CN105536419B - Alpha semi-hydrated gypsum production special steam filtering dust-precipitator - Google Patents
Alpha semi-hydrated gypsum production special steam filtering dust-precipitator Download PDFInfo
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- CN105536419B CN105536419B CN201610110264.1A CN201610110264A CN105536419B CN 105536419 B CN105536419 B CN 105536419B CN 201610110264 A CN201610110264 A CN 201610110264A CN 105536419 B CN105536419 B CN 105536419B
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- dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of alpha semi-hydrated gypsum production special steam filtering dust-precipitator, it has barrel-type casing, and case top is provided with annular end cap, and lower housing portion is provided with flue-dust retainer, it is characterized in that:Hanged in housing and inner cover is housed, inner cover top is provided with horizontal baffle, interior cover chamber is divided into the pulse dust cleaning room on top and the bag dust chamber of bottom, some dust collection filter bags are lifted with bag dust chamber, air vent just is provided with to each dust collection filter bag on horizontal baffle, top cover is provided with the top of inner cover, net gas outlet is provided with top cover, compressed air inlet pipe, connection pulse dust cleaning room are provided with outside inner cover；Inner cover bottom is connected for open with the pre- circuit that gathers dust, and dust-laden steam inlet is provided with the top of housing, and housing shells are provided with heating and thermal insulation layer, heating coil is also installed in flue-dust retainer；The present invention can make the dust in steam keep alpha semi-hydrated gypsum form dried recovered, substantially increase product yield, realize net gas discharge, be reclaimed mainly for the production of the powder in alpha semi-hydrated gypsum.
Description
Technical field
The present invention relates to the purification dust collection device in raw material of industry production and processing, specifically a kind of alpha semi-hydrated gypsum production
Special steam filters dust-precipitator.
Background technology
Bag filter is widely used a kind of powder dust collection device in industrial production, and it can both purify discharge gas,
Powder can be collected again, improve product yield.But common bag filter is similar to right in autoclave method production alpha semi-hydrated gypsum system
Gathering dust containing alpha semi-hydrated gypsum powder can not be applicable in steam, because common bag filter collects steam
In alpha semi-hydrated gypsum αsemiwatergypsum can be made quickly to be reduced into two water stones because the internal-external temperature difference of dust-precipitator can produce condensed water
Cream, so as to finished product can not be collected use.
The content of the invention
Collected present invention aim to solve the problems, such as that common bag filter is not applied for alpha semi-hydrated gypsum,
A kind of alpha semi-hydrated gypsum production special steam filtering dust-precipitator is provided.
Concrete scheme of the invention is：A kind of alpha semi-hydrated gypsum production special steam filtering dust-precipitator, with cylinder outer race
Body, case top is provided with annular end cap, and lower housing portion is provided with flue-dust retainer, and flue-dust retainer bottom is provided with powder outlet, it is characterized in that:
Hanged in housing and inner cover is housed, interior cover outer wall is sealed with the soldering of annular end cap endoporus, and there is spacing to constitute with inner walls and gathered dust in advance
Circuit, inner cover top is provided with horizontal baffle, interior cover chamber is divided into the pulse dust cleaning room on top and the bag dust chamber of bottom, in bag
Some dust collection filter bags are lifted with dust chamber, air vent, the top of inner cover is just provided with to each dust collection filter bag on horizontal baffle
Top cover is provided with, net gas outlet is provided with top cover, compressed air inlet pipe, connection pulse dust cleaning room are provided with outside inner cover；Inner cover
Bottom is connected for open with the pre- circuit that gathers dust, and dust-laden steam inlet is provided with the top of housing, and housing shells are provided with heating and thermal insulation
Layer, keeps the temperature in heat-insulation layer consistent with shell body temperature；Heating coil is also equipped with flue-dust retainer.
Pulse valve is installed in the present invention on compressed air inlet pipe.
The heating and thermal insulation layer of heretofore described housing exterior walls is steam heating interlayer or installs around steam-heating pipe；Flue-dust retainer
In heating coil be steam(-)coil, steam heating interlayer or steam-heating pipe, steam(-)coil are and dust-laden steam
The air inlet sharing system vapour source of entrance, keeping temperature is consistent, and is provided with cold in the bottom of heating and thermal insulation layer or steam(-)coil
Solidifying water outlet.
Heretofore described steam heating interlayer or steam-heating pipe are to be arranged in parallel with steam(-)coil, steam inlet
It is respectively provided on steam(-)coil and steam heating interlayer or steam-heating pipe.
Heretofore described dust-laden steam inlet is to form tangential admission with inner walls to arrange.
The present invention designs ingenious, simple structure, employs pulse compression air and deashing is timed to filter bag, and work can
Lean on, operational efficiency is high, particularly have additional heating and thermal insulation layer in hull outside（Pipe）, heating coil is provided with flue-dust retainer to powder
Dirt is dried, and is sent into so as to ensure that the dust collected in housing can be collected with the form of alpha semi-hydrated gypsum dry powder
Product storehouse, substantially increases the yield of system.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the invention.
In figure：1-compressed air inlet pipe, 2-pulse valve, 3-net gas outlet, 4-top cover, 5-pulse dust cleaning room,
6-horizontal baffle, 7-bag dust chamber, 8-dust-laden steam inlet, 9-dust collection filter bag, 10-inner cover, 11-heating and thermal insulation layer,
12-gather dust circuit in advance, 13-housing, 14-flue-dust retainer, 15-heating coil, 16-condensation-water drain, 17-powder outlet,
18-steam inlet, 19-annular end cap.
Specific embodiment
Referring to Fig. 1, the present invention has barrel-type casing 13, and the top of housing 13 is provided with annular end cap 19, and the bottom of housing 13 is provided with
Flue-dust retainer 14, the bottom of flue-dust retainer 14 is provided with powder outlet 17, particularly:Hanged in housing 13 and inner cover 10, the outer wall of inner cover 10 are housed
Sealed with the endoporus soldering of annular end cap 19, and there is spacing to constitute the pre- circuit 12 that gathers dust with the inwall of housing 13, the top of inner cover 10 is provided with
Horizontal baffle 6, the chamber of inner cover 10 is divided into the pulse dust cleaning room 5 on top and the bag dust chamber 7 of bottom, is hung in bag dust chamber 7
Equipped with some dust collection filter bags 9, air vent is just provided with to each dust collection filter bag 9 on horizontal baffle 6, the top of inner cover 10 is provided with top
Lid 4, is provided with net gas outlet 3 on top cover 4, compressed air inlet pipe 1, connection pulse dust cleaning room 5 are provided with outside inner cover 10；Inner cover
10 bottoms connect for open with the pre- circuit 12 that gathers dust, and are provided with outside dust-laden steam inlet 8, housing 13 on the top of housing 13 and are covered with
Heating and thermal insulation layer, keeps the temperature in heating and thermal insulation layer consistent with temperature in housing 13；Heating is also equipped with flue-dust retainer 14
Coil pipe 15.
Pulse valve 2 is preferably installed on compressed air inlet pipe 1 in the present embodiment.
The heating and thermal insulation layer 11 of the preferred outer wall of the housing 13 is steam heating interlayer or installs around steam in the present embodiment
Heating tube, can also be other heating and thermal insulations layer such as electrothermal tube certainly；Heating coil 15 in flue-dust retainer 14 is steam heating dish
Pipe, steam heating interlayer or steam-heating pipe, steam(-)coil are the air inlet sharing system vapour sources with dust-laden steam inlet 8,
Keeping temperature is consistent, and is provided with condensate drain outlet 16 in the bottom of heating and thermal insulation layer 11.
The preferred steam heating interlayer 11 is to be arranged in parallel with steam(-)coil 15 in the present embodiment, in heating dish
Steam inlet 18 is equipped with pipe 15 and steam heating interlayer 11.
The preferred dust-laden steam inlet 8 is to form tangential admission with the inwall of housing 13 to arrange in the present embodiment.
Operation principle of the invention is：Referring to Fig. 1, steamed from dust-laden using the dried dust-containing water steam tail gas of vapour system
The tangent line of vapour entrance 8 enters the pre- circuit 12 that gathers dust, and air-flow is helically moved downward, and the relatively meal dirt during this in air-flow is in centrifugation
Power, under mutual collision effect, drops in flue-dust retainer 14 by gravity, which decreases the dust content into sock filtration, rises
To the pre- effect of gathering dust.
Air-flow after gathering dust in advance, the outside of each dust collection filter bag 9 indoors is distributed from the bottom even of bag dust chamber 7, is being followed
Under the effect of ring booster compressor, air-flow penetrates the discharge purified gas of dust collection filter bag 9, and dust is blocked on the outer surface of dust collection filter bag 9, from
And reach the effect of udst separation steam.
With the continuity of working time, the dust of the outside of dust collection filter bag 9 attachment will be more and more, and resistance can be continuously increased；
For guarantee system is normally run, the attachment dust on filter bag need to be just removed（That is deashing）.It is enhancing ash-removal effect, using offline,
Compressed air purge mode, i.e., by pulse valve 2 from compressed air inlet pipe, pulse press-in pressure air makes dust collection filter bag 9
The dust of outside falls to being collected.
For avoid material in overheating steam drying process it is possible that the situation for not parching completely or condensing, it is special in collection
Heating coil 15 is set in ash bucket and heating, temperature keeping layer 11 continues contact drying material, it is ensured that the normal operation of dust-precipitator and product matter
Amount.Produced condensed water is discharged to condensation pond from the condensation-water drain 16 of the bottom of flue-dust retainer 14 after steam heat-exchanging, collection
Dust is then sent to finished product warehouse by the discharge of 14 bottom powder outlet of flue-dust retainer 17.
Claims (3)
1. alpha semi-hydrated gypsum production special steam filters dust-precipitator, and with barrel-type casing, case top is provided with annular end cap, shell
Body bottom is provided with flue-dust retainer, and flue-dust retainer bottom is provided with powder outlet, it is characterized in that:Hanged in housing and inner cover, interior cover outer wall are housed
Sealed with annular end cap inner hole welding of rapid cooling, and there is spacing to constitute the pre- circuit that gathers dust with inner walls, inner cover top is provided with horizontal baffle,
Interior cover chamber is divided into the pulse dust cleaning room on top and the bag dust chamber of bottom, some filters of gathering dust are lifted with bag dust chamber
Bag, just air vent is provided with horizontal baffle to each dust collection filter bag, and top cover is provided with the top of inner cover, net gas is provided with top cover and is gone out
Mouthful, compressed air inlet pipe is provided with outside inner cover, pulse valve is installed on compressed air inlet pipe, connect pulse dust cleaning
Room；Inner cover bottom connects for open with the pre- circuit that gathers dust, and be provided with dust-laden steam inlet on the top of housing connects with the pre- circuit that gathers dust
Logical, housing shells are provided with heating and thermal insulation layer, keep the temperature in heat-insulation layer consistent with shell body temperature；Also installed in flue-dust retainer
There is heating coil；The heating and thermal insulation layer of the housing exterior walls is steam heating interlayer or installs around steam-heating pipe；In flue-dust retainer
Heating coil is steam(-)coil, and steam heating interlayer or steam-heating pipe, steam(-)coil are and dust-laden steam inlet
Air inlet sharing system vapour source, keeping temperature is consistent, and is provided with condensed water row in the bottom of heating and thermal insulation layer or steam-heating pipe
Put mouth.
2. alpha semi-hydrated gypsum production special steam according to claim 1 filters dust-precipitator, it is characterized in that：The steam
Heating interlayer or steam-heating pipe are to be arranged in parallel with steam(-)coil.
3. alpha semi-hydrated gypsum production special steam according to claim 2 filters dust-precipitator, it is characterized in that：The dust-laden
Steam inlet is to form tangential admission with inner walls to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110264.1A CN105536419B (en) | 2016-02-29 | 2016-02-29 | Alpha semi-hydrated gypsum production special steam filtering dust-precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110264.1A CN105536419B (en) | 2016-02-29 | 2016-02-29 | Alpha semi-hydrated gypsum production special steam filtering dust-precipitator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105536419A CN105536419A (en) | 2016-05-04 |
| CN105536419B true CN105536419B (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610110264.1A Active CN105536419B (en) | 2016-02-29 | 2016-02-29 | Alpha semi-hydrated gypsum production special steam filtering dust-precipitator |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347698A (en) * | 2008-09-05 | 2009-01-21 | 自贡硬质合金有限责任公司 | Method for recycling tungsten oxide powder dust from flue gas of calcining ammonium paratungstate and recovering device |
| CN202516427U (en) * | 2012-04-13 | 2012-11-07 | 汝州市恒生科技发展有限公司 | Main bag filter for producing carbon black |
| CN104307265A (en) * | 2014-10-19 | 2015-01-28 | 耒阳市诚松有色金属再生有限公司 | Fume dust collection tank |
| CN205386388U (en) * | 2016-02-29 | 2016-07-20 | 湖北金炉节能股份有限公司 | Special steam filtration dust collector of alpha type plaster of paris production |
-
2016
- 2016-02-29 CN CN201610110264.1A patent/CN105536419B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347698A (en) * | 2008-09-05 | 2009-01-21 | 自贡硬质合金有限责任公司 | Method for recycling tungsten oxide powder dust from flue gas of calcining ammonium paratungstate and recovering device |
| CN202516427U (en) * | 2012-04-13 | 2012-11-07 | 汝州市恒生科技发展有限公司 | Main bag filter for producing carbon black |
| CN104307265A (en) * | 2014-10-19 | 2015-01-28 | 耒阳市诚松有色金属再生有限公司 | Fume dust collection tank |
| CN205386388U (en) * | 2016-02-29 | 2016-07-20 | 湖北金炉节能股份有限公司 | Special steam filtration dust collector of alpha type plaster of paris production |
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| Publication number | Publication date |
|---|---|
| CN105536419A (en) | 2016-05-04 |
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