Hammer crusher is the main crusher which used for crushing limestone, coal, and other medium hard brittle materials in metallurgy, building material, chemical industry, electric power. It has the characteristics of big crushing ratio, high production capacity, and well product size. Primary hammer crusher can crush 1100mm to 20mm. This kind of equipments can change two stage crushing or three stage crushing to one stage crushing. It will simple process, save cost and consumption.

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Specification	Main Motor				Application
	Model	Power(kW)	Speed(r/min)	Voltage(V)
PCK-1413	JS1410-6 JS158-6	520 550	985	3000 6000	Crush less than medium hard brittle material
PCK-1416	Y500-6	560	985	6000	Same
PCK-1413	JS1410-8 JS158-8	370 380	735 740	3000 6000	Same
PCK-M1010	JS-138-6 Y400-3-6	280	980 1000	3000 6000	Coal
PCK-M1212	JS148-8 JSQ158-8	310 320	735 740	3000 6000	Same

Hammer crusher features and the working principle and purpose

Hammer crusher structure:

Hammer crusher housing, rotor, hammerhead, back plate, screen plate, etc.

Hammer crusher features:

(1) working hammer head, using the new technology of casting, with wear-resistant, resistant to impact.

(2) can be adjusted according to customer requirements, size you need.

(3) hammer broken the seal structure, solve the crushing plant dust pollution and ash leakage problems in the body.

(4) the overall design beautiful shape, compact structure, less wearing parts, convenient maintenance, is the upgrading products.

Hammer crusher main use:

Hammer crusher is used for crushing all kinds of medium hard and abrasive weak material. The material does not exceed 100 mpa compressive strength, moisture content is less than 15%. Being broken material for coal, salt, chalk, plaster, brick and tile, limestone, etc. Is also used to broken fiber structure, strong elasticity and toughness of broken wood, paper, or broken asbestos cement waste With recovery of asbestos fiber and so on. Hammer crusher, moreover, not only can be used for crushing production line, sand making production line, can also be used in mineral processing production line instead of cone crusher. The main working parts of the hammer crusher rotor with a hammer (also called hammer). The rotor is composed of main shaft, disk, pin shaft and hammer. Motor drives the rotor in the crushing cavity high-speed rotation. Since the upper material feeding mouth to into the machine, the high-speed movement of the hammer blow, impact, shear, grinding and crushing. At the bottom of the rotor and sieve plate and grinding material is less than the screen hole size in graded Through the sieve plate, is greater than the screen hole size of the coarse grained resistance continues to hit by the hammer on the sieve plate and grinding, and finally through the sieve plate outside.

The advantages and disadvantages of hammer crusher:

The advantages of hammer crusher are: broken than large (generally for 10 to 25, the most up to 50), high production capacity, product of uniform, too less, low energy consumption per unit product, simple structure, equipment quality is light, easy in operation and maintenance.

Hammer crusher fault is: hammer and gas grizzly wear fast, overhaul and find balance time is long, when material crushing hard material, wear faster; Broken stick wet material, easy blocking gas grizzly seam, therefore cause outage should not be more than 10% moisture content (material).

Ring hammer crusher

Ring hammer crusher by high-speed rotating hammer body and material impact crushing material, it has simple structure, big crushing ratio, high production efficiency, can make dry, wet two forms, ring hammer crusher is suitable for the mining, cement, coal, metallurgy, building material, highway, burning and other departments to finely medium hardness and brittleness material. Ring hammer crusher, the article gas clearance can be adjusted according to user requirements, change the discharging granularity, to meet the different needs of different users.

Hammer crusher working principle:

Hammer crusher is mainly by impact crushing material. Crushing process is that the material into the crusher by high-speed rotating hammer impact and broken, broken material obtained from hammer kinetic energy, from high speed toward the body flap, screen, meanwhile material impact each other, have been broken many times, the clearance of the material is less than the bar, from the eduction in clearance, individual large material, on the bar again by the impact of the hammer head, grinding, extrusion and crushing, the material being hammer head out from the gap. To obtain the required particle size products.

Hammer crusher installation and commissioning:

1, before the installation can be chosen according to the sources of raw materials of good terrain.

2, the machine by the anchor bolt on the concrete, to allow drainage trough design foundation, the slope can not less than 50 °, but the user can also according to the feeder and transport equipment.

3, the motor should be in with the inlet in the opposite direction.

4, electrical equipment location is better to use convenient.

Before 5, commissioning should first check the fasteners are firm.

6, check whether in the body into metal or other easily broken fragments.

7, check whether the bearing inner appropriate lubricating oil.

8, turn the rotor by hand, to see if it is normal, with or without friction phenomenon, if confirmed for sports shine, before starting, empty test after half an hour without a murmur, swing, bearing temperature rise shall not exceed 30 ℃ when the load test can be achieved.

The PC hammer crusher structure

Hammer crusher main working parts:

For the rotor with a hammer (also called hammer). The rotor is composed of main shaft, disk, pin shaft and hammer. Motor drives the rotor in the crushing cavity high-speed rotation. Since the upper material feeding mouth to into the machine, the high-speed movement of the hammer blow, impact, shear, grinding and crushing. At the bottom of the rotor and sieve plate, crush material is less than the screen hole size in graded through the sieve plate, is greater than the screen hole size of the coarse grained resistance continued to hit by the hammer on the sieve plate and grinding, and finally through the sieve plate outside. Hammer crusher is suitable for crushing various brittle materials of mineral. Being broken material for coal, salt, Bai Ya, plaster, alum, brick, tile, limestone, etc. Hammer crusher material compressive strength less than 100 million mpa and humidity no more than 15%. Can be used as a stone, stone crushing, mining, plastic pieces, and rubbish crushing materials such as crushing equipment use. Hammer crusher is heavy and light two kinds, ring hammer type coal pulverizer (light hammer crusher) applies to Morse Hardness of the secondary material of broken, the use of crushed coal ring hammer. Ring hammer crusher (heavy hammer breaking machine) suitable for mohs hardness brittle material breakage under five. Because of gravel ring hammer quality is greater than the quality of broken coal ring hammer, so which can improve the impact force of hammer rings, crushing ores.

Inspection and operation of the hammer crusher operation:

In the normal operation of hammer crusher, in case of sudden stop, before did not find out the reason, can not be forcibly boot device, the cause, to sort out the material inside the crusher, can in order to drive.

Note; Crusher running sound is normal, when the hammer head and gas beating, friction and other abnormal sound should be handled in time, it is strictly prohibited to operate the equipment. After parking in broken, also should check the hammer and lining board, discharge gas of the grinding two-string fiddle.

Hammer crusher fault and eliminate:

1, bearing overheating

Reason: insufficient grease; Grease too much; Grease filth metamorphism; Bearing damage.

Exclude: suitable filling grease; Bearing inner embellish grease should be its space volume of 50%; Cleaning bearing; Replace the grease; Replace the bearing.

2, discharging granularity is too large

Reason: the hammer wear too much; Sieve the fracture.

Method: replacing hammer head; Replace the screen.

3, reduce yield

Reason: the sieve aperture blocked; Uneven loading.

Method: parking, cleaning sieve aperture clogs in; Adjust the feeding mechanism.

4, tapping elastic coupling

Reason: the pin loosening; Elastic ring wear;

Method: parking and screw down the pin nut; Change the elastic ring.

5, inside the tapping machine

Reason: the broken objects into the machine inside; Plate fasteners loose, hammer impact on the lining board; Breaking hammer or other parts.

Method: parking, clean up the broken cavity; Monitor the fastening of the plate and the clearance between hammer and sieve article; Replace the broken parts.

6, the machine vibration

Reason: replacing hammer head or make rotor static balance with conical head wear out requirements; Hammer broken, rotor imbalance; Pin shaft bending and breaking; Triangle plate or disc cracks; Anchor bolt is loose.

Elimination method: hammer head, choice of weight hammer head, make the total weight of each hammer hammer on the shaft and its relative equals the total weight hammer hammer on the shaft, namely static balance is achieved; Replacing hammer head; Change the pin shaft; Welding repair or replacement; Tighten the anchor bolts.

Hammer crusher maintenance:

Fault phenomenon: discharging granularity is too large.

Reasons: 1) the hammer wear too much; Article 2) screen. Method: 1) replacing hammer head; Article 2) change the screen.

Fault phenomenon: bearing overheating.

Reasons: 1) the lack of grease; 2) too much grease; 3) grease filth metamorphism; 4) bearing damage. Excluded methods: 1) the charging amount of grease; 2) bearing inner embellish grease should be 50% of its space volume. 3) bearing cleaning, change of grease. 4) replace the bearing.

The tapping fault phenomenon: elastic coupling.

Reasons: 1) the pin loosening; 2) elastic ring wear; Excluded methods: 1) parking and screw down the pin nut; 2) change the elastic ring.

Fault phenomenon: inside the tapping machine.

Reasons: 1) inside the gouge into the machine; 2) plate fasteners loose, hammer impact on the lining board; 3) fracture hammer or other parts.

Imported pump valve elimination method 1) parking, clean up the broken cavity; 2) monitor the fastening of the plate and the clearance between hammer and sieve article; 3) replace the broken parts.

A hammer crusher structure diagram

 

A hammer crusher performance parameters of the table   

specifications	The rotor diameter (mm)	The length of the rotor (mm)	The largest feed particle size (mm)	Discharging granularity ≤(mm)	production (t/h)
PCY-S2020	2000	2000	1100	20/80	300~400
PCY-S2030		3000			~700

 

The main components of weighing scale（t） 

specifications	The machine Total weight	The ministry of housing	The feeding The ministry of roll	The ministry of the rotor	The ministry of grate	The ministry of security door	The ministry of basic	most parts
PCY-S2020	152.6	76	29.1	35.7	6	1.1	2.7	35.7
PCY-S2030	182.9	88.6	36.9	44	6.6	1.4	2.7	44

PCKSeries weighing scale（t）  

PCSeries weighing scale（t）