212results about How to "Improve slag discharge efficiency" patented technology

The invention discloses a combined type double-shield tunneling machine which comprises a cutter, an anterior shield, a cab, a main driving device, an inside-and-outside stretching shield, a V-shaped arrangement main propelling system, a hinge system, a supporting shield, a boot supporting system, a tail shield, an auxiliary propelling system, a dual-mode deslagging system, an integration supporting system and the like. Four working modes including of the double shielding modes including the support boot and segmental lining mode and the support boot and anchor-plate timbering mode, the single shielding mode and the ERB mode can be achieved, and efficient tunneling, efficient deslagging and efficient timbering are achieved under the hard rock, sandy soil and soft soil geological conditions. The combined type double-shield tunneling machine has the outstanding advantages that one device can meet various complex-geology tunneling construction requirements, the geology applicability of the tunneling machine is greatly improved, the frequency of tunneling machine replacement in tunnel construction is decreased, and production efficiency is greatly improved.

The invention discloses a closed type helical hole-protecting drill and a using method thereof for drilling of a soft coal bed. The closed type helical hole-protecting drill comprises a closed type helical hole-protecting drill pipe and a helical slag-guiding drill bit, and the helical slag-guiding drill bit is mounted at the front end of the closed type helical hole-protecting drill pipe. The closed type helical hole-protecting drill is mainly applied to the drilling engineering of the soft and breaking coal rock layer. The using method includes mounting and connecting a drill, the closed type helical hole-protecting drill pipe, the helical slag-guiding drill bit and an orifice slag discharging device, starting the drill, breaking and drilling the coal bed by the helical slag-guiding drill bit, guiding drillings into the helical slag discharging space of the closed type helical hole-protecting drill pipe along slag-guiding helical grooves of the drill bit, and discharging the drillings out of the hole through friction of helical blades. The closed type helical hole-protecting drill is novel in design, and is provided with a hole protecting function via structural innovation of the helical blades, the drillings are discharged within in the protected space and prevented from being influenced by deformation and collapse of drilled holes, and the defect that a conventional casing drill is high in drilling resistance, low in slag discharging efficiency and the like is overcome.

The invention relates to a rotary fire grate which comprises a fixed shaft, a main shaft sleeve, a first forward driven fire grate, a second forward driven fire grate and a forward driving fire grate connected with a driving mechanism. The forward driving fire grate, the first forward driven fire grate and the second forward driven fire grate have slag removing holes. The forward driving fire grate, the first forward driven fire grate and the second forward driven fire grate are fixedly connected with the main shaft sleeve which is movably sleeved with the fixed shaft. The rotary fire grate further comprises a reverse driving fire grate. The forward driving fire grate, the reverse driving fire grate, the first forward driven fire grate and the second forward driven fire grate are arranged sequentially from bottom to top and distances are reserved between adjacent fire grates. The forward driving fire grate is connected with the driving mechanism, the reverse driving fire grate is movably sleeved with the main shaft sleeve, and the reverse driving fire grate has a slag removing hole. The rotary fire grate is good in slag breaking effect and smooth in slag discharge.

The invention discloses a vertical shaft TBM (Tunnel Boring Machine) device. The front part of a girder of the vertical shaft TBM device is provided with a cutter head driving system; rotation of the cutter head driving system drives a cutter head to rotate; the cutter head adopts a cavity-type hemi-ellipsoidal structure; a stirring device is arranged in a cavity of the cutter head; a cutter is arranged on the outer surface of the cutter head; a feed inlet is reserved on the cutter head; a slurry input pipeline and a slagging pipeline are arranged in the girder; the front end of the slurry input pipeline extends to the front end face of the cutter head; the rear end part of the cutter head is provided with the slagging pipeline communicated with the cavity of the cutter head; the rear end of the slagging pipeline extends out of the girder; both sides of the girder are provided with propelling systems; each propelling system comprises a thrust oil cylinder; one end of each thrust oil cylinder is hinged to the girder and the other end of the thrust oil cylinder extends backwards and is hinged with a supporting shoe; a telescopic oil cylinder for pressing two supporting shoes on the wall of a vertical shaft is arranged between the two supporting shoes. According to the invention, full-face integral forming of the vertical shaft can be implemented and the tunneling speed of the vertical shaft is greatly improved.

The invention discloses a slurry balance type tube push bench and a circulative slurry deslagging method utilizing the same. The internal cavity of the slurry balance type tube push bench is internally provided with at least one driving system and at least one circulative deslagging system used for discharging sludge in a slurry cavity, wherein the output end of the driving system is connected with a cutter head by penetrating though a partition plate; and in the process of performing circulative slurry deslagging by virtue of the slurry balance type tube push bench, the slurry is discharged into the slurry cavity by virtue of the at least one circulative deslagging system; the soil and slurry in the slurry cavity are fully mixed to form sludge, the sludge in the slurry cavity is discharged into a slurry pool by virtue of at least one circulative deslagging system, and the discharged sludge precipitates in the slurry pool so as to form slurry. The slurry balance type tube push bench and a circulative slurry deslagging method utilizing the slurry balance type tube push bench can be used for improving the deslagging efficiency, are simple, convenient and reliable in construction, are safe and convenient in operation, and are used in the field of non-excavation engineering construction.

The invention relates to a smelting water receiving and residue filtering tank. The smelting water receiving and residue filtering tank comprises a tank body, wherein the tank body is made of a refractory material and comprises a first branch tank and a second branch tank; a partition plate which can move in the vertical direction is arranged between the first branch tank and the second branch tank; a water inlet is formed in an inner side face of a side part of the first branch tank, and an opening of the water inlet faces upwards; a water receiving opening, corresponding to the water inlet, is formed in an outer side face of the side part of the first branch tank; the water receiving opening is communicated with the water inlet; a residue discharging opening is formed in one side part adjacent to the side part of the water receiving opening; at least one fan is arranged at the upper end of the other side part adjacent to the side part of the water receiving opening; a water drainage opening is formed in a side part of the second branch tank. Compared with the prior art, the smelting water receiving and residue filtering tank has the advantages that dross floats quickly, the residue removing efficiency is high and continuous operation can be realized.

The invention discloses a device and a method for removing hole bottom sediment of a pore-forming pouring pile. The device comprises an air supply mechanism, a liquid supply mechanism, a hose, a sediment discharging pipe and an inclined pipe; the sediment discharging pipe comprises a vertical sediment discharging pipe part and a horizontal sediment discharging pipe part; the vertical sediment discharging pipe part is communicated with the air supply mechanism through the hose, and comprises an upper pipe, a middle pipe and a lower pipe; the middle pipe comprises an outer pipe and an inner pipe of which the central axes are overlapped; the upper pipe is connected with the outer pipe or the inner pipe through screw threads; the lower pipe is also connected with the outer pipe or the inner pipe through screw threads; the inclined pipe penetrates through the inner pipe and the outer pipe downwards; an air outlet of the air supply mechanism is communicated with the inner pipe through the hose and the inclined pipe in sequence. By adoption of the structure, the sediment removal efficiency is improved effectively, but energy consumption is not increased obviously.

The invention belongs to the technical field of underground tunneling engineering, particularly relates to a large-span underground space structure and a construction method thereof, and provides the underground tunneling space structure and the construction method thereof which have a small influence on social environments and effectively, so that the technical problem that construction difficulty of underground space structure engineering is large is effectively solved. The large-span underground space structure is mainly composed of an underground tunnel structure and underground pipe curtain structures, wherein the underground tunnel structure is mainly composed of a plurality of longitudinal going-ahead tunnels excavated by a shield tunneling machine or a tube push bench; the transverse underground pipe curtain structures which are each composed of a plurality of pipe bodies are arranged between the adjacent longitudinal going-ahead tunnels correspondingly, wherein the pipe bodies are arranged by adopting a linear or arched structure; and therefore, excavating and slag tapping efficiency of excavating equipment is greatly improved, the mechanized construction extent of underground engineering is greatly improved, construction efficiency is improved, and safety of underground engineering construction is ensured.

The invention relates to the technical field of rescue of a mine collapse roadway, and provides jacking pipe rescue equipment for the coal mine collapse roadway. A machine body and jacking pipes are movably arranged on a main jacking mechanism rail; the machine body comprises a cutterhead arranged at the front end of the machine body and a cutterhead driving device driving the cutterhead to rotate; the jacking pipes are in end-to-end butt joint one by one to form a jacking pipe group; the head end of the jacking pipe group is abutted against the tail end of the machine body; a material conveying rail is arranged outside the machine body, the plurality of jacking pipes and a main jacking mechanism; and the material conveying rail is arranged in a way of extending from the positions of the jacking pipes to the outside of the roadway, so that carbide slag cut by the cutterhead can be conveyed to a slag conveying vehicle through a scraper conveyor, and is transported out of the roadway through a slag conveying vehicle rail and the material conveying rail. The equipment can solve the problems of low slag discharging efficiency and the like. The invention also provides a jacking pipe rescue method for the coal mine collapse roadway.

The invention relates to a method for quickening construction of a multiple-arch tunnel. The method includes: firstly, pre-supporting a middle pilot tunnel; and secondly, excavating the middle pilot tunnel, constructing a left main tunnel, a right main tunnel, and a cover arch and a long pipe roof of the middle pilot tunnel, setting a widened segment allowing a loader to turn around in the middle of the middle pilot tunnel, and after the middle pilot tunnel is through, constructing a middle partition wall from an entrance of the middle pilot tunnel to an exit of the middle pilot tunnel. The method has the advantages that construction entering is assisted by advanced small pilot pipes so that entering construction period of the middle pilot tunnel is reduced; the section of the middle pilot tunnel is locally enlarged, the loader is used with a dumper for construction, and accordingly residue discharging efficiency is improved greatly; the construction method of the middle partition wall is modified, so that the main tunnels can be constructed in advance; and the middle partition wall and the main tunnels are constructed in parallel, time and space are more reasonable, and accordingly personnel idleness and machine idleness are avoided and construction speed is increased.

The invention provides a fluidized bed garbage incinerator which comprises a hearth, and the hearth is surrounded by a water wall to be of a sealed structure. A partition wall is arranged on the lower portion of the hearth and divides the lower space of the hearth into a residue discharging zone and a fluidizing zone. A garbage inlet is formed in the residue discharging zone, and an inclined stepping type air distributor is obliquely arranged at the bottom of the residue discharging zone; a residue discharging opening is formed in the lowest position of the inclined stepping type air distributor, and directional caps are arranged on the inclined stepping type air distributor, wherein the air outlets of the directional caps are towards the residue discharging opening. Objects with large grain sizes and density in the residue discharging zone move towards the residue discharging opening along the inclined stepping type air distributor through the gravity effect and the blowing effect of the directional caps and then are discharged through a residue discharging pipe. The problems that a traditional fluidized bed garbage incinerator is difficult in residue discharging and high in failure rate and needs to discharge residues frequently after being stopped are effectively solved, the availability, safety, stability and economical efficiency of the fluidized bed garbage incinerator are improved, and operation and maintenance cost is greatly lowered.

The invention discloses a slag discharging device which is installed on a pulverized coal burner to realize the purpose of discharging slag in real time. The slag discharging device comprises an upper slag discharging structure and a lower slag discharging structure, wherein the upper slag discharging structure comprises an upper push rod, an upper slag pushing plate and a driving power device I, wherein the upper push rod is driven by the driving power device I to push and scrape the slag accumulated on the surface on the upper part of the inner cavity wall of a burning chamber by front-and-back reciprocating slide; and the lower slag discharging structure comprises a lower push rod, a lower slag pushing plate and a driving power device II, wherein the lower push rod is driven by the driving power device II to push the slag accumulated on the surface of the lower part of the inner cavity wall of the burning chamber to a slag outlet at the back part of the burning chamber. The slag pushing device of the invention is designed according to colloidal materials in the burning process and agglutination mode of coal slag in the cavity and fully considers different structures and characteristics of the upper cavity part and the lower cavity part; and the slag discharging device has the advantages of high slag discharging efficiency, compact integral structure and convenient operation and can ensure that coal slag in the cavity can be cleared in time, thereby effectively improving the burning efficiency of pulverized coal.

The invention discloses a drilling interval variable-diameter spiral drill pipe for a soft-hard composite coal seam. The drilling interval variable-diameter spiral drill pipe comprises a high spiral blade, a low spiral blade and a drill pipe body, wherein the high spiral blade is higher than the low spiral blade, and due to the different heights of the blades, the maximum outer diameter tangent line of the drill pipe axially forms a periodic high-low fluctuation state. According to the drilling interval variable-diameter spiral drill pipe disclosed by the invention, the migration of drilling cuttings is in a continuous fluctuation state and accumulation is not liable to cause by virtue of an interval high-low fluctuation-type deslagging space formed by the height different of the spiral blades, thus reducing the occurrence probability of accumulation blockage between conventional spiral drill pipe blades; meanwhile, air vents are formed in the high spiral blade to realize compressed air drilling, thus expanding the functions of the drill pipe. The drilling interval variable-diameter spiral drill pipe disclosed by the invention is novel in design; the characteristics of the deslagging space in a drill hole are changed, the deslagging efficiency is increased, and the problems of low drilling depth, low drilling efficiency, frequent drill hole accidents and the like of the conventional spiral drill pipe are overcome due to innovation for the section shape of the drill pipe; the drilling interval variable-diameter spiral drill pipe is especially suitable for the soft-hard composite coal seam with a firmness coefficient f of greater than 0.5 and not greater than 1.

The invention discloses a vertical type coal dust corner tube boiler which comprises a burner, a boiler furnace, a high temperature air preheater, a coal economizer, a low temperature air preheater convection tube bundle, an upper collecting box, a top collecting box, a boiler barrel and a lower collecting box. The lower collecting box is arranged at the bottom of a boiler body, and the upper collecting box and the top collecting box are arranged at the top of the boiler body and are communicated through a vapor communicating pipe. The vertical type coal dust corner tube boiler is characterized in that the burner is arranged in the front of the boiler body, the boiler body is of a vertical type tubular membrane type water-cooled wall structure, four down pipes are arranged at four corners, and the down pipes and two ends of the membrane type water-cooled wall are communicated with the upper collecting box and the lower collecting box respectively. The convection tube bundle is arranged on the outer side of the membrane type water-cooled wall, the top of the convection tube bundle is communicated with a hearth smoke outlet, and the bottom of the convection tube bundle is communicated with the high temperature air preheater. The vertical type coal dust corner tube boiler has the advantages that an integral structure is compact, the appearance is arranged simply, an occupied area is small, steel consumption is small, water circulating differential pressure of the boiler is large, and water circulation is safe and reliable, and the like.

The invention relates to an automatic smelting, water-containing and residue-filtering slot which comprises a slot body; the slot body is made of a refractory material; the slot body comprises a first sub slot and a second sub slot; a partition plate capable of moving in the vertical direction is arranged between the first sub slot and the second sub slot; a water inlet is formed in the inner side surface of the first sub slot; the opening of the water inlet faces upwards; a water containing hole is formed in the outer side surface, which corresponds to the side wall, of the water inlet; the water containing hole communicates with the water inlet; a residue discharge hole is formed in one side wall, which is adjacent to the side wall where the water containing hole is located; at least one fan is arranged at the upper end of the other side wall, which is adjacent to the side wall where the water containing hole is located; a water discharge hole is formed in the side wall of the second sub slot; the upper end of the partitioning plate is equipped with an air cylinder; the output shaft of the air cylinder is fixedly connected with the partition plate; and the output shaft of the air cylinder drives the partition plate to vertically move in a telescopic manner. Compared with the prior art, floating residues float quickly, residue removal efficiency is high, continuous operation can be realized, and degree of automation is high.

The invention discloses U-shaped continuous deslagging equipment for a vertical shaft. The U-shaped continuous deslagging equipment comprises a residual soil slurrying system, a residual soil transportation system, a slurry separation system, a shaft bottom hanging scaffold and a headframe, wherein the shaft bottom hanging scaffold is hung on the headframe; the slurry separation system is arranged outside the vertical shaft; the residual soil slurrying system is arranged on the shaft bottom hanging scaffold; a slurry discharging hole of the residual soil slurrying system is connected with a slurry feeding hole of the residual soil transportation system; a slurry discharging hole of the residual soil transportation system is connected with a slurry feeding hole of the slurry separation system; a slurry discharging hole of the residual soil transportation system is connected with the residual soil slurrying system; and a slurry discharging hole of the slurry separation system is connected with the slurry feeding hole of the residual soil transportation system. According to the U-shaped continuous deslagging equipment, an underground slurry circulating channel is constructed by using a U-shaped pipe and other equipment through a gas lifting method, residual soil is injected to the U-shaped pipe through a grouting pump, is transported to the ground through the high-speed flowing slurry and is cleared after being separated by the slurry separation system, and the slurry is recycled. The U-shaped continuous deslagging equipment is simple in structure, automatic and continuous deslagging is realized, and the deslagging efficiency is increased.