SU733735A1 - Apparatus for dehydrating materials - Google Patents

Description

The invention relates to devices intended for dewatering solid (particulate) materials, substances present in a liquid medium and can byt applied in metallurgy, petrochemical, methyl ⁵ ditsinskoy and other industries.

A device is known for dehydration of bulk material, consisting of a rotor with blades mounted on a vertical shaft, made in the form of a truncated perforated cone, facing down with a large base, a perforated shell, rigidly fastened to the ¹⁵ rotor by means of L-shaped ribs dividing the annular space between a shell and a rotor on isolated compartments, a loading device, a discharge device, consisting of a pear-shaped receiver and a poppet valve, made with the possibility of axle th displacement [1].

It is also known a device for dewatering materials, comprising a housing, a rotor, consisting of two disks connected in parallel to each other by ribs connected to each other and sludge and filtrate collectors [2].

This device is the closest to the invention in technical essence.

However, the known devices cannot be used in technological processes that require accurate determination of the amount and size of solid particles of sediment. So, when preparing a sample for X-ray spectral analysis, great demands are placed on the preservation of microparticles, which must be irradiated to obtain a high-quality spectrum, that is, determining the actual quantitative and qualitative presence of elements in the sample. The disappearance of a certain number of particles, usually

733.735 introduces an error, which greatly affects the regulation of the process.

The purpose of the invention is the reduction of sludge losses with the discharged filtrate.

The goal is achieved by the fact that in the proposed device ₅ , between the ribs are mounted with the possibility of rotation of the frame with filtering material, and on the outside there is a spiral attached to the ribs to discharge the sediment from the housing. ' 10

In FIG. 1 shows the described device, a longitudinal section; in FIG. 2 device rotor; in FIG. 3 is a section AA in FIG. 2; in FIG. 4 - frame with filter material. ^fifteen

The device for dewatering materials comprises a housing 1, a rotor, including a shaft 2 with an opening 3 for supplying the starting material, disks 4 and 5, parallel to each other, mounted on the shaft 2, shaped ribs 6, frames 7 with filter material mounted between ribs on bearings 8 with the possibility of rotation, and the receiving chamber 9.

The rotation mechanism of the frames 7 includes elongated rollers 10, mounted on the last gears 11, engaged with the crown 12, mounted on the rotor shaft, pin 13, strap 14, sleeve 15 ³⁰ with thread, multi-thread screw 16, spring 17, piston 18, pneumatic cylinder 19.

To remove sludge from the casing, use a spiral 20 attached to the ribs 6 externally, and to collect sludge and filter, use ³⁵ ta-receivers 21 and 22. The sludge receiver 21 is fixed under the discharge opening 23 in the casing stationary, as well. the filtrate receiver 22 is periodically ₄ θ supplied under the discharge opening.

The device operates as follows.

Through the hole 3 of the shaft 2, the material (pulp) to be dehydrated is fed into the receiving chamber 9, from where it enters the rotor cavity, limited by the frames 7. The fluid passes through the filtering material of the frames 7 into the housing 1 and is drained through the hole 23 into the reception — _5Q nickname 22, and solid particles (sediment) remain on the inner surface of the filter material.

After that, air enters the pneumatic cylinder 19, and the piston 18, pivotally connected to the multi-start screw 16, moves along the axis of the shaft 2. The sleeve 15, connected by a thread with the multi-start screw 16, rotates the bar 14 through an angle of 90. The finger 13, rigidly mounted on the strap 14, rotates the crown 12 and gears 11 connected to the crown, as a result of which the frame 7 rotates 180 so that the inner side of the filter material becomes outer, and adherent material is deposited on the inner surface of the housing under the action of centrifugal forces, from where it is discharged by a spiral 20 into the receiver 21. The spring 17 returns the piston 18 to its original position. The next time the pulp enters, the outer surface of the filter material and the spiral will be washed.

The high-quality process of dehydration of materials during X-ray spectral express analysis for process control will increase the quality of products by 15-25% compared with the currently used devices for dehydration of materials.

Claims (1)

The invention relates to devices intended for the dehydration of solid (particles) materials, substances in a liquid medium, and can be used in metallurgical, petrochemical, medical, and other sectors of the national economy. A device for dewatering bulk material is known, consisting of a rotor with blades mounted on a vertical shaft, made in the form of a truncated perforated cone, facing downwards with a large base, a perforated shell, rigidly fastened to the rotor by means of L-shaped ribs dividing the ring the space between the shell and the rotor on the isolated compartments, the loading device, the discharge device consisting of a pear shaped receiver and a disc valve, configured to axially move l}. It is also known a device for dewatering materials, comprising a housing, a rotor, a consistency of two disks mounted in parallel on the shaft, interconnected by fins, and sludge and filtrate collections 2. This device is closest to the invention by its technical nature. However, the known devices cannot be used in technological processes that require precise determination of the number and size of solid particles of sediment. Thus, when preparing a sample for X-ray spectral analysis, great demands are made to preserve the microparticles that need to be irradiated in order to obtain a high-quality spectrum, that is, to determine the actual quantitative and qualitative presence of elements in the sample. The disappearance of a certain number of particles, as a rule. 73 introduces an error, which greatly influences the regulation of the technological process. The purpose of the invention is to reduce sludge losses with a returnable filtrate. The goal is achieved by the fact that in the proposed device between the ribs are installed with the possibility of rotation of the frame with the filtering material, and outside the ribs are attached a spiral for unloading sediment from the body. FIG. 1 shows the described device, a longitudinal section; in fig. 2 rotor device; FIG. 3 is a section A-A in FIG. 2; in fig. 4 - frame with filtered material. The device for dewatering materials comprises a housing 1, a rotor comprising a shaft 2 with an opening 3 for feeding the source material, disks 4 and 5 mounted in parallel on shaft 2, interconnected by figured ribs 6, frames 7 with filter material mounted between the ribs on bearings 8 can be rotated and the receiving chamber 9. The mechanism for rotating the frames 7 includes elongated rollers 10 fixed to the last gear 11, which entered into engagement with a vend 12 fixed to the rotor shaft, a finger 13, a bar 14, a sleeve 15 with a thread, multiple run screw 16, spring 17, piston 18, pneumatic cylinder 19. To remove sediment from the housing, a sniping 20 is attached to the fins 6 from the outside, and for collecting sediment and filter ta receivers 21 and 22. Sediment receiver 21 is fixed under the discharge opening 23 in the case of stationary, and. the filtrate receiver 22 is periodically supplied under the discharge opening. The device works as follows. Through the hole 3 of the shaft 2, the material (pulp) to be dehydrated is fed into the receiving chamber 9, from where it enters the rotor cavity bounded by the frames 7. The liquid passes through the filter material of the frames 7 to the housing 1 and through the hole 23 is drained into the receiver 22 and solid particles (sediment) remain on the inner surface of the filter material. 54 After that, air enters the cylinder 19, and the piston 18, pivotally connected with the multiple screw 16, mixes along the axis of the shaft 2, the sleeve 15, which is threaded with the multiple screw 16, rotates the bar 14 through an angle of 90, Finger 13 rigidly fixed on the plank 14, the crown 12 rotates and the gears 11 connected to the crown, as a result of which the frame 7 is rotated 180 so that the inner side of the filtered material becomes outer, and the adhered material under the action of centrifugal forces is deposited on the inner surface of the body where it is discharged into the receiver coil 20, 21. Spring 17 returns piston 18 to its original position. The next time the pulp enters, the outer surface of the filtering material and the helix will be washed. High-quality process of dewatering materials when carrying out X-ray express analysis to regulate the quality of products by the process by 15-25% compared with the currently used devices for dewatering materials. Claims An apparatus for dewatering materials comprising a housing, a rotor consisting of two disks mounted in parallel on the shaft, interconnected by ribs, sludge collectors and filtrate, characterized in that, in order to reduce sludge losses with the filtrate removed, between the ribs the possibility of turning the frame with filtering material, and a spiral is attached to the ribs outside to unload the sediment from the housing. Sources of information taken into account during the examination 1. USSR author's certificate No. 287587, cl. B 04 B 3/02, 1968 2, USSR Copyright Certificate No. 441969, class, B 04 B 3/02, 1972, ///////////////////////////// but D From