WO2023130303A1

WO2023130303A1 - Solid and liquid separation device applied to treatment of restaurant wastewater

Info

Publication number: WO2023130303A1
Application number: PCT/CN2022/070455
Authority: WO
Inventors: 李俊峰; 郑新芳; 李子腾
Original assignee: 广州工商学院
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2023-07-13

Abstract

The present invention relates to the field of solid-liquid separation. Disclosed is a solid and liquid separation device applied to the treatment of restaurant wastewater, comprising: a storage tank, a first-stage separation component, which is used for separating solids with large particle diameters in the wastewater, a second-stage separation component, which is used for separating the residual wastewater in the solids with large particle diameters, a sedimentation component, which is fixedly arranged at a water output end of the first-stage separation component, and a third-stage separation component, which is used for separating the settled solids in the wastewater, wherein the first-stage separation component comprises a delivery pipe, which is fixedly mounted in the middle of the interior of the storage tank, a spiral rod, which is movably arranged in the middle of the interior of the delivery pipe, and a water transfer pipe, which is fixedly connected to the middle of one side of the delivery pipe; a side face of the delivery pipe is provided with filter holes, which are in communication with the delivery pipe and the water transfer pipe; and the second-stage separation component comprises a stop block, a collection block and an air pump, which are fixedly mounted at an upper end of the delivery pipe. In the present invention, staged filtering is used, which is convenient to completely filter the wastewater; and a filter structure is cleaned in a timely manner, which is convenient to prevent blockage of the filter structure, thereby improving the filter efficiency.

Description

A solid and liquid separation device for catering wastewater treatment

technical field

The invention belongs to the field of solid-liquid separation, and in particular relates to a solid-liquid separation device applied to the treatment of catering wastewater.

Background technique

Catering wastewater refers to the residue and waste produced by the catering industry and unit canteens. The main components of catering wastewater are leftover food and water, with organic matter such as starch, dietary fiber, and animal fat as the main components. It has high nutritional content and moisture content. High, high oil and salt content, perishable fermentation and smelly. If it is collected, transported and disposed of together with domestic waste, it will seriously affect the city environment and residents' lives, and will also affect the final disposal effect of domestic waste. In addition, food waste contains a large amount of organic matter, which is both comprehensive and rich in nutrition. As long as appropriate treatment technology is adopted, food waste water can be fully utilized as "resources".

Various components in catering wastewater can be divided into large-size solids, particulates and flocculent impurities. The existing filtration method of catering wastewater is uniform filter filtration, which is very easy to block the filter during the filtration process and reduce the filtration efficiency; and There is the problem of incomplete solid-liquid separation; and various impurities will adhere to the filter screen when mixed together. These impurities usually need to be cleaned manually. It is not convenient to clean the impurities, and the unpleasant smell in the wastewater can also cause human discomfort.

Therefore, the existing solid and liquid separation devices for catering wastewater treatment have the problems of low filtration efficiency, incomplete solid-liquid separation, and inconvenient filter cleaning. Therefore, we propose a device for catering wastewater treatment. Solid and liquid separation device.

Contents of the invention

The purpose of the present invention is to provide a solid and liquid separation device applied to the treatment of catering wastewater, which can effectively solve the problems of low filtration efficiency and solid-liquid separation in the existing solid and liquid separation device for catering wastewater treatment proposed in the background art. The problem of incompleteness, and the problem of inconvenient cleaning of the filter screen.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The invention is a solid and liquid separation device applied to the treatment of catering wastewater, which includes a storage tank, a primary separation component for separating solids with larger particle diameters in wastewater, and a secondary separation component for separating residual wastewater from solids with larger particle diameters. The first-stage separation component, the settling component fixedly arranged at the outlet end of the first-stage separation component, is used to separate the three-stage separation component of the precipitated solids in the wastewater; The separation component separates the residual wastewater in solids with larger particle sizes, which facilitates more complete solid-liquid separation. Through the setting of the sedimentation component and the three-stage separation component, it is convenient to separate the particles and flocs in the remaining wastewater. This process makes the separation effect more effective. good.

The first-stage separation assembly includes a delivery pipe fixedly installed in the middle of the storage tank, a screw rod movably arranged in the middle of the delivery pipe, and a water delivery pipe fixedly connected to the middle of one side of the delivery pipe. The filter hole of the delivery pipe and the water delivery pipe; this design is convenient for preliminary filtration of wastewater, and the screw rod is convenient to clean the impurities in the filter hole during the rotation process, so as to avoid the blockage of the filter hole and reduce the filtration efficiency.

The secondary separation assembly includes a stopper fixedly installed on the upper end of the delivery pipe, a collection block and an air pump, the collection block is fixedly installed directly under the stopper, a water collection tank is opened inside the lower end of the collection block, and the collection block There is a microhole in the middle of the upper end of the upper end that communicates with the water collection tank. The air pump is fixedly installed on the side of the collection block and communicates with the interior of the collection block. The height of the water outlet end of the water delivery pipe is higher than that of the water inlet end, and It is lower than the bottom height of the collection block; the waste water is completely submerged in the filter hole, so that the filter hole is located after the impurities are attached, and the impurities are easily washed away by the chaotic flow of the waste water, and the impurities are conveniently conveyed upward by the screw rod. It is discharged so that the liquid level in the conveying pipe is lower than the height of the discharge end of the conveying pipe. After the solid rises to a certain height, it is separated from the waste water. The solid is continuously conveyed by the screw rod, and a certain amount of water attached to the body is thrown off, and finally Entering the top of the collection block, the waste water on the solid flows to the top of the collection block under the action of gravity, and the air pump generates negative pressure in the sump, which is convenient to draw the waste water above the collection block through the micropores, which facilitates the solid-liquid separation effect of the waste water Better, more complete separation. Since the solids that fall into the top of the collection block are large-sized solids, it is difficult for these large-sized solids to block the micropores, which is convenient to ensure the water filtration efficiency of the micropores, and the negative pressure generated in the water collection tank is adjustable. Just suck the wastewater into the sump. When the solid matter blocks some of the micropores, the negative pressure of the sump is not enough to suck the solid matter into the micropores. Even if there are particles attached to the large-size solids, they are transported to the collection block. When the sewage is treated, the air pump is adjusted to fill the sump with gas, so that the inside of the sump forms a high pressure, which facilitates the discharge of the substances at the opening above the micropores and cleans up impurities. By separating the residual waste water on the filtered solids, the solid-liquid separation effect is better, and the problem of solids blocking micropores is avoided at the same time.

The three-stage separation assembly includes a separation pool, a briquetting block movable inside the separation pool, a filter element inside the briquetting block, an exhaust valve inside the briquetting block, a drainage pump fixedly installed above the briquetting block, and a The cleaning block inside the block, the inside of the press block is provided with a filter chamber, the filter element is fixedly installed inside the filter chamber, the outlet end of the exhaust valve is located inside the filter chamber, and the press block is in the separation pool The inside moves up and down, and the cleaning nozzle of the cleaning block is facing the bottom of the filter element. The filter element and sand tank filter bed are of the same structure, the filter chamber is connected to the outside world, the sedimented wastewater enters the separation tank through the cleaning block, the solid matter in the wastewater sinks to the bottom of the separation tank, and the briquetting block moves downward to exhaust The valve is in a closed state, which increases the water pressure inside the separation tank, and the waste water is filtered from the filter element and enters the upper part of the filter chamber, and is pumped out by the drainage pump. The filtering method here can reduce the contact between solid impurities and the filter element, and prevent the filter element from being It is blocked during the filtration process. At the same time, in the following process, the briquetting block moves upward, and the exhaust valve is also closed, so that the internal pressure of the separation tank is reduced, and the outside air enters the filter chamber and enters the bottom of the briquetting block from the filter element. The accumulated waste water flows downward rapidly under the push of the air, and the solid filtered in the filter element is discharged downward, which is convenient for cleaning the filter element and ensuring the filtration efficiency of the filter element. When the briquette reaches the highest point, the exhaust valve opens and the air flows The exhaust valve is discharged, the air pressure is balanced, and the high-speed water flows out of the cleaning block to the bottom of the filter element for washing, which is convenient to avoid solid impurities remaining at the bottom of the filter element. When the waste water inside the separation tank is filled, the exhaust valve is closed, the pressing block is pressed down, and the filter element repeats. Filter waste water. This design is convenient to reduce the attachment of impurities on the filter element, so as to ensure the filtration efficiency of the filter element, improve the service life of the filter element, and facilitate the timely cleaning of the filter element, so that the filtering effect is better.

Preferably, the secondary separation assembly further includes a collecting box fixedly installed on the side of the storage tank, a first motor fixedly installed directly above the block, and a scraper movably arranged directly below the block, and the scraper is fixed It is connected to the output end of the first motor, and is attached to the upper surface of the collecting box. This design facilitates the timely collection of filtered solids, avoiding the accumulation of solids on the collection block and affecting the filtration efficiency.

Preferably, the secondary separation assembly further includes a catheter fixedly installed at the bottom of the collection block and a one-way valve fixedly installed inside the catheter, and the liquid outlet of the catheter communicates with the water delivery pipe. The catheter facilitates the introduction of the wastewater after the secondary separation into the sedimentation component for sedimentation and separation, so that the wastewater treatment effect is better.

Preferably, the water delivery pipe has a Z-shaped structure as a whole. It is convenient to make the height of the outlet end of the water delivery pipe higher than the water inlet end, to ensure that the filter hole is completely submerged, and to facilitate the waste water to wash away the impurities in the filter hole.

Preferably, the three-stage separation assembly further includes a second motor fixedly arranged on one side of the separation tank, a rotating block fixedly installed at the output end of the second motor, and a connecting rod movably connected to the end of the rotating block, and the connecting rod moves Attached to the top of the compact. This design is convenient to drive the pressing block to perform vertical reciprocating motion.

Preferably, the three-stage separation assembly further includes a fourth motor fixedly installed at the bottom of the separation tank, a scraper movably arranged at the inner bottom of the separation tank, and a discharge valve fixedly installed at the lower end of the side of the separation tank. This design facilitates the timely discharge of the solid inside the separation tank to avoid the deposition of impurities.

Preferably, a cleaning pump is fixedly connected to the liquid outlet of the sedimentation component, and the liquid outlet of the cleaning pump is fixedly connected to the liquid inlet of the cleaning block. This design facilitates injecting waste water into the cleaning block, and generates high-speed water flow at the cleaning nozzle of the cleaning block.

Preferably, the settling assembly includes a settling tank, a stirring shaft movably arranged inside the settling tank, a third motor for driving the stirring shaft, and an adding block for adding flocculant to the inside of the settling tank, the adding The block is fixedly mounted above the side of the settling tank. This design facilitates the precipitation of particulates and flocs in the filtered wastewater.

Preferably, there are two sedimentation components, the water inlet ends of the two sedimentation tanks communicate with the water outlet ends of the water delivery pipe through the first three-way valve, and the water outlet ends of the two sedimentation tanks pass through the second three-way valve Connect with the water inlet of the cleaning pump. When the wastewater in one of the sedimentation tanks is cleaned up, the wastewater in the other sedimentation tank is connected in time to facilitate the continuous sedimentation and filtration operations of the device.

Preferably, a counterweight is fixedly installed on one side of the rotating block. This design facilitates making the movement of the device more stable.

The present invention has the following beneficial effects:

1. The present invention separates solids with large particle diameters in waste water through the first-stage separation assembly, and separates residual waste water in large-diameter solids through the second-stage separation assembly, which facilitates more complete solid-liquid separation. Through the precipitation assembly and the third-stage separation assembly The setting is convenient for separating the particles and flocs in the remaining wastewater. The division of labor in this process is orderly, which makes the separation more complete and the separation effect better.

2. The present invention drives the waste water to flow chaotically through the screw rod, which is convenient for cleaning the impurities in the filter holes, so as to avoid the clogging of the filter holes and reduce the filtration efficiency. The solid waste water is filtered through the collection block, water collection tank, micropore and air pump, which is convenient To avoid clogging of micropores, by precipitating waste water impurities, the filter element can be used to filter waste water to reduce the adhesion of impurities by using the pressing block to move down, and using the pressing block to move up, the impurities in the filter element can be cleaned in time by forming a low pressure, and the use of cleaning The block guides the waste water to be washed in time, which is convenient to avoid the clogging of the filter element and the adhesion of impurities, and solves the problem of structural clogging during the filtration process.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a perspective view of a solid and liquid separation device applied to catering wastewater treatment of the present invention;

Fig. 2 is an enlarged view of part A in Fig. 1 of a kind of solid and liquid separation device applied to catering wastewater treatment of the present invention;

Fig. 3 is a front sectional view of a solid and liquid separation device applied to catering wastewater treatment according to the present invention;

Fig. 4 is an enlarged view of part B in Fig. 3 of a solid and liquid separation device applied to catering wastewater treatment according to the present invention;

Fig. 5 is a top view of a solid and liquid separation device applied to catering wastewater treatment according to the present invention;

Fig. 6 is a perspective view of a delivery pipe of a solid and liquid separation device applied to catering wastewater treatment according to the present invention;

Fig. 7 is a top cross-sectional view of a secondary separation component of a solid and liquid separation device applied to the treatment of catering wastewater according to the present invention;

Fig. 8 is a perspective view of a collection block of a solid and liquid separation device used in the treatment of catering wastewater according to the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Storage tank; 2. Delivery pipe; 3. Screw rod; 4. Water delivery pipe; 5. Filter hole; 6. Block; 7. Collection block; 8. Air pump; , separation tank; 12, briquetting block; 13, filter element; 14, exhaust valve; 15, drainage pump; 16, filter chamber; 17, collection box; 18, first motor; 19, scraper; 20, liquid guide Tube; 21, one-way valve; 22, second motor; 23, rotating block; 24, connecting rod; 25, sedimentation tank; 26, stirring shaft; 27, third motor; 28, adding block; 29, fourth motor ; 30, scraping block; 31, discharge valve; 32, cleaning block; 33, cleaning pump; 34, counterweight block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicate orientation or positional relationship, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying that a referenced component or element must have a particular orientation, be constructed and operate in a particular orientation.

Example:

Please refer to Figures 1-8, the present invention is a solid and liquid separation device applied to catering wastewater treatment, including a storage tank 1, a primary separation component for separating larger solids in wastewater, and a separation unit for separating The secondary separation component for the residual wastewater in solids with large particle size, the sedimentation component fixed at the outlet of the primary separation component, and the tertiary separation component for separating the precipitated solids in the wastewater; through the primary separation component, the waste water Separation of larger particle size solids, the residual wastewater in larger particle size solids is separated by the secondary separation component, which facilitates more complete solid-liquid separation, and the setting of the sedimentation component and the third-level separation component facilitates the removal of particles and flocs in the remaining wastewater The separation of substances, the division of labor in this process is orderly, making the separation more complete and the separation effect better.

The primary separation assembly includes a delivery pipe 2 fixedly installed in the middle of the storage tank 1, a screw rod 3 movably arranged in the middle of the delivery pipe 2, a water delivery pipe 4 fixedly connected to the middle of one side of the delivery pipe 2, and the side of the delivery pipe 2. There is a filter hole 5 connecting the delivery pipe 2 and the water delivery pipe 4; the screw rod 3 is driven by the drive motor. This design is convenient for preliminary filtration of wastewater. The screw rod 3 is convenient for cleaning the impurities at the filter hole 5 during the rotation process, so that It can be automatically cleaned in time to avoid the attachment of impurities and the blockage of the filter hole 5 to reduce the filtration efficiency.

The secondary separation assembly includes a block 6 fixedly installed on the upper end of the delivery pipe 2, a collection block 7 and an air pump 8, the collection block 7 is fixedly installed directly below the block 6, and a water collection tank 9 is provided inside the lower end of the collection block 7, and the collection block The middle of the upper end of 7 is provided with a micropore 10 communicating with the sump 9, the air pump 8 is fixedly installed on the side of the collecting block 7, and communicates with the inside of the collecting block 7, and the height of the water outlet end of the water delivery pipe 4 is higher than that of the water inlet end. Height, and lower than the height of the bottom of the collection block 7; the hole depth of the micropore 10 is 1-2cm, the deeper the micropore 10, the less easy it is for impurities to enter, so as to prevent clogging, the waste water is completely immersed in the filter hole 5, so that the filter hole 5 After the impurities are attached, the chaotic flow of the waste water facilitates the removal of the impurities, so that the impurities can be cleaned up in time, avoiding the attachment of the impurities, and making it easy for the impurities to be continuously conveyed upward by the screw rod 3. Since the waste water is discharged from the water delivery pipe 4, the The height of the liquid level in the conveying pipe 2 is lower than the height of the discharge end of the conveying pipe 2. After the solid rises to a certain height, it is separated from the waste water. The solid is continuously conveyed by the screw rod 3, and a certain amount of water attached to the body is thrown off, and finally enters the waste water. Above the collection block 7, the waste water on the solid flows to the top of the collection block 7 under the action of gravity, and the air pump 8 generates negative pressure in the sump 9, so that the waste water above the collection block 7 can be easily drawn through the micropore 10, so that the waste water The solid-liquid separation effect is better and the separation is more complete. Because it is the large particle size solid that falls on the top of the collection block 7, these large particle size solids are difficult to block the micropore 10, which is convenient to ensure the water filtration efficiency of the micropore 10, and the negative pressure value generated in the water collection tank 9 can be Its pressure is just enough to suck waste water in the sump 9. When the solid matter blocks some of the micropores 10, the negative pressure of the sump 9 is not enough to suck the solid matter into the micropores 10. Even if there are particles attached to the large particles When the solids on the diameter are transported to the collection block 7, the micropores 10 will not be blocked. After the sewage treatment is completed, the air pump 8 is adjusted to fill the water collection tank 9 with gas, so that the inside of the water collection tank 9 forms a high pressure, which is convenient for the micropores 10. The material at the upper opening is drained away, and the impurities are automatically cleaned, and the cleaning is convenient. By separating the waste water remaining on the filtered solids, the effect of solid-liquid separation is better, and at the same time, the problem of solids blocking the micropores 10 is avoided.

The three-stage separation assembly includes a separation tank 11, a briquetting block 12 movable inside the separation tank 11, a filter element 13 inside the briquetting block 12, an exhaust valve 14 inside the briquetting block 12, and a drainage device fixedly installed above the briquetting block 12. The pump 15 and the cleaning block 32 fixedly arranged inside the pressing block 12, the inside of the pressing block 12 is provided with a filter chamber 16, the filter element 13 is fixedly installed inside the filter chamber 16, and the gas outlet end of the exhaust valve 14 is located inside the filter chamber 16 , the pressing block 12 moves up and down inside the separation tank 11, and the cleaning nozzle of the cleaning block 32 faces the bottom of the filter element 13. The filter bed of filter core 13 and sand tank filter is the same structure, and the filtering effect is good, but its filter bed of this filtering device of sand tank filter is inconvenient to clean in the filtering process. And filter chamber 16 is communicated with the outside world, and the waste water after the sedimentation enters separation tank 11 inside through cleaning block 32, and the solid matter in the waste water sinks to the bottom of separation tank 11, and exhaust valve 14 is closed state during briquetting block 12 moves downwards, The internal water pressure of the separation tank 11 increases, and the waste water is filtered from the filter element 13 and enters the upper interior of the filter chamber 16, and is extracted by the drainage pump 15. The filtering method here can reduce the contact between solid impurities and the filter element 13, and avoid the filter element 13. It is blocked during the filtration process. At the same time, in the following process, the briquetting block 12 moves upward, and the exhaust valve 14 is also closed, so that the internal air pressure of the separation tank 11 is reduced, and the outside air enters the filter chamber 16 and enters from the filter element 13. At the bottom of the briquetting block 12, the waste water accumulated in the filter element 13 flows downward rapidly under the push of the air, and the solid filtered in the filter element 13 is discharged downward, which is convenient for cleaning the filter element 13, so that the impurities can be cleaned in time to avoid the adhesion of impurities. It is convenient to ensure the filtration efficiency of the filter element 13. When the pressing block 12 reaches the highest point, the exhaust valve 14 is opened, the air is discharged from the exhaust valve 14, and the air pressure is balanced. The high-speed water flows out of the cleaning block 32 and flows to the bottom of the filter element 13 for washing, which is convenient to avoid the filter element There are solid impurities remaining at the bottom of 13, and when the waste water inside the separation tank 11 is filled, the exhaust valve 14 is closed, the briquetting block 12 is pressed down, and the filter element 13 repeatedly filters the waste water. This design is convenient to reduce the attachment of impurities on the filter element 13, so as to ensure the filtration efficiency of the filter element 13, improve the service life of the filter element 13, and facilitate the automatic cleaning of the filter element 13 in time, so that the filtering effect is better.

Wherein, the secondary separation assembly also includes a collecting box 17 fixedly installed on the side of the storage tank 1, a first motor 18 fixedly installed directly above the block 6, a scraper 19 movably arranged directly below the block 6, and the scraper 19 is fixedly connected to the output end of the first motor 18, and is attached to the upper surface of the collecting box 17. This design facilitates the timely collection of filtered solids and prevents solids from accumulating on the collection block 7 from affecting filtration efficiency.

Wherein, the secondary separation assembly further includes a catheter 20 fixedly installed at the bottom of the collection block 7 and a one-way valve 21 fixedly installed inside the catheter 20 , the liquid outlet of the catheter 20 communicates with the water pipe 4 . The catheter 20 is convenient for introducing the wastewater after the secondary separation into the sedimentation component for sedimentation and separation, so that the wastewater treatment effect is better.

Wherein, the water delivery pipe 4 has a Z-shaped structure as a whole. It is convenient to make the water outlet end of the water delivery pipe 4 higher than the water inlet end, to ensure that the filter hole 5 is completely submerged, and to facilitate the waste water to wash away the impurities in the filter hole 5.

Wherein, the three-stage separation assembly also includes a second motor 22 fixedly arranged on one side of the separation tank 11, a rotating block 23 fixedly installed at the output end of the second motor 22, a connecting rod 24 movably connected to the end of the rotating block 23, and the connecting rod 24 movably connected on the top of briquetting block 12. This design is convenient to drive the pressing block 12 to reciprocate in the vertical direction.

Wherein, the three-stage separation assembly also includes a fourth motor 29 fixedly installed at the bottom of the separation tank 11, a scraper 30 movably arranged at the inner bottom of the separation tank 11, and a discharge valve 31 fixedly installed at the lower end of the side of the separation tank 11. This design facilitates the timely discharge of the solids precipitated by the flocculant inside the separation tank 11 to avoid the deposition of impurities, and the solids are discharged only when the wastewater treatment is suspended or completed.

Wherein, a cleaning pump 33 is fixedly connected to the liquid outlet of the precipitation assembly, and the liquid outlet of the cleaning pump 33 is fixedly connected to the liquid inlet of the cleaning block 32 . This design facilitates injecting waste water into the cleaning block 32, and generates high-speed water flow at the cleaning nozzle of the cleaning block 32.

Wherein, the settling assembly includes a settling tank 25, a stirring shaft 26 movably arranged inside the settling tank 25, a third motor 27 for driving the stirring shaft 26, and an adding block 28 for adding flocculant to the inside of the settling tank 25 , The addition block 28 is fixedly installed above the side of the sedimentation tank 25 . This design facilitates the precipitation of particulates and flocs in the filtered wastewater.

Among them, there are two settling components, the water inlet ends of the two settling tanks 25 communicate with the water outlet ends of the water delivery pipe 4 through the first three-way valve, and the water outlet ends of the two settling tanks 25 pass through the second three-way valve and the cleaning pump 33 The water inlet is connected. When the waste water in one of the settling tanks 25 is cleaned up, the waste water in the other settling tank 25 is connected in time to facilitate continuous settling and filtering operations of the device.

Wherein, a counterweight 34 is fixedly installed on one side of the rotating block 23 . This design facilitates making the movement of the device more stable.

In the description of this specification, descriptions referring to the terms "one embodiment", "example", "specific example" and the like mean that specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims

A solid and liquid separation device applied to the treatment of catering wastewater, characterized in that it includes a storage tank (1), a first-stage separation component for separating solids with larger particle diameters in wastewater, and a first-stage separation component for separating solids with larger particle diameters. A secondary separation component for residual wastewater, a settling component fixed at the outlet of the primary separation component, and a tertiary separation component for separating precipitated solids in wastewater;

The first-stage separation assembly includes a conveying pipe (2) fixedly installed in the middle of the storage tank (1), a screw rod (3) movably arranged in the middle of the conveying pipe (2), fixedly connected to the conveying pipe (2)- The water delivery pipe (4) in the middle of the side, the side of the delivery pipe (2) is provided with a filter hole (5) connecting the delivery pipe (2) and the water delivery pipe (4); The block (6), collection block (7) and air pump (8) at the upper end of the pipe (2), the collection block (7) is fixedly installed directly below the block (6), and the lower end of the collection block (7) A water collection tank (9) is provided inside, and a micropore (10) communicating with the water collection tank (9) is opened in the middle of the upper end of the collection block (7), and the air pump (8) is fixedly installed on the collection block (7) side, and communicate with the inside of the collection block (7), the height of the outlet end of the water delivery pipe (4) is higher than the height of the water inlet end, and lower than the height of the bottom of the collection block (7); the three-stage separation The assembly includes a separation pool (11), a briquetting block (12) that is movably arranged inside the separation pool (11), a filter element (13) inside the briquetting block (12), an exhaust valve (14) inside the briquetting block (12) ), a drain pump (15) fixedly installed on the top of the briquetting block (12), a cleaning block (32) fixedly arranged inside the briquetting block (12), and a filter chamber (16) is provided inside the briquetting block (12) , the filter element (13) is fixedly installed inside the filter chamber (16), the outlet end of the exhaust valve (14) is located inside the filter chamber (16), and the briquetting block (12) is placed in the separation pool (11) ) moves up and down, and the cleaning nozzle of the cleaning block (32) is facing the bottom of the filter element (13).
A solid and liquid separation device applied to catering wastewater treatment according to claim 1, characterized in that: the secondary separation assembly also includes a collection box (17) fixedly installed on the side of the storage tank (1), The first motor (18) that is fixedly installed on the block (6), the scraper (19) that is movably arranged under the block (6), and the scraper (19) is fixedly connected to the first motor (18) ) output end, and fit the upper surface of the collection box (17).
A solid and liquid separation device applied to the treatment of catering wastewater according to claim 1, characterized in that: the secondary separation assembly also includes a catheter (20) fixedly installed at the bottom of the collection block (7) and A one-way valve (21) fixedly installed inside the catheter tube (20), the liquid outlet end of the catheter tube (20) communicates with the water delivery pipe (4).
A solid and liquid separation device for catering wastewater treatment according to claim 1, characterized in that: the water delivery pipe (4) has a Z-shaped structure as a whole.
A solid and liquid separation device applied to catering wastewater treatment according to claim 1, characterized in that: the three-stage separation assembly also includes a second motor (22) fixed on one side of the separation pool (11) , the rotating block (23) that is fixedly installed on the output end of the second motor (22), the connecting rod (24) that is movably connected at the end of the rotating block (23), and the connecting rod (24) is movably connected to the pressing block (12) the top of.
A solid and liquid separation device for catering wastewater treatment according to claim 1, characterized in that: the three-stage separation assembly also includes a fourth motor (29) fixedly installed at the bottom of the separation pool (11), A scraper (30) is movably arranged at the inner bottom of the separation tank (11), and a discharge valve (31) is fixedly installed at the lower end of the side of the separation tank (11).
A solid and liquid separation device for catering wastewater treatment according to claim 1, characterized in that: a cleaning pump (33) is fixedly connected to the liquid outlet of the sedimentation component, and the cleaning pump (33) The liquid outlet end is fixedly connected with the liquid inlet end of the cleaning block (32).
A solid and liquid separation device applied to catering wastewater treatment according to claim 7, characterized in that: the settling assembly includes a settling tank (25), a stirring shaft (26) movably arranged inside the settling tank (25) ), the third motor (27) for driving the stirring shaft (26), and the adding block (28) for adding flocculant to the inside of the settling tank (25), the adding block (28) is fixedly installed on Above the side of the settling tank (25).
A solid and liquid separation device for catering wastewater treatment according to claim 8, characterized in that: there are two settling components, and the water inlet ends of the two settling tanks (25) pass through the first three The through valve is communicated with the water outlet of the water delivery pipe (4), and the water outlets of the two sedimentation tanks (25) are communicated with the water inlet of the cleaning pump (33) through the second three-way valve.
A solid and liquid separation device for catering wastewater treatment according to claim 5, characterized in that: a counterweight (34) is fixedly installed on one side of the rotating block (23).