Feeding device of powder concentrator

Abstract

The utility model discloses a feeding device of a powder concentrator, which relates to the field of coal ash feeding and comprises a feeding cylinder, a sealing box is fixedly connected to the upper end of the feeding cylinder, a bridge frame is arranged at the upper end of the sealing box, a throwing disc device is arranged on the bridge frame and comprises a main shaft, and the main shaft is rotatably connected to the bridge frame and coincides with the central axis of the feeding cylinder. The upper end of the main shaft is connected with a driving motor, the lower end of the main shaft is fixedly connected with a material throwing disc, the material throwing disc is located below the feeding cylinder, the inner wall of the feeding cylinder is rotatably connected with disturbance disc devices which are uniformly distributed up and down, the outer side of the feeding cylinder is rotatably connected with driving shaft devices which are circumferentially distributed, and the driving shaft devices and the disturbance disc devices are correspondingly arranged and are in transmission connection; according to the device, each driving shaft device independently drives the corresponding disturbance disc device to rotate, the rotating directions of the upper and lower adjacent disturbance disc devices are opposite, the circumferential rotating speed of powder is reduced while the powder is uniformly disturbed, it is guaranteed that the powder uniformly falls on the throwing disc, and the powder throwing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of fly ash feeding, and particularly relates to a powder concentrator feeding device. BACKGROUND

[0002] Fly ash is the suspended combustion of coal powder in the furnace, and most of the combustible materials are burned out in the furnace, while the incombustible materials are mixed in the high-temperature flue gas. These incombustible materials are partially melted due to high-temperature action, forming a large number of fine spherical particles, which are separated and collected by a dust collector to become fly ash. Fly ash selection is an important link in the fly ash processing process. After the fly ash is ground into uneven particles in the mill, it is sent to the powder concentrator for separation, and the larger particles are separated out and returned to the mill for grinding.

[0003] A powder concentrator feeding device disclosed in Chinese Patent No. CN202023284438.7 includes a machine body, a rotating disc, a rotating shaft, a bracket, a motor, a feeding piece, an inlet pipe, and a plurality of partitions. The inlet pipe includes an inner pipe and an outer pipe, and the plurality of partitions are fixed between the inner pipe and the outer pipe along the length direction and separate the inner pipe and the outer pipe into a plurality of feeding channels. The two ends of the inner pipe are closed, one end of the feeding piece is connected with the powder to be screened, and the other end is connected with the outer pipe. The inlet pipe is coaxially inserted into the top wall of the machine body along the vertical direction, the motor is arranged in the inner pipe, the end of the motor away from the output shaft is arranged on the top wall of the machine body through the bracket, and the end of the bracket away from the motor is arranged outside the outer pipe of the machine body through the feeding piece. One end of the rotating shaft is coaxially arranged on the output shaft of the motor, and the other end is coaxially inserted into the machine body along the inner pipe and arranged through the end wall of the inner pipe. The rotating disc is coaxially arranged on the end of the rotating shaft extending out of the inner pipe, which can make the powder more uniformly thrown out and improve the working efficiency of the powder concentrator. The above-mentioned device has a problem: the partitions, the inner pipe, the outer pipe, and the rotating disc rotate synchronously and at the same speed, the powder is given a circumferential speed close to that of the rotating disc when passing through the inlet pipe, and the powder is concentrated on the connection between the inner wall of the outer pipe and the partition due to centrifugal force when in the inlet pipe. When the powder leaves the inlet pipe, a part of it will be directly thrown out from the throwing net, reducing the contact degree between the powder and the rotating disc and the uniformity of the powder falling on the rotating disc, and affecting the throwing effect of the powder. TECHNICAL SOLUTION

[0004] To solve the problems in the above background, the utility model provides a powder concentrator feeding device, which sets a new type of dispersing device to disperse the powder more uniformly during falling, uniformly falls on the throwing device, and improves the throwing effect of the powder.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows:

[0006] A feed device for a classifier includes a feed cylinder, a sealed box fixedly connected to the upper end of the feed cylinder, a feed port on the sealed box, a bridge frame on the upper end of the sealed box, and a throwing disc device on the bridge frame. The throwing disc device includes a main shaft, which is rotatably connected to the bridge frame and coincides with the central axis of the feed cylinder. A drive motor is connected to the upper end of the main shaft, and a throwing disc is fixedly connected to the lower end of the main shaft. The throwing disc is located below the feed cylinder. A disturbance disc device evenly distributed vertically is rotatably connected to the inner wall of the feed cylinder. A circumferentially distributed drive shaft device is rotatably connected to the outer side of the feed cylinder. The drive shaft device and the disturbance disc device are correspondingly arranged and connected in transmission.

[0007] As a further feature of the above scheme, the inner wall of the feed cylinder is provided with evenly distributed rotating annular grooves, each rotating annular groove having a through-outward opening, an upper mounting ring is provided on the outer side of the upper end of the feed cylinder, and a lower mounting ring is provided on the outer side of the lower end of the feed cylinder.

[0008] As a further feature of the above scheme, the upper surface of the throwing disc has an upward-opening conical groove, and the outer edge of the upper surface of the throwing disc is provided with vertically upward-distributed circumferential interference columns.

[0009] As a further provision of the above solution, the drive shaft device includes a drive shaft, which is vertically rotatably connected between the upper mounting ring and the lower mounting ring. A gear is fixedly connected to the drive shaft, and a micro motor is connected to the upper end of the drive shaft.

[0010] As a further provision of the above scheme, the disturbance disk device includes a central bushing, a slip ring coaxial with the central axis is provided on the outside of the central bushing, and spokes distributed in a circle are provided between the central bushing and the slip ring. The slip ring has teeth on its outer cylindrical surface, which mesh with gears. The slip ring is rotatably connected in a rotating ring groove, and the central bushing is rotatably connected to the main shaft.

[0011] This utility model has the following beneficial effects:

[0012] 1. Multiple agitator devices are rotatably connected inside the feed cylinder. Each drive shaft device independently drives the rotation of the corresponding agitator device. The rotation directions of adjacent agitator devices are opposite, which agitates the powder evenly while reducing the circumferential rotation speed of the powder. This prevents the material from concentrating locally when it enters the feed cylinder, ensuring that the powder falls evenly on the throwing disc and improving the powder dispersion effect.

[0013] 2. The main shaft drives the throwing disc to rotate, and the powder is thrown obliquely upward on the conical groove and collides with the interference column, further improving the uniformity of powder dispersion. Attached Figure Description

[0014] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the appearance of this utility model;

[0016] Figure 3 This is a schematic diagram of the feed cylinder of this utility model;

[0017] Figure 4 This is an assembly diagram of the drive shaft device and the disturbance disc device of this utility model;

[0018] Figure 5 This is a schematic diagram of the disturbance disk device of this utility model.

[0019] 1. Feed cylinder; 2. Sealed box; 3. Bridge frame; 4. Throwing disc device; 5. Drive motor; 6. Drive shaft device; 7. Interference column; 8. Disturbing disc device; 101. Rotating ring groove; 102. Opening; 103. Upper mounting ring; 104. Lower mounting ring; 201. Feed port; 401. Main shaft; 402. Throwing disc; 403. Conical groove; 601. Drive shaft; 602. Gear; 603. Micro motor; 801. Central bushing; 802. Slip ring; 803. Gear teeth; 804. Spokes. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-5 This application will be described in detail with reference to the embodiments.

[0022] like Figure 1 , Figure 2 As shown, a powder classifier feeding device includes a sealing box 2 fixedly connected to the upper end of a feeding cylinder 1. The sealing box 2 has a feeding port 201. A bridge frame 3 is provided at the upper end of the sealing box 2. A throwing disc device 4 is provided on the bridge frame 3. The throwing disc device 4 includes a main shaft 401, which is rotatably connected to the bridge frame 3 and coincides with the central axis of the feeding cylinder 1. A drive motor 5 is connected to the upper end of the main shaft 401, and a throwing disc 402 is fixedly connected to the lower end of the main shaft 401. The throwing disc 402 is located below the feeding cylinder 1. A disturbance disc device 8 is rotatably connected to the inner wall of the feeding cylinder 1 and is evenly distributed vertically. A drive shaft device 6 is rotatably connected to the outer side of the feeding cylinder 1 and is circumferentially distributed. The drive shaft device 6 and the disturbance disc device 8 are correspondingly arranged and connected in transmission.

[0023] As Figure 3 shown, the inner wall of the feeding cylinder 1 is provided with uniformly distributed rotating ring grooves 101, each rotating ring groove 101 is provided with a through outward opening 102, the upper end of the feeding cylinder 1 is provided with an upper mounting ring 103, and the lower end of the feeding cylinder 1 is provided with a lower mounting ring 104.

[0024] As Figure 1 , Figure 4 shown, the upper end surface of the throwing disc 402 is provided with upwardly opening tapered grooves 403, the outer edge of the upper end surface of the throwing disc 402 is provided with vertically upwardly distributed interference columns 7, the driving shaft device 6 comprises a driving shaft 601, the driving shaft 601 is vertically rotatably connected between the upper mounting ring 103 and the lower mounting ring 104, the driving shaft 601 is fixedly connected with a gear 602, the gear 602 is located in the opening 102, and the upper end of the driving shaft 601 is connected with a micro motor 603.

[0025] As Figure 5 shown, the disturbance disc device 8 comprises a central shaft sleeve 801, the outer side of the central shaft sleeve 801 is provided with a sliding ring 802 coaxial with the central axis, a plurality of radially distributed spokes 804 are arranged between the central shaft sleeve 801 and the sliding ring 802, a plurality of gear teeth 803 are arranged on the outer cylindrical surface of the sliding ring 802, the gear teeth 803 are in meshing connection with the gear 602, the sliding ring 802 is rotatably connected in the rotating ring groove 101, and the central shaft sleeve 801 is rotatably connected with the main shaft 401.

[0026] The working process of the utility model is as follows: powder is added into the sealing box 2 through the feeding opening 201, the powder falls under the action of gravity after entering the feeding cylinder 1, the micro motor 603 is started to drive the driving shaft 601 to rotate, the driving shaft 601 drives the gear 602 to rotate, the gear 602 drives the disturbance disc device 8 to rotate through the gear teeth 803, each driving shaft device 6 independently drives the corresponding disturbance disc device 8 to rotate, the rotation directions of the upper and lower adjacent disturbance disc devices 8 are opposite, the spokes 804 uniformly disturb the powder, so that the powder is uniformly fallen on the throwing disc 402, the driving motor 5 drives the main shaft 401 to rotate, drives the throwing disc 402 to rotate, the powder is thrown and scattered on the tapered grooves 403 and collides with the interference columns 7, and the throwing and scattering effect of the powder is further improved.

[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0028] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A powder selecting machine feeding device, comprising a feeding cylinder, a sealing box fixedly connected to the upper end of the feeding cylinder, and a feeding opening arranged on the sealing box, characterized in that, The upper end of the sealing box is provided with a bridge, and the bridge is provided with a material throwing disc device, the material throwing disc device comprises a main shaft, the main shaft is rotationally connected to the bridge and coincides with the center axis of the feeding cylinder, the upper end of the main shaft is connected with a driving motor, the lower end of the main shaft is fixedly connected with a material throwing disc, the material throwing disc is located below the feeding cylinder, the inner wall of the feeding cylinder is rotationally connected with uniformly distributed disturbance disc devices, and the outer side of the feeding cylinder is rotationally connected with circumferentially distributed driving shaft devices, the driving shaft devices are correspondingly arranged and drivingly connected with the disturbance disc devices.

2. The feeder of claim 1, wherein Uniformly distributed rotating ring grooves are formed in the inner wall of the feeding cylinder, each rotating ring groove is provided with an outwardly penetrating opening, the upper end of the feeding cylinder is provided with an upper mounting ring, and the lower end of the feeding cylinder is provided with a lower mounting ring.

3. The feeder of claim 1, wherein A conical groove with an upward opening is formed in the upper end surface of the material throwing disc, and the outer edge of the upper end surface of the material throwing disc is provided with circumferentially distributed interference columns vertically upward.

4. The feeder of claim 2, wherein The driving shaft device comprises a driving shaft, the driving shaft is vertically rotationally connected between the upper mounting ring and the lower mounting ring, the driving shaft is fixedly connected with a gear, and the upper end of the driving shaft is connected with a micro motor.

5. The feeder assembly of claim 4, wherein, The disturbance disc device comprises a central shaft sleeve, the outer side of the central shaft sleeve is provided with a slip ring coaxial with the central axis, circumferentially distributed spokes are arranged between the central shaft sleeve and the slip ring, the outer cylindrical surface of the slip ring is provided with a gear tooth, the gear tooth is meshingly connected with the gear, the slip ring is rotationally connected in the rotating ring groove, and the central shaft sleeve is rotationally connected with the main shaft.

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