Equipment and method for crushing high-viscosity solid waste with high-pressure water and removing impurities

Abstract

The invention discloses equipment and method for crushing high-viscosity solid waste with high-pressure water and removing impurities, the equipment comprises a mud block storage and decomposition bin, a mud impurity screening chain machine, a high-pressure water pump and a water purification tank, the mud block storage and decomposition bin is fixed right above the mud impurity screening chain machine and is used for storing mud blocks to be decomposed and removed impurities, and the high-pressure water pump is fixed above the mud impurity screening chain machine; the two high-pressure water pumps are communicated with the water purification tank and provide pressure water for the two sets of water spraying pipes on the high-pressure water jet cutter assembly in the mud block storage and decomposition bin respectively, the high-pressure water is used for decomposing impurity-removed mud blocks to be decomposed into small mud blocks from the two sides, and impurities contained in the mud blocks are stripped out. The mud impurity screening chain machine separates broken mud blocks smaller than a certain size after high-pressure water is broken, and impurities stripped by the high-pressure water are conveyed to one block for centralized treatment. High-viscosity solid waste can be crushed into small blocks through high-pressure water, impurities in the high-viscosity solid waste can be cleared away, next-step treatment of the high-viscosity solid waste is facilitated, recycling of the solid waste is improved, and the environment-friendly effect is good.

Description

Technical Field

[0001] This invention relates to an environmentally friendly solid waste treatment technology, and in particular to a device and method for high-pressure water crushing of high-viscosity solid waste and removal of impurities. Background Technology

[0002] Data shows that the annual output of high-viscosity solid waste from various foundation excavations and river dredging in southern and coastal areas is approximately 2 billion tons, with a cumulative stockpile exceeding 30 billion tons, occupying over 1 million hectares of land and placing immense pressure on the environment. Low-strength fluidized bed material based on solid waste is a new application for turning high-viscosity solid waste into a valuable resource.

[0003] Solid waste-based low-strength fluid fill material: This type of fill material uses high-viscosity solid waste (soil) or fine particles of industrial and mining solid waste as the main base material, adding cementitious materials, admixtures, and water. After thorough mixing, it can be transported via pipeline / pump, self-compacted, and hardened to achieve a certain strength. "Low strength" refers to its lower hardened strength compared to concrete and mortar (28-day compressive strength is typically below 10 MPa), often compared to the bearing capacity of soil; therefore, high strength is not required. ACI 229R specifies that the 28-day unconfined compressive strength of Controlled Low-Strength Materials (CLSM) should not exceed 8.3 MPa; GB / T51450-2022, "Technical Standard for Backfill Engineering in Metal and Non-metal Mines," states that the strength of mine backfill is generally 2–4 MPa; and the design strength of backfill materials in municipal engineering is mostly 0.3–1.0 MPa. Because the required strength is not high, there is no need for strict raw material and mixing ratio parameters. Its material composition has diverse and non-standard characteristics, making it very suitable for the recycling of high-viscosity solid waste.

[0004] Currently, there are significant problems with the on-site use of high-viscosity solid waste, mainly in the following aspects: First, high-viscosity solid waste is primarily in block form with extremely strong self-adhesion (binding force), making it difficult to break it down in water through stirring in a short time; Second, high-viscosity solid waste contains many impurities, such as stones (cement blocks), branches, steel bars, plastic products, and shredded clothing, which are difficult to remove quickly and promptly using equipment. These two difficulties are the main reasons limiting the application of high-viscosity solid waste. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing calibration technology and provide a high-pressure water crushing and impurity removal device and method for high-viscosity solid waste that is reasonably designed, has good crushing effect, and can collect impurities.

[0006] The technical solution of this invention is: A device for crushing high-viscosity solid waste and removing impurities using high-pressure water, comprising a mud block storage and decomposition chamber, a mud and impurity screening chain machine, a high-pressure water pump, and a clean water tank. The mud block storage and decomposition chamber is fixed directly above the mud and impurity screening chain machine. The mud block storage and decomposition chamber includes a mud storage bin and a high-pressure water jet assembly. The mud storage bin is a rectangular cavity with openings at the top and bottom to accommodate mud blocks to be decomposed and impurities removed. Two sets of water spray pipes of the high-pressure water jet assembly are respectively installed on the bottom sides of the mud storage bin. The two sets of water spray pipes are respectively provided with nozzles at intervals. The two sets of water spray pipes are respectively connected to the clean water tank through the high-pressure water pump. The mud and debris screening chain machine includes a frame, a front sprocket assembly, a rear sprocket assembly, a drive assembly, and an annular chain. There are at least two annular chains, and support ribs are provided at intervals between two adjacent annular chains. Each support rib is provided with through holes at intervals, and a steel wire rope is provided through the through holes on the support rib. The two ends of the steel wire rope are fixed together by steel wire rope clips. The nozzles on the two sets of water spray pipes use high-pressure water to cut the sludge blocks to be separated from both sides, thereby cutting and breaking the sludge more quickly and achieving complete removal of impurities.

[0007] Furthermore, the distance between two adjacent support ribs corresponds to the distance between two adjacent nozzles, and the height difference between the nozzles on the two sets of water spray pipes and the support ribs on the mud and debris screening chain machine is no more than 10 mm.

[0008] Furthermore, each of the water spray pipes is provided with a bearing assembly at both ends, the bearing assembly including a bearing and a bearing housing, and a shaft end connector is provided at one end of the water spray pipe, the shaft end connector being able to rotate together with the water spray pipe.

[0009] Furthermore, a lifting device is provided on one end face of the mud storage silo. The lifting device is connected to the shaft end connecting seat. The lifting device drives the shaft end connecting seat to move, thereby causing the water spray pipe to rotate.

[0010] Furthermore, each of the aforementioned water spray pipes is provided with a central lifting ring assembly in the middle, the central lifting ring assembly including a support and a central lifting ring, the central lifting ring being fitted onto the water spray pipe with a clearance fit, and the end of the central lifting ring being connected to the support by bolts.

[0011] Furthermore, a perforated positioning plate is welded to each end of each of the supporting ribs, and the holes on the two positioning plates correspond to the holes on the annular chains on both sides, and the two are firmly fixed with bolts.

[0012] Furthermore: a strip-shaped support plate is provided in the middle of the frame of the mud and debris screening chain machine, and T-shaped support platforms are provided on both sides of the frame. The upper end of the support plate contacts the lower surface of the support rib to support the support rib, and the upper end of the support platform contacts the lower end face of the annular chain to support the annular chain.

[0013] A method for crushing high-viscosity solid waste and removing impurities using high-pressure water, utilizing any of the aforementioned high-pressure water crushing and impurity removal equipment, includes the following steps: S1. Preparation of high-pressure water: Inject clean water into the water tank through an external water source, power on the two high-pressure water pumps to start them working, and inject the pressurized high-pressure water into the two sets of spray pipes on the high-pressure water jet assembly, and spray them out from the nozzles connected to them respectively. S2. Preparation of mud and debris screening chain machine: Power on the drive component in the mud and debris screening chain machine to make it rotate intermittently. Each rotation will drive the support ribs installed on the ring chain to move forward a distance. This distance is exactly equal to the center distance between two adjacent support ribs, and also equal to the distance between two adjacent nozzles on the same side. S3. Placement of mud blocks to be separated: The whole mud block to be separated is fed into the mud storage bin from above. It is blocked by multiple support ribs of the mud and impurity screening chain machine and stops above the support ribs. Each support rib is a support point for the mud block to be separated. S4. High-pressure water cutting: High-pressure water sprayed from the nozzles cuts the mud blocks to be separated from both sides of the mud storage bin, quickly impacting and crushing the mud blocks to be separated from the support ribs into a mud-water mixture. The mud-water mixture falls from the gap between two adjacent support ribs under the action of gravity and enters the next process. S5. Removal of impurities: Impurities larger than the gap between two adjacent support ribs in the mud block to be separated cannot continue to fall and stop on the support ribs. The impurities are washed by the high-pressure water sprayed from opposite sides and gradually exposed from the mud block to be separated. They are then carried forward a distance of varying length by the multiple support ribs that are in contact with them below. Driven by the forward movement of the multiple support ribs, large impurities will gradually be carried out from the mud storage bin and finally discharged from the front end of the mud and impurity screening chain machine for further processing. S6. Continuously add the mud blocks to be separated into the mud storage bin to achieve continuous operation. When the operation is finished, simply turn off the corresponding control switch.

[0014] Furthermore: In step S2, the interval between the two rotations is set arbitrarily, and this time is usually determined on-site according to the amount of impurities in the sludge to be cut.

[0015] Further: In step S4, high-pressure water sprayed from two opposing sets of nozzles penetrates the mud block to be separated in the width direction, forming mud strips with the same width as the mud storage bin. These mud strips fall from the gaps between two adjacent support ribs, and are then cut into smaller mud strips by the steel wire rope in the middle, and finally fall below the mud screening chain machine to wait for further processing.

[0016] The beneficial effects of this invention are: 1. This invention utilizes high-pressure water to break high-viscosity solid waste into small pieces and remove impurities, which is beneficial for further processing of high-viscosity solid waste, improves the reuse of solid waste, and has good environmental protection effects.

[0017] 2. This invention has good crushing performance for high-viscosity solid waste. It applies the principle of water jet cutting, using a high-pressure water jet from a nozzle to cut large pieces of high-viscosity solid waste. The pressure of the high-pressure water reaches 7.0 to 10 MPa, which can effectively cut high-viscosity solid waste in any state and break it into small pieces.

[0018] 3. This invention has a good effect on removing impurities from high-viscosity solid waste. During the process of high-pressure water cutting of high-viscosity solid waste, if there are impurities in the high-viscosity solid waste, and if the high-pressure water cannot cut it into small pieces, the high-pressure water will clean and peel off the high-viscosity solid waste around it, exposing it from the high-viscosity solid waste. Then, it will be carried out from the high-viscosity solid waste by the conveying device and collected into one place for unified processing.

[0019] 4. The present invention can drive the water spray pipe to rotate through the lifting device, thereby changing the spray direction of the nozzle, which can better promote the breaking of mud and the cleaning of debris.

[0020] 5. This invention has a reasonable design, good crushing effect and can collect impurities. It has a high degree of automation, is easy to promote and implement, and has good economic benefits. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a schematic diagram illustrating the usage state of the present invention; Figure 5 for Figure 1 Schematic diagram of the structure of the medium mud block storage and decomposition chamber; Figure 6 for Figure 5 Schematic diagram of the C-axis structure; Figure 7 for Figure 5 A top view of the mud storage and decomposition chamber shown. Figure 8 for Figure 5 Schematic diagram of the medium and high pressure water jet assembly; Figure 9 for Figure 1 A top view of the chain screening machine for medium mud and impurities; Figure 10 for Figure 9 Schematic diagram of the AA section structure; Figure 11 for Figure 9 Schematic diagram of the cross-sectional structure of the middle BB; Figure 12 for Figure 10 Enlarged view of section I in the middle. Detailed Implementation

[0022] Example: See Figure 1 -- Figure 12 In the diagram, 1-mud block storage and decomposition chamber, 2-mud and impurity screening chain machine, 3-high pressure water pump, 4-clean water tank, 5-mud block to be decomposed and decomposed, 6-impurities, 7-mud blocks with decomposed impurities removed, 11-mud storage bin, 12-high pressure water jet assembly, 13-lifting device, 121-bearing assembly, 122-water spray pipe, 123-nozzle, 124-middle lifting ring assembly, 125-shaft end connecting seat, 20-support plate, 21-chain tensioning device, 22-rear sprocket assembly, 23-support rib, 24-wire rope, 25-frame, 26-ring chain, 27-front sprocket assembly, 28-drive assembly, 29-wire rope clamp, 30-support platform, 31-positioning plate.

[0023] The composition and function of a high-pressure water crushing device for high-viscosity solid waste and impurity removal are as follows: The mud block storage and decomposition chamber 1 is fixed directly above the mud and impurity screening chain machine 2. The mud block storage and decomposition chamber 1 is mainly used to store the mud blocks 5 to be decomposed and impurity removed. High-pressure water is used to decompose them into smaller mud blocks, and the impurities contained within are removed. The mud and impurity screening chain machine 2 ensures that only mud blocks smaller than a certain size after being crushed by high-pressure water are separated, and transports the impurities removed by the high-pressure water to a centralized processing area. The inlets of two high-pressure water pumps 3 are connected to a clean water tank 4, and their outlets are connected to two sets of spray pipes 122 on the high-pressure water jet assembly 12 in the mud block storage and decomposition chamber 1, providing high-pressure water with a pressure of up to 7.0–10 MPa. This high-pressure water is used for crushing and removing impurities from the mud blocks 5 to be decomposed.

[0024] The mud block storage and decomposition chamber 1 includes a mud storage chamber 11, a high-pressure water jet assembly 12, and a lifting device 13. The mud storage chamber 11 is a rectangular cavity with openings at the top and bottom, and the middle cavity is used to accommodate the mud blocks 5 to be decomposed. The high-pressure water jet assembly 12 is installed on both sides of the bottom of the mud storage chamber 11 and is located directly above the mud and debris screening chain machine 2, ensuring that the height difference between the nozzles 123 in its two sets of water spray pipes 122 and the support ribs 23 in the mud and debris screening chain machine 2 is no more than 10 mm.

[0025] A lifting device 13 is provided on one end face of the sludge storage bin 11. The lifting device 13 is connected to the shaft end connecting seat 125. The lifting device 13 drives the shaft end connecting seat 125 to move, thereby causing the water spray pipe 122 to rotate. This achieves high-pressure water cutting of the sludge and washing away the sludge around the impurities that cannot be cut, thus removing the impurities from the sludge.

[0026] The high-pressure water jet assembly 12 comprises two sets of water spray components. Each set of water spray components has a water spray pipe 122. Multiple nozzles 123 are installed on each water spray pipe 122 as needed. Each water spray pipe 122 has a seated bearing 121 installed at both ends and a central lifting ring 124 installed in the middle to enhance the rigidity of the water spray pipe 122 and prevent it from sinking. Each seated bearing 121 and central lifting ring 124 is fixed to a support 126. This structure allows for the relative cutting of sludge blocks from both sides using high-pressure water, thereby more quickly cutting and breaking down the sludge, and also achieving complete removal of impurities.

[0027] The mud and debris screening chain machine 2 includes a frame 25, on which a rear sprocket set 22 and a front sprocket set 27 are mounted. Two or more annular chains 26 are installed between the rear sprocket set 22 and the front sprocket set 27, and a chain tensioning device 21 is installed on the rear sprocket set 22 to tension the two or more annular chains 26. A drive assembly 28 is also installed on the frame 25, which can drive the front sprocket set 27 to rotate, thereby driving the chains 26 and the rear sprocket set 22 to rotate. A support rib 23 is bolted to each corresponding link between the two or more annular chains 26. All support ribs 23 are parallel after installation, and the distance between them is exactly equal to the distance between two adjacent nozzles. The gap between two adjacent support ribs 23 is the maximum size of the sludge block after it is shredded by high-pressure water. This size not only determines the size of the shredded sludge block, but also the size of the impurities that cannot be shredded and leak through. Impurities larger than this gap cannot leak through the gap and can only be carried away by the mud and impurity screening chain machine 2.

[0028] A perforated positioning plate 31 is welded to both ends of each support rib 23. The holes on the two positioning plates 31 correspond to the holes on the annular chains 26 on both sides, and the two are firmly fixed with bolts. Each support rib 23 has small holes (through holes), which are used to install multiple steel wire ropes 24.

[0029] Each wire rope 24 passes through the corresponding small hole on each support rib 23, and wraps around the rear sprocket assembly 22 and the front sprocket assembly 27. Finally, it is securely fixed at the joint with a wire rope clip 29, and each fixed wire rope 24 is in a parallel state. The purpose of adding wire ropes 24 is to cut the sludge into smaller pieces as much as possible, making it easier to process in the next process.

[0030] The frame 25 of the mud and debris screening chain machine 2 has a strip-shaped support plate 20 in the middle, and T-shaped support platforms 30 are respectively set on both sides of the frame 25. The upper end of the support plate 20 contacts the lower surface of the support rib 23 and supports the support rib 23. The upper end of the support platform 30 contacts the lower end face of the ring chain 26 and supports the ring chain 26.

[0031] A method for crushing high-viscosity solid waste and removing impurities using high-pressure water includes the following steps: During preparation: Power on the two high-pressure water pumps 3 to start them working. Clean water flows from the clean water tank 4 into the inlet of the high-pressure water pump 3, where it is pressurized to 7.0-10 MPa. The pressurized high-pressure water is then injected from its outlet into the two sets of spray pipes 122 on the high-pressure water jet assembly 12, and sprayed out from their respective connected nozzles 123. Each nozzle 123 is positioned approximately 10 mm directly above the support rib 23.

[0032] During preparation: Power on the drive assembly 28 of the mud and impurity screening chain machine 2 to make it rotate intermittently and rapidly. Each rotation drives the support ribs 23 installed on the chain 26 forward a specific distance, which is exactly equal to the center distance between two adjacent support ribs 23, and exactly equal to the distance between two adjacent nozzles on the same side. The interval between two rotations can be set arbitrarily, and is usually determined on-site according to the amount of impurities in the sludge to be cut.

[0033] This interval can sometimes be set to zero, allowing the movement of the support rib 23 to become a normal rotational state. The drive assembly 28 can even adjust the movement speed of the support rib 23 through a frequency converter or other means.

[0034] During operation: The whole block of mud to be separated 5 is fed from above by a loader or excavator into the mud storage bin 11 of the mud block storage and decomposition bin 1 and falls down. It is blocked by multiple support ribs 23 in the mud screening chain machine 2 and stops above the support ribs 23. At this time, each support rib 23 is subjected to pressure from the mud block 5 to be separated from above. The resultant force on these support ribs 23 is equal to the weight of the mud block 5 to be separated (ignoring the friction or adhesion force of the mud block 5 on the side wall of the mud storage bin 11). That is to say, the reason why the mud block 5 to be separated does not fall is due to the support of these support ribs 23. Each support rib is a support point for the mud block 19 to be separated.

[0035] During operation: High-pressure water sprayed from nozzles 123, located approximately 10 mm directly above the support ribs 23, cuts through the mud blocks 5 to be separated from both sides of the mud storage bin 11, rapidly impacting and breaking them into a mud-water mixture. This mixture then falls through the gap between two adjacent support ribs 23 under the influence of gravity. At this point, the supporting force of the mud blocks 5 on the support ribs 23 is weakened. When the high-pressure water sprayed from the two opposing nozzles 123 penetrates the mud blocks 5 in the width direction, the supporting force completely disappears. In other words, under the rapid impact of the high-pressure water, the mud blocks 5 have no support and continue to fall under the influence of gravity. Microscopically, the sludge blocks 5 to be separated are cut into strips of sludge, the same width as the sludge storage bin 11, by high-pressure water sprayed from multiple nozzles 123. These strips fall through the gaps between two adjacent support ribs 23, and are then cut into smaller strips by the central steel wire rope 24. Finally, they fall below the mud and impurity screening chain machine 2 to await further processing (either transported away by a belt conveyor or transported away by a loader or excavator). If the sludge blocks 5 contain no impurities or the impurities are smaller than the gaps between two adjacent support ribs 23, the sludge blocks 5 will quickly fall completely from the sludge storage bin 11 under gravity. Loaders or excavators can continuously deliver whole sludge blocks 5 to the sludge storage bin 11. Experiments show that the more sludge blocks 5 to be separated and the higher the bin 11 is, the faster the sludge blocks 5 are cut and broken under gravity, resulting in a larger output of sludge. At this point, the mud and impurity screening chain machine 2 may not even need to rotate.

[0036] During operation: Under most working conditions, the mud blocks 5 to be separated contain impurities of varying sizes, requiring the mud and impurity screening chain machine 2 to operate continuously. At set intervals, the support ribs 23 move forward a specific distance driven by the chain 26. This distance is exactly equal to the center distance between two adjacent support ribs 23. This interval can sometimes be set to zero, allowing the movement of the support ribs 23 to become a normal rotational state. The drive assembly 28 can even adjust the movement speed of the support ribs 23 through frequency converters, stepper motors, or servo motors. That is to say, as long as the support ribs 23 are stationary, there must be a nozzle 123 within 10 mm directly above them. The high-pressure water sprayed continuously consumes the mud blocks 5 to be separated above them, leaving the mud blocks 5 without support points and unable to form a supporting force. After being cut by the high-pressure water, they fall through the gap between two adjacent support ribs 23 under the action of gravity and are then cut into smaller mud strips by the wire rope 24. Impurities larger than the gap between two adjacent support ribs 23 in the mud block 5 to be separated are supported by two or more adjacent support ribs 23 and cannot continue to fall, so they stop on the support ribs 23. At this time, they will be washed by the high-pressure water sprayed out, and gradually exposed from the mud block 5 to be separated. Then, they will be carried forward a distance of varying length by the multiple support ribs 23 below. Driven by the forward movement of the multiple support ribs 23, the large impurity will be gradually carried out from the mud storage bin 11 and discharged from the front end of the mud and impurity screening chain machine 2 for further processing.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications made based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A device for high-pressure water crushing of high-viscosity solid waste and removal of impurities, comprising a mud storage and decomposition bin, a mud and impurity screening chain machine, a high-pressure water pump, and a clean water tank, characterized in that: The mud block storage and decomposition chamber is fixed directly above the mud and impurity screening chain machine. The mud block storage and decomposition chamber includes a mud storage bin and a set of high-pressure water jet assembly. The mud storage bin is a rectangular cavity with openings at the top and bottom to accommodate mud blocks to be decomposed. Two sets of water spray pipes of the high-pressure water jet assembly are respectively installed on the bottom sides of the mud storage bin. The two sets of water spray pipes are respectively provided with nozzles at intervals. The two sets of water spray pipes are respectively connected to the clean water tank through the high-pressure water pump. The mud and debris screening chain machine includes a frame, a front sprocket assembly, a rear sprocket assembly, a drive assembly, and an annular chain. There are at least two annular chains, and support ribs are provided at intervals between two adjacent annular chains. Each support rib is provided with through holes at intervals, and a steel wire rope is provided through the through holes on the support rib. The two ends of the steel wire rope are fixed together by steel wire rope clips. The nozzles on the two sets of water spray pipes use high-pressure water to cut the sludge blocks to be separated from both sides, thereby cutting and breaking the sludge more quickly and achieving complete removal of impurities.

2. The device for high-pressure water crushing of high-viscosity solid waste and removal of impurities according to claim 1, characterized in that: The distance between two adjacent support ribs corresponds to the distance between two adjacent nozzles, and the height difference between the nozzles on the two sets of water spray pipes and the support ribs on the mud and debris screening chain machine is no more than 10 mm.

3. The device for high-pressure water crushing and impurity removal of high-viscosity solid waste according to claim 1, characterized in that: Each of the water spray pipes is provided with a bearing assembly at both ends. The bearing assembly includes a bearing and a bearing housing. One end of the water spray pipe is provided with a shaft end connector, which can rotate together with the water spray pipe.

4. The device for high-pressure water crushing of high-viscosity solid waste and removal of impurities according to claim 3, characterized in that: A lifting device is provided on one end face of the mud storage silo. The lifting device is connected to the shaft end connecting seat. The lifting device drives the shaft end connecting seat to move, thereby causing the water spray pipe to rotate.

5. The device for high-pressure water crushing and removing impurities from high-viscosity solid waste according to claim 3, characterized in that: Each of the aforementioned water spray pipes is provided with a central lifting ring assembly in the middle. The central lifting ring assembly includes a support and a central lifting ring. The central lifting ring is fitted onto the water spray pipe with a clearance fit, and the end of the central lifting ring is connected to the support by bolts.

6. The device for high-pressure water crushing and removing impurities from high-viscosity solid waste according to claim 1, characterized in that: Each of the supporting ribs has a perforated positioning plate welded to both ends. The holes on the two positioning plates correspond to the holes on the annular chains on both sides, and the two are firmly fixed with bolts.

7. The device for high-pressure water crushing of high-viscosity solid waste and removal of impurities according to claim 1, characterized in that: The frame of the mud and debris screening chain machine has a strip-shaped support plate in the middle, and T-shaped support platforms are respectively provided on both sides of the frame. The upper end of the support plate contacts the lower surface of the support rib to support the support rib, and the upper end of the support platform contacts the lower end face of the annular chain to support the annular chain.

8. A method for crushing high-viscosity solid waste and removing impurities using high-pressure water, comprising the following steps: (The method utilizes the equipment described in any one of claims 1-5 for crushing high-viscosity solid waste and removing impurities.) S1. Preparation of high-pressure water: Inject clean water into the water tank through an external water source, power on the two high-pressure water pumps to start them working, and inject the pressurized high-pressure water into the two sets of spray pipes on the high-pressure water jet assembly, and spray them out from the nozzles connected to them respectively. S2. Preparation of mud and debris screening chain machine: Power on the drive component in the mud and debris screening chain machine to make it rotate intermittently. Each rotation will drive the support ribs installed on the ring chain to move forward a distance. This distance is exactly equal to the center distance between two adjacent support ribs, and also equal to the distance between two adjacent nozzles on the same side. S3. Placement of mud blocks to be separated: The whole mud block to be separated is fed into the mud storage bin from above. It is blocked by multiple support ribs of the mud and impurity screening chain machine and stops above the support ribs. Each support rib is a support point for the mud block to be separated. S4. High-pressure water cutting: High-pressure water sprayed from the nozzles cuts the mud blocks to be separated from both sides of the mud storage bin, quickly impacting and crushing the mud blocks to be separated from the support ribs into a mud-water mixture. The mud-water mixture falls from the gap between two adjacent support ribs under the action of gravity and enters the next process. S5. Removal of impurities: Impurities larger than the gap between two adjacent support ribs in the mud block to be separated cannot continue to fall and stop on the support ribs. The impurities are washed by the high-pressure water sprayed from opposite sides and gradually exposed from the mud block to be separated. They are then carried forward a distance of varying length by the multiple support ribs that are in contact with them below. Driven by the forward movement of the multiple support ribs, large impurities will gradually be carried out from the mud storage bin and finally discharged from the front end of the mud and impurity screening chain machine for further processing. S6. Continuously add the mud blocks to be separated into the mud storage bin to achieve continuous operation. When the operation is finished, simply turn off the corresponding control switch.

9. The method for high-pressure water crushing of high-viscosity solid waste and removal of impurities according to claim 8, characterized in that: in In step S2, the interval between the two rotations is set arbitrarily, and this time is usually determined on-site based on the amount of impurities in the sludge to be cut.

10. The method for high-pressure water crushing of high-viscosity solid waste and removal of impurities according to claim 8, characterized in that: in In step S4, high-pressure water sprayed from two opposing sets of nozzles penetrates the mud blocks to be separated in the width direction, forming mud strips with the same width as the mud storage bin. These mud strips fall from the gaps between two adjacent support ribs, are then cut into smaller mud strips by the steel wire rope in the middle, and finally fall below the mud and impurity screening chain machine to wait for further processing.

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