阅读说明：本技术 再生铝熔炼铸锭系统 (Ingot casting system is smelted to secondary aluminum ) 是由 聂清华 陈敬福 葛明红 杨秋华 其他发明人请求不公开姓名 于 2018-07-24 设计创作，主要内容包括：本发明涉及一种再生铝熔炼铸锭系统。包括连接于相应的熔炼炉的输入流道,缓冲槽,所述输入流道的输出端与缓冲槽之间设有一回流净化坑,所述回流净化坑的输出口设置呈凸起于回流净化坑的底壁一定高度、且低于输入流道的输出端的底面,所述熔炼炉其炉门装置包括炉门行动装置,所述炉门行动装置包括连接于炉门的安全保护索。该再生铝熔炼铸锭系统结构合理,其输送浇铸液质量好,提高了再生铝的铸锭回收质量。(The invention relates to a secondary aluminum smelting ingot casting system. Including connecting in the input runner of corresponding smelting furnace, the dashpot, be equipped with a backward flow purification hole between input runner's the output and the dashpot, the delivery outlet setting of backward flow purification hole is protruding in the diapire take the altitude of backward flow purification hole, and is less than the bottom surface of input runner's output, its furnace gate device of smelting furnace includes the furnace gate running gear, the furnace gate running gear is including connecting in the safety protection cable of furnace gate. The secondary aluminum smelting and ingot casting system is reasonable in structure, the quality of conveying the casting liquid is good, and the ingot casting recovery quality of the secondary aluminum is improved.)

1. The utility model provides a secondary aluminum smelts ingot casting system, is including connecting in the input runner of corresponding smelting furnace, the dashpot, characterized by be equipped with a backward flow purification pit between the output of input runner and the dashpot, the delivery outlet setting of backward flow purification pit is protruding in the diapire take the altitude of backward flow purification pit, and is less than the bottom surface of the output of input runner, its furnace gate device of smelting furnace includes furnace gate running gear, furnace gate running gear is including connecting in the safety protection cable of furnace gate.

Technical Field

The invention relates to a reclaimed metal recovery system. In particular to a secondary aluminum smelting and ingot casting system.

Background

The method for smelting and recovering the regenerated metal containing the regenerated aluminum has the characteristics that a large amount of burning and melting ash slag, impurities and the like with large differences of weight, weight and thickness are carried in a smelting solution, when the impurities are not removed in place, the quality of a product recovered from a regenerated metal cast ingot is influenced, when the impurities are serious, the cast ingot is like bean curd residue and cannot be normally used, meanwhile, the quality of the cast ingot is influenced, the problems of oxidation in the process of conveying the smelting solution, temperature change of the metal smelting solution and the like also exist, and as the smelting and casting processes of the regenerated metal have a long separation, good cast ingot quality is obtained, and the conveying of the smelting solution is also a key and important process link. Because of the particularity of the recovered metal smelting liquid, the purification or filtration of the recovered metal smelting liquid has certain technical limitation both technically and on equipment, while the existing metal regeneration smelting ingot comprises a conveying device of an input runner and the like, because the structure and the corresponding conveying mode are not reasonable, on one hand, the effective impurity removal measure function is difficult to be realized, and simultaneously, because the existing metal regeneration smelting ingot is conveyed in a long distance, a layer of oxide skin formed on the surface of the casting liquid due to the cooling and oxidation of ambient air when the casting liquid flows through the input runner is brought into a casting mold together, and a large amount of bubbles and residues are carried in the casting liquid, on the other hand, the surface of the ingot is rough, on the other hand, the residues of the casting liquid can form a residue layer similar to bean curd residues on the surface of the ingot, and the temperature change of the metal smelting liquid conveyed in a long distance due to the cooling of the ambient air and the, when the conveying distance is long, secondary heating can be needed.

Disclosure of Invention

The invention aims to provide a secondary aluminum smelting and ingot casting system aiming at the defects in the prior art. The secondary aluminum smelting and ingot casting system is reasonable in structure, the quality of conveying the casting liquid is good, and the ingot casting recovery quality of the secondary aluminum is improved.

The technical scheme of the secondary aluminum smelting ingot casting system comprises an input flow channel and a buffer tank which are connected with a corresponding smelting furnace, wherein a backflow purification pit is arranged between the output end of the input flow channel and the buffer tank, the output port of the backflow purification pit is arranged to protrude from the bottom wall of the backflow purification pit by a certain height and is lower than the bottom surface of the output end of the input flow channel, the furnace door device of the smelting furnace comprises a furnace door action device, and the furnace door action device comprises a safety protection cable connected with a furnace door.

And the output port of the backflow purification pit is arranged on one side deviated from the input side of the backflow purification pit.

The secondary aluminum smelting ingot casting system is reasonable in structure, has relatively better metal smelting liquid conveying and processing functions by a particularly reasonable conveying and processing method, obtains a better processing effect, and can really avoid the influence of entrained bubbles, an oxide layer, residues and related impurities on the quality of ingot casting products; and the influence of the external environment on the temperature of the smelting liquid can be maintained or reduced, so that the quality of the cast ingot is better ensured.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a secondary aluminum smelting ingot system of the present invention; FIG. 2 is a schematic structural diagram of an embodiment of a furnace door of the secondary aluminum smelting ingot casting system of the invention; FIG. 3 is a schematic structural view of a refractory pouring layer of a mesh-type framework at the lower layer of the furnace door in FIG. 2; FIG. 4 is a schematic structural diagram of an embodiment of a furnace door moving device of the secondary aluminum smelting ingot casting system; FIG. 5 is a schematic structural diagram of a pouring device of the secondary aluminum smelting ingot casting system in the embodiment 2; FIG. 6 is a schematic structural diagram of a pouring device in embodiment 3 of the secondary aluminum smelting ingot casting system; FIG. 7 is a schematic view showing the construction of embodiment 4 of the casting apparatus; FIG. 8 is a schematic structural view of an embodiment 5 of a conventional casting apparatus; fig. 9 is a schematic structural view of an embodiment 6 of the conventional casting device.

Detailed Description

In order to further understand the technical solution of the present invention, the following embodiments are further illustrated with reference to the accompanying drawings. As shown in fig. 1 to 4, the secondary aluminum smelting and ingot casting system comprises an inclined input runner 1, a buffer tank 2 and the like which are connected with a flow inlet (a molten metal outlet) of a corresponding smelting furnace. The bottom wall of the furnace chamber of the smelting furnace is provided with an inclined wall surface from a soup flowing port and/or a slag removing port to the wall surface of the furnace bottom.

A plurality of turbulent flow purification pits 3a are respectively arranged on the bottom wall of the input flow channel 1 at intervals along the length direction of the input flow channel, a backflow purification pit 5 connected to an output end port of the input flow channel is arranged at the output end of the input flow channel 1, and the buffer groove 2 is connected to an output port 11 of the backflow purification pit 5. The cross section of the input flow channel is rectangular or inverted isosceles trapezoid with smaller gradient, and the depth of the input flow channel is 3-5 times of the width of the bottom surface. The input flow channel is arranged in a large depth-to-width ratio, namely the input flow channel is narrower and deeper, and a good heat preservation effect can be obtained. Energy consumption is saved.

The outflow side of the corresponding disturbed flow purification pit of the input flow channel is connected with a self-cleaning ceramic filter screen plate 4a inclined towards the inflow side. The setting quantity of the self-cleaning ceramic filter screen plates 4a can be set according to the quality of the smelting liquid (fluid) and the requirement of purification degree.

The backflow purification pit 5 and the disturbed flow purification pit 3a are respectively inclined downwards along the flow direction of the input flow channel and along the flow direction of the reverse input flow channel on the bottom wall surface, and the disturbed flow purification pit is a quadrilateral disturbed flow purification pit inclined on the bottom edge of the disturbed flow purification pit in the side wall surface direction of the input flow channel.

The middle part of the bottom wall surface of the backflow purification pit 5 is arranged at a position which is inclined to the input side and protrudes upwards for a certain height, and the output port 11 of the backflow purification pit is arranged at the protruding part of the bottom wall surface of the backflow purification pit, which protrudes for a certain height; namely, the outlet 11 of the return purification pit is positioned near the input side of the return purification pit and higher than the bottom wall of the return purification pit, and the peripheral wall of the outlet of the return purification pit protrudes to form a neck 12 of the inlet of the buffer tank 2 a. The output port of the backflow purification pit is lower than the bottom wall surface of the output end of the input flow channel. The output port of the backflow purification pit is positioned close to the input side of the backflow purification pit so as to prolong the backflow flow channel, and a better purification effect can be obtained under the condition of a certain conveying device.

And a pouring port for conveying the cast ingot to the pouring gate is formed at the bottom of the buffer tank 2, and the pouring port is provided with a corresponding conical control valve 13. And a ceramic filter screen plate 4b is arranged at an input port (an output port of the reflux purification pit 5) of the buffer tank. The ceramic filter screen plate is provided with a transition hole 17 corresponding to the valve rod of the corresponding control valve. And a valve rod of the control valve passes through the ceramic filter screen plate through the transition hole and reaches the upper part of the backflow purification pit. The spool of the conical control valve 13 is conical. The lowest point of the corresponding side of the backflow purification pit is provided with a slag discharge hole.

The backflow purification pit 5 and the turbulent purification pit 3a respectively have very good functions and effects of removing bubbles, air and sediments in liquid, preventing the surface of the liquid from being oxidized and the like. The purification effect is particularly good.

According to the secondary aluminum smelting ingot casting system, the conveying and purifying modes of the turbulent flow purification pit and the backflow purification pit are respectively arranged at the main input section and the output end of the input flow channel, so that when a fluid flows through the turbulent flow purification pit, residue and impurities can be settled, exhaust gas can be exhausted and the like for purification; meanwhile, when the fluid flows to the output end of the input flow channel to touch the side wall of the cut-off side of the backflow purification pit, the fluid flows from bottom to top in a corresponding flowing characteristic, residues, impurities and the like are retained at the bottom of the backflow purification pit in the backflow conveying process, bubbles in the fluid are released, the purified fluid is conveyed to the buffer tank, and then the fluid is filtered and purified by the ceramic filter screen plate and is conveyed to a cast ingot through the control valve.

The disturbed flow purification pit and the disturbed flow purification pit conveying mode can collect residue impurities in liquid and the like in the disturbed flow purification pit, can remove bubbles carried in the liquid, and can effectively prevent the liquid on the surface of the input flow channel from staying in the surface contact air for a long time to be oxidized to form corresponding new impurities. It has excellent conveying and purifying effect. Particularly, the self-cleaning ceramic filter screen plate is connected to the output side of the turbulent flow purification pit, and has the function of automatically cleaning residues in a longitudinal and transverse scouring self-weight falling mode by utilizing an inclined arrangement structure and combining the fluid backflow characteristic in the filtering process, so that a good purification effect can be obtained.

The furnace door device of the smelting furnace of the system comprises a furnace door 21 arranged at a corresponding furnace opening of the smelting furnace 20 and a furnace door action device, wherein the furnace door comprises an outer frame edge 25, a mesh type framework refractory material pouring layer 22 and a full refractory material pouring layer 24 which are respectively connected in the outer frame edge. The mesh-type framework refractory material pouring layer 22 is composed of a mesh-type framework 23 and a refractory material pouring part 22 poured in meshes of the mesh framework, and the all-refractory material pouring layer 24 is composed of a refractory material pouring body.

The outer frame edge 25 and the mesh-type framework 23 are cast into a whole by stainless steel, and the refractory material casting part of the mesh-type framework refractory material casting layer and the full refractory material casting layer are cast into a whole by corresponding refractory materials.

When the smelting furnace is manufactured, the outer frame edge and the mesh type framework are cast into a whole by stainless steel through a mould with a corresponding shape, and then the cast integrated outer frame edge and the mesh type framework are used as mould frames and/or the framework is cast by corresponding refractory materials to form the smelting furnace. The refractory material is a film stone material. The thickness of the mesh type framework refractory material pouring layer and the thickness of the mesh type framework thereof are the same as that of the full refractory material pouring layer.

The furnace door action device comprises a lifting cable connected between the furnace door 21 and a furnace door driver. The furnace door lifting cable comprises a chain 27 connected with the driver and a steel bar or a steel bar plate 26 which is arranged in the furnace mouth area of the smelting furnace and is positioned between the side, close to the furnace door, of a chain wheel of the driver and the furnace door when the full stroke of the furnace door is met (under the condition) and is connected with the furnace door and the chain 27. That is, the part of the hoist cable at the furnace door end of the melting furnace, which is not in driving connection with the chain wheel of the driver during operation, is made of steel bars or steel bar plates.

The drive comprises a drive motor or hydraulic motor 29, a sprocket shaft 34 in driving connection with the drive motor or hydraulic motor and provided with corresponding sprockets at opposite ends, respectively, and a corresponding retractor. The driving motor or hydraulic motor 29 and the chain wheel shaft 34 are arranged above the furnace door or the top of the smelting furnace.

One end of each of the two chains is connected to one end of each of the two corresponding steel bars or steel bar plates 26, and the other end of each of the steel bars or steel bar plates 26 is connected to the oven door through a corresponding connecting ring. The other ends of the two chains are respectively connected with a tractor, which comprises a guide roller shaft 33 and a gravity weight body (or gravity hammer) 31 respectively connected with the other ends of the two chains. The chain wheel shaft 34 is arranged at one side of the tractor close to the oven door, and the chain is pulled by the tractor after being in transmission connection through the chain wheel.

A safety protection cable 28 is also connected between the oven door and the oven door driver, and the safety protection cable is a steel wire rope with one end connected to the oven door through a connecting ring 32 and the other end connected to a chain wheel shaft of the oven door driver.

The corresponding side of the furnace door is filled with a diamond framework structure and refractory materials, the other side of the furnace door is in a scientific and reasonable special structural shape of full refractory materials, the furnace door has high strength and special high temperature resistance and high strength, and the mesh shape of the mesh type framework refractory material pouring layer is diamond, so that better stability of the framework structure can be obtained, and the mechanical strength of the furnace door can be further improved.

And the part (corresponding section) connected with the furnace door by using the lifting rope, positioned in the area at one side of the furnace opening of the smelting furnace, positioned below the chain wheel of the driver and between the furnace door in the full stroke of the completely opened and lifted furnace door, is formed by a steel bar or a steel bar plate. The structure mode of reducing or not having the activity hinge joint, it can avoid or reduce because of the influence to reliability, security and life etc. of the halyard of the furnace door port regional relative operation is comparatively frequent, the temperature is higher relatively, and for the all activity hinge joint connection structure of the existing chain etc., it does not have the connection reliability problem that the activity connection structure and activity connection mode are very easy to appear, not only have fine high temperature resistance, still have stronger mechanism intensity, and the tolerance of frequent operation application of force, it can improve its life and safe and reliable of whole halyard of by a wide margin.