414results about How to "Guarantee production safety" patented technology

The invention relates to wind pressure air drilling equipment in a downhole soft outbursting coal bed and a process matched therewith. At present, as the consequent layer drilling characterized by high construction speed, low cost and high gas extraction efficiency becomes the primary option for coal control and gas control in coal mines, for soft outbursting coal beds, the gas extraction efficiency is directly dependant upon the pore-forming rate of the consequent layer drilling. The equipment comprises a boring machine, an air compressor, an orifice dust collection and dust removal device, a high-strength large through-hole drill rod, a drill bit with an inner core which can automatically fall off, and an antistatic explosion-protection PVC sieve tube; the boring machine which has large power and large torque supplies power to drilling construction; the orifice dust collection and dust removal device collects and eliminates slack carried out by wind from the orifice during drilling; and the antistatic explosion-protection PVC sieve tube is transferred from the interior of the high-strength large through-hole drill rod to the bottom of the orifice without lifting a drill on the completion of drilling, and at last remains in the orifice, thereby ensuring the completeness of drilling. The equipment and the process matched therewith provided by the invention has the advantages of increasing the pore-forming rate of the consequent layer drilling in soft outbursting coal beds, improving the effect of gas extraction, improving the working atmosphere of downhole air drilling, and protecting the production safety of outbursting coal mines.

The invention discloses aqueous chromium-free zinc and aluminum coating. The coating comprises an agent A and an agent B, which are mixed and blended uniformly when the coating is used, wherein based on the total weight, which is 100 percent, of the agent A and the agent B, the agent A comprises 1 to 5 weight percent of emulsifier, 10 to 25 weight percent of ethanol, 0 to 5 weight percent of deforming agent, 0 to 0.3 weight percent of thickener and 25 to 35 weight percent of metal zinc aluminum powder or zinc aluminum paste; and the agent B comprises 20 to 40 weight percent of deionized water, and 10 to 20 weight percent of silane coupling agent. The aqueous chromium-free zinc and aluminum coating does not contain hexavalent chromium, lead, mercury and cadmium heavy metal ion compounds or toxic organic solvents such as benzene and dimethylbenzene. The curing temperature of the coating is 250 to 300 DEG C, and the curing time of the coating is 20 minutes which is much shorter. The invention also provides the preparation method and the coating method of the aqueous chromium-free zinc and aluminum coating.

A design and control method for the optimizing control system of intermediate rolling mill and heating furnace in order to improve the heating quality of billet in the heating furnace and save energy features that the heating furnace and intermediate rolling mill constitute a closed loop system, the information (rolling force, temp, etc) is fed back to heating furnace for dynamically changing the heating temp, and the optimizing control strategy and control algorithm are used in the billet heating process.

The present invention discloses a device for automatically testing a web page, including the following components: a testing and processing apparatus to test and process a web page; a data storage apparatus used to store information of tested web pages, tested cases and data of test results; a testing tool to browse web pages, parse contents, control execution processes and to obtain error information; wherein the data storage apparatus and the testing tool are both connected with the testing and processing apparatus, and the testing tool is connected with the detected web system. The invention also discloses a method for automatically testing a web page. With the invention, the testing efficiency of web pages is greatly enhanced through parsing input domain objects of web pages and employing a testing method based on objects of web pages, and the invention will effectively improve software quality, guarantee stability and security of enterprise production.

The invention discloses a control method of unattended operation for a coal mine comprehensive mechanized mining face. The control method is realized on the basis of a centralized control function of an end head controller, a double RS 485 bus communication mode is adopted by the end head controller, one bus is used for polling a working condition parameter of a working face hydraulic support and sending the working condition parameter to a central explosion proof computer; the other bus is used for carrying out centralized-control, determining a running position of a coal cutter through polling the state parameter of the hydraulic support, sending a control command to an inter-frame controller through the buses, controlling the movement of the hydraulic support and matching the marching coal cutter to carry out automated operation, the end head controller forms a bent section through a control support push sliding, so as to assist the coal cutter to realize the technology of beveling, cutting feed and triangular coal slicing. According to the control method of the unattended operation for the coal mine mechanized mining face, the unattended operation automatic production of the working face is realized, the degree of automation is high, the communication is stable and reliable, the mining efficiency is improved, the safety production is guaranteed, the labor intensity is reduced and the range of application is wide.

The invention provides a lithium-supplement negative electrode plate and a fabrication method thereof. The lithium-supplement negative electrode plate comprises a pole plate and a lithium-supplement coating layer, wherein the lithium-supplement coating layer is coated at an outer side of the pole plate and comprises metal lithium powder and ceramic powder and/or inorganic salt powder. The preparation method comprises the steps of mixing the metal lithium powder and the ceramic powder and/or the inorganic salt powder to obtain mixed powder under a protection atmosphere, mixing the mixed powder,a binding agent and an organic solvent to obtain paste, and coating the paste onto a surface of a negative electrode plate to obtain the lithium-supplement negative electrode plate. The lithium supplement method is high-efficiency and low in equipment requirement and is simple to operate, and lithium supplement quantity can be accurately controlled.

The invention provides a field apparatus inspection method and system. The method is characterized in that identification cards which are internally provided with an identification number respectively are arranged on the field apparatus regularly; inspectors can acquire the numbers of the identification cards and an apparatus name by swiping an information collector, and then the operating parameters of the field apparatus are input into the information collector through a keyboard; data collected by the information collector is received by a front-end inspection device; the data is sent to an inspection server through Ethernet; the inspection server analyzes and judges whether the identification cards are swiped regularly, the data is collected normally, and the regular collection is carried out and a statistical statement is produced according to the pre-stored information, and provides alarm information; and a terminal server accesses to the inspection server to acquire the statistical statement through a B/S architecture explorer.. The method and system has the advantages that the inspectors inspecting the field apparatus of an enterprise can be effectively supervised, the working quality of the inspectors can be quantitatively and qualitatively evaluated, the operating parameters of the inspection apparatus can be judged in real time, the informationzation management level of the enterprise is improved, and the production requirements of the enterprise are met.

The invention relates to a method for manufacturing a beveled ball valve, and relates to a process for manufacturing a ball valve. The method is characterized by comprising the following steps: 1, cutting out a round steel bar according to the specification of a valve body of the beveled ball valve; 2, manufacturing a blank of the valve body of the beveled ball valve; 3, lathing a middle way; 4, milling the upper edge and lower edge of the middle way; 5, milling a sealing surface of the middle way; and 6, drilling bolt holes. In the method for manufacturing the beveled ball valve, the beveledball valve is machined by a forging method through a lathe and a milling machine, and the valve body is high in density and has no air holes, is suitable to be used in pipelines with high pressure rating in industry, and guarantees personal safety and production safety.

The invention relates to the technical field of pipe production equipment and aims to provide automatic articulated joint assembling equipment which lowers the labor intensity and improves assembling efficiency. The automatic articulated joint assembling equipment comprises a machine frame, wherein the machine frame is provided with a rotary disc, manipulators and a material storage cylinder; the rotary disc is provided with a first workstation, a second workstation and a third workstation, and the manipulators correspondingly comprise a first manipulator, a second manipulator and a third manipulator; the material storage cylinder is arranged on one side of the third workstation; a main body is filled in the workstation by the first manipulator; the second manipulator presses a fixing side into the main body in the second workstation; a sealing ring is automatically pressed in the material storage cylinder; the hird manipulator presses the sealing ring into a screw side and screws the screw side into the main body in the third workstation. The automatic articulated joint assembling equipment can achieve automatic assembling of articulated joints, lowers labor intensity, saves time and labor, reduces labor cost, and ensures production safety, is simple and convenient to operate and improves assembling efficiency. The invention further provides an automatic articulated joint assembling method.

The invention relates to a rice seed dressing agent composition used for preventing and treating black-streaked dwarf disease and its preparation method. The composition is prepared from effective components, a microelement fertilizer regulator, a solvent, a carrier, a surfactant, and other additives, and can be prepared into suspending agents, water dispersible granules or wettable powder. The effective components include an insecticide and an antiviral agent. The composition can improve seed germination rate, ensure whole, strong and neat seedlings, and can promote growth and development ofthe seedlings and increase crop yield. The rice seeds that undergo seed dressing treatment can substantially improve the autoimmune system of crops, and can consciously resist disease attack. When effected by the agent, pests can take migratory flight or stop causing harm. The rice seed dressing agent composition of the invention especially have obvious antifeeding and repelling effects on Sogatella furcifera, Nilaparvata lugens, Oulema oryzae, Stenchaetothrips biformis, naranga aenescens moore and other pests of rice, reduce harm and virus spread, decrease or alleviate the occurrence of riceblack-streaked dwarf disease, thus having very obvious social and ecological benefits.

The invention relates to a method for synthesizing Varenicline intermediate 2, 3, 4, 5-tetralin-1, 5-methylene-hydrogen-benzoazepine. The method includes the following steps: under the action of catalyst, mixing amyl nitrite with o-aminobenzoic acid solution to generate diazonium salt, then mixing the diazonium salt with cyclopentadiene, and heating to react to generate compound 1; feeding ozone into the solution of compound 1, after complete conversion, adding reducing agent to generate compound 2, then dripping the compound 2 to the mixed solution of triacetoxy sodium borohydride and benzylamine to generate compound 3 by loop closing; and hydrogenating the compound 3 under the action of palladium and carbon for debenzylation and reduction to obtain M intermediate 2, 3, 4, 5-tetralin-1, 5-methylene-hydrogen-benzoazepine. The method has the advantages of greatly simplifying the method for preparing Varenicline intermediate, being simple in production process and safe in operation, well ensuring no harm to the environment and control on production cost, increasing yield and being capable of becoming a process in great industrial production.

The invention discloses wet type grinding equipment for an automatic robot. The wet type grinding equipment for the automatic robot comprises a grinding machine table body, a robot base, a robot body, a grinding head fixing mechanism, a grinding fixing fixture, an automatic feeding mechanism, an abrasive paper loading mechanism, an automatic abrasive paper tearing mechanism, an automatic water spraying mechanism, a human-computer interface and a three-colour audible and visual alarm; the robot base is tightly pressed against the rear side of the grinding machine table body; the robot body is placed on the robot base; the grinding head fixing mechanism is mounted at the working end part of the robot body; a machine table is arranged at the lower part of the grinding machine table body; a machine case is arranged at the upper part of the grinding machine table body; the grinding fixing fixture is arranged in the central position of the machine table; the automatic feeding mechanism and the automatic abrasive paper tearing mechanism are arranged on one side of the grinding fixing fixture; the abrasive paper loading mechanism is arranged above the automatic abrasive paper tearing mechanism; the automatic water spraying mechanism is arranged on the rear side of the grinding fixing fixture; the human-computer interface is mounted on the outer wall of the front side of the machine chassis; the three-colour audible and visual alarm is mounted at the top of the machine case. The equipment can protect the environment, and can improve the production efficiency.

The invention relates to multi-axis rotating production equipment used for part assembling of a reduction gear. The multi-axis rotating production equipment comprises a working bench, a hydraulic turnover mechanism, a hydraulic rotating mechanism, a hydraulic station and a hydraulic hooking pin assembly which are connected, wherein the working bench surface of the working bench is connected with a slewing bearing of the hydraulic turnover mechanism, the hydraulic turnover mechanism can enable a turnover bench surface to be connected with a slewing bearing of the hydraulic rotating mechanism through pin hole positioning and bolted connection, the hydraulic turnover mechanism can enable a turnover bench surface to be connected with a rotary joint in the hydraulic rotating mechanism through the bolted connection and enable the rotary joint to be positioned on the lower surface of the turnover bench surface, the hydraulic rotating mechanism can enable a pin cylinder installation base and a pin slot to be connected with the turnover bench surface in the hydraulic turnover mechanism through the bolted connection and enable the pin cylinder installation base and the pin slot to be positioned on the upper surface of the turnover bench surface, and the hydraulic hooking pin assembly can enable a hooking pin base to be connected with the working bench surface of the working bench through the bolted connection and enable the hooking pin base to be vertically positioned on the upper surface of the working bench surface. The multi-axis rotating production equipment has the advantages of reasonability in structural design, simplicity in processing, safety and reliability in performance, energy conservation and high efficiency.

The invention discloses a three-dimensional roof controlling method for fully mechanized caving of a steeply inclined and extremely thick coal seam. The steeply inclined and extremely thick coal seam is mined in multiple sections from back to front along the trend of the coal same, each of the mining sections is cut into multiple sub-layers from top to bottom, and the uppermost sub-layer is a top sub-layer; when any mining section is mined, the multiple sub-layers of the mining section are respectively minted from top to bottom, and the process comprises the following steps: I, mining the top sub-layer: comprising the steps of tunnel construction, extraction of toxic and harmful gas in a pre-denotation roadway, advanced pre-blasting of top coal, drainage to wet the top coal, coal mining and nitrogen injection behind a working face and ground backfill of a subsidence area; II, mining the next sub-layer; and III, repeating the step II once or multiple times till the mining processes of all sub-layers of the mining section are completed. The method disclosed by the invention is simple in step, reasonable in design, convenient to implement and good in using effect, and various protective measures are combined in use, so that the potential safety hazards such as roof caving, gob fire and the like can be effectively eliminated.

The invention discloses a reagent and a detection method for detecting porcine circovirus type 2 and an application. The reagent for detecting the porcine circovirus type consists of a primer pair for conducting amplification detection on recombinant polymerase of the porcine circovirus type 2 and a probe, wherein the sequence of a forward primer of the primer pair is shown as Seq ID No.1, the sequence of a reverse primer of the primer pair is shown as Seq ID No.2 and the sequence of the probe is shown as Seq ID No.3; the 31st base of the probe is marked by BHQ1, the 33rd base is substituted by tetrahydrofuran, the 35th base is marked by FAM and the 3' terminal of the probe is modified by a phosphate group. According to the reagent for detecting the porcine circovirus type 2, a novel detecting scheme and a novel detecting approach are provided for the detection of the porcine circovirus type 2. The porcine circovirus type 2 RPA detection method based on the reagent provided by the invention is rapid and accurate, and low in requirement on hardware equipment; and the method is applicable to on-site rapid detection and is especially suitable for such departments as inspection and quarantine and the like.

The invention discloses a fault detection method, device and system for a communication line. The method comprises the steps: adopting a target test mode to test a communication line, and obtaining atest result, wherein the target test mode comprises at least one of roll call test, period test, optical power test, fault trigger test and external equipment alarm linkage test; determining fault positioning information in the test result; and determining corresponding early warning information based on the fault positioning information. The technical problems that in the prior art, faults of a communication line cannot be accurately and effectively detected, and production safety and stable operation of a power system are affected are solved.

The invention relates to the field of mariculture, in particular to an unattended multifunctional underwater robot for a deep sea net cage. The robot comprises a robot body, a brush type net cage cleaning system, a dead fish collecting system and a net cage broken hole repairing system; the robot body comprises a robot body shell, a vision system, a robot movement system and a control system; andthe vision system, the robot movement system, the control system and the net cage broken hole repairing system are all arranged on the robot body shell. The robot is used for maintenance and broken hole repair of deep sea net cages, cleaning attachments on the net cages, monitoring the growth state and living environment of cultured organisms in the net cages, and catching and cleaning diseased and dead cultured organisms in the net cages.