Low noise dust generator

Abstract

The utility model relates to dust generator technical field, and disclose a kind of low-noise dust generator, including dispersing device and threaded conveyor, the left end bolt connection of threaded conveyor has powder storage tank, the surface connection of threaded conveyor has support frame, the left end bolt connection of support frame is in aerosol storage tank, dispersing device bolt connection is in the bottom end surface of threaded conveyor, dispersing device includes laval nozzle, the right side surface bolt connection of laval nozzle has dispersion tank, the top bolt connection of dispersion tank has solenoid valve, the top right side bolt connection of dispersion tank has noise reduction device. The low-noise dust generator, by being provided with noise reduction sponge, storage shell, sound-absorbing baffle and air compressor, noise reduction sponge and sound-absorbing baffle carry out noise reduction operation to air compressor, reduce the sound produced by air compressor, avoid that the hearing of staff can be permanently damaged, lead to hearing loss or deafness, protect the physical safety of staff.

Description

Technical Field

[0001] This utility model relates to the field of dust generator technology, specifically a low-noise dust generator. Background Technology

[0002] A dust generator is a device that can quantitatively generate dust aerosols with specific concentrations and particle size distributions. It is widely used in environmental monitoring, industrial production, scientific research, and occupational health. Its core function is to simulate real dust environments or provide a stable aerosol source for experiments by precisely controlling airflow, particle dispersion, and feeding systems.

[0003] Existing dust generators adjust the output air pressure of the air compressor to make the airflow impact dry powder to form an aerosol. The air compressor usually generates noise when it is running. The noise level varies depending on the type of compressor, working status, maintenance and installation environment, and ranges from 60 decibels to above 90 decibels. Noise can stimulate the sympathetic nervous system, leading to increased heart rate and blood pressure. Long-term exposure may increase the risk of cardiovascular disease and easily cause physical danger to workers. Utility Model Content

[0004] The purpose of this invention is to provide a low-noise dust generator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-noise dust generator, comprising a dispersing device and a threaded conveyor, wherein a powder storage tank is bolted to the left end of the threaded conveyor, a support frame is connected to the surface of the threaded conveyor, the left end of the support frame is bolted to the aerosol storage tank, and the dispersing device is bolted to the bottom surface of the threaded conveyor.

[0006] The dispersion device includes a Laval nozzle, a dispersion tank is bolted to the right side surface of the Laval nozzle, an electromagnetic valve is bolted to the top of the dispersion tank, and a noise reduction device is bolted to the right side of the top of the dispersion tank.

[0007] The noise reduction device includes a storage shell, an inner wall surface of which is bolted with a sound-absorbing baffle, an inner wall surface of which is inserted with noise-reducing sponge, an inner bottom surface of which is bolted with an air compressor, a right end of which is threaded with a fastening bolt, a right end of which is inserted with a noise-reducing cabinet door, a top surface of which is bolted with a connecting pipe, and a connecting sleeve installed at the right end of which.

[0008] Preferably, the connecting sleeve is installed on the top of the storage shell, and the storage shell determines the position of the connecting sleeve and the connecting pipe, which facilitates the disassembly of the connecting sleeve and the connecting pipe, making the disassembly of the connecting sleeve and the connecting pipe quick and convenient.

[0009] Preferably, the fastening bolts are bolted to the front and rear ends of the noise reduction cabinet door. The fastening bolts lock and fix the noise reduction cabinet door and the storage shell, determine the position of the noise reduction cabinet door, and facilitate the disassembly and replacement of the noise reduction cabinet door.

[0010] Preferably, the dispersion tank is bolted to the bottom end of the support frame, and the storage shell is bolted to the bottom end of the support frame. The support frame determines the position of the dispersion tank and the storage shell, making it convenient to disassemble and replace the dispersion tank and the storage shell.

[0011] Preferably, the electromagnetic valve is bolted to the bottom end of the threaded conveyor. The electromagnetic valve conveys the powder inside the threaded conveyor into the dispersion tank, allowing the powder to disperse inside the dispersion tank and form a powder aerosol.

[0012] Preferably, the noise-reducing sponge is installed on the inner wall surface of the storage shell, and the sound-absorbing partition and noise-reducing sponge reduce the noise of the air compressor.

[0013] Preferably, the noise-reducing cabinet door is movably connected to the right side surface of the noise-reducing sponge, and the noise-reducing cabinet door is movably connected to the right side surface of the sound-absorbing partition. The noise-reducing cabinet door and the storage shell determine the position of the sound-absorbing partition and the noise-reducing sponge, making it convenient to disassemble and replace the sound-absorbing partition and the noise-reducing sponge.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This low-noise dust generator is equipped with noise-reducing sponge, storage shell, sound-absorbing baffle and air compressor. The noise-reducing sponge and sound-absorbing baffle reduce the noise generated by the air compressor, thereby preventing permanent damage to the hearing of workers, which may lead to hearing loss or deafness, and protecting the physical safety of workers.

[0015] 2. This low-noise dust generator is equipped with a storage shell, a noise-reducing cabinet door, and fastening bolts. The fastening bolts can be detached from the storage shell and the noise-reducing cabinet door, allowing the noise-reducing sponge and sound-absorbing partition to be easily removed from the storage shell. This makes it easier and faster to replace the noise-reducing sponge and sound-absorbing partition. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a three-dimensional schematic diagram of the dispersion device of this utility model; Figure 3This is a three-dimensional schematic diagram of the internal components of the noise reduction device of this utility model; Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the diagram.

[0017] In the diagram: 1. Dispersion device; 11. Laval nozzle; 12. Dispersion tank; 13. Noise reduction device; 131. Storage shell; 132. Noise reduction sponge; 133. Sound-absorbing partition; 134. Air compressor; 135. Connecting sleeve; 136. Connecting pipe; 137. Fastening bolt; 138. Noise reduction cabinet door; 14. Solenoid valve; 2. Threaded conveyor; 3. Support frame; 4. Aerosol storage tank; 5. Powder storage tank. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 The present invention provides the following technical solution: A low-noise dust generator includes a dispersing device 1 and a threaded conveyor 2. The left end of the threaded conveyor 2 is bolted to a powder storage tank 5. A support frame 3 is connected to the surface of the threaded conveyor 2. The left end of the support frame 3 is bolted to an aerosol storage tank 4. The dispersing device 1 is bolted to the bottom surface of the threaded conveyor 2.

[0020] The dispersion device 1 includes a Laval nozzle 11, a dispersion tank 12 is bolted to the right side surface of the Laval nozzle 11, an electromagnetic valve 14 is bolted to the top of the dispersion tank 12, the electromagnetic valve 14 is bolted to the bottom of the threaded conveyor 2, the electromagnetic valve 14 conveys the powder inside the threaded conveyor 2 into the dispersion tank 12, allowing the powder to be dispersed inside the dispersion tank 12 to form a powder aerosol, and a noise reduction device 13 is bolted to the right side of the top of the dispersion tank 12.

[0021] The noise reduction device 13 includes a storage shell 131, a dispersion tank 12 bolted to the bottom of a support frame 3, and a storage shell 131 bolted to the bottom of a support frame 3. The support frame 3 determines the position of the dispersion tank 12 and the storage shell 131, making it convenient to disassemble and replace the dispersion tank 12 and the storage shell 131.

[0022] A sound-absorbing baffle 133 is bolted to the inner wall surface of the storage housing 131. A noise-reducing sponge 132 is inserted into the inner wall surface of the sound-absorbing baffle 133. An air compressor 134 is bolted to the inner bottom surface of the storage housing 131. The noise-reducing sponge 132 is installed on the inner wall surface of the storage housing 131. The sound-absorbing baffle 133 and the noise-reducing sponge 132 reduce the noise of the air compressor 134.

[0023] The right end of the storage housing 131 is threaded with a fastening bolt 137, and the right end of the sound-absorbing partition 133 is inserted with a noise-reducing cabinet door 138. The noise-reducing cabinet door 138 is movably connected to the right side surface of the noise-reducing sponge 132 and the right side surface of the sound-absorbing partition 133. The noise-reducing cabinet door 138 and the storage housing 131 determine the position of the sound-absorbing partition 133 and the noise-reducing sponge 132, making it convenient to disassemble and replace the sound-absorbing partition 133 and the noise-reducing sponge 132.

[0024] Fastening bolts 137 are bolted to the front and rear ends of the noise reduction cabinet door 138. The fastening bolts 137 lock and fix the noise reduction cabinet door 138 and the storage shell 131, and determine the position of the noise reduction cabinet door 138, so as to facilitate the disassembly and replacement of the noise reduction cabinet door 138.

[0025] The top surface of the air compressor 134 is bolted with a connecting pipe 136. A connecting sleeve 135 is installed at the right end of the connecting pipe 136. The connecting sleeve 135 is installed at the top of the storage housing 131. The storage housing 131 determines the position of the connecting sleeve 135 and the connecting pipe 136, which facilitates the disassembly of the connecting sleeve 135 and the connecting pipe 136, making the disassembly of the connecting sleeve 135 and the connecting pipe 136 quick and convenient.

[0026] When in use, turn the fastening bolt 137 to disengage the fastening bolt 137 from the storage housing 131 and the noise reduction cabinet door 138, thus loosening the connection between the noise reduction cabinet door 138 and the storage housing 131.

[0027] Pull the noise reduction cabinet door 138 outward to detach it from the storage shell 131, making it easier to maintain the air compressor 134 inside the storage shell 131. At the same time, the sound-absorbing baffle 133 and noise-reducing sponge 132 inside the storage shell 131 reduce the noise of the air compressor 134.

[0028] The solid powder to be dispersed is stored inside the powder storage tank 5 and enters the screw conveyor 2. The screw conveyor 2 breaks up the solid powder and continuously transports the broken powder.

[0029] After being dispersed, the powder enters the interior of the dispersion tank 12 through the threaded conveyor 2 and the solenoid valve 14. At this time, the solenoid valve 14 is closed to keep the dispersion tank 12 in a closed state, and then the air compressor 134 is started.

[0030] Air compressor 134 compresses air, and the compressed air is delivered into the dispersion tank 12 through connecting pipe 136. The compressed air enters the dispersion tank 12 and separates and disperses the contents of the dispersion tank 12 again.

[0031] After being dispersed, the gas passes through the Laval nozzle 11, which generates a supersonic airflow to enhance the shearing effect. The powder is then dispersed a second time and then a third time before being injected into the aerosol storage tank 4.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-noise dust generator, comprising a dispersing device (1) and a threaded conveyor (2), characterized in that: The left end of the threaded conveyor (2) is bolted to a powder storage tank (5), the surface of the threaded conveyor (2) is connected to a support frame (3), the left end of the support frame (3) is bolted to an aerosol storage tank (4), and the dispersion device (1) is bolted to the bottom surface of the threaded conveyor (2). The dispersion device (1) includes a Laval nozzle (11), a dispersion tank (12) is bolted to the right side surface of the Laval nozzle (11), an electromagnetic valve (14) is bolted to the top of the dispersion tank (12), and a noise reduction device (13) is bolted to the right side of the top of the dispersion tank (12). The noise reduction device (13) includes a storage shell (131), a sound-absorbing baffle (133) is bolted to the inner wall surface of the storage shell (131), a noise-reducing sponge (132) is inserted into the inner wall surface of the sound-absorbing baffle (133), an air compressor (134) is bolted to the inner bottom surface of the storage shell (131), a fastening bolt (137) is threaded to the right end of the storage shell (131), a noise-reducing cabinet door (138) is inserted into the right end of the sound-absorbing baffle (133), a connecting pipe (136) is bolted to the top surface of the air compressor (134), and a connecting sleeve (135) is installed at the right end of the connecting pipe (136).

2. The low-noise dust generator according to claim 1, characterized in that: The connecting sleeve (135) is installed on the top of the storage housing (131).

3. A low-noise dust generator according to claim 2, characterized in that: The fastening bolts (137) are bolted to the front and rear ends of the noise reduction cabinet door (138).

4. A low-noise dust generator according to claim 3, characterized in that: The dispersion tank (12) is bolted to the bottom of the support frame (3), and the storage shell (131) is bolted to the bottom of the support frame (3).

5. A low-noise dust generator according to claim 4, characterized in that: The electromagnetic valve (14) is bolted to the bottom of the threaded conveyor (2).

6. A low-noise dust generator according to claim 5, characterized in that: The noise-reducing sponge (132) is installed on the inner wall surface of the storage shell (131).

7. A low-noise dust generator according to claim 6, characterized in that: The noise-reducing cabinet door (138) is movably connected to the right side surface of the noise-reducing sponge (132), and the noise-reducing cabinet door (138) is movably connected to the right side surface of the sound-absorbing partition (133).

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