CN221025421U - Powder discharge device - Google Patents

Abstract

The utility model discloses a powder unloading device, relates to a container for storing powder, and solves the problems that the powder is easy to accumulate and block at a discharge hole of a hopper. The technical scheme adopted by the utility model is as follows: the powder unloading device comprises a hopper, wherein the lower end of the hopper is provided with an air chamber and a discharging pipe, the air chamber is connected with an air inlet pipe, the discharging pipe penetrates through the air chamber and is communicated with the inner cavity of the hopper, one end of the discharging pipe is a discharging end, the other end of the discharging pipe is fixed on the cavity wall between the air chamber and the inner cavity of the hopper, and the cavity wall between the air chamber and the inner cavity of the hopper is a breathable impermeable material layer. The air inlet pipe of the air chamber is externally connected with a high-pressure air source, and the high-pressure air enters the hopper through the cavity wall between the air chamber and the inner cavity of the hopper, so that powder in the hopper is boiled, the powder is fluidized, the powder fluidity is enhanced, and the accumulation, sedimentation and blockage of the powder are avoided. The utility model is used for temporarily storing powder from the previous process equipment and discharging the powder to the subsequent equipment.

Description

Powder discharge device

Technical Field

The utility model relates to a container for storing powder, in particular to a discharging device for temporarily storing powder.

Background

Powder exists in the hopper for a long time and is easy to agglomerate, so that the phenomenon that the discharge port of the hopper is not smooth in discharge and the bin wall is hung up is caused, and even the phenomenon that the discharge port is blocked is caused. For these phenomena, the stick is inserted into the discharge hole to be treated manually, and the stick can also be treated by mechanical vibration or high-pressure air flow blowing. The manual cleaning mode consumes time and labor, and has potential safety hazard.

The patent of publication number CN 116654465A discloses a prevent stifled structure of powder blanking machine, and vibrating motor drives the ejection of compact fill and shakes to the striking of vibration ball is inside to produce at vibrating shell and shake, assaults ejection of compact fill inside through high-pressure wind big gun mechanism simultaneously, falls the powder that produces the jam because of moist or density is too high inside the ejection of compact fill, has improved the unloading speed of blanking machine, avoids inside production jam. The blanking machine in the scheme is complex in structure, easy to deform under the action of long-term vibration and easy to fail.

The patent with the publication number of CN 213678894U discloses an anti-blocking concrete powder blanking system, the lower part of a powder silo is provided with an air inlet pipe, one end of the air inlet pipe extends into the powder silo and inclines upwards, the air is ensured to be blown out from bottom to top, the other end of the air inlet pipe is used for a pressure container to provide air pressure, the air inlet pipe conveys high-pressure air flow to the joint of the auger and the powder silo from a plurality of angles, the air flow rate in the powder silo is increased, the auger blockage caused by accumulation of powder is avoided, and the smoothness of powder conveying is ensured. The above-mentioned concrete powder unloading system has following disadvantages: the first air inlet pipe and the air inlet pipe are obliquely upwards arranged at one end of the first air inlet pipe extending into the powder silo, so that powder easily enters the air inlet pipe, and the air inlet pipe is blocked; secondly, the action range of each air inlet pipe is limited, powder near the outlet of the air inlet pipe can only be sprayed, and the problem of powder blockage cannot be completely solved.

Disclosure of utility model

The utility model provides a powder unloading device, which solves the problem that powder is easy to accumulate and block at a discharge hole of a hopper.

The technical scheme adopted by the utility model is as follows: the powder unloading device comprises a hopper, wherein the lower end of the hopper is provided with an air chamber and a discharging pipe, the air chamber is connected with an air inlet pipe, the discharging pipe penetrates through the air chamber and is communicated with the inner cavity of the hopper, one end of the discharging pipe, which is far away from the air chamber, is a discharging end, the other end of the discharging pipe is fixed on a cavity wall between the air chamber and the inner cavity of the hopper, the cavity wall between the air chamber and the inner cavity of the hopper is a breathable impermeable layer, and the cavity wall between the air chamber and the outside is a breathable impermeable layer.

In order to avoid the phenomenon of blocking in the discharging pipe, further: the pipe wall of the pipe section of the discharge pipe penetrating through the air chamber is a breathable impermeable layer, and the pipe section of the discharge pipe positioned outside the air chamber is of a breathable solid structure.

In order to facilitate the external high-pressure air source of the air inlet pipe, further: one end of the air inlet pipe, which is positioned outside the air chamber, is provided with a joint.

In order to facilitate the discharge of the powder, further: the inner cavity of the hopper is big-end-up, the inner cavity of the hopper is in a shape of a round table or a regular prism table, the inner cavity of the discharging pipe is big-end-up, the inner cavity of the discharging pipe is in a shape of a round table or a regular prism table, and the center line of the hopper is overlapped with the center line of the discharging pipe. For example, the inner cavity of the hopper is in the shape of a regular quadrangular frustum, the outline of the air chamber is in a cuboid, the length and the width of the cuboid are equal to each other and the side length of the lower end of the hopper is equal to each other, and the discharging pipe is also in the shape of a regular quadrangular frustum.

To ensure the strength of the hopper and the air chamber, specific are: the hopper is made of metal, and the cavity wall between the air chamber and the outside is also made of metal. For example: the cavity wall between the air chamber and the outside and the hopper are made of stainless steel.

The breathable impermeable layer is used to block powder, but air can pass through, in particular: the breathable impermeable layer is a polyester fiber mesh.

The beneficial effects of the utility model are as follows: the air inlet pipe of the air chamber is externally connected with a high-pressure air source, high-pressure air enters the hopper through the cavity wall between the air chamber and the inner cavity of the hopper, so that powder in the hopper is boiled, the powder is fluidized, the powder activity is improved, the powder fluidity is enhanced, the powder flowing speed is accelerated, and the accumulation, sedimentation and blockage of the powder are avoided. Powder in the hopper cannot enter the air chamber through the cavity wall between the air chamber and the inner cavity of the hopper, so that the air inlet pipe is prevented from being blocked by the powder and the powder enters the high-pressure air source. After the powder has a certain flow velocity, the powder can also play a scouring driving role on other sundries in the powder, so that the sundries are prevented from depositing, and the smoothness of the discharging pipe is ensured.

Drawings

FIG. 1 is a schematic view of the powder unloading apparatus of the present utility model.

Fig. 2 is a perspective view of the embodiment shown in fig. 1.

Fig. 3 is a top view of the embodiment shown in fig. 2.

Reference numerals: hopper 1, air chamber 2, discharging pipe 3, intake pipe 4.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, the powder unloading device comprises a hopper 1, wherein an air chamber 2 and a discharging pipe 3 are arranged at the lower end of the hopper 1. The air chamber 2 is connected with an air inlet pipe 4, the air inlet pipe 4 is used for being externally connected with a high-pressure air source, and high-pressure air is continuously introduced into the air chamber 2. In order to facilitate the air inlet pipe 4 to be externally connected with a high-pressure air source, a connector is arranged at one end of the air inlet pipe 4, which is positioned outside the air chamber 2, for example, a threaded connector is arranged at the air inlet pipe 4. The wall between the air chamber 2 and the inner cavity of the hopper 1 is a breathable impermeable layer, the breathable impermeable layer is a structural layer through which the powder cannot pass, and for example, the breathable impermeable layer is a polyester fiber net. The cavity wall between the air chamber 2 and the outside is an airtight layer, so that the air chamber 2 is prevented from being directly communicated with the atmosphere, and the high-pressure state of the air chamber 2 is maintained. The chamber wall between the air chamber 2 and the outside and the hopper 1 can be an integral body or welded connection.

The discharging pipe 3 penetrates through the air chamber 2 and is communicated with the inner cavity of the hopper 1, one end, away from the air chamber 2, of the discharging pipe 3 is a discharging end, and the other end of the discharging pipe 3 is fixed on the cavity wall between the air chamber 2 and the inner cavity of the hopper 1. Both ends of the discharging pipe 3 are open, so that a round hole is formed in the cavity wall between the air chamber 2 and the inner cavity of the hopper 1 and is connected with one end of the discharging pipe 3 positioned in the air chamber 2. The discharging pipe 3 is divided into two sections, namely a pipe section penetrating through the air chamber 2 and a pipe section positioned outside the air chamber 2. The pipe section of the discharging pipe 3 positioned outside the air chamber 2 is of an airtight solid structure, the tail end of the pipe section is a discharging hole, for example, the pipe section is a steel pipe, and the steel pipe is welded and fixed with the air chamber 2. The pipe section of the discharging pipe 3 penetrating through the air chamber 2 is of an airtight solid structure or an airtight impermeable material layer, and in order to avoid the phenomenon of blocking inside the discharging pipe 3, the pipe wall of the pipe section of the discharging pipe 3 penetrating through the air chamber 2 is preferably an airtight impermeable material layer.

The hopper 1 and the air chamber 2 may be made of various hard materials. In order to ensure the strength of the hopper 1 and the air chamber 2, the hopper 1 is preferably made of metal, and the wall of the chamber between the air chamber 2 and the outside is also made of metal. For example, the wall of the chamber between the air chamber 2 and the outside and the hopper 1 are made of stainless steel.

In order to facilitate the discharging of the powder, the inner cavity of the hopper 1 is large at the top and small at the bottom, for example, the inner cavity of the hopper 1 is in a shape of a round table or a regular prism table. The inner cavity of the discharging pipe 3 is big in top and small in bottom, the inner cavity of the discharging pipe 3 is also in a round table or a regular prismatic table shape, and the center line of the hopper 1 is overlapped with the center line of the discharging pipe 3. For example, referring to fig. 1 to 3, the inner cavity of the hopper 1 is in the shape of a regular square table, the outer contour of the air chamber 2 is in the shape of a cuboid, the length and width of the cuboid are equal to each other and the side length of the lower end of the hopper 1 is equal to each other, and the discharging pipe 3 is also in the shape of a regular square table. The discharging pipe 3 is arranged in the middle of the lower end of the hopper 1, so that the distances from the side walls of the hopper 1 to the discharging pipe 3 are basically equal, the time for powder on the periphery of the bottom of the hopper 1 to flow into the discharging pipe 3 is equivalent, and the long-term retention of the powder far away from the discharging pipe 3 from the bottom of the hopper 1 to deposit and block can be avoided.

The powder unloading device is used for temporarily storing powder from the previous flow equipment and unloading the powder to the subsequent equipment, so that the phenomena of bin sticking and blocking can be avoided.

Claims (8)

1. Powder discharge apparatus, including hopper (1), its characterized in that: the lower extreme of hopper (1) sets up air chamber (2) and discharging pipe (3), intake pipe (4) are connected to air chamber (2), discharging pipe (3) run through air chamber (2) and with the inner chamber intercommunication of hopper (1), one end that air chamber (2) was kept away from to discharging pipe (3) is the discharge end, the cavity wall between air chamber (2) and the inner chamber of hopper (1) is fixed in to the other end of discharging pipe (3), cavity wall between air chamber (2) and the inner chamber of hopper (1) is ventilative impermeable layer, cavity wall between air chamber (2) and the external world is the impermeable layer.

2. The powder discharge apparatus of claim 1, wherein: the pipe wall of the pipe section of the discharge pipe (3) penetrating the air chamber (2) is a breathable impermeable layer, and the pipe section of the discharge pipe (3) positioned outside the air chamber (2) is of a breathable solid structure.

3. The powder discharge apparatus of claim 1, wherein: one end of the air inlet pipe (4) positioned outside the air chamber (2) is provided with a joint.

4. The powder discharge apparatus of claim 1, wherein: the inner cavity of the hopper (1) is big-end-up, the inner cavity of the hopper (1) is in a shape of a round table or a regular prism table, the inner cavity of the discharging pipe (3) is big-end-up, the inner cavity of the discharging pipe (3) is in a shape of a round table or a regular prism table, and the center line of the hopper (1) is overlapped with the center line of the discharging pipe (3).

5. The powder discharge apparatus of claim 4, wherein: the inner cavity of the hopper (1) is in a shape of a regular square frustum, the outer contour of the air chamber (2) is in a cuboid, the length and the width of the cuboid are equal to each other and are equal to the side length of the lower end of the hopper (1), and the discharging pipe (3) is also in a shape of a regular square frustum.

6. The powder discharge apparatus as claimed in any one of claims 1 to 5, wherein: the hopper (1) is made of metal, and the cavity wall between the air chamber (2) and the outside is also made of metal.

7. The powder discharge apparatus of claim 6, wherein: the cavity wall between the air chamber (2) and the outside and the hopper (1) are made of stainless steel.

8. The powder discharge apparatus as claimed in any one of claims 1 to 5, wherein: the breathable impermeable layer is a polyester fiber mesh.