Denitration equipment for steel billet heating furnace

Abstract

The utility model provides denitration equipment for a steel billet heating furnace, and relates to the technical field of heating furnaces, the denitration equipment comprises an equipment frame, mounting frames, connecting frames, a placing frame, a connecting shaft, a connecting block, a threaded rod and a connecting sleeve, the equipment frame is internally provided with three groups of mounting frames, and the connecting frames are symmetrically arranged in the three groups of mounting frames; a placing frame is installed between the two sets of connecting frames, strip-shaped grooves are formed in the connecting frames, connecting shafts are installed in the strip-shaped grooves, and connecting blocks are rotationally connected to the connecting shafts. Through the arrangement of the mounting frame, the connecting frame, the connecting shaft, the connecting block, the threaded rod and the connecting sleeve, the connecting block rotates on the connecting shaft to drive the threaded rod and the connecting sleeve to move in the strip-shaped groove, the connecting sleeve is rotated, the connecting sleeve moves and extends outside the threaded rod, and the connecting sleeve is perpendicular to the placing frame through rotation of the connecting block; the bottom of the connecting sleeve is propped against the placing frame below, so that the placing frame is supported, and the catalyst is convenient to replace and place.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to denitration equipment for a steel billet heating furnace. Background Art

[0002] There are two main types of flue gas denitrification technologies: dry method (selective catalytic reduction flue gas denitrification, selective non-catalytic reduction denitrification) and wet method. Compared with wet flue gas denitrification technology, the main advantages of dry flue gas denitrification technology are: low basic investment, simple equipment and process, high efficiency of NOX removal, no wastewater and waste treatment, and not easy to cause secondary pollution.

[0003] The flue gas discharged during the use of the billet heating furnace contains a large amount of nitrogen oxides, which need to be treated with denitrification. Generally, denitrification equipment is used to mix the flue gas with ammonia, and then the denitrification treatment is delayed through a catalyst. However, it is inconvenient to place and replace the catalyst inside the equipment. Therefore, a denitrification equipment for a billet heating furnace is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a denitration device for a steel billet heating furnace, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a denitrification equipment for a steel billet heating furnace, comprising: an equipment frame, an installation frame, a connecting frame, a placement frame, a connecting shaft, a connecting block, a threaded rod and a connecting sleeve, three groups of installation frames are installed inside the equipment frame, connecting frames are symmetrically arranged in the three groups of installation frames, a placement frame is installed between two groups of connecting frames, a strip groove is arranged inside the connecting frame, a connecting shaft is installed in the strip groove, a connecting block is rotatably connected to the connecting shaft, a threaded rod is installed on the connecting block, and a connecting sleeve is threadedly connected to the threaded rod.

[0006] As a further technical solution of the utility model, the three groups of installation frames are all provided with sliding grooves adapted to the connecting frames, a through groove is provided at the middle position of the placement frame, and a threaded hole adapted to the threaded rod is provided inside the connecting sleeve.

[0007] As a further technical solution of the utility model, a smoke inlet pipe is installed at the top of the equipment frame, and a support frame is installed near the bottom of the equipment frame, and a connecting pipe is installed on the smoke inlet pipe.

[0008] As a further technical solution of the utility model, the top end of the connecting pipe extends to the inside of the flue gas inlet pipe, and an ammonia injection grid is installed on the top end of the connecting pipe, and the ammonia injection grid is located at one end inside the flue gas inlet pipe.

[0009] As a further technical solution of the utility model, three groups of guide plates are installed inside the smoke inlet pipe, and one end of the three groups of guide plates is close to the other end of the smoke inlet pipe.

[0010] As a further technical solution of the utility model, the other end of the connecting pipe is connected to the ammonia storage tank, and a discharge hopper is installed at the bottom of the equipment frame.

[0011] The utility model provides a denitration device for a steel billet heating furnace, which has the following beneficial effects compared with the prior art:

[0012] The present invention discloses a denitrification equipment for a billet heating furnace, which comprises an installation frame, a connecting frame, a connecting shaft, a connecting block, a threaded rod and a connecting sleeve. The connecting block rotates on the connecting shaft to drive the threaded rod and the connecting sleeve to move in the strip groove. The connecting sleeve is rotated to move and extend outside the threaded rod. The connecting sleeve is rotated through the connecting block to be perpendicular to the placement frame, so that the bottom of the connecting sleeve is in contact with the placement frame below, and the placement frame is supported to facilitate the replacement and placement of the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a denitration device for a steel billet heating furnace;

[0014] Figure 2 This is a schematic diagram of the internal structure of a flue gas inlet pipe of a denitration device for a steel billet heating furnace;

[0015] Figure 3 This is a schematic diagram of the internal structure of a device frame of a denitration device for a steel billet heating furnace;

[0016] Figure 4 A bottom view of a connection frame structure of a denitration device for a steel billet heating furnace;

[0017] Figure 5 This is a side view of the internal structure of a connection frame of a denitrification equipment for a steel billet heating furnace.

[0018] In the figure: 1. support frame; 2. equipment frame; 3. flue gas inlet pipe; 4. connecting pipe; 5. discharge hopper; 6. ammonia spray grid; 7. guide plate; 8. installation frame; 9. connecting frame; 10. placement frame; 11. connecting shaft; 12. connecting block; 13. threaded rod; 14. connecting sleeve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides a technical solution for a denitration device for a billet heating furnace, comprising: an equipment frame 2, an installation frame 8, a connecting frame 9, a placement frame 10, a connecting shaft 11, a connecting block 12, a threaded rod 13 and a connecting sleeve 14. Three groups of installation frames 8 are installed inside the equipment frame 2, and a frame door is installed on the equipment frame 2. The three groups of installation frames 8 are symmetrically provided with connecting frames 9. A placement frame 10 is installed between two groups of connecting frames 9. The placement frame 10 is used to place a catalyst. A strip groove is provided inside the connecting frame 9, and a connecting shaft 11 is installed in the strip groove. A connecting block 12 is rotatably connected to the connecting shaft 11, and a threaded rod 13 is installed on the connecting block 12. A connecting sleeve 14 is threadedly connected to the threaded rod 13. The placement frame 10 is pulled, and the connecting frame 9 slides in the installation frame 8, and the placement frame 10 slides out of the installation frame 8.

[0021] like Figure 3 and Figure 4 As shown, the three groups of installation frames 8 are all provided with sliding grooves compatible with the connecting frames 9, a through groove is provided at the middle position of the placement frame 10, and a threaded hole compatible with the threaded rod 13 is provided inside the connecting sleeve 14. The connecting block 12 is rotated outside the connecting shaft 11, so that the threaded rod 13 and the connecting sleeve 14 in the strip groove are perpendicular to the placement frame 10, and the connecting sleeve 14 is rotated. The connecting sleeve 14 moves and extends on the threaded rod 13, and the bottom of the connecting sleeve 14 abuts against other placement frames 10, and the bottom of the connecting sleeve 14 abuts against the support frame 1, and the placement frame 10 is pulled out for support, so as to facilitate the replacement and placement of the catalyst in the placement frame 10.

[0022] like Figure 1 and Figure 2 As shown, a flue gas inlet pipe 3 is installed at the top of the equipment frame 2, one end of the flue gas inlet pipe 3 is connected to the exhaust pipe of the heating furnace, and the other end is connected to the equipment frame 2, and a support frame 1 is installed near the bottom of the equipment frame 2, a connecting pipe 4 is installed on the flue gas inlet pipe 3, the top of the connecting pipe 4 extends to the inside of the flue gas inlet pipe 3, and an ammonia injection grid 6 is installed on the top of the connecting pipe 4, the ammonia injection grid 6 is located at one end of the inside of the flue gas inlet pipe 3, three groups of guide plates 7 are installed inside the flue gas inlet pipe 3, one end of the three groups of guide plates 7 is close to the other end of the flue gas inlet pipe 3, the other end of the connecting pipe 4 is connected to the ammonia storage tank, and a discharge hopper 5 is installed at the bottom of the equipment frame 2.

[0023] The working principle of the utility model is as follows: the ammonia spraying grid 6 sprays ammonia and mixes it with the flue gas discharged from the heating furnace, and the flue gas mixed with ammonia flows into the interior of the equipment frame 2 through the guide plate 7, and then denitrification treatment is carried out through the catalyst. When the catalyst inside the equipment frame 2 needs to be replaced, the placement frame 10 is pulled, and the connecting frame 9 slides outward in the installation frame 8. At the same time, the connecting block 12 rotates on the connecting shaft 11, so that the threaded rod 13 and the connecting sleeve 14 are perpendicular to the placement frame 10, and the connecting sleeve 14 is rotated. The connecting sleeve 14 rotates and extends outside the threaded rod 13, and the bottom of the connecting sleeve 14 abuts against the placement frame 10 below, and the bottom connecting sleeve 14 abuts against the support frame 1, so that the placement frame 10 is supported, which is convenient for replacing the catalyst.

[0024] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A denitration equipment for a steel billet heating furnace, characterized in that: include: A device frame (2), an installation frame (8), a connection frame (9), a placement frame (10), a connection shaft (11), a connection block (12), a threaded rod (13) and a connection sleeve (14); three groups of installation frames (8) are installed inside the device frame (2); connection frames (9) are symmetrically arranged inside the three groups of installation frames (8); a placement frame (10) is installed between two groups of connection frames (9); a strip groove is arranged inside the connection frame (9); a connection shaft (11) is installed in the strip groove; a connection block (12) is rotatably connected to the connection shaft (11); a threaded rod (13) is installed on the connection block (12); and a connection sleeve (14) is threadedly connected to the threaded rod (13).

2. The denitration equipment for a steel billet heating furnace according to claim 1, characterized in that: The three groups of installation frames (8) are all provided with sliding grooves that match the connection frames (9), a through groove is provided at the middle position of the placement frame (10), and a threaded hole that matches the threaded rod (13) is provided inside the connection sleeve (14).

3. The denitration equipment for a steel billet heating furnace according to claim 1, characterized in that: A smoke inlet pipe (3) is installed at the top of the equipment frame (2), and a support frame (1) is installed near the bottom of the equipment frame (2), and a connecting pipe (4) is installed on the smoke inlet pipe (3).

4. The denitration equipment for a steel billet heating furnace according to claim 3, characterized in that: The top end of the connecting pipe (4) extends to the interior of the flue gas inlet pipe (3), and an ammonia injection grid (6) is installed at the top end of the connecting pipe (4), wherein the ammonia injection grid (6) is located at one end inside the flue gas inlet pipe (3).

5. The denitration equipment for a steel billet heating furnace according to claim 4, characterized in that: Three groups of guide plates (7) are installed inside the smoke inlet pipe (3), and one end of the three groups of guide plates (7) is close to the other end of the smoke inlet pipe (3).

6. The denitration equipment for a steel billet heating furnace according to claim 5, characterized in that: The other end of the connecting pipe (4) is connected to the ammonia storage tank, and a discharge hopper (5) is installed at the bottom of the equipment frame (2).

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