37results about How to "Reduce dust particles" patented technology

A thin-plate container comprises a container body with an opening and an interior area and being pivotally connected to at least a pair of swing hooks near its opening; a container door for closing the opening of the container body; and a latch component disposed in the container door, which is movable in a to-and-fro direction between a first position and a second position when the container door closes the opening of the container body, wherein in the first position, the latch component is contained in the container door, and in the second position, the latch component extends beyond the container door and is in contact with the pair of swing hooks of the container body for making the container door to move in a sealing direction by using the swing hooks to achieve a sealed status between the container door and the container body.

The invention discloses a separation method for carbon monoxide in smelting furnace gas. The method comprises the following steps: cooling and dedusting furnace gas exhausted from a smelting furnace and then pressing the furnace gas with a compressor into a pressure swing adsorption device for furnace gas separation, wherein the process of pressure swing adsorption is used for furnace gas separation so as to realize concentration and purification of carbon monoxide, adsorption temperature is 20 to 55 DEG C, and adsorption pressure is 0.25 to 1.2 MPa. Equipment used in the separation method comprises the compressor and the pressure swing adsorption device; one end of a cylinder in the compressor near a crankshaft is provided with an air inlet and an air outlet, airways communicated with the air inlet and the air outlet are respectively provided with an inflowing air control valve and an outflowing air control valve, and the inflowing air control valve and the outflowing air control valve are both provided with rotation valve cores which are connected with the crankshaft through a mechanical transmission device. The method provided in the invention overcomes the problem of high cost in separation and recovery of carbon monoxide gas from smelting furnace gas in the prior art.

The invention relates to a vertical shaft drilling rig for preventing dust dispersion for petroleum, comprising a main body and an engaging cover, the main body is provided with a support plate, and the main body and the support plate are fixedly connected, and the inner side of the support plate is installed with Turntable, the lower end of the support plate is fixed with a hydraulic cylinder, and the support plate and the hydraulic cylinder are closely bonded, the bottom end of the hydraulic cylinder is connected with a sliding box, and the hydraulic cylinder and the sliding box are in a vertical structure. The anti-dust dispersion vertical shaft drilling rig for oil can be used for oil mining by starting the motor, and the vertical shaft drilling machine can be used for oil mining through the up and down movement of the sliding box and the motor on the slide bar. Provide a large amount of up and down lifting space, and can also increase the intensity of oil extraction work, so as to reduce the dust in the air, and through the rubber plate and sensors, it can detect the dust density around the oil extraction.

The invention relates to the technical field of metal ore smelting, and discloses a method for smelting metal ores. The method comprises the following steps: raw ores and carbon are smelted in a submerged arc furnace by virtue of discharge heating by an electrode of the submerged arc furnace, furnace gas exhausted by the submerged arc furnace firstly passes through a raw material preheater for preheating the ores to be charged into the furnace, and the furnace gas is cooled down at the same time; the cooled furnace gas passes through a liquid-gas separator and a dust remover, so that moisture and dust in the furnace gas are removed; the furnace gas, of which the moisture and the dust are removed, is separated; the separated CO is transmitted to a central through hole of the electrode via an electrode gas-supply device, and is supplied into the furnace materials in smelting. The method can solve the problems of low metal smelting efficiency and high energy consumption of the existing submerged arc furnace.

This invention relates to a packaging structure of chips and a manufacturing method including: providing a base board with at least one open-end through it, forming a block element surrounding the open-end of the board, forming an adhering element around the block element, setting a chip on the board and covering the open-end and fixing it with the adhering element on the board, in which, the active surface of the chip is facing to the open-end and part of which exposes it, utilizing a conduction connection element to pass through the open and connect with the active surface of the chip and the bottom surface of the base board electrically and forming a packaging colloid to wrap the element, in which, when the block element is set around the open to resist against adhering the chip, the overflow of the adhering element pollutes the conducting connection points on the active surface of the chip and limits height of the adhering element to reduce the probability of harming the active surface of chips by dust (such as EMC fillers).

The invention discloses an air wall sealing type double positive pressure purification workbench which comprises an air inlet system, and a flow guide and pressure division area is arranged below the air inlet system, wherein the bottom of the flow guide and pressure division area is provided with a flow diffusion plate, and a working cavity is arranged below the flow diffusion plate and communicated with an air suction system; the height of the flow guide and pressure division area is 40-60mm, and a flow guide and pressure division plate is arranged in the flow guide and pressure division area; the flow guide and pressure division plate is obliquely arranged in the flow guide and pressure division area and divides the flow guide and pressure division area into a front area and a rear area with trapezoidal cross sections; the front area with the trapezoidal cross section is in a form that an air inlet end is large, and an air outlet end is small, and the rear area with the trapezoidalcross section is in a form that the air inlet end is small, and the air outlet end is large. The workbench has reasonable structure and can effectively guarantee the clean class of the working cavityand the safety of operating personnel.

The invention discloses an adsorption concentration heat storage type catalytic combustion device, and relates to the technical field of catalytic combustion. The adsorption concentration heat storagetype catalytic combustion device comprises a loosening and tidying mechanism, a preheating box, a combustion box and a dust removal box. The top of the combustion box is fixedly connected with a discharging box, one side of the discharging box fixedly communicates with a feeding pipe, and the feeding pipe is fixedly provided with a feeding valve. A fixed grinding table is fixedly connected to thebottom of the inner side of the discharging box. A grinding groove is formed in the top of the fixed grinding table. A discharging channel is formed in the fixed grinding table and communicates withthe interior of the combustion box. The top of the discharging box is fixedly connected with a motor. The top of the inner side of the discharging box is rotationally provided with a second rotation rod. An output shaft of the motor penetrates through the discharging box through a coupler and is fixedly connected with the top end of the second rotation rod, the bottom end of the second rotation rod is fixedly connected with a smashing roller, and smashing teeth are welded to the outer side face of the smashing roller. The adsorption concentration heat storage type catalytic combustion device is good in catalytic combustion effect, capable of saving energy and environment-friendly.

The invention relates to a high efficient water heater capable of making full use of biomass fuels. The key lies in that a gasification chamber, three combustors, a spiral filter, an ash bucket, a slag charge chamber, pipelines and components are all arranged in a heater body capable of being filled with water. The pipelines and the components are connected with the combustors. Biomass fuels are gasified into combustible gas in the gasification chamber. After a mount of biomass fuels is gasified and then is combusted in a main combustor. Fuel gas which is in incomplete combustion in the main combustor is combusted subsequently in a second combustor and a third combustor. After the biomass fuels are gasified, the biomass fuels are fully combusted, biomass energy is released greatly, and the overall structure is scientific and reasonable. Through a form of water covering heat, heat energy is in high efficient use. PM 2.5 in exhausted smoke is next to nothing, and the smoke is almost clean, black-free, sulfur-free, and has non-toxic substances. The high efficient water heater capable of making full use of biomass fuels is suitable for hot water supply for life and heat supply in winter of communities, schools, hospitals and hotels, and also suitable for taking place of coal boilers, oil boilers, gas boilers and electric heating water supply devices in industrial production. Hot water is supplied for drying materials and products.