CN209508309U - A kind of Ou Yelu vertical furnace top spraying device - Google Patents

Abstract

The utility model discloses a kind of Ou Yelu vertical furnace top spraying devices, including inner tube and outer tube, water inlet pipe is arranged in inner tube one end, atomizer is connected to by screw thread and sealing ring in the inner tube other end, cooling jacket is set in the installing of inner tube outer spacer, on both sides of the middle in cooling jacket is respectively set partition and cooling jacket is divided into two parts circulating water cavity up and down, the cyclic water channel for linking up circulating water cavity up and down is respectively set in the divider ends of atomizer two sides, circulating water inlet and circulating water outlet pipe is respectively set in the end of circulating water cavity up and down upper and lower close to the water inlet pipe, resistance to material is set between cooling jacket and the outer tube, close to the recirculated water into, sealing flange is arranged in the outer tube end of outlet pipe.The utility model is able to solve short water injector service life, the easy scaling loss of water injector, the non-uniform problem of atomization.

Description

A kind of Ou Yelu vertical furnace top spraying device

Technical field

The utility model relates to a kind of Ou Yelu vertical furnace top spraying devices.

Background technique

The predecessor of Ou Yelu is that COREX furnace is moved from Baosteel Luojing to eight steel as state-of-the-art COREX in the world After a series of process and technology innovation, has the technology features of itself, therefore COREX furnace is renamed as Ou Yelu.For COREX top coal gas padding washing device and adjustable Venturi Scrubber are transformed into weight by the energy-saving and environment-friendly function of realization, Ou Yelu Power dedusting and dry-dedusting system.Original COREX shaft furnace wet gas cleaning is replaced using dry method dust gas purification process Technique, if meeting working of a furnace fluctuation, erects stock gas under the conditions of unusual service condition by 150~280 DEG C of range of shaft furnace furnace roof normal working temperature Temperature can reach 600 DEG C, since dry method dust cloth bag can only adapt to 200 DEG C or so of working condition, otherwise just by scaling loss cloth bag Or shorten the service life of bag filter, influence gas quality and the normal production of Ou Yelu.The technical side at Ou Yelu blow-on initial stage Case is water injector to be installed at the top of shaft furnace, but the water injector service life is short, in the hot environment and temperature alternating of shaft furnace furnace roof Working condition under the easy scaling loss of water injector, water injector ontology cracking so that can not normal use, influence normally to produce.Together When water injector liquid water can not be made effectively to be atomized, inhomogeneous cooling is even, and water cannot uniformly be mixed with coal gas, reduction is not achieved The effect of gas temperature.

Summary of the invention

The purpose of this utility model is to provide a kind of Ou Yelu vertical furnace top spraying devices, are able to solve the water injector longevity Order short, the easy scaling loss of water injector, the non-uniform problem of atomization, it is ensured that the vertical furnace top spray water installations service life is long, can adapt to shaft furnace The working condition of top temperature high temperature and alternation, uniformly, the resistance to material of protection furnace roof prevents furnace charge bonding and bag-type dust equipment for atomization Damage.

Purpose of the utility model is realized as follows: a kind of Ou Yelu vertical furnace top spraying device, including inner tube and Outer tube, inner tube one end are arranged water inlet pipe, are connected to atomizer by screw thread and sealing ring in the inner tube other end, outside inner tube Cooling jacket is set in spacer sleeve installing, and the on both sides of the middle in cooling jacket is respectively set partition and is divided into cooling jacket up and down The recirculated water for linking up circulating water cavity up and down is respectively set in two parts circulating water cavity, the divider ends of atomizer two sides Circulating water inlet and recirculated water water outlet is respectively set close to the end of the circulating water cavity up and down upper and lower of the water inlet pipe in road Pipe, is arranged resistance to material between cooling jacket and the outer tube, the outer tube end close to the recirculated water inlet tube and outlet tube is arranged Sealing flange；The nozzle, including nozzle core and nozzle housing pass through in nozzle housing upper part inner peripheral of cylinder barrel shaped Internal screw thread links together with the nozzle core being fitted in nozzle housing, and external screw thread, nozzle housing are arranged on nozzle housing outer wall Truncated cone-shaped cavity and cylindrical hole for water spraying is respectively set in bottom centre from top to bottom；Nozzle core cylinder in T shape, spray Intake antrum is set in mouth core top, four water outlet circular holes, nozzle core and nozzle housing are set on four peripheral wall of lower part of intake antrum Between constitute circle ring chamber, water outlet circular hole is connected with circle ring chamber, and water chamber, water chamber and institute are arranged in nozzle core bottom Mutually closing separates between the intake antrum stated, and four intake chambers are arranged in a pair two-by-two on the periphery wall of water chamber, wherein having two A intake chamber along water chamber it is same it is radial arrange, another two intake chamber along water chamber the mutually opposing cloth of tangential direction It sets, the bottom surface of nozzle core is in contact with the truncated cone-shaped cavity top surface periphery.

The features such as the utility model can be realized high temperature resistant, and the service life is long, water can be made to be atomized well.Spraying device passes through Sealing large flange and shaft furnace carry out bolt seal and are connected and installed in its top, when top temperature raising needs to cool down, high pressure water Stream makes high pressure water flow atomize the liquid into ejection by the spray nozzle of water inlet pipe and spraying device inner casing front end, makes mist pearl even suspension In coal gas, reach and be uniformly distributed in coal gas of high temperature, achievees the purpose that coal gas reduces temperature.Pass through circulating water structure and resistance to material The duplicate protection of structure extends the present apparatus service life.Recirculated cooling water passes in and out water cavity partition and recirculated cooling water access way institute The disengaging water cavity of composition, cooling entire spraying device, has the function that the stable operation under high temperature environment of entire spraying device.It is resistance to Material structure plays the purpose of protection cooling water shell and entire spraying device.

Ou Yelu vertical furnace top spraying device, which has the feature that, installs resistance to material structure on spraying device ontology, improve spray Mist device ability resistant to high temperatures.Devise the cooling structure of bulk circulation water, can effectively by spraying device in high temperature ring The heat of border lower body is taken out of, effectively cools body construction and improves service life.Pass through the structural adjustment of atomizer. Atomised spray area coverage is big.The maximum atomization diameter of atomizer, can be more fully mixed with coal gas up to 3um-4um, favorably In coal gas cooling tune amount, and in entire water variation range, atomizing particle is held essentially constant.Significant energy conservation, it can be Micro-atomizing is realized under lower hydraulic condition.Ensure that bag filter plays peak efficiency.For bag filter, drop Low gas temperature improves the dry method dust cloth bag service life within OK range.5, water adjusting range is little, adjusts the pressure of water Power, spraying water can continuously adjust between design maximum flow and zero.Such runoff investigation range, can be in production status When unstable, amount of water sprayed is conveniently adjusted by regulating system, and in entire water variation range, atomizing particle is kept substantially It is constant.6, it is strong to flutter the ability of catching for coal gas, cools down high-efficient, and atomization grain is tiny, and the speed for leaving spray head is fast, apart from spray head 1.2M Shi Yiran can reach 25-30m/s, and the water fog particle of such high speed makes significant component of coal gas by effective elastic collision Agglomeration.7, this spraying device is real using the speed difference and pressure difference formed with periphery coal gas in shaft furnace due to special design Existing coal gas is mixed with tiny droplet and vapor and reflection the most effective of agent, is the ideal chose of uniform decrease in temperature.8, additional control System processed guarantees that gas outlet temperature maintains range appropriate according to the amount of water sprayed of the variation automatic adjusting jet-gun of gas temperature Interior, control system is stable, reliable, accurate.

Detailed description of the invention

The utility model is described in further detail below in conjunction with attached drawing.

Fig. 1 is the main view the schematic diagram of the section structure of the utility model；

Fig. 2 is the FF the schematic diagram of the section structure in Fig. 1；

Fig. 3 is the main view the schematic diagram of the section structure of the utility model spray nozzle；

Fig. 4 is the AA the schematic diagram of the section structure in Fig. 3.

Specific embodiment

A kind of Ou Yelu vertical furnace top spraying device, as shown in Figure 1 and Figure 2, including inner tube 24 and outer tube 23, inner tube 24 Water inlet pipe 20 is arranged in one end, and the inner tube other end is interior to be connected to atomizer, inner tube outer spacer by screw thread and sealing ring Cooling jacket 25 is set in installing, and the on both sides of the middle in cooling jacket 25 is respectively set partition 28 and is divided into cooling jacket up and down The cyclic water channel for linking up circulating water cavity up and down is respectively set in two parts circulating water cavity, the divider ends of atomizer two sides 29, circulating water inlet 21 and recirculated water is respectively set in the end of the circulating water cavity up and down upper and lower close to the water inlet pipe 20 Resistance to material 26 is arranged in outlet pipe 27 between cooling jacket 25 and the outer tube 23, close to the recirculated water inlet tube and outlet tube Sealing flange 22 is arranged in 23 end of outer tube.

As shown in Figure 3, Figure 4, the nozzle, including nozzle core 1 and nozzle housing 9, in cylinder barrel shaped nozzle housing 9 its Top inner peripheral is linked together by internal screw thread 10 with the nozzle core 1 being fitted in nozzle housing, is set on nozzle housing outer wall External screw thread 8 is set, to connect water inlet tube body.Be respectively set from top to bottom in nozzle housing bottom centre truncated cone-shaped cavity 6 with And cylindrical hole for water spraying 7；Intake antrum, the lower part four of intake antrum is arranged in nozzle core top in the cylinder in T shape of nozzle core 1 Four water outlet circular holes 2 are set on peripheral wall, circle ring chamber 3 is constituted between nozzle core and nozzle housing, are discharged circular hole 2 and circle ring chamber 3 are connected.Water chamber 4 is set in nozzle core bottom, and mutually closing separates between water chamber 4 and the intake antrum.Water outlet Four intake chambers are arranged in a pair two-by-two on the periphery wall of chamber 4, wherein there are two intake chambers 5 along the same radial cloth of water chamber It sets, tangential direction mutually opposing arrangement of the another two rotation direction intake chamber 11 along water chamber, the bottom surface of nozzle core 1 and the circle 6 top surface periphery of platform shape cavity is in contact.

By improving the structure of nozzle core and nozzle housing, liquid is justified by 4 water outlets that the middle and lower part of nozzle core is arranged Hole 2, the liquid of high speed and high pressure rapidly enter in nozzle core and the circle ring chamber 3 of nozzle housing formation, and liquid enters into intake chamber 5 And rotate and thrown away to periphery, it rotates by centrifugal force to central cavity, further speeds up rotation type atomization.When fluid flow very Small, when centrifugal force is greater than surface tension of liquid, a small amount of big drop that 6 edge of truncated cone-shaped cavity is dished out directly splits into liquid at this time Drop.When flow and revolving speed increase, liquid is drawn as a fairly large number of Filamentous jet stream, and liquid stream is extremely unstable, and liquid leaves rotary table Droplet is separated into since rubbing action occurs with the gas of surrounding after 6 certain distance of shape cavity.Here it is filiforms to isolate into Drop.When revolving speed and flow increase again, brin is linked to be film, as liquid film extends to the outside into thinner liquid film, and with very high Speed occurs friction with the gas of surrounding and separates atomization, splits into drop by film-form.

Claims (1)

1. a kind of Ou Yelu vertical furnace top spraying device, including inner tube and outer tube, it is characterized in that: water inlet is arranged in inner tube one end Pipe, the inner tube other end is interior to be connected to atomizer by screw thread and sealing ring, and cooling jacket is set in the installing of inner tube outer spacer, On both sides of the middle in cooling jacket is respectively set partition and cooling jacket is divided into two parts circulating water cavity up and down, atomizer The cyclic water channel for linking up circulating water cavity up and down is respectively set in the divider ends of two sides, follows close to the upper and lower of the water inlet pipe Ring water cavity end upper and lower is respectively set circulating water inlet and circulating water outlet pipe, cooling jacket and the outer tube it Between resistance to material is set, close to the outer tube end of the recirculated water inlet tube and outlet tube, sealing flange is set；The nozzle, packet Nozzle core and nozzle housing are included, by internal screw thread and is fitted to nozzle housing in nozzle housing upper part inner peripheral of cylinder barrel shaped Interior nozzle core links together, and external screw thread is arranged on nozzle housing outer wall, sets respectively from top to bottom in nozzle housing bottom centre Set truncated cone-shaped cavity and cylindrical hole for water spraying；Intake antrum is arranged in top in nozzle core cylinder in T shape, nozzle core, Four water outlet circular holes are set on four peripheral wall of lower part of intake antrum, circle ring chamber, water outlet circle are constituted between nozzle core and nozzle housing Hole is connected with circle ring chamber, and water chamber is arranged in nozzle core bottom, mutually closes between water chamber and the intake antrum It separates, four intake chambers are arranged in a pair two-by-two on the periphery wall of water chamber, wherein there are two intake chambers along the same of water chamber One radial arrangement, tangential direction mutually opposing arrangement of the another two intake chamber along water chamber, the bottom surface of nozzle core and described Truncated cone-shaped cavity top surface periphery is in contact.