CN212476509U

CN212476509U - Electroosmosis sludge drying filter-pressing sealing device

Info

Publication number: CN212476509U
Application number: CN202021573372.0U
Authority: CN
Inventors: 万德胜; 焦映厚; 谢品有; 曲秀全
Original assignee: Research Institute Of Mechanical And Electrical Engineering (jiashan) Of Harbin University Of Technology
Current assignee: Research Institute Of Mechanical And Electrical Engineering (jiashan) Of Harbin University Of Technology
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-02-05
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to an electroosmosis sludge drying, filter pressing and sealing device, which relates to the technical field of municipal sludge treatment and comprises a pressure action part, a detection part and a filter chamber part, wherein a power cylinder with pressure action is fixed on a fixed flange, and an output rod of the power cylinder is connected with a switching piece; the spoke type pressure sensor of the detection part is connected with the adapter and the pressure plate, the pull rod displacement sensor is connected with the mounting flange, and the contact of the pull rod displacement sensor is fixed on the pressure plate; the bottom of the pressure plate of the filter chamber part is provided with a plate electrode, the insulating inner frame and the pressure plate are fixed through an outer steel cover, the outer steel cover is provided with two pressure cylinders, a connecting plate is arranged between the two pressure cylinders, and output rods of the two pressure cylinders are fixed with the top of the outer steel cover. Adopt the utility model discloses an when electroosmosis sludge drying filter-pressing sealing device dewaters municipal sludge, the filter chamber can carry out effectual sealing to mud, and the working electric field can evenly act on the mud surface, can carry out real-time supervision to the action pressure on current mud cake surface and the displacement of filter chamber simultaneously to later stage is adjusted.

Description

Electroosmosis sludge drying filter-pressing sealing device

Technical Field

The utility model relates to a municipal administration sludge treatment technical field, concretely relates to electroosmosis sludge drying filter-pressing sealing device.

Background

With the gradual improvement of the social requirement on environmental protection, municipal sludge is regarded as one of dangerous solid wastes, and the treatment of the municipal sludge is more and more emphasized. At present, the number of sewage treatment plants in big and small towns in China is more than 7000. The total amount of sewage treated by the sewage treatment plants per day is approximately 2 billion cubic meters, and the total weight of the sewage can reach 500 billion tons. Municipal sludge is one of the products of sewage treatment, and thus a large amount of municipal sludge is required to be treated every day. These municipal sludge compositions are extremely complex, containing large amounts of moisture, various bacteria, organic pollutants and various heavy metal salts. If the sludge with biological activity can not be treated in time, the ecological environment and the life quality of residents are seriously influenced. Therefore, the treatment of municipal sludge has become an important link in sewage treatment.

The reduction treatment is the first step of a sludge treatment process, and at present, municipal sludge can be subjected to reduction treatment in various ways, including an extraction method, a centrifugal method, a pyrolysis method, a filter pressing method, an electroosmosis method and the like. Compared with other methods, the electroosmosis method has the advantages of high treatment speed and good treatment effect, and is gradually paid attention to the industry. The electroosmosis method also has strong combination property, can be used together with methods such as a mechanical filter pressing method and ultrasonic treatment, and further enhances the dehydration efficiency. The combination of electroosmosis and mechanical filter pressing is a relatively wide application mode. When the sludge is treated, the sludge is dehydrated in the filter chamber, and the filter chamber has a sealing function on the sludge. Meanwhile, the filter pressing device also comprises an electrode joint, a detection interface and an interface for constructing and automatically operating a relevant electric field.

At present, the problems of poor tightness, imperfect detection interface and uneven electroosmosis effect exist in part of related equipment with electroosmosis-filter pressing cooperation, the use of the equipment and the final reduction effect of sludge are seriously influenced, and the improvement is urgently needed.

Disclosure of Invention

The utility model aims at providing an electroosmosis sludge drying filter-pressing sealing device to the not good, detection interface setting imperfection, the inhomogeneous problem of electroosmosis of the filter chamber leakproofness that exists among the current sludge decrement treatment technology.

The utility model discloses can carry out good sealed and comparatively even electroosmosis operation to pending mud, set up simultaneously and detect the interface and come the convenience and carry out accurate control to operation process.

In order to achieve the purpose, the utility model adopts the technical proposal that:

an electro-osmosis sludge drying, filter-pressing and sealing device comprises a pressure action part, a detection part and a filter chamber part, wherein the pressure action part comprises a power cylinder, a mounting flange and an adapter, the cylinder body of the power cylinder is fixedly mounted on the mounting flange, and an output rod of the power cylinder is in threaded connection with the adapter; the detection part comprises a pressure plate, a spoke type pressure sensor and a pull rod displacement sensor, the top of the spoke type pressure sensor is connected with the adapter, the bottom of the spoke type pressure sensor is connected with the pressure plate, the main body of the pull rod displacement sensor is fixed on the mounting flange, and a detection contact of the pull rod displacement sensor extends out of the main body and is fixed on the top surface of the pressure plate; the filter chamber part comprises a plate electrode, an electrode joint, an insulating inner frame, an outer steel cover and pressure cylinders, the bottom of a pressing plate is provided with the plate electrode, the plate electrode is provided with the electrode joint, the electrode joint extends out of the pressing plate, the insulating inner frame is arranged at the outer edges of the pressing plate and the plate electrode, the insulating inner frame is of an annular structure, the insulating inner frame and the pressing plate are fixed through the outer steel cover, the outer steel cover is provided with two pressure cylinders, the two pressure cylinders are arranged oppositely, a connecting plate is arranged between the two pressure cylinders, a connector penetrates through the connecting plate, the cylinder bodies of the two pressure cylinders are fixed with the connecting plate, and the output rods of the two pressure cylinders are fixed.

As a further improvement of the utility model, the electrode joint is provided with a pressing block.

As a further improvement, the pressing plate and the insulating inner frame are provided with a sealing groove, and a sealing ring is arranged in the sealing groove.

As a further improvement of the utility model, the outer steel cover be the annular structure of L shape for longitudinal section, the internal diameter of outer steel cover lateral wall equals the internal diameter of clamp plate and the width sum of insulating inside casing.

As a further improvement, the outer steel cover on be equipped with the bolt, the bolt passes the clamp plate, stretches into insulating inside casing, fixes outer steel cover, clamp plate and insulating inside casing mutually.

As a further improvement, the pull rod displacement sensor is fixed with the mounting flange through a right-angle bracket.

The utility model discloses for prior art's advantage lie in: adopt the utility model discloses an when electroosmosis sludge drying filter-pressing sealing device dewaters municipal sludge, the filter chamber can carry out effectual sealing to mud, and the working electric field can evenly act on the mud surface, can carry out real-time supervision to the action pressure on current mud cake surface and the displacement of filter chamber simultaneously to later stage is adjusted.

Description of the drawings:

FIG. 1 is an isometric view of the electro-osmotic sludge drying, filter-pressing and sealing device of the present invention;

FIG. 2 is a partial cross-sectional view of an electrode plate of the electro-osmotic sludge drying, filter-pressing and sealing device of the present invention;

fig. 3 is the structural schematic diagram of the pressure cylinder section of the electroosmosis sludge drying, filter pressing and sealing device of the utility model.

In the figure: the device comprises a power cylinder (1), a pull rod displacement sensor (2), an electrode joint (3), a right-angle support (4), a mounting flange (5), an adapter (6), a pressure cylinder (7), a connecting plate (8), an outer steel cover (9), an insulating inner frame (10), bolts (3) (11), a gasket (12), a threaded sleeve (13), a sealing ring (14), an electrode plate (15), a pressure plate (16), a pressing block (17) and a spoke type pressure sensor (18).

The specific implementation mode is as follows:

as shown in fig. 1, the electro-osmosis sludge drying, filter-pressing and sealing device comprises a pressure action part, a detection part and a filter chamber part, wherein the pressure action part comprises a power cylinder 1, a mounting flange 5 and an adapter 6, the cylinder body of the power cylinder 1 is fixedly mounted on the mounting flange 5, and an output rod of the power cylinder 1 is in threaded connection with the adapter 6; the detection part comprises a pressure plate 16, a spoke type pressure sensor 18 and a pull rod displacement sensor 2, the top of the spoke type pressure sensor 18 is connected with the adapter 6, the bottom of the spoke type pressure sensor is in threaded connection with a boss on the pressure plate 16, the spoke type pressure sensor 18 transmits the action pressure of the power cylinder 1 through threaded contact of the spoke type pressure sensor 18, and the action pressure is collected; the main body of the pull rod displacement sensor 2 is fixed on an installation flange 5, and the pull rod displacement sensor 2 is fixed with the installation flange 5 through a right-angle bracket 4; a detection contact of the pull rod displacement sensor 2 extends out of the main body, is fixed on the top surface of the pressing plate 16 and moves along with the pressing plate 16 in the vertical direction, so that the current position of the filter chamber can be acquired and fed back in real time; the filter chamber part comprises an electrode plate 15, an electrode joint 3, an insulating inner frame 10, an outer steel cover 9 and a pressure cylinder 7 (as shown in figure 2), the electrode plate 15 is arranged at the bottom of a pressing plate 16, the electrode joint 3 is arranged on the electrode plate 15, and a pressing block 17 is arranged on the electrode joint 3 and used for fixing a wiring terminal; the electrode joint extends out of a pressure plate 16, an insulating inner frame 10 is arranged at the outer edges of the pressure plate 16 and the electrode plate 15, the insulating inner frame 10 is of an annular structure, a sealing groove is formed in the pressure plate 16 and the insulating inner frame 10, a sealing ring 14 is arranged in the sealing groove, the insulating inner frame 10 and the pressure plate 16 are fixed through an outer steel cover 9, the outer steel cover 9 is of an annular structure with an L-shaped longitudinal section, and the inner diameter of the side wall of the outer steel cover 9 is equal to the sum of the inner diameter of the pressure plate 16 and the width of the insulating inner; bolts are arranged on the outer steel cover 9, penetrate through the pressing plate 16 and extend into the insulating inner frame 10, and fix the outer steel cover 9, the pressing plate 16 and the insulating inner frame 10; two pressure cylinders 7 (as shown in fig. 3) are arranged on the outer steel cover 9, the two pressure cylinders 7 are arranged oppositely, a connecting plate 8 is arranged between the two pressure cylinders 7, the adaptor 6 penetrates through the connecting plate 8, the cylinder bodies of the two pressure cylinders 7 are fixed with the connecting plate 8, and the output rods of the two pressure cylinders 7 are fixed with the top of the outer steel cover 9; the edge sealing force of the filter chamber is provided by the pressure cylinder 7, the acting pressure is directly transmitted to the insulating inner frame 10, so that downward sealing force is formed on two sides of the filter chamber, and the sealing force can be adjusted freely according to the acting pressure.

When the sludge treatment device is used, sludge is directly placed under the pressure plate 16 by upstream equipment, the power cylinder 1 is started, and the output rod drives the pressure plate 16 to press downwards. Meanwhile, the pressure cylinder 7 performs pressure action on the outer steel cover to provide sealing force for the filter chamber. In the pressing process, the outer steel cover firstly contacts the press filtration plane, and the press plate and the anode plate are continuously acted by the power cylinder 1, so that the press plate assembly and the outer steel cover generate relative displacement. The volume of the filter chamber is gradually reduced, and the sludge is subjected to filter pressing. The pull rod displacement sensor 2 detects the height of the filter chamber in real time, the spoke type pressure sensor 18 detects the acting pressure of the filter chamber at each moment, and the two sensors feed data back to the system for control.

Claims

1. An electro-osmosis sludge drying, filter-pressing and sealing device is composed of a pressure action part, a detection part and a filter chamber part, and is characterized in that the pressure action part comprises a power cylinder (1), a mounting flange (5) and an adapter (6), the cylinder body of the power cylinder (1) is fixedly mounted on the mounting flange (5), and an output rod of the power cylinder (1) is in threaded connection with the adapter (6); the detection part comprises a pressure plate (16), a spoke type pressure sensor (18) and a pull rod displacement sensor (2), the top of the spoke type pressure sensor (18) is connected with the adapter piece (6), the bottom of the spoke type pressure sensor is connected with the pressure plate (16), the main body of the pull rod displacement sensor (2) is fixed on the mounting flange (5), and a detection contact of the pull rod displacement sensor (2) extends out of the main body and is fixed on the top surface of the pressure plate (16); the filter chamber part comprises a plate electrode (15), an electrode joint (3), an insulating inner frame (10), an outer steel cover (9) and a pressure cylinder (7), the plate electrode (15) is arranged at the bottom of the pressure plate (16), the electrode joint (3) is arranged on the plate electrode (15), the electrode joint extends out of the pressure plate (16), be equipped with insulating inside casing (10) in the outer fringe of clamp plate (16) and plate electrode (15), insulating inside casing (10) are the loop configuration, insulating inside casing (10) and clamp plate (16) are fixed mutually through outer steel casing (9), be equipped with two pressure cylinder (7) on outer steel casing (9), two pressure cylinder (7) are relative and put, be equipped with connecting plate (8) between two pressure cylinder (7), adaptor (6) pass connecting plate (8), the cylinder body of two pressure cylinder (7) all is fixed mutually with connecting plate (8), the output pole of two pressure cylinder (7) all is fixed mutually with the top of outer steel casing (9).

2. The electro-osmosis sludge drying, filter-pressing and sealing device according to claim 1, wherein the electrode joint (3) is provided with a pressing block (17).

3. The electro-osmosis sludge drying, filter-pressing and sealing device according to claim 1, wherein the pressure plate (16) and the insulating inner frame (10) are provided with sealing grooves, and sealing rings (14) are arranged in the sealing grooves.

4. The electro-osmosis sludge drying, filter-pressing and sealing device according to claim 1, wherein the outer steel cover (9) is of an annular structure with an L-shaped longitudinal section, and the inner diameter of the side wall of the outer steel cover (9) is equal to the sum of the inner diameter of the pressing plate (16) and the width of the insulating inner frame (10).

5. The electro-osmosis sludge drying, filter-pressing and sealing device according to claim 1, wherein bolts are arranged on the outer steel cover (9), penetrate through the pressing plate (16), extend into the insulating inner frame (10), and fix the outer steel cover (9), the pressing plate (16) and the insulating inner frame (10).

6. The electro-osmotic sludge drying, filter-pressing and sealing device according to claim 1, wherein the pull rod displacement sensor (2) is fixed with the mounting flange (5) through a right-angle bracket (4).