CN218425585U - Ladle roaster - Google Patents
Ladle roaster Download PDFInfo
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- CN218425585U CN218425585U CN202221867236.1U CN202221867236U CN218425585U CN 218425585 U CN218425585 U CN 218425585U CN 202221867236 U CN202221867236 U CN 202221867236U CN 218425585 U CN218425585 U CN 218425585U
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Abstract
The utility model relates to a toast technical field, especially relate to a ladle roaster. The ladle roaster is used for roasting a ladle and comprises three independent primary combustion systems, a secondary combustion system and a tertiary combustion system; the primary combustion system is provided with a primary nozzle, the secondary combustion system is provided with a secondary nozzle, the tertiary combustion system is provided with a tertiary nozzle, and the tertiary nozzle, the secondary nozzle and the primary nozzle are sequentially arranged from top to bottom. Compared with the prior art, the ladle roaster adopts three-level combustion, solves the problem that the temperature of the refractory material at the bottom of the ladle is not uniform in roasting, avoids the occurrence of cracking accidents of the refractory material, adopts three-level combustion in the roasting process, ensures that the roasting flame is uniform and the temperature is uniform, and saves the roasting time and the coal gas usage amount.
Description
Technical Field
The utility model relates to a toast technical field, especially relate to a ladle roaster.
Background
In iron and steel enterprises, a ladle and a ladle are generally baked by using a double-sleeve type conventional ladle baking device, and flame is sprayed out from a nozzle in the middle of a ladle cover to reach the ladle, so that the purpose of a red depression is realized. The nozzle is designed as a nozzle, the bottom of the ladle is baked after the flame comes out, the temperature in the ladle gradually rises along with the increase of baking time, and the baking time is generally 24-48 hours.
It can be seen that the use of the conventional ladle roaster mainly has several disadvantages as follows:
1) A double-sleeve type conventional roaster is used, a gas pipeline is sleeved inside an oxygen (air) pipeline, and oxygen, air and gas can be directly mixed and combusted at the end part of a sleeve. During the combustion process of the conventional roaster, due to the fluctuation of the quality and the pressure of the gas, the mixture mode of the sleeve type leads the incomplete mixing of the gas and the oxygen or the air, and the flame combustion at the end part of the roaster is unstable.
2) The conventional roaster is long in roasting time and uneven in roasting temperature, particularly, when a ladle is overhauled or newly repaired, the refractory material in the ladle is high in moisture, steam is large, the early-stage roasting effect is poor, and when flame is given for a large amount, the accident of collapse of the refractory material is easy to happen, when flame is given for a small amount, the roasting temperature cannot meet the requirement.
3) In the baking process, the coal gas is seriously wasted, and the environmental pollution is easily caused.
4) For the field turnover bag (commonly called black bag), the baking time is longer;
5) Under the influence of the pressure and flow of an on-site gas main pipe, flame regulation is unstable, baking temperature is unstable, and particularly, due to the fact that flame of a conventional roaster is short and cannot reach the ladle bottom, the refractory materials cannot be baked in place, so that the refractory materials have thermal stress cracks, collapse and fall off when receiving molten steel, and potential safety accidents are caused.
Based on this, the utility model provides a novel ladle roaster to overcome the defect among the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ladle roaster adopts tertiary burning, has solved ladle bottom refractory material temperature and has toasted inhomogeneous situation, has avoided the emergence of resistant material crackle accident, simultaneously, toasts the in-process, has adopted tertiary burning, toasts that flame is even, the temperature is even, practices thrift toasting time and coal gas use amount simultaneously.
In order to achieve the above object, the utility model provides a ladle roaster for roasting ladles, which comprises three independent primary combustion systems, a secondary combustion system and a tertiary combustion system; the primary combustion system is provided with a primary nozzle, the secondary combustion system is provided with a secondary nozzle, the tertiary combustion system is provided with a tertiary nozzle, and the tertiary nozzle, the secondary nozzle and the primary nozzle are sequentially arranged from top to bottom;
the primary combustion system comprises a first gas pipeline and a first combustion-supporting gas pipeline, the first combustion-supporting gas pipeline is sleeved outside the first gas pipeline, and the primary nozzle is a direct-injection umbrella-shaped nozzle;
the secondary combustion system comprises a second gas pipeline and a second combustion-supporting gas pipeline, the second gas pipeline is sleeved between the first gas pipeline and the first combustion-supporting gas pipeline, and the second combustion-supporting gas pipeline is sleeved outside the first combustion-supporting gas pipeline; the secondary nozzle is a multi-flow-beam combustion channel and is arranged at the bottom of the secondary combustion system;
the third-stage combustion system is formed in the middle of the second gas pipeline and the second combustion-supporting gas pipeline, and the third-stage nozzle is formed in the middle of the second gas pipeline and the second combustion-supporting gas pipeline.
Further, a first gas conveying channel is formed inside the first gas pipeline, and a first combustion-supporting gas conveying channel is formed between the first combustion-supporting gas pipeline and the first gas pipeline; and the outlet end of the first combustion-supporting gas pipeline is arranged below the outlet end of the first gas pipeline, so that a space is reserved between the outlet end of the first combustion-supporting gas pipeline and the outlet end of the first gas pipeline, and a mixing cavity is arranged in the reserved space.
Furthermore, the mixing cavity is in a hollow truncated cone shape with two open ends and is provided with a second large opening end, a second small opening end and a conical surface; the second small opening end is stopped at the outlet end of the first gas pipeline so as to enable the first gas conveying channel to be communicated with the interior of the mixing cavity; the second large opening end is fixedly connected with the outlet end of the first combustion-supporting gas pipeline; a plurality of first through holes are formed in the conical surface, so that the first combustion-supporting gas conveying channel is communicated with the interior of the mixing cavity;
and a baffle is fixedly arranged at the outlet end of the first combustion-supporting gas pipeline, the baffle cover covers the second large opening end of the mixing cavity, and a plurality of second through holes are formed in the baffle.
Furthermore, a triangular cone baffle is arranged at the outlet end of the first gas pipeline, the triangular cone baffle is inverted, and a plurality of third through holes are formed in the outer wall surface of the triangular cone baffle.
Further, a second gas conveying channel is formed between the second gas pipeline and the first gas pipeline, and the outlet end of the second gas pipeline is positioned below the outlet end of the second combustion-supporting gas pipeline and above the outlet end of the first gas pipeline;
a sealed air box body is sleeved at the outlet end of the second gas pipeline, the upper end of the sealed air box body is fixedly connected with the outlet end of the second combustion-supporting gas pipeline, and a fourth through hole is formed in the upper end of the sealed air box body so as to enable the second combustion-supporting gas pipeline to be communicated with the sealed air box body;
and a plurality of first connecting pipelines are arranged in the sealed air box body, one end of each first connecting pipeline is communicated with the corresponding second gas pipeline, and the other end of each first connecting pipeline is abutted against the inner wall side of the sealed air box body, so that the gas in the corresponding second gas pipeline is sprayed out of the sealed air box body.
Furthermore, a first hole is formed in a first connecting pipeline of the sealed air box body and used for jetting coal gas; and a plurality of second holes are arranged around the first hole of the sealed air box body and used for jetting air.
Furthermore, a second ramming layer is formed on the outer wall surface of the sealed air box body by using a fire-resistant ramming material.
Furthermore, a plurality of third holes are formed in the middle of the second combustion-supporting gas pipeline and used for jetting air; a second connecting pipeline is arranged between the middle part of the second combustion-supporting gas pipeline and the second gas pipeline, one end of the second connecting pipeline is communicated with the second gas pipeline, and the other end of the second connecting pipeline is stopped against the inner wall side of the second combustion-supporting gas pipeline, so that the gas in the second gas pipeline is sprayed out of the second combustion-supporting gas pipeline.
Furthermore, a third ramming layer is formed on the outer wall surface of the middle part of the second combustion-supporting gas pipeline by using a refractory ramming material.
The utility model discloses following beneficial effect has:
the utility model discloses in this ladle roaster, including one-level combustion system, second grade combustion system and tertiary combustion system, toasting the in-process, adopted tertiary burning, toast that flame is even, the temperature is even, practices thrift toasting time and coal gas use amount simultaneously. When the three-stage combustion ladle roaster is used, the three-stage combustion ladle roaster directly extends into the ladle, so that flame directly reaches the bottom of the ladle, and the roasting effect on refractory materials at the bottom of the ladle, namely, air bricks, seating bricks and a water gap, is better. Simultaneously, this ladle roaster's tertiary burning has all toasted whole ladle inner wall, has the temperature from the package bottom to the package wall for toast very evenly in the whole ladle. The adopted three-stage combustion control can reasonably control the baking temperature and time according to the maintenance condition of the heat-preservation refractory material, and save the coal gas consumption and the baking time; the problem of uneven baking of the refractory material at the bottom of the ladle is solved, and the occurrence of cracking accidents of the refractory material is avoided.
In addition, this ladle roaster toasts earlier stage, can adopt oxy-fuel combustion, oxygen boosting burning, carries oxygen or oxygen boosting gas in the combustion-supporting gas pipeline promptly, guarantees the combustion effect, especially makes in winter, under the not good condition of coal gas quality, uses oxy-fuel combustion, oxygen boosting burning can guarantee that quick end ladle toasts and the ladle uses, guarantees that production is stable in the same direction as the line.
Drawings
For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a ladle roaster and a ladle according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of the primary combustion system of FIG. 1;
FIG. 3 is a schematic block diagram of the secondary combustion system of FIG. 1;
FIG. 4 is a schematic view of the first and second holes in the sealed air box of FIG. 3;
in the figure: 1, a steel ladle; the device comprises a primary combustion system 2, a primary nozzle 20, a first gas pipeline 21, a first combustion-supporting gas pipeline 22, a baffle 23 and a triangular cone baffle 24; the secondary combustion system 3, a secondary nozzle 30, a second gas pipeline 31 and a second combustion-supporting gas pipeline 32; the three-stage combustion system 4 and the three-stage nozzle 40; a mixing cavity 5, a second large opening end 50, a second small opening end 51 and a conical surface 52; the sealed air box body 6, a first connecting pipeline 60, a first hole 61 and a second hole 62; a second connecting duct 7.
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 present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be discussed in detail below with reference to fig. 1 to 4 and specific embodiments:
as shown in fig. 1 to 4, the present invention provides a ladle roaster for roasting a ladle 1, which comprises a primary combustion system 2, a secondary combustion system 3 and a tertiary combustion system 4, wherein the primary combustion system 2, the secondary combustion system 3 and the tertiary combustion system 4 are respectively controlled independently; the first-level combustion system 2 is provided with a first-level nozzle 20 and used for injecting first-level combustion gas, the second-level combustion system 3 is provided with a second-level nozzle 30 and used for injecting second-level combustion gas, the third-level combustion system 4 is provided with a third-level nozzle 40 and used for injecting third-level combustion gas, and the third-level nozzle 40, the second-level nozzle 30 and the first-level nozzle 20 are sequentially arranged from top to bottom. This ladle roaster uses tertiary combustion system to toast the ladle, has realized toasting more meticulously, when especially overhauing resistant material to the different positions of ladle, selects suitable baking system, forms different toasting modes. For example, 1) for baking the ladle overhaul ladle bottom refractory material, only the primary combustion system 2 is used for baking, and the secondary combustion system 3 and the tertiary combustion system 4 are closed. 2) For the ladle overhauling slag line part and the ladle bottom part, the area is positioned at the middle upper part of the ladle, only the secondary combustion system 3 and the tertiary combustion system 4 are adopted for baking, and the primary combustion system 2 is closed. 3) For the overhaul package, the primary combustion system 2, the secondary combustion system 3 and the tertiary combustion system 4 can be used for co-combustion baking.
The primary combustion system 2 comprises a first gas pipeline 21 and a first combustion-supporting gas pipeline 22, the first combustion-supporting gas pipeline 22 is sleeved outside the first gas pipeline 21, and the primary nozzles 20 are direct-injection umbrella-shaped nozzles, so that heat generated by flame combustion can be fully dispersed, and bottom-wrapped refractory materials can be baked; control valves may be installed at the inlet ends of the first gas pipe 21 and the first combustion supporting gas pipe 22 for adjusting the input amount of the gas and the combustion supporting gas. When the pressure and the flow of the coal gas fluctuate, the input quantity of the combustion-supporting gas and the coal gas can be flexibly adjusted, so that the flame is stable and the temperature is uniform.
The secondary combustion system 3 comprises a second gas pipeline 31 and a second combustion-supporting gas pipeline 32, the second gas pipeline 31 is sleeved between the first gas pipeline 21 and the first combustion-supporting gas pipeline 22, and the second combustion-supporting gas pipeline 32 is sleeved outside the first combustion-supporting gas pipeline 22; the secondary nozzle 30 is a multi-stream combustion channel and is arranged at the bottom of the secondary combustion system 3; control valves can be arranged at the inlet ends of the second gas pipeline 31 and the second combustion-supporting gas pipeline 32 for adjusting the input amount of the gas and the combustion-supporting gas.
The third-stage combustion system is formed in the middle of the second gas pipeline 31 and the second combustion-supporting gas pipeline 32, and the third-stage nozzle 40 is formed in the middle of the second gas pipeline 31 and the second combustion-supporting gas pipeline 32.
The utility model discloses in this ladle roaster, including one-level combustion system 2, second grade combustion system 3 and tertiary combustion system 4, toasting the in-process, adopted tertiary burning, toast that flame is even, the temperature is even, practice thrift toasting time and coal gas use amount simultaneously. When the three-stage combustion ladle roaster is used, the three-stage combustion ladle roaster directly extends into a ladle, so that flame directly reaches the bottom of the ladle 1, and the roasting effect on refractory materials at the bottom of the ladle, namely air bricks, brick cups and nozzles, is better. Simultaneously, this ladle roaster's tertiary burning has all toasted whole ladle inner wall, has the temperature from the package bottom to the package wall for toast very evenly in the whole ladle. The adopted three-stage combustion control can reasonably control the baking temperature and time according to the maintenance condition of the heat-preservation refractory material, and save the coal gas consumption and the baking time; the condition that the temperature of the refractory material at the bottom of the ladle 1 is not uniform in baking is solved, and the occurrence of cracking accidents of the refractory material is avoided.
In addition, this ladle roaster toasts earlier stage, can adopt oxy-fuel combustion, oxygen boosting burning, carries oxygen or oxygen boosting gas in the combustion-supporting gas pipeline promptly, guarantees the combustion effect, especially makes in winter, under the not good condition of coal gas quality, uses oxy-fuel combustion, oxygen boosting burning can guarantee that quick end ladle toasts and the ladle uses, guarantees that production is stable in the same direction as the line.
Further, a first gas conveying channel is formed inside the first gas pipeline 21, and a first combustion-supporting gas conveying channel is formed between the first combustion-supporting gas pipeline 22 and the first gas pipeline 21; and the outlet end of the first combustion-supporting gas pipeline 22 is arranged below the outlet end of the first gas pipeline 21, so that a space is reserved between the outlet end of the first combustion-supporting gas pipeline 22 and the outlet end of the first gas pipeline 21, a mixing cavity 5 is installed in the reserved space, the mixing cavity 5 is used for mixing combustion-supporting gas and gas, and the combustion-supporting gas can be air or mixed gas of air and oxygen, and the like. When the primary combustion system 2 is used, oxygen is generally used in the early stage and air is generally used in the later stage for combustion supporting.
The coal gas is conveyed into the mixing cavity 5 through the first coal gas conveying channel and the combustion-supporting gas is conveyed into the mixing cavity 5 through the combustion-supporting gas conveying channel, and gas mixing is carried out, so that the gas mixing is more uniform, and later combustion is facilitated; correspondingly, the coal gas and the combustion-supporting gas are mixed and then sprayed for combustion, and due to the fact that the coal gas and the combustion-supporting gas are mixed uniformly and fully in advance, when the coal gas and the combustion-supporting gas are combusted at the position of the primary nozzle 20, the coal gas and the combustion-supporting gas can be fully combusted, heat of flame combustion is fully exerted, impact force is large, the flame descending effect is good, the coal gas combustion flame directly impacts the bottom of the steel ladle 1, temperature rise is fast, and baking time is saved.
Specifically, the mixing cavity 5 is in a hollow truncated cone shape with two open ends, and is provided with a second large opening end 50, a second small opening end 51 and a conical surface 52; the second small opening end 51 is stopped at the outlet end of the first gas pipeline 21, so that the first gas conveying channel is communicated with the inside of the mixing cavity 5; the second large opening end 50 is fixedly connected with the outlet end of the first combustion-supporting gas pipeline 22; and a plurality of first through holes are formed in the conical surface 52, so that the first combustion-supporting gas conveying channel is communicated with the interior of the mixing cavity 5.
Meanwhile, a baffle plate 23 is fixedly installed at the outlet end of the first combustion-supporting gas pipeline 22, the second large opening end 50 of the mixing cavity 5 is covered by the baffle plate 23, and a plurality of second through holes are formed in the baffle plate 23 and used for jetting combustion-supporting gas. The diameter of the first through hole and the diameter of the second through hole are about 3 mm-6 mm, mixed gas can be conveniently and smoothly sprayed out from the first-stage nozzle 20 under high pressure, the nozzle directly reaches the bottom of the bag, and the distance between the nozzle and the refractory material at the bottom of the bag is 1000mm.
Specifically, the outlet end of the first gas pipeline 21 may be trumpet-shaped, so as to increase the injection area. Or a triangular cone baffle plate 24 is arranged at the outlet end of the first gas pipeline 21, the triangular cone baffle plate 24 is inverted, and a plurality of third through holes are formed in the outer wall surface of the triangular cone baffle plate 24. The high-pressure gas is sprayed out through the third through hole and is sprayed into the mixing cavity 5, so that the high-pressure combustion-supporting gas and the high-pressure gas are conveniently and fully mixed, and the rapid combustion is facilitated. The triangular cone baffle plate 24 structure has a large contact area with air, and sprays in multiple directions to facilitate mixing. The diameter of the third through hole is about 3 mm-4 mm, so that gas can be smoothly sprayed out under high pressure.
Specifically, still can utilize fire-resistant ramming mass to form first ramming layer around one-level spout 20 department, guarantee that the steel construction spout does not receive high temperature to damage.
Further, a second gas conveying channel is formed between the second gas pipeline 31 and the first gas pipeline 21, and an outlet end of the second gas pipeline 31 is located below an outlet end of the second combustion-supporting gas pipeline 32 and above an outlet end of the first gas pipeline 21.
A sealed air box body 6 is sleeved at the outlet end of the second gas pipeline 32, and the diameter of the sealed air box body 6 is larger than that of the second combustion-supporting gas pipeline 32; the upper end of the sealed air box 6 is fixedly connected with the outlet end of the second combustion-supporting gas pipeline 31, and a fourth through hole is formed in the upper end of the sealed air box 6 so as to communicate the second combustion-supporting gas pipeline 32 with the sealed air box 6, in the embodiment, the diameter of the fourth through hole is about 6mm to 10mm, and high-pressure combustion-supporting gas can conveniently enter the sealed air box 6 in the secondary combustion system 3. The lower end of the sealed air box body 6 is hermetically welded with a first combustion-supporting gas pipeline 22 at a primary nozzle 20 of the primary combustion system 2, and the sealed air box body 6 is fixedly installed.
A plurality of first connecting pipelines 60 are arranged in the sealed air box 6, one end of each first connecting pipeline 60 is communicated with the second gas pipeline 31, and the other end of each first connecting pipeline 60 is stopped at the inner wall side of the sealed air box 6, so that the gas in the second gas pipeline 31 is sprayed out of the sealed air box 6.
Specifically, a first hole 61 is formed in a first connecting pipeline 60 of the sealed air box 6 for injecting coal gas; in this embodiment, the diameter of the first hole 61 is about 1mm to 3 mm. A plurality of second holes 62 are formed around the first hole of the sealed air box body 6 and used for jetting air; the diameter of the second hole 62 is about 0.5 mm-1.5 mm, and a combustion unit is formed by the first hole and the second hole, and the combustion unit is a multi-stream, similar to a shower head of a shower, and is sprayed out from a single nozzle, so that flame combustion is stable, and the temperature is uniform and stable.
Specifically, the outer wall of sealed air box 6 utilizes the fire-resistant ramming mass to form the second and rammes the layer, arranges according to whole combustion system size in sealed air box 6 upper end, and the outside is used refractory material to stamp, and thickness is 50mm, and the thickness of resistant material is just in time for the air of a combustion unit, the regional area is forced to mix to coal gas, and air, coal gas that mix burns at ladle 1, have formed second grade combustion system 2, and flame stabilization and even toast a packet wall resistant material quality better.
Further, the air pipeline and the gas pipeline of the tertiary combustion system 4 and the second gas pipeline 31 and the second combustion-supporting gas pipeline 32 of the secondary combustion system 3 use the same pipeline. Correspondingly, a plurality of third holes are formed in the middle of the second combustion-supporting gas pipeline 32 and used for jetting air; in this embodiment, the diameter of the third hole is about 3mm to 6 mm. Meanwhile, a second connecting pipeline 7 is arranged between the middle part of the second combustion-supporting gas pipeline 32 and the second gas pipeline 31, one end of the second connecting pipeline 7 is communicated with the second gas pipeline 31, and the other end of the second connecting pipeline is stopped at the inner wall side of the second combustion-supporting gas pipeline 32, so that the gas in the second gas pipeline 31 is sprayed out of the second combustion-supporting gas pipeline 32.
In addition, another combustion unit is formed by the combination of the second connecting duct 7 and the passage of the second combustion supporting gas duct 32, which is different from the combustion unit in the secondary combustion system, and which has a simple structure. Correspondingly, a third ramming layer is formed on the outer wall surface of the middle part of the second combustion-supporting gas pipeline 32 by using a refractory ramming material, the exterior of the second combustion-supporting gas pipeline 32 is rammed by using the refractory material, the thickness of the third ramming layer is 50mm, the thickness of the refractory material is just equal to the forced air-gas mixing area of one combustion unit, the mixed air-gas is stably combusted in the steel ladle 1, and the combustion system is mainly used for baking the upper refractory material of the steel ladle 1 and is mainly used for minor repair of the steel ladle, such as repair of a slag line part, repair of a wall refractory material and the like.
This ladle roaster uses the installation in-process, can cooperate dedicated be built by contract and hoist equipment to use, and this ladle roaster installs at the be built by contract middle part, uses the hoist to go up and down. The ladle roaster can be designed to be horizontal, and is more convenient and quicker to bake and has the best use effect.
The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.
Claims (9)
1. The utility model provides a ladle roaster for the toasting of ladle which characterized in that: the device comprises three independent primary combustion systems, a secondary combustion system and a tertiary combustion system; the primary combustion system is provided with a primary nozzle, the secondary combustion system is provided with a secondary nozzle, the tertiary combustion system is provided with a tertiary nozzle, and the tertiary nozzle, the secondary nozzle and the primary nozzle are sequentially arranged from top to bottom;
the primary combustion system comprises a first gas pipeline and a first combustion-supporting gas pipeline, the first combustion-supporting gas pipeline is sleeved outside the first gas pipeline, and the primary nozzle is a direct-injection umbrella-shaped nozzle;
the secondary combustion system comprises a second gas pipeline and a second combustion-supporting gas pipeline, the second gas pipeline is sleeved between the first gas pipeline and the first combustion-supporting gas pipeline, and the second combustion-supporting gas pipeline is sleeved outside the first combustion-supporting gas pipeline; the secondary nozzle is a multi-stream combustion channel and is arranged at the bottom of the secondary combustion system;
the middle parts of the second gas pipeline and the second combustion-supporting gas pipeline form the three-stage combustion system, and the middle parts of the second gas pipeline and the second combustion-supporting gas pipeline form the three-stage nozzle.
2. The ladle roaster as claimed in claim 1, wherein:
a first gas conveying channel is formed inside the first gas pipeline, and a first combustion-supporting gas conveying channel is formed between the first combustion-supporting gas pipeline and the first gas pipeline; and the outlet end of the first combustion-supporting gas pipeline is arranged below the outlet end of the first gas pipeline, so that a space is reserved between the outlet end of the first combustion-supporting gas pipeline and the outlet end of the first gas pipeline, and a mixing cavity is arranged in the reserved space.
3. The ladle roaster as claimed in claim 2, wherein:
the mixing cavity is in a hollow truncated cone shape with two open ends and is provided with a second large opening end, a second small opening end and a conical surface; the second small opening end is stopped at the outlet end of the first gas pipeline so as to enable the first gas conveying channel to be communicated with the interior of the mixing cavity; the second large opening end is fixedly connected with the outlet end of the first combustion-supporting gas pipeline; a plurality of first through holes are formed in the conical surface, so that the first combustion-supporting gas conveying channel is communicated with the interior of the mixing cavity;
and a baffle is fixedly arranged at the outlet end of the first combustion-supporting gas pipeline, the baffle cover covers the second large opening end of the mixing cavity, and a plurality of second through holes are formed in the baffle.
4. The ladle roaster as claimed in claim 3, wherein:
and a triangular cone baffle is arranged at the outlet end of the first gas pipeline, the triangular cone baffle is inverted, and a plurality of third through holes are formed in the outer wall surface of the triangular cone baffle.
5. The ladle roaster as claimed in claim 1, wherein:
a second gas conveying channel is formed between the second gas pipeline and the first gas pipeline, and the outlet end of the second gas pipeline is positioned below the outlet end of the second combustion-supporting gas pipeline and above the outlet end of the first gas pipeline;
a sealed air box body is sleeved at the outlet end of the second gas pipeline, the upper end of the sealed air box body is fixedly connected with the outlet end of the second combustion-supporting gas pipeline, and a fourth through hole is formed in the upper end of the sealed air box body so as to enable the second combustion-supporting gas pipeline to be communicated with the sealed air box body;
and a plurality of first connecting pipelines are arranged in the sealed air box body, one end of each first connecting pipeline is communicated with the second gas pipeline, and the other end of each first connecting pipeline is abutted against the inner wall side of the sealed air box body, so that the gas in the second gas pipeline is sprayed out of the sealed air box body.
6. The ladle roaster as claimed in claim 5, wherein:
a first hole is formed in a first connecting pipeline of the sealed air box body and used for jetting coal gas; and a plurality of second holes are arranged around the first hole of the sealed air box body and used for jetting air.
7. The ladle roaster as claimed in claim 6, wherein:
and forming a second ramming layer on the outer wall surface of the sealed air box body by using a refractory ramming material.
8. The ladle roaster as claimed in claim 1, wherein:
a plurality of third holes are formed in the middle of the second combustion-supporting gas pipeline and used for jetting air;
and a second connecting pipeline is arranged between the middle part of the second combustion-supporting gas pipeline and the second gas pipeline, one end of the second connecting pipeline is communicated with the second gas pipeline, and the other end of the second connecting pipeline is stopped against the inner wall side of the second combustion-supporting gas pipeline, so that the gas in the second gas pipeline is sprayed out of the second combustion-supporting gas pipeline.
9. The ladle roaster as claimed in claim 8, wherein:
and the outer wall surface in the middle of the second combustion-supporting gas pipeline forms a third ramming layer by using a refractory ramming material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221867236.1U CN218425585U (en) | 2022-07-19 | 2022-07-19 | Ladle roaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221867236.1U CN218425585U (en) | 2022-07-19 | 2022-07-19 | Ladle roaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218425585U true CN218425585U (en) | 2023-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221867236.1U Active CN218425585U (en) | 2022-07-19 | 2022-07-19 | Ladle roaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218425585U (en) |
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2022
- 2022-07-19 CN CN202221867236.1U patent/CN218425585U/en active Active
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