CN209679708U - A kind of wooden dust dedusting Reformation for Explosion Proof system - Google Patents

Abstract

The utility model discloses a kind of wooden dust dedusting Reformation for Explosion Proof systems, enter pipeline including dust air, one end connection that the dust air enters pipeline captures cover, its other end is connect with explosion diverter front end, the explosion diverter is equipped with the first venting of dust explosion piece, the explosion diverter rear end is connected to bag filter air inlet, the bag filter gas outlet is connect with the air inlet of dust air outlet duct, centrifugal blower is equipped at the gas outlet of the dust air outlet duct, the utility model is using actively and passively explosion-protection equipment keeps equipment safety stronger, working condition in multiple sensor real-time monitoring bag filters is installed inside bag filter, operating temperature is set to be in safe temperature always using spraying ventilating device.

Description

An Explosion-proof Transformation System for Wood Dust Removal

technical field

The utility model relates to the field of wood dust treatment of fixtures, in particular to a wood dust dedusting and explosion-proof transformation system.

Background technique

Wood dust explosion is an accident that is very easy to occur in the wood processing industry and has a very serious destructive ability. Because the wood dust is light in weight and has a large specific area, when the wood dust floats in the air and reaches a certain concentration, it has an extremely strong reaction with the oxygen in the air. Once burning occurs on a large contact surface, it will spread very quickly. The gas and heat generated due to strong combustion are not easy to disperse, and the local pressure will increase sharply to cause cascade explosion. In the prior art, the common treatment methods for dust are all Using a negative pressure source to absorb the dust cloud generated in the processing environment, and then filter the collected waste gas, this method cannot ensure that the flammable and explosive dust in the production environment is completely and effectively disposed of, and the dust removal There is also a risk of explosion from the dust cloud inside the appliance.

Utility model content

Aiming at the above-mentioned problems in the prior art, the purpose of this utility model is to propose an explosion-proof reconstruction system for wood dust removal.

The technical problem that the utility model solves can adopt following technical scheme to realize:

An explosion-proof modification system for wood dust removal,

Including the dust air inlet pipe, one end of the dust air inlet pipe is connected to the capture cover, and the other end is connected to the front end of the explosion diverter. The explosion diverter is provided with a first explosion relief plate, and the rear end of the explosion diverter is connected to To the air inlet of the bag filter, the air outlet of the bag filter is connected to the air inlet of the dust air output pipeline, the air outlet of the dust air output pipeline is provided with a centrifugal fan, and the air outlet of the dust air output pipeline It is also connected with the exhaust chimney, the centrifugal fan communicates with the bottom of the exhaust chimney, the top of the exhaust chimney is provided with an umbrella-shaped rain cap, and the side wall of the exhaust chimney is provided with a sample gas sampling port,

A spark detector and a first spray head are provided on the inner wall of the dust air inlet pipe,

The bag filter is fixed on the base surface through a fixing frame. The bag filter includes a second spray head arranged on the top of the inner cavity, and an ash discharge bin arranged at the bottom of the bag filter. There is a star-shaped ash unloading valve, which is equipped with a dust accumulation height detection device, and the inner cavity of the bag filter is an upper cavity, a middle cavity and a lower cavity, and the upper cavity is equipped with A flower board, a cloth bag is installed on the flower board, a pressure difference sensor is provided on the inner wall of the upper chamber and the middle chamber, the lower chamber is also provided with a temperature sensor, and a number of first Two burst discs; the external electrical connection of the whole system is connected to the PCL control box.

The beneficial effects of the utility model:

1. Through active and passive explosion-proof measures, explosion-proof treatment can be carried out more effectively.

2. By controlling the temperature, the temperature of the dust environment can be more effectively controlled, and the risk of explosion caused by the spontaneous combustion of dust can be effectively prevented.

3. Through the detection of the state of the filter material, ensure that the filter material is in a good state, and ensure that the dust concentration in the workshop is in a healthy state

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic diagram of the structure of the bag filter.

Among them: 1. Dust air enters the pipeline; 2. Capture cover; 3. Explosion diverter; 4. The first explosion vent; 5. Air inlet of bag filter; 6. Air outlet of bag filter; 7. Bag filter 8. Dust air output pipe; 9. Centrifugal fan; 10. Exhaust chimney; 11. Umbrella rain cap; 12. Sample gas sampling port; 13. Spark detector; 14. First spray head 15. Fixing frame; 16. Second sprinkler head; 17. Ash unloading bin; 18. Star ash unloading valve; 19. Ash accumulation height detection device; 20. Flower plate; 21. Pressure difference sensor; 22. Temperature sensor; 23. Second Explosion vent.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the utility model are used to explain the utility model, but not as a limitation to the utility model.

Referring to Fig. 1 and Fig. 2, the utility model specifically discloses an explosion-proof modification system for wood dust removal, which includes a dust air inlet pipe 1, one end of the dust air inlet pipe 1 is connected to a capture cover 2, and the other end is connected to the explosion-proof pipe 1. The front end of the diverter 3 is connected, the explosion diverter 3 is provided with a first explosion vent plate 4, the rear end of the explosion diverter 3 is connected to the air inlet 5 of the bag filter, and the air outlet 6 of the bag filter is connected to the dust The air inlet of the air output pipeline 8 is connected, and the air outlet of the dust air output pipeline 8 is provided with a centrifugal fan 9, and the air outlet of the dust air output pipeline 8 is also connected with the exhaust chimney 10, and the centrifugal fan 9 Connected with the bottom of the exhaust chimney 10, the top of the exhaust chimney 10 is provided with an umbrella-shaped rain cap 11, the side wall of the exhaust chimney 10 is provided with a sample gas sampling port 12, and the inner wall of the dust air inlet pipeline 1 is provided with Spark detector 13 and first shower head 14, described bag filter 7 is fixed on the base surface by fixing frame 15, and described bag filter 7 comprises the second shower head 16 that is arranged on the inner cavity top, and is set The ash unloading bin 17 at the bottom of the bag filter 7 is provided with a star-shaped ash unloading valve 18 at the lower end of the ash unloading bin 17, and the star-shaped ash unloading valve 18 is provided with an ash accumulation height detection device 19. 7. The inner cavity is an upper cavity, a middle cavity and a lower cavity. The upper cavity is provided with a flower plate 20, and a cloth bag is installed on the flower plate 20, and pressure is provided on the upper cavity and the middle cavity inner wall. Differential sensor 21, the lower chamber is also provided with a temperature sensor 22, and a plurality of second explosion-venting plates 23 are provided on the outer wall of the lower chamber; the entire system is electrically connected to the PCL control box.

The working process of the utility model is: during the production and processing of wooden furniture, a large amount of wood dust generated is sucked into the pipeline 1 by the wind force provided by the centrifugal fan, and when the spark detector 13 detects that there is a spark in the pipeline, the PCL The control box controls the opening of the first shower head 14, and the spark is extinguished. If there is no spark, the wood dust continues to enter the explosion diverter 3. If an explosion accident occurs at this time, the dust can be dissipated by the first explosion venting sheet 4 of the explosion converter 3. The direction of the shock wave generated by the explosion is adjusted to a direction that is harmless to the workers to minimize the damage caused by the dust explosion. Finally, the wood dust enters the bag filter 7 through the explosion converter 3. When the temperature sensor 22 detects the internal temperature of the bag filter 7 When the temperature is too high, the PCL control box controls the opening of the second spray head 16 to cool down the interior of the dust collector to prevent the dust cloud inside the dust collector from spontaneously igniting due to excessive temperature. The differential pressure sensor 21 can monitor the inside of the bag filter 7 in real time The pressure difference ensures real-time feedback of the working environment inside the bag filter 7. The ash accumulation height detection device 19 feedbacks whether the star ash unloading valve 18 is working normally by detecting the ash accumulation height at the star ash unloading valve 18 to prevent dust from entering the dust collector. Internal accumulations cause explosion accidents; when an explosion occurs inside the dust collector, the second explosion vent 23 device on the dust collector shell is opened to release the residual pressure of the explosion, and at the same time, the direction of the explosion shock wave can be adjusted to a direction that is not harmful to the operator , to ensure the safety of workers.

The utility model ensures that the working temperature of the wood dust is always at a safe temperature by arranging the first spray head 14 and the second spray head 16, and eliminates the hidden danger of sparks in the working environment, and the utility model passes the inside of the bag filter 7 A differential pressure sensor 21, a temperature sensor 22, a dust accumulation height detection device 19, etc. are set to monitor the working state inside the bag filter 7 in real time to ensure the safety of its work, and the added first explosion vent 4 and the second The two explosion-venting sheets 23 can cope with emergencies such as dust explosions in the working process, and the explosion direction can be changed by the explosion-venting sheets so that the harm of dust explosions can be minimized.

The technical solutions disclosed in the embodiments of the present invention have been introduced in detail above, and the principles and implementation methods of the embodiments of the present invention have been explained by using specific examples in this paper. The descriptions of the above embodiments are only applicable to help understand the present invention. The principle of the embodiment; at the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and the scope of application. Utility model restrictions.

Claims (1)

1. a kind of wooden dust dedusting Reformation for Explosion Proof system, including dust air enter pipeline, the dust air enters pipeline One end connection capture cover, the other end is connect with explosion diverter front end, the explosion diverter equipped with the first venting of dust explosion piece, The explosion diverter rear end is connected to bag filter air inlet, bag filter gas outlet and dust air outlet duct Air inlet connects, and centrifugal blower is equipped at the gas outlet of the dust air outlet duct, the dust air outlet duct Gas outlet is also connect with exhaust chimney, and the centrifugal blower is connected to exhaust chimney bottom, and umbrella is equipped at the top of the exhaust chimney Shape rain cap, the exhaust chimney side wall are equipped with sample gas sample tap,

The dust air enters inner wall of the pipe and is equipped with spark detector and the first spray head,

The bag filter is fixed on basal plane by fixed frame, and the bag filter includes that inner cavity top is arranged in Two spray heads, and the ash unloading bin of bag filter bottom is set, it is equipped with star-shaped dust-discharging valve in ash unloading bin lower end, it is described star-like Unloading valve is equipped with dust stratification height detecting device, and the bag filter inner cavity is upper layer cavity, central cavity and lower layer's chamber Body, the upper layer cavity are equipped with card, are equipped with cloth bag on the card, and pressure is equipped on upper layer cavity and central cavity inner wall Gap sensor, lower layer's cavity are additionally provided with temperature sensor, and lower layer's chamber outer wall is equipped with several second venting of dust explosion pieces；It is whole The exposed electrical of a system connects PCL control cabinet.