阅读说明：本技术 一种用于造粒室的辐射梁专用施工平台及其安装方法 (Special construction platform for radiation beam of granulation chamber and installation method thereof ) 是由 姬双成 宋迎旭 宋福喜 马金龙 李桂菊 姬凯 肖洪辉 于 2021-09-27 设计创作，主要内容包括：本发明提供一种用于造粒室的辐射梁专用施工平台及其安装方法,其中,施工平台包括旋转支撑机构、立柱及第一工作台,旋转支撑机构固定设置,立柱的上端转动安装在旋转支撑机构上并由旋转支撑机构驱动其转动,第一工作台水平设置且其中部固定连接在立柱的中部,在第一工作台的周围呈圆形阵列分布有第二工作台,第二工作台为向下倾斜的条形结构,条形结构的上端与第一工作台固定连接,在条形结构的中部与立柱的下部固定连接有支撑结构。通过旋转支撑机构和立柱将工作台设置在造粒室和辐射梁下方,通过旋转立柱,实现工作台的旋转,进而让位于工作台上的工人能对相应位置的辐射梁进行作业；本发明结构设计合理,便于装配、拆卸和施工,且工期短。(The invention provides a special construction platform for a radiation beam of a granulation chamber and an installation method thereof, wherein the construction platform comprises a rotary support mechanism, an upright post and a first workbench, the rotary support mechanism is fixedly arranged, the upper end of the upright post is rotatably arranged on the rotary support mechanism and is driven by the rotary support mechanism to rotate, the first workbench is horizontally arranged, the middle part of the first workbench is fixedly connected to the middle part of the upright post, second workbench is distributed around the first workbench in a circular array, the second workbench is of a downward-inclined strip-shaped structure, the upper end of the strip-shaped structure is fixedly connected with the first workbench, and the middle part of the strip-shaped structure is fixedly connected with the lower part of the upright post. The workbench is arranged below the granulation chamber and the radiation beam through the rotary supporting mechanism and the upright post, and the rotation of the workbench is realized through the rotation of the upright post, so that workers on the workbench can operate the radiation beam at the corresponding position; the invention has reasonable structural design, convenient assembly, disassembly and construction and short construction period.)

1. The utility model provides a special construction platform of radiation beam for granulation room which characterized in that: including rotary supporting mechanism, stand and first workstation, rotary supporting mechanism is fixed to be set up, the upper end of stand is rotated and is installed rotary supporting mechanism goes up and by it rotates to rotary supporting mechanism drive it, first workstation level sets up and its middle part fixed connection is in the middle part of stand it has the second workstation to be circular array distribution around the first workstation, the second workstation is the bar structure of downward sloping, the upper end of bar structure with first workstation fixed connection the middle part of bar structure with the lower part fixedly connected with bearing structure of stand.

2. The construction platform special for the radiant beam of the granulation chamber as claimed in claim 1, wherein: rotatory supporting mechanism includes slewing bracket and hoist and mount rope, the fixed setting in upper end of hoist and mount rope, the rotatory lifting hook of lower extreme fixedly connected with of hoist and mount rope, rotatory lifting hook joint is in the upper end of stand install the gyration between stand and the slewing bracket and support, the gyration is supported by its rotation of speed reducer drive that sets firmly on the slewing bracket.

3. The construction platform special for the radiant beam of the granulation chamber as claimed in claim 2, wherein: the hoisting rope is wound on the winch, the winch is fixedly connected to the hoisting support, and the winch is located right above the rotary support.

4. The construction platform special for the radiant beam of the granulation chamber as claimed in claim 3, wherein: the hoisting device is characterized in that a rope guide mechanism is fixedly arranged on the hoisting support corresponding to the hoisting rope, the rope guide mechanism comprises two groove wheels which are arranged side by side, grooves of the two groove wheels are oppositely arranged, a circular through groove is formed between the grooves, and the hoisting rope is arranged in the circular through groove in a penetrating mode.

5. The construction platform special for the radiant beam of the granulation chamber as claimed in claim 1, wherein: first workstation includes central platform and connection platform, central platform includes that the plane is regular polygon's first frame construction, first frame construction's central point put with stand fixed connection, connection platform is the rectangular second frame construction of last plane, second workstation fixed connection be in on the second frame construction in the first workstation, the inner fixed connection of second frame is in on the side of central platform, the outer end of second frame construction with the upper end fixed connection of first workstation the first handrail of fixedly connected with on the relative both sides side of connection platform, form first passageway between the last plane of first handrail and connection platform.

6. The construction platform special for the radiant beam of the granulation chamber as claimed in claim 5, wherein: the bar-shaped structure of the second workbench comprises a ladder stand which is obliquely arranged, second handrails are fixedly connected to the two sides of the ladder stand, a second passageway is formed between the ladder stand and the second handrails, the supporting structure is supported below the ladder stand in the second workbench, and the ladder stand in the second workbench is fixedly connected with the connecting platform.

7. The construction platform special for the radiant beam of the granulation chamber as claimed in claim 6, wherein: the ladder stand comprises an upper ladder stand, the upper end of the upper ladder stand is fixedly connected with the connecting platform, two lower ladder stands are fixedly connected with the lower end of the upper ladder stand, and the two lower ladder stands are symmetrically arranged relative to a downward extension line of the upper ladder stand.

8. The construction platform special for the radiant beam of the granulation chamber as claimed in claim 1, wherein: the lifting basket is positioned between the adjacent connecting platforms.

9. A mounting method of a special construction platform for a radiation beam of a granulation chamber is characterized by comprising the following steps:

step 1: a rotary supporting mechanism is fixedly arranged on the bottom plate of the granulation chamber at the mounting opening;

step 2: a winch is fixedly arranged on the top plate of the granulation chamber corresponding to the position of the rotary supporting mechanism;

and step 3: fixedly installing a first workbench, a second workbench and a supporting structure on the upright post on the ground;

and 4, step 4: enabling a hoisting rope wound on the winch to pass through the mounting opening and then fall onto the ground, and fixedly connecting a rotary lifting hook to the lower end of the hoisting rope, wherein the optional lifting hook is clamped at the upper end of the upright post;

and 5: lifting the upright post through a lifting rope and enabling the upper end part of the upright post to be positioned in the rotary supporting mechanism;

step 6: the rotary supporting mechanism comprises a rotary support, a rotary support and a speed reducer, the rotary support is fixedly connected to a bottom plate of the granulation tower, the rotary support and the speed reducer are fixedly installed on the rotary support and are linked, and the stand column is fixedly installed on the rotary support and rotates along with the rotary support.

10. The method for installing the construction platform special for the radiant beam of the granulation chamber as claimed in claim 9, wherein: the hoisting machine is positioned outside the granulating chamber and on a top plate of the granulating chamber, a through hole for penetrating a hoisting rope is formed in the position, corresponding to the mounting hole, of the top plate, the hoisting rope is positioned in the through hole, a rope guide mechanism is fixedly arranged on the hoisting support corresponding to the position of the hoisting rope, the rope guide mechanism comprises two groove wheels which are arranged in parallel, grooves of the two groove wheels are oppositely arranged, a circular through groove is formed between the grooves of the two groove wheels, and the hoisting rope penetrates in the circular through groove; the rotary supporting mechanism is positioned in the granulating chamber and on a bottom plate of the granulating chamber, and the upright column is arranged in the mounting hole in a penetrating manner.

Technical Field

The invention relates to a maintenance technology of a supporting structure below a granulation chamber in a granulation tower, in particular to a special construction platform for a radiation beam of the granulation chamber and an installation method thereof.

Background

The urea prilling tower is a device for producing granular urea. The urea solution is evaporated and concentrated to more than 99.5 percent, the obtained urea melt is pumped to the top of a granulation tower, sprayed into liquid drops by a spray head, falls, is in countercurrent contact with air, is cooled and solidified into granular urea with the particle size of 0.8-2.5 mm. The prilling tower is generally a vertical hollow cylindrical structure poured by reinforced concrete, the top of the tower is provided with an air outlet and an operation chamber, the center of the upper part of the tower is provided with a spray nozzle, the bottom of the tower is provided with an air inlet and a material collecting device (a conical collecting hopper and a scraper), and the prilling tower is also provided with a fluidized bed cooling device. In order to prevent the urea dust from polluting the environment, a filter or a water spraying wet dust removal device is arranged at the top of the granulating tower. As urea has strong corrosivity to cement, the inner wall of the tower body must be provided with a protective layer, polyurethane and epoxy resin are generally used as coatings, and acid-resistant bricks and other linings are also used. The surface of the protective layer is required to be smooth and compact. The height of the prilling tower is such that the droplets have sufficient time to contact the air to solidify and cool.

The granulation tower is characterized in that a granulation chamber is arranged at the end part of the top end in the granulation tower, the granulation chamber is arranged in a suspended mode and is fixedly connected with the inner wall of the granulation tower through an inclined radiation beam, the radiation beam is uniformly distributed around the lower part of the granulation chamber, the upper end of the radiation beam is fixedly connected with the granulation chamber, the radiation beam is made of reinforced concrete, a corrosion-resistant coating needs to be arranged on the radiation beam, the coating on the radiation beam needs to be renewed after four to five years, and along with the construction requirement, a special construction platform needs to be designed for the radiation beam for renewing the coating on the radiation beam, and assembly and construction are convenient.

Disclosure of Invention

Aiming at the requirements in the prior art, the invention provides a special construction platform for a radiation beam of a granulation chamber and an installation method thereof.

The utility model provides a special construction platform of radiant beam for granulation room, includes rotatory supporting mechanism, stand and first workstation, rotatory supporting mechanism is fixed to be set up, the upper end of stand is rotated and is installed rotatory supporting mechanism is last and by it rotates to rotate supporting mechanism drive, first workstation level sets up and its middle part fixed connection is in the middle part of stand it has the second workstation to be circular array distribution around the first workstation, the second workstation is the bar structure of downward sloping, the upper end of bar structure with first workstation fixed connection the middle part of bar structure with the lower part fixedly connected with bearing structure of stand.

The working principle of the invention is as follows: the method comprises the following steps that a rotary supporting mechanism is fixedly arranged in a granulation chamber, the upper end part of an upright post penetrates into the granulation chamber and is rotatably arranged on the rotary supporting mechanism, a first workbench and a second workbench are suspended below the granulation chamber through the upright post, a height distance of one person is reserved between the first workbench and the bottom surface of the granulation chamber, the second workbench and a radiation beam are arranged in parallel, a half-height distance is reserved between the second workbench and the radiation beam, the length of the second workbench is matched with that of the radiation beam, a worker prepares a coating on the first workbench, and then works on the radiation beam on the second workbench; in addition, when the radiation beam near the second workbench is required to operate, the second workbench can be rotated to move to the radiation beam through the rotary supporting mechanism.

Further: rotatory supporting mechanism includes slewing bracket and hoist and mount rope, the fixed setting in upper end of hoist and mount rope, the rotatory lifting hook of lower extreme fixedly connected with of hoist and mount rope, rotatory lifting hook joint is in the upper end of stand install the gyration between stand and the slewing bracket and support, the gyration is supported by its rotation of speed reducer drive that sets firmly on the slewing bracket.

Further: the hoisting rope is wound on the winch, the winch is fixedly connected to the hoisting support, and the winch is located right above the rotary support. The hoisting rope is lifted through the winch and drives the stand column to move up and down, so that the first workbench and the second workbench are mounted on the stand column on the ground, and then the workbench is lifted to the working height.

Further: the hoisting device is characterized in that a rope guide mechanism is fixedly arranged on the hoisting support corresponding to the hoisting rope, the rope guide mechanism comprises two groove wheels which are arranged side by side, grooves of the two groove wheels are oppositely arranged, a circular through groove is formed between the grooves, and the hoisting rope is arranged in the circular through groove in a penetrating mode. The hoisting rope is limited between the circular through grooves, and the hoisting rope is prevented from swinging left and right.

Further: first workstation includes central platform and connection platform, central platform includes that the plane is regular polygon's first frame construction, first frame construction's central point put with stand fixed connection, connection platform is the rectangular second frame construction of last plane, second workstation fixed connection be in on the second frame construction in the first workstation, the inner fixed connection of second frame is in on the side of central platform, the outer end of second frame construction with the upper end fixed connection of first workstation the first handrail of fixedly connected with on the relative both sides side of connection platform, form first passageway between the last plane of first handrail and connection platform. The first workbench is split into two parts, so that the first workbench can be conveniently produced and assembled.

Further: the supporting structure is supported below the connecting platform, and the structural strength of the first workbench is improved.

Further: the bar-shaped structure of the second workbench comprises a ladder stand which is obliquely arranged, second handrails are fixedly connected to the two sides of the ladder stand, a second passageway is formed between the ladder stand and the second handrails, the supporting structure is supported below the ladder stand in the second workbench, and the ladder stand in the second workbench is fixedly connected with the connecting platform.

Further: the ladder stand includes the cat ladder, the cat ladder with radiant beam parallel arrangement, the upper end of cat ladder with connecting platform fixed connection two lower ladders of lower extreme fixedly connected with of cat ladder, two lower ladders about the downward extension line symmetry setting of cat ladder. When workers work, the workers sometimes need to work on the side faces of the radiation beams between the adjacent radiation beams, gaps between the end portions of the lower ends of the adjacent radiation beams are large, one ladder stand is inconvenient to operate, and the two lower ladder stands are arranged to be close to the side walls of the two adjacent radiation beams respectively, so that the workers can conveniently work on the side walls of the end portions of the lower ends of the adjacent radiation beams.

Further: including the lift hanging flower basket, the lift hanging flower basket is located adjacently between the connection platform, the lift hanging flower basket includes crossbeam and hanging flower basket, the crossbeam spanes and sets up adjacently between the connection platform and with corresponding connection platform fixed connection, the lift rope fixed connection at hanging flower basket both ends is on the crossbeam. Set up the lift hanging flower basket, be convenient for ground to transport the material and be convenient for workman workstation from top to bottom on the workstation.

A method for installing a special construction platform for a radiation beam of a granulation chamber is characterized in that an installation opening is formed in the center of a bottom plate of the granulation chamber, and the method comprises the following steps:

step 1: a rotary supporting mechanism is fixedly arranged on the bottom plate of the granulation chamber at the mounting opening;

step 2: a winch is fixedly arranged on the top plate of the granulation chamber corresponding to the position of the rotary supporting mechanism;

and step 3: fixedly installing a first workbench, a second workbench and a supporting structure on the upright post on the ground;

and 4, step 4: enabling a hoisting rope wound on the winch to pass through the mounting opening and then fall onto the ground, and fixedly connecting a rotary lifting hook to the lower end of the hoisting rope, wherein the optional lifting hook is clamped at the upper end of the upright post;

and 5: lifting the upright post through a lifting rope and enabling the upper end part of the upright post to be positioned in the rotary supporting mechanism;

step 6: the rotary supporting mechanism comprises a rotary support, a rotary support and a speed reducer, the rotary support is fixedly connected to a bottom plate of the granulation tower, the rotary support and the speed reducer are fixedly installed on the rotary support and are linked, and the stand column is fixedly installed on the rotary support and rotates along with the rotary support.

Further: the hoisting machine is positioned outside the granulating chamber and on a top plate of the granulating chamber, a through hole for penetrating a hoisting rope is formed in the position, corresponding to the mounting hole, of the top plate, the hoisting rope is positioned in the through hole, a rope guide mechanism is fixedly arranged on the hoisting support corresponding to the position of the hoisting rope, the rope guide mechanism comprises two groove wheels which are arranged in parallel, grooves of the two groove wheels are oppositely arranged, a circular through groove is formed between the grooves of the two groove wheels, and the hoisting rope penetrates in the circular through groove; the rotary supporting mechanism is positioned in the granulating chamber and on a bottom plate of the granulating chamber, and the upright column is arranged in the mounting hole in a penetrating manner. The installation of the hoist engine of being convenient for is fixed, prevents simultaneously that the through-hole from rubbing hoist and mount rope.

The invention has the beneficial effects that: the workbench is arranged below the granulation chamber and the radiation beam through the rotary supporting mechanism and the upright post, and the rotation of the workbench is realized through the rotation of the upright post, so that workers on the workbench can operate the radiation beam at the corresponding position; the rotary supporting mechanisms are arranged on the bottom plate and the top plate of the granulation chamber, so that the structure is stable, the arrangement is convenient, and the bearing capacity is strong; the rotary supporting mechanism, the upright post and the workbench are convenient to assemble and disassemble, rapid construction is facilitated, and the construction period is shortened; the invention has reasonable structural design, convenient assembly, disassembly and construction and short construction period.

Drawings

FIG. 1 is a schematic structural view of a construction platform according to the present invention;

FIG. 2 is a schematic view of an assembly structure of a rotary support, a rotary support and a speed reducer in a construction platform;

FIG. 3 is a schematic view of an assembly structure of a workbench and a column in a construction platform;

FIG. 4 is a schematic view of an assembly structure of a winch and a hoisting bracket in a construction platform;

FIG. 5 is a schematic view of an assembly structure of a connecting platform and a lifting basket in a construction platform;

FIG. 6 is a schematic top view of a ladder stand in a construction platform;

FIG. 7 is a top view of the ladder and the radiant beam in positional relationship;

fig. 8 is a sectional view of the positional relationship between the construction platform, the granulation chamber and the radiant beam.

In the figure, 1, a rotary supporting mechanism; 11. hoisting a rope; 12. a rotating support; 13. a rotary support; 14. hoisting a support; 15. a winch; 16. a reinforcing cord; 17. a speed reducer; 18. a rope guide mechanism; 2. a work table; 21. a first table; 211. a central platform; 212. connecting the platform; 213. a first armrest; 22. a second table; 221. climbing a ladder; 222. a second handrail; 2211. climbing a ladder; 2212. climbing a ladder downwards; 3. a column; 4. a support structure; 5. lifting the hanging basket; 51. a cross beam; 52. a hanging basket; 6. a granulation chamber; 61. a ventilation wall; 62. a cantilever crane; 63. a top plate of the granulation chamber; 64. a bottom plate of the granulation chamber; 7. a radiation beam; 8. and (4) a granulation tower.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention. The terms of orientation such as left, center, right, up, down, etc. in the examples of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

The utility model provides a special construction platform of radiant beam for granulation room, includes rotary support mechanism 1, stand 3 and first workstation 21, rotary support mechanism 1 is fixed to be set up, the upper end of stand 3 is rotated and is installed rotary support mechanism 1 is last and by it rotates to rotate rotary support mechanism 1 drive, first workstation 21 level set up and its middle part fixed connection be in the middle part of stand 3 it has second workstation 22 to be circular array distribution around first workstation 21, second workstation 22 is the bar structure of downward sloping, bar structure's upper end with first workstation 21 fixed connection bar structure's middle part with the lower part fixedly connected with bearing structure 4 of stand 3.

Wherein, rotatory supporting mechanism 1 includes slewing bracket 14 and hoist and mount rope 11, the fixed setting in upper end of hoist and mount rope 11, the rotatory lifting hook of lower extreme fixedly connected with of hoist and mount rope 11, rotatory lifting hook joint is in the upper end of stand 3 install the gyration between stand 3 and slewing bracket 12 and support 13, the gyration is supported 13 quilt its rotation of speed reducer 17 drive that sets firmly on slewing bracket 12. The hoisting rope 11 is wound on a winch 17, the winch 17 is fixedly connected to the hoisting support 14, and the winch 17 is located right above the rotary support 13. The hoisting support 14 is fixedly provided with a rope guiding mechanism 18 corresponding to the hoisting rope 11, the rope guiding mechanism 18 comprises two groove wheels which are arranged in parallel, grooves of the two groove wheels are oppositely arranged, a circular through groove is formed between the grooves, and the hoisting rope 11 is arranged in the circular through groove in a penetrating mode.

The first working platform 21 comprises a central platform 211 and a connecting platform 212, the central platform 211 comprises a first frame structure with a regular polygon upper plane, the central position of the first frame structure is fixedly connected with the upright post 3, a flange structure is fixedly arranged at the central position of the first frame structure, the first frame structure is fixedly connected with the upright post 3 through the flange structure, the connecting platform 212 is a second frame structure with a rectangular upper plane, the second worktable 22 is fixedly connected to the second frame structure in the first worktable 21, the inner end of the second frame structure is fixedly connected to the side edge of the central platform 211, the outer end of the second frame structure is fixedly connected to the upper end of the first workbench 21, first handrails 213 are fixedly connected to opposite lateral sides of the connecting platform 212, the first armrest 213 forms a first aisle with an upper plane of the connection platform 212. The support structure is also supported below the attachment platform.

In addition, the strip-shaped structure of the second workbench 22 comprises a ladder 221 which is obliquely arranged, second handrails 222 are fixedly connected to two sides of the ladder 221, a second passageway is formed between the ladder 221 and the second handrails 222, the support structure 4 is supported below the ladder 221 in the second workbench 22, and the ladder 221 in the second workbench 22 is fixedly connected with the connecting platform 212. The crawling ladder 221 comprises an upper crawling ladder 2211, the upper crawling ladder 2211 is parallel to the radiation beam 7, the upper end of the upper crawling ladder 2211 is fixedly connected with the connecting platform 212, two lower crawling ladders 2212 are fixedly connected to the lower end of the upper crawling ladder 2211, and the two lower crawling ladders 2212 are symmetrically arranged relative to a downward extension line of the upper crawling ladder 2211. Still include lifting basket 5, lifting basket 5 is located adjacently between the connection platform 212, and lifting basket 5 includes crossbeam 51 and hanging flower basket 52, crossbeam 51 span set up adjacently between the connection platform 212 and with corresponding connection platform fixed connection, the lifting rope fixed connection at hanging flower basket 52 both ends is on crossbeam 51.

The working principle of the invention is as follows: the method comprises the following steps that a rotary supporting mechanism is fixedly arranged in a granulation chamber, the upper end part of an upright post penetrates into the granulation chamber and is rotatably arranged on the rotary supporting mechanism, a first workbench and a second workbench are suspended below the granulation chamber through the upright post, a height distance of one person is reserved between the first workbench and the bottom surface of the granulation chamber, the second workbench and a radiation beam are arranged in parallel, a half-height distance is reserved between the second workbench and the radiation beam, the length of the second workbench is matched with that of the radiation beam, a worker prepares a coating on the first workbench, and then works on the radiation beam on the second workbench; in addition, when the radiation beam near the second workbench is required to operate, the second workbench can be rotated to move to the radiation beam through the rotary supporting mechanism. When workers work, the workers sometimes need to work on the side faces of the radiation beams between the adjacent radiation beams, gaps between the end portions of the lower ends of the adjacent radiation beams are large, one ladder stand is inconvenient to operate, and the two lower ladder stands are arranged to be close to the side walls of the two adjacent radiation beams respectively, so that the workers can conveniently work on the side walls of the end portions of the lower ends of the adjacent radiation beams. Set up the lift hanging flower basket, be convenient for ground to transport the material and be convenient for workman workstation from top to bottom on the workstation.

A method for installing a special construction platform for a radiation beam of a granulation chamber comprises the construction platform, and with reference to fig. 8, a mounting opening is formed in the center of a bottom plate 64 of the granulation chamber, and the method comprises the following steps:

step 1: a rotary supporting mechanism 1 is fixedly arranged on the bottom plate 64 of the granulation chamber at the mounting opening;

step 2: a winch 15 is fixedly arranged on the top plate 63 of the granulation chamber corresponding to the position of the rotary supporting mechanism 1;

and step 3: fixedly mounting a first workbench 21, a second workbench 22 and a support structure 4 on the upright post 3 on the ground;

and 4, step 4: the hoisting rope 11 wound on the winch 15 passes through the mounting hole and then falls to the ground, the lower end of the hoisting rope 11 is fixedly connected with a rotary hook, and the optional hook is clamped at the upper end of the upright post 3;

and 5: lifting the upright post 3 through a lifting rope 11 and enabling the upper end part of the upright post 3 to be positioned in the rotary supporting mechanism 1;

step 6: the rotary supporting mechanism 1 comprises a rotary support 12, a rotary support 13 and a speed reducer 17, the rotary support 12 is fixedly connected to a bottom plate 64 of the granulation tower, the rotary support 13 and the speed reducer 17 are fixedly installed on the rotary support 12, the rotary support 13 and the speed reducer 17 are linked, and the upright post 3 is fixedly installed on the rotary support 13 and rotates along with the rotary support 13.

The winch 15 is located outside the granulation chamber 6 and on the top plate 63 of the granulation chamber, a through hole for penetrating a hoisting rope 11 is formed in the top plate 63 of the granulation chamber at a position corresponding to the mounting opening, the hoisting rope 11 is located in the through hole, a rope guide mechanism 18 is fixedly arranged on the hoisting support 14 at a position corresponding to the hoisting rope 11, the rope guide mechanism 18 comprises two groove wheels which are arranged in parallel, grooves of the two groove wheels are oppositely arranged, a circular through groove is formed between the grooves of the two groove wheels, and the hoisting rope 11 penetrates in the circular through groove; the rotary supporting mechanism 1 is positioned in the granulation chamber 6 and on the granulation chamber bottom plate 64, and the upright column 3 is arranged in the mounting hole in a penetrating manner.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.