CN113720148A

CN113720148A - Side-blown furnace

Info

Publication number: CN113720148A
Application number: CN202111295644.4A
Authority: CN
Inventors: 郝小红; 周钢; 曹珂菲; 冯双杰; 崔大韡; 李栋; 林屹; 许欣; 林圣尧; 孔令卓; 金修丞
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2021-11-30

Abstract

The invention discloses a side-blown converter, which comprises: the furnace body is internally provided with a hearth, the top end of the furnace body is provided with a smoke outlet, and the smoke outlet is communicated with the hearth; the water jacket is arranged at the smoke outlet, the water jacket defines a smoke cavity, the upper end of the smoke cavity is opened so as to form an upper opening, the lower end of the smoke cavity is opened so as to form a lower opening, and the lower opening is communicated with the hearth; and the first smoke blocking part is positioned in the hearth, the upper end part of the first smoke blocking part is adjacent to the top wall surface of the hearth, and the first smoke blocking part is adjacent to the smoke air cavity so as to block smoke flowing to the smoke air cavity. Therefore, the side-blown converter provided by the embodiment of the invention has the advantages of long service life of the water jacket, difficulty in blocking the flue gas cavity, long service life of the furnace body and the like.

Description

Side-blown furnace

Technical Field

The invention relates to the field of side-blown furnaces, in particular to a side-blown furnace.

Background

The side-blown converter is a vertical molten pool smelting furnace, and concentrate, flux and fuel, etc. are added into the strongly stirred melt through the charging hole on the top of the furnace. Oxygen-enriched air is blown into the slag layer through the primary air ports on the two sides, the melt is intensively stirred, the added materials are quickly and uniformly distributed in the melt, and the mass and heat transfer process is realized between the melt and the furnace burden and between the blown gas. The smoke generated in the smelting production process is discharged through the smoke outlet, the using state of the smoke outlet is one of the key parts for ensuring the continuous production, the smoke outlet is easy to burn and lose due to the scouring and erosion of high-temperature smoke, particularly SO2 smoke, the service life is shortened, and simultaneously a large amount of smoke is brought into the smoke outlet and enters the uptake flue to cause the adhesion of the waste heat boiler, thereby affecting the production operation rate. Meanwhile, air leakage and water leakage are easily caused, the environment is polluted, and potential safety production hazards are also caused.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, embodiments of the present invention propose a side-blown converter.

The side-blown converter according to the embodiment of the invention comprises:

the furnace body is internally provided with a hearth, the top end of the furnace body is provided with a smoke outlet, and the smoke outlet is communicated with the hearth;

the water jacket is arranged at the smoke outlet, the water jacket defines a smoke cavity, the upper end of the smoke cavity is opened so as to form an upper opening, the lower end of the smoke cavity is opened so as to form a lower opening, and the lower opening is communicated with the hearth; and

the first smoke blocking part is positioned in the hearth, the upper end part of the first smoke blocking part is adjacent to the top wall surface of the hearth, and the first smoke blocking part is adjacent to the smoke air cavity so as to block smoke flowing to the smoke air cavity.

Therefore, the side-blown converter provided by the embodiment of the invention has the advantages of long service life of the water jacket, difficulty in blocking the flue gas cavity, long service life of the furnace body and the like.

In some embodiments, a first portion of the water jacket extends downward into the furnace, the first portion of the water jacket constituting the first smoke stop.

In some embodiments, the furnace body comprises:

the first side wall and the second side wall are oppositely arranged in the width direction of the furnace body;

the first side wall, the third side wall, the second side wall and the fourth side wall are sequentially connected; and

the top wall is arranged on the first side wall, the third side wall, the second side wall and the fourth side wall, the smoke outlet is arranged on the top wall, the smoke outlet comprises a first wall surface and a second wall surface which are opposite in the width direction of the furnace body and a third wall surface and a fourth wall surface which are opposite in the length direction of the furnace body, the first wall surface is adjacent to the first side wall relative to the second wall surface, the third wall surface is adjacent to the third side wall relative to the fourth wall surface, the water jacket comprises a first side water jacket, a second side water jacket, a third side water jacket and a fourth side water jacket, the first side water jacket is arranged on the first wall surface, the second side water jacket is arranged on the second wall surface, the third side water jacket is arranged on the third wall surface, and the fourth side water jacket is arranged on the fourth wall surface.

In some embodiments, the first wall of the outlet is spaced apart from the first sidewall, the second wall of the outlet is spaced apart from the second sidewall, the third wall of the outlet is spaced apart from the third sidewall, the fourth wall of the outlet is spaced apart from the fourth sidewall, and the first portion of the water jacket is annular;

or, the first wall surface of the smoke outlet is adjacent to the first side wall, the second wall surface of the smoke outlet is adjacent to the second side wall, the third wall surface of the smoke outlet is adjacent to the third side wall, the fourth wall surface of the smoke outlet and the fourth side wall are arranged at intervals, and a part of the fourth side water jacket extends downwards into the hearth so as to form the first smoke blocking part;

or, the first wall surface of the smoke outlet is adjacent to the first side wall, the second wall surface of the smoke outlet is adjacent to the second side wall, the third wall surface of the smoke outlet is arranged at a distance from the third side wall, the fourth wall surface of the smoke outlet is arranged at a distance from the fourth side wall, the first part of the water jacket is plate-shaped, the third side water jacket and the fourth side water jacket extend downwards into the furnace chamber, and the part of the third side water jacket and the fourth side water jacket extending into the furnace chamber is the first part.

The side-blown converter further comprises an outer shell, the outer shell is located on the outer side of the water jacket, the outer shell is connected with the part, extending out of the smoke outlet, of the water jacket, and the outer shell is arranged on the furnace body.

In some embodiments, the outer shell includes a first side plate and a second side plate opposite to each other in the width direction of the furnace body, and a third side plate and a fourth side plate opposite to each other in the length direction of the furnace body, the third side plate is disposed outside the third side water jacket, the third side water jacket extends into the furnace chamber and is connected with the third side wall, and the third side plate extends into the furnace chamber and is connected with the third side wall.

In some embodiments, the inner wall surface of the water jacket is tooth-shaped, and the inner wall surface of the water jacket is provided with a refractory material layer.

In some embodiments, the first smoke blocking part comprises a plurality of cooling water pipes arranged in an up-down direction, and each cooling water pipe has a water inlet and a water outlet.

The side-blown converter further comprises a second smoke blocking part positioned in the hearth, the second smoke blocking part comprises a plurality of cooling water pipes which are arranged in an up-and-down direction, each cooling water pipe is provided with a water inlet and a water outlet, and the upper part of the smoke blocking part is matched with the lower part of the first smoke blocking part.

In some embodiments, a first end of each cooling water pipe penetrates through the first side wall so as to extend out of the furnace body, a second end of each cooling water pipe penetrates through the second side wall so as to extend out of the furnace body, the water inlet is arranged on the first end, and the water outlet is arranged on the second end.

Drawings

Fig. 1 is a structural view of a side-blown furnace according to an embodiment of the present invention.

Fig. 2 is a structural view of a water jacket according to an embodiment of the present invention.

Fig. 3 is a structural view of a side-blown furnace according to an embodiment of the present invention.

Fig. 4 is a structural view of a side-blown furnace according to an embodiment of the present invention.

Fig. 5 is a structural view of a side-blown furnace according to an embodiment of the present invention.

Fig. 6 is a structural view of a side-blown furnace according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The side-blown furnace 1000 according to an embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in fig. 1 to 6, a side-blown furnace 1000 according to an embodiment of the present invention includes a furnace body 100, a water jacket 200, and a first smoke stop 300.

Be equipped with furnace 101 in the furnace body 100, the top of furnace body 100 is equipped with outlet flue 160, and outlet flue 160 and furnace 101 intercommunication, the flue gas in the furnace 101 passes through outlet flue 160 and discharges out of furnace 101.

A water jacket 200 is provided at the smoke outlet 160, the water jacket 200 defining a smoke chamber 201. The upper end of the flue gas chamber 201 is open to form an upper opening 202, the lower end of the flue gas chamber 201 is open to form a lower opening 203, and the lower opening 203 communicates with the furnace 101. Therefore, after the flue gas in the hearth 101 enters the flue gas chamber 201 from the lower opening 203, the flue gas chamber 201 is discharged from the upper opening 202, and the water jacket 200 can cool the flue gas in the flue gas chamber 201, so that the high-temperature flue gas is prevented from damaging the pipeline of the next process.

The first smoke barrier 300 is located in the furnace 101, and the upper end of the first smoke barrier 300 is adjacent to the top wall surface of the furnace 101. The upper end portion of the first smoke barrier 300 adjacent to the top wall surface of the firebox 101 includes: a. the top surface of the upper end of the first smoke blocking part 300 is positioned below the top wall surface of the hearth 101, and the height difference between the top surface of the upper end of the first smoke blocking part 300 and the top wall surface of the hearth 101 is less than or equal to a preset value; b. the top surface of the upper end of the first smoke baffle 300 is on the same horizontal plane with the top wall surface of the hearth 101; c. the top surface of the upper end of the first smoke blocking part 300 is located above the top wall surface of the hearth 101, and the height difference between the top surface of the upper end of the first smoke blocking part 300 and the top wall surface of the hearth 101 is less than or equal to a preset value.

The first smoke stop portion 300 is adjacent to the smoke chamber 201 so as to stop the smoke flowing toward the smoke chamber 201. The first smoke stop portion 300 includes, adjacent to the smoke chamber 201: a. the first smoke blocking part 300 is positioned outside the smoke gas cavity 201, and the distance between the first smoke blocking part 300 and the wall surface of the smoke gas cavity 201 is smaller than or equal to a preset value; b. the first smoke blocking part 300 is positioned on the inner side of the smoke air cavity 201, and the distance between the first smoke blocking part 300 and the wall surface of the smoke air cavity 201 is smaller than or equal to a preset value; c. the first smoke stop portion 300 is flush with the wall surface of the smoke chamber 201.

The side-blown converter 1000 according to the embodiment of the invention is provided with the first smoke stop portion 300, and the first smoke stop portion 300 is adjacent to the top wall surface of the hearth 101 and the flue gas chamber 201. Therefore, the flue gas at the top of the hearth 101 can be blocked by the first smoke blocking part 300 when flowing to the flue gas chamber 201, and the blocked flue gas flows to the flue gas chamber 201 from the bottom of the first smoke blocking part 300 after being gathered. In the process that the flue gas on the top of the hearth 101 is blocked, the speed of the flue gas is reduced, and the flow direction is changed from the horizontal direction to the vertical direction. Therefore, when the flue gas flows from the bottom of the first smoke stop 300 to the flue gas chamber 201, the speed of the flue gas is reduced, and a part of the solid particles in the flue gas flow into the slag layer below the hearth 101. The flow direction of the decelerated flue gas is from bottom to top, the inner wall surface of the water jacket 200 is not directly washed, the corrosion of the flue gas to the water jacket 200 is reduced, the service life of the water jacket 200 is prolonged, and solid particles in the flue gas can be prevented from being bonded on the inner wall surface of the water jacket 200, so that the solid particles in the flue gas can be prevented from being nodulated on the inner wall surface of the water jacket 200 to block the flue gas cavity 201. Therefore, the situation that the inner wall surface of the water jacket 200 is bonded with the large lump of nodules is reduced, meanwhile, the phenomenon that the large lump of nodules falls down to cause molten liquid splashing in the hearth 101 is reduced, and the damage to the furnace body 100 is reduced.

Therefore, the side-blown converter 1000 according to the embodiment of the present invention has the advantages of long service life of the water jacket 200, difficult blockage of the flue gas chamber 201, long service life of the furnace body 100, etc.

As shown in fig. 1 and 2, in some embodiments, a first portion of the water jacket 200 extends downward into the furnace 101, the first portion of the water jacket 200 constituting a first smoke stop 300. That is, the water jacket 200 is integrated with the first smoke stop 300, facilitating the manufacture and installation of the first smoke stop 300. The first portion (the first smoke stop portion 300) of the water jacket 200 can block the smoke, preventing the smoke from directly washing the inner wall surface of the water jacket 200.

As shown in fig. 1 to 6, the furnace body 100 includes a first side wall 110, a second side wall 120, a third side wall 130, a fourth side wall 140, and a top wall 150.

The first side wall 110 and the second side wall 120 are disposed opposite to each other in the width direction of the furnace body 100, for example, the first side wall 110 and the second side wall 120 are long sides of the furnace body 100. The third and

fourth side walls

130 and 140 are oppositely disposed in the length direction of the furnace body 100, for example, the third and

fourth side walls

130 and 140 are short sides of the furnace body 100. The first side wall 110, the third side wall 130, the second side wall 120 and the fourth side wall 140 are connected in sequence. The top wall 150 is provided on the first, third, second and

fourth side walls

110, 130, 120 and 140. The width direction of the furnace body 100 may be a left-right direction as indicated by an arrow a in fig. 5, and the length direction of the furnace body 100 may be a front-back direction as indicated by an arrow B in fig. 5. The outlet 160 is provided on the top wall 150, for example, the outlet 160 may have a rectangular cross section. The smoke outlet 160 includes a first wall 161 and a second wall 162 that are opposite in the width direction of the furnace body 100, and for example, the first wall 161 and the second wall 162 may be short sides of the smoke outlet 160. The smoke outlet 160 further includes a third wall 163 and a fourth wall 164 opposite in the length direction of the furnace body 100, for example, the third wall 163 and the fourth wall 164 may be long sides of the smoke outlet 160. First wall 161 is adjacent first side wall 110 relative to second wall 162 and third wall 163 is adjacent third side wall 130 relative to fourth wall 164. For example, the first sidewall 110 may be a right sidewall, and the first wall 161 may be a right sidewall; the second sidewall 120 may be a left sidewall, and the second wall 162 may be a left sidewall; third sidewall 130 may be a rear sidewall, third sidewall 163 may be a rear sidewall, fourth sidewall 140 may be a front sidewall, and fourth sidewall 164 may be a front sidewall.

Wherein the water jacket 200 includes a first side water jacket 210, a second side water jacket 220, a third side water jacket 230, and a fourth side water jacket 240. The first side water jacket 210 is provided on the first wall surface 161, the second side water jacket 220 is provided on the second wall surface 162, the third side water jacket 230 is provided on the third wall surface 163, and the fourth side water jacket 240 is provided on the fourth wall surface 164. That is, the water jacket 200 may be substantially annular.

In some embodiments, the first wall 161 of the smoke outlet 160 is spaced apart from the first side wall 110, the second wall 162 of the smoke outlet 160 is spaced apart from the second side wall 120, the third wall 163 of the smoke outlet 160 is spaced apart from the third side wall 130, and the fourth wall 164 of the smoke outlet 160 is spaced apart from the fourth side wall 140. That is, the wall surface of the smoke outlet 160 and the side wall of the furnace body 100 are spaced apart.

The first portion of the water jacket 200 is annular, so that the first portion of the water jacket 200 can block the smoke in the entire circumference of the smoke outlet 160, i.e., the first portion can block the smoke directly flowing to the first wall 161, the second wall 162, the third wall 163 and the fourth wall 164. So that the first portion (the first smoke stop portion 300) of the water jacket 200 can block the smoke at the top of the furnace 101 from directly flowing from the smoke outlet 160 to the smoke outlet 160 in the circumferential direction. Therefore, the first portion (the first smoke stop portion 300) of the annular water jacket 200 reduces the occurrence of corrosion of the inner wall surface of the water jacket 200 by the flue gas and the adhesion of the large lump of nodules, thereby reducing damage to the furnace body 100.

As shown in fig. 6, in some embodiments, the first wall 161 of the smoke outlet 160 is adjacent to the first side wall 110, the second wall 162 of the smoke outlet 160 is adjacent to the second side wall 120, the third wall 163 of the smoke outlet 160 is adjacent to the third side wall 130, and the fourth wall 164 of the smoke outlet 160 is spaced apart from the fourth side wall 140.

The first wall 161 of the smoke outlet 160 adjacent to the first side wall 110 means: the distance between the first wall 161 of the smoke outlet 160 and the first side wall 110 is less than or equal to a preset value. Therefore, the space between the first wall 161 and the first side wall 110 is smaller, and the smoke between the first wall 161 and the first side wall 110 is smaller, so that the impact of the smoke between the first wall 161 and the first side wall 110 on the second wall 162 is smaller, the corrosion is smaller, a smoke blocking part is not required to be arranged, and the speed and the direction of the smoke do not need to be changed.

The second wall 162 of the smoke outlet 160 adjacent the second side wall 120 means: the distance between the second wall 162 of the smoke outlet 160 and the second side wall 120 is less than or equal to a preset value. Therefore, the space between the second wall surface 162 and the second side wall 120 is smaller, and further, the smoke between the second wall surface 162 and the second side wall 120 is smaller, so that the impact force of the smoke between the second wall surface 162 and the second side wall 120 on the first wall surface 161 is smaller, the corrosion is smaller, a smoke blocking part is not required to be arranged, and the speed and the direction of the smoke do not need to be changed.

The third wall 163 of the mouthpiece 160 adjacent to the third side wall 130 means: the distance between the third wall 163 of the smoke outlet 160 and the third side wall 130 is less than or equal to a preset value. Therefore, the space between the third wall 163 and the third side wall 130 is small, and the smoke between the third wall 163 and the third side wall 130 is small, so that the impact force of the smoke between the third wall 163 and the third side wall 130 on the fourth wall 164 is small, the corrosion is small, a smoke blocking portion is not required to be arranged, and the speed and the direction of the smoke do not need to be changed.

The fourth wall 164 of the smoke outlet 160 being spaced apart from the fourth side wall 140 means that: the distance between the fourth wall 164 of the smoke outlet 160 and the fourth side wall 140 is greater than a predetermined value. Therefore, the space between the fourth wall 164 and the fourth wall 140 is larger, and further, the amount of smoke between the fourth wall 164 and the fourth wall 140 is larger, so that the smoke in the direction opposite to the fourth wall 164 of the smoke outlet 160 directly flows to the smoke outlet 160, and the impact on the water jacket 200 is larger, and the corrosion is more serious. A portion of the fourth side water jacket 240 extends downward into the furnace 101 to constitute a first smoke stop 300. A portion (the first smoke stop portion 300) of the fourth side water jacket 240 can block the smoke on the top of the furnace 101 opposite to the fourth wall 164 of the smoke outlet 160 from directly flowing to the smoke outlet 160. Therefore, the part (the first smoke stop portion 300) of the fourth water jacket 240 reduces the corrosion of the inner wall surface of the water jacket 200 by the smoke and the occurrence of the adhesion of the large lump and lump, and reduces the damage to the furnace body 100.

In some embodiments, the first wall 161 of the smoke outlet 160 is adjacent to the first side wall 110, the second wall 162 of the smoke outlet 160 is adjacent to the second side wall 120, the third wall 163 of the smoke outlet 160 is spaced apart from the third side wall 130, and the fourth wall 164 of the smoke outlet 160 is spaced apart from the fourth side wall 140.

The third wall 163 of the smoke outlet 160 being spaced apart from the third wall 130 means that: the distance between the third wall 163 of the smoke outlet 160 and the third side wall 130 is greater than the preset value. Therefore, the space between the third wall 163 and the third side wall 130 is large, and further, the smoke is large between the third wall 163 and the third side wall 130, so that the impact force to the water jacket 200 is large and the corrosion is serious when the smoke in the direction opposite to the third wall 163 of the smoke outlet 160 directly flows to the smoke outlet 160.

The fourth wall 164 of the smoke outlet 160 being spaced apart from the fourth side wall 140 means that: the distance between the fourth wall 164 of the smoke outlet 160 and the fourth side wall 140 is greater than a predetermined value. Therefore, the space between the fourth wall 164 and the fourth wall 140 is larger, and further, the amount of smoke between the fourth wall 164 and the fourth wall 140 is larger, so that the smoke in the direction opposite to the fourth wall 164 of the smoke outlet 160 directly flows to the smoke outlet 160, and the impact on the water jacket 200 is larger, and the corrosion is more serious.

The first part of the water jacket 200 is plate-shaped, the third side water jacket 230 and the fourth side water jacket 240 extend downwards into the furnace 101, and the part of the third side water jacket 230 and the fourth side water jacket 240 extending into the furnace 101 is the first part. Therefore, the first portion of the water jacket 200 (a portion of the third side water jacket 230 extending into the furnace 101 and a portion of the fourth side water jacket 240 extending into the furnace 101) can block the flue gas at the top of the furnace 101 in the opposite direction to the third wall 163 and the fourth wall 164 of the flue gas outlet 160 from directly flowing to the flue gas outlet 160. Therefore, a part of the third side water jacket 230 and a part of the fourth side water jacket 240 (the first smoke blocking part 300) reduce the corrosion of the inner wall surface of the water jacket 200 by the smoke and the occurrence of the adhesion of large lump nodules, and reduce the damage to the furnace body 100.

In some embodiments, the first portion of the water jacket 200 is not connected to the furnace wall.

In some embodiments, a first end of the first portion of the water jacket 200 (the portion of the third side water jacket 230 and the fourth side water jacket 240 extending into the furnace 101) is connected to the first side wall 110, and a second end of the first portion of the water jacket 200 (the portion of the third side water jacket 230 and the fourth side water jacket 240 extending into the furnace 101) is connected to the second side wall 120. The first and second ends of the first portion of the water jacket 200 are disposed opposite to each other in the horizontal direction, and the first and second ends of the first portion of the water jacket 200 are connected with the first and

second side walls

110 and 120, respectively, so as to block more smoke.

In some embodiments, the first portion of the water jacket 200 extends downward into the furnace 101, and the height of the first portion of the water jacket 200 in the vertical direction is 500mm to 700 mm. For example, the height of the first portion of the water jacket 200 in the up-down direction is 600 mm.

In some embodiments, the inner wall surface of the smoke outlet 160 is an arc-shaped surface, an arc-shaped plate of the first smoke barrier 300.

In some embodiments, the side-blown converter 1000 according to embodiments of the present invention further includes an outer shell 400.

The outer housing 400 is located outside the water jacket 200, the outer housing 400 is connected to a portion of the water jacket 200 protruding the smoke outlet 160, and the portion of the water jacket 200 protruding the smoke outlet 160 refers to a portion of the water jacket 200 located above the furnace body 100. The outer shell 400 is connected with the part of the water jacket 200 extending out of the smoke outlet 160, so that the outer shell 400 can support the water jacket 200, the structural strength of the outer shell 400 and the water jacket 200 is ensured, and deformation is not easy to occur. The outer shell 400 is provided on the furnace body 100, for example, the bottom of the outer shell 400 is connected with the top of the furnace body 100.

As shown in fig. 3 and 5, in some embodiments, the outer case 400 includes first and

second side plates

410 and 420 opposite in a width direction of the furnace body 100 and third and

fourth side plates

430 and 440 opposite in a length direction of the furnace body 100. The third wall 163 of the smoke outlet 160 is adjacent to the third side wall 130, and the third side plate 430 is disposed outside the third side water jacket 230. The third side water jacket 230 extends into the furnace 101 and is connected with the third side wall 130, so that the water jacket 200 is more stably arranged on the smoke outlet 160. The third side plate 430 extends into the furnace 101 to be connected with the third side wall 130, so that the third side plate 430 is more stably disposed on the furnace body 100 and provides support for the portion of the third side water jacket 230 extending into the furnace 101, so that the water jacket 200 is more stably disposed on the furnace body 100.

In some embodiments, the inner wall surface of the water jacket 200 is toothed, and the inner wall surface of the water jacket 200 is provided with a refractory layer. For example, an inner wall surface of the water jacket 200 is lined with firebricks in order to protect the water jacket 200 from corrosion.

In some embodiments, the water jacket 200 is constructed from a plurality of sub-water jackets, each having a water jacket inlet and a water jacket outlet. As shown in fig. 2, the fourth side water jacket 240 includes a first sub-water jacket 241, a second sub-water jacket 242, and a third sub-water jacket 243, thereby facilitating the manufacture and installation of the water jacket 200. The parts of the first, second and

third water jackets

241, 242 and 243 extending into the furnace 101 constitute a first part of the water jacket 200.

Optionally, at least a part of the bottom surface of the portion of the first sub water jacket 241 and the third sub water jacket 243 extending into the furnace 101 is higher than the bottom surface of the portion of the second sub water jacket 242 extending into the furnace 101. For example, the bottom surfaces of the portions of the first and third

sub water jackets

241 and 243 extending into the furnace 101 are inclined surfaces. The flue gas can conveniently enter the middle part of the flue gas cavity 201 from the lower part of the second sub water jacket 242, and the scouring of the inner wall surface of the water jacket 200 is reduced.

In some embodiments, the first smoke blocking part 300 includes a plurality of cooling water pipes 301 arranged in an up-down direction, so that if the cooling water pipes 301 are damaged and need to be replaced, only the damaged cooling water pipes 301 need to be replaced individually, and the rest of the cooling water pipes 301 are not affected, and the whole first smoke blocking part 300 does not need to be replaced. Each cooling water pipe 301 has a water inlet 302 and a water outlet 303, so that cooling water can enter and exit the cooling water pipe 301 through the water inlet 302 and the water outlet 303 to exchange heat, so as to reduce the temperature of flue gas.

In some embodiments, the side-blown converter 1000 according to the embodiment of the present invention further includes a second smoke stop portion located in the furnace 101, the second smoke stop portion includes a plurality of cooling water pipes 301 arranged in an up-down direction, each cooling water pipe 301 has a water inlet 302 and a water outlet 303, and an upper portion of the smoke stop portion is engaged with a lower portion of the first smoke stop portion 300. The second keeps off cigarette portion and has increased and keep off the cigarette area, has further strengthened promptly and has kept off the cigarette effect.

As shown in fig. 4, in some embodiments, a first end of each cooling water pipe 301 passes through the first side wall 110 to extend out of the furnace body 100, a second end of each cooling water pipe 301 passes through the second side wall 120 to extend out of the furnace body 100, a water inlet 302 is provided on the first end, and a water outlet 303 is provided on the second end. The two ends of the cooling water pipe 301 extend out of the furnace body 100, so that the cooling water pipe 301 can be conveniently installed and replaced, and cooling water can be conveniently fed in and out.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A side blown furnace, comprising:

2. The side-blown oven of claim 1, wherein a first portion of said water jacket extends downwardly into said furnace, said first portion of said water jacket constituting said first smoke stop.

3. The side-blown furnace of claim 2, wherein the furnace body comprises:

4. The side-blown converter according to claim 3,

the first wall surface of the smoke outlet is spaced apart from the first side wall, the second wall surface of the smoke outlet is spaced apart from the second side wall, the third wall surface of the smoke outlet is spaced apart from the third side wall, the fourth wall surface of the smoke outlet is spaced apart from the fourth side wall, and the first portion of the water jacket is annular;

5. The side-blown converter of claim 3, further comprising an outer shell located outside the water jacket, the outer shell being connected to a portion of the water jacket extending beyond the smoke outlet, the outer shell being provided on the furnace body.

6. The side-blown furnace of claim 5, wherein the outer shell comprises a first side plate and a second side plate which are opposite in the width direction of the furnace body, and a third side plate and a fourth side plate which are opposite in the length direction of the furnace body, the third side plate is arranged outside the third side water jacket, the third side water jacket extends into the furnace chamber and is connected with the third side wall, and the third side plate extends into the furnace chamber and is connected with the third side wall.

7. The side-blown converter of claim 3, wherein the inner wall surface of the water jacket is toothed and is provided with a refractory layer.

8. The side-blown converter according to claim 4, wherein the first fume shield portion comprises a plurality of cooling water pipes arranged in an up-down direction, each of the cooling water pipes having a water inlet and a water outlet.

9. The side-blown converter of claim 4, further comprising a second smoke-blocking portion located in the furnace, wherein the second smoke-blocking portion comprises a plurality of cooling water pipes arranged in an up-down direction, each cooling water pipe has a water inlet and a water outlet, and the upper portion of the smoke-blocking portion is matched with the lower portion of the first smoke-blocking portion.

10. The side-blown converter according to claim 8 or 9, wherein a first end of each of the cooling water pipes passes through the first side wall so as to extend out of the converter body, a second end of each of the cooling water pipes passes through the second side wall so as to extend out of the converter body, the water inlet is provided on the first end, and the water outlet is provided on the second end.