64results about How to "Facilitate project promotion" patented technology

The invention provides an iron and steel complex comprehensive wastewater treatment device and process. The device comprises a coagulation unit, a biochemical treatment unit, a filter unit and an ozone catalytic oxidation unit. The biochemical treatment unit comprises a nitrification biofilter and a denitrification biofilter. The coagulation unit, the denitrification biofilter, the nitrification biofilter, the filter unit and the ozone catalytic oxidation unit are connected in order; or, the coagulation unit, the ozone catalytic oxidation unit, the denitrification biofilter, the nitrification biofilter and the filter unit are connected in order; or, the coagulation unit, the nitrification biofilter, the denitrification biofilter, the filter unit and the ozone catalytic oxidation unit are connected in order. The device can remove COD and ammonia nitrogen from wastewater synchronously at low cost, has the advantages of high treatment efficiency, good stability, strong impact resistance ability and simple operation, can flexibly selects the connection form of the treatment units according to the water quality condition, can realize the whole course flow by gravity, lowers energy consumption, and is conducive to project promotion.

The invention relates to an anti-interference PID (proportion integration differentiation) controller for an industrial unstable time-lag process and a design method thereof. The controller consists of a set value tracking controller, a disturbance resisting controller, a filter, a controlled process identifying model and three signal mixers. The design method of the anti-interference PID controller for the industrial unstable time-lag process provided by the invention can improve the anti-interference capability of a system to a great extent, and compared with the other design methods, the control system is simple in structure, the controller is standard in form, industrial realization is easy, respective performance is adjusted through one-parameter, the operation is convenient and visual, the controlling effect is stable, and better system performance can be realized. The industrial control system can be widely used for controlling the production process of various enterprises in the industries, such as energy, metallurgy, petrifaction, light industry, medicine and textile manufacturing.

The invention discloses a rotating machinery fault qualitative diagnosis method based on a convolutional neural network, belonging to the technical field of machinery fault diagnosis. The diagnosis method comprises the steps of extracting enough sample points from rotating machinery vibration data, building a convolutional neural network model, training the convolutional neural network model, randomly intercepting multiple sample points in a test, classifying the test sample points by using the trained convolutional neural network, and completing the qualitative diagnosis of a rotating machinery fault. The artificial extraction of features is needed in a traditional fault qualitative diagnosis method, the accuracy is low, the generalization performance is poor, the method is complex and difficult to understand, and the engineering popularization of the method is difficult. According to the rotating machinery fault qualitative diagnosis method based on the convolutional neural network, the features can be automatically extracted, the accuracy is high, the generalization performance is high, the method is simple and is easy to understand, and the engineering popularization of the method is easy.

The invention discloses a slider sliding type shock insulation pedestal and a shock insulation method thereof. The shock insulation pedestal comprises a supporting seat and a base fixed on the ground or an exhibition stand, wherein a sliding rail I and a sliding rail II are arranged on the base in parallel; the shock insulation pedestal also comprises a sliding rail III; a slider I matched with the sliding rail I in a sliding manner is arranged at one end of the sliding rail III; a slider II matched with the sliding rail II in a sliding manner is arranged at the other end of the sliding rail III; a slider III fixedly connected with the supporting seat is arranged at the middle part of the sliding rail III; and the slider III is connected with the base by a return mechanism. When the vibration from the ground is transmitted to the supporting seat, the vibration can be eliminated, and exhibits on the supporting seat are kept to be stable and cannot fall off to cause damage, so that cultural relics can be well protected. The slider sliding type shock insulation pedestal is particularly suitable for protecting fragile objects, and the vibration-proof safety of the cultural relics is improved.

The invention relates to a method for preparing polyferric chloride by using wastewater produced in pickling of steel with hydrochloric acid. The method comprises the following steps: pretreating hydrochloric acid pickling wastewater, and quantitatively feeding the filtered hydrochloric acid pickling wastewater into a reaction kettle; adding a phosphate buffer in batches, wherein 0.03 to 0.04 tonof the phosphate buffer is added for per ton of the concentrated hydrochloric acid pickling wastewater; carrying out sufficient stirring to completely dissolve the phosphate buffer; and adding an oxidizing agent under the conditions of stirring and constant-temperature heating for an oxidative polymerization reaction, wherein the concentration of the oxidizing agent is 120-150 mg/L, 0.7 to 1.1 kg/h of the oxidizing agent is added for per ton of the concentrated hydrochloric acid pickling wastewater, the rotating speed of an agitator in a reaction vessel is 200 to 400 rpm, a reaction temperature is 40 to 60 DEG C, and after sufficient reaction for 14 to 26 h, the polyferric chloride is obtained. The method has the following advantages: process flow is simple; only one reaction kettle is needed in a core production procedure; and the oxidative polymerization reaction is implemented in the reaction kettle.

The invention discloses a regulation method for high-dryness dehydration of sludge. The method comprises the following steps: sludge in a sludge digestion tank is conveyed to a sludge regulation pool through the gravity action or by a conveying pump, then a ferric chloride solution and quick lime are added into the regulation pool by virtue of a chemicals feeding pump, a mixer is used for mixing through sensing the liquid level, and sludge is fed into a plate and frame filter press from the regulation pool after the regulation is over. The method is a regulation method, based on which sludge and conditioners are mixed uniformly and the sludge mechanical dehydration performance is remarkably improved.

The invention discloses a steel-rubber concrete combined bridge beam slab, which comprises an upper prefabricated slab and a lower I-shaped steel girder, the upper prefabricated slab is prepared by mixing concrete and rubber powder, and the upper prefabricated slab There is an inwardly sunken longitudinal rib-shaped groove at the bottom; a threaded steel plate is welded on the top of the lower I-shaped steel beam, and the longitudinal rib-shaped groove fits with the threaded steel plate, and the Rubber concrete grout is poured into the space between the above-mentioned longitudinal rib-shaped groove and the threaded steel plate. The invention not only does not need to provide shear connectors, effectively avoids the fatigue fracture of the connector itself, but also has a series of advantages such as fast and convenient construction, tight connection between concrete slab and steel beam, and reasonable section setting.

The invention discloses a high-heat-conductivity ground temperature energy heat exchange tunnel system. The system comprises a tunnel second lining located on the upper portion and a tunnel inverted arch located on the lower portion, wherein the tunnel second lining and the tunnel inverted arch cooperate with each other. A patch type prefabricated geotechnical cloth bag heat exchange layer is paved on the upper surface of the tunnel inverted arch and comprises a geotechnical cloth bag, a heat exchange pipe and high-heat-conductivity filler, wherein the heat exchange pipe and the high-heat-conductivity filler are located in the geotechnical cloth bag. A lower waterproof layer is paved on the patch type prefabricated geotechnical cloth bag heat exchange layer. A phase change energy storage layer is arranged on the lower waterproof layer in a filling manner. A spread-out face is formed on the upper surface of the phase change energy storage layer. An upper waterproof layer is paved on theupper portion of the spread-out face. A heat insulation layer is arranged on the upper waterproof layer. A pavement layer located in the middle and a water pipe trench located on the side are arranged on the upper portion of the heat insulation layer. A water supply pipe and a water return pipe are arranged in the water pipe trench. The water supply pipe communicates with a water inlet of the heat exchange pipe, and the water return pipe communicates with a water outlet of the heat exchange pipe. The system has the advantages of being simple in operation, high in engineering applicability andlow in heat storage heat response.

The invention relates to an automated gear case fault diagnosis method based on a neural network and a characteristic frequency band. Gear fault diagnosis comprises: S1, collecting a vibration acceleration signal of a sample gear case, and constructing a signal library; S2, performing Fourier transformation on the vibration acceleration signal to obtain a corresponding amplitude spectrum; S3, extracting several groups of frequency band samples from the amplitude spectrum, marking a gear status label of each sample, and building a gear fault frequency band library; S4, training a gear fault diagnosis neural network by using the gear fault frequency band library; S5, extracting an amplitude spectrum characteristic frequency band of a gear in a to-be-diagnosed gear case; and S6, inputting theamplitude spectrum characteristic frequency band to the gear fault diagnosis neural network to diagnose a fault probability of the gear. According to the method, an amplitude spectrum of a gear casevibration signal on a characteristic frequency band is used as a characteristic signal to separately estimate a fault status of a gear, so that a current fault can be efficiently and automatically diagnosed, persons of ordinary skill are guided to repair and maintain the gear case in time, and working efficiency is obviously improved.

The invention relates to an orthogonal glued wood board reinforced by a nanocomposite and a manufacture method thereof. The orthogonal glued wood board reinforced by the nanocomposite comprises firstboards, second boards and structure glue layers, wherein each first board is formed by performing soaking treatment on a wood through a nanocomposite solution and using ultrasonic waves for uniformlydispersing the nanocomposite into the microstructure of the wood, the first boards and the second boards are alternately overlapped and bonded through the structure glue layers, the top layer and thebottom layer are two layers of the second boards, and grain directions of each first board and each second board are perpendicular to each other. The orthogonal glued wood board reinforced by the nanocomposite fully uses a connection function of the nanocomposite on the microstructure of the wood, significantly improves roll shearing intensity and cross grain tensile strength of the wood, is simple in structure, convenient to construct and convenient to popularize to engineering, substantially improves bending strength and shearing resistance of a wood floor, and is beneficial to popularization of a wood building.

The invention discloses a phase change energy pile, a ground source heat pump heat exchange system and a manufacturing method. The phase change energy pile comprises a pile body, a reinforcing cage, aheat exchange tube, concrete and a plurality of steel balls, wherein the reinforcing cage, the heat exchange tube, the concrete and the plurality of steel balls are arranged in the pile body, the heat exchange tube is fixed to the inner side of the reinforcing cage, the concrete is filled in gaps among the pile body, the reinforcing cage and the heat exchange tube, the steel balls are uniformly distributed in the concrete, phase change materials are arranged in the steel balls in a sealing mode, and a heat exchange carrier is arranged in the heat exchange tube. According to the phase change energy pile, the ground source heat pump heat exchange system and the manufacturing method, in the heat exchange tube heat carrying fluid circulation process, more energy is absorbed by and stored in the phase change materials, and meanwhile the thermal conductivity of the pile body is improved by the steel balls, so that the heat exchange efficiency of the phase change energy pile is greatly improved, the temperature change inside the pile body is uniform, the temperature difference stress is reduced, and the service life of the phase change energy pile is prolonged; and steel ball packages are adopted as coarse aggregate for pile body pouring, so that the leakage of the phase change materials can be prevented, the rigidity of the pile body can be meanwhile ensured, and the bearing capacity requirement is met.