Reactor stretching device and method for inhibiting titanium sponge production

Abstract

The present invention relates to a device and method for suppressing the stretching of a reactor for producing titanium sponge. To solve the problem of interfering with the sealing flange, the device comprises a vertical reduction distillation electric furnace for heating the reactor, a T-shaped lifting bracket with an upper support extending downward from a lower support in the vertical reduction distillation electric furnace, the lower support passing through the vertical hole at the bottom of the vertical reduction distillation electric furnace in a heat-insulated and sealed manner, and a hard refractory material tray and an automatic vertical support mechanism for supporting the reactor are respectively arranged above and below the T-shaped lifting bracket; the support of the automatic vertical support mechanism can not only meet the needs of the reactor's own thermal expansion and contraction, but also effectively suppress the support of the reactor, and also not interfere with the sealing flange, thereby playing the role of suppressing the stretching of the reactor for producing titanium sponge. The device has the advantages of suppressing the tensile deformation caused by creep high temperature by reducing the stress produced by the reactor's own weight and the weight of the contents, extending the service life of the reactor, being easy to operate, and not interfering with the sealing flange at the upper end of the reduction distillation electric furnace.

Description

Technical Field

[0001] The invention relates to a reactor for producing titanium sponge, and in particular to a device and method for suppressing the stretching of a reactor for producing titanium sponge. Background Art

[0002] In the process of producing titanium sponge by the Kroll method, the reactor is generally made of metal materials such as carbon steel, stainless steel or composite plates. The reactor needs to go through four stages in a production cycle of titanium sponge: room temperature → magnesium melting stage at about 800℃, reduction stage at about 850℃, distillation stage at about 1040℃ and cooling stage at about 1040℃ → room temperature. The reactor is generally hoisted and placed in a reduction distillation furnace. In addition to elastic deformation and elongation due to temperature increase, the reactor cylinder is also elongated due to plastic deformation caused by high-temperature creep under the stress produced by its own weight and the weight of the contents at high temperature. The amount of creep deformation increases with the increase of temperature, time and stress. Creep deformation is irreversible. As the reactor's service life increases, the reactor will be elongated, making its wall thickness thinner and thinner until it cannot be used safely and is scrapped.

[0003] As the titanium sponge production equipment becomes larger, the weight of the reactor and the weight of its contents will increase, and the stress generated will also increase. The increase in stress will cause the tensile deformation of the reactor due to creep and high temperature in each production cycle of the titanium sponge to increase, the service life of the reactor will be reduced, and the unit titanium sponge production cost will increase.

[0004] There is an anti-stretching control device for a vacuum distillation reduction reactor: comprising a tray, a rib plate, a cylindrical connection body, a fixed plate, an adjustment pad plate group, and a fastening bolt: an adjustment pad plate group is provided at the bottom of the cylindrical connection body and under the fixed plate, and the fixed plate is connected by fastening bolts. The adjustment pad plate group is composed of 12 to 14 adjustment pad plates, and there is a gap H between the fixed plate and the tray. The upper part of the rib plate is welded to the tray and the lower part is welded to the cylindrical connection body. The fixed plate and the cylindrical connection body are welded. A vent hole is provided in the middle part of the fixed plate. There is a H spacing between the fixed plate and the tray, and the H spacing is 400-500mm. Each adjustment pad plate is connected by a countersunk bolt. The adjustment pad plate group is composed of 12 to 14 adjustment pad plates, and the first adjustment pad plate and the second adjustment pad plate are connected by 4 countersunk bolts, and the bolt positions are evenly arranged at 90°. The second adjustment pad plate and the third adjustment pad plate are connected by 4 countersunk bolts, and the bolt positions are evenly arranged by rotating 45°. The third adjusting pad and the fourth adjusting pad are connected by 4 countersunk bolts, and the bolt positions are evenly arranged at 90 degrees... and so on. The rib plate is connected to the tray and the cylindrical connecting body by welding.

[0005] Working process: Before the first use, a gap of 10-12mm is reserved between the anti-stretching adjustment pad group and the bottom of the steaming furnace. When heated at high temperature, the tank body is stretched due to thermal expansion, so that the gap between the adjustment pad group and the bottom of the steaming furnace disappears. At this time, the tray, the cylindrical connecting body, the fixed plate, the adjustment pad group and the bottom of the steaming furnace jointly bear the stretching and elongation of the tank body due to elastic deformation. The adjustment pad group not only prevents the tank body from continuing to grow due to heat elongation, but also overcomes the lifting force generated by the contact between the tank body and the bottom of the steaming furnace due to elongation, and continues to maintain the overall sealing state of the reactor tank body. After the reactor tank body has been reduced and distilled for 15 days, the anti-stretching control device completes its first working mission. When used for the second time, first remove the first δ=14mm pad of the lowest layer of the adjustment pad group, and mechanically remove the countersunk bolts between the adjustment pad and the second layer of the adjustment pad. After the first adjustment pad is removed, the reduction reactor tank is still suspended in a free state, and the gap between the anti-stretching control pad device and the bottom of the reduction distillation furnace is 14 mm. By analogy, the third, fourth, and twelfth adjustment pads are removed in sequence, which can effectively control the elongation deformation of the reduction reactor tank caused by tension and pressure. This prior art gradually lowers the support as the reactor is stretched each time, and each time it is lowered, there is still a defect of complicated operation, and it is easy to interfere with the sealing flange between the upper end of the reduction distillation electric furnace and the upper part of the reactor. Summary of the invention

[0006] The present invention aims to overcome the above-mentioned defects of the prior art, and provides a device for suppressing the stretching of a reactor for producing titanium sponge, and also relates to the method for suppressing the stretching of a reactor for producing titanium sponge implemented on the device. The device and method suppress the tensile deformation caused by creep high temperature by reducing the stress generated by the reactor's own weight and the weight of the contents, thereby extending the service life of the reactor, being easy to operate, and not hindering the sealing flange at the upper end of the reduction distillation electric furnace.

[0007] To achieve the above-mentioned purpose, the present invention comprises a vertical cylindrical reduction distillation electric furnace with a resistance wire arranged on the inner periphery for heating the reactor, and the special feature of the vertical cylindrical reduction distillation electric furnace is that a T-shaped lifting bracket with an upper support extending downward from a lower support is arranged in the vertical cylindrical reduction distillation electric furnace, and the lower support is thermally insulated and sealed downward and passes through the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, and a hard refractory material tray for supporting the reactor upward is arranged on the upper support, and an automatic vertical support mechanism is arranged at the lower end of the lower support that can adapt to the thermal expansion and contraction of the reactor itself and does not interfere with the sealing flange between the vertical cylindrical reduction distillation electric furnace and the reactor; the adaptation and non-interference are that the support of the automatic vertical support mechanism can not only meet the needs of the thermal expansion and contraction of the reactor itself, but also effectively suppress the additional stretching beyond the thermal expansion and contraction of the reactor itself, and also does not interfere with the sealing flange, thereby playing the role of suppressing the stretching of the reactor for sponge titanium production. That is, the hard refractory material tray is placed on the upper support, and the lower support of the upper support is placed on the hydraulic cylinder. It has the advantages of reducing the stress produced by the reactor's own weight and the weight of the contents, thereby suppressing the tensile deformation caused by creep high temperature, extending the service life of the reactor, being easy to operate, and not interfering with the sealing flange on the upper end of the reduction distillation electric furnace.

[0008] As an optimization, the automatic vertical support mechanism used to support the lower pillar is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the vertical spring support mechanism automatically and synchronously increases the strength of suppressing the stretching of the reactor as the degree of stretching of the reactor increases, without the need for additional control and adjustment, and the intelligent hydraulic support mechanism can freely set and automatically adjust the support strength for suppressing the stretching of the reactor according to the need to suppress the stretching of the reactor.

[0009] As an optimization, the intelligent hydraulic support mechanism is a hydraulic cylinder connected to an intelligent hydraulic station that supports the lower support pillar upward. Within the travel range, the intelligent hydraulic station sets a reasonable support hydraulic value range according to the thermal expansion and contraction needs of the reactor itself without affecting the reactor sealing support flange; the intelligent hydraulic station is equipped with an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support. When the measured support hydraulic value is higher than the upper limit of the support hydraulic value range, the hydraulic cylinder is lowered until the measured support hydraulic value drops to the lower limit of the support hydraulic value range and stops falling; when the measured support hydraulic value is lower than the lower limit of the support hydraulic value range, the hydraulic cylinder is lifted until the measured support hydraulic value rises to the upper limit of the support hydraulic value range and stops rising, and the operation is repeated in sequence, thereby suppressing the stretching of the reactor beyond its own thermal expansion and contraction range. The intelligent hydraulic station includes a hydraulic pump, an electric control valve system for controlling the output and input of hydraulic oil to the hydraulic cylinder, an intelligent controller, and an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support. The electronic hydraulic gauge is electrically connected to the intelligent controller, and the intelligent controller is electrically connected to control the hydraulic pump and the electric control valve system; the reactor support force is controlled to be less than 15% of the total weight of the reactor itself and the contents. The supporting force of the reactor is controlled between 5% and 10% of the total weight of the reactor itself and the contents.

[0010] As an optimization, the heat insulation seal is a sealed connection between the corrugated sealing device and the bottom of the vertical cylindrical reduction distillation electric furnace, and ceramic fiber heat insulation cotton is arranged between the corrugated sealing device and the lower support. The heat insulation seal is a corrugated sealing cylinder sealed between the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace and the outer periphery of the lower support below, and a heat-resistant heat-insulating material jacket is arranged between the inner periphery of the corrugated sealing cylinder and the outer periphery of the lower support; the lower support supported by the hydraulic cylinder extends downward from the bottom of the corrugated sealing cylinder.

[0011] The heat-resistant heat-insulating material is ceramic fiber insulation cotton, and a vertical insulation mechanism is arranged between the lower end of the lower support extending downward from the bottom of the corrugated sealing cylinder and the upper end of the hydraulic cylinder. The vertical insulation mechanism is an insulation pipe spaced between the lower end of the lower support and the outer periphery of the upper end of the hydraulic cylinder, and a vertical insulation pad is arranged between the inner periphery of the insulation pipe and the lower end face of the lower support and the upper end face of the hydraulic cylinder. An upper ceramic fiber insulation cotton insulation pipe is arranged in a jacket between the outer periphery of the lower end of the lower support and the inner periphery of the insulation pipe above the vertical pressure-resistant insulation pad, and a lower ceramic fiber insulation cotton insulation pipe is arranged in a jacket between the outer periphery of the upper end of the hydraulic cylinder and the inner periphery of the insulation pipe below the vertical pressure-resistant insulation pad. The vertical pressure-resistant insulation pad is a vertical pressure-resistant insulation pad whose at least middle-layer pad core is made of multiple layers of ceramic fiber insulation cloth. At least one of the upper and lower ends of the insulation pipe is flexibly or fixedly connected to the outer periphery of the lower end of the lower support and one end of the upper end of the hydraulic cylinder.

[0012] The upper end of the corrugated sealing cylinder is sealed and welded to the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylinder type reduction distillation electric furnace, or is sealed and bolted through the upper end blue plate of the corrugated sealing cylinder and the upper heat-resistant sealing gasket and the bolts extending downward from the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylinder type reduction distillation electric furnace. The lower support vertically passes through the vertical hole set at the bottom of the corrugated sealing cylinder, and the peripheral wall of the vertical hole at the bottom of the corrugated sealing cylinder is sealed and welded to the lower support vertically, or the lower blue plate of the lower support vertically sealed and fixed and the upper heat-resistant sealing gasket and the bolts extending downward from the bottom of the corrugated sealing cylinder are sealed and bolted.

[0013] The hard refractory material tray is a hard refractory material tray made of mullite molten cast material or graphite material. The lower end of the reactor is an elliptical head, and the upper end face of the hard refractory material tray is an elliptical concave that fits with the lower end face of the elliptical head. That is, the hard refractory material tray is concave, and the shape of the concave is consistent with the shape of the bottom head of the reactor, and the depth of the concave is consistent with the height of the bottom head of the reactor. The vertical cylindrical reduction distillation electric furnace is downwardly connected or fixed with a bottom bracket, and the automatic vertical support mechanism is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the hydraulic cylinder of the vertical spring support mechanism or the intelligent hydraulic support mechanism is arranged on the bottom bracket.

[0014] The method for inhibiting the stretching of a reactor for sponge titanium production of the present invention is implemented on a vertical cylindrical reduction distillation electric furnace with a resistance wire arranged on the inner circumference and a reactor heated by the furnace. The special feature of the method is that the vertical cylindrical reduction distillation electric furnace supports the reactor by means of a T-shaped lifting bracket with a lower support extending downward from an internal upper support, and the lower support is heat-insulated and sealed to pass through the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, so that the lower support can be freely lifted and lowered along the central vertical hole, while ensuring the heat-insulating seal between the lower support and the peripheral wall of the central vertical hole; a hard refractory material tray for supporting the bottom of the reactor upward is arranged on the upper support, and an automatic vertical support mechanism is arranged at the lower end of the lower support, which can adapt to the thermal expansion and contraction of the reactor itself and does not interfere with the sealing flange between the vertical cylindrical reduction distillation electric furnace and the reactor; the adaptation and non-interference are that the support of the automatic vertical support mechanism can not only meet the needs of the thermal expansion and contraction of the reactor itself, but also effectively inhibit and support the additional stretching beyond the thermal expansion and contraction of the reactor itself, and also does not interfere with the sealing flange, thereby playing a role in inhibiting the stretching of the reactor for sponge titanium production.

[0015] As an optimization, the automatic vertical support mechanism used to support the lower pillar is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the vertical spring support mechanism automatically and synchronously increases the strength of the reactor stretching suppression as the reactor stretching degree increases, and the intelligent hydraulic support mechanism freely sets and automatically adjusts the support strength of the reactor stretching suppression according to the need to suppress the reactor stretching. The reactor support force is controlled to be less than 15% of the total weight of the reactor itself and the contents.

[0016] As an optimization, the intelligent hydraulic support mechanism is a hydraulic cylinder connected to an intelligent hydraulic station that supports the lower support pillar upward; within the travel range, the intelligent hydraulic station sets a reasonable support hydraulic value range according to the thermal expansion and contraction needs of the reactor itself without affecting the reactor sealing support flange; the intelligent hydraulic station is equipped with an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support. When the measured support hydraulic value is higher than the upper limit of the support hydraulic value range, the hydraulic cylinder is lowered until the measured support hydraulic value drops to the lower limit of the support hydraulic value range and stops falling; when the measured support hydraulic value is lower than the lower limit of the support hydraulic value range, the hydraulic cylinder is lifted until the measured support hydraulic value rises to the upper limit of the support hydraulic value range and stops rising, and the operation is repeated in sequence, thereby suppressing the stretching of the reactor beyond its own thermal expansion and contraction range. The intelligent hydraulic station includes a hydraulic pump, an electric control valve system for controlling the output and input of hydraulic oil to the hydraulic cylinder, an intelligent controller, and an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support, the electronic hydraulic gauge is electrically connected to the intelligent controller, and the intelligent controller is electrically connected to control the hydraulic pump and the electric control valve system; the reactor support force is controlled to be less than 15% of the total weight of the reactor itself and the contents. The supporting force of the reactor is controlled between 5% and 10% of the total weight of the reactor itself and the contents.

[0017] As an optimization, the stretching suppression steps of the intelligent hydraulic support mechanism are as follows: Step 1: Lower the hard refractory tray and support seat to the lowest position by manipulating the hydraulic cylinder; Step 2: Place the reactor in a vertical reduction distillation furnace, start the furnace to heat the reactor to the required temperature, and allow the reactor to undergo free thermal expansion deformation. Step 3: Raise the support frame and the hard refractory tray to contact the bottom head of the reactor through the hydraulic cylinder to continuously support the reactor. Step 4: Automatically control the reactor support force through the electronic pressure gauge and intelligent controller of the intelligent hydraulic station.

[0018] As an optimization, the heat insulation seal is a sealed connection between the corrugated sealing device and the bottom of the vertical cylindrical reduction distillation electric furnace, and ceramic fiber heat insulation cotton is arranged between the corrugated sealing device and the lower support. The heat insulation seal is a corrugated sealing cylinder sealed between the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace and the outer periphery of the lower support below, and a heat-resistant heat-insulating material jacket is arranged between the inner periphery of the corrugated sealing cylinder and the outer periphery of the lower support; the lower support supported by the hydraulic cylinder extends downward from the bottom of the corrugated sealing cylinder.

[0019] The upper end of the corrugated sealing cylinder is sealed and welded to the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, or is sealed and bolted through the upper blue plate of the corrugated sealing cylinder and the heat-resistant sealing gasket on it and the bolts extending downward from the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace; the lower support vertically passes through the vertical hole set at the bottom of the corrugated sealing cylinder, and the peripheral wall of the vertical hole at the bottom of the corrugated sealing cylinder and the lower support are sealed and welded, or the lower blue plate on which the lower support is vertically sealed and the heat-resistant sealing gasket on it and the bolts extending downward from the bottom of the corrugated sealing cylinder are sealed and bolted.

[0020] The hard refractory tray is a hard refractory tray made of mullite casting material or graphite material. The lower end of the reactor is an elliptical head, and the upper end surface of the hard refractory tray is an elliptical concave that fits the lower end surface of the elliptical head. The vertical cylindrical reduction distillation electric furnace is connected downward or fixed with a bottom bracket, and the automatic vertical support mechanism for the lower support is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the hydraulic cylinder of the vertical spring support mechanism or the intelligent hydraulic support mechanism is set on the bottom bracket.

[0021] The method for inhibiting the stretching of a reactor for sponge titanium production of the present invention is implemented on a vertical cylindrical reduction distillation electric furnace with a resistance wire arranged on the inner circumference and a reactor heated by the furnace. The difference is that the vertical cylindrical reduction distillation electric furnace supports the reactor by means of a T-shaped lifting bracket with a lower support extending downward from an internal upper support, and the lower support is insulated and sealed to pass through the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, so that the lower support can be freely lifted and lowered along the central vertical hole, while ensuring the thermal insulation seal between the lower support and the peripheral wall of the central vertical hole; a hard refractory material tray for supporting the bottom of the reactor upward is arranged on the upper support, and an automatic vertical support mechanism is arranged at the lower end of the lower support, which can adapt to the thermal expansion and contraction of the reactor itself and does not interfere with the sealing flange between the vertical cylindrical reduction distillation electric furnace and the reactor; the adaptation and non-interference are that the support of the automatic vertical support mechanism can not only meet the needs of the thermal expansion and contraction of the reactor itself, but also effectively inhibit and support the additional stretching beyond the thermal expansion and contraction of the reactor itself, and also does not interfere with the sealing flange, thereby playing a role in inhibiting the stretching of the reactor for sponge titanium production. That is, the hard refractory tray is placed on the upper support, and the lower support of the upper support is placed on the hydraulic cylinder. It has the advantages of reducing the stress generated by the reactor's own weight and the weight of the contents, suppressing the tensile deformation caused by creep high temperature, extending the service life of the reactor, being easy to operate, and not hindering the sealing flange at the top of the reduction distillation electric furnace.

[0022] As an optimization, the automatic vertical support mechanism used to support the lower pillar is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the vertical spring support mechanism automatically and synchronously increases the strength of the reactor stretching suppression as the reactor stretches, without the need for additional control and adjustment, and the intelligent hydraulic support mechanism freely sets and automatically adjusts the support strength of the reactor stretching suppression according to the need to suppress the reactor stretching. The reactor support force is controlled to be less than 15% of the total weight of the reactor itself and the contents.

[0023] As an optimization, the intelligent hydraulic support mechanism is a hydraulic cylinder connected to an intelligent hydraulic station that supports the lower support pillar upward; within the travel range, the intelligent hydraulic station sets a reasonable support hydraulic value range according to the thermal expansion and contraction needs of the reactor itself without affecting the reactor sealing support flange; the intelligent hydraulic station is equipped with an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support. When the measured support hydraulic value is higher than the upper limit of the support hydraulic value range, the hydraulic cylinder is lowered until the measured support hydraulic value drops to the lower limit of the support hydraulic value range and stops falling; when the measured support hydraulic value is lower than the lower limit of the support hydraulic value range, the hydraulic cylinder is lifted until the measured support hydraulic value rises to the upper limit of the support hydraulic value range and stops rising, and the operation is repeated in sequence, thereby suppressing the stretching of the reactor beyond its own thermal expansion and contraction range. The intelligent hydraulic station includes a hydraulic pump, an electronic control valve system for controlling the output and input of hydraulic oil to the hydraulic cylinder, an intelligent controller, and an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support, the electronic hydraulic gauge is electrically connected to the intelligent controller, and the intelligent controller is electrically connected to control the hydraulic pump and the electronic control valve system; the reactor support force is controlled between the reactor's own weight and the total weight of the contents of 5% to 10%.

[0024] As an optimization, the stretching suppression steps of the intelligent hydraulic support mechanism are as follows: Step 1: Lower the hard refractory tray and support seat to the lowest position by manipulating the hydraulic cylinder; Step 2: Place the reactor in a vertical reduction distillation furnace, start the furnace to heat the reactor to the required temperature, and allow the reactor to undergo free thermal expansion deformation. Step 3: Raise the support frame and the hard refractory tray to contact the bottom head of the reactor through the hydraulic cylinder to continuously support the reactor. Step 4: Automatically control the reactor support force through the electronic pressure gauge and intelligent controller of the intelligent hydraulic station.

[0025] As an optimization, the heat insulation seal is a sealed connection between the corrugated sealing device and the bottom of the vertical cylindrical reduction distillation electric furnace, and ceramic fiber heat insulation cotton is arranged between the corrugated sealing device and the lower support. The heat insulation seal is a corrugated sealing cylinder sealed between the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace and the outer periphery of the lower support below, and a heat-resistant heat-insulating material jacket is arranged between the inner periphery of the corrugated sealing cylinder and the outer periphery of the lower support; the lower support supported by the hydraulic cylinder extends downward from the bottom of the corrugated sealing cylinder.

[0026] The upper end of the corrugated sealing cylinder is sealed and welded to the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, or is sealed and bolted through the upper blue plate of the corrugated sealing cylinder and the heat-resistant sealing gasket on it and the bolts extending downward from the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace; the lower support vertically passes through the vertical hole set at the bottom of the corrugated sealing cylinder, and the peripheral wall of the vertical hole at the bottom of the corrugated sealing cylinder and the lower support are sealed and welded, or the lower blue plate on which the lower support is vertically sealed and the heat-resistant sealing gasket on it and the bolts extending downward from the bottom of the corrugated sealing cylinder are sealed and bolted.

[0027] The hard refractory tray is a hard refractory tray made of mullite casting material or graphite material. The lower end of the reactor is an elliptical head, and the upper end surface of the hard refractory tray is an elliptical concave that fits the lower end surface of the elliptical head. The vertical cylindrical reduction distillation electric furnace is connected downward or fixed with a bottom bracket, and the automatic vertical support mechanism for the lower support is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the hydraulic cylinder of the vertical spring support mechanism or the intelligent hydraulic support mechanism is set on the bottom bracket.

[0028] In summary, the device of the present invention is mainly composed of a hard refractory material tray, a lifting bracket, a hydraulic cylinder, a corrugated sealing device, an intelligent hydraulic station and its oil pump and an intelligent controller. The operating steps of the method of the present invention are: the first step: lowering the hard refractory material tray and the lifting bracket to the lowest position by controlling the hydraulic cylinder; the second step: placing the reactor in a vertical reduction distillation electric furnace, starting the electric furnace to heat the reactor to the required temperature, and allowing the reactor to undergo free thermal expansion deformation. The third step: using the hydraulic cylinder to raise the lifting bracket and the hard refractory material tray to contact the bottom head of the reactor to continuously support the reactor. The fourth step: automatically control the reactor support force through the electronic pressure gauge and intelligent controller of the intelligent hydraulic station. The reactor support force is controlled between 5% and 10% of the reactor's own weight and the total weight of the contents.

[0029] After adopting the above technical scheme, the present invention has the advantages of suppressing the stretching device and method of the reactor for sponge titanium production by reducing the stress produced by the reactor's own weight and the weight of the contents, thereby suppressing the tensile deformation caused by creep high temperature, extending the service life of the reactor, being easy to operate, and not interfering with the sealing flange at the upper end of the reduction distillation electric furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a structural schematic diagram of the reactor stretching device for inhibiting the production of sponge titanium of the present invention. The numbers in the figure are: 11 hard refractory material tray, 12 T-type lifting bracket, 13 hydraulic cylinder, 14 intelligent hydraulic station, 15 electronic hydraulic gauge, 16 hydraulic oil pipe, 17 corrugated sealing cylinder, 18 ceramic fiber insulation cotton, 20 reactor, 30 vertical cylinder reduction distillation electric furnace, 31 resistance wire, 10 bottom bracket, H3 reactor bottom head height, H reactor bottom head wall thickness, H0 vertical cylinder reduction distillation electric furnace upper end sealing blue plate top to vertical cylinder reduction distillation electric furnace reactor lower end distance, H1 vertical cylinder reduction distillation electric furnace upper end sealing blue plate top to vertical cylinder reduction distillation electric furnace reactor inner cavity lower end distance. DETAILED DESCRIPTION

[0031] As shown in the figure, the device for suppressing the stretching of the reactor for producing titanium sponge of the present invention comprises a vertical cylindrical reduction distillation electric furnace 30 with a resistance wire 31 arranged on the inner periphery of the heating reactor 20; a T-shaped lifting bracket 12 with an upper support extending downward from a lower support is arranged in the vertical cylindrical reduction distillation electric furnace 30, the lower support is thermally insulated and sealed downward and passes through the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace 30, a hard refractory material tray 11 for supporting the reactor 20 upward is arranged on the upper support, and an automatic vertical support mechanism is arranged at the lower end of the lower support mechanism that can adapt to the thermal expansion and contraction of the reactor 20 itself and does not interfere with the sealing flange between the vertical cylindrical reduction distillation electric furnace 30 and the reactor 20; the adaptation and non-interference are that the support of the automatic vertical support mechanism can not only meet the needs of the thermal expansion and contraction of the reactor 20 itself, but also effectively suppress the additional stretching beyond the thermal expansion and contraction of the reactor 20 itself, and also do not interfere with the sealing flange, thereby playing the role of suppressing the stretching of the reactor for producing titanium sponge. That is, the hard refractory material tray is placed on the upper support, and the lower support of the upper support is placed on the hydraulic cylinder. It has the advantages of reducing the stress produced by the reactor's own weight and the weight of the contents, thereby suppressing the tensile deformation caused by creep high temperature, extending the service life of the reactor, being easy to operate, and not interfering with the sealing flange on the upper end of the reduction distillation electric furnace.

[0032] The automatic vertical support mechanism for the lower support is an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor, and can also be a vertical spring support mechanism; the vertical spring support mechanism automatically and synchronously increases the tensile suppression strength of the reactor as the stretching degree of the reactor increases, without the need for additional control and adjustment, and the intelligent hydraulic support mechanism freely sets and automatically adjusts the support strength for the tensile suppression of the reactor according to the need to suppress the stretching of the reactor. The intelligent hydraulic support mechanism is a hydraulic cylinder 13 connected to an intelligent hydraulic station 14 that supports the lower support upward. Within the travel range, the intelligent hydraulic station sets a reasonable support hydraulic value range according to the thermal expansion and contraction needs of the reactor itself without affecting the sealing support flange of the reactor; the intelligent hydraulic station is equipped with an electronic hydraulic meter for real-time detection of the hydraulic pressure of the hydraulic cylinder support. When the measured support hydraulic value is higher than the upper limit of the support hydraulic value range, the hydraulic cylinder is lowered until the measured support hydraulic value drops to the lower limit of the support hydraulic value range, and the drop stops; when the measured support hydraulic value is lower than the lower limit of the support hydraulic value range, the hydraulic cylinder is lifted until the measured support hydraulic value rises to the upper limit of the support hydraulic value range, and the rise stops, and the operation is repeated in sequence, thereby suppressing the stretching of the reactor beyond its own thermal expansion and contraction range. The intelligent hydraulic station 14 includes a hydraulic pump, an electronically controlled valve system for controlling the input and output of hydraulic oil to the hydraulic cylinder 13, an intelligent controller, and an electronic hydraulic gauge 15 for real-time detection of the hydraulic pressure supporting the hydraulic cylinder 13. The electronic hydraulic gauge 15 is electrically connected to the intelligent controller, and the intelligent controller is electrically connected to control the hydraulic pump and the electronically controlled valve system. The reactor support force is controlled to be less than 15% of the total weight of the reactor itself and the contents. The reactor support force is controlled to be between 5% and 10% of the total weight of the reactor itself and the contents.

[0033] The thermal insulation seal is a sealed connection between the corrugated sealing device and the bottom of the vertical cylindrical reduction distillation electric furnace 30, and ceramic fiber insulation cotton is arranged between the corrugated sealing device and the lower pillar. The thermal insulation seal is a corrugated sealing cylinder 17 sealed between the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace 30 and the outer periphery of the lower pillar below, and a heat-resistant heat-insulating material jacket is arranged between the inner periphery of the corrugated sealing cylinder 17 and the outer periphery of the lower pillar; the lower pillar supported by the hydraulic cylinder 13 extends downward from the bottom of the corrugated sealing cylinder 17. The heat-resistant heat-insulating material is ceramic fiber insulation cotton 18, and a vertical insulation mechanism is arranged between the lower end of the lower pillar extending downward from the bottom of the corrugated sealing cylinder and the upper end of the hydraulic cylinder 13. The vertical heat insulation mechanism is a heat preservation pipe spaced between the lower end of the lower support and the outer periphery of the upper end of the hydraulic cylinder, a vertical heat insulation pad is arranged between the inner periphery of the heat preservation pipe and the lower end surface of the lower support and the upper end surface of the hydraulic cylinder, an upper ceramic fiber heat insulation cotton heat insulation pipe is arranged between the outer periphery of the lower end of the lower support and the inner periphery of the heat preservation pipe above the vertical pressure-resistant heat insulation pad, and a lower ceramic fiber heat insulation cotton heat insulation pipe is arranged between the outer periphery of the upper end of the hydraulic cylinder and the inner periphery of the heat preservation pipe below the vertical pressure-resistant heat insulation pad. The vertical pressure-resistant heat insulation pad is a vertical pressure-resistant heat insulation pad whose at least middle layer pad core is made of multiple layers of ceramic fiber heat insulation cloth. At least one of the upper and lower ends of the heat preservation pipe is flexibly or fixedly connected to the outer periphery of the lower end of the lower support and one end of the upper end of the hydraulic cylinder.

[0034] The upper end of the corrugated sealing cylinder 17 is sealed and welded to the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace 30, or is sealed and bolted through the upper blue plate of the corrugated sealing cylinder and the heat-resistant sealing gasket on it and the bolts extending downward from the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace; the lower support vertically passes through the vertical hole set at the bottom of the corrugated sealing cylinder 17, and the peripheral wall of the vertical hole at the bottom of the corrugated sealing cylinder 17 and the lower support are sealed and welded, or the lower blue plate on which the lower support is vertically sealed and fixed and the heat-resistant sealing gasket on it and the bolts extending downward from the bottom of the corrugated sealing cylinder are sealed and bolted.

[0035] The hard refractory material tray 11 is a hard refractory material tray 11 made of mullite molten cast material or graphite material.

[0036] The lower end of the reactor 20 is an elliptical head, and the upper end surface of the hard refractory tray 11 is an elliptical concave that fits with the lower end surface of the elliptical head. That is, the hard refractory tray is concave, and the shape of the concave is consistent with the shape of the reactor bottom head, and the depth of the concave is consistent with the height of the reactor bottom head.

[0037] The vertical cylindrical reduction distillation electric furnace 30 is downwardly connected to or fixed with a bottom bracket 10. The automatic vertical support mechanism is an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor, or it can be a vertical spring support mechanism; the hydraulic cylinder (or vertical spring support mechanism) of the intelligent hydraulic support mechanism is arranged on the bottom bracket 10.

[0038] The method for inhibiting the stretching of a reactor for sponge titanium production of the present invention is implemented on a vertical cylindrical reduction distillation electric furnace with a resistance wire arranged on the inner circumference and a reactor heated by the furnace, and is characterized in that the vertical cylindrical reduction distillation electric furnace supports the reactor in a stretch-inhibiting manner through a T-shaped lifting bracket with a lower support extending downward from an internal upper support, and the lower support is thermally insulated and sealed to pass through the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, so that the lower support can be freely lifted and lowered along the central vertical hole, while also ensuring the thermal insulation seal between the lower support and the peripheral wall of the central vertical hole; a hard refractory material tray for supporting the bottom of the reactor upward is arranged on the upper support, and an automatic vertical support mechanism is arranged at the lower end of the lower support, which can adapt to the thermal expansion and contraction of the reactor itself and does not interfere with the sealing flange between the vertical cylindrical reduction distillation electric furnace and the reactor; the adaptation and non-interference are that the support of the automatic vertical support mechanism can not only meet the needs of the thermal expansion and contraction of the reactor itself, but also effectively inhibit and support the additional stretching beyond the thermal expansion and contraction of the reactor itself, and also does not interfere with the sealing flange, thereby playing a role in inhibiting the stretching of the reactor for sponge titanium production. That is, the hard refractory tray is placed on the upper support, and the lower support of the upper support is placed on the hydraulic cylinder. It has the advantages of reducing the stress generated by the reactor's own weight and the weight of the contents, suppressing the tensile deformation caused by creep high temperature, extending the service life of the reactor, being easy to operate, and not hindering the sealing flange at the top of the reduction distillation electric furnace.

[0039] The automatic vertical support mechanism used to support the lower pillar is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the vertical spring support mechanism automatically and synchronously increases the strength of suppressing the stretching of the reactor as the degree of stretching of the reactor increases, without the need for additional control and adjustment, and the intelligent hydraulic support mechanism can freely set and automatically adjust the support strength for suppressing the stretching of the reactor according to the need to suppress the stretching of the reactor.

[0040] The intelligent hydraulic support mechanism is a hydraulic cylinder connected to an intelligent hydraulic station that supports the lower support pillar upward; within the travel range, the intelligent hydraulic station sets a reasonable support hydraulic value range according to the thermal expansion and contraction needs of the reactor itself without affecting the reactor sealing support flange; the intelligent hydraulic station is equipped with an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support. When the measured support hydraulic value is higher than the upper limit of the support hydraulic value range, the hydraulic cylinder is lowered until the measured support hydraulic value drops to the lower limit of the support hydraulic value range and stops falling; when the measured support hydraulic value is lower than the lower limit of the support hydraulic value range, the hydraulic cylinder is lifted until the measured support hydraulic value rises to the upper limit of the support hydraulic value range and stops rising, and the operation is repeated in sequence, thereby suppressing the stretching of the reactor beyond its own thermal expansion and contraction range. The intelligent hydraulic station includes a hydraulic pump, an electric control valve system for controlling the output and input of hydraulic oil to the hydraulic cylinder, an intelligent controller, and an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support, the electronic hydraulic gauge is electrically connected to the intelligent controller, and the intelligent controller is electrically connected to control the hydraulic pump and the electric control valve system; the reactor support force is controlled to be less than 15% of the total weight of the reactor itself and the contents. The supporting force of the reactor is controlled between 5% and 10% of the total weight of the reactor itself and the contents.

[0041] The stretching suppression steps of the intelligent hydraulic support mechanism are as follows: Step 1: Lower the hard refractory material tray and the support seat to the lowest position by controlling the hydraulic cylinder; Step 2: Place the reactor in the vertical reduction distillation electric furnace, start the electric furnace to heat the reactor to the required temperature, and allow the reactor to undergo free thermal expansion deformation. Step 3: Raise the support frame and the hard refractory material tray to contact the bottom head of the reactor through the hydraulic cylinder to continuously support the reactor. Step 4: Automatically control the reactor support force through the electronic pressure gauge and intelligent controller of the intelligent hydraulic station.

[0042] The heat insulation seal is a sealed connection between the corrugated sealing device and the bottom of the vertical cylinder type reduction distillation electric furnace, and ceramic fiber heat insulation cotton is arranged between the corrugated sealing device and the lower support. The heat insulation seal is a corrugated sealing cylinder sealed between the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylinder type reduction distillation electric furnace and the outer periphery of the lower support below, and a heat-resistant heat-insulating material jacket is arranged between the inner periphery of the corrugated sealing cylinder and the outer periphery of the lower support; the lower support supported by the hydraulic cylinder extends downwardly from the bottom of the corrugated sealing cylinder.

[0043] The upper end of the corrugated sealing cylinder is sealed and welded to the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, or is sealed and bolted through the upper blue plate of the corrugated sealing cylinder and the heat-resistant sealing gasket on it and the bolts extending downward from the outer peripheral wall of the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace; the lower support vertically passes through the vertical hole set at the bottom of the corrugated sealing cylinder, and the peripheral wall of the vertical hole at the bottom of the corrugated sealing cylinder and the lower support are sealed and welded, or the lower blue plate on which the lower support is vertically sealed and the heat-resistant sealing gasket on it and the bolts extending downward from the bottom of the corrugated sealing cylinder are sealed and bolted.

[0044] The hard refractory tray is a hard refractory tray made of mullite casting material or graphite material. The lower end of the reactor is an elliptical head, and the upper end surface of the hard refractory tray is an elliptical concave that fits the lower end surface of the elliptical head. The vertical cylindrical reduction distillation electric furnace is connected downward or fixed with a bottom bracket, and the automatic vertical support mechanism for the lower support is a vertical spring support mechanism or an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the hydraulic cylinder of the vertical spring support mechanism or the intelligent hydraulic support mechanism is set on the bottom bracket.

[0045] That is: the new device is mainly composed of a hard refractory material tray, a lifting bracket, a hydraulic cylinder, a corrugated sealing device, an intelligent hydraulic station and its oil pump and an intelligent controller. The operating steps of the present invention are: the first step: lower the hard refractory material tray and the lifting bracket to the lowest position by controlling the hydraulic cylinder; the second step: place the reactor in a vertical reduction distillation electric furnace, start the electric furnace to heat the reactor to the required temperature, and allow the reactor to undergo free thermal expansion and deformation. The third step: raise the lifting bracket and the hard refractory material tray to contact the bottom head of the reactor through the hydraulic cylinder to continuously support the reactor. The fourth step: automatically control the reactor support force through the electronic pressure gauge and intelligent controller of the intelligent hydraulic station. The reactor support force is controlled between 5% and 10% of the reactor's own weight and the total weight of the contents.

[0046] In summary, the reactor stretching device and method for inhibiting sponge titanium production of the present invention has the advantages of suppressing the tensile deformation caused by creep high temperature by reducing the stress produced by the reactor's own weight and the weight of its contents, extending the service life of the reactor, being easy to operate, and not interfering with the sealing flange at the upper end of the reduction distillation electric furnace.

Claims

1. A reactor stretching device for inhibiting the production of sponge titanium, comprising a vertical cylindrical reduction distillation electric furnace with a resistance wire arranged on the inner periphery of the reactor for heating, characterized in that A T-shaped lifting bracket with an upper support extending downward from a lower support is arranged in the vertical cylindrical reduction distillation electric furnace, and the lower support is thermally insulated and sealed downward and passes through the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace. A hard refractory material tray for supporting the reactor upward is arranged on the upper support, and an automatic vertical support mechanism is arranged at the lower end of the lower support mechanism, which can adapt to the thermal expansion and contraction of the reactor itself and does not interfere with the sealing flange between the vertical cylindrical reduction distillation electric furnace and the reactor; the adaptation and non-interference are that the support of the automatic vertical support mechanism can not only meet the needs of the thermal expansion and contraction of the reactor itself, but also effectively suppress the additional stretching beyond the thermal expansion and contraction of the reactor itself, and also does not interfere with the sealing flange, thereby playing a role in suppressing the stretching of the reactor for sponge titanium production; The automatic vertical support mechanism used to support the lower pillar is an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the intelligent hydraulic support mechanism can freely set and automatically adjust the support strength for suppressing the stretching of the reactor according to the need to suppress the stretching of the reactor; The intelligent hydraulic support mechanism is a hydraulic cylinder connected to an intelligent hydraulic station that supports the lower support pillar upward; within the travel range, the intelligent hydraulic station sets a reasonable support hydraulic value range based on the thermal expansion and contraction needs of the reactor itself without affecting the reactor sealing support flange; the intelligent hydraulic station is equipped with an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support; when the measured support hydraulic value is higher than the upper limit of the support hydraulic value range, the hydraulic cylinder is lowered until the measured support hydraulic value drops to the lower limit of the support hydraulic value range and stops lowering; when the measured support hydraulic value is lower than the lower limit of the support hydraulic value range, the hydraulic cylinder is lifted until the measured support hydraulic value rises to the upper limit of the support hydraulic value range and stops rising, and the operation is repeated in sequence, thereby suppressing the stretching of the reactor beyond its own thermal expansion and contraction range.

2. The reactor stretching device for inhibiting titanium sponge production according to claim 1, characterized in that The stretching suppression steps of the intelligent hydraulic support mechanism are as follows: Step 1: lower the hard refractory material tray and the support seat to the lowest position by controlling the hydraulic cylinder; Step 2: place the reactor in a vertical reduction distillation electric furnace, start the electric furnace to heat the reactor to the required temperature, and allow the reactor to undergo free thermal expansion deformation; Step 3: Use a hydraulic cylinder to raise the support frame and the hard refractory tray until they are in contact with the bottom head of the reactor to continuously support the reactor; Step 4: Automatically control the reactor support force through the electronic pressure gauge and intelligent controller of the intelligent hydraulic station.

3. The reactor stretching device for inhibiting titanium sponge production according to claim 1, characterized in that The heat-insulating seal is a sealed connection between the corrugated sealing device and the bottom of the vertical cylindrical reduction distillation electric furnace, and ceramic fiber heat-insulating cotton is arranged between the corrugated sealing device and the lower support.

4. A method for inhibiting the stretching of a reactor for the production of titanium sponge, which is implemented on a vertical cylindrical reduction distillation electric furnace with a resistance wire arranged on the inner circumference and a reactor heated by the furnace, characterized in that The vertical cylindrical reduction distillation electric furnace supports the reactor in a tensile-inhibiting manner through a T-shaped lifting bracket with a lower support extending downward from an internal upper support, and the lower support is thermally insulated and sealed to pass through the central vertical hole on the bottom surface of the vertical cylindrical reduction distillation electric furnace, so that the lower support can be freely lifted and lowered along the central vertical hole, while ensuring thermal insulation and sealing between the lower support and the peripheral wall of the central vertical hole; a hard refractory material tray for supporting the bottom of the reactor upward is arranged on the upper support, and an automatic vertical support mechanism is arranged at the lower end of the lower support, which can adapt to the thermal expansion and contraction of the reactor itself and does not interfere with the sealing flange between the vertical cylindrical reduction distillation electric furnace and the reactor; the adaptation and non-interference are that the support of the automatic vertical support mechanism can not only meet the needs of the thermal expansion and contraction of the reactor itself, but also effectively suppress the additional stretching beyond the thermal expansion and contraction of the reactor itself, and also does not interfere with the sealing flange, thereby playing a role in suppressing the stretching of the reactor for sponge titanium production; The automatic vertical support mechanism of the supporting lower pillar is an intelligent hydraulic support mechanism that can adapt to the natural thermal expansion and contraction of the reactor; the intelligent hydraulic support mechanism can freely set and automatically adjust the support strength for suppressing the stretching of the reactor according to the need to suppress the stretching of the reactor; The intelligent hydraulic support mechanism is a hydraulic cylinder connected to an intelligent hydraulic station that supports the lower support pillar upward; within the travel range, the intelligent hydraulic station sets a reasonable support hydraulic value range based on the thermal expansion and contraction needs of the reactor itself without affecting the reactor sealing support flange; the intelligent hydraulic station is equipped with an electronic hydraulic gauge for real-time detection of the hydraulic pressure of the hydraulic cylinder support; when the measured support hydraulic value is higher than the upper limit of the support hydraulic value range, the hydraulic cylinder is lowered until the measured support hydraulic value drops to the lower limit of the support hydraulic value range and stops lowering; when the measured support hydraulic value is lower than the lower limit of the support hydraulic value range, the hydraulic cylinder is lifted until the measured support hydraulic value rises to the upper limit of the support hydraulic value range and stops rising, and the operation is repeated in sequence, thereby suppressing the stretching of the reactor beyond its own thermal expansion and contraction range.

5. The method for stretching a reactor for inhibiting titanium sponge production according to claim 4, characterized in that The stretching suppression steps of the intelligent hydraulic support mechanism are as follows: Step 1: lower the hard refractory material tray and the support seat to the lowest position by controlling the hydraulic cylinder; Step 2: place the reactor in a vertical reduction distillation electric furnace, start the electric furnace to heat the reactor to the required temperature, and allow the reactor to undergo free thermal expansion deformation; Step 3: Use a hydraulic cylinder to raise the support frame and the hard refractory tray until they are in contact with the bottom head of the reactor to continuously support the reactor; Step 4: Automatically control the reactor support force through the electronic pressure gauge and intelligent controller of the intelligent hydraulic station.

6. The method for stretching a reactor for inhibiting titanium sponge production according to claim 4, characterized in that The heat-insulating seal is a sealed connection between the corrugated sealing device and the bottom of the vertical cylindrical reduction distillation electric furnace, and ceramic fiber heat-insulating cotton is arranged between the corrugated sealing device and the lower support.

Images