SU1048358A2 - Pulp sample transportation device - Google Patents

Description

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The invention relates to a testing technique, specifically to devices for transporting samples of pulp materials.

According to the main author. No. 968673, a device for transporting pulp samples 5, consisting of a cylindrical body with a conical lower part, connected through a hydraulic lock with a transport pipeline, a central cup with a pipe 10, loading a sample and an elastic valve, a protective device with a solenoid valve, filter and overflow device with elastic valves, -water supply pipe and | 5 waste pipe D

The disadvantage of the device is that during a long stop the gi. After dropping the sample into the device, the dropletransport system is heavy-enough and fast-enough. Sediment is deposited in the lower part of the hydraulic seal, the density of the sediment is close to the maximum possible value for a given solid material. The formation of precipitate with ka from light particles occurs as follows. , rather quickly and in its fi-. The properties of light particles are similar to heavy viscous liquids, the free surface of which always tends to be horizontal. Over time, the solid particles destroy the internal adhesion forces between the solid particles and the liquid, and the density of the sludge increases / reaches a limit value, while the volume of sludge decreases with the release of a certain amount of water, which leads to the formation of a hydraulic trap. 40 hydrotransport system compressed air supply to the device due to the significant density of sediment

it seems possible, which reduces the reliability of the system as a whole.

The aim of the invention is to improve the reliability of the device.

The goal is achieved by the fact that the device for transporting pulp samples 50 is equipped with a cylindrical conical mixer installed between the conical part of the body and the hydraulic lock, a hollow axis, installed a vertical (inside the device, 55 n elastic gate mounted on a hollow axis inside the mixer, while the input the hole of the hollow axis is located in the upper part of the body between the filter and overflow device, and the outlet of the hollow axis is located above the hydraulic lock.

The drawing shows the proposed device, obgtion view. five

The device consists of a cylinder-shaped case 1 with a central cup 2, in the upper part of which there is a connection pipe 3 for sample loading and an elastic non-return valve 4 as well as a safety device 5 with a solenoid valve 6 for compressed air supply. On the cylindrical part of the body there are elastic check valves 7 of the overflow device 8, equipped with a water supply connection j and a overflow discharge pipe 10, between the overflow device 8 and the conical part of the housing 1 a filter 11 is installed. The lower conical part of the housing is equipped with a mixer 12. an elastic shutter 13 and a hollow shaft 14 and is connected to the transport pipeline by means of a hydraulic lock 15.

The operation of the device is as follows.

The body 1 filled to the urn overflow with WATER through the nozzle 3 sample loads and the open elastic check valve 4 of the central cup 2 enters the conical part of the body 1 and the mixer 12, while the elastic valve 13 prevents solid particles from entering the hydraulic block 15. The sample forms a layer thickened slurry, fluidized bed and a layer of clarified water, while. Some of the material with upward flow rushes upward and floats on the surface of the filter1 11, and the water passed through the filter through open elastic check valves 7 enters the overflow device 8 and overflows through the discharge pipe 10 into the drainage. After loading one sample (or accumulating several samples) and long-term shutdown of the hydrotransport system (associated, for example, with the absence of compressed air in the line supplying the device), the compressed air is supplied by the solenoid valve 6, under the influence of which elastic check valves 4 and 7 are closed. due to the connection by means of a hollow vertical shaft 14 of the water seal and the upper part of the body of the device, located between the filter and the overflow device, as well as increased With the known device of the sediment area in the mixer 12, the sample is displaced into the lower part of the mixer under the elastic valve 13 (the valve is deformed at that) and then through the hydraulic lock 15 into the transport pipeline. After the transport cycle is completed, the electromagnetic valve 6 closes, the elastic saiTBop 13 comes into the initial state, blocking the access of the solid into the water seal 15, after which the housing 1 is filled with water and the cycle of loading and transportation is repeated.

The presence of a cylinder-mounted device installed in the lower part of the housing of the device

This device helps to prevent blocking of the water seal and increase the reliability of the device, which reduces maintenance costs.

Claims (1)

(54) (57) DEVICE FOR 'TRANSPORTATION OF SAMPLE SAMPLES by ed. St. No. 968673, characterized in that, in order to increase the reliability of the device, it is equipped with a cylindrical mixer installed between the conical part of the housing and the water seal, a hollow axis mounted vertically inside the device, and an elastic valve mounted on the hollow axis inside the mixer, the inlet of the hollow axis is located in the upper part of the housing between the filter and the overflow device, and the outlet of the hollow axis is located above the water seal.