CN214552092U

CN214552092U - Quench tower with quenching spray gun and unpowered ash removal device

Info

Publication number: CN214552092U
Application number: CN202023192866.7U
Authority: CN
Inventors: 程强祥; 陶经坚; 乔德友; 朱海滨; 杨晓磊; 方鹏程
Original assignee: Shanghai Yude Environment Protection Engineering Co ltd
Current assignee: Shanghai Yude Environmental Protection Co.,Ltd.
Priority date: 2020-12-27
Filing date: 2020-12-27
Publication date: 2021-11-02
Anticipated expiration: 2030-12-27

Abstract

The utility model discloses a quench tower with a quench spray gun and a unpowered ash removal device, which comprises a quench tower body, a quench spray gun and a movable ash barrel, wherein the quench spray guns are three at intervals of 120 degrees to ensure that the waste gas is fully contacted with cooling water; quench tower body design is cylinder console mode structure, is equipped with back taper scattered grey inclined plane inside, and sedimentary flying dust can fall to the ash hole of below along the inclined plane under the action of gravity on the inclined plane, and the ash hole is equipped with ash discharging flashboard door, falls to the ash bucket of below through this flashboard door, and the quench tower is equipped with four mobilizable ash buckets all around altogether, and the quench tower below is equipped with the removal track, and this track of ash bucket accessible moves in and shifts out.

Description

Quench tower with quenching spray gun and unpowered ash removal device

Technical Field

The utility model relates to an industrial waste gas cools down technical field rapidly specifically is a take quench tower of rapid cooling spray gun and unpowered ash handling equipment.

Background

The smoke temperature of the hazardous waste incineration boiler is generally between 500 and 550 ℃, and the smoke is reduced from 500 ℃ to 200 ℃ within 1 second according to the requirement of the industry specification, therefore, a quenching tower is generally arranged at the outlet of the boiler to spray water in the quenching tower for cooling. The quenching tower is arranged. The quench tower arranges before the dust remover, so contains a large amount of dusts in the flue gas, and the quench tower is in the water spray cooling, and the dust in the flue gas can be collected and discharge bottom the quench tower under the effect of gravity, and the quench tower below can be equipped with screw conveyer usually, discharges the fly ash of collecting through screw conveyer. In actual operation, because the reason of spray gun atomization effect, the condition that often has the water drip takes place, and the water droplet can fall to the conveyer, carries the discharge simultaneously with the fly ash, all contains a large amount of acidic material in the hazardous waste burns the flue gas, as long as there is the water drip to take place, drips and will present strong acidity, produces comparatively serious corruption to the conveyer, shortens the life of conveyer greatly. If the conveyor fails during operation, the whole dangerous waste incineration system is stopped, and a large economic loss is caused to a disposal unit. And a large amount of industrial water is consumed in the rapid cooling process of the quenching tower, which also causes additional economic burden to a disposal unit.

Disclosure of Invention

An object of the utility model is to provide a take rapid cooling spray gun and unpowered dust collector's quench tower to solve the problem of proposing among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a take quench tower of rapid cooling spray gun and unpowered ash handling equipment, quench tower includes quench tower body, rapid cooling spray gun and ash handling equipment and constitutes, and a plurality of evenly distributed of rapid cooling spray gun is connected for the fastening connection on tower body upper portion, the quench tower body bottom is equipped with the ash inclined plane that looses of back taper, and the ash inclined plane bottom that looses of back taper is opened has a plurality of ash hole, and the ash hole is connected with ash handling equipment.

The utility model discloses an with the even upper portion of installing at the quench tower shaft of a plurality of quenching spray gun, the junction adopts pipe thread to connect and realizes sealed environment, cooling liquid and high temperature flue gas fully contact to the realization falls the flue gas within 200 ℃ from 500 ℃ in one second. The inverse cone-shaped ash dispersing inclined plane arranged at the bottom of the quenching tower body can enable fly ash deposited on the inclined plane to fall to an ash outlet below along the inclined plane under the action of gravity, and unpowered ash removal is realized through the section, so that the energy loss is reduced.

Furthermore, the quenching spray guns are three in number and are uniformly distributed on the upper part of the tower body at intervals of 120 degrees. The selection of three quenching spray guns for uniform distribution is determined after the spray radius of the spray guns and the radius of the quenching tower are comprehensively considered, the quenching spray guns are also used with a large amount of industrial water in the process of effectively cooling the flue gas, and in order to save cost as much as possible under the condition of meeting the working requirements, the three optimal selection schemes are finally determined.

Furthermore, the rapid cooling spray gun is a double-fluid spray gun, the rapid cooling spray gun comprises a liquid inlet, a gas inlet, a double-fluid nozzle, a gun body and a control valve, the liquid inlet and the gas inlet are arranged at the tail part of the gun body, the liquid inlet and the gas inlet are respectively provided with the control valve, and the double-fluid nozzle is arranged at the head part of the gun body. The cooling liquid sprayed by the normal spray gun can also play a role in cooling, but cannot be fully contacted with the waste gas to be cooled due to the overlarge liquid bead volume. In order to solve this problem, a two-fluid spray gun is chosen, fitted with a special two-fluid nozzle, which has the characteristic of fine, uniform atomized particles, ensuring complete evaporation, compared to conventional spray guns. The atomizing spray gun can ensure that the temperature of the flue gas is adjusted to a set value under the condition of no humidity, so that the amount of the flue gas entering the bag type dust collector is relatively reduced, and the power consumption of the bag type dust collector is reduced. The tail part of the gun body is provided with a control valve which can adjust the pressure of the input liquid and the pressure of the input gas, so that the input pressure of the two fluids can reach the optimal ratio, and the atomization is more sufficient.

Furthermore, the quenching spray gun is designed to be two-way water inlet, one way is industrial water, the other way is high-salinity wastewater, and each way is provided with a control valve group. The water consumption of flue gas cooling in-process is huge, in order to improve energy utilization, the utility model discloses select to utilize the high salt solution that produces among the follow-up wet deacidification process as the cooling water, high salt solution easily causes the jam in the use, so establish the industrial water of the same kind in addition and wash the pipeline, break away the jam. The two are switched under the pressure detection control, when the pressure reaches a design value, the situation that the spray gun is blocked is shown, the control valve group is switched to the industrial water at the moment, the high-salt water is closed, when the pressure is reduced to the design value, the resistance of the spray gun is reduced, the situation that the inside of the spray gun is not blocked is shown, the industrial water is closed again, and the high-salt wastewater is started.

Furthermore, the ash removing device comprises an ash discharge gate plate door, an ash bucket and a conveyor belt, the ash outlet is connected with the ash discharge gate plate door, the ash bucket is provided with a self-locking device, the ash bucket is fixed below the ash discharge gate plate door by the self-locking device, and the ash bucket is arranged on the conveyor belt. The utility model discloses collect the dust that the ash hole fell down with the ash bucket, the ash bucket adopts corrosion-resistant material to make, has solved the problem that traditional auger delivery chance was destroyed by the acid liquid that drips in the quench tower, and self-lock device on the ash bucket can fix the ash bucket in the below of flashboard door, ensures the leakproofness. The ash barrel limiting device is arranged on the conveyor belt, the ash barrel limiting device can guarantee the motion of the ash barrel on the conveyor belt, the ash barrel can accurately reach the designated position, and the stability of system operation is improved.

Further, the ash bucket is provided with a weighing device, the amount of dust in the ash bucket can be determined through the weighing device, when the weighing module displays the set weight, the fact that the fly ash in the ash bucket is collected is indicated, the conveyor belt can move the full ash bucket out to be changed into a new ash bucket, and the device avoids the situation that the ash bucket is weighed and the ash overflow is caused.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model discloses a high salt waste water has realized the cyclic utilization of resource as the cooling water, has reduced the loss of the energy. Simultaneously the utility model discloses replace traditional screw conveyer with unpowered dust collector and removed dust, greatly reduced the spoilage of equipment, improved the stability of the operation of whole dangerous system of burning.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the unpowered ash removal device of the present invention;

FIG. 3 is a schematic diagram of the quench gun distribution of the present invention;

FIG. 4 is a schematic structural view of an ash bucket discharge system of the present invention;

FIG. 5 is a schematic view of the structure of the blast gun of the present invention;

in the figure: 1-quenching tower body, 11-tower body, 12-air inlet, 13-air outlet, 14-inverted cone ash dispersing inclined plane, 15-ash outlet, 2-ash outlet shutter door, 3-ash barrel, 4-conveyor belt, 5-quenching spray gun, 51-liquid inlet, 52-gas inlet, 53-double-fluid nozzle, 54-gun body and 55-control valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

as shown in fig. 1 and 2, a quench tower with a quench spray gun and a unpowered ash removal device comprises a quench tower body 1, an ash discharge gate 2, an ash bucket 3, a conveyor belt 4 and a quench spray gun 5, wherein the quench tower body comprises a tower body 11, an air inlet 12, an air outlet 13, an inverted cone-shaped ash discharge inclined plane 14 and an ash discharge port 15, the air inlet 12 is installed at the top of the tower body 11, the air outlet 13 is installed at the lower part of the tower body 11, the inverted cone-shaped ash discharge inclined plane 14 is installed at the bottom of the tower body 11, the ash discharge port 15 is formed by uniformly distributing four annular round ports at the bottom of the tower body 11, the quench spray gun 5 is installed at the upper part of the tower body 11, the ash discharge gate 2 is installed at the ash discharge port 15, and the ash bucket 3 corresponds to the ash discharge port 15 and is placed above the conveyor belt 4. The utility model discloses an install the even upper portion at quench tower shaft 11 with a plurality of rapid cooling spray gun 5, the junction adopts pipe thread to connect to realize sealed environment, and cooling liquid obtains abundant contact with the high temperature flue gas. The bottom of the quenching tower body 1 is provided with the inverted cone-shaped ash dispersing inclined plane 14, so that the fly ash deposited on the inclined plane can fall to the ash outlet 15 below along the inclined plane under the action of gravity, unpowered ash removal is realized through the section, and the energy loss is reduced.

As shown in fig. 4, two conveyor belts 4 are respectively arranged on the conveyor belt 4 along the vertical direction and the horizontal direction by taking the center of the tower body 11 as the center, the ash barrels 3 are limited on the conveyor belt 4 and move to the position under the ash outlets 15 along with the conveyor belt 4, the four annular ash outlets 15 are uniformly distributed at intervals of 90 degrees, and the four ash barrels 3 and the ash outlets 15 on the conveyor belt 4 are in one-to-one correspondence at each time, so that the dust particles are ensured to accurately fall into the ash barrels 3. The ash barrel 3 is made of corrosion-resistant materials and can be in contact with acidic materials for a long time, the price of the ash discharging barrel 3 is low, and the replacement cost after damage is reduced. The annular distribution of the ash outlets 15 ensures that the fly ash falling from any angle can slide to the ash outlets 15 along the inverted cone-shaped ash-dispersing inclined surface 14.

As shown in fig. 3, 3 quenching lances 5 are uniformly distributed at 120 ° intervals at the upper part of the tower 11, which is a result obtained by considering the combination of the injection radius of such quenching lances 5 and the radius of the

tower

11, and 3 quenching lances 5 can completely cover the top view interface of the whole tower 11 at the most cost-effective condition, and if other lances are used, the optimal distribution scheme and the number of quenching lances 5 need to be determined again.

As shown in fig. 5, the quenching spray gun 5 is composed of a liquid inlet 51, a gas inlet 52, a two-fluid nozzle 53, a gun body 54 and a control valve 55, high-salt water enters the quenching spray gun 5 from the liquid inlet 51, when the inside of the quenching spray gun 5 is blocked, the internal pressure value of the quenching spray gun rises, and at the moment, a pressure sensor sends a signal to close the high-salt water channel, open the industrial water channel and flush the inside of the pipe and the gun body 54. After the flushing is finished, the pressure is reduced, the pressure sensor sends out a signal, the industrial water channel is closed, and the high-salt water channel is opened. Compressed air enters the quench lance 5 through the gas inlet 52 and the high salt water is ejected from the two-fluid nozzle 53 in an atomized state by the compressed air.

The utility model discloses a theory of operation: flue gas discharged by a boiler enters a quenching tower body 1 from an air inlet 12, high-salt water input by a quenching spray gun 5 is atomized under the action of input compressed air, atomized liquid is sprayed out to cool the flue gas, high-speed water mist particles are collided through effective elasticity, a part of dust particles are attached and collected and fall on an inverted cone-shaped ash scattering inclined plane 14 arranged at the bottom of a tower body 11, the dust attached and collected particles can slide to a bottom annular ash outlet 15 along the inclined plane under the influence of gravity and fall into an ash barrel 3 through an ash outlet gate 2, a weighing device in the full ash barrel 3 sends a signal, a conveyor belt 4 starts to operate to convey the ash barrel 3, the ash outlet gate 2 receives the signal to close a gate plate, a new ash barrel 3 is conveyed to the position right below the ash outlet 15 by the conveyor belt 4, a self-locking device on the ash barrel 3 fixes the ash barrel 3 below the ash outlet gate 2, the ash discharge gate 2 is opened, and the flue gas subjected to cooling treatment enters the next procedure from the gas outlet 13 below the tower body 11.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a take quench tower of rapid cooling spray gun and unpowered ash handling equipment which characterized in that: the quenching tower comprises a quenching tower body (1), a quenching spray gun (5) and an ash removal device, wherein the quenching spray gun (5) is uniformly distributed on the upper part of a tower body (11) and is connected with the tower body in a fastening manner, an inverted cone-shaped ash dispersing inclined plane (14) is arranged at the bottom of the quenching tower body (1), a plurality of ash outlets (15) are formed in the bottom of the inverted cone-shaped ash dispersing inclined plane (14), and the ash outlets (15) are connected with the ash removal device.

2. The quenching tower with quenching lance and unpowered ash removal device as claimed in claim 1, wherein: the quenching spray guns (5) are three in number and are uniformly distributed on the upper part of the tower body (11) at intervals of 120 degrees.

3. The quenching tower with quenching lance and unpowered ash removal device as claimed in claim 1, wherein: the rapid cooling spray gun (5) is a double-fluid spray gun, the rapid cooling spray gun (5) comprises a liquid inlet (51), a gas inlet (52), a double-fluid nozzle (53), a gun body (54) and a control valve (55), the liquid inlet (51) and the gas inlet (52) are installed at the tail of the gun body (54), the control valve (55) is installed at the liquid inlet (51) and the gas inlet (52) respectively, and the double-fluid nozzle (53) is installed at the head of the gun body.

4. The quenching tower with quenching lance and unpowered ash removal device as claimed in claim 3, wherein: the liquid inlet (51) is designed to be two-way water inlet, one way is industrial water, the other way is high-salinity wastewater, and each way is provided with a start-stop valve group.

5. The quenching tower with quenching lance and unpowered ash removal device as claimed in claim 1, wherein: the ash removing device comprises an ash discharging gate door (2), an ash barrel (3) and a conveyor belt (4), the ash discharging port (15) is connected with the ash discharging gate door (2), the ash barrel (3) is provided with a self-locking device, the ash barrel (3) is fixed below the ash discharging gate door (2) by the self-locking device, and the ash barrel (3) is arranged on the conveyor belt (4).

6. The quenching tower with quenching lance and unpowered ash removal device as claimed in claim 5, wherein: the ash bucket (3) is provided with a weighing device.