CN104843759A - Technology for dry method continuous production of high strength alpha gypsum, and apparatus thereof - Google Patents
Technology for dry method continuous production of high strength alpha gypsum, and apparatus thereof Download PDFInfo
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- CN104843759A CN104843759A CN201510156701.9A CN201510156701A CN104843759A CN 104843759 A CN104843759 A CN 104843759A CN 201510156701 A CN201510156701 A CN 201510156701A CN 104843759 A CN104843759 A CN 104843759A
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- reactor
- spool
- high pressure
- feeding machine
- stock chest
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 26
- 239000010440 gypsum Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title abstract description 4
- 238000010924 continuous production Methods 0.000 title abstract 3
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 210000000038 chest Anatomy 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 38
- 208000028659 discharge Diseases 0.000 claims description 19
- 239000013078 crystal Substances 0.000 claims description 9
- 150000004683 dihydrates Chemical class 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- 206010008469 Chest discomfort Diseases 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a technology for dry method continuous production of high strength alpha gypsum, and an apparatus thereof. The apparatus comprises a reaction kettle and a high pressure air lock feeder positioned in front of the reaction kettle, and the high pressure air lock feeder is used to guarantee the pressure in the reaction kettle in order to finally realize the continuous production of the high strength alpha gypsum. Compared with the prior art, the technology has the advantages of continuousness and quality stability guaranteeing by realizing continuous quantitative feeding and continuous discharging while guaranteeing the pressure in the reaction kettle.
Description
Technical field
The invention relates to a kind of production equipment and technique, especially a kind of dry method continuous seepage alpha high strength gypsum technique and device.
Background technology
Alpha's high strength gypsum produced by existing reaction vessel with pressure is all that one pot of pot is interrupted and produces, because when pan feeding and discharging, the pressure in reaction vessel can be released, and causes the large and environmental pollution of quality fluctuation, labour intensity.
Summary of the invention
The object of the invention is to provide a kind of dry method continuous seepage alpha high strength gypsum technique and device, and it adopts high pressure to lock wind feeding machine, realizes the feed under sealing load and discharging; The processing parameters such as continuous feeding and discharging, stable pressure, temperature realize suitability for industrialized production, cleaner production while ensureing constant product quality.
For achieving the above object, the invention is achieved by the following measures:
A kind of high pressure lock wind feeding machine, the front end of reactor is provided with high pressure lock wind feeding machine, described high pressure lock wind feeding machine comprises columned spool, spool rotates centered by its axle center, being provided with the valve seat be sealed and matched with spool outer wall outside spool, spool outer wall being interval with the indent stock chest for storing material; Valve seat top and bottom are respectively equipped with feeding mouth and discharge port, and wherein feeding mouth is positioned at the upper end of spool, and storing mouth is positioned at the lower end of spool; The trim coordinated with valve base inner wall on spool between adjacent two stock chests is less than the inner ring distance of valve base inner wall feeding mouth and discharge port, and when making valve core rotation, feeding mouth and discharge port not conducting all the time, ensure that reacting kettle inner pressure is stablized.
Preferably, described valve seat is provided with relief hole, described relief hole be in stock chest conducting with upper/lower positions: the backward upper rotation of stock chest discharging and the lower end of stock chest are sealed and matched with valve base inner wall after screwing out discharge port.
Preferably, valve seat is provided with air-pressure duct, the air outlet of air-pressure duct towards valve seat discharge port or be in just at the stock chest of discharging.
Preferably, described stock chest annular array centered by the axis of spool is arranged.
An equipment for dry method continuous seepage alpha high strength gypsum, comprises reactor, and the ingress on reactor is provided with high pressure lock wind feeding machine; Heating unit and whipping appts is provided with in reactor, the lower end of reactor is provided with discharge nozzle, discharge nozzle upwards extends, have material level poor with opening for feed, and the end of discharge nozzle connects the high pressure lock wind feeding machine of the second stage, and the high pressure lock wind feeding machine of material through the second stage reacting complete leaves reactor.
Preferably, reactor is provided with safety valve, material-level detecting device, crystal modifier adding set, thermometer, tensimeter; The outer wall of reactor is provided with heating and attemperator; The outlet of reactor discharge nozzle connects high pressure air valve, quality homogenizer and annular grinder successively.
A technique for dry method continuous seepage alpha high strength gypsum,
A, will continuously send into the import high pressure lock wind feeding machine of reactor after dihydrate gypsum or the metering of the industry by-product gypsum after drying;
B, enter the rotation along with spool of material after high pressure lock wind feeding machine with splicing---sealing---discharging---sealing---splicing ... form material is sent into reactor;
C, dihydrate gypsum material in reactor, thermal dehydration, in reactor: pressure 0.2-0.6Mpa, temperature 130-150 degree, residence time 30-50min, impels the conversion of gypsum crystal;
The material of the end outlet of D, discharge nozzle carries out stable crystal form and phase composition homogenizing by being admitted to quality homogenizer after the high pressure air valve of the second stage of discharge end;
E, the material after homogenizing is sent into annular grinder grinding, reach product requirement.
Preferably, air-pressure duct blows pressurized gas towards the stock chest of discharging or discharge port.
Preferably, in Spool rotating process, open relief hole, relief hole be transferred to stock chest in it and communicate, stock chest pressure release.
Principle of work and the beneficial effect of the invention show:
The invention have employed new feeding machine---and high pressure lock wind feeding machine, realizes the charging under air-proof condition and discharging.
This high pressure lock wind feeding machine mainly comprises spool and valve seat, and spool adopts the structure of cylindrical rotary, and the outer wall of spool coordinates with the inner wall sealing of valve seat, forms trim.
Valve body is provided with the stock chest of indent, when in rotary course, the stock chest of indent is for storing material, after being rotated further, spool between two adjacent stock chests and valve base inner wall seal, state always non-conduction between the opening for feed of such valve seat upper end and discharge port, is convenient to maintain reacting kettle inner pressure.
Because have pressure in reactor, therefore the gas with pressure in reactor can enter into feeding mouth along with the rotation of spool by discharge port, after having pressure in stock chest, the material (especially when material ratio is compared with thickness) entered by opening for feed well may cannot fall into stock chest at this pressure; In order to solve the above problems, the invention arranges a relief hole on valve seat, relief hole is in upper/lower positions: when Spool rotating, when after stock chest whiz storing mouth, after the lower end of stock chest is in sealing with spool inwall again, stock chest is communicated with relief hole, is discharged by the pressure in stock chest.
Also be because have pressure in reactor, there is material and to fall insufficient or not smooth shortcoming, valve seat also has air-pressure duct, the air outlet of air-pressure duct towards valve seat discharge port or be in just at the stock chest of discharging.
Discharge nozzle is positioned at reactor lower end and forms the structure of communicating vessels with reactor, and on the one hand, discharge port is positioned at below, and the material for top reserves the time of reaction, and the material making material drop into below has reacted complete; Meanwhile, because this reactor is vertical setting, be pressed gas above pressurized vessel, as power, material complete for reaction extruded reactor by pressed gas, discharge reactor by the high pressure lock wind feeding machine of discharging, thus realize continuous prodution.
Accompanying drawing explanation
Fig. 1 is the invention high pressure lock wind feeding machine structural representation;
Fig. 2 is reactor structural representation.
Embodiment
The correlation technique content do not addressed below all can adopt or use for reference prior art.
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
An equipment for dry method continuous seepage alpha high strength gypsum, comprises reactor, and the entrance on reactor, exit are provided with high pressure lock wind feeding machine.
As shown in Figure 1, comprise columned spool 1, spool 1 rotates high pressure lock wind feeding machine centered by its axle center, spool 1 arranged transversely, namely the axial direction due of spool 1 is positioned at horizontal plane, and be provided with the valve seat 2 be sealed and matched with spool outer wall outside spool 1, spool 1 is set in valve seat 2.
Spool 1 is interval with the stock chest 11 of the indent for carrying and store material; The stock chest 11 of the present embodiment with cylindrical spool 1 axially for center of circle annular array is arranged, and stock chest 11 extends along the horizontal direction of cylindrical spool 1, simultaneously, for the ease of processing and storing material to greatest extent, the cross section of stock chest can be designed and become similar fan-shaped structure (must ensure the intensity of spool, therefore stock chest cross section is now without the axle center of cylindrical spool); It is the seal area 12 coordinated with valve seat between adjacent two stock chests.
Valve seat 2 top and bottom are respectively equipped with feeding mouth 4 and discharge port 5; On spool 1 between adjacent two stock chests 11, trim that coordinate with valve base inner wall is less than the inner ring distance of valve base inner wall feeding mouth and discharge port, described inner ring distance is the circular arc direction along valve base inner wall on valve seat, like this when valve core rotation, single stock chest all the time can not simultaneously conducting feeding mouth and discharge port, prevents string pressure.
Described valve seat is provided with relief hole 4, described relief hole 4 and the stock chest conducting be in upper/lower positions: after stock chest discharging, upwards rotates and the lower end of stock chest is sealed and matched with valve base inner wall after whiz discharge port; Like this when relief hole communicates with the stock chest of above-mentioned position, this stock chest does not communicate with discharge port.
Valve seat 2 is provided with air-pressure duct 6, the air outlet of air-pressure duct 6 towards valve seat 2 discharge port 5 or be in just at the stock chest of discharging.
Shown in Fig. 2, be communicated with reactor 20 and be provided with safety valve 21, material-level detecting device 22, crystal modifier adding set, thermometer 23, tensimeter 24; This material-level measure 22 device adopts radar level gauge.
The import of reactor 20 is connected with first step high pressure lock wind feeding machine 28, and be provided with whipping appts 25 in the middle part of reactor 20, whipping appts 25 is by the driven by motor of reactor upper end.The lower end of reactor 20 is provided with discharge nozzle 26, and discharge nozzle 26 extends from bottom to top, thus formed communicating vessels and material level poor, by pressure, reacting final product is discharged; The material gone out through discharge nozzle successively through the second stage high pressure lock wind feeding machine 27 of discharging, quality homogenizer and annular grinder laggard enter feed bin.
The outer wall of reactor is provided with attemperator, such as can adopt the pressure steam of pipe network: P=0.6 ~ 1.3MPa, temperature 180--250 ° C.This pressure steam can also simultaneously for whipping appts heats, and the material before making to enter reactor carries out preheating, also can with thermal oil as thermal source.
During use:
A, will continuously send into the import high pressure lock wind feeding machine of reactor after dihydrate gypsum or the metering of the industry by-product gypsum after drying;
B, enter the rotation along with spool of material after high pressure lock wind feeding machine with splicing---sealing---discharging---sealing---splicing ... form material is sent into reactor; Air-pressure duct blows pressurized gas towards the stock chest of discharging or discharge port; Relief hole be transferred to stock chest in it and communicate, stock chest pressure release.
C, material in reactor, thermal dehydration, in reactor: pressure 0.2-0.6Mpa, temperature 130-150 degree, residence time 30-50min, impels the conversion of gypsum crystal;
The material of the end outlet of D, discharge nozzle carries out stable crystal form and phase composition homogenizing by being admitted to quality homogenizer after the high pressure air valve of the second stage of discharge end;
E, the material after homogenizing is sent into annular grinder grinding, reach product requirement.
The above is only the preferred implementation of the application, those skilled in the art is understood or realizes the application.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a high pressure lock wind feeding machine, it is characterized in that, the front end of reactor is provided with high pressure lock wind feeding machine, described high pressure lock wind feeding machine comprises columned spool, spool rotates centered by its axle center, being provided with the valve seat be sealed and matched with spool outer wall outside spool, spool outer wall being interval with the indent stock chest for storing material; Valve seat top and bottom are respectively equipped with feeding mouth and discharge port, and wherein feeding mouth is positioned at the upper end of spool, and storing mouth is positioned at the lower end of spool; The trim coordinated with valve base inner wall on spool between adjacent two stock chests is less than the inner ring distance of valve base inner wall feeding mouth and discharge port, and when making valve core rotation, feeding mouth and discharge port not conducting all the time, ensure that reacting kettle inner pressure is stablized.
2. high pressure lock wind feeding machine according to claim 1, it is characterized in that: described valve seat is provided with relief hole, described relief hole be in stock chest conducting with upper/lower positions: the backward upper rotation of stock chest discharging and the lower end of stock chest are sealed and matched with valve base inner wall after screwing out discharge port.
3. high pressure according to claim 1 lock wind feeding machine, is characterized in that: valve seat is provided with air-pressure duct, the air outlet of air-pressure duct towards valve seat discharge port or be in just at the stock chest of discharging.
4. the high pressure lock wind feeding machine according to claim 1 or 2 or 3 any one, is characterized in that: described stock chest annular array centered by the axis of spool is arranged.
5. an equipment for dry method continuous seepage alpha high strength gypsum, comprises reactor, it is characterized in that; Ingress on reactor is provided with the high pressure lock wind feeding machine described in claim 1-3 any one; Heating unit and whipping appts is provided with in reactor, the lower end of reactor is provided with discharge nozzle, discharge nozzle upwards extends, have material level poor with opening for feed, the end of discharge nozzle connects the lock of the high pressure described in the claim 1-3 any one wind feeding machine of the second stage, and the high pressure lock wind feeding machine of material through the second stage reacting complete leaves reactor.
6. the equipment of a kind of dry method continuous seepage alpha high strength gypsum according to claim 5, is characterized in that; Reactor is provided with safety valve, material-level detecting device, crystal modifier adding set, thermometer, tensimeter; The outer wall of reactor is provided with heating and attemperator; The outlet of reactor discharge nozzle connects high pressure air valve, quality homogenizer and annular grinder successively.
7. a technique for dry method continuous seepage alpha high strength gypsum, is characterized in that;
A, will continuously send into the import high pressure lock wind feeding machine of reactor after dihydrate gypsum or the metering of the industry by-product gypsum after drying;
B, enter the rotation along with spool of material after high pressure lock wind feeding machine with splicing---sealing---discharging---sealing---splicing ... form material is sent into reactor;
C, dihydrate gypsum material in reactor, thermal dehydration, in reactor: pressure 0.2-0.6Mpa, temperature 130-150 degree, residence time 30-50min, impels the conversion of gypsum crystal;
The material of the end outlet of D, discharge nozzle carries out stable crystal form and phase composition homogenizing by being admitted to quality homogenizer after the high pressure air valve of the second stage of discharge end;
E, the material after homogenizing is sent into annular grinder grinding, reach product requirement.
8. the technique of dry method continuous seepage alpha high strength gypsum according to claim 7, is characterized in that; Air-pressure duct blows pressurized gas towards the stock chest of discharging or discharge port.
9. the technique of dry method continuous seepage alpha high strength gypsum according to claim 7, is characterized in that;
In Spool rotating process, open relief hole, relief hole be transferred to stock chest in it and communicate, stock chest pressure release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156701.9A CN104843759B (en) | 2015-04-03 | 2015-04-03 | Technology for dry method continuous production of high strength alpha gypsum, and apparatus thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156701.9A CN104843759B (en) | 2015-04-03 | 2015-04-03 | Technology for dry method continuous production of high strength alpha gypsum, and apparatus thereof |
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| CN104843759A true CN104843759A (en) | 2015-08-19 |
| CN104843759B CN104843759B (en) | 2017-02-22 |
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| CN102745923A (en) * | 2011-04-22 | 2012-10-24 | 北京建筑材料科学研究总院有限公司 | Process for producing alpha type semi-hydrated gypsum by using industrial by-product gypsum |
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2015
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| CN104843759B (en) | 2017-02-22 |
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Effective date of registration: 20190313 Address after: 271000 Tai'an Tai'an Dawenkou Gypsum Industrial Park, Tai'an City, Shandong Province Patentee after: Tai'an Jiepu Gypsum Technology Co., Ltd. Address before: 030025 Building 7, Jinci Dry Healing Hospital, Taiyuan City, Shanxi Province Co-patentee before: Zhao Xingyin Patentee before: Zhao Yunlong |