All-inert gas protection plant for metal material production and using method of all-inert gas protection plant

Abstract

The invention provides a full inert gas protection plant for metal material production and a use method. The full inert gas protection plant comprises a working bin, and a gas output pipeline, a gas treatment system, a gas input pipeline and a first exhaust valve are connected to the working bin; the gas output pipeline is connected with the purification system; the purification system comprises a dust removal assembly and a cooling assembly, the dust removal assembly is connected with the gas output pipeline and the cooling assembly, the cooling assembly is connected with a fan, and the fan is connected with the gas input pipeline; the gas treatment system comprises a gas replacement assembly and a gas recovery assembly; the gas replacement assembly comprises a first storage tank, the first storage tank is connected with a gasifier, the gasifier is connected with a gas transmission assembly, and the gas transmission assembly is communicated with the working bin; the gas recovery assembly comprises a second storage tank, the second storage tank is connected with a gas compression part, the gas compression part is connected with the gas transmission assembly and the cooling assembly, a transition bin is arranged on the side of the working bin and connected with the gas transmission assembly, and an exhaust assembly is installed on the transition bin.

Description

Technical Field

[0001] The invention belongs to the technical field of metal material production, and in particular to a fully inert gas protection plant for metal material production and a use method thereof. Background Art

[0002] Metal materials, such as steel, titanium, aluminum, copper, nickel, magnesium, lithium, sodium, potassium, etc., are widely used in aerospace, deep-sea exploration, communication and medical care and other key fields due to their high strength, low density and multifunctional properties (such as shock absorption, electromagnetic shielding, thermal conductivity, energy storage, etc.). As the pillar of the national economy and the core material of high-end manufacturing, with the upgrading of technology and the advancement of the "dual carbon" strategy, metal materials face the dual challenges of performance improvement and energy conservation and emission reduction. Metal materials will undergo violent chemical exothermic reactions and even combustion with oxygen, nitrogen and water vapor in the air at room temperature and high-temperature liquid conditions. Under high-temperature liquid conditions, a large amount of reaction heat intensifies the oxidation reaction process of the metal liquid, especially for metals such as magnesium, titanium, lithium, sodium and potassium with strong chemical activity. This oxidation and combustion makes it very easy for metal materials to form a large number of non-metallic inclusions and pores during preparation and processing (such as smelting, welding, additive manufacturing, hot processing, etc.), which in turn makes the metal parts and products made of these defective metal materials have poor quality and large performance fluctuations.

[0003] At present, in order to reduce the defects caused by oxidation combustion during the preparation and processing of metal materials, traditional methods usually include adding protective flux to the surface of the metal material melt, setting up local protective covers in the metal material preparation and processing areas, adding alloy elements to the metal material to improve flame retardancy, and introducing special gases (such as SO2, CO2, SF6) that form dense oxide films in the local areas of metal material preparation and processing. Although the above methods can reduce the combustion that occurs during the preparation and processing of metal materials, the following problems still exist: 1) The emission of harmful gases has a strong greenhouse effect, large environmental pollution, and large investment in environmental protection equipment; 2) The formation of flux inclusions damages the performance of metal materials, corrodes equipment, and endangers the health of personnel; 3) The equipment and process are backward, and the whole process protection cannot be achieved, resulting in huge waste of raw materials; 4) The protection method is not universal. In addition, the oxidation combustion of metal materials also makes the precise control of preparation and processing very difficult. Therefore, the field of metal material preparation and processing urgently needs a clean, economical, efficient, and environmentally friendly protective equipment and process. Summary of the invention

[0004] In order to solve the problem that oxidation and combustion are prone to occur in the existing metal material preparation and processing process, resulting in a large number of defects in the metal material, serious material waste and environmental pollution, the present invention provides a fully inert gas protection plant for metal material production and a method of using the same. The bottleneck technical problems existing in the existing metal material preparation and processing technology, such as severe oxidation and combustion, difficulty in defect control, severe environmental pollution, low raw material utilization, poor product performance and large fluctuations, are completely solved, and significant environmental and economic benefits are achieved.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention proposes a fully inert gas protection plant for metal material production, comprising a working chamber, to which a gas output pipeline, a gas processing system, a gas input pipeline and a first exhaust valve are connected; The gas output pipeline is connected to a purification system; the purification system includes a dust removal component and a cooling component, the dust removal component is connected to the gas output pipeline, the dust removal component is connected to the cooling component, the cooling component is connected to a fan through a first pipeline, and the fan is in communication with the gas input pipeline; The gas processing system includes a gas replacement component and a gas recovery component; The gas replacement assembly includes a first storage tank for storing liquid inert gas, the first storage tank is connected to a vaporizer, the vaporizer is connected to a gas delivery assembly, the gas delivery assembly is buried under the ground of the working chamber, and the gas delivery assembly is in communication with the interior of the working chamber; The gas recovery assembly includes a second storage tank for storing inert gas, the second storage tank is connected to a gas compressor via a third pipeline, the gas compressor is connected to the first pipeline via a fourth pipeline, and the gas compressor is connected to the gas delivery assembly and the cooling assembly via a second pipeline; A transition chamber is arranged on the side of the working chamber, the transition chamber is communicated with the working chamber, the transition chamber is connected to the gas delivery component, and an exhaust component is installed on the transition chamber.

[0006] Preferably, a transition bin is provided on the side of the working bin, and the transition bin includes a first transition bin and a second transition bin, the first transition bin and the second transition bin are symmetrically arranged on both sides of the working bin, and the first transition bin and the second transition bin are respectively connected to the working bin, and the first transition bin and the second transition bin are both connected to the gas delivery component; the exhaust component includes a second exhaust valve and a third exhaust valve, the second exhaust valve is installed on the first transition bin, and the third exhaust valve is installed on the second transition bin.

[0007] Preferably, the gas delivery assembly includes a first delivery pipeline, a second delivery pipeline and a third delivery pipeline, the first delivery pipeline is buried under the ground of the working chamber, the second delivery pipeline is buried under the ground of the first transition chamber, and the third delivery pipeline is buried under the ground of the second transition chamber, and a fifth pipeline is connected to the first delivery pipeline, the second delivery pipeline and the third delivery pipeline, one end of the fifth pipeline is connected to the gasifier, and the other end of the fifth pipeline is connected to the second pipeline.

[0008] Preferably, the first conveying pipeline is connected to a ground channel ventilation assembly, and the ground channel ventilation assembly is installed on the side of the working chamber where the metal material production equipment is installed. The ground channel ventilation assembly includes a trench air duct, and the trench air duct is connected to the first conveying pipeline. A perforated plate is arranged on the top of the trench air duct, and a grille plate is arranged on the top of the orifice plate.

[0009] Preferably, the trench air duct is a stainless steel pipe.

[0010] Preferably, a third valve is installed on the first delivery pipeline, a second valve is installed on the second delivery pipeline, a fourth valve is installed on the third delivery pipeline, a first valve is installed on the fifth pipeline near the gasifier, an eighth valve is installed on the second pipeline at one side of the fifth pipeline, and a ninth valve is installed on the second pipeline at the other side of the fifth pipeline.

[0011] Preferably, a fifth valve is installed on the gas output pipeline, a sixth valve is installed on the first pipeline, a seventh valve is installed on the gas input pipeline, an eleventh valve is installed on the third pipeline, and a tenth valve is installed on the fourth pipeline.

[0012] Preferably, the dust removal assembly includes a first dust collector and a second dust collector, the first dust collector is connected to the second dust collector, the first dust collector is connected to the gas output pipeline, and the second dust collector is connected to the first pipeline.

[0013] Preferably, a detection system is installed in the working chamber, and the detection system includes a concentration sensor, a pressure sensor, a temperature sensor, a video monitor, a processor and an alarm; The concentration sensor, the pressure sensor, the temperature sensor, the video monitor and the alarm are communicatively connected to the processor; The concentration sensor is used to detect the inert gas concentration and oxygen concentration in the working chamber and the transition chamber; The pressure sensor is used to detect the internal positive pressure of the working chamber; The temperature sensor is used to detect the internal temperature of the working chamber; The video monitor is used to detect the preparation and processing of metal materials in the working bin and the transition bin; The processor is used to control the alarm to sound an alarm when the oxygen concentration detected by the concentration sensor is too low or the inert gas concentration is too low.

[0014] The present invention proposes a method for using a fully inert gas protected plant for metal material production, based on the application of the above-mentioned fully inert gas protected plant, comprising the following steps: During the inert gas replacement and replenishment, the liquid inert gas stored in the first storage tank in the gas replacement component is gasified by the gasifier and then input into the working chamber and the transition chamber through the gas delivery component. The air in the working chamber is discharged through the first exhaust valve, and the air in the transition chamber is discharged through the exhaust component, so as to achieve the inert gas replacement at the bottom of the working chamber; the inert gas stored in the second storage tank in the gas recovery component is input into the gas compressor through the third pipeline, and the gas compressor inputs the inert gas to the fan through the fourth pipeline and the first pipeline, and the fan inputs the inert gas into the working chamber through the gas input pipeline, so as to achieve the inert gas replacement at the top of the working chamber; During gas purification: preparation and processing of metal materials begins in the working chamber, and the polluted gas in the working chamber enters the dust removal component and the cooling component in sequence through the gas output pipeline for dust removal and cooling, and then enters the fan through the first pipeline, and re-enters the working chamber through the gas input pipeline connected to the fan, thereby purifying the inert gas in the working chamber; Inert gas recovery: The inert gas in the working chamber enters the second pipeline through the gas delivery component, and then enters the gas compressor. After being compressed by the gas compressor, it enters the second storage tank through the third pipeline for storage; or the inert gas in the working chamber and the transition chamber is input into the second pipeline through the gas delivery component, and then enters the dust removal component and the cooling component in turn through the second pipeline for dust removal and cooling, and then enters the gas compressor through the first pipeline and the fourth pipeline in turn. After being compressed by the gas compressor, it enters the second storage tank through the third pipeline for storage.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention proposes a fully inert gas protection plant for metal material production. The purification system of the protection plant connected by the gas output pipeline effectively removes the dust generated in the working chamber and reduces the internal temperature, ensuring the recycling quality of the inert gas. The synergistic effect of the dust removal component and the cooling component realizes the cleaning of the inert gas in the working chamber, and the cleaned inert gas is re-input into the working chamber. The inert gas can be continuously purified and recycled, avoiding the waste of inert protective gas and saving costs to the greatest extent. The gas replacement component and the gas recovery component in the gas treatment system can be used to clean the inert gas in the factory chamber. Replacement and replenishment can keep the inert gas in the working chamber at a preset concentration and pressure, providing a stable inert gas environment for the preparation and processing of metal materials. It can completely avoid defects such as oxidation inclusions and pores caused by the oxidation and combustion of metal materials, and can also avoid surface oxidation of materials. It can greatly and exponentially improve the performance of metal material ingots and products, and improve the market competitiveness of products. At the same time, after the production of metal materials is completed, the inert gas in the working chamber can be recovered through the gas recovery component, which reduces the waste of inert gas, reduces the cost of metal material production, greatly improves product performance, and has significant environmental and economic benefits.

[0016] Furthermore, transition bins are set on both sides of the working bin in the protection plant. The transition bins can maintain a full inert gas atmosphere in the working bin during operations such as feeding, discharging, and maintenance, ensuring that metal materials do not oxidize and burn, reducing oxidation losses of metal materials during operations such as feeding, discharging, and maintenance, and improving the utilization rate of metal materials; at the same time, material losses are completely eliminated during the entire metal material preparation and processing process, improving material utilization and increasing corporate profits.

[0017] Furthermore, the dust removal assembly in the protective workshop includes a first dust collector and a second dust collector. The two dust collectors can effectively remove the dust carried by the inert gas output from the working chamber, thereby improving the cleanliness of the inert gas re-input into the working chamber.

[0018] Furthermore, a detection system is provided in the protection plant. The detection system accurately monitors the inert gas concentration and oxygen concentration in the working chamber through a gas concentration sensor to ensure that the gas composition of the production environment meets safety standards, effectively preventing safety hazards such as fire and explosion caused by excessive oxygen concentration, and production quality problems caused by insufficient inert gas concentration. At the same time, the pressure sensor monitors the internal positive pressure of the working chamber in real time to ensure the stability of the gas environment and prevent the infiltration of external air, thereby improving the safety of the production environment. The temperature sensor accurately monitors the internal temperature of the working chamber, which helps operators to promptly understand the temperature changes in the production environment and avoid Since too high or too low temperature has an adverse effect on the preparation and processing of metal materials, the setting of the video monitor realizes the intuitive monitoring of the metal material preparation and processing process in the working chamber, which is convenient for operators to promptly discover and deal with abnormal situations in the production process. The processor, as the core of the detection system, can make fast and accurate judgments and analyses based on the data provided by the concentration sensor, pressure sensor, temperature sensor and video monitor. Once safety hazards such as low oxygen concentration or low inert gas concentration are detected, the processor will immediately control the alarm to alarm and remind the operator to take emergency measures, thereby effectively avoiding the occurrence of safety accidents.

[0019] Furthermore, this protective plant has significant cleaning, economical, efficient and environmentally friendly effects. On the one hand, it reduces the smoke generated by oxidation combustion during the preparation and processing of metal materials, and reduces environmental pollution; at the same time, no oxide scale is generated on the surface of the metal ingot during the heating and melting process, which can accelerate melting and reduce energy consumption. In particular, it can completely avoid the use of traditional flux or special gases (such as greenhouse gases such as SF6, SO2, CO2 and sulfur), and eliminate the emission of harmful gases, smoke and strong greenhouse gases generated by the decomposition of flux at high temperatures. It not only reduces the investment in environmental protection facilities, avoids the use of flux / special gases, saves corporate costs, but also does not cause any harm to the equipment and the health of workers. It is a green and environmentally friendly metal material preparation and processing protection device and technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention proposes a schematic diagram of a fully inert gas protected plant for metal material production; Figure 2 The present invention proposes a schematic diagram of a purification system in a fully inert gas protection plant for metal material production; Figure 3 The present invention proposes a structural schematic diagram of a ground channel ventilation system in a fully inert gas protection plant for metal material production; In the attached drawings: 1, first valve; 2, second valve; 3, third valve; 4, fourth valve; 5, fifth valve; 6, sixth valve; 7, seventh valve; 8, eighth valve; 9, ninth valve; 10, tenth valve; 11, eleventh valve; 100, working chamber; 101, first delivery pipeline; 102, gas input pipeline; 103, gas output pipeline; 104, first exhaust valve; 105, first sealing member; 106, second sealing member; 107, third sealing member; 108, fourth Seal; 109, trench air duct; 110, orifice plate; 111, grille plate; 201, first transition chamber; 202, second transition chamber; 203, second delivery pipeline; 204, second exhaust valve; 205, third delivery pipeline; 206, third exhaust valve; 301, first storage tank; 302, gasifier; 303, second storage tank; 400, purification system; 401, first dust collector; 402, second dust collector; 403, cooling assembly; 404, fan; 501, gas compressor. DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1~Figure 3 The present invention proposes a fully inert gas protection plant for metal material production, including a working chamber 100, on which a gas output pipeline 103, a gas processing system, a gas input pipeline 102 and a first exhaust valve 104 are provided. The gas output pipeline 103, the gas input pipeline 102 and the first exhaust valve 104 are installed on the top of the working chamber 100 and are connected to the interior of the working chamber 100. A fifth valve 5 is installed on the gas output pipeline 103, and the conduction and closing of the gas output pipeline 103 are controlled by the fifth valve 5. A seventh valve 7 is installed on the gas input pipeline 102, and the conduction and closing of the gas input pipeline 102 are controlled by the seventh valve 7. In this embodiment, the inert gas is argon (Ar) with a purity of not less than 99.9%.

[0028] See also Figure 2The gas output pipeline 103 is connected to a purification system 400; the purification system 400 includes a dust removal component and a cooling component 403, the dust removal component is connected to the gas output pipeline 103, the dust removal component is connected to the cooling component 403, the cooling component 403 is connected to a fan 404 through a first pipeline, a sixth valve 6 is installed on the first pipeline, and the fan 404 is connected to the gas input pipeline 102; the dust removal component includes a first dust collector 401 and a second dust collector 402, the first dust collector 401 is connected to the second dust collector 402, the first dust collector 401 is connected to the gas output pipeline 103, and the second dust collector 402 is connected to the first pipeline. The purification system 400 can purify the gas in the working chamber 100 to ensure the cleanliness of the gas in the working chamber 100. In this embodiment, the first dust collector 401 is a cyclone dust collector, the second dust collector 402 is a bag dust collector, and the cooling component 403 includes a heat exchanger, a cold water pump and a cold water storage tank. The cold water in the cold water storage tank is input into the heat exchanger through the cold water pump to exchange heat with the high-temperature gas in the heat exchanger.

[0029] The gas processing system includes a gas replacement component and a gas recovery component; the gas replacement component includes a first storage tank 301, the first storage tank 301 is used to store liquid inert gas, the first storage tank 301 is connected to a gasifier 302, the gasifier 302 is connected to a gas transmission component, the gas transmission component is buried under the ground of the working chamber 100, and the gas transmission component is connected to the inside of the working chamber 100; The gas recovery component includes a second storage tank 303, which is used to store inert gas. The second storage tank 303 is connected to a gas compressor via a third pipeline, an eleventh valve 11 is installed on the third pipeline, the gas compressor is connected to the first pipeline via a fourth pipeline, a tenth valve 10 is installed on the fourth pipeline, and the gas compressor is connected to the gas delivery component and the cooling component 403 via the second pipeline. In this embodiment, the gas compression component is a gas compressor 501; the liquid inert gas stored in the first storage tank 301 is gasified and depressurized by the gasifier 302, and then input into the working chamber 100 through the gas transmission component, and the inert gas stored in the second storage tank 303 is input into the gas compression component through the third pipeline, and then input into the gas input pipeline 102 through the fourth pipeline, the first pipeline and the fan 404, and introduced into the working chamber 100, and the air is discharged from the first exhaust valve 104 by utilizing the principle that the inert gas is heavy and the air is light; after multiple cycles, the air in the working chamber 100 is completely discharged; the air in the working chamber 100 is replaced by the above two methods to form a closed workshop with full inert gas protection.

[0030] A transition chamber is arranged on the side of the working chamber 100, the transition chamber is communicated with the working chamber 100, the transition chamber is connected to the gas delivery component, and an exhaust component is installed on the transition chamber; the transition chamber includes a first transition chamber 201 and a second transition chamber 202, the first transition chamber 201 and the second transition chamber 202 are symmetrically arranged on both sides of the working chamber 100, and the first transition chamber 201 and the second transition chamber 202 are respectively communicated with the working chamber 100, a first sealing member 105 is arranged at the connection between the first transition chamber 201 and the working chamber 100, a third sealing member 107 is arranged at a position symmetrical to the first sealing member 105 on the first transition chamber 201, and a second sealing member 106 is arranged at the connection between the second transition chamber 202 and the working chamber 100, A fourth seal 108 is provided at a position symmetrical to the second seal 106 on the second transition bin 202, wherein the first seal 105, the second seal 106, the third seal 107 and the fourth seal 108 are all sealing doors, and the first transition bin 201 and the second transition bin 202 are both connected to the gas delivery assembly; the exhaust assembly includes a second exhaust valve 204 and a third exhaust valve 206, the second exhaust valve 204 is installed on the first transition bin 201, and the third exhaust valve 206 is installed on the second transition bin 202. The first transition bin 201 and the second transition bin 202 enable the working bin 100 to maintain a fully inert gas atmosphere during operations such as feeding, discharging, and maintenance to ensure that the metal material does not oxidize and burn.

[0031] The gas delivery assembly includes a first delivery pipeline 101, a second delivery pipeline 203 and a third delivery pipeline 205. The first delivery pipeline 101 is buried under the ground of the working chamber 100, the second delivery pipeline 203 is buried under the ground of the first transition chamber 201, and the third delivery pipeline 205 is buried under the ground of the second transition chamber 202. A fifth pipeline is connected to the first delivery pipeline 101, the second delivery pipeline 203 and the third delivery pipeline 205. One end of the fifth pipeline is connected to the gasifier 302, and the other end of the fifth pipeline is connected to the second pipeline. A third valve 3 is installed on the first delivery pipeline 101, a second valve 2 is installed on the second delivery pipeline 203, a fourth valve 4 is installed on the third delivery pipeline 205, a first valve 1 is installed on the fifth pipeline near the gasifier 302, an eighth valve 8 is installed on the second pipeline at one side of the fifth pipeline and near the gas compressor, and a ninth valve 9 is installed on the second pipeline at the other side of the fifth pipeline and near the purification system 400.

[0032] See also Figure 3The first conveying pipeline 101 is connected with a floor ventilation assembly, and the floor ventilation assembly is installed on the side of the metal material production equipment installed in the working chamber 100. The floor ventilation assembly includes a floor air duct 109, and the floor air duct 109 is a stainless steel pipe. The floor air duct 109 is connected with the first conveying pipeline 101. A perforated plate 110 is arranged on the top of the floor air duct 109, and a grille plate 111 is arranged on the top of the orifice plate 110.

[0033] A detection system is installed in the working chamber 100, and the detection system includes a concentration sensor, a pressure sensor, a temperature sensor, a video monitor, a processor and an alarm; wherein the concentration sensor, the pressure sensor, the temperature sensor, the video monitor and the alarm are communicatively connected to the processor; The concentration sensor includes an inert gas concentration sensor and an oxygen concentration sensor. In this embodiment, six inert gas concentration sensors are provided, of which four inert gas concentration sensors are installed at different heights inside the working chamber 100 to detect the inert gas concentration in the working chamber 100, and the remaining two inert gas concentration sensors are installed in the transition chamber, and one inert gas concentration sensor is installed in the first transition chamber 201, and one inert gas concentration sensor is installed in the second transition chamber 202; the inert gas concentration sensor detects the inert gas concentration in the transition chamber; four oxygen concentration sensors are provided, and the four oxygen concentration sensors are installed at the four corners inside the working chamber 100 to detect the oxygen concentration at different positions in the working chamber 100; the pressure sensor is a gas pressure sensor. A body pressure sensor is installed inside the working chamber 100, and is used to detect the internal positive pressure of the working chamber 100; when the inert gas concentration or pressure in the working chamber 100 drops to a set value, feedback is given to the processor, and the gas treatment system is controlled by the processor to automatically start the inert gas replacement; there are 4 temperature sensors, which are installed in the working chamber 100 and are used to detect the internal temperature of the working chamber 100; there are 4 video monitors, which are installed at different positions in the working chamber 100 and are used to detect the preparation and processing of metal materials in the working chamber 100; an alarm is installed in the working chamber 100, and the processor is used to control the alarm to sound an alarm when the oxygen concentration detected by the concentration sensor is too low or the inert gas concentration is too low.

[0034] The present invention also proposes a method for using a fully inert gas protected plant for metal material production, based on the application of the above-mentioned protected plant, comprising the following steps: During the inert gas replacement and replenishment, the liquid inert gas stored in the first storage tank in the gas replacement component is gasified by the gasifier and then input into the working chamber through the gas delivery component, and the air in the working chamber is discharged through the first exhaust valve, so as to realize the inert gas replacement at the bottom of the working chamber; the inert gas stored in the second storage tank in the gas recovery component is input into the gas compressor through the third pipeline, and the gas compressor inputs the inert gas to the fan through the fourth pipeline and the first pipeline, and the fan inputs the inert gas into the working chamber through the gas input pipeline, so as to realize the inert gas replacement at the top of the working chamber; Specifically, during the inert gas replacement, the first seal 105, the second seal 106, the third seal 107 and the fourth seal 108 are closed, the first valve 1, the second valve 2, the third valve 3, the fourth valve 4, the first exhaust valve 104 on the working chamber 100, the second exhaust valve 204 on the first transition chamber 201 and the third exhaust valve 206 on the second transition chamber 202 are opened, the remaining valves are in a closed state, the vaporizer 302 is started, the vaporizer 302 vaporizes the liquid inert gas stored in the first storage tank 301 in the gas replacement assembly, and transports it to the first delivery pipeline 101, the second delivery pipeline 203 and the third delivery pipeline 205 respectively through the fifth pipeline, and is input into the working chamber 100 through the first delivery pipeline 101, and is input into the working chamber 100 through the second delivery pipeline 203. The gas is fed into the first transition chamber 201 through the delivery pipe 203, and then fed into the second transition chamber 202 through the third delivery pipe 205, so as to discharge the air inside the working chamber 100, the first transition chamber 201 and the second transition chamber 202, and realize the inert gas replacement at the bottom of the working chamber 100; at the same time, the tenth valve 10, the sixth valve 6 and the seventh valve 7 can be opened, and the fan 404 can be started to transport the inert gas stored in the second storage tank 303 to the fan 404 through the fourth pipe and the first pipe in turn, and then fed into the working chamber 100 through the gas input pipe 102 connected to the fan 404, so as to realize the inert gas replacement at the top of the working chamber 100. When the concentration detected by the inert gas concentration sensor reaches the condition, the replacement is stopped and all valves are closed. In the preparation and processing of metal materials, when the concentration sensor and the pressure sensor detect that the inert gas concentration and pressure in the working chamber 100 do not meet the conditions, the inert gas replacement step is repeated to replenish the inert gas and maintain the high purity of the inert gas in the plant; During gas purification: the preparation and processing of metal materials begins in the working chamber, and the polluted gas in the working chamber enters the dust removal component and the cooling component in turn through the gas output pipeline for dust removal and cooling, and then enters the fan through the first pipeline, and re-enters the working chamber through the gas input pipeline connected to the fan to achieve gas purification; Specifically, the preparation and processing of metal materials are started in the working chamber 100, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are opened, and the other valves are closed. The exhaust gas, smoke, etc. generated in the preparation and processing of metal materials in the working chamber 100 enter the cyclone dust collector, the bag dust collector, and the cooling component 403 in sequence through the gas output pipeline 103 for dust removal and cooling, and then enter the fan 404, and then re-input into the working chamber 100 through the gas input pipeline 102 connected to the fan 404 to achieve exhaust gas purification; Inert gas recovery: the inert gas in the working chamber and the transition chamber enters the second pipeline through the gas delivery component, then enters the gas compressor, and after being compressed by the gas compressor, enters the second storage tank through the third pipeline for storage; or the inert gas in the working chamber and the transition chamber is input into the second pipeline through the gas delivery component, enters the dust removal component and the cooling component in turn through the second pipeline for dust removal and cooling, and then enters the gas compressor through the first pipeline and the fourth pipeline in turn, and after being compressed by the gas compressor, enters the second storage tank through the third pipeline for storage.

[0035] Specifically, the second valve 2, the third valve 3, the fourth valve 4, the eighth valve 8, and the eleventh valve 11 are opened, the first exhaust valve 104 on the working chamber 100, and the second exhaust valve 204 on the first transition chamber 201 are opened, and the other valves are closed, and the inert gas at the bottom of the working chamber 100 is input into the fifth pipeline through the first delivery pipeline 101, the inert gas in the first transition chamber 201 is input into the fifth pipeline through the second delivery pipeline 203, and the inert gas in the second exhaust valve 204 is input into the fifth pipeline through the third delivery pipeline 205, the inert gas is input into the second pipeline through the fifth pipeline, and then directly enters the gas compressor 501 through the second pipeline; or the second valve 2, the third valve 3, the fourth valve 4, and the ninth valve are opened. The door 9, the tenth valve 10, the eleventh valve 11, the first exhaust valve 104 on the working chamber 100, the second exhaust valve 204 on the first transition chamber 201, and the other valves are closed, the inert gas at the bottom of the working chamber 100 is input into the fifth pipe through the first delivery pipe 101, and the inert gas in the first transition chamber 201 is input into the fifth pipe through the second delivery pipe 203. The fifth pipe inputs the inert gas into the second pipe, and then through the second pipe, it is successively input into the first dust collector 401, the second dust collector 402 and the cooling component 403 for dust removal and cooling treatment, and then enters the gas compressor 501 through the first pipe and the fourth pipe, and after being compressed by the gas compressor 501, enters the second storage tank 303 through the third pipe for storage.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A fully inert gas protected plant for metal material production, characterized in that: It comprises a working chamber (100), to which a gas output pipeline (103), a gas processing system, a gas input pipeline (102) and a first exhaust valve (104) are connected; The gas output pipeline (103) is connected to a purification system (400); the purification system (400) comprises a dust removal component and a cooling component (403); the dust removal component is connected to the gas output pipeline (103); the dust removal component is connected to the cooling component (403); the cooling component (403) is connected to a fan (404) via a first pipeline; the fan (404) is in communication with the gas input pipeline (102); The gas processing system includes a gas replacement component and a gas recovery component; The gas replacement assembly comprises a first storage tank (301) for storing liquid inert gas, the first storage tank (301) is connected to a vaporizer (302), the vaporizer (302) is connected to a gas delivery assembly, the gas delivery assembly is buried under the ground of the working chamber (100), and the gas delivery assembly is in communication with the interior of the working chamber (100); The gas recovery component comprises a second storage tank (303) for storing inert gas, the second storage tank (303) is connected to a gas compressor via a third pipeline, the gas compressor is connected to the first pipeline via a fourth pipeline, and the gas compressor is connected to the gas delivery component and the cooling component (403) via a second pipeline; A transition chamber is provided on the side of the working chamber (100), the transition chamber is in communication with the working chamber (100), the transition chamber is connected to the gas delivery component, and an exhaust component is installed on the transition chamber.

2. The fully inert gas protection plant for metal material production according to claim 1 is characterized in that: The transition chamber comprises a first transition chamber (201) and a second transition chamber (202), the first transition chamber (201) and the second transition chamber (202) being symmetrically arranged on both sides of the working chamber (100), and the first transition chamber (201) and the second transition chamber (202) being respectively connected to the working chamber (100), and the first transition chamber (201) and the second transition chamber (202) being both connected to the gas transmission assembly; The exhaust assembly comprises a second exhaust valve (204) and a third exhaust valve (206), wherein the second exhaust valve (204) is installed on the first transition chamber (201), and the third exhaust valve (206) is installed on the second transition chamber (202).

3. The fully inert gas protection plant for metal material production according to claim 2 is characterized in that: The gas delivery assembly comprises a first delivery pipeline (101), a second delivery pipeline (203) and a third delivery pipeline (205); the first delivery pipeline (101) is buried under the ground of the working chamber (100); the second delivery pipeline (203) is buried under the ground of the first transition chamber (201); the third delivery pipeline (205) is buried under the ground of the second transition chamber (202); a fifth pipeline is connected to the first delivery pipeline (101), the second delivery pipeline (203) and the third delivery pipeline (205); one end of the fifth pipeline is in communication with the gasifier (302); and the other end of the fifth pipeline is in communication with the second pipeline.

4. The fully inert gas protection plant for metal material production according to claim 3 is characterized in that: The first conveying pipeline (101) is connected to a floor ventilation assembly, the floor ventilation assembly being installed on a side of the working chamber (100) where metal material production equipment is installed, the floor ventilation assembly comprising a floor air duct (109), the floor air duct (109) being in communication with the first conveying pipeline (101), a perforated plate (110) being arranged at the top of the floor air duct (109), and a grille plate (111) being arranged at the top of the perforated plate (110).

5. The fully inert gas protection plant for metal material production according to claim 4 is characterized in that: The trench air duct (109) is a stainless steel pipe.

6. The fully inert gas protection plant for metal material production according to claim 3 is characterized in that: A third valve (3) is installed on the first delivery pipeline (101), a second valve (2) is installed on the second delivery pipeline (203), a fourth valve (4) is installed on the third delivery pipeline (205), a first valve (1) is installed on the fifth pipeline at a position close to the gasifier (302), an eighth valve (8) is installed on the second pipeline at one side of the fifth pipeline, and a ninth valve (9) is installed on the second pipeline at the other side of the fifth pipeline.

7. The fully inert gas protection plant for metal material production according to claim 1 is characterized in that: A fifth valve (5) is installed on the gas output pipeline (103), a sixth valve (6) is installed on the first pipeline, a seventh valve (7) is installed on the gas input pipeline (102), an eleventh valve (11) is installed on the third pipeline, and a tenth valve (10) is installed on the fourth pipeline.

8. The fully inert gas protection plant for metal material production according to claim 1 is characterized in that: The dust removal assembly comprises a first dust collector (401) and a second dust collector (402), the first dust collector (401) being connected to the second dust collector (402), the first dust collector (401) being connected to the gas output pipeline (103), and the second dust collector (402) being connected to the first pipeline.

9. The fully inert gas protection plant for metal material production according to claim 1, characterized in that: A detection system is installed in the working chamber (100), the detection system comprising a concentration sensor, a pressure sensor, a temperature sensor, a video monitor, a processor and an alarm; The concentration sensor, the pressure sensor, the temperature sensor, the video monitor and the alarm are communicatively connected to the processor; The concentration sensor is used to detect the inert gas concentration and oxygen concentration in the working chamber (100) and the transition chamber; The pressure sensor is used to detect the internal positive pressure of the working chamber (100); The temperature sensor is used to detect the internal temperature of the working chamber (100); The video monitor is used to detect the conditions of metal material preparation and processing in the working chamber (100) and the transition chamber; The processor is used to control the alarm to sound an alarm when the oxygen concentration detected by the concentration sensor is too low or the inert gas concentration is too low.

10. A method for using a fully inert gas protected plant for metal material production, based on the fully inert gas protected plant described in any one of claims 1 to 9, characterized in that: The following steps are involved: During the inert gas replacement and replenishment, the liquid inert gas stored in the first storage tank in the gas replacement component is gasified by the gasifier and then input into the working chamber and the transition chamber through the gas delivery component. The air in the working chamber is discharged through the first exhaust valve, and the air in the transition chamber is discharged through the exhaust component, so as to achieve the inert gas replacement at the bottom of the working chamber; the inert gas stored in the second storage tank in the gas recovery component is input into the gas compressor through the third pipeline, and the gas compressor inputs the inert gas to the fan through the fourth pipeline and the first pipeline, and the fan inputs the inert gas into the working chamber through the gas input pipeline, so as to achieve the inert gas replacement at the top of the working chamber; During gas purification: preparation and processing of metal materials begins in the working chamber, and the polluted gas in the working chamber enters the dust removal component and the cooling component in sequence through the gas output pipeline for dust removal and cooling, and then enters the fan through the first pipeline, and re-enters the working chamber through the gas input pipeline connected to the fan, thereby purifying the inert gas in the working chamber; Inert gas recovery: The inert gas in the working chamber and the transition chamber enters the second pipeline through the gas delivery component, and then enters the gas compressor. After being compressed by the gas compressor, it enters the second storage tank through the third pipeline for storage; or the inert gas in the working chamber and the transition chamber is input into the second pipeline through the gas delivery component, enters the dust removal component and the cooling component in turn through the second pipeline for dust removal and cooling, and then enters the gas compressor through the first pipeline and the fourth pipeline in turn. After being compressed by the gas compressor, it enters the second storage tank through the third pipeline for storage.

Images