A high-efficiency, low-resistance cartridge dust collector with pre-dust removal function

Abstract

The present invention discloses a high-efficiency and low-resistance filter cartridge dust collector with a pre-dust removal function, comprising a dust removal box, a filter cartridge dust removal device, a pulse spray device and a pre-dust removal device; the pre-dust removal device comprises a pre-dust removal shell, a dust sticking plate, a connecting shaft and a dust sticking liquid storage bucket; the dust sticking plate is rotatably connected to the pre-dust removal shell, the top of the dust sticking plate is fixed to one end of the connecting shaft, and the other end of the connecting shaft is fixedly connected to the dust sticking liquid storage bucket; a liquid storage tank is arranged at the center of the dust sticking plate, a connecting frame adapted to the dust sticking plate is fixed to the top wall of the dust sticking plate, an overflow tank is provided on the joint surface between the dust sticking plate and the connecting frame, an infusion circular hole is provided at the center of the connecting shaft, the top of the infusion circular hole is connected to the dust sticking liquid storage bucket, and the bottom is connected to the liquid storage tank. The present invention pre-dusts dust, reduces the dust removal pressure of the filter cartridge, increases the service life, saves costs, and can avoid secondary dusting during the cleaning process; the dust collection efficiency is high, and the dust removal effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dust prevention and control, and in particular to a high-efficiency low-resistance filter cartridge dust collector with a pre-dust removal function. Background Art

[0002] A large amount of dust is generated during the industrial and mining production process, which poses potential hazards to the surrounding environment and human body. Dust removal must be carried out to reduce the dust concentration in industrial and mining workplaces. Among them, dry dust removal is to discharge dust in a dry form. Because of its simple structure, low use requirements, and conducive to centralized dust treatment and comprehensive utilization, it is widely used in industrial and mining dust removal places such as mechanical casting and coal preparation.

[0003] For workplaces with high dust concentration, the filter cartridge collects dust too quickly and cleaning becomes very frequent, which shortens the service life of the filter cartridge and increases the operating cost of the dust removal device. In addition, the pulse jet cleaning method commonly used in existing dry dust removal may cause the cleaning airflow to stir up the deposited dust for the second time, making the cleaning effect worse. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a high-efficiency, low-resistance filter cartridge dust collector with a pre-dust removal function, which realizes multi-stage dust removal of dust particles, reduces the dust removal pressure of the filter cartridge, increases the service life, saves costs, and effectively avoids the phenomenon of secondary dust during the cleaning process; and has high dust collection efficiency, thereby improving the dust removal effect.

[0005] In order to achieve the above-mentioned object, the present invention provides a high-efficiency low-resistance filter cartridge dust collector with a pre-dust removal function, comprising a dust removal box, a filter cartridge dust removal device and a pulse jet device arranged in the dust removal box, and a pre-dust removal device;

[0006] The pre-dust removal device is arranged outside the dust removal box, and the pre-dust removal device includes a pre-dust removal shell, a dust sticking plate, a connecting shaft and a dust sticking liquid storage bucket;

[0007] The pre-dust removal housing is provided with an air inlet and an air outlet, and dust-containing gas from the outside enters the pre-dust removal housing through the air inlet. The air outlet is connected to an air inlet pipe, and the air inlet pipe penetrates into the dust removal box and is located on one side of the filter cartridge dust removal device;

[0008] The dust sticking plate is rotatably connected in the pre-dust removal shell, the top end of the dust sticking plate is fixed to one end of the connecting shaft, and the other end of the connecting shaft passes through the top wall of the pre-dust removal shell and is fixedly connected to the dust sticking liquid storage bucket; a liquid storage tank is arranged in the center of the dust sticking plate, a connecting frame adapted to the dust sticking plate is fixed to the top wall of the dust sticking plate, an overflow groove is provided on the joint surface of the dust sticking plate and the connecting frame, one end of the overflow groove is connected to the liquid storage tank, and the other end is closed; an infusion circular hole is provided in the center of the connecting shaft, the top end of the infusion circular hole is connected to the dust sticking liquid storage bucket, and the bottom end is connected to the liquid storage tank.

[0009] Furthermore, the dust-sticking plate is a cross-shaped plate body composed of two plate bodies fixed vertically and cross-fixed at the center, the connecting frame is adapted to the shape of the dust-sticking plate, the width of the connecting frame is greater than the thickness of the dust-sticking plate, and a first rotating ball is provided between the dust-sticking liquid storage hopper and the top wall of the pre-dust removal shell, and the dust-sticking liquid storage hopper is rotatably connected to the pre-dust removal shell through the first rotating ball.

[0010] Furthermore, the pre-dust removal housing further includes a dust-sticking liquid collection tank, a spiral agitator, a transmission motor, a first liquid level sensor, a second liquid level sensor and an electronic valve;

[0011] The sticky liquid collection tank is connected to the bottom of the pre-dust removal shell and is communicated with the inner cavity of the pre-dust removal shell; the spiral agitator rotates in the sticky liquid collection tank, one end of the spiral agitator passes through the sticky liquid collection tank and is coaxially fixed with the output shaft of the transmission motor, the first liquid level sensor and the second liquid level sensor are installed on the side wall of the sticky liquid collection tank, the first liquid level sensor is relatively located on the top of the second liquid level sensor, the first liquid level sensor and the second liquid level sensor are both electrically connected to the electronic valve, the bottom side wall of the sticky liquid collection tank is connected to a sticky liquid discharge pipe, and the electronic valve is installed on the sticky liquid discharge pipe.

[0012] Furthermore, the filter cartridge dust removal device comprises two rotatable filter cartridges, and the dust removal box is provided with a support plate for rotatably connecting the rotatable filter cartridges;

[0013] The rotatable filter cartridge includes an upper cover plate, a pleated filter material and a lower cover plate. The pleated filter material is inserted into a support plate. The top end of the pleated filter material is fixedly connected to the upper cover plate, and the bottom end is fixedly connected to the lower cover plate. The upper cover plate is located on the top wall of the support plate, and a second rotating ball is provided between the two. The upper cover plate is rotatably connected to the support plate via the second rotating ball.

[0014] Furthermore, a sealing protrusion is fixed on the peripheral edge of the bottom surface of the upper cover plate, and a sealing groove adapted to the sealing protrusion is opened on the support plate.

[0015] Furthermore, the pleated filter material is formed by a main pleated portion and an auxiliary pleated portion connected in a circular array, and the protruding length of the main pleated portion is greater than that of the auxiliary pleated portion; the air inlet pipe is located between the two rotatable filter cartridges, and a plurality of air outlet holes are provided on the outer peripheral surface of the air inlet pipe, and the air outlet direction of the air outlet holes is inclined along the chord direction of the rotatable filter cartridge.

[0016] Furthermore, it also includes an atomizing dust suppression device, which includes an induced draft fan, a mist condensing net, a sprayer and a water mist baffle; the mist condensing net is fixed in the dust removal box and is located at the bottom of the rotatable filter cartridge, and the sprayer and the induced draft fan are arranged outside the dust removal box and are respectively connected to the two ends of the mist condensing net.

[0017] Furthermore, the surface of the mist condensing net is woven by crisscrossing fine steel wires, and an air intake grille is provided at one end of the mist condensing net close to the sprayer; a filter is provided at one end of the mist condensing net close to the induced draft fan; and a water mist baffle is installed above the mist condensing net.

[0018] The present invention also provides a dust removal method, which uses the dust collector and specifically includes the following steps:

[0019] Step 1: Pre-dust removal stage: When the dust-laden airflow enters the pre-dust removal device, the dust-binding liquid in the dust-binding liquid storage hopper begins to be injected into the liquid storage tank of the dust-binding plate, and flows into the overflow tank after reaching a certain liquid level, and then the dust-binding liquid overflows and covers the surface of the dust-binding plate;

[0020] Subsequently, the dust-laden airflow impacts the dust-binding plate to rotate, thereby realizing the synchronous operation of dust collection on the dust-binding plate and renewal of the dust-binding liquid; in addition, the renewed dust-binding liquid flows into the dust-binding liquid collection tank and continuously renews the surface dust-binding liquid along with the spiral agitator; finally, the first liquid level sensor and the second liquid level sensor control the closing of the electronic valve to maintain the liquid level in the dust-binding liquid collection tank in a normal state; the dust-laden airflow treated by the pre-dust removal device flows into the air intake pipe;

[0021] Step 2: Dust removal stage: The dust-laden airflow is ejected from the air outlet of the air inlet pipe at a certain angle, and the airflow impacts the pleated filter material to make it rotate, so as to fully collect dust on the surface of the pleated filter material; in addition, the impact of the dust-laden airflow causes the dust particles in the airflow to directly hit the pleated filter material to achieve efficient dust collection;

[0022] Step 3: Cleaning stage: When cleaning the filter cartridge, the nozzle of the pulse jet device sprays high-pressure airflow to blow the dust particles attached to the pleated filter material down; the dust particles first migrate to the water mist baffle, and then slide down the water mist baffle into the atomizing dust suppression device;

[0023] The atomizing dust suppression device is started, and the sprayer spreads water mist onto the surface of the condensing net. The water mist condenses and absorbs water droplets on the surface of the condensing net. When dust particles fall into the surface of the condensing net, they will be absorbed by the water droplets on it, and finally fall out of the dust removal box under the action of their own weight.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) In order to solve the problem of high dust removal pressure and short service life of the filter cartridge, the present invention is equipped with a pre-dust removal device with a rotating plate dust collection method. Its unique rotating plate dust collection method effectively intercepts a large amount of large dust particles, reduces the dust concentration entering the filter cartridge dust collection chamber, reduces the frequency of filter cartridge cleaning, extends the service life of the filter cartridge, and greatly reduces the operating cost. In addition, the pre-dust removal device has a simple structure, is easy to maintain in the later stage, has a high cost performance, is simple to operate, and has a long service life.

[0026] (2) In order to solve the problem of uneven dust collection on the filter cartridge caused by the air intake and dust collection methods of the traditional filter cartridge dust collector, the present invention provides a rotatable filter cartridge so that the different surfaces of the filter cartridge collect dust alternately, thereby effectively improving the phenomenon of uneven dust collection on the circumferential surfaces during the dust collection process of the filter cartridge. In addition, the present invention adopts a direct-blowing air intake method, which utilizes the inertia of dust particles to accelerate the capture of dust particles by the filter material on the filter cartridge, thereby effectively improving the dust collection efficiency of the filter cartridge.

[0027] (3) In order to solve the problem of secondary dusting caused by pulse jet cleaning, the present invention provides an atomizing dust suppression device, which can quickly adsorb and fix the dust particles dropped during the cleaning stage by means of water mist and water droplets, effectively avoiding the problem of secondary dusting caused by the jet airflow stirring the deposited dust particles, thereby improving the dust removal effect of the dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of the pre-dust removal device of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the dust-binding component in the present invention;

[0031] Figure 4 A top view of the overflow trough for the dust sticking plate in the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the overflow trough for the dust sticking plate in the present invention;

[0033] Figure 6 It is a schematic diagram for reflecting the flow direction of the dust-binding liquid in the dust-binding liquid storage bucket in the present invention;

[0034] Figure 7 is a cross-sectional view of a rotatable filter cartridge in the present invention;

[0035] Figure 8 A top view of the pleated filter material of the present invention;

[0036] Fig. 9 It is a schematic diagram for reflecting the rotation state of the filter cartridge of the present invention;

[0037] Fig.10 It is a schematic diagram of the structure of the atomizing dust suppression device in the present invention.

[0038] In the figure: 1, induced draft fan; 2, pre-dust removal device; 20, pre-dust removal housing; 21, first liquid level sensor; 22, second liquid level sensor; 23, electronic valve; 24, dust-binding liquid discharge pipe; 25, transmission motor; 26, spiral agitator; 27, dust-binding liquid collection tank; 28, air inlet; 29, dust-binding plate; 291, overflow tank; 292, liquid storage tank; 293, connecting frame; 294, connecting shaft; 210, first Rolling ball; 211, dust-binding liquid storage bucket; 3, mist condensing net; 31, filter screen; 32, mist condensing net surface; 33, air intake grille; 4, sprayer; 5, water mist baffle; 6, pulse spray device; 7, air inlet pipe; 71, air outlet; 8, rotatable filter cartridge; 81, upper cover plate; 82, second rolling ball; 83, support plate; 831, sealing groove; 84, pleated filter material; 85, lower cover plate; 9, dust removal box. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below with reference to the accompanying drawings.

[0040] The invention discloses a high-efficiency low-resistance filter cartridge dust collector with a pre-dust removal function.

[0041] Reference Figure 1 and Figure 2 , a high-efficiency low-resistance cartridge dust collector with pre-dust removal function, comprising a dust removal box 9, a cartridge dust removal device, a pulse spray device 6, a pre-dust removal device 2 and an atomization dust suppression device;

[0042] The pre-dust removal device 2 is arranged outside the dust removal box 9, and the pre-dust removal device 2 performs preliminary processing on the dust before the dust enters the dust removal box 9. The pre-dust removal device 2 includes a pre-dust removal shell 20, a dust sticking component and a liquid discharge component; the pre-dust removal shell 20 is provided with an air inlet 28 and an air outlet, and the external dust-containing gas enters the pre-dust removal device 2 through the air inlet 28. The air inlet 28 adopts a gradually expanding tube design, which can not only achieve the purpose of airflow deceleration, increase the processing time of the airflow in the pre-dust removal device 2, and improve the pre-dust removal effect, but also the inlet slope design allows the dust sticking liquid that is thrown out to return to the dust sticking liquid collection tank 27, thereby realizing the recycling of the dust sticking liquid. The air outlet is connected to the air inlet pipe 7, and the air inlet pipe 7 penetrates into the dust removal box 9 and is located on one side of the filter cartridge dust removal device.

[0043] Reference Figures 2 to 6The dust sticking assembly includes a dust sticking plate 29, a dust sticking liquid storage bucket 211 and a connecting shaft 294; the dust sticking plate 29 is a cross-shaped plate body composed of two plate bodies fixed vertically and cross-centered, the dust sticking plate 29 is rotatably connected to the pre-dust removal shell 20, and the dust sticking liquid storage bucket 211 is rotatably installed on the top wall of the pre-dust removal shell 20. The dust sticking plate 29 and the dust sticking liquid storage bucket 211 are connected and fixed by a connecting shaft 294. A first rotating ball 210 is provided between the dust sticking liquid storage bucket 211 and the top wall of the pre-dust removal shell 20, and the dust sticking liquid storage bucket 211 is rotatably connected to the pre-dust removal shell 20 through the first rotating ball 210.

[0044] An inwardly concave prism-shaped liquid storage tank 292 is provided at the intersection center of the dust-sticking plate 29, and a cross-shaped connecting frame 293 that matches the shape of the dust-sticking plate 29 is fixed to the top end surface of the dust-sticking plate 29. The width of the connecting frame 293 is greater than the thickness of the dust-sticking plate 29. An overflow groove 291 is provided on the top wall of the dust-sticking plate 29, one end of the overflow groove 291 is connected to the liquid storage tank 292, and the other end is closed; an infusion circular hole is provided in the center of the connecting shaft 294, the top end of the infusion circular hole is connected to the dust-sticking liquid storage bucket 211, and the bottom end is connected to the liquid storage tank 292.

[0045] Among them, the thickness of the dust-sticking plate 29 is 1.5-2cm, which not only ensures the strength of the plate surface, but also is not too heavy to affect the rotation. The fixed connecting frame 293 above the dust-sticking plate 29 is 0.5-1cm away from the pre-dust removal chamber; this design not only ensures the effective coverage of the dust-sticking liquid, but also avoids excessive splashing of droplets. The width of the overflow groove 291 is 0.8-1cm, which helps to evenly distribute and update the dust-sticking liquid. The diameter of the conveying circular hole of the dust-sticking liquid storage bucket 211 is 0.5-1cm, which helps to control the flow of the dust-sticking liquid and ensure a stable supply of the dust-sticking liquid. The thrust of the airflow drives the dust-sticking plate 29 to rotate continuously, so that each plate surface can alternately stick to the dust, relieving the dust-sticking pressure of each plate surface. During the sticking period, the continuous overflow of the dust-sticking liquid to update the dust-sticking liquid on the plate surface helps to keep the dust-sticking liquid clean and effective, and also reduces the cleaning and maintenance work of the dust-sticking plate 29.

[0046] Reference Figure 2 , a dust-sticking liquid collection tank 27 is provided at the bottom of the pre-dust removal housing 20, and the inner cavity of the pre-dust removal housing 20 is connected to the dust-sticking liquid collection tank 27. The liquid discharge assembly includes a spiral stirrer 26, a transmission motor 25, a first liquid level sensor 21, a second liquid level sensor 22 and an electronic valve 23. The spiral stirrer 26 rotates in the middle of the dust-sticking liquid collection tank 27, and its stirring blade diameter is 70cm. One end of the spiral stirrer 26 passes through the dust-sticking liquid collection tank 27 and is coaxially fixed with the output shaft of the transmission motor 25; this design helps to evenly stir the dust-sticking liquid, prevent dust particles from depositing on the liquid surface of the dust-sticking liquid collection tank 27, and completely lose its dust-sticking ability on the liquid surface, causing the dust-laden airflow to escape from under the dust-sticking plate 29.

[0047] The first liquid level sensor 21 and the second liquid level sensor 22 are installed on the side wall of the sticky liquid collecting tank 27. The first liquid level sensor 21 is relatively located on the top of the second liquid level sensor 22. The first liquid level sensor 21 and the second liquid level sensor 22 are both electrically connected to the electronic valve 23. The bottom side wall of the sticky liquid collecting tank 27 is connected to the sticky liquid discharge pipe 24, and the electronic valve 23 is installed on the sticky liquid discharge pipe 24.

[0048] In this embodiment, the distance between the first liquid level sensor 21 and the dust sticking plate 29 is 5 cm, and the distance between the second liquid level sensor and the bottom of the dust sticking liquid collecting tank 27 is 30 cm. The design of the above sensors can monitor the liquid level of the dust sticking liquid in real time, and control the dust sticking liquid discharge port through the electronic valve 23 to maintain the normal liquid level in the dust sticking liquid collecting tank 27.

[0049] Reference Figure 7 The filter cartridge dust removal device includes two rotatable filter cartridges 8, and a support plate 83 for installing the rotatable filter cartridges 8 is provided in the dust removal box 9; the two rotatable filter cartridges 8 are rotatably connected to the support plate 83 in the dust removal box 9, and the air inlet pipe 7 is located between the two rotatable filter cartridges 8. A plurality of air outlet holes 71 are provided on the outer peripheral surface of the air inlet pipe 7, and the plurality of air outlet holes 71 are arranged in two rows at equal distances along the length direction of the air inlet pipe 7, and the two rows of air outlet holes 71 are symmetrically distributed on both sides of the axis of the air inlet pipe 7, and the air outlet direction is toward the adjacent rotatable filter cartridges 8.

[0050] Reference Figure 7 and Figure 8 Each rotatable filter cartridge 8 includes an upper cover plate 81, a pleated filter material 84 and a lower cover plate 85. The pleated filter material 84 is inserted into the support plate 83. The top end of the pleated filter material 84 is fixedly connected to the upper cover plate 81, and the bottom end is fixedly connected to the lower cover plate 85. The upper cover plate 81 is located on the top wall of the support plate 83. A second rotating ball 82 is provided between the upper cover plate 81 and the support plate 83. The upper cover plate 81 and the support plate 83 are rotatably connected to the support plate 83 through the second rotating ball 82. Then, the rotatable filter cartridge 8 can rotate on the support plate 83, so that the filter cartridge can rotate under the impact of the airflow, which increases the dynamic performance of the filter cartridge and helps to capture dust more evenly.

[0051] In order to prevent dust-laden airflow from being discharged from the gap of the second rotating ball 82, a sealing protrusion is fixed on the periphery of the bottom surface of the upper cover plate 81, and a sealing groove 831 adapted to the sealing protrusion is opened on the top wall of the support plate 83. The sealing groove 831 is filled with lubricating liquid, and the sealing protrusion is located in the sealing groove 831.

[0052] Reference Figure 8 and Fig. 9The pleated filter material 84 is formed by connecting the main pleated part and the auxiliary pleated part in a circular array. The protruding length of the main pleated part is greater than that of the auxiliary pleated part, so that it has a larger force-bearing area to withstand the thrust of the airflow, so that the rotatable filter cartridge 8 can rotate smoothly. When the dust-laden gas flows out from the air outlet holes arranged evenly on the air inlet pipe 7, its airflow will impact the pleated filter material 84 with a certain momentum, so that the rotatable filter cartridge 8 rotates at a certain speed; the rotational motion allows all sides of the filter cartridge to capture dust particles evenly, and the dust particles will be directly impacted by the pleated filter material 84 with the airflow and captured faster, thereby improving the dust removal efficiency.

[0053] In the present embodiment, a main pleat portion is provided every four auxiliary pleats; and the protruding length of the main pleat portion is twice that of the auxiliary pleat portion. This design not only increases the surface area of ​​the filter material and improves the dust collection efficiency, but also the presence of the main pleat portion allows the filter cartridge to have a larger force-bearing area to drive the rotatable filter cartridge 8 to rotate. This structural optimization helps to improve the dust removal performance and rotational power of the filter cartridge.

[0054] Reference Fig. 9 In addition, an angle is formed between the line connecting the center of the air inlet pipe 7 and the center of the rotatable filter cartridge 8 and the axis of the air outlet hole 71 of the air inlet pipe 7, and the angle is 20° in this embodiment; so that the air outlet direction of the air outlet hole 71 of the air inlet pipe 7 is tilted along the chord direction of the rotatable filter cartridge 8, so that the airflow is ejected at a deflection angle, forming an airflow with an oblique thrust, so that the airflow can impact the main pleated part and the auxiliary pleated part of the pleated filter material 84, and blow the filter cartridge more effectively to make it rotate.

[0055] The rotation speed of the filter cartridge is directly related to the momentum of the airflow; the airflow impacts the pleated filter material 84 with a certain momentum, causing the rotatable filter cartridge 8 to rotate, and this rotational motion helps to capture dust particles. By adjusting the speed of the intake airflow and the arrangement of the air outlet holes, the rotation speed of the filter cartridge can be controlled to achieve the best dust removal effect. Therefore, the design of the above-mentioned rotatable filter cartridge 8 achieves more efficient and uniform dust capture through its unique support structure, airflow dynamics design, and special pleated filter material 84 structure. This design not only improves the dust removal efficiency, but also extends the service life of the filter cartridge and reduces maintenance costs by reducing local wear of the filter cartridge.

[0056] Reference Fig.10 The pulse spray device 6 is arranged on the top of the rotatable filter cartridge 8, and is used for reverse blowing air into the rotatable filter cartridge 8 to clean dust. The atomization dust suppression device includes an induced draft fan 1, a mist condensing net 3, a sprayer 4 and a water mist baffle 5.

[0057] The mist condensing net 3 is fixed in the dust removal box 9 and is located at the bottom of the rotatable filter cartridge 8. The sprayer 4 and the induced draft fan 1 are arranged outside the dust removal box 9. The sprayer 4 is installed on the outer wall of the dust removal box 9, and the spray port of the sprayer 4 is connected to one end of the mist condensing net 3. The water mist particles generated by the sprayer 4 are between 1-10μm in size, which is similar to the size of dust particles, which helps to improve the capture efficiency. An air intake grille 33 is fixed to one end of the mist condensing net 3 close to the sprayer 4. The mist formed by the sprayer 4 migrates in the mist condensing net 3 toward the side away from the sprayer 4, and most of the mist will condense into fine water droplets on the mist condensing net 3. The water droplets will absorb the dust particles that fall during the cleaning stage and discharge them from the dust collector together.

[0058] The end of the mist condensing net 3 away from the sprayer 4 is connected to the air suction port of the induced draft fan 1. The induced draft fan 1 is used to extract the excess mist discharged by the sprayer 4. The end of the mist condensing net 3 close to the induced draft fan 1 is equipped with a filter 31 to prevent the dust-laden airflow from being directly sucked out, so as to ensure the efficiency and dust removal reliability of the dust collector. The mesh surface 32 of the mist condensing net is woven from interlaced fine steel wires, which are crisscrossed to facilitate the condensation of mist; a water mist baffle 5 is installed above the mist condensing net 3 to prevent water mist from entering the dust removal chamber and ensure the dryness and cleanliness of the dust removal chamber.

[0059] The atomizing dust suppression device achieves dust capture and sedimentation through the coordinated work of the induced draft fan 1, the mist condensing net 3, the sprayer 4 and the water mist baffle 5; the sprayer 4 generates micron-sized water mist particles, which are similar in size to the dust particles and can fully collide and condense; in addition, the water mist will condense into water droplets and adhere to the mist condensing net 3 during the migration process in the mist condensing net 3, and when the dust particles come into contact with the water droplets, they will be adsorbed by the water droplets. The atomizing dust suppression device achieves the effects of dust suppression, dust reduction and dust removal through the above two methods. The atomizing dust suppression device effectively captures and separates dust through the process of fine water mist particles generation, condensation and sedimentation, improves dust removal efficiency, and reduces the impact of dust on the environment and human health.

[0060] The present invention also discloses a dust removal method, which uses the above-mentioned dust collector and specifically comprises the following steps:

[0061] Step 1: Pre-dust removal stage: When the dust-laden airflow enters the pre-dust removal device 2, the dust-binding liquid in the dust-binding liquid storage hopper 211 begins to be injected into the liquid storage tank 292 of the dust-binding plate 29, and flows into the overflow tank 291 after reaching a certain liquid level, and then the dust-binding liquid overflows and covers the surface of the dust-binding plate 29;

[0062] Subsequently, the dust-laden airflow impacts the dust-binding plate 29 to rotate, thereby realizing the synchronous operation of dust collection and renewal of the dust-binding liquid on the dust-binding plate 29; in addition, the renewed dust-binding liquid flows into the dust-binding liquid collecting tank 27 and continuously renews the surface dust-binding liquid along with the spiral stirrer 26; finally, the first liquid level sensor 21 and the second liquid level sensor 22 control the electronic valve 23 to close, thereby maintaining the liquid level in the dust-binding liquid collecting tank 27 in a normal state; the dust-laden airflow processed by the pre-dust removal device 2 flows into the air inlet pipe 7;

[0063] Step 2: Dust removal stage: The dust-laden airflow is ejected from the air outlet 71 of the air inlet pipe 7 at a certain angle, and the airflow impacts the pleated filter material 84 to make it rotate, thereby achieving sufficient dust collection on the surface of the pleated filter material 84; in addition, the impact of the dust-laden airflow causes the dust particles in the airflow to directly hit the filter material to achieve efficient dust collection;

[0064] Step 3: Cleaning stage: When cleaning the filter cartridge dust removal device, the nozzle of the pulse spray device 6 sprays high-pressure airflow into the pleated filter material 84, blowing off the dust particles attached to the pleated filter material 84 and migrating downward; the dust particles first migrate to the water mist baffle 5, and due to the slope structure of the water mist baffle 5, the dust particles will slide into the atomized dust suppression device;

[0065] The atomizing dust suppression device is started, and the sprayer 4 spreads water mist on the surface of the mist condensing net 32, and the water mist condenses and absorbs water droplets on the surface of the mist condensing net 32; when dust particles fall into the surface of the mist condensing net 32, they are absorbed by the water droplets on it, and finally fall out of the dust removal box 9 under the action of their own weight. In addition, the water mist particles that have not condensed are similar in size to the dust particles, and can fully collide and condense, so that the water mist and dust mixed particles continue to grow, and finally settle due to the action of gravity and are discharged from the dust removal box 9.

[0066] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A high-efficiency, low-resistance cartridge dust collector with a pre-dust removal function, comprising a dust removal box (9) and a cartridge dust removal device and a pulse jet device (6) arranged in the dust removal box (9), characterized in that: It also includes a pre-dust removal device (2); The pre-dust removal device (2) is arranged outside the dust removal box (9), and the pre-dust removal device (2) comprises a pre-dust removal shell (20), a dust sticking plate (29), a connecting shaft (294) and a dust sticking liquid storage bucket (211); The pre-dust removal shell (20) is provided with an air inlet (28) and an air outlet, and external dust-containing gas enters the pre-dust removal shell (20) through the air inlet (28), and the air outlet is connected to an air inlet pipe (7), and the air inlet pipe (7) penetrates into the dust removal box (9) and is located on one side of the filter cartridge dust removal device; The dust sticking plate (29) is rotatably connected to the pre-dust removal shell (20), the top end of the dust sticking plate (29) is fixed to one end of the connecting shaft (294), and the other end of the connecting shaft (294) passes through the top wall of the pre-dust removal shell (20) and is fixedly connected to the dust sticking liquid storage bucket (211); a liquid storage tank (292) is arranged at the center of the dust sticking plate (29), a connecting frame (293) adapted to the dust sticking plate (29) is fixed to the top wall of the dust sticking plate (29), an overflow groove (291) is provided at the joint surface between the dust sticking plate (29) and the connecting frame (293), one end of the overflow groove (291) is connected to the liquid storage tank (292), and the other end is closed; an infusion circular hole is provided at the center of the connecting shaft (294), the top end of the infusion circular hole is connected to the dust sticking liquid storage bucket (211), and the bottom end is connected to the liquid storage tank (292); The filter cartridge dust removal device comprises two rotatable filter cartridges (8), and a support plate (83) for rotatably connecting the rotatable filter cartridges (8) is provided in the dust removal box (9); The rotatable filter cartridge (8) comprises an upper cover plate (81), a pleated filter material (84) and a lower cover plate (85); the pleated filter material (84) is inserted into the support plate (83); the top end of the pleated filter material (84) is fixedly connected to the upper cover plate (81), and the bottom end is fixedly connected to the lower cover plate (85); The pleated filter material (84) is formed by a main pleated portion and an auxiliary pleated portion connected in a circular array, wherein the protruding length of the main pleated portion is greater than that of the auxiliary pleated portion; the air inlet pipe (7) is located between the two rotatable filter cartridges (8), and a plurality of air outlet holes (71) are provided on the outer peripheral surface of the air inlet pipe (7), wherein the air outlet direction of the air outlet holes (71) is inclined along the chord direction of the rotatable filter cartridge (8).

2. According to claim 1, a high-efficiency, low-resistance cartridge dust collector with pre-dust removal function is characterized in that: The dust-adhesive plate (29) is a cross-shaped plate body composed of two plate bodies fixed vertically and cross-centered; the connecting frame (293) is adapted to the shape of the dust-adhesive plate (29); the width of the connecting frame (293) is greater than the thickness of the dust-adhesive plate (29); a first rotating ball (210) is provided between the dust-adhesive liquid storage bucket (211) and the top wall of the pre-dust removal shell (20); and the dust-adhesive liquid storage bucket (211) is rotatably connected to the pre-dust removal shell (20) via the first rotating ball (210).

3. The high-efficiency, low-resistance cartridge dust collector with pre-dust removal function according to claim 2, characterized in that: The pre-dust removal housing (20) further comprises a dust-binding liquid collection tank (27), a spiral stirrer (26), a transmission motor (25), a first liquid level sensor (21), a second liquid level sensor (22), and an electronic valve (23); The sticky liquid collection tank (27) is connected to the bottom of the pre-dust removal shell (20) and is in communication with the inner cavity of the pre-dust removal shell (20); the spiral stirrer (26) is rotatably connected to the sticky liquid collection tank (27); one end of the spiral stirrer (26) passes through the sticky liquid collection tank (27) and is coaxially fixed to the output shaft of the transmission motor (25); the first liquid level sensor (21) and the second liquid level sensor (22) are mounted on the side wall of the sticky liquid collection tank (27); the first liquid level sensor (21) is relatively located on the top of the second liquid level sensor (22); the first liquid level sensor (21) and the second liquid level sensor (22) are both electrically connected to the electronic valve (23); the bottom side wall of the sticky liquid collection tank (27) is in communication with a sticky liquid discharge pipe (24); the electronic valve (23) is mounted on the sticky liquid discharge pipe (24).

4. A high-efficiency, low-resistance cartridge dust collector with pre-dust removal function according to any one of claims 1 to 3, characterized in that: The upper cover plate (81) is located on the top wall of the support plate (83), and a second rotating ball (82) is provided between the two. The upper cover plate (81) is rotatably connected to the support plate (83) via the second rotating ball (82).

5. The high-efficiency, low-resistance cartridge dust collector with pre-dust removal function according to claim 4, characterized in that: A sealing protrusion is fixed on the circumferential edge of the bottom surface of the upper cover plate (81), and a sealing groove (831) adapted to the sealing protrusion is provided on the support plate (83).

6. The high-efficiency, low-resistance cartridge dust collector with pre-dust removal function according to claim 4, characterized in that: It also includes an atomizing dust suppression device, which includes an induced draft fan (1), a mist condensing net (3), a sprayer (4) and a water mist baffle (5); the mist condensing net (3) is fixed in the dust removal box (9) and is located at the bottom of the rotatable filter cartridge (8), and the sprayer (4) and the induced draft fan (1) are arranged outside the dust removal box (9) and are respectively connected to the two ends of the mist condensing net (3).

7. The high-efficiency, low-resistance cartridge dust collector with pre-dust removal function according to claim 6, characterized in that: The surface of the mist condensing net (32) is woven from fine steel wires that are crisscrossed. An air intake grille (33) is provided at one end of the mist condensing net (3) close to the sprayer (4); a filter screen (31) is provided at one end of the mist condensing net (3) close to the induced draft fan (1); and a water mist baffle (5) is installed above the mist condensing net (3).

8. A dust removal method, characterized in that: The dust collector according to claim 7 specifically comprises the following steps: Step 1: Pre-dust removal stage: When the dust-laden airflow enters the pre-dust removal device (2), the dust-binding liquid in the dust-binding liquid storage bucket (211) begins to be injected into the liquid storage tank (292) of the dust-binding plate (29), and after reaching a certain liquid level, flows into the overflow tank (291), and then the dust-binding liquid overflows and covers the surface of the dust-binding plate (29); Subsequently, the dust-laden airflow impacts the dust-binding plate (29) to rotate, thereby realizing the synchronous operation of dust collection by the dust-binding plate (29) and renewal of the dust-binding liquid; in addition, the renewed dust-binding liquid flows into the dust-binding liquid collecting tank (27) and continuously renews the surface dust-binding liquid along with the spiral stirrer (26); finally, the electronic valve (23) is closed by the first liquid level sensor (21) and the second liquid level sensor (22), thereby maintaining the liquid level in the dust-binding liquid collecting tank (27) in a normal state; the dust-laden airflow processed by the pre-dust removal device (2) flows into the air inlet pipe (7); Step 2: Dust removal stage: The dust-laden airflow is ejected from the air outlet (71) of the air inlet pipe (7) at a certain angle, and the airflow impacts the pleated filter material (84) to make it rotate, thereby achieving sufficient dust collection on the surface of the pleated filter material (84); in addition, the impact of the dust-laden airflow causes the dust particles in the airflow to directly impact the pleated filter material (84), thereby achieving efficient dust collection; Step 3: Cleaning stage: When cleaning the filter cartridge, the nozzle of the pulse spray device (6) sprays high-pressure airflow to blow the dust particles attached to the pleated filter material (84) down; the dust particles first migrate to the water mist baffle (5), and then slide down the water mist baffle (5) into the atomizing dust suppression device; The atomizing dust suppression device is activated, and the sprayer (4) spreads water mist onto the surface of the mist condensing net (32), and the water mist condenses and absorbs water droplets on the surface of the mist condensing net (32); when dust particles fall into the surface of the mist condensing net (32), they are absorbed by the water droplets thereon, and finally fall out of the dust removal box (9) under the action of their own weight.

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