CN217411146U - Gas-liquid atomization spraying device - Google Patents

Abstract

The utility model discloses a gas-liquid atomization spraying device, which comprises a gas channel, a liquid channel and N spray heads, wherein N is a positive integer, the gas channel is arranged in the liquid channel, the spray heads are provided with an atomization cavity and a cavity wall forming the atomization cavity, the head part of the atomization cavity is communicated with the gas channel, the bottom part of the atomization cavity extends out of the liquid channel, and the spray heads are provided with hole parts communicating the atomization cavity with the liquid channel; the utility model discloses a gas-liquid atomization spray set can let the mixing material evenly wet, improves the mixing material pelletization and pelletization rate, and reduces the safe risk of mixing machine equipment operation, and simple structure, and is with low costs, and the usability is strong, and is effectual.

Description

Gas-liquid atomization spraying device

Technical Field

The utility model relates to a sintering mixing material technical field that adds water, in particular to a gas-liquid atomization spray set that is used for the sintering to mix quick-witted pelletization of machine.

Background

Along with the rapid development of related steel enterprises, steel enterprises are encouraged to conform to the current modernization development trend of the enterprises, and in the reformation development of the modern enterprises, the opportunities are mastered and the trends are favorable.

In actual production, the sintering mixer is continuously turned over under the driving action, sintering materials are mixed from the mixer, the materials are granulated and pelletized by adding water to moisten the materials, the materials are spirally turned over to the outlet of the mixer, and the materials are conveyed to a sintering ore tank by a belt conveyor to be distributed and sintered.

In the production process, water is added into the mixer due to the influence of water pressure and a nozzle, and the water is sprayed out of the water column shape when being added, so that the water is not uniformly added into the sintered and uniformly mixed material, and the granulation and balling rate of the uniformly mixed material is greatly reduced. Therefore, the mixed materials are often adhered to the inner wall of the mixer, and a large amount of the mixed materials cause vibration after the mixer is unbalanced, so that the stable operation of production and equipment is seriously influenced. There is therefore a need to devise a structure that addresses the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome foretell not enough, the utility model provides a gas-liquid atomization spray set can let the mixing material evenly wet, improves the mixing material pelletization balling rate, and reduces the safe risk of mixer equipment operation.

The utility model provides a pair of gas-liquid atomizing spray set, include: the spray head comprises a gas channel, a liquid channel and N spray heads, wherein N is a positive integer, the gas channel is arranged in the liquid channel, the spray heads are provided with atomizing cavities and cavity walls for forming the atomizing cavities, the head parts of the atomizing cavities are communicated with the gas channel, the bottom parts of the atomizing cavities extend out of the liquid channel, and hole parts for communicating the atomizing cavities with the liquid channel are arranged on the spray heads.

Furthermore, the hole part comprises a plurality of liquid inlet holes which are distributed in a circular array by taking the axis of the spray head as a central line.

Furthermore, the spray head is a concentric reducing spray head, and the inner diameter of the spray head is gradually increased from the head to the bottom.

Furthermore, the number of the spray heads is plural, and the plural spray heads are arranged at intervals along the axial direction of the gas channel.

Furthermore, an air flow adjusting ring is fixedly mounted at the head of the inner cavity of the spray head, a gap corresponding to the hole part is formed between the outer wall of the air flow adjusting ring and the wall of the inner cavity of the spray head, and the gap is positioned right above the hole part.

Further, still include axial parallel arrangement liquid pipe and trachea, the tube hole of liquid pipe constitutes liquid channel, the trachea is located the tube hole of liquid pipe, and tracheal tube hole constitutes gas passage, be provided with N venthole that sets up with N shower nozzle one-to-one on the trachea, be provided with N on the liquid pipe and go out the liquid hole that sets up with N shower nozzle one-to-one, the head outer wall of shower nozzle and the pore wall sealing connection of the venthole that corresponds, the bottom of shower nozzle stretches out from the play liquid hole that corresponds, and the outer wall of shower nozzle and the pore wall sealing connection of this play liquid hole.

Furthermore, an air inlet connecting flange is fixedly installed on the outer wall of the inlet of the air pipe, and an liquid inlet connecting flange is fixedly installed on the outer wall of the inlet of the liquid pipe.

Furthermore, a connector is fixedly mounted on the wall of the air outlet hole, the connector is provided with an internal thread through hole, and the head of the spray head is mounted on the internal thread through hole in a thread mounting mode.

Further, the air inlet of the air channel is communicated with a steam air source.

Further, the liquid pipe is a DN108mm seamless steel pipe, and the wall thickness of the liquid pipe is 3-4 mm; the air pipe is a DN57mm seamless steel pipe, and the wall thickness of the air pipe is 3-4 mm; the outer diameter of the head part of the spray head is 20mm, the outer wall thread is M20mm, the outer diameter of the bottom part of the spray head is 35mm, and the thickness of the spray head is 5 mm; the aperture of the liquid inlet hole is 5 mm.

The utility model has the advantages that: the gas-liquid atomization spraying device of the utility model effectively mixes air and water uniformly to humidify and sinter a mixed material, improves the pelletizing and balling rate of the mixed material, and overcomes the hidden trouble of equipment that the mixing machine aggregates to cause unbalanced vibration of a cylinder; the effect of steam is more obvious to the air supply use in the actual production process, and mixing material temperature obtains improving, carries the matter to sintering and falls this and all have very big promotion, the utility model discloses a gas-liquid atomization spray set simple structure, with low costs, the usability is strong, and is effectual.

Drawings

Fig. 1 is a schematic structural view of a gas-liquid atomization spraying device in an embodiment of the present invention;

fig. 2 is a sectional view of a gas-liquid atomization spray device in an embodiment of the present invention; and

fig. 3 is a schematic structural diagram of a nozzle according to an embodiment of the present invention.

In the figure, 1 is a liquid pipe, 2 is a gas pipe, 3 is a joint, 4 is a gas amount adjusting ring, 5 is a spray head, 6 is a liquid inlet hole, 7 is an external thread, 8 is an air inlet connecting flange, and 9 is a liquid inlet connecting flange.

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 efforts all belong to the protection scope of the present invention.

Fig. 1 is a schematic structural view of a gas-liquid atomization spraying device in an embodiment of the present invention. Fig. 2 is a sectional view of the gas-liquid atomization spray device in the embodiment of the present invention.

As shown in fig. 1 and fig. 2, the gas-liquid atomization spraying device for granulation and pelletizing of the sintering mixer in the present embodiment includes a liquid pipe 1, a liquid passage, a gas pipe 2, a gas passage, and a plurality of nozzles 5.

The outer wall of the inlet of the liquid pipe 1 is fixedly provided with a liquid inlet connecting flange 9 for connecting cooling water, and the pipe hole of the liquid pipe 1 forms a liquid channel. The liquid pipe 1 is provided with a plurality of liquid outlet holes which are arranged corresponding to the plurality of nozzles 5 one by one.

The gas pipe 2 is positioned in the pipe hole of the liquid pipe 1, and the axial direction of the gas pipe is parallel to the axial direction of the liquid pipe 1. An air inlet connecting flange 8 is fixedly arranged on the outer wall of the inlet of the air pipe 2, and the pipe hole forms an air channel. The air inlet of the air channel is communicated with a steam air source. The air pipe 2 is provided with a plurality of air outlets which are arranged corresponding to the plurality of nozzles 5 one by one. The wall of each air outlet is welded with a joint 3, the joint 3 is provided with an internal thread through hole communicated with the gas channel, and the joint 3 is a first nut.

Fig. 3 is a schematic structural diagram of a nozzle according to an embodiment of the present invention.

As shown in fig. 1 to 3, a plurality of shower heads 5 are provided at intervals in the axial direction of the gas passage. Specifically, the number of the spray heads 5 is determined by the requirement of the water adding amount for pelletizing the sintering mixture. The spray head 5 is provided with an atomizing cavity and a cavity wall forming the atomizing cavity, the head of the atomizing cavity is communicated with the gas channel, and the bottom of the atomizing cavity extends out of the liquid channel. Specifically, the head of shower nozzle 5 has external screw thread 7, and the mode that 5 heads of shower nozzle pass through the screw thread installation is installed on the internal thread through-hole, and the bottom stretches out from going out the liquid hole, and the outer wall welding of shower nozzle 5 is on the pore wall of going out the liquid hole. The nozzle 5 is a concentric reducing nozzle 5, and the inner diameter of the nozzle is gradually increased from the head to the bottom.

The nozzle 5 is provided with a hole part for communicating the atomizing chamber with the liquid passage, and the hole part is positioned between the outer wall of the air pipe 2 and the outer wall of the liquid pipe 1. The hole part comprises a plurality of liquid inlet holes 6, and the liquid inlet holes 6 are distributed in a circular array by taking the axis of the spray head 5 as a central line. In the present embodiment, the number of the liquid inlet holes 6 is four. The medium water is ejected from the four liquid inlet holes 6 and mixed with the gas ejected from the head of the spray head 5 after collision. The head of the inner cavity of the nozzle 5 is fixedly provided with an air flow adjusting ring 4. The air flow adjusting ring 4 is provided with an axial through hole, a gap corresponding to the hole part is arranged between the outer wall and the cavity wall of the inner cavity of the spray head 5, and the gap is positioned right above the hole part. In this embodiment, the gas amount adjusting ring 4 is a second nut welded to the head of the inner cavity of the nozzle 5, and gaps are respectively formed between six sides of the second nut and the wall of the inner cavity of the nozzle 5, wherein the four gaps are opposite to the four liquid inlet holes 6, so that the high-pressure gas is ensured to be directly and fully mixed with the water sprayed from the liquid inlet holes 6.

Specifically, liquid pipe 1 is DN108mm seamless steel pipe, and its wall thickness is 3 ~ 4 mm. The air pipe 2 is a DN57mm seamless steel pipe, and the wall thickness of the air pipe is 3-4 mm. The outer diameter of the head part of the spray head 5 is 20mm, the thread of the outer wall is M20mm, the outer diameter of the bottom part of the spray head is 35mm, and the thickness of the spray head is 5 mm. The aperture of the liquid inlet hole 6 is 5 mm. The first nut is an M20mm nut. The second nut is an M6mm nut.

The principle of the gas-liquid atomization spraying device of the embodiment is as follows: the liquid pipe 1 is internally provided with a gas pipe 2, and two media of gas and liquid are mixed through a spray head 5. Specifically, in the inner cavity of the spray head 5, high-pressure gas is directly and fully mixed with water sprayed from the holes to form water mist, the liquid quickly sprays mixed water vapor under the high-pressure action of the gas, and the mixed water vapor is quickly sprayed to the surface of the uniformly mixed material, so that the uniformly mixed sintering material is uniformly wetted, the purposes of uniformly mixing the sintering material, wetting, granulating and pelletizing are achieved, the air permeability is uniform in the sintering process, and the method plays an important role in improving the quality and the yield of sintering production.

To sum up, it is the utility model discloses a concrete application example is right the utility model protection scope does not constitute the restriction, adopts the technical scheme of equivalent replacement all to fall within the utility model protection scope.

Claims (10)

1. The utility model provides a gas-liquid atomizing spray set which characterized in that includes: gas passage, liquid passage and a N shower nozzle, N is the positive integer, gas passage set up in the liquid passage, the shower nozzle has the atomizing chamber and forms the chamber wall in atomizing chamber, the head in atomizing chamber with gas passage intercommunication, bottom stretch out liquid passage, just be provided with the intercommunication on the shower nozzle atomizing chamber with liquid passage's hole portion.

2. A gas-liquid atomizing spray set according to claim 1, wherein said hole portion includes a plurality of liquid inlet holes which are distributed in a circular array with the axis of said spray head as a center line.

3. A gas and liquid atomizing spray set as set forth in claim 1, wherein said nozzle is a concentric variable diameter nozzle whose inner diameter is gradually increased from a head portion to a bottom portion.

4. A gas-liquid atomizing spray device according to claim 1, wherein said plurality of spray heads are provided in plural number, and said plurality of spray heads are provided at intervals in the axial direction of said gas passage.

5. A gas-liquid atomizing spray set according to claim 1, wherein a gas amount adjusting ring is fixedly mounted on the head portion of the inner chamber of the nozzle, and a gap corresponding to the hole portion is provided between the outer wall of the gas amount adjusting ring and the wall of the inner chamber of the nozzle, and the gap is located right above the hole portion.

6. A gas-liquid atomization spray device according to any one of claims 1 to 5, further comprising a liquid pipe and a gas pipe which are axially arranged in parallel, wherein pipe holes of the liquid pipe form the liquid channel, the gas pipe is located in the pipe holes of the liquid pipe, the pipe holes of the gas pipe form the gas channel, the gas pipe is provided with N gas outlets which are arranged in one-to-one correspondence with the N nozzles, the liquid pipe is provided with N liquid outlets which are arranged in one-to-one correspondence with the N nozzles, outer walls of the heads of the nozzles are in sealed connection with the corresponding hole walls of the gas outlets, bottoms of the nozzles extend out from the corresponding liquid outlets, and outer walls of the nozzles are in sealed connection with the hole walls of the liquid outlets.

7. A gas-liquid atomization spray device as claimed in claim 6, wherein the outer wall of the inlet of the gas pipe is fixedly provided with a gas inlet connecting flange, and the outer wall of the inlet of the liquid pipe is fixedly provided with a liquid inlet connecting flange.

8. A gas-liquid atomizing spray set as set forth in claim 6 wherein a nipple is fixedly mounted on the wall of said outlet hole and has an internally threaded through-hole, and the head of said spray head is threadedly mounted on said internally threaded through-hole.

9. The gas-liquid atomizing spray device of claim 6, wherein the gas inlet of said gas passage is in communication with a source of vapor gas.

10. The gas-liquid atomization spraying device according to claim 6, wherein the hole portion comprises a plurality of liquid inlet holes, the liquid pipe is a DN108mm seamless steel pipe, and the wall thickness of the liquid pipe is 3-4 mm; the air pipe is a DN57mm seamless steel pipe, and the wall thickness of the air pipe is 3-4 mm; the outer diameter of the head of the spray head is 20mm, the outer wall thread is M20mm, the outer diameter of the bottom of the spray head is 35mm, and the thickness of the spray head is 5 mm; the aperture of the liquid inlet hole is 5 mm.

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