CN108588332B

CN108588332B - Deoxidizer production device and process for producing deoxidizer by using same

Info

Publication number: CN108588332B
Application number: CN201810685644.7A
Authority: CN
Inventors: 李圭业
Original assignee: Pkg Co ltd
Current assignee: Pkg Co ltd
Priority date: 2018-06-28
Filing date: 2018-06-28
Publication date: 2020-08-04
Anticipated expiration: 2038-06-28
Also published as: CN108588332A

Abstract

The invention relates to a deoxidizer production device and a process for producing deoxidizer by using the same. The deoxidizer production device comprises a crushing module for crushing the aluminum raw material; the vibration screening module is used for applying vibration to the raw materials crushed by the crushing module to separate impurities; the feeding adjusting module is used for temporarily storing crushed raw materials conveyed by the vibration screening module and then quantitatively conveying the crushed raw materials by using a conveying belt; the dry distillation rotary furnace module is used for performing dry distillation on the crushed raw materials conveyed by the feeding adjusting module at a set temperature to remove impurities; forming the dry distillation raw material with the impurities removed from the dry distillation rotary furnace module into a bean-shaped or granular particle forming module; the extrusion molding module is used for compressing and molding the particles conveyed by the particle molding module into a shell-shaped molding material; and the sorting module sorts the raw materials conveyed by the extrusion forming module according to weight or size. The invention adopts indirect heating mode, directly compresses and molds the bell-shaped deoxidizer without melting, and reduces the energy consumption for producing the deoxidizer.

Description

Deoxidizer production device and process for producing deoxidizer by using same

Technical Field

The invention relates to a production device of a deoxidizer and a process for producing the deoxidizer by using the device. In particular to a device for producing deoxidizer by an aluminum pot through a dry distillation process and a process for producing the deoxidizer by the device.

Background

Ferroalloys, ferrosilicon and ferromanganese are used as deoxidizing agents for removing oxygen from molten iron or alloys, while aluminum deoxidizing agents are well known in the art. The aluminum deoxidizer has the advantages that the oxygen balance can be controlled even with a small amount of aluminum deoxidizer, and the deoxidizer can be manufactured by recycling waste aluminum cans. There are many techniques known in the art. For example, the technique of patent publication No. 10-2010-0024532 describes a method of forming a high-density disk-shaped aluminum deoxidizer from aluminum particles produced from spent aluminum cans and a process for producing the deoxidizer. The technology of patent registration No. 10-1428507 describes a process for producing deoxidizer for steel making from waste aluminum cans and aluminum shavings. In addition, the technology of patent publication No. 10-2004-0110181 describes a process for producing an aluminum deoxidizer by compression molding aluminum dross without casting after refining aluminum or an aluminum alloy. The production process of the deoxidizer explained in the prior art adopts a carbonization combustion process, the impurities are not sufficiently removed, smoke is generated in the production process, and the problems of insufficient forming standard and the like exist in the aspect of practicability.

Disclosure of Invention

The invention aims to provide a production device for deoxidizing agent and a process for producing deoxidizing agent by using the production device, wherein the production device is used for removing impurities such as coating on raw materials such as waste aluminum cans by adopting a dry distillation process, forming bean-shaped particles by a crushing process, and then forming the bean-shaped particles into the deoxidizing agent with set size and shape by a compression process.

The invention adopts the technical scheme that: a deoxidizer production device, comprising the following components:

a crushing module for crushing the aluminum raw material;

the vibration screening module is used for applying vibration to the aluminum raw material crushed by the crushing module and separating impurities;

the feeding adjusting module is used for temporarily storing the aluminum raw material which is conveyed by the vibration screening module and is crushed and separated from impurities and then conveying the aluminum raw material quantitatively by a conveying belt;

the dry distillation rotary furnace module is used for carrying out dry distillation on the aluminum raw material which is conveyed by the feeding adjusting module and is crushed and separated from impurities at a set temperature so as to further remove the impurities;

forming the dry distillation raw material with impurities removed by the dry distillation rotary furnace module into a bean-shaped or granular particle forming module;

the bean-shaped or granular raw materials conveyed by the particle forming module are compressed and formed into a shell-shaped extrusion forming module;

and the sorting module sorts the shell-shaped molding materials conveyed by the extrusion molding module according to weight or size.

Further, the deoxidizer production device comprises the following components: the rotary furnace unit is used for carrying out dry distillation on the aluminum raw material which is conveyed by the feeding adjusting module and is crushed and separated from impurities in the aluminum raw material, the burner unit is used for heating air flowing into the rotary furnace unit, and the cyclone separator is connected with the rotary furnace unit and used for collecting dust.

Further, in the deoxidizer production device, the extrusion molding module is composed of a pair of briquetting rollers provided with shell-shaped grooves. And dross or burrs generated during the molding process are collected and transferred to a pellet molding module.

The process for producing the deoxidizer by using the deoxidizer production device and producing the aluminum deoxidizer by using the waste aluminum raw material comprises the following working procedures:

crushing the waste aluminum raw material and separating impurities through a crushing module and a vibration screening module;

putting the crushed waste aluminum raw material with impurities separated into a dry distillation rotary furnace module, and performing dry distillation by using hot air at the temperature of 540-840 ℃ to remove organic matters to obtain a dry distillation aluminum raw material;

forming the aluminum raw material with the organic matters removed by the particle forming module into bean-shaped or granular extrusion forming;

controlling the density of the bean-shaped or granular dry distillation aluminum raw material, and feeding the raw material into a briquetting roller of an extrusion molding module;

a step of forming the beta-aluminum deoxidizer by a pair of briquetting rolls provided with beta-shaped grooves of an extrusion forming module and simultaneously removing slag or burrs generated in the forming process;

detecting the beta-aluminum deoxidizer and sorting.

Further, in the process for producing the deoxidizer, the shellfish-like aluminum deoxidizer has a specific gravity of 1.8-2.2 g/cm³The weight is in the range of 78-82 g.

The beneficial effects of the invention are as follows:

the deoxidizer production device based on the invention adopts an indirect heating mode, Volatile Organic Compounds (VOC) are treated in a furnace, the beta-deoxidizer is directly compressed and formed without melting, and the energy consumption for producing the deoxidizer is reduced. In addition, the combustion process in the furnace for generating carbon dioxide is not adopted, so that carbon dioxide gas does not need to be discharged, and the method belongs to the environment-friendly technology. The production process based on the invention improves the competitiveness by reducing energy consumption, and saves the initial equipment cost and reduces the production cost without using a smelting furnace. In addition, since the compression system is used without using a furnace, the apparatus can be operated intermittently. Also, the specific gravity of the deoxidizer is controlled to 2.0 or more during the compression process, which promotes easier penetration of the deoxidizer into the molten metal.

Drawings

FIG. 1 is an illustration of an embodiment of a deoxidizer producing device according to the present invention.

FIG. 2 is an illustration of an embodiment of a dry distillation process for a deoxidizer producing apparatus according to the present invention.

FIG. 3 is an illustration of an embodiment of the deoxidizer production process based on the invention.

FIG. 4a is an illustration of an embodiment of bean-shaped granules produced by the deoxidizer producing apparatus according to the present invention.

FIG. 4b is an illustration of an embodiment of a shellfish-like deoxidizer produced by the deoxidizer producing apparatus according to the present invention.

Detailed Description

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying examples, which are provided for the purpose of more clearly understanding the present invention, but the present invention is not limited to the embodiment. In the following description, components having the same reference numerals in different drawings have similar functions, and thus, unless necessary for understanding the present invention, they will not be described repeatedly, and known components may be briefly described or omitted, but should not be construed as being excluded from the embodiments of the present invention.

FIG. 1 is an illustration of an embodiment of a deoxidizer producing device according to the present invention. Referring to fig. 1, the apparatus for producing a deoxidizer from aluminum scrap includes the following components: a crushing module (12) for crushing the aluminum raw material, a vibration screening module (13) for applying vibration to the aluminum raw material crushed by the crushing module (12) to separate impurities, and the aluminum raw material which is conveyed by the vibration screening module (13) and is crushed to separate impurities, the device comprises a feeding adjusting module (14) conveyed quantitatively by a conveyor belt, a dry distillation rotary furnace module (15) for performing dry distillation on the aluminum raw material which is conveyed by the feeding adjusting module (14) and is crushed to separate impurities at a set temperature and further removing the impurities, a particle forming module (16) for forming the dry distillation raw material from which the impurities are removed by the dry distillation rotary furnace module (15) into bean-shaped or granular shapes, an extrusion forming module (18) for performing compression forming on the bean-shaped or granular raw material conveyed by the particle forming module (16) into a shell-shaped raw material, and a sorting module (20) for sorting the shell-shaped formed material conveyed by the extrusion forming module (18) according to weight or size.

The waste aluminum raw material comprises waste aluminum sheet packaging blocks such as waste beverage cans or aluminum compression packs with certain sizes. These waste aluminum materials contain a variety of impurities, including organic and inorganic materials, which need to be treated by appropriate processes. The waste aluminum raw materials of the packed blocks or bulk materials are put into a production device (IN) through various feeding modes (a plurality of feeding modes including mechanical or manual feeding), and then are conveyed to a unpacking machine (11) through a conveyor belt (CV). The conveyor belt may be a corrugated conveyor belt and may be installed in an inclined structure, but is not limited thereto. The unpacking machine (11) can unpack the packed or compressed blocks, while the unpacking machine (11) can be constituted by a pair of facing separate rollers. The surface of the separating roller can be provided with separating knives which are matched with each other to unpack the packed waste aluminum raw materials when rotating. The bale breaker (11) can have the function of removing impurities while unpacking or compressing the waste aluminum raw materials. The silk screen with a plurality of holes can be arranged below the bale breaker (11), and various impurities mixed during packing or compression are removed through the silk screen. The unpacking machine (11) can adopt a shell-shaped structure, and a guide channel for guiding the unpacked waste aluminum raw materials to a conveyor belt (CV) can be formed below the shell. The unpacked waste aluminum raw material discharged through the guide passage is conveyed to the crushing module (12) through a conveyor belt (CV).

The deoxidizer producing device based on the invention can adopt various conveyor belts (CV), and conveyor belts with the same structure or similar structures or different structures which are arranged at different positions are all represented by a symbol. The conveyor belts (CV) indicated by a symbol have respective appropriate structures according to the use, and the invention is not limited to a specific conveyor belt. In addition, various liquid or solid impurities may be generated during the process of the waste aluminum raw material, and the impurities may be collected by the collection boxes (D-1 to D-N) installed on the various process modules or process units. Each of the collecting boxes (D-1 to D-N) can collect various impurities, and the collecting boxes (D-1 to D-N) can be designed to be suitable for collecting various impurities generated during the treatment process, and the invention is not limited to a specific collecting box.

The deoxidizer production device comprises a plurality of modules or units for completing various processes, and waste aluminum raw materials treated in each process can be conveyed through a conveyor belt (CV). The scrap aluminum raw material treated in each step may be conveyed by a suitable conveyor belt (CV), as explained for the conveyor belt (CV), and will not be described if not particularly required.

The crushing module (12) may take a variety of configurations, wherein a horizontal crusher is suggested, and the crushing module (12) may be used to chop the unpacked aluminum feedstock. The crushing module (12) can adopt a roller structure and is composed of a roller shaft and cutters uniformly distributed along the surface of the roller. The crushing module (12) has the function of increasing the contact area between the waste aluminum raw material and hot air. In order to achieve this function, the shredding module (12) needs to prevent compression or sticking of different faces to each other during cutting. The cutters distributed on the drum surface of the crushing module (12) are provided with cutter points which can be extended along the drum surface, and the cutter points vertically cut the thrown waste aluminum raw materials. The cutting of the waste aluminum raw material can be carried out in various ways and is not limited to the attached embodiment examples. As described above, the scrap aluminum raw material cut by the crushing module is conveyed to the vibratory screening module (13) by the conveyor belt (CV).

If the deoxidizer is added into a melting furnace with impurities in the production process, the deoxidizer affects the quality of steel making or metal melting, so that the impurities in the deoxidizer need to be completely removed. Accordingly, various impurities need to be removed during the transportation process or by a separate device. For example, a magnesium separator or a similar permanent magnet iron separator is installed on a conveyor belt (CV) that transports a crushed aluminum raw material. The separated aluminum raw material for separating magnesium or similar metal components in the conveying process is conveyed to a vibration screening module (13), and the vibration screening module is composed of a vibration feeder (131) and an electric control separation unit (132). The vibrating feeder (131) separates the aluminum raw materials through vibration, and uniformly stirs the separated aluminum raw materials which are crushed into different sizes. The electrically controlled separating unit (132) is a separating device equipped with a permanent magnet drum for separating magnetic substances and non-magnetic substances by rotating the permanent magnet drum at a high speed. After the separated aluminum raw material uniformly mixed by the vibrating feeder (131) is put into an electrically controlled separation unit (132) such as an Eddy Current Separator (ECS), the magnetic substance and the non-magnetic substance are separated by the high-speed rotation of the roller. When the electric control separation unit (132) rotates at a high speed, the magnetic impurities such as iron and the like can be removed while the aluminum raw material is stirred and separated. The separated aluminum raw materials which are removed of impurities and uniformly stirred in the mode are conveyed to the feeding adjusting module (14) through conveying devices such as an S-shaped conveying belt.

The feeding adjusting module (14) has a function of controlling the amount of the aluminum raw material of the crushed separated impurities, which is transferred to the retort rotary furnace module (15), and is composed of at least two hoppers, the aluminum raw material of the crushed separated impurities, which is removed of the impurities by the vibration screening module (13) and uniformly stirred, is transferred to the bin (S L) through the S-shaped conveyor belt and the feeding conveyor belt, the bin (S L) may have a function of controlling the amount of the aluminum raw material supplied to the retort rotary furnace module (15), and may be connected to the retort rotary furnace module (15) through the screw feeder, the screw feeder may be made in a structure in which a rotating shaft screw is installed in a cylindrical sealed housing, and the amount of the aluminum raw material supplied by the screw feeder is controlled by the rotation speed of the screw provided on the belt conveyor belt or the screw feeder, and in addition, the aluminum raw material of the crushed separated impurities is subjected to the retort in the retort rotary furnace module (15) to.

The rotary retort (15) may be, for example, an Indirect-fired controlled Atmosphere furnace (Indirect-fire controlled atmospheric-IDEX) having a function of vaporizing and separating organic materials from the aluminum raw material. The dry distillation rotary furnace module (15) can adopt a mode of increasing the temperature of hot gas to 450-850 ℃ by using a burner which works in an environment isolated from oxygen inflow to dry distill the aluminum raw material. High-temperature hot air flows into the dry distillation rotary furnace module (15), and the hot air flows into the center of the dry distillation furnace along the vertical direction of the cylindrical furnace body. The aluminum raw material flowed into the inside may contain oxygen below the minimum levelAnd the dry distillation rotary furnace module (15) can adopt a double flat damper structure. The internal temperature of the rotary retort furnace module (15) is an important factor for determining the level of removing impurities such as organic matters or the quality of the separated aluminum raw material, and therefore, the internal temperature needs to be properly controlled. For example, the temperature of hot air heated by the burner can be controlled within the range of 780-830 ℃, and the temperature of hot air discharged from the dry distillation rotary furnace module (15) can be controlled within the range of 520-580 ℃. In addition, the dry distillation rotary furnace module (15) can be connected with a dust collecting device such as a cyclone separator and the like to collect and remove dust generated in the dry distillation process. Through the dry distillation process, the waste aluminum raw material can be changed into the off-white dry distillation aluminum with the surface, and the dry distillation aluminum is discharged at the temperature of 350-450 ℃ and is conveyed to the particle forming module (16) through the conveyor belt. The particle forming module (16) forms the dry distilled aluminum into bean-shaped particles and the like. The temperature of the aluminum by dry distillation can be controlled within the range of 350-450 ℃, and the particle forming module (16) can adopt a rotatable hammer body structure with a plurality of spherical grooves inside. The rotating hammer body crushes the aluminum retort, and the spherical grooves of the hammer body shape the crushed aluminum retort into bean-shaped particles and the like. The particulate aluminium thus comminuted, shaped into bean-shaped particles, is conveyed to a feeding module (17). The feeding module (17) comprises at least one hopper from which it is conveyed to the extrusion module (18) by means of an extrusion screw feeder. The extrusion screw feeder can have the function of adjusting the pressure, thereby adjusting the density of the granular aluminum. The specific gravity of normal aluminum is 2.7g/cm³And the specific gravity of the granular aluminum is less than 2.0g/cm³. For example, the specific gravity of the granular aluminum is between 0.6 and 1.0, and the specific gravity of the deoxidizer made of the granular aluminum is between 1.2 and 2.5g/cm³In the meantime.

In one embodiment of the invention, the specific gravity of the deoxidizer is 1.8-2.2 g/cm³The extrusion screw feeder and the extrusion molding module (18) can control the specific gravity of the deoxidizer. The pressure of the extrusion screw feeder can be controlled at 3 atmospheric pressures or above, and the specific gravity of the granular aluminum during cooling is controlled in a pressure control mode. The extrusion molding module (18) is formed by a pair of briquetting rolls facing each other, each briquetting roll having scalloped grooves. The size of the scallop shaped groove on the pair of briquetting rolls may be preset, and the scallop shaped groove is supplied to the pairThe amount of particulate aluminum of the briquetting rolls may also be preset. When the particulate aluminum is fed into the shellfish slots of the pair of briquetting rolls, the rolls may be extruded with each other to form a shellfish deoxidizer. The deoxidizer thus formed is conveyed to a trommel die (19), and the residue generated in the forming process of the bell-shaped deoxidizer is conveyed to a feeding die (17) and put into the manufacturing process of the granular aluminum, thereby filling the vacant space in the forming process of the granules.

The shellfish-like deoxidizer, which is sufficiently cooled in the trommel block (19), can be rotated in the cylindrical sieve, and thereby the burrs attached to the surface can be completely removed. The shell-shaped deoxidizer with the burrs removed is conveyed to a sorting module (20) to sort qualified products and defective products. The bell-shaped deoxidizer is formed by extrusion molding of a pair of briquetting rollers in an extrusion molding module into deoxidizer with the same size. Therefore, the sorting criteria are set in terms of weight. A load sensor can be arranged on the sorting module (20) to measure the weight of each deoxidizer. For example, the standard weight of 80g and less than 70g of the Belleville-shaped deoxidizer is determined to be defective and transferred to a defective item recovery box (SB) with a specific gravity of 2g/cm³And the bell-shaped deoxidizer with the weight of 80g is judged as a qualified product and conveyed to a qualified product recovery box (SB). The bell-shaped deoxidizer determined as a defective product is transferred to an extrusion molding module (18) or other processes and reprocessed. In addition, the residue separated in the trommel module (19) may also be conveyed to the feed module (17) for reprocessing.

The defective products or residues can be reused in various ways, and the way of reusing is not limited to the above-described reprocessing way.

FIG. 2 is an illustration of an embodiment of a dry distillation process for a deoxidizer producing apparatus according to the present invention. Referring to fig. 2, the retort rotary furnace module (15) comprises the following components: a cylindrical rotary furnace unit (21) extending obliquely, a separation unit (211) formed at the inlet of the rotary furnace unit (21), a discharge unit (212) formed at the end of the rotary furnace unit (21), a cyclone separator (24) connected with the inside of the rotary furnace unit (21) to collect impurities, a burner unit (23) to heat air flowing into the rotary furnace unit (21), and a combustion fan (25) to supply air to the burner unit (23).

The aluminum raw material conveyed by the Conveyor (CV) is fed into a quantitative feeding unit (141), and the quantitative feeding unit (141) feeds the aluminum raw material into the rotary kiln unit (21) in a quantitative manner by controlling the screw. The hot gas heated by the burner unit (23) flows into the center of the rotary kiln unit (21) through an air duct. The burner unit (23) can heat hot gas to 780-840 ℃, and hot gas close to the temperature range flows into the rotary furnace unit (21). The high-temperature hot gas flows in along the extensible gas guide pipe of the central axis of the furnace body of the rotary furnace unit (21), and the furnace body of the rotary furnace unit (21) can adopt a rotary structure. Solid or liquid impurities generated during dry distillation inside the rotary kiln unit (21) are discharged from the separation unit (211), and gaseous impurities are introduced into the cyclone (24) along the discharge pipe and collected. The temperature of the gas discharged to the cyclone separator (24) can reach 380-420 ℃, and solid or liquid impurities generated in the cooling process are discharged from a collecting and separating unit formed below the cyclone separator (24).

The gas having a decreased temperature is introduced into the burner unit (23) through the circulation unit (RF).

The aluminum carbonized in the rotary kiln unit (21) is discharged through a discharge unit (212), and the discharge unit (212) is formed of a pair of branched discharge passages. One of the channels may be coupled to a conveyor device (221), such as a slat chain conveyor, and the other channel may be coupled to an emergency recovery unit (222). The conveying device (221) is a conveying channel when the dry distillation rotary furnace module (15) works normally, and the emergency recovery unit (222) is a temporary recovery mode. The carbonized aluminum conveyed by the conveying device (221) is transferred as a storage and supply means for the subsequent process. In addition, dust-like foreign matters possibly generated during the conveying process are discharged to the outside through a discharge pipe (FN). The high-temperature air generated by the operation of the burner unit (23) is cooled by the cooling unit (26), thereby preventing the interior of the combustion Chamber (CR) from being overheated. Air is supplied to the burner unit (23) by the combustion fan (25), and the air supplied to the burner unit (23) exchanges heat with high-temperature air introduced into the cooling unit (26). Accordingly, the air supplied by the combustion fan (25) is supplied to the burner unit (23) at a high temperature. High-temperature air is supplied to the burner unit (23) in accordance with heat exchange between air supplied by the combustion fan (25) and air introduced into the cooling unit (26). This prevents the low-temperature air supplied from the combustion fan (25) from being supplied to the combustion Chamber (CR), thereby improving the combustion efficiency. In addition, impurities generated when the burner unit (23) is operated are cooled by the discharge cooling unit (27) and then discharged to the outside through the bag filter unit (28).

The dry distillation rotary furnace module (15) can be used for dry distillation separation of aluminum by using an Indirect-combustion controlled Atmosphere furnace (Indirect-fire controlled atmospheric-IDEX) and a dry distillation method similar to the Indirect-combustion controlled Atmosphere furnace, and the dry distillation method is not limited to the embodiment shown in the figure.

FIG. 3 is an illustration of an embodiment of the deoxidizer production process based on the invention. Referring to fig. 3, the process for producing an aluminum deoxidizer from a waste aluminum raw material includes the following steps:

a crushing step (P31) for unpacking and crushing the waste aluminum material by means of a unpacking machine (11) and a crushing module (12);

a separation impurity process (P32) for removing impurities by a vibration screening module (13);

a step (P33) of throwing the crushed waste aluminum raw material without impurities into a rotary furnace unit (21) of a dry distillation rotary furnace module (15), and removing organic matters by an indirect heating mode of removing the organic matters by dry distillation with hot air at 540-840 ℃;

a molding step (P34) for extrusion molding of the aluminum retort from which the organic matter has been removed into bean-shaped granular aluminum;

a briquetting roller step (P35) for controlling the density of the granular aluminum and feeding the granular aluminum to a briquetting roller of the extrusion molding module (18);

a step (P36) of molding a bell-shaped deoxidizer by a briquette roll and removing impurities generated during the molding process;

and a weight detection step (P37) for detecting and sorting the bell-shaped deoxidizers.

The waste aluminum material for producing the aluminum deoxidizer may be an aluminum can bundle (UBC), but is not limited thereto. Metallic impurities such as iron, manganese and the like can be separated and removed from the unpacked waste aluminum raw material. First, a scrap aluminum raw material (UBC) is crushed by a crusher by cutting (P31). Then, from the powderThe method comprises the steps of feeding the separated aluminum raw material into a rotary kiln unit through a flat conveyor belt unit capable of quantitative feeding, (P33) the rotary kiln unit may employ an Indirect-combustion Controlled Atmosphere furnace (inert-heated Controlled Atmosphere-IDEX), and flowing hot gas of 780-820 ℃ (optimum temperature is 800 ℃) into the kiln body, the dry-distilled separated aluminum raw material, the dry-distilled aluminum may be discharged to the outside at a temperature of 520-580 ℃ (optimum temperature is 540 ℃). the hot gas is circulated in such a manner that gas heated to a high temperature of, for example, 800 ℃ is introduced into the rotary kiln unit, while the dry-distilled aluminum discharged from the rotary kiln unit has a temperature of, for example, 400 ℃ as high as that of, the high-temperature dry-distilled aluminum may be conveyed by a conveyor belt such as a flap conveyor belt or the like to a pellet forming module to form bean-like deoxidizers (P34), feeding the bean-like pellet aluminum raw material into an extrusion die block, and feeding the pellet forming process may include a procedure of feeding, a pair of briquetting rolls constituting a pair of a briquette rolls, and a deoxidizer, and feeding the pellet forming the pellet-like deoxidizer, and recovering the deoxidizer, the pellet-shaped deoxidizer, the pellet aluminum raw material may be fed by a process of a pre-pressing process of 3925 mm, a briquette forming process of a briquette forming pellet forming process, a briquette forming pellet, a briquette forming process, a briquette forming pellet, a briquette forming pellet of a briquette forming pellet by a briquette forming pellet³75-85 g (standard weight is 80 g). The bell-shaped deoxidizer, the weight of which was less than 70g as a result of the weight detection, was judged to be a defective product and was again fed into the extrusion molding module.

The deoxidizer can be produced under various conditions, and the production process and the process flow are not limited to the above-described examples.

FIGS. 4a and 4b are illustrations of one embodiment of the deoxidizer produced by the deoxidizer producing device according to the present invention. Referring to fig. 4a, the granular aluminum raw material is bean-shaped and turns to a grayish white color after dry distillation. The specific gravity of the granular aluminum raw material is controllable, and the granular aluminum raw material can be light or heavy. The diameter of the granular aluminum raw material is also controllable, andthe size of the bell-shaped deoxidizer molded into the briquetting roller module as shown in FIG. 4b may be set to 50mm × 50mm × (25 to 30) mm, but is not limited thereto and the specific gravity of the bell-shaped deoxidizer may be set to 2g/cm³. The specific gravity is suitable for charging into a furnace (furnace) using a charging unit such as a launcher. The shape of the deoxidizer is not limited to the shell shape, and various shapes can be set.

The deoxidizer production device based on the invention adopts an indirect heating mode, Volatile Organic Compounds (VOC) are treated in a furnace, the beta-deoxidizer is directly compressed and formed without melting, and the energy consumption for producing the deoxidizer is reduced. In addition, the combustion process in the furnace for generating carbon dioxide is not adopted, so that carbon dioxide gas does not need to be discharged, and the method belongs to the environment-friendly technology. The production process based on the invention improves the competitiveness by reducing energy consumption, and saves the initial equipment cost and reduces the production cost without using a smelting furnace. In addition, since the compression system is used without using a furnace, the apparatus can be operated intermittently. Further, the specific gravity of the deoxidizer is controlled to 2.0g/cm in the compression process³Or above, the deoxidizer is promoted to more easily penetrate into the molten metal.

The best embodiments of the present invention are described in detail above with reference to the accompanying drawings. A person having a basic knowledge of the industry can, with reference to the embodiments described above, carry out many variations or modifications within the basic idea of the invention. The invention is not limited to the preferred embodiments described above, but is not limited to the variants or modifications described above, but rather to the scope of the following claims.

Claims

1. A deoxidizer producing device, characterized in that the deoxidizer producing device comprises the following components:

a crushing module (12) for crushing the aluminum raw material;

a vibration screening module (13) for applying vibration to the aluminum raw material crushed by the crushing module (12) to separate impurities;

a feeding adjusting module (14) which is conveyed by the temporary storage vibration screening module (13) quantitatively by a conveyor belt after the aluminum raw material which is crushed and separated from impurities is conveyed;

a dry distillation rotary furnace module (15) which carries out dry distillation on the aluminum raw material which is conveyed by the feeding adjusting module (14) and is crushed and separated from impurities at a set temperature so as to further remove the impurities;

forming the dry distillation raw material with impurities removed from the dry distillation rotary furnace module (15) into a bean-shaped or granular particle forming module (16);

an extrusion molding module (18) for compressing and molding the bean-shaped or granular raw material conveyed by the granule molding module (16) into a shell shape;

a sorting module (20) for sorting the shelly shaped molding materials conveyed by the extrusion molding module (18) according to weight or size;

in the dry distillation rotary furnace module (15), a burner unit (23) heats hot air to 780-840 ℃, hot air close to the temperature range flows into a rotary furnace unit (21), high-temperature hot air flows in along an air guide pipe extending along the central axis of the furnace body of the rotary furnace unit (21), and the furnace body of the rotary furnace unit (21) adopts a rotating structure; hot gas at 780-820 ℃ flows into the furnace body, aluminum raw materials are separated through dry distillation, and dry distillation aluminum is discharged to the outside at 520-580 ℃; the particle forming module (16) forms the dry distilled aluminum into bean-shaped particles; the particle forming module (16) adopts a rotatable hammer body structure with a plurality of spherical grooves inside.

2. Deoxidizer production device according to claim 1, characterized in that the rotary retort furnace module (15) comprises the following components: a rotary furnace unit (21) for performing dry distillation on the aluminum raw material which is conveyed by the feeding adjusting module (14) and is crushed and separated from impurities, a burner unit (23) for heating air flowing into the rotary furnace unit (21), and a cyclone separator (24) which is connected with the rotary furnace unit (21) and collects dust.

3. The deoxidizer production apparatus according to claim 1, wherein the extrusion molding module (18) is formed of a pair of briquetting rolls, the pair of briquetting rolls facing each other having scalloped grooves, and the granulated aluminum raw material supplied to the briquetting rolls is extruded into a scalloped deoxidizer; in the trommel module (19), the fully cooled bellied deoxidizer rotates in the cylindrical screen to remove the burrs attached to the surface.

4. The process for producing a deoxidizer by using the deoxidizer production device of claim 1, 2 or 3, wherein the production of an aluminum deoxidizer from a waste aluminum raw material comprises the following steps:

a crushing process of unpacking and crushing the waste aluminum raw material through an unpacking machine (11) and a crushing module (12);

a impurity separation process of removing impurities through a vibration screening module (13);

putting the crushed waste aluminum raw material with impurities removed into a rotary furnace unit (21) of a dry distillation rotary furnace module (15), wherein the rotary furnace unit adopts an indirect combustion controllable atmosphere furnace, hot gas at 780-820 ℃ flows into the furnace body, and the organic matter is removed by an indirect heating mode of removing the organic matter by hot air dry distillation; discharging the aluminum subjected to dry distillation to the outside at the temperature of 520-580 ℃;

a forming procedure of extruding and forming the dry distillation aluminum without organic matters into bean-shaped granular aluminum;

a briquetting roller step of controlling the density of the granular aluminum and feeding the granular aluminum to a briquetting roller of an extrusion molding module (18);

the extrusion molding module is composed of a pair of briquetting rollers, the pair of briquetting rollers which face each other are provided with shell-shaped grooves, and the shell-shaped molding and residue removing procedures are used for extruding and molding the granular aluminum raw material which is fed to the briquetting rollers into the shell-shaped deoxidizer and removing impurities generated in the molding process;

a weight detection step (P37) for detecting and sorting the bell-shaped deoxidizers;

the extrusion screw feeder and the extrusion molding module (18) control the specific gravity of the deoxidizer, the pressure of the extrusion screw feeder is controlled at 3 atmospheric pressures or above, and the specific gravity of the granular aluminum during cooling is controlled in a pressure control mode.

5. The process for producing a deoxidizer as claimed in claim 4, wherein the granulated aluminum is fed into the shell-shaped grooves of a pair of briquetting rolls, the rolls are press-molded with each other to form a shell-shaped deoxidizer, the deoxidizer thus formed is fed to the ore screen module (19), and the residue generated during the formation of the shell-shaped deoxidizer is fed to the feed module (17) and is put into the granulated aluminum forming process to fill the vacant space during the formation of the granulated aluminum.