CN111097232A - High-efficient multi-functional gas-solid separator - Google Patents

Abstract

The invention relates to a high-efficiency multifunctional gas-solid separation device which comprises a bell-mouth diffusion tube (1), a primary gravity settling chamber (2), an isolation grid (3), a secondary gravity settling chamber (4), an inertial dust removal device and a discharge opening (7), wherein the bell-mouth diffusion tube (1), the primary gravity settling chamber (2), the isolation grid (3), the secondary gravity settling chamber (4), the inertial dust removal device, the discharge opening (7) and an inlet are detachably assembled and connected, and the gas-solid separation device is fixed by a fixing support (8). The high-efficiency multifunctional gas-solid separation device realizes gas-solid separation through the two-stage gravity settling chamber and inertial dust removal, can adapt to the gas-solid separation of dry and wet mixed materials, and is not limited to be vehicle-mounted in application occasions.

Description

High-efficient multi-functional gas-solid separator

Technical Field

The invention relates to the technical field of gas-solid separation, in particular to a high-efficiency multifunctional gas-solid separation device.

Background

The gas-solid separation technology has wide application requirements in the fields of coal, petroleum, chemical industry, metallurgy, chemical fertilizers, cement, pharmacy, environmental protection and the like. For example, useful materials are recovered in the fields of chemical fertilizers, coal and the like, solid-containing gas is separated in the fields of petroleum, chemical industry and the like, large solid particles are primarily separated in the industries of smelting, cement and the like, then fine filtration is carried out, the environment-friendly emission requirement is met, and a gas-solid separation device is also needed.

Common gas-solid separation methods generally include gravity settling separation, inertial force separation, centrifugal force-dependent cyclone separation, electrostatic force-dependent separation and the like. The separator device corresponding to each mode has the following characteristics: the gravity settling type separator has simple structure and low cost, but has better separation effect only for large particles; when the air flow speed of the inertial separator is high, the inertial effect is obvious, the separation effect is good, but the abrasion of the device can be accelerated; the cyclone separator has simple structure and convenient maintenance, and has poor performance when the flow rate changes greatly; in addition to the above separation devices based on a single separation mechanism, there are also composite devices that are integrated by different separation mechanisms, such as electrostatic and cyclone type, electromagnetic separation type, cyclone pulse bag type, rotating bed type, etc., which generally have good performance, but have complex structures and are not widely used in many cases.

The Chinese patent application with the publication number of CN108421357A discloses a vehicle-mounted dry and wet dual-purpose filtering device, which comprises a storage bin, a first filter, an air channel switching assembly, a dry dust filtering assembly, a dust discharging device and a fan, wherein the storage bin comprises a first accommodating cavity and a second accommodating cavity, the air channel switching assembly is arranged on air inlets of a first air channel and a second air channel of the second accommodating cavity, the dry dust filtering assembly is arranged in the second air channel and comprises a second filter, the second filter is arranged in the second air channel, the fan is arranged at an air outlet of the second filter, the filter is divided into a wet filter and a dry filter, air carrying water vapor and dust is directly discharged from the first air channel after being filtered by the first filter, the air carrying dust is guided to the dry dust filtering assembly for filtering, and the dry and wet dust are distinguished and filtered. The device can avoid the dry and wet air that smugglies dust secretly all to get into single filter and cause the hardening of the last dust of filter for improve screening efficiency.

The vehicle-mounted dry-wet dual-purpose filtering device has the advantages that only one gravity settling chamber is provided, the application occasion is limited to vehicle-mounted, the material inlet is from the bottom, and the filtering depends on primary gravity settling and fine filtering and dust removal.

In order to further improve the efficiency of the gas-solid separation device, the high-efficiency multifunctional gas-solid separation device is designed, the gas-solid separation is realized through two stages of gravity settling chambers and inertial dust removal, meanwhile, the structural form and the operation method of the filtering device in the prior art are improved, and the applicability and the application range of the device are enlarged.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides the high-efficiency multifunctional gas-solid separation device, which realizes gas-solid separation through two stages of gravity settling chambers and inertial dust removal, can adapt to the gas-solid separation of dry and wet mixed materials, and is not limited to be vehicle-mounted in application occasions.

In order to achieve the above object, the present invention adopts the following technical solutions.

The invention provides a high-efficiency multifunctional gas-solid separation device, which comprises an inlet, wherein the inlet is connected with a fan; the device also comprises a bell mouth diffusion tube, a primary gravity settling chamber, an isolation gate, a secondary gravity settling chamber, an inertial dust removal device and a discharge opening; the bell-mouth diffusion tube, the primary gravity settling chamber, the isolation gate, the secondary gravity settling chamber, the inertial dust removal device, the discharge opening and the inlet are detachably assembled and connected.

Preferably, the inlet, the bell mouth diffusion pipe, the primary gravity settling chamber and the isolation grid are arranged at the upper part of the gas-solid separation device.

In any of the above technical solutions, preferably, the secondary gravity settling chamber, the inertial dust removal device, and the discharge opening are disposed at the middle lower portion of the gas-solid separation device.

In any of the above technical solutions, preferably, the gas-solid separation device further includes a fixing bracket, and the fixing bracket fixes the gas-solid separation device.

In any one of the above technical solutions, preferably, one end of the narrow opening of the flared diffuser pipe is communicated with the inlet, and one end of the wide opening is communicated with the primary gravity settling chamber.

In any of the above technical solutions, preferably, the isolation gate is disposed at a connection position of the primary gravity settling chamber and the bell mouth diffusion pipe.

In any of the above technical solutions, preferably, the inertial dust removal device includes a louver and a bottom baffle, and the louver and the bottom baffle are disposed between the primary gravity settling chamber and the secondary gravity settling chamber.

In any of the above solutions, it is preferable that the louver comprises a plurality of louvers.

In any of the above solutions, preferably, the louver is disposed in an inclined manner at a lower portion of the primary gravitational settling chamber.

In any of the above solutions, preferably, the bottom barrier is disposed at a lower portion of the louver.

In any of the above technical solutions, preferably, an outlet is disposed opposite to the inlet, and an air duct is formed between the inlet and the outlet.

In any of the above technical solutions, preferably, the gas-solid separation device comprises at least one set of primary gravity settling chambers.

In any of the above technical solutions, preferably, the set of primary gravity settling chambers are symmetrically arranged on both sides of the air duct.

In any of the above technical solutions, preferably, the gas-solid separation device includes at least one set of louvers.

In any of the above solutions, it is preferable that the set of louvers is arranged in an inclined symmetrical manner between the primary gravity settling chamber and the secondary gravity settling chamber.

In any of the above technical solutions, preferably, the gas-solid separation device further comprises a partition plate, and the partition plate is disposed between the primary gravity settling chamber and the secondary gravity settling chamber.

In any of the above solutions, it is preferred that the fixing bracket comprises at least four bracket bars, and is provided with corresponding fastening connectors.

In any of the above technical solutions, preferably, the four support rods are assembled and connected by fastening connectors to form a fixed support for supporting and fixing the gas-solid separation device.

In any of the above technical solutions, preferably, both the two ports of the flared diffuser pipe are circular ports.

In any of the above technical solutions, preferably, the two ports of the flared diffuser tube adopt a structure in which one end is a circular port and the other end is a square port.

In any of the above technical solutions, preferably, the flared diffuser is horizontally disposed on the upper portion of the gas-solid separation device.

In any of the above technical solutions, preferably, the flared diffuser is vertically arranged at an upper portion of the gas-solid separation device.

In any of the above technical solutions, preferably, the flared diffuser is horizontal and/or vertical and arranged at an angle at the upper part of the gas-solid separation device.

In any of the above technical solutions, preferably, the fixing bracket is made of any one of channel steel, rectangular pipes, angle steel and steel plates.

In any of the above technical solutions, preferably, the inertial dust removal device is a baffle, a grid, or a perforated plate, and the baffle, the grid, or the perforated plate is disposed between the primary gravity settling chamber and the secondary gravity settling chamber.

The invention relates to a high-efficiency multifunctional gas-solid separation device which mainly comprises a bell mouth diffusion tube, a primary gravity settling chamber, an isolation grid, a secondary gravity settling chamber, an inertial dust removal port, a discharge port and a fixed support. The bell-mouthed diffusion pipe is mainly used for realizing uniform diffusion of air in the feeding pipe, reducing the air speed and the acceleration of the air to materials, reducing the pressure drop and having a certain energy-saving effect. The primary gravity settling chamber mainly realizes the settling separation of most materials with larger mass. The secondary gravity settling chamber is used for realizing the settling separation of materials with smaller mass. The inertial dust removal device consists of a plurality of louver plates in the middle and a bottom inclined plate and is used for enhancing the material separation effect with smaller mass. The partition plate is used for separating the primary gravity settling chamber from the secondary gravity settling chamber. The fixed bolster is used for fixing device, no matter be used for on-vehicle or with ground basis all easy dismouting, fixed. The gas-solid separation device is widely applied to industries needing to recover materials and primarily separate solid particles.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

(1) the invention not only has two stages of gravity settling chambers, but also has inertial dust removal, belongs to a composite gas-solid separation device, and has better gas-solid separation effect;

(2) the invention can be used for separating solid and gas, and can also be used for gas-solid separation of impurities such as silt containing a small amount of water, and belongs to dry and wet dual-purpose;

(3) the periphery of the invention is provided with the fixed support, so that the invention can be simply and conveniently disassembled, assembled and fixed no matter used for fixing with a ground foundation or used for vehicle-mounted;

(4) the invention can be applied to the fields of coal, petroleum, chemical industry, metallurgy, chemical fertilizer, cement, pharmacy, environmental protection and the like, can be applied to places with large particle gas-solid separation, and has wide application range.

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, and 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 these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a preferred embodiment of the high-efficiency multifunctional gas-solid separation device according to the present invention;

FIG. 2 is a schematic view showing the air flow process during the operation of the apparatus of the embodiment shown in FIG. 1 of the high efficiency multifunctional gas-solid separation apparatus according to the present invention;

FIG. 3 is a schematic view showing the air flow process in the secondary gravity settling chamber when the apparatus of the embodiment shown in FIG. 1 of the high efficiency multifunctional gas-solid separation apparatus according to the present invention is in operation.

Reference numerals: 1. bell mouth diffuser pipe, 2, one-level gravity settling chamber, 3, barrier, 4, second grade gravity settling chamber, 5, shutter, 6, bottom baffle, 7, discharge opening, 8, fixed bolster, 9, export, 10, baffle.

Detailed Description

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 order to overcome the technical problems of the gas-solid separation device in the prior art, the embodiment of the invention provides the high-efficiency multifunctional gas-solid separation device, which realizes gas-solid separation through two stages of gravity settling chambers and inertial dust removal, is suitable for gas-solid separation of dry and wet mixed materials, has wider application occasions and is not limited to vehicle-mounted.

Example 1

The high-efficient multi-functional gas-solid separator of this embodiment includes the import, and the import is connected with the fan, as shown in fig. 1, the device still includes bell mouth diffuser 1, one-level gravity settling chamber 2, barrier 3, second grade gravity settling chamber 4, inertial dust removal device, discharge opening 7, baffle 10 and fixed bolster 8, bell mouth diffuser 1, one-level gravity settling chamber 2, barrier 3, second grade gravity settling chamber 4, inertial dust removal device, discharge opening 7, baffle 10, fixed bolster 8 and the detachable erection joint of import. The inertial dust removal device comprises a shutter 5 and a bottom baffle 6. The fixed support 8 fixes the gas-solid separation device. As shown in figure 1, an inlet, a bell mouth diffusion pipe 1, a primary gravity settling chamber 2 and an isolation grid 3 are arranged at the upper part of the gas-solid separation device, and a secondary gravity settling chamber 4, an inertial dust removal device, a discharge port 7 and a partition plate 10 are arranged at the middle lower part of the gas-solid separation device.

The structure, features and operation principle of the present embodiment are further described below with reference to fig. 1 to 3.

In the high-efficiency multifunctional gas-solid separation device, one end of a narrow opening of the bell-mouth diffusion pipe 1 is communicated with an inlet, and one end of a wide opening is communicated with the primary gravity settling chamber 2.

In the high-efficiency multifunctional gas-solid separation device, the isolation barrier 3 is arranged at the joint of the primary gravity settling chamber 2 and the bell mouth diffusion tube 1.

In the high-efficiency multifunctional gas-solid separation device, the louver 5 comprises a plurality of louver plates; a shutter 5 and a bottom baffle 6 are arranged between the primary gravity settling chamber 2 and the secondary gravity settling chamber 4. The shutter 5 is obliquely arranged at the lower part of the primary gravity settling chamber 2, and the bottom baffle 6 is arranged at the lower part of the shutter 5.

The high-efficiency multifunctional gas-solid separation device has the advantages that the outlet 9 is arranged opposite to the inlet, and an air channel is formed between the inlet and the outlet 9.

The high-efficiency multifunctional gas-solid separation device comprises a group of primary gravity settling chambers 2, and the primary gravity settling chambers 2 are symmetrically arranged on two sides of an air channel.

The high-efficiency multifunctional gas-solid separation device comprises a group of shutters 5, wherein the group of shutters 5 are obliquely and symmetrically arranged between a primary gravity settling chamber 2 and a secondary gravity settling chamber 4.

In the high-efficiency multifunctional gas-solid separation device of the embodiment, the partition plate 10 is arranged between the primary gravity settling chamber 2 and the secondary gravity settling chamber 4.

In the high-efficiency multifunctional gas-solid separation device of the embodiment, the fixed bracket 8 comprises four bracket rods and is provided with corresponding fastening connecting pieces; the four bracket rods are assembled and connected into a fixed bracket through fastening connecting pieces to support and fix the gas-solid separation device.

In the high-efficiency multifunctional gas-solid separation device of the embodiment, two ports of the bell-mouth diffusion tube 1 are both circular ports.

In the high-efficiency multifunctional gas-solid separation device, the bell-mouth diffusion tube 1 is horizontally arranged on the upper part of the gas-solid separation device.

In the high-efficiency multifunctional gas-solid separation device of the embodiment, the fixing support 8 is made of any one of channel steel, rectangular pipes, angle steel and steel plates.

The high-efficiency multifunctional gas-solid separation device provided by the embodiment mainly comprises a bell mouth diffusion tube, a primary gravity settling chamber, an isolation grid, a secondary gravity settling chamber, an inertial dust removal device, a discharge opening and a fixed support. The bell-mouthed diffusion pipe is mainly used for realizing uniform diffusion of air in the feeding pipe, reducing the air speed and the acceleration of the air to materials, reducing the pressure drop and having a certain energy-saving effect. The primary gravity settling chamber mainly realizes the settling separation of most materials with larger mass. The secondary gravity settling chamber is used for realizing the settling separation of materials with smaller mass. The inertial dust removal device consists of a plurality of louver plates in the middle and a bottom inclined plate and is used for enhancing the material separation effect with smaller mass. The partition plate is used for separating the primary gravity settling chamber from the secondary gravity settling chamber. The fixed bolster is used for fixing device, no matter be used for on-vehicle or with ground basis all easy dismouting, fixed. The gas-solid separation device is widely applied to industries needing to recover materials and primarily separate solid particles.

The high-efficiency multifunctional gas-solid separation device provided by the embodiment can be used for solving the problems of single mode, low efficiency, insufficient application range and the like of the existing gas-solid separation device.

The gas-solid separation device of the embodiment is used for gas-solid separation operation, as shown in fig. 2 to 3, a fan provides corresponding negative pressure, high-speed air conveys materials to an inlet of the device under the action of the negative pressure, then the air and the materials enter the bell-mouth diffusion tube 1, the air is uniformly diffused and decelerated in the bell-mouth diffusion tube 1, and then the air and the materials enter the primary gravity settling chamber 2 together. The material realizes the primary separation of bigger particles in the primary settling chamber 2, the material which is not settled and separated continuously flows to the isolation grid 3 along with the air, part of the material is blocked by the grid when passing through the isolation grid 3 and returns to the primary gravity settling chamber 2 for settling and separation, the material which is not blocked enters the secondary gravity settling chamber 4, and partial settling and separation is realized by gravity. When air and materials meet the shutter 5 in the secondary gravity settling chamber 4, part of the materials are directly blocked and then are decelerated and settled to realize separation, and part of the materials are separated under the action of inertia due to the fact that the direction of airflow is changed after the airflow meets the shutter 4. A further portion of the material meets the bottom baffle 6 with the air up to the bottom of the apparatus, either being blocked from separation or being separated by inertia. The air then flows out of the top duct 9 and the whole separation process is finished. After the material has accumulated to a certain extent, it is discharged through the discharge opening 7.

The high-efficiency multifunctional gas-solid separation device provided by the embodiment can be used for separating solid and gas, can also be used for separating gas and solid containing impurities such as silt with a small amount of water, and belongs to the dual-purpose of dry and wet; the two-stage gravity settling chamber is adopted, materials are subjected to gravity settling twice in the device, the separation efficiency is high, and the effect is better; inertial dust removal is added in the second-stage gravity settling chamber, and the materials are further subjected to gas-solid separation under the action of inertia by suddenly changing the direction of airflow during gravity settling; the bell mouth diffusion pipe is arranged at the material inlet, air is uniformly diffused in the area, the air speed is reduced, the acceleration of the air to the material is reduced, the abrasion of the material to the device is reduced, the air pressure drop is also reduced, and a certain energy-saving effect is achieved; four fixing supports are arranged on the periphery of the vehicle body, can be used for fixing with a ground foundation and can also be used for being mounted on a vehicle, and simple and convenient disassembly, assembly and fixation can be realized; the method can be applied to the fields of coal, petroleum, chemical industry, metallurgy, chemical fertilizers, cement, pharmacy, environmental protection and the like, and can be applied to places with large-particle gas-solid separation.

Example 2

This embodiment may form a complete technical solution alone, may form a complete technical solution in combination with embodiment 1, and may form a complete technical solution in combination with any other embodiment of the present invention.

The embodiment provides a high-efficiency multifunctional gas-solid separation device, and the structure, characteristics and working principle of the device are the same as those of the device described in embodiment 1 and figures 1 to 3. Different from the embodiment 1 and fig. 1, the two ports of the bell-mouth diffusion tube 1 are in a structure that one end is a round port and the other end is a square port.

In the high-efficiency multifunctional gas-solid separation device, the bell-mouth diffusion pipe 1 is used for diffusion, air and materials enter the bell-mouth diffusion pipe 1, the air is uniformly diffused and decelerated in the bell-mouth diffusion pipe 1, and then the air and the materials enter the primary gravity settling chamber 2 together. One end of a narrow opening of the bell-mouth diffusion pipe 1 is communicated with an inlet, and one end of a wide opening is communicated with the primary gravity settling chamber 2; the narrow opening is a round opening, and the wide opening is a square opening; or the wide opening is a round opening, and the narrow opening is a square opening.

Example 3

This embodiment may form a complete technical solution alone, may form a complete technical solution by combining with any one of embodiments 1 to 2, and may form a complete technical solution by combining with any other embodiment of the present invention.

The embodiment provides a high-efficiency multifunctional gas-solid separation device, and the structure, characteristics and working principle of the device are the same as those of the devices in embodiments 1, 2 and 3 and figures 1 to 3. Unlike the previous embodiments, the inertial dust extraction device replaces the louver 5 and bottom baffle 6 structures with baffles, grids, or perforated plates.

The high-efficiency multifunctional gas-solid separation device adopts a baffle, a grid or a pore plate to be arranged between a primary gravity settling chamber 2 and a secondary gravity settling chamber 4.

Example 4

This embodiment may form a complete technical solution alone, may form a complete technical solution by combining with any one of embodiments 1 to 3, and may form a complete technical solution by combining with any other embodiment of the present invention.

The embodiment provides a high-efficiency multifunctional gas-solid separation device, and the structure, characteristics and working principle of the device are the same as those of the devices in embodiments 1 and 2 and figures 1 to 3. Unlike the previous embodiment, the bell mouth diffuser 1 is vertically disposed at the upper portion of the gas-solid separation device.

Example 5

This embodiment may form a complete technical solution alone, may form a complete technical solution by combining with any one of embodiments 1 to 4, and may form a complete technical solution by combining with any other embodiment of the present invention.

The embodiment provides a high-efficiency multifunctional gas-solid separation device, and the structure, characteristics and working principle of the device are the same as those of the devices in embodiments 1 and 2 and figures 1 to 3. Different from the previous embodiment, the bell mouth diffuser pipe 1 is horizontal and/or vertical and arranged at a certain angle at the upper part of the gas-solid separation device.

The embodiment of the invention provides a high-efficiency multifunctional gas-solid separation device which is a technical scheme consisting of a plurality of mechanisms, and different mechanisms are provided with replaceable structures and devices. For example: the bell mouth diffusion tube 1 adopts a structural form that two ends are circular, and can also be replaced by an equal diffusion form that one end is circular and the other end is square; the bell mouth diffusion tube 1 adopts a horizontal arrangement mode, and can also be replaced by a vertical arrangement mode or a certain angle formed between the horizontal mode and the vertical mode; the fixed bracket 8 adopts channel steel and can be replaced by rectangular pipes, angle steel, steel plates and the like; inertial dust removal uses the form of louvers 5 and bottom baffles 6, and baffles, grids, perforated plates and the like can be used instead.

Compared with the prior art, the key of the embodiment provided by the invention is as follows: the high-speed airflow and the materials are subjected to most of the material sedimentation separation in the primary gravity settling chamber 2, then are subjected to the secondary gravity settling chamber 3 and the inertial dust removal (the shutter 5 and the bottom baffle 6), so that the gas-solid separation is realized, the combination of the two-stage gravity settling and the inertial dust removal is realized, the dust removal efficiency is high, and the effect is obvious; the materials conveyed by the high-efficiency multifunctional gas-solid separation device can contain water, and belong to the dual-purpose of dry and wet; the high-efficiency multifunctional gas-solid separation device is provided with a fixed support 8, can be used for vehicle-mounted use and can also be used for being connected and fixed with a ground foundation.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a high-efficient multi-functional gas-solid separator, includes the import, the import is connected with the fan, its characterized in that, gas-solid separator still includes horn mouth diffuser (1), one-level gravity settling chamber (2), barrier (3), second grade gravity settling chamber (4), inertial dust collector and discharge opening (7), horn mouth diffuser (1), one-level gravity settling chamber (2), barrier (3), second grade gravity settling chamber (4), inertial dust collector, discharge opening (7) and the detachable erection joint of import.

2. The high-efficiency multifunctional gas-solid separation device according to claim 1, wherein the inlet, the bell mouth diffuser pipe (1), the primary gravity settling chamber (2) and the isolation barrier (3) are arranged on the upper part of the gas-solid separation device.

3. The high-efficiency multifunctional gas-solid separation device according to claim 1, wherein the secondary gravity settling chamber (4), the inertial dust removal device and the discharge opening (7) are arranged at the middle lower part of the gas-solid separation device.

4. The high efficiency multifunctional gas-solid separation device according to any one of claims 1 to 3, further comprising a fixing support (8), wherein the fixing support (8) is used for fixing the gas-solid separation device.

5. The high-efficiency multifunctional gas-solid separation device according to claim 4, wherein the narrow end of the bell mouth diffusion pipe (1) is communicated with the inlet, and the wide end is communicated with the primary gravity settling chamber (2).

6. The high-efficiency multifunctional gas-solid separation device according to claim 4, wherein the separation grid (3) is arranged at the joint of the primary gravity settling chamber (2) and the bell mouth diffusion pipe (1).

7. The high efficiency multifunctional gas-solid separation device according to claim 4, wherein said inertial dust removal device comprises a louver (5) and a bottom baffle (6), said louver (5) and bottom baffle (6) being arranged between the primary gravity settling chamber (2) and the secondary gravity settling chamber (4).

8. The high efficiency multifunctional gas-solid separation device according to claim 7, wherein said louver (5) comprises a plurality of louvers.

9. The high efficiency multifunctional gas-solid separation device according to claim 7, wherein said louver (5) is obliquely arranged at the lower part of the primary gravity settling chamber (2).

10. The high efficiency multifunctional gas-solid separation device according to claim 7, wherein the bottom baffle (6) is arranged at the lower part of the louver (5).

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