振動爐排熱風爐的燃燒調整方法

振動爐排熱風爐成都收賬燃燒調整方法（1）調整熱風爐成都找人公司振動頻率和振動周期（振動時間和停止時間）振動爐排成都收賬振動頻率一般不隨負荷收賬變化而進行調整，最佳成都找人公司振動頻率是通過觀察低端爐排的擋灰板處的灰渣堆積厚度來決定的。當燃料的粒度、水分和負荷發生變化時，隻是對振動時間和停止時間進行調整，振動頻率一般不進行調整。
The combustion adjustment method of vibrating grate hot blast stove (1) The vibration frequency and period (vibration time and stop time) of the vibrating grate are generally not adjusted with the change of load. The optimal vibration frequency is determined by observing the ash accumulation thickness at the ash baffle of the low grate. When the fuel particle size, moisture and load change, only the vibration time and stop time are adjusted, and the vibration frequency is generally not adjusted. 振動爐排的頻率應該由下面兩個因素來決定：其一是低端爐排的擋灰板處的灰渣堆積厚度，應該維持在5～10cm；其二是在一定振動頻率下，不能使爐膛負壓發生劇烈變化；其三是檢測1號撈渣機出口的灰渣含碳量，正常的含碳量應該為5～10％。（在enkoping電廠，正常情況下，飛灰的含碳量為1～2％；灰渣的含碳量為5～10%。）。根據調整試驗得出：振動爐排的頻率應該為40～45赫茲。
The frequency of vibrating grate should be determined by the following two factors: first, the ash accumulation thickness at the ash baffle of low-end grate should be maintained at 5-10 cm; second, under certain vibration frequency, the negative pressure of furnace can not change dramatically; third, the carbon content of ash at the exit of No. 1 slag dredger should be detected, and the normal carbon content should be kept. It should be 5 to 10%. (In enkoping power plant, under normal conditions, the carbon content of fly ash is 1-2%, and that of ash slag is 5-10%. According to the adjustment test, the frequency of vibrating grate should be 40~45 Hz.
爐排的振動時間決定燃料顆粒在爐排上的行走速度（或每一振動周期內燃料在爐排上的行程），振動時間越長，其破壞焦渣的能力強，但料層內部的翻動性能差，行走速度加快；爐排的停止時間在很大程度上決定燃料顆粒在爐排上的停留時間。
The vibration time of grate determines the walking speed of fuel particles on grate (or the travel of fuel particles on grate in each vibration cycle). The longer the vibrat透水地坪ion time, the stronger the ability of destroying coke slag. However, the turning performance of the material layer is poor and the walking speed is accelerated. The stopping time of grate largely determines the fuel particles in the grate. The length of stay.
（2）調整爐排各區一次風的風量以及相互間匹配
(2) adjust the air volume of the primary air in each area of the grate and match each other.
在一次風中，中端爐排的一次風量最大，高、低端爐排的一次風量相對較少。隨著熱風爐負荷增加，一次風的風量占總風量的比例逐步減少。如果從爐前觀察到落渣口積存較多的未燃盡的小顆粒燃料，則可以適當提高低端爐排的一次風量。
In primary air, the primary air volume of middle-end grate is the largest, while the primary air volume of high-end grate and low-end grate is relatively small. With the increase of the load of the hot blast stove, the proportion of the primary air volume to the total air volume gradually decreases. The primary air flow of low-end grate can be increased appropriately if more unburned small granular fuel is observed in front of the grate.
如果高端、中端爐排的爐排風量都增大，則爐排上火焰前沿向爐排高端移動；如果高端爐排的爐排風量环氧地坪減少、中端爐排的爐排風量增大，則爐排上火焰前沿向爐排低端移動；如果低端、中端爐排的爐排風量都增大，則爐排上火焰前沿向爐排中端移動；如果低端爐排的爐排風量減少、中端爐排的爐排風量增大，則爐排上火焰前沿向爐排低端移動。
If the exhaust air volume of high-end and middle-end grates increases, the flame front on the grate moves towards the high-end of the grate; if the exhaust air volume of high-end grate decreases and the exhaust air volume of middle-end grate increases, the flame front on the grate moves towards the low-end of the grate; if the exhaust air volume of low-end and middle-end grate increases, the grate will be on fire. The flame front moves towards the middle end of the grate; if the air flow of the low-end grate decreases and the air flow of the middle-end grate increases, the flame front moves towards the lower end of the grate.
（3）調整二次風和火上風
(3) adjust the two winds and the upper wind of the fire.
隨著熱風爐負荷增加，二次風的風量占總風量的比例逐步增加。各個二次風和火上風的作用如下所述。1和4為前、後墻的火上風，作為上二次風的分級配風，主要是向未燃盡的氣體和燃料顆粒提供補充氧氣，同時起到降低氮氧化物的作用（適當可以降低爐膛溫度，因為爐膛的溫度測點與火上風距離比較近）；2和5為前、後墻的上二次風，主要是起到擾動和補充氧量的作用。3為前墻的下二次風，可以起到增強燃料流剛性和有助於均勻播撒燃料的作用。6為後墻下二次風，不僅起到擾動和補燃的作用，而且還可以影響燃料拋撒的長度，如果柔性管的燃料積存的比較多，可以開大6的擋板開度，阻止燃料拋撒的長度。如果燃料比較幹燥或燃料的顆粒比較小，則可以增大6的擋板開度，使燃料盡可能快地燃燒，沒有必要將燃料播散得更遠處。
With the increase of the load of the hot stove, the proportion of the two air volume to the total air volume gradually increases. The effects of all two winds and fire upwind are as follows. 1 and 4 are the fire upper wind of the front and rear walls. As the classified air distribution of the upper secondary air, they mainly supply oxygen to the unburned gases and fuel particles, and at the same time they play the role of reducing nitrogen oxides (appropriately reducing the furnace temperature, because the temperature measuring point of the furnace is close to the fire upper wind); 2 and 5 are the upper part of the front and rear walls. The two wind mainly acts as a disturbance and replenish oxygen. 3. The secondary air from the front wall can enhance the rigidity of fuel flow and help to distribute fuel evenly. 6 is the secondary air under the rear wall, which not only disturbs and reimburses the combustion, but also affects the length of fuel throwing. If the flexible tube has more fuel, the baffle opening of 6 can be increased to prevent the length of fuel throwing. If the fuel is drier or the fuel particles are smaller, the baffle opening of 6 can be increased to make the fuel burn as fast as possible, and there is no need to spread the fuel farther.
（4）建立合適的爐膛負壓，組織好合理的爐內燃燒空氣動力場
(4) establish suitable furnace negative pressure and organize reasonable combustion aerodynamic field in furnace.
爐膛負壓的正常運行值的范圍：－50pa～—250Pa，當爐膛負壓大於＋0Pa（延時30秒或大於＋50Pa（延時5秒）或小於－2KPa時，熱風爐的MFT動作。
The range of normal operation value of furnace negative pressure is -50pa to - 250Pa. When the furnace negative pressure is greater than + 0Pa (delay 30 seconds or more than + 50Pa (delay 5 seconds) or less than - 2KPa, the MFT action of hot blast stove.
如果爐膛負壓大於0 Pa甚至更高，首先造成高溫煙氣和火焰回火到給料機的落料管，引發燃料著火，對給料機、落料管和逆止擋板造成損害；其次，造成高溫煙氣和火焰回火到二次風的管道中，燒壞二次風的噴口，還有可能燒壞火焰監視器。還有，爐膛內的高溫煙氣會從人孔門或啟動燃燒器的活動門的縫隙噴出，損壞設備或對人造成傷害。
If the furnace negative pressure is greater than 0 Pa or even higher, it will first cause high temperature smoke and flame to temper to the feeder's feeder's feeder's feeder tube, causing fuel ignition, causing damage to feeder, feeder and backstop baffle; secondly, it will cause high temperature smoke and flame to temper to the secondary air pipeline, burning the nozzle of secondary air, and may also burn out. Flame monitor. In addition, the high-temperature flue gas in the furnace will eject from the crevice of the manhole door or the movable door of the burner, which will damage the equipment or cause harm to people.
如果爐膛負壓很低，首先，會縮短細小的燃料顆粒和未完全燃燒氣體在爐膛中的停留時間，造成固體不完全熱損失和可燃氣體不完全燃燒熱損失增大，降低瞭熱風爐的燃燒效率和熱效率；其次，造成熱風爐的漏風量增大，造成排煙溫度升高，排煙熱損失增大，降低成都找人公司的熱效率；還有，爐膛負壓太低，則會使爐膛的水冷壁變形，拉裂焊口，對水冷壁造成損壞。
If the furnace negative pressure is very low, firstly, the residence time of fine fuel particles and incomplete combustion gases in the furnace will be shortened, resulting in the increase of solid incomplete heat loss and flammable gas incomplete combustion heat loss, which reduces the combustion efficiency and thermal efficiency of the hot blast stove; secondly, the increase of air leakage in the hot blast stove will result in the increase of the air leakage rate of the hot blast stove. With the increase of exhaust gas temperature, the heat loss of exhaust gas increases and the thermal efficiency of hot blast stove decreases. Moreover, if the negative pressure of furnace is too low, the water wall of furnace will be deformed and the weld joint will be cracked, which will cause damage to the water wall.