Aluminum material preheating anti-combustion and automatic discharging screening device

Abstract

The utility model discloses an aluminum material preheating anti-combustion and automatic discharging and screening device which comprises an aluminum material preheating anti-combustion unit and a discharging and screening unit. The aluminum material preheating anti-combustion unit comprises a feed port sealing box, a waste gas exhaust port, an aluminum material inlet, a feed pipeline, a drying roller, a discharge port sealing box, a furnace kiln hot gas pipe, a furnace kiln hot gas inlet and an aluminum material outlet; the discharging and screening unit comprises an upper end pneumatic flap valve, an aluminum material temporary storage bin, a lower end pneumatic flap valve, a vibration feeder, a fine aluminum material pipeline and a fine aluminum material hopper. The feeding port sealing box and the discharging port sealing box are arranged at the two ends of the drying roller, and the pneumatic flap valve is arranged at the aluminum material outlet, so that the drying roller is sealed, and air is prevented from entering the drying roller; the vibrating feeder and the screen are arranged at the lower end of the aluminum material temporary storage bin, coarse aluminum materials and fine aluminum materials are separated from dust, the coarse aluminum materials enter the furnace kiln aluminum liquid well to be melted and utilized, energy consumption can be reduced, the production cost of enterprises can be reduced, and the economic benefits of the enterprises can be improved.

Description

Technical Field

[0001] The utility model relates to an aluminum material preheating and unloading device, in particular to an aluminum material preheating combustion prevention and automatic unloading and screening device, belonging to the technical field of aluminum liquid smelting and processing. Background Art

[0002] In the aluminum liquid smelting process, after the aluminum material is floated, it first needs to go through a drying process to preheat the surface of the aluminum material, so as to rationally and fully utilize energy to melt the aluminum material and reduce the smelting time.

[0003] When the traditional aluminum material is preheated in the drying drum, the paint on the surface of the aluminum material will vaporize under high temperature preheating. Because the feeding port is open, air will enter the drying drum. If the temperature is not well controlled, the vaporized paint on the surface of the aluminum material will easily burn when it contacts the oxygen in the air, which will not only affect production, but also easily cause safety accidents. Moreover, a lot of residue will be generated after combustion, which greatly reduces the recovery rate of aluminum materials and causes economic losses to enterprises. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide an aluminum material preheating and combustion prevention and automatic material feeding and screening device, by arranging a feed inlet sealing box and a discharge outlet sealing box at both ends of a drying drum, and by arranging a pneumatic flap valve at the aluminum material outlet, thereby achieving sealing of the drying drum and preventing air from entering the drying drum; by arranging a vibrating feeder at the lower end of the aluminum material temporary storage bin, the separation of coarse and fine aluminum materials and dust is completed.

[0005] The technical solutions adopted by the utility model to solve the technical problems are as follows:

[0006] An aluminum material preheating and combustion prevention and automatic material unloading and screening device, comprising an aluminum material preheating and combustion prevention unit and a material unloading and screening unit, the aluminum material preheating and combustion prevention unit comprising a feed inlet sealing box, an exhaust gas outlet, an aluminum material inlet, a feed pipe, a drying drum, a discharge port sealing box, a furnace hot air pipe, a furnace hot air inlet and an aluminum material outlet, the two ends of the drying drum are respectively provided with a feed inlet sealing box and a discharge port sealing box, the feed inlet sealing box end is provided with an exhaust gas outlet, and the discharge port sealing box end is provided with a furnace hot air pipe; The unloading screening unit includes an upper pneumatic flap valve, an aluminum material temporary storage bin, a lower pneumatic flap valve, a vibrating feeder, an aluminum fine material pipeline and an aluminum fine material hopper. The upper pneumatic flap valve and the lower pneumatic flap valve both include a flap shaft, a flap valve, a flap bearing and a flap cylinder. The flap cylinder is connected to the flap shaft. Flap bearings are provided at both ends of the flap shaft. The flap valve is welded on the flap shaft. When the flap cylinder is extended or retracted, the flap cylinder drives the flap shaft to rotate, and the flap shaft drives the flap valve to rotate, thereby realizing the valve plate flipping action.

[0007] Furthermore, the vibrating feeder is arranged below the pneumatic flap valve at the lower end, and a vibrating motor is arranged below the vibrating feeder. Under the action of the vibrating motor, the coarse aluminum material on the vibrating feeder screen enters the aluminum liquid well of the furnace through the coarse aluminum material pipeline, and the fine aluminum material and dust on the vibrating feeder screen enter the fine aluminum material hopper through the fine aluminum material pipeline.

[0008] Furthermore, the drying drum is provided with an aluminum material inlet at one end and an aluminum material outlet at the other end. The aluminum material enters the drying drum from the aluminum material inlet through a feeding pipe, and the hot air from the furnace enters the drying drum from the aluminum material outlet through a hot air pipe of the furnace, and the preheated smoke is discharged from the exhaust gas outlet at the aluminum material inlet through a fan.

[0009] Furthermore, a drying drum bracket is provided at the lower end of the drying drum; and an automatic unloading and screening device bracket is provided at the discharge end of the drying drum.

[0010] The working principle and positive beneficial effects of the utility model are as follows:

[0011] During the preheating process of aluminum material, air cannot enter. Oxygen in the air will cause the aluminum material to burn and melt in the drying drum, affecting production. Therefore, in the utility model, by setting a feed inlet sealing box and a discharge outlet sealing box, the drying drum is sealed to prevent air from entering the drying drum. An upper pneumatic flap valve, an aluminum material temporary storage bin and a lower pneumatic flap valve are provided at the aluminum material outlet of the drying drum. The upper pneumatic flap valve and the lower pneumatic flap valve both include a flap shaft, a flap valve, a flap bearing and a flap cylinder. The flap cylinder is connected to the flap shaft. Flap bearings are provided at both ends of the flap shaft. The flap valve is welded on the flap shaft. When the flap cylinder is extended and retracted, the flap cylinder drives the flap shaft to rotate, and the flap shaft drives the flap valve to rotate to realize the action of valve plate flipping. In order to prevent air from entering the interior of the drying drum from here during feeding, the opening and closing of these two pneumatic flap valves are switched synchronously. When the aluminum material in the drying drum is preheated and reaches the aluminum material outlet, the upper pneumatic flap valve opens and the lower pneumatic flap valve closes. Therefore, the utility model designs a material screening device that is different from the prior art, which prevents air from entering the drying drum and screens out aluminum fines and dust.

[0012] The utility model uses the hot air from the furnace to preheat the aluminum material, and isolates the air from entering the drying drum by switching the upper and lower pneumatic flap valves open and closed, preventing the aluminum material from burning when preheating in the drying drum. The preheated aluminum material is separated from the coarse aluminum material and the fine aluminum material and dust by the screen of the vibrating feeder, and the coarse aluminum material enters the aluminum liquid well of the furnace to be melted, and the fine aluminum material and dust enter the hopper to be recycled again. The preheated coarse aluminum material can significantly increase the melting rate, reduce heat loss, save energy, reduce the burning loss of fine aluminum material, increase the recovery rate of aluminum material, reduce the production cost of the enterprise, and improve the economic benefits of the enterprise.

[0013] In the utility model, the recycled aluminum material enters the drying drum from the aluminum material inlet through the feed pipe. At this time, the drying drum is started and begins to rotate to transport the aluminum material to the aluminum material outlet. In this process, the hot air from the furnace enters the drying drum from the aluminum material outlet through the hot air pipe of the furnace to preheat the aluminum material. The preheated smoke is discharged from the exhaust gas outlet at the aluminum material inlet through the fan.

[0014] The automatic material unloading and screening device of the utility model can prevent air from entering the drying drum and screen out aluminum fines and dust. When working, the closed upper pneumatic flap valve can prevent air from entering the drying drum, and the aluminum material in the aluminum material temporary storage bin falls into the vibrating feeder below as the lower pneumatic flap valve opens. When the upper pneumatic flap valve opens, the lower pneumatic flap valve closes, and the aluminum material enters the temporary storage bin. The closed lower pneumatic flap valve can prevent air from entering the drying drum. In this way, automatic material unloading and air isolation from entering the drying drum are achieved by switching the upper and lower pneumatic flap valves to open and close reciprocatingly. A screen is set in the middle of the vibrating feeder, and a vibrating motor is set at the bottom. Under the action of the vibrating motor, the aluminum material on the screen of the vibrating feeder moves forward slowly. The screen separates the coarse aluminum material and fine aluminum material from the dust. The coarse aluminum material enters the aluminum liquid well of the furnace through the aluminum coarse material pipeline for melting and utilization. Because the preheated aluminum material has temperature, it can reduce energy consumption and reduce the production cost of the enterprise during melting. The fine aluminum material and dust fall into the fine aluminum material hopper through the fine aluminum material pipeline from the bottom of the screen. The fine aluminum material and dust no longer enter the aluminum liquid well of the furnace for melting. Because the volume of the fine aluminum material is small and the temperature of the aluminum liquid well of the furnace is high, the fine aluminum material will be lost after entering. The dust enters the aluminum liquid well, and the aluminum liquid will produce aluminum slag, which will reduce the recovery rate of the aluminum material and reduce the economic benefits of the enterprise. The fine aluminum material and dust after screening enter the fine aluminum material hopper, and other processes are used for subsequent recycling, which improves the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other corresponding drawings can be obtained based on these drawings without creative work. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more obvious:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle.

[0018] In the figure, 1 is a sealing box for the feed port, 2 is an exhaust gas outlet, 3 is an aluminum material inlet, 4 is a feed pipe, 5 is a drying drum, 6 is a sealing box for the discharge port, 7 is a furnace hot air pipe, 8 is a furnace hot air inlet, 9 is an aluminum material outlet, 10 is an upper pneumatic flap valve, 11 is an aluminum material temporary storage bin, 12 is a lower pneumatic flap valve, 13 is a vibrating feeder, 14 is a bracket for the automatic unloading and screening device, 15 is an aluminum fine material hopper, 16 is a drying drum bracket, 17 is a flap shaft, 18 is a flap valve, 19 is a flap bearing, 20 is a flap cylinder, 21 is a vibrating feeder screen, 22 is a vibration motor, 23 is an aluminum fine material pipeline, 24 is an aluminum coarse material pipeline, and 25 is an aluminum liquid well for the furnace. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: See Figure 1 and Figure 2 A device for preheating and preventing burning of aluminum materials and automatically screening and discharging materials, comprising an aluminum material preheating and preventing burning unit and an automatic screening and discharging unit, wherein the aluminum material preheating and preventing burning unit comprises a feed port sealing box 1, an exhaust gas outlet 2, an aluminum material inlet 3, a feed pipe 4, a drying drum 5, a discharge port sealing box 6, a furnace hot air pipe 7, a furnace hot air inlet 8 and an aluminum material outlet 9, wherein the feed port sealing box 1 and the discharge port sealing box 6 are respectively arranged at both ends of the drying drum 5, the exhaust gas outlet 2 is arranged at one end of the feed port sealing box 1, and the furnace hot air pipe 7 is arranged at one end of the discharge port sealing box 6; the automatic screening and discharging unit comprises an upper The upper pneumatic flap valve 10, the aluminum material temporary storage bin 11, the lower pneumatic flap valve 12, the vibrating feeder 13, the aluminum fine material pipeline 23 and the aluminum fine material hopper 15, the upper pneumatic flap valve 10 and the lower pneumatic flap valve 12 both include a flap shaft 17, a flap valve 18, a flap bearing 19 and a flap cylinder 20, the flap cylinder 20 is connected to the flap shaft 17, flap bearings 19 are arranged at both ends of the flap shaft 17, the flap valve 18 is welded to the flap shaft 17, when the flap cylinder 20 is extended and retracted, the flap cylinder 20 drives the flap shaft 17 to rotate, and the flap shaft 17 drives the flap valve 18 to rotate, so as to realize the valve plate flipping action.

[0021] A vibrating feeder 13 is arranged below the pneumatic flap valve 12 at the lower end, and a vibrating motor 22 is arranged below the vibrating feeder 13. Under the action of the vibrating motor 22, the coarse aluminum material on the vibrating feeder screen 21 enters the aluminum liquid well 25 of the furnace through the coarse aluminum material pipeline 24, and the fine aluminum material and dust on the vibrating feeder screen 21 enter the fine aluminum material hopper 15 through the fine aluminum material pipeline 23.

[0022] An aluminum material inlet 3 is provided at one end of the drying drum 5, and an aluminum material outlet 9 is provided at the other end. The aluminum material enters the drying drum 5 from the aluminum material inlet 3 through the feed pipe 4, and the furnace hot air enters the drying drum 5 from the aluminum material outlet 9 through the furnace hot air pipe 7. The preheated smoke is discharged from the exhaust gas outlet 2 at the aluminum material inlet 3 through the fan.

[0023] A drying drum bracket 16 is provided at the lower end of the drying drum 5; and an automatic unloading and screening device bracket 14 is provided at the discharge end of the drying drum.

[0024] During the preheating process of the aluminum material, air cannot enter, and the oxygen in the air will cause the aluminum material to burn and melt in the drying drum 5, affecting production. Therefore, in the present utility model, by setting the feed inlet sealing box 1 and the discharge outlet sealing box 6, the drying drum 5 is sealed to prevent air from entering the drying drum 5. An upper pneumatic flap valve 10, an aluminum material temporary storage bin 11 and a lower pneumatic flap valve 12 are provided at the aluminum material outlet 9 of the drying drum 5. The upper pneumatic flap valve 10 and the lower pneumatic flap valve 12 both include a flap shaft 17, a flap valve 18, a flap bearing 19 and a flap cylinder 20. The flap cylinder 20 is connected to the flap shaft 17, and flap bearings 19 are provided at both ends of the flap shaft 17. The flap valve 18 is welded on the flap shaft 17. When the flap cylinder is extended and retracted, the flap cylinder drives the flap shaft to rotate, and the flap shaft drives the flap valve to rotate, so as to realize the action of valve plate flipping. In order to prevent air from entering the drying drum during feeding, the two pneumatic flap valves are opened and closed synchronously. When the aluminum material in the drying drum reaches the aluminum material outlet after being preheated, the upper pneumatic flap valve 10 is opened and the lower pneumatic flap valve 12 is closed. Therefore, the utility model designs a material screening device that is different from the prior art, which prevents air from entering the drying drum and screens out aluminum fines and dust.

[0025] The utility model preheats aluminum material by using hot air from a furnace, and isolates air from entering a drying drum by switching the upper and lower pneumatic flap valves open and closed, thereby preventing the aluminum material from burning when preheating in the drying drum. The preheated aluminum material is separated from the coarse aluminum material and the fine aluminum material from dust by the screen 21 of the vibrating feeder 13, and the coarse aluminum material enters the aluminum liquid well 25 of the furnace for melting, and the fine aluminum material and dust enter the hopper 15 for recycling again. The preheated coarse aluminum material can significantly increase the melting rate, reduce heat loss, save energy, reduce the burning loss of fine aluminum material, increase the recovery rate of aluminum material, reduce the production cost of the enterprise, and improve the economic benefits of the enterprise.

[0026] In the utility model, the recycled aluminum material enters the drying drum 5 from the aluminum material inlet 3 through the feed pipe 4. At this time, the drying drum is started and begins to rotate to transport the aluminum material to the aluminum material outlet 9. In this process, the furnace hot air enters the drying drum 5 from the aluminum material outlet 9 through the furnace hot air pipe 7 to preheat the aluminum material. The preheated smoke is discharged from the exhaust gas outlet 2 at the aluminum material inlet 3 through the fan.

[0027] The automatic material unloading and screening device of the utility model can prevent air from entering the drying drum 5 and screen out aluminum fines and dust. When working, the closed upper pneumatic flap valve 10 can prevent air from entering the drying drum, and the aluminum material in the aluminum material temporary storage bin 11 falls into the vibrating feeder 13 below as the lower pneumatic flap valve 12 opens. When the upper pneumatic flap valve 10 is opened, the lower pneumatic flap valve 12 is closed, and the aluminum material enters the temporary storage bin. The closed lower pneumatic flap valve 12 can prevent air from entering the drying drum. In this way, automatic material unloading and air isolation from entering the drying drum are achieved by switching the upper and lower pneumatic flap valves to open and close reciprocatingly. A screen is arranged in the middle of the vibrating feeder, and a vibrating motor 13 is arranged at the bottom. Under the action of the vibrating motor 13, the aluminum material on the screen 21 of the vibrating feeder moves forward slowly, and the screen separates the coarse aluminum material and fine aluminum material from the dust. The coarse aluminum material enters the aluminum liquid well 25 of the furnace through the aluminum coarse material pipeline 24 for melting and utilization. Because the preheated aluminum material has a temperature, it can reduce energy consumption and reduce the production cost of the enterprise during melting. The fine aluminum material and dust fall into the fine aluminum material hopper 15 through the fine aluminum material pipeline 23 from the bottom of the screen. The fine aluminum material and dust no longer enter the aluminum liquid well of the furnace for melting. Because the volume of the fine aluminum material is small and the temperature of the aluminum liquid well of the furnace is high, the fine aluminum material will be lost after entering. The dust enters the aluminum liquid well, and the aluminum liquid will produce aluminum slag, which will reduce the recovery rate of the aluminum material and reduce the economic benefits of the enterprise. The fine aluminum material and dust after screening enter the fine aluminum material hopper, and other process recovery is performed later, which improves the economic benefits of the enterprise.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In the present utility model, all terms related to directions such as "upper end", "lower end", "front end", "rear end", "left end", "right end", "left side", "right side", "up", and "down" are intended to explain the structure and technical solutions of the present utility model, but do not limit the structure and technical solutions of the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An aluminum material preheating and combustion prevention and automatic material unloading and screening device, comprising an aluminum material preheating and combustion prevention unit and an automatic material unloading and screening unit, characterized in that: The aluminum material preheating and combustion prevention unit comprises a feed inlet sealing box (1), an exhaust gas outlet (2), an aluminum material inlet (3), a feed pipe (4), a drying drum (5), a discharge port sealing box (6), a furnace hot air pipe (7), a furnace hot air inlet (8) and an aluminum material outlet (9). The feed inlet sealing box (1) and the discharge port sealing box (6) are respectively arranged at both ends of the drying drum (5). The feed inlet sealing box (1) is provided with an exhaust gas outlet (2), and the discharge port sealing box (6) is provided with a furnace hot air pipe (7). The automatic unloading and screening unit comprises an upper pneumatic flap valve (10), an aluminum material temporary storage bin (11), and a lower pneumatic flap valve (12). ), a vibrating feeder (13), an aluminum fine material pipeline (23) and an aluminum fine material hopper (15), the upper pneumatic flap valve (10) and the lower pneumatic flap valve (12) both include a flap shaft (17), a flap valve (18), a flap bearing (19) and a flap cylinder (20), the flap cylinder (20) is connected to the flap shaft (17), flap bearings (19) are provided at both ends of the flap shaft (17), the flap valve (18) is welded to the flap shaft (17), when the flap cylinder (20) is extended or retracted, the flap cylinder (20) drives the flap shaft (17) to rotate, and the flap shaft (17) drives the flap valve (18) to rotate, thereby realizing the valve plate flipping action.

2. The aluminum material preheating, combustion prevention and automatic material screening device according to claim 1 is characterized in that: The vibrating feeder (13) is arranged below the lower pneumatic flap valve (12), and a vibrating motor (22) is arranged below the vibrating feeder (13). Under the action of the vibrating motor (22), the coarse aluminum material on the vibrating feeder screen (21) enters the aluminum liquid well (25) of the furnace through the coarse aluminum material pipeline (24), and the fine aluminum material and dust on the vibrating feeder screen (21) enter the fine aluminum material hopper (15) through the fine aluminum material pipeline (23).

3. The aluminum material preheating, combustion prevention and automatic material screening device according to claim 1 is characterized in that: The drying drum (5) is provided with an aluminum material inlet (3) at one end and an aluminum material outlet (9) at the other end. The aluminum material enters the drying drum (5) from the aluminum material inlet (3) through a feed pipe (4). The hot air from the kiln enters the drying drum (5) from the aluminum material outlet (9) through a hot air pipe (7). The preheated smoke is discharged from the exhaust gas outlet (2) at the aluminum material inlet (3) through a fan.

4. The aluminum material preheating, combustion prevention and automatic material screening device according to claim 1 is characterized in that: A drying drum bracket (16) is provided at the lower end of the drying drum (5); and an automatic unloading and screening device bracket (14) is provided at the discharge end of the drying drum.

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