CN206529398U - Adjustable total oxygen tipburn burner and the kiln with the burner - Google Patents

Abstract

A kind of adjustable total oxygen tipburn burner and the kiln with the burner are disclosed in the utility model, it is arranged on the arch top of kiln, it includes stretching into arch top and therewith sealed outer tube, and it is arranged in the inner tube in the outer tube, gas passage is formed between inner tube and outer tube, the part that the upper end of inner tube passes outer tube and passed in inner tube is slidingly sealed, the upper end of said inner tube, which is additionally provided with, drives it relative to the drive mechanism that outer tube is slided, it passes through the change to burner structure, it is set to realize the adjustment of distance between flame and liquid pool top surface on the premise of not changing natural gas supply pressure.

Description

Adjustable total oxygen tipburn burner and the kiln with the burner

Technical field

The utility model is related to high glass and founds kiln field, more particularly to adjustable total oxygen top blast burner and has The kiln of the burner.

Background technology

In glass manufacturing area, high temperature melting preparation method is the most generally used., must when preparing glass using high temperature melting method Indispensable equipment is glass furnace.The effect of glass furnace is by into the clinker of the powder that distributes and admixture（Cullet） High temperature melting in kiln, clarify and formed the glass metal for meeting forming requirements.Its primary structure includes liquid pool, convection current chamber, arch top And the burner of convection current chamber is stretched to from arch top, carried out fully in the case of comburant oxygen by the natural gas in burner Burning, into convection current chamber, the heat of raw material is melted in supply, and final glass metal is stored in liquid pool.

The burner used in this glass furnace, also referred to as total oxygen tipburn burner, be one kind by natural gas as combustion The burner that material, pure oxygen combustion-supporting and bocca are stretched into from arch top.The Specification For Structure accompanying drawing of existing total oxygen tipburn burner Shown in partial Fig. 9, the burner is formed by the different pipe nesting of two diameters, is connected with oxygen, inner tube and is led in outer tube Enter natural gas, the bottom of two tubes is fixed on arch top jointly, inner and outer pipes outlet is flushed, and is relatively fixed.

The length of the flame sprayed from bocca and the volume of flame depend on the supply gas pressure of natural gas, i.e. when interior When pipe supply gas pressure is high, flame length, the volume sprayed in bocca is big, and when supply gas pressure is low, and the shorter volume of flame is not yet Greatly.It can be seen from the chemical formula that combustion of natural gas reacts, it is desirable to which natural gas fully burns under pure oxygen environment, it is necessary to portion Natural gas, the ratio of two parts of oxygen are to being passed through gas in pipe, therefore, adjust the length of flame with close to or away from liquid pool with suitable Needs should be produced, it is necessary to change supply gas pressure, especially when increasing supply gas pressure so that flame extends, the pressure in kiln Increase can aggravate the gas backstreaming in convection current chamber, and side wall withstands on temperature rise therewith in the case that backflow aggravates with arch, sternly The refractory material of arch top and kiln furnace sidewall even can be burnt during weight, production accident is caused.

Utility model content

First purpose of the present utility model is a kind of adjustable total oxygen tipburn burner of offer, and it passes through to burner The change of structure, allows it realizing distance between flame and liquid pool top surface on the premise of not changing natural gas supply pressure Adjustment.

Above-mentioned purpose of the present utility model technical scheme is that：A kind of adjustable total oxygen tipburn combustion Burner, is arranged on the arch top of kiln, and it includes stretching into arch top and therewith sealed outer tube, and is arranged in the outer tube Inner tube, is formed with gas passage between inner tube and outer tube, the upper end of inner tube passes outer tube and close in the part slip that inner tube is passed Envelope, the upper end of said inner tube, which is additionally provided with, drives it relative to the drive mechanism that outer tube is slided.

By using above-mentioned technical proposal, natural gas is passed through in inner tube, is passed through in the gas passage between outer tube and inner tube Oxygen, outer tube stretches into arch top and fixation, the natural gas now introduced in inner tube, and the oxygen being passed through in outer tube supports it to burn, when When needing the distance between liquid pool inside the flame and glass furnace of change burning device, pass through lower end of the drive mechanism to inner tube The length for stretching out outer tube is finely adjusted, you can realize the adjustment of flame and liquid pool distance, and this adjustment need not change inner tube The supply gas pressure of middle natural gas, therefore, this adjustment do not result in the air-flow change in kiln in itself.In addition, inner tube and outer tube Between be slidingly sealed outside arch top, both sealing can be kept during inner tube is slided relative to outer tube, prevent oxygen from letting out Leakage influence natural gas burning.

Preferably, the elevating mechanism includes the rack being fixed on the outer wall of inner tube and the gear being engaged with, institute State the distance between the gyroaxis of gear and the lower end of outer tube and keep constant.

By using above-mentioned technical proposal, rack pinion is accurate, it is possible to achieve inner tube adjustable height it is more accurate Adjustment；Also, due to burner be able to need not exempt from itself to inner tube conduction portion heat, accordingly, it would be desirable to consider elevating mechanism It is heated after transmission, the backlash of rack-and-pinion is easy to adjust, and after expanded by heating, gear can be adjusted by way of translation The backlash of the engagement of rack, prevents both due to heated and stuck.

Preferably, one end connection stepper motor of the gyroaxis of the gear.

By using above-mentioned technical proposal, the Adjustment precision of stepper motor is higher, passes through the circle for controlling stepper motor to turn over Number, can accurately control the displacement of inner tube, be easy to the spacing of accurate adjustment flame and liquid pool top surface.

Preferably, one end of the gyroaxis of the gear is provided with crank.

By using above-mentioned technical proposal, crank substitution motor can realize manually adjusting for gear, to adapt to one slightly Adjust occasion.

Preferably, it is provided between said inner tube and outer tube for forming the leather cup being slidingly sealed.

By using above-mentioned technical proposal, the precision of cup packing is not high, but advantage of lower cost, even more important Be, though using the leather cup of synthetic rubber manufacture the most common, its highest tolerable temperature can also more than more than 150 degree, because This, is suitable for burner.

Preferably, air inlet pipe is also provided with and communicated with the outer tube, the axis of the air inlet pipe is perpendicular to outer tube axis.

By using above-mentioned technical proposal, air inlet pipe introduces oxygen to the annular region between inner and outer pipes, and its axis hangs down Directly in outer tube axis, therefore, on oxygen meeting blow-through to the outer wall of inner tube that outside is introduced, inner tube is tentatively cooled down.

Second purpose of the present utility model be to provide a kind of glass furnace, its adjustable total oxygen above-mentioned by introducing Tipburn burner so that the length of flame in kiln can be adjusted in the case where not changing supply gas pressure, to keep away as far as possible Exempt from due to the backflow aggravation caused by adjustment supply gas pressure in convection current chamber.

Above-mentioned purpose of the present utility model technical scheme is that：A kind of glass furnace, includes Above-mentioned adjustable total oxygen tipburn burner.

By using above-mentioned technical proposal, using above-mentioned adjustable total oxygen tipburn burner, need adjustment flame with Between liquid pool top surface apart from when, drive inner tube to be lifted relative to outer tube by drive mechanism between inner and outer pipes, so as to light The inner tube lower end of flame is close to or away from liquid pool top surface, without the sealing relationship between change burning device and arch top and interior Supply gas pressure in pipe.

Preferably, the glass furnace also includes opening up on arch top and the side wall extended downwardly from arch top, the arch top Have for the mouth that stretches into by the outer tube, the outer tube and stretch between mouth to seal and fix.

By using above-mentioned technical proposal, whole flame height adjustment process does not need outer tube movement, by it and arch top it Between seal, heat and gas can be prevented to scatter and disappear.

Preferably, kiln steelframe is fixedly provided with the outer surface on the arch top, the outer tube is fixed on kiln steelframe.

By using above-mentioned technical proposal, the fixation of inner tube in existing burner, often by above arch top Hook is set on wall, inner tube upper end is bent and mounted into hook, the free degree of this fixed form inner tube is larger, unfavorable Fixation in its position.Kiln steelframe is set on arch top, and outer tube is fixed on kiln steelframe, inner tube passes through driving machine Structure is fixed with outer tube relative position, in this way, the relative position between glass furnace of burner more can be fixed reliably, Preventing from burning in inner tube, to cause burner to be fixed unreliable for the gas pulsation of generation.

In summary, the utility model has the advantages that：Natural gas is passed through in inner tube, between outer tube and inner tube Oxygen is passed through in gas passage, outer tube stretches into arch top and fixation, the natural gas introduced in this time point inner tube, the oxygen being passed through in outer tube Gas supports it to burn, during the distance between liquid pool inside the flame and glass furnace that need change burning device, passes through driving Mechanism is finely adjusted to the length that outer tube is stretched out in the lower end of inner tube, you can realize the adjustment of flame and liquid pool distance, and this Adjustment need not change the supply gas pressure of natural gas in inner tube, therefore, and this adjustment does not result in the air-flow change in kiln in itself. In addition, being slidingly sealed between inner tube and outer tube outside arch top, it can keep both during inner tube is slided relative to outer tube Sealing, prevents oxygen leakage from influenceing combustion of natural gas.

Brief description of the drawings

Fig. 1 is the interior views of kiln；

Fig. 2 is the mounting structure figure between the arch top of kiln and kiln steelframe；

Fig. 3 is the Fig. 2 done for display burner mounting structure partial enlarged view A；

Fig. 4 is the structure principle chart of burner；

Fig. 5 is the 3-D view of the burner in embodiment 2；

Fig. 6 is Fig. 5 partial enlarged view B；

Fig. 7 is the 3-D view of the burner in embodiment 3；

Fig. 8 is Fig. 7 partial enlarged view C；

Fig. 9 is the accompanying drawing referred in background technology.

In figure, 1, outer tube；10th, rotary shaft；11st, rocking bar；12nd, air inlet pipe；13rd, platform；14th, reinforcement；15th, support；2、 Inner tube；20th, air inlet；22nd, sealing ring；3rd, gas passage；4th, leather cup；5th, drive mechanism；50th, gear；51st, rack；52nd, skin Band；53rd, stepper motor；54th, crank；56th, ratchet one-way mechanism；6th, arch top；60th, mouth is stretched into；61st, seal；7th, side wall；8th, liquid Pond；9th, kiln steelframe；90th, steel loop；91st, welding hanging ring;92nd, U-shaped flange；920th, fastening flange；93rd, curved plate；94th, it is fixed Steel plate；100th, convection current chamber.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment 1

A kind of glass furnace, as shown in fig. 1, including bottom wall, and enclose in the outer peripheral side wall 7 of bottom wall, in bottom wall The liquid pool 8 for the glass metal interim storage melted is formed in the region that upper side wall 7 is enclosed, the top of wall 7, which is covered, in side is provided with arch Top 6, forms convection current chamber 100 between liquid pool 8 and the inwall on arch top 6.Bottom wall, side wall 7 and arch top 6 use refractory material system Into.

With reference to Fig. 2, some connection convection current chambers 100 are offered on arch top 6 and stretch into mouth 60, according to the size with arch top 6, Or the specification of glass furnace, reasonable selection stretches into the setting quantity of mouth 60.Stretch into and adjustable total oxygen tipburn is fixed with mouth 60 Burner, melts the flame of glass fragment for being provided into glass furnace.

The kiln steelframe 9 for support-adjustable total oxygen tipburn burner is provided with the outer surface on arch top 6, arch top 6 is needed Multiple adjustable total oxygen tipburn burners are fixed, the setting form of kiln steelframe 9 there are two kinds：One is whole adjustable total oxygens Tipburn burner shares a kiln steelframe 9；It is another correspond to it is each stretch into the upper end of mouth 60 set therewith quantity it is identical and Separate kiln steelframe 9.It is to share steel frame construction in Fig. 2, i.e., some curved plates is set along the bending direction on arch top 6 93, the arragement direction of multiple arcs steel plate 93 is provided with some fixation steel plates being welded and fixed with whole curved plates 93 94, burner is attached on fixation steel plate 94.The structure that each burner is separately provided kiln steelframe 9 is similar with aforesaid way. Also, because the structure on arch top 6 is ever-changing, it should be understood by those skilled in the art that, the effect of kiln steelframe 9 is Burner is fixed on arch top 6, to avoid burner from being shaken in burning, the flame envelope of flame and the top of liquid pool 8 is influenceed The distance in face.

Kiln steelframe 9 is additionally included in the top of extending port 60 and is soldered to the U-shaped method of the side of fixation steel plate 94 as shown in Figure 3 Orchid 92, U-shaped flange 92 has been bolted fastening flange 920, and both fix a rotary shaft 10 jointly, and burner is attached to Outside rotary shaft 10 between U-shaped flange 92 and fastening flange 920.One is radially provided with the outer surface of rotary shaft 10 to shake Bar 11, the space of flange snapping formation is slightly larger than combustor external size, promotes rocking bar 11 to make burner around rotary shaft 10 A small inclination angle is turned over slightly, to adapt to installation site of the burner on arch top 6.

Embodiment 2

A kind of adjustable total oxygen tipburn burner, with reference to Fig. 4, including is fixed to U rows flange 92 and abutted flange on arch top 6 Outer tube 1 between 920, and the inner tube 2 being arranged in outer tube 1, outer tube 1 from stretch into mouth 60 stretch into kiln and the lower end mouth of pipe with The inwall on arch top 6 is substantially flush, and is fixed between the two by seal 61, to prevent heat from stretching into certainly between mouth 60 and outer tube 1 Clearance leakage, seal 61 can use existing any sealing ring, as long as its tolerable temperature reaches requirement.Certainly, Seal 61 is not provided with, the leakage rate for stretching into mouth 60 is also unlikely to excessive influence kiln normal work.

As shown in figure 4, when outer tube 1 is fixed on when stretching into mouth 60 of arch top 6, it is impossible to make completely the central axis of outer tube 1 with The normal for stretching into mouth 60 coincides, cause outer tube 1 not exclusively vertically with arch top 6, now finely tuned by rocking bar 11 outer tube 1 is complete Perpendicular to mouth 60 is stretched into, the sealing between outer tube 1 and arch top 6 is realized with fit seal 61.

With reference to Fig. 4, the center of outer tube 1 is equipped with inner tube 2, and the central axis of outer tube 1 is overlapped with the central axis of inner tube 2. The outside dimension of inner tube 2 is half of the outside dimension of outer tube 1 or so, and gas passage 3 is formed between inner tube 2 and outer tube 1.Inner tube 2 In be passed through natural gas as fuel, combustion-supporting oxygen is provided into gas passage 3 by outer tube 1, the ratio of two kinds of gas is about Coordinate two parts of oxygen for 1 part of natural gas, so that natural gas fully burns.

The air inlet pipe 12 being communicated in gas passage 3, air inlet pipe 12 are installed on one end lateral wall of the outer tube 1 away from arch top 6 Central axis and outer tube 1 central axis upright.One end bending of the inner tube 2 away from arch top 6 is in inverted L shape, and inciting somebody to action for the mouth of pipe 20 is outer Portion's natural gas introduces inner tube 2.

Inner tube 2 is provided with leather cup 4 passing at outer tube 1, leather cup 4 can be one or a pair, the structure of leather cup 4 with it is existing Have in technology inflator or other need to slide identical in sealed structure, the lip of leather cup 4 cloth in gas passage 3 Put.When leather cup 4 is in pairs in use, the lip of two leather cups 4 is relative with lip, with the cunning of the both direction to inner tube 2 along outer tube 1 Shifting movement is fixed.

As shown in Fig. 5 to 6, the top of outer tube 1 is provided with drive mechanism 5 with corresponding on the lateral wall of inner tube 2.Driving machine Structure 5 include gear 50, rack 51, stepper motor 53 and be connected to stepper motor 53 output shaft and gear 50 gyroaxis it Between V belt translation structure 52.Specifically, the top of outer tube 1 is provided with the platform 13 of one piece of stretching outer tube 1, and platform 13 stretches out outer One piece of reinforcement 14 is set between the lower surface and the lateral wall of outer tube 1 on the top of pipe 1, to increase the stability of platform 13.

Platform 13 is vertically and fixedly provided with revolving support gear between two supports 15, two supports 15 close to one end of inner tube 2 50 rotating shafts shared with the belt wheel of V belt translation structure.Stepper motor 53 is fixed on the side of the upper surface support 15 of platform 13.

Rack 51 vertically is installed with the lateral wall of inner tube 2, the tooth profile parameter of rack 51 is adapted to gear 50 so that two Person can be with engaged transmission.By the rotation of stepper motor 53, drive gear 50 is rotated, and gear 50 engages drive tooth with rack 51 Bar 51 carries out the motion of vertical direction, so as to realize moving up and down for inner tube 2.

Above-mentioned adjustable total oxygen tipburn burner operation is as follows：

Oxygen is passed through from the air inlet pipe 12 of outer tube 1, air inlet 20 is passed through natural gas, and oxygen is with natural gas at the bottom of inner tube 2 Portion collects, and the igniter in kiln, which lights mixed gas, to be allowed to burn.Due to air inlet pipe 12 be installed on drive mechanism 5 it Under, the relatively low oxygen of the temperature of introducing vertically blows to the outer wall of inner tube 2 in air inlet pipe 12, makes to stretch at the mouth of pipe on arch top 6 and burns Heat be not communicated up, prevent inner tube temperature height from causing the expanded by heating of rack 51 for being fixed on its outer wall, influence drive mechanism 5 Middle gear 50 is engaged with rack 51.

Under original state, the liquid level of liquid pool 8 is relatively low, at this point it is possible to by the drive gear 50 of stepper motor 53, make inner tube 2 To decline with close to the top surface of liquid pool 8；Raised with the liquid level of the liquid pool 8 inside glass furnace, be again turned on stepper motor 53, Driving inner tube 2 rises, and adjustment flame and the adjustment of the liquid level distance of liquid pool 8, the adjustment of this process need not change inner tube 2 and outer tube Admission pressure in 1, therefore do not result in the flowing increase of the convection current chamber 100 in kiln yet.

Embodiment 3

A kind of adjustable total oxygen tipburn burner, with reference to Fig. 7 and Fig. 8, the difference of itself and embodiment 2 is：Drive mechanism 5 Place cancels stepper motor 53, uses the drive gear 50 of crank 54 instead and rotates, after preventing that crank 54 from adjusting, gear 50 and rack 51 It is unexpected by external disturbance to be driven, ratchet one-way mechanism 56 is installed in the rotating shaft of gear 50, crank 54 is rotated with moving gear 50 rotate, and realize the one-directional rotation of gear 50 by ratchet one-way mechanism 56, when needing to rotate backward, and control ratchet The ratchet of single-phase mechanism 56 is lifted, and ratchet is overturn with gear 50, is reached after reversion adjustment position, putting down ratchet makes It is caught between the groove of ratchet, can be continued to play non-return effect, be locked with the position to gear 50 and rack 51.

This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected in right of the present utility model by Patent Law.

Claims (9)

1. a kind of adjustable total oxygen tipburn burner, is arranged on the arch top (6) of kiln, it is characterized in that：It includes stretching into arch top (6) and sealed outer tube (1), and the inner tube (2) being arranged in the outer tube (1) therewith, between inner tube (2) and outer tube (1) Gas passage (3) is formed with, the upper end of inner tube (2) passes outer tube (1) and is slidingly sealed in the part that inner tube (2) is passed, described The upper end of inner tube (2), which is additionally provided with, drives it relative to the drive mechanism (5) that outer tube (1) is slided.

2. adjustable total oxygen tipburn burner according to claim 1, it is characterized in that：The drive mechanism（5）Including solid Due to the rack (51) on the outer wall of inner tube (2) and the gear (50) being engaged with, the gyroaxis of the gear (50) with it is outer Manage the distance between the lower end of (1) and keep constant.

3. adjustable total oxygen tipburn burner according to claim 2, it is characterized in that：The gyroaxis of the gear (50) One end connection stepper motor (53).

4. adjustable total oxygen tipburn burner according to claim 2, it is characterized in that：The gyroaxis of the gear (50) One end is provided with crank（54）.

5. adjustable total oxygen tipburn burner according to claim 1, it is characterized in that：Said inner tube (2) and outer tube (1) it Between be provided with for forming the leather cup (4) that is slidingly sealed.

6. adjustable total oxygen tipburn burner according to claim 1, it is characterized in that：Also connection is set on the outer tube (1) Air inlet pipe (12) is equipped with, the axis of the air inlet pipe (12) is perpendicular to outer tube (1) axis.

7. a kind of glass furnace, it is characterized in that, including just like the adjustable total oxygen tipburn described in claim 1 to 6 any one Burner.

8. glass furnace according to claim 7, it is characterized in that, the glass furnace also includes arch top (6) and from arch Offered on the side wall (7) that top (6) is extended downwardly, the arch top (6) for stretching into mouth (60), institute by the outer tube (1) Sealing is fixed between stating outer tube (1) and stretching into mouth (60).

9. glass furnace according to claim 8, it is characterized in that, it is fixedly provided with kiln on the outer surface of the arch top (6) Steelframe (9), the outer tube (1) is fixed on kiln steelframe (9).