CN-224215811-U - Reaction furnace and recovery system

Abstract

The application discloses a reaction furnace and a recovery system, and relates to the technical field of chemical equipment. The reaction furnace comprises a furnace body, a crucible and an isolation protection layer, wherein the crucible and the isolation protection layer are arranged in the furnace body, the isolation protection layer is arranged in the crucible, a reaction chamber is formed in the isolation protection layer and used for placing reactants, the reaction furnace heats the reactants in the reaction chamber through the crucible, and the isolation protection layer is used for separating the reactants in the reaction chamber from the crucible. The scheme can be at least used for improving the process quality of the reaction furnace.

Inventors

• LIU XIAOHUI
• WEI KE
• YAO YINGXIONG

Assignees

• 四川锦恒丰菱新材料科技有限责任公司

Dates

Publication Date

20260508

Application Date

20250427

Claims (10)

1. 1. A reaction furnace, characterized in that the reaction furnace comprises a furnace body, a crucible and an isolation protection layer, wherein: The crucible and the isolation protection layer are both arranged in the furnace body, the isolation protection layer is arranged in the crucible, a reaction chamber is formed in the isolation protection layer, and the reaction chamber is used for placing reactants; The reaction furnace heats the reactant in the reaction chamber through the crucible, and the insulating protective layer is used for spacing the reactant in the reaction chamber from the crucible.
2. 2. The reactor according to claim 1, wherein the insulating protective layer is made of at least one of corundum, ceramic material and quartz glass; And/or the crucible is a graphite crucible or a silicon carbide crucible; And/or, the reaction furnace further comprises a heat transfer transition layer, and the heat transfer transition layer is arranged between the crucible and the isolation protection layer.
3. 3. The reactor according to claim 2, wherein in the case where the insulating protective layer is a corundum layer and the crucible is a graphite crucible, the heat transfer transition layer is a mixed layer of graphite and corundum.
4. 4. A furnace according to claim 3, wherein in the heat transfer transition layer, the composition ratio of corundum gradually decreases and the composition ratio of graphite gradually increases from the insulating protective layer to the crucible.
5. 5. The reactor according to any one of claims 1 to 4, wherein the reactor is an induction reactor, the reactor further comprising an induction coil provided at the outer periphery of the crucible for induction heating of the crucible and/or reactants within the reaction chamber; And/or the reaction furnace further comprises a first gas supply channel which is communicated with the reaction chamber and is used for supplying gas corresponding to the upper side of the reaction chamber; And/or the reaction furnace further comprises a second gas supply channel which is communicated with the reaction chamber and is used for supplying gas to the bottom side of the reaction chamber; And/or the reaction furnace further comprises a third gas supply channel which is communicated with the reaction chamber and is used for supplying gas to the side surface corresponding to the reaction chamber; And/or the furnace body comprises a main body and a cover body, wherein the cover body is movably arranged on the main body so that the furnace body is switched between a first state and a second state, the cover body is opened relative to the main body under the condition that the furnace body is in the first state, the reaction chamber is exposed, and the cover body is closed relative to the main body under the condition that the furnace body is in the second state, so that the reaction chamber is blocked.
6. 6. The reactor according to claim 5, wherein an air gap is provided between the crucible and the induction coil, and the third gas supply passage supplies gas through the air gap; And/or the reaction furnace comprises a first air supply pipeline, wherein the first air supply pipeline is provided with a first air supply channel, and the first air supply pipeline is movably arranged relative to the furnace body so as to adjust the height position of the outlet end of the first air supply channel in the reaction chamber.
7. 7. The reactor according to claim 6, wherein an outlet of the third gas supply passage is deviated from an outer surface of the crucible to supply gas; and/or the air gap is an annular gap between the crucible and the induction coil, and the third air supply channel comprises a plurality of air supply holes which are uniformly distributed in the annular gap along the circumferential direction.
8. 8. The reactor according to claim 6, wherein the third gas supply passage is an inert gas passage.
9. 9. The reactor according to any one of claims 1 to 4, further comprising an exhaust passage, wherein: The reaction furnace further comprises an exhaust channel, wherein the inlet end of the exhaust channel, which is close to one side of the reaction chamber, is arranged in an open mode.
10. 10. A recycling system comprising the reaction furnace according to any one of claims 1 to 9.

Description

Reaction furnace and recovery system Technical Field The application relates to the technical field of chemical equipment, in particular to a reaction furnace and a recovery system. Background In the chemical industry, the purposes of smelting, casting, recycling and the like are often realized by heating minerals, alloys, slag and the like by using a reaction furnace. Common reaction furnaces include medium frequency furnaces, high frequency furnaces, and the like. In the related art, a reaction furnace includes a crucible and a melting chamber constructed in the crucible in which a reactant is treated in order to obtain superior process quality. However, in practice, it is often found that the reactants sinter with the crucible, which causes the crucible to be damaged, and the desired reaction product is not obtained, which generally reflects the poor process quality of the relevant reaction furnace. Disclosure of utility model The application provides a reaction furnace and a recovery system, which can be at least used for improving the process quality of the reaction furnace. In a first aspect, embodiments of the present application provide a reaction furnace. The reaction furnace comprises a furnace body, a crucible and an isolation protection layer, wherein the crucible and the isolation protection layer are arranged in the furnace body, the isolation protection layer is arranged in the crucible, a reaction chamber is formed in the isolation protection layer and used for placing reactants, the reaction furnace heats the reactants in the reaction chamber through the crucible, and the isolation protection layer is used for separating the reactants in the reaction chamber from the crucible. In some embodiments, the insulating protective layer is made of at least one of corundum, ceramic material, and quartz glass. In some embodiments, the crucible is a graphite crucible or a silicon carbide crucible. In some embodiments, the reaction furnace further comprises a heat transfer transition layer disposed between the crucible and the insulating protective layer. In some embodiments, where the insulating protective layer is a corundum layer and the crucible is a graphite crucible, the heat transfer transition layer is a mixed layer of graphite and corundum. In some embodiments, in the heat transfer transition layer, the composition of the corundum gradually decreases and the composition of the graphite gradually increases from the insulating protective layer to the crucible. In some embodiments, the reaction furnace is an induction type reaction furnace, the reaction furnace further comprising an induction coil disposed about the periphery of the crucible, the induction coil configured to inductively heat reactants within the crucible and/or the reaction chamber. In some embodiments, the reaction furnace further includes a first gas supply passage communicating with the reaction chamber and for supplying gas to an upper side of the corresponding reaction chamber. In some embodiments, the reactor further comprises a second gas feed channel in communication with the reaction chamber and for feeding gas to the bottom side of the corresponding reaction chamber. In some embodiments, the reaction furnace further comprises a third gas feed channel in communication with the reaction chamber and for feeding gas to a side of the corresponding reaction chamber. In some embodiments, the furnace body comprises a main body and a cover body, the cover body is movably arranged on the main body so that the furnace body is switched between a first state and a second state, the cover body is opened relative to the main body under the condition that the furnace body is in the first state, the reaction chamber is exposed, and the cover body is closed relative to the main body under the condition that the furnace body is in the second state, so as to seal the reaction chamber. In some embodiments, an air gap is provided between the crucible and the induction coil, and the third gas delivery passage delivers gas through the air gap. In some embodiments, the reactor includes a first plenum having a first plenum channel movably disposed relative to the furnace body to adjust a height position of an outlet end of the first plenum channel at the reaction chamber. In some embodiments, the outlet of the third plenum feeds gas off the outer surface of the crucible. In some embodiments, the air gap is an annular gap between the crucible and the induction coil, and the third plenum comprises a plurality of plenums that are uniformly circumferentially distributed within the annular gap. In some embodiments, the third plenum is an inert gas plenum. In some embodiments, the reaction furnace further comprises an exhaust channel, wherein a filter screen is arranged in the exhaust channel, and/or an inlet end of one side of the exhaust channel, which is close to the reaction chamber, is arranged in an open mode. In a second aspect, embodiments of