UA14479U - Method of supplying the source material into the direct-flow grateless hammer mill - Google Patents

Abstract

Method of supplying the source material into the direct-flow grateless hammer mill, in which the adjacent wall of loading and unloading branch pipes is executed at an angle towards the rotation of hammer rotor, moreover the adjacent wall from the side of unloading heap is equipped with adjusting shutter of the air flow and is located with possibility of displacement of the lower edge of adjusting shutter in the direction of the vertexes of the front angles of hammers, when they are in upper vertical position. Aspiration pressure is created under operating conditions of the said crusher with the help of the adjusting shutter of the air flow at the entrance of the crushing chamber, due to which is simultaneously performed the acceleration of the supply of the source material both at an angle towards the rotation of the hammer rotor and in the direction of its counter collision with the hammers.

Description

Description of the invention

The useful model refers to the technique of agricultural engineering and can be used, 2 mainly, in the conditions of farms of agricultural production, as well as at enterprises of the food and compound feed industry and in other branches of the national economy.

An analogue for implementing the proposed method can be a hammer crusher according to (Association of the USSR Mo449737, vOo2S13/04, 1974).

The described hammer crusher provides crushing of the raw material in a direct-flow cycle, but it cannot provide the technical result of the proposed useful model.

The closest analogue for implementing the proposed method can be a hammer crusher | application

Ukrpatent Moshi 200508573, 20051.

The described hammer crusher provides grinding of the raw material in a direct-flow cycle and has a device that ensures the implementation of the proposed method. 12 The task of the proposed useful model is to achieve a technical result, which consists in ensuring at the entrance of the crushing chamber the acceleration of the feed of the source material at an angle to the rotation of the hammer rotor, while it was experimentally established that the proposed useful model in the process of its use provides the following technical and consumer properties: - creation of aspiration pressure at the entrance of the crushing chamber due to the interaction of the regulating valve with the exhaust air flow, which before exiting the crushing chamber is tightened by hammers for circulation; - acceleration of the feed of the source material at an angle to the rotation of the hammer rotor due to the use of aspiration pressure, which is created at the entrance of the crushing chamber; - increasing the speed and intensity of the destruction of the source material due to its acceleration and 29 counter-impact with the hammers at the entrance of the crushing chamber, and due to this, the force of destruction decreases and, accordingly, the energy consumption and the limit of grinding size is expanded.

The essence of the proposed useful model is that during its use with the help of an air flow regulating valve, due to its location relative to the hammer rotor, loading and unloading nozzles and the use of its interaction with the spent air flow circulating around the circle of the crushing chamber, at the entrance of the crushing the chambers create an aspiration pressure due to which the supply of the source material is simultaneously accelerated both at an angle towards the rotation of the hammer rotor and under counter-impact with the hammers, while the destructive speed M of the source material is determined by the formula: "I

Ortom Ov;

Zo de or - the destructive speed of the source material before its counter impact with the hammers, m/s; -- ohm - Circular speed at the ends of the hammers, m/s;

Ов - Velocity of the flow of the source material before its collision with the hammers, m/s.

The essence of the proposed method is explained by the drawing, which schematically shows a straight-flow grateless "70 Hammer crusher without a receiving hopper and an unloading device. в-в с Direct-flow grateless hammer crusher for the implementation of the proposed method includes: a body 1, inside which a hammer rotor 2 with hinged plate hammers is installed, and: in each disk of the hammer rotor 2 holes 3 are made, which are located around its shaft for maximum using from the end of the hammer rotor 2 aspiration pressure, which is created between the disks of the hammer rotor 2 during its rotation; rib tray 4; annular protrusions 5, which are located on the inner side walls of the housing 1 in the plane of the outer discs of the hammer rotor 2, and on the upper part of the housing 1 there are adjacent loading 6 and unloading 7 nozzles, the adjacent wall 8 of which is made at an angle to the rotation of the hammer rotor 2, and on the side of the discharge nozzle 7, it is equipped with an air flow control valve 9, which divides the inner cavity of the upper part of the housing 1 into the inlet and outlet 5r of the cavity of the crushing chamber, and the adjacent wall 8 is made with the possibility of moving the lower edge - the control valve 9 in the direction of the tops of the front corners hammers in their upper vertical position,

Ge; at the same time, the loading nozzle 6 is equipped with a control valve for the feed of the source material 10 and a magnetic separator 11.

Based on the above, the proposed method is carried out using the described crusher as follows.

In the idle mode of the hammer crusher, the raw material supply control valve 10 is slowly opened by hand to an amount equal to the optimal load of the electric drive of the crusher, while the raw material flows by gravity through the loading nozzle 6 and due to the aspiration pressure created by the air flow control valve 9 during its interaction with a part of the spent air flow, which is drawn by the hammers to circulate around the crushing chamber, which ensures the supply of raw material at the entrance of the crushing chamber at an angle to the rotation of the hammer rotor 2, as well as the acceleration of the supply of the raw material under its oncoming impact with the hammers. From the initial blows of the hammers, the working mass goes to the upper part of the rib deck 4, on which it is additionally destroyed and pushed back under repeated blows of the hammers, which simultaneously directs it into a circular movement, in which the annular protrusions 5 in communication with the hammers continuously direct the working mass under 65 the most effective part of the working organs (hammers and rib deck) and thanks to this, grinding of raw materials with the required coarseness and uniformity of grinding products is ensured in a direct flow cycle (without sieves). Further, due to the action of inertial forces and air flow, the pile is directed through the discharge nozzle 7 into the baghouse, which is not shown in the drawing.

The coarseness of the grinding product is regulated by the valve 10 in the working mode of the hammer crusher by changing the feed rate of the raw material.

Claims (1)

Formula of the invention 70 The method of supplying raw material to a direct-flow grateless hammer crusher, in which the adjacent wall of the loading and unloading nozzles is made at an angle to the rotation of the hammer rotor, and the adjacent wall on the side of the heap discharge is equipped with an air flow regulating valve and is located with the possibility of moving the lower edge of the regulating valve in the direction of the tops of the front corners of the hammers in their upper vertical position, which is distinguished by the fact that during the operating mode of the specified crusher, with the help of an air flow control valve at the entrance of the crushing chamber, aspiration pressure is created, due to which the feed of the source material is simultaneously accelerated as at an angle towards to the rotation of the hammer rotor, as well as to its counter-impact with the hammers, while the destructive speed of the starting material is determined by the formula: Ortov, where or is the destructive speed of the starting material before the oncoming c by half-hitting it with hammers, m/s; this 7 Circular speed at the ends of the hammers, m/s; зв - velocity of the flow of the source material before its collision with the hammers, m/s. that 2 (o) in « « yo - and? - sh» sh» -i 3e) 60 b5