7*24 All Day Long
[email protected]

Home > News Center > News detail

Analysis and Improvement of the Tooth Roll of the Double Roll Crusher

Time:Feb 10, 2020 Author:Boleiro

double-roll crushers are able to crush more finely than single-roll crushers, because they are designed with teeth that mesh together rather than rotating past a smooth plate. they can reduce coal to as little as inch (0.6 cm) topsize, although they are more commonly operated close to 2 inches (5 cm).

during the process of crushing, the crushing clearance of rolls is set to 0.6 to 2.4 times 80% passing size of feed material, and feed rate is limited so that passing rate of the material ranges 0.5 to 0.8 times the theoretical throughput capacity of the crusher, which remarkably increases the actual throughput of the roll crusher.

Ep0514953a2-roll crusher and crushing method in use for

Ep0514953a2-roll crusher and crushing method in use for

a multiple roll crusher is provided for crushing of mineral material, more particularly of coal or oil sand. the multiple roll crusher includes at least three crusher rolls ( 1, 2, 5 1′, 2 ′), the rotation axes (r) of which lie in parallel to each other and horizontal or roughly horizontal. all directly neighboring crusher rolls ( 1, 2, 1′, 2 ′) have opposite directions of rotation.

Size reduction equipment

The top of the crusher. double toggle –two shafts –first pivoted at the top of the crusher where as other is an eccentric shaft which drives the both the toggles. eccentric positioned behind the swinging jaw. it has two effects. 1. it keeps the eccentric out of harm. 2. the other effect is limited motion for swinging jaw, which reduces the

according to the crushing capacity and the size of the discharging granularity, the two crushing rolls are uniformly filled with brushing teeth. and the double-toothed roll crusher adopts the operation way of non-circular, non-intermesh and non-uniform, which can enhance the contact face of roller teeth, and avoid material slippage and improve crushing efficiency.

an improved double-roll crusher is provided which is especially suitable for crushing bones having a relatively low content of soft matter, the crusher being of the general type comprising two parallel rolls, each comprising an assembly of alternating toothed cutting discs and spacers so disposed that cutting discs on one roll extend radially into the spaces between adjacent cutting discs on the opposing roll in an alternating manner, wherein the improvement

design and production of an indigenous roll crusher from locally available materials for low hardness rocks was carried out in this work. the throughput capacity of the machine was 1.43tonnes/hour. the theoretical efficiency of the double roll crusher when crushing limestone was

Design, fabrication and testing of a double roll crusher

Design, fabrication and testing of a double roll crusher

jun 15, 2019 for the two-toothed roll crusher, the power increased to 524 kw/h at 700 t/h of feed rate, almost 2.5 larger than 300 t/h, which was 224 kw/h. only slight changes were observed in the power consumptions of both the hammer crusher-a and the jaw crusher, i.e., an increase by 100 kw/h and 50 kw/h, respectively.

Roll crusher中文,roll crusher的意思,roll crusher翻譯及用法

This paper introduces cogged structure of pgc series double teeth roll crusher unreasonable structure puts forward improving ways. 介紹了pgc系列雙齒輥破碎機齒輥結構不合理處,并提出改進措施。 based on this, a stochastic model for analysis of energy consumption of a double roll crusher was deducted.

function. ajmani manufactures the double roller crushers separate the feed material with high pressure. the driven toothed rollers draw the material into the crushing gap. due to the high impact rate of the circulating crushing tooth segments the effective crushing action starts already above the toothed roller.

there are two gundlach double-roll crushers, one pennsylvania granulator crusher and three fmc vibrating feeders. with roll diameters of 2.0 m, roll widths of 2.5 m and a drive rating of 2 x 450 kw each, the four double-roll crushers at the core of these plants are among the largest that krupp fordertechnik has ever supplied worldwide.

(pdf) design of impact stone crusher machine

(pdf) design of impact stone crusher machine

the double-toothed roll crusher is equipped with a scraper to keep the groove and working surface clean. for the toothed roll crusher, the outlet-size depends on the gap between the two rollers, the size of teeth, shape of teeth, and the number. the double-toothed roll crusher is relatively small in volume.

Particle size and standard deviation-cpm

(m/sec) with roll speed differentials. roll speed differentials simply means one roll turning faster than the other and is usually described in the form of a ratio, slow roll speed expressed as 1. for example, rolls operating at 1.5:1 differential with a fast roll speed of 1,000 rpm would have the slow roll

torque and low roll speeds with a unique tooth profile in the abon equipment leads to a specified product with a minimum of fines creation. maintenance the sizer teeth are fully adjustable and maintainable to allow for accommodating changes in process. the can easily be taken apart and moved without any specialized tools.

jul 01, 2014 jul 01, 2014 the double-roll crusher, a crushing device in which breakage occurs between a pair of rolls that rotate in opposite directions, is used for crushing particles into a size range of 1–50 mm. the minerals of rock particles placed between the rolls are nipped and then crushed as they pass between the rolls.

Application of analytical hierarchy process to selection

Application of analytical hierarchy process to selection

roll crusher. for a given reduction ratio, single-roll crushers are capable of reducing rom material to a product with a top size in the range of 200–18 mm in a single pass, depending upon the top size of the feed coal. double-roll crushers consist of two rolls that rotate in opposite directions.

Segments | crushco

Segments. tooth profiles. with 15 years of expertise in crusher engineering and supplying double roll crusher segments to the coal industry, you can have peace of mind that crushco engineering will supply you with best-in-industry, high quality and local-casted segments & mechanical spares. with a strong footprint in the mpumalanga coal

a roll crusher having a pair of rolls facing each other, in which feed material to be crushed is fed into a space or a crushing chamber formed in between these rolls, and the pair of rolls rolls up the material to compress and crush. during the process of crushing, the crushing clearance of rolls is set to 0.6 to 2.4 times 80% passing size of feed material, and feed rate is limited so that

improvement cavity of raymond mill this kind of structure is to use the raymond mill wedge adjusting mechanism and double roller of raymond mill designed combining the active roller. the state machine for milling surface roller, roller of roller, threatening the plate of the three cavity type structure, and give the three cavity type slot case

nov 08, 2019 nov 08, 2019 the tooth's position and the connecting structure between roll and tooth-holders of new-type toothed roll crusher have been improved. in terms of tooth position, the roll crusher teeth are set in the peripheral direction, adopting the setting form of large tooth

Coal crushing: new-type toothed roll crusher vs

Coal crushing: new-type toothed roll crusher vs

double roll & teethed roll crusher. although its brief period of popularity passed some thirty-odd years since, and only a few sets were installed before interest reverted to other types, the high-speed double roll crusher developed by thomas a. edison shortly before the end of the last century warrants a place in any discussion-of crushing equipment.

Us7270706b2-roll crusher to produce high purity

A single roll crusher for comminuting high purity materials includes a roll with teeth spaced around the circumference of the roll. the roll is rotatably mounted inside a housing. the housing has a top with an entrance port, sides, and bottom with an exit port. the roll, teeth, and at least the inside surfaces of the top, sides, and bottom are fabricated from a material of construction that

in addition, the present invention provides a roll crusher having a plurality of kinds of crushing teeth for crushing a material to be crushed on the outer periphery of a rotor driven to rotate. the roll crusher includes a cylindrical rotor body driven to rotate. the rotor body has breaking tooth fixing holes radially extending therethrough.

(m/sec) with roll speed differentials. roll speed differentials simply means one roll turning faster than the other and is usually described in the form of a ratio, slow roll speed expressed as 1. for example, rolls operating at 1.5:1 differential with a fast roll speed of 1,000 rpm would have the slow roll

novikov tooth form ..these profiles are not conjugate. gears with this tooth form depend upon helical overlapping of the teeth in order to roll continuously. this can and does create face width size and end thrust problems, at the present time, except for clock and watch gears, the involute curve is almost exclusively used for gear tooth pro-

Back to basics-gear design

Back to basics-gear design

icon
Online Chat