Sewage treatment device for tomato sauce production

Abstract

The invention relates to the technical field of sewage treatment, and provides a tomato sauce production sewage treatment device which comprises a pretreatment pool and two grids and further comprises a scraper, a dirt temporary storage box, a cleaning shaft, a water inlet pipe and a water outlet pipe, the scraper is arranged on the grids in a liftable mode, filter holes are formed in the scraper, and the dirt temporary storage box is arranged in the pretreatment pool. The number of the sewage temporary storage boxes is two, a collecting opening is formed in the pretreatment pool, the sewage temporary storage boxes are communicated with the pretreatment pool through the collecting opening, a filter screen is installed in each sewage temporary storage box, a pressing plate is movably arranged in each sewage temporary storage box, the bottom of each sewage temporary storage box is communicated with the pretreatment pool, and a cleaning shaft is rotatably arranged on a scraper. The cleaning shaft is fixedly connected with a brush rod, the two groups of water inlet pipes alternately feed water, and the water outlet pipe is communicated with the pretreatment tank. By means of the technical scheme, the technical problems that in the prior art, dirt on the grating needs to be manually cleaned, and water on the dirt needs to be manually separated are solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of sewage treatment, and particularly to a sewage treatment device for ketchup production. Background Art

[0002] The production process of ketchup is as follows: tomatoes → storage tank → pumping → high-pressure spraying and washing → crushing → sorting → boiler → cooling → evaporation → sterilization → packaging → finished products. A large amount of wastewater is generated during the production process of ketchup, mainly including flushing water, spraying water, product cooling water, equipment cooling water, as well as boiler cleaning water, workshop floor cleaning water, and equipment cleaning water, etc., which together form mixed sewage.

[0003] The production sewage of ketchup first passes through a grille to intercept some suspended solids, tomato skins, and tomato seeds, reducing the difficulty of subsequent treatment. The effluent from the grille enters the regulation tank. After homogenization and equalization, the effluent enters the air flotation tank. By adding coagulants and flocculants and mechanical stirring, the suspended solids in the sewage are aggregated. Then, the tiny bubbles released by the high-pressure dissolved air tank are used to bring the suspended solids in the sewage to the surface, and a slag scraper is used to remove the floating slag. The supernatant enters the hydrolysis acidification tank, where microorganisms are used to decompose the macromolecular organic matter in the sewage into easily degradable small-molecular organic matter, turn the fine organic particles into degradable water-soluble organic matter, improve the biodegradability of the sewage, and at the same time reduce the pollutant concentration in the sewage. Then, the biological contact oxidation treatment method is used. By blowing air through a blower to increase the dissolved oxygen concentration in the sewage, the aerobic bacteria group and the degradation effect of microorganisms are used to decompose the organic matter in the sewage into inorganic substances, purifying the water quality. The effluent enters the inclined tube sedimentation tank for solid-liquid separation to further remove the suspended solids and pollutants in the water. The effluent meets the standards and can be discharged.

[0004] When the grille is used to preliminarily filter the sewage, the grille blocks the dirt for a long time, and the dirt accumulates at the grille, hindering the subsequent sewage flow. It is necessary to manually clean the dirt on the grille regularly, which is time-consuming and laborious. Moreover, when cleaning, the surface of the dirt is stained with a lot of water, resulting in waste of water resources, and it is also necessary to further dewater the filtered dirt, increasing the workload. Summary of the Invention

[0005] To overcome the above defects, the present invention provides a sewage treatment device for ketchup production, which is used to solve the technical problems in the prior art that it is necessary to manually clean the dirt on the grille and separate the water on the dirt.

[0006] According to one aspect, at least one embodiment of the present invention provides a sewage treatment device for ketchup production, including a pretreatment tank and a grille. There are two grilles, which are installed on both sides of the pretreatment tank. It also includes a scraper, a dirt temporary storage box, a cleaning shaft, a water inlet pipe and a water outlet pipe. The scraper is liftably arranged on the grille, and the scraper contacts the grille and the inner wall of the pretreatment tank. Filter holes are provided on the scraper. There are two dirt temporary storage boxes. Collection ports are provided on the pretreatment tank, and the dirt temporary storage boxes are communicated with the pretreatment tank through the collection ports. A filter screen is installed inside the dirt temporary storage box, and a pressing plate is movably arranged inside the dirt temporary storage box. The bottom of the dirt temporary storage box is communicated with the pretreatment tank. The cleaning shaft is rotatably and movably arranged on the scraper, and a brush rod is fixedly connected to the cleaning shaft. The brush rod contacts the grille and the scraper. There are two groups of water inlet pipes, and the two groups of water inlet pipes are communicated with both sides of the pretreatment tank. The two groups of water inlet pipes alternate in water inlet. The water outlet pipe is communicated with the pretreatment tank, and the water outlet pipe is located between the two grilles.

[0007] To realize the lifting of the scraper, a lifting mechanism is further included. The lifting mechanism is movably arranged above the pretreatment tank and is used to lift the scraper. The lifting mechanism includes a moving frame, a winch and a lifting frame. The moving frame is movably arranged above the pretreatment tank, the winch is movably arranged on the moving frame, a pulling rope is wound on the winch, the lifting frame is fixedly connected to the end of the pulling rope, a limiting ring is fixedly connected to the scraper, and the lifting frame can extend into the inside of the limiting ring as the winch moves. The lifting frame is connected to the winch through a telescopic rod.

[0008] To further reduce the residence time of dirt on the grille, the grille is movably arranged inside the pretreatment tank.

[0009] To timely discharge the dirt, a cleaning port is provided on the dirt temporary storage box. The dirt temporary storage box is communicated with a waste collection box through the cleaning port. A baffle is connected to the inner wall of the waste collection box through a compression spring and a telescopic rod, and the baffle is in sealing sliding fit with the cleaning port.

[0010] To further separate the dirt and water, a heater is installed inside the baffle.

[0011] The beneficial effects of the embodiments of the present invention are as follows: 1. In the present invention, through the alternating water inlet of two groups of water inlet pipes, the two grilles alternately filter the sewage entering the pretreatment tank. The grille not in the working state is close to the side wall of the pretreatment tank, concentrating the filtered dirt in a smaller range. When the scraper rises, the dirt can be lifted to the collection port. While the scraper rises, the cleaning shaft drives the brush rod to rotate to clean the surfaces of the grille and the scraper, preventing the dirt from blocking the grille. When the scraper rises to the collection port, the dirt can enter the interior of the dirt temporary storage box under the cleaning action of the brush rod.

[0012] 2. In the present invention, the filter screen can block the dirt in the dirt temporary storage box, and the moisture on the surface of the dirt passes through the filter screen and flows back into the interior of the pretreatment tank. By moving the pressing plate, the dirt is pushed towards the baffle. The pressing plate and the baffle cooperate to squeeze out the moisture in the dirt so that it flows back into the interior of the pretreatment tank. The squeezed dirt pushes the baffle into the interior of the dirt collection box, and at the same time, part of the squeezed dirt falls into the interior of the dirt collection box for collection, thereby separating the moisture adhered to the dirt, reducing the waste of water resources, and facilitating the subsequent treatment of the dirt.

[0013] 3. In the present invention, through the movement of the grille, the flow of the sewage in the pretreatment tank can be improved. At the same time, the grille can be away from the dirt sent by the water inlet pipe, reducing the adhesion and retention of the dirt on the grille. When the grille approaches the inner wall of the pretreatment tank, it can also concentrate the dirt, making the scraper contact the inner wall of the pretreatment tank to clean out the concentrated dirt.

[0014] 4. Therefore, compared with the sewage treatment device for ketchup production in the prior art, in the present invention, through the alternating operation of two grilles and the alternating water inlet of two groups of water inlet pipes, the retention of dirt generated by the long-term operation of the same grille is reduced. When the scraper rises, the dirt blocked by the grille is lifted, and at the same time, the drive shaft drives the brush rod to rotate to clean the surfaces of the grille and the scraper. When the scraper rises to the collection port, the dirt is swept into the interior of the dirt temporary storage box. The pressing plate and the baffle cooperate to squeeze the dirt, and the squeezed moisture falls through the filter screen and flows back into the interior of the pretreatment tank to separate the dirt and the moisture. The squeezed dirt presses the baffle into the interior of the dirt collection box, and the dirt falls into the interior of the dirt collection box for collection, realizing the automatic cleaning of the dirt on the grille, separating the dirt and the moisture, reducing the workload, and facilitating the subsequent treatment of the cleaned dirt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the exemplary embodiments of the present invention and these drawings.

[0016] Figure 1 It is a schematic structural diagram of the first perspective of the whole in an embodiment of the present invention; Figure 2 is Figure 1 a schematic structural diagram of a partial cross-section in the embodiment of; Figure 3 is Figure 1 a schematic structural diagram of a scraper, a cleaning shaft, a brush rod and an installation box in the embodiment of; Figure 4 is Figure 1 a schematic structural diagram of a pressing plate, an electric cylinder III, a waste collection box and a pressing spring in the embodiment of; Figure 5 is Figure 1 a schematic structural diagram of a moving frame, a winch, a lifting frame and an electric cylinder II in the embodiment of; Figure 6 is Figure 2 a schematic enlarged partial structure diagram at position A in; Figure 7 is Figure 1 a schematic structural diagram of a support plate, a drive box, a motor and a gear set in the embodiment of; Figure 8 is Figure 1 a schematic structural diagram of a pressing spring, a baffle and a heater in the embodiment of; Figure 9 is Figure 1 a schematic structural diagram of the second perspective of the whole in the embodiment of.

[0017] In the figure: 1, pretreatment tank; 2, grille; 3, electric cylinder I; 4, water inlet pipe; 5, water outlet pipe; 6, water supply pipe; 7, three-way valve; 8, scraper; 9, dirt temporary storage box; 10, filter screen; 11, pressing plate; 12, electric cylinder III; 13, waste collection box; 14, pressing spring; 15, baffle; 16, heater; 17, cleaning shaft; 18, brush rod; 19, installation box; 20, electric cylinder IV; 21, drive frame; 22, support plate; 23, drive box; 24, motor; 25, gear set; 101, moving frame; 102, winch; 103, lifting frame; 104, screw feed mechanism; 105, electric cylinder II; 106, pull rope; 107, limit ring. Detailed implementation manners The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0018] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, only one of the components with the same structure or function is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0019] In this article, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", and "join" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0020] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0021] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0022] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0023] Such as Figures 1 to 9As shown, it shows a sewage treatment device for ketchup production in an embodiment of the present invention, including a pretreatment tank 1 and a grille 2. There are two grilles 2, and the grilles 2 are installed on both sides of the pretreatment tank 1. It also includes a scraper 8, a dirt temporary storage box 9, a cleaning shaft 17, a water inlet pipe 4 and a water outlet pipe 5. Compared with the sewage treatment device for ketchup production in the prior art, in the present invention, the two grilles 2 work alternately, and the two groups of water inlet pipes 4 alternate in water inlet, reducing the residence of dirt generated by the long-term work of the same grille 2. The dirt blocked by the grille 2 is lifted by the rising of the scraper 8. At the same time, the drive shaft drives the brush rod 18 to rotate to clean the surfaces of the grille 2 and the scraper 8. When the scraper 8 rises to the collection port, the dirt is swept into the interior of the dirt temporary storage box 9. The pressing plate 11 and the baffle 15 cooperate to squeeze the dirt, and the squeezed water falls through the filter screen 10 and flows back into the interior of the pretreatment tank 1 to separate the dirt and water. The squeezed dirt presses the baffle 15 into the interior of the dirt collection box, and the dirt falls into the interior of the dirt collection box for collection, realizing the automatic cleaning of the dirt on the grille 2, separating the dirt and water, reducing the workload, and facilitating the subsequent treatment of the cleaned dirt.

[0024] As Figures 1 to 2 shown, to reduce the residence of dirt on the grille 2, the grille 2 is movably arranged inside the pretreatment tank 1. Two electric cylinders 1 3 are installed on the pretreatment tank 1, and the electric cylinders 1 3 correspond to the grilles 2 one by one. The grille 2 is fixedly connected to the output end of the electric cylinder 1 3. The grille 2 can be driven to move by the electric cylinder 1 3. The grille 2 contacts the inner wall of the pretreatment tank 1. The sewage discharged into the pretreatment tank 1 is preliminarily filtered by the grille 2, and the suspended matter and dirt such as tomato skins and tomato seeds are blocked on the side of the grille 2 away from the water outlet pipe 5.

[0025] As Figures 1 to 2 shown, there are two groups of water inlet pipes 4. The two groups of water inlet pipes 4 are communicated with both sides of the pretreatment tank 1. The two groups of water inlet pipes 4 alternate in water inlet. The water outlet pipe 5 is communicated with the pretreatment tank 1. The water outlet pipe 5 is located between the two grilles 2. The two groups of water inlet pipes 4 are communicated with each other and are communicated with a water delivery pipe 6. The sewage is sent through the water delivery pipe 6. The water delivery pipe 6 is communicated with the two groups of water inlet pipes 4 through a three-way valve 7. The three-way valve 7 is used to control the communication between the water delivery pipe 6 and one of the groups of water inlet pipes 4. Water is sent into the interior of the pretreatment tank 1 through the water inlet pipe 4. The two groups of water inlet pipes 4 work alternately, so that the sewage alternately enters both sides of the pretreatment tank 1. The two grilles 2 alternately filter the discharged sewage, avoiding the accumulation and adhesion of dirt caused by the long-term independent work of the grille 2. The grille 2 is driven to move by the electric cylinder 1 3, further increasing the flow of sewage and at the same time expanding the activity space of the dirt, reducing the residence time of the dirt on the surface of the grille 2, thereby reducing the blockage of the grille 2 by the dirt. The sewage filtered by the grille 2 flows into the regulation tank through the water outlet pipe 5 for subsequent treatment.

[0026] AsFigures 1 to 6 As shown in the figure, the scraping plate 8 is arranged on the grille 2 in a liftable manner. The scraping plate 8 is fixedly connected with a slider, and a chute matching the slider is provided on the grille 2. The scraping plate 8 is in contact with the grille 2 and the inner wall of the pretreatment tank 1. Filter holes are provided on the scraping plate 8. To realize the lifting of the scraping plate 8, a lifting mechanism is further included. The lifting mechanism is movably arranged above the pretreatment tank 1 and is used for lifting the scraping plate 8. The lifting mechanism includes a moving frame 101, a winch 102 and a lifting frame 103. The moving frame 101 is movably arranged above the pretreatment tank 1. A lead screw feeding mechanism 104 is installed on the pretreatment tank 1. The moving frame 101 is fixedly connected with the lead screw nut in the lead screw feeding mechanism 104. The winch 102 is movably arranged on the moving frame 101. An electric cylinder II 105 is installed on the moving frame 101. The winch 102 is fixedly installed at the output end of the electric cylinder II 105. A pulling rope 106 is wound around the winch 102. The lifting frame 103 is fixedly connected to the end of the pulling rope 106. A limiting ring 107 is fixedly connected to the scraping plate 8. The lifting frame 103 can extend into the inside of the limiting ring 107 as the winch 102 moves. To ensure the stability of the lifting frame 103 when it enters the limiting ring 107, the lifting frame 103 is connected to the winch 102 through a telescopic rod. The moving frame 101 can be driven by the lead screw feeding mechanism 104 to move above the pretreatment tank 1. When the grille 2 needs to be cleaned, the grille 2 to be cleaned is moved to a position close to the edge of the pretreatment tank 1, so that the scraping plate 8 is in contact with the inner wall of the pretreatment tank 1. During the movement of the grille 2, the scraping plate 8 is at the bottom of the pretreatment tank 1. The grille 2 drives the scraping plate 8 to move. The side of the scraping plate 8 away from the grille 2 is set as a tip, which can shovel up the dirt at the bottom of the pretreatment tank 1. The lead screw feeding mechanism 104 drives the moving frame 101 to move above the scraping plate 8. The winch 102 pays out the pulling rope 106. Under the action of the self-weight of the lifting frame 103 and the limiting action of the telescopic rod on the lifting frame 103, the lifting frame 103 vertically moves up and down. When the lifting frame 103 descends to the lowest position and is in close contact with the scraping plate 8, the electric cylinder II 105 drives the winch 102 to move, so that the lifting frame 103 extends into the inside of the limiting ring 107. The winch 102 winds up the pulling rope 106, driving the lifting frame 103 and the scraping plate 8 to rise. The dirt blocked by the grille 2 can be lifted from the sewage during the rising process of the scraping plate 8, so that the dirt can be cleaned up.

[0027] As Figures 1 to 9As shown, there are two dirt temporary storage bins 9. A collection port is provided on the pretreatment tank 1. The dirt temporary storage bin 9 is communicated with the pretreatment tank 1 through the collection port. A filter screen 10 is installed inside the dirt temporary storage bin 9. A pressing plate 11 is movably arranged inside the dirt temporary storage bin 9. An electric cylinder three 12 is installed on the dirt temporary storage bin 9. The pressing plate 11 is fixedly connected to the output end of the electric cylinder three 12. The bottom of the dirt temporary storage bin 9 is communicated with the pretreatment tank 1 through a return water pipe. The height of the return water pipe is higher than the height of the sewage surface in the pretreatment tank 1. A cleaning port is provided on the dirt temporary storage bin 9. The dirt temporary storage bin 9 is communicated with a waste collection box 13 through the cleaning port. A baffle 15 is connected to the inner wall of the waste collection box 13 through a compression spring 14 and a telescopic rod. The baffle 15 is in sealing sliding fit with the cleaning port. To further separate dirt and water, a heater 16 is installed inside the baffle 15. The scraper 8 rises to the collection port under the action of the winch 102, lifting the dirt to the collection port. Part of the dirt enters the inside of the dirt temporary storage bin 9 through the collection port. The dirt enters the inside of the dirt temporary storage bin 9 and falls above the filter screen 10. The filter screen 10 blocks the dirt. The electric cylinder three 12 drives the pressing plate 11 to approach the baffle 15. The pressing plate 11 and the baffle 15 cooperate to squeeze out the sewage in the dirt and pass through the filter screen 10 and flow back into the inside of the pretreatment tank 1 through the return water pipe. Initially, the baffle 15 closes the cleaning port. After the pressing plate 11 approaches the baffle 15, the compression spring 14 is pressed, pushing the baffle 15 and the squeezed dirt into the inside of the dirt collection box. The dirt in contact with the pressing plate 11 and the inside of the dirt collection box are heated by the heater 16 to further remove the moisture in the dirt. The moisture in the dirt collection box evaporates. When the baffle 15 is pushed into the dirt collection box, the moisture enters the dirt temporary storage bin 9 and flows back into the inside of the pretreatment tank 1. As the dirt accumulates between the pressing plate 11 and the baffle 15, even though there is a certain pressure between the pressing plate 11 and the baffle 15 under the action of the compression spring 14, some dirt still falls into the inside of the dirt collection box. A cleaning plate is provided on the dirt collection box. Open the cleaning plate regularly and take out the dry dirt in the dirt collection box for centralized treatment.

[0028] As Figure 3 and Figure 7As shown, the cleaning shaft 17 is rotatably and movably arranged on the scraper 8, the cleaning shaft 17 is fixedly connected with a brush rod 18, the brush rod 18 is in contact with the grille 2 and the scraper 8, one side of the top of the scraper 8 is fixedly connected with a mounting box 19, an electric cylinder 4 20 is installed inside the mounting box 19, the output end of the electric cylinder 4 20 is fixedly connected with a driving frame 21, the cleaning shaft 17 is rotatably connected to the driving frame 21, the other side of the top of the scraper 8 is fixedly connected with a support plate 22, the support plate 22 is connected to a driving box 23 through a telescopic rod, a motor 24 is installed inside the driving box 23, the motor 24 is connected to the cleaning shaft 17 through a gear set 25, and the gear set 25 is also located in the driving box 2 3, the cleaning shaft 17 and the drive box 23 are rotatably connected, and the cleaning shaft 17 and the drive box 23 can be driven to move along the scraper 8 through the electric cylinder 20, and the motor 24 drives the cleaning shaft 17 to rotate through the gear set 25, thereby driving the brush rod 18 to rotate, and the brush rod 18 cleans the side of the grille 2 that contacts the dirt. As the scraper 8 drives the cleaning shaft 17 to rise, and the electric cylinder 20 drives the cleaning shaft 17 to reciprocate, the brush rod 18 cleans the surface of the grille 2 more comprehensively, and the bottom of the brush rod 18 rotates toward the collection port. When the scraper 8 drives the cleaning shaft 17 to rise to the collection port, the cleaned dirt is pushed toward the collection port and enters the interior of the dirt temporary storage box 9.

[0029] The working principle or use process of the wastewater treatment device for tomato sauce production is as follows: The wastewater from tomato sauce production enters the water delivery pipe 6, and the two water inlet pipes 4 are opened alternately through the three-way valve 7. The wastewater enters the pretreatment tank 1 through the water inlet pipe 4. The electric cylinder 1 3 drives the grille 2 near the water inlet to move away from the water inlet pipe 4, and the other grille 2 is close to the edge of the pretreatment tank 1 so that the scraper 8 contacts the inner wall of the pretreatment tank 1. The grille 2 blocks the dirt in the sewage. The lead screw feeding mechanism 104 drives the moving frame 101 to move above the cover plate connected to the grille 2 that is not in the working state. The winch 102 pays out the pulling rope 106. Under the action of the self-weight of the lifting frame 103 and the limiting action of the telescopic rod on the lifting frame 103, the lifting frame 103 moves vertically up and down. When the lifting frame 103 descends to the lowest position and is in close contact with the scraper 8, the electric cylinder II 105 drives the winch 102 to move, so that the lifting frame 103 extends into the inside of the limiting ring 107. The winch 102 winds up the pulling rope 106, driving the lifting frame 103 and the scraper 8 to rise. During the rising process of the scraper 8, the dirt blocked by the grille 2 can be lifted from the sewage. At the same time, the electric cylinder IV 20 drives the cleaning shaft 17 to move, and the motor 24 drives the cleaning shaft 17 and the brush rod 18 to rotate to clean the grille 2 and the scraper 8. When the scraper 8 rises to the collection port, the brush rod 18 sweeps the dirt into the inside of the dirt temporary storage box 9. Then the winch 102 pays out the pulling rope 106 to make the scraper 8 fall. After falling to the lowest position, the electric cylinder II 105 drives the winch 102 to move, moving the lifting frame 103 out of the limiting ring 107, and the winch 102 drives the lifting frame 103 to rise; The electric cylinder III 12 drives the pressing plate 11 to approach the baffle 15 to squeeze the dirt above the filter screen 10. At the same time, the heater 16 heats the pressing plate 11 and the dirt. The water in the dirt is squeezed out and falls through the filter screen 10, flowing back into the inside of the pretreatment tank 1 through the return water pipe. As the pressing plate 11 squeezes the baffle 15, the baffle 15 is pushed into the inside of the dirt collection box, and part of the dirt falls into the inside of the dirt collection box; After a period of time, the three-way valve 7 controls the other water inlet pipe 4 to communicate with the water delivery pipe 6. The grille 2 after working for a period of time approaches the edge of the pretreatment tank 1, and the cleaned grille 2 moves to the middle position of the pretreatment tank 1. Then the grille 2 moved to the edge is cleaned, and the dirt in the dirt temporary storage box 9 is squeezed. The squeezed dry dirt is pushed into the inside of the dirt collection box for collection. The cleaning plate is regularly opened to clean the dirt in the dirt collection box and centralized treatment can be carried out.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limitations. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A sewage treatment device for ketchup production, comprising a pretreatment tank (1) and a grille (2), characterized in that, There are two of the grilles (2), and the grilles (2) are installed on both sides of the pretreatment tank (1). It further includes: A scraper (8), the scraper (8) is arranged on the grille (2) in a liftable manner, the scraper (8) contacts the inner wall of the grille (2) and the pretreatment tank (1), and filter holes are provided on the scraper (8); Two dirt temporary storage boxes (9) are provided. Collection ports are provided on the pretreatment tank (1). The dirt temporary storage boxes (9) communicate with the pretreatment tank (1) through the collection ports. A filter screen (10) is installed inside the dirt temporary storage boxes (9). A pressing plate (11) is movably arranged inside the dirt temporary storage boxes (9). The bottom of the dirt temporary storage boxes (9) communicates with the pretreatment tank (1); A cleaning shaft (17), the cleaning shaft (17) is rotatably arranged on the scraper (8), the cleaning shaft (17) is fixedly connected with a brush rod (18), and the brush rod (18) contacts the grille (2) and the scraper (8); There are two groups of water inlet pipes (4), and the two groups of water inlet pipes (4) communicate with both sides of the pretreatment tank (1), and the two groups of water inlet pipes (4) alternate in water inlet; A water outlet pipe (5), the water outlet pipe (5) communicates with the pretreatment tank (1), and the water outlet pipe (5) is located between the two grilles (2).

2. The sewage treatment device for ketchup production according to claim 1, characterized in that, A cleaning port is provided on the dirt temporary storage box (9). The dirt temporary storage box (9) communicates with a waste collection box (13) through the cleaning port. A baffle (15) is connected to the inner wall of the waste collection box (13) through a compression spring (14) and a telescopic rod, and the baffle (15) is in sealing sliding fit with the cleaning port.

3. The sewage treatment device for ketchup production according to claim 1, characterized in that, It further includes a lifting mechanism. The lifting mechanism is movably arranged above the pretreatment tank (1), and the lifting mechanism is used to lift the scraper (8).

4. The sewage treatment device for ketchup production according to claim 3, characterized in that, The lifting mechanism includes: A moving frame (101), the moving frame (101) is movably arranged above the pretreatment tank (1); A winch (102), the winch (102) is movably arranged on the moving frame (101), and a pulling rope (106) is wound around the winch (102); A lifting frame (103), the lifting frame (103) is fixedly connected to the end of the pulling rope (106). A limiting ring (107) is fixedly connected to the scraper (8), and the lifting frame (103) can extend into the inside of the limiting ring (107) along with the movement of the winch (102).

5. The sewage treatment device for ketchup production according to claim 4, wherein, The lifting frame (103) is connected to the winch (102) through a telescopic rod.

6. The sewage treatment device for ketchup production according to claim 1, characterized in that, The cleaning shaft (17) is movably arranged on the scraper (8).

7. A sewage treatment device for ketchup production according to claim 1, characterized in that, The grille (2) is movably arranged inside the pretreatment tank (1).

8. The sewage treatment device for ketchup production according to claim 2, characterized in that, A heater (16) is installed inside the baffle (15).

Images