Granulator for producing catalyst

Abstract

The utility model relates to the technical field of catalyst production, and particularly discloses a granulator for producing a catalyst, which comprises a frame body, a feeding mechanism for conveying, mixing and stirring raw materials is arranged on the frame body, a granulating mechanism for extruding and granulating the conveyed and mixed materials is arranged on the lower side of the feeding mechanism, and the granulating mechanism is connected with the feeding mechanism; and the granulation mechanism comprises a bottom shell arranged on the frame body. Through the arrangement of the granulation mechanism and the feeding mechanism, when a vertical shaft rotates, a first bevel gear on the vertical shaft is meshed with a second bevel gear on a central shaft, a stirring rod and a second spiral blade on the central shaft are driven to rotate, and raw materials in a feeding hopper enter an upper shell through a communicating pipe after being mixed and stirred; the first spiral blade on the vertical shaft conveys a mixed material downwards, meanwhile, the extrusion roller rotates to extrude the mixed material, and the mixed material is extruded out through the material holes in the net cover ring, so that the raw material is mixed before granulation, meanwhile, the mixed material is preliminarily extruded before granulation, and the granulation efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst production, in particular to a granulator for producing catalysts. Background Art

[0002] In the preparation process of solid catalysts (such as oxalate hydrogenation catalyst, methanol synthesis catalyst), the dried or calcined powdery materials are granulated by physical actions such as rolling and extrusion for subsequent tabletting of the materials. However, at present, before the raw materials are extruded and granulated, they need to be mixed, and then added into the granulator for extrusion granulation, which results in low material processing efficiency. Moreover, during the direct extrusion process of the mixed materials, the materials are likely to be loose, affecting the granulation quality. Content of the Utility Model

[0003] The purpose of the utility model is to provide a granulator for producing catalysts to solve the above problems.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] A granulator for producing catalysts includes a frame body. A feeding mechanism for conveying and mixing raw materials is arranged on the frame body. A granulating mechanism for extruding and granulating the conveyed and mixed materials is arranged below the feeding mechanism. The granulating mechanism is connected to the feeding mechanism. The granulating mechanism includes a bottom shell arranged on the frame body. A mesh cover ring is arranged at the inner bottom of the bottom shell. An upper shell pressing on the mesh cover ring is arranged at the upper end of the bottom shell. A vertical shaft is arranged inside the bottom shell and the upper shell. The upper end of the vertical shaft passes through the upper shell and is installed with a first bevel gear. A mounting seat is fixed inside the mesh cover ring at the lower side of the vertical shaft. Extrusion rollers are evenly distributed around the vertical shaft on the mounting seat. The lower end of the vertical shaft is connected with a power component. An outlet hopper is arranged on the outer wall of the bottom shell. The feeding mechanism includes a feeding cylinder horizontally arranged at the upper end of the frame body. A central shaft is arranged at the center of the feeding cylinder. One end of the central shaft passes through the feeding cylinder and is installed with a second bevel gear. A second spiral blade is arranged on the central shaft inside the feeding cylinder. Stirring rods are arranged on the central shaft on both sides of the second spiral blade. A feeding hopper is arranged at one side of the upper end of the feeding cylinder far from the vertical shaft. The lower end of the feeding cylinder is communicated with the upper side of the upper shell through a connecting pipe.

[0006] Further setting: A first spiral blade is arranged on the vertical shaft above the mounting seat. The outer diameter of the first spiral blade is tangent to the inner diameter of the inner wall of the upper shell.

[0007] Further setting: A main gear is fixed on the vertical shaft above the mounting seat. The upper end of the extrusion roller passes through the mounting seat and is provided with a sub-gear. A protective cover is arranged above the mounting seat.

[0008] Further setting: The extrusion roller is rotatably connected to the mounting seat. The main gear and the sub-gear are meshed and rotated.

[0009] Further settings: The vertical shaft is rotationally connected to the bottom shell and the upper shell, and the first bevel gear meshes with the second bevel gear.

[0010] Further settings: The central shaft is rotationally connected to the feeding cylinder, and the stirring rod and the second spiral blade are welded to the central shaft.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the settings of the granulation mechanism and the feeding mechanism, when the vertical shaft rotates, the first bevel gear on the vertical shaft meshes with the second bevel gear on the central shaft, driving the stirring rod and the second spiral blade on the central shaft to rotate. After mixing the raw materials in the feeding hopper, they enter the upper shell through the connecting pipe. The first spiral blade on the vertical shaft conveys the mixed material downward, and at the same time, the extrusion roller rotates to extrude the mixed material, which is extruded through the material holes on the mesh cover ring, enabling the raw materials to be mixed before granulation and at the same time performing preliminary extrusion on the mixed material before granulation, improving the granulation efficiency and quality. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 is a schematic structural diagram of a granulator for producing catalysts according to the present utility model;

[0015] Figure 2 is a main sectional structural diagram of a granulator for producing catalysts according to the present utility model;

[0016] Figure 3 is a partial sectional structural diagram of a granulator for producing catalysts according to the present utility model;

[0017] Figure 4 is a partial structural diagram of the granulation mechanism of a granulator for producing catalysts according to the present utility model;

[0018] Figure 5 is Figure 4 a structural diagram in a partially disassembled state of

[0019] The descriptions of the reference numerals are as follows:

[0020] 1. Frame; 21. Bottom shell; 22. Mesh cover ring; 23. Upper shell; 24. Vertical shaft; 25. First helical blade; 26. Mounting seat; 27. Extrusion roller; 28. Sub-gear; 29. Main gear; 210. Protective cover; 211. First bevel gear; 212. Power component; 31. Feed hopper; 32. Central shaft; 33. Second bevel gear; 34. Feeding hopper; 35. Second helical blade; 36. Stirring rod; 37. Connecting pipe; 4. Discharge hopper. Detailed implementation mode

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] As Figures 1-5 shown, a granulator for producing catalysts includes a frame 1. A feeding mechanism for conveying and mixing raw materials is provided on the frame 1. A granulating mechanism for extruding and granulating the conveyed and mixed materials is provided below the feeding mechanism. The granulating mechanism is connected to the feeding mechanism;

[0025] In this embodiment: The granulating mechanism includes a bottom shell 21 arranged on the frame 1. A screen cover ring 22 is arranged at the inner bottom of the bottom shell 21. An upper shell 23 is arranged at the upper end of the bottom shell 21 and presses on the screen cover ring 22. A vertical shaft 24 is arranged inside the bottom shell 21 and the upper shell 23. The upper end of the vertical shaft 24 passes through the upper shell 23 and is equipped with a first bevel gear 211. A mounting seat 26 is fixed inside the screen cover ring 22 on the lower side of the vertical shaft 24. Extrusion rollers 27 are evenly distributed around the vertical shaft 24 on the mounting seat 26. The lower end of the vertical shaft 24 is connected with a power component 212. The power component 212 is a gearbox and a power motor. The output end of the power motor is connected with the input end of the gearbox. A discharge hopper 4 is arranged on the outer wall of the bottom shell 21. The vertical shaft 24 is rotationally connected with the bottom shell 21 and the upper shell 23. A first spiral blade 25 is arranged on the vertical shaft 24 above the mounting seat 26. The outer diameter of the first spiral blade 25 is tangent to the inner diameter of the inner wall of the upper shell 23. A main gear 29 is fixed on the vertical shaft 24 above the mounting seat 26. The upper end of the extrusion roller 27 passes through the mounting seat 26 and is equipped with a sub-gear 28. A shield 210 is arranged above the mounting seat 26. The extrusion roller 27 is rotationally connected with the mounting seat 26. The main gear 29 and the sub-gear 28 are meshed and rotated. By the operation of the power component 212, the vertical shaft 24 is driven to rotate. The first spiral blade 25 on the vertical shaft 24 squeezes and conveys the mixed material downward. After falling into the bottom shell 21, the whole mounting seat 26 driven by the vertical shaft 24 rotates. At the same time, the main gear 29 and the sub-gear 28 are meshed and rotated, so that the extrusion roller 27 rotates itself, squeezes the mixed material, and extrudes it into particles through the material holes on the screen cover ring 22 and discharges it through the discharge hopper 4.

[0026] In this embodiment: The feeding mechanism includes a feeding cylinder 31 horizontally arranged at the upper end of the frame 1. A central shaft 32 is arranged at the center of the feeding cylinder 31. One end of the central shaft 32 passes through the feeding cylinder 31 and is equipped with a second bevel gear 33. A second spiral blade 35 is arranged on the central shaft 32 inside the feeding cylinder 31. Stirring rods 36 are arranged on the central shaft 32 on both sides of the second spiral blade 35. A feeding hopper 34 is arranged at the upper end of the feeding cylinder 31 on the side far from the vertical shaft 24. The lower end of the feeding cylinder 31 is communicated with the upper side of the upper shell 23 through a connecting pipe 37. The first bevel gear 211 is meshed with the second bevel gear 33. The central shaft 32 is rotationally connected with the feeding cylinder 31. The stirring rods 36 and the second spiral blade 35 are welded to the central shaft 32. When the vertical shaft 24 rotates, the first bevel gear 211 at the upper end of the vertical shaft 24 is meshed with the second bevel gear 33 on the central shaft 32 and rotated, so that the central shaft 32 drives the stirring rods 36 and the second spiral blade 35 to rotate, mixes the raw materials in the feeding hopper 34, then moves towards the connecting pipe 37 side, and enters the upper shell 23 through the connecting pipe 37 to realize feeding after mixing.

[0027] Working principle and usage process of the utility model: Add raw materials into the feeding hopper 34. Drive the vertical shaft 24 to rotate through the operation of the power component 212. The first bevel gear 211 at the upper end of the vertical shaft 24 meshes with the second bevel gear 33 on the central shaft 32 to drive the central shaft 32 to rotate, driving the stirring rod 36 and the second spiral blade 35 to rotate, mixing the raw materials in the feeding hopper 34, and at the same time moving towards one side of the connecting pipe 37. After passing through the connecting pipe 37, it enters the upper shell 23. The first spiral blade 25 on the vertical shaft 24 conveys the mixed material downward. After falling into the bottom shell 21, the entire mounting seat 26 driven by the vertical shaft 24 rotates. At the same time, the main gear 29 meshes with the secondary gear 28 to drive the extrusion roller 27 to rotate itself, extruding the mixed material. The extruded material passes through the material holes on the mesh cover ring 22 and is discharged in a granular form through the discharge hopper 4.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A granulator for producing catalysts, comprising a frame body (1), characterized in that: A feeding mechanism for conveying and mixing raw materials is provided on the frame body (1). A granulating mechanism for extruding and granulating the conveyed mixture is provided below the feeding mechanism. The granulating mechanism is connected to the feeding mechanism. The granulating mechanism includes a bottom shell (21) provided on the frame body (1). A mesh cover ring (22) is provided at the inner bottom of the bottom shell (21). An upper shell (23) is provided at the upper end of the bottom shell (21) and presses on the mesh cover ring (22). A vertical shaft (24) is provided inside the bottom shell (21) and the upper shell (23). A first bevel gear (211) is installed at the upper end of the vertical shaft (24) passing through the upper shell (23). A mounting seat (26) is fixed inside the mesh cover ring (22) at the lower side of the vertical shaft (24). Extrusion rollers (27) are evenly distributed around the vertical shaft (24) on the mounting seat (26). A power member (212) is connected to the lower end of the vertical shaft (24). A discharge hopper (4) is provided on the outer wall of the bottom shell (21). The feeding mechanism includes a feeding cylinder (31) horizontally provided at the upper end of the frame body (1). A central shaft (32) is provided at the center of the feeding cylinder (31). A second bevel gear (33) is installed at one end of the central shaft (32) passing through the feeding cylinder (31). A second spiral blade (35) is provided on the central shaft (32) inside the feeding cylinder (31). Stirring rods (36) are provided on both sides of the second spiral blade (35) on the central shaft (32). A feeding hopper (34) is provided at one side of the upper end of the feeding cylinder (31) away from the vertical shaft (24). A connecting pipe (37) is provided for connecting the lower end of the feeding cylinder (31) and the upper side of the upper shell (23).

2. The granulator for producing a catalyst according to claim 1, characterized in that: A first spiral blade (25) is provided on the vertical shaft (24) above the mounting seat (26), and the outer diameter of the first spiral blade (25) is tangent to the inner diameter of the inner wall of the upper shell (23).

3. The granulator for producing a catalyst according to claim 1, characterized in that: A main gear (29) is fixed on the vertical shaft (24) above the mounting seat (26). A sub-gear (28) is provided at the upper end of the extrusion roller (27) passing through the mounting seat (26). A shield (210) is provided above the mounting seat (26).

4. A granulator for producing a catalyst according to claim 3, characterized in that: The extrusion roller (27) is rotatably connected to the mounting seat (26), and the main gear (29) and the sub-gear (28) are meshed and rotated.

5. A granulator for producing a catalyst according to claim 1, characterized in that: The vertical shaft (24) is rotatably connected to the bottom shell (21) and the upper shell (23), and the first bevel gear (211) is meshed with the second bevel gear (33).

6. A granulator for producing a catalyst according to claim 1, characterized in that: The central shaft (32) is rotatably connected to the feeding cylinder (31), and the stirring rod (36) and the second spiral blade (35) are welded to the central shaft (32).

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