CN112452088A

CN112452088A - High-efficient compound dust collecting equipment

Info

Publication number: CN112452088A
Application number: CN202011322686.8A
Authority: CN
Inventors: 宋明泽; 李刚
Original assignee: Zhejiang Hongsheng New Material Technology Group Co ltd
Current assignee: Zhejiang Hongsheng New Material Technology Group Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-03-09

Abstract

The invention discloses a high-efficiency composite dust removing device, which comprises: the dust and air collecting device comprises a dust and air chamber, wherein one side of the dust and air chamber is provided with at least one air inlet, and the bottom of the dust and air chamber is provided with at least one dust outlet; the air outlet end of the air inlet pipeline is communicated with the air inlet of the dust air chamber; the filter cartridges and the filter bags are alternately arranged in the dust and air chamber along the horizontal direction; the air purifying chamber is arranged at the top end of the dust gas chamber, and airflow in the dust gas chamber enters the air purifying chamber after flowing through the filter cartridge or the filter bag; and the air inlet end of the air outlet pipeline is communicated with the air outlet of the air purifying chamber. The structural design of the high-efficiency composite dust removing equipment can ensure that the filtering area is ensured, the cost is not too high, the size of the dust remover can be reduced, and the occupied area is reduced.

Description

High-efficient compound dust collecting equipment

Technical Field

The invention relates to the technical field of flue gas dust removal, in particular to high-efficiency composite dust removal equipment.

Background

China has already listed the energy-saving and environment-friendly industry as the first of the strategic emerging industry, the environmental protection, energy conservation and emission reduction have become the key work of the current and the long future period, and the environmental protection of industrial enterprises is more important. Electric dust removal and bag type dust removal are the leading technologies of industrial environment-friendly dust removal at present, and along with the strictness of the environmental protection policy, the application of the bag type dust removal is wide.

The process principle of the bag type dust collector is that a physical interception mode is adopted to realize gas-solid separation, the core component of the bag type dust collector is a dust collection filter bag, and the performance of the bag type dust collector directly determines the performance index of the bag type dust collector. Due to the improvement of the requirements of energy conservation, consumption reduction, land conservation and the like, the filter cartridge dust remover becomes an upgraded substitute in some working conditions, and is increasingly applied to the dust removal industry at home and abroad. Compared with the traditional bag type dust collector, the filter cartridge dust collector has the characteristics of large effective filtering area, low resistance, low emission, small volume, long service life and the like, but the cost of the filter cartridge is relatively high.

Disclosure of Invention

In view of the above, the present invention provides a high-efficiency composite dust removing apparatus, which has a structure designed to ensure a filtering area without causing an excessive cost.

In order to achieve the first object, the invention provides the following technical scheme:

a high efficiency composite dust removal apparatus comprising:

the dust and air collecting device comprises a dust and air chamber, wherein one side of the dust and air chamber is provided with at least one air inlet, and the bottom of the dust and air chamber is provided with at least one dust outlet;

the air outlet end of the air inlet pipeline is communicated with the air inlet of the dust air chamber;

the filter cartridges and the filter bags are alternately arranged in the dust and air chamber along the horizontal direction;

the air purifying chamber is arranged at the top end of the dust gas chamber, and airflow in the dust gas chamber enters the air purifying chamber after flowing through the filter cartridge or the filter bag;

and the air inlet end of the air outlet pipeline is communicated with the air outlet of the air purifying chamber.

Preferably, the high-efficiency composite dust removing equipment further comprises a pre-charging device, and the pre-charging device is arranged at the upstream of the filter cartridges and the filter bags.

Preferably, the efficient composite dust removing equipment further comprises a guide plate arranged in the dust and air chamber, and the guide plate is inclined from top to bottom towards a direction close to the plurality of filter cartridges and the plurality of filter bags.

Preferably, in the above high-efficiency composite dust removing device, the air inlet duct includes an air inlet pipe and an air inlet box connected to an air outlet end of the air inlet pipe, which are connected in sequence; the air outlet pipeline comprises an air outlet pipe and an air outlet box, wherein the air outlet pipe and the air outlet box are sequentially connected;

the air inlet box and the air outlet box are both horn-shaped, the ventilation section of the air inlet box is gradually increased along the direction close to the dust air chamber, and the ventilation section of the air outlet box is gradually increased along the direction close to the air purifying chamber.

Preferably, the efficient composite dust removing equipment further comprises a blowing device arranged in the clean air chamber, wherein the blowing device comprises a compressed air storage tank and a plurality of blowing pipes;

and a plurality of injection pipes of the injection device are respectively opposite to the air outlets of the filter cartridges and the filter bags.

Preferably, the efficient composite dust removing equipment further comprises an auxiliary ash removal device arranged in the dust chamber, and the auxiliary ash removal device can spray a soot blowing airflow.

Preferably, the efficient composite dust removing equipment further comprises an ash hopper communicated with an ash outlet of the dust chamber and an ash conveying device connected with the bottom of the ash hopper;

still including set up in draught fan on the air-out pipeline.

Preferably, in the above high-efficiency composite dust removing apparatus, the plurality of filter cartridges and the plurality of filter bags are sequentially arranged at intervals in the dust and air chamber.

Preferably, in the high-efficiency composite dust removing device, a gap is formed between the bottom ends of the filter cartridges and the filter bags and the bottom wall of the dust chamber.

Preferably, in the above high-efficiency composite dust removing apparatus, the dust chamber and the air purifying chamber are integrated in the same box, and the dust chamber and the air purifying chamber are separated by a partition plate

When the high-efficiency composite dust removal equipment is applied, dust-carrying airflow enters the dust air chamber through the air inlet pipeline and the air inlet at one side of the dust air chamber, air in the dust air chamber enters the plurality of filter cylinders and the plurality of filter bags for filtering, airflow filtered by the plurality of filter cylinders and the plurality of filter bags enters the air purifying chamber, and finally the air in the air purifying chamber can be discharged through the air outlet pipeline. In the filtering process, the dust-carrying airflow enters the dust air chamber through the air inlet on one side of the dust air chamber, and a plurality of filter bags and a plurality of filter cylinders in the dust air chamber are used for filtering simultaneously, so that the filtering area is ensured, and the cost is not increased greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an efficient composite dust removing device provided by an embodiment of the invention.

In fig. 1:

1-a composite dust collector body, 2-a control system, 11-an air inlet pipe, 12-an air inlet box, 13-a pre-charging device, 14-a guide plate, 21-a dust air chamber, 22-a porous plate, 23-a filter cylinder, 24-a filter bag, 31-a compressed air storage tank, 32-a blowing device, 33-an auxiliary ash removal device, 41-an air purification chamber, 42-an air outlet box, 43-an air outlet pipe, 44-an induced draft fan, 45-a chimney, 51-an ash hopper and 52-an ash conveying device.

Detailed Description

The invention aims to provide high-efficiency composite dust removing equipment, which has a structural design that the filtering area can be ensured and the cost cannot be overhigh.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, the high-efficiency composite dust removing apparatus provided by the present invention includes a dust chamber 21, an air inlet duct, a plurality of filter cartridges 23, a plurality of filter bags 24, an air purifying chamber 41, and an air outlet duct.

At least one air inlet is arranged on one side of the dust chamber 21. I.e. the air inlet is located on one side wall of the dust chamber 21. Preferably, the air inlet is opened at the top of the side wall of the dust chamber 21. At least one dust outlet is arranged at the bottom of the dust chamber 21, and dust is discharged through the dust outlet at the bottom of the dust chamber 21.

The air outlet end of the air inlet pipeline is communicated with the air inlet of the dust air chamber 21, and dust-carrying air in the air inlet pipeline flows into the dust air chamber 21 through the air outlet end of the air inlet pipeline.

The plurality of filter cartridges 23 and the plurality of filter bags 24 are all disposed in the dust and air chamber 21, and the plurality of filter cartridges 23 and the plurality of filter bags 24 are sequentially arranged in the dust and air chamber 21 in a horizontal direction. That is, a plurality of filter cartridges 23 and a plurality of filter bags 24 are located in the same row, a gap is provided between any filter cartridge 23 and its adjacent filter bag 24 or filter cartridge 23, and a gap is provided between any filter bag 24 and its adjacent filter bag 24 or filter cartridge 23. The upper end of the filter cartridge 23 and the upper end of the filter bag 24 are both fixedly connected with the top wall of the dust air chamber 21, through holes are arranged at the positions of the top wall of the dust air chamber 21, which are opposite to the inside of the filter cartridge 23 and the inside of the filter bag 24, and gas entering the filter cartridge 23 and the filter bag 24 can be discharged through the through holes at the top of the dust air chamber 21. The axial directions of the filter cartridge 23 and the filter bag 24 may be arranged vertically or the included angle between the axial directions of the filter cartridge 23 and the filter bag 24 and the vertical plane is an acute angle, which is not limited herein.

The air purifying chamber 41 is disposed at the top end of the dust chamber 21, and the air flow in the dust chamber 21 enters the air purifying chamber 41 after passing through the filter cartridge 23 or the filter bag 24.

The air inlet end of the air outlet pipeline is communicated with the air outlet of the air purifying chamber 41, namely, the filtered air entering the air purifying chamber 41 can be discharged through the air outlet pipeline. The air outlet of the air purifying chamber 41 may be located at the top of the air purifying chamber 41 or may be located at one side of the air purifying chamber 41, which is not limited herein.

When the high-efficiency composite dust removing equipment is applied, dust-carrying air flows into the dust air chamber 21 through the air inlet pipeline and the air inlet at one side of the dust air chamber 21, air in the dust air chamber 21 enters the filter cartridges 23 and the filter bags 24 for filtering, air flow filtered by the filter cartridges 23 and the filter bags 24 enters the air purifying chamber 41, and finally air in the air purifying chamber 41 can be discharged through the air outlet pipeline. In the filtering process, the dust-carrying air flow enters the dust air chamber 21 through the air inlet at one side of the dust air chamber 21, and the plurality of filter bags 24 and the plurality of filter cartridges 23 are simultaneously filtered in the dust air chamber 21, so that the filtering area is ensured, and the cost is not increased greatly.

The dust chamber 21 and the air purifying chamber 41 and the components inside thereof form the composite dust collector body 1.

In an embodiment, the high efficiency compound dust removing apparatus may further include a pre-charging device 13, and the pre-charging device 13 is disposed upstream of the plurality of filter cartridges 23 and the plurality of filter bags 24. That is, the dust-carrying airflow entering the dust air chamber 21 through the air inlet at one side of the dust air chamber 21 passes through the pre-charging device 13, and then passes through the plurality of filter cartridges 23 and the plurality of filter bags 24. Specifically, the pre-charging device 13 may be disposed in the air inlet duct, and the pre-charging device 13 is disposed at the air outlet end of the air inlet duct. The pre-charging device 13 is arranged on the lower side of the air inlet of the dust air chamber 21, so that dust can be charged, fine dust after charging can be condensed into larger particles, one part of the fine dust directly falls off from the dust outlet along with air flow, and the other part of the fine dust forms a dust layer with a loose structure on the surface of the filter cylinder 23, meanwhile, the dust charging is favorable for capturing, and the dust concentration at the inlet of the dust air chamber 21 can be greatly improved. Test data show that the high-efficiency composite dust removing equipment provided with the pre-charging device 13 can improve the filtering efficiency by one order of magnitude, obviously reduce the filtering resistance, facilitate the improvement of the filtering speed and prolong the service life of the filter cylinder 23.

The pre-charging device 13 is fixed inside the air inlet pipeline and can be relatively fixed with the air inlet pipeline in a bolt connection mode, a clamping connection mode and the like.

In another embodiment, the high-efficiency compound dust removing apparatus further comprises a flow guide plate 14 disposed in the dust chamber 21, and the flow guide plate 14 is gradually inclined from top to bottom in a direction approaching the plurality of filter cartridges 23 and the plurality of filter bags 24. That is, the air deflector 14 is disposed on the side wall of the dust chamber 21 where the air inlet is disposed, and the air deflector 14 is inclined from top to bottom gradually toward the direction away from the side wall where the air inlet is disposed. So set up, the dust flue gas gets into dirt air chamber 21 under the guide of guide plate 14, and the flow direction of dust flue gas behind guide plate 14 changes, so not only can overcome the dust and directly erode the shortcoming of straining a section of thick bamboo 23 and wearing and tearing a section of thick bamboo 23 easily, can also make the inside air current distribution of dirt air chamber 21 more even, has avoided the existence at air inlet dead angle.

Preferably, the air inlet is opened at the top of the side wall of the dust chamber 21. Thus, the air inlet flow flows downwards under the action of the guide plate 14, the flowing direction is consistent with the falling direction of the dust, the dust can fall to the dust outlet at the bottom of the dust air chamber 21, the dust settling is facilitated, and the raised dust is effectively reduced.

The deflector 14 is fixed inside the dust chamber 21, and specifically, the deflector 14 may be bolted, clamped or welded inside the dust chamber 21, which is not limited herein.

In this embodiment, filter cartridge 23 comprises a support cartridge, pleated filter media, a first cover, and a second cover. Wherein, the fold filter material is coated on the outer wall of the supporting cylinder. The first cover and the second cover are respectively fixedly connected with two ends of the supporting cylinder, and the first cover and the second cover can be connected with the supporting cylinder through bolts or clamped, so that subsequent maintenance and overhaul are facilitated.

The wall of the supporting cylinder is provided with a plurality of through holes, so that the air flow passing through the folded filter material enters the supporting cylinder through the through holes on the supporting cylinder. The upper end of the support cylinder forms the outlet of the filter cartridge 23. The lower end of the supporting cylinder is closed or covered by the filter material.

When the filter drum 23 is used for filtering, dust-carrying air flows through the pleated filter material and then enters the support drum, and the air in the support drum is discharged through an air outlet of the support drum.

The filter cartridge 23 is preferably a high temperature resistant filter cartridge 23, and the filter cartridge 23 is prepared by first processing a filter material into a pleated structure and folding the high temperature resistant filter material according to the process requirements by a folding machine. The pleated refractory filter material is connected at one end to a first lid and at the other end to a second lid to form a refractory filter cartridge 23. The support cylinder is made of metal materials to ensure that the corrugated filter material cannot deform when the ash is removed by blowing.

The folded filter material can be a rigid glass fiber filter material, a rigid glass fiber membrane-coated filter material, a rigid perlite expanded felt filter material, a rigid glass fiber mixed woven filter material, a rigid high silica (modified) fiber membrane-coated filter material and the like.

In this embodiment, the filter bag 24 includes a support frame and a filter bag 24 sleeved on the support frame.

It should be noted that, a through hole communicated with the air purifying chamber 41 is arranged on the top wall of the dust air chamber 21, an air outlet of the support cylinder is communicated with the through hole on the top wall of the dust air chamber 21, and the air outlet of the support cylinder is hermetically connected with the top wall of the dust air chamber 21, so that when normal filtration is ensured, the gas in the dust air chamber 21 can only enter the support cylinder through the pleated filter material, and the gas in the support cylinder can only flow into the air purifying chamber 41. The top wall of the dust chamber 21 may be a perforated plate 22.

Preferably, the air inlet duct comprises an air inlet pipe 11 and an air inlet box 12 connected with the air outlet end of the air inlet pipe 11 which are connected in sequence, and the dust-carrying air flow enters the dust air chamber 21 after passing through the air inlet pipe 11 and the air inlet box 12 in sequence. The inlet box 12 may be formed in a horn shape, and the ventilation section of the inlet box 12 is gradually increased in a direction approaching the dust chamber 21. That is, the ventilation cross section of the air outlet end of the air inlet box 12 is larger than that of the air inlet end. So set up, can further guarantee to get into the air current in the dirt air chamber 21 more even.

The pre-charging device 13 may be disposed at the air outlet end of the air inlet box 12 or in the air inlet pipe 11, and is not limited herein.

The air outlet pipeline comprises an air outlet pipe 43 and an air outlet box 42 connected with the air inlet end of the air outlet pipe 43, which are connected in sequence, and air flow is discharged after passing through the air outlet box 42 and the air outlet pipe 43 in sequence. The air outlet box 42 may be horn-shaped, and the ventilation section of the air outlet box 42 gradually increases in a direction approaching the air purifying chamber 41. So set up, can further guarantee that the air-out air current is more even.

Preferably, the high-efficiency composite dust removing apparatus further comprises a blowing device 32 disposed in the air purifying chamber 41. When the surface dust layers of the filter cartridge 23 and the filter bag 24 are thick, the flue gas dedusting can be stopped, the blowing device 32 is started, the airflow blown by the blowing device 32 enters the filter cartridge 23 and the filter bag 24 of the dust air chamber 21, and then the airflow is diffused outwards from the inside of the filter cartridge 23 and the filter bag 24 so as to blow away the surface dust of the filter cartridge 23 and the filter bag 24, and the dust falls to the dust outlet. The blowing device 32 blows air flow opposite to the air flow in the flue gas dedusting process.

The blowing device 32 comprises a compressed air reservoir 31 and a plurality of blowing tubes. The plurality of blowing pipes of the blowing device 32 are opposed to the air outlets of the plurality of filter cartridges 23 and the plurality of filter bags 24, respectively. Therefore, one injection pipe is opposite to one filter cylinder 23 or one filter bag 24, and each filter cylinder 23 or each filter bag 24 can be blown by airflow sprayed by the injection pipe in the ash removal process, so that the ash removal efficiency is greatly improved.

In order to further improve the ash removal effect, the composite dust removing equipment further comprises an auxiliary ash removal device 33 arranged in the dust air chamber 21, wherein the auxiliary ash removal device 33 can spray ash-blowing air flow so as to effectively remove dust accumulated in the depth of the filter cartridge 23 or the filter bag 24, prolong the service life of the filter cartridge 23 and the filter bag 24 and improve the filtering efficiency.

Preferably, the auxiliary ash removing device 33 is disposed on a side wall of the dust and air chamber 21 away from the air inlet thereof, which is not limited herein.

In order to collect the dust collected to the dust outlet in time, the composite dust removing apparatus further comprises a dust hopper 51 communicated with the dust outlet of the dust chamber 21 and a dust conveying device 52 connected with the bottom of the dust hopper 51. The top opening of the ash bucket 51 is connected with the ash outlet, so that the dust falls into the ash outlet and then enters the ash bucket 51, and finally is transferred through the ash conveying device 52.

In the above embodiment, the ash conveying device 52 may be a screw device, a pneumatic device, etc., and is not limited herein.

In order to discharge filtered gas in time, the compound dust removing equipment also comprises a draught fan 44 arranged on the air outlet pipeline, and the tail end of the air outlet pipeline can be directly connected with a chimney 45.

In order to ensure the uniformity of filtration in the dust chamber 21, a plurality of filter cartridges 23 and a plurality of filter bags 24 may be alternately arranged in sequence in the dust chamber 21. That is, a plurality of filter cartridges 23 and a plurality of filter bags 24 are sequentially arranged at intervals in the horizontal direction.

In order to facilitate dust falling, a gap is provided between the bottom ends of the plurality of filter cartridges 23 and the plurality of filter bags 24 and the bottom wall of the dust chamber 21. In this manner, dust can flow in the gap between the bottom ends of the plurality of filter cartridges 23 and the plurality of filter bags 24 and the bottom wall of the dust chamber 21 until falling into the dust outlet.

In a preferred embodiment, the dust chamber 21 and the air purifying chamber 41 are integrated in the same box, and the dust chamber 21 and the air purifying chamber 41 are separated by a porous partition. Therefore, the filter cartridge 23, the filter bag 24, the guide plate 14 and the blowing device 32 can be integrated in the box body, the modular manufacturing and processing are more convenient, all parts are basically processed in a factory and transported to a field for assembly, and the composite dust removing device can be manufactured, and the construction period is reduced by more than 2/3 compared with that of a common dust remover. During specific application, a single composite dust removing device can be used according to working conditions and filtering areas, and a plurality of composite dust removing devices can be overlapped, connected and combined together for use, so that the occupied space is saved, and the production efficiency is improved.

As a more specific example, the composite dust removing apparatus includes a dust chamber 21, an air inlet duct 11, an air inlet box 12, a pre-charging device 13, a deflector 14, a plurality of filter cartridges 23, a plurality of filter bags 24, a clean air chamber 41, a blowing device 32, an air outlet box 42, an air outlet duct 43, an ash hopper 51, and an ash conveying device 52. The pre-charging device 13 is fixed in the air inlet box 12, and the guide plate 14 is fixed on the side wall of the dust air chamber 21 with the air inlet. A plurality of filter cartridges 23 and a plurality of filter bags 24 are arranged in the dust air chamber 21, the filter cartridges 23 and the filter bags 24 are alternately arranged, the air purifying chamber 41 is communicated with air outlets of the filter cartridges 23 and the filter bags 24 in the dust air chamber 21, and the blowing device 32 is positioned in the air purifying chamber 41.

When the composite dust removing device in the above embodiment performs flue gas treatment, the dust-containing flue gas enters the dust chamber 21 from the upper part of the side wall through the air inlet pipe 11 and the air inlet box 12, part of fine dust is condensed into large-particle dust under the action of the inlet pre-charging device 13, the direction of the air flow is changed after passing through the guide plate 14, and part of the large-particle dust falls into the dust hopper 51 under the action of inertia at an accelerated speed. The high-temperature dust-containing flue gas enters the dust air chamber 21 under the guidance of the guide plate 14, the dust-containing air flow passes through the high-temperature filter cartridge 23 and the filter bag 24, the dust is trapped on the surface, and the clean gas enters the air purifying chamber 41. The dust accumulation on the surfaces of the filter cartridge 23 and the filter bag 24 can cause the resistance of the dust removal system to rise, after the resistance reaches a certain set value, the blowing device 32 distributed in the air purifying chamber 41 of the dust remover box body can perform dust removal on the filter cartridge 23 and the filter bag 24, and the dust deposited on the surfaces of the high-temperature filter cartridge 23 and the filter bag 24 falls into the dust hopper 51 and is output through the dust conveying device 52. The auxiliary ash removal device 33 removes dust hidden in the folds of the filter cartridge 23, and the direction of the auxiliary ash removal airflow is consistent with that of the dust-containing airflow, so that the removal of the dust on the surface of the filter cartridge 23 is facilitated. The filter cartridge 23 and the filter bag 24 are regenerated after ash removal, low-resistance operation is recovered, and the filtered and purified gas is discharged out of the dust remover through an air outlet at one side of the air purifying chamber 41 and an air outlet pipeline and is discharged through a chimney 45 under the traction of an induced draft fan 44.

The high-efficiency composite dust removing equipment also comprises a control system 2, wherein the control system 2 is mainly used for automatic and linkage control among systems when the high-efficiency composite dust removing equipment operates, and the operation of a dust remover in a high-efficiency, stable and safe state is ensured.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. The utility model provides a high-efficient compound dust collecting equipment which characterized in that includes:

the dust collection device comprises a dust chamber (21), wherein at least one air inlet is formed in one side of the dust chamber (21), and at least one dust outlet is formed in the bottom of the dust chamber (21);

the air outlet end of the air inlet pipeline is communicated with the air inlet of the dust air chamber (21);

a plurality of filter cartridges (23) and a plurality of filter bags (24), wherein the filter cartridges (23) and the filter bags (24) are alternately arranged in the dust air chamber (21) along the horizontal direction;

the air purifying chamber (41), the air purifying chamber (41) is arranged at the top end of the dust chamber (21), and the airflow in the dust chamber (21) enters the air purifying chamber (41) after flowing through the filter cartridge (23) or the filter bag (24);

and the air inlet end of the air outlet pipeline is communicated with the air outlet of the air purifying chamber (41).

2. The high-efficiency compound dust removal device according to claim 1, further comprising a pre-charging device (13), wherein the pre-charging device (13) is disposed upstream of the plurality of filter cartridges (23) and the plurality of filter bags (24).

3. The high-efficiency compound dust removing device according to claim 1, further comprising a deflector (14) disposed in the dust chamber (21), wherein the deflector (14) is gradually inclined from top to bottom in a direction approaching the plurality of filter cartridges (23) and the plurality of filter bags (24).

4. The high-efficiency composite dust removing device as claimed in claim 1, wherein the air inlet duct comprises an air inlet pipe (11) and an air inlet box (12) connected with the air outlet end of the air inlet pipe (11) which are connected in sequence; the air outlet pipeline comprises an air outlet pipe (43) and an air outlet box (42) which are connected in sequence, wherein the air outlet box is connected with the air inlet end of the air outlet pipe (43);

the air inlet box (12) and the air outlet box (42) are both horn-shaped, the ventilation section of the air inlet box (12) is close to the direction of the dust air chamber (21) and gradually increases, and the ventilation section of the air outlet box (42) is close to the direction of the air purifying chamber (41) and gradually increases.

5. The high-efficiency composite dust removing device as recited in claim 1, further comprising a blowing device (32) disposed in said air purifying chamber (41), said blowing device (32) comprising a compressed air storage tank (31) and a plurality of blowing pipes;

the plurality of blowing pipes of the blowing device (32) are respectively opposite to the air outlets of the plurality of filter cartridges (23) and the plurality of filter bags (24).

6. The high-efficiency compound dust removing device according to claim 1, further comprising an auxiliary ash removing device (33) arranged in the dust chamber (21), wherein the auxiliary ash removing device (33) can spray a soot blowing airflow.

7. The high-efficiency composite dust removing device according to claim 1, further comprising an ash hopper (51) communicated with the ash outlet of the dust chamber (21) and an ash conveying device (52) connected with the bottom of the ash hopper (51);

still including set up in draught fan (44) on the air-out pipeline.

8. The high efficiency compound dust removing apparatus as claimed in claim 1, wherein there is a gap between the bottom ends of the plurality of filter cartridges (23) and the plurality of filter bags (24) and the bottom wall of the dust chamber (21).

9. The high-efficiency composite dust removing device according to any one of the claims 1 to 8, wherein the dust chamber (21) and the air purifying chamber (41) are integrated in the same box, and the dust chamber (21) and the air purifying chamber (41) are separated by a partition.