CN103528074A - Spray gun for incinerating waste tar of ammonium sulfate device - Google Patents

Abstract

The invention provides a spray gun for incinerating waste tar of an ammonium sulfate device, and particularly relates to a tar spray gun for conveying waste ammonium sulfate tar to be mixed with steam. The spray gun is characterized in that a premixing section (3) is additionally arranged between a first-stage atomization steam nozzle (1) and a first-stage accelerating section (4), the first-stage atomization steam nozzle (1) is axially communicated with the premixing section (3), a waste ammonium sulfate tar inlet (2) is obliquely communicated with the side wall of the premixing section (3), a diffusion mixing section (5) is additionally arranged between the first-stage accelerating section (4) and a second-stage accelerating section (6), the small-aperture end of the second-stage accelerating section (6) is connected with an atomization steam mixing steady flow section, a second-stage atomization steam outlet (7) is obliquely and additionally arranged on the side wall of a steady flow mixing section outer sleeve (8), and the other end of the atomization steam mixing steady flow section is connected with a gun head. The spray gun has the advantages of being simple in structure, good in atomization effect, high in combustion efficiency, stable in operation and the like.

Description

A kind of for burning the spray gun of the useless tar of ammonium sulfate device

Technical field

For burning a spray gun for the useless tar of ammonium sulfate device, belong to the useless tar spray gun field of acrylonitrile incinerator appts, be specifically related to a kind of tar spray gun for delivery of the useless tar of sulphur ammonium and steam.

Background technology

When propylene, ammonia oxidation are produced acrylonitrile, at quench tower epimere by-product, go out rare ammonium sulfate solution of concentration approximately 21%, in rare ammonium sulfate solution containing having anappointment 2% the polymer being formed by material polymerizations such as acrylonitrile, hydrogen cyanide, methacrylaldehyde.Acrylic nitrile waste water incinerator is the supporting environmental protection facility of acrylonitrile installation, incinerator produces a hot environment by combustion of natural gas, make the material generation oxidation reactions such as cyanide in sulphur ammonium tar, polymer, sulphur ammonium, be decomposed into the material nontoxic or low toxicity such as nitrogen oxide, water, carbon dioxide, sulfur dioxide emptying with the high point of flue gas.It is way more thoroughly that burning method is processed sulphur ammonium tar, has solved a difficult problem of processing sulphur ammonium tar, and adopts spray gun or injector sulfur waste ammonium tar to be introduced in incinerator, to burn be simple way.

When the common fuel oil spray gun of acrylic nitrile waste water incinerator original adoption sprays into, because sulfur waste ammonium tar viscosity is very large, easily condense, and common fuel oil spray gun only has one-level steam to accelerate, often stop up spray gun, because fed distance is far away, tar pump pressure is fallen greatly, often causes the problems such as tar atomization situation is poor, incomplete combustion, incinerator energy consumption height simultaneously.Application number is 201020158364.X, 201020158352.7 and 201020158334.9 Chinese patent, though being also divided into two-stage, middle delivery pipe body accelerates sections of atomization, but steam inlet is only provided with one, and steam enters the rear accelerating sections that directly enters, there is no the time of mixing, corresponding, mix incomplete steam and fuel oil, atomization is also incomplete, the same easily blockage phenomenon of spray gun not only, and cause that tar atomization situation is poor, incomplete combustion and incinerator energy consumption high.

Moreover, the Chinese patent " a kind of pair of medium atomization spray gun " that the Chinese patent that the Chinese patent that the Chinese patent that application number is CN02240083 " mixture spray gun device ", application number are CN03153671 " band improves the spray gun of spraying ", application number are CN03153672 " band improves pre-atomizing fluids to be mixed and broken spray gun " and application number are CN201020602873, in addition, the United States Patent (USP) that application number is US4202497 in addition " Spray gun(spray gun) ", application number is that above-mentioned these patents such as the United States Patent (USP) " the improved atomizing lance of Spray gun with improved atomization() " of US7762476 and the United States Patent (USP) that application number is US3992976 " Liquid propellant gun(liquid propellant rifle) " are all the injection apparatus of two kinds of liquid or gas-liquid mixed, for the operation that needs material evenly to mix or spray, though structure is separately different, but the principle adopting is identical, and all can not be applied in the burning situation of the high heat of high temperature.

Application number is the Chinese patent " a kind of burning spray gun " of CN200520034519, application number is the Chinese patent " a kind of natural gas spraying gun " of CN200820192435, application number is that the Chinese patent " multifunctional combined atomizing spray " of CN200910035433 and above-mentioned patents such as Chinese patent " the right gas spray gun of a kind of kiln " that application number is CN02276534.4 are all the injection apparatus of two kinds of gases or gas-liquid mixed, be generally used for even mixing, spray burning medium, though structure is separately different, but the principle adopting is identical, its structure viscosity that is equally all not suitable for burning is very large, the burnt oily matter easily condensing.

Summary of the invention

The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provide that a kind of difficult obstruction spray gun, tar atomization situation are good, burning is completely for burning the spray gun of the useless tar of ammonium sulfate device.

The technical solution adopted for the present invention to solve the technical problems is: this kind is for burning the spray gun of the useless tar of ammonium sulfate device, comprise the one-level mist generation nozzles that order connects, the import of sulfur waste ammonium tar, the rifle head of middle delivery pipe body and body front end, middle delivery pipe body comprises one-level accelerating sections and the secondary accelerating sections that undergauge arranges, and the atomizing steam mixing steady flow segment being formed by current stabilization mixing section outer tube and current stabilization mixing section inner tube suit, it is characterized in that: between one-level mist generation nozzles and one-level accelerating sections, set up premixed section, the axial UNICOM of one-level mist generation nozzles premixed section, UNICOM's premixed section sidewall that the import of sulfur waste ammonium tar is tilted, between one-level accelerating sections and secondary accelerating sections, set up diffusion mixing section, the small-caliber end of secondary accelerating sections connects atomizing steam mixing steady flow segment, and on current stabilization mixing section outer tube sidewall, set up the secondary atomizing steam outlet being obliquely installed, the atomizing steam mixing steady flow segment other end connects rifle head.The premixed section of setting up and diffusion mixing section further guarantee that sulfur waste ammonium tar mixes more fully with atomizing steam, the secondary atomizing steam outlet of in addition setting up on current stabilization mixing section outer tube sidewall, make not only can obtain secondary acceleration after gas-liquid mixed, and can make steam generation secondary-atomizing simultaneously, gas-liquid atomization is more even, is more conducive to sufficient burning.

The body that described premixed section is isometrical setting, internal diameter of tube body is 45 ~ 55mm, and body length is 60 ~ 70mm, and the axial angle forming between tube wall and the import of sulfur waste ammonium tar is 30 ° ~ 90 °, and the internal diameter of sulfur waste ammonium tar import is that 10 ~ 20mm arranges.After first mixing in premixed section inner chamber, through one-level accelerating sections, accelerate again, strengthen atomizing effect.

Described one-level accelerating sections body length is 45 ~ 50mm, and minimum diameter is 5 ~ 15mm; Secondary accelerating sections body length is 25 ~ 35mm, and minimum diameter is 5 ~ 15mm.

The body that the diffusion mixing section arranging between described one-level accelerating sections and secondary accelerating sections is isometrical setting, body length is 15 ~ 25mm, internal diameter is 15 ~ 25mm.

Described current stabilization mixing section outer tube length is 1200 ~ 1300mm, and internal diameter is 15 ~ 25mm, and in current stabilization mixing section, length of tube is 1200 ~ 1300mm, and internal diameter is 8 ~ 12mm; Between current stabilization mixing section outer tube and current stabilization mixing section inner tube, form the passage of secondary atomizing steam circulation, the small-caliber end of current stabilization mixing section inner tube one end UNICOM secondary accelerating sections, the other end connects rifle head.

Described rifle head comprises rifle head outer tube and rifle core, the long 120 ~ 130mm of rifle head outer tube bore axis, and maximum inner diameter 22 ~ 26mm, minimum diameter is 12 ~ 18mm, the body front end diameter that is periphery is the spray orifice of 0.5 ~ 1.5mm; It is inner that rifle core retainer plate is contained in rifle head outer tube, lumen shaft line length 70 ~ 80mm, maximum inner diameter 15 ~ 20mm, minimum diameter is 5 ~ 10mm, cavity dumping is all established the steam fumarole that diameter is 2 ~ 8mm in front end, rear end UNICOM current stabilization mixing section inner tube, the rifle head outer tube current stabilization mixing section outer tube that is fixedly connected.The more sufficient gas-liquid of mixing ratio is further accelerated after the contraction section of secondary accelerating sections and trunnion, the particle that atomization is more tiny, and these tiny particles directly arrive the trunnion of rifle core through current stabilization mixing section inner tubes, and again accelerate.

Described rifle head outer tube and rifle core leave space, and steam fumarole is by this space UNICOM secondary atomizing steam circulation passage.By this steam fumarole, the steam again being passed into by the outlet of secondary atomizing steam is introduced to rifle head outer tube leading section, the gas-liquid of current stabilization mixing section inner tube input is carried out to atomization again.

Described one-level mist generation nozzles and premixed section union end have the spray orifice that a diameter is 3 ~ 10mm, by this spray orifice UNICOM premixed section inner chamber.

Compared with prior art, the beneficial effect that the present invention has is:

1, the atomization of sulphur ammonium tar is effective, be conducive to abundant burning: in middle transfer pipeline, set up premixed section and diffusion mixing section, sulfur waste ammonium tar is mixed in spray gun body fully with atomizing steam, the sulphur ammonium tar atomization of ejection is effective, be more conducive to abundant burning, compare with former ethylene bottom oil spray gun, can save natural gas 20% left and right, and can synchronously burn the sulfur waste ammonium tar 0.5t/h that ammonium sulfate device produces, during fuel gas (natural gas) by 400 Nm³/ h is reduced to 320 Nm³/ h, has reduced 80Nm³/ h, energy-saving effect is remarkable;

2, simple in structure, stable operation: middle transfer pipeline adopts the different body of multistage internal diameter to be fixedly connected and forms, guaranteeing on sulfur waste ammonium tar and the well-mixed basis of atomizing steam, make gas-liquid that twice acceleration can occur, twice atomization, in drop after there is atomization for the second time, the miniature spray orifice ejection being periphery through shower nozzle end, after the sulfur waste ammonium tar ejection of uniform atomizing, in high-temperature burner hearth, be fully burned, acrylonitrile incinerator combustion position promotes greatly, furnace temperature raises fast, and stable equipment operation, safety simple to operate, main is a processing difficult problem that has solved sulphur ammonium tar, economic environmental protection, benefit is good.

Accompanying drawing explanation

Fig. 1 is structural front view cross-sectional schematic of the present invention.

Fig. 2 is rifle head outer tube front view cross-sectional schematic of the present invention.

Fig. 3 is the front view cross-sectional schematic of rifle core of the present invention.

Wherein: 1, one-levelmist generation nozzles 2, sulfur waste ammonium tarimport 3, premixedsection 4, one-level accelerating sections 5,diffusion mixing section 6,secondary accelerating sections 7, secondary atomizingsteam outlet 8, current stabilization mixing sectionouter tube 9, current stabilization mixing sectioninner tube 10,rifle core 11, rifle headouter tube 12, steam fumarole.

Fig. 1 ~ 3rd, most preferred embodiment of the present invention, below in conjunction with accompanying drawing 1 ~ 3, the present invention will be further described.

The specific embodiment

With reference to accompanying drawing 1 ~ 3: this kind is for burning the spray gun of the useless tar of ammonium sulfate device, the rifle head that comprises one-level mist generation nozzles 1, sulfur waste ammonium tarimport 2, middle delivery pipe body and body front end that order connects, rifle head is front end, and one-level mist generation nozzles 1 is rear end.Middle delivery pipe body is fixedly formed by the waney pipe welding of multistage, form a plurality of reaction section, from one-level mist generation nozzles 1 one end, start order and comprise thediffusion mixing section 5 ofpremixed section 3, the one-level accelerating sections 4 that undergauge arranges, isometrical setting, secondary acceleratingsections 6 and the secondary atomizing steam mixing steady flow segment that undergauge arranges, each section of parts all adopt 0Cr18Ni9 material to make.

One-level mist generation nozzles 1 axial UNICOM premixedsection 3, one-level mist generation nozzles 1 has with premixedsection 3 union ends the spray orifice that a diameter is 3 ~ 10mm, and by the inner chamber of this spray orifice UNICOM premixed section 3.The internal diameter of sulfur waste ammonium tarimport 2 is that 10 ~ 20mm arranges, that tilts is arranged onpremixed section 3 sidewalls, and UNICOM's premixedsection 3 inner chambers, the body that premixedsection 3 is isometrical setting, internal diameter of tube body is 45 ~ 55mm, body length is 60 ~ 70mm, and the axial angle forming between tube wall and sulfur wasteammonium tar import 2 is 30 ° ~ 90 °.

One-level accelerating sections 4 body length are 45 ~ 50mm, and minimum diameter is 5 ~ 15mm; Secondary acceleratingsections 6 body length are 25 ~ 35mm, and minimum diameter is 5 ~ 15mm.Between one-level accelerating sections 4 and secondary acceleratingsections 6, have additional thediffusion mixing section 5 of isometrical setting, body length is 15 ~ 25mm, and internal diameter is 15 ~ 25mm.The small-caliber end of secondary acceleratingsections 6 inner chamber front ends connects the current stabilization mixing sectioninner tube 9 of atomizing steam mixing steady flow segment, and outer wall front end is welded and fixed current stabilization mixing sectionouter tube 8.

Secondary atomizing steam mixing steady flow segment, the atomizing steam mixing steady flow segment being formed by current stabilization mixing sectionouter tube 8 and current stabilization mixing sectioninner tube 9 suits, current stabilization mixing sectionouter tube 8 length are 1200 ~ 1300mm, internal diameter is 15 ~ 25mm, current stabilization mixing sectioninner tube 9 length are 1200 ~ 1300mm, and internal diameter is 8 ~ 12mm; Between current stabilization mixing sectionouter tube 8 and current stabilization mixing sectioninner tube 9, form the passage of secondary atomizing steam circulation, the small-caliber end of current stabilization mixing sectioninner tube 9 one end UNICOMsecondary accelerating sections 6, the other end connects therifle core 10 of rifle head, the secondary atomizingsteam outlet 7 being obliquely installed is installed on current stabilization mixing sectionouter tube 8 sidewalls, it is 15 ~ 25mm that secondary atomizingsteam exports 7 diameters, and the angle forming in the axial direction with current stabilization mixing sectionouter tube 8 outer walls is 30 ° ~ 90 °.

Rifle head comprises rifle headouter tube 11 andrifle core 10, rifle headouter tube 11 lumen shaft line length 120 ~ 130mm, and maximum inner diameter 22 ~ 26mm, minimum diameter is 12 ~ 18mm, the body front end diameter that is periphery is the spray orifice of 0.5 ~ 1.5mm; Riflecore 10 is sleeved on rifle headouter tube 11 inside, lumen shaft line length 70 ~ 80mm, maximum inner diameter 15 ~ 20mm, minimum diameter is 5 ~ 10mm, in front end, cavity dumping is all established thesteam fumarole 12 that diameter is 2 ~ 8mm, rear end UNICOM current stabilization mixing sectioninner tube 9, rifle headouter tube 11 connects current stabilization mixing sectionouter tube 8 by back tightening nut.And between rifle headouter tube 11 andrifle core 10, leave space,steam fumarole 12 is by the secondary atomizing steam circulation passage that between this space UNICOM current stabilization mixing sectionouter tube 8 and current stabilization mixing sectioninner tube 9, suit forms.

The course of work is as follows: operation principle of the present invention is: first, premixed steam enters in the inner chamber ofpremixed section 3 along axis after accelerating by one-level mist generation nozzles 1, utilizes steam heat pump principle sulfur waste ammonium tar through sulfur waste ammonium tarimport 2, to introducepremixed section 3 and pre-steam premixed from the side.Premixed steam and sulfur waste ammonium tar enter one-level accelerating sections 4 inner chambers in the interior mixed gas-liquid ofpremixed section 3 frompremixed section 3 Inner Front Ends, after the contraction section of one-level accelerating sections 4 and trunnion accelerate, enter indiffusion mixing section 5 and spread mixing, the more sufficient gas-liquid of mixing ratio is further accelerated through contraction section and the trunnion of secondary acceleratingsections 6, be atomized into tiny particle, these tiny particles directly arrive the trunnion ofrifle core 10 through current stabilization mixing sectioninner tube 9, and again accelerate, then enter the inner chamber of the rifle headouter tube 11 of rifle head.

By the secondary atomizingsteam outlet 7 on current stabilization mixing sectionouter tube 8 one sidewalls, again introduce steam, and thesteam fumarole 12 of the setting byrifle core 10 front ends sprays into front end shower nozzle, gas-liquid to 9 inputs of current stabilization mixing section inner tube is carried out atomization again, power is provided simultaneously and produces larger speed difference, under the Pneumatic pressure effect producing at gas-liquid speed difference, the miniature spray orifice ejection that atomization for the second time occurs drop is 0.5 ~ 1.5mm through rifle headouter tube 11 diameter that portion is periphery foremost afterwards, after the sulfur waste ammonium tar ejection of uniform atomizing, in high-temperature burner hearth, be fully burned.

The above, be only preferred embodiment of the present invention, is not the present invention to be done to the restriction of other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.

Claims (8)

1. one kind for burning the spray gun of the useless tar of ammonium sulfate device, comprise the one-level mist generation nozzles (1) that order connects, sulfur waste ammonium tar import (2), the rifle head of middle delivery pipe body and body front end, middle delivery pipe body comprises one-level accelerating sections (4) and the secondary accelerating sections (6) that undergauge arranges, and the atomizing steam mixing steady flow segment being formed by current stabilization mixing section outer tube (8) and current stabilization mixing section inner tube (9) suit, it is characterized in that: between one-level mist generation nozzles (1) and one-level accelerating sections (4), set up premixed section (3), one-level mist generation nozzles (1) is UNICOM's premixed section (3) axially, UNICOM's premixed section (3) sidewall that sulfur waste ammonium tar import (2) is tilted, between one-level accelerating sections (4) and secondary accelerating sections (6), set up diffusion mixing section (5), the small-caliber end of secondary accelerating sections (6) connects atomizing steam mixing steady flow segment, and on current stabilization mixing section outer tube (8) sidewall, set up the secondary atomizing steam outlet (7) being obliquely installed, the atomizing steam mixing steady flow segment other end connects rifle head.

2. according to claim 1 a kind of for burning the spray gun of the useless tar of ammonium sulfate device, it is characterized in that: described premixed section (3) is the body of isometrical setting, internal diameter of tube body is 45 ~ 55mm, body length is 60 ~ 70mm, the axial angle forming between tube wall and sulfur waste ammonium tar import (2) is 30 ° ~ 90 °, and the internal diameter of sulfur waste ammonium tar import (2) is that 10 ~ 20mm arranges.

3. according to claim 1 a kind of for burning the spray gun of the useless tar of ammonium sulfate device, it is characterized in that: described one-level accelerating sections (4) body length is 45 ~ 50mm, and minimum diameter is 5 ~ 15mm; Secondary accelerating sections (6) body length is 25 ~ 35mm, and minimum diameter is 5 ~ 15mm.

4. a kind of for burning the spray gun of the useless tar of ammonium sulfate device according to described in claim 1 or 3, it is characterized in that: the diffusion mixing section (5) arranging between described one-level accelerating sections (4) and secondary accelerating sections (6) is the body of isometrical setting, body length is 15 ~ 25mm, and internal diameter is 15 ~ 25mm.

5. according to claim 1 a kind of for burning the spray gun of the useless tar of ammonium sulfate device, it is characterized in that: described current stabilization mixing section outer tube (8) length is 1200 ~ 1300mm, internal diameter is 15 ~ 25mm, and current stabilization mixing section inner tube (9) length is 1200 ~ 1300mm, and internal diameter is 8 ~ 12mm; Between current stabilization mixing section outer tube (8) and current stabilization mixing section inner tube (9), form the passage of secondary atomizing steam circulation, the small-caliber end of current stabilization mixing section inner tube (9) one end UNICOM secondary accelerating sections (6), the other end connects rifle head.

6. a kind of for burning the spray gun of the useless tar of ammonium sulfate device according to described in claim 1 or 5 any one, it is characterized in that: described rifle head comprises rifle head outer tube (11) and rifle core (10), rifle head outer tube (11) lumen shaft line length 120 ~ 130mm, maximum inner diameter 22 ~ 26mm, minimum diameter is 12 ~ 18mm, and the body front end diameter that is periphery is the spray orifice of 0.5 ~ 1.5mm; Rifle core (10) is sleeved on rifle head outer tube (11) inside, lumen shaft line length 70 ~ 80mm, maximum inner diameter 15 ~ 20mm, minimum diameter is 5 ~ 10mm, in front end, cavity dumping is all established the steam fumarole that diameter is 2 ~ 8mm (12), rear end UNICOM current stabilization mixing section inner tube (9), rifle head outer tube (11) the current stabilization mixing section outer tube (8) that is fixedly connected.

7. according to claim 6 a kind ofly it is characterized in that: described rifle head outer tube (11) and rifle core (10) leave space for burning the spray gun of the useless tar of ammonium sulfate device, steam fumarole (12) is passed through this space UNICOM secondary atomizing steam circulation passage.

8. according to claim 1 a kind of for burning the spray gun of the useless tar of ammonium sulfate device, it is characterized in that: described one-level mist generation nozzles (1) has with premixed section (3) union end the spray orifice that a diameter is 3 ~ 10mm, by this spray orifice UNICOM premixed section (3) inner chamber.

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