Drying oven system for color cell of printing machine

Abstract

The utility model relates to a drying oven system for a color cell of a printing machine, and belongs to the technical field of environment-friendly treatment equipment. The device comprises a fresh air pipe connected with a fresh air channel; the printing machine exhaust pipe is connected with the printing machine exhaust channel; a printing machine exhaust pipe and a fresh air pipe are communicated with the air mixing unit; an air partition plate is arranged in the air mixing unit in the horizontal direction, one part of exhausted air of an exhaust pipe of the printing machine is guided to a first air outlet located in the air mixing unit through the position above the air partition plate and exhausted through the exhaust pipe, and the other part of exhausted air and fresh air introduced by a fresh air pipe are mixed in a mixing area of the air mixing unit to form circulating air which is led to the air outlet side of the mixing area. The air outlet side of the mixing area is connected with an electric heater, and an air outlet in the other side of the electric heater is connected with an air return pipe; an air outlet of the air return pipe is connected with an air inlet of a circulating fan, and an air supply pipe is arranged at an air outlet of the circulating fan. According to the utility model, the concentration of circulating air is increased, so that the drying energy consumption of printing and packaging of customers is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection processing equipment, in particular to an oven system for a color group of a printing press. Background Art

[0002] At present, various places are paying more and more attention to environmental protection, and the corresponding emission requirements are also getting higher and higher, forcing many printing and packaging manufacturers to upgrade their environmental protection equipment.

[0003] One of the mainstream treatment equipment used in printing and packaging factories is the RTO equipment (regenerative chamber oxidation furnace). The printing lines of many manufacturers have large exhaust volumes and low exhaust concentrations. Low-concentration production emissions have advantages in terms of safety, but in terms of energy consumption, the more exhaust air is produced, the higher the energy consumption of the oven. Large exhaust volumes lead to VOC concentrations that are not conducive to self-circulation. The higher the energy consumption of the RTO equipment, the higher the cumulative energy consumption of the total production equipment.

[0004] Because, in order to solve the above problems and achieve the effect of reducing air and increasing concentration, it is urgent to develop an oven system for the color group of a printing press. Utility Model Content

[0005] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides an oven system for the color group of a printing press, thereby increasing the return air volume and the concentration of the circulating air, thereby saving the drying energy consumption of the customer's printing and packaging, and also reducing the combustion energy consumption of the RTO equipment.

[0006] The technical scheme adopted by the utility model is as follows: an oven system for a color group of a printing press, comprising: a fresh air duct connected to a fresh air channel; a printing press exhaust duct connected to an exhaust channel of the printing press; the printing press exhaust duct and the fresh air duct both lead to an air mixing unit; an air partition plate is arranged horizontally inside the air mixing unit, a part of the exhaust air from the printing press exhaust duct is guided to a first air outlet located on the air mixing unit through the top of the air partition plate and discharged through the exhaust duct, and the other part of the exhaust air is mixed with the fresh air introduced into the fresh air duct in a mixing zone of the air mixing unit to form circulating air and lead to the air outlet side of the mixing zone; the second air outlet on the air outlet side of the mixing zone is connected to an electric heater, and the air outlet on the other side of the electric heater is connected to a return air duct; the air outlet of the return air duct is connected to an air inlet of a circulating fan, and an air supply duct is arranged at the air outlet of the circulating fan.

[0007] As a further improvement of the above technical solution:

[0008] Preferably, the structure of the air mixing unit is as follows: it includes a box body, a first air outlet and a fresh air outlet are provided on the top of the box body; the exhaust air of the printing press discharged from the exhaust duct of the printing press is blocked by the wind shielding plate and then discharged toward the first air outlet; it also includes an exhaust outlet connected to the exhaust duct of the printing press; the air outlet of the fresh air outlet is directly opposite to the manual valve, and the manual valve is used to control the size of the air duct opening and allow fresh air to enter the mixing zone.

[0009] Preferably, the air outlet side of the air supply duct is connected to the air inlet of the printing press, and the air supply duct delivers the mixed and heated circulating air into the printing press.

[0010] Preferably, the exhaust duct is connected to an environmental protection treatment device on the air outlet side.

[0011] Preferably, the exhaust pipe is also equipped with an exhaust valve.

[0012] Preferably, a fresh air valve is installed on the air inlet side of the fresh air duct.

[0013] Preferably, the structure of the circulation fan is as follows: it includes a fan casing, and an impeller structure for rotating and exhausting air is arranged inside the fan casing.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model has a compact structure. The air coming out of the exhaust pipe of the printing machine is divided into two paths. One of the paths is blocked by the additional wind partition plate and then discharged along the first air outlet and the exhaust pipe, and is directly discharged to the environmental protection treatment equipment; the other path forms circulating air in the mixing area with the fresh air sent in from the fresh air pipe. The circulating air passes through the electric heater and the return air pipe and is sent to the printing machine through the circulating fan, increasing the return air volume and the concentration of the circulating air, thereby saving the drying energy consumption of the customer's printing and packaging, and also reducing the combustion energy consumption of the RTO equipment; the wind partition plate mainly plays the role of dividing the return air and the exhaust air;

[0016] The utility model also has the following advantages:

[0017] The utility model is equipped with an exhaust valve on the exhaust pipe, and a fresh air valve is equipped on the air inlet side of the fresh air pipe, so that the air volume can be adjusted;

[0018] The utility model enables the air outlet of the fresh air outlet to face the manual valve, and the manual valve can control the opening size, thereby controlling the air volume of the fresh air and the exhaust air of the printing machine entering the mixing zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 for Figure 1 Side view of.

[0021] Figure 3It is a schematic diagram of the structure of the air mixing unit of the utility model.

[0022] Figure 4 It is a schematic diagram of the internal structure of the air mixing unit of the utility model.

[0023] Among them: 1. Exhaust duct; 2. Fresh air duct; 3. Mixing air unit; 4. Printing machine exhaust duct; 5. Electric heating; 6. Return air duct; 7. Circulation fan; 8. Air supply duct; 9. Exhaust valve; 10. Fresh air valve

[0024] 301. Box body; 302. First air outlet; 303. Fresh air outlet; 304. Exhaust outlet; 305. Wind baffle; 306. Second air outlet; 307. Manual valve; 308. Mixing zone. DETAILED DESCRIPTION

[0025] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0026] like Figure 1 to Figure 4 As shown, the oven system for the color group of the printing press of the present embodiment comprises: a fresh air duct 2 connected to the fresh air channel; a printing press exhaust duct 4 connected to the exhaust channel of the printing press; the printing press exhaust duct 4 and the fresh air duct 2 are both connected to the air mixing unit 3; an air baffle 305 is arranged in the horizontal direction inside the air mixing unit 3, a part of the exhaust air of the printing press exhaust duct 4 is guided to the first air outlet 302 located on the air mixing unit 3 through the top of the air baffle 305 and discharged through the exhaust duct 1, and the other part of the exhaust air is mixed with the fresh air introduced into the fresh air duct 2 in the mixing zone 308 of the air mixing unit 3 to form circulating air and is led to the air outlet side of the mixing zone 308; the second air outlet 306 on the air outlet side of the mixing zone 308 is connected to the electric heater 5, and the air outlet on the other side of the electric heater 5 is connected to the return air duct 6; the air outlet of the return air duct 6 is connected to the air inlet of the circulating fan 7, and the air supply duct 8 is arranged at the air outlet of the circulating fan 7.

[0027] In this embodiment, the structure of the air mixing unit 3 is: including a box body 301, a first air outlet 302 and a fresh air outlet 303 are opened on the top of the box body 301; the exhaust air of the printing press discharged from the printing press exhaust duct 4 is blocked by the wind baffle 305 and then discharged toward the first air outlet 302; it also includes an exhaust outlet 304 connected to the printing press exhaust duct 4; the air outlet of the fresh air outlet 303 is opposite to the manual valve 307, and the manual valve 307 is used to control the size of the air duct opening and pass the fresh air into the mixing zone 308.

[0028] In this embodiment, the air outlet side of the air supply pipe 8 is connected to the air inlet of the printing press, and the air supply pipe 8 delivers the mixed and heated circulating air into the printing press.

[0029] In this embodiment, the exhaust pipe 1 is connected to an environmental protection treatment device on the air outlet side.

[0030] In this embodiment, an exhaust valve 9 is also installed on the exhaust pipe 1.

[0031] In this embodiment, a fresh air valve 10 is installed on the air inlet side of the fresh air duct 2 .

[0032] In this embodiment, the structure of the circulation fan 7 is as follows: it includes a fan housing, and an impeller structure for rotating and exhausting air is arranged inside the fan housing.

[0033] In actual work, the working method of the utility model is as follows:

[0034] The printing press exhaust duct 4 delivers the printing press exhaust air into the air mixing unit 3, and the printing press exhaust air is divided into two paths after entering the air mixing unit 3;

[0035] One of the paths enters the air mixing unit 3 and is blocked by the air baffle 305, and is guided along the air baffle 305 and discharged directly from the exhaust pipe 1 into the environmental protection treatment equipment;

[0036] Another route of printing press exhaust air and the fresh air introduced into the fresh air duct 2 are introduced into the mixing area 308, where they are mixed to form circulating air. The circulating air passes through the electric heater 5 and the return air duct 6 in turn, and is then introduced into the supply air duct 8 by the circulating fan 7 and returned to the printing press.

[0037] The utility model has a reasonable structure and is easy to operate. The circulating air passes through the electric heater 5 and the return air duct 6 and then is sent to the printing machine through the circulating fan 7, which can increase the return air volume and the concentration of the circulating air, thereby saving the drying energy consumption of the customer's printing and packaging, and can also reduce the combustion energy consumption of the RTO equipment; the utility model plays the role of separating the return air from the exhaust air by adding an air partition plate 305.

[0038] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. An oven system for a color group of a printing press, characterized in that: include: A fresh air duct (2) connected to the fresh air passage; A printing press exhaust pipe (4) connected to the printing press exhaust passage; The printing press exhaust pipe (4) and the fresh air pipe (2) are both connected to the air mixing unit (3); An air baffle (305) is arranged in the horizontal direction inside the air mixing unit (3); a portion of the exhaust air from the exhaust pipe (4) of the printing press is guided to the first air outlet (302) located on the air mixing unit (3) through the upper side of the air baffle (305) and discharged through the exhaust pipe (1); another portion of the exhaust air is mixed with the fresh air introduced from the fresh air pipe (2) in the mixing area (308) of the air mixing unit (3) to form circulating air and is directed to the air outlet side of the mixing area (308); The second air outlet (306) on the air outlet side of the mixing zone (308) is connected to the electric heater (5), and the air outlet on the other side of the electric heater (5) is connected to the return air duct (6); the air outlet of the return air duct (6) is connected to the air inlet of the circulating fan (7), and an air supply duct (8) is provided at the air outlet of the circulating fan (7).

2. The oven system for a color group of a printing press according to claim 1, characterized in that: The structure of the air mixing unit (3) is as follows: it comprises a box body (301), the top of the box body (301) is provided with a first air outlet (302) and a fresh air outlet (303); the exhaust air of the printing press discharged from the exhaust pipe (4) of the printing press is blocked by the air baffle plate (305) and then discharged toward the first air outlet (302); It also includes an exhaust port (304) connected to the exhaust pipe (4) of the printing press; The air outlet of the fresh air port (303) is directly opposite to the manual valve (307), and the manual valve (307) is used to control the size of the air duct opening and pass the fresh air into the mixing zone (308).

3. The oven system for a color group of a printing press according to claim 1, characterized in that: The air outlet side of the air supply pipe (8) is connected to the air inlet of the printing press, and the air supply pipe (8) delivers the mixed and heated circulating air into the printing press.

4. The oven system for a color group of a printing press according to claim 1, characterized in that: The exhaust pipe (1) is connected to environmental protection treatment equipment on the air outlet side.

5. The oven system for a color group of a printing press according to claim 1, characterized in that: The exhaust pipe (1) is also equipped with an exhaust valve (9).

6. The oven system for a color group of a printing press according to claim 1, characterized in that: The air inlet side of the fresh air duct (2) is equipped with a fresh air valve (10).

7. The oven system for a color group of a printing press according to claim 1, characterized in that: The structure of the circulating fan (7) is as follows: it comprises a fan housing, and an impeller structure for rotating and exhausting air is arranged inside the fan housing.

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