Product Introduction

Coal impact crusher is single rotor irreversible crusher, mainly applied to crush low hard crisp materials like coal and coke in the coking plant, power plant and coal mine. It has high size reduction ratio, high output, even granularity, less over-crushing, low energy consumption and convenient maintenance.

Working Principle

Materials are crushed by the speedy impact produced by the hammer on the rotary rotor. Crushed materials are thrown along the direction of tangent to the impact plate on the other end of the chamber to be recrushed. Then, they will rebound to the hammer from the impact plate. Materials will also impact with each other on the way. Because of the beat of the hammer, impact of the plate and collision between materials, they crack and loosen. Then, they will be discharged when the size is smaller than the gap between the impact plate and the hammer.

Performance Characteristics

1. Large feeding inlet, high crushing chamber, suitable for materials of high hardness, large lumpiness, less stone powder, high size reduction ratio, cubic shape of products, selectable crushing.

2. after the optimization, the machine has low rotary speed and multi-crushing chamber. the linear velocity decreases by 20%-25% compared to common impact crushers, which improves the productivity by low energy consumption.

3. the back plate of the rotor is able to carry high moment of inertia and the crushing force of the hammer.

4. It's convenient to adjust the gap between the impact plate and the hammer which effectively controls the discharging granularity and forms good shape.

5. Compact structure, strong rigidity, high moment of inertia.

6. High chromium hammer, impact resistance, abrasion resistance, strong impact, reasonable hammer structure, easy assembly, and multi-transposition. It greatly saves the time to replace the hammer.

7. Complete crushing functions, high productivity, less abrasion of components, high comprehensive benefit.

8. Keyless connection, convenient maintenance, reliable and economical. Highly wear-resistant and highly tough chromium, molybdenum and vanadium materials are manufactured to solve the problem of crushing hard materials which greatly prolongs the useful time of the hammer.

9. Unique impact truss plate, keyless connection and new wear-resistant materials prolong the useful time of the hammer, impact plate and the liner.

Model

Model	Content
PF	Impact Crusher
D(J)	Coal for Power Station(Coal for Coking)
	Rotor Diameter, mm/100
	Rotor Length, mm/100

Technical Parameter

Basic Parameters	Model						Notes
	PFD(J)-0707	PFD(J)-1108	PFD(J)-1112	PFD(J)-1414	PFD(J)-1418	PFD(J)-1818
Rotor Diameter mm	750	1100	1100	1450	1450	1800
Rotor Length mm	700	850	1200	1400	1900	1800
Feeding Granularity  mm	≦200 ≦80	≦200 ≦80	≦200 ≦80	≦300	≦300	≦300	PFD PFJ
Discharging Granularity  mm	≦25 ≦3	≦25 ≦3	≦25 ≦3	≦25	≦25	≦25	PFD PFJ
Capacity t/h	40~60	80~110	180~220	260~320	480~520	700~800
Rotor Linear Velocity m/s	38 50	34 56	34 56	36	36	35	PFD PFJ
Motor Power kw	37 55	75 132	160 250	280	330	500	PFD PFJ
Weight (Excluding the Motor)	3.2	5.1	7	12	15.4	20
Note 1: the rotor diameter refers to the revolving trajectory of the hammer top; the rotor length refers to working length of the rotor; the feeding granularity refers to the maximum side length of materials.  Note 2: Capacity refers to the compressive strength of no more than 140MPa with the moisture content less than 10%. the granularity specified in the chart is 80%, with the hammer and the impact plate unabraded.