CN214763543U

CN214763543U - Dewatering roll for filter press

Info

Publication number: CN214763543U
Application number: CN202120880756.5U
Authority: CN
Inventors: 冯爱民
Original assignee: Zhucheng City Tiangong Paper Making Machinery Co ltd
Current assignee: Zhucheng City Tiangong Paper Making Machinery Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-19
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a dewatering roll for filter press, including the inside hollow cylindrical roller body that changes and the fixed axle at roller body both ends, the lateral surface of changeing the roller body is fixed with the clamp plate of arranging around fixed axle center and the cross-section is T shape, the middle vertical part of clamp plate with change roller body lateral surface vertical fixed connection, leave the gap of more than or equal to clamp plate width between the horizontal part of clamp plate, the middle part lateral wall of each end fixed axle is fixed with the gear respectively, the outer end of each end fixed axle is fixed with the bearing respectively, the bearing outside part is fixed in the bearing frame, the both ends of bearing frame are fixed respectively and are stamped the end cover, the cover has rubber seal on the one side fixed axle that the bearing is close to the roller body. The utility model discloses can effectively improve the filter-pressing effect and the efficiency of pressure filter.

Description

Dewatering roll for filter press

Technical Field

The utility model relates to a pressure filter technical field, a dewatering roll for pressure filter specifically says so.

Background

The belt filter press is a water treatment device which is successfully developed by introducing advanced technology from the United states and through digestion and absorption, can continuously filter-press a large amount of sludge, is made of high-strength materials, has the remarkable characteristics of high treatment capacity, high dehydration efficiency, long service life and the like, is widely applied to environmental management of various industries, has long service life of a bearing, simultaneously adopts a high-quality filter belt, ensures the performance and quality of the filter press, and has the functions of filtering and dehydrating by three steps:

1. gravity dewatering zone

After sludge of a wastewater treatment plant is pumped into a sludge stirring tank by a pump and mixed with a Polymer coagulant (Polymer), fine suspended particles in the sludge form particles with larger colloidal feather (Floc) shapes through the bridging action of the Polymer coagulant, and then the particles overflow into an automatic distribution device of a dehydrator from the upper end of the stirring tank in a gravity flow mode, so that the colloidal feather sludge is uniformly distributed on filter cloth of a gravity dehydration area.

The gravity concentration dehydration zone has the function of discharging most of free water of the colloidal feather sludge through meshes of the filter cloth by gravity so as to improve the concentration of slurry, so that the colloidal feather sludge tends to be stable in character and is beneficial to subsequent squeezing dehydration operation.

2. Pressure dewatering zone

After the sludge enters the pressure dehydration area from the gravity dehydration area, the upper and lower filter cloth start to gradually pressurize and extrude the sludge for dehydration.

3. Pressure dewatering zone

The sludge enters a pressure dehydration area along with the movement of the filter cloth, the sludge is arranged among 6 vertical rollers, the diameter of the rollers is gradually reduced from large, the pressure is gradually increased from small, the shearing force is generated on the sludge along with the change of the upper and lower positions of the filter cloth among different rollers along with the upper and lower filter cloth, and capillary bound water (Capillary. Water) in the colloidal feather sludge is squeezed out to generate a drier sludge cake. Present dewatering roller structure is the drum that the lateral wall was covered with the trompil, water gets into the drum from the trompil during the filter-pressing, the opening of rethread drum lateral wall one side is discharged, there is following defect, firstly, the dehydration effect is poor, the area of trompil is less, the water of filter-pressing should not enter into the drum through the hole in, secondly one side dehydration, the dehydration is inefficient, owing to the lateral wall trompil drainage through the drum, water that has partly to flow into in the drum continues to stay in the drum along with the drum rotates at the in-process that has not yet discharged, therefore the drainage is not thorough.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a dewatering roll for a filter press.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a dewatering roll for filter press, including the inside hollow cylindrical roller body that changes and the fixed axle at roller body both ends, the lateral surface of roller body is fixed with around the fixed axle center arrange and the cross-section is the clamp plate of T shape, the middle vertical part of clamp plate and the perpendicular fixed connection of roller body lateral surface, leave the gap of more than or equal to clamp plate width between the horizontal part of clamp plate, the middle part lateral wall of each end fixed axle is fixed with the gear respectively, the outer end of each end fixed axle is fixed with the bearing respectively, the bearing outside part is fixed in the bearing frame, the both ends of bearing frame are fixed respectively to be stamped the end cover, the cover has rubber seal on the one side fixed axle that the bearing is close to the roller body.

Furthermore, a sealing end cover on the outer side of the bearing seat is provided with a hydraulic oil filling port communicated with the outside.

Furthermore, the rubber sealing ring is double-layer, and the cross section of each layer is C-shaped.

Further, the bearing is a double-roller bearing.

Furthermore, the roller body and each pressing plate are formed by welding stainless steel plates.

The utility model discloses during the pressure filter dehydration, horizontal part and the filter belt contact through the clamp plate can guarantee on the one hand that it is enough big with filter belt area of contact, ensure the extrusion effect, and the gap between the clamp plate of on the other hand is great, forms a complete water inlet that runs through both ends, can stay the water that the filter-pressing produced between the clamp plate rapidly, discharge from the opening at both ends between the clamp plate again, and not only the crowded water effect of filter-pressing is better, and the drainage is faster after crowded water in addition, can effectively improve the filter-pressing effect and the efficiency of pressure filter.

Drawings

The present invention will now be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a reference diagram of the usage status of the present invention.

Detailed Description

As shown in figures 1-3, a dewatering roll for a filter press comprises a cylindrical rotating roll body 1 with a hollow interior and fixed shafts 2 at two ends of the rotating roll body, pressing plates 3 which are arranged around the center of the axis of the fixed shaft 2 and have T-shaped sections are fixed on the outer side surface of the rotating roll body 1, the middle vertical part of each pressing plate 3 is vertically and fixedly connected with the outer side surface of the rotating roll body 1, the rotating roll body 1 and each pressing plate 3 are formed by welding stainless steel plates, a gap 4 which is more than or equal to the width of each pressing plate 3 is reserved between the horizontal parts of the pressing plates 3, the outer side wall of the middle part of each end fixed shaft 2 is respectively fixed with a gear 5, the outer end of each end fixed shaft 2 is respectively fixed with a bearing 6, the bearing 6 is a double-roller bearing, the outer part of the bearing 6 is fixed in a bearing seat 7, two ends of the bearing seat 7 are respectively fixedly covered with a sealing end cover 8, a rubber sealing ring 9 is sleeved on the fixed shaft 2 at one side of the bearing 6 close to the rotating roll body 1, a sealing end cover 8 on the outer side of the bearing seat 7 is provided with a hydraulic oil filling port 10 communicated with the outside, the rubber sealing ring 9 is double-layer, and the section of each layer is C-shaped.

When the pressure filter dewaters, horizontal part and the filter belt contact through clamp plate 3, can guarantee on the one hand that it is enough big with filter belt area of contact, ensure the extrusion effect, gap 4 between the clamp plate 3 of on the other hand is great, form a complete water inlet that runs through both ends, can stay the water that the filter pressing produced between clamp plate 3 rapidly, discharge from the opening at both ends between the clamp plate 3 again, not only the crowded water effect of filter pressing is better, the drainage is faster after crowded water moreover, can effectively improve the filter pressing effect and the efficiency of pressure filter.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims

1. The utility model provides a dewatering roll for filter press which characterized in that: the roller comprises a cylindrical roller body (1) and fixing shafts (2) which are hollow inside and are arranged at two ends of the roller body, pressing plates (3) which are arranged around the center of the axis of the fixing shafts (2) and have T-shaped sections are fixed on the outer side faces of the roller body (1), the middle vertical portions of the pressing plates (3) are vertically and fixedly connected with the outer side faces of the roller body (1), gaps (4) which are larger than or equal to the width of the pressing plates (3) are reserved between the horizontal portions of the pressing plates (3), gears (5) are fixed on the outer side walls of the middle portions of the end fixing shafts (2) respectively, bearings (6) are fixed on the outer ends of the end fixing shafts (2) respectively, the outer side portions of the bearings (6) are fixed in bearing seats (7), sealing end covers (8) are fixed at two ends of the bearing seats (7) respectively, and rubber sealing rings (9) are sleeved on the fixing shafts (2) on one side, close to the roller body (1), of the bearings (6).

2. The dewatering roll for a press filter according to claim 1, wherein: a sealing end cover (8) at the outer side of the bearing seat (7) is provided with a hydraulic oil filling port (10) communicated with the outside.

3. The dewatering roll for a press filter according to claim 1, wherein: the rubber sealing ring (9) is double-layer, and the section of each layer is C-shaped.

4. The dewatering roll for a press filter according to claim 1, wherein: the bearing (6) is a double-roller bearing.

5. The dewatering roll for a press filter according to claim 1, wherein: the roller body (1) and each pressing plate (3) are formed by welding stainless steel plates.