Flushing device for water seal tank at top of dry quenching furnace

Abstract

The utility model discloses a flushing device for a water seal tank at the top of a dry quenching furnace, which belongs to the field of metallurgy and comprises a flushing water pipe which is in a circular ring shape and is fixed at the bottom of the inner side wall of the water seal tank. The flushing water pipe comprises a water inlet end and a tail end; the water inlet end penetrates through the outer side wall of the water seal tank so as to be externally connected with a water source; the tail end is closed, so that water is prevented from flowing out along the tail end; water spraying holes are formed in the outer side of the flushing water pipe and used for discharging water into the water seal tank. The device has the advantages of reasonable structure, good flushing effect, convenience in installation, stability in operation and the like, and is convenient for flushing the water seal tank at the top of the dry quenching furnace.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgy, and in particular relates to a washing device for a water seal groove on a top of a dry quenching furnace. Background Art

[0002] The CDQ furnace top water seal groove is mainly used for sealing and cooling the CDQ furnace top. It cooperates with the furnace cover to prevent dust from overflowing and air from leaking in. The liquid seal formed inside the water seal groove prevents air leakage and avoids safety hazards.

[0003] The working medium in the water seal tank is continuously flowing circulating water. During the coke loading process, coke powder will fall into the water seal tank, and the inner circle of the water seal tank will be exposed to high temperature radiation in the furnace. If the sediment falling into the water seal tank cannot be discharged in time, a large amount of coke powder and scale will be deposited in the water seal tank, causing the water temperature in the water seal tank to rise. When the temperature rises, new scale will form. The scale attached to the water seal tank is difficult to clean, which reduces the service life of the water seal tank.

[0004] The water seal groove on the top of the CDQ oven currently in use needs to be cleaned manually every day, which not only increases the labor intensity but also poses a certain risk. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a device for flushing a water seal groove on a top of a dry quenching furnace.

[0006] The utility model is implemented as follows: a device for flushing a water seal groove on a dry quenching furnace top comprises a flushing water pipe, which is arranged in a circular ring shape and fixed to the bottom of the inner wall of the water seal groove; the flushing water pipe comprises a water inlet end and an end end; the water inlet end passes through the outer wall of the water seal groove so as to be connected to an external water source; the end end is closed to prevent water from flowing out along the end end; a water spray hole is arranged on the outer side of the flushing water pipe, and the water spray hole is used to discharge water into the water seal groove.

[0007] Furthermore, the water spray holes are arranged every 30±2 cm and are inclined at 30±5 degrees to the water flow direction.

[0008] Furthermore, the water inlet end includes a bottom connecting section, one end of the bottom connecting section is connected to the flushing water pipe, the other end of the bottom connecting section is connected to a vertical connecting section, the vertical connecting section is vertically upward from the bottom connecting section, the other end of the vertical connecting section is connected to a top connecting section, the other end of the top connecting section is provided with a flange on the outer side, and the flange is used to be fixedly connected to the water source pipeline.

[0009] Furthermore, a clamp is provided on the outside of the flushing water pipe, and the clamp is fixed on the bottom wall of the water seal groove.

[0010] Furthermore, an overflow port is provided on the outer side wall of the water seal groove, and the bottom surface of the overflow port is higher than the bottom surface of the water seal groove by more than 150 mm.

[0011] Furthermore, the overflow port is provided with an overflow groove extending outwardly, and the overflow groove is configured as a trapezoidal groove.

[0012] The utility model has the following advantages and technical effects:

[0013] 1. Efficient flushing: By setting the flushing water pipe in a circular shape, it can be ensured that all areas in the water seal groove can be flushed evenly, thereby improving the flushing efficiency.

[0014] 2. Effective flushing water pressure: The end of the flushing water pipe is designed to be closed, which can effectively prevent water from flowing out from the end and affecting the water pressure of the water spray outlet.

[0015] 3. Spray water evenly and drive water flow: The water spray holes are set every 30±2cm and inclined 30±5 degrees to the water flow direction. This design ensures that the water sprayed from the water spray holes can evenly cover all areas in the water seal groove, improve the flushing effect, and drive the water flow to stir up impurities.

[0016] 4. Convenient connection: The flange design makes it easy to connect the device to water source pipelines of different specifications.

[0017] 5. Fixed and stable: The clamp installed on the outside of the flushing water pipe can be firmly fixed on the bottom wall of the water seal groove, avoiding the movement or shaking of the water pipe during the flushing process, and ensuring the stability and safety of the flushing.

[0018] 6. Effective control of overflow water: The overflow port arranged on the outer wall of the water seal groove and the trapezoidal overflow groove extending outward can discharge water in time when the water level in the water seal groove is too high.

[0019] 7. Improve equipment life: Through effective flushing, impurities and sediments in the water seal tank can be removed, keeping the water seal tank clean and unobstructed, thereby extending the service life of the water seal tank.

[0020] In summary, the device has the advantages of reasonable structure, good flushing effect, convenient installation, stable operation, etc., and is convenient for flushing the water seal groove on the top of the dry quenching furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure after being assembled with the water seal groove provided by the embodiment of the utility model;

[0022] Figure 2 It is a top view of the embodiment of the utility model after being assembled with the water seal groove;

[0023] Figure 3It is a schematic diagram of the structure of the flushing device provided in the embodiment of the utility model.

[0024] In the figure: 1. flushing water pipe; 2. water seal groove; 3. water inlet end; 4. end; 5. flange; 6. water spray hole; 7. top connecting section; 8. outer wall; 9. overflow port; 10. overflow groove; 11. bottom connecting section; 12. vertical connecting section; 13. clamp. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0026] See also Figures 1 to 3 , a CDQ furnace top water seal groove flushing device is used for regularly flushing the water seal groove.

[0027] The flushing device includes a flushing water pipe 1, which is made of a stainless steel pipe. The flushing water pipe 1 is in a circular ring shape and is fixed to the bottom of the inner wall of the water seal groove 2. Being arranged close to the inner wall of the water seal groove 2 is beneficial to lowering the temperature of the inner wall of the water seal groove 2. According to actual production conditions, multiple groups of flushing water pipes 1 can also be arranged to facilitate the cleaning of the water seal groove.

[0028] The flushing water pipe 1 is an open circular ring, including a water inlet end 3 and an end 4; the water inlet end 3 passes through the outer wall 8 of the water seal groove 2 to connect to an external water source; the end 4 is closed to prevent water from flowing out along the end 4; a water spray hole 6 is provided on the outside of the flushing water pipe 1, and the water spray hole 6 is used to release water into the water seal groove 2 for flushing.

[0029] The water spray holes 6 are arranged every 30±2cm and are inclined at 30±5 degrees to the water flow direction; the water inlet pressure in the flushing water pipe 1 is 0.3-0.4MPa, so as to facilitate the water flow to spray out from the water spray holes 6 to flush the water seal groove.

[0030] The water inlet end 3 includes a bottom connecting section 11, one end of which is welded to the flushing water pipe 1. After the bottom connecting section 11 passes through the outer wall 8, it is welded to the outer wall 8 to avoid leakage between the bottom connecting section 11 and the outer wall 8; the other end of the bottom connecting section 11 is welded to a vertical connecting section 12, and the vertical connecting section 12 is vertically arranged upward from the bottom connecting section 11. The other end of the vertical connecting section 12 is welded to a top connecting section 7, and the top connecting section 7 is perpendicular to the vertical connecting section 12 and extends radially outward along the water seal groove; the structural setting of the water inlet end 3 prevents the device from interfering with the top cover of the dry quenching furnace; a flange 5 is welded to the outside of the other end of the top connecting section 7, and the flange 5 is used to be fixedly connected to the water source pipeline.

[0031] A clamp 13 is sleeved on the outside of the flushing water pipe 1, and the clamp 13 is bolted to the bottom wall of the water seal groove 2; preferably, the clamp 13 is provided in three numbers, evenly distributed on the outside of the flushing water pipe 1 and fixes the flushing water pipe 1 to the bottom wall of the water seal groove 2.

[0032] An overflow port 9 is provided on the outer wall 8 of the water seal groove 2, and the bottom surface of the overflow port 9 is higher than the bottom surface of the water seal groove 2 by more than 150 mm to meet the liquid level height requirement of the water seal; an overflow groove 10 is provided extending outward from the overflow port 9, and the overflow groove 10 is a trapezoidal groove whose cross-sectional area gradually decreases from the overflow port 9 to the outside. The overflow groove 10 discharges the overflow sewage flushed through the water seal groove 2 and then conducts centralized sewage treatment.

[0033] The water seal tank on the top of the dry quenching furnace is flushed 1-2 times per shift, and each flushing lasts about 30 seconds. When flushing, the water source is turned on, and water is sprayed out from the water spray hole 6, driving the sealing water in the water seal tank to flow and stir up the deposited impurities. After the liquid level of the flowing sewage exceeds the overflow port, the water flow drives the impurities to flow out from the overflow port; and regularly filling the water seal tank with water is also conducive to reducing the temperature of the water seal tank.

[0034] The device solves the problem of coke powder deposition without changing the original size, reduces the labor intensity of manual cleaning, and at the same time reduces the temperature of the inner ring within a certain range to reduce scaling.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for flushing a water seal groove on a top of a dry quenching furnace, comprising a flushing water pipe (1), characterized in that: The flushing water pipe (1) is arranged in a circular ring shape and is fixed to the bottom of the inner wall of the water seal groove (2); the flushing water pipe (1) comprises a water inlet end (3) and an end (4); the water inlet end (3) passes through the outer wall (8) of the water seal groove (2) so as to be connected to an external water source; the end (4) is closed to prevent water from flowing out along the end (4); a water spray hole (6) is arranged on the outer side of the flushing water pipe (1), and the water spray hole (6) is used to discharge water into the water seal groove (2).

2. The device for flushing water seal grooves on the top of a dry quenching furnace according to claim 1 is characterized in that: The water spray holes (6) are arranged every 30±2 cm and are inclined at 30±5 degrees in the direction of water flow.

3. The device for flushing water seal grooves on the top of a dry quenching furnace according to claim 1, characterized in that: The water inlet end (3) comprises a bottom connecting section (11), one end of the bottom connecting section (11) is connected to the flushing water pipe (1), the other end of the bottom connecting section (11) is connected to a vertical connecting section (12), the vertical connecting section (12) is arranged vertically upward from the bottom connecting section (11), the other end of the vertical connecting section (12) is connected to a top connecting section (7), the other end of the top connecting section (7) is provided with a flange (5) on the outside, and the flange (5) is used to be fixedly connected to a water source pipeline.

4. The device for flushing water seal grooves on the top of a dry quenching furnace according to claim 3 is characterized in that: A clamp (13) is provided on the outside of the flushing water pipe (1), and the clamp (13) is fixed on the bottom wall of the water seal groove (2).

5. The device for flushing water seal grooves on the top of a dry quenching furnace according to claim 1, characterized in that: An overflow port (9) is provided on the outer side wall (8) of the water seal groove (2), and the bottom surface of the overflow port (9) is higher than the bottom surface of the water seal groove (2) by more than 150 mm.

6. The device for flushing water seal grooves on the top of a dry quenching furnace according to claim 5, characterized in that: The overflow port (9) is provided with an overflow groove (10) extending outwards, and the overflow groove (10) is configured as a trapezoidal groove.

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