CN219488918U

CN219488918U - Pneumatic conveying and sending tank

Info

Publication number: CN219488918U
Application number: CN202320688474.4U
Authority: CN
Inventors: 薛平桥; 程林
Original assignee: Wuxi Nanquan Pressure Vessel Co ltd
Current assignee: Wuxi Nanquan Pressure Vessel Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-08
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to a pneumatic conveying sending tank, which comprises a bin body and a sending tank, wherein a discharge hole is formed in the far end of the bin body and is connected with a feed inlet of the near end of the sending tank, a flange interface and at least three first air inlets are further formed in the near end of the sending tank, a discharge pipe is arranged at the far end of the sending tank, the flange interface is connected with the bin body through an air return pipe, a pressure regulating device is arranged below the flange interface at the near end of the sending tank, the pressure regulating device comprises a bracket arranged at the near end of the sending tank and an air spring arranged on the bracket, an air pipe is arranged at the far end of the air spring and is connected with the first air inlets, a valve body is arranged at the near end of the air spring, and the valve body is matched with the end face of the flange interface. The pneumatic conveying sending tank improves the conveying efficiency, and meanwhile, the pneumatic conveying sending tank is simple in structure and low in equipment cost.

Description

Pneumatic conveying and sending tank

Technical Field

The utility model relates to the technical field of material conveying equipment, in particular to a pneumatic conveying sending tank.

Background

At present, the development of pneumatic conveying is changed from dilute phase conveying to dense phase conveying, the current dense phase pneumatic conveying application is wider and wider, and the powder materials such as dry powder of fire extinguishers in China are conveyed by dense phase pneumatic conveying.

The utility model patent in China with the document number of CN212942776U discloses a sending tank conveying device capable of realizing the monitoring of air leakage of a butterfly valve of a sending tank, which comprises a raw material bin, a weighing tank arranged below the raw material bin and a mixed sending tank arranged below the weighing tank, wherein a discharging pipeline is arranged at the bottom of the weighing tank, branch pipelines are arranged on the discharging pipeline, a sending tank feeding butterfly valve is arranged on the discharging pipeline between the branch pipelines and the mixed sending tank, and a pressure sensor for detecting the pressure of the discharging pipeline and feeding back pressure data to an automatic control system is arranged on the branch pipelines. The book scheme is changed, the material can be fed from the raw material bin to the sending tank, and then the material is discharged from the sending tank, but the raw material bin and the sending tank are separately air-transported, a dust remover is required to be additionally arranged, the sending tank is required to be fed and then pressurized each time, the process flow is long, the overall system equipment cost is high, and the conveying efficiency is low.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, it is an object of the present utility model to provide a pneumatic conveying send tank that solves one or more of the problems of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the pneumatic conveying sending tank comprises a bin body and a sending tank, wherein a discharge hole is formed in the far end of the bin body and connected with a feed inlet of the near end of the sending tank, a flange interface and at least three first air inlets are further formed in the near end of the sending tank, a discharge pipe is arranged at the far end of the sending tank, the flange interface is connected with the bin body through an air return pipe, a pressure regulating device is arranged below the flange interface, the pressure regulating device comprises a support and an air spring, the support is arranged at the near end of the sending tank, the air spring is arranged at the far end of the air spring and connected with the first air inlets, a valve body is arranged at the near end of the air spring, and the valve body is matched with the end face of the flange interface.

Further, the valve body is tapered, and the distal end of the flange interface has a chamfer that mates with the valve body.

Further, the sending tank comprises a second cylinder body, a first cylinder body, a cone body and an end socket which are sequentially connected from the proximal end to the distal end.

Further, the side surface of the second cylinder body is communicated with the feeding hole, and the bracket is arranged in the second cylinder body and positioned at the proximal end of the feeding hole.

Further, the first air inlet is annularly arranged at the proximal end of the first cylinder.

Further, a second air inlet is formed in the far end of the sealing head.

Further, the distal end of the cone is provided with a fluidization plate, and the fluidization plate is connected with the inner wall of the cone through a supporting block.

Further, one end of the discharging pipe penetrates through the side face of the cone, and the other end of the discharging pipe penetrates through the fluidization plate and is aligned above the second air inlet.

Further, at least three supporting feet are arranged on the outer side of the cone.

Further, a feed valve is further arranged between the discharge port and the feed port.

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

when the pneumatic conveying sending tank is used for feeding, the flange interface of the sending tank is in an open state, materials enter the sending tank and return air to the bin body, meanwhile, the first air inlet is used for air inlet, the air spring starts to charge air through the air pipe and pushes the valve body to move towards the near end, when the valve body is completely butted with the flange interface, the feeding valve is closed, feeding is stopped, the first air inlet continues to charge air until the set discharging pressure condition is met, the pressurization and feeding of the sending tank are simultaneously realized in the whole feeding process, meanwhile, certain pressure in the bin body is ensured to accelerate feeding, the conveying efficiency is improved, and meanwhile, the pneumatic conveying sending tank is simple in structure and low in equipment cost.

And (II) further, the flange interface of the sending tank returns air to the bin body through an air return pipe, and the whole conveying process is in a fully-closed state, so that dust leakage and dust emission are avoided, and the device is clean and safe.

Drawings

Fig. 1 shows a schematic structural diagram of a pneumatic conveying and sending tank according to a first embodiment of the present utility model.

Fig. 2 shows a schematic structural diagram of a sending tank in a pneumatic conveying sending tank according to a first embodiment of the present utility model.

The reference numerals in the drawings:

1. a bin body; 11. a discharge port; 12. a feed valve; 13. an air return pipe; 2. a transmitting tank; 21. a first cylinder; 211. a first air inlet; 22. a second cylinder; 221. a flange interface; 222. a feed inlet; 23. a cone; 231. a fluidization plate; 232. a support block; 233. a discharge pipe; 234. supporting feet; 24. a seal head; 241. a second air inlet; 3. a pressure regulating device; 31. a bracket; 32. an air spring; 33. a valve body; 34. and a gas pipe.

Detailed Description

For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or essential characteristics thereof.

In the description of the present utility model, the positional or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

To more clearly describe the structure of the pneumatic conveying and transmitting tank, the present utility model defines terms of "distal end" and "proximal end", specifically, "distal end" means an end close to the discharging direction, and "proximal end" means an end far from the discharging direction, taking fig. 1 as an example, the upper end of the first cylinder 21 in fig. 1 is a proximal end, and the lower end of the first cylinder 21 in fig. 1 is a distal end.

Example 1

Referring to fig. 1 and 2, the pneumatic conveying and sending tank includes a bin body 1 and a sending tank 2, a discharge port 11 is provided at a distal end of the bin body 1 and connected with a feed port 222 at a proximal end of the sending tank 2, a flange interface 221 and at least three first air inlets 211 are further provided at a proximal end of the sending tank 2, and the first air inlets 211 are air-inlet through an external air pump (not shown in the figure). The remote end of the sending tank 2 is provided with a discharging pipe 233, the flange interface 221 is connected with the bin body 1 through an air return pipe 13, the near end of the sending tank 2 is positioned below the flange interface 221 and is provided with a pressure regulating device 3, the pressure regulating device 3 comprises a bracket 31 arranged at the near end of the sending tank 2 and an air spring 32 arranged on the bracket 31, the remote end of the air spring 32 is provided with an air pipe 34 connected with the first air inlet 211, the near end of the air spring 32 is provided with a valve body 33, and the valve body 33 is matched with the end face of the flange interface 221.

The specific structure of the transmitting tank 2 is described below:

referring to fig. 2, specifically, the valve body 33 is tapered, and the distal end of the flange interface 221 has a chamfer that mates with the valve body 33. The air spring 32 is inflated by the first air inlet 211, and drives the valve body 33 to move towards the proximal end during inflation.

Referring to fig. 2, further, the sending tank 2 includes a second cylinder 22, a first cylinder 21, a cone 23, and a sealing head 24 sequentially connected from a proximal end to a distal end.

Referring to fig. 2, further, the side surface of the second cylinder 22 is communicated with the feeding port 222, the bracket 31 is disposed inside the second cylinder 22 and located at the proximal end of the feeding port 222, and the flange interface 221 is disposed at the proximal end of the second cylinder 22.

Referring to fig. 2, further, the first air inlet 211 is annularly disposed at the proximal end of the first cylinder 21, and is used for forming a high pressure area on the upper portion of the material and pushing the material to move downward as a whole.

Referring to fig. 2, further, a second air inlet 241 is provided at the distal end of the sealing head 24, the second air inlet 241 is externally connected to an air pump for air intake, and the second air inlet 241 is used for blowing the material at the bottom of the tank body to be loosened, so that the material can conveniently enter the discharging pipe 233.

Referring to fig. 2, further, a fluidization plate 231 is disposed at the distal end of the cone 23, and the fluidization plate 231 is connected to the inner wall of the cone 23 through a supporting block 232, and the fluidization plate 231 is used for increasing the flowability of the material and controlling the flow rate.

Referring to fig. 2, further, the discharging pipe 233 has one end passing through the side of the cone 23 and the other end passing through the fluidization plate 231 and the nozzle aligned above the second air inlet 241.

Referring to fig. 2, further, at least three supporting feet 234 are disposed on the outer side of the cone 23 for supporting the sending tank 2.

Referring to fig. 2, further, a feeding valve 12 is further disposed between the discharge port 11 and the feeding port 222, for controlling the feeding of the bin body 1.

The specific working procedure of the utility model is as follows:

the feed valve 12 is opened, and the material in the bin body 1 is conveyed from the discharge port 11 to the feed port 222 and enters the sending tank 2. At this time, the flange interface 221 of the sending tank 2 is in an open state, and the material enters the sending tank 2 and returns air to the bin body 1. The first air inlet 211 starts to be charged, and at the same time, the air spring 32 starts to be charged through the air pipe 34 and pushes the valve body 33 to move toward the proximal end, and when the valve body 33 is completely abutted with the flange interface 221, the feeding valve 12 is closed and the charging is stopped. The first air intake 211 continues to intake air at this time until the set discharge pressure condition is satisfied. When the pressure reaches the set requirement, the second air inlet 241 is opened, and the material enters the discharging pipe 233 for conveying through the air flow. After the conveyance is completed, the air spring 32 of the pressure regulator 3 loses air pressure, and the valve body 33 descends under the action of gravity, completing one cycle.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. Pneumatic conveying send jar, its characterized in that: the pneumatic conveying sending tank comprises a tank body and a sending tank, wherein a discharge hole is formed in the far end of the tank body and is connected with a feed inlet of the near end of the sending tank, a flange interface and at least three first air inlets are further formed in the near end of the sending tank, a discharge pipe is arranged at the far end of the sending tank, the flange interface is connected with the tank body through an air return pipe, a pressure regulating device is arranged below the flange interface, the pressure regulating device comprises a support and an air spring, the support is arranged at the near end of the sending tank, the air spring is arranged at the far end of the air spring, the air pipe is connected with the first air inlets, a valve body is arranged at the near end of the air spring, and the valve body is matched with the end face of the flange interface.

2. A pneumatic conveying and routing tank as claimed in claim 1 wherein: the valve body is conical, and the far end of the flange joint is provided with a chamfer matched with the valve body.

3. A pneumatic conveying and routing tank as claimed in claim 1 wherein: the sending tank comprises a second cylinder body, a first cylinder body, a cone body and an end enclosure which are sequentially connected from the proximal end to the distal end.

4. A pneumatic conveying and routing tank as claimed in claim 3 wherein: the side surface of the second cylinder body is communicated with the feeding port, and the bracket is arranged in the second cylinder body and positioned at the proximal end of the feeding port.

5. A pneumatic conveying and routing tank as claimed in claim 3 wherein: the first air inlet is annularly arranged at the proximal end of the first barrel.

6. A pneumatic conveying and routing tank as claimed in claim 3 wherein: the second air inlet is formed in the far end of the sealing head.

7. The pneumatic conveying and routing tank of claim 6, wherein: the distal end of the cone is provided with a fluidization plate, and the fluidization plate is connected with the inner wall of the cone through a supporting block.

8. A pneumatic conveying and routing tank as claimed in claim 7 wherein: one end of the discharging pipe penetrates through the side face of the cone, and the other end of the discharging pipe penetrates through the fluidization plate and is aligned above the second air inlet.

9. A pneumatic conveying and routing tank as claimed in claim 3 wherein: at least three supporting feet are arranged on the outer side of the cone.

10. A pneumatic conveying and routing tank as claimed in claim 3 wherein: and a feed valve is further arranged between the discharge port and the feed port.