CN-224215853-U - Anti-oxidation mesh belt furnace preheating zone structure

Abstract

The utility model discloses an anti-oxidation mesh belt furnace preheating zone structure, which comprises a furnace body, a support and a mesh belt mechanism, wherein the support and the mesh belt mechanism are arranged at the inlet side of the furnace body, the mesh belt mechanism comprises a mesh belt extending from the support to the furnace body and penetrating through the furnace body and a mesh belt transmission assembly for driving the mesh belt to move, a support frame is arranged between the support and the furnace body, a lower supporting plate is arranged on the upper end face of the support frame so as to support the mesh belt, side baffles are respectively arranged at two sides of the support frame, the side baffles extend to the inlet position of the furnace body, and a flame curtain assembly is arranged at the upper end of a furnace chamber inlet of the furnace body. The structure of the preheating zone of the anti-oxidation mesh belt furnace can reduce the air entering the preheating zone and avoid the problem of oxidization and skinning of a workpiece before the workpiece enters the protective atmosphere.

Inventors

• YANG WEIMIN
• LI ZHILONG

Assignees

• 苏州轴承厂股份有限公司

Dates

Publication Date

20260508

Application Date

20250530

Claims (7)

1. 1. An anti-oxidation guipure stove preheating zone structure, the guipure stove includes the furnace body, sets up support and guipure mechanism of furnace body entry side, guipure mechanism includes by the support extends to the furnace body runs through guipure and the drive of furnace body the guipure subassembly that the guipure marred marched, its characterized in that: a supporting frame is arranged between the bracket and the furnace body, and a lower supporting plate is arranged on the upper end surface of the supporting frame so as to support the mesh belt; The supporting frames are respectively provided with side baffles at two sides of the mesh belt, and the side baffles extend to the inlet position of the furnace body; The upper end of the furnace chamber inlet of the furnace body is provided with a flame curtain component.
2. 2. The oxidation-preventing mesh belt furnace preheating zone structure according to claim 1, wherein: The lower end face of the inlet of the furnace body is provided with silicon carbide bricks which are used for supporting the mesh belt and are in sealing fit with the mesh belt.
3. 3. The oxidation-preventing mesh belt furnace preheating zone structure according to claim 1, wherein: An upper baffle plate is fixed at the rear of the flame curtain component at the upper end of the furnace chamber.
4. 4. The oxidation-preventing mesh belt furnace preheating zone structure according to claim 3, wherein: the lower supporting plate, the upper baffle plate and the side baffle plates are steel plates.
5. 5. The oxidation-preventing mesh belt furnace preheating zone structure according to claim 1, wherein: The flame curtain assembly comprises two flame curtains which are arranged at intervals along the advancing direction of the mesh belt, the upper ends of the flame curtains are fixed on the furnace body, and the lower ends of the flame curtains extend to the upper part of the mesh belt.
6. 6. The oxidation-preventing mesh belt furnace preheating zone structure according to claim 1, wherein: The side baffle comprises a bottom plate and a side plate fixedly connected with the bottom plate, the bottom plate is fixed on the supporting frame, and the side plate extends to the upper side of the supporting frame from the bottom plate.
7. 7. The oxidation-preventing mesh belt furnace preheating zone structure according to claim 6, wherein: the bottom plate is fixed on the support frame through screws.

Description

Anti-oxidation mesh belt furnace preheating zone structure Technical Field The utility model relates to the technical field of heat treatment equipment, in particular to an anti-oxidation preheating zone structure of a mesh belt furnace. Background The mesh belt furnace is a mesh belt heat treatment furnace, which is equipment for realizing heat treatment processes such as carburizing/carbonitriding or austenitizing of metal products in a protective atmosphere, and the batch treatment of products is carried out by utilizing the mesh belt heat treatment furnace in various industries at present. Typical belt heat treatment furnaces typically include a furnace body, a belt for transporting the product, a heating system, a temperature/atmosphere control system, etc., as continuous heat treatment equipment, the belt furnace typically places the product on the belt in a loading zone, after which the product is transported through the belt into the furnace for heat carburization and soak, and falls into an oil bath at the belt outlet, completing quenching. The waste gas in the preheating zone of the mesh belt furnace burns in the zone, plays a role in isolating air, and the narrowing of the furnace mouth zone ensures positive pressure in the furnace and the preheating of parts in the zone, so that the preparation is made for the next carburization/carbonitriding step. The quality of the product is directly affected by the structural design of the preheating zone, and the combustible gas in the furnace can burn below the mesh belt and at the side edge, so that the temperature at the mesh belt at the furnace mouth is too high, and the problem of oxidization and skinning of the workpiece is caused. Disclosure of utility model The utility model aims to provide an anti-oxidation mesh belt furnace preheating zone structure, which can avoid the problem of workpiece oxidization and peeling caused by overhigh temperature of the mesh belt furnace preheating zone. Based on the problems, the technical scheme provided by the utility model is as follows: An anti-oxidation mesh belt furnace preheating zone structure, the mesh belt furnace comprises a furnace body, a bracket arranged at the inlet side of the furnace body and a mesh belt mechanism, the mesh belt mechanism comprises a mesh belt extending from the bracket to the furnace body and penetrating the furnace body and a mesh belt transmission assembly driving the mesh belt to move, A supporting frame is arranged between the bracket and the furnace body, and a lower supporting plate is arranged on the upper end surface of the supporting frame so as to support the mesh belt; The supporting frames are respectively provided with side baffles at two sides of the mesh belt, and the side baffles extend to the inlet position of the furnace body; The upper end of the furnace chamber inlet of the furnace body is provided with a flame curtain component. In some embodiments, the lower end face of the inlet of the furnace body is provided with silicon carbide bricks, and the silicon carbide bricks are used for supporting the mesh belt and are in sealing fit with the mesh belt. In some embodiments, an upper baffle is fixed to the upper end of the furnace chamber behind the flame curtain assembly. In some embodiments, the bottom plate, the top plate, and the side plates are steel plates. In some embodiments, the flame curtain assembly comprises two flame curtains arranged at intervals along the travelling direction of the mesh belt, wherein the upper ends of the flame curtains are fixed on the furnace body, and the lower ends of the flame curtains extend to the upper part of the mesh belt. In some embodiments, the side baffle comprises a bottom plate and a side plate fixedly connected with the bottom plate, the bottom plate is fixed on the support frame, and the side plate extends from the bottom plate to the upper side of the support frame. In some embodiments, the base plate is secured to the support bracket via screws. Compared with the prior art, the utility model has the advantages that: (1) The lower supporting plate is arranged below the mesh belt at the inlet position of the furnace body, the side baffles are arranged at the two sides of the mesh belt, and the flame curtain component is arranged at the upper end of the inlet of the furnace chamber, so that the sealing effect can be achieved, the high temperature generated by the combustion of air entering the preheating zone from the lower part, the two sides and the upper part of the mesh belt is reduced, and the problems of oxidization and skinning of a workpiece before the protective atmosphere is obtained are avoided; (2) The silicon carbide bricks are arranged on the lower end face of the inlet of the furnace body, have small friction coefficient and high hardness, can prevent the mesh belt from being deformed excessively under the stress, realize the sealing of the mesh belt and the furnace body, and further avoid the exces