SU727946A1 - Apparatus for fire neutralisation of wastes - Google Patents

Description

(54) DEVICE FOR FIRE DECOMPORTING WASTE

I

The invention relates to heat treatment devices for industrial wastes and can be used in the chemical, petrochemical, and other industries.

Fire disposal devices are known, which contain an incineration chamber and are equipped with waste supply devices in the regular state l.

However, it is not possible to dispose of waste water and suspensions containing suspended mineral impurities by known devices due to clogging of spraying devices with these impurities.

The closest to the invention to the technical essence and the achieved effect is a device for fire disposal of waste containing a cyclone chamber with an upper release of gases, equipped with tangentially positioned burners, a radial of installed nozzles and permability, and a bar

bota.zhnuyu bath placed in the bottom of the cyclone chamber,

In this design of the device, the ablation of unburned fine particles by flue gases and the accumulation of large particles in a bubbling bath, due to the presence of gaseous products in the cyclone chamber, occurs. The accumulation of large particles in the bubbling bath can lead to coking, burning the bath grate. Dry hot minerals or their melt flowing down the chamber can get into the Bi bubble bath, which contributes to the risk of explosion.

The purpose of the invention is to improve the efficiency and reliability of the process during the disposal of waste water containing minerals.

0

This goal is achieved by the fact that in the proposed device for the fire disposal of waste containing a cyclone chamber with a phantom vyushkom

the basics, tangentially located go-g turnips, radio-mounted nozzles and pinch, and a bubbling bath located in the bottom of the cyclone chamber, the bubbling bath is made in the form of a ring with an internal diameter equal to O, O, and the outer diameter equal to Ijl-lpS of the clamping diameter, and the barbathe bath is separated from the burners at a distance of 0.2 to 0.5 of the internal diameter of the cyclone chamber.

The expansion of the bubbling bath in the form of a ring with an inner diameter equal to 0.8-1.0 pinch diameters, is due to the fact that the rotational velocity level is low at the diameter of the cyclone chamber less than 0.8 pinch diameter and the particle fragmentation effect is low. melting from the bubble bath, diminished-20

It happens, and when performing a bubbling bath with an inner diameter of more than 1.0, the pinch diameter limits the mirror area of the bubbling bath. As a result, the device performance decreases.

The outer diameter of the bubble bath should be at least 1 D diameter due to aa reduction in the area of the bubble bath and, consequently, its capacity, and not more than 1.3 pinch diameters, since. in the wall zone behind this size, the level of rotational speeds drops sharply, which entails 35 a deterioration of the crushing and heat treatment of particles,

The position of the burners above the bubble bath should be no less than 0.2 of the inner diameter of the cyclone band and the prevention of the inhibiting effect of the foam layer over the bubble bath on the flare of combustible fuel and no more than 0.5 of the inner diameter of the cyclone chamber to create a sufficient 45. influence of the torch on the mirror of the bubbling bath.

The drawing shows schematically the structure of the device for the fire disposal of waste.

The device contains a cyclone chamber 1 with tangentially dispersed burners 2, radially mounted nozzles 3 and pinch 4 and b of the car bath 5, having a grill 6, outer wall 7, damping volume 8, fitting 9 and 10 for introducing bubbling agent and suspension, respectively.

Between the outer wall of the bubbling bath and the inner wall of the cyclone chamber in the bottom of the latter there is a fitting 11 for the view of mineral products.

The device works as follows.

Through tangentially located burners 2, fuel and air are supplied to the cyclone chamber 1.

Combustion products form a vortex flow, in which the maximum velocity lies in the area of pinch diameter. Through the nozzles 3, wastewater is introduced into the cyclone chamber, which is a solution of mineral substances. When it enters the vortex flow of hot combustion products, the wastewater evaporates, the organic impurities contained in them are oxidized, and the mineral substances absorbed from the solution melt and flow along the walls of the cyclone chamber.

Wastewater, which is a suspension of M1I suspended mineral particles in water, flows through fitting 1O into the damping volume 8 of the bubbling bath 5. This volume is necessary to maintain a constant level above the lattice 6 of the bubbling bath. A bubbling agent is supplied through the grill 6, supplied by the choke 9. Due to the bubbling, the suspensions are opened. A bubbling bath has the shape of a ring, with an internal diameter of not more than 1, 3 pinch diameters. This allows the pulverized slurry to enter the zone of maximum speeds of the combustion products. The organic impurities of the droplet water droplets burn out, and the mineral particles undergo firing treatment and do not have time, due to the high rates of combustion products, to return to the bath. They are thrown onto the walls by centrifugal force, mixed with the melt formed from the feed through the solution, burned and melted when contacted by this melt. Thus, the location of the barb. Holding bath between 0.8 and 1.3 pinch diameters leads to the ingress of droplets and particles into the zone of maximum velocities and to an increase in the effect of neutralization. The upper outer section of the outer wall of the bubbling bath is located at a distance of not more than 0.5 of the internal diameter of the cyclone chamber from the burners to achieve the maximum temperature drop of the dropout zone from the mirror. Lower limit distance

Claims (1)

Claim A device for fire neutralization of waste containing a cyclone chamber with an upper gas outlet, tangentially located burners, radially mounted nozzles and pinch, and a bubble bath located in the bottom of the cyclone chamber, about. Including that, in order to increase the efficiency and reliability of the process during the neutralization of wastewater containing suspended minerals, the bubble bath is made in the form of a ring with an inner diameter equal to 0.8-1.0 diameters. пере pinch ,, and an outer diameter equal to 1.1-1.3 of the diameter of the pinch, and the bubble bath is separated from the burners at a distance of 0.2-0.5 of the inner diameter of the cyclone chamber. 15 Sources of information taken into account in the examination. 1. Shurygin A.P. and Bernadiner Μ. I. Fire neutralization of industrial wastewater. Kiev, Technique, 1976. ²⁰ 2. Copyright certificate of the USSR No. 506728 cl. F 23 G 7/04, 1976 (prototype). ЦНИИПЙ Order 1114/39 Circulation 619 Subscribed Branch of PPP Patent, Uzhhorod, st. Project, 4