CN2466532Y - Adjustable fluid-bed feeding device - Google Patents

Abstract

The device of the utility model belongs to the field of a powdery material conveyor of the metallurgy and ironmaking, and the utility model is particularly suitable for a coal conveying device of a fluidization tank of the coal injection of a blast furnace. The device of the utility model is composed of an injection pipe in the fluidization tank, and the injection pipe can adjust the feeding quantity of the powdery materials; a feed inlet of a powdery material conveying pipe needs to be a bell mouth shape; the upper end of the injection pipe is provided with an adjusting cone, a gas chamber at the middle end is provided with air holes, and the lower end of the injection pipe is connected with a regulator; when the regulator is provided with a motor operator, the accurate adjustment of the conveying quantity control of the powder material can be automatically completed. The utility model has the characteristics of reasonable structural design, wide regulation range of conveying quantity of powdery materials, the simultaneity of fine adjustment, accurate adjustment, manual adjustment, automatic adjustment, etc.

Description

Adjustable fluid bed charging gear

The utility model device belongs to the granular material conveyer field of metallurgical ironmaking.Be specially adapted to the defeated device for coal of streaming tank of pulverized coal injection in blast furnace.

Blast-furnace equipment coal dust fluid bed conveying device in the prior art generally adopts in a winding-up jar bottom and is provided with a fluid bed, and a powder delivery line is arranged on the top of fluid bed.Fluidizing gas by the fluid bed input behind powders flowing purification, transfers out by duff pipe again.In order to regulate powder delivering amount, at duff pipe exit certain distance an air compensation device is housed, the working method of this fluid bed conveying device is to enter the conveying capacity that gas flow in the air compensation device is adjusted powder by adjusting.Therefore this device is subjected to the restriction of structure, can not come stable regulation flow size in the fluid mapper process than atm number, so that the major defect of this fluid bed charging gear is an adjustable range is little, can not carries out trace and regulate feeding coal, fails characteristics such as the powder sending quantity error is big.

The purpose of this utility model is to propose a kind of reasonable in design, uses reliably, and the adjustable fluid bed that can accurately regulate powder delivering amount is to the powder device.

Purpose according to the utility model device, but we propose the operation principle of adjustable fluid bed charging gear is the winding-up pipe that a up-down adjustment is housed in the import lower end of duff pipe, cone governor is equipped with in upper end at the winding-up pipe, his lower end links with the YE that can regulate the lifting of winding-up pipe, manages lifting and controls duff pipe and advance the purpose that gap between powder flared horn and the cone governor reaches accurate powder-feeding amount by regulating to jet.The concrete structure of this device is described below with reference to the accompanying drawings.This accompanying drawing is the generalized section of the adjustable fluid bed charging gear of the utility model.1 is the winding-up jar in the accompanying drawings, and 2 is duff pipe, and 3 is cone governor, 4 are the winding-up pipe, and 5 is sealing ring, and 6 is central tube, 7 is fluidising chamber, and 8 is the fluidisation plate, and 9 is the fluidisation air chamber, 10 is support, and 11 is air chamber, and 12 is air inlet pipe, 13 is adjuster, 14 is YE, and 15 is pore, and the arrow direction is gas flow.Can find out by accompanying drawing, the composition of the adjustable fluid bed charging gear of the utility model is in winding-up jar 1 duff pipe 2 to be housed, being divided into by fluidisation plate 8 in winding-up jar 1 bottom is powders flowing purification chamber 7, with be down the streaming tank of fluidisation air chamber 9, the air inlet pipe 12 that communicates with fluidisation air chamber 9 is housed on the outer wall of fluidisation air chamber 9, jar charging aperture of the 1 interior duff pipe of adorning 2 that it is characterized in that jetting is a flared horn, on the diapire of winding-up jar 1 with on the fluidisation plate 8 central tube 6 is being housed fixedly, in central tube 6, be set with to the lower end of duff pipe 2 flared horn, the winding-up pipe 4 following and adjuster 13 joins, cone governor 3 is equipped with in upper end at winding-up pipe 4,4 sections wall places of winding-up pipe that the middle and lower part is sleeved in the air chamber 11 have pore 15, in winding-up jar 1 lower end support 10 is housed, in the lower end of support 10 adjuster 13 is housed, air chamber 11 is housed in support 10, air inlet pipe 12 is housed on air chamber 11.Other features of the present utility model also have loud-speaker powder inlet, cone governor 3, winding-up pipe 4 and the adjuster 13 of duff pipe 2 to be installed on the same central axis.Between central tube 6 and air chamber 11 and winding-up pipe 4, sealing ring 5 is housed all.Adjuster 13 is manual adjustments, can also adorn YE 14 in adjuster 13 lower ends simultaneously, can be motorized adjustment.

The work embodiment of this device is provided with central tube 6 at the center of fluidisation winding-up jar 1, establish winding-up pipe 4 in the central tube 6, winding-up pipe 4 tops are provided with cone governor 3, and central tube 6 and 4 of winding-up pipes are provided with sealing ring 5, be provided with fluidisation air chamber 9 below in the streaming tank, make powders flowing purification and outwards output.Blowing gas (compressed air or nitrogen) enters air chamber 11 from air inlet 12 and enters winding-up pipe 4 through the air admission hole 15 at winding-up pipe 4 middle parts again, utilize gas to enter duff pipe 2 from the powder that winding-up pipe 4 high speed ejections formation vacuum suction is fluidized, and can be by regulating the air quantity of jetting to regulate the transportation concentration of powder.

Adjuster 13 at winding-up jar 1 below by support 10 lower ends, can the manual adjustments winding-up manage 4 liftings, simultaneously, adjuster 13 can also be equipped with electronic formula electric actuator 14, in order to regulate the gap between winding-up pipe 4 and cone governor 3 and discharge tube 2 horn mouths, to reach the adjusting powder delivering amount.The electronic formula electric actuator of selecting for use 14 has very high degree of regulation (total kilometres 1%), thus can reach fine adjustment to the gap between cone governor 3 and duff pipe 2 horn mouths, thus can accurately regulate the quantity of output powder.Because selected electronic formula electric actuator 14 can directly link to each other with microcomputer, and accept the instruction that microcomputer sends, thereby can realize the microcomputer automatic control powder delivering amount easily.

Adopt the accurate adjustable fluid-bed feeding device of the utility model design, compared with the prior art, Have reasonable in design, outside the winding-up tank, do not establish in addition air compensation device; Injection by injection tube in the tank is done With, transportation performance is good, utilizes the gap adjustment range between YE adjusting cone governor and horn mouth Broadness can realize fine setting, and energy fine adjustment powder delivering amount by electronic formula electric actuator, is convenient to reality The characteristics such as existing microcomputer automatic control powder delivering amount.

Claims (5)

1, the adjustable fluid bed charging gear of the utility model, the composition of this device is in winding-up jar (1) duff pipe (2) to be housed, being divided into by fluidisation plate (8) in winding-up jar (1) bottom is powders flowing purification chamber (7), with be down the streaming tank of fluidisation air chamber (9), the air inlet pipe (12) that communicates with fluidisation air chamber (9) is housed on the outer wall of fluidisation air chamber (9), it is characterized in that in the winding-up jar (1) the charging aperture of the duff pipe of adorning (2) be flared horn, on the diapire of winding-up jar (1), a central tube (6) upward fixedly is housed with fluidisation plate (8), in central tube (6), be set with to the lower end of duff pipe (2) flared horn, the winding-up pipe (4) following and adjuster (13) joins, cone governor (3) is equipped with in upper end at winding-up pipe (4), winding-up pipe (4) Duan Bichu that the middle and lower part is sleeved in the air chamber (11) has pore (15), in winding-up jar (a 1) lower end support (10) is housed, in the lower end of support (10) adjuster (13) is housed, air chamber (11) is housed in support (10), air inlet pipe (12) is housed on air chamber (11).

2,, it is characterized in that horn mouth, cone governor (3), winding-up pipe (4) and the adjuster (13) of duff pipe (2) should be installed on the same central axis according to the described device of claim 1.

3,, it is characterized in that between central tube (6) and air chamber (11) and the winding-up pipe 4 sealing ring (5) being housed all according to the described device of claim 1.

4,, it is characterized in that adjuster (13) is a manual adjustments according to the described device of claim 1.

5,, it is characterized in that in adjuster (13) lower end YE (14) being housed is motorized adjustment according to the described device of claim 1.

Images