RU192496U1 - HAMMER CRUSHER - Google Patents

Abstract

The utility model relates to devices for grinding and can be used in various industries, in particular for the processing of lead-acid batteries (lead plates, lead paste, electrolyte and plastics (polypropylene, abs-plastic, pvc)). The technical result is to increase the reliability and manufacturability of the design of the hammer crusher. The hammer crusher contains a loading funnel (1), a housing (2) with side covers (3), to the inner side of which a sieve (12), an electric motor (4), a hammer rotor (6) made in the form of a bearing shaft (7) are attached internal (8) and external (9) disks, between which are located the axis (10), each with a set of hammers (11). On the case from the inside, at an angle of 40-50 ° against the direction of rotation of the rotor shaft, a cut-off knife (13) is installed with a gap of 1 mm relative to the rotor shaft. Nozzles (5) are installed on the housing, washing the space between the housing and the rotor cheek. 4 ill.

Description

The utility model relates to devices for grinding and can be used in various industries, in particular, for the processing of lead-acid batteries (lead plates, lead paste, electrolyte and plastics (polypropylene, abs-plastic, pvc)).

Various technical solutions for hammer crushers are known.

So, the RU patent for invention No. 2591078 is known (IPC В02С 13/286, В02С 13/02, В02С 9/00, published. 07/10/2016). The hammer crusher contains a housing with side covers, to the inside of which a sieve, an electric motor, a hammer rotor are mounted, made in the form of a bearing shaft with internal and external disks, between which there are axes, each with a set of hammers. At the bottom of the end wall of the crusher body is a fan casing made in the form of a snail. The grating space of the bottom of the crusher body communicates directly with the fan through a window located in the end wall of the crusher body.

Disadvantages: the place between the rotating part (the cheek of the crusher rotor) and the body is subject to intense wear, which leads to failure of the crusher.

Known hammer mill "Ford" of the American company "Myers Sherman" (Danilin, A.S. Production of animal feed abroad / A.S. Danilin. - M .: Kolos, 1968. - pp. 103-105, Fig. 56), consisting of a body, the bottom of which is installed at a slope towards the discharge pipe. On the opposite side of the discharge pipe in the side wall there are openings for suction of fresh air into the pneumatic network of the crusher. A sieve is attached to the inside of the housing cover. The crusher is driven by an electric motor coaxially with which an external fan and a hammer rotor are installed, made in the form of a hub with internal and external disks, between which there are axes, each with a set of hammers. The discharge neck is connected to the fan by a pneumatic channel made in the form of a closed metal sleeve.

The disadvantages of the hammer crusher are low throughput, as well as insufficient quality of the finished product.

Known RU patent for the invention No. 2317146 (IPC V02C 13/04, V02C 9/00, published. 02.20.2008). The hammer crusher contains a housing with a lid, to the outer surface of which a stone separator is attached, and to the inner surface there is a deck sieve made of two rings with grooves. Between them are parallel to each other and with a gap rods of square cross section with helical grooves that can be rotated in grooves of rings, an electric motor on the shaft of which an external fan and a hammer rotor are installed, made in the form of a hub with internal and external disks, between which are located axis, each with a set of hammers. The blades of the external fan are attached to the internal disk of the hammer rotor and are installed behind the deck sieve. Inside the hammer rotor, an additional fan with curved blades is installed on the motor shaft. The removable casing of the outdoor fan is made in the form of an Archimedean spiral. A flexible discharge sleeve is attached to the discharge pipe of the housing.

Disadvantages: the place between the rotating part (the cheek of the crusher rotor) and the body is subject to intense wear, which leads to failure of the crusher.

Also known is the ML201 hammer crusher (Italian company Engitec Technologies, www.engitec.com), which is by its technical characteristics closest to the proposed utility model and adopted as a prototype. The crusher contains a loading funnel, a housing with side covers, to the inner side of which a sieve is attached, an electric motor, a hammer rotor made in the form of a bearing shaft with internal and external disks, between which there are axes, each with a set of hammers (a total of 4 rows of oscillating hammers)

Disadvantages: the place between the rotating part (the cheek of the crusher rotor) and the body is subject to intense wear, which leads to failure of the entire crusher. In the process of crushing the batteries, paste and plastic fibers are stuffed into the space between the cheek and the body, forming a highly abrasive mixture, due to which there is intense wear of the rotor shaft (reduction in diameter) and abrasion of the side cheek.

Currently, all known designs of hammer crushers are characterized by intense wear on the cheeks and rotor shaft.

Thus, the technical problem that currently exists is the lack of reliability and manufacturability of known hammer crushers.

The creation of the proposed technical solution is aimed at solving this problem, namely, improving the design of the hammer crusher by increasing the reliability of the device (ensuring minimal wear on the space between the cheek of the crusher rotor and the casing).

The technical result is to increase the reliability and manufacturability of the design of the hammer crusher.

The technical result is achieved in that in a hammer mill containing a loading funnel, a housing with side covers, a sieve, an electric motor, a hammer rotor, made in the form of a bearing shaft with internal and external disks, between which there are axes, each with a set hammers, according to the utility model, on the case at an angle of 40-50 ° against the direction of rotation of the rotor shaft, a cut-off knife is installed, with a gap of 1 mm, relative to the rotor shaft. Wash nozzles are installed in the space between the housing and the rotor cheek.

The essence of the utility model is illustrated by the following graphic material: FIG. 1, which shows a general view of the crusher; FIG. 2, which is a side view; FIG. 3, in sectional view of the crusher rotor, and FIG. 4, which shows a view AA (cut-off “knife” and nozzle), where:

1 - loading funnel;

2 - case;

3 - side covers of the housing;

4 - electric motor;

5 - nozzles;

6 - hammer rotor,

7 - a bearing shaft;

8 - internal drives;

9 - external drives;

10 - axis between the disks;

11 - hammers.

12 - sieve;

13 - cut-off knife.

The hammer crusher contains a loading funnel 1, a housing 2 with side covers 3, to the inner side of which a sieve 12, an electric motor 4, a hammer rotor 6, made in the form of a bearing shaft 7 with internal 8 and external 9 disks, between which there are 10 axes, are attached with a set of hammers 11.

On the housing 2 from the inside, at an angle of 40-50 ° against the direction of rotation of the rotor shaft, a cut-off knife 13 is installed (with a gap of 1 mm, relative to the shaft 7). The knife 13 cuts off the paste and plastic, which adhere to the rotor shaft (abrading it), preventing further wear of the shaft.

On the body 2, nozzles 5 are installed, washing the space between the body and the rotor cheek. An electrolyte solution is supplied to the flat jet nozzles under a pressure of 2-3 kGf / cm ² . The pressure of the jet from the nozzles prevents the deposition of lead paste and plastic, thereby reducing the wear of the crusher.

Thus, the proposed hammer crusher has an improved design, namely, increased reliability, by ensuring minimal wear on the space between the cheek of the crusher rotor and the casing, and increased manufacturability and durability.

Claims (2)

1. A hammer crusher containing a loading funnel, a housing with side covers, a sieve, an electric motor, a hammer rotor made in the form of a bearing shaft with internal and external disks, between which there are axes, each with a set of hammers, characterized in that that on the case from the inside, at an angle of 40-50 ° against the direction of rotation of the rotor shaft, a cut-off knife is installed with a gap relative to the rotor shaft. 2. Crusher according to claim 1, characterized in that nozzles are installed on the housing washing the space between the housing and the rotor cheek.

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