CN2300065Y - Water heating burning-in kiln - Google Patents
Water heating burning-in kiln Download PDFInfo
- Publication number
- CN2300065Y CN2300065Y CN97237256U CN97237256U CN2300065Y CN 2300065 Y CN2300065 Y CN 2300065Y CN 97237256 U CN97237256 U CN 97237256U CN 97237256 U CN97237256 U CN 97237256U CN 2300065 Y CN2300065 Y CN 2300065Y
- Authority
- CN
- China
- Prior art keywords
- kiln
- firing chamber
- utility
- model
- chambers
- 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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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Furnace Details (AREA)
Abstract
The utility model relates to a water heating roasting kiln used for utilizing industrial waste slag for making bricks, comprising a kiln body. The utility model is characterized in that the kiln body is divided into at least four sections of kiln chambers, wherein, the kiln chambers on both ends of the kiln body are end kilns, the kiln chambers on the middle part of the kiln body are provided with separating walls, the kiln chambers are connected with each other by control brakes, and the top of each kiln chamber is provided with a coal putting hole and a steam branch pipeline which is connected with a steam main pipeline by a steam valve. The utility model controls the atmosphere of the kiln chambers by kiln body segmentation, the control brakes between the kiln chambers and the steam valve, and the utility model causes hexavalent chrome in chromium slag to be changed into trivalent chromium and realizes chromium slag detoxification. The whole kiln is in closed and circulating state, the heat energy of the utility model can be fully utilized, and the utility model is also an energy saving kiln.
Description
The utility model relates to a kind of thermal kiln furnace, particularly a kind ofly is used to utilize industrial residue to carry out the hydrothermal calcine kiln of brickmaking.
At present, produce the thermal kiln furnace of sintered article both at home and abroad, what can form that scale and benefit produce only has an annular kiln, tunnel cave, and the kiln body of these two kinds of kilns is a passage, the calcination atmosphere of the strong oxidizing flame of a kind of high temperature can only be provided, yet utilizing industrial residue particularly in the chromium slag brickmaking technology process, firing of its slag not only needs strong oxidizing flame atmosphere, also needs strong reducing flame atmosphere and hydrothermal calcine atmosphere, like this, annular kiln and tunnel cave can not satisfy the technological requirement of chromium slag brickmaking.
The purpose of this utility model is to provide a kind of hydrothermal calcine kiln that can regulate calcination atmosphere.
The utility model is achieved in that a kind of hydrothermal calcine kiln, and it comprises the kiln body, it is characterized in that: described kiln body is divided into four sections firing chambers at least, wherein the firing chamber at two ends is the end kiln, the middle part is provided with through a wall in the firing chamber, under isometric firing chamber situation, has prolonged fiery road like this; Connect through the regulation and control lock between the firing chamber; Each top, firing chamber is equipped with coal feeding hole, steam branch pipe road, and the steam branch pipe road is connected with the main steam header road through steam valve.
If will cool off the brick body rapidly, can on Yao Ding, kiln wall, heat exchanging chamber be set.
To fire situation in order grasping at any time, to be convenient to technology controlling and process, can on the kiln top, establish thermometer hole and pressure tap.
In order to improve output and technology is better controlled, this hydrothermal calcine kiln can also become the identical firing chamber, middle part of double increase structure between two end kilns.
The chromium slag is through overbaking phase → oxidizing flame roasting phase → reducing flame roasting phase → hydrothermal calcine phase → cooling kiln discharge, its Cr VI just can be converted into water insoluble and be insoluble in sour trivalent chromium, realize detoxifcation, the utility model is with the segmentation of kiln body, firing chamber's atmosphere is regulated the requirement that just can satisfy in the chromium slag brickmaking technology several calcination atmospheres by the regulation and control lock between the firing chamber and steam valve, promptly enter the oxidizing flame roasting during phase from the baking phase when first firing chamber, open and second firing chamber between the regulation and control lock, make its high temperature enter second firing chamber, allow second firing chamber enter the baking phase; When first firing chamber's oxidizing flame atmosphere need change into reducing flame atmosphere, adjust the size of regulation and control lock, reduce intake, make first firing chamber's fuel combustion incomplete, produce the reducing gas carbon monoxide, enter reducing flame atmosphere, this moment, second firing chamber also entered oxidizing flame atmosphere through adjustment, operate equally simultaneously, make the 3rd firing chamber enter the baking phase; When first firing chamber's reducing flame atmosphere need change into hydrothermal calcine atmosphere, the regulation and control lock of sealing firing chamber, the steam regulation valve feeds water vapour, make the chromium slag further reduction under steam high temperature reduces pressure atmosphere by force in the burned product, and reduction high temperature viscosity, all burnt in quickening, thereby the intensity of raising burned product, at this moment, second firing chamber has entered reducing flame atmosphere, the 3rd firing chamber enters oxidizing flame atmosphere, and the 4th firing chamber enters the baking phase, so analogizes each firing chamber is carried out aforesaid operations, make whole kiln be the closed circulation shape, make full use of its heat energy, so it can not only the regulated at will calcination atmosphere, also is a kind of energy-conservation kiln simultaneously; What deserves to be mentioned is this kiln if only adopt oxidizing flame atmosphere burned brick, can increase substantially brickmaking output.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1. the structural representation of the utility model embodiment.
Referring to Fig. 1, a kind of hydrothermal calcine kiln, it comprises kiln body 1, it is characterized in that: described kiln body 1 is divided into four sections firing chambers at least, and wherein the firing chamber at two ends is provided with through a wall 12 for end kiln 9,10 in the firing chamber, middle part 11; Connect through regulation and control lock 5 between the firing chamber; Each top, firing chamber is equipped with coal feeding hole 3, steam branch pipe road 2, and steam branch pipe road 2 is connected with main steam header road 7 through steam valve 8.
For the ease of cooling off brick rapidly, can on Yao Ding, kiln wall, establish heat exchanging chamber 4.
For the ease of technology controlling and process, kiln also can be established thermometer hole 13 and pressure tap 6 on the top.
This hydrothermal calcine kiln can also become double increase and the identical firing chamber of firing chamber, middle part 11 structures between two end kilns 9,10, to improve output.
Claims (4)
1. hydrothermal calcine kiln, it comprises kiln body (1), it is characterized in that: described kiln body (1) is divided into four sections firing chambers at least, and wherein the firing chamber at two ends is provided with through a wall in firing chamber, middle part (11) (12) for end kiln (9,10); Connect through regulation and control locks (5) between the firing chamber; Each top, firing chamber is equipped with coal feeding hole (3), steam branch pipe road (2), and steam branch pipe road (2) are connected with main steam header road (7) through steam valve (8).
2. hydrothermal calcine kiln as claimed in claim 1 is characterized in that: the Yao Ding of described firing chamber, kiln wall are provided with heat exchanging chamber (4).
3. hydrothermal calcine kiln as claimed in claim 1 is characterized in that: kiln also can be established thermometer hole (13) and pressure tap (6) on the top.
4, hydrothermal calcine kiln as claimed in claim 1 is characterized in that: can become double increase structure and firing chamber, middle part (11) identical firing chamber between two end kilns (9,10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97237256U CN2300065Y (en) | 1997-06-20 | 1997-06-20 | Water heating burning-in kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97237256U CN2300065Y (en) | 1997-06-20 | 1997-06-20 | Water heating burning-in kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300065Y true CN2300065Y (en) | 1998-12-09 |
Family
ID=33947943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97237256U Expired - Lifetime CN2300065Y (en) | 1997-06-20 | 1997-06-20 | Water heating burning-in kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300065Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737787B (en) * | 2008-11-20 | 2011-08-31 | 沈阳铝镁设计研究院有限公司 | Pot calcining furnace for detoxicating chromium slags at high temperature |
| CN105084857A (en) * | 2014-05-15 | 2015-11-25 | 江苏大地益源环境修复有限公司 | Technological method for treating stainless steel pickling sludge |
| CN106082973A (en) * | 2016-03-08 | 2016-11-09 | 侯绪华 | A kind of chromium slag brickmaking technology |
-
1997
- 1997-06-20 CN CN97237256U patent/CN2300065Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737787B (en) * | 2008-11-20 | 2011-08-31 | 沈阳铝镁设计研究院有限公司 | Pot calcining furnace for detoxicating chromium slags at high temperature |
| CN105084857A (en) * | 2014-05-15 | 2015-11-25 | 江苏大地益源环境修复有限公司 | Technological method for treating stainless steel pickling sludge |
| CN105084857B (en) * | 2014-05-15 | 2017-12-15 | 江苏大地益源环境修复有限公司 | A kind of process for disposing acid-washing stainless steel sludge |
| CN106082973A (en) * | 2016-03-08 | 2016-11-09 | 侯绪华 | A kind of chromium slag brickmaking technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Yuancai Document name: Notice of registration |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |