Fluidized bed blanking device

Abstract

The utility model discloses a fluidized bed blanking device which comprises a blanking temporary storage bin, a blanking hopper, a pneumatic butterfly valve, a vacuum feeding machine, an exhaust pipe and a discharging pipe, one end of the exhaust pipe is connected with the vacuum feeding machine, the other end of the exhaust pipe is connected with the blanking temporary storage bin, one end of the discharging pipe is connected with the blanking hopper, and the other end of the discharging pipe is connected with the pneumatic butterfly valve. The other end of the discharging pipe is connected with the discharging temporary storage bin, and the pneumatic butterfly valve is installed on the discharging pipe. According to the utility model, the blanking buffer bin can be used for being connected with the fluidized bed, so that external raw materials can be input through the blanking hopper, and during blanking, the blanking buffer bin can be vacuumized by virtue of the vacuum feeding machine, so that external atmosphere can apply pressure to the raw materials in the blanking hopper; according to the feeding device for the raw materials, sufficient power is guaranteed to enable the raw materials to effectively enter the feeding buffer bin, so that the probability that the raw materials are blocked during feeding is effectively reduced, meanwhile, a pneumatic butterfly valve is further arranged, and the feeding time and the feeding amount can be conveniently controlled.

Description

Technical Field

[0001] The utility model relates to the field of mechanical design, in particular to a fluidized bed unloading device. Background Art

[0002] A fluidized bed, also known as a fluidized bed, is a reactor that uses a gas or liquid to suspend granular raw materials, allowing them to undergo gas-solid or liquid-solid phase reactions. Fluidized beds are typically equipped with a feedstock discharge mechanism to facilitate efficient feedstock delivery.

[0003] Common fluidized beds typically feature a hopper as a feed mechanism, allowing external raw materials to be directly fed into the fluidized bed by pouring them into the hopper. While this simple structure is challenging, in practice, relying solely on gravity to feed raw materials can lead to blockages due to excessive friction, resulting in inefficient feeding. Furthermore, since the raw materials are directly poured into the fluidized bed, the feed rate is difficult to control, leading to over-speed feeding and difficulty matching the feed rate with subsequent processing speeds. Utility Model Content

[0004] The purpose of the present utility model is to provide a fluidized bed feeding device that can solve one or more of the above problems.

[0005] According to one aspect of the present invention, a fluidized bed unloading device is provided, comprising an unloading buffer bin, an unloading hopper, a pneumatic butterfly valve, a vacuum loader, an exhaust pipe and an unloading pipe.

[0006] One end of the exhaust pipe is connected to the vacuum loader, and the other end of the exhaust pipe is connected to the unloading buffer bin.

[0007] One end of the discharge pipe is connected to the discharge hopper, the other end of the discharge pipe is connected to the discharge buffer bin, and the pneumatic butterfly valve is installed on the discharge pipe.

[0008] The beneficial effects of the present invention are as follows: in the present invention, the material buffer bin can be used to be connected to the fluidized bed, so that external raw materials can be input through the material hopper, and when unloading, the material buffer bin can be vacuumed by relying on the vacuum loader, so that the external atmosphere can exert pressure on the raw materials in the material hopper to ensure that there is sufficient power so that the raw materials can effectively enter the material buffer bin, thereby effectively reducing the probability of blockage of the raw materials during unloading. At the same time, a pneumatic butterfly valve is also provided to facilitate the control of the unloading timing and the unloading amount. In addition, since the fluidized bed is connected to the material buffer bin, the material buffer bin can play a buffering role, so that even if the processing speed is slower than the unloading speed, the excess raw materials can be temporarily stored in the material buffer bin, so that the present invention can effectively match the processing speed of the fluidized bed.

[0009] In some embodiments, the discharge buffer bin is provided with a accommodating chamber, the discharge hopper is provided with a feeding chamber, one end of the discharge pipe is connected to the feeding chamber, the other end of the discharge pipe is connected to the accommodating chamber, and the pneumatic butterfly valve is configured to switch the discharge pipe.

[0010] In some embodiments, the present invention further includes a breathing valve and an air intake pipe, one end of which is connected to the material buffer bin, and the breathing valve is mounted on the other end of the air intake pipe. The provision of the air intake pipe and the breathing valve facilitates isolating the material buffer bin from the atmosphere within a predetermined pressure range, thereby ensuring that the vacuum feeder can operate effectively. Furthermore, the breathing valve can be connected to the atmosphere when the pressure exceeds the predetermined range, thereby preventing damage to the raw materials or the material buffer bin itself due to excessive pressure.

[0011] In some embodiments, one end of the air intake pipe is connected to the atmosphere, and the other end of the air intake pipe is connected to the accommodating chamber, and the breathing valve is configured to open and close the air intake pipe.

[0012] In some embodiments, the height of the end of the air inlet pipe where the breathing valve is installed is higher than the top height of the discharge pipe. This arrangement can effectively reduce the probability of raw materials flowing out of the air inlet pipe.

[0013] In some embodiments, the feed hopper is provided with an inclined portion, the inclined portion being inclined toward the location of the feed buffer bin, and the discharge pipe being connected to the bottom of the inclined portion. The inclined portion can facilitate the effective flow of raw materials entering the feed hopper toward the feed buffer bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a fluidized bed feeding device according to one embodiment of the present invention.

[0015] Figure 2 This is a schematic structural diagram of a fluidized bed feeding device according to one embodiment of the present invention.

[0016] In the figure: 1. unloading buffer bin, 2. unloading hopper, 3. pneumatic butterfly valve, 4. vacuum loader, 5. exhaust pipe, 6. discharge pipe, 7. breathing valve, 8. intake pipe, 11. accommodating chamber, 21. inclined portion, 22. feeding chamber. DETAILED DESCRIPTION

[0017] The structural principle and working principle of the present invention are further described in detail below with reference to the accompanying drawings.

[0018] refer to Figure 1 and Figure 2The utility model discloses a fluidized bed unloading device, comprising an unloading buffer bin 1, a unloading hopper 2, a pneumatic butterfly valve 3, a vacuum loader 4, an exhaust pipe 5 and a discharge pipe 6.

[0019] A receiving chamber 11 is provided in the material discharging buffer bin 1 , a material feeding chamber 22 is provided in the material discharging hopper 2 , and a slant portion 21 is provided in the material discharging hopper 2 , which is inclined toward the position of the material discharging buffer bin 1 .

[0020] One end of the discharge pipe 6 is fixedly connected to the bottom of the inclined portion 21 of the lower hopper 2 by welding, and the other end of the discharge pipe 6 is fixedly connected to the top of the lower material buffer bin 1 by bolts. After the connection, one end of the discharge pipe 6 is connected to the feed chamber 22 of the lower hopper 2, and the other end of the discharge pipe 6 is connected to the accommodating chamber 11 of the lower material buffer bin 1.

[0021] One end of the exhaust pipe 5 is fixedly connected to the vacuum loader 4 by bolts, and the other end of the exhaust pipe 5 is fixedly connected to the side of the unloading buffer bin 1 by bolts. One end of the connected exhaust pipe 5 is connected to the vacuum loader 4, and the other end of the exhaust pipe 5 is connected to the accommodating chamber 11.

[0022] The pneumatic butterfly valve 3 is fixedly installed on the discharge pipe 6 by bolts, and the pneumatic butterfly valve 3 is configured to be able to open and close the discharge pipe 6, that is, the pneumatic butterfly valve 3 can control the communication between the feed chamber 22 of the discharge hopper 2 and the accommodating chamber 11 of the discharge buffer bin 1.

[0023] The fluidized bed unloading device of the present invention further comprises a breathing valve 7 and an air inlet pipe 8. One end of the air inlet pipe 8 is fixedly connected to the unloading buffer bin 1 by bolts, and the other end of the air inlet pipe 8 can be disconnected from other structures.

[0024] After being set, one end of the air inlet pipe 8 is connected to the accommodating chamber 11 of the unloading buffer bin 1, and the other end of the air inlet pipe 8 is connected to the atmosphere.

[0025] The breathing valve 7 is installed on the end of the air inlet pipe 8 connected to the atmosphere by bolts, and the breathing valve 7 is configured to switch the air inlet pipe 8, that is, the breathing valve 7 can control the connection between the accommodating chamber 11 of the unloading buffer bin 1 and the atmosphere.

[0026] The height B at which one end of the air inlet pipe 8 is installed with the breathing valve 7 is higher than the height A of the top of the discharge pipe 6 .

[0027] When a fluidized bed unloading device of the present invention is in use, the pneumatic butterfly valve 3 can close the discharge pipe 6, and the breathing valve 7 can isolate the connection between the accommodating chamber 11 and the atmosphere, and the unloading buffer bin 1 can be connected to the fluidized bed, so that the raw materials in the accommodating chamber 11 of the unloading buffer bin 1 can be fed into the fluidized bed when needed.

[0028] The raw materials to be processed, such as feed additive particles, can be fed into the lower hopper 2 by means of an external feeding device, and the raw materials can be placed into the feeding cavity 22 of the lower hopper 2 .

[0029] When unloading is required, the pneumatic butterfly valve 3 can be opened to open the discharge pipe 6, and the feed chamber 22 of the unloading hopper 2 becomes connected with the accommodating chamber 11 of the unloading buffer bin 1, and the vacuum loader 4 is started at the same time. The vacuum loader 4 can vacuum the accommodating chamber 11 of the unloading buffer bin 1 through the exhaust pipe 5, and the accommodating chamber 11 of the unloading buffer bin 1 becomes negative pressure. Then, under the action of atmospheric pressure, the raw materials in the unloading hopper 2 can be pressed into the accommodating chamber 11 of the unloading buffer bin 1.

[0030] The raw materials in the subsequent unloading buffer bin 1 can be fed into the fluidized bed for processing, and since the unloading buffer bin 1 is provided as a buffer, even if the processing speed is slower than the unloading speed, the excess raw materials can be temporarily stored in the unloading buffer bin 1, so that the utility model can effectively match the processing speed of the fluidized bed.

[0031] In addition, during the use of the present invention, if the pressure of the accommodating chamber 11 in the unloading buffer bin 1 is higher or lower than the expected value, the breathing valve 7 can be opened to connect the accommodating chamber 11 with the atmosphere to adjust the pressure of the accommodating chamber 11 in the unloading buffer bin 1 to ensure the safety of the present invention.

[0032] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A fluidized bed feeding device, characterized in that: It includes unloading buffer bin, unloading hopper, pneumatic butterfly valve, vacuum loader, exhaust pipe and discharge pipe. One end of the exhaust pipe is connected to the vacuum loader, and the other end of the exhaust pipe is connected to the unloading buffer bin. One end of the discharge pipe is connected to the discharge hopper, the other end of the discharge pipe is connected to the discharge buffer bin, and the pneumatic butterfly valve is installed on the discharge pipe.

2. A fluidized bed feeding device according to claim 1, characterized in that: The unloading buffer bin is provided with a accommodating chamber, the unloading hopper is provided with a feeding chamber, one end of the discharge pipe is connected to the feeding chamber, the other end of the discharge pipe is connected to the accommodating chamber, and the pneumatic butterfly valve is configured to switch the discharge pipe.

3. A fluidized bed feeding device according to claim 2, characterized in that: The utility model comprises a breathing valve and an air inlet pipe, one end of the air inlet pipe is connected to the material unloading buffer bin, and the breathing valve is installed on the other end of the air inlet pipe.

4. A fluidized bed feeding device according to claim 3, characterized in that: One end of the air intake pipe is connected to the atmosphere, and the other end of the air intake pipe is connected to the accommodating chamber. The breathing valve is configured to open and close the air intake pipe.

5. The fluidized bed feeding device according to claim 3, characterized in that: The height of one end of the air inlet pipe where the breathing valve is installed is higher than the top height of the discharge pipe.

6. The fluidized bed feeding device according to claim 1, characterized in that: The discharge hopper is provided with an inclined portion, which is inclined toward the location of the discharge buffer bin, and the discharge pipe is connected to the bottom of the inclined portion.

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