64results about How to "Improve safety production factor" patented technology

The invention relates to a method for integrated comprehensive management of gas in a low-permeability single coal bed, which can effectively solve the problem of comprehensive management and utilization of the gas. A technical scheme of the method comprises the following steps of: firstly, drilling holes, wherein a high-torque drilling machine and a rifle or a trihedral drill stem are used for solving the phenomenon of clamping the drill stem caused by collapsing and jetting of the holes in the hole drilling process; and then, performing hydraulic fracturing permeability improvement on the coal body, drilling holes for pre-split blasting, performing gas drainage, and recycling the drained gas, thereby implementing the integrated management of the gas. With the method provided by the invention, the permeability of the coal body is improved, a pre-draining rate of the gas is improved, and the drained gas is recycled, so that the drilled holes are radically prevented from being blocked in the construction process, the problem of difficulties in draining the gas in the low-permeability coal bed with a drilling tool having insufficient capability in the drilling construction is solved, consequently, outburst risk of the coal and the gas is reduced, outburst accidents of the coal and the gas are reduced and even avoided, and mine production safety and lives of coal mine workers are ensured, so that the method brings great economic and social benefits.

The invention discloses an automatic combination processing production line of double-shaft drilling machines. The automatic combination processing production line of the double-shaft drilling machines comprises a plurality of double-shaft drilling machines, every two double-shaft drilling machines are connected through a transferring mechanism and a mechanical arm mechanism, a transverse feed mechanism is arranged on each double-shaft drilling machine, the mechanical arm mechanisms are connected with the transverse feed mechanisms, a vibrating type feed plate assembly is arranged on one side of the first double-shaft drilling machine, and a blanking mechanism is arranged on one side of the last double-shaft drilling machine. The production line is formed by conveying automatic feeding and blanking to the double-shaft drilling machines through a transferring mechanisms to carry out processing and combination in three different directions, multiple devices can be controlled by one person, and the automatic combination processing production line of the double-shaft drilling machines has the advantages of being high in producing rate, high in product quality, low in composite cost and the like, and is suitable for processing parts of multiple types on a large scale.

The invention provides an oil well casing gas collecting device. An oil pumping pipe, an oil pumping rod and a casing are arranged in an oil well, the oil pumping rod is connected onto an oil pumping unit, and the oil pumping unit pumps crude oil from the oil pumping pipe and transports the crude oil to an oil transportation pipe. The device comprises a casing connecting pipe, a one-way valve A, a boosting pump, a one-way valve B and an oil pipe connecting pipe. The boosting pump includes a connecting rod, the upper end of the connecting is fixedly connected with a pressure arm, the upper portion of the oil pumping rod is fixedly connected with a pressure button, and the pressure button is located above the pressure arm. When the boosting pump is installed, the connecting rod is parallel to the oil pumping rod, and the pressure arm is intersected with the connecting rod but is not connected with the connecting rod. When the oil pumping rod is lifted up under the driving of the oil pumping unit, casing gas drives a piston, the connecting rod and the pressure arm to move upward under the action of self pressure. When the oil pumping rod moves downward under the action of self gravity, the pressure button presses the pressure arm to drive the connecting rod and the piston to move downward, and compressed casing gas in a compression cylinder enters the oil transportation pipe. By means of the oil well casing gas collecting device, a series of problems including difficulty in traditional oil well casing gas recovering, energy waste, environment pollution, safety hazard and the like are solved. Therefore, the oil well casing gas collecting device has obvious economic benefit and environmental-protection benefit.

The invention discloses a hand-operated expansion mechanism for an unreeling machine for a stainless steel strip coil. The mechanism comprises a transmission shaft, a sliding sleeve and a circular arc plate, wherein the sliding sleeve is arranged on the transmission shaft in a sliding manner; a round plate sliding block is arranged at one end of the transmission shaft; a telescopic nut is arranged at the other end of the transmission shaft; the circular arc plate is arranged on the side surface of the round plate sliding block in a sliding manner; a plane thrust ball bearing is arranged between the telescopic nut and the sliding sleeve; a sliding block expansion mechanism is arranged between the sliding sleeve and the circular arc plate; a lower sliding block and the sliding sleeve, an upper sliding block and the circular arc plate are connected through self-locking bolts. The mechanism has the advantages that diameters of a roll head can be adjusted quickly and accurately through the telescopic nut, so as to be suitable for stainless steel strip coils of different specifications; the mechanism is high in universality, simple to operate, and low in labor intensity; the stainless steel strip coil is in stable operation without retraction, so that the safety production ratio is increased greatly.

The invention discloses an ultra-thin float glass production line tin bath protective gas intelligent control system. intelligent control system comprises a hydrogen supply pipeline, an oxygen supply pipe and a mixing gas loop; a pressure transmitter, a temperature sensor, a flow transmitter, an electric regulating valve, and a pneumatic intercepting valve are respectively arranged on the hydrogen supply pipeline and the oxygen supply pipeline in order, a gas purity analyzer is arranged in the mixing gas loop; the pressure transmitter, the temperature sensor, the flow transmitter, the electric regulating valve, and the pneumatic intercepting valve and the gas purity analyzer are respectively connected with a PLC controller, and a DCS controller is connected with the PLC controller. According to the invention, the gas purity analyzer is used for accurately analyzing the hydrogen content, safety production coefficient is increased, and the gas flow entering into the tin bath can be accurately controlled through control of PID.

The invention provides a synthesis method of a side chain H of a meropenem, which is characterized in that a new radical is introduced respectively for three functional groups of 4R hydroxy L hydroxyproline and a certain spatial configuration is kept. The synthesis method for the side chain H of a meropenem has the advantages of moderate process conditions, stable product quality, and high yield, which is applicable to the industrial production on a large scale.

An automatic cleaning device for the inner wall of a porcelain bottle of a high-voltage circuit breaker comprises a cleaning mechanism, a rotation control mechanism and a horizontal-movement control mechanism. The rotation control mechanism is used for controlling the cleaning mechanism to rotate, and the horizontal-movement control mechanism is used for controlling the cleaning mechanism to move horizontally. The cleaning mechanism comprises a hollow main shaft, a main slider, an auxiliary slider and a drawing rod. The front end of the hollow main shaft is connected with one end of a sliding rod, the auxiliary slider is arranged at the other end of the sliding rod, the main slider is arranged on the hollow main shaft, and the main slider is connected with the auxiliary slider through a connection rod. The end, far from the hollow main shaft, of the auxiliary slider is provided with a wiping plate used for cleaning the inner wall of the porcelain bottle of the high-voltage circuit breaker. The hollow main shaft is sleeved with a spring. The drawing rod and the hollow main shaft form a front-back moving pair. The rear end of the drawing rod is connected with a telescopic control mechanism enabling the drawing rod to move back and forth. The automatic cleaning device is safe, effective, high in work efficiency and low in cost.

The invention provides a suspension type spot welder with a protection plate. The suspension type spot welder comprises a spot welder, wherein the spot welder comprises a workbench, a spot welder bracket, an upper electrode, a lower electrode, an upper protection cover and a lower protection cover, wherein the spot welder bracket comprises a support rod, a T-shaped support rod and a connection rod; a protection plate is mounted at the upper end of the workbench; an observation window is formed in the protection plate. Compared with the prior art, the suspension type spot welder with the protection plate has the beneficial effects that the upper protection cover and the lower protection cover are closed when not working, thereby preventing the dust from entering the upper electrode and the lower electrode and avoiding the danger caused by the dust in the spot welding process; a welding part is arranged at the upper end of the lower electrode and is positioned when working; a telescopic hydraulic rod is controlled to rise and fall, thereby driving the upper electrode to weld the welding part; through the protection plate on the workbench, the harm to workers during spot welding is reduced. The suspension type spot welder with the protection plate is simple in structure, convenient to operate and accurate in spot welding; the safety coefficient of production is increased.

The invention relates to a steam stripping agent system for removing a solvent in halogenated butyl rubber, and belongs to the technical field of petroleum chemical engineering. The steam stripping agent system comprises a steam stripping agent preparation tank, a steam stripping agent buffer tank, a steam stripping agent conveying pump, a halogenation flash tank and an air cooler, wherein the steam stripping agent preparation tank is communicated with the steam stripping agent buffer tank through a tank communication line; the steam stripping agent buffer tank is communicated with the steam stripping agent conveying pump through a tank-pump communicating line; the steam stripping agent conveying pump is communicated with the halogenation flash tank through a second material inlet pipe; the halogenation flash tank is communicated with the air cooler through a vapor phase conveying pipe. By adopting the technique, the steam stripping agent system has the advantages that the amount of residual solvent carried in rubber particles is reduced, the influence to the environment by the exhausted solvent gas in the post-treatment procedure is reduced, the safety production coefficient is improved, and the wall-hanging condition of rubber liquid in the halogenation flash tank is relieved; the purposes of improving the operation property of the device and the product property, decreasingmaterial consumption and reducing pollution to environment are realized.

The invention discloses a preparation method of 3-substituted phenyl-5-hydroxymethyloxazolidine-2-ketone. The preparation method comprises the following steps: carrying out condensation reaction on substituted aniline which is used as a starting material and 3-sustituted-1,2-propanediol so as to synthesize an intermediate (R)-(+)-3-substituted phenylamino-1,2-propanediol; and preparing 3-substituted phenyl-5-hydroxymethyloxazolidine-2-ketone through two-step reaction, wherein the obtained product 3-substituted phenyl-5-hydroxymethyloxazolidine-2-ketone is an important intermediate used for commercially producing oxazolidinone antibacterial agents. The method for preparing 3-substituted phenyl-5-hydroxymethyloxazolidine-2-ketone through two-step reaction has the characteristics of less steps, cheap and available raw materials, mild reaction conditions and the like, and is simple to operate; and by using the method in the invention, production efficiency is improved, production energy consumption is reduced, safe production coefficient is improved, production cost is reduced, environment pollution is reduced, thus the method in the invention is an environmentally-friendly low-carbon green synthesis method.

The invention discloses a preparation method of brominated double long chain quaternary ammonium bactericide crude drugs for livestock. The preparation method uses bromoalkane and a dimethylamine agueous solution as starting material, completes synthesis of the target product at 80 DEG C under normal pressure status through action of a catalyst, and thereby solves the problems that requirements for production equipment are high and security risk is high when methyl bromide is used; uses a home-made high molecular surfactant as the catalyst, recycles the catalyst, and thereby reduces production cost; can be widely used in breeding environment disinfection, utensil disinfection and aquaculture water disinfection.

The invention aims to provide a remote operation device for a visualized power distribution cabinet circuit breaker trolley, which comprises a circuit breaker and a main controller module, wherein the circuit breaker is provided with an electromagnetic clutch apparatus, a side plate of the circuit breaker is provided with a camera, a switching-on position and a switching-off position of the side plate are respectively provided with a switching-on sensor and a switching-off sensor, a pedestal of the circuit breaker is provided with a fixed guide rail, the fixed guide rail is provided with a circuit breaker trolley bottom plate, the pedestal at one end of the fixed guide rail is provided with a vertical fixed plate and a motor, and the motor, the camera, the switching-on sensor and the switching-off sensor are connected with the main controller module. The remote operation device can achieve remote operations, thereby achieving remote visualized operations of a coal mine power distribution apparatus, greatly improving the digitalized management level and high-efficiency and safe production of a coal mine, guaranteeing the personal safety and improving the safety production coefficient.

The invention provides a transformer voltage wireless measurement device, belongs to the technical field of power transformation, and mainly solves the problems that the cost and the loss are high and potential safety hazards exist to operating personnel when a mutual inductor is used for measurement in the prior art. The transformer voltage wireless measurement device comprises a transformer magnetic circuit and is characterized by further comprising a voltage sampling device, and the voltage sampling device comprises a solitary turn coil, an analog-digital conversion device and a wireless transmitter; the magnetic circuit is wound with the solitary turn coil, the solitary turn coil is close to a tested primary side or auxiliary side coil, the analog-digital conversion device is connected between two ends of the solitary turn coil, an output end of the analog-digital conversion device is connected with the wireless transmitter, and an induction voltage value in the solitary turn coil is transmitted to a receiving device through the wireless transmitter.

The invention provides a non-contact three-dimensional thermal displacement detection system and application thereof. The non-contact three-dimensional thermal displacement detection system comprises a binocular camera, a laser range finder, a visual processing cabinet and a computer control system, and the binocular camera and the laser range finder conduct signal collection on displacement; and then the collected signals are transmitted to the visual processing cabinet, and the visual processing cabinet transmits the signals to the computer control system. The embodiment of the invention provides a non-contact three-dimensional thermal displacement detection system and application thereof, the non-contact three-dimensional thermal displacement detection system provided by the invention adopts an artificial intelligence technology, realizes a measurement mode of parameters such as boiler expansion amount and pipeline displacement amount, can perform automatic early warning on safe operation of equipment, improves the intelligent level of the power plant, improves the safety production coefficient of the power plant, gains economic benefits for the power plant, and guides digital construction and intelligent operation of the power plant.