A hydrogen chloride self-pressurizing conveying and drying device

Abstract

The present invention relates to a self-pressurized hydrogen chloride conveying and drying device, belonging to the technical field of hydrogen chloride production. In the device, a pressure valve is arranged in the outlet pipe of the self-pressurized conveying tank, connected to a cooler, a device column with a strip cavity arranged in it is connected to the bottom of the self-pressurized conveying tank, a booster mechanism is arranged in the strip cavity, the outlet end of the cooler is connected to the exhaust pipe extending into the drying tank, a conveying pipe is arranged on the top of the drying tank, and a heat exchange mechanism and a glass wire mesh demister wall are arranged in it; the heat exchange mechanism is connected to the cylindrical shell outside the drying tank, a reciprocating mechanism connected to the driving mechanism is arranged in the device cavity of the machine body outside the drying tank, a piston connected to the reciprocating mechanism is arranged in the piston cavity of the machine body, the piston divides the piston cavity into the first and second cavities, and pump inlet and outlet mechanisms connected to the drying tank are arranged respectively; the reciprocating mechanism and the booster mechanism are connected by a transmission mechanism. The device has a reasonable structure, and the heat generated by the concentrated sulfuric acid absorbing water vapor can be used as a driving source to realize the self-pressurized conveying of hydrogen chloride gas, which is energy-saving and has a good drying effect.

Description

Technical Field

[0001] The invention relates to a hydrogen chloride self-pressurizing conveying and drying device, belonging to the technical field of hydrogen chloride production. Background Art

[0002] Hydrogen chloride is a corrosive, non-combustible gas that often exists in the air in the form of hydrochloric acid fumes. It is easily soluble in ethanol and ether, and can also be dissolved in a variety of other organic substances. It does not react with water but is easily soluble in water. At 25°C and 1 atmosphere, 1 volume of water can dissolve 503 volumes of hydrogen chloride gas. Hydrogen chloride gas that is easily soluble in water and chemically synthesized often contains more water vapor and needs to be dried.

[0003] In the prior art, multiple pumps are often required for transporting hydrogen chloride gas during the transportation and drying process, which results in high energy consumption. In addition, during the drying process, the concentration of concentrated sulfuric acid used decreases after absorbing a certain amount of water. Failure to replenish the concentrated sulfuric acid in time will affect the absorption effect. Summary of the invention

[0004] In order to overcome the defects of the prior art, the purpose of the present invention is to provide a self-pressurized hydrogen chloride transportation and drying device, which can use the heat generated by concentrated sulfuric acid absorbing water vapor as a driving source to achieve self-pressurized transportation of hydrogen chloride gas, which is more energy-saving and has a good drying effect.

[0005] In order to achieve the purpose of the present invention, the following technical solutions are provided.

[0006] A self-pressurized hydrogen chloride conveying and drying device comprises a self-pressurized conveying tank, a cooler, a drying tank, a device column, a pressurizing mechanism, an air outlet mechanism, a heat exchange mechanism, a glass wire mesh demister, a columnar shell, a driving mechanism, a machine body, a reciprocating mechanism, a piston, a pump-in mechanism, a pump-out mechanism and a transmission mechanism.

[0007] An air inlet pipe is provided on one side wall of the self-pressurized conveying tank, and an air outlet pipe is provided on the other side wall. A pressure valve is installed in the air outlet pipe, and the air outlet pipe is connected to the air inlet end of the cooler. A device column is fixedly connected to the outer side of the bottom of the self-pressurized conveying tank, and a strip cavity is provided in the device column. A pressurizing mechanism is provided in the strip cavity; the air outlet end of the cooler is connected to an exhaust pipe extending to the lower part of the drying tank, and an air outlet mechanism is provided on the exhaust pipe; in the drying tank, a heat exchange mechanism is provided on the lower inner wall, and a glass wire mesh demister is installed on the upper part; the conveying pipe extends from the inner side of the top of the drying tank to communicate with the outside of the drying tank. The drying tank is provided with a cylindrical shell and a body on the outside, and the cylindrical shell is fixedly connected to the body; the heat exchange mechanism in the drying tank is connected to the cylindrical shell, and the gas generated by heat exchange drives the driving mechanism of the cylindrical shell to move; one side of the internal cavity of the body is a device cavity, and the other side is a piston cavity. A reciprocating mechanism connected to the driving mechanism is provided in the device cavity, and a piston connected to the reciprocating mechanism is provided in the piston cavity. The piston divides the piston cavity into a first cavity and a second cavity. The first cavity is adjacent to the device cavity, and a pump-in mechanism is provided inside, which is connected to the middle of the drying tank. A pump-out mechanism is provided in the second cavity, which is connected to the bottom of the drying tank. Concentrated sulfuric acid is installed at the bottom of the drying tank. The driving mechanism and the reciprocating mechanism are connected, and the driving mechanism drives the reciprocating mechanism to move, and the reciprocating mechanism drives the piston to move; the reciprocating mechanism and the supercharging mechanism are connected through a transmission mechanism, and the reciprocating mechanism drives the transmission mechanism to move the supercharging mechanism.

[0008] The preferred boosting mechanism includes:

[0009] A reciprocating screw is rotatably connected in the strip cavity, and a screw sleeve matching it is sleeved on the reciprocating screw. The outer wall of the screw sleeve is slidably connected to the inner wall of the strip cavity; the upper end of the screw sleeve is fixedly connected to a push rod, and the upper end of the push rod extends into the self-pressurized conveying tank and is fixed with a piston plate, and the outer wall of the piston plate fits with the inner wall of the self-pressurized conveying tank.

[0010] The preferred air outlet mechanism includes:

[0011] An air outlet annular tube is fixed at the end of the exhaust pipe, and the air outlet annular tube is horizontally arranged and located on the inner side of the heat exchange mechanism. There are more than one air outlet annular tube, and each air outlet annular tube has more than one air outlet hole at the bottom; more preferably, each air outlet annular tube has a plurality of air outlet holes at equal intervals in the circumferential direction at the bottom.

[0012] The preferred heat exchange mechanism includes:

[0013] The serpentine heat exchange tube is fixed on the inner wall of the drying tank, and the side wall of the drying tank is provided with a water inlet pipe connected to one end of the serpentine heat exchange tube and a steam pipe connected to the other end of the serpentine heat exchange tube.

[0014] The preferred driving mechanism includes:

[0015] The top of the rotating rod extends into the cylindrical shell, and the lower part of the rotating rod penetrates the body and extends from the bottom of the body, and the rotating rod is rotatably connected to the cylindrical shell; more than two fan blades are installed on the outer wall of the rotating rod extending into the inner part of the cylindrical shell, and the inner wall of the cylindrical shell is provided with a circular tube connected to the outlet end of the heat exchange mechanism, and the circular tube is arranged on the outside of the fan blade, and a number of air outlet heads are evenly spaced on the inner wall of the circular tube, and all the air outlet heads are inclined in the same direction toward the fan blades, and the outer wall of the cylindrical shell is provided with an air outlet.

[0016] The preferred reciprocating mechanism comprises:

[0017] A cam is fixed on the part of the rotating rod extending into the body, a sliding rod is provided between the device cavity and the piston cavity, one end of the sliding rod is against the outer wall of the cam through a roller, and a limiting plate is fixed thereon, a spring is sleeved on the sliding rod between the limiting plate and the inner wall of the device cavity, and the other end of the sliding rod extends into the piston cavity and is fixedly connected to the piston.

[0018] The preferred pumping mechanism comprises:

[0019] The liquid inlet pipe and the liquid outlet pipe are connected to the first cavity, and the inner wall of the drying tank is fixed with a liquid outlet annular pipe connected to the liquid outlet pipe, and the inner wall of the liquid outlet annular pipe is provided with more than one liquid outlet hole; more preferably, the inner wall of the liquid outlet annular pipe is provided with a plurality of liquid outlet holes at equal intervals in the circumferential direction.

[0020] Preferred pumping mechanisms include:

[0021] A liquid suction pipe and a liquid discharge pipe are communicated with the second cavity, and one end of the liquid suction pipe is communicated with the bottom of the drying tank.

[0022] One-way valves are installed in the liquid inlet pipe, liquid outlet pipe, liquid discharge pipe and liquid suction pipe.

[0023] The preferred transmission mechanism includes:

[0024] A first belt pulley is arranged at the bottom of the rotating rod, a rotating shaft penetrating the device column is fixed at the bottom of the booster mechanism, a second belt pulley is fixed on the outer wall of the rotating shaft, and a belt is sleeved between the first belt pulley and the second belt pulley.

[0025] The working mode of the hydrogen chloride self-pressurizing conveying and drying device of the present invention is as follows:

[0026] The hydrogen chloride gas enters the self-pressurized conveying tank through the air inlet pipe, the pressure valve of the air outlet pipe is opened under pressure, and the hydrogen chloride enters the cooler through the air outlet pipe for cooling, the temperature drops to below 15°C, and then enters the concentrated sulfuric acid at the bottom of the drying tank through the air outlet mechanism connected to the exhaust pipe. The concentrated sulfuric acid can effectively absorb the water vapor in the hydrogen chloride gas, and the glass wire mesh demister in the drying tank can eliminate the generated acid mist, and finally discharge it through the conveying pipe; the concentrated sulfuric acid releases a large amount of heat during the water absorption process, and the water is passed into the heat exchange mechanism in the drying tank. The water is vaporized after being heated, and the water vapor enters the cylindrical shell to drive the driving mechanism to move, thereby driving the reciprocating mechanism, the piston and the transmission mechanism to move, thereby driving the boosting mechanism to move, which can further increase the initial pressure of the hydrogen chloride gas, thereby ensuring the normal subsequent transportation, and more energy-saving; the piston moves left and right in the piston cavity, absorbs concentrated sulfuric acid from the outside into the first cavity through the pumping mechanism, and then passes into the drying tank. The diluted concentrated sulfuric acid at the bottom of the drying tank is sucked into the second cavity through the pumping mechanism, and finally discharged, thereby ensuring the concentration of the concentrated sulfuric acid and obtaining the best drying effect.

[0027] Beneficial Effects

[0028] 1. The present invention provides a hydrogen chloride self-pressurizing conveying and drying device. The device can realize the automatic addition of concentrated sulfuric acid and the automatic discharge of concentrated sulfuric acid diluted at the bottom by arranging a reciprocating mechanism, a pumping mechanism and a pumping mechanism, thereby ensuring the concentration of concentrated sulfuric acid, and hydrogen chloride gas evenly enters the concentrated sulfuric acid, and the drying effect is good.

[0029] 2. The present invention provides a self-pressurized hydrogen chloride conveying and drying device. The device is equipped with a heat exchange mechanism, a driving mechanism, a transmission mechanism and a pressurizing mechanism, which can use the heat generated by concentrated sulfuric acid absorbing water to continuously heat the water in the serpentine heat exchange tube to vaporize it. The vaporized water is used as a driving source to realize the upward movement of the piston plate, thereby increasing the pressure of the hydrogen chloride gas in the self-pressurized conveying tank, realizing a continuous discharge and conveying process, and being more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic cross-sectional structure diagram of the hydrogen chloride self-pressurizing conveying and drying device described in the embodiment.

[0031] Figure 2 It is a front view of the hydrogen chloride self-pressurizing conveying and drying device described in the embodiment.

[0032] Figure 3 It is a top view of the gas outlet mechanism of the hydrogen chloride self-pressurized conveying and drying device described in the embodiment.

[0033] Figure 4 It is a top view of the driving mechanism of the hydrogen chloride self-pressurizing conveying and drying device described in the embodiment.

[0034] Figure 5 It is an enlarged schematic diagram of the structure at position A of the hydrogen chloride self-pressurized conveying and drying device described in the embodiment.

[0035] In the figure: 1-self-pressure conveying tank, 2-inlet pipe, 3-retaining rod, 4-piston plate, 5-cylindrical shell, 6-rotating rod, 7-fan blade, 8-air outlet, 9-reciprocating screw, 10-machine body, 11-device chamber, 12-steam pipe, 13-liquid suction pipe, 14-exhaust pipe, 15-pressure valve, 16-air outlet pipe, 17-cooler, 18-conveying pipe, 19-glass wire mesh demister, 20-liquid outlet annular pipe, 21-drying tank, 22-water inlet pipe, 23-serpentine heat exchange pipe, 24-liquid outlet pipe, 25-piston, 26-second cavity, 27-liquid discharge pipe, 28-first cavity, 29-liquid inlet pipe, 30-first pulley, 31-belt, 32-second pulley, 33—device column, 34—screw sleeve, 35—strip cavity, 36—air outlet annular tube, 37—air outlet hole, 38—round tube, 39—sliding rod, 40—spring, 41—limiting plate, 42—cam DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Example 1

[0040] A hydrogen chloride self-pressurizing conveying and drying device, such as Figures 1 to 5 As shown, the device includes a self-pressurized conveying tank 1, a graphite cooler 17, a drying tank 21, a device column 33, a pressurizing mechanism, an air outlet mechanism, a heat exchange mechanism, a glass wire mesh demister 19, a cylindrical shell 5, a driving mechanism, a body 10, a reciprocating mechanism, a piston 25, a pump-in mechanism, a pump-out mechanism and a transmission mechanism.

[0041] An air inlet pipe 2 is provided on one side wall of the self-pressurized conveying tank 1, and an air outlet pipe 16 is provided on the other side wall. A pressure valve 15 is installed in the air outlet pipe 16. The air outlet pipe 16 is connected to the air inlet end of a graphite cooler 17. A device column 33 is fixedly connected to the outer side of the bottom of the self-pressurized conveying tank 1. A strip cavity 35 is provided in the device column 33, and a pressurizing mechanism is provided in the strip cavity 35.

[0042] The pressurizing mechanism includes: a reciprocating screw 9 rotatably connected in the strip cavity 35, a screw sleeve 34 matching with the reciprocating screw 9 is sleeved on the reciprocating screw 9, and the outer wall of the screw sleeve 34 is slidably connected to the inner wall of the strip cavity 35; the upper end of the screw sleeve 34 is fixedly connected to a push rod 3, the upper end of the push rod 3 extends into the self-pressurized conveying tank 1 and is fixed with a piston plate 4, and the outer wall of the piston plate 4 is in contact with the inner wall of the self-pressurized conveying tank 1. The reciprocating screw 9 rotates to drive the screw sleeve 34 to move up and down. In the process of the screw sleeve 34 driving the piston plate 4 to move up through the push rod 3, the initial pressure of the hydrogen chloride gas can be further increased, thereby ensuring the normal subsequent conveying and being more energy-efficient.

[0043] The gas outlet end of the graphite cooler 17 is connected to the exhaust pipe 14 extending to the lower part of the drying tank 21, and the exhaust pipe 14 is provided with a gas outlet mechanism.

[0044] The gas outlet mechanism includes: a gas outlet annular tube 36 fixed at the end of the exhaust pipe 14, the gas outlet annular tube 36 is horizontally arranged, located inside the heat exchange mechanism, and there are more than one gas outlet annular tube 36, and 20 gas outlet holes 37 are evenly spaced at the bottom of each gas outlet annular tube 36. The hydrogen chloride gas cooled in the graphite cooler 17 enters the gas outlet annular tube 36 through the exhaust pipe 14, and finally enters the concentrated sulfuric acid at the bottom of the drying tank 21 through the gas outlet holes 37, so that the gas intake is more uniform.

[0045] Inside the drying tank 21, a heat exchange mechanism is provided on the lower inner wall, and a glass wire mesh demister 19 is installed on the upper part; a delivery pipe 18 extends from the inner side of the top of the drying tank 21 to communicate with the drying tank 21 and the outside.

[0046] The heat exchange mechanism includes: a serpentine heat exchange tube 23 fixed on the inner wall of the drying tank 21, and a water inlet pipe 22 connected to one end of the serpentine heat exchange tube 23 and a steam pipe 12 connected to the other end of the serpentine heat exchange tube 23 are provided on the side wall of the drying tank 21.

[0047] A cylindrical shell 5 and a machine body 10 are disposed outside the drying tank 21 . The cylindrical shell 5 is fixedly connected to the machine body 10 . The heat exchange mechanism in the drying tank 21 is communicated with the cylindrical shell 5 .

[0048] The driving mechanism includes: a rotating rod 6 with a top extending into the cylindrical shell 5, a lower part of the rotating rod 6 penetrating the body 10 and extending from the bottom of the body 10, and the rotating rod 6 is rotatably connected to the cylindrical shell 5; 6 blades 7 are installed on the outer wall of the rotating rod 6 extending into the cylindrical shell 5, and a circular tube 38 connected to the outlet end of the steam pipe 12 in the heat exchange mechanism is provided on the inner wall of the cylindrical shell 5, and the circular tube 38 is arranged on the outer side of the blade 7, and 20 gas outlets are arranged on the inner wall of the circular tube 38 at equal intervals, and all the gas outlets are inclined in the same direction toward the blade 7, and the outer wall of the cylindrical shell 5 is provided with a gas outlet 8. Water is continuously input into the serpentine heat exchange tube 23 through the water inlet pipe 22, and the serpentine heat exchange tube 23 can heat the water to vaporization, and the vaporized water enters the circular tube 38 through the steam pipe 12, and is finally discharged through the gas outlet, and the discharged gas forms an annular airflow, which drives the blade 7 to rotate, thereby driving the rotating rod 6 to rotate.

[0049] One side of the internal cavity of the machine body 10 is a device cavity 11 , and the other side is a piston cavity. A reciprocating mechanism connected to a driving mechanism is disposed in the device cavity 11 .

[0050] The reciprocating mechanism includes: a cam 42 is fixed to the part of the rotating rod 6 extending into the body 10, a sliding rod 39 is provided between the device chamber 11 and the piston chamber, one end of the sliding rod 39 abuts against the outer wall of the cam 42 through a roller, and a limit plate 41 is fixed, a spring 40 is sleeved on the sliding rod 39 between the limit plate 41 and the inner wall of the device chamber 11, and the other end of the sliding rod 39 extends into the piston chamber and is fixedly connected to the piston 25. The rotating rod 6 drives the cam 42 to rotate at the same time, and because the sliding rod 39 makes the roller always abut against the outer wall of the cam 42 through the spring 40, the sliding rod 39 reciprocates left and right as the cam 42 rotates.

[0051] A piston 25 connected to a reciprocating mechanism is provided in the piston cavity. The piston 25 divides the piston cavity into a first cavity 28 and a second cavity 26. The first cavity 28 is adjacent to the device cavity 11 and has a pumping mechanism inside, which is connected to the middle of the drying tank 21.

[0052] The pumping mechanism includes: a liquid inlet pipe 29 and a liquid outlet pipe 24 connected to the first cavity 28. The inner wall of the drying tank 21 is fixed with a liquid outlet annular pipe 20 connected to the liquid outlet pipe 24. The inner wall of the liquid outlet annular pipe 20 is provided with 15 liquid outlet holes at equal intervals in the circumferential direction.

[0053] A pumping mechanism is provided in the second cavity 26 and is communicated with the bottom of the drying tank 21 , and concentrated sulfuric acid is filled in the bottom of the drying tank 21 .

[0054] The pumping mechanism includes: a liquid suction pipe 13 and a liquid discharge pipe 27 communicated with the second cavity 26 , and one end of the liquid suction pipe 13 is communicated with the bottom of the drying tank 21 .

[0055] One-way valves are installed in the liquid inlet pipe 29 , the liquid outlet pipe 24 , the liquid discharge pipe 27 and the liquid suction pipe 13 .

[0056] When the piston 25 moves to the left, the concentrated sulfuric acid in the first cavity 28 enters the liquid outlet annular pipe 20 through the liquid outlet pipe 24, and is finally discharged into the drying tank 21 through the liquid outlet hole. At the same time, the diluted concentrated sulfuric acid at the bottom of the drying tank 21 is sucked into the second cavity 26 through the suction pipe 13, and is finally discharged through the drain pipe 27, thereby ensuring the concentration of the concentrated sulfuric acid.

[0057] The reciprocating mechanism and the boosting mechanism are connected via a transmission mechanism, and the reciprocating mechanism drives the transmission mechanism to move the boosting mechanism.

[0058] The transmission mechanism includes: a first pulley 30 is provided at the bottom of the rotating rod 6, a rotating shaft penetrating the device column 33 is fixed to the bottom of the reciprocating screw 9 in the booster mechanism, a second pulley 32 is fixed to the outer wall of the rotating shaft, and a belt 31 is sleeved between the first pulley 30 and the second pulley 32.

[0059] The working mode of the hydrogen chloride self-pressurizing conveying and drying device described in this embodiment is as follows:

[0060] The hydrogen chloride gas enters the self-pressurized conveying tank 1 through the air inlet pipe 2, and the pressure valve 15 of the air outlet pipe 16 opens when the pressure reaches 0.8 kPa. The hydrogen chloride enters the graphite cooler 17 through the air outlet pipe 16 for cooling, and the temperature drops to below 15°C, and then enters the air outlet annular pipe 36 through the exhaust pipe 14, and finally enters the concentrated sulfuric acid at the bottom of the drying tank 21 through the air outlet hole 37. The concentrated sulfuric acid can effectively absorb the water vapor in the hydrogen chloride gas, and the glass wire mesh demister 19 in the drying tank 21 can eliminate the generated acid mist, and finally discharge it through the conveying pipe 18; the concentrated sulfuric acid releases a large amount of heat during the water absorption process, and the water is continuously input into the serpentine heat exchange tube 23 through the water inlet pipe 22. The serpentine heat exchange tube 23 can heat the water to vaporization, and the vaporized water enters the circular tube 38 through the steam pipe 12, and is finally discharged through the air outlet head. The discharged gas forms an annular airflow, which drives the fan blade 7 to rotate.

[0061] Thereby, the rotating rod 6 is driven to rotate, and finally the cylindrical shell 5 is discharged through the gas outlet 8. The rotating rod 6 drives the first pulley 30 to rotate, and the first pulley 30 drives the second pulley 32 to rotate through the belt 31. The second pulley 32 drives the reciprocating screw 9 to rotate through the rotating shaft, thereby driving the screw sleeve 34 to move up and down. In the process of the screw sleeve 34 driving the piston plate 4 to move upward through the push rod 3, the initial pressure of the hydrogen chloride gas can be further increased, thereby ensuring the normal subsequent transportation and being more energy-efficient.

[0062] The rotating rod 6 drives the cam 42 to rotate at the same time. Since the sliding rod 39 makes the roller always abut against the outer wall of the cam 42 through the spring 40, the sliding rod 39 moves back and forth left and right as the cam 42 rotates, driving the piston 25 to move left and right in the piston cavity. During the rightward movement of the piston 25, concentrated sulfuric acid is absorbed from the outside into the first cavity 28 through the liquid inlet pipe 29. When the piston 25 moves to the left, the concentrated sulfuric acid in the first cavity 28 enters the liquid outlet annular pipe 20 through the liquid outlet pipe 24, and is finally discharged into the drying tank 21 through the liquid outlet hole. At the same time, the concentrated sulfuric acid diluted at the bottom of the drying tank 21 is sucked into the second cavity 26 through the liquid suction pipe 13, and is finally discharged through the liquid discharge pipe 27, thereby ensuring the concentration of the concentrated sulfuric acid and obtaining the best drying effect.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydrogen chloride self-pressurizing conveying and drying device, characterized in that: The device comprises a self-pressurized conveying tank (1), a cooler (17), a drying tank (21), a device column (33), a pressurizing mechanism, an air outlet mechanism, a heat exchange mechanism, a glass wire mesh demister (19), a cylindrical shell (5), a driving mechanism, a machine body (10), a reciprocating mechanism, a piston (25), a pump-in mechanism, a pump-out mechanism and a transmission mechanism; An air inlet pipe (2) is provided on one side wall of the self-pressurized conveying tank (1), and an air outlet pipe (16) is provided on the other side wall. A pressure valve (15) is installed in the air outlet pipe (16). The air outlet pipe (16) is connected to the air inlet end of the cooler (17). A device column (33) is fixedly connected to the outside of the bottom of the self-pressurized conveying tank (1). A strip-shaped cavity (35) is provided in the device column (33). A pressurizing mechanism is provided in the strip-shaped cavity (35). The air outlet end of the cooler (17) is connected to an exhaust pipe (14) extending to the lower part of the drying tank (21). The exhaust pipe (14) is provided with an air outlet mechanism. A heat exchange mechanism is provided on the lower inner wall of the drying tank (21), and a glass wire mesh demister (19) is installed on the upper part. The conveying pipe (18) extends from the inner side of the top of the drying tank (21) to the drying tank (21) and communicates with the outside. A cylindrical shell (5) and a machine body (10) are provided outside the drying tank (21), and the cylindrical shell (5) is fixedly connected to the machine body (10); a heat exchange mechanism in the drying tank (21) is connected to the cylindrical shell (5), and the gas generated by heat exchange drives the drive mechanism of the cylindrical shell (5) to move; one side of the internal cavity of the machine body (10) is a device cavity (11), and the other side is a piston cavity; a reciprocating mechanism connected to the drive mechanism is provided in the device cavity (11), and a piston (25) connected to the reciprocating mechanism is provided in the piston cavity; the piston (25) divides the piston cavity into a first cavity (28) and a second cavity (26); the first cavity (28) is adjacent to the device cavity (11), and a pump-in mechanism is provided inside the first cavity (28) and is connected to the middle of the drying tank (21); a pump-out mechanism is provided in the second cavity (26) and is connected to the bottom of the drying tank (21); and concentrated sulfuric acid is provided at the bottom of the drying tank (21); The driving mechanism and the reciprocating mechanism are connected, the driving mechanism drives the reciprocating mechanism to move, and the reciprocating mechanism drives the piston to move; the reciprocating mechanism and the boosting mechanism are connected through the transmission mechanism, and the reciprocating mechanism drives the transmission mechanism to move the boosting mechanism; The boost mechanism comprises: a reciprocating screw (9) rotatably connected in the strip-shaped cavity (35); a screw sleeve (34) matching with the reciprocating screw (9) is sleeved on the reciprocating screw (9); the outer wall of the screw sleeve (34) is slidably connected to the inner wall of the strip-shaped cavity (35); the upper end of the screw sleeve (34) is fixedly connected to a push rod (3); the upper end of the push rod (3) extends into the self-pressurizing conveying tank (1) and is fixed with a piston plate (4); the outer wall of the piston plate (4) is in contact with the inner wall of the self-pressurizing conveying tank (1); The air outlet mechanism comprises: an air outlet annular tube (36) fixed at the end of the exhaust pipe (14); the air outlet annular tube (36) is horizontally arranged and located inside the heat exchange mechanism; there are more than one air outlet annular tube (36); and each air outlet annular tube (36) is provided with more than one air outlet hole (37) at the bottom.

2. A hydrogen chloride self-pressurizing conveying and drying device according to claim 1, characterized in that: The heat exchange mechanism comprises: a serpentine heat exchange tube (23) fixed on the inner wall of a drying tank (21); a water inlet pipe (22) connected to one end of the serpentine heat exchange tube (23) and a steam pipe (12) connected to the other end of the serpentine heat exchange tube (23) are arranged on the side wall of the drying tank (21).

3. A hydrogen chloride self-pressurizing conveying and drying device according to claim 1, characterized in that: The driving mechanism comprises: a rotating rod (6) whose top extends into a cylindrical shell (5); the lower part of the rotating rod (6) penetrates through a machine body (10) and extends from the bottom of the machine body (10); the rotating rod (6) is rotatably connected to the cylindrical shell (5); two or more fan blades (7) are mounted on the outer wall of the rotating rod (6) extending into the inner part of the cylindrical shell (5); a circular tube (38) connected to the outlet end of the heat exchange mechanism is provided on the inner wall of the cylindrical shell (5); the circular tube (38) is arranged on the outer side of the fan blade (7); a plurality of air outlet heads are provided on the inner wall of the circular tube (38); all the air outlet heads are arranged to be inclined in the same direction toward the fan blade (7); and an air outlet (8) is provided on the outer wall of the cylindrical shell (5).

4. A hydrogen chloride self-pressurizing conveying and drying device according to claim 1, characterized in that: The reciprocating mechanism comprises: a rotating rod (6) extending into a part of a machine body (10) and being fixed with a cam (42); a sliding rod (39) penetrating between a device cavity (11) and a piston cavity; one end of the sliding rod (39) abutting against an outer wall of the cam (42) through a roller and being fixed with a limiting plate (41); a spring (40) being sleeved on the sliding rod (39) between the limiting plate (41) and an inner wall of the device cavity (11); and the other end of the sliding rod (39) extending into the piston cavity and being fixedly connected with a piston (25).

5. The hydrogen chloride self-pressurizing conveying and drying device according to claim 1, characterized in that: The pumping mechanism comprises: a liquid inlet pipe (29) and a liquid outlet pipe (24) connected to the first cavity (28); a liquid outlet annular pipe (20) connected to the liquid outlet pipe (24) is fixed to the inner wall of the drying tank (21); and the inner wall of the liquid outlet annular pipe (20) is provided with one or more liquid outlet holes; The pumping mechanism comprises: a liquid suction pipe (13) and a liquid discharge pipe (27) which are connected to the second cavity (26); one end of the liquid suction pipe (13) is connected to the bottom of the drying tank (21); One-way valves are installed in the liquid inlet pipe (29), the liquid outlet pipe (24), the liquid discharge pipe (27) and the liquid suction pipe (13).

6. A hydrogen chloride self-pressurizing conveying and drying device according to claim 1, characterized in that: The transmission mechanism comprises: a first pulley (30) is arranged at the bottom of a rotating rod (6); a rotating shaft penetrating a device column (33) is fixed at the bottom of a booster mechanism; a second pulley (32) is fixed on the outer wall of the rotating shaft; and a belt (31) is sleeved between the first pulley (30) and the second pulley (32).

7. The hydrogen chloride self-pressurizing conveying and drying device according to claim 1, characterized in that: The bottom of each annular air outlet pipe (36) is provided with a plurality of air outlet holes (37) at equal intervals in the circumferential direction.

8. The hydrogen chloride self-pressurizing conveying and drying device according to claim 3, characterized in that: The inner wall of the circular tube (38) is provided with a plurality of gas outlets at equal intervals.

9. The hydrogen chloride self-pressurizing conveying and drying device according to claim 5, characterized in that: The inner wall of the liquid outlet annular pipe (20) is provided with a plurality of liquid outlet holes at equal intervals in the circumferential direction.

Images