Biomass hot blast furnace flue gas dust removal device

Abstract

The utility model relates to the technical field of flue gas dust removal devices, and discloses a biomass hot blast furnace flue gas dust removal device, including a processing tank, a storage chamber for storing clean water is provided in the processing tank, an air intake assembly connected to the biomass hot blast furnace is provided in the storage chamber, the air intake assembly includes a fixed pipe fixed in the storage chamber and the upper end of which extends above the liquid surface, a notch is provided at the lower end of the fixed pipe, an air intake pipe extending through the processing tank is provided on the fixed pipe located above the liquid surface, a smoke exhaust hood is provided at the upper end of the processing tank, a filter plate located above the air intake assembly is provided in the storage chamber, and a vibration assembly for driving the filter plate to vibrate is provided at the upper end of the fixed pipe. Through the above-mentioned structure, the flue gas discharged from the biomass hot blast furnace enters the storage chamber and is discharged from the smoke exhaust hood. In this process, the flue gas is subjected to a dust removal treatment once through the clean water and is subjected to a dust removal treatment again through the filter plate, thereby making the flue gas dust removal device have a better effect of dust removal on the flue gas.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas dust removal devices, in particular to a biomass hot blast furnace flue gas dust removal device. Background Art

[0002] The biomass hot air furnace uses biomass pellet fuel as fuel, generates high-temperature flue gas through the burner in the combustion chamber, transfers the heat generated by the fuel combustion to the heat carrier in the furnace, and then passes through the induced draft fan and the chimney into the atmosphere. Since a large amount of flue gas particles are generated during the combustion of biomass fuel, the flue gas discharged from the biomass hot air furnace contains a lot of dust. Existing biomass hot air furnaces are usually equipped with flue gas dust removal devices to remove dust in the discharged flue gas.

[0003] Most of the existing flue gas dust removal devices only filter the flue gas through a filter. For example, the patent No. CN214665183U discloses a biomass hot air furnace with a flue gas dust removal structure, which only filters the flue gas by setting a filter inside the air outlet channel. As a result, its dust removal effect on the flue gas is limited, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a biomass hot blast furnace flue gas dust removal device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The biomass hot blast furnace flue gas dust removal device comprises a processing tank, a storage chamber with an upper opening for storing clean water is provided in the processing tank, an air intake assembly connected to the biomass hot blast furnace is provided in the storage chamber, the air intake assembly comprises a fixed pipe fixed in the storage chamber and with the upper end extending above the liquid level, a notch is provided at the lower end of the fixed pipe, an air intake pipe extending through the processing tank is provided on the fixed pipe located above the liquid level, a smoke exhaust hood is provided at the upper opening of the processing tank, a filter plate is provided above the air intake assembly in the storage chamber, and a vibration assembly for driving the filter plate to vibrate is provided at the upper end of the fixed pipe.

[0007] Furthermore, the vibration assembly includes a turntable rotatably arranged at the upper end part of the fixed tube, the upper end face of the turntable is provided with a convex ring along its circumference, grooves are evenly distributed on the convex ring, and a guide slope is provided on one side wall of the groove; the smoke exhaust hood is provided with a spring for driving the filter plate to move downward, and the lower end face of the filter plate is provided with a push rod extending into the corresponding groove along the circumference of the turntable, and the rotation of the turntable is used to drive the push rod to slide out of the groove along the guide slope to realize the upward movement of the filter plate.

[0008] Furthermore, a slide groove is provided on the side wall of the storage cavity along its axial direction, and a sliding block extending into the slide groove and sliding is provided on the outer side wall of the filter plate.

[0009] Furthermore, the smoke exhaust hood is threadedly connected to the storage cavity, a mounting bracket for abutting against a spring is provided at the extending end of the smoke exhaust hood, and a mounting cylinder for mounting a spring is provided on the upper end surface of the filter plate.

[0010] Furthermore, a rotating shaft extending into the fixed pipe is provided on the lower end surface of the rotating disk, and an impeller located below the connecting end of the air inlet pipe is provided on the rotating shaft.

[0011] Furthermore, a motor for driving the rotating shaft to rotate is provided at the bottom end of the processing tank.

[0012] Furthermore, a lap ring portion overlapped with the upper end of the processing tank is provided on the outer side surface of the fume exhaust hood.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model, through the arrangement of the storage chamber, clean water, air intake assembly and filter plate, allows the flue gas discharged from the biomass hot blast furnace to enter the clean water in the storage chamber and flow toward the clean water liquid surface, thereby allowing the flue gas to be dust-removed once. The flue gas after the clean water dust removal treatment flows upward in the storage chamber and is filtered and discharged through the filter plate, so that the flue gas is filtered and dust-removed by the filter plate again, thereby making the flue gas dust removal device more effective in removing dust from the flue gas.

[0015] 2. The utility model, through the setting of the vibration component, enables the vibration component to drive the filter plate to vibrate, thereby preventing smoke particles from adhering thereto and causing clogging of the filter holes, thereby ensuring the filtering effect of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the biomass hot blast furnace flue gas dust removal device in the utility model.

[0017] Figure 2 It is a cross-sectional schematic diagram of the biomass hot blast furnace flue gas dust removal device in the utility model.

[0018] Figure 3 It is a schematic diagram of a partial explosion structure between the filter plate and the vibration component in the utility model.

[0019] Figure 4 It is a schematic diagram of the structure between the smoke exhaust hood and the filter plate in the utility model.

[0020] The meanings of the numbers in the figure are as follows: 100, treatment tank; 101, water inlet pipe; 102, water outlet pipe; 103, air inlet pipe; 104, support leg; 110, smoke exhaust hood; 201, storage chamber; 202, slide groove; 210, fixed pipe; 211, notch; 220, filter plate; 221, push rod; 230, turntable; 231, rotating shaft; 232, impeller; 233, motor; 240, spring; 310, convex ring; 311, groove; 312, guide slope; 321, slider; 322, mounting tube; 411, mounting frame; 412, lap ring. DETAILED DESCRIPTION

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0022] The following is combined with Figure 1-Figure 4 This embodiment is described in further detail.

[0023] like Figure 1 and Figure 2 As shown, the flue gas dust removal device of the biomass hot blast furnace in this embodiment includes a processing tank 100, and a storage chamber 201 with an upper opening and used for storing clean water is provided in the processing tank 100, and an air intake assembly connected to the biomass hot blast furnace is provided in the storage chamber 201, and the air intake assembly includes a fixed pipe 210 fixed in the storage chamber 201 and the upper end of which extends above the liquid surface, a notch 211 is provided at the lower end of the fixed pipe 210, and an air intake pipe 103 extending through the processing tank 100 is provided on the fixed pipe 210 located above the liquid surface, a smoke exhaust hood 110 is provided at the upper opening of the processing tank 100, a filter plate 220 located above the air intake assembly is provided in the storage chamber 201, and a vibration assembly for driving the filter plate 220 to vibrate is provided at the upper end of the fixed pipe 210.

[0024] In actual use, the outer wall of the treatment tank 100 is provided with a water inlet pipe 101 at the top, and the outer wall of the treatment tank 100 is provided with a water outlet pipe 102 at the bottom. In actual use, clean water is injected into the storage chamber 201 through the water inlet pipe 101, and the water outlet pipe 102 is used to discharge the sewage after the flue gas treatment in the storage chamber 201.

[0025] The air inlet pipe 103 is used to connect with the tail gas discharge pipe of the biomass hot blast furnace, so that the flue gas generated by the biomass hot blast furnace can enter the air inlet assembly. In actual use, the lower end of the fixed pipe 210 is fixedly installed on the bottom wall of the storage chamber 201, and the notch 211 provided at the lower end thereof is used to enable the interior of the fixed pipe 210 to communicate with the storage chamber 201. At the same time, the upper end of the fixed pipe 210 is closed, so that the flue gas entering the fixed pipe 210 from the air inlet pipe 103 can enter the storage chamber 201 through the notch 211, so that in the process of the flue gas flowing toward the clean water surface, a part of the flue gas particles in the flue gas are captured by the water and sink into the water, so that the flue gas is dust-removed;

[0026] The filter plate 220 is provided so that the smoke flows upward in the storage chamber 201, so that part of the smoke particles in the smoke are filtered, thereby further removing dust from the smoke, that is, the smoke dust removal device has a better dust removal effect on the smoke;

[0027] The fume hood 110 is provided so that the fume hood 110 is threadedly mounted on the upper opening of the storage chamber 201, so that the fume after dust removal in the storage chamber 201 can be discharged from the processing tank 100;

[0028] In actual use, the outer surface of the exhaust hood 110 is provided with an overlap ring portion 412 overlapped at the upper end of the processing tank 100, and a sealing gasket can be sleeved on the overlap ring portion 412, thereby making the installation of the exhaust hood 110 on the processing tank 100 more airtight;

[0029] Among them, through the setting of the vibration component, the vibration component can drive the filter plate 220 to vibrate, and then can better make the smoke particles attached to the filter plate 220 fall into the clean water, avoiding the blockage of the filter holes on the filter plate 220, thereby ensuring the filtering effect of the filter plate 220 on the smoke.

[0030] Combination Figure 3 As shown, in this embodiment, the vibration assembly includes a turntable 230 rotatably arranged at the upper end of the fixed tube 210, and the upper end surface of the turntable 230 is provided with a convex ring 310 along its circumference, and the convex ring 310 is evenly provided with grooves 311, and a guide slope 312 is provided on one side wall of the groove 311; the smoke exhaust hood 110 is provided with a spring 240 for driving the filter plate 220 to move downward, and the lower end surface of the filter plate 220 is provided with a push rod 221 extending into the corresponding groove 311 along the circumference of the turntable 230, and the rotation of the turntable 230 is used to drive the push rod 221 to slide out of the groove 311 along the guide slope 312 to realize the upward movement of the filter plate 220.

[0031] In actual use of this embodiment, a slide groove 202 is provided on the side wall of the storage cavity 201 along its axial direction, and a slider 321 extending into the slide groove 202 and sliding is provided on the outer side wall of the filter plate 220, wherein a plurality of slide grooves 202 are evenly arranged along the circumference of the storage cavity 201, and the number of sliders 321 corresponds to the arrangement of the slide grooves 202. By arranging the sliders 321 in the corresponding slide grooves 202, the filter plate 220 is restricted so that it can only be raised and lowered in the storage cavity 201, and cannot be rotated in the circumferential direction.

[0032] Among them, through the arrangement of the spring 240, the top rod 221, the convex ring 310 and the groove 311, the spring 240 always pushes the filter plate 220 to move downward, driving the top rod 221 to abut against the convex ring 310. In actual use, a guide slope 312 is set on one side wall of the groove 311, and the other side wall is vertical. Therefore, the continuous rotation of the turntable 230 can drive the continuous rotation of the convex ring 310, so that the top rod 221 slides into the groove 311 from the other side wall of the groove 311 under the action of the spring 240, and slides out of the groove 311 along the guide slope 312, thereby preferably causing the filter plate 220 to vibrate.

[0033] In this embodiment, Figure 4 As shown, the smoke hood 110 is threadedly connected to the storage cavity 201 , the extending end of the smoke hood 110 is provided with a mounting bracket 411 for abutting against the spring 240 , and the upper end surface of the filter plate 220 is provided with a mounting tube 322 for mounting the spring 240 .

[0034] Through the structure in this embodiment, when the smoke hood 110 is installed at the upper end of the processing tank 100, the mounting frame 411 thereon can abut the upper end of the spring 240, and the lower end of the spring 240 is installed using the mounting tube 322, so that the spring 240 is preferably installed and always pushes the filter plate 220 downward.

[0035] In this embodiment, a rotating shaft 231 extending into the fixed pipe 210 is provided on the lower end surface of the rotating disk 230 , and an impeller 232 located below the connecting end of the air inlet pipe 103 is provided on the rotating shaft 231 .

[0036] In actual use of this embodiment, the diameter of the fixed pipe 210 located below the clean water level is relatively small, thereby facilitating the smoke to enter the clean water. Meanwhile, the impeller 232 is located in the fixed pipe 210 above the clean water level, thereby enabling the smoke to enter the air intake assembly at a relatively high flow rate, and the smoke flow can drive the impeller 232 to rotate, thereby driving the rotating shaft 231 to rotate, thereby achieving vibration of the filter plate 220.

[0037] In this embodiment, a motor 233 for driving the rotating shaft 231 to rotate is disposed at the bottom end of the processing tank 100 .

[0038] In this embodiment, when the flow rate of smoke entering the air intake assembly is low and the impeller 232 cannot be driven to drive the rotating shaft 231 to rotate, the motor 233 can preferably drive the rotating shaft 231 to rotate, thereby causing the filter plate 220 to vibrate to ensure its filtering effect on the smoke;

[0039] It should be noted that a support leg 104 is provided at the bottom end of the processing tank 100 for supporting the processing tank 100 so as to facilitate the installation of the motor 233 .

[0040] Working principle: The flue gas generated by the biomass hot air furnace enters the processing tank 100 through the air inlet pipe 103, and the flue gas enters the clean water through the notch 211 on the fixed pipe 210 and flows toward the liquid surface, so that the flue gas is dust-removed. The treated flue gas flows upward in the storage chamber 201, and is filtered by the filter plate 220 before being discharged from the processing tank 100 by the exhaust hood 110, so that the flue gas is dust-removed again; after the flue gas dust removal device is used for a long time, the motor 233 is started to drive the rotating shaft 231 to rotate, so that the filter plate 220 vibrates, and the flue gas particles attached to it fall into the clean water, thereby ensuring the filtering effect of the filter plate 220 on the flue gas.

[0041] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A biomass hot blast furnace flue gas dust removal device, comprising a treatment tank (100), characterized in that: A storage chamber (201) with an upper opening and used for storing clean water is provided in the processing tank (100), an air intake assembly connected to the biomass hot air furnace is provided in the storage chamber (201), the air intake assembly comprises a fixed pipe (210) fixed in the storage chamber (201) and with its upper end extending above the liquid surface, a notch (211) is provided at the lower end of the fixed pipe (210), an air intake pipe (103) extending through the processing tank (100) is provided on the fixed pipe (210) located above the liquid surface, a smoke exhaust hood (110) is provided at the upper opening of the processing tank (100), a filter plate (220) located above the air intake assembly is provided in the storage chamber (201), and a vibration assembly for driving the filter plate (220) to vibrate is provided at the upper end of the fixed pipe (210).

2. The biomass hot blast furnace flue gas dust removal device according to claim 1 is characterized in that: The vibration assembly comprises a rotating disk (230) rotatably arranged at the upper end of a fixed tube (210); a convex ring (310) is arranged on the upper end surface of the rotating disk (230) along its circumference; grooves (311) are evenly arranged on the convex ring (310); a guide inclined surface (312) is arranged on one side wall of the groove (311); a spring (240) for driving the filter plate (220) to move downward is arranged on the smoke exhaust hood (110); a push rod (221) extending into the corresponding groove (311) is arranged on the lower end surface of the filter plate (220) along the circumference of the rotating disk (230); the rotating disk (230) is rotated to drive the push rod (221) to slide out of the groove (311) along the guide inclined surface (312) to realize the upward movement of the filter plate (220).

3. The biomass hot blast furnace flue gas dust removal device according to claim 2 is characterized in that: A sliding groove (202) is provided on the side wall of the storage cavity (201) along its axial direction, and a sliding block (321) is provided on the outer side wall of the filter plate (220) and extends into the sliding groove (202) and slides.

4. The biomass hot blast furnace flue gas dust removal device according to claim 2 is characterized in that: The smoke exhaust hood (110) is threadedly connected to the storage chamber (201); a mounting frame (411) for abutting against a spring (240) is provided at the extending end of the smoke exhaust hood (110); and a mounting cylinder (322) for mounting the spring (240) is provided on the upper end surface of the filter plate (220).

5. The biomass hot blast furnace flue gas dust removal device according to claim 2 is characterized in that: A rotating shaft (231) extending into the fixed pipe (210) is provided on the lower end surface of the rotating disk (230), and an impeller (232) located below the connecting end of the air inlet pipe (103) is provided on the rotating shaft (231).

6. The biomass hot blast furnace flue gas dust removal device according to claim 5 is characterized in that: A motor (233) for driving the rotating shaft (231) to rotate is provided at the bottom end of the processing tank (100).

7. The biomass hot blast furnace flue gas dust removal device according to claim 1 is characterized in that: An overlapping ring portion (412) overlapping the upper end portion of the processing tank (100) is provided on the outer side surface of the smoke exhaust hood (110).

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