A cyclone dust collector

Abstract

The present application discloses a cyclone dust collector, including a shell, a dust removal structure and an ash removal device; the dust removal device includes an air inlet, a central tube, a spiral guide track, and a side air duct; the shell is arranged to form a dust removal chamber, the bottom of the dust removal chamber is connected with an ash removal device, and the central tube extends from the dust removal chamber through the shell to the outside; a spiral guide track is processed between the outer wall and the inner wall of the shell, and a side air duct is connected at the outlet of the central tube, so that part of the exhaust gas after a treatment can be injected into the spiral guide track. The cyclone dust collector of the present application can reduce the dust accumulation on the inner wall of the dust removal chamber during use and avoid dust leakage during the process of processing the collected dust, reduce the cleaning frequency of the cyclone dust collector, and reduce environmental pollution.

Description

Technical Field

[0001] The invention relates to the field of sludge reduction incineration tail gas treatment, and in particular to a cyclone dust collector. Background Art

[0002] With the rapid development of economy and the improvement of people's living standards, the amount of sludge generated is increasing. It is particularly necessary to treat sludge reasonably, effectively, economically and environmentally friendly. Sludge incineration is an effective way to treat sludge. The tail gas produced has the characteristics of large dust emission, high water content and complex composition. In the tail gas treatment, the step of removing dry dust must be added. Cyclone dust collector is a device that uses the centrifugal force generated by the rotation of dust-containing airflow to separate and capture dust particles from the gas. Compared with other dust collectors, cyclone dust collector has the characteristics of simple structure, no moving parts, low cost, high dust removal efficiency, convenient maintenance and management, and wide application. It is mainly used to capture non-sticky, non-fibrous dry dust particles above 5-10μm.

[0003] In the prior art, dust particles will accumulate on the inner wall of the cyclone dust collector during operation, which will weaken the separation effect and require frequent cleaning. Since the main body of the cyclone dust collector generally adopts an integrated structure, it is troublesome to clean the inner wall. When the discharge hopper is taken out after dust removal, dust may be scattered into the air to cause pollution, and at the same time, it is harmful to the health of the operator. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a cyclone dust collector to solve the problem of dust accumulation on the inner wall of the cyclone dust collector causing reduced dust removal effect and dust leakage during dust unloading.

[0005] To achieve the above object, the present application is implemented by the following scheme: A cyclone dust collector, including a shell, a dust removal structure and an ash unloading device, wherein the dust removal structure includes an air inlet, a central tube, a spiral guide track, and a side air duct, characterized in that:

[0006] The housing is used to enclose a dust removal chamber and is the basis for the dust removal structure and the dust removal device;

[0007] A dust removal structure is located inside the shell and is used to remove dust particles from the gas entering through the air inlet. Part of the exhaust gas after dust removal is discharged into the atmosphere through the central pipe, and part of the exhaust gas is re-injected into the shell through the bypass air duct to remove dust from the inner wall;

[0008] The dust unloading device is located downstream of the dust removal structure and is used to collect the dust separated by the dust removal structure. When the collected dust reaches a certain amount, the dust unloading operation is performed without stopping the machine.

[0009] Furthermore, the shell is configured to form a dust removal chamber, and a dust removal device is connected to the bottom of the dust removal chamber, and the central tube extends from the inside of the dust removal chamber through the shell to the outside, and a spiral guide track is provided between the outer wall and the inner wall of the shell, and the spiral guide track spirals downward with the center line of the central tube as the center line, and the track cross-section is rectangular, one side of which is opened to directly contact the dust removal chamber; the air inlet is tangent to the shell, and the cross-section of the air inlet is rectangular.

[0010] Furthermore, the portion of the central tube located outside the shell is connected to a side air duct, and the side air duct can deliver the exhaust gas after one treatment into the spiral guide track, and then the gas enters the dust removal chamber from the spiral guide track.

[0011] Furthermore, a filter screen and a louver air outlet are provided between the spiral guide track and the dust removal chamber, a ventilation butterfly valve is provided in the side air duct, a wind speed measuring instrument is installed at the air inlet, and the surface of the louver air outlet is coated with anti-static material.

[0012] Furthermore, the anemometer can measure the wind speed entering the air inlet in real time. After calculation through a specific calculation model, the computer adjusts the angle between the louver air outlet and the ventilation butterfly valve in real time to control the speed and angle of gas discharged from the spiral guide track to the dust removal chamber.

[0013] Furthermore, the dust unloading device includes a box body, a movable bracket, a trolley, and a door panel. The box body is open forward, the top plate of the box body is connected to the shell body, and has a dust inlet that matches the size of the inner wall of the shell body, upper pulley tracks are provided on the side walls on both sides, and a lower pulley track is provided on the bottom plate; the movable bracket is in the shape of a rectangular parallelepiped, and an L-shaped track is provided near the top plate of the box body and the open side, and a lower pulley and an upper pulley are installed on the side near the inner wall of the box body, two movable brackets are installed in the box body, and are symmetrically installed with respect to the surface parallel to the side of the box body passing through the center line of the central tube, and the material of the movable bracket can be stainless steel or other high-temperature resistant materials; the main body of the trolley is a box body that opens upward, four pulleys are installed at the bottom, and through grooves are provided vertically on the front and back faces.

[0014] Furthermore, the door panel is composed of an upper baffle, a lower baffle and an electromagnetic plate, two pulleys are respectively installed on the left and right sides of the upper baffle, the electromagnetic plate is fixed to the upper baffle by a threaded connection, an electromagnet is provided in the electromagnetic plate, a magnet is provided in the central area of ​​the lower baffle and adsorbed on the electromagnetic plate; a control circuit of the electromagnet in the electromagnetic plate is arranged inside the upper baffle, a switch slot is provided on the end face of the upper baffle, a circuit switch is provided in the slot, the circuit switch can control the opening and closing of the electromagnet circuit, when the circuit switch is closed, the circuit of the electromagnet can be disconnected and the electromagnet loses its magnetism, when disconnected, the circuit of the electromagnet can be closed and the electromagnet gains its magnetism.

[0015] Furthermore, the upper pulley of the movable bracket cooperates with the upper pulley track on the side wall of the box body, the lower pulley of the movable bracket cooperates with the lower pulley track on the wall panel of the box body, and a limit block is arranged in the lower pulley track.

[0016] Furthermore, the pulley on the side of the upper baffle cooperates with the L-shaped track on the movable bracket, and the two pulleys on one side move in the two tracks of the L-shaped track respectively, so that the upper baffle can move from perpendicular to the bottom surface to parallel to the bottom surface and then parallel to the bottom surface.

[0017] Furthermore, the cross-section of the upper baffle is the same size as the box opening, and the vertical cross-section of the combination of the electromagnetic plate and the lower baffle is the same size as the cross-section of the through slot.

[0018] Furthermore, a dust scraper is provided on the top plate of the box body, and the dust scraper can scrape off the dust on the upper baffle when the door panel moves parallel to the horizontal plane.

[0019] Beneficial results of the present invention:

[0020] The cyclone dust collector of the present application is characterized by: a shell, which is used to enclose a dust removal chamber and is the basis for the existence of a dust removal structure and an ash unloading device; the dust removal structure is used to remove dust particles in the gas entering from the air inlet, and then discharge part of the exhaust gas after dust removal into the atmosphere through a central pipe, and re-inject part of the exhaust gas into the shell for repeated utilization; the ash unloading device is located downstream of the dust removal structure, collects dust separated by the dust removal structure, and performs manual ash unloading operations when the collected amount reaches a certain amount.

[0021] Specifically, the advantages of this application are reflected in the following aspects:

[0022] (1) The exhaust gas after one treatment is re-injected into the spiral guide track through the bypass air duct, and the speed and direction of the gas discharged from the spiral guide track to the dust removal chamber are controlled by the ventilation butterfly valve and the louver air outlet, so that the dust separated by the untreated exhaust gas entering from the air inlet after centrifugation loses radial velocity under the action of the gas discharged from the louver air outlet and moves downward, thereby avoiding the accumulation of dust on the inner wall of the dust removal chamber. The adjustable wind speed and direction can also prevent the gas discharged from the spiral guide track from blowing the dust back to the exhaust direction, thereby resulting in poor dust removal effect.

[0023] (2) Through the combination of the box body, the movable bracket, the trolley and the door panel, a device is formed that can be adjusted to close the top surface of the trolley to prevent dust from flying when the collected dust is transported, thereby protecting the environment and the health of the workers. At the same time, this device can meet the requirements of dust unloading operations without stopping the machine.

[0024] (3) Reduce the labor costs caused by the need to frequently clean the cyclone dust collector and the losses caused by equipment downtime due to the need to clean the machine, thereby improving the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 This is a partial enlarged view of point A;

[0027] Figure 3 This is an axonometric view of the ash unloading device;

[0028] Figure 4 This is the axonometric view of the door panel;

[0029] Figure 5 This is the axonometric drawing of the box;

[0030] Figure 6 This is the axonometric drawing of the trolley;

[0031] Figure 7 This is a front view of the ash unloading device;

[0032] Figure 8 It is a side view of the ash unloading device;

[0033] In the figure, 1, central tube; 2, side air duct; 3, ventilation butterfly valve; 4, shell; 5, air inlet; 6, spiral guide track; 7, bracket; 8, dust removal device; 9, dust removal chamber; 10, shutter air outlet; 11, filter screen;

[0034] 81. Box body; 82. Pulley; 83. Movable bracket; 84. L-shaped track; 85. Upper baffle; 86. Electromagnetic plate; 87. Lower baffle; 88. Door panel; 89. Trolley; 810. Circuit switch; 811. Through groove; 812. Scraper; 813. Upper pulley; 814. Lower pulley; 815. Lower pulley track; 816. Upper pulley track; 817. Limit block; 818. Switch slot; 819. Protective cover; 820. Dust inlet. DETAILED DESCRIPTION

[0035] The present application is described in detail below, and examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. In addition, if the detailed description of the known technology is unnecessary for the features of the present application shown, it will be omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be interpreted as limiting the present application.

[0036] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with those in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0037] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "an" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0038] like Figure 1-8As shown, the present invention discloses a cyclone dust collector, including a shell 4, a dust removal structure and an ash unloading device 8, the dust removal structure including an air inlet 5, a central tube 1, a spiral guide track 6 and a side air duct 2, and is characterized in that: the shell 4 is used to enclose a dust removal chamber 9, which is the basis for the existence of the dust removal structure and the ash unloading device 8; the dust removal structure is located inside the shell 4, and is used to remove dust particles in the gas entering through the air inlet 5, and part of the exhaust gas after dust removal is discharged into the atmosphere through the central tube 1, and part of the exhaust gas is re-injected into the shell 4 through the side air duct 2 to remove dust from the inner wall; the ash unloading device 8 is located downstream of the dust removal structure, collects dust separated by the dust removal structure, and performs a non-stop ash unloading operation when the collected dust reaches a certain amount.

[0039] Specifically, the shell 4 is arranged to enclose a dust removal chamber 9, and a dust removal device 8 is connected to the bottom of the dust removal chamber 9. The central tube 1 extends from the inside of the dust removal chamber 9 to the outside through the shell 4. A spiral guide track 6 is processed between the outer wall and the inner wall of the shell 4. The spiral guide track 6 spirals downward with the center line of the central tube 1 as the center line. The track cross-section is rectangular, and one side is opened to directly contact the dust removal chamber 9; the air inlet 5 is tangent to the shell 4, and the cross-section of the air inlet 5 is rectangular.

[0040] Specifically, the portion of the central tube 1 located outside the shell 4 is connected to a bypass air duct 2, and the bypass air duct 2 can deliver the exhaust gas after a treatment into the spiral guide track 6, and then the gas enters the dust removal chamber 9 from the spiral guide track 6.

[0041] Specifically, a filter screen 11 and a louver air outlet 10 are provided between the spiral guide track 6 and the dust removal chamber 9, a ventilation butterfly valve 3 is provided in the bypass air duct 2, a wind speed measuring instrument is installed at the air inlet 5, and the surface of the louver air outlet 10 is coated with anti-static material.

[0042] Specifically, the anemometer can measure the wind speed entering the air inlet 5 in real time. After calculation through a specific calculation model, the computer adjusts the angle between the louver air outlet 5 and the ventilation butterfly valve 3 in real time to control the speed and angle of gas discharged from the spiral guide track 6 to the dust removal chamber 9.

[0043] Specifically, the dust unloading device includes a box body 81, a movable bracket 83, a trolley 89, and a door panel 88. The box body 81 is open forward, the top plate of the box body is connected to the shell body 4, and has a dust inlet 820 that matches the size of the inner wall of the shell body 4, upper pulley tracks 816 are provided on the side walls on both sides, and a lower pulley track 815 is provided on the bottom plate; the movable bracket 83 is in the shape of a rectangular parallelepiped, and an L-shaped track is provided near the top plate and the open side of the box body 81, and a lower pulley 814 and an upper pulley 813 are installed on the side near the inner wall of the box body 81. Two movable brackets 83 are installed in the box body 81, and are symmetrically installed about the surface parallel to the side of the box body 81 passing through the center line of the central tube 1; the main body of the trolley 89 is a box body 81 that is open upward, four pulleys are installed at the bottom, and through grooves 811 are provided vertically on the front and back faces.

[0044] Specifically, the door panel 88 is composed of an upper baffle 85, a lower baffle 87 and an electromagnetic plate 86. Two pulleys are respectively installed on the left and right sides of the upper baffle 85. The electromagnetic plate is fixed to the upper baffle by a threaded connection. An electromagnet is arranged in the electromagnetic plate 86. A magnet is arranged in the central area of ​​the lower baffle 87 and adsorbed on the electromagnetic plate 86. The control circuit of the electromagnet in the electromagnetic plate 86 is arranged inside the upper baffle 85. A switch groove 818 is arranged on the end surface of the upper baffle 85. A circuit switch 810 is arranged in the groove. The circuit switch 810 can control the opening and closing of the electromagnet circuit. When the circuit switch is closed, the circuit of the electromagnet can be disconnected, and the electromagnet loses its magnetism. When the circuit switch is disconnected, the circuit of the electromagnet can be closed, and the electromagnet gains its magnetism.

[0045] Specifically, the upper pulley 813 of the movable bracket 83 cooperates with the upper pulley track 816 on the side wall of the box body 81 , and the lower pulley 814 of the movable bracket 83 cooperates with the lower pulley track 815 on the wall panel of the box body 81 , and a limiting block 817 is set in the lower pulley track 815 .

[0046] Specifically, the pulley 82 on the side of the upper baffle 85 cooperates with the L-shaped track 84 on the movable bracket 83, and the two pulleys 82 on one side move in the two tracks of the L-shaped track 84 respectively. The upper baffle 85 can realize horizontal movement from perpendicular to the bottom surface to parallel to the bottom surface.

[0047] Specifically, the cross-section of the upper baffle 85 is the same size as the opening of the box body 81 , and the vertical cross-section of the combination of the electromagnetic plate 86 and the lower baffle 87 is the same size as the cross-section of the through slot 811 .

[0048] Specifically, a dust scraper 812 is disposed on the top plate of the box body 81, and the dust scraper 812 can scrape off the dust on the upper baffle 85 when the door panel 88 moves parallel to the horizontal plane.

[0049] Working principle: Dust-containing exhaust gas enters the dust removal chamber 9 through the air inlet 5. After entering the dust removal chamber 9, the exhaust gas rotates. Under the action of centrifugal force, the dust flies to the inner wall of the dust removal chamber 9 through centrifugal motion. The exhaust gas after dust removal is discharged through the central tube 1, and part of the exhaust gas enters the spiral guide track 6 through the side air duct 2. The side air duct 2 is provided with a ventilation butterfly valve 3, which can control the flow rate of the exhaust gas passing through. When the exhaust gas moves in the spiral track guide channel 6, it is discharged into the dust removal chamber 9 through the filter screen 11 and the louver air outlet 10. The angle of the exhaust gas discharged into the dust removal chamber 9 can be controlled by adjusting the angle of the louver air outlet 10, so that the radial velocity of the dust moving toward the inner wall of the dust removal chamber 9 is reduced or even reduced to 0 after being affected by the exhaust gas discharged from the spiral guide track 6, thereby reducing the amount of dust colliding with the inner wall of the dust removal chamber 9, thereby reducing the accumulation of dust on the inner wall of the dust removal chamber 9. In order to prevent the dust from moving toward the center due to the inappropriate air volume and angle discharged from the spiral guide track 6, thereby reducing the dust removal effect, a wind speed measuring instrument is installed at the air inlet 5 to measure the wind speed of the untreated dust-containing exhaust gas when it enters the air inlet 5. The centrifugal force exerted on the dust can be calculated by substituting the wind speed into a specific model. According to the calculation results, the ventilation butterfly valve 3 and the louver air outlet 10 are automatically adjusted by computer control to prevent the centrifugal dust from moving toward the center tube 1.

[0050] After the equipment has been working for a period of time, the dust in the exhaust gas is collected in the trolley 89, and the dust unloading operation is required. The door panel 88 is pulled out through the handle on the door panel 88, driving the movable bracket 83 to move outward, the upper pulley 813 on the movable bracket 83 moves in the upper pulley track 816 of the box body 81, and the lower pulley 814 on the movable bracket 83 moves in the lower pulley track 815 of the box body 81. When the movable bracket 83 moves outward to a certain distance, the lower pulley 815 is affected by the limit block 817 in the lower pulley track 815, and the movable bracket 83 stops moving. At this time, the door panel 88 is lifted, and the pulley 82 on the door panel 88 moves in the L-shaped track 84 on the movable bracket 83. The door panel 88 moves from a state perpendicular to the horizontal plane to a state parallel to the horizontal plane. At this time, the door panel 88 is pushed inward to move, and the door panel 88 moves in the horizontal direction. When the door panel 88 moves in the horizontal direction and cannot move, the movable bracket 83 is pushed inward. The door plate 88 moves inward with the movable bracket 83, and the lower baffle 87 moves inward through the through slot 811 on the trolley 89. When the movable bracket 83 moves inward to the original position, the circuit switch 810 in the switch slot 818 is closed, the circuit of the electromagnet in the electromagnetic plate 86 is disconnected, the electromagnet loses its magnetism, and the connection between the lower baffle 87 and the electromagnetic plate 86 is disconnected. At this time, the trolley 89 is pulled out, the lower baffle 87 is fixed by the through slot 811 on the trolley 89, and the upper opening of the trolley 89 is closed. When the trolley 89 moves, the dust collected in the trolley 89 can be prevented from leaking out. The upper baffle 85 is fixed on the movable bracket 83, closing the dust removal chamber 9 to prevent dust from falling from the dust removal chamber 9 and causing dust leakage. After the trolley 89 is pulled to a specific place and the dust inside is processed, it is transported back to the box body 81, and the movable bracket 83 is pulled outward to disconnect the circuit switch 810. The electromagnet in the electromagnetic plate 86 regains magnetism, and the electromagnetic plate 86 is fixed to the lower baffle 87, so that the lower baffle 87 is driven to move by the movement of the movable bracket 83. The upper baffle 85 is affected by the dust scraper 812 during the outward movement, and the dust on the upper baffle 85 is scraped into the trolley 89. When the movable bracket 83 moves outward to the end point, the door panel 88 is pulled to move the door panel 88 from a state parallel to the horizontal plane to a state perpendicular to the horizontal plane, and the movable bracket 83 is pushed inward to reset the movable bracket 83, and the dust unloading device 8 returns to the starting state. In the whole process, the dust unloading can be completed without stopping the cyclone dust collector.

[0051] Beneficial effects of using the above device and method:

[0052] (1) The exhaust gas after one treatment is re-injected into the spiral guide track through the bypass air duct, and the speed and direction of the gas discharged from the spiral guide track to the dust removal chamber are controlled by the ventilation butterfly valve and the louver air outlet, so that the dust separated by the untreated exhaust gas entering from the air inlet after centrifugation loses radial speed under the action of the gas discharged from the louver air outlet and moves downward, thereby avoiding the accumulation of dust on the inner wall of the dust removal chamber. The adjustable wind speed and direction can also prevent the gas discharged from the spiral guide track from blowing the dust back to the exhaust direction, thereby resulting in poor dust removal effect.

[0053] (2) Through the combination of the box body, the movable bracket, the trolley and the door panel, a device is formed that can be adjusted to close the top surface of the trolley to prevent dust from flying when the collected dust is transported, thereby protecting the environment and the health of the workers. At the same time, the dust unloading work of the device can be carried out without stopping the machine.

[0054] (3) Reduce the labor costs caused by the need to frequently clean the cyclone dust collector and the losses caused by equipment downtime due to the need to clean the machine, thereby improving the economic benefits of the enterprise.

[0055] Those skilled in the art will appreciate that, in the description of the present application, it is necessary to understand that the terms “center”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0059] The above description is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A cyclone dust collector, comprising a housing, a dust removal structure and a dust removal device, wherein the dust removal structure comprises an air inlet, a central tube, a spiral guide track and a side air duct, and is characterized in that: The housing is used to enclose a dust removal chamber and is the basis for the dust removal structure and the dust removal device; A dust removal structure is located inside the shell and is used to remove dust particles from the gas entering through the air inlet. Part of the exhaust gas after dust removal is discharged into the atmosphere through the central pipe, and part of the exhaust gas is re-injected into the shell through the bypass air duct to remove dust from the inner wall; A dust unloading device, located downstream of the dust removal structure, is used to collect the dust separated by the dust removal structure, and when the collected dust reaches a certain amount, the dust unloading operation is performed without stopping the machine; The dust unloading device comprises a box body, a movable bracket, a trolley, and a door panel. The box body is open forward, the top plate of the box body is connected to the shell body, and has a dust inlet matching the size of the inner wall of the shell body, upper pulley tracks are provided on the side walls on both sides, and a lower pulley track is provided on the bottom plate; the movable bracket is in the shape of a rectangular parallelepiped, and an L-shaped track is provided near the top plate and the open side of the box body, and a lower pulley and an upper pulley are installed on the side near the inner wall of the box body, and two movable brackets are installed in the box body, and are symmetrically installed with respect to the surface parallel to the side of the box body through the center line of the central tube; the main body of the trolley is a box body opening upward, and four pulleys are installed at the bottom, vertically The front and rear surfaces are provided with through grooves; the door panel is composed of an upper baffle, a lower baffle and an electromagnetic plate, two pulleys are respectively installed on the left and right sides of the upper baffle, the electromagnetic plate is fixed to the upper baffle by a threaded connection, an electromagnet is arranged in the electromagnetic plate, a magnet is arranged in the central area of ​​the lower baffle, and is adsorbed on the electromagnetic plate; the control circuit of the electromagnet in the electromagnetic plate is arranged inside the upper baffle, a switch groove is arranged on the end surface of the upper baffle, a circuit switch is arranged in the groove, the circuit switch can control the opening and closing of the electromagnet circuit, when the circuit switch is closed, the circuit of the electromagnet can be disconnected, and the electromagnet loses its magnetism, when it is disconnected, the circuit of the electromagnet can be closed, and the electromagnet gains its magnetism; The upper pulley of the movable bracket cooperates with the upper pulley track on the side wall of the box body, and the lower pulley of the movable bracket cooperates with the lower pulley track on the bottom plate of the box body, and a limit block is arranged in the lower pulley track; The pulley on the side of the upper baffle cooperates with the L-shaped track on the movable bracket, and the two pulleys on one side move in the two tracks of the L-shaped track respectively, so that the upper baffle can move from perpendicular to the bottom surface to parallel to the bottom surface and then parallel to the bottom surface; The cross section of the upper baffle is the same size as the box opening, and the vertical section of the combination of the electromagnetic plate and the lower baffle is the same size as the cross section of the through slot.

2. A cyclone dust collector according to claim 1, characterized in that: The shell is arranged to form a dust removal chamber, and a dust removal device is connected to the bottom of the dust removal chamber. The central tube extends from the inside of the dust removal chamber through the shell to the outside. A spiral guide track is arranged between the outer wall and the inner wall of the shell. The spiral guide track spirals downward with the center line of the central tube as the center line. The track cross-section is rectangular, and one side is opened to directly contact the dust removal chamber. The air inlet is tangent to the shell, and the cross-section of the air inlet is rectangular.

3. A cyclone dust collector according to claim 2, characterized in that: The portion of the central tube located outside the shell is connected to a side air duct, and the side air duct can deliver the exhaust gas after a treatment into the spiral guide track, and then the gas enters the dust removal chamber from the spiral guide track.

4. A cyclone dust collector according to claim 3, characterized in that: A filter screen and a louver air outlet are arranged between the spiral guide track and the dust removal chamber, a ventilation butterfly valve is arranged in the side air duct, a wind speed measuring instrument is installed at the air inlet, and the surface of the louver air outlet is coated with antistatic material.

5. A cyclone dust collector according to claim 4, characterized in that: The anemometer can measure the wind speed entering the air inlet in real time. After calculation by a specific calculation model, the computer adjusts the angle between the louver air outlet and the ventilation butterfly valve in real time to control the speed and angle of gas discharged from the spiral guide track to the dust removal chamber.

6. A cyclone dust collector according to claim 1, characterized in that: The top plate of the box body is provided with a dust scraper, and the dust scraper can scrape off the dust on the upper baffle when the door panel moves parallel to the horizontal plane.

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