Water cooling cylinder for slag runner

Abstract

The utility model relates to the technical field of water-cooling barrels, in particular to a water-cooling barrel for a slag runner, which comprises a barrel body with a hollow barrel wall, the inside of the barrel body is divided into a main cooling cavity and an auxiliary cooling cavity by a partition plate, a water inlet end and a water outlet end are arranged on the barrel body, the water inlet end is respectively communicated with the main cooling cavity and the auxiliary cooling cavity, and the water outlet end is communicated with the main cooling cavity and the auxiliary cooling cavity. The water outlet end is respectively communicated with the main cooling cavity and the auxiliary cooling cavity; partition strips are arranged in the main cooling cavity, and flow channels are formed in the main cooling cavity through the partition strips. The slag runner head has the beneficial effects that in actual use, the barrel body is arranged in the slag runner head, so that slag flows through the barrel body and is cooled through the barrel body, and the phenomenon that the slag head is shrunk and peeled off due to thermal expansion and cold contraction caused by overhigh temperature of the slag is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water cooling cylinders, in particular to a slag ditch water cooling cylinder. Background Art

[0002] In the blast furnace ironmaking process, the slag ditch is a channel for timely discharge of high-temperature slag, which is a key link to ensure the continuous and stable production of the blast furnace. As an important part of the slag ditch, the performance of the slag ditch lining is directly related to the service life and production efficiency of the slag ditch. At present, the slag ditch lining widely uses Al2O3-SiC-C refractory castables, which have been widely used for their good corrosion resistance and thermal shock resistance.

[0003] However, the use environment of slag lining refractory castables is extremely harsh; because the slag lining castables contain Al2O3, SiC, C and other components, during the ironmaking process, the alkaline slag reacts chemically with the acidic oxides in the slag lining castables to generate low-melting point compounds. These low-melting point compounds form a molten state under high temperature and are easily washed away or turned into liquid and enter the slag, causing the slag lining castable to lose its structural strength and form chemical erosion; especially in the roundabout area at the bend of the slag lining and the slag lining head, which are most severely eroded by the slag.

[0004] In addition, the erosion of the slag groove mouth is particularly serious, which requires frequent repairs to maintain production. This is mainly due to the high temperature of the slag. During the interval between iron tapping, the large temperature difference between hot and cold causes the thermal expansion and contraction phenomenon to intensify, and the slag groove mouth shrinks and peels off due to thermal expansion and contraction.

[0005] Therefore, a slag ditch water cooling cylinder is needed to overcome the occurrence of the above-mentioned problems. Utility Model Content

[0006] In order to solve the above problems, the embodiment of the utility model provides a slag ditch water cooling cylinder, which achieves the purpose of solving the problems raised in the background technology.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a slag ditch water-cooled cylinder, comprising a cylinder with a hollow cylinder wall, the interior of the cylinder is partitioned by a partition to form a main cooling chamber and an auxiliary cooling chamber, the cylinder is provided with a water inlet end and a water outlet end, the water inlet end is respectively connected with the main cooling chamber and the auxiliary cooling chamber, and the water outlet end is respectively connected with the main cooling chamber and the auxiliary cooling chamber; the interior of the main cooling chamber is provided with a partition bar, and the partition bar forms a flow channel inside the main cooling chamber.

[0008] As a further improvement of the above technical solution:

[0009] The flow channels are centrally arranged at the lower part of the cylinder.

[0010] The water inlet and the water outlet are arranged at the upper part of the cylinder.

[0011] One end of the cylinder is provided with a discharge end which is respectively connected with the main cooling chamber and the auxiliary cooling chamber.

[0012] A refractory lining is arranged on the inner wall of the cylinder.

[0013] The beneficial effects of the embodiments of the utility model are:

[0014] In actual use, the cylinder is installed in the slag ditch head, so that the slag flows through the inside of the cylinder, and the slag is cooled by the cylinder, thereby avoiding the shrinkage and peeling of the slag head due to thermal expansion and contraction caused by excessive slag temperature;

[0015] In actual use, part of the cooling water enters the main cooling chamber through the water inlet, passes through the flow channel and is discharged through the water outlet, and part of the cooling water enters the auxiliary cooling chamber through the water inlet, and is finally discharged through the water outlet; the guiding effect of the flow channel makes the cooling water circulation effect in the main cooling chamber better, thereby ensuring the cooling effect on the slag; when the slag flows through, the cylinder is affected by heat conduction, so that the temperature of the entire cylinder increases, and the auxiliary cooling chamber mainly cools the entire cylinder; through the cooperation of the main cooling chamber and the auxiliary cooling chamber, the cooling effect on the slag flowing through is improved;

[0016] During actual operation, the liquid level of the slag is relatively low, and it is mainly concentrated in the lower part of the cylinder when flowing through the cylinder. The present application concentrates the flow channels in the lower part of the cylinder so that the length of the flow channels is controlled within a smaller range, thereby improving the circulation effect of the cooling water and further improving the cooling effect of the slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model from a first viewing angle;

[0019] Figure 3 It is a cross-sectional schematic diagram of the utility model from a second viewing angle;

[0020] Figure 4 It is a cross-sectional schematic diagram of the utility model from a third viewing angle.

[0021] In the figure: 1. Cylinder; 2. Partition; 3. Main cooling chamber; 4. Auxiliary cooling chamber; 5. Water inlet end; 6. Water outlet end; 7. Partition bar; 8. Flow channel; 9. Discharge end; 10. Refractory lining. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] See also Figures 1 to 4 The utility model discloses a slag ditch water-cooling cylinder, comprising a hollow cylinder 1, the cylinder wall of the cylinder 1 is partitioned by a partition 2 to form a main cooling chamber 3 and an auxiliary cooling chamber 4, and the cylinder 1 is provided with a water inlet 5 and a water outlet 6, the water inlet 5 is respectively connected to the main cooling chamber 3 and the auxiliary cooling chamber 4, the water outlet 6 is respectively connected to the main cooling chamber 3 and the auxiliary cooling chamber 4, and the main cooling chamber 3 is arranged near the cylinder 1; cooling water is introduced through the water inlet 5, and the cooling water is discharged through the water outlet 6, so that the cooling water is circulated in the cylinder wall of the cylinder 1, so as to cool the slag; the cylinder 1, the partition 2 and the partition bar 7 can all be made of materials with good thermal conductivity, such as copper;

[0024] A partition bar 7 is provided inside the main cooling chamber 3, and the partition bar 7 forms a flow channel 8 inside the main cooling chamber 3;

[0025] In actual use, the cylinder 1 is installed in the slag ditch head, so that the slag flows through the inside of the cylinder 1, and the slag is cooled by the cylinder 1, thereby preventing the slag head from shrinking and peeling due to thermal expansion and contraction caused by excessive slag temperature;

[0026] In actual use, part of the cooling water enters the main cooling chamber 3 through the water inlet end 5, passes through the flow channel 8 and is discharged through the water outlet end 6, and part of the cooling water enters the auxiliary cooling chamber 4 through the water inlet end 5, and is finally discharged through the water outlet end 6; through the guiding effect of the flow channel 8, the cooling water circulation effect in the main cooling chamber 3 is better, thereby ensuring the cooling effect on the slag; when the slag flows through, the cylinder 1 is affected by heat conduction, so that the overall temperature of the cylinder 1 increases, and the auxiliary cooling chamber 4 mainly cools the cylinder 1 as a whole; through the cooperation of the main cooling chamber 3 and the auxiliary cooling chamber 4, the cooling effect on the slag flowing through is improved.

[0027] As a further illustration of this application:

[0028] The flow channel 8 is centrally arranged at the lower part of the cylinder 1. During actual operation, the liquid level of the slag is relatively low, and it is mainly concentrated at the lower part of the cylinder 1 when flowing through the cylinder 1. The present application centrally arranges the flow channel 8 at the lower part of the cylinder 1, so that the length of the flow channel 8 is controlled within a smaller range, thereby improving the circulation effect of the cooling water, and further improving the cooling effect on the slag.

[0029] As a further illustration of this application:

[0030] The water inlet end 5 and the water outlet end 6 are arranged at the upper part of the cylinder 1. During actual operation, the liquid level of the slag is relatively low, and it is mainly concentrated in the lower part of the cylinder 1 when flowing through the cylinder 1. Therefore, after the water inlet end 5 and the water outlet end 6 are arranged at the upper part of the cylinder 1, it can be avoided that the slag contacts the water inlet end 5 and the water outlet end 6 and causes wear to them.

[0031] As a further illustration of this application:

[0032] One end of the cylinder 1 is provided with a discharge end 9 which is connected with the main cooling chamber 3 and the auxiliary cooling chamber 4 respectively. The discharge end 9 can be set as a switch. When the cylinder 1 needs to be inspected, the discharge end 9 is opened to discharge the hot water vapor inside the main cooling chamber 3 and the auxiliary cooling chamber 4.

[0033] As a further illustration of this application:

[0034] A refractory lining 10 is provided on the inner wall of the cylinder 1 , so that the slag contacts the refractory lining 10 , thereby preventing the slag from wearing the cylinder 1 .

[0035] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0038] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A slag ditch water cooling cylinder, characterized in that: The invention comprises a cylinder (1) with a hollow cylinder wall, the interior of the cylinder (1) is partitioned by a partition (2) to form a main cooling chamber (3) and an auxiliary cooling chamber (4), the cylinder (1) is provided with a water inlet end (5) and a water outlet end (6), the water inlet end (5) is respectively connected to the main cooling chamber (3) and the auxiliary cooling chamber (4), and the water outlet end (6) is respectively connected to the main cooling chamber (3) and the auxiliary cooling chamber (4); A partition bar (7) is arranged inside the main cooling chamber (3), and the partition bar (7) forms a flow channel (8) inside the main cooling chamber (3).

2. The slag ditch water cooling cylinder according to claim 1, characterized in that: The flow channels (8) are centrally arranged at the lower part of the cylinder (1).

3. The slag ditch water cooling cylinder according to claim 1, characterized in that: The water inlet end (5) and the water outlet end (6) are arranged at the upper part of the cylinder (1).

4. The slag ditch water cooling cylinder according to claim 1, characterized in that: One end of the cylinder (1) is provided with a discharge end (9) which is respectively connected to the main cooling chamber (3) and the auxiliary cooling chamber (4).

5. The slag ditch water cooling cylinder according to claim 1, characterized in that: A refractory lining (10) is provided on the inner wall of the cylinder (1).

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