CN219468865U - Disc rotary feeder - Google Patents

Abstract

The utility model provides a disc rotary feeder which comprises a cavity, wherein the upper end and the lower end of the cavity are respectively and hermetically connected with a top plate and a bottom plate, the bottom end of the bottom plate is hermetically connected with a bearing box body, the top end of the bearing box body is arranged in parallel with the top end of the bottom plate, a rotating shaft is arranged in the bearing box body, the top end of the rotating shaft vertically penetrates through the cavity and the top plate, a stirrer is arranged on the top side of the top plate, a rotor is arranged in the cavity and is in transmission connection with the rotating shaft, one side of the cavity is provided with a balance air inlet which is communicated with the inside of the cavity, one side of the bottom plate is connected with a discharging pipe, one end of the discharging pipe is communicated with the inside of the cavity, and the other end of the discharging pipe is connected with an outlet dome valve. According to the disc rotary feeder, the feeding amount is determined according to the chamber volume of the cavity, the rotation speed of the speed reducing motor is regulated to control the feeding amount, the frequency conversion speed regulation is continuous and quantitative feeding is achieved, and the feeding amount can be automatically regulated on line.

Description

Disc rotary feeder

Technical Field

The utility model relates to a disc rotary feeder which is mainly suitable for high-precision pulverized coal injection, quantitative conveying of dust removal ash with the particle size smaller than 10mm, pneumatic conveying with large conveying capacity and the like.

Background

Coal dust injection is mostly applied to the coal chemical industry such as: the metering conveying, fuming furnace, reducing furnace and side blowing furnace are mainly characterized by that the air and powdered coal are quantitatively blown into the slag of furnace to make combustion so as to make the slag retain high temperature for a long period of time. Quantitative conveying of fly ash is commonly used in the steel industry such as: the fly ash produced by sintering, fly ash produced by a blast furnace production process and quicklime powder produced by a lime kiln is mainly conveyed into a concentrated ash bin of a material yard of a sintering plant and the like through compressed air and quantitative fly ash by quantitative control.

The traditional pneumatic conveying pump cannot realize high-precision quantitative control conveying, is low in conveying capacity, high in maintenance difficulty, cannot guarantee smooth and fluctuation-free conveying system, cannot guarantee stable and reliable conveying of materials in a pipeline, is not blocked, and cannot adjust the conveying capacity by controlling feeding capacity, and the original conveying form system is complex in structure, can control the conveying capacity only through a single weighing module assembly, is low in precision, unstable in conveying, multiple in control point position, complex in operation and high in failure rate, and needs to use multiple devices in series or parallel.

Disclosure of Invention

In order to overcome the defects that the existing pneumatic conveying pump cannot realize high-precision quantitative control conveying, is low in conveying quantity, is difficult to maintain, cannot ensure smooth and fluctuation-free conveying system, cannot ensure stable and reliable conveying of materials in a pipeline, cannot block pipes, and cannot regulate the conveying quantity by controlling the feeding quantity. The utility model provides a disc rotary feeder, which is realized by the following specific technical means:

the utility model provides a rotary disk feeder, includes the cavity, the upper and lower both ends of cavity are sealing connection respectively has roof and bottom plate, the bottom sealing connection of bottom plate has the bearing box, the top of bearing box and the top of bottom plate are level mutually and are set up, the internally mounted of bearing box has the pivot, just the top of pivot is vertical to pass cavity and roof to install the agitator in the topside of roof, the internally mounted of cavity has the rotor, just the rotor is connected with the pivot transmission, one side of cavity is equipped with balanced air inlet, just balanced air inlet communicates with each other with the cavity inside, bottom one side of bottom plate is connected with the discharging pipe, the one end and the cavity inside of discharging pipe communicate with each other, and the other end is connected with export dome valve.

Further, the top plate and the bottom plate are fixedly connected with the cavity through fasteners, and O-shaped sealing rings are arranged on the connecting surfaces of the top plate and the bottom plate and the cavity.

Furthermore, a fluororubber sealing ring is arranged at the contact area between the center of the rotor and the bearing box body.

Further, the bottom end of the bearing box body is connected with a gear motor through a fastener, and the gear motor is in transmission connection with the rotating shaft.

Further, one side of the discharging pipe is provided with a purging port.

Further, an opening is formed in one side of the top plate, and the opening is communicated with the inside of the cavity.

Further, a fixed sleeve is arranged at the center of the stirrer and is fixedly connected with the rotating shaft through a fastener.

Compared with the prior art, the utility model has the following beneficial effects:

according to the disc rotary feeder, the feeding amount is determined according to the chamber volume of the cavity, the rotation speed of a reducing motor is regulated to control the feeding amount, the frequency conversion speed regulation is continuous and quantitative feeding is realized, and the on-line automatic adjustment of the feeding amount can be realized; the disc rotary feeder disclosed by the utility model can ensure smooth and non-fluctuation conveying through feeding quantity control, ensures stable and reliable conveying of materials in a pipeline, does not block the pipeline, has a simple system structure, high precision, stable conveying, fewer control points, simple operation and low failure rate, and can be installed on a conveying pump body according to space conditions.

Drawings

FIG. 1 is a schematic view of the internal structure of a rotary disk feeder according to the present utility model.

FIG. 2 is a schematic view of section A-A of FIG. 1.

FIG. 3 is a schematic view of section B-B of FIG. 1.

Fig. 4 is a schematic view in the direction C in fig. 1.

In the figure, the correspondence between the component names and the drawing numbers is:

1. a cavity; 2. a bottom plate; 3. a top plate; 4. an O-shaped sealing ring; 5. a speed reducing motor; 6. a bearing housing; 7. a rotating shaft; 8. a fluororubber seal ring; 9. a rotor; 10. an opening; 11. a stirrer; 12. balance air inlets; 13. a purge port; 14. a fixed sleeve; 15. a discharge pipe; 16. an outlet dome valve.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1 to 4:

the utility model provides a disc rotary feeder, which comprises a cavity 1, wherein the upper end and the lower end of the cavity 1 are respectively and hermetically connected with a top plate 3 and a bottom plate 2, the bottom end of the bottom plate 2 is hermetically connected with a bearing box 6, the top end of the bearing box 6 is arranged in parallel with the top end of the bottom plate 2, a rotating shaft 7 is arranged in the bearing box 6, the top end of the rotating shaft 7 vertically penetrates through the cavity 1 and the top plate 3, a stirrer 11 is arranged at the top side of the top plate 3, a rotor 9 is arranged in the cavity 1, the rotor 9 is in transmission connection with the rotating shaft 7, a balance air inlet 12 is arranged at one side of the cavity 1 and is communicated with the interior of the cavity 1, one side of the bottom plate 2 is connected with a discharging pipe 15, one end of the discharging pipe 15 is communicated with the interior of the cavity 1, and the other end of the discharging pipe is connected with an outlet dome valve 16, and the pressure in the disc rotary feeder can be ensured to be stable through the outlet dome valve 16.

Wherein, roof 3 and bottom plate 2 all pass through fastener and cavity 1 fixed connection, just roof 3 and bottom plate 2 all install O type sealing washer 4 with the junction surface of cavity 1, through installing O type sealing washer 4, can effectively improve the leakproofness of being connected between roof 3 and bottom plate 2 and the cavity 1.

Wherein, the fluororubber sealing ring 8 is arranged at the contact area between the center of the rotor 9 and the bearing box 6.

The bottom end of the bearing box 6 is connected with a gear motor 5 through a fastener, and the gear motor 5 is in transmission connection with a rotating shaft 7.

Wherein, one side of discharging pipe 15 has offered and has swept mouth 13, through setting up and sweeping mouth 13, can be convenient for carry out the continuous back of gently blowing to the material, clear away the jam.

Wherein, an opening 10 is arranged on one side of the top plate 3, and the opening 10 is communicated with the inside of the cavity 1.

Wherein, the center of the stirrer 11 is provided with a fixed sleeve 14, and the fixed sleeve 14 is fixedly connected with the rotating shaft 7 through a fastener.

The working principle of the embodiment is as follows:

the disc rotary feeder can be connected in series and in parallel, and automatically works according to a program under the control of the PLC control device, and the specific flow is as follows:

firstly, the top plate 3 of the disc rotary feeder is externally connected with a rotary feeding pump, when materials are conveyed, an inlet valve of the rotary feeding pump is opened, an exhaust valve is opened, the materials fall into a feeding pump body through gravity, when the materials in the feeding pump body are equal to a set weight, a weighing module sends out signals, the inlet valve and the exhaust valve of the pump body are closed, when the upper parts are in closed states, the pump body begins to pressurize, the materials enter a cavity 1 under the action of self gravity, a tank fluidization air source is continuously supplied and top pressure, a gear motor 5 starts to rotate through signals, the materials run at the set rotating speed, an outlet dome valve 16 is opened, the materials enter a conveying pipeline through the outlet dome valve 16, are conveyed to a material receiving bin through the pipeline, after the materials are conveyed, the outlet dome valve 16 is closed, a gear motor 5 stops rotating through signals, the exhaust valve of the rotary feeding pump is opened, the residual pressure of the feeding pump is released, when the pressure in the feeding pump body is reduced to 0.02MPa, the feeding pump body is started, the fluidization air source is started to be charged, when the materials in the rotary feeding pump enter the set weight, the weighing module sends out signals, the rotary feeding pump is stopped, and the feeding pump is stopped in turn through the rotation inlet valve and the exhaust valve is stopped, and the feeding cycle is completed. The rotating speed of the speed reducing motor 5 is adjusted to enable the actual conveying speed to reach a set value, and conveying precision is guaranteed.

When the device is about to be blocked, the pressure change of the conveying gas in the pipeline can be caused, and at the moment, the PLC control device can automatically adjust the feeding speed according to the detected signal, so that the blockage is avoided. In case of blockage, the device can automatically stop the disc rotary feeder and close the conveying gas until the pressure in the pipeline is reduced to 600Pa, the PLC control device can automatically open the control valve of the purging port 13, and the blockage can be removed after the material is continuously lightly blown through repeatedly opening and closing the control valve.

It should be noted that, the PLC control device and the rotary feeding pump are devices or apparatuses existing in the prior art, or are devices or apparatuses that can be implemented in the prior art, and power supply, specific components and principles thereof are clear to those skilled in the art, and are common knowledge in the art, so they will not be described in detail.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. The utility model provides a rotary disk feeder, includes cavity (1), the upper and lower both ends of cavity (1) are sealing connection respectively has roof (3) and bottom plate (2), its characterized in that: the bottom sealing connection of bottom plate (2) has bearing box (6), the top of bearing box (6) is level with the top of bottom plate (2) and is set up, the internally mounted of bearing box (6) has pivot (7), just the top of pivot (7) is vertical to be passed cavity (1) and roof (3) to install agitator (11) in the topside of roof (3), the internally mounted of cavity (1) has rotor (9), just rotor (9) are connected with pivot (7) transmission, one side of cavity (1) is equipped with balanced air inlet (12), just balanced air inlet (12) communicate with each other with cavity (1) inside, bottom one side of bottom plate (2) is connected with discharging pipe (15), the one end of discharging pipe (15) communicates with each other with cavity (1) inside, and the other end is connected with export dome valve (16).

2. The rotary disk feeder of claim 1, wherein: the top plate (3) and the bottom plate (2) are fixedly connected with the cavity (1) through fasteners, and O-shaped sealing rings (4) are arranged on the connecting surfaces of the top plate (3) and the bottom plate (2) and the cavity (1).

3. The rotary disk feeder of claim 1, wherein: and a fluororubber sealing ring (8) is arranged at the contact area between the center of the rotor (9) and the bearing box body (6).

4. The rotary disk feeder of claim 1, wherein: the bottom of the bearing box body (6) is connected with a gear motor (5) through a fastener, and the gear motor (5) is in transmission connection with a rotating shaft (7).

5. The rotary disk feeder of claim 1, wherein: one side of the discharging pipe (15) is provided with a purging port (13).

6. The rotary disk feeder of claim 1, wherein: an opening (10) is formed in one side of the top plate (3), and the opening (10) is communicated with the inside of the cavity (1).

7. The rotary disk feeder of claim 1, wherein: the center of the stirrer (11) is provided with a fixed sleeve (14), and the fixed sleeve (14) is fixedly connected with the rotating shaft (7) through a fastener.