Waste heat recovery device of printing baking machine

Abstract

The utility model relates to the technical field of waste heat recovery devices, and discloses a printing baking machine waste heat recovery device which comprises a shell, a partition plate, a heat absorption space, a heat release space, a heat exchange plate, a waste gas inlet, a waste gas outlet, a cold air inlet, a hot air outlet, a first cleaning assembly, a second cleaning assembly, a falling space, a material collecting shell and a cleaning door. By the adoption of the structure, the printing baking machine can be effectively utilized to remove waste heat in waste gas, cold air enters the printing baking machine after being preliminarily heated, and therefore energy consumption needed by heating is reduced, the utilization efficiency of energy is improved, the production cost is reduced, and the adverse effect on the environment is relieved through waste gas emission after the temperature is reduced; meanwhile, the first cleaning assembly and the second cleaning assembly can clean impurities, dust, ink and the like on the heat exchange plate, so that the situation that the heating efficiency is affected due to excessive accumulation is avoided; and the mode that the cleaning door is matched with the detachably-connected material collecting shell is adopted, and cleaning is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery devices, in particular to a waste heat recovery device for a printing and baking machine. Background Art

[0002] Printing is the process of transferring ink from originals such as text, pictures, and photos to the surface of materials such as paper, fabric, and leather through processes such as plate making, inking, and pressurization. With the gradual development of the printing industry, the number of printing equipment is also increasing. A printing press is a machine for printing text and images. Different printing processes require a drying system to dry ink and other materials on the substrate during the printing process to achieve a more beautiful effect. During the printing and drying process, the printing press heats the cold air through a heating device, and the fan transports the hot air into the oven to dry the substrate, and then the exhaust fan discharges the exhaust gas to the outside of the oven, and the cycle continues. In this process, a large amount of heat in the oven is discharged with the exhaust air, resulting in a large amount of heat energy loss. In order to achieve efficient use of energy, reduce production costs, and reduce adverse effects on the environment, a waste heat recovery device is usually used to absorb and reuse the heat in the exhaust gas.

[0003] However, traditional printing equipment needs to use hot air to dry the ink, and the exhaust gas is discharged through the exhaust port. The exhaust gas contains a large amount of ink, which will cause the ink to adhere to the inside of the waste heat recovery device, making it difficult to recycle the waste heat. Utility Model Content

[0004] The utility model mainly provides a waste heat recovery device for a printing and baking machine, which solves the problem that a large amount of ink is contained in the waste gas, so that the ink adheres to the inside of the waste heat recovery device, making it difficult to recycle the waste heat.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A waste heat recovery device for a printing and baking machine, comprising a shell, a partition plate is arranged in the middle of the shell, the partition plate is used to divide the space in the shell into a heat absorption space and a heat release space, and multiple layers of heat exchange plates are arranged on the partition plate from top to bottom, the left end of the heat exchange plate extends into the heat absorption space, and the right end of the heat exchange plate extends into the heat release space; the shell is provided with an exhaust gas inlet and an exhaust gas outlet corresponding to the heat absorption space, and the shell is provided with a cold air inlet and a hot air outlet corresponding to the heat release space; a first cleaning component for cleaning the heat exchange plate in the heat absorption space is arranged on the left side of the shell, and a second cleaning component for cleaning the heat exchange plate in the heat release space is arranged on the shell; the two ends of the heat exchange plate and the two side walls of the shell form a falling space, and a collection shell is detachably connected to the shell corresponding to the position below the falling space, and a cleaning door is arranged on the shell corresponding to one side of the collection shell. Among them, the heat exchange plate can adopt any one of the existing technologies as long as it can realize the heat exchange function. The exhaust gas outlet can be connected to the pipeline component without affecting the operation of the cold air inlet. When in use, the exhaust gas inlet is connected with the exhaust gas outlet of the printing dryer, and the hot air outlet is connected with the air inlet of the printing dryer. The exhaust gas discharged by the printing dryer will enter the shell from the exhaust gas inlet, and undergo heat exchange through the heat exchange plate. The cooled exhaust gas is discharged through the waste outlet, and the external cold air enters the shell from the cold air inlet and is heated by the heat exchange plate, thereby introducing the hot air from the hot air outlet into the printing baking machine, and then undergoes secondary heating after passing through the heating component of the printing baking machine, thereby participating in the work; at the same time, the ink adsorbed on the heat exchange plate can be removed by the first cleaning component and the second cleaning component, so that impurities, dust, etc. fall into the aggregate shell, and then the cleaning door is opened and the aggregate shell is removed for cleaning. By adopting the structure of the present application, the residual heat in the exhaust gas of the printing and baking machine can be effectively eliminated, and the cold air is preliminarily heated before entering the printing and baking machine, thereby reducing the energy consumption required for heating, improving the energy utilization efficiency, and reducing the production cost. The exhaust gas emission after the temperature is reduced reduces the adverse impact on the environment; at the same time, the first cleaning component and the second cleaning component can clean impurities, dust, ink, etc. on the heat exchange plate, thereby avoiding excessive accumulation that affects the heating efficiency; and the cleaning door is used in combination with a detachably connected aggregate shell to facilitate cleaning.

[0007] Furthermore, a door is provided on the front side of the shell, and a slot for matching the heat exchange plate is provided facing the door. With this structure, the door can be opened and the heat exchange plate can be disassembled, assembled and replaced.

[0008] Furthermore, the first cleaning assembly and the second cleaning assembly have the same structure; the first cleaning assembly includes a screw rotatably connected to the housing, a guide rod axially parallel to the screw and arranged in the housing, a motor arranged outside the housing for driving the screw to rotate, and a brush body threadedly connected to the screw, wherein the brush body is slidably connected to the guide rod. The motor can drive the screw to rotate in any existing manner, such as: gear set transmission. Multiple screws can be provided. With this structure, the motor can drive the screw to rotate in the housing, so that the brush body threadedly connected to the screw can be displaced in coordination with the guide rod, so that the brush body cleans the surface of the heat exchange plate.

[0009] Furthermore, a sealing strip is provided on the inner side of the chamber door corresponding to the partition plate. With this structure, the gap between the chamber door and the partition plate can be sealed, thereby reducing the efficiency of waste gas with ink entering the heat release space from the heat absorption space.

[0010] Furthermore, brush bodies are provided on both the upper and lower sides of the heat exchange plate. With this structure, both the upper and lower sides of the heat exchange plate can be cleaned.

[0011] Beneficial effects: By adopting the structure of the present application, the residual heat in the exhaust gas of the printing and baking machine can be effectively eliminated, and the cold air is preliminarily heated before entering the printing and baking machine, thereby reducing the energy consumption required for heating, improving the energy utilization efficiency, and reducing the production cost. The exhaust gas emission after the temperature is reduced reduces the adverse impact on the environment; at the same time, the first cleaning component and the second cleaning component can clean impurities, dust, ink, etc. on the heat exchange plate, thereby avoiding excessive accumulation that affects the heating efficiency; and the cleaning door is used in combination with a detachably connected aggregate shell to facilitate cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic front view of the warehouse door of this embodiment;

[0013] Figure 2 is a schematic cross-sectional view of the shell of this embodiment;

[0014] Figure 3 It is a schematic top view of the brush body of this embodiment.

[0015] Figure numerals: shell 1, partition plate 2, heat exchange plate 3, exhaust gas inlet 4, cold air inlet 5, aggregate shell 6, cleaning door 7, bin door 8, screw 9, guide rod 10, motor 11, brush body 12. DETAILED DESCRIPTION

[0016] The technical solution of a waste heat recovery device for a printing and baking machine involved in the utility model will be further described in detail below in combination with embodiments.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be 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 invention can be understood according to specific circumstances.

[0018] like Figure 1 , Figure 2 , Figure 3As shown, a waste heat recovery device for a printing baking machine in this embodiment includes a shell 1, a partition plate 2 is arranged in the middle of the shell 1, and the partition plate 2 is used to divide the space in the shell 1 into a heat absorption space and a heat release space. A plurality of heat exchange plates 3 are arranged on the partition plate 2 from top to bottom, and the left end of the heat exchange plate 3 extends into the heat absorption space, and the right end of the heat exchange plate 3 extends into the heat release space; an exhaust gas inlet 4 and an exhaust gas outlet are opened on the shell 1 corresponding to the heat absorption space, and a cold air inlet 5 and a hot air outlet are opened on the shell 1 corresponding to the heat release space; a first cleaning component for cleaning the heat exchange plate 3 in the heat absorption space is arranged on the left side of the shell 1, and a second cleaning component for cleaning the heat exchange plate 3 in the heat release space is arranged on the shell 1; the two ends of the heat exchange plate 3 and the two side walls of the shell 1 form a falling space, and a collection shell 6 is detachably connected to the shell 1 corresponding to the position below the falling space, and a cleaning door 7 is opened on the shell 1 corresponding to one side of the collection shell 6. The exhaust gas outlet can be connected to the pipeline component without affecting the operation of the cold air inlet 5. A door 8 is provided on the front side of the shell 1, and a slot for matching the heat exchange plate 3 is provided facing the door 8. The structures of the first cleaning component and the second cleaning component are the same; the first cleaning component includes a screw 9 rotatably connected to the shell 1, a guide rod 10 axially parallel to the screw 9 and arranged in the shell 1, an electric motor 11 arranged outside the shell 1 for driving the screw 9 to rotate, and a brush body 12 threadedly connected to the screw 9, and the brush body 12 is slidably connected to the guide rod 10. A sealing strip is provided on the inner side of the door 8 corresponding to the partition plate 2. Brush bodies 12 are provided on both the upper and lower sides of the heat exchange plate 3. When in use, the exhaust gas inlet 4 is connected with the exhaust gas outlet of the printing dryer, and the hot air outlet is connected with the air inlet of the printing dryer. The exhaust gas discharged by the printing dryer will enter the shell 1 from the exhaust gas inlet 4, and undergo heat exchange through the heat exchange plate 3. The cooled exhaust gas is discharged through the waste outlet, and the external cold air enters the shell 1 from the cold air inlet 5 and is heated by the heat exchange plate 3, so that the hot air is introduced into the printing baking machine from the hot air outlet, and is heated again after passing through the heating component of the printing baking machine, so as to participate in the work; at the same time, the ink adsorbed on the heat exchange plate 3 can be removed by the first cleaning component and the second cleaning component, so that impurities, dust, etc. fall into the aggregate shell 6, and then the cleaning door 7 is opened and the aggregate shell 6 is removed for cleaning.By adopting the structure of the present application, the residual heat in the exhaust gas of the printing and baking machine can be effectively eliminated, and the cold air is preliminarily heated before entering the printing and baking machine, thereby reducing the energy consumption required for heating, improving the energy utilization efficiency, and reducing the production cost. The exhaust gas emission after the temperature is reduced reduces the adverse impact on the environment; at the same time, the first cleaning component and the second cleaning component can clean the impurities, dust, ink, etc. on the heat exchange plate 3, thereby avoiding excessive accumulation that affects the heating efficiency; and the cleaning door 7 is used in combination with the detachably connected aggregate shell 6 to facilitate cleaning.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for a printing and baking machine, characterized in that: It comprises a shell, a partition plate is arranged in the middle of the shell, the partition plate is used to divide the space inside the shell into a heat absorption space and a heat release space, a plurality of layers of heat exchange plates are arranged on the partition plate from top to bottom, the left end of the heat exchange plate extends into the heat absorption space, and the right end of the heat exchange plate extends into the heat release space; an exhaust gas inlet and an exhaust gas outlet are arranged on the shell corresponding to the heat absorption space, and a cold air inlet and a hot air outlet are arranged on the shell corresponding to the heat release space; a first cleaning component for cleaning the heat exchange plate in the heat absorption space is arranged on the left side of the shell, and a second cleaning component for cleaning the heat exchange plate in the heat release space is arranged on the shell; the two ends of the heat exchange plate and the two side walls of the shell form a falling space, and an aggregate shell is detachably connected to the shell corresponding to the position below the falling space, and a cleaning door is arranged on the shell corresponding to one side of the aggregate shell.

2. A waste heat recovery device for a printing and baking machine according to claim 1, characterized in that: A door is arranged on the front side of the shell, and a slot matching the heat exchange plate is arranged facing the door.

3. The waste heat recovery device for a printing and baking machine according to claim 1, characterized in that: The structures of the first cleaning assembly and the second cleaning assembly are the same; the first cleaning assembly includes a screw rotatably connected to the shell, a guide rod arranged in the shell parallel to the axial direction of the screw, an electric motor arranged outside the shell for driving the screw to rotate, and a brush body threadably connected to the screw, and the brush body is slidably connected to the guide rod.

4. The waste heat recovery device for a printing and baking machine according to claim 2, characterized in that: A sealing strip is arranged on the inner side of the door corresponding to the partition plate.

5. The waste heat recovery device for a printing and baking machine according to claim 3 is characterized in that: Brush bodies are arranged on both the upper and lower sides of the heat exchange plate.

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