142results about How to "Smooth slag discharge" patented technology

A high-density pressurized fluid bed coal gasification device and a method relate to a gasification device and a method which are especially suitable for the efficient treatment of the high-sulfur, high-ash and high ash fusion point coal with high reserve volume in China and have the advantages of broad coal type adaptability, high carbon transformation ratio in the gasification process, high heat value of coal gas, low investment and excellent environment-friendly performance. A gasification reactor (1) is arranged in a pressure shell (2) and is divided into a dense-phase turbulent flow fluidizing section (9), a high-density core-annulus flow section (10) and a density rapid flow section (11) from bottom to top, and according to the gasification character of the goal with high sulfur, high ash and high ash fusion point, flow states with different features are adopted for pressurizing and sectionalized gasification from bottom to top and the pressure for gasification is 1.0-2.5MPa.

The invention discloses a circulating fluidized bed garbage incineration boiler and a pollution control system with the same, which relate to a garbage incineration boiler and a pollution control system with the same, and aim to solve the problems that the conventional circulating fluidized bed garbage incineration furnace difficultly discharges slag and is required to be stopped regularly to remove the slag and the economy of a garbage incineration plant is influenced. According to the scheme I, a circulating fluidized bed and double V-shaped wind distributing plates are arranged in a boiler body, the boiler body, a separator, a flue gas cooling chamber and a tail flue are communicated in sequence, an upper level low-temperature superheater, a lower level low-temperature superheater, a primary wind air preheater, a secondary wind air preheater, an upper level primary wind economizer, a lower level primary wind economizer, an upper level secondary wind economizer and a lower level secondary wind economizer are arranged in the tail flue, and the separator is communicated with the boiler body by a U-shaped valve; different from the scheme I, the scheme III is characterized in that: double inverted V-shaped wind distributing plates are adopted; different from the scheme III, the scheme V is characterized in that: an inverted V-shaped wind distributing plate is adopted; and according to the scheme II, the scheme IV and the scheme VI, a semidry reaction tower, a bag-type dust collector, an induced draft fan, a chimney, a fly ash cabin, a lime slurry preparation system, a rotary atomizer and an active carbon injecting device are added on the basis of the scheme I, the scheme III and the scheme V. The circulating fluidized bed garbage incineration boiler and the pollution control system with the same are used for incinerating garbage, and pollutant emission can be controlled.

The invention discloses a pipe jacking construction technology through water-mud balance. The pipe jacking construction technology comprises the steps of construction preparation, equipment mounting and debugging, pipe jacking machine out of a hole, pipe section jacking construction, intermediate jacking station jacking construction, main top jacking and the like, and circulation is conducted till jacking is finished. Through the construction technology, construction is conducted especially aiming at the specific soil texture of the pipe jacking construction technology, the operation difficulty is greatly reduced, the maximum amount of excavation is increased, the construction technology is easy, the construction progress is quick, the construction difficult problems such as ground subsidence are controlled within the range stipulated by standards, and the construction technology is suitable for being applied and popularized.

The invention discloses a liquid molten slag dry-type centrifugal granulation and afterheat recycle system having molten slag buffer-storage and flow control functions. The system comprises a molten slag buffer-storage and flow control unit, a granulation unit, a mobile bed unit and an afterheat utilization unit; the molten slag buffer-storage and flow control unit is arranged at the upper part ofthe granulation unit and is used for buffer-storage of the liquid molten slag and controlling the flow rate and speed of the liquid molten slag falling to the granulation unit; the granulation unit is used for granulating the falling liquid molten slag; the mobile bed unit is arranged at the lower part of the granulation unit and is used for cooling and temporarily storing the granulated molten slag; hot air inside the granulation unit and the mobile bed unit communicates with the afterheat utilization unit; and the afterheat utilization unit comprises a hot air flue, a primary dust collector, an afterheat boiler, a secondary dust collector, an exhaust fan and a chimney which are arranged in sequence. The system disclosed by the invention does not use water resources, is free of environmental pollution, can effectively recycle high-quality afterheat resources contained in the high-temperature liquid molten slag, and can meet the urgent requirements of energy conservation and emissionreduction of the present steel and iron industry.

The invention discloses a method for preprocessing coal tar. The method comprises the following steps of: mixing the coal tar and an extractant A in a mass ratio of 1:0.5-1:4, heating the mixture to the temperature of between 50 and 150 DEG C, and performing continuous centrifugal separation on the obtained mixed solution in a sedimentation type centrifuge to obtain soluble matters and impurity-containing extraction insoluble matters. The method has the advantages of good impurity-removing effect, high utilization ratio of the coal tar (over 96 percent), simple process, high automaticity, andlow labor intensity, and suitability for large-scale preprocessing of the coal tar and comprehensive utilization and deep processing of full-cut coal tar which is the byproduct in industries such as coal chemical industry, coal gasification industry and the like..

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 relates to a slag-discharging system of a pulverized coal gasification furnace. A gasification chamber communicated with a feed port is arranged in the shell of the pulverized coal gasification furnace. A slag chamber is positioned below the gasification chamber and is communicated with the gasification chamber through a slag screen. The upper end of the slag chamber is provided with a chilling circular pipe for spraying chilling water towards coal slag entering the slag chamber, and the lower end of the slag chamber is communicated with a slag hole arranged at the bottom of the shell through a tapered slag hopper. The slagging system of the pulverized coal gasification furnace is characterized in that the peripheral wall of the slag chamber is provided with a plurality of water injection nozzles connected with a chilling water system. Compared with the prior art, the slagging system of the pulverized coal gasification furnace can effectively avoid slag blockage in the slag chamber, therefore, the gasification furnace can stably operate for a long term, the maintenance cost is saved, and the production efficiency is improved.

The invention provides a method for making fruit juice with pulp by using a juicer. The juicer comprises an engine base, a juice collection cavity which is connected with the engine base and a threaded rod and a squeezing container which are horizontally arranged in the juice collection cavity, wherein the threaded rod comprises a material conveying segment and an squeezing grinding segment, the squeezing container is arranged on the outer portion of the squeezing grinding segment of the threaded rod in a sleeving mode, and a juice outlet and a residue outlet are formed in the juice collection cavity; the squeezing container comprises a smashing portion and a filtering portion, a residue discharge adjustment device is arranged in the residue outlet, and the filtering portion comprises a front filtering portion which is arranged at the front end of the squeezing container and a back filtering portion which is arranged at the back end of the squeezing container. According to the method for making the fruit juice with the pulp, through the steps such as regulating steps, squeezing juicing steps and front and back filtering steps, the fruit juice with the content-controllable pulp can be made, so that the fruit juice is rich in nutrition and more diversified in mouthfeel, and the user experiment is improved.

The invention relates to the technical field of tunnel construction equipment, in particular to a same-plane multi-cutter-disc rectangular tunneling machine used in a water-rich pebble stratum. The same-plane multi-cutter-disc rectangular tunneling machine comprises a shield body, a cutter disc mechanism, a cutter disc driving mechanism and a residue soil delivery mechanism, wherein the cutter disc mechanism comprises 10 cutter discs symmetrically arranged on the same plane and comprises large cutter discs, middle cutter discs, small cutter discs and miniature cutter discs, the 10 cutter discs perform cooperative rotation on the same plane and do not interfere mutually. An advanced grouting pipe is obliquely arranged at the upper portion of the shield body. The excavation cutter discs of the same-plane multi-cutter-disc rectangular tunneling machine used in the water-rich pebble stratum are located on the same plane, unique structures of the cutter discs make the adaptability of the tunneling machine to the water-rich pebble stratum improved greatly, meanwhile an excavating face is effectively supported, soil body collapse is avoided, soil body sedimentation can be effectively controlled, and accordingly the life safety of workers is ensured.

The present invention relates to an ultrasonic conical three-share slag-off refining tank that is used for refining the active ingredients of the Chinese traditional medicine, which is provided with a conical tank body with an small upper part and a large lower part; a cylindrical large-power ultrasonic transducer is built in the conical tank body; the upper end of the ultrasonic transducer extends out of the tank top and is fixed to the tank top; the top of the tank is provided with an automatic cleaning device with a 360-degree rotation nozzle; the automatic cleaning device passes through the top of the tank and is fixed to the top of the tank, and the upper part of the automatic cleaning device is connected with a water-supply pipe; the bottom of the tank is provided with a sewage drainage port and a solid-liquid separation slag-off device; the main body of the solid-liquid separation slag-off device is a three-share with different lengths rotation-typed scraping slag-off mechanism; a filtering screen is arranged inside the solid-liquid separation device; a discharging port and a gas-charging port are arranged below the filtering screen. Compared with the prior art, the ultrasonic conical three-share slag-off refining tank has more reasonable structure, and integrates the extraction and the separation of the solid substance and the liquid; moreover, the ultrasonic conical three-share slag-off refining tank is provided with a three-share rotation-typed scraping slag-off mechanism and a pneumatic slag-washing device, so that the slag discharging is smooth, and the slag is free from building bridges and blocking.

The invention provides a screw extrusion-type juice extractor which comprises a juice collecting cup, a screw and a filter screen support. A residue collecting groove is formed in the bottom face of the juice collecting cup, the cross sectional area of the residue collecting groove is smaller than the bottom face area of the juice collecting cup, a residue discharging opening is formed in the lateral wall of the residue collecting groove, the screw is arranged in the juice collecting cup in the axial direction of the juice collecting cup, a residue scraping part is arranged at the lower end of the screw and located in the residue collecting groove, the screw is provided with a plurality of working sections, a plurality of spiral ribs are arranged on the outer surface of each working section, the filter screen support is in a taper-shaped tube shape, a plurality of convex ribs are arranged at the position, corresponding to each working section, of the inner surface of the filter screen support, gaps are reserved between each convex rib and the multiple spiral ribs of the working section corresponding to the convex rib, the gaps are larger than or equal to 0.1 mm and smaller than or equal to 1 mm, and each convex rib is divided into two sections or multiple sections. The screw extrusion-type juice extractor has the advantages of being smooth in residue outlet, easy to wash, high in juice outlet rate and the like.

The invention discloses a method for treating a complex low-grade lead-antimony material by matching dual bottom-blowing furnaces. The method comprises the following steps of: (1) proportioning of complex low-grade lead-antimony material, lead concentrate and/or lead smoke dust and flux to be pelletized; (2) smelting in the bottom-blowing oxidizing furnace; (3) reducing in the bottom-blowing reducing furnace; and (4) volatilizing and smelting in a fuming furnace, specifically, a mixture obtained by proportioning comprises, by mass, greater than 40% of Pb and 1%-5% of Sb, a mass ratio of Fe toSiO2 is (1.2-1.6):1, and a mass ratio of CaO to SiO2 is (0.3-0.7):1. The method is used for treating the complex low-grade lead-antimony material by matching the dual bottom-blowing furnaces, and thethree continuous furnaces continuously and stably operate in the whole production and smelting process by strengthening batching, so that treatment capacity of the complex low-grade lead-antimony material is improved, and adaptability to raw materials is strong; and moreover, the yield of refined antimony can be increased, other valuable metal in the lead-antimony material is recycled more, comprehensive recycling profits are increased, and great significance is achieved for survival and development of enterprises.

The invention relates to an electricity-coal process melting and reduction ironmaking technology. The electricity-coal process melting and reduction ironmaking technology comprises the following steps of: conveying metallized pellets produced by a gas/coal-based direct reduction device into a heat preservation storage silo of a melting and reduction furnace by utilizing a hot delivery device at the temperature of 900-1000 DEG C under non-oxidizing conditions, completing mixture making in the heat preservation storage silo, then conveying the mixture into a high-temperature area in the furnace, then heating by utilizing electric arc to melt the mixture, simultaneously spraying carbon powder to perform reduction, and then performing technological slagging off and electric arc heating melting in a circulating manner till the temperature and the ingredients of a sample achieve the standards, wherein the mixture making in the heat preservation storage silo is performed by mixing the metallized pellets, a reducing agent and slag charge according to the weight ratio of 85: 15: 5. The electricity-coal process melting and reduction ironmaking technology disclosed by the invention is designed against low-grade ores, refractory ores and complex ores, open-burning coal is used as energy, the carbon-containing metallized pellets are taken as raw materials, a final reduction technology for directly producing molten iron (or titanium refining slag and the like) is solved, and the electricity-coal process melting and reduction ironmaking technology is of a key technology for sustainable development of iron and steel industry in China, energy conservation, emission reduction and environment-friendly development.

The invention discloses a slag discharge device for a pyrolysis and gasification furnace of household waste. The slag discharge device for the pyrolysis and gasification furnace of the household wastecomprises the pyrolysis and gasification furnace and a slag discharge device body arranged at the bottom of the pyrolysis and gasification furnace; the slag discharge device body comprises a slag discharge pipe, a hydraulic oil cylinder and a push rod piston, a slag hopper is arranged below the interior of the pyrolysis and gasification furnace, a slag falling port is formed below the slag hopperand communicated with the slag discharge pipe, the hydraulic oil cylinder is connected with the push rod piston, a slag outlet is formed in one end of the slag discharge pipe, and the length of the push rod piston is larger than that of the slag falling port. The slag discharge device can achieve the effect of an air preheater, the temperature is guaranteed, and the energy consumption is reduced;the problems are solved that a traditional slag discharge system is huge and complicated, too much auxiliary equipment is arranged, the energy consumption is large, and the operation and maintenancecost is high; the problems of slag blockage and secondary pollution are solved, and the device has the advantages that the device is easy and reliable, the operation and maintenance cost is low, slagdischarge is smooth with a fixed quantity, incineration is thorough, and the ignition loss rate is low.

The invention discloses a squeezing type juicer. The squeezing type juicer comprises a base, a squeezing assembly mounted on the base, and a feeding assembly buckled on the squeezing assembly. A drive component is disposed inside the base, and a drive shaft is arranged at the top of the base. The squeezing assembly comprises a cup body, a meshed barrel fixedly mounted in the cup body and a screw rod located in the meshed barrel. The cup body is provided with a juice outlet and a pomace draining channel. A juice collection annular groove is formed at the bottom of the cup body and is communicated with the juice outlet. A pomace collecting annular groove is formed at the bottom of the meshed barrel and is communicated with the pomace draining channel. According to the invention, a rotating brush, a transmission mechanism of the rotating brush and a transmission gear located at the bottom of the screw rod in the prior art are omitted, so that the juicer is simpler in structure, is lower in failure rate, is prolonged in service lifetime, is more stable in operation, and is more convenient to wash.

The invention discloses a system and method for enhancing gas extraction through drilling slag discharge and hydraulic oscillation fracturing based on nanofluids. A coal rock body and broken rock at the front portion of a drill bit are wetted by the hydrophilic nanofluid in the coal body drilling process, the flowability of the coal rock body is increased, and the slag discharge smoothness in thedrilling process is ensured. Then, the hydrophobic nanofluid is injected into a coal seam to be attached to the surface of the coal body, high-pressure water is prevented from leaking off, the depth of cracks is better increased, and therefore the coal body can be efficiently cracked under the same water injection pressure, the rapid desorption of gas of the coal seam is promoted on a large scale,and the good synergistic effect of the nanofluids and the hydraulic fracturing is realized. The effect of integrating efficient drilling operation, efficient coal seam permeability improvement and efficient gas extraction is realized, the coal seam gas is scientifically and efficiently extracted, and the aim of effectively preventing high gas and low-permeability coal seam gas disasters is realized.

The invention discloses an outburst coal seam circumferential flow supply hole protection and pressure relief sieve pore drill rod. A drill rod body is formed by combining an outer pipe and an inner pipe, a plurality of axial flow supply channels are formed in the circumference of the drill rod body, and a circular-diameter inner slag discharging channel is formed in the center of the drill rod body; and a spiral groove or an axial groove or a plane is formed in the outer surface of the outer pipe of the drill rod body, and slag discharging sieve pores which are communicated with the inner slag discharging channel and avoid the flow supply channels are formed in the spiral groove, the axial groove and the plane. The drill rod is an inner slag discharging channel drill rod with circumferential flow supply, the diameter of the drill rod can be close to the diameter of a drill bit, the drill rod has the hole protection and pressure relief functions and can be used for conventional drilling and cableless directional drilling of an outburst coal seam, and if a cable passing pipe and a built-in communication cable thereof are installed in the axis of the inner pipe of the drill rod, the drill rod can also be used for cable passing directional drilling.

The invention discloses a tunnel construction unit workstation, and relates to the technical field of tunnel construction machinery. The tunnel construction unit workstation comprises a portal assembly and an automatic walking assembly driving the portal assembly to move front and back along a tunnel, the portal assembly comprises a portal and auxiliary platforms correspondingly arranged on two sides of the portal, a main platform is arranged at the top of the portal, and an arch frame mechanical arm, a wet spraying mechanical arm and a drilling assembly are fixedly installed on the front portion of the main platform side by side. The arch frame mechanical arm, the wet spraying mechanical arm and the drilling assembly are integrated, vehicle exchange in the working period does not need towait, the circulation time can be shortened, and efficient construction is achieved. By reducing the number of trolleys, the working space can be tidied and reduced, the improvement of the working environment and the improvement of the safety are realized, and the work of deslagging and the like can be smoothly carried out. Drilling assemblies are arranged on the main platform and the auxiliary platforms, the construction requirements of full-section excavation and step-method excavation can be met, the structure is novel, and operation is convenient.

The invention discloses a disintegrating slag breaker of a gasification furnace. The disintegrating slag breaker comprises a spindle rotating relative to a furnace body. A slag breaking seat is fixedly mounted at the upper end of the spindle, inner slag breaking claws are uniformly fixed on the upper circumference of the slag breaking seat, slag collection gaps are reserved among the inner slag breaking claws, outer slag breaking claws arranged above or below the inner slag breaking claws are fixed on the inner wall of the furnace body, and ends of the outer slag breaking claws extend into slag collection passages corresponding to the slag collection gaps. The disintegrating slag breaker of the gasification furnace has the advantages that since the spindle rotates relative to the furnace body, the inner slag breaking claws are driven to rotate relative to the outer slag breaking claws, slags of the furnace can be cut and broken by the inner slag breaking claws and the outer slag breaking claws, blockage of the gasification furnace due to adhesion of ash slags is avoided, smooth slag discharge is realized and the gasification process is stable and continuous.