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Small circulating fluidized bed boiler technology ignition run
Abstract：To introduce an economic, strong and the vessels of the boiler, the technology the process of law and experience.
Keywords：The boilerthe technology cycle vessels 1foreword
The vessels one cycle of a boiler is a burning efficient, adaptable, to change to heat loading, the scope of such emissions, but in the process of implementation of the case of nitrogen, environmental requirements to take off the fire the boiler. at present, in the small and medium-sized heating or production of the boiler（ten tons of～seventy five ton）the widespread adoption of the stove, Parts new, or the reform of the circulation of vessels, quite a number of personnel for operation of vessels of the running so the technology and economy is a better and better attuned to the small and medium-sized the vessels of the operation of the technology, combined with wood taiyuan boiler plant type of vessels hot water runs by the technology for this.
2 the operation of the technical 2.1 the preparation of various
For new, or overhauling of the cycle of vessels, when the boiler pressure test of boilers and the furnace to boil over and the inmates are
allowed to pass and have the run. in the running up before the preparations have been covered against ：coal, coal, the electrical and control system that the boilers in the water, the army and the valve is opened, the cycle pump has to run the normal, all the preparatory work is complete with the operating conditions.
Ready enough some matches, there are mainly：the（with wood is best pear trees and the hard wood and assorted wood）200kg, wood is in 30～50mm length between the two～300mm, there is no iron and wood ;the things in bulk 85～100kg in diameter, 20～40mm.
The boiler the fluidized bed with the base chosen not to boil water or damp（better is the circulation of the vessels of boilers）, granularity for5～10mm between the number for use by subtracting 5and 10by 10mm to the base of the sieve, the removal of the screen of a large and small particles of path.
2.2 the vessels before the light of the cold was enough to test ： The vessels before the light of the cold was enough to test for the purpose of the vessels for the offer for the reference of the parameters and guidelines. the cold was enough to run the main content to for coal and speed between the different thickness；direction of the base, drums, of the frequency, the wind with a bellows air pressure vessels the relationship between the curve. the relationship with a drawn out to help the operation.
Simulated tests, the vessels to 350～450mm of the base blowers, on the bed into the base flow into the boiling state, with a rake in the bed and tugging, not hamper, a floating feel that the base has run into. the blowers, observations on the bed surface of the base for, if the surface smooth the flow of a rough surface of the base, if the cap that there may be blocked, Should deal with the simulated tests. the experiment in observing once or twice returned, proper regulation of the back of the wind to meet the requirements. simulation testing process should be a detailed record of all types of parameters.
2.3 ignition run
In the cold was enough to test on the basis of data, select the right thickness （350mm～450mm）the base of the way, the base on a hundred～200kg of wood and wood on fire, and therefore should be placed in a small number of diesel scavenging wood, and closed the door at the end of the vessels of temperature, central the temperature every 20～30min man went through a wood and wood to burn a piece of diameter of about 30mm .Observe the expected temperature vessels up to 400～500℃ and temperature 250～350℃（general time for two to three hours）to vessels in the base of over 60～80kg and caught fire to burn full, the continued heating the end of the base, vessels temperature reached more than 600 ℃（the burning fiery red）presented, if the temperature will remain five～ten minutes, the base has been full of heat and light the
fire started.
Starts, you will first, a fan of the mock trials open to that the meeting, open and opened a fan. fan , the frequency of , gradually increase the quantity, and take over 200pa～250pa, the base flow, the temperature is gradually rising and when the base of the temperature rises to about 800℃, for coal, for a small side for the amount of coal increased the wind, and maintain a negative and To the base temperatures rise to about 950℃, then adjust of frequencies and frequency of the blowers of the pressure maintained in 150pa～200pa, when the temperature of around the base for steady state, the successful start, the process usually takes three～five min success. the regulation again in the amount of coal, and to maintain a negative temperature to down at about 100pa.
The process, to maintain of negative, the door to prevent the fire. in addition, in order to find coal fire in the base for local shiny or the temperature increases, the base of a settlement, which should be reduced to increase the amount of coal, the wind seared;if found in the bright light ball up and the amount is too big, should reduce the amount.
The start process should have the detailed records, and observation of boilers and the expansion of the display of data, the successful gradually adjust the conditions needed to achieve.
2.4 can learn from experience
a ． blowers, once or twice the blower use control ；
