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HSZ (HS) series Ring Hammer Crusher

key word:Heat exchange element

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Product description

HSZ (HS) series ring hammer coal crusher

 

1. Introduction

1.1. Purpose

HSZ (HS) series ring hammer coal crusher is a kind of high-efficiency crushing equipment used in thermal power plant. It carries out coarse crushing and intermediate crushing operation for bituminous coal, lignite, anthracite and other coal, and supplies raw materials for boiler pulverizing system. It can also be used in coal, metallurgy, chemical industry, building materials, textile and other industries to crush coke, slag, gangue, shale, asbestos, flint and medium hardness ore and other brittle materials.

1.2. Model meaning

              HS-Z-P-****

              HS -- ring hammer coal crusher

              Z -------- heavy code Z

              P -------- bypass device code P

              ****--------Rated output (T / h)

1.3. Working principle

This series of ring hammer coal crusher mainly uses the high-speed rotating ring hammer to impact and crush the materials. After the materials enter the crushing chamber from the feeding port, they are crushed by the impact of the high-speed rotating ring hammer. The crushed materials get kinetic energy and rush to the crushing plate at high speed and are crushed again. At the same time, the materials collide with each other to further crush. Small pieces of materials are squeezed, sheared, rolled and grinded again by the rotary hammer ring at the lower part of the crushing plate and on the sieve plate to reach the qualified particle size, and finally discharged from the sieve plate hole.

 

2. Structural features

As shown in figure 29-1, HSZ ring hammer coal crusher is mainly composed of body, cover, rotor, sieve plate frame, screen plate frame regulator and hydraulic system. The joint of each part is sealed with semicircular rubber sponge.

2.1. Body and cover

The body and cover are welded by steel plate. The body and cover are connected by hinge, and the hydraulic opening device is used for turning and closing. A lower plate is installed at the lower part of the machine body corresponding to the sieve plate frame, which corresponds to the upper plate on the machine cover. Protective wear-resistant lining plates are installed on the inner walls of the machine body and the machine cover.

The machine cover is equipped with a debris removal room, and the debris that cannot be broken (such as iron, wood, etc.) is moved into the debris removal room. The machine body is equipped with an air volume adjusting plate which can be adjusted outside the machine to adjust the air volume and generate a micro negative pressure inside the machine.

2.2. Sieve plate frame

The sieve plate frame is welded with steel plate, angle steel and round steel parts. The sieve plate frame is hung in the shaft seat on the machine body by the suspension shaft, and is limited by the clamping plate. The ear hole at the lower part of the support is combined with the screw rod of the screen plate regulator. The broken plate, large hole sieve plate and small hole screen plate made of manganese steel are fixed on the sieve plate frame by bolts and nuts.

It is a kind of special bamboo, such as hole sieve plate and small hole division board

2.3. Rotor part

The rotor part is fixed on the body by the bearing seat, and the main shaft of the rotor is equipped with flat key, disc, spacer sleeve, rocker arm, flat ring hammer, gear ring hammer and other parts. The ring is assembled on the counterweight ring and the counter weight ring. The parts on the main shaft are pressed by the locking nuts at both ends. In order to avoid loosening during operation, the positioning block is welded in the groove of the locking nut.

The bearing block adopts two seals, one is labyrinth seal, the other is polyurethane seal, which makes the seal more reliable. Double row radial spherical roller bearings are installed at both ends of the main shaft. The main shaft and motor are connected together by serpentine spring coupling and hydraulic coupling.

2.4. Sieve plate frame regulator Part

This machine has two sieve plate frame regulators, which are composed of screw, nut, rotary shaft, bracket and other parts.

When the gap between the sieve plate and the hammer ring needs to be adjusted, the nut driven by the wrench is used to drive the screw to rotate, so that the lead screw will produce displacement, and the gap between the sieve plate and the hammer ring can be adjusted to obtain the required discharge particle size.

2.5. Hydraulic system

For the convenience of maintenance, the opening of the cover is realized by the hydraulic system. The hydraulic system is composed of two oil cylinders, hydraulic stations, rubber tubes and other parts to open the cover.

The motor power of the hydraulic station is 2.2kW, the voltage is 380V, the speed is 1500r / min, the maximum working pressure is 11mpa, and the oil pressure can be set at 6Mpa when the test is started

2.6. Bypass (user can choose)

The bypass is welded by steel plate, and the inner wall is equipped with protective wear-resistant lining plate.

2.7. Coal crusher monitor (user can choose)

The coal crusher monitor is used with the coal crusher, which can provide monitoring and protection for the normal operation of the coal crusher. It is suitable for all kinds of coal crushers at present. Its main advantages are: Using PLC as the monitoring core, high measurement accuracy, good anti-interference, reliable work, convenient field installation, etc. In field application, the node signal can be output to the centralized control room, which is suitable for centralized management of power plant.

An acceleration sensor and a temperature sensor are respectively installed on the left and right bearings. The transmitter box must be installed near the acceleration and temperature sensor (no more than 30m). The transmitter box and sensor must be connected by shielded wire. The shielding layer must be connected with the sensor shell. The monitoring box is installed in the central control room. If the monitoring box needs to be installed on site, the transmitter box and monitoring box can be combined into one box.

The acceleration signal generated by the vibration of the acceleration sensor is re integrated by the vibration transmitter, and becomes a 4 ~ 20mA current signal proportional to the displacement. The temperature sensor becomes a 4-20mA current signal proportional to the temperature through the temperature transmitter. Four 4-20mA current signals enter PLC, so PLC can monitor absolute amplitude value and temperature value of two bearings of coal crusher. In normal operation, the amplitude value generated by unbalance and impact load of coal crusher rotor is generally less than 0.03mm (single amplitude). When the amplitude exceeds the alarm value, the alarm signal will be sent out. When the amplitude exceeds the shutdown value, the shutdown signal is sent. Also, when the temperature exceeds the alarm value, an alarm signal will be sent out. When the temperature exceeds the shutdown value, the shutdown signal is sent.

 

3. Main technical parameters

The main technical parameters of HS series ring hammer coal crusher are shown in table 29-1, the main technical parameters of HSZ series ring hammer coal crusher are shown in table 29-2, and the main materials of coal crusher are shown in table 29-3

Table 29-1 main technical parameters of HS series ring hammer coal crusher

 

Mdoel Rated capacity Rotor diameter Rotor working length Feed size discharging size motor speed motor power general weight
t/h mm mm mm mm r/min KW (motor not included)
HS-100 100 810 760 350 30 740 55 4500
HS-200 200 1115 782 110 6800
HS-400 400 1065 200 8300
HS-600 600 1330 315 9500
HS-800 800 1604 400 12620

Note: the parameters in this table are conventional standards, and the actual data are subject to the general layout.

 

Table 29-2 main technical parameters of HSZ series ring hammer coal crusher

Mdoel Rated capacity Rotor diameter Rotor working length Feed size discharging size motor speed motor power general weight
t/h mm mm mm mm r/min KW (motor not included)
HSZ-100 100 810 760 350 30 740 55 4500
HSZ-200 200 1100 815 132 7700
HSZ-400 400 1370 1200 590 220 11600
HSZ-600 600 1585 315 15000
HSZ-800 800 1970 400 18000
HSZ-1000 1000 2300 560 21000
HSZ-1200 1200 3120 630 27500

Note: the parameters in this table are conventional standards, and the actual data are subject to the general layout.

 

Table 29-3 main materials for coal crusher

 

No. Name Materil No. Name Material
1 body Q235-A 6 hammer ring ZGMn13
2 cover Q235-A 7 crushing piece ZG40Mn2
3 bypass Q235-A 8 screen plate ZG40Mn2
4 siese plate frame Q235-A 9 feeder ZG40Mn2
5 main shaft 42CrMo 10 lining plate 16Mn

 

4. Selection method

The selection is mainly based on the type and humidity of broken coal, the particle size of feed and discharge of broken coal, and the production capacity of equipment.

 

5. Scope of supply

The scope of supply includes main engine, coupling, hydraulic control device, coupling, hydraulic control device, etc.