Wall scraping device of drying machine

Abstract

The utility model discloses a wall scraping device of a drying machine, and relates to the technical field of conical vacuum drying machines. The cleaning and scraping device is arranged in an inner cavity of a conical drying machine body, a heating jacket is arranged outside the conical drying machine body, a stirring shaft is arranged in the middle of the interior of the conical drying machine body, gradient spiral blades are arranged on the stirring shaft, the cleaning and scraping device comprises at least one set of cleaning and scraping assembly arranged on the stirring shaft, and each set of cleaning and scraping assembly comprises two connecting rods and a scraper. The outer wall of the stirring shaft is fixedly connected with a connecting rod, the end of the connecting rod is movably connected with a scraper attached to the inner wall of the conical drying machine body, a gap is reserved between the gradual change type spiral blade and the inner wall of the conical drying machine body, and the scraper is located in the gap. According to the wall scraping device of the drying machine, by arranging the scraping assembly, the inner wall of the drying machine can be scraped in the material drying process of the drying machine, so that material attachment is avoided, material discharging is facilitated, and a scraper on the scraping device can be stably attached to the inner wall of the drying machine.

Description

Technical Field

[0001] The utility model relates to the technical field of conical vacuum dryers, in particular to a wall scraping device for a dryer. Background Art

[0002] Conical vacuum dryer is a multifunctional fully enclosed vertical vacuum drying equipment integrating drying, crushing and mixing. It is mainly used for powder drying in the pharmaceutical, chemical, pesticide, food and other industries. It realizes closed continuous operation throughout the whole process. It adopts intermittent working mode. When the wet material flows into the silo from the feed bin, it will be heated by the jacket of the cylinder wall and the internal of the propeller to achieve the best drying effect.

[0003] During the use of the existing conical vacuum dryer, the material is easily attached to the cylinder wall of the dryer after being dried, and is not easy to fall off. When the material is discharged, the material on the inner wall of the dryer shell cannot be discharged quickly, resulting in a waste of resources. Utility Model Content

[0004] The utility model provides a wall scraping device for a dryer to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dryer wall scraping device, which is arranged in the inner cavity of a conical dryer body, a heating jacket is arranged outside the conical dryer body, a stirring shaft driven by a reduction motor is arranged in the middle of the conical dryer body, and a gradual-change spiral blade is arranged on the stirring shaft, comprising: at least one group of cleaning and scraping components arranged on the stirring shaft, each group of cleaning and scraping components includes two connecting rods and a scraper, the outer wall of the stirring shaft is fixedly connected to the connecting rod, and the end of the connecting rod is movably connected to the scraper that fits the inner wall of the conical dryer body, a gap is left between the gradual-change spiral blade and the inner wall of the conical dryer body, and the scraper is located in the gap between the gradual-change spiral blade and the conical dryer body.

[0006] Furthermore, the end of the connecting rod is fixedly connected to a connecting frame, the connecting frame is U-shaped, the inner cavity of the connecting frame is rotatably connected to a swing rod, the scraper is fixedly connected to the swing rod, and an elastic reset mechanism is provided between the swing rod and the connecting frame.

[0007] Furthermore, the elastic reset mechanism includes a first ear block, a second ear block and a spring, the first ear block is fixedly provided on both sides of the connecting frame, the second ear block is fixedly connected on both sides of the swing rod, and a spring is installed between the first ear block and the second ear block.

[0008] Furthermore, the scraping components are provided in two groups.

[0009] Furthermore, a filter screen is provided at the bottom of the inner cavity of the conical dryer body above its discharge port.

[0010] Furthermore, a T-shaped cleaning plate cooperating with the filter screen is fixedly connected to the connecting rod connected to the lower end of the stirring shaft.

[0011] Compared with the prior art, the utility model provides a dryer wall scraping device, which has the following beneficial effects: the dryer wall scraping device, by setting a scraping component, can scrape the inner wall of the dryer during the process of the dryer drying materials, so as to avoid the adhesion of materials and facilitate discharge, and the scraper on the scraping device can stably fit on the inner wall of the dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the planar structure of the scraper of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the scraper of the utility model.

[0015] In the figure: 1. conical dryer body; 2. heating jacket; 3. stirring shaft; 4. gradual spiral blade; 5. connecting rod; 6. scraper; 7. connecting frame; 8. swing rod; 9. first ear block; 10. second ear block; 11. spring; 12. filter screen; 13. cleaning plate. Implementation

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model discloses a dryer wall scraping device, which is arranged in the inner cavity of a conical dryer body 1. A heating jacket 2 is arranged outside the conical dryer body 1. A stirring shaft 3 driven by a reduction motor is arranged in the middle of the conical dryer body 1. A gradual-change spiral blade 4 is arranged on the stirring shaft 3, comprising: at least one group of scraping components arranged on the stirring shaft 3, each group of scraping components comprising two connecting rods 5 and a scraper 6, the outer wall of the stirring shaft 3 is fixedly connected with the connecting rod 5, the end of the connecting rod 5 is movably connected with the scraper 6 which is in contact with the inner wall of the conical dryer body 1, a gap is left between the gradual-change spiral blade 4 and the inner wall of the conical dryer body 1, and the scraper 6 is located in the gap between the gradual-change spiral blade 4 and the conical dryer body 1.

[0018] The conical dryer body 1 is provided with corresponding feed inlets, discharge outlets, vacuum outlets, etc.

[0019] The scraping components are provided in two groups.

[0020] Specifically, the end of the connecting rod 5 is fixedly connected to a connecting frame 7, the connecting frame 7 is U-shaped, the inner cavity of the connecting frame 7 is rotatably connected to a swing rod 8, the scraper 6 is fixedly connected to the swing rod 8, and an elastic reset mechanism is provided between the swing rod 8 and the connecting frame 7.

[0021] The elastic reset mechanism includes a first ear block 9, a second ear block 10 and a spring 11. The first ear block 9 is fixedly provided on both sides of the connecting frame 7, the second ear block 10 is fixedly connected on both sides of the swing rod 8, and a spring 11 is installed between the first ear block 9 and the second ear block 10.

[0022] In this embodiment, the scraper 6 is attached to the inner wall of the conical dryer body 1 and can scrape off the attached materials.

[0023] The cooperation of the connecting frame 7 and the swing rod 8 can enable the scraper 6 to move, and the setting of the spring 11 can reset the scraper 6 after the movement. When the scraper 6 encounters an obstacle during the scraping process, it can perform corresponding activities to avoid it, and it can also ensure that the scraper 6 is firmly attached to the conical dryer body 1.

[0024] Specifically, a filter screen 12 is provided at the bottom of the inner cavity of the conical dryer body 1 above the discharge port thereof.

[0025] In this embodiment, the filter screen 12 is a sintered screen having high mechanical strength and an overall rigid structure, and can filter the dried material to screen materials of corresponding particle sizes.

[0026] Of course, the filter screen 12 can also be a filtering structure such as a polytetrafluoroethylene perforated plate.

[0027] Specifically, a T-shaped cleaning plate 13 matched with the filter screen 12 is fixedly connected to the connecting rod 5 connected to the lower end of the stirring shaft 3 .

[0028] In this embodiment, the cleaning plate 13 may also be disposed at the bottom end of the stirring shaft 3 .

[0029] The cleaning plate 13 can clean the surface of the filter screen 12 during the movement of the stirring shaft 3 to avoid clogging of the filter screen 12 and agglomeration of materials on the filter screen 12 .

[0030] In summary, the dryer wall scraping device, by setting a scraping component, can scrape the inner wall of the dryer during the process of drying materials in the dryer to avoid material adhesion and facilitate material discharge, and the scraper 6 on the scraping device can stably fit on the inner wall of the dryer.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dryer scraper device, arranged in the inner cavity of a conical dryer body (1), the conical dryer body (1) is provided with a heating jacket (2) outside, the conical dryer body (1) is provided with a stirring shaft (3) driven by a reduction motor in the middle, the stirring shaft (3) is provided with a gradual spiral blade (4), characterized in that: include: At least one set of scraping components is arranged on the stirring shaft (3), each set of scraping components comprises two connecting rods (5) and a scraper (6), the outer wall of the stirring shaft (3) is fixedly connected to the connecting rod (5), the end of the connecting rod (5) is movably connected to the scraper (6) which is in contact with the inner wall of the conical dryer body (1), a gap is left between the gradual spiral blade (4) and the inner wall of the conical dryer body (1), and the scraper (6) is located in the gap between the gradual spiral blade (4) and the conical dryer body (1).

2. A dryer scraper device according to claim 1, characterized in that: The end of the connecting rod (5) is fixedly connected to a connecting frame (7), the connecting frame (7) is U-shaped, the inner cavity of the connecting frame (7) is rotatably connected to a swing rod (8), the scraper (6) is fixedly connected to the swing rod (8), and an elastic reset mechanism is provided between the swing rod (8) and the connecting frame (7).

3. A dryer wall scraping device according to claim 2, characterized in that: The elastic reset mechanism comprises a first ear block (9), a second ear block (10) and a spring (11); the first ear block (9) is fixedly provided on both sides of the connecting frame (7); the second ear block (10) is fixedly connected to both sides of the swing rod (8); and a spring (11) is installed between the first ear block (9) and the second ear block (10).

4. A dryer scraping device according to claim 1, characterized in that: The scraping components are provided in two groups.

5. A dryer scraping device according to claim 1, characterized in that: A filter screen (12) is provided at the bottom of the inner cavity of the conical dryer body (1) above its discharge port.

6. A dryer wall scraping device according to claim 5, characterized in that: A T-shaped cleaning plate (13) that cooperates with the filter screen (12) is fixedly connected to a connecting rod (5) connected to the lower end of the stirring shaft (3).

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