416results about How to "Improve drainage effect" patented technology

The invention relates to a slope self-drainage anchor rod and a construction method. The self-drainage anchor rod comprises a hollow anchor pipe, an anchorage device, a cushion plate and a siphon, wherein one end of the hollow anchor pipe is open, the other end of the hollow anchor pipe is closed, the hollow anchor pipe is wrapped in a filter screen, threads are arranged at the open end of the hollow anchor pipe, water-pervious holes are formed in the rear middle of the hollow anchor pipe, the rear segment of the hollow anchor pipe and a slurry outlet pipe are perpendicularly connected, the end of the slurry outlet pipe is sleeved with a sleeve valve and a geotextile bag, and on the two sides of the slurry outlet pipe, the geotextile bag is clamped and fixed to the hollow anchor pipe through hoops; the lower side of the hollow anchor pipe is obliquely placed in a slope, the relative height difference between the pipe opening of the hollow anchor pipe and the pipe bottom of the hollow anchor pipe is kept smaller than 7 m, pulp solidifies in the geotextile bag and is anchored in stable soil, and the front segment of the hollow anchor pipe is anchored to the cushion plate through the anchorage device; a water suction pipe of the siphon is inserted in the hollow anchor pipe and stretches to the bottom, the water suction pipe is connected with a drainage pipe and a balance water outlet device through connector bent pipes on the slope, and a water inlet of the water suction pipe is as high as a water outlet of the balance water outlet device. The slope self-drainage anchor rod is simple in structure, can achieve anchoring and draining at the same time and is good in drainage effect, easy and convenient to construct and low in manufacturing cost.

The invention discloses a construction method of a high-tension water-rich extra-large-section weak breccia tunnel. The method includes the steps of exploring distribution of fault weak breccia in front of a tunnel face by an advanced geological forecast method; distributing L-shaped gradient drain holes in two inner sides of the tunnel, providing sector drain holes and grouting holes, and allowing upper grouting and lower drainage; providing a combined cylinder grout-stopping wall, and performing a full-face advanced chemical grouting consolidation; constructing an advanced long tube shed with a circumferential closed advanced tube shed guide wall having a foundation, distributing tapered quincunx examining drain holes to detect grouting effect, and finally excavating the tunnel. Through the use of the techniques such as three-layer stereoscopic grouting and drainage, and cement-water glass and epoxy resin sequential grouting, the problem that a high-tension water-rich surrounding rock area with loose weak breccia has ineffective grouting consolidation and non-obvious water plugging effect is solved.

The invention discloses a concentrated drainage device and method of tunnel engineering, which comprises the following parts: water diversion pipe, filter layer on the outside of water diversion pipe, funnel under the initial support water diversion pipe, screen under the funnel and drainage pipe under the screen, wherein the water diversion pipe is set in the water diversion hole d of tunnel adjacent bed creepage centralization part. The method comprises the following steps: drilling the water diversion hole d in the tunnel initial support and tunnel adjacent bed creepage centralization part; leveling the initial support surface; setting the concentrated drainage device in the tunnel engineering.

The invention relates to a fracturing technology for implementing the ultrahigh flow conductivity, which comprises the following steps: 1, judging whether geomechanics parameters of a target reservoir is suitable for the fracturing technology disclosed by the invention or not; 2, judging whether completion perforation of a target well is suitable for the fracturing technology disclosed by the invention or not, and if no, changing a perforating scheme of a well bottom; 3, before fracturing, selecting related fracturing materials; 4, carrying out fracturing on the target well by using a unique pumping program of the fracturing technology disclosed by the invention. According to the fracturing technology, proppant struts are formed in a stratum; flow conductivity of a stratum fracture is not improved by a filling layer of a proppant, but oil gas passes through by passages between the proppant struts; the flow conductivity is obviously improved by the open flowing passages; the flow conductivity of an existing conventional fracturing technology is not more than 200mum<2>*cm generally, but the flow conductivity of the fracturing technology for implementing the ultrahigh flow conductivity, which is disclosed by the invention, is higher than that of the conventional fracturing technology by 1 to 3 orders of magnitude; the fracturing technology reduces a pressure drop in the fracture, is helpful for improving drainage capacity and increases the effective fracture half-length and the production increase volume of the reservoir so as to improve yield.

The slip resistant shoe sole 1 of the invention comprises a plurality of ground contact projections 3 formed on the ground contact side of the sole base 2 with a predetermined gap between adjacent ground contact projections 3 in the longitudinal direction of the base 2, the ground contact projections 3 having a V-shaped horizontal cross section, having inclined reinforcements 5 provided at the roots of the ground contact projections 3 on the base 2, and being formed using an elastomeric polymer with a JIS-A hardness of 45 to 80 as measured at 20 DEG C.

The invention discloses a side slope self-drainage electroosmosis anchor rod and a construction method thereof, and belongs to the technical field of rock-soil anchoring. The self-drainage electroosmosis anchor rod comprises two electric geotechnical bags, anchors, base plates and a siphon. Hollow tubes are sleeved with the electric geotechnical bags to extend to the bottoms, sleeve valves are fastened to reserved holes in the electric geotechnical bags, and the electric geotechnical bags are strapped to the hollow tubes externally through plastic clamps on the left sides and the right sides of bags. Slurry is solidified and anchored in a stable side slope, and the front sections of the electric geotechnical bags are anchored on the base plates by the anchors. A moisture inductive control switch is buried in soil of the slope surface, a solar battery is disposed outside the slope, and a positive pole, the moisture inductive control switch, the solar battery and a negative pole are sequentially connected in series through wires. A water suction tube is inserted into the hollow tube of the negative pole and is connected with a balance water discharge device on the slope surface through a connection elbow and a water discharge tube. A water inlet of the water suction tube is the same as a water outlet of the balance water discharge device in elevation. The side slope self-drainage electroosmosis anchor is ingenious in structure, has functions of anchoring, water discharging and solidification acceleration and is high in automation degree, and the construction method is simple and convenient.

The present invention provides a planting box device composed of at least a modular frame, which further comprises a frame set, a connecting rod group, wherein the frame set includes a first frame and a second frame; the first frame has a bearing plate, four corners of which are positioned by first openings and first posts and which also forms a plurality of positioning openings; the second frame having a sink forms second openings and second posts on its four corners, wherein the second posts are accommodated with the first openings in size and the sink has an inlet and an outlet; the connecting rod group comprises a plurality of connecting rods, each of which has rod openings and rod posts, so that the composition of the planting box device described above has function of structural expansion in horizontal and vertical direction and thus provides convenience in assembly and disassembly.

The invention relates to a guide agent and relative preparation, used in CSP smelt factory, wherein it uses chromic sand, quartz sand, magnesium sand, feldspar sand, and graphite, to be screened, mixed and dried. Compared with present guide agent, it has better sinter degree, stable thickness, and better high-temperature resistance, etc. And the test proves that its steel pack self-open rate can reach 98-100%.

The invention relates to a textile multicomponent enhancement structure-gradually gradable ureteral stent tube and a preparation method thereof. The textile-based ureteral stent tube is characterized by comprising a film phase and a fiber phase containing different components, wherein the film phase and the fiber phase are mutually mixed, the mechanical property is enhanced, and the two phases are gradually degraded. The preparation method is characterized by comprising the following steps of: weaving at least two degradable fibrous raw materials with different melting temperatures on a core mold by a weaving structure mixed by different configuration, and melting the components with low melting point in the tube wall fiber materials into film by virtue of temperature in a thermal treatment technology, so that the other fiber components in the tube wall can be tightly and evenly combined to enhance the tube wall of the weaving tube. The ureteral stent tube is simple to prepare, has the excellent axial tensile property and flexibility of a fiber stent, and the excellent mechanical supporting performance of a film material stent tube, and can realize the gradual degraded steps of the film and the fiber successively; and a degradation product is less than 0.1mm<3>.

The invention discloses a multifunctional oral surgery drainage device which comprises a base. The base is provided with a storage battery and a control box, a drainage collection tank is arranged atthe upper end of the left side of the base, a cleaning liquid storage tank is arranged at the rear of the drainage collection tank, a supporting rod is arranged in the middle of the upper end of the base, a connecting seat is arranged at the top of the supporting rod, a drainage pipe support is arranged on the connecting seat, a drainage pipe is arranged on the front side of the drainage pipe support, a drainage suction nozzle is arranged at the front end of the drainage pipe, and a cleaning liquid pipe is arranged on the rear side of the drainage pipe support. The device has the advantages that the device is provided with a heating device and a temperature sensor, the temperature of cleaning liquid is accurately controlled, the comfort degree of patients is ensured in the cleaning and draining process, the pressure and the flow rate of the cleaning pipe and the drainage pipe can be adjusted, drainage effects are improved, drainage waste liquid is uniformly recycled, subsequent treatment is facilitated, and environmental pollution caused by the drainage waste liquid is reduced.

The application discloses a method and a device of providing trading area service information. The method includes: receiving an access request of accessing a trading area homepage; acquiring currentlocation information of a client issuing the access request; according to the current location information of the client, judging whether the client enters a predetermined trading area region range, and if yes, executing a next step; and providing the prompting information of related services in a trading area. Therefore, trading area service contents can be pertinently provided according to a current location of a user or the current location information of the client, that is, different trading area service contents are provided according to different location scenes of the client, then thesame are closer to consumption demand and service demand of the user, and customer flow attracting effects of entity merchants are improved. In addition, the application also provides a method and a device of displaying the trading area service information.

A U-shaped tubular condenser of a vertical type spiral baffle plate comprises a shell body component, a tube bundle component, an upper head component and the like. A downstream edge of a fan-shaped baffle plate of a spiral baffle plate set of the tube bundle component is bent upwards to form a liquid blocking weir which is arranged among rows of tubes. An upstream liquid dredging opening and a downstream liquid dredging opening are formed in an arc-shaped edge of the fan-shaped baffle plate. An inclination angle of the fan-shaped baffle plate is reduced in sections from top to bottom. The spiral baffle plate set can be a two-head spiral or a three-head spiral. The fan-shaped baffle plate not only supports the tube bundle, but also is in favor of drying the surface of the tube bundle by scraping, guides condensing liquid to the inner wall of the shell body, discharges the condensing liquid to the bottom portion along the wall surface, enables a tube which is arranged under the baffle plate to directly contact steam through the dry surface and improves condensation heat transfer coefficient. The U-shaped tubular condenser of the vertical type spiral baffle plate enables the heat transfer coefficient of the vertical type shell-and-tube condenser which has the advantages of being small in occupied area, enabling the tube bundle to be conveniently taken out and being convenient to repair to be improved.

The invention discloses a construction method of a building cast-in-situ bored pile. The construction method comprises the steps of drilling in advance, cleaning, burying a shield-tube, preparing mud, drilling by using a machine and discharging the residue of the mud in a circulating way, reaming, performing borehole cleaning, making and placing a steel reinforcement cage, and pouring concrete. According to the construction method, geological conditions can be known before filling the pile by means of drilling in advance, and whether the geological conditions meet construction conditions or not can be determined, so that the type of a drilling machine is more easily determined in advance, and the construction efficiency and project quality are improved; the drilling machine and components and indexes of the mud are selected according to the geological conditions, so that the construction efficiency is very high, a great deal of manpower is saved, and construction is safe; the steel reinforcement cage adopts a triangular reinforcement frame and a concrete base, so that the strength and stability of the steel reinforcement cage are improved; therefore, the construction method of the building cast-in-situ bored pile has the advantages of high safety, environment friendliness, high efficiency and wide application scope. The building cast-in-situ bored pile has the advantages of being high in supporting strength and high in quality.

The invention discloses a three-dimensional all-solid-state mini thin-film lithium battery with an inverted pyramid array structure, and relates to lithium batteries. The three-dimensional all-solid-state mini thin-film lithium battery is provided with a substrate, an insulation film, a cathode current collector, a lower anode current collector, a cathode film, a solid electrolyte film, an anode film and an upper anode current collector, wherein the insulation film is arranged on the substrate; the cathode current collector and the lower anode current collector are arranged on the insulation film; the cathode film is arranged on the cathode current collector; the solid electrolyte film covers the cathode film; the anode film is arranged on the solid electrolyte film; the upper anode current collector is arranged on the anode film and the lower anode current collector. Based on the anisotropic etching of a silicon substrate, the inverted pyramid array structure is precisely manufactured and applied to the all-solid-state mini thin-film lithium battery, so that the capacity of active substances in unit standing area is improved and the contact between the thin films is tight. According to the unique design of a mask, the upper and lower circuits are guided to a same plane, so that the space utilization rate and the structure stability of the mini battery are effectively improved.

The invention belongs to the technical field of oil-gas field gas extraction production and discloses a novel floatable solid foam scrubbing rod. The novel floatable solid foam scrubbing rod comprises, by mass, 40-60 parts of a foaming agent, 10-20 parts of a foam stabilizer, 10 parts of a filler, 5 parts of a solubilizer, 3 parts of a fluidizer and 2 parts of a lubrication release agent. The foaming agent adopts one or more of dodecyl oxethyl sulphobetaine, dodecyl hydroxypropyl sulphobetaine and dodecyl sulfopropyl betaine; the foam stabilizer adopts one or two of coconut oil monoethanolamide and dodecyl polyglucoside; the filler adopts thiourea; the solubilizer adopts water soluble solid salt; the fluidizer adopts polyvinyl alcohol; and the lubrication release agent adopts one or two of polyethylene glycol 6000 and sodium benzoate. The foam scrubbing rod is small than or equal to shaft liquid loading in density and can float on the shaft liquid loading, the influence of liquid loading on foaming is reduced, foam scrubbing performance is further improved, the foaming quantity is increased, and the liquid drainage effect is improved.

The invention provides air current suction type groundsill drainage, in particular a drainage in which an air current channel is formed inside a displacement hull by supplementing and pumping air so as to smoothly discharge the water content in the groundsill and to consolidate the groundsill. The prior art has the shortcomings of difficult drainage and bad effect. The invention has the following steps: 1. the displacement hull with a drainage channel is provided with at least one vertical hollow tubes inside; 2. the displacement hull with vertical hollow tubes is inserted into the groundsill; 3. the groundsill is pressed; 4. the air is led into the displacement hull from the hollow tubes and the air is pumped from the upper end of he drainage channel of the displacement hull, and the groundsill water is drained earthward along the displacement hull. The air can flow in the drainage system by forming the air current channel, thereby fulfilling the purposes of improving the drainage effect, being convenient to use by less labor, having good drainage effect and effectively guaranteeing the groundsill treatment quality.

The invention provides a U-shaped well system and a drilling method thereof. The U-shaped well system comprises a straight well (10) and a horizontal well (20). The horizontal well (20) comprises a vertical well section (21), a horizontal well section (22) and a transition well section (23) connected between the vertical well section (21) and the horizontal well section (22). The end, away from the transition well section (23), of the horizontal well section (22) is communicated with the straight well (10). The horizontal well (20) further comprises an inclined branch well section (24), and one end of the inclined branch well section (24) is connected to the horizontal well section (22). According to the technical scheme, the problems that in the prior art, the control area of coalbed methane extraction is limited, and the extraction amount can be hardly improved can be effectively solved.

The invention relates to an integral irrigation and drainage pipe system of a saline-alkali soil farmland. The system is characterized in that an irrigation pipe (3) is inserted in a drainage pipe (2) to integrate a main pipe of integral farmland drainage water collection pipes and water transmission pipes; prefabricated concrete four-way anchor blocks (4) are arranged on the main pipe in a segmented manner; the other two opposite ends of the prefabricated concrete four-way anchor blocks (4) are respectively in butt joint with drainage pipes (2) of branch pipes and irrigation pipes (3) to integrate branch pipes of integral farmland drainage water collection pipe and water transmission pipe; prefabricated concrete three-way anchor blocks (6) are arranged on all the branch pipes at intervals; water supply vertical pipes (21) are arranged in water supply vertical pipe passing holes (1) of the prefabricated concrete three-way anchor blocks (6); and hydrants (5) are mounted on the water supply vertical pipes (21). The system realizes sleeving installation of two sets of pipe networks, improves the use coefficient of irrigation water, is better in drainage and dirt reduction effects, and is better in ecological and economical benefits in improvement of salinization farmlands.

The invention discloses an ocean spilled oil collecting device. The invention discloses an ocean spilled oil collecting device. The objective of the invention is to solve a shortage that ocean spilled oil is not collected thoroughly by a current spilled collecting device. The collecting device comprises a floating block. An oil passing groove is arranged in the middle of the floating block. A slide rod is arranged on the front end of the oil passing groove. A slide block is slidably connected to the slide rod. An oil absorbing pump and an oil storage tank are installed on the floating block. A flexible oil absorbing pipe is installed on the oil absorbing pump. The front end of the oil absorbing pipe is installed on the slide block. A secondary oil absorbing mechanism is installed behind the slide rod in the oil passing groove. The secondary oil absorbing mechanism comprises a conveyor belt, a driving pulley, a driven pulley and a tensioning pulley. An oil absorbing belt is connected to the external surface of the conveyor belt. The conveyor belt between the driven pulley and the tensioning pulley is near the ocean surface. A squeezing wheel and a supporting belt pulley, which are oppositely arranged, are arranged between the tensioning pulley and the driving pulley. The supporting belt pulley is in transmission connection with the inner surface of the conveyor pulley. The squeezing pulley is abutted against the outer surface of the oil absorbing belt. An oil collecting groove is arranged under the squeezing pulley.

The invention provides a vortex flow guiding device. For overcoming the defects of low water-draining gas-recovery effectiveness, large oil pipe pressure loss and liquid draining capability reduction in an existing vortex flow guiding device. The vortex flow guiding device comprises a core shaft and a flow guiding hose. The flow guiding hose spirally winds the external circular surface of the core shaft. The upper end of the core shaft is provided with a fishing head, and the lower end is provided with a thread which is connected with a water-draining gas-recovery downhole device. The screw pitches of the flow guiding hose which spirally winds the external circular surface of the core shaft are unequal. Two ends of the flow guiding hose are fixedly connected with the core shaft. The vortex flow guiding device is advantageous in that reasonable structure is realized; downhole fluid can be separated and moved more effectively; furthermore the shape of the vortex flow can be adjusted according to different well conditions and the downhole fluid is conveyed to ground more efficiently, thereby improving applicability of a vortex flow water-draining gas-recovery device, effectively reducing pressure loss of the oil pipe and improving efficiency in vortex flow water-draining gas-recovery.

The invention discloses a flow rectifying device for improving the outlet water flow state of an arc drainage box culvert and belongs to the technical field of municipal drainage. The flow rectifying device is arranged in the arc drainage box culvert. The inlet section and the outlet section of the arc drainage box culvert are straight sections, and the middle section of the arc drainage box culvert is an arc section. Flow guide piers are distributed at the tail end of the arc drainage box culvert. A first cross beam penetrates through the flow guide piers. The two ends of the first cross beam perpendicularly intersect with the two side walls of the box culvert. A second cross beam is arranged at the tail end of the straight outlet section of the arc drainage box culvert. The flow rectifying device can improve the outlet water flow state of the arc drainage box culvert, the problem of deviation of outlet flow of the arc drainage box culvert is solved, and thus, an outlet of the arc drainage box culvert can be effectively protected against deposition and blocking, and adverse effects on navigation of ships in an external river channel are avoided. The flow rectifying device for improving the outlet water flow state of the arc drainage box culvert is simple in structure, easy to process and manufacture and suitable for being applied and popularized in various municipal drainage system construction and transformation projects with arc drainage box culverts.

The invention provides an integrated sewage treatment device. A mud-water mixed solution sequentially flows through a mud-water mixing area, a primary biochemical area and a secondary biochemical area along the length direction of a box body, a part of sludge and a part of mixed solution in the secondary biochemical area are refluxed back to the mud-water mixing area by a refluxing mechanism and then return to the primary biochemical area to form a circulation, and nitrification liquid returned to the secondary biochemical area is subjected to denitrification reaction in the oxygen-deficient primary biochemical area to remove total nitrogen and improve the sewage treatment capacity. Moreover, the mud-water mixing area is arranged on the integrated sewage treatment device to ensure that refluxed sludge, inflow water and the mixed solution refluxed into the secondary biochemical area are mixed together, and then the mixture overflows out of a clapboard of the mud-water mixing area and enters the primary biochemical area, so that on the one hand, an effect of buffering water flow is achieved to ensure that liquids are mixed more fully, and on the other hand, the mud-water mixed solution flows into the primary biochemical area in the form of a line under the action of overflowing, and the retention time of the mud-water mixed solution is almost identical, so that the sewage treatment effect is stable.

The invention relates to medical human body wound drainage consumables and provides a three-cavity negative-pressure wound irrigation and drainage tube. The negative-pressure wound irrigation and drainage tube comprises an in-vivo drainage tube and an in-vitro connection tube, wherein the in-vivo drainage tube adopts an integral structure and is provided with a main drainage tube, an irrigation tube and a guide wire implanting tube which are parallelly arranged lengthways; the main drainage tube is arranged in the geometric center of the in-vivo drainage tube, and the irrigation tube and the guide wire implanting tube are located at the periphery of the main drainage tube; a lower groove is formed in the outer wall of the in-vivo drainage tube, and a plurality of drainage openings are formed in the lower groove and communicated with the main drainage tube; the in-vitro connection tube comprises an in-vitro drainage tube, an in-vitro irrigation tube and an in-vitro guide wire implanting tube which are mutually independent; the in-vitro drainage tube, the in-vitro irrigation tube and the in-vitro guide wire implanting tube are respectively communicated with the main drainage tube, the irrigation tube and the guide wire implanting tube which are arranged at the outer end of the in-vivo drainage tube. The three-cavity negative-pressure wound irrigation and drainage tube mainly adopts a three-cavity structure, is used for drainage of wounds deep in a human body and has the effects of being accurate in implanting, favorable in drainage and irrigation, resistant to blockage, and the like.

The invention discloses a waste liquor drainage tank for a slit nozzle and a slit nozzle cleaning device, relates to the technical field of slit nozzles and aims to solve the problem of poor liquor drainage effect of an existing waste liquor drainage tank due to the fact that glue liquor easily remains at the bottom of a groove. The waste liquor drainage tank comprises a body, a groove is formed in the upper surface of the body, a waste liquor drainage channel is arranged at the bottom of the groove, the side surface of the groove comprises at least one inclined surface, the bottom end of the inclined surface is inclined along the direction far away from the corresponding outer side surface of the body relative to the top end of the inclined surface and connected with the waste liquor drainage channel, and the inclined surface is a plane or arc face. The waste liquor drainage tank is used for draining the glue liquor remaining in the slit nozzle.

The invention discloses a white tea cutting medium. The white tea cutting medium is prepared from modified vermiculite, modified bentonite, river sand, low moor peat, bark of Melia azedarach L. and a solution of tea-oil tree fruits. Matter of different ingredients is matched according to the growth characteristics of tea, and the prepared medium is excellent in comprehensive physical and chemical property, can be repeatedly used and can increase the survival rate of cutting slips and improve the growth vigor of seedlings. The bred cutting slips can be easily taken out, the risk of root system damage is lowered, planting in the later period is facilitated, and high use value is achieved.

The invention discloses a post-cast strip construction and drainage method for a base plate of a basement. The method is characterized by comprising the following steps: a) prefabricating a permeable tube and a cover plate; b) pre-burying the permeable tube and the cover plate; c) draining a post-cast strip; d) constructing post-cast strip concrete; e) preserving the concrete. With the adoption of a scheme that a permeate well is arranged in the post-cast strip of the base plate of the basement, the method disclosed by the invention not only can meet the collection and the discharge of surface water, but also meet the permeation and the discharge of underground water. The construction of the post-cast strip of the base plate and the combination with a pre-cast base plate are facilitated, and the method has the advantages of simplicity in construction and good permeation and discharge effects. Furthermore, the probability of leakage of the post-cast strip of the base plate is greatly reduced.

The invention discloses a special drainage nursing device for the hepatological surgery department. The device comprises a first barrel body and a second barrel body located above the first barrel body, wherein the two sides of the top of the first barrel body are fixedly provided with brackets respectively, the bottoms of the two sides of the second barrel body are fixedly arranged at the opposite sides of the two brackets respectively, and one side of the first barrel body is provided with a handle; the first barrel body is provided with a hydrops collection chamber and a disinfectant storage chamber located in one side of the hydrops collection chamber, and the disinfectant storage chamber is adjacent to the handle. The special drainage nursing device for the hepatological surgery department has the advantages that the structural design is reasonable, the volume is small, convenience is provided for people to carry and use, the hydrops in the liver and gallbladder can be conveniently and quickly discharged, the drainage effect is good, the operation is simple, electric driving saves time and labor and improves the working efficiency, cleaning and maintenance are convenient afterdrainage, convenience is provided for people to disinfect and clean the hydrops collection chamber, and the subsequent reuse is facilitated.

The invention discloses blockage dredging and draining enhancement process for drain holes of side slopes and a device for the blockage dredging and draining enhancement process. Silt deposited in a drain pipe is removed manually or mechanically at first, then a high-pressure air inlet pipe is inserted into the drain pipe, pressure loss plugging is carried out at an outlet end of the drain pipe, compressed air which is compressed by an air compressor is pumped into the drain pipe via the air inlet pipe, the silt blocked in a small hole on the drain pipe is removed by the aid of impact force of the compressed air, then permeation consolidated soil surrounding the drain pipe is in pressure split by the aid of the compressed air entering the permeation consolidated soil via the drain pipe, and is loosened, and gaps are formed in the permeation consolidated soil. The blockage dredging and draining enhancement process and the device aim to solve the problem that a draining effect is deteriorated or a draining function is invalid after existing drain holes of side slopes are used for a long time, small hole of a filter pipe section is washed by the high-pressure compressed air, the soil outside the drain pipe is split by the aid of the high-pressure compressed air, and accordingly, effective permeability of the drain pipe is recovered or enhanced.

The invention provides a silica gel vacuum sealing drainage dressing, and belongs to the technical field of medical equipment. The silica gel vacuum sealing drainage dressing solves the technical problem that an existing silica gel vacuum sealing drainage dressing is poor in drainage effect. The silica gel vacuum sealing drainage dressing comprises a dressing body. A drainage structure which can discharge percolate under the effect of negative pressure is connected to the dressing body. The silica gel vacuum sealing drainage dressing is characterized in that the dressing body comprises a silica gel layer which can be attached to a human body, through holes are evenly distributed in the silica gel layer, a liquid storage and filter layer and an absorption structure are sequentially arranged on the silica gel layer, the liquid storage and filter layer has the storage and filter functions, and the absorption structure has the percolate absorption function. The silica gel vacuum sealing drainage dressing can be used for processing a small amount of percolate at a postoperative incision, the drainage effect is good, wounds can be prevented from bleeding, and the silica gel vacuum sealing drainage dressing has the advantages of accelerating wound healing, decreasing the number of dressing change times and saving resources.