CN216583009U

CN216583009U - Improved pneumatic conveying system

Info

Publication number: CN216583009U
Application number: CN202122134364.7U
Authority: CN
Inventors: 董兴红; 兰超; 周文; 李博; 阮才纯; 董佳豪; 寇军; 龙威
Original assignee: Guangdong Guangqing Metal Technology Co Ltd
Current assignee: Guangdong Guangqing Metal Technology Co Ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-05-24
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses an improved pneumatic conveying system, and relates to the field of pneumatic conveying. Comprises a powder ash bin, a compressed air tank and a blowing-assisting valve, wherein the bottom end of the powder ash bin is fixedly connected with a feeding pipe, the middle part of the feeding pipe is provided with a feeding valve, the bottom end of the feeding valve is provided with a flange pipe, the bottom end of the flange pipe is provided with a bin type pump, the side surfaces of the powder ash bin and the bin type pump are both fixedly connected with an exhaust pipe, the side surface of the compressed air tank is fixedly connected with a discharge pipe and a blowing-assisting pipe, one end of the blowing-assisting pipe is fixedly connected with the side surface of the discharge pipe, the side surface of the discharge pipe is provided with a main air inlet valve, the blowing-assisting valve is arranged on the side surface of the blowing-assisting pipe, the utility model discloses an utilize the design of compressed air jar and main admission valve, can strengthen the powder ash mobility through mutually supporting of main admission valve and compressed air jar, it is poor to have solved the powder ash mobility, and the problem of ash is not gone down to the storehouse formula pump, has solved the problem that transportation process easily appears stifled pipe, has improved conveying efficiency, and the accumulative total of weighing is stable, the statistics of being convenient for.

Description

Improved pneumatic conveying system

Technical Field

The utility model relates to the technical field of pneumatic transmission, in particular to an improved pneumatic transmission system.

Background

The finished product produced by the lime kiln contains a part of powder ash with the thickness less than or equal to 3mm, the part of the product is conveyed and transported in a pneumatic conveying mode, the pneumatic conveying is also called airflow conveying, granular materials are conveyed in an airtight pipeline along the airflow direction by utilizing the energy of airflow, the pneumatic conveying device is a specific application of a fluidization technology, and the pneumatic conveying device is simple in structure and convenient to operate and can be used for horizontal, vertical or inclined conveying.

In the existing pneumatic conveying mode, when the distance is longer in the conveying process, the problem of pipe blockage is easy to occur; due to the poor flowability of the powder ash, the powder ash cannot fall in the bin pump, so that the secondary feeding causes excessive loading in the cavity of the bin pump, the error of a weighing module is large, the conveying weight is difficult to count, the failure rate in the conveying process is high, the accumulation is inaccurate, and the conveying efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model discloses an improved pneumatic transmission system to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: an improved pneumatic conveying system comprising:

the bottom end of the powder bin is fixedly connected with a feeding pipe, the middle part of the feeding pipe is provided with a feeding valve, the bottom end of the feeding valve is provided with a flange pipe, and the bottom end of the flange pipe is provided with a bin pump;

the side surface of the compressed air tank is fixedly connected with a discharge pipe and an auxiliary blowing pipe, one end of the auxiliary blowing pipe is fixedly connected with the side surface of the discharge pipe, and the side surface of the discharge pipe is provided with a main air inlet valve;

and the blowing assisting valve is arranged on the side surface of the blowing assisting pipe.

Preferably, the side surfaces of the ash bin and the bin pump are fixedly connected with exhaust pipes, and exhaust valves are installed in the middle of the exhaust pipes.

Preferably, a plurality of internal thread holes are formed in the top end of the flange pipe, and a plurality of through holes are formed in the bottom end of the flange pipe.

Preferably, the two ends of the flange pipe are fixedly provided with annular grooves, and a sealing gasket is sleeved inside the annular grooves.

Preferably, the bottom fixedly connected with conveyer pipe of storehouse formula pump, the bottom of conveyer pipe and the side fixed connection of discharging pipe, the mid-mounting of conveyer pipe has the delivery valve.

Preferably, a discharge valve is installed in the middle of the discharge pipe, and an intelligent pressure transmission is installed on the side surface of the discharge pipe.

The utility model discloses an improved pneumatic transmission system, which has the following beneficial effects:

1. the utility model discloses an utilize the design of compressed air jar and main admission valve, can strengthen the powder ash mobility through mutually supporting of main admission valve and compressed air jar, carry out the punching press in advance to the inside of air compression jar and discharging pipe through main admission valve earlier during the use, then open the bleeder valve respectively again, help blow valve and delivery valve, make the powder ash flow out along the direction of air current along the discharging pipe inner wall, and then solved the powder ash mobility poor, the problem of ash is not gone down to the storehouse pump, the problem of transportation process stifled pipe easily appears has been solved, the conveying efficiency is improved, the accumulative stability of weighing, be convenient for make statistics of.

2. The utility model discloses an utilize the design of helping the blow valve, arrange stifled through helping the pipeline that the blow valve can block up, when meetting the pipe blockage, all valves can be closed, open when arranging stifled and help the blow valve, pressurize the pipeline, when pressure reaches 400KPa, close and help the blow valve, open discharge valve again, the feed valve carries out reverse transport and arranges stifled, and then conveniently handles the pipe blockage problem, and the problem of ash is not gone down to the bin pump has improved conveying efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of a flange pipe and a sealing gasket according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.

In the figure: 1. a fly ash bin; 2. a bin pump; 3. an exhaust valve; 4. a compressed air tank; 5. a main intake valve; 6. a blow-assist valve; 7. a discharge valve; 8. a pressure smart transmission; 9. a discharge pipe; 10. a blowing assisting pipe; 11. a feed valve; 12. a flange pipe; 1201. an annular groove; 1202. a through hole; 1203. an internally threaded bore; 13. an exhaust pipe; 14. a delivery valve; 15. and a gasket.

Detailed Description

The embodiment of the utility model discloses an improved pneumatic transmission system, which comprises the following components as shown in figures 1-3:

the device comprises a powder ash bin 1, wherein the bottom end of the powder ash bin 1 is fixedly connected with a feeding pipe, the middle part of the feeding pipe is provided with a feeding valve 11, the powder ash can be prevented from flowing into a bin type pump 2 along with the feeding pipe when being crushed in the powder ash bin 1 through the feeding valve 11, the quantity of the powder ash entering the bin type pump 2 from the powder ash in the powder ash bin 1 can be controlled, the bottom end of the feeding valve 11 is provided with a flange pipe 12 through a fastening bolt, the bottom end of the flange pipe 12 is provided with the bin type pump 2, and the bottom end of the flange pipe 12 is fixed at the top end of the bin type pump 2 through the fastening bolt;

the equal fixedly connected with blast pipe 13 in side of lime storehouse 1 and storehouse formula pump 2, the mid-mounting of blast pipe 13 has discharge valve 3, conveniently arranges stifled to the pipeline inside through discharge valve 3, makes the inside lime of pipeline enter into the inside in lime storehouse 1.

A plurality of internal thread holes 1203 have been seted up on the top of flange pipe 12, a plurality of through-holes 1202 have been seted up with the corresponding position in top of flange pipe 12 to the bottom of inlet pipe, through-hole 1202 and internal thread hole 1203 correspond to each other, be convenient for fixed mounting flange pipe 12, a plurality of through-holes 1202 have been seted up to the bottom of flange pipe 12, the corresponding through-hole 1202 of a plurality of internal thread holes 1203 has been seted up with the corresponding position in flange pipe 12 bottom in the top of storehouse pump 2, it makes things convenient for mounting flange pipe 12 to mutually support through-hole 1202 and internal thread hole 1203.

Annular groove 1201 has all been fixed to the both ends of flange pipe 12 and has been seted up, the inside cover of annular groove 1201 is equipped with sealed pad 15, sealed pad 15 laminates with the inside of annular groove 1201 each other, the convenience is pre-installed flange pipe 12, sealed pad 15 appears causing the ash to spill from the bottom of flange pipe 12 and inlet pipe and the top junction of storehouse formula pump 2 when preventing to install flange pipe 12, flange pipe 12 adopts the softwood preparation, convenient change sealed pad 15, avoid influencing the pump body simultaneously and weigh.

The device comprises a compressed air tank 4, wherein a discharge pipe 9 and an auxiliary blowing pipe 10 are fixedly connected to the side surface of the compressed air tank 4, one end of the auxiliary blowing pipe 10 is fixedly connected to the side surface of the discharge pipe 9, a main air inlet valve 5 is mounted on the side surface of the discharge pipe 9, the interior of the compressed air tank 4 and the interior of the discharge pipe 9 can be pre-stamped through the main air inlet valve 5 for 3 seconds, the flow rate of powder ash can be further enhanced, and the phenomenon of pipe blockage is avoided;

the bottom fixedly connected with conveyer pipe of storehouse formula pump 2, the bottom of conveyer pipe and the side fixed connection of discharging pipe 9, the mid-mounting of conveyer pipe has delivery valve 14, can close the inside of storehouse formula pump 2 and the inside intercommunication of discharging pipe 9 through delivery valve 14, makes things convenient for main air inlet valve 5 to pressurize inside the compressed air jar 4, and then strengthens the velocity of flow of powder ash.

Discharge pipe 9's mid-mounting has bleeder valve 7, seal up the pipeline through 7 progresses of bleeder valve, when carrying the ash, be convenient for pressurize main air intake valve 5 the inside of compressed air tank 4, when meetting the pipeline and block up, it arranges stifled to help blow valve 6 to the pipeline to be convenient for, discharge pipe 9's side-mounting has pressure intelligent transmission 8, intelligent pressure transmission comprises intelligent sensor and intelligent electronic board two parts, the intelligent sensor part includes: capacitive sensor, measurement diaphragm detection circuitry, temperature sensor and temperature compensation circuit etc. constitute, and intelligence electronic board part includes: the microcomputer controller and the peripheral circuit, and the conversion from the pressure signal to 4-20 mAdc is completed.

The blowing assisting valve 6 can empty the residual dust in the pipeline when the dust is conveyed through the blowing assisting valve 6, the blowing assisting valve 6 is installed on the side face of the blowing assisting pipe 10, the blowing assisting valve 6 can block the pipeline, when the problem of pipe blockage is encountered in the process of conveying the dust, all valves can be closed, a system gives an alarm, the blockage of the pipeline is removed through a blockage removing process, the blowing assisting valve 6 is firstly opened to pressurize the inside of the pipeline and the compressed air tank 4, when the pressure reaches 400KPa, the blowing assisting valve 6 is closed, the exhaust valve 3 is opened again, the feed valve 11 is used for reverse conveying and blocking removal, after the pressure of the pipeline is reduced to 5KPa, the feed valve 11 and the exhaust valve 3 are closed, the above operation steps are repeated until the pressure of the blowing assisting valve 6 is opened and does not rise and is stabilized at about 30KPa, and the blockage removal of the pipeline is finished.

The working principle is as follows: when the powder ash needs to be conveyed, an operator firstly opens the feeding valve 11 to enable the powder ash in the powder ash bin 1 to enter the bin type pump 2, and the powder ash in the powder ash bin 1 enters the bin type pump 2 through the feeding valve 11 and the flange pipe 12 until the charging to the interior of the bin type pump 2 is completed;

then, the main air inlet valve 5 is opened to perform pre-punching on the compressed air tank 4 and the discharge pipe 9, and after the pre-punching is finished, then the discharge valve 7, the blowing-assisting valve 6 and the delivery valve 14 are opened in sequence, when the delivery pressure in the pipeline is less than or equal to 50KPA, the powder ash in the bin pump 2 enters the discharging pipe 9 through the conveying pipe, the powder ash in the discharging pipe 9 flows to the other end of the discharging pipe 9 along with the direction of the air flow until the powder ash is conveyed, then the main air inlet valve 5 is closed, the inside of the discharge pipe 9 is purged through the blowing-assistant valve 6, after the conveying pipe is purged for 10 seconds, the powder dust in the discharging pipe 9 is emptied until the powder dust in the discharging pipe 9 is purged, then the blowing-assisting valve 6 and the discharging valve 7 are closed again, then the conveying amount of the powder ash is accumulated again, and after the accumulation is completed, the operation is repeated again to carry out the next round of powder ash conveying.

When the conveying pressure inside the pipeline is greater than or equal to 400KPA, the pipeline is blocked, all valves are closed immediately, the system gives an alarm, then the pipeline is drained, then an operator opens the blow-assisting valve 6 firstly to pressurize the pipeline and the inside of the compressed air tank 4, when the pressure reaches 400KPa, the blow-assisting valve 6 is closed, then the conveying valve 14, the exhaust valve 3 and the feed valve 11 are opened to carry out reverse conveying and blockage removal, so that the powder ash in the pipeline enters the powder ash bin 1 through the bin pump 2, the exhaust valve 3, the flange pipe 12 and the feed valve 11, the exhaust valve 3 and the conveying valve 14 are closed after the pressure inside the pipeline is reduced to 5KPa, and then the above operation steps are repeated until the pressure inside the pipeline, which is opened by the blow-assisting valve 6, does not rise and is stabilized at about 30KPa, which indicates that the pipeline blockage removal is finished.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An improved pneumatic conveying system, comprising:

the device comprises a dust bin (1), wherein the bottom end of the dust bin (1) is fixedly connected with a feeding pipe, the middle part of the feeding pipe is provided with a feeding valve (11), the bottom end of the feeding valve (11) is provided with a flange pipe (12), and the bottom end of the flange pipe (12) is provided with a bin type pump (2);

the device comprises a compressed air tank (4), wherein a discharge pipe (9) and an auxiliary blowing pipe (10) are fixedly connected to the side surface of the compressed air tank (4), one end of the auxiliary blowing pipe (10) is fixedly connected with the side surface of the discharge pipe (9), and a main air inlet valve (5) is installed on the side surface of the discharge pipe (9);

and the blowing assisting valve (6), wherein the blowing assisting valve (6) is arranged on the side surface of the blowing assisting pipe (10).

2. An improved pneumatic conveying system according to claim 1, characterised in that: the equal fixedly connected with blast pipe (13) in side of ash storehouse (1) and storehouse formula pump (2), the mid-mounting of blast pipe (13) has discharge valve (3).

3. The improved pneumatic conveying system according to claim 1, wherein: the top end of the flange pipe (12) is provided with a plurality of internal thread holes (1203), and the bottom end of the flange pipe (12) is provided with a plurality of through holes (1202).

4. An improved pneumatic conveying system according to claim 1, characterised in that: annular groove (1201) have all been fixed to the both ends of flange pipe (12) and have been seted up, the inside cover of annular groove (1201) is equipped with sealed pad (15).

5. The improved pneumatic conveying system according to claim 1, wherein: the bottom fixedly connected with conveyer pipe of storehouse formula pump (2), the bottom of conveyer pipe and the side fixed connection of discharging pipe (9), the mid-mounting of conveyer pipe has delivery valve (14).

6. An improved pneumatic conveying system according to claim 1, characterised in that: the middle part of discharging pipe (9) is installed bleeder valve (7), pressure intelligence derailleur (8) are installed to the side of discharging pipe (9).