CN220659185U

CN220659185U - Preheating device of molten aluminum pouring die

Info

Publication number: CN220659185U
Application number: CN202322294730.4U
Authority: CN
Inventors: 苏元如; 陈进伟
Original assignee: Fuzhou Zhengyuan Aluminum Industry Co ltd
Current assignee: Fuzhou Zhengyuan Aluminum Industry Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-03-26
Anticipated expiration: 2033-08-25

Abstract

The application relates to the technical field of molten aluminum pouring and discloses a preheating device of a molten aluminum pouring die, which comprises two gas delivery pipes, wherein one gas delivery pipe is used for delivering fuel gas, and the other gas delivery pipe is used for delivering combustion-supporting gas reacted with the fuel gas; the flame spraying seat is provided with a mixing cavity, the mixing cavity is communicated with the outside of the flame spraying seat, the flame spraying seat is simultaneously connected with two gas transmission pipes, and the mixing cavity is simultaneously communicated with the two gas transmission pipes. The aluminum slag in the distribution head can be reduced.

Description

Preheating device of molten aluminum pouring die

Technical Field

The application relates to the technical field of molten aluminum pouring, in particular to a preheating device of a molten aluminum pouring die.

Background

When the aluminum water is poured and formed, the aluminum water pouring die is used for distributing the aluminum water, so that the aluminum water enters different casting cavities of the casting die.

Referring to fig. 1, the structure of the molten aluminum pouring mold comprises a tank body 15, wherein a flow cavity 16 for molten aluminum to flow is recessed in the tank body 15, and a plurality of distributing heads 17 communicated with the flow cavity 16 are arranged at the bottom of the tank body 15. In use, the trough body 15 is suspended above the casting mould so that the distribution heads 17 correspond to the casting cavities of the casting mould, then molten aluminum is fed into the flow cavities 16, and the molten aluminum enters different flow cavities 16 through different distribution heads 17.

For the above related art, when the molten aluminum passes through the distribution head 17, the distribution head 17 at normal temperature is cooled to form aluminum slag, and the aluminum slag adheres to the inner wall of the distribution head 17, which affects the flow of the subsequent molten aluminum and wastes the molten aluminum resources.

Disclosure of Invention

In order to reduce aluminum slag in a distribution head, the application provides a preheating device of an aluminum water pouring die.

The application provides a preheating device of aluminium water pouring mould adopts following technical scheme:

the preheating device of the molten aluminum pouring die is provided with two gas delivery pipes, wherein one gas delivery pipe is used for delivering fuel gas, and the other gas delivery pipe is used for delivering combustion-supporting gas reacted with the fuel gas;

the flame spraying seat is provided with a mixing cavity, the mixing cavity is communicated with the outside of the flame spraying seat, the flame spraying seat is simultaneously connected with two gas transmission pipes, and the mixing cavity is simultaneously communicated with the two gas transmission pipes.

Through adopting above-mentioned technical scheme, will transmit gas and combustion-supporting gas through the gas-supply pipe, make gas and combustion-supporting gas get into in the flame holder and mix, fire in the flame holder, can ignite the mixed gas promptly, exothermic in order to heat the distribution head through burning the mixed gas, increase the temperature of distribution head, the difficult aluminium sediment that produces in the distribution head of aluminium water when making the mould pour.

Optionally, the flame spraying seats are provided with a plurality of gas transmission pipes which are simultaneously communicated with all the flame spraying seats.

Through adopting above-mentioned technical scheme, a plurality of flame projecting seats can improve the heating scope, and gas-supply pipe and all flame projecting seats intercommunication can improve the gas-supply efficiency, improve the degree of convenience of gas-supply.

Optionally, a path of one gas pipe for delivering gas to the flame spraying seat is intersected with a path of the other gas pipe for delivering gas to the flame spraying seat.

By adopting the technical scheme, the gas transmission paths of the two gas transmission pipes are crossed, so that the gas enters the flaming seat to collide with each other, and the gas is easier to mix.

Optionally, the flame spraying seat is provided with a plurality of mixing plates in the mixing cavity, and a channel for the zigzag flow of gas is formed between the mixing plates.

Through adopting above-mentioned technical scheme, the air current is tortuous to flow between the mixed board, can further make gas mix, improves the combustion effect of mixed gas.

Optionally, a connecting rod is connected between the two air delivery pipes.

Through adopting above-mentioned technical scheme, the connecting rod can be with two gas-supply pipes connection into a whole to improve the stability of two gas-supply pipes.

Optionally, a ventilation nozzle is connected between the air pipe and the flame spraying seat, the ventilation nozzle is communicated with the air pipe and the flame spraying seat, and an adjusting structure is arranged on the ventilation nozzle and is used for communicating or cutting off a communication path of the air pipe and the flame spraying seat.

Through adopting above-mentioned technical scheme, the communication path between regulation structure control gas-supply pipe and the flame projecting seat to can control whether gas gets into in the flame projecting seat, and regulation structure sets up on the air cock, does not influence the gaseous transport of other flame projecting seats.

Optionally, the adjusting structure includes first seat, second seat and rotation knob, first seat connect in the air vent mouth, first seat with have the removal passageway that supplies the air current to pass through between the air vent mouth inner wall, the second seat rotate connect in the air vent mouth, rotation knob rotates the cover and locates the air vent mouth outer wall, just rotation knob with the second seat links to each other, rotation knob rotates and drives the second seat rotates, in order to with the removal passageway is opened or is closed.

Through adopting above-mentioned technical scheme, rotate the knob through the rotation and rotate the second seat, make the second seat open or close the removal passageway to realize the intercommunication or the interception to gas-supply pipe and flame projecting seat intercommunication route fast.

Optionally, the ventilation nozzle thread sleeve is provided with a fastening seat, and one side of the fastening seat facing the rotation knob is provided with a rubber layer.

Through adopting above-mentioned technical scheme, through with the fastening seat screw thread remove to rubber layer butt in the knob of turning, reduce the possibility of turning the knob pivoted, stability when improving the knob location of turning.

In summary, the present application includes at least one of the following beneficial effects:

1. the gas and the combustion-supporting gas are conveyed into the flaming cylinder through the gas conveying pipe to be mixed, so that the mixed gas can be ignited in the flaming seat to release heat during combustion, the distribution head of the aluminum casting mold is heated, and the preheated distribution head can reduce aluminum slag when aluminum flows through;

2. the two gas delivery pipes cross with each other in the gas delivery path in the flame spraying seat, so that the fuel gas and the combustion-supporting gas collide with each other when entering the flame spraying seat, and are easier to mix.

Drawings

Fig. 1 is a schematic structural view of a related art;

FIG. 2 is a schematic view of the usage state of the embodiment of the present application;

FIG. 3 is a schematic structural view of an embodiment of the present application;

FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;

FIG. 5 is a schematic view of an exploded construction of a vent nozzle according to an embodiment of the present application;

fig. 6 is a cross-sectional view of a flame holder according to an embodiment of the present application.

Reference numerals illustrate: 1. a gas pipe; 101. a gas pipe; 102. a combustion-supporting air pipe; 2. a flame spraying seat; 3. a mixing chamber; 4. a mixing plate; 5. a connecting rod; 6. an aeration nozzle; 7. an adjustment structure; 71. a first seat; 72. a second seat; 73. rotating a knob; 8. a moving channel; 9. a fastening seat; 10. a rubber layer; 11. a communication chamber; 12. an extension tube; 13. a travel groove; 14. a travel block; 15. a tank body; 16. a flow chamber; 17. a dispensing head.

Detailed Description

The present application is described in further detail below in conjunction with figures 2-6.

The embodiment of the application discloses a preheating device of aluminum water pouring mould. Referring to fig. 2, the preheating device of the molten aluminum pouring mold comprises two gas pipes 1 and two flame spraying seats 2, wherein the gas pipes 1 are hard pipelines, and the flame spraying seats 2 are simultaneously communicated with the two gas pipes 1.

Referring to fig. 3, one gas pipe 1 of the two gas pipes 1 is a gas pipe 101, and the other gas pipe 1 is a combustion-supporting gas pipe 102. The gas pipe 101 is closed at two ends far away from each other, and the other end is communicated with gas equipment, such as a natural gas cylinder, a manual gas cylinder and the like, for transmitting gas, and the gas equipment in this embodiment is a natural gas cylinder. The two ends of the combustion-supporting air pipe 102 far away from each other are closed, and the other end is communicated with combustion-supporting equipment, such as an oxygen cylinder, a chlorine cylinder and the like, for transmitting the combustion-supporting gas.

Referring to fig. 4 and 5, the ventilation nozzles 6 are fixed to both the gas delivery pipes 1, and the ventilation nozzles 6 are made of a hard metal material. The ventilation nozzle 6 is provided with a communication cavity 11 penetrating through two ends of the ventilation nozzle 6, and one end of the ventilation nozzle 6 extends into the air delivery pipe 1 so that the communication cavity 11 is communicated with the air delivery pipe 1.

The flame holder 2 has a mixing chamber 3 with an upward opening, in this embodiment, the flame holder 2 is fixedly connected to the ventilation nozzle 6 of the combustion-supporting air pipe 102, and the mixing chamber 3 is communicated with the combustion-supporting air pipe 102. The end of the gas nozzle 6 of the gas pipe 101 far away from the gas pipe 101 is connected and communicated with an extension pipe 12, the extension pipe 12 is a hose made of metal, corrugated, rubber or plastic and the like, the end of the extension pipe 12 far away from the gas nozzle 6 is connected to the flame spraying seat 2, and the extension pipe 12 is communicated with the mixing cavity 3.

When the valve of the natural gas cylinder and the valve of the oxygen cylinder are opened, natural gas and oxygen enter the mixing cavity 3 of the flaming seat 2 through the two gas pipes 1 respectively, at the moment, the mixing cavity 3 of the flaming seat 2 is ignited, the natural gas and the oxygen react in a mixing way to be flamed, the tank body 15 is hung to the position of the flaming seat 2, and the distribution head 17 can be heated through flame.

In order to keep the flame spraying seat 2 in an upwardly opened state, in this embodiment, the two air pipes 1 are parallel to each other and are abutted against the ground, and a connecting rod 5 is fixedly connected between the two air pipes 1, and the connecting rod 5 is provided with a plurality of air pipes along the extending direction of the length of the air pipes 1, so that the two air pipes 1 and the connecting rod 5 form a frame structure, thereby the air pipes 1 are not easy to shake, and the flame spraying seat 2 is not easy to shake and misplacement.

Referring to fig. 2 and 4, since the plurality of distribution heads 17 on the tank body 15 are distributed along the length direction of the tank body 15, in order to improve the heating efficiency of the distribution heads 17 by the flame holders 2, in some embodiments, optionally, the flame holders 2 have a plurality of flame holders 2 distributed along the length extending direction of the air pipes 1, and the positions and the number of the flame holders 2 are in one-to-one correspondence with the distribution heads 17, and the number and the positions of the ventilation nozzles 6 on each air pipe 1 are also in one-to-one correspondence with the flame holders 2, the air pipes 1 are simultaneously communicated with all the flame holders 2 through the ventilation nozzles 6, so that when the tank body 15 is lifted to the flame holders 2, each flame holder 2 can heat each distribution head 17 at the same time.

Referring to fig. 4, in order to enhance the mixing of natural gas with oxygen in the mixing chamber 3, in some embodiments, optionally, the paths of oxygen and natural gas into the mixing chamber 3 intersect. Specifically, in the present embodiment, the flame holder 2 is cylindrical with its axis extending in the vertical direction, and the ventilation nozzle 6 of the combustion-supporting gas pipe 102 is located at the bottom of the flame holder 2, and oxygen enters the mixing chamber 3 from the bottom of the flame holder 2 in the vertical direction. One end of the extension pipe 12, which is far away from the gas pipe 101, is connected to the side of the burner block 2 and is close to the bottom of the burner block 2, and natural gas enters the mixing chamber 3 in a horizontal direction so that the natural gas collides with oxygen while entering the mixing chamber 3, thereby assisting the mixing of the natural gas and the oxygen.

Referring to fig. 6, further, the flame holder 2 is fixed with a plurality of mixing plates 4 in the mixing chamber 3, the plurality of mixing plates 4 are spirally distributed on the inner wall of the mixing chamber 3 along the axis direction of the flame holder 2, the projections of all mixing plates 4 along the axis direction of the flame holder 2 have overlapped parts, and a space for air flow to pass through is arranged between the mixing plates 4 and the opposite inner wall of the mixing chamber 3. The natural gas and oxygen enter the mixing cavity 3 to move upwards, and are blocked by the mixing plate 4 to move upwards in a meandering way, so that the moving path length of the air flow is increased, and the air flow is reversed in the moving process, so that the air flow is further mixed.

Referring to fig. 5, in addition, the tank body 15 may block some of the distribution heads 17 according to the number of cast aluminum when in use, and the blocked distribution heads 17 do not need to be heated, so in order to reduce unnecessary energy consumption, each ventilation nozzle 6 is provided with an adjusting structure 7, and the adjusting structure 7 acts in the communication cavity 11 to open or shut off the flow path of the air supply flow of the ventilation nozzle 6.

Specifically, the adjusting structure 7 includes a first seat 71, a second seat 72, and a rotation knob 73. The aeration nozzle 6 is in a cylinder shape with an axis extending along the vertical direction, the first seat 71 is fixed in the aeration nozzle 6, the first seat 71 is in an arch plate-shaped structure, the arc of the first seat 71 is fixedly attached to the inner wall of the communication cavity 11, and the arc of the arch of the first seat 71 is larger than a semicircle and is a major arc. The space between the chord of the first seat 71 and the inner wall of the communication cavity 11 is a moving channel 8, and the air flow entering the aeration nozzle 6 from the air delivery pipe 1 flows into the flame spraying cylinder through the moving channel 8.

The second seat 72 is also located in the aeration nozzle 6 and has a semicircular plate structure with an outer diameter consistent with an inner diameter of the aeration nozzle 6. The second seat 72 is coaxially rotated in the ventilation nozzle 6, and the upper surface of the second seat 72 is attached to the lower surface of the first seat 71. The rotating knob 73 is coaxially and rotatably sleeved on the outer wall of the aeration nozzle 6, and the position of the rotating knob 73 corresponds to that of the second seat 72.

The outer side wall of the aeration nozzle 6 is provided with a travel groove 13 penetrating through the inner side and the outer side of the aeration nozzle 6, the travel groove 13 extends along the circumferential direction of the aeration nozzle 6, and the extension length of the travel groove 13 is half of the circumferential length of the aeration nozzle 6. The inner wall of the rotating knob 73 is provided with a travel block 14 which slides in the travel groove 13 along the circumferential direction of the ventilation nozzle 6, and the travel block 14 is fixedly connected to the outer circumferential wall of the second seat 72 at the same time, so that when the rotating knob 73 rotates, the second seat 72 is driven to rotate in the ventilation nozzle 6 through the travel block 14.

When the turning knob 73 is turned until the stroke block 14 abuts against one end wall of the stroke groove 13, the second seat 72 closes the moving passage 8, so that the path of the air flow supplied from the air nozzle 6 to the inside of the flame projecting seat 2 is cut off. When the turning knob 73 is turned until the travel block 14 abuts against the other end wall of the travel groove 13, the second seat 72 is turned to open the moving passage 8, so that the air flow can enter the flame spraying cylinder through the air passing nozzle 6.

In order to improve the stability of the rotation knob 73, in some embodiments, optionally, the ventilation nozzle 6 is sleeved with a fastening seat 9 on both the upper side and the lower side of the adjustment knob, the fastening seat 9 is in a ring shape coaxially arranged with the ventilation nozzle 6, a rubber layer 10 is fixed on one side of the fastening seat 9 facing the adjustment knob, and the rubber layer 10 has certain elasticity and deformability. After the rotation knob 73 is rotated, the fastening seat 9 is moved by threads, and the rubber layers 10 on the fastening seat 9 on the upper side and the lower side of the adjusting knob are respectively abutted against the upper side and the lower side of the adjusting knob, so that the rotation of the adjusting knob is limited, the rubber layers 10 are abutted against the outer wall of the silt vent nozzle 6, and the tightness of the rotation knob 73 between the adjusting knobs is improved.

The implementation principle of the preheating device of the aluminum water pouring die provided by the embodiment of the application is as follows: the tank body 15 is hung above the preheating device, the flaming seat 2 corresponds to the distribution head 17, then the natural gas cylinder and the oxygen cylinder are opened, natural gas and oxygen enter the flaming seat 2 through the gas pipe 1 to be mixed, the mixed gas is ignited in the flaming seat 2 to burn, namely, the distribution head 17 is heated by heat generated by burning.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a preheating device of aluminium water pouring mould which characterized in that: comprising the steps of (a) a step of,

the gas delivery pipes (1) are provided with two gas delivery pipes, wherein one gas delivery pipe (1) is used for delivering fuel gas, and the other gas delivery pipe (1) is used for delivering combustion-supporting gas which reacts with the fuel gas;

the flame spraying seat (2) is provided with a mixing cavity (3), the mixing cavity (3) is communicated with the outside of the flame spraying seat (2), the flame spraying seat (2) is simultaneously connected with two air delivery pipes (1), and the mixing cavity (3) is simultaneously communicated with two air delivery pipes (1).

2. The preheating device for an aluminum casting mold according to claim 1, wherein: the gas pipe (1) is simultaneously communicated with all the flaming seats (2).

3. The preheating device for an aluminum casting mold according to claim 1, wherein: the gas transmission path of one gas transmission pipe (1) to the flame spraying seat (2) is intersected with the gas transmission path of the other gas transmission pipe (1) to the flame spraying seat (2).

4. The preheating device for an aluminum casting mold according to claim 1, wherein: the flame spraying seat (2) is provided with a plurality of mixing plates (4) in the mixing cavity (3), and a channel for the zigzag flow of gas is formed between the mixing plates (4).

5. The preheating device for an aluminum casting mold according to claim 1, wherein: a connecting rod (5) is connected between the two gas delivery pipes (1).

6. The preheating device for an aluminum casting mold according to claim 1, wherein: the gas pipe is characterized in that a ventilation nozzle (6) is connected between the gas pipe (1) and the flame spraying seat (2), the ventilation nozzle (6) is communicated with the gas pipe (1) and the flame spraying seat (2), the ventilation nozzle (6) is provided with an adjusting structure (7), and the adjusting structure (7) is used for communicating or cutting off a communication path of the gas pipe (1) and the flame spraying seat (2).

7. The preheating device for the molten aluminum casting mold according to claim 6, wherein: the adjusting structure (7) comprises a first seat (71), a second seat (72) and a rotating knob (73), wherein the first seat (71) is connected in the ventilation nozzle (6), a moving channel (8) for air to pass through is arranged between the first seat (71) and the inner wall of the ventilation nozzle (6), the second seat (72) is rotationally connected in the ventilation nozzle (6), the rotating knob (73) is rotationally sleeved on the outer wall of the ventilation nozzle (6), the rotating knob (73) is connected with the second seat (72), and the rotating knob (73) rotationally drives the second seat (72) to rotate so as to open or close the moving channel (8).

8. The preheating device for an aluminum casting mold according to claim 7, wherein: the ventilation nozzle (6) is sleeved with a fastening seat (9) in a threaded mode, and a rubber layer (10) is arranged on one side, facing the rotary knob (73), of the fastening seat (9).