Flue gas circulation structure of sintering machine

Abstract

The utility model discloses a sintering machine flue gas circulation structure which comprises an adsorption filter box and a heat exchange box body, the top of the heat exchange box body is connected with a flue gas inlet pipe, the interior of the heat exchange box body is connected with a heat exchange coil water pipe, and the bottom in the adsorption filter box is provided with an adsorption water tank and a water purification cavity. The bottom of the heat exchange box is connected with an air guide pipe extending to the inner bottom of the adsorption water tank, an adsorption part filling layer is connected to the position, above the adsorption water tank, in the adsorption filter box, a condensing coil is connected to the position, above the adsorption part filling layer, in the adsorption filter box, and a plurality of sprayers are arranged above the adsorption part filling layer. Compared with the prior art, the flue gas treatment device has the advantages that flue gas can be efficiently treated through front-end heat exchange, rear-end water adsorption, spraying and condensation, the equipment quantity is reduced, the production and maintenance cost is reduced, and meanwhile, cold water can be fully utilized, energy consumption is reduced and the efficiency is improved through the arrangement of a single water pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas recycling equipment, in particular to a flue gas recycling structure of a sintering machine. Background Art

[0002] The sintering machine flue gas circulation system is an effective environmental protection and energy-saving technology, which is of great significance to improving the production efficiency of the sintering machine and reducing environmental pollution. Through flue gas collection, purification and recycling, it can reduce pollutant emissions, improve energy utilization efficiency and reduce production costs.

[0003] In the process of gas recycling, the most important are the front-end heat exchange and desulfurization filtration operations. In the prior art, the front-end operations of flue gas are generally handled separately, that is, multiple devices are connected for distributed processing. However, this treatment method has the problems of high energy consumption, high loss, high production cost and high subsequent maintenance. It is suitable for use in some large factories but not for use in smaller factories. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sintering machine fume circulation structure which reduces energy consumption and cost in view of the relatively large number of equipments proposed in the above background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a sintering machine flue gas circulation structure, including an adsorption filter box and a heat exchange box body, the top of the heat exchange box body is connected with a flue gas inlet pipe, the inside of the heat exchange box body is connected with a heat exchange disk water pipe, the bottom of the adsorption filter box is provided with an adsorption water tank and a clean water cavity, and the bottom of the heat exchange box body is connected with an air guide pipe extending to the bottom of the adsorption water tank;

[0006] The adsorption filter box is provided with an adsorption component filling layer above the adsorption water tank, the adsorption filter box is provided with supporting mesh plates above and below the adsorption component filling layer, the adsorption filter box is provided with a condensation coil above the adsorption component filling layer, the top of the adsorption filter box is provided with an air outlet pipe, the condensation coil is externally provided with a cold water delivery pipe, a water guide pipe is provided between the condensation coil and the heat exchange coil water pipe, and the heat exchange coil water pipe is provided with a drain pipe;

[0007] A filter channel is connected between the adsorption water tank and the water purification chamber, a particle filter cloth cover layer is connected in the filter channel, a water pump is connected to one side of the adsorption filter box, the water pump is connected to a water outlet pipe and a water pump extending into the water purification chamber, a main water branch pipe is connected to the end of the water outlet pipe, the main water branch pipe is connected to a plurality of auxiliary water branch pipes extending above the adsorption component filling layer, and a plurality of sprayers are connected to the bottom of the auxiliary water branch pipes.

[0008] Furthermore, the air guide pipe extends to the bottom of the adsorption tank and is connected to an air distribution plate. The bottom of the air distribution plate is provided with multiple air outlets to facilitate full contact between the flue gas and the neutralization adsorption liquid.

[0009] Furthermore, a temperature and humidity sensor is connected inside the air outlet pipe to facilitate temperature and humidity sensing of the exhaust gas.

[0010] Furthermore, one side of the adsorption filter box is connected to a plurality of maintenance doors.

[0011] Furthermore, a temperature sensor box is connected to the water pipe to facilitate the operation of sensing the water temperature in the water pipe.

[0012] Furthermore, an air supply and distribution plate is connected to one side of the adsorption filter box, and the air supply and distribution plate extends to the bottom above the particle filter cloth cover layer and is provided with multiple air jets to facilitate regular cleaning of the particle filter cloth cover layer.

[0013] Furthermore, a plurality of cleaning air distribution plates are connected to one side of the heat exchange box body, and the plurality of cleaning air distribution plates extend to the outside and are commonly connected to an air distribution main board. An outer side of the air distribution main board is connected to a gas pipeline, which is convenient for regular cleaning of the water pipes of the heat exchange disk.

[0014] The advantages of the sintering machine flue gas circulation structure of the utility model compared with the prior art are: the device can efficiently treat the flue gas through front-end heat exchange and rear-end water adsorption, spraying and condensation, reducing the amount of equipment and lowering the production and maintenance costs. At the same time, through the single water pipeline setting, it can make full use of cold water, reduce energy consumption and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the first structural schematic diagram of the smoke circulation structure of the sintering machine of the utility model.

[0016] Figure 2 This is the second structural schematic diagram of the smoke circulation structure of the sintering machine of the utility model.

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the smoke circulation structure of a sintering machine of the utility model.

[0018] As shown in the figure: 1. Adsorption filter box; 2. Heat exchange box body; 3. Smoke inlet pipe; 4. Heat exchange disk water pipe; 5. Air guide pipe; 6. Adsorption water tank; 7. Gas distribution plate; 8. Air outlet; 9. Clean water chamber; 10. Filter channel; 11. Particle filter cloth cover layer; 12. Adsorption component filling layer; 13. Support mesh plate; 14. Water pump; 15. Water pump; 16. Water outlet pipe; 17. Main water distribution pipe; 18. Auxiliary water distribution pipe; 19. Sprinkler; 20. Condensation coil; 21. Air outlet pipe; 22. Temperature and humidity sensor; 23. Maintenance door; 24. Cold water supply pipe; 25. Water guide pipe; 26. Temperature sensor box; 27. Drain pipe; 28. Gas distribution board; 29. ​​Jet nozzle; 30. Cleaning the distribution board; 31. Gas distribution main board; 32. Gas supply pipeline. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Combined with Figure 1-3 The flue gas circulation structure of the sintering machine includes an adsorption filter box 1 and a heat exchange box body 2. One side of the adsorption filter box 1 is connected with a plurality of maintenance doors 23. The top of the heat exchange box body 2 is connected with a flue gas inlet pipe 3. The inside of the heat exchange box body 2 is connected with a heat exchange disk water pipe 4, and the hot flue gas can be heat exchanged through the heat exchange disk water pipe 4. One side of the heat exchange box body 2 is connected with a plurality of cleaning air distribution plates 30. The cleaning air distribution plates 30 are generally arranged opposite to the gap of the heat exchange disk water pipe 4. The plurality of cleaning air distribution plates 30 extend to the outside and are commonly connected with an air distribution main board 31. The outer side of the air distribution main board 31 is connected with a gas supply pipeline 32. Gas supply can be carried out through the regular gas supply pipeline 32. Operation, in conjunction with the air distribution main board 31 and multiple cleaning air distribution plates 30, the gaps in the water pipes 4 of the heat exchange disk can be cleaned. The bottom of the adsorption filter box 1 is provided with an adsorption water tank 6 and a clean water chamber 9. Neutralizing adsorption liquid is placed in the adsorption water tank 6, and desulfurization or dust adsorption operations can be performed. The bottom of the heat exchange box body 2 is connected to an air duct 5 extending to the bottom of the adsorption water tank 6. The air duct 5 is set as slightly inclined as possible, tilted from the heat exchange box body 2 toward the adsorption filter box 1, so that dust is accumulated in the air duct 5. The air duct 5 extends to the bottom of the adsorption water tank 6 and is connected to an air distribution plate 7. The bottom of the air distribution plate 7 is provided with multiple air outlets 8, and the flue gas enters the adsorption water tank 6 for neutralization and adsorption operations.

[0021] During specific implementation: the smoke inlet pipe 3 can input the smoke operation, and the heat exchange and smoke temperature can be reduced through the heat exchange coil water pipe 4, but the dust in the smoke will accumulate in the gap of the heat exchange coil water pipe 4, and regular cleaning operations can be carried out by cleaning the air distribution plate 30, and the smoke enters the adsorption water tank 6 for neutralization and adsorption operations with the neutralization liquid.

[0022] Combined with Figure 3 , the adsorption filter box 1 is connected with an adsorption filling layer 12 above the adsorption water tank 6, the adsorption filter box 1 is connected with a support mesh plate 13 above and below the adsorption filling layer 12, a filter channel 10 is connected between the adsorption water tank 6 and the water purification chamber 9, and a particle filter cloth cover layer 11 is connected in the filter channel 10, and fine dust can be filtered through the particle filter cloth cover layer 11, and an air supply and air distribution plate 28 is connected to one side of the adsorption filter box 1, and the air supply and air distribution plate 28 extends to the bottom above the particle filter cloth cover layer 11 and is provided with a plurality of jets Port 29, the air supply and distribution plate 28 cooperates with the jet port 29 to regularly clean the particle filter cloth cover layer 11, one side of the adsorption filter box 1 is connected with a water pump 14, the water pump 14 is connected with a water outlet pipe 16 and a water pump 15 extending into the clean water chamber 9, the end of the water outlet pipe 16 is connected with a main water distribution pipe 17, the main water distribution pipe 17 is connected with a plurality of auxiliary water distribution pipes 18 extending to the top of the adsorption component filling layer 12, and the bottom of the auxiliary water distribution pipe 18 is connected with a plurality of sprayers 19, and the filtered liquid can be extracted by the water pump 14 for spraying operation.

[0023] During specific implementation: multiple sprayers 19 are arranged in the adsorption filter box 1, and dust removal and sulfur removal operations can be further performed through spraying. At the same time, an adsorption component filling layer 12 is arranged under the sprayer 19 to ensure sufficient contact between the gas and the spray liquid. The adsorbent is a hollow plastic component, which can increase the contact operation between the gas and the liquid.

[0024] A condensation coil 20 is connected to the adsorption filter box 1 above the adsorption component filling layer 12, an air outlet pipe 21 is connected to the top of the adsorption filter box 1, a temperature and humidity sensor 22 is connected to the air outlet pipe 21, a cold water pipe 24 is externally connected to the condensation coil 20, a water pipe 25 is connected between the condensation coil 20 and the heat exchange coil water pipe 4, a temperature sensor box 26 is connected to the water pipe 25, and a drain pipe 27 is connected to the heat exchange coil water pipe 4.

[0025] In specific implementation: a condensing coil is set at the top to ensure the condensation of water vapor, thereby further preventing fine dust from being discharged with the water vapor. The condensing coil 20 is connected to the heat exchange coil water pipe 4. The single water pipe setting can reduce energy consumption and reduce production cost operations.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A sintering machine flue gas circulation structure, comprising an adsorption filter box (1) and a heat exchange box (2), characterized in that: The top of the heat exchange box (2) is connected to a smoke inlet pipe (3), the interior of the heat exchange box (2) is connected to a heat exchange disk water pipe (4), the bottom of the adsorption filter box (1) is provided with an adsorption water tank (6) and a clean water chamber (9), and the bottom of the heat exchange box (2) is connected to an air guide pipe (5) extending to the bottom of the adsorption water tank (6); The adsorption filter box (1) is provided with an adsorption component filling layer (12) located above the adsorption water tank (6), the adsorption filter box (1) is provided with a support mesh plate (13) located above and below the adsorption component filling layer (12), the adsorption filter box (1) is provided with a condensation coil (20) located above the adsorption component filling layer (12), the top of the adsorption filter box (1) is provided with an air outlet pipe (21), the condensation coil (20) is externally connected with a cold water delivery pipe (24), a water guide pipe (25) is connected between the condensation coil (20) and the heat exchange coil water pipe (4), and the heat exchange coil water pipe (4) is connected with a drain pipe (27); A filter channel (10) is connected between the adsorption water tank (6) and the water purification chamber (9), a particle filter cloth cover layer (11) is connected in the filter channel (10), a water pump (14) is connected to one side of the adsorption filter box (1), the water pump (14) is connected to a water outlet pipe (16) and a water pump (15) extending into the water purification chamber (9), the end of the water outlet pipe (16) is connected to a main water branch pipe (17), the main water branch pipe (17) is connected to a plurality of auxiliary water branch pipes (18) extending to the top of the adsorption component filling layer (12), and the bottom of the auxiliary water branch pipe (18) is connected to a plurality of sprayers (19).

2. The sintering machine flue gas circulation structure according to claim 1 is characterized in that: The air guide pipe (5) extends to the bottom of the adsorption water tank (6) and is connected to an air distribution plate (7) at the bottom. The bottom of the air distribution plate (7) is provided with a plurality of air outlets (8).

3. The sintering machine flue gas circulation structure according to claim 1 is characterized in that: The air outlet pipe (21) is connected to a temperature and humidity sensor (22).

4. The sintering machine flue gas circulation structure according to claim 1, characterized in that: One side of the adsorption filter box (1) is connected to a plurality of maintenance doors (23).

5. The sintering machine flue gas circulation structure according to claim 1 is characterized in that: The water pipe (25) is connected to a temperature sensor box (26).

6. The sintering machine flue gas circulation structure according to claim 1, characterized in that: One side of the adsorption filter box (1) is connected to a gas supply and distribution plate (28), and the gas supply and distribution plate (28) extends to the bottom above the particle filter cloth cover layer (11) and is provided with a plurality of air injection ports (29).

7. The sintering machine flue gas circulation structure according to claim 1, characterized in that: A plurality of cleaning gas distribution plates (30) are connected to one side of the heat exchange box body (2); the plurality of cleaning gas distribution plates (30) extend to the outside and are commonly connected to a gas distribution main board (31); and a gas transmission pipeline (32) is connected to the outer side of the gas distribution main board (31).

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