Industrial vacuum filtration system and method of use

Abstract

This invention discloses an industrial vacuum filtration system and its usage method in the field of solid-liquid separation technology. The system includes a vacuum mechanism comprising a housing, a circulating water assembly installed within the inner cavity of the housing, a vacuum chamber assembly disposed within the inner cavity of the housing, and a vacuum pumping component disposed on top of the housing assembly and connected to both the circulating water assembly and the vacuum chamber assembly. The circulating water assembly includes a circulating pump disposed at the bottom of the inner cavity of the housing. This invention utilizes the Venturi tube principle to create a vacuum within the vacuum chamber, resulting in a negative pressure state within the chamber. During the filtration process driven by this negative pressure, the venturi tube ensures the stability of the vacuum process, thereby enabling stable filtration of the liquid and preventing damage to the equipment caused by the impact force generated during intermittent water flow.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of solid-liquid separation, in particular to an industrial solid-liquid separation vacuum filtration system. BACKGROUND

[0002] In the environmental governance industry, the solid-liquid separation process of a solution is often involved, especially in the process of treating wastewater by using physical, chemical and biological methods, whether the filtration of particulate pollutants or the collection of solid products cannot do without solid-liquid separation.

[0003] The existing water treatment generally uses a vacuum filtration method to treat wastewater. The vacuum filtration is a method for accelerating water filtration by using negative pressure caused by air extraction. The existing vacuum filtration generally connects a vacuum pump to a vacuum chamber, and the vacuum chamber is vacuumized by the vacuum pump. However, the vacuum degree of the vacuum pump during vacuumization is unstable, and water is discontinuous during filtration, and the inertia of water during the discontinuous process causes impact force. The impact force of water flow is easy to cause damage to equipment.

[0004] In addition, with the increasingly stringent requirements for environmental governance, high-temperature medium concentration or solid-liquid separation is required to achieve "zero discharge" of high-salt chemical wastewater, such as high-salt mother liquor from an evaporation tank and crystalline bodies from an MVR. In such a filtration system of high-temperature medium, if a piston type vacuum pump is used, the pump body is prone to aging; if an oil pump is used, not only is the oil consumption large, but also environmental pollution is easy to cause. SUMMARY

[0005] The purpose of the present application is to provide an industrial vacuum filtration system and a use method, so as to solve the problem of instability of the vacuum degree of the vacuum pump during vacuumization, which causes water to be discontinuous during filtration, and the inertia of water during the discontinuous process causes impact force, and the impact force of water flow is easy to cause damage to equipment, and at the same time, a more environmentally friendly water circulation vacuum system is adopted, which is more environmentally friendly.

[0006] To achieve the above purpose, the present application provides the following technical scheme: an industrial vacuum filtration system, comprising:

[0007] a vacuumizing mechanism, the vacuumizing mechanism comprising an outer shell, a circulating water assembly installed in an inner cavity of the outer shell, a vacuum chamber assembly arranged in the inner cavity of the outer shell, and a vacuumizing assembly arranged on the top of the outer shell assembly and connected with the circulating water assembly and the vacuum chamber assembly respectively;

[0008] the circulating water assembly comprises a circulating pump arranged at the bottom of the inner cavity of the outer shell, a first liquid conveying pipeline arranged at the liquid inlet end of the circulating pump and connected with a tap water pipeline through the side wall of the outer shell, and a second liquid conveying pipeline arranged on the liquid outlet end of the circulating pump;

[0009] The vacuum chamber assembly comprises a vacuum chamber arranged in the inner cavity of the outer shell and on the upper end of the circulating pump;

[0010] The vacuumizing assembly comprises an exhaust pipe arranged in the exhaust end of the top of the vacuum chamber and penetrating through the top of the outer shell, a check valve installed in the exhaust end of the exhaust pipe and arranged on the upper end of the outer shell, and a Venturi tube installed in the exhaust end of the check valve and connected with the liquid outlet end of the second liquid conveying pipe.

[0011] Preferably, the vacuum chamber assembly further comprises a first liquid inlet connecting port arranged in the liquid inlet end of the top of the vacuum chamber and penetrating through the top of the outer shell, and a liquid outlet valve installed in the liquid outlet end of the bottom of the vacuum chamber and penetrating through the lateral wall of the outer shell.

[0012] Preferably, the third liquid conveying pipe installed in the liquid inlet end of the first liquid inlet connecting port and arranged on the upper end of the outer shell is further included.

[0013] Preferably, the buffer tank assembly is further included, which comprises a buffer tank arranged on the lateral side of the outer shell, a top cover assembly coaxially installed on the top opening of the buffer tank and connected with the liquid inlet end of the third liquid conveying pipe, a partition plate arranged in the inner cavity of the buffer tank and connected with the top of the inner cavity of the top cover assembly, a spoiler plate arranged between the inner cavity of the buffer tank and the partition plate, and a filter plate arranged in another space between the inner cavity of the buffer tank and the partition plate.

[0014] The buffer tank comprises a tank body, a first liquid outlet connecting port arranged on the bottom of the tank body, and a first supporting leg arranged on the bottom of the lateral wall of the tank body.

[0015] The top cover assembly comprises a top cover installed on the top opening of the tank body, a second liquid inlet connecting port arranged on the top of the top cover and penetrating through the top of the inner cavity of the top cover and corresponding to the inner cavity of the tank body and the spoiler plate, and a second liquid outlet connecting port arranged on the top of the top cover and penetrating through the top of the inner cavity of the top cover and corresponding to the inner cavity of the tank body and the filter plate.

[0016] Preferably, the fourth liquid conveying pipe installed in the liquid inlet end of the second liquid inlet connecting port and arranged on the upper end of the top cover is further included.

[0017] Preferably, the filter cartridge assembly is further included, which comprises a filter cartridge arranged on the side of the tank body away from the outer shell, an end cover installed on the top opening of the filter cartridge, a filter mechanism coaxially installed in the inner cavity of the filter cartridge, and a liquid discharge pipe arranged on the liquid outlet end of the bottom of the filter cartridge.

[0018] The filter cartridge comprises a cartridge body, a third liquid discharge connection port arranged on the outer wall of the cartridge body and connected with the liquid inlet end of the fourth liquid inlet pipe, and a second supporting leg arranged at the bottom of the outer wall of the cartridge body.

[0019] The filter mechanism comprises a porous filter plate coaxially arranged in the inner cavity of the cartridge body and a filter cloth arranged in the groove at the top of the porous filter plate.

[0020] Preferably, the water quality detector is further arranged on the liquid discharge end of the second liquid discharge connection port through a pipe.

[0021] Preferably, the circulation mechanism is further arranged between the third liquid inlet pipe and the fourth liquid inlet pipe.

[0022] A use method of the industrial vacuum filtration system, comprising the following steps:

[0023] S1: placing the liquid into the inner cavity of the cartridge body, the liquid being in contact with the filter cloth, filtering and purifying the liquid through the filter cloth with a specific water permeability, and the filtered and purified water entering the bottom of the inner cavity of the cartridge body through the porous filter plate;

[0024] S2: when the inner cavity of the fourth liquid inlet pipe is in a negative pressure state, the filtered and purified water at the bottom of the inner cavity of the cartridge body enters the inner cavity of the fourth liquid inlet pipe through the third liquid discharge connection port, and is discharged into the inner cavity of the tank through the fourth liquid inlet pipe, the water discharged into the inner cavity of the tank being buffered into the bottom of the inner cavity of the tank through the baffle, the impact force of the water flow being reduced through the baffle, the water entering the space on the side of the inner cavity of the tank away from the baffle through the gap between the bottom of the inner cavity of the tank and the bottom of the partition plate, the water in the space on the side of the inner cavity of the tank away from the baffle being filtered and purified again through the filter plate until the water level exceeds the contact between the uppermost filter plate and the liquid inlet end of the second liquid discharge connection port;

[0025] S3: when the inner cavity of the third liquid inlet pipe is in a negative pressure state, the filtered and purified water in the inner cavity of the tank enters the inner cavity of the third liquid inlet pipe through the second liquid discharge connection port and enters the inner cavity of the vacuum chamber through the third liquid inlet pipe, the liquid discharge valve being opened, the water in the inner cavity of the vacuum chamber being discharged from the liquid discharge valve, and the inner cavity of the vacuum chamber being stably vacuumized.

[0026] Compared with the prior art, the industrial vacuum filtration system has the following beneficial effects: the vacuum chamber is vacuumized through the working principle of the Venturi tube, the inner cavity of the vacuum chamber is in a negative pressure state, the vacuumization through the Venturi tube can guarantee the stability of the vacuumization, the liquid can be stably filtered and purified, and the impact force caused by the intermittent water flow can be avoided to damage the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the vacuumizing mechanism of the present application;

[0028] Figure 2 is a structural schematic diagram of the vacuumizing mechanism of the present application;

[0029] Figure 3 is a structural schematic diagram of the buffer tank assembly of the present application;

[0030] Figure 4 is a structural schematic diagram of the filter cartridge assembly of the present application.

[0031] In the figure: 100 vacuumizing mechanism, 110 outer shell, 120 circulating water assembly, 121 circulating pump, 122 first liquid conveying pipeline, 123 second liquid conveying pipeline, 130 vacuum chamber assembly, 131 vacuum chamber, 132 first liquid inlet connecting port, 133 liquid discharging valve, 140 vacuumizing assembly, 141 exhaust pipeline, 142 check valve, 143 Venturi tube, 200 third liquid conveying pipeline, 300 buffer tank assembly, 310 buffer tank, 311 tank body, 312 first liquid discharging connecting port, 313 first supporting leg, 320 top cover assembly, 321 top cover, 322 second liquid inlet connecting port, 323 second liquid discharging connecting port, 330 partition plate, 340 spoiler plate, 350 filter plate, 400 fourth liquid conveying pipeline, 500 filter cartridge assembly, 510 filter cartridge, 511 cartridge body, 512 third liquid discharging connecting port, 513 second supporting leg, 520 end cover, 530 filtering mechanism, 531 porous filter plate, 532 filter cloth, 540 liquid discharging pipeline, 600 water quality detector, 700 circulating mechanism. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0033] The present application provides an industrial vacuum filtration system. The vacuum chamber is vacuumized by the working principle of the Venturi tube, so that the inner cavity of the vacuum chamber presents a negative pressure state. The vacuumization stability is guaranteed by vacuumizing through the Venturi tube, so that the material liquid can be stably vacuum-filtered, and the impact force caused by the intermittent water flow does not damage the equipment. Figure 1 , comprising: a vacuumizing mechanism 100, a third liquid conveying pipeline 200, a buffer tank assembly 300, a fourth liquid conveying pipeline 400 and a filter cartridge assembly 500.

[0034] Please refer to Figures 1-2, the vacuum-pumping mechanism 100 comprises an outer shell 110, a circulating water assembly 120 installed in the inner cavity of the outer shell 110, a vacuum chamber assembly 130 arranged in the inner cavity of the outer shell 110, and a vacuum-pumping assembly 140 arranged on the top of the outer shell assembly 110 and connected with the circulating water assembly 120 and the vacuum chamber assembly 130 respectively, the circulating water assembly 120 comprises a circulating pump 121 arranged at the bottom of the inner cavity of the outer shell 110, a first liquid conveying pipeline 122 arranged at the liquid inlet end of the circulating pump 121 and penetrating through the lateral wall of the outer shell 110 and connected with the tap water pipeline, and a second liquid conveying pipeline 123 arranged at the liquid outlet end of the circulating pump 121, the vacuum chamber assembly 130 comprises a vacuum chamber 131 arranged in the inner cavity of the outer shell 110 and arranged at the upper end of the circulating pump 121, and further comprises a first liquid inlet connecting port 132 arranged at the liquid inlet end of the top of the vacuum chamber 131 and penetrating through the top of the outer shell 110, and a liquid outlet valve 133 installed at the liquid outlet end of the bottom of the vacuum chamber 131 and penetrating through the lateral wall of the outer shell 110, the vacuum-pumping assembly 140 comprises an exhaust pipeline 141 arranged at the exhaust end of the top of the vacuum chamber 131 and penetrating through the top of the outer shell 110, a check valve 142 installed at the exhaust end of the exhaust pipeline 141 and arranged at the upper end of the outer shell 110, and a Venturi tube 143 installed at the exhaust end of the check valve 142 and connected with the liquid outlet end of the second liquid conveying pipeline 123, the tap water is pumped into the inner cavity of the second liquid conveying pipeline 123 by the circulating pump 121, the tap water enters the inner cavity of the Venturi tube 143 through the second liquid conveying pipeline 123, the inner cavity of the exhaust pipeline 141 is vacuumized through the working principle of the Venturi tube, the setting of the check valve 142 can prevent the water entering the inner cavity of the Venturi tube 143 from entering the inner cavity of the exhaust pipeline 141, the air in the inner cavity of the vacuum chamber 131 enters the inner cavity of the exhaust pipeline 141 and is discharged through the Venturi tube 143, so that the inner cavity of the vacuum chamber 131 presents a negative pressure state, and the vacuumization through the Venturi tube can guarantee the stability in the vacuumization process and stably vacuumize the inner cavity of the vacuum chamber 131;

[0035] Please refer to Figures 1-2 , the vacuum-pumping mechanism 100 comprises an outer shell 110, a circulating water assembly 120 installed in the inner cavity of the outer shell 110, a vacuum chamber assembly 130 arranged in the inner cavity of the outer shell 110, and a vacuum-pumping assembly 140 arranged on the top of the outer shell assembly 110 and connected with the circulating water assembly 120 and the vacuum chamber assembly 130 respectively, the circulating water assembly 120 comprises a circulating pump 121 arranged at the bottom of the inner cavity of the outer shell 110, a first liquid conveying pipeline 122 arranged at the liquid inlet end of the circulating pump 121 and penetrating through the lateral wall of the outer shell 110 and connected with the tap water pipeline, and a second liquid conveying pipeline 123 arranged at the liquid outlet end of the circulating pump 121, the vacuum chamber assembly 130 comprises a vacuum chamber 131 arranged in the inner cavity of the outer shell 110 and arranged at the upper end of the circulating pump 121, and further comprises a first liquid inlet connecting port 132 arranged at the liquid inlet end of the top of the vacuum chamber 131 and penetrating through the top of the outer shell 110, and a liquid outlet valve 133 installed at the liquid outlet end of the bottom of the vacuum chamber 131 and penetrating through the lateral wall of the outer shell 110, the vacuum-pumping assembly 140 comprises an exhaust pipeline 141 arranged at the exhaust end of the top of the vacuum chamber 131 and penetrating through the top of the outer shell 110, a check valve 142 installed at the exhaust end of the exhaust pipeline 141 and arranged at the upper end of the outer shell 110, and a Venturi tube 143 installed at the exhaust end of the check valve 142 and connected with the liquid outlet end of the second liquid conveying pipeline 123, the tap water is pumped into the inner cavity of the second liquid conveying pipeline 123 by the circulating pump 121, the tap water enters the inner cavity of the Venturi tube 143 through the second liquid conveying pipeline 123, the inner cavity of the exhaust pipeline 141 is vacuumized through the working principle of the Venturi tube, the setting of the check valve 142 can prevent the water entering the inner cavity of the Venturi tube 143 from entering the inner cavity of the exhaust pipeline 141, the air in the inner cavity of the vacuum chamber 131 enters the inner cavity of the exhaust pipeline 141 and is discharged through the Venturi tube 143, so that the inner cavity of the vacuum chamber 131 presents a negative pressure state, and the vacuumization through the Venturi tube can guarantee the stability in the vacuumization process and stably vacuumize the inner cavity of the vacuum chamber 131;

[0036] Please refer to Figures 1-3, the buffer tank assembly 300 comprises a buffer tank 310 arranged outside the outer shell 110, a top cover assembly 320 coaxially arranged on the top opening of the buffer tank 310 and connected with the liquid inlet end of the third infusion pipeline 200, a partition plate 330 arranged in the inner cavity of the buffer tank 310 and connected with the top of the inner cavity of the top cover assembly 320, a spoiler 340 arranged between the inner cavity of the buffer tank 310 and the partition plate 330, and a filter plate 350 arranged in another space between the inner cavity of the buffer tank 310 and the partition plate 330, the buffer tank 310 comprises a tank body 311, a first liquid outlet connecting port 312 arranged at the bottom of the tank body 311, and a first supporting leg 313 arranged at the bottom of the outer sidewall of the tank body 311, the top cover assembly 320 comprises a top cover 321 arranged on the top opening of the tank body 311, a second liquid inlet connecting port 322 arranged at the top of the top cover 321 and penetrating through the top of the inner cavity of the top cover 321 and corresponding to the spoiler 340, and a second liquid outlet connecting port 323 arranged at the top of the top cover 321 and penetrating through the top of the inner cavity of the top cover 321 and corresponding to the filter plate 350, the second liquid outlet connecting port 323 is connected with the liquid inlet end of the third infusion pipeline 200, the inner cavity of the second liquid outlet connecting port 323 is in communication with the inner cavity of the third infusion pipeline 200, and the inner cavity of the second liquid outlet connecting port 323 is in communication with the inner cavity of the tank body 311, when the inner cavity of the third infusion pipeline 200 presents a negative pressure state, the air in the inner cavity of the tank body 311 enters the inner cavity of the third infusion pipeline 200 through the second liquid outlet connecting port 323, so that the inner cavity of the tank body 311 presents a negative pressure state;

[0037] Please refer to Figures 1-3 , the fourth infusion pipeline 400 is in communication with the inner cavity of the second liquid inlet connecting port 322, and the inner cavity of the second liquid inlet connecting port 322 is in communication with the inner cavity of the tank body 311, when the inner cavity of the tank body 311 presents a negative pressure state, the air in the inner cavity of the fourth infusion pipeline 400 enters the inner cavity of the tank body 311, so that the inner cavity of the fourth infusion pipeline 400 presents a negative pressure state;

[0038] Please refer to Figures 1-4, the filter cartridge assembly 500 comprises a filter cartridge 510 arranged on the tank body 311 away from the outer shell 110, an end cover 520 mounted at the top opening of the filter cartridge 510, a filter mechanism 530 coaxially arranged in the inner cavity of the filter cartridge 510, and a liquid discharge pipeline 540 arranged on the bottom of the filter cartridge 510, the filter cartridge 510 comprises a cartridge body 511, a third liquid discharge connecting port 512 arranged on the outer sidewall of the cartridge body 511 and connected with the liquid inlet end of the fourth liquid conveying pipeline 400, and a second supporting leg 513 arranged at the bottom of the outer sidewall of the cartridge body 511, the filter mechanism 530 comprises a porous filter plate 531 coaxially arranged in the inner cavity of the cartridge body 511 and a filter cloth 532 arranged in the groove at the top of the porous filter plate 531, the filter cloth 532 includes but is not limited to polypropylene filter cloth, polyester filter cloth, nylon filter cloth and vinylon filter cloth, the inner cavity of the fourth liquid conveying pipeline 400 is in communication with the inner cavity of the third liquid discharge connecting port 512, the inner cavity of the third liquid discharge connecting port 512 is in communication with the inner cavity of the cartridge body 511, the material liquid is placed in the inner cavity of the cartridge body 511, the material liquid is in contact with the filter cloth 532, the material liquid is filtered and purified through the filter cloth 532, the purified water enters the bottom of the inner cavity of the cartridge body 511 through the porous filter plate 531, when the inner cavity of the fourth liquid conveying pipeline 400 is in a negative pressure state, the purified water at the bottom of the inner cavity of the cartridge body 511 enters the inner cavity of the fourth liquid conveying pipeline 400 through the third liquid discharge connecting port 512 and is discharged into the inner cavity of the tank body 311 through the fourth liquid conveying pipeline 400, the water discharged into the inner cavity of the tank body 311 is buffered into the bottom of the inner cavity of the tank body 311 through the baffle 340, the impact force of the water flow is reduced through the baffle 340, enters the space away from the baffle 340 on the side of the inner cavity of the tank body 311 through the gap between the bottom of the tank body 311 and the bottom of the partition plate 330, the water in the space away from the baffle 340 on the side of the inner cavity of the tank body 311 is filtered and purified again through the filter plate 350, until the water level exceeds the contact between the uppermost filter plate 350 and the liquid inlet end of the second liquid discharge connecting port 323, when the inner cavity of the third liquid conveying pipeline 200 is in a negative pressure state, the water in the inner cavity of the tank body 311 filtered and purified through the filter plate 350 enters the inner cavity of the third liquid conveying pipeline 200 through the second liquid discharge connecting port 323 and enters the inner cavity of the vacuum chamber 131 through the third liquid conveying pipeline 200, the liquid discharge valve 133 is opened, the water in the inner cavity of the vacuum chamber 131 is discharged from the liquid discharge valve 133, the inner cavity of the vacuum chamber 131 is stably evacuated, which ensures the stability of the transportation of purified water, can stably convey the purified water, and avoids damage to the equipment caused by the impact force of the intermittent water flow;

[0039] Please refer again to Figure 1It also includes a water quality detector 600 installed at the liquid outlet end of the second liquid discharge connection port 323 through a pipeline, and a circulating mechanism 700 installed between the third liquid conveying pipeline 200 and the fourth liquid conveying pipeline 400, and a PLC controller and a relay are further installed on the water quality detector 600, the PLC controller is electrically connected with the relay, the circulating mechanism 700 is composed of two pipelines and a liquid pump, one of the two pipelines is connected with the third liquid conveying pipeline 200 through a three-way pipe, and the other pipeline is connected with the fourth liquid conveying pipeline 400 through a three-way pipe, the water quality at the liquid outlet end of the second liquid discharge connection port 323 is detected by the water quality detector 600, and data is transmitted to the PLC controller, when the water quality is not up to standard, the power supply of the liquid pump is turned on by the PLC controller controlling the relay, the water in the third liquid conveying pipeline 200 is pumped into the fourth liquid conveying pipeline 400 by the liquid pump, and the water in the fourth liquid conveying pipeline 400 is filtered again in the inner cavity of the tank body 311, until the water quality reaches the standard.

[0040] The application also provides a use method of the industrial vacuum filtration system,

[0041] The use method of the industrial vacuum filtration system comprises the following steps:

[0042] S1: The liquid is placed in the inner cavity of the cylinder, the liquid is in contact with the filter cloth, the liquid is filtered and purified through the filter cloth with a specific water permeability, and the filtered and purified water enters the bottom of the inner cavity of the cylinder through the porous filter plate;

[0043] S2: When the inner cavity of the fourth liquid conveying pipeline is in a negative pressure state, the purified water at the bottom of the inner cavity of the cylinder enters the inner cavity of the fourth liquid conveying pipeline through the third liquid discharge connection port, and is discharged into the inner cavity of the tank through the fourth liquid conveying pipeline, the water discharged into the inner cavity of the tank is buffered into the bottom of the inner cavity of the tank through the spoiler, the impact force of the water flow is reduced through the spoiler, the water enters the space on the side of the inner cavity of the tank away from the spoiler through the gap between the bottom of the inner cavity of the tank and the bottom of the partition plate, and the water in the space on the side of the inner cavity of the tank away from the spoiler is filtered and purified again through the filter plate until the water level exceeds the contact between the uppermost filter plate and the liquid inlet end of the second liquid discharge connection port;

[0044] S3: When the inner cavity of the third liquid conveying pipeline is in a negative pressure state, the water filtered and purified by the filter plate in the inner cavity of the tank enters the inner cavity of the third liquid conveying pipeline through the second liquid discharge connection port and enters the inner cavity of the vacuum chamber through the third liquid conveying pipeline, the liquid discharge valve is opened, and the water in the inner cavity of the vacuum chamber is discharged from the liquid discharge valve, and the inner cavity of the vacuum chamber is stably vacuumized

[0045] Although the present application has been described with reference to the embodiments above, various changes and modifications can be suggested to one skilled in the art, and it is intended that the present application encompass such changes and modifications as fall within the scope of the appended claims. Particularly, each feature of the disclosed embodiments can be used in combination with any other feature, unless the context contradicts otherwise. The description herein of any feature or embodiment in connection with its description of related art does not constitute a recognition that such feature is part of the state of the art or a common general knowledge of persons skilled in the art. Furthermore, the description herein of any feature or embodiment in connection with its description of related art does not constitute an admission that such feature or embodiment is prior art to the present application, or part of the common general knowledge of the skilled person in the art. The disclosure of a single feature or embodiment in this specification does not constitute an admission that such feature or embodiment is part of the related art or part of the common general knowledge of the skilled person in the art.

Claims

1. An industrial vacuum filtration system, characterized by: The application relates to a vacuumizing mechanism (100) comprising an outer casing (110), a circulating water assembly (120) installed in the inner cavity of the outer casing (110), a vacuum chamber assembly (130) arranged in the inner cavity of the outer casing (110), and a vacuumizing assembly (140) arranged on the top of the outer casing (110) and connected with the circulating water assembly (120) and the vacuum chamber assembly (130) respectively. The circulating water assembly (120) comprises a circulating pump (121) arranged at the bottom of the inner cavity of the outer casing (110), a first liquid inlet pipeline (122) arranged at the liquid inlet end of the circulating pump (121) and connected with a tap water pipeline through the lateral wall of the outer casing (110), and a second liquid inlet pipeline (123) arranged at the liquid outlet end of the circulating pump (121). The vacuum chamber assembly (130) comprises a vacuum chamber (131) arranged in the inner cavity of the outer casing (110) and arranged at the upper end of the circulating pump (121), a first liquid inlet connecting port (132) arranged at the liquid inlet end of the top of the vacuum chamber (131) and penetrating through the top of the outer casing (110), and a liquid outlet valve (133) arranged at the liquid outlet end of the bottom of the vacuum chamber (131) and penetrating through the lateral wall of the outer casing (110). The vacuumizing assembly (140) comprises an exhaust pipeline (141) arranged at the exhaust end of the top of the vacuum chamber (131) and penetrating through the top of the outer casing (110), a check valve (142) arranged at the exhaust end of the exhaust pipeline (141) and arranged at the upper end of the outer casing (110), and a Venturi tube (143) arranged at the exhaust end of the check valve (142) and connected with the liquid outlet end of the second liquid inlet pipeline (123). A third liquid inlet pipeline (200) is arranged at the liquid inlet end of the first liquid inlet connecting port (132) and arranged at the upper end of the outer casing (110). A buffer tank assembly (300) comprises a buffer tank (310) arranged outside the outer casing (110), a top cover assembly (320) coaxially arranged at the opening of the top of the buffer tank (310) and connected with the liquid inlet end of the third liquid inlet pipeline (200), a partition plate (330) arranged in the inner cavity of the buffer tank (310) and connected with the top of the inner cavity of the top cover assembly (320), a spoiler (340) arranged between the inner cavity of the buffer tank (310) and the partition plate (330), and a filter plate (350) arranged in another space between the inner cavity of the buffer tank (310) and the partition plate (330). The buffer tank (310) comprises a tank body (311), a first liquid outlet connecting port (312) arranged at the bottom of the tank body (311), and a first supporting leg (313) arranged at the bottom of the lateral wall of the tank body (311). ​ The top cover assembly (320) comprises a top cover (321) installed at the top opening of the tank body (311), a second liquid inlet port (322) arranged at the top of the top cover (321) and penetrating the top of the inner cavity of the top cover (321) and the inner cavity of the tank body (311) and corresponding to the spoiler (340), and a second liquid outlet port (323) arranged at the top of the top cover (321) and penetrating the top of the inner cavity of the top cover (321) and the inner cavity of the tank body (311) and corresponding to the filter plate (350). The water quality detector (600) is installed at the liquid outlet end of the second liquid outlet port (323) through a pipeline.

2. A vacuum filtration system for industrial use according to claim 1, characterized in that: A fourth liquid conveying pipeline (400) is further arranged at the liquid inlet end of the second liquid inlet port (322) and at the upper end of the top cover (321).

3. A vacuum filtration system for industrial use according to claim 2, characterized in that: A filter cartridge assembly (500) is further arranged, which comprises a filter cartridge (510) arranged on the side of the tank body (311) away from the outer shell (110), an end cover (520) installed at the top opening of the filter cartridge (510), a filter mechanism (530) coaxially arranged in the inner cavity of the filter cartridge (510), and a liquid discharge pipeline (540) arranged at the bottom liquid discharge end of the filter cartridge (510). The filter cartridge (510) comprises a cartridge body (511), a third liquid outlet port (512) arranged on the outer sidewall of the cartridge body (511) and connected to the liquid inlet end of the fourth liquid conveying pipeline (400), and a second supporting leg (513) arranged at the bottom of the outer sidewall of the cartridge body (511). The filter mechanism (530) comprises a porous filter plate (531) coaxially arranged in the inner cavity of the cartridge body (511), and a filter cloth (532) arranged in the groove at the top of the porous filter plate (531).

4. A vacuum filtration system for industrial use according to claim 3, characterized in that: A circulating mechanism (700) is further arranged between the third liquid conveying pipeline (200) and the fourth liquid conveying pipeline (400).

5. A method of using an industrial vacuum filtration system as claimed in any one of claims 1 to 4, characterised in that: The use method of the industrial vacuum filtration system comprises the following steps: S1: placing the liquid in the inner cavity of the cartridge body, the liquid being in contact with the filter cloth, filtering and purifying the liquid through the filter cloth with a specific water permeability, and the purified water entering the bottom of the inner cavity of the cartridge body through the porous filter plate; S2: when the inner cavity of the fourth liquid conveying pipeline is in a negative pressure state, the purified water at the bottom of the inner cavity of the cartridge body enters the inner cavity of the fourth liquid conveying pipeline through the third liquid outlet port, and is discharged to the inner cavity of the tank body through the fourth liquid conveying pipeline, the water discharged to the inner cavity of the tank body is buffered into the bottom of the inner cavity of the tank body through the spoiler, the impact force of the water flow is reduced through the spoiler, the water enters the space on the side of the inner cavity of the tank body away from the spoiler through the gap between the bottom of the inner cavity of the tank body and the bottom of the partition plate, and the water in the space on the side of the inner cavity of the tank body away from the spoiler is filtered and purified again through the filter plate until the water level exceeds the contact between the uppermost filter plate and the liquid inlet end of the second liquid outlet port. S3: When the inner cavity of the third infusion pipeline presents a negative pressure state, the water filtered and purified by the filter plate in the inner cavity of the tank enters the inner cavity of the third infusion pipeline through the second liquid discharge connection and enters the inner cavity of the vacuum chamber through the third infusion pipeline. The water in the inner cavity of the vacuum chamber is discharged from the liquid discharge valve, and the inner cavity of the vacuum chamber is stably evacuated.

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