High tower powder spraying atomization spray gun capable of preventing material blockage

Abstract

The utility model discloses a high tower powder spraying atomization spray gun capable of preventing material blockage, and relates to the technical field of atomization drying. The spray gun comprises a spray gun body, a limiting cover and a high-pressure air pump, a rotary motor is fixed to the center of the top of the spray gun body in a penetrating and clamping mode, a rotary cleaning roller is attached to the inner wall of the spray gun body, the limiting cover is rotationally clamped to the bottom of the spray gun body, and a replaceable atomizing nozzle is inserted to the top of the limiting cover in a penetrating mode; one end of the high-pressure air pump penetrates through and is clamped with a filtering assembly; through the arrangement of the spray gun main body, the limiting cover and the high-pressure air pump, the problems that when the atomizing spray gun is used, slurry attached to the inner wall of the spray gun is difficult to clean, the volume in the spray gun is reduced by the dried slurry, the subsequent slurry is polluted, and the nozzle is inconvenient to disassemble and assemble are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of atomization drying, and particularly relates to a high tower powder spraying atomization spray gun for preventing material blockage. Background Technique

[0002] The powder spraying tower is an important part of the chemical process flow, mainly used to complete the powdering of the slurry mixture. Liquid raw materials such as suspension, solution, emulsion, and paste liquid are atomized and sprayed into the powder spraying tower through a spray gun, so that the atomized liquid contacts with hot air, further enabling the solvent to quickly vaporize and obtaining dry powder. Among them, the atomization spray gun is one of the main structures of the powder spraying tower to ensure that the liquid enters the powder spraying tower with sufficiently fine particles, so that the liquid particles can be quickly dried in the powder spraying tower. However, it still has the following disadvantages in actual use:

[0003] 1. The utility model with the publication number CN204261366U discloses an atomization spray gun. The end parts of the cylindrical ring wall are respectively provided with a first port and a second port; an air inlet pipe, which is communicated with the inside of the cylindrical ring wall to introduce high-pressure gas into the gun barrel; a material conveying pipe, which is sleeved inside the gun barrel and extends out of the first port along the axial direction of the gun barrel, and the joint of the first port and the material conveying pipe is hermetically arranged; a nozzle, which is connected to the second port, and the high-pressure gas is sprayed out through the nozzle to atomize the slurry entering from the material conveying pipe and sprayed out through the nozzle; a sealing device, which is movably connected to the spray gun to seal the nozzle, and the blocked nozzle is cleaned by high-pressure air flow to avoid material blockage of the atomization spray gun and reduce the disassembly, installation and cleaning times of the spray gun. However, due to the certain viscosity of the slurry, although the high-pressure air flow can handle the blocked slurry in the nozzle, it is difficult to handle the slurry adhering to the inner wall of the spray gun, resulting in the solidification of the slurry on the inner wall of the spray gun. In the long run, the volume inside the spray gun is reduced, the spraying efficiency of the spray gun is lowered, and the slurry is easily polluted.

[0004] 2. After the nozzle of the atomization spray gun is used for a long time, it often needs to be replaced. To ensure the stability of the nozzle during use, the installation method of the spray gun and the nozzle is usually relatively complex, not easy to disassemble, and increases the labor intensity of the staff. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high tower powder spraying atomization spray gun for preventing material blockage, which solves the problems that the slurry adhering to the inner wall of the atomization spray gun is difficult to clean during use, the dried slurry reduces the volume inside the spray gun, pollutes the subsequent slurry, and the disassembly and assembly of the nozzle are relatively inconvenient through the spray gun body, the limit cover and the high-pressure air pump.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to an atomizing spray gun for a high tower powder spraying to prevent material blockage, which comprises a spray gun body, a limiting cover and a high-pressure air pump. A rotary motor is fixedly clamped through the center of the top of the spray gun body. A rotating cleaning roller is attached to the inner wall of the spray gun body. The bottom of the spray gun body is rotatably clamped with a limiting cover. A replaceable atomizing nozzle is inserted through the top of the limiting cover. One end of the outer peripheral surface of the spray gun body is provided with a high-pressure air pump. A filtering component is clamped through one end of the high-pressure air pump. A return pipe is arranged on one side of the high-pressure air pump;

[0008] After the spray gun is used up, the rotary motor can drive the rotating cleaning roller to rotate, scrape off the slurry attached to the inner wall of the spray gun body. When the slurry adheres to the inner wall of the spray gun body and dries, the rotating cleaning roller can also roll and crush the dried slurry, so that the attached slurry falls off quickly, which is convenient for collecting the attached solid slurry and avoiding blockage in the spray gun body. When the replaceable atomizing nozzle needs to be replaced, control the limiting cover to rotate at the bottom of the spray gun body, so that one side of the limiting cover is separated from the bottom of the spray gun body, which is convenient for quickly taking out the replaceable atomizing nozzle. The operation is simple and convenient. After the powder spraying operation is completed, control the high-pressure air pump to pump the outside air into the spray gun body through the return pipe and discharge the gas through the replaceable atomizing nozzle, so that the slurry remaining in the replaceable atomizing nozzle is ejected, avoiding blockage of the spray gun. When the spray gun is used again, clean the inside of the spray gun body through the rotating cleaning roller, and pump air into the spray gun body through the high-pressure air pump, so that the outside air enters the spray gun body through the replaceable atomizing nozzle, driving the fallen solidified slurry residue into the filtering component for filtering, further ensuring the cleanliness of the inside of the spray gun body.

[0009] Further, a feed pipe and a first connecting pipe are welded through the outer peripheral surface of the spray gun body. A first solenoid valve is clamped through the outer peripheral surface of the feed pipe. A second solenoid valve is clamped through the outer peripheral surface of the first connecting pipe;

[0010] The slurry enters the spray gun body through the feed pipe and is then sprayed through the replaceable atomizing nozzle into the high tower for atomizing and drying. After the spray gun is used up, the rotary motor can drive the rotating cleaning roller to rotate, scrape off the slurry attached to the inner wall of the spray gun body. When the slurry adheres to the inner wall of the spray gun body and dries, the rotating cleaning roller can also roll and crush the dried slurry, so that the attached slurry falls off quickly, which is convenient for collecting the attached solid slurry and avoiding blockage in the spray gun body.

[0011] Further, a driving frame is clamped at the bottom of the rotary motor. The rotating cleaning roller is clamped at the bottom of the driving frame. A limiting block is fixedly welded at the bottom of the outer peripheral surface of the spray gun body;

[0012] A rotating motor is provided inside the driving frame. The rotating motor can drive the rotating cleaning roller to rotate, so as to scrape off the slurry adhering to the surface of the rotating cleaning roller, and avoid a large amount of slurry adhering to the surface of the rotating cleaning roller.

[0013] Furthermore, a positioning slot is penetrated and opened at the top of the limiting cover. One end of the outer peripheral surface of the limiting cover is welded and fixed with a limiting frame. One end of the top of the limiting cover is clamped with a rotating motor, and the rotating motor is clamped and fixed to the bottom of the spray gun body. The replaceable atomizing nozzle is inserted into the positioning slot, and the limiting frame fits on the outside of the limiting block;

[0014] When it is necessary to replace the replaceable atomizing nozzle, control the rotating motor to drive the limiting cover to rotate at the bottom of the spray gun body, so that one side of the limiting cover is separated from the bottom of the spray gun body, which is convenient for quickly taking out the replaceable atomizing nozzle. The operation is simple and convenient, reducing the labor intensity of the staff. When the spray gun is in use, the limiting block is used to limit the limiting frame, and further limit the limiting cover to ensure the stability of the limiting cover and the replaceable atomizing nozzle during use.

[0015] Furthermore, a waste residue box is penetrated and inserted at one end of the filtering assembly. A second connecting pipe is penetrated and welded on one side of the filtering assembly. An air extraction pipe is penetrated and welded on the outer peripheral surface of the second connecting pipe. The other end of the second connecting pipe relative to the filtering assembly is penetrated and clamped at one end of the first connecting pipe;

[0016] When the spray gun is used up, control the high-pressure air pump to extract air through the air extraction pipe, and make the air pass through the filtering assembly for filtration. The filtered air enters the spray gun body through the return pipe and is discharged through the replaceable atomizing nozzle, avoiding residual slurry from clogging in the replaceable atomizing nozzle and ensuring the normal use of the spray gun.

[0017] Furthermore, an exhaust pipe is penetrated and clamped on the outer peripheral surface of the high-pressure air pump. A third solenoid valve is penetrated and clamped on the outer peripheral surface of the exhaust pipe. One end of the return pipe is penetrated and clamped on the outer peripheral surface of the exhaust pipe. The exhaust pipe end of the return pipe is located between the high-pressure air pump and the third solenoid valve. The other end of the return pipe is penetrated and clamped on the outer peripheral surface of the feed pipe. The feed pipe end of the return pipe is located between the first solenoid valve and the spray gun body;

[0018] When the spray gun needs to be used again, close the air extraction pipe, control the high-pressure air pump to extract air from the spray gun body, so that the air in the high tower is pumped into the spray gun body through the replaceable atomizing nozzle, driving the pulverized solidified slurry into the filtering assembly, making the residue stay in the waste residue box, and then discharging the filtered air through the exhaust pipe, further ensuring the cleanliness of the spray gun body and avoiding the solidified slurry adhering to the inner wall of the spray gun body from contaminating the slurry used subsequently.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model solves the problem of cleaning a clogged nozzle through high-pressure air flow to avoid clogging of the atomizing spray gun and reduce the number of disassembly and cleaning times of the spray gun by setting a spray gun body and a high-pressure air pump. However, due to the certain viscosity of the slurry, although the high-pressure air flow can handle the clogged slurry in the nozzle, it is difficult to handle the slurry adhering to the inner wall of the spray gun, resulting in the solidification of the slurry on the inner wall of the spray gun. Over time, the volume inside the spray gun is reduced, the spraying efficiency of the spray gun is lowered, and the slurry is easily contaminated. After the spray gun body is used, control the high-pressure air pump to pump air into the spray gun body, and discharge the air through the replaceable atomizing nozzle to avoid residual slurry from clogging in the replaceable atomizing nozzle. At the same time, control the rotary motor to drive the rotating cleaning roller to rotate, and clean the inner wall of the spray gun body to avoid more slurry adhering to the inner wall of the spray gun. When the spray gun is used again, control the high-pressure air pump to extract air from the spray gun body, so that the air in the high tower is extracted into the spray gun body through the replaceable atomizing nozzle. Then, control the rotary motor to drive the rotating cleaning roller to rotate again, so that the solidified slurry adhering to the inner wall of the spray gun body is crushed by rolling. The crushed solidified slurry is driven by the air flow into the filter assembly for collection, further ensuring the cleanliness of the spray gun body and avoiding the contamination of the subsequent used slurry by the solidified slurry adhering to the inner wall of the spray gun body.

[0021] 2. The utility model solves the problem that the nozzle of the atomizing spray gun often needs to be replaced after long-term use. To ensure the stability of the nozzle during use, the installation method of the spray gun and the nozzle is usually relatively complex, not easy to disassemble, and increases the labor intensity of the staff. When the replaceable atomizing nozzle needs to be replaced, control the rotating motor to drive the limit cover to rotate at the bottom of the spray gun body, so that one side of the limit cover is separated from the bottom of the spray gun body, which is convenient for quickly taking out the replaceable atomizing nozzle. The operation is simple and convenient, reducing the labor intensity of the staff. When the spray gun is in use, the limit block is used to limit the limit frame, and further limit the limit cover to ensure the stability of the limit cover and the replaceable atomizing nozzle during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the structural effect diagram of the utility model;

[0023] Figure 2 is the structural diagram of the spray gun body of the utility model;

[0024] Figure 3 is the cross-sectional view of the spray gun body of the utility model;

[0025] Figure 4 is the structural diagram of the limit cover of the utility model;

[0026] Figure 5 is the structural diagram of the high-pressure air pump of the utility model.

[0027] Reference numerals:

[0028] 1. Spray gun body; 101. Rotary motor; 102. Feed pipe; 103. First solenoid valve; 104. First connecting pipe; 105. Second solenoid valve; 106. Limit block; 107. Driving frame; 108. Rotating cleaning roller; 2. Limit cover; 201. Limit frame; 202. Positioning slot; 203. Replaceable atomizing nozzle; 204. Rotating motor; 3. High-pressure air pump; 301. Filter assembly; 302. Waste residue box; 303. Exhaust pipe; 304. Third solenoid valve; 305. Second connecting pipe; 306. Suction pipe; 307. Return pipe. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Please refer to Figures 1-5 As shown, the present invention is a high tower powder spraying atomizing spray gun for preventing material blockage, including a spray gun body 1, a limit cover 2 and a high-pressure air pump 3. A rotary motor 101 is fixedly clamped through the center of the top of the spray gun body 1. A rotating cleaning roller 108 is attached to the inner wall of the spray gun body 1. A limit cover 2 is rotatably clamped at the bottom of the spray gun body 1. A replaceable atomizing nozzle 203 is inserted through the top of the limit cover 2. One end of the outer peripheral surface of the spray gun body 1 is provided with a high-pressure air pump 3. A filter assembly 301 is fixedly clamped at one end of the high-pressure air pump 3. A return pipe 307 is arranged on one side of the high-pressure air pump 3;

[0031] After the spray gun is used up, control the high-pressure air pump 3 to pump external air into the spray gun body 1 through the return pipe 307 and discharge the gas through the replaceable atomizing nozzle 203, so as to spray out the slurry remaining in the replaceable atomizing nozzle 203, avoid the blockage of the spray gun. At the same time, drive the rotating cleaning roller 108 to rotate through the rotary motor 101 to scrape off the slurry attached to the inner wall of the spray gun body 1. When the spray gun is used again, drive the rotating cleaning roller 108 to rotate again through the rotary motor 101 to roll and crush the dry slurry attached to the inner wall of the spray gun body 1, so that the attached slurry quickly falls off. At the same time, control the high-pressure air pump 3 to pump air out of the spray gun body 1, so that external air enters the spray gun body 1 through the replaceable atomizing nozzle 203, driving the fallen solidified slurry residue into the filter assembly 301 for filtering, further ensuring the cleanliness of the spray gun body 1. When the replaceable atomizing nozzle 203 needs to be replaced, control the limit cover 2 to rotate at the bottom of the spray gun body 1, so that one side of the limit cover 2 is separated from the bottom of the spray gun body 1, facilitating the quick removal and replacement of the replaceable atomizing nozzle 203.

[0032] Among them, as Figures 1-3As shown, a feed pipe 102 and a first connecting pipe 104 are welded through the outer peripheral surface of the spray gun body 1. A first solenoid valve 103 is clamped through the outer peripheral surface of the feed pipe 102, and a second solenoid valve 105 is clamped through the outer peripheral surface of the first connecting pipe 104. A driving frame 107 is clamped at the bottom of the rotary motor 101, and a rotating cleaning roller 108 is clamped at the bottom of the driving frame 107. A limiting block 106 is welded and fixed at the bottom of the outer peripheral surface of the spray gun body 1;

[0033] When the spray gun is in use, the first solenoid valve 103 is opened and the second solenoid valve 105 is closed. At the same time, the return pipe 307 is closed. The slurry enters the spray gun body 1 through the feed pipe 102 and is then sprayed through the replaceable atomizing nozzle 203 into the high tower for atomization drying. After the spray gun is used up, the rotary motor 101 drives the rotating cleaning roller 108 to rotate, scraping off the slurry adhering to the inner wall of the spray gun body 1. The driving frame 107 drives the rotating cleaning roller 108 to rotate self - rotatably, scraping off the slurry adhering to the surface of the rotating cleaning roller 108.

[0034] Among them, as Figure 1 、 4 shown, a positioning slot 202 is opened through the top of the limiting cover 2. A limiting frame 201 is welded and fixed at one end of the outer peripheral surface of the limiting cover 2. A rotating motor 204 is clamped at one end of the top of the limiting cover 2. The rotating motor 204 is clamped and fixed at the bottom of the spray gun body 1. The replaceable atomizing nozzle 203 is inserted into the positioning slot 202, and the limiting frame 201 fits on the outside of the limiting block 106;

[0035] When the replaceable atomizing nozzle 203 needs to be replaced, the rotating motor 204 is controlled to drive the limiting cover 2 to rotate at the bottom of the spray gun body 1, so that one side of the limiting cover 2 is separated from the bottom of the spray gun body 1. The replaceable atomizing nozzle 203 is taken out, and a new replaceable atomizing nozzle 203 is taken and inserted into the positioning slot 202. Then, the rotating motor 204 is controlled to drive the limiting cover 2 to rotate back to its original position. When the spray gun is in use, the limiting block 106 limits the limiting frame 201, further limiting the limiting cover 2 to ensure the stability of the limiting cover 2 and the replaceable atomizing nozzle 203 during use.

[0036] Among them, as Figure 1 、 5As shown, one end of the filtering component 301 is inserted through and connected with a waste residue box 302, one side of the filtering component 301 is welded through with a second connecting pipe 305, an air extraction pipe 306 is welded through the outer peripheral surface of the second connecting pipe 305, the other end of the second connecting pipe 305 relative to the filtering component 301 is clamped through one end of a first connecting pipe 104, an exhaust pipe 303 is clamped through the outer peripheral surface of a high-pressure air pump 3, a third electromagnetic valve 304 is clamped through the outer peripheral surface of the exhaust pipe 303, one end of a return pipe 307 is clamped through the outer peripheral surface of the exhaust pipe 303, and the exhaust pipe 303 end of the return pipe 307 is located between the high-pressure air pump 3 and the third electromagnetic valve 304. The other end of the return pipe 307 is clamped through the outer peripheral surface of a feed pipe 102, and the feed pipe 102 end of the return pipe 307 is located between a first electromagnetic valve 103 and a spray gun main body 1;

[0037] When the spray gun is not in use, close the third electromagnetic valve 304 and open the return pipe 307 and the air extraction pipe 306. Control the high-pressure air pump 3 to extract air through the air extraction pipe 306, so that the air is filtered through the filtering component 301 and enters the spray gun main body 1 through the exhaust pipe 303 and the return pipe 307. The air is discharged through the replaceable atomizing nozzle 203, so that the slurry remaining in the replaceable atomizing nozzle 203 is ejected. When the spray gun needs to be used again, close the air extraction pipe 306 and the return pipe 307, open the third electromagnetic valve 304, control the high-pressure air pump 3 to extract air from the spray gun main body 1, so that the air in the high tower is extracted into the spray gun main body 1 through the replaceable atomizing nozzle 203, drive the pulverized solidified slurry into the filtering component 301, make the residue stay in the waste residue box 302, and then discharge the filtered air through the exhaust pipe 303.

[0038] The specific working principle of the present utility model is as follows: When the spray gun is in use, the first solenoid valve 103 is opened and the second solenoid valve 105 is closed. At the same time, the return pipe 307 is closed. The slurry enters the spray gun body 1 through the feed pipe 102 and is then sprayed through the replaceable atomizing nozzle 203 into the high tower for atomization drying. After the spray gun is used up, the rotary motor 101 drives the rotating cleaning roller 108 to rotate, scraping off the slurry adhering to the inner wall of the spray gun body 1. The driving frame 107 drives the rotating cleaning roller 108 to rotate self - rotatably, scraping off the slurry adhering to the surface of the rotating cleaning roller 108. At the same time, the first solenoid valve 103 and the third solenoid valve 304 are closed, and the return pipe 307 and the suction pipe 306 are opened. The high - pressure air pump 3 is controlled to draw air through the suction pipe 306, so that the air is filtered through the filter assembly 301 and enters the spray gun body 1 through the exhaust pipe 303 and the return pipe 307, and the air is discharged through the replaceable atomizing nozzle 203, so that the slurry remaining in the replaceable atomizing nozzle 203 is ejected. When the spray gun needs to be used again, the suction pipe 306 and the return pipe 307 are closed, the second solenoid valve 105 and the third solenoid valve 304 are opened, and the high - pressure air pump 3 is controlled to draw air from the spray gun body 1, so that the air in the high tower is drawn into the spray gun body 1 through the replaceable atomizing nozzle 203. At the same time, the rotary motor 101 is controlled to drive the rotating cleaning roller 108 to rotate again to roll and crush the dry slurry adhering to the inner wall of the spray gun body 1, so that the adhering slurry quickly falls off and passes through the first connecting pipe 104 and the second connecting pipe 305 into the filter assembly 301 with the air flow, and the residue stays in the waste residue box 302, and then the filtered air is discharged through the exhaust pipe 303. When the replaceable atomizing nozzle 203 needs to be replaced, the rotating motor 204 is controlled to drive the limit cover 2 to rotate at the bottom of the spray gun body 1, so that one side of the limit cover 2 is separated from the bottom of the spray gun body 1, the replaceable atomizing nozzle 203 is taken out, and a new replaceable atomizing nozzle 203 is taken and inserted into the positioning slot 202, and then the rotating motor 204 is controlled to drive the limit cover 2 to rotate and reset.

[0039] The above are only the preferred embodiments of the present utility model, which do not limit the present utility model. Any modification of the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made all fall within the protection scope of the present utility model.

Claims

1. A high-tower powder spraying atomizing spray gun for preventing material blockage, comprising a spray gun body (1), a limit cover (2) and a high-pressure air pump (3), characterized in that: A rotary motor (101) is fixedly connected through the center of the top of the spray gun body (1), a rotating cleaning roller (108) is attached to the inner wall of the spray gun body (1), a limit cover (2) is rotatably connected to the bottom of the spray gun body (1), a replaceable atomizing nozzle (203) is inserted through the top of the limit cover (2), a high-pressure air pump (3) is arranged at one end of the outer peripheral surface of the spray gun body (1), a filter assembly (301) is connected through one end of the high-pressure air pump (3), and a return pipe (307) is arranged at one side of the high-pressure air pump (3).

2. A high tower powder spraying atomizing spray gun for preventing material blockage according to claim 1, characterized in that: A feed pipe (102) and a first connecting pipe (104) are welded through the outer circumference of the spray gun body (1), a first solenoid valve (103) is clamped through the outer circumference of the feed pipe (102), and a second solenoid valve (105) is clamped through the outer circumference of the first connecting pipe (104).

3. A high tower powder spraying atomizing spray gun for preventing material blockage according to claim 1, characterized in that: The bottom of the rotary motor (101) is clamped with a driving frame (107), the rotating cleaning roller (108) is clamped with the bottom of the driving frame (107), and a limiting block (106) is welded and fixed to the bottom of the outer peripheral surface of the spray gun body (1).

4. A high tower powder spraying atomizing spray gun for preventing material blockage according to claim 3, characterized in that: A positioning slot (202) is formed through the top of the limiting cover (2); a limiting frame (201) is welded and fixed to one end of the outer peripheral surface of the limiting cover (2); a rotating motor (204) is clamped to one end of the top of the limiting cover (2); the rotating motor (204) is clamped and fixed to the bottom of the spray gun body (1); the replaceable atomizing nozzle (203) is inserted into the positioning slot (202); and the limiting frame (201) is attached to the outside of the limiting block (106).

5. A high tower powder spraying atomizing spray gun for preventing material blockage according to claim 2, characterized in that: A waste residue box (302) is inserted through one end of the filter assembly (301), a second connecting pipe (305) is welded through one side of the filter assembly (301), an exhaust pipe (306) is welded through the outer peripheral surface of the second connecting pipe (305), and the other end of the second connecting pipe (305) relative to the filter assembly (301) is inserted through one end of the first connecting pipe (104).

6. A high tower powder spraying atomizing spray gun for preventing material blockage according to claim 2, characterized in that: An exhaust pipe (303) is inserted through the outer circumference of the high-pressure air pump (3), and a third solenoid valve (304) is inserted through the outer circumference of the exhaust pipe (303). One end of the return pipe (307) is inserted through the outer circumference of the exhaust pipe (303), and one end of the exhaust pipe (303) of the return pipe (307) is located between the high-pressure air pump (3) and the third solenoid valve (304). The other end of the return pipe (307) is inserted through the outer circumference of the feed pipe (102), and one end of the feed pipe (102) of the return pipe (307) is located between the first solenoid valve (103) and the spray gun body (1).

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