33results about How to "Good dredging effect" patented technology

The invention relates to the technical field of pipeline sludge equipment, in particular to efficient pipeline dredging equipment for sewage treatment. The efficient pipeline dredging equipment comprises a housing, a traveling assembly, a crushing and dredging assembly, a reverse rotary mechanism and a steering drive mechanism, wherein the traveling assembly comprises a spacing regulating mechanism, a traveling drive mechanism and a front-end displacement mechanism, the spacing regulating mechanism is fixedly mounted at the tail end of the housing horizontally, and the traveling drive mechanism is fixedly mounted at the output end of the spacing regulating mechanism; the crushing and dredging assembly comprises a first crushing paddle for crushing sludge and a crushing mechanism for crushing sludge blocks, and the first crushing paddle is arranged at the front end of the housing. The efficient pipeline dredging equipment for sewage treatment disclosed by the invention can automaticallytravel in a pipeline, can quickly dredge sludge blocked in the pipeline, can flexibly turn in the pipeline, can clear sludge around the corner of the pipeline, can further perform crushing treatmenton large pieces of sludge, prevents secondary accumulation, and improves dredging effect.

The invention discloses a pipeline dredging robot in the technical field of pipeline cleaning. The robot is provided with a shell, rolling wheels, a driving shaft, a motor and a connecting flange; themotor is fixedly connected to the outer wall of the shell, the side wall of the shell is embedded into the connecting flange, an output end of the motor is connected with the driving shaft, the two ends of the driving shaft are connected with the rolling wheels, one end of a sleeve shell is fixedly connected with one end of a connecting column, a first stepping motor is installed at the other endof the sleeve shell, a lighting torch parallel to the sleeve shell is fixedly connected to a mounting base, a camera is installed on the lower portion of one end of the lighting torch, the other endof the connecting columns is fixedly connected with a dredging box, and a sewage pump is installed in an inner cavity of the dredging box. Accordingly, blockages are broken and discharged, secondary blocking of the blockages is prevented, and meanwhile the stability of a robot body can be kept in the dredging process; the dredging effect is good, and the practicability is high.

The invention discloses a pipe-dredging vehicle, which comprises a vehicle chassis, a truck bed arranged on the vehicle chassis, a self-discharging dump bucket arranged inside the truck bed, a telescopic bracket, a windlass, a toolbox, a cleaning machine, a hydraulic block, a CPU controller and a remote controller arranged outside the truck bed, a conductor, and a pulley machine. The tail of the pipe-dredging vehicle is aligned with a pipeline A wellhead, while the front part is aligned with a pipeline B wellhead; a telescopic machine is pushed out, and a back wire rope passes through an excavator and is connected with an inner ring of a removable cover plate; and a front wire rope passes below the vehicle chassis, and moves forwards to get into the B wellhead and get out of the A wellhead to be connected with an outer ring of the excavator. CPU program is started to drive power; and driven by the wire rope to operate between the pipeline and the vehicle back and forth, the elevator sends dredged sludge and sandstone onto the vehicle and automatically unloads. The vehicle has high mechanization, automation level and stable performance, and can solve the problem that sanitation workers cannot solve, greatly saves the energy consumption, alleviates environment pollution, reduces the labor intensity of workers, and improves the working efficiency.

The invention discloses an integrated central feeder which solves the problem that existing devices are huge in structure and large in energy consumption. The integrated central feeder is characterized by comprising a straight-barrel feeding bin, a central discharging pipe, a hydraulic oil station and four hydraulic pushing devices, wherein the hydraulic pushing devices are uniformly arranged around a lower wall of the straight-barrel feeding bin, each hydraulic pushing device comprises a pushing plate, a pushing rod, a sealer and an oil jack, the pushing plates are mounted on the pushing rods which penetrate through a wall of the straight-barrel feeding bin to be connected with piston rods of the oil jacks through the sealers, the oil jacks are fixed on the wall of the straight-barrel feeding bin, and each pushing plate comprises an arc-shaped plate, a wedge-shaped scraping plate, a straight-plate scraper and a retaining plate. The integrated central feeder is good in sealability, convenient to repair and maintain, low in energy consumption, supportive of automatic start during material blockage, reasonable in design, simple in structure, obvious in dredging effect, energy-saving, environment-friendly, high in adaptability, suitable for solving problems of blockage of a raw coal bin, unsmooth coal unloading and the like of a thermal power plant, and also suitable for storage bins for material conveying of other industries.

The invention discloses an anti-blocking and flying-dust-free type cement transfer tank for a highway construction site. The cement transfer tank comprises a container which is in a cuboid shape, a tank body is arranged in the container, a discharging opening extending out of the bottom of the container is formed in the lower end of the tank body, a discharging valve is arranged at the dischargingopening, the top of the container is provided with a top cover used for sealing the tank body, a feeding hole and a feeding exhausting device are arranged on the top cover, an automatic feeding sealing device is arranged at the feeding hole, a discharging pressurizing mechanism is arranged on the upper side part of the container, and a knocking anti-discharging-blocking device is arranged betweenthe bottom of the container and the outer side of a conical structure of the tank body. The cement transfer tank has the advantages that the structural design is reasonable, feeding and discharging are convenient and rapid, good sealing performance is achieved, moreover, vibration unblocking can be achieved when blockage occurs in the tank body, cement powder conveyed by a cement tank truck can be directly discharged into the tank body of the cement transfer tank, so that the cement tank truck is liberated, then the cement tank truck can transport cement for a plurality of times, the cement transfer tank can be placed on the construction site and can also be placed on an engineering transport vehicle.

The invention belongs to the field of medium-carbon ferrochrome production, in particular to packaging equipment for producing medium-carbon ferrochrome. The packaging equipment comprises a feeding hopper and a packaging plane, wherein the feeding hopper is arranged right above the packaging plane, one side, close to the packaging plane, of the feeding hopper is connected with a discharging cylinder, an adjusting box is arranged on one side of the discharging cylinder, one side face of the adjusting box is fixedly connected to the outer wall of the discharging cylinder, four groups of extruding blocks are movably arranged in the discharging cylinder, the extruding blocks are arranged in the length direction of the discharging cylinder, the extruding blocks are vertically connected to the inner wall of the discharging cylinder through supporting rods, and one ends of the supporting rods perpendicularly penetrate through the extruding blocks and extend into the adjusting box; and the inner walls of one sides of the extruding blocks and the inner wall of one side of the discharging cylinder are connected through springs, and the springs movably wind the surfaces of the supporting rods. According to the packaging equipment, two groups of trapezoidal top blocks are arranged in the adjusting box, and in the process of moving the trapezoidal top blocks, the extruding blocks can be driven to move back and forth in the discharging cylinder, and the effect that the extruding blocks move back and forth is better.

The invention relates to an air spray composition for refreshing and sterilizing in vehicles and a preparation method. The air spray composition is formed by mixing 0.1-1.2% of rosemary essential oil,0.1-1.2% of grapefruit essential oil, 0.1-1.2% of tangerine essential oil, 0.001-0.1% of vervain essential oil, 0.001-0.1% of lemon essential oil, 0.1-1.2% of mint essential oil, 0.001-0.5% of tea tree essential oil, 1-3.2% of medical span 80, 0.01-3.2% of medical grade triethanolamine and medical purified water at a ratio. The air spray composition has unique fragrance and simple composition; all the raw materials interact with each other so as to adjust the mental state of human body; the effects of refreshing and sterilizing are obvious and long-lasting; the environment-friendly air spraycomposition for refreshing and sterilizing in vehicles provided by the invention is filled with nitrogen and high-purity air, is safe and reliable and is pollution-free; the preparation method is simple; the cost is low; the air spray composition is suitable for different occasions and is worthy of promotion.

The invention discloses a pipeline hair dissolving agent. 100 mass% of the pipeline hair dissolving agent comprises, by mass, 16-20% of protease, 10-18% of sodium peroxycarbonate, 11-15% of sodium lauryl sulfate, 3-7% of a silicate ion surfactant, and the balance of water. The invention further discloses a preparation method of the pipeline hair dissolving agent. When the pipeline hair dissolvingagent is used, the pipeline hair dissolving agent is directly poured into a to-be-dredged pipeline to react with hair in the pipeline and dissolve the hair, so professionals are not needed, the time and money consumption is small, and the dredging effect is good; and the preparation method of the pipeline hair dissolving agent has the advantages of simple and convenient preparation process and lowcost, and can be used for large-batch industrial production.

The invention relates to the technical field of sewer desilting, and discloses a novel pipeline desilting device and process. The desilting device comprises a high-pressure cleaning device, a pumpingdevice, a filtering and purifying device, a spinning dehydration device and a thermal cycle automatic discharging and drying device, and the inner wall of a sewer pipeline is sprayed and cleaned through the high-pressure cleaning device. Then, sewage in the sewer pipeline is pumped out through the pumping device, the inner wall of the sewer pipeline is cleaner after being subjected to high-pressure washing, sludge in the pipeline is easier to pump out after being washed and diluted with water, and the desilting effect is better. In addition, the pumping device is connected with the filtering and purifying device, the pumped sludge is directly purified, the sewage treatment procedure is simplified, the sewage treatment efficiency is effectively improved, in addition, and a continuous pipe conveying device and a pipe bending mechanism in the high-pressure cleaning device convey a steel water pipe into the sewer. Compared with the prior art, the desilting device can well go deep into various sewer pipelines for desilting operation, and the desilting effect is better.

The invention discloses a water conservancy project rapid dredging device with a stirring function. The water conservancy project rapid dredging device with the stirring function comprises a bottom plate, wherein a plurality of supporting columns are fixedly installed on the lower portion of the bottom plate, a fixing plate is fixedly installed on the lower portion of each supporting column, a rolling wheel is rotatably installed on each fixing plate through an installation frame, a driving motor is fixedly installed on one of the installation frames, the driving end of the driving motor is fixed to the two rolling wheels on the left side, two fixing pins are slidably installed on each fixing plate, a placing mechanism is installed between each fixing pin and the corresponding supporting column, a top plate is fixedly installed on the bottom plate through two supporting rods, and an electric telescopic rod is fixedly installed on the top plate. The water conservancy project rapid dredging device has the advantages that the dredging depth can be freely adjusted, silt can be stirred while dredging is carried out, a dredging pipe can be prevented from being blocked, a main drill bit and a stirring rod after dredging can be automatically flushed and cleaned, and the dredging effect is good.

The invention provides a desilting agent containing denitrifying salt-enriching bacteria, which includes biocatalyst, nonionic surfactant, cactus extract, licorice extract, dandelion extract, biological enzyme active agent, potassium nitrohumate, mustard acid, fulvic acid, multivitamin, substrate, porous sodium-type activated zeolite powder carrier, halophilic bacteria, denitrifying salt-rich bacteria, cross-linking agent; the present invention also provides a desilting agent containing denitrifying salt-rich bacteria in Application in the salt-discharging dark pipe; the dredging agent of the present invention reduces the five-day biochemical oxygen demand (BOD) of water in the salt-discharging dark pipe ₅ ), the five-day biochemical oxygen demand after 100-fold dilution of the water at the outlet of the salt discharge concealed pipe is 8.5‑10.7 mg/L; the content of suspended solids in the salt discharge concealed pipe water has been reduced, and the content of suspended solids in the salt discharge concealed pipe water is 7.7‑ 10.1%; the dredging effect is good. After one year of dredging, the removal rate of total phosphorus in water reaches 85.7-90.1%, and the content of small molecule soluble carbon in water reaches 55.1-57.3%, compared with 30.0% in the control group.

The invention discloses a material surface sludge cleaning device for chemical production. The material surface sludge cleaning device comprises a sealing cover, a water inlet pipe, a box body, feeding barrels, fan blades, a dryer, a discharge opening, a water outlet pipe, a fence, a water spray opening, a material passing plate, a limiting frame, a motor, brushes, a separation blade, a channel, atransmission frame, a water storage tank, a waste water tank and a pulling plate. The material surface sludge cleaning device has the beneficial effects that the multiple feeding barrels installed inside the box body are circularly distributed, and the motor is located below the center of a circular structure formed by the multiple feeding barrels, so that the motor and the fan blades driven by the motor can fully stir solid chemical articles and enable the washing process to be more completed; and a sealing structure between the fan blades and the motor effectively prevents water droplets from entering the motor; and the channel is of a hollow structure, and the multiple brushes arranged on the inner side of the channel are all obliquely arranged upwards on the inner side wall of the channel, so that the solid chemical articles form impact force with the brushes when falling, and the sludge cleaning effect is better.

The invention discloses compound fertilizer production equipment, which comprises a heating device, a bowl, a material stirring device, a material loosening mechanism and a material scraping mechanism, wherein the upper side surface of the heating device is provided with the bowl to be in contact with the heating device; the material stirring device is arranged in the bowl; two ends of the material stirring device are connected with the material loosening mechanism and the material scraping mechanism; through a motor, a cantilever is driven to rotate to drive the teeth of a harrow to rotate soas to loosen a material body; the material loosening mechanism and the material scraping mechanism rotate to loosen materials and scrap materials; through the cantilever, liquid leakage and drop irrigation are carried out, and the heating device is used for heating. According to the compound fertilizer production equipment, the problems of excessively complex original compound fertilizer production equipment, high cost, unsmooth surface of a particle product and big possibility of caking can be overcome, and the compound fertilizer production equipment has the characteristics of simple structure, low production cost, smooth and round particle product, small possibility of caking and simpleness and convenience in operation.

The invention discloses a vine drip irrigation pipe capable of dredging blocked drippers automatically. According to the drip irrigation pipe, supporting pipes are arranged on the upper portion of the drip irrigation pipe at intervals, water is stored in the supporting pipes, upper installation bases and lower installation bases are arranged at the outer upper portions and the outer lower portions of the supporting pipes respectively, nozzles are arranged on the lower portions of the upper installation bases, vibration blocks are arranged on the lower installation bases, stepped holes are formed in the vibration blocks and used for containing blocked drippers, and thus the drippers can be dredged when blocked through vibration of the vibration blocks and washing of the nozzles.

The invention provides a real-time monitoring system for the dredging effect of a small dredging boat with a rigid mechanical arm, which comprises a boat body, a dredging main body, a control displaydevice, a GPS reference station and a GPS mobile station, wherein the dredging main body is fixed on the boat body; two groups of signal receiving devices are arranged on the dredging main body; differential information and satellite positioning information of the GPS reference station are received by the two groups of signal receiving devices through radio communication chains so as to acquire and determine the position information of phase centers of the signal receiving devices; the two groups of signal receiving devices are electrically connected with the control display device through data wires; the control display device is used for receiving the position information acquired by the signal receiving devices; and the GPS mobile station is used for acquiring coordinate information ofa control point. By adopting the system in the invention, the dredging effect in a dredging process can be known in real time by adopting a data communication means on the basis of a global positioning system and the rapid settlement of data in the river dredging process, and the problem of omission of dredging points can be effectively avoided.

The invention discloses a preparation method of a bathroom water draining pipeline dredging agent. The bathroom water draining pipeline dredging agent comprises, by weight, 25%-35% of sodium carbonate, 5%-15% of sodium persulfate, 25%-35% of sodium hydroxide, 10%-15% of potassium permanganate, 10%-15% of aluminum particles and 5%-7% of a drying agent. The preparation method comprises the steps that sodium carbonate, sodium persulfate, sodium hydroxide and potassium permanganate are added into a mixer to be mixed at a certain vulcanizing temperature in an environment with a certain humidity; amixture obtained in the step 1 is added into a crushing machine to be crushed, and powder is prepared; the powder obtained in the step 2 is fed into a granulating machine to be granulated and then fedinto a screener to be screened, screened qualified products are fed into a moistureproof treatment device to be subjected to moistureproof treatment, and screened unqualified products return back tothe crushing machine to be crushed; and the qualified products obtained in the step 3 are fed into the mixer to be fully mixed to aluminum particles, drying agents are put into small packaging bags, and the products are obtained. The bathroom water draining pipeline dredging agent has the advantages that the dredging effect is good, transportation is convenient, and the practicability and the safety are achieved.

The invention relates to a non-Newtonian fluid valve blockage cleaning mechanism and application thereof to a shield tunneling machine. The non-Newtonian fluid valve blockage cleaning mechanism comprises a circular-tube-shaped straight tube body, an inclined tube arranged obliquely, a vibration plate installed at the tail end of the inclined tube, an ultrasonic transducer used for driving the vibration plate to vibrate, and a plurality of vibration rods distributed in an array mode, and flanges are fixedly installed at the two ends of the straight tube body respectively. The non-Newtonian fluid valve blockage cleaning mechanism is installed at the input end/output end of an existing slurry valve, acting vibration force and pushing force are generated, dredging operation can be conducted on a pipeline corresponding to the input end/output end of the slurry valve, and the dredging effect is good. The non-Newtonian fluid valve blockage cleaning mechanism and an existing slurry valve are easy and convenient to install and operate, the structure of the existing slurry valve cannot be changed at all, the non-Newtonian fluid valve blockage cleaning mechanism can meet the relevant standards of the current country, and the implementation effect is good.

The invention discloses an adjustable double-cavity stomach tube. The stomach tube comprises a main tube body; the tail of the main tube body is connected with a joint; the joint is provided with a first inlet, a second inlet and a connection port connected with the main tube body; and a rotatable adjusting mechanism is arranged in the joint to adjust the connection and disconnection among the first inlet, the second inlet, a main tube cavity and an auxiliary tube cavity. The rotatable adjusting mechanism arranged in the joint can flexibly change a mode of connection with the tube cavity of the double-cavity main tube body. The adjustable double-cavity stomach tube has multiple treatment modes of double tubes, single way and the like, can close an access passage of the double-cavity stomach tube, is applicable to short stop during treatment, and can ensure avoiding the access of unnecessary fluid or gas without extracting the stomach tube so as to furthest reduce the pain of a patient.

The invention belongs to the technical field of the dredging of sewer pipelines and particularly relates to a dredging tool for a PVC pipeline. The dredging tool comprises a steel mace, a protecting sleeve, an operation handle and a fixed bracket, wherein the protecting sleeve is arranged at one end of the steel mace and is mounted on the fixed bracket, and the operation handle is welded to the rear end of the protecting sleeve; and the operation handle is a steel bar 8# with the length of 10cm; and the fixed bracket is a triangular bracket welded through angle iron. In the dredging process ofa pipeline, the steel mace is inserted into a to-be-dredged pipeline, the protecting sleeve is mounted on the fixed bracket, the operation handle is shaken, the number of revolutions is adjusted according to the actual condition, the pipeline is dredged, and the tool is dismounted after the examination is finished. The dredging tool can be operated in a narrow and small working site, and meanwhile, a dredging device can be fixed, so that the cost is low, the operation is convenient, and the dredging effect is good.

The invention relates to the technical field of concrete processing and detection, and discloses a concrete pumping pipeline blockage part detection device. The concrete pumping pipeline blockage partdetection device comprises a fixing plate, a protective shell is connected to the right side of the fixing plate through a bolt, a connecting rod is connected to the right side of the protective shell through a bolt, an adjusting mechanism is arranged inside the fixing plate, a dredging mechanism is arranged on the left side of the fixing plate, and a motor is connected to the right side of the fixing plate through a bolt. According to the concrete pumping pipeline blockage part detection device, the distance between every two pulleys can be adjusted through a adjusting mechanism, so that theconcrete pumping pipeline blockage part detection device can adapt to pipelines with different diameters, then the practicability is improved, the concrete pumping pipeline blockage part detection device is directly fed into the pipeline through a connecting rod to inspect, then operation is simplified, the accuracy degree is higher, the dredging mechanism can smash smaller blockages in the pipeline and places with lighter blockage in the pipeline can be directly dredged, dredging can be conducted without the need of a pulling-out device, time waste is reduced, and the working efficiency is improved.

The invention provides a telescopic sink dredging device, which includes a telescopic bag and a dredging rod, and is characterized in that: the telescopic bag and the dredging rod are connected to each other, the telescopic bag is connected to the handle through a sealing plug, and the bottom end of the dredging rod is set There are round holes. The invention has the advantages of simple structure, good dredging effect, convenient manufacture, etc., has strong market economic value and is worth popularizing.

The invention discloses a dredging device with discharging bucket teeth. The dredging device with the discharging bucket teeth comprises a mainboard, wherein filter cloth is mounted on the upper surface of the mainboard; a movable connecting plate is arranged on the filter cloth, and is transversely arranged on the filter cloth; a rotating rod is arranged on the mainboard; the rotating rod is rotatably connected with the mainboard; the top of the rotating rod extends on the outer side of the upper surface of the mainboard; the bottom of the rotating rod is positioned on a rotating rod sleeve; the rotating rod sleeve is connected with the rotating rod in a sleeving manner; clamping plates are vertically arranged at the positions, close to the two end parts, on the lower surface of the mainboard; the clamping plates are connected with the mainboard in a sliding manner; the rotating rod sleeve is positioned between the two clamping plates; a plough-shaped plate head is arranged on the rotating rod sleeve and is detachably connected with the rotating rod sleeve. The simple dredging device with the discharging bucket teeth is high in cleaning quality; sludge can be cleaned better and can be enabled to be diffused better; the simple dredging device with the discharging bucket teeth is convenient to operate, high in work efficiency, low in cost, low in construction difficulty, good in dredging effect and long in service life.

The invention discloses a dredging device and a dredging method for blockage of slag falling pipe of a circulating fluidized bed boiler in a biomass power plant. One end of a guide rail support is hinged to a guide rail support fixed base, the other end of the guide rail support is supported on the free end of an angle adjustment unit, a guide rail is fixed in the guide rail support, a dredging rod is arranged on the guide rail support, one end of the dredging rod is disposed on the outer side of a dredging port, the other end of the dredging rod is hinged with a connecting rod, the connectingrod is hinged with a crank, and the crank is fixedly connected with a rotating shaft of a dredging work driving motor. A rotating shaft of an angle adjustment driving motor is connected with the angle adjustment unit, a sealing cover driving motor is arranged on one side of the slag falling pipe, a rotating shaft of the sealing cover driving motor is fixedly connected with a sealing cover, and the sealing cover closes the dredging port. The dredging device can replace manual dredging work, dredges the slag falling pipe on line and in real time, feeds back the dredging situation of the slag falling pipe, gives an alarm when the blockage cannot be dredged, greatly reduces the amount of manual slag poking work and improves the safety and economy of the power plant boiler.

The invention discloses a dredging device, which comprises a main plate, wherein filter cloth is mounted on the upper surface of the main plate; the filter cloth is provided with a movable connecting plate; the movable connecting plate is transversely arranged on the filter cloth; the main plate is provided with a rotating rod; the rotating rod is rotatably connected with the main plate; the top of the rotating rod extends to the outer side of the upper surface of the main plate; the bottom of the rotating rod is located on a rotating rod sleeve; the rotating rod sleeve is connected onto the rotating rod in a sleeving manner; places, which are close to two ends, of the lower surface of the main plate are vertically provided with clamping plates; the clamping plates are connected onto the main plate in a sliding manner; the rotating rod sleeve is located between the two clamping plates; the rotating rod sleeve is provided with a plough-shaped plate head; the plough-shaped plate head is detachably connected onto the rotating rod sleeve. The dredging device is high in cleaning quality; sludge can be removed better; the sludge from the dredging device can be diffused better; the dredging device is simple and convenient in operation, high in work efficiency, further low in cost, low in construction difficulty, excellent in dredging effect and long in service life.

The invention discloses a pipeline dredging cleaning agent which is composed of the following components by the mass percentage: 20-40% of sodium dichloroisocyanurate, 7-11% of a foaming agent, 2-6% of an adjusting agent, 2-10% of an interfacial active agent and the balance being water, and the sum of the mass percentages of the components is 100%. The invention further discloses a preparation method of the pipeline dredging cleaning agent. When the pipeline dredging cleaning agent is used, the pipeline dredging cleaning agent is directly poured into a to-be-dredged pipeline to react with impurities in the pipeline and dissolve the impurities, professionals and professional tools are not needed, time and labor are saved, additional damage to the pipeline is avoided, and the dredging effectis good; the preparation method of the pipeline dredging cleaning agent is simple and convenient in preparation process and low in cost, and can be used for industrial production on a large scale.

The invention provides a preparation method and application of a decompression and augmented injection agent for a water injection well. The decompression and augmented injection agent comprises the following components: 2-5% of an organic matter degradation agent, 10-15% of a chelating agent, 0.5% of a scale inhibitor, 0.5% of a composite surfactant and the balance of water. The invention further relates to application of the decompression and augmented injection agent for a water injection well. According to the invention, the chelate is subjected to complex reaction with inorganic scales in a water injection string, a near-well bore zone and a deep reservoir, so that the inorganic scales are converted into soluble complexes; the vegetable gum and the polymer residues are degraded by using an organic blocking remover; a composite surfactant with ultra-low interfacial tension is used for stripping residual oil on the surface of stratum rock, and finally plug removal and oil displacement of immediate vicinity of well bore and deep stratum are achieved. The technical defects of conventional acidification and surfactant well washing of the water injection well in the prior art are overcome, and the decompression and augmented injection agent has the advantages of being large in plug removal radius, good in pressure reducing and injection increasing effect, low in cost, simple in construction procedure, safe, environmentally friendly and the like.

The invention discloses a toilet dredger. The dredger comprises a pipe body and a leather cup, wherein the leather cup is connected with the pipe body by a valve; the toilet dredger also comprises a hopper; the length of the pipe body is 40-150 cm; the pipe body is made of plastics or rubbers; the diameter of the leather cup is 6-20 cm; a handle is arranged on the outer side of the pipe body; the pipe body is a three-stage sealed contracting pipe body; and the hopper is connected with the upper part of the pipe body of the dredger. The toilet dredger disclosed by the invention is simple in structure and easy to use; and blockages are washed away through the impact force of water, therefore, the toilet dredger is good in dredging effect, and satisfies the needs of daily life.

The invention provides a negative ion generator with a good dredging effect. The negative ion generator comprises a bottom plate, a flexible air pipe, a signal line, buckle plates, a holding base, a negative ion generation head, a rubber bracelet and a power socket, the buckle plates are symmetrically mounted on the left and right end surfaces of a protective shell, the bottom plate is mounted onthe lower end surface of the protective shell, the rubber bracelet is placed on the left side of the upper end surface of the protective shell, the right side of the annular side of the rubber bracelet is connected with the signal line, the holding base is placed on the right side of the upper end face of the protective shell, the rear end surface of the holding base is connected with the flexibleair pipe, a negative ion generating head is installed on the front side in holding base, and the power socket is installed on the lower side of the left end face of the protective shell. By means ofthe design, the problems that an original capillary dredging mode is inconvenient to use and poor in dredging effect are solved, and the negative ion generator is reasonable in structure, convenient to use and high in practicability and facilitates dredging of capillaries.

The invention discloses a desilting device for emergency treatment of damage of a sewage pipeline. The desilting device comprises a box body, a left-right through channel cavity is formed in the box body, and a power annular cavity is formed in the box body. According to the desilting device, sludge on the inner wall of the sewage pipeline can be removed through self-feeding in the sewage pipeline, smoothness of the sewage pipeline is facilitated, and meanwhile, the better dredging effect can be provided in a reciprocating rotating dredging manner; in addition, according to the device, a damage point of the sewage pipeline is judged according to the difference of water flow pressure in front of and behind the damage point of the sewage pipeline, and the sewage pipeline is directionally guided in front of the damage point, so that sewage can smoothly flow through a channel of the device without flowing through the damaged position of the pipeline, continuous leakage of the sewage is effectively avoided, and an emergency temporary response scheme is provided for pipeline damage; and meanwhile, a positioning device can be carried through the device, the damaged position of the sewagepipeline is effectively positioned, and a worker can repair the damaged pipeline in time.

The invention provides a process for eliminating hydrogenation process coking materials and deposits and a design method thereof. A removal agent is used for dredging on easy coking and depositing positions, and is prepared from additives and 250 to 520 DEG C distillate oil generated in the hydrogenation process; the additives are prepared from one or several kinds of materials from benzene sulfonate or naphthenate accounting for 0.1 to 0.7 weight percent of the total mass of the removal agents, one or several kinds of materials in amino amino trimethylene phosphonic acid, diethylenetriamine pentamethylphosphonic acid, edetic acid and HEDP accounting for 0.1 to 0.5 weight percent. A viscosity and pressure difference detection instrument is arranged in the easy coking and depositing positions for monitoring the viscosity and pressure difference change in real time; when the viscosity is higher than 750cSt or the pressure difference is higher than or equal to 100KPa, the dredge speed is10 to 15m/s, and the dredge temperature is higher than or equal to 200 DEG C; when the viscosity is higher than 250cSt but lower than or equal to 750cSt, or the pressure different is higher than 40KPabut lower than 100KPa, the dredge speed is 5 to 10m/s.