CN2793555Y

CN2793555Y - Beam-style burner

Info

Publication number: CN2793555Y
Application number: CN 200520030972
Authority: CN
Inventors: 安跃锋
Original assignee: LUOYANG YUXIN METALLURGY FACILITIES CO Ltd
Current assignee: LUOYANG YUXIN METALLURGY FACILITIES CO Ltd
Priority date: 2005-06-14
Filing date: 2005-06-14
Publication date: 2006-07-05
Anticipated expiration: 2015-06-14

Abstract

The utility model discloses a beam-style burner which has the structure that a cross beam (1) is arranged inside an alloying furnace, and the lower end surface of the cross beam is provided with a smoke exhausting hole (7), wherein a gas pipe (2), an air pipe (3) and a cooling pipe (4) are arranged inside the smoke exhausting hole. The air pipe is positioned outside the gas pipe, and an air cavity structure is formed between the inner wall of the air pipe and the outer wall of the gas pipe; the cooling pipe is positioned outside the air pipe, and a cooling cavity structure is formed between the inner wall of the cooling pipe and the outer wall of the air pipe; a smoke exhausting cavity structure is formed between the outer wall of the cooling pipe and the inner wall of the cross beam. The gas pipe is provided with a gas injection mouth (5), and the air pipe is provided with an air injection mouth (6), wherein the air injection mouth is extended out of the cross beam and the gas injection mouth is positioned inside the air injection mouth to form a burning injection mouth. The utility model with the beam-style structure can be directly arranged at a lower position inside an alloying furnace, which not only occupies little space but also enhances burning rate. The utility model can uniformly heat alloy materials and meet the requirements of alloy heating technology, and has the advantages of high burning rate, little space occupation, strong applicability, long service life, no need of regulation of flame, full utilization of energy resource and obvious energy saving effect.

Description

Beam Type Burner

Technical field

The utility model belongs to metallurgical alloy roasting plant technical field, and what relate generally to is a kind of Beam Type Burner.

Background technology

At present, steel plant's alloying furnace toasts employed burner and mainly is made up of gas piping, air duct, be installed in alloying furnace body of heater one side, the burner of this structure needs to form the combustion chamber at the inner grid that increases of alloying furnace, and offer a lot of holes in the middle of the grid, hot gas is ejected into from the space on the alloy furnace charge, thereby reaches the purpose of indirect.Grid is owing to often be subjected to heat, cold-working usefulness, is easy to generate distortion and is not durable, and needs to change after using a period of time.The shortcoming of this type combustion chamber is that the combustion space is little, and fuel can not completing combustion in this combustion space, and the heat that produces during burning can not fully, evenly heat alloy material.In addition, this burner generally can only be provided with a port, and it is undesirable to add thermal effect, if increase port, certainly will strengthen the alloying furnace space, causes equipment integral body to take up room greatly.Because common alloying furnace burner do not take provision for thermal insulation, and burner is in the high-temperature region, and long-term use can cause the burner lost of life or regularly scrap midway, just needs to change burner at set intervals.In use when gas pressure, tempering, circuit fire phenomenon can not occur when spouting velocity matches.Because alloying furnace inside seldom is provided with smoke evacuation system, smog can be discharged from alloying furnace charge door, discharging opening, influences hand stock, discharging operation and surrounding environment.Thus, from the alloy baking technological angle, common alloying furnace burner alloy baking is difficult to satisfy technological requirement; From the using energy source angle, energy resource consumption is big, utilization rate is low; From the equipment use angle, lack service life, tempering and circuit fire phenomenon occur, be unfavorable for manually-operated.So development need of the existing inapplicable modern metallurgical alloy roasting plant of common alloying furnace burner.

Summary of the invention

The purpose of this utility model promptly produces thus, proposes a kind of Beam Type Burner.Effectively improve efficiency of combustion, evenly heat alloy material, prolong the service life of burner.

The utility model realizes that the technical scheme that above-mentioned purpose is taked is: a crossbeam is set, is provided with gas pipe, air hose and cooling tube in this crossbeam, air hose is positioned at outside the gas pipe, forms the air chamber structure between the pipe outer wall of its inwall and gas pipe; Cooling tube is positioned at outside the air hose, form between the outer wall of its inwall and cooling tube and form the smoke extraction chamber structure between cooling chamber structure, its outer wall and crossbeam inwall, on gas pipe, be provided with the gas injection mouth, on air hose, be provided with air jet, air jet stretches out outside the crossbeam, and the gas injection mouth is positioned at air jet and constitutes the combustion jet mouth.

The combustion jet mouth of the utility model setting can be one, also can be two or more.

The utility model reasonable in design.Because it is a girder structure, can be directly installed on the lower position in the alloying furnace, below crossbeam, can form the combustion chamber, need not to increase grid, it is little not only to take up room, and has improved the combustion rate height.The alloy material of below, combustion chamber is looped around around the combustion chamber because of the gravity effect, in this space, combustion medium can burn fully, and directly evenly heats the alloy furnace charge, satisfy the requirement of alloy heating process, help heating of alloying furnace long-time continuous and discharging continuously.The cooling chamber structure of its design can add special-purpose cooling medium (oil or special-purpose cooling water) in cooling chamber, by heat exchange, take away burner top heat, prolongs burner service life.Cold air can be preheating to about 300 ℃ simultaneously, and then enter in the hybrid chamber, the chemical reaction velocity in the time of can increasing burning so greatly improves burning degree, increases the thermal efficiency; The smoke extraction chamber structure of design can be discharged the smog that produces in the combustion process effectively, reduces the air pressure of alloying furnace inside, improves alloying furnace internal mineral feed purity; Its unique laminar flow, mixing design can prevent effectively that tempering, circuit fire phenomenon from taking place.The utility model is applicable to that promptly the rectangular shape alloying furnace is applicable to the cylindrical shape alloy again, have and evenly to heat alloy material, satisfy the requirement of alloy heating process, the combustion rate height, little, the applicability of taking up room is strong, long service life, flame does not need to regulate, and the energy makes full use of, the characteristics of obvious energy conservation.

Description of drawings

Accompanying drawing 1 is the utility model structural representation

Accompanying drawing 2 is accompanying drawing 1 left view

Accompanying drawing 3 is the utility model mounting structure schematic diagram

Accompanying drawing 4 is the side view of accompanying drawing 3

Among the figure: 1, crossbeam, 2, gas pipe, 3, air hose, 4, cooling tube, 5, the gas injection mouth, 6, air jet, 7, exhaust smoke hole, 8, air intake, 9, gas entry, 10, cooling medium inlet, 11, the cooling medium outlet, 12, brace rod, 13, alloying furnace.

The specific embodiment

In conjunction with the accompanying drawings, the embodiment that provides describes in detail the utility model.

In conjunction with shown in Figure 2, present embodiment is that gas pipe 2, air hose 3 and cooling tube 4 are set in square crossbeam 1 as Fig. 1, and each pipeline is welded to connect by discontinuous brace rod 11.Air hose 3 is positioned at outside the gas pipe 2, forms the air chamber structure between the outer wall of its inwall and gas pipe 2; Cooling tube 4 is positioned at outside the air hose 3, forms the cooling chamber structure between the outer wall of its inwall and cooling tube, forms the smoke extraction chamber structure between the inwall of the outer wall of cooling tube 4 and crossbeam 1.Crossbeam 1 inside is formed with the cavity of four sealings thus, and the inside cavity is the combustion gas chamber, be air chamber secondly, is cooling chamber once more, the outermost layer cavity is a smoke extraction chamber, and is separate between these four chambeies, seal.Have gas entry 9 on the gas pipe 2, be communicated with coal gas.Air hose 3 has air intake 8, is connected with air compressor.Have cooling medium inlet 10 and cooling medium outlet 11 on the cooling tube 4, be connected with special-purpose cold oil or special-purpose cooling water tank respectively.Have a plurality of exhaust smoke holes that are communicated with smoke extraction chamber 7 on the lower surface of crossbeam 1.On gas pipe 2, have the hole and weld a suitable short tubular and become gas injection mouth 5, also open a hole and weld the short tube formation air jet 6 of a caliber greater than the gas injection mouth on air hose 3 corresponding positions, the front end of this air jet 6 stretches out outside the crossbeam.Gas injection mouth 5 is positioned at air jet 6 and constitutes single combustion jet mouth.The length of gas injection mouth 5 slightly is shorter than air jet 6, and its effect is that coal gas and air are fully mixed.The combustion jet mouth can be provided with a plurality of as required, promptly makes a plurality of combustion jet mouths on same crossbeam.

Embodiment is directly installed on lower position (as shown in Figure 3) in the alloying furnace 13 with Beam Type Burner in use.Coal gas is entered in the gas pipe 2 by gas entry 9 and is ejected by gas injection mouth 5, and air enters air chamber by centrifugal high pressure fan by air intake 7, is mixed from the combustion jet mouth with coal gas by air jet 6 after by heat exchange with cooling medium and ejects.Cooling medium (oil or special-purpose cooling water) enters cooling chamber by cooling medium inlet 10, enters cooling chamber by cooling medium inlet 10 again after discharging from cooling medium outlet 11 and forms the circulation cooling.The flue gas that burner combustion produces is entered in the smoke extraction chamber by exhaust smoke hole 7, through discharging after by heat exchange with cooling medium.

Claims

1, a kind of Beam Type Burner, it is characterized in that: a crossbeam (1) is set, the lower surface of this crossbeam (1) has exhaust smoke hole (7), be provided with gas pipe (2), air hose (3) and cooling tube (4) in it, air hose (3) is positioned at outside the gas pipe, forms the air chamber structure between the outer wall of its inwall and gas pipe (2); Cooling tube (4) is positioned at outside the air hose (3), form the cooling chamber structure between the outer wall of its inwall and cooling tube (4), form the smoke extraction chamber structure between the inwall of the outer wall of cooling tube (4) and crossbeam (1), on gas pipe (2), be provided with gas injection mouth (5), on air hose (3), be provided with air jet (6), described air jet (6) stretches out outside the crossbeam (1), and gas injection mouth (5) is positioned at air jet (6) and constitutes the combustion jet mouth.

2, Beam Type Burner according to claim 1 is characterized in that: described combustion jet mouth can be one, also can be two or more.

3, Beam Type Burner according to claim 1 is characterized in that: described gas injection mouth (5) is positioned at air jet (6) and is shorter in length than air jet (6).