A waste heat recovery device for industrial exhaust gas

Abstract

This utility model provides a waste heat recovery device for industrial waste gas, including a filter tube, two filter screens, two push plates, and a heat dissipation pipe. The heat dissipation pipe is fixedly connected to one side of the filter tube. Two filter screens are installed inside the filter tube. A drive assembly is provided on the filter tube to push the two push plates to reciprocate and impact the two filter screens. A spring reciprocating assembly is provided between the two filter screens and the filter tube. The drive assembly drives the two push plates to reciprocate laterally. During this reciprocating motion, the two push plates sequentially push the two filter screens. The two filter screens vibrate at high frequency and low amplitude through the spring reciprocating assembly, causing a resonance detachment effect that dislodges accumulated dust from crevices that traditional scraping methods cannot reach. Compared to the hard friction cleaning of traditional metal dust removal blades, vibration dust removal uses non-contact vibration to act on the accumulated dust, eliminating the need for additional mechanical scraping structures and direct contact with heat exchange components, thus reducing equipment replacement and maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, and in particular to a waste heat recovery device for industrial waste gas. Background Technology

[0002] Industrial production generates a large amount of industrial waste gas, which is usually at a very high temperature. For example, the flue gas temperature of boilers and blast furnaces used in industrial production is generally two or three hundred degrees Celsius, and sometimes even higher. Through waste heat recovery devices, the waste heat of flue gas can be effectively recovered and utilized.

[0003] CN213375638U discloses a waste heat recovery device for industrial waste gas, relating to the field of industrial waste gas treatment technology. The device includes a filter tube with an annular water tank on one side. An air inlet pipe is fixedly connected to the side of the filter tube away from the annular water tank. The filter tube contains a coarse filter, a fine filter, an activated carbon filter, and a motor bracket. This waste heat recovery device for industrial waste gas uses a de-ashing motor to drive a first and a second de-ashing plate to rotate. The first and second de-ashing plates remove dust from the coarse and fine filter screens, respectively, achieving automatic de-ashing. The combined arrangement of the heat collection tube, the annular water tank heat-conducting rod, and the annular water tank allows for preliminary absorption of waste heat from the waste gas. The combined arrangement of the air outlet pipe, the heat collection mesh, the disc-shaped heat sink, and the annular heat sink further enhances the absorption of waste heat from the waste gas.

[0004] The aforementioned patent describes a method of removing dust by rotating a first and second dust removal plate driven by a dust removal motor. However, for fine dust, scraping is insufficient to reach the dust accumulation in the gaps between the filter screens, resulting in incomplete cleaning. When faced with sticky or clump-like dust, the scraping force alone is insufficient, easily leading to the phenomenon of scraping without removing the dust. Furthermore, the hard friction between the metal dust removal plate and the heat exchange components will exacerbate component wear and shorten their service life.

[0005] Therefore, it is necessary to provide a new waste heat recovery device for industrial waste gas to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a waste heat recovery device for industrial waste gas.

[0007] This utility model provides a waste heat recovery device for industrial waste gas, comprising a filter tube, two filter screens, two push plates, and a heat dissipation pipe. The heat dissipation pipe is fixedly connected to one side of the filter tube. Two filter screens are provided inside the filter tube. A drive assembly is provided on the filter tube to push the two push plates to reciprocate and impact the two filter screens. A spring reciprocating assembly is provided between the two filter screens and the filter tube. A heat absorption and heat dissipation module is provided inside the heat dissipation pipe. The drive assembly includes a transmission motor, multiple motor fixing parts, and a motor shaft. One end of the multiple motor fixing parts is located at the top of the outer surface of the filter tube, and the other end of the multiple motor fixing parts is fixedly connected to the transmission motor. The output end of the transmission motor is connected to one end of the motor shaft, and the other end of the motor shaft passes through the inside of the filter tube and is fixedly connected to the transmission disc. A transmission assembly is provided between the transmission disc and the two push plates.

[0008] Preferably, the transmission assembly includes a lever, a concave frame plate, two limiting sleeves, and two transmission plates. One end of the lever is located at the eccentric bottom of the transmission disc. The two limiting sleeves are located on the inner top wall of the filter tube. The two limiting sleeves are slidably connected to the two transmission plates respectively. The two transmission plates are fixedly connected to two push plates at their opposite ends. The concave frame plate is fixedly connected between the opposite ends of the two transmission plates. The concave frame plate is sleeved on the outer surface of the lever.

[0009] Preferably, the spring reciprocating assembly includes four spring plates, multiple springs, and multiple protective plates. Four spring grooves are opened on both sides of the inner wall of the filter tube. Two spring plates are provided on one end of each side of each filter screen. The other ends of the two spring plates pass through the interior of the two spring plates respectively. Two springs are fixedly connected to one end of each side of each spring plate. The other ends of the two springs are fixedly connected to the inner walls of the spring grooves on both sides. Four protective plates are provided on both sides of each filter screen.

[0010] Preferably, the heat absorption and heat dissipation module includes a heat collection pipe, multiple heat conduction rods, a water tank, an air outlet pipe, and multiple heat collection meshes. The heat collection pipe is provided on the inner wall of the heat dissipation pipe, and a water tank is embedded above the heat dissipation pipe. Multiple heat conduction rods are provided between the heat collection pipe and the water tank. Multiple heat collection meshes are provided on the inner wall of the heat collection pipe, and an air outlet pipe is provided at the center of the multiple heat collection meshes. The end of the air outlet pipe away from the multiple heat collection meshes extends to the outside of the heat dissipation pipe.

[0011] Preferably, the filter tube is provided with an air inlet pipe on the side away from the heat dissipation tube, the water tank is provided with a water inlet pipe at the top, and the water tank is provided with an outlet pipe at one end on the side, with the other end of the outlet pipe extending through to the outside of the heat dissipation tube.

[0012] Preferably, the filter tube is provided with two ash outlet pipes at the bottom.

[0013] Compared with related technologies, the waste heat recovery device for industrial waste gas provided by this utility model has the following beneficial effects:

[0014] The drive assembly drives two push plates to reciprocate laterally. As the two push plates reciprocate, they push the two filter screens in turn. The two filter screens vibrate at high frequency and low amplitude through the spring reciprocating assembly, which can cause the accumulated dust to resonate and detach. This shakes off the accumulated dust in the gaps that traditional scraping cannot reach. Compared with the hard friction cleaning of traditional metal dust removal blades, vibration dust removal uses non-contact vibration to act on the accumulated dust. There is no need to add an additional mechanical scraping structure and direct contact with heat exchange components, which reduces the cost of equipment replacement and maintenance. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a waste heat recovery device for industrial waste gas provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the structure of the spring reciprocating assembly.

[0017] Figure 3 for Figure 1 The diagram shows the structure of the driving component.

[0018] Figure 4 for Figure 1 The schematic diagram of the transmission assembly shown

[0019] Figure 5 for Figure 1 The schematic diagram of the heat absorption and heat dissipation module shown is as follows.

[0020] The diagram is labeled as follows: 1. Filter tube; 101. Air inlet pipe; 102. Motor fixing component; 103. Spring groove; 104. Ash outlet hole; 2. Heat dissipation pipe; 201. Water tank; 202. Water inlet pipe; 203. Water outlet pipe; 204. Heat conducting rod; 205. Air outlet pipe; 206. Heat collection mesh; 207. Heat collection tube; 3. Drive motor; 301. Motor shaft; 302. Drive disc; 303. Push plate; 304. Limiting sleeve plate; 305. Concave frame plate; 306. Toggle lever; 307. Drive plate; 4. Filter screen; 401. Protective plate; 402. Spring plate; 403. Spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1-5 ,in, Figure 1 A schematic diagram of a preferred embodiment of a waste heat recovery device for industrial waste gas provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the spring reciprocating assembly. Figure 3 for Figure 1The diagram shows the structure of the driving component. Figure 4 for Figure 1 The diagram shows the structure of E. Figure 5 for Figure 1 The diagram shows the structure of the heat absorption and dissipation module.

[0023] In the specific implementation process, such as Figure 1-5 As shown, the system includes a filter tube 1, two filter screens 4, two push plates 303, and a heat dissipation pipe 2. The heat dissipation pipe 2 is fixedly connected to one side of the filter tube 1. The filter tube 1 contains two filter screens 4. The filter tube 1 is equipped with a drive assembly for pushing the two push plates 303 to reciprocate and impact the two filter screens 4. A spring reciprocating assembly is provided between the two filter screens 4 and the filter tube 1. The heat dissipation pipe 2 contains a heat absorption and heat dissipation module. The drive assembly includes a transmission motor 3, multiple motor fixing parts 102, and a motor shaft 301. One end of the multiple motor fixing parts 102 is located at the top of the outer surface of the filter tube 1. The other end of the multiple motor fixing parts 102 is fixedly connected to the transmission motor 3. The output end of the transmission motor 3 is connected to one end of the motor shaft 301. The other end of the motor shaft 301 passes through the interior of the filter tube 1 and is fixedly connected to the transmission disc 302. A transmission assembly is provided between the transmission disc 302 and the two push plates 303.

[0024] In use, the industrial waste gas to be treated is discharged from the inlet pipe 101 into the filter pipe 1. The waste gas passes through two filter screens 4, which can filter out solid particles in the waste gas. At the same time, since the two filter screens 4 are made of activated carbon, they can also filter out colloidal particles and other small particles in the waste gas. The filtered gas enters the heat dissipation pipe 2, where the heat collector 207 absorbs the residual heat in the waste gas and heats the water inside the water tank 201 through multiple heat conduction rods 204. Then, the waste gas passes through multiple heat collectors 206 and the outlet pipe 205, and is finally discharged through the outlet pipe 205. The multiple heat collectors 206 and the outlet pipe 205 can absorb the heat in the waste gas and conduct this heat to the disc-shaped heat collector 207, thereby completing the absorption of residual heat in the waste gas.

[0025] In the specific implementation process, such as Figure 2-4As shown, the system includes a filter tube 1, two filter screens 4, two push plates 303, and a heat dissipation pipe 2. The heat dissipation pipe 2 is fixedly connected to one side of the filter tube 1. Two filter screens 4 are located inside the filter tube 1. A drive assembly is provided on the filter tube 1 to push the two push plates 303 to reciprocate against the two filter screens 4. A spring reciprocating assembly is provided between the two filter screens 4 and the filter tube 1. A heat absorption and dissipation module is located inside the heat dissipation pipe 2. The drive assembly includes a transmission motor 3, multiple motor fixing parts 102, and a motor shaft 301. One end of each motor fixing part 102 is located at the top of the outer surface of the filter tube 1, and the other end of each motor fixing part 102 is fixedly connected to the transmission motor 3. The output end of the transmission motor 3 is connected to one end of the motor shaft 301. The other end of 301 passes through the interior of the filter tube 1 and is fixedly connected to the transmission disc 302. A transmission assembly is provided between the transmission disc 302 and the two push plates 303. The spring reciprocating assembly includes four spring plates 402, multiple springs 403 and multiple protective plates 401. Four spring grooves 103 are opened on both sides of the inner wall of the filter tube 1. Two spring plates 402 are provided on one end of each side of each filter screen 4. The other ends of the two spring plates 402 pass through the interior of the two spring plates 402. Two springs 403 are fixedly connected to one end of each side of each spring plate 402. The other ends of the two springs 403 are fixedly connected to the inner walls of the spring grooves 103 on both sides. Four protective plates 401 are provided on both sides of each filter screen 4.

[0026] Four protective plates 401 are used to shield impurities in the exhaust gas and protect the spring 403.

[0027] In the specific implementation process, such as Figure 5 As shown, the heat absorption and dissipation module includes a heat collection pipe 207, multiple heat conduction rods 204, a water tank 201, an air outlet pipe 205, and multiple heat collection meshes 206. The heat collection pipe 207 is provided on the inner wall of the heat dissipation pipe 2, and the water tank 201 is embedded above the heat dissipation pipe 2. Multiple heat conduction rods 204 are provided between the heat collection pipe 207 and the water tank 201. Multiple heat collection meshes 206 are provided on the inner wall of the heat collection pipe 207. An air outlet pipe 205 is provided at the center of the multiple heat collection meshes 206. One end of the air outlet pipe 205 away from the multiple heat collection meshes 206 extends to the outside of the heat dissipation pipe 2. An air inlet pipe 101 is provided on the side of the filter pipe 1 away from the heat dissipation pipe 2. A water inlet pipe 202 is provided at the top of the water tank 201. One end of a water outlet pipe 203 is provided on the side of the water tank 201. The other end of the water outlet pipe 203 extends to the outside of the heat dissipation pipe 2. Two ash outlet pipes 104 are provided at the bottom of the filter pipe 1.

[0028] The working principle of this utility model is as follows: The starting transmission motor 3 drives the motor shaft 301 to drive the transmission disc 302 to rotate. The transmission disc 302 drives the lever 306 to push the concave frame plate 305 to move back and forth. The concave frame plate 305 drives the two push plates 303 to move back and forth laterally through the two transmission plates 307. The two push plates 303 push the two filter screens 4 to vibrate. When the filter screens 4 move laterally, they are squeezed by the two spring plates 402 to make the two springs 403 vibrate back and forth.

[0029] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A waste heat recovery device for industrial waste gas, characterized in that, It includes a filter tube (1), two filter screens (4), two push plates (303) and a heat sink (2). The heat sink (2) is fixedly connected to one side of the filter tube (1). The filter tube (1) is equipped with two filter screens (4) inside. The filter tube (1) is equipped with a drive assembly for pushing the two push plates (303) to reciprocate and impact the two filter screens (4). A spring reciprocating assembly is provided between the two filter screens (4) and the filter tube (1). The heat sink (2) is equipped with a heat absorption and heat dissipation module inside. The drive assembly includes a drive motor (3), multiple motor fixing parts (102), and a motor shaft (301). One end of the multiple motor fixing parts (102) is located at the top of the outer surface of the filter tube (1), and the other end of the multiple motor fixing parts (102) is fixedly connected to the drive motor (3). The output end of the drive motor (3) is connected to one end of the motor shaft (301), and the other end of the motor shaft (301) passes through the inside of the filter tube (1) and is fixedly connected to the drive disc (302). A transmission assembly is provided between the drive disc (302) and the two push plates (303).

2. The waste heat recovery device for industrial waste gas according to claim 1, characterized in that, The transmission assembly includes a lever (306), a concave frame plate (305), two limiting sleeves (304), and two transmission plates (307). One end of the lever (306) is located at the bottom eccentric position of the transmission disc (302). The two limiting sleeves (304) are located on the inner top wall of the filter tube (1). The two limiting sleeves (304) are slidably connected to the two transmission plates (307) respectively. The two transmission plates (307) are fixedly connected to two push plates (303) at one end away from each other. The concave frame plate (305) is fixedly connected between the two transmission plates (307) at the other end away from each other. The concave frame plate (305) is sleeved on the outer surface of the lever (306).

3. A waste heat recovery device for industrial waste gas according to claim 2, characterized in that, The spring reciprocating assembly includes four spring plates (402), multiple springs (403), and multiple protective plates (401). Four spring grooves (103) are opened on both sides of the inner wall of the filter tube (1). Two spring plates (402) are provided on one side of each filter screen (4). The other ends of the two spring plates (402) pass through the interior of the two spring plates (402). Two springs (403) are fixedly connected to one side of each spring plate (402). The other ends of the two springs (403) are fixedly connected to the inner walls of the two spring grooves (103). Four protective plates (401) are provided on both sides of each filter screen (4).

4. A waste heat recovery device for industrial waste gas according to claim 3, characterized in that, The heat absorption and heat dissipation module includes a heat collection pipe (207), multiple heat conduction rods (204), a water tank (201), an air outlet pipe (205), and multiple heat collection meshes (206). The heat collection pipe (207) is provided on the inner wall of the heat dissipation pipe (2). The water tank (201) is embedded above the heat dissipation pipe (2). Multiple heat conduction rods (204) are provided between the heat collection pipe (207) and the water tank (201). Multiple heat collection meshes (206) are provided on the inner wall of the heat collection pipe (207). An air outlet pipe (205) is provided at the center of the multiple heat collection meshes (206). The end of the air outlet pipe (205) away from the multiple heat collection meshes (206) extends to the outside of the heat dissipation pipe (2).

5. A waste heat recovery device for industrial waste gas according to claim 4, characterized in that, The filter tube (1) is provided with an air inlet pipe (101) on the side away from the heat dissipation pipe (2), the top of the water tank (201) is provided with a water inlet pipe (202), and the side of the water tank (201) is provided with one end of the water outlet pipe (203), and the other end of the water outlet pipe (203) extends to the outside of the heat dissipation pipe (2).

6. A waste heat recovery device for industrial waste gas according to claim 5, characterized in that, The filter tube (1) is equipped with two ash outlet tubes (104) at the bottom.

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