Double-water-level annular furnace water seal

Abstract

The utility model relates to the technical field of annular furnace blank heating, in particular to a double-water-level annular furnace water seal which comprises an inner ring water seal tank, an inner ring water seal static cutter, an inner ring water seal moving cutter, an outer ring water seal tank, an outer ring water seal static cutter, an outer ring water seal moving cutter and a slag discharging device. An inner ring static cutter support is further installed on the inner ring stand column, an inner ring water seal static cutter is supported by the inner ring static cutter support, an inner ring water seal moving cutter is installed on the furnace bottom of the annular furnace through an inner ring moving cutter support, and an outer ring water seal groove is supported by an outer ring stand column. The annular furnace body is effectively sealed through double-water-level sealing and the overflow deslagging device, the authenticity of furnace pressure is improved, heat loss is reduced, the temperature of a furnace bottom steel structure is reduced, and safety and stability of the annular furnace are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of annular furnace blank heating, in particular to a double-water-level annular furnace water seal. Background Art

[0002] The annular furnace is the largest equipment for hot-rolled seamless pipes. In order to reduce energy loss and ensure that the furnace pressure meets the process requirements, the furnace body must be sealed. At present, the inner and outer ring water seals of the annular furnace have poor sealing, the furnace pressure is distorted, and the heat is transferred outward, resulting in a high temperature at the bottom of the furnace.

[0003] Therefore, a double-water-level annular furnace water seal is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a double-water-level annular furnace water seal in order to solve the above-mentioned problems, so as to ensure reliable sealing of the furnace body, ensure the authenticity of the furnace pressure and reduce energy loss.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a double-water-level annular furnace water seal, comprising an inner ring water seal groove, an inner ring water seal static knife, an inner ring water seal moving knife, an outer ring water seal groove, an outer ring water seal static knife, an outer ring water seal moving knife and a slag discharge device, wherein the inner ring water seal groove is supported by an inner ring column, an inner ring static knife bracket is also installed on the inner ring column, the inner ring static knife bracket supports the inner ring water seal static knife, the inner ring water seal moving knife is installed on the furnace bottom of the annular furnace through the inner ring moving knife bracket, the outer ring water seal groove is supported by an outer ring column, an outer ring static knife bracket is also installed on the outer ring column, the outer ring static knife bracket supports the outer ring water seal static knife, and the outer ring water seal moving knife is installed on the furnace bottom of the annular furnace through the outer ring moving knife bracket.

[0006] Preferably, the outer ring water seal groove and the outer ring column are connected via an outer ring water seal groove bracket, and the inner ring water seal groove and the inner ring column are connected via an inner ring water seal groove bracket.

[0007] Preferably, a scraper is installed on the outer ring water seal static knife, and the scraper is located in the outer ring water seal groove.

[0008] Preferably, a scraper is also installed on the inner ring water seal static knife, and the scraper is located in the inner ring water seal groove.

[0009] Preferably, the bottoms of the annular water seal groove and the inner annular water seal groove are both connected to slag discharge pipes, and the slag discharge device is connected to the slag discharge pipes.

[0010] Preferably, the outer ring water seal groove and the inner ring water seal groove are both provided with overflow ports, and the side walls of the outer ring water seal groove and the inner ring water seal groove are installed with overflow adjusting plates by screws, and the overflow adjusting plates are V-shaped, and halves of the two overflow adjusting plates are vertically fitted respectively, and the outer ring water seal groove and the inner ring water seal groove, and the other halves of the two overflow adjusting plates are installed and connected with overflow pipes, and the outlet end of the overflow pipe extends into the slag discharge pipe.

[0011] The beneficial effects of the utility model are:

[0012] In order to solve the problems of poor sealing and slag discharge of the annular furnace body, the present invention effectively forms the sealing of the annular furnace body through double water level sealing and overflow slag discharge device, improves the authenticity of furnace pressure, reduces heat loss, lowers the temperature of the furnace bottom steel structure, and ensures the safety and stability of the annular furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the outer ring water seal static knife and the inner ring water seal static knife after installing the scraper in the utility model;

[0015] Figure 3 The utility model is a schematic diagram of a structure in which overflow ports are added to both the outer ring water seal groove and the inner ring water seal groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] When implementing: Figure 1-3As shown, a double-water-level annular furnace water seal comprises an inner ring water seal groove 7, an inner ring water seal static knife 5, an inner ring water seal moving knife 3, an outer ring water seal groove 6, an outer ring water seal static knife 4, an outer ring water seal moving knife 2 and a slag discharge device 17. The inner ring water seal groove 7 is supported by an inner ring column 13, and an inner ring static knife bracket 11 is also installed on the inner ring column 13. The inner ring static knife bracket 11 supports the inner ring water seal static knife 5. The inner ring water seal moving knife 3 is installed on the furnace bottom 1 of the annular furnace through the inner ring moving knife bracket 9. The outer ring water seal groove 6 is supported by an outer ring column 12, and an outer ring static knife bracket 10 is also installed on the outer ring column 12. The outer ring static knife bracket 10 supports the outer ring water seal static knife 4. The outer ring water seal moving knife 2 is installed on the furnace bottom 1 of the annular furnace through the outer ring moving knife bracket 8, forming a double water level water seal between the inner ring and the outer ring of the annular furnace, thereby ensuring that the annular furnace body is sealed reliably. Because the blanks at the bottom of the annular furnace need to rotate during the heating process, a dynamic and static combined sealing form is adopted.

[0018] Since iron oxide scale will be produced during the heating process of the blank, after long-term production, the iron oxide scale will continue to accumulate and eventually enter the inner ring water seal groove 7 and the outer ring water seal groove 6 through the annular gap between the dynamic and static seals. Taking the slag discharge problem into consideration, a group of scrapers 20 are newly added to the inner ring water seal static knife 5 and the outer ring water seal static knife 4. The dynamic knife rotates with the furnace bottom, and the scraper 20 continuously scrapes the iron oxide scale into the slag discharge pipe 19. The slag discharge pipe 19 is opened regularly to discharge slag, thereby ensuring that the sealing performance of the double water level annular furnace water seal is reliable and good for a long time.

[0019] At the same time, overflow regulating plates that can adjust the water level height of the inner and outer ring water seal grooves are added to the inner and outer ring overflow ports. The water levels of the inner and outer ring water seal grooves can be adjusted separately according to the production process requirements. The device is simple, flexible and reliable. By taking the above measures, the annular furnace body seal is effectively formed, the authenticity of the furnace pressure is improved, the heat loss is reduced, the temperature of the furnace bottom steel structure is reduced, and the safe and stable operation of the annular furnace is guaranteed. Specifically: the outer ring water seal groove 6 and the inner ring water seal groove 7 are both provided with overflow ports 16, and the side walls of the outer ring water seal groove 6 and the inner ring water seal groove 7 are both installed with overflow regulating plates by screws. The overflow regulating plates are V-shaped, and the halves of the two overflow regulating plates are respectively vertically fitted, the outer ring water seal groove 6 and the inner ring water seal groove 7, and the other halves of the two overflow regulating plates are installed and connected with overflow pipes 18, and the outlet end of the overflow pipe 18 extends to the slag discharge pipe 19.

[0020] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double water level annular furnace water seal, characterized in that: The invention comprises an inner ring water seal groove (7), an inner ring water seal static knife (5), an inner ring water seal moving knife (3), an outer ring water seal groove (6), an outer ring water seal static knife (4), an outer ring water seal moving knife (2) and a slag discharge device (17). The inner ring water seal groove (7) is supported by an inner ring column (13). An inner ring static knife bracket (11) is also mounted on the inner ring column (13). The inner ring static knife bracket (11) supports the inner ring water seal static knife (5). The inner ring water seal moving knife (3) is mounted on the furnace bottom (1) of the annular furnace via the inner ring moving knife bracket (9). The outer ring water seal groove (6) is supported by an outer ring column (12). An outer ring static knife bracket (10) is also mounted on the outer ring column (12). The outer ring static knife bracket (10) supports the outer ring water seal static knife (4). The outer ring water seal moving knife (2) is mounted on the furnace bottom (1) of the annular furnace via the outer ring moving knife bracket (8).

2. The double water level annular furnace water seal according to claim 1 is characterized in that: The outer ring water seal groove (6) and the outer ring column (12) are connected via an outer ring water seal groove bracket (14), and the inner ring water seal groove (7) and the inner ring column (13) are connected via an inner ring water seal groove bracket (15).

3. The double water level annular furnace water seal according to claim 1 is characterized in that: A scraper (20) is mounted on the outer ring water seal static knife (4), and the scraper (20) is located in the outer ring water seal groove (6).

4. The double water level annular furnace water seal according to claim 1 is characterized in that: A scraper (20) is also mounted on the inner ring water seal static knife (5), and the scraper (20) is located in the inner ring water seal groove (7).

5. The double water level annular furnace water seal according to claim 1 is characterized in that: The bottoms of the outer ring water seal groove (6) and the inner ring water seal groove (7) are both connected to a slag discharge pipe (19), and the slag discharge device (17) is connected to the slag discharge pipe (19).

6. The double water level annular furnace water seal according to claim 5, characterized in that: The outer ring water seal groove (6) and the inner ring water seal groove (7) are both provided with overflow ports (16). Overflow adjustment plates are installed on the side walls of the outer ring water seal groove (6) and the inner ring water seal groove (7) by screws. The overflow adjustment plates are V-shaped. One half of the two overflow adjustment plates are vertically attached to the outer ring water seal groove (6) and the inner ring water seal groove (7). The other half of the two overflow adjustment plates are installed and connected to overflow pipes (18). The outlet end of the overflow pipe (18) extends into the slag discharge pipe (19).

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