Food processing sewage treatment equipment and treatment method

Abstract

The invention belongs to the technical field of sewage treatment equipment, and provides food processing sewage treatment equipment and method.The equipment comprises a shell, two sets of partition plates are fixedly installed in the shell, located on the inner bottom face of the shell and distributed at intervals to form a channel, and a supporting plate is fixedly installed on the shell; a communication box is fixedly mounted on the supporting plate, and a rotating pipe is rotatably mounted on the communication box, so that the technical problem that protein is difficult to comprehensively collect due to the fact that the protein returns to sewage again during collection in the prior art is solved; and the intercepted and filtered particulate matters are adsorbed on the filter cloth, and in the cleaning process, the particulate matters are always located above the filter cloth, so that the particulate matters on the filter cloth are prevented from being separated and entering the shell again in the rotating process of the rotating frame, and the device can be widely applied to cleaning operation scenes of substances in sewage.

Description

Technical Field

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

[0002] There are many types of food processing, including meat processing. Meat processing is usually accompanied by steaming. The wastewater generated at this time will contain a large amount of protein, organic acid and carbohydrates. At the same time, the wastewater from meat processing plants contains a large amount of blood, oil and other substances. The water quality of these wastewaters is thick and changeable, and the concentration of suspended matter is very high. Direct discharge will seriously damage the environment and pollute water sources. The protein in this wastewater, as a nutrient, can be recycled and reused.

[0003] Salting out refers to adding neutral salt to a protein aqueous solution. As the salt concentration increases, the protein accumulates in the form of particles and precipitates. In the common salting out reaction device for separating protein from solution, when the wastewater is fully salted out, it is necessary to pass the liquid in the reaction device into a filtering device for filtration to collect the protein. As a result, the reaction device needs to be shut down when collecting the protein, affecting the work efficiency. In response to the above technical problems, the applicant has retrieved some prior art, such as the Chinese patent with patent announcement number CN117361666B, which collects protein particles in sewage through a rotating net bag during use. However, when the net bag is rotated to a state with the opening facing downward, the protein particles in the net bag will fall out of the net bag under the action of gravity, causing the collected protein particles to re-enter the sewage, making it difficult to completely collect the protein precipitated in the sewage, thereby reducing the protein collection effect. Summary of the invention

[0004] The purpose of the present invention is to provide a food processing wastewater treatment device and a treatment method, aiming to solve the technical problem in the prior art that proteins will return to the wastewater during collection, making it difficult to fully collect the proteins.

[0005] The present invention is implemented as follows: a food processing wastewater treatment device comprises a shell, two groups of baffles are fixedly installed in the shell, the two groups of baffles are located on the inner bottom surface of the shell and are spaced apart to form a channel, a support plate is fixedly installed on the shell, a connecting box is fixedly installed on the support plate, a rotating pipe is rotatably installed on the connecting box, the rotating pipe extends into the connecting box, and a second rotating power member that drives the rotating pipe to rotate is fixedly installed on the connecting box; A plurality of mounting frames distributed in a circular array around the axis of the rotating tube are fixedly installed on the rotating tube, and when the rotating tube rotates, two side surfaces of the mounting frame are respectively in sliding contact with two groups of partitions, and a filter cloth with a conveyor belt structure is rotatably installed in the mounting frame through two groups of mounting shafts, and a gap is provided between the end of the filter cloth close to the rotating tube and the rotating tube, and a scraper and a baffle are fixedly installed on the end of the mounting frame close to the rotating tube, and the scraper and the surface of the filter cloth for retaining particles are in sliding contact, and the baffle and the scraper are provided with parallel sections and the two and the mounting frame form a material discharge channel, and a first blowing chamber is fixedly installed on the end of the baffle away from the rotating tube, and a plurality of groups of through holes distributed at intervals are provided on the side of the first blowing chamber close to the material discharge channel, and the first blowing chamber is connected with the rotating tube and an air pump for conveying gas into the connecting box is fixedly installed on the support plate; The shell is provided with a collecting cylinder extending into the interval between the plurality of filter cloth groups and the rotating tube, the support plate is provided with a power component for driving the mounting shaft to rotate within a set range, and the shell is provided with a stirring component.

[0006] Further technical solution: a second blowing chamber is fixedly installed in the mounting frame, and a plurality of blowing pipes are fixedly installed on the surface of the second blowing chamber close to the first blowing chamber. The extension lines of the blowing pipes point to the entrance of the unloading channel formed by the baffle and the scraper, and the second blowing chamber is connected to the rotating tube.

[0007] Further technical solution: the rotating tube is connected to a plurality of connecting tubes, and the connecting tubes are connected to the first blowing chamber and the second blowing chamber on the corresponding mounting frame.

[0008] Further technical solution: the cross-section of the collecting cylinder is an annular structure, one end of the collecting cylinder is an open structure and a cover plate is threadedly connected to the open end, a collecting groove is opened on the side wall of the collecting cylinder, a mounting plate is fixedly installed on the cover plate, and the mounting plate is slidably connected to the limit groove fixedly installed on the side of the shell.

[0009] Further technical solution: A plurality of groups of guide plates are fixedly installed in the area corresponding to the collecting groove in the collecting cylinder, and the guide plates are distributed along the radial direction of the collecting cylinder, and the plurality of groups of guide plates are distributed at intervals.

[0010] Further technical solution: the power assembly includes a friction wheel, which is fixedly mounted on a mounting shaft away from the rotating tube. The friction wheel is located at one end of the mounting shaft and a slot for mounting the friction wheel is provided on the side of the mounting frame. The outer side surface of the friction wheel is flush with the outer side surface of the mounting frame, and the friction wheel is in rolling contact with a friction plate fixedly mounted on the support plate.

[0011] Further technical solution: the friction plate is an arc-shaped structure and the center of the circle where the friction plate is located is located on the axis of the rotating tube, and the friction plate is located in the opening area of ​​the collecting tank.

[0012] Further technical solution: The stirring assembly includes a first rotating shaft, which is rotatably mounted on the inner wall of the shell and located between two sets of partitions, a spiral blade is fixedly mounted on the first rotating shaft, and a first rotating power component that drives the first rotating shaft to rotate is fixedly mounted on the outside of the shell, a liquid pushing tube coaxially arranged with the first rotating shaft is fixedly mounted in the shell, the spiral blade is located in the liquid pushing tube, and a gap is set between the end of the liquid pushing tube and the inner wall of the shell.

[0013] Further technical solution: The stirring assembly also includes two groups of second rotating shafts, which are rotatably installed in the shell and parallel to the first rotating shaft. The two groups of second rotating shafts are located on the outsides of the two groups of partitions. Multiple groups of stirring rods distributed at intervals are fixedly installed on the second rotating shafts, and the two groups of second rotating shafts are rotatably connected to the first rotating shaft.

[0014] The present invention also provides a method for treating food processing wastewater, which is applied to the above-mentioned food processing wastewater treatment equipment, and comprises the following steps: Step S1: installing the collecting cylinder on the shell, adding sewage and inorganic salt solution into the shell to a set liquid level, and stirring the sewage in the shell by a stirring component; Step S2: The sewage in the housing is allowed to circulate through the channels formed by the partitions by means of the stirring assembly, and at the same time, the second rotating power member and the rotating tube drive the multiple groups of mounting frames to rotate so that the filter cloth intercepts and collects the particles in the sewage; Step S3: As the mounting frame rotates, the filter cloth is rotated out of the sewage, and the particles are located on the upper surface of the filter cloth. When the mounting frame rotates to a horizontal state and continues to rotate, the mounting shaft rotates under the action of the power assembly, thereby driving the filter cloth itself to rotate; Step S4: When the extension line of the filter cloth surface enters the collecting tank, the position where the filter cloth contacts the sewage liquid surface moves to the contact position between the scraper and the filter cloth. As the filter cloth continues to rotate, the particles on the filter cloth are scraped off by the scraper. At the same time, the gas in the communication box enters the first blowing chamber and then blows through the through hole into the feeding channel formed by the scraper and the baffle. The particles scraped off by the scraper are blown to the collecting cylinder by the high-speed flowing air. Step S5: After the collection is completed, remove the collection tube for cleaning.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The rotating tube drives multiple groups of filter cloths to revolve to intercept and filter the particles. The intercepted and filtered particles are adsorbed on the filter cloth. After the filter cloth leaves the sewage, the filter cloth itself rotates and then the particles on the filter cloth are cleaned by high-speed air and scrapers. During the cleaning process, the particles are always located above the filter cloth, thereby preventing the particles on the filter cloth from detaching and entering the shell again during the rotation of the rotating frame, improving the collection effect of the particles, and realizing the comprehensive collection of protein. The discharge channel and the guide plate can further increase the probability of particles entering the collection barrel, further improving the collection effect of the particles.

[0016] 2. When the extension line of the filter cloth surface leaves the collecting tank, the filter cloth itself no longer rotates. When the rotating tube continues to rotate and the group of filter cloths enters the sewage again, the part of the filter cloth that intercepts the particles is the part that did not intercept the particles last time, that is, the positions of the two parts of the filter cloth are swapped. In the interception process, when the sewage passes through the rear layer of filter cloth, the particles remaining on the layer of filter cloth can be washed down, and the washed down particles continue to move with the sewage, and can be intercepted and collected again later, thereby reducing the residual particles on the filter cloth, further improving the collection capacity of particles, and improving the collection capacity of sewage.

[0017] 3. The air in the second blowing chamber is blown out through the blowing pipe, and the air blown out of the blowing pipe blows toward the filter cloth. Since the extension line of the blowing pipe points to the entrance of the feeding channel formed by the baffle and the scraper, the filter cloth can be closely attached to the scraper under the action of the air. At the same time, the air will pass through the filter cloth to blow the particles attached to the filter cloth upward, and the blown particles enter the feeding channel, thereby improving the cleaning effect of the particles on the filter cloth and reducing the residual particles on the filter cloth.

[0018] 4. When the first rotating shaft drives the spiral blade to rotate, it will push the sewage to flow, so that the sewage in the shell will move from between the two groups of partitions and then flow back from the outside of the partition to realize the circulation of sewage. After the particles are generated in the sewage, they will move with the sewage, so that the generated particles will flow from the channel between the two groups of partitions, and then the filter cloth can intercept and filter a large number of particles when it moves between the two groups of partitions. The filter cloth is rotated by the rotating tube to circulate in the channel between the partitions. With the particles following the circulation of sewage, the particles in the sewage can be fully filtered and collected, further reducing the content of residual particles in the sewage and improving the sewage treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the stirring assembly in the present invention.

[0021] Figure 3 It is a structural schematic diagram of the mounting frame in the present invention.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of the A1 region in the middle.

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the filter cloth in the present invention.

[0024] Figure 6 for Figure 5 A magnified schematic diagram of the A2 region in the middle.

[0025] Figure 7 for Figure 6 A magnified schematic diagram of the A3 region in the middle.

[0026] Figure 8 It is a schematic diagram of the structure inside the communication box in the present invention.

[0027] Fig. 9 It is a schematic diagram of the structure of the collecting tube in the present invention.

[0028] Fig.10 It is a schematic diagram of the cross-sectional structure of the collecting tube in the present invention.

[0029] In the accompanying drawings: 1. shell; 2. partition; 3. first rotating shaft; 4. spiral blade; 5. liquid pushing tube; 6. second rotating shaft; 7. stirring rod; 8. first rotating power part; 9. support plate; 10. connecting box; 11. rotating tube; 12. mounting frame; 13. second rotating power part; 14. filter cloth; 15. mounting shaft; 16. scraper; 17. baffle; 18. first blowing chamber; 19. through hole; 20. second blowing chamber; 21. blowing pipe; 22. collecting cylinder; 23. collecting tank; 24. guide plate; 25. cover plate; 26. mounting plate; 27. limiting groove; 28. air pump; 29. ​​connecting pipe; 30. friction wheel; 31. friction plate; 32. stirring assembly; 33. power assembly. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] like Figure 1-Figure 10As shown, a food processing wastewater treatment device provided by the present invention comprises a housing 1, two groups of baffles 2 are fixedly installed in the housing 1, the two groups of baffles 2 are located on the inner bottom surface of the housing 1 and are spaced apart to form a channel, a support plate 9 is fixedly installed on the housing 1, a connecting box 10 is fixedly installed on the support plate 9, a rotating tube 11 is rotatably installed on the connecting box 10, one end of the rotating tube 11 away from the connecting box 10 is in a closed state, the rotating tube 11 extends into the connecting box 10, and a second rotating power member 13 that drives the rotating tube 11 to rotate is fixedly installed on the connecting box 10; A plurality of mounting frames 12 are fixedly mounted on the rotating tube 11 and are distributed in a circular array around the axis thereof. When the rotating tube 11 rotates, two side surfaces of the mounting frame 12 are in sliding contact with two groups of partitions 2 respectively. A filter cloth 14 with a conveyor belt structure is rotatably mounted in the mounting frame 12 through two groups of mounting shafts 15. An interval is provided between the end of the filter cloth 14 close to the rotating tube 11 and the rotating tube 11. A scraper 16 and a baffle 17 are fixedly mounted on the end of the mounting frame 12 close to the rotating tube 11. The scraper 16 is in sliding contact with the surface of the filter cloth 14 retaining particles. The baffle 17 and the scraper 16 are provided with parallel sections and the two and the mounting frame 12 form a material discharge channel. A first blowing chamber 18 is fixedly mounted on the end of the baffle 17 away from the rotating tube 11. A plurality of through holes 19 are provided on the side of the first blowing chamber 18 close to the material discharge channel. The first blowing chamber 18 is connected to the rotating tube 11 and an air pump 28 for conveying gas into the connecting box 10 is fixedly mounted on the support plate 9. The shell 1 is provided with a collecting cylinder 22 extending into the gap between the multiple groups of filter cloths 14 and the rotating tube 11. The cross-section of the collecting cylinder 22 is an annular structure. One end of the collecting cylinder 22 is an open structure and a cover plate 25 is threadedly connected to the open end. A collecting groove 23 is opened on the side wall of the collecting cylinder 22. A mounting plate 26 is fixedly installed on the cover plate 25. The mounting plate 26 is slidably connected to a limiting groove 27 fixedly installed on the side of the shell 1. Multiple groups of guide plates 24 are fixedly installed in the area corresponding to the collecting groove 23 in the collecting cylinder 22. The guide plates 24 are distributed along the radial direction of the collecting cylinder 22, and the multiple groups of guide plates 24 are distributed at intervals. A power component 33 that drives the mounting shaft 15 to rotate within a set range is provided on the support plate 9, and a stirring component 32 is provided in the shell 1.

[0033] In actual application of this embodiment, the collecting cylinder 22 is installed on the housing 1 through the mounting plate 26 and the limiting groove 27, and the collecting cylinder 22 is coaxially arranged with the rotating tube 11. Sewage and inorganic salt solution are added into the housing 1 to a set liquid level, and the sewage in the housing 1 is stirred by the stirring component 32 so that the sewage and the inorganic salt solution are fully mixed for salt precipitation. The sewage in the housing 1 can circulate between the channels formed by the partition 2 through the stirring component 32; The rotating tube 11 is driven to rotate by the second rotating power member 13, and the air pump 28 delivers air to the connecting box 10. The rotating tube 11 drives the multiple groups of mounting frames 12 to rotate. After the mounting frames 12 rotate and enter the sewage, they pass through the channel formed by the partition 2, and the mounting frames 12 and the filter cloth 14 completely cover the channel formed by the partition 2. The direction of movement of the mounting frames 12 in the channel is opposite to the direction of sewage flow. When the protein in the sewage is salted out to form particles, it will move with the sewage, so that when the particles flow in the channel, they will be intercepted and filtered by the filter cloth 14, and then the particles will The particles are adsorbed on the filter cloth 14. As the mounting frame 12 rotates, the filter cloth 14 is transferred out of the sewage. At this time, the particles are located on the upper surface of the filter cloth 14. When the mounting frame 12 rotates to a horizontal state and continues to rotate, the mounting shaft 15 rotates under the action of the power assembly 33, thereby driving the filter cloth 14 to rotate. When the filter cloth 14 rotates, the particles on it move toward the direction close to the rotating tube 11. When the extension line of the surface of the filter cloth 14 enters the collecting tank 23, the position where the filter cloth 14 contacts the sewage liquid surface moves to the contact position between the scraper 16 and the filter cloth 14. The filter cloth 14 is in the position, and as the filter cloth 14 continues to rotate, the particles on the filter cloth 14 are scraped off by the scraper 16. At the same time, the gas in the communication box 10 enters the first blowing chamber 18 and then blows through the through hole 19 to the discharge channel formed by the scraper 16 and the baffle 17. The particles scraped off by the scraper 16 are blown to the collection cylinder 22 by the high-speed air flow. The particles enter the collection cylinder 22 through the collection groove 23. The movement of the particles is guided by the guide plate 24, so as to prevent the particles from flying away from the collection cylinder 22. When the extension line of the surface of the filter cloth 14 rotates to the other side of the collection groove 23, the particles are prevented from flying away from the collection cylinder 22. When the filter cloth 14 is on the side, the filter cloth 14 is in a vertical state, and the part of the filter cloth 14 that intercepts and filters the particles all passes through the end position of the scraper 16, that is, all the particles on the filter cloth 14 are cleaned, so that during the cleaning process, the particles are always located above the filter cloth 14, thereby preventing the particles on the filter cloth 14 from detaching and entering the housing 1 again during the rotation of the mounting frame 12, thereby improving the collection effect of the particles, and the discharge channel and the guide plate 24 can further increase the probability of the particles entering the collection barrel 22, further improving the collection effect of the particles; When the extension line of the surface of the filter cloth 14 leaves the collecting tank 23, the filter cloth 14 itself stops rotating. When the rotating tube 11 continues to rotate and the group of filter cloths 14 enters the sewage again, the part of the filter cloth 14 that intercepts the particles is the part that did not intercept the particles last time, that is, the positions of the two parts of the filter cloth 14 are swapped. During the interception process, when the sewage passes through a layer of filter cloth 14 on the rear side, the particles remaining on the layer of filter cloth 14 can be washed down, and the washed down particles continue to move with the sewage, and can be intercepted and collected again later, thereby reducing the residue of particles on the filter cloth 14, further improving the collection capacity of particles, and improving the collection capacity of sewage, and the collecting cylinder 22 can be disassembled and cleaned later.

[0034] In an example of this embodiment, the second rotating power component 13 is a second motor, and of course it can also be other components capable of outputting rotating power, such as a hydraulic motor, and the rotating tube 11 is driven to rotate by the second motor.

[0035] like Figure 1-Figure 3 As shown, a food processing wastewater treatment equipment is provided by the present invention, wherein a second blowing chamber 20 is fixedly installed in the mounting frame 12, and a plurality of blowing pipes 21 are fixedly installed on the surface of the second blowing chamber 20 close to the first blowing chamber 18, and the extension lines of the blowing pipes 21 point to the entrance of the material discharge channel formed by the baffle 17 and the scraper 16, and the second blowing chamber 20 is connected to the rotating tube 11.

[0036] Specifically, the rotating tube 11 is connected to a plurality of connecting tubes 29 , and the connecting tubes 29 are connected to the first blowing chamber 18 and the second blowing chamber 20 on the corresponding mounting frame 12 .

[0037] In actual application of this embodiment, the air pump 28 transports air into the connecting box 10, the air in the connecting box 10 enters the rotating tube 11 and then is transported to the first blowing chamber 18 and the second blowing chamber 20 through the connecting tube 29, and the air in the second blowing chamber 20 is blown out through the blowing pipe 21, and the air blown out of the blowing pipe 21 blows toward the filter cloth 14. Since the extension line of the blowing pipe 21 points to the entrance of the discharge channel formed by the baffle 17 and the scraper 16, the filter cloth 14 can be closely attached to the scraper 16 under the action of air. At the same time, the air will pass through the filter cloth 14 to blow the particles attached to the filter cloth 14 upwards, and the blown particles enter the discharge channel, thereby improving the cleaning effect of the particles on the filter cloth 14 and reducing the residual particles on the filter cloth 14.

[0038] like Figure 1-Figure 3 As shown, a food processing wastewater treatment device provided by the present invention, the power assembly 33 includes a friction wheel 30, the friction wheel 30 is fixedly mounted on the mounting shaft 15 away from the rotating tube 11, the friction wheel 30 is located at one end of the mounting shaft 15 and a slot for mounting the friction wheel 30 is opened on the side of the mounting frame 12, the outer side surface of the friction wheel 30 is flush with the outer side surface of the mounting frame 12, and the friction wheel 30 is in rolling contact with a friction plate 31 fixedly mounted on the support plate 9.

[0039] Specifically, the friction plate 31 is an arc-shaped structure, and the center of the circle where the friction plate 31 is located is located on the axis of the rotating tube 11 . The friction plate 31 is located in the opening area of ​​the collecting tank 23 .

[0040] In actual application of this embodiment, when the mounting frame 12 is rotated out of the housing 1 to a horizontal state, the friction wheel 30 is in contact with the end of the friction plate 31, and the rotating tube 11 continues to drive the mounting frame 12 to rotate. Under the action of the friction wheel 30 and the friction plate 31, the mounting shaft 15 rotates, and the mounting shaft 15 drives the filter cloth 14 to rotate, so that the particles on the upper surface of the filter cloth 14 move toward the side of the rotating tube 11. Since the mounting frame 12 is in a vertical state, the upper half of the filter cloth 14 does not contact the sewage, and then when the filter cloth 14 is in a horizontal state, there is no particle on the end close to the rotating tube 11, and the rotating tube 11 continues to rotate so that the surface of the filter cloth 14 When the extension line of the filter cloth 14 enters the collecting tank 23, the position where the filter cloth 14 contacts the sewage liquid surface moves to the contact position between the scraper 16 and the filter cloth 14. Then, as the filter cloth 14 continues to rotate, the particles on the filter cloth 14 can be cleaned through the scraper 16, the first blowing chamber 18 and the second blowing chamber 20. When the extension line of the surface of the filter cloth 14 rotates to the other side of the collecting tank 23, the part of the filter cloth 14 that filters the sewage all passes through the end position of the scraper 16, that is, all the particles on the filter cloth 14 are cleaned. Then, as the rotating tube 11 continues to rotate, the friction wheel 30 disengages from the friction plate 31, and the filter cloth 14 no longer rotates.

[0041] like Figure 1-Figure 2 As shown, a food processing wastewater treatment device provided by the present invention, the stirring assembly 32 includes a first rotating shaft 3, the first rotating shaft 3 is rotatably mounted on the inner wall of the shell 1 and is located between the two sets of partitions 2, a spiral blade 4 is fixedly mounted on the first rotating shaft 3, and a first rotating power member 8 for driving the first rotating shaft 3 to rotate is fixedly mounted on the outer side of the shell 1, a liquid pushing tube 5 coaxially arranged with the first rotating shaft 3 is fixedly mounted in the shell 1, the spiral blade 4 is located in the liquid pushing tube 5, and a gap is set between the end of the liquid pushing tube 5 and the inner wall of the shell 1.

[0042] Specifically, the stirring assembly 32 also includes two groups of second rotating shafts 6, which are rotatably installed in the shell 1 and parallel to the first rotating shaft 3. The two groups of second rotating shafts 6 are located on the outside of the two groups of partitions 2. A plurality of groups of stirring rods 7 distributed at intervals are fixedly installed on the second rotating shafts 6. The two groups of second rotating shafts 6 are rotatably connected to the first rotating shaft 3.

[0043] In actual application of this example, the shell 1 is separated by two groups of partitions 2, and the first rotating shaft 3 and the second rotating shaft 6 are driven to rotate simultaneously by the first rotating power member 8. The first rotating shaft 3 drives the spiral blade 4 to rotate. Due to the existence of the liquid pushing tube 5, the spiral blade 4 will push the sewage to flow when it rotates, so that the sewage in the shell 1 will move from between the two groups of partitions 2 and then flow back from the outside of the partition 2, thereby realizing the circulation of the sewage. During the circulation of the sewage, the sewage is mixed with the inorganic salt solution to accelerate the salting out of the protein. At the same time, the second rotating shaft 6 drives the stirring rod 7 to rotate. The stirring rod 7 stirs the sewage to accelerate the salting out of the protein. When particulate matter is generated in the sewage, it will move with the sewage, so that the generated particulate matter will flow from the channel between the two groups of partitions 2, and then the filter cloth 14 can intercept and filter a large number of particulate matter when moving from between the two groups of partitions 2. The filter cloth 14 is rotated by the rotating tube 11 to circulate in the channel between the partitions 2. With the particulate matter following the circulation of the sewage, the particulate matter in the sewage can be fully filtered and collected, thereby further reducing the content of residual particulate matter in the sewage and improving the sewage treatment effect.

[0044] In an example of the present embodiment, the first rotating shaft 3 and the second rotating shaft 6 are rotatably connected via a belt and a pulley, and of course they can also be connected via a gear set, and the first rotating shaft 3 and the second rotating shaft 6 are synchronously rotated by belt transmission, and the first rotating power member 8 is a first motor, and of course it can also be other components such as a hydraulic motor that can output a rotating power member, and the first rotating shaft 3 and the second rotating shaft 6 are driven to rotate by the first motor.

[0045] like Figure 1-Figure 10 As shown, a method for treating food processing wastewater provided by the present invention is applied to the above-mentioned food processing wastewater treatment equipment, and comprises the following steps: Step S1: installing the collecting cylinder 22 on the housing 1, adding sewage and inorganic salt solution into the housing 1 to a set liquid level, and stirring the sewage in the housing 1 through the stirring component 32; Step S2: The sewage in the housing 1 is allowed to circulate through the channels formed by the partitions 2 by means of the stirring assembly 32, and at the same time, the second rotating power member 13 and the rotating tube 11 drive the multiple groups of mounting frames 12 to rotate so that the filter cloth 14 intercepts and collects the particles in the sewage; Step S3: As the mounting frame 12 rotates, the filter cloth 14 is rotated out of the sewage, and the particles are located on the upper surface of the filter cloth 14. When the mounting frame 12 rotates to a horizontal state and continues to rotate, the mounting shaft 15 rotates under the action of the power assembly 33, thereby driving the filter cloth 14 to rotate itself; Step S4: When the extension line of the surface of the filter cloth 14 enters the collecting tank 23, the position where the filter cloth 14 contacts the sewage liquid surface moves to the contact position between the scraper 16 and the filter cloth 14. As the filter cloth 14 continues to rotate, the particles on the filter cloth 14 are scraped off by the scraper 16. At the same time, the gas in the communication box 10 enters the first blowing chamber 18 and then blows into the feeding channel formed by the scraper 16 and the baffle 17 through the through hole 19. The particles scraped off by the scraper 16 are blown to the collecting cylinder 22 by the high-speed flowing air. Step S5: After the collection is completed, remove the collection tube 22 for cleaning.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A food processing wastewater treatment device, comprising a housing (1), characterized in that: Two groups of partitions (2) are fixedly mounted in the shell (1), the two groups of partitions (2) are located on the inner bottom surface of the shell (1) and are spaced apart to form a channel, a support plate (9) is fixedly mounted on the shell (1), a connecting box (10) is fixedly mounted on the support plate (9), a rotating tube (11) is rotatably mounted on the connecting box (10), the rotating tube (11) extends into the connecting box (10), and a second rotating power member (13) is fixedly mounted on the connecting box (10) for driving the rotating tube (11) to rotate; The rotating tube (11) is fixedly mounted with a plurality of mounting frames (12) distributed in a circular array around its axis. When the rotating tube (11) rotates, two side surfaces of the mounting frames (12) are in sliding contact with the two groups of partitions (2) respectively. A filter cloth (14) with a conveyor belt structure is rotatably mounted in the mounting frames (12) via two groups of mounting shafts (15). A gap is provided between the end of the filter cloth (14) close to the rotating tube (11) and the rotating tube (11). A scraper (16) and a baffle (17) are fixedly mounted on the end of the mounting frames (12) close to the rotating tube (11). The scraper (16) and the baffle (17) are fixedly mounted on the end of the mounting frames (12) close to the rotating tube (11). The plate (16) is in sliding contact with the surface of the filter cloth (14) for intercepting particles, the baffle plate (17) and the scraper plate (16) are provided with parallel sections and the two and the mounting frame (12) form a material discharge channel, a first blowing chamber (18) is fixedly mounted on the end of the baffle plate (17) away from the rotating tube (11), a plurality of groups of through holes (19) arranged at intervals are provided on the side of the first blowing chamber (18) close to the material discharge channel, the first blowing chamber (18) is connected to the rotating tube (11) and an air pump (28) for conveying gas into the connecting box (10) is fixedly mounted on the support plate (9); The housing (1) is provided with a collecting cylinder (22) extending into the interval between the plurality of filter cloth groups (14) and the rotating tube (11); the support plate (9) is provided with a power assembly (33) for driving the mounting shaft (15) to rotate within a set range; and a stirring assembly (32) is provided in the housing (1).

2. A food processing wastewater treatment equipment according to claim 1, characterized in that: A second blowing chamber (20) is fixedly mounted in the mounting frame (12); a plurality of blowing pipes (21) are fixedly mounted on the surface of the second blowing chamber (20) close to the first blowing chamber (18); the extension lines of the blowing pipes (21) point to the inlet of the material discharge channel formed by the baffle plate (17) and the scraper plate (16); and the second blowing chamber (20) is in communication with the rotating tube (11).

3. A food processing wastewater treatment equipment according to claim 2, characterized in that: The rotating tube (11) is connected to a plurality of groups of connecting tubes (29), and the connecting tubes (29) are connected to a first blowing chamber (18) and a second blowing chamber (20) on a corresponding mounting frame (12).

4. A food processing wastewater treatment equipment according to claim 1, characterized in that: The collecting tube (22) has a ring-shaped cross-section, one end of the collecting tube (22) is an open structure and a cover plate (25) is threadedly connected to the open end, a collecting groove (23) is provided on the side wall of the collecting tube (22), a mounting plate (26) is fixedly mounted on the cover plate (25), and the mounting plate (26) is slidably connected to a limiting groove (27) fixedly mounted on the side of the housing (1).

5. A food processing wastewater treatment equipment according to claim 4, characterized in that: A plurality of groups of guide plates (24) are fixedly installed in an area corresponding to the collection groove (23) in the collection barrel (22); the guide plates (24) are distributed along the radial direction of the collection barrel (22), and the plurality of groups of guide plates are distributed at intervals.

6. A food processing wastewater treatment equipment according to claim 1, characterized in that: The power assembly (33) comprises a friction wheel (30), the friction wheel (30) being fixedly mounted on a mounting shaft (15) away from the rotating tube (11), the friction wheel (30) being located at one end of the mounting shaft (15), and a slot for mounting the friction wheel (30) being provided on a side surface of the mounting frame (12), the outer side surface of the friction wheel (30) being flush with the outer side surface of the mounting frame (12), and the friction wheel (30) being in rolling contact with a friction plate (31) fixedly mounted on the support plate (9).

7. A food processing wastewater treatment equipment according to claim 6, characterized in that: The friction plate (31) is an arc-shaped structure, and the center of the circle where the friction plate (31) is located is located on the axis of the rotating tube (11). The friction plate (31) is located in the opening area of ​​the collecting groove (23).

8. The food processing wastewater treatment equipment according to claim 1, characterized in that: The stirring assembly (32) comprises a first rotating shaft (3), the first rotating shaft (3) being rotatably mounted on the inner wall of the shell (1) and being located between the two sets of partitions (2), a spiral blade (4) being fixedly mounted on the first rotating shaft (3), and a first rotating power member (8) for driving the first rotating shaft (3) to rotate being fixedly mounted on the outer side of the shell (1), a liquid pushing tube (5) coaxially arranged with the first rotating shaft (3) being fixedly mounted in the shell (1), the spiral blade (4) being located in the liquid pushing tube (5), and a gap being provided between the end of the liquid pushing tube (5) and the inner wall of the shell (1).

9. A food processing wastewater treatment equipment according to claim 8, characterized in that: The stirring assembly (32) further comprises two sets of second rotating shafts (6), the second rotating shafts (6) being rotatably mounted in the housing (1) and parallel to the first rotating shaft (3), the two sets of second rotating shafts (6) being located outside the two sets of partitions (2), a plurality of sets of stirring rods (7) being fixedly mounted at intervals on the second rotating shafts (6), and the two sets of second rotating shafts (6) being rotatably connected to the first rotating shaft (3).

10. A method for treating food processing wastewater, characterized in that: A food processing wastewater treatment device as claimed in any one of claims 1 to 9, comprising the following steps: Step S1: installing the collecting cylinder (22) on the housing (1), adding sewage and an inorganic salt solution into the housing (1) to a set liquid level, and stirring the sewage in the housing (1) by means of a stirring assembly (32); Step S2: The sewage in the housing (1) is allowed to circulate through the channels formed by the partition (2) by means of the stirring assembly (32), and at the same time, the plurality of mounting frames (12) are driven to rotate by means of the second rotating power member (13) and the rotating tube (11) so that the filter cloth (14) intercepts and collects particulate matter in the sewage; Step S3: As the mounting frame (12) rotates, the filter cloth (14) is rotated out of the sewage, and the particulate matter is located on the upper surface of the filter cloth (14). When the mounting frame (12) rotates to a horizontal state and continues to rotate, the mounting shaft (15) rotates under the action of the power assembly (33), thereby driving the filter cloth (14) itself to rotate; Step S4: when the extension line of the surface of the filter cloth (14) enters the collecting tank (23), the position where the filter cloth (14) contacts the sewage liquid surface moves to the contact position between the scraper (16) and the filter cloth (14), and as the filter cloth (14) continues to rotate, the particles on the filter cloth (14) are scraped off by the scraper (16), and at the same time, the gas in the communication box (10) enters the first blowing chamber (18) and then blows through the through hole (19) to the discharge channel formed by the scraper (16) and the baffle (17), and the particles scraped off by the scraper (16) are blown to the collecting cylinder (22) by the high-speed flowing air; Step S5: After the collection is completed, the collection tube (22) is removed for cleaning.

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