Integral overlapping drying equipment

Abstract

The invention relates to integral overlapping drying equipment which is characterized by comprising a box body (10), a blowing unit (60) and a hot pump device (80), wherein the box body (10) comprises a drying box cover (20) and a base (50); the drying box cover (20) is internally provided with drying cavities (13) and recovering cavities (14) which are mutually connected end to end and; the blowing unit (60) comprises a blower (30) and is internally provided with a wind inlet passage (63), a wind discharge passage (64) and a wind outlet passage (68); the hot pump device (80) comprises a hot pump compressor (89), a hot pump throttle valve (87), an evaporation condenser (85), a hot pump condenser (88), a refrigeration compressor (99), a refrigeration evaporator (96) and a refrigeration throttle valve (97) to form a hot pump system and a refrigeration system; and the hot pump system and the refrigeration system are overlapped by the evaporation condenser (85) to form the hot pump devicetogether. The integral overlapping drying equipment is widely suitable for processing equipment for drying thin strip-shaped objects continuously traveling and has the advantages of simplified structure, small volume, zero waste gas discharge and energy consumption reduction.

Description

technical field [0001] The invention relates to a cascading and integrated drying equipment, which is suitable for drying continuously traveling thin strip objects (hereinafter referred to as printed products), and is widely used in coating machines, compound machines, printing machines, roller coating lines, gluing machines, etc. Similar to processing equipment, it can also be used to dry continuously conveyed items. It belongs to the technical field of drying equipment such as printing and coating. Background technique [0002] At present, the processing equipment for thin strip objects generally has the following characteristics: the printed product is a thin strip object that travels continuously, such as plastic film, thin metal plate, etc. Continuous processing in the process. The surface of the processed product or product substrate is first covered with one or more layers of substances, such as ink, paint, glue, etc., using the transfer device of the equipment, and...

AI Technical Summary

Problems solved by technology

However, this improvement scheme still has the following problems: 1. In order to control the cost of the device, the waste gas flow rate needs to be reduced, resulting in a more prominent explosion hazard; 2. In the process of waste gas treatment, a huge amount of additional energy is consumed, and the operating cost is high; 3. Activated carbon or activated carbon fiber is a consumable, which needs to be replaced regularly, resulting in an increase in cost and affecting production; 4. The desorption process will cause water pollution; the equipment is complex and bulky, occupying more valuable production sites, and causing more damage to the renovation project. 5. It does not help to improve product quality and avoid environmental impact on the production process

[0017] To sum up, the current drying equipment has the following disadvantages: 1. The drying gas enters and exits at the same time, which is difficult to meet the drying process requirements

2. The air blowing stroke is short, the air flow is small, the drying efficiency is low, the box is too long, and the control is difficult

3. Low heat utilization efficiency, excessive energy consumption and high operating costs

4. The air duct is complex and has many interfaces, the gas is easy to leak, the fan noise is loud, and the environmental protection is poor

5. The structure is complex, bulky, consumes a lot of steel, and the manufacturing cost is high

6. It is troublesome to install and transport, the cost is high, and it takes up a lot of space in the factory building

7. Organic solvents are harmful to the human body and the environment, and direct discharge will cause pollution

8. There are extremely economically valuable organic solvents and a large amount of heat in the exhaust gas, which cannot turn waste into treasure, resulting in high production consumption and reduced processing efficiency

9. In order to reduce the energy consumption of heating air, it is necessary to reduce the flow of fresh air, but it will cause the concentration of organic vapor to exceed the explosion limit and cause an explosion accident, which poses a serious safety hazard

10. A large amount of natural air is used, which makes the processing and production subject to the climate environment. When the ambient temperature is low, the energy consumption required for heating is huge, and even the drying needs cannot be met, resulting in production shutdown

11. The dust in the natural air affects the processing quality of the product

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