CN211386824U - High-efficiency combined crystallizer - Google Patents

Abstract

The utility model discloses a high-efficiency combined crystallizer, which comprises a crystallizer inner cavity and a cooling water tank fixed outside the crystallizer inner cavity, wherein the crystallizer inner cavity is formed by combining an outer arc copper plate, an inner arc copper plate and two symmetrical narrow-surface copper plates, one narrow-surface copper plate is fixedly connected between one side of the outer arc copper plate and one side of the inner arc copper plate, and the other narrow-surface copper plate is fixedly connected between the other side of the outer arc copper plate and the other side of the inner arc copper plate; the cooling water tank comprises an outer arc water tank fixedly assembled outside the outer arc copper plate, an inner arc water tank fixedly assembled outside the inner arc copper plate and two narrow-face water tanks outside the two narrow-face copper plates fixedly assembled respectively. The utility model discloses can improve the cooling efficiency and the cooling homogeneity of crystallizer.

Description

High-efficiency combined crystallizer

Technical Field

The utility model belongs to the technical field of conticaster for the steelmaking, especially, relate to a high-efficient combination formula crystallizer.

Background

The crystallizer is the heart of a continuous casting machine, the structural design of the crystallizer can directly influence the casting blank drawing speed and the casting blank quality, and the crystallizer is a key technology in modern steelmaking continuous casting production.

In the prior art, the crystallizer comprises a tubular crystallizer (mainly used for square billets, round billets and rectangular billets) and a combined crystallizer (mainly used for rectangular billets, large square billets and slabs).

The defects of the prior art are mainly reflected in the cooling mode of the crystallizer and the design parameters of the inner cavity of the crystallizer. The specific defects are as follows:

1. the tubular crystallizer is divided into a water jacket and copper pipe assembled type, a spray type, a copper pipe cold surface slotted type and a copper pipe longitudinal drilling type, and each defect is as follows:

(1) the defects of the crystallizer with the assembled water jacket and copper pipe are as follows: the copper pipe is weak in fixation, cannot be supported powerfully, is easy to deform under the action of thermal stress and ferrostatic pressure, and the taper of an inner cavity is easy to change. The taper is increased, the throwing resistance is increased, and a crystallizer copper pipe is damaged. The taper is reduced or is negative, the air gap between the steel billet and the copper wall is increased, the heat conduction efficiency is reduced, and the steel leakage accident can be caused; secondly, the water gap structure of the copper pipe and the water jacket limits the flow rate and the cooling uniformity of cooling water, the cooling water on a cold surface is easy to boil intermittently at a high drawing speed, the cooling effect is influenced, the effective blank shell thickness of a steel billet out of a crystallizer cannot be achieved, and steel leakage accidents can be caused; the structure limits the cooling uniformity, and the corner is subjected to two-dimensional heat conduction, so that the corner is easily cooled excessively, and the corner cracks and other defects are generated.

(2) The defects of the spray type crystallizer are as follows: the structure cancels a water jacket and a water gap structure, adopts spray cooling, but also cannot obtain powerful support, is easy to deform under the action of thermal stress and ferrostatic pressure, and the taper of an inner cavity is easy to change. The taper is increased, the throwing resistance is increased, and a crystallizer copper pipe is damaged. The taper is reduced or is negative, the air gap between the steel billet and the copper wall is increased, the heat conduction efficiency is reduced, and the steel leakage accident can be caused; secondly, the structure is uniformly cooled, but the cooling efficiency is low, and the cooling effect required by high drawing speed cannot be achieved;

(3) the copper pipe cold surface grooved crystallizer has the following defects: the grooving of the cold surface of the copper pipe is to increase the cooling area and improve the cooling effect, but the deformation resistance of the copper pipe is reduced. Secondly, the cold surface grooved copper pipe has higher price than the common copper pipe, is also disposable, can not be repaired and used for many times, and increases the production cost. And thirdly, after the cold surface is grooved, although the cooling area is increased, the flow speed and the flow of cooling water are improved, the uniformity of the cooling water quantity of the four surfaces is still not solved.

(4) The defects of the copper pipe or the copper plate longitudinal drilling type crystallizer are as follows: firstly, the number of the copper pipes is large, the copper pipes are manufactured by drilling and then extrusion molding, the drilling depth is large, the manufacturing cost is high, and the drilling precision is difficult to guarantee; secondly, due to the limitation of the arrangement of the cooling holes, the cooling device can be used only once and cannot be repaired and used for many times, so that the resource waste is caused, and the production cost is increased; and thirdly, the longitudinal drilling holes of the copper plate are mainly applied to the straight-face copper plate, so that the cost is relatively high. The longitudinal drilling of the cambered surface copper plate can hardly be realized, or the manufacturing process is relatively complex, and the manufacturing cost is very high.

2. The combined crystallizer is divided into a square billet crystallizer, a rectangular billet crystallizer, a special-shaped billet crystallizer and a plate blank crystallizer, because the utility model discloses do not relate to special-shaped billet and plate blank crystallizer, so only analyze the defect of the square billet and rectangular billet combined crystallizer here:

(1) the defects of the square billet combined crystallizer and the rectangular billet combined crystallizer are approximately the same, the cold surfaces of the square billet combined crystallizer and the rectangular billet combined crystallizer are designed in a plane, and the main defects are as follows: firstly, the copper plate has high material consumption, particularly the thickness of the crystallizer with radian is generally more than 40 mm; secondly, the cold surface water tank is high in processing difficulty and low in precision, because the water tank needs to be processed to be consistent with the distance between the cold surface water tank and the hot surface water tank in order to achieve the uniform cooling effect, a lot of difficulties are brought to processing, and the processing cost is increased; due to the adoption of a combined copper plate structure, bolt holes are required to be added for fixing, and the machining space of the bolt holes is reserved for the cold surface of the copper plate generally, so that two or more rows of water-free areas are formed in the cold surface, water channels of the cold surface are not uniformly distributed, and the cooling uniformity of the crystallizer is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improve the high-efficient combination formula crystallizer of the cooling efficiency and the cooling homogeneity of crystallizer.

In order to achieve the above technical objective, the utility model discloses the technical scheme who takes is:

a high-efficiency combined crystallizer comprises a crystallizer inner cavity and a cooling water tank fixed outside the crystallizer inner cavity, wherein the crystallizer inner cavity is formed by combining an outer arc copper plate, an inner arc copper plate and two symmetrical narrow-face copper plates, one narrow-face copper plate is fixedly connected between one side of the outer arc copper plate and one side of the inner arc copper plate, and the other narrow-face copper plate is fixedly connected between the other opposite side of the outer arc copper plate and the other opposite side of the inner arc copper plate;

the cooling water tank comprises an outer arc water tank fixedly assembled outside the outer arc copper plate, an inner arc water tank fixedly assembled outside the inner arc copper plate and two narrow-face water tanks outside the two narrow-face copper plates fixedly assembled respectively.

Further, outer arc copper and interior arc copper are whole arc design, and its cold side and hot side are the arcwall face, are different from traditional crystallizer copper hot side for the arc and cold side be planar design, and the design can reduce the copper product consumption by a wide margin, and reduction in production cost can also effectively improve the cooling strength and the homogeneity of interior outer arc.

Further, cold surface water grooves are formed in cold surfaces of the outer arc copper plate and the inner arc copper plate; the depth of the cold surface water tank is processed along with the cambered surface, so that the distance from the bottom surface of the cold surface water tank to the hot surface is the same, and the cooling area is the same. The bottom surface of a cooling water tank of the existing crystallizer copper plate is planar and also has an arc shape parallel to a hot surface, and the two have defects respectively. The bottom surface is planar, and the distance between the bottom surface of the water tank and the hot surface changes along with the change of the arc shape of the hot surface, so that the distance between the bottom surface of the water tank and the hot surface is inconsistent, and uneven cooling is caused. The bottom surface is the cambered surface that is on a parallel with the hot side, and although the distance from the bottom surface of the water tank to the hot side is consistent, because the cold side is a plane, the depth of the water tank can be changed along with the change of the cambered hot side, so the cooling cross-sectional areas at different positions are different, and finally the inner and outer arc copper plates are cooled unevenly. The depth of the cold surface water tank of the inner and outer arc copper plates is processed along with the cambered surface, the hot surface is almost parallel to the cold surface, the depth of the water tank is relatively consistent, and the distance from the bottom surface of the water tank to the hot surface and the cooling area are basically the same at different positions, so that the longitudinal cooling strength of the copper plates is the same, the cooling uniformity is realized, and necessary conditions are provided for high-pulling-speed production.

Furthermore, the cold surface of the two narrow-surface copper plates is provided with a cooling water tank, and the cooling water tank is processed into an arc parallel to the two side edges of the narrow-surface copper plates. The design is favorable for the uniform distribution of cooling water tanks on the cross sections of different positions of the narrow-face copper plate, and the cooling uniformity of the narrow-face copper plate is realized.

Furthermore, a plurality of rows of bolt holes are longitudinally arranged on the outer arc copper plate, the inner arc copper plate and the narrow-surface copper plate, the bolt holes are semi-ring island bolt holes, and cooling water tanks or cold-surface water tanks are distributed on two sides of the bolt holes. The bolt hole parts adopt the semi-ring island design, so that the uniform distribution of water tanks is ensured, the uniformity of transverse cooling can be effectively improved, the quality of casting blanks is improved, and the influence on the cooling uniformity caused by different distances of cooling water tanks due to the arrangement of the bolt holes is avoided;

furthermore, the corner of the narrow-surface copper plate is provided with an arc angle, the arc angle is a small arc angle with the radius of 3-10mm, and the combined crystallizer is different from the combined crystallizer which does not have an arc angle or is designed to be a large chamfer angle, so that corner cracks generated by casting blanks due to two-dimensional heat conduction of the corner can be avoided, and the cooling strength is high.

Furthermore, three contact surfaces are processed on the adjacent edges of the outer arc copper plate and the narrow-surface copper plate and the adjacent edges of the inner arc copper plate and the narrow-surface copper plate, and the three contact surfaces are mutually butted for accurate positioning during assembly.

Further, the contact surface of the outer arc water tank and the outer arc copper plate is an arc surface with the same radian as the cold surface of the outer arc copper plate;

the contact surface of the inner arc water tank and the inner arc copper plate is an arc surface with the same radian as the cold surface of the inner arc copper plate.

The contact surface of the inner arc water tank and the outer arc water tank assembled with the copper plate is designed into a corresponding arc surface, and seamless assembly is carried out on the contact surface and the corresponding copper plate.

Further, an outer arc water outlet and an outer arc water inlet are formed in the outer arc water tank, an inner arc water inlet and an inner arc water outlet are formed in the inner arc water tank, and each narrow-face water tank is provided with a narrow-face water outlet and a narrow-face water inlet. The water outlet and the water inlet are both connected with the crystallizer frame by stainless steel corrugated pipes, and different from the free inflow of cooling water on four surfaces of the tubular crystallizer, the flow rate and the flow velocity of the cooling water on each surface cannot be controlled. The design can independently control the four surfaces at a fixed quantitative speed, so that the uniform cooling effect of the four surfaces is realized, and a stable condition is created for high drawing speed.

Furthermore, the outer arc water tank, the inner arc water tank and the narrow-face water tank are assembled through water tank assembling and positioning faces, and the water tank assembling and positioning faces comprise narrow-face water tank assembling and positioning faces which are respectively fixed on two sides of the outer arc water tank and two sides of the inner arc water tank and inner and outer arc water tank assembling and positioning faces which are fixed on two sides of the narrow-face water tank;

the assembling and positioning surface of the narrow-surface water tank is matched with the assembling and positioning surface of the inner arc water tank and the outer arc water tank.

Compared with the prior art, the utility model discloses the beneficial effect who gains as follows:

1. the strength is improved: the structure is a copper plate combined structure and is formed by combining four copper plates and four corresponding water tanks. The integral strength after the assembly is far higher than that of a tubular crystallizer, so that the influence of the static pressure and the thermal stress of molten steel on the crystallizer can be completely overcome;

2. any lumen parameter can be realized: the copper plate combination type is adopted, four sides are processed independently during processing, a numerical control processing center is utilized, accurate processing of any inverted taper and any arc angle can be achieved, and processing precision can be controlled within 0.02 mm. Therefore, the precision of the crystallizer can completely meet the use requirement;

3. the cooling effect is greatly optimized: the four-side copper plate of the combined crystallizer adopts an independent cooling structure, and the cooling water flow of the four sides can be independently controlled, so that the integral uniformity of the crystallizer cooling is ensured. The cooling water tanks are uniformly arranged on the cold surface of the copper plate, so that the flow of cooling water can be greatly improved, the cooling effect is improved, the cooling uniformity of the cross section of the copper plate of the crystallizer is realized, and the necessary condition of high pulling speed is achieved.

4. The quality of the plating layer is optimized, and the steel passing amount is improved: the effect is mainly superior to that of a tubular crystallizer which is formed by extrusion, the inner cavity of a copper tube of the formed crystallizer limits a plating layer, only chromium can be electroplated to be used as a wear-resistant layer, even if a nickel-chromium composite layer is tried at present, the effect is not obvious, and the effect of improving the steel passing amount is limited. The combined crystallizer copper plate can realize various coatings like a slab crystallizer copper plate, can avoid a high-temperature area according to the solidification and abrasion conditions of steel billets, plate nickel-cobalt alloy with reasonable thickness on the abrasion serious part above the lower opening of the crystallizer, and plate a chromium coating on the whole hot surface of the copper plate after the nickel-cobalt coating is subjected to finish machining. Thus, the heat transfer performance is not influenced, and the steel passing amount is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic cross-sectional view of an assembly of an embodiment of the present invention;

FIG. 2 is a front schematic view of the assembly of the present invention;

FIG. 3 is a side view of the assembly of the present invention;

fig. 4 is a schematic front view of an outer arc copper plate according to an embodiment of the present invention;

fig. 5 is a schematic top view of an outer arc copper plate according to an embodiment of the present invention;

fig. 6 is a schematic side view of an outer arc copper plate according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of section I of FIG. 4;

fig. 8 is a schematic top view of an inner-arc copper plate according to an embodiment of the present invention;

fig. 9 is a schematic front view of a narrow-faced copper plate according to an embodiment of the present invention;

fig. 10 is a schematic side view of a narrow-faced copper plate according to an embodiment of the present invention;

FIG. 11 is a schematic side view of an outer arc water tank in an embodiment of the present invention;

FIG. 12 is a schematic view of the inner surface of an arc-shaped water tank according to an embodiment of the present invention;

FIG. 13 is a schematic side view of an inner arc water tank according to an embodiment of the present invention;

fig. 14 is a schematic side view of a narrow-sided water tank according to an embodiment of the present invention;

fig. 15 is a schematic view of the inner surface of a narrow-side water tank according to an embodiment of the present invention;

fig. 16 is a schematic view of a conventional bolt hole arrangement.

Wherein: 11 outer arc copper plates, 12 inner arc copper plates, 13 narrow-face copper plates, 14 outer arc water tanks, 15 inner arc water tanks, 16 narrow-face water tanks, 20 semi-ring island bolt holes, 21 cooling water tanks, 31 outer arc water outlets, 32 outer arc water inlets, 33 narrow-face water tank assembling and positioning surfaces, 34 narrow-face water outlets, 35 narrow-face water inlets, 36 narrow-face water tank assembling and positioning surfaces, 37 water tank assembling and positioning surfaces, 38 inner arc water inlets and 39 inner arc water outlets.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the embodiments described in the figures are only some embodiments of the present application, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it is also to be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship 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 device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1-15, a high-efficiency combined crystallizer comprises a crystallizer inner cavity and a cooling water tank fixed outside the crystallizer inner cavity, wherein the crystallizer inner cavity is a combined square-billet or rectangular-billet crystallizer formed by combining and assembling an outer arc copper plate 11, an inner arc copper plate 12 and two symmetrical narrow-face copper plates 13, one narrow-face copper plate is fixedly connected between one side of the outer arc copper plate 11 and one side of the inner arc copper plate 12, and the other narrow-face copper plate is fixedly connected between the other opposite side of the outer arc copper plate 11 and the other opposite side of the inner arc copper plate 12;

the cooling water tank comprises an outer arc water tank 14 fixedly assembled outside the outer arc copper plate, an inner arc water tank 15 fixedly assembled outside the inner arc copper plate and two narrow surface water tanks 16 respectively fixedly assembled outside the two narrow surface copper plates 13.

The cold surface and the hot surface of the outer arc copper plate 11 and the inner arc copper plate 12 are both arc surfaces.

Further, cold surface water tanks 21 are arranged on cold surfaces of the outer arc copper plate 11 and the inner arc copper plate 12; the depth of the cold water tank 21 is processed along with the arc surface, so that the distances from the bottom surface to the hot surface of the cold water tank 21 are the same and the cooling area is the same.

Furthermore, the cold surface of the two narrow-surface copper plates 13 is provided with a cooling water tank, and the cooling water tank is processed into an arc shape parallel to the two side edges of the narrow-surface copper plates.

Furthermore, a plurality of rows of bolt holes are longitudinally arranged on the outer arc copper plate 11, the inner arc copper plate 12 and the narrow-face copper plate 13, and the bolt holes are all peninsula bolt holes 20.

In the existing bolt hole arrangement method, the distance between the water tanks on two sides of the bolt hole is larger than the distance between two adjacent water tanks, and enough arrangement space is reserved for the bolt hole, as shown in fig. 16. The arrangement method can cause that the intervals of water tanks at the two sides of the bolt holes are different from those of other water tanks, the water tanks are not uniformly distributed, and the cooling uniformity is influenced; the bolt hole position adopts the design of semi-ring island, and bolt hole department basin semi-ring continues to extend after walking around the bolt hole, keeps the uniformity of adjacent basin interval, has guaranteed the evenly distributed of basin, can effectively improve lateral cooling's homogeneity, improves the casting blank quality, has avoided leading to the interval difference of cooling trough because of arranging of bolt hole, influences the cooling homogeneity.

Further, the corner of the narrow-surface copper plate 13 is provided with an arc angle, and the arc angle is a small arc angle with a radius of 3-10 mm.

Furthermore, three contact surfaces are processed on the adjacent edges of the outer arc copper plate 11 and the narrow-surface copper plate 13 and the adjacent edges of the inner arc copper plate 12 and the narrow-surface copper plate 13, and the three contact surfaces are mutually butted for positioning during assembly.

Further, the contact surface of the outer arc water tank 14 and the outer arc copper plate 11 is an arc surface with the same radian as the cold surface of the outer arc copper plate 11;

the contact surface of the inner arc water tank 15 and the inner arc copper plate 12 is an arc surface with the same radian as the cold surface of the inner arc copper plate 12.

Further, an outer arc water outlet 31 and an outer arc water inlet 32 are arranged on the outer arc water tank 14, an inner arc water inlet 38 and an inner arc water outlet 39 are arranged on the inner arc water tank 15, and a narrow surface water outlet 34 and a narrow surface water inlet 35 are arranged on each narrow surface water tank 16.

Further, the outer arc water tank 14, the inner arc water tank 15 and the narrow surface water tank 16 are assembled through water tank assembling and positioning surfaces 37, and the water tank assembling and positioning surfaces 37 comprise narrow surface water tank assembling and positioning surfaces 33 fixed on two sides of the outer arc water tank 14 and two sides of the inner arc water tank 15 respectively, and inner and outer arc water tank assembling and positioning surfaces 36 fixed on two sides of the narrow surface water tank 16;

the narrow-face water tank assembling and positioning surface 33 is matched with the inner arc water tank assembling and positioning surface 36 and the outer arc water tank assembling and positioning surface.

The concrete assembly mode and the process of each part are as follows:

firstly, an arc copper plate (shown in figures 4-7) and an outer arc water tank (shown in figure 11) are assembled together in a bolt fixing mode, wherein bolt holes of the outer arc copper plate are arranged in a semi-ring island mode between two water tanks, and as shown in figures 4-7, the purpose of uniformly distributing the water tanks under the condition that the bolt holes are formed is achieved. The cold surface of the outer arc copper plate and the copper plate mounting surface of the outer arc water tank are seamlessly combined by the cambered surfaces R (a + b) with the same size, and are sealed by adopting rubber strips. The surfaces a, b and c of the outer arc copper plate are respectively matched and assembled with the surfaces a, b and c of the outer arc water tank and used for positioning the outer arc copper plate.

Secondly, the inner arc copper plate (shown in figure 8) and the inner arc water tank (shown in figure 13) are assembled together in a bolt fixing mode, wherein bolt holes of the inner arc copper plate are arranged in a semi-ring island mode between the two water tanks, and as shown in figure 8, the purpose of uniformly distributing the water tanks under the condition that the bolt holes are formed is achieved. The cold surface of the inner arc copper plate and the copper plate mounting surface of the inner arc water tank are seamlessly combined by the cambered surfaces R (a-b) with the same size, and are sealed by adopting rubber strips. The surfaces a, b and c of the inner arc copper plate are respectively matched and assembled with the surfaces a, b and c of the inner arc water tank for positioning the inner arc copper plate.

And thirdly, the narrow-face copper plate (shown in figures 9-10) and the narrow-face water tank (shown in figures 14-15) are assembled together in a bolt fixing mode, wherein bolt holes of the narrow-face copper plate are arranged in a semi-ring island mode between the two water tanks, and the purpose of uniformly distributing the water tanks under the condition that the bolt holes are formed is achieved, as shown in figures 11-12. The cold surface of the narrow-surface copper plate and the copper plate mounting surface of the narrow-surface water tank are seamlessly combined in a plane and are sealed by adopting a rubber strip. And the surfaces a, b and c of the narrow-face copper plate are respectively matched and assembled with the surfaces a, b and c of the narrow-face water tank and used for positioning the narrow-face copper plate.

And fourthly, integrally assembling (as shown in figures 2-3), wherein the inner and outer arc copper plates and the two narrow-face copper plates are integrally assembled with the water tank after being assembled, and the four copper plates are assembled and positioned by means of 4 positioning surfaces respectively at the upper and lower parts during assembly, so that the upper and lower openings of the four copper plates are prevented from being dislocated. And the inner and outer arc copper plate corner surfaces 1, 2 and 3 are respectively and accurately positioned with the surfaces 1, 2 and 3 of the narrow-surface copper plate to form the required inner cavity size. And finally, assembling the copper plates on the four surfaces by using a plurality of bolts at the four corners, and extruding, fastening, assembling and molding the copper plates.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a high-efficient combination formula crystallizer, includes crystallizer inner chamber and is fixed in the outside cooling water tank of crystallizer inner chamber, its characterized in that: the inner cavity of the crystallizer is formed by combining an outer arc copper plate (11), an inner arc copper plate (12) and two symmetrical narrow-face copper plates (13), one narrow-face copper plate is fixedly connected between one side of the outer arc copper plate (11) and one side of the inner arc copper plate (12), and the other narrow-face copper plate is fixedly connected between the other opposite side of the outer arc copper plate (11) and the other opposite side of the inner arc copper plate (12);

the cooling water tank comprises an outer arc water tank (14) fixedly assembled outside the outer arc copper plate, an inner arc water tank (15) fixedly assembled outside the inner arc copper plate and two narrow surface water tanks (16) outside the two narrow surface copper plates (13) which are fixedly assembled respectively.

2. The high-efficiency combined crystallizer of claim 1, wherein: and the cold surface and the hot surface of the outer arc copper plate (11) and the inner arc copper plate (12) are arc surfaces.

3. A high efficiency modular crystallizer as defined in claim 2, wherein: cold surface water grooves (21) are arranged on the cold surfaces of the outer arc copper plate (11) and the inner arc copper plate (12); the distances from the bottom surface of the cold surface water tank (21) to the hot surface are the same, and the cooling areas are the same.

4. A high efficiency modular crystallizer as defined in claim 3, wherein: and the cold surfaces of the two narrow-surface copper plates (13) are provided with cooling water tanks, and the cooling water tanks are arc-shaped and parallel to the two side edges of the narrow-surface copper plates.

5. The high-efficiency combined crystallizer of claim 4, wherein: and a plurality of rows of bolt holes are longitudinally arranged on the outer arc copper plate (11), the inner arc copper plate (12) and the narrow-face copper plate (13), and the bolt holes are semi-ring island bolt holes (20).

6. The high-efficiency combined crystallizer of claim 5, wherein: and the corner of the narrow-face copper plate (13) is provided with an arc angle, and the arc angle is an arc angle with the radius of 3-10 mm.

7. The high-efficiency combined crystallizer of claim 6, wherein: the adjacent edges of the outer arc copper plate (11) and the narrow-face copper plate (13) and the adjacent edges of the inner arc copper plate (12) and the narrow-face copper plate (13) are respectively provided with three contact surfaces, and the three contact surfaces are mutually butted for positioning during assembly.

8. The high-efficiency combined crystallizer of claim 7, wherein: the contact surface of the outer arc water tank (14) and the outer arc copper plate (11) is an arc surface with the same radian as the cold surface of the outer arc copper plate (11);

the contact surface of the inner arc water tank (15) and the inner arc copper plate (12) is an arc surface with the same radian as the cold surface of the inner arc copper plate (12).

9. The high-efficiency combined crystallizer of claim 8, wherein: the arc water tank is characterized in that an outer arc water outlet (31) and an outer arc water inlet (32) are arranged on the outer arc water tank (14), an inner arc water inlet (38) and an inner arc water outlet (39) are arranged on the inner arc water tank (15), and each narrow surface water outlet (34) and a narrow surface water inlet (35) are arranged on the narrow surface water tank (16).

10. The high-efficiency combined crystallizer of claim 9, wherein: the outer arc water tank (14), the inner arc water tank (15) and the narrow surface water tank (16) are assembled through water tank assembling and positioning surfaces (37), and the water tank assembling and positioning surfaces (37) comprise a narrow surface water tank assembling and positioning surface (33) and an inner and outer arc water tank assembling and positioning surface (36);

the assembling and positioning surfaces (33) of the narrow-surface water tank are fixed on two sides of the outer arc water tank (14) and two sides of the inner arc water tank (15);

the assembling and positioning surfaces (36) of the inner arc water tank and the outer arc water tank are fixed on two sides of the narrow-surface water tank (16);

the narrow-face water tank assembling and positioning surface (33) is matched with the inner arc water tank assembling and positioning surface (36) and the outer arc water tank assembling and positioning surface.

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