阅读说明：本技术 耙叶装置 (Leaf raking device ) 是由 程长青 过利敏 于 2018-08-05 设计创作，主要内容包括：本发明耙叶装置包括导料板,摊料器,固定架；导料板和摊料器由固定架固定连接。摊料器包括导流板,支架；支架固定在导流板的导流板右后端和导流板左后端上。导料板的下端贴合在盘式干燥器的加热板上,摊料器的导流板的底端和加热板之间的间距高度等于待物料的厚度。通过固定架将耙叶装置固定连接在耙杆上,耙叶装置在耙杆带动下沿盘面回转,前边的为推料的导料板,使物料沿导料板切向和垂直方向移动,后边为摊料器,料堆的物料通过摊料器的导流板引导导流的作用下就均匀的覆盖在加热板上,加热板的有效加热面积>85%,提高了盘式干燥器正常效能的发挥。(The leaf raking device comprises a material guide plate, a material spreader and a fixing frame; the material guide plate and the material spreader are fixedly connected by a fixing frame. The spreader comprises a guide plate and a bracket; the bracket is fixed on the right rear end of the guide plate and the left rear end of the guide plate. The lower end of the guide plate is attached to a heating plate of the disc dryer, and the height of the distance between the bottom end of the guide plate of the material spreader and the heating plate is equal to the thickness of the material to be treated. The scraper blade device is fixedly connected to the scraper rods through the fixing frame, the scraper blade device rotates along the disc surface under the driving of the scraper rods, the guide plate for pushing materials is arranged in the front of the scraper blade device, the materials move along the tangential direction and the vertical direction of the guide plate, the material spreader is arranged behind the scraper blade device, the materials in the material pile are uniformly covered on the heating plate under the guiding and guiding effects of the guide plate of the material spreader, the effective heating area of the heating plate is more than 85%, and the normal performance of the disc dryer is improved.)

1. A leaf raking device comprises a material guide plate (1), a material spreader (2) and a fixing frame (3); the method is characterized in that: material guiding board (1)

And the spreader (2) is fixedly connected with the fixed frame (3); the material guide plate (1) is arranged in front of the material guide plate, the spreader (2) is arranged behind the right side of the material guide plate (1), and the corner head (6) of the guide plate (5) of the spreader (2) is opposite to the side edge (9) of the material guide plate (1);

the spreader (2) comprises a guide plate (5) and a bracket (11); the bracket (11) is fixed on the right rear end (7) of the guide plate and the left rear end (10) of the guide plate (5);

the distance length between the right rear end (7) of the guide plate and the left rear end (10) of the guide plate at the two ends of the guide plate (5) which is folded into a triangle shape is equal to the length of the guide plate (1);

the lower end (8) of the material guide plate (1) of the harrow blade device is attached to a heating plate of the disc dryer; the distance between the bottom end 4 of the guide plate (5) of the material spreader (2) and the heating plate is equal to the thickness of the material to be treated;

the harrow blade device is driven by a harrow rod to rotate along the disc surface of the heating plate, the front part is provided with a material guide plate (1) for pushing materials, so that the materials move along the tangential direction and the vertical direction of the material guide plate (1), the rear part is provided with a material spreader (2), and the material spreader (2) controls the diversion and spreading of the materials; the material of the material ring-shaped material pile is uniformly covered on the heating plate under the guiding and guiding action of the guide plate (5) of the material spreader (2).

2. The rake blade apparatus of claim 1, wherein: the material spreader (2) is arranged at the left side of the material guide plate (1) or at the right side of the material guide plate (1) according to the requirement of the internal rotation material guide or the external rotation material guide of the material guide plate (1).

3. The rake blade apparatus of claim 1, wherein: the height of the guide plate (5) of the spreader (2) is the same as that of the guide plate (1) or lower than that of the guide plate (1).

4. The rake blade apparatus of claim 1, wherein: the fixed frame (3) is 3-6 metal strips.

Technical Field

The invention relates to a rake blade of a disc dryer, in particular to a rake blade device of the disc dryer.

Background

The disk type dryer is a multi-layer disk, rotary rake stirring and vertical continuous drying device. Disc dryer and novel conductive drying technology published by chemical industry publisher 2015 3 months, 2.4.2 rake leaves published on pages 37 to 48 of this document: when the disc dryer works, a plurality of rake blades arranged on the rake rod rotate along the disc surface of the heating plate under the driving of the rake rod, the front side of the disc dryer is provided with a material pushing rake blade to enable materials to move along the tangential direction and the vertical direction of the rake blades, the rear side of the disc dryer is provided with a limiting rake blade to control the spreading area of the materials, and the limiting rake blade is also the material pushing rake blade of the next material ring. Each rake blade only pushes the materials in front of the rake blade to be stacked along the front face of the rake blade scraper according to the dynamic repose angle, and the material stack is in an asymmetric slope shape under the constraint of the two rake blade scrapers. In some cases, in order to avoid the situation that the high-water-content material is clamped between two rake blades and rotates along with the rake blades or in order to accelerate the moving speed of the material, the space between the rake blades or the length of a rake blade scraper is intentionally increased, so that the coverage area of a material ring is even smaller than the exposed area, the effective heating area of a heating plate is less than 50%, and the normal performance of the dryer is seriously influenced.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a leaf raking device. The scraper blade device causes the covering area of the material ring to be larger than the exposed area, the effective heating area of the heating plate is larger than 85 percent, and the normal performance of the disc dryer is improved.

The invention is realized by the following technical scheme: the leaf raking device comprises a material guide plate, a material spreader and a fixing frame.

The material guide plate, the material spreader and the fixing frame are made of metal plates or metal strips.

The guide plate is a metal plate, and the length and the width of the guide plate are the same as the size of the rake blades of the conventional disc dryer.

The spreader comprises a guide plate and a bracket.

The height of the guide plate of the spreader is the same as that of the guide plate, or is lower than that of the guide plate; the height of the guide plate can be flexibly selected according to the requirement.

And (3) folding the middle position of the guide plate backwards by using sheet metal processing equipment, wherein the folded guide plate is triangular in appearance.

The appearance shape of the guide plate is a triangle isosceles shape, and the lengths of the guide plates on two sides of the triangle isosceles shape are the same.

The length of the distance between the right rear end of the guide plate and the left rear end of the guide plate at the two ends of the guide plate which is folded backwards and is triangular is equal to the length of the guide plate.

The support is fixed on the right rear end of the guide plate and the left rear end of the guide plate, and the support plays a role in supporting and fixing the guide plate, so that the deformation of the guide plate is avoided.

The material guide plate and the material spreader are fixedly connected by a fixing frame.

The spreader is arranged at the left side position of the material guide plate or at the right side position of the material guide plate according to the requirement of the internal rotation material guide or the external rotation material guide of the material guide plate.

The material guide plate is arranged in front of the material guide plate, the material spreader is arranged behind the right side of the material guide plate, and the corner of the guide plate of the folded material spreader faces the side of the material guide plate.

The fixing frame is 3-6 metal strips.

2-3 metal strips in the fixing frame play a role in fixedly connecting the material guide plate and the material spreader, and the rake blade device is fixedly connected to the rake rod through 2-3 metal strips in the fixing frame.

The lower end of the material guide plate is attached to a heating plate of the disc dryer.

The bottom end of a guide plate of a material spreader of the leaf raking device is higher than the lower end of a guide plate, and the distance between the bottom end of the guide plate of the material spreader and a heating plate is equal to the thickness of a material to be treated.

The blade device is used and installed the same as the blades on a conventional disc dryer, and the fixing frame of the blade device is installed and fixed on the blade manufacturing rod.

When the disc dryer works:

the scraper blade devices are driven by the scraper rods to rotate along the disc surface of the heating plate, the front side of the scraper blade devices is provided with a material guide plate for pushing materials, the materials move along the tangential direction and the vertical direction of the material guide plate, and the rear side of the scraper blade devices is provided with a material spreader for controlling the paving area of the materials.

And secondly, the guide plate pushes the materials in front of the guide plate, and the pushed materials are gathered into an asymmetrical material ring-shaped material pile along the side edge of the guide plate under the guiding and guiding effects of the guide plate.

Thirdly, the materials are gathered at the side edge of the guide plate to form an asymmetric material pile and are spread by the flow divider of the material spreader, the materials lower than the space between the bottom end of the guide plate and the heating plate move through the bottom end of the guide plate, and the materials higher than the bottom end of the guide plate cannot move through the bottom end of the guide plate.

And fourthly, under the action of the guiding and guiding action of the guide plate, the material higher than the bottom end of the guide plate moves towards the rear end of the guide plate, the material higher than the bottom end of the guide plate sequentially settles down in the moving process, and the material which is settled down in the space between the bottom end of the guide plate and the heating plate moves through the bottom end of the guide plate.

Fifthly, the materials of the annular material pile uniformly cover the heating plate under the guiding and guiding effects of the guide plate of the material spreader, the effective heating area of the heating plate is more than 85%, and the normal performance of the disc dryer is improved.

Compared with the harrow blade of the existing disc type dryer, the invention has the following beneficial effects: the leaf raking device comprises a material guide plate, a material spreader and a fixing frame; the material guide plate and the material spreader are connected and fixed by a fixing frame; the guide plate is in front of the material distributor, the spreader is behind the guide plate, and the corner of the guide plate of the spreader is required to be opposite to the side of the guide plate. The fixing frame of the harrow blade device is arranged on a harrow making rod. The harrow blade device is driven by a harrow rod to rotate along the disc surface, the front part is provided with a material guide plate for pushing materials, so that the materials move along the tangential direction and the vertical direction of the material guide plate, and the rear part is provided with a material spreader for controlling the paving area of the materials. The material of the material pile is uniformly covered on the heating plate under the action of guiding and guiding flow by the guide plate of the material spreader, the effective heating area of the heating plate is more than 85 percent, and the normal performance of the disc dryer is improved.

Description of the drawings:

fig. 1 is a schematic structural view of a blade raking device of the present invention;

fig. 2 is a schematic structural diagram of a spreader of the leaf raking device of the present invention.

In the figure: 1. guide plate, 2, spreading device, 3, mount, 4, bottom, 5, guide plate, 6, corner, 7, right rear end, 8, lower extreme, 9, side, 10, left rear end, 11, support.

The specific implementation mode is as follows:

the invention is further described below with reference to the accompanying drawings and examples.