CN216473314U - Fluid stirring purification element with scroll structure - Google Patents
Fluid stirring purification element with scroll structure Download PDFInfo
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- CN216473314U CN216473314U CN202220033958.0U CN202220033958U CN216473314U CN 216473314 U CN216473314 U CN 216473314U CN 202220033958 U CN202220033958 U CN 202220033958U CN 216473314 U CN216473314 U CN 216473314U
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Abstract
The utility model discloses a fluid stirring purifies component with spiral structure, including the brick core body, the spiral structure has in the brick core body, the spiral structure is followed the length direction setting of brick core body on the arbitrary cross section of brick core body, the spiral structure is plane spiral spring column structure. The utility model discloses can be through adjusting the inside and outside radius and the scroll number of turns of plane spiral spring column structure, make it draw close to the center of brick core body, both guaranteed that fluid stirring purifies the component and has sufficient ventilation channel in order to guarantee ventilation effect, can reach again "only need sweep brick body center part when heat is repaiied to burn oxygen and sweep can, the purpose of the whole brick core face of unnecessary clearance", thereby effectively reduce the intensity of labour that burns oxygen and sweep clearance time and workman, and then avoid blowing the air brick loss that leads to because of burning oxygen and sweep the clearance time overlength too fast, the life of extension fluid purification stirring component.
Description
Technical Field
The utility model relates to a fluid stirring purifies technical field. In particular to a fluid stirring and purifying element with a scroll structure.
Background
The slit type air brick has the advantages of long service life and large air permeability, but the problems of high labor intensity of oxygen combustion, blowing and cleaning, integral cross of a brick core, high slit steel infiltration probability and the like exist in the using process, and the problems seriously affect the normal use of the air brick and further affect the rhythm of steel smelting. Therefore, the existing air brick product needs to be improved urgently, the probability of steel infiltration and cross section of the air brick is reduced on the premise of ensuring the whole service life of the air brick, and the time of oxygen burning and cleaning is reduced as much as possible so as to reduce the labor intensity of on-site hot repair operation.
At present, the probability of steel infiltration and transverse penetration of the air brick is effectively reduced by existing researchers through improving the internal blowing channel structure of the slit-type air brick, but due to the distribution characteristics of the slit blowing channel in the air brick, the whole brick core surface needs to be cleaned when oxygen burning and blowing cleaning are carried out, so that the time for oxygen burning and blowing cleaning is long, the labor intensity is high, the loss of the air brick is accelerated if the oxygen burning and blowing cleaning time is too long, the reduction of the steel smelting cost is not facilitated, and the stirring and purifying effect of the existing air brick on molten steel needs to be further improved.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that a fluid mixing purifies component with scroll structure is provided, this fluid mixing purifies component can be effectively reducing ooze under the adverse effect that the steel brought and the prerequisite of taking place the transection, and it is long to solve simultaneously that current slit formula air brick burns oxygen and blows the clearance time, and intensity of labour is big, the air brick loss is fast and the stirring purifying effect is not enough scheduling problem.
In order to solve the technical problem, the utility model provides a following technical scheme:
a fluid stirring and purifying element with a scroll structure comprises a brick core body, wherein the inside of the brick core body is provided with the scroll structure, the scroll structure is a blowing channel, and the scroll structure is arranged along the length direction of the brick core body; on any cross section of the brick core body, the scroll structure is a plane scroll spring-shaped structure.
In any cross section of the brick core body, the ratio of the inner radius R1 and the outer radius R2 of the flat spiral spring-shaped structure to the length of the cross section radius R is (10-30): (15-100): (25-120).
According to the fluid stirring and purifying element with the scroll structure, on any cross section of the brick core body, the pitch between two adjacent scroll blowing channels in the plane scroll spring-shaped structure is 15-35 mm.
The pitch between two adjacent scroll blowing channels in the flat scroll spring-shaped structure is equal.
In the fluid stirring and purifying element with the scroll structure, on any cross section of the brick core body, the pitches between two adjacent scroll blowing channels in the flat scroll spring-shaped structure form an equal difference array which is increased in sequence from the center to the outside.
In the fluid stirring and purifying element with the scroll structure, on any cross section of the brick core body, the pitches between two adjacent scroll blowing channels in the flat scroll spring-shaped structure form an equal difference array which is reduced in sequence from the center to the outside.
In the fluid stirring and purifying element with the scroll structure, on any cross section of the brick core body, the shortest distance between the scroll structure and the outer vertical surface of the brick core body is 20-40 mm; the width of the scroll structure is 0.10-0.35 mm; on any cross section of the brick core body, the number of spiral turns of the flat spiral spring-shaped structure is 2-5; the taper of the scroll structure is equal to that of the brick core body.
In the fluid stirring purification element with the scroll structure, an auxiliary ventilation channel is further arranged in the brick core body, a first end of the auxiliary ventilation channel is in fluid communication with the outermost blowing channel of the scroll structure, and a second end opening of the auxiliary ventilation channel is positioned on the upper end face of the brick core body between the outermost blowing channel of the scroll structure and the outer vertical face of the brick core body; the height of the brick core body where the auxiliary ventilation channel is located is 1/8-1/10 of the whole height of the brick core body; the ratio of the total ventilation area of the auxiliary ventilation channel to the total blowing area of the scroll structure is (1-2): 10; the cross section of the auxiliary ventilation channel is a rectangle with the width of 0.10-0.35 mm.
In the fluid stirring and purifying element with the scroll structure, the distances from the second end openings of all the auxiliary ventilating channels to the outer vertical surface of the brick core body are equal; the included angle alpha between the central axis X of the auxiliary ventilation channel and the cross section of the brick core body is 15-60 degrees; on the scroll structure: and recording a tangent line taking the intersection point of the central axis X of the auxiliary ventilation channel and the scroll structure as a tangent point as a tangent line Y, wherein the included angle beta between the central axis X and the tangent line Y is 30-60 degrees, and the direction of the blowing direction of the auxiliary ventilation channel is opposite to the scroll direction of the scroll structure.
The fluid stirring and purifying element with the scroll structure also comprises a metal steel shell, a refractory mud layer, a metal bottom plate and a metal tail pipe; the metal steel shell is fixedly arranged on the outer wall surface of the brick core body through the refractory mortar layer, the metal bottom plate is positioned at the air inlet end of the brick core body and is fixedly connected with the metal steel shell on the side wall surface of the brick core body, and the metal tail pipe is fixedly connected with the metal bottom plate; a gas chamber is arranged between the metal bottom plate and the bottom wall of the brick core body, a fluid inlet end of the gas chamber is in fluid communication with a fluid outlet end of the metal tail pipe through a bottom plate vent hole formed in the metal bottom plate, and a fluid outlet end of the gas chamber is in fluid communication with a fluid inlet end of the scroll structure;
the brick core body also comprises a brick core connecting body, and two ends of the brick core connecting body are respectively fixed on the inner wall of the scroll structure; the ratio of the total cross-sectional area of the brick core connecting body to the expansion area of the scroll structure is (1:5) - (1: 10); the cross section of the brick core connector is isosceles trapezoid, regular triangle, oval or round; the height of the air chamber is 5 mm.
The technical scheme of the utility model following profitable technological effect has been obtained:
1. the utility model discloses set the gas channel among the fluid mixing purifying element to the cross section and be the gas channel of blowing of flat spiral spring column structure, compare traditional gas channel, the gas channel of this kind of flat spiral spring column structure not only link up whole brick core body on vertical, also link up in brick core body circumferencial direction moreover, should blow the passageway promptly and be each direction and link up on the slit aspect. The utility model discloses even this kind of fluid stirring purification element with scroll structure takes place to block up in the use locally, gaseous also can walk around the plug and can not influence normal ventilation function, and in the in-service process, the brick body between two adjacent gas blowing channels takes place to peel off and also can not influence the normal use at other positions, consequently makes it have better thermal shock resistance stability, effectively reduces because of taking place oozing the influence that steel and violently disconnected fluid stirring purification element.
2. The utility model discloses can be through adjusting the inside and outside radius and the scroll number of turns of plane spiral spring column structure, make it draw close to the center of brick core body, both guaranteed that fluid stirring purifies the component and has sufficient ventilation channel in order to guarantee ventilation effect, can reach again "only need sweep brick body center part when heat is repaiied to burn oxygen and sweep can, the purpose of the whole brick core face of unnecessary clearance", thereby effectively reduce the intensity of labour that burns oxygen and sweep clearance time and workman, and then avoid blowing the air brick loss that leads to because of burning oxygen and sweep the clearance time overlength too fast, the life of extension fluid purification stirring component. In addition, the purpose of regulating and controlling the air permeability can be achieved by regulating the distribution condition of the volute spiral air blowing channel.
3. The utility model discloses a further improve the stirring purifying effect of fluid stirring purifying element, set up supplementary ventilative passageway on the brick core body. The height of the brick core body where the auxiliary ventilation channel is located is 1/8-1/10 of the whole height of the brick core body, and the auxiliary ventilation channel is communicated with the outermost circle of the blowing channel of the scroll structure through fluid; when the width of the air blowing channel is constant and the pitch between two adjacent scroll air blowing channels is equal or the pitch between two adjacent scroll air blowing channels forms an equal difference array which is sequentially increased from the center to the outside, the air blowing quantity from the unit area outside the center of the scroll structure is gradually reduced, so that the central fluid is divided to the periphery, the auxiliary air blowing channel is arranged to enable the peripheral fluid of the scroll structure to flow along the circumferential direction and the radial direction of the brick core body, the defect that the scroll structure is always blown upwards is overcome, the air blowing structure of the scroll structure composite auxiliary air blowing channel can not only push the fluid to roll upwards, but also form the central fluid to be divided gradually to the periphery, the radial disturbance and the circumferential flow of the fluid near the periphery, the tiny stirring dead zone is thoroughly eliminated, and the better stirring and purifying effect is achieved.
4. Because the orientation of the blowing direction of the auxiliary ventilation channel is opposite to the vortex direction of the scroll structure, annular fluid opposite to the vortex direction of the scroll structure can be formed, so that the phenomenon that gas blown out from the scroll structure forms 'stable vortex carrying impurities' is eliminated, the fluid stirring and purifying effect is enhanced, and the fluid stirring and purifying efficiency is higher.
5. The auxiliary ventilating channel is arranged at the upper part of the brick core body, so that the length of the ventilating channel in the brick core body can be effectively reduced while higher ventilating amount is ensured, the problems of strength reduction and the like of the brick core body caused by the fact that a gas channel is arranged in the brick core body too long are avoided, and the service life of the fluid stirring and purifying element is prolonged; in addition, the cross sectional area of the scroll structure is gradually reduced from bottom to top, so that the cross sectional area of the ventilation channel of the scroll structure is also gradually reduced from bottom to top; under the condition of certain gas flow, the gas flow rate is larger closer to the upper end face of the brick core body, and the phenomenon of 'open hole' that a slag layer is pushed away appears on the surface of molten steel due to the too large gas flow rate, so that the purification of fluid is not facilitated; the utility model discloses set up the supplementary ventilative passageway of vortex opposite direction of the orientation of blowing and the passageway of blowing of scroll structure on the upper portion of brick core body, can realize the reposition of redundant personnel when the air velocity near brick core body up end increases to effectively reduce the gaseous velocity of flow in getting into the molten steel, both guaranteed that gas flow satisfies fluid stirring and purifies the requirement, improve and purify stirring efficiency, can avoid the molten steel "open a hole" phenomenon that the air velocity leads to too fast again.
Drawings
FIG. 1 is a front sectional view of a fluid-agitating purification element having a scroll structure according to embodiment 1 of the present invention;
FIG. 2 is a top sectional view of a fluid-agitating purification member having a scroll structure according to embodiment 1 of the present invention;
FIG. 3 is a top sectional view of a fluid-agitating purification element having a scroll structure according to embodiment 2 of the present invention;
fig. 4 is a schematic view of a position relationship between a scroll structure and an auxiliary ventilation channel in a fluid stirring purification element having a scroll structure according to embodiment 2 of the present invention;
FIG. 5 is an enlarged view at A in FIG. 3;
fig. 6 is a schematic diagram of the position of the auxiliary ventilation channel on the cross section of the brick core body of the fluid stirring purification element with the scroll structure in embodiment 2 of the present invention.
The reference numbers in the figures denote: 1-a brick core body; 2-scroll configuration; 3-a metal steel shell; 4-refractory mortar layer; 5-air chamber; 6-metal base plate; 7-bottom plate vent hole; 8-a metal tail pipe; 9-auxiliary ventilation channel; 10-brick core body cross section.
Detailed Description
Example 1
The fluid stirring and purifying element with the scroll structure of the present embodiment has a schematic structure as shown in fig. 1 and fig.
As shown in fig. 1 and 2, the fluid stirring purification element with a scroll structure of the present embodiment comprises a brick core body 1, a metal steel shell 3, a refractory mortar layer 4, a metal bottom plate 6 and a metal tail pipe 8; the brick core body 1 is internally provided with a scroll structure 2 which is an air blowing channel, and the scroll structure 2 is arranged along the length direction of the brick core body 1; on any cross section of the brick core body 1, the scroll structure 2 is of a plane scroll spring-shaped structure; the metal steel shell 3 is fixedly arranged on the outer wall surface of the brick core body 1 through a refractory mortar layer 4, the metal bottom plate 6 is positioned at the air inlet end of the brick core body 1 and is fixedly connected with the metal steel shell 3 on the side wall surface of the brick core body 1, and the metal tail pipe 8 is fixedly connected with the metal bottom plate 6; an air chamber 5 is arranged between the metal bottom plate 6 and the bottom wall of the brick core body 1, the fluid inlet end of the air chamber 5 is in fluid communication with the fluid outlet end of the metal tail pipe 8 through a bottom plate vent hole 7 formed in the metal bottom plate 6, and the fluid outlet end of the air chamber 5 is in fluid communication with the fluid inlet end of the scroll structure 2. Brick core body 1 still includes the brick core connector, and the both ends of brick core connector are fixed respectively on the inner wall of spiral structure 2. In this embodiment, the metal steel shell 3 is made of stainless steel, the metal bottom plate 6 is made of carbon steel, and the metal tail pipe 8 is made of heat-resistant and pressure-resistant steel pipe.
On any cross section of the brick core body 1, the ratio of the inner radius R1 and the outer radius R2 of the flat spiral spring-shaped structure to the length of the cross section radius R is 16: 110: 136; on any cross section of the brick core body 1, the number of spiral turns of the plane spiral spring-shaped structure is 4; the taper of the scroll structure 2 is equal to that of the brick core body 1; on any cross section of the brick core body 1, the pitches between two adjacent scroll blowing channels in the flat scroll spring-shaped structure are equal, and the pitch is 30 mm; on any cross section of the brick core body 1, the shortest distance between the scroll structure 2 and the outer vertical surface of the brick core body 1 is 26 mm; the width of the scroll structure 2 is 0.35 mm; the height of the air chamber 5 is 5 mm. In order to ensure that the interior strength of the brick body internal scroll structure 2 is not insufficient due to the air blowing channel, a brick core connecting body is arranged between the brick bodies on two sides of the scroll air blowing channel to connect and communicate the brick bodies on two sides. The cross section of the brick core connector is isosceles trapezoid, and the ratio of the total cross section area of the brick core connector to the expansion area of the scroll structure 2 is 1: 10; in other embodiments, the brick core connector may also be in other shapes with a cross section of regular triangle, ellipse, circle, etc., and the flat spiral structure is a structure capable of ensuring that the brick core body is an integral structure, so the brick core connector may not be provided.
In the fluid stirring purification element with the scroll structure of the present embodiment, the blowing channel is mostly communicated in the cross section of the brick core body 1, that is, the scroll structure 2 is communicated in the circumferential direction of the cross section in addition to being longitudinally communicated along the brick core body 1, that is, the scroll structure 2 is communicated in each direction in the slit layer. The scroll structure 2 is through the whole slit layer, the air flow can ventilate in the whole channel, even if the scroll structure 2 is partially blocked, the air flow can also bypass the blocking object to ventilate.
When in use, argon enters the gas chamber 5 through the metal tail pipe 8 and the bottom plate vent hole 7 on the metal bottom plate 6, and argon flow uniformly enters the scroll structure 2 after being buffered in the gas chamber 5 to a certain extent; the argon gas flow flows upwards in the scroll structure 2 along the longitudinal direction of the brick core body 1, enters external molten steel from the top of the brick core body 1, and plays a role in stirring and purifying the molten steel. The cross section of the scroll structure is provided with a flat scroll spring-shaped structure, so that when airflow flows into molten steel from bottom to top in the scroll structure, the airflow also forms the flat scroll spring-shaped structure, the spiral airflow drives the molten steel to flow after entering the molten steel, and the airflows of the flat scroll are connected together to generate mutual synergistic action, so that the molten steel is promoted to flow in the transverse direction, the molten steel flows in the longitudinal direction and in the transverse direction, and the molten steel is stirred and purified better.
If the scroll structure is replaced by the same number of concentric blowing passages, the fluid stirring and purifying effect is not as good as that of the present embodiment because: the concentric circles of the concentric circle air blowing channels are completely separated, and in order to ensure that the strength of the internal structure of the concentric circle air blowing channels can reach the embodiment, relatively more brick core connectors are needed, so that the air permeability is reduced; in addition, the flows flowing out from the circles of the concentric circles are independent from each other in the transverse direction, and the mutual interaction in the transverse direction of the molten steel is not easily generated because the mutual interaction is small, and thus the stirring and purifying effect is not good as that of the embodiment.
If the scroll structure is replaced by a concentric blowing channel with the same number of turns having a break point, the fluid stirring and purifying effect is not as good as that of the embodiment because: it is also difficult to produce a synergistic effect in the lateral direction between the air streams flowing out of the concentric circular blowing passages having the discontinuities in the respective circumferences, and therefore, when the air streams enter the molten steel, the air streams are substantially independent from each other in the lateral direction, and thus the stirring purification effect is inferior to that of the present embodiment.
The manufacturing process of the fluid stirring purification element with the scroll structure in the embodiment comprises the following steps:
(1) the scroll structure is made of a burnable material, and the burnable material is fixed in a mold according to different air-permeable channel structures and then is cast and molded.
(2) And after the brick core body is formed, drying, firing, sleeving a steel sleeve and welding to obtain a finished product package.
In the service process of the fluid stirring purification element with the scroll structure, if bricks between two adjacent blowing channels of the scroll structure 2 are stripped, the normal use of other parts cannot be influenced, the ventilation performance of the whole blowing channel cannot be influenced due to the fact that molten steel permeates into and blocks the local blowing channels, and the fluid stirring purification element has good thermal shock resistance, and can effectively reduce the probability of crossing and the influence of steel seepage on the ventilation performance of the local blowing channels; in addition, the central point that volute spiral structure 2 mainly concentrates on brick core body 1 in this embodiment puts, because be the setting of plane volute spiral spring column structure on its cross section, can guarantee that it has better ventilation effect under the prerequisite, the passageway of blowing is drawn close to the central part of brick core body as far as possible, make it when heat is repaiied and is burnt oxygen and sweep only need sweep brick body central part can, needn't clear up whole brick core face, thereby effectively reduce burning oxygen and sweep the intensity of labour of clearance time and workman, and then avoid because of burning oxygen and sweep the air brick loss that the clearance time overlength leads to too fast, prolong the life of fluid purification stirring component.
In other embodiments, on any cross section of the brick core body 1, the pitches between two adjacent scroll blowing channels in the flat scroll spring-shaped structure form an equal difference array which is increased in sequence from the center to the outside. Compared with the embodiment, the blowing channel with the scroll structure has smaller total volume under the condition that the minimum distance between the scroll structure and the outer vertical surface of the brick core body is unchanged and the number of scroll turns is the same; in order to ensure the same ventilation amount, the blowing channel adopting the scroll structure needs to increase the number of scroll turns or reduce the minimum distance between the scroll structure and the outer vertical surface of the brick core body, so that the minimum distance between the same cross section and the outer vertical surface of the brick core body 1 is smaller than that of the embodiment, compared with the embodiment, the outermost circle of the blowing channel of the scroll structure is farther away from the center position of the brick core body, namely the blowing channel of the scroll structure is more dispersed; therefore, when the brick core is cleaned by oxygen burning and blowing, the area of the brick core surface to be cleaned is larger than that of the brick core surface in the embodiment, and the reduction of the cleaning time of oxygen burning and blowing and the labor intensity of workers are not facilitated;
or, on any cross section of the brick core body 1, the pitches between two adjacent scroll blowing channels in the flat scroll spring-shaped structure form an equal difference array which is reduced in sequence from the center to the outside. Under the condition that the minimum distance between the scroll structure and the outer vertical surface of the brick core body is unchanged and the number of scrolls is the same, compared with the embodiment, the air blowing channel with the scroll structure has larger total volume, so that on the premise of ensuring the same air permeability, the minimum distance between the air blowing channel with the scroll structure and the outer vertical surface of the brick core body 1 on the same cross section is larger than that of the embodiment, and compared with the embodiment, the outermost circle of air blowing channel with the scroll structure is closer to and concentrated at the central position of the brick core body; therefore, when oxygen burning and cleaning are carried out, the area of the brick core surface needing to be cleaned is smaller than that of the brick core surface, and the reduction of the oxygen burning and cleaning time and the labor intensity of workers are facilitated.
Example 2
The fluid stirring and purifying element with a scroll structure in the present embodiment is formed by adding an auxiliary ventilation channel to the fluid stirring and purifying element of embodiment 1, as shown in fig. 3.
The first end of the auxiliary ventilation channel 9 is in fluid communication with the outermost blowing channel of the scroll structure 2, and the second end opening of the auxiliary ventilation channel 9 is positioned on the upper end surface of the brick core body 1 between the outermost blowing channel of the scroll structure 2 and the outer vertical surface of the brick core body 1; the height of the brick core body 1 where the auxiliary ventilation channel 9 is located is 1/10 of the whole height of the brick core body 1; the ratio of the total ventilation area of the auxiliary ventilation channel to the total blowing area of the scroll structure is 1: 10; the cross section of the auxiliary ventilation channel 9 is a rectangle with the width of 0.10 mm.
As shown in fig. 3 and 4, the second end openings of all the auxiliary ventilation channels 9 are all equal in distance to the outer vertical surface of the brick core body 1; as shown in fig. 6, an included angle α between a central axis X of the auxiliary ventilation channel 9 and the cross section 10 of the brick core body is 30 °; as shown in fig. 5, on the scroll structure 2: and recording a tangent line taking the intersection point of the central axis X of the auxiliary ventilation channel 9 and the scroll structure 2 as a tangent point as a tangent line Y, wherein the included angle beta between the central axis X and the tangent line Y is 30-60 degrees, and the blowing direction of the auxiliary ventilation channel 9 is opposite to the scroll direction of the scroll structure 2.
Compared with the structure of the embodiment 1, the structure of the embodiment has better fluid stirring effect and service life. This is because: the auxiliary ventilation channel is equal to 1/10 of brick core body height at the axial projection length of brick core body, and blow the passageway fluid and switch on with the outermost circle of scroll structure, when the passageway width of blowing is certain, the volume of blowing from the outside unit area in scroll structure center reduces gradually, make central fluid to shunt all around, auxiliary ventilation channel's setting makes the peripheral fluid of scroll structure can follow brick core body circumference and radial flow, compensate the not enough of the straight blow that makes progress all the time of scroll structure, the structure of blowing of the compound auxiliary ventilation channel of scroll structure except that promotes the fluid and upwards rolls, can also form central fluid and shunt gradually all around, peripheral near fluid radial disturbance and circumferential flow, thoroughly eliminate small stirring blind spot, reach better stirring purifying effect.
In addition, because the direction of the blowing direction of the auxiliary ventilation channel is opposite to the vortex direction of the scroll structure, annular fluid opposite to the vortex direction of the scroll structure can be formed, so that the phenomenon that stable vortex carrying impurities is formed by gas blown out from the scroll structure is eliminated, the fluid stirring and purifying effect is enhanced, and the fluid stirring and purifying efficiency is higher. In the embodiment, the auxiliary ventilation channel is arranged at the upper part of the brick core body, so that the problems of strength reduction and the like of the brick core body caused by too many gas channels arranged in the brick core body can be avoided while higher ventilation quantity is ensured, and the service life of the fluid stirring and purifying element is prolonged; in addition, the cross sectional area of the scroll structure is gradually reduced from bottom to top, so that the cross sectional area of the ventilation channel of the scroll structure is also gradually reduced from bottom to top; under the condition of certain gas flow, the gas flow rate is larger closer to the upper end face of the brick core body, and the phenomenon of 'open hole' that a slag layer is pushed away appears on the surface of molten steel due to the too large gas flow rate, so that the purification of fluid is not facilitated; the utility model discloses set up the supplementary ventilative passageway of vortex opposite direction of the orientation of blowing and the passageway of blowing of scroll structure on the upper portion of brick core body, can realize the reposition of redundant personnel when increasing the air velocity that is close to brick core body up end to effectively reduce the gaseous velocity of flow in getting into the molten steel, both guaranteed that gas flow satisfies fluid stirring and purifies the requirement, improve and purify stirring efficiency, can avoid the molten steel "open a hole" phenomenon that the air velocity leads to too fast again.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (10)
1. A fluid stirring and purifying element with a scroll structure comprises a brick core body (1), and is characterized in that the brick core body (1) is internally provided with the scroll structure (2) which is an air blowing channel, and the scroll structure (2) is arranged along the length direction of the brick core body (1); on any cross section of the brick core body (1), the scroll structure (2) is of a plane scroll spring-shaped structure.
2. The fluid stirring purification element with scroll structure as claimed in claim 1, wherein, on any cross section of the brick core body (1), the ratio of the inner radius R1, the outer radius R2 of the plane scroll spring-like structure and the length of the cross section radius R is (10-30): (15-100): (25-120).
3. The fluid stirring purification element with scroll structure as claimed in claim 1, wherein the pitch between two adjacent scroll blowing channels in the flat scroll spring structure is 15-35 mm on any cross section of the brick core body (1).
4. The fluid-agitating purification element with a scroll structure as recited in claim 3, wherein the pitch between two adjacent scroll blowing passages in the flat scroll spring-like structure is equal.
5. The fluid stirring purification element with scroll structure as claimed in claim 3, wherein, on any cross section of the brick core body (1), the pitch between two adjacent scroll blowing channels in the flat scroll spring structure form an equal difference series which is increased from the center to the outside.
6. The fluid stirring purification element with scroll structure as claimed in claim 3, wherein, on any cross section of the brick core body (1), the pitch between two adjacent scroll air blowing channels in the flat scroll spring structure form an equal difference array which is reduced from the center to the outside.
7. The fluid stirring purification element with scroll structure as claimed in any one of claims 1 to 6, characterized in that, on any cross section of the brick core body (1), the shortest distance between the scroll structure (2) and the outer vertical surface of the brick core body (1) is 20 to 40 mm; the width of the scroll structure (2) is 0.10-0.35 mm; on any cross section of the brick core body (1), the number of spiral turns of the flat spiral spring-shaped structure is 2-5; the taper of the scroll structure (2) is equal to that of the brick core body (1).
8. The fluid stirring purification element with scroll structure as claimed in claim 7, wherein an auxiliary ventilation channel (9) is further provided in the brick core body (1), a first end of the auxiliary ventilation channel (9) is in fluid communication with the outermost circumference of the scroll structure (2) blowing channel, and a second end opening of the auxiliary ventilation channel (9) is located on the upper end face of the brick core body (1) between the outermost circumference of the scroll structure (2) blowing channel and the outer vertical face of the brick core body (1); the height of the brick core body (1) where the auxiliary ventilation channel (9) is located is 1/8-1/10 of the whole height of the brick core body (1); the ratio of the total ventilation area of the auxiliary ventilation channel (9) to the total blowing area of the scroll structure is (1-2): 10; the cross section of the auxiliary ventilation channel (9) is a rectangle with the width of 0.10-0.35 mm.
9. The fluid agitation purification element with scroll structure as claimed in claim 8, wherein the second end openings of all said auxiliary gas permeation channels (9) are equally distant from the outer vertical surface of said brick core body (1); an included angle alpha between the central axis X of the auxiliary ventilation channel (9) and the cross section (10) of the brick core body is 15-60 degrees; -on said scroll structure (2): and recording a tangent line taking the intersection point of the central axis X of the auxiliary ventilation channel (9) and the scroll structure (2) as a tangent point as a tangent line Y, wherein the included angle beta of the central axis X and the tangent line Y is 30-60 degrees, and the direction of the blowing direction of the auxiliary ventilation channel (9) is opposite to the scroll direction of the scroll structure (2).
10. The fluid stirring purification element with scroll structure as claimed in claim 1, further comprising a metal steel shell (3), a refractory mortar layer (4), a metal bottom plate (6) and a metal tail pipe (8); the metal steel shell (3) is fixedly installed on the outer wall surface of the brick core body (1) through the refractory mortar layer (4), the metal bottom plate (6) is located at the air inlet end of the brick core body (1) and is fixedly connected with the metal steel shell (3) on the side wall surface of the brick core body (1), and the metal tail pipe (8) is fixedly connected with the metal bottom plate (6); an air chamber (5) is arranged between the metal bottom plate (6) and the bottom wall of the brick core body (1), a fluid inlet end of the air chamber (5) is in fluid communication with a fluid outlet end of the metal tail pipe (8) through a bottom plate vent hole (7) formed in the metal bottom plate (6), and a fluid outlet end of the air chamber (5) is in fluid communication with a fluid inlet end of the scroll structure (2);
the brick core body (1) further comprises a brick core connecting body, and two ends of the brick core connecting body are respectively fixed on the inner wall of the scroll structure (2); the ratio of the total cross-sectional area of the brick core connecting body to the expansion area of the scroll structure (2) is (1:5) - (1: 10); the cross section of the brick core connector is isosceles trapezoid, regular triangle, oval or round; the height of the air chamber (5) is 5 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220033958.0U CN216473314U (en) | 2022-01-07 | 2022-01-07 | Fluid stirring purification element with scroll structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220033958.0U CN216473314U (en) | 2022-01-07 | 2022-01-07 | Fluid stirring purification element with scroll structure |
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| CN216473314U true CN216473314U (en) | 2022-05-10 |
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| CN202220033958.0U Active CN216473314U (en) | 2022-01-07 | 2022-01-07 | Fluid stirring purification element with scroll structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367653A (en) * | 2022-01-07 | 2022-04-19 | 濮阳濮耐高温材料（集团）股份有限公司 | Fluid stirring purification element with scroll structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367653A (en) * | 2022-01-07 | 2022-04-19 | 濮阳濮耐高温材料（集团）股份有限公司 | Fluid stirring purification element with scroll structure |
| CN114367653B (en) * | 2022-01-07 | 2024-03-29 | 濮阳濮耐高温材料（集团）股份有限公司 | Fluid stirring purifying element with scroll structure |
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