A solid-liquid separation device for treating black water

Abstract

The present invention relates to the field of sewage treatment, and specifically to a solid-liquid separation device for treating black water, which solves the problems of cleaning while ensuring the separation efficiency and facilitating continuous separation. It includes a separation tank and a stepping motor. A feed tank is installed at the top of the separation tank, and the interior of the feed tank is in communication with the interior of the separation tank. A leakage tank is slidably connected inside the separation tank. Through two extrusion plates, mutual extrusion can be achieved in the present invention, enabling the black water inside to be extruded and separated into solid and liquid. The mutual extrusion of the two plates can ensure the separation effect. When extruding, the moisture in the feces can be fully separated and discharged through the liquid material holes. After discharging the moisture, the solid material can be automatically discharged, and at the same time, the outer wall of the extrusion plate can be cleaned, realizing the function of automatic cleaning. Moreover, the liquid material discharge, solid material discharge, and cleaning of this device can achieve a linkage effect, and the two materials are discharged separately, avoiding the phenomenon of mutual mixing after separation.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly relates to a solid-liquid separation device for treating black water. Background Art

[0002] Black water refers to human feces, urine, livestock and poultry breeding urine and flushing water, which is one of the main sources of rural domestic sewage. Research shows that 50%-60% of the chemical oxygen demand (COD), 80%-90% of nitrogen, 50%-57% of phosphorus and most pathogenic microorganisms in domestic sewage come from black water. If the toilet black water without effective treatment is directly discharged into water bodies and soil, it will pose a serious threat to the ecological environment, and further affect food and drinking water safety.

[0003] In the prior art, there are many deficiencies in the equipment for treating black water. These equipment not only have low treatment efficiency, but also have poor separation effect of dry and wet. Due to the relatively complex internal structure, it is difficult to clean inside, and it requires frequent manual maintenance and cleaning during use, which affects the separation efficiency and cannot achieve continuous separation.

[0004] Therefore, the present invention provides a solid-liquid separation device for treating black water to solve the above problems. Summary of the Invention

[0005] In view of the above situation, in order to overcome the deficiencies of the prior art, the present invention provides a solid-liquid separation device for treating black water to solve the problems that can clean while ensuring the separation efficiency and is convenient for continuous separation.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A solid-liquid separation device for treating black water, comprising a separation tank and a stepping motor. A feed tank is installed at the top of the separation tank, and the feed tank is in communication with the interior of the separation tank. A leakage tank is slidably connected inside the separation tank. Both ends of the leakage tank are connected with extrusion plates through rubber. The extrusion plates are driven and connected through a reciprocating lead screw. One end of the reciprocating lead screw is fixedly connected to the output end of the stepping motor, and the stepping motor is fixedly installed on the side wall of the separation tank. A scraper is arranged on the outer wall of the extrusion plate, and a fixed inclined plate is fixedly installed at the lower part of the inner side wall of the separation tank; The bottom of the leakage tank abuts against a filter tank, and the filter tank is slidably connected to the inner side wall of the separation tank. The filter tank matches the fixed inclined plate. A solid material hole is opened at one end of the bottom of the separation tank, and a liquid material hole is opened at the other end of the bottom of the separation tank; Through the mutual extrusion of two extrusion plates, the black water inside can be squeezed and separated into solid and liquid. The mutual extrusion of the two plates can ensure the separation effect. When squeezing, the water in the feces can be fully separated and discharged through the liquid material hole. After discharging the water, the solid material can be automatically discharged, and at the same time, the outer wall of the extrusion plate is cleaned to realize the function of automatic cleaning. Moreover, the liquid material discharge, solid material discharge and cleaning of this device can achieve a linkage effect, and the two materials are discharged separately to avoid the phenomenon of mutual mixing after separation.

[0008] Preferably, a diversion plate is fixedly installed on the inner bottom wall of the separation tank. The height of the diversion plate increases sequentially from one end of the solid material hole to the other end of the liquid material hole. The solid material hole is hermetically connected to a solid material box in a conducting manner, and the liquid material hole is hermetically connected to a liquid material pipe in a conducting manner; The liquid material hole of this device matches the filter tank. When the filter tank filters and drains water, it is discharged through the liquid material hole. When the filter tank is separated from the leakage tank and abuts against it, the solid material falls onto the upper part of the diversion plate and then is discharged through the solid material hole, and the two do not affect each other.

[0009] Preferably, a drain pipe is hermetically connected to the side wall of the filter tank. The water inlet end of the drain pipe is located inside the filter tank, and the water outlet end of the drain pipe is located at the other end of the outer wall of the drain pipe. A compression spring is fixedly installed at the other end of the drain pipe, and the other end of the compression spring is fixedly installed on the inner side wall of the separation tank.

[0010] Preferably, a sliding column is fixedly installed on the outer wall of the drain pipe. The bottom of the sliding column is located inside a sliding box, and the sliding box is slidably connected to the inner bottom wall of the separation tank. A top extension spring is fixedly installed at the bottom of the sliding column, and the other end of the top extension spring is fixedly connected to the inner bottom wall of the sliding box; When this device is in use, when the leakage tank abuts against the filter tank and descends, at this time, the filter tank will descend synchronously with the leakage tank, the sliding column slides into the sliding box, and the top extension spring is in a compressed state.

[0011] Preferably, a filter screen is fixedly installed on the outer wall of the top of the filter box; a scraping plate is slidably connected to the inner side wall of the leakage box, a scraping spring is fixedly installed on the top of the scraping plate, the top of the scraping spring is fixedly connected to the inner top wall of the side wall of the leakage box, a brush is arranged at the bottom of the scraping plate, and the brush abuts against the upper surface of the filter screen; the leakage box of the device abuts against the top of the filter box, the liquid in the upper part of the leakage box will be filtered through the filter screen, the liquid is filtered through the filter box and then discharged. At the same time, when the filter box of the device moves left and right, in order to avoid solid waste remaining in its upper part, the scraping plate of the device always abuts against the upper surface of the filter box. When the filter box slides left and right, the scraping plate cleans the upper part of the filter box to ensure the cleanliness of its upper part. At the same time, a brush is arranged at the bottom of the scraping plate, which can clean the filter screen and avoid blockage. The cleaning of the filter screen of the device can form a linkage effect with the displacement of the filter box.

[0012] Preferably, the height of the fixed inclined plate increases sequentially from one end of the liquid material hole to one end of the solid material hole, and the number of the fixed inclined plates is two, and the two fixed inclined plates are respectively located on the inner side walls of the separation box.

[0013] Preferably, a fixed cylinder is fixedly installed on the inner side wall of the filter box. A jacking shaft is slidably connected inside the fixed cylinder. One end of the jacking shaft is located outside the side wall of the filter box, and the other end of the jacking shaft is fixedly installed with a jacking plate. A jacking spring is sleeved on the outer wall of the other end of the jacking shaft, and the other end of the jacking spring is fixedly connected to the outer wall of one end of the fixed cylinder. The outer wall of the jacking shaft is provided with a first friction pattern; a top-up shaft is slidably connected to the inner bottom wall of the side wall of the filter box. The top of the top-up shaft is fixedly installed with a jacking inclined block, and the height of the jacking inclined block increases sequentially from outside to inside. The jacking inclined block is matched with the jacking plate. The outer wall of the top-up shaft is provided with a second friction pattern, and the bottom of the top-up shaft is located outside the bottom of the filter box; one end of the jacking shaft located outside the side wall of the filter box does not extend in the initial state; when the device is in use, first start the stepping motor. At this time, the reciprocating lead screw will drive the extrusion plate to displace relatively. The extrusion plate extrudes the black water, and the extrusion plate bends inwards. The extrusion plate and the leakage box form a concave shape, with a gap left in the middle to facilitate the retention of solid waste. After the water inside is compressed and discharged, it flows into the filter box and is discharged from the device by the filter box. When the extrusion plate displaces relatively, at this time, the leakage box will drive the filter box to displace downward. The bottom of the leakage box is in contact with the upper part of the filter box, and the bottom of the scraping plate is in contact with the top of the filter box. When the extrusion plate forms a concave shape, the bottom of the filter box is in contact with the upper part of the guide plate. At this time, the top-up shaft is in contact with the bottom of the guide plate. The top-up shaft displaces upward, driving the jacking inclined block to displace upward and contact the jacking plate. The jacking plate is forced to displace outwards, and the jacking spring is compressed. At this time, the jacking shaft extends outside the filter box, and at this time, the jacking shaft is located below the inclined surface of the fixed inclined plate and is in contact with the inclined surface of the fixed inclined plate. When the extrusion plate resets and the leakage box resets upward, at this time, the filter box resets under the action of the sliding box. At this time, because the jacking shaft is in contact with the inclined end of the fixed inclined plate, the filter box will displace to the left along the inclined end of the fixed inclined plate. At the same time, the scraping plate presses against and scrapes the top of the filter net. Under the action of the first friction pattern and the second friction pattern, the jacking shaft slowly resets. The jacking shaft and the top-up shaft are replaced regularly. At the same time, when the resistance of the friction pattern decreases, there will be no mixing phenomenon. At this time, the bottom of the leakage box faces the guide plate, and the solid waste between the extrusion plate and the leakage box is discharged and discharged through the guide plate; through the setting of the jacking shaft in this device, when the filter box descends, it is in the state of discharging water at this time. When it reaches the bottom, the water is in the state of being completely extruded. At this time, the jacking shaft can drive the filter box to displace, realizing the discharge of fixed materials, enabling the device to automatically separate and discharge dry and wet materials, forming an integrated operation of extrusion and dry and wet discharge, and making the discharge and extrusion form a linkage effect.

[0014] Preferably, a threaded block is fixedly installed on the outer wall of the extrusion plate, and the threaded block is threadedly connected to the outer wall of the reciprocating lead screw. The threads at both ends of the reciprocating lead screw are opposite; when the stepper motor rotates, the reciprocating lead screw drives the threaded block to displace. When it reaches the end, the two threaded blocks displace in opposite directions.

[0015] Preferably, a chute is formed on the outer wall of the extrusion plate. A folding plate is arranged on the outer wall of the chute. A bidirectional lead screw is rotatably connected inside the chute. A connecting block is threadedly connected to the outer wall of the bidirectional lead screw. One end of the connecting block is fixedly connected to one end of the scraping plate, and the outer wall of the connecting block is connected to the folding plate; one end of the bidirectional lead screw is connected to a winding drum through a one-way bearing. A stretching cable is wound around the outer wall of the winding drum. The other end of the stretching cable is fixedly connected to the inner side wall of the separation box. A volute spring is fixedly installed on the outer wall of the winding drum, and the other end of the volute spring is fixedly connected to the inner wall of the chute; when the two extrusion plates displace relative to each other in this device, at this time the stretching cable will stretch the winding drum to rotate, and at this time the volute spring will be compressed, and the bidirectional lead screw will not rotate. When the extrusion plate resets, at this time the volute spring drives the bidirectional lead screw to reset and rotate, so as to realize the scraping and cleaning of the outer wall of the extrusion plate through the scraping plate, and realize the discharge of solid waste. The cleaning, discharging and extrusion of this device form a linkage effect.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. This device can realize the mutual extrusion of two extrusion plates, so that the black water inside is squeezed to separate solid and liquid. The mutual extrusion of the two plates can ensure the separation effect. When extruding, the water in the feces can be fully separated and discharged through the liquid material hole. After discharging the water, the solid material can be automatically discharged, and at the same time, the outer wall of the extrusion plate is cleaned, realizing the function of automatic cleaning. Moreover, the liquid material discharge, solid material discharge and cleaning of this device can achieve a linkage effect, and the two materials are discharged separately, avoiding the phenomenon of mutual mixing after separation.

[0018] 2. The top of the leakage box of this device abuts against the top of the filter box. The liquid in the upper part of the leakage box will be filtered through the filter screen, and the liquid is filtered through the filter box and then discharged. At the same time, when the filter box of this device moves left and right, in order to avoid solid waste remaining on its upper part, the scraping plate of this device always abuts against the upper surface of the filter box. When the filter box slides left and right, the scraping plate cleans the upper part of the filter box to ensure its upper cleanliness. At the same time, a brush is arranged at the bottom of the scraping plate, which can clean the filter screen and avoid the phenomenon of blockage. The cleaning of the filter screen of this device can form a linkage effect with the displacement of the filter box.

[0019] 3. With the setting of the jacking shaft in this device, when the filter box descends, it is in the state of discharging moisture. When it reaches the bottom, the moisture has been completely squeezed out. At this time, the jacking shaft can drive the filter box to displace, realizing the discharge of fixed materials, enabling this device to automatically separate and discharge wet and dry materials, forming an integrated operation of extrusion and wet-dry discharge, and making the discharge and extrusion form a linkage effect.

[0020] 4. When the two extrusion plates displace relative to each other in this device, the stretching cable will stretch the winding drum to rotate. At this time, the scroll spring will be compressed, and the bidirectional lead screw will not rotate. When the extrusion plate resets, the scroll spring drives the bidirectional lead screw to reset and rotate, realizing the scraping and cleaning of the outer wall of the extrusion plate by the scraper, and discharging solid waste. The cleaning, discharging, and extrusion of this device form a linkage effect. Description of the Drawings

[0021] Figure 1 It is a front view three-dimensional schematic diagram of the present invention.

[0022] Figure 2 It is a schematic cross-sectional view of the separation box of the present invention.

[0023] Figure 3 It is a schematic side view of the inside of the separation box of the present invention.

[0024] Figure 4 It is a schematic diagram of the mutually extruded state of the extrusion plates of the present invention.

[0025] Figure 5 It is a schematic diagram of the inside of the sliding box of the present invention.

[0026] Figure 6 It is a schematic cross-sectional view of the leakage box of the present invention.

[0027] Figure 7 It is a schematic cross-sectional view of the filter box of the present invention.

[0028] Figure 8 It is a schematic diagram of the connection between the fixed cylinder and the jacking shaft of the present invention.

[0029] Figure 9 It is a schematic diagram of the filter box after sliding of the present invention.

[0030] Figure 10 It is a schematic diagram of the outer wall of the bidirectional lead screw of the present invention.

[0031] In the figure: 1. Separation box; 2. Feed box; 3. Leakage box; 301. Scraping plate; 302. Scraping spring; 4. Extrusion plate; 401. Folding plate; 402. Bi-directional lead screw; 403. Connecting block; 404. Reel; 405. Tensile cable; 406. Volute spring; 5. Scraper; 6. Reciprocating lead screw; 601. Threaded block; 7. Stepper motor; 8. Fixed inclined plate; 9. Filter box; 901. Drain pipe; 902. Compression spring; 903. Sliding box; 904. Sliding column; 905. Top extension spring; 906. Filter screen; 907. Fixed cylinder; 908. Thrust shaft; 909. Thrust plate; 910. Thrust spring; 911. Friction pattern one; 912. Top shaft; 913. Thrust inclined block; 914. Friction pattern two; 10. Deflector; 11. Solid material hole; 12. Liquid material hole; 13. Solid material box; 14. Liquid material pipe. Detailed implementation manners

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0033] A solid-liquid separation device for treating black water, as shown in the attached Figure 1-4 figure, includes a separation box 1 and a stepper motor 7. A feed box 2 is installed at the top of the separation box 1. The feed box 2 is internally communicated with the separation box 1. A leakage box 3 is slidably connected inside the separation box 1. Both ends of the leakage box 3 are connected to an extrusion plate 4 through rubber. The extrusion plate 4 is driven and connected through a reciprocating lead screw 6. One end of the reciprocating lead screw 6 is fixedly connected to the output end of the stepper motor 7. The stepper motor 7 is fixedly installed on the side wall of the separation box 1. A scraper 5 is arranged on the outer wall of the extrusion plate 4. A fixed inclined plate 8 is fixedly installed at the lower part of the inner side wall of the separation box 1; the bottom of the leakage box 3 abuts against a filter box 9. The filter box 9 is slidably connected to the inner side wall of the separation box 1. The filter box 9 matches the fixed inclined plate 8. A solid material hole 11 is opened at one end of the bottom of the separation box 1, and a liquid material hole 12 is opened at the other end of the bottom of the separation box 1; through two extrusion plates 4, mutual extrusion can be realized, so that the black water inside is squeezed and separated into solid and liquid. The mutual extrusion of the two plates can ensure the separation effect. When squeezing, the water in the feces can be fully separated and discharged through the liquid material hole. After discharging the water, the solid material can be automatically discharged, and at the same time, the outer wall of the extrusion plate 4 is cleaned, realizing the function of automatic cleaning. Moreover, the liquid material discharge, solid material discharge and cleaning of the device can achieve a linkage effect, and the two materials are discharged separately, avoiding the phenomenon of mutual mixing after separation.

[0034] As shown in the attached Figure 1-3As shown, a diversion plate 10 is fixedly installed on the inner bottom wall of the separation box 1. The height of the diversion plate 10 increases successively from one end of the solid material hole 11 to the other end of the liquid material hole 12. The solid material hole 11 is hermetically and conductively connected to the solid material box 13, and the liquid material hole 12 is hermetically and conductively connected to the liquid material pipe 14. The liquid material hole 12 of this device is matched with the filter box 9. When the filter box 9 filters and drains water, it is discharged through the liquid material hole 12. When the filter box 9 is separated from and abuts against the leakage box 3, the solid material falls onto the upper part of the diversion plate 10 and is then discharged through the solid material hole 11, and the two do not affect each other.

[0035] As shown in the Figure 3 attachment, a drain pipe 901 is hermetically and conductively connected to the side wall of the filter box 9. The water inlet end of the drain pipe 901 is located inside the filter box 9, and the water outlet end of the drain pipe 901 is located at the other end of the outer wall of the drain pipe 901. A compression spring 902 is fixedly installed at the other end of the drain pipe 901, and the other end of the compression spring 902 is fixedly installed on the inner side wall of the separation box 1.

[0036] As shown in the Figure 3 and Figure 5 attachment, a sliding column 904 is fixedly installed on the outer wall of the drain pipe 901. The bottom of the sliding column 904 is located inside the sliding box 903. The sliding box 903 is slidably connected to the inner bottom wall of the separation box 1. A top extension spring 905 is fixedly installed at the bottom of the sliding column 904, and the other end of the top extension spring 905 is fixedly connected to the inner bottom wall of the sliding box 903. When this device is in use, when the leakage box 3 abuts against the filter box 9 and causes it to descend, at this time the filter box 9 will descend synchronously with the leakage box 3, the sliding column 904 slides into the inside of the sliding box 903, and the top extension spring 905 is in a compressed state.

[0037] As shown in the Figure 6 attachment, a filter net 906 is fixedly installed on the outer wall of the top of the filter box 9. A scraping plate 301 is slidably connected to the inner side wall of the leakage box 3. A scraping spring 302 is fixedly installed at the top of the scraping plate 301, and the top of the scraping spring 302 is fixedly connected to the inner top wall of the side wall of the leakage box 3. A brush is provided at the bottom of the scraping plate 301, and the brush abuts against the upper surface of the filter net 906. The top of the leakage box 3 of this device abuts against the top of the filter box 9. The liquid in the upper part of the leakage box 3 will be filtered through the filter net 906, and the liquid is filtered through the filter box 9 and then discharged. At the same time, when the filter box 9 of this device moves left and right, in order to prevent solid waste from remaining in its upper part, the scraping plate 301 of this device always abuts against the upper surface of the filter box 9. When the filter box 9 slides left and right, the scraping plate 301 cleans the upper part of the filter box 9 to ensure its upper cleanliness. At the same time, a brush is provided at the bottom of the scraping plate 301, which can clean the filter net 906 to avoid blockage. The cleaning of the filter net 906 of this device can form a linkage effect with the displacement of the filter box 9.

[0038] As shown in the appendix Figure 2-3 As shown, the height of the fixed inclined plate 8 increases successively from one end of the liquid material hole 12 to one end of the solid material hole 11. The number of the fixed inclined plates 8 is two, and the two fixed inclined plates 8 are respectively located on the inner side walls of the separation box 1.

[0039] As shown in the appendix Figure 7-9 As shown, a fixed cylinder 907 is fixedly installed on the inner side wall of the filtration box 9. A jacking shaft 908 is slidably connected inside the fixed cylinder 907. One end of the jacking shaft 908 is located outside the side wall of the filtration box 9. A jacking plate 909 is fixedly installed at the other end of the jacking shaft 908. A jacking spring 910 is sleeved on the outer wall of the other end of the jacking shaft 908. The other end of the jacking spring 910 is fixedly connected to the outer wall of one end of the fixed cylinder 907. A first friction pattern 911 is arranged on the outer wall of the jacking shaft 908;

[0040] A top support shaft 912 is slidably connected to the inner bottom wall of the side wall of the filter box 9. A top support inclined block 913 is fixedly installed at the top of the top support shaft 912. The height of the top support inclined block 913 increases sequentially from outside to inside. The top support inclined block 913 matches the top support plate 909. Anti-friction lines II 914 are arranged on the outer wall of the top support shaft 912. The bottom of the top support shaft 912 is located outside the bottom of the filter box 9. One end of the top support shaft 908 located outside the side wall of the filter box 9 does not extend out in the initial state. When the device is in use, first, by starting the stepper motor 7, at this time, the reciprocating lead screw 6 will drive the extrusion plate 4 to displace relatively. The extrusion plate 4 extrudes the black water. The extrusion plate 4 bends inwards. The extrusion plate 4 and the leakage box 3 form a concave shape, and there is a gap in the middle to facilitate the retention of solid waste. After the moisture inside is compressed out, it flows into the filter box 9 and is discharged from the device by the filter box 9. When the extrusion plate 4 displaces relatively, at this time, the leakage box 3 will drive the filter box 9 to displace downward. The bottom of the leakage box 3 abuts against the upper part of the filter box 9 in contact. The bottom of the scraping plate 301 abuts against the top of the filter box 9. When the extrusion plate 4 forms a concave shape, the bottom of the filter box 9 abuts against the upper part of the diversion plate 10. At this time, the top support shaft 912 abuts against the bottom of the diversion plate 10. The top support shaft 912 displaces upward, driving the top support inclined block 913 to displace upward and abut against the top support plate 909. The top support plate 909 is forced to displace outwards, and the top support spring 910 is compressed. At this time, the top support shaft 908 extends out of the filter box 9, and at this time, the top support shaft 908 is located below the inclined surface of the fixed inclined plate 8. The top support shaft 908 abuts against the inclined surface of the fixed inclined plate 8. When the extrusion plate 4 resets and the leakage box 3 displaces upward to reset, at this time, the filter box 9 resets under the action of the sliding box 903. At this time, because the top support shaft 908 abuts against the inclined surface end of the fixed inclined plate 8, the filter box 9 will displace leftward along the inclined surface end of the fixed inclined plate 8. At the same time, the scraping plate 301 abuts against and scrapes the top of the filter net 906. Under the action of the anti-friction lines I 911 and the anti-friction lines II 914, the top support shaft 908 slowly resets. The top support shaft 908 and the top support shaft 912 are replaced regularly. At the same time, when the anti-friction resistance decreases, there will be no mixing phenomenon. At this time, the bottom of the leakage box 3 faces the diversion plate 10, and the solid waste between the extrusion plate 4 and the leakage box 3 is discharged and discharged through the diversion plate 10. Through the setting of the top support shaft 908 in this device, when the filter box 9 descends, it is in the state of discharging moisture at this time. When it reaches the bottommost part, the moisture is in the state of being completely extruded. At this time, the top support shaft 908 can drive the filter box 9 to displace, realizing the discharge of fixed materials, enabling this device to automatically separate and discharge dry and wet materials, forming an integrated operation of extrusion and dry and wet discharge, and making the discharge and extrusion form a linkage effect.

[0041] As attached Figure 2As shown, a threaded block 601 is fixedly installed on the outer wall of the extrusion plate 4. The threaded block 601 is threadedly connected to the outer wall of the reciprocating lead screw 6, and the threads at both ends of the reciprocating lead screw 6 are opposite. When the stepper motor 7 rotates, the reciprocating lead screw 6 drives the threaded block 601 to displace. When it reaches the end, the two threaded blocks 601 displace in opposite directions.

[0042] As shown in the appendix Figure 1 and the appendix Figure 10 As shown, a chute is provided on the outer wall of the extrusion plate 4. A folding plate 401 is arranged on the outer wall of the chute. A bidirectional lead screw 402 is rotatably connected inside the chute. A connecting block 403 is threadedly connected to the outer wall of the bidirectional lead screw 402. One end of the connecting block 403 is fixedly connected to one end of the scraping plate 5, and the outer wall of the connecting block 403 is connected to the folding plate 401. One end of the bidirectional lead screw 402 is connected to a winding drum 404 through a one-way bearing. A tensile cable 405 is wound around the outer wall of the winding drum 404. The other end of the tensile cable 405 is fixedly connected to the inner side wall of the separation box 1. A volute spring 406 is fixedly installed on the outer wall of the winding drum 404, and the other end of the volute spring 406 is fixedly connected to the inner wall of the chute. When the two extrusion plates 4 displace relative to each other in this device, at this time, the tensile cable 405 will stretch the winding drum 404 to rotate, and at this time, the volute spring 406 will be compressed, and the bidirectional lead screw 402 will not rotate. When the extrusion plate 4 returns to its original position, at this time, the volute spring 406 drives the bidirectional lead screw 402 to rotate back to its original position, realizing the scraping and cleaning of the outer wall of the extrusion plate 4 through the scraping plate 5, and realizing the discharge of solid waste. The cleaning, discharging, and extrusion of this device form a linkage effect.

[0043] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A solid-liquid separation device for treating black water, comprising a separation tank (1) and a stepping motor (7). A feed tank (2) is installed at the top of the separation tank (1), and the feed tank (2) is in communication with the interior of the separation tank (1). It is characterized in that, A leakage box (3) is slidably connected inside the separation box (1). Both ends of the leakage box (3) are connected to a pressing plate (4) through rubber. The pressing plate (4) is drivingly connected through a reciprocating lead screw (6). One end of the reciprocating lead screw (6) is fixedly connected to the output end of the stepping motor (7). The stepping motor (7) is fixedly installed on the side wall of the separation box (1). A scraping plate (5) is arranged on the outer wall of the pressing plate (4). A fixed inclined plate (8) is fixedly installed at the lower part of the inner side wall of the separation box (1). The bottom of the leakage box (3) abuts against a filtering box (9). The filtering box (9) is slidably connected to the inner side wall of the separation box (1). The filtering box (9) is matched with the fixed inclined plate (8). A solid material hole (11) is opened at one end of the bottom of the separation box (1). A liquid material hole (12) is opened at the other end of the bottom of the separation box (1). A fixed cylinder (907) is fixedly installed on the inner side wall of the filtering box (9). A jacking shaft (908) is slidably connected inside the fixed cylinder (907). One end of the jacking shaft (908) is located outside the side wall of the filtering box (9). A jacking plate (909) is fixedly installed at the other end of the jacking shaft (908). A jacking spring (910) is sleeved on the outer wall of the other end of the jacking shaft (908). The other end of the jacking spring (910) is fixedly connected to the outer wall of one end of the fixed cylinder (907). A first friction pattern (911) is arranged on the outer wall of the jacking shaft (908). A top-up shaft (912) is slidably connected to the inner bottom wall of the side wall of the filtering box (9). A jacking inclined block (913) is fixedly installed at the top of the top-up shaft (912). The height of the jacking inclined block (913) increases sequentially from outside to inside. The jacking inclined block (913) is matched with the jacking plate (909). A second friction pattern (914) is arranged on the outer wall of the top-up shaft (912). The bottom of the top-up shaft (912) is located outside the bottom of the filtering box (9).

2. The solid-liquid separation device for treating black water according to claim 1, wherein, A guide plate (10) is fixedly installed on the inner bottom wall of the separation box (1). The height of the guide plate (10) increases sequentially from one end of the solid material hole (11) to the other end of the liquid material hole (12). The solid material hole (11) is hermetically and conductively connected to a solid material box (13). The liquid material hole (12) is hermetically and conductively connected to a liquid material pipe (14).

3. The solid-liquid separation device for treating black water according to claim 2, characterized in that, A drain pipe (901) is hermetically and conductively connected to the side wall of the filtering box (9). The water inlet end of the drain pipe (901) is located inside the filtering box (9). The water outlet end of the drain pipe (901) is located at the other end of the outer wall of the drain pipe (901). A compression spring (902) is fixedly installed at the other end of the drain pipe (901). The other end of the compression spring (902) is fixedly installed on the inner side wall of the separation box (1).

4. The solid-liquid separation device for treating black water according to claim 3, wherein A sliding column (904) is fixedly installed on the outer wall of the drain pipe (901). The bottom of the sliding column (904) is located inside the sliding box (903). The sliding box (903) is slidably connected to the inner bottom wall of the separation box (1). A top extension spring (905) is fixedly installed at the bottom of the sliding column (904), and the other end of the top extension spring (905) is fixedly connected to the inner bottom wall of the sliding box (903).

5. The solid-liquid separation device for treating black water according to claim 4, characterized in that, A filter screen (906) is fixedly installed on the outer wall of the top of the filter box (9). A scraping plate (301) is slidably connected to the inner side wall of the leakage box (3). A scraping spring (302) is fixedly installed at the top of the scraping plate (301). The top of the scraping spring (302) is fixedly connected to the inner top wall of the side wall of the leakage box (3). A brush is arranged at the bottom of the scraping plate (301), and the brush abuts against the upper surface of the filter screen (906).

6. The solid-liquid separation device for treating black water according to claim 5, characterized in that, The height of the fixed inclined plate (8) gradually increases from one end of the liquid material hole (12) to one end of the solid material hole (11). The number of the fixed inclined plates (8) is two, and the two fixed inclined plates (8) are respectively located on the inner side walls of the separation box (1).

7. A solid-liquid separation device for treating black water according to claim 1, characterized in that, A threaded block (601) is fixedly installed on the outer wall of the extrusion plate (4). The threaded block (601) is threadedly connected to the outer wall of the reciprocating lead screw (6), and the threads at both ends of the reciprocating lead screw (6) are opposite.

8. A solid-liquid separation device for treating black water according to claim 7, characterized in that, A chute is formed on the outer wall of the extrusion plate (4). A folding plate (401) is arranged on the outer wall of the chute. A bidirectional lead screw (402) is rotatably connected inside the chute. A connecting block (403) is threadedly connected to the outer wall of the bidirectional lead screw (402). One end of the connecting block (403) is fixedly connected to one end of the scraping plate (5), and the outer wall of the connecting block (403) is connected to the folding plate (401). One end of the bidirectional lead screw (402) is connected to a winding drum (404) through a one-way bearing. A stretching cable (405) is wound around the outer wall of the winding drum (404). The other end of the stretching cable (405) is fixedly connected to the inner side wall of the separation box (1). A scroll spring (406) is fixedly installed on the outer wall of the winding drum (404), and the other end of the scroll spring (406) is fixedly connected to the inner wall of the chute.

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