RU2150329C1 - Settling tank for cleaning cutting fluid - Google Patents

Abstract

FIELD: machine engineering, possibly plants where it is necessary to clean cutting fluids and other technological liquids for removing mechanical impurities out of them. SUBSTANCE: settling tank includes scraper conveyer and magnetic rods. Scraper conveyer has inner and outer scrapers and casing arranged between branches of conveyer. Casing has grooves in its lower and upper walls adjoining to fixed magnetic rods consisting of permanent magnets. Second scraper conveyer with inner and outer scrapers is arranged between casing and magnetic rods. Scrapers of first and second conveyers are arranged one near another and they embrace magnetic rods over upper and lower walls of casing. The last provides possibility for supplying or discharging cutting fluid through it. EFFECT: enhanced efficiency of cleaning cutting fluid. 2 dwg

Description

 The invention relates to mechanical engineering and can be used at enterprises using cutting fluids (coolant), as well as other process fluids to be cleaned from mechanical impurities.

 The claimed invention is aimed at solving the problem of increasing the efficiency of cleaning the coolant in the tanks-sumps with scraper conveyors.

 Known gravity block tanks equipped with vertical partitions forming a labyrinth of communicating chambers (see, for example, L.V. Khudobin, E.G. Berdichevsky, Technique for the use of lubricants and cooling agents in metalworking. M.: Mechanical Engineering, P. 75 Fig. 44 (a - c)).

 However, in these sump tanks there is no mechanical removal of sludge and chips.

 Closest to the technical nature of the claimed invention is a prototype tank selected as a prototype, containing a scraper conveyor and magnetic rods (see, for example, patent N 2040974, B 03 C 1/00, dated 05.24.93, "Tank-settler for cleaning the coolant "by Bogdanov VV).

 The disadvantage of the prototype is the low cleaning efficiency of the coolant.

 This drawback is due to the fact that the magnetic rods are used outside the tank capacity of the sump.

 The aim of the invention is to increase the efficiency of cleaning coolant.

 To achieve this goal, the scraper conveyor of the settling tank is made with inner and outer scraper and a casing located between the branches of the scraper conveyor with grooves in the upper and lower walls, to which the stationary magnetic rods, consisting of permanent magnets, are adjacent, and a second one is located between the casing and the magnetic rods a scraper conveyor with internal and external scraper, and the scrapers of the first and second scraper conveyors are adjacent to each other and cover the magnetic rods above erhney and below the bottom wall of the housing, which is adapted to supply or discharge coolant therethrough.

 According to the information available to the author, the set of essential features characterizing the essence of the claimed invention is not known from the prior art, which allows us to conclude that the invention meets the criterion of "Novelty."

 According to the author, the essence of the claimed invention should not be obvious to a specialist from the prior art, because it does not reveal the above effect on the obtained technical result - a new property of the object, a set of features that distinguish the claimed invention from the prototype, which allows us to conclude that it meets the criterion of "inventive level".

 The set of essential features characterizing the essence of the invention, in principle, can be repeatedly used in the field of engineering with obtaining a technical result, which consists in increasing the efficiency of cleaning the coolant, ensuring the achievement of the goal, which allows us to conclude that the invention meets the criterion of "industrial applicability".

The invention is illustrated by graphic materials, which depict:
in FIG. 1 - the first version of the General view of the tank sump for cleaning coolant;
in FIG. 2 - section aa.

 Declared according to the claims, the sump tank for cleaning the coolant contains a sump tank 1 with a scraper conveyor 2, to the chains of which 3 are attached two-sided outer 4 and inner 5 scrapers. Between the lower and upper branches of the scraper conveyor 2 there is a casing 6 with grooves in the upper 7 and lower 8 walls and connected to a pipe for the removal or supply of coolant 9. Magnetic rods 10, consisting of permanent magnets mounted on stationary, are adjacent to the upper and lower walls of the casing axis.

 Between the casing and the magnetic rods is a second scraper conveyor 11 with bilateral outer 12 and inner 13 scrapers.

 The inner scraper 5 of the scraper conveyor 2 and the outer scraper 12 of the conveyor 11 have a contoured surface, mate with each other and cover the surface of the magnetic rods 10 above the upper and under the lower walls of the casing 6.

 Above the upper branch of the scraper conveyor 2 of the sump tank 1, a dividing casing 14 is located.

 The separation casing 14 may form a compartment 17 in the upper part of the settling tank 1.

 The outer scrapers 4 of the scraper conveyor 2 are adjacent to the surface of the flat bottom 15 of the settling tank 1 and the flat separation casing 14.

 Between the branches of the scraper conveyor 2 can be located dividing casing 16.

 The sump tank 1 has a pipe 18 for supplying contaminated or discharging purified coolant.

 The sump tank 1 is equipped with a tank for sludge 19.

 Tank sump 1 operates as follows.

 In the event that contaminated coolant enters the sump tank 1 through the pipe 18, it is cleaned by sedimentation. Part of the impurities settles under the influence of their own weight on the casing 14, the upper wall 7 of the casing 6 and the bottom 15 of the settling tank 1. Then, the partially purified liquid passing in the gaps between the magnetic rods 10 is additionally cleaned of ferromagnetic mechanical impurities that are attracted to the magnetic rods 10 The purified liquid is discharged passing through the grooves of the casing 6 along the pipe 9.

 The scraper conveyors 2, 11 are periodically turned on and removed by the internal shaped scraper 5 of the scraper conveyor 2 and the shaped scraper 12 of the scraper conveyor 11 settled ferromagnetic solids from the surfaces of the magnetic rods 10. At the same time, the scraper 13 of the scraper conveyor 11 clean the upper surface 7 of the casing 6. Removed from the surface 7 casing 6 and from the surfaces of the magnetic rods 10, mechanical impurities settle on the bottom 15 of the settling tank 1, from where they are removed by moving external scrapers 4 of the conveyor 2 into a sludge tank 19.

 Coolant cleaning can also be carried out with moving scraper conveyors 2 and 11. However, the cleaning efficiency of the coolant is reduced. Therefore, the operating mode for moving scraper conveyors 2 and 11, it is advisable to apply only at high concentrations of sludge in the coolant.

 The separation casing 16 helps to reduce mixing of the cleaned coolant in the sump tank 1.

 If contaminated coolant enters the sump tank 1 through the pipe 9 and the grooves of the casing 6, it is cleaned of ferromagnetic solids, passing through the gaps between the magnetic rods. Ferromagnetic impurities are attracted to the magnetic rods 10. Next, the liquid is purified by sedimentation. Part of the impurities settles under the influence of their own weight on the bottom 15 and the upper wall 7 of the casing 6. Then, the partially purified liquid is guided through the channel between the shaped separation casing 16 and the separation casing 14 into the compartment 17 of the settling tank 1, where it is additionally cleaned by sedimentation. The purified liquid is discharged through the pipe 18.

 Scraper conveyors 2, 11 are removed by internal shaped scrapers 5 of the scraper conveyor 2 and shaped scrapers 12 of the scraper conveyor 11, settled ferromagnetic solids from the surfaces of the magnetic rods 10 and the shaped separation casing 16. At the same time, the scrapers 13 of the scraper conveyor 11 clean the upper surface 7 of the casing 6. Removed from surface 7 of the casing 6 and from the surfaces of the magnetic rods 10, mechanical impurities settle on the bottom 15 of the settling tank 1, from where 4 tr are removed by moving external scrapers nsportera 2 into the container 19 for the sludge.

 According to the experiments, the claimed invention can be used in the national economy and in comparison with the prototype has the following advantages: higher efficiency and speed of cleaning the coolant in the tanks-sumps.

 The claimed solution does not adversely affect the state of the environment.

 The present invention will improve the cleaning efficiency of the coolant.

Claims (1)

 Sump tank containing a scraper conveyor and magnetic rods, characterized in that the scraper conveyor of the sump tank is made with internal and external scrapers and a casing located between the branches of the scraper conveyor with grooves in the upper and lower walls, to which are attached fixed magnetic rods consisting of permanent magnets, and between the casing and the magnetic rods there is a second scraper conveyor with internal and external scrapers, and the scrapers of the first and second scraper conveyors adjoin each other and cover the magnetic rods above the upper and under the lower walls of the casing, which is configured to supply or drain through it the cutting fluid of the casing.

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