CN210645545U

CN210645545U - Multi-fan filter bag dust removal device

Info

Publication number: CN210645545U
Application number: CN201921252007.7U
Authority: CN
Inventors: 楚孟桥; 何建军
Original assignee: GUANGZHOU LIHUI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: GUANGZHOU LIHUI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-06-02
Anticipated expiration: 2029-08-02

Abstract

The utility model provides a multi-fan filter bag dust collector, including dirty air chamber and air-purifying chamber, dirty air chamber is located the air-purifying chamber below, dirty air chamber is provided with the air intake, the air-purifying chamber is provided with the air outlet, the air intake with switch on through airflow channel between the air outlet, be provided with in dirty air chamber's airflow channel and cross the filter bag, be provided with a plurality of fans in the airflow channel of air-purifying chamber, the gas outlet orientation of fan the air outlet. The utility model provides a multi-fan filter bag dust collector has better dust removal effect.

Description

Multi-fan filter bag dust removal device

Technical Field

The utility model belongs to the dust removal field, concretely relates to multi-fan filter bag dust collector.

Background

In recent years, with the ever-increasing public environmental meaning and the perfection of national environmental protection laws, the green development is more and more emphasized by enterprises. The traditional filter bag dust removal device generally adopts a single fan as an airflow power source, and the power and the air volume are designed according to the maximum required air volume. Because the dust absorption mouth has the condition of asynchronous, need in the past to adopt the converter to change power output frequency according to actual conditions, adjust the supply and demand matching that the fan rotational speed reaches the amount of wind to realize energy-conserving purpose. Single fan frequency conversion has the following disadvantages: a frequency converter is required to be arranged, so that the cost is relatively high; the motor is selected to have a large step difference (such as 55Kw to 75Kw, and the step difference is up to 20 Kw); the air outlet pipe has larger wind power loss; the floor area is large due to the transverse arrangement.

Disclosure of Invention

Not enough to prior art, the utility model provides a better multi-fan filter bag dust collector of dust removal effect.

The utility model provides a multi-fan filter bag dust collector, including dirty air chamber and air-purifying chamber, dirty air chamber is located the air-purifying chamber below, dirty air chamber is provided with the air intake, the air-purifying chamber is provided with the air outlet, the air intake with switch on through airflow channel between the air outlet, be provided with in dirty air chamber's airflow channel and cross the filter bag, be provided with a plurality of fans in the airflow channel of air-purifying chamber, the gas outlet orientation of fan the air outlet.

Preferably, an ash removal device is arranged between the upper portion of the filter bag and the lower portion of the fan, the ash removal device is arranged in the air purifying chamber, and the ash removal device is used for blowing gas to the filter bag.

Preferably, the dirty air chamber and the clean air chamber are divided by a flower plate with a plurality of vent holes, one end of the filter bag is upwards fixed on the flower plate, and the other end of the filter bag is suspended in the dirty air chamber.

Preferably, an ash removal device is arranged between the upper portion of the filter bag and the lower portion of the fan, the ash removal device is arranged in the air purifying chamber, an air blowing opening of the ash removal device faces the opening of the filter bag, and when the ash removal device works, the air blowing opening blows air into the opening of the filter bag.

Preferably, the air inlet is arranged on the side wall of the dirty air chamber, and the opening of the air inlet faces the side wall of the filter bag.

Preferably, the dirty air chamber further comprises an ash bucket arranged outside the air flow channel and below the filter bag and an ash bucket frame used for supporting the ash bucket, and an ash discharging device is arranged at the bottom of the ash bucket.

Preferably, the fan power is below 15 Kw.

Further preferably, the fan power is 10Kw or less.

Preferably, a fan placing plate is arranged above the air purifying chamber, the fan placing plate is provided with a through hole, the through hole is a part of the airflow channel, the fans are provided with check valves, and the number of the fans is 2-8.

Preferably, the interior of the filter bag is filled with a cloth bag holder.

The utility model provides a multi-fan filter bag dust collector has better dust removal effect.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic front view of a multi-fan filter bag dust collector provided in an embodiment of the present invention;

fig. 2 is a schematic top view of the multi-fan filter bag dust collector provided by the embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the following embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

Referring to fig. 1-2, the embodiment of the utility model provides a multi-fan filter bag dust collector, including dirty air chamber 2 and air-purifying chamber 1, dirty air chamber 2 is located air-purifying chamber 1 below to cut apart through the card that has a plurality of air vents, dirty air chamber 2 is provided with air intake 21, and air-purifying chamber 1 is provided with air outlet 22, switches on through airflow channel between air intake 21 and the air outlet 22, and the air current gets into dust collector by air intake 21, flows to air outlet 22 and then discharges through airflow channel. In the airflow path of the dirty air chamber 2 in this embodiment, a filter bag 22 is provided for filtering large particles and dust from the airflow passing through the airflow path. A plurality of fans 12 are arranged in the airflow channel of the air purifying chamber 1, and the air outlets of the fans 12 face the air outlet 22. The fan 12 is used for providing negative pressure, so that the airflow can enter the dust removal device for purification and then is discharged from the dust removal device.

In the multi-fan filter bag dust removal device of the embodiment, under the negative pressure traction of the fan 12, dust enters the dust removal device from the air inlet 21 along with air flow, the filter bag 22 in the air flow channel of the dirty air chamber 2 absorbs and filters the dust, and the purified air enters the purification chamber and is discharged from the air outlet 22. The multi-fan filter bag dust removal device of the embodiment adopts the combination of a plurality of fans 12, so that the wind power loss is reduced. And the fan 12 can be arranged in the dust removal device, the ground does not need to be placed, a special air outlet pipe is not needed, the airflow resistance is reduced, the total energy consumption is reduced, and the occupied area is saved.

In the preferred embodiment, a dust cleaning device 13 is arranged between the upper part of the filter bag 22 and the lower part of the fan 12, the dust cleaning device 13 is arranged in the air purifying chamber 1, and the dust cleaning device 13 is used for blowing gas to the filter bag 22. The dust on the filter bag 22 can continuously drop, and the filter bag 22 can maintain a good adsorption effect. The ash removal device 13 of this embodiment adopts compressed air as the air supply, carries out the pulse injection deashing to the filter bag.

In the preferred embodiment, dirty air chamber 2 and air-purifying chamber 1 are cut apart through the card that has a plurality of air vents, and the one end opening of crossing filter bag 22 is upwards fixed in the air vent of card, and the other end is unsettled in dirty air chamber 2, does benefit to the dust granule and drops, can guarantee the better upward air-purifying chamber 1 that flows of air current after the filtration simultaneously. The vertically arranged filter bags 22 can enable the air flow in the air flow channel to be in more contact with the surfaces of the filter bags 22, and the adsorption effect is improved. The arrangement can also enable the whole dust removal device to be vertically arranged, and the occupied area is small.

In the preferred embodiment, the filter bag 22 is filled with a bag holder, which ensures that a large surface area of the filter cloth is exposed in the airflow channel, and the filtering effect is better. The setting can also avoid unsettled filter cloth to laminate each other under the effect of wind simultaneously like this.

In the preferred embodiment, the blow port of the ash removal device 13 is directed toward the opening of the filter bag 22, and the blow port blows gas into the filter bag opening when the ash removal device 13 is in operation. The ash cleaning device 13 instantly sprays compressed air from the spraying pipe at a high speed, and forms short-time reverse airflow together with secondary tape winding airflow, so that the cloth bag expands and shakes, and dust adsorbed on the surface of the cloth bag is forced to be dispersed and shaken off.

In the preferred embodiment, the intake vent 21 is disposed in the side wall of the dirty air chamber 2, and the opening of the intake vent 21 faces the side wall of the filter bag 22. And a better filtering effect is realized.

In the preferred embodiment, the dirty air chamber 2 further includes a dust hopper disposed outside the airflow path below the filter bag 22 and a dust hopper frame 23 for supporting the dust hopper, so that the dust is sucked out of the dirty air chamber 2 along with the airflow, and then the large particles and the dust finally fall into the dust hopper to be collected through the filter cloth. The bottom of the hopper has a dust discharge device 24 capable of discharging the collected particulate dust.

In a preferred embodiment, fan 12 is less than 15Kw in power. In a further preferred embodiment, fan 12 is powered at less than 10Kw, and in a further preferred embodiment, fan 12 is powered at 3Kw to 10 Kw. A combination mode of a plurality of low-power fans 12 is adopted, generally 7.5Kw is selected as one fan, and a frequency converter is not required to be arranged in a variable-frequency working mode of the plurality of fans 12, so that the cost is relatively low; selecting a smaller step difference by the motor; and air inlet and outlet pipes are not arranged, so that the wind power loss is relatively small and the occupied area is small.

In the preferred embodiment, a fan placing plate 14 is arranged above the air purifying chamber 1, and the fan 12 is changed from being arranged on the ground to being arranged on the top of the dust remover, so that the occupied area is reduced. The fan placing plate 14 is provided with through holes which are part of the airflow channel, the fans 12 are provided with check valves, and the number of the fans 12 is 2-8. The fan combination device can be divided into 2-8 fan 12 combinations according to the high-power requirement, each fan 12 can be started and stopped independently, and each fan 12 is used without interference. Each fan 12 is provided with a check valve plate at the air outlet 22 to prevent the air flow from flowing backwards. The user can select the number of the fans 12 to be started according to the actual air volume requirement, and the energy conservation of supply and demand matching is realized.

The working principle of the dust removing device of the embodiment is as follows: the fan 12 provides negative pressure at the top of the dust removing device, so that air flow and dust enter the dirty air chamber 2 together through the air inlet 21, the air flow and the dust can contact the filter bag 22 in an air flow channel of the dirty air chamber 2, large particles directly fall into the dust hopper under the blocking of the filter bag 22, fine dust can be adsorbed on the outer surface of the filter bag 22, and the filtered air flow flows upwards through the air flow channel to enter the purification chamber and is discharged through the air outlet 22. The dust adsorbed on the surface of the filter bag 22 continuously falls into the ash bucket under the blowing action of the ash cleaning device 13 on the filter bag 22, so that the surface of the filter bag 22 can keep a better filtering effect.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent processes that the present invention is used for are changed, or directly or indirectly used in other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The multi-fan filter bag dust collector is characterized by comprising a dirty air chamber and an air purifying chamber, wherein the dirty air chamber is located below the air purifying chamber, an air inlet is formed in the dirty air chamber, an air outlet is formed in the air purifying chamber, the air inlet is communicated with the air outlet through an air flow channel, a filter bag is arranged in the air flow channel of the dirty air chamber, a plurality of fans are arranged in the air flow channel of the air purifying chamber, and air outlets of the fans face the air outlet.

2. The multi-fan filter bag dust collector of claim 1, wherein a dust removal device is disposed between the filter bag and the fan, the dust removal device being disposed in the air-cleaning chamber, the dust removal device being configured to blow air onto the filter bag.

3. The multiple fan filter bag dust collector of claim 1 wherein said dirty air chamber and said clean air chamber are separated by a perforated plate having a plurality of air vents, said filter bag having one end opening upwardly secured to said perforated plate and the other end suspended in said dirty air chamber.

4. The multi-fan filter bag dust collector of claim 3, wherein a dust removing device is disposed between the upper side of the filter bag and the lower side of the fan, the dust removing device is disposed in the air purifying chamber, an air blowing port of the dust removing device faces the opening of the filter bag, and when the dust removing device is operated, the air blowing port blows air into the opening of the filter bag.

5. The multi-fan filter bag dust extraction apparatus of claim 3, wherein said air inlet is disposed in said dirty air chamber sidewall and said air inlet opens toward said filter bag sidewall.

6. The multiple fan filter bag dust collector of claim 1 wherein said dirty air chamber further comprises a hopper disposed outside said air flow path below said filter bag and a hopper frame for supporting said hopper, said hopper having a dust discharge means at the bottom thereof.

7. The multi-fan filter bag dust collector of claim 1, wherein said fan power is below 15 Kw.

8. The multi-fan filter bag dust collector of claim 7, wherein said fan power is less than 10 Kw.

9. The multi-fan filter bag dust collector of claim 1, wherein a fan placing plate is disposed above the air purifying chamber, the fan placing plate is provided with a through hole, the through hole is a part of the air flow channel, the fans are provided with check valves, and the number of the fans is 2-8.

10. The multiple fan filter bag dust extraction system of claim 1 wherein the interior of said filter bag is filled with a cloth bag holder.