CN203428543U

CN203428543U - Elbow with buffer boards for pneumatic conveying pipeline

Info

Publication number: CN203428543U
Application number: CN201320444274.0U
Authority: CN
Inventors: 宣伯民
Original assignee: HANGZHOU YUANSHAN FOOD TECHNOLOGY Co Ltd
Current assignee: HANGZHOU YUANSHAN FOOD TECHNOLOGY Co Ltd
Priority date: 2013-07-22
Filing date: 2013-07-22
Publication date: 2014-02-12
Anticipated expiration: 2023-07-22

Abstract

The utility model discloses an elbow with buffer boards for a pneumatic conveying pipeline, belongs to the technical field of pneumatic conveying pipeline part structures, and aims to overcome the shortcomings of high manufacturing cost, difficulty in replacement and the like of an easy-to-abrade bent pipe made from an abrasion-proof material and having a thickened outer pipe wall in a conventional pneumatic conveying pipeline system. The elbow comprises a bent pipe, wherein at least one short shaft perpendicular to the radius of curvature is arranged outside a curvature arc in the bent pipe; the buffer boards are arranged on the short shaft in a rotating way; spring boards are connected to the tail ends of the buffer boards. The elbow is applied to a bent pipe part of a solid bulk pneumatic-conveying system.

Description

The elbow in Pneumatic conveying pipeline with dash plate

Technical field

The utility model relates to a kind of Pneumatic conveying pipeline block construction technology, particularly relates to the elbow in a kind of Pneumatic conveying pipeline with dash plate.

Background technology

In the process of manufacture of food, from raw-material enter factory to pay unit or between each operation until dispatching from the factory of finished product has a large amount of materials to carry.Along with the raising of level of mechanization, in food processing enterprises, all the various conveying machineries of a large amount of employing complete the conveying tasks of material at present.In field for some bulk cargos such as doing as beans, barley, rice, wheat, melon, carry, the method that much adopts strength to carry, receives good effect.Carrying out air-transport system when design, a very important step is, connection mode between the trend of choose reasonable and layout conveying pipeline and scantling of structure thereof, parts etc., can effectively avoid occurring after place in operation like this latch up phenomenon of pipeline system; To reducing wearing and tearing, the reduction loss of pressure of each parts, the reliability of service, the safety that improve transport efficiency, reduction unit consumption of energy and the raising whole system of feedway have very large benefit simultaneously.Because solid material has larger chiseling property of mill, and by high velocity air, driven in delivery system, there is again very large kinetic energy, very strong for the abrasion action of conveying pipeline and parts.Vitals---the bend pipe in conveying pipeline particularly, the change because the tube wall in its outside wants directing material flow to flow to, is directly head-on subject to the impact of material, and the transducer wall ' s abrasion outside making is very fast, often will change renewal.In order to extend as much as possible the service life of bend pipe, currently used measure is: adopt the high-abrasive materials such as ductile castiron, Rare-earth Elements Treated Nodular Iron, pottery to manufacture bend pipe and outboard tube wall is thickeied to processing.Meanwhile, also brought that bend part manufacturing cost in conveying pipeline increases, body is heavy, change the problems such as difficulty.

Summary of the invention

The purpose of this utility model is to provide the elbow in a kind of Pneumatic conveying pipeline with dash plate, overcome current Pneumatic conveying pipeline system, bend pipe easy to wear is adopted to high-abrasive material manufacture, and the processing method that outboard tube wall is thickeied, the manufacturing cost existing is high, changes the deficiencies such as difficulty.

The utility model is achieved by following technical proposals.

The utility model comprises bend pipe, in described bend pipe, outside and the radius of curvature of curvature circular arc be equipped with at least one minor axis perpendicularly, and dash plate is housed rotationally on described minor axis, at the tail end of described dash plate, connects spring plate is housed.In the technical program, the outside inwall of bend pipe and the way of contact of the material " very stiff and demanding " that flow at high speed is come described in prior art have been changed, but adopt described dash plate to face streams, when not being subject to that streams is impacted or shock pressure is lighter, described dash plate whole plate face under the effect of described spring plate that is loaded on its tail end sticks up from bend pipe outboard tube inwall.When described dash plate is being subject to after the impact of streams, the one, whole plate face is around the outer sideway swivel of bend pipe described in described short axial, and the 2nd, the distortion due to pressurized of plate face.In this course: first described dash plate is dissolved the impact kinetic energy of huge streams in the mode of buffering, alleviated the degree self being worn; Besides the kinetic energy of streams is absorbed, be convenient to streams and change the flow direction with air-flow; Also have, the energy that described dash plate accumulates in rotation and distort process is returned streams with the form of opposition, increases the kinetic energy that streams flows out bend pipe.So the existing effect that self slows down wearing and tearing with buffering method of described dash plate has again the streams of making to change the effect of flow direction.Described dash plate is in when work, is to accept material impact, cushion, and runs up to that such process that rebounds after certain energy pulses repeatedly.

Due to bulk cargo mobile in Pneumatic conveying pipeline, grain size differs, on the way, be all-pervasive, for fear of the fine grained in material, enter the space between inwall outside described dash plate and described bend pipe, described dash plate is lost and cushion mobile space, therefore, when the quantity of described dash plate is greater than one, described dash plate below covers the tail end of dash plate noted earlier, meanwhile, between the tail end of described dash plate not covered by described dash plate below and the inside pipe wall of described bend pipe, deflecting plate is housed.

Against existing technologies, the beneficial effects of the utility model are:

Protected bend pipe not to be worn, extended the service life of bend pipe, described dash plate is simple in structure simultaneously, and replacing is convenient and replacement cost is lower.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model, the A-A cut-away view that Fig. 2 is Fig. 1.In figure: 1, bend pipe, 2, minor axis, 3, dash plate, 4, spring plate, 5, deflecting plate.

The specific embodiment

Below in conjunction with accompanying drawing and the specific embodiment, the utility model will be further described.

In embodiment as shown in the figure, minor axis 2 is 3, correspondingly has 3 block buffering plate 3 dresses thereon.The curvature radian of dash plate 3 should be slightly less than the curvature radian of bend pipe 1 outside tube wall, can make like this bounce of plate face more powerful.Dash plate 3 will be subject to the impact of streams constantly when work, and wearing and tearing are unavoidable, need to often change.Not not rotating of minor axis 2 itself, the junction that its two end is loaded on bend pipe 1 two side walls requires closely knitly not leak out, when exchange buffering plate 3, to carry out dismounting simultaneously, so minor axis 2 can be designed to two ends, stretch out outside the wall of bend pipe 1, and be shaped with bolt in end, install and with nut, fix afterwards.

Claims

1. in a Pneumatic conveying pipeline, there is the elbow of dash plate, comprise bend pipe, it is characterized in that, in described bend pipe, outside and the radius of curvature of curvature circular arc be equipped with at least one minor axis perpendicularly, dash plate is housed rotationally on described minor axis, in the tail end connection of described dash plate, spring plate is housed.

2. in a kind of Pneumatic conveying pipeline according to claim 1, have the elbow of dash plate, it is characterized in that, when the quantity of described dash plate is greater than one, described dash plate below covers the tail end of dash plate noted earlier.

3. in a kind of Pneumatic conveying pipeline according to claim 1 and 2, there is the elbow of dash plate, it is characterized in that, between the tail end of described dash plate not covered by described dash plate below and the inside pipe wall of described bend pipe, deflecting plate is housed.