SU996869A1

SU996869A1 - Powder batcher

Info

Publication number: SU996869A1
Application number: SU802933134A
Authority: SU
Inventors: Юрий Алексеевич Репкин; Вадим Алексеевич Самсонов
Original assignee: Московский Ордена Трудового Красного Знамени Институт Химического Машиностроения
Priority date: 1980-05-26
Filing date: 1980-05-26
Publication date: 1983-02-15

Description

(54) ДОЗАТОР ПОРОгаКА(54) SLEEP DISPENSER

Изобретение относитс к устройствам дл дозировани сыпучих материалов в различные технологические устройства, аболее конкретно к устройствам дл дозир-овани подачи.порошков в установки плазменного напылени тугоплавких материалов на издели , а также дл подачи флюсов .при сварочных.работах.The invention relates to devices for dispensing bulk materials into various technological devices, and more specifically to devices for dispensing feed powders into plasma spraying plants for refractory materials on the product, as well as for supplying fluxes during welding.

Известен дозатор, содержащий горизонтальную тарель с канавкой, эксцентрично расположенный над тарелью бункер и скребок дл удалени материала из канавки Cl.A dispenser is known which contains a horizontal grooved plate, an hopper eccentrically located above the plate and a scraper for removing material from the groove Cl.

Недостатком дозатора вл етс зависимость расхода порошка от его уровн в бункере и неравномерность движени порошка по скребку /при малых расходах.The disadvantage of the dispenser is the dependence of the powder flow rate on its level in the hopper and the uneven movement of the powder along the scraper / at low flow rates.

Наиболее близким к предложенному по технической сущности и достигаемому результату вл етс мйкропйтатель дл -сыпучих,и порошкообразных материалов, содержащий бункер, транспортирующее устройство, выполненное, в. виде трубы, установленной с возможностью вращени на. опоре, смесительную камеру с разгрузочной трубкой, причем на внутренней поверхности трубы транспортийующего устройстваThe closest to the proposed technical essence and the achieved result is an ejector for bulk materials and powder materials containing a hopper, a transport device, made in. the form of a pipe mounted rotatably on. support, mixing chamber with discharge tube, and on the inner surface of the pipe transporting device

закреплены лопатки, а сама труба снабжена отверстием да входа порошка из бункера, при этом разгрузочна трубка снабжена наклонным пазом, отсекающим излишки .поступающего на нее порс ика С2 .the blades are fixed, and the pipe itself is provided with a hole and a powder inlet from the hopper, while the discharge tube is equipped with an inclined groove, which cuts off the excess C2 penetrating it.

Недостатком известного устройст.ва вл етс высока чувствительность расхода порошка к отклонению оси вра10 щени бункера от горизонтального положени .. .A disadvantage of the known device is the high sensitivity of the powder consumption to the deviation of the axis of rotation of the hopper from the horizontal position.

Цель изобретени - обеспечение стабильности расхода порошка при от15 клонении оси вращени транспортирующего устройства от горизонтального положени .The purpose of the invention is to ensure the stability of the powder consumption when the axis of rotation of the conveying device is deviated from a horizontal position from 15 degrees.

Указанна цель достигаетс тем, что в дозаторе порошка в одной из This goal is achieved by the fact that in the powder dispenser in one of

20 цапф опоры выполнено расположенное в вертикальн.ой плоскости наклонное отверстие, в котором герметизирована уплотнительными элементами и закреплена смесительна камера, верхн The 20 pins of the support are made in a vertical plane, an inclined opening in which is sealed with sealing elements and a mixing chamber is fixed, the upper

25 которой размещена -под верхней частью кольцевой канавки втулки.25 which is located under the upper part of the annular groove of the sleeve.

Втулка выполнена объемной с элементами креплени .The sleeve is volumetric with fasteners.

Claims

The drawing shows a p30 dispenser, longitudinal section. The powder dispenser contains a bunker 1 transporting device, made in the form of a pipe 2, mounted rotatably on a support 3, a mixing chamber 4 with discharge and air pipelines 5 and 6, respectively. A sleeve 7 with an annular groove is fixed on the inner surface of the pipe 2, and the pipe 4 itself is provided with a hole for the powder inlet from the hopper and an inclined ledge 8 for cutting off the powder in the annular groove of the sleeve 7. A sloping orifice located in a vertical plane in which the sealing element 9 is sealed and the mixing chamber 4 is fixed, the upper part of which is placed under the upper part of the annular groove of the sleeve 7, which is made removable with fastening elements. The dosing unit works as follows. The bulk material is loaded into the hopper 1, and the latter is driven into rotation. The bulk material enters pipe 2 and moves along it towards sleeve 7, as a result of which its annular groove is filled with powder. The powder is transported upwardly by the annular groove of the sleeve 7, reaches an inclined ledge 8, which cuts off the excess powder and returns to. pipe 2. The powder remaining in the annular groove of sleeve 7, due to adhesion forces and formed by step 8, transfers transport further to the top and reaches the inlet of the mixing chamber 4, into which it is poured under the influence of gravity or scraper (in the drawing shown). The powder is picked up by the gas flow entering the mixing chamber 4 through the air duct 6, and through the discharge duct 5 enters the corresponding process unit. The stagnation zones and compaction of the powder are eliminated in the dosing unit thanks to the fact that the inclined ledge 8 is made with a sharp edge. The use of the invention stabilizes the flow rate of the porsche when the axis of rotation of the transport device deviates from the horizontal position by an angle not exceeding the angle of repose of the dispensed poroil. . Claim 1. Powder dispenser comprising a hopper, a transport device made in the form of a pipe mounted rotatably on a support, a mixing chamber with discharge and air pipelines, the sleeve with an annular groove fixed on the internal surface of the pipe transporting device the tube itself is provided with a hole for the entrance of the powder from the hopper and an inclined ledge for cutting off the powder in the annular groove of the sleeve, characterized in that, in order to ensure a stable flow of powder When the rotational axis deviation tiruyuschego transportation device from the horizontal position, it is made in a vertical plane arranged inclined in one Trunnion support. an opening in which the sealing elements are sealed and a mixing chamber is fixed, the upper part of which is located under the upper part of the annular groove of the sleeve. 2. A dispenser according to claim 1, in contrast to the fact that, in order to be able to control the flow rate of the dosed powder, the sleeve is made removable with fastening elements. Sources of information taken into account during the examination 1. USSR author's certificate No. 315043, cl. G 01 F 11/18, 1971.

2. USSR author's certificate number 685917, cl. G 01 F 11/24, 1979 (prototype) ..

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