Energy-saving dual-fuel regenerative burner

Abstract

The application relates to the technical field of regenerative burners, in particular to an energy-saving dual-fuel regenerative burner, which comprises a main pipeline and an inner pipeline, the inner pipeline is coaxially arranged between the main pipeline, a feeding pipe is fixedly arranged on the outer wall of the main pipeline, the feeding pipe and a feeding port of the inner pipeline form a group of double-channel feeding ports, the two different kinds of gases are conveyed into the device through the inner pipeline and the feeding pipe by the staff when the device is used, the staff rotates the adjusting reversing valve, the main pipeline is communicated with the pipeline one, the gas is ignited through the igniter, the heat generated by the burning gas is conveyed into the gas outlet pipe through the pipeline two, the heat in the pipeline two is absorbed and stored through the heat accumulator in the conveying process, the stirring blade arranged in the reaction box is rotated under the blowing of the airflow, the gas in the reaction box is mixed more uniformly, and the combustion efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of regenerative burners, in particular to an energy-saving dual-fuel regenerative burner. BACKGROUND

[0002] In the industrial furnace technology, there are two devices for heating gas or combustion air by using the waste heat of the furnace chamber exhaust gas, one is a heat exchanger, and the other is a regenerative chamber. The regenerative burner is a burner that recovers heat from the kiln flue gas by regenerative balls to preheat air, so as to achieve the purpose of alternating combustion and uniform heating. At present, the regenerative burners mainly used are single-fuel burners, and air regenerative burners are mainly used. However, in the process of use, the single-fuel burners face the problem of stopping the furnace and replacing the burners, which leads to the need for frequent adjustment of the device when different fuels are used.

[0003] In order to solve the above problems, the double-fuel regenerative burner disclosed in the publication number CN220269376U is disclosed, which comprises a burner body, the burner body is provided with a coal gas injection hole and a natural gas injection hole inside, the coal gas injection hole and the natural gas injection hole are both provided with a regenerative body inside, the coal gas injection hole is connected with a coal gas pipeline through the regenerative body, the natural gas injection hole is connected with a natural gas pipeline through the regenerative body, an air injection hole is arranged between the coal gas injection hole and the natural gas injection hole inside the burner body, an air dispersion structure is arranged at the air injection hole close to the burner body injection end, and a heat conduction assembly is arranged on the outer wall of the air injection hole.

[0004] However, the above-mentioned disclosed device is not conducive to the application of low-calorific-value gas such as blast furnace gas when the double regenerative burner is used, because low-temperature reversing cannot be realized, a large amount of high-calorific-value gas is needed to realize ignition and furnace drying at low temperature, and therefore a special flue and a high-calorific-value gas pipeline need to be arranged, which increases the investment and the complexity of pipeline arrangement. SUMMARY

[0005] Based on the above problems existing in the prior art, the problem to be solved by the present application is that the double regenerative burner is not conducive to the application of low-calorific-value gas such as blast furnace gas when the disclosed device is used, because low-temperature reversing cannot be realized, a large amount of high-calorific-value gas is needed to realize ignition and furnace drying at low temperature, and therefore a special flue and a high-calorific-value gas pipeline need to be arranged, which increases the investment and the complexity of pipeline arrangement.

[0006] The technical scheme adopted by the present application to solve the technical problems is: an energy-saving dual-fuel regenerative burner, comprising a main pipeline and an inner pipeline, the inner pipeline is coaxially arranged between the main pipeline, a feeding pipe is fixedly arranged on the outer wall of the main pipeline, and the feeding pipe and the feeding port of the inner pipeline form a group of double-channel feeding ports.

[0007] The adjusting assembly comprises a reversing valve fixedly arranged on the main pipeline, a pipeline one and a pipeline two fixedly connected with the reversing valve, and an air outlet pipeline, wherein the pipeline one and the pipeline two are arranged in mirror image, and a collecting box is fixedly arranged on the end of the pipeline one and the pipeline two, and a heat accumulator is fixedly arranged in the collecting box.

[0008] The reaction mechanism comprises a reaction box fixedly connected between the two collecting boxes, and the reaction box is communicated with the collecting boxes through a connecting pipeline, and an igniter for igniting gas is fixedly arranged in the reaction box.

[0009] Preferably, a flange is fixedly arranged on the outer circumferential surface of the main pipeline, and a threaded hole is formed in the side wall of the flange.

[0010] Preferably, a flame nozzle is fixedly arranged at the connecting pipeline of the pipeline one and the pipeline two, the flame nozzle is arranged in a truncated pyramid shape with a large bottom and a small top, a plurality of air outlets with equal hole diameters are formed in the flame nozzle, and the plurality of air outlets are arranged in a circular shape.

[0011] Preferably, the main pipeline, the pipeline one, the pipeline two and the air outlet pipeline are arranged in a cross shape, the main pipeline is adjacent to the pipeline one and the pipeline two, and the main pipeline, the pipeline one, the pipeline two and the air outlet pipeline are communicated through the reversing valve.

[0012] Preferably, two parallel supports are fixedly arranged in the reaction box, a guide plate is fixedly arranged between the two supports, a guide groove is formed in the guide plate, a stirring blade is slidably arranged in the guide groove, and a control assembly for controlling the position of the stirring blade is arranged on the reversing valve.

[0013] Preferably, the control assembly comprises a rotating shaft fixedly arranged in the reversing valve, a take-up reel is fixedly arranged on one end of the rotating shaft close to the reaction box, a sliding groove is formed in the reaction box, a sliding block is slidably arranged in the sliding groove, the sliding block is rotatably connected with the stirring blade, a connecting iron wire is fixedly arranged on the outer circumferential surface of the sliding block, and the other end of the connecting iron wire is fixedly connected with the take-up reel.

[0014] Preferably, a wire outlet is formed in the outer wall of the reaction box, and the wire outlet is located at the other end of the sliding groove.

[0015] Preferably, the diameter of the sliding block is not less than the width of the guide groove, and a spring is fixedly arranged between the sliding block and the support.

[0016] Preferably, a connecting plate is fixedly arranged on the side wall of the sliding block, and a scraper is fixedly arranged on the connecting plate, and the scraper is in close contact with the inner wall of the reaction box.

[0017] Preferably, a filter is fixedly arranged at the pipe opening of the air outlet pipe.

[0018] The application has the beneficial effects that the energy-saving double-fuel heat accumulating burner provided by the application realizes that the workers convey two different kinds of gases into the device through the inner pipeline and the feeding pipe when using the device, at this time, the workers rotate the adjusting reversing valve, so that the main pipeline is communicated with the pipeline one, at this time, the mixed gas in the pipeline is discharged into the reaction box in the device through the air outlet, and then the gas is ignited by the igniter, at this time, the heat generated by the burning gas is conveyed to the air outlet pipe through the pipeline two, and in the conveying process, the heat in the pipeline two is absorbed and stored by the heat accumulator, at the same time, the stirring blade arranged in the reaction box can rotate under the blowing of the airflow, so that the gas in the reaction box is mixed more uniformly, and the combustion efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the application;

[0020] Figure 2 It is an internal structure schematic view of the reversing valve of the application;

[0021] Figure 3 It is an internal structure schematic view of the main pipeline of the application;

[0022] Figure 4 It is a structure schematic view of the application; Figure 3 It is an enlarged structure schematic view of A in the application;

[0023] Figure 5 It is a front view structure schematic view of the application;

[0024] Figure 6 It is a structure schematic view of the flame nozzle of the application;

[0025] Figure 7 It is an internal structure schematic view of the reaction box of the application;

[0026] Figure 8 It is a local structure schematic view of the application.

[0027] In the figure: 1, main pipeline; 11, feed pipe; 12, flange; 13, threaded hole; 2, inner pipeline; 3, reversing valve; 31, pipeline one; 32, pipeline two; 321, gas outlet pipe; 33, collection box; 331, igniter; 34, heat accumulator; 4, reaction box; 5, connecting pipe; 51, flame nozzle; 52, gas outlet; 6, support; 61, guide plate; 62, guide groove; 63, stirring blade; 7, rotating shaft; 71, take-up reel; 72, chute; 73, sliding block; 74, connecting wire; 75, spring; 8, connecting plate; 81, scraper; 9, filter. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0030] Referring to Figures 1-3 An energy-saving dual-fuel heat accumulating burner includes a main pipeline 1 and an inner pipeline 2, the inner pipeline 2 is coaxially arranged between the main pipeline 1, a feed pipe 11 is fixedly arranged on the outer wall of the main pipeline 1, and the feed pipe 11 and a feed port of the inner pipeline 2 form a set of double-channel feed ports;

[0031] An adjusting assembly includes a reversing valve 3 fixedly arranged on the main pipeline 1, a pipeline one 31, a pipeline two 32 and a gas outlet pipe 321 are fixedly connected to the reversing valve 3, the pipeline one 31 and the pipeline two 32 are mirror-image arranged, a collection box 33 is fixedly arranged on the end of each of the pipeline one 31 and the pipeline two 32, and a heat accumulator 34 is fixedly arranged in each of the two collection boxes 33.

[0032] A reaction mechanism includes a reaction box 4 fixedly connected between the two collection boxes 33, the reaction box 4 is connected in communication with the collection boxes 33 through a connecting pipe 5, and an igniter 331 for igniting gas is fixedly arranged in the reaction box 4.

[0033] Referring to Figure 1 , Figure 4 and Figure 5The outer circumferential surface of the main pipeline 1 is fixedly provided with a flange 12, and a threaded hole 13 is formed in the side wall of the flange 12. The flange 12 provided on the main pipeline 1 facilitates the connection of the device with the gas outlet of an external device, and the threaded hole 13 provided on the flange 12 facilitates the fixing of the main pipeline 1.

[0034] With reference to Figures 4-6 The connecting pipe 5 where the pipeline one 31 and the pipeline two 32 are connected is fixedly provided with a flame nozzle 51. The flame nozzle 51 is in the shape of a truncated pyramid with a large bottom and a small top. A plurality of gas outlets 52 with equal hole diameters are formed in the flame nozzle 51, and the plurality of gas outlets 52 are arranged in a circular shape. The flame nozzle 51 provided at the connecting pipe 5 where the pipeline one 31 and the pipeline two 32 are connected can mix the gas flowing out of the pipeline one 31 and the pipeline two 32 uniformly, thereby improving the reaction efficiency of the device.

[0035] With reference to Figures 1-3 The main pipeline 1, the pipeline one 31, the pipeline two 32, and the gas outlet pipe 321 are arranged in a cross shape. The main pipeline 1 is adjacent to the pipeline one 31 and the pipeline two 32, and the main pipeline 1, the pipeline one 31, the pipeline two 32, and the gas outlet pipe 321 are connected through the reversing valve 3. The main pipeline 1, the pipeline one 31, the pipeline two 32, and the gas outlet pipe 321 are arranged in a cross shape, so that the reversing valve 3 can control the communication between the main pipeline 1 and the pipeline one 31 and the pipeline two 32 after the device is assembled, thereby ensuring that the heat storage body 34 arranged in the collection box 33 can store the heat generated during the reaction.

[0036] With reference to Figures 5-7 The reaction box 4 is fixedly provided with two parallel supports 6, and a guide plate 61 is fixedly arranged between the two supports 6. A guide groove 62 is formed in the guide plate 61, and a stirring blade 63 is slidably arranged in the guide groove 62. The reversing valve 3 is provided with a control assembly for controlling the position of the stirring blade 63. The guide plate 61 arranged in the reaction box 4 can ensure that the stirring blade 63 slidably arranged in the guide groove 62 can uniformly mix and stir the gas at the gas inlet of the reaction box 4, thereby improving the combustion efficiency.

[0037] With reference to Figure 1 , Figure 7 and Figure 8The control assembly comprises a rotating shaft 7 fixedly arranged in the reversing valve 3, the rotating shaft 7 is fixedly arranged with a take-up reel 71 on one end close to the reaction box 4, the reaction box 4 is provided with a sliding groove 72, the sliding groove 72 is slidably provided with a sliding block 73, the sliding block 73 is rotatably connected with the stirring blade 63, the outer circumferential surface of the sliding block 73 is fixedly provided with a connecting iron wire 74, the other end of the connecting iron wire 74 is fixedly connected with the take-up reel 71, through the rotating shaft 7 arranged on the reversing valve 3, when the staff rotates the reversing valve 3, the take-up reel 71 fixedly arranged on the rotating shaft 7 can wind the connecting iron wire 74, so that the sliding block 73 connected with the other end can move, and the position of the stirring blade 63 is adjusted.

[0038] With reference to Figures 2-4 The reaction box 4 is provided with a wire outlet on the outer wall, the wire outlet is located at the other end of the sliding groove 72, through the wire outlet arranged on the reaction box 4, the connecting iron wire 74 on the take-up reel 71 is prevented from being stuck, and the device can normally work.

[0039] With reference to Figures 6-8 The diameter of the sliding block 73 is not less than the width of the guide groove 62, and the sliding block 73 is fixedly provided with a spring 75 between the bracket 6, through the sliding block 73 and the guide groove 62, the sliding block 73 is prevented from deviating during movement.

[0040] With reference to Figures 6-8 The sliding block 73 is fixedly provided with a connecting plate 8 on the side wall, and the connecting plate 8 is fixedly provided with a scraper 81, the scraper 81 is attached to the inner wall of the reaction box 4, through the connecting plate 8 arranged on the sliding block 73 and the scraper 81 fixedly connected with the connecting plate 8, the scraper 81 is moved and the impurities adhered to the inner wall of the reaction box 4 are cleaned during the movement of the sliding block 73.

[0041] With reference to Figures 1-3 The filter 9 is fixedly arranged at the pipe opening of the air outlet pipe 321, the filter 9 arranged at the pipe opening of the air outlet pipe 321 filters and purifies the gas to be discharged, so that the discharged gas will not pollute the environment.

[0042] The specific scheme is: when the staff uses the device, two different kinds of gas are transported into the device through the flange 12 and the feed pipe 11, at this time, the staff rotates the adjusting screw hole 13, so that the main pipe 1 is in communication with the pipe one 31, at this time, the mixed gas in the pipe is discharged into the heat accumulator 34 in the device through the gas outlet 52, and then the gas is ignited by the igniter 331, at this time, the heat generated by the burning gas is transported into the gas outlet pipe 321 through the pipe two 32, and in the process of transportation, the heat in the pipe two 32 is absorbed and stored by the heat accumulator 34, the flange 12 arranged on the main pipe 1 facilitates the staff to connect the device with the gas outlet end of the external device, and then the screw hole 13 arranged on the flange 12 facilitates the staff to fix the main pipe 1, the flame nozzle 51 arranged at the connecting pipe 5 of the pipe one 31 and the pipe two 32 realizes that the gas flowing out of the pipe one 31 and the pipe two 32 can be mixed uniformly, improves the reaction efficiency of the device, the guide plate 61 arranged in the reaction box 4 can ensure that the stirring blade 63 slidingly arranged in the guide groove 62 can stir and mix the gas at the gas inlet of the reaction box 4 uniformly, improve the combustion efficiency, and when the staff rotates the reversing valve 3, the take-up reel 71 fixedly arranged on the rotating shaft 7 can wind the connecting iron wire 74, so that the sliding block 73 connected to the other end can move, and the position of the stirring blade 63 can be adjusted.

[0043] Those skilled in the art should understand that the discussion of the above any embodiment is only exemplary, and the technical features in the above embodiments or different embodiments can be combined under the idea of the present application, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of simplicity.

[0044] The present application is intended to cover all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations or equivalents that fall within the spirit and scope of the application are intended to be embraced by the claims.

Claims

1. An energy saving dual fuel regenerative burner comprising a main pipe (1) and an inner pipe (2), characterized in that, The inner pipeline (2) is coaxially arranged between the main pipeline (1), an outer wall of the main pipeline (1) is fixedly provided with a feeding pipe (11), and the feeding pipe (11) and a feeding port of the inner pipeline (2) form a double-channel feeding port; Further comprising an adjusting assembly, the adjusting assembly comprises a reversing valve (3) fixedly arranged on the main pipeline (1), the reversing valve (3) is fixedly connected with a pipeline one (31), a pipeline two (32) and an air outlet pipe (321), the pipeline one (31) and the pipeline two (32) are mirror arranged, the pipeline one (31) and the pipeline two (32) are fixedly provided with a collection box (33) at the end, and the two collection boxes (33) are fixedly provided with a heat accumulator (34) in the two collection boxes (33); Further comprising a reaction mechanism, the reaction mechanism comprises a reaction box (4) fixedly connected between the two collection boxes (33), the reaction box (4) and the collection box (33) are communicated through a connecting pipe (5), and the reaction box (4) is fixedly provided with an igniter (331) for igniting gas; The reaction box (4) is fixedly provided with two parallel supports (6), the two supports (6) are fixedly provided with a guide plate (61), the guide plate (61) is provided with a guide groove (62), the guide groove (62) is slidably provided with a stirring blade (63), and the reversing valve (3) is provided with a control assembly for controlling the position of the stirring blade (63); The control assembly comprises a rotating shaft (7) fixedly arranged in the reversing valve (3), one end of the rotating shaft (7) close to the reaction box (4) is fixedly provided with a take-up reel (71), the reaction box (4) is provided with a sliding groove (72), the sliding groove (72) is slidably provided with a sliding block (73), the sliding block (73) and the stirring blade (63) are rotatably connected, the outer circumferential surface of the sliding block (73) is fixedly provided with a connecting iron wire (74), and the other end of the connecting iron wire (74) is fixedly connected with the take-up reel (71); The outer wall of the reaction box (4) is provided with a wire outlet, and the wire outlet is located at the other end of the sliding groove (72); The diameter of the sliding block (73) is not less than the width of the guide groove (62), and the sliding block (73) and the support (6) are fixedly provided with a spring (75); The side wall of the sliding block (73) is fixedly provided with a connecting plate (8), and the connecting plate (8) is fixedly provided with a scraper (81), and the scraper (81) is attached to the inner wall of the reaction box (4).

2. The energy saving dual fuel regenerative burner as claimed in claim 1 wherein, The outer circumferential surface of the main pipeline (1) is fixedly provided with a flange (12), and the side wall of the flange (12) is provided with a threaded hole (13).

3. The energy efficient dual fuel regenerative burner as claimed in claim 1 wherein, The connecting pipe (5) fixedly arranged at the connection between the pipeline one (31) and the pipeline two (32) is provided with a flame nozzle (51), the flame nozzle (51) is arranged in a prism shape with a large bottom and a small top, a plurality of gas outlets (52) with equal aperture are arranged on the flame nozzle (51), and the plurality of gas outlets (52) are arranged in a circular shape.

4. The energy efficient dual fuel regenerative burner as claimed in claim 1 wherein, The main pipeline (1), the pipeline one (31), the pipeline two (32) and the gas outlet pipe (321) are arranged in a cross shape, the main pipeline (1) is adjacent to the pipeline one (31) and the pipeline two (32), and the main pipeline (1), the pipeline one (31), the pipeline two (32) and the gas outlet pipe (321) are connected through the reversing valve (3).

5. The energy efficient dual fuel regenerative burner as claimed in claim 1 wherein, A filter (9) is fixedly arranged at the pipe opening of the gas outlet pipe (321).

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