CN210079095U - Automatic Cleaning System for Tissue Air Hood Filters - Google Patents

Abstract

The utility model relates to a household paper technical field, concretely relates to automatic cleaning system of household paper air hood filter screen, its structure includes the hot-blast main and installs in the filter screen of hot-blast main, can drive the filter screen and shift out and the inserted actuating mechanism, be used for cleaning the first trachea and the dust removal tuber pipe of filter screen from one side of hot-blast main, first trachea and dust removal tuber pipe are close to and set up in the both sides of filter screen side by side, set up a plurality of nozzle on the first trachea, the gas outlet of nozzle is towards the filter screen, be provided with first governing valve on the pipeline of first trachea; the air inlet of the dust removal air pipe faces the bottom of the filter screen, and the air outlet of the dust removal air pipe is connected with the dust removal system. The utility model discloses an automatic cleaning system can need not to shut down and carry out periodic ground self-cleaning to the filter screen at the heated air circulation in-process to improve heat utilization efficiency, bring very big improvement to paper machine operating efficiency.

Description

Automatic Cleaning System for Tissue Air Hood Filters

technical field

The utility model relates to the technical field of household paper, in particular to an automatic cleaning system for a filter screen of a household paper air hood.

Background technique

During the hot air recycling process of the air hood in the papermaking workshop, the hot air in the air hood enters the hot air duct from the air outlet, and the hot air entrains a large amount of paper wool, paper scraps and other sundries, which can easily cause the accumulation of paper wool in the hot air duct. , and then there is a fire hazard; at the same time, after the treated hot air is circulated into the air hood through the hot air duct, it will also cause hidden dangers such as blockage of the steam nozzles in the air hood, resulting in low thermal cycle efficiency.

In order to solve the above problems, in the prior art, a filter screen is installed in the hot air pipe of the hot air circulation system to remove impurities entrained in the hot air. However, the temperature in the hot air duct is high, and the filter screen is difficult to clean. At present, it is usually shut down for a period of time, and the filter screen is removed and cleaned manually, which not only takes a long time, but also has a large workload of manual operation, which has a significant impact on the production of the paper machine. If an automatic cleaning device can be installed, it will automatically clean periodically during the production process without stopping, and the utilization efficiency of heat energy will be improved, and the operation efficiency of the paper machine will be greatly improved.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to aim at the deficiencies in the prior art, and provide an automatic cleaning system for the filter screen of the air hood of household paper, which can periodically clean the filter screen without stopping the hot air circulation process. Automatic cleaning, thereby improving the efficiency of thermal energy utilization, and greatly improving the operating efficiency of the paper machine.

Provides an automatic cleaning system for tissue air hood filters, including a hot air duct and a filter installed on the hot air duct, and a driving mechanism capable of driving the filter to move out and insert from one side of the hot air duct, In order to clean the first air pipe and the dust removal air pipe of the filter screen, the first air pipe and the dust removal air pipe are arranged close to and side by side on both sides of the filter screen, a number of nozzles are arranged on the first air pipe, and the The air outlet of the nozzle faces the filter screen, and the pipeline of the first air pipe is provided with a first regulating valve; the air inlet of the dust removal air duct faces the bottom of the filter screen, and the air outlet of the dust removal air duct is connected to the dust removal system .

In the above technical solution, two sets of pulley assemblies for removing and inserting the filter screen from the hot air duct are also included, and the pulley assemblies are installed on the top and bottom ends of the filter screen.

In the above technical solution, the pulley assembly includes a matching track and a pulley, and the pulley is fixedly connected to the bottom end and the top end of the filter screen through a support leg.

In the above technical solution, the driving mechanism is an air cylinder, the piston rod of the air cylinder is connected with the support legs of the filter screen, and the cylinder drives the pulley of the filter screen to move back and forth on the track.

In the above technical solution, the air inlet of the cylinder block is connected to the second air pipe, and the pipeline of the second air pipe is provided with a second regulating valve.

In the above technical solution, limit switches are respectively provided at both ends of the track.

In the above technical solution, a plurality of the filter screens are provided, and the plurality of filter screens are arranged on the circulation pipeline of the hot air pipe at intervals.

The beneficial effects of the present utility model:

The automatic cleaning system for the filter screen of the household paper air hood of the utility model includes a hot air pipe and a filter screen installed on the hot air pipe, a driving mechanism capable of driving the filter screen to move out and insert from one side of the hot air pipe, and is used for Clean the first air pipe of the filter screen and the dust removal air pipe. The first air pipe and the dust removal air pipe are arranged close to and side by side on both sides of the filter screen. Several nozzles are arranged on the first air pipe, and the air outlet of the nozzle faces the filter screen. A first regulating valve is arranged on the pipeline of the dust removal air duct; the air inlet of the dust removal air duct faces the bottom of the filter screen, and the air outlet of the dust removal air duct is connected to the dust removal system. When working, the hot air with a lot of paper wool, paper scraps and other debris in the air hood continuously enters the hot air duct and removes the debris through the filter screen. The control system pre-sets the cleaning time period. When the filter screen is used for a period of time, When cleaning is required, the control system opens the first regulating valve to ventilate the air pipe, and the nozzle starts to blow air. At the same time, the driving mechanism is activated, and the driving mechanism gradually moves the filter screen out of the hot air pipe. The net blows air to remove the paper wool and other debris on the filter net to achieve the purpose of cleaning; after the cleaning is completed, the first regulating valve closes the air source, the nozzle stops blowing, and then the driving mechanism returns the filter net to the original position inserted into the hot air duct ; In addition, the paper wool, paper scraps and other debris removed from the filter screen are sucked into the dust removal duct, and then passed through the dust removal system. pollution. Therefore, the automatic cleaning system of the present utility model can automatically clean the filter screen periodically without shutting down during the hot air circulation process, thereby improving the heat energy utilization efficiency, greatly improving the operation efficiency of the paper machine, and the whole process. The automatic control is realized, and the cleaning efficiency is high.

Description of drawings

The present invention will be further described by using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, under the premise of no creative work, the following drawings can also be used to obtain Additional drawings.

FIG. 1 is a schematic structural diagram of an automatic cleaning system for a household paper air hood filter according to the present invention.

FIG. 2 is a schematic structural diagram of the filter screen of the automatic cleaning system of the household paper air hood filter screen of the present invention.

Reference number:

Hot air duct 1, filter screen 2, support legs 21;

The first air pipe 3, the nozzle 31, the first regulating valve 32;

Dust removal duct 4, pulley assembly 5, track 51, pulley 52;

Cylinder 6, second air pipe 7, second regulating valve 71;

Dust removal system 8, control system 9.

Detailed ways

The present invention will be further described with reference to the following examples.

As shown in FIG. 1 , the automatic cleaning system for the filter screen of the tissue air hood in this embodiment includes a hot air duct 1 and a filter screen 2 installed on the hot air duct 1 . The filter screen 2 can be driven from the hot air duct 1 The drive mechanism for removing and inserting one side, the first air pipe 3 and the dust removal air pipe 4 for cleaning the filter screen 2, the first air pipe 3 and the dust removal air pipe 4 are arranged close to and side by side on both sides of the filter screen 2, and the first air pipe A number of nozzles 31 are arranged on the 3, the air outlet of the nozzle 31 is facing the filter screen 2, and a first regulating valve 32 is arranged on the pipeline of the first air pipe 3; The air outlet of 4 is connected to the dust removal system 8. During operation, the hot air with a large amount of paper wool, paper scraps and other debris in the air hood continuously enters the hot air duct 1 and removes the debris through the filter screen 2. The control system 9 pre-sets the cleaning time period. When the filter screen 2 When cleaning is required after using for a period of time, the control system 9 opens the first regulating valve 32 to ventilate the trachea, and the nozzle 31 starts to blow air. During the removal process, the nozzle 31 continuously blows air toward the filter screen 2 to remove the paper wool and other debris on the filter screen 2 to achieve the purpose of cleaning; after the removal is completed, the first regulating valve 32 closes the air source, and the nozzle 31 stops blowing. , and then the drive mechanism returns the filter screen 2 to the original position inserted into the hot air duct 1; in addition, the paper wool, paper scraps and other debris removed from the filter screen 2 are sucked into the dust removal duct 4, and subsequently pass through the dust removal system 8 , the dust removal system 8 disposes of paper wool, paper scraps, etc., so as to prevent paper wool and paper scraps from polluting the air. Therefore, the automatic cleaning system can automatically clean the filter screen 2 periodically without shutting down during the hot air circulation process, thereby improving the heat energy utilization efficiency, greatly improving the operation efficiency of the paper machine, and the whole process realizes Automatic control, high cleaning efficiency.

In this embodiment, as shown in FIG. 1 and FIG. 2 , two sets of pulley assemblies 5 for removing and inserting the filter screen 2 from the hot air duct 1 are also included. The pulley assemblies 5 are installed on the top and bottom ends of the filter screen 2 . The pulley assembly 5 includes a matching track 51 and a pulley 52 , and the pulley 52 is fixedly connected with the bottom end and the top end of the filter screen 2 through the supporting legs 21 .

In this embodiment, as a preferred embodiment, the driving mechanism is an air cylinder 6, the piston rod of the air cylinder 6 is connected to the support leg 21 of the filter screen 2, and the cylinder 6 drives the pulley 52 of the filter screen 2 to move back and forth on the track 51.

Specifically, the air inlet of the cylinder block of the cylinder 6 is connected to the second air pipe 7 , and the pipeline of the second air pipe 7 is provided with a second regulating valve 71 . During operation, the second regulating valve 71 is opened, and after the air cylinder 6 is inflated, the filter screen 2 is driven to slowly move out from the inside of the hot air duct 1, and the pulley 52 slides out along the track 51. The net 2 is cleaned as it is removed.

Specifically, the two ends of the track 51 are respectively provided with limit switches. When the filter screen 2 moves outward to reach the maximum position, the control system 9 closes the second regulating valve 71, the exhaust gas of the cylinder 6 contracts, and the filter screen 2 returns to the original position. After the position, the second regulating valve 71 is closed, so that it is convenient to control the position where the filter screen 2 is moved out and inserted into the hot air duct 1 for precise positioning.

In this embodiment, a plurality of filter nets 2 are provided, and the plurality of filter nets 2 are arranged on the circulation pipeline of the hot air pipe 1 at intervals.

Compared with the prior art, the automatic cleaning system of the present invention can automatically clean the filter screen 2 periodically without shutting down during the hot air circulation process, thereby improving the heat energy utilization efficiency and bringing great benefits to the operation efficiency of the paper machine. Improvement, and the whole process is automated and controlled, and the cleaning efficiency is high.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Persons should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims (7)

1. Automatic cleaning system of life paper air hood filter screen, include hot-blast main and install in the filter screen of hot-blast main, its characterized in that: the dust removal device comprises a hot air pipe, a first air pipe, a dust removal air pipe, a driving mechanism, a first air pipe and a second air pipe, wherein the driving mechanism can drive the filter screen to move out of and insert into one side of the hot air pipe; the air inlet of the dust removal air pipe faces the bottom of the filter screen, and the air outlet of the dust removal air pipe is connected with the dust removal system.

2. The automatic cleaning system for the filter screen of the air hood of the household paper as claimed in claim 1, characterized in that: the hot air pipe is characterized by also comprising two groups of pulley assemblies for moving the filter screen out of and inserting the filter screen into the hot air pipe, wherein the pulley assemblies are arranged at the top end and the bottom end of the filter screen.

3. The automatic cleaning system for the filter screen of the air hood of the household paper as claimed in claim 2, characterized in that: the pulley assembly comprises a track and a pulley which are matched, and the pulley is fixedly connected with the bottom end and the top end of the filter screen through support legs.

4. The automatic cleaning system for the filter screen of the air hood of the household paper as claimed in claim 3, characterized in that: the driving mechanism is an air cylinder, a piston rod of the air cylinder is connected with the supporting legs of the filter screen, and the air cylinder drives the pulleys of the filter screen to move back and forth on the rail.

5. The automatic cleaning system for the filter screen of the air hood of the household paper as claimed in claim 4, characterized in that: and an air inlet of the cylinder body of the air cylinder is connected with a second air pipe, and a second regulating valve is arranged on a pipeline of the second air pipe.

6. The automatic cleaning system for the filter screen of the air hood of the household paper as claimed in claim 4, characterized in that: and two ends of the track are respectively provided with a limit switch.

7. The automatic cleaning system for the filter screen of the air hood of the household paper as claimed in claim 1, characterized in that: the filter screen is provided with a plurality of, and a plurality of filter screens are arranged on the circulation pipeline of the hot blast pipe at intervals.

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