CN202902264U - Bed material charging and conveying device of circulating fluidized bed boiler - Google Patents
Bed material charging and conveying device of circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN202902264U CN202902264U CN 201220581031 CN201220581031U CN202902264U CN 202902264 U CN202902264 U CN 202902264U CN 201220581031 CN201220581031 CN 201220581031 CN 201220581031 U CN201220581031 U CN 201220581031U CN 202902264 U CN202902264 U CN 202902264U
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- bed material
- bed
- shell
- conveying device
- circulating fluidized
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Abstract
The utility model provides a bed material charging and conveying device of a circulating fluidized bed boiler. The bed material charging and conveying device comprises a manual maintenance gate connected below a bed material bin, wherein a compensator, a material inlet valve, a sending device and a material outlet elbow are sequentially connected below the manual maintenance gate; the lower end of the material outlet elbow is connected with a pneumatic material discharge valve; the sending device comprises a shell and a cylinder body; the cylinder body is arranged inside the shell; the upper end of the cylinder body is fixedly connected with an upper wall plate of the shell; the shell is also provided with an air inlet pipe; and the air inlet pipe is communicated with the side wall of the shell of the sending device. When a bed material is conveyed from the bed material bin to a bed material hole of the boiler by the bed material charging and conveying device, the bed material can be smoothly and easily conveyed to the bed material hole of the boiler; and the bed material charging and conveying device is simple in structure, low in manufacturing cost and low in energy consumption.
Description
Technical field
The utility model relates to a kind of powder particle mixing shape material Pneumatic conveyer, is more particularly to a kind of circulating fluidized bed boiler bed material and adds conveying device, belongs to boiler bottom slag strength conveying arrangement field.
Background technology
It is the effect of setting up, keep material balance at boiler startup during the initial stage that CFBB starts bed material interpolation conveying device Main Function, make burner hearth air distribution plate, material returning valve and external bed place all need to tile to start the bed material by this system, the assurance CFBB is set up initial Matter Transfer in the ignition trigger stage, in the boiler startup process, if material is progressively carried by flue gas and loses, cause a pressure drop low, recycle stock reduces, also need to start the bed material this moment and add conveying device, continue to add the bed material.
The bed material that CFBB adds is exactly the solid material in the fluid bed, comprises fuel, desulfurizing agent, residue etc., fuels such as coal, living beings, municipal refuse etc.
Present existing circulating fluidized bed boiler bed material adds conveying device and has following shortcoming:
When 1, present existing circulating fluidized bed boiler bed material interpolation conveying device is transported to boiler bed material mouth to the bed material from the bed feed bin, the bed material occurs and carry not smooth situation, a material is difficult for being transferred away.
2, present existing circulating fluidized bed boiler bed material adds the transport conveyor constructions complexity, cost is large, and energy consumption is high.
The utility model content
The purpose of this utility model is to overcome above deficiency, provides a kind of circulating fluidized bed boiler bed material to add conveying device, and it easily is transported to boiler bed material mouth to the bed material.
A kind of circulating fluidized bed boiler bed material adds conveying device, comprise be connected under the feed bin to manual access door, following compensator, inlet valve, transmitting apparatus, the discharging elbow of being connected to successively of described manual access door, the lower end of described discharging elbow connects pneumatic bleeder valve, transmitting apparatus comprises shell, cylindrical shell, the cylindrical shell setting in the enclosure, the upper end of cylindrical shell is fixedly connected with the wainscot of shell, also be provided with air inlet pipe on the shell, air inlet pipe is communicated with the sidewall of the shell of transmitting apparatus.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, and wherein, described air inlet pipe is provided with intake valve.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, and wherein, the port of export of described pneumatic bleeder valve is provided with air compensation ring, and first blowdown pipe is communicated with air compensation ring.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, and wherein, the upper end of described discharging elbow is provided with making-up air device, and making-up air device is connected with second blowdown pipe.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, wherein, is provided with Pneumatic balanced valve between described transmitting apparatus and the bed feed bin, and transmitting apparatus is communicated with the bed feed bin by Pneumatic balanced valve.
The beneficial effects of the utility model are:
When 1, the utility model was transported to boiler bed material mouth to the bed material from the bed feed bin, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth.
2, simple in structure, the low cost of manufacture of the utility model, energy consumption is low.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of transmitting apparatus.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
A kind of circulating fluidized bed boiler bed material adds conveying device, comprise be connected to a feed bin 1 time to manual access door 2, following compensator 3, inlet valve 4, transmitting apparatus 5, the discharging elbow 6 of being connected to successively of described manual access door 2, the lower end of described discharging elbow 6 connects pneumatic bleeder valve 7, transmitting apparatus 5 comprises shell 8, cylindrical shell 9, cylindrical shell 9 is arranged in the shell 8, the upper end of cylindrical shell 9 is fixedly connected with the wainscot of shell 8, also be provided with air inlet pipe 10 on the shell 8, air inlet pipe 10 is communicated with the sidewall of the shell 8 of transmitting apparatus 5.Be provided with intake valve 11 in air inlet pipe 10.The port of export at pneumatic bleeder valve 7 is provided with air compensation ring 12, and first blowdown pipe 13 is communicated with air compensation ring 12.
Be provided with making-up air device 14 in the upper end of discharging elbow 6, making-up air device 14 is connected with second blowdown pipe 15.Be provided with Pneumatic balanced valve between transmitting apparatus 5 and bed feed bin 1, transmitting apparatus 5 is communicated with bed feed bin 1 by Pneumatic balanced valve.
The bed material adds and carries flow process as follows:
Open manual access door 2, inlet valve 4 sealing ring pressure releases, time-delay, open inlet valve 4, the bed material beginning blanking that the bed feed bin is 1 li, the bed material falls from bed feed bin 1, the bed material is through manual access door 2, compensator 3, inlet valve 4 enters 5 li of transmitting apparatus, be through with when the time of blanking, close inlet valve 4, time-delay rear feeding valve 4 sealing rings carry out pressurising, then open pneumatic bleeder valve 7, and pneumatic bleeder valve 7 is opened intake valve 11 after opening and putting in place, gas is by first blowdown pipe 13 simultaneously, air compensation ring 12 enters the inside of the port of export of pneumatic bleeder valve 7, and the inside of the port of export of pneumatic bleeder valve 7 carried out tonifying Qi, gas is by second blowdown pipe 15 simultaneously, making-up air device 14 enters the inside of the upper end of discharging elbow 6, and tonifying Qi is carried out in the inside of the upper end of discharging elbow 6; Transmitting apparatus 5 just can utilize strength to carry the bed material, make the bed material be transported to boiler bed material mouth through discharging elbow 6, pneumatic bleeder valve 7, the tonifying Qi that while air compensation ring 12 and making-up air device 14 carry out can strengthen the flowability of bed material, be conducive to utilize the pneumatic conveying bed material, when course of conveying finishes, close intake valve 11, and gas stops to enter first blowdown pipe 13 and second blowdown pipe 15, pneumatic bleeder valve 7 is closed in time-delay, and system enters next time cyclic process.
Manually access door 2 is often opened, and just closes when the utility model has fault; When the utility model has fault, can close manual access door 2, again the utility model is carried out trouble shooting and gets rid of fault.
Because: also comprise: air compensation ring 12, first blowdown pipe 13, be provided with air compensation ring 12 at the port of export of pneumatic bleeder valve 7, first blowdown pipe 13 is communicated with air compensation ring 12; Thereby: when convey materials, gas enters the inside of the port of export of pneumatic bleeder valve 7 by first blowdown pipe 13, air compensation ring 12, and the inside of the port of export of pneumatic bleeder valve 7 carried out tonifying Qi, and improve the flowability of material, be conducive to transmitting apparatus 5 convey materials; And then: when the utility model was transported to boiler bed material mouth to the bed material from bed feed bin 1, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; And the utility model is simple in structure, low cost of manufacture, and energy consumption is low.
Because: be provided with making-up air device 14 in the upper end of discharging elbow 6, making-up air device 14 is connected with second blowdown pipe 15; Thereby: when convey materials, gas enters the inside of the upper end of discharging elbow 6 by second blowdown pipe 13, making-up air device 14, and tonifying Qi is carried out in the inside of the upper end of discharging elbow 6, improves the flowability of material, is conducive to transmitting apparatus 5 convey materials; And then: when the utility model was transported to boiler bed material mouth to the bed material from bed feed bin 1, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; And the utility model is simple in structure, low cost of manufacture, and energy consumption is low.
Because: be provided with Pneumatic balanced valve between transmitting apparatus 5 and bed feed bin 1, transmitting apparatus 5 is communicated with bed feed bin 1 by Pneumatic balanced valve; Thereby can balance pressure reduction.
Because: transmitting apparatus 5 comprises shell 8, cylindrical shell 9, is provided with cylindrical shell 9 in shell 8, and the upper end of cylindrical shell 9 is fixedly connected with the wainscot of shell 8, also comprises air inlet pipe 10, and air inlet pipe 10 is communicated with the sidewall of the shell of transmitting apparatus 5; Thereby: when convey materials, gas enters in the shell 8 and the space between the cylindrical shell 9 of transmitting apparatus 5 through air inlet pipe 10, and flow downward, the bed material that drives shell 8 inside flows, and the mixture of gas and bed material finally enters into boiler bed material mouth through discharging elbow 6, pneumatic bleeder valve 7; And then: when the utility model was transported to boiler bed material mouth to the bed material from bed feed bin 1, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; And the utility model is simple in structure, low cost of manufacture, and energy consumption is low.
In sum, when the utility model was transported to boiler bed material mouth to the bed material from the bed feed bin, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; The utility model is simple in structure, low cost of manufacture, and energy consumption is low.。
Claims (5)
1. a circulating fluidized bed boiler bed material adds conveying device, it is characterized in that, comprise be connected under the feed bin to manual access door, following compensator, inlet valve, transmitting apparatus, the discharging elbow of being connected to successively of described manual access door, the lower end of described discharging elbow connects pneumatic bleeder valve, transmitting apparatus comprises shell, cylindrical shell, the cylindrical shell setting in the enclosure, the upper end of cylindrical shell is fixedly connected with the wainscot of shell, also be provided with air inlet pipe on the shell, air inlet pipe is communicated with the sidewall of the shell of transmitting apparatus.
2. circulating fluidized bed boiler bed material as claimed in claim 1 adds conveying device, it is characterized in that, described air inlet pipe is provided with intake valve.
3. circulating fluidized bed boiler bed material as claimed in claim 1 adds conveying device, it is characterized in that, the port of export of described pneumatic bleeder valve is provided with air compensation ring, and first blowdown pipe is communicated with air compensation ring.
4. circulating fluidized bed boiler bed material as claimed in claim 1 adds conveying device, it is characterized in that, the upper end of described discharging elbow is provided with making-up air device, and making-up air device is connected with second blowdown pipe.
5. add conveying device such as claim 1,2,3 or 4 described circulating fluidized bed boiler bed materials, it is characterized in that, be provided with Pneumatic balanced valve between described transmitting apparatus and the bed feed bin, transmitting apparatus is communicated with the bed feed bin by Pneumatic balanced valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581031 CN202902264U (en) | 2012-11-06 | 2012-11-06 | Bed material charging and conveying device of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581031 CN202902264U (en) | 2012-11-06 | 2012-11-06 | Bed material charging and conveying device of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902264U true CN202902264U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220581031 Expired - Fee Related CN202902264U (en) | 2012-11-06 | 2012-11-06 | Bed material charging and conveying device of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202902264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980179A (en) * | 2012-11-06 | 2013-03-20 | 镇江市电站辅机厂有限公司 | Circulating fluidized bed boiler bed material adding conveying device |
-
2012
- 2012-11-06 CN CN 201220581031 patent/CN202902264U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980179A (en) * | 2012-11-06 | 2013-03-20 | 镇江市电站辅机厂有限公司 | Circulating fluidized bed boiler bed material adding conveying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20161106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |