预热

This process can preheat blast furnace gas and air up to 200℃ and 400℃ respectively, and blast temperature above 1 200℃ can be obtained from pebble stove.

该工艺技术把高炉煤气和助燃空气分别预热到200℃和400℃，配套采用球式热风炉，热风温度可以达到1200℃以上，同时计算了工艺中涉及到的各种参数，对工艺和设备进行了设计或选型。

"Wax thermostat, glow plug, air heater, radiator cap, water temperature sensor, oil pressure siren, engine rpm sensor, oil pressure sensor, thermal switch, flame heater plug, electronic qxk start-stop control, thermostat cover and so on.

&，&蜡质调温器，电热塞，空气加热器，水箱盖，水温传感器，油压报警器，转速传感器，油压传感器，热敏开关，火焰预热塞，电动熄火控制器，节温器壳等等发动机配件。

Thermal tests on air self-preheating hot stove ceramic burners.

空气自身预热热风炉陶瓷燃烧器热态试验。

Practice of the high blast temperature in 300 m 3BF of Maanshan Iron and Steel Co.Ltd;2. Measures to high blast temperature operation;3. A series of measures for realizing high blast temperature and long campaign have been taken in the design of ex- ternal combustion type hot air stove provided by Nippon Steel for 4350m~3 blast furnace newly built in Taiyuan Iron and Steel Co.

在新建的太钢4350m~3高炉新日铁外燃式热风炉的设计中，围绕高风温长寿命采取了一系列措施：蓄热室、燃烧室、混风室内墙体与拱顶的拱角相接处，采用迷宫式结构，防止独立砌体间窜风；在开孔部位采用组合砖，以提高这些关键部位的气密性和结构稳定性；蓄热室内采用带凹凸槽的小孔径七孔高效格砖，提高加热面积；采用分离型余热回收装置预热助燃空气和煤气等。

A series of measures for realizing high blast temperature and long campaign have been taken in the design of ex- ternal combustion type hot air stove provided by Nippon Steel for 4350m~3 blast furnace newly built in Taiyuan Iron and Steel Co.

在新建的太钢4350m~3高炉新日铁外燃式热风炉的设计中，围绕高风温长寿命采取了一系列措施：蓄热室、燃烧室、混风室内墙体与拱顶的拱角相接处，采用迷宫式结构，防止独立砌体间窜风；在开孔部位采用组合砖，以提高这些关键部位的气密性和结构稳定性；蓄热室内采用带凹凸槽的小孔径七孔高效格砖，提高加热面积；采用分离型余热回收装置预热助燃空气和煤气等。

Forth step: Use another pan, put some oil in it, when it's warm put star aniseed, cinnamon stick, ginger and green onion, stiring a little bit, then put beef, rice vinger and rice cooking wine in it.

新起锅放油，预热后放入八角桂皮葱及姜翻炒几下，加入牛肉，米醋，米酒，继续翻炒一到两分钟，加水没肉。

The preheat oven is used to bring the pump up to the metal bath temperature.

进口工业网的预热烤箱是用来使泵送金属浴温度。

Butt Weld and docking and corner combinations Weld, in Weld ends located arc plate and extraction plate in igniting board then leads to the welding seam, joint halfway shall weld joints in front of 2.0 mm Department Firing arc, welding pieces after preheating rod will return to weld the origin, pool filled to the required thickness, before forward welding; Welding speed : Isokinetic welding requirements to ensure weld thickness, width uniform, which masks to look for hot metal and slag bath equidistance (2-3 mm)%; Arc welding rod length : different models and determined that the general requirements of arc length is stable, acid electrode generally 3-4 mm, 2-3 mm normally alkaline electrode%; Welding perspective : According to determine the thickness of two pieces of welding, welding angle has two aspects : First, the angle between the direction of the rod and welding of 60-75 ; The second is the angle between two electrodes and welding around, the same thickness as welding, welding and welding pieces incident angle of 45 ; When the thickness ranging from welding, welding electrode and thick and thin pieces of welding electrode side angle greater than the angle between the side pieces; Arc : admission to the end of each weld should be filled crater, in the direction opposite to the direction of the back-arc welding, arc welding unchanged inside pit in 1974, to prevent the crater bite of meat.

对接焊缝及对接和角接组合焊缝，在焊缝两端设引弧板和引出板，必须在引弧板上引出后再焊到焊缝区，中途接头则应在焊缝接头前方15～20㎜处打火引弧，将焊件预热后再将焊条退回到焊缝起始处，把熔池填满到要求的厚度后，方可向前施焊；焊接速度：要求等速焊接，保证焊缝厚度、宽度均匀一致，从面罩内看熔池中铁水与熔渣保持等距离（2～3㎜）为宜；焊接电弧长度：根据焊条型号不同而确定，一般要求电弧长度稳定不变，酸性焊条一般为3～4㎜，碱性焊条一般为2～3㎜为宜；焊接角度：根据两焊件的厚度确定，焊接角度有两个方面，一是焊条与焊接前进方向的夹角为60～75 ；二是焊条与焊接左右夹角有两种情况，当焊件厚度相等时，焊件与焊件夹角为45 ；当焊件厚度不等时，焊条与较厚焊件一侧夹角应大于焊条与薄焊件一侧夹角；收弧：每条焊缝焊到末尾，应将弧坑填满后，往焊接方向相反的方向带弧，使弧坑甩在焊道貌岸然里边，以防弧坑咬肉。

Monotubular heater is an important apparatus in Bayer process of alumina extraction used in Pingguo Aluminum Company. However, since several years cracking in its weld joints occur and the production process is then interrupted by leaking of liquor.

单管预热器是平果铝拜尔法生产氧化铝的重要设备，经常在其焊缝区发生开裂泄露，影响生产，必须对造成其开裂的主要原因进行研究并提出有效的防护措施，以延长其使用周期。

Main production the following: single-Doo on coal, ring and belt conveyor raise more fighting, TD75 series of conveyor belts and DDJ steep conveyor belt, CG-trough feeder, Permanent Magnetic Separation, Cleaner Machine: heavy chain, ring chain, linked plate, the main boiler linked films, spiral Cleaner and other chain-Cleaner, SM-economizer, FB-explosion-proof doors, air preheater, ceramics and more of the dust collector, Ceramic multi-desulfurization dust collector, self-water bath desulfurization dust collector, XLP type, XZD-cyclone, muffler.

主要生产以下产品：单斗上煤机、圆环和皮带多斗提升输送机、TD75系列皮带输送机和DDJ大倾角皮带输送机、CG型槽式给料机、永磁磁选分离器、除渣机：重链、圆环链、板链、锅炉主链片、螺旋除渣及其它链条除渣机、SM型省煤器、FB型防爆门、空气预热器、陶瓷多管除尘器、陶瓷多管脱硫除尘器、自激水浴脱硫除尘器，XLP型、XZD型旋风分离器、消声器。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。