CN202350493U

CN202350493U - Cupola

Info

Publication number: CN202350493U
Application number: CN2011204773180U
Authority: CN
Inventors: 李文江; 冯永勤; 张娜
Original assignee: SHANXI HUAER POWER MACHINERY CO Ltd
Current assignee: SHANXI HUAER POWER MACHINERY CO Ltd
Priority date: 2011-11-26
Filing date: 2011-11-26
Publication date: 2012-07-25
Anticipated expiration: 2021-11-26

Abstract

The utility model discloses a cupola belonging to the technical field of a cupola for melting ingot pig into molten iron, and provides a cupola capable of realizing uniform air intake of an air inlet zone and improving the heat efficiency. The cupola has a vertical cylindrical shape and is sequentially provided with a deduster, a chimney, a hot wind liner, an air inlet zone and a hearth from top to bottom; the air inlet zone comprises an outer wall and an inner wall; an air inlet is arranged on the outer wall; the shape of the inner cavity of the outer wall is an irregular ellipse with a small radius of curvature at the air inlet and a large radius of curvature at the surface opposite to the air inlet; the inner wall is eccentrically arranged in the inner cavity of the outer wall and is far away from the air inlet, the area of the part far away from the air inlet is gradually reduced due to a special-shaped cross section formed by the inner diameter of the outer wall and the outer diameter of the inner wall, and therefore the constant pressure is guaranteed to realize uniform air intake in the cupola, the heat efficiency is improved, the burning time is shortened, the consumption of coke is reduced, the economy is good, and the environmental pollution is reduced.

Description

A kind of furnace cupola

Technical field

A kind of furnace cupola of the utility model belongs to the furnace cupola technical field that casting pig is fused into molten iron.

Background technology

Furnace cupola is the visual plant of melting iron in the Foundry Production, casting pig is fused into to be poured into behind the molten iron unpacks after cooling in the sand mold and obtain foundry goods, is mainly used in iron casting production; Also in order to cooperate pneumatic steelmaking, furnace cupola is a kind of vertical cylindrical shape smelting furnace, comprises deduster, chimney, hot blast courage, air intake band, furnace bottom, blast pipe and warm-air pipe; The outer wall of the air intake band of furnace cupola commonly used and the air intake band of inwall formation rule ring-type, the ring-type air intake band of this rule reduces at the local pressure away from air inlet gradually, causes air intake inhomogeneous easily; Thereby cause the local temperature far away lower apart from air inlet; The time that can only prolong air intake just can reach the purpose of melting molten iron, has caused the thermal efficiency lower, and the consumption of coke is more; Not only less economical, and bring bigger environmental pollution.

The utility model content

The utility model overcomes the deficiency that prior art exists, and it is even that technical problem to be solved provides a kind of air intake of air intake band that can make, and improves the furnace cupola of the thermal efficiency.

In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of furnace cupola, profile are vertical cylindrical shape; Be disposed with deduster, chimney, hot blast courage, air intake band and furnace bottom from top to bottom; Blast pipe is arranged on the side of said chimney, and warm-air pipe is arranged on the shaft side and hot blast courage and air intake band are communicated with, and said air intake band comprises outer wall and inwall; Outer wall is provided with air inlet; Said outer wall inner chamber to be shaped as air inlet place radius of curvature little, the irregular ellipse that the opposite radius of curvature of air inlet is big, described inwall are provided with away from air inlet is eccentric in the inner chamber of outer wall.

The beneficial effect that the utility model compared with prior art has is: the profiled cross-section that the external diameter of outer wall internal diameter and inwall forms makes and reduces gradually at the position area away from air inlet; Thereby guaranteed the constant of pressure, made that the interior air intake of stove is even, improved the thermal efficiency; Reduced the time of burning stove; Reduced the consumption of coke, good economy performance, and reduced environmental pollution.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further to specify.

Fig. 1 is the structural representation of a kind of furnace cupola of the utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

1 is that deduster, 2 is that chimney, 3 is that blast pipe, 4 is that warm-air pipe, 5 is that air intake band, 6 is that furnace bottom, 7 is that hot blast courage, 8 is that outer wall, 9 is that inwall, 10 is an air inlet among the figure.

The specific embodiment

Like Fig. 1, shown in Figure 2, a kind of furnace cupola of the utility model, profile is vertical cylindrical shape; Be disposed with deduster 1, chimney 2, hot blast courage 7, air intake band 5 and furnace bottom 6 from top to bottom; Blast pipe 3 is arranged on the side of said chimney 2, and warm-air pipe 4 is arranged on the shaft side and hot blast courage 7 and air intake band 5 are communicated with, and said air intake band 5 comprises outer wall 8 and inwall 9; Outer wall 8 is provided with air inlet 10; Said outer wall 8 inner chambers to be shaped as air inlet 10 place's radius of curvature little, the irregular ellipse that the opposite radius of curvature of air inlet 10 is big, described inwall 9 in the inner chamber of outer wall 8 away from air inlet 10 eccentric settings.

In the utility model; The profiled cross-section that the external diameter of outer wall 8 internal diameters and inwall 9 forms makes and reduces gradually at the position area away from air inlet 10, thereby guaranteed the constant of pressure, makes that air intake is even in the stove; Overcome common furnace cupola and caused the uneven defective of furnace temperature owing to the wind-force deficiency in position away from air inlet; Improve the thermal efficiency, reduced the time of burning stove, reduced the consumption of coke.

Claims

1. furnace cupola; Profile is vertical cylindrical shape; Be disposed with deduster (1), chimney (2), hot blast courage (7), air intake band (5) and furnace bottom (6) from top to bottom; Blast pipe (3) is arranged on the side of said chimney (2), and warm-air pipe (4) is arranged on the shaft side and hot blast courage (7) and air intake band (5) are communicated with, and said air intake band (5) comprises outer wall (8) and inwall (9); Outer wall (8) is provided with air inlet (10); It is characterized in that: to locate radius of curvature little for the air inlet (10) that is shaped as of said outer wall (8) inner chamber, and the irregular ellipse that the opposite radius of curvature of air inlet (10) is big, described inwall (9) are provided with away from air inlet (10) is eccentric in the inner chamber of outer wall (8).