Concentrated deslagging and filtering device

Abstract

The utility model discloses a concentrating, deslagging and filtering device which comprises a filter body, a filter element is arranged in the filter body, a filter screen is arranged on the outer ring of the filter element, a scraper assembly matched with the filter screen is arranged on the outer side of the filter screen, and the scraper assembly is fixed on connecting plates on the upper side and the lower side of the filter element through bolts. The bottom of the connecting plate is provided with a pattern plate, the bottom of the filter body is provided with a conical deslagging chamber, one side of the filter body is communicated with a liquid inlet, and the bottom of the deslagging chamber is communicated with a concentrated deslagging device through an isolating valve matched flange. The device has the beneficial effects that solid particles in thick slurry are compressed into filter cakes through multiple times of extrusion, the filter cakes are pushed out through a push rod, and extruded liquid is sucked into a liquid inlet from a liquid conveying opening in a liquid outlet under the action of a diaphragm pump, so that the extruded liquid can be recycled, waste is more conveniently collected, sewage discharge is greatly reduced, and the device is more environment-friendly; and popularization and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a concentrated slag discharging and filtering device. Background Art

[0002] In the production of factories, it is often necessary to collect and process the residues after the reaction. Most of the residues contain moisture, making it inconvenient to handle and recycle the residues. Therefore, it is necessary to filter the residues to remove the liquid in the residues and then process the residues.

[0003] One filtering principle is to let them be discharged separately by physically intercepting impurities. Usually, this process will be accompanied by wasting a lot of useful liquid materials, which is the drawback or common problem existing in the current industry. The traditional dry slag discharging machine has high requirements for the solid-liquid ratio of materials, and the humidity of the discharged impurities is usually not satisfactory. Most of the current market uses the screw extrusion method, and the humidity of the discharged impurities is relatively high, which cannot meet the market demand. Content of the Utility Model

[0004] In the embodiment of the present application, a concentrated slag discharging and filtering device is provided. The collected thick slurry is pushed into the slag discharging filter screen assembly through a push rod and a piston. After multiple squeezes, the solid particles in the thick slurry are compressed into filter cakes, which are pushed out through the push rod. The squeezed liquid is sucked into the liquid inlet through the liquid infusion port on the liquid discharge port under the action of a diaphragm pump, so that it can be recycled. The traditional liquid discharging or materials with relatively high humidity are converted into squeezed filter cakes, which is more convenient for the collection of waste materials. The filtrate can be recycled, greatly reducing the sewage discharge, being more environmentally friendly, and suitable for popularization and use.

[0005] The embodiment of the present application provides a concentrated slag discharging and filtering device, including a filter body. A filter element is arranged inside the filter body. A filter screen is arranged outside the filter element. A scraping plate assembly is arranged on the outside of the filter screen and is matched with the filter screen. The scraping plate assembly is fixed on the connecting plates on the upper and lower sides of the filter element through bolts. A perforated plate is arranged at the bottom of the connecting plate. A conical slag discharging chamber is arranged at the bottom of the filter body. A liquid outlet is communicated at the bottom of the filter body. A liquid inlet is communicated on one side of the filter body. A drain port is communicated on the side of the slag discharging chamber. The bottom of the slag discharging chamber is communicated with a concentrated slag discharging device through a cut-off valve and a flange.

[0006] Further, the concentrated slag discharging device includes a tee pipe. One end of the tee pipe is flange-connected to a slag pushing device, and the other end is flange-connected to a slag discharging mechanism assembly. An air inlet valve is arranged on one side of the tee pipe. The air inlet valve is a one-way valve. A slag discharging valve is arranged at the other end of the slag discharging mechanism assembly. A slag discharging filter screen assembly is fixedly installed inside the slag discharging mechanism assembly through bolts. The inner part of the slag discharging filter screen assembly is a fine-pore filter screen, and the outer part is a coarse-pore filter screen. The fine-pore filter screen assembly is sleeved inside the coarse-pore filter screen and locked from the outside through bolts. The bottom of the slag discharging filter screen assembly is connected to a liquid discharging port by welding. An inspection port is arranged at the bottom of the liquid discharging port. An inspection door plate is fixedly installed on the inspection port through bolts and a gasket. A liquid inlet port and a sewage discharging valve are connected to the liquid discharging port. The liquid inlet port is connected to a diaphragm pump through a pipe. The other end of the diaphragm pump is connected to a liquid inlet through a pipe.

[0007] Further, the slag pushing device and the slag discharging mechanism assembly are located on the same straight line. The slag pushing device includes a housing. A push rod is arranged inside the housing. One end of the push rod is fixedly installed with a piston through bolts. The piston is located inside the tee pipe. A stuffing box is arranged between the housing and the push rod. A mechanical seal is arranged at the outer end of the stuffing box. The push rod is driven by a cylinder to operate. The piston is integrally disc-shaped. The piston cooperates with the fine-pore filter screen.

[0008] Further, the scraper assembly is composed of a scraper, a fixing part, and a fixing plate. The scraper is fixedly installed on the fixing plate through the fixing part. The fixing plate and the connecting plate are perpendicular to each other. One end of the scraper is closely attached to the surface of the filter screen. When the connecting plate is driven to rotate by a speed reducer, the connecting plate drives the scraper to move in a circular motion along the filter screen.

[0009] Further, the perforated plate is fixedly installed inside the filter body by welding. Liquid leakage holes are arranged on the perforated plate. The number of the liquid leakage holes is 8 - 12, and they are evenly distributed in a ring on the perforated plate.

[0010] Further, a pressure gauge is connected to the top of the filter body through thread and nut, and an exhaust port is connected through a flange. The filter body is fixedly installed on a bracket through bolts.

[0011] Further, the liquid inlet is located at a position slightly above one side of the filter body. The liquid outlet is located in the middle of the slag discharging chamber and extends from the slag discharging chamber. The liquid inlet and the liquid outlet are connected to the filter body and the slag discharging chamber by any one of flange connection, threaded connection, and welding.

[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0013] Particles on the surface of the filter screen are removed by a squeegee. The large particles return to the stock solution, which can effectively prevent the filter screen from being blocked and affecting filtration. The thick slurry intercepted outside passes through the flower plate below and flows into the slag discharge chamber. The thick slurry is introduced into the concentration and slag discharge device through a cut-off valve. The collected thick slurry is pushed into the slag discharge filter screen assembly by a push rod and a piston. After being filtered by the fine pore filter screen inside, the squeezed liquid flows out through the coarse pore filter screen. After multiple squeezes, the solid particles in the thick slurry are compressed into filter cakes. After the filter cakes are compressed to a certain thickness, the slag discharge valve is opened, and they are pushed out by the push rod. The squeezed liquid is sucked into the liquid inlet through the liquid delivery port on the liquid discharge port by the action of a diaphragm pump, so that it can be recycled. Through the above method, traditional liquid discharging or materials with high humidity can be converted into squeezed filter cakes, which is more convenient for collecting waste. The filtrate can be recycled, greatly reducing sewage discharge, being more environmentally friendly, and suitable for popularization and use. Brief Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a concentration and slag discharge filtering device of the present utility model;

[0015] Figure 2 It is a schematic structural diagram of the concentration and slag discharge device in the present utility model;

[0016] Figure 3 It is the explosion head of the concentration and slag discharge device in the present utility model;

[0017] Figure 4 In the present utility model Figure 2 Horizontal cross-sectional view;

[0018] Figure 5 It is the general assembly drawing of a concentration and slag discharge filtering device of the present utility model. Detailed Embodiment

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings in the specification and specific embodiments. Embodiment

[0020] A concentration and slag discharge filtering device includes a filter body. A filter element is arranged inside the filter body. A filter screen 13 is arranged on the outer circle of the filter element. A squeegee assembly 11 that cooperates with it is arranged on the outer side of the filter screen 13. The squeegee assembly 11 is fixed on the connecting plates 13 on the upper and lower sides of the filter element by bolts. A flower plate 10 is arranged at the bottom of the connecting plate 13. A conical slag discharge chamber 8 is arranged at the bottom of the filter body. A liquid outlet 9 is communicated with the bottom of the filter body. A liquid inlet 2 is communicated with one side of the filter body. A drain port is communicated with the side of the slag discharge chamber 8. The bottom of the slag discharge chamber 8 is communicated with a concentration and slag discharge device 6 through a cut-off valve 7 and a flange;

[0021] A pressure gauge is connected to the top of the filter body through a threaded fit with a nut, and an exhaust port is communicated through a flange. The filter body is fixed on the bracket by bolts;

[0022] The liquid inlet 2 is located at a position slightly above one side of the filter body. The liquid outlet 9 is located in the middle of the slag discharge chamber 8 and extends from the slag discharge chamber 8. The liquid inlet 2 and the liquid outlet 9 are connected to the filter body and the slag discharge chamber 8 by any one of flange connection, threaded connection, and welding;

[0023] The concentrated slag discharge device 6 includes a three-way pipe 601. One end of the three-way pipe 601 is connected to a slag pushing device 607 through a flange, and the other end is connected to a slag discharge mechanism assembly through a flange. An air supply valve 613 is arranged on one side of the three-way pipe. The air supply valve 613 is a one-way valve. A slag discharge valve 5 is arranged at the other end of the slag discharge mechanism assembly. A slag discharge filter screen assembly is fixed inside the slag discharge mechanism assembly by bolts. The inside of the slag discharge filter screen assembly is a fine-hole filter screen 603, and the outside is a coarse-hole filter screen 602. The fine-hole filter screen 603 assembly is sleeved inside the coarse-hole filter screen 602 and locked from the outside by bolts. The bottom of the slag discharge filter screen assembly is communicated with a liquid discharge port 612 by welding. An inspection port is arranged at the bottom of the liquid discharge port 612. An inspection door panel 605 is fixed on the inspection port by bolts in cooperation with a gasket 606. A liquid infusion port 611 and a sewage discharge valve 604 are communicated with the liquid discharge port 612. The liquid infusion port 611 is connected to a diaphragm pump 4 through a pipeline. The other end of the diaphragm pump 4 is communicated with the liquid inlet 2 through a pipeline;

[0024] The slag pushing device 607 and the slag discharge mechanism assembly are on the same straight line. The slag pushing device 607 includes a housing. A push rod 608 is arranged inside the housing. One end of the push rod 608 is fixed with a piston 610 by bolts. The piston 610 is located inside the three-way pipe 601. A stuffing box 609 is arranged between the housing and the push rod 608. A mechanical seal is arranged at the outer end of the stuffing box 609. The push rod 608 is driven to operate by a cylinder. The piston 610 is integrally in a disc shape. The piston 610 cooperates with the fine-hole filter screen 603;

[0025] The technical solutions in the embodiments of the present application described above have at least the following technical effects or advantages:

[0026] A concentrated slag discharging device 6 is provided. The collected thick slurry is pushed into the slag discharging filter assembly through a push rod 608 and a piston 610. After being filtered by the fine pore filter 603 inside, the extruded liquid flows out from the coarse pore filter 602. The coarse pore filter 602 can play a certain supporting and protective role for the fine pore filter 603. After multiple squeezes, the solid particles in the thick slurry are compressed into filter cakes. The compressed material becomes dry material as the internal liquid is extruded. After the filter cake is compressed to a certain thickness, the slag discharging valve 5 is opened, and it is pushed out through the push rod 608. The extruded liquid is sucked into the liquid inlet 2 through the liquid conveying port 611 on the liquid discharging port 612 under the action of the diaphragm pump 4, so that it can be recycled; when the diaphragm pump 4 is continuously performing suction filtration work, the negative pressure inside will continuously increase. After reaching a certain pressure, the air supplement valve 613 will automatically open, and the pressure can be ensured to be maintained within a certain range through the air supplement valve to ensure its normal operation. Through the maintenance port, it is more convenient to repair or check the inside. Through the above method, the filter cake is more convenient to collect, the filtrate can be recycled, the sewage discharge is greatly reduced, and it is more environmentally friendly. Embodiment

[0027] A concentrated slag discharging and filtering device, wherein the scraper assembly 11 is composed of a scraper, a fixing part and a fixing plate. The scraper is fixed on the fixing plate through the fixing part. The fixing plate and the connecting plate 13 are perpendicular to each other. One end of the scraper is closely attached to the surface of the filter screen 13. When the connecting plate 13 is driven to rotate by a reduction gear motor, the connecting plate 13 drives the scraper to make a circular motion along the filter screen 13.

[0028] The perforated plate 10 is fixed inside the filter body by welding. The perforated plate 10 is provided with liquid leakage holes. The number of the liquid leakage holes is 8 - 13 and they are evenly distributed in a ring on the perforated plate 10.

[0029] The technical solutions in the embodiments of the present application at least have the following technical effects or advantages:

[0030] The connecting plate 13 is driven to rotate by a reduction gear motor. Since the scraper assembly 11 is fixed on the connecting plate 13, the scraper also rotates accordingly. Since the filter screen 13 does not move, the scraper continuously makes a circular motion to remove the particles on the surface of the filter screen 13. The large particles return to the original liquid, which can effectively prevent the filter screen 13 from being blocked and affecting filtration. The liquid filtered by the filter screen 13 and the filter element is discharged from the liquid outlet 9 for collection. The thick slurry intercepted outside flows through the perforated plate 10 below and into the slag discharging chamber 8. The partition valve 7 is opened, and the thick slurry enters the concentrated slag discharging device 6. The filtrate after being compressed in the concentrated slag discharging device 6 enters again from the liquid inlet 2 for recycling. It can keep the filter screen 13 unblocked so that it can be used normally for a long time. The large particle thick slurry can be recycled multiple times, which not only improves the service life of the filter, but also is more environmentally friendly and greatly improves the utilization rate of the thick slurry.

[0031] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A concentrated slag filtering device, comprising a filter body, characterized in that: The filter body is provided with a filter element, the outer ring of the filter element is provided with a filter screen, the outer side of the filter screen is provided with a scraper assembly that cooperates with it, the scraper assembly is fixed to the connecting plates on the upper and lower sides of the filter element by bolts, the bottom of the connecting plate is provided with a flower plate, the bottom of the filter body is provided with a conical slag discharge chamber, the bottom of the filter body is connected with a liquid outlet, one side of the filter body is connected with a liquid inlet, the side of the slag discharge chamber is connected with a drain port, and the bottom of the slag discharge chamber is connected with a concentrated slag discharge device through a partition valve and a flange; The concentrated slag discharge device comprises a three-way pipe, one end of the three-way pipe is connected to a slag pushing device through a flange, and the other end is connected to a slag discharge mechanism assembly through a flange, an air supply valve is arranged on one side of the three-way pipe, and the air supply valve is a one-way valve, and a slag discharge valve is arranged on the other end of the slag discharge mechanism assembly, a slag discharge filter assembly is fixed inside the slag discharge mechanism assembly by bolts, the slag discharge filter assembly has a fine-pore filter inside and a coarse-pore filter outside, the fine-pore filter assembly is sleeved inside the coarse-pore filter and is locked from the outside by bolts, a drain port is connected to the bottom of the drain port by welding, an inspection port is arranged at the bottom of the drain port, an inspection door plate is fixed to the inspection port by bolts and a sealing gasket, an infusion port and a drain valve are connected to the drain port, the infusion port is connected to a diaphragm pump through a pipe, and the other end of the diaphragm pump is connected to a liquid inlet through a pipe.

2. A concentrated slag filtering device as claimed in claim 1, characterized in that: The slag pushing device and the slag discharge mechanism assembly are located on the same straight line. The slag pushing device includes a shell, a push rod is arranged in the shell, a piston is fixed to one end of the push rod by bolts, the piston is located in the three-way pipe, a stuffing box is arranged between the shell and the push rod, an organic seal is arranged at the outer end of the stuffing box, the push rod is driven to operate by a cylinder, the piston is disc-shaped as a whole, and the piston cooperates with the fine-pore filter.

3. A concentrated slag filtering device as claimed in claim 1, characterized in that: The scraper assembly consists of a scraper, a fixing part and a fixing plate. The scraper is fixed to the fixing plate by the fixing part. The fixing plate and the connecting plate are perpendicular to each other. One end of the scraper is in close contact with the surface of the filter. When the connecting plate is driven to rotate by the reducer, the connecting plate drives the scraper to make a circular motion along the filter.

4. A concentrated slag filtering device as claimed in claim 1, characterized in that: The flower plate is fixed inside the filter body by welding. The flower plate is provided with leakage holes. The number of the leakage holes is 8-12 and they are evenly distributed on the flower plate in a ring shape.

5. A concentrated slag filtering device as claimed in claim 1, characterized in that: The top of the filter body is connected with a pressure gauge through a threaded nut, and is connected with an exhaust port through a flange. The filter body is fixed on the bracket through bolts.

6. A concentrated slag filtering device as claimed in claim 1, characterized in that: The liquid inlet is located at an upper position on one side of the filter body, the liquid outlet is located in the middle of the slag discharge chamber and extends from the slag discharge chamber, and the liquid inlet and liquid outlet are connected to the filter body and the slag discharge chamber by any one of flange connection, threaded connection, and welding.

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