Diatomite vertical filter

Abstract

The utility model provides a vertical diatomite filtering machine. The vertical diatomite filtering machine comprises a filtering main container and a circulating main container, a hollow filtrate shaft is arranged on the central axis of the filtering main container, and the bottom end of the filtrate shaft is connected with a main pipeline; a cleaning injection pipe and an exhaust liquid pipe are arranged in the filtering main container; a filter disc is arranged on the filtrate shaft; a first interface is formed in the bottom of the filtering main container; a second interface, a third interface, a fourth interface and a fifth interface are arranged in the circulating main container; the fifth interface is communicated with an auxiliary cavity for placing coarse diatomite in the circulating main container; the first connector is connected with the stock solution inlet and the cleaning water inlet through a first pipeline, and a conveying pump is arranged on the first pipeline; the third interface is connected with the first pipeline through a second pipeline; the gas-liquid discharging pipe is connected with the second connector through a third pipeline; the main pipeline is connected with the fourth connector through a fourth pipeline, the fifth connector is connected with the third pipeline through a fifth pipeline, and the cleaning injection pipe is connected with the first pipeline through a sixth pipeline, so that the device has the advantages of automatic cleaning and long filtering time.

Description

Technical Field

[0001] The present application belongs to the technical field of wine filtration, and more specifically, to a diatomaceous earth vertical filter. Background Art

[0002] In the process of liquor production, liquor needs to be filtered to remove solid particles and make the liquor reach high transparency. Liquor turbidity removal is an important link in the liquor production process. However, if the liquor turbidity removal technology is improper, it will not only fail to effectively solve the turbidity and precipitation of liquor, but also affect the flavor of liquor. In liquor production, low-temperature turbidity of reduced-proof liquor has always been a difficult problem. The traditional filtering method is to use membrane filter or diatomaceous earth vertical filter for filtration, such as PC tube filter, sand rod filter and sintered tube filter; these membrane filters all use filter element or filter rod for filtration, which is mainly used to remove some solid particles, making it difficult to make liquor reach high transparency, and the filter element is easy to clog, and the flavor of the wine is also greatly limited.

[0003] The diatomaceous earth vertical filter is a disc filter, which uses multiple disc filter discs on the filter tube for filtering. The filter discs form filter membranes through the diatomaceous earth. As the filtering work proceeds, the filter membrane thickness increases and the pressure increases, making the filter disc easy to deform or the filtering efficiency becomes low, thereby reducing the filtering effect and filtering time. In addition, the existing diatomaceous earth vertical filter does not have a cleaning structure in the filter tank, and needs to be disassembled and cleaned, resulting in the common problem of inconvenience in cleaning. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the embodiments of the present application is to provide a diatomaceous earth vertical filter.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a diatomaceous earth vertical filter, comprising: a filtering main container and a circulating main container;

[0006] A hollow filtrate shaft is provided on the central axis of the main filtration container, one end of which is connected to a main pipeline provided at the bottom end of the main filtration container; a cleaning spray pipe is provided in the main filtration container;

[0007] A filter sheet in communication with the interior of the filtrate shaft is stacked on the filtrate shaft; a gas exhaust pipe is provided in the main filter container, one end of the gas exhaust pipe extends to the inner top of the main filter container, and the other end extends to the bottom of the main filter container and protrudes out;

[0008] The bottom of the main filtering container is also provided with a first interface;

[0009] The main circulation container is provided with a main cavity and a secondary cavity which are interconnected, and coarse diatomaceous earth is placed in the secondary cavity;

[0010] The main circulation container is provided with a second interface, a third interface, a fourth interface and a fifth interface; the fifth interface is connected to the auxiliary cavity;

[0011] The first interface is connected to the raw liquid inlet and the cleaning water inlet through a first pipe, and a delivery pump is provided on the first pipe; the third interface is connected to the first pipe through a second pipe; the exhaust liquid pipe and the second interface are connected through a third pipe; the main pipe is connected to the fourth interface through a fourth pipe, and a filtrate discharge pipe and a recovery liquid discharge pipe are also provided on the main pipe, the fifth interface is connected to the third pipe through a fifth pipe; the cleaning injection pipe is connected to the first pipe through a sixth pipe.

[0012] In one embodiment, a first three-way valve, a second three-way valve and a third three-way valve are provided on the first pipeline; the first three-way valve is connected to the raw liquid inlet and the cleaning water inlet; the second three-way valve is respectively connected to the delivery pump, the third three-way valve and the second pipeline; the third three-way valve is also respectively connected to the first interface and the sixth pipeline.

[0013] In one embodiment, the fourth pipeline is provided with a first two-way valve, the filtrate discharge pipe is provided with a second two-way valve, the third pipeline is provided with a third three-way valve, the fifth pipeline is provided with a fourth two-way valve, the second pipeline is provided with a fifth two-way valve, the third pipeline is provided with an air intake pipe, the air intake pipe is provided with a sixth two-way valve, and the recovery liquid discharge pipe is provided with a seventh two-way valve.

[0014] In one embodiment, a turbidity sensor is provided on the main pipeline, a first lighted sight glass is provided on the fourth pipeline, a second lighted sight glass and a flow meter are provided on the filtrate discharge pipe; a glass sight glass is provided on the main filtration container, and a pressure gauge is provided on the third pipeline.

[0015] In one embodiment, a first liquid level sensor is provided at the bottom of the filtering main container, a second liquid level sensor is provided at the top of the filtering main container, a third liquid level sensor is provided at the bottom of the circulating main container, a fourth liquid level sensor is provided at the top of the circulating main container, and a fifth liquid level sensor is provided in the middle; a sixth liquid level sensor is provided on the raw liquid inlet.

[0016] In one embodiment, a transmission shaft seat is sealed in the bottom opening of the main filtering container, a transmission main shaft is sealed and rotatably provided in the transmission shaft seat, the transmission main shaft is a hollow shaft, one end of the transmission main shaft is sealed and docked with one end of the filtrate shaft, and a filtrate connecting pipe is rotatably provided at the other end, and the filtrate connecting pipe is connected to the main pipeline; a locking sleeve is provided at the other end of the filtrate shaft, and the locking sleeve is rotatably connected to the top of the main filtering container through a self-aligning bearing.

[0017] In one embodiment, the transmission main shaft is drivingly connected to a driving assembly that drives it to rotate.

[0018] In one embodiment, a sewage outlet is provided at the bottom of the main filtering container, the sewage outlet is connected to a sewage pipe, and an eighth two-way valve is provided on the sewage pipe.

[0019] In one embodiment, the filter plate includes: a liner, a chassis, a first filter screen and a second filter screen, the liner is sealably arranged at the center of the chassis, a plurality of liquid outlet holes are arranged at intervals on the side wall of the liner, a plurality of convex ribs are arranged on the upper surface of the chassis, a filtrate flow channel is formed between adjacent convex ribs, the filtrate flow channel is connected with the liquid outlet hole, the first filter screen is mounted on the chassis and supported by the plurality of convex ribs, the second filter screen is mounted on the first filter screen, and the filter hole diameter of the second filter screen is smaller than the filter hole diameter of the first filter screen.

[0020] In one embodiment, the fifth interface is connected to the sub-cavity through an additive liquid nozzle, an outlet hole is provided at the bottom of the sub-cavity, and a fine dredging tube is provided on the additive liquid nozzle and extends into the outlet hole; a main cover and a sub-cover for opening and closing the main cavity and the sub-cavity are respectively provided on the top of the main circulation container.

[0021] The beneficial effects of the diatomaceous earth vertical filter provided by the present application are:

[0022] 1. The working process of the diatomaceous earth vertical filter is fully automated, reducing manual participation, automatic cleaning, and ensuring filtering efficiency.

[0023] 2. The cleaning water enters the cleaning spray pipe through the first pipe and the sixth pipe to spray the cleaning water to each filter disc. At the same time, the filtrate shaft rotates, and the impact force of the cleaning water is used to automatically clean the filter disc without disassembly and assembly, saving time and effort.

[0024] 3. By setting a sub-chamber in the main circulation container and placing coarse diatomaceous earth in the sub-chamber, coarse diatomaceous earth can be introduced into the main container during the filtration process, so that the coarse diatomaceous earth is mixed in the filter layer of the filter disc, so that the filter layer is in a loose state, effectively increasing the filtration time and ensuring the filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1A schematic diagram of the overall connection relationship of the diatomaceous earth vertical filter provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of the main filter container in the diatomaceous earth vertical filter provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the main structure of the circulating main container in the diatomaceous earth vertical filter provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the overall structure of a filter disc of a diatomaceous earth vertical filter provided in an embodiment of the present application;

[0030] Figure 5 A schematic cross-sectional view of a filter disc of a diatomaceous earth vertical filter provided in an embodiment of the present application;

[0031] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0032] Figure 7 for Figure 5 The enlarged view of point B in the middle;

[0033] Figure 8 A schematic diagram of the structure of the bottom plate of the filter disc of the diatomaceous earth vertical filter provided in the embodiment of the present application;

[0034] Fig. 9 A schematic diagram of the three-dimensional structure of a liner ring in a filter disc of a diatomaceous earth vertical filter provided in an embodiment of the present application;

[0035] Fig.10 This is a schematic diagram of the bottom view of the structure of the liner ring in the filter plate of the diatomaceous earth vertical filter provided in an embodiment of the present application.

[0036] Among them, the reference numerals in the figure are:

[0037] 1. Filtration main container; 2. Circulation main container; 3. Filtrate shaft; 4. Main pipeline; 5. Cleaning injection pipe; 6. Filter disc; 7. Exhaust liquid pipe; 8. First interface; 9. Main cavity; 10. Sub-cavity; 11. Second interface; 12. Third interface; 13. Fourth interface; 14. Fifth interface; 15. First pipeline; 16. Raw liquid inlet; 17. Cleaning water inlet; 18. Delivery pump; 19. Second pipeline; 20. Third pipeline; 21. Fourth pipeline; 22. Filtrate discharge pipe; 23. Recovery liquid discharge pipe; 24. Fifth pipeline; 25. Sixth pipeline; 26. First three-way valve; 27, second three-way valve; 28, third three-way valve; 29, first two-way valve; 30, second two-way valve; 31, third two-way valve; 32, fourth two-way valve; 33, intake pipe; 34, sixth two-way valve; 35, seventh two-way valve; 36, turbidity sensor; 37, first lighted sight glass; 38, second lighted sight glass; 39, flow meter; 40, glass sight glass; 41, pressure gauge; 42, first liquid level sensor; 43, second liquid level sensor; 44, third liquid level sensor; 45, fourth liquid level sensor; 46, fifth liquid level sensor; 47, sixth liquid level sensor ;48, transmission shaft seat;49, transmission main shaft;50, filtrate joint pipe;51, locking sleeve;52, self-aligning bearing;53, pulley;54, transmission belt;55, cleaning motor;56, main shaft seat seal;57, upper bearing;58, lower bearing;59, upper skeleton oil seal;60, upper oil seal pressure ring;61, filter shaft seal ring;62, locking nut;63, self-aligning shaft;64, seal;65, fastener;66, sewage outlet;67, sewage pipe;68, eighth two-way valve;69, bushing;70, chassis;71, first filter screen;72, second filter screen;7 3. Liquid outlet; 74. Raised rib; 75. Inner concave horizontal surface; 76. Inclined bottom surface; 77. First platform; 78. Second platform; 79. Pressed folded edge; 80. Third platform; 81. Raised ring; 82. Concave ring; 83. Pressing sealing ring; 84. Adding liquid spray pipe; 85. Outlet; 86. Clearing capillary; 87. Main cover; 88. Sub-cover; 89. Circulating liquid outlet pipe; 90. Circulating liquid inlet pipe; 91. First control valve; 92. Second control valve; 93. Third control valve; 94. Fifth two-way valve; 95. Explosion-proof sight light; 96. Main container sealing ring; 97. Locking assembly. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] like Figure 1-Figure 3 As shown, a diatomaceous earth vertical filter provided in an embodiment of the present application is now described. The diatomaceous earth vertical filter comprises: a filtering main container 1 and a circulating main container 2. The filtering main container 1 is used to filter wine or other raw liquids that need to be filtered; the circulating main container 2 is mainly used to place diatomaceous earth.

[0043] Specifically, a hollow filtrate shaft 3 is provided on the central axis of the main filter container 1, and one end of the filtrate shaft 3 is connected to the main pipeline 4 provided at the bottom end of the main filter container 1; a cleaning spray pipe 5 and an exhaust liquid pipe 7 are provided in the main filter container 1; the cleaning spray pipe 5 and the exhaust liquid pipe 7 are symmetrically arranged. A plurality of through holes are provided at intervals on the filtrate shaft 3, and a plurality of filter discs 6 are provided on the filtrate shaft 3 to communicate with the inside of the filtrate shaft 3 through the through holes. The filter discs 6 are hollow inside and a liquid outlet hole 73 is provided on the central side wall to connect with the through hole, and the upper surface of the filter discs 6 is used to form a diatomaceous earth filter layer; one end of the exhaust liquid pipe 7 extends to the inner top of the main filter container 1, and the other end extends to the bottom of the main filter container 1 and extends out; a liquid inlet pipe is also provided at the bottom of the main filter container 1, and the liquid inlet pipe has a first interface 8.

[0044] Specifically, the main circulation container 2 is provided with a main cavity 9 and a sub-cavity 10 which are interconnected. Coarse diatomaceous earth is placed in the sub-cavity 10, and mixed coarse diatomaceous earth and fine diatomaceous earth are placed in the main cavity 9. The coarse diatomaceous earth and fine diatomaceous earth in the main cavity 9 are used to form a filter layer on the filter disc 6 first; the coarse diatomaceous earth in the sub-cavity 10 is used to supplement the coarse diatomaceous earth in the filter layer during the raw liquid filtration process. The second interface 11, the third interface 12, the fourth interface 13 and the fifth interface 14 are respectively provided at the bottom of the main circulation container 2; wherein the fifth interface 14 is connected to the sub-cavity 10; the sub-cavity 10 is located in the middle and upper part of the main circulation container 2 and the bottom of the sub-cavity 10 is connected to the main cavity 9.

[0045] Among them, the first interface 8 is connected to the raw liquid inlet 16 and the cleaning water inlet 17 through the first pipeline 15, and the first pipeline 15 is provided with a delivery pump 18, which is a liquid explosion-proof delivery pump; the third interface 12 is connected to the first pipeline 15 through the second pipeline 19; the exhaust liquid pipe 7 and the second interface 11 are connected through the third pipeline 20; the main pipeline 4 is connected to the fourth interface 13 through the fourth pipeline 21, and the main pipeline 4 is also connected with a filtrate discharge pipe 22 and a recovery liquid discharge pipe 23, the fifth interface 14 is connected to the third pipeline 20 through the fifth pipeline 24; the cleaning injection pipe 5 is connected to the first pipeline 15 through the sixth pipeline 25. A second control valve 92 is provided at the raw liquid inlet 16 to control the raw liquid to be discharged into the first pipeline 15, a first control valve 91 is provided on the filtrate discharge pipe 22 to control the discharge of the filtrate, and a third control valve 93 is provided at the cleaning water inlet 17 to control the pure cleaning water to be discharged into the first pipeline 15. Specifically, the first pipeline 15 is provided with a first three-way valve 26, a second three-way valve 27 and a third three-way valve 28; the first three-way valve 26 connects the raw liquid inlet 16 and the cleaning water inlet 17; the second three-way valve 27 connects the delivery pump 18, the third three-way valve 28 and the second pipeline 19 respectively; the third three-way valve 28 is also connected to the first interface 8 and the sixth pipeline 25 respectively. The fourth pipeline 21 is provided with a first two-way valve 29, the filtrate discharge pipe 22 is provided with a second two-way valve 30, the third pipeline 20 is provided with a third two-way valve 31, the fifth pipeline 24 is provided with a fourth two-way valve 32, the second pipeline 19 is provided with a fifth two-way valve 94, the third pipeline 20 is provided with an air intake pipe 33, the air intake pipe 33 is provided with a sixth two-way valve 34, and the recovery liquid discharge pipe 23 is provided with a seventh two-way valve 35. Among them, the three-way valve is a pneumatic three-way actuator valve or an electric three-way actuator valve, and the two-way valve is a pneumatic two-way actuator valve or an electric two-way actuator valve. In this embodiment, when the three-way valve is not powered, its ab port is connected; when the three-way valve is powered, its ac port is connected; when the two-way valve is not powered, it is in a closed state, and when the two-way valve is powered, it is in an open state; the control valve is closed when power is lost and opened when power is gained.

[0046] Specifically, Figure 1As shown, port a of the first three-way valve 26 is connected to the liquid inlet of the delivery pump 18, port b of the first three-way valve 26 is connected to the raw liquid inlet 16, and port c of the first three-way valve 26 is connected to the cleaning water inlet 17, and the switching supply between the raw liquid and the pure cleaning water is realized through the first three-way valve 26. The delivery pump 18 is the power source for the entire liquid flow. The a port of the second three-way valve 27 is connected to the liquid outlet of the delivery pump 18, the b port of the second three-way valve 27 is connected to the a port of the third three-way valve 28, the c port of the second three-way valve 27 is connected to the third pipeline 20 through the seventh pipeline, and the connection point between the seventh pipeline and the third pipeline 20 is point r; the b port of the third three-way valve 28 is connected to the first interface 8 and the connection point is point g, the c port of the third three-way valve 28 is connected to the cleaning injection pipe 5 and the connection point is point i, and the vertex of the cleaning injection pipe 5 is point t; the connection point between the recovery liquid discharge pipe 23 and the main pipeline 4 is point d; the connection point between the filtrate discharge pipe 22 and the main pipeline 4 is point e; the connection point between the main pipeline 4 and the filtrate axis 3 (specifically the filtrate connecting pipe 50 described below) is point f; the exhaust liquid pipe 7 and the third pipeline The connection point of the air intake pipe 33 and the third pipe 20 is point h; the air intake end of the air intake pipe 33 is point l, the connection point of the air intake pipe 33 and the third pipe 20 is point k, the connection point of the fifth pipe 24 and the third pipe 20 is point m, and point k is between point h and point m; the connection point of the fifth pipe 24 and the fifth interface 14 is point n; the connection point of the third pipe 20 and the second interface 11 is point o, and point m is between point k and point o; the connection point of the second pipe 19 and the third interface 12 is point p, and the connection point of the second pipe 19 and the first pipe 15 is point s, and point s is located between the delivery pump 18 and the first three-way valve 26; the connection point of the fourth pipe 21 and the fourth interface 13 is point q; the connection point of the fourth pipe 21 and the main pipe 4 is point e; point d is between point f and point e.

[0047] like Figure 1 As shown, the main pipeline 4 is provided with a turbidity sensor 36, which is between point f and point d and is used to determine whether the filtrate meets the standard; the fourth pipeline 21 is provided with a first lighted sight glass 37 for observing the solution in the pipe, and the filtrate discharge pipe 22 is provided with a second lighted sight glass 38 and a flow meter 39 for observing the solution in the pipe and the discharge volume; the main filtering container 1 is provided with a glass sight glass 40 and an explosion-proof sight light 95 for observing the situation in the main filtering container 1; the third pipeline 20 is provided with a pressure gauge 41, and the main filtering container 1 is provided with a pressure gauge for determining the pressure conditions in the pipe and the main filtering container 1.

[0048] In this embodiment, a first liquid level sensor 42 is provided at the bottom of the main filtering container 1, and a second liquid level sensor 43 is provided at the top of the main filtering container 1, which are respectively a low liquid level sensor and a high liquid level sensor. A third liquid level sensor 44 is provided at the bottom of the main circulating container 2, a fourth liquid level sensor 45 is provided at the top of the main circulating container 2, and a fifth liquid level sensor 46 is provided at the middle, which are respectively a low liquid level sensor, a high liquid level sensor and a pulse liquid level sensor; a sixth liquid level sensor 47 is provided on the raw liquid inlet 16 to detect whether the raw liquid is passed in.

[0049] like Figure 2 As shown, in this embodiment, the filtrate shaft 3 is rotatably arranged and synchronously drives the filter disc 6 to rotate, so that it is convenient to cooperate with the cleaning injection pipe 5 to clean the filter disc 6. Specifically, a transmission shaft seat 48 is sealed in the bottom opening of the main filter container 1, and the transmission shaft seat 48 is sealed with the bottom opening of the main filter container 1 through a main shaft seat seal 56. A transmission main shaft 49 is sealed and rotatably arranged in the transmission shaft seat 48, and the upper end of the transmission main shaft 49 is rotatably arranged through an upper bearing 57, and the lower end of the transmission main shaft 49 is rotatably arranged through a lower bearing 58. An upper skeleton oil seal 59 and an upper oil seal pressure ring 60 are arranged between the upper end of the transmission main shaft 49 and the transmission shaft seat 48, which are used to achieve a sealed connection between the transmission main shaft 49 and the transmission shaft seat 48. Among them, the transmission main shaft 49 is a hollow shaft, and one end of the transmission main shaft 49 is sealed and docked with one end of the filtrate shaft 3. The docking surface of the transmission main shaft 49 and the filtrate shaft 3 is set as a hoop structure and a filter shaft sealing ring 61 is arranged between the two, and they are fastened by a number of bolts to achieve sealed docking. The other end of the transmission main shaft 49 is rotatably provided with a filtrate coupling pipe 50, which is located outside the main filter container 1 and connected to the main pipeline 4. The other end of the filtrate shaft 3 is provided with a locking sleeve 51, and a locking nut 62 is threadedly connected to the filtrate shaft 3. The locking nut 62 presses against the locking sleeve 51, and the locking sleeve 51 is used to press and lock multiple superimposed filter discs 6, so that each filter disc 6 is sealed, so that the filtrate diameter enters the filtrate shaft 3 through the liquid outlet hole 73 on the filter disc 6. The locking sleeve 51 is rotatably connected to the top of the main filter container 1 through the self-aligning bearing 52. Specifically, the self-aligning bearing 52 is arranged on the locking sleeve 51, and a thickening block is arranged at the top center of the main filtering container 1, and a through hole is arranged at the center of the thickening block, through which a self-aligning shaft 63 is arranged, and the self-aligning shaft 63 is sealed and installed on the thickening block of the main filtering container 1 through a seal 64 and a fastener 65, and the self-aligning shaft 63 is plugged with the inner ring of the self-aligning bearing 52 to play a positioning role in the rotation of the filtrate shaft 3, and the fastener 63 is a screw, and the thickening block is arranged to increase the tightening depth of the screw to ensure the firmness of the installation. The self-aligning bearing 52 and the self-aligning shaft 63 cooperate with the transmission main shaft 49 to ensure the smooth rotation of the filtrate shaft 3.

[0050] In this embodiment, the rotation of the filtrate shaft 3 is achieved by driving the transmission main shaft 49 through the driving assembly. Specifically, the transmission main shaft 49 is connected to the driving assembly for driving it to rotate, and the driving assembly is located outside the bottom end of the main filter container 1. The driving assembly includes a pulley 53, a transmission belt 54 and a cleaning motor 55. Among them, the pulley 53 is fixedly connected to the lower end of the transmission main shaft 49, and the filtrate connecting pipe 50 is rotatably arranged at the center of the pulley 53 through a needle bearing and a nut, and one end of the filtrate connecting pipe 50 is plugged with the transmission main shaft 49 and rotatably sealed and connected through multiple sealing rings. The transmission belt 54 is used to connect the pulley 53 and the cleaning motor 55. When the cleaning motor 55 is working, the pulley 53 is driven to rotate through the transmission belt 54, thereby driving the transmission main shaft 49 to rotate. When the transmission main shaft 49 rotates, the filtrate shaft 3 is synchronously driven to rotate to realize the rotation of the filter disc 6. When the pulley 53 rotates, the filtrate connecting pipe 50 is relatively still, so as to keep the main pipeline 4 in a stationary state, thereby not affecting the rotation of the transmission main shaft 49 and the flow of the liquid in the pipe.

[0051] In this embodiment, a sewage outlet 66 is provided at the bottom of the main filtering container 1, and the sewage outlet 66 is connected to a sewage pipe 67, and an eighth two-way valve 68 is provided on the sewage pipe 67. The connection point between the sewage pipe 67 and the sewage outlet 66 is point j.

[0052] like Figure 2 As shown, in this embodiment, the main filtering container 1 includes an upper container and a lower container which are separately arranged, a main container sealing ring 96 is provided at the docking surface of the upper container and the lower container, and a locking component 97 for tightly docking the upper container and the lower container is provided on the outer wall of the docking point of the upper container and the lower container, so that it is convenient to remove the upper container from the lower container for assembly or replacement of the filter disc.

[0053] like Figure 3 As shown, the fifth interface 14 is connected to the secondary chamber 10 through the additive liquid spray pipe 84, the bottom of the secondary chamber 10 is provided with an outlet hole 85, and the additive liquid spray pipe 84 is provided with a dredging thin tube 86 extending into the outlet hole 85 to prevent the coarse diatomite from clogging; the top of the circulating main container 2 is respectively provided with a main cover 87 and a secondary cover 88 for opening and closing the main chamber 9 and the secondary chamber 10, which are used to add diatomite. The bottom of the circulating main container 2 is provided with a circulating liquid outlet pipe 89 and a circulating liquid inlet pipe 90, the circulating liquid outlet pipe 89 is connected to the third interface 12, and the circulating liquid inlet pipe 90 is connected to the fourth interface 13, wherein the additive liquid spray pipe 84, the circulating liquid outlet pipe 89 and the circulating liquid inlet pipe 90 all adopt a lateral water outlet or water inlet method, which can effectively prevent clogging.

[0054] like Figure 4-10As shown, in this embodiment, the filter disc 6 includes: a liner 69, a base 70, a first filter screen 71 and a second filter screen 72. The liner 69, the base 70, the first filter screen 71 and the second filter screen 72 are all provided with a central hole, and the base 70 and the liner 69 are fixedly connected and used to be sleeved on the filtrate shaft 3. Among them, the liner 69 is sealed and arranged at the center of the base 70, and a circle of liquid outlet holes 73 are arranged on the side wall of the liner 69 at intervals, and the liquid outlet holes 73 are used to align the through holes on the filtrate shaft 3. The upper surface of the base 70 is provided with a plurality of convex ribs 74, which are arc-shaped strips and are arranged around the center array; a filtrate flow channel is formed between two adjacent convex ribs 74, and the lower end of the filtrate flow channel is connected to the liquid outlet hole 73. The first filter screen 71 is installed on the chassis 70 and supported by a number of ribs 74 to ensure that the first filter screen 71 will not be deformed; the second filter screen 72 is installed on the first filter screen 71, and the second filter screen is fixed with the lining ring 69 by welding, and the filter hole diameter of the second filter screen 72 is smaller than the filter hole diameter of the first filter screen 71; the filter hole diameter of the first filter screen 71 is small, and is used to form a diatomaceous earth filter layer; the first filter screen 71 is placed flat on the second filter screen 72 to ensure that it will not be deformed and ensure the filtering effect; the first filter screen 71 and the ribs 74 cooperate with each other, which can effectively reduce the thickness and weight of the second filter screen 72; the filter hole diameter of the first filter screen 71 is large, which can reduce its own weight. After the wine source liquid is filtered through the filter layer on the second filter screen 72, it passes through the first filter screen 71 and then falls onto the chassis 70, and then flows into the filtrate shaft 3 through the outlet hole 73 after being collected through the filtrate flow channel, completing the filtering work.

[0055] In this embodiment, the bottom plate 70 includes an inner concave horizontal surface 75 extending radially from the inside to the outside, an inclined bottom surface 76, a first platform 77, a second platform 78 and a pressed folded edge 79; the center position of the bottom plate 70 is lower than the outer edge position, and the purpose of this arrangement is to gather the filtrate to the center; at the same time, this arrangement is also to facilitate when multiple filter plates 6 are superimposed on the filtrate axis 3, there is a certain distance between two adjacent filter plates 6, so as to filter the wine. The concave horizontal surface 75 is used to seal the bottom surface of the installation bushing 69. The upper outer ring of the bushing 69 is provided with a third platform 80. The first platform 77 and the third platform 80 are on the same horizontal plane. The first filter screen 71 is placed on the third platform 80 and the first platform 77. The height difference between the first platform 77 and the second platform 78 is equal to the height of the first filter screen 71, that is, the upper surface of the first filter screen 71 and the second platform 78 are on the same horizontal plane. The second filter screen 72 is placed on the second filter screen 72 and the second platform 78. The pressed folded edge 79 is formed by the outer edge of the chassis 70 bending upward and inward. The pressed folded edge 79 presses against the edge of the second filter screen 72 to fix the second filter screen 72.

[0056] In this embodiment, a convex ring 81 is provided on the concave horizontal surface 75, and the cross-section of the convex ring 81 is semicircular or arc-shaped. The bottom surface of the liner 69 is provided with a concave ring 82 that is compatible with the convex ring 81; the convex ring 81 and the concave ring 82 are used to cooperate to achieve a sealed connection between the bottom surface of the liner 69 and the chassis 70, and the liner 69 and the chassis 70 are welded and sealed or adhesively sealed.

[0057] The upper surface of the liner 69 is provided with a pressing sealing ring 83, and the upper surface of the pressing sealing ring 83 is provided with an arc-shaped protrusion, which is used to achieve a sealed assembly when pressed against the concave ring 82 on the filter plate 6 superimposed above, thereby achieving a sealed assembly between the upper and lower filter plates 6, the purpose of which is to ensure that the filtrate can only enter the filtrate shaft 3 through the liquid outlet 73 after being filtered by the second filter screen 72.

[0058] In this embodiment, the filter hole diameter of the first filter screen 71 is 4-5 mm. The filter hole diameter of the second filter screen 72 is 20-25 μm. The material of the lining ring 69 is made of stainless steel. The chassis 70, the first filter screen 71, and the second filter screen 72 are all made of stainless steel, and the stainless steel is 304 or 316.

[0059] like Figure 1 As shown, this embodiment also provides a method for using a diatomaceous earth vertical filter. The method is implemented based on the above-mentioned diatomaceous earth vertical filter, and the method includes the following steps:

[0060] S1, start-up preparation: place weighed coarse and fine mixed diatomaceous earth in the main chamber 9 of the circulation main container 2, and place weighed coarse diatomaceous earth in the auxiliary chamber 10;

[0061] S2, liquid inlet: the stock liquid enters the main filter container 1 through the stock liquid inlet 16 and the first pipeline 15. After the main filter container 1 is filled with the stock liquid, the stock liquid enters the circulation main container 2 through the exhaust liquid pipe 7 and the third pipeline 20. The stock liquid supply is stopped after the stock liquid in the circulation main container 2 reaches a predetermined height; the delivery pump 18 on the first pipeline 15 is used to provide power for the circulation of the liquid;

[0062] S3, circulation to form a filter layer: the raw liquid mixed with coarse and fine mixed diatomaceous earth enters the filtering main container 1 through the second pipe 19 and the first pipe 15, and the raw liquid in the filtering main container 1 flows through the filter disc 6, the filtrate shaft 3, the main pipe 4, and the fourth pipe 21 to the main cavity 9 of the circulation main container 2, and circulates until the turbidity of the filtrate after filtering by the filter disc 6 meets the standard; wherein, when the raw liquid passes through the filter disc 6, a diatomaceous earth filter layer is formed on the upper surface of the filter disc 6;

[0063] S4, filtering the raw liquid: the raw liquid is introduced into the filtering main container 1 through the raw liquid inlet 16 and the first pipeline 15, and after being filtered by the filter disc 6, the filtrate is discharged through the filtrate shaft 3, the main pipeline 4 and the filtrate discharge pipe 22 until the raw liquid inlet 16 is short of liquid and the machine is automatically shut down, which means that the entire filter stops working without power outage;

[0064] During the filtering process, the raw liquid in the main filtering container 1 enters the auxiliary chamber 10 through the exhaust liquid pipe 7, the third pipe 20, and the fifth pipe 24, so that the crude diatomaceous earth is mixed in the raw liquid, and then flows back to the main filtering container 1 through the second pipe 19 and the first pipe 15. The raw liquid mixed with the crude diatomaceous earth flows in a pulsed circulation to supplement the filter disc 6 with the crude diatomaceous earth.

[0065] S5, collecting liquid: the original liquid retained in the circulation main container 2 enters the filtering main container 1 through the second pipeline 19 and the first pipeline 15, and the original liquid in the filtering main container 1 is directly recovered through the main pipeline 4 and the recovery liquid discharge pipe 23;

[0066] S6, cleaning: pure cleaning water enters the filtering main container 1 through the cleaning water inlet 17 and the first pipe 15, and then enters the circulating main container 2 through the exhaust liquid pipe 7, the third pipe 20 and the fifth pipe 24. After the cleaning is completed, the cleaning water is discharged;

[0067] Then, the pure washing water is passed through the washing water inlet 17, the first pipe 15 and the sixth pipe 25 into the washing spray pipe 5 to spray and rinse the filter 6, and the washing water is discharged synchronously until the rinsing time is completed;

[0068] S7, drying the main filter container 1: pure compressed air enters the main filter container 1 through the exhaust liquid pipe 7 to air-dry the interior of the main filter container 1.

[0069] Specifically, in step S2, the delivery pump 18 and the third two-way valve 31 are energized. When the raw liquid enters the filtering main container 1 through the raw liquid inlet 16 and the first pipeline 15, the operating frequency of the delivery pump 18 is 40Hz; when the liquid level in the filtering main container 1 reaches the top of the exhaust liquid pipe 5, the operating frequency of the delivery pump 18 is 25Hz; when the liquid level height in the circulating main container 2 reaches the fourth sensor position, the liquid intake is stopped.

[0070] Please refer to Figure 1The letter nodes in the figure, wherein the process node of step S2 is: the raw liquid enters from the second control valve 92, passes through the sixth liquid level sensor 47, the ba port of the first three-way valve 26, the delivery pump 18, the ab port of the second three-way valve 27, the ab port of the third three-way valve 28, and the point g, and enters the filtering main container 1; after the liquid level of the filtering main container 1 rises to the top, it passes through the points t, h, the pressure gauge 41, k, m, the third two-way valve 31, and the point o, and enters the circulating main container 2; and stops when the liquid level reaches the position of the fourth liquid level sensor 45.

[0071] Specifically, in step S3, 10S after the liquid intake is completed, the fifth two-way valve 94, the delivery pump 18, and the first two-way valve 29 are energized; the operating frequency of the delivery pump 18 is 45Hz. When the turbidity sensor 36 detects that it meets the standard, the first two-way valve 29 and the fifth two-way valve 94 are de-energized. At the same time, the first control valve 91 and the second two-way valve 30 on the filtrate discharge pipe 22 are energized, and the second control valve 92 on the raw liquid inlet 16 is energized, and the program automatically enters step S4 for filtration.

[0072] Please refer to Figure 1 The letter nodes in step S3 are as follows: the mixed stock solution mixed with coarse and fine mixed diatomaceous earth enters the filtering main container 1 through point p, the fifth two-way valve 94, point s, the delivery pump 18, the ab port of the second three-way valve 27, the ab port of the third three-way valve 28, and point g; the stock solution in the filtering main container 1 flows back to the circulating main container 2 through the filter disc 6, the filtrate axis 3, point f, point e, the first two-way valve 29, the first lighted sight glass 37, and point q.

[0073] Specifically, in step S4, the second two-way valve 30 is energized; the fourth two-way valve 32 and the fifth two-way valve 94 are energized in a pulsed manner, where the pulsed energization means that the fourth two-way valve 32 and the fifth two-way valve 94 are energized and de-energized alternately according to a certain time period; wherein, in the pulsed replenishment of the crude diatomite circulation process, when the liquid level in the circulation main container 2 is lower than the fifth liquid level sensor 46, the third two-way valve 31 is automatically opened, and when the liquid level in the circulation main container 2 rises to the fourth liquid level sensor 45, the third two-way valve 31 is automatically closed; the fifth liquid level sensor 46 is flush with the lower end of the auxiliary chamber 10; when the pressure detected by the pressure gauge 41 reaches the set value, the filtration is stopped. During the filtration process, if the sixth liquid level sensor 47 detects that no raw liquid is introduced, the machine will automatically stop.

[0074] Please refer to Figure 1The letter nodes in the figure, wherein the process node of step S4 is: the raw liquid enters through the second control valve 92, and enters the main filtering container 1 through the sixth liquid level sensor 47, the ab port of the first three-way valve 26, the delivery pump 18, the ab port of the second three-way valve 27, the ab port of the third three-way valve 28, and the g point; the raw liquid in the main filtering container 1 passes through the filter disc 6, the filtrate axis 3, the f point, the turbidity sensor 36, the e point, the second two-way valve 30, the second lighted sight glass 38, the flow meter 39, and the first control valve 91.

[0075] When pulse-type supplementation of crude diatomaceous earth is performed, the process nodes are as follows: the raw liquid in the main filtering container 1 enters the auxiliary chamber 10 via point t, point h, pressure gauge 41, point k, point m, fourth two-way valve 32, and point n, the crude diatomaceous earth in the auxiliary chamber 10 is mixed with the raw liquid, the raw liquid mixed with the crude diatomaceous earth enters the main filtering container 1 via point p, fifth two-way valve 94, point s, delivery pump 18, ab port of second three-way valve 27, ab port of third three-way valve 28, and point g, after the raw liquid enters the main filtering container 1, the crude diatomaceous earth mixed in the raw liquid falls on the filter disc 6 to maintain the evacuation state of the filter layer.

[0076] Specifically, in step S5, 10S after the filtration is completed, the fifth two-way valve 94, the delivery pump 18, and the seventh two-way valve 35 are energized; the operating frequency of the delivery pump 18 is 30Hz; when the liquid level in the circulation main container 2 is lower than the third liquid level sensor 44, the fifth two-way valve 94 is closed and the sixth two-way valve 34 is opened; pressurized pure air is introduced into the filtration main container 1 through the air inlet pipe 33, the third pipeline 20 and the exhaust liquid pipe 7, so that the original liquid in the filtration main container 1 is discharged through the main pipeline 4, the seventh two-way valve 35, and the recovery liquid discharge pipe 23; when the liquid level in the filtration main container 1 is lower than the first liquid level sensor 42, the sixth two-way valve 34 and the seventh two-way valve 35 are closed, and the liquid collection is completed.

[0077] Please refer to Figure 1 The letter nodes in step S5 are divided into two processes, one is the collection of the original liquid in the filtering main container 1, and the other is the collection of the residual liquid in the circulating main container 2; wherein, the process node of the original liquid in the circulating main container 2 is: the original liquid enters the filtering main container 1 through point p, the fifth two-way valve 94, point s, the delivery pump 18, the ab port of the second three-way valve 27, the ab port of the third three-way valve 28, and point g, and the original liquid in the filtering main container 1 is recovered through the filter disc 6, the filtrate axis 3, point f, the turbidity sensor 36, point d, and the seventh two-way valve 35; wherein, the process node of collecting the residual liquid in the filtering main container 1 is: pure air enters the filtering main container 1 through point l, the sixth two-way valve 34, point k, the pressure gauge 41, point h, and point t, and under the pressure of the air, the residual liquid in the filtering main container 1 is recovered through the filter disc 6, the filtrate axis 3, point f, point d, and the seventh two-way valve 35.

[0078] Specifically, step S6 includes the following steps:

[0079] S61, the first three-way valve 26, the delivery pump 18, the third two-way valve 31, and the fourth two-way valve 32 are energized;

[0080] When the liquid level in the filtering main container 1 reaches the second liquid level sensor 43, the operating frequency of the delivery pump 18 is reduced from 45Hz to 25Hz; when the liquid level in the circulating main container 2 reaches the fourth liquid level sensor 45, the supply of pure cleaning water is stopped, and the delivery pump 18 is turned off. At the same time, the cleaning motor 55 of the drive component is energized to drive the filtrate shaft 3 and the filter disc 6 thereon to rotate forward and reverse, so that the diatomaceous earth filter layer on the filter disc 6 gradually separates from the filter disc 6; wherein, the process nodes of step S61 are: the pure cleaning water passes through the third control valve 93, the ca port of the first three-way valve 26, the delivery pump 18, the ab port of the second three-way valve 27, the ab port of the third three-way valve 28, point g, the filtering main container 1, point t, point h, the pressure gauge 41, point k, point m, and is simultaneously diverted through the third two-way valve 31, point o; and the fourth two-way valve 32, point n into the circulating main container 2, and stops after the liquid level reaches the height of the fourth liquid level sensor 45.

[0081] S62, after the cleaning time is reached, the sixth two-way valve 34 and the eighth two-way valve 68 are energized; pressurized pure air is introduced through the sixth two-way valve 34 and the air inlet pipe 33, and the cleaning liquid in the main filter container 1 is discharged through the drain port 66, the eighth two-way valve 68 and the drain pipe 67. When the liquid level in the main filter container 1 is lower than the first liquid level sensor 42, the sixth two-way valve 34 is closed; wherein, step S62 is mainly used to discharge the cleaning water mixture in the main filter container 1, and its process nodes are: pure compressed air is discharged through point l, the sixth two-way valve 34, point k, the pressure gauge 41, point h, point t, the main filter container 1, point j, and the eighth two-way valve 68.

[0082] S63, the fifth two-way valve 94 is energized; the delivery pump 18 works, and the cleaning liquid in the circulating main container 2 flows into the first pipe 15 through the second pipe 19 and the fifth two-way valve 94, and enters the bottom of the filtering main container 1 through the first interface 8, and is finally discharged through the eighth two-way valve 68 and the drain pipe 67. When the liquid level in the circulating main container 2 is lower than the third liquid level sensor 44, the delivery pump 18 is closed, and after 10S, the eighth two-way valve 68 is closed; wherein, step S63 is mainly used to discharge the cleaning water mixture in the circulating main container 2, and its process nodes are: circulating main container 2, point p, fifth two-way valve 94, point s, delivery pump 18, ab port of the second three-way valve 27, ab port of the third three-way valve 28, point g, filtering main container 1, point j, and discharge from the eighth two-way valve 68.

[0083] S64, the third three-way valve 28 is energized, and the pure cleaning water enters the cleaning spray pipe 5 through the first three-way valve 26, the second three-way valve 27, the third three-way valve 28 and the sixth pipeline 25. The cleaning motor 55 then synchronously drives the filtrate shaft 3 and the filter disc 6 to rotate; the cleaning water is then discharged through the eighth two-way valve 68 and the sewage pipe 67. When the cleaning time is reached, the delivery pump 18 and the third control valve 93 are closed to stop supplying pure cleaning water; the cleaning motor 55 continues to work for 3-10 minutes, so that The filter disc 6 is spun off, and finally the cleaning motor 55 and the eighth two-way valve 68 are closed; wherein, step S64 is mainly used to perform secondary cleaning on the filter disc 6 of the filtering main container 1 to prevent the filter disc 6 from being blocked, and its process nodes are: pure cleaning water is ejected through the third control valve 93, the ca port of the first three-way valve 26, the delivery pump 18, the ab port of the second three-way valve 27, the ac port of the third three-way valve 28, the i point, the cleaning injection pipe 5, the filter disc 6, the j point, and the eighth two-way valve 68.

[0084] Specifically, in step S7, the sixth two-way valve 34 and the cleaning motor 55 are powered; pure compressed air enters the main filter container 1 through the air inlet pipe 33, the sixth two-way valve 34, the third pipeline 20, and the exhaust liquid pipe 7; the cleaning motor 55 drives the filtrate shaft 3 and the filter disc 6 to rotate forward and reverse; step S7 mainly air-dries the filter disc 6, and its process nodes are: pure compressed air passes through point l, the sixth two-way valve 34, point k, the pressure gauge 41, point h, point t, the main filter container 1, the filter disc 6, point j, and the eighth two-way valve 68.

[0085] Among them, after pure compressed air is introduced for 20-30S, the eighth two-way valve 68 is opened; the working state of the cleaning motor 55 is forward rotation for 60S-stop for 60S-and then reverse rotation for 60S, which are staggered, and the working time of the cleaning motor 55 is 15-30min; when the air-drying time is reached, the cleaning motor 55 and the sixth two-way valve 34 are closed, and after 20S, the eighth two-way valve 68 is closed, and the air-drying is completed.

[0086] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A diatomaceous earth vertical filter, characterized in that: include: A filtering main container (1) and a circulating main container (2); A hollow filtrate shaft (3) is provided on the central axis of the main filtration container (1), and one end of the filtrate shaft (3) is connected to a main pipeline (4) provided at the bottom end of the main filtration container (1); a cleaning spray pipe (5) is provided in the main filtration container (1); A filter sheet (6) is superimposed on the filtrate shaft (3) and is in communication with the interior of the filtrate shaft (3); a gas exhaust pipe (7) is provided in the main filter container (1), one end of the gas exhaust pipe (7) extends to the inner top of the main filter container (1), and the other end extends to the bottom of the main filter container (1) and protrudes out; The bottom of the main filtering container (1) is also provided with a first interface (8); The main circulation container (2) is provided with a main chamber (9) and a secondary chamber (10) which are interconnected, and coarse diatomaceous earth is placed in the secondary chamber (10); The main circulation container (2) is provided with a second interface (11), a third interface (12), a fourth interface (13) and a fifth interface (14); the fifth interface (14) is communicated with the auxiliary chamber (10); The first interface (8) is connected to the raw liquid inlet (16) and the cleaning water inlet (17) through a first pipeline (15), and a delivery pump (18) is provided on the first pipeline (15); the third interface (12) is connected to the first pipeline (15) through a second pipeline (19); the exhaust liquid pipe (7) and the second interface (11) are connected through a third pipeline (20); the main pipeline (4) is connected to the fourth interface (13) through a fourth pipeline (21), and a filtrate discharge pipe (22) and a recovery liquid discharge pipe (23) are also provided on the main pipeline (4); the fifth interface (14) is connected to the third pipeline (20) through a fifth pipeline (24); and the cleaning spray pipe (5) is connected to the first pipeline (15) through a sixth pipeline (25).

2. The diatomaceous earth vertical filter according to claim 1, characterized in that: The first pipeline (15) is provided with a first three-way valve (26), a second three-way valve (27) and a third three-way valve (28); the first three-way valve (26) is connected to the raw liquid inlet (16) and the cleaning water inlet (17); the second three-way valve (27) is respectively connected to the delivery pump (18), the third three-way valve (28) and the second pipeline (19); the third three-way valve (28) is also respectively connected to the first interface (8) and the sixth pipeline (25).

3. The diatomaceous earth vertical filter according to claim 2, characterized in that: The fourth pipeline (21) is provided with a first two-way valve (29), the filtrate discharge pipe (22) is provided with a second two-way valve (30), the third pipeline (20) is provided with a third two-way valve (31), the fifth pipeline (24) is provided with a fourth two-way valve (32), the second pipeline (19) is provided with a fifth two-way valve (94), the third pipeline (20) is provided with an air intake pipe (33), the air intake pipe (33) is provided with a sixth two-way valve (34), and the recovery liquid discharge pipe (23) is provided with a seventh two-way valve (35).

4. The diatomaceous earth vertical filter according to claim 3, characterized in that: The main pipeline (4) is provided with a turbidity sensor (36), the fourth pipeline (21) is provided with a first lighted sight glass (37), the filtrate discharge pipe (22) is provided with a second lighted sight glass (38) and a flow meter (39); the main filtering container (1) is provided with a glass sight glass (40), and the third pipeline (20) is provided with a pressure gauge (41).

5. The diatomaceous earth vertical filter according to claim 4, characterized in that: A first liquid level sensor (42) is provided at the bottom of the filtering main container (1), a second liquid level sensor (43) is provided at the top of the filtering main container (1), a third liquid level sensor (44) is provided at the bottom of the circulating main container (2), a fourth liquid level sensor (45) is provided at the top of the circulating main container (2), and a fifth liquid level sensor (46) is provided at the middle; and a sixth liquid level sensor (47) is provided on the raw liquid inlet (16).

6. The diatomaceous earth vertical filter according to any one of claims 1 to 5, characterized in that: A transmission shaft seat (48) is sealed in the bottom opening of the main filtering container (1), and a transmission main shaft (49) is sealed and rotatably provided in the transmission shaft seat (48). The transmission main shaft (49) is a hollow shaft, one end of the transmission main shaft (49) is sealedly connected to one end of the filtrate shaft (3), and the other end is rotatably provided with a filtrate connecting pipe (50), and the filtrate connecting pipe (50) is connected to the main pipeline (4); the other end of the filtrate shaft (3) is provided with a locking sleeve (51), and the locking sleeve (51) is rotatably connected to the top of the main filtering container (1) through a self-aligning bearing (52).

7. The diatomaceous earth vertical filter according to claim 6, characterized in that: The transmission main shaft (49) is drivingly connected to a driving assembly for driving it to rotate.

8. The diatomaceous earth vertical filter according to claim 7, characterized in that: The bottom of the main filtering container (1) is provided with a sewage outlet (66), the sewage outlet (66) is connected to a sewage pipe (67), and the sewage pipe (67) is provided with an eighth two-way valve (68).

9. The diatomaceous earth vertical filter according to claim 7, characterized in that: The filter plate (6) comprises: a liner (69), a base (70), a first filter screen (71) and a second filter screen (72); the liner (69) is sealingly arranged at the center of the base (70); a plurality of liquid outlet holes (73) are arranged at intervals on the side wall of the liner (69); a plurality of convex ribs (74) are arranged on the upper surface of the base (70); a filtrate flow channel is formed between adjacent convex ribs (74); the filtrate flow channel is connected to the liquid outlet hole (73); the first filter screen (71) is mounted on the base (70) and supported by the plurality of convex ribs (74); the second filter screen (72) is mounted on the first filter screen (71); the filter hole diameter of the second filter screen (72) is smaller than the filter hole diameter of the first filter screen (71).

10. The diatomaceous earth vertical filter according to claim 9, characterized in that: The fifth interface (14) is connected to the auxiliary chamber (10) via an additive liquid spray pipe (84); an outlet hole (85) is provided at the bottom of the auxiliary chamber (10); and a dredging capillary (86) extending into the outlet hole (85) is provided on the additive liquid spray pipe (84); and a main cover (87) and an auxiliary cover (88) for opening and closing the main chamber (9) and the auxiliary chamber (10) are provided at the top of the main circulation container (2).

Images