Air-cooling fire barrier device of annular furnace
By setting up an air-cooled firewall composed of air-cooled pipes and lightweight mullite bricks in the ring furnace, the problems of scale blockage and energy waste of water-cooled firewall are solved, efficient cooling and energy consumption are achieved, and equipment use is extended Lifespan and economic benefits.
Patent Information
- Application Number
- CN202323637438.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-29
AI Technical Summary
Traditional water-cooled firewalls are prone to scale blockage in high temperatures, resulting in failure of cooling effect, shortening of service life, and large consumption of water resources, which poses a problem of energy waste.
Annular furnace air-cooled fire wall composed of air-cooled pipes is fixed by setting up a U-shaped curved air-cooled pipe in the furnace, combined with stainless steel anchor hooks and heavy castable materials, and the outside is built with lightweight mullite bricks. The blower sends cold air to cool it, and the preheated hot air is used to aid combustion to avoid waste of energy.
It effectively blocks the circulation of flue gas, reduces energy consumption, extends service life, saves water, is easy to install and maintain, has the advantages of economical and reasonable, energy-saving and consumption-saving, and improves production efficiency.
Smart Images
Figure CN222257616U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of industrial thermal equipment, in particular to an annular furnace air-cooled fire retaining wall device. Background Art
[0002] Traditional annular furnace fire walls are generally water-cooled fire walls, which have very high requirements for water quality and the operating cost of using soft water is too high. When ordinary industrial water is used for cooling, the water pipes are prone to scaling, and the water cooling effect cannot be achieved in the later stage. Especially in northern my country, water resources are relatively scarce and precious, and the water hardness is generally high. When the water-cooled fire wall is running at high temperature, scale will appear. As the scale slowly accumulates, it will block the pipes and prevent the cooling water from passing through. The water-cooled pipes that have not been cooled by cooling water will soon break. Affected by the water quality, scaling will appear in the water pipes, which will slowly accumulate and block the water pipes, causing the cooling water to be unable to pass through. The water-cooled fire wall will soon break, affecting the service life of the fire wall. At the same time, due to the large specific heat of cooling water, the heat absorbed by heat is also very large, resulting in energy waste. Summary of the invention
[0003] The utility model aims to provide the market with a ring-shaped furnace air-cooled fire retaining wall device which has reasonable structure, simple masonry, energy saving and consumption reduction, high quality and high efficiency.
[0004] The technical solution of the utility model: it includes an annular furnace body and a fire retaining wall, etc., an air cooling pipe is arranged in the fire retaining wall, an air inlet of the air cooling pipe passes through the furnace top and is connected to an air supply pipe connected to a blower fixedly installed on the steel structure at the top of the annular furnace body, an air outlet passes through the furnace top and is connected to a hot exhaust pipe connected to a hot air combustion-supporting pipeline, the top of the air cooling pipe is welded and fixed by a rib plate and a pad, and the whole is fixed on a channel steel fixing frame, and the channel steel fixing frame is fixed to the steel structure of the annular furnace top body by bolts.
[0005] Furthermore, the air cooling pipe is in a "U"-shaped bend, stainless steel anchor hooks are welded on the outside of part of the air cooling pipe in the furnace, heavy castables are poured along the bend of the air cooling pipe, and the rest is built with lightweight mullite bricks to form an air cooling fire retaining wall.
[0006] The beneficial effects of the utility model are as follows: an air-cooled fire baffle is set in the furnace of the annular furnace, firstly, it can block the flow of smoke and improve the heating effect of smoke on the product; secondly, an air-cooled fire baffle is set at the inlet of the annular furnace to prevent the outside air from entering the furnace and reduce energy consumption; thirdly, the hot air formed by the cold air passing through the cold air pipe is sent to the combustion-supporting air pipe for the burner combustion-supporting use, thus avoiding energy waste; fourthly, the air-cooled fire baffle adopts an integral processing and manufacturing mode, which is very convenient for installation, disassembly and maintenance, and the manufacturing cost of the air-cooled fire baffle is relatively economical and reasonable. It has the advantages of water saving, reasonable structure, simple masonry, energy saving and consumption reduction, high quality and high efficiency, etc. Its promotion and application will bring good economic benefits to production enterprises.
[0007] The utility model will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a schematic diagram of the transverse cross-sectional structure of the utility model;
[0009] Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the utility model;
[0010] Figure 3 It is a schematic diagram of the top cross-sectional structure of the utility model.
[0011] In the figure: 1 is a blower, 2 is an air supply pipe, 3 is an air cooling pipe, 4 is an anchor hook, 5 is a heavy castable, 6 is a lightweight mullite brick, 7 is a hot exhaust pipe, 8 is a combustion-supporting air pipe, 9 is a pad, 10 is a rib plate, 11 is a channel steel fixing frame, 12 is a bolt, 13 is a furnace steel structure, and 14 is a refractory brick. Implementation
[0012] like Figure 1 , Figure 2 , Figure 3As shown, a ring furnace air-cooled fire-blocking wall device is composed of a ring furnace body and a fire-blocking wall, etc. The fire-blocking wall is used to block the flow of flue gas in the furnace and prevent the outside cold air from entering the furnace. The air-cooling pipe 3 is made to be bent into a U shape, and a plurality of anchor hooks 4 are evenly welded on the outside of the air-cooling pipe 3 in the furnace. At the same time, a layer of heavy castable 5 is poured on the outside of the air-cooling pipe 3. The heavy castable 5 is tightly connected to the cold air pipe 3 through the pulling force of the anchor hook 4 to prevent the cold air pipe 3 from directly contacting the high-temperature flue gas. Lightweight mullite bricks 6 are used to build other parts to form an air-cooled fire-blocking wall. The air inlet of the air-cooling pipe 3 passes through the furnace top and is connected to the air supply pipe 2 connected to the blower 1 fixedly installed on the steel structure 13 of the ring furnace top. The outside cold air is sent into the air-cooling pipe 3 through the high-speed rotation of the blower 1. The air outlet of the air cooling pipe 3 passes through the top of the annular furnace and is connected to the exhaust pipe 7. The cold air enters the air cooling pipe 3 to cool the air cooling pipe 3 and protect the air cooling pipe 3. At the same time, the cold air absorbs heat in the air cooling pipe 3 and becomes hot air. The heat brought out is connected to the combustion-supporting air pipe 8 through the exhaust pipe 7. The hot air in the combustion-supporting air pipe 8 is used for the combustion-supporting use of the burner. A rib plate 10 and a pad 9 are set on the top of the air cooling pipe 3, and are fixed on the channel steel fixing frame 11 together with the cold air pipe 3. During installation, the channel steel fixing frame 11 overlaps with the furnace body steel structure 13, and the air cooling fire baffle wall and the furnace body steel structure 13 are fixed together by the provided connecting bolts 12, which are very convenient for installation and disassembly. The use of the air cooling fire baffle wall can effectively block the flow of smoke in the furnace, adjust the furnace pressure, and prevent the outside air from entering the furnace to affect the furnace heating effect. At the same time, the hot air after the cold air is preheated in the air cooling pipe can be used for the combustion-supporting use of the burner, and will not cause energy loss. The device has the advantages of reasonable structure, stable operation, high quality and high efficiency. Its promotion and application will bring good economic benefits to production enterprises.
[0013] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An annular furnace air-cooled fire baffle device, comprising an annular furnace body and a fire baffle, characterized in that: An air cooling pipe (3) is arranged in the fire retaining wall. The air inlet of the air cooling pipe (3) passes through the furnace top and is connected to an air supply pipe (2) connected to a blower (1) fixedly installed on the steel structure at the top of the annular furnace body. The air outlet passes through the furnace top and is connected to a hot exhaust pipe (7) connected to a hot air combustion-supporting pipe (8). The top of the air cooling pipe (3) is fixed by welding with a rib plate (10) and a pad (9), and the whole is fixed on a channel steel fixing frame (11). The channel steel fixing frame (11) is fixedly installed on the steel structure (13) at the top of the annular furnace body by bolts (12).
2. The annular furnace air-cooled fire baffle device according to claim 1, characterized in that: The air cooling pipe (3) is in a "U"-shaped curved shape. A stainless steel anchor hook (4) is welded to the outside of a portion of the air cooling pipe (3) in the furnace. A heavy castable (5) is cast along the curved shape of the air cooling pipe (3). The remaining portion is built with lightweight mullite bricks (6) to form an air cooling fire retaining wall.