CN211999860U

CN211999860U - Online degassing unit of aluminium liquid

Info

Publication number: CN211999860U
Application number: CN202020721118.4U
Authority: CN
Inventors: 刘敏; 刘瑞国
Original assignee: Suzhou Zhonglianzhongxin Science And Technology Co ltd
Current assignee: Suzhou Zhonglianzhongxin Science And Technology Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-11-24
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses an online degassing unit of aluminium liquid, including degassing unit and gas distribution unit, the degassing unit includes the degassing box, the degassing box is the insulation can, and it includes box and case lid, the box is equipped with the aluminium mouth that advances and goes out the aluminium mouth that is higher than its inside aluminium liquid level, the box still is equipped with the air inlet that is less than its inside aluminium liquid level, the air inlet is equipped with air brick, gas distribution unit with the air inlet intercommunication. The utility model discloses an online degassing unit of aluminium liquid, degassing tank are equipped with the air inlet that is less than its inside aluminium liquid level, and the air inlet sets up air brick, and under the circumstances of letting in gas, aluminium liquid can not spill, can fully contact with the gas in the aluminium liquid simultaneously, simple structure, the design is unique, and degassing effect is good, long service life; the device has no mechanical transmission device, does not need maintenance, does not need spare parts, and can save the use cost; meanwhile, the flow of the introduced gas is controllable.

Description

Online degassing unit of aluminium liquid

Technical Field

The utility model relates to a degasification field, concretely relates to online degassing unit of aluminium liquid.

Background

The solubility of hydrogen in aluminum increases with increasing temperature. When liquid aluminum and solid aluminum coexist, the solubility of hydrogen in the solid aluminum is only 1/20 of that of the liquid aluminum at the same temperature, so that if the hydrogen does not escape in time when the liquid aluminum is solidified, a large amount of air holes, air holes and other defects are generated in a casting, thereby forming a line belt in the casting calendering process, loosening the structure of a finished product and a plate, reducing the air tightness, reducing the strength and the toughness and causing serious consequences and hidden troubles.

The degassing device used at present is used for degassing a graphite rotor, the graphite rotor is placed in aluminum liquid, N2, Ar2 or Cl2 are introduced through a hole in the middle of the graphite rotor, and the rotor breaks the introduced gas into small bubbles to carry out hydrogen. Such graphite rotors are often easily damaged and expensive, so that it is imperative to develop a new on-line degassing apparatus.

Disclosure of Invention

The utility model aims at providing an online degassing unit of aluminium liquid on guaranteeing the basis of degasification effect, reduces the maintenance cost, improves production efficiency.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides an online degassing unit of aluminium liquid, includes degassing unit and gas distribution unit, the degassing unit includes the degassing box, the degassing box is the insulation can, and it includes box and case lid, the box is equipped with the aluminium mouth of advancing and the aluminium mouth that is higher than its inside aluminium liquid level, the box still is equipped with the air inlet that is less than its inside aluminium liquid level, the air inlet is equipped with air brick, gas distribution unit with the air inlet intercommunication.

Further, the aluminum inlet and the aluminum outlet are arranged on the side wall of the box body, and the air inlet is arranged on the bottom wall of the box body.

Further, the gas distribution unit comprises a gas source and a flow regulating system, and the gas source, the flow regulating system and the degassing tank are sequentially connected.

Further, the box body comprises a non-stick aluminum inner container, a first steel shell and a first heat preservation layer, the non-stick aluminum inner container and the first steel shell are arranged inside and outside, the first heat preservation layer is arranged between the non-stick aluminum inner container and the first steel shell, the box cover comprises a second steel shell and a second heat preservation layer, and the second heat preservation layer is arranged on the inner side of the second steel shell.

Furthermore, the non-stick aluminum inner container is a poured inner container, each of the first steel shell and the second steel shell comprises section steel and a steel plate fixed on the section steel, and the first heat-insulating layer and the second heat-insulating layer are both heat-insulating fiber plates.

Furthermore, the heating device also comprises a heating unit, wherein the heating unit comprises a heating component and a temperature measuring component which are arranged in the degassing box and fixed on the box cover, and the heating component and the temperature measuring component are connected with an electrical control system.

Furthermore, the heating part is a silicon carbide rod, and the temperature measuring part is a thermocouple.

Further, the electric control system adopts a silicon controlled rectifier.

Furthermore, the side wall of the box body is also provided with an emptying port close to the bottom wall of the box body, and the emptying port is provided with a plug component.

Furthermore, the plug part comprises a plug and a fiber cap coated on the plug.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model discloses an online degassing unit of aluminium liquid, degassing tank are equipped with the air inlet that is less than its inside aluminium liquid level, and the air inlet sets up air brick, and under the circumstances of letting in gas, aluminium liquid can not spill, can fully contact with the gas in the aluminium liquid simultaneously, simple structure, the design is unique, and degassing effect is good, long service life; the device has no mechanical transmission device, does not need maintenance, does not need spare parts, and can save the use cost; meanwhile, the flow of the introduced gas is controllable.

Drawings

FIG. 1 is a front view of an on-line degassing device for molten aluminum disclosed by the present invention;

FIG. 2 is a side view of the aluminum liquid on-line degassing device disclosed by the utility model.

100, a degassing unit; 110. a box body; 111. an aluminum inlet; 112. an aluminum outlet; 113. air permeable bricks; 114. a plug; 115. fiber caps; 120. a box cover; 101. the aluminum liner is not stuck; 102. a first steel outer shell; 103. a first insulating layer; 104. a second steel shell; 105. a second insulating layer; 200. a gas distribution unit; 310. a heating member; 320. a temperature measuring part; 330. an electrical control system.

Detailed Description

The invention will be further described with reference to the accompanying drawings and examples:

example one

Referring to fig. 1 and 2, as shown in the legend thereof, the aluminum liquid online degassing device comprises a degassing unit 100 and a gas distribution unit 200, wherein the degassing unit 100 comprises a degassing tank, the degassing tank is an insulation tank and comprises a tank body 110 and a tank cover 120, the tank body 110 is provided with an aluminum inlet 111 and an aluminum outlet 112 which are higher than the liquid level of aluminum liquid inside the tank body, the tank body 110 is further provided with a gas inlet which is lower than the liquid level of aluminum liquid inside the tank body, the gas inlet is provided with a gas permeable brick 113, and the gas distribution unit 200 is communicated with the gas inlet.

In a preferred embodiment of this embodiment, the aluminum inlet 111 and the aluminum outlet 112 are disposed on a side wall of the box body 110, and the air inlet is disposed on a bottom wall of the box body 110.

In the preferred embodiment of the present embodiment, the gas distribution unit 200 includes a gas source (not shown) and a flow regulating system (not shown), which are connected in sequence.

In the preferred embodiment of this embodiment, the box body 110 includes a non-stick aluminum inner container 101, a first steel outer shell 102, and a first thermal insulation layer 103, the non-stick aluminum inner container 101 and the first steel outer shell 102 are disposed inside and outside, the first thermal insulation layer 103 is disposed between the non-stick aluminum inner container 101 and the first steel outer shell 102, the box cover 120 includes a second steel outer shell 104 and a second thermal insulation layer 105, and the second thermal insulation layer 105 is disposed inside the second steel outer shell 104.

In the preferred embodiment of the present invention, the non-stick aluminum liner 101 is a cast liner, each of the first and

second steel shells

102 and 104 includes a section steel (not shown) and a steel plate (not shown) fixed on the section steel, and the first and second heat-insulating

layers

103 and 105 are heat-insulating fiber plates.

In the preferred embodiment of this embodiment, the heating unit further includes a heating unit, the heating unit includes a heating component 310 and a temperature measuring component 320, which are disposed in the degassing tank and fixed on the tank cover 120, and the heating component 310 and the temperature measuring component 320 are connected to an electrical control system 330.

In a preferred embodiment of this embodiment, the heating component 310 is a silicon carbide rod, and the temperature measuring component 320 is a thermocouple.

In the preferred embodiment of this embodiment, the electrical control system 330 is a thyristor.

In a preferred embodiment of this embodiment, the sidewall of the box body 110 is further provided with an evacuation port near the bottom wall thereof, and the evacuation port is provided with a plug member.

In a preferred embodiment of this embodiment, the plug member includes a plug 114 and a fiber cap 115 covering the plug 114.

In the above, the box body and the box cover are fixed by the connecting bolt; the gas distribution unit is connected with the air brick at the bottom of the degassing box body through a stainless steel pipe; an electrical control system controls the temperature inside the degassing tank. The gas permeable bricks can pass through N2, Ar2 and Cl 2. The gas distribution unit may control the flow of gas through the gas permeable bricks. The temperature control of the electric control system adopts silicon controlled rectifier to adjust power.

The invention provides an on-line degassing device for aluminum liquid, which comprises the following concrete implementation steps:

the method comprises the steps of firstly manufacturing a first steel shell, welding profile steel and a steel plate into a whole with an opening on one side, paving a fiber insulation board inside the first steel shell, pouring an aluminum-free pouring material, simultaneously installing air bricks and plug parts, then installing a prefabricated box cover on a box body, connecting the air bricks and a gas distribution unit by using stainless steel pipes, and connecting a heating part, a temperature measurement part and an electrical control system by using cables. And finishing the manufacture and installation of the aluminum liquid on-line degassing device.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an online degassing unit of aluminium liquid, includes degassing unit and gas distribution unit, the degassing unit includes the degassing box, the degassing box is the insulation can, and it includes box and case lid, the box is equipped with the aluminium mouth of advancing and goes out the aluminium mouth that is higher than its inside aluminium liquid level, its characterized in that, the box still is equipped with the air inlet that is less than its inside aluminium liquid level, the air inlet is equipped with air brick, gas distribution unit with the air inlet intercommunication.

2. The on-line degassing device for aluminum liquid as defined in claim 1, wherein said aluminum inlet and said aluminum outlet are provided on the side wall of said box body, and said air inlet is provided on the bottom wall of said box body.

3. The aluminum liquid online degassing device of claim 1, wherein the gas distribution unit comprises a gas source and a flow regulating system, and the gas source, the flow regulating system and the degassing tank are connected in sequence.

4. The aluminum liquid online degassing device of claim 1, wherein the box body comprises a non-stick aluminum inner container, a first steel outer shell and a first heat preservation layer, the non-stick aluminum inner container and the first steel outer shell are arranged inside and outside, the first heat preservation layer is arranged between the non-stick aluminum inner container and the first steel outer shell, the box cover comprises a second steel outer shell and a second heat preservation layer, and the second heat preservation layer is arranged inside the second steel outer shell.

5. The aluminum liquid online degassing device of claim 4, wherein the non-stick aluminum inner container is a cast inner container, each of the first steel outer shell and the second steel outer shell comprises section steel and a steel plate fixed on the section steel, and the first heat-insulating layer and the second heat-insulating layer are both heat-insulating fiber plates.

6. The on-line molten aluminum degassing device of claim 1 further comprising a heating unit, wherein the heating unit comprises a heating component and a temperature measuring component which are arranged in the degassing box and fixed on the box cover, and the heating component and the temperature measuring component are connected with an electrical control system.

7. The on-line degassing apparatus for molten aluminum of claim 6 wherein said heating member is a silicon carbide rod and said temperature measuring member is a thermocouple.

8. The on-line molten aluminum degassing device of claim 6 wherein said electrical control system employs a thyristor.

9. The on-line degassing device for aluminum liquid as defined in claim 1, wherein the side wall of said box body is further provided with a drain hole near the bottom wall thereof, said drain hole being provided with a plug member.

10. The on-line molten aluminum degassing device of claim 9 wherein the plug member comprises a plug and a fiber cap covering the plug.