Water storage precipitation device for recycling heat energy in aerated concrete production process

Abstract

The invention relates to a water storage and sedimentation device for recycling heat energy in the production process of aerated concrete, which comprises a water storage tank, a first partition plate, a second partition plate, a first sedimentation bin, a second sedimentation bin and a third sedimentation bin, the water storage tank is divided into the first sedimentation bin, the second sedimentation bin and the third sedimentation bin by the first partition plate and the second partition plate; the first precipitation bin is connected with a water inlet pipe, the water inlet pipe is connected with a condensate water pipeline at the bottom of the still kettle, a water level sensor is mounted in the first precipitation bin, a heating coil is mounted on the bottom side in the first precipitation bin, and the air inlet end of the heating coil is connected with an exhaust pipe of the still kettle; all condensate water discharged by the still kettle is collected in a centralized mode, waste water discharge is reduced, the environmental protection requirement is met, all the collected condensate water is subjected to precipitation filtration, then tail gas of the still kettle is collected to heat the condensate water again, the heated condensate water is used for pulping, pouring and the like, heat energy needed in the pouring and heating link is reduced, and energy conservation and consumption reduction are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat energy recovery and utilization, and particularly relates to a water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete. Background Art

[0002] Now, most aerated concrete production companies have been seeking breakthroughs in energy conservation and consumption reduction in the steam curing process. Among them, the condensate water and tail gas of the autoclave are directly discharged, resulting in waste of resources. At the same time, the condensate water of the autoclave belongs to wastewater, and the discharge problem involves environmental protection control. Summary of the Invention

[0003] The problem solved by the present invention is to provide a water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete, which solves the technical problems that most aerated concrete production companies have been seeking breakthroughs in energy conservation and consumption reduction in the steam curing process. Among them, the condensate water and tail gas of the autoclave are directly discharged, resulting in waste of resources. At the same time, the condensate water of the autoclave belongs to wastewater, and the discharge problem involves environmental protection control.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete, comprising a water storage tank, a first partition board, a second partition board, a first sedimentation tank, a second sedimentation tank and a third sedimentation tank. The water storage tank is divided into a first sedimentation tank, a second sedimentation tank and a third sedimentation tank by the first partition board and the second partition board. A water inlet pipe is connected to the first sedimentation tank, and the water inlet pipe is connected to the condensate water pipeline at the bottom of the autoclave. A water level sensor is installed in the first sedimentation tank. A heating coil is installed at the bottom side inside the first sedimentation tank, and the air inlet end of the heating coil is connected to the exhaust pipe of the autoclave. A first water port is opened on the first partition board, and a filter plate is slidably installed outside the first water port. A second water port is opened on the filter plate. An overflow pipe, a first water outlet pipe and a second water outlet pipe are connected to the third sedimentation tank. The first water outlet pipe is connected to a first water pump, the first water pump is connected to a first branch pipe, the second water outlet pipe is connected to a second water pump, and the second water pump is connected to a second branch pipe and a third branch pipe through a three-way control valve.

[0006] Preferably, a control valve is installed on the water inlet pipe, and opening and closing valves are installed at both the air inlet end and the air outlet end of the heating coil.

[0007] Preferably, a pneumatic cylinder is horizontally installed on the first partition board, and the telescopic end of the pneumatic cylinder is connected to the filter plate.

[0008] Preferably, mounting frames are symmetrically installed on the first partition board, and high-pressure spray heads facing the filter plate are installed inside the mounting frames.

[0009] Preferably, the two high-pressure spray heads are respectively connected to a connecting pipe, and the connecting pipe is connected to a high-pressure water pump.

[0010] Preferably, the water outlet end of the first branch pipe is located at the pulp making place.

[0011] Preferably, the water outlet end of the second branch pipe is located at the cutting place to wash the cutting circulating pit, and the water outlet end of the third branch pipe is located at the casting place to supply water for casting, water for aluminum powder, and water for the mixed pulp in the mixing tank.

[0012] Preferably, the specific operation steps of the device are as follows:

[0013] Introduce the bottom condensate water of the autoclave into the first sedimentation bin of the reservoir through the water inlet pipe and the control valve for preliminary sedimentation. Sense the water level through the water level sensor and control the opening and closing of the control valve to achieve automatic water replenishment of the first sedimentation bin. At this time, introduce the exhaust residual gas of the autoclave into the heating coil, and heat up the hot water in the first sedimentation bin through the heating coil. The water in the first sedimentation bin enters the second sedimentation bin through the first water outlet and the filter plate for secondary sedimentation, and finally enters the third sedimentation bin through the second water outlet, and overflows through the overflow pipe to avoid too high water level. Operate the first water pump to transport the hot water in the third sedimentation bin to the pulp making place for pulp making, transport the hot water through the second branch pipe by the second water pump to the cutting place to wash the cutting circulating pit, and transport it through the third branch pipe to the casting place to supply water for casting, water for aluminum powder, and water for the mixed pulp in the mixing tank. Drive the filter plate to translate through the air cylinder. During the translation process, transport water through the connecting pipe to the high-pressure spray head by the high-pressure water pump, and spray high-pressure water through the high-pressure spray head to clean the filter plate to avoid blockage of the filter plate.

[0014] The beneficial effects of the present invention are as follows: Collect the bottom condensate water of the autoclave, and at the same time heat up the collected condensate water by the exhaust residual gas of the autoclave, collect the thermal energy discharged from the autoclave, transport it to the pulp making and casting processes for reuse, save energy and reduce emissions, reduce the useless emission of thermal energy, improve the utilization rate of thermal energy, and thus save costs;

[0015] Collect all the condensate water discharged from the autoclave centrally to reduce wastewater discharge and meet the environmental protection requirements. Filter all the collected condensate water through precipitation, and then collect the tail gas of the autoclave to heat up the condensate water again. The heated condensate water is used for pulp making, casting, etc., reducing the thermal energy required in the casting heating link to achieve energy conservation and consumption reduction;

[0016] Filter the condensate water through the filter plate, drive the filter plate to translate through the air cylinder. During the translation process, transport water through the connecting pipe to the high-pressure spray head by the high-pressure water pump, and spray high-pressure water through the high-pressure spray head to clean the filter plate to avoid blockage of the filter plate. Description of the Drawings

[0017] Figure 1This is the first overall structural schematic diagram of the present invention;

[0018] Figure 2 This is the second overall structural schematic diagram of the present invention

[0019] Figure 3 This is the top view of the present invention;

[0020] Figure 4 This is the Figure 2 partial enlarged view of area A in the present invention.

[0021] Legend:

[0022] 1. Reservoir; 2. First partition board; 3. Second partition board; 4. First sedimentation tank; 5. Second sedimentation tank; 6. Third sedimentation tank; 7. Inlet pipe; 8. Control valve; 9. Water level sensor; 10. Heating coil; 11. Opening and closing valve; 12. First water outlet; 13. Pneumatic cylinder; 14. Filter plate; 15. Mounting rack; 16. High-pressure nozzle; 17. Connecting pipe; 18. Second water outlet; 19. Overflow pipe; 20. First outlet pipe; 21. First water pump; 22. First branch pipe; 23. Second outlet pipe; 24. Second water pump; 25. Three-way control valve; 26. Second branch pipe; 27. Third branch pipe. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The following are specific embodiments.

[0025] See Figures 1 to 4, a water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete, comprising a reservoir 1, a first partition 2, a second partition 3, a first sedimentation tank 4, a second sedimentation tank 5 and a third sedimentation tank 6. The reservoir 1 is divided into the first sedimentation tank 4, the second sedimentation tank 5 and the third sedimentation tank 6 by the first partition 2 and the second partition 3. A water inlet pipe 7 is connected to the first sedimentation tank 4, and the water inlet pipe 7 is connected to the condensate pipe at the bottom of the autoclave. A water level sensor 9 is installed in the first sedimentation tank 4, and a heating coil 10 is installed on the bottom side inside the first sedimentation tank 4. The air inlet end of the heating coil 10 is connected to the exhaust pipe of the autoclave. A first water port 12 is opened on the first partition 2, and a filter plate 14 is slidably installed outside the first water port 12. A second water port 18 is opened on the filter plate 14. An overflow pipe 19, a first water outlet pipe 20 and a second water outlet pipe 23 are connected to the third sedimentation tank 6. The first water outlet pipe 20 is connected to a first water pump 21, the first water pump 21 is connected to a first branch pipe 22, the second water outlet pipe 23 is connected to a second water pump 24, and the second water pump 24 is connected to a second branch pipe 26 and a third branch pipe 27 through a three-way control valve 25.

[0026] A control valve 8 is installed on the water inlet pipe 7, and opening and closing valves 11 are installed at both the air inlet end and the air outlet end of the heating coil 10 to realize the connection and closing of the pipeline.

[0027] A pneumatic cylinder 13 is horizontally installed on the first partition 2, and the telescopic end of the pneumatic cylinder 13 is connected to the filter plate 14. Mounting frames 15 are symmetrically installed on the first partition 2, and high-pressure spray nozzles 16 facing the filter plate 14 are installed inside the mounting frames 15. The two high-pressure spray nozzles 16 are respectively connected to a connecting pipe 17, and the connecting pipe 17 is connected to a high-pressure water pump. The condensate water is filtered by the filter plate 14, the filter plate 14 is driven to translate by the pneumatic cylinder 13, and during the translation process, water is conveyed to the high-pressure spray nozzles 16 through the connecting pipe 17 by the high-pressure water pump, and high-pressure water is sprayed out by the high-pressure spray nozzles 16 to clean the filter plate 14 to avoid blockage of the filter plate 14.

[0028] The water outlet end of the first branch pipe 22 is located at the pulp making place, the water outlet end of the second branch pipe 26 is located at the cutting place to wash the cutting circulating pit, and the water outlet end of the third branch pipe 27 is located at the casting place to supply water for casting, water for aluminum powder and water for the mixed pulp in the mixing tank. The condensate water at the bottom of the autoclave is collected, and at the same time, the collected condensate water is heated by the exhaust residual gas of the autoclave, the heat energy discharged from the autoclave is collected, and is transported to the pulp making and casting processes for reuse, saving energy and reducing emissions, reducing the useless emission of heat energy, improving the heat energy utilization rate, and thus saving costs.

[0029] The specific operation steps of this device are as follows:

[0030] The condensed water at the bottom of the autoclave is introduced into the first sedimentation bin 4 of the reservoir 1 through the water inlet pipe 7 and the control valve 8 for preliminary sedimentation. The water level sensor 9 senses the water level and controls the opening and closing of the control valve 8 to achieve automatic water replenishment of the first sedimentation bin 4. At this time, the exhaust residual gas of the autoclave is introduced into the heating coil 10, and the heating coil 10 heats up the hot water in the first sedimentation bin 4. The water in the first sedimentation bin 4 enters the second sedimentation bin 5 through the first water outlet 12 and the filter plate 14 for secondary sedimentation, and finally enters the third sedimentation bin 6 through the second water outlet 18 and overflows through the overflow pipe 19 to prevent the water level from being too high. The hot water in the third sedimentation bin 6 is pumped to the pulping area for pulping by the first water pump 21. The hot water is transported to the cutting area to wash the cutting circulating pit through the second branch pipe 26 by the second water pump 24, and is transported to the casting area through the third branch pipe 27 for use in casting water, aluminum powder water, and the water for the mixed pulp in the mixing tank. The filter plate 14 is driven to move horizontally by the pneumatic cylinder 13. During the horizontal movement, high-pressure water is transported to the high-pressure nozzle 16 through the connecting pipe 17 by the high-pressure water pump, and the high-pressure water is sprayed out by the high-pressure nozzle 16 to clean the filter plate 14 and prevent the filter plate 14 from being blocked.

[0031] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete, characterized in that, It includes a reservoir (1), a first partition board (2), a second partition board (3), a first sedimentation tank (4), a second sedimentation tank (5) and a third sedimentation tank (6). Inside the reservoir (1), it is divided into the first sedimentation tank (4), the second sedimentation tank (5) and the third sedimentation tank (6) by the first partition board (2) and the second partition board (3). A water inlet pipe (7) is connected to the first sedimentation tank (4), and the water inlet pipe (7) is connected to the condensate water pipeline at the bottom of the autoclave. A water level sensor (9) is installed inside the first sedimentation tank (4). A heating coil (10) is installed on the bottom side inside the first sedimentation tank (4), and the air inlet end of the heating coil (10) is connected to the exhaust pipe of the autoclave. A first water port (12) is opened on the first partition board (2), and a filter plate (14) is slidably installed outside the first water port (12). A second water port (18) is opened on the filter plate (14). An overflow pipe (19), a first water outlet pipe (20) and a second water outlet pipe (23) are connected to the third sedimentation tank (6). The first water outlet pipe (20) is connected to a first water pump (21), the first water pump (21) is connected to a first branch pipe (22), the second water outlet pipe (23) is connected to a second water pump (24), and the second water pump (24) is connected to a second branch pipe (26) and a third branch pipe (27) through a three-way control valve (25).

2. The water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete according to claim 1, wherein, A control valve (8) is installed on the water inlet pipe (7), and opening and closing valves (11) are installed at both the air inlet end and the air outlet end of the heating coil (10).

3. The water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete according to claim 2, characterized in that, A pneumatic cylinder (13) is horizontally installed on the first partition board (2), and the telescopic end of the pneumatic cylinder (13) is connected to the filter plate (14).

4. The water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete according to claim 3, characterized in that, Mounting brackets (15) are symmetrically installed on the first partition board (2), and high-pressure spray nozzles (16) facing the filter plate (14) are installed inside the mounting brackets (15).

5. A water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete according to claim 4, characterized in that, The two high-pressure spray nozzles (16) are respectively connected to a connecting pipe (17), and the connecting pipe (17) is connected to a high-pressure water pump.

6. The water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete according to claim 5, characterized in that, The water outlet end of the first branch pipe (22) is located at the pulp making place.

7. The water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete according to claim 6, characterized in that, The water outlet end of the second branch pipe (26) is located at the cutting place to wash the cutting circulating pit, and the water outlet end of the third branch pipe (27) is located at the casting place to supply water for casting, water for aluminum powder and water for the mixed pulp in the mixing tank.

8. The water storage and sedimentation device for heat energy recovery and utilization in the production process of aerated concrete according to claim 7, characterized in that, The specific operation steps of this device are as follows: The condensate water at the bottom of the autoclave is introduced into the first sedimentation bin (4) of the reservoir (1) through the water inlet pipe (7) and the control valve (8) for preliminary sedimentation. The water level sensor (9) senses the water level and controls the opening and closing of the control valve (8) to achieve automatic water replenishment in the first sedimentation bin (4). At this time, the exhaust residual gas of the autoclave is introduced into the heating coil (10), and the heating coil (10) heats up the hot water in the first sedimentation bin (4). The water in the first sedimentation bin (4) enters the second sedimentation bin (5) through the first water outlet (12) and the filter plate (14) for secondary sedimentation, and finally enters the third sedimentation bin (6) through the second water outlet (18), and overflows through the overflow pipe (19) to prevent the water level from being too high. The hot water in the third sedimentation bin (6) is pumped to the pulping area for pulping by the first water pump (21). The hot water is pumped to the cutting area to wash the cutting circulating pit through the second branch pipe (26) by the second water pump (24), and is pumped to the casting area through the third branch pipe (27) for use in casting water, aluminum powder water, and the water for the mixed pulp in the mixing tank. The filter plate (14) is driven to translate by the air cylinder (13). During the translation process, water is pumped through the connecting pipe (17) to the high-pressure nozzle (16) by the high-pressure water pump, and the high-pressure water is sprayed out by the high-pressure nozzle (16) to clean the filter plate (14) to prevent the filter plate (14) from being blocked.

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