阅读说明：本技术 印刷复合机减风增浓系统 (Printing compounding machine air-reducing thickening system ) 是由 吴卫江 吴健 于 2019-12-09 设计创作，主要内容包括：本发明公开了一种印刷复合机减风增浓系统,包括U型管道,U型管道的两侧排布有多台烘箱与送风结构,每台烘箱对应一组送风结构,每组送风结构包括第一风机、第二风机和一个加热箱,第一风机将烘箱内的热风抽出并送入U型管道,第二风机抽取新风并将风加热送入烘箱。本发明占地空间小,能够将前一组烘箱抽出的热风回流至下一组烘箱中,实现热能的循环使用,减少能耗,降低排风流量,增加排风中溶剂浓度,提高烘干效率。(The invention discloses a wind-reducing and thickening system of a printing compound machine, which comprises a U-shaped pipeline, wherein a plurality of drying ovens and air supply structures are arranged on two sides of the U-shaped pipeline, each drying oven corresponds to one group of air supply structures, each group of air supply structures comprises a first fan, a second fan and a heating box, the first fan extracts hot air in the drying ovens and sends the hot air into the U-shaped pipeline, and the second fan extracts fresh air and heats the air and sends the air into the drying ovens. The invention has small occupied space, can reflux the hot air pumped by the previous group of drying ovens into the next group of drying ovens, realizes the recycling of heat energy, reduces energy consumption, reduces exhaust flow, increases the concentration of a solvent in exhaust air and improves drying efficiency.)

1. The air reducing and thickening system of the printing compound machine is characterized by comprising a U-shaped pipeline, a plurality of drying ovens (7) and a plurality of groups of air supply structures, wherein each drying oven (7) is correspondingly connected with one group of air supply structures, the drying ovens (7) and the air supply structures are arranged on two sides of the U-shaped pipeline, the U-shaped pipeline comprises a ground exhaust pipeline (1) and a main exhaust pipeline (2), the ground exhaust pipeline (1) is positioned below the main exhaust pipeline (2), one end of the ground exhaust pipeline (1) is sealed, and the other end of the ground exhaust pipeline is connected with the main exhaust pipeline (2) through a connecting pipe (3) to form the U-shaped pipeline; each group of air supply structures comprises a first fan (4), a second fan (5) and a heating box (6), an air inlet of the first fan (4) is connected with a movable air outlet pipe (8), the movable air outlet pipe (8) is connected with an air outlet of a movable part of the oven (7) through a hose, one side of the movable air outlet pipe (8) is connected with a fixed air outlet pipe (9), the fixed air outlet pipe (9) is connected with an air outlet of a fixed part of the oven (7), and an air outlet of the first fan (4) is connected into the main exhaust pipeline (2) through a return pipe (11); an air inlet of the second fan (5) is connected with the main exhaust pipeline (2), an air outlet is connected with an air inlet of the heating box (6), and an air outlet of the heating box (6) is connected with an air inlet of the drying oven (7) through an air inlet pipe (10); the bottom of each oven (7) is provided with a grinding disc, the grinding disc is provided with a through hole, and the through hole is connected with the pipeline (1) through a pipeline.

2. A printing and laminating machine wind-reducing and thickening system according to claim 1, wherein the return pipe (11) extends from the bottom of the main exhaust duct (2) and is bent at an angle of 60 ° to 120 ° in the main exhaust duct (2), and the opening of the return pipe (11) faces the air outlet of the main exhaust duct (2).

3. A printing couple machine air-reduction thickening system according to claim 2, characterized in that the return duct (11) is 90 ° bent.

4. The air reduction and concentration increase system of the printing compound machine according to claim 1, wherein the first fan (4) and the second fan (5) are variable frequency fans, and an electronic valve is arranged at an air inlet of the variable frequency motor and connected with a PC.

5. A printing press combination air-reduction and thickening system according to claim 1, wherein a damper valve is provided on the movable air inlet pipe (10), and the damper valve is a manual damper valve.

6. A printing and laminating machine air-reduction and concentration-enhancement system according to claim 1, characterized in that the air inlet of the second fan (5) is provided with a concentration detection device.

7. A printing and laminating machine air-reducing and thickening system according to claim 1, wherein the air outlet of the main exhaust duct (2) is connected with an exhaust gas burning device through a duct.

Technical Field

The invention relates to a wind-reducing and thickening system of a printing compound machine.

Background

When the printing compounding machine is used for gradually printing, each printing machine can be correspondingly provided with an oven for drying, the air inlet and the heating equipment which are required to correspond to each oven provide hot air for the oven, the air supply system which corresponds to each oven in the existing air supply system is independent, so that the air pipes are more, the air exhaust amount is larger, the content of organic solvents in the waste gas exhausted in the way is lower, the efficiency of the oven is reduced, and hot air extracted from the oven is directly exhausted, so that a large amount of heat energy loss is caused, the energy consumption of the air supply system is increased, and the production cost is improved.

Disclosure of Invention

The invention relates to a wind-reducing and thickening system of a printing compound machine, which is used for solving the problems.

In order to realize the purpose, the structure adopted by the invention is as follows: a printing compound machine air-reducing and thickening system comprises a U-shaped pipeline, a plurality of drying ovens and a plurality of groups of air supply structures, wherein each drying oven is correspondingly connected with one group of air supply structures, the drying ovens and the air supply structures are arranged on two sides of the U-shaped pipeline, the U-shaped pipeline comprises a ground exhaust pipeline and a main exhaust pipeline, the ground exhaust pipeline is positioned below the main exhaust pipeline, one end of the ground exhaust pipeline is sealed, and the other end of the ground exhaust pipeline is connected with the main exhaust pipeline through a connecting pipe to form the U-shaped pipeline; each group of air supply structures comprises a first fan, a second fan and a heating box, wherein an air inlet of the first fan is connected with a movable air outlet pipe, the movable air outlet pipe is connected with an air outlet of a movable part of the drying oven through a hose, one side of the movable air outlet pipe is connected with a fixed air outlet pipe, the fixed air outlet pipe is connected with an air outlet of a fixed part of the drying oven, and an air outlet of the first fan is connected into the main exhaust pipeline through a return pipe; the air inlet of the second fan is connected with the main exhaust pipeline, the air outlet of the second fan is connected with the air inlet of the heating box, and the air outlet of the heating box is connected with the air inlet of the drying oven through an air inlet pipe; the bottom of each oven is provided with a grinding disc, the grinding disc is provided with a through hole, and the through holes are connected with a ground pipeline through pipelines.

The return pipe extends into the main exhaust pipeline from the bottom of the main exhaust pipeline and is bent in the main exhaust pipeline at an angle of 60-120 degrees, and the opening of the return pipe faces the direction of the air outlet of the main exhaust pipeline.

The return pipe is bent for 90 degrees.

The first fan and the second fan are frequency conversion fans, an electronic valve is arranged at an air inlet of the frequency conversion motor, and the electronic valve is connected with a PC.

And the movable air inlet pipe is provided with an air door valve, and the air door valve is a manual air door valve.

And the air inlet of the second fan is provided with a concentration detection device.

And the air outlet of the main exhaust pipeline is connected with waste gas incineration equipment through a pipeline.

The beneficial effects are as follows: the invention has small occupied space, can reflux the hot air pumped by the previous group of drying ovens into the next group of drying ovens, realizes the recycling of heat energy, reduces energy consumption, reduces exhaust flow, increases the concentration of a solvent in exhaust air and improves drying efficiency.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a front view structural diagram of the present invention;

fig. 2 is a side view structural view of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 1 and 2, the air-reducing and thickening system of the printing compound machine comprises a U-shaped pipeline, a plurality of drying ovens 7 and a plurality of groups of air supply structures, wherein each drying oven 7 is correspondingly connected with one group of air supply structures, the drying ovens 7 and the air supply structures are arranged on two sides of the U-shaped pipeline, the U-shaped pipeline comprises a ground exhaust pipeline 1 and a main exhaust pipeline 2, the ground exhaust pipeline 1 is positioned below the main exhaust pipeline 2, one end of the ground exhaust pipeline 1 is sealed, and the other end of the ground exhaust pipeline is connected with the main exhaust pipeline 2 through a connecting pipe 3 to form the U-shaped pipeline; each group of air supply structures comprises a first fan 4, a second fan 5 and a heating box 6, an air inlet of the first fan 4 is connected with a movable air outlet pipe 8, the movable air outlet pipe 8 is connected with an air outlet of a movable part of the oven 7 through a hose, one side of the movable air outlet pipe 8 is connected with a fixed air outlet pipe 9, the fixed air outlet pipe 9 is connected with an air outlet of a fixed part of the oven 7, and an air outlet of the first fan 4 is connected into the main exhaust pipeline 2 through a return pipe 11; an air inlet of the second fan 5 is connected with the main exhaust pipeline 2, an air outlet of the second fan is connected with an air inlet of the heating box 6, and an air outlet of the heating box 6 is connected with an air inlet of the drying oven 7 through an air inlet pipe 10; the bottom of each oven 7 is provided with a grinding disc, the grinding disc is provided with a through hole, and the through hole is connected with the ground exhaust pipeline 1 through a pipeline. Under the blast action of the second fan, the fresh air enters the ground exhaust pipeline through the through holes in the millstones at the bottoms of the drying ovens and is sent into the main exhaust pipeline through the ground exhaust pipeline, the U-shaped pipeline can avoid airflow backflow, the fresh air starts to enter each drying oven once from the last group of air supply structures, the fresh air is heated by the heating box and then is sent into the drying ovens, the hot air with the volatile solvent is extracted by the first fan and sent into the main exhaust pipeline, the hot air circularly enters the previous group of air supply structures, and finally is discharged from an air outlet of the main exhaust pipeline.

Preferably, the return pipe 11 extends from the bottom of the main exhaust duct 2 and is bent in the main exhaust duct 2 at an angle of 60-120 degrees, and the opening of the return pipe 11 faces the air outlet of the main exhaust duct 2. The bent return pipe can avoid the hot air sent into the main discharge pipe by the first fan from generating wind leaping.

Preferably, the return pipe 11 is bent at 90 °.

Preferably, the first fan 4 and the second fan 5 are variable frequency fans, and an electronic valve is arranged at an air inlet of the variable frequency motor and connected with a PC. The electronic valve can adjust the air output of the fan under the control of the PC, and the adjustment is carried out according to the concentration of the solvent in the hot air in the main pipeline, so that the content of the solvent is prevented from exceeding the standard.

Preferably, a damper valve is arranged on the movable air inlet pipe 10, and the damper valve is a manual damper valve.

Preferably, an air inlet of the second fan 5 is provided with a concentration detection device.

Preferably, the air outlet of the main exhaust pipeline 2 is connected with a waste gas incineration device through a pipeline.

According to the invention, all air supply structure pipelines are integrated through the U-shaped pipeline, so that the space is saved, each group of fans enters the oven in a circulating reflux mode, the preheating in hot air discharged by the oven can be utilized to the maximum extent, the energy consumption of the heating box is reduced, the production cost is reduced, and the problem of unorganized emission of the fans can be solved; each group of drying oven and air supply structure is provided with an independent switch valve, so that the air quantity can be accurately controlled, the concentration of the solvent in the pipeline is adjusted, and no redundant air enters the pipeline for backflow; the fresh air is enabled to enter the first group of drying ovens once, the hot air with the volatile solvent is discharged from the air outlet of the main exhaust pipeline at the position corresponding to the first group of drying ovens, the total exhaust air volume is reduced, the concentration of the solvent in the waste gas is improved, the purposes of reducing air and increasing concentration are achieved, and the solvent residue after the raw material is printed is enabled not to exceed the standard.

The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.