Waste gas treatment device for recycling photovoltaic module by pyrolysis method

Abstract

The utility model discloses a waste gas treatment device for recycling a photovoltaic module by a pyrolysis method, and relates to the technical field of waste gas treatment. The output end of the air blower is fixedly connected with an air inlet pipe, the end, away from the air blower, of the air inlet pipe communicates with the combustion furnace, the lower side wall of the combustion furnace is fixedly connected with an air guide pipe, the end, away from the combustion furnace, of the air guide pipe is connected with a heat exchange mechanism, and a filter cylinder and a spraying cylinder are arranged on the outer side of the heat exchange mechanism. According to the device, waste gas is subjected to primary treatment through the combustion furnace, multi-stage treatment units such as the heat exchange mechanism, the filter cylinder, the spraying cylinder and the adsorption cylinder are utilized, a filter screen in the filter cylinder can capture solid particles in the waste gas, and a spraying mechanism in the spraying cylinder can remove harmful gas and dust in the waste gas. The two are combined for use, so that waste gas treatment is more thorough; therefore, harmful substances in the waste gas are thoroughly removed. The multi-stage treatment mode ensures the high efficiency and thoroughness of waste gas treatment, and effectively avoids the harm of the waste gas to the environment and human bodies.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field especially relates to a pyrogenic recovery photovoltaic module's waste gas treatment device. BACKGROUND

[0002] With the transformation of global energy structure and the rapid development of renewable energy, the photovoltaic industry has ushered in unprecedented development opportunities. However, the service life of photovoltaic modules is limited, and the treatment and recycling of a large number of waste photovoltaic modules have become increasingly prominent. Photovoltaic modules are mainly composed of glass substrate, silicon wafer, aluminum frame, junction box, EVA adhesive film and other parts. These materials contain rich recyclable resources such as aluminum, silicon, silver and other metal elements. Therefore, efficient and environmentally friendly recycling of waste photovoltaic modules not only helps to recycle resources, but also reduces the negative impact on the environment.

[0003] In the recycling technology of waste photovoltaic modules, pyrolysis as an important treatment method has gradually attracted attention in the industry. Pyrolysis decomposes organic matter in waste photovoltaic modules into gas and liquid through high temperature treatment, while inorganic matter is converted into solid. Through subsequent separation and purification process, high-purity organic matter and inorganic matter can be obtained. In the process of recycling photovoltaic modules by pyrolysis, a certain amount of tail gas will be generated. If these tail gases are directly discharged into the atmosphere without treatment, they will not only cause serious pollution to the environment, but also may harm human health. Therefore, the present application proposes a waste gas treatment device for recycling photovoltaic modules by pyrolysis to solve the above problems. SUMMARY

[0004] The utility model aims at providing a waste gas treatment device for recycling photovoltaic modules by pyrolysis, which solves the technical problems proposed in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a pyrogenic recovery photovoltaic module's waste gas treatment device, including combustion furnace, the outside of combustion furnace is provided with the air -blower, the output fixedly connected with air inlet pipe of air -blower, the one end away from air -blower of air inlet pipe is connected with combustion furnace, the downside wall of combustion furnace is fixedly connected with the air pipe, the one end away from combustion furnace of air pipe is connected with heat exchange mechanism, the outside of heat exchange mechanism is provided with filter cartridge and spray cartridge, be provided with connecting pipe no.

[0006] Preferably, the connecting pipe two and the connecting pipe one are connected to the filter cartridge, respectively, and the connecting pipe two and the connecting pipe one are located on the upper and lower sides of the filter screen one, respectively, the outside of the filter screen one is provided with a vibration mechanism, the vibration mechanism comprises a vibration motor, the vibration motor is fixed to the upper end of the filter cartridge, the output end of the vibration motor penetrates the upper side wall of the filter cartridge and is fixedly connected with a rotating rod, the lower end of the rotating rod is fixedly connected with a rotating frame, the outside of the filter screen one is fixedly connected with a moving ring, the upper end of the moving ring is fixedly connected with a lower vibration block, the lower end of the rotating frame is fixedly connected with an upper vibration block, and the upper vibration block is matched with the lower vibration block.

[0007] Preferably, the inside wall of the filter cartridge is fixedly connected with a fixed ring, a plurality of baffles are arranged below the fixed ring, the upper end of the baffle is fixedly connected with a sliding rod, the upper end of the sliding rod penetrates the fixed ring and is fixedly connected with the lower end of the moving ring, a supporting spring is sleeved on the sliding rod, and the upper and lower ends of the supporting spring are fixedly connected with the adjacent side walls of the moving ring and the fixed ring, respectively.

[0008] Preferably, the inside of the spray cartridge is provided with a filter screen two, the outside end of the filter screen two is fixedly connected with the inside wall of the spray cartridge, the filter screen two is funnel-shaped, and the connecting pipe two and the connecting pipe three are connected to the spray cartridge.

[0009] Preferably, the heat exchange mechanism comprises a heat exchange box, an inner side of the heat exchange box is provided with a heat exchange pipe, the heat exchange pipe is in a spiral type, the air guide pipe is communicated with the lower end of the heat exchange pipe through the lower side wall of the heat exchange box away from the combustion furnace, the connecting pipe is communicated with the upper end of the heat exchange pipe through the upper side wall of the heat exchange box away from the filter cartridge, the connecting pipe three is communicated with the heat exchange box through the upper side wall of the heat exchange box away from the spray cartridge, and the connecting pipe four is communicated with the heat exchange box through the lower side wall of the heat exchange box away from the adsorption cartridge.

[0010] Preferably, the lower end of the spray cartridge is fixedly connected with a water pipe, the water pipe is communicated with the spray cartridge, and a valve is arranged on the water pipe.

[0011] Compared with the related art, the waste gas treatment device for recycling photovoltaic modules by pyrolysis has the following beneficial effects:

[0012] 1. The waste gas treatment device for recycling photovoltaic modules by pyrolysis, which preliminarily processes waste gas through a combustion furnace and utilizes a heat exchange mechanism, a filter cartridge, a spray cartridge and an adsorption cartridge and other multi-stage processing units, so that the filter screen in the filter cartridge can capture solid particles in the waste gas, and the spraying mechanism in the spray cartridge can remove harmful gases and dust in the waste gas. The combination of the two makes the waste gas treatment more complete, and the harmful substances in the waste gas are completely removed. The multi-stage processing mode ensures the efficiency and completeness of the waste gas treatment, and effectively avoids the harm of waste gas to the environment and human bodies.

[0013] 2. The waste gas treatment device for recycling photovoltaic modules by pyrolysis, which is provided with a vibration mechanism in the filter cartridge, and the vibration motor drives the rotating rod and the rotating frame to vibrate the filter screen one, so as to effectively remove dust and particles attached to the filter screen one. The design can automatically clean the filter screen one, avoids the need for frequent manual cleaning, and prolongs the service life of the filter screen. The filter screen two arranged in the spray cartridge cleans the dust attached in the spraying process, and avoids the dust from directly entering the subsequent activated carbon adsorption plate to reduce the adsorption efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a heat exchange cylinder cross section three-dimensional structure schematic view of the utility model;

[0016] Figure 3 It is a filter barrel cross section three-dimensional structure schematic view of the utility model;

[0017] Figure 4The filter screen one position structure schematic view of the utility model shows;

[0018] Figure 5 For Figure 4 The local enlarged view of A in the middle part;

[0019] Figure 6 The spraying cylinder section structure schematic view of the utility model.

[0020] In the figure: 1, combustion furnace; 2, heat exchange mechanism; 3, filter cylinder; 4, spraying cylinder; 5, air blower; 6, air inlet pipe; 7, air guide pipe; 8, connecting pipe one; 9, connecting pipe two; 10, connecting pipe three; 11, connecting pipe four; 12, adsorption cylinder; 13, air outlet pipe; 14, heat exchange box; 15, heat exchange pipe; 16, vibration motor; 17, rotating rod; 18, rotating frame; 19, filter screen one; 20, moving ring; 21, lower vibration block; 22, upper vibration block; 23, fixed ring; 24, baffle; 25, sliding rod; 26, supporting spring; 27, submersible pump; 28, water supply pipe; 29, spraying head; 30, water pipe; 31, filter screen two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-6The utility model provides a technical scheme: a pyrogenic recovery photovoltaic module's waste gas treatment device, including combustion furnace 1, the outside of combustion furnace 1 is provided with the air blower 5, the output of air blower 5 is fixedly connected with the air inlet pipe 6, the one end away from air blower 5 of air inlet pipe 6 is connected with combustion furnace 1, the downside wall of combustion furnace 1 is fixedly connected with the air duct 7, the one end away from combustion furnace 1 of air duct 7 is connected with heat exchange mechanism 2, the outside of heat exchange mechanism 2 is provided with filter cartridge 3 and spray cylinder 4, is provided with connecting pipe no. 8 between heat exchange mechanism 2 and filter cartridge 3, is provided with connecting pipe no. 9 between filter cartridge 3 and spray cylinder 4, the right side end of connecting pipe no. 8 penetrates the lateral wall of filter cartridge 3 and is communicated with filter cartridge 3, and the left and right ends of connecting pipe no. 9 are communicated with filter cartridge 3 and spray cylinder 4 respectively, the lateral wall of spray cylinder 4 is fixedly connected with connecting pipe no. 10, and the one end away from spray cylinder 4 of connecting pipe no. 10 is connected with heat exchange mechanism 2, is provided with connecting pipe no. 11 on heat exchange mechanism 2, and the one end away from heat exchange mechanism 2 of connecting pipe no. 11 is connected with adsorption cylinder 12, a plurality of activated carbon adsorption plates are arranged in adsorption cylinder 12, the right side end of adsorption cylinder 12 is fixedly connected with the air outlet pipe 13, the inside of filter cartridge 3 is provided with filter screen no. 19, and the inside of spray cylinder 4 is provided with spray mechanism;

[0023] The connecting place of connecting pipe no. 9 and filter cartridge 3 and the connecting place of connecting pipe no. 8 and filter cartridge 3 are located on the upper and lower sides of filter screen no. 19 respectively, the outside of filter screen no. 19 is provided with vibration mechanism, and the vibration mechanism includes vibration motor 16, vibration motor 16 is fixed to the upper end of filter cartridge 3, the output of vibration motor 16 penetrates the upper lateral wall of filter cartridge 3 and is fixedly connected with rotating rod 17, the lower end of rotating rod 17 is fixedly connected with rotating frame 18, filter screen no. 19 is fixedly connected with moving ring 20 on the outside, the upper end of moving ring 20 is fixedly connected with lower vibration lug 21, the lower end of rotating frame 18 is fixedly connected with upper vibration lug 22, and upper vibration lug 22 is matched with lower vibration lug 21;

[0024] The inside wall of filter cartridge 3 is fixedly connected with fixed ring 23, a plurality of baffle plates 24 are arranged below fixed ring 23, the upper end of baffle plate 24 is fixedly connected with sliding rod 25, the upper end of sliding rod 25 penetrates fixed ring 23 and is fixedly connected with the lower end of moving ring 20, support spring 26 is sleeved on sliding rod 25, and the upper and lower ends of support spring 26 are fixedly connected with the adjacent lateral wall of moving ring 20 and fixed ring 23 respectively, rotating rod 17 and rotating frame 18 are driven by vibration motor 16, so that filter screen no. 19 vibrates, thereby effectively removing dust and particles attached to filter screen no. 19. The design can automatically clean filter screen no. 19, avoid the need for manual and frequent cleaning, and also prolong the service life of the filter screen;

[0025] A filter screen 2 31 is provided on the inner side of the spray cylinder 4. The outer end of the filter screen 2 31 is fixedly connected to the inner wall of the spray cylinder 4. The filter screen 2 31 is funnel-shaped. The connection points of the connecting pipe 2 9 and the connecting pipe 3 to the spray cylinder 4 are both located above the filter screen 2 31. Water enters the spray cylinder 4 through the connecting pipe 2 9. Under the action of the submersible pump 27, the water below the filter screen 2 31 is sprayed out from the spray head 29 through the water supply pipe 28 to spray the gas entering the spray cylinder 4.

[0026] The heat exchange mechanism 2 includes a heat exchange box 14, and a heat exchange tube 15 is provided inside the heat exchange box 14. The heat exchange tube 15 is spiral. The end of the gas guide pipe 7 away from the combustion furnace 1 extends out of the lower side wall of the heat exchange box 14 and is connected to the lower end of the heat exchange tube 15. The end of the connecting pipe away from the filter cylinder 3 passes through the upper side wall of the heat exchange box 14 and is connected to the upper end of the heat exchange tube 15. The end of the connecting pipe 3 10 away from the spray cylinder 4 passes through the upper side wall of the heat exchange box 14 and is connected to the heat exchange box 14. The end of the connecting pipe 4 11 away from the adsorption cylinder 12 passes through the lower side wall of the heat exchange box 14 and is connected to the heat exchange box 14. In use, the exhaust gas after spraying enters the heat exchange box 14 through the connecting pipe 3 10 and uses the high temperature exhaust gas in the spiral heat exchange tube 15 to exchange heat, thereby drying the exhaust gas after spraying and avoiding the high temperature gas from affecting the subsequent equipment.

[0027] A water pipe 30 is fixedly connected to the lower end of the spray cylinder 4. The water pipe 30 is connected to the spray cylinder 4 and a valve is installed on the water pipe 30. When it is necessary to replace the spray water in the spray cylinder 4, the valve is opened and the spray water can be replaced through the water pipe 30.

[0028] Working principle: During use, the input end of the blower 5 is connected to the exhaust equipment of the photovoltaic module pyrolysis treatment equipment. Under the action of the blower 5, the exhaust gas is introduced into the combustion furnace 1 through the air inlet pipe 6 for combustion treatment. The generated exhaust gas enters the filter cylinder 3 through the air guide pipe 7, heat exchange mechanism 2 and connecting pipe 1 8. After the exhaust gas enters the filter screen 19 for preliminary filtration, it enters the spray cylinder 4 through the connecting pipe 2 9. Under the action of the submersible pump 27, the water below the filter screen 2 31 is lowered and sprayed out from the spray head 29 through the water supply pipe 28 to spray the gas entering the spray cylinder 4. The treated exhaust gas enters the heat exchange box 14 through the connecting pipe 3 10. Heat exchange is carried out using the high temperature exhaust gas in the spiral heat exchange pipe 15, thereby drying the sprayed exhaust gas and avoiding the high temperature gas from affecting the subsequent equipment. The dried gas enters the adsorption cylinder 12 through the connecting pipe 4 11. After being adsorbed by the activated carbon adsorption plate, it is discharged from the outlet pipe 13.

Claims

1. A waste gas treatment device for pyrolysis recovery of photovoltaic modules, comprising a combustion furnace (1), characterized in that: A blower (5) is provided on the outside of the combustion furnace (1). An air inlet pipe (6) is fixedly connected to the output end of the blower (5). The end of the air inlet pipe (6) away from the blower (5) is connected to the combustion furnace (1). A guide pipe (7) is fixedly connected to the lower side wall of the combustion furnace (1). A heat exchange mechanism (2) is connected to the end of the guide pipe (7) away from the combustion furnace (1). A filter cylinder (3) and a spray cylinder (4) are provided on the outside of the heat exchange mechanism (2). A connecting pipe (8) is provided between the heat exchange mechanism (2) and the filter cylinder (3). A connecting pipe (9) is provided between the filter cylinder (3) and the spray cylinder (4). The right end of the connecting pipe (8) penetrates the side wall of the filter cylinder (3) and connects to the filter cylinder (4). The cylinder (3) is connected, and the left and right ends of the connecting pipe two (9) are connected to the filter cylinder (3) and the spray cylinder (4) respectively. The side wall of the spray cylinder (4) is fixedly connected to the connecting pipe three (10). The end of the connecting pipe three (10) away from the spray cylinder (4) is connected to the heat exchange mechanism (2). The heat exchange mechanism (2) is provided with the connecting pipe four (11). The end of the connecting pipe four (11) away from the heat exchange mechanism (2) is connected to the adsorption cylinder (12). The adsorption cylinder (12) is provided with several activated carbon adsorption plates. The right end of the adsorption cylinder (12) is fixedly connected to the air outlet pipe (13). The filter cylinder (3) is provided with the filter screen one (19) inside. The spray cylinder (4) is provided with the spray mechanism inside.

2. The waste gas treatment device for pyrolysis recovery of photovoltaic modules according to claim 1, characterized in that: The connection points of the second connecting pipe (9) and the filter cylinder (3) and the connection points of the first connecting pipe (8) and the filter cylinder (3) are located on the upper and lower sides of the first filter screen (19), respectively. A vibration mechanism is provided on the outer side of the first filter screen (19). The vibration mechanism includes a vibration motor (16). The vibration motor (16) is fixed at the upper end of the filter cylinder (3). The output end of the vibration motor (16) passes through the upper side wall of the filter cylinder (3) and is fixedly connected to a rotating rod (17). The lower end of the rotating rod (17) is fixedly connected to a rotating frame (18). A moving ring (20) is fixedly connected to the outer side of the first filter screen (19). The upper end of the moving ring (20) is fixedly connected to a lower vibration protrusion (21). The lower end of the rotating frame (18) is fixedly connected to an upper vibration protrusion (22). The upper vibration protrusion (22) and the lower vibration protrusion (21) are adapted to each other.

3. The waste gas treatment device for pyrolysis recovery of photovoltaic modules according to claim 2, characterized in that: A fixing ring (23) is fixedly connected to the inner wall of the filter cylinder (3). Several baffles (24) are provided below the fixing ring (23). A sliding rod (25) is fixedly connected to the upper end of the baffle (24). The upper end of the sliding rod (25) passes through the fixing ring (23) and is fixedly connected to the lower end of the moving ring (20). A support spring (26) is sleeved on the sliding rod (25). The upper and lower ends of the support spring (26) are fixedly connected to the adjacent side walls of the moving ring (20) and the fixing ring (23), respectively.

4. The waste gas treatment device for pyrolysis recovery of photovoltaic modules according to claim 1, characterized in that: A filter screen 2 (31) is provided on the inner side of the spray cylinder (4). The outer end of the filter screen 2 (31) is fixedly connected to the inner wall of the spray cylinder (4). The filter screen 2 (31) is funnel-shaped. The connection points of the connecting pipe 2 (9) and the connecting pipe 3 with the spray cylinder (4) are both located above the filter screen 2 (31).

5. The waste gas treatment device for pyrolysis recovery of photovoltaic modules according to claim 1, characterized in that: The heat exchange mechanism (2) includes a heat exchange box (14), and a heat exchange tube (15) is provided inside the heat exchange box (14). The heat exchange tube (15) is spiral-shaped. The end of the gas guide pipe (7) away from the combustion furnace (1) extends out of the lower side wall of the heat exchange box (14) and is connected to the lower end of the heat exchange tube (15). The end of the connecting pipe away from the filter cylinder (3) passes through the upper side wall of the heat exchange box (14) and is connected to the upper end of the heat exchange tube (15). The end of the connecting pipe three (10) away from the spray cylinder (4) passes through the upper side wall of the heat exchange box (14) and is connected to the heat exchange box (14). The end of the connecting pipe four (11) away from the adsorption cylinder (12) passes through the lower side wall of the heat exchange box (14) and is connected to the heat exchange box (14).

6. The waste gas treatment device for pyrolysis recovery of photovoltaic modules according to claim 1, characterized in that: The lower end of the spray cylinder (4) is fixedly connected to a water pipe (30), which is connected to the spray cylinder (4) and a valve is provided on the water pipe (30).

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