Environment-friendly device for dust treatment
By combining heating and condensation devices, the problem of high humidity and sticky dust adhering in bag filters is solved, achieving efficient dust treatment and stable equipment operation.
Patent Information
- Application Number
- CN202520020696.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-06
AI Technical Summary
High humidity and sticky dust tend to adhere to the surface of filter bags, leading to decreased air permeability and increased filtration resistance, thus shortening the service life of the filter bags. Existing baghouse dust collectors are unable to effectively handle this issue.
A heating device is used to heat the high-humidity and sticky dust, and a condensation device is used to reduce the dust's humidity and stickiness, ensuring that the dust is in a dry and low-sticky state before entering the bag filter. The design of the heating cylinder and inner cylinder achieves double-sided heating, and the condensation device removes water vapor to prevent dust from sticking together.
It effectively reduces the moisture and stickiness of dust, improves the filtration performance of bag filters, avoids filter bag clogging, and extends the service life of the equipment.
Smart Images
Figure CN223818355U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dust treatment equipment technology, specifically an environmental protection device for dust treatment. Background Technology
[0002] In industry, baghouse dust collectors are often used to remove dust generated in the air during production processes. Baghouse dust collectors are a type of high-efficiency dry dust removal equipment. Their main function is to remove dust particles from dust-laden gas through filtration, so that the discharged gas meets environmental emission standards. At the same time, the dust is collected for subsequent treatment or recycling.
[0003] However, when dealing with high-humidity dust, moisture causes the dust to adhere to the surface of the filter bag. Water molecules act as a binder, increasing the stickiness between dust particles. This is common in some food processing industries, such as flour processing producing wet flour dust, or in the chemical industry when dealing with dust containing hygroscopic substances. Dust adhesion leads to a decrease in the air permeability of the filter bag, causing a rapid increase in filtration resistance. Moreover, the adhered dust is difficult to remove by conventional cleaning methods, gradually clogging the filter bag and shortening its service life.
[0004] Therefore, it is necessary to provide an environmentally friendly device for dust treatment to solve the above problems.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content
[0006] The purpose of this invention is to provide an environmentally friendly device for dust treatment, so as to solve the problems mentioned in the background art.
[0007] The technical solution adopted by this application to solve its technical problem is:
[0008] An environmental protection device for dust treatment includes a support frame, on the top surface of which a bag filter for filtering dust is fixedly installed. The bottom side wall of the bag filter is provided with a dust inlet pipe, which is connected to a condensation device. The air inlet end of the condensation device is connected to a heating device. Both the heating device and the condensation device are installed on the top surface of the support frame.
[0009] The heating device includes an inlet pipe, a heating cylinder, an outlet pipe, an inlet pipe, an inner cylinder, and a discharge pipe. One end of the heating cylinder is welded to the inlet pipe, and the other end of the heating cylinder is welded to the outlet pipe. The outlet pipe is connected to the inlet end of the condenser. An inlet pipe is fixedly installed on one side of the top surface of the heating cylinder, and a discharge pipe is fixedly installed on the other side of the bottom surface of the heating cylinder. Both the inlet pipe and the discharge pipe are fixedly installed to the side wall of the inner cylinder, and the inlet pipe and the discharge pipe are connected to the inside of the inner cylinder.
[0010] Preferably, the heating cylinder has a first inner groove inside its side wall, the inlet pipe has a first hole at the position of the first inner groove on its side wall, and the outlet pipe has a second hole at the position of the first inner groove.
[0011] Preferably, the bottom of the bag filter is provided with an ash discharge pipe, the top side wall of the bag filter is equipped with a pulse jet cleaning device, and the top side wall of the bag filter is equipped with a filter discharge pipe.
[0012] Preferably, the inner cylinder has an inner cavity, and the inner cavity has multiple partitions. Each of the multiple partitions has a notch at its edge, and the notches of the multiple partitions are arranged at equal angles around the axis of the inner cylinder.
[0013] Preferably, the condensation device includes a condenser cylinder, an inlet pipe, and an outlet pipe. One end of the condenser cylinder is connected to the gas outlet pipe, and the other end of the condenser cylinder is connected to the dust inlet pipe. A second inner groove is formed inside the side wall of the condenser cylinder. The inlet pipe, the second inner groove, and the outlet pipe are connected. A drain pipe is installed at the bottom of the condenser cylinder.
[0014] Preferably, the condenser cylinder has an internal channel for dust to pass through, and multiple condenser tubes are vertically installed in the channel.
[0015] The beneficial effects of this application are:
[0016] High-humidity and sticky dust is heated by a heating device. The heating medium flows in a serpentine manner in the inner cavity of the inner cylinder through the guidance of the baffle. It can also heat the inner wall of the heating cylinder through the first and second holes, achieving a double-sided heating effect. This allows the inner cylinder to maintain a high temperature continuously, improving the heating efficiency for high-humidity and sticky dust, reducing the humidity and stickiness of the dust. After entering the bag filter, the dust is less likely to stick to the surface of the filter bag, enabling the bag filter to handle this special dust more effectively and avoiding problems such as decreased air permeability and increased filtration resistance caused by dust adhesion.
[0017] In addition, the synergistic effect of the heating and condensing devices ensures that the dust entering the bag filter is in a relatively dry and low-viscosity state, enabling the bag filter to maintain good filtration performance.
[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0020] Figure 1 This is an overall schematic diagram of an environmental protection device for dust treatment according to the present invention;
[0021] Figure 2 This is a schematic diagram of the internal structure of the heating device of this utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the inner cylinder of this utility model;
[0023] Figure 4 This is a schematic diagram of the internal structure of the condensation device of this utility model.
[0024] The following are the labeling elements in the figure:
[0025] 1. Bracket;
[0026] 2. Baghouse dust collector;
[0027] 3. Pulse jet cleaning device;
[0028] 4. Filter outlet tube;
[0029] 5. Ash discharge pipe;
[0030] 6. Dust enters the pipe;
[0031] 7. Heating device; 71. Inlet pipe; 72. Heating cylinder; 73. Outlet pipe; 74. Inlet pipe; 75. First inner groove; 76. First hole; 77. Inner cylinder; 771. Inner cavity; 772. Partition; 773. Notch; 78. Discharge pipe; 79. Second hole;
[0032] 8. Condensation device; 81. Condensation cylinder; 82. Second inner tank; 83. Liquid inlet pipe; 84. Condensation tube; 85. Liquid outlet pipe; 86. Drain pipe. Detailed Implementation
[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.
[0035] Please see Figure 1-4 The embodiments provided by this utility model are as follows:
[0036] An environmentally friendly dust removal device includes a support frame 1. A bag filter 2 for filtering dust is fixedly installed on the top surface of the support frame 1. The bottom end of the bag filter 2 is provided with a dust discharge pipe 5. A pulse jet cleaning device 3 is installed on the top side wall of the bag filter 2. A filter outlet pipe 4 is installed on the top side wall of the bag filter 2. A dust inlet pipe 6 is provided on the bottom side wall of the bag filter 2. Multiple filter bags are installed inside the bag filter 2. Dust enters the bottom of the bag filter 2 through the dust inlet pipe 6 and is filtered by the filter bags on the multiple filter bags, thus removing the dust from the gas. The filtered air is discharged through the filter outlet pipe 4. The pulse jet cleaning device 3 uses pulse jets to shake off the dust attached to the multiple filter bags and discharges it from the bag filter 2 through the dust discharge pipe 5, thereby removing dust from the gas.
[0037] To address the issue of high humidity and sticky dust, it is necessary to reduce the humidity of the dust. Therefore, the dust inlet pipe 6 is connected to the condenser 8, and the air inlet of the condenser 8 is connected to the heating device 7. Both the heating device 7 and the condenser 8 are installed on the top surface of the bracket 1.
[0038] Specifically, the heating device 7 includes an inlet pipe 71, a heating cylinder 72, an outlet pipe 73, an inlet pipe 74, an inner cylinder 77, and an outlet pipe 78. One end of the heating cylinder 72 is welded to the inlet pipe 71, and the other end of the heating cylinder 72 is welded to the outlet pipe 73. The outlet pipe 73 is connected to the inlet end of the condensing device 8. An inlet pipe 74 is fixedly installed on one side of the top surface of the heating cylinder 72, and an outlet pipe 78 is fixedly installed on the other side of the bottom surface of the heating cylinder 72. Both the inlet pipe 74 and the outlet pipe 78 are fixedly installed to the side wall of the inner cylinder 77, and the inlet pipe 74 and the outlet pipe 78 are connected to the interior of the inner cylinder 77. The dust-laden gas first enters the heating cylinder 72 from the inlet pipe 71. At the same time, the heat medium (such as steam, hot oil, or high-temperature flue gas) enters the inner cavity 771 of the inner cylinder 77 from the inlet pipe 74, which raises the surface temperature of the inner cylinder 77, thereby heating the high-humidity and sticky dust that passes through.
[0039] Furthermore, a first inner groove 75 is provided inside the side wall of the heating cylinder 72, a first hole 76 is provided on the side wall of the inlet pipe 74 at the position of the first inner groove 75, and a second hole 79 is provided on the outlet pipe 78 at the position of the first inner groove 75.
[0040] As the heating medium enters the inner cavity 771 of the inner cylinder 77, it also enters the first inner groove 75 through the first hole 76, thus heating the wall of the inner cylinder 77 of the heating cylinder 72. This allows the high-humidity and sticky dust to be heated on both sides as it flows between the outside of the inner cylinder 77 and the wall of the inner cylinder 77 of the heating cylinder 72, improving the heating effect on the high-humidity and sticky dust. Heating reduces the humidity and stickiness of the dust, making it less likely to stick to the filter bags during subsequent bag dust collection. This improves the adaptability of the bag dust collector 2 to high-humidity and sticky dust, ensuring the dust collection effect and normal operation of the equipment.
[0041] It is worth noting that the inner cylinder 77 has an inner cavity 771 inside, and multiple baffles 772 are provided in the inner cavity 771. Each baffle 772 has a notch 773 at its edge, and the notches 773 of the multiple baffles 772 are arranged at equal angles around the axis of the inner cylinder 77 at 360°. The heat medium flows in a serpentine manner in the inner cavity 771 through the guidance of the baffles 772, which can keep the inner cylinder 77 at a high temperature and better heat the high humidity and sticky dust.
[0042] The condensing device 8 includes a condensing cylinder 81, an inlet pipe 83, and an outlet pipe 85. One end of the condensing cylinder 81 is connected to the outlet pipe 73, and the other end of the condensing cylinder 81 is connected to the dust inlet pipe 6. A second inner groove 82 is opened inside the side wall of the condensing cylinder 81. The inlet pipe 83, the second inner groove 82, and the outlet pipe 85 are connected. A drain pipe 86 is installed at the bottom of the condensing cylinder 81. A dust passage is opened inside the condensing cylinder 81, and multiple condensing pipes 84 are vertically installed in the passage.
[0043] The high-temperature dust-laden gas from the heating device 7 enters the condenser cylinder 81. The cooling medium (such as water or coolant) enters the second inner tank 82 of the condenser cylinder 81 through the liquid inlet pipe 83 and then circulates in the second inner tank 82. The condenser tube 84 exchanges heat with the cooling medium, which lowers the temperature of the dust-laden gas inside the tube. The water vapor in the gas condenses into liquid water when it encounters the cold, adheres to the surface of the condenser tube 84 and drips to the bottom of the condenser cylinder 81, and is discharged through the drain pipe 86. After being condensed and dried, the dust enters the bag filter 2 through the dust inlet pipe 6, preventing the dust from re-adhere to the filter bag due to the water vapor entering the bag filter 2, thus improving the overall device's treatment effect on high humidity and sticky dust.
[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An environmental protection device for dust treatment, comprising a support (1), wherein a bag filter (2) for filtering dust is fixedly installed on the top surface of the support (1), characterized in that: The bottom side wall of the bag filter (2) is provided with a dust inlet pipe (6), which is connected to the condenser (8). The air inlet of the condenser (8) is connected to the heating device (7). The heating device (7) and the condenser (8) are both installed on the top surface of the bracket (1). The heating device (7) includes an inlet pipe (71), a heating cylinder (72), an outlet pipe (73), an inlet pipe (74), an inner cylinder (77), and an outlet pipe (78). One end of the heating cylinder (72) is welded to the inlet pipe (71), and the other end of the heating cylinder (72) is welded to the outlet pipe (73). The outlet pipe (73) is connected to the inlet end of the condensing device (8). An inlet pipe (74) is fixedly installed on one side of the top surface of the heating cylinder (72), and an outlet pipe (78) is fixedly installed on the other side of the bottom surface of the heating cylinder (72). Both the inlet pipe (74) and the outlet pipe (78) are fixedly installed to the side wall of the inner cylinder (77), and the inlet pipe (74) and the outlet pipe (78) are connected to the interior of the inner cylinder (77).
2. The environmental protection device for dust treatment according to claim 1, characterized in that: The heating cylinder (72) has a first inner groove (75) inside its side wall, the inlet pipe (74) has a first hole (76) at the position of the first inner groove (75) on its side wall, and the outlet pipe (78) has a second hole (79) at the position of the first inner groove (75).
3. The environmental protection device for dust treatment according to claim 2, characterized in that: The bottom end of the bag filter (2) is provided with an ash discharge pipe (5), the top side wall of the bag filter (2) is equipped with a pulse jet cleaning device (3), and the top side wall of the bag filter (2) is equipped with a filter discharge pipe (4).
4. An environmental protection device for dust treatment according to claim 1, characterized in that: The inner cylinder (77) has an inner cavity (771) inside, and the inner cavity (771) has multiple partitions (772). Each of the multiple partitions (772) has a notch (773) at its edge, and the notches (773) of the multiple partitions (772) are arranged at equal angles around the axis of the inner cylinder (77) at 360°.
5. An environmental protection device for dust treatment according to claim 1, characterized in that: The condensation device (8) includes a condenser cylinder (81), an inlet pipe (83), and an outlet pipe (85). One end of the condenser cylinder (81) is connected to the outlet pipe (73), and the other end of the condenser cylinder (81) is connected to the dust inlet pipe (6). A second inner groove (82) is provided inside the side wall of the condenser cylinder (81). The inlet pipe (83), the second inner groove (82), and the outlet pipe (85) are connected. A drain pipe (86) is installed at the bottom of the condenser cylinder (81).
6. An environmental protection device for dust treatment according to claim 5, characterized in that: The condenser cylinder (81) has an internal channel for dust to pass through, and multiple condenser tubes (84) are vertically installed in the channel.