33results about How to "Improve sand cleaning efficiency" patented technology

The invention relates to a vehicle coupler inner-cavity steel shot cleaner for railway vehicles. The cleaner comprises a frame, a main transmission case seat arranged on the frame, at least one auxiliary transmission case seat and at least one vehicle coupler turning frame, wherein the main transmission case seat is provided with a main transmission case, a rolling bearing provided with a main transmission shaft is arranged in the main transmission case, and both ends of the main transmission shaft are connected with a reducing motor and the vehicle coupler turning frame respectively; the auxiliary transmission case seat is provided with an auxiliary transmission case, a rolling bearing provided with an auxiliary transmission shaft is arranged in the auxiliary transmission case, and the auxiliary transmission shaft is connected with the vehicle coupler turning frame; and each vehicle coupler turning frame is provided with a bolt seat which is provided with a bolt hole and a stop block, and a vehicle coupler inner cavity to be cleaned is inserted into the bolt hole to be fixed on the vehicle coupler turning frame. The vehicle coupler inner-cavity steel shot cleaner has high steel shot cleaning efficiency, so the excessive occupation of running trains is avoided; meanwhile, various working positions can be freely stopped and self-locked at any required angle, so that operators can perform steel shot cleaning operation conveniently.

The invention discloses a bucket wheel type desanding device for maintaining train tracks, which belongs to the technical field of railway track maintenance equipment, and includes a sand collection and desilting device for cleaning the sand accumulated inside the track and a sand pusher for cleaning the sand accumulated outside the track The sand collection and discharge device can be connected with the walking equipment that walks along the track. The sand collection and discharge device is set between the two tracks. The sand collection and discharge device is equipped with a guide wheel that can run along the track. Two adjacent The sand pushing plate provided on the outer side of the track is arranged on the outer side of the guide wheel. The invention walks along the track driven by the walking equipment, and the guide wheel guides the sand collection and discharge device; the sand accumulation on the inside of the track is cleaned by the sand collection and discharge device, and the sand on the outside of the track is pushed to the two sides by the sand pusher. The side push ensures the safety of driving and avoids the occurrence of railway outage accidents caused by sand accumulation on both sides of the track; at the same time, the invention has a high degree of mechanization, which greatly reduces the labor intensity of the staff and improves the efficiency of sand cleaning.

The invention provides a vibration type casting sand cleaning machine and relates to the field of casting equipment. The vibration type casting sand cleaning machine comprises a rack and a casting platform, wherein a push plate is arranged at one side of the casting platform; the upper end face of the push plate is connected with a first rack; a storage rack is arranged at the other side of the casting platform; the storage rack comprises a first vertical plate and a second vertical plate; a groove is connected between the first vertical plate and the second vertical plate; the first vertical plate is in sliding connection with a first bracket; the second vertical plate is in sliding connection with a second bracket; pins are arranged between the first vertical plate and the first bracket, and between the second vertical plate and the second bracket; the pins are fixedly connected with a connecting rod parallel to the first bracket, and a wedge block is arranged above the connecting rod; a second rack is connected with one side, close to the casting platform, of the first bracket; a third rack is connected with one side, close to the casting platform, of the second bracket; the second rack is engaged with a first gear; the third rack is engaged with a second gear; the first gear and the second gear are coaxially connected with a third gear and a ratchet wheel; and the ratchet wheel is engaged with a pawl. Compared with the prior art, the vibration type casting sand cleaning machine has relatively high casting sand cleaning efficiency.

The invention discloses rotating spray sand cleaning method, which is used for cleaning sand at the bottom of a well. The method comprises the following steps of: A, connecting a shaft sand cleaning pipe column, inserting into the well, and detecting the depth of a sand surface by using the shaft sand cleaning pipe column; B, lifting the shaft sand cleaning pipe column by 1-3 meters; C, connecting a pump to the top of the shaft sand cleaning pipe column and pumping liquid for impacting settled sand at the bottom of the well; D, making the impacted sand flow upwards in an oil thimble along with fluid, settle downwards and settle into a slotted casing; and E, putting the shaft sand cleaning pipe column down, continuously washing sand to a designed construction well depth position, and pulling the shaft sand cleaning pipe column out of the well to finish rotating spray sand cleaning operation. Due to the adoption of the method, settled sand, metal smashed blocks, stained metal blocks and corrosion inhibitor adhesives at the bottom of the well can be cleaned, a production layer is exposed, and high sand cleaning efficiency is achieved.

The invention discloses a desanding technology of an oilfield flown back fracturing fluid. The technology is designed to realize the closed continuous desanding, multilevel control and non-grounding desanding of the flown back fracturing fluid. A waste liquid is processed by a cyclone desanding device, the processed waste liquid enters a pressure relief degassing device for gas-liquid separation and filtering sedimentation, the obtained waste liquid is directly pumped into a filter-order filtering device through a first-order water pump, the filtered waste liquid is settled in a sewage pot, the settled filter waste is directly pumped into a second-order filtering device through a second-order water pump and is processed, and the finally obtained product is introduced into a purified water tank. The desanding technology has the advantages of reliable design, simple operation, no need of over-current, and substantial continuous desanding performance, and an apparatus for realizing the technology has the advantages of strong impact resistance, closed processing process, large processing capacity, and high desanding efficiency.

The invention relates to a bypass valve capable of repeating switch, including a valve body and a valve core capable of sliding in the valve body. The valve body is formed through a valve core to form an axial through main flow passage, where the valve body is provided with a bypass passage and an inner ring groove in the axial direction of the valve body. The bypass passage is formed when the bypass passage is communicated with the main flow passage through the connection passage, and the through flow passage is formed when the inner ring groove is communicated with the main flow passage through the connection passage. The valve body is also provided with a reset mechanism which is connected to the valve body and that positions the valve body at the time of opening the bypass flow passage and through the flow passage. The bypass valve can greatly improve the stability of the bypass operation and the straight-through operation, and realize the cycle switching between the multi-pass operation and the straight-through operation. It also has the advantages of fast plugging and high sand removal efficiency, and can greatly improve the drilling efficiency.

The invention relates to the field of sand mold 3D printing sand removal, in particular to a 3D printing sand removal apparatus. The 3D printing sand removal apparatus comprises a working platform, a jacking device, a sand box, a work box, a sand separation plate and a sand receiving tank, wherein the working platform comprises a control device which controls the sand box, the work box and the sand separation plate to carry out positioning movement, a roller bed conveying device and a grid plate, the jacking device comprises a lifting plate, a base, side plates c and a jacking machine located on the base, the jacking device is located below the working platform, the sand box is located on the roller bed conveying device of the working platform, the work box is located above the sand box, the sand separation plate is arranged above the sand box and below the work box, and the sand receiving tank is located below the working platform. With the 3D printing sand removal apparatus, the problem that the efficiency of traditional waste sand processing is low is solved, the efficiency of sand removal is improved, and the automation and the intelligence of the whole process of 3D printing are achieved.

The invention discloses a bucket wheel type rail sand removing vehicle, and belongs to the technical field of railway track maintenance equipment. The sand removing vehicle comprises a sand collectingand discharging device, a sand pushing plate arranged on the outer side of a rail and a walking device capable of walking along the rail; the sand collecting and discharging device and the sand pushing plate are both connected with the walking device, the sand collecting and discharging device is arranged between the two rails, the sand collecting and discharging device is arranged in front of the walking device, and the sand pushing plate is arranged on the outer sides of the rails and is close to the outer side faces of the rails. The sand removing vehicle travels along the rails by means of the walking device, accumulated sand on the inner side of the rails is cleaned by means of the sand collecting and discharging device, the sand on the outer side of the rails is pushed to two sidesthrough the sand pushing plate, so traveling safety is ensured, and railway shutdown accidents caused by sand accumulation on the two sides of the rails are avoided; meanwhile, the mechanization degree is high, the labor intensity of workers is greatly reduced, and the sand cleaning work efficiency is improved.

The invention discloses a hopper sand-collecting type railway track desanding vehicle, which belongs to the technical field of railway track maintenance equipment and includes a power device, a running device and a sand cleaning device arranged on the bottom frame. The walking wheel; the sand cleaning device includes a sand collection mechanism for removing sand accumulated on the inside and outside of the track and a sand discharge mechanism for discharging the sand cleaned by the sand collection mechanism to the outside of the train frame. The sand collection mechanism is located at the front end of the chassis ; Walking device, sand collection mechanism and sand discharge mechanism are all driven by the power unit. Drive the walking device to walk along the track through the power device. During the walking process, the sand collecting mechanism is used to remove the sand accumulated inside and outside the track and the sand is transported to the sand discharge mechanism. The sand is discharged to the outside of the track through the sand discharge mechanism to ensure driving safety and avoid track The accumulation of sand on both sides leads to the occurrence of railway outage accidents; at the same time, the invention has a high degree of automation, which greatly reduces the labor intensity of the staff and improves the efficiency of sand removal.