Chloroprene rubber film heating device and system

Abstract

The invention relates to the technical field of drying for removing liquid from solid materials or products, in particular to a chloroprene rubber film heating device and system. The chloroprene rubber film heating system comprises a chloroprene rubber film heating device and a dust removal mechanism, the dust removal mechanism is connected to the air outlet auxiliary pipe, and the dust removal mechanism is used for conducting dust removal on air about to enter the discharging port; the chloroprene rubber film heating device comprises a drying oven, and a belt conveyor used for laying a film is arranged in the drying oven. The heating gas sprayed out of the gas spraying pipe is used for drying the adhesive film on the conveying belt; a hot air recycling mechanism is mounted on the drying oven, and is used for dehydrating and heating the heated gas passing through the adhesive film after recycling the heated gas and spraying the heated gas onto the adhesive film again; the problem of how to recycle the heat of the adhesive film is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the drying technical field of eliminating liquid from solid materials or products, and particularly relates to a neoprene film heating device and system. BACKGROUND

[0002] Neoprene production includes two major processes of monomer (chlorobutadiene) synthesis and solid rubber manufacturing; due to the limitation of various production process conditions, there is a large amount of moisture on the surface of the formed solid rubber, and if the moisture is not removed in time, it will inevitably affect the quality of the solid rubber, so it is necessary to use a heating device to remove the moisture in the solid rubber in time; in the process of removing the moisture in the solid rubber by using the heating device, a large amount of hot gas carrying heat will be generated, and at this time, the hot gas and heat need to be recycled in time for reuse; the related heating device for moisture drying is disclosed in the Chinese patent library, for example, the intelligent environment-friendly energy-saving high-moisture drying system disclosed in the announcement No. CN116929027A uses a heating furnace to provide high-temperature fluid, which is conveyed into the pipeline of the flat plate dryer heating bed to rapidly increase the temperature; when the oil material passes through the heating bed, the high-temperature fluid is indirectly heated to make the moisture content meet the process requirements; the wet hot gas generated by the oil material is output through the gas extraction pipeline and the first exhaust fan; the heat energy of the wet hot gas is fully utilized to rapidly increase the temperature of the heat exchanger by using renewable energy; the clean air conveyed from the first air inlet fan is heated to maintain a certain temperature in the dryer, which greatly reduces the energy consumption of the heating furnace; the adjustment of the process operation route fully recycles the waste gas heat energy to achieve the effect of environmental protection and energy saving; the matching of the intelligent controller greatly improves the performance of the whole machine, increases the market share of the product, and creates economic and social benefits for the enterprise.

[0003] For another example, the drying system using the waste heat of the rotary kiln tail gas disclosed in the announcement No. CN101105364A is composed of the main equipment vertical air drying heat exchanger and auxiliary equipment waste gas inlet pipe, waste gas outlet pipe, feeding elevator, feeding belt conveyor, cyclone separator, centrifugal first fan, discharging belt conveyor, warehouse inlet elevator, dry slag warehouse, vertical air drying heat exchanger air inlet, dry slag outlet, circulating material belt conveyor, circulating material outlet, vertical air drying heat exchanger feeding pipe and vertical air drying heat exchanger air outlet.

[0004] The above two prior arts (CN116929027A, CN101105364A) have the problem that how to recycle the heat on the surface of the film (solid rubber) is not disclosed. SUMMARY

[0005] Therefore, the present application aims to provide a neoprene film heating device and system to solve the problem of how to recycle the heat of the film.

[0006] In the first aspect, the present application discloses a neoprene film heating device, which comprises an oven, an inlet and an outlet arranged on the two sides of the oven, a belt conveyor arranged in the oven, and a conveying belt of the belt conveyor used for laying the film; a steam main pipeline is arranged on the oven, and an injection port for connecting with a steam supply device is formed on the steam main pipeline; a plurality of shunt pipelines are formed at the bottom of the steam main pipeline and arranged in sequence from the inlet to the outlet; each shunt pipeline is separately connected with a steam heater, and an air inlet and an air outlet are arranged on the steam heater; an air injection pipe is connected with the air outlet of the steam heater, penetrates through the oven, and is arranged above the conveying belt, and the air injection pipe adjacent to the inlet is arranged as a first end; a hot air recycling mechanism is installed on the oven, and is used for recycling the hot air passing through the film, dehydrating, heating, and then spraying on the film again.

[0007] Specifically, the hot air recycling mechanism comprises a plurality of air outlet branch pipes, the number of the air outlet branch pipes is equal to that of the air injection pipes, each air outlet branch pipe is opposite to an adjacent air injection pipe, and each air outlet branch pipe penetrates through the oven and is connected with the outside; each air outlet branch pipe is connected with a reflux pipe, the front end of the reflux pipe is connected with the previous air outlet branch pipe from the first air injection pipe, the tail end of the reflux pipe is connected with the air inlet of the steam heater opposite to the next air outlet branch pipe, a dehydrator and a first fan are installed on the reflux pipe; an air injection auxiliary pipe is connected with the oven, and the free end of the reflux pipe at the tail end is connected with the air injection auxiliary pipe; the dehydrator is connected with a converging pipe, a water outlet nozzle is arranged on the converging pipe, and a heat preservation structure is additionally arranged on the outer surface of the reflux pipe.

[0008] Specifically, the hot air recycling mechanism further comprises a driving unit; the driving unit comprises an air outlet auxiliary pipe penetrating through the oven and connected with the outside, and the air outlet auxiliary pipe is opposite to the air injection auxiliary pipe; the dehydrator connected with the converging pipe is connected with the air outlet auxiliary pipe; a second fan is arranged on one side of the oven of the air outlet auxiliary pipe, and the second fan is used for sucking the gas in the air outlet auxiliary pipe into a guide pipe, and the other end of the guide pipe is connected with the air inlet of the steam heater at the first end.

[0009] Optimally, a water storage tank is arranged below the hot air recycling mechanism, and the water storage tank is connected with the oven through a support plate.

[0010] Optimally, a slope nozzle is connected with the outlet of the air injection pipe and the air injection auxiliary pipe, the slope surface of the slope nozzle is opposite to the outlet of the oven, a gas outlet is formed on the slope surface of the slope nozzle, and the cross section of the gas outlet extends at an acute angle with the film.

[0011] Optimally, the chloroprene rubber film heating device also includes a pressure relief mechanism, which is connected to the air duct and is used to release excess cold air or hot air in the air duct in a timely manner.

[0012] As a first embodiment of the pressure relief mechanism, the pressure relief mechanism includes a pressure relief pipe, which is connected to the air duct and communicates with the air duct; an electric stop valve is installed on the pressure relief pipe, and the electric stop valve is electrically connected to the terminal controller.

[0013] As a second embodiment of the pressure relief mechanism, the pressure relief mechanism also includes a pressure relief pipe, which is connected to the air duct and communicates with the air duct; the pressure relief pipe is connected to an explosion-proof pipe, and a blocking plate is provided in the explosion-proof pipe, and a first through hole is opened in the blocking plate; the bottom of the piston seat in the pressure relief pipe is slidably connected to the inner wall of the pressure relief pipe, and a second through hole is provided on the piston seat; the top flange of the piston seat slides through the pressure relief pipe and is placed on the outside of the pressure relief pipe, and the piston seat is fixedly connected to the pressure relief pipe through a first elastic component; when the first through hole is opposite to the second through hole and communicates with each other, the first elastic component is in a compressed state.

[0014] In a second aspect, the present invention provides a chloroprene rubber film heating system, which includes a chloroprene rubber film heating device and a dust removal mechanism. The dust removal mechanism is connected to the air outlet auxiliary pipe and is used to remove dust from the gas about to enter the discharge port.

[0015] The optimized dust removal mechanism includes a dust removal box, and the two ends of the dust removal box are respectively connected to the air outlet sub-pipe; the dust removal box is provided with a plurality of spray heads for forming water mist, and the spray heads are connected to the collecting pipe; the water inlet end of the collecting pipe is connected to the water guide pipe, and the other end of the water guide pipe is connected to the water pump in the water storage tank; a filter plate is provided under the spray head, and the filter plate slides through the dust removal box and is placed in the dust removal box.

[0016] The beneficial effects of the present invention are: The present invention combines structural components such as an oven and a hot air recovery and utilization mechanism to effectively achieve full drying of the film while ensuring full utilization of the initially heated cold air, thereby reducing energy consumption losses. On the other hand, when the hot air and hot air flow continue to dry the film, the interior of the oven is kept in a dry environment, further enhancing the drying effect of the film. This effectively solves the problem of how to recover and utilize the heat on the surface of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the chloroprene rubber film heating device from the first perspective.

[0018] Figure 2 This is a second-view overall structural diagram of the chloroprene rubber film heating device.

[0019] Figure 3 Partial structure diagram of heat air recycling mechanism.

[0020] Figure 4 Arrangement diagram of chamber in oven.

[0021] Figure 5 Mounting structure diagram of pressure relief mechanism embodiment one.

[0022] Figure 6 Mounting structure diagram of pressure relief mechanism embodiment two.

[0023] Figure 7 Sectional structure diagram of pressure relief mechanism embodiment two.

[0024] Figure 8 Three-dimensional structure diagram of piston seat.

[0025] Figure 9 Structure diagram of optimized pressure relief mechanism embodiment two.

[0026] Figure 10 Use state diagram of pressure relief mechanism embodiment two.

[0027] Figure 11 Mounting structure diagram of dust removal mechanism.

[0028] Figure 12 Three-dimensional structure diagram of dust removal mechanism.

[0029] Figure 13 Blow open structure diagram of dust removal mechanism.

[0030] Figure 14 Structure diagram of optimized dust removal mechanism.

[0031] Figure 15 Partial structure diagram of purge unit.

[0032] In the figure, 1. oven; 2. feed port; 3. discharge port; 4. belt conveyor; 5. steam main pipe; 6. injection port; 7. branch pipe; 8. steam heater; 9. jet pipe; 10. outlet branch pipe; 11. return pipe; 12. dehydrator; 13. first fan; 14. jet auxiliary pipe; 15. confluence pipe; 16. water outlet nozzle; 17. outlet auxiliary pipe; 18. second fan; 19. air guide pipe; 20. water storage tank; 21. inclined nozzle; 22. air outlet; 23. chamber; 24. pressure relief pipe; 25. electric stop valve; 26. explosion-proof pipe ; 27. Blocking plate; 28. First through hole; 29. ​​Piston seat; 30. Notch groove; 31. Second through hole; 32. First elastic component; 33. Pin; 34. First transmission gear; 35. Second transmission gear; 36. Fan blade; 37. Third transmission gear; 38. Fourth transmission gear; 39. Dust removal box; 40. Hole; 41. Spray head; 42. Focusing pipe; 43. Filter plate; 44. Vortex tube; 45. Vortex shaft; 46. Heat dissipation blade; 47. Worm wheel blade; 48. Second elastic component; 49. Air inlet pipe; 50. Water guide pipe. DETAILED DESCRIPTION

[0033] In order to clearly understand the technical solution of the present application, a chloroprene rubber film heating device and system provided by the present application will be described in detail below with reference to specific embodiments and drawings.

[0034] The terms used in the following examples are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and claims of this application, the singular expressions "a," "an," "above," "the," and "this" are intended to include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the following examples of this application, "at least one," "one or more" refer to one, two, or more than two.

[0035] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "one embodiment," "some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0036] Example 1: This example provides a chloroprene rubber film heating device, referring to Figure 1-2,in, Figure 1 The figure shows the overall structure of the chloroprene rubber film heating device from the first perspective. Figure 2 The second perspective overall structural diagram of the chloroprene rubber film heating device is shown. As can be seen from the above two figures, the chloroprene rubber film heating device includes an oven 1, which is combined with Figure 1 As shown in FIG, a feed port 2 is provided on one side of the oven 1, further combined with Figure 2 As shown in the figure, a discharge port 3 is provided on the other side of the oven 1; a belt conveyor 4 is provided on the inner side of the oven 1 (the belt conveyor 4 is an existing product that can be purchased on the market, and will not be described in detail here), the feeding end of the belt conveyor 4 passes through the feeding port 2 of the oven 1 and is placed on the outside of the oven 1, and the discharging end of the belt conveyor 4 passes through the discharge port 3 of the oven 1 and is placed on the outside of the oven 1, the belt conveyor 4 is fixedly connected to the oven 1 by reinforcing ribs, and the conveyor belt surface of the belt conveyor 4 is used for laying a rubber film (the rubber film is solid rubber, formed in the previous section); a steam main pipe 5 is provided on the top of the oven 1, and an injection port 6 is formed on the steam main pipe 5, and the injection port 6 is used to communicate with a device for providing steam (for example, a boiler that can be purchased on the market, and will not be described in detail here); the bottom of the steam main pipe 5 is formed There are four branch pipes 7 (of course, in the actual design process, the number of branch pipes 7 here can also be other numbers), each branch pipe 7 is separately connected to a steam heater 8 (for example, model JZGD-22070501, which will not be repeated here), and the steam airflow flowing in from the steam main pipe 5 and the branch pipe 7 is used as the heating medium of the steam heater 8; the steam heater 8 is provided with an air inlet and an air outlet, when cold air enters the steam heater 8 and passes through the steam heater 8, the steam heater 8 heats the cold air; the air outlet of the steam heater 8 is connected to an air jet pipe 9, which passes through the top of the oven 1 and is placed above the conveyor belt, and the hot air ejected from the air outlet dries the moisture of the rubber film laid on the conveyor belt after flowing through the air jet pipe 9. When hot air is sprayed onto the surface of the film to dry out the moisture, if the hot air is not recovered in time, it will flow out of the oven 1, resulting in a waste of resources. To this end, the present invention further designs a hot air recovery mechanism to address this technical problem. The hot air recovery mechanism is installed on the oven 1 and is used to further dehydrate and heat the hot air that has passed through the film and then re-spray it onto the film. The specific structure of the hot air recovery mechanism is as follows.

[0037] refer to Figure 1-3 , where is the head end, Figure 3The figure shows a partial structural diagram of the hot air recovery mechanism. As can be seen from the above figure, the hot air recovery mechanism includes an air outlet branch pipe 10. The number of the air outlet branch pipe 10 is equal to that of the air injection pipe 9, and a single air outlet branch pipe 10 corresponds to the air injection pipe 9 adjacent to the upper side. The air outlet branch pipe 10 passes through the bottom of the oven 1 and is connected to the outside world. A plurality of air injection pipes 9 (four in this embodiment) are arranged in sequence from the feed port 2 to the discharge port 3 of the oven 1. The air injection pipe 9 and the air outlet branch pipe 10 are adjacent to the feed port 2 of the oven 1. A single air outlet branch pipe 10 is connected to the reflux pipe 1 1, starting from the air injection pipe 9 at the head end, the front end of the return pipe 11 is connected to the previous air outlet branch pipe 10, and the rear end of the return pipe 11 is connected to the air inlet of the steam heater 8 above the next air outlet branch pipe 10. A dehydrator 12 (for example, a cyclone gravity dehydrator model CL-ZLTS) and a first fan 13 are respectively installed on the return pipe 11; the top of the oven 1 is also connected to the air injection auxiliary pipe 14, and the return pipe 11 connected at the tail end is connected to the air injection auxiliary pipe 14; each dehydrator 12 is connected to the manifold 15, and the manifold 15 is formed with a water outlet nozzle 16. As an optimization solution, to prevent heat loss during the hot air return process, an insulation structure is required on the return pipe 11. This insulation structure can be implemented in two ways: In the first embodiment, an insulation layer (not shown) is wrapped circumferentially around the outer wall of the return pipe 11. This insulation layer is made of a flexible, low-thermal-conductivity insulation material (such as rock wool felt, glass wool felt, or rubber-plastic sponge). The inner side of the insulation layer is tightly bonded to the outer wall of the return pipe 11, while the outer side is secured with a spiral wrap of high-temperature-resistant binding tape (such as fiberglass tape). The bindings are spaced 150-200 mm apart to ensure that there are no loose or gapping areas in the insulation layer. This insulation layer blocks heat exchange between the return pipe 11 and the surrounding environment, reducing heat loss from the medium within the pipe. In a second embodiment, an insulation sleeve (not shown) is installed on the outer surface of the return pipe 11. The sleeve is a detachable structure, consisting of an inner insulation core material (such as aluminum silicate fiber cotton) and an outer protective cloth (such as glass fiber cloth). The insulation core material is 40-60 mm thick, and the protective cloth is coated with a high-temperature resistant coating. A zipper or Velcro closure is provided on one side of the insulation sleeve, and a 5-10 mm gap is reserved between the insulation sleeve and the outer wall of the return pipe 11 to accommodate thermal expansion and contraction of the pipe.

[0038] When the present invention is in use, first, under the action of the driving unit, cold air flows into the air inlet of the head-end steam heater 8 along the direction a1, and the cold air is heated into hot air after flowing through the steam heater 8. The hot air is ejected from the air outlet of the head-end steam heater 8 and the jet pipe 9 along the direction a2 and blows onto the surface of the film. After flowing through the film, the hot air dries the moisture at the corresponding position of the film, and at the same time, the hot air is converted into water vapor when carrying moisture away. Then, under the action of the first fan 13, the water vapor generated here enters the air outlet branch pipe 10 at the head end along the direction a3, and the water vapor flows through the air outlet branch pipe 10 and enters the corresponding return pipe 11. At the same time, when the water vapor flows through the dehydrator 12 on the air outlet branch pipe 10, the dehydrator 12 separates the water vapor into water and hot air flow. The hot air flow enters the air inlet of the next steam heater 8 in the return pipe 11 along the directions a4 and a5 in turn. After the hot air flows out of the next steam heater 8 along the direction a6, it continues to dry the moisture at the corresponding position of the film, and the moisture enters the confluence pipe 15 along the direction b for subsequent recycling. Similarly, as the cold air sequentially transitions from hot air to water vapor, hot air flow, and finally moisture, it effectively dries the film while ensuring full utilization of the initially heated cold air, reducing energy losses. Furthermore, as the hot air and hot air flow continue to dry the film, the interior of oven 1 maintains a dry environment, further enhancing the drying effect. This effectively resolves the issue of heat recovery on the film surface. Finally, the hot air flow is ejected from the terminal nozzle 14, where it further dries the film.

[0039] The present invention combines the dehydrator 12 and the first fan 13 to achieve gas-liquid separation of water vapor on the one hand; more importantly, when the dehydrator 12 is used to separate the water vapor into gas and liquid, it involves the physical phenomenon of gas turning into liquid, and some heat is released at this time. When the hot air flow reaches the first fan 13, the heat will become smaller, thereby avoiding damage to the first fan 13 due to excessive temperature to a certain extent.

[0040] When the external cold air flows into the air inlet of the head-end steam heater 8, it needs to be completed with the assistance of the driving unit; for this purpose, the present invention further defines the driving unit, and the specific structure is as follows.

[0041] Continue to see Figure 1-3The driving unit includes an air outlet auxiliary pipe 17, which passes through the bottom of the oven 1 and is connected to the outside world, and the air outlet auxiliary pipe 17 corresponds to the air jet auxiliary pipe 14; the air outlet auxiliary pipe 17 is also connected to the dehydrator 12, and the dehydrator 12 is also connected to the manifold 15; a second fan 18 is provided on one side of the air outlet auxiliary pipe 17, and the second fan 18 is fixedly connected to the bottom of the oven 1 through a connecting rod. The air inlet of the second fan 18 is connected to the air outlet auxiliary pipe 17, and the air outlet of the second fan 18 is connected to the air guide pipe 19, and the other end of the air guide pipe 19 is connected to the air inlet of the head-end steam heater 8. During use, the second fan 18 is first started. Under the suction action of the second fan 18, cold air from the outside enters from the discharge port 3 of the drying oven 1 and is then sucked into the air outlet sub-pipe 17. After the gas-liquid separation treatment in the dehydrator 12, the cold air gradually flows through the air guide pipe 19 and enters the steam heater 8 at the head end; then, as the hot air flow is gradually ejected from the jet sub-pipe 14, also under the action of the second fan 18, the hot air flow passes through the film and intersects with the cold air entering from the discharge port 3 (when the cold air and the hot air flow converge, the cold air can be initially heated at this time, and then the cold air is heated for a second time by the steam heater 8).

[0042] As an optimization solution 1 of the present invention, continue to refer to Figure 1 A water storage tank 20 is further provided at the bottom of the water outlet 16 , and the water storage tank 20 is fixedly connected to the bottom of the oven 1 through a support plate (for example, by welding).

[0043] As the second optimization solution of the present invention, see Figure 3-4 A bevel nozzle 21 is connected to the outlet of the air jet pipe 9 and the air jet auxiliary pipe 14. The slope surface of the bevel nozzle 21 is opposite to the discharge port 3 of the oven 1. An air outlet 22 is formed on the slope surface of the bevel nozzle 21. The extended part of the cross section of the air outlet 22 forms an acute angle with the film. When in use, the hot air or hot air flow ejected from the air outlet 22 blows on the film in a tilted manner. At this time, the hot air or hot air flow will push the film and the conveyor belt to move toward the discharge port 3 of the oven 1. The hot air or hot air flow ejected from the bevel nozzle 21 is used as a driving source to drive the movement of the film and the conveyor belt. Of course, in actual use, the driving source can also directly use a motor, and the motor drives the conveyor belt to move.

[0044] As the third optimization scheme of the present invention, when the film first enters the oven 1, the water content on the film is the largest. In order to ensure that the amount of water on the film decreases in sequence, Figure 4 , which shows a schematic diagram of the arrangement structure of the sub-cavities 23 in the oven 1. It can be seen from the figure that sub-cavities 23 of different space sizes are set in the oven 1. From the feed port 2 to the discharge port 3, the space size of the sub-cavity 23 gradually decreases, and each sub-cavity 23 forms a one-to-one correspondence with each inclined nozzle 21.

[0045] In Example 2, as cold air and hot air continue to flow into the air duct 19, the gas pressure in the air duct 19 will inevitably exceed the maximum limit that the air duct 19 can withstand at some point; in order to balance the gas pressure in the air duct 19 in a timely manner and avoid the air duct 19 from bursting; for this purpose, this embodiment further designs a pressure relief mechanism, which is installed on the air duct 19, and the pressure relief mechanism is used to release excess cold air or hot air in the air duct 19 in a timely manner; the specific structure of the pressure relief mechanism is as follows.

[0046] refer to Figure 5 , shows a schematic diagram of the installation structure of a first embodiment of a pressure relief mechanism. As can be seen from the figure, the pressure relief mechanism includes a pressure relief pipe 24, which is connected to and communicates with the air duct 19. An electric shut-off valve 25 (a readily available product will suffice, and will not be described further here) is installed on the pressure relief pipe 24. The electric shut-off valve 25 is electrically connected to a terminal controller (an existing product will not be described further here). During operation, the terminal controller sets the maximum pressure that the electric shut-off valve 25 can withstand. The maximum pressure it can withstand is equal to that of the air duct 19. Once the air pressure in the air duct 19 exceeds the set value, the electric shut-off valve 25 transmits a signal to the terminal controller, which then commands the electric shut-off valve 25 to close. To further recycle the cold and hot air, the pressure relief pipe 24 can be directly connected to a heat exchanger, allowing the cold and hot air to be reused in the heat exchanger.

[0047] Example 3, reference Figure 6 and Figure 7 ,in, Figure 6 The diagram shows the installation structure of the second embodiment of the pressure relief mechanism. Figure 7 The figure shows a cross-sectional structural diagram of the second embodiment of the pressure relief mechanism; first, it can be seen from the figure that the pressure relief mechanism also includes a pressure relief pipe 24, which is connected to the air duct 19 and communicates with the air duct 19; an explosion-proof pipe 26 is formed on the side wall of the pressure relief pipe 24, and a blocking plate 27 is provided on the inner side of the explosion-proof pipe 26, and a first through hole 28 is opened on the blocking plate 27; a piston seat 29 is slidably connected to the pressure relief pipe 24 (refer to Figure 83D schematic diagram of the piston seat 29 shown in FIG), the bottom of the piston seat 29 is slidably connected to the inner wall of the pressure relief pipe 24, and a notch groove 30 is formed on the right side of the bottom of the piston seat 29. A second through hole 31 is formed on the bottom side of the notch groove 30, and the second through hole 31 connects the notch groove 30 with the air duct 19; the top flange of the piston seat 29 slides through the pressure relief pipe 24 and is placed on the outside of the pressure relief pipe 24. The left and right sides of the top flange of the piston seat 29 are respectively connected to a first elastic member 32 (such as a spring, etc.), and the other end of the first elastic member 32 forms a pressure relief pipe 24. Fixed connection; at the same time, it is stipulated that when the piston seat 29 moves upward, the first elastic component 32 is gradually compressed until the notch groove 30 is opposite to the first through hole 28, and the first through hole 28 is connected to the second through hole 31. At this time, the excess cold air or hot air in the air duct 19 flows through the pressure relief pipe 24, the second through hole 31, the notch groove 30, and the first through hole 28 in sequence, and then enters the pressure relief pipe 24; in actual design, the selection of the elastic coefficient of the first elastic component 32 is determined according to the maximum gas pressure that the air duct 19 can withstand, and will not be repeated here.

[0048] As an optimization of the second embodiment of the pressure relief mechanism, in order to enable the cold air or hot air to flow out of the air duct 19 and into the pressure relief pipe 24 faster, the pressure relief mechanism also includes an automatic suction unit, and the more specific structure of the automatic suction unit is as follows.

[0049] refer to Figure 9 Combined with Figure 6 ,in, Figure 9 The diagram shows the structure of the second embodiment of the optimized pressure relief mechanism. It can be seen from the above two figures that the automatic suction unit specifically includes a pin shaft 33, which is rotatably connected to the blocking plate 27. The first transmission gear 34 is concentrically fixedly connected to the end of the pin shaft 33 close to the piston seat 29, and the second transmission gear 35 is concentrically fixedly connected to the top flange of the piston seat 29. When the notch groove 30 is opposite to the first through hole 28, the first transmission gear 34 can mesh with the second transmission gear 35 and form a linkage (when the first elastic member 32 is in the natural state), the first transmission gear 34 can mesh with the second transmission gear 35 and form a linkage. The first transmission gear 34 and the second transmission gear 35 are not in contact and fit when the first elastic component 32 is in the natural state. A fan blade 36 is concentrically fixedly connected to the other end of the pin 33 away from the piston seat 29, and a third transmission gear 37 is concentrically fixedly connected to the end with the top flange positioned outside the pressure relief pipe 24. A fourth transmission gear 38 is concentrically fixedly connected to the roller shaft of the conveyor belt. The third transmission gear 37 can mesh with and operate in conjunction with the fourth transmission gear 38 (when the first elastic component 32 is in the natural state, the third transmission gear 37 and the fourth transmission gear 38 are not in contact and fit). It is also stipulated that when the first transmission gear 34 is meshed with the second transmission gear 35, the third transmission gear 37 is meshed with the fourth transmission gear 38.

[0050] The working principle of the second embodiment of the pressure relief mechanism is as follows: First, as cold air and hot air continue to flow into the air duct 19, once the gas pressure exceeds the capacity of the air duct 19, the piston seat 29 will move upward under the push of the gas, and the first elastic component 32 will also be compressed accordingly. Figure 10 ( Figure 10 (a diagram showing the use state of the second embodiment of the pressure relief mechanism) until the first transmission gear 34 is engaged with the second transmission gear 35, at which time the first through hole 28 is connected to the second through hole 31, and the gas (cold air or hot air) flows in directions a1, a2, and a3 in sequence through the air duct 19, the pressure relief pipe 24, the second through hole 31, the notch 30, the first through hole 28, and is discharged from the explosion-proof pipe 26, thereby allowing the excess gas in the air duct 19 to be released, thereby preventing the air duct 19 from bursting; at the same time, Figure 10 As can be seen in the figure, the presence of the notch 30 redirects the gas flowing out of the air duct 19, allowing it to flow more quickly from the second through hole 31 into the first through hole 28, thereby improving work efficiency. When the first transmission gear 34 meshes with the second transmission gear 35, the third transmission gear 37 meshes with the fourth transmission gear 38. As the conveyor belt rotates, the roller shaft sequentially rotates the first transmission gear 34, the second transmission gear 35, the third transmission gear 37, the fourth transmission gear 38, and the fan blades 36. The rotating fan blades 36 more quickly draw gas out of the air duct 19 and discharge it from the explosion-proof duct 26.

[0051] Example 4. This embodiment further provides a chloroprene rubber film heating system, including the chloroprene rubber film heating device involved in Examples 1-3. The cold air entering from the discharge port 3 will inevitably be mixed with a small amount of dust. Since the film at the discharge port 3 is already in a dry state, even if there is a small amount of dust, the dust can be removed by blowing. However, if the cold air enters the steam heater 8 at the head end without dust removal, the subsequent dust will be sprayed onto the film at the feed port 2 after flowing out of the steam heater 8. At this time, there is more moisture on the film, and once it comes into contact with dust, it is bound to affect the quality of the film. For this reason, the present invention further designs a dust removal mechanism, such as Figure 11 As shown, Figure 11 Schematic diagram of the installation structure of the dust removal mechanism. The dust removal mechanism is installed on the auxiliary air outlet pipe 17. The specific structure of the dust removal mechanism is as follows.

[0052] Combine Figure 11-13 ,in, Figure 12 What is shown is a schematic diagram of the three-dimensional structure of the dust removal mechanism. Figure 13What is shown is a schematic diagram of the exploded structure of the dust removal mechanism. It can be seen from the figure that the dust removal mechanism includes a dust removal box body 39, and holes 40 are formed on the top and bottom of the dust removal box body 39 respectively. The holes 40 on the top and bottom of the dust removal box body 39 are respectively connected to the air outlet sub-pipe 17; a plurality of spray heads 41 are installed on the side wall of the dust removal box body 39, and the water outlet part of the spray head 41 is arranged horizontally and perpendicular to the center line of the hole 40; the plurality of spray heads 41 are all connected with the focusing pipe 42, and the water inlet end of the focusing pipe 42 is connected to the water pump in the water storage tank 20 through the water guide pipe 50; a filter plate 43 is provided below the plurality of spray heads 41, and the filter plate 43 slides through the side wall of the dust removal box body 39 and is placed in the dust removal box body 39. During use, the water pump is started, and the water in the water storage tank 20 is further recycled by the water pump through the water guide pipe 50 into the collecting pipe 42, and then the water is sprayed out through the multiple spray heads 41. The water sprayed by the multiple spray heads 41 together forms a water mist. At this time, the water mist is perpendicular to the axis of the hole 40, so that the water mist forms a "water barrier" in the dust removal box 39; when the gas flows from the top to the bottom of the dust removal box 39, the dust in the gas combines with the water mist and falls on the surface of the filter plate 43, thus preventing the dust from entering the air guide pipe 19 and also preventing the dust from flowing back into the oven 1 through the air outlet auxiliary pipe 17; the gas and water mist combination passes through the filter plate 43 and enters the dehydrator 12, and then the gas passing through the dehydrator 12 enters the air guide pipe 19, and the water mist passing through the dehydrator 12 flows back to the water storage tank 20, thereby completing the dust removal operation of the gas; when there is a lot of silt on the filter plate 43, the filter plate 43 can be pulled out of the dust removal box for cleaning. The present invention can realize dust removal operation of dust in water and recycle the water in the water storage tank 20 by combining the dust removal mechanism.

[0053] When the cold air enters from the discharge port 3, a small amount of dust will fall on the film at the discharge port 3. Therefore, the present invention further optimizes the dust removal mechanism, specifically as follows: Figure 14 ,in Figure 14 What is shown is a schematic structural diagram of the optimized dust removal mechanism. It can be seen from the figure that the dust removal mechanism also includes a purge unit. The specific structure of the purge unit is as follows.

[0054] refer to Figure 14 Combined with Figure 15 ,in, Figure 15What is shown is a schematic diagram of the partial structure of the purge unit. It can be seen from the figure that the purge unit includes a vortex cylinder 44, which is located on one side of the discharge port 3 of the oven 1, and the vortex cylinder 44 is fixedly connected to the frame of the belt conveyor 4 through a column; a vortex shaft 45 is rotatably connected to the center of the vortex cylinder 44, and a heat dissipation blade 46 is concentrically fixedly connected to the vortex shaft 45 located outside the vortex cylinder 44; a plurality of worm blades 47 are arranged in an annular array on the vortex shaft 45 located in the vortex cylinder 44, and a second elastic component 48 (such as a spring, etc.) is fixedly connected to the vortex shaft 45, and the other end of the second elastic component 48 is fixedly connected to the vortex cylinder 44; a liquid inlet and a liquid outlet are formed on the vortex cylinder 44, and the liquid inlet and the liquid outlet are respectively connected to the water pipe 50. During use, the pump body is first started and shut down in an intermittent cycle, so that the water in the water storage tank 20 intermittently enters the vortex cylinder 44. Once the water enters the vortex cylinder 44 at high speed and impacts the worm wheel blades 47, the worm wheel blades 47 rotate under the action of the water pressure. Once the water stops entering the vortex cylinder 44, the worm wheel blades 47 are no longer constrained by the water pressure and return to their original position under the action of the second elastic component 48. The worm wheel blades 47 drive the vortex shaft 45 to rotate clockwise or counterclockwise during the left and right reciprocating swing. The reciprocating vortex shaft 45 drives the heat dissipation blades 46 to rotate reciprocally, thereby blowing away the dust on the film at the discharge port 3. The present invention, by combining the optimized dust removal mechanism and the water in the water storage tank 20, can achieve dust removal for the gas about to enter the feed port 2, and can also achieve dust blowing off the film at the discharge port 3.

[0055] As an optimization treatment for the dust removal mechanism, further combined with Figure 13 An air inlet pipe 49 is further provided on one side of the dust removal box 39 (an electric valve for opening and closing the air inlet pipe 49 is installed on the air inlet pipe 49, which will not be described here). By combining the feed port 2 and the air inlet pipe 49, the outside cold air can enter the dust removal box 39 from two parts at the same time, which can ensure that the cold air can quickly enter the dust removal box 39 within a certain period of time, thereby improving work efficiency.

Claims

1. A chloroprene rubber film heating device, characterized in that: The invention comprises an oven (1), wherein a feed port (2) and a discharge port (3) are respectively provided on both sides of the oven (1), a belt conveyor (4) is provided in the oven (1), and a conveyor belt of the belt conveyor (4) is used for laying a film; a steam main pipe (5) is provided on the oven (1), and an injection port (6) for connecting to a steam supply device is formed on the steam main pipe (5); a plurality of branch pipes (7) are formed at the bottom of the steam main pipe (5), and the branch pipes (7) are arranged in sequence from the feed port (2) to the discharge port (3) Each branch pipe (7) is independently connected to a steam heater (8), and an air inlet and an air outlet are provided on the steam heater (8); the air outlet of the steam heater (8) is connected to an air jet pipe (9), which passes through the oven (1) and is placed above the conveyor belt, and the air jet pipe (9) adjacent to the feed port (2) is set as the head end; a hot air recovery mechanism is installed on the oven (1), and the hot air recovery mechanism is used to recover the hot air that has passed through the film, dehydrate it, heat it, and spray it onto the film again.

2. The chloroprene rubber film heating device according to claim 1, characterized in that: The hot air recovery and utilization mechanism includes an air outlet branch pipe (10), the number of the air outlet branch pipe (10) is equal to that of the air jet pipe (9), a single air outlet branch pipe (10) is opposite to the adjacent air jet pipe (9), the air outlet branch pipe (10) passes through the oven (1) and is connected to the outside; a single air outlet branch pipe (10) is connected to the return pipe (11), starting from the first end air jet pipe (9), the front end of the return pipe (11) is connected to the previous air outlet branch pipe (10), and the end of the return pipe (11) is connected to the next air outlet branch pipe (10). The air outlet branch pipe (10) is connected to the air inlet of the steam heater (8) opposite thereto, and a dehydrator (12) and a first fan (13) are installed on the return pipe (11); the oven (1) is connected to the jet auxiliary pipe (14), and the free end of the return pipe (11) at the tail end is connected to the jet auxiliary pipe (14); the dehydrator (12) is connected to the confluence pipe (15), and the confluence pipe (15) is provided with a water outlet nozzle (16); and a heat-insulating structure is installed on the outer surface of the return pipe (11).

3. The chloroprene rubber film heating device according to claim 2, characterized in that: The hot air recovery mechanism further comprises a driving unit; the driving unit comprises an outlet auxiliary pipe (17) which passes through the drying oven (1) and is in communication with the outside, the outlet auxiliary pipe (17) being opposite to the jet auxiliary pipe (14); the outlet auxiliary pipe (17) being connected to a dehydrator (12) in communication with a manifold (15); a second fan (18) is provided on the drying oven (1) on one side of the outlet auxiliary pipe (17), the second fan (18) being used to draw gas in the outlet auxiliary pipe (17) into an air guide pipe (19), the other end of the air guide pipe (19) being in communication with an air inlet of the head-end steam heater (8).

4. The chloroprene rubber film heating device according to claim 1, characterized in that: A water storage tank (20) is provided below the hot air recovery mechanism, and the water storage tank (20) is connected to the oven (1) via a support plate.

5. The chloroprene rubber film heating device according to claim 2, characterized in that: The outlets of the jet pipe (9) and the jet auxiliary pipe (14) are connected to a bevel nozzle (21), and the slope surface of the bevel nozzle (21) is opposite to the discharge port (3) of the oven (1); an air outlet (22) is formed on the slope surface of the bevel nozzle (21), and the extended portion of the cross section of the air outlet (22) forms an acute angle with the film.

6. The chloroprene rubber film heating device according to claim 3, characterized in that: It also includes a pressure relief mechanism, which is connected to the air duct (19) and is used to release excess cold air or hot air in the air duct (19) in a timely manner.

7. The chloroprene rubber film heating device according to claim 6, characterized in that: The pressure relief mechanism comprises a pressure relief pipe (24), which is connected to the air duct (19) and communicates with the air duct (19); an electric stop valve (25) is installed on the pressure relief pipe (24), and the electric stop valve (25) is electrically connected to the terminal controller.

8. The chloroprene rubber film heating device according to claim 6, characterized in that: The pressure relief mechanism also includes a pressure relief pipe (24), which is connected to the air duct (19) and communicates with the air duct (19); the pressure relief pipe (24) is communicated with the explosion-proof pipe (26), a blocking plate (27) is provided in the explosion-proof pipe (26), and a first through hole (28) is provided in the blocking plate (27); the bottom of the piston seat (29) in the pressure relief pipe (24) is slidably connected to the inner wall of the pressure relief pipe (24), and a second through hole (31) is provided on the piston seat (29); the top flange of the piston seat (29) slides through the pressure relief pipe (24) and is placed outside the pressure relief pipe (24), and the piston seat (29) is fixedly connected to the pressure relief pipe (24) through a first elastic component (32); when the first through hole (28) and the second through hole (31) are opposite and communicated, the first elastic component (32) is in a compressed state.

9. A chloroprene rubber film heating system, characterized in that: The heating device for an oven and a dust removal mechanism as claimed in claim 3 are included, wherein the dust removal mechanism is connected to the auxiliary gas outlet pipe (17), and the dust removal mechanism is used to remove dust from the gas about to enter the discharge port (3).

10. The chloroprene rubber film heating system according to claim 9, characterized in that: The dust removal mechanism includes a dust removal box (39), both ends of which are connected to the air outlet auxiliary pipe (17); a plurality of spray heads (41) for forming water mist are provided on the dust removal box (39), and the spray heads (41) are connected to the flow collecting pipe (42); the water inlet end of the flow collecting pipe (42) is connected to the water guide pipe (50), and the other end of the water guide pipe (50) is connected to the water pump in the water storage tank (20); a filter plate (43) is provided below the spray head (41), and the filter plate (43) slides through the dust removal box (39) and is placed in the dust removal box (39).

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