CN205473611U - Joint nozzle - Google Patents

Abstract

The utility model discloses a joint nozzle. Joint nozzle includes the nozzle body, set up in the nozzle mouth of nozzle body head, and set up in the ignition of nozzle body afterbody, this internal shaping of nozzle have with but nozzle body the central axis is center gas fuel passag, gasification agent passageway and the powdered coke passageway of circumference setting from inside to outside, but gas fuel passag the gasification agent passageway and the exit end of powdered coke passageway all moves towards the nozzle mouth and the material of blowing out all move towards nozzle mouth center department collects, make and follow but the combustible gas that the gas fuel passag exit end erupted goes to spray and follows powdered coke and follow that powdered coke passageway exit end erupted the air or the oxygen that erupt in the gasification agent passageway exit end make combustible gas, powdered coke and air or oxygen intensive mixing. Joining through the combustible gas realizes the abundant burning of mutually supporting of fixed carbon and volatility, has reduced the lime -ash carbon residue of powdered coke burning production.

Description

A kind of associating burner

Technical field

This utility model belongs to semicoke and raw coke oven gas field of combustion technology, is specifically related to a kind of semicoke with waste The associating burner of the common charging of coal gas hydrogen manufacturing gained stripping gas.

Background technology

China's low-order coal reserves are very big, account for the 35% of coal in China reserves, mainly comprise brown coal with secondary Bituminous coal (jet coal, non caking coal, weakly caking coal), has that volatile matter is high, caloric value is relatively low, glutinous The features such as knot property is weak.For the low-order coal that the low-order coal especially oil content of China is higher, use low temperature Pyrolytic process, can be converted into semicoke by its upgrading, and by-product is to have higher economic worth simultaneously Coal tar and raw coke oven gas, be one of the effective way of low-order coal clean utilization.

In recent years, low-temperature pyrolysis of coal technology is developed rapidly in China；Additionally, along with carbide, Metallurgical industry structural adjustment and the enforcement of target for energy-saving and emission-reduction, occur in that superfluous the showing of semicoke production As.Semicoke is the major product of coal dry distilling, is used for producing carbide, as blast furnace blowing material, gasification Raw materials etc., along with there is easy situation in semicoke in recent years, if semicoke alternative fuel coal can be used Or part of fuel coal is as Power Plant Fuel, superfluous not by effectively alleviating current semicoke market supply local Profit present situation.But, compared with raw coal, semicoke has that volatile matter is low, calorific value high, volatile matter Low cause semicoke to be not easy to be lighted, thus it is high to ultimately result in semicoke ignition point, even if after lighting, also There will be combustion flame short, furthermore conventional combustion be that in fuel, fixed carbon and volatile matter cooperate burning, Because volatile matter is low in semicoke, makes the imbalance that cooperates between fixed carbon and volatile matter, cause semicoke Burning insufficient, during ultimately resulting in coal-char combustion, lime-ash carbon residue content is high, uses in prior art Semicoke and raw coal are mixed the mode (semicoke ratio is generally below 30%) of burning and are burnt in typical coal-fired boiler, Utilize the volatile matter in raw coal to make up low the brought defect of volatile matter in semicoke, but semicoke is with former Coal mixing proportion is low, limits the extensive utilization of semicoke；Prior art also has and directly semicoke is led to Cross what fluid bed carried out burning, utilize fluid bed to make semi-coke powder be suspended state, increase and the connecing of oxygen The long-pending mixability with semi-coke powder with oxygen of contacting surface, makes semicoke fully burn, makes up the low institute of its volatile matter The defect brought, but fluid bed is relatively costly, and need to be passed through substantial amounts of air to maintain coke powder Suspended state.

Burner, as a kind of burner, has fuel inlet, air intake and squit hole, plays point Join fuel and combustion air and spray the effect of after-combustion in a certain way.As disclosed in prior art For the burner of pulverized coal friring, see combination type powder disclosed in Chinese patent literature CN 204455025U Coal burner.Comprising: igniter burner and coal dust burner, described coal dust burner includes: independent of each other A plurality of fine coal pipeline, a plurality of gasifying agent pipeline independent of each other and cooling water jecket, described a plurality of powder Coal pipeline, described a plurality of gasifying agent pipeline and described cooling water jecket are alternately arranged.

In above-mentioned patent documentation, each fine coal passage and each gasifying agent passage are autonomous channel, Ke Yishi The most each fine coal passage independently mixes with each gasifying agent passage and controls, and can obtain more preferable gasification result； When wherein a fine coal pipeline or gasifying agent pipeline need not work when breaking down, will not even shadow Ring the effect of burner gasification, strengthen the stability of work.

But, according to the combination type fine coal burner described in the prior art, only arrange fine coal passage and Gasifying agent passage, if directly by coke breeze by fine coal passage, and from the air of gasifying agent passage or oxygen Burn after gas mixing.Cause coke breeze because coke breeze volatile matter is low (particularly volatile matter content is less than The coke breeze of 10%) it is not easy to be lighted, even if after lighting, because fixed carbon and volatile matter can not in coke breeze Cooperating, also cause burning insufficient, in final combustion process, lime-ash carbon residue is high.And it is above-mentioned existing Having fine coal and air or oxygen in the burner of technical literature is all to spray along burner central axial direction, and Along central axial direction and be not provided with corresponding jet power, comparatively speaking, each material mixed effect Bad, finally, cause combustion process Flame that instability occurs.In above-mentioned patent documentation, also set up A plurality of gasifying agent pipeline, adds burner cost and corresponding control system investment.

Utility model content

The purpose of this utility model is to solve in prior art because semicoke volatile matter is low, uses existing Burner, can not realize fixed carbon in combustion and volatile matter cooperates burning, causes it can not Fully burning, causes the technical problem that lime-ash carbon residue content is high, and then provides one and can fire in high volume Burn semicoke, and semicoke clean-burning associating burner can be made.

In order to solve above-mentioned technical problem, the technical solution of the utility model is as follows:

Associating burner provided by the utility model, including burner body, is arranged at described burner body The burner mouth of head, and it is arranged at the igniter of described burner body afterbody；

Form centered by described burner body central axis all from inside to outside in described burner body To the combustible gas passage, gasifying agent passage and the coke breeze passage that arrange, described combustible gas passage, described The port of export of gasifying agent passage and described coke breeze passage is all towards described burner mouth and the ejection equal court of material Collect to described burner mouth center；Make the combustible gas ejected from described combustible gas channel outlet Go to spray the coke breeze ejected from described coke breeze channel outlet and from described gasifying agent channel outlet The air or oxygen ejected, makes combustible gas, coke breeze and air or oxygen be sufficiently mixed.

The port of export sidewall of described coke breeze passage with the angle of described burner body central axis is 30°-60°。

In described associating burner, it is additionally provided with,

Some coke breeze pipelines, its circumference centered by described burner body central axis is uniformly arranged on institute State in coke breeze passage, and be spirally coiled in outside described combustible gas passage near one end of described burner mouth.

Further, in described associating burner, including four described coke breeze pipelines.

Further, the tangent line of the port of export of each described coke breeze pipeline all with the center of described burner body The angle of axis is α, and 30 °≤α≤60 °.

Further, the tangent line of the port of export of each described coke breeze pipeline is at the center with described burner body The angle between arbitrary neighborhood projection in the plane that axis is vertical is 90 °.

Described combustible gas channel outlet shrinks and forms the first contraction section；With described combustible gas passage The port of export of the one corresponding described gasifying agent passage of contraction section shrinks and forms the second contraction section；With described gas The port of export of the second corresponding described coke breeze passage of contraction section of agent passage shrinks and forms the 3rd contraction Section.

It is provided with cyclone in described second contraction section.

Described igniter is provided with ignitor, and described ignitor is arranged at described combustible gas passage Inside, and its one end is near described burner mouth.

In described associating burner, it is additionally provided with,

Cooling water jecket, it is respectively arranged between described combustible gas passage and described gasifying agent passage, Between described gasifying agent passage and described coke breeze passage, outside described coke breeze passage；

Described cooling water jecket outer wall is respectively arranged with cooling water inlet and coolant outlet；

Described gasifying agent passage and described coke breeze passage are annular channel.

Technical solutions of the utility model, have the advantage that

1) associating burner provided by the utility model, by arranging combustible gas passage, gasifying agent passage And coke breeze passage, it may be contained within inside described burner body, and with described burner body central shaft Centered by line, the most circumferentially disposed combustible gas passage, gasifying agent passage and coke breeze passage, described The port of export of combustible gas passage, gasifying agent passage and coke breeze passage all towards described burner mouth, make from The combustible gas that described combustible gas channel outlet ejects goes to spray and sprays from described coke breeze channel outlet The coke breeze gone out and the air or oxygen ejected from described gasifying agent channel outlet, make combustible gas, Coke breeze and air or oxygen are sufficiently mixed, and serve the effect of similar fluid bed, make coke breeze and air or Oxygen is fully contacted, and combustible gas serves the effect of volatile matter simultaneously, compensate for coke breeze volatile matter low Defect, and the shortcoming carried, also play the effect of combustion-supporting and steady combustion, makes fixed carbon in coke breeze fill Divided combustion, after tested, the lingemann blackness in flue gas is 1 grade, and burning is fully.

2) associating burner provided by the utility model, by shrinking formation the by combustible gas passage end One contraction section；Shrink with one end of the first contraction section corresponding gasifying agent passage of combustible gas passage and formed Second contraction section；Shrink with one end of the second contraction section corresponding coke breeze passage of gasifying agent passage and formed 3rd contraction section.Increase from each contraction section combustible gas, gasifying agent and coke breeze out to burner mouth The power of injection, beneficially combustible gas, gasifying agent and coke breeze is sufficiently mixed；Meanwhile, the length of flame is increased.

3) associating burner provided by the utility model, can realize the extensive utilization of coke breeze, will simultaneously Combustible gas is chosen as raw coke oven gas hydrogen manufacturing stripping gas, it is achieved that the comprehensive utilization of the energy.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model detailed description of the invention or technical side of the prior art Case, will make simply the accompanying drawing used required in detailed description of the invention or description of the prior art below Introduce, it should be apparent that, the accompanying drawing in describing below is embodiments more of the present utility model, right From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to These accompanying drawings obtain other accompanying drawing.

Fig. 1 is a kind of structural representation combining burner.

Description of reference numerals:

1-igniter；2-combustible gas passage；3-gasifying agent passage；4-cooling water jecket；5-coke breeze leads to Road；6-coke breeze pipeline；7-cyclone；8-ignitor；9-burner mouth；10-the first contraction section；11- Second contraction section；12-the 3rd contraction section.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, aobvious So, described embodiment is a part of embodiment of this utility model rather than whole embodiments. Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative work The every other embodiment obtained under premise, broadly falls into the scope of this utility model protection.

In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " etc. instruction orientation or Position relationship is based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and Simplify describe rather than instruction or the hint device of indication or element must have specific orientation, with Specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint phase To importance.

As long as additionally, technical characteristic involved in invention described below difference embodiment that The conflict of not constituting between this just can be combined with each other.

As described in Figure 1, associating burner provided by the utility model, including burner body, it is arranged at The burner mouth 9 of burner body head, and it is arranged at the igniter 1 of burner body afterbody；At burner originally Internal form combustible gas passage 2 the most circumferentially disposed centered by burner body central axis, Gasifying agent passage 3 and coke breeze passage 5, combustible gas passage 2, gasifying agent passage 3 and coke breeze passage The port of export of 5 all collects towards burner mouth 9 center towards burner mouth 9 and ejection material；Make from The combustible gas that combustible gas passage 2 port of export ejects goes injection to eject from coke breeze passage 5 port of export Coke breeze and the air or oxygen ejected from gasifying agent passage 3 port of export, make combustible gas, coke breeze and Air or oxygen is sufficiently mixed.

In above-mentioned associating burner, by arranging combustible gas passage 2, gasifying agent passage 3 and coke breeze passage 5, it may be contained within inside burner body, and circumference from inside to outside centered by burner body central axis Combustible gas passage 2, gasifying agent passage 3 and coke breeze passage 5, combustible gas passage 2, gasifying agent are set The port of export of passage 3 and coke breeze passage 5, all towards burner mouth 9, makes from combustible gas passage 2 port of export The combustible gas ejected goes to spray the coke breeze ejected from coke breeze passage 5 port of export and from gasifying agent passage 3 The air or oxygen ejected in the port of export, makes combustible gas, coke breeze and air or oxygen be sufficiently mixed, Serving the effect of similar fluid bed, make coke breeze and air or oxygen be fully contacted, combustible gas rises simultaneously Arrive the effect of volatile matter, compensate for the defect that coke breeze volatile matter is low, and the shortcoming carried, also rise Arrive the effect of combustion-supporting and steady combustion, made fixed carbon in coke breeze fully burn, after tested, the woods in flue gas The graceful blackness of lattice is 1 grade, and burning is fully.

On the basis of technique scheme, by by the port of export sidewall of coke breeze passage 5 with burner originally The angle of body central axis is arranged to 30 °-60 °, and beneficially coke breeze sprays at burner body central axis.

Further, being additionally provided with some coke breeze pipelines 6, it is week centered by burner body central axis In being uniformly arranged on coke breeze passage 5, and it is logical to be spirally coiled in combustible gas near one end of burner mouth 9 Outside road 2.

According to actual needs, in the present embodiment, four described coke breeze pipelines are set.

Further, the tangent line of the port of export of each described coke breeze pipeline all with the central axis of burner body Angle be α, and 30 °≤α≤60 °.

Further, the tangent line of the port of export of each coke breeze pipeline is at the central axis upright with burner body Plane on arbitrary neighborhood projection between angle be 90 °.

On the basis of technique scheme, combustible gas passage 2 port of export shrinks and forms the first contraction section 10；Shape is shunk with the port of export of the first contraction section 10 corresponding gasifying agent passage 3 of combustible gas passage 2 Become the second contraction section 11；With going out of the second contraction section 11 corresponding coke breeze passage 5 of gasifying agent passage 3 Mouth end shrinks and forms the 3rd contraction section 12.Increase from each contraction section out flammable by so arranging The power that gas, gasifying agent and coke breeze spray outside burner mouth, beneficially combustible gas, gasifying agent and coke breeze are abundant Mixing；Meanwhile, the length of flame is increased.

Further, it is provided with cyclone 7 in the second contraction section 11, increases gasifying agent burner body The power of central axial injection, is beneficial to be sufficiently mixed with other material.According to actual needs, cyclone 7 There is default swirl angle.

On the basis of technique scheme, igniter 1 is provided with ignitor 8, ignitor 8 It is arranged at combustible gas passage 2 internal, and its one end is near burner mouth 9.

According to actual needs, natural gas can be passed through in combustible gas passage 2 during igniting and light a fire, Then it is being passed through combustible gas.

On the basis of technique scheme, it is additionally provided with,

Cooling water jecket 4, it is respectively arranged between combustible gas passage 2 and gasifying agent passage 3, gasifies Between agent passage 3 and coke breeze passage 5, outside coke breeze passage 5；Cooling water jecket 4 outer wall sets respectively It is equipped with cooling water inlet and coolant outlet；Gasifying agent passage 3 and described coke breeze passage 5 are ring-type Passage.

According to actual needs, in the present embodiment, the combustible gas being passed through is dry distilling raw coke oven gas hydrogen manufacturing desorbing Gas, it is of course also possible to be passed through other combustible gas, such as dry distilling raw coke oven gas, hydrogen etc..

When using above-mentioned associating burner to carry out spray combustion, eject from combustible gas passage 2 port of export Combustible gas remove the coke breeze that ejects from coke breeze passage 5 port of export of injection and export from gasifying agent passage 3 The air or oxygen ejected in end, makes combustible gas, coke breeze and air or oxygen be sufficiently mixed, plays The effect of similar fluid bed, makes coke breeze and the air or oxygen be fully contacted, and combustible gas serves simultaneously The effect of volatile matter, compensate for the defect that coke breeze volatile matter is low, and the shortcoming carried, also plays The effect of combustion-supporting and steady combustion, makes fixed carbon in coke breeze fully burn, after tested, and the Ringelman in flue gas Blackness is 1 grade, and burning is fully.

Obviously, above-described embodiment is only for clearly demonstrating example, and not to embodiment party The restriction of formula.For those of ordinary skill in the field, the most also may be used To make other changes in different forms.Here without also all of embodiment being given With exhaustive.And the obvious change thus extended out or variation are created still in this utility model Protection domain among.

Claims (10)

1. an associating burner, including burner body, is arranged at the burner mouth of described burner body head , and be arranged at the igniter (1) of described burner body afterbody (9)；

It is characterized in that, in forming in described burner body and with described burner body central axis being Combustible gas passage (2), gasifying agent passage (3) and the coke breeze passage that the heart is the most circumferentially disposed (5), described combustible gas passage (2), described gasifying agent passage (3) and described coke breeze passage (5) The port of export all towards described burner mouth (9) and ejection material all towards described burner mouth (9) center Place collects；The combustible gas ejected from described combustible gas passage (2) port of export is made to go injection from described Coke breeze that coke breeze passage (5) port of export ejects and spraying from described gasifying agent passage (3) port of export The air or oxygen of injection, makes combustible gas, coke breeze and air or oxygen be sufficiently mixed.

Associating burner the most according to claim 1, it is characterised in that: described coke breeze passage (5) The angle of port of export sidewall and described burner body central axis be 30 °-60 °.

Associating burner the most according to claim 1 and 2, it is characterised in that: it is additionally provided with,

Some coke breeze pipelines (6), its circumference centered by described burner body central axis is uniformly arranged In described coke breeze passage (5), and it is spirally coiled in described near one end of described burner mouth (9) Combustible gas passage (2) is outward.

Associating burner the most according to claim 3, it is characterised in that: include four described coke breezes Pipeline.

Associating burner the most according to claim 4, it is characterised in that: each described coke breeze pipeline The tangent line of the port of export all angles with the central axis of described burner body are α, and 30 °≤α≤60 °.

6. according to the associating burner described in claim 4 or 5, it is characterised in that: each described coke breeze pipe The tangent line of the port of export in road with the arbitrary neighborhood in the plane of the central axis upright of described burner body Angle between projection is 90 °.

7. according to the associating burner described in claim 1,2,4 or 5, it is characterised in that: described can Blast tube (2) port of export shrinks and forms the first contraction section (10)；

Described gasifying agent passage (3) corresponding with first contraction section (10) of described combustible gas passage (2) The port of export shrink formed the second contraction section (11)；

Described coke breeze passage (5) corresponding with second contraction section (11) of described gasifying agent passage (3) The port of export shrink formed the 3rd contraction section (12).

Associating burner the most according to claim 7, it is characterised in that: described second contraction section (11) Inside it is provided with cyclone (7).

Associating burner the most according to claim 8, it is characterised in that: described igniter (1) Being provided with ignitor (8), described ignitor (8) is arranged in described combustible gas passage (2) Portion, and its one end is near described burner mouth (9).

Associating burner the most according to claim 8 or claim 9, it is characterised in that: it is additionally provided with,

Cooling water jecket (4), it is respectively arranged at described combustible gas passage (2) and described gasifying agent Between passage (3), between described gasifying agent passage (3) and described coke breeze passage (5), described powder Burnt passage (5) outside；

Described cooling water jecket (4) outer wall is respectively arranged with cooling water inlet and coolant outlet；

Described gasifying agent passage (3) and described coke breeze passage (5) are annular channel.