10 results about "Feed pressure" patented technology

The utility model discloses a kind of terephthalic acid filtering devices, including shell, the shell is installed on external equipment, pressure regulating mechanism is provided on the shell, the pressure regulating mechanism includes water inlet pipe, spacer, filter bag and water outlet pipe, the water inlet pipe and water outlet pipe are respectively installed in the both sides of the shell, the spacer is installed in the shell, the water inlet pipe is connected in the upper layer of spacer, the water outlet pipe is connected in the lower layer of spacer, overflow pipe is equipped with on the water inlet pipe, this innovative terephthalic acid filtering device is through the intelligent pressure regulating system of careful design, effectively solve the technical problem that filter bag in traditional equipment is damaged due to pressure fluctuation, realizes the safe and stable operation of production process, and its core technical advantage lies in introducing an automatic pressure regulating mechanism, can respond to the fluctuation of feed pressure in real time, and automatically start pressure relief protection when pressure exceeds safety threshold.

This invention relates to the field of vanadium chemical metallurgy technology, and discloses a method for controlling the moisture content of ammonium polyvanadate in plate and frame filter presses. The method includes the following steps: starting the feed pump to deliver ammonium polyvanadate slurry into the plate and frame filter press; continuing to feed after the feed pressure reaches a set threshold to compact the filter cake; dewatering the filter cake by blowing air; after the blowing process is completed, first controlling the main hydraulic cylinder to slightly retract to loosen the filter plates, maintaining this slightly loose state for a preset time to drain any remaining water from the plates and frames, then completely loosening the plates and frames and unloading the material. This invention also provides an ammonium polyvanadate product. The method of this invention solves the problems of high filter cake moisture content, fluctuating dewatering effect, insufficient blowing efficiency, backflow during unloading, and blockage in subsequent conveying processes during existing plate and frame filter presses, achieving stable control of filter cake moisture content.

The application discloses a kind of through-wall fire extinguishing device and its using method, belong to fire-fighting equipment field.The device includes supporting assembly and fire extinguishing assembly;Fire extinguishing assembly includes first shaft cylinder, coaxial sleeve is arranged on the outside of first shaft cylinder and can rotate and axially slide second shaft cylinder, perforator and rotating disc.Fire extinguishing assembly is configured with first flow path drive rotating disc rotation, second flow path guides fire extinguishing fluid to at least part by rotating disc defined feed pressure chamber to drive axial feed, and third flow path is open when feeding to predetermined position, so that fire extinguishing fluid is sprayed outward through perforator.The application is compact in structure, reliable to start under low water pressure, automatically feed and automatically spray water after drilling, suitable for limited space.

The utility model discloses a raw material batching device capable of improving clinker strength, which relates to the technical field of raw material batching devices and comprises a batching box, feeding pipelines and a mixing mechanism, and the two sides of the top end of the batching box are in butt joint with the feeding pipelines. When the raw material batching device capable of improving the clinker strength is used, materials can be subjected to multidirectional stirring force in the batching box through the mixing mechanism, so that the materials are more uniformly dispersed in the device, the turbulence effect in the stirring process can be enhanced, the uniformity and efficiency of material mixing are improved, and the mixing period is shortened; and the interior of the feeding pipeline is divided into four small spaces, so that only materials in a single space enter the batching box in unit time, the feeding pressure is relieved, the feeding pipeline is prevented from being blocked due to too large feeding pressure, and therefore when the raw material batching device capable of improving the clinker strength is used, the clinker strength is improved. The effects of conveniently relieving the feeding pressure and improving the mixing efficiency are achieved.

A method (400) for controlling a regulating valve (206) of a packaging machine (100), wherein the packaging machine (100) is a roll-fed packaging machine configured to receive a roll of carton-based packaging material (102). The packaging machine (100) is connected via the regulating valve (206) to a processing line (202), which supplies a liquid food product (216) to the packaging machine (100) via the regulating valve (206). The method (400) includes measuring (S402) a product flow rate of the liquid food product in the packaging machine (100) using a flow meter (106) and measuring (S404) an inlet pressure measurement (306) of the liquid food product in the packaging machine (100) using a pressure sensor (204), using the inlet pressure measurement of the packaging machine (100) to adjust a control valve (206), the control valve being configured to receive an output signal of a flow feedforward module (308) in combination with an output signal of a flow proportional, integral, and derivative (PID) module (310), the flow feedforward module (308) having the inlet pressure measurement (306) and a flow setpoint as input signals, and the flow PID module (310) having the product flow rate and the flow setpoint as input signals.

This invention discloses an adaptive decision-making method for drilling operation parameters based on feed damping and mechanical specific energy, comprising: S1: acquiring feed pressure, rotational speed, torque, and drilling speed as drilling parameters, and performing median filtering using a sliding window to obtain filtered drilling parameters; S2: calculating the feed damping coefficient, determining the range of variation of the feed damping coefficient, and converting the feed damping coefficient into an adaptive adjustment index; S3: calculating the mechanical specific energy, and combining it with the feed damping change rate to determine whether the direction of updating the operation parameters needs to be changed, and adjusting the parameter update flag; S4: deciding the final change value of the feed pressure based on the adaptive adjustment index and the parameter update flag. This invention designs an adaptive adjustment strategy for operation parameters based on the magnitude of the feed damping coefficient, and uses mechanical specific energy as a key indicator for evaluating the quality of operation parameters, achieving optimal drilling parameters under different geological conditions; experimental data shows that the proposed method can effectively reduce mechanical specific energy, achieving low-energy consumption and high-efficiency drilling.

This application belongs to the field of uranium isotope separation technology, and relates to an interstage magnetic levitation flow transport system and method for uranium isotope separation cascade systems. The device is connected as follows: the section feed line is connected to the magnetic levitation compressor, and the rear end of the magnetic levitation compressor is connected to the unit feed line; after the magnetic levitation compressor starts, the section feed pressure decreases, and the unit feed pressure increases, thereby realizing interstage pressurization and transmission in the uranium isotope separation cascade system. This application, by using a magnetic levitation compressor, eliminates the need for lubrication in traditional equipment, resulting in low energy consumption during operation and eliminating the need for cooling water, thus reducing operating and maintenance costs. Simultaneously, the application of the magnetic levitation compressor reduces noise from the pressurization equipment, improves the production environment, and further protects workers' occupational health.

The application discloses a static spraying device for pallet fork production and relates to the technical field of pallet fork spraying. The static spraying device provides static spraying through a working assembly, and coating particles are directionally adsorbed on the surface of the pallet fork through an electrostatic field, so that the uniformity and availability of the coating are improved. The pallet fork is grounded as an anode, the rotary disc spray head is used as a cathode, an electrostatic generator forms a strong electric field between the rotary disc spray head and the pallet fork, the coating is electrified after being atomized by the rotary disc spray head, and the coating directionally flies to the surface of the pallet fork under the action of the electric field force, so that a uniform wet film is formed. The supply system composed of the diaphragm pump and the gear pump improves the anti-interference capability. The diaphragm pump provides stable feeding pressure for the gear pump, the gear pump accurately controls the feeding flow rate through stable rotating speed, and the gear pump provides uniform and continuous material supply for the rotary disc spray head. The pneumatic motor drives the rotary disc spray head to rotate at a high speed, liquid is dispersed into uniform and small droplets through centrifugal force, and the liquid is atomized.

The utility model relates to poultry breeding equipment technical field, and disclose a kind of feeding frame for raising chickens convenient to move, including ladder type feeding frame, the side of the upper surface of ladder type feeding frame is provided with feeding trough, the top of ladder type feeding frame is equipped with linear guide rail, the inside of linear guide rail is provided with electric slide, the upper surface of electric slide is equipped with feed conveying pump, the top of ladder type feeding frame is provided with feed storage box.This feeding frame for raising chickens convenient to move, through linear guide rail, electric slide drive feed conveying pump moves, combine feed storage box, material conveying pipe, branch pipe and with the feeding trough corresponding feeding pipe, can be feed storage box in the feed pressure after conveying pump, through branch pipe evenly distributed to each feeding pipe and is conveyed to feeding trough, realize the automatic conveying of feed and uniform feeding, reduce the workload of artificial feeding, improve feeding efficiency, guarantee chicken population eating evenly simultaneously.

This invention discloses a pressure-stabilized feeding system for chemical production, comprising a material storage tank, a reactor, a feed pump, a pressure-stabilizing mechanism, a flow-diverting mechanism, and a buffer tank. A first conduit connects the feed pump inlet to the material storage tank. The pressure-stabilizing mechanism is installed between the feed pump outlet and the reactor. The pressure-stabilizing mechanism includes a housing with a feed conduit and a pressure-stabilized discharge conduit. The feed conduit is connected to the feed pump, and the pressure-stabilized discharge conduit is connected to the reactor. The housing also has a residual material return conduit connected to the flow-diverting mechanism, which in turn connects to the buffer tank and the material storage tank. By adding a pressure-stabilizing mechanism, the pressure in the pressure-stabilized discharge conduit fluctuates within a small range, improving the control accuracy of the flow meter and preventing excessive feed pressure from causing impacts that could affect the composition of the material inside the reactor.