CN215893172U

CN215893172U - Blade of drying machine

Info

Publication number: CN215893172U
Application number: CN202121974867.9U
Authority: CN
Inventors: 陆坚; 冯鹏; 薛会强
Original assignee: Jiangsu Shengman Drying Equipment Engineering Co ltd
Current assignee: Jiangsu Shengman Drying Equipment Engineering Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-22
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to a dryer paddle, which comprises a hollow paddle, a paddle shaft and a steam shaft, wherein the hollow paddle is arranged along the circumferential direction of the paddle shaft, the steam shaft is arranged in the paddle shaft, radial guide pipes are symmetrically distributed on the paddle shaft, a steam pipe penetrating through the paddle shaft and leading to the hollow paddle is arranged in the radial direction of the steam shaft, one side of the guide pipe, far away from the axis of the paddle shaft, is of a conical structure, the smaller end surface of the conical structure is close to the axis of the paddle shaft, one side of the guide pipe, far away from the axis of the paddle shaft, is provided with a baffle leading to the inside of the hollow paddle, the baffle is arranged on one side of the guide pipe, which is consistent with the rotation direction of the hollow paddle, a jet cover is arranged on one side of the steam pipe, far away from the axis of the steam shaft, and a detachable scraper is arranged on the outer side of the hollow paddle, so that the diversion condensate recovery efficiency, the steam jet uniformity and the scraper utilization rate are improved.

Description

Blade of drying machine

Technical Field

The utility model belongs to the technical field of dryers, and particularly relates to a dryer paddle.

Background

The sludge paddle dryer is a special sludge dryer specially designed for sludge generated by urban sewage treatment plants, printing and dyeing plants, paper mills, electroplating plants, thermal power plants, chemical plants and the like, and solves the problem of sludge trouble.

The utility model discloses a patent number is 201610022577.1 utility model "a hollow paddle desiccator paddle drainage mechanism" includes hollow paddle axle, the axial sets up steam admission house steward in the hollow paddle axle, hollow paddle off-axial welding hollow paddle blade, the epaxial welding steam distribution pipe of hollow paddle, steam distribution pipe intercommunication steam admission house steward and hollow paddle blade, at the epaxial radial water conservancy diversion hole that sets up of hollow paddle, at water conservancy diversion hole welding honeycomb duct, honeycomb duct intercommunication hollow paddle leaf chamber and hollow paddle axle inner chamber, the surface of hollow paddle axle is not stretched out to the one end of honeycomb duct and hollow paddle blade intercommunication, the honeycomb duct extends to the inner chamber of hollow paddle axle with the one end of hollow paddle axle intercommunication, this utility model discloses water conservancy diversion recovery comdenstion water efficiency is general, it is inhomogeneous to spray steam, the scraper blade utilization ratio is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems of providing a drying machine paddle, solving the problems of general efficiency of diversion and recovery of condensed water, uneven steam injection and low utilization rate of a scraper

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model comprises hollow blades, a blade shaft and a steam shaft, wherein the hollow blades are arranged along the circumferential direction of the blade shaft, the steam shaft is arranged in the blade shaft, radial guide pipes are symmetrically distributed on the blade shaft, the steam shaft is radially provided with a steam pipe which penetrates through the blade shaft and leads to the hollow blades, one side of the guide pipe, far away from the axis of the blade shaft, is of a conical structure, the smaller end surface of the conical structure is close to the axis of the blade shaft, one side of the guide pipe, far away from the axis of the blade shaft, is provided with a baffle plate which leads to the inside of the hollow blades, the baffle plate is arranged on one side of the guide pipe, which is consistent with the rotation direction of the hollow blades, one side of the steam pipe, far away from the axis of the steam shaft, is provided with an injection cover, and the outer sides of the hollow blades are provided with detachable scrapers.

Furthermore, a through threaded hole is formed in the scraper, the scraper is connected with the side wall of the paddle through a bolt, and the bolt is inserted into the side wall of the paddle.

Furthermore, the spraying cover is of a conical structure, the section of the conical structure is in a fan shape, and the end with the smaller radius of the steam pipe is close to the spraying cover.

Furthermore, the spraying cover is provided with penetrating spraying holes which are uniformly distributed.

The utility model has the beneficial effects that:

1. the cone-shaped guide pipe can more efficiently recover the condensed water, and the baffle on one side of the guide pipe can effectively stop the condensed water on one side of the guide pipe.

2. The spraying cover at the nozzle of the steam pipe can spray steam from the spraying hole in a uniform and peripheral divergent mode, and loss of partial blades due to overhigh steam temperature is prevented.

3. Can dismantle the desiccator that the scraper blade can be directed against the not equidimension cavity, improve the paddle utilization ratio.

Drawings

The foregoing and other objects, features, and advantages of the utility model will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic view of the structure of the injection hood of the present invention;

FIG. 3 is a schematic view of the structure of the draft tube and baffle of the present invention.

Wherein: 1. a hollow blade; 2. a blade shaft; 3. a steam shaft; 4. a flow guide pipe; 401. a baffle plate; 5. a steam pipe; 501. a spray hood; 502. an injection hole; 6. a squeegee; 7. and (4) bolts.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1, the utility model comprises hollow blades 1, a blade shaft 2 and a steam shaft 3, wherein the hollow blades 1 are arranged along the circumferential direction of the blade shaft 2, the steam shaft 3 is arranged inside the blade shaft 2, draft tubes 4 are symmetrically distributed on the blade shaft 2, and a steam tube 5 penetrating through the blade shaft 2 and leading to the hollow blades 1 is radially arranged on the steam shaft 3.

Referring to fig. 1, the 1 outside of hollow blade is equipped with removable scraper blade 6, effectual drive scraper blade 6 scrapes the attached material on with the desiccator box wall when hollow blade 1 rotates, be equipped with the run-through screw hole on the scraper blade 6, scraper blade 6 and paddle lateral wall lean on bolt 7 to connect, bolt 7 inserts the paddle lateral wall, because desiccator size variation, hollow blade 1 installation back blade top is different to desiccator box inner wall distance, detachable scraper blade 6 can need not to change hollow blade 1 and scrape the attached material by the scraper blade 6 of changing different length, bolt 7 set up effectual fixed scraper blade 6 and hollow blade 1, prevent to break away from.

Specifically, the thickness of the side wall of the hollow blade 1 close to the scraper 6 is larger than the thickness of the other side walls of the blade, the top end of the bolt 7 is inserted into the side wall of the hollow blade 1, the thickened side wall can enable the bolt 7 to be inserted deeper, and the bolt 7 is prevented from falling off.

Referring to fig. 2, a spraying cover 501 is arranged on one side of the steam pipe 5 far away from the axis of the steam shaft 3, a circle of the spraying cover 501 is provided with uniformly distributed spraying holes 502, the spraying cover 501 is of a conical structure, the section of the conical structure is fan-shaped, the radius of one end, close to the steam pipe 5, of the spraying cover 501 is small, the spraying cover 501 at the pipe opening of the steam pipe 5 can spray steam from the spraying holes 502 uniformly and divergently around, and damage to partial blades due to overhigh steam temperature is prevented.

Referring to fig. 3, one side of the draft tube 4, which is far away from the axis of the blade shaft 2, is of a conical structure, the smaller end face of the conical structure is close to the axis of the blade shaft 2, one side of the draft tube 4, which is far away from the axis of the blade shaft 2, is provided with a baffle 401 leading to the inside of the hollow blade 1, and the baffle 401 is installed on one side of the draft tube 4, which is consistent with the rotation direction of the hollow blade 1, so that condensed water is effectively blocked at one end of the draft tube 4, and the condensed water is prevented from flowing in blades due to the centrifugal action of blades of the blades.

The working principle is as follows: wedge-shaped hollow blades are arranged on the paddle shaft 2, steam is generated from the steam shaft 3, is divergently sprayed to the periphery from a spray hole 502 on a spray cover 501 at the top end of the steam pipe 5 through the steam pipe 5 and finally flows through the blades, the heat transfer area in a unit effective volume is large, the temperature of a heat medium is from-40 ℃ to 320 ℃, and the heat medium can be water steam or liquid: such as hot water, heat conduction oil and the like, the heat is indirectly conducted and heated, air is not carried to take away heat, the heat is used for heating materials, and the heat loss is only the heat dissipation to the environment through the heat preservation layer of the device body.

When steam meets cold and condenses into water, the condensate water can gather in hollow blade 1, along with the paddle rotates, when the paddle blade turned to the top, the condensate water can gather in 2 outer ends of paddle shaft because the focus is left and right, simultaneously under the effect of baffle 4 flow into paddle shaft 2 through honeycomb duct, discharge at last.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the present invention are within the scope of the present invention.

Claims

1. A dryer blade comprises a hollow blade, a blade shaft and a steam shaft, wherein the hollow blade is arranged along the circumferential direction of the blade shaft, the steam shaft is arranged inside the blade shaft, radial guide pipes are symmetrically distributed on the blade shaft, and the steam shaft is radially provided with a steam pipe penetrating through the blade shaft and leading to the hollow blade, and the dryer blade is characterized in that: one side of the draft tube, which is far away from the axle center of the paddle shaft, is of a conical structure, the smaller end face of the conical structure is close to the axle center of the paddle shaft, one side of the draft tube, which is far away from the axle center of the paddle shaft, is provided with a baffle plate leading to the inside of the hollow paddle, the baffle plate is installed on one side of the draft tube, which is consistent with the rotation direction of the hollow paddle, one side of the steam tube, which is far away from the axle center of the steam shaft, is provided with a spraying cover, and the outer side of the hollow paddle is provided with a detachable scraper.

2. A dryer blade according to claim 1 wherein: the scraper blade is provided with a through threaded hole, the scraper blade is connected with the side wall of the blade through a bolt, and the bolt is inserted into the side wall of the blade.

3. A dryer blade according to claim 2 wherein: the thickness of the side wall of the scraper close to the hollow blade is larger than the thickness of the other side walls of the blade.

4. A dryer blade according to claim 1 wherein: the spraying hood is of a conical structure, the section of the conical structure is in a fan shape, and the end with the smaller radius of the steam pipe is close to the spraying hood.

5. A dryer blade according to claim 4 wherein: the spraying cover is provided with penetrating spraying holes which are uniformly distributed.