阅读说明：本技术 用于海绵钛还原生产中对大盖冷却的汽化加料装置 (Vaporization feeding device for cooling large cover in titanium sponge reduction production ) 是由 邹义 任登池 李金泽 詹健 于 2021-03-26 设计创作，主要内容包括：用于海绵钛还原生产中对大盖冷却的汽化加料装置,主要由反应器、大盖底板、大盖筒体、大盖面板、三通管、加热器、氩气管和保温层组成,大盖面板与大盖筒体和大盖底板形成封闭腔体,腔体内填充保温层,在大盖底板上设有换热盘管,换热盘管两端设有分别设有进料管和汽化出管,在汽化管的出口与金属软管连接,金属软管的另外一端与三通管的立管连接。在海绵钛进入还原前,组装好各路管道,把三通管的横管密封,向进料管内通入常温液体四氯化钛,四氯化钛在大盖地板处受热升温,由液态变为气态,气态的四氯化钛从汽化出管流出,经过金属软管进入三通管,然后进入反应器内进行气体加料。解决海绵钛生产过程中还原期间加料集中和大盖被热腐蚀等问题。(A vaporization feeding device for cooling a large cover in titanium sponge reduction production mainly comprises a reactor, a large cover bottom plate, a large cover barrel, a large cover panel, a three-way pipe, a heater, an argon pipe and a heat preservation layer, wherein the large cover panel, the large cover barrel and the large cover bottom plate form a closed cavity, the heat preservation layer is filled in the cavity, the large cover bottom plate is provided with a heat exchange coil pipe, the two ends of the heat exchange coil pipe are respectively provided with a feeding pipe and a vaporization outlet pipe, the outlet of the vaporization pipe is connected with a metal hose, and the other end of the metal hose is connected with a vertical pipe of the three-way pipe. Before the titanium sponge enters reduction, all pipelines are assembled, the transverse pipe of the three-way pipe is sealed, normal-temperature liquid titanium tetrachloride is introduced into the feeding pipe, the titanium tetrachloride is heated at the floor of the large cover and is heated to be changed into gas from liquid state, the gas titanium tetrachloride flows out from the vaporization outlet pipe, enters the three-way pipe through the metal hose and then enters the reactor for gas feeding. The problems of material feeding concentration, hot corrosion of a large cover and the like during reduction in the production process of the titanium sponge are solved.)

1. A vaporization feeding device for cooling a large cover in the reduction production of titanium sponge mainly comprises a reactor (1), a large cover bottom plate (2), a large cover cylinder (3), a large cover panel (4), a three-way pipe (8), a heater (9), an argon pipe (10) and a heat-insulating layer (11); be provided with big lid barrel (2) on big lid bottom plate (2), heater (9), three-way pipe (8) and argon gas pipe (10), wherein three-way pipe (8) and argon gas pipe (10) pass big lid bottom plate (2), and big capping board (4) are connected with big lid barrel (3) upper end, and big capping board (4) and big lid barrel (3) and big lid bottom plate (2) form the closed cavity, fill heat preservation (11), its characterized in that in the cavity: a heat exchange coil (12) is arranged on the bottom plate of the large cover, and a feeding pipe (6) and a vaporization outlet pipe (5) are respectively arranged at two ends of the heat exchange coil (12); the outlet of the vaporization pipe (5) is connected with one end of a metal hose (7) through a flange, and the other end of the metal hose (7) is connected with a vertical pipe of a three-way pipe (8) through a flange; the feeding pipe (6) is connected with a feeding system.

Technical Field

The invention relates to a production device of titanium sponge, in particular to a vaporization charging device for cooling a large cover in the reduction production of titanium sponge.

Background

The titanium tetrachloride is produced by magnesium in an industrial mode, the magnesium is used for reducing the titanium tetrachloride, the titanium tetrachloride is an exothermic reaction, other heat is discharged out of a reaction system except for partial heat maintaining reaction, particularly in the later stage of reduction and charging, the magnesium content in the system is reduced, the titanium sponge content is increased, the heat conductivity of the titanium sponge is much lower than that of magnesium, heat is directly radiated to a bottom plate of a large cover, the bottom plate of the large cover is corroded by heat, and impurity iron is mixed into the product, so that the iron content in the product is higher; during the reduction period, the heat dissipation of the reaction is not timely, the feeding point is concentrated, the temperature is higher, the product is sintered, and MgCl is sandwiched₂The problems of excessive hard blocks, increase of hard block amount and compact product structure are solved, so that the qualification rate of the product is seriously influenced, and the production cost of the titanium sponge is increased.

Disclosure of Invention

The invention aims to solve the technical problems of material feeding concentration and hot corrosion of a cover during reduction in the production process of titanium sponge.

In order to solve the technical problems, the invention adopts the following technical scheme:

the vaporization feeding device for cooling the large cover in the reduction production of the titanium sponge mainly comprises a reactor 1, a large cover bottom plate 2, a large cover cylinder 3, a large cover panel 4, a vaporization outlet pipe 5, a feeding pipe 6, a three-way pipe 8, a heater 9, an argon pipe 10 and a heat-insulating layer 11; the large cover bottom plate 2 is provided with a large cover cylinder 2, a heater 9, a three-way pipe 8 and an argon pipe 10, wherein the three-way pipe 8 and the argon pipe 10 penetrate through the large cover bottom plate 2, the large cover panel 4 is connected with the upper end of the large cover cylinder 3, the large cover panel 4, the large cover cylinder 3 and the large cover bottom plate 2 form a closed cavity, and a heat insulation layer 11 is filled in the cavity;

a heat exchange coil 12 is arranged on the bottom plate of the large cover, and a feeding pipe 6 and a vaporization outlet pipe 5 are respectively arranged at two ends of the heat exchange coil 12; the outlet of the vaporization pipe 5 is connected with one end of a metal hose 7 through a flange, and the other end of the metal hose 7 is connected with a vertical pipe of a three-way pipe 8 through a flange; the feed pipe 6 is connected to a feeding system.

The invention has the following advantages and positive effects:

1. the invention realizes the heat dissipation of the bottom plate of the large cover, avoids the hot corrosion of the bottom plate of the large cover, prolongs the service life of the large cover, reduces the content of impurity iron in the titanium sponge, and improves the quality of the titanium sponge product.

2. The invention realizes the vaporization charging in the reduction production period, avoids the charging concentration, improves the titanium sponge lump structure, has loose product structure and shortens the time of distillation to Mg and MgCl₂The evaporation time of the method is shortened, and the distillation production period of the titanium sponge is shortened.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1-reactor, 2-big cover bottom plate, 3-big cover cylinder, 4-big cover panel, 5-vaporization outlet pipe, 6-feeding pipe, 7-metal hose, 8-three-way pipe, 9-heater, 10-argon pipe, 11-heat preservation layer and 12-heat exchange coil.

Detailed Description

The present invention will be described in further detail with reference to the drawings, but it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made based on the knowledge and conventional practices of the ordinary skill in the art are included in the scope of the present invention without departing from the technical spirit of the present invention.

As shown in fig. 1, the vaporization charging device for cooling the large cover in the reduction production of titanium sponge mainly comprises a reactor 1, a large cover bottom plate 2, a large cover cylinder 3, a large cover panel 4, a vaporization outlet pipe 5, a charging pipe 6, a three-way pipe 8, a heater 9, an argon pipe 10 and a heat-insulating layer 11; the large cover bottom plate 2 is provided with a large cover cylinder 2, a heater 9, a three-way pipe 8 and an argon pipe 10, wherein the three-way pipe 8 and the argon pipe 10 penetrate through the large cover bottom plate 2, the large cover panel 4 is connected with the upper end of the large cover cylinder 3, the large cover panel 4, the large cover cylinder 3 and the large cover bottom plate 2 form a closed cavity, and a heat insulation layer 11 is filled in the cavity; a heat exchange coil 12 is arranged on the bottom plate of the large cover, and a feeding pipe 6 and a vaporization outlet pipe 5 are respectively arranged at two ends of the heat exchange coil 12; the outlet of the vaporization pipe 5 is connected with one end of a metal hose 7 through a flange, and the other end of the metal hose 7 is connected with a vertical pipe of a three-way pipe 8 through a flange; the feed pipe 6 is connected to a feeding system.

The metal hose 7 is made of high-temperature resistant stainless steel and has the functions of preventing the corrosion of gas titanium tetrachloride at high temperature and preventing the burst of the hose.

Before the titanium sponge enters reduction, all pipelines are assembled, the transverse pipe of the three-way pipe 8 is sealed, normal-temperature liquid titanium tetrachloride is introduced into the feeding pipe 6, the titanium tetrachloride is heated at the position of the large cover floor 2 and is heated to be changed from liquid state to gaseous state, the gaseous titanium tetrachloride flows out from the vaporization outlet pipe 5, enters the three-way pipe 8 through the metal hose 7 and then enters the reactor for gas feeding.