CN202347039U

CN202347039U - Top-combustion hot-blast stove

Info

Publication number: CN202347039U
Application number: CN2011204457272U
Authority: CN
Inventors: 刘世聚; 刘力铭; 刘�东; 崔方辉; 范剑超
Original assignee: HENAN YUXING HOT BLAST STOVE ENGINEERING TECHNOLOGY Co Ltd
Current assignee: HENAN YUXING HOT BLAST STOVE ENGINEERING TECHNOLOGY Co Ltd
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-07-25
Anticipated expiration: 2021-11-11

Abstract

The utility model relates to a top-combustion hot-blast stove which is used for effectively solving the problems of incompleteness and instability in combustion, poor performance of load regulation, poor heat transfer effect and low utilization rate of a heat accumulator. A combustion air distribution annular passage and a coal gas distribution annular passage are arranged in a combustor at the lower part of a vaulted combustion chamber; the combustion air distribution annular passage is communicated with a combustion air inlet pipe; the coal gas distribution annular passage is communicated with a coal gas inlet pipe; the combustion air distribution annular passage is communicated with an air nozzle through an air passage; the coal gas distribution annular passage is communicated with a coal gas nozzle through a coal gas passage; the heat accumulator is arranged in a heat accumulating chamber below the combustor; the heat accumulator is arranged on a stove grate; a cold air chamber is arranged at the lower part of the stove grate; a wall body of the cold air chamber is provided with a flue gas discharge pipe and a cold air inlet pipe; and a hot air outlet pipe is arranged above the combustion air distribution annular passage. The top-combustion hot-blast stove has the advantages of novel and unique structure and good use effect, and effectively solves the problems of incompleteness and instability in combustion, poor heat transfer effect and low utilization rate of the heat accumulator.

Description

A kind of top combustion stove

Technical field

The utility model relates to hotblast stove, particularly a kind of top combustion stove.

Background technology

The hotblast stove that the blast furnace ironmaking that uses is at present used; The problem of coal gas and the inhomogeneous incomplete combustion that causes of the not good gentle distributions of air mixed or combustion instability and load adjustment ability difference because of its ubiquity; And researched and developed hotblast stove of a great variety, yet owing to the problem that exists on its structure, hotblast stove also has heat-transfer effect difference and the low situation of poultry hot body utilization ratio; Can't guarantee the operation that hotblast stove is stable, thus improve and innovate imperative.

Summary of the invention

To above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of top combustion stove, can solve effectively that incomplete combustion, combustion instability, load adjustment ability are poor, heat-transfer effect difference and the low problem of poultry hot body utilization ratio.

The technical scheme that the utility model solves is, comprises vaulted type combustion chamber, burner, regenerator and cold air chamber, and columnar burner is arranged at bottom, vaulted type combustion chamber; Have combustion air to distribute circuit and coal gas to distribute circuit in the burner, combustion air distributes circuit and combustion air inlet pipe to be connected, and coal gas distributes circuit and gas inlet pipe to be connected; Combustion air distributes circuit to be connected through air passageways and air nozzle; Coal gas distributes circuit to be connected through gas flue and gasburner, and there is regenerator the below of burner, and heat storage is arranged in the regenerator; Heat storage places on the fire grate; The cold air chamber of the regenerator of placing below is arranged at the fire grate bottom, is connected to smoke discharge tube and cold wind inlet pipe on cold air chamber's body of wall, above combustion air distribution circuit, the hot-blast outlet pipe on the combustor sidewalls of being contained in is arranged.

The utility model novel structure is unique, and result of use is good, and it is poor effectively to solve incomplete combustion, combustion instability, load adjustment ability and heat-transfer effect, the low problem of poultry hot body utilization ratio.

Description of drawings

Fig. 1 is the structural front view of the utility model.

Fig. 2 is the structure sectional view (not containing hot-blast outlet pipe) of the utility model.

Fig. 3 be the utility model Fig. 1 A-A to the structure sectional view.

Embodiment

Elaborate below in conjunction with the embodiment of accompanying drawing to the utility model.

Provide by Fig. 1-Fig. 3; The utility model comprises vaulted type combustion chamber, burner, regenerator and cold air chamber, and columnar burner 2 is arranged at 1 bottom, vaulted type combustion chamber, has combustion air to distribute circuit 7 and coal gas to distribute circuit 5 in the burner; Combustion air distributes circuit and combustion air inlet pipe 8 to be connected; Coal gas distributes circuit and gas inlet pipe 6 to be connected, and combustion air distributes circuit to be connected through air passageways 3b and air nozzle 4b, and coal gas distributes circuit to be connected through gas flue 3a and gasburner 4a; There is regenerator 10 below of burner; Heat storage 9 is arranged in the regenerator, and heat storage places on the fire grate 15, and the cold air chamber 11 of the regenerator of placing 10 belows is arranged at the fire grate bottom; Be connected to smoke discharge tube 12 and cold wind inlet pipe 13 on cold air chamber's body of wall, above combustion air distribution circuit 7, the hot-blast outlet pipe 14 on the combustor sidewalls of being contained in arranged.

Described heat storage 9 has at least two-layer; Described combustion air distributes circuit 7 to be contained in the below that coal gas distributes circuit 5, and places the inwall of columnar burner simultaneously; Described combustion air distributes circuit 7 and coal gas to distribute the cross section of circuit 5 all rectangular, and combustion air distributes circuit 7 and coal gas to distribute air passageways 3b and the gas flue 3a that is evenly equipped with the interleaved arrangement on the circuit respectively; Described gasburner 4a and air nozzle 4b are the skewed upper end that is contained in gas flue 3a and air passageways 3b respectively, and gasburner 4a and air nozzle 4b and columnar burner 2 are connected.

The utility model is simple and reasonable; Solve effectively jet-stream wind mix not good, burning is insufficient, heat transfer-accumulation of heat weak effect, structural unstable problem; Thereby guarantee that burning is complete, load adjustment ability is high and poultry hot body utilization ratio is high; And then can fuel saving, practice thrift investment, reduce spent air temp and quantity discharged, minimizing environmental pollution, economic and social benefit is remarkable.

Claims

1. a top combustion stove comprises vaulted type combustion chamber, burner, regenerator and cold air chamber, it is characterized in that; Columnar burner (2) is arranged at bottom, vaulted type combustion chamber (1); Have combustion air to distribute circuit (7) and coal gas to distribute circuit (5) in the burner, combustion air distributes circuit and combustion air inlet pipe (8) to be connected, and coal gas distributes circuit and gas inlet pipe (6) to be connected; Combustion air distributes circuit to be connected through air passageways (3b) and air nozzle (4b); Coal gas distributes circuit to be connected through gas flue (3a) and gasburner (4a), and there is regenerator (10) below of burner, and heat storage (9) is arranged in the regenerator; Heat storage places on the fire grate (15); The cold air chamber 11 of regenerator of placing (10) below is arranged at the fire grate bottom, is connected to smoke discharge tube (12) and cold wind inlet pipe (13) on cold air chamber's body of wall, above combustion air distribution circuit 7, the hot-blast outlet pipe (14) on the combustor sidewalls of being contained in is arranged.

2. top combustion stove according to claim 1 is characterized in that, described heat storage (9) has at least two-layer.

3. top combustion stove according to claim 1 is characterized in that, described combustion air distributes circuit (7) to be contained in the below that coal gas distributes circuit (5), and places the inwall of columnar burner simultaneously.

4. top combustion stove according to claim 1; It is characterized in that; Described combustion air distributes circuit (7) and coal gas to distribute the cross section of circuit (5) all rectangular, and combustion air distributes circuit (7) and coal gas to distribute air passageways (3b) and the gas flue (3a) that is evenly equipped with the interleaved arrangement on the circuit respectively.

5. top combustion stove according to claim 1; It is characterized in that; Described gasburner (4a) and air nozzle (4b) are the skewed upper end that is contained in gas flue (3a) and air passageways (3b) respectively, and gasburner (4a) and air nozzle (4b) and columnar burner (2) are connected.