CN201061787Y

CN201061787Y - Roller screen trommel

Info

Publication number: CN201061787Y
Application number: CNU2007201167479U
Authority: CN
Inventors: 杨文君
Original assignee: Harbin Hetai ELectric Power Equipment Co Ltd
Current assignee: Harbin Hetai ELectric Power Equipment Co Ltd
Priority date: 2007-08-10
Filing date: 2007-08-10
Publication date: 2008-05-21
Anticipated expiration: 2017-08-10

Abstract

The utility model relates to a revolving roll picker, which relates to a coal-sieving device on a coal-sieving machine. A current vibration sieve has the problems of easy plugging, undercapacity, low efficiency, and spare parts are easily damaged, and a regular roller has the problems of serious coal-blocking of a sieve shaft at a material inlet, and the requirement of installation can not be satisfied. Sieve shafts (1) comprise a plurality of sieve shafts (10) which rotate in positive direction and a sieve shaft (11) which rotates in reversal direction, the sieve shafts (10) which rotate in positive direction and the sieve shaft (11) which rotates in reversal direction are arranged in a box body (3) from the front side to the rear side, one end of each sieve shaft (1) is connected with a deceleration motor (2), and a group of sieve sheets (4) are arranged on each sieve shaft (1), a strengthening board (8) is fixedly arranged on a rear inner wall (16) of the box body, and the angle between a movable deflector (9) and the rear inner wall (16) of the box body is 40 degrees, and the angle between the strengthening board (8) and the rear inner wall (16) of the box body is 20 degrees. The utility model utilizes the movable deflector which can quicken distribution of material, which improves sieving efficiency of the sieve shafts, and the sieve shaft which rotates in reversal direction solves the problem of coal-blocking which is created by small gap between the sieve shafts and the rear inner wall of the box body.

Description

Roller picker

Technical field

The utility model relates to the device of screening coal on a kind of machine of screening coal.

Background technology

As far back as eighties of last century the seventies, follow the Power Plant capacity to maximize, the machine of screening coal begins to manifest its importance in coal handling system, initial one well matched resonance screens and vibratory sieve.Two kinds of sieve bad attitudes in service are numerous, and are easily stifled, noise is big, dust is big, undercapacity, efficient is low, zero, parts are fragile, just are eliminated very soon.The early eighties probability screen comes out, and makes moderate progress than the bad attitude of common vibratory sieve, and is once voguish.But probability screen is vibratory sieve and vibratory sieve mechanism fellow disciple together, prolongs with also being eliminated after a period of time.

For the power plant that builds the seventies and eighties, there is the defective that system is disabled in machine because system screens coal, serious threat coal breaker and coal pulverizer security of operation, and the economy of infringement power plant operation.In view of the vibration bad situation of machine of screening coal in the power plant, power plant's desire is transformed into roller picker with vibratory sieve, but very little because of the screen coal occupation of land space of machine of vibration, can not satisfy conventional roller picker installation requirement far away, and feeding mouth place sieve axle chute blockage is serious simultaneously, can not use at all.

The utility model content

The purpose of this utility model provides a kind of roller picker, it can solve vibratory sieve exist easily stifled, noise is big, dust is big, undercapacity, efficient are low, problems such as zero, parts are fragile, and adopt conventional roller picker can't satisfy installation requirement, and problem such as feeding mouth place sieve axle chute blockage is serious.

The utility model comprises sieve axle, reducing motor, casing, sieve sheet, bearing block; The utility model also comprises stiffener, movable deflector, sealing device; Described sieve axle is made up of some forward rotation sieve axles and a backward rotation sieve axle; Some forward rotation sieve axles and a backward rotation sieve axle are housed in the described casing from front to back, the two ends of described every sieve axle pass respectively wall box be contained in casing affixed sealing device and bearing block on, every sieve axle is connected with the output shaft of corresponding reducing motor, one group of sieve sheet equidistantly is housed on the every sieve axle vertically, described stiffener is packed in behind the casing of backward rotation sieve axle top on the inwall, described movable deflector is positioned at backward rotation sieve axle and the forward rotation adjacent with backward rotation sieve axle sieved the casing of axle top, the upper end of movable deflector and the inwall of casing are hinged, movable deflector leans on mutually with stiffener, angle α behind movable deflector and the casing between the inwall is 40 °, and the angle β behind stiffener and the casing between the inwall is 20 °.

The utlity model has following beneficial effect: the utility model is the novel roller picker that utilizes the mechanism design of screening coal of the small space of vibratory sieve and conventional roller picker, the utility model is to have installed movable deflector on conventional roller picker additional, a large amount of coal stream is tilted the movable deflector of installation and guides on the sieve axle of normal operation, it is little and cause the problem of chute blockage that the movable deflector material that can distribute fast, the sieve axle of counter-rotating have solved sieve axle and stiffener inwall spacing to the casing.Simultaneously the utility model also have exert oneself big, screening efficiency is high, anti-blocking, compact conformation, fast sieve material, low, the easy installation of noise, reliable, use advantage easy to maintenance, can satisfy the screen coal instructions for use of machine of system fully.

Description of drawings

Fig. 1 is the front view of roller picker of the present utility model, and Fig. 2 is the vertical view (removing stiffener 8 and movable deflector 9) of Fig. 1, Fig. 3 be the A of Fig. 1 to view, Fig. 4 is that the B of Fig. 1 is to view.

The specific embodiment

The specific embodiment one: in conjunction with Fig. 1～Fig. 4 present embodiment is described, present embodiment is made up of sieve axle 1, reducing motor 2, casing 3, sieve sheet 4, bearing block 5, sealing device 12, stiffener 8, movable deflector 9; Described sieve axle 1 is made up of 10 and backward rotation sieves of some forward rotation sieve axles axle 11; 10 and backward rotation sieves of some forward rotation sieve axles axle 11 is housed in the described casing 3 from front to back, the two ends of described every sieve axle 1 pass respectively wall box 13 be contained in casing 3 affixed sealing device 12 and bearing block 5 on, every sieve axle 1 is connected with the output shaft of corresponding reducing motor 2, one group of sieve sheet 4 equidistantly is housed on the every sieve axle 1 vertically, described stiffener 8 is packed in behind the casing of backward rotation sieve axle 11 tops on the inwall 16, described movable deflector 9 is positioned at the casing 3 of backward rotation sieve axle 11 and forward rotation sieve axle 10 tops adjacent with backward rotation sieve axle 11, the upper end of movable deflector 9 and the inwall of casing 3 are hinged, movable deflector 9 material that can distribute fast, improve and divide screen capacity, movable deflector 9 leans on mutually with stiffener 8, angle α behind movable deflector 9 and the casing between the inwall 16 is 40 °, and the angle β behind stiffener 8 and the casing between the inwall 16 is 20 °.

The used above-mentioned element structure of sieve axle 1 in the present embodiment, sieve sheet 4 and bearing block 5 and conventional roller picker, measure-alike.

The specific embodiment two: in conjunction with Fig. 1 present embodiment is described, the difference of the present embodiment and the specific embodiment one is: present embodiment also increases clearing apparatus 7 under last clearing apparatus 6 and a group; On the upper end outer wall of described backward rotation sieve axle 11 clearing apparatus 6 is housed vertically, on the lower end outer wall of described every forward rotation sieve axle 10 clearing apparatus 7 under a group is housed vertically, upper and lower clearing apparatus is installed, can play anti-blocking effect.

The specific embodiment three: in conjunction with Fig. 1, Fig. 3, Fig. 4 present embodiment is described, the last clearing apparatus 6 and the following clearing apparatus 7 of present embodiment are made up of link 18 and one group of scraper plate 14 respectively; Described one group of scraper plate 14 is fixed together by link 18, and the two ends of link 18 are affixed with wall box 13 respectively, and cleaning tooth 17 correspondences on the described scraper plate 14 are arranged between two sieve sheets 4.So be provided with, can avoid guaranteeing the unimpeded of sieve aperture because the obstruction sieve aperture that the coal water content causes greatly also can avoid ut to be stuck in the sieve aperture, thus the screening efficiency height, and it is simple in structure, be convenient to installation.Other composition and annexation are identical with the specific embodiment two.

During roller picker work, every sieve axle is all driven separately by reducing motor 2, and except that a backward rotation sieve axle 11, other forward rotation sieve axle 10 is all by the rotation of coal stream traffic direction.When movable deflector 9 that a large amount of coal stream is tilted installation is distributed on the forward rotation sieve axle 10 adjacent with backward rotation sieve axle 11 fast, all forward rotation sieve axles 10 are passed material and are rolled, material is in rolling process, material less than sieve aperture falls, bulk materials rolls across from compass screen surface, and it is little and cause the difficult problem of chute blockage that backward rotation sieve axle 11 has solved inwall 16 spacings behind sieve axle 1 and the casing.

Claims

1. roller picker, it comprises sieve axle (1), a reducing motor (2), casing (3), sieve sheet (4), bearing block (5); It is characterized in that it also comprises stiffener (8), movable deflector (9), sealing device (12); Described sieve axle (1) is made up of some forward rotation sieve axles (10) and a backward rotation sieve axle (11); Some forward rotation sieve axles (10) and a backward rotation sieve axle (11) are housed in the described casing (3) from front to back, the two ends of described every sieve axle (1) are passed respectively on the sealing device (12) and bearing block (5) that wall box (13) is contained in and casing (3) is affixed, every sieve axle (1) is connected with the output shaft of corresponding reducing motor (2), one group of sieve sheet (4) equidistantly is housed on the every sieve axle (1) vertically, described stiffener (8) is packed in behind the casing of backward rotation sieve axle (11) top on the inwall (16), described movable deflector (9) is positioned at backward rotation sieve axle (11) and the forward rotation adjacent with backward rotation sieve axle (11) sieved the casing (3) of axle (10) top, the upper end of movable deflector (9) and the inwall of casing (3) are hinged, movable deflector (9) leans on mutually with stiffener (8), angle α behind movable deflector (9) and the casing between the inwall (16) is 40 °, and the angle β behind stiffener (8) and the casing between the inwall (16) is 20 °.

2. roller picker according to claim 1 is characterized in that it also comprises clearing apparatus (7) under clearing apparatus (6) and a group; On the upper end outer wall of described backward rotation sieve axle (11) clearing apparatus (6) is housed vertically, on the lower end outer wall of described every forward rotation sieve axle (10) clearing apparatus under a group (7) is housed vertically.

3. roller picker according to claim 2 is characterized in that describedly going up clearing apparatus (6) and following clearing apparatus (7) is made up of link (18) and one group of scraper plate (14) respectively; Described one group of scraper plate (14) is fixed together by link (18), and the two ends of link (18) are affixed with wall box (13) respectively, and cleaning tooth (17) correspondence on the described scraper plate (14) is arranged between two sieve sheets (4).