SU1121036A1 - Hammer liquid mill - Google Patents

Abstract

1. MOLOTKOVYY LIQUID MILL, comprising a case with you inlet holes in the side walls, a rotor with / J hingedly fixed hammers, armor plates, a trap. loading hopper, pipe for feeding the liquid phase and unloading trays, characterized in that, in order to increase the grinding efficiency by increasing the degree of turbulization of the liquid flow, an outwardly expanding hollow is made on the working surface of each hammer, and parallel to the inside of the body between the unloading trays Wavy ribs are mounted to the side walls of the case and with a gap relative to the front wall. 2. Mill according to claim 1, characterized in that the outlet (L holes have a grille. 12

Description

The invention relates to a device for grinding, in particular to the drilling of oil and gas wells, and can be used in drilling for the preparation of solutions from both conventional and old cements containing, along with the powdery part, a significant amount of pelletized material, as well as for preparing solutions from other as powdered., - and pelletized materials.

A device for crushing clod materials is known, comprising a housing with elongated outlet openings, closed exit grids, in side walls, a rotor with hingedly fixed hammers located therein, armor plates, a trap, a feed funnel, a water inlet and discharge trays Tjl.

However, this device is characterized by the low efficiency of the grinding process of stale (pelleted) cements and the insufficient effectiveness of their activation in the process of preparing cement slurries.

The closest technical solution to the invention is a hammer liquid i / .tna mill, comprising a housing with outlet openings in the side walls, a rotor with hinged hammers, armor plates, a trap, a hopper, a pipe for feeding the liquid phase, discharge trays 2J.

However, this device is also characterized by low grinding efficiency due to insufficient turbulence arising in the liquid stream circulating in the mill housing during operation. The low turbulence of the liquid flow is due to the fact that the rotor hammers are made with a flat working surface (front in the direction of rotation).

The purpose of the invention is to increase the grinding efficiency by increasing the degree of turbulence in the liquid flow.

This goal is achieved by the fact that in a hammer liquid mill containing a body with outlets in the side walls, a rotor with hinged hammers in it, armored plates, a trap, a hopper.

a pipe for feeding the liquid phase and discharge trays, an outward-expanding depression is made on the working surface of each hammer, and wavy ribs are mounted inside the case between the discharge trays parallel to the side walls of the case and with a gap relative to the front wall.

In addition, the outlets have grills.

FIG. 1 shows a mill, a sectional view in FIG. 2 is a view A of FIG. one; in fig. 3 section bb in fig. 1 in FIG. 4 - section BB in FIG. one.

The mill consists of a housing 1 and a rotor 2 with hinged hammers 3. In the upper part of the housing there is a loading hopper 4, a nozzle 5 for supplying a liquid phase, a distributing contour frame 6, output grids 7, covering outlet openings, discharge trays 8, wavy ribs 9 fixed with a gap to the front wall of the case. Armor plates of the first stage 10, trap 11, a flap bottom 12 and armor plates of the second stage 13 are located in the lower part of the hull. Hammers 3 are made with expanding outer edges on the working surfaces.

The principle of operation of the device is as follows.

Powdered or pelletized materials (dead cement, crushed clay powder or iron, etc.) are continuously fed into the mill through the feed hopper 4, and water or a solution to be treated is fed through the nozzle 5. Due to the presence of a distribution contour frame 6, the liquid phase evenly washes the walls of the hopper and thus prevents material from sticking to them. I

The powdered material is effectively mixed in a liquid-phase machine. The lumpy material, the pad down, is subjected to repeated impacts of the hammers 3 of the rotor and is additionally bonded on the surface of the armor plates of the first 10 and second 13 stages. Further grinding of the material occurs when moving the liquid flow circulating in the mill housing under the influence of a rotating 3 state rotor, between wavy ribs 9 attached with a gap to the front wall of the housing. Due to the ripple of the ribs, the flow moving between them seems to be subjected to alternate compression and expansion, and the particle contained in it is effectively abraded, both on the surface of the ribs and on one another. The presence of a gap between the wavy ribs and the front wall of the mill casing provides lateral movement of the processed mass in the casing, which also improves the grinding efficiency and improves the conditions for discharging the crushed product from the mill, which is carried out through the output grids 7 and discharge chutes 8. Increase the degree of turbulization in the mass to be treated, the presence of hammers and outward-extending cavities on the working surfaces also contributes to the grinding efficiency. When the hammers are rotated in a liquid medium, streams flow to the rotor hammers and exit. (Cie from the hollows when the liquid phase flows around their surfaces. When preparing solutions from stale pelleted cements in the mill, lumps are intensively crushed, but cement is also efficiently activated. Metal inclusions that can get into the machine along with the material being processed are thrown by the rotor hammers into the trap 11, from which they, as they accumulate, are removed when the flap is opened. 1 2.. The Hammer Liquid Mill offered allows for greater grinding efficiency by increasing the degree of turbulence in the liquid flow.

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Claims (1)

1. HAMMER LIQUID MILL, containing Fig 1 SU-11121036 1 1121036