CN-115574563-A - Metal powder rotary drying device and using method thereof

CN115574563ACN 115574563 ACN115574563 ACN 115574563ACN-115574563-A

Abstract

The invention discloses a metal powder rotary drying device and a using method thereof, and discloses a device which drives a drying outer cylinder to rotate through a rotating mechanism, and simultaneously blows hot air into the drying outer cylinder through an air inlet pipe in cooperation with a drying inner cylinder to uniformly dry metal powder in the drying outer cylinder, so that the metal powder can be prevented from being accumulated to cause uneven drying of the metal powder. Its characterized in that includes rotation support mechanism, sets up the drying mechanism on rotation support mechanism and the rotary mechanism who is connected with drying mechanism, rotary mechanism drives drying mechanism rotatory, rotation support mechanism is used for rotating support drying mechanism, drying mechanism is used for carrying out rotatory stoving to the metal powder in it, rotary mechanism comprises stoving urceolus, rotatory air outlet cylinder, stoving urceolus lid, pan feeding mouth, broken tooth, venthole, support cover, double-deck filter cloth, stoving logical groove, intake pipe, stoving inner tube, connecting pipe and the logical groove of giving vent to anger.

Inventors

LIU SHUANG
LI LI
WEI FANG
YANG DEZONG
Fu Xuanjian
Zhi Wuxiu
JIANG CHEN
WANG HAOZHOU

Assignees

JIANGSU VILORY ADVANCED MATERIALS TECH CO LTD

Dates

Publication Date: 20230106
Application Date: 20221013
Priority Date: 20221013

Claims (10)

1. The utility model provides a rotatory drying device of metal powder, includes rotation support mechanism, sets up the rotary mechanism who dries the mechanism and be connected with drying mechanism on rotation support mechanism, its characterized in that: the drying device comprises a rotating mechanism, a drying mechanism, a rotating support mechanism, a drying mechanism and a drying device, wherein the rotating mechanism drives the drying mechanism to rotate, the drying mechanism is used for rotatably supporting the drying mechanism and rotatably drying metal powder in the drying mechanism, the rotating mechanism consists of a drying outer barrel, a rotating air outlet barrel, a drying outer barrel cover, a feeding port, crushing teeth, air outlet holes, a support sleeve, double-layer filter cloth, a drying through groove, an air inlet pipe, a drying inner barrel, a connecting pipe and an air outlet through groove, the drying outer barrel is arranged on a group of rotating support mechanisms, a group of rotating support mechanisms consists of four rotating support mechanisms, the four rotating support mechanisms are distributed in a matrix manner, the barrel bottom of the drying outer barrel cover is of an open structure, the drying outer barrel cover is detachably arranged at the barrel port of the drying outer barrel, the drying outer barrel cover is provided with the feeding port, the feeding port is close to the edge of the drying outer barrel cover, the rotating air outlet barrel is arranged on the drying outer barrel, the rotary air outlet cylinder opening is connected with the cylinder bottom of the drying outer cylinder, the rotary mechanism is connected with the cylinder bottom of the rotary air outlet cylinder, a set of air outlet holes are formed in the cylinder bottom of the rotary air outlet cylinder, the air outlet holes consist of a plurality of air outlet holes, the support sleeve is arranged in the rotary air outlet cylinder and is positioned in the middle of the cylinder bottom of the rotary air outlet cylinder, a plurality of sets of crushing teeth are arranged on the inner wall of the drying outer cylinder, one set of crushing teeth consist of a plurality of crushing teeth, a cloth filter frame is arranged in the drying outer cylinder, double-layer filter cloth is arranged in the cloth filter frame, the cloth filter frame is positioned at the cylinder bottom of the drying outer cylinder, an air inlet pipe is arranged at one end of the drying inner cylinder, the drying inner cylinder is positioned in the drying outer cylinder, one end of the air inlet pipe is communicated with the drying inner cylinder, the other end of the air inlet pipe penetrates through the middle of the drying outer cylinder cover to extend outwards, the air inlet pipe is rotatably connected with the drying outer cylinder cover through a rotating bearing, and a connecting pipe is arranged at the other end of the drying inner cylinder, one end of the connecting pipe is communicated with the drying inner barrel, the other end of the connecting pipe penetrates through the double-layer filter cloth and extends into the supporting sleeve, the connecting pipe is rotatably connected with the supporting sleeve through a rotating bearing, a plurality of rows of drying through grooves are formed in the drying inner barrel, one row of drying through grooves are formed by a plurality of groups of drying through grooves, one group of drying through grooves are formed by two drying through grooves, and filter cloth is arranged at the opening of each drying through groove.
2. The rotary metal powder drying device as claimed in claim 1, wherein the drying through grooves are replaced by air outlet through grooves, a plurality of rows of air outlet through grooves are formed in the drying inner cylinder, one row of air outlet through grooves are formed by a plurality of air outlet through grooves, one group of air outlet through grooves are formed by at least three air outlet through grooves, each air outlet through groove is of an arc-shaped structure, the plurality of rows of air outlet through grooves are distributed equidistantly along the axial direction of the drying inner cylinder, the plurality of groups of air outlet through grooves in the same row are distributed equidistantly along the circumferential direction of the drying inner cylinder, at least three air outlet through grooves in the same group are arranged equidistantly along the clockwise direction, and filter cloth is arranged at the openings of the air outlet through grooves.
3. The rotary dryer for metal powder as claimed in claim 1, wherein the diameter of said drying outer drum is gradually increased from the bottom of the drum to two thirds thereof and gradually decreased from two thirds thereof to the opening of the drum.
4. The rotary drier for metal powder as claimed in claim 1, wherein the diameter of the rotary air outlet cylinder is gradually increased from the cylinder mouth to the cylinder bottom.
5. The rotary drying device for metal powder as claimed in claim 1, wherein the plurality of air outlets in the same group are distributed along the circumference of the bottom of the rotary air outlet cylinder at equal intervals, the air outlets are close to the bottom edge of the rotary air outlet cylinder, and the air outlets are in one or more of a circular, diamond, arc, rectangular, oval, regular hexagon and triangular structure.
6. The rotary dryer for metal powder as claimed in claim 1, wherein a plurality of said crushing teeth are circumferentially and equidistantly distributed along the inner wall of said drying outer cylinder, a plurality of said crushing teeth in the same group are axially and equidistantly distributed along the inner wall of said drying outer cylinder, and said crushing teeth are in a pyramid structure.
7. The rotary dryer for metal powder as claimed in claim 1, wherein the diameter of the inner drying drum is gradually reduced from the middle to the two ends, and the central line of the inner drying drum and the central line of the outer drying drum are on the same straight line.
8. The rotary drying device for metal powder as claimed in claim 1, wherein the drying through slots are arc-shaped, the drying through slots are distributed along the axial direction of the drying inner barrel at equal intervals, multiple groups of drying through slots are distributed along the circumferential direction of the drying inner barrel at equal intervals in the same row, and two drying through slots are distributed symmetrically in opposite directions in the same group.
9. The use method of the metal powder rotary drying device is characterized in that: the method specifically comprises the following steps: 1) Pouring the extruded and dehydrated massive metal powder into the drying outer barrel from the feeding port, and blocking the feeding port by using a sealing plug; 2) Starting the rotating mechanism, and driving the rotating air outlet cylinder and the drying outer cylinder to synchronously rotate by the rotating mechanism; 3) In the rotating process, the blocky metal powder also rolls in the drying outer cylinder along with the blocky metal powder, and is crushed into fine metal powder blocks under the action of crushing teeth on the inner wall of the drying outer cylinder; 4) The air inlet pipe is communicated with the air heater, the air heater is started while the drying outer barrel rotates, hot air is introduced into the drying inner barrel through the air inlet pipe, and the hot air is blown to the drying outer barrel from the drying inner barrel under the turbulence effect of the drying through grooves to dry and dehydrate the metal powder block; 5) The metal powder blocks are gradually loosened under the hot air drying to form granular metal powder, and because the metal powder is always in a rolling state, gaps among the metal powder are always larger, and the metal powder can be better and uniformly dried by the hot air.
10. The use method of the metal powder rotary drying device according to claim 9, wherein after the hot air is dried for a period of time, the metal powder is intermittently blown, so that the metal powder always adsorbed on the inner wall of the drying outer cylinder by the wind force naturally falls under the centrifugal force, and the hot air can completely dry the metal powder.

Description

Metal powder rotary drying device and using method thereof Technical Field The invention discloses a metal powder rotary drying device and a using method thereof, relates to a device capable of carrying out rotary drying on metal powder and a using method thereof, and belongs to the technical field of metal powder preparation. Background In the metal powder preparation process, at first obtain the fluid that metal powder and water mix through grinding process, then carry out dehydration to the metal powder fluid again, dehydration at first carries out the extrusion dehydration to the fluid, form the cubic powder that gathers together and have certain hardness, then put into drying device with it and dry thoroughly and dewater, current metal powder drying device is after putting cubic metal powder into the stoving container, blow hot-blast stoving to it again, in the drying process, cubic metal powder loosens into graininess metal powder gradually, under the extrusion of gravity, metal powder can pile up in the stoving container, the space between the metal powder reduces, make hot-blast metal powder through the top layer very difficult dry thoroughly to inside metal powder, it is inhomogeneous easily to lead to the metal powder to dry. Publication number CN109341194A discloses a powder drying device of metal powder piece, including the extension board, the extension board lower extreme is equipped with the landing leg, extension board upper end middle part is equipped with the stoving case, stoving case lower extreme is equipped with the powder hopper that falls, stoving case both sides are equipped with pillar and air heater respectively, stoving case side is equipped with a plurality of ventilation holes, the device is in to metal powder stoving in-process, under the extrusion of gravity, metal powder can pile up in the stoving container, the space between the metal powder reduces, make hot-blast metal powder through the top layer very difficult thoroughly dry to inside, lead to metal powder to dry inhomogeneously easily. Publication number CN215063346U discloses an automatic business turn over material drying bucket of atomizing metal powder stoving, including drying bucket, set up at the inboard material frame of drying bucket, set up the bung at drying bucket inboard, drying bucket's bottom is provided with driving motor, driving motor's top is provided with the lead screw, and this drying bucket is drying the in-process to metal powder, under the extrusion of gravity, metal powder can pile up in the stoving container, and the space between the metal powder reduces for hot-blast metal powder through the top layer is difficult thoroughly dried to inside metal powder, leads to metal powder to dry inhomogeneously easily. Publication number CN113776297a discloses a drying, storing and conveying device for metal powder, which comprises a drying furnace with a feeding port and a discharging port, a feeding device for feeding metal powder materials into the drying furnace from the feeding port, a storing and dedusting device for temporarily storing the metal powder and performing dedusting effect, and a pipeline for communicating the discharging port of the drying furnace with the storing and dedusting device; this equipment is drying the in-process to metal powder, under the extrusion of gravity, metal powder can pile up in drying the container, and the space between the metal powder reduces for hot-blast metal powder through the top layer very hardly carries out thorough drying to inside metal powder, leads to metal powder to dry unevenly easily. Disclosure of Invention In order to improve the situation, the invention provides a metal powder rotary drying device and a using method thereof, and provides a device which drives a drying outer cylinder to rotate through a rotating mechanism, and simultaneously blows hot air into the drying outer cylinder through an air inlet pipe in cooperation with a drying inner cylinder to uniformly dry metal powder in the drying outer cylinder, so that the metal powder can be prevented from being accumulated and being unevenly dried. The invention relates to a metal powder rotary drying device, which is realized by the following steps: the invention relates to a metal powder rotary drying device, which comprises a rotary supporting mechanism, a drying mechanism arranged on the rotary supporting mechanism and a rotating mechanism connected with the drying mechanism, it is characterized in that the rotating mechanism drives the drying mechanism to rotate, the rotating support mechanism is used for rotatably supporting the drying mechanism, the drying mechanism is used for rotatably drying the metal powder in the drying mechanism, the rotary mechanism consists of a drying outer cylinder, a rotary air outlet cylinder, a drying outer cylinder cover, a feeding port, crushing teeth, an air outlet hole, a support sleeve, double-layer filter cloth, a drying through groove, an air inl