CN210934389U

CN210934389U - Continuous air drying equipment

Info

Publication number: CN210934389U
Application number: CN201921340026.5U
Authority: CN
Inventors: 赵现领; 魏富才
Original assignee: Plotech Technology Kunshan Co ltd
Current assignee: Plotech Technology Kunshan Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-07-07
Anticipated expiration: 2029-08-16

Abstract

The utility model belongs to the technical field of drying equipment, a continuous type air drying equipment is related to, including parallelly connected A tower and the B tower between pipeline import and pipeline export and by the heater of A tower and B tower sharing, the export of A tower and the export of B tower are connected simultaneously in the export of heater, the access connection pipeline export of heater, the import of A tower and the import of B tower connect the evacuation pipe. The utility model discloses can be through the regeneration of the air drying that two drying towers circulate go on and tower, can adapt to continuous characters printing work, ensure that the processing environment is anhydrous does not have oil, avoid the characters to drop, reduce the cost of scrapping.

Description

Continuous air drying equipment

Technical Field

The utility model relates to a drying equipment technical field, in particular to continuous type air drying equipment.

Background

Under the efficient social environment, the automatic character jet printing process has the advantages of rapidness, high quality and low cost, and is suitable for sample and small and medium-sized operation. For the PCB industry, small and medium-sized products will be increased continuously in the future, the market share of the PCB industry is higher than that of the existing traditional method, and screen printing machines are more likely to be replaced.

The air pressure provided by the original flow mode character spray printing is an integrated air compressor of a company, pipelines all run on the roof, air pressure humidity and oil accumulation are inevitably caused, the main function of the character spray printing machine is that the air pressure is required to be sprayed on the surface of a PCB through a spray head, and if the air pressure gas contains humidity and oil components, the character plate surface contact is poor, the character plate surface is abnormal in falling, and very high rework rate and rejection rate are brought.

It is therefore necessary to develop an air drying apparatus to avoid the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a continuous type air drying equipment can provide anhydrous oilless dry gas in succession and prevent the character problem of droing that the characters spout the seal with the word.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a continuous air drying device comprises a tower A and a tower B which are connected in parallel between a pipeline inlet and a pipeline outlet, and a heater shared by the tower A and the tower B, wherein the outlet of the heater is simultaneously connected with the outlet of the tower A and the outlet of the tower B, the inlet of the heater is connected with the outlet of the pipeline, and the inlet of the tower A and the inlet of the tower B are connected with an emptying pipe; the heater is equipped with first heating export check valve to between the export of A tower, the heater is equipped with second heating export check valve to between the export of B tower, the export of A tower is equipped with first steam outlet check valve to between the pipeline export, the export of B tower is equipped with second steam outlet check valve to between the pipeline export, the pipeline is imported to be equipped with first admission valve between the import of A tower, the pipeline is imported to be equipped with the second admission valve between the import of B tower, the import of A tower is equipped with first exhaust valve to between the evacuation pipe, the import of B tower is equipped with the second exhaust valve to between the evacuation pipe.

Specifically, the first intake valve, the second intake valve, the first exhaust valve, and the second exhaust valve are solenoid valves.

Specifically, a stop valve is arranged between the heater and the pipeline outlet.

Specifically, a silencer is arranged on the emptying pipe.

Adopt above-mentioned technical scheme, the utility model discloses technical scheme's beneficial effect is:

the utility model discloses can be through the regeneration of the air drying that two drying towers circulate go on and tower, can adapt to continuous characters printing work, ensure that the processing environment is anhydrous does not have oil, avoid the characters to drop, reduce the cost of scrapping.

Drawings

Fig. 1 is a schematic piping diagram of a continuous air drying apparatus.

The figures in the drawings represent:

1 a-column a, 1B-column B;

2-a heater;

3 a-a first heating outlet one-way valve, 3 b-a second heating outlet one-way valve;

4 a-a first hot gas outlet one-way valve, 4 b-a second hot gas outlet one-way valve;

5 a-first intake valve, 5 b-second intake valve;

6 a-a first evacuation valve, 6 b-a second evacuation valve;

7-a stop valve;

8-silencer.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in fig. 1, the present invention relates to a continuous air drying device, which comprises a tower a 1a and a tower B1B connected in parallel between a pipeline inlet (inlet position) and a pipeline outlet (outlet position) and a heater 2 shared by the tower a 1a and the tower B1B, wherein the outlet of the heater 2 is connected with the outlet of the tower a 1a and the outlet of the tower B1 a, the inlet of the heater 2 is connected with the pipeline outlet, and the inlet of the tower a 1a and the inlet of the tower B1 a are connected with an emptying pipe (emptying position); a first heating outlet one-way valve 3a is arranged between the heater 2 and the outlet of the tower A1 a, a second heating outlet one-way valve 3B is arranged between the heater 2 and the outlet of the tower B1 a, a first hot air outlet one-way valve 4a is arranged between the outlet of the tower A1 a and the outlet of the pipeline, a second hot air outlet one-way valve 4B is arranged between the outlet of the tower B1 a and the outlet of the pipeline, a first air inlet valve 5a is arranged between the inlet of the pipeline and the inlet of the tower A1 a, a second air inlet valve 5B is arranged between the inlet of the pipeline and the inlet of the tower B1 a, a first emptying valve 6a is arranged between the inlet of the tower A and the emptying pipe, and a second emptying valve 6B is arranged between the inlet of the tower B1 a and the emptying pipe. The device is a completely symmetrical structure.

When the a tower 1a performs the drying operation, the B tower 1B is in the regeneration state. At this time, the first intake valve 5a and the second exhaust valve 6b are opened, and the second intake valve 5b and the first exhaust valve 6a are closed. The air passes through the tower A1 a from the inlet of the pipeline in the forward direction to remove impurities such as dust, moisture, grease and the like, one part of clean air is sent out from the outlet of the pipeline, the other part of clean air flows back to the heater 2 for heating, and then returns to the outlet of the tower A1 a through the one-way valve 3a of the first heating outlet, so that the dry air can gradually reach the required temperature; a part of the clean air entering the heater 2 passes through the B column 1B again in reverse direction, and the impurities in the B column 1B are eluted and then exhausted from the second exhaust valve 6B.

When the column B1B performs the drying operation, the column a 1a is in a regeneration state. At this time, the first intake valve 5a and the second exhaust valve 6b are closed, and the second intake valve 5b and the first exhaust valve 6a are opened. The air passes through the tower B1B from the inlet of the pipeline in the forward direction to remove impurities such as dust, moisture, grease and the like, one part of clean air is sent out from the outlet of the pipeline, the other part of clean air flows back to the heater 2 for heating, and then returns to the outlet of the tower B1B through the one-way valve 3B of the second heating outlet, so that the dry air can gradually reach the required temperature; a part of the clean air introduced into the heater 2 passes through the a column 1a again in the reverse direction, and the impurities in the a column 1a are eluted and then evacuated from the first evacuation valve 6 a.

The two processes are alternately carried out, so that continuous air drying and tower regeneration can be realized. Generally, the operation states of the A tower 1a and the B tower 1B are interchanged every 30min, so that a relatively ideal purification effect can be achieved.

When the method is applied specifically, the character jet printing machine provides dry air with the temperature of 100-180 ℃ through continuous air drying equipment, and then jet printing is completed on the PCB product. The character jet printing machine can work under clean air through the treatment, the character falling abnormity can be effectively improved, the heavy work and scrap of the character after falling are reduced, and the production quality and efficiency are improved. The annual productivity of the current character jet printing is calculated (192 ten thousand SF/year), the scrappage area is reduced from 41000SF to 2000SF, and the amount of money can be saved by 5-8 ten thousand yuan per year.

As shown in fig. 1, the first intake valve 5a, the second intake valve 5b, the first exhaust valve 6a, and the second exhaust valve 6c are solenoid valves. In the continuous processing process, the working and regeneration states of the tower A1 a and the tower B1B need to be switched every certain time, and the electromagnetic valves can be uniformly and automatically controlled, so that the labor force can be liberated, and the loss caused by the failure of the drying effect due to the negligence of workers is avoided.

As shown in fig. 1, a shut-off valve 7 is provided between the heater 2 and the outlet of the pipeline. Stop valve 7 is in the closed condition when normal work, if the excessive pressure appears in heater 2 working process, can open stop valve 7 and let pressure in time release and cool off, just so can guarantee safety before the maintenance.

As shown in fig. 1, a silencer 8 is provided on the evacuation pipe. The silencer 8 can reduce the noise when the drying tower is exhausted in a regeneration mode, and the working environment is kept quiet, so that communication among workers and discovery of abnormal sounds are avoided.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. A continuous air drying apparatus, characterized by: the system comprises a tower A and a tower B which are connected in parallel between a pipeline inlet and a pipeline outlet, and a heater shared by the tower A and the tower B, wherein the outlet of the heater is simultaneously connected with the outlet of the tower A and the outlet of the tower B, the inlet of the heater is connected with the outlet of the pipeline, and the inlet of the tower A and the inlet of the tower B are connected with an emptying pipe; the heater is equipped with first heating export check valve to between the export of A tower, the heater is equipped with second heating export check valve to between the export of B tower, the export of A tower is equipped with first steam outlet check valve to between the pipeline export, the export of B tower is equipped with second steam outlet check valve to between the pipeline export, the pipeline is imported to be equipped with first admission valve between the import of A tower, the pipeline is imported to be equipped with the second admission valve between the import of B tower, the import of A tower is equipped with first exhaust valve to between the evacuation pipe, the import of B tower is equipped with the second exhaust valve to between the evacuation pipe.

2. A continuous air drying apparatus as claimed in claim 1, wherein: the first intake valve, the second intake valve, the first exhaust valve, and the second exhaust valve are solenoid valves.

3. A continuous air drying apparatus as claimed in claim 1, wherein: and a stop valve is arranged between the heater and the pipeline outlet.

4. A continuous air drying apparatus as claimed in claim 1, wherein: and a silencer is arranged on the emptying pipe.