Closed exhaust mechanism of film printing machine

Abstract

The utility model relates to the technical field of film printing machines, in particular to a closed exhaust mechanism of a film printing machine. The closed exhaust mechanism of the film printing machine comprises a first dust falling tank, a second dust falling tank and a gathering tank which are communicated in sequence; according to the closed exhaust mechanism of the thin film printing machine, the first dust falling tank, the second dust falling tank and the gathering tank are installed, and the first dust falling tank, the second dust falling tank and the gathering tank are sequentially communicated; and the first dust falling tank and the second dust falling tank can settle and recycle the printing ink particles in the polluted air according to different specific gravities of the printing ink particles in the polluted air and the air, and secondary recycling can be achieved without retreatment in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of film printing machines, in particular to a closed exhaust mechanism for a film printing machine. Background Art

[0002] Ink printing machines need to use solvent-based inks when in use. The inks used contain a large amount of aromatic hydrocarbon toxic solvents, which are not only toxic but also volatile.

[0003] When the ink printing machine is running, the ink solvent used will volatilize and be discharged from the exhaust port of the printing machine along with the air, forming air pollutants; the air pollutants formed will not only cause air pollution near the printing machine, causing physical and mental harm to the operators, but also easily cause dust pollution and cause explosions; therefore, the air needs to be purified;

[0004] At present, the exhaust gas treatment generally adopts the method of exhaust system combined with dry filter. The exhaust system drains the polluted air and transports it to the inside of the dry filter, and the inside of the dry filter is filled with activated carbon. The activated carbon can adsorb and purify the introduced polluted air, so that the polluted air meets the environmental protection standards before being discharged;

[0005] However, this treatment method also has some defects. For example, when the activated carbon in the dry filter adsorbs the ink particles, the ink particles cannot be recycled later. Moreover, the activated carbon used for adsorption will gradually lose its adsorption and purification effect after a period of use, and needs to be replaced from time to time, which is troublesome.

[0006] In view of the problems in the above background technology, the utility model aims to provide a closed exhaust mechanism for a film printing machine. Utility Model Content

[0007] The utility model aims to provide a closed exhaust mechanism for a film printing machine to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A closed exhaust mechanism for a film printing machine, the closed exhaust mechanism for the film printing machine comprising:

[0010] A first dust reduction tank, a second dust reduction tank and a gathering tank, the first dust reduction tank, the second dust reduction tank and the gathering tank are connected in sequence; wherein, one side of the first dust reduction tank is connected to the air inlet pipe, and one side of the air inlet pipe is connected to the exhaust port of the printing press; a mixing box is installed on the upper end of the second dust reduction tank, and a first exhaust pipe is provided at one end of the first dust reduction tank, and the first exhaust pipe provided at one end of the first dust reduction tank is connected to one end of the mixing box; one end of the mixing box is connected to the second exhaust pipe, and one end of the second exhaust pipe is connected to the inside of the gathering tank; at the same time, the other side of the upper end of the gathering tank is connected to the feed pipe.

[0011] As a further solution of the utility model: partitions are installed in the first dust reduction tank in an upper and lower staggered manner, and a dust reduction chamber is formed between adjacent partitions; at the same time, the lower end of the first dust reduction tank is funnel-shaped, and the bottom end of the first dust reduction tank is connected to the collecting pipe.

[0012] As a further solution of the utility model: the first exhaust pipe is L-shaped, one end of the first exhaust pipe is connected to the interior of the first dust reduction tank, and the other end of the first exhaust pipe extends into the interior of the second dust reduction tank; the part of the first exhaust pipe located inside the second dust reduction tank forms a downpipe, and the bottom end of the downpipe is connected to the diffusion pipe, and the diffusion pipes are arranged horizontally at the bottom end of the second dust reduction tank; at the same time, one side of the upper end of the second dust reduction tank is also connected to the second exhaust pipe.

[0013] As a further solution of the utility model: a neutralization chamber is formed inside the aggregation tank, the bottom end of the aggregation tank is connected to the discharge pipe, and one side of the discharge pipe is connected to the discharge pipe; at the same time, a rotating shaft is rotatably installed inside the neutralization chamber, the lower end of the rotating shaft is rotatably installed inside the discharge pipe, and the upper end of the rotating shaft is connected to the middle position of the rotating blade; the rotating blade is rotatably installed at the upper end position inside the neutralization chamber.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The closed exhaust mechanism of the film printing machine has the following advantages:

[0016] First, the first dust reduction tank, the second dust reduction tank and the gathering tank are installed, and the first dust reduction tank, the second dust reduction tank and the gathering tank are connected in sequence; the first dust reduction tank and the second dust reduction tank can realize sedimentation and recovery of ink particles in the polluted air according to the different specific gravity of ink particles in the polluted air and air, and can realize secondary recycling without further treatment in the later stage;

[0017] 2. In order to ensure that the polluted air finally discharged meets the purification emission standards, neutralizers are introduced through the set aggregation tank in the later stage to neutralize the polluted air. The set aggregation tank uses wind pressure to push the rotating blades to mix the pollutants and the neutralizers, thereby achieving a low-energy consumption operation mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0019] Figure 1 The present invention is a schematic structural diagram of a closed exhaust mechanism for a film printing machine according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of a first dust suppression tank of a closed exhaust mechanism of a film printing machine according to an embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of a second dust reduction tank of a closed exhaust mechanism of a film printing machine according to an embodiment of the utility model.

[0022] Figure 4 This is a schematic diagram of the internal structure of a gathering tank of a closed exhaust mechanism of a film printing machine according to an embodiment of the utility model.

[0023] In the figure: 1-intake pipe, 2-first dust reduction tank, 3-collecting pipe, 4-first exhaust pipe, 5-mixing box, 6-second dust reduction tank, 7-second exhaust pipe, 8-collecting tank, 9-discharge pipe, 10-down pipe, 11-partition, 12-dust reduction chamber, 13-down pipe, 14-diffuser, 15-neutralization chamber, 16-rotating blades, 17-rotating shaft, 18-feed pipe. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] Example

[0026] See also Figure 1 and Figure 4 , a film printing machine closed exhaust mechanism provided in an embodiment of the utility model, the film printing machine closed exhaust mechanism comprises:

[0027] A first dust reduction tank 2, a second dust reduction tank 6 and a gathering tank 8, wherein the first dust reduction tank 2, the second dust reduction tank 6 and the gathering tank 8 are connected in sequence, and the first dust reduction tank 2 is used to perform the first ink particle deposition on the polluted air mixed with ink particles generated when the film printing machine is exhausted; and the installed second dust reduction tank 6 is used to perform the second ink particle deposition on the polluted air; and the connected gathering tank 8 is used to pass the neutralizer into the polluted air after the two ink particle depositions for neutralization reaction;

[0028] One side of the first dust reduction tank 2 is connected to the air inlet pipe 1, and one side of the air inlet pipe 1 is connected to the exhaust port of the printing press; a mixing box 5 is installed on the upper end of the second dust reduction tank 6, and a first exhaust pipe 4 is provided at one end of the first dust reduction tank 2, and the first exhaust pipe 4 provided at one end of the first dust reduction tank 2 is connected to one end of the mixing box 5; one end of the mixing box 5 is connected to the second exhaust pipe 7, and one end of the second exhaust pipe 7 is connected to the inside of the gathering tank 8; at the same time, the other side of the upper end of the gathering tank 8 is connected to the feed pipe 18;

[0029] In an embodiment of the utility model, when the closed exhaust mechanism of the film printing machine is used, the polluted air source discharged by the film printing machine enters the first dust reduction tank 2 through the air inlet pipe 1, and the first dust reduction tank 2 is used to achieve the first ink particle deposition on the polluted air source; then the polluted air source enters the mixing box 5 through the first exhaust pipe 4, and enters the second dust reduction tank 6 along the mixing box 5, and the polluted air source in the second dust reduction tank 6 achieves the second ink particle deposition; finally, the polluted air source after two ink particle depositions enters the gathering tank 8 through the second exhaust pipe 7, and at this time, a neutralizer is introduced into the gathering tank 8 through the feeding pipe 18, and the neutralizer is stirred and mixed with the introduced polluted air source to achieve the particle sedimentation of the pollutants;

[0030] See also Figure 2 In one embodiment of the utility model, the first dust reduction tank 2 has partitions 11 installed in an offset manner up and down, and a dust reduction chamber 12 is formed between adjacent partitions 11; at the same time, the lower end of the first dust reduction tank 2 is funnel-shaped, and the bottom end of the first dust reduction tank 2 is connected to the collecting pipe 3;

[0031] In the embodiment of the utility model, when polluted air enters the first dust reduction tank 2 through the air inlet pipe 1, the polluted air circulates inside the dust reduction chamber 12 formed by the partition 11; during the circulation of the polluted air, the ink particles contained in the polluted air are deposited by the blocking effect of the partition 11 and the gravity of the ink particles contained in the polluted air, and finally discharged from the position of the collecting pipe 3 set at the bottom end of the first dust reduction tank 2;

[0032] See also Figure 3 In one embodiment of the utility model, the first exhaust pipe 4 is L-shaped, one end of the first exhaust pipe 4 is connected to the inside of the first dust reduction tank 2, and the other end of the first exhaust pipe 4 extends into the inside of the second dust reduction tank 6; the part of the first exhaust pipe 4 located inside the second dust reduction tank 6 forms a lower air pipe 13, the bottom end of the lower air pipe 13 is connected to the diffusion pipe 14, and the diffusion pipe 14 is arranged horizontally at the bottom end of the second dust reduction tank 6; at the same time, one side of the upper end of the second dust reduction tank 6 is also connected to the second exhaust pipe 7;

[0033] In the embodiment of the utility model, when the polluted air enters the second dust reduction tank 6 through the first exhaust pipe 4, the polluted air enters the lower air pipe 13 along the first exhaust pipe 4, and then finally diffuses and discharges from the position of the diffusion pipe 14 connected to the bottom end of the lower air pipe 13, and then rises; in the process of the polluted air rising, the ink particles contained in the polluted air can be deposited by the gravity of the ink particles themselves; finally, after the secondary deposition, the polluted air is discharged from the position of the second exhaust pipe 7;

[0034] See also Figure 4 In one embodiment of the utility model, a neutralization chamber 15 is formed inside the gathering tank 8, the bottom end of the gathering tank 8 is connected to the discharge pipe 10, and one side of the discharge pipe 10 is connected to the discharge pipe 9; at the same time, a rotating shaft 17 is rotatably installed inside the neutralization chamber 15, the lower end of the rotating shaft 17 is rotatably installed inside the discharge pipe 10, and the upper end of the rotating shaft 17 is connected to the middle position of the rotating blade 16; the rotating blade 16 is rotatably installed at the upper end position inside the neutralization chamber 15;

[0035] In the embodiment of the utility model, when the polluted air enters the interior of the gathering tank 8 through the second exhaust pipe 7, the neutralizer is also introduced into the gathering tank 8 through the feed pipe 18; the neutralizer introduced into the gathering tank 8 is mixed with the polluted air introduced into the second exhaust pipe 7, generating air thrust, which together pushes the rotating blades 16 to rotate. During the rotation of the rotating blades 16, the rotating shaft 17 is also rotated at the same time. The rotating rotating blades 16 mix the introduced air and the introduced neutralizer, and then they enter the neutralization chamber 15 together and are transported from top to bottom in the neutralization chamber 15. Finally, the polluted air is neutralized and discharged from the position of the discharge pipe 9.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A closed exhaust mechanism for a film printing machine, include: The first dust suppression tank (2), the second dust suppression tank (6) and the gathering tank (8) are characterized by: The first dust reduction tank (2), the second dust reduction tank (6) and the gathering tank (8) are connected in sequence; wherein one side of the first dust reduction tank (2) is connected to the air intake pipe (1), and one side of the air intake pipe (1) is connected to the exhaust port of the printing press; a mixing box (5) is installed at the upper end of the second dust reduction tank (6), a first exhaust pipe (4) is provided at one end of the first dust reduction tank (2), and the first exhaust pipe (4) provided at one end of the first dust reduction tank (2) is connected to one end of the mixing box (5); One end of the mixing box (5) is connected to the second exhaust pipe (7), and one end of the second exhaust pipe (7) is connected to the inside of the gathering tank (8); at the same time, the other side of the upper end of the gathering tank (8) is connected to the feed pipe (18).

2. The closed exhaust mechanism of the film printing machine according to claim 1, Features: Partitions (11) are installed in an up-and-down staggered manner inside the first dust reduction tank (2), and a dust reduction chamber (12) is formed between adjacent partitions (11); at the same time, the lower end of the first dust reduction tank (2) is funnel-shaped, and the bottom end of the first dust reduction tank (2) is connected to a collecting pipe (3).

3. The closed exhaust mechanism of the film printing machine according to claim 1, Features: The first exhaust pipe (4) is L-shaped, one end of the first exhaust pipe (4) is connected to the interior of the first dust reduction tank (2), and the other end of the first exhaust pipe (4) extends into the interior of the second dust reduction tank (6); the portion of the first exhaust pipe (4) located inside the second dust reduction tank (6) forms a lower air pipe (13), the bottom end of the lower air pipe (13) is connected to a diffusion pipe (14), and the diffusion pipe (14) is arranged in a transverse manner at the bottom end inside the second dust reduction tank (6); at the same time, one side of the upper end of the second dust reduction tank (6) is also connected to the second exhaust pipe (7).

4. The closed exhaust mechanism of the film printing machine according to claim 1, Features: A neutralization chamber (15) is formed inside the gathering tank (8), the bottom end of the gathering tank (8) is connected to a feed pipe (10), and one side of the feed pipe (10) is connected to a discharge pipe (9); at the same time, a rotating shaft (17) is rotatably installed inside the neutralization chamber (15), the lower end of the rotating shaft (17) is rotatably installed inside the feed pipe (10), and the upper end of the rotating shaft (17) is connected to the middle position of the rotating blade (16); the rotating blade (16) is rotatably installed at the upper end position inside the neutralization chamber (15).

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