508results about How to "Less equipment" patented technology

A high efficiency gasification process for converting carbonaceous solids to methane and apparatus for its practice are described. The process includes reacting steam and carbonaceous solids comprising ash in the presence of alkali metal catalyst in a gasification reactor to produce combustible gases and char particles comprising ash and alkali metal catalyst constituents, treating a stream of such char particles in an alkali metal catalyst recovery system to recover the catalyst constituents as alkali metal compounds, and recycling such recovered compounds. Within the alkali metal catalyst recovery system the process includes quenching the stream of char particles with water whereby such particles are cooled and fractured, dissolving soluble alkali metal catalyst constituents from the fractured solids to form a first alkali metal catalyst solution and washed solids, optionally reacting the washed solids in alkaline solution to form a second alkali metal catalyst solution, upgrading said first and optional second alkali solution to recover the alkali metal catalyst constituents as said alkali metal compounds.

Building panels, such as floorboards, provided with a mechanical locking system. The mechanical locking system includes a displacement groove at a first edge of a first floorboard and a tongue groove at a second edge of a second floorboard A tongue is arranged in the displacement groove and is configured to cooperate, in a second position, with the tongue groove for vertical locking of the first and the second edge. The tongue includes, in a first position, an inner element and an outer element. The inner element is removable along the displacement groove, and is configured to cooperate with the outer element to obtain a displacement of the outer element towards the tongue groove and thereby obtain the second position. Said inner element and said outer element vertically overlap each other.

The invention discloses a super-power five-cylinder plunger pump. The super-power five-cylinder plunger pump comprises a power end assembly, a fluid-power end assembly and a reduction box assembly; the power end assembly adopting a sectional type structure design includes a crankshaft box body, a crosshead box body and a space-stop rack, one end of the crosshead box body is connected with the crankshaft box body, and the other end of the crosshead box body is connected with the space-stop rack; the fluid-power end assembly is arranged at one end of the space-stop rack, and the fluid-power endassembly passes through the space-stop rack and the crosshead box body in sequence and is connected with the crankshaft box body through bolts; and the reduction box assembly is connected with the crankshaft box body, a crankshaft in the crankshaft box body is forging alloy steel, the crankshaft includes six shaft necks and five crank threw, each crank throw is arranged between two adjacent shaftnecks, and the distance between the crank threw and the rotating center of the crankshaft is 110mm to 160 mm. The super-power five-cylinder plunger pump has the beneficial effects that the rated inputpower of the super-power five-cylinder plunger pump is 5000 hp, so that the problem that high-power motors cannot be matched with the plunger pumps of corresponding specifications in electric drive fracturing is solved, and the contradictions that the conditions in oil and gas well fields are limited and the matching of fracturing equipment is much is further solved at the same time.

The present invention is a telecommunications network having a hierarchical architecture which reduces the amount of equipment and processing required to recover from network failures. In an exemplary embodiment, the nodes of the network are divided into high level nodes and low level nodes. High granularity traffic is collected, routed and manipulated at high level nodes, but generally passes through low level nodes, which generally lack the capability for routing and manipulating such high granularity traffic. Equipment savings results from low level nodes lacking the capability to manipulate traffic other than traffic relevant to those nodes or nearby nodes. Each high level node pair is connected by at least three node disjoint paths of low level nodes and links. Less protection capacity is needed, as each node disjoint path is expected to handle only a portion of rerouted traffic in the event of a network equipment failure. Recovery is decentralized, and is thus faster, requires less equipment, and is less susceptible to the failure of a centralized controller than with networks using centralized recovery processing.

The present invention is directed to improvements for distributed antenna systems and more particularly to methods and systems for improving uplink communications. In one embodiment, Aggregation Point Noise Blocking provides for blocking or filtering the noise contributed by one or more of the branches coupled to an aggregation point that are not carrying the signal from a particular terminal. Signal activity from a given terminal on a particular branch can be identified and that information can be used to selectively block or filter the signal noise contributed by the other branches to an aggregation point. The selective blocking or filtering can also include an attenuation function to attenuate the signal and provide dynamic range smoothing. In another embodiment the signal can be regenerated to produce a signal that has a restored or very high SNR. An uplink regeneration block can be provided which demodulates the uplink signal to recover the transmitted information and then re-modulates the transmitted information to regenerate a signal at a restored or very high SNR.

Methods and apparatus are provided for mounting one or more glazing panes or insulating glass units into a window sash frame member having spaced side walls joined by an inner facing frame surface with a spacing structure disposed on the frame surface. Glazing panes are placed against strips of adhesive sealant within the window sash frame. Folding glazing beads hingedly attached to the side or inner walls of the frame member are folded against the glazing panes to secure them to the window sash frame member and/or to cover the glazing pane edges.

The invention discloses a low temperature Claus sulfur recovery process. The process mainly comprises a thermal reaction section, a catalytic reaction section and a tail gas incineration section, wherein in a combustion furnace of the thermal reaction section, partial hydrogen sulfide reacts with oxygen to be converted into sulfur dioxide, the hydrogen sulfide and the sulfur dioxide undergo a Claus reaction to generate sulfur, and process gas after sulfur separation enters the catalytic reaction section; in the reactor of each stage of the catalytic reaction section, the hydrogen sulfide and the sulfur dioxide under conventional Claus reaction, catalyst reactivation, sub-dewpoint and sub-solid point low temperature Claus reaction in sequence; after the catalyst reaction section, the tail gas which is subjected to sulfur separation enters the tail gas incineration section, and the tail gas is incinerated and exhausted in the tail gas incineration furnace. The process adopts a lower reaction temperature, contributes to performance of chemical equilibrium towards the direction of sulfur generation, so that conversion rate and recovery rate of sulfur are improved. Moreover, the process has the advantages of simple process flow, relative small equipment and investment, low operation cost and more contribution to environmental protection. The invention also discloses a device for the low temperature Claus sulfur recovery process.

A process for the recovery of gaseous products from the product mixture obtained by contacting a hydrocarbon feed with a catalyst in a fluid catalytic cracking process, wherein the liquid, obtained by separating the top product of main fractionators into gaseous and liquid fraction, when supplied to the absorber has a temperature of between about 8–25 DEG C. This liquid may be pre-saturated with gaseous top product from absorber; or also a high boiling fraction (cat cracker naphtha/light cycle oil) may be first separated from this liquid by distillation.

The invention provides novel aerated composite materials that possess excellent physical and performance characteristics of aerated concretes, and methods of production and uses thereof. These composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption, desirable carbon footprint and minimal environmental impact.

Methods and apparatus are provided for producing and extracting Mo-99 and other radioisotopes from fission products that overcome the drawbacks of previously-known systems, especially the excessive generation of radioactive wastes, by providing gas-phase extraction of fission product radioisotopes from a nuclear fuel target using a mixture including halide and an oxygen-containing species with heat to convert the fission product radioisotopes to gas (e.g., Mo-99 to MoO₂Cl₂ gas). The gaseous species are evacuated to a recovery chamber where the radioisotopes solidify for subsequent processing, while the substantially intact uranium target made available for further irradiation and extraction cycles.

The invention relates to improving the quality of a received downlink signal in a time division multiple access wireless cellular communications network. The method of the invention comprises measuring a signal quality characteristic at a user equipment and comparing this to a threshold to determine it a desired signal quality level exists. It so then a certain level or type of service on the downlink can be effected. It not, the method comprises identifying an interferer signal or signals and removing at least one of such interferer signals by arranging for it to either not be transmitted on the same TDMA timeslot as the downlink signal or to be transmitted at a lower power, for example, in said timeslot.

The invention relates to a soft foundation reinforcing method of the existing railway or highway subgrade construction, which comprises the following steps of: constructing vertical chemical churning piles on the side slope and the slope toe of a subgrade to be reinforced; after the vertical chemical churning piles are cured, drilling a plug hole tilting toward the center line of a track and extending into the soft foundation in the side slope by using a drilling machine; and performing shock tube grouting in the plug hole. A sizing agent in the plug hole permeates towards the periphery of the foundation, the cured sizing agent, the vertical chemical churning piles and the foundation form an integrated reinforcing block, and thus, the reinforcement of the railway or highway subgrade construction is completed. Compared with the traditional single technique, the method has the advantages of no construction transition, no traveling interruption and no reinforcing dead zone by adopting the vertical chemical churning piles together with a shock tube grouting technique. The advantages of both the vertical chemical churning piles and the shock tube grouting technique are fully exerted, and the safety and the quality are controllable.

The present invention is microwave reduction and electric furnace steel-making method and equipment. Certain amount of coal, iron ore and flux and mixed, set on microwave heating bed and heated to 800-1300 deg.c for 10-20 min to produce reduced iron material; and the iron material is heated in an electric arc furnace to 1400-1600 deg.c for 1-2 hr and slag-steel separated. The equipment includes microwave heating movable bed with refractory inner wall, protecting outer metal wall, microwave heater between the inner wall and the outer wall, air cooling circulator between the two walls, mixing feeder over the movable bed and high temperature discharger. The present invention has less investment, simple process, high efficiency, low power consumption and no waste exhaust and is suitable for production in different scale.

The invention provides a preparation method of a lamellar two-dimensional material MXene. The preparation method comprises the following steps: S100: preparing a ternary material Mn+1AXn by adopting a normal-pressure sintering technology, wherein M is transition metal, A is a third or fourth main group element, X is an element C or N and n is 1, 2 or 3; S200: crushing the ternary material Mn+1AXn which is obtained by normal-pressure sintering into powder; S300: carrying out etching treatment on the powder, wherein the time for the etching treatment is 8h to 50h; S400: carrying out washing treatment and drying treatment on a powder mixed solution subjected to the etching treatment to obtain the lamellar two-dimensional material MXene. According to the preparation method provided by the invention, a pressurizing flow in a high-temperature process is replaced through a separation and pressurization and heating manner, so that the threshold and the complexity of preparing a precursor are reduced. Furthermore, equipment used for normal-pressure sintering is relatively low, so that the preparation method is especially suitable for industrial production.

The invention discloses a soft and weak wall rock tunnel advance reinforced support construction method. When a pipe roof advance support construction is carried out on one segment of the constructed tunnel, the construction method comprises the following steps: (1) support arch and guide pipe construction, wherein a plurality of guide tubes for carrying out guiding on a plurality of pipe roof pipes are arranged on a support arch; each pipe roof pipe comprises a pipe body and a drill bit; each pipe body is formed by splicing a plurality of pipe joints; each drill bit is coaxially arranged at the front end of the pipe body; the pipe joints are spiral steel pipes; the pipe roof pipes are first pipe roof pipes or second pipe roof pipes; and the first pipe roof pipes and the second pipe roof pipes are staggered; (2) drilling machine and slip casting machine installation and emplacement; (3) pipe roof advance support construction, which comprises the following processes: first pipe roof pipe drilling and synchronous grouting construction, final hole grouting construction of the first pipe roof pipes, second pipe roof pipe drilling and synchronous grouting construction and final hole grouting construction of the second pipe roof pipes. The method disclosed by the invention is simple in steps, reasonable in design, simple and convenient to construct and good in support effect; and the soft and weak wall rock tunnel advance reinforced support process can be simply, conveniently and quickly finished.

The invention discloses a simple, fast and sensitive method for detecting a plasticizer (phthalate ester) in plastic, which is based on ion mobility spectrometry and detects phthalate ester in an extracting solution using a fast ion mobility spectrometry detector in combination with a simple organic solvent extraction pretreatment method. The measurement method is simple, fast and reliable. The analysis time of the method is only 0.5min, the requirement on a sample pretreatment is low, the detection time is short, the sensitivity is high, and the detection limit can be up to 1ppb.