CN221898272U - A flue gas waste heat recovery device for roller kiln used for straw baking - Google Patents

Abstract

The utility model relates to a flue gas waste heat recovery device of a roller kiln for baking rice straws, which comprises a filtering box body, a flue gas inlet pipe, a discharge pipe group, a water inlet pipe and a water outlet pipe. When the flue gas waste heat recovery device of the roller kiln for baking rice straws is used, the flue gas enters the filter box body through the connection arrangement of the flue gas inlet pipe and the flue gas outlet end of the roller kiln, and moves towards the exhaust pipe group along the flue gas guide flow channel, meanwhile, the flue gas is heated through direct contact of water inlet pipe water and the flue gas, dust contained in the flue gas is adsorbed, falls into the receiving groove and enters the storage tank, then the flue gas is discharged from the drain pipe to serve as heating water, heating water is supplied for a factory, so that external heating water supply is reduced, the filtered flue gas is discharged to places requiring hot gas such as a drying room through the exhaust pipe group, the drying room can be used for baking rice straws, sugarcane and other crops, the secondary utilization is realized, the flue gas heat is fully utilized, and the flue gas can be filtered and utilized.

Description

A flue gas waste heat recovery device for roller kiln used for straw baking

Technical Field

The utility model belongs to the technical field of straw baking, and in particular relates to a flue gas waste heat recovery device of a roller kiln for straw baking.

Background Art

The existing roller kiln generally uses compressed air to burn and heat heavy oil, diesel, kerosene and other materials during the production process. The thermal energy is not fully utilized during combustion, the energy consumption is large, and a certain amount of smoke is generated, and the smoke is usually at a high temperature of 600°-700°.

However, the public document CN209197492U roller kiln flue gas waste heat recovery device, by installing a heat energy converter on the chimney, transfers the heat in the flue gas to the water or air flowing in the heat recovery pipe, realizes waste heat transfer and recovery, is environmentally friendly and energy-saving, has a simple structure, and has low transformation cost, reducing the cost loss of the enterprise; staggered baffles are set in the heat energy converter to extend the flow path of the flue gas, so that the waste heat can be fully transferred to the heat exchange tube, and the waste heat conversion rate is improved. The water flow inside the heat exchanger is heated by the waste heat of the flue gas, and is introduced into the employee dormitory and other places through the pipeline to realize heat recovery. This processing method requires a large number of pipes to be erected from the factory area to guide the water flow out, which has a high cost of use, and cannot use high-temperature flue gas to assist material production. It is not practical enough, and the flue gas cannot be filtered. In addition, the subsequent baking of straw using the flue gas will be affected by the debris contained in the flue gas.

Utility Model Content

In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a flue gas waste heat recovery device for a roller kiln for straw baking, which can fully utilize the flue gas heat and filter the flue gas to prevent it from affecting subsequent utilization.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a flue gas waste heat recovery device for a roller kiln for straw baking, comprising a filter box, a smoke inlet pipe, an exhaust pipe group, a water inlet pipe and a drain pipe, the smoke inlet pipe and the exhaust pipe group are respectively installed on the corresponding two side walls of the filter box, and are connected to the filter box, the outlet of the exhaust pipe group is connected to a drying room, the filter box is provided with a smoke guide airflow channel along the smoke inlet pipe toward the exhaust pipe group, the water inlet pipe is installed on the top of the filter box, and a receiving groove for receiving water is installed in the smoke guide airflow channel, the drain pipe is installed on the side wall of the filter box, the drain pipe is located below the receiving groove, the filter box is provided with a storage water tank below the receiving groove, the receiving groove is provided with a guide pipe connected to the storage water tank, and the storage water tank is connected to the drain pipe.

The bottom of the receiving groove is inclined from high to low along the direction of the smoke inlet pipe toward the exhaust pipe group, and the guide pipe is arranged at the bottom of the bottom of the receiving groove.

A plurality of activated carbon filter support plates are installed at the bottom of the receiving tank.

Three activated carbon filter plates are arranged in the smoke guiding airflow channel.

The water outlet of the water inlet pipe is arranged in a rectangular shape.

A fan is provided at a position of the smoke-guiding airflow channel corresponding to the exhaust pipe group, and an output end of the fan is arranged toward the exhaust pipe group and is connected to the exhaust pipe group.

The discharge pipe group includes a plurality of discharge connecting pipes.

Universal wheels are installed below the filter box.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model discloses a flue gas waste heat recovery device for a roller kiln for straw baking. When in use, the flue gas is connected with the flue gas outlet end of the roller kiln through a flue gas inlet pipe, so that the flue gas enters the filter box and moves toward the exhaust pipe group along the smoke guide air flow channel. At the same time, water is introduced through the water inlet pipe to be directly in contact with the flue gas for heating, and dust contained in the flue gas is adsorbed and falls into a receiving groove and enters a storage water tank. Then, the dust is discharged from the drain pipe as heating water supply to provide heating for the factory area, thereby reducing the external heating supply. The filtered flue gas is discharged to the drying room and other places requiring hot air through the exhaust pipe group. The drying room can be used for baking crops such as straw and sugar cane for secondary utilization, so as to fully utilize the heat of the flue gas and filter and utilize the flue gas.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a recovery device of the utility model;

FIG. 2 is a schematic diagram of the cross-sectional structure of the recovery device of the present utility model.

Markings in the figure: 1. Filter box; 2. Smoke inlet pipe; 3. Exhaust pipe group; 4. Water inlet pipe; 5. Drain pipe; 6. Smoke air flow channel; 7. Receiving trough; 8. Storage water tank; 9. Guide pipe; 10. Activated carbon filter support plate; 11. Activated carbon filter plate; 12. Fan; 13. Universal wheel; 14. Drying room.

DETAILED DESCRIPTION

In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

As shown in Figures 1 and 2, this embodiment provides a flue gas waste heat recovery device for a roller kiln for straw baking, including a filter box 1, a smoke inlet pipe 2, an exhaust pipe group 3, a water inlet pipe 4 and a drain pipe 5. The smoke inlet pipe 2 and the exhaust pipe group 3 are respectively installed on the corresponding two side walls of the filter box 1 and are connected to the filter box 1. The outlet of the exhaust pipe group 3 is connected to a drying room 14. The filter box 1 is provided with a smoke guide airflow channel 6 along the smoke inlet pipe 2 toward the exhaust pipe group 3. The water inlet pipe 4 is installed on the top of the filter box 1, and a receiving groove 7 for receiving water is installed in the smoke guide airflow channel 6. The water outlet of the water inlet pipe 4 is rectangular, so that the water in the water inlet pipe 4 flows out in the form of a water curtain, so that it has more contact with the smoke to absorb dust. The drain pipe 5 is installed on the side wall of the filter housing 1, and the drain pipe 5 is arranged below the receiving groove 7. The filter housing 1 is provided with a storage water tank 8 below the receiving groove 7. The receiving groove 7 is provided with a guide pipe 9 connected to the storage water tank 8, and the storage water tank 8 is connected to the drain pipe 5. Specifically, a fan 12 is arranged at a position corresponding to the exhaust pipe group 3 of the smoke guide airflow channel 6, and the output end of the fan 12 is arranged toward the exhaust pipe group 3 and is connected to the exhaust pipe group 3. When in use, the smoke is connected to the smoke outlet of the roller kiln through the smoke inlet pipe 2, so that the smoke enters the filter box 1 and moves along the smoke guide air flow channel 6 toward the exhaust pipe group 3. At the same time, water is introduced through the water inlet pipe 4 to directly contact the smoke and be heated, and the dust contained in the smoke is adsorbed and falls into the receiving tank 7 and enters the storage water tank 8. It is then discharged from the drain pipe 5 as heating water supply to provide heating for the factory area, thereby reducing the external heating supply. The filtered smoke is discharged through the exhaust pipe group 3 to places that need hot air, such as the drying room 14. The drying room 14 can be used for baking crops such as straw and sugarcane for secondary utilization, thereby fully utilizing the heat of the smoke and being able to filter and utilize the smoke.

Furthermore, the bottom of the receiving tank 7 is tilted from high to low along the direction of the smoke inlet pipe 2 toward the exhaust pipe group 3, and the guide pipe 9 is arranged at the bottom of the bottom of the receiving tank 7. This makes it easier for the receiving tank 7 to flow into the storage water tank 8.

Furthermore, a plurality of activated carbon filter support plates 10 are installed at the bottom of the receiving tank 7. The activated carbon filter support plates 10 filter the dust contained in the water.

Furthermore, three activated carbon filter plates 11 are provided in the smoke guide airflow channel 6 to enhance the filtration of smoke.

Furthermore, the exhaust pipe group 3 includes a plurality of exhaust connecting pipes. Through the arrangement of the plurality of exhaust connecting pipes, the smoke can be discharged to a plurality of places requiring hot gas at the same time for full utilization.

Furthermore, a universal wheel 13 is installed below the filter housing 1. The universal wheel 13 facilitates the movement of the filter housing 1.

The above shows and describes the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims (8)

1. The utility model provides a straw toasts with flue gas waste heat recovery device of roller kiln which characterized in that: including filter box, advance flue gas pipe, discharge nest of tubes, inlet tube and drain pipe, advance flue gas pipe and discharge pipe group and install respectively on the corresponding both sides wall of filter box to with filter box intercommunication setting, the exit linkage of discharge nest of tubes has the stoving room, the filter box is equipped with the smoke guide air current passageway along advancing the flue gas pipe towards the discharge nest of tubes, the inlet tube is installed at the top setting of filter box, and installs the accepting groove of accepting water in the smoke guide air current passageway, the drain pipe is installed in the lateral wall setting of filter box, the drain pipe is located the below setting of accepting groove, the filter box is located the below of accepting groove and is equipped with the storage tank, accept the groove be equipped with the honeycomb duct of storage tank intercommunication, storage tank and drain pipe intercommunication set up.

2. The flue gas waste heat recovery device of a roller kiln for baking rice straws according to claim 1, which is characterized in that: the bottom of the receiving groove is obliquely arranged from high to low along the direction of the smoke inlet pipe towards the discharge pipe group, and the flow guide pipe is arranged at the bottommost position of the bottom of the receiving groove.

3. The flue gas waste heat recovery device of a roller kiln for baking rice straws according to claim 1, which is characterized in that: a plurality of active carbon filtering supporting plates are arranged at the bottom of the bearing groove.

4. The flue gas waste heat recovery device of a roller kiln for baking rice straws according to claim 1, which is characterized in that: and three activated carbon filter plates are arranged in the smoke guide airflow channel.

5. The flue gas waste heat recovery device of a roller kiln for baking rice straws according to claim 1, which is characterized in that: the water outlet of the water inlet pipe is rectangular.

6. The flue gas waste heat recovery device of a roller kiln for baking rice straws according to claim 1, which is characterized in that: the position of the smoke guide flow channel corresponding to the exhaust pipe group is provided with a fan, and the output end of the fan is arranged towards the exhaust pipe group and communicated with the exhaust pipe group.

7. The flue gas waste heat recovery device of a roller kiln for baking rice straws according to claim 1, which is characterized in that: the drain tube assembly includes a plurality of drain connection tubes.

8. The flue gas waste heat recovery device of a roller kiln for baking rice straws according to claim 1, which is characterized in that: and universal wheels are arranged below the filter box body.