CN203187580U - Alpha+beta mixed type semi-hydrated gypsum powder preparation device - Google Patents
Alpha+beta mixed type semi-hydrated gypsum powder preparation device Download PDFInfo
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- CN203187580U CN203187580U CN 201320187736 CN201320187736U CN203187580U CN 203187580 U CN203187580 U CN 203187580U CN 201320187736 CN201320187736 CN 201320187736 CN 201320187736 U CN201320187736 U CN 201320187736U CN 203187580 U CN203187580 U CN 203187580U
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- gypsum powder
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- hydrated gypsum
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Abstract
The utility model discloses an alpha+beta mixed type semi-hydrated gypsum powder preparation device. The device comprises a steam boiler and a pressure kettle for finishing wet steaming operation; a jaw crusher and a powder mill for grinding primary powder; a combined rotary kiln for frying primary powder and an electrostatic precipitator for realizing electrostatic precipitation; the combined rotary kiln comprises a cylinder part, a transmission part, a material conveying part and a heating part, the cylinder part comprises at least two concentric drums which are sleeved together and provided with the same capacity; the material conveying part comprises a feeding port at one end of the concentric drums, a discharging part which is at the same end with the feeding port or opposite to the feeding port, and an assistant material-conveying structure, the assistant material-conveying structure comprises a helical blade an/or lifting board on the inner wall of the concentric drums. The alpha+beta mixed type semi-hydrated gypsum powder preparation device disclosed by the utility model has the beneficial effect that the maximum energy-saving and cost-reducing can be realized, each ton of gypsum powder can be produced by only 10-12kg of coals in the frying step by frying the gypsum powder using the process and equipment disclosed by the utility model, and the electricity consumption is reduced by 70% in comparison with the prior art.
Description
Technical field
The utility model relates to the terra alba production technical field, especially relates to a kind of alpha+beta mixed type semi-hydrated gypsum powder and prepares equipment.
Background technology
Terra alba is widely used in numerous Application Areass such as building, building materials, mould and artistic model, chemical industry and agricultural, food-processing and medicine beauty treatment, is a kind of important industrial raw materials.Wherein, be used for the gypsum that material of construction is produced, comprise the plaster of paris and chemical gypsum, the plaster of paris has natural dihydrate gypsum and natural dehydrated gyp-, and the natural dihydrate gypsum quality is softer, and natural dehydrated gyp-quality is harder, so be called anhydrite again, industrial commonly used be natural dihydrate gypsum.After dihydrate gypsum was heated to certain temperature, gypsum lost partial crystallization water, obtains semi-hydrated gypsum, and semi-hydrated gypsum is a kind of air hardening cementitious materials, had two kinds of forms of α and β, the crystallization that all assumes diamond in shape, but physicals difference.Alpha semi-hydrated gypsum well-crystallized, solid also claim high strength gypsum, but water-absorbent is poor, crackle is arranged, intensity difference, but good water absorption and beta-type semi-hydrated gypsum is plate crystal and its surface.Alpha semi-hydrated gypsum is applicable to the high plastering engineering of requirement of strength, decorated articles and plasterboard, and beta-type semi-hydrated gypsum is applicable to analogue formation, sculpture and decoration floriation etc.And alpha+beta mixed type semi-hydrated gypsum powder to be exclusively used in sanitary ware (such as toilet, hand basin etc.) be the production of the slip casting product mold of representative.
In the conventional art, the production technique of alpha+beta mixed type semi-hydrated gypsum powder has following two kinds of methods, first kind is single stage method, namely produce high-intensity alpha semi-hydrated gypsum powder and beta-type semi-hydrated gypsum powder respectively, at last both are mixed according to a certain percentage, to reach the performance index that mould needs, in this technology owing to need produce both different terra albas respectively, use different technology and equipment, therefore plant and equipment investment is big, energy consumption height, production control link complexity, and its quality is wayward, and production cost is high.Second kind is two-step approach, namely earlier dihydrate gypsum is steamed pressure according to processing requirement, obtain containing the gypsum material of alpha semi-hydrated gypsum, then gypsum material is shifted out airing, after airing is finished gypsum material is processed into terra alba, utilize vertical at last or horizontal saute pan frying terra alba, obtain alpha+beta mixed type semi-hydrated gypsum powder.This technology is intermittent type processing, after one pot of stir-fry is good, pours out, and carries out the frying processing of another pot after the charging again, like this, product instability time of coagulation, thus the terra alba unstable properties caused, and the finished product mould contingency question of making is multiple, and power consumption is big, cost is high.
Summary of the invention
The purpose of this utility model is to provide a kind of alpha+beta mixed type semi-hydrated gypsum powder to prepare equipment, technology is two steps, continous way processing, use internally heated type during the frying terra alba, had the combined type rotary kiln of three concentric rotating cylinders, thereby it is energy-saving and cost-reducing significantly, the technical scheme that adopts is: a kind of alpha+beta mixed type semi-hydrated gypsum powder prepares equipment, and it is characterized in that: described equipment comprises: the steam boiler for generation of steam in the wet steaming step steams the autoclave pressure of operation with finishing to wet; Realize the jaw crusher of gypsum material fragmentation in fragmentation and the abrasive dust step and finish the pulverizing mill that first grinding system is operated; Comprise the combined type rotary kiln of realizing powder frying just and the electrostatic precipitator of realizing electrostatic precipitation in the frying step; The combined type rotary kiln comprises shell portion, driving part, mass transport part and hot spots, described shell portion comprise be sleeved on together, at least two concentric rotating cylinders that capacity is identical; Described mass transport partly comprise the opening for feed that is positioned at described concentric rotating cylinder one end, with discharge port and auxiliary defeated material structure that described opening for feed arranges with end or heterodoxy, described auxiliary defeated material structure comprises screw-blade and/or the material delivering plate that is positioned on the described concentric rotating cylinder inwall.
The technical solution of the utility model also has: described hot spots comprises producer gas generator, is passed into opening for feed after the coal gas process pipe-line transportation that produces in the described producer gas generator to feed in the mouth with the combustion gas that end arranges.
The technical solution of the utility model also has: described hot spots also comprises gas cylinder, and described gas cylinder is positioned at described concentric rotating cylinder and arranges with concentric rotating cylinder is concentric.
The technical solution of the utility model also has: the length of described gas cylinder is 2/3 of concentric rotating cylinder length.
The technical solution of the utility model also has: described driving part comprises the wheel band of the concentric rotating cylinder outside that is located at the diameter maximum and the support roller that rotates in driven by motor.
The technical solution of the utility model also has: described concentric rotating cylinder is three, is respectively outer rotaring tube, middle rotating cylinder and interior rotating cylinder, and fixed arrangement has the material delivering plate different with the axis angle on the inwall of described three concentric rotating cylinders.
The technical solution of the utility model also has: material delivering plate and the axis of rotating cylinder are 8 in described
oAngle, material delivering plate and the axis of described middle rotating cylinder and outer rotaring tube are 10
oAngle.
The technical solution of the utility model also has: described electrostatic precipitator comprises steam and flue gas mixing delivery conduit.
The technical solution of the utility model also has: described electrostatic precipitator comprises steam and flue gas mixing delivery conduit.
The beneficial effects of the utility model are: 1) the combined type rotary kiln has the concentric rotating cylinder more than two that is installed together, material is from inside to outside discharged from discharge port through after each successively, when having guaranteed calcination time, greatly dwindled cylindrical shell length, thereby basic floor space has been saved more than 50%, and three combined type rotary kilns have saved 65% with foundation area especially.The combined type tube structure self has formed a heat-insulation system, and the inflammable gas heat that produces that burns in combustion barrel progressively outwards distributes, and outer rotaring tube is in the low-temperature zone of hot gas flow again simultaneously, like this, heat exchange area increases, and heat energy is fully utilized, and thermo-efficiency improves greatly.Through test, use one ton of terra alba of this technology frying, in the frying step, only need the coal of 10-12 kilogram, the frying process that adopts external heating mode to finish in internally heated type rotary kiln stir-frying-technology power consumption and the prior art is compared electric energy and is reduced by 70%.
2) steam that produces in the terra alba production and flue gas are transported to by the mixing delivery conduit and carry out dust removal process in the electrostatic dust removal installation, the design of separating with flue gas pipeline than original steam, because flue-gas temperature is higher than the temperature of steam, being equivalent to prolong steam reforming after the mixing is the time of water, even thereby assurance is in the winter of cold, mix the also fully sedimentation of terra alba in steam and flue gas, guaranteed dust removing effects.
Description of drawings
Embodiment
Below in conjunction with accompanying drawing, the utility model is specifically described.The utility model discloses a kind of alpha+beta mixed type semi-hydrated gypsum powder and prepare equipment, may further comprise the steps corresponding to the preparation technology of this equipment: choose material: select satisfactory, pure gypsum material; The wet steaming: gypsum material is put in the autoclave pressure, and setting pressure is the 5-7 kilogram, and temperature is 150-200 ℃, and steaming time is 4.5-6 hour; Airing: the gypsum material that steams after finishing shifts out autoclave pressure, locates to carry out airing in the open, and the time is 3-7 days; Fragmentation and abrasive dust: gypsum material is carried out fragmentation and abrasive dust processing, obtain 100-140 purpose powder just after finishing; Frying: first powder is delivered in the interior rotating cylinder of combined type rotary kiln through the defeated material of continous way, this rotary kiln is the inside burning type rotary kiln, be provided with in the rotating cylinder in it and realize that the combustion gas that inflammable gas is carried feeds mouth, rotating cylinder 8 in just powder passes through successively, outer rotaring tube 6 or interior rotating cylinder 8, finished products are outwards exported from discharge port 2 in middle rotating cylinder 7 and outer rotaring tube 6 backs, the kiln hood temperature is 450-550 ℃ during frying, kiln tail temperature is 155-190 ℃, the finished product temperature is 150-185 ℃, first powder moves axially V-bar in kiln be 1m/min, when using the design of three rotating cylinders, powder axial speed in interior rotating cylinder 6 is 1.1-1.3m/min, and axially speed is 0.8-1m/min in middle rotating cylinder 7 and outer rotaring tube 6.The steam that forms in the frying and flue gas are delivered to the sedimentation of carrying out dust in the electrostatic precipitator through vapour line, flue gas pipeline respectively and handle.In order to cut down the consumption of energy, in this combined type rotary kiln, used internal heating, the combustion gas of rotating cylinder fed mouth in coal gas was delivered to from producer gas generator, thereby burning combustible gas, the inner core of heating, and and then realize in the progressively intensification of rotating cylinder and outer rotaring tube, reach the purpose of frying terra alba.This progressively heating mode has two characteristics: the one, and improve thermo-efficiency greatly, reduced heat lost by radiation; The 2nd, can effectively avoid the mistake of terra alba to fry, owe to fry and the phenomenon that hardens, improved terra alba frying quality.
The utility model discloses a kind of equipment that is applicable to above-mentioned technology, this equipment comprises: the steam boiler for generation of steam in the wet steaming step steams the autoclave pressure of operation with finishing to wet; Realize the jaw crusher of gypsum material fragmentation in fragmentation and the abrasive dust step and finish the pulverizing mill that first grinding system is operated; Comprise the combined type rotary kiln of realizing powder frying just and the electrostatic precipitator of realizing electrostatic precipitation in the frying step; The combined type rotary kiln comprises shell portion, driving part, mass transport part and hot spots, shell portion comprise be sleeved on together, at least two concentric rotating cylinders that capacity is identical; Mass transport partly comprise the opening for feed 1 that is positioned at concentric rotating cylinder one end, with discharge port 2 and auxiliary defeated material structure that opening for feed 1 arranges with end or heterodoxy, auxiliary defeated material structure comprises screw-blade 3 and/or the material delivering plate 4 that is positioned on the described concentric rotating cylinder inwall.Hot spots comprises producer gas generator, is passed into opening for feed 1 after the coal gas process pipe-line transportation that produces in the producer gas generator to feed in the mouth 5 with the combustion gas that end arranges.Hot spots also comprises gas cylinder 9, and gas cylinder 9 is positioned at concentric rotating cylinder and arranges with concentric rotating cylinder is concentric.The length of gas cylinder 9 is 2/3 of concentric rotating cylinder length.Driving part comprises that the wheel of the concentric rotating cylinder outside that is located at the diameter maximum reaches the support roller 13 that rotates with 14 under frequency control motor 12 drives.
The concentric rotating cylinder that uses in the present embodiment is three, is respectively that fixed arrangement has the material delivering plate 4 different with the axis angle on the inwall of outer rotaring tube 6, middle rotating cylinder 7 and 8, three concentric rotating cylinders of interior rotating cylinder.In order to reach good frying effect, first powder speed change in three rotating cylinders moves axially.Mobile V-bar is 1m/min, and axial speed is 1.1-1.3m/min in the interior rotating cylinder, and axially speed is 0.8-1m/min in middle rotating cylinder and outer rotaring tube, corresponding, material delivering plate 4 and the axis of interior rotating cylinder 8 are 8
oAngle, middle rotating cylinder 7 is 10 with the material delivering plate 4 of outer rotaring tube 6 with axis
oAngle.
Because this calciner is internally heated type, need not to use indispensable vacuum fan and gas blower in the outer heating equipment of tradition, not only saved coal consumption, and power consumption has been reduced to original 30%, meet the needs that country saves energy and reduce the cost fully.
Claims (8)
1. an alpha+beta mixed type semi-hydrated gypsum powder prepares equipment, and it is characterized in that: described equipment comprises: the steam boiler for generation of steam in the wet steaming step steams the autoclave pressure of operation with finishing to wet; Realize the jaw crusher of gypsum material fragmentation in fragmentation and the abrasive dust step and finish the pulverizing mill that first grinding system is operated; Comprise the combined type rotary kiln of realizing powder frying just and the electrostatic precipitator of realizing electrostatic precipitation in the frying step; The combined type rotary kiln comprises shell portion, driving part, mass transport part and hot spots, described shell portion comprise be sleeved on together, at least two concentric rotating cylinders that capacity is identical; Described mass transport partly comprise the opening for feed that is positioned at described concentric rotating cylinder one end, with discharge port and auxiliary defeated material structure that described opening for feed arranges with end or heterodoxy, described auxiliary defeated material structure comprises screw-blade and/or the material delivering plate that is positioned on the described concentric rotating cylinder inwall.
2. prepare equipment according to the described alpha+beta mixed type of claim 1 semi-hydrated gypsum powder, it is characterized in that: described hot spots comprises producer gas generator, is passed into opening for feed after the coal gas process pipe-line transportation that produces in the described producer gas generator to feed in the mouth with the combustion gas that end arranges.
3. prepare equipment according to the described alpha+beta mixed type of claim 2 semi-hydrated gypsum powder, it is characterized in that: described hot spots also comprises gas cylinder, and described gas cylinder is positioned at described concentric rotating cylinder and arranges with concentric rotating cylinder is concentric.
4. prepare equipment according to the described alpha+beta mixed type of claim 3 semi-hydrated gypsum powder, it is characterized in that: the length of described gas cylinder is 2/3 of concentric rotating cylinder length.
5. prepare equipment according to the described alpha+beta mixed type of claim 1 semi-hydrated gypsum powder, it is characterized in that: described driving part comprises the wheel band of the concentric rotating cylinder outside that is located at the diameter maximum and the support roller that rotates in driven by motor.
6. prepare equipment according to the described alpha+beta mixed type of claim 1 semi-hydrated gypsum powder, it is characterized in that: described concentric rotating cylinder is three, be respectively outer rotaring tube, middle rotating cylinder and interior rotating cylinder, fixed arrangement has the material delivering plate different with the axis angle on the inwall of described three concentric rotating cylinders.
7. prepare equipment according to the described alpha+beta mixed type of claim 6 semi-hydrated gypsum powder, it is characterized in that: material delivering plate and the axis of rotating cylinder are 8 in described
oAngle, material delivering plate and the axis of described middle rotating cylinder and outer rotaring tube are 10
oAngle.
8. prepare equipment according to the described alpha+beta mixed type of claim 1 semi-hydrated gypsum powder, it is characterized in that: described electrostatic precipitator comprises steam and flue gas mixing delivery conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187736 CN203187580U (en) | 2013-04-15 | 2013-04-15 | Alpha+beta mixed type semi-hydrated gypsum powder preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187736 CN203187580U (en) | 2013-04-15 | 2013-04-15 | Alpha+beta mixed type semi-hydrated gypsum powder preparation device |
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| Publication Number | Publication Date |
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| CN203187580U true CN203187580U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187736 Expired - Lifetime CN203187580U (en) | 2013-04-15 | 2013-04-15 | Alpha+beta mixed type semi-hydrated gypsum powder preparation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145356A (en) * | 2013-04-15 | 2013-06-12 | 平邑龙源石膏科技有限公司 | Process and equipment for preparing alpha and beta mixed semi-hydrated gypsum powder |
| CN106277874A (en) * | 2016-07-22 | 2017-01-04 | 湖南昌迅科技环保股份有限公司 | A kind of continuous preparation system of α Gypsum Fibrosum |
-
2013
- 2013-04-15 CN CN 201320187736 patent/CN203187580U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145356A (en) * | 2013-04-15 | 2013-06-12 | 平邑龙源石膏科技有限公司 | Process and equipment for preparing alpha and beta mixed semi-hydrated gypsum powder |
| CN103145356B (en) * | 2013-04-15 | 2014-07-23 | 平邑龙源石膏科技有限公司 | Process and equipment for preparing alpha and beta mixed semi-hydrated gypsum powder |
| CN106277874A (en) * | 2016-07-22 | 2017-01-04 | 湖南昌迅科技环保股份有限公司 | A kind of continuous preparation system of α Gypsum Fibrosum |
| CN106277874B (en) * | 2016-07-22 | 2017-10-17 | 湖南昌迅科技环保股份有限公司 | A kind of continuous preparation system of α gypsum |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |