Gas pressure stabilizing device in sintering furnace

Abstract

The utility model relates to the technical field of sintering furnace equipment, and discloses a gas pressure stabilizing device in a sintering furnace, which comprises a liquid containing barrel used for containing liquid and provided with a gas inlet, a gas outlet and a liquid opening, and the gas outlet is positioned above the liquid level of the liquid in the liquid containing barrel; the air inlet pipe penetrates through the air inlet, one end of the air inlet pipe extends into the liquid containing barrel and is located below the liquid level of the liquid in the liquid containing barrel, and the other end of the air inlet pipe is used for being communicated with an exhaust port of the sintering furnace; the liquid level meter is arranged on the liquid containing barrel and is used for measuring the liquid level height of liquid in the liquid containing barrel; the air outlet pipe is communicated with the air outlet; and the liquid pipe is communicated with the liquid opening. The pressure in the sintering furnace can be more stably controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering furnace equipment technical field especially relates to a sintering furnace inner gas pressure stabilizing device. BACKGROUND

[0002] The intermediate frequency sintering furnace equipment is through the inductive coil to produce the high density magnetic force line, these magnetic force lines cut the tungsten crucible in the furnace, make it produce the heat, the intermediate frequency sintering furnace equipment has the advantages such as fast heating speed, heating is uniform, energy consumption is low, production efficiency is high, therefore is widely used in various industries.

[0003] In the tungsten rod sintering process, to prevent the oxidation of tungsten rod during sintering, and to ensure the volatilization of impurities in the furnace, hydrogen needs to be circulated in the sintering furnace, and different hydrogen flow rates are used at different sintering temperature stages to ensure volatilization.

[0004] However, under different hydrogen flow rates and different temperatures, the pressure in the sintering furnace is constantly changing. Currently, the valve control outlet gas quantity method is used to control the pressure in the furnace. However, this method of controlling the pressure in the furnace is unstable and cannot guarantee the stability of the sintering product quality. SUMMARY

[0005] The technical problem to be solved by the utility model is how to more stably control the pressure in the sintering furnace.

[0006] To solve the above technical problem, the utility model provides a sintering furnace inner gas pressure stabilizing device, which comprises: a liquid containing bucket for containing liquid, the liquid containing bucket has an air inlet, an air outlet and a liquid port, the air outlet is located above the liquid level of the liquid in the liquid containing bucket; an air inlet pipe penetrating the air inlet, one end of the air inlet pipe extends into the liquid containing bucket and is located below the liquid level of the liquid in the liquid containing bucket, the other end of the air inlet pipe is used to communicate with the exhaust port of the sintering furnace; a liquid level meter arranged on the liquid containing bucket and used to measure the liquid level of the liquid in the liquid containing bucket; an air outlet pipe in communication with the air outlet; and a liquid pipe in communication with the liquid port.

[0007] Further, the liquid level meter is located on the outer side wall of the liquid containing bucket, the upper end and the lower end of the liquid level meter are in communication with the inner cavity of the liquid containing bucket, the upper end of the liquid level meter is located above the liquid level of the liquid in the liquid containing bucket, and the lower end of the liquid level meter is located below the liquid level of the liquid in the liquid containing bucket.

[0008] Further, the liquid level meter is made of transparent material, and the side wall of the liquid level meter is provided with scale lines.

[0009] Further, valves are respectively arranged on the air inlet pipe, the air outlet pipe and the liquid pipe.

[0010] Furthermore, the liquid pipe is a three-way pipe, the first end of the liquid pipe is connected to the liquid port, the second end of the liquid pipe has a water inlet, and the third end of the liquid pipe has a sewage outlet.

[0011] Furthermore, the air inlet and the air outlet are both located at the upper end of the liquid storage barrel, and the liquid port is located at the bottom of the liquid storage barrel.

[0012] The above technical solution provides a gas pressure stabilizing device in a sintering furnace, which has the following beneficial effects compared with the prior art: a certain amount of liquid is contained in a liquid storage barrel, the liquid level in the liquid storage barrel is measured by a liquid level gauge, and liquid is injected or discharged into the liquid storage barrel through a liquid pipe so that the liquid level in the liquid storage barrel is at a set value, and the gas discharged from the exhaust port of the sintering furnace is passed into the liquid storage barrel through an air inlet pipe, and the gas discharged from the sintering furnace is discharged into the liquid from the end of the air inlet pipe below the liquid level in the liquid storage barrel, and then the gas moves upward to above the liquid level until it is discharged from the liquid storage barrel from the air outlet pipe. During the exhaust process, the liquid level remains unchanged, and the gas pressure stabilizing device in the sintering furnace can stabilize the gas pressure in the sintering furnace at a predetermined value, thereby more stably controlling the pressure in the sintering furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a gas pressure stabilizing device in a sintering furnace shown in an embodiment of the present utility model.

[0014] Among them, 1-liquid storage barrel, 11-air inlet, 12-air outlet, 13-liquid port, 2-liquid, 3-air inlet pipe, 4-liquid level gauge, 5-air outlet pipe, 6-liquid pipe, 61-water inlet, 62-sewage outlet, 7-valve, 8-water supply pipe. DETAILED DESCRIPTION

[0015] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in the present invention to indicate positions or positional relationships are based on the positions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of the utility model, it is necessary to explain that, unless another explicit provision and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0018] As Figure 1 Indicated, the utility model embodiment provides is a kind of sintering furnace gas pressure stabilizing device, including liquid bucket 1, gas inlet pipe 3, liquid level meter 4, gas outlet pipe 5 and liquid pipe 6, liquid bucket 1 is used to contain liquid 2, liquid 2 can be water, liquid bucket 1 has gas inlet 11, gas outlet 12 and liquid port 13, gas outlet 12 is located above the liquid level of liquid 2 in liquid bucket 1.

[0019] Gas inlet pipe 3 penetrates gas inlet 11, one end of gas inlet pipe 3 is inserted into liquid bucket 1 and is located below the liquid level of liquid 2 in liquid bucket 1, the other end of gas inlet pipe 3 is used to communicate with the exhaust port of sintering furnace.The end of gas inlet pipe 3 inserted into liquid bucket 1 has a certain distance from the bottom of liquid bucket 1, for example, 10cm above the bottom of liquid bucket 1.

[0020] Liquid level meter 4 is arranged on liquid bucket 1 and is used to measure the liquid level height of liquid 2 in liquid bucket 1, and liquid level meter 4 can measure the liquid level height according to the principle of communicating vessel.

[0021] Gas outlet pipe 5 communicates with gas outlet 12, and liquid pipe 6 communicates with liquid port 13.Gas entering liquid bucket 1 is discharged through gas outlet pipe 5 on gas outlet 12.Liquid pipe 6 can be used to inject liquid 2 into liquid bucket 1 and / or discharge liquid 2 in liquid bucket 1, so as to adjust the liquid level height, and then adjust the pressure in the furnace.For example, liquid pipe 6 can inject liquid 2 into liquid bucket 1 and discharge liquid 2 in liquid bucket 1;For example, two liquid pipes 6 can be provided, one of which is used to inject liquid, and the other is used to discharge liquid.

[0022] The gas pressure stabilizing device in the sintering furnace adopts the above-mentioned scheme, wherein a certain amount of liquid 2 is contained in the liquid barrel 1, the liquid level height of the liquid 2 in the liquid barrel 1 is measured by the liquid level meter 4, and the liquid 2 is injected or released into the liquid barrel 1 through the liquid pipe 6, so that the liquid level height of the liquid 2 in the liquid barrel 1 is at a set value, and the gas discharged from the exhaust port of the sintering furnace is introduced into the liquid barrel 1 through the air inlet pipe 3, and the gas discharged from the sintering furnace is discharged into the liquid 2 from the end of the air inlet pipe 3 below the liquid level in the liquid barrel 1, and then the gas moves upward to above the liquid level until it is discharged from the liquid barrel 1 from the air outlet pipe 5. During the exhaust process, the liquid level height of the liquid 2 remains unchanged, so the gas pressure stabilizing device in the sintering furnace can stabilize the gas pressure in the sintering furnace at a predetermined value, thereby more stably controlling the pressure in the sintering furnace.

[0023] In some embodiments, as Figure 1 As shown, the liquid level gauge 4 is located on the outer wall of the liquid holding barrel 1. Both the upper and lower ends of the liquid level gauge 4 are connected to the inner cavity of the liquid holding barrel 1. The upper end of the liquid level gauge 4 is located above the liquid level of the liquid 2 in the liquid holding barrel 1, and the lower end of the liquid level gauge 4 is located below the liquid level of the liquid 2 in the liquid holding barrel 1. The liquid 2 in the liquid holding barrel 1 can enter the liquid level gauge 4 through the lower end of the liquid level gauge 4.

[0024] In some embodiments, the liquid level gauge 4 is made of a transparent material, with scale lines on its sidewall. For example, the end of the air inlet pipe 3 extending into the liquid storage drum 1 can be used as a reference to measure the height H of the liquid level above this end of the air inlet pipe 3. This height can be adjusted via the liquid pipe 6. The transparent water column-type liquid level gauge 4 allows for intuitive confirmation of the height H, allowing for adjustment of the furnace pressure. For example, a liquid level H of 10 cm corresponds to a furnace pressure of 1 kPa; the liquid level H can be adjusted based on the furnace pressure.

[0025] In some embodiments, as Figure 1 As shown, valves 7 are respectively provided on the air inlet pipe 3, the air outlet pipe 5 and the liquid pipe 6. The valves 7 can be connecting ball valves for controlling the on-off of the corresponding pipelines.

[0026] In some embodiments, as Figure 1 As shown, the liquid pipe 6 is a three-way pipe. The left end of the liquid pipe 6 is the first end, which is connected to the liquid port 13. The second end of the liquid pipe 6 faces upward and has a water inlet 61. The water inlet 61 is provided with a water supply pipe 8. The right end of the liquid pipe 6 is the third end, which has a sewage outlet 62. Valves 7 are respectively provided on the water inlet 61 and the sewage outlet 62.

[0027] In some embodiments, as Figure 1 As shown, the air inlet 11 and the air outlet 12 are both located at the upper end of the liquid storage barrel 1 , the air inlet pipe 3 and the air outlet pipe 5 are both vertically arranged, and the liquid port 13 is located at the bottom of the liquid storage barrel 1 .

[0028] In some embodiments, the liquid storage barrel 1 is sealed and leak-proof, and can be sealed by welding or flange sealing rings.

[0029] In summary, the embodiment of the present invention provides a gas pressure stabilizing device in a sintering furnace, which can ensure the stability of the gas pressure in the furnace and is not affected by fluctuations in temperature and air flow rate; and the pressure adjustment is convenient and safe.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A gas pressure stabilizing device in a sintering furnace, characterized in that: include: a liquid storage barrel for containing liquid, the liquid storage barrel having an air inlet, an air outlet, and a liquid outlet, the air outlet being located above the liquid level in the liquid storage barrel; an air inlet pipe running through the air inlet, one end of the air inlet pipe extending into the liquid storage barrel and being located below the liquid level in the liquid storage barrel, and the other end of the air inlet pipe being connected to the exhaust port of the sintering furnace; A liquid level meter provided on the liquid storage barrel and used to measure the liquid level height of the liquid in the liquid storage barrel; an air outlet pipe communicating with the air outlet; and a liquid pipe communicating with the liquid port.

2. The gas pressure stabilizing device in a sintering furnace according to claim 1, characterized in that: The liquid level gauge is located on the outer wall of the liquid barrel, and the upper and lower ends of the liquid level gauge are both connected to the inner cavity of the liquid barrel. The upper end of the liquid level gauge is located above the liquid level in the liquid barrel, and the lower end of the liquid level gauge is located below the liquid level in the liquid barrel.

3. The gas pressure stabilizing device in a sintering furnace according to claim 2, characterized in that: The liquid level gauge is made of transparent material, and scale lines are arranged on the side wall of the liquid level gauge.

4. The gas pressure stabilizing device in a sintering furnace according to claim 1, characterized in that: The air inlet pipe, the air outlet pipe and the liquid pipe are respectively provided with valves.

5. The gas pressure stabilizing device in a sintering furnace according to claim 1, characterized in that: The liquid pipe is a three-way pipe, a first end of the liquid pipe is connected to the liquid port, a second end of the liquid pipe has a water inlet, and a third end of the liquid pipe has a sewage outlet.

6. The gas pressure stabilizing device in a sintering furnace according to claim 1, characterized in that: The air inlet and the air outlet are both located at the upper end of the liquid storage barrel, and the liquid port is located at the bottom of the liquid storage barrel.

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