36results about How to "Reduce the amount of maintenance work" patented technology

The invention discloses a pressure relief and monitoring method for continuous large deformation of coal sides in deep roadways. It is mainly aimed at continuous large deformation of the two sides of deep roadways and damage to the support system, which has to be continuously expanded and repaired to ensure roadway functions and maintenance costs. A substantial increase. The method of the present invention is to arrange large-scale pressure relief holes parallel to the axial direction of the roadway in the deep area of ​​the two sides of the roadway, so that the deformation energy of the surrounding rock can be partially released and the peak value of the supporting stress of the two sides can be greatly transferred to the deep part. The space movement of the roadway provides a large compensation space; the pressure relief holes are arranged on both sides of the roadway to drill holes in different numbers and methods, and holes with different diameters are realized by means of radial hydraulic jet or mechanical reaming. The force and deformation monitoring system is installed on the two sides of the roadway. When the force and deformation increase, that is, the hole group is closed, the pressure relief hole group is implemented again to realize the long-term effective monitoring and control of the surrounding rock in the deep coal roadway, which greatly reduces the roadway maintenance. Work volume and cost.

The invention discloses a simulation system used for replacing a GE remote control device. The simulation system used for replacing the GE remote control device comprises a novel main remote controller, a human-computer interface module, a network conversion advanced data link controller and an input and output module for acquisition, wherein the input and output module for acquisition is connected with the network conversion advanced data link controller through an HDLC bus, the network conversion advanced data link controller is connected with the novel main remote controller through an Ethernet cable, and the novel main remote controller is connected with the human-computer interface module through an Ethernet cable. According to the simulation system used for replacing the GE remote control device, the network conversion advanced data link controller is additionally arranged in the system, an original GE remote control device module is simulated in the novel main remote controller, in this way, a plug-and-play replacement system is obtained, the field debugging workload and the maintenance workload are relieved, the construction cost, the installation space and the number of dispatching channel are all reduced, and the safety of network data is improved; the number of cooperation manufacturers is reduced, debugging difficulty is lowered, and installation time is shortened.

The invention relates to a construction method for lightning protection and grounding that can be continuously maintained without digging trenches twice. The construction method includes a new construction method for a lightning protection grounding field and a maintenance construction method for a traditional lightning protection grounding field. The newly built lightning protection grounding field The construction method includes the construction design of the lightning protection grounding horizontal grounding body and the lightning protection grounding vertical grounding body construction design, and the traditional lightning protection grounding field maintenance construction method includes the horizontal grounding body maintenance construction design and the vertical grounding body maintenance construction design. The modification and innovation in the present invention, combined with the high-pressure perfusion pump to realize the high-pressure perfusion permeation mode, makes the grounding system have good maintainability, reduces maintenance cost, improves maintenance effect, and shortens the maintenance period.

The invention discloses a method for mining coalbed methane through regional underground high-pressure hydraulic drilling and pressure relief, which comprises the following steps: putting a jet device, a filtering device and a drill stem connected with the filtering device into a drill hole (4); starting a high-pressure pump; carrying out rotating impact drilling on the wall of the drill hole (4) of a coalbed (1) by using the jet device so as to form a pressure relief space; and after the drilling operation meets the design requirements, carrying out coalbed methane drainage operation on the coalbed (1) subjected to drilling according to the conventional method, and then, emitting the obtained coalbed methane by a coalbed drainage pipe (7). A coal-water mixture (8) produced in the process of drilling operation (13) is fed into a swirler (10) so as to realize the separation of coal and water, and the obtained liquid supernatant (11) is directly recycled in the drilling operation (13). By using the method disclosed by the invention, the number of drill holes (3) can be greatly reduced, the pressure relief space (6) of the protruded coalbed (1) can be expanded, and the coalbed methane drainage efficiency can be improved; and meanwhile, the injection of high pressure water can effectively suppress dust, thereby reducing the risk of the protruded coalbed and improving the underground operating environment.

The invention discloses a T-shaped roadway layout suitable for intelligent unmanned working faces. Each roadway in the unmanned working face in the panel area includes a level road and a cut-out, and one end of the level road is connected vertically to the cut-out. , the cut eye is divided into two symmetrical parts by the level roadway, forming a T-shaped roadway, and the other end of the level roadway is connected with the panel transport alley and the panel return air alley respectively. The T-shaped roadway layout of the present invention is suitable for intelligent unmanned working face mining in near-horizontal coal seams and low gas mines. The level roadway integrates the functions of the section transportation level way and the section return air wayway of the traditional U-shaped roadway, which greatly reduces the amount of section roadway excavation and maintenance work, and improves the safety and management efficiency of the unmanned working face.

The invention discloses a regional gas underground high-pressure jet hole digging, pressure relief and outburst prevention method, which comprises the following steps of: arranging a plurality of drilling fields (3) in a bottom board rock gangway (2) of a coal bed (1), and arranging one or more drilling hole positions; after a drilled hole (4) reaches the design depth of the coal bed (1), withdrawing drilling, and putting a jet device, a filter device and a connected drill rod into the drilled hole (4); starting a high-pressure water pump, rotationally cutting the hole wall of the drilled hole (4) in the coal bed (1) by the jet device, performing radial continuous hole expanding and digging on the drilled hole (4) when the drill rod moves along the axial direction of the drilled hole (4) so as to form a pressure relief space, and collecting coal dust carried out by jet water flow; after the hole is dug to a certain depth, adjusting the position of the jet device by changing the numberof the drill rod to continuously dig the hole; and performing gas drainage on the hole dug coal bed (1) according to a conventional method. The method reduces the gas pressure of the coal bed and effectively reduces the outburst risk of the coal bed.

The invention discloses a maintenance method for the uneven settlement of embedded track steel channel type roadbed, comprising: step 1: preparation work; step 2: cleaning road surface pavement; step 3: chiseling away the concrete ballast bed on both sides of the steel channel; Step 4: Fine adjustment of the steel channel: Cut the ballast bed reinforcement connected to the steel channel, use the steel channel connection device, the reaction frame and the jack to lift the steel channel; place the height-adjusting pad on the bottom of the steel channel and adjust the tooling to complete Steel channel geometry adjustment; Step 5: Fixing the steel channel: planting steel bars at a distance in the ballast bed on both sides of the steel channel, and fixing the implanted steel bars with the steel channel; Step 6: Pouring filling materials; Step 7: Restoring Paving. The present invention realizes rail precision restoration by finely adjusting the steel groove, has large adjustment amount and low operation difficulty, minimizes damage to the ballast bed, greatly reduces maintenance engineering quantity, and shortens maintenance period. This method is also applicable to the reconstruction of existing lines with embedded tracks.

The invention discloses an electric power telemechanical apparatus RTU and a method for realizing the automatic voltage control of the power plant. The inventive electric power telemechanical apparatus includes a central control module, a remote signalling module, a telemetering module, a remote regulating module and a remote control module, wherein the central control module includes a communication submodule, a data bank submodule and an automatic voltage control submodule, which generates the control signal for adjusting the wattless production output of the generating set, based on the data stored in the data bank submodule, and transmits the control signals to the remote regulating module or the remote control module through the communication submodule, then transmits to the generating set which participates in the voltage control through the remote regulating module or the remote control module, realizes the automatic voltage control. The invention gives full play to the function of the electric power telemechanical apparatus, reduces the amount of the situ hardware units, increases the operational precision of the data in the AVC adjusting process.

The disclosure provides a double-tower double-circulation desulfurization system and method that cancels the accident slurry system, including: a primary absorption tower and a secondary absorption tower, the primary absorption tower is connected to the gypsum discharge pump of the primary tower through the first pipeline, and the secondary absorption tower The first-stage absorption tower is connected to the second-stage gypsum discharge pump through the second pipeline; the first-stage tower gypsum discharge pump and the second-stage gypsum discharge pump are both connected to the desulfurization system through the third pipeline; The first-level absorption tower is connected to the second-level absorption tower; the design of the accident slurry system is canceled, which effectively avoids the extension of the construction period caused by the construction of a separate configuration of the accident slurry system, and reduces the increase in construction on site while ensuring the construction period and project quality , making the regional planning of wet desulfurization more standardized, and the fire maintenance road smoother; reducing the corrosion, scaling, and maintenance workload in the desulfurization system, reducing the maintenance workload of equipment, and reducing the energy consumption of the desulfurization system.

The invention discloses an online pouring molding method for the burner nozzle of a heating furnace. Firstly, the nozzle mold on the burner brick is made, and the nozzle mold is set at the position of the burner on the furnace wall during maintenance, and then the burner nozzle of the regenerator is installed. The damaged furnace wall and the surrounding area are poured with corundum mullite casting material, and at the same time, the closing part of the top and the tail is closed with high alumina bricks, and the partition plate in the heat storage box is covered with formwork. Make repairs. Finally, after the poured slurry is solidified and meets the strength standard requirements, the nozzle mold on the burner brick is removed, and the burner nozzle is formed. In the case of damage to the burner of the heating furnace, based on the requirement that the nozzle of the burner brick remains unchanged, the present invention firstly makes a mold according to the size of the nozzle of the burner, and then repairs it by casting the nozzle with a refractory material. The burner repaired by the invention is not easy to deform and collapse, effectively prolongs the service life of the burner on the heating furnace, and further shortens the construction time and maintenance engineering amount.