A water collecting device for vacuum machine for producing environment-friendly paper tray

Abstract

This utility model discloses a vacuum machine water collection device for producing environmentally friendly paper trays, belonging to the technical field of vacuum machine water collection devices. It includes a gas-liquid separation assembly composed of a separation tank, an air inlet, an air outlet, a liquid outlet, an annular baffle, a cyclone reversing pipe, a horn cover, a conical filter cylinder, and a spiral guide plate. A backwashing assembly extending through the separation tank, the cyclone reversing pipe, and the conical filter cylinder to the inside of the separation tank is installed at the top of the separation tank. This backwashing assembly is used to backwash the conical filter cylinder. A drainage assembly is installed at the bottom of the liquid outlet to discharge the water collected inside the separation tank. This utility model, by setting up the backwashing assembly, can achieve backwashing of the conical filter cylinder, and also flush the outer walls of the cyclone reversing pipe and the spiral guide plate, as well as the inner wall of the separation tank, ensuring that the gas-liquid separation assembly maintains good separation performance for a long time.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum machine water collection devices, specifically a vacuum machine water collection device for producing environmentally friendly paper trays. Background Technology

[0002] Environmentally friendly paper trays (molded pulp products) are environmentally friendly packaging products made from renewable fiber materials (such as waste paper, sugarcane pulp, bamboo pulp, etc.) through a molding process. They are widely used in cushioning packaging or containers in the food, electronics, medical and other industries.

[0003] In the production of environmentally friendly paper molded products, the vacuum machine (or vacuum adsorption system) is the core equipment in the molding process, mainly used in the wet pressing stage. Its role extends throughout the fiber distribution, preliminary shaping, and dewatering processes.

[0004] By using vacuum negative pressure, pulp fibers are quickly adsorbed onto the mold surface, ensuring that the fibers are evenly covered in the complex structure of the mold (such as concave and convex surfaces and buffer grooves), avoiding local accumulation or voids. At the same time, during the adsorption molding process, the vacuum machine uses negative pressure to extract and filter out a large amount of water from the pulp, reducing the moisture content of the wet preform from 80%~90% to 50%~60%, thus reducing energy consumption for subsequent hot pressing and shaping.

[0005] Gas-liquid separators are key equipment in vacuum adsorption systems, primarily used to separate liquids and gases entrained during vacuum suction, thereby protecting the vacuum pump, improving system efficiency, and promoting water recycling. In the production of environmentally friendly paper trays, when the vacuum machine draws water under negative pressure, the water contains fibrous impurities. Therefore, a filter plate structure is needed inside the gas-liquid separator to filter these impurities. After the gas-liquid separator has been running for a period of time, the surface of the filter plate structure is easily clogged by adhering fibrous impurities. Based on this, to achieve self-cleaning of the internal filtration structure of the gas-liquid separator, a water collection device for vacuum machines used in the production of environmentally friendly paper trays is provided. Utility Model Content

[0006] The purpose of this utility model is to provide a vacuum machine water collection device for producing environmentally friendly paper trays in order to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum machine water collection device for producing environmentally friendly paper trays, comprising a gas-liquid separation assembly consisting of a separation tank, an air inlet, an air outlet, a liquid outlet, an annular partition, a cyclone reversing tube, and a spiral guide plate. The annular partition is fixed to the inner side of the separation tank near the top. The air inlet and air outlet are respectively fixed to the two sides of the outer wall of the separation tank and communicate with the inner side of the separation tank. The through holes of the air inlet and air outlet are respectively located below and above the annular partition. The cyclone reversing tube is fixed to the bottom of the annular partition. The liquid outlet is fixed to the bottom of the separation tank and communicates with the inner cavity of the separation tank. The spiral guide plate is fixed to the outside of the cyclone reversing tube. A horn cover is fixed to the bottom of the cyclone reversing tube. A conical filter cylinder is fixed to the bottom of the horn cover. The conical filter cylinder is used to filter the air entering the cyclone reversing tube.

[0008] The top of the separation tank is provided with a backwashing assembly that extends through the separation tank, the cyclone reversing pipe, and the conical filter cylinder to the inside of the separation tank. The backwashing assembly is used to backwash the conical filter cylinder.

[0009] A drainage assembly is installed at the bottom of the drain port to drain the water collected inside the separator.

[0010] As a further embodiment of this utility model: the backwashing assembly includes a top box, a connector, a concave nozzle, and a nozzle;

[0011] The top box is fixed to the top of the separation tank, the connector is fixed to the middle of the top of the top box and extends into the inside of the top box, the top of the concave nozzle extends into the inside of the connector and is rotatably connected to the connector, and the bottom of the concave nozzle penetrates the separation tank, the swirl reversing pipe, and the conical filter cylinder to the inside of the separation tank.

[0012] The nozzle is fixed to the outer wall of the concave nozzle located inside the conical filter cylinder, and the water flow sprayed from the nozzle is used to backwash the conical filter cylinder.

[0013] As a further embodiment of this utility model: the concave nozzle is located in the part inside the separator tank in a concave shape, and the vertical part of the concave nozzle located outside the conical filter cylinder extends upward close to the bottom of the annular partition and is distributed on one side of the spiral guide plate.

[0014] Two sets of symmetrically distributed nozzles are installed on the outer side of the concave nozzle corresponding to the spiral guide plate. One set of nozzles faces the spiral guide plate, and the other set of nozzles faces the inner wall of the separation tank.

[0015] As a further improvement of this utility model, the backwashing assembly also includes a driven gear, a drive motor, and a driving gear;

[0016] The driven gears are distributed inside the top box and are fixedly connected to the outer wall of the concave nozzle. The drive motor is installed on the top of the top box, and the output shaft of the drive motor passes through the inside of the top box and is fixedly connected to the drive gear.

[0017] The driving gear is located on one side of the driven gear and meshes with the driven gear;

[0018] The drive motor is used to drive the concave nozzle to rotate, thereby achieving all-round flushing of the conical filter cartridge, vortex reversing pipe, spiral guide plate and the inner wall of the separator.

[0019] As a further embodiment of this utility model: the drainage assembly includes a water collection tank, an upper connecting pipe, a first solenoid valve, a lower connecting pipe, a second solenoid valve, a low water level sensor, and a high water level sensor;

[0020] The top of the water collection tank is connected to the first solenoid valve via an upper connecting pipe, and the top of the first solenoid valve is connected to the drain port.

[0021] The bottom of the upper connecting pipe is connected to the second solenoid valve through the lower connecting pipe;

[0022] The low water level sensor and the high water level sensor are vertically distributed and installed on one side of the water collection tank and extend into the water collection tank to monitor the water level inside the water collection tank.

[0023] As a further improvement of this utility model, sealing elements are provided at the contact points between the concave nozzle and the separator, as well as at the contact points between the low water level sensor, the high water level sensor, and the water collection tank.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] By setting up a backwashing component, the conical filter cartridge can be backwashed. At the same time, the outer wall of the cyclone diverter tube, the spiral guide plate, and the inner wall of the separator can also be flushed, so that the gas-liquid separation component can maintain a good separation effect for a long time. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the separation tank of this utility model;

[0028] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a cross-sectional view of the cyclone diverter, horn cover, and conical filter cylinder of this utility model.

[0030] In the diagram: 1. Gas-liquid separation assembly; 101. Separation tank; 102. Air inlet; 103. Air outlet; 104. Liquid outlet; 105. Annular baffle; 106. Swirl reversing pipe; 107. Horn cover; 108. Conical filter cartridge; 109. Spiral guide plate; 2. Backwashing assembly; 201. Top box; 202. Connector; 203. Concave nozzle; 204. Nozzle; 205. Driven gear; 206. Drive motor; 207. Drive gear; 3. Drainage assembly; 301. Water collection tank; 302. Upper connecting pipe; 303. First solenoid valve; 304. Lower connecting pipe; 305. Second solenoid valve; 306. Low water level sensor; 307. High water level sensor. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 In this embodiment of the present invention, a vacuum machine water collection device for producing environmentally friendly paper trays includes a gas-liquid separation assembly 1 consisting of a separation tank 101, an air inlet 102, an air outlet 103, a drain outlet 104, an annular partition 105, a cyclone reversing pipe 106, and a spiral guide plate 109. The annular partition 105 is fixed to the inner side of the separation tank 101 near the top. The air inlet 102 and the air outlet 103 are respectively fixed to both sides of the outer wall of the separation tank 101 and are connected to the inner side of the separation tank 101. The through holes of the air inlet 103 are located below and above the annular partition 105, respectively. The cyclone reversing tube 106 is fixed to the bottom of the annular partition 105. The drain port 104 is fixed to the bottom of the separator 101 and communicates with the inner cavity of the separator 101. The spiral guide plate 109 is fixed to the outside of the cyclone reversing tube 106. A horn cover 107 is fixed to the bottom of the cyclone reversing tube 106. A conical filter cylinder 108 is fixed to the bottom of the horn cover 107. The conical filter cylinder 108 is used to filter the air entering the cyclone reversing tube 106.

[0033] The top of the separator 101 is provided with a backwashing assembly 2 that extends through the separator 101, the cyclone reversing pipe 106, the conical filter cylinder 108 to the inside of the separator 101. The backwashing assembly 2 is used to backwash the conical filter cylinder 108.

[0034] A drainage assembly 3 is installed at the bottom of the drain port 104, which drains the water collected inside the separator 101.

[0035] The backwash assembly 2 includes a top box 201, a connector 202, a concave nozzle 203, a nozzle 204, a driven gear 205, a drive motor 206, and a driving gear 207;

[0036] The top box 201 is fixed to the top of the separator 101, the connector 202 is fixed to the middle of the top of the top box 201 and extends into the interior of the top box 201, the top of the concave nozzle 203 extends into the interior of the connector 202 and is rotatably connected to the connector 202, and the bottom of the concave nozzle 203 penetrates the separator 101, the swirl reversing pipe 106, and the conical filter cylinder 108 to the inside of the separator 101;

[0037] The nozzle 204 is fixed to the outer wall of the concave nozzle 203 located inside the conical filter cylinder 108. The water flow sprayed from the nozzle 204 is used to backwash the conical filter cylinder 108.

[0038] The concave nozzle 203 is located inside the separator 101 in a concave shape, and the vertical part of the concave nozzle 203 located outside the conical filter cylinder 108 extends upward close to the bottom of the annular baffle 105 and is distributed on one side of the spiral guide plate 109.

[0039] Two sets of symmetrically distributed nozzles 204 are installed on the outer side of the concave nozzle 203 corresponding to the spiral guide plate 109. One set of nozzles 204 faces the spiral guide plate 109, and the other set of nozzles 204 faces the inner wall of the separation tank 101.

[0040] Driven gears 205 are distributed inside the top box 201 and are fixedly connected to the outer wall of the concave nozzle 203. Drive motor 206 is installed on the top of the top box 201, and the output shaft of drive motor 206 passes through the inside of the top box 201 and is fixedly connected to drive gear 207.

[0041] The driving gear 207 is located on one side of the driven gear 205 and meshes with the driven gear 205;

[0042] The drive motor 206 is used to drive the concave nozzle 203 to rotate circumferentially, thereby achieving all-round flushing of the conical filter cylinder 108, the vortex reversing pipe 106, the spiral guide plate 109, and the inner wall of the separation tank 101.

[0043] In this embodiment, the gas-liquid separation component 1 operates on the following principle:

[0044] The gas-liquid mixture enters the interior of the separator 101. The high-speed airflow enters the separator 101 through the air inlet 102. The flow velocity decreases due to the expansion of the cross-sectional area of ​​the separator 101. At the same time, the spiral guide plate 109 on the outside of the swirl diverter 106 cooperates with the swirl diverter 106 to further extend the gas flow trajectory. During this process, the liquid droplets, due to their greater density than the gas, settle to the surface of the spiral guide plate 109 under the action of gravity and flow downward to converge at the bottom of the separator 101.

[0045] Air with most of the water removed is filtered through a cone filter 108 to remove residual moisture and fine fibers. The fully filtered gas is finally output to the vacuum pump through the outlet 103.

[0046] During the above operation, the water flowing downward along the outer wall of the spiral guide plate 109 and the vortex reversing pipe 106 is guided by the horn cover 107 to avoid the conical filter cylinder 108, thereby preventing the water flow from clogging the filter holes on the surface of the conical filter cylinder 108 and keeping the filter holes on the surface of the conical filter cylinder 108 open.

[0047] After running for a period of time, the conical filter cartridge 108 can be cleaned periodically. At this time, the connection between the connector 202 and the external water pipe is turned on, and the drive motor 205 is started. External water is transported to the inside of the concave nozzle 203 through the connector 202 and sprayed out through the nozzle 204. The water flow sprayed out by the nozzle 204 located inside the conical filter cartridge 108 can form a reverse flushing of the conical filter cartridge 108, so that the fine fibers adhering to the outer surface of the conical filter cartridge 108 are washed off.

[0048] The water jet from the nozzle 204 located inside the separator 101 can wash the outer wall of the cyclone reversing pipe 106, the spiral guide plate 109, and the inner wall of the separator 101.

[0049] Meanwhile, the drive motor 206 can drive the concave nozzle 203 to rotate circumferentially through the transmission of the drive gear 207 and the driven gear 205, so as to realize the all-round flushing operation (it should be noted that: a rotary seal is provided between the concave nozzle 203 and the connector 202, and the end of the concave nozzle 203 located inside the separator 101 has a sealed structure).

[0050] Please refer to this carefully. Figure 1 The drainage assembly 3 includes a water collection tank 301, an upper connecting pipe 302, a first solenoid valve 303, a lower connecting pipe 304, a second solenoid valve 305, a low water level sensor 306, and a high water level sensor 307.

[0051] The top of the water collection tank 301 is connected to the first solenoid valve 303 via the upper connecting pipe 302, and the top of the first solenoid valve 303 is connected to the drain port 104.

[0052] The bottom of the upper connecting pipe 302 is connected to the second solenoid valve 305 through the lower connecting pipe 304;

[0053] Low water level sensor 306 and high water level sensor 307 are vertically distributed and installed on one side of water collection tank 301 and extend into the interior of water collection tank 301 to monitor the water level inside water collection tank 301.

[0054] In this embodiment: the low water level sensor 306 and the high water level sensor 307 can monitor the lowest and highest water levels of the water collection tank 301;

[0055] The first solenoid valve 303 is normally open and the second solenoid valve 305 is normally closed. The water filtered from inside the separator 101 can flow through the drain port 104, the first solenoid valve 303, and the upper connecting pipe 302 to the water collection tank 301 for collection. When the water level inside the water collection tank 301 reaches the highest water level, the first solenoid valve 303 closes and the second solenoid valve 305 opens, so as to discharge the collected water.

[0056] When the water collection tank 301 drops to the lowest water level, the first solenoid valve 303 and the second solenoid valve 305 reset to their initial state. By repeating this process, the automatic discharge of water collected inside the separator 101 can be achieved.

[0057] Please refer to this carefully. Figures 1-3 Sealing elements are provided at the contact points between the concave nozzle 203 and the separator 101, as well as at the contact points between the low water level sensor 306 and the high water level sensor 307 and the water collection tank 301.

[0058] In this embodiment, this structure allows the separator 101 and the water collection tank 301 to maintain a good sealing effect.

[0059] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum machine water collection device for producing environmentally friendly paper trays, comprising a gas-liquid separation assembly (1) consisting of a separation tank (101), an air inlet (102), an air outlet (103), a liquid outlet (104), an annular baffle (105), a cyclone reversing pipe (106), and a spiral guide plate (109), wherein the annular baffle (105) is fixed inside the separation tank (101) near the top, and the air inlet (102) and the air outlet (103) are respectively fixed to the separation tank (104). 101) The outer walls of the separator (101) are connected to the inner side of the separator (101), the through holes of the air inlet (102) and air outlet (103) are located below and above the annular partition (105) respectively, the vortex reversing pipe (106) is fixed to the bottom of the annular partition (105), the drain port (104) is fixed to the bottom of the separator (101) and connected to the inner cavity of the separator (101), and the spiral guide plate (109) is fixed to the outside of the vortex reversing pipe (106). The bottom of the vortex reversing tube (106) is fixed with a horn cover (107), and the bottom of the horn cover (107) is fixed with a conical filter cylinder (108). The conical filter cylinder (108) is used to filter the air entering the vortex reversing tube (106). The top of the separation tank (101) is provided with a backwashing assembly (2) that extends through the separation tank (101), the cyclone reversing pipe (106), and the conical filter cylinder (108) to the inside of the separation tank (101). The backwashing assembly (2) is used to backwash the conical filter cylinder (108). A drainage assembly (3) is installed at the bottom of the drain port (104) to drain the water collected inside the separator (101).

2. The vacuum machine water collection device for producing environmentally friendly paper trays according to claim 1, characterized in that, The backwash assembly (2) includes a top box (201), a connector (202), a concave nozzle (203), and a nozzle (204); The top box (201) is fixed to the top of the separation tank (101), the connector (202) is fixed to the middle of the top of the top box (201) and extends into the interior of the top box (201), the top of the concave nozzle (203) extends into the interior of the connector (202) and is rotatably connected to the connector (202), and the bottom of the concave nozzle (203) penetrates the separation tank (101), the swirl reversing pipe (106), and the conical filter cylinder (108) to the inside of the separation tank (101); The nozzle (204) is fixed to the outer wall of the concave nozzle (203) located inside the conical filter cylinder (108), and the water flow sprayed through the nozzle (204) is used to backwash the conical filter cylinder (108).

3. A vacuum machine water collection device for producing environmentally friendly paper trays according to claim 2, characterized in that, The concave nozzle (203) is located inside the separator (101) in a concave shape, and the vertical part of the concave nozzle (203) located outside the conical filter cylinder (108) extends upward close to the bottom of the annular baffle (105) and is distributed on one side of the spiral guide plate (109). Two sets of symmetrically distributed nozzles (204) are installed on the outer side of the concave nozzle (203) corresponding to the spiral guide plate (109). One set of nozzles (204) faces the spiral guide plate (109), and the other set of nozzles (204) faces the inner wall of the separation tank (101).

4. A vacuum machine water collection device for producing environmentally friendly paper trays according to claim 2, characterized in that, The backwash assembly (2) also includes a driven gear (205), a drive motor (206), and a driving gear (207); The driven gear (205) is distributed inside the top box (201) and fixedly connected to the outer wall of the concave nozzle (203). The drive motor (206) is installed on the top of the top box (201), and the output shaft of the drive motor (206) passes through the inside of the top box (201) and is fixedly connected to the drive gear (207). The driving gear (207) is located on one side of the driven gear (205) and meshes with the driven gear (205); The drive motor (206) is used to drive the concave nozzle (203) to rotate in a circular motion, thereby achieving all-round flushing of the conical filter cylinder (108), the vortex reversing pipe (106), the spiral guide plate (109), and the inner wall of the separator (101).

5. A vacuum machine water collection device for producing environmentally friendly paper trays according to claim 2, characterized in that, The drainage assembly (3) includes a water collection tank (301), an upper connecting pipe (302), a first solenoid valve (303), a lower connecting pipe (304), a second solenoid valve (305), a low water level sensor (306), and a high water level sensor (307). The top of the water collection tank (301) is connected to the first solenoid valve (303) via an upper connecting pipe (302), and the top of the first solenoid valve (303) is connected to the drain port (104); The bottom of the upper connecting pipe (302) is connected to the second solenoid valve (305) through the lower connecting pipe (304); The low water level sensor (306) and high water level sensor (307) are vertically distributed and installed on one side of the water collection tank (301) and extend into the water collection tank (301) to monitor the water level inside the water collection tank (301).

6. A vacuum machine water collection device for producing environmentally friendly paper trays according to claim 5, characterized in that, The concave nozzle (203) is provided with a sealing element at the contact position with the separator (101), the low water level sensor (306), the high water level sensor (307) and the water collection tank (301).

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