Apparatus and method for conveying tertiary air waste heat boiler flue dust
A waste heat boiler and conveying device technology, which is applied in the direction of conveying bulk materials, conveyors, transportation and packaging, etc., can solve the problems that screw conveyors cannot withstand high-temperature flue gas and soot grilling, corrosion, and high failure rate, so as to achieve small wear and tear, The effect of simple structure
Active Publication Date: 2009-01-28
BEIJING LIULIHE CEMENT
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Problems solved by technology
[0003] In order to solve the above-mentioned defects in the prior art that the screw conveyor cannot withstand the barbecue and corrosion of high-temperature flue gas and soot, and has a high failure rate, the purpose of the present invention is to provide a conveying device and method for soot from a tertiary air waste heat boiler
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[0018] Such as figure 1 , image 3 , Figure 4 As shown, the present invention relates to a conveying device for conveying soot from a tertiary air waste heat boiler. Between, its inclination is set at 10°-35°, and the optimal setting is 30°; the conveying device replaces the screw conveyor used in the prior art.
[0019] This conveying device is made up of conveying chute 3, ventilation plate 31, ash outlet 4, air blower 33, ventilation pipe. Among them, the conveying chute 3 is V-shaped, and its length is determined according to the longitudinal length of the boiler, the distribution of the ash hopper, and the vertical height between the tertiary air boiler and the next-level conveying equipment; the higher end of the conveying chute 3 is a closed end, The lower end is provided with an ash outlet 4; the thickness of the groove wall of the conveying chute 3 is preferably 6-12mm, and 10mm is the best through experiments; the groove depth is preferably 100-150mm, and the bes...
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The invention discloses a device and method for conveying tertiary-air waste-heat furnace soot, pertaining to the field of waste gas treatment and waste heat comprehensive utilization for cement production. The invention is characterized in that: the conveying device comprises a conveying flume with a V-shaped section, the comparatively low end of which is provided with an ash discharging port and the top of which is provided and sealed with a top cover, on which an ash discharging pipe connected with an ash discharging hopper at the bottom of a tertiary-air waste-heat furnace is provided; at the middle and lower part of the conveying flume, a ventilating board provided with a plurality of holes is provided parallel to the top cover and forms a triangular air channel together with a flume body below the ventilating board; the interior of the ventilating board is provided with clapboards at intervals; the bottom of the conveying flume is longitudinally provided with vent-pipes at intervals which are connected with an external air blower; the vent-pipes send wind in sections to the triangular air channel. The conveying device has no transmission parts, with small abrasion, overcomes the defect of damaging conveying parts owning to roasting of high-temperature materials or corroding of the transmission parts and leads the soot of 750 DEG C to 950 DEG C to reduce to within 100 DEG C swiftly, thus being capable of fulfilling the requirements of cement technology and the failure rate is lowered obviously, thereby being beneficial to popularization and actualization.
Description
technical field [0001] The invention relates to a conveying device and method for soot of a tertiary air waste heat boiler, and belongs to the field of cement production waste gas treatment and waste heat comprehensive utilization. Background technique [0002] The tertiary air waste heat boiler used in the existing cement production line uses a screw conveyor for soot transportation. Since the temperature of the tertiary air waste heat discharged from the cement rotary kiln is about 750-950°C in actual cement production, the temperature of the soot deposited in the settling chamber must also be At 600-700°C, such high-temperature materials must be conveyed and discharged by the screw conveyor. The screw conveyor is often severely deformed due to the barbecue and corrosion of high-temperature materials, and the screw conveyor cannot maintain the screw. The stable operation of the conveyor. However, the maximum material temperature that the existing screw conveyor can withst...
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IPC IPC(8): F23J1/02B65G53/04B65G53/34B65G53/52
Inventor 赵向东王贵生闫少伯张宝平刘海鹏
Owner BEIJING LIULIHE CEMENT