208 results about "Drainage ditch" patented technology

The utility model relates to a kind of communication structures of plant area road drainage ditch.It is applicable to water supply and drainage technical field.The technical scheme adopted by the utility model is: a kind of communication structures of plant area road drainage ditch, plant area road is staggered arrangement, the drainage ditch is arranged in road side, with: water guide ditch, transversely arranged in road, water guide ditch two ends are respectively connected with the drainage ditch of two roads staggered arrangement;Guide block, along water guide ditch length direction arrangement is in water guide ditch, guide block top is made with the water guide groove being set along water guide ditch length direction;Cover plate, arrangement is in guide block, cover plate can cover the opening of water guide ditch;Backfill, fill in the position of guide block around in water guide ditch.

This utility model discloses a prefabricated drainage ditch installation device with a guiding and positioning structure, comprising: a base layer, a bottom plate at the bottom of the base layer, and a support plate for supporting the whole; the inner surface of the base layer is filled with a layer of cement mortar, and the inner end of the upper surface of the base layer is provided with a plurality of positioning holes at equal intervals from front to back; the bottom end of the cement mortar layer is provided with a bottom plate, and the upper surface of the bottom plate is provided with adjustment grooves on both the left and right ends; the upper surface of the bottom plate is provided with side plates on both the left and right ends; the bottom outer end of the side plate is fixedly connected with a connecting protrusion, and the bottom upper surface of the side plate is provided with a connecting groove; the inside of the connecting groove is engaged with the bottom end of the support plate. This prefabricated drainage ditch installation device with a guiding and positioning structure can guide and position the drainage ditch before pouring cement into it, avoiding installation failure and material waste.

The present application relates to the technical field of tunnel construction, and particularly relates to a tunnel portal and tunnel body pipe shed construction method, step S1, portal side slope and portal drainage ditch construction is carried out, step S2, concrete arch is constructed in open cut section and buried section, step S3, step method is used for tunnel excavation, first, upper step arc-shaped guide pit is excavated, step S4, lower step excavation is carried out in staggered manner at a certain distance from the lag upper step working face, step S5, invert and tunnel bottom filling are poured at a certain distance from the lag lower step working face, and secondary lining construction is carried out after initial support, invert and tunnel bottom filling convergence; step S6, steps S4-S5 are repeated until tunnel construction is completed. The concrete arch is set, the concrete arch is used as a guide wall, the arch uses the existing soil layer as a formwork, so that the formwork setting difficulty is reduced, and the construction efficiency is improved.

This utility model relates to the field of concrete drainage ditches and discloses a slipform track structure for cast-in-place concrete drainage ditches. The structure includes an inner plate, an outer plate, and a transverse sleeve. Both the inner and outer plates are L-shaped and interlock. Sliding rods are fixedly connected to the inner sides of both the inner and outer plates, and rod holes are formed on the edges of both plates. These rod holes correspond to the sliding rods and are slidably engaged with them. Furthermore, sliders are fixedly connected to the upper corners of the same surfaces of both the inner and outer plates. This utility model, by designing the drainage ditch slipform track structure to allow adjustment of the width and side slope angle of the formed drainage ditch, avoids the limitations of existing drainage ditch slipform track structures, which use fixed templates and cannot freely adjust the width and side slope angle of the formed drainage ditch. This allows for the selection of more suitable specifications based on the changing conditions of the construction site.

This invention discloses a controlled drainage ecological regulation method for synergistic irrigation and drainage to reduce salinity and alkalinity, belonging to the field of soil remediation technology. The method includes: a soaking and dissolving stage, where, with the drainage outlet closed, low-flow irrigation is performed at the farthest point from the drainage ditch, allowing a large amount of irrigation water to enter the small pores of the soil profile and soak and dissolve salts; a diffusion and dispersion stage, where the drainage outlet is raised, and with the outlet height lower than the field surface, large-flow irrigation is performed evenly, filling all pores of the soil profile with irrigation water and enhancing the diffusion and dispersion of salts; a convection desalination stage, where the drainage outlet is opened, and with the outlet depth level with the drainage ditch depth, saline water is evenly discharged from the soil; and a water-saving and emission-reduction stage, where the drainage outlet depth is lower than the crop root zone, breaking the connectivity of small pores and preventing soil salts from moving upwards during crop growth. This synergistic irrigation and drainage achieves the three major goals of salt control, water conservation, and emission reduction.

The utility model relates to the technical field of marine environmental protection, concretely relates to a system for coral reef limestone geological foundation pit dewatering, including first dewatering pit, second dewatering pit, partition and drainage ditch. First dewatering pit is located the outside of construction land, second dewatering pit is located the side of first dewatering pit away from construction land, the pit bottom depth of second dewatering pit is greater than the pit bottom depth of first dewatering pit, partition is located between first dewatering pit and second dewatering pit, and partition is composed of coral reef limestone, and one end between drainage ditch and second dewatering pit is equipped with water pumping pipe, and the other end of drainage ditch is connected with sea outlet. The application can reduce the turbidity of the water body extracted in the foundation pit dewatering process by arranging the first dewatering pit, the second dewatering pit and the partition wall of coral reef limestone on the outside of the construction land, and avoid the water body with high turbidity directly discharged into the ocean.

The application relates to a road surface drainage structure, which comprises a road body and drainage ditches arranged on both sides of the road body, the side surface of the drainage ditch is provided with a curb, the height of the curb is higher than that of the road body, the side of the curb close to the drainage ditch is provided with a groove, the lower end of the groove is connected with the drainage ditch, the outer side of the groove is movably connected with a first grating plate, a second grating plate is arranged on the drainage ditch, the first grating plate is connected with the second grating plate and can drive the second grating plate to move through the first grating plate. The application can filter and drain water through the first grating plate and the second grating plate, improves the road surface drainage efficiency; meanwhile, the first grating plate is connected with the second grating plate, and the second grating plate can be driven to move through the first grating plate, so that the blockage at the second grating plate can be dredged, the drainage is recovered, and due to the fact that the first grating plate is arranged on the curb and the height is higher than that of the road body, the first grating plate can be found in time for dredging when water accumulates, and the water can be drained conveniently.

The present application relates to the technical fields of slope monitoring and reinforcing, and discloses a slope monitoring and reinforcing system based on highway construction, which comprises a retaining wall, a drainage ditch located on a slope is excavated on one side of the retaining wall, a reinforcing assembly is arranged on the other side of the retaining wall and fixed on the slope, drainage assemblies are sequentially arranged along the length direction of the slope, and drainage mechanisms are sequentially arranged on the top of the drainage assemblies and along the length direction thereof. The present application effectively avoids the soil erosion and settlement inside the soil layer caused by the large amount of seepage water, improves the strength of the slope, facilitates the monitoring personnel to timely monitor the state of the slope, can monitor the seepage and settlement state of the soil at different depths and directions of the slope, facilitates the management and maintenance personnel to monitor and maintain the internal state of the slope, improves the monitoring accuracy of the slope, and facilitates the timely maintenance and management of the slope.

This invention relates to the field of building construction technology and discloses a method for constructing drainage systems on basement roofs. The method includes the following steps: pre-treating the basement roof slab substrate; applying a waterproof coating to the pre-treated substrate; applying a waterproof membrane over the waterproof coating; laying a non-woven fabric over the waterproof membrane for isolation; pouring a protective layer over the non-woven fabric; and leaving drainage ditches on both sides of the junction between the basement roof slab and the main building, and on both sides of the post-cast strip. This invention utilizes the junction line between the basement roof slab and the main building, as well as the post-cast strip, as partition boundaries to divide the basement roof slab into several drainage areas. Within each drainage area, a slope is created from the center towards the drainage ditch, allowing water to quickly converge into the ditch. Simultaneously, the slope created by the waterproof mortar within the drainage ditch and its connection to the surrounding open ditches form a continuous drainage path, thereby significantly improving drainage efficiency and effectively avoiding water accumulation on the roof slab due to excessively long drainage paths.

This application belongs to the field of building technology, specifically relating to a retaining wall construction system based on the underground wall of a building, including a retaining wall and a drainage ditch. The retaining wall is located on the outside of the underground wall, with a polystyrene board between the retaining wall and the underground wall. Both the outer surfaces of the retaining wall and the underground wall have waterproof layers. The top slab of the underground wall extends towards the retaining wall, and a foam plastic rod is installed between the top of the retaining wall and the top slab. The drainage ditch is located at the connection between the top of the retaining wall and the top slab. This retaining wall construction system, where the extended section of the underground wall's top slab covers the retaining wall and is sealed with foam plastic rods for waterproofing, cleverly combines the underground wall and the drainage ditch. This prevents water from the soil from entering the separation point of the two walls, effectively blocking the water's entry and exit points, providing double waterproofing and ensuring that this area does not become a potential seepage risk.

To provide a drainage ditch surrounding member improved in the flow of drainage on the drainage ditch surrounding member after construction.SOLUTION: A drainage ditch surrounding member 10 has a first belt-like part 1, a second belt-like part 2, and a coupling part 3 for coupling the side end edge of the first belt-like part 1 with the side end edge of the second belt-like part 2, and the thickness of the first belt-like part 1 increases gradually or stepwise from the coupling part side end to the tip. Since the height of the first belt-like part 1 of the drainage ditch surrounding member 10 decreases gradually or stepwise from a resin floor material side toward the drainage ditch after the construction of the drainage ditch surrounding member 10, a drain flowing from the resin floor material 40 side flows easily to a drainage ditch 30, and it is suppressed from remaining on the drainage ditch surrounding member 10.SELECTED DRAWING: Figure 7

The utility model discloses a small -size drainage ditch drainage simulation teaching experiment device in the field of agricultural water conservancy, including the soil tank of inside filling soil, drainage ditch system, pressure measurement system, simulation rainfall system and water supply and drainage system, the drainage ditch system includes the fixed drainage ditch of being located soil tank side, inside the sleeve has movable drainage ditch, soil tank and fixed drainage ditch all are the cuboid structure of top opening and realize intercommunication through the porous water permeable board, the width of fixed drainage ditch is greater than the width of soil tank, and inside along its height direction and inserts high overflow board or low overflow board, high overflow board or low overflow board divides fixed drainage ditch into main ditch area and overflow area, movable drainage ditch includes the bottom plate that sets up in proper order, left side board, right side board and back side board, and the small overflow board is inserted between left side board and right side board, and a plurality of through -holes are seted up in the upper half portion of right side board and correspond porous water permeable board. The utility model can promote the field drainage experiment simulation effect and efficiency.

The utility model relates to linear drainage ditch field discloses a modular linear drainage ditch, including the quantity is two ditch body and sets up the cover body on two ditch body upside, two ditch body opposite side left and right sides all are equipped with the connecting mechanism for connecting two ditch body, and the left and right sides of cover body all are provided with reinforcing mechanism, the connecting mechanism includes the two groups of clamping slots that set up in two ditch body opposite side left and right ends, the clamping piece for two ditch body alignment, and the locking piece that two clamping ditch body are locked, the utility model discloses, adopt modular splicing's mode not only convenient linear drainage ditch's transportation, improve the flexibility when installing simultaneously, set up the sealing ring between adjacent module can effectively avoid groundwater seepage, the setting of clamping piece can be convenient for the quick butt joint between two ditch body between adjacent, and the intercoordination between locking piece can complete fixed between two ditch body, ensure the reliability of two ditch body between connection.

The utility model relates to prefabricated component technical field, concretely relates to a spliced copper tailing sand drainage ditch, including first drainage ditch main part and with first drainage ditch main part connects second drainage ditch main part, be provided with the connecting module between first drainage ditch main part and second drainage ditch main part, the connecting module will first drainage ditch main part and second drainage ditch main part connection state fixed, first drainage ditch main part and second drainage ditch main part between reserve expansion joint, the upper end of expansion joint is provided with expansion joint filling module, and connecting module will first drainage ditch main part and second drainage ditch main part fixed constitute complete drainage ditch, and the expansion joint that can reduce the problem of the expansion joint that exists in the integrated forming through the formation, and expansion joint filling module fills the expansion joint between first drainage ditch main part and second drainage ditch main part, guarantees the sealing property of expansion joint, avoids the water body and leaks through expansion joint gap.

This utility model relates to the field of drainage facility technology and is a drainage interception ditch for underground structures. It includes a drainage ditch frame with multiple baffles movably inserted inside. A pair of drainage channels are formed on the top of each baffle, and an adjustment channel is formed on the inner wall of the drainage channel. A pair of adjustment plates are movably inserted inside the adjustment channel. In use, the distance between the pair of adjustment plates can be adjusted by adjusting the depth of the adjustment plates into the drainage channel, thereby adjusting the size of the water inlet space for rainwater to enter the drainage channel. This allows personnel to adjust the size of the drainage mechanism according to the drainage volume, ensuring that no garbage or other debris enters the ditch during sunny days. Furthermore, it prevents rainwater accumulation and backflow flooding in low-lying areas during heavy rain due to the drainage mechanism being too small and the drainage speed lagging behind the rainfall intensity. During drainage, a clearing plate can be used to clear any foreign objects accumulated in the drainage channel, ensuring that external rainwater smoothly enters the drainage ditch frame.

A kind of drain ditch repair device and method, repair device includes feed hopper, gyro wheel, retraction rod, slide bar, T type push rod, adjustable push rod, retraction rod is placed in drain ditch, the lower portion of feed hopper is provided with gyro wheel support, adjustable push rod is arranged in the lower portion of feed hopper outside, feed hopper is used for discharging, adjustable push rod is used for leveling material laid by feed hopper;The lower end of adjustable push rod is connected with retraction rod, T type push rod is connected with adjustable push rod by slide bar, T type push rod drives adjustable push rod to follow feed hopper;Method for using, including the following steps: drain ditch bottom width adjusts the length of retraction rod, after adjusting, retraction rod is placed in drain ditch;Adjustable push rod is separated from feed hopper, after discharging, adjustable push rod follows and levels, repairs;In feed hopper, repair material is loaded, and the whole device is driven to roll forward by T type push rod;Fourth, feed hopper starts to discharge, adjustable push rod levels behind, repairs, completes drain ditch repair work.

This invention discloses a stepped drainage ditch with an energy dissipation structure, relating to the fields of water conservancy and construction engineering technology. It includes a drainage ditch body with a drainage plate at the top; drainage holes spaced apart on the drainage plate; a support plate symmetrically installed on opposite side plates inside the drainage ditch body; stepped units sequentially connected to two support plates, each stepped unit including a horizontal platform and a vertical or inclined drop section; and an energy dissipation component fixedly installed on the water-facing surface of the platform, protruding towards the direction of water flow. This invention combines the initial energy dissipation of the stepped structure with the energy dissipation component. The water flow first falls step by step on the continuous steps, being initially broken up and its velocity reduced. Subsequently, the energy dissipation component forcibly blocks and divides the water flow, further consuming the concentrated kinetic energy of the water flow. The energy dissipation efficiency is far higher than that of traditional single-structure drainage ditches, thus improving energy dissipation efficiency.

This utility model proposes a temporary cable tray structure for outdoor construction sites, comprising a drainage ditch and a cable tray trough. The cable tray trough is located above and in the middle of the drainage ditch. The drainage ditch is a long, narrow shell structure with a water inlet at the top and openings at both ends. The cable tray trough is also a long, narrow shell structure with a cable tray opening at the top and openings at both ends. The key feature is that the bottom surface of the cable tray trough has multiple support plates spaced at intervals along its length. The top of each support plate connects to the bottom surface of the cable tray trough, and the bottom end is located within the drainage ditch. The support plates have a trapezoidal structure, narrower at the top and wider at the bottom, with a drainage opening in the middle. Furthermore, the cable tray trough is securely connected to the drainage ditch via the support plates. In this utility model, the cable tray trough is always positioned higher than the drainage ditch, preventing construction wastewater and sewage from flowing into the cable tray trough. This greatly facilitates the long-term reuse of cables, enables rapid and stable installation, significantly reduces workload, and is beneficial for subsequent disassembly and reuse.

This utility model provides a sunken integrated purification tank device for farmland drainage ditches, including a precast concrete box. A stainless steel grating is movably embedded in the upper left side of the precast concrete box. Bending plates are welded to the upper end of the stainless steel grating, and a pre-filter box is welded to the lower end of the stainless steel grating. Multiple first hydraulic cylinders, multiple second hydraulic cylinders, and multiple third hydraulic cylinders are respectively installed on the upper end of the precast concrete box. A first lifting cover plate is slidably embedded in the middle of the upper end of the precast concrete box. First fins are welded to the upper four sides of the first lifting cover plate, and a biological treatment filter box is welded to the lower end of the first lifting cover plate. This design solves the problems of low treatment efficiency, large footprint, and easy clogging of mechanical structures in the original farmland purification tank. This utility model uses a modular filter component and a sunken integrated purification tank with a quick-disassembly and maintenance structure to improve treatment efficiency and reduce maintenance costs.

This invention relates to an outdoor artificial turf soccer field with good drainage and its construction method. It comprises, from top to bottom, a turf layer, an elastic layer, a filling layer, a shock-absorbing layer, and a base layer. The bottom of the base layer is fixedly connected to the top of a support column, and the bottom of the support column is fixedly connected to the support layer. Drainage ditches are provided along the edges of the support layer. The drainage channel connects to a collection assembly via a first connecting pipe. The collection assembly includes a collection tank, a drainage pipe, an irrigation pipe, a pump system, and a tee connector. The top of the collection tank connects to the first connecting pipe, and the bottom of the collection tank connects to one port of the tee connector via the pump system. The electric control valves at both ends of the vacuum pump are open, causing the vacuum pump to operate. This removes some air between the base layer and the support layer, creating negative pressure and accelerating rainwater infiltration through the turf layer, elastic layer, filling layer, shock-absorbing layer, and base layer, allowing rainwater to fall onto the support layer and facilitating rapid drainage.

The utility model discloses a high cold frozen soil area highway drainage ditch anti frost heave expansion device, including the drainage ditch body, the upper end surface of drainage ditch body is provided with the protection mechanism, and the protection mechanism is used for preventing the pedestrian and the vehicle to fall into the inside of drainage ditch body, and the protection mechanism includes the expansion screw that installs in the inside of drainage ditch body, and the outside of expansion screw is sleeved with the cushion block, and one end of cushion block is connected with the guardrail, and the inside of guardrail all is provided with the support rod, and the inside of drainage ditch body is provided with the anti frost heave mechanism, can use solar energy to heat the inside of drainage ditch body through burying the heat -collecting pipe and the cooling fin in the inside of drainage ditch body, effectively prevent the frost heave of drainage ditch body and highway, through the expansion pipe insertion inside drainage ditch body, and use screw thread connection expansion pipe, the convenient fixed installation support plate and the water stop tape, and the design of water stop tape can have good ductility and waterproofness, thereby can effectively prevent the water flow infiltration and frost heave caused by the expansion and settlement of drainage ditch body.

This invention belongs to the field of flood drainage and seepage technology for valley ash dumps. It proposes a composite flood drainage and seepage system and method for use in power plant valley ash dumps. The invention includes a drainage ditch set along the direction from the flood control dam towards the initial dam of the ash dump. The drainage ditch includes a flood drainage culvert at the bottom of the ash dump, a seepage ditch and a flood drainage ditch located above the flood drainage culvert. The bottoms of the seepage ditch and the flood drainage ditch share a common pool wall with the upper part of the flood drainage culvert. The adjacent side walls of the seepage ditch and the flood drainage ditch also share a common pool wall. This effectively reduces the foundation treatment area and land occupation, as well as the amount of steel reinforcement and concrete used, thus lowering the project cost. Simultaneously, the flood drainage ditch has an opening at its upper part and a cover plate placement groove. A seepage pipe is installed at the end of the drainage ditch away from the flood control dam. This system is suitable not only for flood drainage and seepage when upstream floodwaters flow into the ash dump along the slopes of both banks, but also for flood drainage and seepage under conditions of high rainfall.

The utility model discloses a drainage ditch structure, include: drainage groove and apron, apron covers and is located drainage groove top, is formed with the mounting groove on the apron, and the mounting groove is used for the intercommunication drainage groove and outside road surface, installs the blocking structure in the mounting groove, the blocking structure includes the baffle, and the baffle installs in the mounting groove, and the baffle is configured as can rotate in the mounting groove, to open the mounting groove, make drainage groove and outside road surface intercommunication, for outside road surface drainage, or / and close the mounting groove, make drainage groove and outside road surface not intercommunication, to prevent the stench in the drainage groove diffusion, through setting up the mounting groove on the apron and cooperation blocking structure, has realized nimble and effective drainage and prevented the function that the stench in the drainage groove diffused to outside air, simple structure, convenient operation and maintenance.

The utility model discloses a roof drainage structure relates to building construction technical field, aims at solving the problem that filter plate of drainage port is easy to block. Its technical scheme main points are: including the drainage ditch of setting in the roof side, the one side of drainage ditch near roof is provided with the connecting plate, is provided with the slope on the connecting plate, the slope is inclined to drainage ditch one side, is connected with the filter plate in the drainage ditch through the drive part rotation, the one side of filter plate near roof is connected with drainage ditch through the rotation axis. The utility model when raining, rainwater flows down along the roof, and filter plate allows rainwater to pass, but intercepts leaves, branches and other big bulk sundries, prevents sundries from entering into the drainage ditch, thereby prevents the situation that the drainage port is blocked, when more impurities, can drive the filter plate around the rotation axis and stick to camber rotation through the drive part drive filter plate, make the impurity can slide along the slope of filter plate, thereby the filter plate surface filter mouth can keep smooth.

The present invention relates to a drain for filtering foreign substances and inducing water drainage on the side of a road, and A drain pipe (10) formed horizontally inside; A drain hole (20) formed by penetrating vertically from the top to the drain pipe (10); A male coupling part (30) formed protruding from one side; A female joint (40) formed by being recessed on the other side; Composed of including, The male coupling part (30) and the female coupling part (40) of another unit can be combined with the female coupling part (40) and male coupling part (30) of another unit, respectively, to enable dry construction. The above drain hole (20) is characterized by having a grating (200) installed on its upper side. An improved drainage PC unit (100) is provided, characterized in that another branch pipe (300) is connected to the drain pipe (10) in the longitudinal direction.

This invention relates to the field of building construction technology. To address the technical problem of anti-buoyancy in underground structures under complex hydrogeological conditions, this invention discloses a dual-control system based on drainage anti-buoyancy and dynamic balance of underground buoyancy. The system includes a drainage unit located below the basement floor slab, comprising a drainage ditch or drain pipe to collect and divert groundwater; a sump well connected to the drainage unit to collect the collected groundwater; a drainage pipeline connected at one end to the sump well and at the other end to a rainwater storage tank or municipal drainage network to discharge the groundwater from the sump well; a submersible pump installed in the sump well to discharge groundwater through the drainage pipeline; and an automatic control device electrically connected to the submersible pump to automatically start and stop the pump based on the water level signal in the sump well. The anti-buoyancy control water level of the system is set below the level that can be balanced by the structure's self-weight and additional loads, achieving dual anti-buoyancy control through a combination of structural self-weight, additional loads, and active drainage.

This product is designed to be installed under gratings that are placed over drainage channels such as roadside waterways and gutters, or over catch basins in parking lots, in order to suppress the rise of odors inside the drainage channels. The odor-blocking panel is also sloped so that rainwater can wash away any sediment that accumulates on it, and is shaped to prevent water from accumulating, including rainwater.

The application provides a high-temperature region steep rock slope landscape greening system, which comprises a planting module arranged on a first horse path of a rock slope, the planting module comprises a water intercepting ditch, a planting groove and a drainage ditch, the planting groove comprises a surface layer, an infiltration layer and a water-retaining layer arranged in sequence from top to bottom, the bottom of the water intercepting ditch is communicated with the water-retaining layer, the drainage ditch is communicated with the infiltration layer through a first drainage channel, and the drainage ditch is communicated with the water intercepting ditch through a second drainage channel; a slope protection module arranged below the planting module, the slope protection module comprises a coconut mat arranged on a surface layer of the rock slope and a fine drainage pipe arranged in the same direction as the coconut mat, the fine drainage pipe is communicated with the drainage ditch through a drainage hole on the drainage ditch, and a plurality of surface fine holes are arranged on the fine drainage pipe. The application can improve the vegetation survival rate of the rock slope and further improve the greening effect of the rock slope.

The utility model belongs to drainage structure technical field, concretely relates to a rain and pollution shunt, including drainage box, apron and filter pocket, drainage box sets up in the drainage ditch of drainage area, apron is inlayed in drainage box upside, filter pocket sets up in drainage box and with apron position corresponding match, still be equipped with adjusting mechanism in drainage box, through the setting of adjusting mechanism, in the drainage process, can through the drive partition pole and turn over, play the effect of the impurity of clean apron surface blockage, make it be pushed away from apron area or directly fall into filter pocket, can also improve the flow of drainage, and still can further compress the impurity in filter pocket through partition pole, improve storage capacity and reduce maintenance frequency, the setting of T type scraper pole can provide certain cleaning effect to partition pole when turning over.