I. Overview
There are more than 4 million hectares of grassland in China, with an annual output of about 100 million tons of hay. In addition, there are about 52,200 hectares of fencing in Caofang, which can produce about 1.56 million tons of fresh grass. With the implementation of returning farmland to grassland, animal husbandry will certainly develop in an intensive manner. Pasture processing is slow to develop due to factors such as processing equipment, energy, feeding habits, production, and management methods. U.S. produces more than 2 million tons of alfalfa meal annually as a feed ingredient. At present, the forage processing equipment used in China mainly consists of smashing block brick presses with various special recipes and ring-shaped pellet mills with slightly added grass particles. The MYYK800 briquetting machine newly developed by Muyang Group in this article is a new briquetting machine with a novel shape, compact structure, and reasonable structure. It is mainly used for the processing of cattle foragegrass feed, such as barnyardgrass and straw. The stalks of straw before entering the briquetting machine are simply smashed into 5cm (applicable to harder grass) or 7.5 to 12cm (applicable to looser and long-fiber grass), and the volume of water is 8 to 12%, then the briquette The machine is pressed into different sizes of square grass blocks. The briquetting machine is being used in the pastoral areas.
Second, the main structure and working principle
The structure of the machine is mainly composed of feeding conditioner, combination die, eccentric pressure plate, spindle, feeding device, discharging device, iron removing device, transmission device and frame. The working principle is that the fodder containing a certain amount of moisture enters a group of concentric inner and outer cylinders and is transmitted to the circular distribution die hole groove in a wheel direction. The mountain street which rotates with the main shaft is provided with a spiral piece on the outer circle; It is stationary, and there are spiral blades on the outside. The rotation is opposite to the foreign upper door of the inner cylinder. The forage material is squeezed by the advantages of the eccentric pressure plate in the die hole, and extruded from the radial direction at the beginning. The length of the extruded block is set at the beginning of the mold; adjustable cone-shaped steering ring control. During the extrusion process, due to the heat generated by friction, the temperature of the stamper increased to about 82°C.
Third, the main technical parameters with performance indicators (see right person)
In the table, the square grass block pressed by the die hole 2222 (mm) is suitable for the square grass pressed by the sheep and the small animal edible die hole 3229 (mm). The standard traditional size is suitable for eating cattle and horses.
Molded hole 3273 (mm) is a block size designed for feeding cows, the grass fiber is longer (7.5 ~ 12cm), the grass is softer to facilitate chewing.
Main motor power (KWA)
75KW2
Platen diameter (mm)
550
Feed conditioner motor power (KW)
3
Die inner diameter (mm)
800
Spindle speed (rpm)
135
Die size (mm)
3229 (also available with 2222, 3273)
Feed conditioner speed (rpm)
0 to 84 stepless adjustable
Number of stampers (only)
66
Yield (t/h)
5-8
Mold temperature (°C)
82 or so
Dimensions (mm) (4285 to 5205) 21002950, ​​size range in parentheses for feeding conditioner lengthened
Fourth, the structural characteristics
l. The machine adopts dual motors, two pairs of two corner belts and a synchronous video tape step transmission system. It has the advantages of accurate transmission ratio, driving torque, smooth and reliable transmission, and low noise. And can meet the requirements of a variety of different powertrain combinations.
2. In the briquetting device, a platen eccentrically mounted with the main shaft is used. As the main shaft rotates, the platen presses the material out of the radial distribution pressure simulation to see that it is extruded. The eccentric transmission is compact in structure and reliable in operation.
3, using two concentric inner spiral blades. A simple feed device, which can effectively feed the straw axially into the die cavity. The feeding device has a simple structure, accurate feeding position and direction, and is not easy to block material.
4, the combination of die hole is a square or rectangular shape, a large open rate. According to different specifications of the size of the hole to calculate the hole rate can reach 65 to 85%.
5, using frequency control motor feeding, can accurately and flexibly control the output.
6. It is equipped with feeding conditioners that are not easy to be blocked and can be sprayed with water, and can effectively adjust the moisture content of the forage according to the process requirements of Jiading.
The WBSS single head briquetting system is a set of straw bales designed to handle bales of any size, bulk, or chopped pasture to form blocks for feeding cattle, horses, sheep, camels, and other animals in the farm. Equipment. From the grinding machine to the abrasive and re-entering the metering box, the series is dust-free. The metering box provides uniform hay for the briquetting machine. The maximum metering capacity is 6 to 9 tons per hour. The extruded block then enters the cooling tank to cool down to ambient temperature while removing 2-3% of humidity. The blocks are then sent to a stacker or packaging system, which can become an integral part of the system.
Grass blocks are easy to transport with stacks or stacks of 30 to 500 kg
Grass blocks are easy to ship with container outlets
Grass blocks can contain a complete mixing ratio
Grass blocks can open up new markets and long-distance transportation is economically reasonable
Grass blocks contain nutrient-rich leaves and stalks to improve feed quality.
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