Multifunctional electrostatic rectification pulp shooting machine nozzle and method

Abstract

The invention discloses a multifunctional electrostatic rectification pulp shooting machine spray head and a method. The multifunctional electrostatic rectification pulp shooting machine spray head comprises a spray head body formed by sequentially connecting a secondary pulp water filtering cavity, a mixing and stirring cavity, an electrostatic rectification cavity and a stamping and atomizing cavity. The head end of the second-stage seriflux filtering cavity is provided with a seriflux opening, a straight stamping opening is formed below the seriflux opening, a first-stage filtering net and a second-stage filtering net are fixedly arranged between the seriflux opening and the straight stamping opening and located in the second-stage seriflux filtering cavity, flow blocking structures are arranged at the tail ends of the first-stage filtering net and the second-stage filtering net, and a first-stage guide plate is obliquely arranged above the first-stage filtering net. A second-stage guide plate is obliquely arranged above the second-stage filter screen; the tail end of the secondary slurry water filtering cavity is fixedly connected with a mixing and stirring cavity, a material opening is formed in the top end of the mixing and stirring cavity in a penetrating mode, fan blades are installed in the mixing and stirring cavity through a supporting frame, and a spoiler is installed at the rear ends of the fan blades, so that the sufficient charging effect and the safety of equipment are guaranteed, and the atomization precision and bonding of slurry water are improved.

Description

Technical Field

[0001] The invention relates to the technical field of spraying devices, and in particular to a multifunctional electrostatic rectifier spraying machine nozzle and a method. Background Art

[0002] The slurry water is sprayed on the production building to form a protective layer on the production building, thereby improving adhesion, enhancing structural strength, improving construction efficiency and being effectively applicable to construction in special environments. Traditional slurry spraying machines have been widely used in building maintenance, underground engineering and repair engineering wall surfaces, but traditional equipment will have problems such as uneven distribution of sprayed materials and low spraying efficiency during operation. Therefore, electrostatic atomization rectification design of the nozzle structure is an important way to optimize its performance;

[0003] The internal structure of the existing electrostatic spray device can refer to an electrostatic rotary disc spray device with a publication number of CN110344852A, which mainly includes a driving turbine assembly, a driving turbine part, a motor assembly, an atomizing disc and a driving turbine gear. By driving a plurality of first turbine speed air pressure holes and a plurality of second turbine speed air pressure holes, the speed and torque of the driving turbine part are increased, so that the paint atomization is finer. Although the slurry water adhesion rate and resource consumption rate are improved, the contact uniformity between the paint and the discharge unit is poor, and the electrostatic charge of the paint particles needs to be further improved.

[0004] In order to increase the electrostatic charge of paint particles, an electrostatic atomization nozzle with announcement number CN104826755A is provided. The main structure includes a shell, a needle-shaped electrode, an auxiliary sheet, a spring, a dynamic sealing ring, and a high-voltage electrostatic module. The rib-type flow channel rotates to allow the liquid to enter the electrostatic atomization nozzle along the circumferential direction, and the conical electrode is used to make the slurry mist for long-distance transportation. Although the electrostatic charge is improved, the droplets ejected from the nozzle outlet are easily adhered to the electrode ring and cause high-voltage breakdown, so the charging effect and safety are difficult to guarantee.

[0005] At present, the improvement of electrostatic spraying equipment focuses on the electrostatic charge of slurry mist and the optimization and improvement of spraying efficiency. The improved spraying equipment still has problems such as difficult to control the output flow rate of the sprayed droplets, insufficient mixing of slurry and water, and inability to ensure the atomization accuracy and adhesion rate of the slurry. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a multifunctional electrostatic rectifier spraying machine nozzle, which improves the slurry water adhesion rate through the combined effects of filtration, stirring and rectification atomization of the slurry water, and achieves a certain controllability of the slurry water output flow rate.

[0007] In order to achieve the above-mentioned purpose, a multifunctional electrostatic rectifier spraying machine nozzle is provided, comprising a nozzle composed of a secondary slurry water filtering cavity, a mixing and stirring cavity, an electrostatic rectifier cavity and a stamping atomization cavity connected in sequence;

[0008] A slurry water inlet is arranged at the head end of the secondary slurry water filter cavity, a vertical punching port is arranged below the slurry water inlet, a primary filter screen and a secondary filter screen are fixedly arranged between the slurry water inlet and the vertical punching port and in the secondary slurry water filter cavity, a flow blocking structure is arranged at the ends of the primary filter screen and the secondary filter screen, a primary guide plate is arranged obliquely above the primary filter screen, and a secondary guide plate is arranged obliquely above the secondary filter screen;

[0009] The end of the secondary slurry water filtering cavity is fixedly connected to the mixing and stirring cavity, the top of the mixing and stirring cavity is penetrated by a material port, a fan blade is installed in the mixing and stirring cavity through a support frame, and a baffle is installed at the rear end of the fan blade;

[0010] The end of the mixing and stirring chamber is fixedly connected to the electrostatic rectification chamber, and a high-voltage electrostatic device is installed between the electrostatic rectification chamber and the secondary slurry water filtering chamber;

[0011] The end of the electrostatic rectification cavity is sleeved with the stamping atomization cavity.

[0012] It is further configured that the first-level guide plate is obliquely arranged in the second-level slurry water filter cavity, the first-level guide plate is installed on the nozzle through the side frame, and the length of the first-level guide plate occupies 1 / 2 of the filter cavity.

[0013] It is further configured that the secondary guide plate is obliquely arranged in the secondary slurry water filter cavity, and the length of the secondary guide plate occupies 2 / 3 of the filter cavity.

[0014] It is further configured that the first-level filter screen is streamlined, with a first-level flow-blocking structure arranged at the end, and the second-level filter screen structure presents a streamlined arc inclined structure, with a second-level flow-blocking structure arranged at the end.

[0015] It is further configured that the fan blade structure is installed and fixed on the tapered roller bearing of the support frame by a rotating buckle to achieve rotational movement; the tapered roller bearing is fixed to the support frame by a positioning screw.

[0016] It is further configured that the insulating rubber material is in a ring shape, and the electrostatic emission device is nested with the spray gun housing through a positioning sheet.

[0017] It is further configured that an insulating layer made of insulating rubber material is provided inside the insulating rubber material, and the insulating layer divides the inside of the shell into a non-connected mixing and stirring space and an ionization space.

[0018] It is further configured that the secondary slurry filtration chamber, the mixing and stirring chamber, the electrostatic rectification chamber and the stamping atomization chamber are connected through a threaded structure, and a sealing ring is provided on the threaded structure.

[0019] It is further configured that the nozzle is connected to the support frame through a slurry water interface, a direction handle is arranged at the rear of the support frame, a control box is arranged at the front end of the direction handle, and universal wheels and nylon wheels are arranged below the support frame.

[0020] The invention discloses a working method of a multifunctional electrostatic rectifier spraying machine nozzle, comprising the following steps:

[0021] The slurry and the punching gas flow into the secondary slurry filter chamber through the slurry port and the straight punching port respectively;

[0022] After the slurry flows in from the slurry water inlet, it flows into the primary filter screen through the first guide plate in turn, and then flows along the channel to the position of the primary flow blocking structure. The slurry continues to flow from the flow blocking structure of the primary filter screen to the secondary guide plate, and then flows to the vertical punching cavity below through the flow blocking structure of the secondary guide plate;

[0023] Flow into the mixing and stirring chamber and mix through the fan blades;

[0024] The mixed liquid flows into the electrostatic rectifier cavity, and the insulating rubber material insulating layer is used to divide the interior of the shell into unconnected mixing and stirring space and ionization space, so that the surface of the liquid droplets presents anode and the wall presents cathode, which attract each other. After flowing out of the stamping atomization cavity, the spray material can be more firmly adsorbed on the wall surface.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention sets a filter punching structure, mainly using a stepped flow guide structure at the end with a 15° angle, the length of which accounts for 1 / 2 and 2 / 3 of the filter space respectively, and a filter screen with an arc texture design at an inclination angle of 20°, the filter screen gaps of which are 2mm and 1.2mm respectively, and the mutual cooperation with the end flow-blocking structure realizes multiple filtering and flow diversion of the spraying material, making the spraying material more delicate, and uses a nested high-voltage electrostatic device and an insulating rubber material insulating layer to divide the interior of the shell into unconnected mixing and stirring space and ionization space; the mutual attraction between the liquid droplet surface (presenting as an anode) and the wall surface (presenting as a cathode) is achieved, and the spraying material can be more firmly adsorbed on the wall surface, ensuring sufficient charging effect and equipment safety, and ensuring the stability of the output flow through multi-stage filtration, so that the droplets can be charged more evenly, and the atomization accuracy and adhesion rate of the slurry water are improved under the combined action of the filter punching structure and the nested high-voltage electrostatic device.

[0027] 2. The present invention sets a multi-raw material mixing and stirring structure, and mainly uses the fan blades installed on the tapered roller bearing fixed on the support frame to realize the rotational stirring movement, so that the filtered slurry water and the dry accelerator and stabilizer are more fully mixed together, the spraying material is more delicate, and the raw materials are more fully combined.

[0028] 3. The present invention arranges a ducted stamping atomization structure behind the electrostatic emission chamber. The ducted stamping atomization structure is formed by combining the outer wall of the internal nozzle and the inner wall of the stamping atomization structure. The structure is streamlined as a whole and is connected by a threaded structure. A sealing ring is provided on the outside, which improves the atomization efficiency and ensures the sealing of the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which constitute a part of the specification, are included to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are included to explain the present invention.

[0030] Figure 1 This is a schematic diagram of the whole machine assembly of the present invention

[0031] Figure 2 A partial schematic diagram of the main cavity structure of the nozzle of the present invention

[0032] Figure 3 Schematic diagram of the external interface of the nozzle of the present invention

[0033] Figure 4 The schematic cross-sectional view of the overall appearance structure of the nozzle of the present invention is

[0034] Figure 5 Schematic diagram of the cross-sectional structure of the mixing and stirring chamber and the electrostatic rectification chamber of the present invention

[0035] Figure 6 The schematic diagram of the filter screen structure of the secondary filter cavity of the present invention is

[0036] Figure 7 This is a schematic cross-sectional view of the punching atomization chamber structure of the present invention.

[0037] Figure 8 Schematic diagram of the fan blade of the present invention

[0038] In the figure: 1. direction handle; 2. control box; 3. motor; 4. connector; 5. support frame; 6. universal wheel; 7. feed funnel; 8. stamping pot; 9. agitator; 10. stamping interface; 11. slurry interface; 12. nylon wheel; 13. tapered roller bearing; 14. nozzle; 14-1. secondary slurry filter cavity; 14-2. mixing cavity; 14-3. electrostatic rectifier cavity; 14-4. stamping atomization cavity; 15. material box; 16. high pressure interface; 17. material port; 18. slurry port; 19. primary discharge port; 20. secondary discharge port Material inlet; 21. Straight punching port; 22. Ring punching port; 23. Primary guide plate; 24. Primary filter; 25. Primary flow resistance structure; 26. Secondary guide plate; 27. Secondary filter; 28. Secondary flow resistance structure; 29. ​​Mixing punching channel; 30. Tapered roller bearing; 31. Fan blade; 32. High-voltage electrostatic device; 33. Support frame; 34. Baffle; 35. Internal duct; 36. Internal nozzle; 37. Fan-shaped nozzle; 38. Stirring port; 39. Internal thread interface; 40. External thread interface; 41. Internal thread buckle; 42. External duct. DETAILED DESCRIPTION

[0039] The present invention is described in detail below in conjunction with specific implementation modes.

[0040] Example 1

[0041] like Figure 1 As shown, a multifunctional electrostatic rectifier spraying machine nozzle is provided, including a nozzle 14 which is composed of a secondary slurry water filtering chamber 14-1, a mixing and stirring chamber 14-2, an electrostatic rectifier chamber 14-3 and a stamping atomization chamber 14-4 connected in sequence; a slurry water inlet 18 is arranged at the head end of the secondary slurry water filtering chamber 14-1, a straight stamping port 21 is arranged below the slurry water inlet 18, a primary filter screen 24 and a secondary filter screen 24 are fixedly arranged between the slurry water inlet 18 and the straight stamping port 21 and in the secondary slurry water filtering chamber 14-1. The filter screen 27, the first filter screen 24 and the second filter screen 27 are provided with a flow blocking structure at the end, the first guide plate 23 is obliquely provided above the first filter screen 24, and the second guide plate 26 is obliquely provided above the second filter screen 27. The first guide plate 23 and the second guide plate 26 are obliquely provided above the second filter screen 27. The liquid flowing in from above can be guided by the inclined first guide plate 23 and the second guide plate 2, so as to ensure that the liquid flows to the first filter screen 24 and the second filter screen 27 in sequence, thereby ensuring that the speed of the liquid flowing into the first filter screen 24 and the second filter screen 27 is similar to ensure that the liquid is fully filtered;

[0042] The end of the secondary slurry filtering chamber 14-1 is fixedly connected to the mixing and stirring chamber 14-2. The material port 17 is set through the top of the mixing and stirring chamber 14-2. The fan blade 31 is installed in the mixing and stirring chamber 14-2 through the support frame 5. The rear end of the fan blade 31 is installed with a baffle 34. The baffle 34 is used for reflux stirring. The fan blade 31 realizes a rotating stirring motion, so that the filtered slurry and the dry quick-setting agent and stabilizer are more fully mixed together, the spraying material is more delicate, and the raw materials are more fully combined;

[0043] The end of the mixing and stirring chamber 14-2 is fixedly connected to the electrostatic rectification chamber 14-3, and a high-voltage electrostatic device 32 is installed between the electrostatic rectification chamber 14-3 and the secondary slurry filtration chamber 14-1, wherein the high-voltage electrostatic device 32 is installed on both sides of the spray gun in an embracing structure and is nested with the spray gun shell by positioning sheets, and an insulating layer of insulating rubber material is used to divide the interior of the shell into non-connected mixing and stirring space and ionization space.

[0044] The end of the electrostatic rectifier cavity 14-3 is sleeved with the stamping atomization cavity 14-4, and the stamping atomization cavity 14-4 mainly includes an annular stamping port 22, an internal nozzle 36, a fan-shaped nozzle 37, an external thread interface 40, an internal thread buckle 41 and an external duct 42. The external thread interface 40 and the internal thread interface 39 are connected to each other, and an annular stamping port 22 is arranged in front of them; the stamping atomization gas enters the duct structure through the annular stamping port 22, and this structure is mainly composed of an external duct 42 and an internal nozzle 36. The internal nozzle 36 is connected to the internal duct 35. An atomization zone is arranged in front of the internal nozzle 36, and a fan-shaped nozzle 37 connected by threads is arranged in front of the atomization zone. The fan-shaped nozzle 37 is formed by intersecting a wedge-shaped and unconnected conical spray hole as a whole. The nozzle is connected to the nozzle through a threaded structure, and the droplets sprayed through the atomization zone are guided by the fan-shaped nozzle to ensure that the sprayed droplets are limited to a certain range.

[0045] The first-level guide plate 23 is tiltedly arranged in the second-level slurry water filtering cavity 14-1. The first-level guide plate 23 is installed on the nozzle 14 through the side frame. The length of the first-level guide plate 23 accounts for 1 / 2 of the second-level slurry water filtering cavity 14-1. The second-level guide plate 26 is tiltedly arranged in the second-level slurry water filtering cavity 14-1. The length of the second-level guide plate 26 accounts for 2 / 3 of the filtering space, so that the first-level guide plate 23 and the second-level guide plate 26 are arranged in a stepped manner from top to bottom, thereby guiding the slurry above the first-level guide plate 23 and the second-level guide plate 26 to flow to the starting ends of the first-level filter screen 24 and the second-level filter screen 27, ensuring multiple filtration and diversion of the spraying material, making the spraying material more delicate.

[0046] The primary filter 24 is streamlined, with a primary flow-blocking structure 25 at the end. The secondary filter 27 has a streamlined arc inclined structure, with a secondary flow-blocking structure 28 at the end. The streamlined arc inclined structure can ensure the fluidity of the liquid on the secondary filter 27.

[0047] The fan blade structure is fixed on the tapered roller bearing 13 of the support frame 5 by a rotating buckle to realize rotational movement; the tapered roller bearing 13 is fixed to the support frame 5 by a positioning screw, and a support frame 33 is provided in front of the stirring port 38, on which a tapered roller bearing 30 and a fan blade 31 are equipped, and a baffle 34 is provided in front for reflux stirring.

[0048] The insulating rubber material is in a ring shape, and the electrostatic emission device is nested with the spray gun housing through a positioning sheet. The electrostatic rectifier cavity 14-3 is provided with a high-voltage interface 16 and a high-voltage electrostatic device 32, wherein the high-voltage electrostatic device 32 is installed on the spray gun in an embracing structure and is nested with the spray gun housing on both sides using positioning sheets, and is provided with an insulating rubber material insulating layer to divide the interior of the housing into non-connected mixing and stirring space and ionization space.

[0049] The insulating layer divides the interior of the shell into unconnected mixing and stirring space and ionization space. The specific electrostatic rectifier cavity 14-3 is provided with a high-voltage interface 16 and a high-voltage electrostatic device 32, wherein the high-voltage electrostatic device 32 is installed in an embracing structure on both sides of the spray gun and is nested with the spray gun shell by means of positioning sheets, and is provided with an insulating layer of insulating rubber material to divide the interior of the shell into unconnected mixing and stirring space and ionization space.

[0050] The secondary slurry filtering chamber 14-1, the mixing and stirring chamber 14-2, the electrostatic rectification chamber 14-3 and the stamping atomization chamber 14-4 are connected by a threaded structure, and a sealing ring is provided on the threaded structure to improve the atomization efficiency and ensure the sealing of the spray gun.

[0051] The nozzle 14 is connected to the support frame 5 through the slurry water interface 11, a direction handle 1 is arranged at the rear of the support frame 5, a control box 2 is arranged at the front end of the direction handle 1, a universal wheel 6 and a nylon wheel 12 are arranged at the bottom of the support frame 5, a direction handle 1 is arranged at the rear of the support frame 5, and the control box 2 is arranged between the direction handle 1 and the connector 4; a motor 3 is arranged above the connector 4; a universal wheel 6 and a nylon wheel 12 are arranged at the bottom, and the nylon wheel 12 is supported for rotation by a roller bearing 13, an agitator 9 is arranged at the front of the equipment, and a hopper 7 is arranged above it, a material box 15 is arranged on the left side of the agitator 9, a stamping pipe 8 is arranged on the right side, and a slurry water interface 11 is arranged at the bottom; a stamping interface 10 is arranged in front of the stamping jar 8; the spraying machine nozzle 4 is below the support frame 5.

[0052] Example 2

[0053] This embodiment discloses a working method of the multifunctional electrostatic rectifier spraying machine nozzle based on the embodiment 1, comprising the following steps:

[0054] Before the spraying machine nozzle sprays, the two liquids need to be mixed. Therefore, two interconnected areas are set in the secondary slurry water filter chamber 14-1. The slurry passes through the feed leak 7, the stamping interface 10 and the slurry water interface 11, and then flows into the slurry water port 18 and the straight stamping port 21. Then the slurry flows into the secondary slurry water filter chamber 14-1 through the slurry water port 18 and the straight stamping port 21 respectively, and the slurry is injected through the upper and lower layers, and the upper layer slurry is fully filtered.

[0055] The size of sand particles in the shotcrete machine is generally between 0.15-2.5mm, so the gap of the primary filter 24 is set to 2mm, and a secondary guide plate 26 is set below the primary flow-blocking structure 25. It adopts an inclined structure and the length of the structure accounts for 2 / 3 of the secondary filtration system 14-1. A secondary filter 27 is set below it, and the gap of the filter is set to 1.2mm. A secondary flow-blocking structure 28 is set in front of it; a mixing punching channel 29 is set below the secondary filter 27, which cooperates with the vertical punching port 21 to send the slurry water into the multi-raw material mixing system System 14-2, after the slurry flows in from the slurry water inlet 18, it flows through the primary guide plate 23 to the primary filter screen 24 in turn, and then flows along the channel to the position of the primary flow resistance structure 25. The slurry continues to be decelerated from the primary flow resistance structure 25 of the primary filter screen 24, flows to the secondary guide plate 26, and then flows to the secondary filter screen 27 below. The secondary filter screen 27 further decelerates the slurry through the secondary flow resistance structure 28, and the upper slurry can flow more slowly to the liquid flowing into the vertical stamping port 21 below, so that the slurry is mixed more fully.

[0056] The mixed slurry flows into the mixing and stirring chamber 14-2 and is mixed by the fan blades 31. The spiral fan blades 31 fixed on the tapered roller bearings of the support frame 33 are used to realize the rotating stirring motion, so that the filtered slurry water is more fully mixed with the dry quick-setting agent and stabilizer, the spraying material is more delicate, and the raw materials are more fully combined;

[0057] The mixed liquid flows into the electrostatic rectifier cavity 14-3, and the electrostatic rectifier cavity 14-3 is provided with a high-voltage interface 16 and a high-voltage electrostatic device 32, wherein the high-voltage electrostatic device 32 is installed on the spray gun in an embracing structure on both sides and is nested with the spray gun shell by positioning sheets, and the inside of the shell is divided into a non-connected mixing and stirring space and an ionization space by an insulating rubber material insulating layer, so that the (liquid drop surface presents as an anode) and the wall surface (presents as a cathode) attract each other, and the high-voltage electrostatic device contains a high-voltage transformer, a rectifier circuit, a filter and a voltage regulator, and a discharge electrode. After the high-voltage interface 17 is connected to the high-voltage electricity, an electrostatic field is generated by the high-voltage electrostatic device through the discharge electrode of the high-voltage electrostatic device, wherein the high-voltage transformer, the rectifier circuit, the filter and the voltage regulator, and the discharge electrode are all existing circuit structures, and the specific voltage doubling rectifier circuit: the electrostatic rectifier generator first boosts the input low-voltage alternating current through a high-voltage transformer. The function of the transformer is to increase the input voltage to a higher level; the rectifier circuit: the boosted alternating current is rectified by the rectifier circuit. The rectifier circuit uses the unidirectional conductivity of the diode to convert the alternating current into direct current. Voltage doubler rectifier circuit: To further increase the voltage, the electrostatic rectifier generator usually adopts a multi-stage voltage doubler rectifier circuit. This circuit gradually doubles the voltage of the input AC power through a combination of multiple capacitors and diodes, and finally outputs high-voltage DC power. Filtering and voltage stabilization: The rectified DC power usually has a pulsating component, so it needs to be smoothed by a filter capacitor to obtain a stable DC voltage. Discharge electrode: Finally, the high-voltage DC power generates an electrostatic field through the discharge electrode. The function of the discharge electrode is to convert electrical energy into an electrostatic field, so that the cations are adsorbed to the surface of the droplet (charged).

[0058] After flowing out of the stamping atomization cavity 14 - 4 , the spraying material can be more firmly adsorbed on the wall surface.

[0059] The embodiments are preferred implementations of the present invention, but the present invention is not limited to the above implementations. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention belong to the protection scope of the present invention.

Claims

1. A multifunctional electrostatic rectifier spraying machine nozzle, characterized in that: The nozzle comprises a secondary slurry filtering chamber, a mixing and stirring chamber, an electrostatic rectification chamber and a stamping atomization chamber which are connected in sequence; A slurry water inlet is arranged at the head end of the secondary slurry water filter cavity, a vertical punching port is arranged below the slurry water inlet, a primary filter screen and a secondary filter screen are fixedly arranged between the slurry water inlet and the vertical punching port and in the secondary slurry water filter cavity, a flow blocking structure is arranged at the ends of the primary filter screen and the secondary filter screen, a primary guide plate is arranged obliquely above the primary filter screen, and a secondary guide plate is arranged obliquely above the secondary filter screen; The end of the secondary slurry water filtering cavity is fixedly connected to the mixing and stirring cavity, the top of the mixing and stirring cavity is penetrated by a material port, a fan blade is installed in the mixing and stirring cavity through a support frame, and a baffle is installed at the rear end of the fan blade; The end of the mixing and stirring chamber is fixedly connected to the electrostatic rectification chamber, and a high-voltage electrostatic device is installed between the electrostatic rectification chamber and the secondary slurry water filtering chamber; The end of the electrostatic rectification cavity is sleeved with the stamping atomization cavity.

2. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 1 is characterized in that: The first-level guide plate is tiltedly arranged in the second-level slurry water filtering cavity, and is installed on the nozzle through the side frame. The length of the first-level guide plate occupies 1 / 2 of the second-level slurry water filtering cavity.

3. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 1 is characterized in that: The secondary guide plate is obliquely arranged in the secondary slurry water filter cavity, and the length of the secondary guide plate occupies 2 / 3 of the filter space.

4. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 1 is characterized in that: The first-level filter is streamlined, with a first-level flow-blocking structure arranged at the end; the second-level filter is a streamlined arc inclined structure, with a second-level flow-blocking structure arranged at the end.

5. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 1 is characterized in that: The fan blade structure is installed and fixed on the tapered roller bearing of the support frame by means of a rotating buckle to realize rotational movement; the tapered roller bearing is fixed on the support frame by means of a positioning screw.

6. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 1, characterized in that: The insulating rubber material is in a ring shape, and the electrostatic emission device is nested with the spray gun housing through a positioning sheet.

7. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 6, characterized in that: An insulating layer made of insulating rubber material is arranged inside the insulating rubber material, and the insulating layer divides the inside of the shell into a non-connected mixing and stirring space and an ionization space.

8. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 1, characterized in that: The secondary slurry filtering chamber, the mixing and stirring chamber, the electrostatic rectification chamber and the stamping atomization chamber are connected through a threaded structure, and a sealing ring is arranged on the threaded structure.

9. The multifunctional electrostatic rectifier spraying machine nozzle according to claim 1, characterized in that: The nozzle is connected to the support frame through a slurry water interface. A direction handle is arranged at the rear of the support frame, a control box is arranged at the front end of the direction handle, and a universal wheel and a nylon wheel are arranged below the support frame.

10. The working method of the nozzle of the multifunctional electrostatic rectifier spraying machine as described in any one of claims 1 to 9, wherein the slurry flows into the secondary slurry filtration cavity through the slurry water port and the vertical punching port respectively, and after flowing in from the slurry water port, the slurry flows into the primary filter screen through the first guide plate in turn, and then flows along the channel to the position of the primary flow resistance structure, and the slurry continues to flow from the flow resistance structure of the primary filter screen to the secondary guide plate, and then flows through the flow resistance structure of the secondary guide plate to the liquid in the vertical punching port below, and then flows into the mixing and stirring cavity, is mixed by the fan blades, and then the mixed liquid flows into the electrostatic rectifier cavity, and the interior of the shell is divided into non-connected mixing and stirring space and ionization space by the insulating layer of insulating rubber material, so that the surface of the liquid droplets presents the mutual attraction of the anode and the wall presents the cathode, and after flowing out of the stamping atomization cavity, the spraying material can be more firmly adsorbed on the wall surface.

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