Environment-friendly treatment equipment for printing waste gas

Abstract

The utility model discloses printing waste gas environment-friendly treatment equipment which comprises a rectangular shell, a gas inlet pipeline and a gas outlet pipeline are connected to the rectangular shell, an exhaust fan is arranged in the gas outlet pipeline, and the interior of the rectangular shell is sequentially divided into a first containing cavity, a second containing cavity and a third containing cavity from bottom to top through a first baffle and a second baffle. The first baffle is arranged below the second baffle; a plurality of spraying devices are arranged in the first containing cavity, a plurality of filtering devices are arranged in the second containing cavity, a plurality of UV light lamp tubes are arranged at the top of the third containing cavity, two spiral baffles are vertically connected to the upper plate face of the second baffle, the spiral baffles are mutually nested to form a double-spiral-structure channel, and the top faces of the spiral baffles are tightly attached to the rectangular shell. The waste gas treatment device treats waste gas through the three treatment assemblies, the waste gas is more thoroughly purified, meanwhile, due to the arrangement of the spiral baffle, the waste gas circularly flows in the device, the contact time of the waste gas and UV light is prolonged, and the purification effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, in particular to environmentally friendly printing waste gas treatment equipment. Background Art

[0002] Printing machines generate a large amount of waste gas during the printing process, which mainly contains VOCs (volatile organic compounds) and other harmful gases, such as benzene, formaldehyde, ammonia and other toxic and harmful gases. These substances are highly volatile at room temperature and easily diffuse into the air, causing pollution to the atmospheric environment.

[0003] In order to meet these challenges, printing waste gas treatment technology has been continuously developed. Traditional treatment methods include physical, chemical and biological methods. Physical methods mainly use adsorption, condensation, filtration and other means; chemical methods transform or decompose pollutants through chemical reactions such as combustion, oxidation, catalysis, etc.; biological methods use the metabolism of microorganisms to remove pollutants. However, there are still many deficiencies in the design of printing waste gas treatment equipment.

[0004] For example, the utility model with patent application number CN201822052014.4 discloses a waste gas treatment system device for printing equipment, which includes a pretreatment box and a washing tower. An upper cover is fixedly installed on the upper end of the pretreatment box, and an air duct is provided at one end of the pretreatment box. An induced draft fan is fixedly installed on one side of the interior of the pretreatment box, and the waste gas is introduced into the pretreatment box and the washing tower through the induced draft fan for treatment and then discharged. However, the device occupies too large an area, and the treatment means are relatively simple. The use of the induced draft fan will cause gas to enter the device continuously, which may cause the waste gas to be discharged into the air without being completely purified. Utility Model Content

[0005] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0006] In order to achieve these purposes and other advantages according to the utility model, a printing waste gas environmental protection treatment device is provided, comprising:

[0007] A rectangular shell, an air inlet duct and an air outlet duct are connected to the rectangular shell, an exhaust fan is arranged in the air outlet duct, a first baffle and a second baffle are arranged inside the rectangular shell from bottom to top, and the rectangular shell is divided into a first cavity, a second cavity and a third cavity from bottom to top, one end of the first baffle and the second baffle are connected to the rectangular shell, and a vent is left between the other end and the rectangular shell;

[0008] A spray assembly, comprising a plurality of spray devices disposed in the first cavity;

[0009] A filter assembly, comprising a plurality of filter devices disposed in the second chamber;

[0010] The UV lighting component includes a plurality of UV light tubes arranged on the top of the third cavity. Two spiral baffles are vertically connected on the upper surface of the second baffle. The spiral baffles are nested with each other to form a double helix structure channel. The top surface of the spiral baffle is tightly fitted with the rectangular shell.

[0011] Preferably, the rectangular housing is provided with two doors on the sides and one door on the top.

[0012] Preferably, the spray device is arranged on the lower plate surface of the first baffle plate, a groove is arranged at the bottom of the first cavity, a water storage box is placed in the groove, two water baffle plates inclined at 45 degrees are connected on both sides of the groove, and the other end of the water baffle plate is connected to the rectangular shell.

[0013] Preferably, a plurality of mounting grooves are provided on the upper surface of the first baffle plate and the lower surface of the second baffle plate, the mounting grooves are aligned vertically, the filter device is fixedly connected in the mounting grooves, and the filter device is a mesh structure made of activated carbon.

[0014] Preferably, a water tank is arranged outside the rectangular shell, a water inlet pipe is arranged on the water tank, and the water inlet pipe passes through the rectangular shell and is connected to the spray device.

[0015] The utility model at least has the following beneficial effects:

[0016] 1. The utility model performs triple treatment on printing waste gas through a spray component, a filter component and a UV light component, which can purify waste gas with complex components more completely.

[0017] 2. By setting the spiral baffle inside the equipment, the residence time of the exhaust gas in the equipment is increased, so that the contact time between the exhaust gas and the UV light component is increased, thereby enhancing the purification effect.

[0018] 3. The utility model has a compact structure and occupies a small area. The setting of the box door can facilitate the inspection and replacement of the exhaust gas treatment components in the equipment.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 This is the structural diagram of the utility model;

[0022] Figure 3This is the structural diagram of the spiral baffle;

[0023] Figure 4 This is the layout diagram of UV light tubes. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0025] It should be understood that terms such as “having”, “including” and “comprising” used herein do not specify the existence or addition of one or more other elements or combinations thereof.

[0026] It should be noted that in the description of the present invention, the orientation or position relationship indicated by the term is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0028] In addition, in the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Figure 1-Figure 4 The utility model shows a printing waste gas environmental protection treatment equipment, which includes:

[0030] A rectangular housing 1, to which an air inlet duct 2 and an air outlet duct 3 are connected, an exhaust fan 19 is arranged in the air outlet duct 3, a first baffle 7 and a second baffle 8 are arranged from bottom to top inside the rectangular housing 1, and the rectangular housing 1 is divided into a first cavity 9, a second cavity 10 and a third cavity 11 from bottom to top, one end of the first baffle 7 and the second baffle 8 are connected to the rectangular housing 1, and a vent is left between the other end and the rectangular housing 1;

[0031] A spray assembly, comprising a plurality of spray devices 12 disposed in the first cavity 9;

[0032] A filter assembly, comprising a plurality of filter devices 17 disposed in the second chamber 10;

[0033] The UV lighting assembly includes a plurality of UV light tubes 20 arranged on the top of the third cavity 11. Two spiral baffles 18 are vertically connected to the upper surface of the second baffle 8. The spiral baffles 18 are nested with each other to form a double-helix structure channel. The top surface of the spiral baffle 18 fits tightly with the rectangular shell 1. Working principle: Turn on the exhaust fan 19, and the printing exhaust gas enters the first cavity 9 of the rectangular shell 1 through the air inlet pipe 2. The spray device 12 starts to work, and the exhaust gas contacts with water to discharge some solid particles in the exhaust gas. At the same time, some water-soluble harmful substances in the exhaust gas combine with water to purify the exhaust gas. Then the exhaust gas enters the second cavity 10 of the rectangular shell 1 through the vent. The harmful substances in the exhaust gas are filtered out by the filter device 17. Then the exhaust gas enters the third cavity 11 of the rectangular shell 1 through the vent and passes through the two spiral baffles 18. The double helix structure channel is formed, and the outermost sides of the two spiral baffles 18 are tightly fitted with the rectangular shell 1. The UV light tube 20 fully irradiates the exhaust gas in the double helix channel below. The UV light can directly destroy the chemical bonds of the organic pollutant molecules in the exhaust gas, causing them to decompose, and has a certain purification effect on the exhaust gas. At the same time, the double helix structure channel formed by the two spiral baffles 18 changes the airflow direction of the exhaust gas, increases the contact time between the exhaust gas and the UV light, and improves the purification effect. Finally, the completely purified exhaust gas is discharged from the rectangular shell 1 through the exhaust pipe 3.

[0034] In the above technical solution, two doors 4 are provided on the side of the rectangular housing 1, and one door 4 is provided on the top surface. In this way, the rectangular housing 1 is provided with doors 4, so that the components in the rectangular housing 1 can be maintained at any time, and the equipment can be cleaned at the same time, thereby extending the service life of the equipment.

[0035] In the above technical solution, the spray device 12 is arranged on the lower plate surface of the first baffle plate 7, a groove 13 is arranged at the bottom of the first cavity 9, a water storage box 14 is placed in the groove 13, two water baffle plates 15 inclined at 45 degrees are connected to the two sides of the groove 13, and the other end of the water baffle plate 15 is connected to the rectangular shell 1. In this way, when the exhaust gas passes through the first cavity 9 of the rectangular shell 1, harmful substances fall on the water baffle plate 15 when dissolved in water, and because of the inclined setting of the water baffle plate 15, the waste water can directly enter the water storage tank 14, which is convenient for timely recycling and treatment.

[0036] In the above technical solution, a plurality of mounting grooves 16 are arranged on the upper plate surface of the first baffle plate 7 and the lower plate surface of the second baffle plate 8, the mounting grooves 16 are aligned up and down, the filter device 17 is fixedly connected in the mounting grooves 16, and the filter device 17 is a mesh structure made of activated carbon. In this way, the arrangement of the mounting grooves 16 can better fix the filter device 17, and facilitate the disassembly and maintenance of the filter device 17. When the exhaust gas enters the second volume 10 of the rectangular housing 1, the activated carbon can absorb harmful substances in the exhaust gas, and has a good purification effect on the exhaust gas.

[0037] In the above technical solution, a water tank 5 is arranged outside the rectangular housing 1, and a water inlet pipe 6 is arranged on the water tank 5, and the water inlet pipe 6 passes through the rectangular housing 1 and is connected to the spray device 12. In this way, when the spray device 12 is working, the water in the water tank 5 can smoothly enter the spray device 12 through the setting of the water inlet pipe 6, ensuring that the spray device 12 can work normally and purify the exhaust gas, and the water tank 5 can be filled with water at any time.

[0038] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A printing waste gas environmental protection treatment equipment, characterized in that: include: A rectangular shell, an air inlet duct and an air outlet duct are connected to the rectangular shell, an exhaust fan is arranged in the air outlet duct, a first baffle and a second baffle are arranged inside the rectangular shell from bottom to top, and the rectangular shell is divided into a first cavity, a second cavity and a third cavity from bottom to top, one end of the first baffle and the second baffle are connected to the rectangular shell, and a vent is left between the other end and the rectangular shell; A spray assembly, comprising a plurality of spray devices disposed in the first cavity; A filter assembly, comprising a plurality of filter devices disposed in the second chamber; The UV lighting component includes a plurality of UV light tubes arranged on the top of the third cavity. Two spiral baffles are vertically connected on the upper surface of the second baffle. The spiral baffles are nested with each other to form a double helix structure channel. The top surface of the spiral baffle is tightly fitted with the rectangular shell.

2. The printing waste gas environmental protection treatment equipment according to claim 1, characterized in that: The rectangular housing is provided with two doors on the side surface and one door on the top surface.

3. The environmental protection treatment equipment for printing waste gas according to claim 1, characterized in that: The spray device is arranged on the lower plate surface of the first baffle plate, a groove is arranged at the bottom of the first cavity, a water storage box is placed in the groove, two baffle plates inclined at 45 degrees are connected to both sides of the groove, and the other end of the baffle plate is connected to the rectangular shell.

4. The environmental protection treatment equipment for printing waste gas according to claim 1, characterized in that: A plurality of mounting grooves are provided on the upper surface of the first baffle plate and the lower surface of the second baffle plate. The mounting grooves are aligned vertically. The filter device is fixedly connected in the mounting grooves. The filter device is a mesh structure made of activated carbon.

5. The environmental protection treatment equipment for printing waste gas according to claim 1, characterized in that: A water tank is arranged outside the rectangular shell, and a water inlet pipe is connected to the water tank. The water inlet pipe penetrates the rectangular shell and is connected to the spray device.

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