Filtering device

Abstract

A filtering device comprises a filtering tank body, a feeding port, a discharging port and a liquid outlet are formed in the filtering tank body, the discharging port is formed in the bottom of the filtering tank body, the filtering tank body is connected with a corresponding reaction kettle through the feeding port and connected with a liquid collecting device and a backwashing tank through the liquid outlet, and a filtering disc, a tubular shaft and a spraying device are arranged in an inner cavity of the filtering tank body. The filter disc is arranged in the filter tank body through a pipe shaft, the filter tank body is connected with the corresponding cleaning tank through the spraying device, and the filter tank body is matched with the reaction kettle, the liquid collecting device, the backwashing tank and the cleaning tank to work and is connected with the reaction kettle, the liquid collecting device, the backwashing tank and the cleaning tank through corresponding pipelines. The device disclosed by the utility model is lower in pollution rate to the surrounding environment, safer and more environment-friendly, lower in pollution probability of filter residues, higher in utilization rate of materials and more energy-saving.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter device technical field, especially, relate to a filter device. BACKGROUND

[0002] Filter has extensive application in fine chemical industry and pharmaceutical field. But many filters still need open processing when processing filter residue, which brings high risk to the collection and processing of filter residue of high active catalyst or solid material using solvent, and when processing filter residue in open mode, not only the surrounding environment is seriously affected, but also the health of workers is at risk, and filter residue is easily polluted by the surrounding environment, so that some recyclable materials cannot be used due to external pollution, thereby increasing the overall production cost and seriously reducing the economic benefit. SUMMARY

[0003] The utility model aims at providing a more safe and environment-friendly non-open filter device to solve the technical problem that many existing filters still process filter residue in open mode.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows:

[0005] A filter device comprises a filter tank body, the filter tank body is provided with a feeding port, a discharging port, a liquid outlet and a residue outlet, wherein the discharging port and the residue outlet are arranged at the bottom of the filter tank body, the filter tank body is connected with a corresponding reaction kettle through the feeding port, and a liquid collecting device and a backwashing tank are connected with the filter tank body through the liquid outlet; a filter disc, a pipe shaft and a spraying device are arranged in the inner cavity of the filter tank body, the filter disc is installed in the filter tank body through the pipe shaft, the filter tank body is connected with a corresponding cleaning tank through the spraying device, and the filter tank body, the reaction kettle, the liquid collecting device, the backwashing tank and the cleaning tank work cooperatively, and they are connected with each other through corresponding pipelines.

[0006] Further, the pipe shaft is a pipe type shaft with a hollow inner portion and an open lower end, a plurality of filter discs are arranged on the pipe shaft from top to bottom, the inner ring of the filter disc is fixed to the outer sidewall of the pipe shaft, the inner cavity of the filter disc is connected with the inner cavity of the pipe shaft, and the bottom end of the pipe shaft is provided with an inlet end connected with a liquid outlet pipe, and the outlet end of the liquid outlet pipe is the liquid outlet of the filter tank body, which penetrates through the sidewall of the filter tank body and extends outward.

[0007] Further, a stirring motor corresponding to the pipe shaft is arranged above the filter tank body, the upper end of the pipe shaft penetrates through the top wall of the filter tank body and is connected with the shaft end of the stirring motor in a corresponding mode, a corresponding speed reducer is arranged between the pipe shaft and the stirring motor, a corresponding rotary joint is arranged between the pipe shaft and the liquid outlet pipe, and the filter tank body, the pipe shaft and the liquid outlet pipe are connected in a sealed mode.

[0008] Further, the bottom end of the side wall of the filter tank is a slant wall which is gradually inclined inward from top to bottom, the outlet end of the liquid outlet pipe is penetrated through the slant wall to the filter tank, the feeding inlet and the discharging outlet are both arranged on the slant wall, the discharging outlet is arranged at the bottom of the slant wall, a guide passage which is communicated with the feeding inlet is arranged on the inner side of the slant wall, the inlet of the guide passage is communicated with the inner cavity of the filter tank and is arranged above the bottom surface of the inner cavity of the filter tank, and the slag outlet is arranged on the bottom wall of the filter tank.

[0009] Further, the pipeline connected between the filter tank and the reaction kettle is a feeding pipeline, the outlet end of the feeding pipeline 21 is communicated with the feeding inlet of the filter tank, a filter pump and a feeding valve are arranged on the feeding pipeline, the feeding valve is arranged between the filter pump and the outlet end of the feeding pipeline, the pipeline connected between the filter tank and the liquid collecting device is a liquid conveying pipeline, the pipeline connected between the filter tank and the backwashing tank is a backwashing pipeline, the inlet of the liquid conveying pipeline and the outlet end of the backwashing pipeline are connected in parallel at the liquid outlet of the filter tank, a liquid conveying valve is arranged on the liquid conveying pipeline, a backwashing pump and a backwashing valve are arranged on the backwashing pipeline, and the backwashing valve is arranged between the backwashing pump and the outlet end of the backwashing pipeline.

[0010] Further, a washing-out pipeline is arranged at the feeding inlet of the filter tank, the inlet end of the washing-out pipeline is connected in parallel with the feeding pipeline at the feeding inlet, the outlet end of the washing-out pipeline is communicated with the inlet of the corresponding reaction kettle, and a washing-out valve is arranged on the washing-out pipeline.

[0011] Further, a guide-out pipeline is arranged at the feeding inlet of the filter tank, the inlet end of the guide-out pipeline is connected in parallel with the feeding pipeline and the washing-out pipeline at the feeding inlet, the filter tank is connected with a slag collecting device through the guide-out pipeline, and a corresponding guide-out valve is arranged on the guide-out pipeline.

[0012] Further, an air inlet, an overflow outlet and a pressure monitoring device are arranged on the top wall of the filter tank, and the air inlet is connected with a gas supply device through an air inlet pipeline.

[0013] Further, a slag waste pipeline is arranged at the slag outlet of the filter tank, a liquid waste pipeline is arranged at the discharging outlet, the filter tank is connected with a slag waste collector through the slag waste pipeline, and the filter tank is connected with a liquid waste collector through the liquid waste pipeline, a slag waste control valve is arranged on the slag waste pipeline, and a liquid waste control valve is arranged on the liquid waste pipeline.

[0014] Further, the spraying device comprises a top spraying device arranged on the top surface of the filter tank and a side spraying device arranged on the inner side of the filter tank, a pipeline connected between the spraying device and the cleaning tank is a cleaning pipeline, the cleaning pipeline comprises a first washing pipeline, a second washing pipeline and a third washing pipeline, the inlet end of the first washing pipeline is connected with the cleaning tank, the inlet ends of the second washing pipeline and the third washing pipeline are connected in parallel at the outlet end of the first washing pipeline, the outlet end of the second washing pipeline is communicated with the top spraying device, the outlet end of the third washing pipeline is communicated with the side spraying device, a cleaning pump is arranged on the first washing pipeline, and a cleaning valve is arranged on each of the second washing pipeline and the third washing pipeline.

[0015] The utility model discloses filter device through the mutual cooperation of multiple component devices realizes the non - open - type processing of filter residue, reduced the probability of the pollution of filter residue to the surrounding environment when processing, reduced the probability of the harm of filter residue to the staff body when processing, it is more safe and environment -friendly, simultaneously, for the recyclable part material in filter residue, reduced the probability of its pollution when filter residue processing, improved the utilization of raw material, it is more energy -conserving, improved the economic benefit of overall production. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole flow structure schematic diagram for the utility model uses;

[0017] Figure 2 It is the structure schematic diagram of filter tank body for the utility model Figure 1

[0018] Mark explanation in drawing: 1, filter tank body;11, feed inlet;12, discharge port;13, liquid outlet;14, filter disc;15, pipe shaft;16, liquid outlet pipe;17, inclined wall;18, gas inlet;19, residue outlet;2, reaction kettle;21, feed pipe line;22, filter pump;23, feed valve;3, liquid collecting device;31, liquid conveying pipe line;32, liquid conveying valve;4, cleaning tank;41, cleaning pipe line;42, cleaning pump;43, cleaning valve;5, gas conveying pipe line;6, backwashing tank;61, backwashing pipe line;62, backwashing pump;63, backwashing valve;64, washing-out pipe line;65, washing-out valve;7, leading-out pipe line;71, leading-out valve;8, material leading passage;81, pressure monitoring device;82, overflow;83, spraying device;84, stirring motor;85, speed reducer;86, rotary joint;9, waste residue pipe line;91, waste liquid pipe line. DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the utility model, the utility model a kind of filter device is further described in detail below with reference to the drawings.

[0020] As Figures 1-2 Indicated, the utility model filter device includes filter tank body 1, filter tank body 1 is connected with reaction kettle 2, cleaning tank 4, backwashing tank 6 and liquid collecting device 3 by corresponding pipe line, the reacted material in reaction kettle 2 is filtered in filter tank body 1 by corresponding pipe line conveying, filtered filtrate is conveyed to concentrate storage in liquid collecting device 3, for its subsequent use, by backwashing tank 6, the remaining usable material after filtration can be backwashed into reaction kettle 2, for its next reuse, after filtration, filter tank body 1 can be cleaned by cleaning tank 4, the cooperation of filter tank body 1 and reaction kettle 2, cleaning tank 4, backwashing tank 6 and liquid collecting device 3 makes the collection and processing of filter residue become closed, greatly reduces its risk of polluting surrounding environment or being polluted by environment.​

[0021] Further, the filter tank 1 is provided with a feed inlet 11, a discharge outlet 12, a liquid outlet 13 and a residue outlet 19, which are connected with the corresponding reaction kettle 2 through the feed inlet 11. The connecting pipeline between the filter tank 1 and the reaction kettle 2 is the feed pipeline 21. The inlet end of the feed pipeline 21 is communicated with the outlet of the reaction kettle 2, and the outlet end is communicated with the feed inlet 11 of the filter tank 1. A filter pump 22 is arranged on the feed pipeline 21 between the filter tank 1 and the reaction kettle 2. The filter pump 22 provides power for the flow of the material in the feed pipeline 21. A filter disc 14 and a pipe shaft 15 are arranged in the inner cavity of the filter tank 1. The pipe shaft 15 is a hollow pipe shaft with an open lower end, which is vertically arranged and connected with the top of the filter tank 1. The filter disc 14 is installed in the filter tank 1 through the pipe shaft 15. A plurality of filter discs 14 are evenly distributed on the pipe shaft 15 from top to bottom. The inner ring of the filter disc 14 is fixed on the outer sidewall of the pipe shaft 15, and the inner cavity of the filter disc 14 is communicated with the inner cavity of the pipe shaft 15. The bottom end of the pipe shaft 15 is provided with a liquid outlet pipe 16. The inlet end of the liquid outlet pipe 16 is communicated with the lower end opening of the pipe shaft 15. The outlet end of the liquid outlet pipe 16 extends out of the filter tank 1 from the sidewall. The liquid outlet pipe 16 is sealingly connected with the filter tank 1. The outlet end of the liquid outlet pipe 16 is the liquid outlet 13 of the filter tank 1. During operation, the reacted material in the reaction kettle 2 is transported into the filter tank 1 through the feed inlet 11 by the filter pump 22 through the feed pipeline 21. The filtrate in the reacted material is separated from the material under the action of the filter disc 14. The separated filtrate flows from the inner cavity of the filter disc 14 to the inner cavity of the pipe shaft 15, and then is discharged from the filter tank 1 through the liquid outlet pipe 16 from the liquid outlet 13. The filter tank 1 is connected with the liquid collecting device 3 through the liquid outlet 13. The connecting pipeline between the filter tank 1 and the liquid collecting device 3 is the liquid conveying pipeline 31. In this embodiment, a liquid collecting tank is used as the liquid collecting device 3. The inlet end of the liquid conveying pipeline 31 is communicated with the liquid outlet 13, and the outlet end is communicated with the liquid collecting tank. The filtrate discharged from the liquid outlet 13 is transported into the liquid collecting tank through the liquid conveying pipeline 31 for subsequent use. The bottom of the filter tank 1 is provided with the discharge outlet 12 and the residue outlet 19. The discharge outlet 12 is arranged on the sidewall of the bottom of the filter tank 1, and the residue outlet 19 is arranged on the bottom wall of the filter tank. The residual filter residue after the filtration of the material can be discharged from the filter tank 1 through the discharge outlet 12 or the residue outlet 19. In this embodiment, the bottom end of the sidewall of the filter tank 1 is a slanted wall 17 which gradually inclines inward from top to bottom. The outlet end of the liquid outlet pipe 16 extends out of the filter tank 1 from the slanted wall 17. The discharge outlet 12 is arranged at the bottom of the slanted wall 17, which is lower than the position where the liquid outlet pipe 16 is connected with the slanted wall 17.

[0022] Further, the pipe shaft 15 and the filter tank 1 are rotatably connected, the upper part of the filter tank 1 is provided with a stirring motor 84 corresponding to the pipe shaft 15, the upper end of the pipe shaft 15 penetrates the top wall of the filter tank 1 and is connected to the shaft end of the stirring motor 84, a corresponding speed reducer 85 is arranged between the pipe shaft 15 and the stirring motor 84, so that the rotation between the two is more stable, a corresponding rotary joint 86 is arranged between the pipe shaft 15 and the liquid outlet pipe 16, the two are connected through the rotary joint 86, the stirring motor 84 can provide rotary power for the pipe shaft 15 through the speed reducer 85, so as to drive the filter disc 14 to rotate, and the material in the filter tank 1 is stirred, the filter tank 1 is provided with an air inlet 18, which is arranged on the top wall of the filter tank 1, the air inlet 18 is connected to a gas supply device through a corresponding pipeline, the pipeline between the two is an air inlet pipeline 5, the gas supply device can supply compressed gas into the filter tank 1 through the air inlet pipeline 5, the gas is inert gas, for example: nitrogen, etc., the compressed gas can protect the high-activity catalyst in the reacted material during filtration, and can blow dry the solid filter residue in the filter tank 1 after filtration, so as to make it more convenient to discharge, and can also blow dry the internal components of the filter tank 1 during cleaning, so as to accelerate the cleaning and drying speed.

[0023] Further, the pipeline connecting the filter tank 1 and the backwashing tank 6 is a backwashing pipeline 61, the backwashing pipeline 61 is connected to the liquid outlet 13 of the filter tank 1 in parallel with the liquid conveying pipeline 31, the backwashing tank 6 provides backwashing liquid for the filter tank 1 through the backwashing pipeline 61, the inlet end of the backwashing pipeline 61 is connected to the backwashing tank 6, the outlet end of the backwashing pipeline 61 is connected to the inlet end of the liquid conveying pipeline 31 in parallel at the liquid outlet 13, a corresponding backwashing pump 62 is arranged on the backwashing pipeline 61, which provides power for the liquid flow in the backwashing pipeline 61, a corresponding backwashing valve 63 is arranged at the outlet end of the backwashing pipeline 61 between the backwashing pump 62 and the filter tank 1, the inlet end of the liquid conveying pipeline 31 is provided with a corresponding liquid conveying valve 32, the backwashing valve 63 and the liquid conveying valve 32 cooperate to control the flow direction of the liquid in the backwashing pipeline 61 and the liquid conveying pipeline 31, the feed inlet 11 is arranged on the inclined wall 17 at the bottom of the filter tank 1, the inner side of the inclined wall 17 is provided with a material guiding passage 8 connected to the feed inlet 11, the outlet of the material guiding passage 8 is connected to the feed inlet 11, the inlet of the material guiding passage 8 is connected to the inner cavity of the filter tank 1 and is arranged on the bottom surface of the inner cavity of the filter tank 1, the feed inlet 11 is provided with a washing-out pipeline 64 connected in parallel with the feed pipeline 21, the outlet end of the washing-out pipeline 64 is connected to the inlet of the corresponding reaction kettle 2, the inlet end of the washing-out pipeline 64 is connected to the outlet end of the feed pipeline 21 in parallel at the feed inlet 11 of the filter tank 1, a corresponding washing-out valve 65 is arranged on the washing-out pipeline 64, the outlet end of the feed pipeline 21 is provided with a corresponding feed valve 23, the washing-out valve 65 and the feed valve 23 cooperate to control the flow direction of the liquid in the washing-out pipeline 64 and the feed pipeline 21,

[0024] After filtration, the backwash tank 6 can cooperate with the backwash pipeline 61 and the washing-out pipeline 64 to backwash the filter tank body 1. During backwashing, the liquid outlet 13 is used as the backwash inlet of the filter tank body 1, and the feed inlet 11 is used as the backwash outlet of the filter tank body 1. The backwash liquid in the backwash tank 6 enters the inner cavity of the pipe shaft 15 through the backwash pipeline 61 under the action of the backwash pump 62, and then washes the filter cake attached to the filter disc 14 through the inner cavity of the filter disc 14. The backwashed material enters the washing-out pipeline 64 through the feed inlet 11, and then reenters the reaction kettle 2 through the inlet of the reaction kettle 2 for reuse. The washing-out valve 65 is arranged at the inlet end of the washing-out pipeline 64. The washing-out pump arranged on the washing-out pipeline 64 between the reaction kettle 2 and the washing-out valve 65 can provide power for the liquid flow in the washing-out pipeline 64.

[0025] Further, the filter tank body 1 is externally connected to a filter residue collecting device through a corresponding pipeline at the feed inlet 11. The pipeline is the discharge pipeline 7. The inlet end of the discharge pipeline 7 is connected in parallel with the feed pipeline 21 and the washing-out pipeline 64 at the feed inlet 11 of the filter tank body 1. The outlet end of the discharge pipeline 7 is externally connected to the filter residue collecting device. A corresponding discharge valve 71 is arranged on the discharge pipeline 7, which controls whether the material in the discharge pipeline 7 flows or not. When the filtered reaction material needs to be replaced, the backwash liquid washes the material attached to the filter disc 14 under the action of the backwash pump 62. The high-activity catalyst or other solid materials that can be discharged by liquid in the material form backwashed material under the action of the backwash liquid. The backwashed material is input into the filter residue collecting device through the feed inlet 11 and the discharge pipeline 7, thereby realizing the collection of the high-activity catalyst and other solid materials that can be discharged by liquid. The discharge valve 71 is arranged at the inlet end of the discharge pipeline 7. A discharge pump is arranged on the discharge pipeline 7, which provides power for the flow of the material in the discharge pipeline 7.

[0026] Further, the filter disc 14 is a sintered mesh filter disc 14, which has higher strength, better corrosion resistance, better permeability, higher filtration precision, and is easier to clean and more suitable for filtering large flow and backwashing.

[0027] Further, the filter tank body 1 is provided with a pressure monitoring device 81 and an overflow port 82, both of which are arranged on the top wall of the filter tank body 1. In this embodiment, a pressure gauge is used as the pressure monitoring device 81. The pressure gauge monitors the pressure in the filter tank body 1 in real time to prevent the pressure in the filter tank body 1 from being too high or too low to affect the normal work. When there is too much material or gas in the filter tank body 1, it can be discharged outward through the overflow port 82 to prevent the pressure in the filter tank body 1 from being too high and causing danger.

[0028] The filter tank 1 is provided with a spraying device 83 in the inner cavity. The inlet of the spraying device 83 extends from the filter tank 1 and is connected to the cleaning tank 4 through a corresponding pipeline, which is a cleaning pipeline 41. A corresponding cleaning pump 42 is arranged on the cleaning pipeline 41 to provide power for the liquid flow in the cleaning pipeline 41. The spraying device 83 includes top spraying and side spraying. The top spraying is arranged on the top surface of the inner cavity of the filter tank 1, and the side spraying is arranged on the inner side wall of the filter tank 1. The cleaning pipeline 41 includes a first washing pipeline, a second washing pipeline and a third washing pipeline. The inlet end of the first washing pipeline is connected to the outlet of the cleaning tank 4. The inlet ends of the second washing pipeline and the third washing pipeline are connected in parallel to the outlet end of the first washing pipeline. The cleaning pump 42 is arranged on the first washing pipeline. The outlet end of the second washing pipeline is connected to the top spraying. The outlet end of the third washing pipeline is connected to the side spraying. Cleaning valves 43 are arranged on the second washing pipeline and the third washing pipeline to control the liquid flow in the pipelines. During operation, the cleaning tank 4 provides cleaning liquid for the spraying device 83 through the cleaning pipeline 41 under the action of the cleaning pump 42. The cleaning liquid is sprayed from the top spraying and the side spraying under the control of the cleaning valves 43, so that the spraying device 83 sprays and cleans the inner cavity of the filter tank 1 from different directions. The top spraying sprays from above the filter disc 14, and the side spraying sprays from the side of the filter disc 14. After cleaning, the spraying device 83 is closed, and the gas supply device is started to blow air into the inner cavity of the filter tank 1 through the air inlet 18, which accelerates the evaporation speed of the liquid in the inner cavity of the filter tank 1. After drying, the gas supply device is closed, and the cleaning of the filter tank 1 is completed. At this time, the filter tank 1 can be used for a new round of filtering work.

[0029] Further, the top of the filter tank 1 is a detachable sealing head. The components on the top of the filter tank 1, including the pressure air inlet 18, the monitoring device 81, the overflow port 82 and the top spraying, are arranged on the sealing head. The stirring motor 84 and the speed reducer 85 are arranged above the sealing head. The upper end of the pipe shaft 15 passes through the sealing head and is connected to the speed reducer 85 correspondingly. This arrangement is more convenient for maintenance of the components in the filter tank 1.

[0030] Further, the slag outlet 19 of the filter tank 1 is externally connected with a slag collector through a corresponding slag pipeline 9, and the discharge outlet 12 is externally connected with a liquid collector through a corresponding liquid pipeline 91, wherein the slag pipeline 9 is provided with a corresponding slag control valve for controlling the flow of materials in the slag pipeline 9, and the liquid pipeline 91 is provided with a corresponding liquid control valve for controlling the flow of liquid in the liquid pipeline 91; after the filtration is completed, the solid filter residue in the filter tank 1 is discharged outward to the slag collector under the action of a slag pump for subsequent treatment, and the waste liquid after the filter tank 1 is cleaned by the spraying device 83 is discharged outward to the liquid collector under the action of a liquid pump for subsequent treatment; the slag control valve is arranged at the inlet end of the slag pipeline 9, the slag pipeline 9 is provided with a corresponding slag pump, the liquid control valve is arranged at the inlet end of the liquid pipeline 91, and the liquid pipeline 91 is provided with a corresponding liquid pump.

[0031] Further, a jacket heat preservation device is additionally arranged outside the filter tank 1, which provides heat preservation effect for liquid materials with temperature requirements during filtration.

[0032] In use, all the control valves and delivery pumps on the pipelines are in the closed state when not working. First, the feed pipeline 21 and the delivery pipeline 31 start to work, the feed pipeline 21 delivers the reacted material in the reactor 2 into the filter tank 1, after the delivery is completed, the feed pipeline 21 stops working, the filter disc 14 filters the reacted material in the filter tank 1, the solid part remains in the filter tank 1, and the separated filtrate is delivered to the liquid collecting tank through the delivery pipeline 31 for centralized storage, the gas supply device works synchronously, the inert compressed gas is sprayed into the filter tank 1 through the gas inlet 18 to provide protection for the high-activity catalyst inside, when there is no filtrate in the reacted material, the delivery pipeline 31 and the gas supply pipeline stop working, at this time, the filtration of the reacted material is completed. At this time, if the catalyst, solid material and other reaction raw materials or reaction solvents in the reacted material need to be reused, the catalyst in the filtrate will be left on the filter disc 14, the backwashing pipeline 61 and the washing-out pipeline 64 start to work, the backwashing tank 6 fills the backwashing liquid into the filter disc 14 through the backwashing pipeline 61 to backwash the filter device, in this process, the stirring motor 84 works synchronously, which drives the filter disc 14 to rotate through the shaft 15, so that the catalyst on the filter disc 14 can be more easily washed down, the backwashed material is delivered to the reactor 2 through the washing-out pipeline 64, until all the materials in the filter tank 1 are backwashed into the reactor 2, the backwashing pipeline 61, the washing-out pipeline 64 and the stirring motor 84 stop working, the backwashed material is used again in the reactor 2, and part of the raw materials in the reacted material can be used repeatedly for multiple times.After the filtration is completed, when part of the reaction raw materials in the reaction material needs to be replaced, the reaction material contains high-activity catalysts that need to be liquid-sealed for storage or other solid materials can be discharged by liquid, the backwashing pipeline 61 and the guide-out pipeline 7 start to work, the backwashing pipeline 61 fills the backwashing liquid into the filter disc 14 to backwash the filter device, the stirring motor 84 drives the filter disc 14 to rotate synchronously through the pipe shaft 15, the backwashing speed of the filter device is accelerated, the material in the filter tank 1 is conveyed to the filter residue collecting device through the guide-out pipeline 7, and then the high-activity catalysts that need to be liquid-sealed for storage and other solid materials that can be discharged by liquid can be collected in a more safe and environmentally friendly closed manner through the filter residue collecting device; when the catalyst activity in the reaction material needs to be replaced or part of the material needs to be discharged in solid, the air inlet pipeline 5 and the stirring motor 84 work synchronously, the air supply device blows dry the solid filter residue in the filter tank 1 through the air inlet pipeline 5, the stirring motor 84 drives the filter disc 14 to rotate synchronously through the pipe shaft 15, and the drying speed of the solid filter residue is accelerated; after the solid filter residue is dried, the air inlet pipeline 5 stops working, the residue outlet 19 is opened, and the waste residue pipeline 9 starts to work, which, under the cooperation of the stirring motor 84, discharges the solid filter residue out of the filter tank 1 and conveys the solid filter residue to the corresponding waste residue collector; the stirring accelerates the speed and smoothness of the solid filter residue out of the filter tank 1; after the filter residue in the filter tank 1 is completely discharged, the waste residue pipeline 9 and the stirring motor 84 stop working, and the treatment of the filter residue is completed; this process is fully closed, which greatly reduces the probability of pollution to the surrounding environment during the filter residue treatment process.

[0033] The filter device realizes non-open processing of filter residues through mutual cooperation of various mechanical devices, reduces the pollution probability of high-activity catalysts and other materials to the surrounding environment during the filter residue treatment, reduces the pollution of the surrounding environment to the recyclable and reusable part of the materials, improves the reuse rate of the reaction materials, is more energy-saving and environmentally friendly, reduces the waste rate of raw materials in production, and improves the economic benefits of overall production.

[0034] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. A filtration device, characterized in that, It includes a filter tank (1), which has an inlet (11), an outlet (12), a liquid outlet (13), and a slag outlet (19). The outlet (12) and the slag outlet (19) are located at the bottom of the filter tank (1). The filter tank (1) is connected to the corresponding reaction vessel (2) through the inlet (11), and a liquid collection device (3) and a backwash tank (6) are connected through the liquid outlet (13). The inner cavity is equipped with a filter plate (14), a pipe shaft (15) and a spray device (83). The filter plate (14) is installed in the filter tank (1) through the pipe shaft (15). The filter tank (1) is connected to the corresponding cleaning tank (4) through the spray device (83). The filter tank (1) works in cooperation with the reaction vessel (2), the liquid collection device (3), the backwash tank (6) and the cleaning tank (4), and it is connected to the four of them through corresponding pipelines.

2. The filtration device according to claim 1, characterized in that, The tube shaft (15) is a hollow tube shaft with an open bottom. Multiple filter discs (14) are evenly distributed on the tube shaft (15) from top to bottom. Their inner rings are fixed on the outer wall of the tube shaft (15), and their inner cavities are connected to the inner cavity of the tube shaft (15). The bottom end of the tube shaft (15) is provided with an outlet pipe (16) connected to the inlet end. The outlet end of the outlet pipe (16) is the outlet (13) of the filter tank (1), which passes through the side wall of the filter tank (1) and extends outward to the outside of the filter tank (1).

3. The filtration device according to claim 2, characterized in that, A stirring motor (84) corresponding to the tube shaft (15) is provided above the filter tank (1). The upper end of the tube shaft (15) passes through the top wall of the filter tank (1) and is connected to the shaft end of the stirring motor (84). A corresponding reducer (85) is provided between the tube shaft (15) and the stirring motor (84). A corresponding rotary joint (86) is provided between the tube shaft (15) and the liquid outlet pipe (16). The filter tank (1), the tube shaft (15), and the liquid outlet pipe (16) are all sealed connections.

4. The filtration device according to claim 2, characterized in that, The bottom of the side wall of the filter tank (1) is an inclined wall (17) that gradually slopes inward from top to bottom. The outlet end of the liquid outlet pipe (16) passes through the filter tank (1) from the inclined wall (17). The feed inlet (11) and the discharge outlet (12) are both located on the inclined wall (17). The discharge outlet (12) is located at the bottom of the inclined wall (17). The inner side of the inclined wall (17) is provided with a material guiding passage (8) that connects the outlet and the feed inlet (11). The inlet of the material guiding passage (8) is connected to the inner cavity of the filter tank (1) and is located above the bottom surface of the inner cavity of the filter tank (1). The slag outlet (19) is located on the bottom wall of the filter tank (1).

5. The filtration device according to claim 4, characterized in that, The pipeline connecting the filter tank (1) and the reactor (2) is a feed pipeline (21). The outlet end of the feed pipeline (21) is connected to the feed inlet (11) of the filter tank (1). A filter pump (22) and a feed valve (23) are installed on the feed pipeline (21). The feed valve (23) is located between the filter pump (22) and the outlet end of the feed pipeline (21). The pipeline connecting the filter tank (1) and the liquid collection device (3) is a liquid delivery pipeline (31). The pipeline connecting the filter tank (1) and the backwash tank (6) is the backwash pipeline (61). The inlet of the infusion pipeline (31) and the outlet of the backwash pipeline (61) are connected in parallel at the outlet (13) of the filter tank (1). An infusion valve (32) is provided on the infusion pipeline (31). A backwash pump (62) and a backwash valve (63) are provided on the backwash pipeline (61). The backwash valve (63) is located between the backwash pump (62) and the outlet of the backwash pipeline (61).

6. The filtration device according to claim 5, characterized in that, The filter tank (1) is provided with a washing pipe (64) at the feed inlet (11). The inlet end of the washing pipe (64) is connected in parallel with the feed pipe (21) at the feed inlet (11). The outlet end of the washing pipe (64) is connected to the inlet of the corresponding reactor (2). A washing valve (65) is provided on the washing pipe (64).

7. The filtration device according to claim 6, characterized in that, The filter tank (1) is provided with an outlet pipe (7) at the feed inlet (11). The inlet end of the outlet pipe (7) is connected in parallel with the feed pipe (21) and the washout pipe (64) at the feed inlet (11). The filter tank (1) is connected to a filter residue collection device through the outlet pipe (7). A corresponding outlet valve (71) is provided on the outlet pipe (7).

8. The filtration device according to claim 1, characterized in that, The filter tank (1) is provided with an air inlet (18), an overflow outlet (82) and a pressure monitoring device (81) on its top wall, wherein the air inlet (18) is connected to an external air supply device through an air inlet pipe (5).

9. The filtration device according to claim 1, characterized in that, The filter tank (1) is provided with a waste residue pipeline (9) at the slag outlet (19) and a waste liquid pipeline (91) at the discharge outlet (12). The filter tank (1) is connected to a waste residue collector through the waste residue pipeline (9) and a waste liquid collector through the waste liquid pipeline (91). A waste residue control valve is provided on the waste residue pipeline (9) and a waste liquid control valve is provided on the waste liquid pipeline (91).

10. The filtration device according to claim 1, characterized in that, The spraying device (83) includes a top spray on the top surface of the filter tank (1) and a side spray on the inner side of the filter tank (1). The pipeline between the spraying device (83) and the cleaning tank (4) is a cleaning pipeline (41), which includes a first cleaning pipe, a second cleaning pipe and a third cleaning pipe. The inlet end of the first cleaning pipe is connected to the cleaning tank (4). The inlet ends of the second cleaning pipe and the third cleaning pipe are connected in parallel to the outlet end of the first cleaning pipe. The outlet end of the second cleaning pipe is connected to the top spray, and the outlet end of the third cleaning pipe is connected to the side spray. A cleaning pump (42) is provided on the first cleaning pipe, and a cleaning valve (43) is provided on both the second cleaning pipe and the third cleaning pipe.

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