Injection molding machine exhaust gas treatment device

Abstract

This utility model discloses an injection molding machine exhaust gas treatment device, including a base. The base is equipped with a spraying device, a pretreatment device, a cooling device, and a final treatment device. The pretreatment device includes a first connecting pipe, a support leg, a pretreatment shell, a second connecting pipe, and a filter plate. The pretreatment device is fixedly connected to the spraying device through the connecting pipe. The pretreatment shell is fixedly connected to the first connecting pipe, the second connecting pipe, and the support leg. The filter plate is movably connected to the pretreatment shell. The cooling device includes a pipe frame, a cooling pipe, a motor, fan blades, and a diversion pipe. The pipe frame is fixedly connected to the cooling pipe and the base. The motor is fixedly connected to the pipe frame and rotatably connected to the fan blades. The cooling device is fixedly connected to the final treatment device through the diversion pipe. This utility model solves the problems of exhaust gas drying, exhaust gas heat dissipation, and the single exhaust gas treatment method in traditional injection molding machine exhaust gas treatment devices.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, and more specifically, to an exhaust gas treatment device for injection molding machines. Background Technology

[0002] Injection molding machines are commonly used equipment for molding plastic products, but the processing of these machines produces exhaust gas, which can be harmful to human health and the environment if not treated in time. However, existing exhaust gas treatment devices for injection molding machines still have some shortcomings.

[0003] The primary problem is the lack of a drying and filtration device in the exhaust gas treatment unit. Traditional exhaust gas treatment units typically have a spray system to remove particulate matter from the exhaust gas. Without a drying device, moisture and particulate matter in the exhaust gas cannot be effectively intercepted. Moisture entering subsequent treatment units will reduce catalyst activity and cause equipment corrosion. Secondly, impurities such as oil mist and dust accumulate directly on the inner wall of the pipes, increasing system resistance and raising equipment energy consumption. Some gases in the exhaust gas react with water to produce liquids that corrode the equipment, reducing its service life.

[0004] More notably, the exhaust gas treatment equipment lacks a device to cool the gas. Uncooled exhaust gas directly enters the filtration or adsorption unit, which can lead to filter material melting, activated carbon spontaneous combustion, or catalyst sintering failure, shortening the equipment's lifespan. Secondly, in high-temperature environments, some harmful gases in the exhaust gas are difficult to capture by the adsorbent, reducing the working efficiency of the adsorption unit. Furthermore, high-temperature dust-laden gas can easily cause pipeline deformation or dust collector explosion, increasing safety hazards.

[0005] Of particular importance is the single working method of exhaust gas treatment equipment. The most common adsorption filtration method in exhaust gas treatment equipment is activated carbon adsorption filtration. After adsorbing exhaust gas for a certain period of time, activated carbon will reach a saturated state. At this state, the adsorption capacity of activated carbon decreases, and it is necessary to desorb and regenerate the activated carbon or replace it in order to restore the adsorption function of activated carbon. The replacement and desorption regeneration process takes a certain amount of time. If only activated carbon is used for treatment, the equipment will not be able to operate during this time, affecting work efficiency. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides an injection molding machine exhaust gas treatment device to solve the technical problems mentioned in the background art.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an injection molding machine exhaust gas treatment device, including a base, the base being equipped with a spraying device, a pretreatment device, a cooling device, and a final treatment device. The pretreatment device includes a first connecting pipe, a support leg, a pretreatment shell, a second connecting pipe, and a filter plate. The pretreatment device is fixedly connected to the spraying device via the connecting pipe. The pretreatment shell is fixedly connected to the first connecting pipe, the second connecting pipe, and the support leg. The support leg is fixedly connected to the base. The filter plate is movably connected to the pretreatment shell. The cooling device includes a pipe frame, a cooling pipe, a motor, a fan blade, and a diversion pipe. The pipe frame is fixedly connected to the cooling pipe and the base. The cooling pipe is fixedly connected to the second connecting pipe and the diversion pipe. The motor is fixedly connected to the pipe frame and rotatably connected to the fan blade. The cooling device is fixedly connected to the final treatment device via the diversion pipe.

[0009] The present invention is further configured such that the final treatment device includes an activated carbon box, a photo-oxidation shell, a diffuser plate, a catalytic lamp tube, an activated carbon plate, and an exhaust pipe. The activated carbon box and the photo-oxidation shell are both fixedly connected to the base. The activated carbon box and the photo-oxidation shell are both fixedly connected to the diverter pipe and the exhaust pipe. The diffuser plate, the catalytic lamp tube, and the activated carbon plate are all fixedly connected to the photo-oxidation shell.

[0010] The present invention is further configured such that the spraying device includes a spraying shell, a water storage tank, a water pump, and a nozzle. The spraying shell and the water storage tank are both fixedly connected to the base. The nozzle is fixedly connected to the spraying shell. The water pump is fixedly connected to the water storage tank and the nozzle through pipes respectively. The spraying shell is fixedly connected to the pretreatment shell through a first connecting pipe, thereby reducing the particulate matter content in the exhaust gas.

[0011] The present invention is further configured such that a groove is provided inside the pretreatment shell, and the filter plate is slidably connected to the groove, thereby improving the convenience of filter plate replacement.

[0012] The present invention is further provided that the pretreatment shell is provided with a door movably connected to the pretreatment shell and a handle fixedly connected to the door, thereby improving the convenience of filter plate replacement.

[0013] The present invention is further configured such that multiple filter plates, tanks and activated carbon boxes are provided, thereby improving the filtration effect.

[0014] The present invention is further configured such that both the diversion pipe and the exhaust pipe are equipped with multiple valves, thereby improving the sealing performance of the exhaust gas between the various devices. Beneficial effects

[0015] Compared with the prior art, the present invention provides the following beneficial effects:

[0016] 1. A drying and filtration device is formed by the cooperation of the first connecting pipe, support leg, pretreatment shell, second connecting pipe and filter plate. The exhaust gas enters the spray device and some of the particulate matter is removed by water. Then it enters the pretreatment shell. The gas passes through multiple filter plates to filter water vapor, oil and particulate matter in the exhaust gas, thus completing the drying and filtration of the exhaust gas. This reduces the gas humidity and particulate matter content, prevents acidic condensate from corroding the equipment, avoids catalyst blockage, reduces system resistance and extends the service life of the equipment.

[0017] 2. A set of exhaust gas cooling devices is composed of pipe frame, cooling pipe, motor, fan blades and diversion pipe. After the exhaust gas comes out of the drying device, it enters the diversion pipe along the cooling pipe. When the exhaust gas flows along the cooling pipe, the heat is transferred to the outer surface through heat conduction through the pipe wall. The outer wall of the cooling pipe is designed in a spiral shape to increase the heat dissipation area. Then, the heat is dissipated into the environment through forced ventilation by the fan, thus completing the cooling of the exhaust gas temperature.

[0018] 3. A multi-mode exhaust gas treatment device is formed by the activated carbon box, photo-oxidation shell, diffuser plate, catalytic lamp tube, activated carbon plate and exhaust pipe. After the activated carbon adsorbs exhaust gas for a certain period of time, it will reach a saturated state. At this state, the adsorption capacity of the activated carbon decreases, and it is necessary to desorb and regenerate the activated carbon or replace it in order to restore the adsorption function of the activated carbon. The replacement and desorption / regeneration process takes a certain amount of time. During the replacement or desorption / regeneration process, another exhaust gas treatment method is used to ensure that the whole equipment can operate continuously and improve work efficiency. Attached Figure Description

[0019] Figure 1 This is a diagram showing the overall structure of the injection molding machine exhaust gas treatment device in this utility model.

[0020] Figure 2 This is a cross-sectional view of the pretreatment device in this utility model;

[0021] Figure 3 This is a schematic diagram showing the connection between the cooling device, the second connecting pipe, and the diversion pipe in this utility model;

[0022] Figure 4 This is a cross-sectional view of the photo-oxidized outer shell of this utility model;

[0023] Figure 5 This is a cross-sectional view of the spraying device in this utility model.

[0024] In the diagram: 1. Base; 2. First connecting pipe; 3. Support leg; 4. Pretreatment shell; 5. Second connecting pipe; 6. Filter plate; 7. Pipe rack; 8. Cooling pipe; 9. Motor; 10. Fan blade; 11. Diverter pipe; 12. Activated carbon box; 13. Photo-oxidation shell; 14. Diffuser plate; 15. Catalytic lamp tube; 16. Activated carbon plate; 17. Exhaust pipe; 18. Spray shell; 19. Water storage tank; 20. Water pump; 21. Nozzle; 22. Tank; 23. Door; 24. Handle; 25. Valve. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0028] Please see Figures 1-5 An injection molding machine exhaust gas treatment device includes a base 1. The base 1 is equipped with a spraying device, a pretreatment device, a cooling device, and a final treatment device. The pretreatment device includes a first connecting pipe 2, a support leg 3, a pretreatment shell 4, a second connecting pipe 5, and a filter plate 6. The pretreatment device is fixedly connected to the spraying device through the connecting pipe 2. The pretreatment shell is fixedly connected to the first connecting pipe 2, the second connecting pipe 5, and the support leg 3. The support leg 3 is fixedly connected to the base 1. The filter plate 6 is movably connected to the pretreatment shell 4. The cooling device includes a pipe frame 7, a cooling pipe 8, a motor 9, a fan blade 10, and a diversion pipe 11. The pipe frame 7 is fixedly connected to the cooling pipe 8 and the base 1. The cooling pipe 8 is fixedly connected to the second connecting pipe 5 and the diversion pipe 11. The motor 9 is fixedly connected to the pipe frame 7 and rotatably connected to the fan blade 10. The cooling device is fixedly connected to the final treatment device through the diversion pipe 11.

[0029] In a further embodiment of this application, the final processing device includes an activated carbon box 12, a photo-oxidation shell 13, a diffuser plate 14, a catalytic lamp tube 15, an activated carbon plate 16, and an exhaust pipe 17. The activated carbon box 12 and the photo-oxidation shell 13 are both fixedly connected to the base 1. The activated carbon box 12 and the photo-oxidation shell 13 are both fixedly connected to the diversion pipe 11 and the exhaust pipe. The diffuser plate 14, the catalytic lamp tube 15, and the activated carbon plate 16 are all fixedly connected to the photo-oxidation shell 13.

[0030] In a further embodiment of this application, the spraying device includes a spray housing 18, a water storage tank 19, a water pump 20, and a nozzle 21. The spray housing 18 and the water storage tank 19 are both fixedly connected to the base 1. The nozzle 21 is fixedly connected to the spray housing 18. The water pump 20 is fixedly connected to the water storage tank 19 and the nozzle 21 respectively through pipes. The spray housing 18 is fixedly connected to the pretreatment shell 4 through the first connecting pipe 2. The water pump 20 transports the water from the water storage tank 19 to the nozzle 21. The sprayed water performs preliminary removal of particulate matter in the exhaust gas, reducing the workload of other equipment.

[0031] In a further embodiment of this application, a groove 22 is provided inside the pretreatment shell 4, and the filter plate 6 is slidably connected to the groove 22. The pretreatment shell 4 is provided with a door 23 that is movably connected to the pretreatment shell 4 and a handle 24 that is fixedly connected to the door 23. The addition of the door 23 and the groove 22 improves the convenience of replacing the filter plate 6.

[0032] In a further embodiment of this application, multiple filter plates 6, tanks 22, and activated carbon boxes 12 are provided, which further improves the filtration effect.

[0033] In a further embodiment of this application, both the diversion pipe 11 and the exhaust pipe 17 are provided with multiple valves 25 to ensure the sealing of the exhaust gas between the various devices.

[0034] In this embodiment, when the device is needed, the exhaust gas is delivered to the spray housing 18 on the base 1. The water pump 20 is started to supply water from the water tank 19 to the nozzle 21. The water sprayed from the nozzle 21 initially removes particulate matter from the exhaust gas. The exhaust gas with water vapor enters the pretreatment housing 4 on the support leg 3 through the first connecting pipe 2. The exhaust gas is dried and further filtered by multiple filter plates 6. Then, it enters the cooling pipe 8 on the pipe rack 7 through the second connecting pipe 5. When the exhaust gas flows along the cooling pipe 8, the heat is transferred to the outer surface through heat conduction through the pipe wall. Then, the motor 9 is started to make the fan blade 10 rotate. The fan performs forced ventilation to dissipate the heat into the environment, completing the cooling of the exhaust gas temperature. The cooled exhaust gas enters the final treatment device through the diversion pipe 11. In the initial state, the valves 25 at both ends of the photo-oxidation housing 13 are closed. The exhaust gas enters the activated carbon box 12. The exhaust gas filtered by multiple activated carbon boxes 12 is discharged through the exhaust pipe 17.

[0035] More specifically, when the activated carbon in the activated carbon box 12 reaches saturation, it needs to be desorbed and regenerated or replaced before it can be used again. During the replacement process, the valves 25 at both ends of the photo-oxidation shell 13 are opened and the valves at both ends of the activated carbon box 12 are closed, allowing the exhaust gas to enter the photo-oxidation shell 13. The exhaust gas flow rate is reduced by the diffuser plate 14 and the exhaust gas is evenly decomposed by the catalytic lamp tube 15. Then it is adsorbed by the activated carbon plate 16 and finally discharged through the exhaust pipe. The tank body 22 allows the filter plate 6 to be flexibly disassembled and installed, and the door 23 and handle 24 improve the convenience of replacing the filter plate 6.

[0036] In summary, when the equipment is in use or operation: when the equipment is needed, the exhaust gas is delivered to the spray housing 18 on the base 1, the water pump 20 is started to supply water from the water tank 19 to the nozzle 21, the water sprayed from the nozzle 21 preliminarily removes particulate matter from the exhaust gas, the exhaust gas with water vapor enters the pretreatment housing 4 on the support leg 3 from the first connecting pipe 2, the exhaust gas is dried and further filtered by multiple filter plates 6, and then enters the cooling pipe 8 on the pipe rack 7 through the second connecting pipe 5. When the exhaust gas flows along the cooling pipe 8, the heat is transferred to the outer surface through heat conduction through the pipe wall, and then the motor 9 is started to make the fan blade 10 rotate, the fan performs forced ventilation to dissipate the heat into the environment, and completes the cooling of the exhaust gas temperature. The cooled exhaust gas enters the final treatment device through the diversion pipe 11. In the initial state, the valves 25 at both ends of the photo-oxidation housing 13 are closed, the exhaust gas enters the activated carbon box 12, and the exhaust gas filtered by multiple activated carbon boxes 12 is discharged through the exhaust pipe 17.

[0037] When the activated carbon in the activated carbon box 12 reaches saturation, it needs to be desorbed and regenerated or replaced before it can be used again. During the replacement process, open the valves 25 at both ends of the photo-oxidation shell 13 and close the valves at both ends of the activated carbon box 12 to allow the exhaust gas to enter the photo-oxidation shell 13. The exhaust gas flow rate is reduced by the diffuser plate 14 and the exhaust gas is evenly decomposed by the catalytic lamp tube 15. Then it is adsorbed by the activated carbon plate 16 and finally discharged through the exhaust pipe. The tank body 22 allows the filter plate 6 to be flexibly disassembled and installed, and the door 23 and handle 24 improve the convenience of replacing the filter plate 6.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine exhaust gas treatment device, comprising a base (1), wherein the base (1) is provided with a spraying device, a pretreatment device, a cooling device and a final treatment device, wherein the pretreatment device comprises a first connecting pipe (2), a support leg (3), a pretreatment shell (4), a second connecting pipe (5) and a filter plate (6), wherein the pretreatment device is fixedly connected to the spraying device through the connecting pipe (2), wherein the pretreatment shell (4) is fixedly connected to the first connecting pipe (2), the second connecting pipe (5) and the support leg (3) respectively, and wherein the support leg (3) is fixedly connected to the base (1). The filter plate (6) is movably connected to the pretreatment shell (4). The cooling device includes a pipe frame (7), a cooling pipe (8), a motor (9), a fan blade (10), and a diversion pipe (11). The pipe frame (7) is fixedly connected to the cooling pipe (8) and the base (1) respectively. The cooling pipe (8) is fixedly connected to the second connecting pipe (5) and the diversion pipe (11) respectively. The motor (9) is fixedly connected to the pipe frame (7) and rotatably connected to the fan blade (10). The cooling device is fixedly connected to the final treatment device through the diversion pipe (11).

2. The injection molding machine exhaust gas treatment device according to claim 1, characterized in that: The final processing device includes an activated carbon box (12), a photo-oxidation shell (13), a diffuser plate (14), a catalytic lamp tube (15), an activated carbon plate (16), and an exhaust pipe (17). The activated carbon box (12) and the photo-oxidation shell (13) are both fixedly connected to the base (1). The activated carbon box (12) and the photo-oxidation shell (13) are both fixedly connected to the diversion pipe (11) and the exhaust pipe (17). The diffuser plate (14), the catalytic lamp tube (15), and the activated carbon plate (16) are all fixedly connected to the photo-oxidation shell (13).

3. The injection molding machine exhaust gas treatment device according to claim 2, characterized in that: The spraying device includes a spray housing (18), a water storage tank (19), a water pump (20), and a nozzle (21). The spray housing (18) and the water storage tank (19) are both fixedly connected to the base (1). The nozzle (21) is fixedly connected to the spray housing (18). The water pump (20) is fixedly connected to the water storage tank (19) and the nozzle (21) respectively through pipes. The spray housing (18) is fixedly connected to the pretreatment shell (4) through the first connecting pipe (2).

4. The injection molding machine exhaust gas treatment device according to claim 3, characterized in that: The pretreatment shell (4) is provided with a tank (22), and the filter plate (6) is slidably connected to the tank (22).

5. The injection molding machine exhaust gas treatment device according to claim 4, characterized in that: The pretreatment shell (4) is provided with a door (23) movably connected to the pretreatment shell (4) and a handle (24) fixedly connected to the door (23).

6. The injection molding machine exhaust gas treatment device according to claim 5, characterized in that: The filter plate (6), tank (22) and activated carbon box (12) are each provided with multiple units.

7. The injection molding machine exhaust gas treatment device according to claim 2, characterized in that: Both the diversion pipe (11) and the exhaust pipe (17) are equipped with multiple valves (25).

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