HOW DOES A HAMMER MILL WORK?

Hammer mills work on the principle that most materials will crush, shatter, or pulverize upon impact using a simple four step operation:

1.Material is fed into the mill’s chamber typically by gravity.
2.The material is struck by ganged hammers (generally rectangular pieces of hardened steel) which are attached to a shaft which rotates at a high speed inside the chamber.  The material is crushed or shattered by the repeated hammer impacts, collisions with the walls of the grinding chamber as well as particle on particle impacts.
3.Perforated metal screens, or bar grates covering the discharge opening of the mill retain coarse materials for further grinding while allowing properly sized materials to pass as finished product.
4.Hard, heavy materials such as glass, stone or metals exit the mill via gravity. Pneumatic suction us used to assist in the discharge of lighter materials such as wood, paper or other low bulk density products.

Varying the screen size, shaft speed or hammer configuration can dramatically alter the finished size of the product being ground.  For example, faster speed, a smaller screen, and more hammers result in a finer end product.  Each component can be changed individually or in any combination to produce the precise grind required.  All of this is determined by taking advantage of our free test grinding service.

Contact: Emily
Email:emilyzhang@sdshuanghe.com
www.shpelletmill.com

Large Capacity Hammer Mills

Hammer mills are such equipment to reduce the size of wood chips to wood dust. When making wood pellets or briquettes, you possiblely will need one hammer mill if your raw material are wood chips,straws, stalk, tree branches and etc.

Straw, stalks or other biomass are shredded and pulverized by hammers over and over again till they are small enough to go through the screen. The finished size of the material can be set up and adjusted by using the appropriate changeable screens.

Double Crane Machinery has inexpensive hammer mills to work with small pellet presses. They are either powered by electric motor or diesel engine, or even both electric and diesel engine on one machine.

 Spare parts are hammers, mesh.

Contact person:Emily
Email: emilyzhang@sdshuanghe.com
www.shpelletmill.com

hammer mill-feed processing machine on sale

Hammer Mill is widely used on the feed processing field in the world. It can be widely used to grind various type of materials, like corn, wheat stem, corn stalk, peanut stem, rice husk, grass...etc.This series hammer mill crusher is designed with reasonable structure, durable for use and easy for operation, it is a good machine for farm and feed processing factory.

This type hammer mill can be equipped with different type feeding device, it adopts symmetrical arrangement.When running the machine,the raw material will be put into the grinding chamber, under the friction function of hammer,the raw material will be grinded gradually.Then, the final products will be discharged from the bottom outlet under the function of centrifugal force and air flow.This type Hammer Mills is made by high quality steel, which can be well used for long time.

The small type hammer mills is popular in the farm. Since the first generation this type hammer mills had been widely used in the home and international market. Up to now, this hammer mill has been exported United States, UK, Spain, Philippines, Sri Lanka'Myanmar, Brazil, its good quality has win us good reputation in the world.

Contact person:Emily

Email:emilyzhang@sdshuanghe.com

www.shpelletmill.com

feed pellet processing line

Hammer mill consists of feed inlet , hammers, screen, rod and rotor. The hammers swing on the central rotor freely .The rotor spins at a high speed while material is sent into a feed hopper. The material is impacted by hammers and is thereby grinded and then falling through the mesh and the discharging port. It is widely used in foodstuff, chemical , fiber and other granular materials.

Horizontal Mixers

3.1.1 Continuous ribbon mixers

The continuous or "twin-spiral" mixer consists of a horizontal, stationary, half-cylinder with revolving helical ribbons placed on a central shaft so as to move materials from one end to the other as the shaft and ribbon rotate inside (Figure 2). Capacity can be from a few litres to several cubic metres. The speed of shaft rotation will vary inversely as the circumference of the outer ribbon; usually optimum between 75-100 metres per minute. Since material travel is from one end to the other, either end may be used for discharge. These mixers may be inverted for cleaning.

3.1.2 Non-continuous ribbon mixers

Non-continuous or interrupted ribbons are similar to the continuous ribbon mixers except that short sections called "paddles" or "ploughs" are spaced in a spiral round the mixer shaft. Action is different from that of continuous ribbon mixers, and may be more satisfactory for mixing liquids with dry solids. These mixers are made in a wide variety of sizes with travel of the outer diameter of paddles from 100 to 120 metres per minute.

Fig. 2 Continuous ribbon mixer

The transformation of a soft, often dusty feed into a hard pellet is accomplished by compression, extrusion, and adhesion. The general process involves passing a feed mixture through a conditioning chamber where 4 to 6 percent water (usually as steam) may be added. Moisture provides lubrication for compression and extrusion and in the presence of heat causes some gelatinization of raw starch present on the surface of vegetative ingredients, resulting in adhesion. Within 20 seconds of entering the pellet mill, feed goes from an air-dry (about 10-12 percent moisture) condition at ambient temperature, to 15-16 percent moisture at 80-90°C. During subsequent compression and extrusion through holes in a ring' die, friction further increases feed temperature to nearly 92°C. Pellets discharged onto a screen belt of a horizontal tunnel drier or into a vertical screened hopper are air-cooled within 10 minutes to slightly above ambient temperatures and dried to below 13 percent moisture.

Contact :Emilyzhang

Email: emilyzhang@sdshuanghe.com

www.shpelletmill.com

How do wood hammer mill works?

Wood hammer mill crusher is a kind of machine by using the high speed rotary hammers to crush the feed;all kinds of coarse fiber materials such as wood chips,straw,wood branches, corn stalks,rice husk,palm fiber,weeds and so on. Crushing the most important section in guaranteeing the quality of the particles and deciding the production capacity in feed pellet and wood pellet production process.

It’s die mold is made of stainless steel.wood hammer mill has the features of compact structure, high efficiency, widely used in many areas and safe in use.  

Wood hammer mill is made up of base, rotor, fan and upper cover.Materials fall into the crushing room through feed inlet. They are crushed under the action of high speed rotating hammer blowing and screen friction, go through the screen hole and discharge from the outlet under the action of centrifugal force and flow.

Contact: Emilyzhang

Email:emilyzhang@sdshuanghe.com

Skype:double.crane

www.shpelletmill.com

Feed grinder and mixer

Feed grinder and mixer, animal feed grinding and mixing machine, fodder grinder and mixer 
1.combination of animal feed crusher and mixer
2.crushing and mixing all kinds of dry animal feed 
3.high efficiency and energy saving 

This machine can be used to crush all kinds of cereal, grain, like corn, wheat, bean, and others to powder that can make animal feed or for other process, it has the crush and mix function at the same time, very convenient and easy to operate.It is used to crush and mix animal feed for pig, chicken, sheep. Cow.This machine has functions of crushing and mixing. 

The machine consists of a feeding machine, grinder, mixer consists. It can be used to crush all kinds of cereal, grain, like corn, wheat, bean, and others to powder that can make animal feed or for other process, it has the crush and mix function at the same time, very convenient and easy to operate 

Contact person:Emily

Email: emilyzhang@sdshuanghe.com

Skype:double.crane

www.shpelletmill.com

Working Principle of single shaft screw mixer

Working principle of feed mixer
1. Working with two screws and one shaft, it is given short mixing cycle (3 minutes) and high mixing homogeneity (CV≤5%, 3% available);
2. Large and full length discharging door at the bottom of this mixer, make the mixer quick discharging and low residue. Also ,three types of operation for selection : manual operation, electric and steam driving, with high veracity and tightness;
3. The single shaft screw feed mixer is screw mixer, also can be changed to paddle mixer, any kinds of liquid can be added in mixing of the machine;
4. Equipped with double-deck mixing bin, the single shaft screw mixer can better prevent materials from leaking out from the end of shaft; 
5. New designed rotor structure, with adjustable gaps to the machine body, which ensure the mixing well-distributed, and more thoroughly;
6. With super quality bearing high balanced horizontal shaft, it keeps the whole mixer working stable with high efficiency;
     

Main advantages of feed mixer:
The single shaft screw feed mixer owns such advantages like : compact structure, beautiful shape, easy operation , high efficiency , stable performance , low noise, no dust and environmental protection etc..

Application of feed mixer
Applied for various materials and widely used in many industries such as premix feed mill, additives, feed mill, chemicals and pharmacy. 

Contact person:Emily

Email: emilyzhang@sdshuanghe.com

Skype:double.crane

www.shpelletmill.com