Hammer crusher today is an indispensable thing in industrial production. This is a device designed for crushing raw materials by hitting hammers on pieces of material, as well as grinding the particles together.
They are widely used in various industries and serve for crushing a wide variety of materials, ranging from sugar, spices, cereals to wood and rocks.
1 General information
Hammer crusher is used to grind a variety of raw materials: rock salt, gypsum, and other substances whose moisture content does not exceed 8%. This condition is related to the structural features of the device.
Principle of operation consists in the fact that the crushed material is fed through special grates, which can be clogged with wet raw materials. However, recently it is planned to produce hammer crushers that allow processing raw materials of any moisture content.
These devices began to be used in the last century. They were characterized by a low level of performance and a high degree material wear. Due to the rapid erasure of the working surfaces, they had to be changed very often. Used for processing not very solid raw materials.
The salient features of the hammer crusher are:
- simplicity of design;
- reliability;
- the ability to adjust the degree of grinding of the material;
- low energy consumption;
- continuity of work;
- small weight and dimensions of the device
1.1 The principle of operation of hammer mills
The device consists of a housing in which the rotor is placed. Percussion devices - hammers - are fixed on the rotor which process the supplied raw materials. The materials loaded into the crusher are crushed by hitting the hammers, as well as rubbing the particles together.
The crushed material is fed into the unloading device through the holes in the grate. Hammer crushers differ in the type of rotor, the length of which can reach 3000mm, with a diameter of up to 2000mm, impact hammers, with different performance engine power (maximum 1250 kW), etc., but the principle of operation remains the same - grinding of the supplied raw materials.
Device Specifications:
- diameter - 300 - 2000 mm;
- length - 200 - 3000 mm;
- productivity - up to 1000 tons per hour;
- engine power - 7 - 1250 kW;
- number of revolutions - up to 1000 revolutions per minute;
- the width of the slots in the grating - up to 25 mm;
- grinding degree - 10 -15 for single-rotor crushers, 30 -40 for double-rotor crushers
2 Popular crusher models
These devices are manufactured by different companies and have different characteristics, but their main distinguishing feature is the principle of operation and methods of their application. Below are some of the most requested ones.
2.1 Crusher Molot - 400
Molotkovy crusher series Molot - 400 is designed for grinding dry materials. Hammer crusher 400 is used in cooking (grinds sugar, spices, caramel), agriculture(grain, peas, rice), construction (slag, gypsum) and other industries.
Main advantages:
- convenient sieve change;
- low noise;
- low wear parts.
2.2 Hammer feed crusher DKM - 5
Crusher DKM - 5 is designed for grinding feed and mineral additives.
Widely used in agriculture to provide livestock farms. The device can operate in three modes: automatic, manual and adjustment.
Advantages:
- simple design;
- simple installation;
- long service life;
- low energy consumption.
2.3 Wood chipper
The principle of operation is. It is very popular in the sawmilling and logging industry. Suitable for wood chips, for wood, as well as for branches, large branches, etc. Allows you to produce different materials: shavings, sawdust, wood dust. Used to avoid the costs associated with the disposal of wood waste. In addition, the finished product can be used for further implementation.
The principle of operation and functioning of the device is based on the principle of grinding wood waste, which takes place in several stages:
- purification of raw materials from foreign materials and transportation to the main production;
- grinding of raw materials;
- formation of the obtained product by fractions, removal of particles that do not correspond to the general parameters;
- formation of finished products.
Hammer crusher MPS series - mechanical crushing machine continuous operation, operated in processes grinding, crushing, recycling mineral, technological raw materials, as well as similar brittle materials of medium strength by crushing rocks by blows of hammers.
Principle of operation: Feed material is continuously fed through the feed funnel into the crushing chamber. Crushing occurs due to the impact of raw materials on hammers, chippers with armor and grates. ground product wakes up through the holes in the grate.
To prevent regrindingmaterial in current practice enrichment hammer crushers are used, which work mainly by crushing and impact with additional abrasive and bending effects on the crushed material.
Impact crushing gives much more crushing effect, Unlike crushing crushing.
Hammer crusher excellent performance in production building materials, ceramics, asphalt fillers, concrete and in the grinding of glass, crushed stone, chalk (anhydrous), dolomite, fireclay, anhydrous metal salts.
The advantages of hammer crushers include:
- simplicity and compact design,
- sufficient reliability,
- work continuity,
- great performance,
- low specific energy consumption.
An increase in the degree of crushing of a hammer crusher leads to a drop in its productivity and an increase in energy costs.
Depending on the physical properties source material (hardness, moisture content, particle size distribution of incoming and outgoing material, etc.), specifications and design features crushers may change.
Crusher Can be installed both indoors and outdoors open area under a canopy. The height and design of platforms or support posts is determined based on the conditions of shipment of the material.
If the hammer crusher is installed directly on the foundation, a reinforced technological opening must be provided, corresponding to the size and location of the unloading device.
Hammer crusher. Product design
Hammer crusher is used in crushing coal, dried clay and other materials with low moisture content.
The main parts of the hammer crusher are: the frame, the driven rotor, the driven drum feeder and the vane deflector.
The steel frame of the crusher consists of the upper and lower parts connected by bolts; inside lined with interchangeable armor plates.
In the upper part, a six-cell drum feeder is installed, driven into rotation from the rotor shaft by means of a flat-belt transmission, a worm gear, a crank mechanism, a lever system and a ratchet wheel. The feeder feeds the material in portions into the crushing chamber.
Four disks are fixed on the rotor shaft, between which hammers are pivotally suspended. Three rows of hammers are placed along the length of the rotor, and the hammers of each row are shifted by 30° relative to the previous one.
The fan is used to create the air flow necessary for the ejection of dust grinding product through the window located at the top of the fan housing.
In the inner space of the truncated cone between the crushing chamber and the fan housing, a bladed reflector is placed, which prevents unground pieces from entering the unloading zone.
The rotor shaft is connected to the motor shaft by a gear coupling.
crushed product transported through a pipeline connected to the fan nozzle.
Crusher MPS 150- full hammer mini crusher, shock action.
The principle of operation of the MPS 150 hammer crusher.
The feedstock is fed into the grinding chamber through the loading flange. Feeding of feedstock can be carried out using screw or belt feeders, as well as manually, for this a receiving funnel is attached to the flange.
Inside the grinding chamber, a rotor with hammers (beats) hinged on it rotates continuously. The material entering the grinding chamber is destroyed due to impacts on hammers and armor located along the contour of the chamber. The raw material, being in the grinding chamber, acquires the desired size and wakes up through the gaps of the grate, which is installed in the lower part of the crusher body.
Full advantages of the MPS 150 hammer crusher design.
- The presence of a bearing housing (comparison with those units where the rotor is mounted on the motor shaft). Allows you to increase the grinding chamber, which gives increased productivity.
- The presence of a supporting frame. Provides mobility of a design, durability of operation, stability.
- The presence of interchangeable armor and hammers inside the grinding chamber. There is a possibility of long-term operation even on abrasive raw materials.
Competitive advantages of MPS 150 crusher.
- low energy consumption.
- compactness, mobility.
- increased performance.
- absolute maintainability.
- unpretentiousness, simplicity of design.
- low noise level during operation.
Hammer crusher MPS 150 has been produced since 2006 and has already proven itself when working with specific materials.
List of materials.
- red brick (waste)
- caked pigment
- car pads
- basalt
- fireclay
- foam concrete (aerated concrete)
- chemical reagents
- fertilizers (dry)
- glass (obtaining dust, also crushing whole bottles to a fraction of 0-50 mm)
- food products (crackers, corn, peas, coffee beans, etc.).
If you did not find your own in the list of materials, then we offer a trial grinding service absolutely free of charge.
Service life, spare parts resource, maintenance cost of MPS 150.
Crusher MPS 150 is designed for operation for more than 10 years up to overhaul(replacement of the shaft, bearings, etc.). To date, the crusher has worked in production for a maximum of 8 years without cap. repair. In addition, the crusher is provided with a 1-year warranty from the date of commissioning.
Crusher hammers are made of tool steel and therefore designed for long-term operation, but the actual resource always depends on the material being processed. The cost of a set of hammers is 5,350 rubles including VAT.
Specifications of MPS 150 crusher.
| Parameter | Meaning |
| Estimated productivity, t/h | 0,5 - 1,5* |
| Rotor diameter, mm | 217 |
| Working length of the rotor, mm | 150 |
| Incoming fraction dn, mm | 50* |
| Outgoing fraction dk, mm | -1 ÷ -10* (adjustable) |
| Rotor speed, rpm | 1500 |
| Electric motor: | |
| type of | 4А90L4У3 |
| power, kWt | 2,2 |
| speed, rpm | 1500 |
| voltage, V | 380 |
Hammer crusher- a mechanical crushing machine used for the destruction of pieces, grains and particles of mineral raw materials and similar materials, by crushing the rock with the blows of hammers hinged on a rapidly rotating rotor, as well as by breaking the pieces when they hit the plates of the crusher body.
Hammer crushers allow you to grind a variety of raw materials from quarry rocks to man-made waste.
Feedback on hammer crushers from our customers
Description and principle of operation of hammer crushers
The material is fed into the grinding chamber and, due to the rotation of the shaft with hammers, is crushed to sizes smaller than the gaps on the grate. During crushing, the required fraction wakes up through the gaps of the grate and enters the unloading box.
The basis of hammer crushers is a rotor with impact elements (beaters, hammers) fixed on it. hallmark between hammer and impact crushers is the method of attaching impact elements to the shaft. On hammer crushers, the hammers are hinged. This fact allows to reduce energy consumption during crushing of solid materials due to the "floating" of the hammer in the air. Thus, it becomes possible to break the material in the grinding chamber not from the first time, but from the next. In rotary crushers, when a raw material that is not crushed from the first blow enters the grinding chamber, jamming occurs.
hammer mill mechanism
Mechanism of action hammer crushers simple but effective: the raw material is continuously fed through the feed funnel, where it is crushed by hammers, armor strikers and grates. The crushed material falls down through the holes in the grate and enters the unloading device.
Main Features of Hammer Crushers
- Adjustable degree of crushing of material.
- The small size of the crusher allows it to be used in mines and small spaces.
- Low energy consumption with high performance.
- No need for the construction of a capital foundation.
Scope of hammer crusher
Hammer crushers are used for crushing a wide variety of raw materials: mineral rocks, technological waste, chemical raw materials. They are highly valued in the production of building materials, ceramics, asphalt fillers, concrete, as well as in the grinding of glass, crushed stone, chalk (anhydrous), dolomite, fireclay, anhydrous salts, metals.
The main sectors of industry using hammer crushers are:
- Mining industry: crushing of quarry rocks, obtaining crushed stone, grains.
- Chemical industry: crushing of various reagents - salts, fertilizers, caked chemicals.
- Metallurgical industry: crushing of ferrochrome (added in the production of stainless steels), crushing of metallurgical slag.
- Construction industry: crushing broken bricks and many other types of construction waste.
- Glass industry: crushing broken glass.
In addition to the above, hammer crushers are used as a preliminary stage in the preparation of material for fine grinding.
Technical characteristics of hammer crushers.
The characteristics of hammer crushers may vary depending on:
- type of crushed material, its hardness, humidity;
- equipment installation sites (room, shaft, open space);
- the required productivity, the required degree of crushing;
Our team of specialists is able to design hammer mills according to all customer requirements.
Hammer crusher catalog
OAO Tula Machines manufactures equipment High Quality and reliable design at an affordable price, in addition, our design office will always select the right crushing equipment options for you, saving you time and money.
Prices for hammer crushers from 123,500 rubles.
A small list of materials for crushing: glass, concrete, chalk (anhydrous), dolomite, fireclay, salt, polymers (some types), as well as man-made raw materials and products of chemical industries.
Photo crusher MPS-150
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Specifications MPS-150 |
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| Options | Values | |
| Productivity, t/h | up to 1.0 | |
| Rotor speed, rpm | 1500 | |
| Rotor diameter, mm | 220 | |
| Rotor length, mm | 150 | |
| The maximum size of the loaded material dn, mm | 30-50 | |
| until 3 | ||
| Electric motor: | ||
| power, kWt | 2,2 | |
| speed, rpm | 1500 | |
| 800x359x488 | ||
| Crusher weight, kg | 127 | |
Find out the conditions for obtaining individual discount 8-800-700-46-86 .
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Standard crusher. It can be used both for crushing broken bricks and for crushing glass. Differs in low specific power consumption.
Photo hammer crusher MPS-200
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Specifications MPS-200 |
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| Options | Values | |
| Estimated productivity, t/h | Up to 3.5* | |
| Number of revolutions, rpm | 1500 | |
| Outgoing fraction d to, mm | from 0.5 to 5** | |
| Rotor diameter, mm | 460 | |
| Rotor length, mm | 200 | |
| Incoming fraction d n, mm | 30-90** (more brittle material can be fed in larger fractions) | |
| The size of the resulting material dk, mm | 2-10** | |
| Electric motor: | — | |
| power, kWt | 7,5 | |
| Rotation frequency, rpm | 1500 | |
| Voltage, V | 380 | |
| Crusher overall dimensions (LxWxH), mm | 1318x798x782 | |
| Weight, kg | 524 | |
Find out the conditions for obtaining individual discount and you can find out the prices by phone 8-800-700-46-86 .
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Crusher MPS-300L is designed for grinding mineral and technogenic raw materials with an average hardness of up to 7 units on the Mohs scale and a melting point of at least 150 degrees C. The crusher has proven itself in the production of building materials.
Photo Hammer crusher MPS-300L
Specifications MPS-300L
Find out the conditions for obtaining individual discount and you can find out the prices by phone 8-800-700-46-86 .
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One of the most popular modifications of our hammer crushers. Moderate energy consumption coupled with simple design is the main criterion for the crusher. This crusher has found its application in the production of building materials, as the primary stage of crushing, as well as for recycling construction waste.
Photo hammer crusher MPS-600
Specifications MPS-600
Find out the conditions for obtaining individual discount and you can find out the prices by phone 8-800-700-46-86 .
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MPS 630 - a heavier version of hammer crushers, can be used in quarries for crushing minerals. Easy access to the grinding chamber ensures easy replacement of consumables.
Photo: (Belt drive) of MPS-630 hammer crusher
Photo: (Coupling connection) crushers MPS-630
Specifications MPS-630
Find out the conditions for obtaining individual discount and you can find out the prices by phone 8-800-700-46-86 .
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High performance hammer mill. Used in many industries. It has established itself as a reliable and unpretentious design.
Photo hammer crusher MPS 950
Specifications MPS-950
Find out the conditions for obtaining individual discount and you can find out the prices by phone 8-800-700-46-86 . and you can find out the prices by phone
Find out the conditions for obtaining individual discount and you can find out the prices by phone 8-800-700-46-86 .
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* — Parameters may vary depending on the physical properties of the material.
** - Depends on the requirements of the Customer. The size of the resulting fraction depends on the gaps of the grate, and the grate is made with a minimum gap of 1 mm.
Crushing complex based on hammer crusher
When feeding raw materials for crushing, it is important not to overload the hammer crusher. This will require a feeder with a smooth and continuous feed, preferably when designing crushing plant provide feed adjustment. It should be taken into account that the fraction of the starting material can reach 150-200 mm. (only for MPS 600 and larger) of course these pieces should not exceed 30% of the total weight of the product. Due to this condition, we come to the conclusion that the screw type of feeder is not suitable, because. the auger feather will jam, but the Belt Feeder is ideal. In addition, with the help we solve another problem - the supply of raw materials must be evenly distributed throughout the grinding chamber for uniform wear of impact hammers.
For the shipment of crushed raw materials, we can apply. This choice will ensure the absence of dusting, and will also be able to raise the crushed material to a height for the convenience of further transshipment of raw materials.
Rubber seals, soft inserts are used to suppress dust formation in the places of overflow, it is also possible to use aspiration units for local dust collection.
If there are metal inclusions in the material, it is obligatory to install a magnetic separator above the feed belt. The ingress of non-crushable material into the grinding chamber can lead to equipment failure.
AT without fail in the crushing complex, it is necessary to take into account the fuse system in the control panel, as well as additional automation to ensure uninterrupted operation and prevent emergencies.
This scheme is classic for the standard case, but it is always better to seek advice from Tula Machines specialists. We can always choose the optimal layout, as well as design and supply a crushing complex.
