CN101717211B - Gypsum rotary kiln with smoke and powder purifying device - Google Patents
Gypsum rotary kiln with smoke and powder purifying device Download PDFInfo
- Publication number
- CN101717211B CN101717211B CN2009102461641A CN200910246164A CN101717211B CN 101717211 B CN101717211 B CN 101717211B CN 2009102461641 A CN2009102461641 A CN 2009102461641A CN 200910246164 A CN200910246164 A CN 200910246164A CN 101717211 B CN101717211 B CN 101717211B
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- smoke
- gypsum
- steam
- flue
- dust
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- Muffle Furnaces And Rotary Kilns (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention relates to a gypsum rotary kiln with a smoke and powder purifying device. The gypsum rotary kiln mainly comprises a kiln (1), a rotary pan (2), a chimney (3) and a smoke and powder purifying device, wherein the smoke and powder purifying device dehydrates steam and smoke by gypsum and comprises a group of smoke residual heat pipes (4), a smoke passage (5), a steam and smoke mixing passage (6) and an atomization dust removing chamber (7). The gypsum rotary kiln comprehensively utilizes an atomization wet type dust removing and gravity mechanical dust removing function mechanism, fully utilizes the atomizing effect and the power of the dehydrated steam, improves the dust removing efficiency and reduces the production cost without any external fan. In addition, the smoke residual heat in the smoke residual heat pipes can be absorbed by gypsum powder in the rotary pan by pipe walls to be recycled.
Description
Technical field
The present invention relates to the gypsum rotary kiln field.
Background technology
Plaster stone or industry by-product gypsum exist with the sulfate dihydrate calcium form, and two crystal water are arranged in its molecular formula, and only sloughing a hypocrystalline water generation semi-hydrated gypsum just has gelling properties.The process of sloughing crystal water is the gypsum calcination.At present, in the terra alba production process, when terra alba being calcined by gypsum rotary kiln, generation has steam (deriving from gypsum dehydration) and flue gas (deriving from the combustion chamber), and steam wherein by the steam smoke stack emission, contains dust from vapour outlet (opening for feed of revolution pot) in the steam, because the dust in the steam can not use the sack cleaner dedusting because of gelling characteristic, contaminate environment is directly discharged not to the steam dust by most of factory; Flue gas wherein contains flue dust, enters in the atmosphere after handling by the spray water cleaning apparatus, and cleaning apparatus must use blower fan, needs to consume a large amount of energy.Existing dust removal installation construction cost and working cost are all than higher.
Summary of the invention
Purpose of the present invention is exactly at the above-mentioned deficiency of existing gypsum rotary kiln, and a kind of gypsum rotary kiln that purifies flue dust and dust device that has is provided.
The present invention includes gypsum rotary kiln, gypsum rotary kiln mainly is made up of kiln, revolution pot and chimney, it utilizes gypsum dehydration steam and gas cleaning flue dust and dust device in addition, and this installs by one group of fume afterheat pipe, gas flue, steam and flue gas mixed airway, and the nebulization dust chamber is formed; One group of fume afterheat pipe is installed in respectively in the revolution pot, the gas approach of one group of fume afterheat pipe communicates with the combustion heating chamber of kiln respectively, exhanst gas outlet communicates with steam and flue gas mixed airway by gas flue respectively, the vapour outlet of revolution pot communicates with steam and flue gas mixed airway by air flue, the outlet of flue gas mixed airway communicates with the nebulization dust chamber, the air flue outlet of nebulization dust chamber communicates with chimney, the nebulization dust chamber is positioned at the kiln top, chimney is positioned at top, nebulization dust chamber, and the nebulization dust chamber is provided with dust-exhausting port.
Advantage of the present invention is: steam and flue gas enter the nebulization dust chamber through mixed airway, indoor at nebulization dust, flue dust dust in steam and the flue gas by inertial impaction, contact mechanism of action such as detention, humidification cohesion and captured by drop, become big gradually, fall under gravity into nebulization dust chamber inclination column plate bottom, dust-exhausting port is regularly discharged through the nebulization dust chamber, and flue dust is effective, can make the flue dust qualified discharge.This gypsum rotary kiln has fully utilized the atomizing wet dust removal and the gravity dust removal with machine mechanism of action, makes full use of the atomizing effect and self power of dewatered steam, does not need the external application blower fan, has improved efficiency of dust collection, has reduced production cost.In addition, the fume afterheat in the fume afterheat pipe can be absorbed by the gypsum powder in the revolution pot by tube wall and be utilized once more.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, gypsum rotary kiln mainly is made up of kiln 1, revolution pot 2 and chimney 3, and revolution pot 2 is installed in the 1-1 of combustion heating chamber of kiln 1.One group of (4-6 root) fume afterheat pipe 4 is installed in respectively in the revolution pot 2, pot 2 peripheral uniform distribution are changeed in wraparound, the gas approach of one group of fume afterheat pipe 4 (4-1) passes revolution pot body and communicates with the 1-1 of combustion heating chamber of kiln 1 respectively, exhanst gas outlet (4-2) passes revolution pot body and communicates with steam and flue gas mixed airway 6 by gas flue 5 (being made of double-deck sandwich wall) respectively, the vapour outlet 2-1 of revolution pot 2 (the opening for feed place of revolution pot) communicates with steam and flue gas mixed airway 6 by air flue, the outlet 6-1 of flue gas mixed airway 6 communicates with nebulization dust chamber 7, nebulization dust chamber 7 air flues outlet 7-1 communicates with chimney 3, nebulization dust chamber 7 is positioned at kiln 1 top, chimney 3 is positioned at 7 tops, nebulization dust chamber, and 7 bottoms, nebulization dust chamber are provided with dust-exhausting port 7-2.
Claims (1)
1. have the gypsum rotary kiln that purifies flue dust and dust device, it comprises gypsum rotary kiln, gypsum rotary kiln mainly is made up of kiln (1), revolution pot (2) and chimney (3), it is characterized in that it utilizes gypsum dehydration steam and gas cleaning flue dust and dust device in addition, this device is by one group of fume afterheat pipe (4), gas flue (5), steam and flue gas mixed airway (6), and nebulization dust chamber (7) are formed; One group of fume afterheat pipe (4) is installed in respectively in the revolution pot (2), the gas approach (4-1) of one group of fume afterheat pipe (4) communicates with the combustion heating chamber (1-1) of kiln (1) respectively, exhanst gas outlet (4-2) communicates with steam and flue gas mixed airway (6) by gas flue (5) respectively, the vapour outlet (2-1) of revolution pot (2) communicates with steam and flue gas mixed airway (6) by air flue, the outlet (6-1) of flue gas mixed airway (6) communicates with nebulization dust chamber (7), nebulization dust chamber (7) air flue outlet (7-1) communicates with chimney (3), nebulization dust chamber (7) is positioned at kiln (1) top, chimney (3) is positioned at top, nebulization dust chamber (7), and nebulization dust chamber (7) bottom is provided with dust-exhausting port (7-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102461641A CN101717211B (en) | 2009-11-24 | 2009-11-24 | Gypsum rotary kiln with smoke and powder purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102461641A CN101717211B (en) | 2009-11-24 | 2009-11-24 | Gypsum rotary kiln with smoke and powder purifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101717211A CN101717211A (en) | 2010-06-02 |
| CN101717211B true CN101717211B (en) | 2011-12-14 |
Family
ID=42431858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102461641A Expired - Fee Related CN101717211B (en) | 2009-11-24 | 2009-11-24 | Gypsum rotary kiln with smoke and powder purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101717211B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225471Y (en) * | 1994-08-02 | 1996-04-24 | 何宜业 | High efficiency energy saving gypsum revolving calcining kiln |
| CN201233166Y (en) * | 2008-06-27 | 2009-05-06 | 成都市新都化工股份有限公司 | Boil air heater |
| CN201553687U (en) * | 2009-11-24 | 2010-08-18 | 杨智勇 | Gypsum rotary kiln provided with fume and dust purifying device |
-
2009
- 2009-11-24 CN CN2009102461641A patent/CN101717211B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225471Y (en) * | 1994-08-02 | 1996-04-24 | 何宜业 | High efficiency energy saving gypsum revolving calcining kiln |
| CN201233166Y (en) * | 2008-06-27 | 2009-05-06 | 成都市新都化工股份有限公司 | Boil air heater |
| CN201553687U (en) * | 2009-11-24 | 2010-08-18 | 杨智勇 | Gypsum rotary kiln provided with fume and dust purifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101717211A (en) | 2010-06-02 |
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| PB01 | Publication | ||
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Granted publication date: 20111214 Termination date: 20131124 |