SU710633A1 - Crusher - Google Patents

Description

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The invention relates to the grinding of bulk feed and can be used in the agricultural production and animal feed industry.

A grinder-free feed grinder is known, comprising a housing within which a rotor with flat hammers mounted on it and a deck are located, and a partition is installed inside the housing, dividing its cavity into two fractional chambers l, and there is an outlet outside the housing connecting one chamber to another.

This crusher with the successive communication of working chambers allows only increasing the processing time of the material, but does not change the magnitude of the dynamic destruction factors (for example, the impact rate) all the grinding way, which does not allow equally effective grinding of different strength and heterogeneous feed materials. In addition, there is no separation of small particles in the grinding process, which leads to their overgrinding and some increase in energy consumption.

The closest technical rip known is a crusher for grinding mainly dry fodder in agricultural production, which contains a stepped body, each subsequent stage in which is made of a larger diameter, coaxially located with the body, a stepped rotor having at each stage an impact body, a loading hopper and discharge pipe 2.

This solution limits the possibility of differentiating the processing time of different strength materials and the lack of separation of fine particles during the grinding process affects the uniformity of the fractional composition of the product.

The purpose of the present invention is to increase the efficiency of the grinding process of different strength and heterogeneous feed materials.

This goal is achieved by the fact that in a crusher for grinding mainly dry feed in agricultural production, there is a stepped body, each subsequent stage in which is made of a larger diameter, coaxially located with the body, a stepped rotor, at each stage a impactor loading hopper and a discharge pipe , the housing is equipped with partitions installed between adjacent steps and the forming grinding chambers communicating with each other by means of a bypass connection, in this case grinding Ks1me ry configured reaetchatoy side surface forming the cavity in the sieve casing and a discharge pipe connected to the end of the grinding chamber, counting during the movement of the material, and a sieve cavity. Figure 1 is a longitudinal section of the crusher; figure 2 - cross section. Fractional-scale is the case of If to which the loading hopper 2 and the nozzle 3 are connected to discharge the grinding products. Inside the housing 1 there are grinding chambers 4 and 5, a stepped crushing rotor with impact bodies 6 and 7 and a cavity 8, which is separated from the grinding mills with sieve surfaces 9 and 10. The grinding chambers 4 and 5, as well as the impactor b and 7 of the crushing plant the rotor has a stepped increase in diameter and is separated by a partition 11 and the first communicate with each other by means of an overflow pipe 12, the discharge pipe 13 is connected to the end grinding chamber, counting in the direction of movement of the material being processed At the end of the sieve surface 10, the discharge nipple 13 also communicates with the sublattice cavity 8. Otherwise (the drive, devices for controlling and controlling the loading, removal of products and organization of air circulation), the proposed crusher can be made similarly to known technical solutions. The crusher works in the following way. When the rotary rotor rotates with the shock bodies 6 and 7, it rotates the 1st material from the hopper 2 evenly into the grinding chamber 4 of a smaller diameter, where it subjects processing with the impact of the impactor 6 and moving with it along the rotation of the crushing rotor. The fine particles resulting from the grinding of the less durable part of the pre-processed material are sifted through the holes of the grating surface 9 into the sublattice cavity. The undetermined particles of material pass through the grinding chamber 4 and are directed through the grinding nozzle 12 to a larger diameter, where they are further processed as a result, jCKBHoro is more intensely exposed to the impact of the organ 7. The surface of the rocket 10 and in this grinding chamber facilitates the timely removal of small particles Works into the under cavity 8. Successively passing through the grinding chamber 5 of the second grinding stage, the remaining part of the product is thrown out through the window 13 into the discharge port 3. Through this pipe, the products from the undersize space 8 are sucked off by the fan 14 to through the separation system devices are fed into appropriate tara. If necessary, the crusher can be made with a large number of grinding stages. The regulation of the degree of grinding of the material can be accomplished by changing the pHaite or by chopping the speed of rotation of the crushing rotor. Crusher with a new set of features will provide effective grinding of different strength and heterogeneous feed materials, will improve the homogeneity of the fractional composition of products, reduce the yield of dust fractions and energy intensity of the process. The invention Crusher for grinding mainly dry feed in the agricultural industry, containing a stepped body, each; The leading step in which a larger diameter is made, a stepped rotor coaxially located with the body, a striking body sticking at each step, a loading hopper and an unloading pipeline, distinguishing the HHfSi mechanics for increasing the efficiency of crushing different strength and non-uniform KopivicBax materials adjacent steps to the shapetoinHMH grinding chambers, which communicate with each other by means of a by-pass nozzle, while the grinding chambers are made with a lattice side surface w, obrazukiey psdreshetnuyu cavity in the housing and a discharge nozzle connected to the end-milling hydrochloric camera counting during the movement of the material, and a sieve cavity. Sources of information taken into account in the examination of 1, USSR Copyright Certificate No. 412935, cl. 3 02 C 13/10, 1972. 2. USSR author's certificate №350510, cl. In 02 C 13/14, 1S70 (prototype).

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Claims (1)

Claim A crusher for grinding predominantly dry feed in agricultural production, containing a step housing, each subsequent step of which is made of a larger diameter, a step rotor coaxially located with the housing, having an impact body, a loading hopper and an unloading pipe at each step, characterized in that, for the purpose of to increase the crushing efficiency of diverse and heterogeneous feed materials, the body is equipped with partitions, tributes are installed between adjacent steps and forming grinding e chambers communicating with each other by means of an overflow nozzle, while the milling chambers are made with a lattice lateral surface forming a sublattice cavity in the housing, and the discharge nozzle is connected to the end milling chamber, counting along the direction of movement of the material, and with the sublattice cavity.