Explosion-proof cyclone filter cartridge dust removal equipment

Abstract

The utility model relates to the technical field of dust treatment, in particular to explosion-proof cyclone filter cartridge dust removal equipment. The explosion-proof cyclone filter cartridge dust removal equipment comprises a cyclone dust remover and a filter cartridge dust remover, a first ash discharge port is formed in the lower end of the cyclone dust remover, a discharger is connected to the ash discharge port, a gas outlet of the cyclone dust remover is connected with a gas inlet in the side end of the filter cartridge dust remover through a pipeline, and a gas outlet of the cyclone dust remover is connected with a gas outlet in the side end of the filter cartridge dust remover through a pipeline. A second ash discharge port is formed in the lower end of the filter cartridge dust remover, and the filter cartridge dust remover is provided with an anti-explosion structure. The dust collector has the advantages that the structural design is simple and reasonable, the treatment means of combining cyclone dust collection and filter cartridge dust collection is adopted, the dust collector can adapt to dust treatment of dust particles with large dust concentration fluctuation, large particle size and protrusion, the dust treatment of different industries is realized, the filtering precision is high, and the anti-explosion safety is better.

Description

Technical Field

[0001] The utility model relates to the technical field of dust treatment, in particular to an explosion-proof cyclone filter cartridge dust removal device. Background Art

[0002] In the existing technology, single cyclone dust collector, wet dust collector, filter bag dust collector, and filter cartridge dust collector are usually used. However, the use of a single dust removal device has certain limitations, such as low processing efficiency and high operation and maintenance costs, and cannot be applied to complex working conditions (for example: cyclone dust collector is suitable for capturing dust particles with a particle size of 5μm or more, wet dust collector is suitable for capturing dust particles with a particle size of 1μm or more, and filter bag and filter cartridge dust collectors have a short service life for processing large particle sizes and protruding dust particles); and current technology cannot meet the treatment needs of explosive dust.

[0003] Based on this, it is necessary to develop an explosion-proof cyclone filter cartridge dust removal equipment to meet the current needs of handling explosion-related dust. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an explosion-proof cyclone filter cartridge dust removal device, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] An explosion-proof cyclone filter cartridge dust removal equipment includes a cyclone dust collector and a filter cartridge dust collector. The lower end of the cyclone dust collector is provided with a first dust discharge port, and the above-mentioned dust discharge port is connected to a discharger. The gas outlet of the cyclone dust collector is connected to the air inlet at the side end of the above-mentioned filter cartridge dust collector through a pipeline. The lower end of the above-mentioned filter cartridge dust collector is provided with a second dust discharge port, and the above-mentioned filter cartridge dust collector is provided with an explosion-proof structure.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, it also includes a first aggregate trolley, which is arranged below the above-mentioned discharger.

[0009] Furthermore, it also includes a base, and the cyclone dust collector and the cartridge dust collector are respectively installed on the upper end of the base.

[0010] Furthermore, the above-mentioned cyclone dust collector includes a cylinder, the upper half of the above-mentioned cylinder is a cylinder, and the lower half is a conical cylinder. The side wall of the upper half of the above-mentioned cylinder is provided with an inlet entering along its tangential direction. The top of the above-mentioned cylinder is coaxially provided with an exhaust pipe extending downward. The upper end of the above-mentioned exhaust pipe forms a gas outlet, and a reflux zone is formed between the above-mentioned exhaust pipe and the side wall of the upper half of the above-mentioned cylinder.

[0011] Furthermore, the above-mentioned discharger is an air-locking type discharger, and the motor of the air-locking type discharger is an explosion-proof motor.

[0012] Furthermore, the above-mentioned cartridge dust collector includes a cartridge housing, a partition is provided in the middle area of the cartridge housing, a cartridge assembly is installed at the lower end of the partition, an exhaust fan is provided above the partition, an exhaust port is provided at the top of the cartridge housing, an ash hopper is provided at the bottom, the above-mentioned second ash port is provided at the bottom of the ash hopper, an explosion vent is provided on the lower side wall of the cartridge housing, a flameless pressure relief device is installed at the explosion vent, and the flameless pressure relief device constitutes the above-mentioned explosion-proof structure.

[0013] Furthermore, the motor of the exhaust fan is an explosion-proof motor.

[0014] Furthermore, a second aggregate trolley is provided below the second ash outlet.

[0015] Furthermore, the second dust outlet is connected to the inner cavity or inlet of the cyclone dust collector through a self-priming return pipeline.

[0016] Furthermore, it also includes an explosion-proof electric control box, which is installed outside the above-mentioned filter cartridge dust collector and is connected to the electrical components in the above-mentioned cyclone dust collector and the filter cartridge dust collector respectively.

[0017] The beneficial effects of the utility model are: simple and reasonable structural design, the use of a cyclone dust removal + filter cartridge dust removal combined treatment method, can adapt to large fluctuations in dust concentration, large particle size and protruding dust particles, dust treatment in different industries, high filtration accuracy, good explosion-proof safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the explosion-proof cyclone filter cartridge dust removal equipment of the present utility model;

[0019] Figure 2 This is a schematic structural diagram of another embodiment of the explosion-proof cyclone filter cartridge dust removal equipment of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the cyclone dust collector in the explosion-proof cyclone filter cartridge dust removal equipment of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall internal structure of the cyclone dust collector in the explosion-proof cyclone filter cartridge dust removal equipment of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1. Cyclone dust collector; 2. Cartridge dust collector; 3. Discharger; 4. First collecting trolley; 5. Second collecting trolley; 6. Self-priming return line; 7. Base; 11. Cylinder; 12. Exhaust pipe; 21. Cartridge housing; 22. Flameless pressure relief device; 111. Inlet; 112. Return zone. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] Example: Figure 1 、 2 As shown in Figures 3 and 4, the explosion-proof cyclone filter cartridge dust removal equipment of this embodiment includes a cyclone dust collector 1 and a filter cartridge dust collector 2. The lower end of the cyclone dust collector 1 is provided with a first dust discharge port, and the above-mentioned ash discharge port is connected to a discharger 3. The gas outlet of the above-mentioned cyclone dust collector 1 is connected to the air inlet at the side end of the above-mentioned filter cartridge dust collector 2 through a pipeline. The lower end of the above-mentioned filter cartridge dust collector 2 is provided with a second dust discharge port, and the above-mentioned filter cartridge dust collector 2 is provided with an explosion-proof structure.

[0026] During the processing process of the explosion-proof cyclone filter cartridge dust removal equipment of this embodiment, the dust-containing gas first enters the cyclone dust collector 1 to use centrifugal force to perform cyclone dust removal processing, and then enters the filter cartridge dust collector 2 for filtration and dust removal. The dust is collected during the processing process. The overall structural design is simple and reasonable. The treatment method of combining cyclone dust removal + filter cartridge dust removal is adopted, which can adapt to the treatment of large fluctuations in dust concentration, large particle size and protruding dust particles, and dust from different industries. It has high filtration accuracy and good explosion-proof safety.

[0027] As a preferred embodiment, it further includes a first material collecting trolley 4 , which is arranged below the discharger 3 .

[0028] In the above embodiment, the first collection trolley 4 includes a container body and a running mechanism (such as running wheels) disposed at the bottom of the container body. The top of the container body is open. During collection, it docks with the discharger 3 at the bottom of the cyclone dust collector 1 to collect dust. The remaining gas and some of the dust contained in it are then filtered in the cartridge dust collector 2. The dust is then collected at the second ash outlet. After collection is completed, the first collection trolley 4 is moved to the target location for subsequent processing, which is relatively convenient to operate.

[0029] As a preferred embodiment, it further includes a base 7 , and the cyclone dust collector 1 and the cartridge dust collector 2 are respectively installed on the upper end of the base 7 .

[0030] In the above embodiment, the cyclone dust collector 1 and the cartridge dust collector 2 are integrated and installed on the same base 7, so that the entire dust collector becomes an integral device. A walking mechanism can be set at the lower end of the base 7 to facilitate overall movement, which is convenient for transportation and installation.

[0031] As a preferred embodiment, Figure 3 As described above, the cyclone dust collector 1 includes a cylinder 11, the upper half of the cylinder 11 is a cylinder, and the lower half is a conical cylinder (indicated by c in the figure). The side wall of the upper half of the cylinder 11 is provided with an inlet 111 entering along its tangential direction, and the top of the cylinder 11 is coaxially provided with an exhaust pipe 12 extending downward, and the upper end of the exhaust pipe 12 forms a gas outlet, and a reflux zone 112 is formed between the exhaust pipe 12 and the side wall of the upper half of the cylinder 11.

[0032] In the above embodiment, during operation, when the dust-laden gas enters the interior of the cylinder 11 through the air inlet 111 in a tangential direction, the airflow changes from linear motion to circular motion, and the vast majority of the rotating airflow flows downward in a spiral along the inner wall of the cylinder 11 toward the cone, which is usually called an outward rotating airflow (denoted by a in the figure). The dust-laden gas generates centrifugal force during the rotation process, which throws dust particles with a relative density greater than that of the gas toward the wall of the cylinder 11. Once the dust particles come into contact with the wall of the cylinder 11, they lose their radial inertial force and fall along the wall due to downward momentum and gravity, entering the first ash outlet. When the rotating and descending outward rotating airflow reaches the cone, it moves closer to the center due to the contraction of the cone. According to the principle of constant torque, its tangential velocity continues to increase, and the centrifugal force on the dust particles continues to increase. When the airflow reaches a certain position at the lower end of the cone, it reverses from the bottom to the top from the middle of the cone in the same direction of rotation, and continues to make spiral motion, forming an inward rotating airflow (denoted by b in the figure). Finally, the purified gas is discharged through exhaust pipe 12, along with a small portion of uncaptured dust particles. Simultaneously, another small portion of gas flowing in from inlet 111 flows toward the top of cylinder 11, then flows downward along the outside of exhaust pipe 12, forming a secondary flow (indicated by d in the figure). Upon reaching the lower end of exhaust pipe 12, it reverses and flows upward, exiting exhaust pipe 12 along with the rising, inwardly rotating airflow. Dust particles dispersed in this portion of the airflow are also carried away. The overall design is relatively rational and enables effective dust treatment.

[0033] It should be noted that the cyclone dust collector 1 utilizes the centrifugal force generated by a rotating airflow (a force generated by a rotating object, away from the center of rotation. Centrifugal force is a manifestation of inertia and does not actually exist). For an object to move in a circular motion, it must be subject to a force directed toward the center of the circle, known as the centripetal force. If coordinates are established with this object as the origin, it appears as if a force of equal magnitude but opposite direction to the centripetal force is acting, causing the object to move away from the center of the circular motion. (When the force acting on the object is insufficient to provide the centripetal force required for circular motion, the centrifugal force appears to be greater than the centripetal force, causing the object to move away from the center of the circle. This phenomenon is called "centrifugal force") to separate dust particles from the dust-laden airflow. It features a simple structure, a compact size, requires no special ancillary equipment, and is inexpensive. It also has moderate resistance, no moving parts, and is easy to operate and maintain. The cyclone dust collector 1 is generally used to capture particles larger than 5-15 microns, achieving a dust removal efficiency exceeding 80%. However, its efficiency is limited for particles smaller than 5 microns.

[0034] In this embodiment, the above-mentioned unloader 3 is an air-locking unloader. An air-locking unloader is adopted, and the unloader structure includes a rotor impeller with several blades, a shell, a seal, a reducer, an electric motor, etc. It has the characteristics of reliable and stable operation, low noise, few failures, and long life. It uses ductile iron and bearing steel, etc., and has the advantages of good performance and high wear resistance. The unloader can unload materials evenly and continuously. At the same time, it can isolate the upper and lower air pressures of the unloader to play an air-locking role. When the material in the upper silo falls by its own weight and fills the gap between the blades, it is discharged at the bottom as the blades rotate. Therefore, the unloader can unload materials quantitatively and continuously. Among them, the unloader motor adopts an explosion-proof type, which is suitable for use in explosive dust environments.

[0035] As a preferred embodiment, Figure 4 As shown, the above-mentioned cartridge dust collector 2 includes a cartridge housing 21, a partition is provided in the middle area of the above-mentioned cartridge housing 21, a cartridge assembly (indicated by L in the figure) is installed at the lower end of the above-mentioned partition, an exhaust fan (indicated by M in the figure) is provided above the above-mentioned partition, an exhaust port is provided at the top of the above-mentioned cartridge housing 21, an ash hopper is provided at the bottom, the bottom of the above-mentioned ash hopper is provided with the above-mentioned second ash port, an explosion-proof port is provided on the lower side wall of the above-mentioned cartridge housing 21, a flameless pressure relief device 22 is installed at the above-mentioned explosion-proof structure. The above-mentioned flameless pressure relief device 22 constitutes the above-mentioned explosion-proof structure.

[0036] In the above embodiment, the gas exiting the cyclone dust collector 1 enters the lower chamber of the filter cartridge housing 21 of the cartridge dust collector 2. After being filtered by the filter cartridge assembly, it flows upward through the holes in the partition plate and is discharged through the top exhaust port under the action of the exhaust fan. The filtered dust on the filter cartridge assembly falls downward into the dust hopper. The filter cartridge assembly can be a conventional filter cartridge assembly.

[0037] A backflush device, designed to remove dust and soot from the filter cartridge assembly, is installed on the partition. This prior art product utilizes a conventional pulsed airflow jet. Furthermore, a flow guide can be added to the pulsed airflow pipe to enhance the airflow induction effect. Furthermore, the upper guide duct on the filter cartridge is eliminated, allowing both pulsed and induced airflows to fully enter the filter cartridge simultaneously. This improved design reduces air consumption, ensures uniform airflow, and improves dust removal efficiency. Furthermore, the explosion-proof design meets the requirements for use with explosive dust, providing enhanced safety.

[0038] It should be noted that the cartridge dust collector 2 can filter dust particles with fine particle size and low density, and can process gases containing dust particles of different particle sizes in conjunction with the cyclone dust collector 1 at the front end.

[0039] It should be particularly emphasized that the flameless pressure relief device 22 in this embodiment belongs to the product of the prior art, such as the patent technology with publication number "CN108930825A", which will not be described in detail here.

[0040] In this embodiment, the motor of the exhaust fan is an explosion-proof motor.

[0041] As a preferred embodiment, Figure 1 As shown, a second aggregate trolley 5 is provided below the second ash outlet.

[0042] In the above embodiment, a separate trolley for collecting dust is provided below the cartridge dust collector 2 to facilitate the collection, migration and centralized treatment of dust.

[0043] As a preferred embodiment, Figure 2 As shown, the second dust outlet is connected to the inner cavity or inlet of the cyclone dust collector 1 through a self-priming return line 6 .

[0044] In the above embodiment, the dust processed by the cartridge dust collector 2 is sucked into the cyclone dust collector 1 and then collected and processed in a centralized manner, which can reduce the installation space of the cartridge dust collector 2. At the same time, a collection trolley can collect the dust generated by the entire processing equipment, which is more convenient.

[0045] As a preferred embodiment, it also includes an explosion-proof electric control box, which is installed outside the above-mentioned cartridge dust collector 2 and is connected to the electrical components in the above-mentioned cyclone dust collector 1 and the cartridge dust collector 2 respectively.

[0046] In the above implementation scheme, the electric control box is of explosion-proof structure, with a steel plate welded shell and electrostatically sprayed plastic on the surface; it is equipped with high-breakage small circuit breakers or molded case circuit breakers, AC vacuum contactors, motor protectors, voltmeters and other components, with overload, short circuit, undervoltage, phase loss, leakage and other protection functions. The incoming and outgoing lines all use spark-free explosion-proof plug-in devices and have clear equipment position indicator panels. The explosion-proof surface adopts special processing means and is embedded with oil-resistant and aging-resistant silicone "0"-shaped sealing rings to make the box body protection level reach IP65, in order to solve the problem of rainwater entering the traditional explosion-proof box when used outdoors, and to abolish the traditional complex and ineffective rain cover measures. Among them, the electrical components in the cyclone dust collector 1 include the motor of the discharger 3 connected to the first ash outlet at the bottom, and the electrical components of the cartridge dust collector 2 include exhaust fans, electrical components of the back-blowing device, etc.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0050] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An explosion-proof cyclone filter cartridge dust removal device, characterized by: The invention comprises a cyclone dust collector (1) and a cartridge dust collector (2), wherein the lower end of the cyclone dust collector (1) is provided with a first ash discharge port, the ash discharge port is connected to a discharger (3), the gas outlet of the cyclone dust collector (1) is connected to the air inlet at the side end of the cartridge dust collector (2) through a pipeline, the lower end of the cartridge dust collector (2) is provided with a second ash discharge port, and the cartridge dust collector (2) is provided with an explosion-proof structure.

2. The explosion-proof cyclone filter cartridge dust removal equipment according to claim 1, characterized in that: It also includes a first material collecting trolley (4), which is arranged below the discharger (3).

3. The explosion-proof cyclone filter cartridge dust removal equipment according to claim 1, characterized in that: It also includes a base (7), and the cyclone dust collector (1) and the cartridge dust collector (2) are respectively installed on the upper end of the base (7).

4. The explosion-proof cyclone filter cartridge dust removal equipment according to any one of claims 1 to 3, characterized in that: The cyclone dust collector (1) comprises a cylinder (11), the upper half of the cylinder (11) being a cylinder and the lower half being a cone; an inlet (111) is provided on the side wall of the upper half of the cylinder (11) for entering tangentially therefrom; an exhaust pipe (12) is coaxially provided on the top of the cylinder (11) and extends downward; a gas outlet is formed at the upper end of the exhaust pipe (12); and a recirculation zone (112) is formed between the exhaust pipe (12) and the side wall of the upper half of the cylinder (11).

5. The explosion-proof cyclone filter cartridge dust removal equipment according to any one of claims 1 to 3, characterized in that: The discharger (3) is an air-locking type discharger, and the motor of the air-locking type discharger is an explosion-proof motor.

6. The explosion-proof cyclone filter cartridge dust removal equipment according to any one of claims 1 to 3, characterized in that: The filter cartridge dust collector (2) includes a filter cartridge housing (21), a partition is provided in the middle area of the filter cartridge housing (21), a filter cartridge assembly is installed at the lower end of the partition, an exhaust fan is provided above the partition, an exhaust port is provided at the top of the filter cartridge housing (21), an ash discharge hopper is provided at the bottom, the second ash discharge port is provided at the bottom of the ash discharge hopper, an explosion relief port is provided on the lower side wall of the filter cartridge housing (21), a flameless pressure relief device (22) is installed at the explosion relief port, and the flameless pressure relief device (22) constitutes the explosion-proof structure.

7. The explosion-proof cyclone filter cartridge dust removal equipment according to claim 6, characterized in that: The motor of the exhaust fan is an explosion-proof motor.

8. The explosion-proof cyclone filter cartridge dust removal equipment according to claim 6, characterized in that: A second aggregate trolley (5) is provided below the second ash outlet.

9. The explosion-proof cyclone filter cartridge dust removal equipment according to claim 6, characterized in that: The second dust discharge port is connected to the inner cavity of the cyclone dust collector (1) via a self-priming return line (6).

10. The explosion-proof cyclone filter cartridge dust removal equipment according to any one of claims 1 to 3, characterized in that: It also includes an explosion-proof electric control box, which is installed outside the cartridge dust collector (2) and is connected to the electrical components in the cyclone dust collector (1) and the cartridge dust collector (2).

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