RU194404U1 - Belt filter press for continuous dewatering - Google Patents

Abstract

The utility model relates to devices for the continuous dehydration of various materials, for example peat, requiring the extraction of excess moisture from them, and can be used in various industries. The continuous belt filter press consists of a frame with a loading hopper, filter belts of the upper and lower, drive and tension shafts, hydraulic cylinders, pressure and support rollers. The pressure and support rollers consist of shafts on which the disks are fixed, while the disks of one shaft enter the gap between the disks of the adjacent shaft, and the ends of the shafts of two adjacent pressure rollers are installed in the holes of the plates fixed on the rods of the hydraulic cylinders. The thickness of the discs on the roller shafts is the same.

Description

The utility model relates to devices for the continuous dehydration of various materials, for example, peat, requiring the extraction of excess moisture from them and can be used in various industries.

A known press for continuous dewatering of material, mainly peat (SU No. 578198, class B30B9 / 24, publ. 10/30/1977, bull. No. 40), containing two drive moisture-permeable tapes upper and lower, as well as pressure and support shafts, a drive and device for cleaning tapes.

The disadvantage of the filter press is the decrease in the extraction pressure between the shafts, which reduces the amount of squeezed water. This extends the spin time and, as a result, reduces the performance of the filter press.

Known belt filter press for continuous dehydration of the material (RU No. 187400, class B01D 33/04, publ. 03/04/2019, bull. No. 7), consisting of a frame, two waterproof sheets of the upper and lower, drive and tension shafts, hydraulic cylinders , push and support rollers.

The disadvantage of the filter press is the drop in spin pressure between the rollers, which reduces the amount of squeezed water. This extends the spin time and, as a result, reduces the performance of the filter press.

Known continuous belt filter press (RU No. 187828, class B01D 33/04, publ. 03/19/2019, bull. No. 8), consisting of a frame, two waterproof sheets of the upper and lower, drive and tension shafts, hydraulic cylinders, pressure and support rollers.

The disadvantage of the filter press is the drop in spin pressure between the rollers, which reduces the amount of pressed water. This extends the spin time and, as a result, reduces the performance of the filter press.

Closest to the proposed utility model is a continuous-belt PLR filter press (Peat Handbook. M., Nedra, 1982, 760 pp.), Which consists of a frame with a loading device installed on it, filter belts, rollers, hydraulic cylinders and a drive .

The disadvantage of the filter press is the drop in spin pressure between the rollers, which reduces the amount of squeezed water. This extends the spin time and, as a result, reduces the performance of the filter press.

The problem of the utility model is the development of a continuous filter belt press with the ability to reduce the drop in the extraction pressure between the pressure rollers on the filter belts.

The technical result of the utility model is to increase the performance of the filter press.

The posed problem and technical result are achieved in that the continuous filter belt press comprises a frame with a loading hopper, drive and tension shafts mounted on the frame, upper and lower filter belts located on the shafts, pressure and support rollers, hydraulic cylinders mounted on the belts. According to a utility model, the pressure and support rollers consist of shafts on which the disks are fixed, while the disks of one shaft enter the gap between the disks of the adjacent shaft, and the ends of the shafts of two adjacent pressure rollers are installed in the holes of the plates fixed on the rods of the hydraulic cylinders. The thickness of the disks on the roller shafts is the same.

The implementation of the pressure and support rollers, consisting of shafts with disks, while the disks of one shaft are included in the gap between the disks of the adjacent shaft, allows you to double the number of pressure rollers, which reduces the pressure drop ΔР = (P _max - P _min ) between the pressure rollers on the filter tape. This reduces spin time, which increases the performance of the filter press.

The installation of the ends of the shafts of two adjacent pressure rollers in the holes of the plates fixed on the rods of the hydraulic cylinders allows one hydraulic cylinder to exert an extraction pressure on two rollers at once. This halves the number of hydraulic cylinders, which reduces costs and time for their manufacture, installation and maintenance.

A utility model is shown in FIG. 1, which shows a general view of a belt filter press; FIG. 2, which shows a cross section AA of a filter press; FIG. 3, which shows a view B of the arrangement of the rollers in the form of shafts with disks and a pressure change curve between the rollers; FIG. 4, which shows a horizontal section of BB rollers in the form of shafts with discs.

The continuous belt filter press consists of a frame 1 with a loading hopper 2. On the frame 1 there are drive shafts upper 3 and lower 4 (drive not shown conventionally), as well as tension shafts 5 and 6, on which filter belts upper 7 and lower are installed 8. Pressure rollers 9 and a support roller 10 are installed on the upper filtering tape. Support rollers are also installed on the lower filtering tape 10. The rollers are made in the form of shafts 11 with disks 12. Hydraulic cylinders 13 with rods 14 are installed on the upper filtering tape 7. set s trusses 15, on which plates 16 are fixed with two horizontal holes 17, which include the ends of the shafts 11. To remove the squeezed water from the upper filter tape 7, a pan 18 is installed, and from the lower filter tape 8 a tray 19 is installed. On the drive shafts 3 and 4 mounted cleaning knives 20. The inner space of the filter press is filled with squeezing material 21.

The filter press is as follows. The squeeze material 21 is loaded into the hopper 2, after which the drive shafts 3 and 4 are turned on. The squeeze material continuously flows between the filter belts 7 and 8. The rods 14 of the hydraulic cylinders 13 exert pressure on the pressure rollers 9, which is transmitted through the filter belts to the squeeze material 21. Filtered water from the upper filter tape 7 flows into the pan 18, and from the lower filter tape 8 flows into the pan 19, from where it is discharged to the sewer.

The pressed material 21 after filtration is cleaned from the surface of the filter belts 7 and 8 with knives 20, after which it is sent for further processing.

The utility model is available for manufacture in engineering plants and may find application for filtering various materials, such as peat.

The utility model is currently at the technical proposal stage.

Claims (2)

1. A continuous belt filter press containing a frame with a loading hopper, drive and tension shafts mounted on the frame, upper and lower filter belts located on the shafts, pressure and support rollers mounted on the belts, hydraulic cylinders, characterized in that the pressure and support rollers consist of shafts on which the disks are fixed, while the disks of one shaft enter the gap between the disks of the adjacent shaft, and the ends of the shafts of two adjacent pressure rollers are installed in the holes of the plates mounted on the hydraulic cylinder rods s. 2. The belt filter press according to claim 1, characterized in that the thickness of the disks on the roller shafts is the same.

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