Vertical blade filter

Abstract

During filtration, the input quantity of filtrate to be filtered is slightly greater than the output quantity of the filtrate, so that the liquid level of the filtrate to be filtered in a shell is gradually increased to the height of an overflow pipe, and at the moment, a blade filter plate is completely immersed in the filtrate to be filtered so as to ensure the filtration efficiency. When the liquid level detection sensor detects that the liquid level in the annular liquid storage chamber reaches a certain height, the controller opens the water pump, so that the electromagnetic three-way valve is communicated with the return pipe, and the to-be-filtered liquid in the annular liquid storage chamber is conveyed into the shell to be filtered; the problem of liquid level height of to-be-filtered liquid is solved; in addition, after filtering is completed, when a residue discharging valve needs to be opened for cleaning, due to the fact that the extending direction of the backflow pipe is in the U shape, the part, higher than the feeding connector and lower than the position between the blade filtering plates, of the liquid to be filtered can be discharged through the feeding connector, the backflow pipe and the liquid discharging pipe, and the problem that the residual liquid to be filtered is wasted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a vertical blade filter. Background Art

[0002] Vertical blade filter refers to filtering equipment suitable for filtering and separating processes such as decolorized oil filtering, clarifying filtering, and crystallization in the production of oil, chemical, pharmaceutical and other industries. Its structure includes a shell, a feed interface arranged on the bottom side of the shell, a slag discharge valve arranged at the bottom of the shell, a discharge pipe arranged horizontally in the middle of the shell, and a plurality of blade filter plates arranged in the shell and connected to the discharge pipe at the lower end. For example, the filtering process involved in the processing of rice wine is: during filtering, the wine containing filter aid (diatomaceous earth) is transported from the feed interface to the shell, and after the height of the wine gradually rises to the height of the blade filter plate, the wine is filtered through the blade filter plate, and the filtered wine is discharged from the discharge pipe after being gathered, thereby achieving filtration.

[0003] However, the following problems exist when filtering with a vertical leaf filter: (1) It is difficult to maintain a balance between the delivery volume of the filtrate and the output volume of the filtrate. If the delivery volume of the filtrate entering the shell is less than the filtrate discharge volume for a long time, the liquid level of the filtrate in the shell will decrease. If the height is lower than the height of the leaf filter plate, the efficiency of the vertical leaf filter cannot be fully utilized; if the delivery volume of the filtrate entering the shell is greater than the filtrate discharge volume for a long time, the liquid level of the filtrate in the shell will increase, resulting in excessive filtrate in the shell, and the bag filter may penetrate from the sealing cover connection at the top of the shell; (2) After a filtration is completed, filter aids and filtrate will accumulate at the bottom of the shell (the liquid level is lower than the filtrate retained in the leaf filter plate). If the filter aids and filtrate are directly discharged through the slag discharge valve, part of the filtrate will be wasted. Utility Model Content

[0004] The utility model aims to provide a vertical blade filter, which solves the problem of liquid level height of filtrate by arranging an annular liquid storage chamber and an overflow pipe, and solves the problem of residual filtrate being wasted by arranging an additional liquid discharge pipe.

[0005] The above technical object of the utility model is achieved by the following technical solutions: A vertical vane filter, comprising a housing, a feed interface provided on the side of the bottom of the housing, a slag discharge valve provided at the bottom end of the housing, a discharge pipe horizontally provided in the middle of the housing, and a plurality of vane filter plates provided in the housing and communicating with the discharge pipe at the lower end. An annular liquid storage chamber is provided on the circumferential side of the housing. An overflow pipe higher than the vane filter plate is provided on the side of the housing, and the overflow pipe communicates with the annular liquid storage chamber. An electromagnetic three-way valve is provided at the feed interface. A return pipe is provided between the bottom of the annular liquid storage chamber and one of the interfaces of the electromagnetic three-way valve. A water pump is provided in the middle of the return pipe. A liquid level detection sensor is provided at the top of the annular liquid storage chamber. A controller signal-connected to the electromagnetic three-way valve and the water pump is provided on the housing. The extending direction of the return pipe is in a "U" shape, and a drain pipe with a drain valve is provided at the bottom of the return pipe.

[0006] By adopting the above technical solutions, during filtration, the input amount of the liquid to be filtered is slightly larger than the output amount of the filtrate, so that the liquid level height of the liquid to be filtered in the housing gradually rises to the height of the overflow pipe. At this time, all the vane filter plates are immersed in the liquid to be filtered to ensure the filtration efficiency, and the excess liquid to be filtered flows from the overflow pipe to the annular liquid storage chamber for temporary storage. When the liquid level detection sensor detects that the liquid level in the annular liquid storage chamber reaches a certain height, the controller then turns on the water pump to make the electromagnetic three-way valve communicate with the return pipe, so as to realize transporting the liquid to be filtered in the annular liquid storage chamber into the housing for filtration, and solve the problem of the liquid level height of the liquid to be filtered. In addition, after filtration is completed, when the slag discharge valve needs to be opened for cleaning, since the extending direction of the return pipe is in a "U" shape, at this time, for the part of the liquid to be filtered between the feed interface and below the vane filter plate, when the feed interface and the return pipe are made to communicate through the electromagnetic three-way valve, this part of the liquid to be filtered can be discharged through the feed interface, the return pipe, and the drain pipe, and solve the problem of waste of the remaining liquid to be filtered.

[0007] The further setting of the utility model is: The bottom of the housing is in an inverted cone shape, the annular liquid storage chamber is detachably connected to the housing, the annular liquid storage chamber is sleeved on the inverted cone-shaped part of the housing from bottom to top, and a connecting component is provided between the annular liquid storage chamber and the housing.

[0008] By adopting the above technical solutions, the bases of existing models of vertical vane filters are all in an inverted cone shape (because a slag discharge valve is provided at the bottom end). At this time, the annular liquid storage chamber is sleeved on the inverted cone-shaped part of the housing from bottom to top for installation, and is connected through a connecting component, which has the function of facilitating the installation of the annular liquid storage chamber.

[0009] The utility model is further configured as follows: the connecting assembly includes a plurality of supporting plates supported on the peripheral side of the shell and the lower surface of the annular liquid storage chamber, a first connecting screw arranged between the supporting plate and the shell, and a second connecting screw arranged between the supporting plate and the lower surface of the annular liquid storage chamber.

[0010] By adopting the above technical solution, the annular liquid storage chamber can be connected and supported by multiple support sheets, thereby improving the installation stability of the annular liquid storage chamber.

[0011] The utility model is further configured as follows: the inner ring of the annular liquid storage chamber is provided with a rubber buffer pad for pressing against the peripheral side of the shell.

[0012] By adopting the above technical solution, the provision of the rubber buffer pad can achieve the effect of buffering and shock absorption.

[0013] The utility model is further configured as follows: an annular cover is detachably connected to the upper surface of the annular liquid storage chamber, a liquid inlet is provided on the annular cover, and a connecting hose is provided between the liquid inlet and the overflow pipe.

[0014] By adopting the above technical solution and providing the annular cover, the annular liquid storage chamber can be cleaned after the annular cover is opened.

[0015] The utility model is further configured as follows: a plurality of clamping sleeves for the connecting hoses to be embedded and buckled are arranged on the peripheral side of the shell.

[0016] By adopting the above technical solution, the provision of multiple ferrules can realize the buckling and fixing of the connecting hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure numerals: 1. Shell; 2. Feed interface; 3. Slag discharge valve; 4. Discharge pipe; 5. Blade filter plate; 6. Annular liquid storage chamber; 61. Annular cover; 62. Liquid inlet; 7. Overflow pipe; 8. Solenoid three-way valve; 9. Reflux pipe; 10. Water pump; 11. Controller; 12. Drain pipe; 13. Drain valve; 14. Connecting assembly; 141. Support plate; 142. First connecting screw; 143. Second connecting screw; 15. Rubber buffer pad; 16. Connecting hose; 17. Ferrule; 18. Liquid level detection sensor. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Embodiment: A vertical blade filter, such as Figure 1As shown in the figure, it includes a housing 1, a feed interface 2 provided on the bottom side of the housing 1, a slag discharge valve 3 provided at the lowermost end of the housing 1, a discharge pipe 4 horizontally provided in the middle of the housing 1, and a plurality of blade filter plates 5 provided in the housing 1 and communicating with the discharge pipe 4 at the lower end.

[0021] As Figure 1 shown in the figure, an annular liquid storage chamber 6 is provided on the circumferential side of the housing 1, an overflow pipe 7 higher than the blade filter plate 5 is provided on the side of the housing 1, and the overflow pipe 7 communicates with the annular liquid storage chamber 6; an electromagnetic three-way valve 8 is provided at the feed interface 2, and a return pipe 9 is provided between the bottom of the annular liquid storage chamber 6 and one of the interfaces of the electromagnetic three-way valve 8, and a water pump 10 is provided in the middle of the return pipe 9. A liquid level detection sensor 18 is provided at the top of the annular liquid storage chamber 6, and a controller 11 signal-connected to the electromagnetic three-way valve 8 and the water pump 10 is provided on the housing 1. The extending direction of the return pipe 9 is in a "U" shape, and a drain pipe 12 with a drain valve 13 is provided at the bottom of the return pipe 9.

[0022] As Figure 1 shown in the figure, the bottom of the housing 1 is in an inverted conical shape, the annular liquid storage chamber 6 is detachably connected to the housing 1, the annular liquid storage chamber 6 is sleeved on the inverted conical part of the housing 1 from bottom to top, and a connecting component 14 is provided between the annular liquid storage chamber 6 and the housing 1. The connecting component 14 includes a plurality of support pieces 141 supported on the circumferential side of the housing 1 and the lower surface of the annular liquid storage chamber 6, a first connecting screw 142 provided between the support piece 141 and the housing 1, and a second connecting screw 143 provided between the support piece 141 and the lower surface of the annular liquid storage chamber 6. At the same time, a rubber buffer pad 15 for pressing against the circumferential side of the housing 1 is provided on the inner ring of the annular liquid storage chamber 6.

[0023] As Figure 1 shown in the figure, an annular cover 61 is detachably connected to the upper surface of the annular liquid storage chamber 6, a liquid inlet 62 is provided on the annular cover 61, and a connecting hose 16 is provided between the liquid inlet 62 and the overflow pipe 7. A plurality of card sleeves 17 for the connecting hose 16 to be embedded and fastened are provided on the circumferential side of the housing 1.

[0024] Implementation effect: During filtration, the input volume of the liquid to be filtered is slightly greater than the output volume of the filtrate, causing the liquid level height of the liquid to be filtered in the housing 1 to gradually rise to the height of the overflow pipe 7. At this time, the vane filter plate 5 is completely immersed in the liquid to be filtered to ensure the filtration efficiency. The excess liquid to be filtered flows from the overflow pipe 7 to the annular liquid storage chamber 6 for temporary storage. When the liquid level detection sensor 18 detects that the liquid level in the annular liquid storage chamber 6 reaches a certain height, the controller 11 opens the water pump 10 to make the electromagnetic three-way valve 8 communicate with the return pipe 9, so as to realize transporting the liquid to be filtered in the annular liquid storage chamber 6 into the housing 1 for filtration, solving the problem of the liquid level height of the liquid to be filtered; in addition, after the filtration is completed, when the slag discharge valve 3 needs to be opened for cleaning, since the extending direction of the return pipe 9 is in a "U" shape, at this time, the part of the liquid to be filtered that is higher than the feed interface 2 and lower than the vane filter plate 5 can pass through the feed interface 2, the return pipe 9, and the drain pipe 12 when the feed interface 2 and the return pipe 9 are made to communicate through the electromagnetic three-way valve 8, solving the problem of waste of the remaining liquid to be filtered.

[0025] The bases of the existing models of vertical vane filters are all in an inverted conical shape (because the slag discharge valve 3 is provided at the lowermost end). At this time, the annular liquid storage chamber 6 is installed by sleeving it from bottom to top on the inverted conical part of the housing 1 and is connected through the connecting component 14, which has the function of facilitating the installation of the annular liquid storage chamber 6. The annular liquid storage chamber 6 can be connected and supported through multiple support pieces 141, thereby improving the installation stability of the annular liquid storage chamber 6. The setting of the rubber buffer pad 15 can achieve the function of buffering and shock absorption. By setting the annular cover 61, the annular liquid storage chamber 6 can be cleaned after the annular cover 61 is opened. The setting of multiple ferrules 17 can achieve the function of buckling and fixing the connecting hose 16.

[0026] This specific embodiment is only an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A vertical vane filter, comprising a housing (1), a feed interface (2) provided on the bottom side of the housing (1), a slag discharge valve (3) provided at the lowermost end of the housing (1), a discharge pipe (4) horizontally provided in the middle of the housing (1), and a plurality of vane filter plates (5) provided in the housing (1) and having their lower ends communicated with the discharge pipe (4), characterized in that: An annular liquid storage chamber (6) is provided on the circumferential side of the housing (1), an overflow pipe (7) higher than the vane filter plate (5) is provided on the side of the housing (1), and the overflow pipe (7) communicates with the annular liquid storage chamber (6); an electromagnetic three-way valve (8) is provided at the feed interface (2), a return pipe (9) is provided between the bottom of the annular liquid storage chamber (6) and one of the interfaces of the electromagnetic three-way valve (8), a water pump (10) is provided in the middle of the return pipe (9), a liquid level detection sensor (18) is provided at the top of the annular liquid storage chamber (6), and a controller (11) signal-connected to the electromagnetic three-way valve (8) and the water pump (10) is provided on the housing (1); The extending direction of the return pipe (9) is in a "U" shape, and a drain pipe (12) having a drain valve (13) is provided at the bottom of the return pipe (9).

2. A vertical blade filter according to claim 1, characterized in that: The bottom of the housing (1) is in an inverted conical cylinder shape, the annular liquid storage chamber (6) is detachably connected to the housing (1), the annular liquid storage chamber (6) is sleeved on the inverted conical cylinder-shaped part of the housing (1) from bottom to top, and a connecting assembly (14) is provided between the annular liquid storage chamber (6) and the housing (1).

3. A vertical blade filter according to claim 2, characterized in that: The connecting assembly (14) includes a plurality of support pieces (141) supported on the circumferential side of the housing (1) and the lower surface of the annular liquid storage chamber (6), first connecting screws (142) provided between the support pieces (141) and the housing (1), and second connecting screws (143) provided between the support pieces (141) and the lower surface of the annular liquid storage chamber (6).

4. A vertical blade filter according to claim 2, characterized in that: A rubber buffer pad (15) for pressing against the circumferential side of the housing (1) is provided on the inner ring of the annular liquid storage chamber (6).

5. A vertical blade filter according to claim 1, characterized in that: An annular cover (61) is detachably connected to the upper surface of the annular liquid storage chamber (6), a liquid inlet (62) is provided on the annular cover (61), and a connecting hose (16) is provided between the liquid inlet (62) and the overflow pipe (7).

6. A vertical blade filter according to claim 5, characterized in that: A plurality of card sleeves (17) for embedding and fastening the connecting hose (16) are provided on the circumferential side of the housing (1).

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