CN216274221U - Multi-medium wide-angle rotational flow atomization spray gun - Google Patents
Multi-medium wide-angle rotational flow atomization spray gun Download PDFInfo
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- CN216274221U CN216274221U CN202120332599.4U CN202120332599U CN216274221U CN 216274221 U CN216274221 U CN 216274221U CN 202120332599 U CN202120332599 U CN 202120332599U CN 216274221 U CN216274221 U CN 216274221U
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Abstract
The utility model belongs to the field of acid removal, temperature reduction and dust removal of metallurgical blast furnace gas, and particularly relates to a multi-medium wide-angle rotational flow atomization spray gun, which aims to solve the problems of low efficiency of dissolving and removing acid substances in gas and high dust content of the gas caused by poor atomization effect of a single-medium spray gun under low flow and low pressure, and comprises an inner pipe, a middle pipe, an outer pipe, a steady flow connecting seat, a water-dividing gas passing core, a conical water-dividing pin and a rotational flow spray gun head, wherein the middle pipe is sleeved outside the inner pipe, the outer pipe is sleeved outside the middle pipe, one ends of the inner pipe, the middle pipe and the outer pipe are connected to the steady flow connecting seat, the rotational flow spray gun head is connected to the other end of the steady flow connecting seat, the water-dividing gas passing core and the conical water-dividing pin are arranged in the rotational flow spray gun head, the spray gun can atomize efficiently and remove dust in the coal gas.
Description
Technical Field
The utility model belongs to the field of acid removal, temperature reduction and dust removal of metallurgical blast furnace gas, and particularly relates to a multi-medium wide-angle rotational flow atomization spray gun.
Background
With the increase of the smelting intensity of the blast furnace, the acid gas content of blast furnace gas is higher and higher, the temperature of the gas is also in a rising state, and the dust content of the gas is higher and the corrosion to a pipe network is increasingly aggravated. The atomizing spray gun as a key component in the spray tower has good and bad performance and high working efficiency, and plays a key role in the deacidification, cooling and dust removal of coal gas. At present, most of spray guns used for blast furnaces are simple single-medium centrifugal or external spiral water spray guns, the spray guns belong to pressure type atomizing spray guns, the effects of acid removal and temperature reduction can be achieved only under high pressure, the pressure generally needs to be more than 1.0MPa, and therefore a water pump system needs high power configuration and energy consumption is high; the working flow of the spray gun nozzle is generally small, the drift diameter of the spray gun nozzle cannot be too small, and the spray gun nozzle is easy to block during working, so that the spray gun has large atomized particles, the diameter of the Soxhlet is generally more than 400 microns, the specific surface area is small, the capacity and efficiency of dissolving acidic substances are low, the temperature reduction effect is poor, and the effective utilization rate of liquid is low; the spray angle of the spray gun can change along with the change of pressure and water quantity, which is not beneficial to the continuous and stable work of the spray gun; the spray gun is made of 304 stainless steel, the spray gun is worn quickly in high-temperature alkaline medium and acid environment, the common use period is changed basically in 3 months, and the use period of a normal spray gun cannot be shorter than 12 months. At present, two-fluid atomization spray guns are used, but the atomization angle of the spray guns is smaller and is only less than 55 degrees, the using amount of the spray guns in the spray tower is large, the spray guns are only suitable for nitrogen, high-temperature steam cannot be used, the consumption of the nitrogen is large, and the operation cost is high.
The simple spray gun configured in the blast furnace is not suitable for large-scale, high-strength and continuous blast furnace smelting production, and the optimization of the spray gun for removing acid and cooling is particularly urgent and urgent.
Disclosure of Invention
The problems that the single-medium spray gun is poor in atomization effect under low flow and low pressure, unstable in spray angle and easy to block, and acidic substances in coal gas are dissolved and removed efficiently, coal gas temperature fluctuation is large, and dust content of the coal gas is high are solved.
The utility model provides a multi-medium wide-angle rotational flow atomization spray gun which comprises an inner pipe, a middle pipe, an outer pipe, a steady flow connecting seat, a water-diversion gas-passing core, a conical water-diversion pin and a rotational flow spray gun head, wherein the middle pipe is sleeved outside the inner pipe, the outer pipe is sleeved outside the middle pipe, one ends of the inner pipe, the middle pipe and the outer pipe are connected to the steady flow connecting seat, the rotational flow spray gun head is connected to the other end of the steady flow connecting seat, the water-diversion gas-passing core and the conical water-diversion pin are arranged in the rotational flow spray gun head, the other end of the inner pipe is connected with liquid supply equipment, liquid passes through the inner pipe, a pipe plug is arranged at the other ends of the middle pipe and the outer pipe, a gas supply device is connected to the outer pipe, and gas passes through a gap between the middle pipe and the outer pipe.
The medium of inner tube and outer tube relies on well pipe to keep apart two kinds of media, prevents the mutual heat transfer of two kinds of media, and the gaseous medium pipeline can use high temperature steam and can not appear the condensation and to the heating effect of liquid, also can use nitrogen gas as atomizing power.
Furthermore, a backflow preventing accelerating ring is arranged in the flow stabilizing connecting seat.
Furthermore, the inner pipe is provided with an anti-backflow accelerating ring.
The anti-backflow accelerating ring is additionally arranged at the front end of the inner pipe and in the flow stabilizing connecting seat, and the device plays roles in guiding, accelerating and preventing backflow.
Furthermore, a support ring is arranged between the inner pipe and the middle pipe or/and between the middle pipe and the outer pipe.
Furthermore, one end of the inner pipe is connected with the steady flow connecting seat, the other end of the inner pipe is connected with the telescopic compensation corrugated pipe, and the telescopic compensation corrugated pipe is connected with the liquid supply equipment.
The telescopic corrugated compensation pipe is additionally arranged on the inner pipe, so that the phenomenon that contraction stress is inconsistent and further welded junction cracking is caused due to unbalanced heating of the inner pipe and the outer pipe is prevented, and the service life of the spray gun can be greatly prolonged
Furthermore, a sealing gasket is arranged between the rotational flow spray gun head and the flow stabilizing connecting seat.
Further, the sealing gasket is a red copper gasket.
Furthermore, the middle pipe and one end of the outer pipe are connected with a steady flow connecting seat, the other end of the middle pipe is provided with a pipe plug, the outer pipe is sequentially connected with an air inlet pressure gauge, an air inlet ball valve, an air inlet one-way valve and an air inlet flange, and the air inlet flange is connected with a gas supply device.
Furthermore, one end of the inner pipe is connected with the steady flow connecting seat, the other end of the inner pipe is sequentially connected with a water inlet ball valve, a water inlet pressure gauge, a water inlet check valve and a water inlet flange, and the water inlet flange is connected with a liquid supply device.
Furthermore, one end of the inner pipe is connected with the steady flow connecting seat, the other end of the inner pipe is sequentially connected with the reducing valve, the elbow, the water inlet pressure gauge, the water inlet ball valve, the water inlet check valve and the water inlet flange, and the water inlet flange is connected with the liquid supply equipment.
The medium provided by the system is uniformly distributed to each spray gun, the consistency of the distribution of the medium of the spray guns is ensured, whether the medium leaks or not is checked at any time, and the situation that the medium flows backwards due to the blockage of the spray gun head and the imbalance of pressure when the spray guns work is prevented.
Furthermore, the outer pipe is provided with a fixed pipe and a mounting flange.
The outer pipe of the spray gun is additionally provided with a fixed pipe and a mounting flange, the mounting flange is additionally provided with a sealing device and a mounting hole, the mounting flange is connected with the wall of the spray tower through a flange, and the spray gun can be fixed after the position of the spray gun is adjusted.
The spray gun head is the key place of spray gun, liquid state, gaseous state medium carry the head after via the stationary flow connecting seat with gas-liquid medium vertical steering, liquid carries out once breakage through the reposition of redundant personnel liquid piece at middle part, gaseous state is cuted the liquid after once cracking after the reposition of redundant personnel hole groove that distributes in circumference is with higher speed, reach the purpose of secondary atomization, the mixed gas-liquid after the atomizing reaches the whirl hole of shower nozzle, carried out the third time atomizing under the effect of whirl, the medium atomizing angle after the whirl can reach 130 degrees at most, 16 whirl holes of whirl of circumference distribution of whirl spray gun head, the liquid fog after the whirl reaches the purpose of the even cover of circumference.
By adopting the technical scheme, the spray gun can efficiently atomize, efficiently remove acidic substances, accurately reduce the temperature of coal gas and remove dust of coal gas species under the condition of lower medium pressure and flow, the consumption of the medium can be greatly reduced, and the gas can use steam.
Description of the drawings:
FIG. 1 is a schematic structural view of a multi-medium wide-angle swirl atomization spray gun provided by the utility model;
FIG. 2 is a schematic diagram of the liquid and gas directions of the multi-medium wide-angle rotational flow atomization spray gun provided by the utility model;
FIG. 3 is a partially enlarged schematic view of a multi-media wide-angle swirl atomizing spray gun provided by the present invention;
FIG. 4 is a schematic view of a structure of a swirl spray gun head in the multi-medium wide-angle swirl atomizing spray gun provided by the utility model;
FIG. 5 is a schematic structural view of a conical water distribution pin in the multi-medium wide-angle rotational flow atomization spray gun provided by the utility model;
FIG. 6 is a structural schematic diagram of a water-distributing gas-passing core structure of the multi-medium wide-angle rotational flow atomization spray gun provided by the utility model;
FIG. 7 is a schematic view of a steady flow connecting seat structure in the multi-medium wide-angle rotational flow atomization spray gun provided by the utility model;
FIG. 8 is a schematic view of an anti-backflow accelerating ring structure in the multi-media wide-angle swirl atomization spray gun provided by the present invention;
FIG. 9 is a schematic structural view of a telescopic compensation bellows in the multi-medium wide-angle swirl atomization spray gun provided by the utility model;
in the figure: 1-a rotational flow spray gun head, 2-a conical water distribution pin, 3-a water distribution gas passing core, 4-a red copper pad, 5-a spray gun steady flow connecting seat, 6-a backflow prevention accelerating ring, 7-an outer pipe, 8-a middle pipe, 9-an inner pipe, 10-a supporting ring, 11-a fixed pipe, 12-a mounting flange, 13-an air inlet flange, 14-an air inlet sealing gasket, 15-an air inlet one-way valve, 16-an air inlet pressure gauge, 17-an air inlet ball valve, 18-an air inlet mating flange, 19-a telescopic compensation corrugated pipe, 20-a pipe plug, 21-a reducing diameter, 22-an elbow, 23-an air inlet pressure gauge, 24-an air inlet ball valve, 25-an air inlet one-way valve, 26-an air inlet flange, 27-an air inlet sealing gasket and 28-an air inlet mating flange, 29-bolt, 30-nut.
Detailed Description
The utility model is described in detail below by way of examples and figures:
as shown in figure 1, the utility model provides a multi-medium wide-angle rotational flow atomization spray gun which comprises an inner pipe 9, a middle pipe 8, an outer pipe 7, a steady flow connecting seat 5, a water-diversion gas-passing core 3, a conical water-diversion pin 2 and a rotational flow spray gun head 1, wherein the middle pipe 8 is sleeved outside the inner pipe 9, the outer pipe 7 is sleeved outside the middle pipe 8, a support ring 10 is arranged between the inner pipe and the middle pipe or/and the middle pipe and the outer pipe, one end of the inner pipe, the middle pipe and the outer pipe is connected to the steady flow connecting seat 5, the steady flow connecting seat 5 and the inner pipe 7 are provided with a backflow-prevention accelerating ring 6, the rotational flow spray gun head 1 is connected to the other end of the steady flow connecting seat 5, a sealing gasket 4 is arranged between the rotational flow spray gun head 1 and the steady flow connecting seat 5, the water-diversion gas-passing core 3 and the conical water-diversion pin 2 are arranged in the rotational flow spray gun head 1, one end of the inner pipe 9 is connected with the steady flow connecting seat 1, the other end of the inner pipe 9 is connected with a telescopic compensation corrugated pipe 19, the middle pipe 8 is connected with a steady flow connecting seat 5 with one end of an outer pipe 7, the other end of the middle pipe is provided with a pipe plug 20, the outer pipe 7 is sequentially connected with an air inlet pressure gauge 16, an air inlet ball valve 17, an air inlet one-way valve 15 and an air inlet flange 13, an air inlet sealing gasket 14 is arranged between the air inlet one-way valve 15 and the air inlet flange 13, the air inlet flange 13 is connected with an air inlet mating flange 18, the air inlet mating flange 18 is connected with a gas supply device, and the outer pipe 7 is provided with a fixing pipe 11 and an installation flange 12.
The stationary flow connecting seat 5 is connected to 9 one ends of inner tube, and the other end has connected gradually reducing 21, elbow 22, intake pressure table 23, intake ball valve 24, intake check valve 25, intake flange 26 connects and intakes companion flange 28, intake flange 26 and intake companion flange 28 between be equipped with into water sealed pad 27, intake companion flange 28 connects liquid supply equipment, intake flange and intake companion flange use bolt 29, nut 30 to be connected.
As shown in fig. 2 and 3, a liquid medium enters the spray gun through the port B, a gas medium (both nitrogen and steam) enters the spray gun body through the port a, the liquid medium is transmitted by the inner pipe 9, the gas medium is transmitted through the interlayer part of the middle pipe 8 and the outer pipe 7, the gas-liquid flange is additionally provided with the gas inlet check valve 15 and the water inlet check valve 25, the backflow of the medium can be prevented, the medium pressure gauge is additionally arranged behind the check valve, and the working state of the medium can be monitored at any time. The telescopic compensation bellows 19 is additionally welded on the inner pipe of the liquid medium, so that the pulling and cracking of a welded junction caused by thermal stress contraction caused by temperature difference of the inner pipe and the outer pipe during working can be prevented, and the effect of protecting the inner pipe 9 is achieved. The liquid medium is additionally provided with the support ring 10 on the pipeline, so that the solidification gas drift diameter can be realized, the consistency of the circumferential flow velocity of gas flow is kept, meanwhile, the strength of the body of the spray gun can be enhanced, and the deformation and the bending of the spray gun are prevented. The front end of the liquid medium is additionally provided with the backflow-preventing accelerating ring 6, the accelerating effect on the liquid medium is achieved through the reducing and reducing design, meanwhile, the backflow caused by pressure difference and nozzle blockage is reduced, and the atomizing and flow guiding effects are achieved on impact atomization and fluid steering of the liquid and the flow stabilizing connecting seat 5 integrally designed with the spray gun. Gas media in the middle pipe 8 and the outer pipe 7 enter the water-dividing gas core 3 at the head of the spray gun through the gas inlet pressure gauge 16, the gas at the position of the water-dividing gas core 3 is uniformly distributed and then is guided to accelerate the shearing and atomization of the liquid after primary atomization, the atomized gas and liquid are cracked again to flow in the circumferential direction under the action of the conical water-dividing pin 2, swirl injection is formed through the swirl spray gun head 1 and gas-assisted atomization is generated with the gas outside the spray gun head again, and the color spraying angle after swirl can be selected within 130 degrees according to process requirements.
The installation design of the spray gun adopts the installation form of a flange reinforcing fixed pipe 11, the flange reinforcing fixed pipe is connected to the pipe wall of a spray tower through bolts, the spray tower is provided with a matched flange in advance, and the circumferential number and the used layer number of the spray gun are designed according to the diameter and the height of the spray tower.
On the basis of keeping all the performances of the original single-medium spray gun, the multi-medium high-efficiency atomization spray gun is additionally provided with an air-assisted atomization mechanism, and has the following main characteristics:
1) the novel spray gun adopts a compatible design, can be used for single-medium independent atomization injection and double-medium gas-assisted atomization injection, and the two atomization forms can be combined with the dynamic switching of the actual working conditions of coal gas.
2) The gas medium of spray gun can select nitrogen gas for use, also can select steam for use, and the spray gun inner tube has carried out the compound design, and the liquid pipeline of steam pipe with the pipe keeps apart with the intermediate pipe when spraying steam, can prevent the condensation of steam.
3) The spray gun adopts a light strengthening design, and the support ring is additionally arranged inside the spray gun, so that the spray gun cannot droop and deform at high temperature even if the spray gun is long, and the service life of the spray gun can be prolonged by one time.
4) The head of the spray gun adopts the technologies of mechanical atomization, injection atomization, stimulation atomization and bubble atomization, and an airflow accelerating device is designed, so that liquid can be atomized to a diameter below 150um of sotalol, and the neutralization reaction and temperature drop can be accelerated.
5) The spray gun head adopts an embedded design, so that the spray gun head can be quickly disassembled and replaced while being protected.
6) The spray gun is additionally provided with the corrugated pipe for preventing the spray gun from stretching and deforming, so that deformation caused by inconsistent contraction and expansion of each sleeve of the gun body in a hot state is prevented, and welded junction cracking is prevented.
7) The nozzle head adopts the rotational flow wide-angle design, the maximum injection angle can reach 130 degrees, atomization mixing is more sufficient, the number of spray guns can be reduced, the covered area can be increased, the acid-base reaction time can be shortened, and the temperature drop can be quickly realized.
8) And the water-gas loop of the spray gun is additionally provided with a unidirectional flow design, so that backflow caused by pressure difference is prevented.
9) The whole spray gun adopts a post-welding heat treatment process, so that the welding stress can be eliminated, and the service life of the spray gun can reach more than 2 years.
10) The liquid flow regulation ratio of the new spray gun can reach more than 10 times, the medium pressure of the spray gun can be controlled in a lower range for atomization, the pressure is generally within 1.0MPa, a water-gas system can operate at low pressure, and the energy consumption is less.
The present invention is not limited to the above embodiments, and those skilled in the art can make various modifications without inventive changes from the above concepts, and fall within the scope of the present invention.
Claims (10)
1. The utility model provides a multimedium wide angle whirl atomizing spray gun, its characterized in that, the spray gun includes inner tube, well pipe, outer tube, stationary flow connecting seat, divides water to cross the gas core, toper minute water round pin, whirl spray gun head, well pipe box establishes in the inner tube outside, the outer tube cover establishes in well pipe outside, the one end of inner tube, well pipe, outer tube is connected on the stationary flow connecting seat, the whirl spray gun head is connected at the other end of stationary flow connecting seat, divide water to cross the gas core, toper minute water round pin and set up in whirl spray gun head, the liquid supply equipment is connected to the inner tube other end, and liquid passes through in the inner tube, and the other end of well pipe and outer tube is equipped with the plug, connect gas supply equipment on the outer tube, gas passes through in the clearance between well pipe and outer tube.
2. The multi-media wide-angle swirl atomization spray gun of claim 1 wherein a backflow-preventing acceleration ring is disposed in the flow-stabilizing connection seat.
3. The multi-media wide-angle swirl atomizing spray gun of claim 1 wherein the inner tube is provided with a backflow-preventing acceleration ring.
4. The multi-media wide-angle swirl atomization lance of claim 1 wherein a support ring is disposed between the inner tube and the middle tube or/and the middle tube and the outer tube.
5. The multi-media wide-angle rotational flow atomization spray gun of claim 1, wherein one end of the inner tube is connected with a steady flow connecting seat, the other end of the inner tube is connected with a telescopic compensation corrugated tube, and the telescopic compensation corrugated tube is connected with a liquid supply device.
6. The multi-media wide-angle rotational flow atomization spray gun of claim 1, wherein a sealing gasket is arranged between the rotational flow spray gun head and the flow stabilizing connecting seat.
7. The multi-medium wide-angle rotational flow atomization spray gun of any one of claims 1 to 6, wherein the middle pipe is connected with one end of an outer pipe through a steady flow connecting seat, the other end of the outer pipe is provided with a pipe plug, the outer pipe is sequentially connected with an air inlet pressure gauge, an air inlet ball valve, an air inlet check valve and an air inlet flange, and the air inlet flange is connected with a gas supply device.
8. The multi-medium wide-angle rotational flow atomization spray gun of any one of claims 1 to 6, wherein one end of the inner tube is connected with a steady flow connecting seat, the other end of the inner tube is sequentially connected with a water inlet pressure gauge, a water inlet ball valve, a water inlet one-way valve and a water inlet flange, and the water inlet flange is connected with a liquid supply device.
9. The multi-medium wide-angle rotational flow atomization spray gun of claim 8, wherein one end of the inner tube is connected with a steady flow connecting seat, and the other end of the inner tube is sequentially connected with a reducing seat, an elbow, a water inlet pressure gauge, a water inlet ball valve, a water inlet check valve and a water inlet flange.
10. The multi-media wide-angle swirl atomization lance of claim 1 wherein the outer tube is provided with a fixed tube and a mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120332599.4U CN216274221U (en) | 2021-02-05 | 2021-02-05 | Multi-medium wide-angle rotational flow atomization spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120332599.4U CN216274221U (en) | 2021-02-05 | 2021-02-05 | Multi-medium wide-angle rotational flow atomization spray gun |
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| Publication Number | Publication Date |
|---|---|
| CN216274221U true CN216274221U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120332599.4U Active CN216274221U (en) | 2021-02-05 | 2021-02-05 | Multi-medium wide-angle rotational flow atomization spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216274221U (en) |
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2021
- 2021-02-05 CN CN202120332599.4U patent/CN216274221U/en active Active
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