59results about How to "Avoid mud" patented technology

The invention discloses a formula of a ceramic aggregate aerated concrete brick and a method for making the concrete brick. The compositions in portion by weight of the concrete brick are: 12 to 26 portions of cement, 26 to 46 portions of fly ash, 16 to 28 portions of ceramic aggregate, 2 to 6 portions of slag, 2 to 6 portions of cinder, 16 to 26 portions of water and 2 portions of addition agent, wherein the concrete matters in percentage by weight of the addition agent are: 10 to 18 percent of aluminum powder (a foaming agent), 20 to 45 percent of polycarboxylate (a water reducing agent), 15 to 35 percent of 1122 fly ash excitant and 20 to 50 percent of coagulant hardening accelerator in which calcium chloride and sodium sulfate compounds respectively occupies 50 percent. The concrete steps for making the ceramic aggregate aerated concrete brick are as follows: raw materials are weighed; the weighed raw materials are placed in a stirring machine to carry out stirring and mixing in advance; an addition agent is added in the stirring machine to carry out full stirring; a brick die is prepared, and stirred raw materials are cast in the brick die; initial set and forming are carried out; stripping is carried out; a water-proofing agent is sprinkled on a stripped brick; and natural curing is carried out. Moreover, the obtained brick has light dead weight, low density, high strength, low water absorption rate and excellent sound insulation performance and heat-shielding performance.

The invention relates to the technical field of tunnel excavation, in particular to a freezing construction method and a freezing system of a connected aisle. The method comprises the following stepsthat a plurality of freezing holes, a plurality of temperature measuring holes and a plurality of pressure relief holes are arranged on two sides of the contacted aisle; a freezing station is arrangedin the tunnel at one side of the contacted aisle, and multiple rows of freezing and discharging pipes are laid on the contacted aisle opposite to the freezing station along the peripheral freezing wall of the aisle; the freezing system is arranged at the freezing station, and the freezing system is debugged and operated; soil between the two sides of the tunnel is actively frozen, the frozen soiltemperature between the two sides of the tunnel is measured by using temperature measuring holes, the average temperature of a freezing wall is calculated, and when the average temperature reaches apreset value, the excavation condition of the contacted aisle is judged to be met; during the excavation period, maintenance freezing is carried out, and the frozen data is monitored and maintained. According to the freezing construction method and the freezing system, a secondary drilling process is adopted in a drilling stage, and the situation that a large amount of mud and water are dischargedwhen a duct piece is drilled in a penetrating mode is prevented; in the freezing process, the brine water temperature change of each group of freezing devices is detected and analyzed, and the construction safety of the contacted aisle is guaranteed.

The invention discloses an agricultural small irrigation device. The device includes a baseplate device and an irrigation device body; a blending box is fixedly arranged at the center of the upper endsurface of a baseplate, a pesticide adding port is formed in the left side of the top of the blending box, and a water inlet pipe is arranged at the right side of the top of the blending box; a motoris fixedly arranged at the center of the top of the blending box and electrically connected with a control device; a temperature adjuster is fixedly arranged at the right side of an inner cavity of the blending box and electrically connected with the control device; rows of sprayers are horizontally arranged below the baseplate and connected with the blending box through water outlet pipes, and sprayer heads are evenly arranged at the surfaces of each row of sprayers; a water tank is fixedly arranged at the right side of the upper end surface of the baseplate, and a water pump is arranged above the water tank and connected with the water inlet pipe; a floodlight is fixedly arranged at the right side of the water tank and electrically connected with the control device. By using the deviceto conduct sprinkling irrigation or trickle irrigation on crops, water is saved, resource waste is avoided, and the device is simple in structure, convenient to use and conducive to popularization.

The invention provides a dredging control system. The dredging control system comprises a floating platform, a mud conveying pipeline, a control computer room, a suction type mud suction pump, a reamer type mud cutting and sucking head, a sediment conveying pump, a measuring platform and a monitoring device. The suction type mud suction pump is arranged on the floating platform and is controlled by the control computer room to suck mud water; the reamer type mud cutting and sucking head is arranged on the floating platform, is controlled by the control computer room and is connected to the suction type mud suction pump to stir compacted bottom mud into the mud water, and then the mud water are sucked; the sediment conveying pump is arranged on the floating platform, is controlled by the control computer room and enables the mud water sucked by the suction type mud suction pump to be guided into the mud conveying pipeline; the measuring platform is provided with a storage cylinder and a containing space defined by the storage cylinder and used for allowing the mud water to be connected to the mud conveying pipeline in a communication mode; and the monitoring device is used for measuring the mud water, carrying out datamation processing and outputting sediment measurement data of the mud water according to measurement results. Thus, according to the dredging control system, the mud in a reservoir can be automatically and continuously pumped, and digital monitoring can be achieved.

The invention discloses a livestock breeding shed. The livestock breeding shed comprises a shed body and a shed roof. A fermenting bed is arranged in the shed body and comprises a feeding area, rest areas and movement areas; the feeding area is located in the middle of the fermenting bed, the rest areas are arranged between the movement areas and the feeding area, the ground of the rest areas and the ground of the movement areas are both paved with saw powder and rice hulls, and the rest areas and the movement areas are divided by separating walls. The shed roof comprises fixed roof bodies, movable roof bodies, swinging plates, roof supporting rods and stretchable driving assemblies and a base; the movable roof bodies are installed inside the upper ends of the fixed roof bodies in a sliding mode, the stretchable driving assemblies for driving the movable roof bodies to slide are arranged on the fixed roof bodies, and the swinging plates are hinged to the lower ends of the movable roof bodies; roller shutters are arranged on the four side faces of the shed body, and roller shutter driving assemblies for driving roller shutter shafts to be lifted are arranged on the shed body. As the fermenting bed is arranged, excrement of livestock can be prevented from generating peculiar smells, the influences of rain and snow can be avoided, and sunshine can irradiate the fermenting bed.

A locking assembly for a motor vehicle of a saddle riding type includes, a reverse lock disposed in a transmission of the vehicle for preventing a shift change of the transmission into reverse when the vehicle is traveling forward, and a lock release mechanism having an actuator, wherein the lock release mechanism is disposed in an opening in a front fender of the vehicle, such that the actuator projects above the opening. Further the locking assembly includes a cable operatively connecting the lock release mechanism with the reverse lock, such that actuation of the actuator causes the reverse lock to be released, a main body of the lock release mechanism housed beneath the opening on an underside of the fender for covering the lock release mechanism, and a cover body disposed on the fender, such that sides of the actuator and the opening are covered.

A handlebar shock absorbing device includes a sleeve in which a tube is co-rotatably inserted. A rod is inserted into the tube. A first spring is axially received in the sleeve and contacts the tube. A second spring is located in the tube and located between the rod and a cap on top of the tube. The first and second springs absorb shocks transferred to the handlebar.

The invention belongs to the field of drilling fluid for oil field drilling, in particular to a high-lubrication foam drilling fluid and a preparation method thereof. The high-lubricating microfoam drilling fluid is composed of base slurry, lubricant and additives; the raw materials of the base slurry are proportioned in parts by weight as follows: 8-12 parts of bentonite, 0.2-0.3 parts of alkali, 100-140 parts of water Described additive, its raw material proportioning by weight is as follows: 5-10 parts of tackifier, 1-5 parts of aluminum oxide, 1-5 parts of polyquaternium sodium, 10-15 parts of sulfonate, carboxymethyl 2-6 parts of base cellulose, 0.5-1 part of nano-titanium chloride, 0.5-1 part of viscosity reducer, 0.1-0.5 part of sodium lauryl sulfate; the lubricant is aliphatic succinic acid, and the consumption is by weight The number of servings is counted as 5-10 servings. The cost of raw materials is low, the source is wide, and there is no pollution to the environment. It is an environmentally friendly material, has excellent anti-pollution performance, and has the advantages of safe use and great application potential.

The invention discloses a parallel channel membrane and a parallel channel membrane assembly. The parallel channel membrane is formed by arranging a plurality of cylindrical channels parallelly alongthe same plane, wherein the plurality of cylindrical channels are wrapped with a separation layer outer wall. The parallel channel membrane assembly is formed by arranging a plurality of parallel channel membranes parallelly in a flow channel direction of the membranes, and planes where the parallel channel membranes are arranged also keep parallel arrangement, a casing is arranged outside the parallel channel membranes, and pouring is performed on two ends of the casing. According to the membrane products, sludge deposit between membrane filaments can be avoided effectively, and antifouling property of the membrane products is improved.

The invention discloses a snow clearer. The snow clearer comprises a snow shoveling cavity, a snow smelting chamber and a second water storage chamber, a snow shovel is arranged at the bottom of one end of the snow shoveling cavity, and two sides of one end of the snow shoveling cavity are connected with the two ends of a rolling axle in a penetrating and inserting mode. A plurality of snow rolling wheels are arranged on the surface of the rolling axle, three curved blades are arranged on the edge side of each snow rolling wheel, a plurality of heating bars are arranged in a snow smelting plate, a motor is arranged on the end of the snow smelting chamber, an output shaft of the motor is provided with a second gear, and the second gear is connected with a first gear through a chain in a hinged mode. The snow clearer is provided with the snow shovel combined with the curved blades, the snow is shaved and rolled into the snow clearer to avoid the trouble that the snow is stepped too hardto clean up conveniently; the heating bars are arranged in the snow clearer to melt snow into water for storage to prevent the snow from melting and causing water accumulation and road mud; and meanwhile, the snow melted into water can greatly reduce the volume of snow, the trouble caused by moving snow back and forth is avoided, the use is convenient, and working efficiency is high.

The invention discloses a shield end soil body ultra-deep reinforcement construction method under water-rich silty-fine sand geology. The shield end soil body ultra-deep reinforcement construction method comprises the following steps of pile forming test, preparation before construction, in-place of a stirring machine, slurry preparation, drilling grouting, lifting stirring, repeated up-down stirring and acceptance check. According to the shield end soil body ultra-deep reinforcement construction method under the water-rich silty-fine sand geology, soil body reinforcement is conducted throughultra-deep three-axis stirring piles, the ultra-deep three-axis stirring piles are additionally arranged on the outer sides of reinforcing bodies to serve as waterproof curtains and are used for preventing underground water and sand outside a foundation pit from gushing into an end well in the station entering and exiting period of a shield tunneling machine, the phenomena of water gushing and sand gushing which are most likely to happen in the in-out hole process of the shield tunneling machine are greatly reduced, and therefore the risk of shield tunneling in-out hole in a full-section siltlayer is eliminated.

The invention provides a rotary tillage automatic adjusting method of an automatic rotary cultivator. The rotary tillage automatic adjusting method of the automatic rotary cultivator comprises the following steps: (A) setting a proper pressure set value; (B) monitoring a monitored pressure value; (C) comparing the monitored pressure value with the proper pressure set value; and (D) automatically adjusting and controlling lifting of a rotary tillage device.

The invention discloses a spraying dust falling and cooling device for a building construction working face. The spraying dust falling and cooling device comprises a water conveying device, and a clamping device is arranged on the water conveying device. Through cooperation of the water conveying device, a driving device and a cutoff device, a displacement block can drive spraying heads to reciprocate left and right, the area covered by water mist sprayed by one single spraying head is increased, the water mist is promoted to be sprayed evenly, and the problem that the ground is muddy due to the fact that the spraying heads spray the water mist to one area for a long time is solved; through cooperation of an overturning device, a transmission device and a traction device, the inclination angles of the spraying heads can be automatically changed, so that the area covered by water mist is changed, the water mist is further sprayed evenly and more evenly, and the problem that the ground is muddy due to the fact that the spraying head sprays the water mist to one area for a long time is further solved; and the practicability of the spraying, dust-falling and cooling device for the building construction working face is improved.

The invention belongs to the technical field of water treatment, and discloses a low-carbon environment-friendly unfired ceramsite filter material as well as a preparation method and application thereof. The method comprises the following steps: firstly, diluting high-purity acid with water, and mixing and stirring with a silicate or aluminosilicate material to obtain an acid excitation material; then adding water, siliceous powder and expanded perlite into the acid excitation material, and uniformly mixing and stirring to prepare a matrix; the ceramsite filter material finished product is finally formed through foaming pore-forming, extrusion forming, normal-pressure steam curing, high-pressure steam curing and surface modification, and the filter material is excellent in comprehensive performance and has the advantages of being good in grain shape, good in acid resistance and high in hardness. According to the invention, the traditional calcining process at 1000 DEG C or above is not needed, the ceramsite filter material is prepared through a hydrothermal synthesis process at 90-200 DEG C, the production energy consumption is low, the resources are saved, the prepared ceramsite filter material is spherical, the accumulation porosity of the filter material is high, backwashing is facilitated, and the filter material is prevented from depositing mud.

The invention relates to the technical field of cast-in-place piles, and discloses a method for forming a cast-in-place pile in a karst development area. The method comprises the following construction steps that (1) a full-slewing drilling machine is used for driving a sleeve to rotate and press downwards, and a pile hole is formed in the sleeve;(2) a slag removal barrel is put into the sleeve for primary hole cleaning, and sediment at the bottom of the pile hole falls into a containing cavity of the slag removal barrel from top to bottom;(3) a reinforcement cage is arranged below the interior of the pile hole, the periphery of the reinforcement cage is wrapped with a metal outer wire net, and the periphery of the metal outer wire net is wrapped with a dense-mesh nylon net;(4) a slag removing head is put into the pile hole for secondary hole cleaning, and the sediment is driven to upwards surge to be in a suspended state;(5) concrete is poured into the pile hole through a pouring pipe, and meanwhile the sleeve is upwards and longitudinally pulled out; the method for forming the cast-in-place pile in the karst development area has the following advantages that (1) drilling efficiency is high;(2) a problem of diffusion and loss of concrete towards a karst cave after the sleeve is pulled out is solved;(3) loss of the concrete is effectively controlled; and (4) on-site civilized construction condition is good.

The invention discloses an efficient dynamic aeration device, and belongs to the technical field of environmental protection equipment. The efficient dynamic aeration device is characterized in that: an aeration branch pipe is communicated with a plurality of aerators; a tooth form baffle is arranged in the upper space of an air distribution plate of each aerator; floatable division small balls are arranged on the tooth form baffle in each aerator. The efficient dynamic aeration device has the following benefits: the service area is large; the oxygenation capacity is good; the oxygen utilization rate is high; the device is less prone to block; after the device is used, small ball bodies float to block a grid, and sludge cannot enter an aeration barrel body; the device is uniform in aeration, fine in bubbles, high in oxygen utilization rate and dynamic efficiency, long in service life and semi-permanently useable; the system is convenient to maintain and repair; the efficient dynamic aeration device is high in adaptability and wide in application range; the aerators are low in height, and generally, the mounting height from the tank bottom to the top plane of the aerators is not larger than 400 millimeters, so that tank volume is effectively saved, oxygenation at the tank bottom is guaranteed, and mud accumulation at the bottom is avoided.

The invention relates to the technical field of rice seedling raising, and specifically provides a method for raising rice seedlings by micro-sprinkler irrigation under a grape trellis. The method is characterized by comprising the following steps: a, soil preparation in a vineyard; b, installation of a micro-sprinkler irrigation system; c, soaking of seeds and germination acceleration; d, tray placement and sowing; and e, management in a seedling stage: carrying out spray irrigation according to the situation of rice seedlings. With the method for raising the rice seedlings by micro-sprinkler irrigation under the grape trellis provided by the invention, enclosing furrows and rice-seedling furrows are formed in the ground below a traditional grape trellis; rice-seedling trays with rice-seedling plates are placed at two sides of the rice-seedling furrows; irrigation water is introduced to the interiors of hair canals through top-mounted branch pipes on the grape trellis by utilizing a water pump and a water delivery and distribution pipe network; spray irrigation for the bottom rice-seedling plates is realized through suspension type rotating spray heads; thus, the method provided by the invention greatly improves the utilization rate of a land, enhances economy, has high rice seedling raising efficiency and less waste, and significantly facilitates popularization.

The invention provides an efficient silicon removal device, and solves the problems that the chemical utilization rate of an existing device is low and sludge accumulation at the bottoms of a coagulation flocculation tank and a central guide cylinder is serious and influences the normal operation of a system. The device comprises a coagulation flocculation tank, a central guide cylinder, a centralguide cylinder adjacent region, a sedimentation tank, a T-shaped inclined plate, a backwashing unit and an overflow pipe, wherein the T-shaped inclined plate comprises a transverse plate and a connecting rod with one end connected to the middle part of the transverse plate; the other end of the connecting rod is arranged on a stirring shaft of a stirrer in the coagulation flocculation tank, and an included angle of 45-75 degrees is formed between the other end of the connecting rod and the stirring shaft; the backwashing unit comprises a water pump, a fan and a perforated aeration pipe; the perforated aeration pipe is arranged at the bottom of the coagulation flocculation tank and in the central guide cylinder adjacent region; both the water pump and the fan are connected with the perforated aeration pipe through communication pipelines, and realize water washing and wind washing of the coagulation flocculation tank and the central guide cylinder adjacent region through the perforatedaeration pipe; a first through hole is formed in the upper part of the coagulation flocculation tank; and a second through hole is formed in the side wall of the central guide cylinder adjacent region.

The invention provides a bicycle water bottle cage. The bicycle water bottle cage comprises a connecting part; the frame body is provided with a back plate part and a mud blocking part; wherein the back plate part is connected with the connecting part, and the mud blocking part is connected with the back plate part to define an accommodating space, so that a kettle can be conveniently placed in the accommodating space.