A circulating fluidized bed boiler for papermaking
A circulating fluidized bed and boiler technology, applied in the field of papermaking, can solve problems such as blocking the return port, achieve safe operation and improve production efficiency
Active Publication Date: 2017-05-31
山鹰华南纸业有限公司
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The invention provides a circulating fluidized bed boiler for papermaking, which is used to solve the problem of blocking the return port due to local over-temperature coking
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0063] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0064] see Figure 1 to Figure 6 , a circulating fluidized bed boiler for papermaking according to the present invention, comprising a front shaft 10, a separator 20 and a rear shaft 30, and the front shaft and the rear shaft are communicated through the separator;
[0065] The front shaft is a general suspension structure, and the side wall 101 of the front shaft is provided with a membrane-type water-cooled wall 11. The front shaft includes an air chamber 12, a dense-phase area 13 and a dilute-phase area 14 from bottom to top. In the dense-phase area 13 There is a transition area between the air chamber and the dilute phase area 14, and an air distribution plate 15 is provided between the air chamber and the dense phase area. On the air ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a circulating fluid bed boiler for papermaking. The circulating fluid bed boiler comprises a front vertical well, a separator and a rear vertical well. A membrane wall is arranged on the side wall of the front vertical well. The front vertical well sequentially comprises an air chamber, a dense-phase region and a lean-phase region from bottom to top. An air-distribution plate is arranged between the air chamber and the dense-phase region. A feeding opening and a return opening are formed in the side wall of the dense-phase region. The rear vertical well comprises a high-temperature superheater, a low-temperature superheater, an economizer and an air preheater. The bottom of the rear vertical well is provided with a smoke exhaust channel. A return device and a boiler ash cooler are arranged on the lower portion of the separator. The return device comprises an air inlet channel, a first return fan and a second return fan. The temperature is controlled through the first return fan and the second return fan, and the combustion temperature of returned materials is controlled to be within the range of 800 DEG C to 1,000 DEG C by adjusting the oxygen concentration of mixed gas in an air inlet channel, so that the return opening cannot be blocked by the returned material, the whole circulating fluid bed boiler operates safely, and the production efficiency of the circulating fluid bed boiler is improved.
Description
technical field [0001] The invention relates to the technical field of papermaking, in particular to a circulating fluidized bed boiler for papermaking. Background technique [0002] In the use of today's high-temperature separation circulating fluidized bed boilers, when the cyclone separator returns the coal ash, the local temperature exceeds 1000°C and coking blocks the return port, which often causes unplanned shutdown accidents, resulting in The efficiency of production is low, and the cost of maintenance is also greatly increased. Contents of the invention [0003] The invention provides a circulating fluidized bed boiler for papermaking, which is used to solve the problem of local over-temperature coking and blocking of a material return port. [0004] The present invention is achieved in the following way: a circulating fluidized bed boiler for papermaking, comprising a front shaft, a separator and a rear shaft, and the front shaft and the rear shaft are communica...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F23C10/10F23C10/18F23C10/26F23C10/28
CPCF23C10/10F23C10/18F23C10/26F23C10/28F23C2206/10
Inventor 苏建华
Owner 山鹰华南纸业有限公司