A non-powered powder selection device

Abstract

The utility model relates to the technical field of powder screening, and discloses a non-powered powder selection device. The non-powered powder selection device comprises: a support rod, a limit frame fixedly installed above the support rod, an end plate fixedly installed on the upper end of the limit frame, a feed port inserted and installed above the end plate, a coarse material port fixedly installed at the lower end of the limit frame, a receiving block fixedly installed on the upper end of the limit frame, a sorting rod fixedly installed on the left side of the receiving block, the limit frame and the receiving groove are combined to form a rectangular tubular structure, and the discharge port is connected to the limit frame through a connecting pipe. This method can limit the dust generated by the powder when it collides with the sorting rod to the inside of the connecting pipe and the limit frame, and the exhaust motor can drive the fan blades to rotate when starting to discharge the gas inside the receiving groove, and the external gas will enter the limit frame through the coarse material port, and the airflow prevents the dust from spreading to the outside through the coarse material port.

Description

Technical Field

[0001] The utility model relates to the technical field of powder screening, in particular to a non-powered powder selection device. Background Art

[0002] Powder classifiers are widely used in coal mills, raw material intermediate drying mills and cement mill systems in new dry cement production lines. They can be divided into three categories: three-separation powder classifiers, centrifugal powder classifiers and cyclone powder classifiers. The core technologies of powder classifiers are: dispersion, classification and separation (collection). The earliest powder classifier was called a centrifugal powder classifier. It uses a spreading disc to disperse materials, airflow generated by the rotation of the fan blades inside the machine to classify materials, and gravity sedimentation of materials inside the machine to collect fine powder.

[0003] The existing referenceable Chinese utility model patent with announcement number CN217190950U discloses an airflow vertical rotation non-powered powder selection machine, including a bracket, a two-stage powder selection device is installed on the bracket, and each level of the powder selection device includes a box body, a feed port is provided at the top of the box body, a discharge port is provided at the bottom of the box body, an air suction port, an air inlet and an air supply port are provided at the upper part of the box body, a rotary air duct is provided on the box body to guide the air flow into the bottom of the box body in a tangential direction, the air inlet is connected to the rotary air duct, the air inlet and the air suction port are located on the same side of the feed port, a feed adjustment device is provided at the feed port, a material blocking device is provided at the lower part of the feed port in the box body, and a sand blocking device is provided at the air suction port in the box body. The utility model has uniform feeding distribution of powder selection, good powder sand separation effect, high powder selection efficiency, and controllable content of fine powder in sand.

[0004] The existing unpowered powder selection structure generally breaks up the powder cake output by the roller press by colliding the powder cake with the device to facilitate the screening of the powder. This method will generate dust when the powder cake collides with the device. At the same time, the powder in the existing unpowered powder selection device may accumulate and compact inside the device, affecting the powder passability of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a non-powered powder selection device, which has the advantages of avoiding dust diffusion and preventing powder from accumulating inside the device, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a non-powered powder selection device, comprising: a support rod, a limit frame is fixedly installed above the support rod, an end plate is fixedly installed on the upper end of the limit frame, a feeding port is inserted and installed above the end plate, a coarse material port is fixedly installed at the lower end of the limit frame, a receiving block is fixedly installed on the upper end of the limit frame, a sorting rod is fixedly installed on the left side of the receiving block, a connecting block is fixedly installed on the lower end of the sorting rod, a support block is fixedly installed at the lower end of the limit frame, a connecting pipe is fixedly installed below the limit frame, a discharge port is fixedly installed below the connecting pipe, a fixing frame is fixedly installed inside the discharge port, an exhaust motor is fixedly installed inside the fixing frame, a connecting column is fixedly installed below the rotating shaft of the exhaust motor, a fan blade is fixedly installed on the outer side of the connecting column, and a receiving groove is fixedly installed below the limit frame; the support rod can support the limit frame.

[0009] As the preferred technical solution of the utility model, the limit frame is a "concave" shaped structure, the limit frame is fixed to the upper end of the support rod in an inclined state, and the support rod is symmetrically installed on the left and right sides of the limit frame with the center of the limit frame as a reference; the limit frame can limit the position of the powder.

[0010] As the preferred technical solution of the utility model, the feed port vertically penetrates the end plate and is connected with the limit frame, the receiving block is fixedly installed at the upper end inside the limit frame, and the sorting rod is installed equidistantly on the left and right below the receiving block; the feed port can facilitate the powder to enter the limit frame.

[0011] As a preferred technical solution of the utility model, the connecting block is installed inside the limit frame at equal distances front and back and up and down, and the sorting rod is fixedly installed between the receiving block and the connecting block, between the connecting blocks, and between the connecting block and the supporting block; the connecting block is installed inside the limit frame in a stepped shape, which can facilitate the powder to hit the sorting rod.

[0012] As a preferred technical solution of the utility model, the discharge port is connected to the limit frame through a connecting pipe, and the exhaust motor is connected to the discharge port through a fixing frame; the connecting pipe can facilitate the connection between the discharge port and the limit frame.

[0013] As the preferred technical solution of the utility model, the connecting column is a regular octagonal prism structure, and the connecting column is fixedly connected to the rotating shaft of the exhaust motor by means of an interlaced installation. The fan blades are installed on the outside of the connecting column at an angle of forty-five degrees with the center of the connecting column as a reference; the connecting column can facilitate the exhaust motor to drive the fan blades to rotate.

[0014] As an optimal technical solution of the utility model, the upper end of the receiving groove is connected to the bottom end of the limit frame, the thickness of the upper end of the receiving groove is smaller than the lower end, and the inclination angle of the bottom surface of the receiving groove is greater than the inclination angle of the limit frame; the receiving groove can facilitate the discharge of qualified powder.

[0015] Compared with the prior art, the utility model provides a non-powered powder selection device, which has the following beneficial effects:

[0016] 1. The utility model sets a limit frame, which is a "concave" shaped structure. The limit frame is fixed to the upper end of the support rod in an inclined state, and the lower end of the limit frame is fixedly connected to the top of the receiving groove. The limit frame and the receiving groove are enclosed into a rectangular tubular structure, and the discharge port is connected to the limit frame through a connecting pipe. In this way, the dust generated when the powder collides with the sorting rod can be limited to the inside of the connecting pipe and the limit frame. At the same time, the exhaust motor can drive the fan blades to rotate when starting to discharge the gas inside the receiving groove. The external gas will enter the limit frame through the coarse material port, and the airflow prevents the dust from spreading to the outside through the coarse material port.

[0017] 2. The utility model arranges the connecting blocks, which are equidistant front and back and up and down in a stepped manner inside the limit frame. The sorting rods are fixedly installed between the receiving block and the connecting block, between the connecting blocks, and between the connecting block and the supporting block. After the material enters the limit frame, it will slide downward along the top surface of the connecting block under the action of gravity. When it slides to the lower end of the top surface of the connecting block, it will fall to the upper end of the sorting rod under the action of gravity and collide with the sorting rod. This method can prevent the material from accumulating above the sorting rod. The material that cannot pass through the sorting rod will slide downward under the guidance of the sorting rod to the top of the lower connecting block. At the same time, the elevation angle of the bottom surface of the receiving groove is greater than the elevation angle of the limit frame. After the powder is accumulated above the receiving groove, it will slide to the bottom end of the receiving groove due to the relatively small pressure and be discharged from the discharge port. This method can prevent the powder from accumulating inside the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the limit frame and the rough material opening of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the limit frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the discharge port of the utility model;

[0022] Among them: 1. Support rod; 11. Limit frame; 12. End plate; 13. Feed inlet; 14. Coarse material outlet; 15. Receiver block; 16. Sorting rod; 17. Connecting block; 18. Support block; 19. Connecting pipe; 110. Discharge outlet; 111. Fixed frame; 112. Exhaust motor; 113. Connecting column; 114. Fan blade; 115. Receiver groove. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4In this embodiment, a non-powered powder selection device includes: a support rod 1, a limit frame 11 is fixedly installed above the support rod 1, an end plate 12 is fixedly installed on the upper end of the limit frame 11, a feed port 13 is inserted and installed above the end plate 12, a coarse material port 14 is fixedly installed at the lower end of the limit frame 11, a receiving block 15 is fixedly installed at the upper end of the limit frame 11, a sorting rod 16 is fixedly installed on the left side of the receiving block 15, and a connecting block 17 is fixedly installed at the lower end of the sorting rod 16. 1 is fixedly installed with a support block 18 at the lower end, a connecting pipe 19 is fixedly installed below the limit frame 11, a discharge port 110 is fixedly installed below the connecting pipe 19, a fixing frame 111 is fixedly installed inside the discharge port 110, an exhaust motor 112 is fixedly installed inside the fixing frame 111, a connecting column 113 is fixedly installed below the rotating shaft of the exhaust motor 112, a fan blade 114 is fixedly installed on the outer side of the connecting column 113, and a receiving groove 115 is fixedly installed below the limit frame 11.

[0027] The limiting frame 11 is a "concave" shaped structure, and the limiting frame 11 is fixed to the upper end of the support rod 1 in an inclined state. The support rod 1 is symmetrically installed on the left and right sides of the limiting frame 11 with the center of the limiting frame 11 as a reference.

[0028] The feed port 13 vertically penetrates the end plate 12 and is connected with the limit frame 11 . The receiving block 15 is fixedly installed at the upper end of the limit frame 11 . The sorting rods 16 are equidistantly installed below the receiving block 15 .

[0029] The connecting blocks 17 are installed inside the limiting frame 11 equidistantly front and back and up and down. The sorting rods 16 are fixedly installed between the receiving blocks 15 and the connecting blocks 17 , between the connecting blocks 17 , and between the connecting blocks 17 and the supporting blocks 18 .

[0030] The discharge port 110 is connected to the limiting frame 11 through the connecting pipe 19 , and the exhaust motor 112 is connected to the discharge port 110 through the fixing frame 111 .

[0031] The connecting column 113 is a regular octagonal prism structure, and is fixedly connected to the shaft of the exhaust motor 112 by means of insertion installation. The fan blades 114 are installed on the outside of the connecting column 113 at a forty-five degree angle with the center of the connecting column 113 as a reference.

[0032] The upper end of the receiving groove 115 is connected to the bottom end of the limiting frame 11 , the thickness of the upper end of the receiving groove 115 is smaller than that of the lower end, and the elevation angle of the bottom surface of the receiving groove 115 is greater than the elevation angle of the limiting frame 11 .

[0033] Specifically, the support rod 1 can support the limit frame 11, the limit frame 11 can limit the position of the powder, the end plate 12 can close the upper end of the limit frame 11, the feed port 13 can facilitate the powder to enter the limit frame 11, the coarse material port 14 can discharge the particles that are too large, the receiving block 15 can facilitate the powder to slide downward, the sorting rod 16 can facilitate the powder to pass through, the connecting block 17 is installed in the limit frame 11 in a stepped shape, which can facilitate the powder to hit the sorting rod 16, the support block 18 can facilitate the particles to enter the coarse material port 14, the connecting pipe 19 can facilitate the discharge port 110 to be connected with the limit frame 11, the fixing frame 111 can limit the position of the exhaust motor 112, the connecting column 113 can facilitate the exhaust motor 112 to drive the fan blades 114 to rotate, and the receiving groove 115 can facilitate the discharge of qualified powder.

[0034] When in use, the limit frame 11 is a "concave" shaped structure. The limit frame 11 is fixed to the upper end of the support rod 1 in an inclined state, and the lower end of the limit frame 11 is fixedly connected to the top of the receiving groove 115. The limit frame 11 and the receiving groove 115 are enclosed in a rectangular tubular structure. At the same time, the discharge port 110 is connected to the limit frame 11 through the connecting pipe 19. This method can limit the dust generated by the powder when it collides with the sorting rod 16 to the connecting pipe 19 inside the limit frame 11. At the same time, the exhaust motor 112 can drive the fan blades 114 to rotate when starting to discharge the gas inside the receiving groove 115. The external gas will enter the limit frame 11 through the coarse material port 14, and the airflow will prevent the dust from spreading to the outside through the coarse material port 14. The connecting block 17 is installed in the interior of the limit frame 11 in a stepped manner with equal distances front and back and up and down. The sorting rod 16 is fixedly installed It is installed between the receiving block 15 and the connecting block 17, between the connecting blocks 17, and between the connecting block 17 and the supporting block 18. After the material enters the limit frame 11, it will slide downward along the top surface of the connecting block 17 under the action of gravity. When it slides to the lower end of the top surface of the connecting block 17, it will fall to the upper end of the sorting rod 16 under the action of gravity and collide with the sorting rod 16. This method can prevent the material from accumulating above the sorting rod 16. The material that cannot pass through the sorting rod 16 will slide downward under the guidance of the sorting rod 16 to the top of the lower connecting block 17. At the same time, the bottom surface elevation angle of the receiving groove 115 is greater than the elevation angle of the limit frame 11. After the powder is accumulated above the receiving groove 115, it will slide to the bottom end of the receiving groove 115 due to the relatively small pressure and be discharged from the discharge port 110. This method can prevent the powder from accumulating inside the device.

[0035] 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 non-powered powder selection device, characterized in that: include: A support rod (1), a limit frame (11) is fixedly installed above the support rod (1), an end plate (12) is fixedly installed on the upper end of the limit frame (11), a feed port (13) is inserted and installed above the end plate (12), a coarse material port (14) is fixedly installed on the lower end of the limit frame (11), a receiving block (15) is fixedly installed on the upper end of the limit frame (11), a sorting rod (16) is fixedly installed on the left side of the receiving block (15), a connecting block (17) is fixedly installed on the lower end of the sorting rod (16), and a A support block (18) is provided, a connecting pipe (19) is fixedly installed below the limit frame (11), a discharge port (110) is fixedly installed below the connecting pipe (19), a fixing frame (111) is fixedly installed inside the discharge port (110), an exhaust motor (112) is fixedly installed inside the fixing frame (111), a connecting column (113) is fixedly installed below the rotating shaft of the exhaust motor (112), a fan blade (114) is fixedly installed on the outer side of the connecting column (113), and a receiving groove (115) is fixedly installed below the limit frame (11).

2. The unpowered powder selection device according to claim 1 is characterized in that: The limit frame (11) is a "concave"-shaped structure; the limit frame (11) is fixed to the upper end of the support rod (1) in an inclined state; the support rod (1) is symmetrically mounted on the left and right sides of the limit frame (11) with the center of the limit frame (11) as a reference.

3. The unpowered powder selection device according to claim 1 is characterized in that: The feed port (13) vertically penetrates the end plate (12) and is connected to the limit frame (11); the receiving block (15) is fixedly mounted on the upper end of the limit frame (11); and the sorting rod (16) is equidistantly mounted on the left and right below the receiving block (15).

4. The unpowered powder selection device according to claim 1 is characterized in that: The connecting block (17) is installed inside the limiting frame (11) at equal distances front to back and top to bottom, and the sorting rod (16) is fixedly installed between the receiving block (15) and the connecting block (17), between the connecting blocks (17), and between the connecting block (17) and the supporting block (18).

5. The unpowered powder selection device according to claim 1 is characterized in that: The discharge port (110) is connected to the limiting frame (11) via a connecting pipe (19), and the exhaust motor (112) is connected to the discharge port (110) via a fixing frame (111).

6. The unpowered powder selection device according to claim 1, characterized in that: The connecting column (113) is a regular octagonal prism structure, and the connecting column (113) is fixedly connected to the rotating shaft of the exhaust motor (112) by means of an interlaced installation, and the fan blade (114) is installed on the outside of the connecting column (113) at an angle of forty-five degrees with the center of the connecting column (113) as a reference.

7. The unpowered powder selection device according to claim 1 is characterized in that: The upper end of the receiving groove (115) is connected to the bottom end of the limiting frame (11), the thickness of the upper end of the receiving groove (115) is smaller than that of the lower end, and the elevation angle of the bottom surface of the receiving groove (115) is greater than the elevation angle of the limiting frame (11).

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