CN205517057U - Dust removal device for noise reduction and noise reduction - 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 dust removal device for noise reduction and silencing, 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 electrically connected with a dust collection fan, and a silencer is further arranged at the joint of the emptying pipe and the dust collection fan.

Description

Dust removal device for noise reduction and noise reduction

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 noise-reducing and sound-absorbing dust-removing device.

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 maintain a clean production environment, places polluted by dust must be cleaned up in time. The noise reduction and noise reduction dust removal device can be widely used in cleaning and polishing machines, automobiles, motorcycles, spring grinding machines in the spring industry, chemicals, cement building materials, wood processing, grain processing, pharmaceuticals, and mechanical processing energy industries. Although the current noise reduction and noise reduction dust removal device can achieve the effect of dust removal, it has large volume, complex structure, high installation cost, unsatisfactory dust removal and dust removal effect, and high energy consumption.

Utility model content

In order to solve the above problems, the utility model provides a dust removal device for noise reduction and noise reduction.

In order to achieve the above purpose, the utility model adopts the following technical solution: a dust removal device for noise reduction and noise reduction, including a box body, and the box body is divided into a gas area, a dust collection and ash removal area and an ash discharge area from top to bottom , 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 with a ventilation pipe, and the end of the air pipe is respectively connected with an emptying pipe and a dust suction fan, There is an installation frame in the dust collecting and cleaning area, and a number of filter bags are arranged in the installation frame, and a blowing device is installed on the top of the filter bag, and the blowing device is connected with a pulse device. The box is provided with a pressure sensor, and the pressure sensor is electrically connected to the dust collection fan, and a muffler is also provided at the connection between the exhaust pipe and the dust collection 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, 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, the installation frame is composed of dragon skeleton.

Preferably, a fire pipe is provided between the dust collection and cleaning area and the ash discharge area, and several nozzles are provided on the fire pipe, which will automatically burst and spray water when the temperature in the box reaches 80 degrees.

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. The dust accumulation on the dust bag is cleared by pulse air flow back blowing, the dust removal effect is good, and the pulse cycle and pulse width can be adjusted through the pulse signal controller to change the duration and interval of the blowing operation, so that the dust bag Maintain a good filtration state, high dust collection efficiency, low energy consumption, strong purification ability, large gas handling capacity, safe and reliable operation, and because compressed air is used to blow back the dust, the dust bag has no mechanical movement, greatly extending the service life Long service life, small maintenance workload, compact overall structure, high strength, strong rigidity, good sealing, convenient operation and maintenance, conducive to wide application, especially suitable for hardware, building materials, ceramics, electronics, chemicals, casting, aluminum products, Dust purification in metallurgy, machining, non-ferrous metals and other industrial fields, improving product quality in hardware, building materials, ceramics, electronics, chemicals, casting, aluminum products, metallurgy, machining, non-ferrous metals and other industrial fields and reducing workshop dust pollute.

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%;

⑵The treated dust can be recycled;

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

⑷ High degree of automation.

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 noise reduction and noise reduction dust removal device, which includes a box body, a ladder 14 is provided on the side of the box body, and a ladder 14 is provided on the top surface and any side of the box body. Guard grid 15. 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 to produce huge noise when its dust-absorbing blower 4 works, first causes environmental pollution, secondly affects worker's health, easily causes worker's tinnitus, preferably, described emptying pipe 3 and dust-absorbing blower 4 The joint is also provided with a muffler 8, and the muffler 8 includes an outer shell 81, an inner shell 83, a sound-absorbing cotton 82 between the outer shell 81 and the inner shell 83, a sound-absorbing plate 84, a porous sound-absorbing pipe 85, the outer shell 81 and the inner shell 83. The inner shell 83 forms a cavity, and the cavity is filled 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 emptying machine. The pipe 3 and the inner shell 83 include two or more sound-absorbing plates 84 stacked in sequence, and the sound-absorbing plates 84 are perpendicular to the air inlet direction. 84 setting quantity, the sound-absorbing plate 84 is composed of two net plates and the sound-absorbing cotton 82 filled between the two net plates, the weight of the sound-absorbing plate 84 is reduced, and the sound-absorbing effect is good; the porous sound-absorbing tube 85 vertically passes through the above-mentioned sound-absorbing Board 84, the porous sound-absorbing tubes 85 are also provided with multiple, and evenly arranged, in this embodiment, there are nine porous sound-absorbing tubes 85, the number and inner diameter of the porous sound-absorbing tubes 85 are set according to the sound-absorbing requirements; using multi-layer sound-absorbing The 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 muffler 8. The structure is simple, the noise reduction effect is good, the manufacturing cost is low, and it can effectively prevent the muffler cotton 82 from absorbing dust, which improves the performance of the muffler 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. The dust accumulation on the dust bag is cleared by pulse air flow back blowing, the dust removal effect is good, and the pulse cycle and pulse width can be adjusted through the pulse signal controller to change the duration and interval of the blowing operation, so that the dust bag Maintain a good filtration state, high dust collection efficiency, low energy consumption, strong purification ability, large gas handling capacity, safe and reliable operation, and because compressed air is used to blow back the dust, the dust bag has no mechanical movement, greatly extending the service life Long service life, small maintenance workload, compact overall structure, high strength, strong rigidity, good sealing, convenient operation and maintenance, conducive to wide application, especially suitable for hardware, building materials, ceramics, electronics, chemicals, casting, aluminum products, Dust purification in metallurgy, machining, non-ferrous metals and other industrial fields, improving product quality in hardware, building materials, ceramics, electronics, chemicals, casting, aluminum products, metallurgy, machining, non-ferrous metals and other industrial fields and reducing workshop dust pollute.

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%;

⑵The treated dust can be recycled;

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

⑷ High degree of automation.

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 (8)

1. A dust removal device for noise reduction and noise reduction, comprising a box, characterized in that: the box is divided into a gas area, a dust collection and ash removal area and an ash discharge area from top to bottom, and the dust collection and ash removal area The front end 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 respectively connected to an emptying pipe and a dust suction fan. An installation frame is provided, and several filter bags are arranged in the installation frame, and the top of the filter bag is provided with a blowing device, and the blowing device is connected with a pulse device, and a pressure sensor is provided in the box , the pressure sensor is electrically connected to the dust collection fan, and a muffler is also provided at the connection between the exhaust pipe and the dust collection fan. 2. A dust removal device for noise reduction and noise reduction according to claim 1, characterized in that: said muffler comprises an outer shell, an inner shell, sound-absorbing cotton arranged between the outer shell and the inner shell, a sound-absorbing plate, a porous sound-absorbing The tube, the outer shell and the inner shell form a cavity, and the cavity is filled with sound-absorbing cotton. There are sound-absorbing holes on the side wall of the inner shell in contact with the sound-absorbing cotton. The inner shell includes two or more sound-absorbing plates stacked in sequence, and the sound-absorbing plates are perpendicular to the air inlet direction. 3. A noise reduction and noise reduction dust removal device according to claim 1, characterized in that: said blowing device comprises an air storage cylinder, an injection pipe connected to the air storage cylinder, a nozzle body fixed on the injection pipe, and a nozzle The body is provided with a nozzle and a drainage channel, and the diameter of the drainage channel is larger at the top and smaller at the bottom. The nozzle is installed on the nozzle body and is surrounded in the drainage channel. The outlet end of the nozzle corresponds to the small end of the drainage channel, and the drainage channel Guided airflow The airflow blown by the nozzle enters from the large end of the drainage channel and flows out from the small end. 4. A noise reduction and noise reduction dust removal device according to claim 3, characterized in that: the drainage channel is in the shape of a trumpet with a large top and a small bottom, and its big end is fixed on the nozzle body, and the drainage channel is The big end of the nozzle body is integrated with the nozzle body. 5. A noise reduction and noise reduction dust removal device according to claim 1, wherein the installation frame is composed of a keel frame. 6. A noise reduction and noise reduction dust removal device according to claim 1, characterized in that: a fire pipe is provided between the dust collection and ash removal area and the ash discharge area, and several nozzles are arranged on the fire pipe. When the temperature inside the box reaches 80 degrees, it will automatically burst and spray water. 7. A noise reduction and noise reduction dust removal device according to claim 1, characterized in that: an ash hopper is provided at the bottom of the ash discharge area. 8. A noise reduction and noise reduction dust removal device according to claim 1, characterized in that: the side of the box is provided with a climbing ladder, and the top surface and any side of the box are provided with guard grids.