Foam dust removal device for sand dust test
By designing a rotating foam spraying mechanism and an inner wall cleaning mechanism, the problems of single foam spraying angle and incomplete cleaning are solved, achieving efficient cleaning of the dust collection box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-03
AI Technical Summary
The existing foam dust removal device for sand and dust testing has a single foam spray angle, and the foam adhering to the inner wall of the dust collection box after spraying is not completely removed, resulting in low work efficiency.
The design incorporates a rotating foam spraying mechanism and an internal wall cleaning mechanism. The rotating foam spraying mechanism uses multi-angle foam spraying to adhere to and remove sand, dust, and dirt, while the internal wall cleaning mechanism uses a scraper and an air pump to quickly remove residue.
It achieves uniform foam spraying and rapid removal, improving dust removal efficiency and ensuring the cleanliness of the dust collection box.
Smart Images
Figure CN223959387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand and dust testing technology, specifically to a foam dust removal device for sand and dust testing. Background Technology
[0002] Sand and dust tests are typically conducted using a sand and dust test chamber, which is connected to a dust collection chamber via piping. After the test, the sand and dust are discharged into the dust collection chamber via a vacuum device for further treatment to prevent environmental impact. A foam dust collector is installed inside the dust collection chamber to remove any loose sand and dust, preventing overflow when the chamber is opened. However, existing foam dust collectors installed inside the dust collection chamber have a limited range of spray angles, and the foam and impurities adhering to the inner wall of the chamber after spraying are difficult to remove, leading to incomplete cleaning and low efficiency.
[0003] Therefore, it is very necessary to propose a foam dust removal device for sand and dust testing to address the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a foam dust removal device for sand and dust testing. By setting up a rotating foam spraying mechanism and an inner wall cleaning mechanism, it solves the problems of existing foam dust removal devices installed inside the dust removal box of sand and dust test chambers, which have a single foam spraying angle and are difficult to clean after foam spraying and adhering to the inner wall of the dust removal box, thereby improving work efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A foam dust removal device for sand and dust testing includes a foam machine and a dust collection box. The foam machine is located above the dust collection box and includes a foam machine body. A connecting plate is fixedly connected to the bottom of the foam machine body, and a foam outlet is located at the center of the connecting plate. The foam outlet is rotatably connected to a rotary foam spraying mechanism via a sealing ring. The rotary foam spraying mechanism includes a foam nozzle. The first end of the foam nozzle has a foam conveying shaft connected to the foam outlet. A toothed ring is located on the outer side of the foam conveying shaft, and the toothed ring is meshed with a gear. The gear is fixedly connected to the output end of a drive motor. The second end of the foam nozzle has a foam outlet. A dust collection chamber is opened on the inner side of the upper end of the dust collection box, and the opening side of the dust collection box can rotate. The system is connected to a front door panel, with a protruding plate fixedly connected to the inner side of the front door panel. An inner wall cleaning mechanism is installed on the upper end of the dust collection box. The inner wall cleaning mechanism includes a cleaning scraper, which consists of a scraper body disposed inside the dust collection chamber. An air inlet is provided at the upper end of the scraper body, and an exhaust outlet is provided at the bottom end of the scraper body. Electric telescopic rods and air pumping mechanisms are symmetrically arranged on both sides of the upper end of the scraper body. The fixed ends of the electric telescopic rods and air pumping mechanisms are fixedly connected to the inner side of the mounting housing. The air pumping mechanism includes a fixed hollow column, with a first one-way valve fixedly connected to the inner side of the top of the fixed hollow column. A movable hollow column is slidably connected to the inner side of the lower end of the fixed hollow column, and a second one-way valve is fixedly connected to the top of the movable hollow column.
[0007] Preferably, the air inlet is connected to the movable hollow column, and a number of exhaust holes are evenly distributed at the bottom of the scraper body with their openings facing the inner wall of the dust collector. The angle between the axis of the exhaust hole and the upper surface of the scraper body is 45°.
[0008] Preferably, there are two housings, each including a housing body with a central hole; the housing body is fixedly connected to the dust collector and the angle between the housing body and the upper surface of the dust collector is 90°; the central hole penetrates the top of the housing body and is connected to the fixed hollow column and the movable hollow column through a first one-way valve and a second one-way valve.
[0009] Preferably, the first one-way valve is an intake one-way valve, and the second one-way valve is an exhaust one-way valve.
[0010] Preferably, both the moving end of the electric telescopic rod and the moving hollow column penetrate the top plate of the dust collector and are slidably connected to the top plate of the dust collector through a sealing ring.
[0011] Preferably, the connecting plate is located outside the rotating foam spraying mechanism and has a U-shaped cross-section. The bottom end of the connecting plate is sealed to the top plate of the dust collector by a sealing gasket.
[0012] Preferably, the top plate of the dust collector has an installation hole, the foam nozzle is located inside the installation hole, and the bottom end of the foam nozzle is located inside the dust collector chamber.
[0013] Preferably, the drive motor is fixedly connected to the main body of the foam machine.
[0014] Preferably, there are three foam outlets, with the middle foam outlet having an angle of 90° with the upper surface of the dust collector, and the foam outlets on both sides being symmetrically arranged with an angle of 45° with the upper surface of the dust collector.
[0015] Preferably, the interior of the scraper body is hollowed out.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. By setting up a rotating foam spraying mechanism, this utility model can evenly spray foam inside the dust collection box during multi-angle foam spraying, adhering sand, dirt and other impurities, and then discharging them. This can quickly and efficiently remove sand, dirt and other impurities from the dust collection box of the sand and dust test chamber.
[0018] 2. This utility model, by setting an inner wall cleaning mechanism, can quickly remove foam and sand adhering to the inner wall, improving work efficiency. Furthermore, when the scraper body is reset by the electric telescopic rod, air drawn in from inside the fixed hollow column can enter the hollowed-out position inside the scraper body through the second one-way valve and air inlet, and then be blown into the dust collection box through the exhaust port to dry any remaining moisture, thereby improving the cleaning effect. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the foam dust removal device for sand and dust testing according to this utility model;
[0020] Figure 2 This is a schematic diagram of the installation position of the connecting plate of this utility model;
[0021] Figure 3 This is a schematic diagram of the toothed ring mounting position structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the internal wall cleaning mechanism of this utility model;
[0023] Figure 5 This utility model Figure 4 Schematic diagram of the structure at point A in the middle;
[0024] Figure 6 This is a cross-sectional view of the air pumping mechanism of this utility model;
[0025] Figure 7 This utility model Figure 6 Schematic diagram of the structure at point B;
[0026] Figure 8 This utility model Figure 6 Schematic diagram of the structure at point C;
[0027] Figure 9 This utility model Figure 6 Schematic diagram of the structure at point D.
[0028] In the picture:
[0029] 1. Dust collection box; 2. Front door panel; 3. Raised plate; 4. Dust collection chamber; 5. Inner wall cleaning mechanism; 51. Cleaning scraper; 511. Scraper body; 512. Exhaust port; 513. Air inlet; 52. Mounting shell; 521. Shell body; 522. Center hole; 53. Electric telescopic rod; 54. Air pumping mechanism; 541. Fixed hollow column; 542. Moving hollow column; 543. First one-way valve; 544. Second one-way valve; 6. Mounting hole; 7. Foam machine; 71. Foam machine body; 72. Connecting plate; 8. Rotary foam spraying mechanism; 81. Foam nozzle; 82. Foam outlet; 83. Gear ring; 84. Foam conveying shaft; 85. Drive motor; 86. Gear. Detailed Implementation
[0030] 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.
[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0032] This utility model provides a technical solution:
[0033] like Figures 1-9 As shown, a foam dust removal device for sand and dust test includes a foam machine 7 and a dust collection box 1. The foam machine 7 is installed at the middle of the upper end of the dust collection box 1 of the sand and dust test chamber by bolts.
[0034] A dust removal chamber 4 is provided on the inner side of the upper end of the dust removal box 1. A front door panel 2 is rotatably connected to the opening side of the dust removal box 1. A protruding plate 3 is fixedly connected to the inner side of the front door panel 2. When the front door panel 2 is closed, the edge of the protruding plate 3 fits and seals with the edge of the door frame on the opening side.
[0035] An inner wall cleaning mechanism 5 is installed on the upper end of the dust collection chamber 1. The inner wall cleaning mechanism 5 includes a cleaning scraper 51, which includes a scraper body 511, and the scraper body 511 is disposed inside the dust collection chamber 1. The interior of the scraper body 511 is hollow, and an air inlet 513 is opened at the upper end of the scraper body 511, and an exhaust vent 512 is opened at the bottom end of the scraper body 511. Electric telescopic rods 53 and air pumping mechanisms 54 are fixedly connected to both sides of the upper end of the scraper body 511. The fixed ends of the electric telescopic rods 53 and air pumping mechanisms 54 are fixedly connected to the inside of the mounting housing 52, and the electric telescopic rods 53 and air pumping mechanisms 54 on both sides of the scraper body 511 are symmetrically arranged.
[0036] The air pumping mechanism 54 includes a fixed hollow column 541 located at the fixed end of the air pumping mechanism 54, a first one-way valve 543 fixedly connected to the inner side of the top of the fixed hollow column 541, a movable hollow column 542 located at the movable end of the air pumping mechanism 54 slidably connected to the inner side of the lower end of the fixed hollow column 541, and a second one-way valve 544 fixedly connected to the top of the movable hollow column 542.
[0037] The foam machine 7 includes a foam machine body 71, and foam is disposed inside the foam machine body 71. A connecting plate 72 is fixedly connected to the bottom of the foam machine body 71, and the foam output port of the foam machine 7 located at the center of the connecting plate is rotatably connected to the rotating foam spraying mechanism 8 through a sealing ring.
[0038] The rotary foam spraying mechanism 8 includes a foam nozzle 81. A hollow foam conveying shaft 84, communicating with a foam outlet, is fixedly connected to the middle of the first end of the foam nozzle 81. A gear ring 83 is disposed outside the foam conveying shaft 84, and the outer side of the gear ring 83 meshes with a gear 86. The gear 86 is fixedly connected to the output end of a drive motor 85. A plurality of foam outlets 82 are fixedly connected to the second end of the foam nozzle 81 for spraying foam into the dust collection chamber.
[0039] The system includes an inner wall cleaning mechanism 5, mounting holes 6, a foam machine 7, and a rotating foam spraying mechanism 8, wherein:
[0040] The air inlet 513 on the upper end of the scraper body 511 of the inner wall cleaning mechanism 5 is connected to the movable hollow column 542. Several exhaust holes 512 are provided on the scraper body 511, evenly distributed at the bottom end of the scraper body 511, with the axis of the exhaust hole 512 forming a 45° angle with the upper surface of the scraper body 511. The bottom opening of the exhaust hole 512 faces towards the inner wall of the dust collection box 1. Through this structure, as the scraper body 511 moves upward, residual moisture on the inner wall of the dust collection box 1 can be dried, thereby improving the cleaning effect.
[0041] Two mounting housings 52 are provided, each including a housing body 521 with a central hole 522. The housing body 521 is fixedly connected to the dust collector 1, and the angle between the housing body 521 and the upper surface of the dust collector 1 is 90°, i.e., they are perpendicular to each other. The central hole 522 penetrates the top of the housing body 521 and is connected to the fixed hollow column 541 and the movable hollow column 542 through a first one-way valve 543 and a second one-way valve 544. The first one-way valve 543 is an intake one-way valve, and the second one-way valve 544 is an exhaust one-way valve. This structure enhances the stability of the electric telescopic rod 53 and the air pumping mechanism 54, while the first one-way valve 543 and the second one-way valve 544 allow for air pumping into the scraper body 511.
[0042] The moving end of the electric telescopic rod 53 and the moving hollow column 542 both penetrate the top plate of the dust collection box 1, and are slidably connected to the top plate of the dust collection box 1 via sealing rings. The scraper body 511 is disposed inside the dust collection chamber 4. This structure improves the stability of the scraper body 511 during movement driven by the electric telescopic rod 53.
[0043] A connecting plate 72 is positioned outside the rotary foam spraying mechanism 8, and its cross-section is U-shaped. The bottom end of the connecting plate 72 is tightly sealed to the top plate of the dust collection box 1 using a sealing gasket. The foam machine body 71, connected to the connecting plate 72, is fixedly connected to the top plate of the dust collection box 1 using bolts. This structure ensures the stability of the connection between the rotary foam spraying mechanism 8 and the dust collection box 1.
[0044] A mounting hole 6 is provided on the top plate of the dust collection box 1, and a foam nozzle 81 is installed inside the mounting hole 6, with the bottom end of the foam nozzle 81 located inside the dust collection chamber 4. The drive motor 85 is fixedly connected to the outer shell of the foam machine body 71. This structure further improves the overall stability of the device during operation.
[0045] There are three foam outlets 82 arranged side by side. The foam outlet 82 in the middle is at a 90° angle to the upper surface of the dust collection box 1, that is, it is set perpendicular to each other. The foam outlets 82 on both sides are symmetrically arranged and are at a 45° angle to the upper surface of the dust collection box 1. This allows the inside of the dust collection box 1 to be cleaned from multiple angles during the rotation of the foam nozzle 81, which significantly improves the cleaning effect.
[0046] The specific embodiments of this utility model are further described below:
[0047] Work process: During operation, this utility model is powered by an external power source. After the sand and dust test is completed in the sand and dust test chamber, the generated sand and dust is discharged into the dust removal box 1 through the pipe opened on the side of the sand and dust test chamber and the dust removal box 1 for dust removal treatment, so as to prevent the sand and dust from affecting the surrounding environment.
[0048] When the foam machine 7 is started, it sprays foam into the dust removal chamber 4 through the hollow foam conveying shaft 84, foam nozzle 81 and foam outlet 82. This can quickly adsorb and treat the sand and dust inside the dust removal box 1 to prevent the sand and dust from overflowing from the front door panel 2 after the dust removal box 1 is opened.
[0049] During the foam spraying process of the foam machine 7, the drive motor 85 starts, driving the gear 86 to rotate. The gear 86 drives the gear ring 83 to rotate synchronously. As the gear ring 83 rotates, it drives the foam nozzle 81 to rotate. The rotating foam nozzle 81 can evenly spray foam onto the surface inside the dust collection box 1. The foam can adhere to sand, dirt, and other impurities, and then discharge them, which can quickly and efficiently remove sand, dirt, and other impurities inside the dust collection box 1.
[0050] After the foam cleaning is completed, the electric telescopic rod 53 is activated, causing the scraper body 511 to move downwards from the top of the dust collection chamber 4, thus promptly scraping off the foam and sand from the inner wall of the dust collection box 1. During the downward movement of the scraper body 511, outside air is drawn into the fixed hollow column 541 through the first one-way valve 543. When the scraper body 511 returns to its original position under the action of the electric telescopic rod 53, the air inside the fixed hollow column 541 enters the hollowed-out area inside the scraper body 511 through the second one-way valve 544 and the air inlet 513, and is then blown into the dust collection box 1 through the exhaust vent 512 to dry any remaining moisture, thereby improving the cleaning effect.
[0051] Although embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these 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 foam dust removal device for sand and dust testing, comprising a foam generator and a dust collection box, characterized in that: The foam machine is located above the dust collection box and includes a foam machine body. A connecting plate is fixedly connected to the bottom of the foam machine body, and a foam output port is located at the center of the connecting plate. The foam output port is rotatably connected to the rotary foam spraying mechanism through a sealing ring. The rotary foam spraying mechanism includes a foam nozzle. The first end of the foam nozzle is provided with a foam conveying shaft that communicates with the foam output port. A toothed ring is provided on the outside of the foam conveying shaft. The toothed ring is meshed with a gear, and the gear is fixedly connected to the output end of the drive motor. The second end of the foam nozzle is provided with a foam outlet. A dust collection chamber is provided on the inner side of the upper end of the dust collection box. A front door panel is rotatably connected to one side of the dust collection box opening. A protruding plate is fixedly connected to the inner side of the front door panel. An inner wall cleaning mechanism is installed on the upper end of the dust collection box. The inner wall cleaning mechanism includes a cleaning scraper, which includes a scraper body set inside the dust collection chamber. An air inlet is provided on the upper end of the scraper body, and an exhaust port is provided on the bottom end of the scraper body. Electric telescopic rods and air pumping mechanisms are symmetrically arranged on both sides of the upper end of the scraper body. The fixed ends of the electric telescopic rods and air pumping mechanisms are fixedly connected to the inner side of the mounting shell. The air pumping mechanism includes a fixed hollow column. A first one-way valve is fixedly connected to the inner side of the top of the fixed hollow column. A movable hollow column is slidably connected to the inner side of the lower end of the fixed hollow column. A second one-way valve is fixedly connected to the top of the movable hollow column.
2. The foam duster for sand and dust test according to claim 1, characterized in that: The air inlet is connected to the movable hollow column, and several exhaust holes are evenly distributed at the bottom of the scraper body with their openings facing the inner wall of the dust collector. The angle between the axis of the exhaust hole and the upper surface of the scraper body is 45°.
3. The foam duster for sand and dust test according to claim 1, characterized in that: The mounting housing has two parts, each including a housing body with a central hole. The housing body is fixedly connected to the dust collector and forms a 90° angle with the upper surface of the dust collector. The central hole passes through the top of the housing body and is connected to the fixed hollow column and the movable hollow column through a first one-way valve and a second one-way valve.
4. The foam duster for sand and dust test according to claim 3, characterized in that: The first check valve is an intake check valve, and the second check valve is an exhaust check valve.
5. The foam duster for sand and dust test according to claim 1, characterized in that: Both the moving end of the electric telescopic rod and the moving hollow column penetrate the top plate of the dust collector and are slidably connected to the top plate of the dust collector through a sealing ring.
6. The foam duster for sand and dust test according to claim 5, characterized in that: The connecting plate is located outside the rotating foam spraying mechanism and has a U-shaped cross-section. The bottom end of the connecting plate is sealed to the top plate of the dust collector box through a sealing gasket.
7. The foam duster for sand and dust test according to claim 5, characterized in that: The top plate of the dust collector has mounting holes, and the foam nozzle is located inside the mounting holes, with the bottom of the foam nozzle located inside the dust collector chamber.
8. The foam duster for sand and dust test according to claim 1, characterized by: The drive motor is fixedly connected to the main body of the foam machine.
9. The foam duster for sand and dust test according to claim 1, characterized by: There are three foam outlets. The foam outlet in the middle is at a 90° angle to the upper surface of the dust collector, while the foam outlets on both sides are symmetrically arranged and are at a 45° angle to the upper surface of the dust collector.
10. The foam duster for sand and dust test according to claim 1, characterized by: The scraper body has a hollowed-out interior.