Filtering, concentrating and deslagging filtering device

Abstract

The utility model discloses a filtration concentration deslagging filtration device, in particular relates to filter field, including support frame, filter chamber, speed reducer, liquid inlet and liquid outlet, filter chamber is installed inside support frame, and the upper end face of filter chamber is buckled and connected with cover body, and the upper end face of cover body is equipped with speed reducer through flange plate, and the liquid outlet is equipped with the liquid inlet and liquid outlet. A liquid inlet is formed in the outer diameter surface of the filter cavity, a liquid outlet is formed in the side end face of the filter cavity, an isolating valve is arranged on the bottom end face of the filter cavity and communicated with a compression assembly, the compression assembly is communicated with a diaphragm pump through a water pipe, and the diaphragm pump is communicated with the liquid inlet through a circulating return pipe. Residues flow into the compression assembly, are compressed into filter cakes through multiple times of extrusion and are pushed out through the air cylinder, liquid in the pressing process flows to the liquid inlet again through the circulation backflow pipe, then the liquid is recycled, emission of high-concentration solid and liquid is greatly reduced, and the device is more environmentally friendly and suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the field of filters, and more specifically, to a filtering, concentrating and slag-discharging filter device. Background Art

[0002] A residue filter is a device specifically used for separating solid particles or residues from fluids. Its main function is to protect downstream equipment from wear and blockage while ensuring the purity of the fluid. In fields such as industrial production and sewage treatment, residue filters play an important role in helping to improve product quality and ensure the smooth operation of the process flow;

[0003] For example, the patent application No. CN202210751302.7 discloses a scraper-type automatic filtering and slag discharging device. Through the setting of the slag discharging device, during the transmission and discharge of residues inside the second slag discharging cylinder and the first slag discharging cylinder, residues are stored inside the second slag discharging cylinder and the first slag discharging cylinder to prevent liquid leakage. After the second slag discharging cylinder and the first slag discharging cylinder are filled, the second slag discharging cylinder moves and opens to discharge the residues, which is beneficial to the low water content of the discharged residues and facilitates the subsequent treatment and recycling of the residues; the above device solves the problem that the traditional filter is frequently blocked when filtering viscous materials and soft impurities. During the filtering and discharging process of residues, there is a situation where residues adhere to the inner wall of the device. However, when filtering, it is necessary to filter the impurities inside the filter and separate the impurities from the filter in a timely manner to avoid the accumulation of impurities, resulting in poor fluid flow in the filter. And during the filtering process, it is also necessary to prevent the impurity from blocking the circulation return pipe and avoid the abnormal return of water flow, ultimately resulting in the abnormal use of the slag discharging device;

[0004] Therefore, a filtering, concentrating and slag-discharging filter device is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a filtering, concentrating and slag-discharging filter device to solve the problems raised in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A filtering, concentrating and slag discharging filtering device, comprising a support frame, a filtering cavity, a reduction gear, a liquid inlet and a liquid outlet. The filtering cavity is installed inside the support frame, and a cover body is snap-connected to the upper end surface of the filtering cavity. A reduction gear is arranged on the upper end surface of the cover body through a flange plate, and the reduction gear is installed at the output end of a driving motor. A liquid inlet is arranged on the outer diameter surface of the filtering cavity, and a liquid outlet is arranged on the side end surface of the filtering cavity. A pressure relief valve is arranged on the upper end surface of the cover body. A filtering component is arranged inside the filtering cavity. A cut-off valve is arranged on the bottom end surface of the filtering cavity, and the cut-off valve is connected to a compression component in a communicating manner. The compression component is connected to a diaphragm pump through a water pipe in a communicating manner, and the diaphragm pump is connected to the liquid inlet through a circulating return pipe;

[0007] The filtering component includes a filter screen cylinder and a scraper. The filter screen cylinder is installed inside the filtering cavity, and fixing rings are arranged at the edges of the upper and lower end surfaces of the filter screen cylinder. Sliding grooves are dug on the opposite surfaces of the two fixing rings, and the sliding grooves are slidably connected with the scraper. One end of the scraper penetrates through the fixing ring and is connected to a fixing frame, and the scraper is connected to the flange plate at the output end of the reduction gear through the fixing frame in a limiting manner. A transmission shaft penetrates through the upper end surface of the filter screen cylinder on the fixing frame, and an L-shaped plate is connected to the outer diameter surface of the transmission shaft through a fixing sleeve. The fixing frame is fixedly connected to the scraper, the transmission shaft, the fixing sleeve and the L-shaped plate, and the scraper, the transmission shaft, the fixing sleeve and the L-shaped plate rotate synchronously with the fixing frame.

[0008] Preferably, a fixing plate is arranged below the filter screen cylinder, and a plurality of through holes are arranged on the upper end surface of the fixing plate. A slag discharging chamber is arranged below the fixing plate, and the slag discharging chamber is connected to the compression component through the cut-off valve in a communicating manner.

[0009] Preferably, the compression component includes a cylinder and an air inlet valve. The cut-off valve is connected to the air inlet valve in a communicating manner, and a cylinder is arranged on one side of the air inlet valve. A piston is arranged at the telescopic end of the cylinder, a slag discharging filter screen is arranged on one side of the piston, and a slag discharging valve is arranged on the side of the slag discharging filter screen away from the piston.

[0010] Preferably, the liquid inlet and the liquid outlet form a communicating structure through the filtering cavity, the liquid inlet and the pressure relief valve form a communicating structure through the filtering cavity, the liquid inlet and the cut-off valve form a communicating structure through the filtering cavity, the compression component and the input end of the diaphragm pump form a communicating structure through a water pipe, and the output end of the diaphragm pump and the liquid inlet form a communicating structure through the circulating return pipe.

[0011] Preferably, the scraper and the fixing ring form a sliding structure through the sliding groove, the scraper and the L-shaped plate slide along the outer diameter surface and the inner diameter surface of the filter screen cylinder respectively. The filter screen cylinder is longitudinally installed inside the filtering cavity, and the liquid inlet and the liquid outlet form a communicating structure through the filter screen cylinder.

[0012] Preferably, the slag discharge filter screen is cylindrical, and the diameter of the slag discharge filter screen is the same as the diameter of the piston. The piston and the inner wall of the slag discharge filter screen form a sliding structure, and the cut-off valve is in communication with the diaphragm pump through the slag discharge filter screen and the water pipe.

[0013] The technical effects and advantages of the present utility model are as follows:

[0014] Compared with the prior art, when the filtering and concentrating slag discharge filtering device is in use, the residue flows into the compression assembly, and after being squeezed multiple times, the residue is compressed into a filter cake, which is pushed out by the air cylinder. And the liquid in the pressing process flows back to the liquid inlet through the circulating return pipe, thereby recycling the liquid, greatly reducing the material loss, being more environmentally friendly, and being suitable for popularization and use.

[0015] Compared with the prior art, when the filtering and concentrating slag discharge filtering device is in use, the material enters from the liquid inlet for filtering. The original liquid enters from the inside of the filter screen cylinder to the outside, and the residue is intercepted outside the filter screen cylinder. The clear liquid is discharged from the lower part inside the filter screen cylinder. During filtration, the scraper and the L-shaped plate continuously make circular motions to remove the residue on the outer surface and the inner surface of the filter screen. The residue returns to the original liquid to prevent the filter screen cylinder from being blocked and affecting filtration. The solution intercepted outside the filter screen cylinder flows into the bottom slag discharge chamber through the through holes dug in the lower fixing plate. Under the action of its own pressure, the residue is intercepted in the slag discharge filter screen, and the original liquid is pumped back to the liquid inlet by the bottom diaphragm pump for continuous circulation. After closing the cut-off valve, the residue intercepted in the slag discharge filter screen is continuously compressed and extruded into a cake by the reciprocating motion of the air cylinder and the piston. During the compression process, due to the closing of the cut-off valve, the bottom diaphragm pump continuously performs suction filtration work. When the thickness of the filter cake is less than the set thickness during compression, it is repeatedly compressed until the filter cake reaches a certain thickness. At this time, the slag discharge valve is opened for slag discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural diagram of the present utility model.

[0017] Figure 2 It is a three-dimensional structural diagram of the filtering cavity of the present utility model.

[0018] Figure 3 It is a three-dimensional structural diagram of the compression assembly of the present utility model.

[0019] Figure 4 It is a three-dimensional structural diagram of the slag discharge filter screen of the present utility model.

[0020] Figure 5 It is a three-dimensional structural diagram of the filter screen cylinder of the present utility model.

[0021] Figure 6 It is a front sectional structural diagram of the filtering cavity of the present utility model.

[0022] The reference numerals are: 1, support frame; 2, filtration cavity; 3, reduction gear; 4, liquid inlet; 5, liquid outlet; 6, cover body; 7, pressure relief valve; 8, filtration component; 81, filter screen cylinder; 82, scraper; 83, fixing ring; 84, chute; 85, fixing frame; 86, transmission shaft; 87, L-shaped plate; 9, isolation valve; 10, compression component; 101, cylinder; 102, air charging valve; 103, piston; 104, slag discharge filter screen; 105, slag discharge valve; 11, diaphragm pump; 12, circulating return pipe; 13, fixing plate; 14, through hole; 15, slag discharge chamber. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0024] As shown in the Figures 1 to 3 accompanying drawings, a filtration, concentration and slag discharge filtration device includes a support frame 1, a filtration cavity 2, a reduction gear 3, a liquid inlet 4 and a liquid outlet 5. The filtration cavity 2 is installed inside the support frame 1, and a cover body 6 is snap-connected to the upper end surface of the filtration cavity 2. A reduction gear 3 is provided on the upper end surface of the cover body 6 through a flange plate, and the reduction gear 3 is installed at the output end of a driving motor. A liquid inlet 4 is provided on the outer diameter surface of the filtration cavity 2, a liquid outlet 5 is provided on the side end surface of the filtration cavity 2, a pressure relief valve 7 is provided on the upper end surface of the cover body 6, a filtration component 8 is provided in the inner cavity of the filtration cavity 2, an isolation valve 9 is provided on the bottom end surface of the filtration cavity 2, and the isolation valve 9 is connected in communication with a compression component 10. The compression component 10 is connected in communication with a diaphragm pump 11 through a water pipe, and the diaphragm pump 11 is connected in communication with the liquid inlet 4 through a circulating return pipe 12;

[0025] The filtration component 8 includes a filter screen cylinder 81 and a scraper 82. The filter screen cylinder 81 is installed in the inner cavity of the filtration cavity 2, and fixing rings 83 are provided at the edges of the upper end surface and the lower end surface of the filter screen cylinder 81. A chute 84 is dug on the opposite surfaces of the two fixing rings 83, and the chute 84 is slidably connected with the scraper 82. One end of the scraper 82 passes through the fixing ring 83 and is connected with a fixing frame 85, and the scraper 82 is limitedly connected to the flange plate at the output end of the reduction gear 3 through the fixing frame 85. A transmission shaft 86 is provided through the upper end surface of the filter screen cylinder 81 on the fixing frame 85, and an L-shaped plate 87 is connected to the outer diameter surface of the transmission shaft 86 through a fixing sleeve. The fixing frame 85 is fixedly connected to the scraper 82, the transmission shaft 86, the fixing sleeve and the L-shaped plate 87, and the scraper 82, the transmission shaft 86, the fixing sleeve and the L-shaped plate 87 rotate synchronously with the fixing frame 85.

[0026] Wherein: The material starts to be filtered from the liquid inlet 4. The raw liquid enters from the inside of the filter screen cylinder 81 to the outside, the residue is intercepted outside the filter screen cylinder 81, the clear liquid is discharged from the lower part inside the filter screen cylinder 81. During filtration, the scraper 82 and the L-shaped plate 87 continuously make circular motions to remove the residue on the outer and inner surfaces of the filter screen. The residue returns to the raw liquid again to prevent the filter screen cylinder 81 from being blocked and affecting filtration. The solution intercepted outside the filter screen cylinder 81 flows into the bottom slag discharge chamber 15 through the through hole 14 dug in the lower fixing plate 13. Among them, the reducer 3 is connected with a fixing frame 85 through a flange for limit, so that the scraper 82, the transmission shaft 86, the fixing sleeve and the L-shaped plate 87 rotate synchronously with the fixing frame 85 to clean the residue on the outer and inner surfaces of the filter screen cylinder 81, thereby avoiding the residue from blocking the filter screen cylinder 81. Embodiment

[0027] Based on Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods, as Figures 1 to 6 shown, see the following description in detail:

[0028] As a preferred implementation method, a fixing plate 13 is provided below the filter screen cylinder 81, and several groups of through holes 14 are provided on the upper end surface of the fixing plate 13. A slag discharge chamber 15 is provided below the fixing plate 13, and the slag discharge chamber 15 is connected to the compression assembly 10 through a cut-off valve 9.

[0029] As a preferred implementation method, the compression assembly 10 includes a cylinder 101 and an air supply valve 102. The cut-off valve 9 is connected to the air supply valve 102, and an air cylinder 101 is provided on one side of the air supply valve 102. A piston 103 is provided at the telescopic end of the air cylinder 101. A slag discharge filter screen 104 is provided on one side of the piston 103, and a slag discharge valve 105 is provided on the side of the slag discharge filter screen 104 away from the piston 103. Among them, the solution intercepted outside the filter screen cylinder 81 flows into the bottom slag discharge chamber 15 through the through hole 14 dug in the lower fixing plate 13. Under the action of its own pressure, the residue is intercepted in the slag discharge filter screen 104, and the raw liquid is pumped back to the liquid inlet 4 by the bottom diaphragm pump 11 for continuous circulation. After closing the cut-off valve 9, the residue intercepted in the slag discharge filter screen 104 is continuously compressed into a cake by the reciprocating motion of the air cylinder 101 and the piston 103. During the compression process, since the cut-off valve 9 is closed, the bottom diaphragm pump 11 continuously performs suction filtration work. When the thickness of the filter cake is less than the set thickness during compression, the slag discharge valve 105 is opened for slag discharge.

[0030] As a preferred embodiment, the liquid inlet 4 and the liquid outlet 5 form a communication structure through the filtration cavity 2, the liquid inlet 4 and the pressure relief valve 7 form a communication structure through the filtration cavity 2, the liquid inlet 4 and the isolation valve 9 form a communication structure through the filtration cavity 2, the compression assembly 10 and the input end of the diaphragm pump 11 form a communication structure through a water pipe, and the output end of the diaphragm pump 11 and the liquid inlet 4 form a communication structure through the circulation return pipe 12. Among them, the material enters from the liquid inlet 4 for filtration. The original liquid enters from the outside of the filter screen cylinder 81 into the inside, the clear liquid is discharged from the lower part inside the filter screen cylinder 81, and the solution intercepted outside the filter screen cylinder 81 flows into the bottom slag discharge chamber 15 through the through hole 14 dug in the lower fixing plate 13. The original liquid is pumped back to the liquid inlet 4 by the bottom diaphragm pump 11 for continuous circulation.

[0031] As a preferred embodiment, the scraper 82 and the fixed ring 83 form a sliding structure through the chute 84. The scraper 82 and the L-shaped plate 87 slide along the outer diameter surface and the inner diameter surface of the filter screen cylinder 81 respectively. The filter screen cylinder 81 is longitudinally installed in the inner cavity of the filtration cavity 2, and the liquid inlet 4 and the liquid outlet 5 form a communication structure through the filter screen cylinder 81.

[0032] As a preferred embodiment, the slag discharge filter screen 104 is cylindrical, and the diameter of the slag discharge filter screen 104 is the same as the diameter of the piston 103. The piston 103 and the inner wall of the slag discharge filter screen 104 form a sliding structure. The isolation valve 9 and the diaphragm pump 11 form a communication structure through the slag discharge filter screen 104 and a water pipe.

[0033] The working process of the present utility model is as follows: First, the material enters from the liquid inlet 4 for filtration. The original liquid enters from the inside of the filter screen cylinder 81 to the outside, and the residue is intercepted outside the filter screen cylinder 81. The clear liquid is discharged from the lower part inside the filter screen cylinder 81. During filtration, the scraper 82 and the L-shaped plate 87 continuously make circular motions to remove the residue on the outer surface and the inner surface of the filter screen. The residue returns to the original liquid again to prevent the filter screen cylinder 81 from being blocked and affecting filtration. The solution intercepted outside the filter screen cylinder 81 flows into the bottom slag discharge chamber 15 through the through hole 14 dug in the lower fixing plate 13. Under the action of its own pressure, the residue is intercepted in the slag discharge filter screen 104. The original liquid is pumped back to the liquid inlet 4 by the bottom diaphragm pump 11 for continuous circulation. After closing the isolation valve 9, the residue intercepted in the slag discharge filter screen 104 is continuously compressed into a cake by the reciprocating motion of the cylinder 101 and the piston 103. During the compression process, since the isolation valve 9 is closed, the bottom diaphragm pump 11 continuously performs suction filtration work. When the filter cake is compressed to a certain thickness, the slag discharge valve 105 is opened for slag discharge.

Claims

1. A filtering, concentrating and slag discharging filtering device, comprising a support frame, a filtering cavity, a speed reducer, a liquid inlet and a liquid outlet, characterized in that: The filter cavity is installed inside the support frame, and a cover body is snap-connected to the upper end surface of the filter cavity. A speed reducer is arranged on the upper end surface of the cover body through a flange plate, and the speed reducer is installed at the output end of the driving motor. A liquid inlet is arranged on the outer diameter surface of the filter cavity, and a liquid outlet is arranged on the side end surface of the filter cavity. A pressure relief valve is arranged on the upper end surface of the cover body. A filter component is arranged in the inner cavity of the filter cavity. A cut-off valve is arranged on the bottom end surface of the filter cavity, and the cut-off valve is connected in communication with a compression component. The compression component is connected in communication with a diaphragm pump through a water pipe, and the diaphragm pump is connected in communication with the liquid inlet through a circulating return pipe; The filter component includes a filter screen cylinder and a scraper. The filter screen cylinder is installed in the inner cavity of the filter cavity, and fixing rings are arranged at the edges of the upper end surface and the lower end surface of the filter screen cylinder. Sliding grooves are dug on the opposite surfaces of the two fixing rings, and the sliding grooves are slidably connected with the scraper. One end of the scraper penetrates through the fixing ring and is connected with a fixing frame, and the scraper is limitedly connected with the flange plate at the output end of the speed reducer through the fixing frame. A transmission shaft is arranged through the upper end surface of the filter screen cylinder by the fixing frame, and an L-shaped plate is connected to the outer diameter surface of the transmission shaft through a fixing sleeve. The fixing frame is fixedly connected with the scraper, the transmission shaft, the fixing sleeve and the L-shaped plate, and the scraper, the transmission shaft, the fixing sleeve and the L-shaped plate rotate synchronously with the fixing frame.

2. The filtering and concentrating slag discharging filtering device according to claim 1, wherein: A fixing plate is arranged below the filter screen cylinder, and a plurality of through holes are arranged on the upper end surface of the fixing plate. A slag discharge chamber is arranged below the fixing plate, and the slag discharge chamber is connected in communication with the compression component through a cut-off valve.

3. The filtering and concentrating slag discharging filtering device according to claim 1, characterized in that: The compression component includes a cylinder and an air inlet valve. The cut-off valve is connected in communication with the air inlet valve, and a cylinder is arranged on one side of the air inlet valve. A piston is arranged at the telescopic end of the cylinder, a slag discharge filter screen is arranged on one side of the piston, and a slag discharge valve is arranged on the side of the slag discharge filter screen away from the piston.

4. The filtering and concentrating slag discharging filtering device according to claim 3, wherein: The liquid inlet and the liquid outlet form a communication structure through the filter cavity. The liquid inlet and the pressure relief valve form a communication structure through the filter cavity. The liquid inlet and the cut-off valve form a communication structure through the filter cavity. The compression component and the input end of the diaphragm pump form a communication structure through a water pipe. The output end of the diaphragm pump and the liquid inlet form a communication structure through a circulating return pipe.

5. A filtering, concentrating and slag discharging filtering device according to claim 1, characterized in that: The scraper forms a sliding structure with the fixing ring through the sliding groove. The scraper and the L-shaped plate slide along the outer diameter surface and the inner diameter surface of the filter screen cylinder respectively. The filter screen cylinder is longitudinally installed in the inner cavity of the filter cavity, and the liquid inlet and the liquid outlet form a communication structure through the filter screen cylinder.

6. The filtering and concentrating slag discharging filtering device according to claim 3, wherein: The slag discharge filter screen is in a cylindrical shape, and the diameter of the slag discharge filter screen is the same as the diameter of the piston. The piston forms a sliding structure with the inner wall of the slag discharge filter screen. The cut-off valve and the diaphragm pump form a communication structure through the slag discharge filter screen and a water pipe.

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