Atomizing nozzle for hazardous waste quenching spray gun

Abstract

The utility model relates to an atomizing nozzle, in particular to an atomizing nozzle for a hazardous waste quenching spray gun, which comprises a spray head, a distribution cavity and a mixing cavity are sequentially arranged inside the spray head, and a plurality of atomizing holes communicated with the mixing cavity are arranged at the top of the spray head. The distribution body is arranged in the distribution cavity, a plurality of gas guide spiral grooves are formed in the outer circle face of the distribution body, a water inlet cavity and water spraying holes communicated with the water inlet cavity are formed in the distribution body, and the gas guide spiral grooves are used for enabling gas to form high-speed rotating gas flow; the flow deflector is spiral, is arranged in the water inlet cavity and is used for enabling water to form high-speed rotating water flow, and the high-speed rotating water flow enters the mixing cavity to be mixed with the high-speed rotating air flow; wherein the high-speed rotating water flow collides with the high-speed rotating air flow to form fog drops and the fog drops are sprayed out through the spray holes. According to the atomizing nozzle, gas and water are mixed after rotating at a high speed through the gas guide spiral groove and the spiral flow deflector, and are atomized through intense collision, so that flue gas can be vaporized by 100%, and liquid flow is prevented from being formed in a quench tower.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of atomizing nozzles, especially a kind of atomizing nozzle for hazardous waste quenching spray gun. BACKGROUND

[0002] Atomizing nozzle is mostly atomized by high-pressure air, such as CN 201427096Y discloses airflow type ultrasonic atomizing nozzle, which includes nozzle body, liquid supply inner cavity is arranged radially in lower part of nozzle body, nozzle body upper part is arranged radially with nozzle, liquid supply inner cavity outlet end is radially connected with gradually reduced liquid channel, liquid channel top end is arranged with oscillation cavity, oscillation cavity top end is communicated with nozzle, nozzle body upper part is connected with oscillation cavity corresponding transverse position with gas supply tube with gas supply inner cavity and gas supply throat, gas supply throat is communicated with oscillation cavity. The atomizing nozzle due to gas and liquid flow channel is small, resulting in small atomization amount, cannot meet the demand of quenching, liquid flow can be formed in quenching tower. SUMMARY

[0003] To solve the above-mentioned problem of small atomization amount that cannot meet the quenching demand, the utility model provides a kind of atomizing nozzle for hazardous waste quenching spray gun, and the specific technical scheme is as follows:

[0004] A kind of atomizing nozzle for hazardous waste quenching spray gun, comprising: spray head, the inside of the spray head is sequentially provided with distribution cavity and mixing cavity, the top of the spray head is provided with a plurality of spray orifices communicated with the mixing cavity;Distribution body, which is arranged in the distribution cavity, and the outer circular surface is provided with a plurality of gas guide helical grooves, the inside of the distribution body is provided with water inlet cavity and water injection hole communicated with the water inlet cavity, the gas guide helical groove is used to form high-speed rotating gas flow;And flow guide vane, the flow guide vane is spiral, arranged in the water inlet cavity, used to form high-speed rotating water flow and enter the mixing cavity and mix with high-speed rotating gas flow;Wherein, the high-speed rotating water flow and the high-speed rotating gas flow collide to form mist and are sprayed out through the spray orifice.

[0005] Preferably, the spray orifice is inclined.

[0006] Preferably, the cross-sectional area of the gas guide helical groove is not less than 20mm 2 .

[0007] Preferably, the pitch of the gas guide helical groove is 10-120mm, and the rotation is 0.15-0.35 turns.

[0008] Preferably, the flow guide vane rotates 180°.

[0009] Preferably, the bottom of the spray head is provided with a first sealing groove;The top of the distribution body is provided with a second sealing groove.

[0010] Preferably, the bottom of the spray head is provided with internal thread.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The atomizing nozzle for the hazardous waste quenching spray gun mixes the gas and water after high-speed rotation through the gas guide spiral groove and the spiral guide vane, atomizes through violent collision, can make the flue gas 100% vaporization, avoids forming liquid flow in the quenching tower. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the sectional view of the application;

[0014] Figure 2 is the top view of the application;

[0015] Figure 3 is the structural schematic view of the application;

[0016] Figure 4 is the structural schematic view of the distribution body;

[0017] Figure 5 is the sectional view of the distribution body and the guide vane assembly;

[0018] Figure 6 is the front view of the guide vane;

[0019] Figure 7 is the perspective view of the guide vane. DETAILED DESCRIPTION

[0020] The utility model will be further described in connection with the drawings.

[0021] As Figures 1 to 7 shown, an atomizing nozzle for a hazardous waste quenching spray gun, including the spray head 1, distribution body 2 and guide vane 3, the inside of spray head 1 is equipped with distribution cavity 13 and mixing cavity 12 in proper order, the diameter of distribution cavity 13 is greater than the diameter of mixing cavity 12, the top annular array of spray head 1 is equipped with six spray holes 11, and the spray hole 11 is inclined to set, and the inclined spray hole 11 can expand the spray range, which is beneficial to form diffusion. Distribution body 2 is installed in distribution cavity 13, and abuts against the top of mixing cavity 12, and the outer circular surface of distribution body 2 is annularly arranged with eight gas guide spiral grooves 21, which are communicated with distribution cavity 13 and mixing cavity 12 respectively, and the gas guide spiral groove 21 is used to make the gas form a high-speed rotating gas flow; the center of distribution body 2 is provided with a water inlet cavity 23 and a water spray hole 22, the diameter of water inlet cavity 23 is greater than the diameter of water spray hole 22, and the water spray hole 22 is communicated with mixing cavity 12. The guide vane 3 is spiral, and the guide vane 3 is installed in the water inlet cavity 23, which is used to make the water form a high-speed rotating water flow and enter mixing cavity 12 to mix with the high-speed rotating gas flow; the high-speed rotating water flow collides with the high-speed rotating gas flow to form mist droplets and is sprayed out through the spray hole 11.

[0022] The pitch of the air guide helical groove 21 is 100 mm, and it rotates 0.25 turns, and the cross-sectional area of each air guide helical groove 21 is 24 mm 2 , and the maximum through compressed air is 100 Nm 3 / h.

[0023] The flow guide piece 3 is a thin piece rotated by 180°, and the maximum flow rate is 6 m 3 / h.

[0024] The bottom of the spray head 1 is provided with an internal thread 14, that is, the internal thread 14 is located at the top of the distribution cavity 13, which is used to connect with the spray gun, so that the installation is convenient, simple, and occupies small space. The bottom of the spray head 1 is provided with a first sealing groove 15, which is used to install a sealing ring to realize the sealing between the spray head 1 and the spray gun. The top of the distribution body 2 is provided with a second sealing groove 24, and a sealing ring is installed in the second sealing groove 24, which is used to realize the sealing between the distribution body 2 and the spray gun, so that the water inlet and the air inlet do not interfere with each other.

[0025] The atomizing nozzle is fixed on the spray gun through the internal thread 14, the water inlet cavity is communicated with the water outlet of the spray gun, and the distribution cavity 13 is communicated with the air inlet of the spray gun.

[0026] The atomizing nozzle is used for cooling the quenching tower in the hazardous waste incineration industry, and the temperature of flue gas is reduced from 550℃ to 200℃, which has very good atomizing performance. The medium of the nozzle is water, and the water can contain a certain amount of salt.

[0027] The atomizing nozzle is a gas-liquid two-phase flow nozzle, and the gas is compressed air, and the volume ratio of gas to liquid is less than 20:1.

[0028] The nozzle distribution body 2 adopts a helical groove structure on the outside, and the compressed air becomes a high-speed rotating gas flow after passing through it. Similarly, at the central part of the distribution body 2, the water flow is made to rotate at high speed by the flow guide piece 3, and then enters the gas-water mixing cavity 12 through the water injection hole 22. The high-speed rotating gas and water collide violently in the mixing chamber, so that the atomized droplets are smaller than 50 microns, and the atomized droplets are sprayed into the quenching tower in a diffuse mist state. After the atomized droplets are mixed with high-temperature flue gas, they can be 100% vaporized, avoiding the formation of liquid flow, salt slag, etc. in the quenching tower, which does not affect the operation and will not corrode the equipment.

[0029] The nozzle can meet the quenching requirements of a 15,000-ton / a hazardous waste incineration production line, has good atomizing performance, good cooling effect, and will not produce water flow in the quenching tower, which does not affect the operation.

[0030] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative efforts, and these embodiments will all fall within the protection scope of the claims of the present application.

Claims

1. An atomizing nozzle for a hazardous waste quench lance, characterized by, The utility model relates to a high-speed rotating air-water atomizer, which comprises the following parts: a spray head (1), the inside of the spray head (1) is sequentially provided with a distribution cavity (13) and a mixing cavity (12), the top of the spray head (1) is provided with a plurality of spray holes (11) communicated with the mixing cavity (12); a distribution body (2) is arranged in the distribution cavity (13), and the outer circular surface of the distribution body (2) is provided with a plurality of air guide helical grooves (21), the inside of the distribution body (2) is provided with a water inlet cavity (23) and a water spray hole (22) communicated with the water inlet cavity (23), the air guide helical groove (21) is used for making the gas form a high-speed rotating air flow; and a guide vane (3) is arranged in the water inlet cavity (23) and is in a spiral shape, which is used for making the water form a high-speed rotating water flow and entering the mixing cavity (12) to mix with the high-speed rotating air flow; wherein, the high-speed rotating water flow and the high-speed rotating air flow collide to form mist drops and are sprayed out through the spray hole (11).

2. An atomizing nozzle for a hazardous waste quench lance according to claim 1 wherein, The spray hole (11) is arranged in an inclined manner.

3. An atomizing nozzle for a hazardous waste quench lance according to claim 1 wherein, The sectional area of the air guide helical groove (21) is not less than 20mm2.

4. An atomizing nozzle for a hazardous waste quench lance according to claim 1 or 3, wherein The pitch of the air guide helical groove (21) is 10-120mm, and the rotation is 0.15-0.35 turns.

5. An atomizing nozzle for a hazardous waste quench lance according to claim 1 wherein, The guide vane (3) rotates 180 degrees.

6. An atomizing nozzle for a hazardous waste quench lance according to claim 1 wherein, The bottom of the spray head (1) is provided with a first sealing groove (15); the top of the distribution body (2) is provided with a second sealing groove (24).

7. An atomizing nozzle for a hazardous waste quench lance according to claim 1 wherein, The bottom of the spray head (1) is provided with an internal thread (14).

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