Food processing wastewater treatment device

Abstract

The invention provides a food processing wastewater treatment device, and belongs to the technical field of wastewater treatment.The food processing wastewater treatment device comprises a reaction tank and a floating unit capable of ascending and descending in the reaction tank, a cavity is formed in the floating unit, and a communicating pipe is arranged in the cavity and used for injecting wastewater between the reaction tank and the floating unit; a cavity is formed in the communicating pipe, a quantitative disc is rotationally arranged in the cavity, a plurality of quantitative grooves used for containing medicaments are arrayed in the quantitative disc, when the quantitative disc rotates, the quantitative grooves sequentially pass through the interior of the communicating pipe, a plurality of inclined plates are annularly arrayed at the edge of the outer ring of the quantitative disc, and a pressing rod is hinged to the interior of the cavity; wastewater is continuously injected into the reaction tank, the floating unit moves upwards, and the chemical feeding assembly is driven to feed chemicals into the communicating pipe, so that the wastewater and the chemicals enter the reaction tank together, and the chemicals are prevented from floating on the liquid level.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a food processing wastewater treatment device. Background Art

[0002] Bread, also known as "mianbao," is a food made by grinding and heating grains (usually wheat). Wheat flour is the primary ingredient, supplemented by yeast, eggs, oil, sugar, and salt. Water is added to the dough, which is then divided, shaped, proofed, baked, and cooled to create this baked good. The wastewater generated during bread production is complex due to its high concentration of suspended solids, oil, and organic matter. To effectively address the challenges posed by these pollutants, current wastewater treatment methods generally combine physical and chemical treatments to achieve comprehensive and efficient purification. Among physical treatment methods, centrifugal separation and filtration technologies play a key role. Centrifugal separation uses high-speed rotation to generate centrifugal force, effectively separating tiny oil droplets and suspended particles from wastewater. Filtration, on the other hand, uses specialized media to intercept larger pollutants in the wastewater, reducing the burden on subsequent treatment. Chemical treatment methods focus on coagulation and sedimentation. By adding coagulants, colloidal particles and fine suspended matter in the wastewater are aggregated into larger particles, which then settle under gravity, effectively removing organic matter and some heavy metal ions.

[0003] A Chinese patent with authorization announcement number CN112456628A discloses a cooling reactor for wastewater acid-base neutralization with a slag removal function and its application, which includes a tank body, a stirring and slag removal element, a cooling water tank, a mist cooling and collection element, a quantity control addition element, an intelligent control element and a power supply; the present invention uses a reactor with a cooling function to cool the reaction medium, ensuring the safety of operation and area, and at the same time, it can also add neutralizing agents in batches and in a quantitative manner. While meeting the quantitative addition requirements, it can also ensure that the neutralizing agents fully react with the waste acid and alkali, thereby improving the treatment effect; by providing two annular sealing plates that can be interlocked, it is prevented that the acid and alkali in the tank body splash during stirring, causing the sealing ring between the tank cover and the tank body to be corroded, thereby leaking, and then leading to the occurrence of production accidents; at the same time, when the temperature in the tank body rises, the cooling channel in the annular sealing plate cools it, which can avoid aging of the sealing ring due to local temperature rise and shortening the service life of the device.

[0004] Related technologies can add neutralizing agents in batches to ensure sufficient reaction with waste acid and alkali. However, this technology cannot automatically adjust the amount of agent added based on the amount of wastewater, requiring manual control of the amount added. If the amount added is insufficient, the wastewater reaction will not be sufficient. If the amount added is too high, the amount of agent used will increase, leading to higher costs. Summary of the Invention

[0005] The purpose of the present invention is to provide a food processing wastewater treatment device, aiming to solve the problem in the prior art of a wastewater acid-base neutralization cooling reactor with a slag removal function and its application that the amount of reagent added cannot be adjusted according to the amount of wastewater.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a food processing wastewater treatment device, comprising: a reaction tank and a floating unit capable of rising and falling inside the reaction tank, a cavity being provided in the floating unit, a connecting pipe being provided in the cavity for injecting wastewater between the reaction tank and the floating unit, a quantitative disk being rotatably provided in the cavity, a plurality of quantitative grooves for accommodating medicines being arrayed on the quantitative disk, and when the quantitative disk rotates, the plurality of quantitative grooves all pass through the interior of the connecting pipe in sequence, a plurality of inclined plates are arranged in a ring array at the outer edge of the quantitative disk, a pressure rod is hinged in the cavity, an extension rod is hinged at one end of the pressure rod, and the extension rod is located between two adjacent inclined plates, a rotating column is provided in the middle of the reaction tank, a plurality of convex rings are arrayed on the rotating column, and when the convex ring moves downward relative to the pressure rod, the pressure rod will be pressed downward away from one end of the extension rod, a medicine lowering tube is provided in the cavity, the bottom of the medicine lowering tube is located at the upper surface of the quantitative disk, and when the quantitative disk rotates, the plurality of quantitative grooves all pass through the bottom of the medicine lowering tube in sequence.

[0007] A further technical solution of the present invention is that a temporary storage tank for accommodating medicines is provided above the floating unit, the temporary storage tank has a lowest point, and the top of the lower medicine tube is connected to the temporary storage tank and is flush with the lowest point.

[0008] A further technical solution of the present invention is that the floating unit is in sealed contact with the reaction tank, the floating unit is provided with a receiving groove, the interior of the receiving groove is provided with a tonic cartridge that slides up and down, the top of the tonic cartridge is connected to the temporary storage groove, a counterweight part and a floating part are provided at one end of the tonic cartridge located inside the receiving groove, the floating part is located above the counterweight part, the temporary storage groove is provided with a piston component that slides inside the tonic cartridge, a limiting protrusion is provided on the top of the tonic cartridge, when the limiting protrusion contacts the bottom wall of the temporary storage groove, the piston component is pulled out of the tonic cartridge, and there is a gap between the two for the medicine to enter the tonic cartridge.

[0009] A further technical solution of the present invention is that an exhaust pipe is provided in the cavity and passes through the upper and lower sides of the floating unit, a sealing cover is provided on the upper surface of the floating unit, a second elastic member is provided on the floating unit so that the sealing cover always covers the exhaust pipe, a sealing magnet is provided around the sealing cover, and a magnetic member that can adapt to the magnet is provided on the exhaust pipe. When the magnet and the magnetic member are attracted to each other, the sealing cover can seal the through hole.

[0010] A further technical solution of the present invention is that an extension tube is vertically arranged inside the cavity, the extension tube is integrally formed with the floating unit, the rotating column can rotate inside the extension tube, and a first elastic member is provided at one end of the pressure rod, which can push the pressure rod away from one end of the extension rod and close to the extension tube.

[0011] A further technical solution of the present invention is that the connecting pipe is provided with a one-way valve below the floating unit, and wastewater can only enter the interior of the reaction tank through the connecting pipe. A liquid inlet component is provided at one end of the connecting pipe away from the one-way valve.

[0012] A further technical solution of the present invention is that the inner bottom wall of the reaction tank is provided with a flange, and when the floating unit is located at the bottom end of the reaction tank, it can be against the top of the flange, and a stirring structure is provided between the floating unit and the inner bottom wall of the reaction tank, and the rotating column can drive the stirring structure to rotate.

[0013] A further technical solution of the present invention is that the higher end of the inclined plate partially overlaps with the lower end of the adjacent inclined plate from a top view, and when one end of the extension rod moves downward, the extension rod rotates relative to the pressure rod, so that the extension rod passes from the top of the inclined plate to the bottom of the inclined plate.

[0014] A further technical solution of the present invention is that the counterweight portion is located below the wastewater level.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By continuously injecting wastewater into the interior of the reaction tank, the floating unit moves upward, and the dosing component is driven to inject the agent into the interior of the connecting pipe, so that the wastewater and the agent enter the reaction tank together, preventing the agent from floating on the liquid surface.

[0016] 2. The floating unit moves upward, driving the dosing assembly to move so that the dosing assembly can dosing in a quantitative manner according to the height of the liquid level, thereby avoiding the situation where it is difficult for humans to control the amount of medicine being dosed and avoiding waste of medicine.

[0017] 3. When wastewater reacts with specific reagents (such as oxidants) to produce gas, the generation of gas can be used to determine whether the reaction is complete. If the reaction is not complete, further reagents can be added to the wastewater through the replenishment unit to allow the wastewater to react fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention; Figure 2 It is an axonometric cross-sectional view of a specific embodiment of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure at center A; Figure 4 for Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 5 This is a schematic diagram of the installation structure of the quantitative disk in a specific embodiment of the present invention; Figure 6 This is a schematic structural diagram of a stirring structure in a specific embodiment of the present invention; Figure 7 This is a schematic structural diagram of a floating unit in a specific embodiment of the present invention; Figure 8 is a cross-sectional view of a floating unit according to a specific embodiment of the present invention; Figure 9 This is a schematic diagram of the connection between the compression rod and the extension rod in a specific embodiment of the present invention.

[0019] In the figure: 1. reaction tank; 11. flange; 2. floating unit; 21. cavity; 22. connecting pipe; 23. one-way valve; 24. temporary storage tank; 25. drug feeding pipe; 26. receiving tank; 3. dosing assembly; 31. quantitative disk; 32. quantitative tank; 4. liquid inlet component; 5. drug feeding assembly; 51. inclined plate; 52. pressure rod; 53. extension rod; 54. rotating column; 55. convex ring; 56. first elastic member; 57. extension tube; 6. drug supplement unit; 61. drug supplement cylinder; 62. counterweight part; 63. floating part; 64. piston component; 65. exhaust unit; 66. sealing cover; 67. exhaust pipe. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-9The present invention provides the following technical solution: a food processing wastewater treatment device, a reaction tank 1, a floating unit 2, a dosing component 3, a liquid inlet component 4 and a drug application component 5, wherein the dosing component 3, the liquid inlet component 4 and the drug application component 5 are arranged in a circular array on the floating unit 2 in multiple groups, and the liquid inlet component 4 is installed on the reaction tank 1 to add wastewater to the interior of the reaction tank 1. The floating unit 2 is installed inside the reaction tank 1, and the floating unit 2 can be driven to move upward by the continuous rise of the wastewater liquid level. During the upward movement of the floating unit 2, the drug application component 5 quantitatively transports a drug (solid drug, such as a flocculant, an acid-base neutralizing drug) to the dosing component 3 according to the rising height of the floating unit 2, and then the drug is added to the liquid inlet component 4 through the dosing component 3, and the drug is flushed into the reaction tank 1 together with the wastewater for reaction.

[0022] See also Figure 1 and Figure 6 , wherein multiple reaction tanks 1 are arranged side by side, a liquid inlet is provided on the top of each reaction tank 1, and a liquid outlet is provided on the bottom. The liquid inlet component 4 is connected to the liquid inlet. The liquid inlet component 4 is a hose, which is used to transport liquid between the inner bottom wall of the reaction tank 1 and the floating unit 2. The liquid outlet is located between the floating unit 2 and the inner bottom wall of the reaction tank 1, and is used to discharge the liquid in the reaction tank 1 after the reaction is completed.

[0023] In addition, in order to make the reagent react with the wastewater as quickly as possible, a stirring structure is provided in the reaction tank 1. The stirring structure is conventional technology for those skilled in the art, and the specific structure is not described in detail.

[0024] See also Figure 2 and Figure 7 The interface shape of the floating unit 2 is adapted to the cross-sectional shape of the reaction tank 1, and it can move up and down on the inner wall of the reaction tank 1. A flange 11 is provided on the inner bottom wall of the reaction tank 1. When the floating unit 2 is located at the bottom of the reaction tank 1, it can abut against the top of the flange 11, thereby limiting the position of the floating unit 2 and preventing the floating unit 2 from falling to the bottom of the reaction tank 1 and interfering with the stirring structure.

[0025] The floating unit 2 is made of a lightweight material, specifically hard plastic, and a cavity 21 is provided inside the floating unit 2. Due to the material properties of the floating unit 2 and the setting of the cavity 21, the floating unit 2 can float on the liquid surface of the wastewater and can move up and down synchronously inside the reaction tank 1 following the rise and fall of the liquid level.

[0026] See also Figure 3A connecting pipe 22 is vertically provided in the cavity 21 of the floating unit 2. The connecting pipe 22 runs through the upper and lower sides of the floating unit 2, so that the upper space of the floating unit 2 is connected to the lower space of the floating unit 2. The liquid inlet component 4 is connected to the connecting pipe 22, so that wastewater can enter the lower space of the floating unit 2, that is, between the floating unit 2 and the inner bottom wall of the reaction tank 1, through the liquid inlet component 4 and the connecting pipe 22 in sequence. A one-way valve 23 is provided at one end of the connecting pipe 22 below the floating unit 2 (the one-way valve 23 is relatively common in the art, and the specific structure is not repeated here). This ensures that wastewater can only enter the interior of the reaction tank 1 through the connecting pipe 22 and cannot enter the connecting pipe 22 from the reaction tank 1, thereby preventing water from flowing back.

[0027] See also Figure 3 、 Figure 5 and Figure 8 The dosing assembly 3 is arranged in the cavity 21, including a quantitative disk 31. The quantitative disk 31 rotates in the cavity 21 and fits with the bottom wall of the cavity 21. Its rotation axis is perpendicular to the ground. Part of the cross section of the connecting pipe 22 is covered at the inner circle of the quantitative disk 31. That is to say, part of the cross section of the connecting pipe 22 coincides with part of the cross section of the quantitative disk 31. In the overlapping area of the connecting pipe 22 and the quantitative disk 31, the connecting pipe 22 is arranged in a groove, so that the quantitative disk 31 is stuck in the groove and slides and rotates inside the groove, thereby avoiding leakage of wastewater from the overlapping area of the connecting pipe 22 and the quantitative disk 31. A plurality of quantitative grooves 32 are arranged in a ring array with its rotation axis on the quantitative disk 31. The quantitative grooves 32 pass through the upper and lower sides of the quantitative disk 31, and one of the quantitative grooves 32 is located in the overlapping area of the connecting pipe 22 and the quantitative disk 31. When the quantitative disk 31 rotates, multiple quantitative grooves 32 pass through the overlapping area of the connecting pipe 22 and the quantitative disk 31 in sequence. When there is medicine inside the quantitative groove 32, the rotation of the quantitative disk 31 can bring the medicine into the connecting pipe 22. When wastewater is added to the connecting pipe 22, the wastewater passes through the quantitative groove 32 and can bring the medicine in the quantitative groove 32 into the reaction tank 1 for reaction. The medicine is directly flushed into the reaction tank 1 through the wastewater, so that the wastewater can be directly mixed with the medicine. At the same time, the problem of the medicine floating on the liquid surface of the wastewater is avoided.

[0028] See also Figure 4-Figure 9In order to add medicine into the quantitative tank 32, the medicine feeding assembly 5 includes a temporary storage tank 24 located above the floating unit 2. The temporary storage tank 24 is used to temporarily store medicine. The temporary storage tank 24 has a lowest point, and the medicine can slide to the lowest point of the temporary storage tank 24 through the inclined surface. A medicine lowering pipe 25 is vertically arranged in the cavity 21. The top of the medicine lowering pipe 25 is connected to the temporary storage tank 24 and is flush with the lowest point. The bottom of the medicine lowering pipe 25 extends to the upper surface of the quantitative disk 31 and covers one of the quantitative tanks 32, so that the medicine can fall evenly into the quantitative tank 32 from the medicine lowering pipe 25 by gravity. There are multiple inclined plates 51 in a circular array at the outer edge of the quantitative disk 31. The higher end of the inclined plate 51 partially overlaps with the lower end of the adjacent inclined plate 51 in the top view. When one end of the extension rod 53 moves downward, the extension rod 53 rotates relative to the pressure rod 52, so that the extension rod 53 passes from the top of the inclined plate 51 to the bottom of the inclined plate 51. A pressure rod 52 is provided inside the cavity 21, and a protrusion is provided at the bottom of the cavity 21. The middle part of the pressure rod 52 rotates on the protrusion. The end of the pressure rod 52 close to the inclined plate 51 is hinged to the extension rod 53, and its hinge axis is located on one side above the pressure rod 52 and the extension rod 53. When the pressure rod 52 and the extension rod 53 are in the same position, the pressure rod 52 and the extension rod 53 are in the same position. When they are in the same plane, since the ends of the extension rod 53 and the pressure rod 52 that are close to each other abut against each other, the extension rod 53 can only rotate upward relative to the pressure rod 52, and the extension rod 53 is located below the inclined plate 51. Through the principle of leverage, when one end of the extension rod 53 moves upward, the extension rod 53 can contact the lower surface of the inclined plate 51 and push the inclined plate 51 to move through the inclined surface of the inclined plate 51, thereby driving the quantitative disk 31 to rotate in the cavity 21. A rotating column 54 is rotatably provided in the middle of the reaction tank 1. A plurality of convex rings 55 are axially arrayed on the rotating column 54. The end of the pressure rod 52 away from the extension rod 53 is located between two adjacent convex rings 55; When the amount of wastewater inside the reaction tank 1 continues to increase, the floating unit 2 drives the pressure rod 52 to move upward. Since the rotating column 54 can only rotate inside the reaction tank 1, the convex ring 55 will press one end of the pressure rod 52 downward when the pressure rod 52 moves upward relative to the rotating column 54, and the extension rod 53 is moved upward through the lever principle, so that the extension rod 53 can rotate the quantitative disk 31 through the inclined plate 51. When the quantitative disk 31 rotates, the quantitative tank 32 filled with the medicine can be transported to the connecting pipe 22.

[0029] A first elastic member 56 is provided at the end of the pressure rod 52 away from the extension rod 53. This first elastic member 56 is a compression spring. An extension tube 57 is also vertically provided inside the cavity 21. The extension tube 57 is coaxially arranged with the rotating column 54 and enables the rotating column 54 to rotate within the extension tube 57. The top of the extension tube 57 is integrally formed with the floating unit 2, and a gap is formed between the bottom and the inner bottom wall of the floating unit 2. When the protruding ring 55 moves downward relative to the pressure rod 52, it presses down on one end of the pressure rod 52 and compresses the first elastic member 56. As the angle of the pressure rod 52 continuously changes and it passes over the protruding ring 55 that abuts it, the action of the first elastic member 56 instantly resets the pressure rod 52 and instantly contacts the bottom of the extension tube 57, that is, instantly impacts the extension tube 57, causing the extension tube 57 and the floating unit 2 connected to it to generate slight vibrations, thereby promoting the sliding of the medicine in the temporary storage tank 24 to the lowest point of the temporary storage tank 24, making it easier for the medicine to enter the lower medicine tube 25.

[0030] The rotating column 54 is connected to the stirring structure. When the rotating column 54 rotates, it can drive the stirring structure to rotate and stir the wastewater.

[0031] See also Figure 3 、 Figure 7 and Figure 8 The concentration of the wastewater injected into the reaction tank 1 is not fixed, and the dosage of the drug in the wastewater after the liquid level rises to a specified height is also fixed. When the wastewater concentration is relatively high, the dosage is insufficient for the wastewater to react completely. Therefore, a drug supplement unit 6 is provided on the floating unit 2. Since gas is generated when the wastewater reacts with the drug, for example, hydrogen peroxide is generated when the oxidant reacts with the wastewater, when the reaction between the wastewater and the drug stops, the gas stops being generated. The drug supplement unit 6 can supplement the wastewater with the generated gas, so that the wastewater can react fully.

[0032] See also Figure 3 、 Figure 7 and Figure 8The tonic unit 6 includes a receiving tank 26 provided below the floating unit 2. The floating unit 2 is in sealed contact with the inner wall of the reaction tank 1. A tonic cartridge 61 is provided inside the receiving tank 26. The tonic cartridge 61 can slide up and down inside the receiving tank 26. The tonic cartridge 61 passes through the receiving tank 26 to the temporary storage tank 24 above the floating unit 2, and the tonic cartridge 61 is connected to the temporary storage tank 24. A counterweight portion 62 is provided at one end of the tonic cartridge 61 located inside the receiving tank 26. The counterweight portion 62 is located below the wastewater liquid level. A floating portion 63 is provided above the counterweight portion 62. The floating portion 63 is formed by A sealed chamber is formed so that the float 63 can float above the liquid surface of the wastewater. When the float unit 2 floats on the liquid surface of the wastewater, the float 63 is located inside the receiving tank 26, and the counterweight 62 is located below the liquid surface of the wastewater. A piston component 64 is fixed to the temporary storage tank 24. The piston component 64 slides inside the tonic medicine cartridge 61. A limiting protrusion is provided on the top of the tonic medicine cartridge 61. When the limiting protrusion moves downward until it contacts the bottom wall of the temporary storage tank 24, the piston component 64 is withdrawn from the tonic medicine cartridge 61, and a gap is formed between the piston component 64 and the tonic medicine cartridge 61 for the medicine to enter the tonic medicine cartridge 61. When the medicine reacts with the wastewater to produce gas, the generated gas will push the floating unit 2 to move upward due to the sealed contact between the floating unit 2 and the reaction tank 1. During the upward movement, due to the setting of the counterweight part 62, the height of the medicine-replenishing cylinder 61 remains unchanged, and the piston component 64 located on the floating unit 2 moves upward relative to the medicine-replenishing cylinder 61 until a gap is created between the piston component 64 and the medicine-replenishing cylinder 61 so that the medicine can enter the medicine-replenishing cylinder 61, and then the medicine enters the interior of the medicine-replenishing cylinder 61 under the gravity of the medicine itself.

[0033] See also Figure 7 and Figure 8 Next, how the medicine that falls into the replenishing medicine cartridge 61 enters the interior of the reaction tank 1 is described. An exhaust unit 65 is provided on the upper surface of the floating unit 2. The exhaust unit 65 includes an exhaust pipe 67. The exhaust pipe 67 runs through the upper and lower sides of the floating unit 2, so that the upper space and the lower space of the floating unit 2 are connected through the exhaust pipe 67. A sealing cover 66 is provided on the upper surface of the floating unit 2. One side of the sealing cover 66 is connected to the floating unit 2 through a second elastic member. The second elastic member is a rubber with high resilience, so that the sealing cover 66 always covers the top of the exhaust pipe 67 without being affected by external forces. A sealing magnet is provided around the sealing cover 66, and a magnetic member that can adapt to the magnet is provided around the top of the exhaust pipe 67. When the magnet and the magnetic member are attracted to each other, the sealing cover 66 can seal the through hole. When the reagent reacts with the wastewater to produce gas, due to the setting of the sealing cover 66 and the setting of the one-way valve 23 on the connecting pipe 22, the reacting gas only exists below the floating unit 2, thereby pushing the floating unit 2 to move upward, so that the reagent falls into the replenishing medicine cylinder 61. When the floating unit 2 continues to move upward, under the action of the limiting protrusion above the replenishing medicine cylinder 61, it drives the replenishing medicine cylinder 61 to move upward. The replenishing medicine cylinder 61 is connected to the counterweight part 62. Since the counterweight part 62 gradually floats to the surface, it indirectly increases the gravity of the floating unit 2. Therefore, it is necessary to require greater pressure to push the floating unit 2 upward. When the pressure reaches a certain threshold, it can overcome the adsorption force between the sealing magnet and the magnetic conductive part (or magnetic part / armature), and instantly push the sealing cover 66 open, so that the floating unit 2 The upper space of unit 2 is connected to the lower space. The floating unit 2 moves downward by its own gravity and discharges the gas in the lower space from the exhaust pipe 67. When the floating unit 2 moves downward, the piston component 64 re-enters the interior of the replenishing medicine cartridge 61 and pushes the medicine in the replenishing medicine cartridge 61 into the wastewater through air pressure (syringe principle). The counterweight 62 is located below the liquid surface, so that the medicine in the replenishing medicine cartridge 61 is directly pushed below the wastewater liquid surface, thereby avoiding the situation where the medicine floats on the liquid surface and is difficult to fully react. Afterwards, the second elastic member drives the sealing cover 66 to reset, so that the sealing cover 66 re-seals the exhaust pipe 67. If gas is still generated, the above steps are repeated multiple times until the wastewater and the medicine react completely and the gas stops being generated.

Claims

1. Food processing wastewater treatment equipment, including: A reaction tank (1) and a floating unit (2) capable of being raised and lowered inside the reaction tank (1), wherein a cavity (21) is provided in the floating unit (2), characterized in that a connecting pipe (22) is provided in the cavity (21) for injecting wastewater between the reaction tank (1) and the floating unit (2), a quantitative disk (31) is rotatably provided in the cavity (21), a plurality of quantitative grooves (32) for accommodating pharmaceutical agents are arranged on the quantitative disk (31), and when the quantitative disk (31) rotates, the plurality of quantitative grooves (32) all pass through the interior of the connecting pipe (22) in sequence, a plurality of inclined plates (51) are arranged in an annular array at the outer edge of the quantitative disk (31), and a hinged plate (51) is provided in the cavity (21). A pressure rod (52) is hingedly connected to an extension rod (53) at one end of the pressure rod (52), and the extension rod (53) is located between two adjacent inclined plates (51). A rotating column (54) is provided in the middle of the reaction tank (1), and a plurality of convex rings (55) are arrayed on the rotating column (54). When the convex ring (55) moves downward relative to the pressure rod (52), it presses the pressure rod (52) downward away from one end of the extension rod (53). A lower medicine tube (25) is provided in the cavity (21), and the bottom opening of the lower medicine tube (25) is located at the upper surface of the quantitative disk (31), so that when the quantitative disk (31) rotates, the plurality of quantitative slots (32) pass through the bottom of the lower medicine tube (25) in sequence.

2. The food processing wastewater treatment device according to claim 1, characterized in that: A temporary storage tank (24) for accommodating medicine is provided above the floating unit (2). The temporary storage tank (24) has a lowest point. The top of the lower medicine tube (25) is connected to the temporary storage tank (24) and is flush with the lowest point.

3. The food processing wastewater treatment device according to claim 2, characterized in that: The floating unit (2) is in sealed contact with the reaction tank (1). The floating unit (2) is provided with a receiving groove (26). A medicine replenishing cylinder (61) that slides up and down is provided inside the receiving groove (26). The top of the medicine replenishing cylinder (61) is connected to the temporary storage groove (24). A counterweight portion (62) and a floating portion (63) are provided at one end of the medicine replenishing cylinder (61) located inside the receiving groove (26). The floating portion (63) is located above the counterweight portion (62). A piston component (64) that slides inside the medicine replenishing cylinder (61) is provided on the temporary storage groove (24). A limiting protrusion is provided on the top of the medicine replenishing cylinder (61). When the limiting protrusion contacts the bottom wall of the temporary storage groove (24), the piston component (64) is drawn out of the medicine replenishing cylinder (61), and a gap is provided between the two for the medicine to enter the medicine replenishing cylinder (61).

4. The food processing wastewater treatment device according to claim 3, characterized in that: An exhaust pipe (67) is provided in the cavity (21) and passes through the upper and lower sides of the floating unit (2). A sealing cover (66) is provided on the upper surface of the floating unit (2). A second elastic member is provided on the floating unit (2) so that the sealing cover (66) always covers the exhaust pipe (67). A sealing magnet is provided around the sealing cover (66). A magnetic member capable of matching with the magnet is provided on the exhaust pipe (67). When the magnet and the magnetic member are attracted to each other, the sealing cover (66) can seal the through hole.

5. The food processing wastewater treatment device according to claim 1, characterized in that: An extension tube (57) is also vertically provided inside the cavity (21), and the extension tube (57) is integrally formed with the floating unit (2). The rotating column (54) can rotate inside the extension tube (57), and a first elastic member (56) is provided at one end of the pressure rod (52). The first elastic member (56) can push the pressure rod (52) away from one end of the extension rod (53) and close to the extension tube (57).

6. The food processing wastewater treatment device according to claim 1, characterized in that: The connecting pipe (22) is located below the floating unit (2) and is provided with a one-way valve (23). Wastewater can only enter the interior of the reaction tank (1) through the connecting pipe (22). A liquid inlet component (4) is provided at one end of the connecting pipe (22) away from the one-way valve (23).

7. The food processing wastewater treatment device according to claim 1, characterized in that: The inner bottom wall of the reaction tank (1) is provided with a flange (11); when the floating unit (2) is located at the bottom end of the reaction tank (1), it can abut against the upper part of the flange (11); a stirring structure is provided between the floating unit (2) and the inner bottom wall of the reaction tank (1); and the rotating column (54) can drive the stirring structure to rotate.

8. The food processing wastewater treatment device according to claim 1, characterized in that: The higher end of the inclined plate (51) partially overlaps with the lower end of the adjacent inclined plate (51) in a top view. When one end of the extension rod (53) moves downward, the extension rod (53) rotates relative to the pressure rod (52), so that the extension rod (53) passes from above the inclined plate (51) to below the inclined plate (51).

9. The food processing wastewater treatment device according to claim 3, characterized in that: The counterweight portion (62) is located below the wastewater level.

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