CN205119659U - Take boiling formula hot -blast furnace drying system of boosting mechanism - Google Patents
Take boiling formula hot -blast furnace drying system of boosting mechanism Download PDFInfo
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- CN205119659U CN205119659U CN201520811131.8U CN201520811131U CN205119659U CN 205119659 U CN205119659 U CN 205119659U CN 201520811131 U CN201520811131 U CN 201520811131U CN 205119659 U CN205119659 U CN 205119659U
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- fluidized bed
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Abstract
The utility model discloses a take boiling formula hot -blast furnace drying system of boosting mechanism, including between voltage -sharing plenum, straight barrel fluidized bed furnace, thick wall then fire, the dust fall adjust the temperature between, hot -blast boosting mechanism and desiccator, the voltage -sharing plenum links to each other with straight barrel fluidized bed furnace bottom, and the export of straight barrel fluidized bed furnace upper portion links to each other between then firing through a tobacco pipe A and thick wall, the lower part export linked to each other between adjusting the temperature through a tobacco pipe B and dust fall between thick wall then fired, the export linked to each other with hot -blast boosting mechanism and desiccator through going out tobacco pipe C between the dust fall adjusted the temperature, dry barrel wall inboard is provided with the wind -guiding nest of tubes, the interior wall body of straight barrel fluidized bed furnace from supremely down set gradually the fluidized bed furnace stalk, the fluidized bed furnace enlarges the section and the cigarette revolves the brick tooth. The utility model discloses an adopt fluidized bed furnace, thick wall then fire between, the dust fall adjust the temperature between special construction, improved the coal burn -off rate, improved the clean degree of flue gas, very big improvement the flue gas shift out the effect, hot air temperature is stable, ensures that material moisture shifts out the effect.
Description
Technical field
The utility model belongs to fertilizer equipment technical field, particularly relates to a kind of boiling type hot-blast stove drying system with boosting mechanism, is applicable to the energy-conserving and environment-protective lustration type coal hot-air furnace system that production of phosphate fertilizer solid particle material is dried.
Background technology
MAP, Diammonium phosphate (DAP), double superhosphate and other calcium superphosphate are the principal item of China's phosphate fertilizer, and at present, the situation of China's phosphate fertilizer industry is severe, is faced with phosphate fertilizer production capacity surplus.Domestic and international market competitive environment constantly worsens, in order to avoid by market.Improve the quality of products except continually developing new product, reduce production cost also corporate bosses constantly ask most, current domestic large-scale phosphatic fertilizer company substantially achieves the utilization of heat energy in producing and eats dry bleeding.As the height to sulphuric acid process, in warm can generally accomplish recycle, heat energy average utilization is approximately 60%.Along with going deep into of research of technique, current domestic enterprise has grasped the sulfuric acid low temperature heat energy recycle technology of independent development, and these technology some Large sulfuric acid devices are at home applied, and the overall energy consumption of phosphate fertilizer industry decreases.
Domestic phosphatic fertilizer company is through the development of decades, although have to very much progress in every respect, along with market competition is growing more intense, Business survival pressure strengthens, consumption reduction of must constantly taping the latent power, and improves product inherence and external quality.The burn-off rate that current phosphate fertilizer drying system still exists coal is not high, the normal operation under positive pressure of hot-blast stove, lifetime of hot-air stove is shortened, in addition, because flue resistance is larger, the conveying of hot blast is not smooth, often cause heat delivery scarce capacity, material moisture is exceeded standard, also due to uncombusted impurity effect product appearance quality etc., who wants to win victory in keen competition environment, just must take the lead in solving the problem.Facts have proved, direct flue gas drying efficiency is the highest, current large-scale phosphate fertilizer device drying oven multiselect chain furnace and fluidized bed furnace.These two kinds of type of furnaces compare, chain furnace flue gas relative clean, but cinder carbon residue is higher; Fluidized bed furnace cinder carbon residue is very low, and flue gas uncombusted impurity is more, namely unclean, affects product quality.In addition, when drying machine band material runs, SR obviously increases, often cause that heat is defeated does not come in above, cause material above to burn, and material still dries and do not do below, also because drying machine outlet negative pressure is excessive, part fine material is taken out and has run, both caused product to reduce, system washing burden after increasing again.
Utility model content
For solving the problem, the utility model provides a kind of boiling type hot-blast stove drying system with boosting mechanism.Thus make the burn-off rate raising of phosphate fertilizer drying system coal, flue gas cleaning, hot blast conveying is smooth and easy, hot blast temperature is even, each section of drag uniform in system, eliminate visible assorted on problems such as product matter shadow presentation quality impacts, decrease fine material and take out race amount, alleviate rear system washing burden.
The utility model is achieved by following technical solution.
A kind of boiling type hot-blast stove drying system with boosting mechanism, comprise and all press air compartment, straight barrel type fluidized bed furnace, thick wall continues between combustion, between depositing dust temperature adjustment, hot blast boosting mechanism and drying machine, described air compartment of all pressing is connected with bottom straight barrel type fluidized bed furnace, described straight barrel type fluidized bed furnace upper outlet is continued between combustion by pipe A and Hou Qiang and is connected, between described thick wall continues and fires, lower part outlet is by being connected between pipe B with depositing dust temperature adjustment, export between described depositing dust temperature adjustment and be connected with drying machine with hot blast boosting mechanism by pipe C, guide duct group is provided with inside described drying machine barrel, the inner wall of described straight barrel type fluidized bed furnace is disposed with fluidized bed furnace stalk from bottom to up, fluidized bed furnace expanding reach and cigarette revolve brick tooth.
Described thick wall continues be made up of refractory brick and insulating brick between combustion and adds thick wall body, and arranges folding cigarette aperture of door parapet in Hou Qiang bottom between combustion of continuing, and arranges folding cigarette lead tooth in Hou Qiang Hou Qiang middle and upper part between combustion of continuing, and continues to be provided with bottom between combustion put ash bucket A at Hou Qiang.
Between described depositing dust temperature adjustment, front-back wall middle and upper part is provided with the grey teeth of resistance, and top is provided with cold-patch air-valve between depositing dust temperature adjustment, and between depositing dust temperature adjustment, bottom is provided with and puts ash bucket B.
Slag-discharge pipe and undergrate blast pipe is also communicated with bottom described straight barrel type fluidized bed furnace.
Described all pressure in air compartment is provided with equal air holes plate.
Described hot blast boosting mechanism props up seat by motor, major axis, rotating vane and major axis and is connected and forms.
Described putting bottom ash bucket A is provided with ash-removing valve A.
Described putting bottom ash bucket B is provided with ash-removing valve B.
The beneficial effects of the utility model are:
Compared with prior art, the utility model is by being arranged to all press air compartment by the furnace bottom of straight barrel type fluidized bed furnace body, and inner wall sets gradually fluidized bed furnace stalk from bottom to up, fluidized bed furnace expanding reach, cigarette revolve brick tooth.This structure has boiling evenly, noncoking, does not hang Jiao, revolves brick tooth by cigarette, extends the feature of high-temperature dust-containing flue gas at residing time in furnace; High-temperature flue gas by pipe A, Hou Qiang continue combustion in burn away, the thick wall of some layers of body of wall composition between whole thick wall continues and fires, insulation effect is good especially, and folding cigarette aperture of door parapet is set in Hou Qiang bottom between combustion of continuing, Hou Qiang middle and upper part arranges folding cigarette and leads tooth, this extends the stop of high-temperature flue gas constant temperature and burns away the time, and part bulky grain lime-ash falls into bottom ash bucket A and ash bucket B, and this structure is conducive to dedusting ash disposal; And hot blast boosting mechanism is set up in pipe C, clean flue gas is sent into drying machine; Also as dry guide duct group uniform at drying machine head barrel, send drying machine postmedian by part high-temperature flue gas, makes whole dry built-in temperature more even, makes fluidized bed furnace and the stable operation of burning device tiny structure.Guarantee fluidized bed furnace burn-off rate, ensure that flue gas cleaning effect, ensure that flue gas enters drying machine smoothly, avoid the generation of run, drip, leak accident, achieve hot-blast stove and the failure-free operation of smoke pipe long period, and then reduce maintenance rate and maintenance cost, extend hot blast stove system service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-all presses air compartment, 2-straight barrel type fluidized bed furnace, the thick wall of 3-pipe A, 4-continues between combustion, 5-pipe B, between the temperature adjustment of 6-depositing dust, 7-pipe C, 8-hot blast boosting mechanism, 9-drying machine, 10-guide duct group, 11-cold-patch air-valve, 12-hinders grey teeth, 13-puts ash bucket B, and 14-puts ash bucket A, and 15-rolls over cigarette aperture of door parapet, and 16-rolls over cigarette and leads tooth, 17-cigarette revolves brick tooth, 18-fluidized bed furnace expanding reach, 19-fluidized bed furnace stalk, 20-slag-discharge pipe, 21-undergrate blast pipe, 22-ash-removing valve A, 23-ash-removing valve B.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1, a kind of boiling type hot-blast stove drying system with boosting mechanism described in the utility model, comprise and all press air compartment 1, straight barrel type fluidized bed furnace 2, thick wall continue combustion between 4, between depositing dust temperature adjustment 6, hot blast boosting mechanism 8 and drying machine 9, described air compartment 1 of all pressing is connected with bottom straight barrel type fluidized bed furnace 2, described straight barrel type fluidized bed furnace 2 upper outlet by pipe A3 and Hou Qiang continue combustion between 4 be connected, described thick wall to continue between combustion 4 lower part outlets by 6 being connected between pipe B5 with depositing dust temperature adjustment, between described depositing dust temperature adjustment, 6 outlets are connected with drying machine 9 with hot blast boosting mechanism 8 by pipe C7, guide duct group 10 is provided with inside described drying machine 9 barrel, the inner wall of described straight barrel type fluidized bed furnace 2 is disposed with fluidized bed furnace stalk 19 from bottom to up, fluidized bed furnace expanding reach 18 and cigarette revolve brick tooth 17.Adopt the technical program, guarantee that blast cap air feed is even, and select bell-jar alloy wind to emit, boiling section surrounding is designed to stalk in addition; This wall body structure, eliminates the dead angle that boiling is uneven, then coordinates with uniform furnace bottom air feed, thus reduces coking risk.Fluidized bed furnace stalk 19 upper end connects sudden enlargement section, and cigarette speed is reduced suddenly, then is equipped with cigarette and revolves brick tooth 17, high-temperature flue gas is rolled in upper furnace, so, extends high-temperature flue gas time of staying in burner hearth further, therefore, burn more abundant.Special construction between the technical program is continued fired by employing fluidized bed furnace, Hou Qiang, between depositing dust temperature adjustment, improves coal burn-off rate, improves flue gas cleaning degree, improve product appearance quality; Also due to the setting of guide duct group in hot blast boosting mechanism in pipe C and drying machine, what improve flue gas greatly shifts out effect, and hot blast temperature is stablized, and guarantees that material moisture shifts out effect, improves product inherent quality; Alleviate fine material and enter vent gas washing system; Also avoid Thermal Equipment to assemble because of high temperature heat to cause burning out accident.
Described thick wall to continue between combustion and 4 be made up of refractory brick and insulating brick and add thick wall body, and to continue between combustion bottom 4 at Hou Qiang and arrange folding cigarette aperture of door parapet 15, arranges folding cigarette lead tooth 16 in Hou Qiang 4 Hou Qiang middle and upper parts between combustion of continuing, Hou Qiang continue fire between be provided with bottom 4 and put ash bucket A14.Adopt the technical program; high-temperature flue gas from burner hearth is streamed at the Hou Qiang 4 foldings gears of leading tooth 16 and folding cigarette aperture of door parapet 15 through folding cigarette from top to bottom that to continue between combustion; the prolong smoke time of staying again; flue gas is burnt away under close to adiabatic situation, and the sedimentation of unburnt bulky grain lime-ash is entered to put ash bucket A14 discharges.
Between described depositing dust temperature adjustment, 6 front-back wall middle and upper parts are provided with the grey teeth 12 of resistance, and 6 tops are provided with cold-patch air-valve 11 between depositing dust temperature adjustment, be provided with bottom 6 and put ash bucket B13 between depositing dust temperature adjustment.Adopt the technical program, make from thick wall to continue between combustion 4 high-temperature flue gas between depositing dust temperature adjustment, continue after-flame in 6, between depositing dust temperature adjustment 6 flue gas to lower and on motion, hinder grey teeth 12 with body of wall surrounding and meet and collide, the separation of particle flue dust is fallen into and puts ash bucket B13; Clean flue gas arrives 6 tops between depositing dust temperature adjustment, meets, need to carry out hot blast temperature allotment, according to technique generally between 320-350 degree with the cold wind of cold-patch air-valve 11.
Slag-discharge pipe 20 and undergrate blast pipe 21 is also communicated with bottom described straight barrel type fluidized bed furnace 2.
Described all pressure in air compartment 1 is provided with equal air holes plate.
Described hot blast boosting mechanism 8 props up seat by motor, major axis, rotating vane and major axis and is connected and forms.In the technical program, rotating vane is welded in the middle part of major axis, is arranged symmetrically with, and motor drives major axis and rotating vane to rotate, and gives flue gas boosting herein.Because flue-gas temperature in pipe C7 has not been too high, therefore, major axis and rotating vane all can select common iron.
Described pipe C7 is connected with drying machine 9, and is provided with guide duct group 10 inside drying machine 9 inducer cylindrical shell.When making, guide duct group 10 is fixed on barrel symmetrically, but consider pipeline extension performance, the every root length of guide duct group 10 is not etc., the longest half being no more than drying machine 9 barrel lenght, adopts the technical program, moves after mainly making part high-temperature flue gas suitably, and guarantee homogeneous temperature in cylindrical shell as far as possible, be conducive to dry materials.
Described putting bottom ash bucket A14 is provided with ash-removing valve A22; Put bottom ash bucket B13 and be provided with ash-removing valve B23.Adopt the technical program, mainly make part uncombusted ash collection discharge, reduce subsequent product quality influence.
The utility model rational technology, compact conformation; Due to the special construction that fluidized bed furnace, Hou Qiang continue between combustion, between depositing dust temperature adjustment, and be connected successively, the combustion rate of coal improves, and significantly reduces the dustiness of flue gas; And hot blast boosting mechanism is connected and installed in pipe C, and guide duct group is provided with inside drying machine inducer cylindrical shell, this structure improves flue gas conveying effect, installation and repairing is changed convenient, adapt to the transformation of current all kinds drying unit, its correctional effect is good, and investment for trnasforming urban land is little, improves the deficiency that hot blast conveying pipe road resistance is large.Have applied widely, the advantages such as result of use is good, and the life-span is longer, can in drying materials production technical field wide popularization and application, it is better that especially new system Construction once invests overall economic efficiency.
Claims (8)
1. the boiling type hot-blast stove drying system with boosting mechanism, it is characterized in that: comprise and all press air compartment (1), straight barrel type fluidized bed furnace (2), thick wall continues between combustion (4), between depositing dust temperature adjustment (6), hot blast boosting mechanism (8) and drying machine (9), described air compartment (1) of all pressing is connected with straight barrel type fluidized bed furnace (2) bottom, described straight barrel type fluidized bed furnace (2) upper outlet by pipe A (3) and thick wall continue fire between (4) be connected, between described thick wall continues and fires, (4) lower part outlet is connected with (6) between depositing dust temperature adjustment by pipe B (5), between described depositing dust temperature adjustment, (6) outlet is connected with drying machine (9) with hot blast boosting mechanism (8) by pipe C (7), guide duct group (10) is provided with inside described drying machine (9) barrel, the inner wall of described straight barrel type fluidized bed furnace (2) is disposed with fluidized bed furnace stalk (19) from bottom to up, fluidized bed furnace expanding reach (18) and cigarette revolve brick tooth (17).
2. a kind of boiling type hot-blast stove drying system with boosting mechanism according to claim 1, it is characterized in that: between described thick wall continues and fires, (4) are made up of refractory brick and insulating brick and add thick wall body, and Hou Qiang continue combustion between (4) bottom arrange folding cigarette aperture of door parapet (15), folding cigarette is set leads tooth (16) in Hou Qiang (4) Hou Qiang middle and upper part between combustion of continuing, be provided with put ash bucket A (14) in Hou Qiang (4) bottom between combustion of continuing.
3. a kind of boiling type hot-blast stove drying system with boosting mechanism according to claim 1, it is characterized in that: between described depositing dust temperature adjustment, (6) front-back wall middle and upper part is provided with the grey teeth of resistance (12), and (6) top is provided with cold-patch air-valve (11) between depositing dust temperature adjustment, between depositing dust temperature adjustment, (6) bottom is provided with and puts ash bucket B (13).
4. a kind of boiling type hot-blast stove drying system with boosting mechanism according to claim 1, is characterized in that: described straight barrel type fluidized bed furnace (2) bottom is also communicated with slag-discharge pipe (20) and undergrate blast pipe (21).
5. a kind of boiling type hot-blast stove drying system with boosting mechanism according to claim 1, is characterized in that: described all pressure in air compartment (1) is provided with equal air holes plate.
6. a kind of boiling type hot-blast stove drying system with boosting mechanism according to claim 1, is characterized in that: described hot blast boosting mechanism (8) is propped up seat by motor, major axis, rotating vane and major axis and is connected and forms.
7. a kind of boiling type hot-blast stove drying system with boosting mechanism according to claim 2, is characterized in that: described in put ash bucket A (14) bottom be provided with ash-removing valve A (22).
8. a kind of boiling type hot-blast stove drying system with boosting mechanism according to claim 3, is characterized in that: described in put ash bucket B (13) bottom be provided with ash-removing valve B (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811131.8U CN205119659U (en) | 2015-10-19 | 2015-10-19 | Take boiling formula hot -blast furnace drying system of boosting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811131.8U CN205119659U (en) | 2015-10-19 | 2015-10-19 | Take boiling formula hot -blast furnace drying system of boosting mechanism |
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| CN205119659U true CN205119659U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520811131.8U Expired - Fee Related CN205119659U (en) | 2015-10-19 | 2015-10-19 | Take boiling formula hot -blast furnace drying system of boosting mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682714A (en) * | 2019-02-02 | 2019-04-26 | 农业部规划设计研究院 | A kind of heap body measure of resistance device and resistance coefficient acquisition methods |
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2015
- 2015-10-19 CN CN201520811131.8U patent/CN205119659U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682714A (en) * | 2019-02-02 | 2019-04-26 | 农业部规划设计研究院 | A kind of heap body measure of resistance device and resistance coefficient acquisition methods |
| CN109682714B (en) * | 2019-02-02 | 2023-11-10 | 农业部规划设计研究院 | Pile body resistance measuring device and resistance coefficient obtaining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20191019 |