Printing waste gas circulating treatment equipment

Abstract

The utility model provides printing waste gas circulating treatment equipment, which belongs to the field of printing and comprises a gas inlet pipe, a purification component used for purifying and recycling waste gas generated by printing is arranged on the gas inlet pipe, and a cleaning component used for cleaning impurities and residues generated in the cleaning process is arranged on the purification component. By arranging the purifying assembly and the cleaning assembly, gas is fed through the gas inlet pipe during use, combustible impurities in waste gas are heated and treated through the heating plate in the incinerator, the primarily treated waste gas is discharged into the purifying bin through the U-shaped pipe, and the impurities in the waste gas are subjected to adsorption treatment through the activated carbon plate; when residue precipitation is generated after long-time use, the sliding bin is pulled out to facilitate maintenance and cleaning by a user, waste gas is prevented from directly circulating from the sliding bin through the baffle plate to affect the purification effect, and the user can conveniently observe the residue deposition condition and conveniently know whether cleaning is needed or not through the high-temperature-resistant glass.

Description

A printing exhaust gas recycling treatment device Technical Field

[0001] This utility model relates to the printing field, and more specifically, to a printing waste gas recycling treatment device. Background Technology

[0002] As printing technology has evolved to meet the growing demand for knowledge transmission, mechanical printing presses have made it possible for books to become more widely available and for advertising to flourish. However, the benzene compounds and alcohols emitted during ink mixing, drying, and color fixing processes pose health risks and ecological burdens, thus driving the need for equipment to recycle and treat printing waste gases.

[0003] A search revealed that Chinese Patent Publication No. CN211551637U discloses "a dual-furnace circulating treatment device for gravure printing RTO waste gas, comprising a first circulating furnace and a second circulating furnace. The first circulating furnace has a third exhaust chamber at its upper part, with an exhaust port on the third exhaust chamber. The first circulating furnace has a first exhaust chamber in its middle part, a first intake chamber on its side, and an intake port on its upper part. The first circulating furnace has a first combustion chamber at its bottom. The second circulating furnace has a second exhaust chamber at its upper part, a second intake chamber on its side, and a second combustion chamber at its lower part. The upper part of the first exhaust chamber is connected to the second intake chamber, and the upper part of the second exhaust chamber is connected to the third exhaust chamber. The recovered organic waste gas is preheated in the first circulating furnace and then rapidly combusted in the second circulating furnace. While treating the organic waste gas through combustion, the treated waste gas that meets the standards is used for printing and drying." However, the following defects still exist:

[0004] (1) In actual use, the incinerator can decompose and remove some volatile organic compounds, particulate matter and flammable pollutants in the exhaust gas by heating at high temperature. However, due to the limitations of pyrolysis efficiency, filter adsorption capacity and complex component interaction, there are still residual substances that are difficult to completely eliminate and need to be treated in conjunction with other technologies.

[0005] (2) In actual use, when the incinerator treats waste gas, unburned particulate matter and inorganic salts in the waste gas are prone to deposit and form scale at the bottom of the furnace. The equipment is closed inside, and both manual and mechanical cleaning are difficult and time-consuming. To address this, a printing waste gas recycling treatment device is proposed. Summary of the Invention

[0006] The purpose of this utility model is to address the current situation where, in actual use, incinerators can decompose and remove some volatile organic compounds, particulate matter, and flammable pollutants from waste gas through high-temperature heating. However, due to limitations in pyrolysis efficiency, filter material adsorption capacity, and the interaction of complex components, residual substances that are difficult to completely eliminate still exist, requiring the combined use of other technologies for treatment. At the same time, during the waste gas treatment process, unburned particulate matter and inorganic salts in the waste gas are prone to deposit and form scale at the bottom of the furnace. The equipment is internally enclosed, and both manual and mechanical cleaning present practical difficulties due to the high operational difficulty and time consumption.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: a printing waste gas recycling treatment device, including an air inlet pipe, wherein the air inlet pipe is provided with a purification component for purifying and recycling the waste gas generated during printing, and the purification component is provided with a cleaning component for cleaning impurities and residues generated during the cleaning process.

[0009] The purification assembly includes an incinerator welded to one end of an air inlet pipe. Four heating plates are fixedly installed inside the incinerator. An air outlet is provided on the side of the incinerator away from the air inlet pipe. A U-shaped pipe is welded to the side of the incinerator away from the air inlet pipe and is used in conjunction with the air outlet. A purification chamber is welded to the end of the U-shaped pipe away from the incinerator. Three activated carbon plates are snapped into the interior of the purification chamber. An outflow hole is provided on the side of the purification chamber away from the U-shaped pipe.

[0010] As a preferred technical solution of this utility model, the cleaning component includes a sliding hole opened on one side of the incinerator, a sliding chamber slidably connected inside the sliding hole, four baffle plates welded inside the sliding chamber and used in conjunction with the heating plate, and several observation holes opened on one side of the sliding chamber, with high-temperature resistant glass fixedly installed inside the observation holes.

[0011] As a preferred technical solution of this utility model, an air outlet pipe is welded to the side of the purification chamber away from the U-shaped tube. The air outlet pipe is used in conjunction with the outflow hole. A fixing ring is fixedly installed inside the air outlet pipe, and an exhaust fan is fixedly installed inside the fixing ring.

[0012] As a preferred technical solution of this utility model, a high-energy UV lamp is fixedly installed inside the U-shaped tube. The number of high-energy UV lamps is four and they are evenly distributed inside the U-shaped tube. The top of the purification chamber has three opening slots and is used in conjunction with the activated carbon plate.

[0013] As a preferred technical solution of this utility model, an extension block is welded to the top of the incinerator, a warning light is fixedly installed on the top of the extension block, and a sealing strip is provided on the top of the activated carbon plate and one side of the sliding chamber.

[0014] As a preferred technical solution of this utility model, the outer wall of the incinerator is fixedly connected with a heat insulation protective plate, and the number of the heat insulation protective plates is six and they are evenly distributed on the outer wall of the incinerator.

[0015] As a preferred technical solution of this utility model, the top of the incinerator is welded with two support columns, and the top of the support columns is welded with a support ring. The two support rings are used in conjunction with the U-shaped pipe and the gas outlet pipe, respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. By setting up purification components, when in use, air is introduced through the air inlet pipe and heated by the heating plate in the incinerator to treat the combustible impurities in the waste gas. The waste gas that has been treated initially is discharged into the purification chamber through the U-shaped pipe, and the impurities in the waste gas are adsorbed by the activated carbon plate.

[0018] 2. By setting up a cleaning component, when residue accumulates after prolonged use, the sliding chamber can be pulled out for easy maintenance and cleaning. A baffle plate prevents exhaust gas from flowing directly from the sliding chamber, thus affecting the purification effect. The high-temperature resistant glass allows users to easily observe the residue accumulation and determine whether cleaning is necessary. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the printing waste gas recycling treatment equipment provided by this utility model;

[0020] Figure 2 is a schematic diagram of the structure of the heat insulation and protection plate of the printing waste gas circulation treatment equipment provided by this utility model.

[0021] Figure 3 is a left view of the printing waste gas recycling treatment equipment provided by this utility model;

[0022] Figure 4 is a three-dimensional cross-sectional view of point AA in Figure 3 of the printing waste gas recycling treatment equipment provided by this utility model.

[0023] Figure 5 is a schematic diagram of the structure of the extension block of the printing waste gas recycling treatment equipment provided by this utility model.

[0024] The diagram shows: 1. Inlet pipe; 2. Purification component; 3. Cleaning component; 201. Incinerator; 202. Heating plate; 203. Exhaust hole; 204. U-shaped pipe; 205. Purification chamber; 206. Activated carbon plate; 207. Outflow hole; 301. Sliding hole; 302. Sliding chamber; 303. Observation hole; 304. High-temperature resistant glass; 305. Barrier plate; 4. Exhaust pipe; 5. Fixing ring; 6. Exhaust fan; 7. High-energy UV lamp; 8. Opening slot; 9. Extension block; 10. Warning light; 11. Sealing strip; 12. Thermal insulation plate; 13. Support column; 14. Support ring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] As shown in Figure 1, this embodiment proposes a printing exhaust gas recycling treatment device, including an air inlet pipe 1, a purification component 2 for purifying and recycling the exhaust gas generated during printing, and a cleaning component 3 for cleaning impurities and residues generated during the cleaning process.

[0030] As shown in Figure 4, the purification component 2 includes an incinerator 201 welded to one end of the inlet pipe 1. Four heating plates 202 are fixedly installed inside the incinerator 201 for heating and purifying the exhaust gas. An exhaust port 203 is provided on the side of the incinerator 201 away from the inlet pipe 1. A U-shaped pipe 204 is welded to the side of the incinerator 201 away from the inlet pipe 1 for venting gas and is used in conjunction with the exhaust port 203. A purification chamber 205 is welded to the end of the U-shaped pipe 204 away from the incinerator 201 for further purification. Secondary purification involves three activated carbon plates 206 internally connected to the purification chamber 205 for adsorbing impurities in the waste gas. An outlet hole 207 is provided on the side of the purification chamber 205 away from the U-shaped pipe 204 for exhaust. During use, air is introduced through the air inlet pipe 1 and heated by the heating plate 202 in the incinerator 201 to treat combustible impurities in the waste gas. The waste gas that has undergone primary treatment is discharged into the purification chamber 205 through the U-shaped pipe 204, where the activated carbon plates 206 adsorb and treat the impurities in the waste gas.

[0031] As shown in Figures 2 and 4, the cleaning component 3 includes a sliding hole 301 on one side of the incinerator 201. A sliding chamber 302 is slidably connected inside the sliding hole 301 for easy removal. Four baffle plates 305 are welded inside the sliding chamber 302 and used in conjunction with the heating plate 202 to block the rapid outflow of exhaust gas. Several observation holes 303 are provided on one side of the sliding chamber 302. High-temperature resistant glass 304 is fixedly installed inside the observation holes 303 for observing the residue deposition. During use, when residue accumulates after prolonged use, the sliding chamber 302 can be pulled out for easy maintenance and cleaning by the user. The baffle plates 305 prevent exhaust gas from flowing directly from the sliding chamber 302, which would affect the purification effect. The high-temperature resistant glass 304 allows the user to easily observe the residue deposition and determine whether cleaning is necessary.

[0032] As shown in Figure 5, an exhaust pipe 4 is welded to the side of the purification chamber 205 away from the U-shaped tube 204. The exhaust pipe 4 is used in conjunction with the outflow hole 207. A fixing ring 5 is fixedly installed inside the exhaust pipe 4, and an exhaust fan 6 is fixedly installed inside the fixing ring 5. When in use, exhaust is discharged through the exhaust pipe 4, and the exhaust fan 6 provides power for the flow of waste gas in the device, thereby realizing the flow of waste gas.

[0033] As shown in Figure 4, four high-energy UV lamps 7 are fixedly installed inside the U-shaped tube 204 and are evenly distributed inside the U-shaped tube 204. The top of the purification chamber 205 has three opening slots 8, which are used in conjunction with the activated carbon plate 206. During use, the exhaust fan 6, in conjunction with the U-shaped tube 204, can extend the residence time of the exhaust gas. The continuous irradiation by the high-energy UV lamps 7 directly breaks down the molecular chains of organic waste gas through photolysis, destroying their chemical bonds and degrading high-molecular pollutants into low-molecular substances such as CO2 and H2O, which are then easily adsorbed by the activated carbon plate 206.

[0034] As shown in Figure 5, an extension block 9 is welded to the top of the incinerator 201. A warning light 10 is fixedly installed on the top of the extension block 9. A sealing strip 11 is provided on the top of the activated carbon plate 206 and one side of the sliding chamber 302. When in use, the warning light 10 warns others to prevent them from getting too close and causing an accident. The sealing strip 11 strengthens the sealing and prevents the exhaust gas from flowing out.

[0035] As shown in Figure 5, six heat-insulating protective plates 12 are fixedly connected to the outer wall of the incinerator 201 and are evenly distributed on the outer wall of the incinerator 201. In use, the heat-insulating protective plates 12 prevent others from accidentally touching the incinerator 201 and being burned.

[0036] As shown in Figure 5, two support columns 13 are welded to the top of the incinerator 201. Support rings 14 are welded to the top of the support columns 13. The two support rings 14 are used in conjunction with the U-shaped tube 204 and the gas outlet pipe 4, respectively. When in use, the support rings 14 support the U-shaped tube 204 and the gas outlet pipe 4, thereby extending the service life of the device.

[0037] Specifically, when this printing waste gas recycling treatment equipment is in use: air is introduced through the inlet pipe 1, heated by the heating plate 202 in the incinerator 201 to treat combustible impurities in the waste gas, and the initially treated waste gas is discharged into the purification chamber 205 through the U-shaped pipe 204. The impurities in the waste gas are adsorbed by the activated carbon plate 206 (as shown in Figure 4). When residue settles after long-term use, the sliding chamber 302 can be pulled out for easy maintenance and cleaning by the user. The baffle plate 305 prevents waste gas from flowing directly from the sliding chamber 302, which would affect the purification effect. The high-temperature resistant glass 304 allows the user to easily observe the residue deposition and understand whether cleaning is needed (as shown in Figures 2 and 4). The exhaust is discharged through the outlet pipe 4, and the exhaust fan 6 provides power for the waste gas circulation in the device to achieve waste gas circulation (as shown in Figure 5).

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A printing waste gas recycling treatment device, comprising an air inlet pipe (1), characterized in that, The air inlet pipe (1) is provided with a purification component (2) for purifying and recycling the waste gas generated during printing. The purification component (2) is provided with a cleaning component (3) for cleaning the impurities and residues generated during the cleaning process. The purification component (2) includes an incinerator (201) welded to one end of the air inlet pipe (1). Four heating plates (202) are fixedly installed inside the incinerator (201). An exhaust hole (203) is opened on the side of the incinerator (201) away from the air inlet pipe (1). A U-shaped pipe (204) is welded to the side of the incinerator (201) away from the air inlet pipe (1) and used in conjunction with the exhaust hole (203). A purification chamber (205) is welded to the end of the U-shaped pipe (204) away from the incinerator (201). Three activated carbon plates (206) are snapped into the inside of the purification chamber (205). An outflow hole (207) is opened on the side of the purification chamber (205) away from the U-shaped pipe (204).

2. The printing waste gas recycling treatment equipment according to claim 1, characterized in that, The cleaning component (3) includes a sliding hole (301) opened on one side of the incinerator (201). A sliding chamber (302) is slidably connected inside the sliding hole (301). Four baffles (305) are welded inside the sliding chamber (302) and used in conjunction with the heating plate (202). Several observation holes (303) are opened on one side of the sliding chamber (302). High-temperature resistant glass (304) is fixedly installed inside the observation holes (303).

3. The printing waste gas recycling treatment equipment according to claim 1, characterized in that, The purification chamber (205) is welded with an air outlet pipe (4) on the side away from the U-shaped tube (204). The air outlet pipe (4) is used in conjunction with the outflow hole (207). A fixing ring (5) is fixedly installed inside the air outlet pipe (4), and an exhaust fan (6) is fixedly installed inside the fixing ring (5).

4. The printing waste gas recycling treatment equipment according to claim 1, characterized in that, The U-shaped tube (204) is fixedly installed with a high-energy UV lamp (7). There are four high-energy UV lamps (7) and they are evenly distributed inside the U-shaped tube (204). The top of the purification chamber (205) is provided with three opening slots (8) and is used in conjunction with the activated carbon plate (206).

5. The printing waste gas recycling treatment equipment according to claim 2, characterized in that, An extension block (9) is welded to the top of the incinerator (201), and a warning light (10) is fixedly installed on the top of the extension block (9). A sealing strip (11) is provided on the top of the activated carbon plate (206) and on one side of the sliding chamber (302).

6. The printing waste gas recycling treatment equipment according to claim 1, characterized in that, The outer wall of the incinerator (201) is fixedly connected with a heat insulation protective plate (12), and the number of the heat insulation protective plates (12) is six and they are evenly distributed on the outer wall of the incinerator (201).

7. The printing waste gas recycling treatment equipment according to claim 1, characterized in that, The top of the incinerator (201) is welded with two support columns (13), and the top of the support columns (13) is welded with support rings (14). The two support rings (14) are used in conjunction with the U-shaped tube (204) and the gas outlet pipe (4), respectively.

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