A waste heat recovery device for autoclaving and curing of concrete blocks

Abstract

The utility model discloses a waste heat recovery device for autoclaving of concrete blocks, which relates to the technical field of autoclaving, and comprises a base, a curing kettle is fixed on the top surface of the base, an air outlet pipe is connected to the curing kettle and is connected to a circular tube for treating waste gas, driving gears are rotatably connected to the two side walls of the circular tube, and driven gears are rotatably connected to the side walls at the meshing position, a first liquid dispensing pipe and a second liquid dispensing pipe are respectively fixedly connected to the driving gears and the driven gears on both sides, a plurality of atomizing nozzles are fixed to the first liquid dispensing pipe and the second liquid dispensing pipe, a first liquid outlet is provided at the bottom of the circular tube, the first liquid dispensing pipe is driven to rotate by the rotation of the driving gear, and the second liquid dispensing pipe can be synchronously rotated by meshing with the driven gear, and the atomizing nozzle can purify the waste gas in the circular tube in a circular shape, thereby achieving the effect of quickly and fully contacting and reacting the chemical absorbent with the waste gas, and solving the pollution problem caused by directly discharging the waste gas in the traditional method.

Description

Technical Field

[0001] The utility model relates to the technical field of autoclave curing, in particular to a concrete block autoclave curing waste heat recovery device. Background Art

[0002] Autoclaved aerated concrete blocks are a kind of porous concrete products made of fly ash, lime, cement, gypsum, slag and other main raw materials, with appropriate amount of gas generating agent, regulator, bubble stabilizer, and through processes such as batching, mixing, pouring, static stopping, cutting and high-pressure steaming. Autoclaved aerated concrete blocks are an excellent new type of building material with advantages such as environmental protection. Prefabricated autoclaved aerated concrete block assembly slabs have the advantages of saving finished product stacking space, saving masonry labor, reducing construction operations, speeding up on-site construction progress, and improving construction efficiency.

[0003] However, the existing curing device does not have components for treating high-temperature exhaust gas. Directly discharging it into the air will cause air pollution, and the waste heat of the high-temperature exhaust gas is not utilized, which is a waste. Therefore, a concrete block autoclave curing waste heat recovery device is needed to solve the above technical problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a concrete block autoclave curing waste heat recovery device, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A waste heat recovery device for autoclaving of concrete blocks comprises a base, a curing kettle is fixed to the top surface of the base, an air outlet pipe is connected to the curing kettle and the circular tube for waste gas treatment is connected, driving gears are rotatably connected to the two side walls of the circular tube, a driven gear is rotatably connected to the side wall at the meshing position of the driving gear, a first liquid distributing pipe and a second liquid distributing pipe are fixedly connected to the driving gear and the driven gear on both sides respectively, a plurality of atomizing nozzles are fixed to the first liquid distributing pipe and the second liquid distributing pipe, and a first liquid outlet is provided at the bottom of the circular tube.

[0007] As a further solution of the utility model, a liquid collecting box is fixed on the outer wall of the circular tube at the position of the first liquid outlet, the bottom surface of the liquid collecting box is an inclined surface, a second liquid outlet is opened on the liquid collecting box, torsion springs are fixedly connected to the inner walls on both sides of the second liquid outlet, and a liquid blocking plate is fixedly connected between the torsion springs on both sides.

[0008] As a further solution of the utility model, a liquid storage tank for storing chemical absorbents is fixed on the top surface of the base attached to the outer wall of the circular tube, a suction pump is fixed at the bottom of the liquid storage tank, a delivery hose is fixed on the suction pump and is fixedly connected to the first liquid dispensing tube and the second liquid dispensing tube.

[0009] As a further solution of the utility model, a curing chamber and a cavity are provided inside the curing kettle, a spiral tube is fixedly provided in the cavity, and a liquid inlet end and a liquid outlet end of the spiral tube both protrude from the cavity to the outside of the curing kettle.

[0010] As a further solution of the utility model, ball valves are fixedly connected to the pipe body at the liquid inlet end and the liquid outlet end of the spiral pipe located outside the curing kettle.

[0011] As a further solution of the utility model, the liquid outlet end of the spiral tube is connected to a water tank.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. When the high-temperature exhaust gas in the curing kettle is generated, it first heats the cold water in the spiral tube in the cavity. After the residual heat is exhausted, it is transported to the circular tube through the outlet pipe. The ball valve at the liquid outlet end is opened to store the heated water in the water tank for use in the next step, and the reheating time can be omitted to save resources.

[0014] 2. After the exhaust gas enters the circular tube, the driving gears on both sides rotate and mesh with the driven gears, so that the first liquid dispensing tube and the second liquid dispensing tube can make circular motions in opposite directions, thereby accelerating the filling of the chemical absorbent in the circular tube, so that the chemical absorbent and the exhaust gas can be more fully integrated for purification. After the purification is completed, the chemical absorbent liquefies and falls into the liquid collecting tank. Pushing the liquid blocking plate to rotate the torsion spring can make the liquid blocking plate flip over to open the second liquid outlet. The inclined surface at the bottom of the liquid collecting tank plays a guiding role, so that the purified exhaust gas is discharged together with the chemical absorbent. Stop pushing the liquid blocking plate and it will reset itself under the action of the torsion spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of a concrete block autoclave curing waste heat recovery device of the utility model. Figure 1 ;

[0016] Figure 2 It is a schematic diagram of the explosion structure of a waste heat recovery device for autoclaving and curing of concrete blocks according to the utility model;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of a concrete block autoclave curing waste heat recovery device of the utility model. Figure 2 .

[0019] In the figure: 1. base; 2. curing kettle; 3. air outlet pipe; 4. round pipe; 5. driving gear; 6. driven gear; 7. first liquid dispensing pipe; 8. second liquid dispensing pipe; 9. atomizing nozzle; 10. first liquid outlet; 11. liquid collecting box; 12. second liquid outlet; 13. torsion spring; 14. liquid blocking plate; 15. liquid storage box; 16. suction pump; 17. delivery hose; 18. curing chamber; 19. cavity; 20. spiral tube; 21. ball valve; 22. water tank. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-4 As shown, a waste heat recovery device for autoclaving curing of concrete blocks comprises a base 1, a curing kettle 2 is fixed on the top surface of the base 1, an air outlet pipe 3 is connected to the curing kettle 2 and is connected to a circular tube 4 for waste gas treatment, driving gears 5 are rotatably connected to the two side walls of the circular tube 4, and a driven gear 6 is rotatably connected to the side wall at the meshing position of the driving gear 5, a first liquid distributing pipe 7 and a second liquid distributing pipe 8 are respectively fixedly connected to the driving gears 5 and the driven gears 6 on both sides, a plurality of atomizing nozzles 9 are fixed to the first liquid distributing pipe 7 and the second liquid distributing pipe 8, a first liquid outlet 10 is provided at the bottom of the circular tube 4, the driving gear 5 is meshed with the driven gear 6, and the rotation directions of the two are opposite, and the first liquid distributing pipe 7 and the second liquid distributing pipe 8 follow the rotation to fill the chemical absorbent in the circular tube 4 faster, so that the chemical absorbent is in more sufficient contact with the waste gas, thereby accelerating the purification efficiency.

[0022] In this embodiment, a liquid collecting box 11 is fixed on the outer wall of the circular tube 4 at the position of the first liquid outlet 10, and the bottom surface of the liquid collecting box 11 is an inclined surface. A second liquid outlet 12 is opened on the liquid collecting box 11, and torsion springs 13 are fixedly connected to the inner walls on both sides of the second liquid outlet 12, and a liquid blocking plate 14 is fixedly connected between the torsion springs 13 on both sides. The bottom surface of the liquid collecting box 11 is an inclined surface, which can avoid the retention of chemical absorbent and play a guiding role. Pushing the liquid blocking plate 14 can rotate the torsion spring 13, and at the same time, the liquid blocking plate 14 flips open to expose the second liquid outlet 12, and the liquid blocking plate 14 can automatically return to its original position when the force is stopped.

[0023] In this embodiment, a liquid storage tank 15 for storing chemical absorbent is fixed on the top surface of the base 1 attached to the outer wall of the circular tube 4, and a suction pump 16 is fixed at the bottom of the liquid storage tank 15. A delivery hose 17 is fixed on the suction pump 16 and is fixedly connected to the first liquid dispensing tube 7 and the second liquid dispensing tube 8. The suction pump 16 can absorb the chemical absorbent in the liquid storage tank 15, and the delivery hose 17 can avoid breaking when rotating with the first liquid dispensing tube 7 and the second liquid dispensing tube 8.

[0024] In this embodiment, a curing chamber 18 and a cavity 19 are provided inside the curing kettle 2. A spiral tube 20 is fixed inside the cavity 19. The liquid inlet and outlet ends of the spiral tube 20 both protrude from the cavity 19 to the outside of the curing kettle 2. The cold water in the spiral tube 20 can absorb the temperature of the high-temperature exhaust gas to heat the cold water and then flow into the water tank 22, which can save subsequent heating time and required resources.

[0025] In this embodiment, a ball valve 21 is fixedly connected to the liquid inlet end and the liquid outlet end of the spiral tube 20 located outside the curing kettle 2. The liquid outlet end of the spiral tube 20 is connected to the water tank 22. The ball valve 21 can control the opening of the liquid inlet end of the spiral tube 20 to let in liquid and the liquid outlet end to discharge liquid into the water tank 22 for storage.

[0026] It should be noted that the utility model is a waste heat recovery device for autoclaving of concrete blocks. When in use, the high-temperature exhaust gas in the curing kettle 2 first heats the cold water in the spiral tube 20 in the cavity 19 when it is generated. After the waste heat is exhausted, it is transported to the round tube 4 through the outlet pipe 3. The ball valve 21 at the liquid outlet end is opened to store the heated water in the water tank 22 for use in the next step, and the reheating time can be saved to save resources. After the exhaust gas enters the round tube 4, the driving gears 5 on both sides rotate to mesh with the driven gears 6, that is, The first liquid distributing tube 7 and the second liquid distributing tube 8 can be made to make circular motions in opposite directions, so as to speed up the filling of the chemical absorbent in the circular tube 4, so that the chemical absorbent and the exhaust gas can be more fully integrated for purification. After the purification is completed, the chemical absorbent is liquefied and falls into the liquid collecting box 11. The liquid blocking plate 14 is pushed to rotate the torsion spring 13, so that the liquid blocking plate 14 can be flipped to open the second liquid outlet 12. The inclined surface at the bottom of the liquid collecting box 11 plays a guiding role, so that the purified exhaust gas is discharged together with the chemical absorbent. When the liquid blocking plate 14 is stopped, it will reset itself under the action of the torsion spring 13.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A waste heat recovery device for autoclaving of concrete blocks, comprising a base (1), characterized in that: A curing kettle (2) is fixed on the top surface of the base (1); an air outlet pipe (3) is connected to the curing kettle (2) and is connected to a circular tube (4) for waste gas treatment; driving gears (5) are rotatably connected to the two side walls of the circular tube (4); a driven gear (6) is rotatably connected to the side walls at the meshing position of the driving gear (5); a first liquid dispensing tube (7) and a second liquid dispensing tube (8) are respectively fixedly connected to the driving gear (5) and the driven gear (6) on both sides; a plurality of atomizing nozzles (9) are fixed to the first liquid dispensing tube (7) and the second liquid dispensing tube (8); and a first liquid outlet (10) is provided at the bottom of the circular tube (4).

2. A concrete block autoclave curing waste heat recovery device according to claim 1, characterized in that: A liquid collecting box (11) is fixed on the outer wall of the circular tube (4) at the position of the first liquid outlet (10); the bottom surface of the liquid collecting box (11) is an inclined surface; a second liquid outlet (12) is provided on the liquid collecting box (11); torsion springs (13) are fixedly connected to the inner walls on both sides of the second liquid outlet (12); and a liquid blocking plate (14) is fixedly connected between the torsion springs (13) on both sides.

3. The waste heat recovery device for autoclaving of concrete blocks according to claim 1 is characterized in that: A liquid storage tank (15) for storing chemical absorbent is fixed on the top surface of the base (1) attached to the outer wall of the circular tube (4), a suction pump (16) is fixed on the bottom of the liquid storage tank (15), a delivery hose (17) is fixed on the suction pump (16) and is fixedly connected to the first liquid dispensing tube (7) and the second liquid dispensing tube (8).

4. The device for recovering waste heat from autoclaving of concrete blocks according to claim 1, characterized in that: The curing kettle (2) is provided with a curing chamber (18) and a cavity (19) inside, a spiral tube (20) is fixedly provided inside the cavity (19), and a liquid inlet end and a liquid outlet end of the spiral tube (20) both protrude from the cavity (19) to the outside of the curing kettle (2).

5. A concrete block autoclave curing waste heat recovery device according to claim 4, characterized in that: Ball valves (21) are fixedly connected to the spiral tube (20) at the liquid inlet end and the liquid outlet end located outside the curing kettle (2).

6. A waste heat recovery device for autoclaving of concrete blocks according to claim 5, characterized in that: The liquid outlet end of the spiral tube (20) is connected to the water tank (22).

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