Cooling pusher for potassium sulfate conveying

Abstract

A cooling pusher for conveying potassium sulfate relates to the technical field of cooling pushers and comprises a supporting base, a shell is fixedly arranged at the top of the supporting base, end covers are detachably arranged at the two ends of the shell, a water cooling jacket is fixedly arranged on the outer wall of the shell, a hollow shaft is rotatably arranged in the shell, and spiral blades are fixedly arranged on the outer wall of the hollow shaft. A plurality of fixedly-arranged material collecting boxes are arranged on the outer wall of the hollow shaft in the axial direction, the tops of the material collecting boxes are open and make friction contact with the inner wall of the shell, spiral plates making friction contact with the inner wall of the shell and rotating in the same direction as the spiral blades are fixedly arranged at the ends of the material collecting boxes, and material passing grooves communicating with inner cavities of the material collecting boxes are formed in the tops of the spiral plates; and a push plate is slidably arranged in the material collecting box. The problems that an existing cooling pusher needs a long pushing distance to cool potassium sulfate particles, so that the cooling period is long, and the equipment installation space limitation is large are solved; the potassium sulfate particles are poor in cooling effect due to poor contact uniformity between the potassium sulfate particles and the shell.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling pushers, and specifically to a cooling pusher for potassium sulfate transportation. Background Art

[0002] In the production process of potassium sulfate particles, the cooling pusher is a key post-treatment device, mainly used for cooling and transporting the materials after high-temperature granulation. The cooling pusher slowly pushes the high-temperature potassium sulfate particles (usually 80 - 120 °C) to the discharge end by means of screw propulsion, and at the same time uses a water-cooled jacket for heat exchange to reduce the particle temperature to 30 - 50 °C, ensuring its physical stability and avoiding caking.

[0003] During the use of the existing cooling pusher, deficiencies have gradually emerged, mainly manifested in the following aspects: First, the pushing distance required for cooling potassium sulfate particles is long, resulting in a long cooling cycle and large limitations in the installation space of the equipment. Specifically, a water-cooled jacket structure is installed on the outer wall of the pusher housing. During the process of the screw blade pushing the potassium sulfate particles in the housing, the potassium sulfate particles come into contact with the housing for cooling. Since the material filling rate during the operation of the screw blade is only 30% - 50%, the actual contact area between the potassium sulfate particles and the inner wall of the housing is limited, and the effective heat exchange efficiency is low. To meet the cooling requirements, it is necessary to significantly extend the pushing distance of the potassium sulfate material, which not only significantly increases the cooling cycle and affects the production efficiency, but also increases the limitations of the installation space due to the increase in the equipment length, affecting the on-site layout.

[0004] Second, the contact uniformity between the potassium sulfate particles and the housing is poor, resulting in poor cooling effect of the potassium sulfate particles. Specifically, during the process of the screw blade pushing the potassium sulfate particles to move, the material is in a stable and continuous pushing state in the housing, and the relative movement between the particles is small. Therefore, the contact between the potassium sulfate particles and the inner wall of the housing is uneven, and it is difficult to achieve rapid and uniform cooling of the potassium sulfate particles, resulting in poor cooling effect of the potassium sulfate particles.

[0005] In summary, it is obvious that the prior art has inconveniences and defects in actual use, so it is necessary to make improvements. Summary of the Invention

[0006] Aiming at the defects in the prior art, the technical problem to be solved by the present invention is to provide a cooling pusher for potassium sulfate transportation, which can increase the contact area between the potassium sulfate particles and the inner wall of the housing. Under the same pushing distance, the effective heat exchange efficiency is greatly improved. Thanks to this improvement, the pushing distance required for the equipment to cool the potassium sulfate particles is greatly shortened, not only effectively reducing the cooling cycle, but also reducing the equipment's requirement for installation space; During the process of pushing potassium sulfate particles, the device can turn the potassium sulfate particles, improving the contact condition between the potassium sulfate particles and the inner wall of the shell, enabling the material to continuously alternate contact with the cooling surface, and achieving a faster and more uniform cooling effect on the potassium sulfate particles.

[0007] To solve the above problems, the present invention provides the following technical solutions: A cooling pusher for potassium sulfate transportation, comprising a support base, a shell fixedly arranged on the top of the support base, end covers detachably arranged at both ends of the shell, a water-cooled jacket fixedly arranged on the outer wall of the shell, a hollow shaft rotatably arranged inside the shell, a spiral blade fixedly arranged on the outer wall of the hollow shaft, a plurality of fixedly arranged aggregate boxes axially arranged on the outer wall of the hollow shaft, the top of the aggregate box being open and in frictional contact with the inner wall of the shell, a spiral plate fixedly arranged at the end of the aggregate box and in frictional contact with the inner wall of the shell and having the same helix direction as the spiral blade, a material passing groove communicating with the inner cavity of the aggregate box arranged at the top of the spiral plate, a push plate slidably arranged inside the aggregate box, a fixed pipe fixedly arranged inside the hollow shaft, one end of the fixed pipe passing through the end cover and the water-cooled jacket and being connected to an external air source, a gas distribution box fixedly arranged at the end of the aggregate box and intermittently communicating with the fixed pipe, a plurality of communicating spray pipes fixedly arranged on the top of the gas distribution box, one end of the spray pipe passing through the upper end of the aggregate box and extending to the inside, the spiral plate being fixedly connected to the hollow shaft through a connecting plate, and a material deflecting plate fixedly arranged at the end of the connecting plate.

[0008] As an optimized solution, a plurality of penetrating support cylinders are fixedly arranged at the bottom of the aggregate box, a sliding rod is arranged inside the support cylinder, the top end of the sliding rod passes upward through the support cylinder and is fixedly connected to the push plate, the sliding rod is slidably connected to the support cylinder, a plurality of cams are fixedly arranged on the outer wall of the fixed pipe, and the bottom end of the sliding rod is in frictional contact with the outer wall of the cam.

[0009] As an optimized solution, a stop plate is fixedly arranged on the outer wall of the sliding rod, and a compression spring is sleeved on the outer wall of the sliding rod, and the two ends of the compression spring are respectively abutted against the support cylinder and the stop plate.

[0010] As an optimized solution, a plurality of rotatably arranged rotating sleeves are sleeved on the outer wall of the fixed pipe, a plurality of sealing rings in frictional contact with the outer wall of the fixed pipe are embedded on the inner wall of the rotating sleeve, an arc-shaped ventilation groove is arranged through the outer wall of the fixed pipe at the position inside the sealing ring, a ventilation pipe is fixedly arranged on the outer wall of the rotating sleeve, one end of the ventilation pipe passes through the rotating sleeve and the sealing ring and is in frictional contact with the outer wall of the fixed pipe, and the other end of the ventilation pipe passes through the hollow shaft and is connected to the gas distribution box.

[0011] As an optimized solution, a plurality of fixing plates are fixedly arranged on the outer wall of the rotating sleeve, and the fixing plates are detachably connected to the hollow shaft.

[0012] As an optimized solution, a one-way valve is provided on the vent pipe.

[0013] As an optimized solution, one end of the hollow shaft is rotatably connected to one of the end caps, the other end of the hollow shaft penetrates through the other end cap and is rotatably connected thereto, a driving motor is fixedly provided on the top of the support base, sprockets are fixedly provided on the output end of the driving motor and the outer wall of the hollow shaft, and the two sprockets are connected by a chain.

[0014] As an optimized solution, a fixing frame is fixedly provided on the top of the support base, one end of the fixed pipe is sealed and extends outside the hollow shaft and is fixedly connected to the fixing frame, and the fixed pipe is fixedly connected to one of the end caps.

[0015] As an optimized solution, the water-cooled jacket is fixedly connected to the support base through a plurality of support frames.

[0016] As an optimized solution, a feed pipe and a discharge pipe which are communicated are respectively fixedly provided on the upper outer wall and the lower outer wall of the housing, and a water outlet pipe and a water inlet pipe which are communicated are respectively fixedly provided on the upper outer wall and the lower outer wall of the water-cooled jacket.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The driving motor drives the hollow shaft and the spiral blade to rotate. The spiral blade pushes the potassium sulfate particles in the shell. The cooling water in the water-cooled jacket exchanges heat with the shell. The pushed potassium sulfate particles contact the inner wall of the shell for cooling. When the hollow shaft rotates, it drives the aggregate box and the spiral plate to rotate. During the process that the bottom end of the sliding rod contacts the return stroke area and the base circle area of the cam successively, the spiral plate continuously inserts into the materials in the shell, and the materials enter the material passing groove of the spiral plate. When the aggregate box is lower than the height of the materials inside the shell, the materials in the material passing groove enter the aggregate box. When the aggregate box rotates to the lowest position, the filling of the aggregate box is completed (during this process, the rotating sleeve rotates synchronously with the hollow shaft, but the air vent pipe orifice is not connected to the arc-shaped air vent groove). Then the hollow shaft continues to rotate. During the process that the bottom end of the sliding rod contacts the push stroke area of the cam, the air vent pipe orifice overlaps with the arc-shaped air vent groove. The pressurized gas in the fixed pipe enters the air distribution box through the air vent pipe and is ejected from the jet pipe. The materials in the aggregate box are blown by the pressurized gas into the spiral plate and move along the spiral plate. During the movement of the materials in the spiral plate, they contact the upper inner wall of the shell for cooling. At the same time, the sliding rod drives the push plate to slide outwards under the push of the push stroke area of the cam, and then pushes the materials in the aggregate box outwards, so as to facilitate the blowing of the materials in the aggregate box. The materials blown out from the spiral plate re-enter the inside of the shell. When the sliding rod passes through the return stroke area of the cam, the push plate slides inwards and resets. This device can increase the contact area between the potassium sulfate particles and the inner wall of the shell. Under the same pushing distance, the effective heat exchange efficiency is greatly improved. Thanks to this improvement, the pushing distance required for the device to cool the potassium sulfate particles is greatly shortened, which not only effectively reduces the cooling cycle, but also reduces the requirement of the device for the installation space. 2. When the pressurized gas provided by the external gas source passes through the fixed pipe, since part of the fixed pipe is in the water-cooled jacket, the pressurized gas is cooled when passing through this part of the area. Using low-temperature gas to blow the materials further speeds up the cooling rate of the potassium sulfate particles. 3. When the hollow shaft rotates, it drives the material deflecting plate to rotate. The material deflecting plate turns the materials in the shell. This device can turn the potassium sulfate particles during the process of pushing the potassium sulfate particles, improves the contact condition between the potassium sulfate particles and the inner wall of the shell, enables the materials to continuously alternate contact with the cooling surface, and realizes a faster and more uniform cooling effect on the potassium sulfate particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0019] Figure 1 is the structural schematic diagram of the present invention; Figure 2 Schematic diagram of the internal structure of the housing of the present invention; Figure 3 Schematic diagram of the structure of the aggregate box and the spiral plate of the present invention; Figure 4 Schematic diagram of the structure of the material distributing plate of the present invention; Figure 5 Schematic diagram of the internal structure of the hollow shaft of the present invention; Figure 6 Schematic diagram of the structure of the driving mode of the push plate of the present invention; Figure 7 Sectional view of the support cylinder of the present invention; Figure 8 Schematic diagram of the internal structure of the rotating sleeve of the present invention; Figure 9 Schematic diagram of the structure of the fixed pipe of the present invention; Figure 10 Schematic diagram of the driving mode of the hollow shaft of the present invention.

[0020] In the figure: 1 - support base; 2 - end cover; 3 - housing; 4 - feed pipe; 5 - water outlet pipe; 6 - water cooling jacket; 7 - discharge pipe; 8 - water inlet pipe; 9 - spiral blade; 10 - fixed pipe; 11 - hollow shaft; 12 - material passing groove; 13 - spiral plate; 14 - aggregate box; 15 - push plate; 16 - air injection pipe; 17 - connecting plate; 18 - material distributing plate; 19 - air distribution box; 20 - stop plate; 21 - compression spring; 22 - sliding rod; 23 - one-way valve; 24 - support cylinder; 25 - ventilation pipe; 26 - fixing plate; 27 - cam; 28 - arc ventilation groove; 29 - rotating sleeve; 30 - sealing ring; 31 - fixing frame; 32 - chain; 33 - sprocket; 34 - support frame; 35 - driving motor. Detailed implementation manners

[0021] The embodiments of the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0022] As Figures 1 to 10As shown in the figure, a cooling pusher for potassium sulfate transportation includes a support base 1. A housing 3 is fixedly provided at the top of the support base 1. End caps 2 are detachably provided at both ends of the housing 3. A water-cooled jacket 6 is fixedly provided on the outer wall of the housing 3. A hollow shaft 11 is rotatably provided inside the housing 3. A spiral blade 9 is fixedly provided on the outer wall of the hollow shaft 11. A number of fixedly arranged aggregate boxes 14 are axially provided on the outer wall of the hollow shaft 11. The top of the aggregate box 14 is open and in frictional contact with the inner wall of the housing 3. A spiral plate 13 which is in frictional contact with the inner wall of the housing 3 and has the same spiral direction as the spiral blade 9 is fixedly provided at the end of the aggregate box 14. A material passing groove 12 communicating with the inner cavity of the aggregate box 14 is provided at the top of the spiral plate 13. A push plate 15 is slidably provided inside the aggregate box 14. A fixed pipe 10 is fixedly provided inside the hollow shaft 11. One end of the fixed pipe 10 penetrates through the end cap 2 and the water-cooled jacket 6 and is connected to an external air source. A gas distribution box 19 which is intermittently communicated with the fixed pipe 10 is fixedly provided at the end of the aggregate box 14. A number of communicating jet pipes 16 are fixedly provided at the top of the gas distribution box 19. One end of the jet pipe 16 penetrates through the upper end of the aggregate box 14 and extends to the inside. The spiral plate 13 is fixedly connected to the hollow shaft 11 through a connecting plate 17. A material deflecting plate 18 is fixedly provided at the end of the connecting plate 17.

[0023] A number of support cylinders 24 penetrating through are fixedly provided at the bottom of the aggregate box 14. A sliding rod 22 is provided inside the support cylinder 24. The top end of the sliding rod 22 upwardly penetrates through the support cylinder 24 and is fixedly connected to the push plate 15. The sliding rod 22 is slidably connected to the support cylinder 24. A number of cams 27 are fixedly provided on the outer wall of the fixed pipe 10. The bottom end of the sliding rod 22 is in frictional contact with the outer wall of the cam 27.

[0024] A stop plate 20 is fixedly provided on the outer wall of the sliding rod 22. A compression spring 21 is sleeved on the outer wall of the sliding rod 22. The two ends of the compression spring 21 respectively abut against the support cylinder 24 and the stop plate 20.

[0025] A number of rotatably arranged rotating sleeves 29 are sleeved on the outer wall of the fixed pipe 10. A number of sealing rings 30 which are in frictional contact with the outer wall of the fixed pipe 10 are embedded on the inner wall of the rotating sleeve 29. An arc-shaped ventilation groove 28 is penetrated and provided at the position of the outer wall of the fixed pipe 10 inside the sealing ring 30. A ventilation pipe 25 is fixedly provided on the outer wall of the rotating sleeve 29. One end of the ventilation pipe 25 penetrates through the rotating sleeve 29 and the sealing ring 30 and is in frictional contact with the outer wall of the fixed pipe 10. The other end of the ventilation pipe 25 penetrates through the hollow shaft 11 and is connected to the gas distribution box 19; When the sliding rod 22 is in contact with the push stroke area of the cam 27, the push plate 15 slides outwards, and the pipe orifice of the ventilation pipe 25 is communicated with the arc-shaped ventilation groove 28. When the sliding rod 22 is in contact with the return stroke area of the cam 27, the push plate 15 slides inwards, and the pipe orifice of the ventilation pipe 25 is not communicated with the arc-shaped ventilation groove 28. When the sliding rod 22 is in contact with the base circle area of the cam 27, the push plate 15 does not move, and the pipe orifice of the ventilation pipe 25 is not communicated with the arc-shaped ventilation groove 28.

[0026] A number of fixing plates 26 are fixedly provided on the outer wall of the rotating sleeve 29, and the fixing plates 26 are detachably connected to the hollow shaft 11.

[0027] A one-way valve 23 is provided on the ventilation pipe 25.

[0028] One end of the hollow shaft 11 is rotatably connected to one of the end covers 2, and the other end of the hollow shaft 11 penetrates through the other end cover 2 and is rotatably connected thereto. A driving motor 35 is fixedly provided on the top of the support base 1. Sprockets 33 are fixedly provided on the output end of the driving motor 35 and the outer wall of the hollow shaft 11, and the two sprockets 33 are connected by a chain 32.

[0029] A fixing frame 31 is fixedly provided on the top of the support base 1. One end of the fixed pipe 10 is sealed and extends outside the hollow shaft 11 and is fixedly connected to the fixing frame 31, and the fixed pipe 10 is fixedly connected to one of the end covers 2.

[0030] The water-cooled jacket 6 is fixedly connected to the support base 1 through a number of support frames 34.

[0031] The upper outer wall and the lower outer wall of the housing 3 are respectively fixedly provided with a feed pipe 4 and a discharge pipe 7 which are communicated. The upper outer wall and the lower outer wall of the water-cooled jacket 6 are respectively fixedly provided with a water outlet pipe 5 and a water inlet pipe 8 which are communicated.

[0032] The inner diameter of the nozzle of the air injection pipe 16 is smaller than the particle size of the potassium sulfate particles.

[0033] The working principle of this device is as follows: The driving motor 35 drives the hollow shaft 11 and the spiral blade 9 to rotate. The spiral blade 9 pushes the potassium sulfate particles in the housing 3. The cooling water in the water-cooled jacket 6 exchanges heat with the housing 3. The pushed potassium sulfate particles contact the inner wall of the housing 3 for cooling. When the hollow shaft 11 rotates, it drives the aggregate box 14 and the spiral plate 13 to rotate. During the process that the bottom end of the sliding rod 22 contacts the return stroke area and the base circle area of the cam 27 successively, the spiral plate 13 continuously inserts into the materials in the housing 3. The materials enter the material passing groove 12 of the spiral plate 13. When the aggregate box 14 is lower than the height of the materials inside the housing 3, the materials in the material passing groove 12 enter the aggregate box 14. When the aggregate box 14 rotates to the lowest position, the filling of the aggregate box 14 is completed (during this process, the rotating sleeve 29 rotates synchronously with the hollow shaft 11, but the nozzle of the ventilation pipe 25 is not communicated with the arc-shaped ventilation groove 28). Then the hollow shaft 11 continues to rotate. During the process that the bottom end of the sliding rod 22 contacts the push stroke area of the cam 27, the nozzle of the ventilation pipe 25 overlaps with the arc-shaped ventilation groove 28. The pressurized gas in the fixed pipe 10 enters the air distribution box 19 through the ventilation pipe 25 and is ejected from the jet pipe 16. The materials in the aggregate box 14 are blown by the pressurized gas into the spiral plate 13 and move along the spiral plate 13. The materials are cooled when contacting the upper inner wall of the housing 3 during the movement in the spiral plate 13. At the same time, the sliding rod 22 drives the push plate 15 to slide outwards under the push of the push stroke area of the cam 27, thereby pushing the materials in the aggregate box 14 outwards, which is convenient for the materials in the aggregate box 14 to be blown out. The materials blown out from the spiral plate 13 re-enter the inside of the housing 3. When the sliding rod 22 passes through the return stroke area of the cam 27, the push plate 15 slides inwards and resets. This device can increase the contact area between the potassium sulfate particles and the inner wall of the housing 3. Under the same pushing distance, the effective heat exchange efficiency is greatly improved. Thanks to this improvement, the pushing distance required for the device to cool the potassium sulfate particles is greatly shortened, which not only effectively reduces the cooling cycle, but also reduces the installation space requirement of the device; When the pressurized gas provided by the external air source passes through the fixed pipe 10, since part of the fixed pipe 10 is in the water-cooled jacket 6, the pressurized gas is cooled when passing through this part of the area. Using low-temperature gas to blow the materials further speeds up the cooling rate of the potassium sulfate particles; When the hollow shaft 11 rotates, it drives the material baffle 18 to rotate. The material baffle 18 turns over the materials in the housing 3. This device can turn over the potassium sulfate particles during the process of pushing the potassium sulfate particles, improving the contact condition between the potassium sulfate particles and the inner wall of the housing 3, enabling the materials to continuously alternate contact with the cooling surface, and achieving a faster and more uniform cooling effect on the potassium sulfate particles.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered within the scope of the claims and the specification of the present invention.

Claims

1. A cooling pusher for potassium sulfate transportation, characterized in that: It includes a support base (1), a housing (3) is fixedly arranged on the top of the support base (1), end covers (2) are detachably arranged at both ends of the housing (3), a water-cooled jacket (6) is fixedly arranged on the outer wall of the housing (3), a hollow shaft (11) is rotatably arranged inside the housing (3), a spiral blade (9) is fixedly arranged on the outer wall of the hollow shaft (11), a number of fixedly arranged aggregate bins (14) are axially arranged on the outer wall of the hollow shaft (11), the top of the aggregate bin (14) is open and in frictional contact with the inner wall of the housing (3), a spiral plate (13) which is in frictional contact with the inner wall of the housing (3) and has the same spiral direction as the spiral blade (9) is fixedly arranged at the end of the aggregate bin (14), a material passing groove (12) communicating with the inner cavity of the aggregate bin (14) is arranged at the top of the spiral plate (13), a push plate (15) is slidably arranged in the aggregate bin (14), a fixed pipe (10) is fixedly arranged inside the hollow shaft (11), one end of the fixed pipe (10) penetrates through the end cover (2) and the water-cooled jacket (6) and is connected to an external air source, a gas distribution box (19) which is intermittently communicated with the fixed pipe (10) is fixedly arranged at the end of the aggregate bin (14), a number of communicating jet pipes (16) are fixedly arranged on the top of the gas distribution box (19), one end of the jet pipe (16) passes through the upper end of the aggregate bin (14) and extends to the inside, the spiral plate (13) is fixedly connected to the hollow shaft (11) through a connecting plate (17), and a material deflecting plate (18) is fixedly arranged at the end of the connecting plate (17).

2. The cooling pusher for potassium sulfate transportation according to claim 1, wherein: A number of through-support cylinders (24) are fixedly arranged at the bottom of the aggregate bin (14), a sliding rod (22) is arranged inside the support cylinder (24), the top end of the sliding rod (22) passes upward through the support cylinder (24) and is fixedly connected to the push plate (15), the sliding rod (22) is slidably connected to the support cylinder (24), a number of cams (27) are fixedly arranged on the outer wall of the fixed pipe (10), and the bottom end of the sliding rod (22) is in frictional contact with the outer wall of the cam (27).

3. The cooling pusher for potassium sulfate transportation according to claim 2, wherein: A stop plate (20) is fixedly arranged on the outer wall of the sliding rod (22), a compression spring (21) is sleeved on the outer wall of the sliding rod (22), and the two ends of the compression spring (21) are respectively abutted against the support cylinder (24) and the stop plate (20).

4. A cooling pusher for potassium sulfate transportation according to claim 2, characterized in that: A number of rotatably arranged rotating sleeves (29) are sleeved on the outer wall of the fixed pipe (10), a number of sealing rings (30) which are in frictional contact with the outer wall of the fixed pipe (10) are embedded on the inner wall of the rotating sleeve (29), an arc-shaped ventilation groove (28) is arranged through the outer wall of the fixed pipe (10) at the position inside the sealing ring (30), a ventilation pipe (25) is fixedly arranged on the outer wall of the rotating sleeve (29), one end of the ventilation pipe (25) passes through the rotating sleeve (29) and the sealing ring (30) and is in frictional contact with the outer wall of the fixed pipe (10), and the other end of the ventilation pipe (25) passes through the hollow shaft (11) and is connected to the gas distribution box (19).

5. A cooling pusher for potassium sulfate transportation according to claim 4, characterized in that: A number of fixing plates (26) are fixedly arranged on the outer wall of the rotating sleeve (29), and the fixing plate (26) is detachably connected to the hollow shaft (11).

6. The cooling pusher for potassium sulfate transportation according to claim 4, wherein: A one-way valve (23) is provided on the vent pipe (25).

7. A cooling pusher for potassium sulfate transportation according to claim 1, characterized in that: One end of the hollow shaft (11) is rotatably connected to one of the end caps (2), the other end of the hollow shaft (11) penetrates through the other end cap (2) and is rotatably connected thereto, a driving motor (35) is fixedly provided on the top of the support base (1), sprockets (33) are fixedly provided on the output end of the driving motor (35) and the outer wall of the hollow shaft (11), and the two sprockets (33) are connected by a chain (32).

8. A cooling pusher for potassium sulfate transportation according to claim 7, characterized in that: A fixing frame (31) is fixedly provided on the top of the support base (1), one end of the fixed pipe (10) is sealed and extends to the outside of the hollow shaft (11) and is fixedly connected to the fixing frame (31), and the fixed pipe (10) is fixedly connected to one of the end caps (2).

9. The cooling pusher for potassium sulfate transportation according to claim 1, wherein: The water-cooled jacket (6) is fixedly connected to the support base (1) through a plurality of support frames (34).

10. A cooling pusher for potassium sulfate transportation according to claim 1, characterized in that: A feed pipe (4) and a discharge pipe (7) which are connected in communication are respectively fixedly provided on the upper outer wall and the lower outer wall of the housing (3), and a water outlet pipe (5) and a water inlet pipe (8) which are connected in communication are respectively fixedly provided on the upper outer wall and the lower outer wall of the water-cooled jacket (6).

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