Oxygen-enriched combustion device of rotary kiln

Abstract

The utility model relates to the technical field of oxygen-enriched calcination, and particularly discloses a rotary kiln oxygen-enriched combustion device which comprises a fan, a membrane device, a pump body, a gas-water separation system, a dehumidification system, a pressure stabilizing system, a preheating system and a rotary kiln. The filtering mechanism comprises a filtering box, a partition plate, a filtering cylinder, a first spraying pipe, a filtering plate and a second spraying pipe; the partition plate is vertically arranged in the filter box and divides the filter box into a first cavity and a second cavity; the filter cartridge is rotationally arranged in the first cavity, and the first spraying pipe is arranged in the filter cartridge in parallel; the filter plate is horizontally arranged in the second cavity, and the second spraying pipe is located above the filter plate; the entering air is filtered for multiple times through the filter cartridge and the filter plate, so that the air containing dust impurities is prevented from influencing the combustion-supporting effect, and the impurities are prevented from entering the membrane device; and sufficient combustion of the fuel can be better supported, and the loss of the fuel which is not burnt out is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen -enriched calcination technical field, specifically disclose a rotary kiln oxygen -enriched combustion device. BACKGROUND

[0002] Adopt oxygen -enriched combustion has the advantage of improving flame temperature, reducing the ignition point of fuel, accelerating the combustion speed, increasing the heat utilization rate, reducing the excess air coefficient, reducing the flue gas emission after combustion, improving the quality of cement;

[0003] The existing public patent a cement rotary kiln oxygen -enriched burner (publication number: CN209062425U) in the use process, although through the setting of filter mechanism, can effectively filter the impurities in the air, so as to ensure the subsequent combustion support effect, but in the filter mechanism use process, the upper end of filter screen is easy to attach dust, in the long-term process of not cleaning, easy to cause the blockage, influence filters;For this reason, the utility model provides a kind of cement rotary kiln oxygen -enriched combustion device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a rotary kiln oxygen -enriched combustion device can prevent filter cartridge and filter plate block, ensure the efficiency and quality of filter mechanism filtration;Can better support the full combustion of fuel, reduce the loss of unburnt fuel.

[0005] The utility model discloses a rotary kiln oxygen -enriched combustion device, including fan, membrane device, pump body, gas -water separation system, dehumidification system, pressure -stabilizing system, preheating system, rotary kiln, still include filter mechanism, the filter mechanism includes filter box, baffle, filter cartridge, first sprinkling pipe, filter plate, second sprinkling pipe, the baffle is vertically located in filter box, the baffle separates filter box into first cavity and second cavity, the filter cartridge is the hollow structure of two ends and presents the open mouth, the filter cartridge rotates and is located in first cavity, first sprinkling pipe is parallelly located in filter cartridge, and one end of first sprinkling pipe extends to the outside of filter box, the filter plate is horizontally located in second cavity, second sprinkling pipe is located above filter plate, and one end of second sprinkling pipe is communicated with the other end of first sprinkling pipe through pipeline, the filter box is equipped with the air inlet pipe and the air outlet pipe with first cavity and second cavity intercommunication, and the air inlet pipe and the air outlet pipe are located the outside of filter cartridge and above second sprinkling pipe respectively, and one end of air outlet pipe is communicated with fan input end through pipeline, the baffle is equipped with through -hole, and the through -hole is located the inside of filter cartridge and below filter plate respectively.

[0006] As a kind of rotary kiln oxygen -enriched combustion device of the utility model preferably, the filter box is equipped with transmission mechanism for driving filter cartridge rotation.

[0007] As a kind of rotary kiln oxygen-enriched combustion device preferred of the utility model, the transmission mechanism includes gear cover, driving wheel, motor;The gear cover is located on the circumferential outer wall of one end of filter cartridge, the gear cover is drivingly connected with driving wheel, the motor is located on the inside of filter box by base, and the output shaft of motor is coaxially fixed with driving wheel.

[0008] As a kind of rotary kiln oxygen-enriched combustion device preferred of the utility model, the bottom of first cavity and second cavity is funnel-shaped, and water outlet pipe is arranged at the center position of the bottom of first cavity and second cavity.

[0009] As a kind of rotary kiln oxygen-enriched combustion device preferred of the utility model, water collecting tank is arranged below filter box and communicated with water outlet pipe, and filter residue plate is arranged on water collecting tank and can be pulled out.

[0010] As a kind of rotary kiln oxygen-enriched combustion device preferred of the utility model, water pump is arranged on water collecting tank, the input end and output end of water pump are communicated with water collecting tank and first spraying pipe through pipeline respectively, and the input end of water pump is located below filter residue plate.

[0011] As a kind of rotary kiln oxygen-enriched combustion device preferred of the utility model, water inlet and drain pipe are arranged on water collecting tank.

[0012] The utility model has the advantages of:

[0013] The utility model discloses a filter cartridge and filter plate are filtered to the air entering multiple times, avoid containing dust impurity's air to influence combustion-supporting effect, and prevent the impurity from entering membrane device;And filter cartridge can rotate, and the cleaning of the washing of filter cartridge and filter plate by first spraying pipe and second spraying pipe can prevent filter cartridge and filter plate from being blocked, guarantee the efficiency and quality of the filtration of filter mechanism;Can better support the full combustion of fuel, reduce the loss of unburnt fuel. ACCURACY

[0014] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawing needed to be used in specific embodiment or prior art description. In all drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, various elements or parts are not necessarily drawn according to actual proportion.

[0015] Figure 1 It is the structure schematic view of the utility model.

[0016] Figure 2 It is the structure schematic view of the filter mechanism of the utility model.

[0017] Figure 3 It is the structure schematic view of filter cartridge and gear cover of the utility model.

[0018] Figure 4 It is the structure schematic view of the side view of the air inlet pipe and the filter box of the utility model.

[0019] Figure 5 It is the structure schematic view of the driving wheel and the motor of the utility model.

[0020] Marked in the figure, 1, fan;2, membrane device;3, pump body;4, gas-water separation system;5, dehumidification system;6, pressure stabilizing system;7, preheating system;8, rotary kiln;9, filtering mechanism;10, filter box;11, partition;12, filter cartridge;13, first spraying pipe;14, filter plate;15, second spraying pipe;16, first cavity;17, second cavity;18, air inlet pipe;19, air outlet pipe;20, through hole;21, gear sleeve;22, driving wheel;23, motor;24, water outlet pipe;25, water collecting tank;26, filter residue plate;27, water pump;28, water replenishing port;29, drain pipe. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and specific embodiment, to help understanding the contents of the utility model. The method used in the utility model is conventional method if no special provision, the raw materials and devices used are conventional market products if no special provision.

[0022] Please refer to Figures 1-5 A rotary kiln oxygen-enriched combustion device, including fan 1, membrane device 2, pump body 3, gas-water separation system 4, dehumidification system 5, pressure stabilizing system 6, preheating system 7, rotary kiln 8, still including filtering mechanism 9, filtering mechanism 9 including filter box 10, partition 11, filter cartridge 12, first spraying pipe 13, filter plate 14, second spraying pipe 15, partition 11 is vertically arranged in filter box 10, and partition 11 divides filter box 10 into first cavity 16 and second cavity 17, filter cartridge 12 is the hollow structure of two ends and is open, and filter cartridge 12 is rotationally arranged in first cavity 16, and first spraying pipe 13 is parallelly arranged in filter cartridge 12, and one end of first spraying pipe 13 extends to the outside of filter box 10, filter plate 14 is horizontally arranged in second cavity 17, and second spraying pipe 15 is located above filter plate 14, and one end of second spraying pipe 15 is communicated with the other end of first spraying pipe 13 through pipeline, and filter box 10 is provided with air inlet pipe 18 and air outlet pipe 19 communicated with first cavity 16 and second cavity 17, and air inlet pipe 18 and air outlet pipe 19 are located outside filter cartridge 12 and above second spraying pipe 15 respectively, and one end of air outlet pipe 19 is communicated with the input end of fan 1 through pipeline, and partition 11 is provided with through hole 20, and through hole 20 is located inside filter cartridge 12 and below filter plate 14 respectively.

[0023] In the embodiment: the input end and the output end of the fan 1 are communicated with the air outlet pipe 19 on the filtering mechanism 9 and the air inlet of the membrane device 2 respectively, the input end and the output end of the pump body 3 are communicated with the air outlet of the membrane device 2 and the air inlet of the gas-water separation system 4 through pipes respectively, the air inlet and the air outlet of the dehumidification system 5 are communicated with the air outlet of the gas-water separation system 4 and the air inlet of the pressure stabilizing system 6 respectively, the preheating system 7 is communicated with the air outlet of the pressure stabilizing system 6 and the air inlet of the rotary kiln 8 through pipes and oxygen-enriched nozzles respectively; the fan 1 is started, the suction force is generated in the filtering box 10, the air outside is introduced into the first cavity 16 through the air inlet pipe 18, and the air in the first cavity 16 is filtered through the filtering cylinder 12 and flows into the second cavity 17 from the through hole 20, when the airflow flows upwards, the secondary filtration is carried out through the filtering plate 14, and the air flows out of the filtering box 10 from the air outlet pipe 19; the filtering cylinder 12 is washed from inside to outside through the first spraying pipe 13, the impurities filtered on the outer wall of the filtering cylinder 12 can be filtered out, the filtering cylinder 12 can rotate in the first cavity 16, when the filtering cylinder 12 rotates, the first spraying pipe 13 can comprehensively wash and clean the filtering cylinder 12, the filtering cylinder 12 is prevented from being blocked and affecting the filtering efficiency, at the same time, the second spraying pipe 15 washes the filtering plate 14, the impurities on the filtering plate 14 are easily washed and cleaned, the number of meshes on the filtering plate 14 is smaller than that on the filtering cylinder 12, the effect of multiple filtration is realized, the filtering efficiency and quality of the filtering mechanism 9 are ensured, the air containing dust and impurities is prevented from affecting the combustion-supporting effect and entering the membrane device 2; the air filtered in the filtering mechanism 9 finally enters the membrane device 2 through the fan 1, the high polymer membrane material in the membrane device 2 separates oxygen and nitrogen in the air, the nitrogen is directly discharged, the oxygen is transported into the gas-water separation system 4 through the pump body 3, the water vapor in the oxygen is separated in the gas-water separation system 4 and then is transported into the dehumidification system 5 for secondary adsorption, the oxygen-enriched air is prevented from containing water, the treated oxygen-enriched air enters the pressure stabilizing system 6, the pressure stabilizing system 6 monitors and adjusts the pressure of the oxygen-enriched air in real time, so that the pressure is kept in the set range, finally the oxygen-enriched air enters the preheating system 7 and is transported into the rotary kiln 8 through the oxygen-enriched nozzle on the preheating system 7, the preheating system 7 can heat the oxygen-enriched air to a certain temperature, so that the oxygen-enriched air can be mixed with fuel more quickly and ignited when entering the rotary kiln 8, thereby improving the combustion efficiency of the rotary kiln 8.

[0024] As a technical optimization scheme of the utility model, the filtering box 10 is equipped with a transmission mechanism for driving the filtering cylinder 12 to rotate; the transmission mechanism comprises a gear sleeve 21, a driving wheel 22 and a motor 23; the gear sleeve 21 is arranged on the circumferential outer wall of one end of the filtering cylinder 12, the gear sleeve 21 is in transmission connection with the driving wheel 22, and the motor 23 is arranged on the inner part of the filtering box 10 through a motor base, and the output shaft of the motor 23 is coaxially fixedly connected with the driving wheel 22.

[0025] In the embodiment, the motor 23, the driving wheel 22 and the gear sleeve 21 are driven, and the filter cartridge 12 is further rotated, so that the first spraying pipe 13 can clean the filter cartridge 12.

[0026] As a technical optimization scheme of the utility model, the bottom of the first cavity 16 and the second cavity 17 is funnel-shaped, and a water outlet pipe 24 is arranged at the center position of the bottom of the first cavity 16 and the second cavity 17.

[0027] In the embodiment, the water in the first cavity 16 and the second cavity 17 can be easily drained through the water outlet pipe 24, and the bottom of the first cavity 16 and the second cavity 17 is funnel-shaped, so that the water flow is guided, and residual water is avoided.

[0028] As a technical optimization scheme of the utility model, a water collecting tank 25 is arranged below the filter box 10 and is communicated with the water outlet pipe 24, and a filter residue plate 26 is arranged on the water collecting tank 25.

[0029] In the embodiment, the water collecting tank 25 can collect the water flowing out of the water outlet pipe 24, the filter residue plate 26 can filter the water entering the water collecting tank 25, and the filter residue plate 26 can be pulled out, so that the filter residue plate 26 can be cleaned regularly.

[0030] As a technical optimization scheme of the utility model, a water pump 27 is arranged on the water collecting tank 25, the input end and the output end of the water pump 27 are respectively communicated with the water collecting tank 25 and the first spraying pipe 13 through pipelines, and the input end of the water pump 27 is located below the filter residue plate 26.

[0031] In the embodiment, the water pump 27 can be started to recycle the water in the water collecting tank 25, so that the waste of water resources is reduced.

[0032] As a technical optimization scheme of the utility model, a water supplement opening 28 and a drain pipe 29 are arranged on the water collecting tank 25.

[0033] In the embodiment, the water supplement opening 28 can easily add water to the filter box 10, and the drain pipe 29 can be opened to replace the water in the filter box 10.

[0034] The working principle and use process of the utility model are as follows:

[0035] The fan 1 is started, suction force is generated in the filter box 10, air outside enters the first cavity 16 through the air inlet pipe 18, and the air in the first cavity 16 flows out into the second cavity 17 through the filter of the filter cylinder 12 from the through hole 20, when the air flow flows upwards, the secondary filtration of the filter plate 14 is passed through, and the filter box 10 is flowed out from the air outlet pipe 19; the filter cylinder 12 is washed from inside to outside through the first spray pipe 13, the impurities filtered on the outer wall of the filter cylinder 12 can be filtered out, the filter cylinder 12 can rotate in the first cavity 16, when the filter cylinder 12 rotates, the first spray pipe 13 is easy to comprehensively wash and clean the filter cylinder 12, the filter cylinder 12 is prevented from being blocked to affect the filtering efficiency, meanwhile, the second spray pipe 15 washes the filter plate 14, and the impurities on the filter plate 14 are easy to wash and clean; the mesh number of the filter plate 14 is less than that of the filter cylinder 12, the multiple filtering effect is realized, the filtering efficiency and quality of the filtering mechanism 9 are ensured, the air containing dust and impurities is prevented from affecting the combustion supporting effect, and the impurities are prevented from entering the membrane device 2; fuel can be better supported to be fully combusted, and loss of unburned fuel is reduced.

[0036] In the description of the utility model, need understanding is, the term "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "intermediate" etc. Indicated orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicated or implied that the device or element must have a specific orientation, a specific orientation structure and operation, therefore, it cannot be understood as a limitation on the utility model.

[0037] The above-mentioned is only a specific embodiment of the utility model, and cannot limit the range of the utility model, so the replacement of equivalent components or equivalent changes and modifications made according to the utility model patent protection range should still belong to the scope covered by the utility model claims.

Claims

1. A rotary kiln oxygen-enriched combustion device, comprising a blower (1), a membrane device (2), a pump body (3), a gas-water separation system (4), a dehumidification system (5), a pressure stabilizing system (6), a preheating system (7), and a rotary kiln (8); characterized in that: It also includes a filtration mechanism (9), which includes a filter box (10), a partition (11), a filter cylinder (12), a first spray pipe (13), a filter plate (14), and a second spray pipe (15). The partition (11) is vertically disposed inside the filter box (10), and the partition (11) divides the filter box (10) into a first chamber (16) and a second chamber (17). The filter cylinder (12) is a hollow structure with open ends. The filter cylinder (12) is rotatably disposed inside the first chamber (16), and the first spray pipe (13) is disposed parallel to the filter cylinder (12), with one end of the first spray pipe (13) extending to the outside of the filter box (10). The filter plate (14) is horizontally disposed inside the second chamber (15). Inside the cavity (17), the second spray pipe (15) is located above the filter plate (14), and one end of the second spray pipe (15) is connected to the other end of the first spray pipe (13) through a pipe; the filter box (10) is provided with an air inlet pipe (18) and an air outlet pipe (19) that are connected to the first cavity (16) and the second cavity (17), and the air inlet pipe (18) and the air outlet pipe (19) are located outside the filter cylinder (12) and above the second spray pipe (15), respectively. One end of the air outlet pipe (19) is connected to the input end of the fan (1) through a pipe; the partition plate (11) is provided with a through hole (20), and the through hole (20) is located inside the filter cylinder (12) and below the filter plate (14), respectively.

2. The rotary kiln oxygen-enriched combustion device according to claim 1, characterized in that: The filter box (10) is provided with a transmission mechanism for driving the filter cylinder (12) to rotate.

3. The rotary kiln oxygen-enriched combustion device according to claim 2, characterized in that: The transmission mechanism includes a gear sleeve (21), a drive wheel (22), and a motor (23). The gear sleeve (21) is located on the outer circumference of one end of the filter cylinder (12). The gear sleeve (21) is connected to the drive wheel (22) in a transmission connection. The motor (23) is located inside the filter box (10) through a base, and the output shaft of the motor (23) is coaxially fixed to the drive wheel (22).

4. The rotary kiln oxygen-enriched combustion device according to claim 1, characterized in that: The bottom of the first cavity (16) and the second cavity (17) are both funnel-shaped, and a water outlet pipe (24) is provided at the center of the bottom of the first cavity (16) and the second cavity (17).

5. The rotary kiln oxygen-enriched combustion device according to claim 4, characterized in that: The filter box (10) is provided with a water collection box (25) connected to the water outlet pipe (24) below it, and a pull-out filter plate (26) is provided on the water collection box (25).

6. The rotary kiln oxygen-enriched combustion device according to claim 5, characterized in that: The water collection tank (25) is equipped with a water pump (27). The input end and output end of the water pump (27) are connected to the water collection tank (25) and the first spray pipe (13) through pipes, respectively. The input end of the water pump (27) is located below the filter plate (26).

7. The rotary kiln oxygen-enriched combustion device according to claim 5, characterized in that: The water collection tank (25) is equipped with a water inlet (28) and a drain pipe (29).

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