CN201647661U

CN201647661U - Powder conveying device

Info

Publication number: CN201647661U
Application number: CN2010200625503U
Authority: CN
Inventors: 孙兴杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-20
Filing date: 2010-01-20
Publication date: 2010-11-24
Anticipated expiration: 2020-01-20

Abstract

The utility model belongs to the field of powder conveyance, in particular to a conveying device, which has high efficiency, can effectively prevent powder blockage and comprises a conveying pipeline, wherein a feed inlet and an air inlet are drilled on the conveying pipeline, the air inlet is connected with an air compressor through an air pipe, an air seal is respectively arranged in the conveying pipelines at both sides of the air inlet, an oil seal is respectively arranged at both sides of the sealing space of the air seal, and a spiral main shaft is installed inside the conveying pipeline and connected with the conveying pipeline through a rolling bearing. The utility model is characterized in that the spiral main shaft is hollow, a ventilation conduit is installed inside, one end of the ventilation conduit is positioned between the air seals, more than one air inlet hole is drilled, and the other end extends out of the tail of the spiral main shaft. The utility model has the advantages that the conveying device has low cost and concise operation, is not limited by distances and height and can effectively prevent the powder blockage.

Description

A kind of powder feedway

[technical field]

The utility model belongs to the powder transportation art, more particularly, relates to efficiently a kind ofly, can effectively prevent the feedway that powder stops up.

[background technology]

Normally used powder feedway such as cementing tank transport trolley, it need add strong gas pressure earlier in complete leak free jar when the transportation powder makes the powder liquid stateization, flows by pipeline afterwards and transports, and the cost of loading and unloading is too high; The another kind of conveyor screw that often uses, it all has limitation, and can not change at any time in the distance of carrying on height.

[utility model content]

The utility model is too high at above-mentioned shipping and delivery cost of the prior art, and transport efficiency is low, and fed distance highly all has circumscribed technical matters, provides efficiently a kind of, can long-distance transportation powder and the difficult powder feedway that obstruction takes place.

The utility model solves the problems of the technologies described above by the following technical programs:

A kind of powder feedway, comprise feeding pipe, have inlet point and admission port on the described feeding pipe, described admission port is connected with air compressor by tracheae, in the feeding pipe of the both sides of described admission port, be provided with sealing gland, the both sides of sealing gland seal cavity are provided with oil sealing, screw spindle is installed in described feeding pipe inside, is connected by antifriction-bearing box with feeding pipe, it is characterized in that described screw spindle is a hollow, in ventilation duct is housed, ventilation duct one end has more than one induction opening between sealing gland, the other end stretches out from the afterbody of screw spindle.

Principle of the present utility model is: after powder is entered by inlet point, rotation by screw spindle is fed forward, the air compressor gas supplied enters screw spindle in-to-in ventilation duct by admission port, when blowing out, plays catheter tail the effect of dredging, the powder of alluvial is blown forward, drive transportation, because gas vent is at the tail end of live spindle, powder alluvial between air guide port and the spiral leaf, so can not refluxing, gas do not influence the transportation of the powder of inlet point, and the leak free effect also can be played by sealing gland and oil sealing are set in the two ends of admission port, effectively prevents the influence of leaking gas inlet point being produced.

Advantage of the present utility model is: cost is low, and operation is succinct, is not subjected to the restriction of distance and variation in altitude, can effectively prevent the obstruction of powder.

[description of drawings]

The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the structural representation of the powder feedway of the utility model embodiment,

Fig. 2 is the structural representation of the feeding pipe of the utility model embodiment.

[specific embodiment]

With reference to Fig. 1-2, the utility model comprises feeding pipe 1, its specific structural features is: have inlet point 2 and admission port 3 on the described feeding pipe 1, described admission port 3 is connected with air compressor 5 by tracheae 4, in the feeding pipe of described admission port 3 both sides, be provided with sealing gland 6, the both sides of sealing gland seal cavity are provided with oil sealing 7, be used to keep leak tightness, make gas directly enter screw spindle in-to-in ventilation duct 10, screw spindle 8 is installed in described feeding pipe 1 inside, by electrical motor 11 driven rotary, be connected by antifriction-bearing box 9 with feeding pipe 1, it is characterized in that described screw spindle 8 is a hollow, in ventilation duct 10 is housed, ventilation duct 10 1 ends are between sealing gland 6, have more than one induction opening, the other end stretches out from the afterbody of screw spindle.Powder enters in the pipeline by the rotation drive of screw spindle, carries under the dredging of main shaft tail end gas, finally enters feed bin 12, and the air pressure of the air compressor that the utility model uses preferably remains on below the 1Pa.

Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.

Claims

1. powder feedway, comprise feeding pipe, have inlet point and admission port on the described feeding pipe, described admission port is connected with air compressor by tracheae, in the feeding pipe of the both sides of described admission port, be provided with sealing gland, the both sides of sealing gland seal cavity are provided with oil sealing, screw spindle is installed in described feeding pipe inside, is connected by antifriction-bearing box with feeding pipe, it is characterized in that described screw spindle is a hollow, in ventilation duct is housed, ventilation duct one end has more than one induction opening between sealing gland, the other end stretches out from the afterbody of screw spindle.