CN-224215922-U - Waste gas circulation waste heat utilization device for magnesia carbon brick drying kiln

Abstract

The utility model relates to the technical field of waste gas waste heat utilization devices, in particular to a waste gas circulation waste heat utilization device for a magnesia carbon brick drying kiln, which comprises a drying kiln, wherein the top end of the drying kiln is communicated with a transfer pipe, one end of the transfer pipe is communicated with an air inlet frame, one end of the air inlet frame is communicated with a connecting plate and a heat exchange assembly, the air inlet frame comprises a frame body and a front filter plate fixed at the inner side of the outer part of the frame body, a rear filter plate is fixed at the middle part of the connecting plate, the heat exchange assembly comprises a heat exchange frame and a heat exchange pipe arranged in the heat exchange frame, the other end of the heat exchange frame is provided with a gas outlet, when the heat exchange assembly is used, heat in high-heat gas can be absorbed step by step until the gas is discharged, and a spiral heat exchange pipe structure is arranged in each group of heat exchange assemblies and is connected with an external pipeline, so that a medium can continuously enter the heat exchange frame to absorb heat in the high-heat gas.

Inventors

• JIN ZHAO
• MA JIALIANG
• ZHAO XIANHUA
• ZHANG YIXIAN

Assignees

• 海城利尔麦格西塔材料有限公司

Dates

Publication Date

20260508

Application Date

20250528

Claims (6)

1. 1. Waste gas circulation waste heat utilization device for magnesia carbon brick dry kiln, a serial communication port, including dry kiln (1), the top and the transfer pipe (2) of dry kiln (1) remain the intercommunication, the one end and the frame (3) that admit air of transfer pipe (2) remain the intercommunication, the one end and connecting plate (4) and heat exchange component (5) of frame (3) are admitted air and are linked together, including framework (31) and be fixed in preceding filter plate (32) of framework (31) outside inboard in frame (3) admit air, the middle part of connecting plate (4) is fixed with back filter plate (41), including heat exchange frame (51) and heat exchange tube (52) set up in heat exchange frame (51) in heat exchange component (5), gas outlet (55) have been seted up to the other end of heat exchange frame (51).
2. 2. The waste gas circulation waste heat utilization device for the magnesia carbon brick drying kiln according to claim 1, wherein a plurality of groups of heat exchange frames (51) are arranged in an equidistant array, and the heat exchange pipes (52) are in a spiral coil structure in the heat exchange frames (51).
3. 3. The waste gas circulation waste heat utilization device for the magnesia carbon brick drying kiln according to claim 1, wherein two ends of the heat exchange tube (52) are communicated with an external pipeline, and the outer side of the heat exchange tube (52) is fixed on the outer side of the heat exchange frame (51) through a locating frame (53).
4. 4. The waste gas recycling waste heat utilizing device for magnesia carbon brick drying kiln according to claim 1, wherein the mesh number of the rear filter plate (41) is larger than that of the front filter plate (32).
5. 5. The waste gas circulation waste heat utilization device for magnesia carbon brick drying kiln according to claim 4, wherein a plurality of groups of universal wheels (54) are fixed at the bottom end of the heat exchange frame (51).
6. 6. The waste gas circulation waste heat utilization device for the magnesia carbon brick drying kiln according to claim 1, wherein the frame body (31) is of a hollow trapezoid frame structure, a middle groove (42) is formed in the middle of the connecting plate (4), and the rear filter plate (41) is fixed in the middle groove (42).

Description

Waste gas circulation waste heat utilization device for magnesia carbon brick drying kiln Technical Field The utility model relates to the technical field of waste gas waste heat utilization devices, in particular to a waste gas circulation waste heat utilization device for a magnesia carbon brick drying kiln. Background In the high-temperature industrial production process of iron and steel, nonferrous metal smelting and the like, magnesia carbon bricks are widely used as an important refractory material. In the production process of the magnesia carbon brick, the magnesia carbon brick is required to be dried by a drying kiln to remove water, so that the product quality is ensured. Conventional magnesia carbon brick drying kilns, when operated, produce large amounts of high temperature exhaust gases which are typically vented directly to the atmosphere. On one hand, a large amount of heat carried in the waste gas is wasted, which definitely causes great loss of energy sources and increases the production cost of enterprises, and on the other hand, the direct discharge of high-temperature waste gas also causes heat pollution to the surrounding environment and influences the quality of ecological environment. Along with the increasingly strict global requirements on energy conservation, emission reduction and environmental protection, how to efficiently utilize waste heat of waste gas generated by a magnesia carbon brick drying kiln becomes a key problem to be solved in industry. The development of the waste gas circulation waste heat utilization device for the magnesia carbon brick drying kiln has important practical significance for improving the energy utilization efficiency, reducing the production cost and reducing the environmental pollution. Disclosure of utility model Technical problem to be solved Aiming at the defects existing in the prior art, the utility model provides the waste gas circulation waste heat utilization device for the magnesia carbon brick drying kiln, which can effectively solve the problems in the prior art. Technical proposal In order to achieve the above purpose, the utility model is realized by the following technical scheme: The utility model provides an exhaust gas circulation waste heat utilization device for a magnesia carbon brick drying kiln, which comprises a drying kiln, wherein the top end of the drying kiln is communicated with a transfer pipe, one end of the transfer pipe is communicated with an air inlet frame, one end of the air inlet frame is communicated with a connecting plate and a heat exchange assembly, the air inlet frame comprises a frame body and a front filter plate fixed on the inner side of the outer part of the frame body, a rear filter plate is fixed in the middle of the connecting plate, the heat exchange assembly comprises a heat exchange frame and a heat exchange pipe arranged in the heat exchange frame, and the other end of the heat exchange frame is provided with a gas outlet. Further, the heat exchange frames are equidistantly arranged in an array manner, and the heat exchange pipes are in a spiral coil structure in the heat exchange frames. Further, two ends of the heat exchange tube are communicated with an external pipeline, and the outer side of the heat exchange tube is fixed on the outer side of the heat exchange frame through a locating frame. Further, the mesh number of the rear filter plate is larger than that of the front filter plate. Further, a plurality of groups of universal wheels are fixed at the bottom end of the heat exchange frame. Further, the frame body is of a hollow trapezoid frame structure, a middle groove is formed in the middle of the connecting plate, and the rear filter plate is fixed in the middle groove. Advantageous effects Compared with the known public technology, the technical scheme provided by the utility model has the following beneficial effects: according to the utility model, through the arrangement of the transfer tube-air inlet frame-connecting plate-heat exchange assembly structure, high heat waste heat in the drying kiln can be collected to one side through the transfer tube, the heat is collected through the frame body structure in a decelerating way, and the gas in the transfer tube-air inlet frame-connecting plate-heat exchange assembly structure sequentially passes through the front filter plate and the rear filter plate structure to be filtered twice, so that intercepted particles in the gas can be removed, the gas enters a plurality of groups of heat exchange assemblies through the connecting plate, and the heat in the high heat gas can be absorbed step by step until the gas is discharged when the heat exchange assemblies are used, and a spiral heat exchange tube structure is arranged in each group of heat exchange assemblies and is connected with an external pipeline, so that a medium can continuously enter the heat exchange frame to absorb the heat in the high heat gas. Drawings In order to mo