CN204608164U - A kind of stoving oven - Google Patents
A kind of stoving oven Download PDFInfo
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- CN204608164U CN204608164U CN201520039952.4U CN201520039952U CN204608164U CN 204608164 U CN204608164 U CN 204608164U CN 201520039952 U CN201520039952 U CN 201520039952U CN 204608164 U CN204608164 U CN 204608164U
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Abstract
The utility model proposes a kind of stoving oven, comprise housing and whipping appts, housing is divided into top conical section, middle part cylindrical section, lower cone segments and bottom cylindrical section from top to bottom successively, the lower sides of middle part cylindrical section is provided with main burner, main burner is connected with middle part cylindrical section, and the sidewall of the bottom of bottom cylindrical section is provided with slag notch, is provided with base plate bottom it, in the middle part of it, sidewall is provided with auxiliary burning nozzle, and auxiliary burning nozzle is connected with bottom cylindrical section; Whipping appts comprises raker stirrer and drive unit, and raker stirrer is installed in the center cavity of housing, and the bottom of the rotary middle spindle of raker stirrer is stretched out housing bottom and is connected with drive unit, and rotary middle spindle is connected with base plate by bearing.The utility model structure is simple, reliable, easy to maintenance.
Description
Technical field
The utility model belongs to the technical field of energy supply for metallurgy environmental protection, particularly relates to a kind of stoving oven.
Background technology
Stainless steel enterprises produces a large amount of mixing spent acid in Rolling production process, and major part is taked to reclaim afterwards and lime carries out neutralizing treatment, not only can consume large quantities of lime in the process, and can produce the transport of a large amount of mud and secondary landfill cost.So not only consume a large amount of manpower and materials, also do not meet the policy requirements realizing recycling economy that country proposes simultaneously.As recycled by mixing spent acid, will fundamentally eliminate the impact of spent acid process on environment, and the spent acid reclaimed and metal oxide can also continue as the service of production.
The mixing spent acid produced after solution stainless steel nitration mixture cleanup acid treatment is difficult to the difficult problem recycled by stainless steel spray roasting nitration mixture regeneration techniques, the core process equipment of this technology is stoving oven, the spent acid of discharging from stainless steel pickling line is first concentrated by Venturi scrubber after pressurization, then spray into from stoving oven top, in the evaporating area on stoving oven top, nitric acid in spent acid, hydrofluoric acid and moisture are evaporated, metallic salt enters the resolver of stoving oven bottom, be broken down into acid gas (mainly HF, HN0
3and NOx) and metal oxide, acid gas rises to top, and the steam produced with evaporating area is discharged in the lump; The metal oxide produced bottom stoving oven is delivered to stoving oven slag notch by raker stirrer and discharges, recycling after pelletizing.
Summary of the invention
The utility model is intended to invention one and meets stainless steel spray roasting nitration mixture regeneration techniques processing requirement, reliable, stoving oven easy to maintenance.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of stoving oven, described housing is vertical barrel body structure, described whipping appts comprises raker stirrer and drive unit, described raker stirrer is installed in the cavity of the bottom of described housing, the bottom of raker stirrer is stretched out housing bottom and is connected with described drive unit, it is characterized in that, described housing is divided into top conical section, middle part cylindrical section, lower cone segments and bottom cylindrical section from top to bottom successively; The top center of described top conical section is provided with inlet section; The lower sides of described middle part cylindrical section is provided with main burner, and described main burner is connected with middle part cylindrical section; The sidewall of the bottom of described bottom cylindrical section is provided with slag notch, the bottom of lower cone segments is provided with the first base plate, described first base plate has centre hole, uniform several crushing shell on the internal surface of described first base plate, the bottom of described bottom cylindrical section is provided with the second base plate, described second base plate has centre hole, the bottom that described housing is stretched out in the bottom of described raker stirrer is connected with described drive unit, the middle part sidewall of bottom cylindrical section is provided with auxiliary burning nozzle, and described auxiliary burning nozzle is connected with bottom cylindrical section.
By such scheme, described inlet section is cylindrical tube structure, and the open top of inlet section is connected with the outlet of sour rifle, and the sidewall of inlet section is respectively equipped with the first manhole and vapour-discharge tube, and the outlet of described vapour-discharge tube is connected with the gas pipeline in workshop.
By such scheme, described raker stirrer comprises rotary middle spindle and two rake arms, the top of described rotary middle spindle is connected with top cover, the bottom of rotary middle spindle is connected with described second base plate by bearing, the bottom of rotary middle spindle is connected with described drive unit through the centre hole of described second base plate, described two rake arms are between the upper and lower every installing the top in described rotary middle spindle, two rake arms are arranged in center serrated vertical at grade, two rake arms lay respectively in the cavity of described lower cone segments and bottom cylindrical section, uniform several lower scraping plate on the bottom surface of described rake arms, the both sides of rake arms are equipped with side scraper plate.
By such scheme, the top of described rotary middle spindle is interval with two rake arms seats up and down, the center of described rake arms seat is connected with rotary middle spindle, the end face zygomorphy of rake arms seat is provided with two mounting grooves, described rake arms is made up of two identical little rake arms, one end of described little rake arms is installed in described mounting groove, and the other end of little rake arms stretches out described mounting groove vertically and stretches out.
By such scheme, described rake arms is rectangle hollow pipe, and described mounting groove is rectangular tank, and described lower scraping plate is rectangular flat, described side scraper plate is symmetrically arranged two pieces of bending plates up and down, and one end of described two pieces of bending plates is connected with two planes up and down of described rake arms termination respectively.
By such scheme, described drive unit is reducing motor, the bottom of described rotary middle spindle is connected by the output shaft of shaft coupling with described reducing motor, described shaft coupling outer cover is provided with cover body, the bottom outer circumference surface of described rotary middle spindle is provided with tablet, described cover body inwall is provided with proximity switch, the setting corresponding with described tablet of described proximity switch.
By such scheme, the center of the outside surface of described second base plate is connected with the top of cylindrical sleeve cartridge type bearing support, the bottom of described cylindrical sleeve cartridge type bearing support is connected with the top of described cover body, and the two ends up and down of cylindrical sleeve cartridge type bearing support are connected with described rotary middle spindle with rolling bearing respectively by sliding shaft sleeve.
By such scheme, described main burner is three, and three main burners are uniformly distributed along the circumference of described middle part cylindrical section.
By such scheme, the sidewall of the junction of described top conical section and middle part cylindrical section is provided with the second manhole, the lower sides of described middle part cylindrical section is provided with the 3rd manhole, and the sidewall of described lower cone segments is provided with the 4th manhole, and the sidewall of bottom cylindrical section is provided with the 5th manhole.
By such scheme, the bottom of described middle part cylindrical section is provided with base, and described base and basic platform are connected, and the top of middle part cylindrical section is provided with T-shaped supporting leg.
The beneficial effects of the utility model are: 1, provide a kind of stoving oven, and housing segments is arranged, and meets the space in stove required for chemical reaction and temperature requirement, makes whole technical process more abundant, complete; 2, the equipment of each level locations can be overhauled by arranging multiple manhole, observing the working condition of each flow process; 3, the structure of whole whipping appts makes the process of outputting material more smooth and easy, and efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model embodiment.
Fig. 2 is the axonometric drawing of the utility model embodiment.
Fig. 3 is the vertical view of the utility model embodiment.
Fig. 4 is the axonometric drawing of the whipping appts of the utility model embodiment.
Fig. 5 is the sectional view of the cylindrical sleeve cartridge type bearing support of the utility model embodiment.
Wherein: 1. top conical section, 2. cylindrical section in the middle part of, 3. lower cone segments, 4. cylindrical section bottom, 5. inlet section, 6. the first manhole, 7. vapour-discharge tube, 8. main burner, 9. slag notch, 10. the first base plate, 11. auxiliary burning nozzles, 12. rotary middle spindles, 13. rake arms, 14. top covers, 15. lower scraping plates, 16. side scraper plates, 17. rake arms seats, 18. little rake arms, 19. rectangular tanks, 20. reducing motors, 21. shaft couplings, 22. cover bodies, 23. tablets, 24. proximity switches, 25. sliding shaft sleeves, 26. rolling bearings, 27. second manholes, 28. the 3rd manholes, 29. the 4th manholes, 30. bases, 31.T type supporting leg, 32. crushing shells, 33. the 5th manholes, 34. cylindrical sleeve cartridge type bearing supports, 35. second base plates.
Embodiment
For understanding the utility model better, below in conjunction with drawings and Examples, the utility model will be further described.
As Figure 1-3, a kind of stoving oven, comprises housing and whipping appts, and housing is vertical barrel body structure, and whipping appts comprises raker stirrer and drive unit, and raker stirrer is installed in the center cavity of the bottom of housing, and its underpart is stretched out housing bottom and is connected with drive unit; Housing is divided into top conical section 1, middle part cylindrical section 2, lower cone segments 3 and bottom cylindrical section 4 from top to bottom successively, and each section rationally splits welding according to material size, mutually staggers between weld seam and weld seam; The top center of top conical section 1 is provided with inlet section 5, inlet section 5 is cylindrical tube structure, its open top is connected with the outlet of sour rifle, when stoving oven normally works, acid rifle inserts from open top, and sprayed into by concentrating waste acid in stoving oven, its sidewall is respectively equipped with the first manhole 6 and vapour-discharge tube 7, first manhole 6 is for overhauling the sour rifle stretched in stoving oven, and the outlet of vapour-discharge tube 7 is connected with the gas pipeline in workshop; The lower sides of middle part cylindrical section 2 is provided with main burner 8, and main burner 8 is connected with middle part cylindrical section, and main burner is three, and three main burners are uniformly distributed along the circumference of middle part cylindrical section; The bottom of lower cone segments 3 is provided with on the first base plate 10, first base plate 10 and has centre hole, uniform several crushing shell 32 on its internal surface; The sidewall of bottom of bottom cylindrical section 4 is provided with slag notch 9, and the bottom of bottom cylindrical section is provided with on the second base plate 35, second base plate 35 and has centre hole, and the centre hole that the second base plate is stretched out in the bottom of raker stirrer is connected with drive unit; Under the effect of main burner 8, nitric acid in spent acid in stoving oven, hydrofluoric acid and moisture are evaporated, metallic salt enters stoving oven bottom, the middle part sidewall of bottom cylindrical section is provided with auxiliary burning nozzle 11, auxiliary burning nozzle 11 is connected under the effect of auxiliary burning nozzle with bottom cylindrical section, be broken down into acid gas (mainly HF, HN0
3and NOx) and metal oxide, acid gas rises to top, the steam produced with stoving oven top is discharged from the outlet of vapour-discharge tube 7 in the lump, and the metal oxide fragmentation of bulk, in the rotary course of raker stirrer, is beneficial to be delivered to slag notch 9 downwards and discharges by crushing shell 32.
The bottom of middle part cylindrical section 2 is provided with base 30, base 30 and the basic platform be fixed on bottom surface are connected, make the solid and reliable of stoving oven, the top of middle part cylindrical section is provided with T-shaped supporting leg 31, and T-shaped supporting leg 31 is for installing the sour rifle inspection platform on top, and stoving oven is when normally working, because high temperature action body of heater can produce thermal expansion, by T-shaped supporting leg, sour rifle inspection platform is connected with stoving oven body of heater, guarantees that sour rifle is installed reliable.
Top conical section 1 is provided with the second manhole 27 with the sidewall of the junction of middle part cylindrical section 2, the lower sides of middle part cylindrical section is provided with the 3rd manhole 28, the sidewall of lower cone segments 3 is provided with the 4th manhole 29, and the sidewall of bottom cylindrical section 4 is provided with the 5th manhole 33; Second manhole 27 is provided with glass sight glass, and it both can use as manhole during the sour rifle equipment of maintenance, also can observe the working condition of sour rifle in stove when stoving oven normally works; 3rd manhole 28 is for overhauling the relevant device of this level locations; 4th manhole 29 is for overhauling whipping appts; 5th manhole 33 is for overhauling the equipment of this position height; The material of whole stoving oven adopts special stainless steel to make, and this material is high temperature resistant, hydrofluoric acid resistant and nitric acid corrosion.
As illustrated in figures 4-5, raker stirrer comprises rotary middle spindle 12 and two rake arms 13, the top of rotary middle spindle 12 is connected with top cover 14, the bottom of rotary middle spindle is connected with the second base plate 35 by bearing, the bottom of rotary middle spindle is connected with drive unit through the centre hole of the second base plate, two rake arms 13 are between the upper and lower every installing the top in rotary middle spindle, two rake arms are arranged in center serrated vertical at grade, two rake arms lay respectively in the cavity of lower cone segments 3 and bottom cylindrical section 4, uniform several lower scraping plate 15 on the bottom surface of rake arms, the both sides of rake arms are equipped with side scraper plate 16.
The top of rotary middle spindle 12 is interval with two rake arms seats 17 up and down, the center of rake arms seat 17 is connected with rotary middle spindle, the end face zygomorphy of rake arms seat is provided with two mounting grooves, rake arms is made up of two identical little rake arms 18, one end of little rake arms 18 is installed in mounting groove, and the other end of little rake arms stretches out mounting groove vertically and stretches out; Rake arms is rectangle hollow pipe, and mounting groove is rectangular tank 19, and lower scraping plate 15 is rectangular flat, and side scraper plate 16 is symmetrically arranged two pieces of bending plates up and down, and one end of two pieces of bending plates is connected with two planes up and down of rake arms termination respectively.
Drive unit is reducing motor 20, the bottom of rotary middle spindle 12 is connected with the output shaft of reducing motor 20 by shaft coupling 21, shaft coupling 21 outer cover is provided with cover body 22, the bottom outer circumference surface of rotary middle spindle is provided with tablet 23, the inwall of cover body 22 is provided with proximity switch 24, proximity switch 24 setting corresponding with tablet 23, for detecting raker stirrer, whether normal rotation is run.
The center of the outside surface of the second base plate 35 is connected with the top of cylindrical sleeve cartridge type bearing support 34, the bottom of cylindrical sleeve cartridge type bearing support 34 is connected with the top of cover body 22, and the two ends up and down of cylindrical sleeve cartridge type bearing support are connected with rotary middle spindle 12 with rolling bearing 26 respectively by sliding shaft sleeve 25.
The metal oxide produced when stoving oven normally works falls gradually due to action of gravity, be deposited in lower cone segments 3 and bottom cylindrical section 4, upper and lower two rake arms lay respectively in lower cone segments 3 and bottom cylindrical section 4, reducing motor 20 drives rotary middle spindle 12 to rotate, thus drive two rake arms to rotate, the metal oxide be attached in stoving oven lower cone segments scrapes on the first base plate 10 by the side scraper plate 16 of the rake arms both sides in rotary course middle and lower part conical section 3, metal oxide on first base plate is scraped in the bottom cylindrical section 4 of stoving oven by the lower scraping plate 15 of rake arms, metal oxide on second base plate 35 is scraped to slag notch 9 and from then on discharges by the lower scraping plate of the bottom of the rake arms in the cylindrical section 4 of bottom.
Need repairing raker stirrer time, first take off top cover 14, then dismantle rake arms, then rake arms seat 17 is separated with rotary middle spindle 12, finally unload lower coupler 21 and reducing motor 20, remaining parts are extracted out from the bottom of stoving oven, completes integral replacing.
Claims (10)
1. a stoving oven, comprise housing and whipping appts, described housing is vertical barrel body structure, described whipping appts comprises raker stirrer and drive unit, described raker stirrer is installed in the cavity of the bottom of described housing, the bottom of raker stirrer is stretched out housing bottom and is connected with described drive unit, it is characterized in that, described housing is divided into top conical section, middle part cylindrical section, lower cone segments and bottom cylindrical section from top to bottom successively; The top center of described top conical section is provided with inlet section; The lower sides of described middle part cylindrical section is provided with main burner, and described main burner is connected with middle part cylindrical section; The sidewall of the bottom of described bottom cylindrical section is provided with slag notch, the bottom of lower cone segments is provided with the first base plate, described first base plate has centre hole, uniform several crushing shell on the internal surface of described first base plate, the bottom of described bottom cylindrical section is provided with the second base plate, described second base plate has centre hole, the bottom that described housing is stretched out in the bottom of described raker stirrer is connected with described drive unit, the middle part sidewall of bottom cylindrical section is provided with auxiliary burning nozzle, and described auxiliary burning nozzle is connected with bottom cylindrical section.
2. a kind of stoving oven according to claim 1, it is characterized in that, described inlet section is cylindrical tube structure, the open top of inlet section is connected with the outlet of sour rifle, the sidewall of inlet section is respectively equipped with the first manhole and vapour-discharge tube, and the outlet of described vapour-discharge tube is connected with the gas pipeline in workshop.
3. a kind of stoving oven according to claim 1 and 2, it is characterized in that, described raker stirrer comprises rotary middle spindle and two rake arms, the top of described rotary middle spindle is connected with top cover, the bottom of rotary middle spindle is connected with described second base plate by bearing, the bottom of rotary middle spindle is connected with described drive unit through the centre hole of described second base plate, described two rake arms are between the upper and lower every installing the top in described rotary middle spindle, two rake arms are arranged in center serrated vertical at grade, two rake arms lay respectively in the cavity of described lower cone segments and bottom cylindrical section, uniform several lower scraping plate on the bottom surface of described rake arms, the both sides of rake arms are equipped with side scraper plate.
4. a kind of stoving oven according to claim 3, it is characterized in that, the top of described rotary middle spindle is interval with two rake arms seats up and down, the center of described rake arms seat is connected with rotary middle spindle, the end face zygomorphy of rake arms seat is provided with two mounting grooves, described rake arms is made up of two identical little rake arms, and one end of described little rake arms is installed in described mounting groove, and the other end of little rake arms stretches out described mounting groove vertically and stretches out.
5. a kind of stoving oven according to claim 4, it is characterized in that, described rake arms is rectangle hollow pipe, described mounting groove is rectangular tank, described lower scraping plate is rectangular flat, described side scraper plate is symmetrically arranged two pieces of bending plates up and down, and one end of described two pieces of bending plates is connected with two planes up and down of described rake arms termination respectively.
6. a kind of stoving oven according to claim 3, it is characterized in that: described drive unit is reducing motor, the bottom of described rotary middle spindle is connected by the output shaft of shaft coupling with described reducing motor, described shaft coupling outer cover is provided with cover body, the bottom outer circumference surface of described rotary middle spindle is provided with tablet, described cover body inwall is provided with proximity switch, the setting corresponding with described tablet of described proximity switch.
7. a kind of stoving oven according to claim 6, it is characterized in that: the center of the outside surface of described second base plate is connected with the top of cylindrical sleeve cartridge type bearing support, the bottom of described cylindrical sleeve cartridge type bearing support is connected with the top of described cover body, and the two ends up and down of cylindrical sleeve cartridge type bearing support are connected with described rotary middle spindle with rolling bearing respectively by sliding shaft sleeve.
8. a kind of stoving oven according to claim 1, is characterized in that: described main burner is three, and three main burners are uniformly distributed along the circumference of described middle part cylindrical section.
9. a kind of stoving oven according to claim 2, it is characterized in that: the sidewall of the junction of described top conical section and middle part cylindrical section is provided with the second manhole, the lower sides of described middle part cylindrical section is provided with the 3rd manhole, the sidewall of described lower cone segments is provided with the 4th manhole, and the sidewall of bottom cylindrical section is provided with the 5th manhole.
10. a kind of stoving oven according to claim 1, is characterized in that: the bottom of described middle part cylindrical section is provided with base, and described base and basic platform are connected, and the top of middle part cylindrical section is provided with T-shaped supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039952.4U CN204608164U (en) | 2015-01-21 | 2015-01-21 | A kind of stoving oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039952.4U CN204608164U (en) | 2015-01-21 | 2015-01-21 | A kind of stoving oven |
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| CN204608164U true CN204608164U (en) | 2015-09-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562061A (en) * | 2015-01-21 | 2015-04-29 | 中冶南方工程技术有限公司 | Roasting furnace |
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2015
- 2015-01-21 CN CN201520039952.4U patent/CN204608164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562061A (en) * | 2015-01-21 | 2015-04-29 | 中冶南方工程技术有限公司 | Roasting furnace |
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