7 results about "Slurry transport" patented technology

This invention discloses a method for stabilizing waste slurry from tunnel boring machines (TBMs), belonging to the field of construction waste disposal. The method adjusts the pH of the pre-dehydrated flocculated slurry to 7.5-8.5, and simultaneously adds konjac glucomannan, trisodium citrate, and low-grade diatomaceous earth under stirring. These three components react simultaneously in a one-pot process under alkaline conditions to form a rigid-flexible interpenetrating network structure, resulting in a stabilized slurry that does not leak free water under transport vibration conditions. This invention utilizes the synergistic effect of the cross-linking regulation of konjac glucomannan and trisodium citrate, and the rigid support of low-grade diatomaceous earth, effectively solving the problem of water seepage and leakage caused by vibration during slurry transportation. This invention features a simple process, rapid reaction, and uses all naturally sourced materials with good environmental compatibility. The treated slurry can be directly utilized as a resource, meeting the requirements of green construction.

The utility model discloses a system for automatically adjusting slurry concentration, which comprises a stirring barrel, an on-line concentration detection device mounted on the inner bottom surface of the stirring barrel, an overflow port arranged at the top end of the side wall of the stirring barrel, a filter plate fixedly connected in the overflow port, a filtrate storage box arranged on the outer side of the overflow port, and a filtrate pipeline communicated with the output end of the filtrate storage box, a water outlet of the filtrate pipeline is communicated with an inlet of the water tank, an outlet of the water tank is communicated with an inlet of the make-up pump, and a water make-up pipeline is communicated between an outlet of the make-up pump and an inlet of the input end of the filtrate storage box. The online concentration monitoring device has the advantages that when the slurry concentration deviates from a set value in the slurry conveying process, online concentration monitoring is achieved by arranging the online concentration detection device in the stirring barrel, water drainage or water supplement is achieved through the filtrate storage box on the side portion, real-time adjustment of the water-solid ratio in the stirring barrel is achieved, and the stirring efficiency is improved. The hysteresis of adjusting the water-solid ratio at the source is eliminated, the instability of the slurry concentration is effectively reduced, and the slurry preparation cost is reduced.

This utility model discloses a slurry transport pipeline, including a conveying pipe with a blockage-clearing mechanism installed on it. The blockage-clearing mechanism includes a main pipe, a filter screen, a drain pipe, and a collection tank. A branch pipe is connected to the main pipe, and an end cap is installed at the end of the branch pipe. A vibration mechanism is installed on the end cap. The filter screen is installed inside the branch pipe, with one end of the filter screen located inside the main pipe. The drain pipe is installed on the end cap and connected to the branch pipe, with a drain valve installed on the drain pipe. The collection tank is located below the branch pipe, with one end of the drain pipe located inside the collection tank. The end cap is connected to the branch pipe by several bolts, facilitating the removal of the end cap for filter screen replacement. The vibration mechanism includes a rotating shaft rotatably connected to the end cap. This utility model adds a blockage-clearing mechanism to filter out large particles in the slurry that have not been crushed, thereby reducing the probability of slurry pipeline blockage, ensuring stable slurry transport, and minimizing the impact on nonwoven fabric production.

This invention provides a pressurized sealing device and method for slurry transport pipelines. The sealing device includes a repair pipe, two sets of drive systems disposed at both ends of the repair pipe, and two sets of pipe-clamping and fixing mechanisms. The repair pipe is fitted over the leak area of ​​the damaged pipe, and at least two sets of sealing strips are provided between the repair pipe and the damaged pipe. The leak area of ​​the damaged pipe to be sealed is located between at least two sets of sealing strips. The drive system includes multiple sets of second hydraulic cylinders, each set of second hydraulic cylinders having one end hinged to a pipe-clamping frame and the other end hinged to a corresponding force-bearing seat on the repair pipe. The two sets of pipe-clamping and fixing mechanisms provide positioning gripping points on both sides of the leak point in the slurry transport pipeline, providing force points for the second hydraulic cylinders. The repair pipe covers the damaged slurry transport pipeline, and the sealing operation of the pipeline transport system is completed under the drive of the second hydraulic cylinders. This invention can complete pressurized sealing operations of slurry transport pipelines, preventing pipeline blockage and ensuring the safety of the slurry transport system.

The application discloses a kind of anti-silt injection devices for slurry transport sand bucket and its use method, belong to injection device technical field.A kind of anti-silt injection devices for slurry transport sand bucket, including the annular seat being fixedly connected by first support and sand bucket body, further include: elastic expansion seat, elastic expansion seat is set with multiple and is evenly set on annular seat, the end of each elastic expansion seat away from annular seat is fixed with injection assembly, for impacting the slurry accumulated on sand bucket body;The application is driven by walking component, and injection assembly is automatically patrolled along the circumference of sand bucket, realizes the all-around, dead angle-free flushing to sand bucket inner wall, effectively prevents the slurry siltation and consolidation, and the dynamic swing impact of spray head can actively intervene mixed vortex in sand bucket, break slurry lump, eliminate mixed dead angle, significantly improve sand water mixing uniformity, fundamentally reduce the risk of pipeline blockage, substantially improve operation efficiency and continuity.

The application discloses a mud circulating system for a positive circulation mud wall protection hole forming cast-in-place pile, which comprises an assembled mud pool and an assembled sedimentation tank, further comprises a casing which is pre-buried at a drilling hole mouth, the casing is provided with a casing interface; further comprises a drilling device for drilling and a mud pump for pumping mud, the mud pump is used for pumping the mud in the assembled mud pool into the drilling hole; a plurality of sedimentation mud barrels are arranged in each of the sedimentation tank bodies, the sedimentation mud barrels can be driven to transport the mud in the sedimentation tank body to a preset position, the mud circulating system can be improved in terms of the long distance disadvantage caused by the large range movement of a pile position, and the pollution caused by the original soil excavation mud pool and the guide ditch to the environment can be eliminated.