SU1689249A1 - Arrangement for hydraulic transportation of slurry - Google Patents

Abstract

The invention relates to a plant for the hydraulic transport of slurry, for example, dehydrated sewage sludge. The purpose of the invention is to increase the reliability of the installation. The co / 29 installation holds the vertical chambers 1 and 2. within which are placed the separators 3 from the liquid, which divide the chambers 1 and 2 into two cavities. The piping 4 and 5 contains filtering elements 6 and 7. The supply system to the flexible materials in chambers 1 and 2 contains a low-temperature pump 8, the suction inlet of which is connected to the source 10 of the slurry, and the discharge nozzle 11 is connected to the lower parts through the loaded valves 12 and 13. chambers 1 and 2. The supply system for the working fluid contains a high-pressure pump 17, the suction nozzle of which is connected to the sources 19 and 20 of the working fluid through the 24 and 25 pumps, and the discharge nozzle 3 through the valves 24 and 25 is connected to the upper They are parts of chambers 1 and 2. 1 ill. (Ls

Description

The invention relates to a plant for hydraulically transporting hydraulic mixtures, for example, dehydrated sewage sludge.

The purpose of the invention is to increase the reliability of the installation.

The drawing shows a diagram of an installation for hydraulic transportation of hydraulic mixtures,

The installation contains vertical chambers 1 and 2 (there may be more chambers), inside of which liquid separators 3 are placed (for example, heavy oil or various lubricating fluids obtained from oil products, used for technical needs, etc.), which divide the chambers 1 and 2 into two cavities: the upper one filled with a working fluid during operation, and the lower one filled with a hydraulic mixture during operation.

On pipelines 4 and 5, filter elements 6 and 7, n .-. Rimer, in the form of a grid, are cleared, cleaning the working fluid from large inclusions. The system for supplying slurry to chambers 1 and 2 contains a low-pressure pump 8, a suction pipe 9 is connected to a source of slurry 10, and a discharge pipe 11 is connected through the loading valves 12 and 13 of the slurry to the lower part of each chamber 1 and 2. In addition, the lower part of each chamber 1 and 2 is connected through the discharge valves 14 and 15 of the hydraulic mixture with the line 16.

The fluid supply system contains a high-pressure pump 17, the suction pipe 18 of which is connected to the working fluid sources 19 and 20 through the valves 21 and 22, and the pressure pipe 23 through the valves 24 and 25, and also through the filter elements 6 and 7 are connected to the upper part of each chambers 1 and 2. The upper part of each chamber is connected through filtering elements 6 and 7 and gate valves 26 and 27, as well as through drain pipelines 28 and 29 with corresponding sources 19 and 20. Control systems and devices for signals on and off valves 21,22 24 - 27 not are shown.

Installation works as follows.

First, the chambers 1 and 2 are filled with a working fluid for lubricating the inner surfaces of the chamber, for example, an aqueous solution of polycarlamide, in order to weaken the contact of the visco-plastic material with the inner surfaces of the chamber. After that, a liquid separator 3 is introduced into the chambers 1 and 2 from below. Then the chambers 1 and 2 are alternately filled from below with a viscoplastic material supplied through valves 13 and 12 using a pump 8, while the valve 24 is closed and the valve 26 is open and through it the working fluid from the upper cavity of the chamber 1 enters the source 20. During the displacement process working fluid from the upper cavity of the chamber using the filter element 6 is the cleaning fluid from particles of large inclusions that have fallen into the upper cavity of the tank.

After the working fluid reaches the upper level in the source 20, a TLD sensor is triggered, which gives a signal to close the gate valve 26 and open the gate valves 21 and 24. After switching the gate valves 21,24 and 26, the working fluid pumped by pump 17 enters through the valve 24 into the upper chamber cavity 1 and, acting on the separator 3, displaces the viscoplastic material from the chamber 1 through the valve 15 to the line 16. In this case, the filter element 6 is flushed with a reverse current of the working fluid. Upon reaching the liquid level in the reservoir 19 of the lower limit position, the valve 24 and 26 are switched to the initial position and the cycle in the chamber 1 is repeated. The volume of working fluid in the tank between the upper and lower levels should be equal to the working volume of the chamber. .

Work in another chamber 2 occurs in a similar way with closed valves 21, 24 and 26. When loading the chamber 2, the valves 22 and 25 are closed, the valve 27 is open, when transporting material, the valve 27 is closed, and the valves 22 and 25 are open.

Claims (1)

Claim Installation for hydraulic transportation of hydraulic mixtures containing vertically located chambers, low-pressure and high-pressure pumps, the suction nozzles of which are connected respectively to the source of the hydraulic mixture and the reservoir of the working fluid, and the pressure nozzles are connected to the cavities of the chambers through relief valves located in the lower parts of the chambers and through valves located in the upper parts of the chambers, a main pipeline connected to the chambers through relief valves, a drain pipe connected to and the source of the working fluid and through valves with chambers, the outlet and inlet pipelines for the working fluid and filter elements, characterized in that, in order to increase reliability, the installation is equipped with an additional reservoir. rum for the working fluid, while the main channels are connecting pipelines through the inlet and outlet pipes of the auxiliary and secondary tanks, and the filtering elements are connected with vertically arranged tannins on these pipelines. Editor A. Motyl Compiled by L. Trofimchuk Tehred M. Morgenthal Corrector. M. Sharoshi Order 3780 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035. Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.