CN205598838U - Integrated pulse bag filter for fire prevention and dust removal - Google Patents

Abstract

The utility model relates to the dust purification field of various industrial fields such as hardware, building materials, ceramics, electronics, chemical industry, casting, aluminum products, metallurgy, machining, nonferrous metals and the like, in particular to a fireproof and dedusting integrated pulse bag type dust collector, which comprises a box body, the box body is divided into a gas area, a dust collecting and cleaning area and a dust discharging area from top to bottom, the front end of the dust collecting and cleaning area is provided with a dust inlet, the air region is provided with an air port which is communicated with an air pipe, the tail end of the air pipe is respectively connected with an emptying pipe and a dust absorption fan, the dust collecting and cleaning area is internally provided with a mounting frame, the mounting frame is internally provided with a plurality of filter bags, the top ends of the filter bags are provided with a blowing device, the blowing device is connected with a pulse device, a pressure sensor is arranged in the box body, and the pressure sensor is electrically connected with the dust collection fan.

Description

Integrated pulse bag filter for fire prevention and dust removal

technical field

The utility model relates to the field of dust purification in various industrial fields such as hardware, building materials, ceramics, electronics, chemical industry, casting, aluminum products, metallurgy, machining, non-ferrous metals, etc., especially a fire-proof and dust-removing integrated pulse bag dust collector.

Background technique

With the development of modern industry, the impact of dust on environmental pollution and human health is becoming more and more serious. It has become the consensus of all to control dust pollution and purify the living environment of human beings. In order to keep the production environment clean, the place polluted by dust must be cleaned in time. At present, the dust collector has a large volume, complex structure, high installation cost, unsatisfactory dust removal effect, high energy consumption and due to the pulse bag filter in the dust removal process. The gas is continuously processed in the process, so that the temperature in the device continues to rise, causing the device to catch fire or even explode, endangering production and workers' lives.

Utility model content

In order to solve the above problems, the utility model provides an integrated pulse bag filter for fire prevention and dust removal.

In order to achieve the above purpose, the utility model adopts the following technical solution: a fire-proof and dust-removing integrated pulse bag filter, including a box body, and the box body is divided into a gas area, a dust-collecting and ash-cleaning area and an area from top to bottom. In the ash discharge area, the front end of the dust collection and cleaning area is provided with a dust inlet, the gas area is provided with an air outlet, the air outlet is connected to a ventilation pipe, and the end of the air pipe is connected to an emptying pipe and a suction pipe respectively. Dust fan, the dust collection and cleaning area is provided with an installation frame, the installation frame is composed of a keel frame, a number of filter bags are arranged in the keel frame, and a blowing device is installed on the top of the filter bag , the blowing device is connected with a pulse device, the box is provided with a pressure sensor, the pressure sensor is electrically connected with the dust suction fan, and the dust collection and cleaning area and the ash discharge area are provided A fire pipe is arranged, and several nozzles are arranged on the fire pipe.

Preferably, the blowing device includes an air storage cylinder, a blowing pipe communicated with the air storage cylinder, a nozzle body fixed on the blowing pipe, a nozzle and a drainage channel are arranged on the nozzle body, and the diameter of the drainage channel is large at the top and small at the bottom. The nozzle is installed on the nozzle body and is enclosed in the drainage channel. The outlet end of the nozzle corresponds to the small end of the drainage channel. The drainage channel guides the airflow through the nozzle. The airflow enters from the large end of the drainage channel and flows out from the small end. .

Preferably, the drainage channel is in the shape of a trumpet with a large top and a small bottom, and its large end is fixed on the nozzle body, and the large end of the drainage channel is integrated with the nozzle body.

Preferably, a muffler is provided at the connection between the exhaust pipe and the dust suction fan.

Preferably, the muffler includes an outer shell, an inner shell, a sound-absorbing cotton arranged between the outer shell and the inner shell, a sound-absorbing plate, and a porous sound-absorbing pipe. There are sound-absorbing holes on the side wall of the inner shell where the cotton is in contact. One end of the inner shell is connected to the vacuum fan, and the other end of the inner pipe is connected to the exhaust pipe. The inner shell includes two or more sound-absorbing panels stacked in sequence, and the sound-absorbing panels perpendicular to the wind direction.

Preferably, an ash hopper is provided at the bottom of the ash discharge area.

Preferably, a ladder is provided on the side of the box, and a protective grill is provided on the top surface and any side of the box.

The working principle of the utility model:

The pulse device sends out a signal, and the dusty exhaust gas is collected by the dust inlet and enters the dust collection and cleaning area under the action of the dust suction fan. Part of the dust collides with the inner wall of the box or other objects due to inertia and falls into the ash hopper. When it rises to the filter bag, the dust is blocked outside the filter bag, and the clean gas enters the bag and is discharged through the bag mouth, gas area, tuyere, and exhaust pipe.

For dust removal, the pulse device sends out a signal to make the injection device blow at regular intervals. The air storage cylinder provides the air source to the nozzle, and the nozzle sprays into the filter bag, and the filter bag expands rapidly. Under the action of the generated acceleration and reverse air flow, the dust attached to the bag falls off to the ash hopper, and the dust is discharged from the ash discharge port. discharge. Because there is a lot of dust and exhaust gas in the box, the dust exhaust gas is continuously sucked and sprayed by the dust suction fan and the blowing device, and the temperature in the box will continue to rise. When the temperature in the box reaches 85-90 degrees, the nozzle sprays the inside of the device. Spraying can reduce the temperature inside the device, and at the same time make the dust aggravated and fall by itself. The dust accumulation on the dust bag is removed by pulse air flow back blowing, the dust removal effect is good, and the pulse cycle and pulse width can also be adjusted by the pulse signal controller. To change the duration and interval of the blowing operation, so that the dust bag can maintain a good filtering state, with high dust collection efficiency, low energy consumption, strong purification ability, large gas processing capacity, safe and reliable operation, and because it uses compressed air To blow back the dust, the dust bag has no mechanical movement, greatly prolonging the service life and long service life, and the maintenance workload is small. In addition, the overall structure is compact, high strength, strong rigidity, good sealing, easy operation and maintenance, which is conducive to wide application, especially suitable for It is used in dust purification in various industrial fields such as hardware, building materials, ceramics, electronics, chemicals, casting, aluminum products, metallurgy, machining, non-ferrous metals, etc. Improve the quality of products in various industrial fields such as gold, machining, and non-ferrous metals, and reduce dust pollution in workshops.

The beneficial effect of the utility model is that: the utility model has an ingenious and reasonable structural design, and has the following advantages:

(1) High dust removal efficiency, dust removal efficiency ≥ 99%;

(2) The processed dust can be recycled;

(3) The external dimensions of dust removal can be set according to the designed air volume;

(4) High degree of automation;

(5) When the temperature inside the box reaches 85-90 degrees, the nozzle sprays the inside of the device, which can reduce the temperature inside the device and make the dust aggravate and fall off by itself.

Description of drawings

Fig. 1 is a structural diagram of the utility model.

FIG. 2 is another perspective view of FIG. 1 .

Fig. 3 is a structural diagram of the blowing device of the present invention.

Fig. 4 is a structural diagram of the silencer of the present invention.

Labeling instructions: 11. Gas area; 111. Air outlet; 12. Dust collection and cleaning area; 121. Installation frame; 122. Filter bag; 13. Ash discharge area; 131. Dust inlet; 14. Ladder; 15. Guard grid ; 2. Ventilation pipe; 3. Evacuation pipe; 4. Dust suction fan; 5. Injection device; 51. Air storage cylinder; 52. Injection pipe; 53. Nozzle body; 54. Nozzle; 55. Drainage channel; 6. Pulse device; 7. Pressure sensor; 8. Muffler; 81. Shell; 82. Silencer cotton; 83. Inner shell; 84. Sound-absorbing plate; 85. Porous sound-absorbing tube;

detailed description

Please refer to Figures 1-4, the utility model relates to a fire-proof and dust-removing integrated pulse bag filter, including a box body, the side of the box body is provided with a ladder 14, the top surface of the box body and any A grille 15 is provided on the side. The box body is divided into a gas area 11, a dust collection and cleaning area 12 and an ash discharge area 13 from top to bottom. The front end of the dust collection and cleaning area 12 is provided with a dust inlet 131, and the gas area 11 is provided with There is a tuyere 111, the tuyere 111 is connected to the air duct 2, the end of the air duct is respectively connected to the emptying pipe 3 and the dust suction fan 4, and the dust collecting and cleaning area 12 is provided with an installation frame 121, so The installation frame 121 described above is composed of a keel frame, and a plurality of filter bags 122 are arranged in the keel frame, and the top of the filter bag 122 is provided with a blowing device 5, and the blowing device 5 is connected with a pulse device 6, Described blowing device 5 comprises air storage cylinder 51, the injection pipe 52 that is communicated with air storage cylinder 51, the nozzle 54 body 53 that is fixed on the injection pipe 52, nozzle 54 body 53 is provided with nozzle 54 and drainage passage 55, drainage passage The diameter of 55 is large and small at the bottom. The nozzle 54 is installed on the nozzle 54 body 53 and is surrounded in the drainage channel 55. The outlet end of the nozzle 54 corresponds to the small end of the drainage channel 55. The drainage channel 55 It is in the shape of a trumpet with a large top and a small bottom, and its big end is fixed on the nozzle 54 body 53. The big end of the drainage channel 55 is integrated with the nozzle 54 body 53, and the drainage channel 55 guides the air flow through the nozzle 54. It enters from the large end of the drainage channel 55 and flows out from the small end. The airflow ejected from the nozzle 54 enters the large end of the drainage channel 55, and then sprays out from the small end to form the effect of secondary drainage, which greatly improves the blowing air volume of the blowing device 5 and greatly improves the dust removal effect. A pressure sensor 7 is arranged in the box, and the pressure sensor 7 is electrically connected with the dust suction fan 4 . The pressure sensor 7 can detect the gas pressure in the box. When the gas pressure in the box is too large, the power of the dust suction fan 4 is reduced. When the gas pressure in the box is too small, the power of the dust suction fan 4 is increased. Through the pressure sensor 7 The pressure detection in the box can effectively reduce the energy consumption of the dust suction fan 4 and save electric energy without reducing the dust removal effect. An ash hopper is provided at the bottom of the ash discharge area 13 .

General dedusting equipment is comparatively large-scale, and it is unavoidable that huge noise is produced when its dust-absorbing fan 4 works, and firstly causes environmental pollution, secondly affects worker's health, easily causes worker's tinnitus, preferably, described emptying pipe 3 and dust-absorbing fan 4. A muffler 8 is also provided at the joint, and the muffler 8 includes an outer shell 81, an inner shell 83, a sound-absorbing cotton 82 arranged between the outer shell 81 and the inner shell 83, a sound-absorbing plate 84, a porous sound-absorbing pipe 85, and the outer shell 81 Form a cavity with the inner shell 83, fill the cavity with sound-absorbing cotton 82, and the side wall of the inner shell 83 in contact with the sound-absorbing cotton 82 is provided with a sound-absorbing hole, one end of the inner shell 83 is connected to the dust suction fan 4, and the other end of the inner pipe is connected to the exhaust Empty pipe 3, the inner shell 83 includes two or more sound-absorbing plates 84 stacked in sequence, and the sound-absorbing plates 84 are perpendicular to the air inlet direction, specifically in this embodiment, according to the fan power and the size of the ambient noise level, The number of boards 84 is set. The sound-absorbing board 84 is composed of two net plates and the sound-absorbing cotton 82 filled between the two net plates, which reduces the weight of the sound-absorbing board 84 and has good sound-absorbing effect; the porous sound-absorbing tube 85 passes through the above-mentioned Sound-absorbing plate 84, the porous sound-absorbing tubes 85 are also provided with multiple, and evenly arranged, in the present embodiment, the porous sound-absorbing tubes 85 are provided with 9, the number and inner diameter of the porous sound-absorbing tubes 85 are set according to the sound-absorbing needs; The sound-absorbing plate 84 gradually eliminates the aerodynamic noise, and at the same time combines the porous sound-absorbing tube 85 to realize the air flow through the silencer 8. The structure is simple, the sound-absorbing effect is good, the manufacturing cost is low, and it can effectively prevent the sound-absorbing cotton 82 from absorbing dust, improving the sound quality of the silencer 8. service life.

Due to the large amount of dust and exhaust gas in the box, the dust exhaust gas is continuously sucked and sprayed by the dust suction fan 4 and the blowing device 5, and the temperature in the box will continue to rise. When the temperature in the box is too high, it is easy to explode, endangering production and workers' lives. , preferably, a fire pipe 9 is provided between the dust collection and ash removal area 12 and the ash discharge area 13, and a plurality of nozzles 91 are provided on the fire pipe 9. When the temperature in the box reaches 80 degrees, it will automatically burst and spray water. Spraying the dust and waste gas can firstly quickly and effectively lower the temperature inside the box, and at the same time, the dust will be heated and aggravated by spraying, and will fall into the ash discharge area 13 due to its own gravity.

The working principle of the utility model:

The pulse device sends out a signal, and the dusty exhaust gas is collected by the dust inlet and enters the dust collection and cleaning area under the action of the dust suction fan. Part of the dust collides with the inner wall of the box or other objects due to inertia and falls into the ash hopper. When it rises to the filter bag, the dust is blocked outside the filter bag, and the clean gas enters the bag and is discharged through the bag mouth, gas area, tuyere, and exhaust pipe.

For dust removal, the pulse device sends out a signal to make the injection device blow at regular intervals. The air storage cylinder provides the air source to the nozzle, and the nozzle sprays into the filter bag, and the filter bag expands rapidly. Under the action of the generated acceleration and reverse air flow, the dust attached to the bag falls off to the ash hopper, and the dust is discharged from the ash discharge port. discharge. Because there is a lot of dust and exhaust gas in the box, the dust exhaust gas is continuously sucked and sprayed by the dust suction fan and the blowing device, and the temperature in the box will continue to rise. When the temperature in the box reaches 85-90 degrees, the nozzle sprays the inside of the device. Spraying can reduce the temperature inside the device, and at the same time make the dust aggravated and fall by itself. The dust accumulation on the dust bag is removed by pulse air flow back blowing, the dust removal effect is good, and the pulse cycle and pulse width can also be adjusted by the pulse signal controller. To change the duration and interval of the blowing operation, so that the dust bag can maintain a good filtering state, with high dust collection efficiency, low energy consumption, strong purification ability, large gas processing capacity, safe and reliable operation, and because it uses compressed air To blow back the dust, the dust bag has no mechanical movement, greatly prolonging the service life and long service life, and the maintenance workload is small. In addition, the overall structure is compact, high strength, strong rigidity, good sealing, easy operation and maintenance, which is conducive to wide application, especially suitable for It is used in dust purification in various industrial fields such as hardware, building materials, ceramics, electronics, chemicals, casting, aluminum products, metallurgy, machining, non-ferrous metals, etc. Improve the quality of products in various industrial fields such as gold, machining, and non-ferrous metals, and reduce dust pollution in workshops.

The beneficial effect of the utility model is that: the utility model has an ingenious and reasonable structural design, and has the following advantages:

(1) High dust removal efficiency, dust removal efficiency ≥ 99%;

(2) The processed dust can be recycled;

(3) The external dimensions of dust removal can be set according to the designed air volume;

(4) High degree of automation;

(5) When the temperature inside the box reaches 85-90 degrees, the nozzle sprays the inside of the device, which can reduce the temperature inside the device and make the dust aggravate and fall off by itself.

The above embodiment is only a description of the preferred implementation of the utility model, and is not intended to limit the scope of the utility model. On the premise of not departing from the design spirit of the utility model, ordinary engineers and technicians in the field made the technical solution of the utility model Various modifications and improvements should fall within the protection scope determined by the claims of the present utility model.

Claims (7)

1. a fire prevention dedusting integral type pulse bag type dust collector, including casing, it is characterized in that: described casing is from top to bottom divided into gas zones, dust deashing region and ash discharge region, described front end, dust deashing region is provided with entering-dust mouth, described gas zones is provided with air port, described air port connection airduct, described airduct end is connected with evacuated tube and dust absorption fan respectively, it is provided with installing frame in described dust deashing region, described installing frame is made up of keel shoe, some filter bags it are provided with in described keel shoe, described filter bag top is provided with blowing device, described blowing device connects pulser, it is provided with pressure transducer in described casing, described pressure transducer is electrically connected with dust absorption fan, described dust deashing region and ash discharge is interregional is provided with extinguishing pipe, extinguishing pipe is provided with several shower nozzles.

A kind of fire prevention dedusting integral type pulse bag type dust collector the most according to claim 1, it is characterized in that: described blowing device includes that the injection tube that air reservoir connects with air reservoir, the nozzle body being fixed in injection tube, nozzle body are provided with nozzle and drainage channel, drainage channel diameter is up big and down small, described nozzle is arranged on nozzle body, and be enclosed in drainage channel, the port of export of nozzle is corresponding with the small end of drainage channel, drainage channel guides air-flow that air-flow jetted by nozzle to hold greatly entrance, small end outflow from drainage channel.

A kind of fire prevention dedusting integral type pulse bag type dust collector the most according to claim 2, it is characterized in that: big up and small down horn-like of described drainage channel, its stub end is fixed on nozzle body, the stub end of described drainage channel and nozzle body integrated setting.

A kind of fire prevention dedusting integral type pulse bag type dust collector the most according to claim 1, it is characterised in that: described evacuated tube and dust absorption fan junction are additionally provided with deafener.

A kind of fire prevention dedusting integral type pulse bag type dust collector the most according to claim 4, it is characterized in that: described deafener includes shell, inner shell, the silencing cotton being located between shell and inner shell, acoustical panel, porous sound absorbing pipe, shell and inner shell form cavity, silencing cotton is filled in cavity, the interior shell side wall contacted with silencing cotton is provided with sound-absorption hole, inner shell one end connects dust absorption fan, the other end of inner tube connects evacuated tube, inner shell includes two or more than two the acoustical panel being sequentially overlapped, and acoustical panel is perpendicular to air intake direction.

A kind of fire prevention dedusting integral type pulse bag type dust collector the most according to claim 1, it is characterised in that: described ash discharge sections bottom is provided with ash bucket.

A kind of fire prevention dedusting integral type pulse bag type dust collector the most according to claim 1, it is characterised in that: described body side is provided with cat ladder, and described box top and either side are provided with grille.