High-temperature pure hydrogen protective atmosphere pusher furnace equipment and process method thereof

Abstract

The invention discloses high-temperature pure hydrogen protective atmosphere pusher furnace equipment and a process method thereof. The high-temperature pure hydrogen protective atmosphere pusher furnace equipment comprises a heating furnace filled with pure hydrogen, wherein a furnace inlet box is arranged at a hearth inlet of the heating furnace; an inlet replacement chamber is arranged at an inlet of the furnace inlet box; an inlet double gate is arranged between the inlet replacement chamber and the furnace inlet box; an inlet single gate is arranged at an inlet of the inlet replacement chamber; a furnace outlet box body is arranged at a hearth outlet of the heating furnace; an outlet replacement chamber is arranged at an outlet of the furnace outlet box body; an outlet double gate is arranged between the outlet replacement chamber and the furnace outlet box body; and an outlet single gate is arranged at an outlet of the outlet replacement chamber. Through gas replacement in the inlet replacement chamber and the outlet replacement chamber, so that materials can be ensured to be sintered in the hydrogen atmosphere, hydrogen in the heating furnace is ensured to be isolated from external air, explosion caused by leakage of the hydrogen is prevented, and the safety of the equipment is guaranteed.

Description

Technical field: [0001] The invention relates to the technical field of boat pushing furnaces, in particular to high-temperature pure hydrogen protective atmosphere boat pushing furnace equipment and a process method thereof. Background technique: [0002] In the field of nuclear industry, during the sintering process of nuclear fuel, it is usually necessary to sinter at a temperature above 1800°C in a pure hydrogen environment, while traditional sintering furnaces cannot withstand high temperatures above 1800°C, and the existing sintering furnaces are all using An inert gas such as nitrogen is used as a protective gas, such as a fully automatic nitrogen-protected boat push furnace described in patent CN201410638849.1, including a push system, a feed replacement chamber, a furnace body, a furnace tube, a cooling water tank, a discharge replacement chamber, and a feed boat and control system; the furnace tube runs through the furnace body in the horizontal direction; the push...

AI Technical Summary

Problems solved by technology

[0002] In the field of nuclear industry, during the sintering process of nuclear fuel, it is usually necessary to sinter at a temperature above 1800°C in a pure hydrogen environment, while traditional sintering furnaces cannot withstand high temperatures above 1800°C, and the existing sintering furnaces are all using An inert gas such as nitrogen is used as a protective gas, such as a fully automatic nitrogen-protected boat push furnace described in patent CN201410638849.1, including a push system, a feed replacement chamber, a furnace body, a furnace tube, a cooling water tank, a discharge replacement chamber, and a feed boat and control system; the furnace tube runs through the furnace body in the horizontal direction; the push system is set on the right side of the furnace body, and there is a feed replacement room between the push system and the furnace body, and the push system pushes the material boat into the furnace tube through the feed replacement room; The discharge replacement chamber is set on the left side of the furnace body, and there is a cooling water tank between the discharge replacement chamber and the furnace body; the push system is a hydraulic push system, and this kind of push boat furnace only replaces nitrogen, but cannot complete the replacement of pure hydrogen , and cannot be used in the nuclear industry, so it is necessary to propose a high-temperature pure hydrogen protective atmosphere pusher furnace equipment that can withstand high temperatures and replace hydrogen and air at the same time.

Images