阅读说明：本技术 一种再生铝加工处理生产系统及方法 (Secondary aluminum processing production system and method ) 是由 朱振平 卢彪 周振武 于 2021-07-29 设计创作，主要内容包括：本发明提供一种再生铝加工处理生产系统,包括：上料机构,用于将再生铝原料从低位运送至位于第一炉体；第一炉体,用于对再生铝原料预热、表面脱漆、脱膜、熔化处理,得到铝溶液；第二炉体,用于对铝溶液静置、过滤处理,除去铝溶液中的杂质,得到合格的铝溶液；第三炉体,用于对经过除杂的铝溶液进行精炼和调配,获得配比检验合格的铝溶液；成型机构,用于将铝溶液定型成铝锭,并运送至堆垛机；堆垛机,用于将铝锭进行运送、堆垛处理。本发明还提供一种再生铝加工处理生产方法。本发明构设计合理,生产效率高,保障铝合金品质,并能够降低生产成本和控制废物排放。(The invention provides a processing and production system for secondary aluminum, which comprises: the feeding mechanism is used for conveying the secondary aluminum raw material to a first furnace body from a low position; the first furnace body is used for carrying out preheating, surface paint removal, stripping and melting treatment on a secondary aluminum raw material to obtain an aluminum solution; the second furnace body is used for standing and filtering the aluminum solution to remove impurities in the aluminum solution and obtain qualified aluminum solution; the third furnace body is used for refining and blending the aluminum solution subjected to impurity removal to obtain the aluminum solution with qualified ratio inspection; the forming mechanism is used for forming the aluminum solution into aluminum ingots and conveying the aluminum ingots to a stacker; and the stacker is used for conveying and stacking the aluminum ingots. The invention also provides a processing and production method of the secondary aluminum. The invention has reasonable design and high production efficiency, ensures the quality of the aluminum alloy, and can reduce the production cost and control the waste discharge.)

1. A secondary aluminum processing production system, comprising:

the feeding mechanism is used for conveying the secondary aluminum raw material to a feeding hole positioned at the top of the first furnace body from a low position;

the first furnace body is arranged on one side of the feeding mechanism and is used for preheating, surface depainting, demoulding and melting a secondary aluminum raw material to obtain an aluminum solution;

the second furnace body is arranged on one side of the first furnace body, the mounting ground of the second furnace body is lower than that of the first furnace body, and the second furnace body is used for standing and filtering the aluminum solution to remove impurities in the aluminum solution and obtain qualified aluminum solution;

the third furnace body is arranged on one side of the second furnace body, the mounting ground of the third furnace body is lower than that of the second furnace body, and the third furnace body is used for refining and blending the aluminum solution subjected to impurity removal to obtain the aluminum solution with qualified ratio inspection;

the forming mechanism is arranged on one side of the third furnace body and used for forming the aluminum solution into aluminum ingots and conveying the aluminum ingots to the stacking machine;

and the stacker is arranged on one side of the forming mechanism and is used for conveying and stacking the aluminum ingots.

2. A secondary aluminum processing production system according to claim 1, wherein said first furnace body includes a heating chamber and a charging chamber; the heating chamber is communicated with the feeding chamber through two groups of circulation channels; a feeding hole is formed in the top of the feeding chamber; the heating chamber, the feeding chamber, the second furnace body and the third furnace body are all provided with a burner, a combustion-supporting pipe, a heat exchanger and a smoke exhaust pipe; the combustion-supporting pipe and the smoke exhaust pipe are respectively connected with the heat exchanger; a filter layer is arranged inside the second furnace body; and electromagnetic stirrers with adjustable heights are arranged at the bottoms of the third furnace body and the circulation channel.

3. A secondary aluminum processing production system according to claim 2, wherein the first furnace body, the second furnace body and the third furnace body each comprise a furnace upper wall, a furnace lower wall, a furnace bottom and a furnace top; a temperature sensor, a burner, a combustion-supporting pipe, a heat exchanger and a smoke exhaust pipe are arranged on the upper wall of the furnace; the furnace lower wall is provided with a furnace door, a liquid outlet pipe and a liquid inlet pipe; the upper wall of the furnace is sequentially provided with an upper wall medium pouring layer and an upper wall light heat insulation pouring layer from inside to outside; an air flue mounting port for mounting a smoke exhaust pipe and a combustion-supporting pipe and a burner mounting port for mounting a burner are formed in the upper wall of the furnace; the lower wall of the furnace is sequentially provided with a lower wall aluminum erosion resistant pouring layer, a lower wall impermeable layer pouring layer and a lower wall light heat insulation pouring layer from inside to outside; a liquid inlet and a liquid outlet are formed in the lower wall of the furnace; the furnace bottom is sequentially provided with a furnace bottom aluminum erosion resistant pouring layer, a furnace bottom impermeable layer pouring layer and a furnace bottom light heat insulation pouring layer from inside to outside; the furnace top is sequentially provided with a furnace top medium castable layer and a furnace top light heat insulation castable layer from inside to outside.

4. The secondary aluminum processing production system according to claim 1, further comprising a dust removal system, wherein the dust removal system comprises a dust hood and a smoke exhaust pipe arranged on the first furnace body, the second furnace body and the third furnace body; the dust hood is arranged on the furnace door; the smoke exhaust pipe is arranged on the furnace body.

5. A secondary aluminium processing production system according to claim 4, wherein the hood includes a collection zone, a circulation zone, a fume collection zone and a main flue pipe; the upper part of the collecting area is connected with a circulating area; the smoke collecting area is connected above the circulating area; a main smoke pipe is connected above the smoke collecting area; and a smoke exhaust fan is arranged in the main smoke pipe.

6. The secondary aluminum processing production system of claim 1, further comprising a feeding mechanism for receiving, storing, preheating, and transporting a secondary aluminum feedstock, the feeding mechanism comprising a feed tube; one end of the feeding pipe is connected with the feeding mechanism, and the other end of the feeding pipe is provided with a feeding pipe; the feeding pipe is connected with a feeding hole of the first furnace body; the inside of the feeding pipe is provided with a helical blade.

7. The recycled aluminum processing and producing system of claim 1, wherein the feeding mechanism comprises a bottom plate and a fixing frame arranged at the upper end of the bottom plate, a fixing plate is arranged at the center of the fixing frame, guide grooves are symmetrically arranged at two sides of the inner wall of the fixing frame, guide wheels in rolling connection with the guide grooves are arranged at two sides of the fixing plate, and a transmission assembly for driving the fixing plate to move up and down is arranged on the fixing frame; and a material pouring device is arranged on one side of the fixed plate.

8. A secondary aluminium processing production system according to claim 7, wherein the dumping device comprises a charging box and a cleaning plate arranged in the charging box, a side of the charging box far from the fixed plate is provided with a baffle plate, and the upper end of the baffle plate is rotatably connected with the charging box; the inner walls of two sides of the charging box are symmetrically provided with sliding grooves, two sides of the cleaning plate are respectively provided with a matching block which is in sliding connection with the sliding grooves, the lower ends of two sides of one side, close to the baffle plate, of the cleaning plate are symmetrically provided with first grooves, connecting rods are rotatably connected in the first grooves, the lower end of one side, close to the cleaning plate, of the baffle plate is provided with second grooves corresponding to the two first grooves, and one end, far away from the first grooves, of each connecting rod is rotatably connected in the second grooves; the charging box is provided with a driving assembly for driving the matching block to slide in the sliding groove.

9. A secondary aluminum processing production system according to claim 1, wherein the molding mechanism comprises a transportation device, aluminum ingot molds uniformly arranged on the transportation device, and a cooling device; the installation ground of the cooling device is lower than that of the third furnace body; a portion of the transport device is located within the cooling device.

10. The method for processing and producing the secondary aluminum is characterized by comprising the following steps of:

sorting process of recycled aluminum raw material

The method comprises the following steps of firstly, analyzing and detecting recycled aluminum raw materials in a plant area, directly returning unqualified raw materials to a supplier, sorting the unqualified raw materials, dividing the unqualified raw materials into cast aluminum raw materials and deformed aluminum raw materials according to different components, and respectively storing the cast aluminum raw materials and the deformed aluminum raw materials in different storehouses for later use;

preheating step

Pouring a secondary aluminum raw material into a first furnace body through a feeding mechanism for preheating, surface paint removal, demoulding and melting to obtain an aluminum solution;

or pouring the secondary aluminum raw material into a feeding mechanism through a feeding mechanism, and feeding the secondary aluminum raw material into a first furnace body through the feeding mechanism for preheating, surface paint removal, demoulding and melting to obtain an aluminum solution;

in the step, a first furnace body adopts a double-chamber furnace, the double-chamber furnace comprises a heating chamber and a feeding chamber, the feeding chamber is connected with a feeding structure, the heating chamber is connected with a second furnace body, a circulation channel is arranged between the heating chamber and the feeding chamber, an electromagnetic stirrer is arranged at the bottom of the circulation channel, the electromagnetic stirrer provides flowing power for the aluminum solution, the aluminum solution is stirred, the high-temperature aluminum solution in the heating chamber is brought into the feeding chamber to wash out the solid aluminum material, and the preheating and melting processes are realized;

impurity removal and purification process

The aluminum solution obtained after melting in the first furnace body enters a second furnace body, the aluminum solution is kept still under the heat preservation state, so that iron impurities and the aluminum solution are subjected to solid-liquid separation, and iron impurities which are not melted are filtered out to obtain the aluminum solution without iron elements;

preparation and refining procedure

Feeding the aluminum solution without iron element into a third furnace body, refining and blending the alloy proportion in a heat preservation state, sampling and analyzing, and performing material supplementing fine adjustment if the mixture ratio is unqualified to finally obtain the aluminum solution with qualified mixture ratio;

shaping step

The aluminum solution from the third furnace body flows into a forming die of a forming mechanism, is conveyed to a cooling device through a conveying device, and is cooled and solidified to form an aluminum ingot;

finishing procedure of finished product

Stacking the aluminum ingots together by a stacker, and packaging into a finished product;

environmental protection treatment process

A furnace door of each furnace body is provided with a dust hood, a smoke exhaust pipe is arranged on each furnace body, and smoke dust in the dust hood and the smoke exhaust pipe is exhausted into a dust removal system for environment-friendly treatment.

Technical Field

The invention relates to the field of processing of secondary aluminum, in particular to a processing and production system and method for secondary aluminum.

Background

The recycled aluminum alloy waste has large yield at home and abroad and needs to be recycled. At present, the recycling technology of the regenerated aluminum alloy is relatively immature, the traditional recycling of the aluminum alloy waste has a plurality of defects in the aspects of crushing, sorting, dust removal, waste environment protection and the production efficiency of the whole process, so that the utilization rate of the aluminum alloy waste is low, the purity of the produced product is not up to standard, the product cannot be supplied to the production and use of high-end products, and a large amount of waste gas and waste dust can be generated to cause atmospheric pollution; due to the fact that the whole process is not coordinated, intermittent work exists in the whole production process, continuous and uninterrupted operation cannot be achieved, production efficiency is low, production cost is high, and further exploration and development of the whole process are not facilitated.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a processing and production system and a processing and production method for secondary aluminum, which have the advantages of reasonable structural design, high production efficiency, guarantee of the quality of aluminum alloy, reduction of production cost and control of waste discharge.

The technical scheme of the invention is as follows:

a secondary aluminum processing production system comprising:

the feeding mechanism is used for conveying the secondary aluminum raw material to a feeding hole positioned at the top of the first furnace body from a low position;

the first furnace body is arranged on one side of the feeding mechanism and is used for preheating, surface depainting, demoulding and melting a secondary aluminum raw material to obtain an aluminum solution;

the second furnace body is arranged on one side of the first furnace body, the mounting ground of the second furnace body is lower than that of the first furnace body, and the second furnace body is used for standing and filtering the aluminum solution to remove impurities in the aluminum solution and obtain qualified aluminum solution;

the third furnace body is arranged on one side of the second furnace body, the mounting ground of the third furnace body is lower than that of the second furnace body, and the third furnace body is used for refining and blending the aluminum solution subjected to impurity removal to obtain the aluminum solution with qualified ratio inspection;

the forming mechanism is arranged on one side of the third furnace body and used for forming the aluminum solution into aluminum ingots and conveying the aluminum ingots to the stacking machine;

and the stacker is arranged on one side of the forming mechanism and is used for conveying and stacking the aluminum ingots.

Preferably, the first furnace body comprises a heating chamber and a feeding chamber; the heating chamber is communicated with the feeding chamber through two groups of circulation channels; a feeding hole is formed in the top of the feeding chamber; the heating chamber, the feeding chamber, the second furnace body and the third furnace body are all provided with a burner, a combustion-supporting pipe, a heat exchanger and a smoke exhaust pipe; the combustion-supporting pipe and the smoke exhaust pipe are respectively connected with the heat exchanger; a filter layer is arranged inside the second furnace body; and electromagnetic stirrers with adjustable heights are arranged at the bottoms of the third furnace body and the circulation channel.

Preferably, the first furnace body, the second furnace body and the third furnace body respectively comprise a furnace upper wall, a furnace lower wall, a furnace bottom and a furnace top; a temperature sensor, a burner, a combustion-supporting pipe, a heat exchanger and a smoke exhaust pipe are arranged on the upper wall of the furnace; the furnace lower wall is provided with a furnace door, a liquid outlet pipe and a liquid inlet pipe; the upper wall of the furnace is sequentially provided with an upper wall medium pouring layer and an upper wall light heat insulation pouring layer from inside to outside; an air flue mounting port for mounting a smoke exhaust pipe and a combustion-supporting pipe and a burner mounting port for mounting a burner are formed in the upper wall of the furnace; the lower wall of the furnace is sequentially provided with a lower wall aluminum erosion resistant pouring layer, a lower wall impermeable layer pouring layer and a lower wall light heat insulation pouring layer from inside to outside; a liquid inlet and a liquid outlet are formed in the lower wall of the furnace; the furnace bottom is sequentially provided with a furnace bottom aluminum erosion resistant pouring layer, a furnace bottom impermeable layer pouring layer and a furnace bottom light heat insulation pouring layer from inside to outside; the furnace top is sequentially provided with a furnace top medium castable layer and a furnace top light heat insulation castable layer from inside to outside.

Preferably, the furnace also comprises a dust removal system, wherein the dust removal system comprises a dust hood and a smoke exhaust pipe which are arranged on the first furnace body, the second furnace body and the third furnace body; the dust hood is arranged on the furnace door; the smoke exhaust pipe is arranged on the furnace body.

Preferably, the dust hood comprises a collecting area, a circulating area, a smoke collecting area and a total smoke pipe; the upper part of the collecting area is connected with a circulating area; the smoke collecting area is connected above the circulating area; a main smoke pipe is connected above the smoke collecting area; and a smoke exhaust fan is arranged in the main smoke pipe.

Preferably, the device also comprises a feeding mechanism for receiving, storing, preheating and conveying the regenerated aluminum raw material, wherein the feeding mechanism comprises a feeding pipe; one end of the feeding pipe is connected with the feeding mechanism, and the other end of the feeding pipe is provided with a feeding pipe; the feeding pipe is connected with a feeding hole of the first furnace body; the inside of the feeding pipe is provided with a helical blade.

Preferably, the feeding mechanism comprises a bottom plate and a fixing frame arranged at the upper end of the bottom plate, a fixing plate is arranged in the center of the fixing frame, guide grooves are symmetrically formed in two sides of the inner wall of the fixing frame, guide wheels in rolling connection with the guide grooves are arranged on two sides of the fixing plate, and a transmission assembly for driving the fixing plate to move up and down is arranged on the fixing frame; and a material pouring device is arranged on one side of the fixed plate.

Preferably, the material pouring device comprises a charging box and a cleaning plate arranged in the charging box, a baffle plate is arranged on one side of the charging box, which is far away from the fixed plate, and the upper end of the baffle plate is rotatably connected with the charging box; the inner walls of two sides of the charging box are symmetrically provided with sliding grooves, two sides of the cleaning plate are respectively provided with a matching block which is in sliding connection with the sliding grooves, the lower ends of two sides of one side, close to the baffle plate, of the cleaning plate are symmetrically provided with first grooves, connecting rods are rotatably connected in the first grooves, the lower end of one side, close to the cleaning plate, of the baffle plate is provided with second grooves corresponding to the two first grooves, and one end, far away from the first grooves, of each connecting rod is rotatably connected in the second grooves; the charging box is provided with a driving assembly for driving the matching block to slide in the sliding groove.

Preferably, the molding mechanism comprises a conveying device, aluminum ingot molds uniformly arranged on the conveying device and a cooling device; the installation ground of the cooling device is lower than that of the third furnace body; a portion of the transport device is located within the cooling device.

A processing and producing method of secondary aluminum comprises the following steps:

sorting process of recycled aluminum raw material

The method comprises the following steps of firstly, analyzing and detecting recycled aluminum raw materials in a plant area, directly returning unqualified raw materials to a supplier, sorting the unqualified raw materials, dividing the unqualified raw materials into cast aluminum raw materials and deformed aluminum raw materials according to different components, and respectively storing the cast aluminum raw materials and the deformed aluminum raw materials in different storehouses for later use;

preheating step

Pouring a secondary aluminum raw material into a first furnace body through a feeding mechanism for preheating, surface paint removal, demoulding and melting to obtain an aluminum solution;

or pouring the secondary aluminum raw material into a feeding mechanism through a feeding mechanism, and feeding the secondary aluminum raw material into a first furnace body through the feeding mechanism for preheating, surface paint removal, demoulding and melting to obtain an aluminum solution;

in the step, a first furnace body adopts a double-chamber furnace, the double-chamber furnace comprises a heating chamber and a feeding chamber, the feeding chamber is connected with a feeding structure, the heating chamber is connected with a second furnace body, a circulation channel is arranged between the heating chamber and the feeding chamber, an electromagnetic stirrer is arranged at the bottom of the circulation channel, the electromagnetic stirrer provides flowing power for the aluminum solution, the aluminum solution is stirred, the high-temperature aluminum solution in the heating chamber is brought into the feeding chamber to wash out the solid aluminum material, and the preheating and melting processes are realized;

impurity removal and purification process

The aluminum solution obtained after melting in the first furnace body enters a second furnace body, the aluminum solution is kept still under the heat preservation state, so that iron impurities and the aluminum solution are subjected to solid-liquid separation, and iron impurities which are not melted are filtered out to obtain the aluminum solution without iron elements;

preparation and refining procedure

Feeding the aluminum solution without iron element into a third furnace body, refining and blending the alloy proportion in a heat preservation state, sampling and analyzing, and performing material supplementing fine adjustment if the mixture ratio is unqualified to finally obtain the aluminum solution with qualified mixture ratio;

shaping step

The aluminum solution from the third furnace body flows into a forming die of a forming mechanism, is conveyed to a cooling device through a conveying device, and is cooled and solidified to form an aluminum ingot;

finishing procedure of finished product

Stacking the aluminum ingots together by a stacker, and packaging into a finished product;

environmental protection treatment process

A furnace door of each furnace body is provided with a dust hood, a smoke exhaust pipe is arranged on each furnace body, and smoke dust in the dust hood and the smoke exhaust pipe is exhausted into a dust removal system for environment-friendly treatment.

The invention has the beneficial effects that:

1. the invention has reasonable integral structure design, obtains the production system and the method of pure aluminum ingots or aluminum alloy ingots by sorting, preheating, purifying, modulating, refining, forming and matched dedusting environment-friendly treatment equipment of the regenerated aluminum raw materials, realizes the recovery, melting and refining of the waste aluminum materials, recycles the obtained aluminum and aluminum alloy, optimizes the melting, purifying and refining equipment and process of the regenerated aluminum raw materials, reduces the production cost and the income, saves energy, reduces the burning loss of the aluminum, reduces the environment-friendly emission of greenhouse gases and toxic gases, improves the quality of the aluminum ingots and the aluminum alloy, and the like.

2. The preheating process of the invention adopts a double-chamber smelting furnace, the charging chamber is used for preheating raw materials, the heating chamber is used for dissolving the raw materials, a flowing power is provided for the aluminum solution by an electromagnetic stirrer, the aluminum solution is stirred, and the high-temperature aluminum solution in the heating chamber is brought into the charging chamber to wash out solid aluminum materials, thereby realizing the submerged low-burning-loss melting, improving the production efficiency and the smelting effect, and greatly reducing the energy consumption compared with the existing smelting mode.

3. The invention is provided with the dust removal system, so that the environment-friendly treatment can be carried out on the smoke generated by the combustion of the furnace body, and the heat and the smoke overflowing from the furnace door can be extracted, thereby reducing the temperature of an operation area, protecting the surrounding environment and ensuring the safety and health of workers.

4. The feeding device provided by the invention pushes the raw materials in the charging box outwards through the cleaning plate in the charging process, so that the raw materials are prevented from being adhered and remained in the hopper, the use is convenient, and meanwhile, the device is convenient to move and strong in flexibility.

5. The second furnace body adopted in the impurity removal and purification process is convenient to clean, good in filtering effect and good in heat preservation effect, impurities in the aluminum solution can be effectively filtered, the filtering layer can be cleaned by opening the furnace door, the temperature in the furnace can be reasonably adjusted, the aluminum solution can be prevented from being cooled to influence the filtering effect and cause aluminum loss in the standing and filtering process, the temperature of the aluminum solution can be maintained at a specific temperature, other high-melting-point impurity metals are prevented from being liquefied due to overhigh temperature, and therefore the aluminum solution is mixed with the aluminum solution to influence the purity of the aluminum solution.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only a part of the embodiments of the present invention, and modifications without creative efforts made within the scope of the teaching of the inventive concept can be used as other embodiments of the present invention.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a first furnace body according to the present invention;

FIG. 3 is a schematic view of the internal structure of the first furnace body according to the present invention;

FIG. 4 is a top view of the first furnace body of the present invention;

FIG. 5 is a schematic structural view of a second furnace body according to the present invention;

FIG. 6 is a schematic cross-sectional view of a second furnace body according to the present invention;

FIG. 7 is a schematic structural view of a third furnace body according to the present invention;

FIG. 8 is a schematic structural view of a feeding mechanism of the present invention;

FIG. 9 is a schematic structural view of the pouring device of the present invention;

FIG. 10 is a schematic cross-sectional view of the pouring device of the present invention;

FIG. 11 is a schematic structural view of a feeding mechanism of the present invention;

FIG. 12 is a production process diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art.

All directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of each component in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed correspondingly; all technical features, such as "first", "second", or "first", "second", etc., named with a number are used for reference only, without meaning to indicate quantity or importance; all terms "connected" or the like are to be interpreted broadly, e.g., as meaning a mechanical or electrical connection, a direct or indirect connection, a fixed or removable connection, etc., as determined by the actual intent of the solution; the technical features of the embodiments can be freely combined without conflict, as long as a corresponding technical solution for solving the technical problem can be formed.

As shown in fig. 1, a secondary aluminum processing production system includes a feeding mechanism 100, a first furnace 300, a second furnace 400, a third furnace 500, a forming mechanism and a stacker 800: wherein the feeding mechanism 100 is used for conveying the secondary aluminum raw material from a low position to a feeding port 3011 at the top of the first furnace body 300; the first furnace body 300 is arranged on one side of the feeding mechanism 100 and is used for preheating, surface depainting, demoulding and melting a secondary aluminum raw material to obtain an aluminum solution; the second furnace body 400 is arranged at one side of the first furnace body 300, the installation ground of the second furnace body 400 is lower than that of the first furnace body 300, and the second furnace body 400 is used for standing and filtering the aluminum solution to remove impurities in the aluminum solution and obtain qualified aluminum solution; the third furnace body 500 is arranged at one side of the second furnace body 400, the installation ground of the third furnace body 500 is lower than that of the second furnace body 400, and the third furnace body is used for refining and blending the aluminum solution subjected to impurity removal to obtain the aluminum solution with qualified ratio inspection; the forming mechanism is arranged at one side of the third furnace body 500 and is used for forming the aluminum solution into aluminum ingots and conveying the aluminum ingots to the stacker 800; the stacker 800 is disposed at one side of the forming mechanism, and is configured to convey and stack aluminum ingots.

As shown in fig. 2 to 4, in the present embodiment, the first furnace body 300 includes a heating chamber 301, a charging chamber 304, and an electromagnetic stirrer 1; the heating chamber 301 is communicated with the feeding chamber 304 through two groups of circulation channels 303; an electromagnetic stirrer 1 with adjustable height is arranged below the flow channel 303; a feed port 3011 is arranged at the top of the feeding chamber 304; the heating chamber 301 and the feeding chamber 304 are respectively provided with a burner 4, a combustion-supporting pipe 5, a heat exchanger 6 and a smoke exhaust pipe 3; the smoke exhaust pipe 3 and the combustion-supporting pipe 5 are connected with a heat exchanger 6; the heating chamber 301 and the charging chamber 304 are provided with oven doors 302. In the specific operation, the burner 4 is a heat accumulating type combustion system, 1 set of 500 type paired heat accumulating type combustion system is configured in the heating chamber 301, the temperature of the aluminum solution 3012 in the heating chamber 301 can reach 680-720 ℃, 1 set of electromagnetic stirrer 1 is configured at the bottom of the flow passage 303, the high-temperature aluminum solution 3012 in the heating chamber 301 is brought into the charging chamber 304 through the electromagnetic stirrer 1 to flush the solid aluminum material 3013, after the solid aluminum material 3013 is melted, the flowing aluminum solution 3012 enters the heating chamber 304 from the other flow passage 303 to be subjected to heating treatment, and the charging chamber 304 is configured with 1 set of 160 type paired heat accumulating type combustion system, the solid aluminum material is preheated to the temperature of 400-480 ℃ in the heating chamber 301, and the preheating treatment is performed before combustion, so that the energy consumption and the aluminum loss can be effectively reduced. The double-chamber smelting furnace realizes the submerged low-burning-loss smelting, thereby improving the production efficiency and the smelting effect, and greatly reducing the energy consumption compared with the existing smelting mode.

In this embodiment, two sets of burners 4 are disposed on the heating chamber 301 and the feeding chamber 304, and the included angle between the two sets of burners 4 is 50-80 degrees, so that the full combustion of the aluminum material can be realized in the largest range.

In this embodiment, two sets of combustion-supporting tubes 5 are disposed on the heating chamber 301 and the feeding chamber 304, respectively, so as to provide sufficient combustion-supporting gas for sufficient combustion of the aluminum material. In specific implementation, combustion-supporting gas enters the combustion-supporting pipe 5 through the heat exchanger 6, smoke generated in the heating chamber 301 and the charging chamber 304 is discharged from the smoke exhaust pipe 3, the discharged high-temperature smoke also passes through the heat exchanger 6, the combustion-supporting gas and the high-temperature smoke preheat the combustion-supporting gas in a heat exchange mode, and the preheated combustion-supporting gas enters the combustion-supporting pipe 5, so that high-temperature combustion-supporting air is provided for the heating chamber 301 and the charging chamber 304, and further energy is greatly saved.

As shown in fig. 5 and 6, the second furnace body 400 includes a furnace body 401, and the furnace body 401 includes a furnace upper wall 4011, a furnace lower wall 4012, a furnace bottom 4013, and a furnace top 4014; the upper furnace wall 4011 is provided with a temperature sensor, a burner 4, a smoke exhaust pipe 3 and a combustion-supporting pipe 5; the furnace lower wall 4012 is provided with a furnace door 402, a liquid outlet pipe and a liquid inlet pipe; a filter layer 4019 is arranged in the furnace lower wall 4012; the liquid inlet pipe is positioned above the filter layer 4019, and the liquid outlet pipe is positioned below the filter layer 4019; the lower surface of the hearth 4013 is inclined in the direction of the outlet of the aluminum solution. In specific operation, the aluminum solution that melts out from first furnace body 300 contains a large amount of impurity metals of different volumes, as shown in fig. 6 large volume impurity 409 and small volume impurity 4010, no matter which density impurity metal, all can be kept apart in the top of aluminum solution export by filter layer 4019, for the whole outflow of aluminum solution, stove bottom 4013 surface is the slope setting towards aluminum solution export direction, further makes things convenient for the outflow of aluminum solution, avoids remaining aluminum solution in the stove, reduces the aluminium loss, reduce cost.

In the concrete operation, the aluminum solution melted from the first furnace body 300 enters the second furnace body 400 through the liquid inlet pipe to start the standing and filtering process, the temperature in the furnace can be grasped through the temperature sensor, and the storage environment of the aluminum solution is adjusted in time: in order to prevent the aluminum solution from being poor in fluidity due to temperature reduction in the standing and filtering process, so that the filtering effect is influenced and the aluminum loss is caused, the burner 4, the smoke exhaust pipe 3 and the combustion-supporting pipe 5 can be opened, and the aluminum solution is heated to maintain the liquid state; or preventing the impurity metal from being melted by overhigh temperature in the furnace, closing the burner 4, increasing the smoke exhaust speed of the smoke exhaust pipe 3 and the gas feeding speed of the combustion-supporting pipe 5, thereby improving the overall heat exhaust speed, reducing the temperature in the furnace, and maintaining the temperature in the furnace at the temperature required by the aluminum solution but lower than the melting point temperature of the impurity metal.

After the aluminum solution enters the furnace body through the liquid inlet 4017, the temperature in the furnace body is adjusted at any time through the temperature sensor, so that the aluminum solution is kept stand and treated, in the process of keeping stand, high-density large-volume impurities 409 can be precipitated on the filtering layer 4019, low-density small-volume impurities 4010 float on the surface of the aluminum solution, then the liquid outlet pipe is opened, and the aluminum solution enters the liquid outlet 4018 along the furnace bottom 4013 and flows to the third furnace body 500.

In order to ensure the heat preservation effect of the furnace body, a furnace upper wall 4011 which is not in contact with the aluminum solution is sequentially provided with an upper wall medium pouring layer 40111 and an upper wall light heat insulation pouring layer 40112 from inside to outside; an air flue mounting port 4015 for mounting the smoke exhaust pipe 3 and the combustion-supporting pipe 5 and a burner mounting port 4016 for mounting the burner 4 are arranged on the furnace upper wall 4011. A furnace top 4014 which is not in contact with the aluminum solution is sequentially provided with a furnace top medium castable layer 40142 and a furnace top light heat insulation castable layer 40141 from inside to outside.

Referring to fig. 6, in this embodiment, the air passage installation port 4015 is composed of a heat preservation casting layer 40151, which has a good heat preservation effect, and the smoke exhaust pipe 3 and the combustion-supporting pipe 5 are installed on the air passage installation port 4015, which can effectively block the leakage of smoke heat; the burner mounting port 4016 is composed of a self-flowing high-strength pouring layer 40161, has good heat resistance and heat insulation effects, and the burner of the combustion-supporting pipe 5 is mounted on the burner mounting port 4016, so that the strength of the structure of the furnace body is guaranteed.

The part of the furnace body contacting with the aluminum solution not only needs to meet the heat preservation effect, but also ensures that the furnace body has the characteristic of high temperature resistance, so that the strength of the structure of the furnace body can be ensured, and therefore, a furnace lower wall 4012 contacting with the aluminum solution is sequentially provided with a lower wall aluminum erosion resistant pouring layer 40121, a lower wall impermeable layer pouring layer 40122 and a lower wall light heat insulation pouring layer 40123 from inside to outside; the furnace lower wall 4012 is provided with a liquid inlet 4017 and a liquid outlet 4018. Inlet 4017 and outlet 4018 are comprised of a cast layer resistant to aluminum erosion. The hearth 4013 is provided with a hearth aluminum erosion resistant casting layer 40131, a hearth impervious layer casting layer 40132 and a hearth light heat insulation casting layer 40133 in sequence from inside to outside. These structural design have not only satisfied the heat preservation effect, still have high temperature resistance characteristic, can guarantee self structural strength. The wall structure of the first and third furnaces 300 and 500 is the same as that of the second furnace 400, and thus the description thereof will not be repeated.

The aluminum solution that melts out from first furnace body 300 enters into second furnace body 400 through the feed liquor pipe and begins the filtration process that stews, can master the temperature in the stove through temperature sensor, in time adjusts the storage environment of aluminum solution: in order to prevent the aluminum solution from being poor in fluidity due to temperature reduction in the standing and filtering process, so that the filtering effect is influenced and the aluminum loss is caused, the burner 4, the smoke exhaust pipe 3 and the combustion-supporting pipe 5 can be opened, and the aluminum solution is heated to maintain the liquid state; or the impurity metal is prevented from being melted by overhigh temperature in the furnace, the burner 4 is closed, the smoke exhaust speed of the smoke exhaust pipe 3 and the gas supply speed of the combustion-supporting pipe 5 can be increased, and therefore the integral heat exhaust speed is increased, the temperature in the furnace is reduced, and the temperature in the furnace is maintained at the temperature required by the aluminum solution and lower than the melting point temperature of the impurity metal.

After the aluminum solution enters the furnace body 401 through the liquid inlet 4017, the temperature in the furnace body 401 is adjusted at any time through the temperature sensor, so that the aluminum solution is kept stand and treated, in the process of keeping stand, high-density large-volume impurities 409 can be precipitated on the filter layer 4019, low-density small-volume impurities 4010 float on the surface of the aluminum solution, then the liquid outlet pipe is opened, and the aluminum solution enters the liquid outlet 4018 along the furnace bottom 4013 and flows to the next processing device.

As shown in fig. 7, the third furnace body 500 comprises a furnace body 501, a burner 4, a smoke exhaust pipe 3 and a combustion-supporting pipe 5 are arranged on the furnace body 501, and the smoke exhaust pipe 3 and the combustion-supporting pipe 5 are connected with a heat exchanger 6; the electromagnetic stirrer 1 with adjustable height is arranged below the furnace body 501.

In the specific implementation, the combustion-supporting gas in the combustion-supporting pipes 5 of the first furnace body 300, the second furnace body 400 and the third furnace body 500 firstly passes through the heat exchanger 6, the flue gas generated in the furnace bodies is discharged from the smoke exhaust pipe 3, the discharged high-temperature flue gas also passes through the heat exchanger 6, the combustion-supporting gas and the high-temperature flue gas preheat the combustion-supporting gas in a heat exchange mode, and the preheated combustion-supporting gas enters the combustion-supporting pipes 5, so that high-temperature combustion-supporting air is provided for the furnace bodies, and further energy is greatly saved.

In specific implementation, the installation ground of the first furnace body 300 and the third furnace body 500 provided with the electromagnetic stirrer 1 is provided with a first groove 22, a concrete layer 23 is arranged in the first groove 22, the height of the upper end surface of the concrete layer 23 is lower than that of the upper end surface of the ground 21, a furnace body 501 positioned at the upper end of the concrete layer 23 is arranged in the first groove 22, refractory bricks 25 are paved on the upper end of the ground 21 and the inner wall of the first groove 22, a second groove 24 is arranged on the concrete layer 23, a telescopic device 12 is arranged in the second groove 24, and the bottom of the electromagnetic stirrer 1 is connected with the telescopic device 12, wherein the concrete layer 23 improves the stability of the foundation structure of the furnace body 501, and meanwhile, the heat-resisting effect of the foundation structure is improved through the refractory bricks 25. The electromagnetic stirrer 1 has scalability, and the telescoping device 12 arranged at the bottom can also be used for adjusting the height of the electromagnetic stirrer 1, so that the adjustment of the distance between the electromagnetic stirrer 1 and the furnace body 501 is facilitated, and the use is facilitated.

As shown in fig. 1, 5 and 7, in the present embodiment, the first furnace body 300, the second furnace body 400 and the third furnace body 500 are all provided with a dust removing system 900, the dust removing system 900 includes a dust hood 901 and a smoke exhaust pipe 3 which are arranged on the first furnace body 300, the second furnace body 400 and the third furnace body 500, wherein the dust hood 901 is arranged on the furnace door; the smoke exhaust pipe 3 is arranged on the furnace body. In a specific operation, the dust hood 901 includes a collection area 9011, a circulation area 9012, a smoke collection area 9013 and a main smoke pipe 9014; the upper part of the collecting region 9011 is connected with a circulating region 9012; a smoke collection area 9013 is connected above the circulation area 9012; a main smoke pipe 9014 is connected above the smoke collection area 9013; a smoke exhaust fan is arranged in the main smoke pipe 9014.

As shown in fig. 1, the system further comprises a feeding mechanism 200 for receiving, storing, preheating and conveying the regenerated aluminum raw material, wherein the feeding mechanism 200 comprises a feeding pipe 201; one end of the feeding pipe 201 is connected with the feeding mechanism 100, and the other end of the feeding pipe 201 is provided with a feeding pipe 203; the feeding pipe 203 is connected with the feeding hole of the first furnace body 300; the feeding pipe 201 is internally provided with a helical blade 202, and in a specific operation, the helical blade 202 is controlled to rotate by an external motor, so that raw materials entering the feeding pipe 201 are conveyed to a feeding pipe 203 and then enter a first furnace body 300 for preheating and smelting treatment.

As shown in fig. 8-10, in this embodiment, the feeding mechanism 100 includes a bottom plate 104 and a fixing frame 101 disposed at the upper end of the bottom plate 104, a fixing plate 106 is disposed at the center of the fixing frame 101, guide grooves 102 are symmetrically disposed at two sides of the inner wall of the fixing frame 101, guide wheels 103 rolling-connected with the guide grooves 102 are disposed at two sides of the fixing plate 106, and a transmission assembly for driving the fixing plate 106 to move up and down is disposed on the fixing frame 101; a material pouring device 108 is arranged on one side of the fixing plate 106. In the specific operation, the transmission assembly includes a first lead screw 105 disposed on the fixing frame 101, an upper end of the first lead screw 105 is rotatably connected to the fixing frame 101, a lower end of the first lead screw 105 is rotatably connected to the bottom plate 104, an upper end of the first lead screw 105 is fixedly connected to an output end of a first motor 107 disposed on the fixing frame 101, the first lead screw 105 is in threaded connection with the fixing plate 106, so that the first lead screw 105 is driven by the first motor 107 to rotate, and the fixing plate 106 is driven by the first lead screw 105 to move up and down through the threaded connection with the fixing plate 106.

The material pouring device 108 comprises a charging box 1081 and a cleaning plate 1084 arranged in the charging box 1081, a baffle 1082 is arranged on one side of the charging box 1081 far away from the fixed plate 106, and the upper end of the baffle 1082 is rotatably connected with the charging box 1081; charging box 1081's both sides inner wall symmetry is equipped with spout 1085, clearance plate 1084's both sides all are equipped with the cooperation piece 1086 with spout 1085 sliding connection, clearance plate 1084 is close to the both sides lower extreme symmetry of baffle 1082 one side and is equipped with first recess 1089, all rotate in the first recess 1089 and be connected with connecting rod 1083, baffle 1082 is close to one side lower extreme of clearance plate 1084 and is equipped with the second recess 10810 corresponding with two first recesses 1089, the one end that connecting rod 1083 kept away from first recess 1089 all rotates and connects in second recess 10810; the charging box 1081 is provided with a driving assembly for driving the matching block 1086 to slide in the sliding groove 1085. In the specific operation, the driving assembly comprises a second screw rod 1087 rotatably connected in one of the sliding grooves 1085, the second screw rod 1087 is in threaded connection with the matching block 1086, and the end of the second screw rod 1087 is fixedly connected with the output end of a second motor 1088 arranged on the charging box 1081, so that when raw materials need to be put into the first furnace body 300, the second screw rod 1087 can be driven by the second motor 1088 to rotate, the second screw rod 1087 can drive the cleaning plate 1084 to move towards the baffle 1082 by virtue of the threaded connection with the matching block 1086, so that the cleaning plate 1084 can drive the connecting rod 1083 to move in the moving process, the connecting rod 1083 can drive the baffle 1082 to move, and meanwhile, by virtue of the limiting effect that the upper end of the baffle 1082 is rotatably connected with the charging box 1081, the connecting rod 1083 can drive the baffle 1082 to rotate upwards, so that the cleaning plate 1084 can drive the baffle 1082 to spread while moving, so as to push the raw materials in the charging box 1081 outwards by virtue of the cleaning plate 1084 to load the raw materials, the raw material is prevented from adhering and remaining in the charging box 1081.

As shown in fig. 11, during the loading process, the raw material is first put into the charging box 1081, and then the charging box 1081 is driven to move upwards by the driving action of the first motor 107 and the first screw 105, when the bottom plate of the charging box 1081 abuts against the feeding hopper of the feeding pipe 201, then the second motor 1088 drives the second screw rod 1087 to rotate, the second screw rod 1087 pushes the cleaning plate 1084 to move outwards, meanwhile, the cleaning plate 1084 pushes the baffle 1082 to rotate upwards through the connecting rod 1083, this allows the material to be discharged from the hopper 1081, into the feed hopper, then into the feed pipe 201, meanwhile, the cleaning plate 1084 pushes the raw material in the charging box 1081 outwards, so that the raw material is prevented from being adhered and remaining in the charging box 1081, then, the first motor 107 and the second motor 1088 are reversed to drive the cleaning plate 1084 and the baffle 1082 to reset to seal the charging box 1081, and the charging box 1081 is moved downwards, so that the charging of the raw materials can be completed again.

Preferably, the forming mechanism comprises a conveying device 600, aluminum ingot molds uniformly arranged on the conveying device, and a cooling device 700; the installation ground of the cooling device 700 is lower than that of the third furnace body 500; a portion of the transport apparatus 600 is located within the cooling apparatus 700. In the specific operation, cooling water is filled in the cooling device 700, the conveying device can be in chain transmission or belt transmission, the aluminum ingot mold is driven by the conveying device to be conveyed to the position below the liquid level of the cooling device 700 for cooling, the aluminum solution discharged from the cooling device 700 is cooled and shaped into aluminum ingots, then the aluminum ingots are conveyed to the stacker 800 by the conveying device, and the stacker 800 puts the aluminum ingots into a neat package through a mechanical arm.

A processing and producing method of secondary aluminum comprises the following steps:

(1) sorting process of recycled aluminum raw material

The method comprises the following steps of firstly analyzing and detecting recycled aluminum raw materials in a factory, directly returning unqualified raw materials to a supplier, sorting the unqualified raw materials, dividing the unqualified raw materials into cast aluminum raw materials and deformed aluminum raw materials according to different components, and respectively storing the cast aluminum raw materials and the deformed aluminum raw materials in different storehouses for later use.

(2) Preheating step

Pouring a secondary aluminum raw material into a first furnace body through a feeding mechanism for preheating, surface paint removal, demoulding and melting to obtain an aluminum solution;

in the step, the first furnace body adopts a double-chamber furnace, the double-chamber furnace comprises a heating chamber 301 and a feeding chamber 304, the feeding chamber 304 is connected with the feeding structure, the heating chamber 301 is connected with the second furnace body, a circulation channel 303 is arranged between the heating chamber 301 and the feeding chamber 304, an electromagnetic stirrer 1 is arranged at the bottom of the circulation channel 303, the electromagnetic stirrer 1 provides flowing power for the aluminum solution, the aluminum solution is stirred, the high-temperature aluminum solution in the heating chamber 301 is brought into the feeding chamber 304 to wash out the solid aluminum material, and the preheating and melting processes are realized;

(3) impurity removal and purification process

The aluminum solution obtained after melting in the first furnace body enters a second furnace body, the aluminum solution is kept still under the heat preservation state, so that iron impurities and the aluminum solution are subjected to solid-liquid separation, and iron impurities which are not melted are filtered out to obtain the aluminum solution without iron elements;

(4) preparation and refining procedure

Feeding the aluminum solution without iron element into a third furnace body, refining and blending the alloy proportion in a heat preservation state, sampling and analyzing, and performing material supplementing fine adjustment if the mixture ratio is unqualified to finally obtain the aluminum solution with qualified mixture ratio;

(5) shaping step

The aluminum solution from the third furnace body flows into a forming die of a forming mechanism, is conveyed to a cooling device through a conveying device, and is cooled and solidified to form an aluminum ingot;

(6) finishing procedure of finished product

Stacking the aluminum ingots together by a stacker, and packaging into a finished product;

(7) environmental protection treatment process

A furnace door of each furnace body is provided with a dust hood, a smoke exhaust pipe is arranged on each furnace body, and smoke dust in the dust hood and the smoke exhaust pipe is exhausted into a dust removal system for environment-friendly treatment.

The parts of the invention not described in detail can be realized by the prior art, and the invention is not limited.

The above examples are only for illustrating the preferred embodiments of the present invention and are not to be construed as limiting the invention, and those skilled in the art can change the embodiments and applications of the present invention according to the spirit of the present invention, and the content of the present description should not be construed as limiting the invention.