CN210773464U - Anti-blocking industrial furnace top flash spray pipe - Google Patents

Anti-blocking industrial furnace top flash spray pipe Download PDF

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Publication number
CN210773464U
CN210773464U CN201921470442.7U CN201921470442U CN210773464U CN 210773464 U CN210773464 U CN 210773464U CN 201921470442 U CN201921470442 U CN 201921470442U CN 210773464 U CN210773464 U CN 210773464U
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spray pipe
pipe
heating
nozzle
kiln according
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CN201921470442.7U
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Chinese (zh)
Inventor
邱江波
夏明�
黄小兵
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Tianjin Flash Ironmaking Technology Co ltd
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Tianjin Flash Ironmaking Technology Co ltd
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Abstract

The utility model provides an anti-clogging industrial furnace kiln natural flashing spray pipe, which comprises a material spray pipe, wherein the material spray pipe comprises at least one material channel; a water jacket is arranged on the outer side of the material spray pipe, and a heating piece is arranged at the nozzle end of the material spray pipe; and a refractory material is filled between the heating piece and the water jacket. The heating part is of a tubular structure, and the inner diameter of the heating part is larger than the diameter of the material spray pipe. The utility model discloses create simple structure, it is few to maintain and operation work load, and use cost is low, has effectively solved spray tube heat resistance problem, has prolonged the life of spray tube, the effectual jam that probably appears in spray tube exit of having avoided simultaneously, job stabilization is reliable.

Description

Anti-blocking industrial furnace top flash spray pipe
Technical Field
The invention belongs to the technical field of industrial furnace equipment, and particularly relates to an anti-blocking industrial furnace natural flashing spray pipe.
Background
In the industrial field, add the material to the fuse-element through the mode of submergence jetting, need solve heat-resisting and prevent stifled two problems simultaneously, install cooling water jacket additional at the periphery of material spray tube, though can solve the heat-resisting problem of spray tube, nevertheless, can produce the bonding phenomenon because of constantly adding the cold burden at the head of spray tube, this kind of bonding thing can slowly rise greatly, finally closes completely, blocks up the spray tube export. The solution commonly adopted in the prior art is to add a poking eye machine, and poke the adhesive at the outlet by using a steel chisel when the blockage phenomenon is confirmed. The poking eye machine is high in manufacturing cost, complex in structure and large in workload of maintenance and operation, once the poking eye machine is blocked, blowing-out is possibly needed, continuous production is affected, and the structure of the spray pipe needs to be improved in a targeted mode, so that the probability of nozzle blockage is reduced or even eliminated by the immersed spraying pipe.
Disclosure of Invention
In view of the above, the present invention provides an anti-clogging natural flash spraying pipe for industrial furnaces, which aims to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an anti-clogging industrial furnace kiln natural flash spray pipe comprises a material spray pipe, wherein the material spray pipe comprises at least one material channel; a water jacket is arranged on the outer side of the material spray pipe, and a heating piece is arranged at the nozzle end of the material spray pipe; and a refractory material is filled between the heating piece and the water jacket.
Furthermore, the material spray pipe comprises a central pipe and a peripheral pipe outside the central pipe, a material channel is formed in the central pipe, and other material channels are formed in the peripheral pipe.
Furthermore, the material spray pipe comprises a central pipe and a plurality of layers of peripheral pipes sleeved outside the central pipe, a material channel is formed in the central pipe, and material channels with annular cross sections are formed between the innermost peripheral pipe and the central pipe and between the peripheral pipes.
Furthermore, the heating part adopts a tubular structure, and the inner diameter of the heating part is larger than the diameter of the nozzle end of the material spray pipe.
Furthermore, the heating piece adopts two heating blocks which are corresponding up and down.
Further, the heating element is made of an electric heating material.
Further, the temperature range of the electric heating material after being electrified and heated is 1200-1600 ℃.
Furthermore, the electrothermal material is lanthanum chromate, zirconium oxide or molybdenum silicide.
Further, the energization voltage of the electric heating material is 36V or less.
Further, the electric heating material electrifying lead leads out of the spray pipe from the water jacket.
Compared with the prior art, the invention has the following advantages:
the invention has simple structure, less maintenance and operation workload and low use cost, effectively solves the problem of heat resistance of the spray pipe, simultaneously avoids the blockage at the outlet of the spray pipe and has stable and reliable actual work.
Drawings
The accompanying drawings, which 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 without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of a material nozzle in the form of a structure in which a peripheral tube is arranged outside a central tube according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a material spray pipe in the inventive embodiment of the present invention in a form of a structure in which a peripheral pipe is sleeved outside a central pipe.
Description of reference numerals:
1-water jacket; 2-a heat generating member; 3-refractory material; 4-peripheral tube; 5-a central material channel; 6-peripheral material channel; 7-a water inlet; 8-water outlet; 9-a wire; 10-central tube.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following examples.
An anti-clogging natural flash nozzle for an industrial furnace, as shown in fig. 1, comprises a material nozzle, the material nozzle comprising at least one material passage; the outer side of the material spray pipe is provided with a water jacket 1, and the nozzle end of the material spray pipe is provided with a heating element 2; and a refractory material 3 is filled between the heating piece and the water jacket. The cooling water jacket is arranged on the outer side of the spray pipe, the spray pipe is protected by utilizing the slag adhering principle, and long-term stable operation of the spray pipe can be ensured.
As shown in fig. 2, the material nozzle includes a central tube 10 and a peripheral tube 4 outside the central tube, a central material passage 5 is formed in the central tube, and other peripheral material passages 6 are formed in the peripheral tube.
Of course, the material spraying pipe may also include a central pipe and several layers of peripheral pipes sleeved outside the central pipe, as shown in fig. 3, a central material passage is formed in the central pipe, and peripheral material passages with annular cross sections are formed between the innermost peripheral pipe and the central pipe and between the peripheral pipes. A peripheral material channel can be formed between the adjacent peripheral pipes, and the innermost peripheral pipe and the central pipe form the peripheral material channel together. When a plurality of peripheral material channels are formed by adopting the peripheral pipes, the water jacket is sleeved outside the peripheral pipe on the outermost side.
The heating part adopts a tubular structure, and the inner diameter of the heating part is larger than the diameter of the nozzle end of the material spray pipe. In addition, the heating element can also adopt two heating blocks which correspond up and down. Generally, the heating element is made of an electric heating material, and the temperature range after electrification and heating is 1200-1600 ℃, and the heat resistance is not less than 1700 ℃. The electrothermal material can be lanthanum chromate, zirconium oxide or molybdenum silicide.
The water inlet 7 and the water outlet 8 are arranged at different positions of the water jacket, and the stability of the water cooling effect of the spray pipe is ensured through the continuous circulation of cooling water.
The voltage for electrifying the heating element is selected to be a safe voltage of 36V or below, and the electrode is bridged with the electrothermal material. The electrified lead 9 can pass through the water jacket (adopting a waterproof lead or erecting a waterproof sleeve and other structures), and the low-temperature environment provided by the cooling water jacket is utilized to supply power for the heating element extending into the furnace. Of course, other arrangements of the wiring could be used, for example, live wires could be passed through the empty peripheral material passage adjacent the water jacket, but in such a case, it would be desirable to increase the heat resistance rating of the insulation on the outside of the wire.
And a gap between the heating element and the water jacket is filled with a refractory material with a certain thickness for heat insulation. It is to be emphasized that: the filled refractory material is made of refractory material with poor heat conductivity, i.e. heat-insulating refractory material, which can be unshaped or prefabricated, and in use, the refractory material and the slag can form a slag-adhering protective layer to play the roles of heat insulation and stabilizing the electric heating material.
The working principle of the heating element is as follows: the working current of the electric heating material is adjusted to be at a certain temperature, so that the temperature of the electric heating material is higher than the average melting point of the material added into the nozzle, the surface of the heating body is kept in a 'wet' state all the time, then, solid-state adhesive substances cannot be formed at the outlet of the nozzle, and the spray pipe cannot be blocked. Certainly, in order to reduce energy consumption, the electric heating material does not need to be kept in a power-on state all the time, for example, the electric heating material is opened at a fixed time interval, so that the adhesive substance which does not form the film-shaped package at the nozzle is melted. If the nozzle of the spray head is rarely blocked in actual production, the electric heating mode can be used as a standby troubleshooting means, and the electric heating mode is started when the nozzle is blocked.
It should be noted that under some working conditions, the heating element can be heated by the temperature of the melt without being electrified, so that the surface of the material can be wetted, and the nozzle can be kept not to be blocked. In this case, the selection range of the material is broader. By way of example, and not limitation, silicon carbide fiber composite silicon carbide is selected, for example. The material only needs to be high temperature resistant and have strength.
The invention has simple structure, less maintenance and operation workload and low use cost, effectively solves the problem of heat resistance of the spray pipe, prolongs the service life of the spray pipe, effectively avoids the possible blockage phenomenon at the outlet of the spray pipe and has stable and reliable work.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims (10)

1. The utility model provides a prevent industrial furnace kiln sky flash spray pipe of jam which characterized in that: the material spray pipe comprises at least one material channel; a water jacket is arranged on the outer side of the material spray pipe, and a heating piece is arranged at the nozzle end of the material spray pipe; and a refractory material is filled between the heating piece and the water jacket.
2. The anti-clogging natural flash nozzle of an industrial kiln according to claim 1, wherein: the material spray pipe comprises a central pipe and a peripheral pipe outside the central pipe, a material channel is formed in the central pipe, and other material channels are formed in the peripheral pipe.
3. The anti-clogging natural flash nozzle of an industrial kiln according to claim 1, wherein: the material spray pipe comprises a central pipe and a plurality of layers of peripheral pipes sleeved on the outer side of the central pipe, a material channel is formed in the central pipe, and material channels with annular cross sections are formed between the innermost peripheral pipe and the central pipe and between the peripheral pipes.
4. The anti-clogging natural flash nozzle of an industrial kiln according to claim 1, wherein: the heating part is of a tubular structure, and the inner diameter of the heating part is larger than the diameter of the nozzle end of the material spray pipe.
5. The anti-clogging natural flash nozzle of an industrial kiln according to claim 1, wherein: the heating piece adopts two heating blocks which are corresponding up and down.
6. The anti-clogging natural flash nozzle of an industrial kiln according to claim 1, wherein: the heating element is made of an electric heating material.
7. The anti-clogging natural flash nozzle of an industrial kiln according to claim 6, wherein: the temperature range of the electric heating material after being electrified and heated is 1200-1600 ℃.
8. The anti-clogging natural flash nozzle of an industrial kiln according to claim 6, wherein: the electrothermal material is lanthanum chromate, zirconium oxide or molybdenum silicide.
9. The anti-clogging natural flash nozzle of an industrial kiln according to claim 6, wherein: the energization voltage of the electric heating material is 36V or less.
10. The anti-clogging natural flash nozzle of an industrial kiln according to claim 6, wherein: the electric heating material electrifying lead leads out of the spray pipe from the water jacket.
CN201921470442.7U 2019-09-05 2019-09-05 Anti-blocking industrial furnace top flash spray pipe Active CN210773464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921470442.7U CN210773464U (en) 2019-09-05 2019-09-05 Anti-blocking industrial furnace top flash spray pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921470442.7U CN210773464U (en) 2019-09-05 2019-09-05 Anti-blocking industrial furnace top flash spray pipe

Publications (1)

Publication Number Publication Date
CN210773464U true CN210773464U (en) 2020-06-16

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CN201921470442.7U Active CN210773464U (en) 2019-09-05 2019-09-05 Anti-blocking industrial furnace top flash spray pipe

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110425890A (en) * 2019-09-05 2019-11-08 天津闪速炼铁技术有限公司 A kind of anticlogging industrial furnace day flare pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110425890A (en) * 2019-09-05 2019-11-08 天津闪速炼铁技术有限公司 A kind of anticlogging industrial furnace day flare pipe

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