CN202322652U - Monitoring mechanism of desulfurization gypsum drying and calcining machine - Google Patents
Monitoring mechanism of desulfurization gypsum drying and calcining machine Download PDFInfo
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- CN202322652U CN202322652U CN2011205118425U CN201120511842U CN202322652U CN 202322652 U CN202322652 U CN 202322652U CN 2011205118425 U CN2011205118425 U CN 2011205118425U CN 201120511842 U CN201120511842 U CN 201120511842U CN 202322652 U CN202322652 U CN 202322652U
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- Prior art keywords
- calcining
- temperature
- gypsum
- desulfurated plaster
- monitoring mechanism
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- 238000001354 calcination Methods 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 229910052602 gypsum Inorganic materials 0.000 title abstract description 38
- 239000010440 gypsum Substances 0.000 title abstract description 38
- 238000001035 drying Methods 0.000 title abstract description 21
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 4
- 230000023556 desulfurization Effects 0.000 title abstract description 4
- 239000011505 plaster Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 24
- 239000006227 byproduct Substances 0.000 description 18
- 239000000843 powder Substances 0.000 description 17
- 238000013022 venting Methods 0.000 description 16
- 150000004683 dihydrates Chemical group 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a monitoring mechanism of a desulfurization gypsum drying and calcining machine, which is characterized by comprising a temperature sensor arranged on the inner wall of a casing. The temperature sensor is connected with a control module, and the control module is connected with a motor for driving the casing to rotate. The monitoring mechanism can monitor calcination temperature of the desulfurization gypsum drying and calcining machine in real time so as to guarantee that the temperature in a device is in a range required by a process, and guarantees smooth operation of gypsum calcinations.
Description
Technical field
The utility model relates to a kind of calciner, the dry calcining of especially a kind of desulfurated plaster machine monitoring mechanism.
Background technology
Gypsum, its staple is a calcium sulfate, comprises the plaster of paris and industry by-product gypsum.Industry by-product gypsum is the by product of some commercial runs, and it mainly comprises phosphogypsum and desulfurated plaster.At present, industrial by-product desulfurated plaster accumulation volume of cargo in storage surpasses 300,000,000 tons, and wherein, desulfurated plaster is more than 5,000 ten thousand tons.The industrial by-product desulfurated plaster is stored up in a large number, and both land occupation was wasted resource again, and acid and other objectionable impuritiess that contain pollute surrounding enviroment easily, have become the important factor of restriction China's coal-firing units gas desulfurization and phosphatic fertilizer company Sustainable development.According to statistics, 2009, about 1.18 hundred million tons of China's industrial by-product desulfurated plaster generation, comprehensive utilization ratio is merely 38%.Wherein, about 4,300 ten thousand tons of desulfurated plaster, comprehensive utilization ratio about 56%; So the second stage employ technology of exploitation industrial by-product desulfurated plaster remains the problem that is worth research at present.
The staple of industrial by-product desulfurated plaster is a dihydrate gypsum, is the perfect raw material of producing building materials, is the basic material of production gypsum block, gypsum brick, plasterboard, the big wallboard of gypsum and brushing gypsum etc.The plastering that produces at first is to be dihydrate gypsum with the industrial by-product desulfurated plaster, and drying and calcining becomes qualified semi-hydrated gypsum, just can produce various goods then; But existing drying plant power consumption is too high, and output is little again, and facility investment is then higher, makes that the cost of former powder per ton is high, and as again it being fabricated to goods, its production cost is to have surpassed the valency of accepting in market.
The technology of current drying and calcining to industrial by-product desulfurated plaster powder has following two kinds.
1. majority is to adopt the air stream drying method: promptly dryly in a housing carry out simultaneously with calcining, its advantage is that terra alba was heated in the short time, can be under the hot gas flow effect, make that powder is comprehensive to be heated, and reach the exsiccant purpose; Its shortcoming is that energy consumption is bigger, and equipment cost is too big, and output is too low; Particularly material contacts the high temperature dry gas stream earlier in same housing; After the surface-moisture drying with material, contact the low temperature wet gas current then again, such processing unit is the crystal water incinerating that is unfavorable for gypsum; Often the temperature at the exhaust emissions place is about the 140-160 degree, and energy consumption is quite high; Be that one ton of semi-hydrated gypsum of every production need be marked 150 kilograms in coal; Pneumatic drier is to lean on gas blower with hot gas flow and the terra alba drying duct of making a gift to someone in addition, and the height of pipeline needs the height of 13-20 rice usually, and diameter reaches 1 meter; Gas blower that must be bigger could be realized; Power consumption is sizable; The installation of its this gas blower is just up to 180-240 kilowatt.So with the semi-hydrated gypsum of pneumatic drier manufacture by-product desulfurated plaster, cost is too high.
2. employing whizzer: the drying of whizzer, be when rotating cylinder rotates through the material delivering plate in the rotating cylinder, gypsum powder is kicked up, under acting on the exchange of hot gas flow under, gypsum material is carried out drying and calcining; Employing and gypsum powder heading is mobile hot gas flow drying and calcining in opposite directions, is downflow system drying and calcining method; Another kind is the hot gas flow drying and calcining method opposite with gypsum powder heading, is reverse formula drying and calcining method; The advantage of tumble dryer is that power consumption is little, but the consumption of coal also is bigger; Tumble dryer is under the effect of material delivering plate; Can make that dihydrate gypsum powder and hot gas flow are comprehensive to be contacted, be able to drying and calcining fully, but its air flow line be a single direction; So just determined dihydrate gypsum in rotating cylinder with the contacting of hot gas flow; Be prior to dry air contact and again with the process of wet air, the drying process of this and dihydrate gypsum does not match, and is unscientific.
Dihydrate gypsum is that 1. at this moment the surface water of dry dihydrate gypsum needs long time, higher temperature to the drying and calcining process of semi-hydrated gypsum; Temperature can be at the 600-800 degree; Surface water is removed fast; 2. the crystal water of calcined gypsum, the time that needs is short, and the temperature that at this moment needs is 170 to spend, and this temperature can not be too high, and need the temperature of dry gas stream, can produce qualified semi-hydrated gypsum powder; Surpass 170 degree and will be sintered into dehydrated gyp-.
Event need be provided with a kind of monitoring temperature mechanism that can guarantee calcining temperature in required scope.Simultaneously present pneumatic drier and tumble dryer, their hot gas flow mode are difficult to realize the drying and calcining process demand of industrial by-product desulfurated plaster.
The utility model content
Not enough to above-mentioned prior art, the technical problem that the utility model will solve is: how to provide a kind of and can realize monitoring to calcining temperature, be in the dry calcining of the desulfurated plaster machine monitoring mechanism of the required scope of technology with temperature in the assurance equipment; The utility model also provides a kind of dry calcining machine of desulfurated plaster that has adopted this monitoring mechanism simultaneously; The dry calcining machine of this desulfurated plaster is specially to the design of industrial by-product desulfurated plaster; Can better the industrial by-product desulfurated plaster be converted into semi-hydrated gypsum; It is good to possess changing effect simultaneously, the characteristics of good energy saving property.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model.
The dry calcining of a kind of desulfurated plaster machine monitoring mechanism, its characteristics are that said monitoring mechanism comprises the TP that is arranged at inner walls, and said TP links to each other with control module, and said control module links to each other with the motor that drives the housing rotation.
Like this, adopt the utility model can monitor the dry calcining of desulfurated plaster engine housing temperature inside, if temperature is low excessively; Then controlling the motor output speed slows down; Reducing the housing rotating speed, and then material velocity of flow in housing reduces, so that temperature obtains being lifted to is temperature required.If the enclosure interior temperature is too high, then controls the motor output speed and accelerate to get final product.During practical implementation, TP preferably is arranged on the corresponding position of calcining section, so that most important calcining temperature is monitored.Simultaneously, concrete implementation of regulating relies on the interior pre-set programs of control module to control automatically, and preset program can realize according to control field routine techniques, not this tired stating.
In sum, the utility model can realize that the calcining temperature of the dry calcining machine of desulfurated plaster realizes monitoring, is in the required scope of technology with temperature in the assurance equipment; Guarantee carrying out smoothly of gypsum calcination.
Description of drawings
Fig. 1 is the structural representation that has adopted the dry calcining machine of desulfurated plaster of the utility model monitoring mechanism.
Fig. 2 is from the xsect left view of housing feed end carrying roller among Fig. 1.
Fig. 3 is the syndeton synoptic diagram of the monitoring mechanism of the utility model.
Embodiment
Do further to specify below in conjunction with accompanying drawing and a kind of dry calcining machine of desulfurated plaster of the utility model structure that adopted.
As depicted in figs. 1 and 2, the dry calcining machine of a kind of desulfurated plaster comprises horizontally disposed cylindrical shell 1; Wherein, Housing 1 feed end has the aiutage 2 that fixedly installs, and housing 1 discharge end has the discharge barrel 3 that fixedly installs, and aiutage 2 upper ends have venting port 4 upwards; Discharge barrel 3 lower ends have downward discharge port 5, and housing 1 is arranged between aiutage 2 and the discharge barrel 3 rotationally; Housing 1 is realized rolling bearing by the two pairs of carrying rollers 6 that are positioned at outside below; Housing 1 leans on transmission rig to link to each other with motor and can be driven to rotate; Said transmission rig comprises fixedly sleeved at the passive gear 7 of housing 1 outside and the driving toothed gear that links to each other with motor (omitting in the structure iron 1 of motor and driving toothed gear), and said driving toothed gear is meshed with passive gear 7; Said housing 1 inwall is tiltedly installed with some material delivering plates 8 that can move ahead with housing 1 rotating band animal material; The feed end of said housing 1 also is provided with feed mechanism; Said feed mechanism comprises a long strip shape charging body 9 that is horizontally disposed with and is piercing in outside the charging aiutage 2; Forward be provided with feeding-passage in the charging body 9; Said charging body 9 is positioned at charging aiutage 2 end outward to being provided with loading hopper 10; Feeding-passage one ends in loading hopper 10 lower ends and the charging body 9 are communicated with, and the feeding-passage the other end and housing 1 internal communication also are provided with in the said feeding-passage and are used for taking material to housing 1 interior spiral propeller 11 from loading hopper 10; Also include the stove pipe 12 that forward is arranged at enclosure interior; Said stove pipe 12 1 ends pass outside the aiutage 2 and are inlet end; Stove pipe 12 the other ends are positioned at housing 1 and are closedend; Stove pipe 12 is positioned at housing 1 inner chamber upper part with respect to the raise up opposite side of side of material; Oblique below one side to housing 1 axis above the stove pipe 12 is provided with plurality of rows pore 13, and said venting hole 13 is divided into first section venting hole, second section venting hole and the 3rd section venting hole with line direction before the material, and the pore distribution density of first section venting hole, second section venting hole and the 3rd section venting hole reduces successively.In addition, during practical implementation, the feeding-passage on the said charging body 9 can preferably be set to the structure of feed chute.Above the said stove pipe 12 to raise up the also oblique wind screen board 17 (referring to Fig. 2) that is arranged with of a side of position of material; Said wind screen board 17 is used to limit the outgassing direction of venting hole 13; It is given vent to anger to the material position of kicking up, further improve HU.
During practical implementation; As shown in Figure 3; The dry calcining machine of this desulfurated plaster has also adopted the monitoring mechanism of the utility model; Said monitoring mechanism comprises the TP 14 that is arranged at inner walls, and said TP 14 links to each other with control module 15, and said control module 15 links to each other with said motor 16.Motor 16 drives housing 1 through said transmission rig and rotates.
The dry calcining machine of above-mentioned desulfurated plaster designs to the process requirements condition that industrial by-product desulfurated plaster drying is calcined to semi-hydrated gypsum for special.Wherein, said spiral propeller is a prior art, generally comprises a bull stick, and bull stick is outside equipped with spiral vane, and bull stick links to each other with a motor and is driven to rotate and then realizes the screw propulsion of material, and its concrete structure is no longer described.When the dry calcining machine of this desulfurated plaster used, motor drove the housing rotation through transmission rig, and industrial by-product desulfurated plaster powder enters in the feeding-passage of charging body from loading hopper, and is brought into enclosure interior by spiral propeller.Make material constantly kicked up and fall by material delivering plate when housing rotates to the inner walls back upper place, so the time material constantly discharge port falls from aiutage one end motion to discharge barrel one end and from the discharge barrel lower end, be transported to subsequent handling.In the said process, high temperature gas flow gets into from the stove pipe inlet end, and discharges in the venting hole powder in the housing is heated, and the air-flow after the heating is drained above the aiutage of feed end.Wherein the position of stove pipe and venting hole setting can be so that hot gas flow be blown into over against the powder of being kicked up from the direction that moves ahead perpendicular to powder, so farthest improved the rate of heat exchange of hot gas flow and powder.Simultaneously, the mode that the venting hole distribution density reduces is gradually arranged, because just got into the powder of housing, needs high temperature to make excessive moisture evaporation in the powder, and at this moment the surface water of dry dihydrate gypsum needs long time, higher temperature; Gas flow temperature can be at the 600-800 degree; So first section venting hole density is maximum, and material table face water is removed fast.Material gets into second section venting hole position then, and this moment, material self excessive moisture evaporated, and temperature of charge can improve rapidly with gas flow temperature; And the dihydrate gypsum calcining is semi-hydrated gypsum, the temperature that needs is 170 degree, so second section venting hole distribution density reduced; Reduce the ejection airshed; Keep the interior temperature of housing to be in about 170 degree,, obtain semi-hydrated gypsum so that material is calcined.During to the 3rd section venting hole, pore distribution density reduces once more, and this section is the equilibrium temperature section, can the body temperature of material be lowered the temperature after calcining, makes its temperature stable and reduction output powder.Simultaneously can the unnecessary heat of powder be brought into the place ahead wet feed end by air-flow, to improve HU, the intravital wet air of shell can not contact with dry material yet, guarantees burning quality.So can better the industrial by-product desulfurated plaster be converted into semi-hydrated gypsum, it is good to have a changing effect, high efficiency, and heat utilization efficiency is high, the advantage of good energy saving property.
In addition, it is worthy of note that the structure of the utility model can also be applicable in other industry by-product gypsum drying and calcining machines to adopt, should be regarded as falling into the utility model protection domain equally.
Claims (1)
1. the dry calcining of a desulfurated plaster machine monitoring mechanism is characterized in that said monitoring mechanism comprises the TP that is arranged at inner walls, and said TP links to each other with control module, and said control module links to each other with the motor that drives the housing rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205118425U CN202322652U (en) | 2011-12-09 | 2011-12-09 | Monitoring mechanism of desulfurization gypsum drying and calcining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205118425U CN202322652U (en) | 2011-12-09 | 2011-12-09 | Monitoring mechanism of desulfurization gypsum drying and calcining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322652U true CN202322652U (en) | 2012-07-11 |
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|---|---|---|---|
| CN2011205118425U Expired - Fee Related CN202322652U (en) | 2011-12-09 | 2011-12-09 | Monitoring mechanism of desulfurization gypsum drying and calcining machine |
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| Country | Link |
|---|---|
| CN (1) | CN202322652U (en) |
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2011
- 2011-12-09 CN CN2011205118425U patent/CN202322652U/en not_active Expired - Fee Related
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Effective date of registration: 20130626 Address after: Futian District Fuhua Futian Street northbound 518048 Shenzhen city in Guangdong province Shenzhen International Trade Plaza office building room 2705A Patentee after: Shenzhen Zhongjun Derui Environmental Protection Resource Development Co., Ltd. Patentee after: Wang Anquan Address before: The 400083 District Dadukou District of Chongqing No. 44 -25 Patentee before: Wang Anquan |
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Effective date of registration: 20130730 Address after: Futian District Fuhua Futian Street northbound 518048 Shenzhen city in Guangdong province Shenzhen International Trade Plaza office building room 2705A Patentee after: Shenzhen Zhongjun Derui Environmental Protection Resource Development Co., Ltd. Address before: Futian District Fuhua Futian Street northbound 518048 Shenzhen city in Guangdong province Shenzhen International Trade Plaza office building room 2705A Patentee before: Shenzhen Zhongjun Derui Environmental Protection Resource Development Co., Ltd. Patentee before: Wang Anquan |
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Owner name: WANG ANQUAN Free format text: FORMER OWNER: SHENZHEN ZHONGJUN DERUI ENVIRONMENTAL PROTECTION RESOURCE DEVELOPMENT CO., LTD. Effective date: 20150907 |
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Effective date of registration: 20150907 Address after: The 400083 District Dadukou District of Chongqing No. 44 -25 Patentee after: Wang Anquan Address before: Futian District Fuhua Futian Street northbound 518048 Shenzhen city in Guangdong province Shenzhen International Trade Plaza office building room 2705A Patentee before: Shenzhen Zhongjun Derui Environmental Protection Resource Development Co., Ltd. |
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