Solid-liquid separation treatment equipment based on sewage sludge utilization

Abstract

The invention discloses solid-liquid separation treatment equipment based on sewage sludge utilization, and belongs to the technical field of sewage treatment.The solid-liquid separation treatment equipment comprises a base, a separation box is fixedly connected to the upper portion of the base, and a first adjusting mechanism is arranged on the inner wall of one side of the separation box and comprises a first fixing plate; the number of the first fixing plates is two, and the first fixing plates are fixedly installed on the inner wall of the separation box. According to the device, a first adjusting mechanism and an extrusion structure are arranged, in the solid-liquid separation process, a driving gear rotates to drive three driven gears meshed with the driving gear to rotate, then four stirring screws rotate, sludge close to a pressing plate is continuously conveyed to a first filter plate through the threaded design, and the sludge is conveyed to a second filter plate; the sludge without solid-liquid separation is continuously close to the first filter plate for solid-liquid separation, so that the condition that the whole separation is incomplete as part of the sludge cannot reach the first filter plate is avoided, and the sludge treatment quality of the whole equipment is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and specifically relates to a solid-liquid separation treatment device based on the utilization of sewage sludge. Background Art

[0002] With the acceleration of urbanization and the rapid development of industry, the amount of sewage treatment is increasing day by day, and the quantity of sewage sludge generated therefrom has also risen sharply. Sewage sludge not only contains a large amount of harmful substances, such as heavy metals, pathogenic bacteria, etc., but also contains certain organic substances and nutrient elements. If the sewage sludge is not properly treated, it will not only occupy a large amount of land resources, but may also cause serious pollution to the soil, water body and air, threatening the ecological environment and human health. Among the many links of sewage sludge treatment and utilization, solid-liquid separation is one of the key steps. Through solid-liquid separation, the moisture content of the sludge can be reduced, the volume and difficulty of subsequent treatment can be reduced, and at the same time, the water resources and valuable components therein can be recovered to realize the recycling of resources; Among the solid-liquid separation methods, the extrusion method is a commonly used one. However, when treating sewage sludge with strong viscosity, there are many problems with the traditional extrusion method. During the extrusion process, due to the high viscosity of the sludge, uneven separation will occur. For the sludge close to the filtration part, the solid-liquid separation effect is better, while for the sludge close to the extrusion part, because it is relatively far from the filtration part and it is difficult to fully contact the filtration part, the solid and liquid in this part of the sludge cannot be effectively separated, ultimately affecting the overall filtration effect. This poor filtration effect not only slows down the sewage sludge treatment speed, but may also cause the treated sludge to still contain more moisture or impurities, failing to achieve the ideal treatment result and hindering subsequent treatment or resource utilization. Summary of the Invention

[0003] In order to overcome the above defects, the present invention provides a solid-liquid separation treatment device based on the utilization of sewage sludge, which solves the problem that when the traditional extrusion method is used for solid-liquid separation, due to the high viscosity of the sludge, uneven separation will occur. For the sludge close to the filtration part, the solid-liquid separation effect is better, while for the sludge close to the extrusion part, because it is relatively far from the filtration part and it is difficult to fully contact the filtration part, the solid and liquid in this part of the sludge cannot be effectively separated, ultimately affecting the overall filtration effect.

[0004] To achieve the above object, the present invention provides the following technical solution: A solid-liquid separation treatment device based on the utilization of sewage sludge, including a base, a separation box is fixedly connected above the base, a first adjustment mechanism is provided on the inner wall of one side of the separation box, the first adjustment mechanism includes a first fixing plate, the number of the first fixing plates is two and they are fixedly installed on the inner wall of the separation box, a first support screw is rotatably connected between the two first fixing plates, a first control motor is fixedly installed on the top of the separation box, the output end of the first control motor penetrates through the top of the separation box and one of the first fixing plates and is connected to one end of the first support screw, four first limiting rods are respectively fixedly connected at the four corners between the two first fixing plates, an extrusion structure is provided on one side of the first adjustment mechanism, the extrusion structure includes a pressing plate, the size of the pressing plate is adapted to the size of the separation box, the pressing plate fits on the inner wall of the separation box, the first support screw penetrates through the pressing plate and is threadedly connected to the pressing plate, the four first limiting rods penetrate through the pressing plate, a driving gear is rotatably connected at the center position below the pressing plate, three driven gears are respectively rotatably connected on the outside of the driving gear below the pressing plate, the driving gear meshes with the three driven gears, an output motor is fixedly installed on the top of the pressing plate, the output end of the output motor is connected to one end of the driving gear, four stirring screws are respectively fixedly connected at the center positions of the driving gear and the three driven gears, a protective shell is fixedly installed below the pressing plate, and the protective shell is sleeved on the outer walls of the driving gear and the three driven gears.

[0005] As a further solution of the present invention: A second adjustment mechanism is provided on the inner wall of the separation box below the first adjustment mechanism, the second adjustment mechanism includes a second fixing plate, the number of the second fixing plates is two and they are fixedly installed on the inner wall of one side of the separation box, a second support screw is rotatably connected at the center position between the two second fixing plates, a second control motor is fixedly installed on the bottom of the separation box, the output end of the second control motor is connected to one end of the second support screw, and four second limiting rods are respectively fixedly installed at the four corners between the two second fixing plates.

[0006] As a further solution of the present invention: A pressure filtration mechanism is provided on one side of the second adjustment mechanism. The pressure filtration mechanism includes a first filter plate. A machine box is fixedly installed on one side of the first filter plate. A driving gear is rotatably connected to the inner wall of the machine box. Two output gears are respectively rotatably connected to both sides of the driving gear on the inner wall of the machine box. Both output gears are engaged with the driving gear. Two half gears are respectively fixedly connected to the ends of the two output gears. The orientations of the two half gears are the same. A reciprocating rod is slidably connected between the inner walls of the machine box. The reciprocating rod penetrates through the top and bottom of the machine box. The teeth of the two half gears are engaged with the ring teeth of the reciprocating rod. A reciprocating plate is fixedly connected to the top of the reciprocating rod. The reciprocating plate slides between the inner walls of the first filter plate. The size of the first filter plate matches the size of the separation box. The second support screw penetrates through one side of the first filter plate and is threadedly connected thereto. All four second limit rods penetrate through the first filter plate.

[0007] As a further solution of the present invention: Two sealing shells are respectively fixedly installed at the threaded connection positions of the pressing plate and the first filter plate with the first support screw and the second support screw. The sealing shells are of a hollow design. The first support screw and the first limit rod penetrate through the sealing shell connected to the pressing plate. The second support screw and the second limit rod penetrate through the sealing shell connected to the first filter plate.

[0008] As a further solution of the present invention: A filter box is fixedly installed above the base on one side of the separation box. A suction pump is fixedly installed above the base between the separation box and the filter box. The input end of the suction pump is connected to a position near the bottom of the separation box. The output end of the suction pump is fixedly connected to a communication pipe. The end of the communication pipe away from the suction pump is connected to the top end of the filter box.

[0009] As a further solution of the present invention: Two fixing brackets are fixedly installed between the inner walls of the filter box. The number of the fixing brackets is two. A second filter plate is provided on one side of the filter box. The second filter plate penetrates through one side of the filter box and slides between the two fixing brackets.

[0010] As a further solution of the present invention: A guide plate is fixedly installed at the bottom of the filter box. The guide plate is of an inclined design. A drain port is opened at a position near the bottom of the filter box. The inclined direction of the guide plate faces the direction of the drain port.

[0011] As a further solution of the present invention: A sealing plate is rotatably connected to one side of the separation box through a hinge. An expansion rod is provided on one side of the sealing plate. The two ends of the expansion rod are respectively rotatably connected to two connection blocks. One of the connection blocks is connected to one side of the separation box, and the other connection block is connected to the central position of the sealing plate. An injection port is opened on the outside of the separation box.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, by setting the first adjustment mechanism and the extrusion structure, when using the device, sewage sludge is injected between the pressing plate and the first filter plate through the injection port. The first adjustment mechanism drives the pressing plate to press down, and the second adjustment mechanism drives the first filter plate to move upward. Solid-liquid separation is carried out by extrusion. During the solid-liquid separation process, the output motor drives the driving gear to rotate. The driving gear rotates to drive the three driven gears meshed with it to rotate. The driving gear and the three driven gears respectively drive the four stirring screws to rotate. The stirring screws rotate under the pressing plate. The threaded design continuously conveys the sludge near the pressing plate to the first filter plate, continuously making the sludge that has not been solid-liquid separated approach the first filter plate for solid-liquid separation. In this way, it can be ensured that the sludge that is originally difficult to reach the first filter plate under the pressing plate is effectively pushed towards the first filter plate, so that the sludge in the entire space has the opportunity to contact the first filter plate for solid-liquid separation. This improves the overall solid-liquid separation efficiency of the sludge and avoids the situation of incomplete overall separation caused by some sludge being unable to reach the first filter plate, thereby improving the quality of the entire device for treating sewage sludge.

[0013] 2. In the present invention, by setting the suction pump, the connecting pipe and the filter tank, the liquid after solid-liquid separation in the separation tank passes through the first filter plate and accumulates at the bottom of the separation tank under the action of gravity. The suction pump sucks these liquids and transports them to the filter tank through the connecting pipe. When these liquids enter the filter tank, they will first pass through the second filter plate. The second filter plate performs secondary filtration on the liquids passing through it, and the liquid after secondary filtration accumulates at the bottom of the filter tank and is discharged through the drain port under the action of gravity. In this way, the purity of the liquid is improved, which is of great significance for subsequent treatment or discharge of the liquid. For example, if the liquid needs to be discharged into the natural environment, higher purity can reduce environmental pollution. If the liquid needs to be further recycled, purer liquid is also more conducive to subsequent treatment processes, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a sectional structural schematic diagram of the separation tank of the present invention; Figure 3 is a structural schematic diagram of the connection between the first adjustment mechanism and the extrusion structure of the present invention; Figure 4 is a structural schematic diagram of the extrusion structure of the present invention; Figure 5 is a structural schematic diagram of the connection between the second adjustment mechanism and the first filter plate of the present invention; Figure 6Schematic structural diagram of the connection between the first filter plate and the reciprocating plate Figure 7 Schematic structural diagram of the connection between the driving gear, the output gear and the half gear Figure 8 The present invention Figure 5 Enlarged structural diagram at position A in the present invention; Figure 9 Schematic sectional view of the filter box of the present invention; In the figure: 1, base; 2, separation box; 3, first adjustment mechanism; 301, first fixing plate; 302, first support screw; 303, first control motor; 304, first limiting rod; 4, extrusion structure; 401, pressing plate; 402, driving gear; 403, driven gear; 404, output motor; 405, stirring screw; 406, protective shell; 5, second adjustment mechanism; 501, second fixing plate; 502, second support screw; 503, second control motor; 504, second limiting rod; 6, pressure filtration mechanism; 601, first filter plate; 602, chassis; 603, driving gear; 604, output gear; 605, half gear; 606, reciprocating rod; 607, reciprocating motor; 608, reciprocating plate; 7, sealing shell; 8, filter box; 9, suction pump; 10, connecting pipe; 11, fixing bracket; 12, second filter plate; 13, guide plate; 14, drain port; 15, sealing plate; 16, telescopic rod; 17, connecting block; 18, injection port. Detailed implementation manners

[0015] The technical solutions of the present application will be further described in detail below in conjunction with the specific implementation manners.

[0016] As Figure 1-9 shown, the present invention provides a technical solution: a solid-liquid separation treatment device based on sewage sludge utilization, including a base 1, a separation box 2 is fixedly connected above the base 1, and an injection port 18 is opened on the outside of the separation box 2; one side of the separation box 2 is rotatably connected by a hinge with a sealing plate 15, and a telescopic rod 16 is arranged on one side of the sealing plate 15. Both ends of the telescopic rod 16 are respectively rotatably connected by pins with two connecting blocks 17. One of the connecting blocks 17 is connected to one side of the separation box 2, and the other connecting block 17 is connected to the central position of the sealing plate 15. Through the cooperation between the telescopic rod 16 and the connecting block 17, the telescopic rod 16 extends and contracts, rotates through one of the connecting blocks 17 on one side of the separation box 2, and at the same time, the opening and closing degree of the sealing plate 15 is accurately controlled through the connecting block 17 at the other end, ensuring that the sealing plate 15 can be tightly closed during the operation of the device to prevent material leakage, and can be conveniently opened when operation is required, facilitating maintenance, cleaning or inspection operations on the inside of the separation box 2.

[0017] Inside the separation box 2, there is a first adjustment mechanism 3. The first adjustment mechanism 3 includes a first fixed plate 301. The number of the first fixed plates 301 is two, and they are fixedly installed on the inner walls of the top and bottom of the separation box 2. A first support screw 302 is rotatably connected between the two first fixed plates 301. A first control motor 303 is fixedly installed on the top of the separation box 2. The output end of the first control motor 303 penetrates through the top of the separation box 2 and one of the first fixed plates 301 and is connected to one end of the first support screw 302.

[0018] On one side of the first adjustment mechanism 3, there is an extrusion structure 4. The extrusion structure 4 includes a pressure plate 401. The size of the pressure plate 401 is adapted to the size of the separation box 2. The pressure plate 401 is attached to the inner wall of the separation box 2. The first support screw 302 penetrates through the pressure plate 401 and is threadedly connected to the pressure plate 401. Four first limit rods 304 are respectively fixedly connected at the four corners between the two first fixed plates 301. The four first limit rods 304 penetrate through the pressure plate 401. Through the cooperation of the first support screw 302 and the pressure plate 401, the first control motor 303 drives the first support screw 302 to rotate. Under the action of the first support screw 302, the height of the pressure plate 401 can be precisely adjusted to achieve different degrees of extrusion.

[0019] Below the pressure plate 401, a driving gear 402 is rotatably connected at its central position. Below the pressure plate 401 and outside the driving gear 402, three driven gears 403 are respectively rotatably connected. The driving gear 402 meshes with the three driven gears 403. An output motor 404 is fixedly installed on the top of the pressure plate 401. The output end of the output motor 404 is connected to one end of the driving gear 402. Four stirring screws 405 are respectively fixedly connected at the central positions of the driving gear 402 and the three driven gears 403. Through the cooperation between the driving gear 402 and the driven gears 403, driven by the output motor 404, the driving gear 402 drives the three driven gears 403 to rotate, and then drives the four stirring screws 405 to rotate. The four stirring screws 405 can convey and stir the sludge.

[0020] Among them, a protective shell 406 is fixedly installed below the pressure plate 401. The protective shell 406 is sleeved on the outer walls of the driving gear 402 and the three driven gears 403. The stirring screw 405 penetrates through the protective shell 406 to the outside. Due to the presence of the protective shell 406, the protective shell 406 can protect the driving gear 402 and the driven gears 403, preventing sludge from entering and affecting their normal operation.

[0021] A second adjusting mechanism 5 is provided below the inner wall of the separation box 2 and above the first adjusting mechanism 3. The second adjusting mechanism 5 includes a second fixing plate 501. The number of the second fixing plates 501 is two and they are fixedly installed on the inner wall of one side of the separation box 2. A second support screw rod 502 is rotatably connected at the central position between the two second fixing plates 501. A second control motor 503 is fixedly installed at the bottom of the separation box 2. The output end of the second control motor 503 is connected to one end of the second support screw rod 502. Four second limiting rods 504 are respectively and fixedly installed at the four corners between the two second fixing plates 501. A pressure filtration mechanism 6 is provided on one side of the second adjusting mechanism 5. The pressure filtration mechanism 6 includes a first filter plate 601. A machine box 602 is fixedly installed on one side of the first filter plate 601. A driving gear 603 is rotatably connected to the inner wall of the machine box 602. Two output gears 604 are respectively rotatably connected to both sides of the driving gear 603 on the inner wall of the machine box 602. Both of the two output gears 604 are engaged with the driving gear 603. Two half gears 605 are respectively fixedly connected to the end parts of the two output gears 604. The orientations of the two half gears 605 are the same. A reciprocating rod 606 is slidably connected between the inner walls of the machine box 602. The reciprocating rod 606 penetrates through the top and bottom of the machine box 602. The teeth of the two half gears 605 are engaged with the ring teeth of the reciprocating rod 606. A reciprocating plate 608 is fixedly connected to the top of the reciprocating rod 606. The reciprocating plate 608 slides between the inner walls of the first filter plate 601. Since the first filter plate 601 is provided with a pressure filtration structure, under the action of the second support screw rod 502, the first filter plate 601 moves upward. During the moving process, the output end of a reciprocating motor 607 drives the driving gear 603 to rotate. The driving gear 603 drives the two half gears 605 to rotate synchronously through the two output gears 604. Since the teeth of the half gears 605 are engaged with the ring teeth of the reciprocating rod 606 and the orientations of the two half gears 605 are the same, the two half gears 605 drive the reciprocating rod 606 to move upward and downward continuously during the rotation process. The reciprocating rod 606 drives the reciprocating plate 608 to move up and down between the inner walls of the first filter plate 601 during the movement process. During the pressure filtration process, the sludge close to the first filter plate 601 can flow, avoiding the situation that the sludge coagulates and affects the filtration effect of the first filter plate 601. The size of [the pressure filtration mechanism 6] is matched with the size of the separation box 2. The second support screw rod 502 penetrates through one side of the first filter plate 601 and is threadedly connected thereto. All four second limiting rods 504 penetrate through the first filter plate 601. Four second limiting rods 504 restrict the first filter plate 601 to move only in a straight up and down direction, ensuring the stability of the first filter plate 601 during the filtration process, which helps to achieve a more precise filtration operation for the solid-liquid mixture. Due to the presence of the first filter plate 601, the size of the first filter plate 601 matches that of the separation tank 2, enabling large-area filtration of the solid-liquid mixture. The threaded connection with the second support screw 502 and the penetration of the second limiting rod 504 allow the position of the first filter plate 601 to be precisely adjusted as needed, adapting to the solid-liquid separation requirements for different amounts of sludge and improving the filtration efficiency and quality.

[0022] Two sealing shells 7 are fixedly installed at the threaded connection positions of the pressing plate 401 and the first filter plate 601 with the first support screw 302 and the second support screw 502 respectively. The sealing shells 7 are of a hollow design. The first support screw 302 and the first limiting rod 304 penetrate through the sealing shell 7 connected to the pressing plate 401, and the second support screw 502 and the second limiting rod 504 penetrate through the sealing shell 7 connected to the first filter plate 601. During the up and down movement of the pressing plate 401 and the first filter plate 601, it can effectively prevent the leakage of the solid-liquid mixture at the threaded connection.

[0023] Above the base 1, a filter tank 8 is fixedly installed on one side of the separation tank 2. Above the base 1, a suction pump 9 is fixedly installed between the separation tank 2 and the filter tank 8. The input end of the suction pump 9 is connected to a position near the bottom of the separation tank 2. The output end of the suction pump 9 is fixedly connected to a connecting pipe 10. The end of the connecting pipe 10 away from the suction pump 9 is connected to the top of the filter tank 8. Through the cooperation between the suction pump 9 and the connecting pipe 10, the suction pump 9 can suck the liquid near the bottom of the separation tank 2 through the connecting pipe 10 into the filter tank 8, realizing the transfer of the liquid between two different treatment processes, with convenient operation. The filter tank 8 is used to further process the liquid pumped out from the separation tank 2. The liquid entering its interior is secondarily filtered by the second filter plate 12. The liquid after the first solid-liquid separation may still contain some fine impurities, and the secondary filtration can further remove these impurities, thereby improving the purity of the liquid.

[0024] Two fixing brackets 11 are fixedly installed between the inner walls of the filter tank 8. The number of the fixing brackets 11 is two. A second filter plate 12 is provided on one side of the filter tank 8. The second filter plate 12 penetrates through one side of the filter tank 8 and is slidably pulled between the two fixing brackets 11 through a chute and slider structure. Through the pulling method, it is convenient to clean, replace, etc. the second filter plate 12, improving the flexibility and filtration efficiency of the filter tank 8.

[0025] A flow guide plate 13 is fixedly installed at the bottom of the filtration box 8. The flow guide plate 13 is designed in an inclined manner. A drain port 14 is provided at a position near the bottom of the filtration box 8. The inclined direction of the flow guide plate 13 faces the direction of the drain port 14. Due to the provision of the flow guide plate 13, the inclined design of the flow guide plate 13 can guide the liquid after secondary filtration to smoothly flow towards the drain port 14, preventing the liquid from accumulating at the bottom of the filtration box 8. At the same time, the cooperation of the drain port 14 and the flow guide plate 13 enables the liquid after secondary filtration to be discharged from the filtration box 8 in a timely and smooth manner, avoiding problems such as liquid backflow and ensuring the normal operation of the filtration box 8.

[0026] The working principle of the present invention is as follows: When using this device, the sewage sludge to be solid-liquid separated is injected into the separation box 2 through the injection port 18. After the sewage sludge enters the separation box 2, it is located above the first filter plate 601. The first support screw 302 of the first adjustment mechanism 3 rotates under the drive of the first control motor 303, causing the pressing plate 401 to press down. The first filter plate 601 moves upward under the cooperation of the second support screw 502 and the second control motor 503 of the second adjustment mechanism 5. The pressing plate 401 and the first filter plate 601 cooperate to squeeze and perform the operation of solid-liquid separation on the sewage sludge. The output end of the reciprocating motor 607 drives the driving gear 603 to rotate. The driving gear 603 drives two half gears 605 to rotate through two output gears 604. Under the action of the two half gears 605, the reciprocating rod 606 continuously moves up and down on the inner wall of the chassis 602, driving the reciprocating plate 608 to move up and down on the inner wall of the first filter plate 601, preventing the sludge adhering to the first filter plate 601 from coagulating. The output motor 404 drives the driving gear 402 to rotate. The driving gear 402 rotates to drive three driven gears 403 meshing with it to rotate, thereby driving four stirring screws 405 to rotate. The stirring screws 405 are between the pressing plate 401 and the first filter plate 601, and convey the sewage sludge near the pressing plate 401 towards the first filter plate 601, enabling the sewage sludge between the pressing plate 401 and the first filter plate 601 to be fully and evenly squeezed for solid-liquid separation. The liquid after solid-liquid separation falls to the bottom of the separation box 2 under the action of gravity through the first filter plate 601. The suction pump 9 sucks these liquids and transports them to the filtration box 8 through the connecting pipe 10. The liquid in the filtration box 8 is first filtered twice by the second filter plate 12. The liquid after re-filtration falls to the bottom of the filtration box 8 and is discharged through the drain port 14. After the solid-liquid separation treatment is completed, the telescopic rod 16 contracts and drives the sealing plate 15 to rotate and open through the connecting block 17, thereby cleaning the impurities in the separation box 2. Then, the second filter plate 12 is taken out by pulling, and the impurities filtered out by the second filter plate 12 are cleaned to use this device.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0029] In the present invention, unless otherwise clearly defined and limited, the terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one solution", "some solutions", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more solutions or examples.

Claims

1. A solid-liquid separation treatment device based on the utilization of sewage sludge, comprising a base (1), characterized in that: Above the base (1), a separation box (2) is fixedly connected. On one inner wall of the separation box (2), a first adjustment mechanism (3) is provided. The first adjustment mechanism (3) includes a first fixed plate (301). The number of the first fixed plates (301) is two and they are fixedly installed on the inner wall of the separation box (2). A first support screw (302) is rotatably connected between the two first fixed plates (301). At the top of the separation box (2), a first control motor (303) is fixedly installed. The output end of the first control motor (303) penetrates through the top of the separation box (2) and one of the first fixed plates (301) and is connected to one end of the first support screw (302). At the four corners between the two first fixed plates (301), four first limiting rods (304) are respectively fixedly connected. On one side of the first adjustment mechanism (3), an extrusion structure (4) is provided. The extrusion structure (4) includes a pressing plate (401). The size of the pressing plate (401) is adapted to the size of the separation box (2). The pressing plate (401) fits on the inner wall of the separation box (2). The first support screw (302) penetrates through the pressing plate (401) and is in threaded connection with the pressing plate (401). The four first limiting rods (304) penetrate through the pressing plate (401). Below the pressing plate (401) and at its central position, a driving gear (402) is rotatably connected. Below the pressing plate (401) and outside the driving gear (402), three driven gears (403) are respectively rotatably connected. The driving gear (402) meshes with the three driven gears (403). At the top of the pressing plate (401), an output motor (404) is fixedly installed. The output end of the output motor (404) is connected to one end of the driving gear (402). At the central positions of the driving gear (402) and the three driven gears (403), four stirring screws (405) are respectively fixedly connected. Below the pressing plate (401), a protective shell (406) is fixedly installed. The protective shell (406) sleeves on the outer walls of the driving gear (402) and the three driven gears (403).

2. The solid-liquid separation treatment device based on sewage sludge utilization according to claim 1, wherein: On the inner wall of the separation box (2) and below the first adjustment mechanism (3), a second adjustment mechanism (5) is provided. The second adjustment mechanism (5) includes a second fixed plate (501). The number of the second fixed plates (501) is two and they are fixedly installed on one inner wall of the separation box (2). At the central position between the two second fixed plates (501), a second support screw (502) is rotatably connected. At the bottom of the separation box (2), a second control motor (503) is fixedly installed. The output end of the second control motor (503) is connected to one end of the second support screw (502). At the four corners between the two second fixed plates (501), four second limiting rods (504) are respectively fixedly installed.

3. The solid-liquid separation treatment equipment based on the utilization of sewage sludge according to claim 2, wherein: On one side of the second adjusting mechanism (5), a pressure filtration mechanism (6) is provided. The pressure filtration mechanism (6) includes a first filter plate (601). On one side of the first filter plate (601), a machine box (602) is fixedly installed. Inside the inner wall of the machine box (602), a driving gear (603) is rotatably connected through a sealing shaft. On both sides of the driving gear (603) inside the inner wall of the machine box (602), two output gears (604) are respectively rotatably connected through sealing shafts. Both output gears (604) are meshed with the driving gear (603). At the end parts of the two output gears (604), two half gears (605) are respectively fixedly connected. The orientations of the two half gears (605) are the same. A reciprocating rod (606) is slidably connected between the inner walls of the machine box (602). The reciprocating rod (606) penetrates through the top and bottom of the machine box (602). The teeth of the two half gears (605) are meshed with the ring teeth of the reciprocating rod (606). At the top of the reciprocating rod (606), a reciprocating plate (608) is fixedly connected. The reciprocating plate (608) slides between the inner walls of the first filter plate (601). The size of the first filter plate (601) matches the size of the separation box (2). The second support screw rod (502) penetrates through one side of the first filter plate (601) and is threadedly connected thereto. All four second limiting rods (504) penetrate through the first filter plate (601).

4. The solid-liquid separation treatment device based on sewage sludge utilization according to claim 3, wherein: At the threaded connection positions of the pressing plate (401) and the first filter plate (601) with the first support screw rod (302) and the second support screw rod (502), two sealing shells (7) are respectively fixedly installed. The sealing shells (7) are of a hollow design. The first support screw rod (302) and the first limiting rod (304) penetrate through the sealing shell (7) connected to the pressing plate (401). The second support screw rod (502) and the second limiting rod (504) penetrate through the sealing shell (7) connected to the first filter plate (601).

5. A solid-liquid separation treatment device based on the utilization of sewage sludge according to claim 1, characterized in that: Above the base (1) and on one side of the separation box (2), a filtration box (8) is fixedly installed. Above the base (1) and between the separation box (2) and the filtration box (8), a suction pump (9) is fixedly installed. The input end of the suction pump (9) is connected to a position near the bottom of the separation box (2). The output end of the suction pump (9) is fixedly connected to a connecting pipe (10). One end of the connecting pipe (10) away from the suction pump (9) is connected to the top end of the filtration box (8).

6. The solid-liquid separation treatment device based on sewage sludge utilization according to claim 5, characterized in that: Between the inner walls of the filtration box (8), a fixed bracket (11) is fixedly installed. The number of the fixed brackets (11) is two. On one side of the filtration box (8), a second filter plate (12) is provided. The second filter plate (12) penetrates through one side of the filtration box (8) and slides between the two fixed brackets (11).

7. A solid-liquid separation treatment device based on the utilization of sewage sludge according to claim 5, characterized in that: At the bottom of the filtration box (8), a guide plate (13) is fixedly installed. The guide plate (13) is of an inclined design. At a position near the bottom of the filtration box (8), a drain port (14) is opened. The inclined direction of the guide plate (13) faces the direction of the drain port (14).

8. A solid-liquid separation treatment device based on the utilization of sewage sludge according to claim 1, characterized in that: One side of the separation box (2) is rotatably connected with a sealing plate (15) through a hinge. One side of the sealing plate (15) is provided with a telescopic rod (16). The two ends of the telescopic rod (16) are respectively rotatably connected with two connecting blocks (17). One of the connecting blocks (17) is connected to one side of the separation box (2), and the other connecting block (17) is connected to the central position of the sealing plate (15). An injection port (18) is formed on the outer side of the separation box (2).

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