Vacuum feeding machine

Abstract

The utility model provides a vacuum feeding machine, and aims to solve the technical problem that in the prior art, a large amount of moisture enters a feeding machine all the time during material suction and blanking, materials are sticky, and a filter is blocked. The reactor comprises a reactor body. The interior of the reactor body is divided into a material suction chamber and a buffer chamber from top to bottom through a partition plate. The material suction chamber is provided with an air exhaust channel, and the air exhaust channel is externally connected with a vacuum generator. And a filter is arranged in the suction chamber. The filter is communicated with a back flushing pipeline, and the back flushing pipeline is externally connected with a back flushing device. And a feeding pipeline of the material suction chamber is arranged between the filter and the partition plate. The partition plate is rotationally connected to the reactor body. And the buffer chamber is provided with a discharge channel with a discharge valve. According to the invention, the fixing or overturning of the partition plate relative to the reactor body is controlled according to the process requirement in the material suction and blanking process, so that moisture is prevented from flowing into the material suction chamber all the time, the probability that materials in the material suction chamber are affected with damp is reduced in the material suction process, and the filter is further unlikely to be blocked by the materials which are affected with damp and become sticky.

Description

Technical Field

[0001] This application relates to the field of transportation equipment for dry materials, and particularly to a vacuum feeding machine. Background Art

[0002] Nowadays, vacuum feeding machines have been widely used in various light and heavy industries such as chemical industry, pharmaceutical industry, food industry, metallurgy industry, building materials industry, and agricultural and sideline products industry. Its working principle is to utilize the air pressure difference between vacuum and the ambient space to form gas flow in the pipeline, so as to drive the movement of powdery materials to complete the transportation of powders. The silo of the vacuum feeding machine in the prior art is interconnected. Generally, after the material is sucked into the feeding machine and the air-material separation is achieved, it needs to fall to the discharge port of the silo. However, during the material suction process, moisture is likely to pour into the silo from this discharge port, resulting in a relatively high humidity in the silo. When the material enters a silo with a relatively high humidity, it will become sticky due to moisture absorption, and it is very easy to stick between the filter holes of the filter screen during filtration, which further leads to insufficient suction of the vacuum pumping equipment for the material and inability to perform efficient or even normal feeding. Utility Model Content

[0003] The purpose of this utility model is to provide a vacuum feeding machine to solve the problems raised in the above background art.

[0004] A vacuum feeding machine, which includes a reactor body; inside the reactor body, it is divided into a material suction chamber and a buffer chamber from top to bottom by a partition board;

[0005] The material suction chamber is provided with an air extraction channel, and a vacuum generator is externally connected to the air extraction channel; the material suction chamber is provided with a filter; an anti-blowing pipeline is connected to the filter; an anti-blowing device is externally connected to the anti-blowing pipeline; the feeding pipeline of the material suction chamber is arranged between the filter and the partition board;

[0006] The partition board is rotatably connected to the reactor body;

[0007] The buffer chamber is provided with a discharge channel; a discharge valve is provided in the discharge channel.

[0008] Furthermore, the vacuum feeding machine further includes a level gauge; the level gauge is arranged between the filter and the partition board to detect the height of the material in the material suction chamber.

[0009] Furthermore, the level gauge is movably installed on the side wall of the material suction chamber.

[0010] Furthermore, a first vibration device is externally connected to the outer wall of the material suction chamber.

[0011] Furthermore, the first vibration device is a bin wall vibrator or a pneumatic hammer.

[0012] Further, a pneumatic device is externally connected to the partition board; the activation of the pneumatic device drives the partition board to flip.

[0013] Further, a second vibration device is installed on the side wall of the buffer chamber.

[0014] Further, an air extraction valve is provided in the air extraction channel; an anti-blowing valve is provided in the anti-blowing pipeline; a feed valve is provided in the feed channel.

[0015] Further, the filter is a filter bag.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) During the process of sucking and dropping materials, the feeding machine controls the fixation or flipping of the partition board relative to the reactor body according to the process requirements, avoiding continuous influx of moisture into the material suction chamber, thereby reducing the probability of the materials in the material suction chamber being affected by moisture during the material suction process, and further making it difficult for the filter to be blocked by the moisture-affected and sticky materials.

[0018] (2) The feeding machine can also be provided with a level gauge on the side wall of the material suction chamber. The height of the materials in the material suction chamber is detected by the level gauge to control the upper limit of the materials in the material suction chamber, preventing the accumulation of materials between the filter holes of the material filter and further preventing the materials between the filter holes from being sucked into the vacuum generator through the air extraction pipeline. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of a vacuum feeding machine according to Embodiment 2 of the present application.

[0021] Reference Signs:

[0022] 10, material suction chamber; 11, buffer chamber; 12, pulse vibrator; 13, partition board; 14, discharge flange;

[0023] 2, filter;

[0024] 3, anti-blowing pipeline; 31, anti-blowing valve;

[0025] 4, air extraction pipeline; 41, air extraction valve;

[0026] 5, feed pipeline; 51, feed valve;

[0027] 6, level gauge. Detailed implementation manners

[0028] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present invention is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0030] In the present invention, unless otherwise clearly defined and limited, terms such as "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The following disclosure provides many different implementation manners or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various implementation manners discussed.

[0032] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0033] Embodiment 1

[0034] The embodiment of the present invention provides a vacuum feeding machine. Please refer to Figure 1 . The vacuum feeding machine includes a reactor body. Inside the reactor body, a partition 13 divides it into a material suction chamber 10 and a buffer chamber 11 from top to bottom. The partition 13 is rotatably connected to the reactor body. Specifically, a pneumatic device can be externally connected to the partition 13, and by starting the pneumatic device, the partition 13 can be driven to flip.

[0035] Specifically,

[0036] There is a material suction chamber 10, which is provided with an air extraction pipeline 4. The air extraction pipeline 4 is provided with an air extraction valve 41. When the air extraction valve 41 is opened, a vacuum generator is externally connected through the air extraction pipeline 4 to realize the vacuum pumping inside the reactor body. The vacuum generator can be a vacuum pump. A filter 2 is installed at the top inside the material suction chamber 10. Preferably, the filter 2 is a filter bag. The filter 2 is connected with a backflush pipeline 3. The backflush pipeline 3 is provided with a backflush valve 31, and a pulse backflush device is externally connected to the backflush pipeline 3. A feed pipeline 5 is provided on the side wall of the material suction chamber 10. The feed pipeline 5 is arranged between the filter 2 and the partition plate 13. Among them, the feed pipeline 5 is provided with a feed valve 51, which can control the material feeding amount in the material suction chamber 10. In addition, a first vibration device is externally connected to the outer wall of the material suction chamber 10. Preferably, the first vibration device can be a bin wall vibrator or a pneumatic hammer.

[0037] By opening the feed valve 51 and the air extraction valve 41 and starting the vacuum pump, the material is sucked into the material suction chamber 10. At this time, since the partition plate 13 is fixed relative to the material suction chamber 10, it can block the moisture in the buffer chamber 11 from continuously flowing towards the material suction chamber 10, thereby reducing the probability of the material getting damp. When the vacuum pumping and material feeding are stopped, the backflush valve 31 is opened and the pulse backflush device is started to realize the reverse blowing into the filter 2.

[0038] There is a buffer chamber 11, and its bottom end is provided with a discharge pipeline. The discharge pipeline is connected to the buffer chamber 11 through a discharge flange 14, and a discharge valve is connected at the discharge pipeline. During the above backflush process, the pneumatic device is started to drive the partition plate 13 to turn over so that the material can fall towards the buffer chamber 11; at the same time, the first vibration device is started so that the material falling on the partition plate 13 and the material attached to the inner wall of the material suction chamber 10 can also fall towards the buffer chamber 11. Since the opening of the discharge valve will cause moisture to pour into the reactor body, during the above material falling process, the discharge valve remains closed. When the material falling from the material suction chamber 10 to the buffer chamber 11 is completed, the discharge valve is opened to output the material in the buffer chamber 11 from the reactor body. In order to accelerate the material discharge speed and prevent the material from adhering to the buffer chamber 11, a second vibration device is installed on the side wall of the buffer chamber 11. The second vibration device is a pulse vibrator 12.

[0039] Based on this embodiment, the working principle of the present application is:

[0040] Open the feed valve 51 and the air extraction valve 41. By starting the vacuum pump, the material is sucked into the material suction chamber 10, and the material and air are completely separated by the filter 2. When it is necessary to discharge the material, stop vacuum pumping and feeding. By opening the backflush valve 31 and starting the pulse backflush device, reverse blowing is performed on the filter 2. At the same time, start the pneumatic device to drive the turnover of the partition plate 13, so that the material in the material suction chamber 10 falls towards the buffer chamber 11; and start the first vibration device to make the material adhering to the inner wall of the material suction chamber 10 and the partition plate 13 fall towards the buffer chamber 11.

[0041] After the backflush is completed, close the backflush valve 31, stop the turnover of the partition plate 13, and turn off the first vibration device. Open the valve and start the pulse vibrator 12 to output the material in the buffer chamber 11 from the reactor body.

[0042] Based on this embodiment, the advantages of the present application are:

[0043] During the material suction and discharging process of this feeding machine, according to the process requirements, the fixation or turnover of the partition plate 13 relative to the reactor body is controlled, avoiding continuous influx of moisture into the material suction chamber 10. Thus, during the material suction process, the probability of the material in the material suction chamber 10 being affected by moisture is reduced, and further, the filter 2 is not easily blocked by the moisture-affected sticky material.

[0044] Embodiment 2

[0045] Based on Embodiment 1, in order to further prevent the filter 2 from being blocked by the moisture-affected sticky material, a level gauge 6 is further provided on the side wall of the material suction chamber 10 of this vacuum feeding machine. The level gauge 6 is arranged between the filter 2 and the partition plate 13 for detecting the height of the material in the material suction chamber 10. The level gauge 6 is movably installed on the side wall of the material suction chamber 10. That is, the installation height of the level gauge 6 in the material suction chamber 10 can be adjusted according to the material properties. By detecting the height of the material in the material suction chamber 10 through the level gauge 6, the upper limit of material suction is controlled, so that the material is not easily accumulated in the filter 2, and at the same time, it is also avoided that the material enters the vacuum generator.

[0046] Based on this embodiment, the working principle of the present application is:

[0047] When the material is sucked into the material suction chamber 10, once it is detected that the material reaches the detection height of the level gauge 6, stop vacuum pumping and feeding to avoid the accumulation of material between the filter holes of the filter 2. Then, through backflush, reverse blowing is performed on the filter 2. At the same time, start the pneumatic device to drive the turnover of the partition plate 13, so that the material in the material suction chamber 10 falls towards the buffer chamber 11.

[0048] After the backflush is completed, close the backflush valve 31 and stop the turnover of the partition plate 13. Open the discharge valve and start the pulse vibrator 12 to enable the material in the buffer chamber 11 to be quickly output from the reactor body.

[0049] After the materials in the buffer chamber 11 are completely output, the above-mentioned processes of sucking and discharging materials are repeated in sequence to achieve the continuity of equipment operation. The instrument switches of the above various valves and equipment (such as vacuum pumps, pneumatic devices, pulse backflush devices, etc.) can be fully automatically controlled by the PID program.

[0050] Based on this embodiment, the advantages of this application are:

[0051] The material level meter 6 is used to detect the material height in the material suction chamber 10, so as to control the upper limit of materials in the material suction chamber 10, avoid the accumulation of materials between the filter holes of the filter 2, and further prevent the materials between the filter holes from being sucked into the vacuum generator by the air extraction pipeline 4.

Claims

1. A vacuum feeder, characterized in that: The vacuum feeder comprises a reactor body; the reactor body is divided into a suction chamber and a buffer chamber from top to bottom by a partition; The suction chamber is provided with an air extraction channel, and the air extraction channel is externally connected to a vacuum generator; the suction chamber is provided with a filter; the filter is connected with a backflush pipe; the backflush pipe is externally connected to a backflush device; the feed pipe of the suction chamber is arranged between the filter and the partition; The partition is rotatably connected to the reactor body; The cache chamber is provided with a discharge channel; the discharge channel is provided with a discharge valve.

2. The vacuum feeder according to claim 1, characterized in that: The vacuum feeder also includes a material level meter; the material level meter is arranged between the filter and the partition plate to detect the material height in the suction chamber.

3. The vacuum feeder according to claim 2, characterized in that: The material level meter is movably mounted on the side wall of the suction chamber.

4. The vacuum feeder according to any one of claims 1 to 3, characterized in that: The outer wall of the suction chamber is externally connected with a first vibration device.

5. The vacuum feeder according to claim 4, characterized in that: The first vibration device is a warehouse wall vibrator or an air hammer.

6. The vacuum feeder according to claim 1, characterized in that: The partition is connected to a pneumatic device; the activation of the pneumatic device drives the partition to flip.

7. The vacuum feeder according to claim 1, characterized in that: A second vibration device is installed on the side wall of the cache chamber.

8. The vacuum feeder according to claim 1, characterized in that: The air extraction channel is provided with an air extraction valve; the back-blowing pipeline is provided with a back-blowing valve; and the feed channel is provided with a feed valve.

9. The vacuum feeder according to claim 1, characterized in that: The filter is a filter bag.

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