Furnace flue gas purification and heat energy recovery device

Abstract

The utility model relates to the technical field of furnace flue gas, in particular to a furnace flue gas purification and heat energy recovery device, which comprises a water tank and a filter screen, a pump body is mounted at the top of the water tank, a shell is mounted at the top of the water tank above the pump body, and a motor is mounted at the top of the water tank on one side of the pump body. An insertion hole is formed in the side face of the shell, the filter screen is inserted into the shell from the insertion hole, a heat exchange pipe is installed in the water tank, a fixing rod is movably installed on the water tank, blades are installed on the outer side of the section, extending into the water tank, of the fixing rod in an annular array mode, and two stirring frames are symmetrically welded to the outer side of the portion, on one side of the blades, of the fixing rod. The flue gas heat exchange device has the advantages that water in the water tank is mixed in the flue gas conveying and heat exchange process, so that the water temperature is uniform.

Description

Technical Field

[0001] This utility model relates to the field of furnace and kiln flue gas technology, specifically a furnace and kiln flue gas purification and heat recovery device. Background Technology

[0002] Furnace flue gas refers to the waste gas generated during combustion or heating, which contains gases, solid particulate matter, and organic compounds. This flue gas may contain harmful substances that can harm the environment and human health.

[0003] Direct emission of flue gas from furnaces and kilns can pollute the environment, as it contains harmful substances such as particulate matter and grease. These pollutants can have adverse effects on the atmosphere and the surrounding environment. At the same time, the heat contained in the flue gas is wasted during emission and raises the temperature of the surrounding environment. Utility Model Content

[0004] The purpose of this utility model is to provide a furnace flue gas purification and heat recovery device, which has the advantage of mixing the water in the water tank during the heat exchange process of conveying flue gas to make the water temperature uniform, thus solving the problems of environmental pollution and heat waste caused by the emission of furnace flue gas.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a furnace flue gas purification and heat recovery device, comprising a water tank and a filter screen. A pump body is installed on the top of the water tank, and a housing is installed on the top of the water tank above the pump body. A motor is installed on the top of the water tank on one side of the pump body. An insertion hole is provided on the side of the housing, and the filter screen is inserted into the housing through the insertion hole. A heat exchange tube is installed inside the water tank. A fixed rod is movably installed on the water tank. A section of the fixed rod extending into the water tank has blades installed in a circular array on its outer side. Two stirring frames are symmetrically welded to the outer side of the fixed rod on one side of the blades.

[0006] When using the furnace flue gas purification and heat recovery device in this technical solution, the fixing frame is fixed to the bearing structure using bolts or other tools through the fixing holes of the fixing frame. The fixing frame fixes the position of the water tank. The connecting pipe is connected to the pipeline for conveying furnace flue gas. The furnace flue gas enters the shell from the connecting pipe. The filter screen inside the shell adsorbs impurities in the flue gas. The motor drives the drive rod to rotate through the transmission structure. The drive rod drives the turbine inside the pump body to rotate, generating centrifugal force. The pump body draws air from the shell through the suction pipe and then delivers the air to the heat exchange tube through the exhaust pipe. Cold water enters the water tank from the inlet pipe. The high-temperature flue gas inside the heat exchange tube heats the cold water inside the water tank. When the drive rod rotates, it drives the fixing rod to rotate through the belt. The fixing rod drives the paddle and the stirring frame to rotate. When the paddle rotates, it pushes the water inside the water tank to move. The stirring frame mixes the water inside the water tank. The gas inside the heat exchange tube is discharged from the exhaust pipe at the bottom. The water inside the water tank is discharged from the outlet pipe.

[0007] Preferably, a bracket is welded to the front side of the shell, and the bottom of the bracket is fixedly connected to the top of the water tank. The bracket secures the shell to the top of the water tank.

[0008] Preferably, a connecting pipe is embedded in the top of the shell, a drive rod is movably mounted on the pump body, and a motor transmission structure is fixedly connected to the drive rod. An air intake pipe is installed on the top of the pump body, with its top extending into the shell from the bottom. An air outlet pipe is installed at the bottom of the pump body, with its bottom extending into the water tank from the top and fixedly connected to the heat exchange tube. The connecting pipe connects to a pipeline for conveying furnace flue gas. The furnace flue gas enters the shell through the connecting pipe. The motor drives the drive rod to rotate via the transmission structure. The drive rod drives the turbine inside the pump body to rotate, generating centrifugal force. The pump body draws air from inside the shell through the air intake pipe and then delivers the air to the heat exchange tube through the air outlet pipe.

[0009] Preferably, the drive rod is movably connected to the fixed rod via a belt. When the drive rod rotates, it can drive the fixed rod to rotate via the belt.

[0010] Preferably, an exhaust pipe is embedded in the bottom of the water tank, and one end of the exhaust pipe extending into the water tank is fixedly connected to the heat exchange tube. Gas inside the heat exchange tube can be discharged through the exhaust pipe.

[0011] Preferably, an inlet pipe and an outlet pipe are embedded in the side of the water tank away from the fixing rod, and an observation window is embedded in the rear side of the water tank. Cold water enters the water tank through the inlet pipe, and the water inside the water tank is discharged through the outlet pipe. The liquid level inside the water tank can be observed through the observation window.

[0012] Preferably, a fixing frame is welded to the front side of the water tank, and the fixing frame has fixing holes arranged in a rectangular array. The fixing frame is fixed to the load-bearing structure using bolts or other tools through the fixing holes, thus securing the water tank in place.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a heat exchange tube, impeller, and stirring frame. A motor drives a drive rod to rotate via a transmission structure. The drive rod rotates a turbine inside the pump body, generating centrifugal force. The pump body draws air from inside the casing through an intake pipe and then delivers the air to the heat exchange tube through an outlet pipe. Cold water enters the water tank through the inlet pipe. The high-temperature flue gas inside the heat exchange tube heats the cold water in the tank. As the drive rod rotates, it drives a fixed rod via a belt. The fixed rod then rotates the impeller and stirring frame. The rotating impeller moves the water inside the tank, and the stirring frame mixes the water. Gas inside the heat exchange tube is discharged through the exhaust pipe at the bottom, and water inside the tank is discharged through the outlet pipe. This achieves the effect of mixing the water inside the tank during the flue gas heat exchange process, resulting in a uniform water temperature. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0016] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0017] Figure 3 This is a schematic diagram of the shell and filter structure of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the water tank of this utility model.

[0019] In the diagram: 1. Water tank; 2. Observation window; 3. Motor; 4. Pump body; 5. Drive rod; 6. Housing; 7. Bracket; 8. Filter screen; 9. Belt; 10. Exhaust pipe; 11. Fixing hole; 12. Fixing frame; 13. Connecting pipe; 14. Water inlet pipe; 15. Water outlet pipe; 16. Insertion hole; 17. Heat exchanger pipe; 18. Suction pipe; 19. Exhaust pipe; 20. Stirring rack; 21. Paddle; 22. Fixing rod. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual proportions. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figures 1-4As shown, this utility model proposes a furnace flue gas purification and heat recovery device, including a water tank 1 and a filter screen 8. A pump body 4 is installed on the top of the water tank 1, and a housing 6 is installed on the top of the water tank 1 above the pump body 4. A bracket 7 is welded to the front side of the housing 6, and the bottom of the bracket 7 is fixedly connected to the top of the water tank 1. A motor 3 is installed on the top of the water tank 1 on one side of the pump body 4. A connecting pipe 13 is embedded in the top of the housing 6. A drive rod 5 is movably installed on the pump body 4. The transmission structure of the motor 3 is fixedly connected to the drive rod 5. An air suction pipe 18 is installed on the top of the pump body 4, and the top of the air suction pipe 18 extends into the housing 6 from the bottom. An insertion hole 16 is opened on the side of the housing 6, and the filter screen 8 is inserted into the housing 6 through the insertion hole 16. A heat exchange pipe 17 is installed inside the water tank 1. A vent pipe 19 is installed at the bottom of the body 4. The bottom of the vent pipe 19 extends from the top of the water tank 1 and is fixedly connected to the heat exchange tube 17. An exhaust pipe 10 is embedded at the bottom of the water tank 1. One end of the exhaust pipe 10 extends into the water tank 1 and is fixedly connected to the heat exchange tube 17. A fixed rod 22 is movably installed in the water tank 1. A drive rod 5 is movably connected to the fixed rod 22 via a belt 9. A section of the fixed rod 22 extends into the water tank 1 and a paddle 21 is installed in a ring array on its outer side. Two stirring frames 20 are symmetrically welded to the outer side of the fixed rod 22 on one side of the paddle 21. A water inlet pipe 14 and a water outlet pipe 15 are embedded on the side of the water tank 1 away from the fixed rod 22. A fixed frame 12 is welded to the front of the water tank 1. The fixed frame 12 has fixed holes 11 in a rectangular array.

[0026] In this embodiment, the fixing frame 12 is fixed to the bearing structure using bolts or other tools through the fixing holes 11 of the fixing frame 12. The fixing frame 12 fixes the position of the water tank 1. The connecting pipe 13 is connected to the pipeline for conveying furnace flue gas. The furnace flue gas enters the interior of the housing 6 through the connecting pipe 13. The filter screen 8 inside the housing 6 adsorbs impurities in the flue gas. The motor 3 drives the drive rod 5 to rotate through the transmission structure. The drive rod 5 drives the turbine inside the pump body 4 to rotate, generating centrifugal force. The pump body 4 draws air from the interior of the housing 6 through the suction pipe 18 and then discharges it through the exhaust pipe 19. Air is delivered to heat exchange tube 17, and cold water enters the water tank 1 from inlet pipe 14. The high-temperature flue gas inside heat exchange tube 17 heats the cold water inside water tank 1. When drive rod 5 rotates, it drives fixed rod 22 to rotate via belt 9. Fixed rod 22 drives blade 21 and stirring frame 20 to rotate. When blade 21 rotates, it pushes the water inside water tank 1 to move. Stirring frame 20 mixes the water inside water tank 1. The cooled gas inside heat exchange tube 17 is discharged from exhaust pipe 10 at the bottom. The preheated water inside water tank 1 is discharged from outlet pipe 15.

[0027] Example 2

[0028] like Figures 1-4 As shown, the present invention proposes a furnace flue gas purification and heat recovery device. Compared with Embodiment 1, this embodiment further includes: an observation window 2, which is embedded in the rear side of the water tank 1.

[0029] In this embodiment, the water level inside the water tank 1 can be observed through the observation window 2.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A furnace flue gas purification and heat recovery device, comprising a water tank (1) and a filter screen (8), characterized in that: A pump body (4) is installed on the top of the water tank (1). A housing (6) is installed on the top of the water tank (1) above the pump body (4). A motor (3) is installed on the top of the water tank (1) on one side of the pump body (4). An insertion hole (16) is opened on the side of the housing (6). The filter screen (8) is inserted into the housing (6) through the insertion hole (16). A heat exchange tube (17) is installed inside the water tank (1). A fixed rod (22) is movably installed on the water tank (1). A section of the fixed rod (22) extends into the water tank (1) and a paddle (21) is installed in a ring array on the outer side. Two stirring racks (20) are symmetrically welded to the outer side of the fixed rod (22) on one side of the paddle (21).

2. The furnace flue gas purification and heat recovery device according to claim 1, characterized in that: A bracket (7) is welded to the front side of the shell (6), and the bottom of the bracket (7) is fixedly connected to the top of the water tank (1).

3. The furnace flue gas purification and heat recovery device according to claim 1, characterized in that: A connecting pipe (13) is embedded in the top of the housing (6), a drive rod (5) is movably installed on the pump body (4), the transmission structure of the motor (3) is fixedly connected to the drive rod (5), an air suction pipe (18) is installed on the top of the pump body (4), the top of the air suction pipe (18) extends into the interior of the housing (6) from the bottom, and an air outlet pipe (19) is installed on the bottom of the pump body (4), the bottom of the air outlet pipe (19) extends into the interior of the water tank (1) from the top and is fixedly connected to the heat exchange pipe (17).

4. The furnace flue gas purification and heat recovery device according to claim 3, characterized in that: The drive rod (5) is movably connected to the fixed rod (22) via a belt (9).

5. The furnace flue gas purification and heat recovery device according to claim 1, characterized in that: The bottom of the water tank (1) is fitted with an exhaust pipe (10), and one end of the exhaust pipe (10) that extends into the water tank (1) is fixedly connected to the heat exchange pipe (17).

6. The furnace flue gas purification and heat recovery device according to claim 1, characterized in that: The water tank (1) is fitted with an inlet pipe (14) and an outlet pipe (15) on the side away from the fixing rod (22), and an observation window (2) is fitted on the rear side of the water tank (1).

7. The furnace flue gas purification and heat recovery device according to claim 1, characterized in that: The water tank (1) has a fixing frame (12) welded to the front side, and the fixing frame (12) has fixing holes (11) in a rectangular array.

Images