A dust removal device

Abstract

The present invention discloses a dust removal device, which includes a first dust removal mechanism, the first dust removal mechanism is provided with an air inlet and an air outlet, the first dust removal mechanism separates dust in the air by centrifugal force, the first dust removal mechanism is provided with a first collecting chamber; the first dust removal mechanism is provided with a first flushing assembly for cleaning the first collecting chamber; a second dust removal mechanism, the second dust removal mechanism is connected with the air outlet, a filter assembly is provided in the second dust removal mechanism, the filter assembly is used to filter air, the second dust removal mechanism is provided with a second flushing assembly, the second flushing assembly is used to flush the filter assembly; a separation mechanism, the separation mechanism includes a vertical separation cylinder, the first flushing assembly and the second flushing assembly are both connected with the separation cylinder, a third flushing assembly is provided at the bottom of the separation cylinder, and the third flushing assembly at least flushes the separation cylinder. A dust removal device provided by the present invention can improve the separation effect of metal particles and dust particles.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial dust removal, and in particular relates to a dust removal device. Background Art

[0002] During the processing of metal workpieces, a large amount of dust is often generated. For example, abrasive grinding produces tiny dust particles such as diamond and steel sand, and the grinding of metal parts produces metal particles, forming dust containing larger metal particles and small dust particles.

[0003] At present, there are many types of dust collectors on the market, which usually collect dust by spraying, filtering, electrostatic adsorption, etc. However, the particles collected by common dust collectors will be mixed together or even agglomerated, which is not conducive to classification and processing. Summary of the invention

[0004] When the separation mechanism separates metal particles from dust particles, when dust of different sizes are mixed together, in order to separate the dust particles with larger sizes, at the same water flow rate, the metal particles with smaller sizes can also be washed away by the water flow, resulting in the separated dust being mixed with metal particles with smaller sizes, and the separation effect is poor.

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a dust removal device.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention includes:

[0007] A dust removal device, comprising:

[0008] a first dust removal mechanism, the first dust removal mechanism is provided with an air inlet and an air outlet, the first dust removal mechanism is provided with a cyclone dust removal structure, the first dust removal mechanism is at least used to separate dust in the air by centrifugal force, the first dust removal mechanism is provided with a first collecting chamber, the first collecting chamber is at least used to accommodate dust separated by the first dust removal mechanism; the first dust removal mechanism is provided with a first flushing component, the first flushing component is at least used to clean the dust in the first collecting chamber;

[0009] a second dust removal mechanism, the second dust removal mechanism being in communication with the air outlet, a filter assembly being arranged in the second dust removal mechanism, the filter assembly being at least used for filtering the air with dust coming out of the air outlet and obtaining clean air, the second dust removal mechanism being provided with a second flushing assembly, the second flushing assembly being at least used for flushing the filter assembly;

[0010] The separation mechanism comprises a vertical separation cylinder, a liquid outlet is arranged at the top of the separation cylinder; the first flushing assembly and the second flushing assembly are both connected to the separation cylinder, a third flushing assembly is arranged at the bottom of the separation cylinder, and the third flushing assembly is at least used to flush dust in the separation cylinder.

[0011] Preferably, the number of the first dust removal mechanisms is at least two, and several of the first dust removal mechanisms are arranged in sequence;

[0012] In any two adjacent first dust removal mechanisms, the air outlet of one first dust removal mechanism is connected to the air inlet of the other first dust removal mechanism, so that a plurality of the first dust removal mechanisms are connected in sequence and finally connected to the second dust removal mechanism;

[0013] Along with the flow direction of air, the particle size range of dust separated from the air by the first dust removal mechanisms gradually decreases.

[0014] Preferably, several first flushing components in several first dust removal mechanisms are respectively connected to the separation cylinder.

[0015] Preferably, a water collecting trough is provided on the outer wall of the separation cylinder, and the water collecting trough is used to receive the liquid flowing out of the liquid outlet.

[0016] Preferably, it further comprises a filtering mechanism, which is communicated with the liquid outlet, and is at least used for filtering the liquid flowing out of the liquid outlet to obtain clean water.

[0017] Preferably, it also includes a water storage mechanism, and the water storage mechanism is connected to the first flushing component, the second flushing component, the third flushing component and the filtering mechanism respectively.

[0018] Preferably, the first flushing component, the second flushing component and the third flushing component all perform flushing work by means of liquid, and the density of the liquid is less than the density of the metal particles.

[0019] Preferably, the first dust removal mechanism is connected to an induced draft fan, the induced draft fan is connected to the air inlet, and the induced draft fan is at least used to introduce external air containing dust into the air inlet.

[0020] Preferably, the first dust removal mechanism comprises a vertical cylinder, the air outlet is located at the top of the cylinder, the air inlet is located at the bottom of the cylinder, and cyclone blades are arranged in the cylinder.

[0021] Preferably, an inner cylinder is also provided in the cylinder body, a gap is left between the inner cylinder and the cylinder body, the top of the inner cylinder is located below the air outlet, the air inlet is connected with the inner cylinder, the cyclone blades are arranged in the inner cylinder, a second collecting chamber is provided at the bottom of the inner cylinder, the first flushing component passes through the second collecting chamber, and the first flushing component is at least used to clean dust in the second collecting chamber.

[0022] Compared with the state where dust of different sizes are mixed together, after the dust is differentiated by particle size, when the separation mechanism separates metal particles and dust particles of similar particle sizes, it can reduce the situation where the metal particles are carried away by the water flow at the same water flow rate, which is beneficial to improve the separation effect of metal particles and dust particles.

[0023] Compared with the prior art, the advantages of the present invention include:

[0024] (1) The present invention provides a dust removal device, wherein the first dust removal mechanism and the second dust removal mechanism are respectively used to filter out dust of different particle sizes in the air, and the dust can be distinguished by particle size. The separation mechanism can separate metal particles and dust particles at different flow rates according to the particle size of the dust, thereby reducing the situation where the water flow carries away the metal particles, which is beneficial to improving the separation effect of the metal particles and the dust particles, and is convenient for classification and processing;

[0025] (2) The present invention provides a dust removal device, in which dust of different particle sizes obtained by the first dust removal mechanism and the second dust removal mechanism can enter the separation mechanism respectively for separation, and the separation mechanism can process the dust from the first dust removal mechanism and the second dust removal mechanism in turn in an intermittent working mode, thereby improving the utilization rate of the separation mechanism and reducing the investment in equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is an overall schematic diagram of a dust removal device in Example 1 of the present invention;

[0028] Figure 2 Schematic cross-sectional view of the cylinder in Example 1 of the present invention;

[0029] Figure 3 Schematic cross-sectional view of the cylinder in Example 2 of the present invention;

[0030] Figure 4This is an overall schematic diagram of a dust removal device in Example 2 of the present invention;

[0031] Reference numerals:

[0032] 11. Cyclone dust collector; 12. Cylinder; 13. Air inlet; 14. Air outlet; 15. Cyclone blades; 16. First collecting chamber; 17. Draft fan; 18. First flushing pipe; 19. First discharge pipe; 21. Plastic sintered plate dust collector; 22. Plastic sintered plate filter element; 23. Nozzle; 24. Second flushing pipe; 25. Second discharge pipe; 26. Separation mechanism; 27. Separation cylinder; 28. Water collecting tank; 29. ​​Third flushing pipe; 31. Third discharge pipe; 32. Filter mechanism; 33. Water storage mechanism; 34. Inner cylinder; 35. Second collecting chamber. DETAILED DESCRIPTION

[0033] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principle, etc. in conjunction with the accompanying drawings and specific implementation cases.

[0034] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The embodiments of the present invention are intended to introduce and illustrate the structural composition of the dust removal device and the coordination relationship between the various components. Unless otherwise specified, the particle size, material and manufacturing process suitable for each component in the dust removal device in the embodiments of the present invention can be selected according to the specific situation and are not specifically limited or explained here.

[0036] On the contrary, the present invention covers any substitution, modification, equivalent method and scheme made on the spirit, principle and scope of the present invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. It is possible for a person skilled in the art to fully understand the present invention without the description of these details. In addition, when position terms such as both sides, outside, up and down are used, it should be understood that they are only used to facilitate understanding and description, considering that the structure may be facing other positions.

[0037] Example 1

[0038] See also Figure 1 and Figure 2A dust removal device includes a first dust removal mechanism, wherein the first dust removal mechanism is provided with an air inlet 13 and an air outlet 14. The first dust removal mechanism is provided with a cyclone dust removal structure, and the first dust removal mechanism is at least used to separate dust in the air by centrifugal force.

[0039] Preferably, the first dust removal mechanism includes a vertical cylinder 12 , the top of the cylinder 12 is connected to the air outlet 14 , the bottom of the cylinder 12 is connected to the air inlet 13 , and cyclone blades 15 are arranged in the cylinder 12 .

[0040] Specifically, the first dust removal mechanism is a cyclone dust collector 11, which includes a vertical cylinder 12, an air inlet 13 and an air outlet 14 respectively located at the bottom and top of the cylinder 12, and the cylinder 12 has a waist portion whose diameter increases with the air flow direction and a top portion whose diameter decreases. Rotating cyclone blades 15 are arranged on the inner wall of the cylinder 12, and when the airflow flows through the cyclone blades 15, the cyclone blades 15 can be driven to rotate. Under the action of the cyclone blades 15, the airflow forms a rotating cyclone in the cylinder 12. At this time, the dust in the airflow rubs against the inner wall of the cylinder 12 under the action of centrifugal force and the speed is reduced, and the particles with larger particle sizes are separated from the airflow and fall down, and the particles with smaller particle sizes are blown out of the air outlet 14 under the action of the airflow.

[0041] Preferably, the first dust removal mechanism is connected to an induced draft fan 17 , and the induced draft fan 17 is connected to the air inlet 13 , and the induced draft fan 17 is at least used to introduce external air containing dust into the air inlet 13 .

[0042] The induced draft fan 17 can blow outside air into the air inlet 13 at a certain pressure, so that the air containing dust flows in the cylinder 12; and, by controlling the blowing pressure of the induced draft fan 17, the flow rate of the airflow in the cylinder 12 can be adjusted, thereby controlling the speed of the cyclone in the cylinder 12, and further controlling the particle size range of the separated dust.

[0043] In this embodiment, the first dust removal mechanism is provided with a first collecting chamber 16, which is at least used to accommodate dust separated by the first dust removal mechanism; the first dust removal mechanism is provided with a first flushing component, which is at least used to clean the dust in the first collecting chamber 16.

[0044] Specifically, a first collecting chamber 16 is provided at the bottom of the cylinder 12 , and the first collecting chamber 16 is located below the air inlet 13 . The first flushing assembly includes a first flushing pipe 18 and a first discharge pipe 19 , and the first flushing pipe 18 and the first discharge pipe 19 both pass through and extend into the first collecting chamber 16 .

[0045] After the dust separated by the cyclone dust collector 11 falls into the first collecting chamber 16 , the first collecting chamber 16 can be cleaned through the first flushing pipe 18 , and the dust in the first collecting chamber 16 can be flushed out of the first collecting chamber 16 through the first discharge pipe 19 .

[0046] See also Figure 1 A dust removal device further includes a second dust removal mechanism, which is connected to the air outlet 14. A filter assembly is provided in the second dust removal mechanism, and the filter assembly is at least used to filter the air with dust coming out of the air outlet 14 and obtain clean air. The second dust removal mechanism is provided with a second flushing assembly, and the second flushing assembly is at least used to flush the filter assembly.

[0047] Specifically, the second dust removal mechanism is a plastic sintered plate dust collector 21, the filter assembly is a plastic sintered plate filter element 22, the air outlet 14 of the cyclone dust collector 11 is connected to a blower, and the plastic sintered plate dust collector 21 is connected to the air outlet 14 of the cyclone dust collector 11 through the blower.

[0048] Specifically, the second flushing assembly includes a second flushing pipe 24 and a second discharge pipe 25. The second flushing pipe 24 and the second discharge pipe 25 both pass through and extend into the plastic sintered plate dust collector 21. The plastic sintered plate dust collector 21 is equipped with several nozzles 23 for flushing the plastic sintered plate filter element 22. The several nozzles 23 are all connected to the second flushing pipe 24.

[0049] The plastic-sintered plate filter element 22 separates dust from the air and discharges clean air. The dust adheres to the plastic-sintered plate filter element 22. Water can be sprayed onto the surface of the plastic-sintered plate filter element 22 through the second flushing pipe 24 and the nozzle 23 to clean the plastic-sintered plate filter element 22. The sewage generated by flushing can be discharged through the second discharge pipe 25.

[0050] See also Figure 1 A dust removal device further includes a separation mechanism 26, which includes a vertical separation cylinder 27; a discharge port is provided at the bottom of the separation cylinder 27, and a liquid outlet is provided at the top. A third flushing component is provided at the bottom of the separation cylinder 27, and the third flushing component is at least used to flush the dust in the separation cylinder 27.

[0051] Preferably, a water collecting tank 28 is provided on the outer wall of the separation cylinder 27, and the water collecting tank 28 is used to receive the liquid flowing out from the liquid outlet.

[0052] Preferably, the first flushing component, the second flushing component and the third flushing component all perform flushing work by means of liquid, and the density of the liquid is less than the density of the metal particles.

[0053] Specifically, the water collecting tank 28 is fixedly installed on the outer wall of the separation cylinder 27 and surrounds the liquid outlet. The bottom surface of the water collecting tank 28 is located below the liquid outlet, and the top of the water collecting tank 28 is located above the liquid outlet. When liquid overflows from the liquid outlet, the water collecting tank 28 can receive the overflowed liquid to prevent the liquid from spilling, and the overflowed liquid can be temporarily stored in the water collecting tank 28.

[0054] Specifically, the third flushing assembly includes a third flushing pipe 29 and a third discharge pipe 31. The third flushing pipe 29 penetrates and extends into the bottom of the separation cylinder 27, and the third discharge pipe 31 penetrates and extends into the bottom of the water collection tank 28, so as to facilitate the discharge of the liquid in the water collection tank 28. Water can be flushed into the separation cylinder 27 through the third flushing pipe 29, and the speed of the water flow in the separation cylinder 27 can be controlled. Due to the different densities of metal and dust, the speed of the water flow in the separation cylinder 27 can be controlled to take away the dust particles and leave the metal particles, thereby achieving the separation of metal particles from dust particles. The metal particles can be discharged from the discharge port.

[0055] Specifically, in this embodiment, water is selected for flushing. In other embodiments, an acidic solution or an alkaline solution may be selected for flushing according to the properties of the dust.

[0056] In this embodiment, both the first flushing assembly and the second flushing assembly are connected to the separation cylinder 27 .

[0057] Specifically, the first discharge pipe and the second discharge pipe 25 are respectively connected to a valve, and then are connected to the bottom of the separation cylinder 27 through a pump.

[0058] In this embodiment, a dust removal device further includes a filtering mechanism 32, and the filtering mechanism 32 is connected to the liquid outlet. The filtering mechanism 32 is at least used to filter the liquid flowing out of the liquid outlet to obtain clean water.

[0059] Preferably, it further includes a water storage mechanism 33 , which is connected to the first flushing component, the second flushing component, the third flushing component, and the filtering mechanism 32 respectively.

[0060] Specifically, the filtering mechanism 32 includes a filter element, and the filtering level of the filter element can be selected according to the size of the dust particles.

[0061] Specifically, the first flushing pipe 18, the second flushing pipe 24, and the third flushing pipe 29 are all connected with valves, the first flushing pipe 18, the second flushing pipe 24, and the third flushing pipe 29 are all connected with the water storage mechanism 33 through a pump, and the filtering mechanism 32 is connected with the water storage mechanism 33 through a pipe.

[0062] The water storage mechanism 33 supplies water to the first flushing assembly, the second flushing assembly, and the third flushing assembly, and finally flows back to the water storage mechanism 33 after being filtered by the filtering mechanism 32. In this embodiment, the water used in the working process of a dust removal device can be recycled, which is conducive to reducing the amount of water used.

[0063] When a dust removal device is working, the induced draft fan 17 introduces dust-laden air into the cylinder 12, and large-sized particles in the dust are separated from the air and fall into the first collecting chamber 16; the air passes through the cylinder 12 and is discharged from the air outlet 14, and is blown into the plastic sintered plate dust collector 21 by the blower at a certain pressure for filtration to obtain clean air, and small-sized particles in the dust are filtered and enriched on the plastic sintered plate filter element 22.

[0064] When cleaning the dust in the first collecting chamber 16, the water storage mechanism 33 delivers water from the first flushing pipe 18 to the first collecting chamber 16 through the pump, and the dust in the first collecting chamber 16 is flushed out of the first collecting chamber 16 through the first discharge pipe 19 and pumped into the separation cylinder 27. The water storage mechanism 33 delivers water from the third flushing pipe 29 through the pump, and at the same time controls the water flow rate to separate the metal particles from the dust particles. The water flow in the separation cylinder 27 carries away the dust particles and flows out from the liquid outlet into the water collecting tank 28, and then is pumped into the filtering mechanism 32 for filtration through the pump, and the obtained clean water flows back to the water storage mechanism 33 through the pipeline.

[0065] When cleaning the dust in the plastic sintered plate dust collector 21, the water storage mechanism 33 delivers water from the second flushing pipe 24 to the nozzle 23 through the pump. The nozzle 23 can spray water on the surface of the plastic sintered plate filter element 22 to clean the plastic sintered plate filter element 22. The sewage generated by flushing is pumped into the separation cylinder 27 through the second discharge pipe 25. The water storage mechanism 33 delivers water from the third flushing pipe 29 through the pump, and at the same time controls the water flow rate to separate the metal particles from the dust particles. The water flow in the separation cylinder 27 carries away the dust particles and flows out from the liquid outlet into the water collecting tank 28, and then is pumped into the filtering mechanism 32 for filtration through the pump. The obtained clean water flows back to the water storage mechanism 33 through the pipeline.

[0066] When the separation mechanism 26 separates metal particles from dust particles, when dust of different sizes are mixed together, in order to separate the dust particles with larger sizes, at the same water flow rate, the metal particles with smaller sizes can also be washed away by the water flow, resulting in the separated dust being mixed with metal particles with smaller sizes, and the separation effect is poor.

[0067] In this embodiment, the work of cleaning the first collection chamber 16 and the work of cleaning the plastic sintering plate dust collector 21 are performed alternately. Compared with the state in which dusts of different particle sizes are mixed together, after the dust is distinguished by particle size, when the separation mechanism 26 separates metal particles and dust particles of similar particle sizes, it can reduce the situation in which the metal particles are carried away by the water flow at the same water flow rate, which is beneficial to improve the separation effect of metal particles and dust particles and facilitates classification and processing.

[0068] Example 2

[0069] See also Figure 1 and Figure 3The difference between this embodiment and embodiment 1 is that an inner cylinder 34 is further provided in the cylinder body 12, a gap is left between the inner cylinder 34 and the cylinder body 12, the top of the inner cylinder 34 is located below the air outlet 14, the air inlet 13 is connected to the inner cylinder 34, the cyclone blades 15 are provided in the inner cylinder 34, a second collecting chamber 35 is provided at the bottom of the inner cylinder 34, the first flushing component passes through the second collecting chamber 35, and the first flushing component is at least used to clean the dust in the second collecting chamber 35.

[0070] Specifically, the inner cylinder 34 is fixedly mounted on the inner wall of the cylinder body 12, the air inlet 13 is connected to the inner cylinder 34, a second collecting chamber 35 is provided at the bottom of the inner cylinder 34, the top of the inner cylinder 34 is located below the air outlet 14, a gap is left between the inner cylinder 34 and the cylinder body 12, and the first flushing pipe 18 and the first discharge pipe 19 are both connected and extend into the second collecting chamber 35.

[0071] In Example 1, for the dust that is blown upward by the airflow, as the airflow moves upward, the diameter of the cylinder 12 expands, the airflow velocity decreases, and the airflow velocity is insufficient to carry away some of the dust with larger particle sizes, and this part of the dust cannot fall, resulting in the accumulation of dust at a certain height of the cylinder 12, making it easy for the dust to adhere to the inner wall of the top of the inner cylinder 34. In this embodiment, when the airflow moves out of the top of the inner cylinder 34, due to the sudden increase in the inner diameter, the airflow velocity suddenly decreases, and the airflow is insufficient to drag this part of the dust with larger particle sizes. The dust falls and moves toward the inner wall of the cylinder 12 under the action of centrifugal force, and finally falls from the gap, thereby reducing the dust from adhering to the inner wall of the cylinder 12.

[0072] When the remaining dust passes through the top part with reduced diameter, the air flow speed increases, thus carrying away the remaining dust.

[0073] Example 3

[0074] See also Figure 1 and Figure 4 The difference between this embodiment and embodiment 1 is that: the number of first dust removal mechanisms is at least two, and several first dust removal mechanisms are arranged in sequence; in any two adjacent first dust removal mechanisms, the air outlet 14 of one first dust removal mechanism is connected with the air inlet 13 of the other first dust removal mechanism, so that several first dust removal mechanisms are connected in sequence and finally connected with the second dust removal mechanism; with the flow direction of air, the particle size range of dust separated from the air by the several first dust removal mechanisms gradually decreases.

[0075] Preferably, the first flushing components in the first dust removal mechanisms are respectively connected to the separation barrel 27.

[0076] Specifically, there are two cyclone dust collectors 11 , and the two air outlets 14 of the two cyclone dust collectors 11 and one of the two air inlets 13 and an air outlet 14 are connected through a blower, the remaining air inlet 13 is connected to the induced draft fan 17 , and the remaining air outlet 14 is connected to the plastic sintered plate dust collector 21 .

[0077] Specifically, along with the flow direction of the air, the air flow rate in the rear cyclone dust collector 11 is controlled by the blower to be smaller than the air flow rate in the front cyclone dust collector 11. In other embodiments, the rotational resistance of the two cyclone blades 15 can also be controlled so that the centrifugal force of the air in the rear cyclone dust collector 11 is smaller than the centrifugal force of the air in the front cyclone dust collector 11.

[0078] Specifically, the two cyclone dust collectors 11 are each provided with a first flushing pipe 18 and a first discharge pipe 19; the two first flushing pipes 18 are respectively connected with valves and are connected to the water storage mechanism 33 through a pump; the two first discharge pipes 19 are respectively connected with valves and are connected to the bottom of the separation cylinder 27 through a pump.

[0079] The two cyclone dust collectors 11 are used to separate dust particles of different particle sizes, and the dust particles of different particle sizes are further classified more finely, so as to further improve the effect of the subsequent separation mechanism 26 in separating metal particles from dust particles.

[0080] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A dust removal device, characterized in that: include: a first dust removal mechanism, the first dust removal mechanism being provided with an air inlet (13) and an air outlet (14), the first dust removal mechanism being provided with a cyclone dust removal structure, the first dust removal mechanism being at least used for separating dust in the air by centrifugal force, the first dust removal mechanism being provided with a first collecting chamber (16), the first collecting chamber (16) being at least used for accommodating dust separated by the first dust removal mechanism; the first dust removal mechanism being provided with a first flushing assembly, the first flushing assembly being at least used for cleaning dust in the first collecting chamber (16); a second dust removal mechanism, the second dust removal mechanism being in communication with the air outlet (14), the second dust removal mechanism being provided with a filter assembly, the filter assembly being at least used for filtering the air with dust coming out of the air outlet (14) and obtaining clean air, the second dust removal mechanism being provided with a second flushing assembly, the second flushing assembly being at least used for flushing the filter assembly; A separation mechanism (26), the separation mechanism (26) comprising a vertical separation cylinder (27), the top of the separation cylinder (27) being provided with a liquid outlet; the first flushing assembly and the second flushing assembly are both in communication with the separation cylinder (27), the bottom of the separation cylinder (27) being provided with a third flushing assembly, the third flushing assembly being at least used for flushing dust in the separation cylinder (27); The separation mechanism can process dust from the first dust removal mechanism and the second dust removal mechanism in sequence in an intermittent working mode, and the third flushing component can control the speed of the water flow in the separation cylinder (27).

2. A dust removal device according to claim 1, characterized in that: The number of the first dust removal mechanisms is at least two, and the first dust removal mechanisms are arranged in sequence; In any two adjacent first dust removal mechanisms, the air outlet (14) of one first dust removal mechanism is connected to the air inlet (13) of the other first dust removal mechanism, so that a plurality of the first dust removal mechanisms are connected in sequence and finally connected to the second dust removal mechanism; Along with the flow direction of air, the particle size range of dust separated from the air by the first dust removal mechanisms gradually decreases.

3. A dust removal device according to claim 2, characterized in that: A plurality of first flushing components in a plurality of the first dust removal mechanisms are respectively connected to the separation barrel (27).

4. A dust removal device according to claim 1, characterized in that: A water collecting groove (28) is provided on the outer wall of the separation cylinder (27), and the water collecting groove (28) is used to receive the liquid flowing out of the liquid outlet.

5. A dust removal device according to claim 1, characterized in that: It also comprises a filtering mechanism (32), wherein the filtering mechanism (32) is in communication with the liquid outlet, and the filtering mechanism (32) is at least used for filtering the liquid flowing out of the liquid outlet to obtain clean water.

6. A dust removal device according to claim 5, characterized in that: It also comprises a water storage mechanism (33), wherein the water storage mechanism (33) is respectively connected to the first flushing component, the second flushing component, the third flushing component and the filtering mechanism (32).

7. A dust removal device according to claim 1, characterized in that: The first flushing component, the second flushing component and the third flushing component all perform flushing work by means of liquid, and the density of the liquid is less than the density of the metal particles.

8. A dust removal device according to claim 1, characterized in that: The first dust removal mechanism is connected to an induced draft fan (17), the induced draft fan (17) is connected to the air inlet (13), and the induced draft fan (17) is at least used to introduce external air containing dust into the air inlet (13).

9. A dust removal device according to claim 1, characterized in that: The first dust removal mechanism comprises a vertical cylinder (12), the air outlet (14) is located at the top of the cylinder (12), the air inlet (13) is located at the bottom of the cylinder (12), and cyclone blades (15) are arranged inside the cylinder (12).

10. A dust removal device according to claim 9, characterized in that: An inner cylinder (34) is also arranged inside the cylinder body (12), a gap is left between the inner cylinder (34) and the cylinder body (12), the top of the inner cylinder (34) is located below the air outlet (14), the air inlet (13) is connected to the inner cylinder (34), the cyclone blades (15) are arranged inside the inner cylinder (34), a second collecting chamber (35) is arranged at the bottom of the inner cylinder (34), the first flushing component passes through the second collecting chamber (35), and the first flushing component is at least used to clean dust in the second collecting chamber (35).

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