CN105331790A - Continuous aluminum magnesium alloy thermal treatment furnace - Google Patents

Abstract

The invention relates to a continuous aluminum magnesium alloy thermal treatment furnace. The continuous aluminum magnesium alloy thermal treatment furnace comprises a pretreatment chamber, a gas heating furnace, a cooling chamber and a material basket. The pretreatment chamber, the gas heating furnace and the cooling chamber are sequentially connected and provided with furnace doors respectively. The pretreatment chamber, the gas heating furnace and the cooling chamber are provided with guide rails for the material basket to move respectively. The pretreatment chamber, the gas heating furnace and the cooling chamber are provided with furnace pipes respectively. A combustion chamber is arranged on the outer side of the gas heating furnace. The material basket is used for containing aluminum magnesium alloy. The pretreatment chamber and the cooling chamber are full of nitrogen in the work state. The problem that thermal treatment and machining of aluminum magnesium alloy are not continuous is solved, and the aluminum magnesium alloy thermal treatment furnace has the beneficial effects of being high in automation degree, simple in technology and equipment structure and the like.

Description

A continuous aluminum-magnesium alloy heat treatment furnace

Technical field:

The invention relates to the field of metal heat treatment, in particular to a continuous aluminum-magnesium alloy heat treatment furnace.

Background technique:

The effective and continuous heat treatment process of aluminum-magnesium alloy is an important part to be solved in the prior art. The existing heat treatment is mainly to dry the material first, and then heat the material in a heating furnace and fill it with nitrogen for heat treatment. After the heat treatment, the material is taken out and placed in the air to cool naturally. The whole process of loading and unloading the material consumes a lot of man-hours, and when the material is cooling, the heat naturally emitted can be used to dry the material. This is the existing A problem that has not been considered in the technology. On the other hand, the existing pretreatment chamber and the heating furnace are placed separately, which increases the waste of space and increases the consumption of resources.

Invention content:

The object of the present invention is to provide a continuous aluminum-magnesium alloy heat treatment furnace aiming at the deficiencies of the prior art, which realizes continuous and automatic heat treatment of aluminum-magnesium alloys, has high processing efficiency, simple process and corresponding structure, and low heat energy loss. High utilization rate, energy saving and environmental protection.

Technical solutions of the present invention are as follows:

The invention provides a continuous aluminum-magnesium alloy heat treatment furnace, which includes a pretreatment chamber, a gas heating furnace, a cooling chamber, a puller, a material basket and a gas heating unit. The chamber and the cooling chamber are placed at both ends of the gas heating furnace and communicate with the gas heating furnace respectively;

The pretreatment chamber includes a first furnace body, a first furnace liner and a first guide rail. The first feeding end of the pretreatment chamber is provided with a liftable first furnace door for sealing; it also includes a first pusher, which The pusher is used to push the material basket from the outside of the first furnace to the inside of the first furnace;

The gas-fired heating furnace includes a second furnace body, a second furnace liner and a second guide rail. The second feed end and the second discharge end of the second furnace body are respectively equipped with a liftable front furnace door and a rear furnace door. The guide rail is set at the bottom of the second furnace;

The cooling chamber includes a third furnace body, a third furnace liner and a third guide rail, and the third discharge end of the cooling chamber is provided with a liftable third furnace door for sealing;

The material basket enters from the first feeding end, passes through the first furnace, the second furnace and the third furnace along the first guide rail, the second guide rail and the third guide rail, and passes through the third discharge of the third furnace terminal launch;

As an improvement, the gas heating unit includes a combustion chamber equipped with a burner, a waste gas discharge pipe and a high-temperature flue gas introduction pipe; the combustion chamber is arranged on one side of the second furnace body, and it communicates with the second furnace body through the air inlet, and the waste gas is discharged The inlet end of the pipe communicates with the second furnace body, and the outlet end of the pipe extends into the combustion chamber.

As an improvement, the upper surfaces of the first guide rail, the second guide rail and the third guide rail are all located at the same level and adjacent to each other.

As an improvement, the air inlet is located on the side close to the second feed end, and the air outlet is located on the side close to the second discharge end.

As yet another improvement, the preheating temperature of the pretreatment chamber is in the range of 100°C to 200°C, the operating temperature of the gas heating furnace is in the range of 450°C to 500°C, and the heat treatment time is 1.5 to 4 hours.

As yet another improvement, the combustion chamber is horizontally provided with a first burner and a second burner, the first burner is set near the outlet end of the exhaust gas discharge pipe, and the second burner is set close to the air inlet location.

As yet another improvement, the material pulling machine is slidably connected with the third guide rail, and pulls the material basket from the inside of the third furnace to the outside of the third furnace.

As a further improvement, the top of the first furnace body is provided with a first nitrogen inlet and a first air outlet, and the first nitrogen inlet and the first air outlet are connected to the first furnace; the top of the third furnace body is provided with There is a third nitrogen inlet and a third air outlet, and the third nitrogen inlet and the third air outlet are connected to the third furnace.

As a further improvement, the cooling chamber is provided with an inlet of an exhaust fan, which is used to cool down the temperature of the third furnace by blasting.

As a further improvement, the pretreatment chamber and the cooling chamber are filled with nitrogen gas under working conditions.

The beneficial effects of the present invention are:

The pretreatment chamber, gas heating furnace and cooling chamber are integrated into a complete metal heat treatment furnace. The pretreatment chamber, gas heating furnace and cooling chamber are connected in sequence. According to the corresponding processing steps, the orderly and one-by-one push of the baskets is effectively controlled. , realize the continuity and order of aluminum-magnesium alloy heat treatment, stable operation, high processing efficiency, and are suitable for automation and assembly line operations; the present invention has high automation, simplified process, simple equipment structure, high heat treatment efficiency and low energy consumption Etc.

Description of drawings:

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention one aluminum-magnesium alloy heat treatment furnace;

2 is a top view of an aluminum-magnesium alloy heat treatment furnace according to an embodiment of the present invention;

Fig. 3 is a diagram of the internal gas flow of an aluminum-magnesium alloy heat treatment furnace according to Embodiment 1 of the present invention.

Description of symbols: 1. Pretreatment chamber, 10. First furnace body, 11. First furnace liner, 12. First guide rail, 13. First feeding end, 14. First furnace door, 15. First pushing material Machine, 1a. the first nitrogen inlet, 1b. the first air outlet, 2. gas heating furnace, 2a. air inlet, 2b. air outlet, 20. the second furnace body, 21. the second furnace, 22. the first Two guide rails, 23. the second feed end, 24. the second discharge end, 25. the front furnace door, 26. the rear furnace door, 3. the cooling chamber, 30. the third furnace body, 31. the third furnace gall, 32. The third guide rail, 33. The third discharge end, 34. The third furnace door, 3a. The third nitrogen gas inlet, 3b. The third air outlet, 3c. The high-temperature flue gas introduction pipe, 4. The puller, 5. Material basket, 6. Gas heating unit, 61. Burner, 610. First burner, 611. Second burner, 62. Combustion chamber, 63. Exhaust gas discharge pipe, 64. High temperature flue gas introduction pipe, 65 . Air inlet, 66. Air inlet, 67. Outlet.

detailed description:

The following descriptions are only preferred embodiments of the present invention, and do not limit the scope of the present invention.

Embodiment one

Fig. 1 is the overall structural schematic diagram of the aluminum-magnesium alloy heat treatment furnace of the embodiment of the present invention; Fig. 2 is the top view of the aluminum-magnesium alloy heat treatment furnace of the embodiment of the present invention; Fig. 3 is the internal gas of the aluminum-magnesium alloy heat treatment furnace of the embodiment of the present invention flow diagram. As shown in Figure 1, Figure 2 and Figure 3, a continuous aluminum-magnesium alloy heat treatment furnace includes a pretreatment chamber 1, a gas heating furnace 2, a cooling chamber 3, a puller 4, a material basket 5 and a gas heating unit 6 , the material basket 5 is used to place the aluminum-magnesium alloy, which is characterized in that: the pretreatment chamber 1 and the cooling chamber 3 are placed at both ends of the gas heating furnace 2 and communicate with the gas heating furnace 2 respectively; the pretreatment chamber 1 Including the first furnace body 10, the first furnace chamber 11 and the first guide rail 12, the first feeding end 13 of the pretreatment chamber 1 is provided with a first furnace door 14 that can be lifted and lowered to play a sealing role; it also includes the first pusher machine 16, the pusher 16 is used to push the material basket 5 from the outside of the first furnace 11 to the inside of the first furnace 11; the gas heating furnace 2 includes a second furnace body 20, a second furnace 21 and the second guide rail 22, the second feed end 23 and the second discharge end 24 of the second furnace body 20 are respectively equipped with liftable front furnace door 25 and rear furnace door 26, and the second guide rail 22 is arranged on the second furnace the bottom of the furnace 21; the cooling chamber 3 includes a third furnace body 30, a third furnace chamber 31 and a third guide rail 32, and the third discharge end 33 of the cooling chamber 3 is provided with a liftable third furnace door 34, Sealing effect: the material basket 5 enters from the first feeding end 13, passes through the first furnace 11, the second furnace 21 and the third furnace along the first guide rail 12, the second guide rail 22 and the third guide rail 32 31, and released through the third discharge end 33 of the third furnace 31; the gas heating unit 6 includes a combustion chamber 62 equipped with a burner 61, a waste gas discharge pipe 63 and a high-temperature flue gas introduction pipe 64; the combustion chamber 62 It is arranged on one side of the second furnace body 20, and communicates with the second furnace body 20 through the air inlet 65, and the inlet end 66 of the exhaust gas discharge pipe 63 communicates with the second furnace body 20, and its outlet end 67 extends into the combustion chamber 62 Inside; the upper surfaces of the first guide rail 12, the second guide rail 22 and the third guide rail 32 are located at the same level and adjacent to each other; the air inlet 2a is located near the second feed end 23 On one side, the air outlet 2b is located on the side close to the second discharge end 24; the preheating temperature of the pretreatment chamber 1 is in the range of 100°C to 200°C, and the working temperature of the gas heating furnace 2 is 450°C In the range of ~500°C, the heat treatment time is 1.5 to 4 hours; the combustion chamber 62 is horizontally provided with a first burner 610 and a second burner 611, and the first burner 610 is arranged near the exhaust gas discharge pipe 63 At the position of the outlet end, the second burner 611 is arranged at a position close to the air inlet 65; the puller 4 is slidably connected with the third guide rail 32, and the material basket 5 is pulled out from the third furnace 31 To the outside of the third furnace 31; the top of the first furnace body 10 is provided with a first nitrogen inlet 1a and a first air outlet 1b, and the first nitrogen inlet 1a and the first air outlet 1b are connected to the first furnace 11; the top of the third furnace body 30 is provided with a third nitrogen inlet 3a and a third air outlet 3b, and the third nitrogen inlet 3a and the third air outlet 3b are connected to the third furnace 31; the cooling chamber 3 There is an inlet for the exhaust fan 36, used to cool down the temperature of the third furnace 31 in the form of air blast; the pretreatment chamber 1 and the cooling chamber 3 are filled with nitrogen gas in the working state.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (9)

1. a continuous aluminum magnesium alloy heat treatment furnace, comprise pretreatment chamber (1), gas-fired heater (2), cooling room (3), draw material machine (4), charging basket (5) and gas heating unit (6), this charging basket (5), for settling aluminum magnesium alloy, is characterized in that: described pretreatment chamber (1) and cooling room (3) are placed in the two ends of gas-fired heater (2) and communicate with gas-fired heater (2) respectively;

Described pretreatment chamber (1) comprises the first body of heater (10), the first flue (11) and the first guide rail (12), first feed end (13) of pretreatment chamber (1) is provided with liftable first fire door (14), seals; Also comprise the first pushing device (16), this pushing device (16) is for being pushed into the inside of the first flue (11) by the outside of the first flue (11) by charging basket (5);

Described gas-fired heater (2) comprises the second body of heater (20), the second flue (21) and the second guide rail (22), second feed end (23) of the second body of heater (20) and the second discharge end (24) are separately installed with liftable front fire door (25) and rear fire door (26), and the second guide rail (22) is arranged on the bottom of the second flue (21);

Described cooling room (3) comprises the 3rd body of heater (30), the 3rd flue (31) and the 3rd guide rail (32), 3rd discharge end (33) of cooling room (3) is provided with liftable 3rd fire door (34), seals;

Described charging basket (5) is entered by the first feed end (13), along the first guide rail (12), the second guide rail (22) and the 3rd guide rail (32) through the first flue (11), the second flue (21) and the 3rd flue (31), and release through the 3rd discharge end (33) of the 3rd flue (31);

Described gas heating unit (6) comprise be configured with burner (61) combustion chamber (62), exhaust emission tube (63) and high-temperature flue gas ingress pipe (64); Combustion chamber (62) is arranged on the side of the second body of heater (20), it is communicated with the second body of heater (20) by blast inlet (65), the inlet end (66) of exhaust emission tube (63) is communicated with the second body of heater (20), and its exit end (67) stretches in combustion chamber (62).

2. a kind of continuous aluminum magnesium alloy heat treatment furnace as claimed in claim 1, is characterized in that: the upper surface of described first guide rail (12), the second guide rail (22) and the 3rd guide rail (32) is all positioned at same level height and is adjacently mutually connected between the two.

3. a kind of continuous aluminum magnesium alloy heat treatment furnace as claimed in claim 1, it is characterized in that: described blast inlet (2a) is positioned at the side near the second feed end (23), described air outlet (2b) is positioned at the side near the second discharge end (24).

4. a kind of continuous aluminum magnesium alloy heat treatment furnace as claimed in claim 1, it is characterized in that: described pretreatment chamber (1) preheating temperature is in the scope of 100 DEG C ~ 200 DEG C, described gas-fired heater (2) working temperature is in the scope of 450 DEG C ~ 500 DEG C, and heat treatment time is 1.5 ~ 4 hours.

5. a kind of continuous aluminum magnesium alloy heat treatment furnace as claimed in claim 1, it is characterized in that: described combustion chamber (62) level is relatively set with the first burner (610) and the second burner (611), this first burner (610) is arranged on the position of the exit end near exhaust emission tube (63), and this second burner (611) is arranged on the position near being positioned at blast inlet (65).

6. a kind of continuous aluminum magnesium alloy heat treatment furnace as described in as arbitrary in claim 1 to 5, it is characterized in that: described in draw material machine (4) to coordinate with the 3rd guide rail (32) to be slidably connected, charging basket (5) is drawn out to the 3rd flue (31) outward by the 3rd flue (31).

7. a kind of continuous aluminum magnesium alloy heat treatment furnace as described in as arbitrary in claim 1 to 5, it is characterized in that: the top of described first body of heater (10) is provided with the first nitrogen and passes into mouth (1a), the first air vout (1b), and the first nitrogen passes into mouth (1a), the first air vout (1b) is communicated to the first flue (11); The top of described 3rd body of heater (30) is provided with the 3rd nitrogen and passes into mouth (3a), the 3rd air vout (3b), and the 3rd nitrogen passes into mouth (3a), the 3rd air vout (3b) is communicated to the 3rd flue (31).

8. a kind of continuous aluminum magnesium alloy heat treatment furnace as described in as arbitrary in claim 1 to 5, it is characterized in that: described cooling room (3) is provided with vacuum fan admission port (36), for the form by air blast, the 3rd flue (31) is lowered the temperature.

9. a kind of continuous aluminum magnesium alloy heat treatment furnace as described in as arbitrary in claim 1 to 5, is characterized in that: described pretreatment chamber (1) and cooling room (3) descend inside to be full of nitrogen in working order.