TW201348451A - Extracting device of high-temperature reaction furnace - Google Patents

Abstract

The present invention relates to an extracting device of a high-temperature reaction furnace, including: a main furnace heating apparatus installed at the outer edge of the furnace body; a flow-guiding channel installed at the bottom part of the furnace body; a pouring gate installed at the outer end of the flow-guiding channel, wherein the flow-guiding channel is installed in a flow-guiding seat connected to the furnace body; and a thermal switch system installed at the outer part of the flow-guiding seat for controlling the temperature of the flow-guiding seat. The temperature change controlled by the thermal switch system can enable the reaction substance in the flow-guiding channel to solidify or melt so as to realize the close and the conduction of the flow-guiding channel, thereby capable of realizing a normal reaction operation of the reaction furnace and an extracting operation of the reaction substance. In addition, the oxidation of the reaction substance is controlled by allowing the reaction substance to contact external environment only between the pouring gate to the mold or the container. Owing to guiding flow under liquid surface, the floated slag-type reaction substance can completely be prevented from slag inclusion, not forming more blowholes and bubbles by including new gas. The rapid open or close of the flow-guiding channel can be achieved by temperature control, thereby the measurement of pouring can be well controlled, and the purpose of precise pouring can be achieved.

Description

High temperature reactor reclaiming device

The invention relates to the field of auxiliary equipment for a smelting reaction furnace, in particular to a high temperature reaction furnace reclaiming device.

In the process of performing the heating operation using the reaction furnace, the reaction material in the reaction furnace during or after the reaction is often required to be partially or completely taken out.

The way to take out is mostly the following:

1. The bottom or side wall of the reaction furnace is connected to the guide flow path, and a switch valve is arranged in the flow guide to control the outflow time and the outflow amount.

2. Let the reactor tilt and pour out the reaction mass.

3. Using a pump, let the feed tube of the pump be inserted into the reaction material for extraction.

The above several methods can be used in the middle and low temperature fields, but in the conventional process in the high temperature field, the second method is mostly used, but the method in which the reactor tilts the reactants has the following disadvantages:

1. The length of the reaction stream column is easy to be wrapped in gas and slag, and it is easy to generate pores and slag; 2. The reactants are in contact with air for a long time, which is unfavorable for the operation of the reaction substance that needs to control high temperature oxidation;

3. The reaction material outflow rate is not easy to control, which is not conducive to accurate metering;

4. The auxiliary dumping equipment has high requirements and low safety factor.

Therefore, the removal of the reaction materials of the current high-temperature reactor has large defects, especially for processes requiring strict control of the amount of reactants taken out, oxidation prevention, slag inclusion, pores, and the like. This case will be generated. Therefore, the object of the present invention is to provide a high-temperature reactor reclaiming device which can realize the flow path at the bottom or side wall of the high-temperature reaction furnace to take out the reaction material, thereby solving the problem that the high-temperature reaction furnace in the prior art is caused by dumping the reactants. Many problems.

To achieve the above object, the solution of the present invention is:

The utility model relates to a high-temperature reaction furnace reclaiming device, wherein a main furnace heating device is arranged on the outer edge of a furnace, and a lower flow guiding channel is arranged at a lower portion of the furnace body, and a pouring nozzle is arranged at an outer end of the guiding channel; the key is: the guiding The flow passage is disposed in a flow guiding seat connected to the furnace body, and a thermal switch system for controlling the temperature of the flow guiding seat is disposed outside the flow guiding seat.

The thermal switch system includes a thermal switch heating device and a thermal switch cooling device.

The thermal switch heating device is a thermal switch induction coil.

The main furnace heating device is a main furnace induction coil.

An insulation layer is disposed between the main furnace induction coil and the furnace body.

The thermal switch system includes a closed cylinder body having a hot oil inlet and a hot oil outlet of the thermal switch heating device, and a cooling substance inlet and a cooling material outlet are further disposed on the cylinder block.

The main furnace heating device is a closed main furnace heating cylinder, and is provided with a main furnace hot oil inlet and a main furnace hot oil outlet.

The thermal switch heating device is a thermal switch resistance heater.

The thermal switch resistance heater is externally provided with a thermal switch thermal insulation layer.

The main furnace heating device is a main furnace electric resistance heater.

The main furnace resistance heater is provided with a main furnace thermal insulation layer outside.

The cooling material of the thermal switch cooling device is a gas or a liquid.

The furnace body is a reaction kettle or a smelting furnace.

The flow guiding channels are arranged in one or more parallels and respectively correspond to a thermal switching system.

After adopting the above scheme, the present invention provides a flow guiding seat having a flow guiding channel in a lower portion of the furnace body, and the reaction material in the guiding channel is solidified or melted by a change in temperature, thereby realizing closure and conduction of the guiding channel, thereby realizing the reaction. The normal reaction work of the furnace and the removal of the reactants, and the closing and conducting of the flow channel are temperature controlled by a thermal switching system provided outside the flow guiding seat.

In this way, the reaction material contacts the external environment only between the nozzle to the distance of the mold or the container, and it is extremely advantageous for a process that needs to control the oxidation reaction of the reaction substance with oxygen in the air, and can even isolate the air by manufacturing a small protective atmosphere. Because it is a liquid subsurface flow, for slag-type reactants, the slag inclusion phenomenon can be almost completely avoided, and no new gas is trapped to form more pore bubbles; since the flow guide can be quickly controlled by temperature control The switch, therefore the metering of the casting can be well controlled for the purpose of precise casting.

As shown in the first figure, the present invention discloses a high temperature reactor reclaiming device, which is provided with a main furnace heating device (20) on the outer edge of a furnace body (10), and a lower portion of the furnace body (10) is provided with a a flow guiding channel (40), wherein the furnace body (10) is a reaction kettle or a melting furnace, and a nozzle (60) is disposed at an outer end of the guiding channel (40); the guiding channel (40) is disposed at In a flow guiding seat (101) to which the furnace body (10) is connected, a thermal switching system for temperature control of the flow guiding seat (101) is provided outside the flow guiding seat (101).

The thermal switch system includes a thermal switch heating device (30) and a thermal switch cooling device (50); the thermal switch heating device (30) is for induction heating or heat conduction heating; and the flow guiding channel (40) is provided with one or One or more parallels may respectively correspond to the thermal switch system; and the thermal switch cooling device (50) cools and cools the guide channel (40) by piping a cooling substance, and the cooling substance may be a gas or a liquid.

During operation, the main furnace heating device (20) of the upper furnace body (10) heats and melts the reaction material, at which time the heat switch heating device (30) is in an inoperative state, and the reactant melt flows into the guide channel under the action of gravity. (40), the melt temperature is lowered during the flow to condense into a solid, and the flow guiding channel (40) is blocked to achieve the effect of closing the thermal switch. When it is necessary to discharge the reactant melt, the thermal switch heating device (30) is turned on, heated, the reactant in the flow guiding channel (40) is melted, flows out from the pouring nozzle (60) under the action of gravity, and the thermal switching system is turned on. State; at the end of the pouring, the thermal switch heating device (30) is turned off, the cooling material is passed through the thermal switch cooling device (50), the heat switch is cooled, and the melt in the flow guide (40) is solidified to be closed. status. So loop back.

Example 1:

As shown in the second figure, the reaction furnace in the first embodiment is a melting crucible (11), and an outer thermal insulation layer (71) is provided on the outside thereof; and a main furnace induction is provided outside the thermal insulation layer (71). The coil (21); a heat-switching induction coil (31) and a cooling air pipe (51) are disposed outside the flow guiding seat (111); thus, induction heating of the reaction furnace and the flow guiding channel (41) is realized.

During operation, the upper melting crucible (11) is heated and melted by the main furnace induction coil (21), and the thermal switch induction coil (31) is in an inoperative state, and the reactant melt flows into the diversion channel under the action of gravity. (41), the melt temperature is lowered during the flow to condense into a solid, and the flow guiding channel (41) is blocked to achieve the effect of closing the thermal switch. When the reactant melt needs to be discharged, the thermal switch induction coil (31) is turned on, induction heating is performed, the reactant in the flow guiding channel (41) is melted, flows out from the pouring nozzle (61) under the action of gravity, and the thermal switching system is turned on. State; at the end of the pouring, the thermal switch induction coil (31) is closed, the cooling material is passed through the cooling pipe (51), the heat switch is cooled, and the melt in the flow guiding channel (41) is solidified to be in a closed state. So loop back.

Example 2:

As shown in the third figure, the reaction furnace in the second embodiment is a melting crucible (12), and a main furnace heating cylinder (22) is provided outside thereof, and the main furnace heating cylinder (22) is closed. a cylinder body having a main furnace hot oil inlet (221) and a main furnace hot oil outlet (222); and a heat switch heating cylinder (32) disposed outside the flow guiding seat (121), the heating cylinder (32) The utility model relates to a closed cylinder body, which is provided with a hot oil inlet (321) and a hot oil outlet (322) of the thermal switch heating device, and the cylinder body is further provided with a cooling material inlet (521) and a cooling material outlet (522). ). The heat conduction heating of the furnace body (10) and the flow guiding channel (42) is achieved in this way.

During operation, the upper melting crucible (12) heats and melts the reaction substance by injecting hot oil into the main furnace heating cylinder (32), and the reactant melt flows into the diversion channel (42) under the action of gravity, under the action of the cooling liquid. In the flow, the melt temperature is lowered to condense into a solid, and the flow guiding channel (42) is blocked to achieve the effect of turning off the heat switch. When it is necessary to discharge the reactant melt, the cooling liquid is drained, the hot-switching heating cylinder (32) is injected with hot oil, heated, and the reactant in the flow guiding channel (42) is melted, and the pouring nozzle (62) is under gravity. When the flow is out, the thermal switch system is in the on state; after the pouring is completed, the hot oil is drained, the coolant is injected, the heat switch is cooled, and the melt in the flow guide (42) is solidified to be closed. So loop back.

Example 3:

As shown in the fourth figure, the reaction furnace in the third embodiment is a melting crucible (13), and a main furnace resistance heater (23) is provided outside the main furnace; a main unit is provided outside the main furnace resistance heater (23). Furnace thermal insulation layer (73); a thermal switch resistance heater (33) is disposed outside the flow guiding seat (131), and a thermal switch thermal insulation layer (83) is disposed outside the thermal switch resistance heater (33).

During operation, the upper melting crucible (13) is heated and melted by the main furnace resistance heater (23), at which time the thermal switch resistance heater (33) is in an inoperative state, and the cooling tube (53) is injected with a cooling substance, the reactant The melt flows into the flow guiding channel (43) under the action of gravity, and the melt temperature is lowered to condense into a solid during the flow, and the flow guiding channel (43) is blocked to achieve the effect of closing the thermal switch. When it is necessary to discharge the reactant melt, the cooling substance is evacuated, the thermal switch resistance heater (23) is turned on, heating is performed, the reactant in the flow guiding channel (43) is melted, and flows out from the pouring nozzle (63) under the action of gravity. The thermal switching system is in an on state; at the end of the pouring, the thermal switch resistance heater (23) is turned off, the cooling material is introduced through the cooling pipe (53), the thermal switch is cooled, and the melt in the flow guiding channel (43) is solidified. Leave it off. So loop back.

In summary, it can be seen that the present invention provides a flow guiding seat having a flow guiding channel in a lower portion of the furnace body, and the reaction material in the guiding channel is solidified or melted by a change in temperature, thereby realizing closure and conduction of the guiding channel, thereby realizing The normal reaction work of the reaction furnace and the removal of the reactants are performed, and the closing and conducting of the flow guiding channel are temperature-controlled by a thermal switching system provided outside the flow guiding seat. The reaction material is only in contact with the external environment between the distance from the nozzle to the mold or the container. It is extremely advantageous for the process of controlling the oxidation reaction of the reaction substance with oxygen in the air, and the air can be isolated even by manufacturing a small protective atmosphere; Because it is a liquid subsurface flow, for slag-type reactants, the slag inclusion phenomenon can be almost completely avoided, and no new gas is trapped to form more pore bubbles; since the flow guide can be quickly switched by temperature control Therefore, the metering of the casting can be well controlled to achieve the purpose of precise casting.

(10). . . Furnace body

(101). . . Diversion seat

(20). . . Main furnace heating equipment

(30). . . Thermal switch heating equipment

(40). . . Guide channel

(50). . . Thermal switch cooling equipment

(60). . . Pouring mouth

(11). . . Smelting

(111). . . Diversion seat

(twenty one). . . Main furnace induction coil

(31). . . Thermal switch induction coil

(41). . . Guide channel

(51). . . Cooling air pipe

(61). . . Pouring mouth

(71). . . Thermal insulation layer

(12). . . Smelting

(121). . . Diversion seat

(twenty two). . . Main furnace heating cylinder

(221). . . Main furnace hot oil inlet

(222). . . Main furnace hot oil outlet

(32). . . Heating cylinder

(321). . . Hot oil inlet

(322). . . Hot oil outlet

(42). . . Guide channel

(521). . . Cooling material inlet

(522). . . Cooling material outlet

(13). . . Smelting

(131). . . Diversion seat

(twenty three). . . Main furnace resistance heater

(33). . . Thermal switch resistance heater

(43). . . Guide channel

(53). . . Cooling tube

(63). . . Pouring mouth

(73). . . Main furnace insulation layer

(83). . . Thermal switch insulation

The first figure is a schematic diagram of the thermal switch system of the present invention.

The second figure is a schematic diagram of the system according to Embodiment 1 of the present invention (induction coil heating).

The third figure is a schematic diagram of a system according to Embodiment 2 of the present invention (oil hot air cooling switch system).

The fourth figure is a schematic diagram of the system (resistance heating) of Embodiment 3 of the present invention.

(10). . . Furnace body

(101). . . Diversion seat

(20). . . Main furnace heating equipment

(30). . . Thermal switch heating equipment

(40). . . Guide channel

(50). . . Thermal switch cooling equipment

(60). . . Pouring mouth

Claims (14)

A high-temperature reactor reclaiming device, wherein a main furnace heating device is disposed at an outer edge of a furnace, and a lower portion of the furnace body is provided with a guiding channel, and an outer end of the guiding channel is provided with a pouring nozzle; The flow guiding channel is disposed in a flow guiding seat connected to the furnace body, and a thermal switch system for controlling the temperature of the flow guiding seat is disposed outside the flow guiding seat. The high temperature reactor reclaiming device according to claim 1, wherein the thermal switching system comprises a thermal switch heating device and a thermal switch cooling device. The high temperature reactor reclaiming device according to claim 2, wherein the thermal switch heating device is a thermal switch induction coil. The high temperature reactor reclaiming device according to claim 1, wherein the main furnace heating device is a main furnace induction coil. The high temperature reactor reclaiming device according to claim 4, wherein the main furnace induction coil and the furnace body are provided with an insulation layer. The high temperature reactor reclaiming device according to claim 2, wherein the thermal switch system comprises a closed cylinder having a hot oil inlet and a hot oil outlet of the thermal switch heating device. The cylinder body is further provided with a cooling material inlet and a cooling material outlet. The high temperature reactor reclaiming device according to claim 1 or 6, wherein the main furnace heating device is a closed main furnace heating cylinder, and a main furnace hot oil inlet and a main unit are arranged thereon. Furnace hot oil outlet. The high temperature reactor reclaiming device according to claim 2, wherein the thermal switch heating device is a thermal switch resistance heater. The high temperature reactor reclaiming device according to claim 8, wherein the thermal switch resistance heater is provided with a thermal switch thermal insulation layer. The high temperature reactor reclaiming device according to claim 1, wherein the main furnace heating device is a main furnace electric resistance heater. The high temperature reactor reclaiming device according to claim 10, wherein the main furnace electric resistance heater is provided with a main furnace thermal insulation layer. The high temperature reactor reclaiming device according to claim 2, wherein the cooling material of the thermal switch cooling device is a gas or a liquid. The high temperature reactor reclaiming device according to claim 1, wherein the furnace body is a reaction kettle or a smelting furnace. The high-temperature reactor reclaiming device according to claim 1, wherein the guiding channels are arranged in one or more parallels and respectively correspond to a thermal switching system.