CN209714403U - A filter press capable of secondary press filtration and dehydration - Google Patents

Abstract

The utility model belongs to the field of PCB processing sludge treatment, and discloses a filter press capable of secondary press filtration and dehydration, comprising a frame, a fixed end plate and a movable end plate arranged on the frame, and a Support column; the movable end plate is movably sleeved on the support column, and a plurality of extruding plates sleeved on the support column are arranged between the fixed end plate and the movable end plate. The moving end plate is connected with a driving mechanism for driving the movement; the extruding plate includes a body, a through hole arranged in the center of the body and matched with the support column, the inside of the body is a hollow cavity, and the two sides of the body A water inlet and a water outlet connected to the hollow cavity are provided on the side; a plurality of first bumps are provided on the surface of the body, and reinforcing columns around the through hole are provided in the hollow cavity. The filter press can be used for secondary water injection and pressure filtration to control the moisture content of the sludge at 60-65%; the dewatering capacity is increased by 30%.

Description

A filter press capable of secondary press filtration and dehydration

technical field

The utility model belongs to the field of PCB processing sludge treatment, in particular to a filter press capable of secondary filter press dehydration.

Background technique

PCB sludge has complex components, high water content and is not easy to dehydrate. It contains harmful heavy metals and pathogenic microorganisms, which seriously threaten the survival, health and development of human beings. Practice has proved that sludge resource utilization is an inevitable way out for sludge treatment. First, sludge treatment must be dehydrated, the purpose is to further reduce the volume of sludge, and facilitate subsequent treatment, disposal and utilization.

The industry generally adopts a plate and frame filter press for the treatment of PCB sludge, which has a long service life and a large filtering driving force. The moisture content of the obtained mud cake is 90%.

The purpose of this technical transformation of our company is to control the moisture content of the mud cake at 60-65%, increase the dehydration capacity by 30%, and reduce the monthly sludge treatment cost by more than 300,000.

Utility model content

The purpose of this utility model is to provide a filter press capable of secondary pressure filtration and dehydration, which can perform secondary water injection and pressure filtration, and control the water content of the sludge at 60-65%; the dehydration capacity is increased by 30% %.

Its direct reflection on economic benefits is: the cost of sludge treatment per ton after dehydration is 4,000 yuan/cubic meter. Using the old scheme, 7 cubic meters of sludge is produced every day. This scheme produces 4.2 cubic meters of sludge, saving monthly sludge The cost of mud treatment is 313,600 yuan.

In order to achieve the above purpose, the utility model provides the following technical solutions: a filter press capable of secondary filter dehydration, including a frame, a fixed end plate and a movable end plate arranged on the frame, a Support column; the movable end plate is movably sleeved on the support column, and a plurality of extruding plates sleeved on the support column are arranged between the fixed end plate and the movable end plate. The moving end plate is connected with a driving mechanism for driving the movement; the extruding plate includes a body, a through hole arranged in the center of the body and matched with the support column, the inside of the body is a hollow cavity, and the two sides of the body The side is provided with a water inlet and a water outlet communicating with the hollow cavity;

The surface of the main body is provided with a plurality of first bumps, and the hollow cavity is provided with reinforcing columns around the through hole.

In the above-mentioned filter press capable of secondary pressure filtration and dehydration, the body includes an upper plate body, a lower plate body, a solid outer frame arranged on the outside of the upper plate body and the lower plate body, and a solid frame arranged on the lower plate body and the upper plate body. The solid inner frame at the center of the body, the through hole is located in the solid inner frame; the first convex point is located on the outer surface of the upper plate and the lower plate.

In the above-mentioned filter press capable of secondary pressure filtration and dehydration, the upper plate and the lower plate are provided with multiple rings of second bumps arranged in an annular array, and the second bumps are located in the solid inner The periphery of the frame; the area of the second bump is larger than the area of the first bump.

In the above-mentioned filter press capable of secondary pressure filtration and dehydration, bosses are provided on the outer surfaces of the upper plate body and the lower plate body corresponding to the reinforcing columns, and the height of the bosses is higher than that of the first The height of a bump.

In the above-mentioned filter press capable of secondary filtration and dehydration, the outer surfaces of the upper plate and the lower plate are provided with third bumps arranged in an annular array in multiple circles on the outer periphery of the boss. The area of the third bump is larger than the area of the first bump.

In the above-mentioned filter press capable of secondary filtration and dehydration, the surface of the solid outer frame is provided with a plurality of liquid guiding grooves.

In the above-mentioned filter press capable of secondary filtration and dehydration, a first reinforcing sheet is provided between the inner surfaces of the upper plate body and the lower plate body and the solid inner frame.

In the above-mentioned filter press capable of secondary pressure filtration and dehydration, a second reinforcement sheet is provided between the inner surfaces of the upper plate body and the lower plate body and the reinforcement column.

Compared with the prior art, the beneficial effects of the utility model are:

This scheme first dewaters through the extrusion of the moving end plate, and then injects water into the extrusion plate to expand the extrusion plate to achieve secondary dehydration, which can control the moisture content of the sludge at 60-65%; the dehydration capacity is increased by 30% %.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present utility model;

Fig. 2 is the front view of the extruded plate of embodiment 1 of the present utility model;

Fig. 3 is an A-A sectional view of the extruded plate of Embodiment 1 of the present utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

As shown in Figure 1-3, a filter press capable of secondary filtration and dehydration includes a frame 1, a fixed end plate 2 and a movable end plate 3 arranged on the frame 1, and a support column arranged on the frame 1 4; the movable end plate 3 is movably sleeved on the support column 4, and a plurality of extrusions sleeved on the support column 4 are provided between the fixed end plate 2 and the movable end plate 3; Plate 5, the moving end plate 3 is connected with a driving mechanism 6 for driving and moving, and the driving mechanism 6 is generally an oil cylinder; the extruding plate 5 includes a body, a through hole arranged in the center of the body and matched with the support column 4 51, the inside of the body is a hollow cavity 52, and the two sides of the body are provided with a water inlet 53 and a water outlet 54 communicating with the hollow cavity 52;

The surface of the main body is provided with a plurality of first bumps 55 , and the hollow cavity 52 is provided with reinforcing columns 56 around the through hole 51 .

In practical application, the sludge is preliminarily dehydrated and placed between the two extruding plates 5, and the sludge is preferably packed in bags before being placed. Then drive the mobile end plate 3 to move towards the fixed end plate 2 through the driving mechanism 6, so that the extrusion plate 5 squeezes the sludge to realize the first dehydration, and then the moving end does not move, and water is injected into the extrusion plate 5 to pressurize the sludge. The main body expands, and the sludge is dehydrated for the second time.

Specifically, this embodiment proposes an extruded plate 5 with a relatively stable structure that can withstand multiple repeated pressures to overcome the problem that the traditional extruded plate 5 is easy to burst and explode. The main body includes the upper plate Body 57, lower plate body 58, solid outer frame 59 arranged on the outside of upper plate body 57 and lower plate body 58, solid inner frame 50 arranged at the central position of lower plate body 58 and upper plate body 57, described through hole 51 It is located in the solid inner frame 50 ; the first convex point 55 is located on the outer surfaces of the upper plate body 57 and the lower plate body 58 . The solid outer frame 59 and the solid inner frame 50 can increase the overall strength of the body, and the reinforcing column 56 can increase the strength of the hollow cavity 52, which leads to a significant improvement in the strength of the entire body and a significant increase in service life.

In this embodiment, the upper plate body 57 and the lower plate body 58 are provided with multiple circles of second bumps 501 arranged in a circular array, and the second bumps 501 are located on the periphery of the solid inner frame 50; The area of the second bump 501 is larger than the area of the first bump 55 . The second bump 501 has a larger area and can withstand greater pressure, and cooperates with the solid inner frame 50 to increase the strength of this position. Preferably, a first reinforcement piece 502 is provided between the inner surfaces of the upper plate body 57 and the lower plate body 58 and the solid inner frame 50; with the second bump 501, the solid inner frame 50 and the upper plate can be significantly improved. The strength between the body 57 and the lower plate body 58.

In this embodiment, bosses 503 are provided on the outer surfaces of the upper plate body 57 and the lower plate body 58 corresponding to the reinforcing columns 56, and the height of the bosses 503 is higher than that of the first convex point 55. The outer surface of the upper plate body 57 and the lower plate body 58 is provided with multiple third bumps 504 arranged in an annular array on the outer periphery of the boss 503, and the area of the third bumps 504 is Greater than the area of the first bump 55; its principle is the same as that of the second bump 501; preferably, a second reinforcement is provided between the inner surfaces of the upper plate body 57 and the lower plate body 58 and the reinforcing column 56 The sheet 505, together with the third bump 504, can significantly improve the strength between the reinforcement column 56 and the upper plate body 57 and the lower plate body 58

Preferably, in order to improve the liquid drainage speed and effect, the surface of the solid outer frame 59 is provided with a plurality of liquid guiding grooves 506 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (8)

1. one kind can secondary filter-press dehydration filter press, including rack, the fixed charge method end plate being arranged on the rack and mobile end plate, set Set support column on the rack；The mobile end plate is arranged on the support columns in a movable manner, the fixed charge method end plate Multiple stripper plates being arranged on the support columns are equipped between mobile end plate, the mobile end plate is connected with for driving movement Driving mechanism；It is characterized by: the stripper plate include ontology, setting entreat in the body it is logical with support column cooperation Hole, the body interior are hollow cavity, and the two sides of the ontology are equipped with the inlet and outlet being connected to hollow cavity；

The surface of the ontology is equipped with multiple first salient points, is equipped with the reinforcing prop being located at around through-hole in the hollow cavity.

2. it is according to claim 1 can secondary filter-press dehydration filter press, it is characterised in that: the ontology includes upper plate Body, lower body, the solid outline border being arranged on the outside of upper plate body and lower body, the reality that lower body and upper plate body central location are set Intracardiac frame, the through-hole are located in the solid inside casing；First salient point is located at the appearance of upper plate body and lower body Face.

3. it is according to claim 2 can secondary filter-press dehydration filter press, which is characterized in that the upper plate body and lower plate Body is equipped with the second salient point of multi-turn circular array arrangement, and second salient point is located at the periphery of solid inside casing；Described The area of second salient point is greater than the area of the first salient point.

4. it is according to claim 2 can secondary filter-press dehydration filter press, which is characterized in that the upper plate body and lower plate The outer surface of body position corresponding with reinforcing prop is equipped with boss, and the height of the boss is higher than the height of the first salient point.

5. it is according to claim 4 can secondary filter-press dehydration filter press, which is characterized in that the upper plate body and lower plate The outer surface of body is equipped with the third salient point of the multi-turn circular array arrangement positioned at boss periphery, the face of the third salient point Product is greater than the area of the first salient point.

6. it is according to claim 2 can secondary filter-press dehydration filter press, which is characterized in that the table of the solid outline border Face is equipped with more intake chutes.

7. it is according to claim 2 can secondary filter-press dehydration filter press, which is characterized in that the upper plate body and lower plate The first reinforced sheet is equipped between the inner surface of body and solid inside casing.

8. it is according to claim 2 can secondary filter-press dehydration filter press, which is characterized in that the upper plate body and lower plate The second reinforced sheet is equipped between the inner surface and reinforcing prop of body.