe is provided directly below the crushing ring frame and at the lower part of the inner cavity of the feeding pipe, a valve plate is horizontally inserted in the feeding valve pipe, one end of the valve plate passes through the outside of the feeding pipe and is connected to an electric push-pull rod.

[0017] Preferably, in the present solution, a horizontal U-shaped mounting plate is welded to the outer wall of the feeding pipe, and the tail end of the electric push-pull rod is fixed to the inner wall of the U-shaped mounting plate.

[0018] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0019] The environmentally friendly DC ore-fired furnace is easy to charge. The T-shaped charging barrel is designed to move up and down in the charging pipe, and is driven to reciprocate by the eccentric wheel mechanism. This design allows the ore to fall quickly and evenly under the push of the T-shaped charging barrel, preventing blockage and improving the charging efficiency. The T-shaped charging barrel is not just a simple material channel. It is driven by the eccentric wheel mechanism to achieve up and down reciprocating motion. This design not only prevents ore blockage, but also performs preliminary screening and pretreatment of the ore, so that smaller particles of ore can fall more evenly, and the ore is further crushed by the crushing cutter body during the falling process. This up and down reciprocating motion actually plays the role of a "vibrating screen", which helps to make the ore fall evenly. This improves the reaction efficiency during the smelting process, and also reduces the workload of subsequent processing of large pieces of unmelted ore.

[0020] A crushing ring frame is installed under the T-type feeding barrel, on which are welded multiple crushing cutters with sharp tips. When the ore falls from the T-type feeding barrel, it will hit these crushing cutters to achieve preliminary crushing. The crushing ring frame can also rise and fall with the drive of the eccentric wheel mechanism, actively hitting the falling ore, further enhancing the crushing effect, increasing the contact area between the ore and the arc, and thus improving the smelting efficiency. In addition to the preliminary crushing of the ore, the lifting action of the crushing ring frame can also adjust the height distribution of the ore layer, thereby indirectly affecting the position adjustment of the electrode parts. When the crushing ring frame rises, it will actively hit the falling ore to increase the degree of ore crushing; when it falls, it provides better contact conditions for the electrode parts and optimizes the arc generation environment. The movement of the crushing ring frame can change the density and arrangement of the ore layer, making it easier for the electrode parts to penetrate the ore layer and form a stable arc. In addition, the crushed ore has a larger surface area, which helps to improve the arc heating efficiency and shorten the smelting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the feeding pipeline of the present invention;

[0024] Figure 3 It is a partial cross-sectional view of the feeding pipeline of the present invention;

[0025] Figure 4 It is a schematic diagram of the installation of the T-shaped feeding cylinder of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection structure of the T-shaped feeding cylinder of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection structure of the eccentric wheel of the present invention;

[0028] Figure 7 It is a schematic diagram of the connection structure of the valve plate of the present invention;

[0029] Figure 8 It is a schematic diagram of the disassembly structure of the crushing ring frame of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connection structure of the eccentric rocking connecting rod of the present invention.

[0031] Description of reference numerals:

[0032] In the figure: 1. Submerged arc furnace body; 2. Furnace cover; 3. Furnace hood; 4. Floor; 5. Feeding pipe; 6. Feeding hopper; 7. Hydraulic station; 8. Transformer; 9. Electrode parts; 10. Electrode lifting plate; 11. Discharge pipe; 12. Removable side plate; 13. Servo motor; 14. U-shaped mounting plate; 15. Through notch; 16. T-shaped feeding barrel; 17. Crushing ring frame; 18. Valve plate; 19. Feeding valve pipeline; 20. , feeding hole; 21, feeding filter plate; 22, feeding lower slide; 23, fixing ring; 24, positioning rod; 25, eccentric wheel; 26, compression spring; 27, eccentric swing connecting rod; 28, pin shaft; 29, electric push-pull rod; 30, crushing knife body; 31, sharp knife tip; 32, positioning stroke block; 33, hinged ear plate; 34, positioning lifting sleeve; 35, positioning stroke groove; 36, step installation recess. DETAILED DESCRIPTION

[0033] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0034] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this document are based on the up, down, left, right, front, back, inside and outside directions in the figures shown in the present invention, and are explained here together.

[0035] This embodiment provides Figures 1 to 9The environmentally friendly DC ore-heating furnace shown in the figure is convenient for charging, comprising an ore-heating furnace body 1, a furnace cover 2 is fixed on the top of the ore-heating furnace body 1, a furnace cover 3 is arranged above the furnace cover 2, two charging pipes 5 are arranged above the furnace cover 3, the charging pipes 5 pass through the furnace cover 3 and are input into the ore-heating furnace body 1, and ore materials are input into the ore-heating furnace body 1, a plurality of electrode members 9 extending into the ore-heating furnace body 1 are arranged below the furnace cover 3, and a transformer 8 for generating energy required for the electrode members 9 to generate an arc is also arranged on one side of the furnace cover 3: the upper part of the inner cavity of the charging pipe 5 is provided with A T-shaped feeding barrel 16 is arranged, and a fixed ring 23 is welded below the T-shaped feeding barrel 16 and on the inner wall of the feeding pipe 5. The upper bottom surface of the T-shaped feeding barrel 16 passes through the interior of the fixed ring 23 through an elastic lifting and positioning component and is driven by an eccentric wheel mechanism located below the T-shaped feeding barrel 16 and in the inner cavity of the feeding pipe 5, so that the eccentric wheel mechanism drives the elastic lifting and positioning component to pass through and lift in the fixed ring 23, thereby driving the T-shaped feeding barrel 16 to lift up and down in the inner cavity of the feeding pipe 5 to push the ore added into the feeding pipe 5. Thereby, force can be applied to the ore up and down, so that the ore moves up and down in the feeding pipe 5, thereby adjusting the position of the ore and preventing the ore from being blocked and squeezed in the upper part of the inner cavity of the feeding pipe 5 and unable to fall. By designing a T-shaped feeding barrel 16 that can move up and down, the T-shaped feeding barrel 16 can lift the ore upward and drive the ore to fall rapidly when it falls downward, thereby realizing a reciprocating motion of a stroke, thereby accelerating the entry of the ore into the ore-heating furnace body 1, which can not only prevent the ore from being blocked, but also improve the uniform falling of the ore.

[0036] In this embodiment, the elastic lifting and positioning assembly includes two positioning uprights 24 symmetrically welded to the bottom surface of the upper part of the T-shaped feeding cylinder 16 and compression springs 26 sleeved on the circumference of each positioning upright 24 .

[0037] In this embodiment, the positioning rod 24 passes through the fixed ring 23 in the longitudinal direction, the top end of the compression spring 26 elastically abuts against the upper bottom surface of the T-shaped charging barrel 16, and the bottom end of the compression spring 26 elastically abuts against the top surface of the fixed ring 23, so that when the T-shaped charging barrel 16 rises and falls, the positioning rod 24 rises and falls in the fixed ring 23, and the compression spring 26 plays a role of buffering and rapid rebound, which helps to apply force to the rebound and fall of the ore. The elastic restoring force provided by the compression spring 26 enhances the bouncing effect of the T-shaped charging barrel 16, so that the ore undergoes changes in acceleration and deceleration in a short period of time, which helps to break the possible mineral agglomeration phenomenon, so that the ore enters the ore arc furnace body 1 in a more dispersed manner, and further promotes the uniformity and efficiency of the smelting reaction.

[0038] In this embodiment, a stepped mounting recess 36 is provided on the top surface of the T-shaped feeding barrel 16, and a feeding filter plate 21 is provided in the stepped mounting recess 36. The feeding filter plate 21 has equidistantly provided feeding holes 20 for the ore to pass through and fall. The T-shaped feeding barrel 16 can move up and down elastically, so that the ore can be better bounced and dropped, so that the ore can fall evenly through the feeding hole 20, thereby reducing the risk of being blocked again. The design of the feeding hole 20 helps the ore to fall evenly. At the same time, the ore will be pre-screened before it is added to the feeding pipe 5, so that all the ore entering the feeding pipe 5 can pass through the feeding hole 20. The diameter of the ore is smaller than the diameter of the feeding hole 20 and will not be stuck. The feeding filter plate 21 can be replaced according to the actual application scenario to meet the required size of the feeding hole 20, thereby meeting the needs of feeding ore. A charging lower slope 22 is integrally formed on the edge side of the top surface of the T-shaped charging barrel 16. The charging lower slope 22 is flush with the upper outer wall of the T-shaped charging barrel 16 and abuts against the inner wall of the feeding pipe 5. The design of the charging lower slope 22 helps the ore to enter the T-shaped charging barrel 16. The charging lower slope 22 has a slope surface inside, replacing the top shape of the traditional hollow cylinder, which can guide the ore while preventing the ore from being accumulated.

[0039] In this embodiment, a removable side plate 12 is symmetrically embedded and installed below the T-shaped feeding barrel 16 and on the outer wall of the peripheral side of the feeding pipe 5. The eccentric wheel mechanism includes a servo motor 13 fixed on the outer wall of each removable side plate 12 and an eccentric wheel 25 fixed on the output shaft of each servo motor 13. The output shaft of the servo motor 13 passes through the removable side plate 12 and extends into the inner cavity of the feeding pipe 5. The eccentric wheel 25 is located in the inner cavity of the feeding pipe 5. The bottom end of the positioning rod 24 passes through the fixed ring 23 and abuts against the outer wall of the peripheral side of the eccentric wheel 25. When the servo motor 13 drives the eccentric wheel 25 to rotate eccentrically, the eccentric wheel 25 drives the positioning rod 24 to move up and down through its own eccentric trajectory.

[0040] In this embodiment, a crushing ring frame 17 is installed and lifted directly below the T-shaped feeding barrel 16 and at the lower part of the inner cavity of the feeding pipe 5. A plurality of crushing cutter bodies 30 are welded at equal intervals between the inner walls of the crushing ring frame 17, and a sharp cutter tip 31 is integrally formed at the top of each crushing cutter body 30. When the ore falls from the T-shaped feeding barrel 16, it hits the sharp cutter tip 31 downward, so that the ore can be crushed, which helps to improve the reaction efficiency in the ore arc furnace body 1. At the same time, through the lifting operation of the crushing ring frame 17, when the crushing ring frame 17 rises, it will actively hit the falling ore, thereby further improving the crushing effect of the ore.

[0041] In this embodiment, a positioning lifting sleeve 34 is welded on the inner wall of the feeding pipe 5 and the peripheral side of the crushing ring frame 17, and two positioning travel grooves 35 are symmetrically opened in the inner wall of the positioning lifting sleeve 34 in the longitudinal direction, and a positioning travel block 32 that moves up and down and slides in the positioning travel groove 35 is symmetrically welded on the peripheral side outer wall of the crushing ring frame 17. The cooperation between the positioning travel groove 35 and the positioning travel block 32 helps to position the crushing ring frame 17 when it is lifted or lowered.

[0042] In this embodiment, two groups of hinges are symmetrically welded on the top surface of the crushing ring frame 17, each group of hinges includes two oppositely arranged hinged ear plates 33, an eccentric swing link 27 is hinged between each two opposite hinged ear plates 33, and the top end of each eccentric swing link 27 is hinged to the corresponding upper eccentric wheel 25 through a pin shaft 28. When the servo motor 13 drives the through slot 15 to rotate eccentrically, the through slot 15 drives the upper positioning rod 24 and the T-shaped feeding barrel 16 to rise and fall, and simultaneously drives the eccentric swing link 27 to rise and fall eccentrically. Since both ends of the eccentric swing link 27 are hinged, the movement between the eccentric swing link 27 and the eccentric wheel 25 is not affected. When the eccentric wheel 25 drives the eccentric swing link 27 to rise, the eccentric swing link 27 drives the crushing ring frame 17 to rise in the positioning lifting sleeve 34, and the sharp knife tip 31 actively impacts the ore. When the eccentric wheel 25 drives the eccentric swing link 27 to descend, the eccentric swing link 27 drives the crushing ring frame 17 to descend in the positioning lifting sleeve 34, which can passively impact and crush the ore. The eccentric wheel 25 can not only drive the T-shaped feeding barrel 16 to rise to apply force to the ore to evenly fall and prevent blockage, but also drive the sharp knife tip 31 to rise and fall to actively and passively impact and crush the ore, thereby increasing the contact area between the ore and the electric arc and evenly releasing it, thereby further improving the reaction effect of the ore.

[0043] In this embodiment, a feeding valve pipe 19 is provided directly below the crushing ring frame 17 and at the lower part of the inner cavity of the feeding pipe 5. A valve plate 18 is horizontally inserted in the feeding valve pipe 19. One end of the valve plate 18 passes through the outside of the feeding pipe 5 and is connected to an electric push-pull rod 29.

[0044] In this embodiment, a horizontal U-shaped mounting plate 14 is welded to the outer wall of the feeding pipe 5, and the tail end of the electric push-pull rod 29 is fixed to the inner wall of the U-shaped mounting plate 14. When it is necessary to open the valve plate 18 to allow the ore to fall into the submerged arc furnace body 1, the electric push-pull rod 29 contracts and pulls to drive the valve plate 18 to withdraw to the outside of the feeding pipe 5, so that the feeding valve pipe 19 is unobstructed, allowing the ore to fall into the submerged arc furnace body 1. When it is necessary to close the feeding valve pipe 19 and not allow the ore to enter the submerged arc furnace body 1, the electric push-pull rod 29 extends and pushes the valve plate 18 into the feeding valve pipe 19 to close the feeding valve pipe 19. A through notch 15 for the valve plate 18 to pass through is provided on the outer wall of the feeding pipe 5 facing the inner wall of the U-shaped mounting plate 14. The bottom end of the submerged arc furnace body 1 is connected to a discharge pipe 11, and a hydraulic station 7 is provided between the two feeding pipes 5. The bottom end of the hydraulic station 7 is connected to an electrode lifting plate 10 through a hydraulic lifting column. The electrode member 9 extends to the top of the upper outer side of the submerged arc furnace body 1 and is installed on the bottom surface of the electrode lifting plate 10, so that the hydraulic lifting column of the hydraulic station 7 can drive the electrode lifting plate 10 to descend, so that the electrode lifting plate 10 drives the electrode member 9 to rise and fall in the submerged arc furnace body 1, and adjusts the height position of the electrode member 9. A feeding hopper 6 is welded to the top of each feeding pipe 5, and the feeding hopper 6 is located above the floor 4.

[0045] Working principle:

[0046] In this environmentally friendly direct current ore-arcing furnace that is easy to charge, the operator adds the ore to be smelted through the charging hopper 6, which is located at the top of each charging pipe 5 and serves as the entrance for the ore. The ore first falls into the T-shaped charging barrel 16, which is built into the charging pipe 5. The charging through hole 20 on the charging filter plate 21 allows the required ore to fall through. After the ore enters the T-shaped charging barrel 16, the eccentric wheel 25 driven by the servo motor 13 drives the T-shaped charging barrel 16 to move up and down through the positioning rod 24. This movement, with the help of the compression spring 26, enables the T-shaped charging barrel 16 to quickly bounce up and fall, helping the ore to fall evenly and avoiding the occurrence of blockage. The sliding slope 22 during charging is designed as a slope, which helps the ore to slide smoothly into the T-shaped charging barrel 16 and prevents material accumulation.

[0047] As the ore materials fall, they will hit the multiple crushing cutters 30 installed on the crushing ring frame 17. The sharp tip portions 31 on the top of these cutters will initially crush the larger pieces of ore, increasing their surface area for a more efficient subsequent smelting reaction. The lifting and lowering of the crushing ring frame 17 is controlled by the eccentric wheel 25 through the eccentric swing link 27. When the eccentric wheel 25 rotates, it not only moves the T-shaped feeding barrel 16 up and down, but also synchronously drives the crushing ring frame 17 to reciprocate up and down, further improving the crushing effect.

[0048] In order to manage the amount of ore entering the ore furnace body 1, the valve plate 18 in the charging valve pipe 19 will be opened or closed by the electric push-pull rod 29 when needed. The U-shaped mounting plate 14 provides stable support, and the through-slot 15 ensures that the valve plate 18 can slide horizontally. When the ore needs to enter the ore furnace body 1, the electric push-pull rod 29 is retracted to withdraw the valve plate 18 to the outside of the charging pipe 5, so that the charging valve pipe 19 is unobstructed; conversely, the electric push-pull rod 29 is extended to push the valve plate 18 into the charging valve pipe 19, closing the channel and preventing the ore from continuing to flow in.

[0049] The input AC power is converted into DC power by transformer 8 and supplied to the main body 1 of the ore-heating furnace. The DC current enters the furnace charge through the electrode 9, and an arc is formed between the electrode 9 and the ore. The high temperature of the arc causes the ore to heat up and melt rapidly. At the same time, under the action of the electric field, the ions and molecules in the ore will move, thereby promoting the reaction rate and the mixing of the ore. Then, the position of the electrode 9 is adjusted by controlling the lifting of the electrode to ensure product quality and energy utilization efficiency. The position of the electrode 9 is adjusted to find the most ideal arc generation point. When the high-temperature arc is generated, the ore is heated. The heat generated by the arc can be more effectively transferred to each ore particle, ensuring the uniformity and sufficiency of the ore being heated, thereby improving the smelting efficiency and product quality. The transformer 8 provides power to the electrode 9 to generate an arc to heat the ore. The electrode 9 extends into the interior of the main body 1 of the ore-heating furnace, and the ore is melted into the required metal product by the arc. The hydraulic station 7 is connected to the electrode lifting plate 10 through a hydraulic lifting column, and the height of the electrode member 9 can be adjusted according to the smelting requirements, so as to optimize the arc length and improve the smelting efficiency.

[0050] The product after high-temperature smelting will be deposited at the bottom of the submerged arc furnace body 1, and then discharged through the discharge pipe 11 to enter the next processing link or be directly stored.

[0051] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly direct current ore-bearing furnace that is easy to charge, comprising an ore-bearing furnace body (1), a furnace cover (2) being fixed at the top of the ore-bearing furnace body (1), a furnace cover (3) being arranged above the furnace cover (2), two charging pipes (5) being arranged above the furnace cover (3), the charging pipes (5) penetrating the furnace cover (3) and inputting into the ore-bearing furnace body (1) for inputting ore materials into the ore-bearing furnace body (1), a plurality of electrode members (9) extending into the ore-bearing furnace body (1) being arranged below the furnace cover (3), a transformer (8) being arranged on one side of the furnace cover (3) for providing energy required for the electrode members (9) to generate an electric arc, characterized in that: A T-shaped feeding barrel (16) is arranged at the upper part of the inner cavity of the feeding pipe (5), and a fixed ring (23) is welded below the T-shaped feeding barrel (16) and located on the inner wall of the feeding pipe (5). The upper bottom surface of the T-shaped feeding barrel (16) passes through the interior of the fixed ring (23) through an elastic lifting and positioning component and is driven by an eccentric wheel mechanism located below the T-shaped feeding barrel (16) and in the inner cavity of the feeding pipe (5), so that the eccentric wheel mechanism drives the elastic lifting and positioning component to pass through and lift in the fixed ring (23), thereby driving the T-shaped feeding barrel (16) to lift up and down in the inner cavity of the feeding pipe (5) to push the ore added to the feeding pipe (5).

2. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 1 is characterized in that: The elastic lifting and positioning assembly comprises two positioning uprights (24) symmetrically welded to the upper bottom surface of the T-shaped feeding cylinder (16) and compression springs (26) sleeved around the circumference of each positioning upright (24).

3. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 2, characterized in that: The positioning rod (24) passes through the fixed ring (23) longitudinally, the top end of the compression spring (26) elastically abuts against the upper bottom surface of the T-shaped feeding cylinder (16), and the bottom end of the compression spring (26) elastically abuts against the top surface of the fixed ring (23), so that when the T-shaped feeding cylinder (16) moves up and down, the positioning rod (24) moves up and down in the fixed ring (23).

4. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 3 is characterized in that: The top surface of the T-shaped feeding cylinder (16) is provided with a stepped mounting recess (36), a feeding filter plate (21) is arranged in the stepped mounting recess (36), and the feeding filter plate (21) is provided with feeding through holes (20) at equal intervals for ore to pass through and fall.

5. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 4 is characterized in that: A removable side plate (12) is symmetrically embedded and installed below the T-shaped feeding cylinder (16) and on the peripheral outer wall of the feeding pipe (5); the eccentric wheel mechanism includes a servo motor (13) fixed on the outer wall of each removable side plate (12) and an eccentric wheel (25) fixed on the output shaft of each servo motor (13); the bottom end of the positioning vertical rod (24) passes through the fixed ring (23) and abuts against the peripheral outer wall of the eccentric wheel (25).

6. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 5, characterized in that: A crushing ring frame (17) is installed in a lifting manner directly below the T-shaped feeding cylinder (16) and at the lower part of the inner cavity of the feeding pipe (5). A plurality of crushing knife bodies (30) are welded at equal intervals between the inner walls of the crushing ring frame (17). A sharp knife tip (31) is integrally formed at the top end of each crushing knife body (30).

7. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 6, characterized in that: A positioning lifting sleeve (34) is welded on the inner wall of the feeding pipe (5) on the peripheral side of the crushing ring frame (17), and two positioning travel grooves (35) are symmetrically opened in the inner wall of the positioning lifting sleeve (34) in the longitudinal direction. A positioning travel block (32) that is lifted and slid in the positioning travel grooves (35) is symmetrically welded on the outer wall of the peripheral side of the crushing ring frame (17).

8. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 7, characterized in that: Two groups of hinged parts are symmetrically welded on the top surface of the crushing ring frame (17), and each group of hinged parts includes two hinged ear plates (33) arranged opposite to each other. An eccentric swing link (27) is hinged between each two opposite hinged ear plates (33), and the top end of each eccentric swing link (27) is hinged to the corresponding upper eccentric wheel (25) through a pin shaft (28).

9. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 8, characterized in that: A feeding valve pipeline (19) is provided directly below the crushing ring frame (17) and at the lower part of the inner cavity of the feeding pipeline (5). A valve plate (18) is horizontally inserted in the feeding valve pipeline (19). One end of the valve plate (18) passes through the outside of the feeding pipeline (5) and is connected to an electric push-pull rod (29).

10. The environmentally friendly direct current ore-fired furnace that is easy to charge according to claim 9, characterized in that: A horizontal U-shaped mounting plate (14) is welded to the outer wall of the feeding pipe (5), and the tail end of the electric push-pull rod (29) is fixed to the inner wall of the U-shaped mounting plate (14).

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