A composite dust removal filter cartridge assembly for a biomass boiler

Abstract

The utility model discloses a kind of composite dust removal filter cartridge assemblies for biomass boiler, it is related to flue gas treatment equipment technical field, including cyclone sleeve and the filter sleeve being set to the top of cyclone sleeve and the composite filter material being set to the inside of filter sleeve, the inside of cyclone sleeve is equipped with gas seat, and connecting sleeve is equipped between cyclone sleeve and filter sleeve;The utility model is equipped with connecting sleeve between cyclone sleeve and filter sleeve, the inside of connecting sleeve is installed with spiral coil pipe, and it is connected with the circulating equipment of external cooling liquid by cooperating circulating liquid inlet pipe and circulating liquid outlet pipe, when tail gas enters into the inside of filter sleeve through cyclone sleeve, heat exchange is carried out from the inside of spiral coil pipe with the cooling liquid in the inside of connecting sleeve, the temperature of tail gas is reduced, the harm of tail gas to the inside filter assembly of filter sleeve is reduced, greenhouse effect caused by tail gas emission to outside is reduced, and environmental protection performance is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas treatment equipment, specifically a composite dust removal filter cartridge assembly for biomass boilers. Background Technology

[0002] Biomass boilers are an important component of biomass power plants. During the operation of biomass boilers, a large amount of exhaust gas is generated. In order to avoid harming the atmospheric environment, dust removal devices are required when the exhaust gas is emitted. Traditional dust removal devices mostly use cyclone separators and filter cartridges. After the exhaust gas passes through the cyclone separator to separate large particles of impurities, it directly enters the filter cartridge for filtration. The exhaust gas lacks cooling measures, and the high-temperature flue gas directly impacts the filter cartridge, which can easily cause the filter material inside the filter cartridge to age faster, such as the softening and aging of PTFE membrane filter material. Utility Model Content

[0003] The purpose of this invention is to provide a composite dust removal filter cartridge assembly for biomass boilers to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a cyclone sleeve, a filter sleeve disposed on the top of the cyclone sleeve, and a composite filter material disposed inside the filter sleeve, wherein an air vent seat is assembled inside the cyclone sleeve; A connecting sleeve is assembled between the cyclone sleeve and the filter sleeve. A spiral coil is provided inside the connecting sleeve. One end of the spiral coil is connected to the air outlet seat, and the other end of the spiral coil is connected to a vent pipe connected to the cyclone sleeve. A circulating liquid inlet pipe and a circulating liquid outlet pipe are respectively connected to the surface of the connecting sleeve.

[0005] In a further embodiment, control valves are installed on the surfaces of both the circulating inlet pipe and the circulating outlet pipe, and an air inlet pipe is connected to the surface of the cyclone sleeve, with a valve installed on the surface of the air inlet pipe.

[0006] In a further embodiment, a mounting base is slidably connected inside the filter sleeve, and the composite filter material is assembled inside the mounting base.

[0007] In a further embodiment, the composite filter material consists of a ceramic fiber support layer as the base layer, a glass fiber middle layer, and a polytetrafluoroethylene microporous membrane as the surface layer.

[0008] In a further embodiment, the filter sleeve is internally fitted with a support boss, which engages with the bottom of the mounting base.

[0009] In a further embodiment, the top of the filter sleeve is threadedly connected to a sleeve cap, and the top of the sleeve cap is connected to an external pipe.

[0010] In a further embodiment, the bottom of the filter sleeve is connected to a waste discharge pipe, and a valve is installed on the surface of the waste discharge pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention features a connecting sleeve between the cyclone sleeve and the filter sleeve. The connecting sleeve contains a spiral coil, which, along with a circulating inlet pipe and a circulating outlet pipe, connects to an external cooling fluid circulation system. This allows exhaust gas to pass through the cyclone sleeve and enter the filter sleeve, where it exchanges heat with the cooling fluid inside the connecting sleeve. This reduces the exhaust gas temperature, minimizes its harmful effects on the filter components inside the filter sleeve, and reduces the greenhouse effect caused by exhaust gas emissions, thus improving environmental performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a partial structural cross-sectional view of an embodiment of the present utility model; Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of point A in the middle.

[0013] In the diagram: 1. Cyclone sleeve; 2. Filter sleeve; 3. Composite filter media; 31. Base layer; 32. Intermediate layer; 33. Surface layer; 4. Air outlet seat; 5. Connecting sleeve; 6. Spiral coil; 7. Vent pipe; 8. Circulating liquid inlet pipe; 9. Circulating liquid outlet pipe; 10. Control valve; 11. Air inlet pipe; 12. Mounting base; 13. Support boss; 14. Cylinder cover; 15. Waste discharge pipe; 16. External pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This embodiment discloses a composite dust collector filter cartridge assembly for a biomass boiler, including a cyclone sleeve 1, a filter sleeve 2 disposed on top of the cyclone sleeve 1, and a composite filter material 3 disposed inside the filter sleeve 2. An air vent seat 4 is installed inside the cyclone sleeve 1. The composite filter material 3 is composed of a ceramic fiber support layer of the base layer 31, a glass fiber middle layer 32, and a polytetrafluoroethylene microporous mold of the surface layer 33. Figure 1 , Figure 2 and Figure 3As shown in this application, the cyclone sleeve 1 is located at the bottom of the dust collector filter cartridge assembly. The bottom discharge port of the cyclone sleeve 1 is used to install the external discharge valve and ash hopper for filtering large particulate impurities in the exhaust gas. The air passage seat 4 is designed inside the cyclone sleeve 1 and is located at the top center of the inner wall of the cyclone sleeve 1. The air passage seat 4 is a cavity design, used for the centrifuged exhaust gas to enter and be transported to the next unit. The filter sleeve 2 is located at the top of the cyclone sleeve 1 and is used to install and fix the composite filter material 3. When the exhaust gas is transported into the interior of the filter sleeve 2, the first... First, the exhaust gas passes through the bottom of the composite filter material 3 and moves upward. After being filtered by the composite filter material 3, the exhaust gas is transported to the next treatment unit. The base layer 31 of the composite filter material 3 is a ceramic fiber support layer, which can enhance the mechanical strength of the composite filter material 3. The middle layer 32 of the composite filter material 3 is made of glass fiber material. The middle layer 32 has a gradient fiber structure, which can filter impurities of different particle sizes step by step and improve dust holding capacity. The surface layer 33 of the composite filter material 3 is a polytetrafluoroethylene microporous membrane material, which can achieve oil and water resistance, intercept fine particles, and reduce the adhesion of sticky dust.

[0016] The filter sleeve 2 has a sliding connection to a mounting base 12. The composite filter media 3 is assembled inside the mounting base 12. A support boss 13 is also fitted inside the filter sleeve 2, and the support boss 13 engages with the bottom of the mounting base 12. A waste discharge pipe 15 is connected to the bottom of the filter sleeve 2, and a valve is installed on the surface of the waste discharge pipe 15. A sleeve cover 14 is threaded to the top of the filter sleeve 2, and an external pipe 16 is connected to the top of the sleeve cover 14. Figure 1 , Figure 2 and Figure 3 As shown, in this application, the mounting base 12 is located inside the filter sleeve 2 and is slidably connected to the filter sleeve 2. The composite filter material 3 is fixedly installed inside the mounting base 12. The mounting base 12 serves as the outer shell frame of the composite filter material 3 and is used to fix the composite filter material 3. The support boss 13 is located inside the filter sleeve 2 and is fixedly connected to the filter sleeve 2. It is used to place the mounting base 12 and provide support for the mounting base 12. The cylinder cover 14 is located on the top of the filter sleeve 2. The boss of the cylinder cover 14 is threadedly connected to the filter sleeve 2. The boss of the cylinder cover 14 presses against the mounting base 12. The top of the mounting base 12 is used to further fix and lock the mounting base 12 in place with the support boss 13. The waste discharge pipe 15 is connected to the bottom of the filter sleeve 2 and is used to discharge the impurities filtered by the composite filter material 3 in the exhaust gas. The outer pipe 16 is installed on the top of the cylinder cover 14 and is connected to the inner cavity of the filter sleeve 2. The outer pipe 16 can be connected to the next processing unit to transport the exhaust gas to the next processing unit for processing. The outer pipe 16 can also be connected to the external backflushing equipment to clean the composite filter material 3 when the external backflushing equipment backflushes.

[0017] A connecting sleeve 5 is assembled between the cyclone sleeve 1 and the filter sleeve 2. A spiral coil 6 is installed inside the connecting sleeve 5. One end of the spiral coil 6 is connected to the air vent seat 4, and the other end is connected to a vent pipe 7 connected to the cyclone sleeve 1. A circulating liquid inlet pipe 8 and a circulating liquid outlet pipe 9 are respectively connected to the surface of the connecting sleeve 5. Figure 1 and Figure 2 As shown, the connecting sleeve 5 is located between the cyclone sleeve 1 and the filter sleeve 2. The connecting sleeve 5 is detachably connected to the cyclone sleeve 1 and the filter sleeve 2, allowing the connecting sleeve 5 to be easily removed from between the cyclone sleeve 1 and the filter sleeve 2, thus enabling the disassembly and cleaning of the spiral coil 6. The spiral coil 6 is located inside the connecting sleeve 5. One end of the spiral coil 6 is connected to the air vent seat 4, providing a passage for the exhaust gas. The other end of the spiral coil 6 extends to the outside of the connecting sleeve 5 and is connected to the vent pipe 7. The other end of the vent pipe 7 is connected to the inner cavity of the filter sleeve 2. The exhaust gas can be transported through the air vent 4 to the inside of the spiral coil 6, and then through the spiral coil 6 to the inside of the vent pipe 7. From there, it is transported to the inside of the filter sleeve 2 for filtration. The circulating liquid inlet pipe 8 and the circulating liquid outlet pipe 9 are located on the surface of the connecting sleeve 5 and are connected to the inside of the connecting sleeve 5, allowing external coolant to circulate within the connecting sleeve 5. When the exhaust gas passes through the spiral coil 6, it can exchange heat with the coolant inside the connecting sleeve 5, reducing the temperature of the exhaust gas and mitigating the impact of high-temperature exhaust gas on the environment and the filter components.

[0018] Control valves 10 are installed on the surfaces of both the circulating inlet pipe 8 and the circulating outlet pipe 9. An air inlet pipe 11 is connected to the surface of the cyclone sleeve 1, and a valve is installed on the surface of the air inlet pipe 11. Figure 1 and Figure 2 As shown, control valves 10 are installed on both the circulating inlet pipe 8 and the circulating outlet pipe 9 to control the passage of the circulating inlet pipe 8 and the circulating outlet pipe 9, so as to facilitate the opening and closing of the coolant delivery stroke. The air inlet pipe 11 is located on the surface of the cyclone sleeve 1 and communicates with the interior of the cyclone sleeve 1. It is used to deliver external exhaust gas so that it can enter the interior of the cyclone sleeve 1. The valve is used to control the passage of its air inlet pipe 11.

[0019] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite dust collector filter cartridge assembly for a biomass boiler, comprising a cyclone sleeve (1), a filter sleeve (2) disposed at the top of the cyclone sleeve (1), and a composite filter material (3) disposed inside the filter sleeve (2), characterized in that: The cyclone sleeve (1) is equipped with an air vent seat (4) inside. A connecting sleeve (5) is assembled between the cyclone sleeve (1) and the filter sleeve (2). A spiral coil (6) is provided inside the connecting sleeve (5). One end of the spiral coil (6) is connected to the air outlet seat (4), and the other end of the spiral coil (6) is connected to the air vent pipe (7) connected to the cyclone sleeve (1). A circulating liquid inlet pipe (8) and a circulating liquid outlet pipe (9) are respectively connected to the surface of the connecting sleeve (5).

2. The composite dust collector filter cartridge assembly for a biomass boiler according to claim 1, characterized in that: Control valves (10) are installed on the surfaces of the circulating inlet pipe (8) and the circulating outlet pipe (9). An air inlet pipe (11) is connected to the surface of the cyclone sleeve (1), and a valve is installed on the surface of the air inlet pipe (11).

3. The composite dust collector filter cartridge assembly for a biomass boiler according to claim 1, characterized in that: The filter sleeve (2) is slidably connected to a mounting base (12), and the composite filter material (3) is assembled inside the mounting base (12).

4. The composite dust collector filter cartridge assembly for a biomass boiler according to claim 1, characterized in that: The composite filter material (3) is composed of a ceramic fiber support layer of the base layer (31), glass fiber of the middle layer (32), and polytetrafluoroethylene microporous membrane of the surface layer (33).

5. A composite dust collector filter cartridge assembly for a biomass boiler according to claim 3, characterized in that: The filter sleeve (2) is equipped with a support boss (13) inside, which is engaged with the bottom of the mounting base (12).

6. A composite dust collector filter cartridge assembly for a biomass boiler according to claim 1, characterized in that: The top of the filter sleeve (2) is threadedly connected to a sleeve cap (14), and the top of the sleeve cap (14) is connected to an outer pipe (16).

7. A composite dust collector filter cartridge assembly for a biomass boiler according to claim 1, characterized in that: The bottom of the filter sleeve (2) is connected to a waste discharge pipe (15), and a valve is installed on the surface of the waste discharge pipe (15).

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