Cyclone dust collector

Abstract

The utility model provides a cyclone dust collector and relates to the technical field of dust collectors. The dust collector comprises an air inlet, a barrel body, a cone, a dust collecting chamber, a dust discharging valve, a bottom frame and a telescopic exhaust pipe, the barrel body, the cone and the dust collecting chamber are sequentially arranged from top to bottom and internally communicated, the air inlet is formed in the outer portion of the barrel body, air enters the barrel body from the tangential direction of the barrel body, the dust discharging valve is arranged below the dust collecting chamber, and the bottom frame is arranged below the dust collecting chamber. The telescopic exhaust pipe is arranged at the axis position of the barrel body, and an exhaust port extends out of the top end of the barrel body; the telescopic exhaust pipe comprises an outer pipe and an inner pipe, the outer pipe is sleeved outside the inner pipe and matched with the inner pipe through a spiral groove, a plurality of sliding rails are axially arranged on the periphery of the telescopic exhaust pipe in the barrel body, tenons are arranged on the lower portion of the inner pipe and matched with the sliding rails, and a rotating structure is arranged on the upper portion of the outer pipe to drive the outer pipe to rotate. The length of the exhaust pipe of the cyclone dust collector can be adjusted, so that the cyclone dust collector can adapt to dusty air flows with different working conditions and different dust contents.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, and in particular to a cyclone dust collector. Background Art

[0002] Cyclone dust collectors are widely used to separate solid and liquid particles from airflow, or solid particles from liquids. Cyclone dust collectors can be divided into tangential and axial types based on the direction of airflow. In a tangential-entry cyclone, when dust-laden gas enters the cyclone through a tangential inlet, the airflow changes from linear motion to circular motion. The swirling airflow spirals downward along the inner wall of the collector. Centrifugal force separates dust particles from the airflow and traps them on the wall. Gravity then forces them to fall into the dust collection chamber. When the majority of the swirling airflow reaches near the base of the cone, it begins to shift upward, with the central region rotating and rising before being discharged through the exhaust port.

[0003] Cyclone dust collectors have a relatively simple structure and are easy to manufacture, install, and maintain. Both investment and operating costs are very low, making them widely used in the industrial sector. The efficiency of a cyclone dust collector is affected by many factors, among which the insertion depth of the exhaust pipe has a significant impact on the dust removal efficiency of the cyclone dust collector. If the exhaust pipe is inserted too shallowly, the dust-laden airflow from the air inlet will directly enter the exhaust pipe, affecting dust removal efficiency. If the exhaust pipe is inserted too deep, the friction surface between the airflow and the pipe wall will increase, resulting in increased resistance losses. Furthermore, the distance between the exhaust pipe and the bottom of the cone is shortened, increasing the probability of dust re-mixing and discharge.

[0004] The insertion depth of the exhaust pipe of the existing cyclone dust collector cannot be adjusted, and there are strict requirements on the conditions such as the intake wind speed during the operation of the dust collector. The working range is narrow and the dust removal effect on the dust-laden airflow outside the design working conditions is poor. Utility Model Content

[0005] Therefore, the present invention proposes a cyclone dust collector to improve the deficiencies of the above existing technologies.

[0006] The technical solution of the utility model is as follows:

[0007] The exhaust pipe is connected to the exhaust pipe of the present invention and is connected to the exhaust pipe of the present invention on an outer surface of the retractable dust collector; the exhaust pipe has a round shank and a round shank, and the exhaust pipe has a round shank and a lower end thereof.

[0008] In a preferred embodiment, the slide rails are symmetrically arranged around the circumference of the retractable exhaust pipe. A slide groove is provided within the slide rails, and a roller is provided on the outside of the tenon, which moves within the slide groove. The slide rails restrict the rotation of the inner tube of the retractable exhaust pipe, forcing it to slide up and down. When the outer tube rotates, the inner tube, under the action of the spiral groove and the slide rails, can move up and down, thereby extending or shortening the exhaust pipe as a whole.

[0009] In a preferred embodiment, the rotating structure comprises a telescopic cylinder, a cylinder seat, and a torsion bar mounted on the upper, outer side of the telescopic exhaust pipe's outer tube. The cylinder seat is vertically mounted on the outer wall of the cylindrical top. One end of the telescopic cylinder is hinged to the cylinder seat, while the other end is hinged to the torsion bar. Rotation of the telescopic exhaust pipe's outer tube is driven by a hydraulic cylinder that can be extended or retracted and has a built-in locking function, providing flexible control and simple maintenance.

[0010] In a preferred embodiment, the rotating structure includes a gear, a ring gear, and an electric motor. The ring gear is mounted on the upper portion of the retractable exhaust pipe outer tube, and the gear is mounted at the output end of the motor. The gear and ring gear mesh with each other. The electric motor is fixed to the top of the cylindrical body and is a stepper motor with a brake. The stepper motor can control the rotation angle, which indirectly controls the extension length of the retractable exhaust pipe inner tube.

[0011] In a preferred embodiment, the ash collection chamber is cylindrical, and the ash discharge valve is a star-shaped ash discharge valve driven by a motor to discharge ash. The star-shaped ash discharge valve can be rotated to discharge ash while maintaining airtightness, and the operation of the dust collector is not affected during the ash discharge.

[0012] In a preferred embodiment, the cylindrical body is provided with an air guide vane, which is spirally shaped and coaxial with the cylindrical body. The air guide vane connects to the upper end of the air inlet and guides the air in a downward spiral. The spiral angle of the air guide vane is greater than 90 degrees and less than 180 degrees. The air guide vane can guide the incoming airflow in a downward spiral, thereby increasing the axial downward velocity of the airflow to a certain extent.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] The cyclone dust collector provided by the utility model, when in use, dust-laden airflow enters through the air inlet, enters a swirling state within the cylindrical body under the guidance of air guide blades, and is discharged through the exhaust port after passing through the outer vortex and the inner vortex. While dust removal is being performed, the length of the retractable exhaust pipe is adjusted according to the changes in parameters such as the inlet air flow rate and dust content to maintain high dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a front view structural diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cutaway structure of the present utility model;

[0019] Figure 4 It is a structural schematic diagram of a retractable exhaust pipe;

[0020] In the figure: 1. Cylinder body; 11. Air guide blades; 2. Cone; 3. Ash collecting chamber; 4. Ash discharge valve; 5. Base frame; 6. Air inlet; 71. Outer tube; 72. Torsion bar; 73. Inner tube; 74. Slide rail; 75. Spiral groove; 76. Tenon; 77. Roller; 81. Cylinder seat; 82. Telescopic cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 4As shown, this embodiment provides a cyclone dust collector, which includes an air inlet 6, a cylindrical body 1, a conical body 2, an ash collection chamber 3, an ash discharge valve 4, a base frame 5, and a retractable exhaust pipe. The cylindrical body 1, the conical body 2, and the ash collection chamber 3 are arranged sequentially from top to bottom and are internally interconnected. The air inlet 6 is located on the outside of the cylindrical body 1 and draws air into the cylindrical body 1 from a tangential direction. The ash discharge valve 4 is located below the ash collection chamber 3. The upper portion of the base frame 5 is connected to the cylindrical body 1 or the conical body 2, and the lower portion is located on the ground. In this embodiment, the upper portion of the base frame 5 is connected to the cylindrical body. The retractable exhaust pipe is arranged at the axial center position of the cylindrical body 1 and the exhaust port extends out of the top of the cylindrical body 1. The retractable exhaust pipe includes an outer tube 71 and an inner tube 73. The outer tube 71 is sleeved on the outer side of the inner tube 73 and the two are matched with a spiral groove 75. The upper diameter of the outer tube 71 is larger than the lower diameter. The upper part of the outer tube 71 sits on the cylindrical body 1 and the lower part extends into the cylindrical body 1.

[0023] Inside the cylindrical body 1, three slide rails 74 are axially arranged around the outer periphery of the telescopic exhaust pipe. More than three slide rails 74 are also possible. A latch 76 is provided at the bottom of the inner tube 73 to engage with the slide rails 74. A rotating structure is provided at the top of the outer tube 71 to drive the outer tube's rotation. The slide rails 74 are symmetrically arranged around the circumference of the telescopic exhaust pipe. Slide rails 74 are provided with grooves within them. Rollers 77 are provided outside the latches 76 of the inner tube 73 and move within the grooves of the slide rails 74.

[0024] In this embodiment, the rotational structure controlling the rotation of the outer tube 73 comprises a telescopic cylinder 82, a cylinder seat 81, and a torsion bar 72 disposed on the upper, outer side of the telescopic exhaust outer tube 73. The cylinder seat 81 is vertically disposed on the outer wall of the top of the cylindrical body 1. One end of the telescopic cylinder 82 is hingedly connected to the cylinder seat 81, and the other end is hingedly connected to the torsion bar 72.

[0025] Another preferred arrangement of the rotating structure (not shown in the figure) is that the rotating structure includes a gear, a ring gear and a motor, the ring gear is sleeved on the upper part of the telescopic exhaust pipe outer tube 71, the gear is arranged at the output end of the motor, the gear and the ring gear are engaged with each other, the motor is fixed on the top of the cylindrical body 1, and the motor uses a stepper motor with a brake.

[0026] Furthermore, the ash collection chamber 3 below the cone 2 is cylindrical, and the ash discharge valve 4 below the ash collection chamber 3 is a star-shaped ash discharge valve, driven by a motor. The cylindrical body 1 also includes an air guide vane 11 within it. This air guide vane 11 is spirally shaped and coaxial with the cylindrical body 1. The air guide vane 11 connects to the upper end of the air inlet and spirals downward to guide air. The spiral angle of the air guide vane 11 is preferably greater than 90 degrees and less than 180 degrees, and in this embodiment is 180 degrees.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cyclone dust collector, characterized by: The exhaust pipe is an air intake pipe having an outer cover, an inner cover, and an inner cover that is provided with a protruding conical structure. The exhaust pipe has an inner cover that is provided with a protruding conical structure and an inner cover that is provided with a protruding conical structure. The exhaust pipe has an outer cover that is provided with an inner cover, and an inner cover that is provided with a protruding conical structure.

2. The cyclone dust collector according to claim 1, characterized in that: The slide rails are symmetrically distributed around the circumference of the telescopic exhaust pipe, a slide groove is provided in the slide rail, and a roller is provided outside the tenon, and the roller moves in the slide groove.

3. The cyclone dust collector according to claim 2, characterized in that: The rotating structure includes a telescopic oil cylinder, a cylinder seat and a torsion bar arranged on the outer side of the upper part of the outer tube of the telescopic exhaust pipe. The cylinder seat is vertically arranged on the outer wall surface of the top of the cylindrical body. One end of the telescopic oil cylinder is hinged to the cylinder seat and the other end is hinged to the torsion bar.

4. The cyclone dust collector according to claim 2, characterized in that: The rotating structure includes a gear, a ring gear and an electric motor. The ring gear is sleeved on the upper part of the outer tube of the telescopic exhaust pipe. The gear is arranged at the output end of the electric motor. The gear and the ring gear are engaged with each other. The electric motor is fixed on the top of the cylindrical body. The electric motor is a stepping motor with a brake.

5. The cyclone dust collector according to claim 3 or 4, characterized in that: The ash collecting chamber is in a cylindrical shape, the ash discharge valve is a star-shaped ash discharge valve, and the ash discharge valve is driven by an electric motor to discharge ash.

6. The cyclone dust collector according to claim 5, characterized in that: The cylindrical body is provided with an air guide blade, which is spirally shaped and coaxial with the cylindrical body. The air guide blade is connected to the upper end of the air inlet and spirally guides the air downward. The spiral angle of the air guide blade is greater than 90 degrees and less than 180 degrees.

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