Flue gas denitration purification device for industrial furnace

Abstract

The utility model discloses a flue gas denitration purification device for industrial furnace, which comprises a filter box and a denitration box, the filter box is internally provided with a fixed frame, the fixed frame is internally provided with a filter plate, the front side of the filter plate is fixedly provided with a limiting disc, the limiting disc is internally provided with a gear rod, the gear rod is meshed with two rack rods, and the rack rods are connected with the denitration box. An inserting plate is arranged on the front side of the fixing frame, the denitration box is located on one side of the filtering box, a motor is fixedly arranged on the upper end face of the denitration box, one end of the motor is fixedly connected with a worm, the worm is in meshed connection with a worm gear, a positioning rod is fixedly connected to the middle of the worm gear, and three sets of stirring blades are arranged on the outer wall of the positioning rod. And a mounting box is fixedly mounted at the bottom of the denitration box, so that a filter plate can be quickly disassembled and cleaned, ammonia gas and flue gas can be fully mixed and fully purified, and the device has practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial furnace flue gas denitration equipment, in particular to a flue gas denitration purification device for industrial furnaces. Background Art

[0002] Industrial furnaces: Industrial furnaces can be divided into two categories according to the thermal system: one is the intermittent kiln, also known as the periodic kiln, and the second is the continuous kiln. During the use of industrial furnaces, a certain amount of smoke is often emitted due to combustion, and these exhaust fumes often contain too much nitrate. If they are not treated in time and are directly discharged into the air, it will cause highly corrosive acid rain to cause certain pollution to the surrounding environment.

[0003] The existing patent with publication number CN218608774U proposes a flue gas denitration and purification device for industrial furnaces. The device is provided with a bottom plate, and a reaction box and a purification box are installed on the top of the bottom plate. An oxygen generator is installed on the top of the reaction box, and an oxygen supply pipe leading into the reaction box is arranged on the left side of the oxygen generator. An air inlet is arranged on the left side of the reaction box, and a circulation baffle is arranged in the inner cavity. A delivery pipe is arranged between the reaction box and the purification box, and an exhaust port is arranged on the right side of the purification box. A first exhaust fan and a second exhaust fan are respectively arranged in the exhaust port and the delivery pipe. However, the device is not sufficient when adding oxides to mix the nitrates in the flue gas, and the nitrates in the flue gas cannot be fully removed, which reduces the purification treatment of the flue gas and the purification effect is not good. In view of the above problems, we propose an improved and upgraded flue gas denitration and purification device for industrial furnaces. Utility Model Content

[0004] The purpose of the utility model is to provide a flue gas denitration purification device for industrial furnaces to solve the problems raised in the above background technology.

[0005] In order to solve the above problems, the following technical solutions are provided:

[0006] A flue gas denitration purification device for an industrial furnace is designed, comprising a filter box and a denitration box, wherein a fixed frame is arranged inside the filter box, a filter plate is arranged inside the fixed frame, a limit disk is fixedly installed on the front side of the filter plate, a gear rod is arranged inside the limit disk and the gear rod is meshingly connected to two rack rods, a plug-in plate is arranged on the front side of the fixed frame, the denitration box is located on one side of the filter box and a motor is fixedly arranged on the upper end surface of the denitration box, a worm is fixedly connected to one end of the motor and the worm is meshingly connected to a worm wheel, a positioning rod is fixedly connected to the middle part of the worm wheel, three sets of stirring blades are arranged on the outer wall of the positioning rod, and a mounting box is fixedly installed on the bottom of the denitration box.

[0007] Furthermore, an air inlet pipe is introduced into one side of the outer wall of the filter box, a water tank is arranged at the rear side of the filter box, a connecting water pipe is arranged inside the water tank, and one end of the connecting water pipe is arranged inside the filter box.

[0008] Furthermore, a slide groove is provided inside the fixed frame, sliders are provided on both sides of the outer wall of the filter plate and the sliders are slidably connected to the slide groove, a notch is provided inside the limit plate, one end of the gear rod passes through the plug-in plate and the extending end is fixedly connected to a threaded knob.

[0009] Furthermore, the gear rod and the rack rod are both arranged inside the limit plate, one end of the two rack rods is slidably connected to the slot and the extended end is clamped on the upper and lower ends of the plug board, and a plug rod is arranged on the rear side of the plug board and one end of the plug rod is connected to the fixed frame.

[0010] Furthermore, a first filter screen and a second filter screen are respectively arranged inside the filter box, and the first filter screen and the second filter screen are respectively located above and below the connecting water pipe. A connecting pipe is connected inside the filter box, and one end of the connecting pipe is fixedly connected inside the installation box.

[0011] Furthermore, the worm and worm wheel are both rotatably installed inside the fixed frame, the outer wall of the positioning rod is rotatably installed on the upper end of the denitrification box, the outer wall of the positioning rod is provided with a stirring bracket below the stirring blade, the outer wall of the denitrification box is fixedly provided with a guide pipe, and the upper end surface of the denitrification box is provided with four outlet pipes, and the outer wall of the outlet pipe is provided with an electric control valve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model device is provided with a fixed frame, a filter plate, a slider, a plug-in plate, a threaded knob, a gear rod, a rack rod, a limit plate and other components. The threaded knob is turned to drive the gear rod to mesh with the two sets of rack rods to rotate, so that one end of the rack rod slides on the limit plate and is misaligned with the upper and lower ends of the plug-in plate, and then the plug-in plate is pulled out of the fixed frame through the plug rod, and then the filter plate is slid out of the slide groove inside the fixed frame through the slider, and the filter plate is quickly disassembled to clean the dust and impurities on the surface, so as to avoid the problem that the dust and impurities on the filter plate are blocked and affect the filtration, which is conducive to the filter box to stably filter the flue gas.

[0014] 2. The utility model device is provided with components such as a motor, a worm, a worm wheel, a positioning rod, a fixing frame, a stirring blade, a stirring bracket and the like. The worm is driven by a driving motor to rotate, so that the worm drives the positioning rod in the middle of the worm wheel to rotate, and then the positioning rod simultaneously drives three groups of stirring blades and the stirring bracket to fully stir the ammonia and the flue gas to make them contact, thereby accelerating the denitration efficiency, and then the purified flue gas flows into the air through the exhaust pipe, which is beneficial to fully denitrify and purify the filtered flue gas and improve the purification efficiency.

[0015] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a flue gas denitration purification device for industrial furnaces of the utility model;

[0018] Figure 2 This is a rear structural schematic diagram of a flue gas denitration purification device for an industrial furnace of the utility model;

[0019] Figure 3 for Figure 1 Schematic diagram of the internal cross-sectional structure;

[0020] Figure 4 for Figure 3 Schematic diagram of local split structure;

[0021] Figure 5 for Figure 3 Schematic diagram of local split structure;

[0022] Figure 6 for Figure 5 Schematic diagram of the partially enlarged split structure.

[0023] In the figure: 1. filter box; 2. denitrification box; 3. outlet pipe; 4. motor; 5. inlet pipe; 6. plug-in board; 7. connecting pipe; 8. installation box; 9. fixing frame; 10. water tank; 11. connecting water pipe; 12. guide pipe; 13. fixing frame; 14. first filter screen; 15. second filter screen; 16. worm; 17. worm gear; 18. positioning rod; 19. stirring blade; 20. stirring bracket; 21. slider; 22. slide; 23. filter plate; 24. limit plate; 25. plug rod; 26. threaded knob; 27. gear rod; 28. rack rod. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 - Figure 6 As shown, the present embodiment provides a design of a flue gas denitration purification device for an industrial furnace, comprising a filter box 1 and a denitration box 2, wherein a fixed frame 13 is arranged inside the filter box 1, a filter plate 23 is arranged inside the fixed frame 13, a limit plate 24 is fixedly installed on the front side of the filter plate 23, a gear rod 27 is arranged inside the limit plate 24 and the gear rod 27 is meshingly connected to two rack rods 28, a plug-in board 6 is arranged on the front side of the fixed frame 13, the denitration box 2 is located on one side of the filter box 1 and a motor 4 is fixedly arranged on the upper end surface of the denitration box 2, a worm 16 is fixedly connected to one end of the motor 4 and the worm 16 is meshingly connected to a worm wheel 17, a positioning rod 18 is fixedly connected to the middle of the worm wheel 17, three sets of stirring blades 19 are arranged on the outer wall of the positioning rod 18, and a mounting box 8 is fixedly installed on the bottom of the denitration box 2.

[0026] Preferably, one side of the outer wall of the filter box 1 enters the air inlet pipe 5, and a water tank 10 is arranged on the rear side of the filter box 1. A connecting water pipe 11 is arranged inside the water tank 10 and one end of the connecting water pipe 11 is arranged inside the filter box 1, so as to clean the dust in the smoke. A slide groove 22 is provided inside the fixed frame 13, and sliders 21 are provided on both sides of the outer wall of the filter plate 23 and the sliders 21 are slidably connected to the slide groove 22. A notch is provided inside the limit plate 24, and one end of the gear rod 27 passes through the plug-in plate 6 and the extending end is fixedly connected with a threaded knob 26, so as to facilitate the quick disassembly of the filter plate 23 for cleaning.

[0027] Preferably, the gear rod 27 and the rack rod 28 are both arranged inside the limit plate 24, one end of the two rack rods 28 is slidably connected to the notch and the extended end is clamped on the upper and lower ends of the plug-in board 6, a plug rod 25 is arranged on the rear side of the plug-in board 6 and one end of the plug rod 25 is connected to the fixed frame 13, so that the rack rod 28 can be disassembled from the plug-in board 6 by dislocation, and the first filter screen 14 and the second filter screen 15 are respectively arranged inside the filter box 1, and the first filter screen 14 and the second filter screen 15 are respectively located above and below the connecting water pipe 11, and the filter box 1 is connected to the connecting pipe 7 and One end of the connecting pipe 7 is fixedly connected to the inside of the installation box 8, so as to facilitate the flow of filtered flue gas into the denitrification box 2. The worm 16 and the worm wheel 17 are both rotatably installed in the fixed frame 9. The outer wall of the positioning rod 18 is rotatably installed on the upper end of the denitrification box 2. The outer wall of the positioning rod 18 is provided with a stirring bracket 20 below the stirring blade 19. The outer wall of the denitrification box 2 is fixedly provided with a guide pipe 12 and the upper end surface of the denitrification box 2 is provided with four outlet pipes 3 and the outer wall of the outlet pipe 3 is provided with an electric control valve, so as to facilitate the full mixing and stirring of ammonia and filtered flue gas so as to make them fully contact.

[0028] The use principle and use process of the utility model are as follows: the furnace smoke enters from the air inlet pipe 5 on the filter box 1, the dust in the smoke inside the filter box 1 is filtered by the connecting water pipe 11 on the water tank 10, the dust impurities in the smoke are filtered by the first filter screen 14 and the filter plate 23, the gear rod 27 is driven to mesh with the two sets of rack rods 28 by rotating the threaded knob 26, so that one end of the rack rod 28 slides on the limit plate 24 and is displaced from the upper and lower ends 6 of the plug-in plate, and then the plug-in plate 6 is pulled out of the fixed frame 13 through the plug rod 25, and then the filter plate 23 is slid into the slide groove 22 inside the fixed frame 13 through the slider 21 The filter plate 23 is quickly disassembled to clean the dust and impurities on the surface. The cleaned flue gas passes through the second filter screen 15 and enters the bottom from the inside of the filter box 1. The connecting pipe 7 is used to make it flow to the inside of the installation box 8. By opening the solenoid valve, ammonia is added from the inside of the guide pipe 12 to mix with the filtered flue gas. The worm 16 is driven by the driving motor 4 to rotate, so that the worm 16 drives the positioning rod 18 in the middle of the worm gear 17 to rotate, and then the positioning rod 18 simultaneously drives three groups of stirring blades 19 and the stirring bracket 20 to fully stir the ammonia and the flue gas to make them contact, thereby accelerating the desulfurization efficiency, and then the purified flue gas flows into the air through the outlet pipe 3.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A flue gas denitration purification device for industrial furnaces, characterized in that: The invention comprises a filter box (1) and a denitration box (2). The filter box (1) is provided with a fixed frame (13) inside. The fixed frame (13) is provided with a filter plate (23) inside. A limit plate (24) is fixedly installed on the front side of the filter plate (23). A gear rod (27) is provided inside the limit plate (24). The gear rod (27) is meshingly connected to two rack rods (28). A plug-in board (6) is provided on the front side of the fixed frame (13). The denitration box (2) is located on one side of the filter box (1). A motor (4) is fixedly provided on the upper end surface of the denitration box (2). A worm (16) is fixedly connected to one end of the motor (4). The worm (16) is meshingly connected to a worm wheel (17). A positioning rod (18) is fixedly connected to the middle part of the worm wheel (17). Three groups of stirring blades (19) are provided on the outer wall of the positioning rod (18). A mounting box (8) is fixedly installed on the bottom of the denitration box (2).

2. The flue gas denitration purification device for industrial furnaces according to claim 1, characterized in that: One side of the outer wall of the filter box (1) enters the air inlet pipe (5), and a water box (10) is arranged at the rear side of the filter box (1). A connecting water pipe (11) is arranged inside the water box (10), and one end of the connecting water pipe (11) is arranged inside the filter box (1).

3. The flue gas denitration purification device for industrial furnaces according to claim 1, characterized in that: A slide groove (22) is provided inside the fixing frame (13), sliders (21) are provided on both sides of the outer wall of the filter plate (23), and the sliders (21) are slidably connected to the slide groove (22), a notch is provided inside the limit plate (24), one end of the gear rod (27) passes through the plug-in plate (6) and the extended end is fixedly connected to a threaded knob (26).

4. The flue gas denitration purification device for industrial furnaces according to claim 1, characterized in that: The gear rod (27) and the rack rod (28) are both arranged inside the limit plate (24); one end of the two rack rods (28) is slidably connected to the notch and the extended ends are clamped on the upper and lower ends of the plug board (6); the plug board (6) is provided with an insertion rod (25) at the rear side and one end of the insertion rod (25) is connected to the fixed frame (13).

5. The flue gas denitration purification device for industrial furnaces according to claim 1, characterized in that: A first filter screen (14) and a second filter screen (15) are respectively arranged inside the filter box (1), and the first filter screen (14) and the second filter screen (15) are respectively located above and below the connecting water pipe (11). A connecting pipe (7) is connected inside the filter box (1), and one end of the connecting pipe (7) is fixedly connected to the inside of the installation box (8).

6. The flue gas denitration purification device for industrial furnaces according to claim 1, characterized in that: The worm (16) and the worm wheel (17) are both rotatably mounted inside the fixed frame (9); the outer wall of the positioning rod (18) is rotatably mounted on the upper end of the denitration box (2); the outer wall of the positioning rod (18) is provided with a stirring bracket (20) below the stirring blade (19); the outer wall of the denitration box (2) is fixedly provided with a guide pipe (12); the upper end surface of the denitration box (2) is provided with four outlet pipes (3); and the outer wall of the outlet pipe (3) is provided with an electric control valve.

Images