阅读说明：本技术 一种用于海绵钛还原生产中还原蒸馏炉 (Reduction distillation furnace used in titanium sponge reduction production ) 是由 张履国 李斗良 舒煜 孙榜怀 张劲松 李金泽 于 2019-12-04 设计创作，主要内容包括：一种用于海绵钛还原生产中还原蒸馏炉,包括炉底、炉壳、保温层、加热元件、风机、进口管道、出口管道、炉口法兰和散热装置;散热装置布置在还原反应区域上,散热装置通过进口管道与风机连接,散热装置还通过筋板与炉壳连接固定,在散热装置上设置沿炉膛中心方向开口向上呈5～15°角的孔;风机与散热装置之间的进口管道上设置有真空阀门；出口管道设于还原蒸馏炉上部,并与还原蒸馏炉炉膛相通,其上设置有真空阀门,端口设置有换热器。通过风机强制吹入空气,再经过小孔流出、收集经换热器处理,实现均匀性散热。达到把还原余热带走并集中收集再利用。可增加加料速度,缩短还原生产周期,降低能耗和降低操作工的劳动强度。(A reduction distillation furnace used in titanium sponge reduction production comprises a furnace bottom, a furnace shell, a heat preservation layer, a heating element, a fan, an inlet pipeline, an outlet pipeline, a furnace opening flange and a heat dissipation device, wherein the heat dissipation device is arranged on a reduction reaction area and is connected with the fan through the inlet pipeline, the heat dissipation device is also connected and fixed with the furnace shell through a rib plate, a hole with an upward angle of 5-15 degrees along the central direction of a hearth is arranged on the heat dissipation device, and a vacuum valve is arranged on the inlet pipeline between the fan and the heat dissipation device; the outlet pipeline is arranged at the upper part of the reduction distilling furnace and is communicated with the hearth of the reduction distilling furnace, a vacuum valve is arranged on the outlet pipeline, and a heat exchanger is arranged at the port of the outlet pipeline. Air is forcibly blown in through the fan, flows out through the small holes, is collected and is treated by the heat exchanger, and uniform heat dissipation is achieved. The purpose of taking away the reduction waste heat and collecting and recycling the reduction waste heat is achieved. The feeding speed can be increased, the reduction production period can be shortened, the energy consumption can be reduced, and the labor intensity of operators can be reduced.)

1. A reduction distillation furnace used in titanium sponge reduction production mainly comprises a furnace bottom (1), a furnace shell (2), a heat insulation layer (3), a heating element (4), a fan (5), an inlet pipeline (6), an outlet pipeline (8), a furnace opening flange (10) and a heat dissipation device (11), wherein the furnace shell (2) is respectively connected with the furnace bottom (1) and the furnace opening flange (10), the heat insulation layer (3), the heating element (4) and the heat dissipation device (11) are arranged in the furnace shell (2), the heat dissipation device (11) is arranged on a reduction reaction area, the heat dissipation device (11) is connected with the fan (5) through the inlet pipeline (6), the reduction distillation furnace is characterized in that the heat dissipation device (11) is further fixedly connected with the furnace shell (2) through a rib plate (12), a hole (13) with an opening angle of 5 ~ 15 degrees upwards is formed in the center direction of a furnace hearth is formed in the heat dissipation device (11), a vacuum valve (9) is arranged on the inlet pipeline (6) between the fan (5) and the heat dissipation device (11), the outlet pipeline (8) is arranged on the upper portion of the reduction distillation furnace and communicated with the reduction distillation furnace, and a heat exchanger (.

2. The reduction distillation furnace of claim 1, wherein: and a baffle (14) is arranged on the heat dissipation device (11).

3. The reduction distillation furnace of claim 1, wherein: the number of the rib plates (12) is more than three.

4. The reduction distillation furnace of claim 1, wherein: the number of the holes (13) is more than three.

5. The reduction distillation furnace of claim 1, wherein: the fan (5) and the two vacuum valves (9) are connected with a control system to a computer.

Technical Field

The invention relates to a production device of titanium sponge, in particular to a forced cooling device for the uniformity of a reactor in a reduction stage in the production of the titanium sponge.

Background

The industrial production of titanium sponge is mainly a Kroll process, titanium tetrachloride is continuously introduced into a closed reactor to react with liquid magnesium to generate titanium sponge, a large amount of heat is discharged at the same time, part of the heat maintains the reduction reaction of the titanium sponge, most of the residual heat must be discharged out of the reactor in time, otherwise, the temperature of the central part of the reactor is too high, the spongy titanium is sintered into a titanium block with a compact structure, capillary holes in the titanium sponge are closed, the magnesium and magnesium chloride in the titanium block are mixed, the magnesium and the magnesium chloride need to be kept at high constant temperature for a long time and are not easy to be distilled, the production quality of the titanium sponge is influenced, the power consumption is increased, and the production period. The traditional heat dissipation of the reduction furnace is realized by natural ventilation and heat dissipation through air inlets and air outlets, the air inlets and the air outlets of each reduction distillation furnace are at least arranged above 24, and during reduction, an operator opens the air inlets and the air outlets at high temperature to dissipate heat in the furnace. After the reduction is finished, the air inlet and the air outlet must be sealed and blocked at high temperature, and the titanium sponge can enter a high constant temperature stage for distillation production. In the production of the titanium sponge, an operator needs to plug the air inlet and the air outlet for 50 times, and a plurality of operators need to simultaneously operate for about 2 hours at high temperature. At present, natural ventilation heat dissipation is adopted by many manufacturers, namely, the outer wall of the reactor only depends on the natural ventilation heat dissipation of the air inlet and the air outlet, and the heat dissipation capacity is limited. The wall temperature of the reactor is high due to the fact that a large amount of heat on the wall of the reactor cannot be taken away in time, iron content of wall-climbing titanium is high, some manufacturers try to perform forced ventilation and heat dissipation on the outer wall of a reaction area at the upper part of the reactor, the structure of the titanium sponge is improved, distillation power consumption and production period are reduced, however, heat dissipation is concentrated due to the fact that ventilation and heat dissipation layout of the reduction distillation furnace is unreasonable, and the effect is not ideal; when the upper part of the reactor is subjected to forced ventilation and heat dissipation, a part of airflow enters the lower area of the reactor, and the lower area is frequently powered on and heated to meet the process temperature control requirement of discharging magnesium chloride, so that the reduction power consumption is increased.

Disclosure of Invention

The invention aims to solve the technical problem that when the reactor is subjected to forced heat dissipation, the heat at the lower part of the reactor is taken away by a heat dissipation medium; the labor intensity problem of blocking the air inlet and the air outlet at high temperature by operators; the problem of non-uniformity of forced ventilation and heat dissipation.

The technical scheme of the invention is as follows:

a reduction distillation furnace used in titanium sponge reduction production mainly comprises a furnace bottom 1, a furnace shell 2, a heat preservation layer 3, a heating element 4, a fan 5, an inlet pipeline 6, an outlet pipeline 8, a furnace opening flange 10 and a heat dissipation device 11, wherein the furnace shell 2 is respectively connected with the furnace bottom 1 and the furnace opening flange 10, the heat preservation layer 3, the heating element 4 and the heat dissipation device 11 are arranged in the furnace shell 2, the heat dissipation device 11 is arranged on a reduction reaction area, the heat dissipation device 11 is connected with the fan 5 through the inlet pipeline 6, the heat dissipation device 11 is further connected and fixed with the furnace shell 2 through a rib plate 12, a hole 13 with an upward opening angle of 5 ~ 15 degrees is arranged on the heat dissipation device 11 along the central direction of a hearth, a vacuum valve 9 is arranged on the inlet pipeline 6 between the fan 5 and the heat dissipation device 11, the outlet pipeline 8 is arranged on the upper portion of the reduction furnace and is communicated with the hearth of the reduction furnace, the vacuum valve 9 is arranged on.

The heat sink 11 is provided with a baffle 14.

The rib plates 12 are more than three.

The number of the holes 13 is three or more.

The fan 5 and the two vacuum valves 9 are connected with a control system to a computer.

Adopt above-mentioned technical scheme's beneficial effect:

1. the invention overcomes the prior forced heat radiation technology, avoids frequent power supply and temperature rise to the bottom of the reduction distillation furnace by utilizing the opening angle of the heat radiation device, also achieves the aim of forced heat radiation of reaction zone uniformity, and saves the reduction power consumption of 12000kwh in each furnace compared with the prior art.

2. The invention has large heat dissipation capability to the reactor by forced heat dissipation, cancels the air inlet and the air outlet of the reduction distillation furnace and reduces the labor intensity of operators.

3. After the reduction waste heat is collected and passes through the heat exchanger, the heat can be used for bathing of workers and the like, so that the reduction waste heat is comprehensively utilized.

4. In the reduction production, the whole reaction zone on the reactor can be uniformly ventilated and radiated, the original air inlet and outlet are eliminated, and the reduction waste heat is taken away, collected and reused. The feeding speed can be increased, the reduction production period can be shortened, the energy consumption can be reduced, and the labor intensity of operators can be reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic opening view of the heat dissipation device of the present invention.

In the figure: 1-furnace bottom, 2-furnace shell, 3-heat preservation layer, 4-heating element, 5-fan, 6-inlet pipeline, 7-heat exchanger, 8-outlet pipeline, 9-vacuum valve, 10-furnace opening flange, 11-heat dissipation device, 12-rib plate, 13-hole and 14-baffle.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1-3, a reduction distillation furnace for titanium sponge reduction production mainly comprises a furnace bottom 1, a furnace shell 2, a heat preservation layer 3, a heating element 4, a fan 5, an inlet pipeline 6, an outlet pipeline 8, a furnace opening flange 10 and a heat dissipation device 11; the furnace shell 2 is respectively connected with the furnace bottom 1 and the furnace opening flange 10, the furnace shell 2 is internally provided with a heat preservation layer 3, a heating element 4 and a heat dissipation device 11, and all air inlets and air outlets for natural ventilation and heat dissipation are eliminated; the heat dissipation device 11 is arranged on the reduction reaction area, the heat dissipation device 11 is connected with the fan 5 through the inlet pipeline 6, the heat dissipation device 11 is also connected and fixed with the furnace shell 2 through four rib plates 12, six holes 13 with 5-15 degrees upward opening are arranged on the heat dissipation device 11 along the central direction of the hearth; a vacuum valve 9 is arranged on an inlet pipeline 6 between the fan 5 and the heat dissipation device 11; the outlet pipeline 8 is arranged at the upper part of the reduction distilling furnace and is communicated with the hearth of the reduction distilling furnace, a vacuum valve 9 is arranged on the outlet pipeline, and a heat exchanger 7 is arranged at the port of the outlet pipeline.

A baffle plate 14 is arranged on the heat dissipation device 11;

the rib plates 12 are more than three.

The number of the holes 13 is three or more.

The fan 5 and the two vacuum valves 9 are connected with a control system to a computer.