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Travelling grate occupies 95% industry sgare and has been applied to metal crops, these kinds of as:Sha Metal,Captial Metal,HangZhou Steel,HangZhou Metal,HangZhou Metal,Pan Zhihua Steel,HangZhou Metal,ect.
The traveling grate is the particular crawler thermal tools for touring grate-rotary kiln pellet approach. It’s purpose is to consider the experienced green bal EPT by way of a number of procedure sections like draught drying part and preheating area to end the process of de-watering, preheating and oxidation, so that the environmentally friendly bal EPT is competent to be billed into rotary kiln by means of shovel plate.
The grate is used to dry, preheat, oxidize and solidify the green pellets by utilizing the residual heat of the ring cooler and the very hot air discharged from the rotary kiln on the grate plate with the ball cloth containing iron. Then it is straight sent to the rotary kiln for roasting. The powder on the grate is collected and reused by the ash bucket.Grate is a kind of thermal equipment which works at substantial temperature.
In accordance to the operating temperature of gear, material ratio and all round procedure, it can be divided into metallized pellet grate, oxidized pellet grate and minimal-temperature reduction grate.
Specification for Chain grate(2.8m´42m)
one Solution Description
1.1 Technological Parameter
one.1.2 Effective surface area spot:117.6 m2
1.1.3 Width of grate mattress:2.8 m
one.1.4 Powerful duration:forty two m
one.1.5 Thickness of materials bed:a hundred and sixty~a hundred and eighty mm
one.1.6 Processed content:environmentally friendly ball(gravity:2.~2.2 t/m3 granularity:8~16mm)
one.1.7 Processing capacity:90 t/h
one.1.8 Annual working hour:≥7,920 hour
one.1.9 Material staying time:24~30 min
one.1.10 Speed:1.5m/minrange of pace:.57~2.9 m/minnormal procedure:1.5~2. m/min
one.1.11 Double drivingfrequency controlmotor(QABP160L6A ,4×11kw)main reducer (2 sets)(TSH750AH-1311)
one.2 Basic structure and configuration of tools
one.2.1 Chain grate measurement: 2.8m´42m effective area:117.6m2 substance thickness: a hundred and sixty~180mm standard processing ability: ninety t/h standard equipment speed: 1.5~2. m/min effective keeping time: 20 min (normal machine velocity) bellows force (down draft): ≤-5000Pa diameter of head sprocket pitch circle: φ1571.17mm head sprocket tooth amount: 16 chain shackle pitch: 230mm central distance of head and tail sprockets: 45,300 cooling water use: about 150m3/h cooling water stress: .3MPa (water intake points).
1.2.2 In order to make sure item top quality, components shall be assembled for no-load examination. All huge tools shall be pre-assembled. Raw materia EPT shall be pre-processed by ru EPT elimination and drying.
one.2.3 Plates are cut by CNC lathe with laptop system. Area steel is cut by belt noticed. Following combined welding, uneven welding seam shall be floor by sand wheels. After examining demonstrates conformity, welding seams shall be de-rusted, coated and repainted. Important welding seams shall be non-destructive detected by ultrasonic wave and magnetic particles according to distinct situations.
1.2.4 The paint on structural factors shall be sampled and checked for thickness and adhesion. Crucial areas shall be offered with te EPT specimen and chemical composition stories, tensile toughness, generate strength te EPT reviews, non-damaging flaw detection reports, hardness studies and machining document reports. Machined gears shall be inspected for equipment profile accuracy, equipment face hardness, permeated depth, assembling central distance, get in touch with precision, facet backlash, and detail inspection data.
two Scope of Offer
The complete chain grate primarily is made up of the pursuing areas:
2.1 Driver(like motor and braking device)
Gear box ,VFD
Motor -ABB/Siemens VFD- ABB/Siemens
two.2 Traction element(like grate mattress, upper and decrease trolley wheels, head and tail wheels, and so on.)
2.3 Side sealing unit(side sealing box and seat, and many others.)
2.4 Spading plate
2.5 Bellows assembly and butterfly valve
two.6 Lower retaining roller
two.7 Rack(like sliding chute)
two.8 Hood(such as accident chimney and management unit )
two.9 Adjusting shim ,foundation bolts and commissioning spares
two.10 Emission chimney at preheating section of chain grate
2.11 Tail pressure pulley and grate pressing gadget
two.12 Connection portion in between chain grate and rotary kiln(which includes wind-cooling sort chute, chute seat and front link board
two.13 Cinder box
two.14 Cooling gadget
2.15 Lubrication system
three Equipment manufacturing specifications and inspection specifications
Building drawings, concluded by Seller, shall topic to Buyer’s review and signing. Only following that, can this drawing be adopted for production. These kinds of functions as assembling, te EPT and inspection are then done in the production plant.
three.1 Detect the simple unit of gearing gadget in accordance to relative requirements when it concluded assembly. Every single areas stable operation, with no irregular noise and influence, the arresting gear reliable operation.
3.2 The machining and assembly of equipments ought to be performed in the manufacture plant, the chain equipment could internet site assembly by set up units.
three.3 Main technological standards adopted for the duration of producing: EPT Technical Specifications on Large EPT (JB/T15000.1~fifteen).
three.4 Manufacturing, assembling and commissioning of the grate equipment need to fulfill the specifications of layout drawings and documents and be supplied with complete high quality inspection stories. Supervisors for equipment manufacturing are entitled to verify and evaluation quality inspection studies and pertinent paperwork.
4 Equipment installation requirements
The style drawing specifications and EPT Technical specs on EPT Set up, Design and Acceptance (GB55711-ninety eight) shall be adopted for design, set up and acceptance of the grate machine
The compatibility of the grate airplane, chain joint and the pin roll need to be guarantee, just before delivery the inspect of delivery acceptance, sample detect ought to be executed.
Upon arrival of products on internet site, Vendor shall send out experienced specialists to the web site to instruct installation. Seller shall restore and change these defect equipment emerged in the course of this interval in specified interval cost-free of charge.
Seller shall ship personnel to the internet site for the duration of set up interval until equipment is conformed and acknowledged. The buyer should guarantee that the gear is commissioned and examined within eighteen mouths from the date of receipt of the la EPT materia EPT of provide at website.
5 Te EPT run and performance te EPT of equipment
The grate machine shall be usually assembled, no-load analyzed and load analyzed on site. The inspection and performance te EPT shall conform to the followings:
5.1 The driver shall be working-in underneath no-load and gradually loading operation.
5.2 The grate machineis commissioned as a whole, which shall meet up with the drawing needs.
five.3 Seller shall ship staff to take part in no-load and load tests and to settle specialized difficulties in relation with manufacturing that will come out throughout the te EPT run.
The use of original equipment manufacturer’s (OEM) component figures or emblems , e.g. CASE® and John Deere® are for reference purposes only and for indicating solution use and compatibility. Our organization and the shown substitution components contained herein are not sponsored, accepted, or manufactured by the OEM.