Waste gas filtering device for heat storage combustion furnace

Abstract

The waste gas filtering device for the heat storage combustion furnace comprises a filtering bin, a gas inlet is formed in the lower end of the outer wall of one side of the filtering bin, and a gas outlet is formed in the upper end of the outer wall of one side of the filtering bin; the device further comprises a filtering mechanism, the filtering mechanism comprises a filter cartridge clamped in the filtering bin, a first filtering sleeve and a second filtering sleeve are sequentially installed in the filter cartridge, an annular positioning ring is installed at the lower end of the filter cartridge, and through holes allowing waste gas to pass through are formed in the outer wall of the upper end of the filter cartridge in a surrounding mode. A top cover is integrally formed at the upper end of the filter cartridge and is mounted at the upper end of the filter bin through a fixing screw. The device is simple in structure and convenient to use, the filter cartridge with the first filter sleeve and the second filter sleeve and the filter bin can be quickly and conveniently combined for use and disassembled for cleaning through the cooperation of the top cover and the coaming and the cooperation of the positioning ring and the clamping ring, and later maintenance and use of equipment are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas filtering equipment, in particular to a waste gas filtering device for a heat storage combustion furnace. Background Art

[0002] A regenerative burner is a device used in industrial combustion processes. It improves combustion efficiency and energy utilization by recycling heat energy. A regenerative burner usually consists of a combustion chamber, a heat exchanger, and a control system. Its working principle is to use the high-temperature exhaust gas heat energy generated by combustion, store the heat energy in the heat exchanger, and then use it to preheat the fresh air or fuel entering the burner. In this way, the fresh air or fuel is preheated to a higher temperature before entering the combustion chamber, thereby improving combustion efficiency and reducing energy consumption.

[0003] When the regenerative combustion equipment is working, it will produce exhaust gas containing sulfide, nitrogen oxide and dust particles. Before desulfurization and denitrification of sulfide and nitrogen oxide, it is necessary to filter the dust particles. After searching, the Chinese patent application number is: CN202110370506.1, which discloses a filtering and dust removal device for industrial waste gas treatment, including an exhaust fan, a pretreatment device and a dust removal device. The pretreatment device includes a first box body, an air inlet, a first guide plate, a first cavity, a first through hole, a second guide plate, a second cavity, a second through hole and a collecting component. The invention, through the coordinated use of an exhaust fan, a pretreatment device, a dust removal device, an atomizing nozzle, a water supply pipe, a solid-liquid separation bin, a filter box and a water storage chamber, can filter and remove dust in industrial waste gas in a variety of ways, can fully separate the dust in the industrial waste gas, and can collect the separated dust, thereby solving the problems of existing industrial waste gas treatment devices having a single dust filtering and dust removal method, low dust separation efficiency, and inability to collect the separated gas.

[0004] The filtering mechanism in the above technical solution has a complex structure, is not easy to separate, and is inconvenient for subsequent cleaning and maintenance. Therefore, we need to propose an exhaust gas filtering device for a heat storage combustion furnace. Utility Model Content

[0005] The purpose of the utility model is to provide an exhaust gas filtering device for a heat storage combustion furnace. The device has a simple structure and is easy to use. Through the cooperation of the top cover and the enclosure, as well as the cooperation of the positioning ring and the clamping ring, the filter cartridge with the first filter sleeve and the second filter sleeve and the filter bin can be quickly and conveniently combined, used and disassembled for cleaning, which is convenient for the later maintenance and use of the equipment, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An exhaust gas filtering device for a regenerative combustion furnace comprises a filter chamber for exhaust gas to pass through and filter, an air inlet for exhaust gas to enter is arranged at the lower end of one side outer wall of the filter chamber, and an air outlet for exhaust gas to be discharged is arranged at the upper end of one side outer wall of the filter chamber;

[0008] It also includes a filter mechanism for exhaust gas filtering arranged in the inner cavity of the filter bin, the filter mechanism includes a filter cartridge clamped in the filter bin, a first filter sleeve and a second filter sleeve are sequentially installed inside the filter cartridge, an annular positioning ring is installed at the lower end of the filter cartridge, a through hole for exhaust gas to pass through is opened on the outer wall of the upper end of the filter cartridge, and a top cover is integrally formed at the upper end of the filter cartridge, and the top cover is installed on the upper end of the filter bin by fixing screws.

[0009] Preferably, a surrounding plate is provided at the upper end of the filter bin, and through holes for passing fixing screws are formed around the edges of the top cover and the surrounding plate. The bottom surface of the top cover abuts against the top surface of the surrounding plate and a sealing gasket is provided on its contact surface.

[0010] Preferably, the interior of the first filter sleeve is filled with porous activated carbon as filter material, and the interior of the second filter sleeve is filled with a ceramic filter.

[0011] Preferably, a clamping ring is provided on the inner wall of the filter bin, a sealing groove is provided on the clamping ring, a rubber ring is provided at the bottom of the positioning ring, and the rubber ring is matched with the sealing groove.

[0012] Preferably, it further comprises a positioning structure for positioning the first filter sleeve and the second filter sleeve, wherein the positioning structure comprises a limiting ring arranged at the top of the inner cavity of the filter cartridge and a limiting rod arranged in the positioning ring.

[0013] Preferably, the through hole passes through the limiting ring and is connected to the inner cavity of the filter cartridge, the lower end of the limiting ring abuts against the top edge of the second filter sleeve, and the limiting rod abuts against the bottom surface of the first filter sleeve.

[0014] Preferably, a threaded sleeve is integrally formed on the top of the positioning ring, and a threaded section is correspondingly provided on the outer wall of the lower end of the filter cartridge.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model respectively arranges an air inlet and an air outlet above and below the filter bin, the filter cartridge is located inside the filter bin and the top cover on the top of the filter cartridge and the enclosure plate on the top of the filter bin are connected by fixing screws, the rubber ring at the bottom of the positioning ring at the bottom of the filter cartridge is inserted into the sealing groove on the surface of the clamping ring on the inner wall of the filter bin, and a first filter sleeve and a second filter sleeve with filter material are arranged inside the filter cartridge, and a through hole is provided on the outer wall of the upper end of the filter cartridge for air outlet. The device has a simple structure and is easy to use. Through the cooperation of the top cover and the enclosure plate and the cooperation of the positioning ring and the clamping ring, the filter cartridge with the first filter sleeve and the second filter sleeve and the filter bin can be quickly and conveniently combined, used and disassembled for cleaning, which is convenient for later maintenance and use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the filter bin of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the filter cartridge of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the clamp ring of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the limiting ring of the utility model.

[0022] In the figure: 1. filter chamber; 2. air inlet; 3. air outlet; 4. filter cartridge; 5. top cover; 6. clamping ring; 7. through hole; 8. positioning ring; 9. threaded sleeve; 10. rubber ring; 11. limiting rod; 12. limiting ring; 13. sealing groove; 14. threaded section; 15. enclosure; 16. first filter sleeve; 17. second filter sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 , the utility model provides a technical solution:

[0025] An exhaust gas filter device for a regenerative combustion furnace comprises a filter chamber 1 for exhaust gas to pass through and filter, an air inlet 2 for exhaust gas to enter is arranged at the lower end of one side outer wall of the filter chamber 1, and an air outlet 3 for exhaust gas to be discharged is arranged at the upper end of one side outer wall of the filter chamber 1; and a filter mechanism for exhaust gas filtering is arranged in the inner cavity of the filter chamber 1, the filter mechanism comprises a filter cartridge 4 clamped in the filter chamber 1, a first filter sleeve 16 and a second filter sleeve 17 are sequentially installed inside the filter cartridge 4, an annular positioning ring 8 is installed at the lower end of the filter cartridge 4, a through hole 7 for exhaust gas to pass through is opened on the upper end outer wall of the filter cartridge 4, and a top cover 5 is integrally formed on the upper end of the filter cartridge 4, and the top cover 5 is installed on the upper end of the filter chamber 1 by fixing screws. A shroud 15 is arranged at the upper end of the filter chamber 1, and a through hole 7 for fixing screws to pass through is opened around the edge of the top cover 5 and the edge of the shroud 15, and the bottom surface of the top cover 5 abuts against the top surface of the shroud 15 and a sealing gasket is arranged on its contact surface. The inner wall of the filter bin 1 is provided with a clamping ring 6 , on which a sealing groove 13 is formed. The bottom of the positioning ring 8 is provided with a rubber ring 10 , which is matched with the sealing groove 13 .

[0026] By respectively arranging an air inlet 2 and an air outlet 3 above and below the filter bin 1, the filter cartridge 4 is located inside the filter bin 1 and the top cover 5 on the top of the filter cartridge 4 and the enclosure 15 on the top of the filter bin 1 are connected by fixing screws, the rubber ring 10 at the bottom of the positioning ring 8 at the bottom of the filter cartridge 4 is inserted into the sealing groove 13 on the surface of the clamping ring 6 on the inner wall of the filter bin 1, and a first filter sleeve 16 and a second filter sleeve 17 with filter material are arranged inside the filter cartridge 4, and a through hole 7 is provided on the outer wall of the upper end of the filter cartridge 4 for air outlet. When in specific use, the exhaust gas outlet of the heat storage combustion equipment is connected through the air inlet 2. After the exhaust gas enters the filter bin 1, it enters the filter cartridge 4 through the opening under the clamping ring 6, passes through the first filter sleeve 16 and the second filter in turn, and then passes through the through hole 7 and is discharged through the air outlet 3. When maintaining the equipment, it only needs to remove the fixing screws between the top cover 5 and the enclosure 15 to take out the entire filter mechanism for cleaning, and then reinstall it for multiple uses.

[0027] The first filter sleeve 16 is filled with porous activated carbon as filter material, and the second filter sleeve 17 is filled with a ceramic filter.

[0028] The ability of the equipment to filter dust particles in exhaust gas can be improved by providing double filtering means.

[0029] It also includes a positioning structure for positioning the first filter sleeve 16 and the second filter sleeve 17, and the positioning structure includes a limit ring 12 arranged at the top of the inner cavity of the filter cartridge 4 and a limit rod 11 arranged in the positioning ring 8. The through hole 7 passes through the limit ring 12 and is connected to the inner cavity of the filter cartridge 4. The lower end of the limit ring 12 abuts against the top edge of the second filter sleeve 17, and the limit rod 11 abuts against the bottom surface of the first filter sleeve 16. A threaded sleeve 9 is integrally formed at the top of the positioning ring 8, and a threaded section 14 is correspondingly arranged on the outer wall of the lower end of the filter cartridge 4.

[0030] By setting a limiting ring 12 at the top of the filter cartridge 4, the threaded sleeve 9 on the positioning ring 8 is threadedly installed on the lower end of the filter cartridge 4, and a limiting rod 11 is set in the positioning ring 8. When the threaded sleeve 9 is installed on the filter cartridge 4, the limiting ring 12 and the limiting rod 11 respectively contact the second filter sleeve 17 and the first filter sleeve 16, thereby playing a good positioning and fixing role, avoiding the second filter sleeve 17 and the first filter sleeve 16 from loosening during use. In addition, after the threaded sleeve 9 is removed from the filter cartridge 4, the second filter sleeve 17 and the first filter sleeve 16 can be easily installed for use and taken out for cleaning.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of 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 exhaust gas filtering device for a heat storage combustion furnace, characterized in that: It comprises a filter chamber (1) for passing and filtering waste gas, wherein an air inlet (2) for waste gas to enter is arranged at the lower end of one side outer wall of the filter chamber (1), and an air outlet (3) for waste gas to be discharged is arranged at the upper end of one side outer wall of the filter chamber (1); It also comprises a filter mechanism for filtering exhaust gas and arranged in the inner cavity of the filter chamber (1), the filter mechanism comprising a filter cartridge (4) snap-fitted into the filter chamber (1), a first filter sleeve (16) and a second filter sleeve (17) being installed in sequence inside the filter cartridge (4), an annular positioning ring (8) being installed at the lower end of the filter cartridge (4), a through hole (7) for exhaust gas to pass through being arranged on the outer wall of the upper end of the filter cartridge (4), a top cover (5) being integrally formed at the upper end of the filter cartridge (4), and the top cover (5) being installed at the upper end of the filter chamber (1) by means of fixing screws.

2. The exhaust gas filtering device for a regenerative combustion furnace according to claim 1, characterized in that: A surrounding plate (15) is provided at the upper end of the filter bin (1), and through holes (7) for fixing screws to pass through are provided around the edges of the top cover (5) and the surrounding plate (15), and the bottom surface of the top cover (5) contacts the top surface of the surrounding plate (15), and a sealing gasket is provided on the contact surface.

3. The exhaust gas filtering device for a regenerative combustion furnace according to claim 1, characterized in that: The interior of the first filter sleeve (16) is filled with porous activated carbon as filter material, and the interior of the second filter sleeve (17) is filled with a ceramic filter.

4. The exhaust gas filtering device for a regenerative combustion furnace according to claim 1, characterized in that: The inner wall of the filter bin (1) is provided with a clamping ring (6), a sealing groove (13) is provided on the clamping ring (6), and a rubber ring (10) is provided at the bottom of the positioning ring (8), and the rubber ring (10) and the sealing groove (13) are matched.

5. The exhaust gas filtering device for a regenerative combustion furnace according to claim 1, characterized in that: It also includes a positioning structure for positioning the first filter sleeve (16) and the second filter sleeve (17), the positioning structure comprising a limiting ring (12) arranged at the top of the inner cavity of the filter cartridge (4) and a limiting rod (11) arranged in the positioning ring (8).

6. The exhaust gas filtering device for a regenerative combustion furnace according to claim 5, characterized in that: The through hole (7) passes through the limiting ring (12) and is connected to the inner cavity of the filter cartridge (4); the lower end of the limiting ring (12) abuts against the top edge of the second filter sleeve (17); and the limiting rod (11) abuts against the bottom surface of the first filter sleeve (16).

7. The exhaust gas filtering device for a regenerative combustion furnace according to claim 1, characterized in that: The top of the positioning ring (8) is integrally formed with a threaded sleeve (9), and the outer wall of the lower end of the filter cartridge (4) is correspondingly provided with a threaded section (14).

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