Energy-saving and emission-reducing device for dry-type composite machine

Abstract

The utility model discloses an energy-saving and emission-reduction device for a dry-type compound machine, comprising a frame and a main air duct fixedly mounted on the frame, wherein a partition is arranged in the main air duct, wherein the partition divides the main air duct into an air outlet and an air inlet which are distributed up and down and connected at one end, wherein the air inlet is connected to an oven, and the other end of the air outlet is externally connected to an exhaust fan, wherein a plurality of heating return air devices corresponding to the number of oven sections are arranged in sequence along the length direction of the main air duct above the main air duct, wherein the heating return air device is connected to the oven and the air outlet and is suitable for sending the air in the air outlet to the air inlet of the oven and then returning the air to the air outlet through the exhaust port of the oven. The utility model is applied to a dry-type compound machine, and can save energy, reduce heat emission, and achieve energy saving and emission reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type compound machines, in particular to an energy-saving and emission-reducing device for dry-type compound machines. Background Art

[0002] The dry laminating machine is a machine that bonds different plastic films together to form a composite film through a dry laminating process. The dry laminating process is to fully dry the solvent in the glue liquid by heating and exhausting it after the glue is applied, and then laminating in a "dry" state.

[0003] The dry laminating machine generally comprises an anilox roller coating mechanism, a first unwinding mechanism, a drying tunnel, a second unwinding mechanism, a compounding mechanism and a winding mechanism, and the lamination of the substrate is completed through the process steps of coating, drying in the drying tunnel, compounding, cooling and winding. For example, the Chinese patent application with the publication number CN103568454A discloses an improved dry laminating machine, which comprises an unwinding device, a cooling roller, a winding device and an anilox roller coating device, wherein the unwinding device is located below the frame, and the unwinding device consists of a first substrate unwinding device and a second substrate unwinding device, the drying tunnel is located at the top of the frame, and the second substrate unwinding device is arranged horizontally. The oven is an important component in the dry laminating machine. The traditional oven for dry laminating machine is generally divided into three sections. Each section of the oven has an exhaust port on the top and an air inlet on the bottom. The three-section oven has three exhaust ports and three air inlets, and the air inlet is directly connected to the outdoors. The outdoor fresh air is introduced into the oven and heated to 80°C to dry the glue. At the same time, the exhaust gas in the three-section oven is discharged from the three exhaust ports respectively. Not only is the energy consumption very high, but the emissions are also very large, resulting in a large amount of heat loss. Utility Model Content

[0004] The purpose of the utility model is to propose an energy-saving and emission-reduction device for a dry-type compound machine in view of the deficiencies in the prior art, which can save energy, reduce heat emission, and achieve energy saving and emission reduction.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] An energy-saving and emission-reduction device for a dry-type compound machine comprises a frame and a main air duct fixedly mounted on the frame, wherein a partition is arranged in the main air duct, and the partition divides the main air duct into an air outlet and an air inlet which are distributed up and down and connected at one end, the air inlet is connected to an oven, and the other end of the air outlet is externally connected to an exhaust fan, and a plurality of heating return air devices corresponding to the number of oven sections are arranged in sequence above the main air duct along the length direction of the main air duct, the heating return air device is connected to the oven and the air outlet and is suitable for sending the air in the air outlet to the air inlet of the oven and then returning it to the air outlet through the exhaust port of the oven.

[0007] Furthermore, the heating return air device includes a return air duct and a heating component, the two ends of the return air duct are respectively connected to the air outlet and the exhaust port of the oven, and the two ends of the heating component are respectively connected to the air outlet and the air inlet of the oven.

[0008] Furthermore, the heating assembly includes a branch pipe and a turbine fan and a heating pipe arranged in the branch pipe from bottom to top, and two ends of the branch pipe are respectively connected to the air outlet and the air inlet of the oven.

[0009] Furthermore, the outlet of the branch pipe is a bell mouth.

[0010] Furthermore, the branch ducts, return air duct and main air duct are all assembled from a plurality of duct units.

[0011] Furthermore, an exhaust portion is provided at the entrance of the air inlet duct, and a first fresh air duct and a second fresh air duct respectively connected to the top and the bottom of the oven are provided at the entrance of the exhaust portion.

[0012] Furthermore, the first fresh air duct and the second fresh air duct are staggered.

[0013] By adopting the above technical solution, the utility model has the following beneficial effects:

[0014] (1) The utility model connects the oven by setting a main air duct consisting of an air inlet and an air outlet, so as to directly collect the waste gas with a certain temperature in the oven, and is provided with a heating return air device connected between the air outlet and the oven, so as to heat the waste gas again to meet the drying temperature of the dry compound machine, and then transmit it to the oven for use, so as to make full use of the heat of the waste gas. Compared with the prior art that directly connects to the outdoor fresh air for heating, it effectively saves energy; at the same time, the heat in the oven is returned to the air outlet through the heating return air device again, so as to be used for drying in other sections of the oven. Compared with the prior art that directly discharges the heat from each section of the oven to the outdoors, it reduces the heat emission, thereby achieving energy saving and emission reduction.

[0015] (2) The utility model heating return air device is composed of a return air duct and a heating component, thereby forming a circulating air between the oven and the air outlet duct. The structure is simple and can perform secondary heating on the oven exhaust gas flowing through, ensuring that the airflow entering the oven meets the drying temperature requirements and reducing the energy consumption of the oven.

[0016] (3) The heating component of the utility model adopts a turbine fan for exhaust, which has a small size and a large air volume, and is conducive to the miniaturization design of the heating component.

[0017] (4) The outlet of the branch pipe of the utility model is a bell mouth, so that the wind flowing back to the outlet duct can be diffused to avoid concentration and affect the flow of the wind in the duct flowing horizontally through the outlet of the branch pipe.

[0018] (5) The branch ducts, return air ducts and main air ducts of the utility model are all assembled from multiple duct units, which is convenient for transportation, assembly and maintenance.

[0019] (6) The utility model is provided with an exhaust part which is connected to the top and the bottom of the oven respectively, so that the exhaust gas in the oven can be quickly absorbed into the main air duct, thereby improving the air circulation efficiency.

[0020] (7) The first fresh air duct and the second fresh air duct of the utility model are staggered to avoid the collision of the two air flows, which would prevent the air flows from smoothly entering the air inlet duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 It is the front view of the utility model;

[0023] Figure 2 It is a left view of the utility model;

[0024] Figure 3 It is a top view of the utility model.

[0025] The reference numerals in the accompanying drawings are:

[0026] Frame 1, main air duct 2, partition 2-1, air outlet duct 2-2, air inlet duct 2-3, heating return air device 3, return air duct 3-1, heating component 3-2, branch duct 3-2-1, turbo fan 3-2-2, exhaust part 4, first fresh air duct 4-1, second fresh air duct 4-2. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0031] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] (Example 1)

[0033] like Figures 1 to 3 The energy-saving and emission-reduction device for a dry-type compound machine shown in the figure comprises a frame 1, a main air duct 2 and a heating return air device 3 fixedly mounted on the frame 1, the main air duct 2 being arranged horizontally, and a partition 2-1 being arranged inside, thereby dividing the air duct 2 into an outlet duct 2-2 and an inlet duct 2-3 distributed vertically, wherein the left end of the inlet duct 2-3 is a fresh air inlet, and the right end is connected to the outlet duct 2-2, and the left end of the outlet duct 2-2 is externally connected to an exhaust fan. The heating return air device 3 is located above the main air duct 2. In view of the fact that the ovens of general dry-type compound machines are all three-stage structures, the heating return air device 3 of this embodiment is also provided with three groups, and each section of the oven is connected to the outlet duct 2-2 of the corresponding section respectively. By setting up a main air duct 2 consisting of an air inlet duct 2-3 and an air outlet duct 2-2 to connect the oven, the exhaust gas with a certain temperature in the oven is directly collected, and the exhaust gas is heated again to a drying temperature that meets the drying temperature of the dry compound machine through a heating return air device 3, and then transmitted to the oven for use, thereby making full use of the heat of the exhaust gas. Compared with the prior art of directly connecting to the outdoor fresh air for heating, energy is effectively saved; at the same time, the heat in the oven is returned to the outlet duct 2-2 through the heating return air device 3 for use in drying in other sections of the oven. Compared with the prior art of directly discharging the heat from each section of the oven to the outdoors, heat emission is reduced, thereby achieving energy conservation and emission reduction.

[0034] Specifically, the heating return air device 3 includes a return air duct 3-1 and a heating component 3-2. The two ends of the return air duct 3-1 are respectively connected to the air outlet 2-2 and the exhaust port of the oven. The heating component 3-2 includes a branch pipe 3-2-1 and a turbine fan 3-2-2 and a heating pipe arranged in the branch pipe 3-2-1 from bottom to top. The turbine fan is used for exhaust, which has a small volume and a large air volume, which is conducive to the miniaturization design of the heating component. The two ends of the branch pipe 3-2-1 are respectively connected to the air outlet and the air inlet of the oven, and the outlet of the branch pipe 3-2-1 is a bell mouth, so that the wind flowing back to the air outlet 2-2 can be diffused to avoid concentrated gathering and affecting the flow of the wind in the air duct flowing horizontally through the outlet of the branch pipe 3-2-1. The entrance of the air inlet 2-3 is provided with an exhaust unit 4, and the entrance of the exhaust unit 4 is provided with a first fresh air duct 4-1 and a second fresh air duct 4-2 respectively connected to the top and bottom of the oven, so as to quickly absorb the exhaust gas in the oven into the main air duct 2, thereby improving the air circulation efficiency. At the same time, the first fresh air duct 4-1 and the second fresh air duct 4-2 are staggered to avoid the collision of the two air flows and the inability to smoothly enter the air inlet 2-3. In addition, the branch pipe 3-2-1, the return air duct 3-1 and the main air duct 2 are all assembled from multiple pipe units, which is more convenient for transportation, assembly and maintenance.

[0035] The working process of this embodiment is as follows: the waste gas with a certain temperature in the oven of the dry compound machine enters into the main air duct 2 as fresh air through the exhaust part 4, flows into the air outlet duct 2-2 through the air inlet duct 2-3, and under the action of the turbine fan 3-2-2 of the heating component 3-2 corresponding to the first section oven, the waste gas is sucked into the branch pipe 3-2-1, and sent into the oven after being heated by the heating pipe, and then discharged to the air outlet duct 2-2 through the return air duct 3-1, and then processed by the heating return air device 3 at the second section oven and the third section oven in turn, and finally discharged to the air outlet duct 2-2 and discharged by the external exhaust fan.

[0036] In the traditional design, each section of the oven has an exhaust port on the top, and the three-section oven has three exhaust ports, and the fresh air is also used outdoors. When the outdoor temperature is low, the required drying temperature is also increased to about 80°C, and the energy consumption and emissions are also large. In this embodiment, the exhaust direction of the upper layer of the entire main air duct 2 is from right to left, forming a negative pressure state, and the hot air is recycled and finally discharged by an exhaust fan with the same exhaust volume, saving energy and reducing emissions. Thus, energy saving and emission reduction are achieved.

[0037] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving and emission-reduction device for a dry laminating machine, characterized in that: The invention comprises a frame (1) and a main air duct (2) fixedly mounted on the frame (1); a partition (2-1) is arranged inside the main air duct (2); the partition (2-1) divides the main air duct (2) into an air outlet (2-2) and an air inlet (2-3) which are distributed up and down and connected at one end; the air inlet (2-3) is connected to an oven; the other end of the air outlet (2-2) is externally connected to an exhaust fan; a plurality of heating return air devices (3) corresponding to the number of oven sections are arranged in sequence above the main air duct (2) along the length direction of the main air duct (2); the heating return air device (3) is connected to the oven and the air outlet (2-2) and is suitable for sending the air in the air outlet (2-2) to the air inlet of the oven and then returning the air to the air outlet (2-2) through the air outlet of the oven.

2. The energy-saving and emission-reduction device for a dry laminating machine according to claim 1, characterized in that: The heating return air device (3) comprises a return air duct (3-1) and a heating component (3-2), wherein the two ends of the return air duct (3-1) are respectively connected to the air outlet (2-2) and the air outlet of the oven, and the two ends of the heating component (3-2) are respectively connected to the air outlet (2-2) and the air inlet of the oven.

3. The energy-saving and emission-reduction device for a dry laminating machine according to claim 2, characterized in that: The heating assembly (3-2) comprises a branch pipe (3-2-1) and a turbine fan (3-2-2) and a heating pipe (3-2-3) which are arranged in sequence from bottom to top in the branch pipe (3-2-1), and the two ends of the branch pipe (3-2-1) are respectively connected to the air outlet (2-2) and the air inlet of the oven.

4. The energy-saving and emission-reducing device for a dry laminating machine according to claim 3, characterized in that: The outlet of the branch pipe (3-2-1) is a bell mouth.

5. The energy-saving and emission-reduction device for a dry laminating machine according to claim 3, characterized in that: The branch duct (3-2-1), the return air duct (3-1) and the main air duct (2) are all assembled from a plurality of duct units.

6. The energy-saving and emission-reducing device for a dry laminating machine according to claim 1, characterized in that: An exhaust section (4) is provided at the entrance of the air inlet duct (2-3), and a first fresh air duct (4-1) and a second fresh air duct (4-2) which are respectively connected to the top and bottom of the oven are provided at the entrance of the exhaust section (4).

7. The energy-saving and emission-reducing device for a dry laminating machine according to claim 6, characterized in that: The first fresh air duct (4-1) and the second fresh air duct (4-2) are arranged in a staggered manner.

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