Flue gas treatment device for heat accumulating type heating furnace

Abstract

The utility model relates to the technical field of flue gas treatment equipment, in particular to a flue gas treatment device for a heat accumulating type heating furnace, which comprises a support frame, the top of the support frame is fixedly connected with a collecting shell, the bottoms of two sides of the collecting shell are communicated and fixed with drain valves, and the top of the collecting shell is provided with a treatment mechanism. According to the device disclosed by the utility model, the treatment mechanism is arranged at the top of the collection shell, a three-way pipe is used for conveniently conveying filtrate into the two corresponding movable shells, and a gas conveying pipe is used for conveniently conveying flue gas into the movable shells at the corresponding positions through round holes; the flue gas is filtered for the first time by utilizing a filtering liquid in a movable shell in a fixed shell I, the flue gas subjected to the first-time filtering is conveyed into a corresponding movable shell in a fixed shell II through a conveying pipe, and the waste gas is filtered for the second time by utilizing a filtering liquid in a movable shell in the fixed shell II; and particulate matters and harmful gases in the flue gas can be adsorbed by the filtrate, so that the effect of filtering the flue gas is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment equipment, in particular to a flue gas treatment device for a regenerative heating furnace. Background Technique

[0002] A regenerative heating furnace is an energy-efficient industrial furnace that preheats air or gas through a regenerator or regenerative burner to heat workpieces. This furnace type is applicable not only to various types of heating furnaces but also to high-temperature heat treatment furnaces. The essence of a regenerative heating furnace is a combination of a highly efficient regenerative heat exchanger and a conventional heating furnace, mainly composed of a heating furnace body, a regenerator, a commutation system, and fuel, air supply, and smoke exhaust systems. The regenerative heating furnace has many advantages, including a more uniform furnace temperature distribution, which significantly improves the heating quality and product qualification rate. In addition, since the regenerative heating furnace can preheat various fuels, including light oil, heavy oil, natural gas, liquefied petroleum gas, etc., especially for low-calorific-value blast furnace gas and producer gas, it has a good preheating and combustion-supporting effect, so it can greatly reduce fuel consumption. Moreover, the harmful gases contained in the flue gas discharged from the regenerative heating furnace are less than those in general flue gas, and most of the flue gas is particulate matter and a small amount of nitrogen oxides. However, although the harmful components contained in the flue gas generated by the regenerative heating furnace are less, with the increase in emissions, it will still cause pollution to the surrounding environment and affect the health of the staff around the regenerative heating furnace. Content of the Utility Model

[0003] The purpose of the utility model is to provide a flue gas treatment device for a regenerative heating furnace to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] A flue gas treatment device for a regenerative heating furnace includes a support frame. The top of the support frame is fixedly connected with a collection shell, and drain valves are fixedly communicated at the bottoms of both sides of the collection shell. A treatment mechanism is arranged on the top of the collection shell, and two stirring mechanisms are arranged in a supporting manner on the treatment mechanism.

[0006] Furthermore, the processing mechanism includes a first fixed shell and a second fixed shell. The bottoms of the first fixed shell and the second fixed shell are both fixedly connected to the top of the collection shell. At both ends of the bottom of the first fixed shell, rectangular notches one are opened, and at both ends of the bottom of the second fixed shell, rectangular notches two are opened. Inside the first fixed shell and the second fixed shell, two moving shells are slidably connected, and the two moving shells are in contact. At the bottom of one end of the moving shell, a round hole is opened. At the bottom of one side of the first fixed shell, an air supply pipe is fixedly connected and communicated. At the top of the first fixed shell, a conveying pipe is fixedly connected and communicated, and one end of the conveying pipe is fixedly connected and communicated with the bottom of one side of the second fixed shell. At the top of the second fixed shell, an exhaust pipe is fixedly connected and communicated. At the top of the first fixed shell and the second fixed shell, a three-way pipe is provided, and the bottom ends of both ends of the three-way pipe are fixedly connected and communicated with the tops of the first fixed shell and the second fixed shell respectively.

[0007] Preferably, the length of the first fixed shell is the same as that of the second fixed shell, and the width of the first fixed shell is the same as that of the second fixed shell. The length of the first fixed shell is the same as that of the collection shell.

[0008] Preferably, at the bottoms of both inner side walls of the moving shell, scraping plates are fixedly connected, and one side of the scraping plate is wedge-shaped. The length of the scraping plate is the same as the length inside the moving shell.

[0009] Preferably, on the other side of the first fixed shell, a first guiding hole is opened, and on the other side of the second fixed shell, a second guiding hole is opened. Between the first fixed shell and the second fixed shell, two rectangular frames are provided, and at both ends of both sides of the rectangular frame, guiding blocks are fixedly connected. The first guiding hole and the second guiding hole are respectively slidably connected with the guiding blocks at the corresponding positions. One end of the guiding block is fixedly connected to the moving shell at the corresponding position.

[0010] Preferably, at the bottom of the two rectangular frames, a rectangular shell is provided, and both sides of the rectangular shell are respectively fixedly connected to the first fixed shell and the second fixed shell. On one inner side wall of the rectangular shell, a first motor is fixedly connected, and the output end of the first motor is fixedly connected with a screw rod. The outer side wall of the screw rod is in screw connection with a U-shaped plate, and the U-shaped plate is slidably connected inside the rectangular shell. Both ends of the U-shaped plate are respectively fixedly connected to the bottom of the rectangular frame at the corresponding positions.

[0011] Furthermore, the stirring mechanism includes a second motor. One end of the second motor is fixedly connected to one inner side wall of the rectangular frame at the corresponding position. On both sides of the second motor, stirring frames are provided. One end of the stirring frame is rotatably connected to one inner side wall of the moving shell at the corresponding position, and the other end of the stirring frame passes through the side wall of the moving shell at the corresponding position and is sleeved and fixed with a second bevel gear. The output end of the second motor is sleeved and fixed with a first bevel gear, and the first bevel gear meshes with the two second bevel gears.

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

[0013] 1. By arranging a processing mechanism at the top of the collection shell, using a three-way pipe to facilitate the delivery of the filtrate into the interiors of the corresponding two moving shells, using an air delivery pipe to convey the flue gas through the round holes into the interiors of the corresponding moving shells, and then using the filtrate in the moving shell inside the first fixed shell to filter the flue gas for the first time. The flue gas after the first filtration is conveyed through a delivery pipe to the interior of the corresponding moving shell in the second fixed shell, and then using the filtrate in the moving shell inside the second fixed shell to filter the waste gas for the second time. The filtrate can adsorb particulate matter and harmful gases in the flue gas, achieving the effect of filtering the flue gas. And through the second filtration, the filtering effect on the flue gas is improved. By starting the first motor, the rapid replacement of the moving shell can be realized, and it is convenient to push the used filtrate into the interior of the collection shell, making the process of replacing the filtrate simpler and more convenient, and improving the processing efficiency of the flue gas;

[0014] 2. By arranging two stirring mechanisms on the processing mechanism, and starting the second motor, the second motor drives the first bevel gear and two second bevel gears to rotate, causing the stirring frame to rotate. The rotating stirring frame is convenient for stirring the filtrate inside the moving shell, thereby dispersing the large air bubbles formed when the flue gas enters the filtrate, enabling the flue gas to fully contact with the filtrate, and further improving the filtering effect of the processing mechanism on the flue gas. Description of the Drawings

[0015] Figure 1 is the schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is the schematic diagram of the positional relationship between the collection shell and the drain valve of the present utility model;

[0017] Figure 3 is the schematic diagram of the structure of the processing mechanism of the present utility model;

[0018] Figure 4 is the schematic diagram of the positional relationship between the first fixed shell and the delivery pipe of the present utility model;

[0019] Figure 5 is the schematic diagram of the positional relationship between the moving shell and the stirring mechanism of the present utility model;

[0020] Figure 6 is the schematic diagram of the positional relationship between the rectangular shell and the C-shaped plate of the present utility model;

[0021] Figure 7 is the schematic diagram of the structure of the stirring mechanism of the present utility model.

[0022] In the figure: 100, support frame; 110, collection shell; 120, drain valve; 200, treatment mechanism; 210, first fixed shell; 211, first guiding hole; 220, second fixed shell; 221, second rectangular notch; 222, second guiding hole; 230, air supply pipe; 240, conveying pipe; 250, exhaust pipe; 260, tee; 270, moving shell; 271, round hole; 273, scraping plate; 280, rectangular shell; 290, first motor; 291, screw; 292, C-shaped plate; 293, rectangular frame; 294, guiding block; 300, stirring mechanism; 310, second motor; 320, first bevel gear; 330, second bevel gear; 340, stirring frame. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Embodiment 1

[0025] Please refer to Figures 1-7 , in the embodiment of the present invention, a flue gas treatment device for a regenerative heating furnace includes a support frame 100. A collection shell 110 is fixedly connected to the top of the support frame 100, and drain valves 120 are fixedly connected and communicated at the bottoms of both sides of the collection shell 110. A treatment mechanism 200 is arranged on the top of the collection shell 110, and two stirring mechanisms 300 are arranged in a supporting manner on the treatment mechanism 200.

[0026] Specifically, by placing the flue gas treatment device for the regenerative heating furnace at an appropriate position, the treatment mechanism 200 is used to facilitate the treatment of flue gas, and the stirring mechanism 300 is used to improve the treatment effect of the treatment mechanism 200 on flue gas. After the treatment mechanism 200 finishes treating the waste gas, the collection shell 110 is used to facilitate the collection of the waste liquid treated by the treatment mechanism 200, and the two drain valves 120 are used to facilitate the discharge of the waste liquid, making the use more convenient.

[0027] Such as Figures 3-6As shown, in this embodiment, the processing mechanism 200 includes a first fixed housing 210 and a second fixed housing 220. The bottoms of the first fixed housing 210 and the second fixed housing 220 are both fixedly connected to the top of the collection housing 110. Rectangular notches one are formed at both ends of the bottom of the first fixed housing 210, and rectangular notches two 221 are formed at both ends of the bottom of the second fixed housing 220. Two moving housings 270 are slidably connected inside the first fixed housing 210 and the second fixed housing 220, and the two moving housings 270 are in contact. A round hole 271 is formed at the bottom of one end of the moving housing 270. An air supply pipe 230 is fixedly connected and communicated at the bottom of one side of the first fixed housing 210. A delivery pipe 240 is fixedly connected and communicated at the top of the first fixed housing 210, and one end of the delivery pipe 240 is fixedly connected and communicated with the bottom of one side of the second fixed housing 220. An exhaust pipe 250 is fixedly connected and communicated at the top of the second fixed housing 220. A three-way pipe 260 is arranged at the top of the first fixed housing 210 and the second fixed housing 220, and the bottom ends of both ends of the three-way pipe 260 are fixedly connected and communicated with the tops of the first fixed housing 210 and the second fixed housing 220 respectively. The length of the first fixed housing 210 is the same as that of the second fixed housing 220, and the width of the first fixed housing 210 is the same as that of the second fixed housing 220. The length of the first fixed housing 210 is the same as that of the collection housing 110. Scraping plates 273 are fixedly connected to the bottoms of both inner side walls of the moving housing 270, and one side of the scraping plate 273 is wedge-shaped. The length of the scraping plate 273 is the same as the length inside the moving housing 270.

[0028] In this embodiment, the three-way pipe 260 is used to facilitate the delivery of the filtering liquid into the interiors of the corresponding two moving housings 270, and the air supply pipe 230 is used to facilitate the delivery of the flue gas through the round hole 271 to the interior of the corresponding moving housing 270 at the corresponding position. The filtering liquid in the moving housing 270 inside the first fixed housing 210 is used to filter the flue gas for the first time, and the flue gas after the first filtration is delivered through the delivery pipe 240 to the interior of the corresponding moving housing 270 in the second fixed housing 220. Then, the filtering liquid in the moving housing 270 inside the second fixed housing 220 is used to filter the waste gas for the second time. The filtering liquid can adsorb the particulate matter and harmful gases in the flue gas, achieving the effect of filtering the flue gas. And through the second filtration, the filtering effect on the flue gas is improved.

[0029] As Figures 3-6As shown in the figure, in this embodiment, a first guiding hole 211 is formed on the other side of the first fixed housing 210, and a second guiding hole 222 is formed on the other side of the second fixed housing 220. Two rectangular frames 293 are arranged between the first fixed housing 210 and the second fixed housing 220. Both ends of the two sides of the rectangular frame 293 are fixedly connected with guiding blocks 294. The first guiding hole 211 and the second guiding hole 222 are respectively slidably connected with the guiding blocks 294 at corresponding positions. One end of the guiding block 294 is fixedly connected with the moving housing 270 at the corresponding position. A rectangular housing 280 is arranged at the bottom of the two rectangular frames 293. The two sides of the rectangular housing 280 are respectively fixedly connected with the first fixed housing 210 and the second fixed housing 220. A first motor 290 is fixedly connected to an inner side wall of the rectangular housing 280. An output end of the first motor 290 is fixedly connected with a screw rod 291. A U-shaped plate 292 is screwed on the outer side wall of the screw rod 291. The U-shaped plate 292 is slidably connected with the inside of the rectangular housing 280. Two ends of the U-shaped plate 292 are respectively fixedly connected with the bottom of the rectangular frame 293 at the corresponding positions.

[0030] During specific implementation, by starting the first motor 290, the screw rod 291 is driven to rotate by the first motor 290, so that the U-shaped plate 292, the rectangular frame 293 and the guiding block 294 move. The moving guiding block 294 facilitates driving the four moving housings 270 to move. When the two moving housings 270 filled with the filtrate move to the position of the first rectangular notch or the second rectangular notch 221, the used filtrate will fall into the inside of the collecting housing 110 for collection. The movement of the moving housing 270 can drive the scraping plate 273 to move. The multiple scraping plates 273 facilitate scraping the inner bottom surfaces of the first fixed housing 210 and the second fixed housing 220, so as to facilitate scraping the precipitated particulate matters into the inside of the collecting housing 110. When the two moving housings 270 correspond to the first rectangular notch or the second rectangular notch 221, the other two moving housings 270 move to the initial positions of the original two moving housings 270, realizing the rapid replacement of the moving housings 270, and further facilitating the delivery of the filtrate into the other two moving housings 270, making the process of replacing the filtrate simpler and more convenient, and improving the treatment efficiency of the flue gas.

[0031] Embodiment Two

[0032] On the basis of Embodiment One, in order to avoid the large air bubbles formed by the flue gas entering the filtrate from affecting the use effect of the filtrate.

[0033] As Figure 7As shown, in this embodiment, the stirring mechanism 300 includes a second motor 310. One end of the second motor 310 is fixedly connected to an inner side wall of the rectangular frame 293 at the corresponding position. Stirring frames 340 are arranged on both sides of the second motor 310. One end of the stirring frame 340 is rotatably connected to an inner side wall of the moving housing 270 at the corresponding position. The other end of the stirring frame 340 passes through the side wall of the moving housing 270 at the corresponding position and is sleeved and fixed with a second bevel gear 330. The output end of the second motor 310 is sleeved and fixed with a first bevel gear 320, and the first bevel gear 320 meshes with the two second bevel gears 330.

[0034] During specific implementation, by starting the second motor 310, the first bevel gear 320 is driven to rotate by the second motor 310. Since the first bevel gear 320 meshes with the two second bevel gears 330, the second bevel gears 330 and the stirring frames 340 rotate. The rotating stirring frames 340 facilitate stirring the filtrate inside the moving housing 270, thereby breaking up the large air bubbles formed when the flue gas enters the filtrate, enabling the flue gas to fully contact the filtrate, and further improving the filtration effect of the treatment mechanism 200 on the flue gas.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flue gas treatment device for a regenerative heating furnace, comprising a support frame (100), characterized in that: The top of the support frame (100) is fixedly connected to a collecting shell (110), and the bottoms of both sides of the collecting shell (110) are connected and fixed with drainage valves (120). The top of the collecting shell (110) is provided with a processing mechanism (200), and the processing mechanism (200) is matched with two stirring mechanisms (300).

2. A flue gas treatment device for a regenerative heating furnace according to claim 1, characterized in that: The processing mechanism (200) comprises a fixed shell 1 (210) and a fixed shell 2 (220), the bottoms of the fixed shell 1 (210) and the fixed shell 2 (220) are both fixedly connected to the top of the collecting shell (110), both ends of the bottom of the fixed shell 1 (210) are provided with a rectangular notch 1, and both ends of the bottom of the fixed shell 2 (220) are provided with a rectangular notch 2 (221), the interiors of the fixed shell 1 (210) and the fixed shell 2 (220) are both slidably connected with two movable shells (270), and the two movable shells (270) are in contact, and the bottom of one end of the movable shell (270) is provided with a circular notch. A hole (271) is formed on the bottom of one side of the fixed shell (210), and an air supply pipe (230) is connected and fixed thereto; a delivery pipe (240) is connected and fixed to the top of the fixed shell (210), and one end of the delivery pipe (240) is connected and fixed to the bottom of one side of the fixed shell (220); an exhaust pipe (250) is connected and fixed to the top of the fixed shell (220); a three-way pipe (260) is provided on the tops of the fixed shell (210) and the fixed shell (220), and the bottoms of both ends of the three-way pipe (260) are respectively connected and fixed to the tops of the fixed shell (210) and the fixed shell (220).

3. A flue gas treatment device for a regenerative heating furnace according to claim 2, characterized in that: The length of the fixed shell one (210) is the same as the length of the fixed shell two (220), and the width of the fixed shell one (210) is the same as the width of the fixed shell two (220), and the length of the fixed shell one (210) is the same as the length of the collecting shell (110).

4. The flue gas treatment device for a regenerative heating furnace according to claim 2, characterized in that: The bottoms of the two inner side walls of the moving shell (270) are both fixedly connected with scraping plates (273), and one side of the scraping plates (273) is wedge-shaped. The length of the scraping plates (273) is the same as the length of the interior of the moving shell (270).

5. The flue gas treatment device for a regenerative heating furnace according to claim 2, characterized in that: A guide hole 1 (211) is provided on the other side of the fixed shell 1 (210), and a guide hole 2 (222) is provided on the other side of the fixed shell 2 (220). Two rectangular frames (293) are provided between the fixed shell 1 (210) and the fixed shell 2 (220), and guide blocks (294) are fixedly connected at both ends of the two sides of the rectangular frame (293). The guide hole 1 (211) and the guide hole 2 (222) are respectively slidably connected to the guide blocks (294) at corresponding positions, and one end of the guide block (294) is fixedly connected to the movable shell (270) at the corresponding position.

6. The flue gas treatment device for a regenerative heating furnace according to claim 5, characterized in that: At the bottom of the two rectangular frames (293), there is a rectangular shell (280). The two sides of the rectangular shell (280) are fixedly connected to the first fixed shell (210) and the second fixed shell (220) respectively. A first motor (290) is fixedly connected to an inner side wall of the rectangular shell (280). The output end of the first motor (290) is fixedly connected to a screw rod (291). A U-shaped plate (292) is screwed onto the outer side wall of the screw rod (291). The U-shaped plate (292) is slidably connected to the inside of the rectangular shell (280). The two ends of the U-shaped plate (292) are fixedly connected to the bottoms of the rectangular frames (293) at corresponding positions.

7. The flue gas treatment device for a regenerative heating furnace according to claim 1, characterized in that: The stirring mechanism (300) includes a second motor (310). One end of the second motor (310) is fixedly connected to an inner side wall of the rectangular frame (293) at the corresponding position. There are stirring frames (340) on both sides of the second motor (310). One end of the stirring frame (340) is rotatably connected to an inner side wall of the moving shell (270) at the corresponding position. The other end of the stirring frame (340) passes through the side wall of the moving shell (270) at the corresponding position and is sleeved and fixed with a second bevel gear (330). The output end of the second motor (310) is sleeved and fixed with a first bevel gear (320). The first bevel gear (320) meshes with the two second bevel gears (330).

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