70results about How to "Improve slag discharge efficiency" patented technology

The invention discloses a slag slipping device for an inclined shaft TBM and the inclined shaft TBM. The problem that in the prior art, in the slag tapping process of an inclined shaft TBM, slag stone is prone to blocking is solved. The TBM slag sliding device for the inclined shaft comprises a slag collecting ring and a base and further comprises a slag sliding groove, an assembling through groove is formed in the slag collecting ring, a slag stone intercepting mechanism is arranged in the assembling through groove, the slag inlet end of the slag sliding groove is located in the assembling through groove and corresponds to the slag stone intercepting mechanism, and the slag sliding groove is connected with the base through an angle adjusting mechanism. The angle adjusting mechanism adjusts the inclination angle of the slag chute relative to the base; an auxiliary slagging-off mechanism is connected to the slag sliding groove through a sliding mechanism, and the sliding mechanism adjusts the position of the auxiliary slagging-off mechanism on the slag sliding groove. By arranging the angle adjusting mechanism at the bottom of the slag chute, when the heading machine performs slope heading work, the slag chute can rotate along the rotating shaft through stretching of the hydraulic rod, so that the angle of the slag chute is adaptively adjusted, the falling kinetic energy of slag stones is increased or reduced, and the problem that self-slag-sliding is difficult to realize is solved.

The invention provides a deslagging device and method for vertical shaft construction, and belongs to the technical field of vertical shaft construction auxiliary equipment.The deslagging device for vertical shaft construction comprises a sliding supporting mechanism, a well mouth supporting mechanism, a rotating disc, a plurality of slag shoveling mechanisms, a plurality of transverse conveying mechanisms and a longitudinal conveying mechanism located in the middle of a vertical shaft; the sliding supporting mechanism is arranged in the vertical shaft in a sliding mode and fixed to the designated position of the shaft wall through an abutting piece. The well mouth supporting mechanism is installed at the well mouth position of the vertical shaft and provided with a lowering assembly used for lowering the sliding supporting mechanism into the vertical shaft. The rotating disc is rotationally installed on the face, facing the shaft bottom of the vertical shaft, of the supporting frame, the multiple slag shoveling mechanisms are distributed at the bottom of the rotating disc in the circumferential direction of the rotating disc, the multiple transverse conveying mechanisms are correspondingly arranged on one sides of the slag shoveling mechanisms and used for conveying the slag to the longitudinal conveying mechanism, and the longitudinal conveying mechanism is used for conveying the slag out of the vertical shaft. The slag discharging efficiency can be improved, and meanwhile the slag discharging device is not limited by slag characteristics and using conditions.

The utility model discloses a boiler deslagging device, which belongs to the technical field of boiler deslagging equipment and comprises a deslagging warehouse and a discharge pipe arranged at the bottom of the deslagging warehouse, a valve device is arranged on the discharge pipe, a transmission chamber and a deslagging chamber are respectively arranged in the deslagging warehouse from top to bottom, and a feed hopper is arranged at the top of one side of the transmission chamber. A residue discharging opening communicated with the residue discharging chamber is formed in the bottom of the other side of the conveying chamber, and an auger rod device matched with the feeding hopper and the residue discharging opening is rotationally connected into the conveying chamber; the deslagging chamber is divided into a first deslagging cavity and a second deslagging cavity through a partition plate, the tops of the first deslagging cavity and the second deslagging cavity are communicated, the number of the discharging pipes is two, and a screening plate is obliquely arranged at the top of the second deslagging cavity through a vibrator. The conveying chamber and the auger rod device are arranged, so that slag in the conveying chamber can be continuously discharged into the slag discharging chamber, the slag discharging chamber is arranged, the screening plate is obliquely arranged on the vibrator, large particles in the slag can be screened, and the two discharging pipes are arranged, so that the requirements of different users on slag treatment can be met.

The present application relates to complex stratum pile foundation construction technology field, disclose a kind of riprapping stratum full casing rotary and rotary drilling combined hole construction method, comprising the following steps: leveling construction ground;Pile position lofting is carried out, and guiding positioning structure is set;First section casing with grouting passage is installed on full casing rotary drilling machine, grouting passage is used for grouting;Through full casing rotary drilling machine clamping casing, drive casing press into riprapping stratum, while rotary drilling carries out soil taking;Slurry is injected by grouting passage, and riprapping body outside casing is consolidated to form annular consolidated body;The elevation difference between the soil taking surface of rotary drilling and the bottom end of casing is controlled to be within the preset range, and the following protection wall is formed;Lengthen next section casing, and connect adjacent grouting passage;Until casing penetrates riprapping layer and main sand layer and enters lower stable layer.The present application can solve the problems of difficult riprapping stratum hole forming, easy hole collapse, easy grouting leakage and easy drill sticking.

The utility model relates to the technical field of disc type separator, concretely is a disc type separator slagging-off port protection structure, including the drum, the slagging-off port that opens on the lateral wall of drum and installs the protection piece on the slagging-off port, the slagging-off port is evenly distributed along the circumference of drum, the protection piece includes the connecting section and respectively located big bending section and small bending section of the both ends of connecting section, connecting section, big bending section and small bending section integrated, the protection piece sets up between two adjacent slagging-off ports, big bending section is connected in one of the lateral wall of slagging-off port, small bending section is connected in the lateral wall of adjacent slagging-off port, and the connecting section is located in the inside of drum, this scheme can block the solid material impact slagging-off port in disc type separator, reduces the wear and deformation of slagging-off port, prolongs the service life of drum, and the structure is simple, effectively promotes the dismounting convenience, reduces the installation maintenance cost.

The utility model relates to the technical field of centrifugal machines, in particular to a deslagging device of a horizontal spiral discharging sedimentation centrifugal machine, which comprises a machine frame, an upper cover and a centrifugal machine, the centrifugal machine is connected inside the machine frame, the upper end of the machine frame is connected with the upper cover, and a discharging port is arranged at the lower end of the machine frame. The centrifugal machine is composed of a horizontal spiral shaft, an outer sleeve, slag outlets and anti-sticking coatings, the outer sleeve is connected to the outer portion of the horizontal spiral shaft, the slag outlets are formed in one side of the outer sleeve, the anti-sticking coatings are arranged in the machine frame, the upper cover and the outer sleeve, and a layer of protective film is formed in the machine frame, the upper cover and the outer sleeve through coating. The polymer coating has good wear resistance and corrosion resistance, the slag outlets are annularly distributed in the outer sleeve at equal intervals, the positions of the slag outlets are the same as the centrifugal force direction, the slag outlets can annularly run along with the centrifugal force during slag discharging, damage to the inner wall of the rack and the inner wall of the upper cover is reduced, and the slag discharging efficiency is improved.

The utility model discloses a pump suction type reverse circulation drilling machine for pile foundation construction, which relates to the technical field of circulation drilling machines, and comprises a mounting plate and a plurality of mounting holes, and further comprises a drilling mechanism arranged on the mounting plate and used for drilling; the pump suction mechanism is arranged on the drilling mechanism, and the pump suction mechanism comprises a mounting part arranged on the drilling mechanism; the number of the mounting grooves is multiple, and the multiple mounting grooves are formed in the mounting piece; the slag suction pump is arranged in the mounting groove; the auxiliary pump is arranged in the mounting groove; the double-head connector is arranged on the slag suction pump; the first pipeline is arranged between the double-end connector and the auxiliary pump; and the first connecting pipeline is arranged on the auxiliary pump. According to the device, by arranging the pumping mechanism, when the device is deeply drilled, the deep hole deslagging efficiency can be improved through the combined action of pumping and jet flow through a double-pump linkage circulating system.

This utility model relates to the technical field of slag discharge devices for furnace slag coolers, and discloses a slag discharge speed adjustment device for furnace slag coolers. The device includes a slag discharge cylinder, with an adjustment cylinder fixedly connected to the outer wall near the bottom. A rotating disk is movably connected to the bottom of the inner wall of the adjustment cylinder. The top of the rotating disk has six equidistant, annularly distributed inclined adjustment slots. An adjustment block is inserted into one end of the inner wall of each inclined adjustment slot. The output end of the adjustment block is located on the upper surface of the rotating disk. A limit slide is provided at the bottom of the slag discharge cylinder. The top output end of the adjustment block is slidably connected to the top of the inner wall of the limit slide. Through the cooperation of the above structures, this device achieves precise adjustment of the slag discharge speed of the furnace slag cooler. The rotating disk is driven to rotate by a forward and reverse motor, causing the adjustment block to move within the limit slide, changing the cross-sectional area of ​​the slag discharge channel. Simultaneously, a stirring roller driven by a servo motor prevents slag blockage, improving slag discharge efficiency and production stability, making it more practical.

The invention belongs to the technical field of geothermal water treatment, and particularly relates to a device for precisely filtering geothermal water, the device comprises a primary filtering assembly and a second filtering assembly, the primary filtering assembly comprises a water tank and a first filter element, the bottom end of the water tank is provided with a water outlet pipe, and the first filter element is cooperatively arranged on the inner wall of the water outlet pipe; the second filter assembly comprises a first barrel and a second filter element, the upper side of the first barrel extends to form a water inlet pipe, and the water inlet pipe and the water outlet pipe are detachably connected; a slag discharging opening is formed in the bottom side of the upper end of the first barrel, the water inlet pipe is located between the second filter element and the slag discharging opening, and a water outlet is formed in the bottom end of the first barrel; a spiral feeding mechanism is arranged in the first barrel body and is used for discharging filter residues in the first barrel body. According to the device, multi-stage filtering equipment can be integrally designed, synchronous maintenance and filter element replacement are facilitated, filter residues are discharged at a time, and the filtering efficiency and the residue discharging efficiency are greatly improved.

The present invention relates to a push-type guide drill bit, a drilling tool and a drilling method for underground coal mines. The present invention introduces flushing fluid into a groove body arranged on the outer surface of the drill bit body, and uses the flushing fluid to drive a push leg arranged in the groove body to extend out of the groove body to adjust the drilling direction. Therefore, the present invention has higher drilling efficiency, higher trajectory control accuracy and higher safety.

The invention provides a small-opening panel type heading machine cutter head and a heading machine comprising the same, and belongs to the technical field of tunnel engineering construction. Comprising a panel, a cutter and an adjustable sealing plate assembly, a plurality of slag discharging holes are formed in the panel, and the aperture size of each slag discharging hole is smaller than the particle size through which a slurry discharging pump can pass; the cross section of each slag discharge hole is square, and the vertical section of each slag discharge hole is of a conical horn-shaped structure with a small front part and a large rear part; a cutter is installed on the side end face, close to the tunneling direction, of the panel. The adjustable sealing plate assembly is arranged at the end, away from the cutter, of the panel. By arranging the opening-adjustable sealing plate assembly, when the small-opening panel type heading machine cutterhead carries out heading in stratums with poor stability such as sandy soil, an outer opening is sealed through a sealing plate, and the opening ratio of the cutterhead is reduced so as to improve the balancing capacity of the cutterhead to a tunnel face; when the cutterhead is tunneled in clay and other stratums with good stability, the sealing plate is adjusted to increase the aperture ratio of the cutterhead, the cutterhead is prevented from being pasted, and the deslagging efficiency of the cutterhead is improved.

The present application provides a slag discharge mechanism for a cutting slot shaft drilling rig, wherein the mounting assembly includes a mounting frame and two driving members, and the two driving members are both mounted on the mounting frame. Both slag discharge assemblies can be slidably mounted on the mounting frame, and can move toward or away from each other along a first direction under the drive of the two driving members. The slag discharge assembly includes a bearing member, a semicircular sealing member, and an active slag discharge member, wherein the bearing member can be slidably mounted on the mounting frame, and can move along a first direction under the drive of the driving member, and is used to collect ore and rock and muddy water, wherein the semicircular sealing member is mounted on one end of the bearing member along the first direction, and the active slag discharge member is mounted on the bearing member, and is configured to discharge the ore and rock and muddy water on the surface of the bearing member. The slag transport assembly is mounted on one of the bearing members, and is used to receive the ore and rock and muddy water discharged from the surface of the bearing member. The slag discharge mechanism for a cutting slot shaft drilling rig provided in the present application improves the slag discharge efficiency compared to the related art that uses the self-weight of ore and rock and muddy water to discharge.

The invention discloses a low-damping type matrix overflow-discharging vacuum gypsum mold forming mold and a casting method, the low-damping type matrix overflow-discharging vacuum gypsum mold forming mold comprises a mold body and overflow-discharging capillary tubes, and the overflow-discharging capillary tubes are inserted into the mold body in a sliding mode; the multiple overflow discharging capillary tubes are arranged in an array mode. According to the low-damping type matrix overflow discharging vacuum gypsum mold forming mold and the casting method, the overflow discharging capillary tubes are arranged, so that the overflow discharging capillary tubes and the gypsum mold are combined into a whole in the gypsum mold forming process, the demolding resistance of the gypsum mold is reduced, and the gypsum mold is complete and not prone to being damaged; and in the gypsum mold dewaxing roasting process, the phenomena of overflow hole blockage and crack do not occur, so that the final finished product quality is improved.

The invention relates to a kind of air and water pumping conversion device and its adaptive drilling method, including coaxial nesting device and adaptive control device, one end of coaxial nesting device is equipped with gas extraction hose, high-pressure water supply hose and high-pressure air supply hose, the other end is connected with coaxial nesting drill rod, coaxial nesting drill rod is connected with drill bit, and coaxial nesting device is connected with adaptive control device;Coaxial nesting device includes outer cylinder, three layers of pipes are arranged in outer cylinder, which are water supply channel, air supply channel and extraction pipeline arranged coaxially from outside to inside, the end of water supply channel is connected with high-pressure water supply hose;The end of air supply channel is connected with high-pressure air supply hose;The end of extraction pipeline is connected with gas extraction hose.The invention realizes multi-system integration by coaxial nesting channel design, dynamically switches power mode and gas extraction strategy by combining BP neural network model and real-time sensor data, and solves the problems of low efficiency, poor safety and insufficient adaptability in prior art.

The utility model discloses an anti-vibration and anti-deposition residue collecting device which comprises a box body, and the box body is provided with a residue stirring device. An inclined filter plate is arranged at the bottom in the box body, and a water hammer absorbing device is mounted at the top in the box body; a water hammer absorbing device is arranged at the top of the box body, the water hammer absorbing device comprises an air cylinder, the bottom of the air cylinder is communicated with the box body, a piston is arranged in the air cylinder, and a sealing ring is arranged on the outer side of the piston; the sediment collecting device has the advantages that the sediment can be effectively prevented from being deposited at the bottom, meanwhile, the shock-proof function of the sediment collecting device can effectively reduce the impact force of surge on the sediment groove, the service life of the sediment collecting device is prolonged to the maximum extent, and the cost for treating membrane concentrated liquid is reduced to a certain extent.

The utility model relates to a T-shaped tundish deslagging device, and belongs to the technical field of steelmaking equipment in the metallurgical industry. According to the technical scheme, the slag discharging device comprises a T-shaped tundish (1), slag discharging openings (2), slag sliding grooves (3), slag hoppers (4) and a flow stabilizer (12), the number of the slag discharging openings (2) is two, the two slag discharging openings (2) are formed in the positions, on the two sides of the flow stabilizer (12), of a tundish body of the T-shaped tundish (1) respectively, one slag sliding groove (3) and one slag hopper (4) are arranged below each slag discharging opening (2), the slag sliding grooves (3) are located between the slag discharging openings (2) and the slag hoppers (5), and the slag sliding grooves (3) are obliquely arranged. And a slag blocking wall (11) matched with the flow stabilizer (12) is arranged in the T-shaped tundish (1). The tundish slag removal device has the advantages that the flowing track of molten steel in a tundish can be improved, the retention time of the molten steel in the tundish is prolonged, floating removal of inclusions is promoted, and the slag removal efficiency of the tundish is improved.

The utility model discloses a slag discharging device of an inclined rotating cone burner, which comprises a blocking piece, a rotating shaft and a limiting piece, the blocking piece is arranged on the inner wall surface of a cavity of the burner and rotates between a first position and a second position relative to the inner wall surface of the cavity, and when the blocking piece is located at the first position, the rotating shaft rotates relative to the inner wall surface of the cavity. The blocking piece is used for closing a slag discharging opening in the combustor, when the blocking piece is located at the second position, the blocking piece is far away from the slag discharging opening, the rotating shaft is arranged on the combustor and can rotate relative to the combustor, at least part of the blocking piece is connected with the rotating shaft, the limiting piece is arranged on the inner wall face of the cavity, and the blocking piece is located on the inner wall face of the cavity. The rotating shaft is located between the slag discharging opening and the limiting piece, and the limiting piece is used for limiting the blocking piece. The slag discharging device of the inclined rotating cone combustor has the advantage of being high in slag discharging efficiency.

The invention belongs to the field of coal mine underground drilling, and particularly discloses a pressure-relief blowout-prevention combined spiral drilling tool for upward hole drilling and a using method thereof.The pressure-relief blowout-prevention combined spiral drilling tool comprises a spiral slag feeding drill bit, a sieve hole spiral drill rod section, a spiral drill rod section, a rotary slag discharging device and a drill tail slag collecting device which are arranged in an inclined upward drill hole; 2-4 continuous spiral blades are arranged on the outer surfaces of the spiral slag feeding drill bit, the screen hole spiral drill rod section and the spiral drill rod section, and a spiral slag discharging channel is formed between every two adjacent spiral blades; a plurality of slag inlets are formed in the spiral slag feeding drill bit, a plurality of radial slag inlets are formed in the spiral slag discharging channel of the screen hole spiral drill rod section, and the slag inlets and the slag inlets are all communicated with the air leakage slag discharging channel. According to the drilling tool, the gas leakage deslagging channel located in the center of the drilling tool is additionally arranged, in the drilling process, on one hand, the deslagging efficiency can be greatly improved, the drilling resistance is reduced, on the other hand, high-pressure gas can be prevented from being accumulated in a drill hole, and the pressure relief and blowout prevention functions are achieved.

The invention provides a deslagging system of a vertical shaft heading machine under tuff geological conditions, which is used for solving the problem that when the vertical shaft heading machine in the prior art is used for deslagging in a scraping plate manner, muddy rock slag adhered to a scraping plate of the vertical shaft heading machine cannot be removed or the muddy rock slag solidified into solid rock slag cannot be removed to block a channel. In order to achieve the purpose and other related purposes, the invention provides a deslagging system of a vertical shaft heading machine under the tuff geological condition. The deslagging system comprises a cutterhead body, a lifting unit of a deslagging channel located in the center of the cutterhead, a deslagging unit comprising a conveying subunit and a scraper, a topsoil cleaning subunit and a solidified tuff cleaning subunit, and the deslagging system capable of timely cleaning the scraper in the deslagging unit underground is obtained. Therefore, the problem that in the prior art, when the vertical shaft heading machine discharges slag in a scraping plate mode, muddy rock slag adhering to a scraping plate of the vertical shaft heading machine cannot be discharged or the muddy rock slag cannot be discharged after being solidified into solid rock slag, and a channel cannot be blocked is solved.

The present application relates to the technical field of tunnel construction, in particular to a medium-wind-pressure slag discharge construction process under the geological conditions of super-large buried depth and high stress soft coal seam, comprising the following steps: S1, establishing a slag discharge system, the slag discharge system comprising a medium-wind-pressure conveying system and a ground slag discharge system, the ground slag discharge system being communicated with a coal uncovering hole through a slag discharge channel, the slag discharge channel and the coal uncovering hole axis intersecting at an included angle, the included angle M satisfying 30°≤M<90°; S2, drilling construction; S3, installation of an extraction pipe; S4, regular extraction and checking of extraction concentration. The gas can be diluted by air pressure, the gas concentration is reduced, and the construction safety is ensured. Meanwhile, the slag is conveyed to the ground slag discharge system through the slag discharge channel which is separately established and intersects with the coal uncovering hole at an acute angle, the slag can smoothly enter the slag discharge channel along the drilling axis direction, the slag conveying distance between the drill pipe and the ground slag discharge system is extended, which is conducive to avoiding the situation of hole spouting caused by slag blockage at the hole position, the slag discharge efficiency is improved, and the hole spouting risk is reduced.

The utility model belongs to the technical field of reamers, and particularly relates to a cone reamer. The cone reamer comprises a center shaft, a water inlet interlayer, a plurality of cone assemblies and a spray pipe, the center shaft is connected with the drill rod, and slurry can be conveyed to the water inlet interlayer through a center hole. The sealing part, the side plate and the sealing plate jointly define the water inlet interlayer, the spray pipe is arranged on the sealing plate, slurry is finally sprayed out through the spray pipe after entering the water inlet interlayer, and the effects of cooling, lubricating, deslagging and the like can be achieved. The mounting plate is divided into a sealing part in the center position and a plurality of mounting parts located in the circumferential direction of the sealing part, the sealing part corresponds to the sealing plate in the axial direction and can define a water inlet interlayer, and the mounting parts extend outwards in the radial direction and are used for mounting the cone assembly. By means of the arrangement, the size of the water inlet interlayer can be made to be small, the area of the corresponding chip discharging groove is increased, and the slag discharging efficiency is greatly improved.

The invention relates to the technical field of aluminum alloy conductors, and discloses a novel aluminum alloy conductor preparation device and a preparation method thereof.The novel aluminum alloy conductor preparation device comprises a bottom supporting table, the top of the bottom supporting table is fixedly connected with a bottom heating machine, one side of the bottom supporting table is fixedly connected with a supporting side frame, and the top of the bottom supporting table is fixedly connected with a bottom electric push rod; the output end of the bottom electric push rod is fixedly connected with a connecting table; internal liquid is driven to be rapidly mixed through the rapidly rotating refining cylinder, so that the mixing efficiency of a refining agent is improved, meanwhile, the mixing effect of alloy and molten aluminum is improved, and the preparation effect of an aluminum alloy conductor is improved; different transmission parts can be conveniently driven to work through the portable adjusting top connecting disc, the portability of molten aluminum preparation is improved, and manual repeated operation is not needed; and the bottom filter screen which is automatically moved out can bring out particulate matters such as scum in the molten aluminum, so that an operator does not need to repeatedly use tools, the workload of the operator is reduced, and the deslagging efficiency is improved.

The present invention discloses an air cushion direct discharge dual-channel slag discharge mechanism, which relates to the technical field of shield machine slag discharge, including a shield body, a U-shaped branch pipe equipped with a channel-changing slag discharge member, and a flow-increasing stirring member installed on the outer side of the driving disk. The present invention sets a channel-changing slag discharge member, and uses a mud pump to discharge the mud inside the mud and water bin through the U-shaped branch pipe. In this process, the filter plate is used to block the soil and rocks with larger diameters inside the mud and water bin, and at the same time, the second baffle plate blocks the bottom of the discharge pipe. After the mud inside the mud and water bin is discharged, the telescopic cylinder is started, and the first baffle plate blocks one end of the U-shaped branch pipe through the extension of the telescopic cylinder. At the same time, the bottom of the discharge pipe loses the shielding of the second baffle plate, and the motor is started to discharge the soil and rocks with larger diameters inside the mud and water bin through the slag discharge pipe, so as to prevent the pipeline from being blocked during the slag discharge process, thereby enhancing the slag discharge effect and further improving the slag discharge efficiency.

The application discloses an automatic slag discharging device and numerical control machine tool equipment. The automatic slag discharging device comprises a straight-out slag discharging structure and a confluence slag discharging structure, and the straight-out slag discharging structure and the confluence slag discharging structure are arranged on different sides of a machining platform respectively. The straight-out slag discharging structure comprises a straight-out screw rod and a straight-out groove, and the extension direction of the straight-out groove is parallel to the axial direction of the straight-out screw rod. In the cross section perpendicular to the axial direction of the straight-out screw rod, at least part of the straight-out screw rod is located in the straight-out groove. The straight-out screw rod is used for rotating around the axial direction to move the slag in the straight-out groove along the extension direction of the straight-out groove. The confluence slag discharging structure comprises a confluence screw rod and a confluence groove, and the extension direction of the confluence groove is parallel to the axial direction of the confluence screw rod. In the cross section perpendicular to the axial direction of the confluence screw rod, at least part of the confluence screw rod is located in the confluence groove. The confluence screw rod is used for rotating around the axial direction to move the slag in the confluence groove along the extension direction of the confluence groove. The straight-out groove is connected with the confluence groove. The slag discharging efficiency is high.

The utility model provides a residue discharge system for glycerin distillation residues. The residue discharge system comprises a stripping kettle, a residue storage tank, a first vacuum pipeline, a first vacuum valve, a bottom blowing steam pipeline, a bottom blowing steam valve, a residue discharge steam pipeline, a residue discharge steam valve, a first residue discharge pipeline and a first residue discharge valve, the method comprises the following steps: firstly closing a first vacuum valve, then blowing high-pressure steam into a stripping kettle through a bottom blowing steam pipeline, loosening bottom residues, and then closing a bottom blowing steam valve; opening a residue discharge steam valve and a first residue discharge valve, extruding residues in the stripping kettle out of the stripping kettle by utilizing the pressure of high-pressure steam, and discharging the residues into a residue storage tank through a first residue discharge pipeline; after residue discharging is finished, high-pressure steam continues to be blown in for purging, residual materials in the pipeline are purged cleanly, and then the residue discharging steam valve and the first residue discharging valve are closed; glycerin residues in the stripping kettle can be quickly and efficiently discharged, meanwhile, pipeline purging is considered, the residue discharging efficiency is improved, and the pipeline is prevented from being blocked by the residues.

The invention belongs to the technical field of filter pressing equipment, and discloses a filter pressing device for electrolytic zinc production and a filtering method.The filter pressing device comprises a filter pressing cylinder, a driving assembly, a filtering assembly, a push ring, a contraction assembly and a push rod sliding in the filter pressing cylinder, the filter pressing cylinder is fixedly installed on a machine body support, the driving assembly is fixedly installed on the machine body support, and the push ring is fixedly installed on the machine body support; the driving assembly is used for driving the push rod to move in the axial direction, the filtering assembly is connected into the filter pressing cylinder in a sliding mode and arranged on the push rod in a sleeving mode, the filtering assembly comprises an installation sleeve, at least two sliding grooves are formed in the outer wall of the installation sleeve, and locking assemblies are installed on the inner walls of the sliding grooves. When the filter screen moves towards the outside of the filter pressing cylinder, the circumferential edge of filter residues compressed into a disc shape is gradually separated from the inner wall of the filter pressing cylinder, so that the contact area between the structures is reduced, meanwhile, when the filter screen moves, the filter residues attached to the filter screen are loosened, the filter screen can push the filter residues out of the filter pressing cylinder, and therefore rapid residue discharging is achieved.

The invention relates to the technical field of tunnel shield construction, in particular to a hydraulic tunnel earth pressure balance shield three-step starting construction method in a narrow space, which comprises the following steps of: dividing an earth pressure balance shield machine and a rear support into three sections, and dividing a shield starting process into three steps; according to the method, the earth pressure balance shield tunneling machine and the matched equipment thereof are lowered in batches, the earth pressure balance shield tunneling machine launching work is safely and efficiently completed, the safety risk of the whole launching process is controllable, the construction organization is reasonable and efficient, and the problems that in-hole horizontal transportation is difficult and materials cannot follow up in time in the launching stage of the earth pressure balance shield tunneling machine in a narrow space are successfully solved; the construction period of a starting section is greatly shortened, and the construction cost is reduced. Aiming at the characteristics of narrow working well space of the hydraulic tunnel and numerous matched trolleys behind the shield tunneling machine, the device can improve the transportation efficiency of materials in the tunnel and ensure the filling of wall back grouting, and has the advantages of good technical benefit, economic benefit and progress benefit.

The invention relates to the technical field of shield tunneling machine automatic control, in particular to an automatic control system and method for a shield tunneling machine muddy water conveying system, and the method comprises the following steps: when a shield tunneling machine starts tunneling or stops tunneling, executing a bypass mode, and transiting from the bypass mode to a tunneling mode or transiting from the bypass mode to a stop mode. According to the automatic control system and method, the tunneling mode, the stop mode and the bypass mode are set, the muddy water conveying system is automatically controlled to enter the bypass mode according to whether the shield tunneling machine conducts tunneling or not, then the muddy water conveying system enters the tunneling mode or the stop mode from the bypass mode, and through transition of the bypass mode, the muddy water conveying system is automatically controlled to enter the tunneling mode or the stop mode. And the stability of muddy water circulation and pressure adjustment can be ensured.

The utility model relates to an automatic dumping deslagging system for a tunnel, and relates to the technical field of tunnel construction equipment. The device comprises a track which is laid on a tunnel, and a dumping table is arranged at the end, located at a tunnel exit, of the track; the device further comprises a base, a slag discharging vehicle, a traction assembly, a sealing plate, a driving assembly, a lifting part and a buffering mechanism, the base is slidably installed on the tunnel, and the slag discharging vehicle is installed on the side, away from the tunnel, of the base; the traction assembly is used for driving the base to move along the track; the sealing plate is slidably connected to one end of the deslagging vehicle. The driving assembly is used for driving the sealing plate to slide in the height direction of the deslagging vehicle. The lifting piece is used for lifting the end, away from the sealing plate, of the slag discharging trolley; the buffering mechanism is used for buffering slag dumped from the slag discharging vehicle; the tunnel deslagging device has the effect of improving the tunnel deslagging efficiency.