Heat energy recovery equipment for pressure type spray drying tower

Abstract

The invention relates to the technical field of heat energy recovery, in particular to heat energy recovery equipment for a pressure type spray drying tower, the heat energy recovery equipment for the pressure type spray drying tower comprises a bottom cavity, a conveying pipe and an upper cavity, the upper cavity is fixedly connected to the upper end of the bottom cavity, and one side wall of the bottom cavity is fixedly connected with a water storage cavity; the conveying pipe penetrates through the upper cavity, a partition plate arranged in a T shape is fixedly connected into the bottom cavity, a plurality of filter bags are fixedly connected to the partition plate, a sliding plate is slidably connected to one side wall of the bottom cavity, an exhaust cavity is fixedly connected to the sliding plate, a through pipe is fixedly connected to the sliding plate, the through pipe is communicated with the exhaust cavity, and the filter bags are fixedly connected to the through pipe. The sponge can be compressed along with continuous movement of the sleeve, so that water in the sponge is squeezed out, the outer surface of the conveying pipe is kept in a dry state, and preheating of gas in the conveying pipe by hot gas is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of heat energy recovery, and particularly relates to a heat energy recovery device for a pressure spray drying tower. Background Art

[0002] A pressure spray dryer is a device that can simultaneously complete drying and granulation. According to process requirements, the pressure, flow rate, and size of the spray holes of the feed liquid pump can be adjusted to obtain spherical particles of a required size ratio. Its working process is that the feed liquid is input under high pressure by a diaphragm pump, and sprayed into mist-like droplets, and then flows downward in parallel with hot air. Most of the powder particles are collected at the discharge port at the bottom of the tower. The waste gas and its tiny powder are separated by a cyclone separator. The waste gas is discharged by a suction fan, and the powder is collected by a pollination cylinder provided at the lower end of the cyclone separator.

[0003] In the prior art, after the heat energy discharged from the drying tower is recovered, the gas newly entering the drying tower is preheated in advance. After the preheated gas is transported through a pipeline and heated by a heater, it then enters the drying tower to achieve the effect of energy conservation and emission reduction. When the hot gas contacts the pipeline for transporting the external gas, it will condense into water droplets and adhere to the pipeline, resulting in a poor preheating effect of the hot gas on the gas in the pipeline. At the same time, the method of recycling the hot gas is relatively single, resulting in a low recycling rate of the recovered heat energy. Summary of the Invention

[0004] The purpose of the present invention is to solve the following disadvantages in the prior art: when the hot gas contacts the pipeline for transporting the external gas, it will condense into water droplets and adhere to the pipeline, resulting in a poor preheating effect of the hot gas on the gas in the pipeline. At the same time, the method of recycling the hot gas is relatively single, resulting in a low recycling rate of the recovered heat energy. Thus, a heat energy recovery device for a pressure spray drying tower is proposed.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: A heat energy recovery device for a pressure spray drying tower, the heat energy recovery device for the pressure spray drying tower includes a bottom cavity, a conveying pipe, and an upper cavity. The upper cavity is fixedly connected to the upper end of the bottom cavity. One side wall of the bottom cavity is fixedly connected with a water storage cavity, and the conveying pipe penetrates through the upper cavity; A partition arranged in a T shape is fixedly connected inside the bottom cavity. A plurality of filter bags are fixedly connected to the partition. A slide plate is slidably connected to one side wall of the bottom cavity. An exhaust cavity is fixedly connected to the slide plate. A through pipe is fixedly connected to the slide plate and is communicated with the exhaust cavity. A swinging member is installed inside the bottom cavity. The swinging member includes an air inlet cavity, a rack plate, a gear, and a support rod. A chute is formed on the side wall of the bottom cavity. The air inlet cavity is slidably connected inside the chute. The rack plate is arranged in an L shape and is slidably connected to one side wall of the bottom cavity. The gear is rotatably connected to the bottom cavity and is meshed with the rack plate. One end of the support rod is fixedly connected to the gear, and the other end of the support rod is slidably connected to the slide plate; A filter plate is fixedly connected inside the upper cavity. A sleeve is slidably connected to the upper surface of the filter plate. A sponge is fixedly connected to the inner wall of the sleeve and is slidably connected to the outer surface of the conveying pipe. The upper cavity is communicated with the bottom cavity through a communicating pipe.

[0006] Preferably, a ring is fixedly communicated with the upper end of the water storage cavity. Round holes are formed on the inner wall of the ring. The ring is communicated with the upper cavity. An L-shaped plate is slidably connected inside the water storage cavity. A second spring is fixedly connected between the L-shaped plate and the bottom wall of the water storage cavity. A limiting block arranged in a right trapezoid shape is fixedly connected to the inner wall of the water storage cavity. The L-shaped plate is slidably connected to the limiting block.

[0007] Preferably, a support plate is fixedly connected to the bottom wall of the water storage cavity. A T-shaped plate is slidably connected between the support plate and one inner wall of the water storage cavity. A thrust spring is arranged between the upper end of the T-shaped plate and the bottom wall of the water storage cavity. A through hole is formed on one side wall at the lower end of the water storage cavity. The lower end of the T-shaped plate is slidably connected to the outer side wall of the air inlet cavity. A sealing plate is slidably connected to the outer side wall of the bottom cavity. The sealing plate is fixedly connected to the air inlet cavity.

[0008] Preferably, a through groove is formed on the outer side wall of the water storage cavity. A cross plate is slidably connected inside the through groove. One end of the cross plate is fixedly connected to the side wall of the L-shaped plate. A vertical plate is fixedly connected to the cross plate and is slidably connected to the outer side wall of the water storage cavity. A baffle is slidably connected to the end of the cross plate away from the water storage cavity.

[0009] Preferably, an airbag is fixedly communicated with one side of the upper cavity. The baffle is slidably connected to the end of the airbag away from the upper cavity. A square hole is formed at the end of the airbag away from the upper cavity.

[0010] Preferably, convex blocks are respectively arranged at both ends of one side wall of the upper cavity. A through pipe is fixedly communicated with the airbag. A switch is installed on the through pipe. A fixing ring is fixedly connected to the through pipe. A torsion spring is fixedly connected between the fixing ring and the switch.

[0011] Preferably, a square cavity is fixedly connected to the connecting pipe. A reciprocating screw rod is rotatably connected to the side wall of the square cavity. A plurality of fan blades are annularly arranged on the outer surface of one end of the reciprocating screw rod located in the square cavity.

[0012] Preferably, a sleeve cavity is fixedly connected to one side of the upper cavity. A moving plate is slidably connected to the sleeve cavity. The moving plate is threadedly connected to the reciprocating screw rod. An installation plate is fixedly connected to the upper end of the moving plate. The installation plate is slidably connected to the outer surface of the conveying pipe. The upper surface of the airbag is slidably connected to the lower surface of the sleeve cavity.

[0013] Preferably, a push rod is slidably connected to one side wall of the upper cavity. One end of the push rod is fixedly connected to the sleeve, and the other end of the push rod is fixedly connected to the installation plate.

[0014] Preferably, the bottom wall of the upper cavity is inclined, and a water flow port is formed in one side wall of the upper cavity close to the water storage cavity.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The hot gas inside the drying tower can enter the bottom cavity through the air inlet cavity. The gas carrying dust is filtered by the filter bag, so that the dust adheres to the outer surface of the filter bag. The gas purified by the filter bag enters the upper cavity through the connecting pipe, which can preheat the gas in the conveying pipe. After the preheated gas enters the heater, the power consumption of the heater can be reduced, playing a role in energy conservation and emission reduction, and at the same time playing a role in recycling the heat energy discharged from the drying tower.

[0016] 2. As the reciprocating screw rod rotates, it can drive the moving plate, the installation plate, the push rod and the sleeve to move horizontally in a reciprocating manner. Since condensate water will form and adhere to the conveying pipe when the hot gas contacts the conveying pipe, when the sponge moves with the sleeve, it can adsorb the condensate water. Whenever the sponge moves into the rings at both ends of the upper cavity, as the sleeve continues to move, the sponge can be compressed, so that the water in the sponge is squeezed out, keeping the outer surface of the conveying pipe dry, which is beneficial to the preheating of the gas in the conveying pipe by the hot gas.

[0017] 3. The gas inside the inflated airbag is blown into the lower filter bag through the through pipe and the exhaust cavity. After the gas with a certain pressure quickly enters the filter bag, the filter bag expands rapidly, so as to shake off the dust adhering to the outer surface of the filter bag to the bottom of the bottom cavity for collection, making the recycled heat energy play a role in cleaning the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a front structural schematic diagram of a heat energy recovery device for a pressure type spray drying tower proposed by the present invention; Figure 2Schematic diagram of the internal structure of the upper cavity of a heat energy recovery device for a pressure spray drying tower proposed by the present invention; Figure 3 Schematic diagram of the internal structure of the bottom cavity of a heat energy recovery device for a pressure spray drying tower proposed by the present invention; Figure 4 Schematic diagram of the rack plate structure of a heat energy recovery device for a pressure spray drying tower proposed by the present invention.

[0019] Figure 5 For Figure 4 Partial enlarged structure diagram of A in Figure 6 Schematic diagram of the internal structure of the water storage cavity of a heat energy recovery device for a pressure spray drying tower proposed by the present invention; Figure 7 Schematic diagram of the fixed ring structure of a heat energy recovery device for a pressure spray drying tower proposed by the present invention; Figure 8 Schematic diagram of the fan blade structure of a heat energy recovery device for a pressure spray drying tower proposed by the present invention; Figure 9 Schematic diagram of the vertical plate structure of a heat energy recovery device for a pressure spray drying tower proposed by the present invention; Figure 10 Schematic diagram of the exhaust cavity structure of a heat energy recovery device for a pressure spray drying tower proposed by the present invention.

[0020] In the figure: 1 bottom cavity, 2 sealing plate, 3 air inlet cavity, 4 T-shaped plate, 5 water storage cavity, 6 vertical plate, 7 cross plate, 8 upper cavity, 9 connecting pipe, 10 push rod, 11 mounting plate, 12 conveying pipe, 13 moving plate, 14 baffle, 15 airbag, 16 switch, 17 through pipe, 18 support rod, 19 gear, 20 rack plate, 21 sleeve cavity, 22 filter plate, 23 sponge, 24 sleeve, 25 sliding plate, 26 filter bag, 27 partition plate, 28 exhaust cavity, 29 square cavity, 30 first spring, 31 reciprocating lead screw, 32 fan blade, 33 L-shaped plate, 34 second spring, 35 support plate, 36 limit block, 37 ring, 38 fixed ring, 39 torsion spring. Detailed implementation manners

[0021] 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 of the embodiments.

[0022] Refer to Figures 1-10, A heat energy recovery device for a pressure type spray drying tower, including a bottom cavity 1, a conveying pipe 12 and an upper cavity 8. The upper cavity 8 is fixedly connected to the upper end of the bottom cavity 1. The bottom wall of the upper cavity 8 is provided with a heat insulation layer. One side wall of the bottom cavity 1 is fixedly connected with a water storage cavity 5. The conveying pipe 12 penetrates the upper cavity 8 and is used to convey external gas into the drying tower. The bottom wall of the upper cavity 8 is inclined. A water flowing port is opened on one side wall of the upper cavity 8 close to the water storage cavity 5.

[0023] Inside the bottom cavity 1, a partition 27 arranged in a T shape is fixedly connected. A plurality of filter bags 26 are fixedly connected to the partition 27. The plurality of filter bags 26 are divided into two rows, with three filter bags 26 in each row. The two rows of filter bags 26 are separated by the partition 27. One side wall of the bottom cavity 1 is slidably connected with a slide plate 25. The slide plate 25 is slidably connected to the outer surface of the bottom cavity 1 and can seal the bottom cavity 1 when the exhaust cavity 28 moves. An exhaust cavity 28 is fixedly connected to the slide plate 25. A through pipe 17 is fixedly connected to the slide plate 25. The upper end of the through pipe 17 is made of metal material, and the through pipe 17 below the switch 16 is made of soft material. The through pipe 17 is communicated with the exhaust cavity 28. A swinging component is installed inside the bottom cavity 1. The swinging component includes an air inlet cavity 3, a rack plate 20, a gear 19, and a support rod 18. A chute is opened on the side wall of the bottom cavity 1. The air inlet cavity 3 is slidably connected in the chute and can reciprocate horizontally in the chute. One end of the air inlet cavity 3 close to the rack plate 20 is arranged as an inclined surface. The rack plate 20 is arranged in an L shape and is slidably connected to one side wall of the bottom cavity 1. The gear 19 is rotatably connected to the bottom cavity 1 and is meshed with the rack plate 20. One end of the support rod 18 is fixedly connected to the gear 19. The support rod 18 is fixed on one side of the center of the gear 19. Therefore, when the gear 19 rotates, the slide plate 25 can be pushed to reciprocate horizontally through the support rod 18. The other end of the support rod 18 is slidably connected to the slide plate 25, and the upper end of the support rod 18 reciprocates horizontally with the slide plate 25.

[0024] The upper end of the water storage cavity 5 is fixedly communicated with a ring 37. Circular holes are opened on the inner wall of the ring 37. The ring 37 is communicated with the upper cavity 8. When the sponge 23 is pushed into the ring 37 by the sleeve 24, the sponge 23 is squeezed. The condensed water in the sponge 23 flows into the water storage cavity 5 through the circular holes. An L-shaped plate 33 is slidably connected inside the water storage cavity 5. The two sides of the L-shaped plate 33 are respectively slidably and sealedly connected inside the water storage cavity 5. A second spring 34 is fixedly connected between the L-shaped plate 33 and the bottom wall of the water storage cavity 5. A limiting block 36 arranged in a right trapezoid shape is fixedly connected to the inner wall of the water storage cavity 5. The L-shaped plate 33 is slidably connected to the limiting block 36.

[0025] A support plate 35 is fixedly connected to the bottom wall of the water storage cavity 5. A magnetic block is installed at the upper end of the support plate 35, and the suction force of the magnetic block is less than the elastic force of the second spring 34. A T-shaped plate 4 is slidably connected between the support plate 35 and one inner wall of the water storage cavity 5. A thrust spring is provided between the upper end of the T-shaped plate 4 and the bottom wall of the water storage cavity 5 for the reset movement of the T-shaped plate 4. A through hole is formed in one side wall at the lower end of the water storage cavity 5. The lower end of the T-shaped plate 4 is slidably connected to the outer side wall of the air inlet cavity 3. A sealing plate 2 is slidably connected to the outer side wall of the bottom cavity 1, and the sealing plate 2 is fixedly connected to the air inlet cavity 3. A through groove is formed in the outer side wall of the water storage cavity 5. A cross plate 7 is slidably connected in the through groove. One end of the cross plate 7 is fixedly connected to the side wall of the L-shaped plate 33. A vertical plate 6 is fixedly connected to the cross plate 7, and the vertical plate 6 is slidably connected to the outer side wall of the water storage cavity 5. One end of the cross plate 7 away from the water storage cavity 5 is slidably connected to a baffle 14. When the baffle 14 moves, it can close the square hole on the airbag 15, and when the baffle 14 resets, it no longer closes the airbag 15. One side of the upper cavity 8 is fixedly communicated with an airbag 15. The baffle 14 is slidably connected to one end of the airbag 15 away from the upper cavity 8. A square hole is formed in one end of the airbag 15 away from the upper cavity 8.

[0026] A filter plate 22 is fixedly connected in the upper cavity 8. A sleeve 24 is slidably connected to the upper surface of the filter plate 22. A sponge 23 is fixedly connected to the inner wall of the sleeve 24, and the sponge 23 is slidably connected to the outer surface of the delivery pipe 12. The upper cavity 8 is communicated with the bottom cavity 1 through a connecting pipe 9. A suction fan is installed on the connecting pipe 9. Two ends of one side wall of the upper cavity 8 are respectively provided with convex blocks. A through pipe 17 is fixedly communicated with the airbag 15. A switch 16 is installed on the through pipe 17. The switch 16 is the same as the switch of a faucet in the prior art. Rotating the switch 16 will open the through pipe 17. A fixing ring 38 is fixedly connected to the through pipe 17, and a torsion spring 39 is fixedly connected between the fixing ring 38 and the switch 16.

[0027] A square cavity 29 is fixedly communicated with the connecting pipe 9. A reciprocating lead screw 31 is rotatably connected to the side wall of the square cavity 29. A fan blade 32 is annularly arranged on the outer surface of one end of the reciprocating lead screw 31 in the square cavity 29. When the air flow passes through the connecting pipe 9, it can push the fan blade 32 to move and drive the reciprocating lead screw 31 to rotate. A sleeve cavity 21 is fixedly connected to one side of the upper cavity 8. A moving plate 13 is slidably connected in the sleeve cavity 21. The moving plate 13 is threadedly connected to the reciprocating lead screw 31. An installation plate 11 is fixedly connected to the upper end of the moving plate 13, and the installation plate 11 is slidably connected to the outer surface of the delivery pipe 12. The upper surface of the airbag 15 is slidably connected to the lower surface of the sleeve cavity 21. A push rod 10 is slidably connected to one side wall of the upper cavity 8. One end of the push rod 10 is fixedly connected to the sleeve 24, and the other end of the push rod 10 is fixedly connected to the installation plate 11.

[0028] In the present invention, during use, first, the end of the air inlet chamber 3 is connected to the discharge port of the drying tower. The hot gas inside the drying tower can enter the bottom chamber 1 through the air inlet chamber 3. The gas carrying dust is filtered by the filter bag 26, so that the dust adheres to the outer surface of the filter bag 26. The gas purified by the filter bag 26 enters the upper chamber 8 through the connecting pipe 9. The outside gas is connected to the heater of the drying tower through the conveying pipe 12. After being heated by the heater, the gas in the conveying pipe 12 enters the drying tower. When the purified hot gas enters the upper chamber 8 and encounters the conveying pipe 12, it will preheat the gas in the conveying pipe 12. The preheated gas enters the heater for heating and then is transported to the drying tower, which can reduce the power consumption of the heater, play a role in energy conservation and emission reduction, and at the same time play a role in recycling the heat energy discharged from the drying tower.

[0029] An exhaust fan is installed on the connecting pipe 9. When the exhaust fan is working, it can suck and push the hot gas in the bottom chamber 1 into the upper chamber 8. The hot gas extracted and pressurized will pass through the connecting pipe 9. At this time, the hot gas can push the fan blade 32 and drive the reciprocating lead screw 31 to rotate. As the reciprocating lead screw 31 rotates, it can drive the moving plate 13, the mounting plate 11, the push rod 10 and the sleeve 24 to move horizontally back and forth. Since condensate will form and adhere to the conveying pipe 12 when the hot gas contacts the relatively low-temperature conveying pipe 12, when the sponge 23 moves with the sleeve 24, it can adsorb the condensate. Whenever the sponge 23 moves into the rings 37 at both ends of the upper chamber 8, as the sleeve 24 continues to move, the sponge 23 can be compressed, so that the water in the sponge 23 is squeezed out and flows into the water storage chamber 5 and is located between the L-shaped plate 33 and the limit block 36. Through the reciprocating movement of the sleeve 24 and the sponge 23, the condensate on the outer surface of the conveying pipe 12 in the upper chamber 8 is continuously scraped off and collected in the water storage chamber 5. As the water accumulates more and more between the L-shaped plate 33 and the limit block 36, under the action of gravity, the L-shaped plate 33 will be pressed down to compress the second spring 34. Since the gas enters the water storage chamber 5 in pulses, when the L-shaped plate 33 moves down to fit the upper end of the support plate 35, the water between the L-shaped plate 33 and the limit block 36 will enter the space between the support plate 35 and the inner wall of the water storage chamber 5 and is located above the T-shaped plate 4. Under the action of the gravity of the water, the T-shaped plate 4 will be pushed down to stretch the tension spring. As the T-shaped plate 4 moves down, it can push the air inlet chamber 3 to move from one end of the bottom chamber 1 to the other end. Since the partition plate 27 divides the two rows of filter bags 26, at this time, the air inlet chamber 3 just moves from the lower side of one side of the filter bags 26 to the lower side of the other side. As the air inlet chamber 3 moves, it can push the rack plate 20 to slide to the right, driving the gear 19 to rotate counterclockwise. Since the lower end of the support rod 18 is fixed to one side of the gear 19, when the support rod 18 rotates with the gear 19, it can push the slide plate 25 and the exhaust chamber 28 to slide in the bottom chamber 1, so that the exhaust chamber 28 and the air inlet chamber 3 are arranged in an interleaved manner. The air inlet chamber 3 is located below one row of filter bags 26, and the exhaust chamber 28 is located above the other row of filter bags 26.

[0030] Meanwhile, as the L-shaped plate 33 moves downward, it can drive the horizontal plate 7 and the baffle 14 to move downward. During the downward movement of the L-shaped plate 33, it will drive the horizontal plate 7 and the baffle 14 to move downward. The baffle 14 can close the square hole on the airbag 15. At this time, the gas entering the upper chamber 8 cannot be discharged through the square hole. As the gas in the upper chamber 8 increases, it can stretch the airbag 15. After the airbag 15 expands, it can push the baffle 14 to slide to the right on the horizontal plate 7. When the gear 19 drives the slide plate 25 and the through pipe 17 to move on one side of the bottom chamber 1 through the support rod 18, when the through pipe 17 moves to one end of the bottom chamber 1, the switch 16 on the through pipe 17 will be limited by the convex block on the bottom chamber 1, so that the switch 16 is opened. The gas inside the expanded airbag 15 is blown into the lower filter bag 26 through the through pipe 17 and the exhaust chamber 28. After the gas with a certain pressure quickly enters the filter bag 26, the filter bag 26 expands rapidly, so as to realize that the dust attached to the outer surface of the filter bag 26 is shaken off to the bottom of the bottom chamber 1 for collection, and the recovered heat energy plays a role in cleaning the filter bag 26.

[0031] After the water between the L-shaped plate 33 and the limit block 36 is drained, the L-shaped plate 33 moves upward and resets under the elastic force of the second spring 34. Due to the large frictional force between the L-shaped plate 33 and the limit block 36, the upward movement speed of the L-shaped plate 33 is slow. As the L-shaped plate 33 moves upward, it can push the baffle 14 to move upward through the horizontal plate 7, and no longer seals the square hole on one side of the airbag 15, so that the gas in the upper chamber 8 is discharged. At the same time, when the T-shaped plate 4 moves to the lower side of the through hole on the water storage chamber 5, the water in the water storage chamber 5 is discharged to the outside through the through hole. After the water on the upper side of the T-shaped plate 4 is drained, the T-shaped plate 4 moves upward and resets under the pull of the tension spring, and pulls the intake chamber 3 to move back. When the intake chamber 3 no longer exerts a squeezing force on the rack plate 20, the rack plate 20 makes a reset movement under the pulling force of the first spring 30, and drives the gear 19 to rotate clockwise. The gear 19 drives the slide plate 25 to reset through the support rod 18.

[0032] The above is only a 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, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A heat energy recovery device for a pressure spray drying tower, characterized in that, The heat energy recovery device for the pressure type spray drying tower includes a bottom cavity (1), a conveying pipe (12) and an upper cavity (8). The upper cavity (8) is fixedly connected to the upper end of the bottom cavity (1). One side wall of the bottom cavity (1) is fixedly connected with a water storage cavity (5). The conveying pipe (12) penetrates through the upper cavity (8). A partition plate (27) arranged in a T shape is fixedly connected in the bottom cavity (1). A plurality of filter bags (26) are fixedly connected to the partition plate (27). A sliding plate (25) is slidably connected to one side wall of the bottom cavity (1). An exhaust cavity (28) is fixedly connected to the sliding plate (25). A through pipe (17) is fixedly connected to the sliding plate (25). The through pipe (17) is communicated with the exhaust cavity (28). A swinging component is installed in the bottom cavity (1). The swinging component includes an air inlet cavity (3), a rack plate (20), a gear (19), and a support rod (18). A chute is formed in the side wall of the bottom cavity (1). The air inlet cavity (3) is slidably connected in the chute. The rack plate (20) is arranged in an L shape and is slidably connected to one side wall of the bottom cavity (1). The gear (19) is rotatably connected to the bottom cavity (1) and is meshed with the rack plate (20). One end of the support rod (18) is fixedly connected to the gear (19), and the other end of the support rod (18) is slidably connected to the sliding plate (25). A filter plate (22) is fixedly connected in the upper cavity (8). A sleeve (24) is slidably connected to the upper surface of the filter plate (22). A sponge (23) is fixedly connected to the inner wall of the sleeve (24). The sponge (23) is slidably connected to the outer surface of the conveying pipe (12). The upper cavity (8) is communicated with the bottom cavity (1) through a communicating pipe (9).

2. The heat energy recovery device for a pressure type spray drying tower according to claim 1, wherein A circular ring (37) is fixedly communicated with the upper end of the water storage cavity (5). A round hole is formed in the inner wall of the circular ring (37). The circular ring (37) is communicated with the upper cavity (8). An L-shaped plate (33) is slidably connected in the water storage cavity (5). A second spring (34) is fixedly connected between the L-shaped plate (33) and the bottom wall of the water storage cavity (5). A limiting block (36) arranged in a right trapezoid shape is fixedly connected to the inner wall of the water storage cavity (5). The L-shaped plate (33) is slidably connected to the limiting block (36).

3. The heat energy recovery device for a pressure spray drying tower according to claim 1, wherein, A support plate (35) is fixedly connected to the bottom wall of the water storage cavity (5). A T-shaped plate (4) is slidably connected between the support plate (35) and one inner wall of the water storage cavity (5). A thrust spring is arranged between the upper end of the T-shaped plate (4) and the bottom wall of the water storage cavity (5). A through hole is formed in one side wall at the lower end of the water storage cavity (5). The lower end of the T-shaped plate (4) is slidably connected to the outer side wall of the air inlet cavity (3). A sealing plate (2) is slidably connected to the outer side wall of the bottom cavity (1). The sealing plate (2) is fixedly connected to the air inlet cavity (3).

4. The thermal energy recovery device for a pressure spray drying tower according to claim 1, wherein A through groove is formed in the outer side wall of the water storage cavity (5), a transverse plate (7) is slidably connected in the through groove, one end of the transverse plate (7) is fixedly connected to the side wall of the L-shaped plate (33), a vertical plate (6) is fixedly connected to the transverse plate (7), the vertical plate (6) is slidably connected to the outer side wall of the water storage cavity (5), and one end of the transverse plate (7) away from the water storage cavity (5) is slidably connected to a baffle plate (14).

5. The heat energy recovery device for a pressure spray drying tower according to claim 4, wherein, One side of the upper cavity (8) is fixedly communicated with an air bag (15), the baffle plate (14) is slidably connected to one end of the air bag (15) away from the upper cavity (8), and a square hole is formed in one end of the air bag (15) away from the upper cavity (8).

6. The heat energy recovery device for a pressure type spray drying tower according to claim 5, characterized in that, Convex blocks are respectively arranged at both ends of one side wall of the upper cavity (8), a through pipe (17) is fixedly communicated with the air bag (15), a switch (16) is installed on the through pipe (17), a fixing ring (38) is fixedly connected to the through pipe (17), and a torsion spring (39) is fixedly connected between the fixing ring (38) and the switch (16).

7. The heat energy recovery device for a pressure type spray drying tower according to claim 5, characterized in that, A square cavity (29) is fixedly communicated with the connecting pipe (9), a reciprocating lead screw (31) is rotatably connected to the side wall of the square cavity (29), and fan blades (32) are annularly arranged on the outer surface of one end of the reciprocating lead screw (31) in the square cavity (29).

8. The heat energy recovery device for a pressure type spray drying tower according to claim 7, characterized in that, One side of the upper cavity (8) is fixedly connected with a sleeve cavity (21), a moving plate (13) is slidably connected in the sleeve cavity (21), the moving plate (13) is threadedly connected to the reciprocating lead screw (31), an installation plate (11) is fixedly connected to the upper end of the moving plate (13), the installation plate (11) is slidably connected to the outer surface of the conveying pipe (12), and the upper surface of the air bag (15) is slidably connected to the lower surface of the sleeve cavity (21).

9. The heat energy recovery device for a pressure type spray drying tower according to claim 8, wherein, A push rod (10) is slidably connected to one side wall of the upper cavity (8), one end of the push rod (10) is fixedly connected to the sleeve (24), and the other end of the push rod (10) is fixedly connected to the installation plate (11).

10. The heat energy recovery device for a pressure type spray drying tower according to claim 1, characterized in that, The bottom wall of the upper cavity (8) is inclined, and a water flow port is formed in one side wall of the upper cavity (8) close to the water storage cavity (5).

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