High-temperature melt drop point launder

Abstract

The utility model discloses a high-temperature melt drop point launder which comprises a launder inner shell, a launder outer shell is arranged in the launder inner shell, the launder inner shell and the launder outer shell are connected in a sealed mode, circulating cooling water is arranged in a sealed space between the launder inner shell and the launder outer shell, the launder outer shell comprises a drop point groove, and an overflow groove is formed in the upper portion of one side of the drop point groove. And the drop point groove is a spherical groove. According to the utility model, the drop point groove is matched with the overflow groove in structure, so that the drop point of a high-temperature melt is arranged at the deep part of the bottommost part of the drop point groove, and the high-temperature melt firstly contacts with molten liquid in the drop point groove when being discharged and contacts with the drop point groove body after being buffered by the molten liquid; the impact load on the drop point groove caused by fall is basically eliminated, the situation that the launder is scrapped due to local damage of the drop point can be avoided, a large amount of replacement cost can be saved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of flow channel devices, in particular to a high-temperature melt landing flow channel. Background Art

[0002] In industrial production, when industrial high-temperature molten materials are discharged from the high-temperature furnace, they will first be led out through the primary metal flow channel, and then the welded secondary metal flow channel is usually used to transport the melt out of the production device. The secondary metal flow channel for transporting the melt is equipped with a jacket and is long and strip-shaped. A circulating cooling medium is passed through the jacket for overall cooling. For example, the molten sodium carbonate liquid flowing out of the furnace of a high-temperature alkali furnace reaches a temperature of 1100°C. After flowing smoothly through the primary flow channel, it flows into the secondary metal flow channel with a certain drop and in an impact manner.

[0003] That is, the first contact point between the existing flow channel and the high-temperature molten material is subjected to the impact load caused by the drop, and coupled with the high temperature, the first contact point of the flow channel is quickly worn out and perforated, rendering the entire flow channel scrapped; the flow channel is quickly scrapped due to the perforation of a landing point, which not only causes a huge waste of equipment, but also affects the continuous production of the device. Utility Model Content

[0004] The utility model provides a high-temperature melt drop flow channel, which is used to solve the technical problems raised in the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high-temperature melt landing flow channel comprises a flow channel inner shell, a flow channel outer shell is arranged inside the flow channel inner shell, the flow channel inner shell and the flow channel outer shell are sealed and connected, circulating cooling water is arranged in the sealed space between the flow channel inner shell and the flow channel outer shell, the flow channel outer shell comprises a landing groove, an overflow groove is arranged on the upper part of one side of the landing groove, and the landing groove is a spherical groove.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] The utility model uses the coordinated effect of the flow channel shell, the landing point slot, the overflow slot and other structures to enable the device to utilize the structural coordination of the landing point slot and the overflow slot so that the high-temperature melt landing point is set at the deepest bottom of the landing point slot. When the high-temperature melt flows down, it first contacts the molten liquid in the landing point slot, and only contacts the landing point slot body after being buffered by the molten liquid, thereby basically eliminating the impact load on the landing point slot caused by the drop, avoiding the flow channel from being scrapped due to local damage at the landing point, saving a lot of replacement costs, and increasing the service life of the device.

[0009] As a further improvement of the above solution, the top of the flow channel inner shell is sealedly connected to the flow channel outer shell through a top plate, and a bottom plate is provided at the bottom of the flow channel inner shell.

[0010] The technical effect of the above improvement is: through the arrangement of the top plate and the bottom plate, the device can further facilitate the installation of the flow channel inner shell and the flow channel outer shell, thereby improving the sealing effect between the flow channel inner shell and the flow channel outer shell.

[0011] As a further improvement of the above solution, a water outlet is provided through the top plate, and a water inlet is provided through the bottom of the bottom plate.

[0012] The technical effect of the above improvement is: through the setting of the water inlet and the water outlet, the device can further facilitate the setting and control of the circulating cooling water path between the inner shell and the outer shell of the flow channel, that is, the cooling water is filled in from the water inlet and discharged from the water outlet.

[0013] As a further improvement of the above solution, a flow guide annular baffle adapted to the outer wall of the drop point groove is arranged in the inner shell of the flow groove.

[0014] The technical effect of the above improvement is: through the setting of the guide annular baffle, a narrow gap is formed between the guide annular baffle of the device and the outer side of the landing groove, so that the circulating cooling water can rise from the bottom through this gap and cling to the outer wall of the flow channel shell, thereby enhancing the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in the direction of A.

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model in the direction of B.

[0019] In the figure: 1. inner shell of flow channel; 2. outer shell of flow channel; 21. landing point groove; 22. overflow groove; 3. guide annular partition; 4. water inlet; 5. water outlet; 6. top plate; 7. bottom plate. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution, the utility model is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0021] Embodiment 1:

[0022] like Figure 1-2As shown, the specific scheme of this embodiment is: a high-temperature melt landing flow channel, including a flow channel inner shell 1, a flow channel outer shell 2 is arranged in the flow channel inner shell 1, the flow channel inner shell 1 and the flow channel outer shell 2 are sealed and connected, and circulating cooling water is arranged in the sealed space between the flow channel inner shell 1 and the flow channel outer shell 2. The circulating cooling path of the cooling water is arranged, which can better quickly cool the place where the flow channel outer shell 2 needs cooling the most, avoid the reduction of metal strength at high temperature, improve the performance of the device, and thus extend the service life of the device; the flow channel outer shell 2 includes a landing groove 21, and an overflow groove 22 is arranged on the upper part of one side of the landing groove 21. The landing groove 21 is a spherical groove, that is, the landing groove 21 and the overflow groove 22 of the flow channel outer shell 2 are combined to form a shape similar to a gourd, and the landing groove 21 and the overflow groove 22 are integrally formed by precision casting to avoid the defects of the weld and the welding heat affected zone when welding is used to affect the service life of the flow channel outer shell 2, and improve the overall strength of the flow channel outer shell 2.

[0023] Embodiment 2:

[0024] like Figure 1 As shown, as a preferred embodiment of the above-mentioned embodiment, the top of the flow channel inner shell 1 is sealedly connected to the flow channel outer shell 2 through the top plate 6, and the bottom of the flow channel inner shell 1 is sealed with a bottom plate 7. Through the arrangement of the top plate 6 and the bottom plate 7, the device can further facilitate the installation of the flow channel inner shell 1 and the flow channel outer shell 2, and improve the sealing effect between the flow channel inner shell 1 and the flow channel outer shell 2. A water outlet 5 is provided through the top plate 6, and a water inlet 4 is provided through the bottom of the bottom plate 7. In this embodiment, flange interfaces are selected at the water inlet 4 and the water outlet 5. Through the arrangement of the water inlet 4 and the water outlet 5, the device can further facilitate the arrangement and control of the circulating cooling water circuit between the flow channel inner shell 1 and the flow channel outer shell 2, that is, the cooling water is filled from the water inlet 4 and the cooling water is discharged from the water outlet 5. A guide annular baffle 3 adapted to the outer wall of the drop point groove 21 is provided in the flow channel inner shell 1. By setting the guide annular baffle 3, a narrow gap is formed between the guide annular baffle 3 of the device and the outer side of the drop point groove 21, so that the circulating cooling water can pass through the gap and cling to the outer wall of the flow channel shell 2 when rising from the bottom, thereby enhancing the cooling effect.

[0025] The specific working principle of this utility model:

[0026] When the device is used, it will be set between the primary and secondary metal melt flow channels. When the high-temperature melt flows down from the primary flow channel, it first contacts the flow channel shell 2 of the device. The high-temperature melt enters the landing groove 21 of the flow channel shell 2 and is cooled by the circulating cooling water between the flow channel inner shell 1 and the flow channel shell 2 to form a molten liquid. The subsequent high-temperature melt continues to fall into the landing groove 21 and will first be buffered by the molten liquid before contacting the landing groove 21 body, which basically eliminates the impact load on the flow channel shell 2 caused by the drop. After the high-temperature melt flowing from the primary metal melt flow channel fills the landing groove 21, it will overflow from the overflow groove 22 on one side until it flows out of the flow channel shell 2 and enters the secondary metal melt flow channel. In the above process, the utility model uses the coordinated effect of the flow channel shell 2, the landing groove 21, the overflow groove 22 and other structures to enable the device to utilize the structural coordination of the landing groove 21 and the overflow groove 22 to set the high-temperature melt landing point at the deepest bottom of the landing groove 21. When the high-temperature melt flows down, it first contacts the molten liquid in the landing groove 21, and only contacts the landing groove 21 body after being buffered by the molten liquid. The impact load on the landing groove 21 caused by the drop is basically eliminated, and the flow channel can be avoided from being scrapped due to local damage at the landing point, which can save a lot of replacement costs and increase the service life of the device.

[0027] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. High temperature melt drop flow channel, characterized in that: The invention comprises a flow channel inner shell (1), a flow channel outer shell (2) is arranged inside the flow channel inner shell (1), the flow channel inner shell (1) and the flow channel outer shell (2) are sealedly connected, circulating cooling water is arranged in the sealed space between the flow channel inner shell (1) and the flow channel outer shell (2), the flow channel outer shell (2) comprises a drop point groove (21), an overflow groove (22) is arranged on the upper part of one side of the drop point groove (21), and the drop point groove (21) is a spherical groove.

2. The high temperature melt drop flow channel according to claim 1, characterized in that: The top of the flow channel inner shell (1) is sealedly connected to the flow channel outer shell (2) via a top plate (6), and a bottom plate (7) is provided at the bottom of the flow channel inner shell (1).

3. The high temperature melt drop flow channel according to claim 2, characterized in that: A water outlet (5) is provided through the top plate (6), and a water inlet (4) is provided through the bottom of the bottom plate (7).

4. The high temperature melt drop flow channel according to claim 1, characterized in that: A flow guide annular baffle (3) adapted to the outer wall of the drop point groove (21) is arranged in the flow groove inner shell (1).

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