CN201553687U - Gypsum rotary kiln provided with fume and dust purifying device - Google Patents
Gypsum rotary kiln provided with fume and dust purifying device Download PDFInfo
- Publication number
- CN201553687U CN201553687U CN2009202731788U CN200920273178U CN201553687U CN 201553687 U CN201553687 U CN 201553687U CN 2009202731788 U CN2009202731788 U CN 2009202731788U CN 200920273178 U CN200920273178 U CN 200920273178U CN 201553687 U CN201553687 U CN 201553687U
- Authority
- CN
- China
- Prior art keywords
- dust
- gypsum
- flue gas
- rotary kiln
- flue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to a gypsum rotary kiln provided with a fume and dust purifying device, comprising the gypsum rotary kiln which mainly consists of a kiln furnace (1), a rotary pot (2) and a chimney (3); and the gypsum rotary kiln is also provided with the fume and dust purifying device utilizing gypsum dehydration steam and flue gas, and the fume and dust purifying device consists of a group of flue gas excess heat pipes (4), a flue gas channel (5), a steam and flue gas mixed gas channel (6) and an atomizing dust removing chamber (7). The gypsum rotary kiln comprehensively utilizes the action mechanisms of atomizing wet dust removal and gravity mechanical dust removal, fully uses the atomizing effect and the self-power of dehydration steam, and does not need an external fan, thus improving the dust removing efficiency and reducing the production cost. In addition, the flue gas excess heat inside the flue gas excess heat pipes can be absorbed by gypsum powder material inside the rotary pot through the pipe wall so as to be utilized again.
Description
Technical field
The utility model 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.
The utility model content
The purpose of this utility model 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 utility model comprises 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.
The utility model has the advantages that: 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 the utility model structural representation.
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 steam of revolution pot 2 goes out 2-1 (the opening for feed place of revolution pot) and 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 |
|---|---|---|---|
| CN2009202731788U CN201553687U (en) | 2009-11-24 | 2009-11-24 | Gypsum rotary kiln provided with fume and dust purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202731788U CN201553687U (en) | 2009-11-24 | 2009-11-24 | Gypsum rotary kiln provided with fume and dust purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553687U true CN201553687U (en) | 2010-08-18 |
Family
ID=42613361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202731788U Expired - Lifetime CN201553687U (en) | 2009-11-24 | 2009-11-24 | Gypsum rotary kiln provided with fume and dust purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201553687U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717211B (en) * | 2009-11-24 | 2011-12-14 | 杨智勇 | Gypsum rotary kiln with smoke and powder purifying device |
| CN107619207A (en) * | 2016-07-15 | 2018-01-23 | 平邑开元新型建材有限公司 | gypsum steam calcining furnace |
-
2009
- 2009-11-24 CN CN2009202731788U patent/CN201553687U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717211B (en) * | 2009-11-24 | 2011-12-14 | 杨智勇 | Gypsum rotary kiln with smoke and powder purifying device |
| CN107619207A (en) * | 2016-07-15 | 2018-01-23 | 平邑开元新型建材有限公司 | gypsum steam calcining furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100818 Effective date of abandoning: 20091124 |