Cooling water bag and its split neck secondary cooling device

Abstract

The present invention relates to the field of glass manufacturing technology, and in particular to a cooling water bag and a split-type neck-clamping secondary cooling device thereof, wherein the cooling water bag comprises a water pipe portion and a cooling portion for pressing into glass liquid; the water pipe portion comprises a water inlet pipe and a water outlet pipe, and a first gap is provided between the water inlet pipe and the water outlet pipe; the cooling portion is an annular coil, and a second gap is provided between the tube walls of the annular coil, one end of the annular coil is connected to the water inlet pipe, and the other end of the annular coil is connected to the water outlet pipe; the first gap is connected to the second gap; the present invention is used to overcome the problem that the immovable layer on the existing cooling water bag is easy to fall off, and the present invention can effectively prevent the immovable layer on the surface of the cooling water bag from falling off, improve product defects, and improve product quality.

Description

Technical Field

[0001] The invention relates to the technical field of glass manufacturing, and in particular to a cooling water bag and a split-type neck clamping secondary cooling device thereof. Background Art

[0002] In glass manufacturing, multiple cooling water bags are often arranged between the melting section and the cooling section of the glass melting furnace to cool the glass liquid at the neck position to avoid defects such as large bubbles, streaks, waviness, and warping on the glass plate, which affect the product quality of the glass.

[0003] When cooling the glass liquid, the existing cooling water bag needs to be pressed into the glass liquid. The cooling intensity of the glass liquid at the corresponding position is adjusted by controlling the pressing depth of the cooling water bag in the glass liquid to improve product defects. After the cooling water bag is pressed into the glass liquid, part of the glass liquid will condense on the surface of the cooling water bag to form an immovable layer. However, when the existing cooling water bag is withdrawn from the glass liquid, the immovable layer on the surface of the cooling water bag is prone to fall off, causing product defects. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned prior art, the present invention provides a cooling water bag and a split neck secondary cooling device thereof, which can effectively prevent the immobile layer on the surface of the cooling water bag from falling off, improve product defects and improve product quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a cooling water bag, comprising a water pipe part and a cooling part for pressing into the glass liquid;

[0006] The water pipe portion includes a water inlet pipe and a water outlet pipe, and a first gap is provided between the water inlet pipe and the water outlet pipe;

[0007] The cooling part is an annular coil, a second gap is provided between the tube walls of the annular coil, one end of the annular coil is connected to the water inlet pipe, and the other end of the annular coil is connected to the water outlet pipe;

[0008] The first gap is communicated with the second gap.

[0009] Furthermore, the water pipe portion and the cooling portion form a T-shaped structure, and the first gap and the second gap form a T-shaped gap.

[0010] Furthermore, the widths of the first gap and the second gap are the same.

[0011] Furthermore, the water inlet end of the water inlet pipe and the water discharge end of the water outlet pipe are respectively provided with arc-shaped pipe heads.

[0012] Furthermore, the annular coil includes a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe and a fifth connecting pipe which are connected in sequence, a gap is provided between the first connecting pipe and the fifth connecting pipe, the water inlet pipe is connected to the first connecting pipe, and the water outlet pipe is connected to the fifth connecting pipe.

[0013] Furthermore, the annular coil, the water inlet pipe and the water outlet pipe are square pipes respectively.

[0014] Furthermore, the length of the cooling part is 300-400 mm, and the height of the cooling part is 155 mm.

[0015] Furthermore, the width of the first gap and the width of the second gap are 15 mm respectively.

[0016] Furthermore, the present invention also provides a split neck secondary cooling device, comprising several of the above-mentioned split water bags, and also comprising a water bag bracket and a lifting mechanism, the water bag bracket comprising two supporting legs and a bracket frame, the two supporting legs are respectively fixed at the two ends of the bracket frame, the two supporting legs are respectively arranged on the opposite sides of the melting furnace neck pool, the bracket frame spans the melting furnace neck pool, and the bracket frame is provided with several first support plates arranged at intervals; several cooling water bags are arranged at intervals in the bracket frame, the cooling part of the cooling water bag faces the melting furnace neck pool, and the water pipe part of the cooling water bag is provided with a second support plate corresponding to the first support plate; the lifting mechanism is arranged between the first support plate and the second support plate, the outer shell of the lifting mechanism is connected to the first support plate, and the telescopic end of the lifting mechanism is connected to the second support plate.

[0017] Furthermore, the cooling parts of two adjacent cooling water bags are spaced 30-50 mm apart.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a cooling water bag, comprising a water pipe part and a cooling part for pressing into glass liquid; the water pipe part comprises a water inlet pipe and a water outlet pipe, and a first gap is provided between the water inlet pipe and the water outlet pipe; the cooling part is an annular coil, and a second gap is provided between the tube walls of the annular coil, one end of the annular coil is connected to the water inlet pipe, and the other end of the annular coil is connected to the water outlet pipe; the first gap is connected to the second gap;

[0020] When in use, after the cooling water bag is pressed down into the glass liquid, the glass liquid covers the cooling water bag and condenses on the surface of the cooling water bag to form an immovable layer. Since a connecting gap is provided between the cooling part and the water pipe part of the cooling water bag, the contact area between the glass liquid and the cooling water bag is increased, so that an immovable layer is also formed at the gap of the cooling water bag, thereby forming a limiting structure, making it difficult for the immovable layer to fall off, reducing product defects;

[0021] The present invention designs a first slit on the water pipe part and a second slit on the cooling part, and connects the first slit with the second slit, so that the glass liquid can condense between the slits and on the surface of the cooling water bag to form a solid immobile layer, which not only increases the connection area between the immobile layer and the cooling water bag, but also can limit the position of the immobile layer at the slit to prevent the entire immobile layer from falling off, avoid product defects, and thus improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 It is a front view of the cooling water bag in the present invention;

[0023] Attached Figure 2 It is a side view of the cooling water bag in the present invention;

[0024] Attached Figure 3 It is a structural schematic diagram of the split-type clamp neck secondary cooling device in the present invention;

[0025] Attached Figure 4 It is a structural schematic diagram of the support frame in the present invention.

[0026] Figure markings: 1-water pipe part; 110-water inlet pipe; 120-water outlet pipe; 2-cooling part; 210-first connecting pipe; 220-second connecting pipe; 230-third connecting pipe; 240-fourth connecting pipe; 250-fifth connecting pipe; 3-first gap; 4-second gap; 5-arc-shaped pipe head; 6-support leg; 7-support frame; 8-first support plate; 9-second support plate; 10-lifting mechanism; 11-furnace neck pool. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The present invention is described in one of the embodiments in combination with the specific implementation methods. Among them, the drawings are only used for exemplary descriptions, and only schematic diagrams are shown, not physical drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] Example 1

[0029] like Figure 1-2 As shown, this embodiment provides a cooling water bag, including a water pipe part 1 and a cooling part 2 for pressing into the glass liquid; the water pipe part 1 includes a water inlet pipe 110 and a water outlet pipe 120, and a first gap 3 is provided between the water inlet pipe 110 and the water outlet pipe 120; the cooling part 2 is an annular coil, and a second gap 4 is provided between the tube walls of the annular coil, one end of the annular coil is connected to the water inlet pipe 110, and the other end of the annular coil is connected to the water outlet pipe 120; the first gap 3 is connected to the second gap 4.

[0030] It should be noted that, in this embodiment, it is preferred to vertically arrange the water inlet pipe 110 and the water outlet pipe 120 side by side, and arrange the annular coil at the bottom end of the water pipe portion 1, so as to facilitate the pressing of the cooling portion 2 into the glass liquid. At the same time, in order to facilitate the connection of the first gap 3 with the second gap 4, a gap is provided on the annular coil of the cooling portion 2 in this embodiment, so that a water inlet and a water outlet are left on the annular coil, the water inlet pipe 110 is connected to the water inlet of the annular coil, and the water outlet pipe 120 is connected to the water outlet of the annular coil, so that the water inlet pipe 110 and the annular coil are connected. The annular coil and the outlet pipe 120 are connected in sequence, and the first gap 3 between the water inlet pipe 110 and the outlet pipe 120 is connected with the second gap 4 between the walls of the annular coil, so that after the glass liquid is pressed into the cooling water bag, the glass liquid forms an immovable layer on the surface of the cooling water bag and in the connected gaps, thereby increasing the connection area between the immovable layer and the cooling water bag. At the same time, the immovable layer structure at the gap is used to limit the position, thereby forming a strong condensation layer, avoiding the immovable layer on the surface of the cooling water bag from falling off, reducing defects in glass products, and improving product quality.

[0031] Furthermore, if Figure 1As shown, the annular coil in this embodiment is formed by welding five connecting tubes, including a first connecting tube 210, a second connecting tube 220, a third connecting tube 230, a fourth connecting tube 240 and a fifth connecting tube 250. The first connecting tube 210, the second connecting tube 220, the third connecting tube 230, the fourth connecting tube 240 and the fifth connecting tube 250 are connected in sequence, and a gap is provided between the first connecting tube 210 and the fifth connecting tube 250. In order to increase the contact area between the cooling part 2 and the glass liquid and prevent the immovable layer from falling off, the annular coil is preferably set as a rectangular structure in this embodiment, that is, the first connecting tube 210 is horizontally arranged, the second connecting tube 220 is vertically welded to one end of the first connecting tube 210, the third connecting tube 230 is horizontally welded to the other end of the second connecting tube 220, and the first connecting tube 210 and the third connecting tube 230 are relatively arranged, and the fourth connecting tube 240 is welded to the bottom of the connecting tube 250. The cooling water bag is welded to the other end of the fourth connecting pipe 240, and the fifth connecting pipe 250 is arranged opposite to the third connecting pipe 230. The first connecting pipe 210, the second connecting pipe 220, the third connecting pipe 230, the fourth connecting pipe 240 and the fifth connecting pipe 250 are connected in sequence to form a rectangle, and the gap between the pipe walls is the second gap 4; the water inlet pipe 110 is connected to the free end of the first connecting pipe 210, the water outlet pipe 120 is connected to the free end of the fifth connecting pipe 250, and the first gap 3 and the second gap 4 between the water inlet pipe 110 and the water outlet pipe 120 are connected through the gap between the first connecting pipe 210 and the fifth connecting pipe 250, so that the cooling water bag has a T-shaped structure, and the first gap 3 and the second gap 4 form a T-shaped gap to prevent the fixed layer from falling off.

[0032] Furthermore, if Figure 1 As shown, in this embodiment, it is preferred that the length of the cooling portion 2 is set to 300-400 mm, the height of the cooling portion 2 is set to 155 mm, and the widths of the first gap 3 and the second gap 4 are set to 15 mm respectively.

[0033] It should be noted that, due to the high viscosity of the glass liquid, when the cooling water bag is drawn out of the glass liquid, the downward pulling force of the glass liquid on the cooling water bag is large, which can easily damage the cooling water bag. If the cooling water bag structure is damaged and leaks, the glass liquid in the corresponding area will solidify, causing a production accident. However, at the same time, the cooling part 2 of the cooling water bag needs to cool the glass liquid to improve the defects. Therefore, in order to ensure the cooling effect of the cold water bag and reduce the damage to the cooling water bag caused by the high viscosity of the glass liquid, it is preferred to set the length of the cooling part 2 to 300-400mm, that is, the third connecting pipe 230 is preferably set to a length of 300-400mm; further In order to meet the depth requirement of the cooling water bag, the height of the cooling part 2 is preferably designed to be 155 mm, that is, the length of the second connecting pipe 220 and the fourth connecting pipe 240 is preferably designed to be 155 mm; at the same time, in order to ensure the cooling effect of the cooling water bag on the glass liquid and prevent the immobile layer from falling off, the widths of the first gap 3 and the second gap 4 are preferably designed to be the same size, so that the glass liquid can form a condensation layer at the gap. The first gap 3 and the second gap 4 are preferably designed to be 15 mm. When the gap is immersed in the glass liquid, it is conducive to the condensation of the glass liquid between the gaps and on the surface of the cooling water bag to form a solid immobile layer, prevent the immobile layer from falling off, and avoid product defects.

[0034] Furthermore, in order to increase the contact area between the glass liquid and the cooling water bag and facilitate welding of the cooling part 2 and the water pipe part 1, as shown in FIG. Figure 1 As shown, the annular coil, the water inlet pipe 110 and the water outlet pipe 120 are square pipes respectively.

[0035] It should be noted that in this embodiment, a 50*70 mm square tube is preferably used, wherein the connection points of the square tubes are all configured with oblique cuts to facilitate welding.

[0036] Furthermore, in order to facilitate the water inlet and outlet of the cooling water bag, as Figure 1 As shown, the water inlet end of the water inlet pipe 110 and the water outlet end of the water outlet pipe 120 are respectively provided with arc-shaped pipe heads 5.

[0037] It should be noted that the two arc-shaped pipe heads 5 are arranged opposite to each other, that is, they face outwards respectively, so as to facilitate external connection of water pipes. In this embodiment, an arc-shaped pipe head 5 with a diameter of 30 mm is preferably used.

[0038] Example 2

[0039] Existing neck water bags mostly use a vertical pressing method to cool the glass liquid at the neck position. The cooling intensity of the glass liquid at the corresponding position is adjusted by controlling the pressing depth of the neck water bag in the glass liquid to improve product defects. However, due to the limitation of the overall layout, the existing neck water bag needs to be pressed down as a whole when dealing with the defective area of ​​the glass liquid. It has poor flexibility and cannot achieve separate pressing on the defective area. After the overall pressing, although the defects in the local area are improved, it leads to problems such as increased bubbles in other areas, which greatly affects the stability of the melting condition. At the same time, the condensation layer on the cooling water bag is easy to fall off, causing product defects and reducing product quality.

[0040] like Figure 3-4 As shown, this embodiment provides a split type neck secondary cooling device, including the cooling water bag in embodiment 1, and also includes a water bag bracket and a lifting mechanism 10;

[0041] The water bag support includes two supporting legs 6 and a support frame 7. The two supporting legs 6 are respectively fixed at two ends of the support frame 7. The two supporting legs 6 are respectively arranged on opposite sides of the melting furnace neck pool 11. The support frame 7 spans the melting furnace neck pool 11. A plurality of first support plates 8 are arranged at intervals on the support frame 7.

[0042] A plurality of cooling water bags are arranged in a support frame 7 at intervals, and a cooling portion 2 of the cooling water bag faces the melting furnace neck pool 11. A second support plate 9 corresponding to the first support plate 8 is provided on the water pipe portion 1 of the cooling water bag;

[0043] The lifting mechanism 10 is disposed between the first support plate 8 and the second support plate 9 , a shell of the lifting mechanism 10 is connected to the first support plate 8 , and a telescopic end of the lifting mechanism 10 is connected to the second support plate 9 .

[0044] When in use, the water bag bracket is installed at the melting furnace neck pool 11, so that the cooling water bag on the water bag bracket is suspended above the melting furnace neck pool 11, and the lifting mechanism 10 is started. The telescopic end of the lifting mechanism 10 drives the second support plate 9 on the cooling water bag to move toward the first support plate 8 on the bracket frame 7, so that the distance between the first support plate 8 and the second support plate 9 is shortened, and then drives the cooling water bag to move toward the melting furnace neck pool 11. With the movement of the telescopic end of the lifting mechanism 10, the cooling part 2 of the cooling water bag is gradually pressed into the glass liquid. By adjusting the moving distance of the telescopic end of the lifting mechanism 10, the pressing depth of the cooling water bag in the glass liquid is adjusted to achieve cooling of glass liquid areas with different depths and improve defects in different areas. Each lifting mechanism 10 on the water bag bracket operates independently, and each lifting mechanism 10 corresponds to a cooling water bag. Each cooling water bag operates independently, and can flexibly adjust the pressing depth of each cooling water bag in the glass liquid, and make targeted adjustments to the defective areas, thereby improving the flexibility of use and product quality.

[0045] Furthermore, if Figure 3As shown, in the present embodiment, it is preferred to laterally arrange a plurality of cooling water bags in the support frame 7, that is, the cooling portion 2 of each cooling water bag is respectively arranged perpendicular to the side wall of the melting furnace neck pool 11, and a plurality of cooling water bags are laterally arranged to form a detachable adjustable water bag device. When each lifting mechanism 10 controls each cooling water bag to adjust up and down independently, each cooling water bag can achieve a different depth in the glass liquid, thereby realizing differential adjustment of cooling intensity at different lateral positions in the melting furnace neck pool 11.

[0046] Furthermore, if Figure 3 As shown, the cooling parts 2 of two adjacent cooling water bags are spaced 30-50 mm apart, and the cooling parts 2 of the cooling water bags at both ends are 30-50 mm away from the side wall of the melting furnace neck pool 11.

[0047] It should be noted that the spacing distance between two adjacent cooling parts 2 is used to provide a safe distance for component installation, and the spacing distance is preferably designed to be 30-50mm to prevent the spacing from being too large and the glass liquid between the cooling water bags being insufficiently cooled, causing the glass liquid to flow through. The cooling temperature between adjacent cooling water bags makes the glass liquid on the cooling water bags in a non-flowing state; the spacing between the cooling parts 2 on the cooling water bags at both ends and the side walls of the melting furnace neck pool 11 can ensure that a certain safety distance is reserved between the cooling water bags entering and exiting the pool wall to prevent the cooling water bags from colliding with the pool wall bricks when entering and exiting, causing damage to the cooling water bags and the pool wall bricks, and the spacing distance is preferably designed to be 30-50mm to prevent the safety distance from being too small and the cooling intensity of the cooling water bag from being too large, resulting in the pool wall bricks dropping in temperature too quickly and shrinking and cracking.

[0048] Furthermore, if Figure 4 As shown, in order to facilitate the installation of the cooling water bag in the bracket frame 7, the cooling water bag, the lifting mechanism 10 and the bracket frame 7 are assembled. In this embodiment, the bracket frame 7 is preferably used, and the first support plate 8 is spaced apart in the bracket frame 7, that is, except for the first support plate 8, the rest of the interior of the bracket frame 7 is a hollow structure, which is convenient for installing the cooling water bag and other devices at the hollow structure.

[0049] Furthermore, if Figure 4 As shown, in order to improve the supporting stability of the cooling water bag and make the lifting and lowering movement of the cooling water bag smooth, in this embodiment, the bracket frame 7 is preferably rectangular, and two rows of symmetrical first support plates 8 are provided in the bracket frame 7. The first support plates 8 are respectively arranged along the two opposite long sides of the bracket frame 7. At the same time, two symmetrical second support plates 9 are provided on the water pipe part 1 of each cooling water bag, and two lifting mechanisms 10 are used to support one cooling water bag at the same time, so as to ensure the force balance of the cooling water bag and improve the operation stability.

[0050] Furthermore, the lifting mechanism 10 in this embodiment can use an electric telescopic rod, fix the housing of the electric telescopic rod on the first support plate 8, connect the telescopic end of the electric telescopic rod to the second support plate 9 on the cooling water bag, and start the electric telescopic rod to push the second support plate 9 away from or close to the first support plate 8, adjust the distance between the first support plate 8 and the second support plate 9, thereby driving the cooling water bag to rise or fall in the bracket frame 7, so that the cooling water bag is pressed into the glass liquid, improves the defects, and the depth of multiple cooling water bags in the glass liquid can be adjusted arbitrarily, which is flexible to use;

[0051] The lifting mechanism 10 in this embodiment can also use a screw lifting mechanism 10, including a shell, a motor, a worm gear, a worm, a screw, a nut and a guide sleeve. The shell is fixed on the first support plate 8, the motor is installed in the shell, the worm is connected to the output shaft of the motor, the worm gear is rotatably arranged in the shell, the worm gear is meshed with the worm, the nut is fixed on the worm gear, the screw is threadedly connected with the nut, the guide sleeve is sleeved on the screw, the outer wall of the guide sleeve is connected to the shell, and the second support plate 9 is connected to the screw; start the motor, the motor drives the worm to rotate, the worm gear and the worm are meshed, the worm gear rotates in the shell, the worm gear drives the nut to rotate, the screw moves in the nut through thread transmission, and the screw is moved up and down by controlling the forward and reverse rotation of the motor to achieve the up and down movement of the screw, and the distance between the first support plate 8 and the second support plate 9 is adjusted, thereby achieving the up and down movement of the cooling water bag; further, a mounting cylinder for accommodating the screw is provided in the shell, and a mounting hole for accommodating the mounting cylinder is provided on the first support plate 8.

[0052] The split neck secondary cooling device in this embodiment realizes the independent adjustment of a single cooling water bag, can adjust the cooling intensity of the glass body in the melting furnace neck pool 11 in sections, and makes the adjustment of the defective area more precise, thereby improving the finished product rate and good product rate of the glass and improving the stability of the melting conditions.

[0053] In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary explanations and cannot be understood as a limitation of this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention, or directly / indirectly applied in other related technical fields should be included in the scope of protection of the claims of the present invention.

Claims

1. A cooling water bag, characterized in that: It includes a water pipe part and a cooling part for pressing into the glass liquid; The water pipe portion includes a water inlet pipe and a water outlet pipe, and a first gap is provided between the water inlet pipe and the water outlet pipe; The cooling part is an annular coil, a second gap is provided between the tube walls of the annular coil, one end of the annular coil is connected to the water inlet pipe, and the other end of the annular coil is connected to the water outlet pipe; The first gap is connected to the second gap; The water pipe portion and the cooling portion form a T-shaped structure, and the first gap and the second gap form a T-shaped gap; The annular coil includes a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe and a fifth connecting pipe which are connected in sequence, a gap is provided between the first connecting pipe and the fifth connecting pipe, the water inlet pipe is connected to the first connecting pipe, and the water outlet pipe is connected to the fifth connecting pipe.

2. The cooling water bag according to claim 1, characterized in that: The first slit and the second slit have the same width.

3. The cooling water bag according to claim 2, characterized in that: The water inlet end of the water inlet pipe and the water discharge end of the water outlet pipe are respectively provided with arc-shaped pipe heads.

4. The cooling water bag according to claim 1, characterized in that: The annular coil, the water inlet pipe and the water outlet pipe are respectively square pipes.

5. The cooling water bag according to claim 4, characterized in that: The length of the cooling part is 300-400 mm, and the height of the cooling part is 155 mm.

6. The cooling water bag according to claim 5, characterized in that: The widths of the first gap and the second gap are 15 mm respectively.

7. A split type neck clamp secondary cooling device, characterized in that: It comprises a plurality of cooling water bags as claimed in any one of claims 1 to 6, and also comprises a water bag support and a lifting mechanism; The water bag support includes two supporting legs and a support frame, the two supporting legs are respectively fixed at two ends of the support frame, the two supporting legs are respectively arranged on opposite sides of the melting furnace neck pool, the support frame spans the melting furnace neck pool, and the support frame is provided with a plurality of first support plates arranged at intervals; A plurality of cooling water bags are arranged in the support frame at intervals, the cooling portion of the cooling water bag faces the melting furnace neck pool, and a second support plate corresponding to the first support plate is provided on the water pipe portion of the cooling water bag; The lifting mechanism is arranged between the first supporting plate and the second supporting plate, a shell of the lifting mechanism is connected to the first supporting plate, and a telescopic end of the lifting mechanism is connected to the second supporting plate.

8. A split type neck secondary cooling device according to claim 7, characterized in that: The cooling parts of two adjacent cooling water bags are spaced 30-50 mm apart.

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