Double-roller granulator for laboratory

Abstract

The utility model belongs to the technical field of pelletizers, and particularly discloses a laboratory double-roller pelletizer which comprises a trapezoidal frame and a supporting box, and the supporting box is obliquely arranged relative to the trapezoidal frame; a first roller and a second roller are arranged on one side of the supporting box side by side; a first rotating shaft is arranged at the bottom of the first roller, a second rotating shaft is arranged at the bottom of the second roller, and the first rotating shaft and the second rotating shaft penetrate through the supporting box; a first driven wheel is arranged at one end, far away from the first roller, of the first rotating shaft, and a second driven wheel is arranged at one end, far away from the second roller, of the second rotating shaft; a motor is arranged at the top of the supporting box, a driving wheel is arranged at the output end of the motor, and the driving wheel, the first driven wheel and the second driven wheel are in transmission connection through a belt. The driving wheel, the first driven wheel and the second driven wheel are connected through the belt, the two rollers can be driven at the same time through one motor, work efficiency is improved, and in the research and development process, different auxiliary materials can be added into the two rollers so as to shorten research and development time.

Description

Technical Field

[0001] The utility model belongs to the technical field of granulators, in particular to a double-drum granulator for laboratory use. Background Art

[0002] In the process of preparing ceramsite sand, it is necessary to carry out processes such as crushing and granulation of materials. In order to ensure product quality, it is necessary to first carry out small-scale production in the laboratory, and then carry out batch production after reaching the standard. In the prior art, a drum granulator is used to complete the laboratory granulation. The Chinese patent with publication number CN215783204U discloses a drum granulator for the production of granular organic fertilizers. When granulation is carried out, the power mechanism drives the power shaft to rotate, and the power shaft drives the granulation tube to rotate to complete the granulation process. However, in the product development and test process, it is necessary to adjust different parameters such as wetting agents and dispersants in order to obtain high-performance ceramsite sand. However, in the above scheme, only one drum is provided, and only one parameter of auxiliary materials can be added during an experiment, and the research and development efficiency is low. Utility Model Content

[0003] The utility model aims to overcome the defects in the prior art and provide a double-drum granulator for laboratory use.

[0004] The utility model provides a double-drum granulator for laboratory use, comprising a ladder frame and a support box arranged on the ladder frame, wherein the support box is arranged obliquely relative to the ladder frame; a first drum and a second drum are arranged side by side on one side of the support box;

[0005] A first rotating shaft is disposed at the bottom of the first roller, and a second rotating shaft is disposed at the bottom of the second roller. The first rotating shaft is fixedly connected to the first roller, and the second rotating shaft is fixedly connected to the second roller. Both the first rotating shaft and the second rotating shaft pass through the supporting box.

[0006] A first driven wheel is disposed at one end of the first rotating shaft away from the first roller, and a second driven wheel is disposed at one end of the second rotating shaft away from the second roller;

[0007] A motor is arranged on the top of the support box, a driving wheel is arranged at the output end of the motor, and the driving wheel, the first driven wheel and the second driven wheel are connected through belt transmission.

[0008] A further solution is that a first fixed base is provided at the top of both sides of the ladder frame, and a first flange is provided at the top of the first fixed base;

[0009] Second fixed bases are arranged on both sides of the bottom of the support box, and a second flange is arranged at the bottom of the second fixed base;

[0010] The first flange and the second flange are coaxially arranged and a fixing beam is arranged between the first flange and the second flange. The fixing beam runs through two groups of the first flange and the second flange.

[0011] A further solution is that a first pressing wheel and a second pressing wheel are provided at the bottom of the support box;

[0012] The upper surface of the belt between the driving wheel and the first driven wheel abuts against the bottom of the first pressure wheel, and the upper surface of the belt between the driving wheel and the second driven wheel abuts against the bottom of the second pressure wheel.

[0013] A further solution is that the driving wheel, the first driven wheel and the second driven wheel are all gears, and the belt is a toothed belt, and the toothed belt is meshed and connected with the gears.

[0014] A further solution is that a plurality of ribs are provided on the circumference of one end of the first rotating shaft and the second rotating shaft away from the supporting box, and the bottom of the ribs is connected to the bottom of the first roller and / or the second roller.

[0015] A further solution is that a plurality of rotating shaft bases are arranged inside the supporting box, and the first rotating shaft and the second rotating shaft respectively penetrate through the rotating shaft bases and are rotatably connected to the rotating shaft bases.

[0016] A further solution is that a reducer is further provided between the motor and the driving wheel, and the reducer is axially connected to the motor and the driving wheel respectively.

[0017] Compared with the prior art, the beneficial effect of the utility model is that the utility model tilts the support box relative to the ladder frame. Since the first roller and the second roller are both arranged on the support box, the openings of the first roller and the second roller are both tilted upward, which can prevent the material from spilling during the rolling granulation process. The driving wheel, the first driven wheel, and the second driven wheel are connected by a belt, and the two rollers can be driven simultaneously by a motor, thereby improving work efficiency. During the research and development process, different auxiliary materials can be added to the two rollers to shorten the research and development time, and the rotation speeds of the two rollers are the same, reducing the influence of variables on the experimental results.

[0018] In order to prevent the first driven wheel and the second driven wheel from slipping when one belt drives them at the same time, the utility model is provided with a first clamping wheel and a second clamping wheel at the bottom of the support box, which can clamp the belt between the driving wheel and the first driven wheel and the belt between the driving wheel and the second driven wheel, thereby increasing the friction force, preventing the slipping during the rotation process, and improving the transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings are only used to illustrate and explain the present invention, and are not intended to limit the scope of the present invention, wherein:

[0020] Figure 1 : Schematic diagram of the structure of the utility model;

[0021] Figure 2 : Figure 1 Enlarged view of part A in the middle;

[0022] Figure 3 : A schematic diagram of the structure of the utility model from another perspective;

[0023] Figure 4 : Schematic diagram of the meshing of gear and toothed belt;

[0024] Figure 5 : Schematic diagram of the setting position of the clamping wheel;

[0025] In the figure: 1. ladder frame; 2. support box; 3. fixed beam; 4. first roller; 5. second roller; 6. first fixed base; 7. second fixed base; 8. first flange; 9. second flange; 10. first rotating shaft; 11. second rotating shaft; 12. first driven wheel; 13. second driven wheel; 14. motor; 15. reducer; 16. driving wheel; 17. belt; 18. rotating shaft base; 19. first clamping wheel; 20. second clamping wheel; 21. gear; 22. toothed belt. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution, design method and advantages of the utility model clearer, the utility model is further described in detail through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] Example 1

[0028] like Figure 1 As shown, the utility model provides a laboratory double-drum granulator, comprising a ladder frame 1 and a support box 2 arranged on the ladder frame 1, wherein the support box 2 is arranged obliquely relative to the ladder frame 1; a first roller 4 and a second roller 5 are arranged side by side on one side of the support box 2, and the openings of the first roller 4 and the second roller 5 are arranged obliquely upward to prevent the material from spilling during the rolling granulation process. Figure 3As shown, a first rotating shaft 10 is arranged at the bottom of the first roller 4, and a second rotating shaft 11 is arranged at the bottom of the second roller 5. The first rotating shaft 10 is fixedly connected to the first roller 4, and the second rotating shaft 11 is fixedly connected to the second roller 5. The first rotating shaft 10 and the second rotating shaft 11 both pass through the support box 2; a plurality of ribs are arranged on the circumference of one end of the first rotating shaft 10 and the second rotating shaft 11 away from the support box 2, and the bottom of the ribs is connected to the bottom of the first roller 4 and / or the second roller 5 to increase the support strength of the rotating shaft to the roller. Two groups of rotating shaft bases 18 are arranged inside the support box 2, and the first rotating shaft 10 and the second rotating shaft 11 respectively pass through a group of rotating shaft bases 18 and are respectively rotatably connected to the rotating shaft bases 18. A first driven wheel 12 is provided at the end of the first rotating shaft 10 away from the first roller 4, and a second driven wheel 13 is provided at the end of the second rotating shaft 11 away from the second roller 5; a motor 14 is provided on the top of the support box 2, and a driving wheel 16 is provided at the output end of the motor 14. The driving wheel 16, the first driven wheel 12, and the second driven wheel 13 are connected by a belt 17. In order to ensure that the rotation speed of the driving wheel 16 meets the granulation requirement (for example: 16 rpm), in this embodiment, a reducer 15 is further provided between the motor 14 and the driving wheel 16, and the reducer 15 is axially connected to the motor 14 and the driving wheel 16 respectively.

[0029] like Figure 2 As shown in the above, a first fixed base 6 is provided on the top of both sides of the ladder frame 1, and a first flange 8 is provided on the top of the first fixed base 6; a second fixed base 7 is provided on both sides of the bottom of the support box 2, and a second flange 9 is provided at the bottom of the second fixed base 7; the first flange 8 and the second flange 9 are coaxially arranged and a fixed beam 3 is provided between the first flange 8 and the second flange 9, and the fixed beam 3 passes through two groups of the first flange 8 and the second flange 9.

[0030] In the granulation experiment, the main material is added to the first roller 4 and the second roller 5 respectively, and different amounts of auxiliary materials calculated in advance are added to the first roller 4 and the second roller 5, and the motor 14 is started. The motor 14 drives the first roller 4 and the second roller 5 to rotate at the same time. Since the same motor 14 is used to drive, the rotation speeds of the first roller 4 and the second roller 5 must be the same, and the influence of different rotation speeds on the experimental results is also eliminated during the experiment.

[0031] Example 2

[0032] On the basis of Embodiment 1, in order to avoid the belt 17 driving the first driven wheel 12 and the second driven wheel 13 to slip at the same time, in this embodiment, Figure 5As shown, a first clamping wheel 19 and a second clamping wheel 20 are provided at the bottom of the support box 2; the upper surface of the belt 17 between the driving wheel 16 and the first driven wheel 12 is abutted against the bottom of the first clamping wheel 19, and the upper surface of the belt 17 between the driving wheel 16 and the second driven wheel 13 is abutted against the bottom of the second clamping wheel 20, thereby increasing the friction between the driving wheel 16, the first driven wheel 12, the second driven wheel 13 and the belt 17, thereby improving the transmission efficiency.

[0033] Example 3

[0034] On the basis of Example 1, Figure 4 As shown, in order to further improve the transmission efficiency, the driving wheel 16 , the first driven wheel 12 , and the second driven wheel 13 of this embodiment are all gears 21 , and the belt 17 is a toothed belt 22 , which is meshed and connected with the gears 21 .

[0035] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A laboratory double-drum granulator, comprising a ladder frame (1) and a support box (2) arranged on the ladder frame (1), characterized in that: The support box (2) is arranged obliquely relative to the ladder frame (1); a first roller (4) and a second roller (5) are arranged side by side on one side of the support box (2); A first rotating shaft (10) is arranged at the bottom of the first roller (4), and a second rotating shaft (11) is arranged at the bottom of the second roller (5); the first rotating shaft (10) is fixedly connected to the first roller (4), and the second rotating shaft (11) is fixedly connected to the second roller (5); and both the first rotating shaft (10) and the second rotating shaft (11) pass through the supporting box (2); A first driven wheel (12) is disposed at one end of the first rotating shaft (10) away from the first roller (4), and a second driven wheel (13) is disposed at one end of the second rotating shaft (11) away from the second roller (5); A motor (14) is arranged on the top of the support box (2), a driving wheel (16) is arranged at the output end of the motor (14), and the driving wheel (16), the first driven wheel (12), and the second driven wheel (13) are connected by a belt (17).

2. A laboratory double-drum granulator according to claim 1, characterized in that: The tops of both sides of the ladder frame (1) are provided with first fixed bases (6), and the tops of the first fixed bases (6) are provided with first flanges (8); Second fixed bases (7) are arranged on both sides of the bottom of the support box (2), and a second flange (9) is arranged at the bottom of the second fixed base (7); The first flange (8) and the second flange (9) are coaxially arranged and a fixing beam (3) is arranged between the first flange (8) and the second flange (9), and the fixing beam (3) passes through two groups of the first flange (8) and the second flange (9).

3. A laboratory double-drum granulator according to claim 1, characterized in that: A first pressing wheel (19) and a second pressing wheel (20) are provided at the bottom of the support box (2); The upper surface of the belt (17) between the driving wheel (16) and the first driven wheel (12) abuts against the bottom of the first pressure wheel (19), and the upper surface of the belt (17) between the driving wheel (16) and the second driven wheel (13) abuts against the bottom of the second pressure wheel (20).

4. A laboratory double-drum granulator according to claim 1, characterized in that: The driving wheel (16), the first driven wheel (12) and the second driven wheel (13) are all gears (21), and the belt (17) is a toothed belt (22), which is meshingly connected with the gears (21).

5. A laboratory double-drum granulator according to claim 1, characterized in that: A plurality of ribs are provided on the circumference of one end of the first rotating shaft (10) and the second rotating shaft (11) away from the supporting box (2), and the bottom of the ribs is connected to the bottom of the first roller (4) and / or the second roller (5).

6. A laboratory double-drum granulator according to claim 5, characterized in that: A plurality of rotating shaft bases (18) are arranged inside the supporting box (2), and the first rotating shaft (10) and the second rotating shaft (11) respectively penetrate through the rotating shaft bases (18) and are rotatably connected to the rotating shaft bases (18).

7. A laboratory double-drum granulator according to claim 1, characterized in that: A reducer (15) is also provided between the motor (14) and the driving wheel (16), and the reducer (15) is axially connected to the motor (14) and the driving wheel (16) respectively.

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