CN218955556U

CN218955556U - Heat exchange type hot blast stove with flue gas circulation device

Info

Publication number: CN218955556U
Application number: CN202223325896.XU
Authority: CN
Inventors: 王丽; 孙志武
Original assignee: Dongguan Hongtai Hot Stamping Materials Co ltd
Current assignee: Dongguan Hongtai Hot Stamping Materials Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-02
Anticipated expiration: 2032-12-09

Abstract

The utility model belongs to the field of heat exchange type hot blast stoves, in particular to a heat exchange type hot blast stove with a flue gas circulation device, which comprises a bottom plate, a stove body, a heat exchanger, a circulation pipe and a filter box arranged between the heat exchanger and the stove body; one side of the top of the inner cavity of the filter box is rotationally connected with a screw rod through a bearing, and the other side of the top of the inner cavity of the filter box is fixedly connected with a vertical rod; dust impurities contained in the flue gas can be removed between the flue gas entering heat exchangers through the filter boxes, the filter frames and the adsorption blocks, the flue gas is prevented from directly entering the heat exchangers, the impurities are prevented from adhering to the ceramic heat exchange tubes, the service life of the heat exchangers can be prolonged, the flue gas of the hot blast stove can enter the heat exchangers only through the filter frames and the adsorption blocks through the arrangement of the vertical plates, and meanwhile the filter frames and the adsorption blocks are convenient to replace through the screw rods, the movable plates, the clamping plates and the groove plates, so that the practicability is high.

Description

Heat exchange type hot blast stove with flue gas circulation device

Technical Field

The utility model relates to the field of heat exchange type hot blast stoves, in particular to a heat exchange type hot blast stove with a smoke circulating device.

Background

The heat exchange type hot blast stove is a drying device for converting heat energy, and is usually composed of a hot blast stove and a heat exchanger, and because the heat exchange mode of the hot blast stove is to transfer high-temperature flue gas generated after fuel combustion to the heat exchanger, and discharge the flue gas, fresh air is injected to heat the flue gas, but the high-temperature flue gas is wasted directly, a pipeline is usually arranged to enable the discharged flue gas to return to the hot blast stove for recycling.

Because the high-temperature flue gas generated after the internal combustion of the heat exchange type hot blast stove needs to be heated in the heat exchanger, the flue gas after the combustion of the heat exchange type hot blast stove at present usually directly enters the heat exchanger through a pipeline;

because the heat exchanger is generally composed of a plurality of high-temperature-resistant ceramic heat exchange tubes, and the flue gas contains a large amount of dust impurities, if the flue gas directly enters the heat exchanger, the dust impurities contained in the flue gas are adhered to the surface or the inside of the ceramic heat exchange tubes, and a large amount of impurities are adhered and accumulated on the surface or the inside of the ceramic heat exchange tubes for a long time, so that the heat exchange effect of the ceramic heat exchange tubes is reduced, and the service life of the heat exchanger is shortened, and therefore, the heat exchange type hot blast stove with the flue gas circulation device is provided for solving the problems.

Disclosure of Invention

In order to overcome the defects in the prior art and solve the problems, the utility model provides a heat exchange type hot blast stove with a flue gas circulation device.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a heat exchange type hot blast stove with a flue gas circulating device, which comprises a bottom plate, a stove body, a heat exchanger, a circulating pipe and a filter box arranged between the heat exchanger and the stove body; the filter box comprises a filter box body, a filter box top, a filter box inner cavity, a filter box top, a filter box bottom, a filter frame, a sealing plate, an adsorption block, a vertical plate, a clamping mechanism and an adsorption block, wherein one side of the top of the filter box inner cavity is rotationally connected with the screw rod through a bearing, the other side of the top of the filter box inner cavity is fixedly connected with the vertical rod, the external surface of the screw rod is connected with the movable plate in a threaded manner, one side of the top of the movable plate is connected with the outer surface of the vertical rod in a sliding manner through a sliding hole, the bottom of the movable plate is connected with the filter frame in a clamping manner through the clamping mechanism, an opening matched with the filter frame is formed in the bottom of the filter box, the bottom of the filter box is fixedly connected with the sealing plate, the top of the sealing plate is provided with the adsorption block and the inside of the filter box is provided with the adsorption block, and the clamping mechanism comprises the vertical plate and the bottom of the vertical plate is fixedly connected with the movable plate.

Preferably, the number of the vertical plates is two, the tops of the two vertical plates are fixedly connected with two sides of the bottom of the movable plate respectively, and the bottoms of the vertical plates are fixedly connected with one side of the top of the filter frame.

Preferably, the middle part fixedly connected with frid of movable plate bottom, the mounting panel of top fixedly connected with frid looks adaptation at filter frame top, the mounting groove has been seted up to one side of mounting panel, one side fixedly connected with spring telescopic link of riser, the cardboard of one end fixedly connected with and mounting groove looks adaptation of spring telescopic link.

Preferably, the bottom of cardboard just is located one side fixedly connected with arm-tie of frid, the seal groove has been seted up to the bottom of rose box just being located open-ended periphery, the top fixedly connected with of closing plate and the sealing washer of seal groove looks adaptation.

Preferably, one side of the filter box is communicated with one side of the furnace body through a connecting pipe, the other side of the filter box is communicated with one side of the heat exchanger through a connecting pipe, one end of the circulating pipe is communicated with the top of the other side of the furnace body, and the other end of the circulating pipe is communicated with the top of the other side of the heat exchanger.

Preferably, the bottom of the furnace body is fixedly connected with one side of the top of the bottom plate through a fixing plate, the bottom of the heat exchanger is fixedly connected with the other side of the top of the bottom plate, and the top of the other side of the filter box is fixedly connected with the top of one side of the heat exchanger through a connecting plate.

The utility model has the advantages that:

1. according to the utility model, dust impurities contained in the flue gas can be removed between the flue gas entering the heat exchanger through the filter box, the filter frame and the adsorption block, so that the flue gas is prevented from directly entering the heat exchanger, the impurities are prevented from being adhered to the ceramic heat exchange tube, the service life of the heat exchanger can be prolonged, the flue gas of the hot blast stove can enter the heat exchanger only through the filter frame and the adsorption block through the arrangement of the vertical plate, and meanwhile, the filter frame and the adsorption block are convenient to replace through the screw rod, the movable plate, the clamping plate and the groove plate, so that the practicability is high;

2. according to the utility model, the sealing performance of the device can be enhanced through the sealing groove and the sealing ring, so that leakage of the device during flue gas filtration can be avoided, and waste is caused.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a first cross-sectional perspective view of the present utility model;

FIG. 3 is a second cross-sectional perspective view of the present utility model;

FIG. 4 is a third cross-sectional perspective view of the present utility model;

fig. 5 is an enlarged perspective view of the present utility model at a in fig. 2.

In the figure: 1. a bottom plate; 2. a furnace body; 3. a heat exchanger; 4. a circulation pipe; 5. a filter box; 6. a screw rod; 7. a vertical rod; 8. a moving plate; 9. a filter frame; 10. an opening; 11. a sealing plate; 12. an adsorption block; 13. a riser; 14. a trough plate; 15. a mounting plate; 16. a mounting groove; 17. a spring telescoping rod; 18. a clamping plate; 19. pulling a plate; 20. sealing grooves; 21. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, a heat exchange type hot blast stove with a flue gas circulation device comprises a bottom plate 1, a stove body 2, a heat exchanger 3, a circulation pipe 4 and a filter box 5 arranged between the heat exchanger 3 and the stove body 2; the filter box is characterized in that one side of the top of the inner cavity of the filter box 5 is rotationally connected with a screw rod 6 through a bearing, the other side of the top of the inner cavity of the filter box 5 is fixedly connected with a vertical rod 7, the outer surface of the screw rod 6 is in threaded connection with a movable plate 8, one side of the top of the movable plate 8 is in sliding connection with the outer surface of the vertical rod 7 through a sliding hole, the bottom of the movable plate 8 is clamped with a filter frame 9 through a clamping mechanism, an opening 10 matched with the filter frame 9 is formed in the bottom of the filter box 5, a sealing plate 11 is fixedly connected to the bottom of the filter frame 9 and is positioned below the filter box 5, an adsorption block 12 is arranged at the top of the sealing plate 11 and inside the filter frame 9, the clamping mechanism comprises a vertical plate 13, and the top of the vertical plate 13 is fixedly connected with the bottom of the movable plate 8; because the heat exchanger is generally composed of a plurality of high temperature resistant ceramic heat exchange tubes, and the flue gas contains a large amount of dust impurities, if the flue gas directly enters the heat exchanger, the dust impurities contained in the flue gas can be adhered to the surface or the inside of the ceramic heat exchange tubes, so that the surface or the inside of the ceramic heat exchange tubes can be adhered to and accumulated with more impurities for a long time, the heat exchange effect of the ceramic heat exchange tubes can be reduced, the service life of the heat exchanger can be shortened, during operation, the dust impurities contained in the flue gas can be removed between the flue gas entering the heat exchanger 3 through the filter box 5, the filter frame 9 and the adsorption block 12, the flue gas is prevented from directly entering the heat exchanger 3, the impurities are adhered to the ceramic heat exchange tubes, the service life of the heat exchanger 3 can be prolonged, the effect of removing the impurities in the flue gas can be enhanced through the two modes of the filter frame 9 and the adsorption block 12, the impurities in the flue gas can be filtered by the filter frame 9, the adsorption block 12 is utilized to adsorb impurities in the flue gas, the adsorption block 12 is made of active carbon, the adsorption performance is strong, the filter block 9 is arranged on the periphery of the adsorption block 12, and then the flue gas can be adsorbed by the adsorption block 12 after passing through the filter block 9, so that the impurities in the flue gas can be reduced by a part before the adsorption block 12 adsorbs, the service life of the adsorption block 12 can be prolonged, the flue gas of the hot blast stove can enter the heat exchanger 3 after passing through the filter block 9 and the adsorption block 12 through the arrangement of the vertical plate 13, the filter block 9 is gradually blocked by dust impurities after being used for a period of time, the adsorption block 12 is gradually saturated and loses adsorption capacity, the filter block 9 and the adsorption block 12 need to be cleaned or replaced, the replacement treatment is conveniently carried out on the filter block 9 and the adsorption block 12 through the screw rod 6, the movable plate 8, the clamping plate 18 and the groove plate 14, the practicability is stronger.

The number of the vertical plates 13 is two, the tops of the two vertical plates 13 are fixedly connected with two sides of the bottom of the movable plate 8 respectively, and the bottom of the vertical plate 13 is fixedly connected with one side of the top of the filter frame 9; during operation, the two sides of the filter frame 9 are made of filter screen materials, and the top of the filter frame is not provided with a filter screen, so that flue gas can only enter from left to right and cannot pass through the filter frame 9 and the adsorption block 12 to be directly discharged.

The middle part of the bottom of the movable plate 8 is fixedly connected with a groove plate 14, the top of the filter frame 9 is fixedly connected with a mounting plate 15 matched with the groove plate 14, one side of the mounting plate 15 is provided with a mounting groove 16, one side of the vertical plate 13 is fixedly connected with a spring telescopic rod 17, and one end of the spring telescopic rod 17 is fixedly connected with a clamping plate 18 matched with the mounting groove 16; in operation, the two sides of the bottom of the groove plate 14 are provided with notches, the number of the mounting plates 15 is two, and the two mounting plates 15 are respectively in sliding connection with the inner surfaces of the two notches.

The bottom of the clamping plate 18 is fixedly connected with a pulling plate 19 on one side of the groove plate 14, a sealing groove 20 is formed in the periphery of the opening 10 at the bottom of the filter box 5, and a sealing ring 21 matched with the sealing groove 20 is fixedly connected to the top of the sealing plate 11; during operation, the sealing performance of the device can be enhanced through the sealing groove 20 and the sealing ring 21, and leakage of the device can be avoided during flue gas filtration, so that waste is caused.

One side of the filter box 5 is communicated with one side of the furnace body 2 through a connecting pipe, the other side of the filter box 5 is communicated with one side of the heat exchanger 3 through a connecting pipe, one end of the circulating pipe 4 is communicated with the top of the other side of the furnace body 2, and the other end of the circulating pipe 4 is communicated with the top of the other side of the heat exchanger 3; when the heat exchanger works, the circulating pipe 4 can enable the flue gas exhausted from the heat exchanger 3 to be recycled, so that the energy consumption can be reduced.

The bottom of the furnace body 2 is fixedly connected with one side of the top of the bottom plate 1 through a fixed plate, the bottom of the heat exchanger 3 is fixedly connected with the other side of the top of the bottom plate 1, and the top of the other side of the filter box 5 is fixedly connected with the top of one side of the heat exchanger 3 through a connecting plate; when the heat exchanger works, the middle part on the left side of the furnace body 2 is communicated with a pipe inlet, the middle part on the left side of the heat exchange pipe is communicated with an air inlet pipe, and the middle part on the right side of the heat exchanger 3 is communicated with an air outlet pipe.

The working principle is that the heat exchanger is usually composed of a plurality of high temperature resistant ceramic heat exchange tubes, and the flue gas contains a large amount of dust impurities, if the flue gas directly enters the heat exchanger, the dust impurities in the flue gas can be adhered to the surface or the inside of the ceramic heat exchange tubes for a long time, so that more impurities are adhered and accumulated on the surface or the inside of the ceramic heat exchange tubes, the heat exchange effect of the ceramic heat exchange tubes can be reduced, the service life of the heat exchanger is shortened, after the furnace body 2 burns fuel to generate high temperature flue gas, the flue gas enters the filter box 5 through the connecting tube, the flue gas entering the filter box 5 sequentially passes through the filter frame 9 and the adsorption block 12 and then is discharged out of the filter box 5, when entering the heat exchanger 3, the filtered flue gas enters the heat exchange tube inside the heat exchanger 3 to be heated, and then enters the circulating tube 4 to return to the furnace body 2, because the filter frame 9 and the adsorption block 12 need to be replaced after being used for a certain time, when the adsorption block 12 needs to be replaced independently, the screw rod 6 is directly rotated by screwing the screw rod to rotate, so that the movable plate 8 and the filter frame 9 gradually move downwards until the filter frame 9 is completely exposed, at the moment, the adsorption block 12 is directly taken out to be replaced, when the filter frame 9 needs to be replaced or cleaned, the filter frame 9 is completely moved to the exposed state according to the operation, then the pull plate 19 is pulled to press the spring telescopic rod 17 so that the clamping plate 18 is separated from the mounting groove 16, the filter frame 9 can be removed, otherwise, when the filter frame 9 is mounted, the mounting plate 15 is directly moved upwards to align the groove plate 14, the clamping plate 18 directly enters the mounting groove 16 by the elasticity of the spring telescopic rod 17, then the adsorption block 12 is placed on the sealing plate 11 positioned in the filter frame 9, the reverse rotation of the screw 6 causes the moving plate 8 and the filter frame 9 to move upwards until the sealing plate 11 is completely attached to the filter box 5, at which time the sealing ring 21 will also be inside the sealing groove 20.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. A heat exchange type hot blast stove with a flue gas circulation device comprises a bottom plate (1), a stove body (2), a heat exchanger (3), a circulation pipe (4) and a filter box (5) arranged between the heat exchanger (3) and the stove body (2); the method is characterized in that: one side at rose box (5) inner chamber top is connected with lead screw (6) through the bearing rotation, opposite side fixedly connected with montant (7) at rose box (5) inner chamber top, the outside face threaded connection of lead screw (6) has movable plate (8), the surface sliding connection of one side at movable plate (8) top through slide hole and montant (7), the bottom of movable plate (8) has filter frame (9) through joint mechanism joint, opening (10) with filter frame (9) looks adaptation have been seted up to the bottom of rose box (5), the bottom of filter frame (9) just is located below fixedly connected with closing plate (11) of rose box (5), the top of closing plate (11) just is located the inside of filter frame (9) and is provided with adsorption block (12), joint mechanism includes riser (13), the top of riser (13) and the bottom fixed connection of movable plate (8).

2. A heat exchange stove with a flue gas recirculation arrangement according to claim 1, characterized in that: the number of the vertical plates (13) is two, the tops of the two vertical plates (13) are fixedly connected with two sides of the bottom of the movable plate (8) respectively, and the bottom of the vertical plates (13) is fixedly connected with one side of the top of the filter frame (9).

3. A heat exchange stove with a flue gas recirculation arrangement according to claim 2, characterized in that: the middle part fixedly connected with frid (14) of movable plate (8) bottom, the mounting panel (15) of frid (14) looks adaptation is fixedly connected with at the top at filter frame (9) top, mounting groove (16) have been seted up to one side of mounting panel (15), one side fixedly connected with spring telescopic link (17) of riser (13), one end fixedly connected with of spring telescopic link (17) cardboard (18) with mounting groove (16) looks adaptation.

4. A heat exchange stove according to claim 3, having a flue gas recirculation means, wherein: the bottom of cardboard (18) and be located one side fixedly connected with arm-tie (19) of frid (14), seal groove (20) have been seted up to the bottom of rose box (5) and be located the periphery of opening (10), sealing washer (21) of top fixedly connected with and seal groove (20) looks adaptation of closing plate (11).

5. A heat exchange stove with a flue gas recirculation arrangement according to claim 4, characterized in that: one side of the filter tank (5) is communicated with one side of the furnace body (2) through a connecting pipe, the other side of the filter tank (5) is communicated with one side of the heat exchanger (3) through a connecting pipe, one end of the circulating pipe (4) is communicated with the top of the other side of the furnace body (2), and the other end of the circulating pipe (4) is communicated with the top of the other side of the heat exchanger (3).

6. A heat exchange stove with a flue gas recirculation arrangement according to claim 5, characterized in that: the bottom of furnace body (2) is through one side fixed connection at fixed plate and bottom plate (1) top, the bottom of heat exchanger (3) is with the opposite side fixed connection at bottom plate (1) top, the top of rose box (5) opposite side is through the top fixed connection of connecting plate and heat exchanger (3) one side.