11 results about "Slurry transport" patented technology

The utility model relates to the technical field of flue gas treatment, in particular to an adjustable rotational flow desulfurization tower, which comprises a tower body, a gas inlet, a gas outlet, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, the rotational flow generating layer is arranged above the air inlet; the spraying layer is arranged above the rotational flow generating layer; the demisting layer is arranged below the air outlet; and the slurry layer is arranged at the bottom of the tower body and conveys slurry to the spraying layer through a circulating pipeline. According to the adjustable rotational flow desulfurizing tower provided by the utility model, the flue gas can form rotational flow through the multi-stage rotational flow blade group, and the formed rotational flow is longitudinally reinforced through the arc-shaped plate, so that the rotational flow can overcome the internal resistance of the desulfurizing tower and quickly run to the spraying layer to react with slurry, and the desulfurizing efficiency and the desulfurizing effect are effectively improved.

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 slurry conveying assembly and a coal yard fire preventing and extinguishing device, the slurry conveying assembly comprises a slurry conveying pipe, one end of the slurry conveying pipe is suitable for being connected with a slurry spraying outlet of a slurry spraying pump, and the other end of the slurry conveying pipe is suitable for being connected with a spraying gun or a grouting pipe; a high-pressure gas inlet is formed in the pipe wall of one end of the slurry conveying pipe; the high-pressure gas control valve is arranged at the high-pressure gas inlet and used for controlling opening and closing of the high-pressure gas inlet, and the high-pressure gas inlet is suitable for being communicated with a high-pressure gas source through the high-pressure gas control valve. According to the slurry conveying assembly disclosed by the embodiment of the utility model, the slurry conveying pipe can be purged by utilizing high-pressure gas after flushing is finished, so that residual water in the slurry conveying pipe can be discharged in time, and further blockage caused by freezing in the slurry conveying pipe is avoided.

The invention discloses a dredger simulation method and system based on an instantaneous excavation yield and a transient flow theory, and belongs to the technical field of dredging, the dredger simulation method comprises an excavation simulation model which is constructed based on three-dimensional real terrain parameters and excavation parameters and simulates a dredged soil excavation process by using the real-time excavation parameters; the excavation parameters comprise the cutter suction dredger reamer outline, the transverse moving speed, the buried depth, the forward moving distance, the original terrain and the earthwork collapse after the excavation reamer is moved; the coupling module is used for comparing the real-time excavating and dredging earthwork volume output by the excavating simulation model with the maximum conveying and dredging earthwork volume of the conveying equipment, and selecting a smaller value between the two as a coupling parameter of the conveying simulation model; the conveying simulation model is constructed on the basis of conveying equipment parameters, and the coupling parameters output by the coupling module are used as input to simulate the slurry conveying process; the conveying equipment comprises a dredge pump, a suction pipeline connected to the inlet end of the dredge pump and a sludge discharge pipeline connected to the outlet end of the dredge pump.

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.

The utility model discloses a drilling fluid slurry unloading and transferring device, and relates to the technical field of drilling fluid slurry. The drilling fluid slurry unloading and transferring device comprises a rack, a slurry inlet and slag pump, a slurry screening machine, a circulation slurry storage box and a slurry outlet and slag pump are arranged on the rack, an outlet of the slurry inlet and slag pump is communicated with a slurry inlet of the slurry screening machine, and a solid phase outlet of the slurry screening machine is formed in one side of the rack. A slurry outlet of the slurry screening machine is communicated with an inner cavity of a circulation slurry storage box arranged below the slurry screening machine, and the inner cavity of the circulation slurry storage box is further communicated with an inlet of a slurry discharging and slag slurry pump. The device can replace an existing passive unloading mode that a tank body inclines and depends on self-weight flow guiding of the slurry, the unloading efficiency of the slurry transport vehicle is remarkably improved, meanwhile, the unloaded drilling fluid slurry can be screened, solid-phase particles exceeding the standard are screened out, the performance of the drilling fluid slurry is improved, and the service life of the drilling fluid transport vehicle is prolonged. The influence on subsequent drilling operation caused by performance degradation of the drilling fluid slurry is avoided.

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.

The application provides a dewatering-curing-conveying integrated device applied to environment-friendly dredging slurry, and the whole pipeline is connected between a slurry lifting pump pipe section and a subsequent pipe section in a slurry temporary storage pool to convey the slurry and form a treatment state at the same time, so that the slurry is cured and discharged, and the whole pipeline comprises a dewatering section pipeline and a curing section pipeline; a first mixing pipeline is arranged in the dewatering section pipeline, the first mixing pipeline is communicated with the slurry lifting pump pipe section, a flocculation pipeline and a dewatering pipeline are sequentially connected downstream of the first mixing pipeline, a second mixing pipeline connected with the dewatering pipeline is arranged in the curing section pipeline; and mixing sections are arranged in the first mixing pipeline and the second mixing pipeline. In the slurry conveying process with high water content, slurry dewatering and slurry curing are respectively carried out, dewatering-curing-conveying integration is realized, the amount of slurry transported by the pipeline is reduced, the slurry treatment site is reduced, and the investment cost is saved.